초록 ▼

The invention concerns a device forming a mechanism, in particular for use in the space sector, characterised in that it comprises in combination: a material ( 300 ) with low melting point capable of producing a soldering joint, at least heating means ( 400 ), a structure having an architecture with

The invention concerns a device forming a mechanism, in particular for use in the space sector, characterised in that it comprises in combination: a material ( 300 ) with low melting point capable of producing a soldering joint, at least heating means ( 400 ), a structure having an architecture with a zone blocked by the low melting point material ( 300 ), capable of being released by liquefying the low melting point material, and means for forced rolling of the low melting point metal ( 300 ) in liquid state, after the heating means ( 400 ) have been activated, to produce a shock absorbing function.

대표청구항 ▼

1. A mechanism-forming device, in particular for application in space, the device being characterized in that it comprises in combination:a low melting point material ( 300 );at least one heater means ( 400 ); andmeans suitable for throttling the low melting point material ( 300 ) in the liquid stat

1. A mechanism-forming device, in particular for application in space, the device being characterized in that it comprises in combination:a low melting point material ( 300 );at least one heater means ( 400 ); andmeans suitable for throttling the low melting point material ( 300 ) in the liquid state, after the heater means ( 400 ) have operated, thereby performing a shock-absorbing function, wherein said device further comprises at least two concentric surfaces ( 154 , 216 ; 152 , 218 ) defining, a set of clearances between them and provided respectively on parts ( 150 , 200 ) that are capable of moving in order to throttle the low melting point material ( 300 ) through the set of clearances defined between said concentric surfaces. 2. A device according to claim 1, characterized that the fact that the low melting point metal ( 300 ) is adapted to perform soldering, and by the fact that the device further comprises a structure presenting architecture that possesses a zone that is blocked by the low melting point metal ( 300 ) and that is capable of being released by the low melting point material liquefying when the heater means are operated. 3. A device according to claim 1, characterized by the fact that the heater means comprise a pyrotechnical composition ( 4 . 00 , 410 ) designed to generate a volume of gas that is sufficient to drive relative displacement of the two parts ( 100 , 200 ) of the device. 4. A device according to claim 1, characterized by the fact that the chamber ( 310 ) housing the melting point material ( 300 ) is thermally insulated from the external environment. 5. A device according to claim 1, characterized by the fact that it has an external element, such as a resilient member of an element working in traction, suitable for driving relative displacement between the two parts ( 100 , 200 ) of the device after the heater means ( 400 ) have been operated. 6. A device according to claim 1, characterized by the fact that it comprises an outer shell body ( 110 ) that is thermally insulating. 7. A device according to claim 1, characterized by the fact that it includes a piston ( 200 ) suitable for being moved out from a shell body after the heater means ( 200 ) have been operated, thereby forming a linear actuator. 8. A device according to claim 1, characterized by the fact that it has two parts ( 100 , 230 ) capable of relative movement for releasing an assembly when the heater means are operated. 9. A device according to claim 1, characterized by the fact that it includes a nut ( 230 ) suitable for being released when the heater means are operated. 10. A device according to claim 1, characterized by the fact that it has a nut ( 230 ) made up of a plurality of segments uniformly distributed around an axis and suitable for being released when the heater means are operated. 11. A device according to claim 1, characterized by the fact that it includes a clamp structure constituted by a plurality of general axially extending segments ( 194 ) uniformly distributed around an axis 0—0 and suitable for moving towards one another during displacement of a piston ( 200 ) having an actuator surface in the form of a truncated cone, after the heater means ( 400 ) have been operated. 12. A device according to claim 1, characterized by the fact that it includes an initiator ( 160 ) associated with the heater means ( 400 ). 13. A device according to claim 1, characterized by the fact that the mechanism constitutes a pyromechanism. 14. A device according to claim 1, characterized by the fact that the heater means ( 400 ) comprise at least one highly exothermal pyrotechnical composition. 15. A device according to claim 1, characterized by the fact that the heater means ( 400 ) comprise electrical heater means. 16. A device according to any one of claims 1 to 25, characterized by the fact that the low melting point material ( 300 ) is selected from the group comprising paraffin and eutectic alloys. 17. A device accord ing to claim 1, characterized by the fact that the low melting point material ( 300 ) is selected from the group comprising paraffin and eutectic alloys. 18. A device according to claim 1, characterized by the fact that the heater means comprises two pyrotechnical compositions ( 400 , 410 ), respectively one composition that is highly exothermal and another composition that generates gas, thereby respectively melting the low melting point material ( 300 ) and driving the structure. 19. A device according to claim 18, characterized by the fact that the two pyrotechnical compositions ( 400 , 410 ) communicate via a pyrotechnical delay ( 420 ). 20. A device according to claim 18, characterized by the fact that the two pyrotechnical compositions ( 400 , 410 ) are actuated by respective initiators ( 180 , 182 ). 21. A mechanism-forming device, in particular for application in space, the device being characterized in that it comprises in combination:a low melting point material ( 300 );at least one heater means ( 400 ); andmeans suitable for throttling the low melting point material ( 300 ) in the liquid state, after the heater means ( 400 ) have operated, thereby performing a shock-absorbing function, wherein said device comprises at least one calibrated bore opening out into a chamber containing the low melting point material ( 300 ) for throttling purposes. 22. A device according to claim 21, characterized that the fact that the low melting point metal ( 300 ) is adapted to perform soldering, and by the fact that the device further comprises a structure presenting architecture that possesses a zone that is blocked by the low melting point metal ( 300 ) and that is capable of being released by the low melting point material liquefying when the heater means are operated. 23. A device according to claim 21, characterized by the fact that the heater means comprise a pyrotechnical composition ( 400 , 410 ) designed to generate a volume of gas that is sufficient to drive relative displacement of the two parts ( 100 , 200 ) of the device. 24. A device according to claim 21, characterized by the fact that it has an external element, such as a resilient member of an element working in traction, suitable for driving relative displacement between the two parts ( 100 , 200 ) of the device after the heater means ( 400 ) have been operated. 25. A device according to claim 21, characterized by the fact that the low melting point material ( 300 ) is situated in a chamber ( 310 ) designed to be reduced in volume during operation of the heater means ( 400 ). 26. A device according to claim 21, characterized by the fact that the chamber ( 310 ) housing the melting point material ( 300 ) is thermally insulated from the external environment. 27. A device according to claim 21, characterized by the fact that it comprises an outer shell body ( 110 ) that is thermally insulating. 28. A device according to claim 21, characterized by the fact that it includes a piston ( 200 ) suitable for being moved out from a shell body after the heater means ( 200 ) have been operated, thereby forming a linear actuator. 29. A device according to claim 21, characterized by the fact that it has two parts ( 100 , 230 ) capable of relative movement for releasing an assembly when the heater means are operated. 30. A device according to claim 21, characterized by the fact that it includes, a nut ( 230 ) suitable for being released when the heater means are operated. 31. A device according to claim 21, characterized by the fact that it has a nut ( 230 ) made up of a plurality of segments uniformly distributed around an axis and suitable for being released when the heater means are operated. 32. A device according to claim 21, characterized by the fact that it includes a clamp structure constituted by a plurality of general axially extending segments ( 194 ) uniformly distributed around an axis 0—0 and suitable for moving towards one another during displacement of a pis ton ( 200 ) having an actuator surface in the form of a truncated cone, after the heater means ( 400 ) have been operated. 33. A device according to claim 21, characterized by the fact that it includes an initiator ( 160 ) associated with the heater means ( 400 ). 34. A device according to claim 21, characterized by the fact that the mechanism constitutes a pyromechanism. 35. A device according to claim 21, characterized by the fact that the heater means ( 400 ) comprise at least one highly exothermal pyrotechnical composition. 36. A device according to claim 21, characterized by the fact that the heater means ( 400 ) comprise electrical heater means. 37. A device according to any one of claims 1 to 25, characterized by the fact that the low melting point material ( 300 ) is selected from the group comprising paraffin and eutectic alloys. 38. A device according to claim 21, characterized by the fact that the low melting point material ( 300 ) is selected from the group comprising paraffin and eutectic alloys. 39. A device according to claim 21, characterized by the fact that the chamber ( 310 ) housing the melting point material ( 300 ) is defined by two L shaped structures, each possessing both an axially extending wall ( 152 , 216 ) and a radially-extending wall ( 254 , 218 ) secured respectively to two assemblies ( 100 , 200 ) capable of relative movement. 40. A device according to claim 39, characterized by the fact that the chamber ( 310 ) housing the melting point material ( 300 ) is defined at least in part by a ring ( 150 ) secured to a fixed body ( 110 ). 41. A device according to claim 40, characterized by the fact that the ring ( 150 ) is clamped between an outer shell body ( 110 ) and a closure plug ( 130 ). 42. A device according to claim 21, characterized by the fact that the heater means comprises two pyrotechnical compositions ( 400 , 410 ), respectively one composition that is highly exothermal and another composition that generates gas, thereby respectively melting the low melting point material ( 300 ) and driving the; structure. 43. A device according to claim 42, characterized by the fact that the two pyrotechnical compositions ( 400 , 410 ) communicate via a pyrotechnical delay ( 420 ). 44. A device according to claim 42, characterized by the fact that the two pyrotechnical compositions ( 400 , 410 ) are actuated by respective initiators ( 180 , 182 ). 45. A mechanism-forming device, in particular for application in space, the device being characterized in that it comprises in combination:a low melting point material ( 300 );at least one heater means ( 400 ); andmeans suitable for throttling the low melting point material ( 300 ) in the liquid state, after the heater means ( 400 ) have operated, thereby performing a shock-absorbing function, wherein the heater means comprise a pyrotechnical composition ( 400 , 410 ) designed to generate a volume of gas that is sufficient to drive a relative displacement of two parts ( 100 , 200 ) of the device. 46. A device according to claim 45, characterized that the fact that the low melting point metal ( 300 ) is adapted to perform soldering, and by the fact that the device further comprises a structure presenting architecture that possesses a zone that is blocked by the low melting point metal ( 300 ) and that is capable of being released by the low melting point material liquefying when the heater means are operated. 47. A device according to claim 45, characterized by the fact that it comprises at least two concentric surfaces ( 154 , 216 ; 152 , 218 ) provided respectively on parts ( 150 , 200 ) that are capable of moving in order to throttle the low melting point material ( 300 ).