Document Type and Number:
Japanese Patent JPS4977291
Kind Code:
A
Abstract:
An electric impact wrench wherein the output shaft of the electric motor which is installed in a synthetic plastic housing can rotate the tool holder through the medium of a two-speed transmission and the output shaft can cause a plunger to repeatedly strike against the tool holder in response to rotation of a crankshaft which can receive torque from the output shaft. The two-speed transmission has several spur gears and the output shaft can drive the crankshaft by way of two bevel gears. The axes of all of the gears are located in a common plane which coincides with the central longitudinal symmetry plane of the housing.
Application Number:
JP12043273A
Publication Date:
July 25, 1974
Filing Date:
October 27, 1973
Export Citation:
International Classes:
B25D16/00; B25D11/12; (IPC1-7): B23B45/02
Domestic Patent References:
| JPS4827269A | 1973-04-10 |