EP2307172B1 - Dispositif de percussion - Google Patents

Dispositif de percussion Download PDF

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Publication number
EP2307172B1
EP2307172B1 EP09779566.0A EP09779566A EP2307172B1 EP 2307172 B1 EP2307172 B1 EP 2307172B1 EP 09779566 A EP09779566 A EP 09779566A EP 2307172 B1 EP2307172 B1 EP 2307172B1
Authority
EP
European Patent Office
Prior art keywords
unit
piston
transmission element
transmission
bearing
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.)
Not-in-force
Application number
EP09779566.0A
Other languages
German (de)
English (en)
Other versions
EP2307172A1 (fr
Inventor
Thomas Bernhardt
Tobias Herr
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 EP2307172A1 publication Critical patent/EP2307172A1/fr
Application granted granted Critical
Publication of EP2307172B1 publication Critical patent/EP2307172B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
    • 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
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons

Definitions

  • the invention relates to a percussion device according to the preamble of claim 1.
  • Such a percussion device is from the US R E35 372 E known.
  • the impact device comprises a percussion unit having a piston unit, a transmission unit having a swash bearing, which is provided for transmitting a movement to the percussion unit, and a transmission element between the transmission unit and the piston unit.
  • the invention is described in claim 1.
  • Advantageous embodiments are described in the subclaims.
  • the invention relates to a percussion device according to the preamble of claim 1, in particular for a drill and / or chipping hammer, with a percussion unit having a piston unit, a transmission unit which has a swash bearing and which results in a transmission of a movement to the percussion unit and a transmission element between the transmission unit and the piston unit, wherein the transmission element has a force flow direction with a component which is opposite to a direction of force flow of the wobble arm.
  • "intended” should be understood to mean in particular specially designed and / or specially equipped.
  • a percussion unit in particular a Unit are understood, which is provided in the operation of the power tool to generate a shock pulse and to transfer the impact pulse to a tool.
  • the piston unit may be formed both by a piston alone, such as a pot piston, and by a plurality of components, such as a hammer piston, a connecting rod and / or another, the skilled person appear useful as an element.
  • between is meant in particular an arrangement, in particular of the transmission element, along a force flow direction between two components, in particular between the transmission unit and the piston unit.
  • a "force flow direction” should be understood to mean, in particular, a direction of a force flow, in particular of a main force flow, by a component and / or an element during operation of the impact device, wherein a "force flow” is in particular a path of a force and / or a moment in one Component, in particular in the transmission element, from a point of application or a point of introduction of force to an exit point or up to a point at which the force and / or the moment is absorbed by a reaction force and / or reaction moment to be understood ,
  • the transmission element may be formed as a separate component or be comprised by the piston unit and / or by the transmission unit.
  • a one-piece design of the transmission element with the piston unit and / or the transmission unit is conceivable, which is to be understood as “one piece” in particular in one piece and / or formed from a Gus and / or designed as a component.
  • a "component parallel to a direction of force flow” should be understood in particular to mean that the direction of force flow of the transmission element has a component of non-zero parallel to the direction of force flow of the wobble leg. It can be built by the inventive design, a particularly space-saving and compact impact device or hand tool, and in particular by a lever length of the wobble leg can be advantageously extended constructively simple up to a desired stroke of the piston and a force by means of the transmission element advantageous to the piston unit is transferable.
  • the transmission unit has at least one bearing element.
  • the power flow direction of the transmission element extends from outside to inside along a radial direction of the piston unit.
  • a "radial direction” should be understood to mean, in particular, a direction which extends radially outwardly and / or inwardly along a cross-sectional area of the piston unit viewed from a central axis of the piston unit. It can be advantageously saved space by the at least one wobble legs on the piston unit, in particular on a piston of the piston unit, can be passed.
  • the transmission element has a contact point with the transmission unit, which is arranged on a side facing away from the swash bearing of the transmission unit side of the piston unit.
  • a "side of the piston applied to the swash bearing” should be understood to mean, in particular, a side and / or a region of the piston which, at least partially, faces the piston away from a swash-bearing in a direction away from a center axis of the piston is.
  • an "attachment point” should be understood to mean, in particular, a point and / or a point which is provided for transmitting a movement and / or a force flow between the transfer unit and the transfer element and / or the piston unit, wherein during operation of the impact device Investment point can move relative to the central axis of the piston due to a wobbling movement of the transmission unit. Due to the inventive design can be a great leverage in the transmission of a drive movement and thus a large piston stroke and a high impact speed during operation of the drill and / or chisel, especially at a constant or almost constant center distance between the piston and a rotation axis of a Intermediate shaft or a swash bearing can be achieved.
  • an angular range covered by the moving wobble limb during operation of the wobble bearing to achieve a desired stroke movement of a piston can be reduced and thus a possible imbalance during operation of the handheld power tool can at least be reduced or prevented.
  • assembly of the piston unit can be simplified by the position of the transmission bolt or incorrect assembly of the piston unit can be prevented.
  • an "inner cross-section” is to be understood in particular a cross-sectional area and / or a diameter which extends and / or within a wall, in particular a cylindrical wall, of the piston, in particular a pot piston, in particular transversely to a main direction of extension of the piston and the and / or is bounded by an inwardly facing side of the wall.
  • This embodiment particularly advantageously enables a compact and in particular short-built impact device or hand tool machine.
  • an "outer cross-section" is to be understood in particular a cross-sectional area and / or a diameter which is bounded by an outwardly facing surface of a wall, in particular a cylindrical wall, of the piston, in particular of a pot piston, and / or. or extending inwardly from the outwardly facing surface of the wall, in particular transverse to a main direction of extension of the piston.
  • a particularly advantageous and in particular structurally simple bridging a variable in operation of the drill and / or chisel hammer height difference between the piston, in particular a side facing away from the swash bearing of the piston, and the transmission unit, in particular a bearing point on a side facing away from the swash bearing end of a Taumelschenkels, can be achieved when the transmission element is mounted at least partially movable on the transmission unit.
  • the transmission unit particularly advantageously has at least one bearing and / or guide means for movably supporting and / or guiding the transmission element.
  • a particularly short length of the impact device and thus of the power tool can be advantageously achieved if the transmission unit has at least one wobble leg, which is guided along an axial extension of the piston unit adjacent to the piston unit.
  • wobble leg is meant in particular that a shortest distance between the wobble leg and the piston unit is aligned perpendicular to a main extension, along the axial extent, in particular a length of the piston unit, and preferably greater than a radius of a piston of the piston unit is.
  • the wobble legs can be designed in particular fixed and / or resilient with the swash bearing.
  • the transmission unit has at least two wobble legs, which are guided past an axial extent of the piston unit next to the piston unit.
  • an advantageous force distribution during operation of the impact device or of the drill and / or chisel hammer can be achieved during a power transmission from the transmission unit to the impact mechanism unit. It can be reduced in this case a point load of individual components and thus a lifetime of the individual components can be advantageously increased.
  • the bearing element may in this case be formed by a separate component or at least partially formed integrally with the piston unit or a component of the transmission unit.
  • the bearing element is provided for receiving translational and / or particularly advantageous for receiving rotational forces and in particular spatially and / or temporally oscillating forces.
  • the bearing element is preferably formed by a movably mounted bolt, a joint unit and / or further components that appear appropriate to a person skilled in the art, for example a bearing component.
  • the transmission element may be formed by a separate component or at least partially formed in one piece with the at least one wobble leg.
  • the bearing element together with the at least one wobble leg, span a plane which in at least one operating position of a piston of the piston unit with an almost complete, transversely to the axial direction of the piston unit cross-sectional area of the piston of the piston is pierced.
  • an "almost complete cross-sectional area” should be understood to mean that at least 83% of the cross-sectional area, preferably at least 94% and particularly preferably 100% of the cross-sectional area of the piston pierces the plane spanned by the at least one wobble leg together with the bearing element. It can be achieved structurally simple in this case a particularly space-saving arrangement of the impact device with a particular short length.
  • the bearing element is aligned substantially transversely to a main extension direction of the wobble leg.
  • substantially transversely is to be understood here in particular that the bearing element, in particular a main extension direction and / or a force flow direction of the bearing element, an angle to the main extension direction of the Taumelschenkels includes, which is between 70 ° and 110 °, advantageously between 75 ° and 105 ° and is more preferably between 83 ° and 97 °. Due to the configuration of the invention can advantageously be reduced stress on bearings and / or in particular inexpensive bearing components are used.
  • the transmission element can be at least partially bendable, in particular along its longitudinal extent be formed, as may be advantageous for example in a transmission unit with two wobble legs.
  • the impact device according to the invention in a hand tool in particular a drill and / or chisel, are used.
  • FIG. 1 an illustrated by a drill and / or chisel hammer 12 hand tool is shown.
  • the drill and / or chisel hammer 12 has a housing 58 and a tool holder 60 for receiving a drill and / or chisel tool 12, not shown.
  • On a side 62 facing away from the tool holder 60, the drill and / or chisel hammer 12 has a main handle 64 integrated in the housing 58.
  • the drill and / or chisel hammer 12 also comprises a percussion device 10, which includes a percussion unit 14, which is provided for generating and transmitting a shock pulse to the drilling and / or chisel tool, and a transmission unit 18, which provided for a transmission of a drive torque to the percussion unit 14 is.
  • the drive torque is generated by a motor unit 66 during operation of the drill and / or chisel hammer 12 and via an unspecified motor shaft of the motor unit 66 to an intermediate shaft 68 and from there via the transmission unit 18 to the percussion unit 14 and / or via a gear stage a rotating output means, such as the hammer tube 70, transferred to a rotation of the drilling and / or chiselling tool.
  • the transmission unit 18 has a wobble bearing 36 which is mounted on the intermediate shaft 68.
  • the percussion unit 14 has a piston unit 16 with a piston 48 formed by a pot piston, which is mounted axially movably in the hammer tube 70 of the percussion unit 14.
  • the percussion unit 14 or the piston unit 16 has a transmission element 24, via which a power transmission from the transmission unit 18 to the percussion unit 14 or to the piston unit 16 during operation of the drill and / or chisel hammer 12 takes place.
  • the transmission element 24 is arranged along a force flow between the transmission unit 18 and the piston 48 of the piston unit 16.
  • a force flow direction 26 of the transmission element 24 in this case has a component which is opposite to the directions of force flow 28, 30 of wobble legs 20, 22 of the transmission unit 18.
  • the transmission element 24 is disposed on a side of the piston 48 facing away from the swash bearing 36, wherein the transmission element 24 along a direction 72 from a rotation axis 74 of the intermediate shaft 68 (in the Figures 2 and 3 not shown) in the direction of a longitudinal axis or a central axis 76 of the piston unit 16 is oriented substantially parallel to the direction 72 and extends away from the piston 48.
  • the power flow direction 26 of the transmission element 24 in this case extends along a radial direction 32 of the piston unit 16 from outside to inside.
  • the transfer element 24 has with the transfer unit 18 a contact point 34 which is arranged on the side facing away from the swash bearing 36 side 38 of the piston unit, wherein the contact point 34 along the radial direction 32 outside an inner cross section 40 and also outside an outer cross section 42 of the piston 48 of Piston unit 16 is arranged.
  • the inner cross section 40 and the outer cross section 42 of the piston 48 are formed by a cylindrical Receiving area 78 of the piston 48 determines ( FIG. 2 ), wherein the inner cross section 40 of an inner diameter of a cylindrical wall 80 and the outer cross section 42 are formed by an outer diameter of the cylindrical wall 80 of the cylindrical receiving portion 78 of the piston 48.
  • the cylindrical receiving portion 78 is provided for receiving a racket and a compression means formed by air.
  • the transmission element 24 is arranged and fixedly connected to the piston 48, wherein the transmission element 24 is screwed to the fastening element (see. FIG. 3 ).
  • the transmission element 24 is integrally formed with the fastening element 84, is pressed with the fastening element 84 and / or by means of a further, the skilled person seems appropriate sense of attachment to the fastener 84 is arranged.
  • the transmission unit 18 has the two wobble legs 20, 22, which are at least partially formed integrally with the swash bearing 36.
  • the swash bearing 36 has a ball bearing and is provided for converting a rotational movement of the intermediate shaft 68 into an axial movement of the piston 48.
  • the two wobble legs 20, 22 extend from the wobble bearing 36 viewed from the rotation axis 74 of the intermediate shaft 68 in the direction 72 of the piston 48, the wobble legs 20, 22 extending substantially perpendicular to an axis 86 of an outer ring 88 of the wobble bearing 36.
  • the two wobble legs 20, 22 are also arranged along a circumferential direction 90 of the outer ring 88 on two opposite sides 92 on the outer ring 88 and formed integrally therewith.
  • the two wobble legs 20, 22 are guided laterally next to the piston 48, wherein in this case a main extension direction 54, 56 of the wobble legs 20, 22 skewed to the central axis 76 of the piston 48 ( FIG. 3 ).
  • the transmission unit 18 also has a bearing element 46, which is aligned substantially transversely to a main extension direction 54, 56 of the wobble legs 20, 22.
  • the bearing element 46 is bolt-shaped and forms, together with the two wobble legs 20, 22, two bearing points 94, 96.
  • the two wobble legs 20, 22 on an end 98, 100 facing away from the swash bearing 36 each have an integrally formed with the wobble legs 20, 22 annular bearing receptacle 102, 104, in which the bearing element 46 is rotatably mounted about a longitudinal axis 106 of the bearing member 46 ,
  • the bearing element 46 has in a central region 108 along its longitudinal axis 106, a bore 110, which is aligned substantially transverse to the longitudinal axis 106.
  • the transmission element 24 is movably mounted on the transmission unit 18, so that the contact point 34 is arranged for transmitting power between the transmission unit 18 and the piston unit 16 or the piston 48 between the bearing element 46 and the transmission element 24 ( FIG. 3 ).
  • the transmission bolt 24 is aligned in at least one operating position substantially parallel to a main extension direction 54, 56 of a wobble limb 20, 22 of the transmission unit 18, whereby the force flow direction 26 of the transmission element 24 of the force flow direction 28, 30 of one of the two wobble limbs 20, 22 is opposite ,
  • the piston 48 driven by the transfer unit 18, moves periodically from a first end position facing the tool holder 60 into a second end position facing away from the tool holder 60 and back again.
  • the first end position are both wobble legs 20, 22 in a tool holder 60 facing, the first end position.
  • the two wobble legs 20, 22 are sequentially moved out of their first end position in a transition from the first end position to the second end position, so that the wobble legs 20, 22 along an axial direction 50 of the piston 48 are at different positions. This has the consequence that also the bearing element 46 is rotated relative to the transmission element 24 about a longitudinal axis 112 of the transmission element 24.
  • the two ends 98, 100 of the wobble legs 20, 22 facing away from the swash bearing 36 describe a movement along a circular arc, so that the movable mounting of the transmission element 24 causes a varying height difference between the piston 48 and the transmission element 24 and also a varying orientation Tumble legs 20, 22 are balanced with respect to the central axis 76 during a power transmission.
  • Only in the second end position of the piston 48 are the two wobble legs 20, 22 again along the axial direction 50 of the piston 48 in a common end position. A transition from the second end position to the first end position of the piston 48 is analogous to the transition of the first to the second end position.
  • the bearing element 46 clamps with at least one of the two wobble limbs 20, 22 a plane which is pierced in the operating position formed by the second end position during operation of the drill and / or chisel hammer 12 by the piston 48 with an almost complete cross-sectional area 52.
  • FIGS. 4 to 6 a preferred embodiment of erfindungsgze H impact device is shown.
  • Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the examples is in the reference numerals of FIGS. 4 to 6 the letter a added. The following description is essentially limited to the differences from Example 1 in FIG. 3 , wherein with respect to the same components, features and functions on the description of the example in the FIG. 3 can be referenced.
  • FIG. 4 a preferred embodiment of erfindungsgze H impact device 10a is shown.
  • a transmission unit 18a and a percussion unit 14a of the impact device 10a are shown in a first end position (shown in dashed lines) and in a second end position, wherein a piston 48a of a piston unit 16a of the percussion unit 14a is mounted in a hammer tube 70a.
  • the transmission unit 18a has two wobble legs 20a, 22a and a wobble bearing 36a.
  • the impact device 10a also has a transmission element 24a, which in use has a force flow direction 26a with a component which is opposite to a force flow direction 28a of the wobble limbs 20a, 22a.
  • the transmission element 24a is also arranged on a side facing away from the swash bearing 36a side 38a of the piston unit 16a and the piston 48a.
  • the transmission element 24a is arranged on the piston 48a at a fastening sleeve 130a arranged on a side facing away from a cylindrical receiving region 78a along an axial direction 50a of the piston unit 16a or the piston 48a.
  • the transmission element 24a is also screwed to the mounting sleeve 130a by means of a screw 132a.
  • the transmission element 24a has a stepped shape, wherein a step 134a of the transmission element 24a is arranged between a first partial region 136a arranged in the fastening sleeve 130a and a second partial region 138a of the transmission element 24a extending away from the piston 48a in the radial direction 32a is.
  • the two sections 136a, 138a are aligned parallel to each other and perpendicular to the axial direction 50a of the piston unit 16a.
  • a central portion 140a of the transmission element 24a is oriented substantially perpendicular to the first and the second partial regions 136a, 138a and extends on a radially outwardly directed wall 80a of the piston 48a in the direction of the receiving region 78a on the piston 48a (FIG. FIG. 5 ).
  • the transmission unit 18a has a bearing element 46a, on which the transmission element 24a is movably mounted, wherein the bearing element 46a is at least partially around the Longitudinal axis 106a of the transmission element 24a is rotatably arranged.
  • the bearing member 46a is formed by a hinge unit formed as a ball joint unit 114a.
  • the ball joint unit 114a has an outer joint ring ball 116a, an inner joint ring ball 118a, and a slip ring 120a disposed between the outer joint ring ball 116a and the inner joint ring ball 118a ( FIG. 5 ).
  • the sliding ring 120a could also be formed integrally with the outer joint ring ball 116a.
  • the outer joint ring ball 116a of the ball joint unit 114a is formed integrally with the two wobble legs 20a, 22a, wherein the outer joint ring ball 116a is disposed between the two wobble legs 20a, 22a on the swash bearing 36a opposite ends 98a, 100a of the two wobble legs 20a, 22a.
  • the two wobble legs 20a, 22a are bent at the ends 98a, 100a facing away from the wobble bearing 36a, the ends 98a, 100a of the two wobble legs 20a, 22a converging toward one another ( FIG. 5 ).
  • the inner hinge ring ball 118a is fixed to the transmission element 24a by pressing the inner hinge ring ball 118a with the transmission element 24a.
  • the inner joint ring ball 118a is thereby arranged against rotation on the transmission element 24a, so that a relative movement between the transmission element 24a and the inner joint ring ball 118a is prevented.
  • a relative movement between the transmission element 24a and the ball joint unit 114a takes place during operation of the impact device 10a or of the rotary and / or chipping hammer here between the outer joint ring ball 116a and the inner joint ring ball 118a via the sliding ring 120a (FIG. FIG. 5 ).
  • the impact device 10a also has a guide rail 122a (FIG. FIGS. 4 and 5 ).
  • the transmission element 24a is arranged in the guide rail 122a with an end region 124a facing away from the piston 48a.
  • the guide rail 122a is arranged on a housing, not shown, of the drill and / or chisel hammer.
  • the transmission element 24a has a sliding element 126a.
  • the sliding element 126a is cup-shaped and arranged on the end region 124a of the transmission element 24a around the transmission element 24a.
  • the transmission element 24a has a bore 128a extending along its longitudinal extension 112a for a weight reduction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (10)

  1. Dispositif de percussion (10a), en particulier pour un marteau perforateur et/ou un marteaupiqueur (12), comprenant une unité de percussion (14a), qui présente une unité de piston (16a), une unité de transfert (18a), qui présente au moins une branche oscillante (20a, 22a) et qui est prévue pour transférer un mouvement à l'unité de percussion (14a), et un élément de transfert (24a) entre l'unité de transfert (18a) et l'unité de piston (16a), l'élément de transfert (24a) présentant une direction de flux de force (26a) avec une composante qui est opposée à une direction de flux de force (30a) de la branche oscillante (20a, 22a), caractérisé en ce que l'unité de transfert (18a) présente un élément de palier (46a) disposé de manière à pouvoir tourner au moins en partie autour d'un axe longitudinal (106a) de l'élément de transfert (24a), au niveau duquel l'élément de transfert (24a) est supporté de manière déplaçable, l'élément de transfert (24a) étant guidé dans un rail de guidage (122a) du dispositif de percussion (10a) dans une direction axiale (50a).
  2. Dispositif de percussion (10a) selon la revendication 1, caractérisé en ce que l'élément de transfert (24a) est disposé de manière guidée dans le rail de guidage (122a) avec une région d'extrémité (124a) opposée à un piston (48a) de l'unité de piston (16a).
  3. Dispositif de percussion (10a) selon l'une quelconque des revendications précédentes, caractérisé en ce que le rail de guidage (122a) est disposé au niveau d'un boîtier du marteau perforateur et/ou du marteau-piqueur.
  4. Dispositif de percussion (10a) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de transfert (24a) présente un élément de glissement (126a) réalisé en forme de pot, qui est disposé autour de l'élément de transfert (24a) au niveau d'une région d'extrémité (124a) de l'élément de transfert (24a).
  5. Dispositif de percussion (10a) selon la revendication 1, caractérisé en ce que l'élément de palier (46a) est formé par une unité d'articulation à rotule (114a).
  6. Dispositif de percussion (10a) selon la revendication 5, caractérisé en ce que l'unité d'articulation à rotule (114a) présente une rotule d'articulation annulaire extérieure (116a), une rotule d'articulation annulaire intérieure (118a) et une bague de glissement (120a).
  7. Dispositif de percussion (10a) selon la revendication 6, caractérisé en ce que la bague de glissement (120a) est disposée entre la rotule d'articulation annulaire extérieure (116a) et la rotule d'articulation annulaire intérieure (118a).
  8. Dispositif de percussion (10a) selon la revendication 6, caractérisé en ce que la bague de glissement (120a) est réalisée d'une seule pièce avec la rotule d'articulation annulaire extérieure (116a).
  9. Dispositif de percussion (10a) selon l'une quelconque des revendications précédentes 6 à 8, caractérisé en ce que la rotule d'articulation annulaire extérieure (116a) de l'unité d'articulation à rotule (114a) est réalisée d'une seule pièce avec les deux branches oscillantes (20a, 22a) et est disposée entre les deux branches oscillantes (20a, 22a) au niveau d'extrémités (98a, 100a) des deux branches oscillantes (20a, 22a) opposées au du palier oscillant (36a).
  10. Dispositif de percussion (10a) selon l'une quelconque des revendications précédentes 6 à 9, caractérisé en ce que la rotule d'articulation annulaire (118a) est pressée avec l'élément de transfert (24a).
EP09779566.0A 2008-07-28 2009-05-28 Dispositif de percussion Not-in-force EP2307172B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810040765 DE102008040765A1 (de) 2008-07-28 2008-07-28 Schlagvorrichtung
PCT/EP2009/056510 WO2010012520A1 (fr) 2008-07-28 2009-05-28 Dispositif de percussion

Publications (2)

Publication Number Publication Date
EP2307172A1 EP2307172A1 (fr) 2011-04-13
EP2307172B1 true EP2307172B1 (fr) 2016-12-21

Family

ID=40912038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09779566.0A Not-in-force EP2307172B1 (fr) 2008-07-28 2009-05-28 Dispositif de percussion

Country Status (5)

Country Link
EP (1) EP2307172B1 (fr)
CN (1) CN102105272B (fr)
DE (1) DE102008040765A1 (fr)
RU (1) RU2011107127A (fr)
WO (1) WO2010012520A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107627263B (zh) * 2017-09-30 2023-11-10 苏州宝时得电动工具有限公司 电锤

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438208A1 (de) * 1984-10-18 1986-04-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Handgefuehrte hammerbohrmaschine mit gegen verdrehen gesichertem antriebsglied
USRE35372E (en) * 1988-06-07 1996-11-05 S-B Power Tool Company Apparatus for driving a drilling or percussion tool
DE4207295A1 (de) * 1992-03-07 1993-09-09 Black & Decker Inc Bohrhammer
DE4441820B4 (de) * 1994-11-24 2004-10-28 Robert Bosch Gmbh Bohr- und/oder Schlaghammer
DE19540391A1 (de) * 1995-10-30 1997-05-07 Hilti Ag Bohr- und Meisselgerät
DE19856638A1 (de) * 1998-12-03 2000-06-08 Black & Decker Inc Antrieb für ein Elektrowerkzeug, insbesondere einen Bohrhammer, sowie Bohrhammer
GB2394437A (en) * 2002-10-23 2004-04-28 Black & Decker Inc Hammer including a piston with wear-reducing washers
CN201009226Y (zh) * 2006-07-28 2008-01-23 苏州宝时得电动工具有限公司 电锤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2010012520A1 (fr) 2010-02-04
DE102008040765A1 (de) 2010-02-04
EP2307172A1 (fr) 2011-04-13
RU2011107127A (ru) 2012-09-10
CN102105272B (zh) 2014-10-29
CN102105272A (zh) 2011-06-22

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