GB2372514A

GB2372514A - Joist hanger

Info

Publication number: GB2372514A
Application number: GB0201204A
Authority: GB
Inventors: Garry Morgan
Original assignee: WARD BUILDING COMPONENTS Ltd
Current assignee: WARD BUILDING COMPONENTS Ltd
Priority date: 2001-01-18
Filing date: 2002-01-18
Publication date: 2002-08-28
Anticipated expiration: 2022-01-18
Also published as: WO2002057557A1; EP1352133A1; IE20020028A1; GB0201204D0; GB2372514B

Abstract

The joist hanger, particularly for use with metal joists, comprises a top flange 6 for hanging the hanger, a backplate 8 depending down from the top flange and a side flange 9 projecting outwardly from the backplate, with the hanger having adjustment means to facilitate adjustment of a joist relative to the hanger. The adjustment means may facilitate generally longitudinal movement of a joist relative to the hanger and may comprise a longitudinally extending slot 15 in the side for receiving a fixing to adjustably mount a joist to the hanger. The hanger may have two or more slots. Alternatively, the adjustment means may facilitate generally vertical movement of a joist relative to the hanger. The side flange may be spaced downwards from the top flange and the top flange mat comprise a hook for engagement behind a support such as a wall and include a rear lip 7 depending from the top flange. The top flange may comprise a forwardly extending top flange extension. The hanger may be formed from a single piece of metal or comprise separate components attached together. Also claimed is an assembly or kit comprising a metal joist and at least one hanger where the hanger is adjustably mounted to the joist.

Description

23725 1 4

"A Molt ANGER" 5 The mention relates to a joist hanger for supporting a floor or roof joist.

Conventional joist hangers for supporting amber joists generally comprise an upper horizontal part which rests on top of a load beating wall and a Eroding jolt red pompon to wow a ted 30 t is atoned. Such hedges fit flush 10 to the brickwork of me wall and generally allow s-coot tolerant on We Overallle h of amber joists.

Far improved s uc al strength over a given cross section it is desirable to provide a joist olrolled or fabricated metal construction. However, c:onvent ona1 }S hanger systems axe generally not suitable for such metal joists because they are not g==ally suitable for connection to the web of steelioists Steel joists are not generally as stable as timber joists and are ete re more likely to twist if fixed d rou h a bottom Bange.

20 There is therefore a need for a joist hanger which is p culatly suitable for supporting metal joists.

Statements of Ivy

75 According to the invendon dare is prodded a joist hanger composing a top Range for hanging the hanger, a baseplate depending from Me top Bange and side flange proje g outwardly Mom the backplate, We hanger adjustment means to facilitate adjustment of a joist relative to die hanger.

-2 In a palticularb preferred embodiment of the invention Me adjushnent means facilitates generany longit al adjustment of assist relative to We hanger.

Preferably the adjustment means comprises a slot, and preferably at least two 5 laterally s}'aced-apart slots in Me side range for receiving a fi g to adjustably mount a Joist to tile hanger. The slot: extends substantially longitudinally to facility lon tudirml adjustment Altematively and preferably additionally Me adjustment means facilitates 10 generally vertical adjustment of a joist relative to the hanger.

In one embodiment the side flange is spaced downwardly Font the top flange to facilitate vertical adiustTna t The postman of Me fixing holes in either the side flange or the joist In be varied to achieve vertical adjushnent.

Probably the top flange comprises a hook for engagement behind a support such as a wall. The hook may comprise a rear lip depending from Me top Range.

In one embodiment lye top flange comprises a forwardly extending top flange 20 o Preferably We hanger is conned from a single piece of metal. Alt na rely We hanger com es at least two separate components attached together.

25 The inventors also provides an assembly or kit compress a joist and at least one hanger of me invention. The hater is preferably adjustably mounted die joist.

- 3 Brtef Desmotion of the Drawings The invention will be more clearly understood fiom die follow description

S Hereof given by way of example only And reference to me accompanying drawing in which: Fig. 1 is a perspective Hew of a joist hanger according to the invention; 10 Fin 2 is a perspective view of the hanger, in use; Fig. 3 is an ele ranonal new of me hanger, in use; Fit 4 is a view Ming formation of the hanger Rom a mead 15 sheet.

Fig. 5 is a pers ve view of another joist hanger; Fig. 6 is a p specd re view of the hangs of Fig. 5, in use; Fin 7 is an eleva doDal view of me hanger of Fig. 5, m use; Fig. is a view illusUadug Me fonnabon of We hanger of Fig. 5 from a metal sheet.

Pig. 9 is a view of a jO t Wit Aged spat between opposed wads; Fig 10 is a v of another joist with hangers spanning between opposed walls;

4. Fig. 11 is a perspective view of a firmer joist hanger; Fig. 12 Is a perspective view of Me hanger of Fig. 11, m use, 5 Fig. 13 is anelevabonal ewof the hanger of Fig. 11, in use; and Fig. 14 is a view 01us atmg the formation of die hanger of Fig. 11 tiom a metal sheet.

10 Defiled Description

Refiring to the dray there is illustrated a joist hanger 1 according to the ravennon for noun1ing a joy esp y a steel joist such as a channel member 4 available under the may Mulddhannel Dom Ward Budding Components 15 Lknited to a load bearing walls or support The hanger 1 yes a P:'p Range 6 permeating m a downwardly egg 1 7. 1h use, as will be pearly apparent from Figs. 2 and the Lip 7 forms a hook which engages behind a course of Me wall 3. A baseplate 8 depends from 20 the top flange and a side Wage g projects outwardly Coin the baseplate 8. The hanger 1 is connected to Me web ofthe joist 4.

Adjus anent means for adjustable mounting We joist 4 to the hanger 1 m this case codes a pair of s paced-apart slow 15 in the side flange 9. The slots 15 25 emend genially loUgitud l, to Agitate loll adjust of me joy 4 reladve to Me hanger 1.

It wm be noted that the side flange 9 is spaced downwardly from Me top flange by a distance d. This f itates vertical ad ust nent of Me Joist 4 relative to the 30 hanger}, if required. In most cam, especially for BoorJoises it is preferable Cat

-s - the upper face of the joist is flush mth the upper face of He top flange.

However, Por some applications the joist 4 may be ver caDy offset Tom the hanger} so chat a Boor finish can sit Bush on bode the joist and the load Wring wall. The position of the Axing holes in either He side flange or the joist In be 5 varied to accommodate Yeruca1 adjustment The hanger may be m u&letured from one piece of steel, cut and bent to die required shape, as illustrated in Fig. 4 and then welded or by any other suitable connecdon such as clenching, slots and tabs.

The hanger may al ma avely be manufactured from two pieces of steel, bent to the requnred shapes and Hen welded eoge er or attached by any over suitable connection, such as bled slots and tabs. Further, He hanger could be man calred using Bat plate and angle material Hen welded together or 15 attached by any other suitable connection, such as trenching, slots and tabs.

Typically the hanger 1 is manufacn ed from either black or gal ranmed steel typically either 3mm or An thickness. It may be acceptable to omit the Lip 7 where He connection Hooks' over the bri wo The fir is connected to the web of die Multichannel joist 4 use bold 5, self tad screws or rivets. The slotted holes 15 provide adjust of typically mm at each connection.

25 1h die invendon the load is not earned through the weaker bottom Bade of He joist whim can cause twisting of a mend joist. Rather, the joist is Connected through Me web substantially Uneven twisting ofthe om.

Referring to Figs, 5 to 8 Here is Crusaded avower joist hanger 50 according to 30 We Sermon whim is similar to Mat described aloe with refi::noc to Figs. 1 to

-6 4 and lie parts are assumed die Came reference numerals. In this case me hanger 50 has holes 20 er tom slots and (he joist 4 is not longitudinally adjustable relative to me hanger 50. The hanger 50 is fixed to the joist 4 by bold 25 or Me lice. Vertical adjusunent is however possible by virtue of the spy of 5 the holes 20 in the side Hange g. The side Bange 9 is spaced downwardly horn me top flange 6 and appropriately located holes in me joist 4 are prodded.

The}danger may be plum on the header and wall and attached thereto and the joist abashed to the hanger. It is however preferable Mat the hanger is first 10 attached to the joist and then attached to a wall. The hanger snap toe loosely attached to the hanger and tightened when the joist is correctly aligned, m use.

Usably, as Nauseated m Fig. 9 to f}iteee sow tolerances in building dimensions a hand 1 according to the invention is attached to one end of a joist and a hanger 50 is amched to the other end of the joist In some cases, haters 15 1 nary be attached to both ends of a joist as illustrated in Fig. 10. This arrangement allows increased tolerance to be accommodated.

The invention provides flexible system m whir versal joists for multiple applications may be used and the hangers tailored to a specific application.

20 Alternatively universal hand may be used for multiple appL;cabons and the joists taDored to a specific application.

In one a ra em t the hanger is pre-assenblcd to the l ul nnel joist 4 alloy die joist to be easily placed m position by unsldlled operators, whilst 25 mamta the benefit of large tolerances in the s aai hmess and armament of the overalls. The hanger would Men allow We cleat to be slid tight up against the bac vork, aDer placement, thereby allowing tile floor load to be town in shear hereby maximismg sn ral petfom ance.

Ref g now to Figs. 10 to 14 Mere is illustrated another joist hanger 60 according to Me invention which is similar to the hanger 1 of Figs. 1 to 4 and Lit parts are assumed the same reference neutrals. In dais case the top Sange section has a forwardly Acceding top Bange extension 6. Whilst this hanger does not fac:ilitate the top of the hang" to be flush-d1 the joist top Bange, providing the wp plate 6, 61 is fixed to the vertical face plate (probably by wading or by any suitable connection such as Leaching slots and tabs), it may be stiffer man the hangers 1, 50 described above and We joist may thereby be P - er stabDised agitmst twisting.

The invention is not limited co me embodiments herembefore descried which may be varied m dam.

Claims

- - 1. A joust hanger comprising a top flange for hanging He hanger, a

backstab depending fiom Be top flange and a side flange projecting outwardly Tom the backplane, Me hanger having adjusunent meam to facilitate aft of a joist relative to me hanger.

2. A hanger as dlai l in Him 1 wherein the adjustment mew facilitates generally longed adjustment of a joist relative to the hanger.

3. A hanger as Maimed in any preceding claim wherein the adjustment means comprises a slot in the side flange for red a fixing to ad ustably mount a jolt to We hanger.

15 4. A hanger as claimed in Claim 3 wherem me slot extends substantially

longinl y S. A hanger as mimed in clann 3 or wherein there are at least Nero laterally spaced part slots.

6. A banger as ([aimed in any preceding In wherein the adjustment means facilitates generally Yewca1 adjustment of a joist telaiwe to the hanger. 25 7. A hanger as claimed in any preceding claim wherein the side flange is spaced downwardly from the top Range.

8. A hanger as claimed in any preceding claim wherein the top flange comprises a hook for engagement behind a support such as a wall.

-9 - 9. A hanger as clawed claim 8 Where the hook composes a rear lip depending from Me top flange.

5 10. hanger as Owned any preceding clot Teheran die lop Bange comprises a forwardly Acceding top flange extension.

11. A hanger as Mimed in any preceding claim which is formed from a single piece of metal, 12. hanger as claimed in any of claims 1 to 10 wherein Me hanger comprises separate components attached together.

13. 1L hanger s sta y as hereinbefore described with reference to the 15 accompanying dra rmgs.

14. An assembly or let compusmg a mineral joist and at least one hanger as claimed in any preceding Elaine an Is. An assembler as claimed in cow 14 wherein the hater is adjustably mounted to the joist.

16. An assembly or kit substantially as hereinbefore described win reference the accompanying dawns.