EP0727285B1 - Setzgerät mit Kolben, angetrieben mit komprimiertem Gas - Google Patents

Setzgerät mit Kolben, angetrieben mit komprimiertem Gas Download PDF

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Publication number
EP0727285B1
EP0727285B1 EP96400055A EP96400055A EP0727285B1 EP 0727285 B1 EP0727285 B1 EP 0727285B1 EP 96400055 A EP96400055 A EP 96400055A EP 96400055 A EP96400055 A EP 96400055A EP 0727285 B1 EP0727285 B1 EP 0727285B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
sleeve
piston
chamber
fast
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
EP96400055A
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English (en)
French (fr)
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EP0727285A1 (de
Inventor
Bruno Toulouse
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.)
Societe de Prospection et dInventions Techniques SPIT SAS
Original Assignee
Societe de Prospection et dInventions Techniques SPIT SAS
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Publication of EP0727285A1 publication Critical patent/EP0727285A1/de
Application granted granted Critical
Publication of EP0727285B1 publication Critical patent/EP0727285B1/de
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

Definitions

  • the present invention relates to a tampon sealing apparatus by a piston propelled by compressed gas, comprising a buffer guide, a cylinder, in which the piston is mounted, a combustion chamber sleeve mounted sliding to close the chamber when the device is pressed the rear, with a cylinder head bearing ignition means and, at the front, with the piston and cylinder, a gas reserve, means for injecting gas into the chamber and a sensor for supporting and closing the chamber, the cylinder being mounted movable in translation in a housing of the device.
  • Apparatus of this type intended for fixing, for example, wood or strips on steel or concrete, offer the advantage of great autonomy, thanks to the capacity of the gas reserve cartridges with which they are fitted. With a single cartridge, you can fire about a thousand shots. However, these devices have the disadvantage of a relatively limited power because especially the too low calorific value of the gas.
  • the apparatus of the present invention is characterized in that the buffer guide performs the probe function and is integral in translation with the cylinder and it means for retaining the piston in the cylinder are provided.
  • the applicant has therefore transformed the apparatus of US-A-4,403,722 into a more powerful apparatus, whose volume of the combustion chamber, after closing, can be reduced.
  • the cylinder may be integral with an anterior skirt slidingly mounted on the rear housing.
  • the housing extends axially along the entire sleeve and the entire cylinder.
  • the action of the drive means of the sleeve towards the rear are exerted against the action of cylinder return means towards the front from the camera body.
  • the means for driving the sleeve towards the rear include at least one lever pivotally mounted on the cylinder against the action of a spring secured, by its ends, to the lever and the housing the device.
  • the cylinder is slidably mounted in the sleeve which has a groove open towards the front, in which a lug extends integral with the cylinder, intended not to come into abutment against the rear bottom of the groove only after closing the chamber.
  • the cylinder is slidably mounted in the sleeve forwards under the action of the return means to open the chamber at the front before that it does not open at the rear by releasing the sleeve from the cylinder head.
  • a fan put in sleeve by abutment of the sleeve against the cylinder head, when the device is pressed, and therefore always in step at the front opening of the room, can suck in fresh air.
  • the bore internal of the piston receiving cylinder can be widened backwards and form a ramp and the piston have a peripheral annular groove of retention in which is arranged a retention segment arranged for cooperate with the ramp and hold the piston when the cylinder recedes after chamber closed.
  • the piston comprises, in front of the retention groove, a peripheral annular sealing groove in which a sealing segment arranged to cooperate with the wall of the internal bore of the cylinder.
  • the device of the type mentioned above can therefore also, in the context of the present invention, be improved and have a combustion chamber to reducible volume thanks to the fact that, the probe being integral in translation with the muff, means are provided for retaining the piston in the cylinder, and the feeler function, during the resting, is ensured successively by the sensor secured to the sleeve and then by the buffer guide.
  • the probe secured to the sleeve includes means arranged so as not to hinder the feeler function of the buffer guide.
  • the device comprises, essentially, in a housing 1, a cylinder head 2, a cylinder 3, a sleeve 4, a buffer guide 5, partly projecting out of the housing, and a piston 6 of buffer propulsion, all these elements, axis 7.
  • the piston 6 is slidably mounted in cylinder 3 which is slidably mounted in the sleeve 4 which is itself slidably mounted in the housing 1.
  • the relative sliding of the cylinder 3 and of the sleeve 4 is however limited, as we will see it later.
  • the buffer guide 5 is screwed onto the cylinder 3.
  • the sleeve 4 has at the rear a neck 8 which can abut against a corresponding zone 9 of the cylinder head, to close, at the rear, a combustion 10.
  • the sleeve 4 also comprises, substantially in part median, an internal annular surface 11 intended to receive a seal 12 carried in an annular groove at the rear of the cylinder 3, to close, at the front, the combustion chamber 10.
  • a spark plug 13 and a mixing fan 14 are carried by the cylinder head 2.
  • An injection pipe 17 is formed through the cylinder head 2, opening into the combustion chamber 10, for the arrival of the propellant gas from a cartridge and a metering device, not shown.
  • the cylinder head 2 carries a switch 18 intended to be actuated by the part rear of the sleeve 4, adjacent to its neck 8, when this neck abuts against the cylinder head chamber closing zone 9.
  • a cylinder return cup 19, open towards the rear, is here screwed, by its bottom 20, to the housing 1. It is extended, towards the rear, by two rods 21 diametrically opposite and parallel to the axis 7, at the free end of which is fixed one end of a return spring 22.
  • the other end of the springs 22 is fixed to a lever 23 pivotally mounted on a lug 24 driven substantially radially in the cylinder 3.
  • the end of each lever 23, opposite to that to which a spring 22 is fixed, carries a free support roller 25.
  • the sleeve 4 has two large lateral notches 26 around the levers 23, with a rear bottom 27, in a transverse plane, against which a roller 25 is in support.
  • the sleeve 4 also comprises, formed from its front edge, a groove 28, parallel to axis 7, therefore open towards the front and in which is introduced a pin 29 screwed into the cylinder 3 and intended to come into abutment against the bottom of the groove when resting, to limit sliding towards the rear of the cylinder 3 after the sleeve 4 has come into abutment against the cylinder head 2.
  • the sleeve 4 also includes a closed lumen 30, parallel to the axis 7, in which is introduced another screw 31 screwed into the cylinder 3 and intended to cooperate with the anterior background of the light at the opening of the device, at the support outlet, for driving the sleeve 4 by the cylinder 3.
  • the rear of the cylinder 3 has an annular recess in which are housed a piston retention ring 32 and a piston stop ring 33.
  • the first aims to temporarily prevent relative sliding forward piston in the cylinder and the second, to prevent the piston from coming out of the rear cylinder.
  • the ring 32 has a posterior internal portion of enlarged diameter 45 which connects to the anterior portion, substantially the same diameter as the piston head 35, by a frustoconical ramp surface 34.
  • the piston 6 has an enlarged posterior head 35 in which are formed two peripheral annular grooves 36,37, the first, anterior, receiving a sealing segment 38 and, the second, posterior, a retention segment 39. In the resting state, the retention segment 39 projects out of its throat.
  • the buffer guide 5 When the apparatus is pressed against the material 16 intended to receive a buffer 15, the buffer guide 5, as a probe, drives backwards, in the housing 1, the cylinder 3 and, via the levers 23 and notches 26, the sleeve 4 until the latter comes to bear, by its neck 8, against zone 9 of cylinder head 2 and closes the rear of the combustion chamber 10 ( Figure 2). During this recoil, the gas cartridge released a dose of gas in the combustion chamber 10.
  • the shot takes place when the candle 13 ignites.
  • a spark causes the explosion which creates a pressure greater than the strength of the retention segment 39.
  • the latter retracts into its groove 37 by sliding on the ramp 34 and the piston 35 thus escapes the retention ring 32.
  • the segment 39 behaves like a classic segment.
  • the piston rod 6 strikes the pad 15 which is fixed in the material 16. The piston continues its stroke until its head 35 comes against the shock absorber 42.
  • the combustion chamber 10 Immediately after the start of the drive of the sleeve 4 by the cylinder 3, the combustion chamber 10 also opens at the rear, by releasing the neck 8 of zone 9 of cylinder head 2, and fan 14 draws fresh air therein through lights made in the cylinder head.
  • pin 29 makes it possible to adjust the compression ratio and that if this rate does not have to be changed, other means may be provided simpler to limit the sliding of the cylinder backwards.
  • the relative dimensions of the piston head 35, of the retention ring 32 and of its ramp 34 are adapted to the desired retention force.
  • Ring 32 should be considered a wearing part; the cylinder 3 and the rings 32, 33 might be just one piece.
  • the apparatus of the invention is not fundamentally different from that in Figures 1-7. It stands out basically by the fact that it's a little bit closer to the starting device from document US-A-4 403 722, the probe remaining integral with the sleeve.
  • the apparatus of these last three figures comprises a buffer guide 50, a cylinder 51, in which is mounted a piston with retention means in the cylinder, a combustion chamber sleeve 52, a cylinder head 54, a gas reserve, means for injecting the gas into the chamber and a probe 55.
  • the probe 55 is integral in translation with the sleeve 52.
  • the sleeve 52 is slidably mounted in the housing 56, against means of reminder 57.
  • the cylinder 51 is mounted movable in translation relative to the sleeve 52, against return means 58.
  • the probe 55 When the device is pressed down, the probe 55 begins by pushing back the sleeve 52 towards the rear to close the chamber 53 at the rear with the cylinder head 54.
  • the buffer guide 50 comes into contact with the support material 61 against which the device is supported, the buffer guide 50 ensures and a feeler function to drive the cylinder 51 and the piston 59 towards the rear and finish closing the chamber 53 at the front, with the piston 59 and the cylinder 51 ( Figure 8B).
  • the buffer guide 50 continues to drive the cylinder 51 and the piston 59 backwards in the sleeve 52, to reduce the volume of chamber 53 (FIG. 8C).
  • the buffer guide 50 also begins to perform a function of probe, it is not necessary that the probe 55 itself involves this function. This is why the probe 55 includes means intended for this. In in this case, it has a compressible intermediate spring 60. But it could also present a telescopic part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Pens And Brushes (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Sealing Devices (AREA)

Claims (14)

  1. Gerät zum Dübelsetzen (15) mittels eines Kolbens (6, 35), der von einem komprimierten Gas angetrieben ist, mit einer Dübelführung (5), einem Zylinder (3), in dem der Koben (6) angeordnet ist, einer Hülse (4) einer Verbrennungskammer (10), die verschieblich angeordnet ist, um während eines Aufsetzens des Gerätes die Kammer (10) zu schließen, hinter mit einem Verschluß (2), der Zündmittel (13) trägt, und vom mit dem Kolben (35) und dem Zylinder (3), einem Gasvorrat, Mitteln (17) zum Einspritzen des Gases in die Kammer und einem Fühler (5) zum Aufsetzen und Schließen der Kammer (10), wobei der Zylinder (3) längsverschieblich in einem Gehäuse (1) des Gerätes angeordnet ist, dadurch gekennzeichnet, dass die Dübelführung (5) die Funktion des Tasters versieht und mit dem Zylinder (3) längsverschieblich zusammengehalten ist und Mittel (32, 37, 39) zum Zurückhalten des Kolbens (35) in dem Zylinder (3) vorhanden sind.
  2. Gerät gemäß Anspruch 1, in dem der Zylinder mit einer vorderen Schürze zusammengehalten ist, die verschieblich auf dem hinteren Gehäuse angeordnet ist.
  3. Gerät gemäß Anspruch 1, in dem das Gehäuse (1) sich axial entlang der gesamten Hülse (4) und des gesamten Zylinders (3) erstreckt.
  4. Gerät gemäß einem der Ansprüche 1 bis 3, in dem Mittel (23, 26) vorhanden sind, die eingerichtet sind, die Hülse (4) unter der Wirkung der Längsverschiebung beim Abstützen des Zylinders (3) nach hinten mitzunehmen.
  5. Gerät gemaß Anspruch 4, in dem die Wirkung von Mitteln (23) zur Mitnahme der Hülse (4) nach hinten gegen die Wirkung von Mitteln (22) zum Zurückholen des Zylinders zum Vorderteil des Gehäuses (1) des Gerätes ausgeübt wird.
  6. Gerät gemaß Anspruch 5, in dem die Mittel zum Mitnehmen der Hülse nach hinten zumindest einen Hebel (23) aufweisen, der schwenkbar gegen die Wirkung einer Feder, die an ihren Enden mit dem Hebel (23) und mit dem Gehäuse (1) des Gerätes verbunden ist, auf dem Zylinder (3) gelagert ist.
  7. Gerät gemaß einem der Ansprüche 3 bis 6, in dem der Zylinder (3) verschieblich in der Hülse (4) angeordnet ist, die eine Nute (28) aufweist, die nach vorn geöffnet ist, in der sich ein Stift (29) erstreckt, der mit dem Zylinder (3) zusammenhält, der dazu bestimmt ist, erst nach dem Schließen der Kammer (10) in Anlage gegen den hinteren Grund (41) der Nute (28) zu kommen.
  8. Gerät gemäß einem der Ansprüche 5 bis 7, in dem der Zylinder (3) unter der Wirkung von Rückholmitteln (22) verschieblich nach vom in der Hülse (4) angeordnet ist, um die Kammer (10) nach vom zu öffnen, bevor sie sich durch Lösen der Hülse (4) vom Verschluß (2) nach hinten öffnet.
  9. Gerät gemäß Anspruch 8, in dem die Verbrennungskammer (10) einen Ventilator (14) aufweist.
  10. Gerät gemäß einem der Ansprüche 1 bis 9, in dem die Mittel zum Zurückhalten des Kolbens (35) in dem Zylinder (3) einen Zurückhaltering (39) aufweisen, der in einer umfänglichen Nute zum Zurückhalten (37) des Kolbens (35) angeordnet und eingerichtet ist, mit einer Rampe (34) zusammenzuwirken, die zwischen zwei vorderen (40) und vergrößerten Durchmessers hinteren (45) Abschnitten einer inneren Bohrung zur Aufnahme des Kolbens (35) in dem Zylinder (3) angeordnet ist.
  11. Gerät gemäß Anspruch 10, in dem der Kolben (35) vor der Nut zum Zurückhalten (37) eine ringförmige umfängliche Nute zur Abdichtung (36) aufweist, in der ein Dichtungsring (38) angeordnet ist, der dazu eingerichtet ist, mit der Wand (40) der inneren Bohrung des Zylinders (3) zusammenzuwirken.
  12. Gerät gemäß einem der Ansprüche 10 und 11, in dem die Rampe zum Zurückhalten (34) auf einem Ring zum Zurückhalten (32) angeordnet ist.
  13. Gerät zum Dübelsetzen mittels eines Kolbens (59), der von komprimiertem Gas angetrieben ist, mit einer Dübelführung (50), einem Zylinder (51), in dem der Kolben (59) angeordnet ist, einer Hülse (52) einer Verbrennungskammer (53), die verschieblich ist, um während eines Aufsetzens des Gerätes die Kammer (53) zu schließen, hinten mit einem Verschluß (54), der Zündmittel trägt, und vom mit dem Kolben (59) und dem Zylinder (51), einem Gasvorrat, Mitteln zum Einspritzen des Gases in die Kammer und einem Fühler (55) zum Aufsetzen und Schließen der Kammer, der längsverschieblich mit der Hülse (52) zusammengehalten ist, wobei der Zylinder (51) längsverschieblich in einem Gehäuse (56) angebracht ist, dadurch gekennzeichnet, dass Mittel zum Zurückhalten des Kolbens in dem Zylinder vorgesehen sind und die Funktion des Fühlers während des Abstützens nacheinander durch den mit der Hülse (52) zusammengehaltenen Fühler (55) und dann durch die Dübelführung (50) sichergestellt ist.
  14. Gerät gemäß Anspruch 13, in dem der mit der Hülse (52) zusammengehaltene Fühler (55) Mittel (60) aufweist, die eingerichtet sind, nicht die Fühlerfunktion der Dübelführung zu hindern.
EP96400055A 1995-02-15 1996-01-10 Setzgerät mit Kolben, angetrieben mit komprimiertem Gas Expired - Lifetime EP0727285B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9501712A FR2730443B1 (fr) 1995-02-15 1995-02-15 Appareil de scellement a piston propulse par gaz comprime
FR9501712 1995-02-15

Publications (2)

Publication Number Publication Date
EP0727285A1 EP0727285A1 (de) 1996-08-21
EP0727285B1 true EP0727285B1 (de) 1999-10-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400055A Expired - Lifetime EP0727285B1 (de) 1995-02-15 1996-01-10 Setzgerät mit Kolben, angetrieben mit komprimiertem Gas

Country Status (7)

Country Link
US (1) US5687898A (de)
EP (1) EP0727285B1 (de)
AT (1) ATE185731T1 (de)
DE (1) DE69604707T2 (de)
ES (1) ES2140036T3 (de)
FR (1) FR2730443B1 (de)
NO (1) NO308888B1 (de)

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US5722578A (en) * 1995-09-29 1998-03-03 Illinois Tool Works Inc. High velocity, combustion-powered, fastener-driving tool
US5860580A (en) * 1996-05-03 1999-01-19 Illinois Tool Works Inc. Piston retention device for combustion-powered tools
US6520397B1 (en) * 1997-12-22 2003-02-18 Illinois Tool Works Inc. Combustion powered tool with improved combustion chamber fan motor suspension
US6158643A (en) 1997-12-31 2000-12-12 Porter-Cable Corporation Internal combustion fastener driving tool piston and piston ring
FR2774017B1 (fr) * 1998-01-27 2000-03-17 Spit Soc Prospect Inv Techn Appareil de fixation a piston propulse par gaz comprime
EP0987086A3 (de) * 1998-09-18 2000-12-20 Ramset Fasteners (Aust.) Pty. Ltd. Kraftgetriebene Werkzeuge mit Magazinzuführung
US6619527B1 (en) 2000-10-10 2003-09-16 Illinois Tool Works Inc. Combustion powered tool suspension for iron core fan motor
JP3969195B2 (ja) * 2002-06-03 2007-09-05 日立工機株式会社 ガス釘打機
US6779493B2 (en) * 2002-06-13 2004-08-24 Illinois Tool Works Inc. Combustion mechanism for generating a flame jet
US7040520B2 (en) * 2002-09-12 2006-05-09 Illinois Tool Works Inc. Fan motor suspension mount for a combustion-powered tool
FR2858261B1 (fr) * 2003-07-29 2005-09-09 Prospection & Inventions Appareil a fonctionnement a gaz d'entrainement d'un element par piston
JP4144472B2 (ja) * 2003-08-11 2008-09-03 日立工機株式会社 燃焼式動力工具
JP4353110B2 (ja) * 2004-04-19 2009-10-28 日立工機株式会社 燃焼式釘打機
FR2870770B1 (fr) * 2004-05-27 2006-08-11 Prospection Et D Inv S Techniq Appareil de fixation a gaz a carter de moteur thermique monte flottant a l'avant
US8745627B2 (en) * 2005-06-27 2014-06-03 Qualcomm Incorporated System and method of controlling power in a multi-threaded processor
JP2007222989A (ja) * 2006-02-23 2007-09-06 Max Co Ltd ガスネイラにおける打撃ピストン保持構造
JP5055793B2 (ja) * 2006-03-10 2012-10-24 マックス株式会社 ガス燃焼式打込み工具
JP5110251B2 (ja) * 2006-08-25 2012-12-26 マックス株式会社 ガス燃焼式打込み工具
TWI317679B (en) * 2006-10-24 2009-12-01 De Poan Pneumatic Corp Air actuated nail driver
JP4650431B2 (ja) * 2007-01-19 2011-03-16 日立工機株式会社 燃焼式打込工具
JP5064958B2 (ja) * 2007-10-04 2012-10-31 株式会社マキタ 打ち込み工具
EP3034238A1 (de) * 2014-12-19 2016-06-22 HILTI Aktiengesellschaft Eintreibgerät mit verstellbarer Brennkammer
US10173310B2 (en) 2015-02-06 2019-01-08 Milwaukee Electric Tool Corporation Gas spring-powered fastener driver
CN105500290A (zh) * 2016-02-14 2016-04-20 重庆双伟机械有限公司 一种气体燃烧式冲击工具

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DE4032204C2 (de) * 1990-10-11 1999-10-21 Hilti Ag Setzgerät für Befestigungselemente
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Also Published As

Publication number Publication date
NO960580D0 (no) 1996-02-14
DE69604707T2 (de) 2000-04-27
FR2730443A1 (fr) 1996-08-14
ATE185731T1 (de) 1999-11-15
NO308888B1 (no) 2000-11-13
ES2140036T3 (es) 2000-02-16
EP0727285A1 (de) 1996-08-21
US5687898A (en) 1997-11-18
DE69604707D1 (de) 1999-11-25
NO960580L (no) 1996-08-16
FR2730443B1 (fr) 1997-04-11

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