EP1595661B1 - Poignée avec dispositif de sécurité pour outil à main motorisé - Google Patents

Poignée avec dispositif de sécurité pour outil à main motorisé Download PDF

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Publication number
EP1595661B1
EP1595661B1 EP05400015A EP05400015A EP1595661B1 EP 1595661 B1 EP1595661 B1 EP 1595661B1 EP 05400015 A EP05400015 A EP 05400015A EP 05400015 A EP05400015 A EP 05400015A EP 1595661 B1 EP1595661 B1 EP 1595661B1
Authority
EP
European Patent Office
Prior art keywords
handle
tube
sensor
half shells
pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05400015A
Other languages
German (de)
English (en)
Other versions
EP1595661A1 (fr
Inventor
Norbert Lay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schmid and Wezel GmbH and Co
Original Assignee
Schmid and Wezel GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schmid and Wezel GmbH and Co filed Critical Schmid and Wezel GmbH and Co
Publication of EP1595661A1 publication Critical patent/EP1595661A1/fr
Application granted granted Critical
Publication of EP1595661B1 publication Critical patent/EP1595661B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles

Definitions

  • the invention relates to a handle for a motor-driven hand tool according to the preamble of claim 1.
  • a handle for a motor-driven hand tool according to the preamble of claim 1.
  • Such a device is made US Pat. No. 4,493,377 A1 known .
  • Such handles with safety switches are usually provided on a second handle of such a motor-driven hand tool, so that the person handling the motor-driven hand tool, both hands securely on a handle - namely the first hand on the normally operated with the index finger ON / OFF switch on a first handle and the second hand on the second handle -, creating a safety switch is pressed. Only when the safety switch on the second handle is switched on, the switch-on is enabled on the ON / OFF switch on the first handle. Thus, it is ensured that while the operating engine is running and the tool (drill, knife or the like) is in operation, no hand of the operator is in a position where it can be injured.
  • a disadvantage of known, provided with a safety guard handles of this type is that they require a certain operating position of the "second" hand - namely the one that operates the safety switch - while for ergonomic reasons, it is often more convenient, if one of these second handle can touch another place.
  • a handle for a motor-driven tool according to the preamble of claim 1 is known from DE 93 08 698 U1 known.
  • two mutually opposite parallel electrical contact conductors are provided, which come in contact with the compression of the plastic channel in which they are arranged and in turn in a groove (17) of the outside of a handle for a motor-driven tool, and trigger a safety switch ,
  • the grip is reliably grasped with one hand, it is not the case that the contacts are also actuated.
  • the plastic tube surrounding the two contact conductors in a harsh environment is subject to a certain amount of wear and is possibly subject to damage.
  • a handle with safety circuit has become known in the below a pressure-sensitive zone, a fluid chamber system is arranged, which communicates with a switching device designed as an on / off switch. When touched pressure is exerted on the pressure-sensitive zone and thus on the fluid, which then actuates the switch.
  • This system is extremely expensive.
  • the switch is located in the fluid. He may be subject to wear. There is a problem of reliable sealing of the fluid chamber system. This system is therefore complicated, expensive and unreliable.
  • the object of the invention is therefore to provide a handle referred to in the preamble of claim 1 type such that these disadvantages are not met, in particular that you can touch this handle at any point and the contact is reliably closed.
  • Figure 1 shows a handle 1, which is formed by a tube.
  • the tube is approximately in the shape of a 3 ⁇ 4 circle.
  • a motor-driven hand tool for example a drill, a power saw, an angle grinder or a similar device.
  • the end faces 2 are provided with blind holes 3, which have an internal thread.
  • a motor-driven hand tool of this type has two handles, wherein the actual ON / OFF switch on a first handle (not shown) is mounted so that it can be operated with the forefinger, while the second switch a Safety switch is that serves to make the on / off on the first handle only take effect, although this second "safety" switch is actuated by the fact that the operator also holds the second handle.
  • pins 20 are provided on the half-shell 6 inside along the surfaces 10, 11 at a distance of 10 to 20 cm, which each have a distance of 0.5 to 1.0 mm from the associated surface 10 or 11. between these pins 20 and the surfaces 10 and 11, the actual designed as a film or board capacitive sensor elements or sensors 25, 26 are then clamped and supported by the lower surface 7 'of the recess 7.
  • the two capacitive sensors 25, 26 may be those in which a metal layer is applied flatly to a foil.
  • Two sensors, such as the two sensors 25, 26, are provided for safety reasons. The capacity is then influenced by touching the tube at any point. Depending on this, a signal is then generated in an evaluation circuit.
  • the sensors 25, 26 are provided with connecting wires 30, 31, which are guided through the connection opening 32 into a cable 33, which is connected to the control device of the tool, in which the said evaluation circuit is provided.
  • the use of a strip-shaped foil makes it possible in a simple manner for the sensor to be distributed spatially over the entire area that can be touched on the outside.
  • the outer surface of the handle is provided with grooves 40, which allow a non-slip touch.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (5)

  1. Poignée pour un outil à main motorisé, en particulier pour une scie à moteur, qui est formée par un tube constitué d'un matériau non électroconducteur, comportant un interrupteur de sécurité qui est déclenché par un capteur qui s'étend dans l'espace le long de la partie du tube pouvant être saisie de l'extérieur et qui est disposé dans ledit tube, caractérisée en ce que le tube est formé de deux demi-coquilles (5, 6) assemblées l'une dans l'autre, dont au moins une présente un élément de fixation plat (10, 11) et sur lesquelles est disposé un capteur capacitif (25, 26) plat s'étendant également sur cette partie.
  2. Poignée selon la revendication 1, caractérisée en ce que les deux demi-coquilles (5, 6) présentent chacune à distance l'un de l'autre un élément de fixation plat (10, 11) sur lequel sont fixés les capteurs (25, 26).
  3. Poignée selon la revendication 1 ou 2, caractérisée en ce que l'élément de fixation présente une surface oblongue (10, 11) en avant de laquelle des pointes (20) sont placées à distance, et en ce que le capteur (25, 26) réalisé sous la forme de bandes est collé entre les pointes et la surface (10, 11).
  4. Poignée selon une des revendications 1, 2 ou 3, caractérisée en ce que le tube présente deux surfaces (2) appropriées pour le vissage de la poignée (1) sur un outil.
  5. Poignée selon la revendication 4 ou 5, caractérisée en ce que les demi-coquilles présentent à distance desdits éléments de fixation (10, 11) des deuxièmes éléments de fixation (20), de sorte qu'un capteur (25, 26) peut être disposé entre les éléments de fixation (10, 11) mentionnés en premier et les deuxièmes éléments de fixation (20).
EP05400015A 2004-05-11 2005-05-03 Poignée avec dispositif de sécurité pour outil à main motorisé Active EP1595661B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004024035 2004-05-11
DE102004024035A DE102004024035A1 (de) 2004-05-11 2004-05-11 Griff für ein motorangetriebenes Handwerkzeug

Publications (2)

Publication Number Publication Date
EP1595661A1 EP1595661A1 (fr) 2005-11-16
EP1595661B1 true EP1595661B1 (fr) 2007-10-10

Family

ID=34942868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05400015A Active EP1595661B1 (fr) 2004-05-11 2005-05-03 Poignée avec dispositif de sécurité pour outil à main motorisé

Country Status (4)

Country Link
EP (1) EP1595661B1 (fr)
AT (1) ATE375234T1 (fr)
DE (2) DE102004024035A1 (fr)
DK (1) DK1595661T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011118613A1 (de) 2011-11-16 2013-05-16 Wsengineering Gmbh & Co.Kg Handgriff für ein motorisch angetriebenes Werkzeug sowie Verfahren zum Betrieb eines Totmannschalters

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042221A1 (de) * 2007-09-05 2009-03-12 Robert Bosch Gmbh Elektrohandwerkzeugmaschine sowie Verfahren zum Betreiben einer Elektrohandwerkzeugmaschine
DE102007043035A1 (de) * 2007-09-11 2009-03-12 Tool Express-Service Schraubertechnik Gmbh Handwerkzeug mit Zwei-Hand-Bedienung
EP3031315B1 (fr) * 2014-12-09 2021-09-01 Robert Bosch GmbH Dispositif de poignée pour outils de jardinage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040516A1 (de) * 1980-10-28 1982-05-27 Fa. Andreas Stihl, 7050 Waiblingen Sicherheitseinrichtung an einer motorsaege
DE3043264A1 (de) * 1980-11-15 1982-07-08 Robert Bosch Gmbh, 7000 Stuttgart Elektronische zweihandsicherung fuer werkzeuge
DE9308698U1 (de) * 1993-06-11 1994-10-27 Dolmar GmbH, 22045 Hamburg Handarbeitsgerät mit einem Antrieb
DE10219368A1 (de) * 2002-04-30 2003-11-20 Magenwirth Gmbh Co Gustav Totmannvorrichtung
DE10232934A1 (de) * 2002-07-19 2004-01-29 Ident Technology Ag Handgriffeinrichtung sowie Sicherheitsschaltungsanordnung insbesondere für ein kraftbetriebenes Werkzeug
DE10302532A1 (de) * 2003-01-23 2004-07-29 Hilti Ag Steuerung einer Handwerkzeugmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011118613A1 (de) 2011-11-16 2013-05-16 Wsengineering Gmbh & Co.Kg Handgriff für ein motorisch angetriebenes Werkzeug sowie Verfahren zum Betrieb eines Totmannschalters

Also Published As

Publication number Publication date
ATE375234T1 (de) 2007-10-15
DK1595661T3 (da) 2008-02-11
EP1595661A1 (fr) 2005-11-16
DE102004024035A1 (de) 2005-12-08
DE502005001645D1 (de) 2007-11-22

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