发明名称 ELECTRIC POWER TOOL
摘要 An electric power tool capable of suppressing damage to a fan housed in a housing to cool a motor due to foreign matter without increasing the number of parts. An impact driver includes a motor, a centrifugal fan attached to an output shaft of the motor to cool the motor, an annular air collecting member disposed between the motor and the centrifugal fan to collect cooling air by the centrifugal fan, a housing that houses the motor, the centrifugal fan, and the air collecting member, and ventilation windows formed in the housing to communicate between the inside and the outside of the housing on the outer side of the centrifugal fan. The air collecting member is provided with wall bodies positioned on the inner side of the ventilation windows.
申请公布号 US2015027743(A1) 申请公布日期 2015.01.29
申请号 US201214373228 申请日期 2012.12.06
申请人 MAKITA CORPORATION 发明人 Kumagai Ryunosuke
分类号 B25F5/00;B25F5/02 主分类号 B25F5/00
代理机构 代理人
主权项 1. An electric power tool comprising: a housing; a motor housed in the housing; a centrifugal fan housed in the housing and attached to an output shaft of the motor to cool the motor; an annular air collecting member housed in the housing and disposed between the motor and the centrifugal fan to collect cooling air by the centrifugal fan; a ventilation window formed in the housing to communicate between inside and outside of the housing on an outer side of the centrifugal fan; and a wall body provided on the air collecting member and positioned on an inner side of the ventilation window.
地址 Anjo-shi, Aichi JP