EP0720893B1 - Appareil de scellement de chevilles actionné par de la poudre - Google Patents

Appareil de scellement de chevilles actionné par de la poudre Download PDF

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Publication number
EP0720893B1
EP0720893B1 EP95810773A EP95810773A EP0720893B1 EP 0720893 B1 EP0720893 B1 EP 0720893B1 EP 95810773 A EP95810773 A EP 95810773A EP 95810773 A EP95810773 A EP 95810773A EP 0720893 B1 EP0720893 B1 EP 0720893B1
Authority
EP
European Patent Office
Prior art keywords
piston
section
passage
cylinder
liquid medium
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
EP95810773A
Other languages
German (de)
English (en)
Other versions
EP0720893A1 (fr
Inventor
Rolf Dr. Bereiter
Peter Goepfert
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 EP0720893A1 publication Critical patent/EP0720893A1/fr
Application granted granted Critical
Publication of EP0720893B1 publication Critical patent/EP0720893B1/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
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • 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
    • B25C1/12—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting directly on the bolt
    • B25C1/123—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting directly on the bolt trigger operated
    • 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
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers

Definitions

  • a powder-operated bolt setting device is known, the one Has guide housing for driving piston guide. Between the guide housing and a relatively displaceable handle part, a spring is provided which recoil acting on the operating personnel during the driving-in process of the bolt should absorb and dampen.
  • the damping effect of such a spring solution is only sufficient for small spring rates.
  • a small spring rate requires a large one Spring and increased space requirements, which means with such a damping device equipped device becomes unwieldy.
  • the use of a smaller spring with a larger one Spring rate in turn reduces the damping effect, so that the operating personnel still a high proportion of the undesirable recoil forces.
  • the Return speed in such known Fedem very high, so that also Reset undesirable vibrations affecting the operating personnel occur.
  • a powder-operated setting tool which the features listed in claim 1.
  • a generic powder-operated setting tool is used improved that the hydropneumatic damping device is free of moving Valve parts is, and that for that during the displacement process of the piston displaced liquid medium at least one passage opening is provided, which has a minimum cross section and is designed such that the liquid medium, which occurs when the piston is immersed in the setting direction in the front Cylinder space flows, has an effective flow cross-section that the Minimum cross section corresponds to the passage opening, while when the Pistons the effective flow cross section of the counter to the setting direction in the rear Cylinder space flowing liquid medium smaller in the area of the passage opening is their minimum cross section.
  • the effective one Flow cross section S from the rear 26 into the front cylinder space 25 overflowing liquid medium 21 corresponds to the minimum cross section of the Through openings 24.
  • This minimum cross section and the number of Through openings 24 are selected such that rapid, damped immersion of the piston 23 takes place.
  • FIG. 3 and 4 is the mode of operation of the damping device 17 according to the invention schematically shown with specially designed passage openings 24.
  • the Detail of the damping device 17 in Fig. 3 is the Immersion process of the piston 23 indicated by the arrow E.
  • the immersion process flows the liquid medium 21 out of the rear cylinder space 26 through the passage opening 24 into the front cylinder space 25.
  • the passage opening 24 is from the cylinder wall 18a and the piston surface 23b facing it limited.
  • the liquid medium 21 is indicated by flow lines.
  • the special design of the passage opening 24 it remains essentially one laminar flow and the effective flow cross-section of the liquid medium corresponds to the minimum cross section M of the passage opening 24.
  • Fig. 5 shows a similar embodiment of another embodiment of the Damping device 17.
  • the passage opening 24 is in the bypass Wall of the cylinder 18 provided.
  • the bypass has two mouths that pass through a channel 24c are connected.
  • a front mouth 24a is in the front Cylinder chamber 25 arranged in front of the rest position of the piston 23 and a rear one Mouth 24b is located in the rear cylinder space 26 behind the maximum Immersion position of the piston 23.
  • the displacement of the piston 23 extends between the two mouths 24a and 24b.
  • the different behavior of the Damping device 17 when immersing the piston 23 or when resetting is by the different formation of the mouths achieved.
  • the rear mouth 24b is preferably funnel-shaped and largely free of sharp edges Boundaries.
  • the front mouth 24a has sharp edges where vortices occur that continue through channel 24 c and become one Lead jet contraction of the flowing medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Earth Drilling (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
  • Safety Valves (AREA)
  • Nozzles (AREA)
  • Fertilizing (AREA)
  • Catching Or Destruction (AREA)

Claims (6)

  1. Dispositif de scellement de chevilles actionné par explosif avec dispositif d'amortissement hydropneumatique comportant une partie conformée en boítier de guidage (1) pour un guidage de piston-poussoir (5, 6) et une partie conformée en poignée (15), qui peut coulisser par rapport au boítier de guidage (1), dans le sens de pose, à l'encontre de la force d'un dispositif d'amortissement (17) hydropneumatique, une partie servant à recevoir un cylindre (18) contenant un agent liquide (21) sous pression de gaz et l'autre partie coopérant avec un piston (23) pouvant coulisser dans le cylindre (18), à l'encontre de la résistance à l'écoulement de l'agent liquide (21), lequel piston partage le cylindre (18) en une chambre de cylindre avant (25) et une chambre de cylindre arrière (26), caractérisé en ce que le dispositif d'amortissement (17) hydropneumatique ne comporte pas de partie de soupape mobile, et en ce que pour l'agent liquide (21), soumis à la pression pendant le coulissement du piston (23), il est prévu au moins une ouverture de passage (24), qui présente une section transversale minimale (m) et qui est conçue de manière que l'agent (21), s'écoulant dans la chambre de cylindre avant (25), lors de la pénétration du piston (23) dans le sens de pose, présente une section d'écoulement effective (S), qui correspond à la section minimale (M) de l'ouverture de passage (24), tandis que lors du retour du piston (23), la section d'écoulement effective (S) de l'agent liquide (21), passant dans le sens contraire au sens de pose dans la chambre de cylindre arrière (26), est inférieure à sa section minimale (M), dans la région de l'ouverture de passage (24).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'ouverture de passage (24) présente des bords à arêtes vives dans la région de sa section minimale (M) et est élargie dans le sens de pénétration du piston (23).
  3. Dispositif selon la revendication 2, caractérisé en ce que la section transversale de l'ouverture de passage (24) est élargie sensiblement en continu ou presque, en ce qu'au moins une surface de délimitation (23b) de l'ouverture de passage (24) est courbe ou est chanfreinée en un ou plusieurs gradins.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'une ou plusieurs ouvertures de passage (24) sont prévues dans le piston (23) ou sur le pourtour du piston.
  5. Dispositif selon la revendication 4, caractérisé en ce que l'ouverture de passage (24) est une fente annulaire, de préférence interrompue par des nervures de guidage, entre le piston (23) et la paroi (18a) du cylindre, la surface de piston tournée vers la chambre avant (25) s'étendant sensiblement perpendiculairement à la paroi (18a) du cylindre et présentant le diamètre maximal, et le diamètre du piston (23) diminuant en continu ou presque vers la chambre de cylindre arrière (26).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'une ou plusieurs ouvertures de passage (24) sont prévues en tant que dérivations (24a, 24b, 24c) dans la paroi (18a) du cylindre, un débouché avant (24a) de l'ouverture de passage (24) de section minimale (M) étant disposé dans la chambre de cylindre avant (25) et un débouché arrière (24b) d'une section plus grande que la section minimale se trouvant dans la chambre de cylindre arrière (26) et le piston (23) présentant un parcours de coulissement qui s'étend entre les deux débouchés (24a, 24b).
EP95810773A 1995-01-07 1995-12-07 Appareil de scellement de chevilles actionné par de la poudre Expired - Lifetime EP0720893B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19500320 1995-01-07
DE19500320A DE19500320A1 (de) 1995-01-07 1995-01-07 Pulverkraftbetriebenes Bolzensetzgerät

Publications (2)

Publication Number Publication Date
EP0720893A1 EP0720893A1 (fr) 1996-07-10
EP0720893B1 true EP0720893B1 (fr) 1998-07-29

Family

ID=7751099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810773A Expired - Lifetime EP0720893B1 (fr) 1995-01-07 1995-12-07 Appareil de scellement de chevilles actionné par de la poudre

Country Status (8)

Country Link
US (1) US5653370A (fr)
EP (1) EP0720893B1 (fr)
JP (1) JP3451157B2 (fr)
KR (1) KR100354367B1 (fr)
AT (1) ATE168919T1 (fr)
AU (1) AU699758B2 (fr)
DE (2) DE19500320A1 (fr)
ES (1) ES2119346T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544105A1 (de) * 1995-11-27 1997-05-28 Hilti Ag Bolzensetzgerät mit Stoßdämpfer
DE19831053A1 (de) * 1998-07-13 2000-01-20 Hilti Ag Pulverkraftbetriebenes Setzgerät
US5992723A (en) * 1998-08-04 1999-11-30 Lee; Chung-Heng Shaft-operated nailing tool
DE19903993A1 (de) * 1999-02-02 2000-08-03 Hilti Ag Setzgerät
US6729356B1 (en) 2000-04-27 2004-05-04 Endovascular Technologies, Inc. Endovascular graft for providing a seal with vasculature
US6658288B1 (en) 2000-05-05 2003-12-02 Endovascular Technologies, Inc. Apparatus and method for aiding thrombosis through the application of electric potential
DE10107979B4 (de) * 2001-02-19 2012-12-13 Hilti Aktiengesellschaft Setzgerät
DE10251307B4 (de) * 2002-11-04 2014-04-10 Hilti Aktiengesellschaft Brennkraftbetriebenes Setzgerät
DE10259567A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Brennkraftbetriebenes Setzgerät
DE102005000113B4 (de) * 2005-09-13 2014-03-27 Hilti Aktiengesellschaft Setzgerät
CA493745A (fr) * 2006-10-04 1953-06-16 E. Glassburn William Relais de cale jointe
EP2886258A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
EP2886257A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
EP2886260A1 (fr) * 2013-12-19 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
EP2923800A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre
CN111347375B (zh) * 2020-02-17 2022-11-01 天津大学 一种液氮射钉枪装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR927979A (fr) * 1946-04-26 1947-11-14 Schneider & Cie Récupérateur hydro-pneumatique ou pneumatique à puissance variable
US2731636A (en) 1952-08-20 1956-01-24 Prospection & D Inv S Tech Spi Improvements in explosively actuated fastener driving tools
US2966829A (en) * 1957-05-02 1961-01-03 Tannenbaum Joseph Recoil mechanism
US3646757A (en) * 1969-09-29 1972-03-07 Aerpat Ag Lock bolt placing apparatus
US3985061A (en) * 1975-05-21 1976-10-12 The United States Of America Sleeve bearing for supporting reciprocating members
DE2843727C2 (de) * 1978-10-06 1986-02-06 Gasfeder Verwaltungsgesellschaft mbh, 7336 Uhingen Ausziehbare Haltevorrichtung für ein Werkzeug, insbesondere Montagewerkzeug
US4658913A (en) * 1982-06-03 1987-04-21 Yantsen Ivan A Hydropneumatic percussive tool
US4774873A (en) * 1986-09-15 1988-10-04 The United States Of America As Represented By The Secretary Of The Army Sleeve recuperator
DE3806831A1 (de) 1988-03-03 1989-09-14 Hilti Ag Pulverkraftbetriebenes bolzensetzgeraet
DE4032204C2 (de) * 1990-10-11 1999-10-21 Hilti Ag Setzgerät für Befestigungselemente

Also Published As

Publication number Publication date
EP0720893A1 (fr) 1996-07-10
AU4084396A (en) 1996-07-18
ES2119346T3 (es) 1998-10-01
DE59502980D1 (de) 1998-09-03
US5653370A (en) 1997-08-05
AU699758B2 (en) 1998-12-17
KR100354367B1 (ko) 2002-12-06
ATE168919T1 (de) 1998-08-15
JPH08229844A (ja) 1996-09-10
JP3451157B2 (ja) 2003-09-29
KR960029035A (ko) 1996-08-17
DE19500320A1 (de) 1996-07-11

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