Automotive body and frame repair device

Metal deforming – With means to drive tool – With means to permit tool positioning

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Details

72705, B21D 112

Patent

active

048132640

ABSTRACT:
Apparatus for straightening automotive bodies and frames. The device includes a base and a hollow column within which an hydraulic cylinder is positioned. A top cap is applied to the column and includes a rotatable guide pulley about which a main tension chain passes for connection with an end of the hydraulic cylinder. A movable pulley housing is slidably carried along the column and includes a second guide pulley and a chain guide to guide a chain in a substantially horizontal direction outwardly from the movable pulley housing. A pair of outwardly extending arms are carried on another movable housing and include floating links on each lateral bar to permit the separate application of pulling forces independent of the main tension chain and along a line that does not pass through the column axis. The lateral arms can also be provided on the movable pulley housing. The disclosed structure permits the application of a plurality of pulling forces on an automotive frame or body, thereby permitting straightening operations to be performed without the necessity for repeatedly moving the column from one position to another in order to apply individual single pulling forces.

REFERENCES:
patent: 3340720 (1967-09-01), Chartier
patent: 3888100 (1975-06-01), Chisum
patent: 4175420 (1979-11-01), Kuhn
patent: 4398410 (1983-08-01), McWhorter et al.
patent: 4501136 (1985-02-01), Celette
patent: 4720991 (1988-01-01), Kuhn
patent: 4747579 (1988-05-01), Rich

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