EP2017039A3 - Powered hand-tool with percussion mechanism - Google Patents

Powered hand-tool with percussion mechanism Download PDF

Info

Publication number
EP2017039A3
EP2017039A3 EP08104150A EP08104150A EP2017039A3 EP 2017039 A3 EP2017039 A3 EP 2017039A3 EP 08104150 A EP08104150 A EP 08104150A EP 08104150 A EP08104150 A EP 08104150A EP 2017039 A3 EP2017039 A3 EP 2017039A3
Authority
EP
European Patent Office
Prior art keywords
wobble
adjusting
percussion mechanism
guide tube
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Withdrawn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
EP08104150A
Other languages
German (de)
French (fr)
Other versions
EP2017039A2 (en
Inventor
Josef Fünfer
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 EP2017039A2 publication Critical patent/EP2017039A2/en
Publication of EP2017039A3 publication Critical patent/EP2017039A3/en
Withdrawn legal-status Critical Current

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
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
    • 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
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
    • 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
    • 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
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/331—Use of bearings

Abstract

Die Erfindung betrifft eine Handwerkzeugmaschine (10) mit einem über einen Motor (12) antreibbaren pneumatischen Schlagwerk (20). Das Schlagwerk (20) definiert dabei eine zentrale Schlagwerksachse (S) und weist ein in einem Führungsrohr (21) hin und her bewegbares Erregerelement (22) sowie ein in dem Führungsrohr (21) versetzbar geführtes und mittels einer Luftfeder (24) über das Erregerelement (22) antreibbares Schlagelement (23) auf. Das Erregerelement (22) ist dabei über ein motorisch betreibbares längliches Taumelglied (29) in eine hin- und hergehende Bewegung versetzbar. Es ist ferner eine Verstelleinrichtung (30) für den Bewegungshub des Erregerelementes (22) vorgesehen, über die ein Taumelwinkel des Taumelgliedes (29) einstellbar ist. Die Verstelleinrichtung (30) weist dazu ein entlang der Längserstreckung des Taumelgliedes (29) versetzbares Verstellelement (31) zur stufenlosen Verstellung des Taumelwinkels des Taumelgliedes (29) auf.

Figure imgaf001
The invention relates to a hand tool (10) with a pneumatic impact mechanism (20) which can be driven by a motor (12). The percussion mechanism (20) defines a central hammer mechanism axis (S) and has a path in a guide tube (21) movable exciter element (22) and in the guide tube (21) displaceably guided and by means of an air spring (24) via the excitation element (22) drivable impact element (23). The exciter element (22) can be displaced into a reciprocating movement by means of an elongated tumbling element (29) which can be operated by a motor. An adjusting device (30) is also provided for the movement stroke of the excitation element (22), via which a wobble angle of the wobble member (29) can be adjusted. The adjusting device (30) has for this purpose along the longitudinal extent of the wobble member (29) displaceable adjusting element (31) for continuously adjusting the wobble angle of the wobble member (29).
Figure imgaf001
EP08104150A 2007-07-19 2008-05-29 Powered hand-tool with percussion mechanism Withdrawn EP2017039A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007000391A DE102007000391A1 (en) 2007-07-19 2007-07-19 Hand tool with percussion

Publications (2)

Publication Number Publication Date
EP2017039A2 EP2017039A2 (en) 2009-01-21
EP2017039A3 true EP2017039A3 (en) 2012-09-05

Family

ID=39821582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104150A Withdrawn EP2017039A3 (en) 2007-07-19 2008-05-29 Powered hand-tool with percussion mechanism

Country Status (4)

Country Link
US (1) US7802711B2 (en)
EP (1) EP2017039A3 (en)
JP (1) JP2009023085A (en)
DE (1) DE102007000391A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
JP2012223870A (en) * 2011-04-21 2012-11-15 Makita Corp Impact tool
DE102012206445A1 (en) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft machine tool
WO2014034862A1 (en) * 2012-09-03 2014-03-06 株式会社マキタ Impact tool
EP2886259A1 (en) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Driving device
EP3697574A1 (en) 2017-10-20 2020-08-26 Milwaukee Electric Tool Corporation Percussion tool
US11059155B2 (en) 2018-01-26 2021-07-13 Milwaukee Electric Tool Corporation Percussion tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917475A1 (en) * 1979-04-30 1980-11-13 Hilti Ag DRILLING OR CHISEL HAMMER
DE3205141A1 (en) * 1982-02-13 1983-08-18 Robert Bosch Gmbh, 7000 Stuttgart DRILLING HAMMER
DE3505544A1 (en) * 1985-02-18 1986-08-21 Hilti Ag, Schaan Hammer drill
DE19856638A1 (en) * 1998-12-03 2000-06-08 Black & Decker Inc Drive for electric tool, especially percussion drill, has wobble finger protruding from wobble ring of wobble plate arrangement that engages lateral holder in reciprocating component

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603406A (en) * 1969-09-25 1971-09-07 Gkn Screws Fasteners Ltd Explosive operated power tool with impact and rotation
US3948051A (en) * 1974-08-01 1976-04-06 Marshall Don J Fluid pressure amplifier
US4091981A (en) * 1975-08-21 1978-05-30 Hitachi Koki Company, Limited Power driven percussion tool
DE3119956C2 (en) * 1981-05-20 1984-11-22 Joh. Friedrich Behrens AG, 2070 Ahrensburg Sound-damped driving tool for fasteners
SE436988B (en) * 1983-07-01 1985-02-04 Nilsson Goran Alfred NAL HACK DEVICE NAL HACK DEVICE
DE3502977A1 (en) * 1985-01-30 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart PRINTED DRIVER
DE4121279A1 (en) * 1991-06-27 1993-01-07 Bosch Gmbh Robert DRILL AND / OR SLOPE
US6041603A (en) * 1997-12-31 2000-03-28 Porter-Cable Corporation Internal combustion fastener driving tool accelerator plate
USD410182S (en) * 1997-12-31 1999-05-25 Porter-Cable Corporation Internal combustion fastener driving tool
DE102007000255A1 (en) * 2007-05-03 2008-11-06 Hilti Aktiengesellschaft Hand tool with lubricated striking mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917475A1 (en) * 1979-04-30 1980-11-13 Hilti Ag DRILLING OR CHISEL HAMMER
DE3205141A1 (en) * 1982-02-13 1983-08-18 Robert Bosch Gmbh, 7000 Stuttgart DRILLING HAMMER
DE3505544A1 (en) * 1985-02-18 1986-08-21 Hilti Ag, Schaan Hammer drill
DE19856638A1 (en) * 1998-12-03 2000-06-08 Black & Decker Inc Drive for electric tool, especially percussion drill, has wobble finger protruding from wobble ring of wobble plate arrangement that engages lateral holder in reciprocating component

Also Published As

Publication number Publication date
DE102007000391A1 (en) 2009-01-22
JP2009023085A (en) 2009-02-05
EP2017039A2 (en) 2009-01-21
US20090020302A1 (en) 2009-01-22
US7802711B2 (en) 2010-09-28

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