WO2008126481A1 - Percussion tool - Google Patents

Percussion tool Download PDF

Info

Publication number
WO2008126481A1
WO2008126481A1 PCT/JP2008/053078 JP2008053078W WO2008126481A1 WO 2008126481 A1 WO2008126481 A1 WO 2008126481A1 JP 2008053078 W JP2008053078 W JP 2008053078W WO 2008126481 A1 WO2008126481 A1 WO 2008126481A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
percussion
tool
slide tube
percussion tool
Prior art date
Application number
PCT/JP2008/053078
Other languages
French (fr)
Japanese (ja)
Inventor
Yasutoshi Shinma
Keiji Nakashima
Hajime Takeuchi
Original Assignee
Makita Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Makita Corporation filed Critical Makita Corporation
Publication of WO2008126481A1 publication Critical patent/WO2008126481A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0015—Tools having a percussion-only mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0011—Details of anvils, guide-sleeves or pistons
    • B25D2217/0019—Guide-sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/065—Details regarding assembling of the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/371—Use of springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

A percussion tool in which attachment and detachment of a cylinder (19) for receiving a reciprocating piston (22) and a percussion piece (20) are facilitated and in which the cylinder (19) is constructed so that, in normal use, it is not displaced in position to thereby secure the durability of the tool. In a rotation/percussion unit (3), a crank housing (5) for holding the cylinder (19) by using a tubular section (18) is provided with a plate spring member (46) mounted so as to be movable forward and rearward in the direction of the axis of the cylinder (19) and engaging with an urging sleeve (53) mounted on the outer surface of the cylinder (19), at non-covered sections of a first slide tube (29) and a second slide tube (32) for closing an air hole (36).
PCT/JP2008/053078 2007-03-28 2008-02-22 Percussion tool WO2008126481A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-085315 2007-03-28
JP2007085315A JP5171085B2 (en) 2007-03-28 2007-03-28 Impact tool

Publications (1)

Publication Number Publication Date
WO2008126481A1 true WO2008126481A1 (en) 2008-10-23

Family

ID=39863637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/053078 WO2008126481A1 (en) 2007-03-28 2008-02-22 Percussion tool

Country Status (2)

Country Link
JP (1) JP5171085B2 (en)
WO (1) WO2008126481A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2412483A1 (en) * 2009-03-24 2012-02-01 Makita Corporation Electric hammer
EP2564985A1 (en) * 2011-08-29 2013-03-06 Metabowerke GmbH Air cushion striking mechanism for a motorised hammer drill or demolition hammer
WO2013029855A1 (en) * 2011-09-01 2013-03-07 Robert Bosch Gmbh Portable power tool
JP2014100759A (en) * 2012-11-19 2014-06-05 Makita Corp Hammer drill

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5336172B2 (en) * 2008-12-26 2013-11-06 株式会社マキタ Impact tool
US10344861B2 (en) * 2015-04-24 2019-07-09 Caterpillar Inc. Hammer having composite piston sleeve
KR101685690B1 (en) * 2016-04-19 2016-12-12 주식회사 가우스 Driving pile machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056487U (en) * 1983-09-22 1985-04-19 日立工機株式会社 Cylinder mechanism of impact tools
JPH09136273A (en) * 1995-11-13 1997-05-27 Makita Corp Hammer drill
JPH11170182A (en) * 1997-12-15 1999-06-29 Makita Corp Percussion tool
JP2003211370A (en) * 2001-11-16 2003-07-29 Hitachi Koki Co Ltd Hammer drill
JP2006026854A (en) * 2004-07-20 2006-02-02 Makita Corp Electric hammer drill

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422934Y2 (en) * 1984-12-24 1992-05-27

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056487U (en) * 1983-09-22 1985-04-19 日立工機株式会社 Cylinder mechanism of impact tools
JPH09136273A (en) * 1995-11-13 1997-05-27 Makita Corp Hammer drill
JPH11170182A (en) * 1997-12-15 1999-06-29 Makita Corp Percussion tool
JP2003211370A (en) * 2001-11-16 2003-07-29 Hitachi Koki Co Ltd Hammer drill
JP2006026854A (en) * 2004-07-20 2006-02-02 Makita Corp Electric hammer drill

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2412483A1 (en) * 2009-03-24 2012-02-01 Makita Corporation Electric hammer
EP2412483A4 (en) * 2009-03-24 2013-07-31 Makita Corp Electric hammer
US8672051B2 (en) 2009-03-24 2014-03-18 Makita Corporation Electric hammer
EP2564985A1 (en) * 2011-08-29 2013-03-06 Metabowerke GmbH Air cushion striking mechanism for a motorised hammer drill or demolition hammer
WO2013029855A1 (en) * 2011-09-01 2013-03-07 Robert Bosch Gmbh Portable power tool
JP2014100759A (en) * 2012-11-19 2014-06-05 Makita Corp Hammer drill

Also Published As

Publication number Publication date
JP2008238370A (en) 2008-10-09
JP5171085B2 (en) 2013-03-27

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