JP4379784B2 - Slow descent device - Google Patents

Description

  The present invention relates to a slow descent device used for slowly lowering a recovery target when recovering a recovery target falling from a high altitude, such as a space capsule re-entering the atmosphere from outer space.

In general, an object to be collected such as a capsule for space that has re-entered the atmosphere from outer space opens a parachute at a predetermined altitude and decelerates, and then slowly descends by this parachute to land (land). At this time, the to-be-recovered body is transmitting a signal from the mounted transmitter. On the other hand, on the side of collecting the object to be recovered, the position is determined by receiving a signal from the object to be recovered in an aircraft or a ship, and finally the object to be recovered is recovered.
JP-A-9-301297

  However, in the recovery of the recovery target as described above, when the transmitter mounted on the recovery target breaks down due to the mechanical environment or the space environment, the means for determining the position of the recovery target to be lowered is lost. Since it may be difficult to collect the object to be collected, it has been a problem to solve such a problem.

The present invention provides a device for shallow dive the object collecting body falling from high altitude, comprising a radio wave reflector to deploy with parachute to slow down the object collecting body made wave reflector from a large number of small pieces, these pieces in the state of being housed inside the canopy parachute housed in a predetermined housing part with parachutes from canopy slit with release of parachute configured to spray a large number of small pieces on the outside, also, as a path La Chute, finally released The main parachute and the at least one pilot chute are provided so as to be capable of being emitted in order, and each parachute is provided with a radio wave reflector, and the above configuration serves as means for solving the problems.

  According to the slow descent device of the present invention, since the radio wave reflector is deployed together with the parachute, it can be easily captured by a weather radar usually mounted on an aircraft or a ship, and a signal transceiver is not used. Also, the position of the object to be collected can be specified.

  Further, according to the slow descent device of the present invention, since the radio wave reflector is made into a large number of small pieces, and these small pieces are scattered together with the emission of the parachute, the radio wave reflector is spread over a wide area and captured by the weather radar. The structure can be made more reliable, and the structure is simple and lightweight, and the operation reliability is very high.

  Furthermore, according to the slow descent device of the present invention, a large number of small pieces, which are radio wave reflectors, are accommodated inside the canopy of the parachute, and a large number of small pieces are scattered outward from the slits of the canopy. In this way, a large number of small pieces can be continuously sprayed, so that the radio wave reflector can be spread over a wider area along the trajectory of the object to be collected, and the direction in which the object to be collected is flowing is specified. It becomes easy.

  Further, according to the slow descent device of the present invention, since the main parachute and the pilot chute as the parachute are provided with the radio wave reflectors, it is possible to capture by the weather radar from the time when the pilot chute is released. The acquisition time by the radar can be obtained longer, and the recovery performance of the recovery target can be further improved.

  The recovered object 1 shown in FIG. 1 is a spacecraft that is reentered into the atmosphere after completing a predetermined mission in outer space, and is recovered in addition to observation equipment (not shown). A main parachute 2 for slowly lowering the body 1 and a pilot chute 3 for pulling out the main parachute 2 are sequentially mounted so as to be able to be released.

  These parachutes 2 and 3 are stored in the storage portion 4 of the body 1 to be recovered. In particular, the main parachute 2 is stored in a storage bag 5 in a folded state, and the storage body 1 is stored together with the storage bag 5. Part 4 is housed. The main parachute 2 includes a canopy 6 and a suspension rope 7 formed with a plurality of slits 6a in order to obtain a predetermined descending speed, and connects the suspension rope 7 to the body 1 to be collected. The pilot chute 3 is similarly provided with a canopy 8 and a suspension cable 9, and the suspension cable 9 is connected to the storage bag 5.

  In addition to the two parachutes 2 and 3 described above, the slow descent device for the object to be collected 1 includes a radio wave reflector that expands with the discharge of the parachutes 2 and 3. Make up body. These small pieces 10 are made of, for example, an aluminum foil attached to a base material made of a thin cloth, and are extremely light weight, and are adapted to receive radar waves of a weather radar usually mounted on an aircraft or a ship. It is a reflection.

  Here, in the slow descent device of this embodiment, the main parachute 2 is stored in the storage part 4 of the body 1 to be collected together with the storage bag 5 with a large number of small pieces 10 placed inside the canopy 6 of the main parachute 2. Thereafter, the pilot chute 3 and a large number of small pieces 10 are accommodated in the accommodating portion 4. At this time, a large number of small pieces 10 may be placed between the folded main parachute 2 and the storage bag 5.

  As shown in FIG. 1 (b), the apparatus for slowly descending the object to be recovered 1 having the above-described configuration is shown in FIG. 1 (b) when the object to be recovered 1 re-enters the atmosphere and reaches a predetermined altitude as shown in FIG. The pilot chute 3 is discharged to a large number, and along with this, a large number of small pieces 10 which are radio wave reflectors are dispersed. That is, the radio wave reflector is spread over a wide area.

  Next, the slow descent device pulls out the storage bag 5 from the body 1 to be collected as shown in FIG. 1 (c) by the pilot chute 3, and then from the storage bag 5 as shown in FIG. 1 (d). Release parachute 2. When the main parachute 2 is released in this way, a large number of small pieces 10 are sprayed accordingly. At this time, in the slow descent device, a large number of small pieces 10 are accommodated inside the canopy 6 of the main parachute 2, so that these small pieces 10 are not sprayed all at once, but from the slit 6 a of the canopy 6 to the outside. As the main parachute 2 descends, the small pieces 10 are continuously dispersed. Thereby, in the said gentle descent apparatus, a radio wave reflector is expand | deployed more widely along the fall locus | trajectory of the to-be-recovered body 1. FIG.

  For the slow descent device operating as described above, the aircraft A and the ship S shown in FIG. In other words, according to the slow descent device, by spreading a large number of small pieces 10 and deploying the radio wave reflector over a wide area, it can be easily captured by the weather radar normally mounted on the aircraft A or the ship S. In addition, the position of the object to be collected 1 can be specified without using a signal transceiver.

  In addition, the slow descent device is very simple and light in weight, so it is suitable for spacecraft and flying objects with large weight restrictions. Although reliable location is possible, it is possible to reduce the weight of spacecraft and flying objects by eliminating the transmitter / receiver for collection because it is highly reliable in operation and can be reliably captured by weather radar become.

  Further, the slow descent device may be provided with a radio wave reflector only on the main parachute 2, but if the pilot chute 3 is also provided with a radio wave reflector as in the above embodiment, FIG. As shown in b), the radar can be captured by the meteorological radar from the time when the pilot chute 3 is released, the capture time can be increased, and the recovery performance of the recovery target can be further enhanced.

Further, in the above embodiment, the radio wave reflector was assumed to consist of a large number of small pieces 10, for example, it may be a combination of a radio wave reflector adhered to the small pieces 10 of the large number canopy 6. The radio wave reflector is not particularly limited in material as long as it sufficiently reflects the radar wave of the meteorological radar, and has little influence on the ocean and soil in consideration of after dumping. It is also effective to use materials.

  Further, in the above embodiment, the case where the object to be recovered is a spacecraft that re-enters the atmosphere from outer space is exemplified, but the object to be recovered in the present invention is one that falls and recovers from a high altitude. For example, an observation rocket used in the atmosphere is also included.

In one Example of the gentle descent apparatus concerning this invention, it is each explanatory drawing (a)-(e) which shows the descent | fall process of a to-be-collected body.

Explanation of symbols

1 Object 2 Main parachute (parachute)
3 Pilot shot (parachute)
4 Storage 6 Canopy 6a Slit 10 Small piece (Radio wave reflector)

Claims (2)

In the device that slowly descends the object to be collected falling from high altitude, it has a radio wave reflector that deploys with the parachute that slowly descends the object to be collected ,
The radio wave reflector consists of a large number of small pieces, and these small pieces are stored inside the parachute canopy and stored together with the parachute in a predetermined storage part. When the parachute is released, a large number of small pieces are sprayed to the outside from the canopy slit. A slow descent device characterized by: The slow descent device according to claim 1 , wherein a main parachute to be finally released and at least one pilot chute are provided in order so that the parachute can be released in order, and a radio wave reflector is provided on each parachute .

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