EP1226903A3 - Electric hand tool with idle running switch off - Google Patents

Electric hand tool with idle running switch off Download PDF

Info

Publication number
EP1226903A3
EP1226903A3 EP02405018A EP02405018A EP1226903A3 EP 1226903 A3 EP1226903 A3 EP 1226903A3 EP 02405018 A EP02405018 A EP 02405018A EP 02405018 A EP02405018 A EP 02405018A EP 1226903 A3 EP1226903 A3 EP 1226903A3
Authority
EP
European Patent Office
Prior art keywords
gas spring
electric hand
hand tool
tool
idle running
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
EP02405018A
Other languages
German (de)
French (fr)
Other versions
EP1226903B1 (en
EP1226903A2 (en
Inventor
Uto Plank
Martin Richter
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 EP1226903A2 publication Critical patent/EP1226903A2/en
Publication of EP1226903A3 publication Critical patent/EP1226903A3/en
Application granted granted Critical
Publication of EP1226903B1 publication Critical patent/EP1226903B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25D11/005—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
    • B25D11/12—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
    • 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
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/035—Bleeding holes, e.g. in piston guide-sleeves

Abstract

Ein Elektrohandwerkzeuggerät zur Erzeugung einer zumindest teilweise schlagenden Bewegung eines Werkzeugs (6) mit einem pneumatischen Schlagwerk mit einer Gasfeder (1) in einem Führungsrohr (2) und einer Leerschlagabschaltung des Schlages bei fehlendem axialen Gegendruck über das Werkzeug (6), wobei sich im Falle des Leerschlags ein Flugkolben (4) und ein Döpper (5) in einer Leerschlagposition befindet, welche über einen, über Ventilöffnungen (8) steuerbaren, geöffneten, sich axial ausserhalb des Innenmantels des Führungsrohrs (2) erstreckenden, Luftkanal (9) die Belüftung der Gasfeder (1) zur Umgebung ermöglicht, wobei sich der Luftkanal (9) vom axialen Bereich der Gasfeder (1) bis zum axialen Bereich des Döppers (5) erstreckt und die Ventilöffnungen (8) zur Belüftung der Gasfeder (1) durch den in einer Arbeitsposition angeordneten Döpper (5) verschliessbar sind.

Figure imgaf001
An electric hand tool for generating an at least partially striking movement of a tool (6) with a pneumatic percussion with a gas spring (1) in a guide tube (2) and a Leerschlagabschaltung the shock in the absence of axial back pressure on the tool (6), wherein in the case a blank piston (4) and an anvil (5) is in a Leerschlagposition, which via a valve openings (8) controllable, open, axially outside the inner shell of the guide tube (2) extending, air duct (9) the ventilation of Gas spring (1) allows the environment, wherein the air duct (9) from the axial region of the gas spring (1) extends to the axial region of the striker (5) and the valve openings (8) for ventilation of the gas spring (1) by the in one Working position arranged striker (5) are lockable.
Figure imgaf001
EP02405018.9A 2001-01-24 2002-01-14 Electric hand tool with idle running switch off Expired - Lifetime EP1226903B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10103141A DE10103141A1 (en) 2001-01-24 2001-01-24 Electrical hand tool appliance e.g. hammer drill, has pneumatic striking tool and valve openings sealed off to vent pneumatic spring through riveting header
DE10103141 2001-01-24

Publications (3)

Publication Number Publication Date
EP1226903A2 EP1226903A2 (en) 2002-07-31
EP1226903A3 true EP1226903A3 (en) 2009-05-20
EP1226903B1 EP1226903B1 (en) 2013-07-03

Family

ID=7671601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405018.9A Expired - Lifetime EP1226903B1 (en) 2001-01-24 2002-01-14 Electric hand tool with idle running switch off

Country Status (6)

Country Link
US (1) US6467555B2 (en)
EP (1) EP1226903B1 (en)
JP (1) JP4166017B2 (en)
CN (1) CN1289266C (en)
DE (1) DE10103141A1 (en)
ZA (1) ZA200200623B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947797B (en) * 2010-08-24 2012-11-14 肇庆市志成气动有限公司 Pneumatic feeding drilling power head

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001097486A2 (en) * 2000-06-09 2001-12-20 Brown Charles P Method and system for protecting domain names
DE10216051A1 (en) * 2002-04-11 2003-10-23 Hilti Ag Pneumatic striking mechanism
GB0428215D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Piston Drive Mechanism
AU2007202967A1 (en) * 2006-07-01 2008-01-17 Black & Decker, Inc. A tool holder for a pavement breaker
EP1872914B1 (en) * 2006-07-01 2010-09-22 Black & Decker, Inc. A Pavement Breaker
JP2008012664A (en) 2006-07-01 2008-01-24 Black & Decker Inc Lubricant pump for hammer drill
JP2008012661A (en) 2006-07-01 2008-01-24 Black & Decker Inc Beat piece wear indicator for hammer drill
EP1872909A3 (en) * 2006-07-01 2010-05-05 Black & Decker, Inc. A tool holder connection system for a pavement breaker
US7413026B2 (en) * 2006-07-01 2008-08-19 Black & Decker Inc. Lubricant system for powered hammer
DE102007000081A1 (en) * 2007-02-08 2008-08-21 Hilti Ag Hand tool with pneumatic percussion
DE102007056531A1 (en) * 2007-11-23 2009-05-28 Hilti Aktiengesellschaft Hand tool machine with impact tool holder and associated tool
JP5154995B2 (en) * 2008-03-28 2013-02-27 株式会社マキタ Impact tool
DE102008050703B3 (en) * 2008-10-07 2009-12-31 Wacker Neuson Se Implement with overrunning clutch
DE102009027469A1 (en) * 2009-07-06 2011-01-13 Robert Bosch Gmbh tooling
DE102009029055A1 (en) * 2009-09-01 2011-03-10 Robert Bosch Gmbh Drilling and / or chiselling device
DE102010029915A1 (en) * 2010-06-10 2011-12-15 Hilti Aktiengesellschaft Machine tool and control method
JP2012196728A (en) * 2011-03-18 2012-10-18 Makita Corp Impact tool
EP3636389A1 (en) 2012-02-03 2020-04-15 Milwaukee Electric Tool Corporation Rotary hammer
CN103331735B (en) * 2013-07-02 2016-04-13 陈振宇 For carrying out the percussion mechanism and the toolroom machine that impact operation
EP2857150A1 (en) 2013-10-03 2015-04-08 HILTI Aktiengesellschaft Manual tool machine
EP2886261A1 (en) 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Manual tool machine
GB201421576D0 (en) 2014-12-04 2015-01-21 Black & Decker Inc Drill
GB201421577D0 (en) * 2014-12-04 2015-01-21 Black & Decker Inc Drill
EP3181301A1 (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
EP3181300A1 (en) * 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Percussive handheld machine tool
WO2020056654A1 (en) * 2018-09-20 2020-03-26 博世电动工具（中国）有限公司 Impact machine tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111127A1 (en) * 1990-04-05 1991-10-10 Makita Corp PERFORMANCE TOOL
DE19621057A1 (en) * 1995-05-25 1996-12-19 Makita Corp Electric hammer or hammer drill
EP0759341A2 (en) * 1995-08-18 1997-02-26 Makita Corporation Hammer drill with an idling strike prevention mechanism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826213A1 (en) * 1988-08-02 1990-02-15 Bosch Gmbh Robert DRILLING HAMMER
JP3292972B2 (en) * 1996-03-29 2002-06-17 株式会社マキタ Impact tool
DE19810088C1 (en) * 1998-03-10 1999-08-26 Bosch Gmbh Robert Hammer and boring drill
DE19833650A1 (en) * 1998-07-25 2000-01-27 Hilti Ag Hand drill
DE19851888C1 (en) * 1998-11-11 2000-07-13 Metabowerke Kg Hammer drill
GB9902789D0 (en) * 1999-02-09 1999-03-31 Black & Decker Inc Rotary hammer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111127A1 (en) * 1990-04-05 1991-10-10 Makita Corp PERFORMANCE TOOL
DE19621057A1 (en) * 1995-05-25 1996-12-19 Makita Corp Electric hammer or hammer drill
EP0759341A2 (en) * 1995-08-18 1997-02-26 Makita Corporation Hammer drill with an idling strike prevention mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947797B (en) * 2010-08-24 2012-11-14 肇庆市志成气动有限公司 Pneumatic feeding drilling power head

Also Published As

Publication number Publication date
JP2002254350A (en) 2002-09-10
US6467555B2 (en) 2002-10-22
ZA200200623B (en) 2002-08-01
US20020108766A1 (en) 2002-08-15
EP1226903B1 (en) 2013-07-03
DE10103141A1 (en) 2002-07-25
CN1289266C (en) 2006-12-13
JP4166017B2 (en) 2008-10-15
CN1367067A (en) 2002-09-04
EP1226903A2 (en) 2002-07-31

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