JP3071081U - Cold and hot water sac - Google Patents

Abstract

(57) [Summary] [Problem] When hot water is poured into a bag, it is not hot even if it has a screw lid mounting portion, the bag does not fall off from the screw lid mounting portion, and it is safe and easy to manufacture. An object of the present invention is to provide a cold / hot sac. A bag (31) made of a flexible material,
A screw cap (32) having an external thread formed on the outer peripheral surface, and a female screw (41a) meshing with the external thread of the screw cap are formed on the inner peripheral face, and are mounted so as to be in close contact with the inner peripheral face of the mouth of the bag. And a threaded interior ring (41), and an exterior ring (42) mounted on the outer peripheral surface of the mouth of the bag and sandwiching the mouth region of the bag between the threaded interior ring. In the water sac (3), the threaded interior ring (41) is made of synthetic resin, a flange (41b) extending outward is formed at the upper end, and a position facing the lower edge of the exterior ring is formed at the outer periphery of the lower end. The protruding edge bulging outward at (41d)
Is formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 TECHNICAL FIELD The present invention relates to a cold / hot sac used mainly for cooling or warming an affected part of a human body, and more particularly, to an improvement of a screw cap mounting portion at a mouth thereof.

[0002]

[Prior art]

 As shown in FIG. 1, a conventional cold / hot sac used for cooling or warming the human body against the skin includes a bag body 11, a screw lid 12, a screw lid mounting portion 13, and the like. The bag body 11 made of a flexible material includes a durable outer skin layer 11a and a water-impermeable inner waterproof layer 11b. The screw lid 12 has a male screw 12a on the outer peripheral surface. The screw lid mounting portion 13 is composed of a threaded interior ring 21 and an exterior ring 22, between which the mouth area of the bag body 11 is sandwiched. The threaded interior ring 21 has a female screw 21a formed on the inner peripheral surface thereof. A waterproof packing 23 is attached to the lower surface of the grip portion of the screw lid 12. A flange 21b that extends outward is formed at the upper end of the threaded interior ring 21, and a region 21c near the outer periphery thereof is folded back so as to sandwich the flange 22a at the upper end of the exterior ring 22. That is, after the interior ring 21 is attached so as to be in close contact with the inner peripheral surface of the mouth portion of the bag body 11, the mouth region of the bag body is tightly sandwiched between the interior ring 21 and the exterior ring 22. The inner ring 21 and the outer ring 22 are attached to the mouth of the bag body 11 by folding back the area 21c near the outer periphery of the outer flange 21b and sandwiching and fixing the upper flange 22a of the outer ring 22. I have to.

However, the conventional cold / hot water sac having the above-described configuration has the following disadvantages. (1) Since the area 21c near the outer periphery of the flange 21b of the interior ring 21 needs to be turned back and fixed to the exterior ring 22, the interior ring 21 and the exterior ring 22 need to be made of a metal such as aluminum. . However, since aluminum has a high thermal conductivity, when hot water is poured into the bag body 11, the heat is transmitted to the interior ring 21 and the exterior ring 22, and if these are heated to a high temperature, they may cause burns. Yes, dangerous. Even if the screw lid 12 is made of synthetic resin, it is necessary to grasp the flange portion of the interior ring 21 and the exterior ring 22 when closing the lid, which is dangerous because it is hot. (2) Since the outer peripheral surface of the inner ring 21 and the inner peripheral surface of the outer ring 22 sandwiching the mouth region of the bag 11 are both flat and have no irregularities, water is not introduced into the bag 11. When the screw cover mounting portion 13 is lifted up, the weight of the water causes the mouth region of the bag body to slide downward, and falls off between the interior ring 21 and the exterior ring 22 to spill water and become unusable. There is. (3) At the time of manufacturing, it is necessary to perform a troublesome operation of turning back the area 21c near the outer periphery of the flange 21b of the interior ring 21 and fixing the area 21c to the exterior ring 22, which requires much time and labor and increases costs. .

[0004]

[Problems to be solved by the invention]

 The present invention has been made to solve the above-mentioned problems of the conventional product.The purpose of the present invention is to make it possible to keep the screw cap hot even when holding hot screwed water into the bag body. Another object of the present invention is to provide a safe and easy-to-manufacture cold / water sac without the bag body falling out of the screw cap mounting portion.

[0005]

[Means for Solving the Problems]

 The above-mentioned object is to form a bag body made of a flexible material, a screw cap having an external thread formed on an outer peripheral surface, and a female screw meshing with the male screw of the screw cap on an inner peripheral surface. An exterior ring attached to the inner peripheral surface of the bag so as to be in close contact with the inner peripheral surface of the mouth, and an outer ring attached to the outer peripheral surface of the mouth of the bag and sandwiching the mouth area of the bag between the inner ring with the screw. Wherein the threaded interior ring is made of synthetic resin, a flange extending outward is formed at the upper end, and an outer flange is formed on the outer periphery of the lower end at a position facing the lower edge of the exterior ring. This can be achieved by a cold and hot water sac characterized by forming a bulging lip.

It is recommended to form a concave groove on the lower surface of the flange of the threaded interior ring for fitting the upper edges of the bag body and the exterior ring, and to form the bag body from the outer skin layer and the inner waterproof layer. It is recommended that the inner waterproof layer be made of medical or food packaging material that is harmless to the human body.

With the above configuration, since the interior ring is made of a synthetic resin having low thermal conductivity by injection molding or the like, the interior ring is not hot even if it is held, and the lower end of the interior ring has a protrusion. The rim prevents the bag body from falling off, and furthermore, it is not necessary to fold the collar of the interior ring and fix it to the exterior ring, so that the production is easy.

[0008]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 2 is an external perspective view showing an embodiment of the cold and hot water sac according to the present invention, and FIG. 3 is a sectional view thereof.

As shown in FIGS. 2 and 3, the cold and hot water sac 3 according to the present invention includes a bag body 31, a screw lid 32, a screw lid mounting portion 33, a packing 43, and the like. . The foldable bag body 31 made of a flexible material includes a durable outer skin layer 31a and a water-impermeable inner waterproof layer 31b. The screw lid 32 is made of a synthetic resin and has a male screw 32a on its outer peripheral surface. The screw lid mounting portion 33 is composed of a threaded interior ring 41 and an exterior ring 42, between which the mouth region of the bag body 31 is sandwiched. The threaded interior ring 41 has a female screw 41a formed on the inner peripheral surface thereof. A waterproof packing 43 is attached to the lower surface of the grip portion of the screw lid 32.

[0010] Thus, the threaded interior ring 41 of the present invention is manufactured by injection molding of a synthetic resin or the like. Therefore, the thermal conductivity is low, and the hot water is put in the bag body 31. Even with the screw lid mounting portion 33, there is no danger of burning, as in the related art. As described above, since the heat conductivity of the interior ring 41 is low, the exterior ring 42 may be made of a metal such as aluminum as in the related art.

In the present invention, a protruding edge 41 d is formed on the outer periphery of the lower end of the interior ring 41 at a position facing the lower end edge of the exterior ring 42, thereby increasing the binding force on the bag body 31. In addition, the bag is prevented from falling off. That is, when the screw cap mounting portion 33 is lifted with the bag 31 filled with water, the bag 31 hangs down, and a force acts downward and toward the center on the bag. Is dispersed as a force for pressing the surface of the protruding edge 41d, so that the force acting to pull it downward is weakened, thereby preventing the bag body 31 from falling off.

A flange 41b is formed at the upper end of the interior ring 41 and extends outward. A concave groove 41c is formed on the lower surface of the flange to fit the mouth area of the bag body 31 and the upper edge of the exterior ring 42. With such a configuration, the troublesome work of folding the inner ring flange and fixing it to the outer ring as in the related art is not required, and the manufacturing becomes easier.

By making the inner waterproof layer 31b of the bag body 31 from a medical or food packaging material harmless to the human body, the cold / hot / water bladder 3 can be used as a storage or carrying container for drinking water. be able to.

[0014]

[Effect of the invention]

 Since the present invention is configured as described above, according to the present invention, when hot water is poured into the bag, it is not hot even if the screw lid mounting portion is held, and the bag body comes off from the screw lid mounting portion. Thus, it is possible to provide a cold and hot water sac that is safe, easy to manufacture, and excellent in practicality. It should be noted that the present invention is not limited to the above embodiment, but encompasses all modified embodiments that can be easily conceived by those skilled in the art from the above description within the scope of the purpose.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a conventionally known cold / hot sac.

FIG. 2 is an external perspective view showing one embodiment of the cold and hot water sac according to the present invention.

FIG. 3 is a sectional view of the cold and hot water sac according to the present invention shown in FIG. 2;

DESCRIPTION OF SYMBOLS 1 Conventional cold / hot water bag 11 Bag body 11a Outer skin layer 11b Inner waterproof layer 12 Screw cover 12a Male screw 13 Screw cover attachment part 21 Threaded interior ring 21a Female screw 21b Flange 21c Folded part 22 Exterior ring 22a Flange 23 Packing 3 Cold / warm water sac according to the present invention 31 Bag body 31a Outer skin layer 31b Inner waterproof layer 32 Screw lid 32a Male screw 33 Screw lid attachment part 41 Threaded interior ring 41a Female screw 41b Flange 41c Concave groove 41d Ridge 42 Exterior ring 43 Packing

Claims (3)

[Utility model registration claims] 1. A bag (31) made of a flexible material,
A screw cap (32) having an external thread formed on the outer peripheral surface, and a female screw (41a) meshing with the external thread of the screw cap are formed on the inner peripheral face, and are mounted so as to be in close contact with the inner peripheral face of the mouth of the bag. And a threaded interior ring (41), and an exterior ring (42) mounted on the outer peripheral surface of the mouth of the bag and sandwiching the mouth region of the bag between the threaded interior ring. In the water sac (3), the threaded interior ring (41) is made of synthetic resin, a flange (41b) extending outward is formed at the upper end, and a position facing the lower edge of the exterior ring is formed at the outer periphery of the lower end. The protruding edge bulging outward at (41d)
A cold and hot water sac characterized by the formation of. 2. A groove (41c) in which the upper edges of the bag body (31) and the exterior ring (42) are fitted on the lower surface of the flange (41b) of the threaded interior ring (41). 2. The cold / hot sac according to 1. 3. The bag body (31) comprises an outer skin layer (31a) and an inner waterproof layer (31b).
2. The cold and hot water bag according to claim 1, wherein b) is made of a medical or food packaging material harmless to the human body.