EP1997589B1 - Dispositif de positionnement doté d'une commutation de déclenchement pour un appareil de pose manuel - Google Patents

Dispositif de positionnement doté d'une commutation de déclenchement pour un appareil de pose manuel Download PDF

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Publication number
EP1997589B1
EP1997589B1 EP08103884A EP08103884A EP1997589B1 EP 1997589 B1 EP1997589 B1 EP 1997589B1 EP 08103884 A EP08103884 A EP 08103884A EP 08103884 A EP08103884 A EP 08103884A EP 1997589 B1 EP1997589 B1 EP 1997589B1
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EP
European Patent Office
Prior art keywords
positioning device
channels
axis
switching member
triggering
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.)
Active
Application number
EP08103884A
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German (de)
English (en)
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EP1997589A1 (fr
Inventor
Matthias Blessing
Walter SCHÄPPER
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
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Hilti AG
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Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1997589A1 publication Critical patent/EP1997589A1/fr
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Publication of EP1997589B1 publication Critical patent/EP1997589B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25CHAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00Hand-held nailing tools; Nail feeding devices
    • B25C1/008Safety devices

Definitions

  • the present invention relates to a positioning device with tripping mediation for an actuatable via a trigger element hand-held setting tool referred to in the preamble of claim 1.
  • Art Such positioning with triggering are z. B. used in overhead mounting with hand-held setting devices on high ceilings, where otherwise only work by means of working platforms or ladders would be possible.
  • the setting devices that can be used with the positioning device can, for. B. with solid, gaseous or liquid fuels or with compressed or compressed air or electrically operated.
  • Such a positioning device for combustion-powered setting tools is known, which has a connection means for a setting tool, which is arranged at one end of an elongate handle in the form of a rod or a rod.
  • the rod is axially displaceable relative to the attachment means to actuate the trigger switch of a setting device fixed to the attachment means via coupling means.
  • To trigger the setting device on the attachment means the setting device must be attached with its mouth part to a ceiling and the user then the handle or the rod to be moved towards the ceiling.
  • the positioning and triggering device further comprises a safety device which prevents triggering of the setting device in alignment with the mouth exactly in the direction of the gravitational force.
  • the safety device includes for this purpose designed as a ball locking element, which is guided in a direction obliquely to the longitudinal axis of the rod and formed as a channel recess in a component in the form of the connection means.
  • the ball rolls in an orientation in the direction of the gravitational force in the path of movement of the rod and prevents further movement of the rod relative to the carrier and thus the triggering of a carrier arranged on the setting device.
  • the rod has at its end facing the attachment means a radially circumferential further recess into which the ball can engage.
  • a disadvantage of this setting tool is that the diameter of the ball defines the maximum, available in the release position of the ball movement path of the handle relative to the housing, within which all the necessary functions such. As the triggering of the ignition must be done. It therefore requires a high contact pressure for this short movement. It is also disadvantageous that very different angles arise when lifting the setting device up to the activation and lowering of the setting device to the renewed locking of the setting device. In other words, the limit angle at which a setting process is still possible in the case of a deviation of the setting device from a vertical orientation opposite to that of the gravitational force may differ depending on which orientation changes the setting device has undergone prior to triggering. In addition, if the setting device is pressed with momentum horizontally against the wall or down against the ground, the locking ball from its locked position roll and the setting device can be released unintentionally.
  • the object of the present invention is therefore to develop a positioning and tripping device of the aforementioned type, which avoids the disadvantages mentioned and allows sufficient movement of the handle relative to the setting tool when pressed with at the same time low effort.
  • a positioning device with a triggering device for an actuatable via a trigger switch hand-held setting device having the features of the independent claim. Accordingly, at least three each guided in a channel locking elements are provided, wherein the channels are inclined relative to a plane perpendicular to the axis intersecting plane and wherein the channels intersect in regions an axial projection of the switching element and in this Overlapping areas are open to the switching element.
  • the channels run to the axial projection of the switching element similar to a secant, ie they do not run on the axis of the switching element, but they cut the axial projection peripherally.
  • the locking position of the safety device is not only in a particular orientation of the positioning, but rotationally symmetrical to the longitudinal axis in other deviating from the approved orientation tilting plies, since then always at least one blocking element in the overlap region of a channel with the Switching element is located and thus extends into the recess. So z. B. the locking position are always triggered when the positioning device in a tilted position to the vertical (i.e., the vector of the gravitational force opposite orientation) is transferred, which exceeds a maximum allowable tilt angle.
  • the maximum stroke of the switching element is not determined by the size of the blocking elements.
  • the controlled via the Anpressweg functions such.
  • the triggering of the setting device or the transport of cartridges in the case of powder-driven setting tools therefore, can be designed on the basis of the optimal force-displacement behavior. High contact forces can therefore be avoided.
  • the setting device can be triggered when the positioning device is arranged in an orientation in the direction of the vector of the gravitational force and / or a tilting position to this orientation.
  • the channels are distributed rotationally symmetrically about the axis around, so that the blocking function in each rotational position of the device around its longitudinal axis always at the same release angles allows a triggering mediation.
  • the locking elements are pin-shaped, whereby an early opening of the locking position can be prevented when the device is dynamically moved against a wall or a floor and the locking elements tend due to the accelerations occurring in the channels tend to move out of their blocking positions, there the pin-shaped locking elements, in contrast to spherical locking elements are blocking effective over their entire axial length. Early opening of the blocking position is thus avoided.
  • the switching element is rod-shaped and is guided in a cylindrical portion of the component designed as a coupling element.
  • This coupling element is part of the support structure on which the switching strand is guided with its moving parts, so that the safety device in an orientation which allows a setting process is relatively far down in the mass strand, so that the forces acting on the blocking element forces are lower in the case of blocking.
  • the device could also z. B. be formed by a handle or by the attachment means.
  • the channels are inclined at an angle between 20 ° and 50 ° to the axis perpendicularly intersecting plane.
  • the triggering circuit is reliably locked in an orientation perpendicular to the vector of gravitational force (horizontal orientation) or a dynamic pressing in the direction of gravitational force.
  • the overlapping areas of the channels for the axial projection of the switching element towards the axis have a depth which is smaller than the diameter of the channels.
  • the recess is designed as a circumferential annular groove which is closed in both axial directions of the switching element, whereby a good accessibility of the recess for the blocking elements is achieved and if the device is transferred to an orientation of the device which is not permitted for triggering easily from the channels into the recess can effectively engage.
  • an inventive positioning device 20 is shown with tripping mediation for a hand-held setting tool 10, which is for example modular.
  • the complete positioning device 20 are from FIG. 1 apparent parts 21 a and 21 b of a rod-like handle 21 on the coupling element 28 and the counter-coupling element 29 coupled together.
  • the connection between the coupling element 28 and the counter-coupling element 29 is releasable, so that the positioning device 20 together and can be disassembled again.
  • the longitudinal extension of the rod-like handle 21 defines an axis A of the positioning device 20.
  • Such positioning devices 20 are used to extend setting devices 10 to z. B. work overhead on ceilings etc. with the setting tool to perform.
  • This in Fig. 1 reproduced setting device 10 has a arranged in a single or multi-part housing 11 setting network for driving fasteners into a structural element.
  • a release element 13 is arranged on a handle 12 of the setting device 10 on the setting device 10.
  • the housing 11 upstream of a total of 14 designated mouth part is arranged, which is displaceable relative to the housing 11.
  • the positioning device 20 has a switching strand 30, via which the triggering mediation of an actuating element 24 of the rod-like handle 21 to the, z. B. trained as a trigger switch, triggering element 13 of the setting device 10 takes place.
  • the actuator 24 thus acts as a remote trigger switch.
  • the hand-held setting tool 10 is arranged on a connecting means 22 of the positioning device 20 and reversibly fixed there via first and second holding means 38, 39. By loosening the screw means 40 of the second holding means 39, the setting device 10 can be released again from the attachment means 22.
  • the connection between setting tool and positioning could alternatively be done via a screw, z. B. an internal thread on the setting tool and an external thread on the positioning device (or vice versa) is provided.
  • the first part 21a of the rod-like handle 21 has an actuating element 24 formed as an elongate actuating sleeve, which is guided on a supporting element 23 designed as a hollow rod of a support structure.
  • an actuating sleeve and an operating lever could be used, the z. B. on a handle portion on a coupling element 28 remote from the end of the handle 21 is arranged.
  • the actuating element 24 is displaceable parallel to the axis A relative to the support element 23.
  • a foot part 26 is arranged, which projects beyond an attachment means 22 remote from the axial end 27 of the actuating element 24.
  • the support member 23 is fixedly connected to the coupling element 28, which has a receptacle 36 for the counter-coupling element 29 at its end remote from the support element 23.
  • a support point 41 is formed for a spring element 42, which is formed with its other end of the spring via an inner sleeve formed as an intermediate element 43 on the Actuator 24 is supported and this in the direction of his Fig. 1 apparent starting position applied elastically.
  • the intermediate element 43 is fixedly connected to the actuating element 24.
  • the actuating element 24 is connected to a sleeve-shaped first switching element 33 of the switching strand 30, which at least partially surrounds a section 46 of the coupling element 28 fixed to the supporting element 23.
  • the first switching member 33 cooperates with a pin formed as second switching element 34 of the switching string 30, which is guided in a trained as a blind hole guide 44 in the coupling element 28 slidably.
  • the first switching member 33 is in turn connected via a perpendicular to the longitudinal axis A and designed as a pin connecting means 47 with the second switching element 34.
  • the connecting means 47 engages through slot-shaped openings (not visible in the figures) in the portion 46 of the coupling element 28, which allow a displacement of the connecting means 47 relative to the coupling element 28 and parallel to the axis A.
  • the attachment means 22 is arranged.
  • the annular counter-coupling element 29 which, as previously described, in the receptacle 36 in the coupling element 28 can be inserted.
  • the connection between the coupling element 28 and the counter-coupling element 29 is releasable, so that the positioning device 20 together and can be disassembled again.
  • the rod-like handle 21 has in the second part 21 b further comprises a third switching element 35 of the switching strand 30, which cooperates with the second switching element 34 when the coupling element 28 and the counter-coupling element 29 are connected together.
  • the third switching element 35 is rod-shaped and guided in an inner space of the second part 21 b of the rod-like handle 21. In the transition of the rod-like handle 21 to the connection means 22, the third switching element 35 can be coupled with other switching elements of the switching strand 30 at least in a direction of movement to the connection means 22 out.
  • a driver 37 is also still arranged, which cooperates with the triggering element 13 of the fastening means 22 arranged on the setting device 10. Via a spring means 49 of the switching strand 30 is at the attachment means 22 with the driver 37 in the direction of his Fig. 1 apparent unconfirmed position beaufschlagt in which the driver 37 does not press against the trigger element 13 of the setting device 10.
  • first part 21 a and the second part 21 b of the handle 21 may still be provided one or more extension parts, which can be used between the first part 21 a and the second part 21 b and each at one end a coupling element and on a have another counter-coupling element at the other end. Furthermore, there is then also in each case a further switching element of the switching string made displaceable.
  • the positioning device 20 furthermore has a safety device designated as a whole by 50 (cf. FIGS. 2 to 6 ), which prevents triggering of a positioning device 20 arranged on the setting device 10 via the actuator 24 in a direction other than the legal orientation.
  • This safety device 50 is formed between a component of the support structure, which is formed in the illustrated embodiment by the receptacle 36 facing away portion 46 of the coupling element 28, and a relative to this axially along the axis A displaceable switching element of the switching strand 30, in the embodiment by the second Switching member 34 is formed, arranged.
  • the safety device 50 has a recess 51 formed as a radially circumferential annular groove on the outside of the second switching element 34.
  • the recess 51 is open to the portion 46 and radially outwardly.
  • the recess 51 is bounded in the axial direction by groove walls 52 which extend obliquely with respect to the axis A, so that the axial width of the recess 51 decreases from radially outward to radially inward.
  • the safety device 50 also has a plurality of, in the illustrated example exactly three, channels 56 in the portion 46 of the coupling element 28 which are distributed rotationally symmetrically about the axis A around and related to a vertical axis A perpendicular intersecting plane E at an angle alpha are tilted from 20 ° to 50 ° (see, in particular Figures 2 . 4 and 6 ).
  • the channels 56 have a circular cross-section perpendicular to their longitudinal extent.
  • a radially outer end 58 of the channels 56 is open on the lateral surface of the coupling element 28 in the region of the portion 46, while a radially inner end 57 of the channels 56 is closed.
  • the channels 56 cut in the manner of a secant partially regional an axial projection of the switching element 34 and are open in these overlapping areas 59 to the second switching element 34.
  • the length L2 of the channels 56 from the radially outer end 58 to the overlap region 59 is in each case greater than the length L1 of the channels 56 from the inner end 57 to the overlap region 59 (see FIG Fig. 2 ).
  • the overlapping areas 59 of the channels 56 and the axial projection of the second switching element 34 also have to the axis A towards a depth T, which is smaller than the diameter D of the channels 56 (see in particular Fig. 3 ).
  • In each of the channels 56 each designed as an elongated, circular cylindrical pin locking element 55a, 55b, 55c is movably guided.
  • the length L1 of the channels 56 from the inner end 57 to the overlap region 59 is smaller than the length L3 of the pin-shaped blocking elements 55a, 55b, 55c (see FIG. Fig. 2 ). Further, the length L4 of the intersecting portions 59 in the longitudinal direction of the channels 56 is smaller than the length L3 of the pin-shaped blocking elements 55a, 55b, 55c.
  • the pin-shaped blocking element 55a is located radially outward in the channel 56 in its radially outer end 58 facing region and is thus not blocking effective in the overlap region 59 between the portion 46 and the second switching member 34.
  • the other locking elements 55b and 55c are in the radially outer end 58 facing areas of the channels 56 and thus are also not blocking effective.
  • the safety device 50 is in this orientation of the positioning device 20 in its triggering switching position.
  • the setting device 10 on the positioning device 20 can be pressed in this orientation with the mouth part 14 to a ceiling or other structural element and it can then be triggered by a displacement of the actuating element 24 to the coupling element 28 toward a setting process, since the locking elements 55a, 55b, 55c allow a relative movement of the second switching element 34 relative to the component of the support structure or to the portion 46 of the coupling element 28 due to its fully inserted into the first recess 51 position. How out Fig. 2 it can be seen, the second switching element 34 is thereby via the actuating element 24 and the first switching element 33 in the direction of the first arrow 15 relative to the coupling part 28th and its portion 46 offset (dashed second switching element 34).
  • the positioning device 20 is aligned with the safety device 50 with its longitudinal axis A, for example, at a right angle to the vector G of gravitational force.
  • one of the pin-shaped blocking elements 55a is at least partially blocking-effective in the overlapping region in the region of the channel 56 facing the radially inner end 57 and thus due to the ratios of the length L3 of the blocking element to the length L1 of the channel 56 from the inner end 57 to the overlapping region 59 59.
  • the safety device 50 is now in its locked position.
  • the positioning device 20 is aligned with the safety device 50 with its longitudinal axis A by way of example in the direction of the vector G of gravitational force.
  • all the pin-shaped blocking elements 55a, 55b, 55c are located in the region of the channels 56 facing the radially inner end 57 and thus due to the ratios of the lengths L3 of the pin-shaped blocking elements 55a, 55b, 55c to the lengths L1 from the inner ends 57 to the overlapping areas 59 at least partially Sperr capable in the overlapping areas 59.
  • the safety device 50 is therefore also in this orientation in its blocking position.
  • a construction variant of the channels 56 is indicated.
  • the channels 56 are there flared at their radially inner ends 57, whereby the central axes of the pin-shaped locking elements 55 a, 55 b, 55 c can be inclined to the central axis of the respective channel 56.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Jigs For Machine Tools (AREA)
  • Automatic Assembly (AREA)

Claims (8)

  1. Dispositif de positionnement à déclenchement indirect pour un appareil de scellement à guidage manuel (10) actionnable par l'intermédiaire d'un élément de déclenchement (13), comprenant pour l'appareil de scellement (10) un moyen de liaison (22) qui est disposé à une extrémité d'un moyen de manipulation en forme de barre (21), lequel définit un axe (A), et pour le déclenchement indirect d'un élément d'actionnement (24) du moyen de manipulation (21) par l'élément de déclenchement (13) étant prévue une ligne de commutation mécanique (30) avec au moins un organe de commutation (34) déplaçable suivant l'axe (A) par rapport à un élément structurel, et comprenant, pour verrouiller le déclenchement indirect selon l'orientation, un dispositif de sécurité (50) qui comporte un élément de blocage (55a, 55b, 55c) guidé de manière mobile dans un canal (56) de l'élément structurel, un évidement (51) ouvert vers l'élément structurel étant ménagé dans l'organe de commutation pour l'élément de blocage (55a, 55b, 55c), caractérisé en ce qu'il est prévu trois éléments de blocage (55a, 55b, 55c) guidés chacun dans un canal séparé (56), les canaux (56) étant inclinés par rapport à un plan (E) perpendiculaire à l'axe, et les canaux (56) coupant par endroits une projection axiale de l'organe de commutation (34) et étant ouverts dans les zones d'intersection (59) avec l'organe de commutation (34), et les canaux (56) s'étendant à la manière de sécantes par rapport à la projection axiale de l'organe de commutation (34).
  2. Dispositif de positionnement selon la revendication 1, caractérisé en ce que les canaux (56) sont répartis autour de l'axe (A) selon une symétrie de révolution.
  3. Dispositif de positionnement selon la revendication 1 ou 2, caractérisé en ce que les éléments de blocage (55a, 55b, 55c) sont conformés en broches.
  4. Dispositif de positionnement selon la revendication 1, caractérisé en ce que l'organe de commutation est conformé en tige et est guidé dans une portion cylindrique (46) de l'élément structurel conformé en élément d'accouplement.
  5. Dispositif de positionnement selon la revendication 1, caractérisé en ce que les canaux sont inclinés par rapport au plan (E) selon un angle (α) compris entre 20° et 50°.
  6. Dispositif de positionnement selon la revendication 1 ou 5, caractérisé en ce que les zones d'intersection (59) des canaux (56) avec la projection axiale de l'organe de commutation (34) présentent, en direction de l'axe (A), une profondeur (T) qui est inférieure au diamètre (D) des canaux (56).
  7. Dispositif de positionnement selon la revendication 1 ou 4, caractérisé en ce que l'évidement (51) est conformé en gorge annulaire périphérique fermée dans les deux directions axiales de l'organe de commutation.
  8. Dispositif de positionnement selon la revendication 1 ou 7, caractérisé en ce que les parois de gorge (52) délimitant l'évidement (51) dans la direction axiale s'étendent en biais par rapport à l'axe (A), de sorte que la largeur axiale de l'évidement (51) diminue du côté radialement extérieur vers le côté radialement intérieur.
EP08103884A 2007-06-01 2008-05-09 Dispositif de positionnement doté d'une commutation de déclenchement pour un appareil de pose manuel Active EP1997589B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007000303A DE102007000303A1 (de) 2007-06-01 2007-06-01 Positioniervorrichtung mit Auslösevermittlung für ein handgeführtes Setzgerät

Publications (2)

Publication Number Publication Date
EP1997589A1 EP1997589A1 (fr) 2008-12-03
EP1997589B1 true EP1997589B1 (fr) 2010-02-24

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EP08103884A Active EP1997589B1 (fr) 2007-06-01 2008-05-09 Dispositif de positionnement doté d'une commutation de déclenchement pour un appareil de pose manuel

Country Status (6)

Country Link
US (1) US7913888B2 (fr)
EP (1) EP1997589B1 (fr)
JP (1) JP5336771B2 (fr)
CN (1) CN101314218B (fr)
DE (2) DE102007000303A1 (fr)
ES (1) ES2340639T3 (fr)

Families Citing this family (5)

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US20090211403A1 (en) * 2008-02-27 2009-08-27 Powers Fasteners, Inc. Setting tool arrangement
US8397968B2 (en) * 2008-02-27 2013-03-19 Black & Decker Inc. Setting tool arrangement
US7896210B2 (en) * 2009-04-23 2011-03-01 Illinois Tool Works Inc. Fastener actuation system
US8915414B2 (en) 2012-02-10 2014-12-23 Illinois Tool Works Inc. Combustion fastener tool with lockout mechanism
US10926389B2 (en) * 2018-07-31 2021-02-23 Chung-Heng Lee Powder-actuated tool

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AU2003903682A0 (en) * 2003-07-16 2003-07-31 Cetram Pty Limited Explosively actuated tools
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Also Published As

Publication number Publication date
EP1997589A1 (fr) 2008-12-03
CN101314218B (zh) 2011-08-03
US7913888B2 (en) 2011-03-29
JP5336771B2 (ja) 2013-11-06
DE502008000391D1 (de) 2010-04-08
DE102007000303A1 (de) 2008-12-04
JP2008296364A (ja) 2008-12-11
US20080296338A1 (en) 2008-12-04
ES2340639T3 (es) 2010-06-07
CN101314218A (zh) 2008-12-03

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