EP1772234A1 - Appareil de scellement à combustion - Google Patents

Appareil de scellement à combustion Download PDF

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Publication number
EP1772234A1
EP1772234A1 EP06120938A EP06120938A EP1772234A1 EP 1772234 A1 EP1772234 A1 EP 1772234A1 EP 06120938 A EP06120938 A EP 06120938A EP 06120938 A EP06120938 A EP 06120938A EP 1772234 A1 EP1772234 A1 EP 1772234A1
Authority
EP
European Patent Office
Prior art keywords
energy
combustion
combustion chamber
setting tool
piston
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Withdrawn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
EP06120938A
Other languages
German (de)
English (en)
Inventor
Walter Odoni
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 EP1772234A1 publication Critical patent/EP1772234A1/fr
Withdrawn legal-status Critical Current

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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.
  • the exhaust gases are removed as completely as possible from the combustion chamber or the combustion chamber after a combustion process.
  • a fan means is used, is moved over the after a setting process fresh air through the combustion chamber to rinse it.
  • Such a combustion-powered setting tool with a combustion chamber for combustion of a mixture of air and a fuel gas is known in which a fan means is arranged on the rear wall of the combustion chamber.
  • This fan means is driven by an electric motor, which is supplied by batteries with electrical energy.
  • the batteries are arranged in a receptacle which is provided parallel to a nail receptacle in a magazine body.
  • the object of the present invention is therefore to develop a setting device of the aforementioned type, which avoids the aforementioned disadvantages and which realizes a ventilation of the combustion chamber in a simple manner. This is achieved according to the invention by the measures mentioned in claim 1.
  • the setting device has a combustion energy-driven drive unit for the fan means, which uses the combustion energy of the setting device directly or indirectly as drive energy for the fan means. Batteries can therefore be dispensed with for the operation of the fan means, whereby on the one hand a significant weight saving is achieved and on the other hand a change of batteries by the user is avoided.
  • the combustion-energy-driven drive unit has an energy store for storing mechanical energy generated from combustion energy, which is coupled on the output side to the fan means.
  • the fan means need not be operated thereby when the combustion energy is released, i. H. in a setting process, but can also be used only after the end of a setting process or before a setting process.
  • the energy store has a storage capacity for storing energy from more than one combustion process.
  • the fan means can also be operated when, in a setting operation due to a bad combustion, for. B. when the fuel gas supply is running low, not enough energy can be transferred from the piston to the fan means. Through the energy storage, this energy deficit can be compensated and a complete flushing of the combustion chamber can be guaranteed with fresh air.
  • the energy storage as a spring element, such. B. as a scroll spring, coil spring, leaf spring, elastomer spring or etc., is formed. It can also be provided as energy storage several spring elements to increase the storage capacity.
  • the energy storage is part of an energy storage unit, which is designed as a clockwork drive.
  • clockwork drive while a mechanism is understood, in addition to an energy storage means for charging the energy storage by the rotational movement of an input element and means for possibly switchable output of the stored energy via an output element, said means one or more freewheels and / or a Gear for Unter- or translation of the output movement may contain.
  • the device for switchable Dispensing the stored energy may be provided with a mechanism which allows the output of the clockwork drive to operate after a switching command for a certain period of time, after the expiry of the clock drive automatically turns off again.
  • the fan means can each be operated for predetermined periods of time.
  • the combustion energy-driven drive unit has a guided in a cylinder piston, wherein the cylinder communicates with the combustion chamber.
  • the stroke movement of the piston can be implemented in the combustion energy-driven drive unit in a simple manner in a rotational movement of the fan means, so that this solution is structurally less expensive.
  • the piston can also be the setting piston of the setting device or be formed by a displaceable combustion chamber rear wall.
  • the piston is supported via a spring element on a side facing away from the combustion chamber end of the cylinder, whereby the piston can be easily moved back to its original position.
  • the spring element could also be used as energy storage.
  • This transmission member is formed in a structurally simple solution as a rack and the input element as a gear.
  • an inventive hand-held, combustion-powered setting tool 10 is shown, which is operable with a liquid or gaseous fuel.
  • the setting tool 10 is shown in its initial or rest position.
  • the setting tool 10 has a housing 11, in which a setting network is arranged, by means of which a fastening element, such as a nail, bolt or etc. can be driven into a ground, when the setting tool 10 is pressed against this and triggered.
  • a fastening element such as a nail, bolt or etc.
  • the network includes u. a. a arranged in a combustion chamber housing 12 combustion chamber 13, a piston guide 17, in which a setting piston 16 is slidably mounted and a bolt guide 18, in which a fastener can be performed and where a fastener moves over the forward moving Setzidess workede end of the setting piston 16 and so that it can be driven into a subsoil.
  • the fasteners can be z. B. be stored in a magazine 37 on setting tool 10.
  • the combustion chamber housing 12 is fixedly connected to the piston guide 17 and has at least one outlet opening 19 at its end region facing the piston guide 17.
  • a first closure means 26 designed as a sleeve is axially displaceably guided, via which the outlet opening 19 can be closed.
  • a, z. B. trained as an O-ring seal body 28 is provided.
  • the first closure means 26 is for this purpose connected to a Anpressstrang 25 in the form of a Anpressgestlindes, which is connected to a slidably guided on the pin guide 18 Anpress catalyst 58.
  • a combustion chamber rear wall 14 is provided in which an inlet opening 15 connected to an air inlet 39 of the housing 11 is arranged.
  • This inlet opening 15 can be closed by a second closing means 27, designed as a closing plate, which closes also coupled to the Anpressstrang 25.
  • a, z. B. designed as an O-ring, sealing element 29 is provided.
  • the combustion chamber 13 is subdivided into a first sub-chamber 31 and a second sub-chamber 32, wherein an ignition unit 23 for igniting an air-fuel mixture located in the combustion chamber 13 is arranged only in the first sub-chamber 31.
  • an annular opening 35 is provided, into which a passage plate 60 provided with annular plate 34 can be moved over the Anpressstrang 25.
  • the annular plate 34 is arranged on a coupled to the Anpressstrang 25 support member 59, which also carries the second closure means 27.
  • the fuel supply into the combustion chamber 13 by means of a fuel supply line 21 from a fuel reservoir 20, such as. B. a liquid gas can.
  • a fuel supply line 21 from a fuel reservoir 20, such as. B. a liquid gas can.
  • a total of 22 designated metering is still provided, the z. B. two metering valves, each measuring the fuel for each of the sub-chambers 31, 32 separately.
  • the control or activation of the metering device 22 can take place via the Anpressstrang 25, provided on a handle 36 of the setting device 10 trigger switch 38 or not shown in the drawings control device.
  • the setting device 10 further comprises a fan means, generally designated 40, which includes a fan means operable by means of a combustion energy powered drive unit 42 which is disposed in a channel 139 connecting the inlet opening 15 to the air inlet 39.
  • the fan means 41 is arranged on a shaft 49 which is rotatably mounted in a rotary bearing 56.
  • the combustion energy-driven drive unit 42 has a displaceably guided in a cylinder 43 piston 44.
  • the piston 44 is supported via a spring element 57 at the end of the cylinder 43 facing away from the combustion chamber 13.
  • the other end of the cylinder 43 is open to the combustion chamber 13.
  • the combustion energy-driven drive unit 42 further has an energy storage unit 147, which is designed as a clockwork drive and which includes a trained as a scroll spring energy storage 47 which is indicated by dashed lines in the figures.
  • the energy storage unit 147 has an input element 46 configured as a toothed wheel, which has a transmission element 45 designed as a toothed rack meshes with the piston 44 is coupled. During a movement of the piston 44, its stroke movement in the direction of the spring element 57 is therefore transmitted via the transmission element 45 and the input element 46 cooperating therewith to the energy storage unit 147 and thus to the energy store 47.
  • the energy storage unit 147 has a rotatably mounted output element 48, which is designed as a gear and via which the energy stored in the energy storage 47 energy in the form of rotational energy can be dissipated again.
  • the output member 48 is connected via a, also designed as a gear, input gear 50, with the shaft 49 and thus connected to the fan means 41.
  • a further gear ratio can be provided, which is not shown in the figures.
  • a blocking element 30 which faces the fan means 41 and is designed as a pin is arranged.
  • the fan means 41 can be prevented from rotation when the blocking element 30, as shown in Fig. 2, projects between the rotor blades of the fan means 41.
  • the combustion thereby jumps via the passage openings 60 in the dividing wall 33 or the annular plate 34 from the first partial chamber 31 into the second partial chamber 32 (arrows 61) and thus generates the turbulence within the combusting gases necessary for efficient combustion.
  • About the expanding combustion gases of the setting piston 16 is offset in the direction 62.
  • the piston 44 is, due to the opening of the cylinder 43 to the combustion chamber 13 back, also acted upon by the expanding combustion gases and offset in the direction of arrow 63 against the piston 44 supporting the spring element 57, wherein the transmission member 45 is moved.
  • the input member 46 is rotated in the direction of arrow 65, whereby trained as a clockwork drive energy storage unit 147 mounted and as a scroll spring trained energy storage 47 is stretched.
  • the output element 48 of the energy store 47 is also unlocked by the rotation of the input element 46, whereby a movement thereof is still prevented due to the blockage element 30 blocking the ventilator means 41.
  • Fig. 3 the setting tool 10 has now been lifted off the ground. As a result, both the outlet opening 19 and the inlet opening 15 were opened.
  • the resetting of the Anpressstrangs 25 and the first and second closure means 26, 27 in the direction of arrow 70 may be z. B. via a spring element, not shown here.
  • the blocking element 30 was also displaced in the direction of the arrow 70 with the second closure element 27.
  • the fan means 41 has been released, so that it is now driven by the output member 50 meshing with the output member 48 of the energy storage unit 147 and rotated in the direction of rotation of the arrow 68.
  • the result is an air flow flowing in the direction of the arrows 69 from the air inlet 39 into the combustion chamber 13 and further via the outlet opening 19 as far as exhaust openings 140 in the housing 11 (see FIG. With the air flow, the remaining combustion gases are released into the environment.
  • the fan means 41 is thereby moved by the energy storage unit 147 for a certain, set in the energy storage unit 147 time. Thereafter, the energy storage unit 147 blocks the output member 48 again until the input member 46 is rotated again in the direction of the arrow 65.
  • the piston 44 can be moved back via the spring element 57 in its apparent from Fig. 1 and 2 starting position.
  • the input element 46 is now rotated in the direction of the arrow 66 in the direction of the arrow 66 transmitting member 45 in the direction of the arrow 67, wherein the input member 46 has a freewheel in this direction of rotation.
  • a manually operable handle 144 can still be provided on the combustion-energy-driven drive unit 42, by means of which the piston 44 can be moved. Instead of attacking the piston 44, the handle could but z. B. also attack directly on the input element 46 and actuate this.
  • the spring element 57 could also act as an energy store.
  • an energy storage unit 147 would then be arranged only a transmission between the transmission member 45 and the fan 41, wherein the freewheel of the input member 46 would then be provided in the direction of rotation of the arrow 65 (Fig. 2).
  • the transmission with the input element 46 and the output element 48 would then operate the fan means 41 on the shaft 49 via the spring element 57 as soon as the blocking element 30 releases it.
  • a freewheel for the shaft 49 can be formed on the input wheel 50.
  • the hand-held, combustion-powered setting tool 10 shown in FIGS. 4 and 5 initially differs from the one described above in that the combustion-chamber housing 12 is designed as a sleeve and is mounted so as to be displaceable relative to the piston guide 17.
  • the connecting rod formed as a rod 25, engages at one end to the combustion chamber housing 12, while its opposite end is connected to the Anpressiqueler 58.
  • the fan means 41 is arranged in the combustion chamber 13 and held with its shaft 49 at a pivot bearing 56 on the combustion chamber rear wall 14.
  • the metering device 22 has here only a metering valve, since the combustion chamber 13 is not shared.
  • the combustion energy-driven drive unit 42 essentially corresponds to that already described with reference to FIGS. 1 to 3.
  • the only difference is that the energy storage unit 147 is equipped with a switching means 53, via which the output member 48 can be switched.
  • This switching means 53 is designed as an adjusting lever, which is pivotally connected to a bearing point 55 with a switching linkage 54 which is fixed to the combustion chamber housing 12.
  • the setting tool 10 has already been pressed against a substrate U, as a result of which the pressure extrusion 25 has been displaced in the direction of the arrow 71.
  • the combustion chamber housing 12 and the combustion chamber sleeve was also offset in the direction of arrow 71, whereby the outlet port 19 and the inlet port 15 were closed.
  • the switching means 53 has also been pivoted in the direction of the arrow 71 into its first position 51, whereby the output element 48 of the energy storage unit 147 has been activated.
  • the output element 48 now rotates and transmits this rotation via the input gear 50 to the shaft 49, which carries the fan means 41, which rotates in the direction of the rotary arrow 68.
  • the fan means 41 By the rotation of the fan means 41, a turbulent flow regime is generated in the combustion chamber 13, whereby the energy yield is increased in an ignition and combustion of the enclosed in the combustion chamber 13 air-fuel mixture.
  • the fan means 41 may, as already described above, be operated for a certain time, wherein the energy storage unit 147 automatically shuts off after the lapse of time, or it is turned off upon actuation of the trigger switch 38. This can be z. B. via a not shown here further switching element of the energy storage unit 147, which is coupled to the trigger switch 38.
  • Fig. 5 the setting tool 10 has been lifted after the successful setting process again from the ground.
  • the combustion chamber housing 12 or the combustion chamber sleeve was displaced with the pressure strand 25 in the direction of the arrow 70, wherein the inlet opening 15 and the outlet opening 19 were opened again.
  • Resetting the Anpressstrangs 25 and the combustion chamber housing 12 in the direction of the arrow 70 may, for. B. via a not shown in the drawings spring element.
  • the combustion chamber housing 12 and the shift linkage 54 has been added in the direction of the arrow 70 and the switching means 53 is transferred to its second position 52, whereby the output element 48 of the energy storage unit 147 has been reactivated.
  • the output member 48 rotates and transmits this rotation via the input gear 50 to the shaft 49, which carries the fan means 41, which rotates in the direction of the rotary arrow 68.
  • the rotation of the fan means 41 produces an air flow flowing in the direction of the arrows 69 from the air inlet 39 into the combustion chamber 13 and further via the outlet opening 19 as far as the exhaust openings 140 in the housing 11.
  • the airflow causes the still existing combustion gases to escape into the environment issued.
  • the fan means 41 is thereby moved by the energy storage unit 147 for a certain, set in the energy storage unit 147 time. Thereafter, the energy storage unit 147 blocks the output member 48 again until the switching means 53 is again transferred to its first position 51.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP06120938A 2005-10-05 2006-09-20 Appareil de scellement à combustion Withdrawn EP1772234A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005000134A DE102005000134A1 (de) 2005-10-05 2005-10-05 Brennkraftbetriebenes Setzgerät

Publications (1)

Publication Number Publication Date
EP1772234A1 true EP1772234A1 (fr) 2007-04-11

Family

ID=37560702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06120938A Withdrawn EP1772234A1 (fr) 2005-10-05 2006-09-20 Appareil de scellement à combustion

Country Status (5)

Country Link
US (1) US7424870B2 (fr)
EP (1) EP1772234A1 (fr)
JP (1) JP2007098568A (fr)
AU (1) AU2006213934B2 (fr)
DE (1) DE102005000134A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2491233A1 (fr) * 2009-10-23 2012-08-29 Joseph S. Adams Moteur d'outil à gaz
EP2457697A3 (fr) * 2010-11-25 2015-10-07 HILTI Aktiengesellschaft Appareil d'enfoncement

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006000127B4 (de) * 2006-03-22 2015-05-13 Hilti Aktiengesellschaft Brennkraftbetriebenes Setzgerät
JP4935978B2 (ja) * 2006-08-09 2012-05-23 マックス株式会社 ガス燃焼式打込み工具における燃焼室のバルブ装置
US8875969B2 (en) * 2007-02-09 2014-11-04 Tricord Solutions, Inc. Fastener driving apparatus
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
FR2953752B1 (fr) * 2009-12-11 2012-01-20 Prospection & Inventions Outil de fixation a moteur a combustion interne a butee de chambre unique d'ouverture et de fermeture
DE102010062955A1 (de) * 2010-12-13 2012-06-14 Hilti Aktiengesellschaft Eintreibgerät
EP3034238A1 (fr) * 2014-12-19 2016-06-22 HILTI Aktiengesellschaft Appareil d'enfoncement doté de chambre de combustion réglable
CN110053000A (zh) * 2018-01-19 2019-07-26 美克司株式会社 打入工具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967771A (en) * 1974-12-16 1976-07-06 Smith James E Self-contained impact tool
US4403722A (en) * 1981-01-22 1983-09-13 Signode Corporation Combustion gas powered fastener driving tool
US20040104258A1 (en) * 2002-11-26 2004-06-03 Bernard Favre-Bulle Fuel driven setting tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617671C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
DE19947464A1 (de) * 1999-10-02 2001-04-05 Hilti Ag Bolzensetzgerät zum Eintreiben von Bolzen oder dergleichen in Bauteile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967771A (en) * 1974-12-16 1976-07-06 Smith James E Self-contained impact tool
US4403722A (en) * 1981-01-22 1983-09-13 Signode Corporation Combustion gas powered fastener driving tool
US20040104258A1 (en) * 2002-11-26 2004-06-03 Bernard Favre-Bulle Fuel driven setting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2491233A1 (fr) * 2009-10-23 2012-08-29 Joseph S. Adams Moteur d'outil à gaz
EP2491233A4 (fr) * 2009-10-23 2016-03-09 Joseph S Adams Moteur d'outil à gaz
EP2457697A3 (fr) * 2010-11-25 2015-10-07 HILTI Aktiengesellschaft Appareil d'enfoncement

Also Published As

Publication number Publication date
US7424870B2 (en) 2008-09-16
DE102005000134A1 (de) 2007-04-12
JP2007098568A (ja) 2007-04-19
AU2006213934A1 (en) 2007-04-19
US20070074684A1 (en) 2007-04-05
AU2006213934B2 (en) 2010-06-17

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