Stanchion assembly

Fire escape – ladder – or scaffold – Pitched roof conforming scaffold

Patent

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Details

182113, 248228, 2482314, 256 59, B21F 2700, E04H 1714

Patent

active

053538919

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to frame buildings, especially steel framed buildings, and is particularly concerned with an adjustable stanchion assembly for a frame building and capable of carrying a structure on the building.
Structures which may be advantageously supported on a building, or a building construction, include especially a safety barrier, for example, to prevent or assist in preventing construction site workers accidentally falling from the construction, and display signs. A safety barrier may advantageously be able to have connected to it a fall arrest system whereby someone connected to the safety barrier may be protected from serious injury in an accidental fall. In order to provide adequate support, it is necessary that a stanchion assembly be securely connected to the building and readily appropriate for use in different situations including on different frame buildings. It is also advantageous if the stanchion assembly can be readily removed from the building, for example, in the case of a stanchion assembly associated with a safety barrier, when the building construction has been substantially completed.
U.S. Pat. No. 3,920,221 discloses one stanchion assembly which is suitable for use only on the upper flange of an I-beam. The major portion of the stanchion assembly is intended to be encased in concrete when concrete is poured onto the I-beam.
U.S. Pat. No. 4,666,131 proposes another stanchion assembly in which a clamp is provided to secure the stanchion to a roof beam from the underside so that the clamp may be removed from the beam when the roof has been completed. The clamp may be readily removed from the beam by simple unscrewing of a pair of clamping screws.
According to the present invention there is provided an adjustable stanchion assembly for a frame building, comprising a support post capable of receiving a structure to be carried by the assembly and secured to a clamping mechanism comprising an elongate connection member and at least two clamps which are selectively relatively adjustable along the elongate connection member and which comprise means for engaging the clamps with one or more of the frame members of the frame building, each said clamping means comprising jaws having a mouth of restricted maximum width and a throat portion behind the mouth having a dimension substantially parallel to the width of the mouth which is greater than said maximum width whereby an L-shaped section of the frame member having a distal leg of greater height than the maximum width of the mouth can only be received in and removed from the jaws by relative rotation of the clamp around said L-shaped section.
The stanchion assembly of the present invention is particularly adapted for use with, for example, C- or Z-shaped purlins or girts which have a lip at each end defining the distal leg of an L-shaped section of the purlin or girt. However, the stanchion assembly is also suitable for use with other shapes of frame member, including I-beams, provided they have a flange which can be received in at least the mouth of the clamps.
By the term "frame building" is meant a building or building construction having at least one frame member to which the adjustable stanchion assembly of the invention can be affixed. Thus, for example, only the roof or floor construction of the building may be frame-like or the whole building may comprise a frame construction.
The stanchion assembly may be connected to one or more frame members of a wall structure so that the elongate connection member extends upright or the elongate connection member may be clamped to one or more floor or roof frame members which extend horizontally or otherwise. Generally, the support post of the stanchion assembly will extend upwardly from the clamping mechanism, but in some circumstances it may be desirable to have it projecting downwardly or outwardly from the building.
The support post conveniently is adjustably secured to the clamping mechanism, Preferably at one end, for example by a sleeve construction and a locking device, a

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patent: 4666131 (1987-05-01), Kettelkamp, Sr. et al.

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