JP2013075687A - Hinge cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap quickly returning an upper lid deformed by pressing when plugging to an original form when pressing is released, and preventing intrusion of hot water into the cap during hot water showering.SOLUTION: In the hinge cap comprising a cap body and an upper lid, the cap body includes a lid engaging cylinder part and an outer circumferential cylinder part, and the upper lid includes a top wall and an outer cylinder wall. An engaging part engaged with the lid engaging part of the cap body is provided at an inner peripheral lower end of the outer cylinder wall; a tilted face is provided on an upper face of the outer circumferential cylinder part of the cap body, or at a lower part of the outer cylinder wall of the upper lid; and an engaging protrusion is provided on a lower face of the outer cylinder wall of the upper lid corresponding to the tilted face, or on an upper face of the outer cylinder wall of the cap body. When plugging, the upper lid goes down to form a flow path of air inside and outside the hinge cap, the engaging protrusion slides along the slope of the tilted face, and after finishing plugging, the restoration force of the outer cylinder wall of the upper lid and engagement of the tilted face with the engaging protrusion press up the upper lid upward, to quickly seal the inside of the hinge cap.

Description

  The present invention relates to a hinge cap in which an upper lid is connected to a cap body attached to a mouth portion of a container via a hinge, and in particular, air in the cap is heated by a heat-sterilized content liquid filled in the container. The present invention relates to a hinge cap that prevents the internal pressure from rising and the upper lid of the cap from opening, and prevents the hot water from being sucked into the cap during cooling by the hot water shower.

  For hinge caps filled with heated content liquid for sterilization, after filling the content liquid, the hinge cap is capped, the inside of the container is sterilized, and then washed and cooled with a hot water shower from the outside of the container. ing.

  In addition, after the cap is plugged, in order to prevent the internal pressure of the air in the cap from rising due to the heat of the content liquid and opening the top lid of the cap, when the internal pressure in the cap rises, An air flow passage is formed in the cap so that the air in the cap escapes to the outside of the container to prevent an increase in internal pressure in the upper lid of the cap (see, for example, Patent Document 1).

JP 2000-272648 A

However, in the hinge cap described in Patent Document 1, the upper lid is deformed by being pressed with a strong force from the top surface of the upper lid at the time of plugging, and the sealing performance of the engaging portion between the upper lid and the cap body is improved. Removed.
When the pressure from the top surface is released after the plugging, the sealing property of the engaging portion between the upper lid and the cap body is restored by the restoring force of the upper lid. In some cases, the upper lid is slowly restored due to variations in the pressing force at the time of stoppering, and when it is washed and cooled in a hot water shower as it is, hot water may enter the cap.

  Further, in the hinge cap described in Patent Document 1, since the air flow passage is formed or closed by the air pressure in the cap, when the air pressure in the cap is high and the air flow passage is formed, When cooling with a hot water shower from outside the container, the air pressure in the cap decreases, and there is a problem that hot water is sucked into the cap together with air before the air flow passage is closed.

  An object of the present invention is to solve the above-mentioned problems, and when the upper lid deformed by pressing at the time of stoppering is returned to its original shape when the pressing is released, the pressure of the air in the cap by heating is restored. An object of the present invention is to provide a hinge cap that suppresses the rise and prevents warm water from entering the cap during a hot water shower.

  In order to solve the above-described problems, the present invention provides a hinge cap that is attached to a mouth tube portion of a container as a hinge cap, and includes a cap body and an upper lid. The cap body includes a dispensing tube, a lid engaging tube portion, The upper lid is provided on the top wall, the outer cylinder wall suspended from the peripheral edge of the top wall, and the lower surface of the top wall, and inserted into the inner circumference of the dispensing cylinder of the cap body. And an engagement portion that engages with the lid engagement cylinder portion of the cap body, and is provided on the lower end of the inner circumference of the outer cylinder wall. An inclined surface is provided at the lower part of the outer cylinder wall, and an engagement protrusion is provided on the lower surface of the outer cylinder wall of the upper lid corresponding to the inclined surface or the upper surface of the outer cylinder wall of the cap body. When the upper lid is lowered, the outer cylindrical wall of the upper lid is deformed outward while being pressed downward, and the inside of the hinge cap And the engagement protrusion slides along the inclination of the inclined surface, and after the stoppering, the restoring force of the outer cylindrical wall of the upper lid and the engagement protrusion with the inclined surface are formed. A configuration is adopted in which the upper lid is lifted upward by engagement with the portion, and the inside of the hinge cap is quickly sealed.

  As an example of the inclined surface and the engaging protrusion, a lid engaging concave portion is formed on the upper surface of the outer peripheral cylindrical portion of the cap body, and the bottom surface of the lid engaging concave portion is inclined upward from the outside to the inside. A configuration is adopted in which an inclined bottom surface is formed, and an annular engagement protrusion that engages with the lid engagement recess of the cap body is suspended from the lower surface of the outer cylindrical wall of the upper lid.

  As another embodiment of the inclined surface and the engaging protrusion, an engaging protrusion protrudes from the upper surface of the outer peripheral cylindrical portion of the cap body, and the engaging portion of the outer cylinder wall of the upper lid is the lid engaging cylinder of the cap body. A lower engagement portion that engages with an engagement protrusion of the cap main body, and the lower engagement portion is an inclined inner surface that is inclined outward from the lower end of the upper engagement portion. And an upper inner surface that is formed from the lower end of the inclined inner surface toward the outer side and that engages with the upper surface of the engaging protrusion of the cap body, and a side inner surface that engages with the outer periphery of the engaging protrusion. Adopt a featured configuration.

  As an embodiment of the air flow path inside and outside the hinge cap, an air escape groove is recessed at a predetermined position on the lower surface of the outer cylindrical wall of the upper lid, or an engagement protrusion A configuration is adopted in which an air escape groove notched from the upper end to the lower end is disposed at a predetermined position.

  As an embodiment of the cap body pouring cylinder, an engaging rib is disposed at a predetermined position on the inner periphery of the cap main body pouring cylinder, and at the time of stoppering, the lower end of the inner cylinder wall of the upper lid rides on the engaging rib, The inner cylinder wall is deformed, an air flow path is formed between the outflow cylinder and the inner cylinder wall, and the upper lid is lifted upward by the restoring force of the inner cylinder wall of the upper lid after the end of the stoppering. Adopt the configuration.

  In the hinge cap according to the present invention, when the upper lid is lowered at the time of plugging, the outer cylindrical wall of the upper lid is deformed outward while being pressed downward, and an air flow path is formed between the inside and outside of the hinge cap. Formed and exhausts air to the outside of the container, and the tip of the engaging projection provided on the lower end of the outer cylinder wall of the upper lid or the upper end of the outer peripheral cylindrical part of the cap main body is the engaging part of the outer peripheral cylindrical part of the cap main body Or, by sliding along the inclination provided in the engaging portion of the outer cylindrical wall of the upper lid, the restoring force of the outer cylindrical wall of the upper lid and the lower end of the outer cylindrical wall of the upper lid or the cap body after the end of the stoppering The upper lid is lifted upward by engaging the tip of the engaging protrusion provided at the upper end of the outer peripheral cylindrical portion with the inclination provided in the outer peripheral cylindrical portion of the cap body or the engaging portion of the outer cylindrical wall of the upper lid. At the same time, return to the original state instantly to seal the air flow path and The Tsu in-flops can be sealed as soon as possible.

  By exhausting the air in the container and quickly sealing the air flow path, the inside of the hinge cap is made slightly negative pressure, and even if the air in the cap rises due to heating, the upper lid can be opened. It is possible to prevent the upper lid from being opened without increasing the pressure.

It is explanatory drawing of the hinge cap of 1st Example of this invention, (a) is sectional side view, (b) is a principal part enlarged view. It is explanatory drawing at the time of lid opening of a hinge cap, (a) is a top view, (b) is a sectional side view. It is explanatory drawing of the hinge cap at the time of a stopper, (a) is a sectional side view, (b) is a principal part enlarged view. It is explanatory drawing of the hinge cap of 2nd Example of this invention, (a) is sectional side view, (b) is a principal part enlarged view. It is explanatory drawing at the time of lid opening of a hinge cap, (a) is a top view, (b) is a sectional side view. It is explanatory drawing of the hinge cap at the time of a stopper, (a) is a sectional side view, (b) is a principal part enlarged view.

  Next, examples of the hinge cap of the present invention will be described with reference to the drawings.

  In FIG. 1, A is a cap body that is plugged into the container body, and B is an upper lid that is integrally formed with the cap body A via a hinge C.

As shown in FIGS. 1 and 2, the cap body A includes a bottom wall 1, a pouring cylinder 2 standing on the periphery of the bottom wall 1, and a ring-shaped upper wall 3 connected to the periphery of the bottom wall 1. A lid engaging cylinder portion 4 erected on the upper surface of the upper wall 3, an inner cylinder 5 suspended from the lower surface of the upper wall 3, and an outer edge of the upper wall 3. The outer peripheral cylinder part 6 which provides the hinge C in a row is provided.
The cap body A is attached to the mouth tube portion of the container body by sandwiching the mouth tube portion of the container body between the outer periphery of the inner tube 5 and the inner periphery of the outer tube portion 6 at the time of stoppering.

  The bottom wall 1 is provided with a thin weakened portion 10 that opens the spout. On the upper surface of the bottom wall 1, a pull ring 11 that is pulled up when the spout is opened is provided with a column in the section of the weakened portion 10. It is erected through.

  On the inner periphery of the dispensing tube 2, an engagement rib 12 is provided on the hinge C side so as to extend from below to a predetermined height.

  The lid engaging cylinder portion 4 has a flat upper surface and a bulging portion 15 having an enlarged diameter on the outer periphery.

A lid engaging recess 16 is annularly formed on the upper surface of the outer cylindrical portion 6.
The lid engaging recess 16 is formed with a certain width between the outer side and the inner side, and an inclined bottom surface 16a rising from the outer side to the inner side is formed on the bottom surface.

The upper lid B is suspended from the top wall 20 and the periphery of the top wall 20, and is suspended from the outer cylinder wall 21 connecting the hinge C to a predetermined position at the lower end of the outer periphery, and the lower surface of the top wall 20. The inner cylinder wall 22 inserted in the inner periphery of the extraction | pouring cylinder 2 is provided.
On the lower surface of the outer cylinder wall 21, an annular engagement protrusion 23 that engages with the lid engagement recess 16 of the outer peripheral cylinder portion 6 of the cap body A is suspended.

On the opposite side of the outer peripheral lower end of the outer cylinder wall 21 from the hinge C, a knob 24 is disposed.
The inner peripheral lower part of the outer cylinder wall 21 is enlarged in diameter, and an engagement part 25 that engages with the lid engagement cylinder part 4 of the cap body A is provided.
On the side of the knob portion 24 on the lower surface of the outer cylindrical wall 21, the air escape extends from the inside to the inner side of the lower surface of the knob portion 24, and a part of the engaging projection 23 is cut out from the lower surface to be recessed. A groove 26 is provided.

The engaging portion 25 is formed of an upper inner surface 25 a that engages with the upper surface of the lid engaging cylinder portion 4 of the cap body A when the cap is closed, and a side inner surface 25 b that engages with the outer periphery of the lid engaging cylinder portion 4. ing.
An air escape groove 27 is recessed at a predetermined position on the upper inner surface 25a, and an engagement recess 28 that engages with the bulging portion 15 of the lid engaging cylinder portion 4 is recessed on the side inner surface 25b. .

  The lid engaging recess 16 of the cap main body A and the engaging projection 23 of the upper lid B have the engaging projection 23 in the lid engaging recess 16 when the lid is closed, and the inner side of the lower end of the engaging projection 23 is The lid engaging recess 16 is formed so as to contact the inner side of the inclined bottom surface 16a.

Next, the effect of the hinge cap of a present Example is demonstrated.
When the engagement concave portion 28 of the engagement portion 25 of the outer cylinder wall 21 of the upper lid B is engaged with the bulging portion 15 of the lid engagement cylinder portion 4 of the cap body A, and the upper lid B is closed to the cap body A, As shown in FIG. 1, an air chamber a is formed inside the hinge cap and an inner tube wall 22 of the cap body A and the inner tube wall 22 of the upper lid B, and an air chamber b is formed outside.

  Further, when the lid is closed, the outer cylinder of the upper lid B is formed on the upper surface of the engagement portion 25 of the upper lid B on the upper surface of the lid engaging cylinder portion 4 of the cap main body A and the upper surface of the outer peripheral cylinder portion 6 of the cap main body A. While the lower surface of the wall 21 is in contact with the inner surface of the inclined bottom surface 16a of the lid engaging recess 16 of the outer peripheral cylindrical portion 6 of the cap body A, the inner side of the engaging projection 23 of the outer cylindrical wall 21 of the upper lid B is applied. It touches.

  When mounting the hinge cap, first, the container body is filled with the heated content liquid, and the closed hinge cap is plugged into the mouth tube portion of the container body from above.

In the hinge cap before the stopper, the air flow path between the air chamber a and the air chamber b is formed by the engagement between the inner peripheral surface of the extraction cylinder 2 of the cap body A and the outer periphery of the inner cylinder wall 22 of the upper lid B. Blocked.
Further, the engagement between the side inner surface 25b of the engagement portion 25 and the engagement recess 28 surface of the outer cylinder wall 21 of the upper lid B and the outer surface and the bulging portion 15 surface of the lid engagement cylinder portion 4 of the cap body A is performed. The air flow path between the air chamber b and the outside of the hinge cap is blocked.

At the time of stoppering, a strong pressing force is applied from the upper part of the upper cover B of the hinge cap, and the upper cover B is pressed against the cap body A and descends.
When the upper cover B is lowered, the lower end of the outer periphery of the inner cylinder wall 22 of the upper cover B slides on the inner peripheral surface of the extraction cylinder 2 of the cap body A.
When further lowered, the outer peripheral lower end portion of the inner cylindrical wall 22 comes into contact with the engaging rib 12 disposed on the inner peripheral portion of the extraction cylinder 2, and the abutting portion of the inner cylindrical wall 22 is deformed inward. Create a gap.

  As a result, the upper lid B is lowered with respect to the cap body A, and the pressed air in the air chamber a is discharged into the air chamber b with a slight gap as a flow passage.

  Further, when the upper lid B is pressed against the cap body A, the upper surfaces of the lid engaging cylindrical portion 4 and the outer peripheral cylindrical portion 6 of the cap main body A, and the lower surfaces of the engaging portion 25 of the upper lid B and the outer cylindrical wall 21 As a result of the engagement, the outer cylinder wall 21 of the upper lid B is deformed outward while being pressed downward.

  As shown in FIG. 3, the outer cylindrical wall 21 of the upper lid B is deformed outward while being pressed downward, so that the lower end of the engaging projection 23 of the outer cylindrical wall 21 of the upper lid B becomes the cap main body A. The outer peripheral cylindrical portion 6 slides outward while descending along the inclination of the inclined bottom surface 16 a of the lid engaging recess 16, and the outer surface of the engaging projection 23 is the lid engaging recess 16 of the cap body A. The deformation toward the outside of the outer cylinder wall 21 is stopped by contacting the outer surface of the outer cylinder wall 21.

  When the outer cylindrical wall 21 of the upper lid B is deformed outward, the side inner surface 25b and the engagement concave portion 28 of the engaging portion 25 of the upper lid B, the outer peripheral surface and the swelling of the lid engaging cylindrical portion 4 of the cap body A The engagement with the surface of the protruding portion 15 is released, and a gap is created.

  Then, the upper lid B descends with respect to the cap body A, and the air in the pressed air chamber b passes through the air release groove 27 provided in the upper inner surface 25a of the engaging portion 25 of the upper lid B, and passes through the upper lid B. The air escape groove 26 is formed in a recess formed in the lower surface of the outer cylindrical wall 21 of the upper lid B through the gap between the side inner surface 25b of the engaging portion 25 and the outer peripheral surface of the lid engaging cylindrical portion 4 of the cap body A. It is discharged out of the container.

After completion of the plugging, the pressing force on the upper lid B is removed.
At that time, due to the restoring force of the inner cylinder wall 22 of the upper lid B, the lower end of the outer periphery of the inner cylinder wall 22 is disengaged from the engaging rib 12 of the inner circumference of the extraction cylinder 2 and also due to the restoring force of the outer cylinder wall 21 of the upper lid B. The lower end of the engaging projection 23 of the outer cylinder wall 21 of the upper lid B slides inward along the inclination of the inclined bottom surface 16a of the lid engaging recess 16 of the outer peripheral cylinder part 6 of the cap body A. Since the upper lid B is to be lifted upward, the upper lid B is raised with respect to the cap body A, and the hinge cap is quickly returned to the original state.

As shown in FIG. 1, the air between the air chamber a and the air chamber b is again engaged with the inner peripheral surface of the extraction cylinder 2 of the cap body A and the lower outer periphery of the inner cylinder wall 22 of the upper lid B. Since the flow path is quickly closed, the inside of the air chamber a communicating with the outside air is slightly negative.
Further, the engagement between the side inner surface 25b of the engaging portion 25 and the engaging concave portion 28 of the outer cylindrical wall 21 of the upper lid B, and the outer peripheral surface and the bulging portion 15 of the lid engaging cylindrical portion 4 of the cap main body A causes the air. Since the air flow path between the chamber b and the outside of the container is quickly sealed, the air chamber b also has a slight negative pressure.

Even if the air in the hinge cap is heated by the heated liquid in the container or the hot water shower, the inside of the cap has a slightly negative pressure, so the increase in the internal pressure in the hinge cap can be kept low. it can.
For this reason, even if the internal pressure in the hinge cap increases, it is possible to prevent the upper cover B of the hinge cap from opening the cap body A due to the increase in internal pressure.

As described above, the hinge cap of the present embodiment is deformed outward while the outer cylinder wall 21 of the upper lid B is pressed downward against the cap body A at the time of plugging, so that the outer cylinder of the upper lid B is deformed. The lower end of the engaging protrusion 23 of the wall 21 is slid outward while descending along the inclination of the inclined bottom surface 16a of the lid engaging recess 16 of the outer peripheral cylindrical part 6 of the cap body A.
After the end of the plugging, the lower end of the engaging projection 23 of the outer cylinder wall 21 of the upper cover B is inclined by the restoring force of the outer cylinder wall 21 of the upper cover B so that the lid engaging recess 16 of the outer peripheral cylinder part 6 of the cap body A is inclined. By moving along the inclination of the bottom surface 16 a, the outer cylinder wall 21 is lifted upward so that the side inner surface 25 b of the engaging portion 25 of the outer cylinder wall 21 and the outer peripheral surface of the lid engaging cylinder portion 4 are engaged. Because the air flow path between the air chamber b and the outside of the container is quickly sealed, the inside of the air chamber b is slightly negative pressure and the water of the hot water shower is placed inside the air chamber b. Intrusion can be prevented.

  In addition, when the stopper is plugged, the outer surface of the engaging projection 23 of the outer cylindrical wall 21 of the upper lid B comes into contact with the outer surface of the lid engaging recess 16 of the outer peripheral cylindrical portion 6 of the cap body A. Since the deformation toward the outside of the cap 21 is stopped, the outer cylinder wall 21 is deformed excessively by the strong pressing force of the stopper, and the upper surface of the lid engaging cylinder portion 4 and the upper surface of the outer peripheral cylinder portion 6 of the cap body A and the upper lid B It is possible to prevent the upper cover B from being lowered too much by disengaging the upper inner surface 25a of the engaging portion 25 from the lower surface of the outer cylindrical wall 21.

Next, a description will be given of a second embodiment in which the configuration of the outer peripheral cylinder portion of the cap body and the outer cylinder portion of the upper lid in the first embodiment is changed.
The same components as those of the first embodiment of the present embodiment are denoted by the same reference numerals, detailed description thereof is omitted, and differences will be mainly described.

  4 and 5, Aa is a cap body that is plugged into the container body, and Ba is an upper lid that is integrally formed with the cap body Aa via a hinge C.

On the upper surface of the outer peripheral cylinder portion 6 of the cap body Aa, an annular engagement protrusion 30 is provided in a ring shape.
On the side opposite to the hinge C of the engaging protrusion 30, an air escape groove 31 cut out from the upper end to the lower end is disposed.

  The upper lid Ba includes a top wall 20 and an outer cylindrical wall 35 that is suspended from the periphery of the top wall 20 and that is connected to a hinge C at a predetermined position on the lower end of the outer periphery. The knob 24 is disposed on the opposite side of

  The lower diameter of the inner peripheral lower portion of the outer cylinder wall 35 is increased in diameter and engaged with the lid engaging cylinder portion 4 of the cap main body Aa and the engagement protrusion 30 of the cap main body Aa. An engaging portion 37 is provided.

The upper engaging portion 36 is formed of an upper inner surface 36a that engages with the upper surface of the lid engaging cylinder portion 4 of the cap main body Aa when the cap is closed, and a side inner surface 36b that engages with the outer periphery of the lid engaging cylinder portion 4. Has been.
An air escape groove 38 is recessed at a predetermined position on the upper inner surface 36a, and an engagement recess 39 that engages with the bulging portion 15 of the lid engaging cylinder portion 4 is recessed on the side inner surface 36b. .

  The lower engaging portion 37 is formed with an inclined inner surface 37a inclined outward from the lower end of the side inner surface 36b of the upper engaging portion 36, and an engaging protrusion of the cap body Aa. An upper inner surface 37 b that engages with the upper surface of the portion 30 and a side inner surface 37 c that engages with the outer periphery of the engaging protrusion 30 are formed.

Next, the effect of the hinge cap of a present Example is demonstrated.
When the engagement concave portion 39 of the upper engagement portion 36 of the outer cylinder wall 35 of the upper lid Ba is engaged with the bulging portion 15 of the lid engagement cylinder portion 4 of the cap body Aa, the upper lid Ba is closed to the cap body Aa. As shown in FIG. 4, an air chamber a and an air chamber b are formed in the hinge cap on the inner side than the inner tube wall 22 of the engaged cap main body Aa and the upper cover Ba, and on the outer side. Yes.

  Further, when the lid is closed, the lid engaging cylinder portion 4 of the cap main body Aa, the upper engaging portion 36 of the outer cylindrical wall 35 of the upper lid Ba, and the outer cylindrical wall 6 of the cap main body Aa are disposed on the outer cylindrical wall of the upper lid Ba. The upper surface 37b and the side inner surface 37c of the lower engaging portion 37 of the outer cylindrical wall 35 of the upper lid Ba are formed on the upper surface and the outer surface of the engaging projection 30 of the outer peripheral cylindrical portion 6 of the cap body Aa. Are in contact.

  When mounting the hinge cap, first, the container body is filled with the heated content liquid, and the closed hinge cap is plugged into the mouth tube portion of the container body from above.

In the hinge cap before the stopper, the air flow path between the air chamber a and the air chamber b is formed by the engagement between the inner peripheral surface of the extraction cylinder 2 of the cap body Aa and the outer periphery of the inner cylinder wall 22 of the upper lid Ba. Blocked.
Further, the side inner surface 36b and the engagement recess 39 surface of the upper engagement portion 36 of the outer cylinder wall 35 of the upper lid Ba, and the engagement between the outer surface of the lid engagement cylinder portion 4 and the bulging portion 15 surface of the cap body Aa. Thus, the air flow path between the air chamber b and the outside of the hinge cap is blocked.

  At the time of plugging, a strong pressing force is applied from the upper part of the upper cover Ba of the hinge cap, and the upper cover Ba is pressed against the cap body Aa and descends, and the air in the pressed air chamber a is the same as in the first embodiment. The slight gap is used as a flow passage and is discharged into the air chamber b.

  When the upper lid Ba is pressed against the cap main body Aa, the upper surface and the outer surface of the lid engaging cylinder portion 4 of the cap main body Aa, the upper surface of the outer peripheral cylinder portion 6, and the upper portion of the outer cylindrical wall 35 of the upper lid Ba. Due to the engagement between the engaging portion 36 and the lower surface of the outer cylinder wall 35, the outer cylinder wall 35 of the upper lid Ba is deformed outward while being pressed downward.

  Due to the deformation of the outer cylindrical wall 35 of the upper lid Ba, the upper inner surface 37b of the lower engaging portion 37 of the outer cylindrical wall 35 of the upper lid Ba faces the outer side with respect to the upper end of the engaging protrusion 30 of the cap body Aa. When sliding further progresses, as shown in FIG. 6, the upper inner surface 37b of the lower engaging portion 37 of the outer cylindrical wall 35 of the upper lid Ba is disengaged from the upper end of the engaging protrusion 30 of the cap body Aa. The lower end of the inclined inner surface 37a of the lower engaging portion 37 of the outer cylindrical wall 35 comes into contact, and the engaging point moves upward.

  When the outer cylinder wall 35 of the upper lid Ba is deformed outward, the side inner surface 36b and the engagement recess 39 surface of the upper engagement portion 36 of the upper lid Ba, the outer peripheral surface of the lid engagement cylinder portion 4 of the cap body Aa, and The engagement with the surface of the bulging portion 15 is released, and a gap is created.

  Then, the upper lid Ba descends with respect to the cap body Aa, and the air in the pressed air chamber b is an air relief groove recessed in the upper inner surface 36a of the upper engaging portion 36 of the outer cylindrical wall 35 of the upper lid Ba. 38, the clearance between the side inner surface 36b of the upper engaging portion 36 of the upper lid Ba and the outer peripheral surface of the lid engaging cylindrical portion 4 of the cap main body Aa, and the air escape groove of the engaging protrusion 30 of the cap main body Aa. It passes through 31 and is discharged out of the container.

When the pressing force on the upper lid Ba is removed after the stoppering, the upper lid Ba is raised relative to the cap body Aa by the restoring force of the inner cylindrical wall 22 of the upper lid Ba, and the outer cylindrical wall 35 of the upper lid Ba is restored. Due to the force, the upper end of the engagement protrusion 30 of the outer peripheral cylinder part 6 of the cap body Aa slides downward on the inclined inner surface 37a of the lower engagement part 37 of the outer cylinder wall 35 of the upper cover Ba, thereby moving the upper cover Ba upward. The upper lid Ba is raised with respect to the cap body Aa, the hinge cap is quickly returned to the original state, the air flow path between the inside and outside of the container is quickly sealed, and the inside of the container is slightly Negative pressure can be applied.
Other functions and effects are the same as those of the first embodiment.

  The hinge cap of the present embodiment is deformed outward while the outer cylinder wall 35 of the upper lid Ba is pressed downward against the cap main body Aa at the time of stoppering, so that the outer cylinder section 6 of the cap main body Aa is engaged. Abutting the upper end of the mating projection 30 is the inclined inner surface 37a of the lower engaging portion 37 of the outer cylindrical wall 35 of the upper lid Ba, and the upper lid is moved while the inclined inner surface 37a slides with respect to the upper end of the engaging projection 30. The outer cylinder wall 35 of Ba is deformed.

  And, since the outer cylinder wall 35 of the upper lid Ba tries to move inward by the restoring force of the outer cylinder wall 35 of the upper lid Ba after the end of the stoppering, the engagement protrusion 30 of the outer circumferential cylindrical portion 6 of the cap body Aa The upper end slides on the inclined inner surface 37a of the lower engaging portion 37 of the outer cylindrical wall 35 to lift the outer cylindrical wall 35 upward, and the side inner surface 36b of the upper engaging portion 36 of the outer cylindrical wall 35 and the lid engaging cylindrical portion 4 Since the air passage between the air chamber b and the outside of the container is quickly sealed, the inside of the air chamber b is slightly negative pressure and the hot water shower Water or the like can be prevented from entering the inside of the air chamber b.

  In the present invention, the hinge cap is plugged into the container to make the inside of the hinge cap slightly negative pressure, and the contents in the container or the air in the hinge cap is heated by the hot water shower to open the upper cover of the hinge cap. Since it is possible to prevent the cap from being covered and to prevent the cooling water from being sucked into the cap, it can be widely used as a hinge cap for containers of various contents to be heated and filled.

A, Aa Cap body B, Ba Top lid C Hinge a, b Air chamber 1 Bottom wall 2 Outflow cylinder 3 Top wall 4 Lid engagement cylinder part 5 Inner cylinder 6 Outer cylinder part 10 Weak part 11 Pull ring 12 Engagement rib 15 Expansion Protruding portion 16 Lid engaging recess 16a Inclined bottom surface 20 Top wall 21, 35 Outer cylinder wall 22 Inner cylinder wall 23, 30 Engaging protrusion 24 Knob 25 Engaging portion 25a, 36a, 37b Upper inner surface 25b, 36b, 37c side Inner surface 26, 27, 38 Air escape groove 28, 39 Engaging recess 31 Air escape groove 36 Upper engaging portion 37 Lower engaging portion 37a Inclined inner surface

Claims (6)

In the hinge cap attached to the mouth tube portion of the container and consisting of a cap body and an upper lid,
The cap body includes a dispensing tube, a lid engaging tube portion, and an outer tube portion,
The upper lid includes a top wall, an outer cylinder wall suspended from the periphery of the top wall, an inner cylinder wall suspended from the lower surface of the top wall and inserted into the inner periphery of the extraction cylinder of the cap body,
At the lower end of the inner periphery of the outer cylinder wall, an engagement portion that engages with the lid engagement cylinder portion of the cap body is provided,
An inclined surface is provided on the upper surface part of the outer peripheral cylinder part of the cap body or the lower part of the outer cylinder wall of the upper lid,
Engaging protrusions are provided on the lower surface of the outer cylinder wall of the upper lid corresponding to the inclined surface, or on the upper surface of the outer cylinder wall of the cap body,
When the upper lid is lowered at the time of plugging, the outer cylindrical wall of the upper lid is deformed outward while being pressed downward to form an air flow path between the inside and outside of the hinge cap, and the engaging protrusion is Sliding along the slope of the inclined surface,
A hinge cap characterized in that after the end of the stopper, the upper lid is lifted upward by the restoring force of the outer cylinder wall of the upper lid and the engagement between the inclined surface and the engaging protrusion, and the inside of the hinge cap is quickly sealed. . On the upper surface of the outer peripheral cylindrical portion of the cap body, a lid engaging recess is provided,
On the bottom surface of the lid engaging recess, an inclined bottom surface that is inclined upward from the outside to the inside is formed,
2. The hinge cap according to claim 1, wherein an annular engaging projection that engages with a lid engaging recess of the cap body is suspended from the lower surface of the outer cylinder wall of the upper lid. On the upper surface of the outer peripheral cylindrical portion of the cap body, an engaging protrusion is provided to protrude,
The engagement portion of the outer cylinder wall of the upper lid includes an upper engagement portion that engages with the lid engagement cylinder portion of the cap body, and a lower engagement portion that engages with the engagement protrusion of the cap body,
The lower engaging portion is an inclined inner surface that is inclined outward from the lower end of the upper engaging portion, and an upper inner surface that is formed outward from the lower end of the inclined inner surface and engages with the upper surface of the engaging protrusion of the cap body. The hinge cap according to claim 1, wherein a side inner surface that engages with an outer periphery of the engaging protrusion is formed.   The hinge cap according to any one of claims 1 to 3, wherein an air escape groove is recessed at a predetermined position on the lower surface of the outer cylindrical wall of the upper lid.   The hinge cap according to any one of claims 1 to 4, wherein an air escape groove cut out from an upper end to a lower end is disposed at a predetermined position of the engaging protrusion. An engagement rib is disposed at a predetermined position on the inner periphery of the dispensing cylinder of the cap body,
At the time of plugging, the lower end of the inner cylinder wall of the upper lid rides on the engagement rib, deforms the inner cylinder wall, and forms an air flow path between the outflow cylinder and the inner cylinder wall,
The hinge cap according to any one of claims 1 to 5, wherein the upper lid is lifted upward by the restoring force of the inner cylinder wall of the upper lid after the end of the stoppering.

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