IMPACT TOOL - MAKITA CORP

Title:

IMPACT TOOL

Document Type and Number:

WIPO Patent Application WO/2010/128665

Kind Code:

A1

Abstract:

A technique for an impact tool for rectilinearly driving a tool bit in the longitudinal axis direction through an oscillating member, the technique further improving vibration damping properties. An impact tool comprising: a motor (111); a rotating shaft (125) rotationally driven by the motor (111); an oscillating member (129) which oscillates in the longitudinal axis direction of the tool bit (119) on the basis of the rotational operation of the rotating shaft (125); tool driving mechanisms (141, 143, 145) connected to the oscillating member (129) at the end region thereof which is located on the side intersecting the axis of the rotating shaft (125), the tool driving mechanisms (141, 143, 145) rectilinearly driving the tool bit (119) by rectilinearly moving the tool bit (119) in the longitudinal axis direction thereof on the basis of the oscillating operation of the oscillating member (129); and a vibration damping member (151) operating so as to suppress the vibration of the tool bit (119) in the longitudinal axis direction thereof occurring during the work by the tool bit (119). The vibration damping member (151) is disposed on the opposite side of the line of the rectilinear motion of the tool bit (119) from the rotating shaft (125) and is driven by being connected to the portion at which the oscillating member (129) and the tool driving mechanisms (141, 143, 145) are connected.

Inventors:

IIO TAKAYOSHI (JP)

Application Number:

PCT/JP2010/057767

Publication Date:

November 11, 2010

Filing Date:

May 06, 2010

Export Citation:

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Assignee:

MAKITA CORP (JP)
IIO TAKAYOSHI (JP)

International Classes:

B25D17/24

Domestic Patent References:

WO2005105386A1

2005-11-10

Foreign References:

JP2008307655A	2008-12-25
JP2009045732A	2009-03-05

Other References: