JPS6334718Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the improvement of balloon toys and is mainly used in the industrial field of manufacturing and selling plastic balloon toys.

(Prior art) Conventional balloon toys are constructed by overlapping two synthetic resin films and heat welding their peripheries.A rubber tube of the required length is extended to the outside from a vent provided at the periphery. After the balloon is inflated by blowing gas through the rubber tube, the protruding part of the rubber tube is tied tightly to prevent gas leakage, or the balloon is installed in the center of the balloon body. It is widely known that a one-way valve is attached to the vent port, and the one-way valve is closed to prevent the blown gas from leaking out.

However, in the former case, not only is the operation of tying the rubber tube complicated, but also a part of the gas blown in during tying tends to leak out, and in the latter case, a special procedure is required to attach the one-way valve. It is disadvantageous in that it requires a structure and labor, resulting in high cost, and is also prone to failure during use, resulting in a decrease or loss of the closing function as a one-way valve.

(Purpose of the present invention) The present invention was developed in order to eliminate the above-mentioned drawbacks, and has an extremely simple structure that can reliably prevent the leakage of the gas blown into the balloon toy. It is an object of the present invention to provide a balloon toy that is easy to supply and exhaust, has few failures, is easy to manufacture, and is inexpensive.

(Structure of the present invention) The present invention consists of overlapping two synthetic resin films, bonding their peripheries to form a balloon toy body with an opening in a part of the periphery, and filling the opening with synthetic resin. A flat ventilation tube made of film is inserted, a part of which protrudes outside the main body, and the outer periphery of the inserted part of the ventilation tube is glued to the inner periphery of the opening of the main body, so that the inside and outside of the main body can be connected only through the ventilation tube. This relates to a balloon toy that is connected to each other.

(Embodiments of the present invention) Below, embodiments of the present invention will be described based on the attached drawings. A synthetic resin film, in which two sheets of the film are used as raw materials and the lip-shaped protrusions 2, 2 and other peripheral edges are aligned and polymerized, and the entire periphery of the protrusions 2, 2 except for the tip edge is overlapped. A flat balloon toy main body 4 having an opening 3 in a portion of the periphery is constructed by adhering by heat welding means. Reference numeral 5 denotes a flat vent pipe which is inserted into the main body from the opening 3 of the main body 4 to a required length and has its tip slightly protruding from the main body, and is made into a rectangular shape with an extremely flexible vinyl chloride synthetic resin film. The tip protrusion on one side is made to protrude slightly longer than the tip protrusion on the other side to form a guide tongue piece 5a.
has been formed.

Thus, the ventilation pipe 5 inserted into the opening 3
At the same time or after the synthetic resin films 1, 1 are bonded, the outer periphery of the inserted portion is linearly heated to the inner periphery of the opening 3 of the main body 4, as shown in FIG. By welding 6 and heat welding 7 the remaining inner peripheries of the openings to each other in a linear manner, the main body 4 is
A balloon toy is constructed in which the inside and outside of the balloon are communicated only through the ventilation pipe 5.

When blowing gas into the balloon toy configured as described above, the tip of the air supply port of the air supply device can be easily inserted into the ventilation pipe 5 by using the guide tongue piece 5a of the ventilation pipe 5. In addition, when the balloon toy is inflated as shown by the chain line in FIG. The vent pipe is actuated in the direction of the arrow in the direction of the arrow, and the vent pipe functions as a closing valve to reliably prevent gas from leaking. ,
By inserting a bar or straw-shaped tubular body into the ventilation pipe and pushing open the blocked portion, the air can be smoothly evacuated.

Note that if pressure-sensitive adhesive is applied to the required locations on the inner surface of the ventilation pipe 5 (locations corresponding to the adhesive portions 6),
This makes it possible to more reliably maintain the sealing effect of the vent pipe due to gas pressure.

(Operations and effects of the present invention) According to the present invention configured as described above, the vent pipe can be hermetically closed by the pressure of the gas blown into the main body without using a so-called "one-way valve". It can reliably prevent gas leakage, there is no risk of failure like with one-way valves, it can achieve gas sealing for a long time, air supply and exhaust operations are simple, and the structure is simple. It is possible to achieve various effects such as being able to provide the product at a low cost.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is an enlarged partially cutaway plan view of the main part, and FIG. 3 is an explanatory view of the vent pipe in a sealed state. 1...Synthetic resin film, 3...Opening, 4...
... Balloon toy body, 5... Ventilation pipe.

Claims (1)

[Scope of utility model registration request] Two synthetic resin films are overlapped and their peripheries are glued together to form a balloon toy body with an opening in a portion of the periphery, and a flat ventilation pipe made of synthetic resin film is inserted into the opening. A balloon toy comprising a part of the balloon toy projecting outside the main body, and an outer periphery of the insertion part of the ventilation pipe being adhered to the inner periphery of the opening of the main body, so that the inside and outside of the main body are communicated only through the ventilation pipe.