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.

Date of Patent:
Apr. 24, 2012

Filed:

May. 09, 2007
Applicants:

Takao Sakai, Fujisawa, JP;

Makoto Ueda, Naka•gun, JP;

Akiyoshi Kurihara, Quingdao, CN;

Eiji Nakagawa, Chigasaki, JP;

Yusuke Kinpara, Chigasaki, JP;

Inventors:

Takao Sakai, Fujisawa, JP;

Makoto Ueda, Naka•gun, JP;

Akiyoshi Kurihara, Quingdao, CN;

Eiji Nakagawa, Chigasaki, JP;

Yusuke Kinpara, Chigasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 55/21 (2006.01);
U.S. Cl.
CPC ...
Abstract

An endless track link that is able to reduce stress concentrations and to improve efficiency of an assembling process of the endless track link is detailed. A stress reinforcing part is formed in the region in which stress concentrations are generated in a window area. The reinforcing part extends in a direction apart from a track shoe and includes an extended part of a through-hole into which a track shoe connecting bolt is inserted. A female thread for engaging with the track shoe connecting bolt is formed at the extended part of the through-hole.


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