JPS6214850Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water pillow, and more particularly to a water pillow made of a synthetic resin film and having an injection valve.

Water pillows that have been widely used in the past are made of hard rubber, etc., and the mouth is closed using a separate stopper, but the drawback of this water pillow is that it always requires a stopper, If the tool is damaged or lost, it will become unusable.

The present invention does not require a separate stopper, has an extremely simple structure, allows easy injection of cold water such as water, ice, etc., and is a water pillow made of a synthetic resin film that has an injection valve that completely prevents leakage. It provides:

An example of implementing the present invention will be described in detail below with reference to the drawings. The main body 1 is made of a synthetic resin film such as polyethylene, polypropylene, polyvinyl chloride, or synthetic rubber ethylene vinyl acetate copolymer, etc.
Something around 200μ is optimal. This main body is made by appropriately cutting a tubular body produced by the inflation extrusion method, and heat-sealing the lower end thereof to form a bottom portion 2. Part of the upper end is opened 3, and the other portion is heat-sealed 4 to close the upper end.

Next, one end 5 is made to protrude from the opening 3 at the same position or above the upper end of the main body 1, and the other end 6 is
is placed in the main body and the tubular body 7 is heat-sealed 8 and attached. (Figure 1 shows the tubular body protruding from the upper end of the main body.

As a result of many experiments, the tubular body 7 of the present invention is obtained by polymerizing two synthetic resin films 9, 9 by shifting them left and right.
The both sides are heat-sealed 10, 10 in the longitudinal direction to form a tubular body, and the injection port 1 is inserted between the two synthetic resins 9, 9.
Set to 1. Furthermore, inside the main body 1, a tubular body 7
The outside of the tubular body 7 and the inside of the main body are bonded together with heat fusion 12 to prevent the other end 6 of the tubular body 7 from protruding outside the main body due to internal pressure within the main body, flow of injected water, etc. . With the above, the water pillow with the injection valve of the present invention is obtained. Since the present invention has the above-mentioned configuration, the inlet 11 is inserted into a water faucet to fill it with water and to add cold water such as ice. When the water pillow of the present invention is pulled out from the faucet after filling, Figures 4 and 5 appear.
As shown in the figure, the two synthetic resin films 9, 9 constituting the tubular body 7 are shifted to the left and right, and the edges on both sides are heat-sealed in the longitudinal direction to form a flat cylindrical body, so that a simple tubular body can be used. If it were, both sides would swell into a curved shape and water would leak from that part.
The bag is prevented from bulging, and the internal pressure of the bag causes it to stick together from both sides, acting as a valve to completely prevent cold water such as water and ice from flowing out to the outside. When the flat tubular body is attached to the opening, since the two synthetic resin films are shifted from side to side, the heat-sealed portion 8 does not become thicker than when simply attaching the tubular body. Therefore, the sealing effect is increased. In addition, since the tubular body of the present invention and the inside of the bag are bonded together by heat sealing 12, the tubular body will not leak outward from the body even if the internal pressure inside the body or the flow of water after injection occurs. It is prevented from flying out. Therefore, as a result of the above, the water pillow of the present invention has an extremely simple structure, and the injection operation is easy.The injection valve automatically closes as soon as the water injection is completed, so the injection port can be closed using a stop like the conventional water pillow. There is no need to block it.

This provides a water pillow that has great practical value.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the injection valve portion of a water pillow equipped with the injection valve of the present invention, FIG. 2 is a plan view of the injection valve of the present invention, FIG. 3 is a cross-sectional view of FIG. 2, Fig. 5 is a longitudinal sectional view (lower half of each is omitted) showing the operating state of the injection valve of the water pillow of the present invention, and Fig. 6 is a perspective view of the water pillow of the present invention. Main body, 2 is the bottom, 3 is the opening, 4 is heat fusion, 5 is one end, 6 is the other end, 7 is a tubular body, 8 is heat fusion, 9, 9 is a synthetic resin film, 10 is heat fusion, Reference numeral 11 indicates an injection port, and 12 indicates a heat fusion.

Claims (1)

[Scope of utility model registration request] A part of the upper edge is made into an opening, and the remaining part is heat-sealed.
In the water pillow with an injection valve disposed in the opening, the injection valve shifts two synthetic resin films from side to side,
A water pillow having an injection valve formed by heat-sealing both side edges in the longitudinal direction to form a flat tubular body, and then providing heat-sealed parts on the outside of the flat tubular body inside the bag and on the inside of the bag.