EP3533076B1 - Commutateur de machine-outil - Google Patents

Commutateur de machine-outil Download PDF

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Publication number
EP3533076B1
EP3533076B1 EP17797085.2A EP17797085A EP3533076B1 EP 3533076 B1 EP3533076 B1 EP 3533076B1 EP 17797085 A EP17797085 A EP 17797085A EP 3533076 B1 EP3533076 B1 EP 3533076B1
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EP
European Patent Office
Prior art keywords
switching element
mode
raised portion
control device
operator control
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
EP17797085.2A
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German (de)
English (en)
Other versions
EP3533076A1 (fr
Inventor
Thomas Blatz
Lionel Barbier
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.)
Hilti AG
Original Assignee
Hilti AG
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Filing date
Publication date
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Publication of EP3533076A1 publication Critical patent/EP3533076A1/fr
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Publication of EP3533076B1 publication Critical patent/EP3533076B1/fr
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Classifications

    • 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
    • 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
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/024—Avoid unwanted operation

Definitions

  • the present invention relates to an operating device for a machine tool, in particular a grinding device, containing at least a first and second switching element, the first switching element being adjustable into a first and second mode and the second switching element being adjustable into a first and second mode, the first switching element being at least a first signaling means for respectively signaling the first or second mode and the second switching element contains at least a second signaling means for respectively signaling the first or second mode.
  • the on and off switch (also called an operating device) on hand-held machine tools usually requires two independent operations to activate the machine tool. Such a safety feature is particularly required for grinding and cutting devices.
  • the object of the present invention is therefore to provide an improved operating device for a machine tool.
  • the object is achieved by providing an operating device for a machine tool, in particular a grinding device, containing at least a first and second switching element, the first switching element being adjustable into a first and second mode and the second switching element being adjustable into a first and second mode, wherein the first switching element contains at least one first signaling means for respectively signaling the first or second mode and the second switching element contains at least one second signaling means for respectively signaling the first or second mode.
  • the operating device is designed such that the second switching element can only be set from the first mode to the second mode when the first switching element is set from the first mode to the second mode. This can effectively prevent the second mode of the second switching element from being activated accidentally or unintentionally by the user without first switching the first switching element from the first to the second mode. An unintentional or unwanted mode, e.g. switching on the machine tool, can be prevented in this way and safety when handling a machine tool can be increased.
  • an elastomer attachment with a first and second elevation is included, the first switching element comprising the first elevation and the second switching element comprising the second elevation, wherein a housing of the machine tool contains at least a first and second opening, the first The elevation can be operated through the first opening and the second elevation can be operated through the second opening, the first and second elevations each containing at least one projection element and the first and second openings each having a border, each border containing at least one recess, whereby In an assembled state of the operating device, the at least one projection element is positioned in the at least one recess in such a way that the first or second elevation is prevented from completely passing through the respective first or second opening. This can prevent a survey that detaches from the elastomer attachment from falling through the opening and being lost. Separation of a bump from the elastomeric attachment may be a result of excessive use.
  • the first and second signaling means can be exclusively an optical signaling means, ie a lamp, or exclusively an acoustic signaling means.
  • both the first and the second signaling means can be designed by an optical and acoustic signaling means.
  • the first signaling means can be an optical signaling means and the second signaling means to be an acoustic signaling means.
  • the second signaling means can be an optical signaling means and the first signaling means to be an optical signaling means is an acoustic signaling device.
  • the optical or acoustic signaling means can be designed in such a way that either a continuous or sustained signal (ie continuous light) or an interrupted signal (ie flashing) is emitted.
  • a membrane keyboard may be included with at least a first and second membrane button, the elastomer attachment being positioned in a first direction above the membrane keyboard, so that by a predetermined pressure force in a second direction on the first
  • the first membrane button can be activated on the survey and the second membrane button can be activated on the second survey.
  • a simple and cost-effective operating device can be designed, which at the same time has resistance to moisture (e.g. water) penetrating into the operating device.
  • a circuit board with micro buttons can also be used instead of the membrane keyboard.
  • the elastomer attachment has an edge region which has an elevation extending in one direction around an outer contour of the elastomer attachment in order to produce a sealing effect, in particular for the membrane keyboard, in an assembled state of the operating device.
  • This practically creates an integrated seal on the elastomer attachment. This means that additional sealing can be avoided.
  • the elevation extending around an outer contour of the elastomer attachment can also be referred to as a bead or edge.
  • the seal should be particularly effective against penetrating moisture.
  • the first switching element may be implemented by the first elevation on the elastomeric attachment and the first membrane button and the second switching element through the second elevation on the elastomeric attachment and the second membrane button and the elastomeric attachment being so is positioned to the first and second openings of the housing so that the first elevation can be operated through the first opening and the second elevation can be operated through the second opening.
  • the first mode of the first switching element corresponds to a blocking function and the second mode of the first switching element corresponds to an enabling function and wherein the first mode of the second switching element corresponds to a rest function and the second mode of the second switching element corresponds to a Work function corresponds.
  • the first switching element may be adjustable from the first mode to the second mode only when the first switching element is actuated for longer than a predetermined period of time. This can ensure that the first switching element does not unintentionally change from the first to the second mode if the first switching element is only actuated for less than a predetermined period of time.
  • the machine tool can be informed that the user is consciously operating the first switching element and also intends to change from the first to the second mode.
  • the first switching element may also be possible for the first switching element to be set from the second mode back to the first mode if the second switching element is only actuated after a predetermined period of time has elapsed. This can ensure that the first switching element does not remain permanently in the second mode and that the second switching element and thus the machine tool can be activated or adjusted to the second mode in the event of careless handling by a user.
  • the first signal means may be possible for the first signal means to display the first mode of the first switching element when the second switching element is actuated. This allows the user to be shown in a simple manner that in order to change the mode (i.e. from the first to the second mode) of the second switching element, the first switching element must first be brought from the first to the second mode.
  • the first signal means may indicate the second mode of the first switching element when the first switching element is actuated for longer than a predetermined period of time. This allows the user of the machine tool to be shown in a simple manner that the first switching element has been actuated long enough and the second mode is now set for the first switching element.
  • the second signal means may be possible for the second signal means to display the first mode of the second switching element, when the first switching element is in the second mode. This allows the user of the machine tool to be shown in a simple manner that the second switching element is now ready to be set from the first to the second mode.
  • Figure 1 shows an operating device 1 for a machine tool, in particular a grinder.
  • the machine tool can also be any other suitable machine tool.
  • the machine tool is not completely shown in the figures. Only part of the housing 2 of the machine tool is shown in the figures.
  • the operating device 1 essentially contains an elastomer attachment 3 and a membrane keyboard 4.
  • the elastomer attachment 3 essentially contains a base plate 5 and a number of elevations (cf. Figure 2 and 3 ).
  • the elastomer attachment 3 is made of a soft, flexible plastic.
  • the plastic can be silicone or the like.
  • the elastomer attachment 3 has a first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth and eleventh elevation 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 on.
  • the first, second, third and fourth elevations 6, 7, 8, 9 are each cylindrical and solid and each serve as an actuating element.
  • the fifth to eleventh surveys 10, 11, 12, 13, 14, 15, 16 serve as a display element.
  • the elastomer attachment 3 can also be provided with a hard cap in the area of the actuating elements.
  • the membrane keyboard 4 essentially contains a first, second, third and fourth membrane key 17, 18, 19, 20 as well as a first and second signaling means 21, 22. Furthermore, a light scale with five light levels 23 is included on the membrane keyboard 4.
  • the signaling means 21, 22, 23 are each designed in the form of an LED (light-emitting diode). At one end 4a, the membrane keyboard 4 has a ribbon cable 24 as an electrical connection.
  • the machine tool contains a housing 2, which essentially contains a first and second housing half 2a, 2b. Both the elastomer attachment 3 and the membrane keyboard 4 are positioned and held in an assembled state between the first and second housing halves 2a, 2b.
  • the first housing half 2a has eleven openings 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35.
  • the eleven openings 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 in the first housing half 2a serve to accommodate the eleven elevations 6, 7, 8, 9, 10, 11, 12, 13 , 14, 15, 16 of the elastomer attachment 3, so that a user can use the openings to activate the elevations 6, 7, 8, 9 designed as actuating elements.
  • first, second, third and fourth openings 25, 26, 27, 28 of the first housing half 2a have a border 36.
  • Each border 36 contains a first and second recess 36a, 36b.
  • each recess 36a, 36b does not extend over the entire height of the border 36, so that the recess 36a, 36b is essentially designed as a slot or notch in the border 36.
  • the first, second, third and fourth elevations 6, 7, 8, 9 each contain a first and second projection element 37, 38.
  • the first projection element 37 of the elevation 6, 7, 8, 9 is designed so that it fits into the respective first recess 36a, 36b of the opening 25, 26, 27, 28 can be inserted.
  • the second projection element 36a, 36b of the elevation 6, 7, 8, 9 is designed so that it can be inserted into the respective second recess 36b of the opening 25, 26, 27, 28. If the elevations 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 of the elastomer attachment 3 into the respective openings 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 , 35 of the first housing half 2a are accommodated, the projection elements 37, 38 are inserted into the respective recesses 36a, 36b. The interaction of the projection elements 37, 38 with the recesses 36a, 36b prevents a survey 6, 7, 8, 9, which detaches from the base plate 5 of the elastomer attachment 3, from falling through the opening 25, 26, 27, 28. As a result, an elevation 6, 7, 8, 9 detached from the base plate 5 is still held in the opening 25, 26, 27, 28 of the first housing half 2a and is therefore still functional. A elevation 6, 7, 8, 9 can become detached from the base plate 5 due to wear.
  • the elastomer attachment 3 and the membrane keyboard 4 are in an assembled state between the first and second housing halves 2a, 2b.
  • the first and second housing halves 2a, 2b are releasably connected to one another with a screw connection.
  • the elastomer attachment is located in a first direction A above the membrane keyboard 4. It should be noted that the elastomer attachment 3 is arranged or positioned above the membrane keyboard 4 in such a way that the elevations 6, 7, 8, 9 designed as an actuating element (first, second, third and fourth surveys) are each positioned accordingly in the direction A above the first, second, third and fourth membrane buttons 17, 18, 19, 20.
  • the membrane buttons 6, 7, 8, 9 located in the second direction B below the elastomer attachment 3 can be activated.
  • the fifth to eleventh elevations 10, 11, 12, 13, 14, 15, 16, designed as a display element are located above the signaling means of the membrane keyboard 4.
  • the material of the elastomer attachment 3 is translucent.
  • the upper surface of the elevation 10, 11, 12, 13, 14, 15, 16 is coated so that it is opaque.
  • the coating has been removed so that the light from the signaling means underneath can shine through. This allows the Users of the machine tool can see that the signaling means on the outside of the housing 2 of the machine tool light up.
  • a combination of an elevation 6, 7, 8, 9 (i.e. first to fourth elevation) designed as an actuating element with one of the first to fourth membrane buttons 17, 18, 19, 20 serves as a switching element.
  • the first switching element 40 therefore contains the first elevation 6 designed as an actuating element and the first membrane button 17.
  • the second switching element 50 contains the second elevation 7 designed as an actuating element and the second membrane button 18.
  • the first switching element 40 i.e. the combination of the first elevation 6 with the first membrane button 17
  • the first signal means 21 lights up several times, i.e. flashes, when the second switching element 50 is pressed without the first switching element 40 having previously been pressed for longer than the predetermined first time period. This function indicates to the user of the machine tool that in order to activate the machine tool, the first switching element 40 must first be pressed for the first period of time.
  • the first switching element 40 goes out and the second signal means 22 lights up for a predetermined second time period (approx. 3 to 5 seconds). While the second signal means 22 lights up for the second period of time, the second switching element 50 (i.e. the combination of the second elevation 7 with the second membrane button 18) can be pressed in the second direction B. By pressing or actuating the second switching element 50, the machine tool is finally activated, i.e. an electric motor located in the machine tool is switched on. The electric motor is not shown in the figures. However, if the second switching element 50 is not pressed within the second time period, the second signaling means 22 goes out while the first signaling means 21 lights up again and pressing the second switching element 50 no longer leads to activation of the machine tool.
  • a predetermined second time period approximately 3 to 5 seconds
  • the second switching element 50 is pressed again.
  • the first switching element 40 serves as a locking button and the second switching element 50 serves as the actual activation button (or on and off button).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Portable Power Tools In General (AREA)

Claims (8)

  1. Dispositif de commande (1) pour une machine-outil, en particulier une ponceuse, comprenant au moins un premier et un deuxième élément de commutation (40, 50), dans lequel le premier élément de commutation (40) peut être réglé sur un premier et un deuxième mode, et le deuxième élément de commutation (50) peut être réglé sur un premier et un deuxième mode, dans lequel le premier élément de commutation (40) comprend au moins un moyen de signalisation (21) pour signaler respectivement le premier ou le deuxième mode, dans lequel le dispositif de commande (1) est configuré de telle sorte que le deuxième élément de commutation (50) ne peut être réglé du premier mode au deuxième mode que lorsque le premier élément de commutation (40) a été réglé du premier mode au deuxième mode,
    caractérisé en ce que le deuxième élément de commutation (50) comprend au moins un deuxième moyen de signalisation (22) pour signaler respectivement le premier ou le deuxième mode, et en ce qu'une partie rapportée en élastomère (3) pourvue d'un premier et d'un deuxième élément en relief (6, 7) est incluse, dans lequel le premier élément de commutation (40) comprend le premier relief (6) et le deuxième élément de commutation (50) comprend le deuxième relief (7), dans lequel un carter (2) de la machine-outil comprend au moins une première et une deuxième ouverture (25, 26), dans lequel le premier relief (6) peut être commandé à travers la première ouverture (25) et le deuxième relief (7) peut être commandé à travers la deuxième ouverture (26), dans lequel le premier et le deuxième reliefs (6, 7) comprennent respectivement au moins un élément en saillie (37, 38), et la première et la deuxième ouverture (25, 26) présentent respectivement une bordure (36), dans lequel chaque bordure (36) comprend respectivement au moins un évidement (36a, 36b), dans lequel, dans un état assemblé du dispositif de commande (1), ledit au moins un élément en saillie (37, 38) est positionné dans ledit au moins un évidement (36a, 36b) de façon à empêcher un passage total du premier ou du deuxième relief (6, 7) à travers la première ou la deuxième ouverture (25, 26) respectivement.
  2. Dispositif de commande (1) selon la revendication 1, caractérisé en ce qu'il comprend un pavé de touches à membrane (4) pourvu au moins d'une première et d'une deuxième touche à membrane (17, 18), dans lequel la partie rapportée en élastomère (3) est disposée dans une première direction A au-dessus du pavé de touches à membrane (4) de sorte qu'une force de pression prédéterminée dans une deuxième direction B sur le premier relief (6) permet d'activer la première touche à membrane (17) et sur le deuxième relief (7) permet d'activer la deuxième touche à membrane (18).
  3. Dispositif de commande (1) selon la revendication 2, caractérisé en ce que le premier élément de commutation (40) est réalisé par le premier relief (6) sur la partie rapportée en élastomère (3), et la première touche à membrane (17) et le deuxième élément de commutation (50) sont réalisés par le deuxième relief (7) sur la partie rapportée en élastomère (3) et la deuxième touche à membrane (18), et dans lequel la partie rapportée en élastomère (3) est positionnée par rapport à la première et à la deuxième ouverture (25, 26) du carter (2) de telle sorte que le premier relief (6) peut être commandé à travers la première ouverture (25) et le deuxième relief (7) peut être commandé à travers la deuxième ouverture (26).
  4. Dispositif de commande (1) selon au moins l'une des revendications 1 à 3, caractérisé en ce que le premier mode du premier élément de commutation (40) correspond à une fonction de blocage et le deuxième mode du premier élément de commutation (40) correspond à une fonction de déblocage, et dans lequel le premier mode du deuxième élément de commutation (50) correspond à une fonction de veille et le deuxième mode du deuxième élément de commutation (50) correspond à une fonction de travail.
  5. Dispositif de commande (1) selon au moins l'une des revendications 1 à 4, caractérisé en ce que le premier élément de commutation (40) ne peut être réglé du premier mode au deuxième mode que si le premier élément de commutation (40) est actionné pendant plus longtemps qu'une durée prédéterminée.
  6. Dispositif de commande (1) selon au moins l'une des revendications 1 à 5, caractérisé en ce que le premier moyen de signalisation (21) indique le premier mode du premier élément de commutation (40) lorsque le deuxième élément de commutation (50) est actionné.
  7. Dispositif de commande (1) selon au moins l'une des revendications 1 à 6, caractérisé en ce que le premier moyen de signalisation (21) indique le deuxième mode du premier élément de commutation (40) lorsque le premier élément de commutation (40) est actionné pendant plus longtemps qu'une durée prédéterminée.
  8. Dispositif de commande (1) selon au moins l'une des revendications 1 à 7, caractérisé en ce que le deuxième moyen de signalisation (22) indique le premier mode du deuxième élément de commutation (50) lorsque le premier élément de commutation (40) se trouve dans le deuxième mode.
EP17797085.2A 2016-10-27 2017-10-25 Commutateur de machine-outil Active EP3533076B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16195891.3A EP3316270A1 (fr) 2016-10-27 2016-10-27 Commutateur de machine-outil
PCT/EP2017/077273 WO2018077929A1 (fr) 2016-10-27 2017-10-25 Dispositif commutateur pour machine-outil

Publications (2)

Publication Number Publication Date
EP3533076A1 EP3533076A1 (fr) 2019-09-04
EP3533076B1 true EP3533076B1 (fr) 2023-11-29

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EP16195891.3A Withdrawn EP3316270A1 (fr) 2016-10-27 2016-10-27 Commutateur de machine-outil
EP17797085.2A Active EP3533076B1 (fr) 2016-10-27 2017-10-25 Commutateur de machine-outil

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EP16195891.3A Withdrawn EP3316270A1 (fr) 2016-10-27 2016-10-27 Commutateur de machine-outil

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US (1) US11189437B2 (fr)
EP (2) EP3316270A1 (fr)
JP (1) JP2019534796A (fr)
CN (1) CN109891541B (fr)
WO (1) WO2018077929A1 (fr)

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JP7245692B2 (ja) * 2019-03-26 2023-03-24 株式会社やまびこ 電動作業機
EP4270432A1 (fr) * 2022-03-09 2023-11-01 Aptiv Technologies Limited Ensemble d'activation de fonction à deux commutateurs et procédé de protection contre une activation involontaire
CN116959900A (zh) * 2022-04-25 2023-10-27 苏州宝时得电动工具有限公司 电动工具

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US20130105187A1 (en) * 2011-11-02 2013-05-02 Max Co., Ltd. Rotary tool
DE202015007933U1 (de) * 2014-11-26 2015-12-07 Makita Corporation Elektrisch angetriebenes Gerät

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WO2018077929A1 (fr) 2018-05-03
EP3316270A1 (fr) 2018-05-02
CN109891541A (zh) 2019-06-14
US20190252133A1 (en) 2019-08-15
JP2019534796A (ja) 2019-12-05
CN109891541B (zh) 2021-10-15
US11189437B2 (en) 2021-11-30
EP3533076A1 (fr) 2019-09-04

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