EP2888080B1 - Hand-held tool - Google Patents

Hand-held tool Download PDF

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Publication number
EP2888080B1
EP2888080B1 EP13753165.3A EP13753165A EP2888080B1 EP 2888080 B1 EP2888080 B1 EP 2888080B1 EP 13753165 A EP13753165 A EP 13753165A EP 2888080 B1 EP2888080 B1 EP 2888080B1
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EP
European Patent Office
Prior art keywords
hand
triggering
held tool
triggering device
blocking
Prior art date
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EP13753165.3A
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German (de)
French (fr)
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EP2888080A2 (en
Inventor
Iwan Wolf
Harald Fielitz
Klaus Bertsch
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Hilti AG
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Hilti AG
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Publication of EP2888080A2 publication Critical patent/EP2888080A2/en
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    • 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
    • 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 invention relates to a hand-held implement for driving fasteners into a subsurface, with a triggering device, the actuation of which triggers a driving-in process and which can be blocked depending on at least one device state.
  • the EP 736 360 A2 describes a trigger device with a trigger switch, a contact switch, an electromagnetic valve and a control unit.
  • the control unit allows the electromagnetic valve to be energized only during a predetermined time interval after a trigger signal from the trigger switch when the trigger switch and the contact switch are closed.
  • the object of the invention is to further simplify or improve the operation of a hand-held implement for driving fasteners into a subsurface.
  • the task is in a hand-held implement for driving fasteners into a surface, with a release device, the actuation triggers a driving-in process and which can be blocked depending on at least one device state, in that the triggering device is assigned an electrically actuable, mechanical locking device with which the actuation of the triggering device can be blocked or released.
  • the trigger device preferably comprises a trigger switch, which is also referred to as a trigger.
  • the triggering device is preferably designed as a lifting magnet, particularly preferably as an electromagnet, and can be actuated electrically via a device-internal control.
  • the release device can be blocked and released quickly and safely by the lifting magnet.
  • the hand-held implement is preferably designed as a bolt-driving tool.
  • the stud setting tool can be operated electrically, pneumatically or with a fuel.
  • the bolt-setting tool advantageously comprises a spring device, which serves as an intermediate store in order to store energy in the bolt-setting tool from an electric drive, which energy can be released suddenly during a setting process.
  • the transmission element has a recess, the position of which can be changed relative to the triggering device by the locking device. As a result, the triggering device can be blocked or released in a simple manner.
  • the recess is positioned in a receiving position in relation to the triggering device such that an actuator of the triggering device engages in the recess when it is actuated without triggering a movement of the transmission element.
  • the transmission element can advantageously be biased into its receiving position.
  • the recess In a release position, the recess is positioned in relation to the release device such that the actuator of the release device triggers a movement of the transmission element when it is actuated. In the release position, the actuator of the release device does not engage in the recess on the transmission element.
  • a preferred exemplary embodiment of the hand-held implement is characterized in that the locking device comprises a plunger which acts mechanically on a trigger switch of the triggering device.
  • the plunger can be moved back and forth by electrical actuation of the locking device, preferably linearly or, likewise preferably, about a pivot axis.
  • a further preferred exemplary embodiment of the hand-held implement is characterized in that the plunger can be moved between a blocking position in which the trigger switch is blocked and a release position in which the trigger switch is released.
  • the movement of the ram is preferably linear or also preferred around a pivot axis. Due to the direct effect of the plunger on the trigger switch, complex mechanics can be dispensed with.
  • Another preferred exemplary embodiment of the hand-held working device is characterized in that the locking device is mechanically coupled to a transmission element, which in turn acts mechanically on the triggering device.
  • the transmission element is advantageously used to represent the blocking function and the release function.
  • a further preferred exemplary embodiment of the hand-held implement is characterized in that the transmission element is designed as a lever which can be acted upon in the longitudinal direction by the locking device and in the transverse direction by the triggering device.
  • the lever can be articulated with an end facing the locking device. With one end facing away from the locking device, the lever can be coupled to a driving device in the implement, for example via a further coupling element.
  • Another preferred exemplary embodiment of the hand-held working device is characterized in that the lifting magnet is connected in terms of control to a control.
  • the control is integrated in the working device and is used to actuate the solenoid depending on at least one device status.
  • control is connected to a pressure sensor.
  • the pressure sensor is used to detect whether the implement is pressed against a surface by a user.
  • a further preferred exemplary embodiment of the hand-held working device is characterized in that the control system actuates the locking device electrically in such a way that the locking device enables the triggering device to be actuated when the contact pressure sensor detects that the hand-held working device is pressed against a surface, and that the locking device actuates the triggering device blocked if the pressure sensor does not detect that the hand-held tool is pressed against a surface.
  • the locking device has an electromagnet and a lifting member includes.
  • the lifting member is preferably partially, particularly preferably completely, immersed in the electromagnet.
  • the lifting member is arranged completely outside the electromagnet, both in the blocking position and in the release position of the locking device.
  • Another preferred embodiment of the hand-held implement is characterized in that the plunger has the lifting member.
  • a hand-held implement 1 designed as a bolt-actuating device is shown in two different states.
  • the bolt-actuating device 1 comprises a spring device 10 as the drive element and is therefore also referred to as a spring nailer.
  • the spring device 10 is tensioned by an electric motor that drives a spindle 12.
  • the spindle 12 is arranged together with a spindle nut 14 in a housing 2 of the implement 1.
  • the housing 2 comprises a magazine for fastening elements 3, in particular bolts, of which a store is contained in the magazine.
  • the bolt gun 1 further comprises a handle 4 which can be gripped by the user's hand.
  • the fastening elements 3 emerge from the implement 1 at a bolt-setting end 5 and are driven into a base 6 with the aid of a plunger 8.
  • a pressure sensor 16 is arranged on the bolt-setting end 5 of the implement 1.
  • the pressure sensor 16 detects whether the implement 1 is pressed against the surface 6 by a user in use.
  • the pressure sensor 16 is connected in terms of control to a controller 18.
  • the controller 18 in turn is connected in terms of control to a triggering device 20 of the implement 1, the control being carried out electronically. In an embodiment not shown, the control is carried out mechanically.
  • the trigger device 20 comprises a trigger switch 22, which is also referred to as a trigger.
  • the trigger switch 22 can, as in Figure 1 sees are blocked by a lifting magnet 24 designed as an electromagnet.
  • the lifting magnet 24 has a plunger 25 which acts directly on the trigger switch 22.
  • Figure 1 is the plunger 25 of the solenoid 24 in its blocking position, in which the trigger switch 22 is blocked.
  • Figure 2 is the plunger 25 of the solenoid 24 in its release position, in which the trigger switch 22 is released.
  • a lifting member, not shown, of the plunger 25 is completely immersed in the lifting magnet 24.
  • the lifting magnet 24 is released or blocked via the controller 18 as a function of a contact signal from the contact sensor 16.
  • a contact signal from the contact sensor 16.
  • other device-internal, in particular electrical or mechanical, signals can also be used to control the magnet 24.
  • FIG 3 is the trigger switch 22 of the trigger device 20 of the in Figure 1 shown implement coupled via a transmission element 30 to a solenoid 40.
  • the transmission element 30 is controlled by the lifting magnet 40.
  • the trigger switch 22 of the trigger device 20 is blocked or released.
  • the transmission element 30 comprises a lever 32, which at its in Figure 3 lower end is hinged to a support structure (not shown) or to the lifting magnet 40. With his in Figure 3 The upper end of the lever 32 is articulated to a coupling element 44. The lever 32 further comprises between its two ends a recess 34 which is designed as a through hole.
  • the recess 34 is assigned an actuator 35, which is formed on the trigger switch 22.
  • a double arrow 36 indicates that the actuator 35 translates when the triggering device 20 is actuated Figure 3 to the right and left, is movable.
  • the transmission element 30 is in its receiving position.
  • the recess 34 of the lever 32 is positioned relative to the actuator 35 of the triggering device 20 such that the actuator 35 is moved into the recess 34 when the trigger switch 22 is actuated.
  • the trigger switch 22 moves into space, so to speak. No movement of the lever 32 is initiated by the trigger switch 22.
  • a double arrow 41 indicates that the lever 32 can be moved upward or downward in translation in the longitudinal direction of the lever 32 by the lifting magnet 40. If the lever 32 in Figure 3 is moved up or down, then the lever 32 assumes a trigger position in which actuation of the trigger switch 22 initiates a movement of the lever 32. This movement of the lever 32 is transmitted via the coupling element 44 to the driving mechanism of the implement 1, as indicated by a double arrow 45.
  • a locking device 50 has an electrically actuable electromagnet 51 and a lifting member 52 which is arranged completely outside of the electromagnet 51 in all operating positions and which is articulated on a pivot axis 53.
  • the lifting member 52 is preferably made of a ferromagnetic or permanent magnetic material.
  • a locking device 60 has an electrically actuable electromagnet 61 and a lifting element 62 which is arranged completely outside of the electromagnet 61 in all operating positions.
  • the lifting member 62 is designed as a piston 64 movable in a guide and rigidly connected to a plunger 63, the lifting member 62 and in particular the plunger 63 is preferably made of a ferromagnetic or permanent magnetic material.
  • a locking device 70 has an electrically actuable actuator 71 and a pivoting lever 73 which is rotatable about a pivot axis 72 and which is articulated to the pivot axis 72.
  • the pivot lever 73 acts mechanically directly on a trigger switch 74 which, for increased security, preferably has a recess 75 into which the pivot lever 73 engages in the blocking position.
  • a contour of the recess 75 is adapted to a contour of the pivot lever 73.

Description

Technisches GebietTechnical field

Die Erfindung betrifft ein handgeführtes Arbeitsgerät zum Eintreiben von Befestigungselementen in einen Untergrund, mit einer Auslöseeinrichtung, deren Betätigung einen Eintreibvorgang auslöst und die in Abhängigkeit von mindestens einem Gerätezustand blockierbar ist.The invention relates to a hand-held implement for driving fasteners into a subsurface, with a triggering device, the actuation of which triggers a driving-in process and which can be blocked depending on at least one device state.

Stand der TechnikState of the art

Aus dem US-Patent US 7,922,054 B2 ist eine Vorrichtung zum Ausüben eines Schlages auf ein Befestigungselement bekannt, die einen Auslösermechanismus zum Initiieren einer Setzung und einen Auslöserdeaktivierungsmechanismus zum Deaktivieren des Auslösermechanismus umfasst.From the U.S. patent US 7,922,054 B2 an apparatus for striking a fastener is known which includes a trigger mechanism for initiating settlement and a trigger deactivation mechanism for deactivating the trigger mechanism.

Die EP 736 360 A2 beschreibt eine Auslösevorrichtung mit einem Auslöseschalter, einem Kontaktschalter, einem elektromagnetischen Ventil und einer Kontrolleinheit. Die Kontrolleinheit lässt eine Bestromung des elektromagnetischen Ventils nur während eines vorbestimmten Zeitintervalls nach einem Auslösesignal des Auslöseschalters zu, wenn der Auslöseschalter und der Kontaktschalter geschlossen sind.The EP 736 360 A2 describes a trigger device with a trigger switch, a contact switch, an electromagnetic valve and a control unit. The control unit allows the electromagnetic valve to be energized only during a predetermined time interval after a trigger signal from the trigger switch when the trigger switch and the contact switch are closed.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, das Betreiben eines handgeführten Arbeitsgeräts zum Eintreiben von Befestigungselementen in einen Untergrund weiter zu vereinfachen oder zu verbessern.The object of the invention is to further simplify or improve the operation of a hand-held implement for driving fasteners into a subsurface.

Die Aufgabe ist bei einem handgeführten Arbeitsgerät zum Eintreiben von Befestigungselementen in einen Untergrund, mit einer Auslöseeinrichtung, deren Betätigung einen Eintreibvorgang auslöst und die in Abhängigkeit von mindestens einem Gerätezustand blockierbar ist, dadurch gelöst, dass der Auslöseeinrichtung eine elektrisch betätigbare, mechanische Sperreinrichtung zugeordnet ist, mit der das Betätigen der Auslöseeinrichtung blockiert oder freigegeben werden kann. Die Auslöseeinrichtung umfasst vorzugsweise einen Auslöseschalter, der auch als Trigger bezeichnet wird. Die Auslöseeinrichtung ist bevorzugt als Hubmagnet, besonders bevorzugt als Elektromagnet ausgeführt und über eine geräteinterne Steuerung elektrisch betätigbar. Durch den Hubmagneten kann die Auslöseeinrichtung schnell und sicher blockiert oder freigegeben werden. Das handgeführte Arbeitsgerät ist vorzugsweise als Bolzensetzgerät ausgeführt. Das Bolzensetzgerät kann elektrisch, pneumatisch oder mit einem Brennstoff betrieben werden. Bei der elektrischen Ausführung umfasst das Bolzensetzgerät vorteilhaft eine Federeinrichtung, die als Zwischenspeicher dient, um in dem Bolzensetzgerät aus einem elektrischen Antrieb stammende Energie zu speichern, die bei einem Setzvorgang schlagartig abgegeben werden kann. Das Übertragungselement weist eine Ausnehmung auf, deren Position relativ zu der Auslöseeinrichtung durch die Sperreinrichtung veränderbar ist. Dadurch kann die Auslöseeinrichtung auf einfache Art und Weise blockiert oder freigegeben werden. Die Ausnehmung ist in einer Aufnahmestellung so zu der Auslöseeinrichtung positioniert, dass ein Aktor der Auslöseeinrichtung bei deren Betätigung in die Ausnehmung eingreift, ohne eine Bewegung des Übertragungselements auszulösen. Das Übertragungselement kann vorteilhaft in seine Aufnahmestellung vorgespannt sein. Dadurch kann auf einfache Art und Weise eine Fail-Safe-Lösung dargestellt werden. Die Ausnehmung ist in einer Auslösestellung so zu der Auslöseeinrichtung positioniert, dass der Aktor der Auslöseeinrichtung bei deren Betätigung eine Bewegung des Übertragungselements auslöst. In der Auslösestellung greift der Aktor der Auslöseeinrichtung nicht in die Ausnehmung an dem Übertragungselement ein.The task is in a hand-held implement for driving fasteners into a surface, with a release device, the actuation triggers a driving-in process and which can be blocked depending on at least one device state, in that the triggering device is assigned an electrically actuable, mechanical locking device with which the actuation of the triggering device can be blocked or released. The trigger device preferably comprises a trigger switch, which is also referred to as a trigger. The triggering device is preferably designed as a lifting magnet, particularly preferably as an electromagnet, and can be actuated electrically via a device-internal control. The release device can be blocked and released quickly and safely by the lifting magnet. The hand-held implement is preferably designed as a bolt-driving tool. The stud setting tool can be operated electrically, pneumatically or with a fuel. In the electrical version, the bolt-setting tool advantageously comprises a spring device, which serves as an intermediate store in order to store energy in the bolt-setting tool from an electric drive, which energy can be released suddenly during a setting process. The transmission element has a recess, the position of which can be changed relative to the triggering device by the locking device. As a result, the triggering device can be blocked or released in a simple manner. The recess is positioned in a receiving position in relation to the triggering device such that an actuator of the triggering device engages in the recess when it is actuated without triggering a movement of the transmission element. The transmission element can advantageously be biased into its receiving position. This enables a fail-safe solution to be displayed in a simple manner. In a release position, the recess is positioned in relation to the release device such that the actuator of the release device triggers a movement of the transmission element when it is actuated. In the release position, the actuator of the release device does not engage in the recess on the transmission element.

Ein bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Sperreinrichtung einen Stößel umfasst, der mechanisch auf einen Auslöseschalter der Auslöseeinrichtung wirkt. Der Stößel ist durch eine elektrische Betätigung der Sperreinrichtung hin und her bewegbar, bevorzugt linear oder, ebenfalls bevorzugt, um eine Schwenkachse.A preferred exemplary embodiment of the hand-held implement is characterized in that the locking device comprises a plunger which acts mechanically on a trigger switch of the triggering device. The plunger can be moved back and forth by electrical actuation of the locking device, preferably linearly or, likewise preferably, about a pivot axis.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass der Stößel zwischen einer Blockierstellung, in welcher der Auslöseschalter blockiert ist, und einer Freigabestellung bewegbar ist, in welcher der Auslöseschalter freigegeben ist. Die Bewegung des Stößels erfolgt bevorzugt linear oder, ebenfalls bevorzugt, um eine Schwenkachse. Durch die direkte Wirkung des Stößels auf den Auslöseschalter kann eine aufwendige Mechanik entfallen.A further preferred exemplary embodiment of the hand-held implement is characterized in that the plunger can be moved between a blocking position in which the trigger switch is blocked and a release position in which the trigger switch is released. The movement of the ram is preferably linear or also preferred around a pivot axis. Due to the direct effect of the plunger on the trigger switch, complex mechanics can be dispensed with.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Sperreinrichtung mechanisch mit einem Übertragungselement gekoppelt ist, das wiederum mechanisch auf die Auslöseeinrichtung wirkt. Das Übertragungselement dient vorteilhaft zum Darstellen der Blockierfunktion und der Freigabefunktion.Another preferred exemplary embodiment of the hand-held working device is characterized in that the locking device is mechanically coupled to a transmission element, which in turn acts mechanically on the triggering device. The transmission element is advantageously used to represent the blocking function and the release function.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass das Übertragungselement als Hebel ausgeführt ist, der in Längsrichtung durch die Sperreinrichtung und in Querrichtung durch die Auslöseeinrichtung beaufschlagbar ist. Der Hebel kann mit einem der Sperreinrichtung zugewandten Ende gelenkig gelagert sein. Mit einem der Sperreinrichtung abgewandten Ende kann der Hebel, zum Beispiel über ein weiteres Kopplungselement, mit einer Eintreibeinrichtung in dem Arbeitsgerät gekoppelt sein.A further preferred exemplary embodiment of the hand-held implement is characterized in that the transmission element is designed as a lever which can be acted upon in the longitudinal direction by the locking device and in the transverse direction by the triggering device. The lever can be articulated with an end facing the locking device. With one end facing away from the locking device, the lever can be coupled to a driving device in the implement, for example via a further coupling element.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass der Hubmagnet steuerungsmäßig mit einer Steuerung verbunden ist. Die Steuerung ist in das Arbeitsgerät integriert und dient dazu, den Hubmagneten in Abhängigkeit von mindestens einem Gerätezustand zu betätigen.Another preferred exemplary embodiment of the hand-held working device is characterized in that the lifting magnet is connected in terms of control to a control. The control is integrated in the working device and is used to actuate the solenoid depending on at least one device status.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Steuerung mit einem Anpressfühler verbunden ist. Der Anpressfühler dient dazu, zu detektieren, ob das Arbeitsgerät von einem Anwender an einen Untergrund angepresst wird.Another preferred exemplary embodiment of the hand-held implement is characterized in that the control is connected to a pressure sensor. The pressure sensor is used to detect whether the implement is pressed against a surface by a user.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Steuerung die Sperreinrichtung elektrisch so betätigt, dass die Sperreinrichtung das Betätigen der Auslöseeinrichtung freigibt, wenn der Anpressfühler ein Anpressen des handgeführten Arbeitsgeräts an einen Untergrund detektiert, und dass die Sperreinrichtung das Betätigen der Auslöseeinrichtung blockiert, wenn der Anpressfühler kein Anpressen des handgeführten Arbeitsgeräts an einen Untergrund detektiert.A further preferred exemplary embodiment of the hand-held working device is characterized in that the control system actuates the locking device electrically in such a way that the locking device enables the triggering device to be actuated when the contact pressure sensor detects that the hand-held working device is pressed against a surface, and that the locking device actuates the triggering device blocked if the pressure sensor does not detect that the hand-held tool is pressed against a surface.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Sperreinrichtung einen Elektromagneten und ein Hubglied umfasst. Bevorzugt taucht das Hubglied teilweise, besonders bevorzugt vollständig, in den Elektromagneten ein. Gemäss einem weiteren bevorzugten Ausführungsbeispiel ist das Hubglied sowohl in der Blockierstellung als auch in der Freigabestellung der Sperreinrichtung vollständig außerhalb des Elektromagneten angeordnet.Another preferred exemplary embodiment of the hand-held implement is characterized in that the locking device has an electromagnet and a lifting member includes. The lifting member is preferably partially, particularly preferably completely, immersed in the electromagnet. According to a further preferred exemplary embodiment, the lifting member is arranged completely outside the electromagnet, both in the blocking position and in the release position of the locking device.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass der Stößel das Hubglied aufweist.Another preferred embodiment of the hand-held implement is characterized in that the plunger has the lifting member.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung verschiedene Ausführungsbeispiele im Einzelnen beschrieben sind. Es zeigen:

Figur 1
ein handgeführtes Arbeitsgerät mit einer Auslöseeinrichtung und einem Hubmagneten in einer Blockierstellung;
Figur 2
das Arbeitsgerät aus Figur 1 mit dem Hubmagneten in einer Freigabestellung;
Figur 3
eine detaillierte Darstellung der Auslöseeinrichtung mit dem Hubmagneten gemäß einem weiteren Ausführungsbeispiel;
Figur 4
ein weiteres Ausführungsbeispiel einer Sperreinrichtung;
Figur 5
ein weiteres Ausführungsbeispiel einer Sperreinrichtung und
Figur 6
ein weiteres Ausführungsbeispiel einer Sperreinrichtung.
Further advantages, features and details of the invention emerge from the following description, in which various exemplary embodiments are described in detail with reference to the drawing. Show it:
Figure 1
a hand-held implement with a release device and a solenoid in a blocking position;
Figure 2
the implement Figure 1 with the solenoid in a release position;
Figure 3
a detailed representation of the triggering device with the solenoid according to a further embodiment;
Figure 4
a further embodiment of a locking device;
Figure 5
a further embodiment of a locking device and
Figure 6
a further embodiment of a locking device.

Ausführungsbeispieleembodiments

In den Figuren 1 und 2 ist ein als Bolzensetzgerät ausgeführtes handgeführtes Arbeitsgerät 1 in zwei verschiedenen Zuständen dargestellt. Das Bolzensetzgerät 1 umfasst als Antriebselement eine Federeinrichtung 10 und wird daher auch als Federnagler bezeichnet. Die Federeinrichtung 10 wird durch einen Elektromotor gespannt, der eine Spindel 12 antreibt. Die Spindel 12 ist zusammen mit einer Spindelmutter 14 in einem Gehäuse 2 des Arbeitsgeräts 1 angeordnet.In the Figures 1 and 2 A hand-held implement 1 designed as a bolt-actuating device is shown in two different states. The bolt-actuating device 1 comprises a spring device 10 as the drive element and is therefore also referred to as a spring nailer. The spring device 10 is tensioned by an electric motor that drives a spindle 12. The spindle 12 is arranged together with a spindle nut 14 in a housing 2 of the implement 1.

Das Gehäuse 2 umfasst ein Magazin für Befestigungselemente 3, insbesondere Bolzen, von denen in dem Magazin ein Vorrat enthalten ist. Das Bolzensetzgerät 1 umfasst des Weiteren einen Griff 4, der mit der Hand des Benutzers umgriffen werden kann. Die Befestigungselemente 3 treten an einem Bolzensetzende 5 aus dem Arbeitsgerät 1 aus und werden mit Hilfe eines Stößels 8 in einen Untergrund 6 eingetrieben.The housing 2 comprises a magazine for fastening elements 3, in particular bolts, of which a store is contained in the magazine. The bolt gun 1 further comprises a handle 4 which can be gripped by the user's hand. The fastening elements 3 emerge from the implement 1 at a bolt-setting end 5 and are driven into a base 6 with the aid of a plunger 8.

Am Bolzensetzende 5 des Arbeitsgeräts 1 ist ein Anpressfühler 16 angeordnet. Der Anpressfühler 16 detektiert, ob das Arbeitsgerät 1 im Einsatz von einem Anwender an den Untergrund 6 angepresst wird. Der Anpressfühler 16 ist steuerungsmäßig mit einer Steuerung 18 verbunden. Die Steuerung 18 wiederum ist steuerungsmäßig mit einer Auslöseeinrichtung 20 des Arbeitsgeräts 1 verbunden, wobei die Steuerung elektronisch erfolgt. Bei einem nicht gezeigten Ausführungsbeispiel erfolgt die Steuerung mechanisch. Die Auslöseeinrichtung 20 umfasst einen Auslöseschalter 22, der auch als Trigger bezeichnet wird.A pressure sensor 16 is arranged on the bolt-setting end 5 of the implement 1. The pressure sensor 16 detects whether the implement 1 is pressed against the surface 6 by a user in use. The pressure sensor 16 is connected in terms of control to a controller 18. The controller 18 in turn is connected in terms of control to a triggering device 20 of the implement 1, the control being carried out electronically. In an embodiment not shown, the control is carried out mechanically. The trigger device 20 comprises a trigger switch 22, which is also referred to as a trigger.

Der Auslöseschalter 22 kann, wie man in Figur 1 sieht, durch einen als Elektromagneten ausgebildeten Hubmagneten 24 blockiert werden. Der Hubmagnet 24 weist einen Stößel 25 auf, der direkt auf den Auslöseschalter 22 wirkt. In Figur 1 befindet sich der Stößel 25 des Hubmagneten 24 in seiner Blockierstellung, in welcher der Auslöseschalter 22 blockiert ist. In Figur 2 befindet sich der Stößel 25 des Hubmagneten 24 in seiner Freigabestellung, in welcher der Auslöseschalter 22 freigegeben ist. Ein nicht dargestelltes Hubglied des Stößels 25 taucht dabei vollständig in den Hubmagneten 24 ein.The trigger switch 22 can, as in Figure 1 sees are blocked by a lifting magnet 24 designed as an electromagnet. The lifting magnet 24 has a plunger 25 which acts directly on the trigger switch 22. In Figure 1 is the plunger 25 of the solenoid 24 in its blocking position, in which the trigger switch 22 is blocked. In Figure 2 is the plunger 25 of the solenoid 24 in its release position, in which the trigger switch 22 is released. A lifting member, not shown, of the plunger 25 is completely immersed in the lifting magnet 24.

Der Hubmagnet 24 wird über die Steuerung 18 in Abhängigkeit von einem Anpresssignal des Anpressfühlers 16 freigegeben oder blockiert. Anstelle des Anpresssignals des Anpressfühlers 16 können aber auch andere geräteinterne, insbesondere elektrische oder mechanische Signale verwendet werden, um den Magneten 24 anzusteuern.The lifting magnet 24 is released or blocked via the controller 18 as a function of a contact signal from the contact sensor 16. Instead of the pressure signal of the pressure sensor 16, other device-internal, in particular electrical or mechanical, signals can also be used to control the magnet 24.

In Figur 3 ist der Auslöseschalter 22 der Auslöseeinrichtung 20 des in Figur 1 dargestellten Arbeitsgeräts über ein Übertragungselement 30 mit einem Hubmagneten 40 gekoppelt. Das Übertragungselement 30 wird durch den Hubmagneten 40 angesteuert. Je nach Position des Übertragungselements 30 ist der Auslöseschalter 22 der Auslöseeinrichtung 20 blockiert oder freigegeben.In Figure 3 is the trigger switch 22 of the trigger device 20 of the in Figure 1 shown implement coupled via a transmission element 30 to a solenoid 40. The transmission element 30 is controlled by the lifting magnet 40. Depending on the position of the transmission element 30, the trigger switch 22 of the trigger device 20 is blocked or released.

Das Übertragungselement 30 umfasst einen Hebel 32, der an seinem in Figur 3 unteren Ende an eine (nicht dargestellte) Tragstruktur oder an den Hubmagneten 40 angelenkt ist. Mit seinem in Figur 3 oberen Ende ist der Hebel 32 an ein Kopplungselement 44 angelenkt. Der Hebel 32 umfasst des Weiteren zwischen seinen beiden Enden eine Ausnehmung 34, die als Durchgangsloch ausgeführt ist.The transmission element 30 comprises a lever 32, which at its in Figure 3 lower end is hinged to a support structure (not shown) or to the lifting magnet 40. With his in Figure 3 The upper end of the lever 32 is articulated to a coupling element 44. The lever 32 further comprises between its two ends a recess 34 which is designed as a through hole.

Der Ausnehmung 34 ist ein Aktor 35 zugeordnet, der an dem Auslöseschalter 22 ausgebildet ist. Durch einen Doppelpfeil 36 ist angedeutet, dass der Aktor 35 bei einer Betätigung der Auslöseeinrichtung 20 translatorisch, in Figur 3 nach rechts und links, bewegbar ist.The recess 34 is assigned an actuator 35, which is formed on the trigger switch 22. A double arrow 36 indicates that the actuator 35 translates when the triggering device 20 is actuated Figure 3 to the right and left, is movable.

In Figur 3 befindet sich das Übertragungselement 30 in seiner Aufnahmestellung. In der Aufnahmestellung ist die Ausnehmung 34 des Hebels 32 relativ zu dem Aktor 35 der Auslöseeinrichtung 20 so positioniert, dass der Aktor 35 bei einer Betätigung des Auslöseschalters 22 in die Ausnehmung 34 hinein bewegt wird. Der Auslöseschalter 22 bewegt sich sozusagen ins Leere. Durch den Auslöseschalter 22 wird dabei keine Bewegung des Hebels 32 initiiert.In Figure 3 the transmission element 30 is in its receiving position. In the receiving position, the recess 34 of the lever 32 is positioned relative to the actuator 35 of the triggering device 20 such that the actuator 35 is moved into the recess 34 when the trigger switch 22 is actuated. The trigger switch 22 moves into space, so to speak. No movement of the lever 32 is initiated by the trigger switch 22.

Durch einen Doppelpfeil 41 ist angedeutet, dass der Hebel 32 durch den Hubmagneten 40 translatorisch in Längsrichtung des Hebels 32 nach oben oder nach unten bewegbar ist. Wenn der Hebel 32 in Figur 3 nach oben oder nach unten bewegt wird, dann nimmt der Hebel 32 eine Auslösestellung ein, in welcher eine Betätigung des Auslöseschalters 22 eine Bewegung des Hebels 32 initiiert. Diese Bewegung des Hebels 32 wird über das Kopplungselement 44 auf den Eintreibmechanismus des Arbeitsgeräts 1 übertragen, wie durch einen Doppelpfeil 45 angedeutet ist.A double arrow 41 indicates that the lever 32 can be moved upward or downward in translation in the longitudinal direction of the lever 32 by the lifting magnet 40. If the lever 32 in Figure 3 is moved up or down, then the lever 32 assumes a trigger position in which actuation of the trigger switch 22 initiates a movement of the lever 32. This movement of the lever 32 is transmitted via the coupling element 44 to the driving mechanism of the implement 1, as indicated by a double arrow 45.

Gemäss Fig. 4 weist eine Sperreinrichtung 50 einen elektrisch betätigbaren Elektromagneten 51 sowie ein in allen Betriebsstellungen vollständig außerhalb des Elektromagneten 51 angeordnetes Hubglied 52 auf, welches an einer Schwenkachse 53 angelenkt ist. Das Hubglied 52 ist bevorzugt aus einem ferromagnetischen oder dauermagnetischen Material gefertigt.According to Fig. 4 a locking device 50 has an electrically actuable electromagnet 51 and a lifting member 52 which is arranged completely outside of the electromagnet 51 in all operating positions and which is articulated on a pivot axis 53. The lifting member 52 is preferably made of a ferromagnetic or permanent magnetic material.

Gemäss Fig. 5 weist eine Sperreinrichtung 60 einen elektrisch betätigbaren Elektromagneten 61 sowie ein in allen Betriebsstellungen vollständig außerhalb des Elektromagneten 61 angeordnetes Hubglied 62 auf. Das Hubglied 62 ist als in einer Führung 64 beweglicher Kolben ausgeführt und starr mit einem Stößel 63 verbunden, wobei das Hubglied 62 und insbesondere der Stößel 63 bevorzugt aus einem ferromagnetischen oder dauermagnetischen Material gefertigt sind.According to Fig. 5 A locking device 60 has an electrically actuable electromagnet 61 and a lifting element 62 which is arranged completely outside of the electromagnet 61 in all operating positions. The lifting member 62 is designed as a piston 64 movable in a guide and rigidly connected to a plunger 63, the lifting member 62 and in particular the plunger 63 is preferably made of a ferromagnetic or permanent magnetic material.

Gemäss Fig. 6 weist eine Sperreinrichtung 70 einen elektrisch betätigbaren Aktuator 71 sowie einen um eine Schwenkachse 72 drehbeweglichen Schwenkhebel 73 auf, welcher an die Schwenkachse 72 angelenkt ist. Der Schwenkhebel 73 wirkt mechanisch direkt auf einen Auslöseschalter 74, welcher für eine erhöhte Sicherheit bevorzugt eine Ausnehmung 75 aufweist, in welche der Schwenkhebel 73 in der Blockierstellung eingreift. Eine Kontur der Ausnehmung 75 ist dabei einer Kontur des Schwenkhebels 73 angepasst.According to Fig. 6 a locking device 70 has an electrically actuable actuator 71 and a pivoting lever 73 which is rotatable about a pivot axis 72 and which is articulated to the pivot axis 72. The pivot lever 73 acts mechanically directly on a trigger switch 74 which, for increased security, preferably has a recess 75 into which the pivot lever 73 engages in the blocking position. A contour of the recess 75 is adapted to a contour of the pivot lever 73.

Claims (11)

  1. Hand-held tool (1) for driving fastening elements (3) into a base (6), comprising a triggering device (20), the actuation of which triggers a driving-in action and which, depending on at least one state of the tool, can be blocked, wherein the triggering device (20) is assigned an electrically actuable, mechanical blocking device (24; 40), with which the actuation of the triggering device (20) can be blocked or released, wherein the blocking device (40) is mechanically coupled to a transmission element (30), which in turn acts mechanically on the triggering device (20), wherein the transmission element (30) has a clearance (34), characterized in that the position of the clearance (34) in relation to the triggering device (20) can be varied by the blocking device (40), wherein, in a receiving position, the clearance (34) is positioned in relation to the triggering device (20) such that an actuator (35) of the triggering device (20) when actuated engages in the clearance (34), without triggering a movement of the transmission element (30), and wherein, in a triggering position, the clearance (34) is positioned in relation to the triggering device (20) such that the actuator (35) of the triggering device (20) when actuated triggers a movement of the transmission element (30).
  2. Hand-held tool (1) according to Claim 1, characterized in that the blocking device (24) comprises a tappet (25), which acts mechanically on a triggering switch (22) of the triggering device (20) .
  3. Hand-held tool (1) according to Claim 2, characterized in that the tappet (25) is movable, in particular linearly or about a pivot axis, between a blocking position, in which the triggering switch (22) is blocked, and a release position, in which the triggering switch (22) is released.
  4. Hand-held tool (1) according to one of the preceding claims, characterized in that the transmission element (30) is designed as a lever (32), which can be acted on in the longitudinal direction by the blocking device (40) and in the transverse direction by the triggering device (20).
  5. Hand-held tool (1) according to one of the preceding claims, characterized in that the blocking device (24; 40) is connected for control purposes to a controller (18).
  6. Hand-held tool (1) according to one of the preceding claims, characterized in that the control (18) is connected to a pressing sensor (16).
  7. Hand-held tool (1) according to Claim 6, characterized in that the controller electrically actuates the blocking device (24; 40) such that the blocking device (24; 40) releases the actuation of the triggering device (20) if the pressing sensor (16) detects pressing of the hand-held tool (1) against a base, and in that the blocking device (24; 40) blocks the actuation of the triggering device (20) if the pressing sensor (16) does not detect pressing of the hand-held tool (1) against a base.
  8. Hand-held tool (1) according to one of the preceding claims, characterized in that the blocking device (24; 40) comprises an electromagnet and a lifting member.
  9. Hand-held tool (1) according to Claim 8, characterized in that the lifting member at least partially penetrates the electromagnet.
  10. Hand-held tool (1) according to Claim 8, characterized in that, both in the blocking position and in the release position of the blocking device, the lifting member is arranged completely outside the electromagnet.
  11. Hand-held tool (1) according to one of the preceding claims, characterized in that the tappet comprises the lifting member.
EP13753165.3A 2012-08-24 2013-08-21 Hand-held tool Active EP2888080B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012215126.5A DE102012215126A1 (en) 2012-08-24 2012-08-24 Hand-held implement
PCT/EP2013/067359 WO2014029796A2 (en) 2012-08-24 2013-08-21 Hand-held tool

Publications (2)

Publication Number Publication Date
EP2888080A2 EP2888080A2 (en) 2015-07-01
EP2888080B1 true EP2888080B1 (en) 2020-02-26

Family

ID=49035579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13753165.3A Active EP2888080B1 (en) 2012-08-24 2013-08-21 Hand-held tool

Country Status (7)

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US (1) US10118283B2 (en)
EP (1) EP2888080B1 (en)
JP (1) JP5960914B2 (en)
CN (1) CN104684693B (en)
DE (1) DE102012215126A1 (en)
TW (1) TWI624337B (en)
WO (1) WO2014029796A2 (en)

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Also Published As

Publication number Publication date
EP2888080A2 (en) 2015-07-01
JP2015524755A (en) 2015-08-27
WO2014029796A3 (en) 2014-09-12
TW201424951A (en) 2014-07-01
DE102012215126A1 (en) 2014-05-28
CN104684693B (en) 2017-05-10
WO2014029796A2 (en) 2014-02-27
US10118283B2 (en) 2018-11-06
TWI624337B (en) 2018-05-21
JP5960914B2 (en) 2016-08-02
US20150298307A1 (en) 2015-10-22
CN104684693A (en) 2015-06-03

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