JP4627488B2 - Parachute erroneous discharge prevention device and method for transporting flying object with parachute erroneous discharge prevention device - Google Patents

Description

  The present invention, for example, releases a parachute from the parachute storage part of the flying object when the parachute pushing device is erroneously operated while the flying object carrying the parachute is suspended from the transport aircraft and transported to the test point. The present invention relates to a parachute erroneous discharge prevention device used to prevent the occurrence of the trouble and a method of transporting a flying object with a parachute erroneous discharge prevention device.

Conventionally, as a parachute erroneous discharge prevention device as described above, a lid that closes the parachute storage part that opens toward the outside of the aircraft body and a pin fixed to the parachute storage part side by a pin are allowed to release the parachute. In some cases, there are provided a stopper for restraining the lid to the parachute storage part side until a stage and a pyrotechnic that pulls out a pin and releases the restraint of the lid by the stopper in the parachute release permitting stage.
JP-A-5-132000 JP 59-164299 A

  However, in the conventional parachute erroneous discharge prevention device, as described above, since pyrotechnics are used to release the restraint of the lid body by the stopper, it is expensive and easy to handle. In addition to not being able to say, there was a problem that complicated procedures such as application for consumption of pyrotechnics had to be performed.

  In addition, because of the use of pyrotechnics, it is necessary to provide a pressure-resistant structure around the opening of the parachute storage part, and to protect electronic equipment located near this parachute false discharge prevention device from pyrotechnic impact. It is necessary to take measures, and as a result, there is a problem that the mass of the airframe becomes large, and it has been a conventional problem to solve these problems.

  The present invention has been made by paying attention to the above-described conventional problems, and even if the parachute extrusion device operates unexpectedly, it is possible to prevent the parachute from being accidentally released. Needless to say, it is possible to reduce costs and improve handling while eliminating the need for complicated procedures such as application for consumption of pyrotechnics, and in addition, around the opening of the parachute storage part of the aircraft It is not necessary to adopt a pressure-resistant structure for the device, and it is not necessary to design impact resistance for the surrounding electronic equipment. An object of the present invention is to provide a method for transporting a flying object with a prevention device.

  The present invention includes a lid that closes a cylindrical parachute storage part that opens toward the outside of the aircraft body, and the lid is attached to the parachute storage part until the release of the parachute stored in the parachute storage part is allowed. In the parachute erroneous discharge prevention device provided with a stopper that is restrained to the side and that can release the restraint of the lid when the parachute is allowed to be released, the parachute is housed in a state where the stopper is mounted and the stopper is positioned at a predetermined position. A belt wound around the periphery of the belt, a latch mechanism for releasably connecting the belt ends wound around the parachute storage portion, and driving the latch mechanism to separate the belt ends from each other. It is characterized by the provision of an electric actuator that separates the belt from the periphery of the parachute storage part together with the stopper And it has, and a means for solving the conventional problems described above the construction of such a parachute erroneous discharge prevention device.

  Further, according to the method for transporting a flying object with a parachute erroneous discharge preventing device of the present invention, when the flying object equipped with the parachute erroneous discharge preventing device according to claim 2 is suspended and transported by the transport aircraft, In addition, an electric actuator is disposed on the belt, and a drive wire is slackened between the electric actuator and a latch mechanism that couples belt ends wound around the parachute storage portion. A configuration is provided in which a steady resting wire is stretched between the flying body and the transporter side, and the flying body is restrained from shaking by the steadying wire.

  Since the parachute erroneous discharge prevention device of the present invention has the above-described configuration, it is possible to reliably prevent erroneous discharge of the parachute and to omit complicated procedures such as application for consumption of pyrotechnics. In addition, it is possible to realize a very excellent effect that it is possible to realize a reduction in cost and an improvement in handleability, and a reduction in the mass of the airframe.

  Further, since the method for transporting a flying object with a parachute erroneous emission preventing device according to the present invention has the above-described configuration, even if the flying object is shaken when the flying object is suspended and transported, As a result, the flying of the flying object is suppressed, and therefore, the driving wire is pulled toward the flying object by the shaking of the flying object, that is, the occurrence of a situation where the latch mechanism separates due to the flying object's shaking is prevented. This is a very good effect.

  In the parachute erroneous discharge prevention device of the present invention, a drive wire may be provided between the electric actuator and the latch mechanism, and the latch mechanism may be separated and driven by a winding operation of the drive wire of the electric actuator.

  In this case, since the latch mechanism can be separated and driven only by winding up one drive wire of the electric actuator, the structure can be simplified.

  Further, in the parachute erroneous discharge preventing device of the present invention, the belt and the drive wire are connected, and the belt can be wound up following the drive wire by winding up the drive wire of the electric actuator. it can.

  If this configuration is adopted, the latch mechanism can be separated and driven only by the winding operation of one drive wire of the electric actuator, and the belt can be wound, so that the structure can be simplified. In addition, interference of the belt with the flying object is avoided.

  Hereinafter, the present invention will be described with reference to the drawings, but the present invention is not limited to the following examples.

  FIGS. 1-6 has shown one Example of the parachute false discharge prevention apparatus of this invention, In this Example, the case where the flying body of this invention is a rocket is shown.

  As shown schematically in FIG. 1, the rocket 1 includes a parachute storage unit 3 that opens a parachute (a drogue chute and a main chute that opens following the drogue chute) P toward the rear located at the tail of the airframe 2. And a parachute pushing device 5 having a parachute pushing spring and a parachute pushing mechanism 4 (not shown) for pushing the parachute P housed in the parachute housing part 3 to the outside of the machine body 2 and a parachute erroneous discharge preventing device 10. I have.

  The parachute erroneous discharge prevention device 10 is engaged with the lid 11 that closes the parachute storage 3 and the parachute storage 3 and the lid 11 at three locations around the cylindrical parachute storage 3. Then, three stoppers 12 for restraining the lid 11 to the parachute storage part 3 side until the release of the parachute P is allowed, and these stoppers 12 are attached to one surface and are respectively attached to predetermined locking portions. The belt 13 wound around the parachute storage unit 3 in a positioned state, the latch mechanism 20 that releasably couples the ends of the belt 13 wound around the parachute storage unit 3, and the latch mechanism 20 is driven. The belt 13 is separated from the periphery of the parachute storage portion 3 together with the stopper 12 by separating the ends of the belt 13 from each other. And an electric actuator 14 for.

  In this case, as shown in FIG. 2, the latch mechanism 20 includes a base plate 21 having a coupling hole 21 a provided at one end of the belt 13 and a coupling having a coupling hole 22 a provided at the other end of the belt 13. A plate 22 is provided.

  As shown in FIG. 3, the base plate 21 includes a holder plate 23 disposed so as to face the coupling hole 21 a in the base plate 21, and is supported by the holder plate 23 in a through state so as to pass through the coupling hole 21 a of the base plate 21. On the other hand, a coupling pin 24 that can be inserted and removed, and a direction in which the coupling pin 24 is fitted to a portion between the head of the coupling pin 24 and the holder plate 23 and is detached from the coupling hole 21a of the base plate 21 (FIG. 3). A compression spring 25 for applying an upward force and a retaining ring 26 fixed to a portion of the coupling pin 24 located between the base plate 21 and the holder plate 23 are provided.

  On the other hand, the coupling plate 22 is inserted between the base plate 21 and the holder plate 23, and the coupling pin 22 that is sequentially inserted into the coupling holes 22a and 21a of the laminated coupling plate 22 and the base plate 21 is removed. A block 27 that can be inserted between the retaining ring 26 and the holder plate 23, and is positioned between the block 27 and the electric actuator 14, and the block 27 is removed by the winding operation of the electric actuator 14. A pull-out wire (drive wire) 28 is provided to be separated from the space 23. At this time, a wire guide 29 is provided on the belt 13 to prevent the pull-out wire 28 from being detached from the belt 13.

  That is, in this latch mechanism 20, the coupling pins 24 are sequentially inserted through the coupling holes 22a and 21a of the coupling plate 22 and the base plate 21 that overlap each other against the elastic force of the compression spring 25, and in this state, the retaining ring 26 By inserting the block 27 between the holder plate 23 and the holder plate 23 (the state shown in FIG. 3A), the movement of the coupling pin 24 in the direction of separating from the coupling holes 22a and 21a is restricted, that is, the belt 13 is maintained, and the block 27 is pulled out from between the retaining ring 26 and the holder plate 23 by the winding operation of the pulling wire 28 of the electric actuator 14 (the state shown in FIG. 3B). Thus, the movement restriction in the direction in which the coupling pin 24 is detached from each coupling hole 22a, 21a is released, that is, the belt 13 It is adapted to release the end.

  When the rocket 1 equipped with the parachute erroneous discharge prevention device 10 is suspended from a transport aircraft, for example, when transported to a test point, as shown in FIG. 4, the transport aircraft side where the rocket 1 is suspended substantially horizontally. A block of a latch mechanism 20 that couples the electric actuator 14 of the parachute erroneous discharge prevention device 10 to the suspension jig 30 and the ends of the belt 13 wound around the parachute storage portion 3. 27, the pulling wire 28 is hung in a relaxed state.

  At this time, since the rocket 1 is shaken during transportation, tension is applied to the pull-out wire 28 and the block 27 of the latch mechanism 20 is not pulled. 31 is wound between the belt 13 wound around the parachute storage portion 3 and the hanging jig 30, and the swinging wire 31 suppresses the swing of the rocket 1.

  Then, at the stage of arriving at the test point (parachute discharge allowable stage), as shown in FIG. 5, the electric actuator 14 of the parachute erroneous discharge prevention device 10 is wound so that the drum provided in the electric actuator 14 15, the block 27 is pulled out from between the retaining ring 26 and the holder plate 23 to release both ends of the belt 13, and the belt 13 together with the stopper 12 is released from the periphery of the parachute storage portion 3. The latch mechanism 20 hangs down as a weight after being separated, that is, the parachute P is allowed to be released.

  At this time, the block 27 is hooked on the wire guide 29 of the belt 13 that is separated from the periphery of the parachute storage portion 3, so that when the electric actuator 14 continues the winding operation, as shown in FIG. 28, the belt 13 and the steadying wire 31 are also wound up. Therefore, it is avoided that the pull-out wire 28 and the belt 13 of the parachute erroneous discharge prevention device 10 interfere with the rocket 1 during the test. The Rukoto.

  In the parachute erroneous discharge prevention device 10 described above, the lid 11 that closes the parachute storage 3 and the three portions around the cylindrical parachute storage 3 straddle the parachute storage 3 and the lid 11 respectively. The three stoppers 12 that restrain the lid 11 to the parachute storage part 3 side until the release of the parachute P is allowed, and the parachute in a state where these stoppers 12 are positioned at predetermined locking portions, respectively. A belt 13 wound around the storage portion 3, a latch mechanism 20 that releasably couples the ends of the belt 13 wound around the parachute storage portion 3, and an end of the belt 13 by driving the latch mechanism 20 By separating the parts from each other, an electric actuator that separates the belt 13 together with the stopper 12 from the periphery of the parachute storage part 3 is provided. Since the structure including the tutor 14 is used, it is possible to surely prevent the erroneous release of the parachute P, and it is possible to omit complicated procedures such as application for the consumption of pyrotechnics, which has been necessary in the past. It is possible to reduce the cost and improve the handleability, and contribute to the reduction of the mass of the aircraft.

  Further, in the method of transporting the rocket 1 equipped with the parachute erroneous discharge prevention device 10 described above, the steadying wire 31 that is less slack than the pull-out wire 28 of the parachute erroneous discharge prevention device 10 is attached to the belt 13 and the hanging jig 30. Therefore, even when the rocket 1 is shaken when the rocket 1 is suspended and transported, the steadying wire 31 suppresses the shake of the rocket 1. Therefore, it is possible to prevent the occurrence of a situation in which the pulling wire 28 is tensioned and the block 27 of the latch mechanism 20 is pulled, that is, the latch mechanism 20 is separated due to the swing of the rocket 1. .

It is a fragmentary perspective view showing simply the parachute false discharge prevention device by one example of the present invention. Example 1 FIG. 2 is an overall perspective view of a belt including a stopper and a latch mechanism of the parachute erroneous discharge prevention device of FIG. 1. Example 1 FIG. 3 is a perspective explanatory view (a) in a state where the end portions of the belt are coupled in detail and a perspective explanatory view (b) in a state where the end portions of the belt are released, showing the latch mechanism in FIG. 2 in detail. Example 1 It is side surface explanatory drawing of the state which suspends and conveys the rocket carrying the parachute false discharge | release prevention apparatus of FIG. It is side surface explanatory drawing of the state which act | operated the latch mechanism of the parachute false discharge | release prevention apparatus in the parachute discharge | release allowance stage, and released the edge part of the belt. It is side surface explanatory drawing of the state which wound up the belt which released the edge part in the parachute discharge | release allowance stage to the transport machine side.

Explanation of symbols

1 Rocket (flying object)
DESCRIPTION OF SYMBOLS 2 Airframe 3 Parachute storage part 10 Parachute false discharge prevention apparatus 11 Cover body 12 Stopper 13 Belt 14 Electric actuator 20 Latch mechanism 28 Pull-out wire (drive wire)
31 steady rest wire P parachute

Claims (4)

  The lid that closes the parachute storage part that forms a cylindrical shape that opens toward the outside of the aircraft, and the lid is restrained to the parachute storage part until the release of the parachute stored in the parachute storage part is allowed. In addition, in the parachute erroneous discharge prevention device provided with a stopper capable of releasing the lid restraint at the parachute discharge permissible stage, the stopper is mounted and the stopper is positioned at a predetermined portion around the parachute storage portion. A belt mechanism, a latch mechanism that detachably couples the belt ends wound around the parachute storage unit, and a belt mechanism that drives the latch mechanism to separate the belt ends from each other. A parachute error characterized by the provision of an electric actuator that separates the belt from the surroundings together with the stopper Prevention device out.   The parachute false discharge prevention device according to claim 1, wherein a drive wire is provided between the electric actuator and the latch mechanism, and the latch mechanism is driven separately by winding operation of the drive wire of the electric actuator.   The parachute erroneous discharge prevention device according to claim 2, wherein the belt and the drive wire are connected, and the belt can be wound after the drive wire by winding the drive wire of the electric actuator.   When the flying object equipped with the parachute false discharge prevention device according to claim 2 or 3 is suspended and transported by the transport aircraft, an electric actuator is disposed on the transport aircraft side, and the electric actuator and the parachute storage portion are disposed around the electric actuator. The drive wire is slackened between the wrapped belt and the latch mechanism that joins the ends of the belt, and the steady wire that is less slack than the drive wire is hung between the flying object and the transporter side. A method for transporting a flying object with a parachute erroneous discharge prevention device, characterized in that the swinging wire is used to suppress the swinging of the flying object.

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