EP3852978A1 - Machine-outil portative et procédé pour faire fonctionner une machine-outil portative - Google Patents

Machine-outil portative et procédé pour faire fonctionner une machine-outil portative

Info

Publication number
EP3852978A1
EP3852978A1 EP19762833.2A EP19762833A EP3852978A1 EP 3852978 A1 EP3852978 A1 EP 3852978A1 EP 19762833 A EP19762833 A EP 19762833A EP 3852978 A1 EP3852978 A1 EP 3852978A1
Authority
EP
European Patent Office
Prior art keywords
housing element
tool
engine speed
magnetic field
motor
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.)
Pending
Application number
EP19762833.2A
Other languages
German (de)
English (en)
Inventor
Steffen Geiger
Christian Augustin
Darko Saric
Markus Rank
Stefan Schmid
Christian Iglhaut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3852978A1 publication Critical patent/EP3852978A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • 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
    • B25F5/006—Vibration damping 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
    • B25D2250/091—Electrically-powered tool components
    • B25D2250/095—Electric motors
    • 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
    • B25D2250/121—Housing details
    • 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
    • B25D2250/195—Regulation means
    • B25D2250/201—Regulation means for speed, e.g. drilling or percussion speed
    • 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
    • B25D2250/221—Sensors

Definitions

  • the present invention relates to a handheld power tool and a method for operating a handheld power tool.
  • attaching and gripping a tool is the
  • Hand tool such as a drill, often problematic on a workpiece. This is particularly the case with handheld power tools
  • EP 1 466 702 A1 discloses an electric hand machine tool with a force sensor for measuring a contact pressure of the electric hand machine tool against a workpiece. From EP 1 958 735 A1 a hand tool is known with a base housing and an outer housing, which is held on the base housing by means of decoupling means and with a
  • Main handle and side handle connection means is firmly connected. From EP 1 882 559 A1 hand tool is known with a housing and a handle which is held on the housing via a decoupling arrangement.
  • the object of the present invention is to provide an improved hand tool and to improve a method for operating a hand tool.
  • a handheld power tool is proposed.
  • Hand machine tool comprises a housing which has a first housing element and a second housing element.
  • Housing elements are decoupled from one another and movable relative to one another.
  • Handheld power tool further comprises a tool holder and a motor for rotating and / or driving the tool holder.
  • Hand machine tool also includes a magnetic field sensor for detecting a distance between the first housing element and the second housing element. Further the hand power tool comprises a control device for setting a
  • the hand tool is, for example, a hammer drill, a chisel hammer, a combination hammer, a core drill or a screwdriver.
  • Hand tool is used to insert a rotatable tool, e.g. B. a drill or a chisel tool.
  • the motor of the hand machine tool is
  • the motor of the hand machine tool is in particular a motor with an adjustable speed.
  • the motor of the hand power tool is used, in particular, to set the tool into a rotary movement and / or a striking movement by rotating and / or driving the tool holder.
  • the motor of the hand machine tool is used by rotating
  • the motor of the hand-held power tool is also used to drive the tool in one direction by driving the tool holder in one direction
  • the direction of impact is in particular parallel to the working axis.
  • An object can be chiseled by the impact movement of the tool.
  • Tool of the hand machine tool can have a retroactive force on a handle of the hand machine tool.
  • a rotating torque can act on the handle due to the rotating machining of a workpiece.
  • the handle can be set to vibrate by the rotating and / or striking machining of a workpiece.
  • the housing of the handheld power tool has two mechanically decoupled from one another
  • Housing elements namely the first housing element and the second
  • the tool holder is arranged on the first housing element and the second housing element has the handle of the
  • a housing element of the second housing element does not, or only to a limited extent, transmit a force acting back from the tool and the tool holder to the handle.
  • the first housing element and the second housing element are movably attached to one another with the aid of a decoupling means and mechanically decoupled from one another.
  • the decoupling means keeps the first housing element and the second housing element at a distance from one another.
  • the decoupling means can in particular be compressed, so that the distance between the first housing element and the second housing element can be changed by compressing the decoupling means.
  • Housing element by the decoupling means a variable distance.
  • Decoupling means has, for example, one or more spring elements, bearings and / or spring-loaded bearings.
  • a user who holds the handheld machine tool by the handle exerts a force on the handle in the direction of the workpiece.
  • the distance between the first housing element, on which the tool holder with the tool is arranged, and the second housing element, which includes the handle, is reduced by a contact pressure of the user.
  • the decoupling means is compressed by the pressing force. The harder the user presses against the handle, the smaller the distance between the first housing element and the second housing element.
  • the handheld power tool has the magnetic field sensor for detecting the variable distance between the first housing element and the second housing element.
  • the magnetic field sensor is, for example, a Hall sensor, a magneto-resistive sensor or a field plate sensor.
  • the magnetic field sensor is preferably a one-dimensional one
  • Magnetic field sensor such as a linear Hall sensor, or a multi-dimensional magnetic field sensor, such as a 3D magnetic field sensor and / or 3D Hall sensor.
  • a multi-dimensional magnetic field sensor such as a 3D magnetic field sensor and / or 3D Hall sensor.
  • other magnetic field sensors can also be used in the hand tool.
  • the magnetic field sensor is arranged on the first housing element and measures the distance from the second housing element or it is arranged on the second housing element measures the distance from the first housing element.
  • the contact pressure can be determined, which the user applies to the hand tool via the handle.
  • the control device of the hand-held power tool for setting the motor speed of the motor as a function of the detected distance serves in particular to increase the motor speed when the detected distance decreases.
  • the control device of the hand-held power tool for setting the motor speed of the motor as a function of the detected distance serves in particular to increase the motor speed when the detected distance decreases.
  • Control device set up to increase the engine speed like a ramp when the detected distance decreases.
  • the control device is set up to increase the engine speed in inverse proportion to the detected distance.
  • the control device is set up to increase the engine speed linearly depending on the reciprocal of the detected distance.
  • the rotary operation of the tool holder can also be set as a function of the detected distance.
  • a rotation rate and / or a torque of the tool holder can be set depending on the detected distance and / or a rotational movement of the tool holder can be adjusted depending on the detected
  • the engine speed as a function of the detected distance
  • the percussion operation of the tool holder can also be set as a function of the detected distance. For example, one
  • the setting of the engine speed as a function of the detected distance can include starting the striking drive of the tool holder as a function of the detected distance.
  • Housing element is a measure of the contact pressure of the user, the control device can the hand machine tool depending on the applied by the user
  • the control device is set up to increase the engine speed when the determined contact force increases.
  • the user can intuitively control the power output of the handheld power tool via the contact pressure.
  • the hand-held power tool can, for example, be attached to the workpiece more easily the machining process of the workpiece can be started more easily and better. This is also possible in particular for hand-held machine tools with a low weight.
  • the tool can be attached to a workpiece at a low engine speed and then the engine speed can be increased in a ramp-like manner up to a maximum speed.
  • This allows, for example, a hammer drill without
  • Impact movement are applied to the workpiece and the impact movement can only be triggered by pressing on the workpiece.
  • control device is set up to determine a contact pressure from the detected distance and to set the engine speed of the engine as a function of the determined contact force.
  • control device calculates the contact pressure from the detected distance using an algorithm of the control device.
  • the control device is in particular set up to increase the engine speed as a function of the determined contact pressure.
  • the control device is set up to ramp up the engine speed when the determined one
  • control device is set up to
  • control device is set up to linearly increase the engine speed as a function of the determined contact pressure.
  • the engine speed as a function of the determined contact pressure
  • the rate of rotation and / or the torque of the tool holder can be set as a function of the determined contact pressure and / or the rotary movement of the tool holder can be started as a function of the determined contact force.
  • the engine speed as a function of the determined pressing force
  • the impact operation of the tool holder can also be set as a function of the determined pressing force. For example, an impact frequency, impact amplitude and / or impact force of the tool holder in
  • Dependency of the determined contact pressure can be set and / or an impact movement of the tool holder can be started depending on the determined contact force.
  • the setting of the engine speed as a function of the determined contact pressure that is to say also as a function of the detected distance, can start the have striking drive of the tool holder depending on the determined contact pressure.
  • the idle mode is an operation in which the engine rotates but no workpiece is machined. Furthermore, each time the hand-held power tool is reattached, the hand-held power tool starts gently and intuitively controlled by the contact pressure.
  • control device is set up to increase the engine speed of the engine as a function of the determined contact force if the determined contact force is greater than a first specific threshold value.
  • the first specific threshold value corresponds to a specific contact pressure.
  • the first specific threshold value corresponds to a specific contact pressure, which indicates that the tool is attached to a workpiece.
  • the control device compares in particular the determined contact pressure with the first determined threshold value. If the control device determines that the determined contact pressure is greater than the first determined threshold value, the control device continuously increases the engine speed, for example as the contact pressure increases, and is directly proportional to the determined
  • control device is set up to increase the motor speed of the motor as a function of the determined contact pressure, if the determined contact force is greater than the first determined threshold value, it can be determined that the tool is securely attached to a workpiece, as a result of the the first certain threshold value corresponding minimum pressure is exerted on the workpiece. Furthermore, it can be achieved that the handheld power tool reacts dynamically to the contact pressure of the user. In particular, this can be applied to the workpiece
  • the tool remains in safe contact with the workpiece during further processing.
  • the tool can be prevented from slipping off the workpiece by the drilling and / or impact operation.
  • control device is set up to set the engine speed of the engine to a maximum engine speed if the determined contact pressure is greater than a second specific threshold value.
  • the second determined threshold is greater than the first determined threshold.
  • the second specific threshold value corresponds to a specific contact pressure, which in particular indicates that the tool is securely engaged on the workpiece.
  • Control device in particular compares the determined contact pressure with the second determined threshold value. If the control device determines that the determined contact pressure is greater than the second determined threshold value, it sets the engine speed to the maximum engine speed.
  • the maximum motor speed is, for example, a maximum motor speed for which the motor of the hand machine tool is designed.
  • control device is set up to set the engine speed of the engine to the maximum engine speed when the determined contact force is greater than the second determined threshold value means that the maximum output of the engine
  • the maximum output can be available 250 milliseconds after the first attachment to the workpiece.
  • a magnet is arranged on the first housing element and the magnetic field sensor is arranged on the second housing element. Furthermore, the magnetic field sensor is set up as a distance between the first housing element and the second housing element
  • the magnet is, for example, a permanent magnet or comprises a coil.
  • the magnetic field sensor arranged on the second housing element, which comprises the handle measures a magnetic field of the magnet arranged on the first housing element.
  • the magnetic field detected at the location of the magnetic field sensor is dependent on the distance from the magnet, so that the magnetic field sensor can detect the distance between the magnetic field sensor and the magnet.
  • the magnetic field sensor is arranged on the second housing element, which is preferably decoupled from the vibration movements of the first housing element, the magnetic field sensor can be protected against vibrations.
  • Magnetic field sensor detects the distance between the magnetic field sensor and the magnet, the distance between the first housing element and the second housing element can be detected precisely. This enables the contact pressure to be determined very precisely.
  • the magnetic field sensor is a 3D magnetic field sensor.
  • the 3D magnetic field sensor is a magnetic field sensor that creates a magnetic field in three
  • a 3D magnetic field sensor measures a three-dimensional vector of the magnetic flux density of the magnetic field.
  • the 3D magnetic field sensor is, for example, a 3D Hall sensor in which one or more Hall elements per spatial direction are arranged on a chip.
  • the magnetic field sensor is a 3D magnetic field sensor
  • the magnetic field of the magnet arranged on the first housing element can be determined very precisely.
  • the distance between the first housing element and the second housing element can be determined very precisely. This enables a finely tuned reaction of the power output of the motor to the distance and thus the contact pressure.
  • the tool holder is on the first
  • Housing element arranged and the second housing element has a handle of the handheld power tool.
  • the tool holder can be decoupled from the handle by means of the decoupling of the first housing element from the second housing element. Vibrations of the handle can be weakened or avoided by retroactive forces of the tool and the tool holder.
  • the motor, the striking mechanism and the drive shaft are also arranged in the first housing element.
  • the first housing element is arranged at least partially within the second housing element.
  • Housing element has the handle of the hand machine tool. This means that the handle can be decoupled from the tool holder to reduce vibrations using a sub-chassis solution.
  • the first housing element can also be arranged next to the second, instead of being arranged at least partially within the second housing element
  • Housing element may be arranged.
  • control device is set up
  • Engine speed of the engine depending on the detected distance by controlling the engine speed depending on the detected distance or by regulating the
  • the handheld power tool has a motor for rotating and / or driving a tool holder and a magnetic field sensor.
  • the handheld power tool also has a housing with a first housing element and a second housing element. The first
  • Housing element and the second housing element are decoupled from one another and movable relative to one another.
  • the method has a step of detecting a distance between the first housing element and the second housing element by means of the magnetic field sensor.
  • the method also has a step of setting an engine speed of the engine as a function of the detected distance.
  • the method has a step of determining a contact pressure from the detected distance.
  • the determination of the pressing force from the detected distance is carried out, for example, by the control device described in connection with the handheld power tool.
  • the step of determining the contact pressure from the detected distance takes place in particular after the step of detecting the distance between the first housing element and the second housing element and before the step of setting the engine speed Motor depending on the detected distance.
  • the method steps mentioned are carried out repeatedly in the sequence mentioned, in particular during operation of the handheld power tool.
  • the step of setting the motor speed of the motor as a function of the detected distance comprises, in particular, setting the motor speed of the motor as a function of the determined contact pressure.
  • the setting of the engine speed of the engine as a function of the detected distance comprises controlling the
  • the setting of the motor speed of the motor has an increase in the motor speed as a function of the determined contact force if the determined contact force is greater than a first determined one
  • the setting of the engine speed of the engine has a setting of the engine speed to a maximum
  • Engine speed when the determined contact pressure is greater than a second determined threshold is greater than the first determined threshold.
  • the control device has, for example, a processor and a computer program that can be executed with the aid of the processor.
  • the control device for example that
  • Computer program in particular comprises an algorithm or several algorithms which are / are set up to determine the contact pressure from the detected distance, to compare the determined contact force with the first determined threshold value and the second determined threshold value and / or to set the engine speed.
  • the respective unit for example the processor, can be implemented in terms of hardware and / or also in terms of software.
  • the unit can be designed as a device or as part of a device, for example as a computer or as a microprocessor.
  • the unit can be designed as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
  • a computer program product, such as a computer program means can be provided or supplied, for example, as a storage medium, such as a memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file from a server in a network. This can be done, for example, in a wireless communication network by transmitting a corresponding file with the computer program product or the computer program means.
  • Fig. 1 is a schematic view of a hand machine tool
  • Fig. 2 is a schematic view of a method for operating the
  • Handheld power tool 1 and a method for operating the handheld power tool 1 are described.
  • the hammer drill 1 shows a hammer drill as an exemplary embodiment of handheld power tool 1.
  • the hammer drill 1 has a tool holder 2, in which a shaft end of a tool 3, for. B. a drill or a chisel tool can be used.
  • a primary drive of the rotary hammer 1 is formed by a motor 4, which has a striking mechanism 5 and one
  • Drive shaft 6 drives.
  • An accumulator 7 or a power line (not shown) supplies the motor 4 with current.
  • the hammer drill 1 has a housing 8 which comprises a first housing element 9 and a second housing element 10.
  • the second housing element 10 has a handle 11 on which a user can hold and guide the hammer drill 1.
  • the user can start the rotary hammer 1 by means of a main switch 12.
  • the motor 4 rotates at an adjustable motor speed, the motor 4 drives the drive shaft 6 and sets the drive shaft 6 in a rotary movement about a working axis 13. This turns the tool 3 around the
  • Working axis 13 rotated.
  • the hammer drill 1 can strike the tool 3 in addition to the rotation about the working axis 13 in a striking direction 14 along the working axis 13 in a subsurface. Due to the fact that the striking mechanism 5 drives the tool holder 2, the tool 3 executes striking movements in the striking direction 14 in addition to the rotary movement about the working axis 13.
  • the striking mechanism 5 drives the tool holder 2
  • the tool 3 executes striking movements in the striking direction 14 in addition to the rotary movement about the working axis 13.
  • the drill hammer 1 has an operating mode selector switch (not shown) by means of which the tool holder 2 can be decoupled from the drive shaft 6, so that a chiseling operation of the rotary hammer 1 is possible.
  • the first housing element 9 and the second housing element 10 of the hammer drill 1 are mechanically decoupled from one another by decoupling means 15. On the first
  • the second housing element 10 comprises the handle 11.
  • Vibration of the first housing element 9 is not transmitted or is only transmitted to the handle 11 in a weakened manner.
  • the decoupling is realized by arranging the first housing element 9 within the second housing element 10.
  • the decoupling of the first housing element 9 from the second housing element 10 can be carried out instead
  • the distance L is predetermined by the decoupling means 15 in the idle state, that is to say without the user pressing the rotary hammer 1 against a workpiece.
  • the user who wants to machine a workpiece with the rotary hammer 1 holds the rotary hammer 1 on the decoupled handle 11 and starts the rotary hammer 1 by actuating the main button 10.
  • Motor 4 is initially rotated at a low motor speed.
  • the tool 3 is rotated about the working axis 13.
  • the user places the tool 3 of the hammer drill 1 on the workpiece.
  • This contact force F is essentially in the direction of the workpiece, i. H. aligned along the working axis 13.
  • Housing element 10 is reduced by the contact pressure F of the user.
  • the decoupling means 15 is compressed by the pressing force F. The harder the user presses against the handle 11, the smaller the distance L between the first housing element 9 and the second housing element 10.
  • FIG. 2 shows a schematic view of a method for operating the rotary hammer 1 from FIG. 1.
  • Housing element 9 and the second housing element 10 detected by means of the magnetic field sensor 16.
  • the hammer drill 1 has the magnet 17 in addition to the magnetic field sensor 16.
  • the magnetic field sensor 16 is arranged on the second housing element 10.
  • the magnet 17 is arranged on the first housing element 9.
  • Magnetic field sensor 16 detects the magnetic field of magnet 17, in particular that
  • Magnetic field sensor 16 and the magnet 17 the greater of that
  • Magnetic field sensor 16 detected magnetic field. Consequently, the magnetic field sensor 16 can detect the distance L by detecting the magnetic field of the magnet 17. The magnetic field sensor 16 transmits the distance L as a signal to a control device 18 of the rotary hammer 1.
  • the control device 18 determines the contact pressure F from the detected distance L by a calculation using an algorithm of the control device 18.
  • control device 18 is set up to increase the engine speed of the engine 4 as a function of the determined contact force F if the determined contact force F is greater than a first specific threshold value.
  • control device 18 compares the contact pressure F determined in the second step S2 of the method with the first determined threshold value.
  • the first certain threshold is a certain one
  • control device 18 determines that the determined contact force F is greater than the first determined threshold value and consequently the tool 3 is securely attached to the workpiece, the control device 18 sends a signal to the motor 4 to increase the motor speed.
  • the control device 18 sends a signal to the motor 4, the motor speed of the motor 4 continuously and directly with increasing contact pressure
  • the engine speed starts the impact operation of the tool holder 2.
  • an impact frequency, impact amplitude and / or impact force are continuously increased.
  • the fact that the engine speed is only increased and the impact operation does not start until the first certain threshold value is exceeded makes it easier for the tool to be attached to the workpiece.
  • control device 18 is set up to set the engine speed of the engine 4 to a maximum engine speed if the determined contact force F is greater than a second specific threshold value, the second specific threshold value being greater than the first specific threshold value.
  • control device 18 compares the determined contact pressure F with the second determined threshold value.
  • the second specific threshold value corresponds to a specific contact pressure, which in particular indicates that the tool 3 is securely engaged on the workpiece.
  • control device 18 determines that the determined contact pressure F is greater than the second determined threshold value, that is to say as soon as the tool is securely on the
  • control device 18 sets the engine speed to the maximum Engine speed for which the engine 4 is designed. The maximum performance of the hammer drill 1 is thus available.
  • Drill hammer 1 intuitively through a contact pressure-controlled soft start of the drill hammer 1 and a subsequent contact pressure-controlled maximum power output of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne une machine-outil portative (1), qui comprend un boîtier (8), lequel comporte un premier élément (9) de boîtier et un deuxième élément (10) de boîtier. Le premier élément (9) de boîtier et le deuxième élément (10) de boîtier sont découplés l'un de l'autre et sont mobiles l'un par rapport à l'autre. La machine-outil portative (1) comprend par ailleurs un logement d'outil (2) et un moteur (4) servant à entraîner en rotation et/ou avec percussion le logement d'outil (2). La machine-outil portative (1) comporte en outre un capteur de champ magnétique (16) servant à détecter une distance (L) entre le premier élément (9) de boîtier et le deuxième élément (10) de boîtier. La machine-outil portative (1) comprend par ailleurs un dispositif de commande (18) servant à régler une vitesse de rotation de moteur du moteur (4) en fonction de la distance (L) détectée.
EP19762833.2A 2018-09-20 2019-09-10 Machine-outil portative et procédé pour faire fonctionner une machine-outil portative Pending EP3852978A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18195633.5A EP3626399A1 (fr) 2018-09-20 2018-09-20 Machine-outil portative et procédé de fonctionnement d'une machine-outil portative
PCT/EP2019/074052 WO2020058031A1 (fr) 2018-09-20 2019-09-10 Machine-outil portative et procédé pour faire fonctionner une machine-outil portative

Publications (1)

Publication Number Publication Date
EP3852978A1 true EP3852978A1 (fr) 2021-07-28

Family

ID=63667738

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18195633.5A Withdrawn EP3626399A1 (fr) 2018-09-20 2018-09-20 Machine-outil portative et procédé de fonctionnement d'une machine-outil portative
EP19762833.2A Pending EP3852978A1 (fr) 2018-09-20 2019-09-10 Machine-outil portative et procédé pour faire fonctionner une machine-outil portative

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18195633.5A Withdrawn EP3626399A1 (fr) 2018-09-20 2018-09-20 Machine-outil portative et procédé de fonctionnement d'une machine-outil portative

Country Status (4)

Country Link
US (1) US20210339372A1 (fr)
EP (2) EP3626399A1 (fr)
CN (1) CN112654466A (fr)
WO (1) WO2020058031A1 (fr)

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CN203712650U (zh) * 2013-03-12 2014-07-16 英格索尔-兰德公司 手持式电动工具

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EP3626399A1 (fr) 2020-03-25
CN112654466A (zh) 2021-04-13
WO2020058031A1 (fr) 2020-03-26
US20210339372A1 (en) 2021-11-04

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