FLOREK, Ryszard (Losie 11, Labowa, PL-33-336, PL)
| Claims 1. Bolt socket unit in a window frame, in particular of a roof window, containing a bolt socket, made in particular of plastic, the body of the bolt socket is sunk in a structural member of the window frame, and on the outside of this socket the body has at least one bolt recess accommodating the handle bolt in the closed window position, and there is a flange around the body, advantageously monolithic with the body, resting against the window frame surface, characterized in that the bolt socket (1 , 6) on the side sunk in the window frame is supported with a bracket (5, 8), advantageously made of metal, its one working face - the face by the bolt (56, 83) adjoins the wall (16, 66) of the bolt recess (13, 66) in the place where on the other side of this wall the handle bolt rests against it, and the opposite working face - the bearing surface (57,84) is resting against the window frame in the place more distant from the window sash than the face by the bolt, so the pressure force of the handle bolt and the reaction force of the window frame against the bracket bearing surface together cause a moment of force leading to a deeper seating of the handle bolt in the bolt recess (13, 62) of the bolt socket. 2. Bolt socket unit as claimed in claim 1 , characterized in that the bolt socket body (1 ) on the side sunk in the window frame has an internal recess (15) adjacent to the bolt recess (13) and separated from it with a wall (16), the bolt (42) of the closed window rests against this wall, whereas the bracket (5) mounted in the window frame has a foot (51 ) and an angle strut (52), which enters the internal recess of the bolt socket and is situated diagonally in the recess, so that the face by the bolt (56) constituting the end of the angle strut adjoins the wall (16) separating the bolt recess from the internal wall near the internal recess bottom. 3. Bolt socket unit as claimed in claim 1 , characterized in that the bolt socket body (6) on the side sunk in the window frame (7) has an internal recess (65) adjacent to the bolt recess (62) and separated from it with a wall (66), the bolt of the closed window rests against this wall, whereas the bracket (8) mounted in the window frame has a foot (81 ) and a boss (82), in particular perpendicular to the foot, which enters the internal recess (65) of the bolt socket, and its face by the bolt (83) distant from the foot (81 ) adjoins the wall (66) separating the bolt recess (62) from the internal wall (65) near the internal recess bottom. 4. Bolt socket unit as claimed in claim 1 or 2 or 3 characterized in that in a plastic window frame having structural members in the form of a section (2), in particular a multi-cell section, reinforced at least in a part of the window frame perimeter with a metal insert (22), in particular in the form of a U-section, the foot (51 ) of the bracket (5) is secured to a block (2), advantageously wooden, secured to the metal insert. 5. Bolt socket unit as claimed in claim 4, characterized in that the edge of the bracket (5) foot (51 ) opposite to the face by the bolt (54) is resting with its bearing surface (58) against the wall (28) of the section (2) of the window frame situated lengthwise, in particular parallel, to the principal plane of the window frame. 6. Bolt socket unit as claimed in claim 4 or 5, characterized in that the bracket (5) foot (51 ) is secured to the block (53) with screws (54) going through the wall (26) of the section (2) of the window frame, situated crosswise, in particular perpendicular, to the principal plane of the window frame. 7. Bolt socket unit as claimed in claim 4 or 5 or 6 characterized in that the bolt socket (1 ) under its flange (11 ) has clasp lock catches (12), securing the socket to the wall (25) of the section (2) of the window frame it is sunk in. 8. Bolt socket unit as claimed in claim 1 or 2 or 3 characterised in that the bracket (6) in a wooden window frame is situated in a pocket (71 ) milled in the window frame (7), and the foot (81 ) of the bracket (8) is fastened, advantageously with a screw (74), to the bottom of the pocket. 9. Bolt socket unit as claimed in claim 8, characterized in that the edge of the bracket (8) foot (81 ) opposite to the face by the bolt (83) is resting with its bearing surface (84) against the side face (72) of the pocket (71 ), situated lengthwise, in particular parallel, to the principal plane of the window frame. 10. BoIt socket unit as claimed in claim 9 characterized in that the foot (81 ) of the bracket (8) near its bearing surface (84) has a spur (85) placed in the groove (73), which is a part of the pocket (71 ) in the window frame (7), situated lengthwise, in particular parallel, to the principal plane of the window frame. 11. BoIt socket unit as claimed in claim 8 or 9 or 10, characterized in that the bolt socket (6) is secured to the bottom of the pocket (71 ) in the window frame (7), advantageously with a screw (74) going through a hole in the bracket foot (81 ). 12. Bolt socket unit as claimed in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 8 or 10 or 11 characterized in that the bolt socket (1 , 6) has an additional bolt recess (14, 63) in its body, accessible from the outside, accommodating the handle bolt in the window position slightly open for ventilation. 13. BoIt socket unit as claimed in claim 12 characterized in that it has two separate additional bolt recesses (14), for graduation of window opening. 14. BoIt socket unit as claimed in claim 12 characterized in that the additional bolt recess (63) is a two-entry recess, for graduation of window opening. 15. BoIt socket unit as claimed in claim 13 or 14 characterized in that the foot (51 ) of the bracket (5) has a hole (58), in which the additional bolt recess is partially sunk. |
This invention relates to a bolt socket unit, of a reinforced design and improved resistance to breaking in from the outside. The unit according to this invention is used mainly in roof windows, with plastic or wooden window frames.
Plastic bolt sockets used in particular in roof windows, which are sunk in the window frame and have a lock recess accessible from the outside, are known. The bolt of the handle mounted in the window sash fits in the bolt recess in the closed window position. These sockets have also an additional bolt recess - for the window position slightly open for ventilation. Known bolt sockets are mounted in wooden window frames with a single screw, and in plastic window frames - with latches.
The essence of the solution according to the invention is that the bolt socket at the side that is sunk in the window frame is supported by a bracket, and one working face of the bracket - the face by the bolt adjoins the bolt recess wall in the place where the window handle bolt leans against the opposite site of the wall, and the opposite working face - the bearing surface leans against the window frame in the place more distant to the window sash than the face by the bolt. Consequently, the window handle bolt pressure force and the window frame reaction force against the bearing surface of the bracket, together as a pair of forces, produce a moment of force causing that the bolt socket coincides with the handle bolt, so the handle bolt seats deeper in the bolt recess.
The bolt socket, made in particular of plastic, has the body sunk in a structural member of the window frame, and there is at least one bolt recess in the socket's body on the outer side of the socket, accommodating the handle bolt in the closed window position. There is an integral flange around the bolt socket body, resting against the window frame face. The bolt socket body has an internal recess on its side sunk in the window frame, adjacent to the bolt recess and separated from it with a wall, and the bolt of the closed window rests against this wall. A bracket mounted in the window frame, advantageously made of metal, has a foot and a member directly supporting the bolt socket. The first variety of the bracket is made of metal sheet, has a flat foot and a bent out angle strut, which enters the internal recess of the bolt socket and is situated diagonally in the recess. The end of the angle strut adjoins the wall separating the bolt recess from the internal recess near the bottom of the internal recess, that is in the place where on the opposite side of the wall the handle bolt adjoins.
The second variety of the bracket is formed in particular by casting, has the foot advantageously with a cylindrical base surface and has a boss, in particular perpendicular to the foot, which enters the internal recess of the bolt socket. The boss's face by the bolt, situated on its segment distant from the bracket foot, adjoins the ball socket wall that separates the bolt recess from the internal recess, near the internal recess bottom. However the recess segment situated closer to the bracket foot has no contact with the bolt socket wall.
In the first variant of the invention, applied in a plastic window frame with structural members in the form of a section, in particular a multi-cell section, reinforced on at least part of the window frame perimeter with a metal insert, the bracket foot is mounted to a block, which is secured to the insert. Advantageously in this variant a bracket made of metal sheet is used. It has a flat foot and bent out angle strut, entering the internal recess of the bolt socket diagonally. The angle strut is ended with the face by the bolt, which adjoins the bolt socket wall separating the bolt recess from the internal recess. The bolt socket has clasp lock catches under its flange, securing the socket to the wall of the section of the window frame the socket is sunk in. The metal insert reinforcing the window frame is advantageously a U-section, and the block the bracket base is mounted on is advantageously wooden. The edge of the bracket foot opposite to the face by the bolt rests, with its bearing surface, against the window frame section wall, situated lengthwise, in particular parallel to the principal plane of the window frame. The bracket foot is secured to the block with screws going through holes in the window frame section wall situated crosswise, in particular perpendicular, to the principal plane of the window frame. In a variety of this invention variant, the bracket foot adjoins the block directly with its flat face, and is secured to the block with screws, whereas the window frame section wall has a cut-out enabling the bracket foot to contact the block directly.
In the second variant of the invention, used in a wooden window frame, the bracket is situated in a pocket milled in the window frame, and the bracket foot is secured, advantageously with screws, to the bottom of the pocket. In this variant of the invention, advantageously a cast bracket, with a boss perpendicular to its foot is used. The surface of the foot base is cylindrical, therefore it matches the shape of the pocket in the window frame normally made with a mill rotating around the axis perpendicular to the principal plane of the window frame. The bracket foot edge opposite to the boss supporting the bolt socket and to the boss face by the bolt, rests with its bearing surface against the side surface of the pocket in the window frame, and this side surface is situated lengthwise, in particular parallel, to the principal plane of the window frame. Advantageously the bracket foot, near its bearing surface has a spur located in a groove, which is a part of the pocket in the window frame. The use of the spur extends the bearing surface area of the bracket foot. The groove for the spur is situated lengthwise to the principal plane of the window frame, in particular parallel to this plane. Advantageously the groove is made together with the pocket in the window frame, with a profile cutter or a milling gang.
The bolt socket resting with its circular flange against the window frame surface is secured, advantageously with a screw, to the bottom of the pocket in the window frame. In particular the screw goes through a through hole in the bracket foot, fastening both the bolt socket and the bracket to the window frame.
In both variants of the invention the bolt socket may also have an additional bolt recess in its body, accessible from the outside, accommodating the handle bolt when the window is slightly open for ventilation. In this case the socket internal recess with the bracket angle strut is situated between the main bolt recess accommodating the bolt, when the window is closed tightly, and the additional bolt recess. In embodiments the bolt socket may have two separate additional bolt recesses or a single two-entry bolt recess - in both cases for graduating slight opening of the window for ventilation. Due to a deeper sinking of the additional bolt recess in the window frame than in the main bolt recess, the bracket foot, in particular a flat foot of a metal sheet bracket with an angle strut, has a hole, in which the additional bolt recess is partially sunk.
The advantageous effect of this invention is an increase in strength of the bolt socket caused by the effect of automatic locking of the handle bolt with the bolt socket during attempts to open the window from the outside. As a result the resistance of the window to attempts of breaking into the room is improved.
The subject-matter of the invention, in the form of a bolt socket unit in a roof window is shown in examples in the drawing, where individual figures present: fig. 1 - the bolt socket unit in a plastic window frame and mating components of the window sash, in an axonometric view, with a cross-section to a window frame segment. fig. 2 - the bolt socket unit shown in fig. 1 , in a cross-section by a plane crosswise to the window frame segment crossing the axis of revolution of the handle. fig. 3 - the bolt socket unit in a wooden window frame (the window sash has been omitted in the drawing), in an axonometric view with exploded details, fig. 4 - the bolt socket unit as shown in fig. 3, in a cross-section with a plane crosswise to the window frame segment.
The subject matter of the invention is presented also in embodiment examples not shown in the drawing, but described by comparison with the examples presented in the drawings.
Example 1. The socket bolt unit for a plastic window frame has a bolt socket 1 , mounted in a crosswise segment of the window frame, being a multi-cell section 2, in addition both the section and the bolt socket are made of plastic. The section 2 comprising the window frame has an outside-frame cell 21 , containing a metal reinforcement insert 22, being a U-section, situated in the plastic section 2, on its entire length. The section 2 has also an inside-frame cell 23 and a middle cell 24, situated between the two above mentioned cells, and many smaller cells. Names of cells of the section 2 reflect their location in the window frame built of sections 2.
The bolt socket 1 has a body, sunk in the section 2 of the window frame, this body enters the inside-frame cell 23 and the middle cell 24 of the section, going through holes in the inside-frame wall 25, fitting the shape of the body, and through holes in the wall separating both cells. The bolt socket 1 is surrounded by a flange 11 , monolithic with its body, resting against the face of the inside- frame wall 25 of the window frame section 2. The bolt socket 1 on the perimeter of its body, under the flange 11 has spring catches 12, which entering the inside-frame cell 23 secure the bolt socket 1 to the inside-frame wall 25 of the section.
The roof window sash 3 (shown in fig.1 in the position shifted upwards from the window frame section 2, and in fig. 2 - in its actual position) is fitted with a handle 4, turning around the axle 41 , situated inside the sash window section 31. The handle bolt 42 enters the bolt recess 13 of the bolt socket while the window is being closed. As the socket works with the rotary bolt, the bearing surface of the bolt recess 13 has guiding segments placed diagonally and a top segment located in the centre, which facilitates pressing the sash seals down to the rebate faces in the window frame while the window is being closed. The bolt socket 1 has also two additional bolt recesses 14 in its body, the bolt recesses work with the handle bolt when the window is slightly open for ventilation. The possibility to put the handle bolt in one or the other additional bolt recess 14, enables one of the two degrees of window opening to be selected. The bolt socket 1 has also an internal recess 15 situated on the side of the socket sunk in the window frame section 2. The internal recess 15 is adjacent to the bolt recess 13, and they are separated with the wall 16 of the bolt socket, which is the bearing surface for the handle bolt 42.
In the section 2 of the window frame a metal bracket 5 is placed, made of metal sheet, comprising a flat foot 51 and an angle strut 52 bent out diagonally, which enters the internal recess 15 of the bolt socket. The bracket foot 51 adjoins with its base surface the internal wall 26 of the section 2, separating its middle cell 24 from its outside-frame cell 21 , this wall is perpendicular to the principal plane of the window frame. The bracket 5 is secured to a wooden block 53 placed in the reinforcing insert 22, in the outside-frame cell 21 of the section. The bracket 5 is secured to the block with screws 54, going through holes in the flat segments of the bracket foot 51 , situated on the both sides of the angle strut 52, and through the holes in the internal wall 26 of the section 2. The wooden block 53 is mounted in the section 2 with screws 55 going through the holes in the outside-frame wall 27 of the section and in the reinforcing insert 22.
The end of the angle strut 52 of the bracket 5 adjoins with its face by the bolt 56 the wall 16 of the bolt socket, and the handle bolt 42 rests against the other side of the wall. The edge of the base 51 of the bracket 5 which is opposite to the face by the bolt rests with its bearing surface 57 against the wall 28 of the section 2, situated parallel to the principal plane of the window frame. The bracket bearing surface 57 rests against the window frame section 2 in a place more distant from the window sash 3 than its face by the bolt 56. Consequently, at an attempt to open the window from the outside, the thrust of the bolt 42 and the reaction force of the window frame against the bearing surface 57 of the bracket cause a moment of force, which within the flexibility of the bracket 5 and its connections to the block 53 and directly to the section 2, lifts the bracket angle strut. Consequently, the thrust of the angle strut against the bottom of the internal recess 15 of the bolt socket moves the walls of the bolt (within their flexibility) towards the window sash 3, which leads to a deeper seating of the handle bolt 42 in the bolt recess 13 of the bolt socket.
In roof windows with a pivot sash, the window is opened by turning the sash 3 around the theoretical axis of revolution situated on the outer side of the window pane 32, therefore to enable a collision-free movement of the sash, the internal wall 25 of the section 2 is inclined at a part of its width, on the outer side of the window. There is an identical inclination in the bolt socket 1 and its flange 11 , and the more the additional bolt recesses 14 are distant from the bolt recess 13, the more they sink in the window frame. In this connection the bracket 5 in its base 51 has a hole 58 accommodating the additional bolt recess 14 situated the closest to the outer side of the window.
Example 2. The bolt socket unit in a wooden window frame has a plastic bolt socket 6, its body is sunk in the roof window frame 7, in a pocket 71 with arched bottom surface milled for this bolt. There is an integral flange 61 around the bolt socket 6 body, resting against the window frame face 7. There is a bolt recess 62 in the bolt socket body, at its side accessible from the outside, the bolt recess accommodates the bolt of the handle mounted in the window sash in the closed position of the window.
The socket bolt according to this embodiment example is intended (as the first embodiment socket) to work with the handle rotary bolt, therefore the bearing surface of the bolt recess has diagonally placed guiding segments and a top segment located in the centre, which enables the sash seals to be pressed down to the rebate faces in the window frame while closing the window. The bolt socket 6 has also the additional bolt recess 63 in its body, this is a two- entry recess, separated with the barrier 64. The recess works with the handle bolt in window positions slightly open for ventilation, and the bolt subject to the user needs is located either on the one or the other side of the barrier 64, thus selecting the degree of the window opening.
The bolt socket 6 has an internal recess 65, situated on the socket side sunk in the window frame. The internal recess 65 is adjacent to the bolt recess 62, they are separated with the bolt socket wall 66, constituting a bearing surface for the handle bolt. A cast metal bracket 8 is placed in the pocket 71 milled in the window frame 7 for the bolt socket 6. The bracket has a foot 81 , its base surface, adjoining the bottom 5 of the pocket 71 constitutes a cylindrical surface matching with its shape the pocket bottom surface. The bracket 8 has also a boss 82, perpendicular to the feet 81 , which enters the internal recess 65 of the bolt socket.
The boss 82 face 83 by the bolt is situated on its segment remote from the bracket foot 81 , it adjoins the ball socket wall 66 separating the bolt recess 62 from the internal recess 65, near the internal recess bottom. However the segment of the boss 82 situated closer to the foot 81 of the bracket has no contact with the wall 66 of the bolt socket, as it does not go so far into the pocket in the window frame. The boss 82 is narrower than the whole bracket 8, so it adjoins the wall 66 of the bolt socket on its top segment. The edge of the bracket foot 81 opposite to the boss 82 and its face by the bolt, with its bearing surface 84 rests against the side face 72 of the pocket 71 in the window frame, this side face is parallel to the principal plane of the window frame. The edge of the bracket foot 81 is fitted with a spur 85, extending the bearing surface 84 of this foot, placed in the groove 73, being a part of the pocket 71 in the window frame. The bolt socket 6 and the bracket 8 are secured to the window frame 7 with a common screw 74 going through holes in the bolt socket body and in the bracket foot, and screwed in the pocket 71 bottom.
The bracket bearing surface 84 rests against the window frame in a place more remote from the window sash than the face by the bolt 83. As a result, at an attempt to open the window from the outside, the thrust of the bolt and the reaction force of the window frame against the bearing surface 84 of the bracket cause a moment of force, which within the flexibility of the bracket and the flexibility of its connections to the wooden window frame, lifts the bracket boss 82. Consequently, the thrust of the boss 82 against the internal recess 66 of the bolt socket shifts the socket walls (within their flexibility) towards the window sash, which leads to a deeper seating of the handle bolt in the bolt recess of the bolt socket.
Example 3. The bolt socket unit for a plastic window frame has a similar design as in the first embodiment example. The difference consists in that a hole is made in the internal wall of the section, separating the middle recess from the outside-frame recess, and the bracket with the angle strut is let in the hole. As a result the bracket rests directly on the wooden block, to which it is secured. As the bracket with the angle strut is placed more fare away from the sash as compared to the first embodiment example, the bracket has no hole for the additional bolt recess. Example 4. The bolt socket unit for a wooden window frame has a similar design as in the second embodiment example. The pocket in the window frame according to the fourth embodiment example has a flat face (not an arched one), therefore the base surface in the bracket foot is also flat. The spur in the bracket foot is rectilinear, therefore the groove for the spur is also rectilinear, and is situated in the pocket for the bolt socket made in the window frame.