Search

JP-7854683-B2 - Recovery device and recovery method

JP7854683B2JP 7854683 B2JP7854683 B2JP 7854683B2JP-7854683-B2

Inventors

  • 矢野 正康
  • 山縣 真
  • 五十嵐 充
  • 玉川 雄三
  • 前原 健次
  • 羽生 宏人
  • 山田 和彦

Assignees

  • エアロトヨタ株式会社
  • 国立研究開発法人宇宙航空研究開発機構

Dates

Publication Date
20260507
Application Date
20220902

Claims (7)

  1. The first rope and, A sea anchor is dropped from a flying object capable of remaining stationary in the air, while connected to the first rope, A collection bag for collecting debris floating on the water surface, A second rope is connected to the aforementioned collection bag and is provided to be towable along the first rope, A locking mechanism that locks the collection bag at a predetermined position on the first rope when the second rope, which is connected to the collection bag containing the collected items, is pulled, A recovery device comprising a recovery mechanism that pulls a second rope while the first rope between the sea anchor and the locking mechanism is stretched, thereby recovering the recovery bag from the flying object.
  2. The collection bag further comprises a sea anchor equipped with a capture bag for capturing the recovered object, The recovery device according to claim 1, wherein the recovery bag is provided inside the capture bag so as to be separable from the capture bag.
  3. The recovery device according to claim 2, further comprising at least one float provided for the capture bag.
  4. The aforementioned locking mechanism is A fixing stopper is provided at a predetermined position on the first rope, The collection device according to claim 1, further comprising a movable stopper provided for the collection bag which is locked in the position of the fixed stopper.
  5. The aforementioned fixing stopper includes first and second fixing stoppers, The movable stopper includes first and second movable stoppers for locking in their respective positions, corresponding to the first and second fixed stoppers, The first movable stopper is provided with respect to the opening of the collection bag, The recovery device according to claim 4, wherein the second movable stopper is provided on the bottom of the recovery bag.
  6. The recovery device according to claim 1, wherein the sea anchor is a bucket with a hole in the bottom.
  7. The steps include: dropping a sea anchor from a flying object capable of hovering in mid-air while it is connected to the first rope; The steps include collecting the floating debris in the water into a collection bag, A step of pulling a second rope that is connected to the aforementioned collection bag and is provided to be towable along the first rope, The steps include: when the second rope, which is connected to the collection bag containing the collected items, is towed, the collection bag is secured at a predetermined position on the first rope using a locking mechanism ; A recovery method comprising the steps of: pulling the second rope while the first rope between the sea anchor and the locking mechanism is stretched, thereby recovering the recovery bag from the flying object.

Description

This disclosure relates to a recovery device and method for recovering objects floating on the water surface. Traditionally, maritime recovery operations have been carried out using recovery vessels. In these cases, the work is performed using equipment mounted on the vessel (see Patent Document 1). On the other hand, since it is difficult for recovery vessels to quickly reach the scene, various methods have been proposed for using helicopters, drones, etc., to quickly reach the scene and recover the materials (see Patent Documents 2-4). Japanese Patent Application Publication No. 5-506627Japanese Patent Application Publication No. 57-134388Patent No. 6557089Patent No. 6593771 This figure illustrates an example of an aircraft 100 according to an embodiment.This figure illustrates the recovery process of recovered CP using a recovery device according to an embodiment.This is a flowchart illustrating a method for recovering recovered material CP according to an embodiment.This diagram illustrates the method of securing the collection bag 40 to the first rope L1 according to an embodiment. The embodiments will be described in detail with reference to the drawings. Note that identical or corresponding parts in the drawings are denoted by the same reference numerals, and their descriptions will not be repeated. Figure 1 illustrates an example of an aircraft 100 according to an embodiment. Referring to Figure 1, the aircraft 100 is equipped with a recovery device for recovering the recovered material. In this example, aircraft 100 is a helicopter, a flying object capable of hovering in the air. However, it is not limited to helicopters and may include, for example, drones (unmanned aerial vehicles), radio-controlled flying objects, etc. The recovered CP (Computer Packet) may, for example, be a capsule floating on the water, and for example, this capsule may contain a memory device storing data. The recovery device includes a first rope L1, a sea anchor dropped from an aircraft 100 capable of hovering in the air while connected to the first rope L1, a recovery bag 40 for recovering the recovered object CP floating on the water surface, a second rope L2 connected to the recovery bag 40 and provided to be towable along the first rope L1, a locking mechanism for locking the recovery bag 40 at a predetermined position on the first rope when the second rope, which is connected to the recovery bag 40 after the recovered object CP has been recovered, is towed, and a recovery mechanism for recovering the recovery bag 40 to the aircraft 100 by towing the second rope L2 while the first rope L1 between the sea anchor and the locking mechanism is taut. More specifically, in this example, the tip of the first rope L1 is tied to the capture bag 45, and a bucket 20, which serves as a sea anchor, is attached to the capture bag 45. The capture bag 45 captures the collected objects (capsules) floating on the water surface. Inside the capture bag 45, there is a collection bag 40 that is detachably installed from the capture bag 45 for collecting the collected items. In this example, the collection bag 40 inside the capture bag collects the items floating on the water surface together with the capture bag 45. In this example, a configuration in which the collection bag 40 is installed inside the capture bag 45 is described as an example, but a configuration without the capture bag 45 is also possible. In that case, the bucket 20, which will serve as the sea anchor, and the first rope L1 will be directly connected. The capture bag 45 may be equipped with a float. The float provides buoyancy, making the capture bag 45 easier to manipulate on the water surface. This facilitates the collection of floating objects into the recovery bag 40 located inside the capture bag 45. The locking mechanism consists of a fixed stopper and a movable stopper. More specifically, a fixed stopper is provided at a predetermined position on the first rope L1. A movable stopper is also provided on the retrieval bag 40 and locks into place at the fixed stopper when the second rope L2 is pulled. In this example, fixed stoppers 30 and 32 are provided for the first rope L1, and movable stoppers 34 and 36 are provided for the second rope L2, which engage with the fixed stoppers 30 and 32 at their respective positions. While this example describes two fixed stoppers 30 and 32 and two movable stoppers 34 and 36, it is also possible to use only one fixed stopper and one movable stopper. The retrieval mechanism includes a pulley 10 on which the second rope L2 is suspended, and a weight 70 connected to the second rope L2. By lowering weight 70 downwards, the second rope L2 is pulled via pulley 10. In this example, when the weight 70 is lowered, the second rope L2 is pulled, and the retrieval bag 40 is locked to the first rope L1 at a predetermined position by the locking mechanism. Specifically, a movable stopper provided for the second rope L2 is locked by a fixed sto