Impact tool with a movably supported impact mechanism

Details Impact tool with a movably supported impact mechanism Impact tool with a movably supported impact mechanism

2005-07-05

2009-11-10

Nash, Brian D (Department: 3721)

Tool driving or impacting

Impacting devices

With means for rotating tool

C173S112000, C173S113000, C173S200000, C173S210000, C173S211000

Reexamination Certificate

active

07614460

ABSTRACT:
A portable power tool includes a housing, and an impact mechanism movably supported in the housing and having a front opening for receiving a working implement and a hammer piston for delivering hammer blows to the working implement. The impact mechanism is supported in the housing by a pivot device in a point located between the forward and rear ends of the impact mechanism and allowing longitudinal and pivotal movements but preventing in the support point radial and rotational movements of the impact mechanism relative to the housing. A resilient device is located at a distance from the pivot device and is arranged to bias the impact mechanism to a neutral position relative to the housing and to absorb vibration movements of the impact mechanism to protect the housing against such vibration movements.

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First Chinese Office Action dated Jul. 25, 2008, and English translation thereof, issued in counterpart Chinese Application No. 2005800253733.
Second Chinese Office Action dated May 22, 2009, and English translation thereof, issued in counterpart Chinese Application No. 2005800253733.

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