EP2106883A1 - Appareil de pose fonctionnant avec des combustibles - Google Patents

Appareil de pose fonctionnant avec des combustibles Download PDF

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Publication number
EP2106883A1
EP2106883A1 EP09154393A EP09154393A EP2106883A1 EP 2106883 A1 EP2106883 A1 EP 2106883A1 EP 09154393 A EP09154393 A EP 09154393A EP 09154393 A EP09154393 A EP 09154393A EP 2106883 A1 EP2106883 A1 EP 2106883A1
Authority
EP
European Patent Office
Prior art keywords
piston
combustion chamber
pump
sensor
setting
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
EP09154393A
Other languages
German (de)
English (en)
Other versions
EP2106883B1 (fr
Inventor
Christian Hahn
Rolf Erhardt
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 EP2106883A1 publication Critical patent/EP2106883A1/fr
Application granted granted Critical
Publication of EP2106883B1 publication Critical patent/EP2106883B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure

Definitions

  • the present patent application relates to a combustion-powered setting tool referred to in the preamble of claim 1. Art.
  • Such setting tools can be operated with gaseous or vaporizable liquid fuels that are burned in a combustion chamber, thereby driving a driving piston for fasteners. After the setting process, the drive piston must be returned to its original position near the combustion chamber, so that the setting device is ready for another setting process.
  • the object of the present invention is therefore to develop a setting tool of the aforementioned type, which allows a low-wear and reliable piston return.
  • the means for resetting the drive piston includes a pump which generates or at least amplifies the differential pressure for piston return.
  • the pump may be the only source for generating the differential pressure or it may amplify a thermally generated differential pressure.
  • the pump is formed as connected to the combustion chamber electric suction pump for generating a suction air, whereby a negative pressure can be generated in the combustion chamber, so that the voltage applied to the combustion chamber side facing away from the piston head ambient pressure can reset the drive piston in its initial position.
  • control unit for the pump, which controls the pump based on data determined by means of sensor means, whereby the pump can be operated efficiently and energy-saving.
  • the sensor means include a piston sensor which detects the position of the driving piston, so that a reset of the driving piston is detectable and so the control unit can turn off the pump after the reset.
  • the sensor means include a temperature sensor, so that the control unit only turns on the pump if the temperature difference between the device or combustion chamber temperature and the ambient temperature has a specific value falls below, so that a complete piston return is ensured. This measure also ensures high energy efficiency of the piston return device.
  • an electrically controllable shut-off valve is arranged, which is controlled by the control unit.
  • the check valve is closed by the control unit when the drive piston is again in its initial position, so that during a setting process, the pressure wave generated in the combustion chamber does not strike through to the pump and damage it.
  • the control unit can also at the end of a setting process, which z. B. detected via the piston sensor or determined by timing, causing an opening of the check valve, so that the pump is connected to the combustion chamber and can suck gases from the combustion chamber to generate a negative pressure there.
  • the invention is shown in one embodiment.
  • the drawing shows an inventive setting device in partial sectional view.
  • the setting device 10 shown in the figure can be operated with a fuel gas or with a vaporizable liquid fuel, and has a, arranged in a housing 13 setting network. About the network, a fastener, such as a nail, bolts, etc. are driven into a workpiece W when the setting tool 10 with its bolt guide 16, pressed against a workpiece W, and is triggered.
  • a trigger switch 42 is provided on the handle of the setting device 10 in addition to at least one safety switch in the form of a contact pressure switch.
  • the setting mechanism includes, inter alia, a combustion chamber 11, a piston guide 17, in which a drive piston 15 is slidably mounted, and the bolt guide 16 in which a fastener can be performed, and where a fastener moves over the forward moving Setzidess workede end of the drive piston 15, and can be driven into a workpiece W.
  • the bolt guide 16 closes in the setting direction of the piston guide 17.
  • the drive piston 15 has at its end facing the combustion chamber 11 a piston head 115 in the form of a piston plate, which is sealingly guided on the inner walls of the piston guide 17 and which separates a first space and a second space from each other in an axial direction defined by the piston.
  • an ignition device 14 such as. B. a spark plug, for igniting a, introduced for a setting process in the combustion chamber 11 oxidant-fuel mixture.
  • the supply of the fuel into the combustion chamber or into the combustion chamber 11 takes place via a fuel supply 19 from a fuel reservoir 12 or a fuel source.
  • a metering device 18 such as a mechanical or electronic metering valve arranged.
  • the fuel supply to the combustion chamber 11 z. B. be controlled by a not reproduced here mechanical or electronic control device.
  • an ignition via the ignition device 14, which ignites the air-fuel mixture in the combustion chamber 11, is triggered via the trigger switch 42.
  • the displaced by the driving piston 15 air in the first space between the piston head 115 and the bolt guide 16 facing the end of the piston guide 17 can escape via the exhaust 41.
  • the expanding combustion gases from the combustion chamber 11 can also escape via the exhaust 41 as soon as the exhaust port is overrun by the piston head 115 and is in communication with the second space between the piston head 115 and the combustion chamber 11.
  • a pump 20 of the device for returning the driving piston 15 is also arranged.
  • This pump 20 is z. B. formed as a suction pump and includes a driven by an electric drive 21 piston 22 which runs in a cylinder 23. About a connecting rod 24, the piston 22 is mechanically connected to the electric drive 21.
  • the electrical energy for the electric drive 21 is supplied from an existing in the setting device 10 electrical energy source 32, the z. B. is designed as an accumulator or battery.
  • the pump 20 communicates via a line 27 with the combustion chamber 11, wherein in the line 27, a check valve 28 is interposed, which is electrically controlled by a control unit 30, which also controls the pump 20.
  • the check valve 28 closes in a blocking position shown in the figure, the line 27 and are in an open position, the pneumatic communication between the combustion chamber 11 and the pump 20 free.
  • the cylinder 23 of the pump 20 has an inlet 36 into which the line 27 opens and an outlet 35 to the environment, are discharged via the sucked gases from the combustion chamber 11 1 to the environment.
  • the entry of gases into the cylinder 23 enabling valve means 26 is arranged, which blocks in the opposite direction and prevents leakage of air or gases from the cylinder 23 into the combustion chamber 11 1.
  • the outflow of air or gases from the cylinder 23 enabling valve means 25 is arranged, which blocks in the opposite direction and prevents an inflow of ambient air into the cylinder 23.
  • the control unit 30 is connected to sensor means which comprise at least one piston sensor 31 for detecting the piston position and preferably at least one temperature sensor 33 for determining a temperature difference between the device or combustion chamber temperature and the ambient temperature.
  • the control unit 30 controls both the pump 20 and the check valve 28 on the basis of measured data from the piston sensor 31 and the temperature sensor 33.
  • the control unit 30 starts the pump 20 when an ambient temperature is determined by the temperature sensor which is so high that a determined temperature Difference temperature from the combustion chamber temperature and the ambient temperature falls below a set limit and the piston sensor 31 determines that the drive piston 15 is not in its initial position.
  • the control unit 30 then further causes the check valve 28 to go to the open position to allow communication between the combustion chamber 11 and the pump 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP09154393.4A 2008-04-01 2009-03-05 Appareil de pose fonctionnant avec des combustibles Not-in-force EP2106883B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008000909A DE102008000909A1 (de) 2008-04-01 2008-04-01 Brennkraftbetriebenes Setzgerät

Publications (2)

Publication Number Publication Date
EP2106883A1 true EP2106883A1 (fr) 2009-10-07
EP2106883B1 EP2106883B1 (fr) 2017-01-04

Family

ID=40809843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154393.4A Not-in-force EP2106883B1 (fr) 2008-04-01 2009-03-05 Appareil de pose fonctionnant avec des combustibles

Country Status (4)

Country Link
US (1) US7980440B2 (fr)
EP (1) EP2106883B1 (fr)
JP (1) JP5417011B2 (fr)
DE (1) DE102008000909A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150336A1 (fr) 2015-09-29 2017-04-05 HILTI Aktiengesellschaft Appareil de pose fonctionnant avec des combustibles
EP3184255A1 (fr) * 2015-12-22 2017-06-28 HILTI Aktiengesellschaft Outil de scellement a moteur thermique et procede de fonctionnement d'un outil de scellement
US10926390B2 (en) 2015-12-22 2021-02-23 Hilti Aktiengesellschaft Fuel-operated firing device and method for operating a firing device of this type
US11204046B2 (en) 2015-12-22 2021-12-21 Hilti Aktiengesellschaft Fuel-operated firing device and method for operating a firing device of this type

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646671B2 (en) * 2008-01-04 2014-02-11 Illinois Tool Works Inc. Combustion chamber and cooling system for fastener-driving tools
DE102009041824A1 (de) * 2009-09-18 2011-03-24 Hilti Aktiengesellschaft Vorrichtung zur Übertragung von Energie auf ein Befestigungselement
DE102009041828A1 (de) * 2009-09-18 2011-03-24 Hilti Aktiengesellschaft Vorrichtung zur Übertragung von Energie auf ein Befestigungselement
DE102010061938A1 (de) * 2010-11-25 2012-05-31 Hilti Aktiengesellschaft Eintreibgerät
DE102011076086A1 (de) * 2011-05-19 2012-11-22 Hilti Aktiengesellschaft Bolzensetzgerät und Verfahren zum Betreiben eines Bolzensetzgeräts
FR2988634B1 (fr) * 2012-04-03 2014-03-21 Illinois Tool Works Adaptateur amovible d'admission et de melange d'air et de combustible pour outil a combustion
DE102012206764A1 (de) * 2012-04-25 2013-10-31 Hilti Aktiengesellschaft Arbeitsgerät zum Setzen von Befestigungselementen
WO2013178246A1 (fr) 2012-05-29 2013-12-05 Hilti Aktiengesellschaft Appareil de pose actionné par combustion interne
FR3001172B1 (fr) * 2013-01-18 2015-06-05 Illinois Tool Works Appareil de fixation electropneumatique a gaz
EP2851157A1 (fr) * 2013-09-19 2015-03-25 HILTI Aktiengesellschaft Dispositif d'entraînement avec accumulateur pneumatique
EP2851158A1 (fr) * 2013-09-19 2015-03-25 HILTI Aktiengesellschaft Dispositif d'entraînement avec accumulateur pneumatique chauffé
EP2875902A1 (fr) * 2013-11-26 2015-05-27 HILTI Aktiengesellschaft Appareil de pose avec sonde de température
DE102014206076A1 (de) * 2014-03-31 2015-10-01 Robert Bosch Gmbh Handwerkzeugmaschine, Verfahren zum Betreiben
US9636812B2 (en) * 2015-01-23 2017-05-02 Tricord Solutions, Inc. Fastener driving apparatus
EP3141348A1 (fr) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Appareil d'enfoncement entraine par combustible dote d'une articulation de soupape
EP3141347A1 (fr) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Appareil d'enfoncement entraine par combustible dote d'une articulation de soupape
US10166666B2 (en) * 2015-11-25 2019-01-01 Illinois Tool Works Inc. Adapter for combustion tool fuel cells
JP7183543B2 (ja) * 2018-02-09 2022-12-06 マックス株式会社 打ち込み工具
CN110053001A (zh) * 2018-01-19 2019-07-26 美克司株式会社 打入工具
EP3677384B1 (fr) * 2018-01-19 2021-05-05 Max Co., Ltd. Cloueuse
US11338422B2 (en) 2018-01-19 2022-05-24 Max Co., Ltd. Driving tool
DE102019116968A1 (de) * 2019-06-18 2020-12-24 Benteler Automobiltechnik Gmbh Stoßantrieb für ein linear zu bewegendes Werkzeug, Blechbauteil sowie Verfahren zum Schneiden eines Blechbauteils
US11819989B2 (en) 2020-07-07 2023-11-21 Techtronic Cordless Gp Powered fastener driver
CA3167425A1 (fr) 2021-07-16 2023-01-16 Techtronic Cordless Gp Pose-attaches electrique

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EP0056989A2 (fr) 1981-01-22 1982-08-04 Signode Corporation Outil portatif, entraîné à gaz, à moteur linéaire
EP0291545A1 (fr) * 1987-05-18 1988-11-23 Joseph S. Adams Dispositif de détonation répétée
DE19509763A1 (de) 1995-03-17 1996-09-19 Adolf Wuerth Gmbh & Co Kg Bolzensetzgerät
US20060260568A1 (en) * 2005-05-23 2006-11-23 Moeller Larry M Thermal regulation control for combustion nailer
WO2007048006A2 (fr) * 2005-10-21 2007-04-26 Black & Decker Inc. Outil d'entrainement a combustion
US20080110333A1 (en) * 2006-11-13 2008-05-15 Illinois Tool Works Inc. Jet pump cooling system for combustion-powered fastener-driving tools

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US4712379A (en) * 1987-01-08 1987-12-15 Pow-R Tools Corporation Manual recycler for detonating impact tool
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US6016945A (en) * 1997-12-31 2000-01-25 Porter-Cable Corporation Internal combustion fastener driving tool manual recycler
US7040520B2 (en) * 2002-09-12 2006-05-09 Illinois Tool Works Inc. Fan motor suspension mount for a combustion-powered tool
DE10259567A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Brennkraftbetriebenes Setzgerät
DE10260702B4 (de) * 2002-12-23 2014-01-30 Hilti Aktiengesellschaft Brennkraftbetriebenes Setzgerät
DE10358576A1 (de) * 2003-12-15 2005-07-28 Hilti Ag Brennkraftbetriebenes Setzgerät
US7163134B2 (en) * 2004-02-09 2007-01-16 Illinois Tool Works Inc. Repetitive cycle tool logic and mode indicator for combustion powered fastener-driving tool
US7341171B2 (en) * 2004-02-09 2008-03-11 Illinois Tool Works Inc. Fan control for combustion-powered fastener-driving tool
US7571841B2 (en) * 2004-04-19 2009-08-11 Illinois Tool Works, Inc. Interchangeable adapter for in-can and on-can fuel cells
JP4353076B2 (ja) * 2004-11-16 2009-10-28 日立工機株式会社 燃焼式動力工具
DE102005000149A1 (de) * 2005-11-04 2007-05-10 Hilti Ag Brennkraftbetriebenes Setzgerät
JP2008018513A (ja) * 2006-07-14 2008-01-31 Makita Corp 燃焼式作業工具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056989A2 (fr) 1981-01-22 1982-08-04 Signode Corporation Outil portatif, entraîné à gaz, à moteur linéaire
EP0291545A1 (fr) * 1987-05-18 1988-11-23 Joseph S. Adams Dispositif de détonation répétée
DE19509763A1 (de) 1995-03-17 1996-09-19 Adolf Wuerth Gmbh & Co Kg Bolzensetzgerät
US20060260568A1 (en) * 2005-05-23 2006-11-23 Moeller Larry M Thermal regulation control for combustion nailer
WO2007048006A2 (fr) * 2005-10-21 2007-04-26 Black & Decker Inc. Outil d'entrainement a combustion
US20080110333A1 (en) * 2006-11-13 2008-05-15 Illinois Tool Works Inc. Jet pump cooling system for combustion-powered fastener-driving tools

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150336A1 (fr) 2015-09-29 2017-04-05 HILTI Aktiengesellschaft Appareil de pose fonctionnant avec des combustibles
WO2017055236A1 (fr) 2015-09-29 2017-04-06 Hilti Aktiengesellschaft Appareil d'assemblage fonctionnant à l'énergie thermique de combustion
EP3184255A1 (fr) * 2015-12-22 2017-06-28 HILTI Aktiengesellschaft Outil de scellement a moteur thermique et procede de fonctionnement d'un outil de scellement
WO2017108787A1 (fr) * 2015-12-22 2017-06-29 Hilti Aktiengesellschaft Outil de pose actionné par la pression d'une combustion et procédé pour faire fonctionner un outil de pose de ce type
US10926390B2 (en) 2015-12-22 2021-02-23 Hilti Aktiengesellschaft Fuel-operated firing device and method for operating a firing device of this type
US11103987B2 (en) 2015-12-22 2021-08-31 Hilti Aktiengesellschaft Fuel-operated firing device and method for operating a firing device of this type
US11204046B2 (en) 2015-12-22 2021-12-21 Hilti Aktiengesellschaft Fuel-operated firing device and method for operating a firing device of this type

Also Published As

Publication number Publication date
EP2106883B1 (fr) 2017-01-04
DE102008000909A1 (de) 2009-10-08
US20090250499A1 (en) 2009-10-08
JP2009248302A (ja) 2009-10-29
JP5417011B2 (ja) 2014-02-12
US7980440B2 (en) 2011-07-19

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