EP2885110B1 - Fastener driving tool with safety lock - Google Patents
Fastener driving tool with safety lock Download PDFInfo
- Publication number
- EP2885110B1 EP2885110B1 EP13750302.5A EP13750302A EP2885110B1 EP 2885110 B1 EP2885110 B1 EP 2885110B1 EP 13750302 A EP13750302 A EP 13750302A EP 2885110 B1 EP2885110 B1 EP 2885110B1
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- EP
- European Patent Office
- Prior art keywords
- driving tool
- slide
- drive
- locking member
- tool according
- Prior art date
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- 238000012546 transfer Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/008—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 tacker according to the preamble of claim 1.
- DE 100 32 310 A1 describes a driven with fuel gas tacker, in which a position of a Eintreibkolbens for function control by means of a Tastgliedes is interrogated.
- EP 2 199 027 A1 describes a hand-held tacker, in which a drive-in ram is held by a pawl of a locking device.
- a fastener according to the invention is understood to mean any retractable nail, bolt, pin or even a clamp or screw.
- the fastening device is electrically driven and hand-guided.
- the drive may preferably have an electrical energy storage in the manner of a rechargeable battery to be operated wirelessly.
- the energy transmission element may be formed in any manner known by tacking devices.
- it can be a spring-loaded piston as a power transmission element, which can be tensioned by a drive device comprising a rotatable spindle.
- the spring may be formed as a metal or plastic spring or as a gas spring.
- usually a tensioning of the spring by turning the spindle by means of e.g. electric motor up to a cocked state. After a release, the piston is accelerated by the spring, so that the piston meets the fastener and this rubs into a workpiece.
- a reset of the piston in an initial position can be done subsequently by further rotation of the spindle, depending on the design of the mechanism, the direction of rotation may be reversed.
- the energy transmission element is initially subjected to a kinetic energy by means of an energy source, wherein it subsequently transfers this to the fastening element in order to drive it into a workpiece.
- a driving member of the energy transmission element is understood to mean that part which acts directly on the fastening element in order to accelerate it.
- the drive member is often, but not necessarily, a plunger.
- the plunger is usually formed as a front part of a driven piston or other component of the energy transfer element.
- the blocking member can be arranged to block directly in a travel path of the drive member or in a travel path of another part of the energy transfer element. It is essential that an acceleration of the fastener is basically prevented.
- each element is to be understood, which serves to determine a proper operating state. It can be a mechanical feeler, an electromechanical component, a safety switch to be actuated, a light barrier or the like.
- a sensor member in the sense of the invention is understood to mean a device by means of which a proper application or pressing of the tacker on a workpiece can be determined in order to prevent an uncontrolled escape of the fastener from the tacker.
- a further safety device is provided on the tacker in addition to the locking member, wherein the triggering of a driving operation is prevented by means of the further safety device.
- the further safety device In contrast to the function of the locking member is blocked by the further safety device only triggering.
- Such safety devices are known in many designs. A criterion for activating the further safety device can deviate from the operating state for releasing the blocking element or can also be the same criterion.
- An essential difference between the further safety device and the function of the locking member is that by the locking member energy transfer to the fastener is basically prevented. The locking member is therefore effective even if fail by manipulation, wear, breakage, exposure to water, ice or other unforeseen circumstances further safety devices.
- an inventive locking member therefore provided in addition to the safety device, so that a total of a particularly high security is achieved.
- the safety is ensured exclusively by the locking member and without further safety device.
- the locking member is expediently designed so that it can intercept the energy transmission element repeatedly, without causing relevant components damage or fatigue.
- the sensor member comprises a pressure member in a front region of the tacker, wherein the pressure member is supported against a workpiece for releasing the driving operation.
- a pressure member may be formed, for example, as a retractable sleeve-shaped mouth channel, as a retractable feeler pin or the like.
- the locking member comprises in a generally advantageous embodiment, a movable slide, wherein the slider is disposed in a locking position between the driving member and the fastening element, and wherein the slider in a release position releases a travel of the driving member against the fastening member.
- the positioning between the drive member and the fastener causes the fuse in a particularly effective manner.
- the locking member is preferably made of a formed stable material and therefore particularly suitable to absorb the kinetic energy of the drive member or the piston. In addition, this results in an arrangement of the locking member in a front region of the tacker, so that in particular a mechanical control of the slider is easily feasible.
- the slider is connected via a mechanism with a pressure member, wherein a pressing of the pressure member against a workpiece moves the slider in the release position.
- the pressure member can also control one or more other safety devices of the tacker depending on the requirements.
- the slide can be designed as a rotary valve.
- the slide can also be designed as a linear slide.
- an electric motor is present as the drive source.
- another drive form such as fuel gas or compressed air can be selected.
- the drive-in device according to the invention Fig. 1 comprises a hand-held housing 1, in which a power transmission element 2 is received with a drive device 7.
- a power transmission element 2 is received with a drive device 7.
- the energy transmission element 2 comprises a linearly guided piston with a drive member 4 in the form of a substantially cylindrical plunger made of particularly low-wear material.
- a damped stop 6 in a front component 5 of the tacker is a damped stop 6 (see Fig. 3c ) arranged for the piston.
- Fasteners 8 (see Fig. 5c . Fig. 10 ) are recorded in a magazine 9.
- a fastener is in each case transported into a chamber 10 of the component 5, from where it accelerated by the action of the drive member 4 and is driven through a sleeve-shaped mouth part 11 into a workpiece (not shown).
- the drive device 7 in the present case comprises an electric motor 7a, a gear 7b with adjoining rotary spindle (not shown) and a spring member 7c for intermediate storage of mechanical energy, whose end is received in a spring receptacle 3.
- a tensioning of the spring member 7c and a return of the piston takes place in a starting position in a known manner. In this operating state, a triggering of the driving operation can take place, if further safety criteria are met.
- a locking member 12 is arranged, wherein the locking member is a locking arrangement (see Fig. 2 up to Fig. Fig. 3c . Fig. 6 . Fig. 7 . Fig. 10 ) or a releasing arrangement (see, for example Fig. 4 to Fig. 5c . Fig. 8 . Fig. 9 ).
- the locking member each comprises a slider 13, which may be formed depending on the embodiment shown as a linear slide or a rotary valve. If a release of the tacker in the locked state of the locking member 12 should take place, the driving member 4 would hit against the slider 13 of the locking member 12 and thereby stopped in his path. The kinetic energy of the energy transmission element is intercepted and not directed to the fastener.
- the present tacker also has other safety devices (not shown), by the triggering of the device is prevented in a non-operational state. If, for reasons of malfunction or manipulation, nevertheless triggering take place, then the blocking member 12 would act as an additional safeguard, which immediately prevents energy transfer to the fastening element.
- the further safety devices may be of a purely mechanical nature or may also have electrical switches, such as contacts, photocells or the like.
- an operational state for driving in the fastening element 8 is only present when the mouth part 11 is pressed against a workpiece.
- the mouth part 11 has an insertability about a stroke along its longitudinal direction or in the driving direction.
- the mouth part 11 is coupled to a pressing rod 14, which is supported against a spring 14a.
- the spring-loaded, insertable mouth part 11 therefore forms a pressing member and a sensor member according to the invention.
- the pressing rod 14 is also mechanically connected to the locking member 12, so that at the same time the slide 13 of the locking member 12 is actuated by the stroke of the pressing rod 14.
- the slider 13 is formed as a rotary valve 13a.
- This comprises a cylindrical roller 15 with a lateral recess 16 in the form of a cylinder segment.
- the slider 13a partially covers a passage opening 17 for the drive member 4, so that the drive member would strike against the slider.
- the release position covers the passage opening 17 with the recess 16 so that it is completely free. Trained as a rotary valve slide 13a is rotated by a rotary lever 18, with which the pressure bar 14 is pivotally connected.
- the slider 13 is formed as a linear slide 13b.
- the slide 13b protrudes in a locked state from the side into the passage opening 17 and blocks it (see Fig. 7 ).
- the slider 13b is retracted by a stroke against the force of a spring (not shown), so that a recess 19 of the slider 13b covered with the passage opening 17 and this releases.
- the releasing movement of the linear slider 13b becomes controlled via a pivotally connected to the device 5 pivoting lever 20, wherein the pivot lever 20 is in turn formed as part of a coupled mechanism with the pressure bar 14 and the mouth part 11.
- Fig. 10 shows a schematic representation of another embodiment of a linear slider 13, 13c. This is not formed exactly linearly displaceable, but is pivoted about a hinge 21, wherein a pin 22 of the slider 13c in the passage opening 17 on or pivots out.
- Fig. 11 shows a schematic representation of the principle of the linear slide FIG. 6 to FIG. 9 .
- Fig. 12 shows a schematic representation of a rotary valve in the closed and open state, wherein the rotary valve 13 is formed as a cylindrical roller with a central, directed perpendicular to the cylinder axis bore 23. With appropriate orientation, the bore 23, the passage opening 17 is free.
- Fig. 13 schematically shows a modification of such a rotary valve with non-central recess, which according to the embodiment Fig. 1 to Fig. 5c equivalent.
Description
Die Erfindung betrifft ein Eintreibgerät nach dem Oberbegriff des Anspruchs 1.The invention relates to a tacker according to the preamble of
Es ist die Aufgabe der Erfindung, ein Eintreibgerät anzugeben, das eine hohe Betriebssicherheit aufweist.It is the object of the invention to provide a tacker that has a high reliability.
Diese Aufgabe wird für eine eingangs genannte Eintreibvorrichtung erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch das Vorsehen eines Sperrgliedes in dem Weg des Energieübertragungselements wird eine ungewollte oder nicht betriebsgemäße Beaufschlagung des Befestigungselements unmittelbar verhindert. Das Abfangen des Energieübertragungselementes verhindert in einem solchen Fall ein Einwirken auf das Befestigungselement. Je nach Auslegung kann dabei ein erheblicher Anteil oder auch eine vollständige Bewegungsenergie durch das Sperrglied abgefangen werden, die andernfalls auf das Befestigungselement übertragen würde.This object is achieved according to the invention for a drive-in device mentioned above with the characterizing features of
Unter einem Befestigungselement im Sinne der Erfindung wird dabei jeder eintreibbare Nagel, Bolzen, Stift oder auch eine Klammer oder Schraube verstanden. Die Befestigungsvorrichtung ist elektrisch angetrieben und handgeführt. Der Antrieb kann bevorzugt über einen elektrischen Energiespeicher nach Art eines Akkumulators verfügen, um kabellos betrieben zu werden.A fastener according to the invention is understood to mean any retractable nail, bolt, pin or even a clamp or screw. The fastening device is electrically driven and hand-guided. The drive may preferably have an electrical energy storage in the manner of a rechargeable battery to be operated wirelessly.
Das Energieübertragungselement kann auf beliebige, von Eintreibgeräten bekannte Weise ausgebildet sein. Zum Beispiel kann es sich um einen federbelasteten Kolben als Energieübertragungselement handeln, das von einer eine drehbare Spindel umfassende Antriebsvorrichtung spannbar ist. Die Feder kann als Metall- oder Kunststofffeder oder auch als Gasfeder ausgebildet sein. Bei solchen Geräten erfolgt meist ein Spannen der Feder durch Drehen der Spindel mittels eines z.B. elektrischen Motors bis zu einem gespannten Zustand. Nach einem Auslösen wird der Kolben durch die Feder beschleunigt, so dass der Kolben auf das Befestigungselement trifft und dieses in ein Werkstück einreibt. Ein Rückstellen des Kolbens in eine Ausgangsposition kann nachfolgend durch weitere Drehung der Spindel erfolgen, wobei je nach Auslegung der Mechanik die Drehrichtung umgekehrt sein kann. Andere unter die Erfindung fallende Ausführungsformen können zum Beispiel brenngasbetriebene oder druckluftbetriebene Eintreibgeräte umfassen. Bei allen Ausführungsformen wird dabei das Energieübertragungselement mittels einer Energiequelle zunächst mit einer Bewegungsenergie beaufschlagt, wobei es diese nachfolgend auf das Befestigungselement überträgt, um es in ein Werkstück einzutreiben.The energy transmission element may be formed in any manner known by tacking devices. For example, it can be a spring-loaded piston as a power transmission element, which can be tensioned by a drive device comprising a rotatable spindle. The spring may be formed as a metal or plastic spring or as a gas spring. In such devices, usually a tensioning of the spring by turning the spindle by means of e.g. electric motor up to a cocked state. After a release, the piston is accelerated by the spring, so that the piston meets the fastener and this rubs into a workpiece. A reset of the piston in an initial position can be done subsequently by further rotation of the spindle, depending on the design of the mechanism, the direction of rotation may be reversed. Other embodiments covered by the invention may include, for example, gas powered or air driven tackers. In all embodiments, the energy transmission element is initially subjected to a kinetic energy by means of an energy source, wherein it subsequently transfers this to the fastening element in order to drive it into a workpiece.
Unter einem Treibglied des Energieübertragungselements wird im Sinne der Erfindung derjenige Teil verstanden, der unmittelbar auf das Befestigungselement einwirkt, um dieses zu beschleunigen. Bei dem Treibglied handelt es sich häufig, aber nicht notwendig, um einen Stößel. Der Stößel ist meist als vorderes Teil eines antreibbaren Kolbens oder einer sonstigen Komponente des Energieübertragungselements ausgebildet. Grundsätzlich kann das Sperrglied unmittelbar in einem Verfahrweg des Treibgliedes oder auch in einem Verfahrweg eines anderen Teils des Energieübertragungselementes sperrend angeordnet sein. Wesentlich ist dabei, dass eine Beschleunigung des Befestigungselementes grundsätzlich verhindert wird.In the sense of the invention, a driving member of the energy transmission element is understood to mean that part which acts directly on the fastening element in order to accelerate it. The drive member is often, but not necessarily, a plunger. The plunger is usually formed as a front part of a driven piston or other component of the energy transfer element. In principle, the blocking member can be arranged to block directly in a travel path of the drive member or in a travel path of another part of the energy transfer element. It is essential that an acceleration of the fastener is basically prevented.
Unter einem Sensorglied im Sinne der Erfindung ist jedes Element zu verstehen, das zur Feststellung eines betriebsgemäßen Zustandes dient. Es kann sich um ein mechanisches Tastglied handeln, um ein elektromechanisches Bauteil, ein zu betätigender Sicherheitsschalter, eine Lichtschranke oder Ähnliches. Insbesondere wird unter einem Sensorglied im Sinne der Erfindung eine Vorrichtung verstanden, mittels der ein ordnungsgemäßes Anlegen oder Andrücken des Eintreibgerätes an ein Werkstück feststellbar ist, um einen unkontrollierten Austritt des Befestigungselements aus dem Eintreibgerät zu verhindern.Under a sensor member in the context of the invention, each element is to be understood, which serves to determine a proper operating state. It can be a mechanical feeler, an electromechanical component, a safety switch to be actuated, a light barrier or the like. In particular, a sensor member in the sense of the invention is understood to mean a device by means of which a proper application or pressing of the tacker on a workpiece can be determined in order to prevent an uncontrolled escape of the fastener from the tacker.
Bei einer besonders bevorzugten Ausführungsform der Erfindung ist zusätzlich zu dem Sperrglied eine weitere Sicherheitseinrichtung an dem Eintreibgerät vorgesehen, wobei das Auslösen eines Eintreibvorgangs mittels der weiteren Sicherheitseinrichtung verhindert ist. Im Unterschied zu der Funktion des Sperrgliedes wird durch die weitere Sicherheitseinrichtung lediglich ein Auslösen blockiert. Solche Sicherheitseinrichtungen sind in vielen Bauarten bekannt. Ein Kriterium zur Aktivierung der weiteren Sicherheitseinrichtung kann von dem betriebsgemäßen Zustand zur Freigabe des Sperrgliedes abweichen oder auch dasselbe Kriterium sein. Ein wesentlicher Unterschied zwischen der weiteren Sicherheitseinrichtung und der Funktion des Sperrglieds besteht darin, dass durch das Sperrglied eine Energieübertragung auf das Befestigungselement grundsätzlich verhinderbar ist. Das Sperrglied ist daher auch dann wirksam, wenn durch Manipulationen, Verschleiß, Bruch, Einwirkung von Wasser, Eis oder sonstige unvorhergesehene Umstände weitere Sicherheitseinrichtungen ausfallen.In a particularly preferred embodiment of the invention, a further safety device is provided on the tacker in addition to the locking member, wherein the triggering of a driving operation is prevented by means of the further safety device. In contrast to the function of the locking member is blocked by the further safety device only triggering. Such safety devices are known in many designs. A criterion for activating the further safety device can deviate from the operating state for releasing the blocking element or can also be the same criterion. An essential difference between the further safety device and the function of the locking member is that by the locking member energy transfer to the fastener is basically prevented. The locking member is therefore effective even if fail by manipulation, wear, breakage, exposure to water, ice or other unforeseen circumstances further safety devices.
Besonders bevorzugt ist ein erfindungsgemäßes Sperrglied daher ergänzend zu der Sicherheitseinrichtung vorgesehen, so dass insgesamt eine besonders hohe Sicherheit erzielt wird. Grundsätzlich kann aber auch vorgesehen sein, dass die Sicherheit ausschließlich durch das Sperrglied und ohne weitere Sicherheitseinrichtung gewährleistet wird. In einem solchen Fall ist das Sperrglied zweckmäßig so auszulegen, dass es auch wiederholt das Energieübertragungselement abfangen kann, ohne dass relevante Bauteile hierdurch Schaden nehmen oder ermüden.Particularly preferred is an inventive locking member therefore provided in addition to the safety device, so that a total of a particularly high security is achieved. In principle, however, it can also be provided that the safety is ensured exclusively by the locking member and without further safety device. In such a case, the locking member is expediently designed so that it can intercept the energy transmission element repeatedly, without causing relevant components damage or fatigue.
Bei einer allgemein bevorzugten Ausführungsform der Erfindung umfasst das Sensorglied ein Andruckglied in einem vorderen Bereich des Eintreibgerätes, wobei das Andruckglied zur Freigabe des Eintreibvorganges gegen ein Werkstück abgestützt ist. Ein solches Andruckglied kann zum Beispiel als einschiebbarer hülsenförmiger Mündungskanal, als einschiebbarer Tastbolzen oder Ähnliches ausgebildet sein.In a generally preferred embodiment of the invention, the sensor member comprises a pressure member in a front region of the tacker, wherein the pressure member is supported against a workpiece for releasing the driving operation. Such a pressure member may be formed, for example, as a retractable sleeve-shaped mouth channel, as a retractable feeler pin or the like.
Das Sperrglied umfasst bei einer allgemein vorteilhaften Ausführungsform einen beweglichen Schieber, wobei der Schieber in einer Sperrstellung zwischen dem Treibglied und dem Befestigungselement angeordnet ist, und wobei der Schieber in einer Freigabestellung einen Verfahrweg des Treibgliedes gegen das Befestigungsglied freigibt. Die Positionierung zwischen dem Treibglied und dem Befestigungselement bewirkt die Sicherung auf besonders effektive Weise. Das Sperrglied ist vorzugsweise aus einem stabilen Material ausgebildet und daher besonders geeignet, die Bewegungsenergie des Treibglieds beziehungsweise des Kolbens abzufangen. Zudem besteht hierdurch eine Anordnung des Sperrglieds in einem vorderen Bereich des Eintreibgerätes, so dass insbesondere eine mechanische Ansteuerung des Schiebers leicht realisierbar ist.The locking member comprises in a generally advantageous embodiment, a movable slide, wherein the slider is disposed in a locking position between the driving member and the fastening element, and wherein the slider in a release position releases a travel of the driving member against the fastening member. The positioning between the drive member and the fastener causes the fuse in a particularly effective manner. The locking member is preferably made of a formed stable material and therefore particularly suitable to absorb the kinetic energy of the drive member or the piston. In addition, this results in an arrangement of the locking member in a front region of the tacker, so that in particular a mechanical control of the slider is easily feasible.
Bei einer besonders bevorzugten Weiterbildung ist dabei der Schieber über eine Mechanik mit einem Andruckglied verbunden, wobei ein Andrücken des Andruckgliedes gegen ein Werkstück den Schieber in die Freigabestellung bewegt. Das Andruckglied kann je nach Anforderungen zudem eine oder mehrere weitere Sicherheitseinrichtungen des Eintreibgerätes ansteuern. Durch den Vorgang des Andrückens gegen ein Werkstück ist auf einfache und effektive Weise der betriebsgemäße Zustand des Eintreibgerätes hergestellt.In a particularly preferred development of the slider is connected via a mechanism with a pressure member, wherein a pressing of the pressure member against a workpiece moves the slider in the release position. The pressure member can also control one or more other safety devices of the tacker depending on the requirements. By the process of pressing against a workpiece is produced in a simple and effective manner, the operating state of the tacker.
Bei einer einfachen und zweckmäßigen Realisierung einer Ansteuerung ist dabei das Sperrglied mittels einer Anpressstange mit dem Andruckglied verbunden.In a simple and expedient realization of a drive while the locking member is connected by means of a pressing bar with the pressure member.
Bei einer ersten möglichen Detailgestaltung kann der Schieber als ein Drehschieber ausgebildet sein. Bei einer hierzu alternaiven Ausgestaltung kann der Schieber auch als ein linearer Schieber ausgebildet sein.In a first possible detail design of the slide can be designed as a rotary valve. In an alternative embodiment, the slide can also be designed as a linear slide.
Bei einer bevorzugten, aber nicht notwendigen Bauform eines Eintreibgerätes liegt ein elektrischer Motor als Antriebsquelle vor. Alternativ hierzu kann aber auch eine andere Antriebsform wie etwa Brenngas oder Druckluft gewählt sein.In a preferred, but not necessary design of a tacker, an electric motor is present as the drive source. Alternatively, however, another drive form such as fuel gas or compressed air can be selected.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ausführungsbeispielen sowie aus den abhängigen Ansprüchen. Nachfolgend werden mehrere bevorzugte Ausführungsbeispiele der Erfindung beschrieben und anhand der anliegenden Zeichnungen näher erläutert.
- Fig. 1
- zeigt eine seitliche, teilweise aufgeschnittene Gesamtansicht eines erfindungsgemäßen Eintreibgerätes.
- Fig. 2
- zeigt ein Bauelement des Gerätes aus
Fig. 1 mit einem Sperrglied als Drehschieber in räumlicher Ansicht in einem nicht angepressten Zustand. - Fig. 3a
- zeigt das Bauelement aus
Fig. 2 in einer seitlichen Draufsicht mit einer Schnittansicht entlang der Linie A-A.. - Fig. 3b
- zeigt das Bauelement aus
Fig. 2 in einer weiteren seitlichen Draufsicht. - Fig. 3c
- zeigt eine Schnittansicht des Bauelements aus
Fig. 3b entlang der Linie A-A. - Fig. 4
- zeigt das Bauelement aus
Fig. 2 in räumlicher Ansicht in einem angepressten Zustand. - Fig. 5a
- zeigt das Bauelement aus
Fig. 4 in einer seitlichen Draufsicht mit einer Schnittansicht entlang der Linie A-A.. - Fig. 5b
- zeigt das Bauelement aus
Fig. 4 in einer weiteren seitlichen Draufsicht. - Fig. 5c
- zeigt eine Schnittansicht des Bauelements aus
Fig. 5b entlang der Linie A-A. - Fig. 6
- zeigt eine weitere Ausführungsform des Bauelementes aus
Fig. 2 mit einem linearen Schieber als Sperrglied in einem nicht angepressten Zustand. - Fig. 7
- zeigt das Bauelement aus
Fig. 6 in zwei seitlichen Draufsichten und einer Schnittansicht entlang der Linie A-A. - Fig. 8
- zeigt eine räumliche Ansicht des Bauelements aus
Fig. 6 in einem angepressten Zustand. - Fig. 9
- zeigt das Bauelement aus
Fig. 7 in zwei seitlichen Draufsichten und einer Schnittansicht entlang der Linie A-A. - Fig. 10
- zeigt eine schematische Darstellung eines Sperrglieds mit einem linearen, verschwenkbaren Schieber.
- Fig. 11
- zeigt eine schematische Darstellung eines Sperrglieds mit einem linearen, vierschiebbaren Schieber.
- Fig. 12
- zeigt eine schematische Darstellung eines Sperrglieds mit einem Drehschieber in offner und geschlossener Stellung.
- Fig. 13
- zeigt eine Abwandlung des Drehschiebers aus
Fig. 12 .
- Fig. 1
- shows a side, partially cutaway overall view of a tacker according to the invention.
- Fig. 2
- shows a component of the device
Fig. 1 with a locking member as a rotary valve in a spatial view in a non-pressed state. - Fig. 3a
- shows the device
Fig. 2 in a side plan view with a sectional view along the line AA .. - Fig. 3b
- shows the device
Fig. 2 in a further lateral plan view. - Fig. 3c
- shows a sectional view of the device
Fig. 3b along the line AA. - Fig. 4
- shows the device
Fig. 2 in a spatial view in a pressed state. - Fig. 5a
- shows the device
Fig. 4 in a side plan view with a sectional view along the line AA .. - Fig. 5b
- shows the device
Fig. 4 in a further lateral plan view. - Fig. 5c
- shows a sectional view of the device
Fig. 5b along the line AA. - Fig. 6
- shows a further embodiment of the device
Fig. 2 with a linear slider as a locking member in a non-pressed state. - Fig. 7
- shows the device
Fig. 6 in two lateral plan views and a sectional view along the line AA. - Fig. 8
- shows a spatial view of the device
Fig. 6 in a pressed state. - Fig. 9
- shows the device
Fig. 7 in two lateral plan views and a sectional view along the line AA. - Fig. 10
- shows a schematic representation of a locking member with a linear, pivotable slide.
- Fig. 11
- shows a schematic representation of a locking member with a linear, four-slide valve.
- Fig. 12
- shows a schematic representation of a locking member with a rotary valve in the open and closed positions.
- Fig. 13
- shows a modification of the rotary valve
Fig. 12 ,
Das erfindungsgemäße Eintreibgerät aus
Befestigungselemente 8 (siehe
Die Antriebseinrichtung 7 umfasst vorliegend einen Elektromotor 7a, ein Getriebe 7b mit daran anschließender Drehspindel (nicht dargestellt) und ein Federglied 7c zur Zwischenspeicherung von mechanischer Energie, dessen Ende in einer Federaufnahme 3 aufgenommen ist. Vor einem Auslösen eines Eintreibvorgangs erfolgt ein Spannen des Federglieds 7c und ein Rückstellen des Kolbens in eine Ausgangsposition auf bekannte Weise. In diesem Betriebszustand kann ein Auslösen des Eintreibvorgangs erfolgen, sofern weitere Sicherheitskriterien erfüllt sind.The
Nach einem Auslösen des Eintreibvorgangs beschleunigt das Federglied 7c den Kolben des Energieübertragungselements 2 in Richtung des Anschlags 6. Dabei wird das Treibglied 4 gegen das Befestigungselement 8 geschlagen, so dass dieses in das Werkstück eingetrieben wird.After triggering the driving operation accelerates the
In einem dabei von dem Treibglied 4 überfahrenen Weg ist ein Sperrglied 12 angeordnet, wobei das Sperrglied eine sperrende Anordnung (siehe etwa
Das Sperrglied umfasst jeweils einen Schieber 13, der je nach gezeigter Ausführungsform als linearer Schieber oder als Drehschieber ausgebildet sein kann. Falls ein Auslösen des Eintreibgerätes im gesperrten Zustand des Sperrglieds 12 erfolgen sollte, so würde das Treibglied 4 gegen den Schieber 13 des Sperrglieds 12 treffen und hierdurch in seinem Weg aufgehalten. Dabei wird die Bewegungsenergie des Energieübertragungselementes abgefangen und nicht auf das Befestigungselement geleitet.The locking member each comprises a
Das vorliegende Eintreibgerät weist zudem weitere Sicherheitseinrichtungen (nicht dargestellt) auf, durch die ein Auslösen des Gerätes in einem nicht betriebsgemäßen Zustand verhindert wird. Sollte aus Gründen einer Funktionsstörung oder einer Manipulation dennoch ein Auslösen erfolgen, so würde das Sperrglied 12 als zusätzliche Sicherung greifen, die eine Energieübertragung auf das Befestigungselement unmittelbar verhindert.The present tacker also has other safety devices (not shown), by the triggering of the device is prevented in a non-operational state. If, for reasons of malfunction or manipulation, nevertheless triggering take place, then the blocking
Die weiteren Sicherheitseinrichtungen können rein mechanischer Natur sein oder auch elektrische Schalter wie etwa Kontakte, Photozellen oder Ähnliches aufweisen. Im vorliegenden Fall liegt ein betriebsgemäßer Zustand zum Eintreiben des Befestigungselementes 8 nur dann vor, wenn das Mündungsteil 11 gegen ein Werkstück angedrückt ist. Hierzu weist das Mündungsteil 11 eine Einschiebbarkeit um einen Hub entlang seiner Längsrichtung bzw. in der Eintreibrichtung auf. Das Mündungsteil 11 ist mit einer Anpressstange 14 gekoppelt, die gegen eine Feder 14a abgestützt ist. So werden bei einem Absetzen des Gerätes die Anpressstange 14 und das Mündungsteil 11 wieder zurückgeschoben, und das Gerät wird gegen ein Auslösen des Eintreibvorgangs gesichert. Das federbelastete, einschiebbare Mündungsteil 11 bildet daher ein Andruckglied und ein Sensorglied im Sinne der Erfindung aus.The further safety devices may be of a purely mechanical nature or may also have electrical switches, such as contacts, photocells or the like. In the present case, an operational state for driving in the
Die Anpressstange 14 ist zudem mechanisch mit dem Sperrglied 12 verbunden, so dass durch den Hub der Anpressstange 14 zugleich der Schieber 13 des Sperrglieds 12 betätigt wird.The
Die einzelnen konkreten Ausführungsbeispiele der Erfindung unterscheiden sich dabei im Wesentlichen durch Bauart und mechanische Ansteuerung des Sperrglieds 12 mit dem Schieber 13.The individual concrete embodiments of the invention differ essentially by design and mechanical control of the locking
Im Beispiel nach
In dem Beispiel nach
Die Merkmale der verschiedenen Ausführungsbeispiele können je nach Anforderungen miteinander kombiniert werden.The features of the various embodiments may be combined with each other as required.
Claims (8)
- Driving tool, comprising
a hand-held housing (1) accommodating an energy-transfer element (2) movable in a drivable manner for transferring energy to a fastening element (8),
a drive member (4) of the energy-transfer element (2), the drive member (4) acting on the fastening element (8) so as to drive it in, and
a sensor member (11) for determining an operational state of the driving tool, a driving process only being enabled when the operational state prevails, characterised in that
a locking member (12, 13) is arranged in a locking manner in the path of the energy-transfer element when the non-operational state prevails, wherein the locking member (12, 13) can stop the energy-transfer element (2) after the initiation of a driving process and wherein the locking member comprises a movable slide (13), the slide (13) in its locking position being arranged between the drive member (4) and the fastening element (8) and the slide (13) in its release position releasing the displacement path of the drive member (4) towards the fastening member (8). - Driving tool according to claim 1, characterised in that the slide (13) is connected to a contact member (11) via a mechanism (14, 18, 20, 21), the slide (13) being moved into the release position when the contact member (11) presses against a workpiece.
- Driving tool according to claim 2, characterised in that the locking member (12, 13) is connected to the contact member (11) by means of a pressure rod (14).
- Driving tool according to one of claims 1 to 3, characterised in that the slide (13) is designed as a rotary slide (13a).
- Driving tool according to one of claims 1 to 3, characterised in that the slide (13) is designed as a linear slide (13b, 13c).
- Driving tool according to one of the preceding claims, characterised in that the driving tool has an electric motor (7a) as a drive source.
- Driving tool according to one of the preceding claims, characterised in that the sensor member (11) comprises a contact member (11) in a front region of the driving tool, the contact member (11) being supported against a workpiece in order to enable the driving process.
- Driving tool according to one of the preceding claims, characterised in that a further safety device is provided on the driving tool in addition to the locking member (12, 13), the further safety device preventing the initiation of a driving process.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012214694.6A DE102012214694A1 (en) | 2012-08-17 | 2012-08-17 | Tacker with safety lock |
PCT/EP2013/066873 WO2014026966A2 (en) | 2012-08-17 | 2013-08-13 | Fastener driving tool with safety lock |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2885110A2 EP2885110A2 (en) | 2015-06-24 |
EP2885110B1 true EP2885110B1 (en) | 2017-07-05 |
Family
ID=48998597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13750302.5A Active EP2885110B1 (en) | 2012-08-17 | 2013-08-13 | Fastener driving tool with safety lock |
Country Status (7)
Country | Link |
---|---|
US (1) | US10046448B2 (en) |
EP (1) | EP2885110B1 (en) |
JP (1) | JP6035004B2 (en) |
CN (1) | CN104703761B (en) |
DE (1) | DE102012214694A1 (en) |
ES (1) | ES2643267T3 (en) |
WO (1) | WO2014026966A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11633839B2 (en) | 2016-03-22 | 2023-04-25 | Stanley Black & Decker, Inc. | Safety device for tackers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6540372B2 (en) * | 2015-08-24 | 2019-07-10 | マックス株式会社 | Driving tool |
Citations (1)
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DE102005000107A1 (en) * | 2005-08-25 | 2007-03-01 | Hilti Ag | Pneumatic fastener driver uses common chamber, equipped with check valves, as compressed air storage or expansion spaces |
Family Cites Families (16)
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JPS5755026Y2 (en) * | 1977-10-28 | 1982-11-27 | ||
JPH0228007Y2 (en) * | 1985-05-16 | 1990-07-27 | ||
JPH0631965U (en) * | 1992-09-25 | 1994-04-26 | 日立工機株式会社 | Driving machine safety device |
JP3641924B2 (en) * | 1997-12-19 | 2005-04-27 | 日立工機株式会社 | Driving machine |
DE10032310C2 (en) | 2000-07-04 | 2003-07-17 | Hilti Ag | Portable, combustion-powered working device, in particular setting device for fastening elements, and method for its operational control |
JP4047227B2 (en) * | 2003-05-29 | 2008-02-13 | 株式会社マキタ | Driving machine |
US20060091177A1 (en) * | 2004-10-29 | 2006-05-04 | Cannaliato Michael F | Operational lock and depth adjustment for fastening tool |
CN100374249C (en) * | 2005-01-07 | 2008-03-12 | 力肯实业股份有限公司 | Empty state brake device for stapler |
DE102005000061A1 (en) * | 2005-05-18 | 2006-11-23 | Hilti Ag | Electrically operated tacker |
CN101585182B (en) * | 2008-05-23 | 2011-08-31 | 台州市大江实业有限公司 | Nailing gun firing safety device and nailing gun installed with same |
CN201257655Y (en) * | 2008-09-26 | 2009-06-17 | 浙江中杰工具有限公司 | Pin gun head check locking mechanism |
DE102008054816A1 (en) | 2008-12-17 | 2010-07-01 | Hilti Aktiengesellschaft | Hand-guided tacker |
ES2691410T3 (en) * | 2010-06-15 | 2018-11-27 | Hilti Aktiengesellschaft | Drive device |
DE102010030098A1 (en) * | 2010-06-15 | 2011-12-15 | Hilti Aktiengesellschaft | driving- |
DE102010030055A1 (en) * | 2010-06-15 | 2011-12-15 | Hilti Aktiengesellschaft | Electrically operated bolt gun and method for operating the bolt gun |
DE102010063964A1 (en) * | 2010-12-22 | 2012-06-28 | Hilti Aktiengesellschaft | tacker |
-
2012
- 2012-08-17 DE DE102012214694.6A patent/DE102012214694A1/en not_active Withdrawn
-
2013
- 2013-08-13 JP JP2015526960A patent/JP6035004B2/en active Active
- 2013-08-13 ES ES13750302.5T patent/ES2643267T3/en active Active
- 2013-08-13 CN CN201380052424.6A patent/CN104703761B/en active Active
- 2013-08-13 EP EP13750302.5A patent/EP2885110B1/en active Active
- 2013-08-13 WO PCT/EP2013/066873 patent/WO2014026966A2/en active Application Filing
- 2013-08-13 US US14/422,114 patent/US10046448B2/en active Active
Patent Citations (1)
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DE102005000107A1 (en) * | 2005-08-25 | 2007-03-01 | Hilti Ag | Pneumatic fastener driver uses common chamber, equipped with check valves, as compressed air storage or expansion spaces |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11633839B2 (en) | 2016-03-22 | 2023-04-25 | Stanley Black & Decker, Inc. | Safety device for tackers |
Also Published As
Publication number | Publication date |
---|---|
US20150224637A1 (en) | 2015-08-13 |
US10046448B2 (en) | 2018-08-14 |
WO2014026966A2 (en) | 2014-02-20 |
CN104703761A (en) | 2015-06-10 |
JP2015526304A (en) | 2015-09-10 |
CN104703761B (en) | 2017-06-09 |
ES2643267T3 (en) | 2017-11-21 |
JP6035004B2 (en) | 2016-11-30 |
EP2885110A2 (en) | 2015-06-24 |
WO2014026966A3 (en) | 2014-07-10 |
DE102012214694A1 (en) | 2014-02-20 |
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