EP0798084A1 - Eintreibgerät für Befestigungsmittel mit einem automatisch zur Initialposition zurückkehrenden Kolben - Google Patents

Eintreibgerät für Befestigungsmittel mit einem automatisch zur Initialposition zurückkehrenden Kolben Download PDF

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Publication number
EP0798084A1
EP0798084A1 EP97400523A EP97400523A EP0798084A1 EP 0798084 A1 EP0798084 A1 EP 0798084A1 EP 97400523 A EP97400523 A EP 97400523A EP 97400523 A EP97400523 A EP 97400523A EP 0798084 A1 EP0798084 A1 EP 0798084A1
Authority
EP
European Patent Office
Prior art keywords
counterweight
space
barrel
passage
head
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
EP97400523A
Other languages
English (en)
French (fr)
Other versions
EP0798084B1 (de
Inventor
Roland Almeras
Patrick Herelier
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
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 Societe de Prospection et dInventions Techniques SPIT SAS filed Critical Societe de Prospection et dInventions Techniques SPIT SAS
Publication of EP0798084A1 publication Critical patent/EP0798084A1/de
Application granted granted Critical
Publication of EP0798084B1 publication Critical patent/EP0798084B1/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
    • 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
    • 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
    • B25C1/143—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil 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

  • the present invention relates to a tampon driving apparatus for fixing a part to a support material, by means of a counterweight arranged to be propelled forward in a barrel under the action of combustion gases d '' a cartridge disposed in a combustion chamber of the barrel and comprising, along the counterweight, a return chamber with an anterior space closed by a front surface of the counterweight and a posterior space arranged for, after a first movement towards the before the counterweight, communicate with the combustion chamber, then, and after placing the two spaces in communication, be isolated from the front space and the counterweight is returned back into the barrel.
  • the invention relates to an apparatus of the type defined above, characterized in that the two anterior and posterior spaces communicate with each other during the movement of the counterweight and the posterior space is isolated from the anterior space after a second movement towards the front of the counterweight, after which, the posterior space communicating with the outside of the appliance, the expansion of the combustion gases trapped in the anterior space recalls the counterweight towards the rear in the position of shoot.
  • the internal communication groove of the barrel extends axially over a length equal to the difference between the second displacement and the intermediate displacement of the counterweight increased by the axial thickness of the counterweight head.
  • the combustion chamber of the barrel extends into a nozzle projecting forward and arranged to be introduced into the rear skirt of the counterweight head.
  • the counterweight has a head extended by an appendage projecting rearward and arranged to be introduced into the combustion chamber.
  • the device of FIGS. 1 to 3 comprises, integral with a handle 1, a firing device 2, a percussion device 3, means, not shown, for receiving and driving here a disc 4 charger of cartridges 11 and an assembly 5 for driving a fixing pad 6 in a support material 7.
  • the drive assembly 5 comprises, in a cylindrical tube 8, mounted in the handle, a barrel 9 with an axis 20, in the barrel 9, a counterweight 10, screwed into the front of the barrel, a guide support 12 and, in the support 12, a buffer guide 13.
  • a member 29 for damping the flyweight At the front of the barrel and at the rear of the guide support 12 is arranged a member 29 for damping the flyweight.
  • a plurality of axial grooves 21 are formed at the inner periphery of the barrel 9, at a location and over a length which will appear later.
  • the rear skirt 19 of the counterweight has an annular external lateral recess 22, so that the external diameter of the skirt is smaller than the diameter of the head 17 and this skirt is pierced, in its rear part, with a passage 23 There could moreover be several passages.
  • the barrel also comprises a longitudinal annular external lateral recess 24 opening, on the one hand, into the bore of the barrel by a passage 25 drilled in the rear part of the barrel 9, here in the axial length of the nozzle 16, and, d on the other hand, outside the device when it is in the open position via a passage 26, drilled in the cylindrical tube 8 barrel holder, and a longitudinal annular external lateral recess 27 formed on the tube 8.
  • the barrel and the counterweight define a counterweight return chamber along the counterweight, in this case around it, with an anterior space and a posterior space.
  • the front space 30 is formed between the counterweight rod 18 and the part of the barrel at the front of the grooves 21; it is closed by the front front surface 28 of the counterweight head 17.
  • the posterior space is formed essentially by the annular recess 22 around the counterweight skirt 19.
  • the rear space 22 of the return chamber can communicate with the combustion chamber 15 through the passage 23 and the two front 30 and rear 22 spaces can communicate with each other by the barrel grooves 21.
  • the barrel 9 can slide in the barrel-carrying tube 8 between a front position, in abutment against a washer 31 at the bottom of a ring 32 screwed onto the tube 8, and a rear position, in abutment against a front abutment 33 of the housing charger 4.
  • the counterweight 10 by a tapered front portion 34 of its rod 18, can slide in the bore of the buffer guide 13.
  • the device After having introduced a fixing pad 6 into the pad guide 13 and placed cartridges 11 on the magazine 4, the device is pressed against the support 7.
  • the pad guide 13 slides backwards, compresses the spring 14, abuts against the damping member 29 and thus drives the barrel 9 backwards which activates the firing system 2 and positions a cartridge 11 in the combustion chamber 15.
  • this intermediate distance is only very slightly greater than the first distance I. It could moreover be conceived that these two distances are equal.
  • the combustion gases then escape to the anterior space 30, until the flyweight has traveled, since the start of its propulsion, a second distance and the front front surface 28 arrives at the right of the front ends. grooves 21 and that the counterweight therefore insulates, like a valve, the rear space 22 from the front space 30.
  • grooves 21 extend axially over a length equal to the difference between the second displacement and the intermediate displacement of the counterweight increased by the axial thickness of the counterweight head 17.
  • the counterweight continues its stroke forward, compressing the gases trapped in the anterior space 30, until, first, the rear counterweight skirt 19 clears the passage 25 pierced in the barrel and authorizes the evacuation of gases from the posterior space 22 to the atmosphere then, by the clean energy of the counterweight, that the buffer 6 is fixed in the support 7 (FIG. 3).
  • the counterweight Under the pressure of the gases in the anterior space 30, the counterweight is then returned towards the rear in the firing position, the return being facilitated by the communication of the posterior space 22 with the exterior of the device.
  • the spring 14 recalls the buffer guide 13 and the barrel 9 forwards and the magazine 4 advances by one step and the buffer guide comes to occupy a position in front of the portion of flyweight rod 18 not tapered.
  • the variant embodiment of the apparatus of FIGS. 4 to 6 differs from the first embodiment of FIGS. 1 to 3 only by its drive assembly 5.
  • the counterweight 50 comprises a head 51 extended, towards the front, by a rod 52 with a tapered front portion 53 and, towards the rear, by an appendage 54 of section narrowed relative to that of the head 51.
  • a cartridge holder 55 of internal section at the front of the cartridge housing 56, substantially equal to that of the flyweight appendage 54. But this cartridge holder and the barrel could also be self-contained.
  • the barrel wall 57 In front of the cartridge holder 55, the barrel wall 57 has an extra thickness in the plane of which the inner section of the barrel is equal to that of the cartridge holder 55 and forming with the front barrel part 58 an annular shoulder 59 of abutment of the flyweight head 51.
  • a passage 52 opening into the bore of the barrel, at the front, by a front opening 60 and, at the rear, through a rear opening 61.
  • the barrel has a longitudinal annular external lateral recess 63 opening out and into the bore of the barrel, through a passage 64 in the barrel, and outside the device, through a passage 65 in the barrel holder 8.
  • the return chamber of the counterweight here also includes an anterior space 66, at the front of the counterweight head 51 and its front surface 68, and a rear space 67 here formed by the communication passage 60 - 62 along the counterweight 50.
  • the axial length of the passage 62, to the dimension of the openings 60, 61 near is here substantially equal to the sum of the axial lengths of the counterweight head 51, of the bore of the cartridge holder 55 and twice the axial length of the barrel allowance 57.
  • the counterweight 50 continues its course forward and, when the counterweight head 51 arrives at the right of the anterior opening 60 of the passage 62, the counterweight having traveled, since the start of the propulsion, a second distance, the head of counterweight 51 closes the anterior opening 60, which isolates the posterior space 67 from the anterior space 66.
  • the counterweight continues its course forwards by compressing the gases trapped in the anterior space 66 until the buffer is fixed. Then, under the pressure of the gases in the anterior space 66, and thanks to the escape of the gases from the posterior space 67 towards the outside, the counterweight is returned towards the rear. Its complete return to the firing position is ensured, still as previously, by the ring 38 and the balls 37.
  • the air mattress formed at the rear of the counterweight after its return towards the rear, under the action of the balls 37 and the ring 38, is compressed in a volume corresponding substantially to that of the internal bore of the nozzle 16.
  • the mattress at the rear of the counterweight is compressed into a volume corresponding substantially to that of the housing cartridge 56, much smaller than that of the inner bore of the nozzle 16 of the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)
  • Manipulator (AREA)
EP97400523A 1996-03-26 1997-03-07 Eintreibgerät für Befestigungsmittel mit einem automatisch zur Initialposition zurückkehrenden Kolben Expired - Lifetime EP0798084B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603722A FR2746690B1 (fr) 1996-03-26 1996-03-26 Appareil d'entrainement de tampon par masselotte a retour automatique en position du tir
FR9603722 1996-03-26

Publications (2)

Publication Number Publication Date
EP0798084A1 true EP0798084A1 (de) 1997-10-01
EP0798084B1 EP0798084B1 (de) 2002-12-11

Family

ID=9490536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400523A Expired - Lifetime EP0798084B1 (de) 1996-03-26 1997-03-07 Eintreibgerät für Befestigungsmittel mit einem automatisch zur Initialposition zurückkehrenden Kolben

Country Status (8)

Country Link
US (1) US5797534A (de)
EP (1) EP0798084B1 (de)
JP (1) JPH106240A (de)
KR (1) KR100418140B1 (de)
AT (1) ATE229408T1 (de)
DE (1) DE69717701T2 (de)
ES (1) ES2188877T3 (de)
FR (1) FR2746690B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2772298A1 (fr) * 1997-12-15 1999-06-18 Hilti Ag Outil de scellement actionne par des gaz a haute pression
EP0972615A3 (de) * 1998-07-13 2000-04-19 HILTI Aktiengesellschaft Pulverkraftbetriebenes Setzgerät
US6123242A (en) * 1996-05-03 2000-09-26 Berner Gmbh Explosive powder charge operated bolt-setting tool

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPM948894A0 (en) * 1994-11-17 1994-12-08 Ramset Fasteners (Aust.) Pty. Limited Power actuated fastening tool
DE19617672C1 (de) * 1996-05-03 1997-10-09 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
DE19800847A1 (de) * 1997-12-04 1999-06-17 Gerd Dr Ing Kellner Gerät zum Setzen eines Befestigungselementes in einen Setzuntergrund und Verwendung des Gerätes
US5911351A (en) * 1998-01-02 1999-06-15 Stanley Fastening Systems, L.P. Pneumatic fastening device having improved nose sealing arrangement
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
AUPP770598A0 (en) * 1998-12-14 1999-01-14 Ramset Fasteners (Aust.) Pty. Limited Power actuated tools
DE10105882C2 (de) * 2001-02-09 2002-12-05 Hilti Ag Kolbenhalterung
DE10105885C1 (de) * 2001-02-09 2002-06-13 Hilti Ag Kolbenhalterung
DE10105879C2 (de) * 2001-02-09 2002-12-12 Hilti Ag Kolbenhalterung
DE10105880C2 (de) * 2001-02-09 2003-04-10 Hilti Ag Kolbenhalterung
AUPR857501A0 (en) * 2001-10-30 2001-11-29 Cetram Pty Limited Fastener driving tools
US7135227B2 (en) 2003-04-25 2006-11-14 Textronics, Inc. Electrically conductive elastic composite yarn, methods for making the same, and articles incorporating the same
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
US7287679B2 (en) * 2004-07-28 2007-10-30 Powers Products Iii, Llc Powder activated setting tool piston retainer arrangement and method
DE102005000106B4 (de) * 2005-08-25 2014-02-27 Hilti Aktiengesellschaft Setzgerät
DE102010036723A1 (de) 2010-07-29 2012-02-02 Fischerwerke Gmbh & Co. Kg Brennkraftbetriebenes Setzgerät

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877750A (en) * 1957-05-29 1959-03-17 Olin Mathieson Hammer and buffer mechanism
US3323705A (en) * 1965-08-20 1967-06-06 Impex Essen Vertrieb Cartridge-operated stud-setting device for studs of different lengths
AU460557B2 (en) * 1974-06-11 1975-04-11 Olin Corporation Powder-actuated tool
US4122987A (en) * 1976-07-19 1978-10-31 Hilti Aktiengesellschaft Damping device for a fastening element setting gun
US4196834A (en) * 1978-12-11 1980-04-08 Olin Corporation Noise reducer for powder actuated fastening tool
EP0042485A1 (de) * 1980-06-12 1981-12-30 Olin Corporation Pulverkraftbetriebenes Werkzeug mit Leistungsregulierung und Überwachung des Wirkungswinkels
EP0223740A2 (de) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Pulverkraftbetriebenes Bolzensetzgerät
EP0274919A1 (de) * 1986-12-23 1988-07-20 Societe De Prospection Et D'inventions Techniques Spit Setzgerät mit Treibkolben
DE4313504A1 (de) * 1993-04-24 1994-10-27 Hilti Ag Pulverkraftbetriebenes Setzgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678808A (en) * 1970-12-09 1972-07-25 Omark Industries Inc Energy dissipating mechanisms
DE69005786T2 (de) * 1989-10-27 1994-04-28 Hitachi Koki Kk Mit Verbrennungsgas betriebenes Eintreibwerkzeug für Befestigungsmittel.
DE4022674A1 (de) * 1990-07-17 1992-01-23 Hilti Ag Pulverkraftbetriebenes setzgeraet
US5191861A (en) * 1991-07-12 1993-03-09 Stanley-Bostitch, Inc. Internal combustion actuated portable tool
US5680980A (en) * 1995-11-27 1997-10-28 Illinois Tool Works Inc. Fuel injection system for combustion-powered tool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877750A (en) * 1957-05-29 1959-03-17 Olin Mathieson Hammer and buffer mechanism
US3323705A (en) * 1965-08-20 1967-06-06 Impex Essen Vertrieb Cartridge-operated stud-setting device for studs of different lengths
AU460557B2 (en) * 1974-06-11 1975-04-11 Olin Corporation Powder-actuated tool
US4122987A (en) * 1976-07-19 1978-10-31 Hilti Aktiengesellschaft Damping device for a fastening element setting gun
US4196834A (en) * 1978-12-11 1980-04-08 Olin Corporation Noise reducer for powder actuated fastening tool
EP0042485A1 (de) * 1980-06-12 1981-12-30 Olin Corporation Pulverkraftbetriebenes Werkzeug mit Leistungsregulierung und Überwachung des Wirkungswinkels
EP0223740A2 (de) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Pulverkraftbetriebenes Bolzensetzgerät
EP0274919A1 (de) * 1986-12-23 1988-07-20 Societe De Prospection Et D'inventions Techniques Spit Setzgerät mit Treibkolben
DE4313504A1 (de) * 1993-04-24 1994-10-27 Hilti Ag Pulverkraftbetriebenes Setzgerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123242A (en) * 1996-05-03 2000-09-26 Berner Gmbh Explosive powder charge operated bolt-setting tool
FR2772298A1 (fr) * 1997-12-15 1999-06-18 Hilti Ag Outil de scellement actionne par des gaz a haute pression
EP0972615A3 (de) * 1998-07-13 2000-04-19 HILTI Aktiengesellschaft Pulverkraftbetriebenes Setzgerät

Also Published As

Publication number Publication date
US5797534A (en) 1998-08-25
ES2188877T3 (es) 2003-07-01
JPH106240A (ja) 1998-01-13
EP0798084B1 (de) 2002-12-11
DE69717701D1 (de) 2003-01-23
KR970064834A (ko) 1997-10-13
DE69717701T2 (de) 2003-09-04
KR100418140B1 (ko) 2004-04-06
FR2746690B1 (fr) 1998-05-29
ATE229408T1 (de) 2002-12-15
FR2746690A1 (fr) 1997-10-03

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