EP0805003B1 - Appareil de scellement de chevilles actionné par la poudre - Google Patents

Appareil de scellement de chevilles actionné par la poudre Download PDF

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Publication number
EP0805003B1
EP0805003B1 EP97107296A EP97107296A EP0805003B1 EP 0805003 B1 EP0805003 B1 EP 0805003B1 EP 97107296 A EP97107296 A EP 97107296A EP 97107296 A EP97107296 A EP 97107296A EP 0805003 B1 EP0805003 B1 EP 0805003B1
Authority
EP
European Patent Office
Prior art keywords
barrel
piston
piston head
bolt
section
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
EP97107296A
Other languages
German (de)
English (en)
Other versions
EP0805003A3 (fr
EP0805003A2 (fr
Inventor
Olaf Dr.-Ing. Kersten
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.)
Berner GmbH
Original Assignee
Berner GmbH
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 Berner GmbH filed Critical Berner GmbH
Publication of EP0805003A2 publication Critical patent/EP0805003A2/fr
Publication of EP0805003A3 publication Critical patent/EP0805003A3/fr
Application granted granted Critical
Publication of EP0805003B1 publication Critical patent/EP0805003B1/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 bolt setting device according to the preamble of claim 1.
  • From DE-B-1 177 087 is also a powder-operated bolt-setting tool with a guided in a barrel guide, with a Versechluß Swiss known to bring actionable barrel, the barrel guide bore a multi-part piston, the mouth-side part one has piston skirt and a piston head, receives and on the side facing away from the mouth has a cartridge bearing. Also heard to the piston a so-called consisting of a sleeve and a shaft Hammer, which serves the recoil that occurs when the bolts are inserted to reduce so much that the device does not move from the wall into the the bolt penetrates, lifts off.
  • a so-called consisting of a sleeve and a shaft Hammer which serves the recoil that occurs when the bolts are inserted to reduce so much that the device does not move from the wall into the the bolt penetrates, lifts off.
  • the object of the invention is a powder-operated bolt-setting tool according to the preamble of claim 1 to create that as Repeatlessly working device is structurally simplified.
  • the combustion gases pass through the piston head throttled from the back to the front where they via outlet openings in an annular space between the piston skirt and Get the guide bore for the piston and build up a gas cushion there.
  • These outlet openings are surrounded by an annular spring, the then when the pressure in the annulus at the front of the piston becomes larger than the one on the back that closes the outlet openings.
  • the formation of the gas cushion is supported by the in the Air contained in the annulus and compressed by the piston movement. This gas cushion not only intercepts the piston, but also acts like a gas spring because the pressure behind the piston is released by appropriate Vents in the barrel drop rather than the pressure of the gas cushion, so that the latter hereby returned to its starting position becomes.
  • Fig. 1 shows sections of the section on the barrel side of a powder-operated bolt-setting tool in its initial position.
  • FIG 2 and 3 show the detail of the bolt gun the bolt setting process or at the end of the bolt setting process.
  • FIG. 4 shows an enlarged detail “A” from FIG. 2.
  • the powder powered bolt gun shown includes a barrel guide sleeve 1, the mouth side of a sleeve-shaped insert 2 records.
  • the insert 2 takes a slidable therein Bolt guide 3, which is provided with a shoulder 4, which in the starting position of Fig. 1 on an inward flange portion 5 of a screwed on the muzzle on the barrel guide sleeve 1 Threaded piece 6 rests.
  • a coil spring 9 is clamped prestresses the bolt guide 3 in the starting position of FIG. 1.
  • the bolt guide 3 has a bore 10 for receiving a to be set bolt, which extends on the side facing away from the mouth is displaceable around the mouth end of a barrel front part 11 record during use 2 as a safety stop for the barrel front 11 is used when the device is operated without loading a bolt should be.
  • a rear barrel part 12 is provided, which with a Extension 13 is in the barrel front part 11 and in which a piston receptacle 14 and a combustion chamber adjacent to a conical tread 15 is formed.
  • a cartridge bearing 16 provided for receiving a cartridge, with the cartridge bearing 16 a narrowing bore opening in the tread 15 17 connects.
  • a cartridge belt guide is located adjacent to the cartridge store 16 having closure piece 18th
  • the rear barrel part 12 is via one or more tie rods 19th connected to the bolt guide 3 such that the distance between the two within predetermined limits determined by an axial groove 20 be in which the mouth end of the pull rod 19 slidably is, may vary.
  • the pull rod 19 advantageously has hook-shaped ends with which they into the axial groove 20 or a corresponding Recess is mounted on the barrel rear part 12.
  • a piston 21 is also provided, which has a piston head 22 and has a piston shaft 23.
  • the piston skirt 23 is up to the mouth side the bore 10 of the pin guide 3 is displaceable (Fig. 3).
  • the Piston head 22 has a section 24 which is in the starting position is received by the piston receptacle 14 of the rear barrel part 12, and a section 25 with an enlarged diameter by the barrel guide bore 26 of the barrel front part 11 is guided.
  • the piston 21 has a transition piece a conical mouth-side end 27, which has a conical receptacle 28 is assigned at the mouth end of the barrel front part 11, and one adjoining cylindrical section 29 adjacent to Section 25.
  • a damping disk 30 can be arranged his.
  • the barrel front part 11 is on its with the barrel rear part 12 engaging end with several, distributed over its circumference Vent slots 31 provided in the starting position of FIG. 1st are practically covered by the section 25 of the piston 21.
  • the ventilation slots 31 open into a by a twist 32 at the end of Barrel front part 11 formed and surrounded by the barrel guide sleeve 1 Annulus.
  • the barrel guide sleeve 1 has corresponding ventilation openings 33 provided so that the ventilation slots 31 with the outside are connectable.
  • An annular space 34 around the piston skirt 23 in the barrel guide bore 26 is via an axial bore 35 and a transverse bore 36 connected to the rear of the piston head 22.
  • the mouths of the cross hole 36 in the annular space 34 are located in the cylindrical section 29 in front of the section 25 of the piston head 22 and are of a Ring spring 37 surrounded with play from a corresponding groove in the section 29 is included, cf. in particular Fig. 4.
  • the bolt guide 3 takes a corresponding one for setting the bolts Bolt (not shown).
  • the bolt gun is on a Wall or the like, in which the bolt is to be placed, placed and brought into firing position by pressing against the wall (Fig. 2).
  • the bolt guide 3 against the force of the coil spring 9 in the barrel guide sleeve 1 until the coil spring 9 is compressed, indented so that barrel front part 11 and barrel rear part 12 backwards are moved so that the cartridge bearing 16 receives a cartridge and is brought into the firing position with respect to the closure piece 18.
  • the ventilation slots are 31 and outlet openings 33 already for the exit of combustion gases released so that the piston back with the outside is connected, whereby the pressure behind the piston 21 drops accordingly. This release occurs when section 24 of the piston head 22 emerged from the rear barrel part 12 and the piston 21 accordingly is accelerated.
  • the gas volume compressed in the annular space 34 is due to the sealing of the annular space 34 by the section 25 of the piston 21 opposite the barrel guide bore 26 and through the piston skirt 23 and the adjoining conical section 27 on the outlet side of the barrel front part 11 is built up and intercepts the piston 21.
  • the gas volume compressed in the annular space 34 expands due to of the pressure drop on the back of the piston and thereby leads the piston 21 back to its original position in which the section 24 of the piston head 22 is received by the barrel rear part 12 and the portion 25 of the piston head 22 adjacent to the barrel rear part 12 is located.
  • Leakage losses on the sealing surfaces must of course be so low be held that the gas volume acting as a gas spring in the annular space 34 can apply enough force to the piston 21 in its starting position attributed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Cleaning In General (AREA)
  • Powder Metallurgy (AREA)
  • Fertilizing (AREA)
  • Catching Or Destruction (AREA)

Claims (10)

  1. Appareil de mise en place de boulons fonctionnant sous l'action d'une poudre, doté d'un canon (11, 12) guidé dans une douille de guidage (1), susceptible de coopérer avec une culasse (18), canon dont l'alésage de guidage (26) reçoit un piston (21) qui présente une tige (23) et une tête (22) et qui est doté d'un logement (16) pour cartouches débouchant sur la face détournée de l'ouverture, caractérisé en ce que la face postérieure de la tête de piston (22) est reliée à travers le piston (21) à sa face antérieure de telle manière qu'une partie des gaz de combustion est amenée vers la face antérieure de la tête de piston (22), et en ce que le canon (11, 12) présente des ouïes de ventilation (31) sur sa face tournée vers le logement (16) pour cartouches, lesquelles sont dégagées par la tête de piston (22) lors de la mise en place des boulons avant que le piston (21) n'atteigne sa position finale du côté de la bouche de sortie, position dans laquelle un coussin de gaz est comprimé entre la tête de piston (22) et le canon (11, 12) et repousse ensuite le piston (21) dans sa position initiale.
  2. Appareil selon la revendication 2, caractérisé en ce que la face postérieure de la tête de piston (22) est reliée à sa face antérieure par l'intermédiaire d'un perçage (35) avec des orifices de sortie ventilées.
  3. Appareil selon la revendication 1, caractérisé en ce que les orifices de sortie sont recouvertes par un ressort-bague reçu avec jeu par une gorge.
  4. Appareil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le canon (11, 12) présente une empreinte conique (28) pour une section conique (27) située à l'extrémité de la tige (23) du piston.
  5. Appareil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le canon est composé d'une partie avant de canon (11) et d'une partie arrière de canon (12), qui sont engagées l'une dans l'autre et axialement mobiles l'une par rapport à l'autre.
  6. Appareil selon la revendication 5, caractérisé en ce que la partie avant (11) et la partie arrière (12) de canon servent à guider chacune une section (24, 25) de la tête de piston (22), les ouïes de ventilation (31) étant disposées dans la partie avant de canon (11) avoisinant la partie arrière de canon (12).
  7. Appareil selon la revendication 6, caractérisé en ce que la section arrière (24) de la tête de piston (22) présente un diamètre inférieur à sa section avant (25).
  8. Appareil selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un moyen de guidage de boulon (3), susceptible d'être traversé par la tige de piston (23), est guidé dans la douille de guidage (1) du canon du côté de la bouche de sortie et comprimé par rapport à celle-ci par une précontrainte de ressort (9), le moyen de guidage de boulon (3) et le canon (11, 12) étant accouplés l'un par rapport à l'autre de telle façon qu'ils soient mobiles axialement entre eux sur une distance déterminée et que le moyen de guidage de boulon (3) puisse amener le canon (11, 12) dans sa position initiale hors de coopération avec la culasse (18) en libérant la précontrainte de ressort (9).
  9. Appareil selon la revendication 8, caractérisé en ce que le moyen de guidage (3) de canon est accouplé au canon (11, 12) par au moins une barre de traction (19).
  10. Appareil selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le canon (11, 12) est doté d'un disque d'absorption (30) au niveau de sa face frontale du côté de la bouche de sortie.
EP97107296A 1996-05-03 1997-05-02 Appareil de scellement de chevilles actionné par la poudre Expired - Lifetime EP0805003B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19617672A DE19617672C1 (de) 1996-05-03 1996-05-03 Pulverkraftbetriebenes Bolzensetzgerät
DE19617672 1996-05-03
US09/094,166 US6085958A (en) 1996-05-03 1998-06-09 Explosive powder charge operated bolt-setting tool

Publications (3)

Publication Number Publication Date
EP0805003A2 EP0805003A2 (fr) 1997-11-05
EP0805003A3 EP0805003A3 (fr) 1998-02-04
EP0805003B1 true EP0805003B1 (fr) 2001-07-04

Family

ID=26025334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107296A Expired - Lifetime EP0805003B1 (fr) 1996-05-03 1997-05-02 Appareil de scellement de chevilles actionné par la poudre

Country Status (5)

Country Link
US (1) US6085958A (fr)
EP (1) EP0805003B1 (fr)
AT (1) ATE202738T1 (fr)
DE (2) DE19617672C1 (fr)
ES (1) ES2171240T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705409B2 (en) 2001-03-22 2004-03-16 Chicago Pneumatic Tool Company Reciprocating tool having a piston retaining system
US7051528B2 (en) * 2001-08-17 2006-05-30 Yves Daunas Autonomous gas powered ram
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
DE10341384B4 (de) * 2003-09-05 2016-06-23 Hilti Aktiengesellschaft Setzgerät
DE10358578A1 (de) * 2003-12-15 2005-07-14 Hilti Ag Brennkraftbetriebenes Setzgerät
US7287679B2 (en) * 2004-07-28 2007-10-30 Powers Products Iii, Llc Powder activated setting tool piston retainer arrangement and method
US7201302B2 (en) * 2004-09-01 2007-04-10 Illinois Tool Works Inc. Driver blade with auxiliary combustion chamber for combustion powered fastener-driving tool
US7328751B2 (en) * 2004-10-28 2008-02-12 Fci Americas Technology, Inc. Powder operated tool
DE102005000106B4 (de) * 2005-08-25 2014-02-27 Hilti Aktiengesellschaft Setzgerät
CA2726559C (fr) * 2009-12-30 2014-02-11 Hubbel Incorporated Outil a charge explosive et connecteur
US10926389B2 (en) * 2018-07-31 2021-02-23 Chung-Heng Lee Powder-actuated tool

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US2877750A (en) * 1957-05-29 1959-03-17 Olin Mathieson Hammer and buffer mechanism
FR1289689A (fr) * 1960-04-06 1962-04-06 Appareil pour l'enfoncement de boulons notamment dans des maçonneries
US3044071A (en) * 1960-04-06 1962-07-17 Behrend Herbert Explosive actuated tool
DE1177087B (de) * 1961-04-28 1964-08-27 Tornado Gmbh Geraet zum Eintreiben von Bolzen u. dgl.
DE1503009B2 (de) * 1963-08-26 1970-07-16 Omark Industries Inc., Portland, Oreg. (V.St.A.) Abfangeinrichtung für den Schubkolben eines Brennkraftbolzensetzers
US3255942A (en) * 1964-06-12 1966-06-14 Star Expansion Ind Corp Piston tool with fastener resetting arrangement
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US3815475A (en) * 1972-11-20 1974-06-11 Signode Corp Fastener driving tool with improved piston return
AU460558B2 (en) * 1974-06-11 1975-04-11 Olin Corporation Power-actuated tool
GB2045673B (en) * 1979-04-10 1983-03-23 Prospection & Inventions Powder actuated piston tool with power adjustment
US4358041A (en) * 1980-06-12 1982-11-09 Olin Corporation Powder-actuated tool with power adjustment and angle-fire control
DE3540953A1 (de) * 1985-11-19 1987-05-21 Hilti Ag Pulverkraftbetriebenes bolzensetzgeraet
US4753151A (en) * 1986-06-27 1988-06-28 Lockheed Corporation Self-retracting ballistic actuator system
FR2608493B1 (fr) * 1986-12-23 1994-09-02 Prospection & Inventions Appareil de scellement a tir indirect
DE3819813A1 (de) * 1988-06-10 1989-12-14 Hilti Ag Pulverkraftbetriebenes setzgeraet
DE4022674A1 (de) * 1990-07-17 1992-01-23 Hilti Ag Pulverkraftbetriebenes setzgeraet
DE4313504A1 (de) * 1993-04-24 1994-10-27 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

Also Published As

Publication number Publication date
EP0805003A3 (fr) 1998-02-04
DE59703936D1 (de) 2001-08-09
US6085958A (en) 2000-07-11
DE19617672C1 (de) 1997-10-09
ES2171240T3 (es) 2002-09-01
EP0805003A2 (fr) 1997-11-05
ATE202738T1 (de) 2001-07-15

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