JP2020078973A - Injection device and flying body including injection device - Google Patents

Abstract

To provide an injection device capable of not only smoothly deploying a parachute or the like during deployment but also being easily manufactured and a flying body including the injection device.SOLUTION: An injection device 100 includes: a piston member 10; a cylinder 14 which stores the piston member 10 and is provided with a pore section 13 for making the piston member 10 to project outward during an operation; a push-up member 15 which is pushed up in one direction by the piston member 10; an injection object 16 which is pushed up while being supported by the push-up member 15; a gas generator 17 as a power source for moving the piston member 10 in the cylinder 14; and a storage device 18 which stores the piston member 10, the cylinder 14, the push-up member 15, the injection object 16, and the gas generator 17. The cylinder 14 has a projection 21. The storage device 18 has a first member 18a1 and a second member 18a2. The projection 21 is fitted into the bottoms of the first member 18a1 and the second member 18a2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ejection device that ejects an ejection object such as a parachute or a paraglider, and an aircraft including the ejection device.

  BACKGROUND ART In recent years, with the development of autonomous control technology and flight control technology, industrial use of an aircraft including a plurality of rotors called a drone is accelerating. A drone flies, for example, by simultaneously rotating a plurality of rotor blades in a well-balanced manner, ascending and descending by increasing/decreasing the rotation speed of the rotor blade, and moving forward and backward by tilting the airframe by increasing/decreasing the rotation speed of the rotor blade. It can be done by Such aircraft are expected to expand worldwide in the future.

  On the other hand, the risk of the above-mentioned accident of dropping the flying vehicle is regarded as dangerous, which hinders the spread of the flying vehicle. In order to reduce the risk of such a fall accident, an aircraft parachute device is being commercialized as a safety device.

  As a parachute deploying device of the above-mentioned air vehicle parachute, for example, in Patent Document 1, a pilot parachute packed in a chute cover so as not to be entangled in the line of the main parachute is blown by using a spring to A technique is disclosed in which a connected main parachute is pulled out from a parachute deploying device and deployed.

JP, 2007-331525, A

  In the parachute deploying device as in the above-mentioned Patent Document 1, from the viewpoint of safety, smooth deployment of the parachute and the like is required, and also easy manufacture (assembly) is required.

  However, in the above conventional technique, since the chute cover in which the pilot parachute is packaged is simply placed on the spring, the pilot parachute in the chute cover has no positional stability and is stably stored in the device. It is considered difficult to let them do it. Further, since the main parachute is pulled out by using the pilot parachute that is blown by the spring, the device configuration is complicated and the device is not easy to assemble.

  Therefore, it is an object of the present invention to provide an injection device that can deploy a parachute and the like smoothly at the time of deployment while having a simple configuration and that is easy to manufacture (assemble) and an aircraft including the injection device. ..

(1) In the injection device according to the present invention, a sliding member and the hole for accommodating the sliding member inside and having the sliding member projecting outward from the inside during operation are provided at one end. And a cylinder having a projecting portion formed so as to project outward from the middle of the opening or side surface of the other end, and a bottomed tubular portion arranged so as to cover at least a part of the cylinder. And a pushing-up member that is pushed up in one direction by the sliding member, having a collar-shaped portion formed so as to project outward from an opening portion of the bottomed tubular portion or an intermediate portion of a side surface, A first member that includes an ejection product that is pushed up while being supported by the flange-shaped portion of the pushing-up member, a bottom portion that is fitted and fixed to the projection portion, and a side surface portion that protects a side surface of the ejection member. And a second member, and a power source for moving the sliding member so as to project from the inside to the outside in the cylinder. ..

  According to the configuration of (1) above, not only can the parachute and the like be smoothly deployed at the time of deployment, but also the container can be formed at the end during manufacturing, which facilitates the manufacturing (assembly) and installation work of each part of the device. Become. As a result, an injection device that is easier to manufacture (assemble) than before can be provided.

(2) In the injection device according to (1), the protrusion is a first male member and the bottom is a first female member fitted with the first male member, or the protrusion is a second female member. It is preferable that the bottom portion is a second male member that fits with the second female member.

  According to the configuration of the above (2), not only is it easier to manufacture (assemble) than in the past, but also the cylinder and the container can be easily integrated via the protrusion of the cylinder and the bottom of the container. it can.

(3) In the injection device according to (1) or (2) above, the container is formed in a tubular shape having an opening on the side opposite to the bottom, and the container before the operation. A lid that closes the opening and is opened at the time of operation is provided in the opening of the container, and at least a part of a portion of the protrusion that fits with the bottom or the bottom of the protrusion. It is preferable that a seal member is provided on at least a part of the portion fitted to the protrusion.

  According to the above configuration (3), the container can be sealed, so that the ejected material and the injection device portion can be protected from moisture.

(4) In the injection device of (1) to (3), it is preferable that the container is made of resin.

  According to the configuration of (4) above, not only the first member and the second member of the container are easy to process, but also easy to attach, so that they can be more easily manufactured (assembled) than conventional ones.

(5) A flight vehicle according to the present invention includes a machine body, an injection device according to any one of (1) to (4), which is coupled to the machine body, and a propulsion mechanism, which is coupled to the machine body and propels the machine body. And are provided.

  According to the above configuration (5), it is possible to provide a flying body including an injection device that has a simple configuration and can easily deploy the parachute and the like at the time of deployment, and that is easy to manufacture (assemble).

(A) is a schematic cross section which shows the injection device which concerns on 1st Embodiment of this invention, (b) is a top view when the injection device of (a) is seen from the bottom part side of a container. It is a figure which shows one of the assembly processes of the container in the injection device of FIG. 1, Comprising: It is a top view at the time of seeing from the bottom side of a container. It is a figure which shows the flying body to which the injection device of FIG. 1 is applied. (A) is a schematic cross section which shows the injection device which concerns on 2nd Embodiment of this invention, (b) is a top view when the injection device of (a) is seen from the bottom part side of a container. It is a figure which shows one of the assembly processes of the container in the injection device of FIG. 4, Comprising: It is a top view at the time of seeing from the bottom side of a container. (A) is a schematic cross-sectional view showing a modified example of the injection device of FIG. 1, and (b) is a plan view of the packaging body in (a) (a view when viewed from below).

  Hereinafter, an injection device according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the injection device 100 according to the present embodiment accommodates the piston member 10 that is a sliding member and the piston member 10, and the piston member 10 is outward (in FIG. ), a cylinder 14 provided with a hole portion 13 for projecting to the ), a push-up member 15 that is pushed up in one direction (upward in FIG. 1) by the piston member 10, and an ejected product that is pushed up while being supported by the push-up member 15. 16, a gas generator (micro gas generator or the like) 17 as a power source for moving the piston member 10 in the cylinder 14, a piston member 10, a cylinder 14, a push-up member 15, an ejected substance 16, and a gas generator 17. The container 18 which accommodates is contained. Here, as a modification, an elastic body such as a spring may be used instead of the gas generator 17.

  The gas generator is inserted in the lower part of the piston member 10 in the cylinder 14, and a gas ejection port is provided at the tip of the gas generator. As a result, the gas generator generates gas that becomes a propulsive force for moving the piston member 10 outward (upward in FIG. 1) in the cylinder 14 by ignition by the electric signal. A seal member such as an O-ring may be provided between the inner wall of the cylinder 14 and the outer wall of the gas generator so as to prevent gas leakage during operation of the gas generator.

  The gas generator has an igniter containing an igniting agent (propellant) therein, and further includes a gas generating agent or a propellant such as a transfer agent, a filter, and the like, if necessary. It may be of the formula.

  The gas generating agent includes a reducing agent, an oxidizing agent, an additive, a slag forming agent and the like. As the reducing agent, for example, a triazole derivative, a tetrazole derivative, a guanidine derivative, an azodicarbonamide derivative, a hydrazine derivative, or the like, or a combination thereof is used. Specifically, for example, nitroguanidine, guanidine nitrate, cyanoguanidine, 5-aminotetrazole and the like are preferably used. Examples of the oxidizing agent include basic nitrates such as basic copper nitrate, ammonium perchlorate, perchlorates such as potassium perchlorate, and alkali metals, alkaline earth metals, transition metals, and ammonia. A nitrate containing a cation is used. As the nitrate, for example, sodium nitrate, potassium nitrate and the like are preferably used. Further, examples of the additive include a binder, a slag forming agent, a combustion modifier, and the like. As the binder, for example, a metal salt of carboxymethyl cellulose, an organic binder such as stearate, or an inorganic binder such as synthetic hydroxytalcite and acid clay can be preferably used. As the slag forming agent, silicon nitride, silica, acid clay and the like can be preferably used. Further, single base explosive, double base explosive and triple base explosive containing nitrocellulose as a main component may be used.

  The shape of the molded body of the gas generating agent includes various shapes such as a granular shape such as a granular shape, a pellet shape and a cylindrical shape, and a disk shape. Further, as the columnar one, a perforated molded body having a through hole inside the molded body (for example, a single-hole cylindrical shape or a perforated cylindrical shape) is also used. Further, in addition to the shape of the gas generating agent, it is preferable to appropriately select the size and filling amount of the molded body in consideration of the linear burning rate of the gas generating agent, the pressure index and the like.

  Here, as another modified example of the gas generator, a hybrid-type or stored-type gas generator in which a sealing plate in a small-sized gas cylinder is cleaved by an explosive-type igniter and the internal gas is discharged to the outside is used. Good. In this case, as the pressurized gas in the gas cylinder, an incombustible gas such as argon, helium, nitrogen, carbon dioxide, or a mixture thereof can be used. Further, in order to surely propel the piston when the pressurized gas is discharged, the gas generator may be provided with an explosive heating element.

  In FIG. 1, the push-up member 15 is convex upward, but may be flat instead of convex.

  In the present embodiment, as shown in the schematic view of FIG. 1, the projectile 16 has a parachute or a paraglider 16a and a predetermined shape (for example, one that is folded back by folding at least double or more on a plane, The packaging body 16b includes a parachute or a paraglider 16a folded into a tubular shape according to the internal shape of the packaging body 16b. For example, the parachute or paraglider 16a may be included in a state of being symmetrically folded with respect to the center. In the case of a parachute having a dome-shaped base cloth, it may be folded in a bellows shape with respect to the center. Furthermore, in the case of a paraglider having an elongated single surface base cloth, the paraglider may be folded back in multiple layers from both ends with respect to the center.

  As shown in FIG. 1A, the packaging body 16b is an annular tubular body having a through hole in the central portion thereof through which the bottomed tubular portion 19 of the push-up member 15 penetrates. Further, the lower portion of the package 16b in FIG. 1 is in a state of being supported by the supporting portion 20 (in a state of being in contact).

  In addition, the package 16b has an opening mechanism that opens the parachute or paraglider 16a to the outside of the package 16b. The parachute or paraglider 16a is connected to the container 18 or the air vehicle. The opening mechanism is not particularly limited in its mechanism. For example, when the parachute or the paraglider 16a is connected to the container 18 or the flying body by a line, when the projectile 16 is injected, the line tension is applied to the line. As a result, the package 16b is automatically released by applying the force, and the parachute or the paraglider 16a is released by the line tension which is further strengthened by the opening of the package 16b. Further, a mechanism may be used in which the paraglider or the paraglider 16a is released when the projecting object 16 connected to the container 18 is ejected, by opening, wrapping, or breaking the package 16b from the connecting part. In addition, a canopy deploying device for forcibly opening the canopy after the ejection from the paraglider device may be provided. The canopy deploying device has a drive source for generating a force for deploying the canopy, and as the drive source, a device utilizing the force of a spring such as a winding spring or a gas generator is used. For example, the one using the pressure of the generated gas may be used.

  The gas generator 17 has a pair of electrode pins 17a that can be connected to a socket (not shown) that communicates with a power source, and is pressed into the lower open end of the cylinder 14 to be described later with respect to the piston member 10. It is arranged below the main body 11. Further, at the lower part of the cylinder 14, there is provided a projecting portion 21 formed in a brim shape so as to project outward from the open end. Here, as a modification, the projecting portion 21 may be formed so as to project outward from an intermediate portion of the side surface of the cylinder 14.

  The container 18 includes a first member 18a and a second member 18b that form a hole 28 at the center of the bottom, and is entirely tubular. The first member 18a has a semi-cylindrical shape, and has a bottom portion 18a1 (female member) having a recessed portion 26 that fits into the protrusion 21 (male member), and a side surface portion 18a2 that protects the side surface of the projectile 16. have. Similarly to the first member 18a, the second member 18b has a semi-cylindrical shape, and has a bottom portion 18b1 (female member) having a recessed portion 27 that fits into the protruding portion 21 (male member), and the injection member 16. It has a side surface portion 18b2 for protecting the side surface. Each of the recesses 26 and 27 is a semi-annular groove that is recessed from the inner peripheral side of the hole 28 toward the outer peripheral side, and is accommodated by the first member 18a and the second member 18b as shown in FIG. When the container 18 is formed, it is possible to form an annular groove portion, and by fitting the groove portion from the outer peripheral edge portion of the protruding portion 21 toward the center to the middle portion, the cylinder 14 and the container can be formed. 18 and 18 can be integrated via the protruding portion 21. In addition, although the container 18 is divided into two in FIG. 2, the two divisions may not be a true half, may be two or more divisions (for example, three divisions), or may be divided equally. It does not have to be the one that was created.

  Note that, as shown in FIG. 2, after the injection material 16 is set on the pushing-up member 15 to form the precursor, the first member 18a and the second member 18b are moved in the direction of the white arrow to form the recess 26. It is possible to assemble the injection device shown in FIG. 1 by sandwiching the projecting portion 21 while fitting the projecting portion 21 into the projecting portions 27 and 27. Here, the recesses 26 and 27 and the protrusion 21 may be bonded and fixed with an adhesive or the like. Further, the seam between the bottom portion 18a1 and the bottom portion 18b1 may be fixed by adhesion with an adhesive or the like.

  The piston member 10 has a main body 11 including a portion having an outer diameter substantially the same as the inner diameter of the cylinder 14, and a rod-shaped portion 12 connected to the main body 11 and extending upward and having a diameter smaller than that of the main body 11. ing. The upper end of the rod-shaped portion 12 is fixed to the inner surface of the upper end of a bottomed tubular portion 19 of the push-up member 15, which will be described later, through the hole 13 of the cylinder 14. Further, a stopper 23 arranged so as to surround a part of the rod-shaped portion 12 of the piston member 10 is provided in the upper portion of the cylinder 14. That is, the rod-shaped portion 12 is arranged so as to be inserted into the stopper 23. As a result, when the piston member 10 moves upward, the main body portion 11 comes into contact with the stopper 23 and stops, so that the main body portion 11 is not discharged outward from the inside of the cylinder 14.

  Further, as shown in FIG. 1, the push-up member 15 is arranged so as to cover a part of the cylinder 14, that is, an outer part of the cylinder 14 excluding an opening end where the gas generator 17 is arranged. It has a bottom tubular portion 19 and a disc-shaped support portion 20 that is provided as a flange (flange-shaped portion) at the opening edge portion of the bottomed tubular portion 19 and that supports the injection product 16. In such a configuration, the bottom portion of the support portion 20 is provided so as to contact the inner surface side of the bottom portion of the container 18 in the initial state. Further, the outer peripheral portion of the support portion 20 is formed so as not to contact the inside of the container 18.

  Here, as shown in FIG. 1B, the bottom of the cylinder 14 is provided with a plurality of vent holes 24 that communicate the space 25 surrounded by the cylinder 14, the push-up member 15, and the container 18 with the outside. Has been. When the push-up member 15 rapidly moves in the container 18, a negative pressure is generated in each vent hole 24 in a region between the push-up member 15 and the space 25. Therefore, it becomes difficult to move the push-up member 15. Therefore, by providing the vent hole 24, the negative pressure phenomenon can be reduced, and the pushing-up member 15 can be smoothly moved.

  Further, the projectile 16 covers the outer surface of the bottomed tubular portion 19, for example, between the inner surface of the housing 18 and the outer surface of the bottomed tubular portion 19 of the push-up member 15 inside the container 18. It is housed. The projectile 16 is housed so that its outside does not contact the inside of the container 18. The projectile 16 is connected to, for example, one end of a string (not shown), and the other end of the string is connected to the inside of the container 18 or a machine body 31 of a flying body 30 described later.

  In the configuration described above, when the gas generator 17 is activated when, for example, a flying body or the like on which the injection device 100 is mounted falls, the piston member 10 moves upward in the cylinder 14 due to the pressure of the gas generated by the operation. Promote. As a result, the push-up member 15 having the bottomed tubular portion 19 connected to the rod portion 12 of the piston member 10 is propelled upward in the container 18. As a result, the ejected material 16 is ejected from the inside of the container 18 outward (upward in the plane of FIG. 1). When the projectile 16 is ejected, the parachute or paraglider 16a is opened (released) from the inside of the package 16b to the outside by the opening mechanism, and the parachute or paraglider 16a is deployed.

  As shown in FIGS. 1 and 3, the injection device 100 is connected and fixed to the machine body 31 of the flying body 30 via a connecting member 40. At this time, as shown in FIG. 1, the connecting member 40 connects the container 18 and the machine body 31 at a position where the vent hole 24 is not closed. Therefore, the air vehicle 30 includes an airframe 31, an injection device 100 coupled to the airframe 31, one or more propulsion mechanisms (for example, propellers) 32 coupled to the airframe 31 for propelling the airframe 31, and the airframe. And a plurality of leg portions 33 provided at the bottom of 31. Here, actually, a socket for energization is fitted to an electrode (not shown) in the lower portion of the gas generator 17, but it is omitted in FIG. 3 for convenience of description.

  As described above, according to the present embodiment, not only the parachute or the paraglider 16a can be smoothly deployed at the time of deployment, but also the container 18 can be formed at the end at the time of manufacturing, even though the configuration is simple. It will be easier to manufacture and install. As a result, it is possible to provide the injection device 100 that is easier to manufacture (assemble) than the conventional one.

  Further, according to the present embodiment, the injection object 16 can be easily positioned with respect to the push-up member 15, so that the injection apparatus 100 can be easily manufactured (assembled). Further, the recessed portion 16b1 of the ejected article 16 can be pushed up by the bottomed tubular portion 19 of the pushed-up member 15 (if the bottom portion of the ejected article 16 is designed to be installed on the support portion 20, the support portion of the push-up member 15 is supported). Since the bottom portion of the ejected material 16 can also be pushed up by 20), the ejected material 16 can be easily ejected in the axial direction of the bottomed tubular portion 19 of the pushing-up member 15. That is, the injection device 100 can be manufactured (assembled) in a state in which the injection direction of the injection product 16 when the device is operating is determined in advance.

  In addition, according to the present embodiment, the space for accommodating the projectile 16 can be reduced compared to the structure in which the entire projectile is arranged above or in front of the piston member. As a result, the device can be made more compact than before, and the weight can be reduced. Further, as the piston member 10 moves in the cylinder 14, the support portion 20 of the pushing-up member 15 moves and a sufficient stroke for pushing up the ejected material 16 is secured. As a result, the projectile 16 is sufficiently accelerated and the injection speed of the projectile 16 is not reduced. Therefore, according to the injection device 100 of the present embodiment, it is possible to reduce the weight without lowering the injection speed of the injection object 16.

  Further, in the present embodiment, most of the ejected material 16 is housed in the container 18 between the inner surface of the container 18 and the outer surface of the bottomed tubular portion 19. As a result, the space for accommodating the injection object 16 can be saved, and it is possible to prevent the injection device 100 from becoming large. Therefore, the weight of the injection device 100 can be reduced.

  Further, in the present embodiment, the gas generator 17 is press-fitted into the cylinder 14, so that the gas generator 17 can be firmly fixed.

(Second embodiment)
Next, the injection device according to the second embodiment will be described. In the present embodiment, parts having the same last two digits as those in the above-described first embodiment are the same as those described in the first embodiment, unless otherwise specified, and thus description thereof will be omitted. Further, the parts that are not particularly described are the same as those in the first embodiment, and thus the description and illustration may be omitted. In addition, in the second embodiment, as a general rule, points different from the first embodiment will be mainly described.

  As shown in FIGS. 4A and 4B, in the injection device 200 of the present embodiment, the container 18 (first member 18a, second member 18b) of the first embodiment, which is a female member, is used. Instead, the container 118 (first member 118a, second member 118b) of a male member is used, and the protruding portion 121 that is a female member is used instead of the protruding portion 21 that is a male member. In the first embodiment, the support portion 120 of the push-up member 115 is in contact with the upper surface of the protruding portion 121, and the ventilation hole 124 is in direct contact with the lower surface of the support portion 120. Is different from

  The first member 118a is provided with a plate-shaped bottom portion 118a1 that is a male member with respect to the protruding portion 121 and is formed in a fan shape. Further, the second member 118b is provided with a plate-shaped bottom portion 118b1 which is a male member with respect to the protruding portion 121 and is formed in a fan shape.

  The protrusion 121 is provided with an annular recess 126 that is recessed from the outer peripheral edge toward the center. As shown in FIG. 4 (completed view) and FIG. 5 (view before fitting the first member 118a and the second member 118b to the precursor) by the first member 118a and the second member 118b. When the container 118 is formed, the recess 126 is adapted to fit from the inner peripheral edge portion of the bottom portion 118a1 of the first member 118a and the bottom portion 118b1 of the second member 118b to the middle portion toward the outer peripheral portion. ing. Here, the recess 126 and the bottom portion 118a1 and the bottom portion 118b1 may be bonded and fixed with an adhesive or the like. Further, the joint between the bottom portion 118a1 and the bottom portion 118b1 may be fixed by adhesion with an adhesive or the like.

  According to this embodiment, the same effect as that of the first embodiment can be obtained.

  Although the embodiments of the present invention have been described above with reference to the drawings, it should be considered that the specific configurations are not limited to these embodiments. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  In each of the above embodiments, the gas generator is adopted as the power source, but the configuration is limited as long as the sliding member can give a driving force for propelling in the cylinder to the sliding member. Alternatively, an elastic body such as a spring may be adopted.

  Further, in the first embodiment, the support portion 20 of the push-up member 15 is provided so as to abut the bottom portion of the container 18. However, it is not limited to this. For example, the support portion 20 may be arranged near the middle of the rod portion 12 of the piston member 10 in the length direction.

  Further, in each of the above embodiments, the upper end of the rod-shaped portion is fixed to the inner surface of the upper end of the bottomed tubular portion of the push-up member, but the present invention is not limited to this, and the upper end of the rod-shaped portion does not have to be fixed to the inner surface. Good.

  Further, in each of the above-described embodiments, a lid may be provided at the downstream end of the container in the ejection direction of the ejected product, that is, the upper end of the container. A part of the end portion of the lid may be rotatably supported by the lid opening/closing mechanism. The lid opening/closing mechanism may automatically open the lid by a driving device such as a motor in accordance with the operation of the gas generator. When such a lid is provided, the lid is pushed up by the upper part of the push-up member and opened, and the ejected product is ejected, but the ejected product can be protected from the external environment before the operation of the device. .. Further, a seal member (rubber packing or the like) may be provided in at least a part between the protruding portion 21 and the concave portion. As a result, the ejected material can be shielded from moisture of the external environment together with the lid. In addition, when the humidity is not taken into consideration, the container does not necessarily have to be hermetically sealed, and may not be formed in a tubular shape, and a gap may be formed between the first member and the second member. There may be.

  Further, the lid may be provided in the container so as to be openable/closable by a lid opening/closing mechanism such as a hinge, a snap-in system, or a servomotor, or the lid may be press-fitted into the container. In this case, in order to prevent the lid from falling, it is desirable to connect the lid to the container with a string or the like.

  Further, in each of the above-described embodiments, the container is formed in a cylindrical shape, but it is not limited to this and may be formed in another shape such as a square tube.

  Further, the piston member in each of the above embodiments may be configured as a telescopic structure.

  Further, in each of the above-described embodiments, the parachute or the paraglider is used as the projectile, but the projectile is not limited to this, and one including a lift generating member may be injected as the projectile. Examples of the lift generating member include a parafoil, a logaro type parachute, a single surface type parachute, an airplane wing, a propeller, and a balloon. Further, when the lift generating member has a control line, it is desirable that the injection device be provided with a steering mechanism that can change the tilt angle of the ejected lift generating member using the control line. This steering mechanism is provided with, for example, a plurality of reels respectively winding a plurality of control lines connected to a lift generating member, and a motor that serves as a power for these reels. By lifting or unwinding the line, the lift generating member can be appropriately pulled or loosened.

  Further, although the vent hole is provided in the bottom portion of the container in each of the above embodiments, the vent hole is not limited to this position. It may be at any position as long as it can suppress the negative pressure generated between the container and the pushing-up member during operation.

  Further, in each of the above-described embodiments, the cylinder, the power source, and the container may be fixed to the machine body by means such as a rubber band, a belt, a string, or other means (mechanical joining, bolts, fasteners, adhesives), or the like. preferable.

  Further, in each of the above-described embodiments, the shape of the support portion that supports the ejected material may be any of a disc shape (including a circle and an ellipse), a polygonal shape, and a radial shape. When the shape of the support portion is elliptical or polygonal, the inner surface of the container is preferably formed along the outer peripheral portion of the support portion.

  Further, in the first embodiment, the protrusion 21 is formed in a brim shape, but if the protrusion 21 is formed in a shape that fits into the recesses 26 and 27 of the bottom portions 18a1 and 18b1 of the container 18, what is the protrusion 21? It may have any shape. For example, a bottom portion of a first member and a bottom portion (female portion) of a second member, each of which has a pair of rod-shaped members (male members) whose protrusions are provided symmetrically, and which respectively have recesses which are holes into which the rod-shaped members fit. Member).

  In addition, in the second embodiment, each of the bottom portions 118a1 and 118b1 of the container 118 is formed in a plate shape. However, if the bottom portions 118a1 and 118b1 are formed in a shape that fits into the recesses 126 of the protruding portion 121, which of the bottom portions 118a1 and 118b1 is formed? It may have such a shape. For example, a projection member (male member) provided on a part of the inner peripheral portion of each of the bottom portion of the first member and the bottom portion of the second member, the projection having a concave portion that is a hole portion into which the projection member is fitted. It may be a part (female member).

  Further, instead of the package body in the first embodiment, the package body 216b shown in FIG. 6 may be used. Specifically, as shown in FIG. 6(b), it may be a bottomed, substantially tubular shape having a recess 316b1 formed in the center. Here, the recess 316b1 is a portion that can be fitted into the cylinder 214, as shown in FIG. Further, the lower portion of the package 216b in FIG. 6A is not in a state of being supported by the supporting portion 220 (in a state of not being in contact with it), but in a supported state (a state of being in contact with it), The size of the package 216b may be changed. In the injection device 300 according to the present modification, the parts having the same last two digits as those in the first embodiment described above are the same as those described in the first embodiment, and therefore description thereof is omitted. Further, the parts that are not particularly described are the same as those in the first embodiment, and therefore the description and illustration are omitted. Further, the package 216b of this modification can be substituted for the package 116b of the second embodiment.

10, 110, 210 Piston members 11, 111, 211 Body parts 12, 112, 212 Rod-shaped parts 13, 113, 213 Hole parts 14, 114, 214 Cylinders 15, 115, 215 Push-up members 16, 116, 216 Injection products 16a, 116a, 216a Paraglider or paraglider 16b, 116b, 216b Package 17, 117, 217 Gas generator 18, 118, 218 Container 18a1, 18b1, 118a1, 118b1, 218a1, 218b1 Bottom 18a2, 18b2, 118a2, 118b2, 218a2, 218b2 Side surface portion 19, 119, 219 Bottomed tubular portion 20, 120, 220 Support portion 21, 121, 221 Projection portion 23, 123, 223 Stopper 24, 124, 224 Vent hole 25, 225 Space 26, 27, 126, 216b1, 226 Recessed portion 30 Aircraft 31 Airframe 32 Propulsion mechanism 33 Leg 40 Connection member 100, 200, 300 Injection device

Claims (5)

A sliding member,
A hole for accommodating the sliding member inside and allowing the sliding member to project outward from the inside during operation is provided at one end, and the opening at the other end or the middle of the side surface faces the outside. A cylinder having a protrusion formed so as to protrude,
A bottomed tubular portion arranged to cover at least a part of the cylinder, and a brim shaped portion formed so as to project outward from an opening portion of the bottomed tubular portion or an intermediate portion of a side surface thereof. And a push-up member that is pushed up in one direction by the sliding member,
An ejected object that is pushed up while being supported by the collar-shaped portion of the push-up member,
A container that includes at least a first member and a second member that respectively include a bottom portion that is fitted and fixed to the protrusion portion and a side surface portion that protects a side surface of the projectile,
And a power source for moving the sliding member so as to project from the inside to the outside in the cylinder.   The protrusion is a first male member and the bottom is a first female member that fits with the first male member, or the protrusion is a second female member and the bottom is fitted with the second female member. The injection device according to claim 1, wherein the injection device is a second male member. The container is formed in a tubular shape having an opening on the side opposite to the bottom,
Before operation, the opening of the container is sealed, and a lid that is opened during operation is provided in the opening of the container,
A seal member is provided on at least a part of a portion of the protrusion that fits with the bottom portion, or at least a part of a portion of the bottom portion that fits on the protrusion. The injection device according to 1 or 2.   The injection device according to any one of claims 1 to 3, wherein the container is made of resin. The aircraft,
The injection device according to any one of claims 1 to 4, which is coupled to the machine body,
A propulsion mechanism coupled to the airframe for propelling the airframe.

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