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:
Nov. 07, 2017
Filed:
Mar. 19, 2013
Hitachi Koki Co., Ltd., Tokyo, JP;
HITACHI KOKI CO., LTD., Tokyo, JP;
Abstract
An impact tool includes a casing () supporting a tip tool (), a piston () provided in the casing (), an electric motor () provided in the casing (), a motion converting mechanism () provided in the casing (), and a vibration reducing mechanism () provided in the casing (). The vibration reducing mechanism () has a supporting member, which is swingable with using a fixing position (J) as a supporting point and a weight () attached to a free end side of the supporting member. In a plane including a center line (C), the gravity center (H) of the weight () and the gravity center (G) of the casing () are disposed at mutually different locations, and the fixing position (J) is disposed on the side of the gravity center (G) relative to the center line (C).