EP2653270A3 - Hand-held machine tool and control method - Google Patents

Hand-held machine tool and control method Download PDF

Info

Publication number
EP2653270A3
EP2653270A3 EP13163889.2A EP13163889A EP2653270A3 EP 2653270 A3 EP2653270 A3 EP 2653270A3 EP 13163889 A EP13163889 A EP 13163889A EP 2653270 A3 EP2653270 A3 EP 2653270A3
Authority
EP
European Patent Office
Prior art keywords
tool
exciter
dead center
racket
hand
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.)
Granted
Application number
EP13163889.2A
Other languages
German (de)
French (fr)
Other versions
EP2653270A2 (en
EP2653270B1 (en
Inventor
Markus Hartmann
Eduard Pfeiffer
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 EP2653270A2 publication Critical patent/EP2653270A2/en
Publication of EP2653270A3 publication Critical patent/EP2653270A3/en
Application granted granted Critical
Publication of EP2653270B1 publication Critical patent/EP2653270B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B25D17/245—Damping the reaction force using a fluid
    • 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
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • 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
    • B25D2250/195—Regulation means
    • 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
    • B25D2250/221—Sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Die erfindungsgemäße Handwerkzeugmaschine hat eine Werkzeugaufnahme 2 zum Haltern eines meißelnden Werkzeugs auf einer Arbeitsachse 10. Ein pneumatisches Schlagwerk 6 hat einen durch einen Motor 5 um einen Hub zwischen einem werkzeugfernen Totpunkt und einem werkzeugnahen Totpunkt hin-und-her getriebenen Erreger 12, einen auf der Arbeitsachse 10 zwischen einem werkzeugfernen Umkehrpunkt und einem Schlagpunkt hin-und-her bewegten Schläger 13, und eine von dem Erreger 12 und dem Schläger 13 abgeschlossene pneumatische Kammer 15, die die Bewegung des Schlägers 13 an die Bewegung des Erregers 12 ankoppelt. Eine Dämpfeinrichtung 39 erhöht den Druck in der pneumatischen Kammer 15, wenn der Erreger 12 sich bei seiner Bewegung in Richtung zu dem werkzeugfernen Totpunkt auf weniger als den halben Hub an den werkzeugfernen Totpunkt angenähert hat.

Figure imgaf001
The hand tool according to the invention has a tool holder 2 for holding a chiseling tool on a working axis 10 . A pneumatic percussion 6 has a by a motor 5 by a stroke between a tool remote dead center and a tool-near dead center back-and-forth driven exciter 12, one on the working axis 10 between a tool-distant reversal point and a beating point back and forth moving racket 13th , and a closed by the exciter 12 and the racket 13 pneumatic chamber 15, which couples the movement of the racket 13 to the movement of the exciter 12 . A damper 39 increases the pressure in the pneumatic chamber 15 when the exciter 12 has approached the tool distant dead center in its movement towards the tool remote dead center to less than half the stroke.
Figure imgaf001
EP13163889.2A 2012-04-19 2013-04-16 Hand-held machine tool Active EP2653270B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210206452 DE102012206452A1 (en) 2012-04-19 2012-04-19 Hand tool and control method

Publications (3)

Publication Number Publication Date
EP2653270A2 EP2653270A2 (en) 2013-10-23
EP2653270A3 true EP2653270A3 (en) 2017-08-09
EP2653270B1 EP2653270B1 (en) 2018-09-19

Family

ID=48184027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13163889.2A Active EP2653270B1 (en) 2012-04-19 2013-04-16 Hand-held machine tool

Country Status (5)

Country Link
US (1) US20130284473A1 (en)
EP (1) EP2653270B1 (en)
JP (1) JP6203524B2 (en)
CN (1) CN103372852A (en)
DE (1) DE102012206452A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871028A1 (en) * 2013-11-11 2015-05-13 HILTI Aktiengesellschaft Manual tool machine
EP3028820A1 (en) * 2014-12-03 2016-06-08 HILTI Aktiengesellschaft Hand-held machine tool and control method therefor
EP3181301A1 (en) * 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Percussive handheld machine tool
EP3181300A1 (en) * 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Percussive handheld machine tool
EP3181299A1 (en) * 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Percussive handheld machine tool
EP3181298A1 (en) 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Percussive machine tool
EP3260239A1 (en) * 2016-06-24 2017-12-27 HILTI Aktiengesellschaft Handheld machine tool
EP3281747A1 (en) * 2016-08-09 2018-02-14 HILTI Aktiengesellschaft Handheld machine tool
AU2017320579B2 (en) 2016-08-31 2023-08-10 DePuy Synthes Products, Inc. Orthopedic impacting device having a launched mass delivering a controlled, repeatable and reversible impacting force
EP3335837A1 (en) * 2016-12-14 2018-06-20 HILTI Aktiengesellschaft Control method for an impacting handheld machine tool
CN108705121A (en) * 2018-05-15 2018-10-26 钟利芬 A kind of drilling device of hydraulic engineering

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538896A1 (en) * 1975-09-02 1977-07-14 Bernhard Dipl Ing Dipl Bender Percussive pneumatic hammer drill - has guide cylinder interior linked to air control by connector pipe
EP1607187A1 (en) * 2004-06-18 2005-12-21 HILTI Aktiengesellschaft Method and device for improving the deactivation response of an electropneumatic percussive tool

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SE393940B (en) * 1973-12-31 1977-05-31 Atlas Copco Ab PROCEDURE FOR DAMPING OF THE MOVEMENT OF A PATCH PISTON INCLUDING IN A PENCIL AND A PERCENTAGE FOR PERFORMING THE PROCEDURE
FI56052C (en) * 1975-01-16 1979-11-12 Tampella Oy Ab HYDRAULISK BERGBORRMASKIN
SE398066B (en) * 1975-03-18 1977-12-05 Atlas Copco Ab METHOD AND DEVICE FOR STRIKING PROCESSING FOR DAMPING THE RECYCLE FROM A WORKING TOOL
FR2330507A1 (en) * 1975-11-04 1977-06-03 Montabert Roger PERCUSSION MACHINE
FR2369908A1 (en) * 1976-11-08 1978-06-02 Montabert Roger HYDRAULIC PERCUSSION DEVICE
DE2854953C2 (en) 1978-12-20 1982-11-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Hammer drill
JPS6094281A (en) * 1983-10-28 1985-05-27 日立工機株式会社 Vibration reducer for striking tool
AT383866B (en) * 1984-07-06 1987-09-10 Ver Edelstahlwerke Ag DEVICE FOR IMPACTING AND / OR ROTATING DRILLING
US4932479A (en) * 1988-05-05 1990-06-12 Vladimir Pyatov Vacuum-compression type percussion power tool with a pumping chamber
ZA908924B (en) * 1990-01-15 1991-08-28 Sulzer Ag A percussion device
JP3292969B2 (en) * 1995-08-18 2002-06-17 株式会社マキタ Hammer drill
US6378951B1 (en) * 1997-07-23 2002-04-30 Hydroacoustics, Inc. Vibratory pavement breaker
ES2185200T3 (en) * 1997-08-22 2003-04-16 Giovanni Bisutti MECHANICAL TOOL.
DE10160864A1 (en) * 2001-12-12 2003-06-26 Hilti Ag Axial striking electric hand tool device
WO2005007351A1 (en) * 2003-07-15 2005-01-27 Wacker Construction Equipment Ag Working tool with damped handle
EP1502710B1 (en) * 2003-07-31 2008-07-23 Makita Corporation Power tool
DE10358571A1 (en) * 2003-12-15 2005-07-07 Hilti Ag Impact-type electric hand-tool such as chisel hammer or combi-hammer, has motor control having power sensor dependant on power uptake
DE10359572A1 (en) * 2003-12-18 2005-07-28 Robert Bosch Gmbh Schlagwerk for a repetitive beating hand tool
GB0428348D0 (en) * 2004-12-24 2005-02-02 Bamford Excavators Ltd Percussion power tool apparatus
SE530571C2 (en) * 2006-11-16 2008-07-08 Atlas Copco Rock Drills Ab Rock drilling method and rock drilling machine
TW200911478A (en) * 2007-09-12 2009-03-16 Cheng Huan Industry Ltd Reciprocal pneumatic tool structure
DE102008050703B3 (en) * 2008-10-07 2009-12-31 Wacker Neuson Se Implement with overrunning clutch
DE102009008190A1 (en) * 2009-01-30 2010-08-05 Hilti Aktiengesellschaft Pneumatic percussion
JP5405864B2 (en) * 2009-03-23 2014-02-05 株式会社マキタ Impact tool
DE102010029915A1 (en) * 2010-06-10 2011-12-15 Hilti Aktiengesellschaft Machine tool and control method
JP5518617B2 (en) * 2010-08-02 2014-06-11 株式会社マキタ Impact tool
DE102012206445A1 (en) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft machine tool
US10232500B2 (en) * 2012-12-17 2019-03-19 Swerea Ivf Ab Impact machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538896A1 (en) * 1975-09-02 1977-07-14 Bernhard Dipl Ing Dipl Bender Percussive pneumatic hammer drill - has guide cylinder interior linked to air control by connector pipe
EP1607187A1 (en) * 2004-06-18 2005-12-21 HILTI Aktiengesellschaft Method and device for improving the deactivation response of an electropneumatic percussive tool

Also Published As

Publication number Publication date
JP6203524B2 (en) 2017-09-27
JP2013223918A (en) 2013-10-31
CN103372852A (en) 2013-10-30
US20130284473A1 (en) 2013-10-31
EP2653270A2 (en) 2013-10-23
DE102012206452A1 (en) 2013-10-24
EP2653270B1 (en) 2018-09-19

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