US 4,431,087 AGranted

Guide rail clamping method and assembly

AssigneeWestinghouse Electric Corp.

InventorHerman S. Karol

Life of this patent

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Abstract

A guide rail clamping method and assembly including a rail bracket attached to a building, a tapped intermediate support member, rail clips, bolts and nuts. The bolts are turned to tightly clamp the guide rail between the rail clips and intermediate support member, to create a unitary assembly, and the nuts are turned on the bolts to tightly clamp the unitary assembly to the rail bracket. This enables the guide rails to be firmly clamped by their rail clips while the nuts are loosened to permit the guide rail to be accurately positioned in both the fore-aft direction, and B.G. direction.

Claims8

Dependent claims

A guide rail clamping assembly for fixing rail clips to an elevator guide rail while facilitating both fore-aft and between guide (BG) adjustement of the guide rail relative to a support structure, comprising:

a first mounting member fastened to the supporting structure, said first mounting member including elongated opening means,
a second mounting member having first and second tapped openings therein, said second mounting member being adjacent to said first mounting member, with its first and second tapped openings aligned with the elongated opening means,
a guide rail section having first and second flanges, the backs of which contact said mounting member,
first and second rail clip members engaging the first and second flanges, respectively, of said guide rail section, with said first and second rail clip members including an opening aligned with the first and second tapped openings, respectively, of said second mounting member,
first and second bolts extending through the openings in the first and second rail clip members, respectively, and threadably, engaging the first and second tapped openings, respectively, in the second mounting member, to tightly clamp and thereby lock the first and second flanges of the guide rail section between the second mounting member and the first and second rail clip members, to provide a first clamping function associated with the first and second bolts which prevents relative motion between said second mounting member, said guide rail section, said first and second rail clip members, and said first and second bolts, including the prevention of any relative motion in the axial direction of said first and second bolts,
said first and second bolts further extending through the elongated opening means in the first mounting member, permitting fore-aft and BG adjustment of the guide rail section without releasing the lock on the first and second flanges created by the second mounting member, the first and second rail clip members, and the first and second bolts,
and first and second nuts threadably engaged with the first and second bolts, respectively, to clamp the rail clip members, guide rail section, and second mounting member, to the first mounting member and provide a second clamping function associated with said first and second bolts, which is independent of the first clamping function.

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Dependencies are inferred from the claim text.

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Abstract

a first mounting member fastened to the supporting structure, said first mounting member including elongated opening means,
a second mounting member having first and second tapped openings therein, said second mounting member being adjacent to said first mounting member, with its first and second tapped openings aligned with the elongated opening means,
a guide rail section having first and second flanges, the backs of which contact said mounting member,
first and second rail clip members engaging the first and second flanges, respectively, of said guide rail section, with said first and second rail clip members including an opening aligned with the first and second tapped openings, respectively, of said second mounting member,
first and second bolts extending through the openings in the first and second rail clip members, respectively, and threadably, engaging the first and second tapped openings, respectively, in the second mounting member, to tightly clamp and thereby lock the first and second flanges of the guide rail section between the second mounting member and the first and second rail clip members, to provide a first clamping function associated with the first and second bolts which prevents relative motion between said second mounting member, said guide rail section, said first and second rail clip members, and said first and second bolts, including the prevention of any relative motion in the axial direction of said first and second bolts,
said first and second bolts further extending through the elongated opening means in the first mounting member, permitting fore-aft and BG adjustment of the guide rail section without releasing the lock on the first and second flanges created by the second mounting member, the first and second rail clip members, and the first and second bolts,
and first and second nuts threadably engaged with the first and second bolts, respectively, to clamp the rail clip members, guide rail section, and second mounting member, to the first mounting member and provide a second clamping function associated with said first and second bolts, which is independent of the first clamping function.

4 more elements