EP0621110A1 - Outil de scellement actionné par de la poudre - Google Patents

Outil de scellement actionné par de la poudre Download PDF

Info

Publication number
EP0621110A1
EP0621110A1 EP94810192A EP94810192A EP0621110A1 EP 0621110 A1 EP0621110 A1 EP 0621110A1 EP 94810192 A EP94810192 A EP 94810192A EP 94810192 A EP94810192 A EP 94810192A EP 0621110 A1 EP0621110 A1 EP 0621110A1
Authority
EP
European Patent Office
Prior art keywords
piston
cartridge carrier
setting tool
powder
tool according
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
EP94810192A
Other languages
German (de)
English (en)
Other versions
EP0621110B1 (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 EP0621110A1 publication Critical patent/EP0621110A1/fr
Application granted granted Critical
Publication of EP0621110B1 publication Critical patent/EP0621110B1/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-powered setting tool with a piston guide, within the guide bore of which propellant gases are used to propel a piston from a rear starting position from a cartridge holder forming the rear stop for the piston into a front end position, with the piston guide and a housing part surrounding it a channel is provided which is connected to the guide bore of the piston guide via openings in the initial position area and in the end position area of the piston.
  • a piston is driven by the propellant gases of a propellant charge that comes to ignition from a rear starting position into a front end position.
  • the piston acts on bolts, nails and the like fasteners which are driven directly into hard receiving materials such as concrete, metal and the like.
  • a mechanical, device-side feedback device has become very popular, which consists in pulling the piston guide forward over the piston in the front end position and then pushing the piston guide and the piston arranged therein back, so that the piston ultimately comes to lie in its rear starting position.
  • the invention has for its object to provide a powder-powered setting tool which has a piston return acting by using the propellant gases, in which a retention of the piston in its rear starting position is ensured in the cartridge carrier forming the rear stop for the piston.
  • the object is achieved in that the cartridge carrier of the setting tool can be displaced to a limited extent along the axis of the piston relative to the other device parts.
  • the limited displaceability of the cartridge carrier relative to the other parts of the device means that a rebound effect is avoided when the piston is driven from its front end position against its rear starting position due to the action of the compressed propellant gases.
  • the energy of the piston is transferred to the cartridge carrier in accordance with the laws of the pulse set, so that the piston stands still and instead of the piston the cartridge carrier is driven against the setting direction. Due to the limited displaceability, this movement takes place in an extremely limited frame that does not lead to a harmful dead space.
  • a simple design of a setting tool according to the invention is expedient if the cartridge carrier can be displaced to a limited extent along the axis of the piston relative to the housing part surrounding the piston guide.
  • the limited displaceability between the cartridge carrier and the housing part is preferably accomplished by a connection which allows the limited displaceability.
  • a connection expediently has stops on one part and counter-stops on the other part.
  • a threaded connection is provided as a connection between the cartridge carrier and the housing part.
  • a threaded connection enables simple assembly and disassembly of the setting tool, for example in the event of any necessary replacement of device parts or in the event of disassembly for the purpose of cleaning the setting tool.
  • a sawtooth thread is suitable, for example, which is expediently designed such that its flatter flanks run counter to the setting direction toward the axis of the piston.
  • a sawtooth thread designed in this way creates a type of conical surfaces and counter-conical surfaces which run against one another when the impact occurs. This makes it possible for a large part of the energy to be converted into friction and heat in the area of these cone surfaces and counter-cone surfaces.
  • the aforementioned conversion of the energy introduced into the cartridge carrier can be further supported, for example into elastic deformation, expediently in such a way that the cartridge carrier has open slots in the area of the threaded connection towards its free end.
  • the cartridge carrier is additionally elastic in the area of the threaded connection through shaping, that is to say in addition to its elasticity which may already be present due to the choice of material.
  • the mass ratios also play a role in connection with the avoidance of the rebound effect. It is advantageous if the mass of the cartridge carrier corresponds at least to the mass of the piston. However, the mass ratios are preferably designed in such a way that the mass of the cartridge carrier corresponds approximately to 1 to 3 times the mass of the piston. The influencing factors that lead to such a mass selection are formed in particular by the friction conditions and the material properties of the parts concerned.
  • FIG. 1 is limited to the device parts which are decisive in connection with the present invention.
  • the piston guide 2 has a guide bore 2a.
  • the piston guide 2 is surrounded by a housing part 3 which is connected to a cartridge carrier 4.
  • a sawtooth thread 3a, 4a serves to connect the housing part 3 and the cartridge carrier 4.
  • the cartridge carrier 4 has a receiving bore 4b for the rear region 1a of the piston 1.
  • the bottom 4c of the receiving bore 4b forms on the cartridge carrier 4 the rear stop for the piston 1 in its rear starting position.
  • the cartridge carrier 4 is also provided with a cartridge receptacle 4d, which is connected to the receiving bore 4b via a through hole 4e.
  • a channel 5 is provided, which continues in the area of the cartridge carrier 4 against the setting direction.
  • the channel 5 is connected to the guide bore 2a of the piston guide 2 via an opening 6 in the initial position area and an opening 7 in the end position area.
  • the opening 7 in the end position region opens into the guide bore 2a in front of a pin guide 8 which serves to guide the piston shaft 1b.
  • the effect of the piston return according to the invention is such that after a propellant charge is ignited within the cartridge receptacle 4d, the propellant gases pass through the through hole 4e and act on the piston 1 such that it is driven from its rear starting position to its front end position.
  • the rear region 1a of the piston 1 leaves the receiving bore 4b, so that a remaining portion of the propellant gases reaches the channel 5 via the opening 6.
  • These propellant gases pass through the opening 7 from the channel 5 into the guide bore 2a, where they are compressed by the piston 1. Because of these compressed propellant gases, the piston 1 is driven from its front end position back to its rear starting position after the driving-in process has been completed.
  • the rear region 1a of the piston 1 hits the bottom 4c of the cartridge carrier 4, which has the consequence that the piston 1 stops due to the shock transmission and the cartridge carrier 4 is driven counter to the setting direction until the limited axial displaceability is used up is.
  • this limited axial displaceability is determined by the play between the flanks of the sawtooth thread 3a, 4a.
  • the effect can be supported by material-related or shape-related elasticity of the cartridge carrier 4, the shape-related, for example by a slot 4f in the area of the sawtooth thread 3a, 4a. Due to the elastic effect and due to the rebound effect between the tooth flanks after the game has been used up, the cartridge carrier 4 is again driven in the setting direction, so that it assumes its original position shown in FIG. 1, in which there is no dead space between the rear region 1 a of the piston 1 and Bottom 4c of the receiving bore 4b is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Detergent Compositions (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Lock And Its Accessories (AREA)
  • Window Of Vehicle (AREA)
  • Fertilizing (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Actuator (AREA)
  • Adornments (AREA)
  • Toys (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Catching Or Destruction (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Medicinal Preparation (AREA)
EP94810192A 1993-04-17 1994-03-29 Outil de scellement actionné par de la poudre Expired - Lifetime EP0621110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4312567A DE4312567A1 (de) 1993-04-17 1993-04-17 Pulverkraftbetriebenes Setzgerät
DE4312567 1993-04-17

Publications (2)

Publication Number Publication Date
EP0621110A1 true EP0621110A1 (fr) 1994-10-26
EP0621110B1 EP0621110B1 (fr) 1996-09-11

Family

ID=6485702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810192A Expired - Lifetime EP0621110B1 (fr) 1993-04-17 1994-03-29 Outil de scellement actionné par de la poudre

Country Status (16)

Country Link
US (1) US5394702A (fr)
EP (1) EP0621110B1 (fr)
JP (1) JP3330220B2 (fr)
KR (1) KR100274902B1 (fr)
CN (1) CN1045407C (fr)
AT (1) ATE142549T1 (fr)
AU (1) AU667005B2 (fr)
CA (1) CA2121283C (fr)
DE (2) DE4312567A1 (fr)
DK (1) DK0621110T3 (fr)
ES (1) ES2091678T3 (fr)
FI (1) FI110586B (fr)
HU (1) HU214996B (fr)
NO (1) NO179134C (fr)
PL (1) PL172779B1 (fr)
TW (1) TW247287B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016946A (en) * 1997-12-31 2000-01-25 Porter-Cable Corporation Internal combustion fastener driving tool shuttle valve
US6045024A (en) * 1997-12-31 2000-04-04 Porter-Cable Corporation Internal combustion fastener driving tool intake reed valve
USD410182S (en) 1997-12-31 1999-05-25 Porter-Cable Corporation Internal combustion fastener driving tool
US6006704A (en) * 1997-12-31 1999-12-28 Porter-Cable Corporation Internal combustion fastener driving tool fuel metering system
US6260519B1 (en) * 1997-12-31 2001-07-17 Porter-Cable Corporation Internal combustion fastener driving tool accelerator plate
US6041603A (en) * 1997-12-31 2000-03-28 Porter-Cable Corporation Internal combustion fastener driving tool accelerator plate
US6059162A (en) * 1998-10-16 2000-05-09 Illinois Tool Works Inc. Exhaust baffle and spring assisted reset and dampener for powder actuated tool
KR100482491B1 (ko) * 2002-05-17 2005-04-14 기아자동차주식회사 차량의 창문 파쇄용 비상 해머
DE102009016947A1 (de) 2009-04-08 2010-10-14 Fischerwerke Gmbh & Co. Kg Brennkraftgetriebenes Setzgerät
US9701046B2 (en) 2013-06-21 2017-07-11 Pavestone, LLC Method and apparatus for dry cast facing concrete deposition
KR101543731B1 (ko) 2013-12-11 2015-08-11 이장우 비대칭 나사가 형성되는 유체 분사장치
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188065A (fr) * 1957-11-29 1959-09-18 Perfectionnements aux pistolets de scellements
FR1343284A (fr) * 1962-01-04 1963-11-15 Perfectionnements aux pistolets pour l'enfoncement de chevilles d'ancrage dans des maériaux durs
US3321122A (en) * 1964-09-03 1967-05-23 Fur Montage Technik Anstalt Stud driver
FR2322696A1 (fr) * 1975-09-08 1977-04-01 Hilti Ag Pistolet fixateur a cartouches a amortissement du bruit
US4113163A (en) * 1976-09-16 1978-09-12 Marc Combette Fastening tool using caseless munition
GB2091395A (en) * 1980-12-19 1982-07-28 Burndy Corp Cartridge-operated Devices
DE3123537A1 (de) * 1981-06-13 1982-12-30 "F. u. K." Frölich & Klüpfel Drucklufttechnik GmbH & Co KG, 5600 Wuppertal "schriftenhammer"
EP0223740A2 (fr) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0274957A1 (fr) * 1986-12-23 1988-07-20 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement à tir indirect

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575071A (en) * 1948-02-27 1951-11-13 Gaynor O Rockwell Explosive-operated device
US3168744A (en) * 1963-02-01 1965-02-09 Omark Industries Inc Explosively-actuated stud-driving tool
US3204400A (en) * 1963-11-26 1965-09-07 United Shoe Machinery Corp Explosively-actuated stud-driving tool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188065A (fr) * 1957-11-29 1959-09-18 Perfectionnements aux pistolets de scellements
FR1343284A (fr) * 1962-01-04 1963-11-15 Perfectionnements aux pistolets pour l'enfoncement de chevilles d'ancrage dans des maériaux durs
US3321122A (en) * 1964-09-03 1967-05-23 Fur Montage Technik Anstalt Stud driver
FR2322696A1 (fr) * 1975-09-08 1977-04-01 Hilti Ag Pistolet fixateur a cartouches a amortissement du bruit
US4113163A (en) * 1976-09-16 1978-09-12 Marc Combette Fastening tool using caseless munition
GB2091395A (en) * 1980-12-19 1982-07-28 Burndy Corp Cartridge-operated Devices
DE3123537A1 (de) * 1981-06-13 1982-12-30 "F. u. K." Frölich & Klüpfel Drucklufttechnik GmbH & Co KG, 5600 Wuppertal "schriftenhammer"
EP0223740A2 (fr) * 1985-11-19 1987-05-27 HILTI Aktiengesellschaft Outil de scellement actionné par de la poudre
EP0274957A1 (fr) * 1986-12-23 1988-07-20 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement à tir indirect

Also Published As

Publication number Publication date
HU9401101D0 (en) 1994-07-28
ATE142549T1 (de) 1996-09-15
JP3330220B2 (ja) 2002-09-30
KR100274902B1 (ko) 2000-12-15
ES2091678T3 (es) 1996-11-01
NO941384L (no) 1994-10-18
JPH06315876A (ja) 1994-11-15
CN1099687A (zh) 1995-03-08
DE59400620D1 (de) 1996-10-17
AU5936994A (en) 1994-10-20
AU667005B2 (en) 1996-02-29
NO941384D0 (no) 1994-04-15
HUT69244A (en) 1995-08-28
PL172779B1 (pl) 1997-11-28
CA2121283A1 (fr) 1994-10-18
DK0621110T3 (fr) 1997-03-17
TW247287B (fr) 1995-05-11
US5394702A (en) 1995-03-07
NO179134B (no) 1996-05-06
HU214996B (hu) 1998-08-28
NO179134C (no) 1996-08-14
FI110586B (fi) 2003-02-28
FI941748A (fi) 1994-10-18
EP0621110B1 (fr) 1996-09-11
FI941748A0 (fi) 1994-04-15
CN1045407C (zh) 1999-10-06
DE4312567A1 (de) 1994-10-20
CA2121283C (fr) 2000-06-13

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