EP1927436A1 - Dispositif d'enfoncement manuel - Google Patents

Dispositif d'enfoncement manuel Download PDF

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Publication number
EP1927436A1
EP1927436A1 EP07021882A EP07021882A EP1927436A1 EP 1927436 A1 EP1927436 A1 EP 1927436A1 EP 07021882 A EP07021882 A EP 07021882A EP 07021882 A EP07021882 A EP 07021882A EP 1927436 A1 EP1927436 A1 EP 1927436A1
Authority
EP
European Patent Office
Prior art keywords
drive
locking device
switching means
tacker
spring element
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
EP07021882A
Other languages
German (de)
English (en)
Other versions
EP1927436B1 (fr
Inventor
Ulrich Schiestl
Robert Spasov
Matthias Blessing
Hans Gschwend
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 EP1927436A1 publication Critical patent/EP1927436A1/fr
Application granted granted Critical
Publication of EP1927436B1 publication Critical patent/EP1927436B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the present invention relates to a hand-held tacker of the type mentioned in the preamble of claim 1.
  • Such hand-held tackers have a displaceably guided Eintreibstössel about the fasteners are driven into a ground.
  • the tackers are z. B. electrically operated, being used as energy storage for the drive ram a drive spring which can be tensioned via an electrically operated clamping mechanism.
  • a generic designed as an electric stapler tacking device is from the DE 32 37 087 A1 known.
  • Eintreibrace designed as a firing pin drive ram is moved by a rotating electric motor against a drive spring in a clamping position, wherein a gear connection between the driving ram and the electric motor is designed so that the driving ram is decoupled in the clamping position.
  • this clamping position of the driving ram can be locked by a locking member.
  • a trigger switch such as a release lever or a push button must be actuated, over which the locking member is released from its locked position on the drive ram.
  • the retractable with the electrotacker fasteners can be stored in a magazine.
  • Drive-in devices such as electric tacker, usually have only very low drive-in energies of about 5 to 10 J. If such tackers are to be designed to achieve higher drive-in energies of up to 80 J, then a corresponding adjustment or scaling of the drive spring is required, whereby the risk of fatigue during prolonged storage in the tensioned state is still increased.
  • the object of the present invention is to develop a tacker of the aforementioned type, which avoids the aforementioned disadvantages.
  • At least one further switching means for the locking device is provided, via which the locking device can be transferred independently of the release switch in the release position.
  • the at least one further switching means is an electrical switching means, via which the electrically switchable blocking device can be controlled.
  • the control of the locking device can be done directly or indirectly via other electronic components or components.
  • the electronic control ensures error-free and fast transmission of a switching command.
  • the at least one further switching means may be a time switching means which activates the blocking device in a time-controlled manner.
  • the tacker can be automatically transferred to a relaxed state of the drive spring element for non-operation for a period of time exceeding a preset length of time.
  • the time switching means is an analog electronic timer, which can be linked to the control electronics of the tacker in a technically simple manner or which is part of an electronic control unit of the tacker.
  • the time switching means is a digital electronic timer which can also be linked in a technically simple manner with the control electronics of the tacker.
  • the digital timer can be z.
  • the at least one further switching means may be a main switch, via which the tacking device can be switched on and off, so that when the tacking device is switched off via this main switch, the drive spring element is automatically transferred to the relaxed position by actuation of the blocking device.
  • This main switch can be provided alternatively or in addition to a time switching means.
  • the main switch can also be connected via the power supply, d. H. be operated by a battery or a battery when they are removed from the battery holder out.
  • a main switch in the sense of the invention a battery or a battery is considered in addition to a physically existing switch or sensor, which open when they are removed from the recording a circuit.
  • the clamping device is switchable as a braking means for the driving ram, wherein the connection of the clamping device as a braking means preferably in response to a switching signal of the further switching means, such. B. the time switching means or the main switch.
  • the drive spring element can be braked relaxed, so that the energy stored in the drive spring element energy can be reduced in a controlled manner. This ensures that the energy reduction does not adversely affect the life of the equipment parts.
  • a pressure switch is provided, wherein the locking device via the further switching means can only be converted into the release position when the pressure switch is in an unactuated starting position. This avoids that the drive spring element is relaxed while working with the device, which could otherwise lead to malfunction.
  • the at least one further switching means is a contact pressure switch, via which the electrically switchable blocking device can be controlled.
  • the control can be done directly or via a control unit.
  • the locking device is then transferred when lifting the setting device back to its release position.
  • driving device 10 is electrically operated and has a housing 11 and disposed therein, generally designated 30 drive arrangement for a drive-in ram 13 which is displaceably guided in a guide 12.
  • a fastener magazine 61 At the lying in the driving direction 27 end of the guide 12 is a coaxial with this extending mouth part 15 closes with Eintreibkanal 16 and lying therein receiving space 17 for the fasteners 60 at.
  • a fastener magazine 61 At the side of the mouth part 15 projecting a fastener magazine 61 is arranged, which has a guide channel 62 which extends along a guide axis F and in the held on a carrier strip 65 fasteners 60 are stored.
  • the guide channel 62 opens into the receiving space 17.
  • the carrier strip 65 with the fastening means 60 is acted upon by a transport slide 63, which in turn is acted upon elastically via a transport spring element 64, in the direction of the receiving space 17.
  • the drive arrangement 30 includes a drive spring element 31 which is supported at one end at a support point 32 indirectly on the housing 11 and which engages with another end on the drive tappet 13.
  • Fig. 1 is the tacker 10 to a workpiece U, such. B. a construction element, pressed.
  • the drive tappet 13 is located in Fig. 1 in a eintreibren position in which it is resiliently biased against the, located in its clamping position 33 drive spring means 31.
  • this eintreibre position of the driving ram 13 has been transferred by pressing the tacker 10 to the workpiece U, whereby a clamping device 70 described in more detail below was triggered.
  • a generally designated 50 locking device having a pawl 51 which in a locking position 54 (see Fig. 1 ) engages a locking surface 53 on a projection 58 of the drive-in ram 13 and holds it against the force of the drive spring means 31.
  • the pawl 51 is mounted on a servomotor 52 and about this in a in Fig. 2 illustrated release position 55 can be transferred.
  • the servomotor 52 is connected via an electrical first control line 56 to a control unit 23.
  • the tacker 10 further includes a handle 20 on which a trigger switch 19 is arranged to trigger a driving operation with the tacker 10.
  • a handle 20 on which a trigger switch 19 is arranged to trigger a driving operation with the tacker 10.
  • the handle 20 is also still a total designated 21 power supply arranged, via which the tacker 10 is supplied with electrical energy.
  • the power supply 21 includes at least one accumulator.
  • the power supply 21 is connected via electrical supply lines 24 both to the control unit 23 and to the trigger switch 19.
  • the control unit 23 is also still connected via a switch line 57 to the trigger switch 19 and a main switch line 79 with a main switch 59b for switching on and off of the tacker 10.
  • a time switching means 59a Integrated into the control unit 23 is a time switching means 59a, which in the present case is designed as an analog timer and which is designed to switch a locking device 50 which will be described in more detail below.
  • a time switching means 59a As an analog timer while a circuit is called the z. B. controlled by a capacitor after a certain period of time, which begins at a certain time, outputs an electrical switching command.
  • the timing means 59a could also be designed as a digital timer, z. B. when the control unit 23 is formed as a microprocessor or at least includes such.
  • the digital timer may in this case be a program which is processed in the microprocessor.
  • a safety device 25 is arranged, via which an electrical pressure switch 29 of the safety device 25 is actuated, which is electrically connected via a switching means 28 to the control unit 23.
  • the electrical pressure switch 29 sends an electrical signal to the control unit 23 as soon as the tacker 10 is pressed with a mouth 18 of the mouth part 15 to a workpiece U, as from Fig. 1 can be seen, and so ensures that the tacker 10 can only be triggered when it has been properly pressed against a workpiece U.
  • the contact pressure element 14 is displaceable along an axis A defined by the drive-in channel 13 and between an initial position 36 (see FIG Fig. 2 ) and a pressing position 37 (see Fig. 1 ) displaceable.
  • the pressing member 14 is acted upon by a spring element 22 in the direction of its initial position 36 elastically.
  • This tensioning device 70 comprises an electrically driven motor 71 via which a drive roller 72 can be driven.
  • the motor 71 is electrically connected to the control unit 23 via a second control line 74 and can be put into operation via this be, for. B. when a contact pressure of the contact pressure switch 29 is actuated via the pressing element 41 formed as Anpresspliler 41 or already after completion of the driving operation when the tacker 10 is lifted again from a workpiece U.
  • the motor 71 has a driven gear 75, which can be coupled to the drive roller 72.
  • the drive roller 72 is rotatably mounted on a longitudinally adjustable actuating arm 78 of a solenoid 76 designed as a solenoid.
  • the adjusting means 76 is connected via an actuating line 77 to the control unit 23 and is moved up for a clamping operation with the drive roller to the drive ram 13, wherein the output gear 75 of the motor drives the drive roller 72 then.
  • the drive roller 72 rotates in the direction of the first arrow 73 to drive the drive-in ram 13 against the drive spring element 31 and this in the off Fig. 1 apparent tension position 33 to convict.
  • the pawl 51 of the locking device 50 falls into the blocking surface 53 on the drive tappet 13 and holds it in the starting position.
  • the motor 71 can then be switched off via the control unit 23 and the actuating means 76 drives the drive roller 72 also controlled by the control unit 23 from its engaged position on the output means 75 and the driving ram 13 in its disengaged position (not shown in the figures).
  • the control unit 23 is first set in readiness for setting via the contact pressure element 14 and the electrical contact pressure switch 29. If the trigger switch 19 is then actuated by an operator, the blocking device 50 is moved into its release position 55 (in FIG Fig. 2 dashed lines shown), wherein the pawl 51 is lifted by the servomotor 52 by pivoting in the direction of the second arrow 80 of the blocking surface 53 on the drive tappet 13.
  • the drive-in ram 13 is then moved via the drive spring element 31 of the drive arrangement 30 in the drive-in direction 27, wherein a fastening element 60 is driven into the workpiece U (not shown in the figures).
  • the clamping device 70 via the Control unit 23 activated.
  • the electrical contact pressure switch 29 supplies a signal to the control unit 23 via the tensioning device 70 is the drive-in ram 13 in the already described manner driven against the drive spring element 31 of the drive assembly 30 and the drive spring member 31 while tensioned again until the pawl 51 can again come into its blocking position 54 on the locking surface 53 on the drive tappet 13.
  • this z. B. be acted upon elastically in the direction of their blocking position.
  • a total of 40 designated adjusting device for the transport slider 63 is present, which is controlled by the contact pressure element 14 and the pressure switch 29 of the safety device 25.
  • this adjusting device 40 described in more detail below, by displacing the transport slide 63 and the carrier strip 65 with the fastening elements 60 against the force of the transport spring element 64 when the tacker is lifted off a workpiece U (cf. Fig. 2 ) a possibly located in the receiving space 17 of the drive-in channel 16 fastener from the receiving space 17 are moved back into the guide channel 62.
  • the adjusting device 40 has traction means, which include a rope or band-shaped tension element 48 and a drive means 49 for the tension element 48.
  • the drive means 49 is z. B. formed as an electric motor 94 on the output shaft, a winding spool 95 is arranged for the tension element 48.
  • the winding coil 95 facing away from the end of the tension element 48 is fixed to the transport slide 62.
  • deflection rollers 96 are also provided for guiding the tension element 48 from the transport slide 62 to the winding spool.
  • the electric motor 94 is controlled with the interposition of the control unit 23 via the contact pressure element 14, or the contact pressure switch 29 connected thereto, for which purpose control lines are provided which are not illustrated in the figures.
  • the pressing element 14 and the pressure switch 29 can also form a functional unit.
  • the pressing element 14 is located in Fig. 1 in its Anpress ein 37, in which the pressure switch 29 is actuated via this.
  • the adjusting device 40 is not active in this Anpress ein 36 of the pressing member 14 and is in its neutral position 39.
  • a fastener 60 a was transported into the receiving space 17 of the drive-in channel 16 and is held there. A drive-in process is possible.
  • Fig. 2 the tacker 10 was lifted from the workpiece U, without previously a driving operation has been triggered.
  • the pressing member 14 and with this the Pressing switch 29 were transferred to their initial position 36.
  • the adjusting device 40 was thereby mediated activated by the control device 23 and transferred to its Beauftschungswolf 38, wherein the electric motor 94, the winding spool 95 rotates in the direction of the third arrow 97.
  • the tension member 48 is thereby wound by a certain length on the reel spool 95 and thereby moves the transport slider 63 in the direction of the fourth arrow 98 against the force of the transport spring member 64, wherein the carrier strip 62 is mitversetz the transport slide 62 and the previously located in the receiving space 17 Fastener 60a is moved out of this.
  • the tension element 48 z. B. are held by a locking device, not shown in the figures, which locks the winding spool 95, and can be overcome only by an angular momentum of the electric motor 94 in one of the two possible directions of rotation.
  • the adjusting device 40 holds the driving channel 16 so free.
  • the blocking device 50 is actuated via the time switching means 59a formed switching means and transferred to its release position 55, so that the projection 58 is released and the driving pin 13 in its initial position and the drive spring element 31st can be transferred into its relaxation position 34 (as out Fig. 2 visible).
  • a fastener 60 is not ejected, since the transport slide 63 previously moved over the actuator 40 against the transport direction and the drive-in channel 16 and the receiving space 17 has been emptied.
  • the time switching means 59a can also activate the adjusting means 76, so that even before transferring the locking device 50 into the release position 55, the drive wheel 72 is moved to the driving ram 13 and the output gear 75 and coupled thereto.
  • the motor 71 then acts after releasing the pawl 51 as a braking means for moving in the setting direction 27 Eintreibstössel 13.
  • the control unit 23 and the authoritative electrical components and components of the tacker 10 recovered electrical energy and the z. B. be designed as a battery power supply 21, which stores them.
  • the motor 71 then acts not only as a braking means but also as a generator.
  • the locking device 50 can only be transferred via the time switching means 59b in the release position when the pressure switch 29 is in its initial position 36.
  • the adjusting means 76 is adjusted to the drive wheel 72 via the control unit 23, acting as a further switching means for the locking device 50, and the blocking device 50 is transferred to its release position 55.
  • the drive spring element 31 can be transferred into its release position 34, as previously described.
  • the main switch 59b z. B. also be arranged on the receptacle for the power supply 21 nor designed as an electrical or mechanical sensor main switch (not shown in the figures), which also acts as another switching means for the locking device 50 and detects when the power supply 21 and Battery is removed from the recording.
  • a battery or a battery is considered, which open when they are removed from the recording a circuit.
  • the relaxation of the drive spring element 31 is then triggered immediately and carried out in the electrical system or in the control unit 23 residual energy.
  • the pressing switch 29 (or an additional pressing switch) could act as a switching means for the locking device 50, which transfers the locking device 50 into its release position 55 when the tacking device 10 is again lifted off a workpiece U.
  • the adjusting device 40 could alternatively also have instead of a tension element a counter-slide for the transport slide 63, the z. B. is mechanically coupled via a link gear with the trained as Anpressiqueler 41 contact pressure element 14. A movement of the pressing element 14 along the axis A could be translated into a movement of the counter-slide along the guide axis F defined by the guide channel 62, over which the transport slide 63 could be displaced against the force of the transport spring element 64.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP07021882.1A 2006-11-27 2007-11-12 Dispositif d'enfoncement manuel Active EP1927436B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006035460A DE102006035460A1 (de) 2006-11-27 2006-11-27 Handgeführtes Eintreibgerät

Publications (2)

Publication Number Publication Date
EP1927436A1 true EP1927436A1 (fr) 2008-06-04
EP1927436B1 EP1927436B1 (fr) 2016-11-02

Family

ID=39263204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021882.1A Active EP1927436B1 (fr) 2006-11-27 2007-11-12 Dispositif d'enfoncement manuel

Country Status (6)

Country Link
US (1) US7694863B2 (fr)
EP (1) EP1927436B1 (fr)
JP (1) JP5139782B2 (fr)
CN (1) CN101190520B (fr)
AU (1) AU2007237210B2 (fr)
DE (1) DE102006035460A1 (fr)

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DE102010030119A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Eintreibvorrichtung
DE102010030057A1 (de) 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Elektrisch betätigbares Bolzensetzgerät
DE102010030825A1 (de) 2010-07-01 2012-01-05 Hilti Aktiengesellschaft Handwerkzeuggerät
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DE102011007703A1 (de) * 2011-04-19 2012-10-25 Hilti Aktiengesellschaft Eintreibgerät
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US11229995B2 (en) 2012-05-31 2022-01-25 Black Decker Inc. Fastening tool nail stop
DE102012216189A1 (de) 2012-09-12 2014-03-13 Hilti Aktiengesellschaft Handgeführtes Arbeitsgerät
DE102012223007A1 (de) 2012-12-13 2014-06-18 Hilti Aktiengesellschaft Handgeführtes oder halbstationäres Werkzeuggerät und Verfahren zum Betreiben eines derartigen Werkzeuggeräts
KR102151291B1 (ko) * 2012-12-21 2020-09-02 아틀라스 콥코 인더스트리얼 테크니크 에이비 가압 개시 기능을 가진 임펄스 렌치
US20140263535A1 (en) 2013-03-12 2014-09-18 Techtronic Power Tools Technology Limited Direct current fastening device and related control methods
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EP2801449A1 (fr) 2013-05-06 2014-11-12 HILTI Aktiengesellschaft Dispositif d'entraînement et procédé d'utilisation d'un dispositif d'enfoncement
US10434634B2 (en) 2013-10-09 2019-10-08 Black & Decker, Inc. Nailer driver blade stop
EP2868437A1 (fr) 2013-10-29 2015-05-06 HILTI Aktiengesellschaft Appareil outil ou appareil de travail manuel ou semi-stationnaire
US9643306B2 (en) 2014-04-15 2017-05-09 Illinois Tool Works Inc. Fastener-driving tool including a driving device
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WO2016127101A1 (fr) 2015-02-06 2016-08-11 Milwaukee Electric Tool Corporation Dispositif d'entraînement de fixation alimenté par ressort à gaz
WO2016160699A1 (fr) * 2015-03-30 2016-10-06 Senco Brands, Inc. Mécanisme de levage pour cloueuse de charpente
US10159471B2 (en) 2015-05-13 2018-12-25 C.R. Bard, Inc. Actuation lockout for a surgical instrument
JP6690710B2 (ja) * 2016-06-30 2020-04-28 工機ホールディングス株式会社 打込機
JP7144927B2 (ja) * 2017-10-23 2022-09-30 株式会社マキタ 回転工具
US11130221B2 (en) 2019-01-31 2021-09-28 Milwaukee Electric Tool Corporation Powered fastener driver

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Publication number Priority date Publication date Assignee Title
US1845617A (en) * 1929-05-02 1932-02-16 Latham Machinery Co Stapling machine
DE3237087A1 (de) * 1982-10-07 1984-04-12 Byrne, Rodger J., 4005 Meerbusch Elektrotacker
DE102005000062A1 (de) * 2005-05-18 2006-11-23 Hilti Ag Elektrisch betriebenes Eintreibgerät
WO2007142997A2 (fr) * 2006-05-31 2007-12-13 Stanley Fastening Systems, L.P. Moyen d'entraînement d'éléments de fixation

Also Published As

Publication number Publication date
AU2007237210A1 (en) 2008-06-12
CN101190520B (zh) 2011-12-14
DE102006035460A1 (de) 2008-05-29
AU2007237210B2 (en) 2010-06-24
EP1927436B1 (fr) 2016-11-02
US7694863B2 (en) 2010-04-13
CN101190520A (zh) 2008-06-04
JP5139782B2 (ja) 2013-02-06
JP2008132590A (ja) 2008-06-12
US20080121404A1 (en) 2008-05-29

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