JPS586476Y2 - kite - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a kite, and more particularly to a kite in which a wing plate is rotated at the end of a string to generate buoyancy.

Rotational wind turbines are known in which a part or more of a component is rotated by the wind, thereby extracting at least part of its buoyancy.

U.S. Pat. No. 3,079,115 discloses that such a kite consists of a disc made of a highly flexible material such as cardboard and a flat material that can be folded by hand, and when assembled it fits into a slot formed in the disc. A wing body having a shape and a wing body that can be formed is disclosed.

This kite also has a plurality of pairs cut in a zigzag pattern in the material adjacent to both sides of a long hole provided in the disc so that a plurality of pairs are alternately cut from the opposite wall of the long hole so as to cross the center line of the long hole. The blade plate and the disk are assembled by forming locking tabs and inserting a pair of tabs into slits arranged in advance across the center of the blade plate from the front and back sides of the slit. (See especially FIG. 6 of the specification of the above-mentioned Japanese Patent No. 3079115).

In such a configuration, to assemble the disc and the wing plate,
Although there is an advantage that no separate fixing means is required, in actual assembly, the tabs are screened laterally and the vanes are inserted into the slots so that the positions of the slits and slots are approximately aligned. First, one of the pair of tabs must be inserted into the slit from the front side, and then the other tab must be inserted from the back side.

However, when one tab is inserted, the tip of the other tab is laterally displaced from the slit by the length of the tab, so the opposing ends of the elongated holes are offset from each other by the length of the tab. After forcibly deforming the disk as shown in FIG. 3 of the above-mentioned patent specification and aligning the tip of the other tab with the slit, the tab is inserted into the slit. It is extremely difficult for young children and women to assemble such kites correctly.

The present invention relates to a kite similar to that disclosed in the above-mentioned U.S. patent, but made of lightweight foamed plastic and incorporating various constructions to facilitate assembly of the kite and thereby reduce manufacturing costs. This has the above improvements.

Additionally, such structural improvements increase the strength of the kite and make it more resistant to damage caused by use.

SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide a new and improved kite made of lightweight foamed plastic.

Another object of the present invention is to provide a kite made of at least two main parts, which is made of foamed plastic and can be packed flat for shipping.

Still another object of the invention is to assemble a wing plate and a stabilizing disk, both of which are made of foamed plastic;
Another object of the present invention is to provide a kite having a shape that allows each of the kites to be not only assembled together, but also to be able to maintain the assembled state by frictional force even when exposed to strong winds.

Still another object of the present invention is to complete the assembly of an injection-molded wing plate and a thin disc by simply inserting and fitting the wing plate into a long hole provided on the diameter of the disc. and a thick molded part is provided in the elongated hole to compensate for the reduced strength of the disk due to the provision of the elongated hole and to increase the function of holding the wing plate by frictional force. The goal is to provide the following.

Still another object of the present invention is to provide a support bone extending from one end to the other end on the wing plate, to support the wing plate in a horizontally rotatable manner by means of members attached to both ends of the support bone, and to enable the wing plate to rotate freely laterally. board,
It is an object of the present invention to provide a kite configured in a special shape so that the support bone can be housed and held in a predetermined position.

Hereinafter, the present invention will be specifically explained based on embodiments shown in the drawings.

As is clear from the following description, the gist of the present invention is its novel manufacturing method, structure, and novel combination and arrangement of each component, and various embodiments based on this are included in the scope of the following utility model registration claims. It is something that can be done.

As shown in FIG. 1, a kite 10 according to the present invention includes a lightweight disc 1
1 and a laterally elongated vane 20 are assembled so as to be perpendicular to each other, and the disc 11 is fixed so as to cross the center of the long axis of the vane 20.

The wing plates 20 and the disc 11 are formed by molding plastic made by foaming molten resin, or by suddenly injecting granular foamable resin material into a mold and molding them into a flat plate having a large number of bubble chambers. Therefore, it is advantageous to construct the kite 10 in such a way that when it rotates, it can generate a buoyancy force that exceeds its weight.

The vane 20 is held on the diameter line of the disc 11 by the frictional force within the elongated hole 12 preferably formed during molding.

Providing such long holes reduces the strength of the disk 110, so in order to compensate for this weakness and increase the strength of the disk, the long holes 12
Let the thickness of the disk 11 at the periphery of .

Reference numeral 14 in the figure indicates such a thick portion.

The thickened portion 14 also serves to increase the contact area with the wing plate 20, increasing the total frictional force that maintains the kite 10 in its assembled state.

Preferably, the disk 11 is tapered so as to gradually become thinner toward its outer periphery, so as to reduce the weight and reduce the drag force acting on the kite during flight.

The vane plate 20 is formed so that one side thereof is curved in a slightly bulging shape and at the same time becomes gradually thinner toward the outer periphery, so that the cross section as a whole has a streamlined airfoil shape.

Further, on the surface of the wing plate 20 opposite to the direction of the curved bulge, there is provided a raised part 21 extending longitudinally from one end to the other end in the longitudinal direction of the central part thereof.

The raised portion 21 is formed by integrally molding the wing plate 20 in a raised shape so that the wall thickness is partially increased, and includes a pair of parallel ribs 22 and 23 and a groove 24 provided between the pair of lips. A rigid support 25 in the form of, for example, a rod or a tube is fitted into the groove 24.

The support frame 25 extends within the groove 24 over the entire length of the blade, and thread fixing members 26 and 27 are rotatably attached to both ends thereof.

A fork 28 of kite string is tied to the members 26,27.

The bifurcated portion 28 is connected to a thread 29 at its branching point and reaches the ground.

The length of the iron system 29 can be set from about 7.5 m to 30 m or more.

When the kite hits the wing plate 20, the entire kite is moved to the member 26, 27.
The kite is rotated while being supported by it, and during rotation it generates sufficient buoyancy, allowing the kite to fly quite high above the ground.

That is, when the vane plate 20 has its curved bulge surface located on the upper side and is parallel to the wind flow (when rotated 1800 times from the state shown in FIG. 2), the air along the curved bulge surface The air flow is faster than the air flow on the opposite side, ie, along the surface where the raised portion 21 is provided, and this generates a lifting force that lifts the entire kite upward.

During flight, the kite rotates clockwise in Figure 2, so when it is in the state shown in Figure 2, that is, when it has rotated 1800 times from the state explained above, there is almost no reverse lifting force that pulls the kite downward. .

Each time the kite rotates 360 degrees, it receives upward lifting force in a connected manner, and can be assembled in several sets high in the sky.

In FIG. 2, reference numeral 13 denotes an enlarged opening provided at the center of the elongated hole 12, which is connected to a pair of lips 22 formed on the wing plate 20.
23 and a groove 24 therebetween to receive a rod or tube serving as a supporting bone.

As mentioned above, in the kite according to the present invention, the discs and wings are made of extremely lightweight foamed plastic, and the shape of the wings is not approximately S-shaped in cross section, but one side is curved in a bulging shape, and the peripheral edge Because it is formed into a flat plate shape that approximates a streamlined shape that gradually becomes thinner as it approaches, its flying power is significantly greater than in the past.

In addition, assembly is completed by simply inserting and fitting the vanes into the long holes provided in the disc, and the area around the long holes in the disc is made thicker to increase strength. Even women and women can assemble a kite that is sufficiently strong and in perfect condition very easily.

Reference numeral 15 indicates a reinforcing member made of a plastic material that is more rigid than the foamed plastic material forming the disc 11.

The reinforcing member 15 has a short semi-cylindrical shape and passes through the enlarged opening 13 of the elongated hole 12, and is preferably frictionally engaged with the wall surface of the enlarged opening 13 so that the reinforcing member 15 does not move loosely. It is better to keep them engaged.

A support member 25 such as a rod or a tube is disposed in a space on the inner circumference of the reinforcing member 15, and the two maintain an integral relationship preferably by frictional force, so that when an external force is applied, the wing is moved against the disk 11. Board 20
to prevent it from moving.

It is preferable that the top portion 17 of the reinforcing member 15 is held in close contact with a portion of the disk 11.

Further, the top portion 1T may be bonded to the surface of the corresponding portion of the disk 11 using an adhesive.

As shown in FIG. 3, two low ridges 21A, 21B are curved in parallel at the center of the wing plate 20.
A shallow groove 24' is formed between 1B, and one side of the inner wall surface of the elongated hole 12 is fitted into the shallow groove 24', so that the disc 11 is connected to the vane plate 20.
prevent movement along its long axis.

Incidentally, the reference numeral 30 in FIG. 30 is a short plate-shaped protuberance that is integrally formed on the continuous part of the wing plate 20 on both sides for reinforcement and flight stability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a kite that rotates horizontally around a line connecting the ends of the forked parts of the kite string as an axis to generate upward force. is an enlarged side view of Figure 1,
Figure 3 is an enlarged plan view of the main parts of the kite shown in Figures 1 and 2;
FIG. 4 is an enlarged side view of the main part of the kite shown in FIG. 1 with a portion cut away. 10... Kite, 11... Disc, 12...
...Elongated hole, 13... Enlarged part of elongated hole, 14.
... Thick part of disc, 15 ... Reinforcement member,
20... wing plate, 21... raised portion, 21
A, 21B...Ryujo, 22, 23...
・Rip, 24... Groove, 24'... Shallow groove, 25... Support bone, 26.27... Kite string fixing member, 28 ..., the forked part of the kite string.

Claims (3)

[Scope of utility model registration request] (1) - At the center of the other surface of the wing plate 20, which is a horizontally long flat plate made of lightweight foamed plastic, the surface of which is curved in a slightly bulging shape and gradually becomes thinner toward the outer periphery. A raised part 21 having a groove 24 is formed from one end of the longitudinal direction to the other end, and the raised part 21 has a groove 24 in the center of the surface of at least one force of the blade 20 in parallel with the long axis of the blade 20. extending 1
A pair of low ridges 21A, 21B are provided, and the ridge 21A,
A shallow groove 24' is formed between 21B, and a support 25 is fitted into the groove 24 from one end of the wing plate 20 in the longitudinal direction to the other end, and a kite string is fixed to both ends of the support 25. The members 26 and 27 are rotatably attached to each other, and have elongated holes 12 having substantially the same shape as the cross-sectional shape of the center portion of the wing plate 20 on the diameter line, and have thickening on the peripheral edge of the elongated holes 12. A disk 11 made of foamed plastic is provided with a thick portion 14 that is thicker than other portions and gradually becomes thinner toward the outer periphery, and the disk 11 is attached to the wing plate 20. On the other hand, the long hole 1
The disk 11 and the wing plate 20 are assembled at right angles to each other by fitting such that the inner walls of the two are received in the shallow groove 24', and each of the aforementioned kite string anchoring members 26 and 27 is fitted. A kite made by tying together the ends of the forked parts 28°28 of kite string. (2) The elongated hole 12 provided in the disk 11 is slightly corrugated at the center thereof to form an enlarged opening 13, and a reinforcing member 15 is attached to the enlarged opening 13, so that the support bone 25 is The kite according to Claim 1 of the Utility Model Registration Claim, wherein the kite comes into contact with the reinforcing member 15. (3) In at least a part of the wing plate 20, at least one pair of short plate-shaped protuberances 30 are provided on a continuous portion of the side surface of the disc 1.
Paragraph 1 or 2 of claims for utility model registration with 30.
Kites listed in section.