ES408120A1 - Portable electric impact tool - Google Patents

Portable electric impact tool

Info

Publication number
ES408120A1
ES408120A1 ES408120A ES408120A ES408120A1 ES 408120 A1 ES408120 A1 ES 408120A1 ES 408120 A ES408120 A ES 408120A ES 408120 A ES408120 A ES 408120A ES 408120 A1 ES408120 A1 ES 408120A1
Authority
ES
Spain
Prior art keywords
gear
spindle
intermediate shaft
balls
way
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.)
Expired
Application number
ES408120A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of ES408120A1 publication Critical patent/ES408120A1/en
Expired legal-status Critical Current

Links

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
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • 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
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/062—Cam-actuated impulse-driving mechanisms
    • B25D2211/064—Axial cams, e.g. two camming surfaces coaxial with drill spindle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19293—Longitudinally slidable
    • Y10T74/19298—Multiple spur gears
    • Y10T74/19307—Selective
    • Y10T74/19312—Direct clutch and drive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19377—Slidable keys or clutches
    • Y10T74/19414—Single clutch shaft
    • Y10T74/19419—Progressive
    • Y10T74/19442—Single key
    • Y10T74/19447—Clutch and ratchet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19377—Slidable keys or clutches
    • Y10T74/19414—Single clutch shaft
    • Y10T74/19419—Progressive
    • Y10T74/19442—Single key
    • Y10T74/19451—Spur gears
    • Y10T74/1946—Sliding clutch carrier

Abstract

A portable electric impact drill, wrench or an analogous power tool wherein the motor shaft drives the intermediate shaft of a two-speed transmission which rotates the tool spindle. The transmission has a first gear rigid with the intermediate shaft and meshing with a second gear which is rotatable on the tool spindle but can drive the spindle by way of an overrunning clutch when the spindle is to rotate at the lower of two speeds. A third gear which is rigid with the spindle meshes with a fourth gear which is rotatable and axially movable on the intermediate shaft. The latter has a transverse bore for two balls which are biased apart by a helical spring to bear against the internal surface of the fourth gear. This fourth gear has an axial bore including a larger-diameter portion which receives portions of the balls in one axial position of the fourth gear whereby the intermediate shaft can rotate relative to the fourth gear to drive the spindle by way of the first and second gears and the overrunning clutch. A smaller-diameter portion of the axial bore in the fourth gear communicates with two axially parallel grooves which receive portions of the balls in a second axial position of the fourth gear whereby the latter drives the spindle by way of the third gear. The overrunning clutch then enables the spindle to rotate relative to the second gear.
ES408120A 1971-11-02 1972-10-30 Portable electric impact tool Expired ES408120A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19717141263U DE7141263U (en) 1971-11-02 1971-11-02 POWER TOOL IN PARTICULAR ELECTRIC IMPACT DRILL

Publications (1)

Publication Number Publication Date
ES408120A1 true ES408120A1 (en) 1975-10-01

Family

ID=6624841

Family Applications (1)

Application Number Title Priority Date Filing Date
ES408120A Expired ES408120A1 (en) 1971-11-02 1972-10-30 Portable electric impact tool

Country Status (10)

Country Link
US (1) US3808904A (en)
JP (1) JPS5642403B2 (en)
AU (1) AU459897B2 (en)
BR (1) BR7207551D0 (en)
CH (1) CH546131A (en)
DE (1) DE7141263U (en)
ES (1) ES408120A1 (en)
FR (1) FR2159985A5 (en)
GB (1) GB1352958A (en)
IT (1) IT970080B (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2328462C2 (en) * 1973-06-05 1985-08-29 Robert Bosch Gmbh, 7000 Stuttgart Impact drill
SU1038476A2 (en) * 1980-06-23 1983-08-30 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента Вибраторов И Строительно-Отделочных Машин Rotary percussive tool
US4710071A (en) * 1986-05-16 1987-12-01 Black & Decker Inc. Family of electric drills and two-speed gear box therefor
JP2558753Y2 (en) * 1991-10-31 1998-01-14 株式会社マキタ Power transmission mechanism for rotary electric tools
US5628374A (en) * 1994-09-26 1997-05-13 Black & Decker Inc. Hammer drill with inclined clutch plate
GB9621202D0 (en) * 1996-10-11 1996-11-27 Black & Decker Inc Mode change switch
KR100353199B1 (en) * 2000-05-25 2002-09-18 윤경국 Electric hammers of a nail to construct and building
US6733414B2 (en) 2001-01-12 2004-05-11 Milwaukee Electric Tool Corporation Gear assembly for a power tool
TWM262286U (en) * 2004-04-15 2005-04-21 Lee Yeong Ind Co Ltd Improved structure for machine with drilling and tapping functions
CN2752589Y (en) * 2004-11-03 2006-01-18 张宝书 Portable power-driving grease gun
US7314097B2 (en) * 2005-02-24 2008-01-01 Black & Decker Inc. Hammer drill with a mode changeover mechanism
JP4593387B2 (en) * 2005-07-04 2010-12-08 株式会社マキタ Electric tool
US7980324B2 (en) 2006-02-03 2011-07-19 Black & Decker Inc. Housing and gearbox for drill or driver
ES2308666T3 (en) 2006-05-19 2008-12-01 BLACK & DECKER, INC. WORKING MODE CHANGE MECHANISM FOR A MOTOR TOOL.
JP5064780B2 (en) * 2006-12-12 2012-10-31 株式会社マキタ Screw driver
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US8739417B2 (en) * 2008-06-10 2014-06-03 Makita Corporation Circular saw
JP5435899B2 (en) * 2008-06-10 2014-03-05 株式会社マキタ Circular saw
JP5017187B2 (en) * 2008-06-10 2012-09-05 株式会社マキタ Power tool
CN102056714B (en) * 2008-06-10 2013-11-27 株式会社牧田 Power tool
JP5017185B2 (en) * 2008-06-10 2012-09-05 株式会社マキタ Power tool
JP5017188B2 (en) * 2008-06-10 2012-09-05 株式会社マキタ Power tool
JP5435900B2 (en) * 2008-06-10 2014-03-05 株式会社マキタ Circular saw
JP5017186B2 (en) * 2008-06-10 2012-09-05 株式会社マキタ Power tool
DE102008050703B3 (en) * 2008-10-07 2009-12-31 Wacker Neuson Se Implement with overrunning clutch
US8172004B2 (en) 2009-08-05 2012-05-08 Techtronic Power Tools Technology Limited Automatic transmission for a power tool
DE102010000722A1 (en) * 2010-01-07 2011-07-14 Robert Bosch GmbH, 70469 Hand machine tool device
CN101758486B (en) * 2010-01-21 2011-09-28 浙江海王电器有限公司 Light single-button multifunctional electric hammer
DE202010012253U1 (en) * 2010-09-07 2010-11-18 Robert Bosch Gmbh Machine tool, in particular hand tool
WO2012061176A2 (en) 2010-11-04 2012-05-10 Milwaukee Electric Tool Corporation Impact tool with adjustable clutch
US8448535B2 (en) * 2011-04-19 2013-05-28 Ching-Yi Wang Multiple-angle transmission apparatus
JP2013151055A (en) * 2012-01-26 2013-08-08 Makita Corp Striking tool
US11110572B2 (en) * 2019-04-24 2021-09-07 Hsieh Yuan Liao Connecting shaft structure of electric screwdriver
US11318596B2 (en) * 2019-10-21 2022-05-03 Makita Corporation Power tool having hammer mechanism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US850257A (en) * 1906-10-20 1907-04-16 Charles H Schabinger Gear-transmission mechanism.
US1081092A (en) * 1911-02-16 1913-12-09 John Chalmers Transmission-gearing.
US1564667A (en) * 1924-02-20 1925-12-08 Waldo J Guild Gearing for power transmission
US2557799A (en) * 1948-08-23 1951-06-19 Salmivuori Johannes Erkki Hydraulic drive mechanism
US3133450A (en) * 1962-08-30 1964-05-19 Black & Decker Mfg Co Two-speed transmission for portable electric tool
US3178955A (en) * 1963-06-20 1965-04-20 Black & Decker Mfg Co Manually-manipulatable shifting means for two-speed power tool

Also Published As

Publication number Publication date
AU459897B2 (en) 1975-04-10
BR7207551D0 (en) 1973-08-21
DE7141263U (en) 1973-04-19
CH546131A (en) 1974-02-28
FR2159985A5 (en) 1973-06-22
AU4841072A (en) 1974-05-02
US3808904A (en) 1974-05-07
IT970080B (en) 1974-04-10
JPS5642403B2 (en) 1981-10-05
JPS4853383A (en) 1973-07-26
GB1352958A (en) 1974-05-15

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