GB2149471A

GB2149471A - An improved joint

Info

Publication number: GB2149471A
Application number: GB08329685A
Authority: GB
Inventors: Gerald Zeph Mizel
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-11-07
Filing date: 1983-11-07
Publication date: 1985-06-12
Also published as: GB2149471B; GB8329685D0

Abstract

The joint comprises two strip-like members (10.11) which each have a complementary edge (KK1) and these when the members are superposed are self supporting and allow the members to slide one upon the other. In one example the members (10.11) have aligned bolt holes that can accept a bolt (12) that co-operates with a nut (101) to prevent the members from sliding once they are adjusted. Each of the members, generally made of wood a plastics material or a suitable alloy, can readily be fixed e.g. by screws 13 respectively to superstructures S1 and S2. The engaging surfaces of the members may comprise knife-edges, V- grooves, curved or stepped surfaces. <IMAGE>

Description

SPECIFICATION Improved joint for fabricated structures This invention relates to an improved joint for the quick assembly of fabricated structures and is of special interest in the construction of prismatic structures especially right prismatic structures.

It is well understood that many constructions in industry and in the home are essentially prismatic structures made from wall board, wood planking and similar synthetic and or plastics sheet materials.

For example many structures in the home are made from wood strip planking and laminated board such as formica (RTM) surfaced block board. This is especially true of kitchen cupboards and working surfaces therein.

According to one aspect of the present invention there is provided an improved joint comprising two slidable complementary edge strip-like members that support each other when superposed, the joint being provided with securing means to prevent sliding, and both members being arranged to be fixed to superstructure.

According to another aspect of the present invention there is provided an improved joint comprising two slidable complementary edge strip like members that support each other when superposed one carrying at least one through bolt hole and the other carrying at least one through bolt hole and a nut cooperable with a bolt when passed through the aligned bolt holes of the one and the other members such that when the said complementary edges are juxtaposed the one with the bolt hole is fixed to a superstructure surface substantially normal to said through bolt hole and the other with the nut substantially parallel to said bolt hole.

The complementary edge strip-like members are generally substantially right rectangular prisms in the form of elongated strip only one edge being made into a knife edge but they may be any other form curved or stepped for example.

It greatly facilitates economy in the joint construction if the two members have a substantially identical cross-section but this is not essential.

The joint of the invention provides not only very quick assembly but it is self supporting prior to final fixture.

The invention will be more fully understood from the following description given by way of example only with reference to the several figures of the accompanying drawing in which: Figure lisa view in oblique perspective of two sliding complementary edge strip-like members of knife edge form side-by-side and cross sectioned; Figure 2 shows the members with their knife edges juxtaposed and the lower fixed to a superstructure surface; Figure 3 is an end view of the members of Figure 2 with a further superstructure surface fixed by the joint; Figure 4 is a schematic showing a prismatic structure using four of the improved joints; Figure 5A is a schematic showing various crosssectional forms of the knife edge joint for a right prismatic structure;; Figure 5B shows a similar joint for a prismatic structure; Figure 6 shows in schematic form various right prismatic constructions obtainable with the improved joint but these are only a very small portion of what can in fact be produced; and Figure 7 shows various forms of complementary joints.

Referring now to Figure 1 two knife edge strip members 10 and 11 are placed side-by-side.

Generally they will be made of wood or of a plastics material but they may be made of any suitable alloy.

The members 10 and 11 are substantially identical in their form but member 10 has a nut 101 incorporated in it and aligned with a through hole 102 substantially normal to the surface 5, a further hole (not shown) is indicated at 103 and this is for fixing member 10 to surface S by means of a screw. If member 10 is extended in the line XX1 then it will contain a plurality of nuts and through holes such as 102 aligned therewith, and a plurality of holes such as 103.

In contrast knife edge strip member 11 has a through hole 11, and a further hole 11, substantially normal to the hole 11 to In Figure 2 the two knife edge strip members 10 and 11 are placed with their knife edges juxtaposed (line Kit ). Member 10 is fixed by screw 104 to superstructure surface Si the through holes 102 and Ili being aligned to accept a bolt 12 that cooperates to lock 10 and 11 by means of nut 10,. Member 11 is fixed to any required surface by screw 13 and this is shown more clearly in Figure 3 where screw 13 is seen entered into superstructure S2.

In Figure 4 various end views of knife edge strip members are shown. Members A have a knife edge juxtaposition line KK, at substantially forty-five degrees of arc. Members B have a line KK1 at about sixty degrees of arc and members C have a knife edge with blunted edges C1C2 for ease of use.

In Figure 5A eight knife edge strip like members as shown in Figure 4A are deployed to form a right prismatic structure formed of four planks P1 P2P3P4 joined by joints shown generally J1J2J3J4 each of which is substantially as shown in Figure 2, the nuts 101 and bolts 12 being clearly indicated. The fixing wood screws for the joints are not shown but indicated by lines 104 and 112.

In Figure 5B a construction for a (non-right) prismatic joint is shown the parts are self explanatory no bolt is shown but nut 101 is clearly indicated also wood screw fixings 104 and 112 Superstructure S3 makes an angle a with superstructure S4.

Figures 6A and 6H are self explanatory the joint as in Figure 2 being indicated by the letters J1J2J3J4 etc etc.

Similarly Figure 7 is self explanatory showing four complementary joints. A knife edge, B double knife edge, C curved, and D stepped.

It is to be understood that locking of the joint may be effected through clips or any other satisfactory device. The joints can be of any suitable dimensions and can be miniaturized or maximized.

Claims

1.An improved joint comprising two slidable strip-like members having a pair of complementary edges in the length of the strip, said members supporting each other when said edges are juxtaposed and the members superposed, the joint being provided along its length with securing means to prevent sliding once the strip-like members are suitably adjusted, and both members being arranged to be fixed to superstructure.

2. An improved joint comprising two slidable strip-like members having a pair of complementary edges in the length of the strip said members supporting each other when said edges are juxtaposed and the members superposed one member carrying at least one through bolt hole and a nut cooperable with a bolt that when it is passed through the aligned bolt holes of the one and the other members and the said complementary edges are juxtaposed the one with the bolt hole may be fixed to a superstructure surface by means substantially normal to said through bolt hole and the other with the nut fixed by means substantially parallel to said bolt hole.

3. The improved joint as claimed in Claim 1 or Claim 2 wherein the two strip-like members are each substantially a right rectangular prism each complementary edge of which is a single knife edge.

4. The improved joint as claimed in Claim 1 or Claim 2 wherein the two strip-like members are each substantially a right rectangular prism each complementary edge of which is a double knife edge.

5. The improved joint as claimed in Claim 1 or Claim 2 wherein the two strip-like members are each substantially a right rectangular prism each complementary edge of which is curved.

6. The improved joint as claimed in Claim 1 or Claim 2 wherein the two strip-like members are each substantially a right rectangular prism each complementary edge of which is stepped.

7. The improved joint as claimed in any one of Claims 1 and 3 to 6 wherein the members are locked by means of clips.

8. The improved joint as claimed in any preceding claim wherein the members are made from wood, a suitable plastics material, or a suitable alloy.

9. A structure in which parts are held together by means of a joint as claimed in any preceding claim.

10. An improved joint constructed and arranged substantially as hereinbefore described and as shown in the several figures of the accompanying drawings.