Patent ID: 6144121
Filing Date: 2000-11-07
Classification: B25F,H01H

Abstract:
A motor-driven tool having a grip on which a switch is placed, said grip being connected to a central portion of a cylindrical housing which houses both a motor in a rear end of the cylindrical housing and a decelerator which decelerates the motor output in a front end of said cylindrical housing, and a deceleration rotation output shaft in the front of the housing;wherein said motor includes a housing, an axial flow fan for air intake in a rear end thereof and a centrifugal fan for exhaust in a front end thereof, said motor housing has an intake air opening in a rear side thereof and an exhaust air opening in a front side surface thereof,wherein said motor is generally cylindrical and includes an output shaft extending from the front end thereof and into engagement with the decelerator, and the front end of the motor housing is closed by the decelerator; andsaid cylindrical housing includes an intake opening that connects to said intake air opening in the rear side of said motor housing and an exhaust opening that connects to said exhaust air opening of said motor housing at the position where the front of the motor is located.