JP2006008137A - Cap structure for beverage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To extremely easily clean a pouring hole and to obtain a pleasant feeling when a lip comes into contact with the pouring hole in a beverage container such as a PET bottle performing "drinking straightly from the bottle". <P>SOLUTION: A female screw 11 is engraved on the inner peripheral face of an approximately cylindrical spout 10 projected from a beverage container main body. In addition, a cap 20 is formed with a cylindrical outer shell part 22 whose one end is closed, and a projecting part 21 projecting from the center of the closed part of this shell part 22 toward the other end direction of the shell part 22, and on the outer peripheral face of which a male screw 24 to be screwed to the female screw 11 is formed. Here, when the male screw 24 of the projecting part 21 is screwed to the female screw 11 of the spout 10, the outer shell part 22 covers the outer peripheral face of the spout 10. As the outer peripheral face of the spout 10 is smoothly formed thereby, even when saliva or the like sticks the outer peripheral face, it can be extremely easily wiped off by using a cloth or the like. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cap structure for a beverage container suitable for use in a plastic bottle, a water bottle or the like.

Usually, in beverage containers such as PET bottles and water bottles, a substantially cylindrical spout protrudes from the main body, and a male screw is threaded on the outer periphery of the spout. In addition, a cylindrical cap with one end closed is attached to these beverage containers, and a female screw that engages with the male screw of the spout is threaded on the inner peripheral surface of the cap. And a pouring spout can be opened and closed by making a cap contact | abut to a pouring spout and rotating it to right and left.
In addition, in the wide-mouthed bottle disclosed in Patent Document 1, it is also known that a small-diameter cylindrical spout is formed in the inner stopper and a female screw is threaded on the inner peripheral surface of the spout. Yes. In such a wide-mouthed bottle, a stopper that opens and closes the spout is formed in a cylindrical shape that is inserted into the spout, and a male screw that is screwed into the spout is threaded on the outer periphery of the stopper.

Japanese Utility Model Publication No. 1-96858

By the way, when jogging or exercising, it is desirable to carry a beverage container such as a plastic bottle or a water bottle filled with a beverage, and take the beverage appropriately. At that time, the drink may be poured from a beverage container into a cup or the like, but such work is complicated, and so-called “trumpet drinking” is performed by bringing the user's mouth into direct contact with the spout of the beverage container Is done. Drinking trumpet is undesirable in terms of hygiene because the saliva adheres to the outer periphery of the spout and germs grow. Therefore, it is only necessary to clean the outer periphery of the spout. However, in a general beverage container, since a male screw is screwed on the outer periphery of the spout, there is a problem that cleaning is complicated. Further, when a male screw is engraved on the outer periphery of the spout, the male screw hits the lips, which is not preferable in terms of touch.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a cap structure for a beverage container that can be easily cleaned and that can provide a comfortable feel when the spout is applied to the lips. Yes.

In order to solve the above problems, the present invention is characterized by having the following configuration. The parentheses are examples.
In the cap structure for a beverage container according to claim 1, a substantially cylindrical spout (10) projecting from the beverage container main body and threaded with an internal thread (11) on its inner peripheral surface, and one end thereof A closed cylindrical outer shell portion (22) and a center of the closed portion of the outer shell portion (22) project toward the other end direction of the outer shell portion (22), and the female surface is projected on the outer peripheral surface thereof. A cap (20) comprising a protruding portion (21) formed with a male screw (24) screwed with the screw (11), and the outer shell portion (22) is connected to the protruding portion (21). When the male screw (24) is screwed into the female screw (11) of the spout (10), it is formed so as to cover the outer peripheral surface of the spout (10).
Furthermore, in the structure of Claim 2, the cap structure of the drink container of Claim 1 WHEREIN: The length of the axial direction of the said outer shell part (22) is set to the axial direction of the said protrusion part (21). It is characterized by having a length longer than that.

  Thus, according to the present invention, the cap can be fixed to the spout by forming a female screw on the inner peripheral surface of the spout and screwing the protruding portion of the cap here. Can eliminate the need for a screwing structure, and can smooth the outer peripheral surface of the spout. Thereby, the outer peripheral surface of the spout can be easily cleaned, and a comfortable feel can be obtained when the spout is applied to the lips.

Next, a PET bottle cap structure according to an embodiment of the present invention will be described with reference to FIG.
In the figure, reference numeral 30 denotes a plastic bottle body, and a resin spout 10 formed in a substantially cylindrical shape is fixed to an upper end portion thereof. A female screw 11 is threaded on the inner peripheral surface of the spout 10. Moreover, the outer peripheral surface 12 of the spout 10 is smooth, and the front-end | tip part 12a is notched so that a radius may become small gradually toward the end part of the spout 10.

  Reference numeral 20 denotes a cap, which protrudes from the center of the closed end 22b toward the other end (open end 22a) of the outer shell 22 with one end (closed end 22b) closed. It is comprised from the substantially cylindrical protrusion part 21. FIG. A male screw 24 that is screwed into the female screw 11 formed on the spout 10 is threaded on the outer peripheral surface of the protruding portion 21. Further, the inner peripheral surface of the outer shell portion 22 is formed in a shape that covers the outer peripheral surface of the spout 10 with a slight gap therebetween. Here, the axial length of the outer shell portion 22 is formed to be longer than the axial length of the protruding portion 21. Thereby, the protruding end 21a of the protruding portion 21 is located on the same plane as the open end 22a of the outer shell portion 22 or on the inner side of the open end 22a.

  In the above configuration, when the protruding portion 21 of the cap 20 is inserted into the inner peripheral surface of the spout 10 and the cap 20 is rotated to the right, the protruding portion 21 is screwed into the spout 10 and as shown in FIG. The spout 10 is closed. Moreover, if the cap 20 is rotated leftward in this state, the protrusion part 21 will remove | deviate from the spout 10, and the spout 10 will be in an open state. Thus, according to the present embodiment, the cap 20 is attached to the spout 10 using the female screw 11 formed on the inner peripheral surface of the spout 10, and therefore the cap 20 is attached to the outer peripheral surface of the spout 10. This eliminates the need for a mechanism to do so, and makes it possible to form the outer peripheral surface of the spout 10 very smoothly. Therefore, even when saliva or the like adheres to the spout 10, the saliva or the like can be wiped off very easily using a cloth or the like, and the spout 10 can be kept clean. Furthermore, such a feature can provide a comfortable feel when the user places the lip on the spout 10.

  Furthermore, according to the present embodiment, when the cap 20 is attached to the spout 10, the outer shell portion 22 of the cap 20 covers the spout 10, so that dust or the like can be prevented from adhering to the spout 10. . Note that the above-mentioned Patent Document 1 does not have such a function at all. Furthermore, according to the present embodiment, since the axial length of the outer shell portion 22 is formed to be longer than the axial length of the protruding portion 21, it is opened when the cap 20 is removed from the spout 10. When the cap 20 is placed on a plane with the end 22a side down, the open end 22a contacts the plane over the entire circumference. Thereby, the cap 20 can be kept in a stable mounting state.

  In addition, this invention is not limited to the Example mentioned above, A various deformation | transformation is possible. For example, the present invention is not limited to PET bottles, and can be applied to various beverage containers such as water bottles, glass bottles, and beverage cans.

It is sectional drawing of the cap structure of the PET bottle of one Example of this invention.

Explanation of symbols

  10: spout, 11: female screw, 12a: tip, 20: cap, 21: protruding portion, 21a: protruding end, 22: outer shell, 22a: open end, 22b: closed end, 24: male screw, 30: PET bottle body.

Claims (2)

A substantially cylindrical spout protruding from the beverage container body and threaded with an internal thread on its inner peripheral surface;
A cylindrical outer shell portion with one end closed, and a male screw protruding from the center of the closed portion of the outer shell portion toward the other end of the outer shell portion and screwed into the outer peripheral surface thereof with the female screw A cap formed of a projecting portion formed so as to cover the outer peripheral surface of the spout when the male screw of the projecting portion is screwed into the female screw of the spout. A cap structure for a beverage container, wherein   2. The cap structure for a beverage container according to claim 1, wherein the axial length of the outer shell portion is equal to or greater than the axial length of the protruding portion.

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