EP0223740B1 - Outil de scellement actionné par de la poudre - Google Patents

Outil de scellement actionné par de la poudre Download PDF

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Publication number
EP0223740B1
EP0223740B1 EP86810504A EP86810504A EP0223740B1 EP 0223740 B1 EP0223740 B1 EP 0223740B1 EP 86810504 A EP86810504 A EP 86810504A EP 86810504 A EP86810504 A EP 86810504A EP 0223740 B1 EP0223740 B1 EP 0223740B1
Authority
EP
European Patent Office
Prior art keywords
guide
piston
duct
setting tool
piston guide
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.)
Expired - Lifetime
Application number
EP86810504A
Other languages
German (de)
English (en)
Other versions
EP0223740A2 (fr
EP0223740A3 (en
Inventor
Peter Jochum
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 EP0223740A2 publication Critical patent/EP0223740A2/fr
Publication of EP0223740A3 publication Critical patent/EP0223740A3/de
Application granted granted Critical
Publication of EP0223740B1 publication Critical patent/EP0223740B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil

Definitions

  • the invention relates to a powder-operated setting tool with a piston guide, within which a driving piston can be driven from a rear starting position into a front end position by means of propellant gases of a propellant charge, the piston guide at the rear end a receptacle for the propellant charge and in the rear and front area through a channel with one another has connected openings, the channel being formed between the piston guide and a housing surrounding the latter, and the rear opening being closed in its rear starting position with respect to the receptacle for the propellant charges from the driving piston.
  • the invention has for its object to provide a powder-operated bolt-actuating device, the driving piston of which is reliably brought into ignition-ready starting positions by the exhaust gases.
  • the sleeve closes the channel.
  • the zone of the channel in front of the closure point and the front area of the guide bore thus form a storage space which is closed to the atmosphere.
  • the exhaust gases compressed therein are fully available for returning the driving piston to the ignition-ready initial position.
  • the bushing is a rotationally symmetrical part that is easy to produce and is particularly suitable for a channel in the form of an annular gap surrounding the piston guide.
  • the sleeve protrudes telescopically into the annular gap between the piston guide and the housing. Wall parts of the sleeve and housing or piston guide work together as locking points that can be contacted.
  • the bushing is advantageously arranged on a bolt guide that is displaceable relative to the piston guide and can be supported on the base.
  • the sliding movements of the bolt guide are also used to control the bush.
  • the bolt guide projects over the housing for safety reasons.
  • the sleeve keeps the channel closed.
  • the device is pressed against a surface with the pin guide, which causes the pin guide and thus the bush to move backwards relative to the piston guide.
  • the can is opened by the can.
  • the driving-in process of the pin causes recoil forces which move the piston guide together with the housing relative to the bush and the pin guide to the rear.
  • the canal is closed again by the sleeve and the aforementioned closed storage space is created.
  • the exhaust gases compressed in the storage space return the driving piston to the ignition-ready initial position.
  • the bush and the pin guide are held in the rest position, for example by spring force.
  • the bushing has a closure lamella for closing a ventilation opening opening into the atmosphere from the channel.
  • the closure lamella keeps the ventilation opening closed, so that no exhaust gases can escape into the atmosphere via the open channel. In this way, a maximum of the exhaust gases is used for the complete return of the driving piston.
  • the vent opening is released from the closure plate. The gases present in the piston guide when the drive piston is returned can now escape through the rear opening of the piston guide and the zone of the channel connected to it via the ventilation opening and thus do not constitute an obstacle to the return process.
  • the setting tool shown in FIG. 1 has a housing denoted overall by 1, which consists of an outer shell 2 with a handle 3 protruding laterally, a support tube 4 protruding beyond the shell 2 and a muzzle-side guide tube 5.
  • a trigger 6 for triggering the setting process is arranged on handle 3.
  • a propellant charge magazine which is denoted overall by 7 and protrudes from the housing 1 and is composed of a carrier strip 8 and propellant charges 9 sitting thereon.
  • a tubular bolt guide 11 which is displaceable relative to the housing 1, projects above the guide tube 5.
  • the bolt guide 11 is integrally connected to the rear by a locking slide designed as a bushing 12.
  • the bushing 12 is mounted on the front side in the guide tube 5 and on the rear side in the support tube 4 in a sealing and displaceable manner.
  • the sleeve 12 has longitudinal slots 13 on the front side and openings 14 on the rear side.
  • a piston guide, designated overall by 15, projects into the sleeve 12 from the rear. This sits immovably in the support tube 4 of the housing 1.
  • the driving piston 18 consists of a rear-side head 19, which is sealingly mounted in the guide bore 17, and a shaft 21 with a smaller circular cross-section adjoining the latter.
  • the shaft 21 passes through a stop ring 22 for the driving piston 18, which is supported in the bolt guide 11 on the rear side, and slidably projects into the orifice bore 23 of the bolt guide 11 for sealing and guiding purposes.
  • a bolt 24 to be inserted is inserted into the mouth bore 23.
  • the device with the mouth at the fastening point is pressed against a base 25.
  • the bolt guide 11 has shifted from the protruding position shown in FIG. 1 together with the bush 12 into the rear position which can be seen in FIG. 2.
  • the drive piston 18 is also in its ignitable rear starting position.
  • a channel 26 which is essentially in the form of an annular gap between the piston guide 15 and the support tube 4 of the housing 1, is connected via the longitudinal slots 13 to front openings 27 of the piston guide 15 and via the openings 14 to the rear openings 28 of the piston guide 15.
  • the head 19 of the driving piston 18 separates the rear opening 28 from the receptacle 16.
  • An annular closure lamella 29 sealingly covers a vent opening 31 opening into the atmosphere.
  • the setting process is triggered by igniting the propellant charge 9.
  • This forms 16 highly compressed propellant gases in the receptacle, which accelerate the propellant piston 18 to the front under the action of the rear end face of the head 19.
  • the head 19 releases the rear openings 28 in the piston guide 15.
  • exhaust gases flow from the receptacle 16 via the openings 28 into the channel 26 and from here via the front openings 27 in front of the head 19 into the guide bore 17, as is illustrated by a flow arrow in FIG. 3.
  • the reaction forces which act as a recoil on the parts connected to the housing 1 so as to be displaceable during the driving-in process lead to a displacement of the housing 1 and the piston guide 15 towards the rear relative to the pin guide 11 and the bush 12 towards the end of the driving-in process.
  • An enlarged zone 32 of the bushing 12 comes into telescopic contact with an inside sealing bead 33 of the support tube 4 of the housing 1. Since the bushing 12 is also in sealing contact with the bolt guide 11, through the front zone of the channel 26 and the guide bore 17 of the bolt guide 11 creates a closed storage space, as can be seen in FIG. 4.
  • the compressed exhaust gases present here bring about a reliable return of the driving piston 18 into its ignition-ready initial position.
  • the remaining gases located behind the head 19 in the piston guide 15 can escape through the rear openings 28, the adjacent rear zone of the channel 26 and the ventilation opening 31, as indicated by a flow arrow, since the closure plate 29 when the housing 1 is moved due to the recoil has released the vent 31.

Landscapes

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

Claims (3)

1. Appareil de scellement actionné par l'énergie de la poudre, comprenant un guidage de piston (15) à l'intérieur duquel un piston-poussoir (18) peut être propulsé, au moyen de gaz propulseurs d'une charge propulsive (9), d'une position de départ postérieure dans une position de fin de course antérieure, le guidage de piston (15) présente à l'extrémité postérieure un logement (16) pour la charge propulsive (9) ainsi que, dans les régions postérieure et antérieure des orifices (27, 28) communiquant par un canal (26), le canal (26) étant conformé entre le guidage de piston (15) et un carter (1) entourant celui-ci, et l'orifice postérieur (28) en face du logement (16) pour les charges propulsives (9) étant obturé par le piston-poussoir (18) dans sa position de départ postérieure caractérisé en ce que, pour l'obturation du canal (26), il est prévu une douille (12) déplaçable par rapport au guidage de piston (15) et dépassant de manière télescopique dans le canal (26) de telle façon que la zone du canal (26) située devant le point d'obturation et la région antérieure de l'alésage de guidage (17) forment un espace d'accumulation fermé vis-à-vis de l'atmosphère.
2. Appareil de scellement selon la revendication 1, caractérisé en ce que la douille (12) est disposée sur un guidage de cheville (11) qui peut être déplacé par rapport au guidage de piston (15) et prendre appui sur la surface de réception (25).
3. Appareil de scellement selon l'une des revendications 1 ou 2, caractérisé en ce que la douille (12) comporte une lamelle d'obturation (29) pour la fermeture d'un évent (31) qui met le canal (26) en communication avec l'atmosphère.
EP86810504A 1985-11-19 1986-11-04 Outil de scellement actionné par de la poudre Expired - Lifetime EP0223740B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540953 DE3540953A1 (de) 1985-11-19 1985-11-19 Pulverkraftbetriebenes bolzensetzgeraet
DE3540953 1985-11-19

Publications (3)

Publication Number Publication Date
EP0223740A2 EP0223740A2 (fr) 1987-05-27
EP0223740A3 EP0223740A3 (en) 1988-06-08
EP0223740B1 true EP0223740B1 (fr) 1990-08-08

Family

ID=6286351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810504A Expired - Lifetime EP0223740B1 (fr) 1985-11-19 1986-11-04 Outil de scellement actionné par de la poudre

Country Status (4)

Country Link
US (1) US4711385A (fr)
EP (1) EP0223740B1 (fr)
JP (1) JPH0626797B2 (fr)
DE (2) DE3540953A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122873A1 (de) * 1991-07-11 1993-01-14 Hilti Ag Pulverkraftbetriebenes setzgeraet mit magazin fuer befestigungselemente
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
DE4312567A1 (de) * 1993-04-17 1994-10-20 Hilti Ag Pulverkraftbetriebenes Setzgerät
DE4313504A1 (de) * 1993-04-24 1994-10-27 Hilti Ag Pulverkraftbetriebenes Setzgerät
DE4433410A1 (de) * 1994-09-20 1996-03-21 Hilti Ag Bolzensetzgerät
DE19544105A1 (de) * 1995-11-27 1997-05-28 Hilti Ag Bolzensetzgerät mit Stoßdämpfer
DE19547859A1 (de) * 1995-12-21 1997-06-26 Hilti Ag Pulverkraftbetriebenes Setzgerät
FR2746690B1 (fr) * 1996-03-26 1998-05-29 Spit Soc Prospect Inv Techn Appareil d'entrainement de tampon par masselotte a retour automatique en position du tir
DE19617671C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
DE19617672C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
PL185374B1 (pl) 1998-01-19 2003-04-30 Lagodzinska Boguslawa Samorepetujący osadzak wybuchowy
US6092710A (en) * 1998-06-09 2000-07-25 Berner Gmbh Explosive powder charge operated bolt-setting tool
US6059162A (en) * 1998-10-16 2000-05-09 Illinois Tool Works Inc. Exhaust baffle and spring assisted reset and dampener for powder actuated tool
DE19950349B4 (de) * 1999-10-19 2006-07-27 Hilti Ag Setzgerät für Befestigungselemente
DE10105886C2 (de) * 2001-02-09 2002-12-05 Hilti Ag Kolbenhalterung
US6695192B1 (en) * 2002-09-30 2004-02-24 Illinois Tool Works Inc. Adjustable depth control for fastener driving tool
US7287679B2 (en) * 2004-07-28 2007-10-30 Powers Products Iii, Llc Powder activated setting tool piston retainer arrangement and method
TWM362088U (en) * 2009-04-09 2009-08-01 Cheng-Ho Lee Gunpowder nail-hitting apparatus capable of adjusting nail-hitting force
JP5826581B2 (ja) * 2010-10-18 2015-12-02 日本工機株式会社 ガス圧装置、ガス圧装置を用いる破砕方法及びガス圧装置の保護カバー
FR2993810B1 (fr) * 2012-07-25 2014-07-11 Illinois Tool Works Outil de fixation par tir indirect, a support de detente anti-tir
US10926389B2 (en) * 2018-07-31 2021-02-23 Chung-Heng Lee Powder-actuated tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177087B (de) * 1961-04-28 1964-08-27 Tornado Gmbh Geraet zum Eintreiben von Bolzen u. dgl.
NO116033B (fr) * 1966-09-27 1969-01-13 Gunnebo Bruks Ab
US3456744A (en) * 1967-11-24 1969-07-22 Samuel Altschuler Vibrationless pneumatic tool
US3604311A (en) * 1968-07-19 1971-09-14 Umberto Monacelli Compressed air nailing machine
DE1907069A1 (de) * 1969-02-13 1970-10-22 Dieter Haubold Ind Nagelgeraet Mit Druckluft betriebenes Schlaggeraet,insbesondere zum Eintreiben von Befestigungsmitteln
US3645091A (en) * 1970-08-17 1972-02-29 Valery Vasilievich Ivanov Gun-type device for mechanical assembly work utilizing energy of explosion
US3715069A (en) * 1971-07-08 1973-02-06 Textron Inc Pneumatically actuated fastener driving device with improved sleeve valve for controlling the pressure beneath the drive piston
US3744240A (en) * 1971-11-05 1973-07-10 Olin Corp Fastener driving tool
US4030655A (en) * 1971-12-22 1977-06-21 Senco Products, Inc. Improved fastener applying device
US4196834A (en) * 1978-12-11 1980-04-08 Olin Corporation Noise reducer for powder actuated fastening tool
SU982894A2 (ru) * 1979-02-20 1982-12-23 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов И Строительно-Отделочных Машин Пневматическа машина ударного действи

Also Published As

Publication number Publication date
EP0223740A2 (fr) 1987-05-27
JPS62120985A (ja) 1987-06-02
JPH0626797B2 (ja) 1994-04-13
DE3540953A1 (de) 1987-05-21
DE3673341D1 (de) 1990-09-13
US4711385A (en) 1987-12-08
EP0223740A3 (en) 1988-06-08

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