Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akinori Nakamura0
Masari Muramatsu0
Naotake Tanaka0
Date of Patent
May 22, 2018
0Patent Application Number
143014740
Date Filed
June 11, 2014
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An impact wrench includes a driving unit, a spindle configured to be rotated by the driving unit, an anvil arranged in front of the spindle in a direction of a rotational axis of the spindle, a primary hammer that is capable of rotating about the rotational axis of the spindle and moving in the direction of the rotational axis of the spindle, a secondary hammer having a cylindrical part in which the primary hammer is housed and that rotates synchronously with the primary hammer, the cylindrical part being configured to receive the spindle, and a rotary impact mechanism that impulsively engages the primary hammer with the anvil to rotate the anvil about the rotational axis of the spindle.
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