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:
May. 27, 2008
Filed:
Mar. 15, 2007
Masayuki Shida, Machida, JP;
Masayuki Shida, Machida, JP;
Shoei Co., Ltd., , JP;
Abstract
A helmet in which a subsidiary cap portion hardly pivots forward about an axial support means thereof as a fulcrum to undesirably move upward accidentally when a comparatively large impact acts on the helmet. A subsidiary cap portion locking mechanism which locks the subsidiary cap portion at a lower position includes a lock pin on a main cap portion and a locking recess for a lock lever on the subsidiary cap portion. While the subsidiary cap portion is in a backward state, an angle that a third straight line, which extends in a direction along which the lock pin starts to disengage from the locking recess, forms with a second straight line obtained by extending a first straight line, which extends from the axial support means of the subsidiary cap portion to the lock pin, falls within a range between an angle which is upward from the second straight line by 65° (preferably 40° and more preferably 15°) and an angle which is downward from the second straight line by 85° (preferably 60° and more preferably 35°).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile