JP3177683U - Balloon rocket - Google Patents

Abstract

To provide a balloon rocket that can improve the reproducibility of a wing-like body, stabilize flight characteristics, and can be used as a training instrument for throwing motion.
In a balloon rocket 1 comprising a plastic balloon body 2 that expands into a cylindrical shape and at least three or more wing parts 3 made of a plastic film, the balloon body and the first wing part are directly fixed, and at least It is a balloon rocket in which a belt-like wing support member 4 extending continuously from the trailing edge of the wing part to the balloon body is attached so as to straddle the wing part and the balloon body.
[Selection] Figure 1

Description

  The present invention relates to a balloon made of a plastic film, and more particularly to a balloon rocket having excellent flight characteristics, in which the body of a rocket-type balloon having a length of about 1 m to be thrown and thrown like a spear is made of a plastic film.

  A lightweight object such as a balloon has unstable flight characteristics, and even if it is thrown with the correct throwing motion, it does not always fly stably. As a method for improving flight characteristics, for example, Patent Document 1 describes that a soft polyethylene film having a thickness of about 0.1 mm is heat-sealed to a balloon body to provide a tail function.

JP-A-9-056934

  However, in Patent Document 1, even if a plurality of wings of the wings are considerably tilted from an upright position, they function as long as they do not vibrate abnormally, or wings of about 5 cm in height rise up by themselves. As it is stated that the wings will stand in a radial state from a cylindrical balloon, the reproducibility of the wing-like body in use is low, so it cannot be said that the flight characteristics are improved sufficiently, and it is used for practice of pitching To use it, it was necessary to stabilize flight characteristics.

  An object of the present invention is to provide a balloon rocket that can improve the reproducibility of a wing-like body, stabilize flight characteristics, and can be used as a training instrument for throwing motion.

  The balloon rocket according to the present invention is a balloon rocket composed of a plastic balloon main body that expands into a columnar shape and at least three or more wings made of plastic film. A wing support member extending continuously from the rear edge of the wing portion to the balloon body is attached.

  A balloon rocket is further provided with a belt-like wing support member extending continuously from the leading edge of the wing to the balloon body.

  Further, the wing support member is a balloon rocket characterized in that it is made of a super-stretched plastic material.

  As a method for fixing the balloon body and the wing, adhesion or welding is preferable, but the method is not limited thereto. Moreover, as a method for attaching the wing support member to the rocket body and the wing portion, in addition to adhesion and welding, a detachable attachment method using an adhesive tape can be employed, but the method is not limited thereto.

  The wing support member has a thickness such that the bending rigidity is higher than that of the wing portion, and is attached to the balloon body at least along the rear edge of the wing portion. By attaching the blade support member in this way, the rising angle of the blade during use can be stabilized. Polyethylene resin sheets and polyethylene terephthalate resin sheets are known as super-stretched plastic materials, and they are easily plastically deformed. Therefore, if a super-stretched plastic material is used for the wing support member, a balloon rocket is not used. Makes it easy to carry the wings along the rocket body, and can be used repeatedly with the wings at any angle when in use.

  According to the present invention, since the wing support member having higher rigidity than the wing portion is continuously provided from the wing edge to the balloon body, the reproducibility of the rising angle of the wing during use can be enhanced. Moreover, vibrations of the wing part during flight can be suppressed by attaching a wing support member having higher bending rigidity than the wing part to the front edge and the rear edge of the wing part. Furthermore, by using a super-stretched plastic material for the blade support member, the blade portion can be repeatedly folded and raised. With such a wing attachment structure, the flight characteristics are stable, and it can be used as a practice tool for pitching.

1 shows an attachment body of a wing part according to the present invention. Fig. 5 shows another attachment of the wing part of the present invention. It is a figure which shows the conventional balloon rocket.

  The balloon rocket 1 of the present invention has a length of 0.5 m to 2 m and a diameter of 5 cm to 10 cm, and a soft polyethylene film tube having a thickness of about 0.1 mm is rounded to form a balloon body 2. The wing portion 3 is attached to a cylinder inflated with air from an inlet (not shown) with a check valve so that a pitching operation can be practiced. The wing 3 is fixed at an angle of 0 to 15 degrees with respect to the major axis direction of the balloon body 2.

  The dimensions of the balloon rocket described in this example are 1 m in length and 6 cm in diameter. The wing shape is a trapezoidal shape with a length of 15 cm and a height of 4 cm to be fixed to the main body, and a thickness of 0.2 mm is used. did.

  FIG. 1 shows an embodiment of the present invention. A wing support member 4 is arranged in a strip shape so as to continue from the rear edge 3A of the wing part 3 to the balloon body 2. The wing support member 4, the balloon body 2, and the wing part 3 are attached with a double-sided adhesive tape. When not in use, the wing support member 4 is extended and the wing portion 3 is formed along the balloon body 2 to prevent the wing portion 3 being transported from being damaged. When in use, the wing support member 4 is attached to the wing portion 3 and the balloon body 2. It is bent near the fixing position, and the wing 3 is raised. In this example, a super-stretched plastic material is used for the blade support member 4. Further, although the blade support member 4 is provided only on the front side of the blade portion, it can also be provided on the back side.

  FIG. 2 shows another embodiment of the present invention. Wing support members 4A and 4B are arranged in a strip shape so as to continue from the rear edge 3A and the front edge 3B of the wing part 3 to the balloon body 2. The wing support members 4A and 4B, the balloon body 2 and the wing part 3 are attached by welding. The wing support members 4A and 4B are made of ultra-stretched plastic material. In this example, since the wing support member 4B is also disposed on the leading edge 3B of the wing part, the vibration of the wing part during flight is suppressed, and the flight characteristics are more stable.

  Note that the flight characteristics in this specification are stable mainly means that the straightness is high, the change rate of the flight posture is small, and the flight distance is long.

1 Balloon Rocket 2 Balloon Body 3 Wings 3A Wings Rear Edge 3B Wings Front Edge 4 Super Stretched Plastic Material

Claims (3)

  In a balloon rocket consisting of a plastic balloon main body that expands into a cylindrical shape and at least three or more wing parts made of a plastic film, the balloon main body and the first wing part are directly fixed, and the wing part from the trailing edge of the wing part A balloon rocket characterized by having a belt-like wing support member that extends continuously to the balloon body.   The balloon rocket according to claim 1, further comprising a belt-like wing support member extending continuously from the leading edge of the wing to the balloon body. The balloon rocket according to claim 1 or 2, wherein the wing support member is made of a super-stretched plastic material.

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