GB2154260A

GB2154260A - Wall tie device

Info

Publication number: GB2154260A
Application number: GB08406800A
Authority: GB
Inventors: Donald Furr
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-03-15
Filing date: 1984-03-15
Publication date: 1985-09-04
Also published as: GB2154258B; GB2154258A; GB8406800D0; DE3567926D1; GB8506725D0; EP0159804A1; GB2154260B; ATE40435T1; EP0159804B1

Abstract

A tying device comprises a bracket (1) fixed to an existing wall and one or more ties (20), which are to be interposed between courses of the new wall, engageable in slots (9) in the bracket, the slots allowing each tie once engaged to be slid down onto the top of the most recent course.

Description

1 GB 2 154 260A 1

SPECIFICATION

Wall tie device The present invention relates to a wall tie device comprising a wall bracket and connecting tie for the purpose of tying a brick or block structure to an existing structure.

In the past, the construction of a partition- ing wall or new external wall necessitated interleaving of the new bricks with the old to establish a solid structure. However, this was a time consuming and skilled operation where old bricks had to be gouged out so that the new bricks could be interleaved between them. To simplify this process, interengaging brackets and ties have been proposed which firmly tie the new structure to the existing one without the use of interleaving brickwork. The present invention relates to an improved form of tie device comprising a wall bracket and tie.

According to the present invention there is provided a tie device for tying a brick or block structure to an existing structure comprising a bracket having a back plate with means for securing it to the existing structure, and at least one tie to be interposed between courses of new bricks or blocks and having a pair of limbs, the back plate of the bracket having at least one socket in which free ends of the limbs of the tie are engageable by pushing the tie perpendicularly or approximately perpendicularly towards the back plate of the bracket to link the tie with the bracket, the limbs of the tie, once engaged in said socket being slidable lengthwise of the bracket, the or each socket being constituted by at least one aperture in the back plate.

The invention further provides a bracket for use with a wall tie having a pair of resilient limbs, for tying a brick or block structure to an existing structure, the bracket having a back plate with means for securing the bracket to the existing structure and the back plate having at least one socket for receiving the free ends of the resilient limbs of the tie, the socket being adapted to receive the limbs of the tie when the tie is pushed perpendicu- larly or approximately perpendicularly towards the back plate to link the tie with the bracket.

The invention can thus avoid the problem of having to manufacture a range of brick sizedependent brackets by p ermitting the tie to slide lengthwise of the bracket to accommodate different brick sizes. Since the tie can be engaged with the bracket by pushing it perpendicularly towards the back plate of the bracket, there is no need for either end of the bracket to be accessible (as in certain prior tie devices) in order to be able to insert the tie.

Suitably at least one such aperture has a portion extending laterally of the axis of the back plate for receiving the free end of the tie limb and a portion extending longitudinally of the back plate for allowing the tie to slide longitudinally of the back plate. In one construction each socket may comprise a pair of apertures symmetrically disposed about the longitudinal centre line of the back plate. Alternatively each socket may comprise an aperture having portions adapted to enable both free ends of the tie to be inserted therein. These two sorts of socket could if desired be used in the same embodiment.

Suitably each socket is generally symmetrical about the longitudinal axis of the back plate.

The means for securing the bracket to the wall may comprise a series of fixing holes disposed along a line extending lengthwise of the bracket. Preferably the apertures of each pair of apertures are disposed to opposite sides of this row of fixing holes. Also the or each aperture may have side edges shaped to provide one or more longitudinally spaced detent positions at which the tie will be restrained from further sliding movement.

By making the various features of the brack- ets symmetrical about the longitudinal centre of the bracket, the bracket does not require to be installed one particular way up.

The invention will be further described by way of example with reference to the accom- panying drawings in which:- Figure 1 shows a bracket for use in an embodiment of the present invention; Figure 2 shows one form of tie for use with the bracket of Fig. 1; and Figure 3 shows an embodiment of the tie device in use.

The bracket shown in Figs. 1 and 3 is stamped and folded out of sheet metal and comprises a back plate 1 having a surface rear which contacts the new brickwork and a reverse surface 3 in contact with the existing structure. The bracket may be suitably coated, or be of a suitable material, to be highly resistant to corrosion.

The bracket is provided with two side flanges 4 formed by folding the material of the bracket at right angles to the back plate 1, these flanges being provided with a row of keying holes 5 for mortar or plaster. Disposed along the longitudinal centre line of the back plate is a series of fixing holes 8 of rounded oblong or oval shape (to provide a degree of adjustability) and disposed to each side of this row of holes are a row of sockets each formed of a pair of apertures 9 which are arranged to opposite sides of the centre line of the back plate. Each aperture 9 is in the form of a [ and comprises an elongate centre portion 13 and, at each end of this centre portion, a recess 14 which allows the entry of feet 12 of a tie 10 (to be described below). As shown the recesses 14 extend outwardly from the centre portion 15 but they need not in other constructions.

The bracket is provided with a number of 2 GB 2 154 260A 2 ---feet-7 which are provided to maintain the back plate 1 in parallel spaced relation to the existing wall so as to provide space for the ---feet-12 of the tie.

Referring now to Fig. 2, the tie 10 is shown 70 to be generally of -Ushaped and is made of metal wire or rod material and has two side by side resilient limbs 11 having at their free ends, outwardly directed---feet-12. (They might equally well be inturned with the re cesses 14 being similarly inturned to corre spond).

When a new wall is to be built and tied to an existing structure, the one or more brack ets such as one in Fig. 1 are fixed to the old wall along the vertical line from which the ture.

new wall will extend. There may be a continu- 4. A tie device according to claim 3 ous or intermittent arrangement of these wherein the or each flange is provided with brackets along this line. Alternatively one conkeying holes for plaster or mortar.

5. A tie device according to any one of claims 1, 2, 3 and 4 wherein the means for securing the bracket to the existing structure comprises a number of fixing holes arranged in a row longitudinally of the bracket.

6. A tie device according to any one of the preceding claims wherein at least one widened portion of the or each aperture pro vides a detent for the positioning of the tie lengthwise of the bracket.

7. A tie device according to any one of the preceding claims wherein the or each aperture is substantially symmetrical about its longitudinal centre.

8. A tie device according to any one of the preceding claims wherein said bracket comprises protrusions for maintaining the portion thereof in which the or each aperture is/are formed in spaced relation to the existing structure to accommodate the free ends of the tie limbs.

9. A tie device according to claim 8 wherein the protrusions from the bracket are arch-shaped.

10. A tie device according to claim 9 wherein the arch shaped protrusions are formed by stamping or pressing of the brackets.

11. A device according to any one of the preceding claims wherein at least one socket comprises a pair of apertures symmetrically disposed about the longitudinal centre line of the back plate.

12. A device according to any one of claims 1 to 11 wherein at least one socket is formed by an aperture having portions adapted to enable both free ends of the tie to be inserted therein.

13. A device according to any one of the preceding claims wherein at least one such aperture has a portion extending laterally of the axis of the back plate for receiving the free ends of the tie limb and a portion extending longitudinally of the back plate for allowing the tie to slide longitudinally of the back plate.

14. A tie device constructed and arranged limbs of the tie are engageable by pushing the tie perpendicularly or approximately perpendicularly towards the back plate of the bracket to link the tie with the bracket, the limbs of the tie, once engaged in said socket being slidable lengthwise of the bracket, the or each socket being constituted by at least one aperture in the back plate.

2. A tie device according to claim 1 wherein the tie has limbs movable resiliently towards one another.

3. A tie device according to claim 1 or 2 wherein the bracket has along one or both longitudinal edges of the back plate a flange to overlie a brick or block of the new struc- tinuous bracket may be used.

The bracket may be fixed to the existing structure by any suitable means such as nails, screws or bolts so as to fix the bracket 1 firmly to the wall. Every so often a tie must be fixed to the bracket and be placed on top of the top course of bricks so far laid so that in the laying of the next course of bricks the tie is firmly interposed between them and strongly holds these new bricks to the bracket. This is done by squeezing the legs 11 of the tie together and inserting them in the upper recesses 13 by pushing the tie perpendicularly, or at least approximately perpendicularly to the back plate 1. Once the feet 12 of the tie are inserted in the apertures 9, the legs of the tie can be released so that they spring outwards so as to engage with the laterally outer edges of the apertures and the tie can then be slid downwardly until it rests on the uppermost course of bricks This lengthwise sliding of the tie, of course, makes it possible to place it at whichever position is necessary to interpose it between two courses of new bricks.

Alternatively, each socket into which the feet 12 of a tie 10 is slotted can be formed of a single aperture in the shape of an -I- with the upright of the -I- located along the centreline fo the back plate; the upper and lower transverse limbs allow sufficient space for outwardly directed tie feet to be inserted. Further squeezing of the tie limbs close together will allow the tie to slide along the length of the longitudinal limb to the required position.

Claims

1. A tie device for tying a brick or block structure to an existing structure comprising a bracket having a back plate with means for securing it to the existing structure, and at least one tie to be interposed between courses of new bricks or blocks and having a pair of limbs, the back plate of the bracket having at least one socket in which free ends of the 3 GB 2 154 260A 3 substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.

15. A bracket for use with a wall tie having a pair of resilient limbs, for tying a brick or block structure to an existing structure, the bracket having a back plate with means for securing the bracket to the existing structure and the back plate having at least one socket for receiving the free ends of the resilient limbs of the tie, the socket being adapted to receive the limbs of the tie when the tie is pushed perpendicularly or approximately perpendicularly towards the back plate to link the tie with the bracket.

Printed in the United Kingdom for Her Majesty's Stationery Office, Dd 8818935. 1985, 4235. Published at The Patent Office, 25 Southampton Buildings, London, WC2A l AY, from which copies may be obtained.