发明名称 ELECTRIC TOOL
摘要 PROBLEM TO BE SOLVED: To provide a high-reliability electric tool that modifies the balancing amount of a rotor for a brushless motor without generating any splash of an adhesive material and without producing defective pieces caused due to the balancing amount of the rotor. SOLUTION: The electric tool includes a motor housing part that includes a tubular housing part, accommodates a brushless motor and includes an inner circumferential part extending to the axial direction of a rotation axis for the brushless motor, and a drive transmission housing part for accommodating a drive transmission mechanism part formed continually at one end of the motor housing part. The brushless motor incorporates a tubular stator having an outer circumferential part and an inner circumferential part that extend to the direction of a rotation axis, and a rotor arranged concentrically within the tubular stator, an adhesive material for the balancing modification being embedded into the rotor. COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2009240140(A) 申请公布日期 2009.10.15
申请号 JP20080086590 申请日期 2008.03.28
申请人 HITACHI KOKI CO LTD 发明人 SHOJI JUNICHI;OMORI KAZUHIRO;KOMURO YOSHIHIRO;MORITA KAZUHIKO
分类号 H02K7/04;B25F5/00;H02K21/14;H02K29/00 主分类号 H02K7/04
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