EP0972615A2 - Outil de scellement actionné par poudre - Google Patents

Outil de scellement actionné par poudre Download PDF

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Publication number
EP0972615A2
EP0972615A2 EP99810534A EP99810534A EP0972615A2 EP 0972615 A2 EP0972615 A2 EP 0972615A2 EP 99810534 A EP99810534 A EP 99810534A EP 99810534 A EP99810534 A EP 99810534A EP 0972615 A2 EP0972615 A2 EP 0972615A2
Authority
EP
European Patent Office
Prior art keywords
piston
setting direction
setting
driving piston
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.)
Granted
Application number
EP99810534A
Other languages
German (de)
English (en)
Other versions
EP0972615B1 (fr
EP0972615A3 (fr
Inventor
Mario Grazioli
Gebhard Gantner
Sybille Renner
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 EP0972615A2 publication Critical patent/EP0972615A2/fr
Publication of EP0972615A3 publication Critical patent/EP0972615A3/fr
Application granted granted Critical
Publication of EP0972615B1 publication Critical patent/EP0972615B1/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
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers

Definitions

  • the invention relates to a powder-operated setting tool according to the preamble of Claim 1.
  • a setting tool is known from EP-0 330 950 known in which propellant charges of uniform hardness are used.
  • the different Collecting services are carried out by means of a device-based power regulation performed.
  • the piston guide of this known setting tool has a barrel bore on, in which a driving piston is arranged displaceable parallel to the setting direction.
  • a cartridge receptacle and an outflow channel open into the bore Cross-sectional area can be changed by means of a regulating pin. Because with this known setting tool when igniting a cartridge immediately after the start of the driving piston the discharge channel is released, part of the propellant pressure already drops, before he has built up completely.
  • the invention has for its object an economically producible, powder power operated To create setting tool, which immediately after the start of the driving piston A drop in the propellant gas pressure is prevented and the discharge channel is only released occurs when the driving piston has been displaced in the setting direction.
  • the outflow channel not released in the setting direction directly at the start of the driving piston, but only if the driving piston moves the sealing area after a certain displacement in the setting direction releases and connects the cartridge holder with the outflow channel.
  • the sealing area is preferably from the inner wall a cylindrical recess in a stop surface pointing in the setting direction the piston guide and the outer wall of an attachment one against each other the setting direction facing counter surface of the driving piston, the Cartridge holder in the cylindrical recess and the outflow channel in the Open the stop surface in the barrel bore.
  • the approach is preferably cylindrical. This will improve Sealing properties achieved in the sealing area.
  • the stop surface is expediently part of a cylindrical projection, the in the setting direction of a bottom of the piston guide pointing in the setting direction protrudes, the counter surface of the driving piston part of a cylindrical recess, which in Setting direction from a free end of the driving piston pointing counter to the setting direction is spaced and the diameter of the cylindrical projection and the cylindrical recess of substantially the same size.
  • the cross-sectional area of the outflow channel is advantageously by means of a Regulating device changeable.
  • the regulating device is, for example around a bore which penetrates the outflow channel essentially vertically, in which is a displaceable regulating pin.
  • the piston guide 1 shown in FIGS. 1 to 3 one not shown in its entirety Setting tool has a central bore 2 in which a driving piston 5 parallel to Setting direction is arranged displaceable.
  • the extension of the bore 2 is countered the setting direction of a floor 14 is limited by that in the setting direction central, cylindrical projection 13 with a stop surface 7 on the setting direction protrudes.
  • a cylindrical recess 8 In the central area of this stop surface 7 extends against the setting direction a cylindrical recess 8.
  • the diameter of the projection 13 is smaller than the inside diameter of the bore 2.
  • the piston guide 1 also has a cross section opposite to the setting direction widening cartridge holder 3 with a connecting channel to barrel bore 2 on, the connecting channel in the central region of the cylindrical recess 8 in the bore 2 opens.
  • a discharge channel connected to the atmosphere 4 also has the piston guide 1, one parallel to the setting direction extending section of the outflow channel 4 in the stop surface 7 of the piston guide 1 opens into the bore 2.
  • a section perpendicular to the setting direction the outflow channel 4 is penetrated by a bore 18, the receiving and the Guidance of a parallel to the setting direction displaceable regulating pin 17 is used with the Help the cross-sectional area of the outflow channel 4 can be changed.
  • the driving piston 5 has a shaft 19 on the setting direction and an associated, flange-shaped sealing part 20 with a counter to the setting direction showing free end 16.
  • a cylindrical recess 15 in the setting direction starting from the free end 16 with a counter surface 10 forming the base of the recess 15.
  • From this counter surface 10 projects from a cylindrical projection 11, the diameter of which is smaller than one Inner diameter of the cylindrical recess 8 and is substantially the same size like the diameter of the cylindrical recess 8 arranged in the piston guide.
  • the extension of this cylindrical recess 8 and the cylindrical extension 11 parallel to the setting direction is essentially the same size.
  • the cylindrical sealing area 6, which extends parallel to the setting direction, is formed by the cylindrical recess 8 and the cylindrical projection 11 formed, the inner wall 9 of the cylindrical recess 8 and the outer wall 12 of the cylindrical Approach 11 form interacting sealing surfaces.
  • the initial acceleration of the Driving piston can be influenced.
  • the initial acceleration is all the more the smaller the smaller the extent of the sealing area.
  • the extent of the sealing area parallel to the setting direction is, for example, 0.2 to 8 mm.
  • the initial acceleration can be determined with the diameter of the outflow channel influence the following, further acceleration of the driving piston in the setting direction.
  • the diameter of the outflow channel is for example 1.5 mm to 7 mm.
  • the total propellant pressure becomes one ignited cartridge, not shown, for the initial acceleration of the Driving piston 5 used.
  • the propellants first counteract them the end of the protruding from the driving piston cylindrical approach. Only after the cylindrical neck 11 the cylindrical recess 8 has left, there is a connection between the cartridge holder 3 and the outflow channel 4, so that the propellant pressure can be regulated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Coating Apparatus (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Fertilizing (AREA)
  • Catching Or Destruction (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP99810534A 1998-07-13 1999-06-17 Outil de scellement actionné par poudre Expired - Lifetime EP0972615B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19831053 1998-07-13
DE19831053A DE19831053A1 (de) 1998-07-13 1998-07-13 Pulverkraftbetriebenes Setzgerät

Publications (3)

Publication Number Publication Date
EP0972615A2 true EP0972615A2 (fr) 2000-01-19
EP0972615A3 EP0972615A3 (fr) 2000-04-19
EP0972615B1 EP0972615B1 (fr) 2003-10-22

Family

ID=7873688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810534A Expired - Lifetime EP0972615B1 (fr) 1998-07-13 1999-06-17 Outil de scellement actionné par poudre

Country Status (7)

Country Link
US (1) US6161745A (fr)
EP (1) EP0972615B1 (fr)
JP (1) JP2000024955A (fr)
CN (1) CN1140384C (fr)
AT (1) ATE252443T1 (fr)
AU (1) AU754972B2 (fr)
DE (2) DE19831053A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886257A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR857501A0 (en) * 2001-10-30 2001-11-29 Cetram Pty Limited Fastener driving tools
US7201302B2 (en) * 2004-09-01 2007-04-10 Illinois Tool Works Inc. Driver blade with auxiliary combustion chamber for combustion powered fastener-driving tool
EP2886256A1 (fr) 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil de pose
TWM526944U (zh) * 2016-03-18 2016-08-11 李仲毅 可調整擊釘力量的火藥擊釘器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330950A2 (fr) 1988-03-03 1989-09-06 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre

Family Cites Families (7)

* 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
DE1478825A1 (de) * 1964-09-07 1969-02-06 Bauer Carl Fa Vorrichtung zum Eintreiben von mit einer Rondelle od.dgl. versehenen Bolzen in Bauteile od.dgl.
AT305922B (de) * 1969-02-18 1973-03-26 Gkn Screws Fasteners Ltd Kraftbetätigtes Werkzeug
DE4022673A1 (de) * 1990-07-17 1992-01-23 Hilti Ag Pulverkraftbetriebenes setzgeraet
DE19500320A1 (de) * 1995-01-07 1996-07-11 Hilti Ag Pulverkraftbetriebenes Bolzensetzgerät
DE19544104A1 (de) * 1995-11-27 1997-05-28 Hilti Ag Pulverkraftbetriebenes Setzgerät
FR2746690B1 (fr) * 1996-03-26 1998-05-29 Spit Soc Prospect Inv Techn Appareil d'entrainement de tampon par masselotte a retour automatique en position du tir

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330950A2 (fr) 1988-03-03 1989-09-06 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886257A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
WO2015091431A1 (fr) * 2013-12-18 2015-06-25 Hilti Aktiengesellschaft Appareil d'enfoncement
US10556332B2 (en) 2013-12-18 2020-02-11 Hilti Aktiengesellschaft Driving device

Also Published As

Publication number Publication date
JP2000024955A (ja) 2000-01-25
DE19831053A1 (de) 2000-01-20
CN1242275A (zh) 2000-01-26
EP0972615B1 (fr) 2003-10-22
AU3910599A (en) 2000-02-03
CN1140384C (zh) 2004-03-03
US6161745A (en) 2000-12-19
AU754972B2 (en) 2002-11-28
ATE252443T1 (de) 2003-11-15
DE59907418D1 (de) 2003-11-27
EP0972615A3 (fr) 2000-04-19

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