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:
Sep. 25, 2012
Filed:
May. 23, 2008
Kouji Katou, Tokyo, JP;
Terufumi Hamano, Tokyo, JP;
Yoshitaka Otsuka, Tokyo, JP;
Akira Teranishi, Tokyo, JP;
Kazuya Sakamaki, Tokyo, JP;
Kouji Katou, Tokyo, JP;
Terufumi Hamano, Tokyo, JP;
Yoshitaka Otsuka, Tokyo, JP;
Akira Teranishi, Tokyo, JP;
Kazuya Sakamaki, Tokyo, JP;
Max Co., Ltd., Tokyo, JP;
Abstract
A hammering tool includes, within its tool main body, a piston which reciprocates by using a motor as its drive force, a hammering member which carries out its hammering operation in linking with the reciprocating motion of the piston, and an intermediate member which transmits a hammering force of the hammering member to a top end tool mounted on the top end of the tool main body. The tool main body further includes a measuring device which measures a hammering state of the hammering member and a control device which controls the number of rotations of the motor. The control device, according to measurement results of the measuring device, determines the limit number of times of hammering where the hammering member becomes unable to follow the reciprocating motion of the piston, and thus controls the number of rotations of the motor.