EP1785232B1 - Dispositif de guidage des éléments de fixation pour les outils motorisés - Google Patents

Dispositif de guidage des éléments de fixation pour les outils motorisés Download PDF

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Publication number
EP1785232B1
EP1785232B1 EP06123020A EP06123020A EP1785232B1 EP 1785232 B1 EP1785232 B1 EP 1785232B1 EP 06123020 A EP06123020 A EP 06123020A EP 06123020 A EP06123020 A EP 06123020A EP 1785232 B1 EP1785232 B1 EP 1785232B1
Authority
EP
European Patent Office
Prior art keywords
component
transporting
control
guide
operating axis
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
EP06123020A
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German (de)
English (en)
Other versions
EP1785232A3 (fr
EP1785232A2 (fr
Inventor
Marco Zurkirchen
Marcel Kölliker
Sven Matthiesen
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
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Publication of EP1785232A2 publication Critical patent/EP1785232A2/fr
Publication of EP1785232A3 publication Critical patent/EP1785232A3/fr
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Publication of EP1785232B1 publication Critical patent/EP1785232B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/045—Arrangements for handling screws or nuts for feeding screws or nuts using disposable strips or discs carrying the screws or nuts

Definitions

  • the present invention relates to a fastener-feeding device for a power driven tacker referred to in the preamble of claim 1.
  • Fastener feeders for powered tackers such.
  • B. screwdrivers have to attach to a substrate on a head part, the leadership of fasteners such. As screws, before and during the driving operation.
  • This headboard can, for. B. be part of a fastener magazine or a fastener transport device, which can be placed on a flange of a tacker.
  • a screwdriver with screw feeder known in which a first assembly is arranged in the form of a holder on a housing flange of the screwdriver.
  • a second structural unit of the screw feed device in the form of a screw guide is arranged displaceably relative to the first structural unit and can be attached to a workpiece with its end lying in the working direction.
  • a turntable is mounted on which a ratchet is arranged.
  • the ratchet has an arm which protrudes from the hub and carries at its opposite end a fixing pin. This passes through a first arcuate gate opening of a gear block and extends through a slideway in the holder.
  • a disadvantage here is the arrangement of the slotted guide, which is arranged in an arc to the turntable and substantially transversely to a through the Screwdriver defined working axis extends, which has an unfavorable effect on the kinematics of the transport mechanism and forced jamming in case of contamination of the slide guide. Furthermore, here at the beginning of the Anpressweges a high, applied by the user, contact force for the screw transport necessary.
  • a device for screwing in screws in which a slider is slidably mounted in a housing.
  • a device for the stepwise transport of screws in a screw-in position is arranged.
  • the transport device has a rotatably mounted on the slider sprocket wheel with two sprouts and a clutch disc.
  • the clutch disc has lugs which engage in corresponding recesses in the lug plate and are held there under spring load.
  • a pin is further arranged which is guided both in a guide slot on the housing as well as in a slot in the slider.
  • the DE 42 19 095 C1 Proposes to simplify a feed device with sprocket wheel for a driving tool to store the sprocket wheel at one end of a first arm of a two-armed pivot lever, while the control pin is arranged on the second arm.
  • the two-armed pivot lever is mounted on a pivot bearing, which is arranged between the first and the second arm.
  • the pivot lever When pressing a stop of the slider to a workpiece, the pivot lever is pivoted by the positive guidance of the control pin in a clockwise direction and thereby takes the sprocket with.
  • the sprocket wheel is locked over a locking mechanism, so that it can not rotate but transported the screw strip.
  • the object of the present invention is to provide a fastener supply device for a power driven tackle device, which avoids the disadvantages mentioned, which is simple in construction and which enables a reliable transport of the screw strip.
  • the transport device includes a guide means displaceably guided on the second module slide element, on whose end portion facing the head part, the axis of rotation with the transport wheel and at the other end portion of the actuating member is mounted.
  • the slider element is preferably guided in a curved path.
  • the guide means of the transport device at least a first and a second guide curve on the second unit on which are formed as the first and second control pin guide means of the slide element, wherein the guide curves are spaced from each other in the direction of one, defined by the drive-in, working axis and wherein the guide curves each have an end which is closer to the working axis and an end which is further away from the working axis.
  • first control pin is formed coaxially with the actuator and the second control pin is concentric with the axis of rotation of the transport wheel.
  • first control pin is in an initial position of the transport preferably at the working axis near the end of the first guide curve, while the second control pin is in the starting position at the working axis far end of the second guide curve, whereby a defined starting position of the slide element is achieved.
  • the first guide curve has a curvature that is bent away from the working axis near the end away from the working axis away from the working axis
  • the second guide curve has a curvature, starting from the working axis far away End is bent to the work axis near end to the working axis.
  • the transport wheel on two spaced apart along the axis of rotation sprocket wheels, both of which each have a separate ratchet mechanism.
  • the sprocket wheels are separately controlled.
  • the first sprocket wheel associated with a return means, wherein the first ratchet mechanism between the return means and the first Sprossenrad is formed and wherein the return means is controlled by control means on the transport means to allow unrolling of the transport wheel on the magazine strip only in the return direction of the transport device.
  • the control means comprise at least one control link on the second unit and at least one arranged on a control plate control member which runs in the control link.
  • the spring means of the first ratchet mechanism are fixed to the control plate.
  • FIGS. 1 to 6 show a generally designated 10 fastener supply means according to the invention with a coupling portion 14 on a flange 81 of a FIG. 1 only indicated, power operated hand-held tacker 80 is releasably fixed.
  • the reproduced tacker 80 is designed as an electrically operated screwdriver.
  • the fastener supply device 10 is designed as a screw magazine with integrated transport device 30 for the transport of a magazine strip 50.
  • the fastener-feeding device 10 designed as a screw driving tool 15 is guided in a drive-in channel 12, which is mosbetätigtbar on the power driven tacker 80.
  • a Fixing means 51 are moved in the drive-in channel 12 in front of the driving tool 15, so that this fastening means 51 can be subsequently driven via the driving tool 15 into the ground U.
  • the drive-in channel 12 defines a working axis A of the fastener-supply device 10.
  • the fastener-feeding device 10 has a first assembly 11, which includes the coupling portion 14 and which is formed here as a guide housing, and a second assembly 21 which is slidably supported on the first unit 11 and against the first unit 11 via an elastic Restoring element 17 is supported, on.
  • the second unit 21 is designed as a sliding carriage and has guide portions 23 which are guided axially displaceably in guides 13 on the first unit 11.
  • the second structural unit 21 also carries the transport device 30 and guides the magazine strip 50 with the fastening means 51 in a strip guide 20.
  • the second structural unit 21 has a head part 22 which can be attached to a base U with an end face 24.
  • the head part 22 is at a distance from a carrier 29, which has two lateral support elements 25 between which a slide member 31 of the transport device 30 is slidably mounted, as in particular from Fig. 3 is apparent.
  • the distance of the head portion 22 to the support 29 is adjustable via a mechanism, not shown in the figures, to use fasteners 51 of different lengths can.
  • the slider element 31 of the transport device 30 has a curved or curved shape and carries at a first end or end portion 38 which faces the coupling portion 14, two first control pins 36.
  • These first control pins 36 are in a receptacle 47th slidably mounted, where they are supported against each other elastically via a spring element 42.
  • the first control pins 36 respectively pass through first guide curves 26, in which they are displaceably guided.
  • the control pins 36 form at their ends remote from the receptacle 47 in each case an actuating member 35, which each engage in a guide cam 16 on the first unit 11 and are guided there displaceably.
  • a transport wheel 32 is mounted on a rotation axis D, which is guided in a bearing bush 49.
  • second control pins 37 are formed, which are guided in each case in second guide curves 27 of the carrier 29 to the second unit 21 slidably.
  • the first guide curve 26 has a curvature which, starting from an end 61 near the working axis A, which faces away from the head part 22, is bent away from the working axis A to an end 62 remote from the working axis A, which faces the head part 22 is, while the second guide curve 27 has a curvature, starting from a working axis A far end 71, which faces away from the head part 22, to a working axis A near end 72, which faces the head part 22, to the working axis A out bent (see in particular Figures 2 . 4 . 5 and 6 ).
  • This special arrangement of the guide curves 26, 27 reliably prevents tilting of the slide element 31 guided via the guide curves 26, 27 and the control pins 36, 37.
  • Each transport wheel 32 includes a first sprocket wheel 33 and a second sprocket wheel 34 and a return means 40 cooperating with the first sprocket wheel 33.
  • Each of the two sprocket wheels 33, 34 is associated with a respective ratchet mechanism 43, 44 which respectively includes a spring means 45, 46.
  • At the sprocket wheels 33, 34 arranged rungs 53 engage in a strip guide 20 located on the second unit 21 magazine strip 50 in there provided transport openings.
  • the return means 40 has a control plate 41, on which a control member 48 is formed in the form of a pin. This control member 48 engages in a control link 28 of a carrier element 29 of the carrier 25 of the second unit 21 (see. FIGS. 2 to 6 ).
  • the first control pins 36 abut against the first ends 61 of the first guide curves 26, while the second control pins 37 rest against the first ends 71 of the second guide curves 27.
  • the transport wheel 32 engages with its rungs 53 in the transport openings on the magazine strip 50 in the strip guide 20.
  • the second unit 21 is moved into the first unit 11 in the direction of the arrow 82. Due to this movement, the actuators 35 in the first portions 18 of the control tracks 16 move in a direction away from the working axis A. The control pins 36 associated with the actuators 35 are thereby moved in the direction of the arrow 83 towards the second end 62 of the first control cam 26 and the rear first End portion 38 of the slider element 31 so that moves away from the working axis A.
  • the front second end portion 39 of the slide member 31 is separately controlled via the second control pin 37 in the second guide curves 27 and moved over this in the direction of the arrow 84 in the direction of the working axis A, with the second control pin 37 toward the second end 72 of the second guide curves 27 move back.
  • the transport wheel 32 with the two sprocket wheels 33, 34 is also moved in the direction of the arrow 84 to the working axis A through this movement.
  • the second sprocket wheel 34 is locked via the second ratchet mechanism 44 and its spring means 46, so that the magazine strip 50 is transported via the then rotationally fixed transport wheel 32 in the direction of the arrow 52.
  • the magazine strip 50 has already been moved by the transport device 30 by a complete switching step, so that a fastening means 51 has been moved into the drive-in channel 12 and then driven into the substrate U via the drive-in tool 15.
  • the slider element 31 with the transport wheel 32 has been moved in the manner described above until the first and second control pins 36, 37 respectively at the second ends 62, 72 of the guide curves 26, 27 arrived.
  • the actuators 35 continued to run after reaching the end position of the slide member 31 in the second portions 19 of the cams 16, which extend in the direction of the working axis A.
  • the second unit 21 is pushed back out of the first unit 11 under the force of the return element 17, wherein the actuators 35 first in the second sections 19 of the cam 16 run.
  • the actuators 35 run in the first sections 18 of the control cam 16, and the first and second control pins 36, 37 in the first and second guide curves 26, 27 against the direction of arrows 83, 84 again from the second ends 62, 72 of first and second guide curves 26, 27 to the first ends 61, 71 moves towards.
  • the slider element 31 with the transport wheel 32 is thereby moved in corresponding directions. During this return movement, the transport wheel 32 actively rolls on the magazine strip 50.
  • the unwinding is controlled by the return means 40, the control member 48 is guided in the control link 28.
  • the control plate 41 of the return means 40 is locked during the return movement of the slide member 31 via the first ratchet mechanism 43 and its spring means 45 to the first sprocket wheel 33.
  • the second sprocket wheel 34 thereby rotates and ratchets over a position.
  • the transport device 30 and the fastener supply device 10 are now back in their original position. Due to the active rolling of the transport wheel 32 on the magazine strip 50, it does not need to be additionally fixed in position by means of a latching device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Specific Conveyance Elements (AREA)
  • Slide Fasteners (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Claims (7)

  1. Dispositif d'amenée de moyens de fixation (10) pour un appareil d'enfoncement à entraînement motorisé (80), comprenant une première unité structurelle (11) qui peut être reliée à l'appareil d'enfoncement et comprenant une seconde unité structurelle (21) qui est montée à coulissement sur la première unité structurelle (11), la seconde unité structurelle (21) comportant une partie de tête (22) applicable contre un support (U) et un dispositif de transport (30) par l'intermédiaire duquel des moyens de fixation (51) disposés sur une bande formant magasin (50) peuvent être amenés à un canal d'enfoncement (12), le dispositif de transport (30) comportant, pour la bande formant magasin (50), une roue de transport (32) montée sur un axe de rotation (D) et au moins un organe d'actionnement (35) qui est guidé dans une piste de commande (16) de la première unité structurelle (11) et par l'intermédiaire duquel un déplacement relatif entre la première unité structurelle (11) et la seconde unité structurelle (21) peut être exploité par le dispositif de transport (30) pour réaliser un mouvement de transport de la roue de transport (32), caractérisé en ce que le dispositif de transport (30) comporte un élément coulissant (31) qui est guidé à coulissement sur la seconde unité structurelle (21) par l'intermédiaire de moyens de guidage (26, 27) et dont la zone extrême tournée vers la partie de tête (22) reçoit l'axe de rotation (D) avec la roue de transport (32) et dont l'autre zone extrême (38) reçoit l'organe d'actionnement (35).
  2. Dispositif d'amenée de moyens de fixation selon la revendication 1, caractérisé en ce que les moyens de guidage du dispositif de transport (30) comportent, sur la seconde unité structurelle (21), au moins une première et une seconde came (26, 27) sur lesquelles sont guidés des moyens de guidage de l'élément coulissant (31) conformés en premier et second tourillon de commande (36, 37), les cames (26, 27) étant distantes l'une de l'autre dans la direction d'un axe de travail (A) défini par le canal d'enfoncement (12), et les cames (26, 27) comportant chacune une extrémité (61, 72) qui est plus proche de l'axe de travail (A) et une extrémité (62, 71) qui est plus éloignée de l'axe de travail (A).
  3. Dispositif d'amenée de moyens de fixation selon la revendication 1 ou 2, caractérisé en ce que le premier tourillon de commande (36) est conçu de manière coaxiale à l'organe d'actionnement (35), et le second tourillon de commande (37) est concentrique à l'axe de rotation (D) de la roue de transport (32).
  4. Dispositif d'amenée de moyens de fixation selon une des revendications 1 à 3, caractérisé en ce que la première came (26) présente une courbure qui, en partant de l'extrémité (61) proche de l'axe de travail (A) et en arrivant à l'extrémité (62) éloignée de l'axe de travail (A), s'éloigne de l'axe de travail (A), tandis que la seconde came (27) présente une courbure qui, en partant de l'extrémité (71) éloignée de l'axe de travail (A) et en arrivant à l'extrémité (72) proche de l'axe de travail (A), se rapproche de l'axe de travail (A).
  5. Dispositif d'amenée de moyens de fixation selon une des revendications 1 à 4, caractérisé en ce que la roue de transport (32) comporte deux roues à picots (33, 34) qui sont distantes l'une de l'autre le long de l'axe de rotation (D) et qui comportent toutes deux un mécanisme à cliquet (43, 44).
  6. Dispositif d'amenée de moyens de fixation selon la revendication 5, caractérisé en ce qu'à la première roue à picots (33) est associé un moyen de retour (40), le premier mécanisme à cliquet (43) étant disposé entre le moyen de retour (40) et la première roue à picots (33), et le moyen de retour (40) étant commandé par l'intermédiaire d'un moyen de commande disposé sur le dispositif de transport (30) afin de ne permettre à la roue de transport (32) de ne rouler sur la bande formant magasin (50) que dans le sens de rappel du dispositif de transport (30).
  7. Dispositif d'amenée de moyens de fixation selon la revendication 6, caractérisé en ce que le moyen de commande comporte au moins une coulisse de commande (28) sur la seconde unité structurelle (21) et au moins un organe de commande (48) qui est disposé sur une plaque de commande (47) et qui se déplace dans la coulisse de commande (28), des moyens élastiques (45) du premier mécanisme à cliquet (43) étant fixés à la plaque de commande (41).
EP06123020A 2005-11-09 2006-10-26 Dispositif de guidage des éléments de fixation pour les outils motorisés Active EP1785232B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005000150A DE102005000150A1 (de) 2005-11-09 2005-11-09 Befestigungsmittel-Zuführeinrichtung für kraftbetriebene Eintreibgeräte

Publications (3)

Publication Number Publication Date
EP1785232A2 EP1785232A2 (fr) 2007-05-16
EP1785232A3 EP1785232A3 (fr) 2009-04-15
EP1785232B1 true EP1785232B1 (fr) 2010-06-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06123020A Active EP1785232B1 (fr) 2005-11-09 2006-10-26 Dispositif de guidage des éléments de fixation pour les outils motorisés

Country Status (6)

Country Link
US (1) US7950312B2 (fr)
EP (1) EP1785232B1 (fr)
JP (1) JP5064760B2 (fr)
KR (2) KR101486793B1 (fr)
DE (2) DE102005000150A1 (fr)
ES (1) ES2345897T3 (fr)

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DE20309492U1 (de) * 2003-06-20 2003-10-02 Techway Ind Co Ltd Schraubmaschine
JP4553668B2 (ja) * 2004-09-16 2010-09-29 株式会社ムロコーポレーション 連続ビス締付機
TWI311094B (en) * 2005-02-25 2009-06-21 Duraspin Products Ll Portable screw driving tool with collapsible front end

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ES2345897T3 (es) 2010-10-05
DE102005000150A1 (de) 2007-05-10
KR20070049967A (ko) 2007-05-14
KR20140009086A (ko) 2014-01-22
JP5064760B2 (ja) 2012-10-31
EP1785232A3 (fr) 2009-04-15
KR101486793B1 (ko) 2015-01-28
DE502006007216D1 (de) 2010-07-29
US7950312B2 (en) 2011-05-31
EP1785232A2 (fr) 2007-05-16
JP2007130754A (ja) 2007-05-31
US20070102440A1 (en) 2007-05-10

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