GB2182972A - Improvements relating to a scaffold fitting - Google Patents

Improvements relating to a scaffold fitting Download PDF

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Publication number
GB2182972A
GB2182972A GB08527989A GB8527989A GB2182972A GB 2182972 A GB2182972 A GB 2182972A GB 08527989 A GB08527989 A GB 08527989A GB 8527989 A GB8527989 A GB 8527989A GB 2182972 A GB2182972 A GB 2182972A
Authority
GB
United Kingdom
Prior art keywords
seat
tube
fitting
flange
scaffold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08527989A
Other versions
GB8527989D0 (en
Inventor
Duncan John Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arthur Edge & Co Ltd
Original Assignee
Arthur Edge & Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arthur Edge & Co Ltd filed Critical Arthur Edge & Co Ltd
Priority to GB08527989A priority Critical patent/GB2182972A/en
Publication of GB8527989D0 publication Critical patent/GB8527989D0/en
Publication of GB2182972A publication Critical patent/GB2182972A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/045—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on profiles, e.g. I or H profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/26—Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)

Abstract

A scaffold tube (1 1) is attached to the flange (14) of a beam (10) by a fitting comprising a body (15), a lever (20) and a screw and nut mechanism (24) for driving the lever towards the body. The flange is gripped between an end portion (21) of the lever (10) and a seat (17) of the body (15). An opposite end portion (22) of the lever bears on a bearing surface (25) of the body which is inclined to the axis (27) of curvature of a part-cylindrical seat (16) of body (15) which engages tube (11). Seat (16) extends the entire length of body (15) and seat (17) faces away from seat (16). To clamp tube (11) to seat (16) the clamping means includes a curved element (18) pivotally connected to body (15) and a screw and nut mechanism (19). The screw and nut mechanism (24) acts on intermediate portion (23) of lever (20). The body (15) may have a further bearing surface spaced from surface (25) with recess (28) therebetween - projection (29) of end portion (22) extends into recess (28) to control lateral displacement of end portion (22). <IMAGE>

Description

SPECIFICATION Title: "improvements relating to a scaffold fitting" Description of Invention According to a first aspect of the present invention, there is provided a scaffold fitting comprising a body and clamping means for clamping the body to a scaffold tube and for clamping the body and tube to a flange, wherein the body defines a part-cylindrical seat for receiving the tube and has a bearing surface which faces away from the seat, .wherein the clamping means includes a lever which has a first end portion for engaging the flange, in use, a second end portion which bears against the bearing surface of the body, in use, and an intermediate portion which is subjected, in use, to clamping pressure by a further component of the clamping means to urge the end portions of the lever against the flange and body respectively and wherein the bearing surface diverges from an axis of curvature of the seat in a direction along the lever from the second end portion to the first end portion thereof.
The flange may be a flange of an "I" section beam or post. The postion at which the lever engages the bearing surface of the body depends upon the thickness of the flange with which the first end portion of the lever is engaged. The divergence of the bearing surface from the axis of curvature of the seat renders the fitting particularly suitable for use on flanges having substantially different thicknesses.
The body of a fitting in accordance with the first aspect of the invention preferably has a further bearing surface, said bearing surfaces being substantially co-planar and being spaced apart by a guide formation of the body and the second end portion of the lever having a guide formation which co-operates with the guide formation of the body to control lateral displacement of the second end portion of the lever relative to the body.
According to a second aspect of the invention, there is provided a scaffold fitting comprising a body and clamping means for clamping the body to a scaffold tube and for clamping the body and tube to a flange, wherein the body defines a part-cylindrical seat for receiving the tube and a second seat which faces away from the part-cylindrical seat and engages the flange, when the fitting is in use.
The second seat may have spaced projections which contact the flange in use.
The first and second aspects of the invention are preferably embodied in one fitting.
The second seat facilitates the establishment of a stable, non-slipping relation between the body and flange.
According to a third aspect of the invention, there is provided a method of attaching a scaffold tube to a flange by means of a scaffold fitting wherein the tube is clamped to a seat of the fitting and the flange is clamped between opposed seating surfaces of the fitting.
There is also provided in accordance with the invention a structure comprising a scaffold tube, a flanged member and a fitting according to the first aspect and/or the second aspect of the invention, the tube being attached to the flanged member by the fitting.
An example of a fitting embodying both the first and the second aspects of the invention will now be described, with reference to the accompanying drawing, which shows diagrammatically a side view of the fitting in use to attach a scaffold tube to a flange of a beam.
The structure illustrated in the drawing comprises a flanged member 10 which, in the particular example illustrated, is a horizontal beam 10 having a "l"-shaped cross-section. The structure further comprises a scaffold tube 11 which is attached to the beam by a pair of fittings (one only of which is shown in the drawing at 12) and which is spaced a short distance downwardly from the lower surface of the beam 10.
The fitting 12 is engaged with one lower flange 14 of the beam and with the tube 11.
The fitting comprises a body 15 which defines a part-cylindrical seat 16 engaged by the tube and a second seat 17 engaged by the underside of the flange 14. The seat 17 faces away from the seat 16 and is relatively short, lying adjacent to one end of the body 15; whereas the seat 16 extends along the entire length of the body.
Clamping means is provided for clamping the tube 11 to the seat 16 and for clamping the flange 14 to the seat 17. The clamping means comprises a curved element 18 which presents a part-cylindrical surface towards the tube 11, is pivotally connected with the body 1 5 adjacent to one of its ends and is releasably connected with the body adjacent to its opposite end by a screw and nut mechanism 19. The element 18 and the body collectively form a clamp which can embrace the tube 11 tightly and which can be released from the tube and opened to allow the fitting to be removed from the tube.
The clamping means further comprises a lever 20 having a first end portion 21 for engaging the flange 14, to grip the flange between the seat 17 and the end portion 21, a further end portion 22 and an intermediate portion 23. The intermediate portion 23 defines an aperture through which there extends the screw of a further screw and nut mechanism 24 which can be operated to drive the intermediate portion 23 of the lever towards the body 15.
The body 1 5 further defines a pair of bearing surfaces 25 and 26 which face generally away from the seat 16 and lie adjacent to an end of the body remote from the seat 17.
The bearing surfaces 25 and 26 are substantially parallel to each other and diverge from the axis 27 of curvature of the seat 16 in a direction along the lever 20 towards the first end portion 21 thereof. The angle of divergence is preferably within the range 5"-15".
The bearing surfaces 25 and 26 are spaced apart and between them lies a recess 28. The second end portion 22 of the lever 20 has a projection 29 which extends into the recess 28 when the end portion 22 is engaged with the bearing surfaces 25 and 26. The projection thereby prevents substantial displacement of the end portion 22 relative to the body 15 in a direction laterally of the lever.
The seat 17 preferably has a number of spaced projections, for example a pair of ribs, for engaging the downwardly facing surface of the flange 14. The body 15 can be clamped, by means of the lever 20, to the flange 14 before the tube 11 is clamped to the fitting.
However, the fitting will usually be attached first to the.tube 11 and then to the flange 14.
As the screw and nut mechanism 24 is tightened, the second end portion 22 of the lever is driven into pressure contact with the bearing surfaces 25 and 26. The exact position along these bearing surfaces at which the surfaces are contacted by the end portion 22 depends upon the thickness of the flange 14.
In a case where the fitting is applied to a relatively thick flange, the lever contacts the bearing surfaces 25 and 26 at a position which is somewhat nearer to the screw and nut mechanism 24 than is the case when the fitting is attached to a relatively thin flange 14.
The other fitting is substantially identical with the fitting 12 and is used in a corresponding manner to attach the tube 11 to the other lower flange 30 of the beam.
The- features disclosed in the foregoing description, or the accompanying drawings expressed in their specific forms or in terms of a means for performing the disclosed function, as appropriate, may, separately or in any combination of such features be utilised for realising the invention in diverse forms thereof.

Claims (1)

1. A scaffold fitting comprising a body and clamping means for clamping the body to scaffold tube and for clamping the body and tube to a flange, wherein the body defines a part-cylindrical seat for receiving the tube and has a bearing surface which faces away from the seat, wherein the clamping means includes a lever which has a first end portion for engaging the flange, in use, a second end portion which bears against the bearing surface of the body, in use, and an intermediate portion which is subjected, in use, to clamping pressure by a further component of the clamping means to urge the end portions of the lever against the flange and body respectively and wherein the bearing surface diverges from an axis of curvature of the seat in a direction along the lever from the second end portion to the first end portion thereof.
2. A scaffold fitting according to Claim 1 wherein the body has a further bearing surface, the bearing surfaces of the body being substantially co-planar and being spaced apart by a guide formation of the body and wherein the second end portion of the lever has a guide formation which co-operates with the guide formation of the body to control lateral displacement of the second end portion of the lever relative to the body.
3. A scaffold fitting comprising a body and clamping means for clamping the body to a scaffold tube and for clamping the body and tube to a flange, wherein the body defines a part-cylindrical seat for receiving the tube and a second seat which faces away from the part-cylindrical seat and engages the flange, when the fitting is in use.
4. A scaffold fitting according to Claim 3 wherein the second seat has spaced projections which contact the flange in use.
5. A method of attaching a scaffold tube to a flange by means of a scaffold fitting wherein the tube is clamped to a seat of the fitting and the flange is clamped between opposed seating surfaces of the fitting.
6. A structure comprising a scaffold tube, a flanged member and a fitting according to any one of Claims 1 to 4, the tube being attached to the flanged member by the fitting.
7. A scaffold fitting substantially as herein described with reference to and as shown in the accompanying drawing.
9. Any novel feature or novel combination of features disclosed herein or in the accompanying drawing.
GB08527989A 1985-11-13 1985-11-13 Improvements relating to a scaffold fitting Withdrawn GB2182972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08527989A GB2182972A (en) 1985-11-13 1985-11-13 Improvements relating to a scaffold fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08527989A GB2182972A (en) 1985-11-13 1985-11-13 Improvements relating to a scaffold fitting

Publications (2)

Publication Number Publication Date
GB8527989D0 GB8527989D0 (en) 1985-12-18
GB2182972A true GB2182972A (en) 1987-05-28

Family

ID=10588164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08527989A Withdrawn GB2182972A (en) 1985-11-13 1985-11-13 Improvements relating to a scaffold fitting

Country Status (1)

Country Link
GB (1) GB2182972A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239670A (en) * 1990-01-06 1991-07-10 Presco Scaffolding Ltd Scaffolding fitting
FR2677714A1 (en) * 1991-06-11 1992-12-18 Pommier & Cie Clamp with automatic positioning
GB2287278A (en) * 1994-03-10 1995-09-13 Money Cooper Limited Mounting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1537257A (en) * 1976-10-07 1978-12-29 North Western Scaffolding Co L Scaffolding
GB2111585A (en) * 1981-11-26 1983-07-06 Gkn Mills Building Serv Scaffolding clamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1537257A (en) * 1976-10-07 1978-12-29 North Western Scaffolding Co L Scaffolding
GB2111585A (en) * 1981-11-26 1983-07-06 Gkn Mills Building Serv Scaffolding clamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239670A (en) * 1990-01-06 1991-07-10 Presco Scaffolding Ltd Scaffolding fitting
GB2239670B (en) * 1990-01-06 1993-12-08 Presco Scaffolding Ltd Scaffolding fitting
FR2677714A1 (en) * 1991-06-11 1992-12-18 Pommier & Cie Clamp with automatic positioning
GB2287278A (en) * 1994-03-10 1995-09-13 Money Cooper Limited Mounting device

Also Published As

Publication number Publication date
GB8527989D0 (en) 1985-12-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)