[특허]Double output torque limiter

Sundstrand Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Double output torque limiter

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16D-059/00
미국특허분류(USC)	192/007; 192/055; 192/078
출원번호	US-0541358 (1983-10-11)
발명자 / 주소	Chapman, John R.
출원인 / 주소	Sundstrand Corporation
대리인 / 주소	Wood, Dalton, Phillips, Mason & Rowe
인용정보	피인용 횟수 : 6 인용 특허 : 3

초록
▼

According to the invention a housing is provided defining concentric, cylindrical first and second braking surfaces. First and second cylindrical, concentric torque tubes are provided within the annular gap between braking surfaces and are each split lengthwise sufficiently to permit slight, radial deflection into engagement with the respective braking surfaces on the housing to which it is adjacent. An input carrier is provided to transmit the torque between a prime mover and an output position on the torque tubes. The carrier has a plurality of fingers...

대표
청구항
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1. An apparatus for limiting torque applied by a driving member to a driven member comprising: first and second torque members having coincident rotational axes and positioned one radially inside the other; first and second braking surfaces respectively on the first and second torque members; a housing having first and second braking surfaces spaced radially apart with respect to the axes of the torque members and facing, respectively the first and second braking surfaces on the torque members for engagement therewith; first means interconnecting said driven member with at least one of said first and second torque members whereby rotation of the one of said first and second torque members drives said driven member; second means for imparting rotational movement from said driving member to said first and second torque members; and third means for simultaneously engaging said first and second braking surfaces on the torque members with the corresponding braking surfaces on the housing and fixing the position of the first and second torque members relative to the housing at a predetermined torque to prevent excessive torque on the driven member. 2. The torque limiting apparatus of claim 1 wherein friction generating material is disposed between the first braking surfaces on the first torque member and the housing and the second braking surfaces on the second torque member and the housing. 3. An apparatus for limiting torque applied by a driving member to a driven member comprising: a first torque member having a rotational axis and a first braking surface; a second torque member having a rotational axis coincident with the axis of the first torque member and a second braking surface; a housing having first and second braking surfaces for engagement respectively with the first and second braking surfaces on the torque members; first means interconnecting said driven member with at least one of said first and second torque members whereby rotation of the one of said first and second torque members drives said driven member; second means for imparting rotational movement from said driving member to said first and second torque members; and third means for simultaneously engaging said first and second braking surfaces on the torque members with the corresponding braking surfaces on the housing at a predetermined torque to prevent excessive torque on the driven member, said first and second torque members each have a cylindrical configuration and a plurality of slits extend lengthwise at least partially along each said first and second torque members thereby defining radially deflectable segments engagable with the first and second braking surfaces on the housing. 4. An apparatus for limiting torque applied by a driving member to a driven member comprising: a first torque member having a rotational axis and a first braking surface; a second torque member having a rotational axis coincident with the axis of the first torque member and a second braking surface; a housing having first and second braking surfaces for engagement respectively with the first and second braking surfaces on the torque members; friction generating material disposed between at least one of the first braking surfaces and the second braking surfaces; first means interconnecting said driven member with at least one of said first and second torque members whereby rotation of the one of said first and second torque members drives said driven member; second means for imparting rotational movement from said driving member to said first and second torque members comprising a plurality of axially extending fingers interposed between the first and second torque members; and third means for simultaneously engaging said first and second braking surfaces on the torque members with the corresponding braking surfaces on the housing at a predetermined torque to prevent excessive torque on the driven member, said third means comprising a ramped surface provided on at least one of said first and second torque members, said ramped surface causing said first and second braking surfaces on the torque members to simultaneously engage the corresponding braking surfaces on the housing as the fingers rotate relative to the first and second torque members at said predetermined torque. 5. The torque limiting apparatus of claim 3 wherein said third means comprises a ramped surface on said first and second torque member and the ramped surfaces on the first and second torque members cooperatively define a converging opening extending away from each said finger. 6. The torque limiting apparatus of claim 4 wherein the fingers are arranged in a circular pattern and are spaced equidistantly to provide for uniform braking. 7. An apparatus for limiting torque applied by a driving member to first and second driven members comprising: a first cylindrical torque member having a rotational axis and a first braking surface; a second cylindrical torque member having a rotational axis coincident with the first torque member, said second cylindrical torque member in axial overlapping relationship with the first cylindrical torque member; a housing having a first braking surface for engagement with the braking surface on the first torque member; first means for transmitting rotational movement from said driving member simultaneously to said first and second torque members; second means for engaging the braking surfaces on the housing and the first torque member at a predetermined torque to prevent excessive torque on the driven members; means operatively engaging the first driven member with the first torque member; and means operatively engaging the second driven member with the second torque member. 8. An apparatus for limiting torque applied by a driving member to first and second driven members comprising: a first cylindrical torque member having a rotational axis and a first braking surface; a second cylindrical torque member having a rotational axis coincident with the first torque member and a second braking surface; a housing having a first braking surface for engagement with the braking surface on the first torque member and second braking surface; first means for transmitting rotational movement from said driving member simultaneously to said first and second torque members; second means for engaging the braking surfaces on the housing and the first torque member at a predetermined torque to prevent excessive torque on the driven members, said second means comprising a plurality of axially extending fingers interposed between the first and second torque members; means operatively engaging the first driven member with the first torque member; and means operatively engaging the second driven member with the second torque member; and ramp means on at least one of said first and second torque members, said ramp means causing said first and second braking surfaces on the torque members to simultaneously engage the corresponding braking surfaces on the housing as the fingers rotate relative to the first and second torque members at said predetermined torque. 9. The torque limiting apparatus of claim 7 wherein one of said first and second torque members has a portion extending axially beyond the other of the first and second torque members and means are provided to operatively engage one of the first and second driven members with said portion and separate means operatively engage the other of the first and second driven members with the other of the first and second torque members. 10. An apparatus for limiting torque applied by a driving member to first and second driven members comprising: a housing having a cylindrical inner chamber; a first braking surface on said housing within said chamber; a second braking surface on said housing and spaced radially from said first braking surface; first and second radially spaced cylindrical concentric torque tubes within said chamber each said torque tube having a plurality of lengthwise slits defining radially deflectable segments; a first braking surface on the first torque tube adjacent the first braking surface on the housing; a second braking surface on the second torque tube adjacent the second braking surface on the housing; driving means including a plurality of fingers disposed between and simultaneously rotating said first and second torque tubes; ramp means associated with each said first and second torque tubes, said ramp means on said first and second torque tubes cooperatively defining a converging opening extending away from each said finger; and means operatively engaging the first and second driven members respectively with the first and second torque tubes, said ramp means causing said first and second braking surfaces on the torque tubes to deflect and frictionally engage its respective adjacent braking surface on the housing as the fingers rotate relative to the first and second torque members at a predetermined torque, whereby excess torque is absorbed. 11. The torque limiting apparatus of claim 10 wherein said first and second braking surfaces on said housing are each substantially cylindrical and substantially in concentric alignment with each other and said first and second torque tubes. 12. A double output torque limiter comprising: a pair of concentric tubes positioned one inside the other and each having an axially split portion; a pair of driven members connected one to each of said tubes; a housing having parts exteriorly and interiorly of said concentric tubes with brake material thereon and normally spaced therefrom; a driving member having fingers positioned between the axially split portions of the tubes; and means responsive to an excessive amount of torque applied to the driving member for flexing the axially split portions of the tubes into engagement with said brake material.

이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 (6)

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특허 상세정보

Double output torque limiter

초록
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대표
청구항
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이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 (6)

IPC 상위 출원인

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상세정보조회

원문조회

IPC 상세정보(version : 201201)

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특허 상세정보

Double output torque limiter

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (3)

이 특허를 인용한 특허 (6)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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