Safety cover for automotive service pits

Flexible or portable closure – partition – or panel – With hood – canopy – shield storage chamber – or outrigged... – For plural strip – slat – or panel and/or pleating type

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Details

160118, 160201, E06B 926

Patent

active

049662171

ABSTRACT:
A safety cover 10 for automotive service pits 1 is constructed of square cross section hollow support members 11 welded to alternate links of double pitched roller chain segments 15. Cover 10 is divided into two halves wherein each half has support members 11 perpendicularly welded to two lengths of chain 15 at each end of support members 11. Support members 11 are further disposed in parallel spaced relation one to the other. Roller chain segments 15 are longitudinally supported at the top edges of the pit side walls 5 by opposing segments of C-channel 12. U-shaped bends 18 are provided in the lower lip 17 of opposing C-channel segments 12 and are disposed at, at least, one end which is adjacent an end wall 6 of automotive service pit 1. U-shaped bends 18 provide a receiving pocket for receiving the double pitched roller chain 15 and connecting support members 11 when cover 10 is slid into the open position.
C-channel 12 and double pitched roller chain 15 are constructed of suitable materials such that the relative coefficient of friction between roller chain 15 and C-channel 12 inhibits sliding of the cover with the addition of any weight, e.g. a person standing on the cover.

REFERENCES:
patent: 2457240 (1948-12-01), Jorgensen
patent: 3280888 (1966-10-01), Davis
patent: 4341263 (1982-07-01), Eyerle
patent: 4628646 (1986-12-01), Eyerle
patent: 4662420 (1987-05-01), Hirao

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