JPS584521Y2 - flying toys - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a disc-shaped flying toy that is formed to maintain its disc shape by enclosing air.

Conventionally known flying toys of this type include those shown in FIGS. 1 and 2.

This is made by integrally forming a hollow annular part a, a hollow latch part, and a plurality of radial hollow connecting parts C that connect the two with a synthetic resin sheet.
is formed straight from the hollow annular part a toward the center of the hollow latch, so when air is filled in, the hollow annular part and the hollow latch will change in diameter due to expansion, resulting in a hollow connection. A large tensile force acts on the portion C, and this tensile force tends to pull the hollow annular portion a inward, causing deformation such as distortion and waving, and also making it easy for cracks to occur in the welded portion.

In view of the above, the present invention makes the hollow connection part incline in the tangential direction of the hollow part, so that the tensile force acting on the hollow part when air is filled causes the hollow part to twist in the circumferential direction. This allows the toy to be reliably held in a predetermined shape.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 3 and 4, a disk 1 has a hollow annular portion 2 located at its periphery and a hollow latch portion 3 at the center. and,
It is equipped with a plurality of radial hollow connecting parts 4 connecting the two, and these are connected to two flexible synthetic resin sheets 5a and 5b.
By superimposing them and welding the peripheral edge portion 5C, etc., the hollow portions 6, 7.8 in each portion are integrally formed in a communicating state.

Each of the hollow connecting parts 4 is formed so as to be inclined from the inner surface of the hollow annular part 2 in a tangential direction to the hollow locking part 3, and both ends thereof are formed with bent parts 9 and 10 to form a hollow annular part. 2 and the hollow locking part 3, and the end thereof on the hollow annular part 2 side has a small diameter. This prevents the formation of connecting edges 11 and 12 that form an acute angle between the hollow annular portion 2 and the hollow latch portion 3 when the hollow ring portion 2 and the hollow latch portion 3 are provided in a shape, and prevents the occurrence of cracks in the welded portion that are likely to occur at these connecting edges. It has the function of preventing

In order to prevent the occurrence of this crack, the connecting edges 11, 12
When the radius of curvature is increased, especially in the hollow annular part 2, the volume of the boundary part with the hollow connecting part 4 is greatly expanded, and when air is filled in, that part bulges out greatly and the whole is maintained in a uniform annular shape. However, by forming the bent portions 9 and 10, such problems can be solved at the same time.

Further, on one side of the disk 1, a circular plate 13 made of a synthetic resin sheet is superposed, and the synthetic resin sheets 5a, 5b are
The peripheral edge portion 5C is welded and integrated at the same time as the welding of the peripheral edge portion 5C.

This circular plate 13 is provided with an air circulation hole 14 in the center facing the hollow latch 3, and the circular plate 13 is deflected depending on whether the wind pressure is applied to the upper or lower side of the circular plate 13 during flight. The air circulation hole 14 is brought into contact with and separated from the hollow latch 3 to open or close, thereby changing the flight condition.

An air plug 15 for introducing air into the hollow portions 6, 7.8 communicating with each other is mounted at the center of the hollow latch 3.

Note that 16 in the figure indicates a protective circumferential plate that covers the side of the hollow annular portion 2 on which the circular plate 13 is not stretched;
Inside the hollow annular portion 2, a weight for weight adjustment made of a string, a synthetic resin sheet, or the like can be accommodated.

The above-described flying toy is one in which air is filled in the hollow part from the air plug 15, and the toy is thrown so as to fly in a rotating state with the side on which the circular plate 13 is stretched upward or downward.

When the air is sealed, a tensile force is applied to the hollow connecting part 4 along with the expansion of the hollow annular ring part 2 and the hollow locking part 3, but the hollow locking part 3 is pulled by each hollow connecting part 4 and becomes circular. Since twisting occurs in the circumferential direction and the above-mentioned tensile force is absorbed by this twisting, the hollow annular portion 2 does not suffer from distortion or deformation.

Furthermore, due to the above-mentioned tensile force, a force is applied to the connecting edge 11.12 in the direction of opening the angle, but the hollow connecting portion 4
Since both ends of the are connected to the hollow annular portion 2 and the hollow latch portion 3 at approximately right angles by the bent portions 9 and 10, this force is absorbed by the deflection of the hollow connecting portion 4, and the connecting edges 11, 12
No cracks will occur.

As detailed above, according to the flying toy according to the present invention,
Since the hollow annular portion and the hollow locking portion are connected by the hollow connecting portion that is inclined in the tangential direction of the hollow locking portion, the tensile force that acts on the hollow connecting portion when air is filled is applied to the hollow locking portion in the circumferential direction. It can be twisted and absorbed,
As a result, distortion and deformation of the hollow annular portion can be prevented, and the toy can be easily held in a predetermined disk shape. Since the connecting part is connected at a substantially right angle to the part, it is possible to reliably prevent the occurrence of cracks that are likely to occur when the inclined hollow connecting part and the hollow annular part and the offshore latch part are connected at an acute angle. Moreover, since the bent part on the hollow annular part side has a small diameter, the volume of the connecting part does not particularly expand as in the conventional case, and therefore the hollow annular part can be made almost uniform as a whole. It can be held in an annular shape.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and A-A of a conventional flying toy.
3 and 4 are a plan view and a sectional view of an embodiment of the flying toy according to the present invention. 1...Disc, 2...Hollow annular portion, 3.
...Hollow latch part, 4...Hollow connection part,
5a, 5b...Synthetic resin sheet, 15...
・Air plug.

Claims (1)

[Scope of utility model registration request] A hollow annular portion located at the periphery of the disk, a hollow latch portion at the center, and a plurality of radial hollow connecting portions connecting the two are integrally formed using a synthetic resin sheet by making these hollow portions communicate with each other. The hollow connecting part is inclined in the tangential direction of the hollow latch, and has a hollow annular shape and a bent part extending substantially perpendicularly to the hollow latch at both ends thereof,
In addition, the bent portion on the side of the hollow annular portion is formed to have a small diameter to the extent that the hollow annular portion can be held in a uniform annular shape, and an air plug is provided at the center of the hollow latch portion. A flying toy featuring