Metalworking press

Details Metalworking press Metalworking press

1977-10-20

1979-02-06

Lanham, C. W.

Metal deforming

With means to drive tool

Including gear-actuated tool support

72450, B21J 918

Patent

active

041377494

ABSTRACT:
The press is of the type having a press housing and a press ram which can be moved backwards and forwards by means of two planetary gears. The planetary gears have two identical, coaxially arranged, fixed internal gear rims with an external gear arranged in each of them with a pitch diameter which is half the pitch circle of the internal gear. The housing is provided with a guide for the press ram. A bearing disc is connected to the external gear, has its bearing axis intersecting the contact point between the two pitch circles, and is at least indirectly pivotable in the ram. A driving gear is positioned coaxially to the internal gear rim. The improvement comprises that the driving gear is arranged between the two external gears mounted in pivotable manner in the driving gear and that a bearing for the driving gear is provided on the internal gear rim.

REFERENCES:
patent: 2185096 (1939-12-01), Treer
patent: 2378062 (1945-06-01), Byerlein
patent: 2514933 (1950-07-01), Byerlein

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