EP1862263B1 - Appareil de scellement à combustion - Google Patents

Appareil de scellement à combustion Download PDF

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Publication number
EP1862263B1
EP1862263B1 EP07108096A EP07108096A EP1862263B1 EP 1862263 B1 EP1862263 B1 EP 1862263B1 EP 07108096 A EP07108096 A EP 07108096A EP 07108096 A EP07108096 A EP 07108096A EP 1862263 B1 EP1862263 B1 EP 1862263B1
Authority
EP
European Patent Office
Prior art keywords
circuit
combustion
fastening tool
ignition
circuits
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.)
Not-in-force
Application number
EP07108096A
Other languages
German (de)
English (en)
Other versions
EP1862263A1 (fr
Inventor
Iwan Wolf
Ulrich Schiestl
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 EP1862263A1 publication Critical patent/EP1862263A1/fr
Application granted granted Critical
Publication of EP1862263B1 publication Critical patent/EP1862263B1/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 invention relates to a combustion-driven setting tool referred to in the preamble of claim 1. Art.
  • Such setting devices have a combustion chamber in which a portion of liquefied petroleum gas or another vaporizable fuel with an oxidizing agent such. B. ambient air, is combustible.
  • a setting piston displaceably guided in a piston guide is driven in order to drive a fastening element into an article.
  • a combustion-powered setting tool which has an electronic control with a microprocessor for controlling the ignition and the injection.
  • the setting tool in this case has various sensors, inter alia, for measuring the air pressure of the environment and the fuel pressure.
  • the metering and metering of the fuel from the fuel reservoir to the combustor is controlled by the microprocessor based on the data sensed by the sensors, for which purpose the microprocessor cooperates with a control valve for the fuel.
  • a disadvantage of the combined ignition and injection electronics of US Pat. No. 6,123,241 is that it may cause interference by the EMC emission of the spark, which affect the whole combined electronics and so z. B. can also influence a subsequent re-fuel injection.
  • the object of the present invention is to develop a setting tool of the aforementioned type, which avoids the disadvantages mentioned and ensures a low-noise workflow.
  • control electronics on at least two logically separate circuits, which are electrically separable from each other and of which a first circuit controls the metering device and a second circuit, the ignition device.
  • At least one of the two circuits has at least one microprocessor, whereby a fast data processing is ensured, even if a plurality of parameters is present as input values for the control.
  • both the first circuit and the second circuit each have at least one microprocessor.
  • first circuit and the second circuit can each be activated via at least one switching means, wherein the switching means are independent of each other. This allows the injection to occur as early as possible, so that there is sufficient time between the injection and the ignition for the evaporation of the fuel gas available.
  • a single energy source for supplying both circuits with electrical energy is provided, thereby avoiding additional expenditure in the production and a small volume of construction is achieved.
  • the power supply by the power source via a further switching means at the same time from the first circuit and the second circuit is separable or connectable to these.
  • an electrical disconnection of the two circuits is achieved at the same time when switching off the power supply.
  • FIGS. 1 and 2 is an inventive, operable with a liquid or gaseous fuel propellant setting device 10 with a propellant container 20 reproduced.
  • the setting device 10 has a housing 11 with a handle 17 integrally formed thereon, on which there is a trigger switch 18, by means of which a setting process can be triggered.
  • the setting tool 10 also has a setting network, which includes a combustion chamber 12 for combustion of an air-blowing agent mixture and a set in a piston guide 29 displaceably guided setting piston 19 and via a fastener is driven into a workpiece.
  • a propellant container 20 is interchangeably arranged, which is formed in the present embodiment as a gas can and which contains a liquid gas.
  • the propellant container 20 has at one end a valve outlet 23 of a valve 22, such. B. a stem, on, can be output via the propellant from the propellant container 20.
  • a connection element 14 such in the propellant container receptacle 21, a connection element 14, such.
  • the propellant container is then connected via a outgoing from the connection element 14 propellant conduit 15 with the combustion chamber 12, wherein in the propellant conduit 15 is still a metering device 13 is arranged, via which the propellant is influenced to the combustion chamber 12.
  • the metering device 13 includes z. B. an electronically controllable valve and may be formed as a fuel injection device.
  • an ignition device 16 such as, for. B. a spark plug, arranged, via which a combustion process in the combustion chamber 12 can be triggered.
  • the ignition device 16 and the metering device 13 are electronically designated by a total of 30 and in FIG. 2 more precisely controlled control electronics controlled.
  • the control electronics 30 has two logic circuits 33, 34 which are logically separate from one another, of which the first circuit 33 controls the metering device 13 and the second circuit 34 controls the ignition device 16.
  • the first circuit 33 has a first microprocessor 37 which, on the basis of stored data and measurement data of sensor means 41, 42, which are connected to the first circuit 33, determines the necessary for a setting dose of the blowing agent and transmits the control commands to the metering device 13 ,
  • the first circuit 33 is connected to the metering device 13 via a first control line 31.
  • a first sensor means 41 serves to detect the ambient temperature
  • a second sensor means 42 serves to detect the ambient pressure.
  • a first switching means 35 is arranged, the z. B. is designed as a nose switch in the mouth region of the setting device 10. About this switching means 35, the first circuit 33 is independently activated by the second circuit 34, z. B. when the setting tool is pressed against a workpiece or a substrate.
  • the second circuit 32 has a second microprocessor 38 which controls the ignition by the ignition device 16. Via a second control line 32, the second circuit 34 is connected to the ignition device 16.
  • a second switching means 36 is arranged, the z. B. is coupled to the trigger switch or is formed by the trigger switch itself.
  • the second circuit 34 can be activated independently of the first circuit 33, z. B. when the setting device 10 is triggered via the trigger switch 18.
  • the second switching means 36 could be switched only indirectly as a result of actuation of the trigger switch 18.
  • an energy source 40 such. B. one or more batteries or accumulators, provided, which is connected via leads respectively to the first circuit 33 and the second circuit 34 (see Fig. 2 ). About one Further switching means 39, the power source 40 connected to the circuits 33, 34 and these are supplied with electrical energy.
  • the ignition control (34) releases the ignition caused by the discharge of at least one capacitor, the ignition control (34) causes the switch (39) to open, immediately leading to the dosing control (33) being switched off. Ignition is now completed by the energy stored in said capacitor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (5)

  1. Appareil de scellement actionné par combustion interne, comprenant une chambre de combustion (12) pour un agent propulseur combustible, comprenant un dispositif d'allumage (16) pour produire une étincelle d'allumage dans la chambre de combustion (12) et un dispositif de dosage (13) pour l'agent propulseur, et comprenant une électronique de commande (30) pour le dispositif d'allumage (16) et pour le dispositif de dosage (13), caractérisé en ce que l'électronique de commande (30) comporte au moins deux circuits de commutation séparés logiquement (33, 34) qui peuvent être séparés électriquement l'un de l'autre et dont un premier circuit de commutation (33) commande le dispositif de dosage (13) et dont un second circuit de commutation (34) commande le dispositif d'allumage (16).
  2. Appareil de scellement actionné par combustion interne selon la revendication 1, caractérisé en ce qu'au moins un des deux circuits de commutation (33, 34) comporte au moins un microprocesseur (37, 38).
  3. Appareil de scellement actionné par combustion interne selon la revendication 1 ou 2, caractérisé en ce que le premier circuit de commutation (33) et le second circuit de commutation (34) peuvent chacun être actionnés par l'intermédiaire d'au moins un moyen de commutation (35, 36), les moyens de commutation (35, 36) étant indépendants l'un de l'autre.
  4. Appareil de scellement actionné par combustion interne selon une des revendications 1 à 3, caractérisé en ce que les deux circuits de commutation (33, 34) sont alimentés en énergie électrique par l'intermédiaire d'une source d'énergie (40).
  5. Appareil de scellement actionné par combustion interne selon la revendication 4, caractérisé en ce que l'alimentation en énergie par l'intermédiaire de la source d'énergie (40) peut être séparée du premier circuit de commutation (33) et du second circuit de commutation (34) par l'intermédiaire d'un moyen de commutation supplémentaire (39).
EP07108096A 2006-05-30 2007-05-14 Appareil de scellement à combustion Not-in-force EP1862263B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006000262A DE102006000262B3 (de) 2006-05-30 2006-05-30 Brennkraftbetriebenes Setzgerät

Publications (2)

Publication Number Publication Date
EP1862263A1 EP1862263A1 (fr) 2007-12-05
EP1862263B1 true EP1862263B1 (fr) 2009-03-18

Family

ID=38442069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108096A Not-in-force EP1862263B1 (fr) 2006-05-30 2007-05-14 Appareil de scellement à combustion

Country Status (5)

Country Link
US (1) US8261955B2 (fr)
EP (1) EP1862263B1 (fr)
JP (1) JP5189317B2 (fr)
DE (2) DE102006000262B3 (fr)
ES (1) ES2320816T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957833B1 (fr) * 2010-03-23 2012-06-01 Prospection & Inventions Appareil de fixation a thermistances moteur et cartouche
DE102011050580A1 (de) 2011-05-24 2012-11-29 Fischerwerke Gmbh & Co. Kg Befestigungselement, Befestigungssystem und Verfahren zum Setzen des Befestigungselements
DE102011077832A1 (de) * 2011-06-20 2012-12-20 Hilti Aktiengesellschaft Treibmittelbehälter für brennkraftbetriebene Bolzensetzgeräte
US12255501B2 (en) 2022-05-19 2025-03-18 Milwaukee Electric Tool Corporation Power tool including a printed circuit board with a high impedance trace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171859A (ja) * 1986-01-09 1986-08-02 Nippon Soken Inc 内燃機関用電子制御式燃料噴射装置
US5415136A (en) * 1993-08-30 1995-05-16 Illinois Tool Works Inc. Combined ignition and fuel system for combustion-powered tool
US6123241A (en) * 1995-05-23 2000-09-26 Applied Tool Development Corporation Internal combustion powered tool
JPH0960540A (ja) * 1995-08-25 1997-03-04 Yamaha Motor Co Ltd 内燃機関の制御ユニット
US6694959B1 (en) * 1999-11-19 2004-02-24 Denso Corporation Ignition and injection control system for internal combustion engine
US6983871B2 (en) * 2002-08-09 2006-01-10 Hitachi Koki Co., Ltd. Combustion-powered nail gun
DE10318554B4 (de) * 2003-04-24 2005-03-24 Hilti Ag Brennkraftbetriebenes Setzgerät
DE10319647B3 (de) * 2003-05-02 2004-09-02 Hilti Ag Setzgerät, Befestigungselemente-Magazin und Treibmittelbehälter
DE102004022365A1 (de) * 2004-05-06 2005-12-08 Hilti Ag Brennkraftbetriebenes Setzgerät und Treibmittelbehälter für brennkraftbetriebene Setzgeräte

Also Published As

Publication number Publication date
EP1862263A1 (fr) 2007-12-05
JP2007320028A (ja) 2007-12-13
US8261955B2 (en) 2012-09-11
DE502007000517D1 (de) 2009-04-30
DE102006000262B3 (de) 2007-10-11
US20070290020A1 (en) 2007-12-20
ES2320816T3 (es) 2009-05-28
JP5189317B2 (ja) 2013-04-24

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