EP0223740A2 - Outil de scellement actionné par de la poudre - Google Patents

Outil de scellement actionné par de la poudre Download PDF

Info

Publication number
EP0223740A2
EP0223740A2 EP86810504A EP86810504A EP0223740A2 EP 0223740 A2 EP0223740 A2 EP 0223740A2 EP 86810504 A EP86810504 A EP 86810504A EP 86810504 A EP86810504 A EP 86810504A EP 0223740 A2 EP0223740 A2 EP 0223740A2
Authority
EP
European Patent Office
Prior art keywords
piston
guide
channel
bolt
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.)
Granted
Application number
EP86810504A
Other languages
German (de)
English (en)
Other versions
EP0223740B1 (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-powered 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 in the 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 the ignition-ready starting position by the exhaust gases.
  • the object is achieved in that a closure slide is provided for closing the channel.
  • the closure slide 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 locking slide is preferably designed as a sleeve which can be displaced relative to the piston guide.
  • 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 rifle protrudes telescopically slidably 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 locking slide 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 locking slide.
  • the bolt guide projects over the housing for safety reasons.
  • the slide valve keeps the channel closed.
  • the device is pressed against a surface with the pin guide, causing the pin guide and thus the locking slide to move backwards relative to the piston guide. This opens the channel by the slide valve.
  • the driving-in process of the bolt causes recoil forces, which move the piston guide together with the housing towards the rear relative to the locking slide and the bolt guide.
  • the channel is closed again by the locking slide 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 locking slide and the pin guide are held in the rest position, for example by spring force.
  • the closing slide has a closing lamella for closing a vent opening from the channel into the atmosphere.
  • the closing 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 ventilation opening is released from the locking lamella. The gases present in the piston guide when the drive piston is returned can now escape via the ventilation opening via the rear opening of the piston guide and the zone of the channel connected to it, and thus form no obstruction to the return process.
  • the setting tool shown in FIG. 1 has a housing designated overall by 1, which consists of an outer shell 2 with a laterally protruding handle 3, a support tube 4 projecting 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 bushing 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 bushing 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 this to the front.
  • the shaft 21 passes through a stop ring 22 for the driving piston 18, which is supported on the rear in the pin guide 11 and slidably protrudes into the opening 23 of the pin 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 come together from the projecting position shown in FIG. 1 moved with the sleeve 12 in the rear position of 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.
  • 16 highly compressed propellant gases are formed 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.
  • 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 sleeve 12 telescopically comes into contact with an inside sealing bead 33 of the support tube 4 of the housing 1. Since the sleeve 12 is also in sealing contact with the bolt guide 11, the front zone of the Channel 26 and the guide bore 17 of the pin guide 11 created 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)
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 true EP0223740A2 (fr) 1987-05-27
EP0223740A3 EP0223740A3 (en) 1988-06-08
EP0223740B1 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)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621110A1 (fr) * 1993-04-17 1994-10-26 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0638395A1 (fr) * 1993-04-24 1995-02-15 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre
EP0780195A1 (fr) * 1995-12-21 1997-06-25 HILTI Aktiengesellschaft Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraînement
EP0798084A1 (fr) * 1996-03-26 1997-10-01 Societe De Prospection Et D'inventions Techniques Spit Appareil d'entraînement de tampon par masselotte à retour automatique en position du tir
DE19617672C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
DE19617671C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
US6824035B1 (en) 1998-01-19 2004-11-30 Agodzinski Marek Power operated piston tool with piston automatic return

Families Citing this family (14)

* 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
DE4433410A1 (de) * 1994-09-20 1996-03-21 Hilti Ag Bolzensetzgerät
DE19544105A1 (de) * 1995-11-27 1997-05-28 Hilti Ag Bolzensetzgerät mit Stoßdämpfer
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

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621110A1 (fr) * 1993-04-17 1994-10-26 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0638395A1 (fr) * 1993-04-24 1995-02-15 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre
US5767434A (en) * 1995-12-21 1998-06-16 Hilti Aktiengesellschaft Explosive powder charge operated setting tool
EP0780195A1 (fr) * 1995-12-21 1997-06-25 HILTI Aktiengesellschaft Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraînement
CN1061584C (zh) * 1995-12-21 2001-02-07 希尔蒂股份公司 火药力工作的射钉枪
EP0798084A1 (fr) * 1996-03-26 1997-10-01 Societe De Prospection Et D'inventions Techniques Spit Appareil d'entraînement de tampon par masselotte à retour automatique en position du tir
FR2746690A1 (fr) * 1996-03-26 1997-10-03 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
EP0805002A3 (fr) * 1996-05-03 1998-01-14 Beto-Tornado GmbH Appareil de scellement de chevilles actionné par la poudre
EP0805003A3 (fr) * 1996-05-03 1998-02-04 Beto-Tornado GmbH Appareil de scellement de chevilles actionné par la poudre
DE19617672C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
US6085958A (en) * 1996-05-03 2000-07-11 Berner Gmbh Explosive powder charge operated bolt-setting tool
US6123242A (en) * 1996-05-03 2000-09-26 Berner Gmbh Explosive powder charge operated bolt-setting tool
US6824035B1 (en) 1998-01-19 2004-11-30 Agodzinski Marek Power operated piston tool with piston automatic return

Also Published As

Publication number Publication date
DE3540953A1 (de) 1987-05-21
EP0223740B1 (fr) 1990-08-08
EP0223740A3 (en) 1988-06-08
DE3673341D1 (de) 1990-09-13
JPS62120985A (ja) 1987-06-02
JPH0626797B2 (ja) 1994-04-13
US4711385A (en) 1987-12-08

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