Magnetic system for controlling the operating mode of an overrunning coupling assembly and overrunning coupling and magnetic control assembly having same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16D-027/09
F16D-041/00
출원번호
US-0288819
(2014-05-28)
등록번호
US-9234552
(2016-01-12)
발명자
/ 주소
Kimes, John W.
출원인 / 주소
MEANS INDUSTRIES, INC.
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
3인용 특허 :
92
초록▼
A magnetic system for controlling the operating mode of an overrunning coupling assembly is provided. The system includes a ferromagnetic or magnetic element received within a pocket in an uncoupling position and is movable outwardly from the pocket to a coupling position. The element controls the o
A magnetic system for controlling the operating mode of an overrunning coupling assembly is provided. The system includes a ferromagnetic or magnetic element received within a pocket in an uncoupling position and is movable outwardly from the pocket to a coupling position. The element controls the operating mode of the coupling assembly. An armature is connected to the element to move the element between the coupling and uncoupling positions. A magnetic field sensor is disposed adjacent and stationary with respect to the element for sensing magnetic flux to produce an output signal which is based on the position of the element. A variable magnetic field is generated in response to movement of the element between the coupling and uncoupling positions.
대표청구항▼
1. A magnetic system for controlling the operating mode of an overrunning coupling assembly including a coupling member having a first coupling face and a coupling subassembly having a second coupling face with a pocket defining a load-bearing shoulder, the coupling faces being in close-spaced oppos
1. A magnetic system for controlling the operating mode of an overrunning coupling assembly including a coupling member having a first coupling face and a coupling subassembly having a second coupling face with a pocket defining a load-bearing shoulder, the coupling faces being in close-spaced opposition with one another, at least one of the coupling member and the coupling subassembly being mounted for rotation about a rotary axis, the system comprising: a ferromagnetic or magnetic element received within the pocket in an uncoupling position and movable outwardly from the pocket to a coupling position characterized by abutting engagement of the element with the load-bearing shoulder; the element controlling the operating mode of the coupling assembly;an electromagnetic source including at least one excitation coil;a reciprocating armature arranged concentrically relative to the at least one excitation coil and being axially movable when the at least one excitation coil is supplied with current, the armature being connected to the element to move the element between the coupling and uncoupling positions; anda magnetic field sensor disposed adjacent and stationary with respect to the element for sensing magnetic flux to produce an output signal which is based on the position of the element wherein a variable magnetic field is generated in response to movement of the element between the coupling and uncoupling positions. 2. The system as claimed in claim 1, wherein the sensor includes a magnetic field sensing element. 3. The system as claimed in claim 1, wherein the sensor is back-biased and wherein the element is a ferromagnetic element. 4. The system as claimed in claim 1, wherein the element is a locking element which controls the operating mode of the coupling assembly. 5. The system as claimed in claim 4, wherein the locking element is an injection molded strut. 6. The system as claimed in claim 1, further comprising a return biasing member to urge the armature to a return position which corresponds to the uncoupling position of the element. 7. The system as claimed in claim 1, wherein the coupling faces are oriented to face axially. 8. The system as claimed in claim 1, wherein the pocket has a T-shape. 9. The system as claimed in claim 1, wherein the element includes at least one projecting leg portion which provides an attachment location for a leading end of the armature. 10. The system as claimed in claim 9, wherein each leg portion has an aperture, wherein the system further comprises a pivot pin received within each aperture to allow rotational movement of the element in response to reciprocating movement of the armature and wherein the leading end of the armature is connected to the element via the pivot pin. 11. The system as claimed in claim 10, wherein each aperture is an oblong aperture to receive the pivot pin to allow both rotation and translational movement of the element in response to reciprocating movement of the armature. 12. The system as claimed in claim 1, wherein the coupling assembly is a clutch assembly and the coupling faces are clutch faces. 13. An overrunning coupling and magnetic control assembly comprising: a coupling member having a first coupling face and a coupling subassembly having a second coupling face with a pocket defining a load-bearing shoulder, the coupling faces being in close-spaced opposition with one another, at least one of the coupling member and the coupling subassembly being mounted for rotation about a rotary axis;a ferromagnetic or magnetic element received within the pocket in an uncoupling position and movable outwardly from the pocket to a coupling position characterized by abutting engagement of the element with the load-bearing shoulder; the element controlling the operating mode of the coupling assembly;an electromagnetic source including at least one excitation coil;a reciprocating armature arranged concentrically relative to the at least one excitation coil and being axially movable when the at least one excitation coil is supplied with current, the armature being connected to the element to move the element between the coupling and uncoupling positions; anda magnetic field sensor disposed adjacent and stationary with respect to the element for sensing magnetic flux to produce an output signal which is based on the position of the element wherein a variable magnetic field is generated in response to movement of the element between the coupling and uncoupling positions. 14. The assembly as claimed in claim 13, wherein the sensor includes a magnetic field sensing element. 15. The assembly as claimed in claim 13, wherein the sensor is back-biased and wherein the element is a ferromagnetic element. 16. The assembly as claimed in claim 13, wherein the element is a locking element. 17. The assembly as claimed in claim 16, wherein the locking element is an injection molded strut. 18. The assembly as claimed in claim 13, further comprising a return biasing member to urge the armature to a return position which corresponds to the uncoupling position of the element. 19. The assembly as claimed in claim 13, wherein the coupling faces are oriented to face axially. 20. The assembly as claimed in claim 13, wherein the pocket has a T-shape. 21. The assembly as claimed in claim 13, wherein the element includes at least one projecting leg portion which provides an attachment location for a leading end of the armature. 22. The assembly as claimed in claim 21, wherein each leg portion has an aperture, wherein the assembly further comprises a pivot pin received within each aperture to allow rotational movement of the element in response to reciprocating movement of the armature and wherein the leading end of the armature is connected to the element via the pivot pin. 23. The assembly as claimed in claim 22, wherein each aperture is an oblong aperture to receive the pivot pin to allow both rotation and translational movement of the element in response to reciprocating movement of the armature. 24. The assembly as claimed in claim 13, wherein the coupling member is a clutch member and the coupling faces are clutch faces. 25. An electromechanical apparatus for use in a controllable coupling assembly, the apparatus comprising: a housing part having a closed axial end including an end wall having an outer coupling face with a single pocket defining a load-bearing shoulder in communication with an inner face of the end wall;an electromagnetic source including at least one excitation coil at least partially surrounded by the housing part;an element received within the pocket in an uncoupling position and movable outwardly from the pocket to a coupling position characterized by abutting engagement of the element with the load-bearing shoulder; anda spring-loaded reciprocating armature arranged concentrically relative to the at least one excitation coil and being axially movable when the at least one excitation coil is supplied with current, the armature being connected to the element to move the element between the coupling and uncoupling positions. 26. The apparatus as claimed in claim 25, wherein the element is a locking element which controls the operating mode of the coupling assembly. 27. The apparatus as claimed in claim 25, wherein the element is an impact energy storage element to absorb and store impact energy to reduce undesirable noise and contact stress caused by a transition between operating modes of the coupling assembly. 28. The apparatus as claimed in claim 25, wherein the element is pivotally connected to a leading end of the armature and wherein the armature pivotally moves the element within the pocket in response to reciprocating movement of the armature. 29. The apparatus as claimed in claim 25, wherein the at least one coil, the housing part and the armature comprise a low profile solenoid. 30. The apparatus as claimed in claim 26, wherein the locking element is an injection molded strut. 31. The apparatus as claimed in claim 27, wherein the storage element includes a rigid insert and an elastomeric outer covering layer surrounding and bonded to the insert. 32. The apparatus as claimed in claim 31, wherein the outer covering layer is a high temperature-resistant layer molded over the insert. 33. The apparatus as claimed in claim 27, wherein the storage element carries elastomeric material defining opposite end sections of the storage element, one of the end sections being configured to deflect upon abutting engagement with the shoulder. 34. The apparatus as claimed in claim 25, further comprising a biasing member to urge the armature to a position which corresponds to the coupling position of the element. 35. The apparatus as claimed in claim 25, wherein the housing part has at least one attachment flange to attach the apparatus to a coupling member of the coupling assembly. 36. The apparatus as claimed in claim 25, wherein the outer coupling face of the end wall is oriented to face axially. 37. The apparatus as claimed in claim 25, wherein the pocket has a T-shape. 38. The apparatus as claimed in claim 25, wherein the element includes at least one projecting leg portion which provides an attachment location for a leading end of the armature. 39. The apparatus as claimed in claim 28, wherein each leg portion has an aperture and wherein the apparatus further comprises a pivot pin received within each aperture to allow rotational movement of the element in response to reciprocating movement of the armature and wherein the leading end of the armature is connected to the element via the pivot pin. 40. The apparatus as claimed in claim 39, wherein each aperture is an oblong aperture to receive the pivot pin to allow both rotation and translational movement of the element in response to reciprocating movement of the armature. 41. A controllable coupling assembly having multiple operating modes, the assembly comprising: first and second coupling members supported for rotation relative to one another about a common rotational axis, the first coupling member having a first coupling face with a plurality of recesses, each of the recesses defining a load-bearing first shoulder; andan electromechanical apparatus including: a housing part having a closed axial end including an end wall having an outer coupling face in close-spaced opposition to the first coupling face and having a single pocket defining a load-bearing second shoulder in communication with an inner face of the end wall;an electromagnetic source including at least one excitation coil at least partially surrounded by the housing part;an element received within the pocket in an uncoupling position and movable outwardly from the pocket to a coupling position characterized by abutting engagement of the element with respective shoulders of the first member and the end wall; anda spring-loaded reciprocating armature arranged concentrically relative to the at least one excitation coil and being axially movable when the at least one excitation coil is supplied with current, the armature being connected to the element to move the element between the coupling and uncoupling positions. 42. The assembly as claimed in claim 41, wherein the element is a locking element. 43. The assembly as claimed in claim 41, wherein the element is an impact energy storage element to absorb and store impact energy. 44. The assembly as claimed in claim 41, wherein the element is pivotally connected to a leading end of the armature and wherein the armature pivotally moves the element within the pocket in response to reciprocating movement of the armature. 45. The assembly as claimed in claim 42, wherein the locking element is an injection molded strut. 46. The assembly as claimed in claim 43, wherein the storage element includes a rigid insert and an elastomeric outer covering layer surrounding and bonded to the insert. 47. The assembly as claimed in claim 46, wherein the outer covering layer is a high temperature-resistant layer molded over the insert. 48. The assembly as claimed in claim 43, wherein the storage element carries elastomeric material defining opposite end sections of the storage element, each end section being configured to deflect upon abutting engagement with respective shoulders of the first coupling member and the end wall. 49. The assembly as claimed in claim 41, wherein the at least one coil, the housing part and the armature comprise a low profile solenoid. 50. The assembly as claimed in claim 41, further comprising a biasing member to urge the armature to a position which corresponds to the coupling position of the element. 51. The assembly as claimed in claim 41, wherein the housing part has at least one attachment flange to attach the apparatus to the second coupling member. 52. The assembly as claimed in claim 41, wherein the outer coupling face of the end wall is oriented to face axially. 53. The assembly as claimed in claim 41, wherein the pocket has a T-shape. 54. The assembly as claimed in claim 41, wherein the element includes at least one projecting leg portion which provides an attachment location for a leading end of the armature. 55. The assembly as claimed in claim 54, wherein each leg portion has an aperture and wherein the apparatus further includes a pivot pin received within each aperture to allow rotational movement of the element in the pocket in response to reciprocating movement of the armature and wherein the leading end of the armature is connected to the element via the pivot pin. 56. The assembly as claimed in claim 55, wherein each aperture is an oblong aperture to receive the pivot pin to allow both rotation and translational movement of the element in response to reciprocating movement of the armature.
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