JP2007091281A - Hinge cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge cap which operates a valve cylinder provided close to a lower end of a side peripheral wall of a cap body or an upper lid according to the pressure change in the upper lid, prevents the upper lid from being raised or opened caused by the increase of the internal pressure, and prevents suction of water drops from occurring when cooling and cleaning the cap. <P>SOLUTION: The hinge cap comprises the cap body, a lid and a hinge. The cap body is equipped with comprises an inner cylinder and an outer cylinder, an engaging cylinder to be fitted to a container mouth cylindrical part consisting of an upper wall, and a spouting cylinder. A fitting cylinder and a valve cylinder having a valve part on its tip are erected on an upper face of the upper wall of the engaging cylinder. The lid body has a top wall and a side peripheral wall. A stepped part having a peripheral surface with an engagement part joined with an outer peripheral surface of the fitting cylinder, and a valve seat cylinder are provided on a lower end of the side peripheral wall. An air passage is formed between the outer peripheral surface of the fitting cylinder and the engaging part of the side peripheral wall. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hinge cap attached to a mouth portion of a housing.

A liquid that has been heated to 70 ° C to 90 ° C for sterilization of liquid food seasonings such as soup and sauce using a hinge cap, etc. Washing with a cooling shower to cool the casing or cool the housing has been conventionally performed.
At that time, the lid body may be lifted or detached due to heat expansion of the air in the lid body due to the high-temperature liquid filled during sterilization.
Further, when the casing is cooled by the cooling shower, there is a problem that the lid body is in a negative pressure state, and water droplets of the cooling shower are sucked into the lid body.

In order to solve these problems, a container in which a flow path is formed to discharge air in the upper lid when plugged and the flow path is closed during cooling has been conventionally known (for example, patents). References 1 and 2).
JP 2001-270541 A JP 2002-347822 A

  However, the cap described in Patent Document 1 has a flexible ring (40) formed at the lower end of the outer lid and is elastically engaged with an annular ridge (41) provided on the outer peripheral side of the main body. The air passage is opened and closed between the flexible ring (40) and the annular ridge (41) due to the pressure change, but the change can not always be followed to move the outer lid up and down due to the pressure change. Therefore, it was not possible to completely prevent the lid from being opened and the cooling water from being sucked.

  Further, the cap described in Patent Document 2 is provided with a large number of fin-like valves inclined downward on the outer peripheral surface of the cap body outer cylinder, and the fin-like valve is opened in response to a rise in pressure in the upper lid, resulting in a negative pressure. In some cases, the fin-shaped valve is closed. However, when the content liquid is poured out by opening the upper lid, there is a problem that the content liquid may adhere to the fin-shaped valve of the cap body outer cylinder.

  An object of the present invention is to solve the above-mentioned problem, and in response to a pressure change in the upper lid, a cap cylinder or a valve cylinder provided near the lower end of the side peripheral wall of the upper lid is operated to lift the upper lid due to an increase in internal pressure. An object of the present invention is to provide a hinge cap that prevents opening of the lid and prevents suction of water droplets during cooling and cleaning of the cap.

  In order to solve the above-described problems, the present invention provides a hinge cap including a cap body, a lid, and a hinge as a hinge cap. The cap body includes a container mouth tube portion including an inner tube, an outer tube, and an upper wall. An engaging cylinder and a dispensing cylinder, and an upper surface of the upper wall of the engaging cylinder is provided with a fitting cylinder and a valve cylinder having a tip as a valve portion. Has a top wall and a side peripheral wall, and a lower end of the side peripheral wall is provided with a stepped portion having a peripheral surface provided with an engaging portion to be joined to the outer peripheral surface of the fitting cylinder, and a valve seat cylinder. The structure characterized by the air path being formed between the outer peripheral surface of a joint cylinder and the engaging part of a side peripheral wall is employ | adopted.

  As another embodiment of the hinge cap, a hinge cap including a cap body, a lid, and a hinge, and the cap body is an engagement cylinder fitted into a container mouth cylinder portion including an inner cylinder, an outer cylinder, and an upper wall. A fitting cylinder and a valve seat cylinder are erected on the upper surface of the upper wall of the engagement cylinder, and the lid body includes a top wall and a side peripheral wall. The lower end of the peripheral wall is provided with a stepped portion having a peripheral surface provided with an engaging portion joined to the outer peripheral surface of the fitting cylinder, and a valve tube having a tip as a valve portion. The structure characterized by the air path being formed between the engaging parts of a surrounding wall is employ | adopted.

  As an example of the lid, a configuration is adopted in which a thin flexible portion that is displaced by pressure is provided on the top wall of the lid.

  A fitting part and a valve cylinder are erected on the upper surface of the engagement cylinder of the cap body, a valve seat cylinder is suspended from the lid body, and the air passage is opened and closed by a valve part that is displaced by pressure. In addition to preventing the lid from floating or coming off due to the heat expansion of the air in the lid due to heat filling for sterilization, it is possible to prevent the suction of water droplets due to the contraction of the air in the lid due to the cooling shower .

Next, the hinge cap of this invention is demonstrated with reference to drawings.
As shown in FIGS. 1-3, the hinge cap of this invention is comprised by the cap main body A, the cover body B, and the hinge C. As shown in FIG.

The cap body A includes an engagement tube 6 including an inner tube 3, an outer tube 4, and an upper wall 5 that are fitted to the fitting protrusion 2 of the casing tube 1, and an annular wall 7 on the inner tube 3. The bottom wall 9 is continuously provided at the lower end of the extraction cylinder 8.
The bottom wall 9 is provided with a cutting groove 11 for cutting the removal portion 10 that forms the spout, and a pull ring 12 is erected on the upper surface of the removal portion 10.

On the upper surface of the upper wall 5 of the engagement cylinder 6, a fitting cylinder 14 in which a concave groove 13 extending in the vertical direction is formed on the outer peripheral surface is erected. It is installed.
The base part of the valve cylinder 15 is a thick part, and the upper end is a thin valve part 16 having flexibility.

  At the lower end of the outer cylinder 4, a connecting piece 17 provided on the opposite side of the hinge C and an outer peripheral cylinder portion 19 connected via a fragile weakening piece 18 are connected.

The lid B is composed of a top wall 20 connected to the cap body A by a hinge C, and a side peripheral wall 21 suspended from the periphery thereof.
A central portion of the top wall 20 is a thin flexible portion 22, and a sealing ring 23 that is fitted to the inner periphery of the dispensing tube 8 is suspended from the periphery thereof.

A knob 24 is provided on the opposite side of the lower end hinge C of the side peripheral wall 21.
At the lower end portion of the side peripheral wall 21, an engaging portion 25 is protruded from the outer peripheral surface of the fitting cylinder 14 of the cap body A, and a step portion 26 is formed by providing a gap with the fitting cylinder 14. Inside the stepped portion 26, a valve seat cylinder 27 that is engaged with the inner peripheral surface of the valve cylinder 15 with a deep groove is suspended.

Next, usage modes and operational effects of the hinge cap of the present invention will be described.
In the hinge cap of the present invention, the container body is filled with the heat-sterilized content liquid, and after the hinge cap is plugged, the container body is sterilized with the heated content liquid, as in the conventional example.
At that time, the air in the lid B is heated and the pressure rises.

As shown in FIG. 2, the flexible portion 22 of the top wall 20 bulges upward as the pressure in the lid B rises, and the valve portion 16 of the valve cylinder 15 deforms outward, so that the lid An air passage is opened between the B seat cylinder 27 and the valve cylinder 15.
Therefore, the air in the air chamber a outside the dispensing cylinder 8 in the lid body is discharged out of the lid through the flow passage.

As shown in FIG. 3, after the heat sterilization, a hot water shower is applied from above the container body, and the container filled with the content liquid is cooled and washed.
At that time, as the temperature decreases, the air pressure in the lid body decreases, the flexible portion 22 of the top wall 20 is restored to its original state, and the valve portion 16 is closed, thereby preventing outside air and cooling water from being sucked. Can do.

Next, another embodiment of the valve cylinder and the valve seat cylinder will be described with reference to the drawings.
In the above embodiment, the valve cylinder 15 is erected on the upper surface of the upper wall 5 of the engagement cylinder 6 of the cap body A, and the valve seat cylinder 27 is provided on the inner periphery of the lower end of the side peripheral wall 21 of the lid B. A valve seat cylinder may be erected on the upper surface of the cylinder, and a valve cylinder may be provided on the inner periphery of the lower end of the side peripheral wall.
About the same structure, it shows with the same code | symbol and demonstrates below centering on difference.

  As shown in FIG. 4, the cap cylinder A and the upper wall 5 of the engagement cylinder 6 are provided with a fitting cylinder 14 standing outside and a valve seat cylinder 30 standing inside.

At the inner peripheral lower end of the side peripheral wall 21 of the lid B, there is provided a valve cylinder 32 having a flexible thin-walled valve portion 31 with a fixed distance from the step portion 26. Yes.
When the pressure in the lid B increases, the valve portion 31 is opened and closed, and the same effect as that of the above embodiment can be obtained.

In the above embodiment, the concave groove 13 is provided on the outer peripheral surface of the fitting cylinder 14, but a plurality of protrusions may be provided instead of the protrusion.
Furthermore, a concave groove or a protrusion may be provided in the inner periphery of the engaging portion 25 at the lower end of the side peripheral wall 21, and an air flow passage is formed between the outer peripheral surface of the fitting tube 14 and the engaging surface. The configuration is not particularly limited.

  Since the valve cylinder is erected on the upper surface of the engagement cylinder of the cap body, the valve seat cylinder that engages the valve cylinder is suspended at the lower end of the side peripheral wall of the lid body, and the valve section that is displaced by pressure is provided. The simple structure prevents the lid from floating or coming off due to the thermal expansion of the air in the lid by heating and filling for easy sterilization, and the outside air and water droplets due to the shrinkage of the air in the lid by a cooling shower As a result, it can be widely used as a hinge cap for liquid food seasonings such as soup and sauce.

It is a vertical front view of the hinge cap of this invention. It is an expanded vertical sectional view of the principal part which shows the state by the pressurization in the lid body of a hinge cap. It is an expanded vertical sectional view of the principal part which shows the state in which the cover body of the hinge cap became negative pressure. It is an expanded longitudinal cross-sectional view of the principal part of the hinge cap of another Example.

Explanation of symbols

A Cap body B Cover C Hinge a Air chamber 1 Mouth tube portion 2 Fitting protrusion 3 Inner tube 4 Outer tube 5 Upper wall 6 Engaging tube 7 Annular wall 8 Outlet tube 9 Bottom wall 10 Remover 11 Cutting groove 12 Pull ring 14 Fitting cylinder 15, 32 Valve cylinder 16, 31 Valve part 17 Connection piece 18 Weaking piece 19 Outer cylinder part 20 Top wall 21 Side peripheral wall 22 Flexible part 23 Sealing ring 24 Knob 25 Engaging part 26 Step part 27, 30 Valve seat tube

Claims (3)

A hinge cap comprising a cap body, a lid and a hinge,
The cap body includes an inner cylinder and an outer cylinder, an engagement cylinder fitted into a container mouth cylinder portion formed from an upper wall, and a dispensing cylinder,
On the upper surface of the upper wall of the engagement cylinder, a fitting cylinder and a valve cylinder having a tip as a valve portion are erected,
The lid includes a top wall and a side peripheral wall,
The lower end of the side peripheral wall is provided with a stepped portion having a peripheral surface provided with an engaging portion joined to the outer peripheral surface of the fitting cylinder, and a valve seat cylinder,
A hinge cap characterized in that an air passage is formed between the outer peripheral surface of the fitting cylinder and the engaging portion of the side peripheral wall. A hinge cap comprising a cap body, a lid and a hinge,
The cap body includes an inner cylinder and an outer cylinder, an engagement cylinder fitted into a container mouth cylinder portion formed from an upper wall, and a dispensing cylinder,
On the upper wall upper surface of the engagement cylinder, a fitting cylinder and a valve seat cylinder are erected,
The lid includes a top wall and a side peripheral wall,
The lower end of the side peripheral wall is provided with a stepped portion having a peripheral surface provided with an engaging portion joined to the outer peripheral surface of the fitting tube, and a valve tube having a tip as a valve portion,
A hinge cap characterized in that an air passage is formed between the outer peripheral surface of the fitting cylinder and the engaging portion of the side peripheral wall.   The hinge cap according to claim 1 or 2, wherein a thin flexible portion that is displaced by pressure is provided on the top wall of the lid.

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