EP1862265A2 - Machine-outil manuelle dotée d'un dispositif d'accouplement à patinage - Google Patents

Machine-outil manuelle dotée d'un dispositif d'accouplement à patinage Download PDF

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Publication number
EP1862265A2
EP1862265A2 EP07108136A EP07108136A EP1862265A2 EP 1862265 A2 EP1862265 A2 EP 1862265A2 EP 07108136 A EP07108136 A EP 07108136A EP 07108136 A EP07108136 A EP 07108136A EP 1862265 A2 EP1862265 A2 EP 1862265A2
Authority
EP
European Patent Office
Prior art keywords
axially
sleeve
hand tool
control
drive sleeve
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.)
Withdrawn
Application number
EP07108136A
Other languages
German (de)
English (en)
Other versions
EP1862265A3 (fr
Inventor
Markus Hartmann
Manfred Ludwig
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP1862265A2 publication Critical patent/EP1862265A2/fr
Publication of EP1862265A3 publication Critical patent/EP1862265A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B25D16/003—Clutches specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • B25B21/026—Impact clutches
    • 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
    • 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
    • B25D2216/00—Details of 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • 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
    • B25D2217/0011—Details of anvils, guide-sleeves or pistons
    • B25D2217/0019—Guide-sleeves
    • 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
    • B25D2250/045—Cams used in percussive tools
    • 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
    • B25D2250/165—Overload clutches, torque limiters
    • 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
    • B25D2250/321—Use of balls

Definitions

  • the invention refers to an at least partially rotating and axially striking hand tool such as a combination hammer with a, a gas spring having impact mechanism and arranged on the guide tube of the gas spring slip clutch.
  • slip clutch safety clutch When designed as a slip clutch safety clutch, the separation of the power flow occurs as soon as an allowable limit torque is exceeded. If the slip clutch is also designed as a frictionally engaged detent coupling, in the event of a tool blockage during repeated engagement of the force flow, respectively, torque fluctuations are generated which can contribute to a breakage of the drill head from the entanglement, wherein the torque fluctuations must be absorbed by the user substantially.
  • another safety clutch is also designed as an electronically controlled magnetic coupling and arranged in the power flow before the transmission gear behind the high-speed motor, where much lower dome torques occur.
  • EP1207018 is in a rotating and axially striking hand tool a safety clutch designed as an electronically controlled magnetic coupling and arranged in the power flow before the transmission gear directly behind the fast-rotating motor.
  • a sliding clutch comprising the rotatable guide tube has a drive sleeve rotatably driven by a bevel pinion and an inner cone sleeve axially prestressed with a compression spring which presses radially displaceable balls in rotational receiving holes of the drive sleeve inward into suitable ball hollows of the guide tube.
  • DE10033100 has a rotating and axially striking hand tool on a striking mechanism with a rotating guide tube, in which a percussion piston is driven axially striking a gas spring, wherein the guide tube comprehensive, with cam axially toothed slip clutch has a driven by a bevel pinion drive sleeve and an output sleeve, the are biased axially against each other with a spring, wherein the output sleeve is axially displaceable rotatably connected to the guide tube.
  • the object of the invention is the realization of a rotating and axially striking hand tool, which generates tangential impact pulses in the appropriate use case.
  • an at least partially rotating and axially striking hand tool a percussion with a guide tube in which a percussion piston is driven axially striking a gas spring, and a rotationally driven
  • the guide tube comprehensive, with cam axially toothed slip clutch with a drive sleeve and output sleeve on each other are pressure-biased axially with a spring, wherein the drive sleeve with a coaxial to this control sleeve via balls, which in each case partially engage in two partially oppositely arranged control contours of the drive sleeve and the control sleeve, positively connected and so positively constrained, that, when a limit torque is exceeded, the axially axially biased with the spring drive sleeve relative to the control sleeve axially offset and rotated.
  • the first control contour is formed as a (with respect to the ball) wide pocket with at least one axially inclined leg and the second control contour as an at least partially axially opposite obliquely (more advantageously same amount as the leg) extending, elongated groove, whereby on the opposing gradients of the leg and the groove, the limit torque is defined, in which the tangential impact begins by the drive sleeve within the free space of the wide pocket is forcibly accelerated by the now possible relaxation of the spring and tangentially strikes against the output sleeve.
  • the first control contour is formed as a triangular pocket with axially spring-side tip and two axially obliquely extending leg and the second control contour as an axially opposite V-shaped angled oblique, elongated groove, whereby in both directions of rotation of the tool holder when exceeding a limit torque each Tangentialschlagimpulse be generated, which is advantageous for solving a permanent tool blockage.
  • control sleeve is arranged coaxially within the drive sleeve, whereby the drive sleeve with the cam with respect to the outside slip clutch is exposed.
  • the output sleeve is directly, advantageously one piece, connected to the tool holder, whereby the tangential impact pulses are transmitted to the rotary impact tool with minimal damping.
  • the torque-transmitting flank surfaces of the cams of the drive sleeve and the output sleeve of the axially toothed slip clutch are each oriented exactly tangentially, so that no radial or axial force components occur in the engaged state during rotational engagement.
  • At least two circumferentially symmetrically distributed cams per drive sleeve and output sleeve are present, whereby no axial bending moment is generated upon rotational driving.
  • a further safety clutch further advantageously designed as an electronically controlled magnetic coupling, arranged in the power flow between the driving motor and the transmission gear, which is further advantageously designed as a bevel gear, whereby the power flow is redundantly interruptible in the event of a tool blockage.
  • different criteria can be used to trigger both clutches, for example, different high limit torques occurring at the rotary impact tool or calculated Grenzausschitch of the housing.
  • the output sleeve 12 is integrally formed directly connected to the tool holder 3.
  • another safety clutch 17 is arranged in the form of an electronically controlled magnetic coupling.
  • the drive sleeve 11 is connected in a form-locking manner to the control sleeve 14, which is coaxial to the latter, via balls 18 which in each case partially engage in two control contours 19a, 19b of the drive sleeve 11 and the control sleeve 14 arranged partially opposite one another.
  • control cam 14 formed by the first control contour 19a (shown in phantom, because of the cut-away part) as a respect to the ball 18 wide triangular pocket with axial spring-side tip and each obliquely extending legs and formed formed by the drive sleeve 11 second control contour 19b formed as an axially opposite V-shaped angled groove, the same amount as the legs axially opposite to each other obliquely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
EP07108136A 2006-05-30 2007-05-14 Machine-outil manuelle dotée d'un dispositif d'accouplement à patinage Withdrawn EP1862265A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006000252A DE102006000252A1 (de) 2006-05-30 2006-05-30 Handwerkzeugmaschine mit Rutschkupplung

Publications (2)

Publication Number Publication Date
EP1862265A2 true EP1862265A2 (fr) 2007-12-05
EP1862265A3 EP1862265A3 (fr) 2013-01-02

Family

ID=38457708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108136A Withdrawn EP1862265A3 (fr) 2006-05-30 2007-05-14 Machine-outil manuelle dotée d'un dispositif d'accouplement à patinage

Country Status (3)

Country Link
US (1) US7861797B2 (fr)
EP (1) EP1862265A3 (fr)
DE (1) DE102006000252A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109246A1 (fr) * 2008-03-03 2009-09-11 Robert Bosch Gmbh Machine-outil portative
DE102010062014B3 (de) * 2010-11-26 2012-05-10 Hilti Aktiengesellschaft Handwerkzeugmaschine

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SE532395C2 (sv) * 2008-05-08 2010-01-12 Atlas Copco Tools Ab Kraftverktyg för åtdragning av skruvförband samt frikoppling
EP2138273B1 (fr) * 2008-06-25 2012-02-15 Robert Bosch GmbH Outil rotatif disposant d'un mécanisme à cliquet manuel
JP5395620B2 (ja) 2009-11-02 2014-01-22 株式会社マキタ 打撃工具
CN101949260B (zh) * 2010-07-22 2013-07-24 浙江师范大学 一种储能后释放的冲击锤的辅锤机构及储能式冲击锤
CN102371573A (zh) * 2010-08-10 2012-03-14 南京德朔实业有限公司 电动工具
JP2012223844A (ja) * 2011-04-18 2012-11-15 Makita Corp ハンマドリル
DE102011080800A1 (de) * 2011-08-11 2013-02-14 Hilti Aktiengesellschaft Handwerkzeugmaschine
DE102011081617A1 (de) * 2011-08-26 2013-02-28 Hilti Aktiengesellschaft Handgehaltene Werkzeugmaschine
DE102012013934A1 (de) * 2012-07-16 2014-01-16 Krohne Ag Verfahren zum Betreiben einer Einstellvorrichtung
EP2979819A4 (fr) * 2013-03-26 2016-11-16 Hitachi Koki Kk Outil électrique
US20160207187A1 (en) * 2013-08-30 2016-07-21 Hitachi Koki Co., Ltd. Drilling Device
EP2857149A1 (fr) * 2013-10-03 2015-04-08 HILTI Aktiengesellschaft Machine-outil manuelle
GB201421576D0 (en) 2014-12-04 2015-01-21 Black & Decker Inc Drill
GB201421577D0 (en) * 2014-12-04 2015-01-21 Black & Decker Inc Drill
US10149433B2 (en) * 2015-07-10 2018-12-11 Combined Manufacturing Inc. Combination blade and cord weed cutter-trimmer head device
EP3117962A1 (fr) * 2015-07-17 2017-01-18 HILTI Aktiengesellschaft Machine-outil portative
US10406667B2 (en) * 2015-12-10 2019-09-10 Black & Decker Inc. Drill
GB2545237A (en) 2015-12-10 2017-06-14 Black & Decker Inc Planetray gear system
CN107914248A (zh) * 2018-01-12 2018-04-17 江苏恒丰电动工具有限公司 一种移动式拨扭
US11529727B2 (en) 2019-10-21 2022-12-20 Makita Corporation Power tool having hammer mechanism
US12434340B2 (en) 2021-05-19 2025-10-07 Gary Lee Ward Concentrated longitudinal acoustical/ultrasonic energy fastener design and manipulation system having at least one or a plurality of flexible ultrasonic joints
US11890728B2 (en) 2021-05-19 2024-02-06 Nextgen Aerospace Technologies, Llc Concentrated longitudinal acoustical/ultrasonic energy fastener design and manipulation system
US11872680B2 (en) 2021-07-16 2024-01-16 Black & Decker Inc. Impact power tool
US12415259B2 (en) * 2023-08-02 2025-09-16 Black & Decker Inc. Impact power tool and impact mechanism

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GB2427006A (en) * 2005-06-10 2006-12-13 Black & Decker Inc Overload clutch with two predetermined torque levels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109246A1 (fr) * 2008-03-03 2009-09-11 Robert Bosch Gmbh Machine-outil portative
DE102010062014B3 (de) * 2010-11-26 2012-05-10 Hilti Aktiengesellschaft Handwerkzeugmaschine
EP2457694A2 (fr) 2010-11-26 2012-05-30 HILTI Aktiengesellschaft Outil électrique
US8950508B2 (en) 2010-11-26 2015-02-10 Hilti Aktiengesellschaft Handheld power tool

Also Published As

Publication number Publication date
US7861797B2 (en) 2011-01-04
EP1862265A3 (fr) 2013-01-02
DE102006000252A1 (de) 2007-12-06
US20070289759A1 (en) 2007-12-20

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