US20060185867A1 - Hand-held power tool - Google Patents

Hand-held power tool Download PDF

Info

Publication number
US20060185867A1
US20060185867A1 US11/326,046 US32604606A US2006185867A1 US 20060185867 A1 US20060185867 A1 US 20060185867A1 US 32604606 A US32604606 A US 32604606A US 2006185867 A1 US2006185867 A1 US 2006185867A1
Authority
US
United States
Prior art keywords
main
main element
tool
hand
held power
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
US11/326,046
Other languages
English (en)
Inventor
Karl Frauhammer
Gerhard Meixner
Heiko Roehm
Willy Braun
Axel Kuhnle
Andreas Strasser
Ralph Dammertz
Joachim Schadow
Christian Koepf
Juergen Lennartz
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: DAMMERTZ, RALPH, STRASSER, ANDREAS, ROEHM, HEIKO, SCHADOW, JOACHIM, BRAUN, WILLY, KUHNLE, AXEL, LENNARTZ, JUERGEN, FRAUHAMMER, KARL, KOEPF, CHRISTIAN, MEIXNER, GERHARD
Publication of US20060185867A1 publication Critical patent/US20060185867A1/en
Priority to US12/539,816 priority Critical patent/US7886839B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • 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
    • B25D17/04—Handles; Handle mountings
    • 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
    • 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

Definitions

  • the present invention is directed to a hand-held power tool.
  • Rotary hammers are made known in publication DE 38 39 207 A1, in the case of which a rear main handle is supported such that it is movable relative to the rest of the rotary hammer.
  • the movable support combined with a spring element, vibration damping of the main handle is achieved, since oscillatory motions travelling from the tool toward the main handle are largely absorbed.
  • the present invention is directed to a hand-held power tool, in particular a rotary hammer and/or chisel hammer, composed of a main element and a main handle fastened to the main element, wherein the main handle is supported such that it is movable relative to the main element, and the main element includes a tool fitting that defines a tool axis and a center of gravity that defines a normal direction oriented perpendicularly to the tool axis and pointing toward the center of gravity.
  • a hand-held power tool typically vibrates to a great extent in the direction in which it is pressed against a tool or a work piece.
  • the extent of vibration damping of the main handle is therefore typically determined by the damping of the main handle in the working direction.
  • An action of force on the main element in the direction of the tool axis causes the main element to move with a rotation component, especially with hand-held power tools with which the center of gravity of the main element is far away from the tool axis.
  • the part of the main element facing away from the tool makes a motion that has a movement component in the direction of the tool axis and a movement component in the normal direction.
  • the handle Given a movability of the main element relative to the handle such that this part of the main element can oscillate in a trajectory with a movement component in the normal direction, the handle can also be at least largely decoupled from this oscillation, which is oriented perpendicularly to the tool axis.
  • the tool axis which is determined by the tool fitting—extends in the longitudinal axis and/or shank axis of the shank tool.
  • the main element can include everything fastened to the hand-held power tool except for the main handle.
  • the hand-held power tool can also include an additional handle.
  • the “stationary position” can be understood to be a position of the main handle relative to the main element in which no external forces are applied to the main handle, e.g., by an operator.
  • the main handle In the stationary position, the main handle is typically pressed against a stop by a spring element.
  • the portion of the main element guided in the normal direction along a trajectory with a movement component is a significant portion of the main element.
  • a portion such as this comprises 10 percent by weight, and particularly at least 35 percent by weight of the main element, a portion of more than 50 percent by weight of the main element resulting in a particularly good vibration damping of the main handle.
  • the ratio of the movement component of the portion in the normal direction and the movement component of the portion in the direction of the tool axis should also be significant.
  • the movement component of the portion in the normal direction advantageously comprises at least 18% of the total movement of the portion.
  • the trajectory of the portion extends with a slant of at least 10° relative to a flat surface imagined to extend through the tool axis, with the normal direction as the surface normal, in the direction of the half-space in which the center of gravity is located.
  • a particularly stable movement guidance of the handle can be obtained when the main handle is capable of being swiveled relative to the main element around at least two pivot axes.
  • the main handle is advantageously capable of being swiveled via two rotating elements capable of being swiveled around the pivot axes and moved relative to the main handle, so that the main handle is capable of being swiveled relative to the main element, in particular around four pivot axes. Via the selection of the orientation and length of the two rotating elements relative to each other, a high degree of flexibility can be obtained in terms of adjusting the trajectory of the main element relative to the main handle.
  • the rotating elements can be of equal length and parallel with each other, by way of which a translatory motion of the main element on a circular trajectory around the main handle is obtainable.
  • a rotatory motion of the main element relative to the stationary main handle can be obtained in addition to the translatory motion.
  • a rotatory motion can also be achieved when the rotating elements form an angle >0° with each other when they are in the resting position, i.e., when they are not parallel.
  • the selection of the trajectory of the main element relative to the stationary main handle is advantageously adapted to the main direction of oscillation that occurs during operation of the hand-held power tool and in which the part of the main element to which the main handle is fastened moves during operation.
  • the main direction of oscillation is the direction of the greatest oscillation of the part.
  • An adaptation occurs when the main element can carry out at least 3 ⁇ 4 of the oscillation relative to the stationary main handle.
  • a simple design for fastening the main handle while ensuring a high level of flexibility in terms of selection of the trajectory can be achieved when the rotating elements are supported in individual supports in a pivoting manner at their ends facing away from the main handle, and a straight line extending through the support forms an angle >45° with the tool axis. In particular, this line is located substantially perpendicular to the tool axis.
  • a stable guidance of the hand-held power tool during machining of a work piece can be obtained when the movement of the main handle relative to the main element is kept in a single dimension.
  • the possible motion that the main element can carry out relative to the main handle is therefore a purely one-dimensional motion, i.e., a purely linear motion. This linear motion can be curved.
  • a high damping effect can be achieved when—with the main handle remaining stationary—the main element makes a rotational movement of its own around a joint-free axis of rotation when it moves from a stationary position and approaches the main handle.
  • This axis of rotation does not pass through a pivotal point. Instead, it passes a site that is favorable for vibration damping, e.g., through a motor housing or entirely outside of the hand-held power tool.
  • the axis of rotation itself shifts in the space while the main element moves relative to the main handle, i.e., the trajectory of the main element relative to the stationary main handle therefore being a translatory motion combined with a rotational movement of its own.
  • the axis of rotation it is possible to design the axis of rotation as a joint, by way of which the main handle is guided relative to the main element.
  • the entire joint-free or jointed axis of rotation is located in front of the main handle, the main handle being located behind the tool fitting relative to the tool axis.
  • the location of the main handle behind the tool fitting is not intended to be a limitation. Instead, it is intended to define the direction for the axis of rotation located in front of the main handle.
  • main elements the center of gravity of which is located at a relatively great distance from the tool axis.
  • the location of the axis of rotation below a motor housing is particularly advantageous. It is also advantageous to locate the axis of rotation in front of the center of gravity and, in particular, below the center of gravity.
  • the spacial direction “below” is intended to mean that the tool axis is located above the center of gravity.
  • a good damping of oscillations oriented in various directions can be obtained when the main element is movable relative to the main handle substantially in a plane that extends through the tool axis and in the normal direction.
  • the main element is movable in two dimensions.
  • the movability is essentially in the plane when the movability is given with a deviation of up to 5 mm and 100 relative to the plane. As a result of the guidance, a three-dimensional movability in the space is ruled out.
  • the main handle is supported such that it is displaceable relative to the main element via at least two parallel guides.
  • the present invention is particularly suited for hand-held power tools with a motor axis oriented substantially perpendicularly to the tool axis.
  • Hand-held power tools of this type are, e.g., a large drill, a rotary hammer, a rotary and chisel hammer, or a chisel hammer.
  • FIG. 1 Shows a side view of a rotary hammer with the housing removed
  • FIG. 2 Shows a schematic depiction of the rotary hammer in FIG. 1 with the tool axis and center of gravity sketched in,
  • FIG. 3 Shows the schematic depiction in FIG. 3 with an additional displacement of a main element of the hand-held power tool caused by a trajectory
  • FIG. 4 Shows a side view of a further rotary hammer with a somewhat different damping element
  • FIG. 5 Shows a schematic depiction of the hand-held power tool in FIG. 4 .
  • FIG. 6 Shows a schematic depiction of the trajectory of the main element of the hand-held power tool in FIGS. 4 and 5 ,
  • FIG. 7 Shows a side view of a further rotary hammer with a damping element capable of moving around only one axis of rotation
  • FIG. 8 Shows the motion of the main element of the hand-held power tool in FIG. 7 around the axis of rotation
  • FIG. 9 Shows a hand-held power tool with an insertable damping element
  • FIG. 10 Shows the trajectory of the main element of the hand-held power tool in FIG. 9 .
  • FIG. 11 Shows a hand-held power tool with a damping element with two elastomer strips
  • FIG. 12 Shows a motion of the main element corresponding to the deformation of the elastomer strips.
  • FIG. 1 shows a hand-held power tool in the form of a rotary hammer.
  • the hand-held power tool includes a main element 2 a and a main handle 4 a, which is fastened to main element 2 a via a damping element 6 a.
  • Main element 2 a includes a tool fitting 8 , an additional handle 10 , a motor 12 —which is located inside a motor housing—and an impact mechanism 14 , which is also hidden behind an inner housing.
  • Damping element 6 a includes two connecting elements 16 a, 18 a, which are interconnected by two rotating elements 20 a, 22 a such that they are movable relative to each other.
  • Rotating elements 20 a, 22 a are supported such that they can each rotate around two pivot axes 24 a, 26 a, 28 a, 30 a, so that main handle 4 a is capable of swiveling relative to main element 2 a around the four pivot axes 24 a, 26 a, 28 a, 30 a.
  • Pivot axes 24 a, 26 a, 28 a, 30 a are formed by supports, by way of which rotating elements 20 a, 22 a are pivotably supported.
  • Connecting elements 16 a, 18 a are pressed apart by a spring element 32 , so that connecting element 18 a rests against a stop 34 a.
  • Main handle 4 a includes all rigidly interconnected elements of main handle 4 a, including a switch 36 and the elements connected therewith, e.g., connecting element 18 a. All remaining elements of damping element 6 a are assigned to main element 2 a.
  • Main element 2 a can carry additional elements not shown in the Figures.
  • FIG. 2 shows the hand-held power tool in FIG. 1 with a schematically indicated main element 2 a.
  • a tool axis 38 is indicated, the tool axis being determined by tool fitting 8 and a tool 40 clamped fixedly therein.
  • a center of gravity 42 a of main element 2 a which is located, e.g., below tool axis 38 .
  • a normal direction 44 a that points downward extends perpendicularly from tool axis 38 and points toward center of gravity 42 a.
  • a trapezoid 46 that symbolically connects pivot axes 24 a, 26 a, 28 a, 30 a is shown.
  • FIG. 3 A further schematization of the hand-held power tool in FIGS. 1 and 2 is shown in FIG. 3 .
  • Trapezoid 46 is also shown in the stationary position.
  • main handle 4 a moves relative to main element 2 a or when main element 2 a makes an equivalent motion relative to stationary main handle 4 a
  • main element 2 a is displaced, e.g., out of the stationary position indicated by a solid line into the position indicated by the dashed line.
  • Pivot axis 24 a moves in the counterclockwise direction on a circular trajectory 48 a
  • pivot axis 28 a moves in the counterclockwise direction on a circular trajectory 50 a.
  • a line 52 a of trapezoid 46 imagined to connect pivot axes 24 a and 28 a is displaced from the position indicated by the solid line into the position indicated by the dashed line.
  • Main element 2 a is thereby displaced on a circular trajectory in a direction of motion 54 a.
  • Direction of motion 54 a is composed of a movement component 56 a parallel to tool axis 38 and a movement component 58 a parallel to normal direction 44 a.
  • main element 2 a is guided in normal direction 44 a along a trajectory with a movement component 58 a.
  • main handle 4 a when moved out of its stationary position toward main element 2 a, is guided in a direction of motion 54 a at an angle to tool axis 38 .
  • Stop 34 a should be designed such that a slant with an angle ⁇ a of at least 10°, in particular at least 20°, is given.
  • main element 2 a With a hand-held power tool such as the one shown in FIGS. 1 through 3 , the trajectory of main element 2 a remains in the plane of the page and is therefore a one-dimensional, circular linear motion. In this manner, oscillation of main element 2 a in direction of motion 54 a can be largely absorbed by damping element 6 a, main element 2 a being capable of oscillating freely while main handle 4 a remains stationary.
  • Direction of motion 54 a may include an additional movement component perpendicular to movement components 56 a and 58 a if, e.g., circular trajectories 48 a and 50 a are not exactly parallel to normal direction 44 a; this does not substantially affect the principles of the present invention.
  • FIG. 4 shows a further hand-held power tool that is very similar to the hand-held power tool shown in FIGS. 1 through 3 , with the only difference being that it has a slightly different damping element 6 b.
  • Damping element 6 b includes two rotating elements 20 b, 22 b having different lengths and that are oriented at an angle of approximately 30° relative to each other.
  • lines 60 , 62 shown in FIG. 5 which extend through pivot axes 24 b, 26 b —intersect at an axis of rotation 64 .
  • a motion of main element 2 b out of the stationary position indicated by a solid line into a position indicated by a dashed line is indicated schematically in FIG. 6 .
  • a motion of this type results in main element 2 b approaching main handle 4 b and results in pivot axes 24 b, 28 b moving in the counterclockwise direction on circular trajectories 48 b, 50 b.
  • a line 52 b that connects pivot axes 24 b, 28 b is thereby moved out of the stationary position indicated by the solid line into the position indicated by the dashed line. While, as shown in FIG.
  • main element 2 a was displaced downward and rearward in parallel i.e., entire main element 2 a has the same movement components 58 a in normal direction 44 a, when main element 2 b moves, main element 2 b also makes a rotational movement of its own in addition to the parallel displacement shown in FIG. 3 .
  • This combined motion causes main element 2 b to rotate around axis of rotation 64 .
  • main element 2 b makes a motion with a movement component 58 b in normal direction 44 b, the portion of movement components 58 b involved in direction of motion 54 b in the lower part of main element 2 b comprising more than 50% and decreasing in the upward direction.
  • main element 2 b makes a slight motion upward, so that it is guided there along a trajectory with a movement component opposite to normal direction 44 b.
  • a portion of more than 90% of main element 2 b has a movement component 58 b in normal direction 44 b, however.
  • a stop 34 b is designed such that direction of motion 54 b has a slant with an angle ⁇ b1 of approximately 30° or an angle ⁇ b2 of approximately 60°. The slant or tilt is directed downward, i.e., toward a flat surface imagined to extend through tool axis 38 with normal direction 44 b as the surface normal, in the direction of the half-space in which the center of gravity is located.
  • a further, randomly positioned line 66 is connected to line 52 b and extended toward axis of rotation 64 .
  • line 66 is moved rigidly with line 52 b out of the resting position into the position indicated by a dashed line
  • line 66 is moved out of the position indicated by the solid line into the position indicated by the dashed line.
  • the end of dashed line 66 remains at an extremely small distance away from axis of rotation 64 , thereby clearly showing that axis of rotation 64 does not remain statically stationary by the motion of main element 2 b, but rather makes a very small motion.
  • Axis of rotation 64 is located outside of the hand-held power tool and, in fact, in front of main handle 4 b, and in front of and behind center of gravity 42 b and motor 12 .
  • Damping element 6 c includes two connecting elements 16 c, 18 c, which are fastened together such that they are rotatable on a pivot axis 24 c.
  • Connecting element 16 c includes a stop 34 c that encompasses connecting element 18 c and therefore creates a stationary position as shown in FIG. 7 , into which connecting elements 16 c, 18 c are pressed by spring element 32 .
  • main element 2 c is moved far downward, so that its trajectory in direction of motion 54 c has a small movement component 58 c in normal direction 44 c.
  • This portion 68 includes more than half of the weight component of main element 2 c.
  • FIGS. 9 and 10 A further exemplary embodiment is shown in FIGS. 9 and 10 .
  • a main handle 4 d of a rotary hammer is supported on a main element 2 d such that it is displaceable by a damping element 6 d.
  • main handle 4 d When main handle 4 d is pressed in the direction toward main element 2 d, main element 2 d and main handle 4 d are moved toward each other, main element 2 d as shown in FIG. 10 —being displaced out of the resting position into the position indicated by the dashed line.
  • Entire main element 2 d is displaced on a trajectory in direction of motion 54 d, which has a movement component 58 d in normal direction 44 d and a somewhat greater movement component 56 d parallel to tool axis 38 .
  • FIGS. 11 and 12 A further exemplary embodiment with a connecting element 6 e with elastomer strips 70 , 72 is shown in FIGS. 11 and 12 .
  • Elastomer strips 70 , 72 which have their greatest expansion perpendicular to the plane of the page in FIGS. 11 and 12 , connect a main element 2 e with a main handle 4 e. Although they are bendable, as shown in FIG. 12 , they are essentially fixed in their longitudinal extension, so that they only permit a circular-motion to be carried out, as indicated in FIG. 12 by arrows.
  • the resultant motion of main element 2 e is one-dimensional, i.e., in a curved line, and is guided with a movement component 54 e in normal direction 44 e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
US11/326,046 2005-02-18 2006-01-05 Hand-held power tool Abandoned US20060185867A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/539,816 US7886839B2 (en) 2005-02-18 2009-08-12 Hand-held power tool with improved vibration-damped handle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005007547.9 2005-02-18
DE102005007547A DE102005007547A1 (de) 2005-02-18 2005-02-18 Handwerkzeugmaschine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/539,816 Continuation US7886839B2 (en) 2005-02-18 2009-08-12 Hand-held power tool with improved vibration-damped handle

Publications (1)

Publication Number Publication Date
US20060185867A1 true US20060185867A1 (en) 2006-08-24

Family

ID=36141904

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/326,046 Abandoned US20060185867A1 (en) 2005-02-18 2006-01-05 Hand-held power tool
US12/539,816 Active US7886839B2 (en) 2005-02-18 2009-08-12 Hand-held power tool with improved vibration-damped handle

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/539,816 Active US7886839B2 (en) 2005-02-18 2009-08-12 Hand-held power tool with improved vibration-damped handle

Country Status (4)

Country Link
US (2) US20060185867A1 (zh)
CN (1) CN1820903B (zh)
DE (1) DE102005007547A1 (zh)
GB (1) GB2423273B (zh)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080029282A1 (en) * 2004-04-30 2008-02-07 Makita Corporation Power Tool
US20080227373A1 (en) * 2007-03-16 2008-09-18 Zhang Qiang J Low vibration sander with a flexible top handle
JP2008264935A (ja) * 2007-04-20 2008-11-06 Makita Corp 手持ち工具のハンドル
US20090188689A1 (en) * 2008-01-24 2009-07-30 Black And Decker Inc. Hammer drill
US20090272553A1 (en) * 2006-11-03 2009-11-05 Uwe Engelfried Hand-held power tool with a vibration-damped handle with a switch
US20090283283A1 (en) * 2008-05-19 2009-11-19 Aeg Electric Tools Gmbh Vibration-damped holder for additional handle
US20090314507A1 (en) * 2008-06-19 2009-12-24 Makita Corporation Power tool
US20100012339A1 (en) * 2006-03-03 2010-01-21 Black And Decker Inc. Handle damping system
US20100025062A1 (en) * 2006-04-07 2010-02-04 Uwe Engelfried Handheld power tool with vibration-damped handle
US20100186979A1 (en) * 2007-06-20 2010-07-29 Jochen Krauter Machine hand tool housing unit
US20110120741A1 (en) * 2008-05-09 2011-05-26 Kurt Limberg Auxiliary handle for use with a power tool
US8443912B2 (en) 2007-02-15 2013-05-21 Hilti Aktiengesellschaft Hand-held power tool
US20140352994A1 (en) * 2013-05-29 2014-12-04 Makita Corporation Reciprocating power tool
US20150202764A1 (en) * 2014-01-23 2015-07-23 Black & Decker Inc. Rear handle
US20160361809A1 (en) * 2015-06-12 2016-12-15 Max Co., Ltd. Impact tool
JP2018058182A (ja) * 2016-10-07 2018-04-12 株式会社マキタ 打撃工具
US9993915B2 (en) 2014-01-23 2018-06-12 Black & Decker Inc. Rear handle
US10046451B2 (en) 2014-01-23 2018-08-14 Black & Decker Inc. Rear handle
US10137562B2 (en) 2014-01-23 2018-11-27 Black & Decker Inc. Rear handle
US10406668B2 (en) 2013-09-12 2019-09-10 Hilti Aktiengesellschaft Handheld power tool
US11077533B2 (en) 2008-05-09 2021-08-03 Milwaukee Electric Tool Corporation Power tool dust collector
US11084006B2 (en) 2017-03-23 2021-08-10 Milwaukee Electric Tool Corporation Mud mixer
US20220241950A1 (en) * 2021-02-04 2022-08-04 Makita Corporation Power tool having hammer mechanism
US20220266433A1 (en) * 2021-02-22 2022-08-25 Makita Corporation Power tool having a hammer mechanism
US11759938B2 (en) 2021-10-19 2023-09-19 Makita Corporation Impact tool

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0804963D0 (en) * 2008-03-18 2008-04-16 Black & Decker Inc Hammer
US20090321101A1 (en) * 2008-06-26 2009-12-31 Makita Corporation Power tool
DE102009002463A1 (de) * 2009-04-17 2010-10-21 Hilti Aktiengesellschaft Seitenhandgriff
JP5395531B2 (ja) * 2009-06-19 2014-01-22 株式会社マキタ 作業工具
DE102010038753A1 (de) * 2010-08-02 2012-02-02 Robert Bosch Gmbh Antivibrationshandgriff mit auf Zug belasteter Schaltverbindung
GB201112833D0 (en) * 2011-07-26 2011-09-07 Black & Decker Inc A hammer drill
US9010452B2 (en) 2011-10-13 2015-04-21 Susan J. Williamson Vibration dampening system for a handle of a machine that vibrates, and method of dampening vibrations produced by a machine
US9849577B2 (en) 2012-02-03 2017-12-26 Milwaukee Electric Tool Corporation Rotary hammer
US9308636B2 (en) 2012-02-03 2016-04-12 Milwaukee Electric Tool Corporation Rotary hammer with vibration dampening
US9808925B2 (en) * 2012-03-22 2017-11-07 Hitachi Koki Co., Ltd. Impact tool
DE102012103587A1 (de) * 2012-04-24 2013-10-24 C. & E. Fein Gmbh Handführbare Werkzeugmaschine mit Außengehäuse
EP2969342B1 (en) * 2013-03-14 2021-05-12 Robert Bosch GmbH Power hand tool with vibration isolation
JP6278830B2 (ja) * 2014-05-16 2018-02-14 株式会社マキタ 打撃工具
CN104653115A (zh) * 2015-01-26 2015-05-27 张启志 一种建筑用安全型冲击钻
DE102017202371A1 (de) * 2017-02-15 2018-08-16 Robert Bosch Gmbh Handwerkzeugmaschine
DE102018203179A1 (de) * 2018-03-02 2019-09-05 Robert Bosch Gmbh Vorrichtung, insbesondere Handwerkzeugmaschinen-Verwaltungsvorrichtung, und Verfahren zur Überwachung und/oder zur Verwaltung einer Vielzahl von Gegenständen
CN109333459B (zh) * 2018-08-18 2021-08-17 浙江信普工贸有限公司 一种减震电锤
JP1710821S (ja) * 2021-08-05 2022-03-25 携帯用電気ハンマードリル本体

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576241A (en) * 1983-02-03 1986-03-18 Henri Emonet Tool assembly and handle assembly therefor
US5025870A (en) * 1988-11-19 1991-06-25 Hilti Aktiengesellschaft Hand-held tool with displaceable spring loaded handle
US20010011846A1 (en) * 2000-02-04 2001-08-09 Harald Krondorfer Hand power tool with at least one handle
US20040040729A1 (en) * 2001-07-24 2004-03-04 Gerhard Meixner Hand-held machine tool with vibration-damped handle
US7100706B2 (en) * 2001-04-11 2006-09-05 Robert Bosch Gmbh Hand tool machine comprising a vibration-dampened handle

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752856U (de) * 1956-12-17 1957-09-26 Alfred Dr Volk Leitkarte mit verschiebbaren sichthuelsen.
DE1752856A1 (de) 1968-07-26 1971-04-08 Metabowerke Kg Schlagbohrgeraet
US3728793A (en) * 1971-04-15 1973-04-24 Fullerton A M Chain saw with damping means
US4290492A (en) * 1979-01-31 1981-09-22 Black & Decker Inc. Idling and air replenishing system for a reciprocating hammer mechanism
US4287785A (en) * 1979-12-12 1981-09-08 Hunt Robert T Throttle setting device
DE3312195A1 (de) * 1983-04-02 1984-10-11 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen Handgefuehrter schlag- und bohrhammer
DE3410669A1 (de) * 1984-03-23 1985-10-24 Metabowerke GmbH & Co, 7440 Nürtingen Daempfungselement und dessen einbau in ein motorisch angetriebenes handwerkzeug
SE467690B (sv) * 1990-12-11 1992-08-31 Atlas Copco Tools Ab Vibrationsisolerat verktygshandtag
US5345684A (en) * 1993-01-25 1994-09-13 Wci Outdoor Products, Inc. Flexible line trimmer having an anti-vibration handle
DE9313602U1 (de) * 1993-09-09 1993-12-23 Gobbers Walter Zweifach-Werkzeugträger für Handbohrmaschinen
SE504957C2 (sv) * 1994-02-28 1997-06-02 Berema Atlas Copco Ab Maskinspett med handtagsförsett bakstycke
US5893295A (en) * 1997-07-24 1999-04-13 Bronnert; Hervex. Motorcycle cruise control
DE19745306C2 (de) * 1997-10-14 1999-09-09 Fein C & E Handgriffanordnung für einen Winkelschleifer
USD411426S (en) * 1997-11-17 1999-06-22 Kabushiki Kaisha Ogura Spike puller
DE19854468A1 (de) * 1998-11-25 2000-06-08 Flex Elektrowerkzeuge Gmbh Handwerkzeugmaschine
DE10011161A1 (de) * 2000-03-12 2001-09-13 Rodcraft Pneumatic Tools Gmbh Schleifgerät mit Einhandbedienung
USD447032S1 (en) * 2000-04-19 2001-08-28 Robert Bosch Gmbh Hammer drill
DE10034768A1 (de) * 2000-07-18 2002-02-07 Bosch Gmbh Robert Elektrokombihammer
USD463238S1 (en) * 2000-09-20 2002-09-24 Robert Bosch Gmbh Hand grip
US6834565B2 (en) * 2000-09-29 2004-12-28 The Children's Hospital Of Philadelphia Retrofit safety handlebar
USD467484S1 (en) * 2000-11-17 2002-12-24 Robert Bosch Gmbh Hand grip
DE10118037A1 (de) * 2001-04-11 2002-10-17 Bosch Gmbh Robert Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff
DE10138123A1 (de) * 2001-08-03 2003-02-27 Bosch Gmbh Robert Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff
DE10158266B4 (de) * 2001-11-28 2004-01-15 Robert Bosch Gmbh Vorrichtung zur Vibrationsdämpfung eines Handgriffs einer Werkzeugmaschine
US6978694B2 (en) * 2002-12-06 2005-12-27 Magneti Marelli Powertrain U.S.A., Inc. Handlebar throttle controller with hysteresis
USD492177S1 (en) * 2003-02-21 2004-06-29 Black & Decker Inc. Handle for power tool
US7204169B2 (en) * 2003-04-10 2007-04-17 Ross Mitchell Gear shifting mechanism
US7100931B2 (en) * 2004-06-25 2006-09-05 Hong Jiun Gu Rotation control brake system
TWI261038B (en) * 2004-08-11 2006-09-01 Bo-Cheng Chen Bicycle gear-shifting handgrip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576241A (en) * 1983-02-03 1986-03-18 Henri Emonet Tool assembly and handle assembly therefor
US5025870A (en) * 1988-11-19 1991-06-25 Hilti Aktiengesellschaft Hand-held tool with displaceable spring loaded handle
US20010011846A1 (en) * 2000-02-04 2001-08-09 Harald Krondorfer Hand power tool with at least one handle
US7100706B2 (en) * 2001-04-11 2006-09-05 Robert Bosch Gmbh Hand tool machine comprising a vibration-dampened handle
US20040040729A1 (en) * 2001-07-24 2004-03-04 Gerhard Meixner Hand-held machine tool with vibration-damped handle

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080029282A1 (en) * 2004-04-30 2008-02-07 Makita Corporation Power Tool
US7604071B2 (en) * 2004-04-30 2009-10-20 Makita Corporation Power tool with vibration reducing means
US20100012339A1 (en) * 2006-03-03 2010-01-21 Black And Decker Inc. Handle damping system
US7921935B2 (en) * 2006-04-07 2011-04-12 Robert Bosch Gmbh Handheld power tool with vibration-damped handle
US20100025062A1 (en) * 2006-04-07 2010-02-04 Uwe Engelfried Handheld power tool with vibration-damped handle
US7971656B2 (en) * 2006-11-03 2011-07-05 Robert Bosch Gmbh Hand-held power tool with a vibration-damped handle with a switch
US20090272553A1 (en) * 2006-11-03 2009-11-05 Uwe Engelfried Hand-held power tool with a vibration-damped handle with a switch
US8443912B2 (en) 2007-02-15 2013-05-21 Hilti Aktiengesellschaft Hand-held power tool
US8100745B2 (en) * 2007-03-16 2012-01-24 Black & Decker Inc. Low vibration sander with a flexible top handle
US20080227373A1 (en) * 2007-03-16 2008-09-18 Zhang Qiang J Low vibration sander with a flexible top handle
JP2008264935A (ja) * 2007-04-20 2008-11-06 Makita Corp 手持ち工具のハンドル
US20100186979A1 (en) * 2007-06-20 2010-07-29 Jochen Krauter Machine hand tool housing unit
US20090188689A1 (en) * 2008-01-24 2009-07-30 Black And Decker Inc. Hammer drill
US8430181B2 (en) * 2008-01-24 2013-04-30 Black & Decker Inc. Hammer drill
US11883917B2 (en) 2008-05-09 2024-01-30 Milwaukee Electric Tool Corporation Power tool dust collector
US20110120741A1 (en) * 2008-05-09 2011-05-26 Kurt Limberg Auxiliary handle for use with a power tool
US11077533B2 (en) 2008-05-09 2021-08-03 Milwaukee Electric Tool Corporation Power tool dust collector
US8813868B2 (en) 2008-05-09 2014-08-26 Milwaukee Electric Tool Corporation Auxiliary handle for use with a power tool
US20090283283A1 (en) * 2008-05-19 2009-11-19 Aeg Electric Tools Gmbh Vibration-damped holder for additional handle
US8256528B2 (en) * 2008-05-19 2012-09-04 Aeg Electric Tools Gmbh Vibration-damped holder for additional handle
US8403076B2 (en) * 2008-06-19 2013-03-26 Makita Corporation Power tool
US20090314507A1 (en) * 2008-06-19 2009-12-24 Makita Corporation Power tool
US20140352994A1 (en) * 2013-05-29 2014-12-04 Makita Corporation Reciprocating power tool
US9782885B2 (en) * 2013-05-29 2017-10-10 Makita Corporation Reciprocating power tool
US10406668B2 (en) 2013-09-12 2019-09-10 Hilti Aktiengesellschaft Handheld power tool
US9993915B2 (en) 2014-01-23 2018-06-12 Black & Decker Inc. Rear handle
US10040184B2 (en) * 2014-01-23 2018-08-07 Black & Decker Inc. Rear handle
US10046451B2 (en) 2014-01-23 2018-08-14 Black & Decker Inc. Rear handle
US10137562B2 (en) 2014-01-23 2018-11-27 Black & Decker Inc. Rear handle
US20150202764A1 (en) * 2014-01-23 2015-07-23 Black & Decker Inc. Rear handle
US20160361809A1 (en) * 2015-06-12 2016-12-15 Max Co., Ltd. Impact tool
US10646986B2 (en) * 2015-06-12 2020-05-12 Max Co., Ltd. Impact tool
JP2018058182A (ja) * 2016-10-07 2018-04-12 株式会社マキタ 打撃工具
US11084006B2 (en) 2017-03-23 2021-08-10 Milwaukee Electric Tool Corporation Mud mixer
US20220241950A1 (en) * 2021-02-04 2022-08-04 Makita Corporation Power tool having hammer mechanism
US20220266433A1 (en) * 2021-02-22 2022-08-25 Makita Corporation Power tool having a hammer mechanism
US11759938B2 (en) 2021-10-19 2023-09-19 Makita Corporation Impact tool
US11919138B2 (en) * 2021-10-19 2024-03-05 Makita Corporation Impact tool

Also Published As

Publication number Publication date
US20090294144A1 (en) 2009-12-03
CN1820903A (zh) 2006-08-23
US7886839B2 (en) 2011-02-15
DE102005007547A1 (de) 2006-08-31
GB0603072D0 (en) 2006-03-29
CN1820903B (zh) 2011-04-13
GB2423273B (en) 2007-10-17
GB2423273A (en) 2006-08-23

Similar Documents

Publication Publication Date Title
US7886839B2 (en) Hand-held power tool with improved vibration-damped handle
JP4461046B2 (ja) 往復作動式作業工具
JP5513562B2 (ja) ハンドル防振装置
JP5171397B2 (ja) 手持式作業工具
US20040154813A1 (en) Vibration-decoupling arrangement for supporting a percussion unit in a hand-held percussion power tool
CN101244556B (zh) 手持式工具机
US8914947B2 (en) Handle arrangement
CN101005928B (zh) 具有一个振动隔离单元的手操作式工具机把手装置
US8061438B2 (en) Hand-held power tool with a vibration-damped handle
EP1690640B1 (en) Hand-held hammer machine
AU2014365337B2 (en) Oscillating mechanism for a power tool
CN101535005B (zh) 具有设有开关的减振手把的手持式工具机
EP1690646B1 (en) Hand-held hammer machine
CN101903136A (zh) 具有消振单元的手持式电动工具、尤其是锤钻和/或锤凿
BR102012013240B1 (pt) ferramenta elétrica
US20090056965A1 (en) Vibrating hand-held power tool with a locking switch for the motor switch
JP2007015062A (ja) 振動ドリル
JP2003159615A (ja) 同一平面鋸刃を備えるレシプロソー
JP2005074573A (ja) 往復作動式作業工具
JP2009023085A (ja) 打撃機構を備えた手持ち式工具装置
US20080047720A1 (en) Hand-held power tool with an air spring percussion mechanism having a crank drive
US4458416A (en) Vibration damped portable impact tool
AU2010346045B9 (en) Handle arrangement
GB2423045A (en) Hammer with adjustable amplitude of oscillation

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROBERT BOSCH GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FRAUHAMMER, KARL;MEIXNER, GERHARD;ROEHM, HEIKO;AND OTHERS;REEL/FRAME:017242/0377;SIGNING DATES FROM 20051124 TO 20051208

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION