JP2003226341A - Cork plug with knob - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cork plug at a low product cost by easily and stably assembling a synthetic resin knob member with the cork plug using an adhesive in an immobile manner. <P>SOLUTION: The synthetic resin knob body 1 comprising a knob part 2 forming a knob when opening a plug and a shaft part 3 which is vertically suspended from a center of a bottom side 8 of the knob part 2 and has a plurality of longitudinal projecting bars protruded from an outer circumferential surface along the circumferential direction thereof with intervals therebetween, has lower parts thereof formed into a cylindrical piece 4 with a fixing projecting bar 6 circumferentially provided on a lower end, and is inserted in a hole part 12 is assembled with the cork plug 11 having the hole part 12 in a center of an upper end face 13 in an immobile manner by the adhesive 15 filled in a space between the shaft part 3 and the cork plug 11. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cork stopper with a knob, in which a member made of a synthetic resin, which serves as a knob during the opening operation, is fixedly attached to the cork stopper.

[0002]

2. Description of the Related Art Cork stoppers are used as stoppers for beverage containers, particularly for alcoholic beverages, due to their excellent hermeticity, even though synthetic resin stoppers are provided in large quantities at low cost by industrial production. Continues to be.

[0003] This cork stopper is firmly fitted and assembled in the mouth of the container to seal the container. Therefore, when the internal solution is poured from the container, it is strong to remove the cork stopper from the mouth of the container. Since a force is required, a knob member having a diameter larger than that of the cork stopper is fixed to the upper end of the cork stopper, and the knob member is operated to facilitate opening the stopper. Trees are used.

In the case of a wooden picking member, since the wood and the cork are of the same material, they can be firmly adhered by a general adhesive, so that the cork stopper can be easily adhered and fixed to the cork stopper. There is an advantage that can be done.

However, since the wooden picking member has to be manually cut and polished, the productivity is low, and it takes a lot of time to store the wooden picking member, resulting in a high product cost.

Therefore, it has been considered to use a knob member made of a synthetic resin, which can be mass-produced at low cost industrially by using a molding machine.

[Problems to be Solved by the Invention]

However, even if the knob member made of synthetic resin and the cork stopper are adhered to each other by using an adhesive having a strong adhesive force with the cork, the knob member may be the adhesive agent depending on the kind of the synthetic resin of the molding material. However, there is a problem in that the picking member and the adhesive may be peeled off by the force applied at the time of opening the cap, and the picking member and the cork stopper may idle or separate.

[0008] In particular, since this type of cork stopper is used for a food container, the type of adhesive that can be used is greatly limited from the viewpoint of hygiene such as environmental hormones, and a sufficiently large adhesive force is not always required. There is a problem in that it is not always possible to use an adhesive that exhibits performance.

Therefore, the present invention was devised in order to solve the above-mentioned problems in the prior art, and the knob member made of synthetic resin and the cork stopper are not slipped or separated by using an adhesive. The technical object is to fix the cork stopper in a stable manner, and it is therefore an object of the present invention to provide a cork stopper with a knob in which the knob member and the cork stopper are easily fixed and the product cost is low.

[0010]

[Means for Solving the Problems] [Means for Solving the Problems] Of the present invention for solving the above-mentioned problems, the means for carrying out the invention according to claim 1 has a cork stopper having a hole at the center of the upper end surface thereof, and at the time of a cap opening operation. A knob portion to be used as a knob, and a plurality of vertical protrusions are provided so as to hang down in the center of the bottom surface of the knob portion, and the outer peripheral surface of the knob portion is protruded at intervals along the circumferential direction. A protrusion is formed on a cylindrical tubular piece that is provided around the shaft, and a shaft portion that is inserted into the hole portion of the cork stopper is provided with a synthetic resin knob body, and the cork stopper and the knob body are pinched. The immobilization is performed by an adhesive that fills the gap between the body shaft and the cork stopper.

In the cork stopper with knob of the present invention, an inner surface forming a hole portion of the cork stopper and a shaft portion of the knob body inserted into the hole portion of the cork stopper are fixedly assembled with an adhesive. As described above, even if the cork stopper and the adhesive are strongly attached, if the shaft of the knob and the adhesive are weakly attached, the knob of the knob is screwed up to open the stopper. In the middle of the process, that is, while applying the rotating force and the axial pulling force to the picking part of the picking body, the shaft part hung down on the picking part is firmly attached to the mouth of the container. It slips against the stopper or pulls out of the cork stopper.

However, the cork stopper with a knob of the present invention is
In addition to the adhesive action between the shaft of the knob and the adhesive, the vertical ridges protruding from the outer peripheral surface of the shaft and the adhesive filled around the vertical ridges and solidified engage in the circumferential direction. It will be in a state where
Shaft and cork stopper are assembled without idling, and
Since the cork stopper and the adhesive firmly adhere to each other, the knob body and the cork stopper do not rotate idly, and can be firmly and stably assembled immovably.

Further, in addition to the adhesive action between the shaft portion of the knob and the adhesive, a fixing ridge projectingly provided on the lower end of the tubular piece at the tip of the shaft portion and the periphery of the fixing ridge are filled. Since the solidified adhesive is engaged in the axial direction, the shaft portion and the solidified adhesive are fixed immovably in the axial direction, and the cork stopper and the adhesive are firmly bonded. The knob body and the cork stopper will not be separated in a slip-out state, but will be firmly and stably assembled immovably.

According to a second aspect of the present invention, in the structure of the first aspect of the invention, a plurality of radial lateral grooves are provided on the bottom surface of the knob portion of the knob body at intervals along the circumferential direction, The bottom surface and the upper end surface of the cork stopper are fixedly attached with an adhesive.

When rotational force is applied to the cork stopper via the shaft of the knob, the rigidity of the cork is low, and therefore the cork stopper itself is twisted and deformed by the time the outer peripheral surface of the cork begins to slide on the inner surface of the container mouth. Although it is evacuation, in the invention according to claim 2, in addition to the immovable assembly of the shaft portion of the knob and the cork stopper, the bottom surface of the knob portion and the upper end surface of the cork stopper,
The lateral groove arranged on the bottom surface and the adhesive filled in the lateral groove and solidified are engaged in the circumferential direction to immovably assemble so that the relative displacement cannot be performed. It can be directly transmitted to the outer peripheral surface of the stopper, and accordingly, a stronger opening operation force can be applied to the cork stopper.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, a plurality of split grooves are arranged in the tubular piece of the shaft portion of the knob body at intervals along the circumferential direction. I set it up,
Is added.

According to the third aspect of the invention, the side surface of the tubular piece forming the split groove is circumferentially engaged with the adhesive which is filled and solidified in the split groove to thereby form the shaft portion. In addition to reinforcing the non-slip assembly with the adhesive, the air inside the cylinder can escape from the split groove when filling the inside of the cylinder with adhesive, so the adhesive can be packed inside the cylinder firmly. Easy to fill.

According to a fourth aspect of the present invention, there is provided the first aspect of the present invention.
In addition to the constitution of the invention described in 2 or 3, the knob is molded of polypropylene.

According to the fourth aspect of the present invention, by forming the picking body from polypropylene, a picking body that is safe for beverages, has high strength, can be molded well, and is inexpensive is obtained. be able to.

According to a fifth aspect of the invention, in addition to the constitution of the fourth aspect of the invention, polypropylene is used as expanded polypropylene.

In the invention according to the fifth aspect, since the amount of synthetic resin used is reduced by forming the knob body with expanded polypropylene, the knob body can be made lighter and the material cost can be suppressed.

According to a sixth aspect of the present invention, there is provided the first aspect of the present invention.
In addition to the constitution of the invention described in 2, 3, 4 or 5, the knob portion is provided with a wood pattern.

According to the sixth aspect of the present invention, by adding a wood grain pattern to the knob portion, it is possible to add the high-class feeling of the wooden knob member to the knob body made of synthetic resin.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the cork stopper with a knob of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a cork stopper with a knob is a short column-shaped cork stopper 11 which is fitted and assembled in the mouth of a container to seal the container.
And the knob 1 that is assembled on top of this cork stopper 11.
And an adhesive 15 for immovably assembling the cork stopper 11 and the knob 1.

The center of the upper end of the cork stopper 11 is hollowed out into a cylindrical shape, and a hole 12 is formed in the upper end surface 13 thereof.

The picking body 1 is a picking portion at the time of the opening operation, and has a flattened picking portion 2 having a diameter larger than that of the cork stopper 11, and a hanging portion 2 hung at the center of the bottom surface 8 of the picking portion 2 and its lower portion. To
It is composed of a shaft portion 3 formed on a short cylindrical tube piece 4 in which a fixing ridge 6 is provided on the inner peripheral surface of the lower end.

As shown in FIG. 2, the knob portion 2 has lateral grooves 14 radially arranged on the bottom surface 8 at a center angle of 30 degrees.

The shaft portion 3 has its hanging length set to be somewhat shorter than the depth of the hole portion 12, and as shown in FIG. 2, vertical protrusions 5 are provided on its outer peripheral surface at intervals of a central angle of 45 degrees. However, the outer diameter dimension at the center position of each vertical ridge 5 is set to be slightly smaller than the hole diameter dimension of the hole portion 12, and as shown in FIG. Therefore, the split groove 7 is provided.

The shape of the knob portion 2, the direction of the fixing ridge 6, the spacing between the lateral groove 14, the vertical ridge 5, and the split groove 7 are not limited to those in the above embodiment, but may be of any suitable form. be able to.

Next, an example of a method of fixing the knob 1 and the cork stopper 11 will be described. First, a fixed amount of the adhesive 15 is injected into the hole 12, and while the adhesive 15 is soft, the shaft 3 is inserted into the hole 1.
As shown in FIG. 3, the tube piece 4 is dipped into the adhesive 15, and the adhesive 1 is applied to the lower side, the inner side, and the outer side thereof.
5a spreads, the adhesive 15 rises as the shaft 3 is further inserted, and the adhesive 15b spreads from the bottom to the top between the outer peripheral surface of the shaft 3 and the cork stopper 11, and finally The adhesive 15c overflowing from the hole 12 spreads between the bottom surface 8 and the cork stopper 11, so that the gap between the knob 1 and the cork stopper 11 is filled with the adhesive 15, and the adhesive 15 is solidified. Keep up to.

The synthetic resin material used for the knob 1 is preferably safe for beverages, has high strength, is excellent in moldability, and is inexpensive, and polypropylene is suitable as such a material. Polypropylene may be expanded polypropylene to reduce the amount of material consumed.

It should be noted that the mold surface on which the knob portion 2 of the molding die is molded is provided with fine irregularities for forming a wood grain pattern, and the knob portion 2 is formed.
If a wood pattern is attached to the surface of the wood, it is possible to add the high-class feeling of the wood picking member to the synthetic resin picking portion 2, and the fine irregularities that form this wood pattern effectively function as slip prevention. .

The material used for the adhesive 15 is safe for beverages, has a strong adhesive force with the cork stopper 11, and has fluidity so that it can be spread over a narrow gap between the knob 1 and the cork stopper 11. In addition, it does not shrink when solidified after filling.

Based on the above-mentioned embodiment, a knob 1 made of expanded polypropylene and a cork stopper 11 were prototyped, and the knob 1 and the cork stopper 11 were assembled with polypropylene hot melt as an adhesive 15. Picked body 1
That the immovable assembly between the cork stopper 11 and the cork stopper 11 has been firmly achieved, and the longitudinal section was observed by cutting this prototype, and the adhesive 1
It was confirmed that 5 was densely packed.

[0035]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the invention, in addition to the adhesive action between the shaft portion of the knob and the adhesive, the vertical protrusion protruding from the outer peripheral surface of the shaft portion and the tubular piece that is the tip portion of the shaft portion. Since the fixing ridges projectingly provided at the lower end of each of the ridges are firmly engaged with the solidified adhesive in the circumferential direction and the axial direction, respectively, since the adhesive assembly between the cork stopper and the adhesive is strong, The knob body and the cork stopper can be stably and immovably assembled without idling or separation, and thus the handleable cork stopper can be obtained at low cost.

According to the second aspect of the present invention, in addition to the immovable assembly between the shaft portion of the knob and the cork stopper with the adhesive, the adhesive between the knob portion and the cork stopper is also fixed with the adhesive. Since it is attached, the rotational force applied to the knob can be directly transmitted to the outer peripheral surface of the cork stopper, and the operability of opening the cap can be improved.

According to the third aspect of the present invention, since the side surface of the tubular piece forming the split groove engages with the solidified adhesive in the circumferential direction, the knob body and the cork stopper are more reliably prevented from idling. In addition, since air escapes from the split groove when filling the inside of the cylinder piece with the adhesive, it becomes easy to firmly fill the inside of the cylinder piece with the adhesive, and the adhesion between the shaft portion and the cork plug and the axial engagement. The result is good.

According to the invention of claim 4, by forming the picking body from polypropylene, a picking body that is safe for beverages, has high strength, is well formed, and is inexpensive can be obtained. be able to.

According to the fifth aspect of the present invention, since the amount of synthetic resin used is reduced by forming the knob body from expanded polypropylene, the knob body can be made lighter and the material cost can be suppressed.

According to the sixth aspect of the present invention, by adding a wood grain pattern to the picking portion, it is possible to increase the commercial value by adding the high-class feeling of the wooden picking member to the picking body made of synthetic resin. it can.

[Brief description of drawings]

FIG. 1 is a front view of a vertical section of a right half, showing a state in which a knob and a cork stopper are assembled according to an embodiment of the present invention.

FIG. 2 is a bottom view of the embodiment shown in FIG. 1 in which a part of a knob is enlarged.

FIG. 3 is a vertical cross-sectional view showing a state where the cork stopper and the knob are fixed in the embodiment shown in FIG. 1 in a partially enlarged manner.

[Explanation of symbols]

1; Picked body 2; Picking part 3; Shaft 4; Tube piece 5; Vertical ridge 6; Fixing ridges 7; Split groove 8; bottom 11; Cork stopper 12; hole 13; Top surface 14; Horizontal groove 15; Adhesive 15a; adhesive 15b; adhesive 15c; adhesive

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E084 AA12 BA01 CA01 CC05 DA01                       DC05 EA02 EC07 FA09 GA08                       GB12 HB01 HC05 HD04

Claims (6)

[Claims] 1. A cork stopper (11) having a hole (12) formed in the center of an upper end surface (13) thereof, and a knob (2) which serves as a knob when the cap is opened.
And, the bottom portion (8) of the knob portion (2) is provided so as to hang down in the center, and a plurality of vertical protrusions (5) are provided on the outer peripheral surface thereof at intervals along the circumferential direction, and the lower portion thereof is A knob made of synthetic resin consisting of a shaft part (3) which is formed on a cylindrical tube piece (4) projectingly provided with a fixing ridge (6) at the lower end and is inserted into the hole part (12). The body (1), the adhesive (15) to be filled in the gap between the shaft portion (3) and the cork stopper (11)
Corkscrew with knob fixedly attached by. 2. A plurality of radial lateral grooves (14) are arranged on the bottom surface (8) at intervals along the circumferential direction, and the bottom surface (8) and the upper end surface (13) are bonded with an adhesive (15). ) Fixedly mounted by
Cork stopper with knob as described. 3. The cork stopper with knob according to claim 1, wherein a plurality of split grooves (7) are formed in the tubular piece (4) at intervals along the circumferential direction. 4. The cork stopper with a knob according to claim 1, 2 or 3, wherein the knob (1) is molded from polypropylene. 5. The cork stopper with knob according to claim 4, wherein the polypropylene resin is foamed polypropylene. 6. The cork stopper with knob according to claim 1, 2, 3, 4 or 5, wherein the knob (2) has a wood pattern.