EP3868516A1 - Machine-outil portative - Google Patents

Machine-outil portative Download PDF

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Publication number
EP3868516A1
EP3868516A1 EP21150089.7A EP21150089A EP3868516A1 EP 3868516 A1 EP3868516 A1 EP 3868516A1 EP 21150089 A EP21150089 A EP 21150089A EP 3868516 A1 EP3868516 A1 EP 3868516A1
Authority
EP
European Patent Office
Prior art keywords
operating
locking
machine tool
locking button
hand machine
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.)
Withdrawn
Application number
EP21150089.7A
Other languages
German (de)
English (en)
Inventor
Yun Guo
Malte Rothkopf
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of EP3868516A1 publication Critical patent/EP3868516A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0069—Locking means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/255—Switches
    • B25D2250/261—Means for locking an operative switch on
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/255—Switches
    • B25D2250/265—Trigger mechanism in handle

Definitions

  • the invention relates to a hand machine tool, comprising a main body to which a work tool can be attached, a drive device connected to the main body for moving the work tool, and a gripping unit also connected to the main body via at least one swivel joint.
  • a switching element for switching the drive device on and off and a locking device for locking the switching element in a switched-on position are arranged on the gripping unit.
  • the invention also relates to a method for operating a hand machine tool with the following steps: setting an operating mode, switching on the drive device, guiding the working tool into a workpiece, and switching off the drive device.
  • the publication describes EP 2233251 B1 an impact tool with a motor and a tool body to which a tool bit that is driven by the motor is coupled.
  • a handle is also arranged on the tool body, which - according to the description and the figures of this publication - is connected to the tool body via a swivel joint.
  • a manually operable motor drive component is arranged on the handle and is biased from an on position to an off position.
  • the impact tool also comprises an operating mode switching component which is arranged on the tool body and can switch between a first operating mode in which the tool bit is continuously driven and a second operating mode in which the tool bit is driven arbitrarily.
  • the impact tool includes a movable member that is moved in the axial direction of the tool bit by the switching operation of the operation mode switching member.
  • the movable component moves in the direction of the handle.
  • the manually operable component is moved from the off position to the on position and locked in the on position.
  • the movable component moves away from the handle. The locking of the is released manually actuatable component, so that the manually operated component can return to the off position and can be operated by a finger of the user.
  • the described locking or locking device facilitates work with the striking tool or a hand machine tool.
  • the locking device enables a user or operator not to have to keep the switching element or the manually operable component constantly pressed while using the hand machine tool.
  • a function is only suitable without restriction for smaller or less powerful hand machine tools. From a certain size or power level, this function is only permitted for safety reasons as long as the hand machine tool remains easily controllable for the operator. This is no longer the case, for example, when a powerful hand machine tool, in particular a large rotary hammer, is set in such a way that the working tool, for example a drill bit, is moved both translationally and rotationally.
  • the working tool for example a drill bit
  • the object of the invention is to create an improved hand machine tool with increased safety or reduced risk of injury during its operation.
  • the object is achieved by the features of claim 1.
  • the invention comprises a hand machine tool with a main body to which a work tool can be attached and a drive device, connected to the main body and operable in at least one first and at least one second operating mode, for moving the work tool.
  • the hand machine tool also comprises an operating element arranged on the main body and transferable between at least two operating positions for setting the operating modes, the first operating mode being set in a first operating position and the second operating mode being set in a second operating position.
  • the hand machine tool comprises a gripping unit connected to the main body via at least one swivel joint, on which a switching element for switching the drive device on and off, as well as a locking device that can be actuated with a locking button for Locking the switching element is arranged in a switched-on position.
  • the switching element can be transferred from a switch-off position to the switch-on position by pressing.
  • the hand machine tool further comprises a blocking element movable by means of the operating element for blocking the locking button as a function of the operating position of the operating element, the locking button being actuatable in the first operating position and being blocked by the blocking element in the second operating position.
  • the blocking element At its end facing the locking button, the blocking element has a first contact surface which is beveled in the direction of the rotary joint, and the locking button has a second contact surface which faces the rotary joint and corresponds to the first contact surface.
  • the technical advantage is achieved that the switching element cannot be locked at least in the second operating mode. This applies to every rotational position of the gripping unit with respect to the rotary joint, as will be described in more detail later.
  • the work tool is preferably essentially only translationally movable in the first operating mode and, on the other hand, translationally and rotationally movable in the second operating mode.
  • the solution is also characterized by a high degree of flexibility, since locking of the switching element can be enabled or disabled depending on the operating mode. Because of the non-permitted locking in the second operating mode, for example in a chisel drilling operation, it is not necessary to dispense with a locking in the first operating mode, for example in a pure chiseling operation.
  • various work tools such as chisels, drills or drill bits can be used or used.
  • the two contact surfaces are preferably each arranged at least in sections tangential to an arc of a circle around the swivel joint, and preferably at least in sections parallel to one another. Due to the mutually correspondingly arranged contact surfaces of the blocking element and the locking button, a particularly stable blocking of the locking button can be ensured, since at least when trying to actuate the locking button, it rests flat against the blocking element. The stable blocking is ensured even if the gripping unit and thus the locking button changes its position in relation to the blocking element.
  • the blocking element is preferably designed as a shift rod.
  • the gripping unit for example a simple handle, is mounted on the main body in a vibration-damped manner by means of its connection via the swivel joint and can be moved into several rotational positions.
  • a distance between the blocking element and the locking button or between their contact surfaces preferably does not change at all or only slightly. This distance is therefore kept constant in the optimal case. This will ensure that the lock button is at the second operating mode is always blocked, regardless of the rotational position of the gripping unit.
  • the term “slightly” in this description and in connection with a distance or a path length means a maximum of three millimeters.
  • the blocking element is also brought closer to the locking button and positioned there in a more targeted manner by means of its beveled or inclined contact surface - when the operating element is transferred into the second operating position. If the blocking element were not designed with such an inclined contact surface, there would be the risk that the blocking element and the locking button jam with one another. This could interfere with the rotary movement of the gripping unit around the swivel joint and thus impair its vibration-damping effect.
  • the - if necessary, lockable - switching element which is also referred to as an accelerator switch, serves to switch the drive device on and off.
  • the drive device for example an electrically operated motor, is switched off when the switching element is switched off and switched on when the switching element is switched on.
  • a restoring force for example a spring force, preferably acts, which is preferably generated by means of a compression spring.
  • the switching element is automatically returned from the switched-on position to the switched-off position when it is released, unless the switching element has been locked in the switched-on position by means of the locking device. According to the invention, this is to be prevented when the drive device is set in the second operating mode or when the operating element is transferred to the second operating position.
  • the operating element is also preferably designed as a rotary switch.
  • the operating element is preferably connected to the blocking element by means of an eccentric.
  • An eccentric is a control disc attached to a shaft, the center of which is outside a shaft axis. The eccentric converts a rotary movement of the operating element into a translational movement of the blocking element, here specifically between a position releasing the locking button and a position blocking the locking button.
  • the eccentric is preferably formed entirely from components of the operating and blocking element.
  • the operating element is also preferably arranged on an upper side of the main body, which enables both convenient operation and a simple and thus inexpensive structure for switching between the operating modes and for moving the blocking element.
  • the contact surfaces are placed against one another at least in sections.
  • the locking button is then firmly fixed in an initial position, so it has no play when the operator attempts to actuate it. It is thus clearly recognizable for the operator that the second operating mode is set and the switching element cannot be locked in this mode.
  • the locking button can have a double function in this embodiment: On the one hand, it serves to actuate the locking device in the first operating mode, on the other hand, it serves as a stop for the blocking element, which is moved when the operating element is transferred from the first to the second operating position.
  • the contact surfaces are arranged at a distance from one another. This has the advantage that when the gripping unit rotates, there is no friction between the contact surfaces as long as the locking button is not actuated. This reduces the wear on the blocking element and locking button and thus increases their service life.
  • the contact surfaces are only spaced from one another as long as the locking button is not actuated.
  • the locking button When the locking button is actuated, its second contact surface is placed against the first contact surface of the blocking element.
  • the locking button therefore has play, which, however, is less than necessary to lock the switching element.
  • the play or a distance between the contact surfaces is preferably only slight. By means of this only slight distance, the installation space of the hand machine tool, in particular in the area of the gripping unit and locking button, is used efficiently.
  • At least one of the contact surfaces advantageously has a friction-reducing coating.
  • Polydionysius or Polybacchus coatings are preferably used here, as these are particularly friction-reducing.
  • the advantages of the preceding first and second embodiment can be combined by means of such a coating. More precisely, the contact surfaces that are placed against one another and also coated to reduce friction fix the locking button firmly and without play, and also reduce the wear on the blocking element and locking button.
  • the locking button has an engagement in which the second contact surface is arranged.
  • the blocking element is arranged so that it engages at least when the operating element is moved into the second operating position. The engagement enables improved guidance of the first contact surface on the second contact surface. In addition, a more stable contact of the contact surfaces against one another is ensured during the rotary movement of the gripping unit and also when the locking button is attempted to be actuated.
  • a support element is provided for supporting the blocking element.
  • the blocking element can be supported against a pressure force acting when the locking button is actuated.
  • the support element is preferably formed in one piece with the blocking element and placed on a fixed or immovable component of the main body.
  • the support element preferably has a U-shape, which is formed by means of wings attached to the outside of the blocking element and bent vertically downwards. With the help of the support element, blocking of the locking button can be secured even better, in particular if the blocking element, due to its structure or arrangement, does not provide sufficient inherent stability to withstand the compressive force exerted by means of the locking button.
  • the support element can also serve to improve guidance of the blocking element when it is moved from or into a position that blocks the locking button.
  • a guide element for guiding the blocking element along is preferably arranged on the main body. This ensures that the blocking element can move or slide in a straight line to and from the locking button.
  • the blocking element is at least partially applied to the guide element, for example with the support element.
  • the guide element can thus also take on a support function in that the blocking element is supported on the guide element against the pressure force acting when the locking button is actuated, preferably with the support element.
  • the locking device preferably has a locking hook which can be hooked into a recess in the switching element by actuating the locking button when the switching element is arranged in the switched-on position.
  • the locking hook is passed through the recess of the switching element held down by the operator.
  • the switching element moves in the direction of the switch-off position, as a result of which the locking hook hooks into the recess.
  • the switching element moves in the direction of the switch-off position preferably only over a small distance, but in any case only as far as an switched-on state of the drive device is ensured.
  • the locking of the switching element is now complete and the locking button can also be released.
  • the locking hook ensures a particularly stable and secure locking of the switching element.
  • the locking hook hooked into the recess is mounted, preferably pressed against a locking spring, preferably a helical compression spring.
  • a locking spring preferably a helical compression spring.
  • the drive device has a third operating mode in which the working tool can only be moved in a rotational manner.
  • the third operating mode can preferably be set by moving the operating element into a third operating position.
  • the third operating mode makes the hand machine tool even more versatile.
  • the object is achieved by a method for operating a hand machine tool according to one of the preceding embodiments. Accordingly, the method comprises the steps: setting an operating mode, switching on the drive device, guiding the work tool into a workpiece, and switching off the drive device.
  • the setting of the operating mode comprises the following steps: transferring the operating element into the second operating position, and blocking the locking device. As already mentioned, this ensures that the locking button is always blocked in the second operating mode, regardless of the rotational position of the gripping unit.
  • the locking device is advantageously blocked by applying the first contact surface of the blocking element to the second contact surface of the locking button.
  • the locking button is fixed firmly and without play in an initial position.
  • the locking button has no play when the operator attempts to operate it, so that the operating mode that is set is clearly recognizable to the operator.
  • the contact surfaces when the work tool is guided into the workpiece, there is preferably a rotary movement of the gripping unit relative to the main body at least from a first rotary position to a second rotary position, the contact surfaces remaining spaced from one another during this rotary movement.
  • the contact surfaces preferably remain equidistant during the rotary movement, that is to say they are at the same distance from one another in every rotary position of the gripping unit.
  • FIG. 10 shows a hand machine tool 100 that includes a main body 102 and a gripping unit 104.
  • the hand machine tool 100 has an upper side 106, a lower side 108, a body side 110 and a gripping side 112, the main body 102 being arranged on the body side 110 and the gripping unit 104 being arranged on the gripping side 112.
  • a working tool (not shown here), for example a chisel or drill bit, can be fastened to the main body 102, which is only partially shown.
  • the main body 102 comprises a drive device 114 for driving the work tool, and an operating element 116 for setting various operating modes of the drive device 114.
  • the drive device 114 is shown here in FIG Fig. 1 shown set in a first operating mode.
  • the main body 102 comprises a blocking element 118 which can be moved by means of the operating element 116, as well as a guide element 120, on the upper side 106 of which the blocking element 118 rests and slides or is guided along during its movement.
  • the blocking element 118 extends from the operating element 116 in the direction of the gripping side 112 into the gripping unit 104.
  • the blocking element 118 has an opening on the operating element 116, which is designed here as a rotary switch, into which the operating element 116 engages and thus forms an eccentric 122 together with the blocking element 118.
  • a rotary movement of the operating element 116 can be converted into a translational movement of the blocking element 118.
  • the blocking element 118 is arranged at a distance from the guide element 120, but is supported on the guide element 120 with the aid of a support element 124.
  • the support element 124 is formed in one piece with the blocking element 118 here.
  • the support element 124 has an inverted U-shape and rests with the two ends of the U-shape on the guide element 120.
  • an end section of the blocking element 118 facing the gripping side 112 is oriented or bent obliquely in the direction of the underside 108.
  • a first contact surface 126 is arranged on the upper side 106 of this end section, which is thus designed to be beveled in the direction of the lower side 108 or in the direction of the rotary joint 128. The function of the contact surface 126 will be explained later.
  • the gripping unit 104 is connected to the main body 102 by means of a swivel joint 128 and can thus be pivoted about the swivel joint 128 into various rotational positions.
  • the gripping unit 104 is here in Fig. 1 shown in an initial rotational position.
  • the gripping unit 104 comprises a switching element 130, a damping element 132 and a locking device 134.
  • the switching element 130 is used to switch the drive device 114 on and off and has an axis of rotation 136 and a recess 138.
  • the damping element 132 engages around the guide element 120 which is arranged on the main body 102 and for which the damping element 132 has a range of motion with a damping effect. Together with the swivel joint 128, the damping element 132 and the guide element 120 form a vibration-damped mounting of the gripping unit 104 on the main body 102.
  • the locking device 134 comprises a locking button 140, a locking hook 142 and a locking spring 144, designed here as a helical compression spring.
  • the locking button 140 has an engagement 146 which is delimited on its upper side 106 by an inclined wall of the locking button 140.
  • a second contact surface 148 is formed on this wall facing the body side 110 and the underside 108. The function of this second contact surface 148 arranged on the locking button 140 will also be explained later.
  • the switching element 130 serves to switch the drive device 114 on and off.
  • the switching element 130 is pivotably connected to the gripping unit 104 by means of the axis of rotation 136.
  • the switching element 130 can be transferred from a switched-off position 150 to a switched-on position 152 by pressing it in the direction of the gripping side 112 and against a restoring force of a compression spring (not shown here).
  • the switching element 130 can be returned from the switched-on position 152 to the switched-off position 150 independently by letting go or with the aid of the restoring force.
  • the switching element 130 can be locked in the switch-on position 152.
  • the switching element 130 therefore does not have to be kept pressed continuously or during the entire period of use.
  • the locking button 140 In order to achieve such a locking, the locking button 140 must be actuated or pressed in the direction of the underside 108 while the switching element 130 is held in the switched-on position 152. Then the switching element 130 and then the locking button 140 must first be released. When the locking button 140 is actuated, the locking hook 142 is passed through the recess 138 of the switching element 130.
  • the switching element 130 When the switching element 130 is released, it moves due to the restoring force in the direction of the switch-off position 150 until the locking hook 142 and the recess 138 are hooked into one another.
  • a restoring force which is generated by means of the locking spring 144, also acts on the locking button 140.
  • the locking hook 142 is thereby additionally stabilized in its locked position.
  • the switching element 130 In order to release the lock again, the switching element 130 simply has to be pressed again in the direction of the gripping side 112. As a result, the locking hook 142 hooked into the recess 138 is released again and, by means of the restoring force generated by the locking spring 144, is moved into the position shown in FIG Fig. 1 shown starting position returned.
  • the above-described locking of the switching element 130 should only be possible when the hand-held machine tool 100 can easily be controlled by the operator during operation. However, if there is a risk that the hand-held machine tool 100 will slip out of the operator's hand during operation, the locking of the switching element 130 is undesirable and must be ruled out.
  • Whether the hand machine tool 100 can be controlled during operation depends on its power level and the operating mode of the drive device 114.
  • the hand machine tool 100 according to the invention can only be easily controlled in a first operating mode due to the high performance of its drive device 114. In the first operating mode, the work tool can essentially only be moved in a translatory manner.
  • the versatile functions of the hand machine tool 100 also include a second operating mode in which the work tool can be moved in a translatory and rotary manner.
  • this second operating mode the locking of the switching element 130 is thus to be excluded or blocked.
  • the blocking element 118 is provided, which correspondingly engages in the locking device 134 in the second operating mode. Specifically, the blocking element 118 is then placed with its first contact surface 126 against the second contact surface 148 of the locking button 140, and the locking button 140 is thus blocked against being actuated or pressed in the direction of the underside 108. It is also conceivable, however, that the contact surfaces 126, 148 are arranged at a slight distance from one another in the second operating mode, whereby the locking button 140 has some play, but cannot lock the switching element 130.
  • the drive device 114 is set in the first operating mode. There is therefore a sufficient distance between the contact surfaces 126, 148 of the blocking element 118 and the locking button 140 to enable the switching element 130 to be locked.
  • the blocking element 118 reaches the position required for the respective operating mode.
  • the setting of various operating modes of the drive device 114 takes place by means of a rotary movement of the operating element 116 designed as a rotary switch.
  • the respective operating mode is set when the operating element 116 is moved into a corresponding operating position.
  • the operating element 116 is transferred to a first operating position 154, and the drive device 114 is thus set in the first operating mode.
  • the operating element 116 is rotated, however, not only is the operating mode of the drive device 114 set, but the blocking element 118 is also moved in a translatory manner along the guide element 120.
  • the position of the blocking element 118 is thus directly dependent on the operating position of the operating element 116 and indirectly also on the set operating mode of the drive device 114.
  • the position of the blocking element 118 required for the second operating mode and thus for blocking the locking button 140 is shown in FIG Figures 2b and 2c shown.
  • FIG. 10 shows a partial section of the hand machine tool 100 from FIG Fig. 1 in a perspective view.
  • the operating element 116, the guide element 120, the support element 124 arranged on the blocking element 118, the damping element 132 and the recess 138 on the switching element 130 can be seen more clearly.
  • FIG. 11 shows a partial view of FIG Fig. 1 which essentially corresponds to the in Figure 2a
  • the illustrated partial section of the hand machine tool 100 corresponds, however, with an operating element 116 transferred to the second operating position 156.
  • the drive device 114 is set in the second operating mode and the blocking element 118 is arranged in a position blocking the locking button 140.
  • the first contact surfaces are corresponding 126 of the blocking element 118 and the second contact surface 148 of the locking button 140 are placed against one another here.
  • the beveled design of the contact surface 126 enables the blocking element 118 to be brought up to or placed against the locking button 140 in a targeted manner, without the blocking element 118 and the locking button jamming with one another or one inside the other.
  • FIG. 14 shows a partial view of the hand machine tool 100 from FIG Fig. 1 which essentially corresponds to the partial view in Figure 2b corresponds, and also represents the control element 116 transferred into the second control position 156.
  • the gripping unit 104 has here in FIG Figure 2c however, a different rotational position. Nevertheless, the contact surfaces 126, 148 abut one another and thus continue to block the locking button 140.
  • the contact of the first contact surface 126 on the second contact surface 148 is therefore independent of the rotational position of the gripping unit 104 each at least partially tangential to an arc of a circle around the swivel joint - not shown here - and thereby arranged to correspond to one another.
  • the two contact surfaces 126, 148 each have a friction-reducing coating (not shown here) in order to achieve sliding on one another with as little wear as possible during the rotary movement of the gripping unit 104.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Portable Power Tools In General (AREA)
EP21150089.7A 2020-02-19 2021-01-04 Machine-outil portative Withdrawn EP3868516A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020001076.8A DE102020001076A1 (de) 2020-02-19 2020-02-19 Hand-Werkzeugmaschine

Publications (1)

Publication Number Publication Date
EP3868516A1 true EP3868516A1 (fr) 2021-08-25

Family

ID=74095749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21150089.7A Withdrawn EP3868516A1 (fr) 2020-02-19 2021-01-04 Machine-outil portative

Country Status (3)

Country Link
EP (1) EP3868516A1 (fr)
CN (1) CN113276070A (fr)
DE (1) DE102020001076A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1864761A1 (fr) * 2006-06-09 2007-12-12 HILTI Aktiengesellschaft Machine-outil manuelle dotée d'un dispositif de réduction des vibrations
DE102007000362A1 (de) * 2007-07-02 2009-01-08 Hilti Aktiengesellschaft Vibrierende Handwerkzeugmaschine mit einem Arretierschalter des Motorschalters
EP2233251B1 (fr) 2009-03-23 2015-08-12 Makita Corporation Outil d'impact
JP2016068190A (ja) * 2014-09-30 2016-05-09 日立工機株式会社 電動工具
DE102018104789A1 (de) * 2017-03-03 2018-09-06 Makita Corporation Werkzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937767B4 (de) 1999-08-10 2004-09-09 Hilti Ag Handgeführter elektrischer Kombihammer
DE10034768A1 (de) 2000-07-18 2002-02-07 Bosch Gmbh Robert Elektrokombihammer
DE102007000470A1 (de) 2007-08-29 2009-03-05 Hilti Aktiengesellschaft Vibrierende Handwerkzeugmaschine mit einem Arretierschalter des Motorschalters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1864761A1 (fr) * 2006-06-09 2007-12-12 HILTI Aktiengesellschaft Machine-outil manuelle dotée d'un dispositif de réduction des vibrations
DE102007000362A1 (de) * 2007-07-02 2009-01-08 Hilti Aktiengesellschaft Vibrierende Handwerkzeugmaschine mit einem Arretierschalter des Motorschalters
EP2233251B1 (fr) 2009-03-23 2015-08-12 Makita Corporation Outil d'impact
JP2016068190A (ja) * 2014-09-30 2016-05-09 日立工機株式会社 電動工具
DE102018104789A1 (de) * 2017-03-03 2018-09-06 Makita Corporation Werkzeug

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Publication number Publication date
DE102020001076A1 (de) 2021-08-19
CN113276070A (zh) 2021-08-20

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