EP1795308A3 - Percussion apparatus - Google Patents

Percussion apparatus Download PDF

Info

Publication number
EP1795308A3
EP1795308A3 EP06124921A EP06124921A EP1795308A3 EP 1795308 A3 EP1795308 A3 EP 1795308A3 EP 06124921 A EP06124921 A EP 06124921A EP 06124921 A EP06124921 A EP 06124921A EP 1795308 A3 EP1795308 A3 EP 1795308A3
Authority
EP
European Patent Office
Prior art keywords
locking
tool
locking body
connecting part
motor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06124921A
Other languages
German (de)
French (fr)
Other versions
EP1795308A2 (en
Inventor
Christian Koschel
Markus Hartmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP1795308A2 publication Critical patent/EP1795308A2/en
Publication of EP1795308A3 publication Critical patent/EP1795308A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B25D17/24—Damping the reaction force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/57—Elastomers, e.g. rubber

Landscapes

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

Abstract

Ein Hammerschlaggerät (2) weist einen in einem Gehäuse (4) angeordneten Motor (6), der ein Abtriebselement (12) und einen Schlagmechanismus (10) antreibt, und eine Werkzeugaufnahme (20) auf, an der ein durch den Schlagmechanismus (10) entlang einer Achse (A) beaufschlagbares Werkzeug (22) festlegbar ist, die über einen Verriegelungsmechanismus (24) an dem Abtriebselement (12) festlegbar ist, wobei der Verriegelungsmechanismus (24) mindestens einen Verriegelungskörper (26) aufweist, über den in einer Verriegelungsposition ein Formschluss zwischen einem Verbindungsteil (30) der Werkzeugaufnahme (20) und dem Abtriebselement (12) herstellbar ist und der in radialer Richtung in eine Entriegelungsposition verbringbar ist, in der der Formschluss aufgehoben ist und die Werkzeugaufnahme (20) somit von dem Abtriebselement (12) abnehmbar ist, und wobei eine Stellhülse (34) vorgesehen ist, die in einer Blockierstellung den mindestens einen Verriegelungskörper (26) in der Verriegelungsposition gegen eine radiale Verlagerung abstützt und die gegen eine Federkraft (F) in eine Freigabestellung verstellbar ist, in der der Verriegelungskörper (26) in die Entriegelungsposition verbringbar ist. Es ist vorgesehen, dass zwischen dem Abtriebselement (12) und dem Verbindungsteil (30) ein in axialer Richtung wirkendes Dämpfungselement (56) vorgesehen ist.

Figure imgaf001
A hammer-striking device (2) has a motor (6) arranged in a housing (4), which drives an output element (12) and a striking mechanism (10), and a tool receptacle (20) on which a motor (10) is provided. along an axis (A) acted upon tool (22) can be fixed, which via a locking mechanism (24) on the output member (12) can be fixed, wherein the locking mechanism (24) at least one locking body (26), via which in a locking position Positive connection between a connecting part (30) of the tool holder (20) and the driven element (12) can be produced and which can be moved in the radial direction in an unlocking position in which the form-fitting is canceled and the tool holder (20) thus of the output element (12) is removable, and wherein an adjusting sleeve (34) is provided which in a blocking position the at least one locking body (26) in the Verriegelungspositi is supported against a radial displacement and which is adjustable against a spring force (F) in a release position in which the locking body (26) can be brought into the unlocking position. It is envisaged that between the output member (12) and the connecting part (30) acting in the axial direction of a damping element (56) is provided.
Figure imgaf001
EP06124921A 2005-12-07 2006-11-28 Percussion apparatus Withdrawn EP1795308A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005000179A DE102005000179A1 (en) 2005-12-07 2005-12-07 Hammer striker

Publications (2)

Publication Number Publication Date
EP1795308A2 EP1795308A2 (en) 2007-06-13
EP1795308A3 true EP1795308A3 (en) 2010-03-03

Family

ID=37771094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124921A Withdrawn EP1795308A3 (en) 2005-12-07 2006-11-28 Percussion apparatus

Country Status (4)

Country Link
US (1) US7357194B2 (en)
EP (1) EP1795308A3 (en)
JP (1) JP2007152550A (en)
DE (1) DE102005000179A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4898249B2 (en) * 2006-03-09 2012-03-14 株式会社マキタ Work tools
DE102006000395A1 (en) * 2006-08-07 2008-02-14 Hilti Ag Hand tool with pneumatic percussion
CN203092484U (en) * 2013-02-22 2013-07-31 郭景辉 Force unloading device for nail shotting gun
JP7236921B2 (en) * 2019-04-18 2023-03-10 株式会社マキタ impact tool
US11826891B2 (en) * 2019-10-21 2023-11-28 Makita Corporation Power tool having hammer mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443186A1 (en) * 1984-11-27 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart Chuck for powered hand tools, in particular drilling and/or impact hammers
DE10005910A1 (en) * 2000-02-10 2001-08-23 Bosch Gmbh Robert Hand-held machine tool has base body which encloses at least some of drive part when in locking position
WO2002024403A1 (en) * 2000-09-22 2002-03-28 Robert Bosch Gmbh Hand machine tool with a removable tool holder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168324A (en) * 1963-02-15 1965-02-02 Ingersoll Rand Co Chuck
US3559753A (en) * 1969-05-21 1971-02-02 Ilmar Meri Percussion tool
SU1662832A1 (en) * 1988-09-23 1991-07-15 Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам Percussive machine
DE3924620A1 (en) * 1989-07-26 1991-01-31 Hilti Ag POWDER POWERED BOLT SETTING DEVICE
US5325929A (en) * 1991-07-09 1994-07-05 Bretec Oy Hydraulic impact hammer
SE9201835L (en) * 1992-06-15 1993-10-18 Uniroc Grinding Ab Vibration dampening grinding cup for grinding cemented carbide pins of pin drill bits and holders for such grinding cup
DE19604282A1 (en) * 1996-02-07 1997-08-14 Bosch Gmbh Robert Tool holder with holder for various tool systems
DE19638341A1 (en) * 1996-09-19 1998-03-26 Wuerth Adolf Gmbh & Co Kg Bolt thruster and spring therefor
KR200207572Y1 (en) * 1998-12-04 2001-01-15 이원해 Soundproof Dustproof Device of Hydraulic Rock Drill
GB9910599D0 (en) * 1999-05-08 1999-07-07 Black & Decker Inc Rotary hammer
DE19933972A1 (en) * 1999-07-20 2001-01-25 Bosch Gmbh Robert Hammer drill or hammer
US6510904B1 (en) * 2000-05-26 2003-01-28 Nippon Pneumatic Mfg. Co., Ltd. Protected tool bushing for an impact hammer
US6705409B2 (en) * 2001-03-22 2004-03-16 Chicago Pneumatic Tool Company Reciprocating tool having a piston retaining system
WO2003024671A2 (en) * 2001-09-17 2003-03-27 Milwaukee Electric Tool Corporation Rotary hammer
GB2401570B (en) * 2003-05-12 2006-07-05 Black & Decker Inc Spindle assembly for hammer drill
US7131563B2 (en) * 2005-01-28 2006-11-07 De Poan Pneumatic Corp. Nail driver bumper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443186A1 (en) * 1984-11-27 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart Chuck for powered hand tools, in particular drilling and/or impact hammers
DE10005910A1 (en) * 2000-02-10 2001-08-23 Bosch Gmbh Robert Hand-held machine tool has base body which encloses at least some of drive part when in locking position
WO2002024403A1 (en) * 2000-09-22 2002-03-28 Robert Bosch Gmbh Hand machine tool with a removable tool holder

Also Published As

Publication number Publication date
JP2007152550A (en) 2007-06-21
US7357194B2 (en) 2008-04-15
US20070125564A1 (en) 2007-06-07
DE102005000179A1 (en) 2007-06-14
EP1795308A2 (en) 2007-06-13

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