EP2656974A2 - Handheld work tool and method for operating a hand-held tool - Google Patents

Handheld work tool and method for operating a hand-held tool Download PDF

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Publication number
EP2656974A2
EP2656974A2 EP13163904.9A EP13163904A EP2656974A2 EP 2656974 A2 EP2656974 A2 EP 2656974A2 EP 13163904 A EP13163904 A EP 13163904A EP 2656974 A2 EP2656974 A2 EP 2656974A2
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EP
European Patent Office
Prior art keywords
driving
information
hand
energy
implement
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EP13163904.9A
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German (de)
French (fr)
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EP2656974A3 (en
EP2656974B1 (en
Inventor
Uwe Gerold
Norbert Welte
Thorsten Sauer
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Hilti AG
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Hilti AG
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Publication of EP2656974A2 publication Critical patent/EP2656974A2/en
Publication of EP2656974A3 publication Critical patent/EP2656974A3/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
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure

Definitions

  • the invention relates to a hand-held implement for driving fasteners into a substrate, wherein abruptly driving energy is delivered to the fasteners.
  • the invention further relates to a method for operating such a hand-held implement.
  • German patent application DE 103 03 006 A1 is a generic working device with at least one sensor device for detecting occurring during a set or impact pulse acceleration forces and with an interface for data communication and / or data output known.
  • German patent DE 103 19 646 B3 is a combustion-powered setting tool with an ignition unit for propellant, with a drivable via the blowing agent network and with a receptacle for a propellant container, wherein the setting device has a display for reproducing propellant level data of a propellant container located in the setting device.
  • the object of the invention is to further simplify and / or improve the operation of a hand-held implement for driving fasteners into a substrate, wherein abruptly driving energy is delivered to the fasteners.
  • the object is in a hand-held implement for driving fasteners into a substrate, wherein abruptly Einbalergie is delivered to the fasteners, achieved in that the implement comprises a Einbalergieinformations announced, by the information about the driving in a previous drive or at several previous driving operations Einbalergie mediated.
  • the information is preferably communicated to a user or user of the hand-held implement. Alternatively or additionally, however, the information can also be transmitted, for example by remote data transmission, from the hand-held implement to an almost arbitrary point outside the hand-held implement.
  • the implement is preferably a hand-held implement for setting bolts operated with fuel gas. Therefore, the implement may also be referred to as a gas powered bolt gun or bolt puller.
  • the fuel gas is supplied to a device-internal combustion chamber in which a combustible mixture is ignited in order to drive a fastener, such as a bolt or a nail, into a substrate.
  • a fastener such as a bolt or a nail
  • the invention provides the user or user of the hand-held implement in a simple manner suitable for construction sites, which Einandergie, in particular which Einandergiemenge, was submitted by the hand-held implement at least one previous drive-in to the fastener.
  • the information can be used particularly advantageously for assessing the quality of a previous attachment.
  • the user or user of the hand-held implement is no longer dependent only on his subjective impression in the operation of the implement, but is reliably informed of the result of the previous drive-in process.
  • a preferred embodiment of the hand-held implement is characterized in that the Einforergieinformations shark outputs information about Einbalergieprocessn.
  • the Einforergiemenge used in the previous drive operation is advantageously determined and stored internally device. From the stored values, an energy level is calculated, preferably on the basis of defined intervals. The switching of the energy level has proved to be advantageous in the operation of the working device.
  • a further preferred embodiment of the hand-held implement is characterized in that the information switching of Einandergieinformations worn optically, acoustically and / or haptically.
  • a display preferably of the respective energy level, is clearly visible to the user on the outside of the implement.
  • the user is informed, for example via different signal tones, whether a sufficient amount of driving energy has been delivered to the respective fastening element.
  • the haptic information transfer the user is, for example via different degrees of vibration, preferably via a handle of the implement, communicating contact, whether the amount of energy delivered in the previous drive operation was sufficient.
  • a further preferred embodiment of the hand-guided implement is characterized in that the implement comprises a driving energy information storage means by which the information about the driving energy delivered in a preceding driving operation or in several previous driving operations is stored.
  • This information is preferably used internally to determine the energy levels. Alternatively or additionally, the information can also be used for the optimization of the current provokephroergiemenge.
  • a further preferred exemplary embodiment of the hand-guided implement is characterized in that the implement comprises an actuator which, directly or indirectly, is in a control-technical operative relationship with the driving energy information device in order to control or regulate the amount of driving energy to be delivered in a current driving operation.
  • the implement comprises an actuator which, directly or indirectly, is in a control-technical operative relationship with the driving energy information device in order to control or regulate the amount of driving energy to be delivered in a current driving operation.
  • a desired amount of drive-in energy is compared with an actual drive-in amount delivered in a preceding drive operation in order to determine a manipulated variable.
  • the manipulated variable is then used internally to optimize the delivery of the driving energy.
  • the above-mentioned object is alternatively or additionally achieved by informing a user or user of the implement of information about the drive-in energy delivered in a preceding drive operation or in several previous drive-in operations.
  • the invention provides the user or user of the hand-held implement in a simple manner in construction-suitable form, which Einandergie, in particular what Einconfergiemenge of the hand-held implement at least one previous drive-in was delivered to the fastener.
  • the information can be used particularly advantageously for assessing the quality of a previous attachment.
  • the user or user of the hand-held implement is no longer dependent only on his subjective impression in the operation of the implement, but is reliably informed of the result of the previous drive-in process.
  • a preferred embodiment of the method is characterized in that the information about the drive-in energy delivered in a preceding drive-in operation or in the case of several previous drive-in processes is communicated visually, acoustically and / or haptically to the user or user of the implement. Depending on the requirements, the information can be communicated visually and acoustically, optically and haptically, acoustically and haptically, or optically, acoustically and haptically.
  • a further preferred exemplary embodiment of the method is characterized in that the information about the driving energy delivered in a preceding driving operation or in the case of several preceding driving operations is determined and / or stored internally with the aid of at least one acceleration sensor. The information can then be used internally not only to generate the information, but also to control the driving energy delivery. If required, the information can also be output via remote data transmission.
  • a further preferred exemplary embodiment of the method is characterized in that energy levels are determined from the information about the driving energy delivered in a preceding driving operation or in the case of several preceding driving operations.
  • the use of the energy levels has proven to be advantageous in the operation of the hand-held implement.
  • a further preferred exemplary embodiment of the method is characterized in that a set amount of drive-in energy is compared with an actual drive-in amount delivered in a preceding drive operation in order to determine a manipulated variable.
  • the manipulated variable can advantageously be used internally in order to optimize the delivery of the driving energy to the fastening elements.
  • FIG. 1 is an inventive implement 1 with a housing 2 shown greatly simplified.
  • the implement 1 is designed as a hand-held bolt setting device with a handle 4 to which the bolt setting device 1 for driving a fastener can be tacked, which emerges on actuation of a trigger switch 3 at a bolt leading end 5 from the bolt setting device 1 and can be driven into a ground.
  • the fasteners used are preferably provided via a device-internal magazine 6, which is mounted in the vicinity of the bolt guide end 5 of the bolt-firing device 1. From the magazine 6, the fasteners are preferably automatically removed individually and provided at the bolt guide end 5.
  • the energy required for driving the fastening elements into the ground is provided in a fuel tank 8 in the interior of the bolt setting device 1.
  • the fuel container 8 preferably contains liquid fuel gas and is therefore also referred to as a gas container or gas cartridge.
  • the fuel container 8 is connected via an adjustable or controllable metering device 10 and a gas line 11 with a combustion chamber or a combustion chamber 12.
  • the metering device 10 preferably comprises a metering valve, via which the amount of gas supplied to the combustion chamber, for example, volumetrically or time-dependent, can be controlled.
  • fuel in particular gas
  • air is mixed with air to form a combustible mixture which is ignited to drive a fastener such as a bolt or a nail into the ground.
  • the energy required for driving is transmitted, for example via a working piston 13 of the combustion chamber 12 to a fastener on the bolt guide end 5.
  • a device 14 is arranged, which serves to generate turbulence in the combustion chamber 12, to flush the combustion chamber 12 and / or to cool.
  • the device 14 comprises a fan 15, which is driven by an electric motor 18.
  • the electric motor 18 is controlled via an electronic control device 20.
  • the working device 1 which is also referred to as a gas appliance, furthermore comprises an electrical energy source 25, which inter alia serves to supply the control device 20 with energy.
  • the control device 20 is connected via a control and / or supply line 28 to the electrical energy source 25.
  • the metering device 10 is likewise connected to the control device 20 via a control line 30.
  • an acceleration sensor 34 is connected to the control device 20.
  • the acceleration sensor 34 may include one or more acceleration sensors.
  • the driving energy information device 40 includes a first field of view 41 and a second field of view 42.
  • the first field of view 41 may be capitalized, such as E, to indicate that information about the driving energy output from the implement 1 is displayed using the driving energy information device 40.
  • the second field of view 42 serves, for example, to display energy levels with the aid of different luminous fields, which depend on the amount of drive-in energy emitted.
  • the driving energy available in the working tool 1 which is also referred to as a bolt-setting device or bolt-pushing device, is a particularly important factor for the operation of the bolt-moving device. This is especially true when an attachment point is realized, which must reach certain minimum extraction forces.
  • the driving energy of the device is matched to the fastener used so that it is sufficiently deep in the Subsoil is driven.
  • the user or user of the implement 1 is provided with reliable information about the drive-in energy of the implement 1 delivered to the respective attachment element.
  • a combustible gas mixture is ignited in the combustion chamber 12 of the gas appliance 1, so that the working piston 13 is accelerated by the expansion of the exhaust gas.
  • the power piston 13 drives a suitable fastener, such as a nail or bolt into the ground.
  • the acceleration sensor 34 detects the self-acceleration of the working device 1 during the working-piston movement. A corresponding acceleration signal is evaluated in the control device 20, for example with the aid of a microprocessor.
  • the driving energy delivered by the working device 1 is calculated as a continuous variable, for example in joules.
  • the calculated driving energy and the measuring signal are stored electronically. Based on defined intervals, an energy level is calculated from this.
  • the display of the energy level achieved is optically easy to read in the second field of view 42 of the Einandergieinformations Rhein 40.
  • the energy levels can be advantageously represented by means of LED or LCD displays. For example, four different levels can be displayed as bar graphs.
  • the achieved energy levels can also be displayed acoustically, for example with the aid of a piezo loudspeaker.
  • the individual energy levels can be represented by different numbers of signal tones.
  • the calculated driving energy can furthermore advantageously be used to form a manipulated variable which is used, for example via a suitable position member, for controlling the metering device 10.
  • the invention provides, inter alia, the following advantages. After each attachment with the implement 1, the user learns precisely the driving energy obtained and can thus assess the quality of the attachment and the proper operation of the gas appliance 1. The user is no longer dependent on his subjective impression, but will reliably informed about the result of a previous setting process on the basis of a precise measurement.
  • the implement 1 can be adjusted automatically for optimal attachment in a simple manner.
  • the storage of the determined energy values additionally allows a diagnosis of the device performance in the case of maintenance and / or repair.
  • the data transfer to an external storage system can advantageously be used for the systematic analysis of achieved device energies.
  • the transmitted data can be used by a device manufacturer to optimize device development.

Abstract

The hand-guided tool (1) has a driving energy information device (40) that learns the driving energy information with one or several previous driving operations. A driving energy information memory device stores the driving energy information corresponding to the driving operations. A control unit controls the driving amount of the energy based on the stored driving energy information. An independent claim is included for method for operating hand-guided tool.

Description

Technisches GebietTechnical area

Die Erfindung betrifft ein handgeführtes Arbeitsgerät zum Eintreiben von Befestigungselementen in einen Untergrund, wobei schlagartig Eintreibenergie an die Befestigungselemente abgegeben wird. Die Erfindung betrifft des Weiteren ein Verfahren zum Betreiben eines derartigen handgeführten Arbeitsgeräts.The invention relates to a hand-held implement for driving fasteners into a substrate, wherein abruptly driving energy is delivered to the fasteners. The invention further relates to a method for operating such a hand-held implement.

Stand der TechnikState of the art

Aus der deutschen Offenlegungsschrift DE 103 03 006 A1 ist ein gattungsgemäßes Arbeitsgerät mit wenigstens einer Sensoreinrichtung zur Erfassung von während eines Setz-oder Schlagimpulses auftretenden Beschleunigungskräften sowie mit einer Schnittstelle zur Datenkommunikation und/oder zur Datenausgabe bekannt. Aus der deutschen Patentschrift DE 103 19 646 B3 ist ein brennkraftbetriebenes Setzgerät mit einer Zündeinheit für Treibmittel, mit einem über die Treibmittel antreibbaren Setzwerk und mit einer Aufnahme für einen Treibmittelbehälter bekannt, wobei das Setzgerät ein Display zur Wiedergabe von Treibmittel-Füllstandsdaten eines in dem Setzgerät befindlichen Treibmittelbehälters aufweist.From the German patent application DE 103 03 006 A1 is a generic working device with at least one sensor device for detecting occurring during a set or impact pulse acceleration forces and with an interface for data communication and / or data output known. From the German patent DE 103 19 646 B3 is a combustion-powered setting tool with an ignition unit for propellant, with a drivable via the blowing agent network and with a receptacle for a propellant container, wherein the setting device has a display for reproducing propellant level data of a propellant container located in the setting device.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, das Betreiben eines handgeführten Arbeitsgeräts zum Eintreiben von Befestigungselementen in einen Untergrund, wobei schlagartig Eintreibenergie an die Befestigungselemente abgegeben wird, weiter zu vereinfachen und/oder zu verbessern.The object of the invention is to further simplify and / or improve the operation of a hand-held implement for driving fasteners into a substrate, wherein abruptly driving energy is delivered to the fasteners.

Die Aufgabe ist bei einem handgeführten Arbeitsgerät zum Eintreiben von Befestigungselementen in einen Untergrund, wobei schlagartig Eintreibenergie an die Befestigungselemente abgegeben wird, dadurch gelöst, dass das Arbeitsgerät eine Eintreibenergieinformationseinrichtung umfasst, durch die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie vermittelt werden. Die Informationen werden vorzugsweise einem Benutzer oder Anwender des handgeführten Arbeitsgeräts vermittelt. Alternativ oder zusätzlich können die Informationen aber auch, zum Beispiel per Datenfernübertragung, von dem handgeführten Arbeitsgerät an eine nahezu beliebige Stelle außerhalb des handgeführten Arbeitsgeräts übermittelt werden. Bei dem Arbeitsgerät handelt es sich vorzugsweise um ein handgeführtes Arbeitsgerät zum Setzen von Bolzen, das mit Brenngas betrieben wird. Daher kann das Arbeitsgerät auch als gasbetriebenes Bolzensetzgerät oder Bolzenschubwerkzeug bezeichnet werden. Das Brenngas wird einem geräteinternen Brennraum zugeführt, in welchem ein brennfähiges Gemisch gezündet wird, um ein Befestigungselement, wie einen Bolzen oder einen Nagel, in einen Untergrund einzutreiben. Durch die Erfindung wird dem Anwender oder Benutzer des handgeführten Arbeitsgeräts auf einfache Art und Weise in Baustellen-tauglicher Form vermittelt, welche Eintreibenergie, insbesondere welche Eintreibenergiemenge, von dem handgeführten Arbeitsgerät bei mindestens einem vorangegangenen Eintreibvorgang an das Befestigungselement abgegeben wurde. Die Information kann besonders vorteilhaft zur Beurteilung der Güte einer vorangegangenen Befestigung verwendet werden. Darüber hinaus kann auf einfache Art und Weise eine ordnungsgemäße Funktion des handgeführten Arbeitsgeräts überprüft werden. Der Benutzer oder Anwender des handgeführten Arbeitsgeräts ist nicht mehr nur auf seinen subjektiven Eindruck im Betrieb des Arbeitsgeräts angewiesen, sondern wird zuverlässig über das Resultat des vorangegangenen Eintreibvorgangs informiert.The object is in a hand-held implement for driving fasteners into a substrate, wherein abruptly Eintreibenergie is delivered to the fasteners, achieved in that the implement comprises a Eintreibenergieinformationseinrichtung, by the information about the driving in a previous drive or at several previous driving operations Eintreibenergie mediated. The information is preferably communicated to a user or user of the hand-held implement. Alternatively or additionally, however, the information can also be transmitted, for example by remote data transmission, from the hand-held implement to an almost arbitrary point outside the hand-held implement. The implement is preferably a hand-held implement for setting bolts operated with fuel gas. Therefore, the implement may also be referred to as a gas powered bolt gun or bolt puller. The fuel gas is supplied to a device-internal combustion chamber in which a combustible mixture is ignited in order to drive a fastener, such as a bolt or a nail, into a substrate. The invention provides the user or user of the hand-held implement in a simple manner suitable for construction sites, which Eintreibenergie, in particular which Eintreibenergiemenge, was submitted by the hand-held implement at least one previous drive-in to the fastener. The information can be used particularly advantageously for assessing the quality of a previous attachment. In addition, can be checked in a simple manner, a proper function of the hand-held implement. The user or user of the hand-held implement is no longer dependent only on his subjective impression in the operation of the implement, but is reliably informed of the result of the previous drive-in process.

Ein bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Eintreibenergieinformationseinrichtung Informationen über Eintreibenergiestufen abgibt. Die bei dem vorangegangenen Eintreibvorgang verwendete Eintreibenergiemenge wird vorteilhaft geräteintern ermittelt und gespeichert. Aus den gespeicherten Werten wird, vorzugsweise auf der Grundlage von definierten Intervallen, eine Energiestufe berechnet. Das Vermitteln der Energiestufe hat sich im Betrieb des Arbeitsgeräts als vorteilhaft erwiesen.A preferred embodiment of the hand-held implement is characterized in that the Eintreibenergieinformationseinrichtung outputs information about Eintreibenergiestufen. The Eintreibenergiemenge used in the previous drive operation is advantageously determined and stored internally device. From the stored values, an energy level is calculated, preferably on the basis of defined intervals. The switching of the energy level has proved to be advantageous in the operation of the working device.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass die Informationsvermittlung der Eintreibenergieinformationseinrichtung optisch, akustisch und/oder haptisch erfolgt. Bei der optischen Informationsvermittlung ist eine Anzeige, vorzugsweise der jeweiligen Energiestufe, gut sichtbar für den Anwender außen an dem Arbeitsgerät angebracht. Bei der akustischen Informationsvermittlung wird dem Anwender, zum Beispiel über unterschiedliche Signaltöne, mitgeteilt, ob eine ausreichende Eintreibenergiemenge an das jeweilige Befestigungselement abgegeben wurde. Bei der haptischen Informationsvermittlung wird dem Anwender, zum Beispiel über unterschiedlich starke Vibrationen, vorzugsweise über einen Handgriff des Arbeitsgeräts, berührend vermittelt, ob die bei dem vorangegangenen Eintreibvorgang abgegebene Energiemenge ausreichend war.A further preferred embodiment of the hand-held implement is characterized in that the information switching of Eintreibenergieinformationseinrichtung optically, acoustically and / or haptically. In the optical information exchange, a display, preferably of the respective energy level, is clearly visible to the user on the outside of the implement. In the case of acoustic information transmission, the user is informed, for example via different signal tones, whether a sufficient amount of driving energy has been delivered to the respective fastening element. In the haptic information transfer the user is, for example via different degrees of vibration, preferably via a handle of the implement, communicating contact, whether the amount of energy delivered in the previous drive operation was sufficient.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass das Arbeitsgerät eine Eintreibenergieinformationsspeichereinrichtung umfasst, durch welche die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie gespeichert werden. Diese Informationen werden vorzugsweise geräteintern zur Ermittlung der Energiestufen genutzt. Alternativ oder zusätzlich können die Informationen auch für die Optimierung der aktuellen Eintreibenergiemenge genutzt werden.A further preferred embodiment of the hand-guided implement is characterized in that the implement comprises a driving energy information storage means by which the information about the driving energy delivered in a preceding driving operation or in several previous driving operations is stored. This information is preferably used internally to determine the energy levels. Alternatively or additionally, the information can also be used for the optimization of the current Einetreibenergiemenge.

Ein weiteres bevorzugtes Ausführungsbeispiel des handgeführten Arbeitsgeräts ist dadurch gekennzeichnet, dass das Arbeitsgerät ein Stellglied umfasst, das, direkt oder indirekt, in einem regelungstechnischen Wirkzusammenhang mit der Eintreibenergieinformationseinrichtung steht, um die bei einem aktuellen Eintreibvorgang abzugebende Eintreibenergiemenge zu steuern beziehungsweise zu regeln. Dabei wird zum Beispiel eine Soll-Eintreibenergiemenge mit einer bei einem vorangegangenen Eintreibvorgang abgegebenen Ist-Eintreibenergiemenge verglichen, um eine Stellgröße zu ermitteln. Die Stellgröße wird dann geräteintern dazu verwendet, um die Abgabe der Eintreibenergie zu optimieren.A further preferred exemplary embodiment of the hand-guided implement is characterized in that the implement comprises an actuator which, directly or indirectly, is in a control-technical operative relationship with the driving energy information device in order to control or regulate the amount of driving energy to be delivered in a current driving operation. In this case, for example, a desired amount of drive-in energy is compared with an actual drive-in amount delivered in a preceding drive operation in order to determine a manipulated variable. The manipulated variable is then used internally to optimize the delivery of the driving energy.

Bei einem Verfahren zum Betreiben eines vorab beschriebenen handgeführten Arbeitsgeräts ist die oben angegebene Aufgabe alternativ oder zusätzlich dadurch gelöst, dass einem Benutzer oder Anwender des Arbeitsgeräts Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie mitgeteilt werden. Durch die Erfindung wird dem Anwender oder Benutzer des handgeführten Arbeitsgeräts auf einfache Art und Weise in Baustellen-tauglicher Form vermittelt, welche Eintreibenergie, insbesondere welche Eintreibenergiemenge, von dem handgeführten Arbeitsgerät bei mindestens einem vorangegangenen Eintreibvorgang an das Befestigungselement abgegeben wurde. Die Information kann besonders vorteilhaft zur Beurteilung der Güte einer vorangegangenen Befestigung verwendet werden. Darüber hinaus kann auf einfache Art und Weise eine ordnungsgemäße Funktion des handgeführten Arbeitsgeräts überprüft werden. Der Benutzer oder Anwender des handgeführten Arbeitsgeräts ist nicht mehr nur auf seinen subjektiven Eindruck im Betrieb des Arbeitsgeräts angewiesen, sondern wird zuverlässig über das Resultat des vorangegangenen Eintreibvorgangs informiert.In a method for operating a hand-held implement described above, the above-mentioned object is alternatively or additionally achieved by informing a user or user of the implement of information about the drive-in energy delivered in a preceding drive operation or in several previous drive-in operations. The invention provides the user or user of the hand-held implement in a simple manner in construction-suitable form, which Eintreibenergie, in particular what Eintreibenergiemenge of the hand-held implement at least one previous drive-in was delivered to the fastener. The information can be used particularly advantageously for assessing the quality of a previous attachment. In addition, can be checked in a simple manner, a proper function of the hand-held implement. The user or user of the hand-held implement is no longer dependent only on his subjective impression in the operation of the implement, but is reliably informed of the result of the previous drive-in process.

Ein bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie dem Benutzer oder Anwender des Arbeitsgeräts optisch, akustisch und/oder haptisch mitgeteilt werden. Bedarfsabhängig können die Informationen optisch und akustisch, optisch und haptisch, akustisch und haptisch, oder optisch, akustisch und haptisch mitgeteilt werden.A preferred embodiment of the method is characterized in that the information about the drive-in energy delivered in a preceding drive-in operation or in the case of several previous drive-in processes is communicated visually, acoustically and / or haptically to the user or user of the implement. Depending on the requirements, the information can be communicated visually and acoustically, optically and haptically, acoustically and haptically, or optically, acoustically and haptically.

Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie geräteintern mit Hilfe mindestens eines Beschleunigungssensors ermittelt und/oder gespeichert werden. Die Informationen können dann geräteintern nicht nur zum Erzeugen der Informationen verwendet werden, sondern darüber hinaus zum Steuern beziehungsweise Regeln der Eintreibenergieabgabe. Die Informationen können bei Bedarf auch per Datenfernübertragung ausgegeben werden.A further preferred exemplary embodiment of the method is characterized in that the information about the driving energy delivered in a preceding driving operation or in the case of several preceding driving operations is determined and / or stored internally with the aid of at least one acceleration sensor. The information can then be used internally not only to generate the information, but also to control the driving energy delivery. If required, the information can also be output via remote data transmission.

Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass aus den Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie Energiestufen ermittelt werden. Die Verwendung der Energiestufen hat sich im Betrieb des handgeführten Arbeitsgeräts als vorteilhaft erwiesen.A further preferred exemplary embodiment of the method is characterized in that energy levels are determined from the information about the driving energy delivered in a preceding driving operation or in the case of several preceding driving operations. The use of the energy levels has proven to be advantageous in the operation of the hand-held implement.

Ein weiteres bevorzugtes Ausführungsbeispiel des Verfahrens ist dadurch gekennzeichnet, dass eine Soll-Eintreibenergiemenge mit einer bei einem vorangegangenen Eintreibvorgang abgegebenen Ist-Eintreibenergiemenge verglichen wird, um eine Stellgröße zu ermitteln. Die Stellgröße kann vorteilhaft geräteintern verwendet werden, um die Abgabe der Eintreibenergie an die Befestigungselemente zu optimieren.A further preferred exemplary embodiment of the method is characterized in that a set amount of drive-in energy is compared with an actual drive-in amount delivered in a preceding drive operation in order to determine a manipulated variable. The manipulated variable can advantageously be used internally in order to optimize the delivery of the driving energy to the fastening elements.

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.

Figur 1
zeigt eine vereinfachte Darstellung eines erfindungsgemäßen Arbeitsgeräts im Schnitt.
Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, various embodiments are described in detail.
FIG. 1
shows a simplified representation of a working device according to the invention in section.

Ausführungsbeispieleembodiments

In Figur 1 ist ein erfindungsgemäßes Arbeitsgerät 1 mit einem Gehäuse 2 stark vereinfacht dargestellt. Das Arbeitsgerät 1 ist als handgeführtes Bolzensetzgerät mit einem Handgriff 4 ausgeführt, an dem das Bolzensetzgerät 1 zum Eintreiben eines Befestigungselements anpackbar ist, das beim Betätigen eines Auslöseschalters 3 an einem Bolzenführungsende 5 aus dem Bolzensetzgerät 1 austritt und in einen Untergrund eintreibbar ist.In FIG. 1 is an inventive implement 1 with a housing 2 shown greatly simplified. The implement 1 is designed as a hand-held bolt setting device with a handle 4 to which the bolt setting device 1 for driving a fastener can be tacked, which emerges on actuation of a trigger switch 3 at a bolt leading end 5 from the bolt setting device 1 and can be driven into a ground.

Die verwendeten Befestigungselemente werden vorzugsweise über ein geräteinternes Magazin 6 bereitgestellt, das in der Nähe des Bolzenführungsendes 5 des Bolzensetzgeräts 1 angebracht ist. Aus dem Magazin 6 werden die Befestigungselemente vorzugsweise einzeln automatisch entnommen und am Bolzenführungsende 5 bereitgestellt.The fasteners used are preferably provided via a device-internal magazine 6, which is mounted in the vicinity of the bolt guide end 5 of the bolt-firing device 1. From the magazine 6, the fasteners are preferably automatically removed individually and provided at the bolt guide end 5.

Die zum Eintreiben der Befestigungselemente in den Untergrund benötigte Energie wird in einem Brennstoffbehälter 8 im Inneren des Bolzensetzgeräts 1 bereitgestellt. Der Brennstoffbehälter 8 enthält vorzugsweise flüssiges Brenngas und wird daher auch als Gasbehälter oder Gaskartusche bezeichnet.The energy required for driving the fastening elements into the ground is provided in a fuel tank 8 in the interior of the bolt setting device 1. The fuel container 8 preferably contains liquid fuel gas and is therefore also referred to as a gas container or gas cartridge.

Der Brennstoffbehälter 8 ist über eine verstellbare beziehungsweise regelbare Dosiereinrichtung 10 und eine Gasleitung 11 mit einer Brennkammer oder einem Brennraum 12 verbindbar. Die Dosiereinrichtung 10 umfasst vorzugsweise ein Dosierventil, über das die dem Brennraum zugeführte Gasmenge, zum Beispiel volumetrisch oder zeitabhängig, gesteuert werden kann.The fuel container 8 is connected via an adjustable or controllable metering device 10 and a gas line 11 with a combustion chamber or a combustion chamber 12. The metering device 10 preferably comprises a metering valve, via which the amount of gas supplied to the combustion chamber, for example, volumetrically or time-dependent, can be controlled.

In dem Brennraum 12 wird Brennstoff, insbesondere Gas, aus dem Brennstoffbehälter 8 mit Luft zu einem brennfähigen Gemisch vermischt, das gezündet wird, um ein Befestigungselement, wie einen Bolzen oder einen Nagel, in den Untergrund einzutreiben. Die zum Eintreiben benötigte Energie wird, zum Beispiel über einen Arbeitskolben 13 von der Brennkammer 12 auf ein Befestigungselement am Bolzenführungsende 5 übertragen.In the combustion chamber 12, fuel, in particular gas, from the fuel container 8 is mixed with air to form a combustible mixture which is ignited to drive a fastener such as a bolt or a nail into the ground. The energy required for driving is transmitted, for example via a working piston 13 of the combustion chamber 12 to a fastener on the bolt guide end 5.

In dem Brennraum 12 ist eine Einrichtung 14 angeordnet, die dazu dient, in dem Brennraum 12 Turbulenz zu erzeugen, den Brennraum 12 zu spülen und/oder zu kühlen. Die Einrichtung 14 umfasst einen Ventilator 15, der von einem Elektromotor 18 angetrieben wird. Der Elektromotor 18 wird über eine elektronische Steuerungseinrichtung 20 angesteuert.In the combustion chamber 12, a device 14 is arranged, which serves to generate turbulence in the combustion chamber 12, to flush the combustion chamber 12 and / or to cool. The device 14 comprises a fan 15, which is driven by an electric motor 18. The electric motor 18 is controlled via an electronic control device 20.

Das auch als Gasgerät bezeichnete Arbeitsgerät 1 umfasst des Weiteren eine elektrische Energiequelle 25, die unter anderem dazu dient, die Steuerungseinrichtung 20 mit Energie zu versorgen. Zu diesem Zweck ist die Steuerungseinrichtung 20 über eine Steuer- und/oder Versorgungsleitung 28 an die elektrische Energiequelle 25 angeschlossen.The working device 1, which is also referred to as a gas appliance, furthermore comprises an electrical energy source 25, which inter alia serves to supply the control device 20 with energy. For this purpose, the control device 20 is connected via a control and / or supply line 28 to the electrical energy source 25.

Die Dosiereinrichtung 10 ist über eine Steuerleitung 30 ebenfalls an die Steuerungseinrichtung 20 angeschlossen. Über eine Signalleitung 33 ist ein Beschleunigungssensor 34 an die Steuerungseinrichtung 20 angeschlossen. Der Beschleunigungssensor 34 kann einen Beschleunigungssensor oder mehrere Beschleunigungssensoren umfassen.The metering device 10 is likewise connected to the control device 20 via a control line 30. Via a signal line 33, an acceleration sensor 34 is connected to the control device 20. The acceleration sensor 34 may include one or more acceleration sensors.

Über eine Steuer- und/oder Versorgungsleitung 35 ist eine Eintreibenergieinformationseinrichtung 40 an die Steuerungseinrichtung 20 angeschlossen. Die Eintreibenergieinformationseinrichtung 40 umfasst ein erstes Sichtfeld 41 und ein zweites Sichtfeld 42.Via a control and / or supply line 35 is a Eintreibenergieinformationseinrichtung 40 connected to the control device 20. The driving energy information device 40 includes a first field of view 41 and a second field of view 42.

Das erste Sichtfeld 41 kann zum Beispiel mit einem Großbuchstaben versehen sein, wie einem E, um darauf hinzuweisen, dass mit Hilfe der Eintreibenergieinformationseinrichtung 40 Informationen über die von dem Arbeitsgerät 1 abgegebene Eintreibenergie angezeigt werden. Das zweite Sichtfeld 42 dient zum Beispiel dazu, mit Hilfe von verschiedenen Leuchtfeldern Energiestufen anzuzeigen, die von der abgegebenen Eintreibenergiemenge abhängen.For example, the first field of view 41 may be capitalized, such as E, to indicate that information about the driving energy output from the implement 1 is displayed using the driving energy information device 40. The second field of view 42 serves, for example, to display energy levels with the aid of different luminous fields, which depend on the amount of drive-in energy emitted.

Die in dem Arbeitsgerät 1, das auch als Bolzensetzgerät oder Bolzenschubgerät bezeichnet wird, zur Verfügung stehende Eintreibenergie ist eine besonders wichtige Größe für den Betrieb des Bolzenschubgeräts. Das gilt insbesondere dann, wenn ein Befestigungspunkt realisiert wird, der bestimmte Mindestauszugskräfte erreichen muss.The driving energy available in the working tool 1, which is also referred to as a bolt-setting device or bolt-pushing device, is a particularly important factor for the operation of the bolt-moving device. This is especially true when an attachment point is realized, which must reach certain minimum extraction forces.

Wesentliche Voraussetzung dafür ist, dass die Eintreibenergie des Geräts so auf das verwendete Befestigungselement abgestimmt wird, dass es ausreichend tief in den Untergrund eingetrieben wird. Gemäß einem Aspekt der Erfindung wird dem Benutzer oder Anwender des Arbeitsgeräts 1 eine zuverlässige Information über die an das jeweilige Befestigungselement abgegebene Eintreibenergie des Arbeitsgeräts 1 übermittelt.The essential prerequisite for this is that the driving energy of the device is matched to the fastener used so that it is sufficiently deep in the Subsoil is driven. According to one aspect of the invention, the user or user of the implement 1 is provided with reliable information about the drive-in energy of the implement 1 delivered to the respective attachment element.

Zum Eintreiben eines Befestigungselements in den Untergrund wird in dem Brennraum 12 des Gasgeräts 1 ein brennbares Gas-Gemisch gezündet, so dass durch die Expansion des Abgases der Arbeitskolben 13 beschleunigt wird. Der Arbeitskolben 13 treibt ein geeignetes Befestigungselement, wie einen Nagel oder Bolzen, in den Untergrund.For driving a fastener into the ground a combustible gas mixture is ignited in the combustion chamber 12 of the gas appliance 1, so that the working piston 13 is accelerated by the expansion of the exhaust gas. The power piston 13 drives a suitable fastener, such as a nail or bolt into the ground.

Der Beschleunigungssensor 34 erfasst während der Arbeitskolbenbewegung die Eigenbeschleunigung des Arbeitsgeräts 1. Ein entsprechendes Beschleunigungssignal wird, zum Beispiel mit Hilfe eines Mikroprozessors, in der Steuerungseinrichtung 20 ausgewertet.The acceleration sensor 34 detects the self-acceleration of the working device 1 during the working-piston movement. A corresponding acceleration signal is evaluated in the control device 20, for example with the aid of a microprocessor.

In der Steuerungseinrichtung 20 wird, vorzugsweise mit Hilfe einer geeigneten Mikroprozessoreinrichtung, die von dem Arbeitsgerät 1 abgegebene Eintreibenergie als kontinuierliche Größe, zum Beispiel in Joule, berechnet. Die berechnete Eintreibenergie und das Messsignal werden elektronisch gespeichert. Auf Grundlage von definierten Intervallen wird daraus eine Energiestufe berechnet.In the control device 20, preferably by means of a suitable microprocessor device, the driving energy delivered by the working device 1 is calculated as a continuous variable, for example in joules. The calculated driving energy and the measuring signal are stored electronically. Based on defined intervals, an energy level is calculated from this.

Die Anzeige der erzielten Energiestufe erfolgt optisch gut ablesbar in dem zweiten Sichtfeld 42 der Eintreibenergieinformationseinrichtung 40. Die Energiestufen können vorteilhaft mit Hilfe LED- oder LCD-Anzeigen dargestellt werden. So können zum Beispiel vier verschiedene Stufen als Balkenanzeige dargestellt werden.The display of the energy level achieved is optically easy to read in the second field of view 42 of the Eintreibenergieinformationseinrichtung 40. The energy levels can be advantageously represented by means of LED or LCD displays. For example, four different levels can be displayed as bar graphs.

Alternativ oder zusätzlich können die erzielten Energiestufen auch akustisch dargestellt werden, zum Beispiel mit Hilfe eines Piezo-Lautsprechers. Dabei können die einzelnen Energiestufen durch verschiedene Anzahlen von Signaltönen dargestellt werden. Die berechnete Eintreibenergie kann des Weiteren vorteilhaft zur Bildung einer Stellgröße verwendet werden, die, zum Beispiel über ein geeignetes Stellenglied, zur Steuerung der Dosiereinrichtung 10 verwendet wird.Alternatively or additionally, the achieved energy levels can also be displayed acoustically, for example with the aid of a piezo loudspeaker. The individual energy levels can be represented by different numbers of signal tones. The calculated driving energy can furthermore advantageously be used to form a manipulated variable which is used, for example via a suitable position member, for controlling the metering device 10.

Die Erfindung liefert unter anderem die folgenden Vorteile. Nach jeder Befestigung mit dem Arbeitsgerät 1 erfährt der Anwender präzise die erzielte Eintreibenergie und kann so die Güte der Befestigung und die ordnungsgemäße Funktion des Gasgeräts 1 beurteilen. Der Anwender ist nicht mehr nur auf seinen subjektiven Eindruck angewiesen, sondern wird anhand einer präzisen Messung zuverlässig über das Ergebnis eines vorangegangenen Setzvorgangs informiert.The invention provides, inter alia, the following advantages. After each attachment with the implement 1, the user learns precisely the driving energy obtained and can thus assess the quality of the attachment and the proper operation of the gas appliance 1. The user is no longer dependent on his subjective impression, but will reliably informed about the result of a previous setting process on the basis of a precise measurement.

Das Arbeitsgerät 1 kann auf einfache Art und Weise automatisch für eine optimale Befestigung eingestellt werden. Die Speicherung der ermittelten Energiewerte erlaubt zusätzlich eine Diagnose der Geräteleistung im Wartungs- und/oder Reparaturfall. Die Datenübertragung an ein außerhalb gelegenes Speichersystem kann vorteilhaft zur systematischen Analyse von erzielten Geräteenergien verwendet werden. Darüber hinaus können die übertragenen Daten einem Gerätehersteller zur Optimierung in der Geräteentwicklung dienen.The implement 1 can be adjusted automatically for optimal attachment in a simple manner. The storage of the determined energy values additionally allows a diagnosis of the device performance in the case of maintenance and / or repair. The data transfer to an external storage system can advantageously be used for the systematic analysis of achieved device energies. In addition, the transmitted data can be used by a device manufacturer to optimize device development.

Claims (10)

Handgeführtes Arbeitsgerät (1) zum Eintreiben von Befestigungselementen in einen Untergrund, wobei schlagartig Eintreibenergie an die Befestigungselemente abgegeben wird, dadurch gekennzeichnet, dass das Arbeitsgerät (1) eine Eintreibenergieinformationseinrichtung (40) umfasst, durch die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie vermittelt werden.Hand-guided implement (1) for driving fasteners into a substrate, wherein abruptly driving energy is delivered to the fasteners, characterized in that the implement (1) comprises a Eintreibenergieinformationseinrichtung (40), by the information about the in a previous driving operation or at several previous drive-in given Eintreibenergie be taught. Handgeführtes Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Eintreibenergieinformationseinrichtung (40) Informationen über Eintreibenergiestufen abgibt.Hand-guided implement according to claim 1, characterized in that the Eintreibenergieinformationseinrichtung (40) outputs information about Eintreibenergiestufen. Handgeführtes Arbeitsgerät nach Anspruch 2, dadurch gekennzeichnet, dass die Informationsvermittlung der Eintreibenergieinformationseinrichtung (40) optisch, akustisch und/oder haptisch erfolgt.Hand-guided implement according to claim 2, characterized in that the information transmission of the Eintreibenergieinformationseinrichtung (40) takes place optically, acoustically and / or haptically. Handgeführtes Arbeitsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Arbeitsgerät (1) eine Eintreibenergieinformationsspeichereinrichtung umfasst, durch welche die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie gespeichert werden.Hand-held implement according to one of the preceding claims, characterized in that the working device (1) comprises a driving energy information storage device, by which the information about the drive-in energy delivered in a preceding driving operation or in several previous driving operations are stored. Handgeführtes Arbeitsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Arbeitsgerät (1) ein Stellglied umfasst, das, direkt oder indirekt, in einem regelungstechnischen Wirkzusammenhang mit der Eintreibenergieinformationseinrichtung (40) steht, um die bei einem aktuellen Eintreibvorgang abzugebende Eintreibenergiemenge zu steuern beziehungsweise zu regeln.Hand-held implement according to one of the preceding claims, characterized in that the working device (1) comprises an actuator which, directly or indirectly, in a control-technical operative relationship with the Eintreibenergieinformationseinrichtung (40) to control the to be delivered at a current driving operation Eintreibenergiemenge or to regulate. Verfahren zum Betreiben eines handgeführten Arbeitsgeräts nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass einem Benutzer oder Anwender des Arbeitsgeräts (1) Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie mitgeteilt werden.Method for operating a hand-held implement according to one of the preceding claims, characterized in that a user or user of the implement (1) information about the at a previous Drive-in or given in several previous drive-in driving energy. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie dem Benutzer oder Anwender des Arbeitsgeräts (1) optisch, akustisch und/oder haptisch mitgeteilt werden.Method according to Claim 6, characterized in that the information about the driving energy delivered during a preceding driving operation or during several previous driving operations is communicated visually, acoustically and / or haptically to the user or user of the working device (1). Verfahren nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie geräteintern mit Hilfe mindestens eines Beschleunigungssensors (34) ermittelt und/oder gespeichert werden.Method according to claim 6 or 7, characterized in that the information about the driving energy delivered during a preceding driving operation or during several previous driving operations is determined and / or stored inside the device with the aid of at least one acceleration sensor (34). Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass aus den Informationen über die bei einem vorangegangenen Eintreibvorgang oder bei mehreren vorangegangenen Eintreibvorgängen abgegebene Eintreibenergie Energiestufen ermittelt werden.Method according to Claim 8, characterized in that energy levels are determined from the information about the driving energy delivered in a preceding driving operation or in the case of several preceding driving operations. Verfahren nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass eine Soll-Eintreibenergiemenge mit einer bei einem vorangegangenen Eintreibvorgang abgegebenen Ist-Eintreibenergiemenge verglichen wird, um eine Stellgröße zu ermitteln.Method according to one of claims 6 to 9, characterized in that a desired Eintreibenergiemenge is compared with an output in a previous driving operation Actual Einertergiemenge to determine a manipulated variable.
EP13163904.9A 2012-04-25 2013-04-16 Handheld work tool and method for operating a hand-held tool Revoked EP2656974B1 (en)

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CN103374913A (en) 2013-10-30
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EP2656974B1 (en) 2017-05-17
TWI604928B (en) 2017-11-11
CA2810976A1 (en) 2013-10-25
US20130284788A1 (en) 2013-10-31
DE102012206761A1 (en) 2013-10-31
CA2810976C (en) 2021-03-16

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