EP3034238A1 - Appareil d'enfoncement doté de chambre de combustion réglable - Google Patents

Appareil d'enfoncement doté de chambre de combustion réglable Download PDF

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Publication number
EP3034238A1
EP3034238A1 EP14199196.8A EP14199196A EP3034238A1 EP 3034238 A1 EP3034238 A1 EP 3034238A1 EP 14199196 A EP14199196 A EP 14199196A EP 3034238 A1 EP3034238 A1 EP 3034238A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
spring
central axis
movable
chamber wall
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Withdrawn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
EP14199196.8A
Other languages
German (de)
English (en)
Inventor
Markus Woerner
Thomas Sperrfechter
Peter STAUSS-REINER
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
Priority to EP14199196.8A priority Critical patent/EP3034238A1/fr
Priority to EP15813761.2A priority patent/EP3233379B1/fr
Priority to PCT/EP2015/079728 priority patent/WO2016096807A1/fr
Priority to US15/536,008 priority patent/US20170348840A1/en
Publication of EP3034238A1 publication Critical patent/EP3034238A1/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Withdrawn legal-status Critical Current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
    • 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
    • B25C1/008—Safety devices

Definitions

  • the invention relates to a tacker, in particular a hand-held tacker, according to the preamble of claim 1.
  • DE 102 26 878 A1 describes a driving tool for driving a nail into a workpiece in which a combustion chamber is charged with a fuel gas, wherein after a firing process, a driving piston is accelerated against the nail.
  • the combustion chamber has a movable combustion chamber wall, wherein an actuating rod is guided by means of a passage through a housing of the combustion chamber and is connected to the movable combustion chamber wall.
  • the movable combustion chamber wall is force-urged by a spring in the axial direction, wherein a force vector of the spring force coincides with a center axis of the combustion chamber.
  • the movable combustion chamber wall of the combustion chamber generally allows the combustion chamber to be collapsed, for example, as part of a safety device, if the device is not properly seated on a workpiece.
  • the combustion chamber is clamped before each setting process by the placement, so that in each case a StudentsstMail the fixed combustion chamber wall takes place.
  • the force vector of the spring is understood to mean a vector which corresponds in length, direction and point of application to the effect of the spring on the ground. In the case of the previously known structural solutions, the force vector in each case engages in the middle of the floor or runs on the center axis of the combustion chamber.
  • Unfavorable tilting moments acting on the movable combustion chamber wall can have different causes.
  • the tilting moments can be caused by an actuating mechanism acting on the ground.
  • the movable combustion chamber wall can also experience a moment by the targeted pressure on spring-loaded elements.
  • Such an element may be, for example, a gas valve, a safety switch or the like.
  • a pressure on a vortexing vortex plate can exercise a tilting moment on the ground.
  • the positioning of the spring or the force vector is chosen so that the influence of all moments on the movable combustion chamber wall is optimally compensated.
  • the offset is at least one tenth of a radius of the movable combustion chamber wall. Particularly preferably, the offset is at least one fifth of a radius of the movable combustion chamber wall. This makes it possible to compensate for particularly large tilting moments.
  • Aufsetzglied is arranged on the tacker, wherein the embarksetzglied is connected via a linkage with the adjustable bottom.
  • a Aufsetzglied serves as a reliable safety device in the operation of the tacker.
  • the attachment member may be formed, for example, as a sleeve arranged concentrically to a central axis of the device. Alternatively, it may be, for example, a laterally offset to the central axis arranged exposure.
  • the linkage is force-decoupled in a direction perpendicular to the central axis direction.
  • This allows a particularly flexible construction of the Aufsetzgliedes.
  • allowing the Aufsetzglieds on the substrate during the return of the device in the context of a settlement allows and improves the quality of attachment.
  • a force transmission point in the region of the force decoupling lies substantially in a line with the force vector of the spring.
  • a force decoupling in the present sense is understood to mean that in at least one plane between a front attachment point of the attachment member and the adjustable bottom there is such a separation of the linkage that no force is transmitted in the direction perpendicular to the central axis.
  • the force transmitted symmetrically from a centering axis to the attachment sleeve by means of the linkage to the ground is not torque-free relative to the central axis.
  • the resulting moment can be ideally compensated in the sense of the invention via the decentrally arranged spring.
  • the linkage comprises only a movable control rod, which passes through a passage in the combustion chamber and is connected to the adjustable bottom. This can then be arranged so that it does not adversely affect the main dimensions of the device. This ensures the accessibility of the device in narrow areas.
  • the compensation of a torque according to the invention is particularly advantageous, since a tilting of the control rod in the implementation can be avoided.
  • the tacker off Fig. 1 is a hand-held device comprising a housing 1 and a combustion chamber 2 received therein with a partially cylindrical combustion chamber wall. Adjacent to the combustion chamber 2 is a cylinder 3 with a guided therein driving piston 4.
  • a safety mechanism of the device comprises a Tarsetzglied in the form of a Materials toetzhülse 5, which is placed on a workpiece (not shown) and is pressed against the pressure of a spring 8. Only in this state, a driving operation can be triggered by igniting a fuel gas in the combustion chamber 2.
  • a swirl plate 6 is also arranged, which can be moved by an actuating rod 6a through the combustion chamber 2 before ignition.
  • a movable combustion chamber wall 7 of the combustion chamber 2 is movable along an axis A coinciding with the driving direction, so that the volume of the combustion chamber is variable.
  • the bottom 7 is supported for this purpose with the spring 8 against a rear wall 1 a of the outer housing 1.
  • the spring 8 exerts a force vector F on the movable combustion chamber wall 7.
  • the spring 8 designed as a helical spring is not arranged concentrically with respect to the axis A.
  • the force vector F of the spring 8 extends parallel to the axis A, but engages radially offset by an offset V to the central axis A to the movable combustion chamber wall 7 at.
  • the size of the offset V in the present case is about 23% of a radius of the movable combustion chamber wall 7 or the combustion chamber 2.
  • the length of the force vector F varies according to the respective tension of the spring 8.
  • the force vector F does not run alongside the combustion chamber, but overlaps in the plane perpendicular to the central axis with the cross section of the combustion chamber 2.
  • the spring 8 is directly on the back of the movable combustion chamber wall. 7 supported.
  • the movable combustion chamber wall 7 can be moved via the linkage 10 in the direction of the axis, wherein both the linkage 10 and the control rod 9 passes through a passage 10a or 9a in a front, second bottom of the combustion chamber.
  • the impressions of the attachment sleeve 5 acts on the linkage 10, which in turn displaces the movable combustion chamber wall 7 against the force of the spring 8.
  • the linkage 10 and the control rod 9 extend within the combustion chamber parallel to the axis A, but are laterally offset.
  • the linkage 10 and the control rod 9 also extend laterally offset to the force vector F.
  • the control rod 9 is part of the Anpresssystems, it is connected by the movable combustion chamber wall 7 with the linkage 10, which in turn is connected to the landing member.
  • the attachment member 5 is sleeve-shaped and arranged concentrically around the axis A in the region of its abutment on the workpiece.
  • An integrally formed extension 5a protrudes laterally and supports the attachment member 5 in a power transmission point 11 against the linkage 10 from.
  • a force of the attachment sleeve is transmitted to a direction parallel only to the central axis, on the other hand only in the linkage direction. In the direction perpendicular thereto is a free play in the power transmission point 11, so that there is a force decoupling in these directions.
  • the further linkage 10 is formed without Kraftentkoppelache and therefore also transmits moments.
  • the decoupling in the power transmission point 11 in particular allows the whereabouts of the bolt guide on the workpiece during the return of the device as a result of the combustion. It also allows the simple design of an actuator 12 in the field of Aufsetzgliedes 5. By means of the actuator 12, the stop depth of the Aufsetzgliedes 5 is adjustable.
  • the control rod 9 is connected to the bottom 7 torque-resistant.
  • the linkage 10 is in turn momentarily connected to the bottom 7.
  • the force vector is approximately or substantially on a line parallel to the central axis line with the power transmission point eleventh
  • the position of the force vector F and the spring 8 may still be fine-corrected. This takes place taking into account further forces exerting a moment on the adjustable combustion chamber wall 7.
  • Such additional forces can be generated, for example, by an inlet and outlet valve 13 mechanically connected to the movable combustion chamber wall 7, a safety switch (not shown) or the spring of the swirl plate 6 prestressed by the rod 10.
  • the various forces which exert a tilting moment on the movable combustion chamber wall 7 depend on the position of the movable combustion chamber wall 7 or the respective operating state. Therefore, a complete compensation of all moments is generally not always achievable.
  • the location of the force vector F can be chosen such that the maximum tilting moments acting on the ground are minimized during operation. As a result, jamming or friction of the movable combustion chamber wall 7 is effectively reduced in the course of its adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP14199196.8A 2014-12-19 2014-12-19 Appareil d'enfoncement doté de chambre de combustion réglable Withdrawn EP3034238A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14199196.8A EP3034238A1 (fr) 2014-12-19 2014-12-19 Appareil d'enfoncement doté de chambre de combustion réglable
EP15813761.2A EP3233379B1 (fr) 2014-12-19 2015-12-15 Appareil d'enfoncement doté de chambre de combustion réglable
PCT/EP2015/079728 WO2016096807A1 (fr) 2014-12-19 2015-12-15 Cloueuse à chambre de combustion réglable
US15/536,008 US20170348840A1 (en) 2014-12-19 2015-12-15 Drive-in device with adjustable combustion chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14199196.8A EP3034238A1 (fr) 2014-12-19 2014-12-19 Appareil d'enfoncement doté de chambre de combustion réglable

Publications (1)

Publication Number Publication Date
EP3034238A1 true EP3034238A1 (fr) 2016-06-22

Family

ID=52103088

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14199196.8A Withdrawn EP3034238A1 (fr) 2014-12-19 2014-12-19 Appareil d'enfoncement doté de chambre de combustion réglable
EP15813761.2A Active EP3233379B1 (fr) 2014-12-19 2015-12-15 Appareil d'enfoncement doté de chambre de combustion réglable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15813761.2A Active EP3233379B1 (fr) 2014-12-19 2015-12-15 Appareil d'enfoncement doté de chambre de combustion réglable

Country Status (3)

Country Link
US (1) US20170348840A1 (fr)
EP (2) EP3034238A1 (fr)
WO (1) WO2016096807A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2923800A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69604707T2 (de) * 1995-02-15 2000-04-27 Spit Soc Prospect Inv Techn Setzgerät mit Kolben, angetrieben mit komprimiertem Gas
US20010006044A1 (en) * 1999-12-23 2001-07-05 Roland Hasler Portable internal combustion-engined tool and method of forming a gas mixture in the tool combustion chamber
DE10226878A1 (de) 2002-06-17 2003-12-24 Hilti Ag Gasbetriebenes Setzgerät
DE102005006168A1 (de) * 2005-02-10 2006-08-24 Hilti Ag Brenngasbetriebenes Setzgerät
DE102005000107A1 (de) * 2005-08-25 2007-03-01 Hilti Ag Pneumatisch betriebenes Setzgerät

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2774017B1 (fr) * 1998-01-27 2000-03-17 Spit Soc Prospect Inv Techn Appareil de fixation a piston propulse par gaz comprime
DE19950345C2 (de) * 1999-10-19 2003-06-05 Hilti Ag Verfahren und Vorrichtung zum Antrieb eines Kolbens eines brennkraftbetriebenen Arbeitsgeräts, insbesondere eines Setzgeräts für Befestigungselemente
DE19962598C2 (de) * 1999-12-23 2002-03-14 Hilti Ag Tragbares, brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente und Verfahren zu seiner Betriebssteuerung
DE19962698C2 (de) * 1999-12-23 2002-09-19 Hilti Ag Brennkraftbetriebenes Arbeitsgerät mit Brennkammer-Druckregulierung
DE19962696C1 (de) * 1999-12-23 2001-06-07 Hilti Ag Brennkraftbetriebenes Arbeitsgerät mit Bremseinrichtung für seinen Kolben
DE19962599C2 (de) * 1999-12-23 2002-09-19 Hilti Ag Tragbares, brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente, sowie Verfahren zu seiner Betriebssteuerung
JP3780822B2 (ja) * 2000-05-23 2006-05-31 日立工機株式会社 釘打機
DE10135031C2 (de) * 2001-07-18 2003-08-14 Hilti Ag Tragbares, brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente
US6647969B1 (en) * 2001-10-30 2003-11-18 Joseph S. Adams Vapor-separating fuel system utilizing evaporation chamber
US6892524B1 (en) * 2003-11-03 2005-05-17 Illinois Tool Works Inc. Latching mechanism for combustion chamber plate of a fastener driving tool
DE102004043955B4 (de) * 2004-09-11 2006-07-20 Hilti Ag Brennkraftbetriebenes Setzgerät
DE102004043950B4 (de) * 2004-09-11 2006-10-12 Hilti Ag Brennkraftbetriebenes Setzgerät
DE102004049474B3 (de) * 2004-10-11 2006-03-30 Hilti Ag Brenngasbetriebenes Setzgerät
DE102005006167B4 (de) * 2005-02-10 2017-01-12 Hilti Aktiengesellschaft 10.02.2005Brenngasbetriebenes Setzgerät
DE102005000134A1 (de) * 2005-10-05 2007-04-12 Hilti Ag Brennkraftbetriebenes Setzgerät
FR2891760B1 (fr) * 2005-10-11 2008-01-11 Maurice Liesse Appareil a main a gaz a combustion interne.
DE102005000149A1 (de) * 2005-11-04 2007-05-10 Hilti Ag Brennkraftbetriebenes Setzgerät
DE102006000179A1 (de) * 2006-04-13 2007-10-18 Hilti Ag Brennkraftbetriebenes Setzgerät
US8292143B2 (en) * 2010-10-12 2012-10-23 Stanley Fastening Systems, L.P. Dry fire lockout with bypass for fastener driving device
EP2886254A1 (fr) * 2013-12-20 2015-06-24 HILTI Aktiengesellschaft Appareil de travail
EP3034240A1 (fr) * 2014-12-19 2016-06-22 HILTI Aktiengesellschaft Appareil d'enfoncement doté d'un guide dans une chambre de combustion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69604707T2 (de) * 1995-02-15 2000-04-27 Spit Soc Prospect Inv Techn Setzgerät mit Kolben, angetrieben mit komprimiertem Gas
US20010006044A1 (en) * 1999-12-23 2001-07-05 Roland Hasler Portable internal combustion-engined tool and method of forming a gas mixture in the tool combustion chamber
DE10226878A1 (de) 2002-06-17 2003-12-24 Hilti Ag Gasbetriebenes Setzgerät
DE102005006168A1 (de) * 2005-02-10 2006-08-24 Hilti Ag Brenngasbetriebenes Setzgerät
DE102005000107A1 (de) * 2005-08-25 2007-03-01 Hilti Ag Pneumatisch betriebenes Setzgerät

Also Published As

Publication number Publication date
EP3233379A1 (fr) 2017-10-25
US20170348840A1 (en) 2017-12-07
WO2016096807A1 (fr) 2016-06-23
EP3233379B1 (fr) 2018-09-19

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