Adjustable trestle sawhorse

Details Adjustable trestle sawhorse Adjustable trestle sawhorse

1995-09-25

1996-10-01

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Unitary foldable, rigid scaffold or ladder

Trestle

182225, B27B 2100

Patent

active

055604498

ABSTRACT:
An adjustable sawhorse for contemporaneously adjusting both the height and angle of inclination of the support member. The sawhorse utilizes a disk-jaw slip clutch composed of a shaft carrying a pair of inner and outer disks in slideable and rotational relationship. The shaft extends through a transverse cavity in the support member and the support member is interposed intermediately of the disks. A plurality of radially extending jaws extend from the transverse cavity openings in the support member sidewall surfaces for engagement with corresponding radially extending jaws on the inner disks' engagement surface with the support member. Similarly, the outer disks have radially extending jaws which couple with like constructed jaws on the engagement faces of the outer disks. By exertion of a lateral compressive force, the disks and support member may be releasably locked in fixed rotational relationship. A first truss leg extends radially from the inner disks and a second truss leg extends radially from the outer disks to stabilize the sawhorse.

REFERENCES:
patent: 374107 (1887-11-01), Zeigler
patent: 1001344 (1911-08-01), Boyer
patent: 4917341 (1990-04-01), Pirchio

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