JP3023855U - Jar stopper - Google Patents

Abstract

(57) [Summary] [Purpose] A plug for fitting and closing the mouth of a jar, pot, etc., which can maintain sufficient adhesion even if those mouths are rough and An object of the present invention is to realize a jar stopper that has sufficient durability without being damaged even when opening and closing, and can exhibit sufficient sealing performance even when the mouth part is a non-round shape. And [Structure] In a stopper for fitting and closing the mouth of a container such as a jar, a cap (2) serving as a grip portion is fixed to the upper portion of the stopper body (1), and the stopper body (1) is fixed. Has a double structure of a plug core (3) made of a hard material and an outer peripheral layer (4) made of an elastic rubber material, and a space (5) formed by a vertical groove on the inner surface side of the outer peripheral layer (4). It is a pot stopper that is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plug for fitting and closing a mouth such as a jar or pot, and more particularly to a plug suitable for closing a non-round mouth such as a mouth of a pottery.

[0002]

[Prior art]

 Traditionally, it has been practiced to inject liquor into pots and jars of pottery for long-term storage. Awamori, in particular, is sold as old liquor because it can be aged and mellowed by putting it in a ceramic jar and storing it. Far-infrared rays generated from pottery produce a finer effect on water molecules and promote the binding of alcohol molecules to water molecules, and the mineral component in the pottery dissolves into the awamori to improve the aging process. The taste of good old sake is demonstrated.

Further, in recent years, the added value for ornamental use has come to be emphasized simply because of the idea of a jar for storing alcoholic beverages. There are also aged pottery or glass jars that have artistic value produced by famous potters, etc., and put them in an awamori for aging. In addition, it is suitable for liquor, such as those that adjust the ingredients of ceramics to generate strong far infrared rays and are magnetized to make liquor that requires a aging period, such as awamori, which can shorten the aging period. Demand for pottery and glass pots and jars is increasing more and more.

As described above, pottery and jars of baked goods have been widely used as containers for alcoholic beverages, and various plugs for sealing these have been developed. Cork stoppers have been commonly used as pot stoppers, but plastic resin stoppers have become widely used in recent years.

FIG. 5 is a vertical sectional view showing an embodiment of a conventional pot stopper. A cap 21 is fixed to the top of the plug body 20 as a grip for inserting and removing the plug. The cap 21 is made of wood or resin and has a disk shape. The plug body 20 is made of a cork material, a plastic resin material, or the like, and is manufactured according to the diameter of the mouth portion 22 of the jar.

When the stopper body 20 is a cork stopper, it has poor wear resistance and is easily damaged. In jars, etc., the inner surface of the mouth 22 is rough, so when the plug is opened and closed, the cork outer surface rubs against the mouth inner surface 22a of the jar and is damaged. There is a problem with durability, such as storage, and it is not suitable for repeated use.

When the plug body 20 is made of a plastic resin, the durability is improved, but since it has no elasticity, it does not adhere well to the inner peripheral surface 22a of the mouth, which is a rough surface such as a jar. It is sufficient, and it cannot be used for the case where the mouth 22 is not a perfect circle. Since alcohol is highly volatile, if the sealing performance is poor, the alcohol content will evaporate and the quality will change.

Further, as in Japanese Patent Application Laid-Open No. 5-42152, a stopper using silicone rubber having elasticity for the stopper body 20 has also been developed. In this case, the adhesion of the inner peripheral surface 22a of the jar opening to the rough surface is good, and the durability is also excellent. However, although the degree of adhesion to the rough surface is good, it is difficult to maintain sufficient sealing performance when the mouth 22 is a non-perfect circle.

[0009]

[Problems to be solved by the device]

 The present invention has been made in view of such problems of the conventional pot stopper, and can maintain sufficient adhesion even if the mouth of a pot or pot has a rough surface, and can be repeatedly used. The purpose of this is to realize a jar stopper that does not damage even during opening and closing operations, has sufficient durability, and can exhibit sufficient sealing performance even with a non-round mouth. It is a thing.

[0010]

[Means for Solving the Problems]

 According to a first aspect of the present invention, as illustrated in FIG. 1, in a stopper for fitting and closing the mouth portion of a container such as a jar, a cap 2 serving as a grip portion is fixed to an upper portion of the stopper main body 1, and The stopper body 1 has a double structure of a stopper core body 3 made of a hard material and an outer peripheral layer 4 made of an elastic rubber material, and a jar having a space 5 formed by a vertical groove on the inner surface side of the outer peripheral layer 4. It is a stopper.

The cap 2 is provided on the upper portion of the stopper body 1, and any cap may be used as long as it serves as a grip portion for pushing the stopper body 1 into or out of the mouth of a jar or the like. As shown in FIG. 1 (1), it may be a hollow disc, or may be provided with a pulling handle or the like, and the material is preferably light and hard, and may be made of resin or wood. .

The plug body 1 has a double structure in which the core of the plug is made of a hard plug core 3 and the outer peripheral layer 4 is made of an elastic rubber material. A space 5 formed by a groove is provided. For example, as shown in FIG. 1, a core is formed of hard resin into a cylindrical shape, and a peripheral portion is formed of a silicone rubber to have a double-layer structure. A vertical groove may be provided on the inner surface side of the silicone rubber layer to form the space 5. The plug core 3 may be made of any hard material, for example, metal, ceramics, or hard resin. The outer peripheral layer 4 may be any rubber material having elasticity and high durability, and is preferably one that is not deteriorated by alcohol. For example, silicone rubber or fluorine rubber may be used.

According to a second aspect of the present invention, as illustrated in FIG. 2, in a stopper for fitting and closing the mouth of a container such as a jar, the stopper body 1a includes a stopper core body 3a made of a hard material and an elastic rubber. It has a double structure of the outer peripheral layer 4a made of a material, and the plug core 3a made of a hard material is provided so as to rotate with respect to the outer peripheral layer 4a made of the elastic rubber material. The inner surface side of the plug has a concavo-convex shape, and the outer peripheral surface of the plug core 3a is also concavo-convex so as to fit into the concavo-convex shape.

The inner side of the outer peripheral layer 4a and the outer peripheral surface of the plug core 3a may be formed in a concavo-convex shape. For example, corrugated or broken line-shaped concavo-convex may be provided. As shown in FIG. 5, the unevenness may be formed so as to have a saw blade-shaped horizontal cross section.

According to a third aspect of the present invention, as illustrated in FIG. 3 (1), in a stopper for fitting and closing the mouth portion 6 of a container such as a jar, the stopper body 1b is made hollow by an elastic rubber material. An expansion member 7a is provided for expanding the elastic rubber wall of the plug body 1b to the outside, and the expansion member 7a is provided so as to move up and down by a screw 8a. It is a stopper.

The plug body may be any hollow plug made of elastic rubber. For example, as shown in FIG. 3 (1), a hollow plug 9 having a hollow inside may be used. ), A pipe-shaped hollow plug 10 having an open bottom may be used. The expansion member may be any member as long as it moves up and down to push the elastic rubber wall of the hollow plug outward, and as shown in FIG. 3 (1), the expansion member can be vertically moved by a screw 8a in the hollow plug 9. A circular disk-shaped expansion member 7a may be provided, and as shown in FIG. 3 (2), a pipe-shaped hollow plug 10 has a conical shape that moves up and down by a bolt screw 8c and a nut 8b at the lower end opening. The expansion member 7b may be provided.

[0017]

[Action]

 As in claim 1, a cap 2 serving as a grip portion is fixed to an upper portion of the stopper body 1, and the stopper body 1 includes a stopper core body 3 made of a hard material and an outer peripheral layer 4 made of an elastic rubber material. When the space portion 5 formed by the vertical groove is provided on the inner surface side of the outer peripheral layer 4 in the overlapping structure, the space portion 5 formed by the vertical groove serves as a cushion, and the inner peripheral surface of the mouth portion of the jar is formed. According to the shape, it can be adhered, and even if the shape of the mouth is not a perfect circle, sufficient sealing performance can be exhibited. Further, due to the elastic rubber material, even if the inner peripheral surface of the mouth portion is rough, the adhesion is good. In addition, elastic rubber has good durability and does not get damaged during use like cork, so it can be used for a long time.

As described in claim 2, the plug body 1a has a double structure of a plug core 3a made of a hard material and an outer peripheral layer 4a made of an elastic rubber material, and the outer peripheral layer 4a made of the elastic rubber material. On the other hand, the plug core 3a made of a hard material is provided so as to rotate, and the unevenness is formed on the inner surface side of the outer peripheral layer 4a, and the plug core is fitted to the unevenness. If the outer peripheral surface of 3a is also formed in a concavo-convex shape, the outer diameter of the plug main body 1a is expanded by rotating the plug core 3a made of a hard material with respect to the outer peripheral layer 4a made of the elastic material. , It is possible to reliably seal the mouth of jars.

That is, as shown in FIG. 2 (2), when the plug core body 3 a rotates, the fitted plug core body 3 a and the concavo-convex portion of the outer peripheral layer 4 a are displaced. Therefore, the outer peripheral layer 4a made of the soft elastic rubber material is pushed by the plug core 3a made of the hard material and expands outward. By this expansion, the outer peripheral layer 4a of the elastic rubber material is pressed against the inner peripheral surface of the jar mouth portion 6 and strongly adheres thereto, and the jar mouth portion 6 can be completely sealed.

It is difficult for handmade pottery and glass products to have the same mouth diameter, and there is a subtle difference in the baking condition, and there is a high added value. It is a thing. For this reason, the outer diameter of the stopper body 1a does not exactly match the diameter of the finished jar, so it is necessary to check the sealing performance after pouring liquor into the jar. There are also things to do. If the outer diameter of the stopper can be changed as in the present invention, the sealing degree can be adjusted after the stopper is closed, so that the reliability of the sealing performance of the stopper can be significantly improved.

According to a third aspect of the present invention, the plug body 1b is formed of an elastic rubber material in a hollow shape, and an expansion member 7a for expanding the elastic rubber wall of the plug body 1b to the outside is provided. If the expansion member 7a is provided so as to move up and down by the screw 8a, even if the outer diameter of the plug body 1c does not match the diameter of the jar and is small, as shown in FIG. 3 (1). Since the elastic rubber material can be pressed outward by the expansion member 7a to reduce the outer diameter of the plug, it can be completely adhered to the inner peripheral surface of the jar mouth 6 and sufficient sealing performance is ensured. can do. Also, the sealing degree can be adjusted again after closing the stopper.

That is, as shown in FIG. 3 (1), by inserting the plug body 1 b into the opening of the jar and tightening the screw 8 a, the expansion member 7 a descends and the elastic rubber wall of the hollow plug 9 is closed. Press it to the outside. Since it strongly adheres to the inner peripheral surface of the jar opening 6, it can be sufficiently sealed. Further, as shown in FIG. 3 (2), by tightening the conical expansion member 7b with the nut 8b, the elastic rubber wall in the shape of a hollow pipe is widened and tightly adhered to the inner peripheral surface of the mouth portion for sealing. Is also good. Further, as shown in FIG. 4, a hollow plug 11 having a tapered surface is provided on the inner surface side, and the disk-shaped expansion member 7c is lifted by a nut 8d and a bolt screw 8e so that the elastic rubber wall of the hollow plug 11 is removed. It may be pushed outward to be in close contact with the inner peripheral surface of the mouth portion 6 of the pot stopper.

When the screw members 8a to 8e for moving the expansion members 7a to 7c up and down are provided so as to be covered by the cap, the appearance looks like a mere plug, so that the simple image of the jar can be obtained. There is no loss. Further, the cap itself may be the screw portion.

[0024]

【Example】

 Next, practical examples of how the pot stopper according to the present invention is embodied will be described. 1 is an embodiment of a pot stopper according to the present invention, (1) is a vertical sectional view, and (2) is a horizontal sectional view taken along the line AA.

In this pot stopper, a stopper body 1 is fixed to a lower portion of a hollow hard resin cap 2, and the stopper body 1 is made of a hollow hard resin as shown in FIG. 1 (2). It has a double-layer structure in which an outer peripheral layer 4 made of silicone rubber is provided so as to cover the outer peripheral portion of the plug core body 3. A vertical groove is formed on the inner surface side of the outer peripheral layer 4 to form a vertically long space portion 5.

As shown in FIG. 1 (1), the hollow plug core 3 and the silicone rubber outer peripheral layer 4 are provided with collars 12a and 12b, respectively, and are provided below the outer peripheral layer collar 12b. It is fixed to the cap 2 by a stop ring 13.

The pot stopper is sealed by inserting the stopper body 1 into the mouth of a pot or the like. Since the outer peripheral surface of the stopper body 1 is made of silicone rubber, even if the inner peripheral surface of the mouth of a jar or the like is not smooth but rough, there is adhesiveness, and sufficient sealing performance can be secured. Moreover, since the space 5 is formed by the vertical groove, the adhesion to the uneven shape is enhanced, and even when the mouth is not a perfect circle, sufficient adhesion is achieved and high sealing performance is secured. can do.

FIG. 2 is a view showing an embodiment of a rotary jar stopper according to the present invention, wherein a double-layered stopper body 1a includes a tubular stopper core 3a having a saw blade-shaped cross section, and The plug core 3a is formed of an outer peripheral layer 4a whose inner surface is formed into a saw blade shape so as to be fitted to the saw blade-shaped outer surface of the plug core 3a, and which is an inner peripheral portion with respect to the outer peripheral layer 4a. 3a can be rotated counterclockwise (direction b). The plug core 3a is made of a hard resin material, and the outer peripheral layer 4a is made of a silicone rubber which is an elastic rubber material.

When a jar is to be plugged using this jar plug, the plug main body 1a is fitted into the jar mouth, and the plug core 3a, which is the inner peripheral layer, is rotated in the b direction. The saw-toothed fitting portion is displaced and the plug core body 3a pushes and expands the outer peripheral layer 4a made of soft silicone rubber to the outside. As a result, the inner peripheral surface of the mouth of the jar is firmly adhered, and reliable sealing is possible. When the stopper is opened, by rotating the stopper core 3a in the reverse direction, that is, by rotating the stopper core 3a in the direction a, the outer peripheral layer 4a returns to its original state and contracts. Can be pulled out. Therefore, the outer peripheral surface of the stopper does not rub against the inner peripheral surface of the opening of the jar and is not damaged or worn by opening and closing the stopper.

FIG. 3 is a view showing an embodiment of a pot stopper using an expanding member according to the present invention. (1) is a pot having a hollow stopper 9 provided with a disk-shaped expanding member 7a. It is a vertical cross-sectional view showing an embodiment of the stopper, and (2) is a vertical cross-sectional view showing an embodiment of the pot stopper in which the conical expansion member 7b is provided in the lower portion of the pipe-shaped hollow stopper 10.

In (1), a hollow silicone rubber stopper body 1b is fixed to the bottom of a hollow hard resin cap 2b, and the top 14a of the hollow cap 2b is detachably screwed. A tightening screw 8a is provided inside. The screw 8a is screwed to the cap bottom plate 15a and penetrates into the hollow plug 9, and a disc-shaped hard resin expansion member 7a is rotatably attached to the lower end of the screw 8a. ing. The silicone rubber hollow plug 9 is a cylindrical hollow body having a narrowed lower portion and a tapered side surface.

In this pot stopper, the stopper main body 1b is fitted into the mouth portion 6 of the pot, the top portion 14a of the cap 2b is removed, and the internal screw 8a is tightened. When the screw 8a is tightened, the disk-shaped expansion member 7a descends and presses the tapered side surface 16 of the hollow stopper 9 made of silicone rubber to the outside. Therefore, the silicone rubber stopper wall is pressed against the inner peripheral surface of the mouth of the jar to be hermetically sealed. Further, the plug may be plugged after adjusting the outer diameter of the plug body 1b in advance according to the mouth portion 6 of the jar or the like. It can be screwed on, ensuring a secure and easy seal.

After tightening, if the top portion 14a of the cap 2b is attached, it does not change from a normal stopper and does not impair the appearance. In addition, since the cap 2b is made of resin, it can be freely designed according to the color and shape of the jar, such as by treating the upper surface with wood grain or covering it with a cloth. It is also possible to install it by fitting it in. The stopper can be easily removed by loosening the screw 8a, and the stopper main body 1b is not damaged by rubbing against the inner peripheral surface of the mouth 6.

In (2), a stopper body 1c is provided below a hollow cap 2c, and the stopper body 1c is a pipe-shaped hollow stopper 10 made of silicone rubber and having an open bottom. A conical hard resin expansion member 7b is provided below the pipe-shaped hollow plug 10, a bolt screw 8c is fixed to the upper part of the expansion member 7b, and the upper end penetrates the cap bottom plate 15b. And reaches the inside of the hollow cap 2c, and the nut 8b is attached. The upper surface 14b of the hollow cap 2c is screwed so as to cover the outer peripheral portion of the cap bottom plate 15b, and the screwed portion is invisible from the outside.

In this pot stopper, by inserting the stopper body 1c into the mouth portion 6 of the pot and tightening the nut 8b in the cap 2c, the conical expansion member 7b is raised, and the hollow stopper 10 made of silicone rubber is used. Is spread out so that the silicone rubber wall is brought into close contact with the inner peripheral surface of the jar mouth portion 6 to be hermetically sealed. Due to its structure, it is possible to manufacture a plug with a small outer diameter, and it can also be used for a narrow jar such as an elongated jar.

FIG. 4 shows another embodiment of the pot stopper using the expansion member according to the present invention, in which the stopper body 1d is attached to the lower portion of the hollow cap 2d, and the stopper body 1d is made of silicone. The hollow plug 11 is made of rubber and has a taper on the lower portion of the inner peripheral surface. A disk-shaped hard resin expansion member 7c is provided on the tapered surface portion, a bolt screw 8e is fixed to the upper portion of the expansion member 7c, and the upper end portion penetrates the cap bottom plate 15c and the hollow cap 2d. It has reached the inside and has a nut 8d attached. The hollow cap 2d is composed of a cap bottom plate 15c to which a hollow plug 11 is attached and an upper cover 14c attached to the upper part thereof, and the upper cover 14c is screwed to the cap bottom plate so as to be easily attached and detached. ing.

In this pot stopper, the disc-shaped expansion member 7c is lifted by fitting the stopper body 1d into the mouth portion 6 of the pot, removing the upper cover 14c of the cap 2d, and tightening the internal nut 8b. The expansion member 7c is lifted to spread the side wall surface of the inner stopper 11 made of soft silicone rubber, and the side wall surface of the silicone rubber is pressed against the inner peripheral surface of the jar mouth portion 6 so as to be in close contact therewith for sealing. Is. The expansion member 7c does not come into contact with the liquor or the like in the jar, and since it is pressed upward from the inner side of the jar, it is possible to achieve a safer and more reliable seal.

[0038]

[Effect of device]

 As in claim 1, a cap 2 serving as a grip portion is fixed to an upper portion of the stopper body 1, and the stopper body 1 includes a stopper core body 3 made of a hard material and an outer peripheral layer 4 made of an elastic rubber material. Due to the double-layered structure and the space portion 5 formed by the vertical groove on the inner surface side of the outer peripheral layer 4, the inner peripheral surface of the mouth portion such as a jar is not smooth but rough. Adhesiveness can be maintained, and even if the mouth of a jar or the like is not a perfect circle, the vertical groove allows the cushioning effect of the space 5 to ensure adhesion, and the mouth of a jar or pot It is possible to provide a highly reliable pot stopper that is not affected by the surface condition or shape of the pot. Further, the plug core 3 can be made of inexpensive ABS resin or the like, and the expensive elastic rubber material is used only in the outer peripheral layer, and since the vertical groove is provided, the usage amount is small. , Can be manufactured at low cost.

As described in claim 2, the plug body 1a has a double structure of a plug core 3a made of a hard material and an outer peripheral layer 4a made of an elastic rubber material, and the outer peripheral layer 4a made of the elastic rubber material. On the other hand, the plug core 3a made of a hard material is provided so as to rotate, and the unevenness is formed on the inner surface side of the outer peripheral layer 4a, and the plug core is fitted to the unevenness. Since the outer peripheral surface of 3a is also formed in a concavo-convex shape, the outer diameter of the plug body 1a can be changed and the degree of sealing of the jar opening can be easily adjusted. Further, since the outer surface of the plug body 1a is not damaged by rubbing when opening and closing the plug, the life of the plug is extended.

According to a third aspect of the present invention, the plug body 1b is formed of a hollow elastic rubber material, and the expansion member 7a for expanding the elastic rubber wall of the plug body 1b to the outside is provided. Since the expansion member 7a is provided so as to move up and down by the screw 8a, the expansion body 7a allows the plug body 1b to be expanded and contracted by the screw 8a. For this reason, the degree of sealing can be adjusted freely, and the plug will not be worn or damaged when it is attached or removed, and it can be used with confidence. Moreover, it can be reliably sealed with screws, which enables long-term use.

As described above, according to the present invention, it is possible to reliably and easily seal and open the mouth of a jar or a pot, and to realize a jar stopper that is free from wear and damage. it can.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a pot stopper according to the present invention.

FIG. 2 is a view showing an embodiment of a rotary bottle stopper according to the present invention.

FIG. 3 is a view showing an embodiment of a pot stopper using an expansion member according to the present invention.

FIG. 4 is a view showing another embodiment of the pot stopper using the expansion member according to the present invention.

FIG. 5 is a view showing an example of a conventional pot stopper.

[Explanation of symbols]

 1, 1a, 1b, 1c, 1d Plug body 2, 2b, 2c, 2d Cap 3, 3a Plug core (hard resin) 4, 4a Outer peripheral layer (silicone rubber) 5 Space (vertical groove) 6 Bottle mouth 7a, 7b, 7c Expansion member 8a Screw 8b, 8d Nut 8c, 8e Bolt screw 9, 10, 11 Hollow plug 12a, 12b Collar portion 13 Stop ring 15a, 15b, 15c Cap bottom plate 16 Tapered side surface

Claims (3)

[Scope of utility model registration request] 1. A plug for fitting and closing a mouth of a container such as a jar, wherein a cap (2) serving as a grip portion is fixed to an upper portion of the plug body (1). 1) has a double structure of a plug core (3) made of a hard material and an outer peripheral layer (4) made of an elastic rubber material, and a space (5) formed by a vertical groove on the inner surface side of the outer peripheral layer (4). ) Is provided. 2. A plug for fitting and closing a mouth of a container such as a jar, wherein the plug body (1a) comprises a plug core (3a) made of a hard material and an outer peripheral layer (4a) made of an elastic rubber material. Outer layer (4) made of the elastic rubber material.
A plug core (3a) made of a hard material is provided so as to rotate with respect to a), and unevenness is formed on the inner surface side of the outer peripheral layer (4a) so that it fits into the unevenness. In addition, the outer peripheral surface of the plug core (3a) is also formed in an uneven shape, the jar stopper. 3. A plug for fitting and closing a mouth of a container such as a jar, wherein the plug main body (1b) is formed of an elastic rubber material in a hollow shape, and the elastic rubber of the plug main body (1b). A pot stopper, characterized in that an expansion member (7a) for expanding the wall to the outside is provided, and the expansion member (7a) is provided so as to move up and down by a screw (8a).