JP2019052792A - Flying object holding device - Google Patents

Abstract

To provide a flying object holding device having a simple structure and capable of stably holding a flying object.SOLUTION: A flying object holding device 1 of the present invention vertically holds a flying object at a mast 2 vertically extending along the flying object. The device comprises: a damper 4 which has one end fixed to the mast 2; a rope 5 which has one end fixed to the other end of the damper 4 and has the other end fixed to the flying object; and a restoration mechanism 6 which returns the damper 4 to its initial position when the damper 4 is displaced. Thus, the device stably holds the flying object.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a flying object holding device.

  When launching a flying object such as a rocket, the flying object is held in a state substantially perpendicular to the ground by a holding device. As a specific example of such an apparatus, one described in Patent Document 1 below is known. The attitude control device described in Patent Literature 1 includes a flexible joint and a swing device provided at both ends of a rod-shaped nozzle. Thereby, even if external force such as wind is applied, it is said that the attitude of the rocket can be maintained.

Japanese Examined Patent Publication No. 62-028303

  However, the apparatus as described in Patent Document 1 has not only a complicated mechanism but also a separate apparatus for separation from the flying object. Further, when an external force is applied, a reaction force is applied to the surface of the flying object. For this reason, it is necessary to ensure the strength of the flying object itself. Therefore, the cost is likely to increase.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a flying object holding apparatus that has a simple structure and can stably hold a flying object.

  According to the first aspect of the present invention, the flying object holding device is a flying object holding device that holds a flying object installed so as to extend in the vertical direction on a mast extending in the vertical direction along the flying object. A damper having one end fixed to the mast, a rope having both ends fixed to the other end of the damper and the flying body, a restoring mechanism for restoring the damper to an initial position when the damper is displaced, Is provided.

  According to this configuration, since the flying object is held only by the rope, it is possible to easily perform separation at the time of launch. Furthermore, since the structure is simple compared to the conventional case, the cost can be reduced.

  According to the second aspect of the present invention, the restoring mechanism may be a spring having one end fixed to the mast and the other end fixed to the rope.

  According to this configuration, the displaced damper can be returned to the restoring position by the restoring force of the spring. Further, the structure can be simplified as compared with the case where another structure is adopted as the restoring mechanism.

  According to a third aspect of the present invention, the restoring mechanism may include a pulling mechanism that pulls the rope so that a tension of the rope becomes 0 or more when the damper is in the initial position.

  According to this configuration, even if the flying object swings due to an external force such as wind, the rope does not bend and the displacement of the flying object can be transmitted to the damper.

  According to a fourth aspect of the present invention, the tension mechanism may be the spring.

  According to this configuration, since the spring also serves as the pulling mechanism, the structure can be simplified.

  According to the fifth aspect of the present invention, the restoring mechanism has a plurality of unit springs having different diameters, and the plurality of unit springs are coaxially connected in a state of being overlapped in the length direction of the unit spring. It may be.

  According to this configuration, the movable stroke per unit spring can be reduced compared to the case where the restoring mechanism is formed by a single spring. In general, the spring becomes more expensive as the movable stroke becomes larger. However, according to the above configuration, since a plurality of unit springs having a small movable stroke are used, the cost can be reduced.

  According to the sixth aspect of the present invention, the damper and the restoring mechanism may be provided outside the mast.

  According to this structure, the weight which a mast bears can be reduced compared with the case where a damper and a restoring mechanism are arrange | positioned integrally with a mast. That is, since it is not necessary to increase the strength of the mast, the cost can be reduced.

  According to the seventh aspect of the present invention, the damper and the restoring mechanism may be provided inside the mast.

  According to this configuration, an external space for disposing the damper and the restoration mechanism can be saved.

  ADVANTAGE OF THE INVENTION According to this invention, it has a simple structure and can provide the flying body holding | maintenance apparatus which can hold | maintain a flying body stably.

1 is an overall view showing a relationship between a flying object holding device and a flying object according to a first embodiment of the present invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 1st embodiment of this invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 2nd embodiment of this invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 3rd embodiment of this invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 4th embodiment of this invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 5th embodiment of this invention. It is sectional drawing which shows the structure of the flying body holding | maintenance apparatus which concerns on 6th embodiment of this invention.

[First embodiment]
Hereinafter, the flying object holding device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 shows a state in which the flying object 100 is held by the flying object holding device 1. The flying object 100 has a generally cylindrical shape, and its tip has a pointed shape. The flying object 100 is installed on the ground adjacent to the plurality of masts 2 so as to extend in the vertical direction. Although not shown in detail, the flying object 100 has an engine that generates a propulsive force and a fuel tank that holds fuel to be input to the engine. When launching, the flying object 100 is propelled upward by radiating the thrust of the engine downward.

  The flying object holding device 1 is used to hold the flying object 100 placed on the ground at the time of launch in the above-described posture. As shown in FIG. 2, the flying object holding device 1 according to the present embodiment is attached to the support portion 3 of the mast 2 described above. The support part 3 protrudes toward the radial direction of the mast 2 having a columnar shape. The upper surface of the support part 3 extends along a horizontal plane. The flying object holding device 1 includes a damper 4, a rope 5, and a restoring mechanism 6.

  The damper 4 has a columnar cylinder 41 filled with hydraulic oil and a pair of rods 42 extending from both ends of the cylinder 41. When the damper 4 is pulled toward both sides, the damper 4 exerts a damping force corresponding to the speed so as to resist the pull. The rod 42 on one end side of the damper 4 is fixed to the mast 2. The rod 42 on the other end side of the damper 4 is connected to the linear guide 7 arranged on the support base. The linear guide 7 is freely movable along a rail 8 provided on the support base.

  One end of the rope 5 is connected to the damper 4 via the linear guide 7. The other end of the rope 5 is detachably connected to the surface of the flying object 100. Although not shown in detail, the rope 5 may be tied to a fixture or the like provided on the surface of the flying object 100, or may be connected by a ball socket joint or the like. As the rope 5, a metal wire or the like is preferably used. In the present embodiment, the length of the rope 5 is adjusted such that the tension of the rope 5 becomes zero.

  The restoring mechanism 6 is provided to return the rod 42 of the damper 4 to the initial position when the rod 42 is displaced (stretched). In the present embodiment, a spring 6 is used as the restoring mechanism 6. As the spring 6, a so-called tension spring is used that exhibits a restoring force when a force is applied in the direction in which the spring 6 extends. One end of the spring 6 is fixed to the mast 2, and the other end is fixed to the linear guide 7.

  Next, the operation of the flying object holding device 1 according to this embodiment will be described. When the flying object 100 is swung by the wind, a tensile force is applied to the flying object holding device 1 on the side opposite to the swinging direction among the plurality of flying object holding devices 1. The pulling force reaches the linear guide 7, the damper 4, and the spring 6 through the rope 5. The damper 4 exhibits a damping force according to the speed of displacement of the rope 5 (linear guide 7) due to the pulling force. This damping force restrains the flying object 100 from swinging. On the other hand, the spring 6 exhibits a restoring force corresponding to the displacement of the rope 5. That is, the spring 6 exhibits a restoring force corresponding to the extension of the damper 4. As a result, the extension of the damper 4 is restored, returns to the initial position, and the flying object 100 returns to the normal position.

  As described above, according to the above configuration, since the flying object 100 is held only by the rope 5, it is possible to easily perform separation at the time of launch. Furthermore, since the structure is simple compared to the conventional case, the cost can be reduced. In addition, according to the above configuration, the displaced damper 4 can be returned to the restoring position by the restoring force of the spring 6. Further, the structure can be simplified as compared with the case where a structure other than the spring 6 is employed as the restoring mechanism. In addition, since the flying object holding device 1 is provided on the support portion 3 of the mast 2, the ground space around the mast 2 can be saved.

  The first embodiment of the present invention has been described above. The above-described configuration is an example, and various changes and modifications can be made thereto. In the above-described embodiment, the example in which the damper 4 is disposed inside the spring 6 has been described. However, the damper 4 and the spring 6 may be disposed in parallel with each other. In addition, the structure which arrange | positions the damper 4 inside the spring 6 like the said embodiment is advantageous at the point which can save surrounding space.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In addition, about the structure similar to the said embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. As shown in FIG. 3, the flying object holding device 1 according to the present embodiment has a pulling mechanism 9 that pulls the rope 5 so that the initial tension (T) of the rope 5 becomes greater than 0 in advance. In the present embodiment, the spring 6 also serves as the pulling mechanism 9. The length of the rope 5 is set to be shorter than the distance from the surface of the flying object 100 to the linear guide 7 (or the damper 4 and the spring 6). As an example, the length of the rope 5 is set to be shorter than that of the first embodiment by a length that is half of the assumed swinging displacement of the flying object 100. Thereby, even if the flying object 100 is not oscillating, the spring 6 extends slightly and gives a pulling force to the rope 5.

  According to said structure, even if the flying body 100 rock | fluctuates by external forces, such as a wind, the rope 5 does not bend, but the displacement of the flying body 100 can be immediately transmitted to a damper. Furthermore, according to the above configuration, since the spring 6 also serves as the pulling mechanism 9, there is no need to provide another structure as the pulling mechanism 9, and the structure of the entire apparatus can be simplified.

  The second embodiment of the present invention has been described above. The above-described configuration is an example, and various changes and modifications can be made thereto.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to said each embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. As shown in FIG. 4, in the flying object holding device 1 according to the present embodiment, the tension mechanism 9 includes a tension rope 10 having one end connected to the linear guide 7 and a weight 11 connected to the other end of the tension rope 10. And have. Moreover, the inside of the mast 2 is a cavity, and an opening 12 through which the pulling rope 10 passes is formed on the side surface thereof. The weight 11 is supported by the pulling rope 10 via the sheave 13 so as to be movable in the vertical direction inside the mast 2. The sheave 13 is a pulley provided inside the mast 2. The pulling rope 10 (linear guide 7) is pulled sideways by the weight of the weight 11. Thereby, tension is generated in the rope 5.

  According to the above configuration, even when the flying object 100 swings due to an external force such as wind, the rope 5 does not bend and the displacement of the flying object 100 can be immediately transmitted to the damper 4. Moreover, compared with the case where the spring 6 serves also as the tension | pulling mechanism 9, the spring 6 can be reduced in size and cost can be reduced.

  The third embodiment of the present invention has been described above. The above-described configuration is an example, and various changes and modifications can be made thereto. For example, in the present embodiment, even when the damper 4 is extended, it can be restored to the initial position by the weight of the weight 11. Therefore, it is possible to adopt a configuration in which the spring 6 is not provided.

[Fourth embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIG. In addition, the code | symbol same about the structure similar to said each embodiment is attached | subjected, and detailed description is abbreviate | omitted. As shown in FIG. 5, in this embodiment, the spring 6 as the restoring mechanism 9 includes a plurality of unit springs 60 and a connecting member that connects these unit springs 60 to each other. In the present embodiment, the spring 6 includes four unit springs (first spring 61, second spring 62, third spring 63, and fourth spring 64). The unit springs 60 have different diameter dimensions.

  One end of the first spring 61 having the smallest diameter dimension is fixed to the mast 2. The other end of the first spring 61 is fixed to the first connection member 65. The first connection member 65 has a cylindrical shape having one bottom surface 65A and side surface 65B. The other end of the first spring 61 is fixed to the bottom surface 65A. The side surface 65B of the first connection member 65 extends from the bottom surface 65A toward the direction in which the first spring 61 is positioned. The length of the side surface 65B is set slightly smaller than the length of the first spring 61. On the other end side of the side surface 65B, a flange portion 65C is formed that spreads in a flange shape toward the outer peripheral side.

  The second spring 62 has a diameter larger than that of the first spring 61 and smaller than a third spring 63 described later. One end of the second spring 62 is fixed to the flange portion 65 </ b> C of the first connection member 65. The other end of the second spring 62 is fixed to the second connection member 66. The second connection member 66 has a cylindrical shape having one bottom surface 66A and a side surface 66B. The other end of the second spring 62 is fixed to the bottom surface 66A. The side surface 66B of the second connection member 66 extends from the bottom surface 66A toward the direction in which the second spring 62 is positioned. The length of the side surface 66 </ b> B is set to be equal to the length of the second spring 62. On the other end side of the side surface 66B, a flange portion 66C is formed that spreads in a flange shape toward the outer peripheral side.

  The third spring 63 has a larger diameter dimension than the second spring 62. One end of the third spring 63 is fixed to the flange portion 66 </ b> C of the second connection member 66. The other end of the third spring 63 is fixed to the third connection member 67. The third connection member 67 has a disk shape.

  One end of the fourth spring 64 is connected to the opposite side of the both sides of the third connection member 67 to the side to which the third spring 63 is connected. The other end of the fourth spring 64 is fixed to the linear guide 7. With the above configuration, the plurality of unit springs 60 are coaxially overlapped in the length direction. A hole 68 through which the damper 4 is inserted is formed at the center positions of the bottom surfaces 65A and 66A of the first connection member 65 and the second connection member 66 and the third connection member 67. The damper 4 connects the linear guide 7 and the mast 2.

  According to said structure, the movable stroke per unit spring 601 can be restrained small compared with the case where a restoring mechanism is formed with a single spring. Generally, the larger the movable stroke, the more expensive the spring. However, according to the above configuration, a plurality of unit springs 60 having a small movable stroke are used, so it is possible to reduce the cost while securing the movable stroke. become.

  The fourth embodiment of the present invention has been described above. The above-described configuration is an example, and various changes and modifications can be made thereto.

[Fifth embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to said each embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. As shown in FIG. 6, in this embodiment, two sheaves 14 and 15 are provided inside the mast 2. Further, the damper 4, the spring 6, and the linear guide 7 are installed on the ground outside the mast 2. The rope 5 extends to the outside of the mast 2 via two sheaves 14 and 15. Specifically, the rope 5 extends downward to the lower sheave 15 via the upper sheave 14, then changes the direction in the horizontal direction via the lower sheave 15, and is connected to the linear guide 7. Yes. Each end of the damper 4 and the spring 6 is connected to a fixed portion 20 provided on the ground.

  According to said structure, compared with the case where the damper 4 and the spring 6 are arrange | positioned integrally with the mast 2, the weight which the mast 2 bears can be reduced. That is, since it is not necessary to increase the strength of the mast 2, the cost can be reduced.

  The fifth embodiment of the present invention has been described above. The above-described configuration is an example, and various changes and modifications can be made thereto.

[Sixth embodiment]
Subsequently, a sixth embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to said each embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. As shown in FIG. 7, in this embodiment, the linear guide 7, the damper 4, and the pulling mechanism 9 are accommodated inside the mast 2.

  The linear guide 7 is movable along a rail 8 provided inside the mast 2. One end of the damper 4 is fixed to the linear guide 7. Further, a weight 11 as a restoring mechanism 6 and a pulling mechanism 9 is suspended from the linear guide 7. The weight 11 has an annular shape to avoid interference with the damper 4. A rope 5 extending from the flying object 100 is connected to the upper part of the linear guide 7. The rope 5 extends to the outside of the mast via a sheave 14 provided inside the mast 2.

  When the flying object 100 is swung by wind or the like, a tensile force is applied to the flying object holding device 1 on the opposite side to the swinging direction. The pulling force reaches the linear guide 7 and the damper 4 along the rope 5. The damper 4 exhibits a damping force according to the speed of displacement of the rope 5 (linear guide 7) due to the pulling force. This damping force restrains the flying object 100 from swinging. When the swinging is stopped, the extension of the damper 4 is restored by the weight of the weight 11 and returns to the initial position, and the flying object 100 returns to the normal position.

  According to said structure, the external space for arrange | positioning the flying object holding | maintenance apparatus 1 can be saved. Moreover, since it is possible to use only the weight 11 instead of the spring as the restoring mechanism 6, the cost can be significantly reduced.

  The embodiments of the present invention have been described above. The above-described configuration is an example, and various changes and modifications can be made thereto. In each of the above embodiments, the example in which the damper 4 is used as the device for attenuating the swing of the flying object 100 has been described. However, any device other than the damper 4 can be used as long as the device can absorb energy. is there. As another example, an example using a brake-like device that exhibits a damping force by a frictional force can be considered.

100 flying object 1 flying object holding device 2 mast 3 support part 4 damper 5 rope 6 spring (restoration mechanism)
7 Linear guide 8 Rail 9 Pull mechanism 10 Pull rope 11 Weight 12 Opening portion 13 Sheave 41 Cylinder 42 Rod 61 First spring 62 Second spring 63 Third spring 64 Fourth spring 65 First connection member 65A Bottom surface 65B Side surface 66 Second Connection member 66A Bottom surface 66B Side surface 67 Third connection member 68 Hole

Claims (7)

A flying object holding device for holding a flying object installed to extend in the vertical direction on a mast extending in the vertical direction along the flying object,
A damper having one end fixed to the mast;
A rope having both ends fixed to the other end of the damper and the flying body;
A restoring mechanism for restoring the damper to an initial position when the damper is displaced;
A flying object holding apparatus.   The flying body holding device according to claim 1, wherein the restoring mechanism is a spring having one end fixed to the mast and the other end fixed to the rope.   3. The flying object holding apparatus according to claim 1, wherein the restoring mechanism includes a pulling mechanism that pulls the rope so that a tension of the rope is larger than 0 when the damper is in the initial position.   The flying object holding device according to claim 3, wherein the pulling mechanism is the spring.   5. The restoration mechanism includes a plurality of unit springs having different diameters, and the plurality of unit springs are coaxially connected in a state of being overlapped in the length direction of the unit spring. The flying object holding device according to the item.   The flying object holding device according to any one of claims 1 to 5, wherein the damper and the restoring mechanism are provided outside the mast.   The flying object holding device according to any one of claims 1 to 5, wherein the damper and the restoring mechanism are provided inside the mast.