JPH09210595A - Restraining method of airframe and equipment therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cope with enlargement for improvement in performance of an airframe by storing restraining equipment compactly, without enlarging the sectional area of a canister. SOLUTION: In a method for restraining an airframe 2 held in a canister 1, a lever 50 of which the middle part is supported swingably and of which a hook part 50a in the front end faces a recession 2a formed in the outer peripheral surface of the rear end part of the airframe 2, so that it can engage with and disengage from the recession, is used and a prescribed elastic restraining force is given to a swing of the lever 50 taking a position of engagement whereat the hook part 50a engages with the recession 2a, by a restraining force giving mechanism 52 disposed behind the airframe 2. On the occasion when a prescribed thrust is generated in the airframe 2, the hook part 50a of the lever 50 can disengage from the recession 2a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of restraining a flying object and a device therefor, and more particularly to a method of restraining a flying object ejected from a canister and a device therefor.

[0002]

2. Description of the Related Art As a conventional projectile ejecting device, there is known one in which a projectile is housed in a canister. That is, a canister containing a flying object is mounted on a launcher, and the flying object is launched from within the canister. This type of canister is provided with a restraint device mainly for the purpose of reducing the length in the longitudinal direction. The restraint device restrains the projectile before launch to the canister, and releases the restraint when the projectile exerts an appropriate thrust, thereby giving a predetermined firing speed to the projectile by the relatively short canister, It is ensured to fire straight in the direction of pointing.

However, in such a conventional restraint device for a flying vehicle, the constituent elements of the restraint device are arranged in a space defined by the outer peripheral surface of the flying vehicle and the inner surface of the canister. Therefore, the space tends to be narrowed as the size of the flying object is increased to improve its performance. Therefore, it is desired to compactly accommodate the constituent elements of the restraint device without increasing the cross-sectional area of the canister.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional technical problems, and has the following configuration. The structure of claim 1 is a restraint method for restraining the flying body 2 housed in the canister 1, wherein the intermediate portion is swingably supported, and the hook portion 50a at the front end is the outer peripheral surface of the rear end portion of the flying body 2. The lever 50 is detachably engaged with the concave portion 2a formed in the rear portion and the rear end portion of the lever 50 projects rearward from the flying body 2.
When the hook 50a engages with the recess 2a, the restraining force imparting mechanism 52 disposed on the rear side of the projectile 2 with respect to the swinging motion of the lever 50 is used as a rear end of the lever (50). And a predetermined elastic restraining force is applied to the flying body 2
When a predetermined thrust is generated on the hook 50a of the lever 50
Is a detachable method from the recess 2a. According to a second aspect of the present invention, there is provided a restraint device 5 for restraining the flying body 2 housed in the canister 1, the middle portion of which is swingably supported, and the hook portion 50a at the front end is the outer periphery of the rear end portion of the flying body 2. A lever 5 that is releasably engaged with a concave portion 2a formed on the surface and has a rear end portion protruding rearward from the flying body 2.
0, which is arranged on the rear side of the flying body 2 and has a hook portion 50a.
Gives a predetermined elastic restraining force to the swing of the lever 50 which takes an engagement position where the hook engages with the recess 2a, and when a predetermined thrust is generated in the flying body 2, the engagement between the hook 50a and the recess 2a. Restraint force imparting mechanism 5 for allowing the swinging of the lever 50 for releasing the engagement
2 is a restraint device for a flying object, which is provided with 2 and a fixing device 51 which is arranged on the rear side of the flying object 2 and fixes or releases the engaging position of the lever 50. According to the configuration of claim 3, the inner end front surface 55a of the support member 55 that swingably supports the lever 50 forms a seating surface, and the rear end outer peripheral portion of the projectile 2 sits on the inner end front surface 55a. 3. The projectile restraining device according to claim 2, wherein the hook portion 50a of the lever 50 is aligned with the recess 2a of the projectile 2 in a supported state. In the configuration of claim 4, the restraint force applying mechanism 52 includes the tilt lever 58 and the elastic body 59, and the tilt lever 58 is provided.
However, the outer end of the lever 50 is swingably supported by the support member 55, and the rear end of the lever 50 can be engaged with the protrusion 58a protruding forward. The elastic body 59 is in a state in which it is compressed and interposed between the supporting member 55 and the tilting lever 58 to bias the tilting lever 58 forward and the rear end portion of the lever 50 is locked to the protrusion 58a. When the projectile 2 is restrained by the elastic force and a thrust force is generated in the projectile 2,
The lever 50 is provided via the hook portion 50a that engages with the recess 2a.
When a turning force is applied in one direction to the flying body 2 and a predetermined thrust is generated in the flying body 2, the elastic body 59 undergoes compressive deformation and the tilting lever 58 tilts, so that the concave portion 2a and the hook portion 50a are completely engaged. The flying object restraint device according to claim 3, wherein the flying object 2 is ejected after being released. The configuration of claim 5 is
The lever 50, the fixing device 51, and the restraining force applying mechanism 52 of the restraint device 5 are supported on the support disc 53, respectively.
3 is guided by a guide member 54 fixed to the inner surface of the canister 1 and slidable in the longitudinal direction of the canister 1, and a shock absorber that elastically supports the projectile 2 via a restraint device 5. 6. The flying object restraint device according to claim 2, 3 or 4, wherein 6 is arranged. According to the configuration of claim 6, the shock absorber 6 is a bracket 64 fixed to the inner surface of the canister 1, and the through hole 6 in the front-rear direction of the bracket 64.
4a, a shaft member 65 whose front end is fixed to the support member 55, elastic bodies 66a and 66b arranged on both front and rear sides of the bracket 64, and an elastic body 66a on the front side which is externally mounted on the front end of the shaft member 65. The first pressing member 68 is interposed between the rear surface of the support member 55 and the rear end of the shaft member 65 and is interposed between the rear elastic member 66b and the rear end of the shaft member 65. The flying object restraint device according to claim 5, further comprising a second pressing member 69 mounted.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of a restraint device for a flying object according to the present invention. In the figure, reference numeral 1 denotes a canister which is a housing. As shown in FIG. 4, the front surface of the canister 1 is covered with a front cover 3 in a state where the projectile 2 is housed in the space of the canister 1 which is partitioned in a cylindrical shape. The rear surface is covered by the rear cover 4. Then, the restraint device 5 is arranged near the rear end portion of the flying body 2, and the cushioning device 6 that elastically supports the flying body 2 via the restraint device 5 is arranged.

As shown in FIGS. 1 to 3, the restraint device 5 fixes the lever 50, a restraint force applying mechanism 52 for imparting a predetermined elastic restraining force to the lever 50, and the restraint force applying mechanism 52, and thus the restraint force applying mechanism 52. The fixing device 51 for fixing the engaging position of the lever 50 is provided, and these are supported on a support board 53. The support board 53 is guided by a pair of guide members 54 fixed to the inner surface of the canister 1 as shown in FIG. 2, and is slidable in the longitudinal direction (front-back direction) of the canister 1.

The lever 50 has a middle portion swingably supported by a pin 56 attached to a U-shaped support member 55 fixedly mounted on a support plate 53, and a hook extending from the front end portion by bending. The portion 50a releasably faces the recess 2a formed on the outer peripheral surface of the rear end portion of the projectile 2, and the rear end portion projects rearward from the projectile 2. The rear wall 2b of the recess 2a forms an inclined surface that is inclined rearward as shown in FIG.
An appropriate disengagement tendency is given to the hook portion 50a that engages with this. The inner end front surface 55a formed by notching the support member 55 forms a seating surface, and the rear end outer peripheral portion of the flying vehicle 2 is seated on and supported by the inner end front surface 55a.
The hook portion 50a of the lever 50 matches the recess 2a of the flying body 2.

The restraining force applying mechanism 52 has a tilting lever 58 and an elastic body 59. The tilt lever 58 is used for the support member 5.
The outer end of the lever 50 is tiltably supported by a pin 57 attached to the rear end of the lever 50, and the rear end of the lever 50 can be locked to the outer surface of a protrusion 58a protruding forward. The elastic body 59 is composed of a coil spring and is interposed between the rear surface of the tilt lever 58 and the rear front surface of the support member 55 by being compressed, and always biases the tilt lever 58 forward. Thus, the state in which the rear end of the lever 50 is locked to the protrusion 58a is elastically held by the elastic force of the elastic body 59.

The hook portion 50a of the lever 50 engages with the concave portion 2a of the flying body 2, and the rear end portion of the lever 50 has a protrusion portion 58a.
When the projectile 2 generates thrust and moves forward with the lever 50 in the engaged position, the hook portion 50a that engages with the rear wall 2b formed of the inclined surface of the recess 2a is used. A turning force in the counterclockwise direction in the drawing is applied to the lever 50. Then, when the thrust of the flying object 2 reaches a predetermined value, the lever 50 pivots largely, and the tilting lever 58 tilts clockwise while the elastic body 59 undergoes compressive deformation,
The rear end of the lever 50 separates from the protrusion 58a. As a result, the engagement between the hook portion 50a of the lever 50 and the recess 2a is completely released, and the projectile 2 is launched with an appropriate thrust.

The fixing device 51 for fixing the state in which the rear end of the lever 50 is engaged with the protrusion 58a of the tilting lever 58 is
As shown in FIGS. 2 and 3, it has a stopper member 60 and a drive device 61 for driving the stopper member 60 in the front-rear direction. The stopper member 60 has a Z shape, the inner end portion 60a is slidably arranged along the inner surface of the support member 55, and in the normal state, the inner end portion 60a is the protruding portion 5 at the inner end of the tilt lever 58.
8b and the inner surface of the support member 55 are interposed to prevent the tilt lever 58 from tilting. The drive device 61 is the support board 5
3, a torque motor 62 that is a drive source fixedly mounted on the ball screw 3, a ball screw 63a that is rotationally driven in the forward and reverse directions by the torque motor 62, and a nut member 63b that is screwed into the ball screw 63a via a ball (not shown). The outer end portion of the stopper member 60 is fixed to the nut member 63b. As shown in FIG. 2, the stopper member 60 is guided by the inner surface of the support member 55 and the side wall 55c in forward and backward movements, thereby preventing the stopper member 60 and the nut member 63b from rotating.

However, if the ball screw 63a is rotated in one direction by the torque motor 62 and the nut member 63b and the stopper member 60 are moved forward, the stopper member having the tilting prevention position shown in FIGS. Inner end 60 of 60
a escapes from between the protrusion 58b of the tilt lever 58 and the inner surface of the support member 55, and the tilt lever 58 can be tilted. In addition, the torque motor 62 allows the ball screw 63
a is rotated in the other direction to move the nut member 63b and the stopper member 60 backward, and the inner end portion 6 of the stopper member 60 is moved.
If 0a is inserted between the protruding portion 58b of the tilt lever 58 and the inner surface of the support member 55, the tilt lever 58 is prevented from tilting.

A shock absorber 6 for elastically supporting the flying vehicle 2 via the restraint device 5 is arranged between the canister 1 and the support member 55. That is, the shock absorber 6 includes the bracket 6 fixed to the inner surface of the canister 1 as shown in FIG.
4 and a shaft member 65 which is inserted into the through hole 64a in the front-rear direction of the bracket 64 and whose front end is screwed into the screw hole 55b on the rear surface of the support member 55, and the front and rear sides of the bracket 64 with the shaft member 65 inserted. Elastic bodies 66a, 66b formed of a plurality of coned disc springs, and a front end of the shaft member 65. The elastic body 66a is installed between the front elastic body 66a and the rear surface of the support member 55. Between the first pressing member 68 which gives the initial compression to 66a, and the nut 67 which is externally mounted on the rear end of the shaft member 65 and is screwed to the rear end of the shaft member 65. And a second pressing member 69 which is interposed between the second elastic member 66b and the elastic body 66b on the rear side to provide initial compression. In addition,
The initial compression amount of the elastic bodies 66a and 66b can be increased or decreased by adjusting the screwing amount of the shaft member 65 into the screw hole 55b or the screwing amount of the nut 67. Nuts 70 and 71 that are respectively screwed into the front and rear ends of the shaft member 65 are locks.

Next, the operation will be described. Initially, with the projectile 2 housed in the canister 1, the hook portion 50a of the lever 50 engages with the recess 2a of the projectile 2, the restraining force imparting mechanism 52 acts, and the fixing device 51 acts. doing. That is, the protrusion 58a of the tilt lever 58
The rear end portion of the lever 50 is locked to the inner end portion 60a of the stopper member 60 between the protruding portion 58b at the inner end of the tilting lever 58 and the inner surface of the support member 55. It is fixed at.

First, the operation of the shock absorber 6 will be described. The shock absorber 6 operates when the canister 1 is mounted on a moving body such as a ship and subjected to vibration. That is, when the flying object 2 moves in the front-back direction within the canister 1,
A pushing force or an attractive force from the flying object 2 is transmitted to the support member 55 and the support board 53 via the lever 50 or the inner end front surface 55a, and the support board 53 is guided by the guide member 54, while the longitudinal length of the canister 1 is increased. Exhibits a tendency to slide in the direction.
On the other hand, the back-and-forth movement of the support member 55 is transmitted to the shaft member 65, and the shaft member 65 moves back and forth while being guided by the through hole 64 a of the bracket 64.

Now, when the shaft member 65 moves forward, the second pressing member 69 moves forward and the rear elastic body 66b is compressed and buffered. On the other hand, when the shaft member 65 moves backward, the first pressing member 68 moves backward and the elastic body 66a on the front side is compressed and buffered. In this way, it is prevented that the projectile 2 and the restraint device 5 are damaged due to an excessive impact force. Since the fixing device 51 operates, the recess 2a and the hook portion 50a of the lever 50 are not disengaged from each other due to the vibration of the projectile 2.

Next, when the projectile 2 is ejected, after the fixing device 51 releases the fixation of the lever 50 on the basis of the firing signal, the rocket motor (not shown) is ignited, and the thrust force thereof causes the projectile to fly. 2 is fired. That is, the ball screw 63 is driven by the torque motor 62 based on the firing signal.
a is rotated in one direction to move the nut member 63b forward, and the inner end portion 60a of the stopper member 60 is moved to the tilt lever 5
The protruding portion 58b of No. 8 and the inner surface of the support member 55 are made to escape, and the tilting lever 58 can be tilted. Even if the tilting lever 58 can be tilted in this manner, the ejection force of the projectile 2 is suppressed by the predetermined elastic binding force because the binding force imparting mechanism 52 operates.

When the thrust of the projectile 2 reaches a predetermined value, the hook 50a of the lever 50 is fitted to the rear wall 2 of the recess 2a of the projectile 2.
The attractive force of a predetermined value starts to act from b, and the lever 50
The force of the rear end of the protrusion 58a of the tilting lever 58 to spring up reaches a predetermined value, and the elastic body 59 that is initially compressed and has a predetermined elastic force undergoes further compressive deformation. As a result, the tilting lever 58 elastically tilts clockwise in the clockwise direction, as shown by the phantom line in FIG. 1, so that the rear end of the lever 50 separates from the protrusion 58a and the recess 2a and the hook 50a are removed.
The engagement with and is completely disengaged, and the projectile 2 is launched. At that time, the front cover 3 and the rear cover 4 are damaged by the flying body 2.

When the projectile 2 is stored in the canister 1, the projectile 2 is inserted with the rear end of the lever 50 separated from the protrusion 58a, and the rear end of the projectile 2 is supported by the support member 55.
To the front surface 55a of the inner end of the. After that, a tool (not shown) is applied to the hole 58c at the inner end portion of the tilt lever 58 shown in FIG.
8 is tilted rearward, the rear end of the lever 50 is pulled outward, and the lever 50 is swung clockwise around the pin 56 to move the hook 50a into the recess 2a of the projectile 2. Engage with. Then, the tilting lever 58 is returned by the elastic force of the elastic body 59, the rear end of the lever 50 is locked to the protrusion 58a, and the flying body 2 is restrained. In the restrained state of the flying body 2, the rear end portion of the lever 50 is the tilt lever 58.
The fixing position is fixed by fixing the engaging position of engaging with the protruding portion 58a of the device with the fixing device 51.

[0019]

As will be understood from the above description,
According to the flying body restraining method and the apparatus therefor according to the present invention,
Engage the hook part of the lever with the recess formed on the outer peripheral surface of the rear end of the projectile, and use the restraint force applying mechanism arranged on the rear side of the projectile to provide a predetermined elastic restraint to the lever that takes the engaging position. Since the force is applied, the constraining device arranged in the space defined by the outer peripheral surface of the projectile and the inner surface of the canister is only on the hook portion side of the lever. As a result, it is possible to accommodate the restraint device compactly and deal with the increase in size of the canister for improving the performance without increasing the cross-sectional area of the canister. According to the second aspect, since the engagement position of the lever is fixed by the fixing device arranged on the rear side of the projectile, the state in which the hook portion of the lever is engaged with the recess of the projectile is fixed. Without increasing the cross-sectional area of the canister, the restraint device is prevented from inadvertently operating during non-injection, and safety and reliability are improved.

According to the fifth aspect of the present invention, since the shock absorber that elastically supports the projectile is disposed via the restraint device that restrains the projectile housed in the canister, only the projectile is provided by the function of the shock absorber. Without damaging the restraint devices, their reliability and durability are improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing a restraint device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the restraint device as well.

FIG. 3 is a view in which the shock absorber is also partially omitted and the fixing device is partially incised.

FIG. 4 is a sectional view showing a canister of the same.

[Explanation of symbols]

1: Canister, 2: Flying body, 2a: Recess, 5: Restraint device, 6: Shock absorber, 50: Lever, 50a: Hook part,
51: Fixing device, 52: Restraint force imparting mechanism, 53: Support board, 54: Guide member, 55: Support member, 55a: Inner end front surface, 55b: Screw hole, 56, 57: Pin, 58: Tilt lever, 58a: protrusion, 59: elastic body, 64: bracket, 64a: through hole, 65: shaft member, 66a, 66b:
Elastic body, 67: nut, 68: first pressing member, 69: second pressing member.

Claims (6)

[Claims] 1. A restraint method for restraining a projectile (2) housed in a canister (1), wherein an intermediate portion is swingably supported and a hook portion (50a) at a front end is a projectile (2).
The hook (50a) is recessed by using a lever (50) which is releasably engaged with the recess (2a) formed on the outer peripheral surface of the rear end and whose rear end projects further rearward than the projectile (2). With respect to the swing of the lever (50) which takes the engaging position to engage with (2a),
A restraining force imparting mechanism (5) arranged rearward of the flying body (2).
2) is applied to the rear end of the lever (50) to give a predetermined elastic restraining force, and when a predetermined thrust is generated in the projectile (2), the hook portion (50a) of the lever (50) is Recess (2
A method of restraining a flying object, characterized in that it is detachable from a). 2. A restraint device (5) for restraining a flying body (2) housed in a canister (1), wherein a middle portion is swingably supported and a hook portion (50a) at a front end is a flying body. (2) A lever (50) that releasably engages with a concave portion (2a) formed on the outer peripheral surface of the rear end portion, and the rear end portion projects rearward from the flying body (2), and the flying body (2). A predetermined elastic restraining force is applied to the swing of the lever (50) which is arranged on the rear side of the hook (50a) and is engaged with the recess (2a) so that the hook (50a) engages with the recess (2a). ), A restraining force imparting mechanism (5) that allows the swinging of the lever (50) that releases the engagement between the hook portion (50a) and the recessed portion (2a) when a predetermined thrust force is generated.
2) and a fixing device (5) arranged on the rear side of the flying body (2) for fixing or releasing the engagement position of the lever (50).
1) A restraint device for a flying object, comprising: 3. A front surface (55a) of an inner end portion of a support member (55) which swingably supports a lever (50) forms a seating surface, and an outer peripheral portion of a rear end of a flying body (2) is an inner end portion. Front (55
3. The flying object according to claim 2, wherein the hook portion (50a) of the lever (50) is aligned with the recessed portion (2a) of the flying object (2) while being seated in and supported by a). Restraint device. 4. The restraining force applying mechanism (52) has a tilting lever (58) and an elastic body (59), and the tilting lever (5).
8) has an outer end swingably supported by a support member (55), and a rear end of the lever (50) can be engaged with a protrusion (58a) projecting forward. (59)
Is interposed between the rear surface of the tilting lever (58) and the support member (55) by compression, biases the tilting lever (58) forward and tilts the lever (50) to the protrusion (58a). ) The state in which the rear end portion is locked is restrained by the elastic force of the elastic body (59), and when thrust is generated in the flying body (2), it engages with the concave portion (2a). When a unidirectional turning force is applied to the lever (50) through the hook portion (50a) and a predetermined thrust is generated in the flying body (2), the elastic body (59) is compressed and deformed to cause the tilting lever ( 58) tilts and the recess (2
4. The projectile restraining device according to claim 3, wherein the engagement between a) and the hook portion (50a) is completely released, and the projectile (2) is launched. 5. A lever (50), a fixing device (51) and a restraining force applying mechanism (52) of the restraint device (5) are respectively supported on a support disc (53), and the support disc (53) is a canister (53). It is slidable in the longitudinal direction of the canister (1) by being guided by a guide member (54) fixed to the inner surface of (1) and elastically moves the projectile (2) through a restraint device (5). 5. A flying vehicle restraint device according to claim 2, 3 or 4, characterized in that a shock absorber (6) for supporting it is arranged. 6. A shock absorber (6), a bracket (64) fixed to the inner surface of the canister (1), and a bracket (6).
4) a shaft member (65) which is inserted through the through hole (64a) in the front-rear direction and whose front end is fixed to the support member (55), and elastic bodies (66a, 6) arranged on both front and rear sides of the bracket (64).
6b), a first pressing member (68) which is mounted on the front end of the shaft member (65) and is interposed between the front elastic body (66a) and the rear surface of the support member (55), and the shaft member. (65) is provided on the rear end of the elastic body (66b) and the shaft member (6).
5) A second pressing member (69) interposed between the rear end and
6. The projectile restraint device according to claim 5, further comprising: