EP1699601B1 - Outil electrique a commutation de controle double - Google Patents

Outil electrique a commutation de controle double Download PDF

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Publication number
EP1699601B1
EP1699601B1 EP04808841A EP04808841A EP1699601B1 EP 1699601 B1 EP1699601 B1 EP 1699601B1 EP 04808841 A EP04808841 A EP 04808841A EP 04808841 A EP04808841 A EP 04808841A EP 1699601 B1 EP1699601 B1 EP 1699601B1
Authority
EP
European Patent Office
Prior art keywords
switch
switch assembly
tool
operated
assembly
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.)
Expired - Fee Related
Application number
EP04808841A
Other languages
German (de)
English (en)
Other versions
EP1699601A1 (fr
Inventor
Jan Peter Houben
Peter Wanninkhof
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1699601A1 publication Critical patent/EP1699601A1/fr
Application granted granted Critical
Publication of EP1699601B1 publication Critical patent/EP1699601B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner

Definitions

  • the present invention relates to a switch assembly for electric tools according to the preamble of claim 1.
  • Such switch assemblies applied in tools are for instance known from US 2,263,136 and EP 1 125 698 .
  • the American patent shows a tool with a dual control member. The control members are coupled mechanically to a switch mechanism.
  • a switch is operated with a first control member arranged on the fixed body of the tool.
  • a second control member is arranged on a separate handle which can be coupled to the tool. When the handle is coupled to the tool, the first switch mechanism also becomes operable by means of the second control member.
  • US 6 079 865 discloses an electric mixer including a switch mechanism provided with a switch member in the form of a movable carrier for switching on and off the switch mechanism of the mixer.
  • the switch member can be operated manually by placing the operator's thumb on one of three scallops positioned along the switch member. Consequently, the switch member can be operated from three different positions.
  • the mixer also comprises locking means formed by the blocking impediment of a knob in the path of a sensory button provided at the movable carrier. Initially the impediment of the knob is to be overcome in order to be able to switch on the mixer. This will provide the operator an indication of the initiation of the operation of the mixer. Therefore the known locking means are operable so as to lock the switch mechanism in the switched-off mode of the mixer. The known switch member cannot be locked in the switched-on mode.
  • the switched-on mode can be deactivated with the first and the second control member.
  • the switch assembly comprises a release means, optionally formed by the locking means, for releasing the first switch mechanism from a switched-on mode, which mechanism can be operated at least by the first and the second control member.
  • a structurally inexpensive embodiment is created because the first and the second control member are both arranged on the same component connected mechanically to the first switch assembly.
  • the construction is further simplified when the component is supported for sliding movement in its lengthwise direction.
  • control member performs a different movement, such as a tilting movement.
  • the choice here depends of course on the type of movement with which the switch can be operated, the relative position between the control members and the switch, and ergonomic considerations for operation of the switch.
  • the invention provides the measure that the switch assembly comprises a second switch mechanism, that the second control member is adapted to operate the second switch mechanism, and that the first and the second switch mechanism are electrically connected to each other.
  • the switch mechanisms can herein be formed by mechanisms which, once they have been placed in the switched-on position, will maintain this until they are actively returned to their original position, although it is equally possible for the switches to be formed by switches which are only in switched-on mode when pressure is maintained on the control member.
  • the different types of switch require a different type of circuit. It is however also possible that the first switch mechanism can be electrically operated, and that the first and the second control member are each formed by a push button for electrical operation of the first switch mechanism.
  • the first switch mechanism herein fulfils a relay function.
  • both switch mechanisms can be embodied to perform an on/off function.
  • at least one of the switch elements can perform a regulating function, so that the rotation speed and/or the torque of the tool can be controlled.
  • the invention relates not only to a switch assembly according to the invention but also to an electric tool provided with such a switch assembly.
  • a specific application of the dual control switch according to the present invention is obtained when the tool is adapted to be held with at least a first and a second mutually differing position of a hand, and that the position of the control members is chosen so as to be operable in each of the positions of the holding hand without removing the holding hand from the tool.
  • a more specific application is obtained when the tool is adapted to enable handling only by the holding hand in the first position of the holding hand, and to be held by two hands in the second position of the holding hand.
  • the circuit shown in figure 1 comprises two two-way switches 1, 2 and an electric motor 3. Switches 1, 2 and electric motor 3 are connected in series. The motor is switched on or off by operating either of the switches.
  • Such a configuration just as the other configurations according to the present invention, can likewise be applied to three switches.
  • Such a circuit is shown in figure 2 .
  • a bipolar two-way switch 4 is here added to the two two-way switches 1, 2. It is here also possible to switch motor 3 on or off by operating any of the switches.
  • FIG. 3 shows a circuit wherein the electric motor 3 is connected in series to make contacts 5 of a relay 6.
  • Relay 6 can be operated by means of two push-buttons 7, 8 connected in parallel. It will be apparent that a greater number of push-buttons can be applied instead of two push-buttons.
  • Lever 11 is connected to a slidable switch member 12 which is urged to the left by means of a spring 13, whereby switch 10 is normally switched off at all times.
  • lever 11 By pushing switch member 12 to the right counter to the spring pressure of spring 13, lever 11 moves switch 10 to its switched-on mode.
  • Slide member 12 extends over a large distance. This slide member can hereby be operated at two different locations, so that it in fact forms two control members.
  • the slide member On the right-hand side the slide member is provided with a hook 14 which is connected pivotally to the slide member and which can be hooked behind a protrusion 15 forming part of switch housing 16. Slide member 12 can hereby be locked in its right-hand position. Hook 14 is part of the locking means.
  • This construction has the further advantage that the mode of the switches is visible. In addition, when the first switch is in the off position, the second switch will also always indicate the off-mode. No confusion can therefore result.
  • control member 17 which releases the hook 14 relative to protrusion 15, so that slide member 12 can be moved once again to the left.
  • control member 17 is connected to a second control member 18 by means of a lever 19.
  • Direct operation herein takes place from both operating positions by moving slidable switch member 12 to the right.
  • the tool can be switched off/released irrespective of which control member activated the locked position.
  • FIG. 5 shows a right-angle grinder 20 in which a motor 21 is arranged which is mounted on a shaft 22. This latter is mounted by means of bearings 23 in housing 24 of right-angle grinder 20. At one of its ends the shaft 22 is provided with a bevel gear 25 which is in engagement with a second bevel gear 26 which is fixed to a shaft 27 to which a grinding stone can be attached. Shaft 27 is mounted in housing 24 by means of bearings.28.
  • a switch mechanism 29 which can be operated by means of a protrusion 31 fixed to a slidable switch member 30.
  • Switch 29 can be operated by sliding switch member 30 in the direction of arrows 32 in figure 6 . Both arrows 32 moreover indicate the positions of the locations at which switch member 30 can be operated.
  • the switch member is provided on its forward end with a tiltably mounted hook 33 which can hook round a protrusion 34 fixed to housing 24.
  • a draw spring 35 is tensioned between hook 33 and housing 24 to urge the hook 33 to the locking position.
  • switch member 30 when switch member 30 is moved to the position furthest to the right in the drawings, which is shown in figure 7 , switch member 30 is locked in this position, wherein switch mechanism 29 is switched on and the tool is activated.
  • release elements 36, 37 respectively which are arranged on switch member 30 and which are each arranged tiltably relative to switch member 30.
  • the grinder in question can be held in two different ways.
  • the grinder In a first way of holding, the grinder is held with only one hand, wherein use is made of the position furthest to the right in figures 6 and 7 . It is also possible to hold the grinder with two hands, wherein one hand is placed in a position such that it can operate the switch member in the position furthest to the left.
  • Figure 8 shows a cross-section of a hand tool which can be operated from two sides of the housing.
  • the tool can hereby be used by right and left-handed users.
  • the tool comprises a housing 45 in which a switch 41 is arranged.
  • a switch 41 mounted on the switch is a T-shaped lever 42 with which the switch can be operated.
  • the lever comprises for this purpose two distal ends 43, 44 respectively, each of which protrude through an opening 46, 47 respectively arranged in housing 45.
  • the switch can be operated between the switched-off position drawn in full lines in the figure and the switched-on position of switch 41 drawn with broken lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)

Claims (22)

  1. Ensemble de commutation pour outils électriques, comprenant au moins un premier mécanisme de commutation (29) doté d'un élément de commutation (12, 30) et au moins un premier et un second élément de commande manuel (17, 18 ; 36, 37) agencés sur l'élément de commutation, pour au moins mettre en marche et arrêter le premier mécanisme de commutation (10 ; 29), dans lequel le mode de mise en marche peut être désactivé avec le premier élément de commande (18 ; 36) et le second élément de commande (17 ; 37), et doté de moyen de blocage (14; 33) qui est adapté pour bloquer l'élément de commutation (12 ; 30), caractérisé en ce que le moyen de blocage est adapté pour bloquer l'élément de commutation (12 ; 30) dans le mode de mise en marche.
  2. Ensemble de commutation selon la revendication 1, comprenant un premier et un second élément de déclenchement (18, 17 ; 36, 37), chacun étant adapté pour débloquer l'élément de commutation (30) lorsqu'il est actionné, dans lequel le moyen de blocage est adapté pour débloquer l'élément de commutation (30) en relâchant le premier ou le second élément de déclenchement (18, 17 ; 36, 37).
  3. Ensemble de commutation selon la revendication 2, dans lequel le premier et le second élément de déclenchement (36, 37) sont agencés de manière inclinée par rapport à l'élément de commutation (30).
  4. Ensemble de commutation selon les revendications 2 ou 3, dans lequel un ou plusieurs éléments de déclenchement (36, 37) sont formés par les premier et second éléments de commande.
  5. Ensemble de commutation selon l'une quelconque des revendications 1 à 4, dans lequel l'élément de commutation est un élément de commutation coulissant (12 ; 30).
  6. Ensemble de commutation selon l'une quelconque des revendications 1 à 5, comprenant un ressort (13) adapté pour pousser l'élément de commutation (12) dans une position correspondant au mode d'arrêt.
  7. Ensemble de commutation selon la revendication 2, dans lequel les premier et second éléments de déblocage (18, 36 ; 17, 37) sont couplés de manière mécanique.
  8. Ensemble de commutation selon la revendication 7, dans lequel les éléments de déclenchement sont couplés par un levier (19, 38).
  9. Ensemble de commutation selon l'une quelconque des revendications précédentes, dans lequel l'élément de commutation (12, 30) peut être actionné dans une pluralité de positions afin de mettre en marche et d'arrêter le premier mécanisme de commutation (10 ; 29) et dans lequel l'élément de commutation (12 ; 30) peut être actionné dans une pluralité de positions afin de débloquer les moyens de blocage.
  10. Ensemble de commutation selon la revendication 1, dans lequel les moyens de blocage peuvent être actionnés avec les premier et second éléments de commande afin d'activer ou de désactiver le mode de mise en marche.
  11. Ensemble de commutation selon l'une quelconque des revendications 1 à 10, dans lequel les premier et second éléments de commande sont tous deux agencés sur le même corps.
  12. Ensemble de commutation selon la revendication 11, dans lequel le corps est supporté pour le mouvement coulissant dans la direction de sa longueur.
  13. Ensemble de commutation selon la revendication 11 ou 12, dans lequel le corps est raccordé mécaniquement au premier mécanisme de commutation (29).
  14. Ensemble de commutation selon l'une quelconque des revendications précédentes, dans lequel le premier et le second élément de commande peuvent tous deux être bloqués dans la position dans laquelle le premier mécanisme de commutation (29) est mis en marche.
  15. Ensemble de commutation selon l'une quelconque des revendications 1 à 14, dans lequel le premier mécanisme de commutation peut être actionné mécaniquement, et en ce que le premier et le second élément de commande sont tous deux couplés mécaniquement au premier mécanisme de commutation (29).
  16. Ensemble de commutation selon l'une quelconque des revendications 1 à 15, dans lequel un seul des éléments de commande peut être bloqué.
  17. Outil électrique caractérisé en ce qu'il comprend un ensemble de commutation selon l'une quelconque des revendications précédentes.
  18. Outil électrique selon la revendication 17, caractérisé en ce que le corps s'étend parallèlement à une paroi du boîtier de l'outil à main.
  19. Outil électrique selon la revendication 17 ou 18, caractérisé en ce que l'outil est adapté pour être maintenu avec au moins une première et une seconde position différentes d'une main et en ce que la position des éléments de commande est choisie afin de pouvoir fonctionner dans chacune des positions de la main de maintien sans retirer la main de maintien de l'outil.
  20. Outil électrique selon la revendication 19, caractérisé en ce que l'outil électrique est formé par un outil à main.
  21. Outil électrique selon la revendication 20, caractérisé en ce que l'outil est adapté pour permettre la manipulation uniquement par la main de maintien dans la première position de la main de maintien, et être maintenu par les deux mains dans la seconde position de la main de maintien.
  22. Outil électrique selon la revendication 21, caractérisé en ce que l'outil est formé par une meuleuse d'angle (20).
EP04808841A 2003-12-30 2004-12-30 Outil electrique a commutation de controle double Expired - Fee Related EP1699601B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1025144A NL1025144C2 (nl) 2003-12-30 2003-12-30 Elektrisch gereedschap met dubbel bedienbare schakelaar.
PCT/NL2004/000925 WO2005063451A1 (fr) 2003-12-30 2004-12-30 Outil electrique a commutation de controle double

Publications (2)

Publication Number Publication Date
EP1699601A1 EP1699601A1 (fr) 2006-09-13
EP1699601B1 true EP1699601B1 (fr) 2008-04-16

Family

ID=34738086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04808841A Expired - Fee Related EP1699601B1 (fr) 2003-12-30 2004-12-30 Outil electrique a commutation de controle double

Country Status (6)

Country Link
EP (1) EP1699601B1 (fr)
CN (1) CN100484724C (fr)
DE (1) DE602004013191T2 (fr)
NL (1) NL1025144C2 (fr)
RU (1) RU2360318C2 (fr)
WO (1) WO2005063451A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047795A1 (de) * 2004-09-29 2006-04-06 Robert Bosch Gmbh Schleifhandwerkzeugmaschine, insbesondere Akkuschleifhandwerkzeugmaschine
JP5255959B2 (ja) * 2008-09-03 2013-08-07 株式会社マキタ 作業工具
JP5394895B2 (ja) * 2009-11-11 2014-01-22 株式会社マキタ 電動工具
DE102013221915A1 (de) 2013-10-29 2015-04-30 Robert Bosch Gmbh Netzbetriebene Handwerkzeugmaschine
US9701006B2 (en) * 2014-02-20 2017-07-11 Ingersoll-Rand Company Power tools with reconfigurable secondary switch

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263136A (en) * 1939-05-20 1941-11-18 Stanley Works Handle structure for portable saws
IT7922984V0 (it) * 1979-10-29 1979-10-29 Star Utensili Elett Utensile elettrico portatile con comandi perfezionati.
CN87205064U (zh) * 1987-06-04 1988-07-20 胡建明 小型琴键开关
DE19507955A1 (de) * 1995-03-07 1996-09-12 Jan Nieberle ESW-Ergonomischer Sicherheits-Winkeltrennschleifer
GB2327054A (en) * 1997-07-08 1999-01-13 Black & Decker Inc Shaft locking
US6079865A (en) * 1998-04-10 2000-06-27 Hp Intellectual Corp. Electric mixer
US6443675B1 (en) * 2000-02-17 2002-09-03 Roto Zip Tool Corporation Hand-held power tool
CN2498724Y (zh) * 2001-02-28 2002-07-03 宁波华迪工贸有限公司 一种电动螺丝刀的开关联锁机构
CN2539269Y (zh) * 2001-12-19 2003-03-05 杨法德 电动工具控制开关

Also Published As

Publication number Publication date
RU2006127410A (ru) 2008-02-10
RU2360318C2 (ru) 2009-06-27
CN100484724C (zh) 2009-05-06
CN1902030A (zh) 2007-01-24
DE602004013191D1 (de) 2008-05-29
EP1699601A1 (fr) 2006-09-13
NL1025144C2 (nl) 2005-07-04
DE602004013191T2 (de) 2009-06-25
WO2005063451A1 (fr) 2005-07-14

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