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. 23, 2014
Filed:
Mar. 18, 2011
Applicants:
Keisuke Takeda, Kanagawa, JP;
Seiji Nakoshi, Kanagawa, JP;
Takashi Koshimizu, Kanagawa, JP;
Inventors:
Assignee:
Aida Engineering, Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 43/11 (2006.01); B21D 43/05 (2006.01);
U.S. Cl.
CPC ...
B21D 43/11 (2013.01); B21D 43/052 (2013.01); B21D 43/055 (2013.01);
Abstract
A breakage prevention mechanism includes a pair of arms which is synchronized and moves approximately parallel, and a crossbar bridged between the top end of the arms. Both end of the crossbar and the arm are connected pivotably around two axis. Both end of the crossbar are configured to be slidable against the arm in X axis direction. A plunger is placed between both end of the crossbar and arm, which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.