Scaffold unit

Inactive Publication Date: 2018-05-03
SALITA IP PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a scaffold unit that solves some of the problems of previous versions or provides a useful option for consumers.

Problems solved by technology

This can be time-consuming and can add to the cost of construction.
This patent states that such conventional scissor mechanisms possess at least three inherent disadvantages when employed as a lifting mechanism.
One disadvantage is the fact that the effective supported base area defined by the scissor ends decreases as the platform is raised, resulting in progressively less stability at higher elevations.
The second disadvantage is the fact that the beams which comprise such a scissor linkage are subjected to bending loads and must therefore be relatively stiff to support loads.
A third disadvantage is that the scissor linkages must be relatively long to accomplish high lift operations if done in one stage.
Such long linkages necessitate a large and cumbersome storage pedestal chassis.

Method used

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Examples

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Embodiment Construction

[0124]Persons skilled in the art will appreciate that the drawings have been provided for the purposes of illustrating preferred embodiments of the present invention. Therefore, it will be understood that the present invention should not be considered to be limited solely to the features as shown in the attached drawings.

[0125]FIGS. 1 to 3 show various views of a scaffold unit in accordance with an embodiment of the present invention. The scaffold unit 10 shown in FIGS. 1 to 3 is shown in the lowered position. The scaffold unit 10 can be expanded from the position shown in FIGS. 1 to 3 to a raised position or an expanded position as shown in FIGS. 8 to 10. FIGS. 5 to 7 show the scaffold unit 10 in a partly raised position. It will be appreciated that the scaffold unit 10 can also be moved (or retracted or lowered) from the raised position shown in FIGS. 8 to 10 back to the lowered position shown in FIGS. 1 to 3.

[0126]The scaffold unit 10 comprises three support frames 12, 14, 16. Su...

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PUM

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Abstract

An extendible scaffold unit comprises at least two support platforms or two support frames (12, 14, 16), at least one of the support platforms or support frames (12, 14, 16) being movable between a lowered position and a raised position, a plurality of scissor linkages (35, 36, 37) linking one support platform or support frame (12, 14, 16) with a next support platform or support frame (12, 14, 16), each of the scissor linkages (35, 36, 37) including a plurality of legs (26, 28, 30, 32), each scissor linkage having a leg pivotally connected to or near a corner of one of the support platforms or support frames and a leg pivotally connected to or near a corner of a next support platform support frame, wherein a leg is pivotally connected at or near each corner of a support platform or support frame. By providing a leg pivotally connected at or near each corner of a support platform or support frame, the support platform or support frame is supported at or near each corner when in the raised position. This provides a stronger, more stable and more secure support to the platform / frame.

Description

TECHNICAL FIELD[0001]The present invention relates to a scaffold unit. More particularly, the present invention relates to a scaffold unit that can be moved from a lowered or retracted configuration to a raised or expanded configuration.BACKGROUND ART[0002]Scaffolding is widely used in the building and construction industries. Conventional scaffolding is erected from a number of separate components. Typically, a number of posts or rods are fastened together using brackets and bolts to form the scaffolding framework, with support boards or planks being placed on the scaffolding framework to form walkways or work platforms. Erection of conventional scaffolding requires that all of the components be delivered to a building site. A scaffolding crew will then erect the scaffold. This can be time-consuming and can add to the cost of construction.[0003]Some effort has been made in the past to develop scaffold units in which the work platforms can be moved between a lowered position and a r...

Claims

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Application Information

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IPC IPC(8): E04G1/22
CPCE04G1/22B66F11/042E04G1/24E04G1/34E04G5/007E04G5/14E04G5/142E04G5/16
InventorFINLAY, GREGORYDOLJANIN, PETER LAURENCE
OwnerSALITA IP PTY LTD