[특허]Low-profile disk drive motor with deflecting-pad bearings

Low-profile disk drive motor with deflecting-pad bearings 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16C-032/06
출원번호	US-0883487 (1992-05-15)
발명자 / 주소	Ide Russell D. (P.O. Box 744 641 Arnold Rd. Coventry RI 02816)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

A disk drive motor having a low profile construction and a gas-lubricated deflecting pad support usable in the disk drive motor and elsewhere. The motor includes a cup-shaped rotor having an integral cylindrical portion extending from the base of the cup; the cylindrical extension may be a shaft or a large hollow extension which encloses the stator windings. The stator can be conventional or can have a closed end and/or a cup-like portion to simplify construction and eliminate the need for a seal. A support mounted on the stator or the rotor supports the rotor for rotation relative to the stator. The support can be a deflecting pad support such as a deflecting pad hydrodynamic bearing or the plane or gas-lubricated deflecting pad support disclosed herein. The gas-lubricated deflecting pad support member includes bearing pads and a support structure which supports the bearings for strictly radial movement. A contoured surface is formed on the pad surfaces or a support surface opposing the pad surfaces or both. Relative rotation between the pad surfaces and the support surface results in the development of a pressurized gas film between the support surface and the pad surface.

대표청구항 ▼

A unitary deflecting pad support member for supporting a rotating member for rotation with respect to a stationary member, the deflecting pad support member being mounted to one of the stationary member and the rotating member for supporting the other member, the other member having a support surface, the deflecting pad support member comprising: a plurality of circumferentially spaced pads and a support structure formed integrally with the pads for supporting the pads and maintaining the position of the pads relative to one another, each pad having a pad surface adapted to contact the support surface or the member which rotates relative to it, the support structure comprising: a substantially rigid primary support portion integrally formed as a single piece with the pads and supporting the pads, a secondary support portion supporting the primary support portion, the secondary support portion being flexible only in the radial direction and a substantially rigid tertiary support portion supporting the secondary support portion for movement in the radial direction, the support structure being arranged so as to bias the pads directly toward the surface it contacts, and a contour formed on at least one of the pad surfaces and the support surface, the contour being shaped such that, upon rotation of the rotating member, air located between the pads and the surface is pressurized such that the pads are pushed, against the bias of the support structure, away from the support surface and are separated by a film of pressurized fluid.

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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Low-profile disk drive motor with deflecting-pad bearings 원문보기

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Low-profile disk drive motor with deflecting-pad bearings 원문보기

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이 특허를 인용한 특허 (30)

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