JPH0535704U - Pouring cap - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A pouring cap that is attached to the mouth of a container and consists of a main body and a lid that has a self-opening and closing function.
Provided is a pouring cap in which the main body and the lid are integrally formed of synthetic resin materials of different colors. [Structure] The main body 1 and the lid 2 are connected by an elastic band 3 and hinges 4 provided on both sides of the elastic band 3. Elastic band 3
A confluence point 3b between the synthetic resin material on the main body 1 side and the synthetic resin material on the lid body 2 side is provided at a predetermined position. The hinge 4 is formed of a synthetic resin material on the main body 1 side or the lid 2 side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pouring cap in which a main body and a lid having a self-opening / closing function are integrally molded of synthetic resin materials having different colors.

[0002]

[Prior Art]

 A pouring key consisting of a main body attached to the mouth of the container and having a spout in the center of the upper plate, and a lid body having a plug for closing the spout and rotatable with respect to the main body. Caps are used. Among them, there is a pouring cap in which the main body and the lid are molded in different colors. For example, the technique disclosed in Japanese Utility Model Laid-Open No. 62-65943 relates to a spout cap in which a main body and a lid are joined by a hinge, and a synthetic resin material of a different color is integrally formed with the hinge as a boundary. is there. This spout cap is formed by integrally molding the main body and lid with synthetic resin materials of different colors, but the lid simply rotates around a hinge and has a so-called self-opening / closing function. is not.

On the other hand, in the technology disclosed in Japanese Utility Model Laid-Open Nos. 62-115368 and 62-161656, the main body and the lid are formed as different members, and the lid is inserted into the main body and engaged. It is related to the pouring cap configured as described above. In the pouring cap, the lid has a self-opening / closing function, and the main body and the lid can be molded in different colors.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional technique is not completely free from problems. That is, in the former technique, since the lid is simply connected to the main body by the hinge, it is necessary for the user to hold the lid in the open position while pouring out the contents filled in the container. Become. Therefore, there is a problem that the user feels complicated. Further, since the synthetic resin material for molding the lid and the synthetic resin material for molding the main body are joined at the hinge as a boundary, there is a problem that the hinge may be broken by opening and closing a large number of times. Further, in order to join the main body and the lid with the hinge as a boundary, it is necessary to strictly control the conditions such as the mold temperature, the material temperature, and the ejection speed, and a slight error occurs in these conditions. If twisted, there is a problem that molding at the hinge becomes impossible.

In the latter technique, since the main body and the lid are molded as different members, a molding die corresponding to each member is required. In addition, since the main body and the lid each require an insertion engaging portion, the structure of the molding die becomes complicated. Therefore, the manufacturing cost of the mold is increased, and the molding cost, the assembly cost, etc. are also increased.

An object of the present invention is to provide a pouring cap in which a main body and a lid having a self-opening / closing function are integrally molded by using synthetic resin materials of different colors.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a pouring cap according to the present invention comprises a main body that is attached to the mouth of a container and a lid that covers the upper portion of the main body. And a spout cap configured by connecting hinges provided on both sides of the elastic band, the main body and the lid are molded of synthetic resin materials of different colors, and the elastic band is formed at a predetermined position. The main body and the lid are integrally formed by merging synthetic resin materials of different colors and molding the hinge with a synthetic resin material of one of the colors.

[0008]

[Action]

 According to the above-mentioned pouring cap, by connecting the main body and the lid with the elastic band and the hinge, the elastic band and the hinge have a self-opening / closing function, and the main body and the lid are combined in different colors. By molding with a resin material, merging these synthetic resin materials at a predetermined position of the elastic band to integrate them, and molding the hinge with a synthetic resin material of either color, the main body and the lid are separated. Can be integrated.

[0009]

【Example】

 An embodiment of the above-mentioned pouring cap will be described below with reference to the drawings. 1 is a perspective view of the spout cap in an open state, FIG. 2 is a perspective view of the spout cap in a closed state, FIG. 3 is a cross-sectional view of the spout cap, and FIG. 4 is a cross-sectional view illustrating a molded state of the spout cap. It is a figure. In the figure, the spout cap A has a main body 1 and a lid body 2 formed in different colors, and the main body 1 and the lid body 2 are provided with an elastic band 3 and both sides of the elastic band 3. It is integrally molded by connecting with the hinge 4.

The main body 1 is composed of a cylindrical skirt 1a having a shape corresponding to the shape of the mouth of a container (not shown), and a top plate 1b formed on the top of the skirt 1a. A pouring outlet 5 for pouring out the contents stored in the container is formed in the center of the top plate 1b. The lid 2 is formed to have a shape substantially similar to the top plate 1b of the main body 1, and a stopper 6 is provided at a position facing the spout 5. The lid 2 is made of a synthetic resin material having a color different from that of the main body 1.

The main body 1 and the lid 2 are integrally connected by an elastic band 3 and hinges 4 provided on both sides of the elastic band 3. The elastic band 3 is formed in an L-shape having a spring property by a part of the hakama portion 1a of the main body 1 and a part of the lid body 2, and is formed in a connecting portion with the main body 1 and a connecting portion with the lid body 2. Each of the hinge portions 3a is formed. A confluence point 3b of the synthetic resin material for molding the main body 1 and the synthetic resin material for molding the lid body 2 is set at substantially the center of the elastic band 3, and the synthetic resin materials of different colors are welded at the confluence point 3b. .. Therefore, the hinge portion 3a of the elastic band 3 is formed of the synthetic resin material for molding the main body 1 and the synthetic resin material for molding the lid body 2, respectively, and has sufficient strength against repeated bending many times. is doing.

Hinge 4 is provided on each side of elastic band 3. The hinge 4 is made of either a synthetic resin material for molding the main body 1 or a synthetic resin material for molding the lid 2. As described above, the hinge 4 is formed of one kind of synthetic resin material, and thus has sufficient strength against repeated bending many times. In this embodiment, the hinge 4 is formed at the same time when the lid 2 is formed. That is, the hinge 4 is formed of the synthetic resin material that forms the lid 2.

In the above-mentioned pouring cap A, when the user opens the lid body 2, the lid body 2 can be easily operated by the interaction between the elasticity of the elastic band 3 and the elasticity of the hinge 4. Keep it open and maintain an open position. When the user closes the lid body 2, the lid body 2 is easily closed by the elastic property of the elastic band 3 and the hinge 4, and the closed posture is maintained. That is, the lid body 2 has a self-opening / closing function.

Next, a molding procedure for manufacturing the pouring cap A will be described with reference to FIG. In the figure, the mold is provided with cavities 11 and 12 corresponding to the main body 1 and the lid 2 for injecting synthetic resin materials of different colors, and the cavities 11 and 12 are provided in the respective cavities 11 and 12. Sprues 13 and 14 are provided. Further, an operating pin 15 for defining the confluence 3b is arranged in the molded portion of the elastic band 3. When molding the pouring cap A, the main body 1 and the lid 2 are not molded at the same time but sequentially with a time lag. The order of forming the main body 1 and the lid body 2 is not particularly limited. However, it is necessary to strictly inject the synthetic resin material to be molded first.

In this embodiment, the main body 1 and the lid body 2 are integrally formed by first molding the lid body 2 and then molding the main body 1. Hereinafter, description will be made based on this embodiment. First, as shown in FIG. 3A, the operating pin 13 is moved in the direction of arrow a to close the confluence point 3b of the elastic band 3, and the preset color is synthesized in the cavity 12 corresponding to the lid 2. A fixed amount of resin material is injected. That is, the volume in the lid 2, the sprue 14, the gate, etc. and the volume to be filled from the hinge 4 to the main body 1 side are added, and a synthetic resin material corresponding to this volume is quantitatively injected. As a result, the synthetic resin material injected into the cavity 12 flows into the cavity 11 through the portion corresponding to the hinge 4 of the mold. The synthetic resin material that has flowed into the cavity 11 maintains a free state without being particularly restricted.

As described above, it is difficult to strictly inject the synthetic resin material in a fixed amount. For this reason, it is preferable that the elastic band 3 is provided with a reservoir 3c as shown in FIG. 3, and the reservoir 3c can absorb an error in the injection amount.

After the synthetic resin material is quantitatively injected into the cavity 12, the operating pin 15 is moved in the direction of the arrow b to open the confluence point 3b of the elastic band 3. As a result, the synthetic resin material injected into the elastic band 3 is released from the regulation by the actuating pin 15 and becomes free. Next, a synthetic resin material of a preset color is injected into the cavity 11 corresponding to the main body 1. The injected synthetic resin material flows through the cavity 11 to the vicinity of the hinge 4 of the molding die and the portion corresponding to the elastic band 3, and the synthetic resin material which has already been injected to these portions is molded. Weld with resin material. As described above, it is possible to integrally form the main body 1 and the lid body 2 with synthetic resin materials of different colors.

[0018]

[Effect of the device]

 As described above in detail, according to the pouring cap of the present invention, the main body and the lid are made of synthetic resin materials of different colors, and the main body and the lid are connected by the elastic band and the hinge. Since it is integrally molded with the lid, the lid has a self-opening / closing function and does not force the user to perform a complicated operation. Further, the main body and the lid can be molded by one molding die, the manufacturing cost of the molding die and the molding cost can be reduced, and it is not necessary to assemble different members like the conventional pouring cap. Therefore, it has a feature that the assembly cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a pouring cap in an open state.

FIG. 2 is a perspective view of a pouring cap in a closed state.

FIG. 3 is a sectional view of a pouring cap.

FIG. 4 is a cross-sectional view illustrating a molding state of a pouring cap.

[Explanation of symbols]

A is a spout cap, 1 is a main body, 1a is a hakama part, 1b is a top plate, 2 is a lid, 3 is an elastic band, 3a is a hinge part, 3b is a confluence point, 3c is a reservoir part, 4 is a hinge, 5 Is a spout, 6 is a stopper,
11 and 12 are cavities, 13 and 14 are sprues, and 15 is an operating pin.

Claims (1)

[Scope of utility model registration request] 1. A main body attached to the mouth of a container and a lid for covering the upper portion of the main body, wherein the main body and the lid are connected by an elastic band and hinges provided on both sides of the elastic band. In the pouring cap configured as described above, the main body and the lid body are molded of synthetic resin materials of different colors, respectively, and the synthetic resin materials of different colors are joined at a predetermined position of the elastic band, and the hinge A pouring cap in which the main body and the lid are integrally formed by molding with a synthetic resin material of one color.