发明名称 ELECTRICAL POWER TOOL
摘要 ?n electrical power tool (1) includes a housing (10,20,30) , an electrical motor (21) , a motion conversion mechanism (36) , a counterweight holding member (73) , a counterweight (74) , and support members (71,72) . The electrical motor (21) is accommodated in the housing (10,20,30) . The motion conversion mechanism (36) is configured to convert a rotary motion of the electrical motor (21) into a reciprocation motion. The counterweight holding member (73) extends in a direction perpendicular to directions of the reciprocation motion and is capable of being elastically deformed in the directions of the reciprocation motion. The counterweight (74) is supported by the counterweight holding member (73) and is capable of reciprocating in the directions of reciprocation motion together with the counterweight holding member (73) . The support members (71,72) are positioned away from the counterweight (74) by a predetermined distance for supporting the counterweight holding member (73) to the housing (10,20,30) . The counterweight (74) is interposed between or among the support members (71,72) .
申请公布号 WO2007102449(A1) 申请公布日期 2007.09.13
申请号 WO2007JP54135 申请日期 2007.02.27
申请人 HITACHI KOKI CO., LTD.;SATOU, SHINICHIROU;SUZUURA, TSUKASA;OHTSU, SHINKI 发明人 SATOU, SHINICHIROU;SUZUURA, TSUKASA;OHTSU, SHINKI
分类号 B25D17/24;B25F5/00;F16F7/116 主分类号 B25D17/24
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