Overload safety device in a press

Details Overload safety device in a press Overload safety device in a press

2006-04-11

2006-04-11

Banks, Derris H. (Department: 3725)

Presses

Safety device

Means to disable or to forestall power to the press

C100S269180, C100S270000, C072S432000

Reexamination Certificate

active

07024991

ABSTRACT:
In an overload safety device in a press, having a driving device with a drive shaft, a slide carrying out an oscillating movement and a connecting rod which connects the drive shaft with the slide and has a large and a small eye, the connecting rod is provided with a pressure element disposed displaceably in the longitudinal direction of the connecting rod. The pressure element acts at least indirectly upon a fluid such that, when a certain force acts upon the connecting rod, a pressure increase occurs in the fluid. The fluid is guided to a pressure limiting valve which, when a predetermined pressure is exceeded, causes an interruption of the slide movement.

REFERENCES:
patent: 3190141 (1965-06-01), Schlatter et al.
patent: 3892143 (1975-07-01), Kleister et al.
patent: 4030336 (1977-06-01), Grigorenko et al.
patent: 4289066 (1981-09-01), Proga
patent: 5638748 (1997-06-01), Daniel
patent: 6457406 (2002-10-01), Yonezawa et al.
patent: 2242067 (1981-11-01), None
patent: 3407317 (1992-03-01), None

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