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Patent Searching and Data


Title:
SPACE CLOSING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2006/111733
Kind Code:
A1
Abstract:
Apparatus (26) for closing a space (12) between two precast concrete floor members (10). The apparatus (26) comprising a planar closure part (28) locatable over the end of the space (12) and two resilient planar contact members (32) which extend from the part (28) at an inclination relative thereto and relative to each other. The contact members (32) can be urged towards each other to locate in the space (12), and will then resiliently spring outwardly to engage against the floor members (10) to retain the apparatus (26) in position.

Inventors:
MASSEY CHRISTOPHER JON (GB)
Application Number:
PCT/GB2006/001412
Publication Date:
October 26, 2006
Filing Date:
April 19, 2006
Export Citation:
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Assignee:
MASSEY CHRISTOPHER JON (GB)
International Classes:
E04G11/36; E04B5/32
Foreign References:
GB2284845A1995-06-21
US3226893A1966-01-04
DE10118331A12002-10-17
BE1012476A32000-11-07
Attorney, Agent or Firm:
Sales, Robert (48 Friar Gate, Derby DE1 1GY, GB)
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Claims:
CLAIMS
1. Apparatus for closing the end of a space between two structural 5 members, the apparatus including a closure part locatable across the end of the space to close same, and an engagement part extendable from the closure part and locatable in the space so as to engage with the structural members to retain the apparatus in position.
2. I O.
3. Apparatus according to claim 1 , characterised in that one or more extensions are provided selectively mountable on the engagement part for use with different depth spaces.
4. Apparatus according to claim 2, characterised in that formations are 15 provided on the extensions and/or the engagement parts to permit selective mounting together thereof.
5. Apparatus according to claim 1, characterised in that the engagement part is resilient such that it can be moved and/or deformed to locate in the 0 space, and when located in the space the engagement part resiliently engages against the structural members to retain the apparatus in position.
6. Apparatus according to claim 4, characterised in that the engagement part comprises a pair of contact members inclined relative to each other, 25 which contact members can be moved towards each other to locate in the space, and when in the space the contact members are resiliently urged away from each other to engage with the structural members.
7. Apparatus according to claim 5, characterised in that the contact 30 members are inclined relative to the planar member.
8. Apparatus according to claims 5 or 6, characterised in that the contact members are substantially planar.
9. Apparatus according to any of claims 5 to 7, characterised in that the contact members vary in size along their length, so as to accommodate variations in the width of the space.
10. Apparatus according to claim 8, characterised in that the contact members are of reduced size to locate in the neck of a space, and of greater size to locate in the main body of the space.
11. Apparatus according to any of the preceding claims, characterised in that the closure part includes a substantially planar member.
12. Apparatus according to claim 10 when dependent on any of claims 5 to 9, characterised in that the contact members are joined to the planar member along a substantially common line.
13. Apparatus according to claims 10 or 11, characterised in that one or more extensions is provided selectively mountable on the planar member for use with different depth spaces.
14. Apparatus according to claim 12, characterised in that formations are provided on the extensions and/or the planar member to permit selective mounting together thereof.
15. Apparatus according to any of the preceding claims, characterised in that the apparatus is formed of a resilient plastics material.
16. Apparatus according to any of the preceding claims, characterised in that the closure part and engagement part are integrally formed.
17. Apparatus for closing an end of the space between two adjacent concrete floor members, characterised in that the apparatus is according to any of the preceding claims.
Description:
Space Closing Apparatus

This invention relates to space closing apparatus, and particularly apparatus for closing the end of the space between concrete floor beams.

When a precast concrete floor is installed, a joint is formed between adjacent precast units or beams. This joint should be completely filled with concrete to make the floor a structural unit. However, problems can be encountered with concrete falling from the end of the space between units, and potentially into a wall cavity. In view of this it has often been the practice not to fill the space with concrete adjacent either end thereof. An alternative approach is to provide for instance wooden shuttering over the end of the space, which shuttering would generally be subsequently removed. Such a process is however relatively difficult and time consuming, and can often lead to shuttering and other items falling into the wall cavity.

According to the present invention there is provided apparatus for closing the end of a space between two structural members, the apparatus including a closure part locatable across the end of the space to close same, and an engagement part extendable from the closure part and locatable in the space so as to engage with the structural members to retain the apparatus in position.

The engagement part may be resilient such that it can be moved and/or deformed to locate in the space, and when located in the space the engagement part resiliently engages against the structural members to retain the apparatus in position.

The engagement part may comprise a pair of contact members inclined relative to each other, which contact members can be moved towards each

other to locate in the space, and when in the space the contact members are resiliently urged away from each other to engage with the structural members.

The closure part may include a substantially planar member, and the contact members may be inclined relative to the planar member. The contact members may be substantially planar and may be joined to the planar member along a substantially common line.

The contact members may vary in size along their length, so as to accommodate variations in the width of the space. The contact members may be of reduced size to locate in the neck of a space, and of greater size to locate in the main body of the space. One or more extensions may be provided selectively mountable on the planar member for use with different depth spaces. Formations may be provided on the extensions and/or the planar member to permit selective mounting together thereof.

One or more extensions may be provided selectively mountable on the engagement part for use with different depth spaces. Formations may be provided on the extensions and/or the engagement parts to permit selective mounting together thereof.

The apparatus may be formed of a resilient plastics material. The closure part and engagement part may be integrally formed.

The invention also provides apparatus for closing an end of the space between two adjacent concrete floor members, the apparatus being according to any of the preceding seven paragraphs.

An embodiment of the present invention will now be described by way of example only and with reference to the accompanying drawings, in which:-

Fig. 1 is a diagrammatic cross sectional end view through a joint between two concrete floor members;

Fig. 2 is a diagrammatic cross sectional side view through a joint between two concrete floor members;

Fig. 3 is a similar view to Fig. 2 but using first apparatus according to the invention;

Fig. 4 is a diagrammatic end view of the apparatus according to Fig. 3;

Fig. 5 is a diagrammatic plan view of the apparatus of Fig.4;

Fig. 6 is a diagrammatic side view of the apparatus of Fig. 3;

Fig. 7 is a diagrammatic sectional side view along the line A-A of Fig. 5;

Fig. 8 is a similar view to Fig. 5 of a second apparatus according to the invention; and

Fig. 9 is a diagrammatic opposite end view of the apparatus of Fig. 8.

Fig. 1 shows a typical joint between two precast concrete floor members 10. Whilst the members 10 are adjacent each other, a space 12 is provided therebetween, with only the lower edges of the members 10 abutting. The space 12 widens above the lower edges to a main section 14 and then narrows to a narrower neck 16.

Fig. 2 is a sectional side view through the joint of Fig. 1 in a conventional arrangement. Here the floor members 10 are supported on an end brickwork wall 18. Outside of the wall 18 a further wall 20 is provided with a cavity 22 provided between the walls 18, 20. As can be seen in this

conventional arrangement, the space 12 is filled with concrete 24, but not right up to the end of the members 10, to prevent the possibility of concrete falling into the cavity 22.

In contrast Fig. 3 shows an arrangement with apparatus 26 according to the invention closing the space 12 between the floor members 10 at the end thereof above the walh-18, such that concrete 24 is provided right up to the end of the floor members 10. The apparatus 26 will now be described in more detail will reference to Figs. 4 - 7.

The apparatus 26 is integrally formed of a resilient plastics material and includes a planar closure part 28. An engagement part 30 extends from the closure part 28 about a centre line thereof. The engagement part 30 comprises two profiled planar contact members 32 at right angles to each other, and inclined at 45° to the closure part 28. The contact members 32 each have an integral web 34 connecting to the closure part 28. The contact members 32 extend above, as shown in the drawings, the web 34 and outwardly for a fixed distance to provide an upper part 36. The upper part 36 extends for around two thirds of the length of the contact members 32 and then diverges into a wider lower part 38.

Three ribs 40 are provided on the opposite side of the closure part 28 to the engagement part 30, and the ribs 40 permit mounting of an extension to the closure part 28 for use in a deeper space. Fig. 6 illustrates an extension 42 extending from the lower end of the closure part 28. In this instance mounting of the extension 42 is not provided by the ribs 40, but rather is provided by a formation 44 in the top of the extension 42. Ribs may also be provided in a lower part of the engagement part 30 to permit extensions to be mounted thereto.

In use to close off the end of a space 12 as shown in Fig. 1 , the contact members 32 are pushed towards each other and can therefore be slid into the

space 12 from the end or perhaps from above. Once in the space 12 the planar members 32 are released and will be resiliently urged outwards, and will engage with the floor members 10 to retain the apparatus 26 closing the end of the space 12. The upper part 36 will engage in the neck 16, whilst the lower part 38 will engage in the main section 14 of the space 12. The space 12 can then be filled with concrete right up to the apparatus 26, therefore providing a strong structural joint. It is intended that the apparatus 26 will be retained in the joint.

Figs. 8 and 9 show a second apparatus 126 again integrally formed of a resilient plastics material. The apparatus 126 is similar to the apparatus 26 but differently dimensioned as will be indicated. A similar closure part 128 is provided with an engagement part 130 extending therefrom with two profiled planar contact members 132. The contact members 32 are inclined at a greater angle from each other relative to the members 32, and in a relaxed position are inclined at an angle of approximately 120° relative to each other. In view of their inclination and length, in a relaxed position the contact members 132 extend laterally beyond the closure part 128.

The engagement parts 130 connect to the closure part 128 substantially along their whole length. Again a wider lower part 138 is provided, but this extends over a lesser portion of the length of the engagement parts 130 than does the equivalent part 38.

There is thus provided apparatus which is of relatively simple construction and can for instance be inexpensively integrally formed from a resilient plastics material. The apparatus can readily be located in position and by virtue of the resilience of the contact members will automatically remain in a required location. The apparatus therefore permits a joint to be filled right up to its end whilst the apparatus can be easily and quickly installed in the joint.

Various other modifications may be made without departing from the scope of the invention. For instance the apparatus may be made from a different material and may have a different shape. Different sizes of the apparatus may be made for use with different thicknesses of floor members. The contact members may be provided at a different inclination.

Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.