Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent
1996-12-19
1999-03-23
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Wall- or floor-attached
182113, 182136, E04G 120
Patent
active
058847251
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
THIS INVENTION relates to a scaffolding assembly and in particular, but not limited to a portable scaffolding assembly for use adjacent low-rise buildings including domestic and light industrial or commercial buildings.
BACKGROUND ART
Trestles carrying planks are commonly used to service domestic buildings by painters and bricklayers. The main disadvantage of these trestle and plank arrangements is that they make access to the upper portion of a building difficult and as they are free standing, are generally unsafe.
The present invention has as one object to alleviate at least to some degree the aforementioned problems associated with the prior art.
OUTLINE OF THE INVENTION
In one aspect therefore, the present invention resides in a portable scaffolding assembly comprising spaced uprights, upper building engagement means and a platform, the spaced uprights extending generally vertically and being spaced from a building or the like, each upright extending from the ground and having an upper building engagement means bridging between the building and the upright in predetermined spaced relationship relative to the building and the platform extending between the uprights.
In a preferred form there is provided a scaffolding assembly suitable for use on ground adjacent a low rise building of the type having a wall and roof structure supported by the wall, the scaffolding assembly comprising a plurality of uprights spaced along the wall structure and each upright being about the same distance from the wall structure, each upright having a lower end on the ground and an upper end adjacent the roof, building engagement means extending from the building to each upright to hold the upper ends of the uprights in fixed spaced relation to the building, adjacent uprights having respective carriages and means for independently raising or lowering the carriages incrementally in turn along the respective uprights, adjacent carriages pivotally supporting a platform therebetween and the platform extending from the uprights toward the wall structure.
Typically where it is desirable to carry out work on the roof of the building a safety fence extends about the upper ends of the uprights adjacent the roof.
The uprights can be any suitably rigid vertical members and typically lightweight hollow telescopic sections are employed. Typically, the upright sections are adjustably secured together to account for the various height differences from building to building or along the scaffolding assembly. Each upright is typically pivotally coupled to the building engagement means so that the building engagement means can be secured to the building at different angles relative to the uprights.
The building engagement means is typically a roof engaging means adapted to be coupled to a roof and bridge across to an upright. The building engagement means preferably allows limited vertical movement of the uprights relative to the building engagement means to account for site subsidence. In another form the building engagement means is a T-shaped wall mounting where the top of the T-shape extends along the wall.
The uprights and building engagement means are preferably releasably held together by catch means having a mouth adapted to receive an upright and automatically close in order to hold the upright, the catch having positive release means that must be actuated to release the upright.
The platform can be mounted to the uprights in any suitable fashion but is typically vertically adjustable. Typically, a cable and winch assembly is employed so that an operator can stand on the platform and winch the platform vertically up or down. The platform can extend horizontally, sideways either side of the uprights or can extend both sides of the uprights. The platform is preferably coupled to the uprights by a carriage travelling on each upright. The platform is preferably made from a plurality of planks that can be separated for transport purposes adjacent planks being held together by rails having back-to-bac
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Chin-Shue Alvin
Kookoala Pty Ltd
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