Patent ID: 8714279
Filing Date: 2014-05-06
Classification: B25B

Abstract:
1. A method for assembling an impact tool, comprising: providing a housing body housing a motor; housing a rotatable spindle and an impact mechanism operable to convert the rotation of the spindle into intermittent impact actions in a first direction which is a circumferential direction of the spindle, in a hammer casing having an opened rear end and being independent from the housing body; closing the opened rear end of the hammer casing with a rear cover so as to rotatably support the spindle, thereby forming a front unit; coupling the front unit with the housing body by engaging a first engagement member formed on an outer circumferential face of the rear cover and a second engagement member formed on an inner face of the housing body and engaging with the first engagement member, so that a movement of the front unit relative to the housing body in a second direction parallel to a rotation axis of the spindle is restricted, and inserting an output axis of the motor into a through hole formed in the rear cover, thereby coupling the output axis of the motor with the spindle.