Arrangement for changing the lever ratio of a two-armed rocker l

Details Arrangement for changing the lever ratio of a two-armed rocker l Arrangement for changing the lever ratio of a two-armed rocker l

1992-05-22

1994-04-12

Crane, Daniel C.

Metal deforming

By plural tool-couples

With means to feed work between plural tool stations

74834, B21D 4305

Patent

active

053015355

ABSTRACT:
An arrangement for changing the lever ratio of a two-armed rocker lever, particularly for the transfer movements in a press. The rocker lever is pivotally connected in a lever arm and the starting movement is capable of being tapped by another lever arm. This arrangement includes a frame, a slide guide for the rocking bearing of the rocker lever, a control device, a rotation transmission device and a nut-spindle connection for the sliding movement of the slide guide relative to the rocker lever. The rocker lever, by means of the slide guide, is disposed in a pivot bearing of a support. The support is slidably guided in the frame. The support includes the nut of the nut-spindle connection for interacting with the spindle. The control device, rotation transmission device and the spindle are arranged in the frame, and a device for fixing the position of the pivot bearing in the rocker lever is connected with the rocker lever in an operatively connected manner.

REFERENCES:
patent: 2800179 (1957-07-01), Munchbach
patent: 3421378 (1969-01-01), Lorinc
patent: 4050670 (1977-09-01), Borg
patent: 4234107 (1980-11-01), Gernlein
patent: 4286474 (1981-09-01), McMahon
patent: 4702428 (1987-10-01), Kempster
patent: 4741195 (1988-05-01), Arai

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