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:
Apr. 24, 2012
Filed:
Dec. 19, 2005
Shigeo Hirose, Shinagawa-ku, JP;
Shingo Tsukui, Toyohashi, JP;
Shigeo Hirose, Shinagawa-ku, JP;
Shingo Tsukui, Toyohashi, JP;
Tokyo Institute of Technology, Tokyo, JP;
Topy Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A crawler beltincludes first regions and second regions alternately arranged in a circumferential direction thereof. The first region has at least one first tread lugand the second region has at least one second tread lug. The first tread lughas high flexural rigidity and is not easily bent and the second tread lughas low flexural rigidity and is easily bent. The first tread lugcatches on an upper end of a high step or bump S with the second tread lugin a bent condition, thus allowing the crawler unit to move over the step or bump.