EP1097785B1 - Pulverkraftbetriebenes Setzgerät - Google Patents

Pulverkraftbetriebenes Setzgerät Download PDF

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Publication number
EP1097785B1
EP1097785B1 EP00810096A EP00810096A EP1097785B1 EP 1097785 B1 EP1097785 B1 EP 1097785B1 EP 00810096 A EP00810096 A EP 00810096A EP 00810096 A EP00810096 A EP 00810096A EP 1097785 B1 EP1097785 B1 EP 1097785B1
Authority
EP
European Patent Office
Prior art keywords
driving tool
sealing element
sealing
tool according
annular cutout
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.)
Expired - Lifetime
Application number
EP00810096A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1097785A3 (de
EP1097785A2 (de
Inventor
Gerhard Ehmig
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 EP1097785A2 publication Critical patent/EP1097785A2/de
Publication of EP1097785A3 publication Critical patent/EP1097785A3/de
Application granted granted Critical
Publication of EP1097785B1 publication Critical patent/EP1097785B1/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
    • B25C1/105—Cartridge ejecting mechanisms and latch mechanisms
    • 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
    • B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
    • B25C1/163—Cartridges

Definitions

  • the invention relates to a powder-operated setting tool according to the preamble of patent claim 1.
  • a powder power driven setting tool which has a guide cylinder with an inner bore in which a drive piston is arranged axially displaceable.
  • a relative to the guide cylinder substantially coaxially arranged shock bottom closes against the setting direction of the guide cylinder.
  • This impact floor has a cartridge bearing in a setting direction end region. The clear width of the cartridge storage increases towards the free end of the floor.
  • the guide cylinder has, at an end region pointing in the opposite direction to the setting direction, an annular cutout in which an annular sealing element is arranged.
  • the annular cut-out divides the end region of the guide cylinder pointing in the opposite direction to the setting direction into a central cylindrical section and an annular outer section surrounding this cylindrical section at a distance.
  • the free end of the central portion forms a counter surface with which a cartridge inserted in the cartridge storage can be fixed.
  • the counter surface projects beyond the remaining part of the front side against the setting direction.
  • the propellant gas pressure generated when igniting the cartridge passes from the cartridge bearing via a connecting channel to an inner wall of the annular sealing element with a U-shaped cross-section, the opening of which is open towards the central longitudinal axis of the sealing element.
  • the propellant gas pressure generated by the cartridge does not act entirely in the setting direction on the sealing element in this known setting tool, but in two parallel to the setting direction, opposite directions, so that an expansion of the sealing element takes place in two opposite directions.
  • the invention has for its object to provide a powder-powered setting tool, wherein the sealing member seals the receiving chamber well and is pressed with a contact pressure against the first part, which corresponds to the propellant gas pressure.
  • the inventive design and arrangement of the annular sealing element allows a propellant gas pressure-dependent pressing of the sealing element against the first part.
  • the propellant gas pressure produced when igniting a cartridge is conducted from the cartridge bearing via the connecting channels of the second part to a bottom of the annular cutout and deflected from there to a counter to the setting direction facing engagement surface of the annular sealing element.
  • the displaceable within the annular cutout parallel to the setting direction sealing element is thus strongly pressed at a high propellant gas pressure and less at a lower propellant gas pressure against the first part with the interposition of the receiving part and the cover part of the cartridge.
  • the sealing element preferably has a sealing portion and at a setting direction end portion of the sealing portion a flange-like extension, the outer contour is greater than the largest clear width of the annular cutout.
  • the distance between the flange-like enlargement and the engagement surface of the sealing element pointing in the opposite direction to the setting direction is smaller than the depth of the annular cutout extending parallel to the setting direction.
  • the annular sealing element thus supports against the setting direction of the setting direction side end face of the second part.
  • propellant gases may be a small amount between the outer wall of the sealing element and the Outer wall of the annular cutout escape.
  • a venting channel opens into a circumferentially formed recess which is arranged on an end face of the shock bottom pointing in the setting direction and which, starting from the outer contour of the annular cutout, radially outside, but not extending to the outer contour of the floor.
  • the sealing section of the sealing element cooperates expediently with a sealing region of the annular cutout.
  • the sealing region is preferably formed by at least one lamellar seal, which is arranged in a lateral recess of the annular cutout.
  • the opposite surface of the second part projects beyond the largest clear width of the cartridge bearing in the radial direction.
  • the first part is expediently formed by a guide cylinder and the second part by a buttock of the setting tool.
  • the powder-operated setting device shown in FIGS. 1 and 2 has a first part in the form of a guide cylinder 1 and a second part in the form of a shock-absorbing bottom 2. Both parts are arranged substantially coaxially with each other and parallel to the setting direction mutually displaceable.
  • the impact floor 2 facing end region has a cartridge storage 3, whose clear width W1 increases towards the bottom 2 shock.
  • an inner bore 21, in the a drive piston 22 is arranged axially displaceable.
  • the inner bore 21 communicates with the cartridge bearing 3 via a connecting bore 20 in connection.
  • a cartridge 4 is arranged, which has a receiving part 5 with, for example, a plurality of receiving areas, which serve to receive a powdery propellant charge, for example.
  • a receiving part 5 with, for example, a plurality of receiving areas, which serve to receive a powdery propellant charge, for example.
  • the receiving areas can be closed by means of a cover part 6. Both the receiving part 5 and the cover part 6 are formed from a thin-walled film
  • the bottom of the bullet 2 has on a side facing the cartridge bearing 3 side an annular cutout 7, which faces the cartridge storage 3 end portion of the bottom 2 in a central shock-absorbing base cylindrical portion and a cylindrical portion surrounding this cylindrical portion at a distance annular outer portion divided.
  • connecting channels 13 which extend from a bottom of the annular cutout 7 to a counter surface 14, which is formed by the cartridge bearing 3 facing the end face of the cylindrical portion is. Starting from the bottom, the clear width of these connecting channels 13 increases towards the counter surface 14.
  • the cartridge bearing 3 has a largest clear width W1, which is surmounted by the counter surface 14 in the radial direction at least from the areas lying between the connecting channels 13.
  • annular sealing element 9 is arranged, which is composed of a substantially hollow cylindrical sealing portion 10 and a flange-like extension 11 with the outer diameter D1.
  • This flange-like extension 11 is arranged in a setting direction-side end region of the sealing element 9 and has a setting direction-side stop surface 17.
  • the depth T of the annular cut-out 7 is greater than the distance A between the flange-like extension 11 and an engagement surface 16, which is formed by a free end of the sealing section 10 pointing counter to the setting direction.
  • the sealing portion 10 has, for example, a slightly outwardly curved outer contour, which cooperates with a sealing region 8.
  • the sealing region 8 is, for example, three annular disc-shaped lamellar seals, which are resilient in the radial direction. These lamellae protrude partially into a circumferentially formed groove in the outer wall of the annular cutout 7 and partially into the clear width of the annular cutout 7.
  • the sealing portion of the annular sealing element and the sealing region of the shock-absorbing bottom in the region of the annular cut-out can be provided with matched, interlocking thread profiles which form a kind of labyrinth.
  • the annular sealing element 9 has on its pointing in the direction of the end face a sealing lug 12, which is formed by a circumferentially formed, thin-walled projection.
  • the inner wall of this projection facing the central cylindrical region of the impact floor 2 lies on the same radius as the inner wall of the annular sealing element 9.
  • the impact floor 2 has at its pointing in the setting direction end face on a circumferentially formed recess which extends, starting from the outer contour of the annular cutout 7, radially outward, but not to the outer contour of the bottom 2. In this depression opens a vent passage 15th
  • the peripheral region of the flange-like extension 11 of the annular sealing element 9 is in communication with an annular disc-shaped, elastic membrane 19, which in turn is fixedly connected to the setting direction-side end face of the shock-absorbing bottom 2.
  • the central cylindrical portion projects beyond the remaining part of the end face of the impact floor 2 in the setting direction with its mating surface 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Coating Apparatus (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
EP00810096A 1999-02-11 2000-02-04 Pulverkraftbetriebenes Setzgerät Expired - Lifetime EP1097785B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19905896A DE19905896A1 (de) 1999-02-11 1999-02-11 Pulverkraftbetriebenes Setzgerät
DE19905896 1999-11-02

Publications (3)

Publication Number Publication Date
EP1097785A2 EP1097785A2 (de) 2001-05-09
EP1097785A3 EP1097785A3 (de) 2004-01-14
EP1097785B1 true EP1097785B1 (de) 2006-05-10

Family

ID=7897306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810096A Expired - Lifetime EP1097785B1 (de) 1999-02-11 2000-02-04 Pulverkraftbetriebenes Setzgerät

Country Status (9)

Country Link
US (1) US6286743B1 (ja)
EP (1) EP1097785B1 (ja)
JP (1) JP2000237974A (ja)
CN (1) CN1140383C (ja)
AU (1) AU753510B2 (ja)
CA (1) CA2297649A1 (ja)
DE (2) DE19905896A1 (ja)
PL (1) PL189708B1 (ja)
TW (1) TW506883B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10161933A1 (de) * 2001-12-17 2003-06-18 Hilti Ag Kartusche, insbesondere für Setzgeräte und Vorrichtung zum Anzünden einer Treibladung, insbesondere für Setzgeräte
DE10253668B4 (de) * 2002-11-19 2015-03-05 Hilti Aktiengesellschaft Brennkraftbetriebenes Setzgerät
DE10259776B4 (de) * 2002-12-19 2005-04-28 Hilti Ag Zündvorrichtung für Folienkartuschen in einem brennkraftbetriebenen Arbeitsgerät, insbesondere in einem Setzgerät für Befestigungselemente
DE10259818A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente
DE10259772B4 (de) * 2002-12-19 2008-01-17 Hilti Ag Brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente
EP3124181A1 (de) * 2015-07-31 2017-02-01 HILTI Aktiengesellschaft Eintreibvorrichtung, kartuschenstreifen und befestigungssystem
CN112610583A (zh) * 2020-12-11 2021-04-06 浙江麦思登紧固件制造股份有限公司 一种直入式一体射钉

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2117885A (en) * 1934-12-06 1938-05-17 Hasek Jaroslav Firearm
US3572729A (en) * 1968-05-23 1971-03-30 Olin Corp Expanding ring seal
DE1808703C3 (de) * 1968-11-13 1978-05-11 Hilti Ag, Schaan (Liechtenstein) Pulverkraftbetriebenes Bolzensetzgerät mit im Gehäuse axial verschiebbar gelagertem Lauf
US3777614A (en) * 1971-06-03 1973-12-11 Remington Arms Co Inc Obturator for firearm adapted to fire caseless or expendable ammunition
US3783737A (en) * 1972-02-04 1974-01-08 Gen Electric Seal
DE2436446C2 (de) * 1974-07-29 1984-11-29 Hilti Ag, Schaan Pulverkraftbetriebenes Setzgerät
DE2826599C2 (de) * 1978-06-19 1983-01-05 Rheinmetall GmbH, 4000 Düsseldorf Abdichtvorrichtung für einen Keilverschluß an einer Rohrwaffe, insbesondere für hülsenlose Munition
DE3005341A1 (de) * 1980-02-13 1981-08-20 Hilti AG, 9494 Schaan Pulverkraftbetriebenes bolzen-setzgeraet
US5177317A (en) * 1992-01-09 1993-01-05 Teledyne Industries, Inc. Cable cutter assembly
FR2728064A1 (fr) * 1994-12-12 1996-06-14 Giat Ind Sa Dispositif d'etancheite pour arme a feu a munition sans douille
US5617925A (en) * 1995-06-05 1997-04-08 Sencorp Assembly for decelerating a driver in a tool
US5749509A (en) * 1995-06-05 1998-05-12 Sencorp Resiliently expandable ring seal for combustion chamber of propellant tool

Also Published As

Publication number Publication date
AU753510B2 (en) 2002-10-17
DE50012720D1 (de) 2006-06-14
EP1097785A3 (de) 2004-01-14
CA2297649A1 (en) 2000-08-11
AU1016300A (en) 2000-08-17
TW506883B (en) 2002-10-21
PL338345A1 (en) 2000-08-14
DE19905896A1 (de) 2000-08-17
US6286743B1 (en) 2001-09-11
PL189708B1 (pl) 2005-09-30
CN1140383C (zh) 2004-03-03
CN1262983A (zh) 2000-08-16
JP2000237974A (ja) 2000-09-05
EP1097785A2 (de) 2001-05-09

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