EP4039411B1 - Machine-outil à main et procédé d'activation d'un moteur d'entrainement d'une machine-outil à main - Google Patents

Machine-outil à main et procédé d'activation d'un moteur d'entrainement d'une machine-outil à main Download PDF

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Publication number
EP4039411B1
EP4039411B1 EP22153365.6A EP22153365A EP4039411B1 EP 4039411 B1 EP4039411 B1 EP 4039411B1 EP 22153365 A EP22153365 A EP 22153365A EP 4039411 B1 EP4039411 B1 EP 4039411B1
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EP
European Patent Office
Prior art keywords
tool holder
drive motor
hand
held power
power tool
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
EP22153365.6A
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German (de)
English (en)
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EP4039411A1 (fr
Inventor
Ying xuan TAN
Khiri ABD RAHMAN
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 EP4039411A1 publication Critical patent/EP4039411A1/fr
Application granted granted Critical
Publication of EP4039411B1 publication Critical patent/EP4039411B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • 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
    • 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

Definitions

  • the present invention relates to a hand-held power tool, in particular a screwdriver, with a tool holder and a housing in which a drive motor for driving an output shaft is arranged, wherein in a decoupling position of the tool holder the output shaft is arranged at a distance from the tool holder and in a coupling position of the tool holder an actuation of the tool holder, in particular along a rotation axis of the drive motor, against a workpiece to be machined, the output shaft is operatively connected to the tool holder via a coupling, wherein in the coupling position to activate the drive motor, an actuating rod is acted upon against a motor switch, and wherein the motor switch is acted upon along a Axis of rotation of the drive motor is arranged between the drive motor and the clutch.
  • Such a hand-held power tool designed as a screwdriver is known from the prior art.
  • the screwdriver has a drive motor in the housing for driving an assigned tool holder.
  • the drive motor or a switching element assigned to the drive motor is activated.
  • an actuating rod is arranged in a central interior receptacle of the tool holder.
  • the invention relates to a hand-held power tool, in particular a screwdriver, with a tool holder and a housing in which a drive motor for driving an output shaft is arranged, wherein in a decoupling position of the tool holder the output shaft is arranged at a distance from the tool holder and in a coupling position of the tool holder by a Acting on the tool holder, in particular along a rotation axis of the drive motor, against a workpiece to be machined, the output shaft is operatively connected to the tool holder via a coupling, with an actuating rod being acted upon against a motor switch in the coupling position to activate the drive motor, and the motor switch being acted upon along an axis of rotation of the drive motor is arranged between the drive motor and the clutch.
  • the actuating rod is guided along the housing at least in some areas.
  • the invention thus makes it possible to provide a hand-held power tool in which safe and reliable activation of the drive motor in the coupling position can be made possible by guiding the actuating rod along the housing at least in certain areas.
  • the actuating rod is preferably connected to the tool holder via a slide.
  • the slide is preferably rotationally decoupled from the tool holder via a bearing element.
  • the slide has a receptacle for receiving an end of the actuating rod facing the tool holder.
  • the slide preferably has a positioning web, wherein the positioning web is designed to position the slide in the housing so that it cannot rotate.
  • the coupling has a first coupling part which is connected to the tool holder and a second coupling part which is connected to the output shaft, the first and second coupling parts being in engagement with one another in the coupling position and in the decoupling position along the axis of rotation of the drive motor are spaced apart from each other.
  • the slide is preferably arranged on an outer circumference of the first coupling part.
  • a suitable arrangement of the slide can thus be made possible in a simple manner.
  • an end of the actuating rod facing the motor switch is spaced from the motor switch in the decoupling position and in the coupling position the motor switch is activated by applying force.
  • the clutch is preferably designed as a separating clutch, in particular as a claw clutch.
  • Fig. 1 shows an example of a hand-held power tool 100 designed as a screwdriver, in particular as a drywall screwdriver, with a housing 110.
  • the housing 110 is preferably pistol-shaped, with a handle 105 which connects an illustrative upper housing section 106 with an illustrative lower housing section 108.
  • the upper and lower housing sections 106, 108 are illustratively aligned at least approximately parallel to one another and perpendicular to the handle 105.
  • a drive unit 125 is preferably arranged in the upper housing section 106 and a battery pack 190 is preferably arranged on the lower housing section 108.
  • the hand-held power tool 100 can also be designed without a lower housing section 108, whereby the battery pack 190 can be arranged at least in sections in the handle 105.
  • the battery pack 190 instead of a mains-independent power supply via the battery pack 190, for example, a power cable for mains-dependent power supply can be provided.
  • a control element 107 is assigned to the handle 105 for activating the drive unit 125.
  • a locking element 186 is optionally provided on the handle 105, which is designed to lock or block the control element 107 in an assigned operating position after operation.
  • a direction of rotation switch 188 is illustratively provided, which is designed to activate a direction of rotation of the drive unit 125 or a reversing operation of the drive unit 125.
  • the drive unit 125 preferably has at least one drive motor 120.
  • a rotation axis 109 of the drive motor 120 forms a longitudinal direction 103 of the housing 110, in particular of the upper housing section 106.
  • At least one clutch 132 is assigned to the drive unit 125.
  • the drive unit 125 can be a gear unit 130 be assigned.
  • the optional gear unit 130 includes, for example, a gear 134, in particular a planetary gear.
  • the gear unit 130 and the drive motor 120 are preferably arranged along the longitudinal direction 103 or in the axial direction.
  • the term “axial” or “in the axial direction” is to be understood as meaning a direction along the longitudinal direction 103 of the housing 110, in particular a direction coaxial or parallel to the axis of rotation 109 of the drive motor 120.
  • the drive motor 120 is preferably designed to drive a tool holder 140.
  • the tool holder 140 is preferably assigned an internal holder for holding an insert tool, for example a screwdriver bit or a drill.
  • the drive motor 120 preferably drives an output shaft (295 in Fig. 2 ), which in turn has a drive shaft (298 in.) connected to the tool holder 140 Fig. 2 ) drives.
  • An optional torque setting sleeve 145 is preferably arranged along the axis of rotation 109 between the tool holder 140 and the drive motor 120 or the optional gear unit 130.
  • the torque adjustment sleeve 145 is preferably designed to adjust a torque.
  • the clutch 132 is arranged along the axis of rotation 109, illustratively between the drive motor 120, in particular the output shaft (295 in Fig. 2 ), and the tool holder 140.
  • the clutch 132 is designed as a separating clutch, in particular as a claw clutch.
  • a decoupling position (201 in Fig. 2 ) of the tool holder 140 is the output shaft (295 in Fig. 2 ) arranged at a distance from the tool holder 140 and in a coupling position (301 in Fig. 4 ) of the tool holder 140 is the tool holder 140 with the output shaft (295 in Fig. 2 ) operatively connected.
  • the tool holder 140 By pressing the tool holder 140, in particular along the axis of rotation 109, against a workpiece to be machined, the tool holder 140 is in the coupling position (301 in Fig. 4 ) arranged.
  • the drive motor 120 is activated by an activation unit 185.
  • An auto-start unit 150 of the hand-held power tool 100 is preferably assigned to the activation unit 185.
  • an operating unit 180 is preferably provided.
  • the operating unit 180 is arranged on a top side 192 of the second housing section 108.
  • the operating unit 180 is arranged facing the first housing section 106.
  • the operating unit 180 can also be arranged at any other location on the hand-held power tool 100.
  • the operating unit 180 illustratively has an operating element 182 for activating the auto-start mode.
  • the control element 182 is preferably designed as a button.
  • the operating unit 180 is assigned a display 184 at least for visualizing activation of the auto-start mode.
  • the display 184 can, for example, have an LED that lights up or flashes when the auto-start mode is activated.
  • the auto-start mode can also be activated via an external device, such as a smartphone.
  • the hand-held power tool 100 can preferably be operated in auto-start mode or in a manual mode.
  • manual mode a user of the hand-held power tool 100 operates the control element 107, whereby the drive motor 120 is activated.
  • the tool holder 140 By pressing the tool holder 140 along the axis of rotation 109 against a workpiece to be machined, the tool holder 140 is in the coupling position (301 in Fig. 4 ) arranged and the tool holder 140 rotates.
  • the control element 107 is preferably actuated and the auto-start mode is then activated by actuating the control element 182 of the control unit 180.
  • the drive motor 120 is not initially activated.
  • the tool holder 140 is in the coupling position (301 in Fig. 4 ) is arranged, creating an actuating rod (270 in Fig. 2 ) a Motor switch (280 in Fig. 2 ) activated.
  • the drive motor 120 is activated and the tool holder 140 rotates.
  • Fig. 2 shows the auto-start unit 150 of the hand-held power tool 100 arranged in the housing 110 Fig. 1 in a decoupling position 201 of the tool holder 140.
  • the auto-start unit 150 is arranged in a transmission housing 206.
  • the gearbox 206 has an internal receptacle 207.
  • at least the clutch 132 with the auto-start unit 150 is arranged in the interior receptacle 207.
  • the drive motor 120 preferably drives Fig. 1 an output shaft 295.
  • the clutch 132 has a first clutch part 240, which is connected to the tool holder 140, and a second clutch part 250, which is connected to the output shaft 295.
  • the first coupling part 240 is connected in a rotationally fixed manner to the tool holder 140, in particular with a drive shaft 298 assigned to the tool holder 140
  • the second coupling part 250 is connected in a rotationally fixed manner to the output shaft 295.
  • the first and second coupling parts 240, 250 are preferably each designed in the manner of a crown disk.
  • the first coupling part 240 has groove-like receptacles 254 and web-shaped receiving elements 252 facing the second coupling part 250.
  • the second coupling part 250 has groove-like receptacles 242 and web-shaped receiving elements 244 facing the first coupling part 240.
  • the receptacles 242, 254 and the receiving elements 244, 252 are arranged on facing side surfaces of the first and second coupling parts 240, 250.
  • the receptacles 242, 254 and the receiving elements 244, 252 are preferably evenly distributed in the circumferential direction on the first and second coupling parts 240, 250.
  • the first and second coupling parts 240, 250 are preferably in the coupling position (301 in Fig. 4 ) in engagement with each other.
  • the receiving elements 252 of the second coupling part 250 are in the receptacles 242 of the first coupling part 240 arranged and the receiving elements 244 of the first coupling part 240 are arranged in the receptacles 254 of the second coupling part 250. This creates a rotational drive.
  • the two coupling parts 240, 250 are spaced apart from one another along the axis of rotation 109.
  • a spring element 260 is preferably arranged between the first and second coupling parts 240, 250.
  • the spring element 260 is designed to pressurize the two coupling parts 240, 250 into the decoupling position 201.
  • the output shaft 295 is arranged at a distance from the tool holder 140. There is no rotational driving via the receiving elements 244 or 252 to the tool holder 140.
  • the auto-start unit 150 is assigned an actuating rod 270.
  • the actuating rod 270 can preferably be acted upon by a motor switch 280.
  • the motor switch 280 is arranged at an end of the auto-start unit 150 that faces the drive motor 120 or away from the tool holder 140.
  • the motor switch 280 is preferably arranged along the axis of rotation 109 between the drive motor 120 and the clutch 132.
  • the motor switch 280 is arranged between a fan wheel 290, which optionally faces the drive motor 120, and the auto-start unit 150.
  • the motor switch 280 has an actuation section 282 for actuation.
  • the actuating rod 270 is preferably rod-shaped and has an end 272 facing the tool holder 140 and an end 274 facing the motor switch 280.
  • the actuating rod 270 is guided along the housing 110 at least in some areas, in particular in the internal receptacle 207 of the gear housing 206.
  • the actuating rod 270 is arranged in a free space 299, which is formed perpendicular to the axis of rotation 109, or in the radial direction 204 between the auto-start unit 150 or the clutch 130 and the transmission housing 206, that is, the actuating rod 270 arranged in the radial direction outside the tool holder 140.
  • the term “regionally” is understood to mean an arrangement or guidance of the actuating rod 270 on the housing 110 at least in sections.
  • the term “radial” or “in the radial direction” is to be understood as meaning the direction 204 perpendicular to the longitudinal direction 103 of the housing 110, in particular perpendicular to the axis of rotation 109 of the drive motor 120.
  • the actuating rod 270 is preferably arranged on the housing 110 or the inner receptacle 207 in the area of its ends 272, 274, preferably guided on it.
  • the end 274 of the actuating rod 270 facing the motor switch 280 is arranged along the axis of rotation 109 at a distance 205 from the motor switch 280.
  • the auto-start unit 150 is preferably assigned a slider 230.
  • the actuating rod 270 is preferably connected to the tool holder 140 via the slide 230.
  • the slide 230 is preferably designed in the manner of a ring gear.
  • the slide 230 is preferably arranged on an outer circumference 249 of the first coupling part 240.
  • the first coupling part 240 is, as described above, arranged on the tool holder 140 or the drive shaft 298 assigned to the tool holder 140.
  • the slide 230 is preferably rotationally decoupled from the tool holder 140 via a bearing element 220.
  • the bearing element 220 is arranged in the radial direction 204 between the slide 230 and the first coupling part 240.
  • An outer circumference 225 of the bearing element 220 is arranged on an inner circumference 232 of the slide 230. This preferably creates a non-positive connection between the bearing element 220 and the slide 230.
  • the slide 230 preferably has a receptacle 234 for receiving the end 272 of the actuating rod 270 facing the tool receptacle 140.
  • the end 272 of the actuating rod 270 is bent in the radial direction 204 towards the slide 230, preferably by 90°.
  • the receptacle 234 is preferably arranged on the outer circumference of the slide 230.
  • the receptacle 234 is designed as a groove in which the end 272 can be arranged.
  • Preferably between the end 272 of the actuating rod 270 and the receptacle 234 forms a positive, non-positive and/or cohesive connection.
  • the slide 230 has a collar 236 formed in the radial direction 204.
  • the collar 236 is preferably designed as a support element for the bearing element 220, so that the bearing element 220 and/or the slider 230 are secured towards the output shaft 295 along the longitudinal direction 103 on the first coupling part 240.
  • the slider 230 illustratively has a positioning bar 239.
  • the positioning web 239 is preferably designed as an extension in the radial direction 204.
  • the positioning web 239 is preferably designed to position the slide 230 in the housing 110 so that it cannot rotate.
  • the positioning web 239 is preferably formed in the area of the receptacle 234. This enables a safe and reliable arrangement of the end 272 of the actuating rod 270 in the receptacle 234.
  • the end 272 is preferably arranged in the receptacle 234 and is held in position between the slide 230 and the inner receptacle 207.
  • the first coupling part 240 has analogous groove-like receiving areas 248 and receiving sections 246.
  • the receiving sections 246 engage in groove-like receiving areas 214 of a clutch disk 210 and the receiving areas 248 engage in receiving sections 212 of the clutch disk 210.
  • the clutch disk 210 is designed to stop rotation of the tool holder 140 in the decoupling position 201 comparatively quickly.
  • the clutch disk 210 is preferably arranged fixed to the housing.
  • the tool holder 140 By pressing the tool holder 140 against a workpiece to be machined, the tool holder 140 is moved in the direction of an arrow 202 towards the drive motor 120.
  • the two coupling parts 240, 250 are operatively connected and the actuating rod 270 acts on the motor switch 280, whereby the drive motor 120 is activated.
  • the actuating rod 270 moves simultaneously via the movement of the slide 230 or the first coupling part 240 in the axial direction.
  • the first coupling part 240, the actuating rod 270, the engine switch 280, the slider 230 and the bearing element 220 are preferably assigned to the auto-start unit 150.
  • Fig. 3 shows the auto-start unit 150 arranged in the transmission housing 206 in the decoupling position 201 of Fig. 2 .
  • Fig. 3 shows the arrangement of the slide 230 with the bearing element 220 on the first coupling part 240.
  • Fig. 3 the arrangement of the actuating rod 270 in the free space 299.
  • the arrangement of the end 272 of the actuating rod 270 in the receptacle 234 of the slide 230 is illustrated.
  • the positioning web 239 of the slide 230 is illustrated, which is preferably arranged in the area of the receptacle 234.
  • Fig. 4 shows the auto-start unit 150 arranged in the transmission housing 206 Fig. 2 in a coupling position 301 in which the drive motor 120 is activated.
  • the two coupling parts 240, 250 of the coupling 132 are operatively connected.
  • the receiving elements 252 of the second coupling part 250 are arranged in the axial direction in the receptacles 242 of the first coupling part 240 and the receiving elements 244 of the first coupling part 240 are arranged in the receptacles 254 of the second coupling part 250.
  • the actuating rod 270 acts on the motor switch 280, ie the distance 205 from Fig. 2 and Fig. 3 is not available anymore.
  • the first clutch part 240 is arranged at a distance from the clutch disk 210.
  • Fig. 5 shows the tool holder 140 with the first coupling part 240, the slide 230 and the actuating rod 270 from Fig. 2 to Fig. 4 .
  • Fig. 5 the arrangement of the first coupling part 240 on the tool holder 140 or the drive shaft 298.
  • the slide 230 and the bearing element 220 are arranged on the outer circumference 249 of the first coupling part 240.
  • the bearing element 220 is arranged on a first section 401 and the slider 230 on a second section 402 of the outer circumference 249 of the first coupling part 240.
  • the first section 401 preferably has a larger diameter than the second section 402.
  • the first section 401 is of the tool holder 140 arranged facing away and the second section 402 is arranged facing the tool holder 140.
  • the two sections 401, 402 are preferably designed to be circumferential.
  • the spring element 260 is preferably arranged at a central area 405, or at an area of the first coupling part 240 facing away from the tool holder 140.
  • the spring element 260 is illustratively positioned on the outer circumference of the drive shaft 298.
  • the spring element 260 is preferably designed as a spiral spring.
  • the positioning web 239 of the slide 230 is preferably designed as a radial extension, as described above.
  • the positioning web 239 is preferably formed in one piece with the slide 230, but can also be attached to the slide 230 via any connection, for example an adhesive connection.
  • the actuating rod 270 can also be formed in one piece with the slide 230.
  • the motor switch 280 is preferably designed as a switching element, in particular as a pressure switch or button.
  • the motor switch 280 and the actuating rod 270 can be designed, for example, as contact elements that can be contacted with one another, which, when in contact with one another, form an electrical connection to the drive motor 120 or enable a power supply to the drive motor 120.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Manipulator (AREA)

Claims (10)

  1. Machine-outil à main (100), notamment visseuse, avec un logement d'outil (140) et un boîtier (110), dans lequel est agencé un moteur d'entraînement (120) pour l'entraînement d'un arbre de sortie (295) ; dans une position de désaccouplement (201) du logement d'outil (140), l'arbre de sortie (295) étant agencé à distance du logement d'outil (140) et, dans une position d'accouplement (301) du logement d'outil (140), par une application du logement d'outil (140), notamment le long d'un axe de rotation (109) du moteur d'entraînement (120), contre une pièce à usiner, l'arbre de sortie (295) étant en liaison active avec le logement d'outil (140) par l'intermédiaire d'un accouplement (132) ; dans la position d'accouplement (301), une tige d'actionnement (270) étant appliquée contre un interrupteur de moteur (280) pour activer le moteur d'entraînement (120), et la tige d'actionnement (270) étant guidée au moins par zones le long du boîtier (110 ; 206), caractérisée en ce que l'interrupteur de moteur (280) est agencé le long d'un axe de rotation (109) du moteur d'entraînement (120) entre le moteur d'entraînement (120) et l'accouplement (132) .
  2. Machine-outil à main selon la revendication 1, caractérisée en ce que la tige d'actionnement (270) est reliée au logement d'outil (140) par l'intermédiaire d'un coulisseau (230).
  3. Machine-outil à main selon la revendication 2, caractérisée en ce que le coulisseau (230) est découplé en rotation du logement d'outil (140) par l'intermédiaire d'un élément de palier (220).
  4. Machine-outil à main selon la revendication 2 ou 3, caractérisée en ce que le coulisseau (230) présente un logement (234) pour loger une extrémité (272) de la tige d'actionnement (270) qui est tournée vers le logement d'outil (140).
  5. Machine-outil à main selon l'une quelconque des revendications 2 à 4, caractérisé en ce que le coulisseau (230) présente une entretoise de positionnement (239), l'entretoise de positionnement (239) étant configurée pour positionner le coulisseau (230) dans le boîtier (110) sans possibilité de rotation.
  6. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que l'accouplement (132) présente une première partie d'accouplement (240), qui est reliée au logement d'outil (140), ainsi qu'une deuxième partie d'accouplement (250), qui est reliée à l'arbre de sortie (295), les première et deuxième parties d'accouplement (240, 250) étant en prise l'une avec l'autre dans la position d'accouplement (301) et étant espacées l'une de l'autre le long de l'axe de rotation (109) du moteur d'entraînement (120) dans la position de désaccouplement (201).
  7. Machine-outil à main selon la revendication 6, avec l'une quelconque des revendications 2 à 5, caractérisée en ce que le coulisseau (230) est agencé sur une périphérie extérieure (249) de la première partie d'accouplement (240).
  8. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une extrémité (274) de la tige d'actionnement (270) tournée vers l'interrupteur de moteur (280) est espacée de l'interrupteur de moteur (280) dans la position de désaccouplement (201) et active l'interrupteur de moteur (280) par application d'une force dans la position d'accouplement (301).
  9. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que l'accouplement (132) est un embrayage séparateur, notamment un embrayage à griffes.
  10. Procédé d'activation d'un moteur d'entraînement (120) d'une machine-outil à main (100) selon l'une quelconque des revendications 1 à 9, qui présente les étapes suivantes :
    - l'activation d'un élément de commande (107) de la machine-outil à main (100),
    - l'activation d'un mode de démarrage automatique par l'intermédiaire d'un élément de commande (182) d'une unité de démarrage automatique (150) de la machine-outil à main (100), et
    - l'application du logement d'outil (140) de la machine-outil à main (100) contre une pièce à usiner, une partie d'accouplement (250) de l'arbre de sortie (295) étant en liaison active avec une partie d'accouplement (240) du logement d'outil (140) par un mouvement le long d'un axe de rotation (109) du moteur d'entraînement (120), la tige d'actionnement (270) étant ainsi déplacée le long de l'axe de rotation (109) du moteur d'entraînement (120) et activant l'interrupteur de moteur (280).
EP22153365.6A 2021-02-09 2022-01-26 Machine-outil à main et procédé d'activation d'un moteur d'entrainement d'une machine-outil à main Active EP4039411B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021201181.0A DE102021201181A1 (de) 2021-02-09 2021-02-09 Handwerkzeugmaschine und Verfahren zum Aktivieren eines Antriebsmotors einer Handwerkzeugmaschine

Publications (2)

Publication Number Publication Date
EP4039411A1 EP4039411A1 (fr) 2022-08-10
EP4039411B1 true EP4039411B1 (fr) 2023-10-25

Family

ID=80035265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22153365.6A Active EP4039411B1 (fr) 2021-02-09 2022-01-26 Machine-outil à main et procédé d'activation d'un moteur d'entrainement d'une machine-outil à main

Country Status (4)

Country Link
US (1) US20220250213A1 (fr)
EP (1) EP4039411B1 (fr)
CN (1) CN114905466A (fr)
DE (1) DE102021201181A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442738A (en) * 1982-03-29 1984-04-17 Standard Pneumatic Motor Co., A Division Of Hamilton Company Automatic push-to-start screwdriver
JPS61121877A (ja) * 1984-11-16 1986-06-09 松下電器産業株式会社 電動ドライバ−
US5557990A (en) * 1995-07-27 1996-09-24 Shin; Fu-Zong Actuating device for use in powered screwdriver
JP4721535B2 (ja) * 2001-02-28 2011-07-13 勝行 戸津 電動回転工具
JP4823499B2 (ja) * 2004-07-23 2011-11-24 勝行 戸津 ブラシレスモータ駆動回転工具の制御方法
CN102019608B (zh) * 2009-09-10 2013-07-03 苏州宝时得电动工具有限公司 动力工具
DE102012218272A1 (de) 2012-10-08 2014-04-10 Robert Bosch Gmbh Handwerkzeugmaschine
DE202019104987U1 (de) * 2019-09-10 2019-09-17 Robert Bosch Gmbh Handwerkzeugmaschine

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DE102021201181A1 (de) 2022-08-11
US20220250213A1 (en) 2022-08-11
EP4039411A1 (fr) 2022-08-10
CN114905466A (zh) 2022-08-16

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