EP0780195A1 - Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraînement - Google Patents

Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraînement Download PDF

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Publication number
EP0780195A1
EP0780195A1 EP96810713A EP96810713A EP0780195A1 EP 0780195 A1 EP0780195 A1 EP 0780195A1 EP 96810713 A EP96810713 A EP 96810713A EP 96810713 A EP96810713 A EP 96810713A EP 0780195 A1 EP0780195 A1 EP 0780195A1
Authority
EP
European Patent Office
Prior art keywords
guide
piston
receptacle
housing part
channel
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
EP96810713A
Other languages
German (de)
English (en)
Other versions
EP0780195B1 (fr
Inventor
Anton Hirtl
Markus Sprenger
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 EP0780195A1 publication Critical patent/EP0780195A1/fr
Application granted granted Critical
Publication of EP0780195B1 publication Critical patent/EP0780195B1/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
    • 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 arranged in a receptacle of a housing part and having a guide bore for a driving piston, which can be driven by means of propellant gases from a propellant charge from a rear starting position into a front end position in the direction of setting, one connected to a cartridge receptacle of the housing part, between the receptacle Provided part of the housing and the piston guide channel, which opens into the guide bore via an opening in the piston guide, a passage opening in communication with the atmosphere in the receptacle of the housing part and a valve device arranged in the channel, which the formation of the areas of the channel on the setting direction and the Guide hole comprehensive, closed to the atmosphere serves storage space.
  • a powder-operated setting tool with a housing part a piston guide that is displaceable relative to a receptacle of the housing part with a guide bore for a driving piston and a channel connected to a cartridge receptacle is known.
  • This channel is formed by the piston guide and the receptacle of the housing part surrounding the piston guide at a radial distance. Via an opening in the piston guide. the channel is connected to the pilot hole.
  • a valve device which serves to form a storage space which is closed to the atmosphere and comprises the regions of the channel on the setting direction and the guide bore.
  • the valve device is formed by an increase in the diameter of the piston guide and a narrowing of the cross section of the receptacle of the housing part within the channel.
  • the piston guide is displaced in relation to the receptacle of the housing part in the setting direction.
  • the volume of the channel or the storage space is increased, so that the pressure of the compressed propellant gases is reduced.
  • the propellant piston can only be returned to its starting position at a slow speed. In particular in the case of a fast setting sequence of fastening elements, there can be a risk that the subsequent setting process will be initiated before the driving piston has reached its starting position.
  • the invention has for its object to provide a powder-powered setting tool, which is simple in construction and not susceptible to faults and has a piston return acting by using the propellant gases, which ensures a safe and quick return of the propellant piston to its initial position even with a quick setting sequence.
  • the object is achieved in that the piston guide in the area of the cartridge receptacle has a passage which can be closed by the driving piston and communicates with the passage opening, and the valve device is designed as a check valve which closes through the driving gases in the storage space.
  • the use of a check valve which closes due to the propellant gases in the storage space enables the creation of a channel or a storage space with a constant volume.
  • the propellant gas pressure building up in the storage space remains constant when the channel is closed.
  • the driving piston When the driving piston is accelerated in the setting direction, the driving piston releases the passage.
  • the remaining propellant gases which are located in the region of the guide bore and / or the housing part on the cartridge receiving side, can reach the atmosphere via the passage and the passage opening.
  • the check valve can preferably be set into an open position by the propellant gases flowing out of the cartridge receptacle against the force of a spring. If the propellant gas pressure of the propellant gases flowing out of the cartridge receptacle is less than the pressure of the propellant gases located in the storage space and the force of the spring, the channel is closed quickly with the aid of the spring.
  • a spring acts on a piston which can be set into an open position by the propellant gases that emanate from the cartridge receptacle.
  • FIG. 1 schematically shows a powder-operated setting tool according to the invention, which comprises a housing 1, a housing part 7 axially displaceable relative to the housing 1 with a receptacle 33, a handle 2, an actuating switch 3, an element guide 4 in the area on the setting direction and a check valve 5 having.
  • a propellant charge magazine 6 protrudes from the housing 1.
  • the element guide 4 serves to receive and guide fastening elements (not shown) before and during a setting process.
  • FIG. 2 shows an enlarged section of a pressed-on, powder-powered setting device before a setting process.
  • An axially displaceable housing part 7 with a receptacle 33 is arranged in the housing 1.
  • a piston guide 13 with a guide bore 8 for a driving piston 9, which can be displaced from a rear starting position into a front end position on the setting direction by means of propellant gases of a propellant charge 12.
  • the piston guide 13 is axially fixed in the receptacle 33.
  • the receptacle 33 is provided with a passage opening 14 and the piston guide 13 with a passage 20.
  • the passage opening 14 and the passage 20 are arranged essentially coaxially and run essentially radially to the longitudinal extent of the piston guide 13 or the housing part 7.
  • the guide bore 8 and the interior of the housing part 7 on the cartridge receiving side are connected to the atmosphere in this way.
  • the free end of the housing part 7 lying opposite the setting direction is provided with a cartridge receptacle 10 which is connected to the receptacle 33 of the housing part 7 via a bore 11.
  • the cartridge receptacle 10 overlaps a propellant charge 12 located in a cartridge.
  • the cartridge is arranged on a strip-shaped propellant charge magazine 6 which can be displaced in a guide channel 23 of the housing 1 essentially perpendicular to the longitudinal extent of the housing part 7.
  • the axial displacement of the housing part 7 relative to the housing 1 corresponds at least to the height of the cartridge measured in the longitudinal direction of the housing part 7.
  • the housing part 7 has a reduced inner diameter which is matched to the cross section of a sealing piston 15 of the driving piston 9 and which essentially corresponds to the diameter of the guide bore 8 of the piston guide 13
  • a channel 18a, 18b formed by the piston guide 13 and the receptacle 33 of the housing part 7 is connected to the guide bore 8 via an opening 17 which is arranged in the area of the piston guide 13 on the setting direction.
  • the piston guide 13 is supported radially via two guide areas 21, 22 on an inner wall of the receptacle 33. Between the guide regions 21, 22 and in the end region on the cartridge receiving side, the piston guide 13 has a smaller wall thickness, so that on the outside of the piston guide 13 there are two circumferential free spaces which form the channel 18a, 18b and are separated from one another by the guide region 22.
  • Both channels 18a, 18b have through bores 24a, 24b running radially to the longitudinal extent of the piston guide 13 and essentially parallel to one another, which open into a check valve 5 arranged on the outside of the receptacle 33 of the housing part 7.
  • a flow channel 27 arranged in the check valve 5 is essentially U-shaped and connects both channels 18a, 18b to one another. Inside the check valve 5, the flow channel 27 has a larger cross section on the side facing the channel 18a than on the side facing the channel 18b. In this way, a shoulder 30 is formed which interacts with a sealing cone 29 of a piston 25.
  • the piston 25 can be displaced essentially at right angles to the longitudinal axis of the through bores 24a, 24b and is pressed by a spring 26 against the shoulder 30 into a closed position.
  • a receiving bore 31 of the check valve 5 receives a shaft 28 of the piston 25 and guides it axially displaceably.
  • an elastic damping element 16 is arranged within the piston guide 13, the function of which is to dampen the speed of the propelling piston 9 when it is accelerated with excessive energy.
  • a guide opening 32 of the damping element 16 is matched to the diameter of a cylindrical shaft 19 of the drive piston 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP96810713A 1995-12-21 1996-10-25 Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraínement Expired - Lifetime EP0780195B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547859 1995-12-21
DE19547859A DE19547859A1 (de) 1995-12-21 1995-12-21 Pulverkraftbetriebenes Setzgerät

Publications (2)

Publication Number Publication Date
EP0780195A1 true EP0780195A1 (fr) 1997-06-25
EP0780195B1 EP0780195B1 (fr) 2000-05-03

Family

ID=7780828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810713A Expired - Lifetime EP0780195B1 (fr) 1995-12-21 1996-10-25 Outil de scellement actionné par poudre avec une soupape de non retour pour retourner le piston d'entraínement

Country Status (8)

Country Link
US (1) US5767434A (fr)
EP (1) EP0780195B1 (fr)
JP (1) JPH09183080A (fr)
KR (1) KR100404357B1 (fr)
CN (1) CN1061584C (fr)
AU (1) AU704410B2 (fr)
DE (2) DE19547859A1 (fr)
TW (1) TW324678B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0805002A3 (fr) * 1996-05-03 1998-01-14 Beto-Tornado GmbH Appareil de scellement de chevilles actionné par la poudre

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829660A (en) * 1995-12-07 1998-11-03 Stanley-Bostitch, Inc. Automatic-type fastener driving device
US6062455A (en) * 1998-08-06 2000-05-16 Anthony C. Giannuzzi Cartridge strip magazine for powder-actuated fastener setting tool
US6321968B1 (en) * 1998-09-10 2001-11-27 Senco Products, Inc. Combustion chamber design for propellant charges and power adjustment means
AUPQ420099A0 (en) * 1999-11-23 1999-12-16 Metal Storm Limited Driver for power tools
US6760452B2 (en) * 2002-10-24 2004-07-06 Visteon Global Technologies, Inc. Multi-channel audio signal limiter with shared clip detection
DE10253668B4 (de) * 2002-11-19 2015-03-05 Hilti Aktiengesellschaft Brennkraftbetriebenes Setzgerät
DE10259567A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Brennkraftbetriebenes Setzgerät
FR2855542B1 (fr) * 2003-05-26 2005-08-05 Freyssinet Int Stup Procede de surblocage d'au moins un toron dans un bloc d'ancrage et systeme de surblocage d'au moins un toron dans un bloc d'ancrage
DE10360371A1 (de) * 2003-12-22 2005-07-28 Hilti Ag Brennkraftbetriebenes Setzgerät
ITMI20061022A1 (it) 2006-05-24 2007-11-25 Remington Arms Co Inc Arma da fuoco azionata mediante gas
US7946214B2 (en) * 2007-08-29 2011-05-24 Ra Brands, L.L.C. Gas system for firearms
US8250964B2 (en) 2007-08-29 2012-08-28 Ra Brands, L.L.C. Gas system for firearms
US8109194B2 (en) * 2009-03-20 2012-02-07 Ra Brands, L.L.C. Clamped gas block for barrel
USD661364S1 (en) 2010-06-21 2012-06-05 Ra Brands, L.L.C. Gas block
CA2765151A1 (fr) * 2009-06-22 2010-12-29 Ra Brands, L.L.C. Dispositif de retenue et de debranchement de regulateur de prise d'event
US8176837B1 (en) 2009-10-11 2012-05-15 Jason Stewart Jackson Firearm operating rod
US9261314B1 (en) 2010-07-19 2016-02-16 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
US8640598B1 (en) 2010-07-19 2014-02-04 Jason Stewart Jackson Sleeve piston for actuating a firearm bolt carrier
EP2886257A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
US9562730B2 (en) 2014-01-13 2017-02-07 Ra Brands, L.L.C. Replaceable feed ramp
EP2923797A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre
EP3184252A1 (fr) * 2015-12-22 2017-06-28 HILTI Aktiengesellschaft Outil de scellement a moteur thermique et procede de fonctionnement d'un outil de scellement
CN114952728B (zh) * 2021-02-26 2025-06-27 台州市大江实业有限公司 一种射钉枪及其气缸单元

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744240A (en) * 1971-11-05 1973-07-10 Olin Corp Fastener driving tool
GB2171351A (en) * 1985-02-27 1986-08-28 Tench Main Limited Fastener dispensing and affixing device
EP0223740A2 (fr) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0467835A2 (fr) * 1990-07-17 1992-01-22 HILTI Aktiengesellschaft Outil de scellement actionné par l'énergie de la poudre
DE4313504A1 (de) 1993-04-24 1994-10-27 Hilti Ag Pulverkraftbetriebenes Setzgerät
JPH0825246A (ja) * 1994-07-18 1996-01-30 Kanematsu Nnk Corp 空気圧式固着具打込機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL109762C (fr) * 1961-02-02
US3645091A (en) * 1970-08-17 1972-02-29 Valery Vasilievich Ivanov Gun-type device for mechanical assembly work utilizing energy of explosion
US4655380A (en) * 1983-05-24 1987-04-07 Pneutek, Inc. Powder-actuated fastener-driving tool

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744240A (en) * 1971-11-05 1973-07-10 Olin Corp Fastener driving tool
GB2171351A (en) * 1985-02-27 1986-08-28 Tench Main Limited Fastener dispensing and affixing device
EP0223740A2 (fr) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0467835A2 (fr) * 1990-07-17 1992-01-22 HILTI Aktiengesellschaft Outil de scellement actionné par l'énergie de la poudre
DE4313504A1 (de) 1993-04-24 1994-10-27 Hilti Ag Pulverkraftbetriebenes Setzgerät
JPH0825246A (ja) * 1994-07-18 1996-01-30 Kanematsu Nnk Corp 空気圧式固着具打込機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 096, no. 005 31 May 1996 (1996-05-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0805002A3 (fr) * 1996-05-03 1998-01-14 Beto-Tornado GmbH Appareil de scellement de chevilles actionné par la poudre
US6123242A (en) * 1996-05-03 2000-09-26 Berner Gmbh Explosive powder charge operated bolt-setting tool

Also Published As

Publication number Publication date
CN1061584C (zh) 2001-02-07
DE59605124D1 (de) 2000-06-08
KR970033613A (ko) 1997-07-22
AU704410B2 (en) 1999-04-22
AU7544796A (en) 1997-06-26
EP0780195B1 (fr) 2000-05-03
JPH09183080A (ja) 1997-07-15
TW324678B (en) 1998-01-11
US5767434A (en) 1998-06-16
DE19547859A1 (de) 1997-06-26
KR100404357B1 (ko) 2004-03-09
CN1159379A (zh) 1997-09-17

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