AU704029B2

AU704029B2 - Improved scaffolding support structure

Info

Publication number: AU704029B2
Application number: AU54725/96A
Authority: AU
Inventors: Peter John Ryan
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-21
Filing date: 1996-06-04
Publication date: 1999-04-15
Anticipated expiration: 2016-06-04
Also published as: AU5472596A

Description

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THIS INVENTION relates to a scaffolding support structure for use adjacent walls of houses or other buildings so as to permit work on the wall and is particularly, but not exclusively, applicable to use with single storey or cottage type buildings where scaffolding regulations normally do not require safety rails or the like.

The conventional technique involving the building up of a scaffold structure from the ground or other support surface comprises the stacking, interlocking and bracing of the scaffold structure using relatively expensive clamping components.

It is also known to provide elongated members such as poles and lattice masts essentially supported by the building construction during or after constructing of the building. These support members have usually required permanent support connection means on the building structures.

It is an object of the present invention to provide an easily erected relatively inexpensive light scaffolding support structure which whilst using a part of the building for location of the upper part of the structure does not require said building part to act as a fixture support but merely as a temporary locating or abutting means enabling the support structure to be held in a vertical manner at a desired distance from the building wall so as to support a walkway for workmen between two or more structures and also to support materials to be used on the building.

It is also an object of the present invention to provide an easily erected simple inexpensive scaffolding support structure for use adjacent a timber framework building wall to support workmen and materials in the construction of an exterior wall of timber or other cladding material on said framework building wall.

According to a first aspect of the invention there is provided a scaffolding support structure for use adjacent a building wall comprising an elongated mast adapted for vertical location adjacent a building wall, said mast being adjustable in length and having a ground engaging foot member at the lower end thereof, an arm member adjacent the upper end of the mast adapted to be vertically adjustable thereon and extending towards said building wall, said arm member being secured to a socket adjustable in position on the mast, the outer free end of said arm member having means shaped for engagement with roof guttering of the building or with a REO:FPH:17847.RSI 26 November 1998 Kv

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fascia board of the building.

The engagement of the outer end of said upper arm member with the edge part of the roof may preferably be engagement over the outer edge of the roof guttering or in the case of an internal box gutter the engagement may be with the lower edge of the fascia board surrounding the internal gutter.

According to a second aspect of the invention there is provided a scaffolding support structure for use adjacent a building wall comprising an elongated mast adapted for vertical location adjacent a building wall framework, said mast being adjustable in length and having a ground engaging foot member at the lower end thereof, an arm member adjacent the upper end of the mast adapted to be vertically adjustable thereon and extending towards said building wall framework, said arm member being hingedly secured to a socket adjustable in position on the mast, the outer free end of said arm member having means shaped for releasable locking engagement partly around a vertical supporting stud of the building wall framework.

15 The releasable locking means on the outer end of said arm member comprises a C-shaped bracket adapted to engage partly around the supporting stud, and pivotally mounted partly around and over the arm member, adjacent the C-shaped bracket there is provided a wedging member having upper and lower angularly disposed faces for engaging the adjacent edge of the stud to provide secure S 20 engagement of the C-shaped bracket on said stud.

The pivotal part of the clamp member allows said member to be used with varying dimensions of studs.

According to a third aspect of the invention there is provided an arm member suitable for use in a scaffolding support structure, the arm member having a first end attachable to a mast through a socket, said mast adapted for vertical location adjacent a building wall, said mast being elongate and adjustable in length and having a ground engaging foot member at the lower end of the mast, said arm member being adjustable vertically along the length of said mast, said arm member extending toward said building wall, wherein located at a second and free end of the arm member is a means adapted for engagement with any one of a roof guttering of the REO:FPH:17847.RSI 26 November 1998 building, a fascia board of the building or a vertical supporting stud forming part of a framework adjacent the building wall.

According to a fourth aspect of the invention there is provided a load-bearing platform support member for use in a scaffolding structure, said support member being pivotally attached to a socket member which is slidable on a mast and lockable in vertical position by removable locking and locating means, said support member comprising two spaced-apart members connected by spacers so as to allow said support member to pivot on the mast between a vertical transporting location and a horizontal load-bearing location.

In order that the invention and its manner of performance may be more fully understood, reference will now be made to embodiments of the invention as ii illustrated in the accompanying drawings in which:- Figure l a is a side view illustrating an embodiment of the scaffolding support structure of the invention engageable at its upper end S: 15 over the roof guttering; o S REO:FPH:17847.RS 1 26 November 1998 Figure lb is a side view illustrating another embodiment of the scaffolding support structure of the invention engageable at its upper end around a timber framework stud; Figure 2 is a side of a lower platform support arm in its transporting configuration; Figure 3 is a perspective view of the lower platform support arm of Figures la and ib; Figure 4 is a detail along the line 4-4 of Figure 3 of a plank retaining clamp member; Figure 5 is a perspective view of a locking pin with swivel clip; Figure 6 is a perspective view of the stud clamping bracket of Figure ib; Figure 7 is a side sectional view along the line 7-7 of Figure 6; Figure 8 is a side sectional view similar to Figure 7 but showing engagement with a wider stud; Figure 9 is a perspective view of the upper locating arm in the mode for engagement over the guttering; Figure 10 is a side view of the upper locating arm of Figure 9 in the reverse mode for engagement on the lower edge of a fascia board; and Figure 11 is a perspective view of Figure 10 without the fascia board.

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*r C. C C Referring to the drawings, Figure la is an illustration of one main embodiment of the invention which includes a mast or pole 5, preferably but not exclusively of square section metal tubing, which for convenience in transporting and packaging may be in two or more parts suitably connected by sockets and pins or the like. Mast 5 is provided at its lowermost end with a ground-engaging plate 6 suitably pivoted on the lower end of mast 5 to accommodate ground slope. Towards the upper end of mast 5 an arm member 7 is vertically adjustably located through socket member 8 on mast 5 and extends inwardly towards the guttering 9 of a building and bracket means 10 on the outer end of arm 7 engages in abutting fashion over the outer lip 17 of guttering 9 whilst not being fixedly secured to guttering 9.

AWC.RI7847RYASPC 4 June 1996 In the reverse position of arm member 7 and bracket means 10 as shown in Figures and 11, bracket means 10 may be used to engage under and abut a fascia board 11 and this arrangement is particularly useful on roofing structures having internal box guttering behind the fascia board.

On the top of mast 5 there is provided a cap 12 enclosing a pulley member 13 guiding a rope 14 attached at one end to an eye member 15 on a spring-actuated attachment 16 on arm member 7 whereby on pulling the other end of rope 14, arm member 7 may be raised together with its socket 8 to position the bracket means over the outer lip 17 of guttering 9. Resilient means in the form of a spring attachment 16 is connected to pivotal section 18 of arm member 7 by a gusset 19 and is operable when the bracket 10 is used on the lower edge of fascia board 11 to "firmly engage the bracket 10 on the underside of fascia board 11 by holding arm 7 in a straight one-piece configuration. Disengagement of bracket 10 from the fascia p..

board 11 is achieved by pulling on a rope 20 secured to U-shaped bracket 21 to 15 break the pivot of section 18 to release the upward pressure of bracket 10 on the underside of fascia board 11.

:Between the upper arm member 7 and the ground there is located a loadp p0 S° bearing platform support member 24 pivotally attached to socket member 25 slidable on mast 5 and lockable in vertical position by locating pin 22 and swivel locking clip 23. The lateral position of support member 24 for use in this embodiment is o. shown in broken line in Figure l a, the support member comprising two spaced-apart angle iron members 26 connected by spacers 27 welded therebetween so as to allow the members 26 to pivot around socket 25 from a vertical location against socket to a load-bearing horizontal location engaging against stop member 28 conveniently in the form of an angle iron member welded to the inner face of socket 25 and within the space bounded by arcuate guard member 29. The support member 24 is conveniently pivoted to the vertical alongside socket 25 for transporting purposes.

Support member 24 is designed to accommodate a pair of supporting planks 30 held in position on members 26 by a retaining clip 31 and end retaining outer end abutments 32. Clip 31 is of hook shape having a base plate 33, a leg 34 and end REO:FPH: 17847.RSI 26 November 1998 hook part 35, with leg 34 being insertable in the slot between members 26 so that 0 0 .00 0 REO:FPH 17847.RS I 2 o br19 26 November 1998 6 hook part 35 engages under a member 26 with the dimension of leg 34 and hook part 35 being such that clip 31 cannot be removed when in position between two supporting planks 30 as shown in Figures 3 and 4. It will be appreciated that planks extend between at least two supporting masts 5 and support member 24 extends inwardly towards the building wall so as to obviate any outward damaging cantilever effect on guttering 9 and fascia board 11.

Figure lb is a further embodiment in respect of the use of the invention with a building framework which is firmly secured to a flooring slab or the like and includes vertical support members in the form of studs.

Referring to Figure lb there is shown a stud member 36 of a building framework and extending from an elongated socket 37 on mast 5 is a locating arm 38 pivotally mounted at one end to socket 37 at 39 and at the other end to a Cshaped bracket 40 adapted to engage partly around stud 36. Pivotally mounted at 41 adjacent bracket 40 is a U-shaped member 42 having upper and lower stud 15 engaging faces 43 and 44. Faces 43 and 44 are angularly disposed so as to present a pair of sharp edges 45 and 46 uppermost, the edge 45 at the lower pivotal location of member 42 engaging an outer face of a standard size stud 36 so as to provide a secure engagement of bracket 40 around stud 36.

•With studs of great dimensions, member 42 can engage the outer face of the 20 stud at an angle thereto so that with the largest dimension of stud, both faces 43 and 44 and edges 45 and 46 engage against the outer face of the stud. It is advantageous in the locating of the C-shaped bracket 40 to provide a pointed pin 47 on the inner base of bracket 40 which can be pushed or hammered into the stud at the required location of bracket 40 to provide a temporary placement of the bracket whilst member 42 is moved around its pivot 41 down against stud 36 to firmly secure the bracket 40 on the stud.

With this embodiment of the invention the platform support member 24 as previously described may be located in a laterally outwardly extending direction as shown in full line in Figure lb as there will be no significant damaging cantilever effect on stud 36.

AWC:RRI17947RYASPC 4 Junt 1996 As a further feature of the invention there is provided a locking pin 22 for securement through locating holes in the sockets 8, 25, 37 and mast 5. Attached to pin 22 is a clip member 23 having a base section 48, long leg 49 extending from one end of base 48 and attached to one end of pin 22 and a short leg 50 extending normally from the other end of base 48, leg 49 extending at an angle, generally about 45° but not limited thereto, from the base section 48.

In use pin 22 is inserted through the appropriate holes with long leg 49 extending substantially horizontal to the mast 5 so as to allow pin 22 to penetrate fully through a socket and the mast and then clip member is moved or dropped downwards so that base 48 engages against a socket and legs 49 and 50 engage on opposite sides of the socket to prevent removal of pin 22 from its locating holes.

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a AWC:RR:17847RYA.PC 4 Jum 1996 The claims defining the invention are as follows: 1. A scaffolding support structure for use adjacent a building wall comprising an elongated mast adapted for vertical location adjacent a building wall, said mast being adjustable in length and having a ground engaging foot member at the lower end thereof, an annrm member adjacent the upper end of the mast adapted to be vertically adjustable thereon and extending towards said building wall, said arm member being secured to a socket adjustable in position on the mast, the outer free end of said arm member having means shaped for engagement with roof guttering of the building or with a fascia board of the building.

2. A scaffolding support structure according to claim 1 wherein the outer free end of the arm member is provided with a hook-shaped bracket member adapted to S:be located in freely engaging abutting fashion over the outer lip of the roof guttering.

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3. A scaffolding support structure according to claim 1 or claim 2 wherein said 15 arm member comprises pivotal parts held in straight line operating configuration by resilient means engageable between a pivotal arm part and the mast socket securing the arm member.

o i 4. A scaffolding support structure according to claim 2 or claim 3 and including pulley means located on the upper end of the mast for guiding a rope member attached at one end to the arm member adjacent its socket for raising the arm and its socket to position the bracket member over the outer lip of the guttering.

A scaffolding support structure according to claim 1 wherein the outer free end of the arm member is provided with a hook-shaped bracket member adapted to be located under and abut a fascia board of the building, and locking and locating means for securing said arm member supporting socket when said bracket member REO:FPH:17847.RSI 26 November 1998

Claims

6. A scaffolding support structure according to claim 5 wherein said arm member comprises pivotal parts held in straight line configuration by resilient means engageable between a pivotal arm part and the mast socket securing the arm member.
7. A scaffolding support structure according to any one of claims 1, 5 or 6 and including manual pulling means attached to the underside of the arm member adjacent the fascia board engaging bracket member for breaking the straight-line configuration of the arm member against the resilient means pressure to release the engagement of the bracket member from the underside of the fascia board to allow removal of the scaffolding support structure. S6
8. A scaffolding support structure for use adjacent a building wall comprising an elongated mast adapted for vertical location adjacent a building wall framework, said mast being adjustable in length and having a ground engaging foot member at 15 the lower end thereof, an arm member adjacent the upper end of the mast adapted to be vertically adjustable thereon and extending towards said building wall framework, said arm member being hingedly secured to a socket adjustable in Sposition on the mast, the outer free end of said arm member having means shaped for releasable locking engagement partly around a vertical supporting stud of the S 20 building wall framework.
9. A scaffolding support structure according to claim 8 wherein said releasable locking means on the outer end of said arm member comprises a C-shaped bracket adapted to engage partly around the supporting stud, and pivotally mounted partly around and over the arm member adjacent the C-shaped bracket there is provided a wedging member having upper and lower angularly disposed faces for engaging the adjacent edge of the stud to provide secure engagement of the C-shaped bracket REO:FPH:17847.RS 26 Novmber 998 -I 0 j2 oebr19 ~I on said stud. A scaffolding support structure according to claim 9 wherein said upper and lower angularly disposed faces present a pair of sharp edges uppermost whereby in the locking position of the C-shaped bracket the upper sharp edge engages the adjacent edge of the stud so as to provide a secure engagement of the C-shaped bracket on the stud.
11. A scaffolding support structure according to claim 10 wherein with timber studs, a pointed locating pin is provided on the inner base part of the C-shaped bracket opposite the engaging end of the arm member whereby on pushing or hammering said base against the stud, there is provided temporary placement of the bracket whilst the wedging member is actuated to firmly secure the bracket on the stud.
12. A scaffolding support structure according to any one of the preceding claims and including a load-bearing platform support member pivotally attached to a socket 15 member which is slidable on the mast and lockable in vertical position by removable locking and locating means, said support member comprising two spaced-apart amembers connected by spacers so as to allow said support member to pivot on the oo amast between a vertical transporting location and a horizontal load-bearing location.
13. A scaffolding support structure according to claim 12 wherein an arcuate guard member is provided on the socket member opposite said platform support member and a stop member is attached to said socket member within said guard member, said stop member engaging said platform in its load-bearing location and holding same in a horizontal position.
14. A scaffolding support structure according to claim 12 or claim 13 wherein the platform support member is adapted to locate a pair of supporting planks to be held R A i SREO:FPH:17847.RSI 26 November 1998 VTTVT 11 in position on the spaced-apart members by retaining clips of hook-shape being insertable in the slot between the spaced-apart members and engageable under one of the spaced-apart members so as to retain the pair of supporting planks when they are in position between the platform socket and upstanding retainer members on the outer ends of the spaced-apart members. A scaffolding support structure according to any one of claims 1 to 11 having locking and locating means for securing the socket for adjustability of the length of the mast and positioning along the mast the socket members bearing the arm member.
16. An arm member suitable for use in a scaffolding support structure, the arm member having a first end attachable to a mast through a socket, said mast adapted for vertical location adjacent a building wall, said mast being elongate and adjustable o. in length and having a ground engaging foot member at the lower end of the mast, said arm member being adjustable vertically along the length of said mast, said arm member extending toward said building wall, wherein located at a second and free end of the arm member is a means adapted for engagement with any one of a roof oo guttering of the building, a fascia board of the building or a vertical supporting stud forming part of a framework adjacent the building wall.
17. An arm member according to claim 16 adapted for engagement to said roof guttering, wherein the free end of said arm member is provided with a hook-shaped bracket member adapted to be located in freely abutting engagement over the lip of said guttering.
18. An arm member according to claim 16 or claim 17 adapted for engagement to said roof guttering further including pivotal parts held in straight line operating configuration by resilient means engageable between a pivotal arm part and said socket securing the arm member to the mast. REO:FPH: 17847.RS 6 26 November 1998
19. An arm member according to claim 18 wherein a gusset means is attached between said pivotal arm part and said resilient means. An arm member according to claim 17 adapted for engagement to said roof guttering further including means to which is attached a rope member, said rope member extending around a pulley means located on an upper end of said mast such that said socket and said arm member is raised or lowered to position the bracket member over the lip of said guttering.
21. An arm member according to claim 16 adapted for engagement to said fascia board wherein the free end of said arm member is provided with a hook-shaped bracket member adapted to be located under and abut said fascia board. iOQ
22. An arm member according to claim 21, further including pivotal parts held in straight line configuration by resilient means engageable between a pivotal arm part and said socket securing the arm member to the mast. i• o•
23. An arm member according to claim 22 wherein a gusset means is attached 15 between said pivotal arm part and said resilient means. S24. An arm member according to any one of claims 16, 21, 22 or 23 adapted for .".engagement to said fascia board including manual pulling means attached to the arm member adjacent the hook-shaped bracket member for breaking the straight-line configuration of the arm member against the resilient means pressure to release the engagement of the bracket member from the underside of the fascia board to allow removal of the bracket member from the fascia board. An arm member according to claim 16 for engagement with said vertical supporting stud wherein said arm member is hingedly secured to said socket, said socket being adjustable in position on the mast, and the free end of said arm member R REO:FPH:17847.RSI 26 Novcmber 1998 'ANvmbr19 13 having means shaped for releasable locking engagement partly around said vertical supporting stud.
26. An arm member according to claim 25 wherein said releasable locking means on the free end of said arm member comprises a C-shaped bracket adapted to engage partly around the supporting stud, and pivotally mounted partly around and over the arm member adjacent the C-shaped bracket there is provided a wedging member having upper and lower angularly disposed faces for engaging the adjacent edge of the stud to provide secure engagement of the C-shaped bracket on said stud.
27. An arm member according to claim 26 wherein said upper and lower angularly disposed faces present a pair of sharp edges uppermost whereby in the locking position of the C-shaped bracket the upper sharp edge engages the adjacent edge of the stud so as to provide a secure engagement of the C-shaped bracket on the stud.
28. An arm member according to claim 27 wherein with timber studs, a pointed 15 locating pin is provided on the inner base part of the C-shaped bracket opposite the engaging end of the arm member whereby on pushing or hammering said base o* o against the stud, there is provided temporary placement of the bracket whilst the wedging member is actuated to firmly secure the bracket on the stud. be
29. A load-bearing platform support member for use in a scaffolding structure, said support member being pivotally attached to a socket member which is slidable on a mast and lockable in vertical position by removable locking and locating means, said support member comprising two spaced-apart members connected by spacers so as to allow said support member to pivot on the mast between a vertical transporting location and a horizontal load-bearing location.
30. A load-bearing platform support member according to claim 29 wherein an REO*FPH: 17847.RSI 26 November 1998 14 arcuate guard member is provided on the socket member opposite said platform support member and a stop member is attached to said socket member within said guard member, said stop member engaging said platform support member in its load- bearing location and holding same in a horizontal position.
31. A load-bearing platform support member according to claim 29 or claim wherein the platform support member is adapted to locate a pair of supporting planks to be held in position on the spaced-apart members by retaining clips of hook-shape being insertable in the slot between the spaced-apart members and engageable under one of the spaced-apart members so as to retain the pair of supporting planks when they are in position between the platform socket and upstanding retainer members on the outer ends of the spaced-apart members. *r 66 "o 32. An arm member according to any one of claims 16 to 28 wherein there is •,provided locking and locating means for positioning said socket bearing said arm 6 6 member along the length of the mast. IOO 15 33. A load-bearing platform support member according to any one of claims 29 to 31 wherein there is provided a locking and locating means for positioning the 'socket member along the length of the mast. o• 34. The scaffolding support structure of claim 15 or the arm member of claim 32 S 15 or the load bearing platform support member of claim 33 wherein the locking and locating means comprises a clip member having a base section, a long leg extending from one end of the base section at an angle thereto and having a pin attached at its outer end, and extending parallel to said base section, and a short leg extending normally to and from the other end of the base section, whereby on insertion of the pin through appropriate apertures in the mast body and the socket members with the long leg horizontal to the mast, and dropping the clip member downwards the legs engage on opposite sides of the socket member and prevent removal of the pin from EOFPH:17847 RS1 26 November 1998 its locking position. A scaffolding support structure substantially as hereinbefore described with reference to the accompanying drawings.
36. An arm member substantially as hereinbefore described with reference to the accompanying drawings.
37. A load-bearing platform support member substantially as hereinbefore described with reference to the accompanying drawings. DATED: 26 November 1998 0 CARTER SMITH BEADLE Patent Attorneys for the Applicant: PETER JOHN RYAN 0 0 S 0 REO:FPH: 17847.RSI 26 November 1998 ABSTRACT A scaffolding support structure comprising an elongated mast adjustable in length and having a ground engaging foot member, the mast being adapted for vertical location adjacent a building wall or framework, an arm member located on the mast and vertically adjustable thereon, said arm member being adapted to extend towards said building wall or framework with said outer free end of the arm having means for abutting engagement with an outer edge part of the building roof or means for releasably locking the arm around a vertical supporting stud of the building wall framework. S S. SO 0*55 S S. S S *5O5
555.5 S S. *5 S S AWCRI 17847RYA.PC 4 June 1996