EP3222389A1 - Machine-outil electrique portative - Google Patents

Machine-outil electrique portative Download PDF

Info

Publication number
EP3222389A1
EP3222389A1 EP16161334.4A EP16161334A EP3222389A1 EP 3222389 A1 EP3222389 A1 EP 3222389A1 EP 16161334 A EP16161334 A EP 16161334A EP 3222389 A1 EP3222389 A1 EP 3222389A1
Authority
EP
European Patent Office
Prior art keywords
selector switch
function
switch
hand tool
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.)
Withdrawn
Application number
EP16161334.4A
Other languages
German (de)
English (en)
Inventor
Ralf Meixner
Markus Forstner
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
Priority to EP16161334.4A priority Critical patent/EP3222389A1/fr
Publication of EP3222389A1 publication Critical patent/EP3222389A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0015—Tools having a percussion-only mode
    • 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • 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
    • B25D2216/0076—Angular position of the chisel modifiable by hand
    • 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
    • B25D2216/0084—Mode-changing mechanisms
    • B25D2216/0092—Tool comprising two or more collaborating mode-changing mechanisms
    • 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

Definitions

  • the present invention relates to an electric power tool with a tool housing, a mode selector switch and a function selector switch.
  • the operating selector switch is designed to switch a mechanical operating mode of the handheld power tool, preferably chiseling, hammer drilling and / or chisel adjustment.
  • the function selector switch is designed to switch a preferably electric control function, for example clockwise, anticlockwise and / or blocking position (electric motor de-energized) of the power tool.
  • the operation selector and the function selector switch are spatially separated from each other on the tool housing.
  • Electric hand tool machines of the type mentioned, for example in the form of rotary hammers or combi hammers are basically known from the prior art.
  • the object is achieved in that the operating selector switch is mechanically coupled to the function selector switch, such that upon actuation of the selector switch in at least one operating mode, a switching of the function selector switch is effected.
  • the invention includes the knowledge that electric hand tool machines with variously configured function selection switches, in particular also those which have a blocking position as a drive function, are basically known from the prior art. It has been recognized as disadvantageous that such function selection switches, as described for example from the German publication DE 2 410 871 A1 are known, for safety reasons are hardly suitable for powerful devices such as combi hammers.
  • the invention further includes the recognition that typically battery-powered electric hand tool machines are often at their rear end, i. the battery side, be worn. This can lead to an undesired operation of a main switch unit, which leads to an increased risk for the wear of the power tool.
  • a mechanical coupling between the operating selector switch and function selector switch is provided according to the invention.
  • the Function selector switch must be located in the locked position, so that an undesirable start of the power tool is avoided.
  • the portable power tool according to the invention on the one hand, is comfortable because it is not necessary to pay attention to a position of the function selector switch.
  • the invention further includes the realization that when the function selector switch is included, for example, by a main switch unit of the portable power tool, it can be used for a wide range of portable power tools. This is especially true for such function selector switch, which are typically used in manual power tools with direction of rotation.
  • a mode selector switch is to be understood as meaning a switch which can switch a mechanical operating mode, as a rule a gearbox-effective mode.
  • Such modes of operation may be, for example, chiselling, drilling, hammer drilling and the like.
  • the function selection switch is designed to realize a preferably electrical, particularly preferably purely electrical activation function.
  • This can be, for example, a clockwise rotation, in which an electric motor is controlled in such a way that a tool holder - in relation to a viewing direction from a rear side of the hand tool machine in the direction of the tool holder - rotates clockwise.
  • An electric drive function may alternatively or additionally be reverse running, in which an electric motor is controlled in such a way that a tool holder rotates counterclockwise relative to a viewing direction from a rear side of the hand tool machine in the direction of the tool holder.
  • An electric drive function may alternatively or additionally be a blocking position in which an electric motor of the electric hand tool machine is de-energized.
  • the mode selector switch is coupled via a link control with the function selector switch.
  • the slide control can have a control link, into which a sliding block encompassed by the function selector switch intervenes.
  • the sliding block is arranged on a switching pivot arm of the function selector switch.
  • the sliding block is arranged at one end of a switching pivot arm of the function selector switch.
  • the function selector switch can be actuated transversely to a main switching direction of the main switch unit.
  • Such a transverse movement may be part of a pivoting movement of a Schwenkschaltarms the function selector switch.
  • the slide control has a control rod which is operatively connected to the operating selector switch.
  • the operation selector switch is designed as a slide switch, which can be preferably operated in the longitudinal direction of the power tool.
  • an actuation direction of an operating selector switch designed as a slide switch runs parallel (axially) to a main switching direction of the main switch unit. Accordingly, a control rod located between operating selector switch and link profile can also be oriented axially relative to the direction of movement of an operating selector switch designed as a slide switch.
  • the operating selector switch can be designed as a rotary switch. In this case, preferably an eccentric connection of the slide control or the control rod to the operating selector switch.
  • the control link may have a link profile, which has a control position for each electrical control function of the function selector switch. If the function selection switch has, for example, a position for clockwise rotation, blocking position and counterclockwise rotation, then the link profile can have corresponding positions.
  • the gate profile may be configured to reduce a number of drive functions actually present on the function selector switch. If, for example, the function selector switch is designed for right-handed rotation, left-hand rotation and a blocking position, the sliding-section profile can be designed and arranged such that only one clockwise rotation and the blocking position can be assumed on the function selection switch.
  • the link profile is formed trough-shaped, preferably such that only a one-sided swinging a shift swivel arm of the function selector switch is possible.
  • the hand tool has a main switch unit for the electrical switching on and off of the power tool.
  • the function selector switch can be integrated in the main switch unit.
  • the operating selector switch as a mechanical operating mode, has a position for chisel adjustment, in which a chisel to be picked up or picked up in the handheld power tool can be adjusted about a rotational drive axis of the handheld power tool.
  • a forward and backward movement of a bit received in the portable power tool takes place in the longitudinal direction to the rotational drive axis and without rotation about the rotational drive axis.
  • rotation of a pick-up tool accommodated in the hand-held power tool preferably takes place about a rotational drive axis as well as along this axis.
  • the function selector switch as a drive function, a locking position, in which an electrical control of a motor of the power tool is electrically and / or mechanically prevented.
  • the electric hand tool is designed as a hammer drill or combi hammer, which is powered by a supply battery power.
  • the handheld power tool may have a supply battery which is received in or accommodated in a receiving bay of the handheld power tool designed therefor.
  • FIG. 1 An electric hand tool 100 is in Fig. 1 shown.
  • This hand tool 100 has a tool housing 90, a mode selector switch 10 and a function selector switch 20.
  • the operation selector 10 of the power tool 100 is like the FIGS. 1 to 6 can be removed, designed as a slide switch.
  • the operation selector switch 10 and the function selector switch 20 are arranged spatially separated from one another on the tool housing 90.
  • the operation selector switch 10 is designed to switch exactly three mechanical operating modes, namely chisels M, chisel adjustment O and hammer drilling HB.
  • the function selector switch 20 of the power tool 100 in Fig. 1 is formed an electrical control function clockwise RL (see. Fig. 3 and 4 ) and a locking position SP (see. Fig. 2 and Fig. 5 ).
  • operation selector switch 10 is mechanically coupled to the function selector switch, such that upon actuation of the selector switch 10 in one of the operating modes M, HB, O, a switching of the function selector switch 20 is effected.
  • the handheld power tool has a main switch unit 30 for electrically switching on and off the handheld power tool 100.
  • the main switch unit 30 can be operated in the main switching direction HR by pressing or releasing the main switch unit 30.
  • the main switching unit 30 may have a potentiometer, which is driven, for example, proportional to a deflection of the main switch unit 30 in the main switching direction HR, or changes its Potentiometerwiderstand.
  • the function selector switch 20 is integrated into the main switch unit 30, this may for example also the Fig. 7 be removed.
  • the operating selector switch 10 designed as a slide switch can be moved axially relative to the main switching direction of the main switch unit 30, the operating selector switch 10 being coupled to the function selector switch 20 via a slide control 50.
  • the slide control 50 has a control cam 55 into which a sliding block 15 encompassed by the function selection switch 20 engages. This will be later with reference to the FIGS. 4 to 6 explained in more detail.
  • the electric power tool is designed as a combination hammer having a supply battery 80, which is received in the power tool 100.
  • a supply battery 80 is an electrical supply of the power tool 100.
  • Fig. 2 the electric hand tool 100 is shown in the mechanical operating mode chisel adjustment O.
  • the mechanical mode selector switch 10 which is designed as a slide switch, in one of exactly three positions, more precisely, the center position indicating the position for chisel adjustment O.
  • a chisel 200 accommodated in the hand tool 100 is adjustable about the rotational drive axis R of the hand tool 100.
  • the function selector switch 20 is in the locked position, so that an electrical control of the motor (not shown) of the power tool 100 is electrically prevented.
  • This coupling of chisel adjustment O with locked position SP of the function selector switch can also be Fig. 5 be removed.
  • Fig. 3 shows the power tool 100, wherein the operation selector switch 10 is in the mechanical operating mode chisel M befindlich. About the link control 50, the operation selector switch 10 is mechanically coupled to the function selector switch 20 such that in mechanical operation mode hammer drilling HB a control function right-hand side of the function selector switch 20 is taken.
  • Fig. 4 shows a detail of the mechanical coupling between operating selector switch 10 and function selector switch 20, in the operating mode hammer drilling HB, to explain the slide control 55.
  • the operating selector switch 10 in Fig. 4 is located in Hammerbohren HB.
  • a control rod 15 is connected, which is mounted in a sliding bearing 17.
  • a control link 55 is arranged with a link profile 23.
  • the link profile 23 is conversely trough-shaped.
  • the dashed shown function selector switch 20 has a switching pivot arm 27 with a final sliding block 25.
  • the sliding block 25 engages the link profile 23 of the link control 50.
  • the operation selector switch 10 and the function selector switch 20 are coupled such that in the operation mode hammer drilling HB the control function right-hand rotation RL of the function selector switch 20 is taken.
  • the sliding block 25 is located in a at the end of an arm of the trough-shaped link profile 23rd
  • the operation selector switch 10 in the operating mode chisel adjustment O shown is in Fig. 5 now the operation selector switch 10 in the operating mode chisel adjustment O shown.
  • the Wegschwenkarm 27 of the function selector switch 20 is in the locked position SP, that is, the motor (not shown) of the power tool 100 is not acted upon by a current.
  • the switching pivot arm 27 extends parallel to the main switching direction HR of the main switch unit whose part is the function selector switch 20.
  • Fig. 6 finally shows the operation selector switch 10 in drive function anti-clockwise LL. Again Fig. 6 can be removed, the operation selector switch 10 and the function selector switch 20 are coupled such that in the operating mode chiseling M of the function selector switch 20 is located in the control function anti-clockwise LL. This will, as already with reference to Fig. 4 described achieved by corresponding trough-shaped configuration of the link profile 23.
  • Fig. 7 schematically shows the function selector switch 20 and the slide control 50 in a perspective view, wherein the slide control 50 is not mounted for purposes of illustration, that is, the sliding block 25 does not protrude into the link profile 23 a.
  • the function selector switch 20 in the transverse direction Q is pivotable.
  • the function selector switch 20 on a switching pivot arm 27, at the end of the sliding block 25 is formed.
  • the function selector switch 20 is integrated into a main switch unit 30 which can be actuated in the main switch direction HR. Above the sliding block 25, the link profile 23 of the control link 55 is shown. A leading to the operation selector switch 10 control rod is in Fig. 7 not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP16161334.4A 2016-03-21 2016-03-21 Machine-outil electrique portative Withdrawn EP3222389A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16161334.4A EP3222389A1 (fr) 2016-03-21 2016-03-21 Machine-outil electrique portative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16161334.4A EP3222389A1 (fr) 2016-03-21 2016-03-21 Machine-outil electrique portative

Publications (1)

Publication Number Publication Date
EP3222389A1 true EP3222389A1 (fr) 2017-09-27

Family

ID=55646320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16161334.4A Withdrawn EP3222389A1 (fr) 2016-03-21 2016-03-21 Machine-outil electrique portative

Country Status (1)

Country Link
EP (1) EP3222389A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018214092A1 (de) * 2018-08-21 2020-02-27 Robert Bosch Gmbh Umschaltvorrichtung für einen Bohrhammer und Bohrhammer mit einer Umschaltvorrichtung
CN111542417A (zh) * 2018-01-04 2020-08-14 罗伯特·博世有限公司 工具机设备
US11498197B2 (en) 2018-09-24 2022-11-15 Milwaukee Electric Tool Corporation Power tool including input control device on top portion of housing
US12059792B2 (en) 2019-08-16 2024-08-13 Milwaukee Electric Tool Corporation Mode selection of a power tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410871A1 (de) 1974-03-07 1975-09-18 Marquardt J & J Elektrischer schalter mit sperreinrihtung
DE19942156A1 (de) * 1999-09-03 2001-03-08 Hilti Ag Umschalteinrichtung für multifunktionale handgeführte Werkzeugmaschinen
DE102004018084B3 (de) * 2004-04-08 2005-11-17 Hilti Ag Hammerbohrgerät
EP1607189A2 (fr) * 2004-06-16 2005-12-21 Makita Corporation Outil à impact motorisé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410871A1 (de) 1974-03-07 1975-09-18 Marquardt J & J Elektrischer schalter mit sperreinrihtung
DE19942156A1 (de) * 1999-09-03 2001-03-08 Hilti Ag Umschalteinrichtung für multifunktionale handgeführte Werkzeugmaschinen
DE102004018084B3 (de) * 2004-04-08 2005-11-17 Hilti Ag Hammerbohrgerät
EP1607189A2 (fr) * 2004-06-16 2005-12-21 Makita Corporation Outil à impact motorisé

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111542417A (zh) * 2018-01-04 2020-08-14 罗伯特·博世有限公司 工具机设备
DE102018214092A1 (de) * 2018-08-21 2020-02-27 Robert Bosch Gmbh Umschaltvorrichtung für einen Bohrhammer und Bohrhammer mit einer Umschaltvorrichtung
US11518015B2 (en) 2018-08-21 2022-12-06 Robert Bosch Gmbh Switching device for a hammer drill and hammer drill comprising a switching device
US11498197B2 (en) 2018-09-24 2022-11-15 Milwaukee Electric Tool Corporation Power tool including input control device on top portion of housing
US11839963B2 (en) 2018-09-24 2023-12-12 Milwaukee Electric Tool Corporation Power tool including input control device on top portion of housing
US12059792B2 (en) 2019-08-16 2024-08-13 Milwaukee Electric Tool Corporation Mode selection of a power tool

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