EP0236265A2 - Outil de scellement actionné par la poudre - Google Patents

Outil de scellement actionné par la poudre Download PDF

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Publication number
EP0236265A2
EP0236265A2 EP87810069A EP87810069A EP0236265A2 EP 0236265 A2 EP0236265 A2 EP 0236265A2 EP 87810069 A EP87810069 A EP 87810069A EP 87810069 A EP87810069 A EP 87810069A EP 0236265 A2 EP0236265 A2 EP 0236265A2
Authority
EP
European Patent Office
Prior art keywords
bolt
housing
holding member
driving piston
setting tool
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
EP87810069A
Other languages
German (de)
English (en)
Other versions
EP0236265B1 (fr
EP0236265A3 (en
Inventor
Franz Buechel
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 EP0236265A2 publication Critical patent/EP0236265A2/fr
Publication of EP0236265A3 publication Critical patent/EP0236265A3/de
Application granted granted Critical
Publication of EP0236265B1 publication Critical patent/EP0236265B1/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
    • 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

Definitions

  • the invention relates to a powder-operated setting tool with a housing, a driving piston, which has a radially projecting shoulder relative to a shaft on the setting direction, and a guide bush for the driving piston which can be displaced along the axis of the driving piston relative to the housing, the housing having a substantially perpendicular to the axis of the
  • the driving piston is mounted in a latch that can be moved and the housing has a holding element with a support shoulder that at least partially overlaps the latch in the engaging position.
  • the driving piston In the case of powder-operated setting tools with a driving piston for transferring the powder force to the setting fastener, the driving piston must be moved backwards in the ready-to-fire position in a guide bush after the driving-in process for the next setting process.
  • a latch is provided in the housing of the setting device which protrudes into the axial displacement path of a radially projecting shoulder of the driving piston.
  • the latch is held in the protruding engagement position via a support shoulder of a housing-side holding member.
  • the bolt must be disengageable, which is made possible by removing the holding element designed as a screw.
  • the removal of the holding member requires the use of an auxiliary tool and, moreover, requires complete because of the need unscrewing the holding member requires considerable manipulation; this also applies to the insertion or fixing of the bolt by the holding member.
  • the invention has for its object to enable the removal and insertion of the bolt in a setting tool with the return of a driving piston serving engaging bolt without auxiliary tools and without any significant manipulation effort.
  • the object is achieved in that the holding member is rotatable about the axis of the driving piston and the support shoulder extends in the circumferential direction at least along part of the holding member.
  • the holding member Due to the rotatability of the holding member, for example, in the form of a ring segment, about the axis of the driving piston, the latter can be brought into different rotational positions with the inner contour serving as a supporting shoulder in the overlapping or non-overlapping position of the bolt without an auxiliary tool being required for this. In the respective rotational position, the holding member can be held in position, for example, by friction.
  • the holding member is preferably designed as a ring encompassing the housing with an inner contour which forms the support shoulder and is interrupted by an opening which corresponds at least to the radial projection of the overlapping locking part.
  • a ring-shaped holding member does not require any special guiding means, since the ring encompasses the housing in a concentric manner. It is only necessary to axially fix the ring in relation to the housing.
  • the bar can essentially have, for example, a bar shape sen, one end of the bolt being hooked into the housing, while the opposite end is held down by the support shoulder of the ring and thereby the bolt is fixed in the engagement position.
  • An automatic disengagement of the bolt can be achieved by a spring element acting on the underside of the bolt when the opening is brought into congruence with the bolt.
  • a locking device is advantageously provided to lock the holding member in rotation.
  • the locking device is expediently formed by locking bodies, such as balls, cams or the like, which are immersed in locking recesses by spring force.
  • the setting tool according to FIG. 1 has a housing designated overall by 1.
  • the housing 1 consists of an outer shell 2 with a laterally protruding handle 3 and a tubular chuck body 4 fixed in the outer shell 2.
  • a trigger 5 is displaceably mounted in the handle 3, which acts to trigger the ignition process on an ignition mechanism, not shown, which is known per se .
  • a total of 6 guide bush is slidably mounted, which under pressure conditions conditions of the setting device for attaining the ignition ready position moves to a housing-side locking body 7.
  • This displacement of the guide bush 6 takes place against spring force, in that a tensioning pin 8 seated in the guide bush 6 acts on a compression spring of the ignition mechanism which is supported in the housing 1 at the rear (not shown).
  • An ignition pin 9 of the ignition mechanism is slidably mounted in the closure body 7, an ignition lug 11 being drivable into the position projecting into the front end face of the closure body 7.
  • the bearing bore 12 opens into a central bore 13 in which a drive piston, designated overall by 14, is mounted.
  • the driving piston 14 consists of a front-side shaft 15 and a rear-side head 16. The transition from the smaller cross-section of the shaft 15 to the larger cross-section of the head 16 forms a shoulder 17.
  • the shaft 15 is guided in a mouth part designated overall by 18 and projects into it a mouth bore 19 a.
  • the mouth part 18 is inserted into a bushing 21 so as to be axially displaceable to a limited extent, locking jaws 22 being held in engagement with niche-shaped recesses 24 on the mouth part 18 by an annular spring 23.
  • the bushing 21 is telescopically displaceable in the chuck body 4 and accommodates the front area of the guide bushing 6 on the inside.
  • a cam 25 on the inside of the bushing 21 engages in an axially oriented groove 26 of the guide bushing 6 and can be displaced along the guide bushing up to a stop bolt 27.
  • the guide bush 6 has a longitudinal slot 28 which is continuous to the front.
  • a bar which is in the engaged position and is designated 29 in total projects with a nose 31 through a fen ster 32 in the chuck body 4 and the longitudinal slot 28 into the axial displacement path of the shoulder 17.
  • the bolt 29 is bar-shaped and is supported with the rear end 33 in a recess 34 in the housing 1.
  • the opposite front end 35 of the bolt 29 is radially overlapped by a ring comprising the chuck body 4, generally designated 36, so that the bolt 29 is held in the engagement position shown.
  • a leaf spring 37 acts on the bolt 29 radially outwards.
  • the inner contour of the ring 36 forms a support shoulder 38 which partially surrounds the bolt 29 and is interrupted in the circumferential direction by an opening 39, the clear width of which is slightly larger than the radial projection of the overlapped front end 35 of the bolt 29.
  • a locking device consisting of a locking ball 41, a spring ring 42 and a locking recess 43 in the chuck body 4, reliably ensures that the overlapping rotational position of the support shoulder 38 is maintained.
  • a support ring 45 seated in the chuck body 4 serves to axially support the ring 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Automatic Assembly (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Coating Apparatus (AREA)
EP87810069A 1986-02-22 1987-02-05 Outil de scellement actionné par la poudre Expired - Lifetime EP0236265B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3605832 1986-02-22
DE19863605832 DE3605832A1 (de) 1986-02-22 1986-02-22 Pulverkraftbetriebenes setzgeraet

Publications (3)

Publication Number Publication Date
EP0236265A2 true EP0236265A2 (fr) 1987-09-09
EP0236265A3 EP0236265A3 (en) 1989-06-14
EP0236265B1 EP0236265B1 (fr) 1991-10-02

Family

ID=6294781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810069A Expired - Lifetime EP0236265B1 (fr) 1986-02-22 1987-02-05 Outil de scellement actionné par la poudre

Country Status (5)

Country Link
US (1) US4708061A (fr)
EP (1) EP0236265B1 (fr)
JP (1) JPH0673823B2 (fr)
AU (1) AU582522B2 (fr)
DE (2) DE3605832A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0868979A1 (fr) * 1997-04-02 1998-10-07 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement de tampon à retenue de canon effaçable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
US5249528A (en) * 1992-11-24 1993-10-05 Lee Jervis R Fireworks support kit
US20110173860A1 (en) * 2010-01-15 2011-07-21 Joseph Arendt Gun lock
EP2886260A1 (fr) * 2013-12-19 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163061A (en) * 1966-03-24 1969-09-04 Star Expansion Ind Corp Explosive-Activated Power Tool.
CH553037A (it) * 1972-10-24 1974-08-30 Poly Patent Ag Chiodatrice per effetto di un'azione esplosiva.
FR2375958A1 (fr) * 1976-12-29 1978-07-28 Spit Soc Prospect Inv Techn Perfectionnements aux appareils de scellement a masselotte et cliquet de rappel de la masselotte
FR2545402A1 (fr) * 1983-05-24 1984-11-09 Pneutek Inc
EP0162009A2 (fr) * 1984-05-16 1985-11-21 HILTI Aktiengesellschaft Outil actionné par la poudre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561319A (en) * 1961-05-03 1971-02-09 Victor Comptometer Corp Air-operated projectile firing apparatus
US3952658A (en) * 1968-09-26 1976-04-27 Broyles Howard F Electrically fired superimposed projectile
DE2259861A1 (de) * 1972-12-07 1974-06-12 Dynamit Nobel Ag Gewehrgranate, insbesondere zum verschuss von traenengas- oder leuchtkoerpern
DE3021186A1 (de) * 1980-06-04 1981-12-10 Hilti AG, 9494 Schaan Magazin fuer huelsenlose treibladungen
US4335657A (en) * 1980-08-13 1982-06-22 Ford Aerospace & Communications Corp. Ammunition round with retained piston
US4651454A (en) * 1985-05-06 1987-03-24 Harris Paul C Spear gun having gas sealing means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163061A (en) * 1966-03-24 1969-09-04 Star Expansion Ind Corp Explosive-Activated Power Tool.
CH553037A (it) * 1972-10-24 1974-08-30 Poly Patent Ag Chiodatrice per effetto di un'azione esplosiva.
FR2375958A1 (fr) * 1976-12-29 1978-07-28 Spit Soc Prospect Inv Techn Perfectionnements aux appareils de scellement a masselotte et cliquet de rappel de la masselotte
FR2545402A1 (fr) * 1983-05-24 1984-11-09 Pneutek Inc
EP0162009A2 (fr) * 1984-05-16 1985-11-21 HILTI Aktiengesellschaft Outil actionné par la poudre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0868979A1 (fr) * 1997-04-02 1998-10-07 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement de tampon à retenue de canon effaçable
FR2761631A1 (fr) * 1997-04-02 1998-10-09 Spit Soc Prospect Inv Techn Appareil de scellement de tampon a retenue de canon effacable
US6015078A (en) * 1997-04-02 2000-01-18 Societe De Prospection Et D'inventions Techniques Spit Retractable barrel-holding plug fixing apparatus

Also Published As

Publication number Publication date
AU582522B2 (en) 1989-03-23
JPS62246431A (ja) 1987-10-27
JPH0673823B2 (ja) 1994-09-21
EP0236265B1 (fr) 1991-10-02
EP0236265A3 (en) 1989-06-14
US4708061A (en) 1987-11-24
AU6909187A (en) 1987-08-27
DE3773410D1 (de) 1991-11-07
DE3605832A1 (de) 1987-08-27

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