WO2009027821A3 - Power tool and transmission mechanism - Google Patents

Power tool and transmission mechanism Download PDF

Info

Publication number
WO2009027821A3
WO2009027821A3 PCT/IB2008/002307 IB2008002307W WO2009027821A3 WO 2009027821 A3 WO2009027821 A3 WO 2009027821A3 IB 2008002307 W IB2008002307 W IB 2008002307W WO 2009027821 A3 WO2009027821 A3 WO 2009027821A3
Authority
WO
WIPO (PCT)
Prior art keywords
gear
planetary gear
power tool
ring gear
sun
Prior art date
Application number
PCT/IB2008/002307
Other languages
French (fr)
Other versions
WO2009027821A2 (en
Inventor
Fumiaki Sekino
Original Assignee
Panasonic Elec Works Co Ltd
Fumiaki Sekino
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 Panasonic Elec Works Co Ltd, Fumiaki Sekino filed Critical Panasonic Elec Works Co Ltd
Publication of WO2009027821A2 publication Critical patent/WO2009027821A2/en
Publication of WO2009027821A3 publication Critical patent/WO2009027821A3/en

Links

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
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/58—Gearings having only two central gears, connected by orbital gears with sets of orbital gears, each consisting of two or more intermeshing orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/64—Gearings having three or more central gears composed of a number of gear trains, the drive always passing through all the trains, each train having not more than one connection for driving another train
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Transmission Devices (AREA)
  • Drilling And Boring (AREA)
  • Retarders (AREA)
  • Structure Of Transmissions (AREA)

Abstract

In a power tool including at least one planetary gear mechanisms interposed between a motor and an output shaft, the planetary gear mechanism includes a sun gear and a ring gear for transmitting rotation from the motor to the output shaft. An inner and an outer planetary gear are interposed in engaged state between the sun gear and the ring gear. A carrier holds the inner planetary gear and the outer planetary gear so as to rotate freely. A switching mechanism has a switching member installed so as to be slidable in an axial direction. By the movement of the switching member, the switching mechanism switches between a reduction state in which rotation is transmitted from the sun gear to the ring gear via the inner planetary gear and the outer planetary gear, and a non-reduction state in which the sun gear and the ring gear rotate as one body.
PCT/IB2008/002307 2007-08-28 2008-08-27 Power tool and transmission mechanism WO2009027821A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007221008 2007-08-28
JP2007-221008 2007-08-28

Publications (2)

Publication Number Publication Date
WO2009027821A2 WO2009027821A2 (en) 2009-03-05
WO2009027821A3 true WO2009027821A3 (en) 2009-06-04

Family

ID=40317038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/002307 WO2009027821A2 (en) 2007-08-28 2008-08-27 Power tool and transmission mechanism

Country Status (2)

Country Link
JP (1) JP4900340B2 (en)
WO (1) WO2009027821A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102971115A (en) * 2010-04-29 2013-03-13 喜利得股份公司 A power tool

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE441045T1 (en) 2006-04-30 2009-09-15 Tomactech As TRANSMISSION
CN102148548B (en) 2010-02-09 2015-05-06 德昌电机(深圳)有限公司 Motor component used for medical appliance
JP5693211B2 (en) * 2010-12-27 2015-04-01 株式会社マキタ Work tools
US9233461B2 (en) 2012-02-27 2016-01-12 Black & Decker Inc. Tool having multi-speed compound planetary transmission
JP6345974B2 (en) * 2014-04-25 2018-06-20 アクア株式会社 Drum washing machine
DE102016224245A1 (en) * 2016-12-06 2018-06-07 Robert Bosch Gmbh Hand tool with a spring detent mechanism
FR3072746B1 (en) * 2017-10-20 2021-02-12 Bernard Controls EPICYCLOIDAL TRAIN ADVANTAGEALLY FOR A SERVOMOTOR SYSTEM, PROCESS AND SERVOMOTOR SYSTEM USING SUCH EPICYCLOIDAL TRAIN
JP7297448B2 (en) * 2019-01-09 2023-06-26 株式会社マキタ Electric tool
JP7217077B2 (en) * 2019-04-16 2023-02-02 株式会社マキタ screw tightening tool
FR3128503B1 (en) 2021-10-21 2024-01-12 Bernard Controls Mechanical power transmission module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB184070A (en) * 1919-02-28 1922-08-10 Andrew Jacob Karl Change speed gear
US2339269A (en) * 1942-03-07 1944-01-18 Studebaker Corp Transmission
US2600762A (en) * 1951-08-04 1952-06-17 Jack & Heintz Prec Ind Inc Starter generator
US4274304A (en) * 1978-03-29 1981-06-23 Cooper Industries, Inc. In-line reversing mechanism
JPH079357A (en) * 1993-06-24 1995-01-13 Matsushita Electric Works Ltd Speed reducer with transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2530638B2 (en) * 1987-01-27 1996-09-04 松下電工株式会社 Planetary transmission
JPH0240146A (en) * 1988-07-29 1990-02-08 Sharp Corp Production of optical memory element
SE503889C2 (en) * 1994-10-31 1996-09-23 Atlas Copco Tools Ab Reversible nut wrench
JP4132005B2 (en) * 2000-11-17 2008-08-13 株式会社マキタ Electric tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB184070A (en) * 1919-02-28 1922-08-10 Andrew Jacob Karl Change speed gear
US2339269A (en) * 1942-03-07 1944-01-18 Studebaker Corp Transmission
US2600762A (en) * 1951-08-04 1952-06-17 Jack & Heintz Prec Ind Inc Starter generator
US4274304A (en) * 1978-03-29 1981-06-23 Cooper Industries, Inc. In-line reversing mechanism
JPH079357A (en) * 1993-06-24 1995-01-13 Matsushita Electric Works Ltd Speed reducer with transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102971115A (en) * 2010-04-29 2013-03-13 喜利得股份公司 A power tool

Also Published As

Publication number Publication date
JP2009072903A (en) 2009-04-09
WO2009027821A2 (en) 2009-03-05
JP4900340B2 (en) 2012-03-21

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