US Patent 7637328 Electrical power tool having vibration control mechanism
Patent 7637328 was granted and assigned to Hitachi on December, 2009 by the United States Patent and Trademark Office.
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An electrical power tool includes a housing, an electrical motor, a motion conversion mechanism, a weight-supporting member, a counterweight, and a first supporting member and a second supporting member. The first supporting member and the second supporting member are each provided on the housing for supporting the weight-supporting member to the housing. The weight-supporting member has a first connecting part and a second connecting part supported by the first supporting member and the second supporting member, respectively; and an elastically deforming part. The elastically deforming part is positioned between the first connecting part and the second connecting part and has a mounting part for mounting the counterweight. The elastically deforming part includes a portion having a smaller cross-sectional area than each cross-sectional area of the first connecting part and the second connecting part.
US Patent 07637328 Electrical power tool having vibration control mechanism US Patent 7637328 Electrical power tool having vibration control mechanism
US Patent 07637328 Electrical power tool having vibration control mechanism
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