EP0117066B1 - Scaffold platform - Google Patents

Scaffold platform Download PDF

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Publication number
EP0117066B1
EP0117066B1 EP84300351A EP84300351A EP0117066B1 EP 0117066 B1 EP0117066 B1 EP 0117066B1 EP 84300351 A EP84300351 A EP 84300351A EP 84300351 A EP84300351 A EP 84300351A EP 0117066 B1 EP0117066 B1 EP 0117066B1
Authority
EP
European Patent Office
Prior art keywords
platform
cross
engaging
extending members
leg
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.)
Expired
Application number
EP84300351A
Other languages
German (de)
French (fr)
Other versions
EP0117066A1 (en
Inventor
Anthony William
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.)
Zig Zag Scaffolds Ltd
Original Assignee
Zig Zag Scaffolds 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 Zig Zag Scaffolds Ltd filed Critical Zig Zag Scaffolds Ltd
Publication of EP0117066A1 publication Critical patent/EP0117066A1/en
Application granted granted Critical
Publication of EP0117066B1 publication Critical patent/EP0117066B1/en
Expired legal-status Critical Current

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    • 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
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/26—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons specially adapted for working 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/26—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons specially adapted for working on roofs
    • E04G3/265—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons specially adapted for working on roofs with means to adapt it to a variable pitch of the roof

Definitions

  • This invention relates to a scaffold platform which may be engaged with for example the ridge of a roof or a window opening to provide a working support surface adjacent thereto.
  • a particular although not exclusive application of such a platform is to enable workmen to repoint repair or rebuild the tops of chimney stacks, but several other uses are envisaged such as working on the roof itself, on adjacent walls or even the erection of television aerials.
  • a scaffold platform according to the first part of claim 1 is known from GB-A-1,592,372.
  • a scaffold platform comprising means for engaging a roof ridge, window opening or like horizontal edge, frame means suspended from the engaging means and comprising longitudinal elements interconnected by cross-extending members, a horizontally disposed platform means engaged with a first of said cross-extending members, and supporting leg means connected at one end thereof to the platform means and engaged at the other end thereof with a second of said cross-extending members, characterised in that the frame means is of ladder-like configuration and comprises a plurality of cross-extending members adapted for engagement with said platform means and leg means, and in that the platform means and leg means are releasably engaged with such members, such that the platform means and leg means may be engaged with different pairs of said cross-extending members whereby the height of the horizontal platform means may be varied.
  • the platform means and leg means may be engaged with different pairs of said cross-extending members whereby to alter the level of the platform means.
  • the platform means itself is preferably provided with at least one guard rail on at least two sides thereof for the protection of men working thereon.
  • a further preferred feature of the invention is the provision of at least one and preferably two stabilising struts connected between the engaging means and one of said cross-extending members. This can considerably increase the rigidity of the scaffold platform and lessen any tendency to slide down the pitch of a roof which could happen if the engaging means tended to pivot with respect to the remainder of the platform.
  • the said leg means preferably comprises a pair of legs connected between the platform means and the respective member, and in a preferred arrangement these legs are telescopically extendable to allow for different configurations.
  • load spreading means may be mounted on the frame means and preferably also on the engaging means.
  • load spreading means may for example comprise wooden planks clipped to the respective means.
  • the platform comprises a ridge engaging means 1 in the form of a pair of U-shaped tubes 2 whose ends are cross-connected by rods 3 to which are clipped weight spreading planks 4.
  • a suspended ladder-like frame 5 Fixed to the engaging means 1 is a suspended ladder-like frame 5 having a plurality of cross-extending rungs 6. Connected between one of these rungs 6 and the engaging means 1 is a pair of bracing struts 7 which impart rigidity to the structure as hereinabove mentioned.
  • the platform itself consists of a frame 8 over which will be applied (but not shown) a plywood deck on which one or more workmen may stand. Guard rails 9 are fixed to frame 8 for obvious reasons.
  • the frame 8 is releasably connected at one end to the upper rung 6 of the frame 5 by means of snap hooks 20, and between its other end and the third rung down are provided a pair of telescopically extendable compression legs 10.
  • the lower ends of the legs 10 are releasably secured to the third rung by means of suitable clamps 21.
  • the frame 8 and legs 10 may be releasably clamped to other rungs 6 if desired to achieve a different height or configuration of the platform.
  • Load spreading planks 11 are clipped to the main members of the frame 5 to prevent or minimise damage to the roof cladding.
  • the scaffold platform is also able to be modified to suit different purposes. For example, for working lower down the roof pitch a further runged frame 5 may be connected to that shown and the platform itself connected to this further frame lower down. Again to raise the height of the man-supporting surface a small tower may be mounted thereon in place of the guard rails 9 with an access ladder leading to a trapdoor in the deck.
  • the scaffold platform disclosed is stable and strong, yet versatile in the differing levels of platform it allows. It may be constructed from light alloy tubing to be low in weight yet high in strength.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Movable Scaffolding (AREA)

Description

  • This invention relates to a scaffold platform which may be engaged with for example the ridge of a roof or a window opening to provide a working support surface adjacent thereto. A particular although not exclusive application of such a platform is to enable workmen to repoint repair or rebuild the tops of chimney stacks, but several other uses are envisaged such as working on the roof itself, on adjacent walls or even the erection of television aerials.
  • A scaffold platform according to the first part of claim 1 is known from GB-A-1,592,372.
  • According to the invention there is provided a scaffold platform comprising means for engaging a roof ridge, window opening or like horizontal edge, frame means suspended from the engaging means and comprising longitudinal elements interconnected by cross-extending members, a horizontally disposed platform means engaged with a first of said cross-extending members, and supporting leg means connected at one end thereof to the platform means and engaged at the other end thereof with a second of said cross-extending members, characterised in that the frame means is of ladder-like configuration and comprises a plurality of cross-extending members adapted for engagement with said platform means and leg means, and in that the platform means and leg means are releasably engaged with such members, such that the platform means and leg means may be engaged with different pairs of said cross-extending members whereby the height of the horizontal platform means may be varied.
  • In this way it is possible to construct a scaffold platform of substantial rigidity and strength yet which may be flexibly adaptable to different uses. Furthermore, the platform means and leg means may be engaged with different pairs of said cross-extending members whereby to alter the level of the platform means. The platform means itself is preferably provided with at least one guard rail on at least two sides thereof for the protection of men working thereon.
  • A further preferred feature of the invention is the provision of at least one and preferably two stabilising struts connected between the engaging means and one of said cross-extending members. This can considerably increase the rigidity of the scaffold platform and lessen any tendency to slide down the pitch of a roof which could happen if the engaging means tended to pivot with respect to the remainder of the platform.
  • The said leg means preferably comprises a pair of legs connected between the platform means and the respective member, and in a preferred arrangement these legs are telescopically extendable to allow for different configurations.
  • To prevent damage to fragile roof claddings such as slates or pantiles, load spreading means may be mounted on the frame means and preferably also on the engaging means. Such load spreading means may for example comprise wooden planks clipped to the respective means.
  • In order that the invention may be readily understood an embodiment thereof will now be described by way of example with reference to the accompanying drawing which shows a scaffold platform engaged on the roof of a building with certain parts thereof omitted for the sake of clarity.
  • The platform comprises a ridge engaging means 1 in the form of a pair of U-shaped tubes 2 whose ends are cross-connected by rods 3 to which are clipped weight spreading planks 4.
  • Fixed to the engaging means 1 is a suspended ladder-like frame 5 having a plurality of cross-extending rungs 6. Connected between one of these rungs 6 and the engaging means 1 is a pair of bracing struts 7 which impart rigidity to the structure as hereinabove mentioned.
  • The platform itself consists of a frame 8 over which will be applied (but not shown) a plywood deck on which one or more workmen may stand. Guard rails 9 are fixed to frame 8 for obvious reasons. The frame 8 is releasably connected at one end to the upper rung 6 of the frame 5 by means of snap hooks 20, and between its other end and the third rung down are provided a pair of telescopically extendable compression legs 10. The lower ends of the legs 10 are releasably secured to the third rung by means of suitable clamps 21. The frame 8 and legs 10 may be releasably clamped to other rungs 6 if desired to achieve a different height or configuration of the platform.
  • Load spreading planks 11 are clipped to the main members of the frame 5 to prevent or minimise damage to the roof cladding.
  • The scaffold platform is also able to be modified to suit different purposes. For example, for working lower down the roof pitch a further runged frame 5 may be connected to that shown and the platform itself connected to this further frame lower down. Again to raise the height of the man-supporting surface a small tower may be mounted thereon in place of the guard rails 9 with an access ladder leading to a trapdoor in the deck.
  • The scaffold platform disclosed is stable and strong, yet versatile in the differing levels of platform it allows. It may be constructed from light alloy tubing to be low in weight yet high in strength.

Claims (8)

1. A scaffold platform comprising means (1) for engaging a roof ridge, window opening or like horizontal edge, frame means (5) suspended from the engaging means (1) and comprising longitudinal elements interconnected by cross-extending members (6), a horizontally disposed platform means (8) engaged with a first of said cross-extending members (6), and supporting leg (1) means connected at one end thereof to the platform means and engaged at the other end thereof with a second of said cross-extending members (6), characterised in that the frame means is of ladder-like configuration and comprises a plurality of cross-extending members (6) suitable for engagement with said platform means (8) and leg means (10), and in that the platform means (8) and leg means (10) are releasably engaged with such members (6), such that the platform means (8) and leg means (10) may be engaged with different pairs of said cross-extending members (6) whereby the height of the horizontal platform means (8) may be varied.
2. A platform as claimed in claim 1 further comprising at least one guard rail (9) on at least two sides thereof.
3. A platform as claimed in claim 1 or 2 comprising at least one stabilising strut (7) connected between the engaging means (1) and one of said cross-extending members (6).
4. A platform as claimed any preceding claim wherein the leg means comprises a pair of legs (10) connected between the platform means and the respective cross-extending member.
5. A platform as claimed in claim 4 wherein the legs (10) are telescopically extendable.
6. A platform as claimed in any preceding claim wherein the means (1) for engaging a roof or ridge or the like comprises inverted substantially U-shaped members (2).
7. A platform as claimed in any preceding claim including load spreading means (11) mounted on the frame means (5) and on the engaging means (1).
8. A platform as claimed in claim 7 wherein the load spreading means comprises planks (11) secured to the frame means and engaging means.
EP84300351A 1983-01-20 1984-01-20 Scaffold platform Expired EP0117066B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838301485A GB8301485D0 (en) 1983-01-20 1983-01-20 Scaffold platform
GB8301485 1983-01-20

Publications (2)

Publication Number Publication Date
EP0117066A1 EP0117066A1 (en) 1984-08-29
EP0117066B1 true EP0117066B1 (en) 1986-09-10

Family

ID=10536595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84300351A Expired EP0117066B1 (en) 1983-01-20 1984-01-20 Scaffold platform

Country Status (3)

Country Link
EP (1) EP0117066B1 (en)
DE (1) DE3460637D1 (en)
GB (1) GB8301485D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676341A (en) * 1986-07-21 1987-06-30 Maurice Shaffstall Adjustable roof scaffold jack
GB2201716B (en) * 1987-03-03 1991-08-14 Edward Terry Reynolds Collapsible builders' staging
US5601154A (en) * 1993-08-06 1997-02-11 Eisenmenger; Gary W. Portable suspended roof scaffold system
GB2581126B (en) * 2018-12-10 2022-12-14 Loughran Joseph A roof platform system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR634786A (en) * 1927-05-21 1928-02-25 mobile scaffolding
FR691934A (en) * 1930-03-14 1930-10-28 Roof scaffolding system
FR1176421A (en) * 1957-06-03 1959-04-10 roof cleat ladder
US4179011A (en) * 1977-10-21 1979-12-18 Janus Morawski Roofing ladder and braces therefor
GB1592372A (en) * 1978-05-30 1981-07-08 Reynolds E T Collapsible builders stage

Also Published As

Publication number Publication date
DE3460637D1 (en) 1986-10-16
EP0117066A1 (en) 1984-08-29
GB8301485D0 (en) 1983-02-23

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