EP3774178B1 - Commutateur pour machine-outil et logique de commutation - Google Patents

Commutateur pour machine-outil et logique de commutation Download PDF

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Publication number
EP3774178B1
EP3774178B1 EP19711605.6A EP19711605A EP3774178B1 EP 3774178 B1 EP3774178 B1 EP 3774178B1 EP 19711605 A EP19711605 A EP 19711605A EP 3774178 B1 EP3774178 B1 EP 3774178B1
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EP
European Patent Office
Prior art keywords
switch
machine tool
drive
pressure surface
speed value
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
EP19711605.6A
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German (de)
English (en)
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EP3774178A1 (fr
Inventor
Thomas Blatz
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
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Hilti AG
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Publication date
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Publication of EP3774178A1 publication Critical patent/EP3774178A1/fr
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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
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • 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
    • 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
    • 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
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools

Definitions

  • the present invention relates to a method for controlling a machine tool, in particular a grinding device, wherein the machine tool comprises a control device, a drive, a tool driven by the drive, for example an abrasive, an actuating switch and a locking switch.
  • the present invention relates to a machine tool, in particular in the form of a grinding device, for carrying out the method according to the invention.
  • Machine tools usually have an actuation switch with which the machine tool or the drive of the machine tool can be activated or deactivated.
  • the actuation switch is usually a push button switch without a latching function, which must be continuously pressed by a user in order to be activated.
  • the actuation switch may remain permanently actuated to activate the machine tool, even when pressure is no longer exerted on the actuation switch.
  • the object of the present invention is to solve the problem described above and to provide a method for controlling a machine tool and a machine tool for carrying out the method.
  • the object is achieved by a method for controlling a machine tool, in particular a grinding device, wherein the machine tool comprises a control device, a drive, a tool driven by the drive, for example an abrasive, an actuating switch and a locking switch.
  • the machine tool comprises a control device, a drive, a tool driven by the drive, for example an abrasive, an actuating switch and a locking switch.
  • the locking switch can also be referred to as a locking switch.
  • the predetermined time period can be between 0.5 and 3 seconds and in particular one second. However, it is also possible that the time period can be extended or shortened using an interface (also called MMI - Man-Machine Interface) on the housing of the machine tool and with the help of the control device.
  • the first speed value and the second speed value may be identical.
  • the first speed value and the second speed value may be different.
  • the first speed value can be 2625 rpm and the second speed value can be 5250 rpm.
  • the actuation switch and the locking switch are designed as a common switch device.
  • this one switch device can be formed by two larger pressure surfaces that correspond to the individual actuation switch and the locking switch.
  • a first pressure surface can correspond to the actuation switch, while the second pressure surface corresponds to the locking switch.
  • the two pressure surfaces can be connected to one another by a narrower central web.
  • the common switch device is designed as a rocker or rocker switch.
  • the rocker can in particular be referred to as a continuous rocker, since the two pressure surfaces are connected to one another by the central web and the one common switch device thus has a continuous surface.
  • the common, continuous surface is made up of the three partial surfaces that are associated with the two pressure surfaces and the central web.
  • the pressure surfaces can also be referred to as buttons or keys.
  • the buttons are advantageously designed to take on the functions of the actuation switch and the locking switch.
  • the use of the machine tool is possible in particular in working mode.
  • the working mode in contrast to the activation mode, enables the continuous operation of the machine tool.
  • the machine tool runs in a "momentary on” state in the working mode, while the machine tool operates in a "lock on” state in continuous operation.
  • the user can remove his finger from the second pressure surface while working with the machine tool, since the machine tool advantageously remains in the working mode even without permanent actuation of the second pressure surface.
  • the working mode of the machine tool corresponds to the predetermined second speed value.
  • the activation mode of the machine tool preferably corresponds to the predetermined first speed value.
  • the machine tool is preferably switched off and the speed value is zero.
  • it is preferred that the machine tool can be switched off or transferred to the deactivation mode by actuating the first or the second pressure surface.
  • the machine tool can be switched from the working mode to the deactivation mode by actuating the first or the second pressure surface.
  • the machine tool switches itself off automatically or brings about a deactivation mode if the second pressure surface of the rocker switch device is not actuated within a predetermined period of time after the deactivation of the first pressure surface.
  • the first pressure surface of the switch device which preferably corresponds to the actuation switch, can be designed as an "I/O button".
  • the second pressure surface of the switch device which preferably corresponds to the locking switch, can be designed as a "locking switch”.
  • the first pressure surface and the second pressure surface can be combined to form a continuous rocker.
  • the rocker can be integrated in an elastomer mat or can be designed mechanically.
  • the provision of a light source between the actuating switch and the locking switch can be dispensed with.
  • the feedback regarding the operating state of the machine tool is preferably provided with the aid of a second light source, which is preferably located above the second pressure surface of the common rocker switch device. can be arranged.
  • the second light source is arranged between the second pressure surface and the preferably adjacent third and fourth switches.
  • the third and fourth switches of the proposed tool handle of the machine tool are preferably designed to select a gear for the operation of the machine tool.
  • the feedback can be provided, for example, by the second light source flashing at regular intervals or with a certain frequency as long as the machine tool is in a temporary activation mode.
  • This state of the machine tool is preferably referred to as the "hold to run" function or state of the first pressure surface of the switch device.
  • the second light source can also light up continuously as soon as the second pressure surface of the rocker switch is pressed. In the deactivation mode, the second light source is preferably switched off.
  • the machine tool can be in a first state when the machine tool is connected to a power source. In this first state, preferably neither the actuation switch nor the locking switch is pressed. If the handle of the machine tool has a common switch device, preferably neither the first pressure surface nor the second pressure surface is pressed. In this first state, it is preferred in the sense of the invention that the light source or the LED on the handle of the machine tool does not light up. In this first state, the machine tool is preferably in deactivation mode.
  • the machine tool can be brought into a second state by actuating the actuation switch or the first pressure surface of the rocker switch.
  • the motor of the machine tool begins to operate, in particular operating in a "hold to run” state, which is also referred to as "temporary operation" in the sense of the invention.
  • the light source or the LED can indicate by flashing that the machine tool is ready to be put into a working mode.
  • the flashing can occur, for example, at a frequency of 1 Hz, but is not limited to this.
  • the duration of the "hold to run” state can be limited, for example, to a duration of 1 second.
  • the second state preferably corresponds to the activation mode of the machine tool.
  • the machine tool preferably operates not only temporarily, but permanent.
  • This state is referred to as the third state of the machine tool, the third state preferably corresponding to the working mode.
  • the third state can be indicated by a permanent glow of the light source or the LED on the handle of the machine tool.
  • the third state can preferably be ended by pressing either the actuation switch or the locking switch.
  • the handle of the machine tool has a rocker switch
  • the deactivation state can be restored, which can be indicated by the light source or the LED no longer lighting up.
  • the invention in its design with the rocker switch enables the provision of an increased level of safety, since the pressed second button particularly effectively prevents the machine tool from being switched on unintentionally and permanently.
  • the one light source or LED can advantageously be used to display faults and/or fault messages.
  • a flashing light source or LED indicates that the machine tool is in "hold to run" mode, while a permanent light preferably indicates continuous operation of the machine tool.
  • the machine tool or its handle comprises at least one light source for displaying a standby state of the machine tool.
  • the standby states can be, for example, the first, second and third states of the machine tool or the activation mode, the deactivation mode and the working mode, with the activation mode preferably corresponding to the "hold to run" mode of the machine tool.
  • a particular advantage of the invention is that the machine tool can be operated with the same switching logic, regardless of whether the machine tool has an actuation switch and a locking switch or a common switch device.
  • the object underlying the present invention is achieved by a machine tool for carrying out the method, wherein the machine tool comprises a control device, a drive, a tool driven by the drive, for example an abrasive, an actuating switch and a locking switch.
  • the machine tool is characterized in that when the actuating switch is deactivated, no more force is exerted on the actuating switch in the direction (N) and the drive can be set to a first predetermined speed value for a predetermined period of time.
  • the machine tool, the actuating switch and the locking switch form a common switch device, which is preferably designed as a rocker switch.
  • the actuating switch and the locking switch can each be formed by a pressure surface which are connected to one another via a central web.
  • Figure 1 and 2 show a portion of a machine tool 1 in the form of a grinding device.
  • the machine tool 1 it is also possible for the machine tool 1 to be designed as a drill, saw or the like.
  • the machine tool 1 essentially contains a housing 2, a drive, a gear, a drive shaft, a tool holder, an energy source and a control device.
  • the drive can be designed, for example, in the form of a brushless electric motor.
  • the drive is positioned in the housing 2 in such a way that a torque generated by the drive is transmitted to the tool via the drive shaft and the tool holder.
  • the control device controls or regulates all functions of the machine tool 1 and in particular the functions of the drive.
  • the energy source serves to supply the electrical consumers of the machine tool 1 with electrical energy. An electrical consumer is in particular the drive.
  • the energy source can be designed in the form of an accumulator (also called a battery).
  • the energy source designed as an accumulator can be connected to the housing 2 of the machine tool 1.
  • the energy source can also be implemented as a power cable for detachably connecting the machine tool 1 to a mains power connection (i.e. socket).
  • the control device controls and regulates in particular the supply of electrical energy to the drive, i.e. with electrical current, whereby the speed of the drive designed as an electric motor is specifically controlled or regulated.
  • the drive, the gear, the drive shaft, the tool holder, the energy source, the control device and the tool are not shown in the figures.
  • the partial area shown is a rear portion of the housing 2 of the machine tool 1 and in particular one of the handles of the machine tool 1 designed as a grinding device.
  • the handle serves to hold and guide the machine tool 1.
  • a further handle is provided on a front section of the machine tool 1 designed as a grinding device.
  • a first, second, third and fourth switch 3, 4, 5, 6 is positioned on the handle of the machine tool 1.
  • the first, second, third and fourth switches 3, 4, 5, 6 are each designed as a pressure switch.
  • a multi-stage scale S is also provided on the handle.
  • the first switch 3 is an actuation switch 7, by means of which the machine tool 1 can be selectively and reversibly placed in an activation or deactivation mode.
  • the actuation switch 7 can also be referred to as an "I/O button".
  • the control device ensures that the drive is activated by the supply of electrical energy (i.e. supply of current) from the energy source, whereby a torque is generated by the drive.
  • the actuation switch 7 can preferably be formed by a first pressure surface 13 if the functions of the actuation switch 7 and the locking switch 8 are taken over by a common switch device 11, which is preferably formed by a rocker switch.
  • a corresponding signal is sent from the actuation switch 7 to the control device.
  • the machine tool 1 is switched off, so that no more work can be done with it.
  • the control device is still active for a certain time, even if the drive has already been shut down.
  • the actuating switch 7 is connected to the control device by means of lines (not shown) for signal transmission.
  • a certain force or pressure is exerted by a user of the machine tool 1 in the direction of arrow N on the surface of the actuating switch 7 or the first pressure surface 13 of the common switch device 11, so that the actuating switch 7 is moved in the direction of arrow N.
  • the actuating switch 7 moves back against the direction of arrow N to the starting position.
  • the actuating switch 7 can be designed for this purpose with a corresponding spring (not shown).
  • the actuating switch 7 can also be designed from an elastic material, e.g. rubber.
  • the machine tool 1 is generally only activated as long as the actuating switch 7 or the first pressure surface 13 of the common switch device 11 remains pressed in the direction of arrow N.
  • the actuating switch 7 is therefore not a switch with a latching function which remains in a desired (i.e. pressed) position when pressed once.
  • the second switch 4 is a locking switch 8, which serves to lock the machine tool 1 or the control device and the drive in the activation mode.
  • the locking switch 8 can be designed as a second pressure surface 14 of a rocker switch 11. After the locking switch 8 has been activated, the machine tool 1 as well as the control device and the drive remain in the activation mode, even if the actuation switch 7 is no longer pressed or no force is exerted on the actuation switch 7 in the direction of arrow N. This represents a significant advantage of the invention, which solves the problem of providing a machine tool 1 that can be used by a user without the need for permanent actuation of a pressure surface (13 or 14).
  • the locking switch 8 as well as the actuation switch 7 can be used to switch the machine tool 1 from the activation mode to the deactivation mode.
  • the rocker switch 11 can be used for this purpose.
  • the locking switch 8 by operating the locking switch 8, for example, the machine tool 1 is switched from the activation mode to the deactivation mode.
  • a certain force or a certain pressure is exerted by a user of the machine tool in the direction of arrow N on the surface of the locking switch 8, so that the locking switch 8 is moved in the direction of arrow N.
  • FIG 4 The graphic shows the situation in which the operating switch 7 or the first pressure surface 13 of the common switch device 11 is pressed by the user for six seconds. For six seconds, the machine tool 1 as well as the control device and the drive are thus in activation mode. Within the first second, the speed of the drive, which is designed as an electric motor, increases linearly from zero to 5250 revolutions per minute (rpm). For five seconds, the speed of the drive remains constant at 5250 rpm. From the sixth second onwards, no more force or pressure is exerted by the user on the operating switch 7. After the operating switch 7 is no longer pressed, the speed for the drive remains at the value of 5250 rpm. Only after one second, i.e.
  • the graphic in Figure 4 The curve shown represents the situation in which the actuation switch 7 is pressed by the user for only a period of six seconds and the machine tool 1 is accordingly in an activation mode for a total of nine seconds.
  • FIG. 5 The graphic shows a situation in which the user presses or operates the actuation switch 7 or the first pressure surface 13 of the common switch device 11 for only 0.8 seconds.
  • the speed for the drive designed as an electric motor increases from zero to a value of 2625 rpm in the period from zero to 0.75 seconds.
  • the speed remains constant at 2625 rpm for a total of one second, i.e. for the period from 0.75 to 1.75 seconds. From 1.5 seconds onwards, the speed value drops from 2625 rpm to zero.
  • the drive finally stops at 2.5 seconds and the machine tool 1 and the drive switch from the activation mode to the deactivation mode.
  • FIG. 6 The graphic shows a situation in which the user presses or operates the actuation switch 7 or the first pressure surface 13 of the common switch device 11 for only 6 seconds.
  • the speed value for the drive increases linearly from zero to 5250 rpm within one second.
  • the actuation switch 7 remains pressed for a total of 6 seconds.
  • the machine tool 1 as well as the control device and the drive thus change from the deactivation state to the activation mode.
  • the locking switch 8 is pressed once by the user.
  • the machine tool 1 and the drive remain in the activation mode or can be transferred to a working mode by the user.
  • the speed value for the drive remains as before at 5250 rpm.
  • the actuation switch 7 is pressed again. By actuating the actuation switch 7 again, the machine tool 1 and the drive change from the activation mode to the deactivation mode.
  • the locking switch 8 can also be operated to switch the machine tool 1 and the drive from the activation mode to the deactivation mode.
  • the speed value for the The drive drops linearly from 5250 rpm to zero within one second. After the seventeenth second the drive stops.
  • FIG. 7 The graphic shows a situation in which the user presses or operates the actuation switch 7 or the first pressure surface 13 of the common switch device 11 for just 0.75 seconds.
  • the machine tool 1 and the drive switch from the deactivation mode to the activation mode.
  • the speed value simply increases from zero to 2625 rpm.
  • the speed for the drive remains at 2625 rpm.
  • the locking switch 8 or the second pressure surface 14 of the common switch device 11 is pressed once by the user.
  • the speed value for the drive increases linearly from 2625 to 5250 rpm.
  • the actuation switch 7 is pressed again.
  • the machine tool 1 and the drive change from the activation mode to the deactivation mode.
  • the locking switch 8 can also be operated to switch the machine tool 1 and the drive from the activation mode to the deactivation mode.
  • the speed value for the drive falls linearly and within two seconds from 5250 rpm to zero. From the seventeenth second, the drive stops.
  • the housing 2 of the machine tool 1 is designed such that the actuating switch 7 is located in a recess 10. If the actuating switch 7 and the locking switch 8 are formed by a common switch device 11, it is also preferred that the rocker switch is located in a recess 12.
  • the surface of the actuating switch 7 can be positioned lower in the direction N than the surface of the housing 2 of the machine tool 1.
  • the distance D between the surface of the actuating switch 7 and the surface of the housing 2 of the machine tool 1 is, for example, between 5 and 20 mm.
  • a recess of the actuating switch with a depth or height in a range of 1 to 15 mm is particularly preferred. In a particularly advantageous embodiment, the distance D is 10 mm.
  • the edge surfaces 9 of the recess 10 on the surface of the machine tool 1 are bevelled and inclined towards the actuating switch 7. As in Figure 3 As shown, the inclination of the bevelled edge surfaces is designed such that a circle with the radius R rests at individual points of the edge surfaces as well as at an individual point on the surface of the actuating switch 7.
  • This special design of the recess 10 in the surface of the actuating switch 7 serves to make it more difficult to actuate the actuating switch 7 and thus to prevent it from being actuated accidentally. A user must insert a finger into the recess in the housing 2 in order to actuate the actuating switch 7 deliberately and intentionally.
  • the recess serves to prevent the actuating switch 7 from being actuated accidentally when the machine tool 1 is placed upside down on a surface, i.e. on the surface of the housing 2 on which the actuating switch 7 is located. Uneven surfaces, such as stones on the surface, cannot trigger the actuating switch 7 due to the special recess in the actuating switch.
  • all or individual switches - except for the recessed actuating switch 7 or the first pressure surface 13 of the switch device 11 - can be designed to be raised.
  • the switches are preferably connected in such a way that the actuating switch 7 or the first pressure surface 13 of the switch device 11 is only active when no other switch is pressed at the same time.
  • the actuating switch 7 and the locking switch 8 are formed by a common switch device 11.
  • the surface of this common switch device 11 can be flat or level.
  • the rocker switch 11 has depressions in the surface in the area of the first pressure surface 13 and the second pressure surface 14, which depressions are advantageously designed to guide the finger of a user. This preferably allows the user to orientate themselves better on the surface of the common switch device and operate the rocker switch 11 particularly accurately.
  • the third and fourth switches 5, 6 are gear selector switches with which the individual gears of the machine tool's transmission can be selected.
  • the selection and engagement of the gears is preferably carried out electronically.
  • the multi-stage scale S consists of several light sources (e.g. LEDs) and indicates which gear is engaged in the transmission or in the engine electronics by the lighting up of the individual light sources.
  • the Figure 1 It can be seen that above the actuating switch 7 there is a first light source 17 in the form of an LED and above the locking switch 8 there is a second Light source 18 is positioned in the form of an LED.
  • the first light source 17 lights up when the actuation switch 7 is pressed and the machine tool 1 is switched from the deactivation mode to the activation mode.
  • the second light source 18 lights up when the locking switch is pressed and the machine tool is locked in the activation mode.
  • the first light source 17 and the second light source 18 can optionally be used to indicate faults.
  • a temporary error in the machine tool 1 can be indicated by a flashing code.
  • a temporary error can be, for example, overheating.
  • a permanent error can preferably be indicated by one of the two light sources 17, 18 lighting up continuously.
  • a permanent error can be, for example, a service request.
  • the light sources 17, 18 are bicolored. In the sense of the invention, this preferably means that the light sources 17, 18 are designed to emit light in at least two different colors, for example red and green. For example, the color "green" can be used for the regular display of the operating state and the color "red" for the display of faults.
  • the bicolor effect can be achieved either by multi-colored lamps or by different colored, individual lamps under a common light guide body.
  • the provision of the light source 17 can be dispensed with.
  • the above then applies analogously to the sole light source 18.
  • the light sources 17, 18 are formed by light emitting diodes (LEDs) or comprise such.
  • switches (3-8, 13, 14) and/or light sources 17, 18 themselves or adjacent areas may be provided with symbols or labels.
  • Figure 8 shows a preferred embodiment of the machine tool 1, in particular the handle (shown with the reference numeral 15 in Figure 9 ) of the machine tool 1.
  • the common switch device 11 which comprises a first pressure surface 13 and a second pressure surface 14, as well as a central web that connects the two pressure surfaces (13, 14) to one another.
  • the common switch device 11 is a rocker switch.
  • the handle 15 of the machine tool 1 comprises only one light source, which can be, for example, the second light source 18.
  • This one light source 18 can, for example, be located between the second pressure surface 14, which preferably corresponds to the locking switch 8, and the third switch 5 and the fourth switch 6.
  • Figure 9 shows a side view of a preferred embodiment of the handle 15 of the machine tool 1.
  • the light source 18 can be seen, which can preferably be connected to an integrated light source 19.
  • the integrated light source 19 can be formed, for example, by a light emitting diode (LED).
  • Figure 9 the arrangement of the first pressure surface 13 and the second pressure surface 14 of the rocker switch 11.
  • the second pressure surface 14 can be connected to a second micro button 22, while the first pressure surface 13 of the common switch device 11 can be connected to a first micro button 20.
  • the pivot point 21 of the rocker 11 or the rocker switch 11 can be located between the two micro buttons (20, 22).
  • the switches (7, 8) or the pressure surfaces (13, 14) can preferably interact with the micro buttons (20, 22).
  • the common switch device 11 As a rocker switch, either the first pressure surface is recognized as pressed by the machine tool 1 or the second pressure surface 14, but not both pressure surfaces (13, 14) at the same time.
  • the common switch device 11 preferably has a pivot point 21 for the rocker switch.
  • the rocker switch 11 can be located in a recess 12. It is also preferred that the switches (7, 8) or the pressure surfaces (13, 14) are components of the handle 15 of the machine tool 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Portable Power Tools In General (AREA)

Claims (14)

  1. Procédé de commande d'un outillage (1), en particulier d'une meuleuse, l'outillage (1) comprenant un dispositif de commande, un ensemble d'entraînement, un outil entraîné par l'ensemble d'entraînement, par exemple un moyen abrasif, un commutateur d'actionnement (7) ainsi qu'un commutateur de verrouillage,
    caractérisé par les étapes suivantes :
    - activer le commutateur d'actionnement (7) en exerçant une force dans une direction (N) sur le commutateur d'actionnement (7) pour faire passer l'outillage (1) d'un mode de désactivation à un mode d'activation, de sorte que l'ensemble d'entraînement est réglé à une première valeur de vitesse prédéterminée ;
    - désactiver le commutateur d'actionnement (7) de sorte qu'aucune force ne soit plus exercée dans la direction (N) sur le commutateur d'actionnement (7), l'ensemble d'entraînement étant réglé à la première valeur de vitesse prédéterminée pendant une période de temps prédéterminée ;
    - activer le commutateur de verrouillage (8) dans la première période de temps prédéterminée après la désactivation du commutateur d'actionnement (7), de sorte que l'ensemble d'entraînement soit réglé à une deuxième valeur de vitesse prédéterminée ; et
    - activer le commutateur d'actionnement (7) en exerçant une force dans une direction (N) sur le commutateur d'actionnement (7) ou activer le commutateur de verrouillage (8) en exerçant une force dans une direction (N) sur le commutateur de verrouillage (8) pour faire passer l'outillage (1) du mode d'activation au mode de désactivation.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la première valeur de vitesse et la deuxième valeur de vitesse sont identiques.
  3. Procédé selon la revendication 1,
    caractérisé en ce que la première valeur de vitesse et la deuxième valeur de vitesse sont différentes.
  4. Outillage (1) pour la mise en oeuvre du procédé selon au moins l'une des revendications 1 à 3, l'outillage (1) comprenant un dispositif de commande, un ensemble d'entraînement, un outil entraîné par l'ensemble d'entraînement, par exemple un moyen abrasif, un commutateur d'actionnement (7) ainsi qu'un commutateur de verrouillage (8), caractérisé en ce que, lorsque le commutateur d'actionnement (7) est désactivé, plus aucune force n'est exercée dans la direction (N) sur le commutateur d'actionnement (7) et l'ensemble d'entraînement est apte à être réglé à une première valeur de vitesse de rotation prédéfinie pendant une durée prédéterminée.
  5. Outillage (1) selon la revendication 4,
    caractérisé en ce que le commutateur d'actionnement (7) et le commutateur de verrouillage (8) sont formés par un dispositif de commutation commun (11).
  6. Outillage (1) selon la revendication 5,
    caractérisé en ce que le dispositif de commutation commun (11) est formé par un commutateur à bascule.
  7. Outillage (1) selon l'une des revendications 5 ou 6, caractérisé en ce que le dispositif de commutation commun (11) présente une première surface de pression (13) et une deuxième surface de pression (14).
  8. Outillage (1) selon l'une des revendications 5 à 7,
    caractérisé en ce que le dispositif de commutation commun (11) présente une surface plane.
  9. Outillage (1) selon l'une des revendications 5 à 7,
    caractérisé en ce que le dispositif de commutation commun (11) présente des creux pour la première surface de pression (13) et/ou la deuxième surface de pression (14).
  10. Outillage (1) selon l'une des revendications 5 à 9,
    caractérisé en ce que le commutateur d'actionnement (7) et le commutateur de verrouillage (8) coopèrent avec des micro-boutons (21, 22).
  11. Outillage (1) selon l'une des revendications 7 à 10,
    caractérisé en ce que la première surface de pression (13) et la deuxième surface de pression (14) interagissent avec des micro-boutons (21, 22).
  12. Outillage (1) selon l'une des revendications 4 à 11,
    caractérisé en ce que le commutateur d'actionnement (7) et le commutateur de verrouillage (8) sont des composants d'une poignée (15) de l'outillage (1).
  13. Outillage (1) selon l'une des revendications 7 à 11,
    caractérisé en ce que la première surface de pression (13) et la deuxième surface de pression (14) sont des composants d'une poignée (15) de l'outillage (1).
  14. Outillage (1) selon l'une des revendications 4 à 13,
    caractérisé en ce que l'outillage (1) comprend au moins une source de lumière (18) pour indiquer un état de disponibilité de l'outillage (1).
EP19711605.6A 2018-04-09 2019-03-20 Commutateur pour machine-outil et logique de commutation Active EP3774178B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18166226.3A EP3552760A1 (fr) 2018-04-09 2018-04-09 Commutateur pour appareil de meulage et logique de commutation
PCT/EP2019/056925 WO2019197123A1 (fr) 2018-04-09 2019-03-20 Commutateur pour machine-outil et logique de commutation

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Publication Number Publication Date
EP3774178A1 EP3774178A1 (fr) 2021-02-17
EP3774178B1 true EP3774178B1 (fr) 2024-05-01

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EP18166226.3A Withdrawn EP3552760A1 (fr) 2018-04-09 2018-04-09 Commutateur pour appareil de meulage et logique de commutation
EP19711605.6A Active EP3774178B1 (fr) 2018-04-09 2019-03-20 Commutateur pour machine-outil et logique de commutation

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EP (2) EP3552760A1 (fr)
JP (1) JP7069339B2 (fr)
CN (1) CN111902242B (fr)
WO (1) WO2019197123A1 (fr)

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CN216152273U (zh) * 2021-06-01 2022-04-01 创科无线普通合伙 电动工具

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Publication number Publication date
EP3552760A1 (fr) 2019-10-16
CN111902242B (zh) 2022-05-24
WO2019197123A1 (fr) 2019-10-17
US20210146523A1 (en) 2021-05-20
JP7069339B2 (ja) 2022-05-17
US11389941B2 (en) 2022-07-19
JP2021517077A (ja) 2021-07-15
EP3774178A1 (fr) 2021-02-17
CN111902242A (zh) 2020-11-06

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