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Title:
A FIXTURE FOR INSTALLATION OF JUNCTION BOXES INTO BUILDING SURFACE
Document Type and Number:
WIPO Patent Application WO/2019/092606
Kind Code:
A1
Abstract:
The fixture it consists of a flat panel, and the flat panel contains flat panel (1) to fix junction boxes (7) and two flat panels (11) for allowance, at least. One, at least, through hole (8) to fix one or more junction boxes (7) is/are in the flat panel (1) to fix junction boxes (7). It is advantageous if the fixture is transparent or translucent. The fixture is completed with dismountable fixing system (6), and it is advantageous if fitted with washers (5), to fix junction boxes (7) into fixing holes (13) in junction boxes (7). It is advantageous if the fixture is fitted with one level (3), at least, and better if with two levels (3) positioned on two adjacent sides of the fixture, and perpendicular one to another. It is advantageous if the fixture is fitted with length gauges (2) and one mark (4), at least. It is advantageous if the fixture is fitted with spacers (9) or space-shaped – with offset of the flat panel (1) to fix junction boxes (7) against flat panel (11) for allowance.

Inventors:
KURKA ING ALEŠ (CZ)
Application Number:
PCT/IB2018/058739
Publication Date:
May 16, 2019
Filing Date:
November 07, 2018
Export Citation:
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Assignee:
KURKA ING ALES (CZ)
International Classes:
H02G3/12
Foreign References:
DE965513C1957-06-13
DE8127984U11982-02-25
DE20317938U12004-07-01
DE20017176U12000-12-28
DE4415546A11995-11-16
DE20013427U12001-05-10
Attorney, Agent or Firm:
PATENT SKY S. R. O. (CZ)
Download PDF:
Claims:
PATENT CLAIMS

1. A fixture for installation of junction boxes into building surface characterized by the fact that it consists of a flat panel that contains a flat panel (1) to fix junction boxes (7) and at least two flat panels (11) for allowance and a wall of the flat panel (1) to fix junction boxes (7) is determined by the smallest polygon that covers all (a) hole(s) (12) on a face side of the junction box(es) (7) at the same time and panels (11) for allowance are parallel to said panel (1) to fix junction boxes (7) and they are positioned outside the polygon of the flat panel (1) to fix junction boxes (7), at least from two sides, and a side of the flat panel (11) for allowance is perpendicular to an adjacent side of the polygon and it has at least 10 mm, and the flat panel (1) to fix junction boxes is equipped with at least one through hole (8) and the fixture is equipped with at least a single-point dismountable fixing system (6) and the dismountable fixing system (6) passes through hole (8).

2. The fixture according to claim 1 characterized by the fact that the flat panel is a board or a grid.

3. The fixture according to claim 1 characterized by the fact that the flat panel (1) to fix junction boxes (7) is equipped with at least two through holes (8) and the fixture is equipped with at least two-point dismountable fixing system (6).

4. The fixture according to claim 3 characterized by the fact that a spacing of through holes (8) in the flat panel (1) to fix junction boxes (7) is fitted to a spacing of fixing holes (13) in one junction box (7) and/or between junction boxes (7).

5. The fixture according to claim 1 characterized by the fact that the flat panel is transparent or translucent.

6. The fixture according to claim 1 and 5 characterized by the fact that the flat panel is made of polycarbonate or polymethylmethacrylate.

7. The fixture according to claim 1 characterized by the fact that the dismountable fixing system (6) is screwed or bolted.

8. The fixture according to claim 1 or 7 characterized by the fact that the dismountable fixing system (6) is a bolt, screw, screw with wing-cap or bolt with wing-cap.

9. The fixture according to claim 1 or 7 or 8 characterized by the fact that the dismountable fixing system (6) is equipped with washer (5).

10. The fixture according to claim 9 characterized by the fact that washer(5) is made of rubber.

11. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one level (3).

12. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one length gauge (2).

13. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one mark (4).

14. The fixture according to claim 1 characterized by the fact that the flat panel (1) to fix junction boxes (7) is set-off against the flat panel (11) for allowance.

15. The fixture according to claim 1 characterized by the fact that the flat panel (11) for allowance is equipped with spacers (9).

16. The fixture according to claim 15 characterized by the fact that spacers (9) are made of transparent or translucent material.

17. The fixture according to claim 15 or 16 characterized by the fact that spacers (9) are fitted with at least one mark (4) and/or the length gauge (2).

18. The fixture according to claim 15 characterized by the fact that spacers (9) and the flat panel (11) for allowance are fitted with a sunk magnet and/or spacers (9) are fitted with an alignment pin and the flat panel (11) for allowance is fitted with a fitting hole.

19. The fixture according to claim 15 or 16or 17 characteri zed by the fact that spacers (9) are slipped on the flat panel for allowance (11), namely by a wedge pin or a C collar.

20. The fixture according to claim 1 characterized by the fact that the flat panel has thickness of 4 mm to 10 mm.

21. The fixture according to claim 1 characterized by the fact that panels(ll) for allowance fit to the panel (1) for installation of junction boxes (7).

22. The fixture according to claim 1 characterized by the fact that panels(ll) for allowance are positioned on the opposite and/or neighbouring external sides of the polygon of the panel (1) to fix junction boxes (7).

AMENDED CLAIMS

received by the International Bureau on 04 April 2019 (10.04.2019)

1. A fixture for installation of junction boxes into building surface characterized by the fact that it consists of a flat panel, which is transparent or translucent board or a grid, that contains a flat panel (1) to fix junction boxes (7) and at least two flat panels (11) for allowance, which are underlayable by spacers (9), and a wall of the flat panel (1) to fix junction boxes (7) is determined by the smallest polygon that covers all (a) hole(s) (12) on a face side of the junction box(es) (7) at the same time and panels (11) for allowance are parallel to said panel (1) to fix junction boxes (7), panels (11) for allowance fit to the panel (1) for installation of junction boxes (7) and they are positioned outside the polygon of the flat panel (1) to fix junction boxes (7), at least from two sides, and a side of the flat panel (11) for allowance is perpendicular to an adjacent side of the polygon and it has at least 10 mm, and the flat panel (1) to fix junction boxes is equipped with at least two through holes (8) and the fixture is equipped with at least a two-point dismountable fixing system (6), which is screwed or bolted and equipped with washer (5), and the dismountable fixing system (6) passes through holes (8) and a spacing of through holes (8) in the flat panel (1) to fix junction boxes (7) is fitted to a spacing of fixing holes (13) in one junction box (7) and/or between junction boxes (7).

2. The fixture according to claim 1 characterized by the fact that the flat panel is made of polycarbonate or polymethylmethacrylate.

3. The fixture according to claim 1 characterized by the fact that the dismountable fixing system (6) is a bolt, screw, screw with wing-cap or bolt with wing-cap.

4. The fixture according to claim 1 characterized by the fact that washer (5) is made of rubber.

5. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one level (3).

6. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one length gauge (2).

7. The fixture according to claim 1 characterized by the fact that the flat panel is equipped with at least one mark (4).

8. The fixture according to claim 1 characterized by the fact that the flat panel (1) to fix junction boxes (7) is set-off against the flat panel (11) for allowance.

9. The fixture according to claim 1 char acteri zed by the fact that the flat panel (11) for allowance is equipped with spacers (9).

10. The fixture according to claim 9 characterized by the fact that spacers (9) are made of transparent or translucent material.

11. The fixture according to claim 9 or 10 characterized by the fact that spacers (9) are fitted with at least one mark (4) and/or the length gauge (2).

12. The fixture according to claim 9 char acteri zed by the fact that spacers (9) and the flat panel (11) for allowance are fitted with a sunk magnet and / or spacers (9) are fitted with an alignment pin and the flat panel (11) for allowance is fitted with a fitting hole.

13. The fixture according to claim 9 or 10 characterized by the fact that spacers (9) are slipped on the flat panel for allowance (11), namely by a wedge pin or a C collar.

14. The fixture according to claim 1 characterized by the fact that the flat panel has thickness of 4 mm to 10 mm.

15. The fixture according to claim 1 characterized by the fact that panels (11) for allowance are positioned on the opposite and/or neighbouring external sides of the polygon of the panel (1) to fix junction boxes (7).

Description:
A FIXTURE FOR INSTALLATION OF JUNCTION BOXES INTO BUILDING SURFACE

Field of technology

The invention applies to and fixture for installation of junction boxes into and building surface that facilitates simpler, quicker and more precise installation of the boxes for the installation of wiring, networks, security and safety systems, data networks, media distribution networks and the like into walls, ceilings, floors and other, mostly flat, building surfaces.

State of the Art

Currently, the installation of junction boxes into building surfaces, like walls, ceilings, floors and the like is carried out manually, mostly using plaster, inserted in the bed of the junction box and subsequently fitting and pushing this box into applied plaster. The ideal position of the junction box towards the flat surface and towards the intended ideal position is achieved with difficulties and hard using a manual level where the level serves both for pushing the junction box into the flat surface and subsequently the junction box or a set of junction boxes is oriented with it to the required slope, usually horizontal or vertical. Any correction of the position or orientation of the junction box before the plaster gets rigid enough will cause unrequired change of its position and orientation in other directions automatically. Therefore it is necessary to check again after any such correction if the junction box has deflected from the up-to-now maintained position and orientation or not. It is necessary to realise that each body has 6 degrees of freedom and its precise fixation and orientation in space is therefore rather difficult, demanding repeated measurements and frequent corrections. Nevertheless, material deflections in position and orientation of already fitted junction boxes against the required ones occur often in practice. A wrong position is the more marked, the longer set of junction boxes we have installed. Usually up to five boxes are installed one next to another in the horizontal position or one above another in the vertical position. In such a case the set measures up to 40 cm and deflections in case of wrong positioning measure centimetres.

Therefore the goal of the technical solution is to create a fixture that will facilitate simpler, quicker and more precise installation of the junction boxes into surfaces and will eliminate these big inaccuracies. Description of the invention

The intended goal has been achieved using a fixture for installation of junction boxes applicable in installation of wiring, networks, security and safety systems and data and media distribution networks into flat building surfaces according to the invention. The fixture for installation of junction boxes involves a flat panel. The flat panel contains a flat panel to fix the junction boxes and two flat panels for allowance, at least, where the flat panel to fix junction boxes and flat panels for allowance are parallel one to another. The flat panel to fix junction boxes on a flat panel is positioned where the flat panel covers a face hole of already fixed junction boxes. A wall of the flat panel to fix junction boxes is determined by the smallest polygon that covers all the holes on the face side of the junction box(es) at the same time. The flat panels for allowance are determined outside the polygon, from two sides, at least, thus outside the front projection of the fixed junction box or boxes, and the side of the flat panel for allowance perpendicular to the adjacent side of the polygon stretches to 10 mm, at least. It is advantageous if the panels for allowance are positioned on the opposite and/or neighbouring external sides of the polygon of the panel to fix junction boxes. It is advantageous if the flat panel to fix junction boxes is implemented as a board or a grid, equipped with one, at least, through hole, and the fixture is equipped with a single-point dismountable fixing system, and it is advantageous if the system uses screws or bolts. The through hole or holes are positioned in the fixture in the spot where they fit to fixing holes in the junction box or boxes after the junction box is put in place and then the fixing system passes through a flat panel to fix junction boxes to the fixing hole or holes of the junction box or boxes where it is fixed in a dismountable way, and it is advantageous if this is done by screwing or drilling on. The junction boxes can be set in a battery in a single line or arbitrarily one to another, and the through holes in the flat panel to fix junction boxes copy always positions of fixing holes in the junction boxes, and therefore the holes fit one to another.

It is advantageous if the fixture is made of transparent or translucent material with thickness of 4 to 10 mm which provides for adequate toughness of the flat panel within installation of the boxes. It is advantageous if the side of the flat panel for allowance stretches up to, at least, the internal diameter of a face hole of one round junction box. It is advantageous if the fixture is fitted with more through holes compatible with a multi-point dismountable fixing system, and the through holes can be threaded. It is advantageous if the dismountable fixing system consists of screws, bolts, wing-cap screws or bolts and if it is fitted with washers, advantageous if of soft material like rubber. It is advantageous if the fixture is fitted with, at least, one mark which facilitates positioning of the fixture into the right orientation, and the mark is drawn on the contact face of the fixture - thus on the one which fits to the building surface. The mark can be carried out using paint or shaped and it is advantageous if this is carried out with milling or a cu tout in the board. It is advantageous if the fixture is fitted with, at least, one level, and the optimum design uses two levels on two perpendicular adjacent sides of the fixture facilitating orientation of the fixture in two directions - vertical and horizontal if installation of junction boxes into a vertical wall is concerned. It is advantageous if the fixture is fitted with length gauges.

It is advantageous if the fixture is fitted using offset flat panels to fix junction boxes which allow offset of the junction box or of the boxes against the building surface. Offset of the flat panels to fix junction boxes can be done in two ways, either flushing the flat panels for allowance against the flat panel to fix junction boxes, particularly of contact surfaces of the flat panels for allowance that adjoin to the building surface, or padding the flat panels for allowance with two, at least, spacers. It is advantageous if flushing of the panels for allowance is done through shaping the step between the panel for allowance and the panel to fix junction boxes, as it is presented in Figures 4, 5 and 6. This is frequently used for planned siding of a building surface, e.g. with tiles. The thickness of the spacers or flushing depth is selected according to the intended thickness of coat. It is advantageous if the spacers are equipped with marks fitted to marks on the flat panel at their contact sides which facilitates precise setting of the fixture into the right position against reference a levelling mark or marks on the building surface when using the spacers. The marks on spacers can be carried out using paint or shaped, and it is advantageous if this is carried out with milling or a cutout in the board. It is advantageous if the spacers are fitted with alignment pins fitting into corresponding holes in the fixture, providing for precise fixation of the spacers against the fixture, e.g. using wedge or dovetail tenons. It is advantageous if the spacers and the fixture are fitted with a sunk magnet which fixes the spacers to the fixture. It is advantageous if spacers can have the shape of a C-collar, and the spacers are inserted on the flat panels for allowance and this way fixed to the fixture and fitted with them along the axis at the same time. The optimum offset of the junction box or boxes against the flat panels for allowance is achieved because of using the fixture with offset flat panels to fix junction boxes, and the face edge of the junction box or of the boxes will be flushed with subsequently installed coat.

A suitable fixture with through holes and a dismountable fixing system is selected according to the required shape of the junction box, or junction boxes. The junction boxes are put on the flat panel to fix junction boxes, thus on the contact side of the board or the grid, and they are fixed using the dismountable fixing system through the holes in the fixture to the board or the grid using the fixing holes of the junction boxes. It is advantageous if spacers providing for fine tightening, e.g. rubber, plastic, teflon, metal and the like, are placed between the dismountable fixing system and the flat panel for installation of junction boxes. This way the board or the grid forming the flat panel for installation of junction boxes is protected against break within tightening of screws or bolts. It is advantageous if the flat panel is transparent, for example produced of polycarbonate or methylmetacrylate glass which facilitates easy and precise positioning of the fixture with the fixed junction box or boxes into a hole in the building surface, in a wall, in a ceiling, in a floor and the like. Because of transparent material of which the flat panel is produced, the position of the junction box or of the boxes can easily be dry tested which will check whether anything harms fitting the junction box or the boxes into the intended final position. In the opposite case, the wrong fit of the junction box into the hole is easy to find and therefore it can be corrected with additional tooling of the hole.

The final fitting of the junction box or of the boxes is carried out into a plaster bed in the building surface, and the contact face of the flat panels for allowance of the fixture will fit to the adjacent flat building surface of the wall, ceiling, floor and the like around the formed hole filled with plaster. This way the fully precise depth of fitting the junction box or the boxes and also the perfect smooth fit of the junction box or of junction boxes with the adjacent building surface are achieved. Three of the six degrees of freedom are removed off the junction box. The remaining degrees of freedom are transverse gradient, or horizontal plane of the junction box and its height and side positions. The horizontal or vertical plane is to be set either using an applied level or better using levels that are part of the fixture or fitting marks on the fixture to reference level marks marked on the building surface next to the building hole. The correct height and side position is achieved using marks and length gauges where the distance from the reference point or mark can be measured. It is advantageous if two neighbouring sides of the flat panel of the fixture are fitted with levels, perpendicular one to another, to facilitate precise positioning of the fixture on the building surface. The flat panel of the fixture is fitted with length gauges and marks in one or more directions or angles at its contact side to facilitate easier and more precise setting of perpendicular inclination and height and side position of the junction box or of the boxes into the required final position and orientation in space. Thus the fixture with a fitted junction box or boxes can be placed and orientated towards the required final position easily, concerning not only horizontal or vertical features, marked with reference levelling mark on the building surface next to the hole.

To facilitate the installation of the junction box or of the boxes offset towards installation plane, for example where future coating of building surface is expected, the flat panel to fix junction boxes is offset by the required thickness of the planned coat or backed with spacers of the required thickness against the flat panels for allowance. The spacers are fixed in a suitable way to the fixture.

In cases where the flat ambient of the hole for a junction box or more junction boxes is restricted from one or more sides, for example when placing the junction box next to an adjacent perpendicular wall, an asymmetric fixture will be used, the flat panels for allowance of which are reduced in one or more directions. Another option is to apply a break-off flat panel, particularly a board fitted with deep grooves. It is advantageous if the grooves have depth up to 50 to 70 % of the thickness of the flat panel for allowance. It is advantageous if deep grooves are positioned in the point of length gauges, and the edge parts of the fixture, thus the flat panels for allowance or their parts can break-off because of the deep grooves in the required spot - this way flat panels for allowance can be reduced and an asymmetric fixture tailored according to the position of the required hole created.

Thus the fixture contains a flat panel with flat plane that contains the flat panel to fix junction boxes and the flat panels for allowance. It is advantageous if the flat panel is carried out as a board or a grid. It is advantageous if the flat panel to fix junction boxes is fitted with entries. If a flat panel is carried out as a board, these entries are advantageous if they copy the shape of the face hole of the junction box or of the boxes and they have the centre concentric with the centre of the face hole of the junction box. It is advantageous if these entries have their size in the board reduced to, at least, 80% of the inside dimension of the face hole of the junction box. When fitting a junction box into a building current, wiring passes through these entries in the building hole and it also facilitates fitting of junction boxes in this case. When the flat panel is carried out as a grid, the grid has guiding partitions where through holes to fix a junction box or boxes are positioned. The entries are carried out as mesh. The grid frame fits to the building surface and wiring passes through the mesh. The grid also can have break-off allowance for asymmetric positioning of the junction box or boxes as well as a mark with length gauges or levels. Positioning of spacers on the grid is carried out in the spot of guiding partitions or the grid frame.

In case when we install a single junction box, we fix it to the fixture according to its design either to the central fixing hole of the junction box or other two, at least, fixing holes of the junction box or boxes, positioned usually along the internal perimeter of the box, and spacing of fixing holes of the junction box or of the boxes corresponds to the spacing between through holes in the flat panel for installation of the boxes in the fixture in this single box. In case when we install a set of more junction boxes, for example 2 to 5 the boxes in one plane connected one to another using locks, the spacing between through holes in the flat panel for installation of the boxes in the fixture must correspond to some spacing between fixing holes of various junction boxes in the set because we fit the whole set of the boxes at one time. A set of the boxes can be fixed to the fixture using all, but at least two, and it is advantageous if three, or just some of the through holes in the flat panel for installation of the boxes in the fixture fixed using a fixing system into fitting fixing holes of the junction boxes, namely taking into account the number of the junction boxes in the set and quality of joints between the boxes in the set. Adequate fixation of mutual position of the boxes in the set and the position of the whole set towards the fixture are key issues. For example, the through hole in the fixture is positioned at one edge of the fixture, in the middle of the fixture and on the other edge of the fixture and the fixing system is fixed in a fixing point of the first, third and fifth boxes.

Figure 1 shows implementation of the fixture as a board to fit up to five round junction boxes in the side view, and the board is fitted with three through holes and with a three-point fixing system with washers. The board is equipped with a level positioned on a flat panel for allowance.

Figure 2 shows implementation of the fixture as a board to fit up to five round junction boxes in the front view, and the board is fitted with three through holes. The board is equipped with two levels perpendicular one to another and with length gauges positioned on flat panels for allowance.

Figure 3 shows implementation of the fixture as a board to fit the junction box or of the boxes in the side view.

Figure 4 shows implementation of the offset fixture as a board with spacers to fit up to three offset round junction boxes in the side view, and the board is fitted with three through holes and completed with a three-point fixing system with washers. The flat panel for allowance is fitted with spacers and provides for offset of the flat panel to fix junction boxes.

Figure 5 shows implementation of a space-shaped fixture as a board to fit up to five round junction boxes in the side view, and the board is fitted with six through holes and completed with a three-point fixing system with washers. The flat panel to fix junction boxes is offset against the flat panels for allowance.

Figure 6 shows implementation of a space-shaped fixture as a board to fit one round junction box in the side view, and the board is fitted two through holes and completed with a two-point fixing system with washers. The flat panel for allowance is extended in comparison with a panel to fix junction boxes. The step on the flat panel for allowance facilitates fitting of junction boxes offset against building surface.

Figure 7 shows a junction box in the side view, and fixing holes of the junction box including the central fixing hole are marked in Figure A at two levels. Figure B is a schematic view of the junction box.

Figure 8 shows implementation of the fixture as a board with round entries to fit up to three round junction boxes in the front view, and the board is fitted with two through holes to fix junction boxes and a horizontal mark. The round entries have their centres in the horizontal axis of the board. The flat panel to fix junction boxes and the flat panels for allowance are fitted with length gauges.

Figure 9 shows implementation of the fixture as a grid with guiding partitions to fit up to four junction boxes in the front view, and the grid is fitted with five through holes to fix junction boxes in the spot of guiding partitions, with a horizontal mark and with two levels perpendicular one to another.

Figure 10 shows implementation of spacers as a C-collar. The spacer is slipped on the flat panel for allowance, and this way both fixed in its place and fitted to the fixture. Figure A shows the front view at a flat panel for allowance of a board with a slipped-on spacer, Figure B shows the side section of a flat panel for allowance in the spot of the spacer edge.

Figure 11 shows implementation of spacers with a dovetail/wedge tenon in the side view. Using the dovetail tenon, the spacer is slipped on the dovetail hole of the flat panel for allowance and this way fixed on the spot.

Description of the drawings

1 : The fixture as a board for installation of up to five junction boxes 7 into the building surface - side view, section

2: The fixture as a board for installation of up to five junction boxes 7 into the building surface - plan view, or front view in a work position

3 : The fixture as a board for installation of junction boxes 7 into the building surface

- side view, section

4: The fixture as a board with spacers for installation of up to three junction boxes 7 into the building surface - side view, section

5 : The fixture as a space-shaped board - with an offset panel 1 and a flushed panel ϋ for allowance, for installation of up to five junction boxes 7 into the building surface - side view, section

6: The fixture as a space-shaped board - with extended panel H for allowance against panel I to fix junction boxes for installation of one junction box 7 into the building surface - side view, section

7: Junction box 7 - side view, section; A - indicated fixing holes 13 . of junction box

7; B - schematic view of junction box 7

8: The fixture as a board for installation of up to three junction boxes 7 into the building surface - plan view or front view in a work position

9: The fixture as a grid for installation of up to four junction boxes 7 into the building surface - plan view or front view in a work position

10: Spacer 9 as a C-collar; A - plan view or front view in a work position at a flat panel

11 for allowance with an installed spacer 9; B - side view, section of the flat panel

11 for allowance with an installed spacer 9

11 : Spacer 9 with a fitted dovetail tenon - side view, section - flat panel Π . for allowance with an installed spacer 9 Examples of the invention

Example 1 - basis

The fixture for installation of one round electrical junction box into a building surface.

The fixture contains flat panel I to fix junction box 7 and flat panel 11 for allowance. The fixture consists of a board of transparent glass with thickness of 5 mm. In the spot of flat panel 1 to fix junction box 7 the board is fitted with two through holes 8 that have spacing equal to spacing of fixing holes 13 of junction box 7. The board has two flat panels for allowance ϋ, and their length is equal to the inner diameter of the face hole 12 of the round junction box 7. The fixture also contains a two-point dismountable fixing system 6 consisting of two screws. The screws pass through holes 8 in the board and in the flat panel I to fix junction box 7 and during installation they are screwed in fixing holes 13 injunction box 7. Then the board with fixed junction box 7 is slipped into a finely plastered building hole in the surface of a wall, ceiling, floor and the like, and the board fits with its all contact face, or flat panel 1 to fix junction box 7 and the flat panel 11 for allowance, to the building surface. The board with affixed junction box 7 is set in both the horizontal and vertical directions using a level laid at the spot and kept in this position for 2 minutes or till the plaster bed gets stiff enough. After next 5 minutes the screws are screwed out from fixing holes 13 in the junction box 7 and the whole fixture is removed from the building surface. The precisely set junction box 7 stays in the plaster bed and after several hours when plaster is fully stiff, junction box 7 is ready for wiring.

Example 2 - superstructure, allowances in both directions, levels, horizontal mark

The fixture for installation of five round electrical junction boxes into a building surface in one line at height determined by reference marks.

Five round electrical junction boxes are connected in series, in combination with the locks, in one axis to one set. The fixture contains flat panel 1 to fix junction box 7 and flat panels 11 for allowance. The fixture consists of a board of transparent polycarbonate glass with thickness of 8 mm. The board is fitted with two levels 3 perpendicular one to another in two neighbouring sides, and both levels 3 are positioned in the flat panel li for allowance, and with a horizontal mark 4 which is a groove at the contact side of the board. The board is equipped with two flat panels for allowance ϋ in the horizontal axis of the board, and their length is equal to the inner diameter of the face hole 12 of one round junction box 7, thus they extend the length of the board. The board also is fitted with two flat panels for allowance ϋ in the vertical axis of the board, and their thickness is equal to the half of the internal diameter of face hole 12 of one round junction box 7, thus they extend the width of the board. The board is equipped with five through holes 8 that fit to fixing holes 13 of junction boxes 7. The fixture also contains a five-point dismountable fixing system 6 consisting of five wing-cap screws. Each screw is equipped with washer 5 of rubber for fine tightening of the screw to the board. The screws pass through three, at least, through holes 8 in the board and they are screwed in three, at least, fixing holes 13 . in junction boxes 7. Then the board with fixed junction boxes 7 is slipped into a finely plastered building hole realized on the surface in the wall, and flat panel I to fix junction box 7 and flat panels Π . for allowance of the fixture fit to the building surface. The board with fixed junction boxes 7 is fitted using mark 4 to levelling marks on both sides of the building hole and this way it is fitted precisely in the horizontal plane into the building plastered bed. The board is set in the vertical direction using level 3. Then the board is kept in this position for 3 minutes or till the plaster bed gets stiff enough. After next 5 minutes the screws are screwed out from fixing holes 13 . in junction boxes 7 and the whole fixture is removed from the building surface. The precisely set junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7 are ready for electrical installation and wiring.

Example 3 - superstructure, asymmetric board, levels, vertical mark, length gauges

The fixture for installation of a large square electrical junction box into a surface next to a room corner

The fixture contains flat panel I to fix junction box 7 and flat panels ϋ for allowance. The fixture consists of a board of translucent polycarbonate glass with thickness of 6 mm. The board is in two neighbouring sides fitted with two levels 3 perpendicular one to another, and both levels 3 are positioned in flat panel Π . for allowance, with three vertical marks 4 which are grooves at its contact side of a board, and length gauge 2 positioned in the flat panel JJ, for allowance. The board is equipped with two flat panels JJ . for allowance in the vertical axis of the board, and their thickness is equal to half of the size of the square edge of junction box 7, thus they extend the width of the board. The board also is fitted with one flat panel JJ . for allowance in the horizontal axis of the board, and its length is equal to the size of the square edge of junction box 7 ^ thus they extend the length of the board. The board is therefore reduced from one side for positioning of junction box 7 next to the wall corner. The board is equipped with four through holes 8 in the spot of the flat panel J . to fix junction box 7, and they have spacing equal to spacing of fixing holes J_3 of junction box 7. The fixture also contains four-point dismountable fixing system 6 consisting of four wing-cap screws. The wing-cap screws are completed with four metal washers 5 to tighten the screws to board J_. The four screws pass through holes 8 in the board and they are screwed in two, at least, fixing holes 13 in junction box 7. Then the board with affixed junction box 7 is slipped into a finely plastered building hole carried out in the corner of the wall, and the whole board, thus both flat panel 1 to fix junction boxes 7, and flat panel JJ, for allowance, fits to the building surface next to the wall corner. The board with affixed junction box 7 is positioned using vertical central mark 4 in the centre of the building plastered bed which is marked with a vertical centred levelling mark and the board is positioned in the vertical and horizontal directions using two levels 3. Then the board is kept in the spot for 3 minutes or till the plaster bed gets stiff enough. After next 3 minutes the screws are screwed out from fixing holes 13 in junction box 7 and the whole fixture is removed from the building surface. The precisely set junction box 7 stays in the plaster bed and after several hours when plaster is fully stiff, junction box 7 is ready for electrical installation and wiring.

Example 4 - offset board with spacers

The fixture for installation of three round junction boxes into a building surface in one line with offset using spacers.

Three round electrical junction boxes are connected in series, in combination with the locks, in one axis in one set. The fixture contains flat panel1 to fix junction boxes 7 and flat panels JJ, for allowance. The fixture consists of a board of transparent glass with thickness of 8 mm. The board is on two neighbouring sides fitted with two levels 3 perpendicular one to another, and both levels 3 are positioned in flat panel 11 for allowance, and with horizontal mark 4, which is a painted mark at the contact side of the board and with length gauge 2 positioned on flat panel ϋ for allowance. The board is equipped with two flat panels ϋ for allowance in the horizontal axis, and their length is equal to two thirds of the internal diameter of face hole 12 of one round junction box 7, thus they extend the length of the board. The board is equipped with two transparent spacers 9 fitted with marks 4. Spacers 9 have been selected with thickness of 12 mm which corresponds to the thickness of the planned ceramic coat of the surface. Because of using spacers 9, board 1 is set off, thus flat panel I to fix junction box 7 is offset towards flat panel 11 for allowance. The board is equipped in the spot of flat panel I to fixjunction box 7 with four through holes 8 that fit to four fixing holes 13 of junction box 7 when they are joined in a single set. The fixture also contains four-point dismountable fixing system 6 consisting of four wing-cap screws. The wing- cap screws are completed with four rubber washers 5 for fine tightening of the screws to the board. The screws pass through holes 8 in the board and they are screwed in fixing holes 13 in junction boxes 7. Then the board with fixed junction boxes 7 is slipped into a finely plastered building hole carried out in the wall surface, and the whole board is padded in spots of flat panels H for allowance with spacers 9 before fitting to the building surface. Thus the board does not fit directly to the building surface, flat panel 1 to fixjunction box 7 and flat panels 11 for allowance are offset against the building surface and they allow to set junction box 7 with the required offset against the wall surface. The board with fixed junction boxes 7 is positioned using mark 4 and levelling marks on the building surface to the centre of the building plastered bed and using two levels 3 the board is fixed in the horizontal and vertical directions. Length gauge 2 positioned on flat panel 11 for allowance is used for precise positioning of junction boxes 7, for example when placing switches in the same distance from door openings and the like. Then the board is kept in the spot for 3 minutes or till the plaster bed gets stiff enough. After next 10 minutes the screws are screwed out from fixing holes 13 in junction boxes 7 and the whole fixture is removed from the building surface. The precisely set junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7 are ready for installation of data and security and safety cables and coating the wall. Example 5 - offset board space-shaped

The fixture for installation of two round junction boxes into a surface for installation of data services in one line with offset.

Two round electrical junction boxes are connected, in combination with the locks, to each other in one set. The fixture contains flat panel 1 to fix junction box 7 and flat panels 11 for allowance. The fixture consists of a board of transparent polymethylmethacrylate glass with thickness of 5 mm. The board is fitted with two levels 3 perpendicular one to another in two neighbouring sides, and both levels 3 are positioned in flat panel ϋ for allowance, and with two marks 4 perpendicular one to another which are grooves at the contact side of the board and with length gauge 2 positioned on flat panel JJ . for allowance. The board is equipped with two flat panels ϋ for allowance in the horizontal axis, and their length is equal to the inner diameter of face hole 12 of one round junction box 7, thus they extend the length of the board. Flat panel J . to fix junction box 7 is set-off against flat panel JJ . for allowance. The offset has depth of 8 mm, which corresponds to the thickness of the planned coat of the surface. Because of offset flat panel 1 to fix junction box 7, the board is set-off. The set-off board is in the spot of flat panel 1 to fix junction box 7 fitted with two through holes 8 that fit to two fixing holes J_3 of junction boxes 7. The fixture also contains two-point dismountable fixing system 6 consisting of two wing-cap screws. The wing-cap screws are completed with two rubber washers 5 for fine tightening of the screws to the board. The screws pass through holes 8 in the board and they are screwed in fixing holes J_3 in junction boxes 7. Then the board with fixed junction boxes 7 is slipped into a finely plastered building hole carried out in surface of the wall, and flat panel JJ . for allowance fit to the building surface and because flat panel 1 to fix junction box 7 is set-off, junction boxes 7 can be fixed with the required offset against the wall surface. The board with fixed junction boxes 7 is positioned using marks 4 to the centre of the building plastered bed which is marked with levelling marks and using two levels 3 the board is fixed in the horizontal and vertical directions. Length gauge 2 positioned on flat panel JJ . for allowance is used for precise positioning of junction boxes 7, for example when placing switches in the same distance from door openings and the like. Then the board is kept in the spot for 3 minutes or till the plaster bed gets stiff enough. After 2 minutes the screws are screwed out from fixing holes J_3 injunction boxes 7 and the whole fixture is removed from the building surface. The precisely offset junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7_are ready for installation of data networks and coating the surface.

Example 6 - offset board with spacers for magnet and alignment pins

The fixture for installation of three round junction boxes next to surface and ceiling corner in one line with offset.

Three round electrical junction boxes are connected, with the help of locks, side by side in one axis to one set. The fixture contains flat panel 1 to fix junction box 7 and flat panels 11 for allowance. The fixture consists of a board of transparent glass with thickness of 7 mm. The board is fitted with two levels 3 perpendicular one to another two neighbouring sides, and both levels 3 are positioned in flat panel JJ . for allowance, and with horizontal mark 4, which is a groove at the contact side of the board and with length gauges 2 positioned on flat panel JJ . for allowance and on flat panel 1 to fix junction boxes 7. Length gauges 2 are perpendicular to mark 4. Length gauges 2 are carried out as grooves in the board, and the grooves are 4 mm deep, at least. The board is equipped with two flat panels JJ . for allowance in the horizontal axis, and their length is equal to the inner diameter of face hole 12 of one round junction box 7 ^ thus they extend the length of the board. Flat panels JJ . for allowance have a sunk magnet in the spot of horizontal mark 4 , and the sunk magnet distance from the edge of the last junction box 7 in the row is not more than half of the internal diameter of face hole 12 of round junction box 7. The board is equipped with two transparent spacers 9 fitted with marks 4 ^ with the sunk magnet and alignment pins. Spacers 9 have thickness of 9 mm which corresponds to the thickness of the planned coat of the surface. The board, thus flat panel 1 to fix junction boxes 7, is set-off because of using spacers 9. Spacers 9 are kept to the board because of the sunk magnets and it is not necessary to fix them in spot. Fitted pins provide for locking of spacer 9. The offset board is fitted in the spot of flat panel 1 to fix junction box 7 with two through holes 8 that fit to two fixing holes J_3 of junction boxes 7. The fixture also contains two-point dismountable fixing system 6 consisting of two wing-caps. The wing-caps are completed with two rubber washers 5 for fine tightening of the screws to the board. The screws pass through holes 8 in the board and they are screwed in fixing holes J_3 in junction boxes 7. Then the board is laid on the required spot next to the wall corner, a piece of flat panel 11 for allowance is broken-ff in the spot of length gauges 2 carried out as deep grooves, so that the board with fixed junction boxes 7 could be installed next to the corner. Then the board with fixed junction boxes 7 and the broken part of flat panel ϋ for allowance is slipped into a finely plastered building hole carried out next to the wall corner, and the whole board is padded in the spot of the sunk magnet and of corresponding holes with spacers 9 before fitting to the building surface. The fitted pins of spacers 9 are inserted into the corresponding holes in the board, or in flat panel ϋ for allowance, and spacers 9 are fixed to the board with the magnet. The board does not fit directly to the building surface and it facilitates to set junction box 7 with offset. The board with fixed junction boxes 7 is positioned using mark 4 to the centre of the building plastered bed which is marked with a levelling mark and the board is positioned using two levels 3 in the horizontal and vertical directions. Length gauge 2 is used for precise positioning of junction boxes 7, for example when placing switches in the same distance from door openings and the like. After positioning, the board is kept in the spot for 3 minutes or until the plaster bed gets stiff enough. After next 5 minutes, the screws are screwed out from fixing holes 13 . injunction boxes 7 and the whole fixture is removed from the building surface. The precisely offset junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7 are ready for installation of media and security and safety networks and coating the surface.

Example 7 - offset board with spacers with dovetail

The fixture for installation of one round junction box next to a wall corner with offset.

The fixture contains flat panelI to fix junction box 7 and flat panelsli for allowance. The fixture consists of a board of transparent glass with thickness of 8 mm. The board is fitted with two levels 3 perpendicular one to another in two neighbouring sides, and both levels 3 are positioned in flat panel ϋ for allowance, with horizontal mark 4 which is a painted mark at the contact side of the board and with length gauges 2 positioned on flat panel 1 to fix junction boxes 7, perpendicular to mark 4. Length gauges 2 are carried out as grooves in the board, and the grooves are 5 mm deep, at least. The board is equipped with two flat panels ϋ for allowance in the horizontal axis, and their length is equal to a half of the internal diameter of face hole 12 of one round junction box 7 . thus they extend the length of the board. Flat panels ϋ for allowance have fitted dovetail holes, and the distance of the fitted dovetail hole from the edge of the last junction box 7 in the set is the third of the internal diameter of a face hole 12 of the round junction box 7, at least. The fixture is equipped with two transparent spacers 9 with marks 4 and with the fitted dovetail piece - a trapezoidal pin, and the board is fitted with the fitted dovetail hole to slip the fitted dovetail piece in the spot of flat panels ϋ for allowance. Spacers 9 have thickness of 12 mm which corresponds to the thickness of the planned coat of the surface. The whole board is set-off because of using spacers 9, in other words both flat panel 1 to fix junction boxes 7 and flat panels ϋ for allowance are offset. Spacers 9 are kept to the board because of the fitting dovetail in spacers 9 and fitting dovetail holes in the board and thus it is not necessary to keep them in the spot. The offset board is equipped with two through holes 8, that fit to two fixing holes 13 of junction box 7. The fixture also contains two-point dismountable fixing system 6 consisting of two screws. The screws are completed with two washers 5 of teflon for fine tightening screws to the board. The screws are screwed through threaded through holes 8 in the board into fixing holes 13 . injunction box 7. Then the board is put on the required spot next to the wall corner, a piece of flat panel Π . for allowance is broken-off in the spot of length gauges 2 carried out as deep grooves in such a way so that it is possible to install the board with fixed junction box 7 next to the corner. Then dovetail pins of spacers 9 are slipped into fitting dovetail holes in the board. The board with fixed spacers 9 and fixed junction box 7 and the broken-off part of the flat panel H for allowance is slipped into a finely plastered building hole carried out next to the wall corner, and the board does not fit directly to the building surface and it facilitates to set junction box 7 with offset. The board with fixed junction box 7 is positioned using mark 4 to the centre of the building plastered bed which is marked with a levelling mark and the board is positioned using two levels 3 in the horizontal and vertical directions. Length gauge 2 positioned on flat panel li for allowance is used for precise positioning of the junction box 7, for example when placing switches in the same distance from door openings and the like. Then the board is kept in the spot for 2 minutes or till the plaster bed gets stiff enough. After next 2 minutes the screws are screwed out from fixing holes I in junction boxes 7 and the whole fixture is removed from the building surface. The precisely offset junction box 7 stays in the plaster bed and after several hours when plaster is fully stiff, junction box 7 is ready for installation of switches and plugs and coating the surface. Example 8 - offset board with C-collar spacers with single hole

The fixture for installation of one round electrical junction box with central mount into building surface.

The fixture contains flat panel I to fix junction box 7 and flat panels ϋ for allowance. The fixture consists of a board of transparent glass with thickness of 6 mm. The board is equipped with one through hole 8, centrally positioned in the board. The board has two flat panels ϋ for allowance in the horizontal axis, and their length is equal to half of the internal diameter of a face hole of round junction box 7, thus they extend the length of the board. The fixture also contains single- point dismountable fixing system 6 consisting of a screw with wing-cap. The screw is fitted with metal washer 5 and it passes through hole 8 in the board in the spot of flat panel I to fix junction box 7 and it is screwed into mounting central hole 13 . in junction box 7. Then C-collar shaped spacers 9 are slipped on the board in the spot of flat panels ϋ for allowance and the board with fixed junction box 7 is slipped into a finely plastered building hole carried out in the wall surface, and the board does not fit directly to the building surface and using of spacers 9 facilitates offset both of flat panel 1 to fix junction boxes and flat panels li for allowance. Because of using C- collar-spaced spacers 9, junction box 7 is set-off against the building surface. The board with affixed junction box 7 is set in the horizontal and vertical directions using the level laid at the spot and kept in this position for 2 minutes or till the plaster bed gets stiff enough. After next 5 minutes the screw is screwed out from fixing hole 13 . in junction box 7 and the whole fixture is removed from the building surface. The precisely set junction box 7 stays in the plaster bed and after several hours when plaster is fully stiff, junction box 7 is ready to install wiring.

Example 9 - grid

The fixture for installation of two round electrical junction boxes into a building surface.

Two round electrical junction boxes are connected, with the help of locks, side by side to one set. The fixture contains flat panel I to fix junction box 7 and flat panels ϋ for allowance. The fixture consists of a grid of transparent polycarbonate glass with thickness of 8 mm, and the grid consists of a frame, entries 10 and guiding partitions 1A The grid is fitted with three through holes 8 that have spacing equal to spacing of fixing holes 13 of junction boxes 7 in the spot of guiding partitions 14. The grid has two flat panels ϋ for allowance in the horizontal plane, and their length is equal to the internal diameter on the face side of round junction box 7, thus they extend the length of the grid. The fixture also contains three-point dismountable fixing system 6 consisting of two screws. The screws are fitted with washers 5 and they pass through holes 8 in guiding partitions 14 of the grid. During installation the screws are screwed in fixing holes 13 . injunction boxes 7. Then the fixture with fixed junction boxes 7 is slipped into a finely plastered building hole carried out in the wall surface, and the grid fits with all its contact face, thus flat panel 1 to fix junction boxes and flat panels JJ . for allowance, to the building surface. Current wiring going out from the building hole passes through junction boxes 7 and then through the mesh. The grid with fixed junction boxes 7 is set in the horizontal and vertical directions using level laid at the spot and kept in this position for 5 minutes or till the plaster bed gets stiff enough. After next 2 minutes the screws are screwed out from fixing holes 13 . injunction boxes 7 and the whole fixture is removed from the building surface. The precisely set junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7 are ready to install wiring.

Example 10 - board with entries for cabling

The fixture for installation of five round electrical junction boxes into floor.

Five round electrical junction boxes are connected, with the help of locks, side by side in one axis to one set. The fixture contains flat panel 1 to fix junction box 7 and flat panels JJ, for allowance. The fixture consists of a board of transparent polycarbonate glass with thickness of 10 mm. The board is equipped with mark 4 which is a groove at the contact side of the board and with length gauges 2 positioned on flat panel JJ, for allowance perpendicular to mark 4. Length gauges 2 are carried out as grooves in the contact surface of the board. The board is equipped with five through holes 8 that have spacing equal to spacing of fixing holes 13 . of junction boxes 7. The fixture has two flat panels JJ, for allowance in the horizontal axis, and their length is equal to the inner diameter of face hole 12 of round junction box 7, thus they extend the length of the board. The board also has two flat panels U for allowance in the vertical axis, and their thickness is equal to the inner diameter of face hole 12 of round junction box 7, thus they extend the width of the board. Round entries 10 with the centre equal to that of facing holes 12 of junction boxes 7 are in the spot of the panel I to fix junction box 7 in the board, and entries 10 in the board have diameter by 20 mm less than the internal diameter of face hole 12 of junction box 7 is. The fixture also contains five-point dismountable fixing system 6 consisting of five screws with wing-cap. The screws are fitted with plastic washers 5 and they pass through holes 8 in the board and during installation three screws, at least, are screwed in fixing holes 13 . in junction boxes 7. Then the fixture with fixed junction boxes 7 is slipped into a finely plastered building hole carried out in the floor, and the board fits in flat panels ϋ for allowance to the building surface. The board with fixed junction boxes 7 fitted to the levelling marks on both sides of the building hole using length gauges 2 and mark 4 and set into the final position and kept in this position for 2 minutes or till the plaster bed gets stiff enough. After next 10 minutes, the screws are screwed out from fixing holes 13 in junction boxes 7 and the whole fixture is removed from the building surface. The precisely set junction boxes 7 stay in the plaster bed and after several hours when plaster is fully stiff, junction boxes 7 are ready to install data, media and security and safety networks.

List of reference marks

1. flat panel to fix junction boxes 7

2. length gauge

3. level

4. mark

5. washer

6. dismountable fixing system

7. junction box

8. through hole of flat panel 1 to fix junction boxes 7

9. spacer

10. entry

1 1. flat panel for allowance

12. hole in face side of junction box 7 13. fixing hole of junction box 7

14. guiding partition

Industrial applicability

Building industry, installation of boxes for installation of wiring, networks, data, media and security and safety networks in flat planes of objects