WO2012089637A2 - Dispositif de serrage de machine-outil à main - Google Patents

Dispositif de serrage de machine-outil à main Download PDF

Info

Publication number
WO2012089637A2
WO2012089637A2 PCT/EP2011/073899 EP2011073899W WO2012089637A2 WO 2012089637 A2 WO2012089637 A2 WO 2012089637A2 EP 2011073899 W EP2011073899 W EP 2011073899W WO 2012089637 A2 WO2012089637 A2 WO 2012089637A2
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
unit
rotation
jaw coupling
coupling member
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.)
Ceased
Application number
PCT/EP2011/073899
Other languages
German (de)
English (en)
Other versions
WO2012089637A3 (fr
Inventor
Tobias Lutz
Szabolcs Gyori
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 WO2012089637A2 publication Critical patent/WO2012089637A2/fr
Publication of WO2012089637A3 publication Critical patent/WO2012089637A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools

Definitions

  • Hand tool clamping devices comprise a clamping unit which has a bolt-shaped clamping element for clamping a machining tool to a spindle in an axial direction.
  • the invention is based on a hand tool clamping device, in particular an oscillating hand tool clamping device, with at least one clamping unit, which comprises at least one bolt-shaped clamping element for clamping a machining tool to a spindle in an axial direction.
  • the hand tool clamping device has at least one anti-rotation unit, which is provided to secure at least one clamping element of the clamping unit during a clamping operation and / or a release operation against rotation.
  • a “clamping unit” is to be understood here in particular as a unit that has a
  • a hand tool ensures.
  • the term "bolt-shaped” is to be understood here in particular as meaning a geometric shape which is at least essentially rotationally symmetrical and which has a longitudinal extent along an axis of rotation which, with respect to a dimension At least twice as large as an extension along a direction transverse to the longitudinal extent, in particular a diameter, the geometric shape, but preferably many times as large as an extension along the direction transverse to the longitudinal extent, in particular the diameter.
  • substantially rotationally symmetrical is meant in particular a symmetry of a component and / or a portion of the component, wherein upon rotation of the component and / or the portion of the component to any Wnkel about an axis, in particular a central axis along the longitudinal extent
  • the bolt-shaped clamping element of the clamping unit is particularly preferably designed as a threaded bolt, but it is also conceivable for the clamping element to be used in another, a person skilled in the art
  • the term "axial direction” should in particular define a direction which preferably at least substantially parallel to one
  • Rotation axis and / or pivot axis of the spindle extends.
  • the term "substantially parallel” should be understood to mean, in particular, an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction is a deviation, in particular less than 8 °, advantageously less than 5 ° and especially
  • An "anti-rotation unit” is to be understood here in particular as a unit which is intended to be an element, in particular a clamping element, during an action of a torque on the element against rotation relative to a further element, in particular relative to a power tool housing of the power tool and / or relative to the spindle to secure.
  • the term "provided” is to be understood to mean, in particular, specially designed and / or specially equipped
  • the anti-rotation unit is preferably designed as a form-locking unit, but it is also conceivable that the anti-rotation unit is designed as a force-locking unit or by another person skilled in the art
  • the term "during a clamping operation and / or a release operation” is to be understood here as meaning, in particular, a process in which a force and / or torque are directly transmitted by means of a control element, in particular by means of an operating lever and / or can act indirectly on the clamping element.
  • the tensioning element is preferred during a tensioning operation and / or a release operation by means of a mechanism, in particular a thread, due to a torque along the axial direction for clamping the tool moves.
  • a mechanism in particular a thread
  • co-rotation of the tensioning element during a tensioning operation and / or a release operation can be advantageously prevented.
  • a high level of operating comfort can be achieved.
  • a compact hand tool clamping device can be achieved.
  • the anti-rotational unit is designed as a dog clutch unit.
  • a "dog clutch unit” is to be understood here as meaning, in particular, a unit which has at least two mutually corresponding jaw coupling members which engage in one another in a form-locking manner for the transmission of forces and / or torques
  • Claw coupling members may extend with respect to a coupling plane at least substantially parallel to the coupling plane and / or at least substantially perpendicular to the coupling plane.
  • a "coupling plane” is to be understood here as meaning, in particular, a plane in which the claw coupling elements engage one another at least partially in a form-fitting manner define a reference direction, wherein the direction and the reference direction, in particular in a plane, include an angle of 90 ° and the Wnkel a maximum deviation of particular less than 8 °, advantageously less than 5 ° and more preferably less than 2 °. It can be advantageously achieved a positive connection for preventing rotation of the clamping element.
  • the jaw coupling unit has at least one annular-shaped jaw coupling member which is arranged on the clamping element.
  • annular is meant in particular a geometrical shape which is formed by a circular ring and / or of segments which are arranged along a circumferential direction spaced from one another and which, viewed as a whole, viewed along the circumferential direction a
  • the jaw coupling member is annular about a Center axis of the clamping element arranged.
  • a "center axis" is to be understood here as meaning, in particular, an axis about which the clamping element is rotationally symmetrical.
  • an “actuating element” is to be understood here as meaning, in particular, an element which is actuated directly by an operator for direct and / or indirect actuation of the tensioning element
  • the actuating element can be actuated by means of a positive and / or non-positive connection, such as a press fit, etc
  • non-rotatable is meant in particular a connection between at least two elements, in which a relative movement between the at least two elements except for a material-related deformation property and / or up to a production-related tolerance at least substantially is prevented.
  • the actuating element is formed integrally with the clamping element. It can structurally simple trained as a jaw clutch unit against rotation unit can be achieved, which can secure the clamping element at high forces and / or torques advantageous against rotation.
  • the clamping element has at least one clamping surface, to which at least one jaw coupling member of the dog clutch unit is arranged adjacent.
  • a "clamping surface” is to be understood here as meaning, in particular, a surface which is intended to form a contact surface for the machining tool after a clamping operation and / or during a clamping operation.
  • the term "adjacent” is to be understood here in particular as an arrangement of at least two components relative to one another, wherein the two components have a spacing relative to one another, which is in particular less than 5 mm and before - zugt is less than 2 mm.
  • the two components viewed in a plane, lie directly against one another. It can be advantageously achieved a compact jaw clutch unit.
  • the jaw coupling unit comprises at least one jaw coupling member having at least one sawtooth-like anti-rotation element which extends at least substantially perpendicular to a clamping surface of the clamping element.
  • sawtooth should in particular define a geometric shape which has at least two mutually at least substantially inclined and / or curved sides, preferably in one
  • Points are connected to each other and include a Wnkel, in particular an acute angle.
  • the anti-rotation element in this case in a plane perpendicular to a reference surface, in particular to a clamping surface of the clamping element, extending plane on a triangular shape and / or a spine form.
  • the anti-rotation elements have another, a skilled person appear appropriate design. An advantageous introduction of force into the anti-rotation elements for securing the clamping element against rotation can be achieved.
  • the jaw coupling unit has a jaw coupling member, which is arranged on a rotary driving element of the clamping unit, which is intended to rotatably couple the machining tool to the spindle.
  • a “rotational drive element” is to be understood here as meaning, in particular, an element which is intended to transmit forces and / or torques of a drive unit for machining a workpiece to the machining tool by means of the machining tool.
  • the jaw coupling element arranged on the rotary driving element has at least one sawtooth-like anti-rotation element.
  • the anti-rotation element of the jaw coupling member arranged on the clamping element preferably has an at least substantially identical geometry. metric shape to the anti-rotation element of the rotary engaging element arranged on the jaw coupling member.
  • Particularly preferred are the anti-rotation elements, viewed in an assembled state, each arranged rotated by approximately 180 ° relative to each other. It can be achieved structurally simple rotation of the clamping element by means of mutual engagement of the anti-rotation elements during a clamping operation and / or release operation.
  • the jaw coupling member arranged on the rotary driving element has at least two anti-rotation elements which delimit at least one recess of the anti-rotation unit which is provided for receiving an anti-rotation element of a jaw coupling member arranged on the clamping element.
  • the facing side surfaces of the anti-rotation lock an angle less than 180 °.
  • the recess is particularly preferably limited by two facing side surfaces of the two Vercardsurchurngsiata.
  • the facing side surfaces of the anti-rotation elements preferably enclose an angle of less than 90 ° and particularly preferably less than 60 °.
  • at least one insertion surface for the anti-rotation element of the jaw coupling member arranged on the clamping element can be achieved.
  • the anti-rotation elements of the jaw coupling element arranged on the rotational driving element in particular in an assembled state of the clamping element, extend along the axial direction at least substantially in the direction of the jaw coupling member arranged on the clamping element.
  • the anti-rotation elements extend along another direction that appears appropriate to a person skilled in the art.
  • the anti-rotation elements may, for example, extend along a direction parallel to the clamping surface extending direction and cooperate with a thread-like recess on the tool holder for preventing rotation, wherein the recess, for example, in along the Axial extending grooves merges.
  • the invention is based on a hand tool with a hand tool clamping device according to one of the preceding claims. It can be advantageously achieved a high ease of use for an operator of the power tool.
  • FIG. 1 shows a handheld power tool according to the invention with a hand tool clamping device according to the invention in a schematic illustration
  • FIG. 2 is a sectional view along the line II-II of Figure 1 of the hand tool according to the invention in a schematic representation
  • Fig. 3 is a detailed view of an anti-rotation unit of the hand tool clamping device according to the invention in a schematic representation
  • FIG. 1 shows an electrically operated handheld power tool 64 with a handheld power tool clamping device 10.
  • the handheld power tool 64 includes a handheld power tool housing 66, which encloses an electric motor unit 68, a transmission unit 70 and an output unit 72 of the handheld power tool 64.
  • the portable power tool housing 66 in this case comprises two housing half shells 74, 76, which are detachably connected to one another along a plane passing through an axial direction 20.
  • the axial direction 20 extends coaxially to a rotation axis 78 of a hollow spindle 80 designed as a spindle 18 of the output unit 72 ( Figure 2).
  • On a tool holder 84 of the power tool clamping device 10 is a machining tool 16 for machining of workpieces fastened.
  • the tool holder 84 is non-rotatably connected to the hollow spindle 80 by means of a press fit, so that a pivoting movement and / or rotational movement of the hollow spindle 80 can be transmitted to the tool holder 84 (FIG. 2).
  • the tool holder 84 is connected to the hollow spindle 80 by means of another type that appears appropriate to a person skilled in the art.
  • FIG. 2 shows a sectional view through the handheld power tool 64 along the line II-II from FIG. 1.
  • the electric motor unit 68 arranged in the handheld power tool housing 66 comprises an output shaft 88, which is mounted in the handheld power tool housing 66 by means of a ball bearing 90 of the gear unit 70.
  • an eccentric sleeve 92 of the gear unit 70 is pressed, which comprises a to a rotational axis 94 of the output shaft 88 eccentrically arranged pin 96.
  • the pin 96 is connected via a further ball bearing 98 of the gear unit 70 with a rocker 100 of the gear unit 70, which is rotatably connected to an outer ring of the other ball bearing 98.
  • the rocker 100 is connected to an oscillating sleeve 102 of the gear unit 70 arranged on the hollow spindle 80.
  • an oscillating pivoting movement of the hollow spindle 80 about the rotational axis 78 of the hollow spindle 80 is generated by an interaction of the eccentric sleeve 92, the rocker 100 and the oscillating sleeve 102.
  • the machining tool 16 can also be driven in an oscillating manner.
  • the hollow spindle 80 is supported in this case by a movable bearing designed as a needle bearing 104 of the output unit 72 and a bearing constructed as a ball bearing 106 of the output unit 72 fixed bearing in the power tool housing 66.
  • the machining tool 16 For rotationally fixed attachment of the machining tool 16, the machining tool 16 driving recesses 108 which are arranged distributed in a circular ring along a circumferential direction 110 evenly on the machining tool 16.
  • the tool receptacle 84 has hump-like elevations 112 corresponding to the entrainment recesses 108, which extend in an assembled state of the machining tool 16 on the tool receptacle 84 along the axial direction 20 through the entrainment recesses 108.
  • the hump-like elevations 112 are formed here as locking cams 114.
  • the handheld power tool 64 comprises the handheld power tool clamping device 10, which has a clamping unit 12 and an operating unit 116.
  • the operating unit 116 comprises, for actuating the clamping unit 12, an operating lever 118, which is mounted rotatably about a rotation axis 120 extending coaxially to the axis of rotation 78 of the hollow spindle 80.
  • the clamping unit 12 has a rotatably mounted about the rotational axis 120 first bolt-shaped clamping element 14.
  • the bolt-shaped clamping element 14 is provided to clamp the machining tool 16 on the hollow spindle 80 designed as a spindle 18 in the axial direction 20.
  • the clamping unit 12 has a rotatably mounted about the rotation axis 120 second clamping element 122 which is formed as a spindle nut 124.
  • the spindle nut 124 is rotatably mounted on a side facing away from the tool holder 84 in the power tool housing 66.
  • the first clamping element 14 is formed as a threaded bolt 126.
  • the threaded bolt 126 has a shaft 128 and an actuating element 130.
  • the shaft 128 extends in an assembled state along the axial direction 20 through the hollow spindle 80 and engages with an external thread 132 of the shaft 128 in an internal thread 134 of the spindle nut 124 a.
  • the actuator 130 is rotatably connected to the shaft 128. Furthermore, the actuating element 130 is formed integrally with the shaft 128. However, it is also conceivable that the
  • Actuator 130 by means of a positive and / or a force a positive connection rotatably connected to the shaft 128 is connected.
  • An operator can screw the threaded bolt 126 into the spindle nut 124 by means of the actuating element 130.
  • an operator can operate the clamping unit 12 by means of the operating lever 118.
  • a clamping force is generated, which axially secures the machining tool 16 in an operation of the portable power tool 64, so that the machining tool 16 can be driven to oscillate as a result of the connection with the tool holder 84.
  • the clamping unit 12 has an anti-rotation unit 22, which is intended to secure the clamping element 14 of the clamping unit 12 formed as a threaded bolt 126 during a clamping operation and / or a release operation against rotation.
  • FIG. 3 shows the rotation-preventing unit 22 of the portable power tool clamping device 10.
  • the rotation-preventing unit 22 is designed as a jaw coupling unit 24.
  • the jaw coupling unit 24 has an annular-shaped jaw coupling member 26, which is arranged on the clamping bolt 14 designed as a threaded bolt 126.
  • the clamping element 14 has a clamping surface 28, to which the jaw coupling member 26 of the claw coupling unit 24 is arranged adjacent.
  • the jaw coupling member 26 is disposed adjacent to the clamping surface 28 along a direction perpendicular to the axial direction 20.
  • the jaw clutch member 26 is formed integrally with the operating member 130.
  • the clamping surface 28 is formed by a surface of the actuating element 130 facing the tool holder 84 in an assembled state of the threaded bolt 126.
  • the clamping surface 28 is in a clamped state of the machining tool 16 on a side facing away from the tool holder 84 82 of the machining tool 16 on the machining tool 16 at.
  • the jaw coupling member 26 has six sawtooth-like anti-rotation locking elements 30, 32, 34, 138, 140 (five anti-rotation elements can be seen in FIG. 3) which extend substantially perpendicular to the clamping surface 28 of the clamping element 14.
  • the anti-rotation elements 30, 32, 34, 138, 140 have another form which appears expedient to a person skilled in the art.
  • the anti-rotation elements 30, 32, 34, 138, 140 have another form which appears expedient to a person skilled in the art.
  • the anti-rotation elements 30, 32, 34, 138, 140 have another form which appears expedient to a person skilled in the art.
  • the anti-rotation elements 30, 32, 34, 138, 140 have another form which appears expedient to a person skilled in the art.
  • Jaw coupling member 26 one of six different number of Vermossiche- has elements 30, 32, 34, 138, 140.
  • a person skilled in the art will select a suitable number of anti-rotation elements 30, 32, 34, 138, 140 depending on an application of the hand tool clamping device 10.
  • the anti-rotation elements 30, 32, 34, 138, 140 of the clamping element 14 arranged on the jaw coupling member 26 extend in a mounted
  • the jaw coupling unit 24 also has a further jaw coupling member 36, which is arranged on a rotational drive element 38 of the clamping unit 12, which is intended to rotatably couple the machining tool 16 with the spindle 18 ( Figure 4).
  • the rotational drive element 38 is formed here by the tool holder 84.
  • the tool holder 84 is formed here as a sintered molded part. However, it is also conceivable that the tool holder 84 would be made of another, which would appear appropriate to a person skilled in the art
  • the tool holder 84 has a further clamping surface 86 which is formed by a, in an assembled state of the machining tool 16, the machining tool 16 facing surface of the tool holder 84.
  • the further clamping surface 86 is in a clamped state of the machining tool 16 on one of the tool holder 84 facing side 136 of the machining tool 16 on the machining tool 16 at.
  • the arranged on the tool holder 84 further jaw coupling member 36 is annular.
  • the further jaw coupling element 36 arranged on the tool holder 84 has six sawtooth-like anti-rotation elements 40, 42, 44, 46, 48, 50.
  • the anti-rotation elements 40, 42, 44, 46, 48, 50 have another form that appears appropriate to a person skilled in the art.
  • the further jaw coupling member 36 has one of six different number of anti-rotation elements 40, 42, 44, 46, 48, 50. A person skilled in the art will select a suitable number of anti-rotation elements 40, 42, 44, 46, 48, 50 depending on an application of the hand tool clamping device 10.
  • the anti-rotation elements 40, 42, 44, 46, 48, 50 of the further jaw coupling member 36 are formed corresponding to the anti-rotation elements of the clamping element 14 arranged on the jaw coupling member 26.
  • two securing elements 40, 42, 44, 46, 48, 50 of the further coupling element 36 which are arranged one behind the other along the circumferential direction 110, delimit a recess 52, 54, 56, 58, 60, 62 which is provided for receiving an anti-rotation element 30, 32 , 34, 138, 140 of the am
  • Clamping element 14 arranged jaw clutch member 26 is provided.
  • six recesses 52, 54, 56, 58, 60, 62 are formed (five Ausneh- mugnen seen in Figure 4), which are provided in an assembled state of the clamping element 14, the six anti-rotation elements 30, 32, 34, 138th , 140 of the clamping element 14 arranged on the jaw clutch member 26 record.
  • the anti-rotation elements 40, 42 extend,
  • the anti-rotation elements 40, 42, 44, 46, 48, 50 are furthermore arranged on the rotary driving element 38 Claw coupling member 36 extending from a parallel to the further clamping surface 86 of the tool holder 84 extending plane in the direction of the further clamping surface 86.
  • the parallel to the further clamping surface 86 extending plane is in this case, viewed along the axial direction 20 in a direction away from the clamping element 14, parallel arranged offset to the further clamping surface 86.
  • the spindle nut 124 is rotatably mounted in the power tool housing 66.
  • the spindle nut 124 is rotated about the axis of rotation 78 due to the applied torque.
  • the clamping element 14 is in this case by means of the engagement of the anti-rotation elements 30, 32, 34, 138, 140 of the jaw coupling member 26 disposed on the clamping element 14 in which by the anti-rotation elements 40, 42, 44, 46, 48, 50 further arranged on the rotary driving element 38 jaw coupling member 36th limited recesses 52, 54, 56, 58, 60, 62 prevented from twisting.
  • the tool holder 84 is prevented by the rotationally fixed connection with the hollow spindle 80 from rotating about the rotation axis 78.
  • the hollow spindle 80 is supported here via the gear unit 70.
  • the power tool clamping device 10 has an additional gear and / or a blocking device which is and / or which is intended to support the tool holder 84 for generating a necessary counter-torque.
  • the clamping element 14 is thus moved along the axial direction 20 as a result of the interaction of the internal thread 134 of the spindle nut 126 and the external thread 132 of the shaft 128.
  • a clamping force is generated, which axially secures the machining tool 16 in an operation of the portable power tool 64, so that the machining tool 16 can be driven to oscillate as a result of the connection with the tool holder 84.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

L'invention concerne un dispositif de serrage de machine-outil à main, notamment un dispositif de serrage de machine-outil à main oscillante, comportant au moins une unité de serrage (12) présentant au moins un élément de serrage (14) en forme d'axe pour serrer un outil de travail (16) sur une broche (18) dans une direction axiale (20). Selon l'invention, au moins une unité de sécurité anti-rotation (22) est prévue pour sécuriser contre la rotation au moins l'élément de serrage (14) de l'unité de serrage (12) au cours d'un processus de serrage et/ou d'un processus de desserrage.
PCT/EP2011/073899 2010-12-30 2011-12-23 Dispositif de serrage de machine-outil à main Ceased WO2012089637A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010064363.7 2010-12-30
DE102010064363.7A DE102010064363B4 (de) 2010-12-30 2010-12-30 Handwerkzeugmaschinenspannvorrichtung mit Verdrehsicherung

Publications (2)

Publication Number Publication Date
WO2012089637A2 true WO2012089637A2 (fr) 2012-07-05
WO2012089637A3 WO2012089637A3 (fr) 2012-09-07

Family

ID=45420664

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Application Number Title Priority Date Filing Date
PCT/EP2011/073899 Ceased WO2012089637A2 (fr) 2010-12-30 2011-12-23 Dispositif de serrage de machine-outil à main

Country Status (2)

Country Link
DE (1) DE102010064363B4 (fr)
WO (1) WO2012089637A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12179309B2 (en) 2021-03-18 2024-12-31 Techtronic Cordless Gp Mandrel and accessory for rotary tool
USD1102495S1 (en) 2022-03-16 2025-11-18 Techtronic Cordless Gp Mandrel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114905465B (zh) * 2021-02-10 2023-09-12 苏州宝时得电动工具有限公司 紧固机构及动力工具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816398A1 (de) 1978-04-15 1979-10-25 Licentia Gmbh Winkelschleifer mit einer spannvorrichtung fuer die schleifscheibe in form eines spann- und druckflansches
DE3741484C1 (de) * 1987-12-08 1989-08-24 Fein C & E Handwerkzeugmaschine mit automatischer Arretierung der Arbeitsspindel
DE4336620C2 (de) * 1993-10-27 1997-07-03 Fein C & E Elektrowerkzeug mit einer nur bei ausgeschaltetem Motor betätigbaren Spannvorrichtung
DE19547332A1 (de) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Elektrohandwerkzeugmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12179309B2 (en) 2021-03-18 2024-12-31 Techtronic Cordless Gp Mandrel and accessory for rotary tool
USD1102495S1 (en) 2022-03-16 2025-11-18 Techtronic Cordless Gp Mandrel

Also Published As

Publication number Publication date
DE102010064363B4 (de) 2021-12-16
WO2012089637A3 (fr) 2012-09-07
DE102010064363A1 (de) 2012-07-05

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