JP3028551U - Automatic umbrella opening device for toy rockets - Google Patents

Abstract

(57) [Summary] [Purpose] To open the parachute that acts when the toy rocket falls without requiring special power or operation. [Structure] A support body 13 on which a parachute 11 is mounted is attached to a tip portion of a main body 10, and a spring means 15 for releasing the parachute 11 to the outside of the main body urges the support body 13 outward. Also, the parachute 11 mainly due to its own weight
The holding part 1 so that it is opened by the wind pressure when it is dropped.
A nose cone 16 covering the second main body 10 is detachably provided at the tip of the main body 10, and the nose cone 16 is separated from the first hinge means 14 by approximately 180 degrees.
Attach to the tip of the main body via 7.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a device for automatically opening a parachute attached to a toy rocket.

[0002]

[Prior art]

 Rocket play using PET bottles (beverage containers made of polyethylene terephthalate) as a material is popular, but such toy rockets drop as they are when the power is exhausted. However, since the rocket has almost no lift, it will be dangerous if the falling speed becomes too high, and the aircraft will also be damaged. Some conventional toy rockets and other flying vehicles have been designed to open parachutes in the air, but they explode explosives or activate a discharge device with a timer to open the parachute. Therefore, power for opening the umbrella and a complicated device are required separately, and it will not work unless it is set.

[0003]

[Problems to be solved by the device]

 The present invention has been made by paying attention to the above-mentioned actual situation, and its problem is to make the parachute open by using gravity as the main power and without requiring special operation. .

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a housing 12 for a parachute 11 at the tip of a rocket body 10, and a support 13 for mounting the parachute 11 in the housing 12 via a first hinge means 14. In addition to being attached to the main body 10, the support means 13 is urged outward by the spring means 15 in order to facilitate the opening of the parachute 11, and the parachute 11 is mainly held by its own weight so as to be opened by the wind pressure when falling. A nose cone 16 that covers the portion 12 is detachably provided at the tip of the main body 10, and the nose cone 16 is separated from the first hinge means 14 by approximately 180 degrees and the second hinge means 17 is provided between the nose cone 16 and the main body. It is attached to the tip.

[0005]

[Embodiment of device]

 The device of the present invention is to attach a parachute 11 to a toy rocket, and to open the parachute automatically and without power when it falls.

The toy rocket has a body, that is, an elongated main body 10, and a tip portion thereof serves as a housing portion 12 for housing the parachute 11. In the case of the illustrated hydraulic rocket using a plastic bottle, the inside of the opening in the upper part of the pressure tank 19 is brought into contact with the housing 12. The PET bottle is an example, and the present invention is not limited to this. For example, when a pressure container having substantially the same structure as that of a PET bottle is manufactured using polycarbonate as a raw material, it exhibits greater pressure resistance than that of polyethylene terephthalate. Therefore, the pressure tank 19 and the like can be formed using any synthetic resin.

The parachute 11 provides resistance to a toy rocket that freely falls after power flight and reduces the falling speed. Therefore, there is a need for an umbrella cloth that has a shape and area that can reduce the damage to the collision itself without damaging it in the event of a collision. The material for the umbrella cloth may be a film or sheet, and a cloth or other woven structure, but the latter is easier to open.

A support 13 on which the parachute 11 is placed is arranged in the accommodating portion 12, and is attached to the airframe via first hinge means 14. The support 13 is large enough to hold the folded parachute 11 and is hingedly attached to the body 10 to favor the release of the parachute 11. When the machine body is made of plastic bottles, the support body 13 can be made of the same material. Further, in the illustrated example, since the parachute 11 is attached to the support 13, it moves outward together with the attachment portion 21.

Furthermore, in order to make it easier to open the parachute 11, spring means 15 for urging the support 13 outward is provided. Since the parachute 11 can be released outward from the support body 13 biased outward by the spring means 15, the opening of the umbrella is greatly facilitated. As the spring means 15, a torsion spring wound with steel wires, a leaf spring used by bending a plate-like piece of metal or resin, or the like can be used, one end of which is on the main body side and the other end is on the support side. Support.

A nose cone 16 that covers the parachute 11 and the accommodating portion 12 is detachably provided at the tip of the main body 10. The nose cone 16 is a shaping cover on the tip of the main body, and at the same time is a means for holding the parachute 11. The fixed force that presses the parachute 11 is mainly its own weight, and the frictional force generated by the fitting with the main body 10 and the wind pressure during flight are added thereto. Of these, the frictional force is not so large that it is only opened by the wind pressure applied to the nose cone 16 when it falls and the weight of the nose cone 16.

The nose cone 16 is attached to the tip of the main body via the second hinge means 17. Similar to the first hinge means 14, the second hinge means 17 is attached to the opening at the tip of the main body which is the housing portion 12. At that time, the first hinge means 14 and the second hinge means 17 are arranged so that their positions are separated by half of the entire circumference of 360 degrees, that is, about 180 degrees, so that the wind pressure acting on the nose cone 16 can be effectively used for the closing force. To

Even if the first and second hinge means 14 and 17 have a mechanical structure in which two hinge pieces are joined by an axis, the center of the resin piece is thinned to have a hinge structure (effect). It may be a simple piece or a flexible piece. In the figure, reference numeral 18 denotes a discharge lever, which is provided on the support body 13 so that a tip portion thereof can come into contact with the nose cone 16 so that the biasing force of the spring means 15 acts on the nose cone 16.

When a required amount of water is injected into the pressure tank 19 and air is injected and compressed to open the nozzle 20 with the airframe ready to fire, the toy rocket is repulsed by the compressed air injecting water from the nozzle 20. It rises (Fig. 3). During this time, the nose cone 16 remains closed due to its own weight, wind pressure and frictional force. After the power flight ends, when the wind pressure disappears and the upward posture collapses, the pressing force due to the weight of the nose cone 16 weakens or disappears, and the biasing force of the spring means 15 acts, so that the nose cone 16 opens (Fig. 3) The parachute 11 is released and it automatically opens (Fig. 3). Therefore, the airframe receives resistance from the parachute 11 and significantly reduces the falling speed.

[0014]

[Effect of device]

 Since the present invention is configured and operates as described above, the parachute 11 is held by the weight of the nose cone 16 and the wind pressure during the ascent of the airframe. The parachute opens unpowered and the parachute opens to achieve the purpose. If the parachute 11 is housed and the nose cone 16 is closed, the parachute can be reused without any special operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an automatic umbrella opening device in a toy rocket according to the present invention.

FIG. 2 is a partial cross-sectional view of an aircraft equipped with the same device.

FIG. 3 is an explanatory view showing a process from launching to opening an umbrella.

Claims (4)

[Scope of utility model registration request] 1. A device for automatically opening a parachute attached to a toy rocket, the main body 1 of the rocket.
In order to make it easy to open the parachute 11 while providing the accommodating portion 12 of the parachute 11 at the tip of 0 and attaching the support 13 for mounting the parachute 11 in the accommodating portion 12 to the main body 10 via the first hinge means 14. Spring means 1
5, the support 13 is urged outward, the parachute 11 is mainly held by its own weight, and the nose cone 16 that covers the accommodating portion 12 is opened and detached at the tip of the main body 10 so as to be opened by wind pressure when falling, An automatic umbrella opening device for a toy rocket, characterized in that the nose cone 16 is attached to the tip of the main body through the second hinge means 17 at a position approximately 180 degrees away from the first hinge means 14. 2. The automatic umbrella opening device for a toy rocket according to claim 1, wherein the toy rocket is a hydraulic rocket that is made of a synthetic resin container and flies by reaction of injection of a pressurized water flow. 3. The toy according to claim 1, further comprising a discharge lever 18 provided on the support body 13 in contact with the nose cone 16 so that the biasing force of the spring means 15 provided on the support body 13 acts on the nose cone 16. Automatic opening device for rockets. 4. The nose cone 16 is fixed by a frictional force due to fitting with the tip of the main body 10.
An automatic umbrella opening device for a toy rocket according to the item.