WO2002084049A1 - Ground supported scaffolding system - Google Patents
Ground supported scaffolding system Download PDFInfo
- Publication number
- WO2002084049A1 WO2002084049A1 PCT/AU2002/000477 AU0200477W WO02084049A1 WO 2002084049 A1 WO2002084049 A1 WO 2002084049A1 AU 0200477 W AU0200477 W AU 0200477W WO 02084049 A1 WO02084049 A1 WO 02084049A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tie
- scaffolding system
- planks
- plate
- plank
- Prior art date
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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/22—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by roofs or ceilings
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
- E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/38—Scaffolds partly supported by the building
-
- 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
- E04G5/041—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffolds on roof frameworks or on roofs
-
- 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
- E04G5/06—Consoles; Brackets
-
- 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
- E04G5/06—Consoles; Brackets
- E04G5/061—Consoles; Brackets specially adapted for attachment to scaffolds
Definitions
- the present invention relates to a ground supported scaffolding system and a kit of parts for constructing same. More particularly, the invention provides in its various embodiments a ground supported scaffolding system which advantageously provides for substantially unimpeded access to a structure to be serviced.
- a ground supported scaffolding system comprising two or more mutually spaced vertical supports intended to stand on an axis substantially parallel to a structure to be serviced, means to support a horizontal walkway between the vertical supports and tie means for connecting the upper end of a vertical support to an upper part of the structure.
- the means to connect the scaffold to the structure may take any suitable form, but in a particularly preferred embodiment includes a plate which is securable to the structure and a tie, one end of which is linked to the plate, the opposite end of which is attached to the vertical support, the linkage of the tie and plate and the attachment between the tie and vertical support facilitating adjustment of the plate relative to the pitch of the upper part of the structure. More particularly, the linkage of the tie and plate and the attachment between the tie and vertical support facilitate not only movement of the plate towards the structure, but also at least some rotational movement of the plate in planes both parallel to the face of the structure and perpendicular to the face of the structure.
- the tie is attached to the vertical support through a connector which includes a collar portion for receiving the vertical support and a channel portion which is hingedly attached to the collar portion and which receives and locates the tie, and preferably the tie is linked to the plate through a hinge, ball joint or mechanical equivalent.
- a connector which includes a collar portion for receiving the vertical support and a channel portion which is hingedly attached to the collar portion and which receives and locates the tie, and preferably the tie is linked to the plate through a hinge, ball joint or mechanical equivalent.
- the plate preferably has slots for the reception of fasteners, typically screws or bolts which may enter the roof timbers, studs, trusses or the roof plate which joins the top of the wall studs.
- the plate may have a protective layer underlying the plate, such as rubber for prevention of marring metal roofing. When the -oof is tiled, a few tiles may be removed to allow the plate to lie on the roofing timber ⁇
- the roof is metal
- the roof screws are removed, the plate is laid on top of the roof and the screws replaced thereby fixing the plate.
- the building has a parapet, the plate is fixed to the parapet crown.
- the plate is versatile in that it is connectable to the fascia, the gutter or other face of the structure, eg. siding.
- the means to support the walkway may take any suitable form.
- the walkway includes one or more planks, preferably metal planks, extending between said vertical supports and the means to support the walkway includes brackets which extend from each of the vertical supports towards the structure to be serviced.
- the brackets extend from the vertical support towards the structure without obstructing access to the structure.
- the bracket may be the width of two planks and strengthened by a diagonal strut. This is suitable for supporting the plank between its ends.
- the vertical supports are spaced at a distance corresponding substantially to the length of the planks and the brackets are provided with means for securing respective ends of the planks to the brackets.
- the means for securing the planks includes at least one tab located on each of the brackets, each of the tabs being received by an under sides of a respective plank end when the planks are laid on the brackets.
- each bracket includes at least one elongate tab which extends along the length of the bracket, the number of elongate tabs on each bracket corresponding to the number of plank ends to be secured to the bracket.
- each bracket will include two elongate tabs along one side thereof, each elongate tab being received by the end of one of the planks. In this case, there is a small gap between the two elongate tabs on each bracket. If planks are to extend from the opposite side of the bracket, then another two elongate tabs will be provided on the opposite side of the bracket to locate the ends of the additional planks.
- planks are secured to the brackets such that the ends of the planks abut and plank overlapping is precluded. This will of course only be relevant in situations where there are more than two vertical supports.
- each bracket includes a platform capable of supporting on a common plane the abutting ends of two pairs of side by side planks and means for attaching the platform to a vertical support.
- the walkway includes a kickboard comprising a body portion extending between the vertical supports and being secured between the edge of a plank of the walkway and the vertical supports and optionally an elongate right angle bracket which includes a base portion which is secured to a surface of the plank adjacent the plank edge and an extending portion which extends at 90° to the surface of the plank.
- bracing may also be provided.
- the vertical supports are braced against racking by a strut having a means at the upper end to removably engage the vertical support and means at the lower end to engage a ground anchor.
- the scaffolding system may also include additional features.
- the walkway may be protected by a substantially L-shaped sliding gate which in the open position is partially accommodated in a sleeve mounted on a vertical support which functions as a ladder rest.
- the invention also provides a kit as parts for constructing a ground supported scaffolding system comprising at least two vertical supports, tie means for connecting the upper end of a vertical support to an upper part of the structure to be serviced and means to support a horizontal walkway between the vertical supports and the structure.
- a kit as parts for constructing a ground supported scaffolding system comprising at least two vertical supports, tie means for connecting the upper end of a vertical support to an upper part of the structure to be serviced and means to support a horizontal walkway between the vertical supports and the structure.
- Figure 1 is a diagrammatic front view of a scaffolding system adjacent a house
- Figure 2 is a diagrammatic side elevation of the scaffolding system of Figure 1
- Figure 3 is an exploded view of the scaffolding system connection to a house roof.
- Figure 4 is a side view of the scaffolding system in position on a building showing connection to the house roof similar to Figure 3;
- Figure 5 is a perspective view of a bracket for supporting the centres of walkway planks
- Figure 6 is a perspective view of a bracket for supporting the ends of four planks
- Figure 7 is a top view of four metal planks positioned on an alternative bracket
- Figure 8 is a side view of the arrangement of Figure 7, also illustrating a counter levered plank
- Figure 9 is a perspective view of a brace to limit racking
- Figures 10 and 11 are side elevation views of kickboard arrangements
- Figure 12 is a perspective view of a ladder rest and a walkway gate which slides open and shut;
- Figure 13 is a side view of a tie connected to a roof timber using a nailed bracket.
- FIG 14 is a side view of a tie connected to a roof timber using a nailed plate.
- a pair of square section steel supports 2 each stand in a base plate 4 spaced apart by about the length of a builders plank 6 and about 800mm from the building 8.
- the supports 2 are made from 3mm DURAGALTM tube and extend 8m, that is above the second storey gutter 10.
- a handrail 12 joins the vertical supports 2 and a kickboard 14 is mounted at 90° to the plank 6.
- the vertical support 2 carries a connector 15 which includes a collar 16 with a clamp screw 18.
- Hinge 20 is welded to the collar face and the side of a tie collar 22.
- a tie 24 made of square tubing slides adjustably through the collar
- the tie position is adjusted to cause the roof end of the tie to rest close to the gutter 10 (not shown). Access to this position is arranged by a ladder and the nearest roof nails or screws are extracted.
- the roof end of the tie 24 carries a steel slotted plate 28, for example having dimensions 800 x 150mm, with an end bolt keeper 30A and mid bolt keeper 30B.
- One end of tie 24 has a corresponding bolt tube 32.
- the plate 28 is secured to the roof timbers or other portion of the upper part of the structure using the removed nails or screws which are repositioned through holes 35 in the plate 28.
- Figure 4 shows how the hinge 20 opens to permit the plate 28 to fix to a hipped roof.
- the plate 28 has a layer of closed cell foam (not shown) adhered to the underside, enabling it to sit on corrugated or long run COLOURBONDTM steel roof.
- plank brackets 40 and 41 are illustrated. These may be suspended from the vertical supports 2.
- a channel 36 embraces the support 2 and is retained at a desired height by a pin.
- Channel 36 may be welded to a platform 46, in the case of bracket 40, and may also be provided with a triangular strut 43.
- a tab 45 is provided on the distal end of the platform 46 to assist in positioning of planks on the platform 46.
- the bracket 41 includes an alternative platform 42 arrangement.
- This platform 42 is securable in position (as shown) through a triangular strut 44.
- the platform 42 advantageously allows generous overlap and two pairs of butted plank ends are accommodated.
- the plank ends at the end of the walkway preferably rest on right angle bracket arm or platform 46.
- bracket 49 which is again mounted on a vertical support 2 and includes elongate tabs 54, shown in Figure 7 by dotted line.
- the tabs 54 are received by respective ends of the planks 6 which are supported by the bracket 49 such that lips 55 of the planks 6 extend over the elongate tabs 54.
- the metal planks 6 are not solid, but include lips on longitudinal sides and transverse ends of the planks 6.
- the bracket 49 includes four elongate tabs 54, each of which receives a respective end of a plank 6.
- a C/L bracket or brackets 57 may be provided. Such brackets are secured to abutting planks 6 by inserting pins 59 through holes 61 in the planks 6.
- the counter levered plank 6A may be secured to a suitable plank 6 by a locating pin 63.
- a bracing arm 48 may be provided.
- supports 2 are braced against racking by arm 48 which ends in plate 50.
- Ground spike 52 projects through a bore punched in plate 50.
- this embodiment of the invention may provide for a medium duty rating for scaffolding which provides access to the structure to be serviced which is more like that provided by low duty rating scaffolding systems. This is particularly the case where a combination of the abovementioned connection of Figure 3 (or a similar connection), metal plank arrangement of Figure 7 (with or without counter levered planks) and bracing of Figure 9 is employed.
- the outer planks support kickboard 14 through fitting 56 which has a C-shaped body 58 for embracing the edge of the plank 6 and an upright channel 60 into which the kickboard 14 drops.
- the kickboard 14 drops into a gap between a plank and the supports 2 and rests on the bracket 65.
- a right angle bracket 66 is also provided to better secure the kickboard 14. The bracket 66 is secured to the plank by a pin as shown.
- a double collar fitting 62 clamps handrail 64 to the supports 2 and a separate fitting 67 carries an outer fixed tube 68 about 500mm long which acts as a ladder rest and a sliding inner tube 70 formed into a simple barrier to the walkway. Stop 72 prevents the ladder (not shown) sliding off the rest 68.
- the tie 24 extends from the vertical support 2 as in Figure 4.
- the roof timbers 74 are accessible for securing the system.
- the roof end of the tie has a channel bracket 76 which circulates with a rafter bracket 78 nailed to the rafter.
- the roof end of the tie has bolt tube 32 which allows the plate 28 to connect to the keeper 30A.
- the plate is simply nailed to the rafter side.
- Multi storey structures can be worked on if the ties are connected to the structure and disengaged storeywise as the work moves to the lower storey.
- various embodiments of the invention may provide advantages in that the scaffold is ground supported and gives full access to the vertical exterior of the building; the construction of the roof is not an impediment to fixing as a variety of roof slopes can be accommodated; and overall satisfaction of current safety regulations is possible.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Movable Scaffolding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPR4447A AUPR444701A0 (en) | 2001-04-18 | 2001-04-18 | Harvest scaffold |
AUPR4447 | 2001-04-18 | ||
AU63628/01A AU6362801A (en) | 2001-04-18 | 2001-08-20 | Scaffold |
AU63628/01 | 2001-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002084049A1 true WO2002084049A1 (en) | 2002-10-24 |
Family
ID=25634031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2002/000477 WO2002084049A1 (en) | 2001-04-18 | 2002-04-16 | Ground supported scaffolding system |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU6362801A (en) |
WO (1) | WO2002084049A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2698486A3 (en) * | 2012-08-14 | 2014-04-16 | Hämeen Laaturemontti Oy | Vertical support structure for roofing safety fence system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4078633A (en) * | 1976-02-09 | 1978-03-14 | Fahy Michael B | Modular staging with platform jacks |
US4392550A (en) * | 1981-04-24 | 1983-07-12 | Bergeron Gaetan G | Scaffolding arrangement |
DE3526105A1 (en) * | 1984-08-10 | 1986-02-20 | VEB (B) Bauinvest Dresden, DDR 8060 Dresden | Scaffolding for repair work on façades and eaves |
WO1996000336A1 (en) * | 1994-06-23 | 1996-01-04 | Kookoala Pty Ltd | Scaffolding assembly |
WO2001048334A1 (en) * | 1999-12-24 | 2001-07-05 | Alltrades Pty. Limited | Scaffolding |
-
2001
- 2001-08-20 AU AU63628/01A patent/AU6362801A/en not_active Abandoned
-
2002
- 2002-04-16 WO PCT/AU2002/000477 patent/WO2002084049A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4078633A (en) * | 1976-02-09 | 1978-03-14 | Fahy Michael B | Modular staging with platform jacks |
US4392550A (en) * | 1981-04-24 | 1983-07-12 | Bergeron Gaetan G | Scaffolding arrangement |
DE3526105A1 (en) * | 1984-08-10 | 1986-02-20 | VEB (B) Bauinvest Dresden, DDR 8060 Dresden | Scaffolding for repair work on façades and eaves |
WO1996000336A1 (en) * | 1994-06-23 | 1996-01-04 | Kookoala Pty Ltd | Scaffolding assembly |
WO2001048334A1 (en) * | 1999-12-24 | 2001-07-05 | Alltrades Pty. Limited | Scaffolding |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2698486A3 (en) * | 2012-08-14 | 2014-04-16 | Hämeen Laaturemontti Oy | Vertical support structure for roofing safety fence system |
Also Published As
Publication number | Publication date |
---|---|
AU6362801A (en) | 2002-10-24 |
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