IP Library Granted Patent US 7,665,541
Granted Patent B2
US 7,665,541 · App. 12/230,910 · Granted Feb 23, 2010

Electric power tool with cover

Assignee: Hitachi Koki Co., Ltd.
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Quick Facts
Patent No.
US 7,665,541
App. No.
12/230,910
Granted
Feb 23, 2010
Kind
B2
Abstract

A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of the hammer case is disposed.

Claims (23)

1. An impact tool comprising:

a motor;

a housing that accommodates the motor;

a metal hammer case connected to a front side of the housing;

an impact mechanism provided inside of the hammer case;

a tool bit connected to the impact mechanism;

a cover that is fixed on and covers an outer periphery of the hammer case; and

an elastic stopper fixed to the hammer case and disposed at a front side of the cover;

wherein the cover comprises a protrusion provided at a front portion of the cover, the protrusion extending in an inner diametric direction from the front edge; and

the protrusion is sandwiched between the hammer case and the stopper in a front and rear direction.

2. An impact tool, comprising:

an electric motor;

a housing comprising a body portion and a handle, the body portion including a rear portion that covers the electric motor, the handle extending downward from the body portion;

a trigger provided on an upper portion of the handle;

a storage battery connected to a lower portion of the handle;

a hook portion provided on the lower portion of the handle;

an elastomer provided on the rear portion of the body portion;

a metal hammer case fixed to a front side of the body portion and exposed from the front side of the body portion;

a hammer accommodated in the hammer case and rotatably connected to the motor;

an anvil accommodated in the hammer case and configured to be hit by the hammer in a rotatable direction;

a holder connected to an front end of the anvil and configured to hold the tool bit;

a cover made of resin, the cover covering an area including an outer periphery of the hammer case from a front portion of the hammer case to a front edge of the body portion, while not covering the rear portion of the body portion; and

an elastic stopper disposed at a front side of the cover and fixed to the hammer case.

Assignments (1)
CHANGE OF NAME Recorded Jul 26, 2018
From: HITACHI KOKI KABUSHIKI KAISHA
To: KOKI HOLDINGS CO., LTD.
Reel/Frame 047270/0107 →
Priority Claims (1)
JP P2002-046928 · Feb 22, 2002 · national
Continuity (3)
Continuation 1126294900 · Nov 1, 2005
Continuation 1032051500 · Dec 17, 2002
Related Publication 20090014194A1 · Jan 15, 2009