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. 11, 2012
Filed:
Apr. 30, 2008
Atsuyuki Kikuchi, Hitachinaka, JP;
Tsukasa Suzuura, Hitachinaka, JP;
Hiroshi Haga, Hitachinaka, JP;
Kuniaki Kanbe, Hitachinaka, JP;
Tomoya Ikeda, Hitachinaka, JP;
Atsuyuki Kikuchi, Hitachinaka, JP;
Tsukasa Suzuura, Hitachinaka, JP;
Hiroshi Haga, Hitachinaka, JP;
Kuniaki Kanbe, Hitachinaka, JP;
Tomoya Ikeda, Hitachinaka, JP;
Hitachi Koki Co., Ltd, Tokyo, JP;
Abstract
A reciprocating tool () includes a housing (), a driving source (), a reciprocation conversion unit (), —and a vibration reduction mechanism (). The driving source is accommodated in the' housing. The reciprocation conversion unit () is supported by the housing and is configured to convert a driving force of the driving source into a reciprocating motion for providing a tool bit () movably supported to the housing with a reciprocating motion. The vibration reduction mechanism () includes a shaft (), a weight (), a support member (), and a urging portion (). The shaft i()s supported by the housing and extending in a direction perpendicular to directions of the reciprocating motion of the tool bit () t and has an axis. The weight () is located away from the shaft () and is swingable in a swinging direction. The support member () swingably supports the weight () about the axis of the shaft (). The urging portion () urges the weight () toward a prescribed position of the weight in the swinging direction with respect to the housing.