[특허]Continuously variable transmission capable of torque control

Continuously variable transmission capable of torque control 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-059/00 F16H-061/00 F16H-063/00
출원번호	US-0663052 (1996-06-13)
우선권정보	GB-0017242 (1994-08-26)
국제출원번호	PCT/GB94/027 (1994-12-09)
§371/§102 date	19960613 (19960613)
국제공개번호	WO-9517621 (1995-06-29)
발명자 / 주소	Fellows Thomas George,GB2 Greenwood Christopher John,GB2
출원인 / 주소	Torotrak (Development) Limited, GB2
대리인 / 주소	Davis and Bujold
인용정보	피인용 횟수 : 93 인용 특허 : 0

초록 ▼

A continuously-variable-ratio transmission ("CVT") of the band-and-sheave type capable of "torque control", so that what the operator demands, by movement of the accelerator pedal or other control member, is a particular driving torque applied to the ratio-varying components ("variator") A connection (21, 22) between at least one of the variator sheaves (3, 4) and its shaft (5) is torque-sensitive, so that torque at that sheave generates an axial force which is a function of the magnitude and direction of the torque to which the sheave is subjected. Examples are described in which the operating axial load, applied to the variator pulley units, comprises two parts--a first part to maintain traction between sheaves and band, and a second part related to the applied torque--and a variator using more than one band.

대표청구항 ▼

[ We claim:] [1.] A continuously-variable-ratio transmission ("CVT") of a band-and-sheave type including control means (17) operable (via 18) by a driver or other operator, a ratio-varying component ("variator") comprising at least one band (1) in driving contact with two pulley units (2, 6) presenting parallel but separated axes of rotation but sharing a substantially common radial plane, in which each pulley unit comprises shaft means (5, 9) and two sheaves (3, 4; 7, 8) mounted thereon, axial separation of the sheaves being variable whereby to alter radius of contact between the band and an associated pulley unit and so alter transmitted ratio, in which there is a torque-sensitive connection (21, 22) between at least one of the pulley units and its shaft means capable of generating an axial unit/shaft means force that is a function of a magnitude and direction of a torque a pulley unit is transmitting, and in which loading means (30, 15, 25, 36, 39; 31, 16, 26, 37, 39) operate on the pulley units to urge their sheaves together with a loading force characterized in that the torque sensitive connection comprises a power transmitting connection and the input of power to the variator by way of a shaft means on either of the two axes has the effect, by way of the torque-sensitive connection, of tending to cause the axial separation of the sheaves of a unit on that shaft means to increase relative to that of the sheaves of a corresponding unit on the other shaft means.

이 특허를 인용한 특허 (93)

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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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연합인증

Continuously variable transmission capable of torque control 원문보기

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Continuously variable transmission capable of torque control 원문보기

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