EP4308350A1 - Outil électrique portatif, en particulier défonceuse et/ou tondeuse - Google Patents

Outil électrique portatif, en particulier défonceuse et/ou tondeuse

Info

Publication number
EP4308350A1
EP4308350A1 EP22709709.4A EP22709709A EP4308350A1 EP 4308350 A1 EP4308350 A1 EP 4308350A1 EP 22709709 A EP22709709 A EP 22709709A EP 4308350 A1 EP4308350 A1 EP 4308350A1
Authority
EP
European Patent Office
Prior art keywords
machine
section
drive motor
battery pack
machine housing
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
EP22709709.4A
Other languages
German (de)
English (en)
Inventor
Thorsten Kuehn
Michael Wall
Mitchell John Hubbard
Julius Schlicht
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 EP4308350A1 publication Critical patent/EP4308350A1/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
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/10—Portable hand-operated wood-milling machines; Routers

Definitions

  • Hand machine tools in particular routers and/or edge routers
  • the present invention relates to a hand-held power tool, in particular a router and/or edge router, with a machine housing in which an electric drive motor is arranged, which is assigned an output shaft for rotating the drive of an insert tool, and with at least one battery pack for supplying energy to the electric drive motor. and from a support device for guiding the machine housing on a workpiece, where the support device has a support section for the machine housing on which a base plate is provided for contact with the workpiece, and the base plate has a passage for the insert tool.
  • Mains-independent, battery-powered routers are known from the prior art, which are often guided by hand.
  • Hand-held routers of larger design are usually designed for two-handed operation, while more compact routers with a substantially cylindrical machine housing can often be used with one hand.
  • the battery pack required for operation is generally placed above the drive motor.
  • the battery pack is arranged essentially centrally to the output shaft.
  • the present invention relates to a hand-held power tool, in particular a router and/or edge router, with a machine housing in which an electric drive motor is arranged, which has an output shaft for rotating associated with the drive of an application tool, and with at least one battery pack for supplying energy to the electric drive motor, and a support device for guiding the machine housing on a workpiece, where the support device has a support section for the machine housing, on which a base plate for resting on the Workpiece is provided, and wherein the base plate has a passage for the application tool.
  • At least one battery pack is arranged in a first machine section, the electric drive motor is arranged in a second machine section and a handle for a user is arranged at least in sections in a third machine section, with the three machine sections being arranged next to one another along a transverse axis which is aligned at a predetermined angle, in particular at least approximately perpendicular to the output shaft of the drive motor.
  • At least two machine sections can also have a vertical offset relative to one another in relation to the transverse axis.
  • the at least one battery pack is arranged on a connection interface that is aligned essentially parallel to the output shaft of the drive motor on the machine housing.
  • the battery pack is preferably exchangeable. This enables the battery pack to be replaced quickly and easily.
  • the base plate preferably continues in a lateral widening section.
  • the lateral widening section is supported against the support section by means of at least one support structure.
  • the at least one battery pack is preferably spaced vertically from the lateral widening section of the base plate.
  • connection interface is preferably arranged on an end area of the machine housing on the battery pack side, and an electronic control device is integrated in the end area on the battery pack side.
  • the drive motor is preferably arranged at least in sections in an end region of the machine housing on the tool side, which at least in sections is accommodated and fixed in the support section of the support device.
  • the handle in the third machine section preferably encompasses the machine housing at least partially coaxially.
  • a technically advantageous development is characterized by a machine center of gravity that is formed at a predetermined distance relative to a side of the base plate facing the workpiece that is smaller than the overall length of the machine housing, with the machine center of gravity being arranged at least approximately between the first and second machine sections is.
  • the handle is preferably designed for one-handed operation of the hand-held power tool.
  • the handheld power tool can be operated with one hand in a simple manner.
  • FIG. 1 shows a side view of a hand-held power tool with a schematically indicated position of three machine sections for a battery pack, a drive motor and a handle
  • FIG. 2 is a perspective side view of a router designed as he inventive hand tool with a workpiece to be machined
  • Fig. 3 is a side view of the handheld power tool of FIG. 2 in the horizontal milling operation or in the edge milling operation.
  • Fig. 1 shows an exemplary hand tool 100
  • the illustrative Ma machine housing 104 has.
  • An electric drive motor 112 for driving a tool holder 130 in rotation by means of an output shaft 114 of the electric drive motor 112 is preferably arranged in the machine housing 104 .
  • the hand-held power tool 100 is only illustratively designed here as a router 102, but can alternatively also be designed as an edge router or be used in edge milling operation (cf. FIG. 3).
  • the tool holder 130 is preferably designed to receive an insertion tool 126, for example a milling tool 128, an edge milling cutter or the like, which is only indicated in the drawing by dashed lines.
  • an insertion tool 126 for example a milling tool 128, an edge milling cutter or the like.
  • a rotational movement of the electrical drive motor 112 is preferably transmitted to the insertion tool 126 accommodated in the tool holder 130, preferably with little loss.
  • From the drive shaft 114 and the tool holder 130 with the insert tool 126, or its insert tool axis, are here only for example rotationally symmetrical to a longitudinal center axis 150.
  • the hand-held power tool 100 preferably has an operating element 106, such as an electrical (slide) switch, for switching the hand-held power tool 100 or the electrical drive motor 112 on and off by a user, not shown.
  • the electric drive motor 112 is connected by means of one, preferably from the machine housing 104
  • Removable battery packs 110 can be supplied with the operationally necessary electrical energy or with electricity.
  • the battery pack 110 is illustratively arranged on a lateral connection interface 120, which is preferably aligned essentially parallel to the output shaft 114 of the electric drive motor 112 on the machine housing 104, and is preferably easily replaceable.
  • multiple battery packs 110 can be used to ensure virtually uninterrupted operation of handheld power tool 100, with one battery pack 110 being connected to handheld power tool 100 via connection interface 120, while at least one other battery pack, for example, is charged in an external charging station (not shown). can be.
  • a support device 134 for guiding the machine housing 104 on a workpiece 132 is preferably provided, the support device 134 preferably having a central support section 136 for the machine housing 104 .
  • a base plate 144 which is flat on the bottom side and is designed to rest on the workpiece 132 is preferably formed on the support section 136 .
  • the base plate 144 also has a passage 146 or an opening with a sufficiently large area for the insertion tool 126.
  • the battery pack 110 is arranged in a first machine section Mi
  • the electric drive motor 112 is located in a second machine section M2
  • a handle 160 for preferably one-handed operation by the user is positioned in a third machine section M3.
  • the handle 160 can be ergonomically designed and, for example, rubberized.
  • a lower or higher number of machine sections can also be provided than the three machine sections M 1 , 2 , 3 , which are only exemplary here, with at least two machine sections being provided.
  • machine section defines an abstract spatial area, or a zone or installation space of handheld power tool 100, to which a functional and/or massive or heavy main component of handheld power tool 100 is assigned.
  • Such functional and/or heavy main components of hand-held power tool 100 can—as shown here only by way of example—for example electric drive motor 112, battery pack 110 or else the handle 160 for the user.
  • the integration of the functional and/or heavy main components takes place in actually available installation spaces E 1 , 2 , 3 of the hand-held power tool 100 , which are only indicated in the drawing and which generally only take up part of the respectively assigned machine sections M 1 , 2 , 3 .
  • the installation spaces E 1 , 2 , 3 are surrounded on all sides by a constructively predetermined envelope surface of the entire hand-held power tool 100 including the battery pack 110 , the contour line 164 of which is also only indicated in the drawing. Immediately adjacent installation spaces E 1 , 2 , 3 may intersect or penetrate one another, resulting in volume restrictions for the functional and/or heavy main component to be integrated in each case. For example, the installation spaces E2,3 in FIG. 1 overlap, so that an installation volume of the electric drive motor 112 has to be reduced at the expense of part of the space required for the handle 160 or vice versa.
  • the three machine sections M I , 2, 3 are positioned next to one another here essentially along a transverse axis Q, i.e. lying serially one after the other, with the transverse axis Q at a predetermined angle a, in particular approximately perpendicular or at an angle a of around 90°. in relation to the output shaft 114 of the drive motor 112 with the tool holder 130 or the longitudinal center axis 150.
  • the main functional components can be positioned vertically offset in relation to the transverse axis Q within the machine sections M1.2.3—as shown here by way of example.
  • Fig. 2 shows the hand-held power tool 100 from Fig. 1, used as an example as a router 102, with the machine housing 104 and the electric drive motor 112 integrated therein, the output shaft 114 of which has the tool holder 130 with the insert tool 126 clamped therein in the form of the example, approximately cylindrical milling tool 128 drives rotating.
  • the output shaft 114 of the electric drive motor 112, the tool holder 130 and the insert tool 126 or its insert tool axis are each configured to be rotationally symmetrical to the longitudinal central axis 150.
  • the longitudinal center axis 150 runs essentially perpendicularly to an upper side 166 of the workpiece 132 to be machined and approximately parallel to the direction of the gravitational acceleration g.
  • the detachable battery pack 110 is connected to the machine housing 104 via the connection interface 120 .
  • the electric drive motor 112 can be switched on and off by the user at least by means of the operating element 106 and, if necessary, its speed can also be continuously adjusted.
  • the hand-held power tool 100 can be guided by the user along the upper side 166 of the workpiece 132 by means of the support device 134 .
  • Insertion tool 126 permits machining in the area of the upper side 166 of the workpiece 132 up to its underside 168, if necessary.
  • the support device 134 also includes the support section 136 for receiving the machine housing 104 of the hand-held power tool 100, wherein on the support section 136 and on the support structure 158 the base plate 144 is provided with the passage 146 for the insertion tool 126.
  • the footplate 144 preferably continues into a lateral widening portion 152 .
  • a side 148 of foot plate 144 facing the workpiece forms an enlarged, preferably continuous, planar contact surface for top side 166 of workpiece 132 for guiding hand-held power tool 100.
  • lateral widened section 152 is preferably braced by means of at least one support structure 158 braced like a truss the support portion 136 of the support device 134 is supported.
  • the battery pack 110 is preferably spaced vertically above the lateral widening section 152 of the base plate 144 .
  • the battery pack 110 is preferably positioned on an end region 122 of the machine housing 104 on the battery pack side, with an electronic control device 118 for controlling the electric drive motor 112 preferably being integrated in the end region 122 on the battery pack side.
  • the detailed technical design of such an electronic control device 118 and the structural design of the electric, preferably electronically commutated, drive motor 112 are sufficiently familiar to a person skilled in the art in the field of hand-held power tools, so that a more detailed explanation can be dispensed with in order to keep the description concise and brief.
  • the electric drive motor 112 is preferably arranged at least in sections in an end region 124 of the machine housing 104 on the insertion tool side. This is preferably at least partially in the Tragab section 136 of the support device 134 was added and fixed there.
  • the handle 160 includes, for example, starting from the third machine section (cf. FIG. 1; reference number M3), the machine housing 104 is at least partially coaxial. However, the handle 160 can also be arranged exclusively in the third machine section (cf. FIG. 1; reference symbol M 3 ). Here, the handle 160 is preferably designed for one-handed operation of the handheld power tool 100 by the user.
  • the machine housing 104 of the hand-held power tool 100 has an axial length L by way of illustration.
  • a machine center of gravity S is preferably located at a predetermined vertical distance A relative to a side 148 of the base plate 144 facing the workpiece or to the top 166 of the workpiece 132.
  • the vertical distance A is preferably smaller than the overall length L of the machine housing 104 Hand tool 100 dimensioned.
  • machine point S is preferably between the first and second machine sections (cf. Fig. 1; reference symbols M I , 2), or between battery pack 110 and electric drive motor 112 in the area of the connection interface 120 of the battery pack 110.
  • FIG. 3 shows the hand-held power tool 100 from FIG. 2 in an exemplary horizontal milling operation or in edge milling operation.
  • the machine housing 104 of the hand-held power tool 100 or the router 102 includes, among other things, the electric drive motor 112 for driving the insert tool 126 in rotation - which is embodied as an edge cutter 174 here, just as an example for the edge milling operation - and the electronic control device 118 with the Operating element 106 integrated.
  • the battery pack 110 is connected to the machine housing 104 via the connection interface 120 .
  • a center of gravity axis SA runs through the machine center of gravity S.
  • the support device 134 with the base plate 144 which is oriented here in contrast to Fig. 1 and Fig. 2, approximately parallel to the direction of gravitational acceleration g, and the lateral widened section 152 formed thereon, is used in conjunction with a guide roller 176 of the edge cutter 174 resting on the top side 166 for guiding hand-held power tool 100 along an end face 180 of workpiece 132.
  • End face 180 together with top side 166 of workpiece 132, defines an edge 190 to be milled, here by way of example a chamfer-like edge, or a chamfer-like edge profile of workpiece 132.
  • the center of gravity axis S A which runs approximately parallel to the direction of gravitational acceleration g and perpendicular to the longitudinal center axis 150, is illustrated here at a distance A from the end face 180 of the workpiece 132 unmachined by the edge milling process.
  • the tilting moment K is reduced in comparison to known designs of handheld power tools - in which a battery pack 200 indicated by a dashed outline represents an axial or linear continuation of an approximately rod-shaped machine housing 104, or the Battery pack 110 is formed and arranged rotationally symmetrical to the longitudinal central axis 150 as an extension of the machine housing 104 - advantageously reduced.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sawing (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

L'invention concerne un outil électrique portatif (100), en particulier une défonceuse (102) et/ou une tondeuse, comprenant un boîtier de machine (104), dans lequel un moteur d'entraînement électrique (112) est agencé de manière à être apparié à un arbre de sortie (114) pour entraîner en rotation un outil d'insertion (126), au moins un bloc-batterie (110) pour fournir de l'énergie au moteur d'entraînement électrique (112) et un dispositif de support (134) pour guider le boîtier de machine (104) sur une pièce à travailler (132), le dispositif de support (134) présentant une section de support (136) pour le boîtier de machine (104), une plaque de pied (144) étant disposée sur le dispositif de support pour entrer en contact avec la pièce à travailler (132) et la plaque de pied (144) a un passage (146) pour l'outil d'insertion (126). Ledit au moins un bloc-batterie (110) est disposé dans une première section de machine (M1), le moteur d'entraînement électrique (112) est disposé dans une deuxième section de machine (M2) et une poignée (160) pour un utilisateur est disposée dans une troisième section de machine (M3) au moins dans certaines sections. Les trois sections de machine (M1,2,3) sont disposées les unes à côté des autres le long d'un axe transversal (Q) qui est aligné selon un angle (α), en particulier au moins approximativement perpendiculaire, à l'arbre de sortie (114) du moteur d'entraînement (112).
EP22709709.4A 2021-03-15 2022-03-01 Outil électrique portatif, en particulier défonceuse et/ou tondeuse Pending EP4308350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021202493.9A DE102021202493A1 (de) 2021-03-15 2021-03-15 Handwerkzeugmaschine, insbesondere Oberfräse und/oder Kantenfräse
PCT/EP2022/055141 WO2022194541A1 (fr) 2021-03-15 2022-03-01 Outil électrique portatif, en particulier défonceuse et/ou tondeuse

Publications (1)

Publication Number Publication Date
EP4308350A1 true EP4308350A1 (fr) 2024-01-24

Family

ID=80735837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22709709.4A Pending EP4308350A1 (fr) 2021-03-15 2022-03-01 Outil électrique portatif, en particulier défonceuse et/ou tondeuse

Country Status (5)

Country Link
US (1) US20240149425A1 (fr)
EP (1) EP4308350A1 (fr)
CN (1) CN117062700A (fr)
DE (1) DE102021202493A1 (fr)
WO (1) WO2022194541A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5902080A (en) * 1997-07-11 1999-05-11 Roto Zip Tool Corporation Spiral cutting tool with detachable battery pack
US7165300B2 (en) * 2004-08-09 2007-01-23 Black & Decker Inc. Portable pocket cutter
WO2007093857A1 (fr) * 2006-02-15 2007-08-23 Jinding Group Co. Ltd. Machine outil rotative
JP2014148017A (ja) 2013-02-01 2014-08-21 Makita Corp 手持式電動切削機
JP6246160B2 (ja) 2015-05-25 2017-12-13 リョービ株式会社 充電式電動工具
DE102020206756A1 (de) 2019-09-02 2021-03-04 Robert Bosch Gesellschaft mit beschränkter Haftung Werkzeugmaschinenvorrichtung
EP4052874A4 (fr) 2019-10-31 2023-01-04 Koki Holdings Co., Ltd. Défonceuse à bois

Also Published As

Publication number Publication date
WO2022194541A1 (fr) 2022-09-22
DE102021202493A1 (de) 2022-09-15
CN117062700A (zh) 2023-11-14
US20240149425A1 (en) 2024-05-09

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