Abstract: A heavy-duty machine, such as an excavator, having a boom mounted for motion in a generally vertical arc, a stick mounted onto the distal end of the boom, and a tool mounted at the distal end of the stick. The stick is connected to the boom by a quick-disconnect coupling including a coupling member that is rockably mounted at the distal end of the boom and a coupling member mounted at the proximal end of the stick. A grab hook on the boom coupling member is used to pick up the stick by hooking onto a grab pin of the stick coupling member. A set of rack gear teeth on the boom coupling member intermesh with a corresponding set of rack gear teeth on the stick coupling member, and these eliminate play between the stick and boom.
Type:
Grant
Filed:
April 27, 1992
Date of Patent:
April 6, 1993
Assignee:
Gilmore Transporation Services, Inc.
Inventors:
Charles P. Gilmore, Jr., James J. Maynard