Press brake

Details Press brake Press brake

1981-03-25

1983-10-25

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72319, 72450, B21D 504

Patent

active

044111487

ABSTRACT:
A press brake comprises at least one driven bending tool, which is adapted to cooperate with a second bending tool. In order to provide a great latitude regarding the bending operations to be performed, the driven bending tool is driven by means of a four-bar linkage, which comprises two crank arms, which are rotatably mounted in a frame, and a link, which connects the crank arms and carries the driven bending tool. An adjusting drive is provided which is power-operable to displace the pivot connecting one of said crank arms to the frame or to change the length of one of said crank arms.

REFERENCES:
patent: 1135534 (1915-04-01), Kruse
patent: 3054437 (1962-09-01), Laxo
patent: 3561248 (1971-02-01), Bessho
patent: 4242898 (1981-01-01), Salvagnini

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