EP3825082B1 - Hand tool and lighting means carrier for connection with a hand tool - Google Patents

Hand tool and lighting means carrier for connection with a hand tool Download PDF

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Publication number
EP3825082B1
EP3825082B1 EP20207924.0A EP20207924A EP3825082B1 EP 3825082 B1 EP3825082 B1 EP 3825082B1 EP 20207924 A EP20207924 A EP 20207924A EP 3825082 B1 EP3825082 B1 EP 3825082B1
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EP
European Patent Office
Prior art keywords
hand tool
illumination means
handle
head
tool according
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EP20207924.0A
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German (de)
French (fr)
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EP3825082C0 (en
EP3825082A1 (en
Inventor
Alexander Wetzel
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Vision Devices GmbH
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Vision Devices GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/008—Leisure, hobby or sport articles, e.g. toys, games or first-aid kits; Hand tools; Toolboxes
    • F21V33/0084—Hand tools; Toolboxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/08—Handle constructions with provision for storing tool elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B23/00—Axes; Hatchets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present invention relates to a hand tool, comprising a head connected to a handle, with the handle and/or the head being assigned lamps for illuminating a workpiece and at least one energy store for the electrical supply of the lamps, and a lamp carrier for connection to a hand tool, wherein the head is a hammer head or an ax or hatchet blade.
  • a lower effect of the illumination is achieved by the CN 103737555A , CN 201565927 U , CN 201849415 U , JPH 10201439A or FR 2 626 698 A2 , which are security tools, therefore Hammers for breaking vehicle windows in an emergency, for example to exit an accident bus or train through the broken window.
  • lighting elements are also known from other tools. So serves a flashlight according to the CN 203068159 U , as well as according to the DE 202 12 529 U1 definitely the lighting, but can also be used as a hand tool or even as a hand weapon. In this case, however, the lighting function and the tool/weapon function are to be considered completely separate from one another and do not interact.
  • CN207344510U discloses the preamble of claim 1.
  • none of these objects are suitable for supporting the user during the impact in that the workpiece is particularly illuminated, or even an impact track is specified, which is fed to an illumination. Insofar as only manageable points are illuminated, these are only illuminated for a moment during a shot, so that such a point of light is not helpful. With a diffused lighting, the illumination is weak and does not help for a directional hit.
  • the object of the present invention is to create a hand tool that enables improved aiming accuracy and observation of the workpiece even when visibility is poor, as well as an equivalent illuminant carrier that can be connected to a conventional hand tool.
  • a hand tool that is essentially made of a handle and a head has lighting means that are assigned to the handle, the head, or both, which project an elongated trace of light.
  • this projection takes place in a common plane with the handle and the head, so that a guided movement of the hand tool in this plane is meaningfully possible.
  • lighting will discreetly illuminate the entire path of the blow and both specify the path of the blow and allow a good view of the workpiece.
  • the illuminated angle can be at least 90°, preferably at least 180° and particularly preferably at least 270°, it being possible for a plurality of illuminants to work together to achieve such an angle.
  • These can be attached to the front, front and back of the stem at about the same time in order to be able to shine unhindered and at the same time not to impede the user.
  • Such a solution can particularly preferably be provided for hand tools that are guided in a percussion arc, ie in particular a hammer, an ax or a hatchet. It is accordingly the head of such a hand tool is a hammer head, an ax blade or a hatchet blade.
  • the lighting means are integrated into the hand tool itself.
  • Hand tools with a hollow handle are already available if they are made of a sufficiently robust material. Cavities can then be provided in the material for accommodating light sources, electronic or electrical components and an energy store, which can be accommodated and stowed in the handle, but can also be arranged in a protected manner at the same time.
  • the energy store can either be installed in such a way that a receptacle for the energy store is accessible from the outside, or it can be connected to a charging socket that is led to the outside, via which the energy store can be supplied with energy.
  • a second embodiment provides that the lighting means and the energy store are arranged with the associated electronic or electrical components in a detachable lighting means carrier.
  • This bulb holder can be designed in such a way that it can be assigned to the handle or the head of the hand tool.
  • a cover preferably made of an elastic material such as silicone, a cuff with a fastener, be it a Velcro fastener, a buckle, loop or the like, or a clip housing that clamps to the Handle or the head of the craft train is held.
  • the lamps, the energy storage and the electronic and electrical components are exposed to strong vibrations when hit, so that it seems sensible , the impact of the concussion so to reduce as much as possible.
  • This can be done by casting the components, for example with epoxy resin.
  • Light-emitting diodes so-called light-emitting diodes or LEDs
  • LEDs Light-emitting diodes
  • illuminants are well secured against shocks, since they do not have any particularly filigree elements but are already largely impact-resistant.
  • luminescence elements which light up due to a chemical reaction when energy is supplied.
  • all illuminants, including incandescent elements, can be used in the invention.
  • Lasers in particular line lasers, can particularly preferably be used as illuminants. These can provide a shaped tracer track particularly well, with the illumination effect being set back, in order to enable a straight shot. At least one further laser can be added to this to produce a crosshair, with further laser lines crossing the first laser line in the plane of the handle and head when hitting the workpiece.
  • the illuminants used such as the laser
  • the subject of the invention is also the illuminant carrier as a separate unit.
  • illuminant carrier as described above relate both to the illuminant carrier, which is assigned to the hand tool, and to the separately executed illuminant carrier.
  • figure 1 shows a hand tool 1, which is designed as an axe. It essentially consists of a handle 2 and a head 3, the head 3 being forged and forming an ax blade.
  • An LED 6 is integrated in the handle 2 above a typical grip position, which LED 6 emits a shaped tracer 4 due to an upstream prism, which is not shown in detail here.
  • the tracer 4 is elongate and aligned in the plane of the handle 2 and the head 3, so that the user sees the entire striking arc illuminated in front of him during a backswing.
  • a battery compartment 5 is provided at the lower end of the handle 2, in which an energy store, ie an accumulator or a battery, is inserted in an exchangeable manner. Electrical components within the stem are potted with an epoxy resin, so that the vibration from hits of the hatchet does not damage the connections between the components, as well as the components themselves.
  • FIG 2 shows an alternative embodiment, which is based on a conventional axe.
  • a cuff 8, which carries the required electronic components, is attached to its handle 2.
  • These are in particular a line laser 7 as a variant for using an LED 6, as well as an energy store which supplies the line laser 7 with energy and the additional electrical and electronic components required for this.
  • the line laser 7 works in accordance with the LED 6 by projecting a shaped tracer in the plane of the handle 2 and the head 3 of the hand tool 1 .
  • the cuff 8 can be attached and detached by means of fasteners 9, which are designed here as fastener straps, which are placed around the stem 2 and tightened. This allows both an optional operation of the hand tool 1 with or without the invention and, in particular, a retrofitting of the invention to conventional hand tools 1.
  • a hand tool is thus described above, in which improved aiming accuracy and observation of the workpiece is made possible even when visibility is poor, as well as an equivalent illuminant carrier for connection to a hand tool.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

Die vorliegende Erfindung betrifft ein Handwerkzeug, umfassend einen mit einem Stiel verbundenen Kopf, wobei dem Stiel und/oder dem Kopf Leuchtmittel zur Ausleuchtung eines Werkstücks sowie wenigstens ein Energiespeicher zur elektrischen Versorgung der Leuchtmittel zugeordnet sind, sowie einen Leuchtmittelträger zur Verbindung mit einem Handwerkzeug, wobei es sich bei dem Kopf um einen Hammerkopf oder eine Axt- oder Beilklinge handelt.The present invention relates to a hand tool, comprising a head connected to a handle, with the handle and/or the head being assigned lamps for illuminating a workpiece and at least one energy store for the electrical supply of the lamps, and a lamp carrier for connection to a hand tool, wherein the head is a hammer head or an ax or hatchet blade.

Derartige Handwerkzeuge mit Beleuchtungselementen sind im Stand der Technik bereits vielfach bekannt. So weisen die Schriften CN 104416539 A , CN 105215946 A , CN 105666423 A , CN 108436845 A , CN 204322022 U , CN 204471326 U , CN 205237989 U , CN 205852851 U , CN 207344510 U , CN 207616512 U , CN 208930172 U oder KR 20160099199 A auf diverse Hämmer und Beile hin, welche eine Beleuchtung in ihrem Griff realisieren, um eine Nutzung im Dunkeln zu ermöglichen. Eine solche Beleuchtung wird in den genannten Schriften als diffus beschrieben, leuchtet also die gesamte Umgebung des Handwerkzeugs in alle Richtungen aus.Such hand tools with lighting elements are already widely known in the prior art. Thus do the scriptures point CN 104416539A , CN 105215946A , CN 105666423A , CN 108436845A , CN 204322022 U , CN 204471326 U , CN 205237989 U , CN 205852851 U , CN 207344510 U , CN 207616512 U , CN 208930172 U or KR 20160099199 A point out various hammers and axes, which implement lighting in their handle to enable use in the dark. Such lighting is described in the documents mentioned as being diffuse, that is to say it illuminates the entire area surrounding the hand tool in all directions.

Ein geringerer Effekt der Ausleuchtung wird hingegen erzielt durch die CN 103737555 A , CN 201565927 U , CN 201849415 U , JPH 10201439A oder FR 2 626 698 A2 , bei denen es sich um Sicherheitswerkzeuge handelt, mithin um Hämmer zum Einschlagen von Fahrzeugscheiben im Notfall, um etwa einen verunfallten Bus oder Zug durch das eingeschlagene Fenster zu verlassen. Derartige Beleuchtungselemente sind jedoch ebenfalls aus anderen Werkzeugen bekannt. So dient eine Taschenlampe gemäß der CN 203068159 U , sowie gemäß der DE 202 12 529 U1 durchaus der Beleuchtung, kann aber auch als Handwerkzeug oder gar als Handwaffe eingesetzt werden. In diesem Fall sind aber die Beleuchtungsfunktion und die Werkzeug-/Waffenfunktion vollständig voneinander getrennt anzusehen und wirken nicht zusammen.A lower effect of the illumination, however, is achieved by the CN 103737555A , CN 201565927 U , CN 201849415 U , JPH 10201439A or FR 2 626 698 A2 , which are security tools, therefore Hammers for breaking vehicle windows in an emergency, for example to exit an accident bus or train through the broken window. However, such lighting elements are also known from other tools. So serves a flashlight according to the CN 203068159 U , as well as according to the DE 202 12 529 U1 definitely the lighting, but can also be used as a hand tool or even as a hand weapon. In this case, however, the lighting function and the tool/weapon function are to be considered completely separate from one another and do not interact.

Bei der DE 10 2011 075 663 A1 , wie auch bei der DE 10 2012 205 274 A1 kommt eine Beleuchtung des Arbeitsfelds ins Spiel, jedoch ist das zu beleuchtende Arbeitsfeld bei den dort beschriebenen Arbeitsmaschinen, nämlich Ackuschraubern, sehr klar umrissen und es ist aufgrund der Werkzeugführung ausreichend, einen kleinen Lichtpunkt zu werfen, um das Werkstück ausreichend zu beleuchten. Ebenso verhält es sich bei der US 7,093,951 B2 oder der US 8,714,765 B2 .In the DE 10 2011 075 663 A1 , as well as with the DE 10 2012 205 274 A1 Illumination of the working area comes into play, but the working area to be illuminated is very clearly outlined in the working machines described there, namely cordless screwdrivers, and due to the tool guidance it is sufficient to throw a small point of light in order to illuminate the workpiece sufficiently. The same applies to the U.S. 7,093,951 B2 or the U.S. 8,714,765 B2 .

Weiter sind vergleichbar beleuchtete Handwerkzeuge aus der DE 20 2004 017 968 U1 , US 2010/0085739 A1 , GB 2 437 798 A , und der CA 2 460 858 A1 bekannt, wobei es sich um Schneidwerkzeuge handelt.Next are comparable illuminated hand tools from the DE 20 2004 017 968 U1 , US 2010/0085739 A1 , GB 2 437 798 A , and the CA2 460 858 A1 known, which are cutting tools.

Des Weiteren wird im Zusammenhang mit Leuchtmitteln für Geräte auf die folgenden Schriften US 2002/0105794 A1 , US 7300172 B1 , US 20160131345 A1 , US 20080266845 A1 , CN 205852851 U und GB 2449430 A zu nennen.Furthermore, in connection with light sources for devices, reference is made to the following documents U.S. 2002/0105794 A1 , US7300172B1 , US20160131345A1 , US20080266845A1 , CN 205852851 U and GB 2449430A to call.

CN20734451 0U offenbart das Oberbegriff des Anspruches 1. CN207344510U discloses the preamble of claim 1.

US2002/0105794A1 offenbart das Oberbegriff des Anspruches 11. US2002/0105794A1 discloses the preamble of claim 11.

Alle diese Gegenstände sind jedoch nicht dafür geeignet, den Nutzer beim Schlag dahingehend zu unterstützen, dass das Werkstück im Besonderen ausgeleuchtet wird, oder gar eine Schlagspur vorgegeben wird, welche einer Ausleuchtung zugeführt wird. Soweit lediglich überschaubare Punkte ausgeleuchtet werden, werden diese bei einem Schlag nur für einen Moment ausgeleuchtet, so dass ein solcher Lichtpunkt nicht hilfreich ist. Bei einer diffusen Beleuchtung ist die Ausleuchtung schwach und hilft nicht für einen gerichteten Schlag.However, none of these objects are suitable for supporting the user during the impact in that the workpiece is particularly illuminated, or even an impact track is specified, which is fed to an illumination. Insofar as only manageable points are illuminated, these are only illuminated for a moment during a shot, so that such a point of light is not helpful. With a diffused lighting, the illumination is weak and does not help for a directional hit.

Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zu Grunde, ein Handwerkzeug zu schaffen, bei welchem eine verbesserte Zielgenauigkeit und eine Beobachtung des Werkstücks auch bei verschlechterten Sichtverhältnissen ermöglicht wird, sowie einen gleichwirkenden, mit einem herkömmlichen Handwerkzeug verbindbaren Leuchtmittelträger.Against this background, the object of the present invention is to create a hand tool that enables improved aiming accuracy and observation of the workpiece even when visibility is poor, as well as an equivalent illuminant carrier that can be connected to a conventional hand tool.

Dies gelingt durch ein Handwerkzeug gemäß den Merkmalen des unabhängigen Anspruchs 1, sowie einen Leuchtmittelträger gemäß den Merkmalen des nebengeordneten Anspruchs 11. Weitere, sinnvolle Ausgestaltungen können den abhängigen Ansprüchen entnommen werden.This is achieved by a hand tool according to the features of independent claim 1 and a light source carrier according to the features of independent claim 11. Other useful configurations can be found in the dependent claims.

So sieht erfindungsgemäß ein Handwerkzeug, welches im Wesentlichen aus einem Stiel und einem Kopf hergestellt ist, dass dem Stiel, dem Kopf oder beiden Leuchtmittel zugeordnet sind, welche eine länglich geformte Leuchtspur projizieren. Diese Projektion erfolgt hierbei in einer gemeinsamen Ebene mit dem Stiel und dem Kopf, so dass eine geführte Bewegung des Handwerkzeugs in dieser Ebene sinnvoll möglich ist. Dann wird eine solche Beleuchtung den gesamten Weg des Schlages diskret ausleuchten und sowohl den Schlagweg vorgeben, als auch eine gute Sicht auf das Werkstück ermöglichen.Thus, according to the invention, a hand tool that is essentially made of a handle and a head has lighting means that are assigned to the handle, the head, or both, which project an elongated trace of light. In this case, this projection takes place in a common plane with the handle and the head, so that a guided movement of the hand tool in this plane is meaningfully possible. Then such lighting will discreetly illuminate the entire path of the blow and both specify the path of the blow and allow a good view of the workpiece.

Mit einigem Vorteil kann hierbei der ausgeleuchtete Winkel wenigstens 90°, bevorzugt wenigstens 180° und besonders bevorzugt wenigstens 270° betragen, wobei mehrere Leuchtmittel zur Erreichung eines solchen Winkels zusammenwirken können. Diese können etwa gleichzeitig an Vorder-, Stirn- und Rückseite des Stiels angebracht sein, um ungehindert leuchten zu können und gleichzeitig den Benutzer nicht zu behindern.With some advantage, the illuminated angle can be at least 90°, preferably at least 180° and particularly preferably at least 270°, it being possible for a plurality of illuminants to work together to achieve such an angle. These can be attached to the front, front and back of the stem at about the same time in order to be able to shine unhindered and at the same time not to impede the user.

Besonders bevorzugt kann eine solche Lösung an Handwerkzeugen vorgesehen werden, welche in einem Schlagbogen geführt werden, also insbesondere einem Hammer, einer Axt oder einem Beil. Entsprechend handelt es sich bei dem Kopf eines solchen Handwerkzeugs um einen Hammerkopf, eine Axtklinge oder eine Beilklinge.Such a solution can particularly preferably be provided for hand tools that are guided in a percussion arc, ie in particular a hammer, an ax or a hatchet. It is accordingly the head of such a hand tool is a hammer head, an ax blade or a hatchet blade.

Zunächst kann in einer ersten Ausgestaltungsform vorgesehen sein, dass die Leuchtmittel in das Handwerkzeug selbst integriert sind. Es werden bereits Handwerkzeuge mit hohlem Stiel angeboten, wenn dieser aus einem ausreichend robusten Material hergestellt ist. Dann können in dem Material Hohlräume für eine Aufnahme von Leuchtmitteln, elektronischen oder elektrischen Komponenten und einem Energiespeicher vorgesehen werden, welche in dem Stiel aufgenommen und verstaut, jedoch auch gleichzeitig geschützt angeordnet sein können. Der Energiespeicher kann hierbei entweder so verbaut werden, dass eine Aufnahme für den Energiespeicher von außen zugänglich ist, oder aber mit einer nach außen geführten Ladebuchse verbunden sein, über die der Energiespeicher mit Energie versorgt werden kann.First of all, in a first embodiment it can be provided that the lighting means are integrated into the hand tool itself. Hand tools with a hollow handle are already available if they are made of a sufficiently robust material. Cavities can then be provided in the material for accommodating light sources, electronic or electrical components and an energy store, which can be accommodated and stowed in the handle, but can also be arranged in a protected manner at the same time. The energy store can either be installed in such a way that a receptacle for the energy store is accessible from the outside, or it can be connected to a charging socket that is led to the outside, via which the energy store can be supplied with energy.

Eine zweite Ausgestaltungsform sieht aber vor, dass die Leuchtmittel und der Energiespeicher mit den zugehörigen elektronischen oder elektrischen Komponenten in einem lösbaren Leuchtmittelträger angeordnet sind. Dieser Leuchtmittelträger kann so gestaltet sein, dass er dem Stiel oder auch dem Kopf des Handwerkzeugs zugeordnet werden kann.However, a second embodiment provides that the lighting means and the energy store are arranged with the associated electronic or electrical components in a detachable lighting means carrier. This bulb holder can be designed in such a way that it can be assigned to the handle or the head of the hand tool.

Insbesondere erscheint für eine Befestigung entweder ein Überzug, vorzugsweise aus einem elastischen Material wie Silikon, eine Manschette mit einem Verschluss, sei es ein Klettverschluss, eine Schnalle, Schlaufe oder dergleichen, oder aber ein Clipgehäuse, das aufgrund von Form- und Kraftschluss klemmend an dem Stiel oder dem Kopf des Handwerkezugs gehalten ist.In particular, either a cover, preferably made of an elastic material such as silicone, a cuff with a fastener, be it a Velcro fastener, a buckle, loop or the like, or a clip housing that clamps to the Handle or the head of the craft train is held.

Sowohl bei einer Befestigung am Kopf wie auch am Stiel, bei einer Integration in den Stiel oder bei einer lösbaren Befestigung am Handwerkzeug sind die Leuchtmittel, der Energiespeicher und die elektronischen und elektrischen Komponenten beim Ausführen von Schlägen einer starken Erschütterung ausgesetzt, so dass es sinnvoll erscheint, die Auswirkungen der Erschütterung so weit wie möglich zu reduzieren. Dies kann durch einen Verguss der Komponenten, etwa mit Epoxidharz, erfolgen.When attached to the head as well as to the handle, when integrated into the handle or when detachably attached to the hand tool, the lamps, the energy storage and the electronic and electrical components are exposed to strong vibrations when hit, so that it seems sensible , the impact of the concussion so to reduce as much as possible. This can be done by casting the components, for example with epoxy resin.

Als Leuchtmittel können mit einigem Vorteil Licht emittierende Dioden, so genannte Leuchtdioden oder LEDs, eingesetzt werden. Diese sind gut gegen Erschütterungen gesichert, da sie keine besonders filigranen Elemente besitzen sondern bereits an sich weitgehend schlagfest sind. Ähnliches gilt für Lumineszenzelemente, welche aufgrund einer chemischen Reaktion bei Energiezufuhr leuchten. Prinzipiell können aber alle Leuchtmittel, auch Glühelemente, in der Erfindung eingesetzt werden.Light-emitting diodes, so-called light-emitting diodes or LEDs, can be used with some advantage as illuminants. These are well secured against shocks, since they do not have any particularly filigree elements but are already largely impact-resistant. The same applies to luminescence elements, which light up due to a chemical reaction when energy is supplied. In principle, however, all illuminants, including incandescent elements, can be used in the invention.

Besonders bevorzugt können als Leuchtmittel Laser, insbesondere Linienlaser eingesetzt werden. Diese können unter Zurückstellung des Ausleuchtungseffekts besonders gut eine geformte Leuchtspur vorgeben, um einen geraden Schlag zu ermöglichen. Dem kann wenigstens ein weiterer Laser hinzugefügt werden, um ein Zielkreuz herzustellen, wobei weitere Laserlinien die erste Laserlinie in der Ebene des Stiels und des Kopfes kreuzen, wenn sie das Werkstück treffen.Lasers, in particular line lasers, can particularly preferably be used as illuminants. These can provide a shaped tracer track particularly well, with the illumination effect being set back, in order to enable a straight shot. At least one further laser can be added to this to produce a crosshair, with further laser lines crossing the first laser line in the plane of the handle and head when hitting the workpiece.

Mit besonderem Vorteil bewegen sich die weiteren Laserlinien während des Schlages, entweder aufgrund eines Ausgleichs des Projektionswinkels während der Schlagbewegung, oder aufgrund einer mechanischen Verstellung währenddessen. Vorteilhaft für die Personalisierung des Handwerkzeugs ist dabei eine Möglichkeit, eine Nullstellung vorzugeben und zu speichern.It is particularly advantageous for the further laser lines to move during the impact, either due to a compensation of the projection angle during the impact movement, or due to a mechanical adjustment during the same. A possibility of specifying and storing a zero position is advantageous for the personalization of the hand tool.

Grundsätzlich können die verwendeten Leuchtmittel, wie der Laser, bereits von sich aus in der Lage sein, eine geformte, abgegrenzte Leuchtspur zu emittieren. Falls dies nicht der Fall ist, können den Leuchtmittel zu diesem Zweck geformte Prismen, Reflektoren, Deflektoren oder andere optische Hilfsmittel zugeordnet werden, welche das emittierte Licht zu einer diskreten Leuchtspur formen.In principle, the illuminants used, such as the laser, can already be able to emit a shaped, delimited trace of light by themselves. If this is not the case, prisms, reflectors, deflectors or other optical aids shaped for this purpose can be assigned to the lighting means, which shape the emitted light into a discrete tracer.

Gegenstand der Erfindung ist neben dem Handwerkzeug mit einer integrierten oder lösbaren Beleuchtung auch der Leuchtmittelträger als separate Einheit.In addition to the hand tool with integrated or detachable lighting, the subject of the invention is also the illuminant carrier as a separate unit.

Diese kann nach Bedarf herkömmlichen Handwerkzeugen zugeordnet werden. Merkmale des Leuchtmittelträgers wie oben beschrieben beziehen sich sowohl auf den Leuchtmittelträger, welcher dem Handwerkzeug zugeordnet ist, als auch auf den separat ausgeführten Leuchtmittelträger.This can be assigned to conventional hand tools as required. Features of the illuminant carrier as described above relate both to the illuminant carrier, which is assigned to the hand tool, and to the separately executed illuminant carrier.

Die vorstehend beschriebene Erfindung wird im Folgenden anhand eines Ausführungsbeispiels näher erläutert.The invention described above is explained in more detail below using an exemplary embodiment.

Es zeigen

Figur 1
ein Handwerkzeug mit einer in einen Stiel integrierten Beleuchtungsvorrichtung in perspektivischer Darstellung, sowie
Figur 2
ein Handwerkzeug mit einem am Stiel befestigten separaten Leuchtmittelträger in perspektivischer Darstellung.
Show it
figure 1
a hand tool with a handle integrated lighting device in a perspective view, and
figure 2
a perspective view of a hand tool with a separate bulb holder attached to the handle.

Figur 1 zeigt ein Handwerkzeug 1, welches als Beil ausgeführt ist. Es besteht im Wesentlichen aus einem Stiel 2 und einem Kopf 3, wobei der Kopf 3 geschmiedet ist und eine Beilklinge ausbildet. Oberhalb einer typischen Griffposition ist in dem Stiel 2 eine LED 6 integriert, welche aufgrund eines vorgeschalteten Prismas, das hier nicht näher dargestellt ist, eine geformte Leuchtspur 4 aussendet. Die Leuchtspur 4 ist dabei länglich und in der Ebene des Stiels 2 und des Kopfes 3 ausgerichtet, so dass der Benutzer bei einem Ausholvorgang den gesamten Schlagbogen ausgeleuchtet vor sich sieht. Am unteren Ende des Stiels 2 ist ein Batteriefach 5 vorgesehen, in welches ein Energiespeicher, also ein Akkumulator oder eine Batterie, austauschbar eingelegt ist. Elektrische Komponenten innerhalb des Stiels sind mit einem Epoxidharz vergossen, so dass die Erschütterung von Schlägen des Beils die Verbindungen zwischen den Komponenten sowie die Komponenten selbst nicht beschädigen. figure 1 shows a hand tool 1, which is designed as an axe. It essentially consists of a handle 2 and a head 3, the head 3 being forged and forming an ax blade. An LED 6 is integrated in the handle 2 above a typical grip position, which LED 6 emits a shaped tracer 4 due to an upstream prism, which is not shown in detail here. The tracer 4 is elongate and aligned in the plane of the handle 2 and the head 3, so that the user sees the entire striking arc illuminated in front of him during a backswing. A battery compartment 5 is provided at the lower end of the handle 2, in which an energy store, ie an accumulator or a battery, is inserted in an exchangeable manner. Electrical components within the stem are potted with an epoxy resin, so that the vibration from hits of the hatchet does not damage the connections between the components, as well as the components themselves.

Figur 2 zeigt eine alternative Ausgestaltung, bei dem ein herkömmliches Beil zugrunde gelegt wird. An dessen Stiel 2 wird eine Manschette 8 befestigt, welche die erforderlichen elektronischen Komponenten trägt. Diese sind insbesondere eine Linienlaser 7 als Variante zur Verwendung einer LED 6, sowie ein Energiespeicher, welcher den Linienlaser 7 mit Energie versorgt und die dafür erforderlichen zusätzlichen elektrischen und elektronischen Komponenten. Prinzipiell arbeitet der Linienlaser 7 entsprechend der LED 6, indem er eine geformte Leuchtspur in der Ebene des Stiels 2 und des Kopfes 3 des Handwerkzeugs 1 projiziert. Allerdings kann die Manschette 8 mithilfe von Verschlüssen 9, die hier als Verschlussbänder ausgeführt sind, die um den Stiel 2 herum gelegt und festgezogen werden, befestigt und gelöst werden. Dies ermöglicht sowohl einen wahlweisen Betrieb des Handwerkzeugs 1 mit oder ohne die Erfindung, wie auch insbesondere ein Nachrüsten der Erfindung an herkömmlichen Handwerkzeugen 1. figure 2 shows an alternative embodiment, which is based on a conventional axe. A cuff 8, which carries the required electronic components, is attached to its handle 2. These are in particular a line laser 7 as a variant for using an LED 6, as well as an energy store which supplies the line laser 7 with energy and the additional electrical and electronic components required for this. In principle, the line laser 7 works in accordance with the LED 6 by projecting a shaped tracer in the plane of the handle 2 and the head 3 of the hand tool 1 . However, the cuff 8 can be attached and detached by means of fasteners 9, which are designed here as fastener straps, which are placed around the stem 2 and tightened. This allows both an optional operation of the hand tool 1 with or without the invention and, in particular, a retrofitting of the invention to conventional hand tools 1.

Vorstehend beschrieben ist somit ein Handwerkzeug, bei welchem eine verbesserte Zielgenauigkeit und eine Beobachtung des Werkstücks auch bei verschlechterten Sichtverhältnissen ermöglicht wird, sowie ein gleichwirkender Leuchtmittelträger zur Verbindung mit einem Handwerkzeug.A hand tool is thus described above, in which improved aiming accuracy and observation of the workpiece is made possible even when visibility is poor, as well as an equivalent illuminant carrier for connection to a hand tool.

BEZUGSZEICHENLISTEREFERENCE LIST

11
Handwerkzeughand tool
22
Stielstalk
33
KopfHead
44
Leuchtspurtracer
55
Batteriefachbattery compartment
66
LEDLEDs
77
Linienlaserline laser
88th
Manschettecuff
99
Verschlussclosure

Claims (11)

  1. A hand tool comprising a head (3) connected to a handle (2), wherein the handle (2) and/or the head (3) are associated with illumination means for illuminating a workpiece and at least one energy store for electrically supplying the illumination means, wherein the head (3) is a hammer head or an axe or hatchet blade,
    characterized in that the illumination means project an elongated light trace (4) extending in one common plane with the handle (2) and the head (3).
  2. The hand tool according to claim 1, characterized in that the illumination means and an accommodation for an energy store, which preferably is accessible from the outside, are integrated in the handle (2).
  3. The hand tool according to claim 1, characterized in that the illumination means and the energy store are assigned to an illumination means carrier that is detachable from the handle (2) or the head (3).
  4. The hand tool according to claim 3, characterized in that the illumination means carrier is designed to have a cover, preferably made of an elastic material, a sleeve (8) having a fastener (9) or a clip housing for clamping fixation to the handle (2) or the head (3).
  5. The hand tool according to any of the preceding claims, characterized in that the illumination means, the energy store and/or further electrical components are cast, preferably with an epoxy resin.
  6. The hand tool according to any of the preceding claims, characterized in that light emitting diodes, luminescent elements or incandescent elements are used as illumination means.
  7. The hand tool according to any of the preceding claims, characterized in that a laser, in particular a line laser (7) is used as illumination means.
  8. The hand tool according to claim 7, characterized in that at least one further line laser is assigned to the line laser (7), preferably at a right angle, wherein at least the further line lasers are arranged in the plane of the light trace (4) to be movable in such a manner that a change of inclination of the handle (2) is compensated by the further line laser.
  9. The hand tool according to claim 8, characterized in that a zero position of the further line lasers can be stored.
  10. The hand tool according to any of the preceding claims, characterized in that at least one shaped prism or one shaped reflector that shape the emitted light into the elongated light trace (4) is assigned to the illumination means.
  11. An illumination means carrier for connection with a hand tool (1) that is led in an arc-shaped stroke move, comprising a housing assigned with illumination means for illuminating a workpiece and at least one energy store for electrically supplying the illumination means, characterized in that the illumination means generate an elongated light trace (4) and that the housing has fastening means for fixation to the hand tool (1) in such a manner that the light trace (4) extends in one common plane with a handle (2) and a head (3) of the hand tool (1) and illuminates the entire path of the stroke, wherein for fastening to the handle (2) or the head (3), the illumination means carrier is designed to have a cover, preferably made of an elastic material, a sleeve (8) having a fastener (9) carrying the required electronic components, or a clip housing for clamping fixation to the handle (2) or the head (3).
EP20207924.0A 2019-11-21 2020-11-16 Hand tool and lighting means carrier for connection with a hand tool Active EP3825082B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019131516.6A DE102019131516B3 (en) 2019-11-21 2019-11-21 HAND TOOLS AND LAMP SUPPORT FOR CONNECTING TO A HAND TOOL

Publications (3)

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EP3825082A1 EP3825082A1 (en) 2021-05-26
EP3825082B1 true EP3825082B1 (en) 2023-08-02
EP3825082C0 EP3825082C0 (en) 2023-08-02

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EP (1) EP3825082B1 (en)
CN (1) CN112824745B (en)
DE (1) DE102019131516B3 (en)

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Publication number Publication date
DE102019131516B3 (en) 2020-12-31
EP3825082C0 (en) 2023-08-02
CN112824745B (en) 2023-02-03
CN112824745A (en) 2021-05-21
EP3825082A1 (en) 2021-05-26

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