The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2003
Filed:
Apr. 19, 2002
Komatsu Ltd., Tokyo, JP;
Abstract
A pressure receiving surface ( ) having a diameter gradually decreasing in an axially inward direction is formed at an outer end portion of a pin ( ), whereas a pressing portion ( ) is formed at a circumferential edge of an opening of a pin insertion hole ( ) of a link ( ). A retaining ring ( ) is formed with a friction surface ( ) to be press-contacted to the pressure receiving surface ( ) when a force is applied from the pressing portion ( ) upon development of a relative movement in a disengaging direction. The retaining ring ( ) and the pressure receiving surface ( ) share a greater area of contact than in the prior art, providing sufficient friction. This makes possible to provide a fastening structure of the link and the pin of a crawler belt which can be assembled by simple operation at a low cost, without requiring a high machining accuracy, and thus can be manufactured at a low cost.