Floor puller to straighten a bent member

Details Floor puller to straighten a bent member Floor puller to straighten a bent member

1988-02-10

1989-06-06

Larson, Lowell A.

Metal deforming

With means to drive tool

With means to permit tool positioning

72705, B21D 0112

Patent

active

048360104

ABSTRACT:
A floor puller to straighten a bent member such as bent portions on an auto body, which comprises a base and an upright post that supports a pulling mechanism and which can be anchored to the floor while the pulling mechanism straightens the item that has been bent. The pulling mechanism is carried on a sleeve which slides on the post to any desired height where it is then secured, and the sleeve is rotatable on the support post. The pulling mechanism includes an elongated slide member having a pulling end to which a pull chain is connected for pulling on the bent member, and an opposite operating end connected to the pressure chamber of a hydraulic cylinder. The ram of the hydraulic cylinder is connected to a coupling member on the sleeve, and when the ram is extended the slide member is forced rearwardly to pull the bent member into its original straightened position. The anchor connecting member is also secured to the sleeve, for connection of an anchor chain whose opposite end is connected to an anchor ring or anchor bolt on the floor. The slide member, the coupling member and the anchor connecting member are all pivotally mounted on the sleeve, and the sleeve is rotatably mounted on the post. This enables the entire pulling mechanism to contiually orient itself in a straight line with the bent object in the direction of pull. Since the entire pulling mechanism is mounted on a sleeve, it is easy to assemble on the support post and it also permits mounting of two sleeves and pulling mechanisms on the same support post which is desirable for certain straightening and body repair operations.

REFERENCES:
patent: 3340720 (1967-09-01), Chartier
patent: 3398565 (1968-08-01), Whitney
patent: 3492855 (1970-02-01), Wylie
patent: 3581547 (1971-06-01), Estigarribia
patent: 3612482 (1971-10-01), Eck
patent: 3955397 (1976-05-01), Meis
patent: 4501136 (1985-02-01), Celette
patent: 4712417 (1987-12-01), Jarman et al.

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