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:
Dec. 21, 2004
Filed:
Oct. 09, 2003
Komatsu Ltd., Tokyo, JP;
Abstract
It is possible to achieve a light structure by making a part of a core bar thin and to prevent an elastic body from strain deforming by a smooth rib reinforcing portion from which an edge portion of the core bar does not protrude. It is possible to achieve a strength even when piercing a hole in the core bar and to prevent the elastic body from being cut by an edge portion of a hole. Accordingly, in a core bar ( ) of an elastic body track shoe fastened to each pair of joint links of a crawler by bolts, recess portions ( ) formed in a substantially inverse-trapezoidal shape or recess portions ( ) formed in a substantially inverse-trapezoidal shape toward front end portions are formed in non-grounded surface sides of right and left wing portions in a direction of a crawler width. A recess portion ( ) formed in a substantially inverse-trapezoidal shape or a through hole ( ) may be formed in a center portion.