JPH11105910A - Container cap device - Google Patents

Abstract

(57) [Problem] To provide a container cap device capable of reliably preventing pseudo adhesion from occurring in a valve body slit. SOLUTION: The cap device 3 is made of a flexible resin wall such as a silicone resin having a slit 4 formed in a concave portion 5b inside a zenith portion 5a, and the valve is opened and closed in response to the pressure in the container 1. The body 5 and the zenith 5a of the valve body 5 are held in a state of being exposed to the outside through the opening 6 and the container 1
Body 7 fixed to the mouth 2 of the
And an overcap 8 for detachably covering the cap body 7. On the side of the overcap 8 covering the cap body 7, the valve body 5 is independent or continuous with the slit 4 in a plan view shape position and presses only the slit 4. The protrusion 9 is formed so that the protrusion 9 is inserted into the slit 4 and the slit 4 is opened when the opening 6 is covered with the overcap 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap device provided at a mouth portion of a container for storing liquid products such as kitchen detergent, shampoo, rinse, liquid detergent, and toothpaste.

[0002]

2. Description of the Related Art Conventionally, a user purchases a liquid product such as a kitchen detergent in a container. Then, the user opens the cap at the upper end of the container when using the liquid product, and then squeezes the container with the container opening facing downward, thereby causing the liquid product to be poured into the place of use. This cap is usually of the type that opens and closes the liquid passage of the cap body provided at the mouth of the container.However, it is not easy to run out of the liquid, or the liquid is simply turned upside down and the container mouth is turned downward. It was difficult to use, as the product leaked out or the liquid came out when it was carelessly knocked down.

In view of the above, a valve body made of a flexible silicone rubber wall having a slit and provided to open and close in response to the pressure in the container is provided on the cap body, and the slit of the valve body has a certain pressure. Was designed so that it would not open unless it was added, so that the liquid product would not leak when the container was inverted.

[0004]

However, there are the following problems in order to store a liquid product in a container using the above-mentioned valve body and make it into a commercial product. In other words, after the silicone rubber is molded into the valve body, the top is cut open with a cutter or the like and mounted on the container. However, a phenomenon (pseudo-adhesion) may occur in which the cut slit is reattached over time. When this pseudo-adhesion occurs, the slit cannot be partially or completely opened, so that there is a problem that the liquid product cannot be sufficiently poured out when used.

An object of the present invention is to provide a cap device for a container which can reliably prevent pseudo adhesion from occurring in a valve body slit.

[0006]

The present invention has the following configuration to achieve the above object. The invention of claim 1 is
A cap device provided at a mouth portion of a container for accommodating a liquid product, wherein the valve member is made of a flexible resin wall having a slit formed in a part thereof, and the slit opens and closes in response to pressure in the container; A cap body fixed to the mouth of the container while holding the slit forming part of the body exposed from the opening to the outside (including a state in which the slit forming part is exposed), and an overcap for detachably covering the opening. On the side of the overcap that covers the cap body, a projection is provided upright so as to be independent or continuous substantially at the position of the valve body in the plan view of the slit and to press only the slit. A container cap device wherein the projection is inserted into the slit to open the slit when the opening is covered by a cap. The invention according to claim 2 has a structure in which the overcap and the cap body are aligned with each other when the opening portion of the cap body is covered with the overcap. apparatus. The invention of claim 3 is
3. The container cap device according to claim 2, wherein the alignment structure is such that a hinge mechanism is interposed between the overcap and the cap body. According to a fourth aspect of the present invention, in the container according to the second aspect, the positioning structure is such that a fitting portion between the overcap and the cap body has a non-circular shape such as a polygon or an ellipse. It is a cap device for use.

According to the first aspect of the present invention, on the side of the overcap that covers the cap body, a projection is formed upright along a cross section substantially the same as the planar shape of the slit of the valve body. When the opening is covered, the protrusion is inserted into the slit and the slit is opened, so if the slit is left covered with the overcap, the slit will be pseudo-adhered even after a lapse of time after the slit is formed. Nothing.

By the way, the inventor has found that in order to prevent the pseudo-adhesion by inserting the protrusion into the slit, it is necessary to insert the protrusion into the slit while maintaining a positional relationship corresponding to each other. That is, if the position cannot be determined, the projection simply presses the valve body surface, and the slit is not always opened sufficiently. Therefore, the inventions of claims 2 to 4 have been made. According to these inventions, if the cap body is covered with an overcap,
The protrusion is automatically inserted into the slit in an appropriate state, so that the prevention of false adhesion can be more reliably performed.

[0009] In addition, various structures for positioning can be considered, but if a hinge mechanism is interposed between the overcap and the cap body as in claim 3,
The overcap is connected to the cap body, and in addition to the effects of claim 2, it is possible to prevent problems such as elimination of the overcap, and to easily fit the overcap into the cap body with one touch. This is extremely convenient. According to a fourth aspect of the present invention, the structure for positioning is such that the fitting portion between the overcap and the cap body has a non-circular shape such as a polygon or an ellipse. In addition to the effects, since the positioning can be reliably performed only by the shapes of the overcap and the cap body without any other mechanism, the structure of the cap device is not complicated and the manufacturing cost can be reduced.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 4 are explanatory views of a cap device 3 provided on a mouth portion 2 of a container 1 for accommodating a liquid product according to the embodiment.

The cap device 3 is made of a flexible resin wall made of a silicone resin or the like having a slit 4 formed in a central recess 5b at the center of a zenith 5a, and is a valve body that opens and closes in response to the pressure in the container 1. 5, a cap body 7 that holds the zenith 5a of the valve body 5 exposed to the outside from the opening 6 and is fixed to the mouth 2 of the container 1, and removably covers the opening 6. And an overcap 8. On the bottom surface 8a of the overcap 8 on the side covering the cap body 7, a protrusion 9 is erected so as to be independent or continuous substantially at the position of the slit 4 in plan view of the valve body 5 and to press only the slit 4. The projection 9 is formed such that when the opening 6 is covered with the overcap 8, the projection 9 is inserted into the slit 4 to open the slit 4.

That is, as shown in FIG. 4, the valve element 5 has a generally bowl-like shape with its entire surface lying down, and a zenith part 5a has a + -shaped slit near the center of a concave part 5b which is concave in the center. 4 is cut. And the side wall part 5c which goes downward from the zenith part 5a presents the expanded substantially taper shape. A flange 5e is formed annularly around the bottom 5d of the valve element 5. A recess 5f is formed on the bottom side of the flange 5e.

The container 1 has a generally cylindrical mouth portion 2 having an upper portion tapered in a stepped manner from a shoulder portion, and a thread 2a of a male screw is formed on an outer peripheral surface portion of the mouth portion 2. As shown in FIG. 2, the cap body 7 has a large diameter portion 7a, a medium diameter portion 7b,
Large-diameter portion 7a becomes small diameter portion 7c is threaded 7a ₁ of the inner circumference of the female screw is formed. By screwing the threads 2a and 7a ₁ together covered the large-diameter portion 7a in the mouth portion 2,
The cap body 7 is fixed to the mouth part 2. Inside the large-diameter portion 7a, a wall portion 10 hanging down like a wall toward the inner periphery of the container mouth portion 2 and sandwiching the mouth portion 2 together with the large-diameter portion 7a is integrally formed. The flange portion 5e of the valve body 5 abuts the stepped inner peripheral portion of the middle diameter portion 7b and the small diameter portion 7c, and is pressed and fixed from below by a ring-shaped stopper 11. The protrusion 12 on the upper surface of the stopper 11 fits into the recess 5 f of the valve element 5 to prevent the valve element 5 from falling off. The stopper 11 is fitted and fixed inside the middle diameter portion 7b by a projection 13 on the inner peripheral wall of the middle diameter portion 7b. The inner peripheral portion of the small diameter portion 7c is formed to have a gap between the inner peripheral portion of the small diameter portion 7c and the outer peripheral portion of the upper portion of the valve element 5 so as to ensure the operation of the valve element 5.

The overcap 8 has a general mushroom shape in which an umbrella-shaped flange 8b is formed at the upper part of the outer periphery so that the user can easily hold it. Then, as shown in detail in FIG. 3, from the bottom surface 8a of the overcap 8,
A "+"-shaped projection 9 having substantially the same cross section as the "+"-shaped slit 4 in a plan view is erected downward in the shape of a flat plate wall. The size of the protrusion 9 in the lateral direction is formed smaller than the slit 4, and prevents the valve body 5 from extending the tear from the slit 4. Further, it is preferable that the thickness of the protruding portion 5 is also set within a range that can prevent the tear from extending from the slit 4.

The inner and outer ribs 8 for fitting to the tip of the mouth 2 are provided around the protrusion 9 on the bottom.
c and 8d are formed in a tubular shape. Locking projections 14 and 15 corresponding to each other are formed on the inner periphery of the outer rib 8c and the outer periphery of the small-diameter portion 7c of the cap body. Like that.

Here, when the overcap 8 covers the opening 6 of the cap body 7, the overcap 8 and the cap body 7 are aligned with each other. Various structures can be employed for this structure. For example, FIG.
As shown in (a), the alignment structure can be such that a hinge mechanism 20 is interposed between the overcap 8 and the cap body 7. Also, for example, FIG.
As shown in (c), in the alignment structure, the fitting portion such as the opening 6 between the overcap 8 and the cap body 7 has a non-circular shape such as a polygon such as a square, a triangle, or an ellipse. Can be In FIG. 5, the same parts as those in the embodiment of FIGS.

According to the cap device 3 of the embodiment, when the overcap 8 is fitted over the opening 6 of the cap body 7, the projection 9 of the overcap 8 is moved to the position shown in FIG. 2 or FIG. Thus, the protrusion 9 is inserted into the slit 4 and the slit 4 is opened. Therefore,
If the cap body 7 is kept covered with the overcap 8, the slit 4 will not be closed even after the formation of the slit 4 with time, and the pseudo-adhesion will not occur. In addition, as shown in FIG. 5, the protrusions 9 having various alignment structures can be inserted into the slits 4 while maintaining a positional relationship corresponding to each other.

The above embodiment merely shows one embodiment of the present invention, and various modifications can be made within the scope of the present invention. For example, the protrusion 9 of the valve body is not limited to being formed continuously in a plate shape as shown in FIG. 3. If the slit 4 can be opened, the protrusion is partially (tip) as shown in FIG. Portion or a comb shape). Further, when the slit has a shape other than the + shape, the protrusion can be formed in a cross section corresponding to the shape. In FIG. 6, the same parts as those in the embodiment of FIGS. 1 to 4 are denoted by the same reference numerals.

[0019]

As described above, according to the first aspect of the present invention, it is possible to reliably prevent the pseudo-adhesion from being generated in the slit of the valve body, and to prevent the liquid from flowing out even if it is accidentally knocked down. The liquid can be poured accurately to the target because it is prevented from leaking and leakage does not occur just by inverting the liquid. According to the second aspect of the present invention, when the cap body is covered with the overcap, the protrusion is automatically inserted into the slit in an appropriate state, and the prevention of pseudo-adhesion can be more reliably performed. According to the third aspect of the invention, in addition to the functions and effects of the second aspect, problems such as elimination of an overcap can be prevented, and
It is extremely convenient, for example, the overcap can be easily fitted to the cap body with one touch. According to claim 4, in addition to the function and effect of claim 2,
Since the positioning can be reliably performed only by the shapes of the overcap and the cap main body without requiring any other mechanism, the structure of the cap device is not complicated and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a container use state of a container cap device according to an embodiment of the present invention.

FIG. 2 is a half sectional view of a main part of the cap device.

FIG. 3 is an explanatory view of a lower portion of an overcap.

FIG. 4 is a detailed explanatory view of a valve body, (a) is a plan view,
(B) is a side view including a half section.

5 (a) to 5 (c) are explanatory views of the alignment structure of the container cap device according to the embodiment of the present invention.

FIG. 6 is an explanatory view of a modified example of a projection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Mouth 3 Cap device 4 Slit 5 Valve 8 Overcap 9 Projection

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yohei Saito 1-3-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation (72) Inventor Teru Matsumoto 1-3-7, Honjo, Sumida-ku, Tokyo Lion Corporation

Claims (4)

[Claims] 1. A cap device provided at a mouth portion of a container for accommodating a liquid product, wherein the valve is made of a flexible resin wall partially formed with a slit, and the slit is opened and closed according to the pressure in the container. A valve body, a cap body that holds the slit forming portion of the valve body exposed from the opening and is fixed to the mouth of the container, and an overcap that removably covers the opening. On the side of the overcap that covers the cap body, a projection is provided upright so as to be independent or continuous substantially at the position of the slit in plan view of the valve body and press only the slit, and the projection is opened by the overcap. A container cap device wherein the projection is inserted into the slit when the portion is covered to open the slit. 2. The container cap device according to claim 1, further comprising a structure for positioning the overcap and the cap body when covering the opening of the cap body with the overcap. 3. The container cap device according to claim 2, wherein the alignment structure is such that a hinge mechanism is interposed between the overcap and the cap body. 4. The container cap according to claim 2, wherein the fitting portion between the overcap and the cap body has a non-circular shape such as a polygon or an ellipse. apparatus.