[go: up one dir, main page]

US20080314610A1 - Hand-Held Power Tool, in Particular a Rotary Hammer and/or Chisel Hammer - Google Patents

Hand-Held Power Tool, in Particular a Rotary Hammer and/or Chisel Hammer Download PDF

Info

Publication number
US20080314610A1
US20080314610A1 US11/911,386 US91138606A US2008314610A1 US 20080314610 A1 US20080314610 A1 US 20080314610A1 US 91138606 A US91138606 A US 91138606A US 2008314610 A1 US2008314610 A1 US 2008314610A1
Authority
US
United States
Prior art keywords
hand
held power
power tool
transmission element
motor
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.)
Abandoned
Application number
US11/911,386
Other languages
English (en)
Inventor
Gerhard Meixner
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
Individual
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 Individual filed Critical Individual
Assigned to ROBERT BOSCH GMBH reassignment ROBERT BOSCH GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEIXNER, GERHARD
Publication of US20080314610A1 publication Critical patent/US20080314610A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • 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
    • 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
    • B25D2211/003—Crossed drill and motor spindles
    • 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
    • B25D2250/245—Spatial arrangement of components of the tool relative to each other

Definitions

  • the present invention is directed to a hand-held power tool according to the definition of the species in Claim 1 .
  • Hand-held power tools designed as rotary hammers and/or chisel hammers with a motor unit and a transmission unit, and with a working axis serving as a drilling axis and/or impact axis are known.
  • the transmission unit has rotation axes that are oriented either perpendicular or parallel to the working axis.
  • the present invention is directed to a hand-held power tool, in particular a rotary hammer and/or chisel hammer, with a motor unit and a transmission unit, and with a working axis.
  • At least one transmission element of the transmission unit includes a rotation axis that is oriented diagonally to the working axis.
  • a “transmission unit” refers, in particular, to a unit for transferring and/or converting rotary motions.
  • a “working axis” refers, in particular, to a rotation axis of a tool fitting or a tool that is installable in the tool fitting, and/or an impact axis, in the direction of which an impulse on the tool—which is installable in the tool fitting—may be introduced.
  • oriented diagonally means, in particular, that the rotation axis is oriented neither parallel nor perpendicular to the working axis, and preferably forms an angle between 95° and 175° or between 5° and 85°, and, particularly preferably, between 100° and 150° or between 10° and 60° with the working axis.
  • the transmission element may be provided in the form of various elements that appear reasonable to one skilled in the art, e.g., bearing axes, pulleys, etc., and particularly advantageously, they may be provided at least partially in the form of a gearwheel and/or a shaft, by way of which a compact design and an advantageous power flow may be attained.
  • the transmission element is provided in the form of a motor shaft—which should also be regarded as the transmission element in the sense of the present invention—the motor unit in particular may be integrated in a hand-held power tool housing in a particularly space-saving manner.
  • the position of a center of mass of the motor unit may be advantageously tailored to basic conditions.
  • a “motor shaft” refers, in particular, to a shaft that is driveable directly using a turbine unit and/or an electromagnetic unit of the motor unit.
  • a “gear stage” refers, in particular, to a unit that includes different input and output radii. Torque is introduced into the gear stage via by the input radius, and torque is transmitted to a corresponding component via the output radius.
  • the inventive means of attaining the object of the present invention is basically suited for use with all hand-held power tools that appear reasonable to one skilled in the art, and particularly advantageously for hand-held power tools with an impact mechanism, so that a particularly compact design may be attained despite the need to provide additional components for the impact mechanism.
  • the impact mechanism may include various drive units for converting a rotary motion into an impact motion, such as an eccentric unit or, advantageously, a wobble bearing, which may also be integrated in a particularly space-saving manner.
  • a “wobble bearing” refers, in particular, to a bearing with which, due to a wobble element supported obliquely in a bearing means, a wobbling motion of the wobble element results when the bearing element rotates.
  • the hand-held power tool includes a motor shaft with an output region that is located at least partially on a side of the working axis facing away from a center of mass of the motor unit, by way of which an overall height, in particular, which is defined by other components, may be used advantageously for the motor unit and the motor shaft, and, in all, a minimal overall height may be attained.
  • an overall height in particular, which is defined by other components, may be used advantageously for the motor unit and the motor shaft, and, in all, a minimal overall height may be attained.
  • the hand-held power tool includes a motor shaft with an output region that is located at least partially on a side of the working axis facing away from a center of mass of the motor unit.
  • FIG. 1 shows a schematic depiction of a hand-held power tool, in a side view, with a cut-away view
  • FIG. 2 shows an alternative hand-held power tool with a special gear stage
  • FIG. 3 shows an alternative hand-held power tool with a specially positioned output region of a motor shaft.
  • FIG. 1 shows a hand-held power tool designed as a rotary hammer, with a hand-held power tool housing 34 a , a motor unit 10 a located in hand-held power tool housing 34 a and provided in the form of an electric motor, and a transmission unit 12 a , which is provided to transfer a drive force from motor unit 10 a to a piston 36 a of an impact mechanism 26 a of the hand-held power tool.
  • Piston 36 a is guided in the direction of a working axis 14 a , in the direction of which impact impulses may be generated by impact mechanism 26 a .
  • Transmission unit 12 a includes a transmission element 16 a provided in the form of a motor shaft, a transmission element 18 a provided in the form of a motor pinion, and a transmission element 20 a with the motor pinion, which is provided in the form of a gearwheel, the rotation axes 22 a , 24 a of which are oriented diagonally to working axis 14 a of the hand-held power tool.
  • Rotation axes 22 a , 24 a of transmission elements 16 a , 18 a , 20 a have components that extend in the direction of working axis 14 a , and are tilted in the direction such that their region facing a top 46 a of hand-held power tool housing 34 a points toward tool fitting 40 a .
  • Rotation axis 22 a of transmission element 16 a provided in the form of the motor shaft, and of transmission element 18 a provided in the form of the motor pinion form an angle 42 a of approximately 105° with working axis 14 a .
  • a motor pinion could also be formed as a single piece on the motor shaft.
  • Motor unit 10 a has a central longitudinal axis that is coaxial with rotation axis 22 a , and which is also oriented diagonally to working axis 14 a .
  • Rotation axis 24 a of transmission element 20 a which is provided in the form of the gearwheel and meshes with the motor pinion, forms an angle 44 a of approximately 145° with working axis 14 a.
  • An output region 30 a of the motor shaft which is provided in the form of the motor pinion and via which the motor pinion meshes with transmission element 20 a provided in the form of the gearwheel, is located on a side of working axis 14 a facing away from a center of mass 32 a of motor unit 10 a , and/or output region 30 a is located on the side—relative to working axis 14 a —facing top 46 a of hand-held power tool housing 34 a .
  • Transmission element 20 a provided in the form of the gearwheel meshes with a further gearwheel 56 a provided in the form of a bevel gear, which is non-rotatably mounted on a shaft 48 a of impact mechanism 26 a , which is oriented parallel to working axis 14 a .
  • a motor pinion could also be coupled directly with a gearwheel mounted on shaft 48 a.
  • a bearing element 50 a of a wobble bearing 28 a of impact mechanism 26 a is non-rotatably mounted on shaft 48 a —at a distance from gearwheel 56 a , in the direction of tool fitting 40 a .
  • a wobble finger 52 a is mounted on bearing element 50 a of a wobble bearing 28 a of impact mechanism 26 a such that it is diagonal to the orientation of shaft 48 a .
  • Wobble finger 52 a is coupled in a driving manner with piston 36 a , which is guided in a hammer tube 54 a in the direction of working axis 14 a.
  • torque produced by motor unit 10 a is transmitted to transmission element 16 a provided in the form of the motor shaft, from transmission element 16 a via transmission element 18 a provided in the form of the motor pinion, via transmission element 20 a provided in the form of the gearwheel, via gearwheel 56 a and shaft 48 a to bearing element 50 a of wobble bearing 28 a , which—in combination with wobble finger 52 a —generates a motion of piston 36 a that moves back and forth in the axial direction, i.e, in the direction of working axis 14 a .
  • a fan wheel 58 a is mounted on the motor shaft on the side of motor unit 10 a facing away from the motor pinion.
  • FIGS. 2 and 3 Alternative hand-held power tools are shown in FIGS. 2 and 3 .
  • Components, features, and functions that are essentially the same are labelled with the same reference numerals.
  • the reference numerals of the exemplary embodiments are appended with the letters a, b, and c.
  • the description below is essentially limited to the differences from the exemplary embodiment in FIG. 1 .
  • the components, features, and functions that remain the same reference is made to the description of the exemplary embodiment in FIG. 1 .
  • the hand-held power tool provided in the form of a chisel hammer and shown in FIG. 2 includes a transmission unit 12 b , which includes a transmission element 16 b provided in the form of a motor shaft, a transmission element 18 b provided in the form of a motor pinion, and a transmission element 20 b with the motor pinion provided in the form of a gear stage, the rotation axes 22 b , 24 b of which are oriented diagonally to a working axis 14 b of the hand-held power tool.
  • Gear element 20 b includes two gearwheels 60 b , 62 b .
  • Gearwheel 60 b meshes via its spur toothing with transmission element 18 b provided in the form of the motor pinion, and gearwheel 62 b —which has a smaller diameter and is provided in the form of a bevel pinion—meshes with a gearwheel 56 b , which is mounted on a shaft 48 b of an impact mechanism 26 b and is provided in the form of a crown wheel.
  • the hand-held power tool provided in the form of a chisel hammer and shown in FIG. 3 includes a transmission unit 12 c , which includes a transmission element 16 c provided in the form of a motor shaft, and a transmission element 18 c provided in the form of a motor pinion, the rotation axis 22 c of which forms an angle 42 c of approximately 90° with a working axis 14 c . Furthermore, transmission unit 12 c includes a transmission element 20 c with the motor pinion, provided in the form of a bevel gear, rotation axis 24 c of which is oriented diagonally to working axis 14 c of the hand-held power tool.
  • Rotation axis 24 c of transmission element 20 c includes a component that extends in the direction of working axis 14 c .
  • Rotation axis 24 c is tilted in the direction such that its region facing a top 46 c of a hand-held power tool housing 34 c points away from a tool fitting 40 c .
  • Rotation axis 24 c of transmission element 20 c forms an angle 44 c of approximately 50° with working axis 14 c .
  • Transmission element 20 c meshes—on a side facing away from the motor pinion—with a bevel gear 56 c , which is non-rotatably mounted on a shaft 48 c of an impact mechanism 26 c.
  • An output region 30 c of the motor shaft which is provided in the form of the motor pinion and via which the motor pinion meshes with transmission element 20 c provided in the form of the gearwheel, is located on a side of a center of mass 32 c of motor unit 10 c facing away from working axis 14 c .
  • Transmission unit 20 c provided in the form of the motor pinion is located on a side facing an underside 38 c —relative to center of mass 32 c —of motor unit 10 c of hand-held power tool housing 34 c .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
US11/911,386 2005-12-29 2006-11-20 Hand-Held Power Tool, in Particular a Rotary Hammer and/or Chisel Hammer Abandoned US20080314610A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005062861.3 2005-12-29
DE102005062861A DE102005062861A1 (de) 2005-12-29 2005-12-29 Handwerkzeugmaschine, insbesondere Bohr- und/oder Meißelhammer
PCT/EP2006/068677 WO2007077052A1 (de) 2005-12-29 2006-11-20 HANDWERKZEUGMASCHINE, INSBESONDERE BOHR- UND/ODER MEIßELHAMMER

Publications (1)

Publication Number Publication Date
US20080314610A1 true US20080314610A1 (en) 2008-12-25

Family

ID=37698280

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/911,386 Abandoned US20080314610A1 (en) 2005-12-29 2006-11-20 Hand-Held Power Tool, in Particular a Rotary Hammer and/or Chisel Hammer

Country Status (6)

Country Link
US (1) US20080314610A1 (ru)
EP (1) EP1968770A1 (ru)
CN (1) CN101351306A (ru)
DE (1) DE102005062861A1 (ru)
RU (1) RU2434733C2 (ru)
WO (1) WO2007077052A1 (ru)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090020299A1 (en) * 2007-07-19 2009-01-22 Hilti Aktiengesellschaft Hand-held power tool with a pneumatic percussion mechanism
US9908234B2 (en) * 2012-11-28 2018-03-06 Robert Bosch Gmbh Portable power tool
US11357697B2 (en) 2018-12-26 2022-06-14 Therabody, Inc. Percussive therapy device
US11432994B2 (en) 2018-12-26 2022-09-06 Therabody, Inc. Intelligence engine system and method
US11452670B2 (en) 2018-12-26 2022-09-27 Therabody, Inc. Percussive therapy device with orientation, position, and force sensing and accessory therefor
US11559462B2 (en) 2017-03-14 2023-01-24 Therabody, Inc. Percussive massage device and method of use
US11564860B2 (en) 2018-12-26 2023-01-31 Therabody, Inc. Percussive therapy device with electrically connected attachment
US11813221B2 (en) 2019-05-07 2023-11-14 Therabody, Inc. Portable percussive massage device
US11857481B2 (en) 2022-02-28 2024-01-02 Therabody, Inc. System for electrical connection of massage attachment to percussive therapy device
US11890253B2 (en) 2018-12-26 2024-02-06 Therabody, Inc. Percussive therapy device with interchangeable modules
US11957635B2 (en) 2015-06-20 2024-04-16 Therabody, Inc. Percussive therapy device with variable amplitude
US11998504B2 (en) 2019-05-07 2024-06-04 Therabody, Inc. Chair including percussive massage therapy
US12023294B2 (en) 2019-05-07 2024-07-02 Therabody, Inc. Percussive massage device with force meter
US12064387B2 (en) 2018-12-26 2024-08-20 Therabody, Inc. Percussive therapy device with electrically connected attachment
US12161599B1 (en) 2023-09-21 2024-12-10 Therabody, Inc. Systems, methods, and devices for percussive massage therapy
US12172279B2 (en) 2020-12-04 2024-12-24 Hilti Aktiengesellschaft Power tool having two motors
US12295900B1 (en) 2022-12-21 2025-05-13 Therabody, Inc. Systems, methods, and devices for percussive massage therapy with voice activation
US12402686B2 (en) 2023-06-14 2025-09-02 Therabody, Inc. Articles of footwear having therapeutic assemblies

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5479023B2 (ja) * 2009-10-20 2014-04-23 株式会社マキタ 充電式電動工具
DE102011077220A1 (de) * 2010-12-21 2012-06-21 Robert Bosch Gmbh Elektrohandwerkzeug
US8925646B2 (en) 2011-02-23 2015-01-06 Ingersoll-Rand Company Right angle impact tool
US9022888B2 (en) * 2013-03-12 2015-05-05 Ingersoll-Rand Company Angle impact tool
JP2014172141A (ja) * 2013-03-12 2014-09-22 Makita Corp 打撃工具
CN109549681B (zh) * 2018-11-22 2021-12-17 南昌大学第二附属医院 钻孔装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901981A (en) * 1931-01-12 1933-03-21 Ragnar Erfass Motor-driven mechanical hammer
US2873735A (en) * 1956-07-13 1959-02-17 Peugeot & Cie Soc Electric hammer
US3452226A (en) * 1965-04-30 1969-06-24 Bosch Gmbh Robert Portable power tool of compact construction
US3480089A (en) * 1966-07-15 1969-11-25 Siddons Ind Rotary percussion apparatus
US3718193A (en) * 1971-02-18 1973-02-27 Bosch Gmbh Robert Cooling system for portable impulse transmitting machines
US5533581A (en) * 1991-05-18 1996-07-09 Robert Bosch Gmbh Electric hand tool, in particular drill
US7048076B2 (en) * 2002-12-19 2006-05-23 Hilti Aktiengesellschaft Percussion electrical hand held tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE655032C (de) * 1934-07-23 1938-01-06 Karl Axel Ragnar Erfass Motorangetriebener Hammer
DE952883C (de) * 1940-06-09 1956-11-22 Siemens Ag Elektrisches Schlagbohrgeraet
SU856679A1 (ru) * 1979-11-02 1981-08-23 Предприятие П/Я Р-6678 Привод шпиндел дл вибрационного резани
SU1373488A1 (ru) * 1986-03-07 1988-02-15 Гомельский политехнический институт Привод шпиндел дл вибрационного резани
DE19647992A1 (de) * 1996-11-20 1998-05-28 Karl Schweikert Motorisch angetriebenes Handwerkzeug zum Bohren, Schrauben oder ähnlichen Verrichtungen
DE29800248U1 (de) * 1998-01-09 1999-05-06 Robert Bosch Gmbh, 70469 Stuttgart Bohr- und/oder Schlaghammer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901981A (en) * 1931-01-12 1933-03-21 Ragnar Erfass Motor-driven mechanical hammer
US2873735A (en) * 1956-07-13 1959-02-17 Peugeot & Cie Soc Electric hammer
US3452226A (en) * 1965-04-30 1969-06-24 Bosch Gmbh Robert Portable power tool of compact construction
US3480089A (en) * 1966-07-15 1969-11-25 Siddons Ind Rotary percussion apparatus
US3718193A (en) * 1971-02-18 1973-02-27 Bosch Gmbh Robert Cooling system for portable impulse transmitting machines
US5533581A (en) * 1991-05-18 1996-07-09 Robert Bosch Gmbh Electric hand tool, in particular drill
US7048076B2 (en) * 2002-12-19 2006-05-23 Hilti Aktiengesellschaft Percussion electrical hand held tool

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8267189B2 (en) * 2007-07-19 2012-09-18 Hilti Aktiengesellschaft Hand-held power tool with a pneumatic percussion mechanism
US20090020299A1 (en) * 2007-07-19 2009-01-22 Hilti Aktiengesellschaft Hand-held power tool with a pneumatic percussion mechanism
US9908234B2 (en) * 2012-11-28 2018-03-06 Robert Bosch Gmbh Portable power tool
US11957635B2 (en) 2015-06-20 2024-04-16 Therabody, Inc. Percussive therapy device with variable amplitude
US11559462B2 (en) 2017-03-14 2023-01-24 Therabody, Inc. Percussive massage device and method of use
US11357697B2 (en) 2018-12-26 2022-06-14 Therabody, Inc. Percussive therapy device
US11452670B2 (en) 2018-12-26 2022-09-27 Therabody, Inc. Percussive therapy device with orientation, position, and force sensing and accessory therefor
US11564860B2 (en) 2018-12-26 2023-01-31 Therabody, Inc. Percussive therapy device with electrically connected attachment
US12396919B2 (en) 2018-12-26 2025-08-26 Therabody, Inc. Percussive therapy device with electrically connected attachment
US12329711B2 (en) 2018-12-26 2025-06-17 Therabody, Inc. Percussive therapy device with interchangeable modules
US11890253B2 (en) 2018-12-26 2024-02-06 Therabody, Inc. Percussive therapy device with interchangeable modules
US11432994B2 (en) 2018-12-26 2022-09-06 Therabody, Inc. Intelligence engine system and method
US12064387B2 (en) 2018-12-26 2024-08-20 Therabody, Inc. Percussive therapy device with electrically connected attachment
US11998504B2 (en) 2019-05-07 2024-06-04 Therabody, Inc. Chair including percussive massage therapy
US12023294B2 (en) 2019-05-07 2024-07-02 Therabody, Inc. Percussive massage device with force meter
US11813221B2 (en) 2019-05-07 2023-11-14 Therabody, Inc. Portable percussive massage device
US12447099B2 (en) 2019-05-07 2025-10-21 Therabody, Inc. Portable percussive massage device
US12172279B2 (en) 2020-12-04 2024-12-24 Hilti Aktiengesellschaft Power tool having two motors
US11857481B2 (en) 2022-02-28 2024-01-02 Therabody, Inc. System for electrical connection of massage attachment to percussive therapy device
US12295900B1 (en) 2022-12-21 2025-05-13 Therabody, Inc. Systems, methods, and devices for percussive massage therapy with voice activation
US12402686B2 (en) 2023-06-14 2025-09-02 Therabody, Inc. Articles of footwear having therapeutic assemblies
US12161599B1 (en) 2023-09-21 2024-12-10 Therabody, Inc. Systems, methods, and devices for percussive massage therapy
US12285379B2 (en) 2023-09-21 2025-04-29 Therabody, Inc. Systems, methods, and devices for percussive massage therapy
US12290486B2 (en) 2023-09-21 2025-05-06 Therabody, Inc. Systems, methods, and devices for percussive massage therapy
US12478546B2 (en) 2023-09-21 2025-11-25 Therabody, Inc. Systems, methods, and devices for percussive massage therapy

Also Published As

Publication number Publication date
RU2008130924A (ru) 2010-02-27
RU2434733C2 (ru) 2011-11-27
CN101351306A (zh) 2009-01-21
WO2007077052A1 (de) 2007-07-12
EP1968770A1 (de) 2008-09-17
DE102005062861A1 (de) 2007-07-05

Similar Documents

Publication Publication Date Title
US20080314610A1 (en) Hand-Held Power Tool, in Particular a Rotary Hammer and/or Chisel Hammer
EP1439038B1 (en) Electric hammer
US20100224033A1 (en) Handheld power tool
US20110011608A1 (en) Power tool
US7059425B2 (en) Reciprocating power tool
US7661485B2 (en) Hammer drill
EP2014421B1 (en) Rotary Hammer
US9925653B2 (en) Hammer drill
CN102655991B (zh) 手持式工具机
US9010456B2 (en) Hand-held power tool
US20110000693A1 (en) Hand-held power tool
US11571796B2 (en) Rotary hammer
CN101641187A (zh) 手持式工具机
US7857074B2 (en) Hand-held power tool with a percussion unit
US20100038104A1 (en) Hand held machine tool
CN102189284A (zh) 锤钻装置
US8342259B2 (en) Transmission device
EP2415563B9 (en) Impact tool
US20140000923A1 (en) Portable Power Tool
GB2381228A (en) Electrically powered hammer with support bearing
CN101341006B (zh) 手持式工具机，尤其是锤钻和/或凿锤
US11185970B2 (en) Hand-held power tool
US20080149359A1 (en) Hand-Held Power Tool, in Particular Rotary Hammer and/or Chisel Hammer
US20070151412A1 (en) Hand-guided power tool, in particular rotary hammer and/or chisel hammer
JP2003245873A (ja) 動力工具

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROBERT BOSCH GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEIXNER, GERHARD;REEL/FRAME:019954/0502

Effective date: 20070817

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION