JP7658554B2 - Bottle cover for keeping cool and warm - Google Patents

Description

The present invention relates to a bottle cover for keeping bottles cool or warm, which can store a bottle having a substantially cylindrical body with a bottom, a neck with a removable cap attached via a substantially inverted funnel-shaped shoulder, and can keep the bottle cool or warm.

Beverages such as water and tea are often sold in bottles. As is well known, such bottles generally have a generally cylindrical body with a bottom, a cylindrical neck with a removable cap, and a generally inverted funnel-shaped shoulder.
Bottled beverages are usually sold at the ideal drinking temperature, either chilled or heated, but plastic bottles, the most common type of beverage bottle, are made from thin synthetic resins such as polyethylene terephthalate, which have poor heat retention and return to room temperature in a relatively short period of time.
Therefore, there have been bottle covers for storing PET bottles and keeping the beverage cold or warm in order to maintain the ideal drinking temperature for a long time (see Patent Document 1).

The bottle cover for keeping things cold and warm described in Patent Document 1 includes an insulated container with an insulated structure and a perforated press lid that is attached by screwing onto a male screw formed on the outer periphery of the upper part of the insulated container. A PET bottle is then placed in the insulated container, and the press lid is placed on the insulated container so that the neck of the PET bottle protrudes from the hole in the press lid. Furthermore, the shoulder and bottom of the PET bottle are pressed vertically in the internal space of the insulated container by tightening the screws of the press lid, and the PET bottle is fixed in this pressed state.

Special Publication No. 8-25585

The bottle cover for keeping things cool and warm in Patent Document 1 presses the shoulder and bottom of the PET bottle in an upward and downward direction by tightening the screws of the pressure lid, and the PET bottle is fixed in place by this tightening force, so the pressure lid needs to be tightened tightly.
However, some of today's PET bottles have thin walls in order to conserve resources, and if the press-on lid is tightened too much, the force can cause the bottle to deform.
In addition, the press-on lid needs to be turned and tightened to secure the PET bottle, which can be difficult to use for elderly people and others with limited finger movement. Furthermore, if the lid is not tightened enough, there is a risk that the press-on lid of the bottle cover for cooling or heating may come off when pouring a beverage.

The present invention has been made in consideration of the above, and its purpose is to provide a cold/warm bottle cover that can easily and reliably secure the bottle inside.

In order to achieve the above object, the present invention provides
A bottle cover for cold/hot insulation that can store a beverage bottle having a neck with a detachable cap on a substantially bottomed cylindrical body via a substantially inverted funnel-shaped shoulder, and can cover the bottle to keep it cold or hot,
a bottomed, cylindrical, insulated container that is capable of receiving the body of a bottle to be covered and has a height that allows at least a part of the shoulder of the received bottle to protrude;
and a top lid that can be placed over the opening at the top of the insulated container;
The top cover is
A rubber cylindrical part that can be fitted onto the outer periphery of the upper part of the insulated container;
a rubber elastic damping part having a doughnut plate shape that is integrally formed from the upper part of the cylindrical part toward the inside of the insulated container and has a through hole at the center through which the neck of the bottle to be covered passes;
When the bottle to be covered is placed in the insulated container and the top lid is attached, the cylindrical portion fits onto the outer periphery of the upper part of the insulated container and is held in place by being fastened by the elasticity of the rubber, and the neck of the bottle protrudes outward from the through hole and the elastic damping portion abuts against the shoulder of the bottle, thereby elastically deforming by bending into a mountain shape,
Thus, a bottle cover for keeping cool or warm is provided in which the top lid is attached and held to the top of the insulated container by tightening it elastically with the cylindrical part, and the rotation of the bottle within the insulated container can be braked by the frictional force of the elastic braking part.

Moreover, as described in claim 2 ,
The present invention provides a bottle cover for keeping cool or heat as described in claim 1 , wherein the upper lid has an expanded diameter portion formed on the inner peripheral surface of the lower end of the cylindrical portion to form a gap between the upper lid and the outer peripheral surface of the insulated container.

In addition, as set forth in claim 3 , there is provided a bottle cover for keeping things cool or warm according to claim 1 or 2 , wherein the inner surface of the elastic damping portion of the top lid is formed into a smooth surface having a substantially mirror-like finish.

In addition, as described in claim 4 , there is provided the cold/heat-insulating bottle cover according to any one of claims 1 to 3 , wherein the rubber is silicone rubber.

According to the bottle cover for keeping drinks cold and warm (hereinafter simply referred to as the "bottle cover") of the present invention, when a beverage bottle of a size such that all or part of its shoulder protrudes above the opening of the insulated container is stored in the insulated container and the top lid is attached, the neck of the bottle protrudes outward through the through hole in the top lid and the rubber elastic braking part abuts against the shoulder of the bottle, bending and elastically deforming into a mountain shape, so that the stored bottle can be easily and securely fixed while applying moderate pressure due to the elasticity of the rubber, and since the frictional force of the elastic braking part prevents the bottle from rotating inside the insulated container, there is no need to hold the bottle inside the insulated container by hand each time, even if the bottle cap has a screw structure and can be attached and detached by rotation.

According to the bottle cover of claim 2 , the inner circumferential surface of the lower end of the cylindrical part is formed with an expanded diameter part to form a gap between the outer circumferential surface of the insulated container and the cylindrical part, so that the lower end of the cylindrical part can be easily rolled up using the gap, which makes it extremely easy to remove the attached top lid.

In addition, according to the bottle cover described in claim 3 , the inner surface of the elastic braking portion of the top lid is formed into a mirror -like smooth surface, which reduces unevenness on the rubber surface and increases frictional resistance, thereby more reliably preventing the bottle from rotating.

Furthermore, according to the bottle cover of the fourth aspect, at least the rubber forming the elastic damping portion is made of silicone, which has excellent self-adhesiveness and flexibility, so that the elastic damping portion can more reliably prevent the bottle from rotating.

FIG. 2 is a perspective view of a bottle cover with a portion in cross section. FIG. 2 is a front view of the bottle cover with the right half in cross section. FIG. 2 is an exploded perspective view of FIG. 1 . FIG. 4 is a vertical cross-sectional view of the bottle cover showing a state in which a bottle is stored. FIG. 2 is a vertical cross-sectional view of the bottle cover showing a state in which a long bottle is stored.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The bottle cover 1 of the present invention is intended to store a bottle 2 containing a beverage such as water, tea, or coffee and to maintain the beverage at the optimum drinking temperature for a long period of time. A typical example of a bottle 2 to be kept cool or warm is a so-called plastic bottle.
As is well known, such a bottle 2 generally comprises a cylindrical body 2a having a generally bottomed cylindrical shape, a cylindrical neck 2c equipped with a removable screw cap 2b, and a generally inverted funnel-shaped shoulder 2d. Bottles come in two types: hard bottles with high rigidity and soft bottles that can be easily crushed.

The bottle cover 1 of the embodiment comprises a bottomed, cylindrical insulated container 3 capable of housing a body 2 a of a bottle 2 , and a top lid 5 that is placed over an opening 4 of the insulated container 3 .
The heat-insulating container 3 is made of stainless steel and has a heat-insulating structure in which a sealed space 6 of a double wall is evacuated.

The top lid 5 is made entirely of rubber (silicone rubber in this embodiment) and has a cylindrical section 7 that can fit around the upper outer periphery of the insulated container 3, and a doughnut-shaped elastic damping section 9 that is formed from the top of the cylindrical section 7 toward the inside of the insulated container 3 and has a through hole 8 in the center that is slightly larger in diameter than the neck 2c of the bottle 2.

The cylindrical portion 7 of the upper lid 5 is an elastic ring-shaped band made of silicone rubber, with an inner diameter that is slightly smaller than the outer diameter of the upper part of the insulated container 3. Therefore, when fitted onto the upper part of the insulated container 3, a clamping force due to the elasticity of the rubber acts, and the clamping force and the frictional force of the rubber keep the upper lid 5 attached to the insulated container 3.
As shown in the enlarged view of Fig. 5, the range from the upper end of the inner peripheral surface of the cylindrical portion 7 to the starting end of the enlarged diameter portion 10 described later becomes the fitting allowance 11a that can exert a frictional force by adhering to the insulated container 3, but this fitting allowance 11a is set to be larger than the fitting allowance 11b required for mounting and holding the upper part of the insulated container 3 with a margin. Therefore, depending on the difference in length between the actual fitting allowance 11a formed on the cylindrical portion 7 and the minimum necessary fitting allowance 11b, bottles 2 of different heights can be flexibly accommodated, as shown by the solid line and the imaginary line in the enlarged view of Fig. 5. Incidentally, the solid line in the enlarged view of Fig. 5 corresponds to a tall bottle 2, and the imaginary line in the enlarged view of Fig. 5 corresponds to a short bottle 2. Note that the fitting allowance 11b required for mounting and holding the upper part of the insulated container 3 has a certain practical range due to factors such as the wetness of the surface of the insulated container 3, the temperature of the cylindrical portion 7, and aging deterioration of the rubber, so the actual fitting allowance 11a should be larger than that in consideration of these factors.

A tapered expanded diameter portion 10 expanding downward is formed on the inner peripheral surface of the lower end of the cylindrical portion 7, which creates a gap 12 that opens downward between the cylindrical portion 7 and the outer peripheral surface of the insulated container 3. This gap 12 can be used to easily roll up the lower end of the cylindrical portion 7, making it extremely easy to remove the top lid 5 from the insulated container 3.
In addition, on the outer periphery of the tubular portion 7, convex rib portions 13 having a semicircular cross section are formed at equal pitch in the vertical direction, thereby enhancing the fastening force and flexibility (ease of rolling up) of the tubular portion 7.

As described above, the elastic damping portion 9 of the top lid 5 is formed from the upper portion (top) of the cylindrical portion 7 toward the inside of the insulated container 3, and has a donut plate shape with a through hole 8 in the center that is slightly larger in diameter than the neck portion 2c of the bottle 2, and the inner surface 14 is formed into a smooth surface that is almost mirror-like.
Rubber, particularly silicone rubber, which is the material of the elastic damping portion 9, has excellent self-adhesiveness and flexibility and has high frictional resistance, but the smoother the surface is made, the fewer irregularities there are, and the greater the frictional resistance becomes. Any method can be used to make the inner surface 14 of the elastic damping portion 9 smooth, but one example is to finish the corresponding surface of the mold used for molding into a mirror-like surface. Of course, the smoother the inner surface 14 of the elastic damping portion 9, the better, but it is not necessary to finish it to an exact mirror surface.

Next, a method of using the bottle cover 1 of the embodiment will be described.
The bottle 2 that can be accommodated by the bottle cover 1 of the embodiment has a body 2a whose thickness is slightly smaller than the inside diameter of the insulated container 3, and a height such that a part of the shoulder 2d as shown in Fig. 4 or the entire shoulder 2d as shown in Fig. 5 protrudes beyond the opening 4 at the upper end of the insulated container 3. However, since the top lid 5 is attached and held in place by fitting the cylindrical part 7 into the insulated container 3 as described above, bottles 2 that are tall enough that the necessary fit 11b cannot be ensured, that is, bottles 2 that are so tall that the fit of the cylindrical part 7 becomes too shallow when the top lid 5 is attached, are excluded.
Furthermore, the bottle 2 may have a shape in which a constriction is provided midway through the body 2a, or a shape in which the shoulder 2d has numerous cut surfaces like diamonds, and may be of any strength, such as a hard material with high rigidity or a soft material that is easily deformed.

Before the bottle 2 is stored in the bottle cover 1, the top lid 5 is attached to the top of the insulated container 3 as shown in Figures 1 and 2, and the top lid 5 is removed by lifting it up as shown in Figure 3. At this time, it can be removed relatively easily by rolling up the outside of the enlarged diameter portion 10 of the cylindrical portion 7 and lifting it up.
Then, the bottle 2 containing a cold beverage such as chilled water in summer, or a hot beverage such as warm tea or coffee in winter, is placed in the insulated container 3. Since the screw cap 2b of the bottle 2 needs to be twisted strongly when opening, it is advisable to open and retighten the cap before placing the bottle in the insulated container 3.

Next, the top lid 5 is stretched radially and fitted onto the top of the insulated container 3, and the neck 2c of the bottle 2 is protruded outward from the through hole 8, and the top lid 5 is pulled down until the elastic braking portion 9 abuts against the shoulder 2d of the bottle 2 and elastically deforms into a mountain shape, as shown in Figures 4 and 5.
In this state, the top lid 5 is attached and held on the top of the insulated container 3 by the fastening force due to the elasticity of the cylindrical part 7 and the frictional force of the rubber, and the elasticity of the elastic damping part 9 applies an appropriate pressure to the shoulder part 2d of the stored bottle 2. Therefore, the stored bottle 2 can be easily and securely fixed inside the insulated container 3, and since the rotation of the bottle 2 inside the insulated container 3 is suppressed by the frictional force of the elastic damping part 9 acting on the shoulder part 2d, the screw cap 2b can be rotated to attach and detach the bottle 2 without having to hold it down with your hand each time.
When removing the bottle 2 from the bottle cover 1, the top lid 5 can be removed by rolling up and pulling up the outer side of the enlarged diameter portion 10 of the cylindrical portion 7.

Although the present invention has been described above by way of an embodiment, the present invention is not limited to the above embodiment. For example, the above embodiment employs a vacuum double wall as the insulating structure of the insulating container 3, but an insulating material such as polystyrene foam may be provided on the inside of the cup-shaped container.
In addition, the above embodiment is configured to include all of the elements of claims 1 to 5 as the most preferred embodiment, but the elements of claims 2 to 4 may be selectively adopted as appropriate within the scope that does not impair the effects of the invention.

REFERENCE SIGNS LIST 1 bottle cover 2 bottle 2a body 2b cap 2c neck 2d shoulder 3 insulated container 4 opening 5 top lid 7 cylindrical portion 8 through hole 9 elastic damping portion 10 enlarged diameter portion 11a fit margin 11b fit margin 12 gap 14 inner surface

Claims (4)

A bottle cover for cold/hot insulation that can store a beverage bottle having a neck with a detachable cap on a substantially bottomed cylindrical body via a substantially inverted funnel-shaped shoulder, and can cover the bottle to keep it cold or hot,
a bottomed, cylindrical, insulated container that is capable of receiving the body of a bottle to be covered and has a height that allows at least a part of the shoulder of the received bottle to protrude;
and a top lid that can be placed over the opening at the top of the insulated container;
The upper cover is
A rubber cylindrical part that can be fitted onto the outer periphery of the upper part of the insulated container;
a rubber elastic damping part having a doughnut plate shape that is integrally formed from the upper part of the cylindrical part toward the inside of the insulated container and has a through hole at the center through which the neck of the bottle to be covered passes;
When the bottle to be covered is placed in the insulated container and the top lid is attached, the cylindrical portion fits onto the outer periphery of the upper part of the insulated container and is held in place by being fastened by the elasticity of the rubber, and the neck of the bottle protrudes outward from the through hole and the elastic damping portion abuts against the shoulder of the bottle, thereby elastically deforming by bending into a mountain shape,
This bottle cover for keeping bottles cool and warm is characterized in that the top lid is attached and held to the top of the insulated container by the elastic tightening of the cylindrical part, and the rotation of the bottle within the insulated container can be braked by the frictional force of the elastic braking part. 2. The bottle cover for keeping cold or warm as described in claim 1 , wherein the upper lid has an enlarged diameter portion on the inner surface of the lower end of the cylindrical portion to form a gap between the inner surface of the insulating container and the cylindrical portion. 3. The bottle cover for keeping cool or heat insulated according to claim 1 , wherein an inner surface of the elastic damping portion of the top lid is formed into a smooth mirror -like surface. 4. The bottle cover for keeping things cool or warm according to claim 1, wherein the rubber is silicone rubber.

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