Trip mechanism for ground working implement

Details Trip mechanism for ground working implement Trip mechanism for ground working implement

1974-12-23

1976-08-03

Pinkham, Richard C.

Earth working

Overload shifting

172266, A01B 6104

Patent

active

039723747

ABSTRACT:
A spring bias safety trip mechanism for holding a ground working tool in a fixed position with respect to a support frame is disclosed herein. The spring bias safety trip mechanism consists of a plurality of links that are interconnected in such a manner that the links act as a rigid bar between the frame and standard and collapse when excessive forces are encountered by the standard. The spring biased linkage system is designed to eliminate the need for large springs that must produce sufficient forces equal to the normal forces encountered during the normal earthworking operation.

REFERENCES:
patent: 967093 (1910-08-01), Waterman
patent: 987604 (1911-03-01), Thomas
patent: 1207162 (1916-12-01), Grayson
patent: 2679792 (1954-06-01), Sheppard
patent: 3493055 (1970-02-01), Peursem
patent: 3765492 (1973-10-01), Irwin

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