A hydraulic lock for a thrust vector actuator includes a lock cylinder. The lock cylinder includes at least one slot and at least one bore. The slot is defined through a perimeter of the lock cylinder, and the bore is defined through a portion of the lock cylinder at a second end to extend towards a
A hydraulic lock for a thrust vector actuator includes a lock cylinder. The lock cylinder includes at least one slot and at least one bore. The slot is defined through a perimeter of the lock cylinder, and the bore is defined through a portion of the lock cylinder at a second end to extend towards a first end. The hydraulic lock includes at least one biasing member coupled to the bore. The hydraulic lock includes at least one pawl having a first pawl end and a second pawl end. The first pawl end is releasably coupled to the shaft of the thrust vector actuator. The second pawl end is coupled to the slot. The pawl is movable relative to the slot between a first, locked position in which the first pawl end is coupled to inhibit movement of the shaft, and a second, unlocked position.
대표청구항▼
1. A hydraulic lock for a thrust vector actuator having a movable shaft, comprising: a lock cylinder having a first end and a second end, the lock cylinder including at least one slot and at least one bore, the at least one slot defined through a perimeter of the lock cylinder adjacent to the second
1. A hydraulic lock for a thrust vector actuator having a movable shaft, comprising: a lock cylinder having a first end and a second end, the lock cylinder including at least one slot and at least one bore, the at least one slot defined through a perimeter of the lock cylinder adjacent to the second end, the at least one bore defined through a portion of the lock cylinder at the second end to extend towards the first end;at least one biasing member coupled to the at least one bore;at least one pawl having a first pawl end and a second pawl end, the first pawl end releasably coupled to a groove defined in the shaft of the thrust vector actuator, the second pawl end coupled to the at least one slot, the at least one pawl movable relative to the at least one slot between a first, locked position in which the first pawl end is coupled to the groove to inhibit movement of the shaft, and a second, unlocked position in which the first pawl end is released from the groove; anda cover coupled to the at least one biasing member,wherein a movement of the lock cylinder towards the cover moves the at least one pawl from the first, locked position to the second, unlocked position. 2. The hydraulic lock of claim 1, wherein the first pawl end is interconnected to the second pawl end by a body, and the first pawl end defines an arcuate surface that contacts the groove when the at least one pawl is in the first, locked position. 3. The hydraulic lock of claim 2, wherein the second pawl end includes a tail that extends outwardly from the body and engages a recess defined in the cover in the second, unlocked position. 4. The hydraulic lock of claim 1, wherein the second pawl end includes a first ramp surface substantially opposite a second ramp surface, and the first ramp surface and the second ramp surface each contact the at least one slot in the second, unlocked position. 5. The hydraulic lock of claim 4, wherein the second pawl end includes a planar surface that interconnects the first ramp surface and the second ramp surface, and the planar surface contacts the at least one slot in the first, locked position. 6. The hydraulic lock of claim 5, wherein the at least one slot is defined in a sidewall of the lock cylinder that has a first surface opposite a second surface, the second surface is adjacent to the shaft of the thrust vector actuator, the at least one slot includes a rib that extends from the first surface toward the second surface and contacts the planar surface in the first, locked position. 7. The hydraulic lock of claim 6, wherein the rib has a surface that engages the second ramp surface as the at least one pawl moves from the first, locked position to the second, unlocked position. 8. The hydraulic lock of claim 4, wherein the at least one slot is defined in a sidewall of the lock cylinder that has a first surface opposite a second surface, the second surface is adjacent to the shaft of the thrust vector actuator, the at least one slot includes a ledge that projects upward from the second surface toward the first surface and engages the first ramp surface as the at least one pawl moves from the first, locked position to the second, unlocked position. 9. The hydraulic lock of claim 1, further comprising a lock housing that surrounds the shaft, the lock housing including at least one lock piston in fluid communication with a hydraulic source to receive a hydraulic fluid, and the at least one lock piston is movable relative to a portion of the lock housing to move the lock cylinder towards the cover. 10. The hydraulic lock of claim 9, wherein the at least one lock piston is received within at least one conduit defined by the lock housing, and the at least one conduit is adjacent to the first end of the lock cylinder such that the at least one lock piston contacts the first end of the lock cylinder upon receipt of the hydraulic fluid. 11. The hydraulic lock of claim 9, wherein the lock housing defines at least one slot that aligns with the groove and the first pawl end is received through the at least one slot. 12. A hydraulic lock for a thrust vector actuator having a movable shaft, comprising: a lock cylinder having a first end and a second end, the lock cylinder including at least one slot and at least one bore, the at least one slot defined through a sidewall of the lock cylinder adjacent to the second end, the at least one bore defined through a portion of the lock cylinder at the second end to extend towards the first end, the sidewall having a first surface opposite a second surface, and a ledge that extends from the second surface towards the first surface;at least one biasing member coupled to the at least one bore;at least one pawl having a first pawl end and a second pawl end, the first pawl end releasably coupled to a groove defined in the shaft of the thrust vector actuator, the second pawl end coupled to the at least one slot, the at least one pawl movable relative to the at least one slot between a first, locked position in which the first pawl end is coupled to the groove to inhibit movement of the shaft, and a second, unlocked position in which the first pawl end is released from the groove, the second pawl end having a first ramp surface that engages with the ledge as the at least one pawl moves from the first, locked position to the second, unlocked position; anda cover coupled to the at least one biasing member and the at least one pawl,wherein a movement of the lock cylinder towards the cover moves the at least one pawl from the first, locked position to the second, unlocked position. 13. The hydraulic lock of claim 12, wherein the first pawl end is interconnected to the second pawl end by a body, and the first pawl end defines an arcuate surface that contacts the groove when the at least one pawl is in the first, locked position. 14. The hydraulic lock of claim 13, wherein the second pawl end includes a tail that extends outwardly from the body and engages a recess defined in the cover in the second, unlocked position. 15. The hydraulic lock of claim 12, wherein the second pawl end includes a second ramp surface substantially opposite the first ramp surface, and the second ramp surface contacts the at least one slot in the second, unlocked position. 16. The hydraulic lock of claim 12, wherein the second pawl end includes a planar surface that interconnects the first ramp surface and the second ramp surface, and the planar surface contacts the at least one slot in the first, locked position. 17. The hydraulic lock of claim 16, wherein the second surface is adjacent to the shaft of the thrust vector actuator, the at least one slot includes a rib that extends from the first surface toward the second surface and contacts the planar surface in the first, locked position, and the rib has a surface that engages the second ramp surface as the at least one pawl moves from the first, locked position to the second, unlocked position. 18. The hydraulic lock of claim 12, further comprising a lock housing that surrounds the shaft, the lock housing defining at least one conduit and including at least one lock piston received within the at least one conduit, the at least one conduit in fluid communication with a hydraulic source to receive a hydraulic fluid, and the at least one conduit is adjacent to the first end of the lock cylinder such that the at least one lock piston contacts the first end of the lock cylinder upon receipt of the hydraulic fluid to move the lock cylinder towards the cover. 19. A thrust vector actuator having a movable shaft, comprising: a lock housing that surrounds the shaft and defines at least one conduit in fluid communication with a hydraulic source to receive a hydraulic fluid, the lock housing including at least one lock piston received within the at least one conduit;a lock including: a lock cylinder having a first end and a second end, the lock cylinder including at least one slot and at least one bore, the at least one slot defined through a sidewall of the lock cylinder adjacent to the second end, the at least one bore defined through a portion of the lock cylinder at the second end to extend towards the first end, the sidewall having a first surface opposite a second surface, and a ledge that extends from the second surface towards the first surface;at least one biasing member coupled to the at least one bore;at least one pawl having a first pawl end and a second pawl end, the first pawl end releasably coupled to a groove defined in the shaft of the thrust vector actuator, the second pawl end coupled to the at least one slot, the at least one pawl movable relative to the at least one slot between a first, locked position in which the first pawl end is coupled to the groove to inhibit movement of the shaft, and a second, unlocked position in which the first pawl end is released from the groove, the second pawl end having a first ramp surface that engages with the ledge as the at least one pawl moves from the first, locked position to the second, unlocked position; anda cover coupled to the at least one biasing member,wherein upon receipt of the hydraulic fluid, the at least one lock piston contacts the first end of the lock cylinder to move the lock cylinder towards the cover, and the movement of the lock cylinder towards the cover moves the at least one pawl from the first, locked position to the second, unlocked position. 20. The thrust vector actuator of claim 19, wherein the first pawl end is interconnected to the second pawl end by a body, the second pawl end includes a tail that extends outwardly from the body and the tail engages a recess defined in the cover in the second, unlocked position.
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이 특허에 인용된 특허 (3)
Hawthorne,Dana D., Locking device with solenoid release pin.
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