IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0157678
(2011-06-10)
|
등록번호 |
US-8662260
(2014-03-04)
|
발명자
/ 주소 |
- Baldeosingh, Howard H.
- Palmer-Coleman, LynRoy
|
출원인 / 주소 |
|
대리인 / 주소 |
Renner, Kenner, Greive, Bobak, Taylor & Weber
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
9 |
초록
▼
A caliper brake including a housing and a rotating actuator received in a bore in the housing, the rotating actuator having a head positioned within the housing and an outer tapered surface located outside the housing. A lever includes a bore with an inner tapered surface that mates with the outer t
A caliper brake including a housing and a rotating actuator received in a bore in the housing, the rotating actuator having a head positioned within the housing and an outer tapered surface located outside the housing. A lever includes a bore with an inner tapered surface that mates with the outer tapered surface of the rotating actuator. A threaded nut is received over a threaded end portion of the rotating actuate and applies pressure to the lever to rotationally secure it to the rotating actuator. An inner stator is positioned adjacent to the head of the rotating actuator and an outer stator is spaced from the inner stator, the stators being axially movable. A plurality of ramped depressions are provided in both the head and in a backing plate of the inner stator, and a ball is positioned between each of the ramped depressions.
대표청구항
▼
1. A caliper brake for activation on a rotor comprising a housing, a rotating actuator carried by said housing and having an end surface, an inner stator positioned adjacent to said end surface and having a backing plate and a liner, a plurality of ramped depressions in said end surface of said rota
1. A caliper brake for activation on a rotor comprising a housing, a rotating actuator carried by said housing and having an end surface, an inner stator positioned adjacent to said end surface and having a backing plate and a liner, a plurality of ramped depressions in said end surface of said rotating actuator, a plurality of ramped depressions in said backing plate of said inner stator on a surface proximate said end surface of said rotating actuator, said ramped depressions of said inner stator being aligned with said ramped depressions of said rotating actuator, and a ball received in each of said ramped depressions, wherein rotation of said rotating actuator causes movement of said balls in said ramped depressions and axial movement of said inner stator, wherein said liner of said inner stator engages the rotor. 2. The caliper brake of claim 1, said rotating actuator including a neck and a head, said head having an increased diameter relative to said neck and being positioned within said housing, the intersection of said head and said neck forming a shoulder generally perpendicular to an axis of rotation of said neck. 3. The caliper brake of claim 2, wherein a seal is provided around said neck of said rotating actuator at an opening of said bore. 4. The caliper brake of claim 2, said housing having a bore that receives said neck of said rotating actuator therein, a bushing being positioned around said neck and within said bore. 5. The caliper brake of claim 4, said housing including a recess adjacent to said bore, said recess being adapted to receive a portion of said head and having a back surface generally parallel to said shoulder. 6. The caliper brake of claim 5, further comprising a needle thrust bearing positioned between said shoulder of said rotating actuator and said back surface of said recess. 7. The caliper brake of claim 1, further comprising a lever secured to a first end of said rotating actuator, said lever acting to rotate said rotating actuator. 8. The caliper brake of claim 7, said first end of said rotating actuator including a tapered outer surface decreasing in diameter as it extends away from said housing and a threaded portion adjacent to said tapered outer surface. 9. The caliper brake of claim 8, said lever having a bore with an inner tapered surface adapted to be received over said tapered outer surface of said rotating actuator. 10. The caliper brake of claim 9, further comprising a threaded nut received on said threaded portion of said rotating actuator, said nut acting to rotationally secure said lever to said rotating actuator by applying an axial force to said lever, thereby pressing said inner tapered surface of said bore against said outer tapered surface of said rotating actuator. 11. The caliper brake of claim 1, wherein three ramped depressions are arranged in a circular pattern in said end surface of said rotating actuator and three ramped surfaces are arranged in a circular pattern in said backing plate of said inner stator. 12. A brake for engaging a rotor comprising a housing, a rotating actuator, an inner stator, a needle thrust bearing, and a lever, said rotating actuator carried by said housing and having a first end positioned outside of said housing and a second end positioned within said housing, said first end of said rotating actuator having a tapered outer surface decreasing in diameter as it extends away from said housing and a threaded portion adjacent to said tapered surface, said lever having a bore with a tapered inner surface adapted to mate with said tapered surface of said rotating actuator, said inner stator having a backing plate and a liner, wherein said backing plate has a plurality of ramped depressions, and wherein said liner of said inner stator engages the rotor. 13. The brake of claim 12, further comprising a threaded nut received over said threaded portion of said rotating actuator, said threaded nut acting to rotationally secure said lever to said rotating actuator when tightened by applying an axial force to said lever, thereby pressing said tapered inner surface of said bore against said tapered outer surface of said rotating actuator. 14. The brake of claim 13, further comprising a cotter key that prevents rotation of said threaded nut. 15. The brake of claim 12, wherein said lever is connected to a mechanism that actuates the brake. 16. The brake of claim 12, further comprising a plurality of ramped depressions in said second end of said rotating actuator and a ball received in each of said ramped depressions. 17. The brake of claim 16, further comprising an inner stator positioned within said housing and adjacent to said second end of said rotating actuator and an outer stator spaced from said inner stator within said housing. 18. The brake of claim 17, further comprising a plurality of ramped depressions in said inner stator facing said ramped depressions in said rotating actuator. 19. A brake for engaging a rotor comprising a housing having a bore and a recess adjacent to said bore, said recess including a back surface; a rotating actuator having a neck received in said bore and a head positioned within said housing, said head having an increased diameter relative to said neck, the intersection of said head and said neck forming a shoulder surface generally parallel to said back surface of said recess; a needle thrust bearing positioned between said shoulder surface and said back surface, said bearing acting to reduce friction during rotation of said rotating actuator; an inner stator having a backing plate and a liner, wherein said backing plate has a plurality of ramped depressions, and wherein said liner of said inner stator engages the rotor; and a lever having a bore with a tapered inner surface adapted to mate with a tapered surface of said rotating actuator. 20. The brake of claim 19, further comprising a plurality of ramped depressions in an end surface of said head and a ball received in each of said ramped depressions. 21. A brake comprising: a housing having a bore in one side;a rotating actuator having a head with an end surface positioned within said housing and a neck received in said bore in said housing, said neck including a tapered outer surface positioned outside of said housing and a threaded portion on a distal end of said neck opposite said head;an inner stator positioned adjacent to said end surface and having a backing plate;a plurality of ramped depressions in said end surface of said rotating actuator;a plurality of ramped depressions in said backing plate of said inner stator on a surface proximate said end surface of said rotating actuator, said ramped depressions of said inner stator being aligned with said ramped depressions of said rotating actuator;a ball received in each of said ramped depressions, wherein rotation of said rotating actuator causes movement of said balls in said ramped depressions and axial movement of said inner stator;a lever having a bore with a tapered inner surface adapted to mate with said tapered surface of said rotating actuator; anda needle thrust bearing positioned between said head and said housing around said bore in said housing.
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