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EP0162009A2 - Outil actionné par la poudre - Google Patents

Outil actionné par la poudre Download PDF

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Publication number
EP0162009A2
EP0162009A2 EP85810169A EP85810169A EP0162009A2 EP 0162009 A2 EP0162009 A2 EP 0162009A2 EP 85810169 A EP85810169 A EP 85810169A EP 85810169 A EP85810169 A EP 85810169A EP 0162009 A2 EP0162009 A2 EP 0162009A2
Authority
EP
European Patent Office
Prior art keywords
barrel
setting tool
blow
tool according
outflow channel
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.)
Withdrawn
Application number
EP85810169A
Other languages
German (de)
English (en)
Other versions
EP0162009A3 (fr
Inventor
Peter Jochum
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 EP0162009A2 publication Critical patent/EP0162009A2/fr
Publication of EP0162009A3 publication Critical patent/EP0162009A3/fr
Withdrawn legal-status Critical Current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-powered setting tool for driving bolts, nails and the like into hard receiving materials, such as steel, concrete and the like, with a housing, a barrel, a sliding piston displaceable in the barrel and a guide bushing over the barrel with a combustion chamber, the barrel opposite the guide bush is rotatably mounted and the barrel in the rear region of the wall has at least one blow-off opening and the guide bush has an outflow channel open to the atmosphere.
  • the barrel which is screwed to a guide bush, is axially offset by turning relative to the guide bush, whereby a circumferential gap is created between the rear end region of the barrel and the inside of the guide bush comprising the latter, through which part of the propellant gases generated in the combustion chamber are transferred an outflow channel enters the atmosphere.
  • the output can be steplessly controlled, ie the greatest output is achieved when the gap is closed, and the output decreases when the gap is increasingly open.
  • a disadvantage of this construction is that propellant residues close the gap opened to reduce the power relatively quickly due to its small clear width and on the one hand change the set performance mark and on the other hand cause the barrel to lock against the guide bush.
  • the invention has for its object to provide a powder-powered setting tool with a power regulation, for example, insensitive to propellant residues, which is characterized by continued functionality and easy handling.
  • the object is achieved in that the blow-off openings in the barrel, when the driving piston is in the ignition-ready position, are connected to the combustion chamber stand and can be brought into cover with the outflow channel of the guide bush.
  • a setting tool of this type enables the maximum output to be set by not placing any of the blow-off openings in alignment with the outflow channel, or on the other hand to set a reduced power level by one or more blow-off openings being brought into cover with the outflow channel by rotating the barrel.
  • a blow-off opening is expediently provided for the reduced power level, which is brought into coincidence with the outflow channel. This results in the largest possible clear cross section for the blow-off opening, which favors the free passage of the propellant residue, as described above.
  • the drive piston preferably has a sealing shoulder, to which an axial stop, which opens the blow-off openings when the drive piston is in the ignition-ready position, connects to the rear toward the combustion chamber.
  • an axial stop which opens the blow-off openings when the drive piston is in the ignition-ready position
  • the propellant gases can reach the blow-off openings from the combustion chamber along the axial stop and partially flow away from there with the outflow channel in the cover position.
  • the sealing shoulder of the driving piston ensures that the remaining driving gases for the driving process act completely on the rear end of the driving piston.
  • the axial stop can be designed in different ways.
  • this can be a hollow cylindrical extension with a transverse bore running adjacent to the sealing shoulder.
  • An axial stop in the form of a pin with a full cross-section with a smaller diameter than the bore cross-section of the barrel has proven to be particularly simple in terms of production technology.
  • the propellant gases can thus reach the blow-off openings in the central bore of the barrel along the pin.
  • the axial stop is advantageously supported on the guide bush when the driving piston is in the ignition-ready position.
  • the guide bush which is axially fixed relative to the barrel, has a bottom which is penetrated by one or more inflow channels which open into the combustion chamber.
  • the blow-off openings are in connection with the combustion chamber when the driving piston is in the ignition-ready position.
  • the axial stop of the driving piston it is also possible for the axial stop of the driving piston to be axially supported on a shoulder on the barrel side, this shoulder being able to be formed, for example, by narrowing the cross section of the central bore or by a rear bottom thereof.
  • the bottom can in turn have an inflow channel for the propellant gases from the combustion chamber.
  • blow-off openings with different cross sections are provided for setting different power levels.
  • one blow-off opening can be brought into congruence with the outflow channel in order to reduce the power, the power being increasingly reduced with increasing size of the blow-off opening.
  • the blow-off openings are expediently arranged in a direction of rotation of the barrel on a circumferential line with a successively increasing cross section.
  • the shape of the outflow channel can be chosen as desired.
  • the outflow channel is advantageously designed as a fillet with a longitudinal extent oriented essentially parallel to the barrel axis.
  • the fillet can be opened directly to the atmosphere.
  • An advantage of the design of the outflow channel as a fillet is, for example, the simplicity of manufacture, in that the fillet extends over a relatively long area, so that axial displacements of the blow-off openings that occur during the manufacture of the device are ineffective.
  • the size of the cross section of the outflow channel corresponds at least to the cross section of the largest blow-off opening. This ensures power regulation over the entire range of power levels corresponding to the number of blow-off openings with different cross-sections.
  • the large design of the outflow channel there is no build-up of propellant gases, which also eliminates the risk of deposits of propellant residues.
  • the setting tool designated overall by 1 essentially consists of a housing designated overall by 2, a barrel which is displaceably and rotatably mounted therein, overall designated 3 by a drive piston designated overall by 4, and a barrel 3 which overlaps the barrel 3 in the rear region, designated overall by 5 Guide bushing.
  • the housing 2 has a base body 6 and a handle 7 projecting laterally therefrom, to which a trigger 8 is assigned for triggering a setting process known per se.
  • the barrel 3 and the guide bush 5 are pushed into a centrally arranged receiving opening 9 of the base body 6 until they come to rest on the base 9a.
  • In the housing 2 there is also an ignition pin 11 of an ignition mechanism known per se. stored.
  • the base body 6 has a window-like opening 12 through which the device is charged with propellant charges when the barrel 3 is pulled forward.
  • a muzzle tube 13 is screwed onto the barrel 3 on the front.
  • the driving piston 4 is guided with a sealing shoulder 16 and a shaft 17 which is tapered relative thereto.
  • an axial stop 18 in the form of a cylindrical journal with a full cross section, the diameter of which is significantly smaller than that of the central bore 14.
  • the axial stop 18 has a transverse channel 19 and is supported on a base 21 of the guide bush 5 in the ignition-ready position shown.
  • the wall of the barrel 3 has two blow-off openings 22, 22a distributed over the circumference with a cross section of different sizes, as can be seen in particular in FIG. 2.
  • the blow-off opening 22 is in register with an outflow channel 23 designed as a groove in the guide bushing 5.
  • the outflow channel 23 is open to the atmosphere via the opening 12.
  • the guide bushing 5 is axially fixed relative to the barrel 3 by means of a locking ring 24.
  • a combustion chamber 25 in the guide bush 5 opens into the central bore 14 of the barrel 3 and receives a propellant in the form of a cartridge 26.
  • the non-rotatable mounting of the guide bush 5 is provided with a locking pin 27 screwed into it, which protrudes into a longitudinal slot 28 on the housing side.
  • the barrel 3 is also provided with a longitudinal slot 29 which serves for the passage of a bolt 31.
  • the bolt 31 also projects through the wall of the base body 6 and a mounting bush 32 provided for assembly purposes in the region of a circumferential slot 33, as shown in FIG. 3. With its outer end, the bolt 31 is in one on the base body 6 rotatably mounted actuation ring 34 set.
  • the bolt 31 serves on the one hand as a return element for the driving piston 4 and therefore projects into the central bore 14 in front of the sealing shoulder 16.
  • the pin 31 has the task of transmitting rotation of the actuating ring 34 to the barrel 3.
  • the cartridge 26 is ignited, whereupon the propellant gases reach the central bore 14 from the combustion chamber 25 via the transverse channel 19. A portion of the propellant gases flows into the atmosphere via the blow-off opening 22, which is covered by the discharge channel 23, and the opening 12. As a result, a correspondingly reduced force acts on the driving piston 4 for the driving-in process.
  • either the second blow-off opening 22a or no blow-off opening can be brought into register with the outflow channel 23.
  • the driving power is reduced even more, in the second rotating position the entire propellant gases are used to achieve maximum driving power.
  • the rotational positions of the barrel 3 corresponding to the power levels are maintained by corresponding latching positions of the actuating ring 34.
  • a locking ball 36 which is acted upon by a compression spring 35, is used in the locking recess exercises 37 of the actuating ring 34 comes into engagement.
  • the power levels can also be identified by optical markings between the actuation ring 34 and the base body 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP85810169A 1984-05-16 1985-04-16 Outil actionné par la poudre Withdrawn EP0162009A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843418238 DE3418238A1 (de) 1984-05-16 1984-05-16 Pulverkraftbetriebenes setzgeraet
DE3418238 1984-05-16

Publications (2)

Publication Number Publication Date
EP0162009A2 true EP0162009A2 (fr) 1985-11-21
EP0162009A3 EP0162009A3 (fr) 1986-01-02

Family

ID=6236052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810169A Withdrawn EP0162009A3 (fr) 1984-05-16 1985-04-16 Outil actionné par la poudre

Country Status (6)

Country Link
US (1) US4577793A (fr)
EP (1) EP0162009A3 (fr)
JP (1) JPS60242982A (fr)
AU (1) AU4244285A (fr)
DE (1) DE3418238A1 (fr)
ES (1) ES286746Y (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236265A3 (en) * 1986-02-22 1989-06-14 Hilti Aktiengesellschaft Powder-actuated setting tool
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
FR2832662A1 (fr) * 2001-11-27 2003-05-30 Hilti Ag Outil de scellement portatif, actionne par combustion interne, pour elements de fixation

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642606A1 (de) * 1986-12-13 1988-06-23 Hilti Ag Pulverkraftbetriebenes bolzensetzgeraet
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
US5208420A (en) * 1992-03-13 1993-05-04 Hamilton Brian K Propellant strip assembly
AUPN585495A0 (en) * 1995-10-09 1995-11-02 Ramset Fasteners (Aust.) Pty. Limited Power actuated tools with power adjustment means
US6053108A (en) 1998-01-13 2000-04-25 Senco Products, Inc. Propellant strip assembly and propellant charge structure
WO2006026709A2 (fr) * 2004-08-30 2006-03-09 Black & Decker Inc. Element de fixation par combustion
DE102006035410B4 (de) * 2006-11-08 2015-06-03 Hilti Aktiengesellschaft Positioniervorrichtung mit Auslösevermittlung für ein handgeführtes Setzgerät
US20090219403A1 (en) * 2008-02-29 2009-09-03 Sionyx, Inc. Compact passive low-light imaging apparatus
US8701543B2 (en) * 2011-09-06 2014-04-22 Armalite, Inc. Adjustable gas system for firearms
EP2886258A1 (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
EP2923797A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre
EP2923800A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre
EP2923799A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Appareil d'enfoncement
CN109813579A (zh) * 2017-11-22 2019-05-28 陈西雷 多点气体无损选通装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE573218A (fr) * 1957-11-29 1959-03-16 Pierre Termet Pistolet de scellement
AT274696B (de) * 1963-04-29 1969-09-25 Kern Hansen Einrichtung zum Einschlagen von Nägeln
US3204400A (en) * 1963-11-26 1965-09-07 United Shoe Machinery Corp Explosively-actuated stud-driving tool
MX143926A (es) * 1975-07-02 1981-08-04 Prospection & Inventions Mejoras en herramienta fijadora de tapones
FR2350176A1 (fr) * 1976-05-06 1977-12-02 Termet Pierre Appareil actionne par une charge de poudre
DE2737900C3 (de) * 1977-08-23 1980-06-26 Paul Dr. 4600 Dortmund Schreiber Einrichtung zum Beseitigen überschüssiger Eintreibenergie an Schußapparaten und Eintreibgeräten
DE3016280A1 (de) * 1980-04-28 1981-11-12 Hilti AG, 9494 Schaan Pulverkraftbetriebenes setzgeraet
US4358041A (en) * 1980-06-12 1982-11-09 Olin Corporation Powder-actuated tool with power adjustment and angle-fire control

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236265A3 (en) * 1986-02-22 1989-06-14 Hilti Aktiengesellschaft Powder-actuated setting tool
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
FR2832662A1 (fr) * 2001-11-27 2003-05-30 Hilti Ag Outil de scellement portatif, actionne par combustion interne, pour elements de fixation

Also Published As

Publication number Publication date
ES286746Y (es) 1986-06-01
EP0162009A3 (fr) 1986-01-02
DE3418238A1 (de) 1985-11-21
US4577793A (en) 1986-03-25
AU4244285A (en) 1985-11-21
JPS60242982A (ja) 1985-12-02
ES286746U (es) 1985-11-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

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Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19860203

17Q First examination report despatched

Effective date: 19861031

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18D Application deemed to be withdrawn

Effective date: 19870310

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JOCHUM, PETER