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. 01, 2015
Filed:
Apr. 19, 2011
Tomoyuki Ota, Anjo, JP;
Masanori Furusawa, Anjo, JP;
Ken Yamauchi, Anjo, JP;
MAKITA CORPORATION, Anjo-Shi, JP;
Abstract
An effective technique is provided for rationally clamping and holding various kinds of tool bits which can be selectively replaced with each other and attached to the driving shaft, in a power tool The power tool includes a driving shaftfor driving a tool bitA orB which is arbitrarily selected from various kinds of tool bits, a first clamping elementprovided on the driving shaftand a second clamping elementA,B provided separately from the driving shaftand can be fixed to the driving shaft. The selected tool bitA,B is clamped and held between the first clamping elementand the second clamping elementA,B. Various kinds of the tool bitsA,B have holesformed according to the kind of the tool bit, and either one of the first clamping elementand the second clamping elementA,B has various kinds of protruding engagement partsappropriate to the kind of the tool bitA,B and engaged with the holesformed according to the kind of the tool bitA,B.