EP2512750B1 - Machine-outil à main comportant un dispositif d'amortissement des vibrations - Google Patents

Machine-outil à main comportant un dispositif d'amortissement des vibrations Download PDF

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Publication number
EP2512750B1
EP2512750B1 EP10778895.2A EP10778895A EP2512750B1 EP 2512750 B1 EP2512750 B1 EP 2512750B1 EP 10778895 A EP10778895 A EP 10778895A EP 2512750 B1 EP2512750 B1 EP 2512750B1
Authority
EP
European Patent Office
Prior art keywords
spring
housing
schwingungstilgervorrichtung
force
absorber mass
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.)
Active
Application number
EP10778895.2A
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German (de)
English (en)
Other versions
EP2512750A1 (fr
Inventor
Axel Kuhnle
Matthias Tauber
Juergen Bochert
Carsten Diem
Willy Braun
Christian Wiedemann
Joerg Kaiser
Patrick Heinen
Roger Hahn
Thomas Speda
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2512750A1 publication Critical patent/EP2512750A1/fr
Application granted granted Critical
Publication of EP2512750B1 publication Critical patent/EP2512750B1/fr
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Anticipated expiration legal-status Critical

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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
    • B25F5/006—Vibration damping means
    • 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
    • B25D17/24—Damping the reaction force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0073—Arrangements for damping of the reaction force
    • B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
    • B25D2217/0092—Arrangements for damping of the reaction force by use of counterweights being spring-mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/121—Housing details

Definitions

  • the invention relates to a Schwingungstilgervorides a hand tool according to the preamble of claim 1.
  • a hand tool machine with a housing and a vibration absorber device is known.
  • the vibration absorber device comprises damper dampers and a damper mass.
  • the damper dampers fix the absorber mass directly in the housing.
  • the vibration absorber device comprises two idler springs, an absorber mass and a holding part.
  • the holding part partially encloses the absorber mass.
  • a hand tool machine having a mechanism housing and a vibration absorber device is known.
  • the vibration absorber device comprises two damper dampers, a damper mass and a holding part.
  • the holding part encloses the absorber mass.
  • the invention relates to a hand tool with at least one Schwingungstilgervoriques having at least one Tilgerfeder, a Tilgermasse and a mechanical housing.
  • the Schwingungstilgervorieri has at least two holding parts, which at least partially enclose the absorber mass.
  • a "hand tool machine” is understood to mean all hand tool machines that appear to be appropriate to the person skilled in the art, in particular impact drills, demolition hammers, rotary hammers, impact hammers, impact drills and / or advantageous drills and / or chisel hammers.
  • a "Schwingungstilgervortechnisch” is to be understood in particular a device which generates in at least one operating state, a force on a hand tool housing and / or a mechanical housing and in particular on at least one handle of the power tool, which counteracts a vibration, in particular of the power tool housing.
  • the Schwingungstilgervoriques allows an advantageous low-vibration operation of the power tool.
  • the Schwingungstilgervorraum works passively, that is energy-free except for the vibration energy.
  • the term "absorber spring” should be understood to mean a spring which is intended to transmit a force, in particular directly, to the absorber mass, which accelerates and / or delays the absorber mass.
  • the Tilgerfeder is designed as a helical compression spring.
  • the Tilgerfeder could have a rectangular cross-section perpendicular to a spring direction or could be a plurality of Tilgerfedern nested and / or arranged coaxially.
  • the Tilgerfeder could be designed as another, the expert appears useful sense torsional, bending, tensile and / or gas spring.
  • a "spring direction” is to be understood in particular at least one direction in which the Tilgerfeder must be charged in order to store the most energy elastic.
  • the Tilgerfeder is formed in the spring direction by at least 25% of a length in the unloaded state elastically deformable.
  • a "damping mass” is to be understood in particular as a unit which is intended to reduce the vibration, in particular of the handheld power tool housing, by inertia by means of an acceleration force and / or a deceleration force, advantageously by being displaced by a phase angle to the handheld power tool housing.
  • a “holding part” is to be understood in particular an element of the Schwingungstilgervoruze, which is immovably connected to the housing cover in a mounted operating state, relative to the housing cover.
  • the holding part has a fastening means which fixes the Schwingungstilgervortechnisch and in particular the Tilgerfeder directly to the mechanism housing.
  • the holding part and the Tilgerfeder are directly connected.
  • the holding part is a component formed by the mechanism housing and advantageously by a housing cover.
  • the holding part additionally exerts a force on at least one element of a drive mechanism.
  • a “fastening means” is to be understood in particular a means which is intended to effect a force on the Schwingungstilgervorplatz fixed immovably at least one element of the Schwingungstilgervoruze, preferably the holding part, relative to the mounted housing cover.
  • the fastening means is at least partially formed integrally with the housing cover.
  • the fastening means is designed as a groove, as part of a screw connection, as part of a latching connection and / or as part of another connection that appears appropriate to the person skilled in the art.
  • a “mechanical housing” should be understood in particular a housing in which at least the drive mechanism is arranged protected.
  • the mechanism housing is at least partially formed integrally with the power tool housing.
  • the mechanism housing is provided to divert bearing forces, at least the drive mechanism.
  • the term "enclose” is to be understood in particular that the holding parts surrounding at least one point of the absorber mass on a plane which is preferably aligned perpendicular to the spring direction by at least 180 degrees, preferably at least 270 degrees, particularly advantageously 360 degrees.
  • the design according to the invention makes it possible to constructively provide a particularly robust, compact and cost-effective handheld power tool, which enables a particularly low-vibration operation. In particular, this low leadership and low friction, and thus a low wear can be achieved.
  • At least the absorber spring in at least one operating state, a fastening force on the mechanism housing and in particular effected on a housing cover of the mechanical housing, whereby an assembly with a particularly low cost can be achieved.
  • a fastening force that the Tilgerfeder exerts the fastening force on the mechanism housing, which counteracts and advantageously prevents movement relative to the mechanism housing at least a portion of the Schwingungstilgervorides, in particular a movement of the holding parts.
  • the fastening force pushes the holding parts away from each other.
  • the holding parts are designed as identical parts, whereby constructive effort can be advantageously saved.
  • common parts is meant in particular components that have identical outer dimensions.
  • the identical parts are mirror images of each other.
  • the common parts could have an identical external appearance.
  • the holding parts are provided to guide the Tilgerfeder, whereby a particularly reliable operation and high maintainability can be achieved.
  • “lead” is to be understood in particular that the holding parts are provided to exert a bearing force perpendicular to the spring direction on the Tilgerfeder. Preferably, the force prevents substantial movement of the Tilgerfeder, which deviates from the spring direction.
  • the Schwingungstilgervor Vietnamese receptacle which is positively connected to the absorber mass, whereby structurally simple a particularly inexpensive, easy to maintain and space-saving connection is possible.
  • a "spring receptacle” is to be understood in particular an element of the Schwingungstilgervortechnisch, which is arranged in a power flow between the Tilgerfeder and the absorber mass.
  • the spring receptacle is mechanically firmly connected to the absorber mass.
  • the spring receiver is movable relative to the mechanism housing.
  • a “positive locking” is to be understood in particular a connection which transmits at least one surface a force in a direction of force having an average orientation substantially perpendicular to the direction of force. In this case, preferably prevents a spatial configuration of the spring seat and the absorber mass a movement of the spring receiver relative to the absorber mass.
  • the spring receiver and the absorber mass could be connected to one another in a force-locking, frictionally engaged or cohesive manner.
  • the handheld power tool has a mechanism housing with a housing cover which has a fastening means which at least partially fixes the vibration damping device in at least one operating state.
  • a “housing cover” is to be understood in particular an element of the mechanical housing, which is destructively formed by another element of the mechanical housing, in particular a housing shell, separable.
  • the Schwingungstilgervorides and the drive mechanism are arranged in a space which closes the housing cover. That is, the Schwingungstilgervorides is disposed on an inner side of the housing cover.
  • the space is designed as a grease space of the power tool.
  • the housing cover is provided to close a particular intended for mounting the drive mechanism opening in the other element of the mechanical housing.
  • the housing cover is free of bearing forces of the drive mechanism.
  • the housing cover transmits mainly forces of the Schwingungstilgervoriques and in particular forces acting from the outside on the bearing cap.
  • a "drive mechanism” is to be understood as a mechanism which converts a movement of a drive motor into a working movement, in particular a striking movement.
  • the term “closing” should be understood to mean that the housing cover covers an opening of the other element of the mechanical housing, in particular the housing shell, in an operational state. As a result, the housing cover protects the space from contamination, that is, it prevents dirt and in particular dust from penetrating through the opening to the drive mechanism.
  • the vibration damper device has at least one spring receptacle which exerts an acceleration force on the absorber mass in at least one operating state and in at least one operating state supports a force on the holding parts.
  • the Schwingungstilgervoriques has at least one spring receptacle which exerts an acceleration force on the absorber mass in at least one operating state and in at least one operating state, a counterforce of the acceleration force on the holding part is supported, whereby a particularly low space requirement and low cost can be achieved.
  • the spring receiver exerts the acceleration force at one time and supports the counterforce at a different time.
  • an "acceleration force” is to be understood as meaning a force that accelerates and / or delays the absorber mass.
  • a “counterforce” should be understood in particular a force that supports the Tilgerfeder on one side when another side of the Tilgerfeder exerts the acceleration force on the absorber mass.
  • the Schwingungstilgervoriques has at least one support member which presses the spring retainer against the Tilgerfeder in at least one operating state, whereby a particularly low design effort, an advantageous spring characteristic of the Schwingungstilgervor Vietnamese and an advantageous tolerance compensation can be achieved.
  • a "support element” is to be understood in particular to mean an element which, in at least one operating state, causes a force on the spring receptacle which counteracts a force which causes the absorber spring on the spring receptacle.
  • the support element is designed as a cylindrical compression spring, as an elastomeric part, as a shaft or plate spring and / or as another, the expert appears appropriate as an appropriate element.
  • the force of the support element on the spring receptacle in at least one operating state is significantly smaller than a force of the Tilgerfeder on the same spring retainer.
  • "significantly smaller” is to be understood as meaning, in particular, less than 50%, advantageously less than 25%, particularly advantageously less than 10%, of the force of the absorber spring.
  • the Tilgerfeder is disposed completely in an axial region of the absorber mass, whereby an advantageously small length in the spring direction can be achieved.
  • an area should be understood that is bounded by two planes that are aligned perpendicular to the spring direction and that intersect the absorber mass.
  • the housing cover and the Schwingungstilgervoriques form a preassembled module, whereby an advantageously low installation costs can be achieved.
  • the phrase "forming a preassembled assembly” is to be understood in particular that in a mounting, in particular before the housing cover is attached to the mechanism housing, the housing cover and the Schwingungstilgervorides are firmly connected to each other. Thereby, the housing cover and the Schwingungstilgervorides are connectable to a mountable unit.
  • the housing cover and the Schwingungstilgervorides are connected to each other so that they are mounted together.
  • the housing cover and the Schwingungstilgervorides are connected to each other so that they can transmit the acceleration force and / or a counter force of the acceleration force.
  • FIG. 1 shows a hand tool 10a according to the invention with a Schwingungstilgervoriques 12a, a drive mechanism 18a and with a mechanism housing 20a, which has a metallic housing cover 22a.
  • the hand tool 10a is designed as a drill and chisel hammer.
  • the mechanism housing 20a encloses a space 24a in which the drive mechanism 18a and the vibration absorber device 12a are arranged.
  • the hand tool 10a has a main handle 44a, an insert tool attachment 46a, a motor housing 48a, and an auxiliary handle 50a.
  • the main handle 44a is connected to the mechanical housing 20a and the motor housing 48a on a side of the mechanical housing 20a facing away from the tool attachment 46a.
  • the auxiliary handle 50a is connected to the mechanism housing 20a on a side facing the insert tool attachment 46a.
  • FIG. 2 shows a section through the mechanism housing 20a, which has a housing shell 52a next to the housing cover 22a.
  • the drive mechanism 18a has a striking mechanism 28a, a first and a second transmission element 54a, 56a for a drilling operation and a switching mechanism 58a.
  • the hammer mechanism 28a is designed as a hammer blower.
  • the first gear element 54a is additionally formed as an eccentric element of the percussion mechanism 28a.
  • the striking mechanism 28a has a piston 59a Hammer tube 60a and, not shown, a racket and an anvil on.
  • the second transmission element 56a rotatably drives the hammer tube 60a. The rotational movement of the hammer tube 60a can be switched off by the switching mechanism 58a in a manner which appears appropriate to a person skilled in the art.
  • the housing cover 22a of the mechanism housing 20a is arranged on a side of the housing shell 52a opposite the motor housing 48a. It closes a mounting opening located there and thus the space 24a.
  • the hand tool 10a has a seal, not shown, which is arranged between the housing cover 22a and the housing shell 52a. As a result, the vibration damper device 12a and the drive mechanism 18a are protected from contamination.
  • the space 24a is formed as a grease space, that is, in the space 24a, a common, permanent lubrication is ensured.
  • the Schwingungstilgervorides 12 a and the drive mechanism 18 a are arranged in the space 24 a, which closes the housing cover 22 a.
  • FIGS. 3 to 7 a non-inventive embodiment of a Schwingungstilgervortechnisch 12 a is shown.
  • the fastening means 26a are formed as integrally formed webs.
  • the fastening means 26a have fastening surfaces 62a aligned perpendicular to a spring direction 30a.
  • the fasteners 26a fasten in the spring direction 30a after assembly assembly, that is, after the vibration absorber 12a has been inserted in the lid, and during operation, the vibration absorber 12a in the spring direction 30a.
  • the Schwingungstilgervoretti 12a is compressed in the spring 30a and mounted in the housing cover 22a during assembly.
  • absorber springs 14a of the vibration damper device 12a cause a fastening force on the housing cover 22a by a biasing in the spring direction 30a after an assembly assembly and during operation.
  • the fastening force secures the Schwingungstilgervorides 12 a non-positively perpendicular to the spring direction 30 a on the housing cover 22 a.
  • the vibration absorber device 12a and the casing cover 22a form a preassemblable assembly, that is, the vibration absorber device 12a and the casing cover 22a together and separated from the casing shell 52a form a stable unit.
  • the housing cover 22a After mounting the housing cover 22a on the housing shell 52a causes the housing shell 52a in a non-illustrated area a fastening force on the Schwingungstilgervorides 12a.
  • the fastening force acts perpendicular to the spring direction 30a.
  • the Schwingungstilgervorides 12a could be locked to the housing cover 22a, screwed, glued and / or be connected to another, the expert appears reasonable sense manner.
  • the percussion mechanism 28a and the vibration absorber 12a are partially disposed on the same planes that are perpendicular to a spring direction 30a, that is, the percussion mechanism 28a and the vibration absorber device 12a are arranged partially adjacent to each other.
  • a region of the vibration damper device 12a facing the insert tool attachment 46a is arranged between the housing cover 22a and the striking mechanism 28a. This area is functional component-free except for the vibration absorber device 12a.
  • the Schwingungstilgervorides 12 a is mirror-symmetrical in a stationary state. It has the four Tilgerfedern 14 a, a damping mass 16 a, two holding parts 32 a two spring receptacles 36 a and two spring receiving fasteners 64 a.
  • the two holding parts 32a are formed as identical parts, that is, they have a same, but mirrored to each other shape. In addition, the holding parts 32a have a slight oversize relative to the housing cover 22a. Outer sides 66a of the holding parts 32a, which face the insert tool attachment, fix the vibration absorber device 12a in the housing cover 22a.
  • the Tilgerfedern 14 a, the absorber mass 16 a, the two spring receivers 36 a and the two spring receiving fasteners 64 a are arranged between the holding parts 32 a.
  • the spring receptacles 36a and the spring receiving fasteners 64a are at least partially made of plastic.
  • the holding parts 32a have guide surfaces 68a, which guide the absorber mass 16a in the spring direction 30a during operation.
  • the holding parts 32a enclose the absorber mass 16a on a plane that is perpendicular to the spring direction 30a.
  • the holding parts 32a completely surround the absorber mass 16a.
  • the retainers 32a could be the absorber mass 16a enclose by more than 180 degrees.
  • the retaining members 32a guide the absorber mass 16a to surfaces furthest from a center of gravity 70a of the absorber mass 16a, whereby low guiding forces and low friction can be achieved.
  • a housing cover could also guide the absorber mass 16a and / or the absorber spring 14a.
  • the holding parts 32a each have spring attachments 72a, which fix the Tilgerfedern 14a.
  • the Tilgerfedern 14a are screwed onto the spring fasteners 72a.
  • the four Tilgerfedern 14a are mechanically fixedly connected on one side with the holding parts 32a and on one side with the spring receivers 36a.
  • the spring receptacles 36a have, seen perpendicular to the spring direction 30a, a cross-shaped cross-section on ( FIG. 5 ).
  • the spring receivers 36a extend into recesses 74a of the absorber mass 16a.
  • the spring retainers 36a are supported on the absorber mass 16a.
  • the spring receiving fasteners 64a are pushed onto the absorber mass 16a and fix the spring retainers 36a so that a positive connection is created between the spring retainers 36a and the absorber mass 16a.
  • the spring forces of the Tilgerfedern 14 a secure the spring receiving attachment 64 a.
  • the Schwingungstilgervoriques could not shown damping elements, which dampen a striking of the absorber mass 16a at an end stop.
  • the damping elements between the spring receivers 36a and the holding parts 32a could be arranged in the interior of the Tilgerfedern 14a in a guide of the holding parts 32a or on the housing cover 22a.
  • the absorber mass 16a has a homogeneous cross-section in the spring direction 30a.
  • the cross section is shaped by a bar pressing method. Tilgermassen be cut by a machine from a pole and provided in the same step with recesses for receiving spring mounts.
  • an absorber mass could have several parts by mass.
  • at least one of the mass parts likewise has a homogeneous cross-section. Particularly advantageous is at least one of the mass parts along at least one direction, preferably for the most part a standardized cross-section.
  • FIGS. 8 and 9 a further embodiment of the invention is shown.
  • the letter a in the reference numerals of the embodiment in the FIGS. 1 to 7 by the letter b in the reference numerals of the embodiment in the FIGS. 8 and 9 replaced.
  • the following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the other embodiments, in particular in the FIGS. 1 to 7 , can be referenced.
  • FIGS. 8 and 9 relate, as in the embodiment of FIGS. 1 to 7 described, a hand tool 10b according to the invention with a in the FIGS. 8 and 9 illustrated Schwingungstilgervoriques 12b, a drive mechanism 18b and a mechanism housing 20b with a housing cover 22b and a housing shell 52b.
  • the housing cover 22b closes in a ready state, a space 24b, in which the drive mechanism 18b is arranged.
  • the housing cover 22b has attachment means 26b which secure the vibration absorber device 12b in an operative state.
  • the Schwingungstilgervorides 12b has two Tilgerfedern 14b, a damping mass 16b, a first and a second holding part 32b, a first and a second spring receiving 36b, 38b and four support members 40b, 42b.
  • the holding parts 32b are pushed onto the absorber mass 16b. There, the holding parts 32 b are secured with locking elements 94 b.
  • the blocking elements 94b are designed as clamping sleeves, but could also be designed as other units that appear appropriate to the person skilled in the art.
  • the holding parts 32b are movably mounted in the spring direction 30b on the absorber mass 16b, in each case between two blocking elements 94b and a middle shoulder 96b.
  • the center shoulder 96b extends perpendicular to the spring direction 30b.
  • the first holding part 32b and the first spring retainer 36b are arranged facing the insert tool attachment 46b.
  • the absorber mass 16b moves in an operating state, the second spring retainer 38b in the direction of the insert tool attachment 46b.
  • the second spring retainer 38b exerts an acceleration force on the absorber mass 16b.
  • the acceleration force brakes the absorber mass 16b.
  • the second spring retainer 38b transmits kinetic energy of the absorber mass 16b to the absorber springs 14b via the blocking elements 94b.
  • the Tilgerfedern 14b store this energy between.
  • the Tilgerfedern 14b After the Tilgerfedern 14b have the absorber mass 16b stopped relative to the holding parts 32b, the Tilgerfedern 14b give the energy back to the absorber mass 16b, thereby accelerating the absorber mass 16b.
  • the first spring receiver 36b supports a counter force of the acceleration force on the first holding part 32b. After the absorber mass 16b has crossed a middle position, the same process takes place mirror-inverted in an opposite direction.
  • the support elements 40b, 42b press in two different operating states, the spring retainers 36b, 38b against the Tilgerfedern 14b.
  • a force of the support elements 40b, 42b is significantly smaller than the acceleration force of the Tilgerfedern 14b.
  • the support elements 40b, 42b are aligned coaxially with the Tilgerfedern 14b.
  • the Tilgerfedern 14b are completely in an axial region, that is arranged laterally next to the absorber mass 16b.

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

Claims (5)

  1. Dispositif d'amortissement des vibrations (12b) d'une machine-outil à main (10b), dans lequel le dispositif d'amortissement des vibrations (12b) présente au moins un ressort d'amortissement (14b), une masse d'amortissement (16b) et un boîtier mécanique (20b), dans lequel le dispositif d'amortissement des vibrations (12b) présente au moins deux parties de maintien (32b), qui entourent au moins partiellement la masse d'amortissement (16b), et dans lequel le dispositif d'amortissement des vibrations (12b) présente au moins un logement de ressort (36b, 38b), qui dans au moins un état de fonctionnement exerce une force d'accélération sur la masse d'amortissement (16b) et dans au moins un état de fonctionnement supporte une force sur les parties de maintien (32b), caractérisé en ce que le dispositif d'amortissement des vibrations (12b) présente au moins un élément d'appui (40b, 42b), qui presse le logement de ressort (36b, 38b) contre le ressort d'amortissement (14b).
  2. Dispositif d'amortissement des vibrations (12b) selon la revendication 1, caractérisé en ce que le ressort d'amortissement (14b) exerce dans au moins un état de fonctionnement une force de fixation sur le boîtier mécanique (22b).
  3. Dispositif d'amortissement des vibrations (12b) selon l'une quelconque des revendications précédentes, caractérisé en ce que le boîtier mécanique (20b) présente un couvercle de boîtier (22b), qui présente un moyen de fixation (26b), qui dans au moins un état de fonctionnement fixe au moins partiellement le dispositif d'amortissement des vibrations (12b).
  4. Dispositif d'amortissement des vibrations (12b) selon l'une quelconque des revendications précédentes, caractérisé en ce que le ressort d'amortissement (14b) est disposé entièrement dans une région axiale de la masse d'amortissement (16b).
  5. Machine-outil à main (10b) équipée d'un dispositif d'amortissement des vibrations (12b) selon l'une quelconque des revendications précédentes.
EP10778895.2A 2009-12-16 2010-10-22 Machine-outil à main comportant un dispositif d'amortissement des vibrations Active EP2512750B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054731A DE102009054731A1 (de) 2009-12-16 2009-12-16 Handwerkzeugmaschine
PCT/EP2010/065967 WO2011072916A1 (fr) 2009-12-16 2010-10-22 Machine-outil à main comportant un dispositif d'amortissement des vibrations

Publications (2)

Publication Number Publication Date
EP2512750A1 EP2512750A1 (fr) 2012-10-24
EP2512750B1 true EP2512750B1 (fr) 2017-05-17

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EP10778895.2A Active EP2512750B1 (fr) 2009-12-16 2010-10-22 Machine-outil à main comportant un dispositif d'amortissement des vibrations

Country Status (6)

Country Link
US (1) US10071468B2 (fr)
EP (1) EP2512750B1 (fr)
CN (1) CN102655990B (fr)
DE (1) DE102009054731A1 (fr)
RU (1) RU2012129834A (fr)
WO (1) WO2011072916A1 (fr)

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EP3189940B1 (fr) * 2012-12-25 2018-01-31 Makita Corporation Outil à impact
CN106457543B (zh) * 2014-04-30 2019-11-19 工机控股株式会社 作业工具
CN114131565B (zh) * 2015-02-15 2023-08-15 苏州宝时得电动工具有限公司 动力工具
DE102015204843A1 (de) * 2015-03-18 2016-09-22 Robert Bosch Gmbh Dämpfungsvorrichtung für eine Handwerkzeugmaschine
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DE102009054731A1 (de) 2011-06-22
RU2012129834A (ru) 2014-01-27
CN102655990A (zh) 2012-09-05
EP2512750A1 (fr) 2012-10-24
US20120255753A1 (en) 2012-10-11
CN102655990B (zh) 2016-08-03
US10071468B2 (en) 2018-09-11
WO2011072916A1 (fr) 2011-06-23

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