[특허]Electric power tool with gear reduction unit

Electric power tool with gear reduction unit 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-007/116
출원번호	US-0318305 (2008-12-24)
등록번호	US7980320 (2011-07-06)
우선권정보	JP-2007-007-332890(2007-12-25)
발명자 / 주소	Inagaki, Kenichiro Yamada, Yutaka Sekino, Fumiaki
출원인 / 주소	Panasonic Electric Works Co., Ltd.
대리인 / 주소	Bacon & Thomas, PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

An electric power tool includes a motor, a reduction mechanism, a driving unit, a bearing unit, a housing, a speed changing unit, a power switch, and an operation detecting unit which detects a reduction ratio changing operation performed by the speed changing unit to control electric power supplied to the motor. The reduction mechanism transfers the rotating power of the motor, and the driving unit transfers the rotating power of the reduction mechanism to a tip end tool. The bearing unit rotatably supports the driving unit, and the housing accommodates the motor, the reduction mechanism, the driving unit and the bearing unit. The speed changing unit changes a reduction ratio of the reduction mechanism, a power switch for turning on and off a power source of the motor.

대표청구항 ▼

What is claimed is: 1. An electric power tool comprising:a motor as a driving power source;a reduction mechanism for transferring the rotating power of the motor, the reduction mechanism having two or more gear stages;a driving unit for transferring the rotating power of the reduction mechanism to a tip end tool;a bearing unit for rotatably supporting the driving unit;a housing for accommodating the motor, the reduction mechanism, the driving unit and the bearing unit within a main body portion thereof, the housing provided with a handle portion;a speed changing unit for changing a reduction ratio of the reduction mechanism, the speed changing unit being arranged in such a position as to allow an operator to operate the same from the outside of the housing;a power switch for turning on and off an electric power source of the motor;an operation detecting unit for detecting a reduction ratio changing operation performed by the speed changing unit; anda control unit for controlling the electric power supplied to the motor depending on the detected speed changing operation, wherein when the detected speed changing operation is to shift a low load operation to a high load operation, the control unit changes the output of the motor from a high-speed low-torque state to a low-speed high-torque state,wherein at least a part of the gears of the reduction mechanism are capable of changing the rotational speed of the driving unit by shifting, andwherein in response to the detected speed changing operation, the control unit adjusts the electric power supplied to the motor before the gears are shifted.

이 특허에 인용된 특허 (30)

Satou, Kazuhiko; Minowa, Toshimichi; Kuragaki, Satoru; Yoshikawa, Tokuji; Ochi, Tatsuya, Automobile with different diameter differential gear sets having the same gear ratio.
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Toriyama Masayuki (Saitama JPX) Tamaki Kenji (Saitama JPX) Honda Satoshi (Saitama JPX) Motodate Shoji (Saitama JPX) Nakazawa Yoshihiro (Saitama JPX) Fujii Takaaki (Saitama JPX) Sasaki Shigemi (Saitam, Braking control system for an electric vehicle.
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Sumi Yasuo,JPX, Control apparatus of parallel hybrid electric vehicle.
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Totsu Katsuyuki (No. 4-7 ; 3-chome Oshiage ; Sumida-ku ; Tokyo JPX), Control means for the wire wrapping machine.
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Frank Andrew A. (Madison WI) Omitsu Takashi (Troy MI), Control system and method for a power delivery system having a continuously variable ratio transmission.
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Kobayashi Hideyuki (Toyota JPX), Control system and method for a power delivery system having a continuously variable ratio transmission.
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Seto Takeshi,JPX ; Uetake Akihito,JPX ; Shimoda Tatsuya,JPX ; Ono Masao,JPX ; Fukuda Masatoshi,JPX ; Yamazaki Satoshi,JPX, Drive for electric vehicle and control method of the same.
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Radev Vladimir, Drive system for electric vehicles.
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Toyoda Minoru (Nagoya JPX) Moroto Shuzo (Nagoya JPX) Kawamoto Mutsumi (Nagoya JPX), Drive unit for electric motor vehicle.
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Yoshii Kinya (Toyota JPX) Koide Takeharu (Toyota JPX) Ichioka Eiji (Toyota JPX) Tanaka Koichi (Mishima JPX) Kuramochi Kojiro (Numazu JPX), Driving-force regulating apparatus for electric vehicle.
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Thomas C. Bowen ; Philip J. Francis, Electric drive motor axle with integrated reduction and differential gearset.
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Ichioka Eiji (Toyota JPX) Yoshii Kinya (Toyota JPX) Koide Takeharu (Toyota JPX) Kuramochi Kojiro (Numazu JPX) Tanaka Koichi (Mishima JPX), Electric motorcar drive system having shift-lever operated clutch means between electric motor and speed reduction gear.
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Yamada, Yutaka; Iwano, Hiroshi, Electric power tool.
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Tankersley Jerome B. (Fredericksburg VA) Boothe Richard W. (Roanoke VA) Konrad Charles E. (Roanoke VA), Electric vehicle drive train with direct coupling transmission.
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Severinsky Alex J. (10904 Pebble Run Silver Spring MD 20902), Hybrid electric vehicle.
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Shinagawa, Sou; Nakayama, Satoshi; Sekino, Fumiaki, Magnetic impact tool.
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Kawai Toshiyuki,JPX ; Kobayashi Tetsuya,JPX ; Yamashita Takashi,JPX, Method of controlling battery condition of self-generation electric vehicle.
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Pollock Frederick J. (Royal Oak MI) Trombley Douglas E. (Grosse Pointe Woods MI), Output torque matching in a multi-speed electric vehicle.
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Yokota Takao (Fuchu JPX) Monobe Juzaburo (Fuchu JPX) Sano Nobuhiro (Fuchu JPX), Power tool.
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Hansson Gunnar C. (72 ; Karlavgen S-114 59 Stockholm SEX), Power tool for two-step tightening of screw joints.
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Gass, Stephen F.; D'Ascenzo, David S., Power tools.
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Schell Craig A. ; Parks James R. ; Hagan Todd A. ; Nandam Pradeep Kumar ; Bailey ; Jr. Rouse R., Production assembly tool.
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Taga Yutaka,JPX ; Ibaraki Ryuji,JPX, Regenerative brake controller for controlling value of regenerative braking torque simulating engine braking torque.
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Inoue Hiroyuki (Uji JPX) Fujiwara Keiji (Hirakata JPX) Ogawa Tomomi (Kofu JPX) Tezuka Masumi (Yamanashi JPX), Screwing apparatus.
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Takada Yutaka,JPX ; Miyazawa Hiroshi,JPX ; Uetake Akihito,JPX ; Tanaka Kuniaki,JPX ; Nakazato Hiroshi,JPX ; Shinkai Katsumi,JPX, Sensor, drive force auxiliary device using the sensor, and torque sensor zero point adjusting mechanism of the drive force auxiliary device.
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Konrad Charles E. (Roanoke VA), Shunt-wound control for on-road vehicle.
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Saito Takeshi,JPX ; Hayashida Motoyuki,JPX ; Hayashida Masayuki,JPX ; Hayashida Atsushi,JPX, Speed change control apparatus for engine.
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Nakamura Mitsuru (Katsuta JPX) Yamakado Makoto (Ibaraki JPX), System for predicting behavior of automotive vehicle and for controlling vehicular behavior based thereon.
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Ibaraki Ryuji,JPX ; Taga Yutaka,JPX ; Hata Hiroshi,JPX ; Tabata Atsushi,JPX ; Kubo Seitoku,JPX, Vehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy con.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Electric power tool with gear reduction unit 원문보기

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Electric power tool with gear reduction unit 원문보기

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이 특허에 인용된 특허 (30)

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