JP2022072710A - Hinge cap - Google Patents

Abstract

To easily eliminate cooling water that has entered inside of a lid.SOLUTION: A hinge cap is provided with: a locking projection part in which a lower end opening edge of a peripheral wall 25 of a lid body 12 is in contact with or close to an upper surface of a covering wall 19 of a cap body 11, and a locked part formed on the peripheral wall of the lid body is detachably locked on a front side part located on an opposite side of a hinge 17 that sandwiches a cap axis O in a radial direction, on an upper surface of the covering wall; and a vertical gap in a portion located between the locking projection part and the hinge along a circumference of the cap axis between the lower end opening edge of the peripheral wall of the lid body and the upper surface of the covering wall.SELECTED DRAWING: Figure 3

Description

The present invention relates to a hinge cap.

Conventionally, for example, as shown in Patent Document 1 below, a cap body having a covering wall covering the mouth of a container body containing the contents and having a spout for pouring out the contents formed on the covering wall. And, via a ridged tubular lid that is rotatably connected to the cap body via a hinge and covers the spout so that it can be opened and closed, and a weakening part that can be broken at the opening edge of the spout in the covering wall. Hinge caps are known to be coupled with an obstructor that occludes the spout.

Japanese Unexamined Patent Publication No. 2017-81617

However, in the conventional hinge cap, when the container body is shower-cooled while being attached to the mouth of the container body filled with high-temperature contents, the inside of the lid becomes negative pressure and the cooling water is cooled. However, there was a risk of being sucked into the inside of the lid through between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall.

One aspect of the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a hinge cap capable of easily extinguishing the cooling water sucked into the inside of the lid. Make it one.

In order to achieve the above object, the hinge cap of one aspect of the present invention has a covering wall covering the mouth of the container body in which the contents are housed, and the contents are poured out to the covering wall. A cap body in which an outlet is formed, a ridged tubular lid that is rotatably connected to the cap body via a hinge and covers the spout so as to be openable and closable, and an opening of the spout in the covering wall. The lower end opening of the peripheral wall of the lid body is provided with a closing body connected to the edge portion via a breakable weakening portion and closing the spout, and a plug removing body connecting the lid body and the closing body. An edge is formed on the peripheral wall of the lid in an anterior portion located on the upper surface of the covering wall on the opposite side of the hinge that radially sandwiches the cap shaft. A locking protrusion is provided in which the locked portion is detachably locked, and is provided along the circumference of the cap axis between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall. A vertical gap is provided in a portion located between the locking protrusion and the hinge.

According to the present invention, in the vertical direction between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall, which is located between the locking protrusion and the hinge along the circumference of the cap axis. For example, when the container body is shower-cooled with the hinge cap attached to the mouth of the container body filled with high-temperature contents of 65 ° C or higher, the inside of the lid is exposed. Even if the pressure becomes negative and the cooling water is sucked into the inside of the lid through between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall, for example, air is introduced inside the lid through the gap. Can be blown in, and the cooling water that has entered the inside of the lid can be easily eliminated.
Since the gap is provided between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall, it is possible to suppress fluctuations in the internal pressure of the lid, which is caused by an increase in the internal pressure of the lid. Therefore, it is possible to prevent the lid from being inadvertently opened, and it is possible to prevent the cooling water from being sucked into the inside of the lid due to the decrease in the internal pressure of the lid.
Since the lid body and the obstructed body are connected by the unplugged body, when the lid body is rotated upward around the hinge with respect to the cap body, the unplugged body and the obstructed body are pulled up with respect to the covering wall, and the weakened portion. Is broken and the spout is opened. Therefore, the seal can be opened only by the operation of opening the lid without performing the operation of pulling up the member such as the pull ring after opening the lid.
Since the lid and the closed body are connected by the unplugging body in this way, for example, a locking protrusion is provided on the upper surface of the covering wall over the entire length in the circumferential direction along the circumference of the cap axis, and the locking protrusion is provided. Even if the locked portion is not locked over the entire length in the circumferential direction, it is possible to prevent the lid from being inadvertently opened due to an increase in the internal pressure of the lid.
Since the locking protrusion is provided on the upper surface of the covering wall on the front side portion located on the opposite side of the hinge that sandwiches the cap shaft in the radial direction, the locking protrusion is rotated around the hinge of the lid body after the weakened portion is broken and opened. With the movement, the locked portion of the lid can be easily attached to and detached from the locking protrusion.

At least one of the peripheral wall of the lid and the covering wall, the lower end of the peripheral wall of the lid is located between the locking protrusion and the hinge along the cap axis. An expansion recess may be formed in which the vertical gap between the opening edge and the upper surface of the covering wall is wider than the others.

In this case, since the expansion recess is formed in the lower end of the peripheral wall of the lid and at least one of the covering walls, the gap between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall. Can be reliably provided.

On the upper surface of the covering wall, an inclined surface extending downward as the distance from the spout side may be formed at a portion located outside the spout.

In this case, on the upper surface of the covering wall, an inclined surface extending downward as the distance from the spout side is formed is formed on the portion located outside the spout, so that the surface is sucked into the inside of the lid as described above. The cooling water can be easily discharged to the outside away from the spout side along the inclined surface.

On the upper surface of the covering wall, the portion located outside the spout may be a smooth surface over the entire area.

In this case, on the upper surface of the covering wall, the portion located on the outside of the spout is a smooth surface over the entire area, so that the inside of the lid is as described above as compared with the case where a groove or the like is formed, for example. The cooling water sucked into the water can be easily eliminated.

According to one aspect of the present invention, the cooling water sucked into the inside of the lid can be easily eliminated.

It is a top view which shows the hinge cap of one Embodiment. FIG. 1 is a cross-sectional view taken along the line II-II of FIG. It is a side view which saw the hinge cap shown in FIG. 1 from the left-right direction.

Hereinafter, the hinge cap 1 according to the embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3.
The hinge cap 1 includes a cap body 11, a lid body 12, a closing body 13, and a plugging body 14.

The cap body 11, the lid 12, and the closure 13 are integrally formed of a resin material such as linear low density polyethylene (LLDPE) or low density polyethylene (LDPE). The cap body 11, the lid 12, and the closure 13 may be made of another resin material.
The unplugging body 14 is made of a material harder than the cap body 11, the lid body 12, and the closing body 13, such as polyethylene terephthalate (PET), polyacetal (POM), or polypropylene (PP). However, the constituent material of the unplugging body 14 is not particularly limited, and may be a resin material other than the above.

The cap body 11 and the lid body 12 are each formed in a ridged cylinder shape. The cap body 11 and the lid body 12 are arranged in a state where their respective central axes are located on a common axis.
Hereinafter, this common axis is referred to as a cap axis O, and the direction along the cap axis O is referred to as a vertical direction. The top wall 15 side of the lid 12 along the vertical direction is referred to as the upper side, and the open end side of the mounting cylinder 18 of the cap body 11 along the vertical direction is referred to as the lower side. When viewed from the vertical direction, the direction that orbits around the cap axis O is called the circumferential direction, and the direction that intersects the cap axis O is called the radial direction. When viewed from the vertical direction, the side where the hinge 17 described later is located is called the rear side with respect to the cap shaft O, and the opposite side of the hinge 17 sandwiching the cap shaft O in the radial direction is called the front side, which is orthogonal to the front-rear direction. The direction of movement is called the left-right direction.

The cap body 11 has a mounting cylinder 18 and a covering wall 19. The cap body 11 does not have to have the mounting cylinder 18.

The mounting cylinder 18 is fitted onto the mouth portion W1 of the container body W in which the contents are housed. The mounting cylinder 18 may be screwed to the mouth portion W1.
The covering wall 19 covers the upper end opening of the mouth portion W1. On the lower surface of the covering wall 19, a seal cylinder 19a that projects downward and is fitted in the mouth portion W1 is formed. A spout 21 for pouring out the contents is formed on the covering wall 19. A pouring cylinder 22 is formed on the upper surface of the covering wall 19 so as to project upward and surround the spout 21. The dispensing cylinder 22 continuously surrounds the opening edge of the spout 21 on the upper surface of the covering wall 19 over the entire circumference. The upwardly protruding length of the dispensing cylinder 22 is maximum at the front end and minimum at the rear end.

The obstruction body 13 is connected to the opening edge of the spout 21 in the covering wall 19 via a breakable weakening portion 23 to block the spout 21. The obstructed body 13 is formed in a plate shape with the front and back surfaces facing in the vertical direction. The outer peripheral edge portion of the obstruction body 13 is connected to the covering wall 19 via the weakening portion 23 over the entire circumference. At the front end of the obstruction body 13, a bottomed cylindrical connecting cylinder 24 protruding upward is provided. The connecting cylinder 24 is integrally formed with the closing body 13. A support shaft 13a projecting upward is formed on the bottom surface of the connecting cylinder 24. A vertical rib 24a that protrudes rearward and is connected to the upper surface of the obstruction body 13 is formed at the rear end portion of the connecting cylinder 24. The vertical ribs 24a are formed in a plate shape with the front and back surfaces facing in the left-right direction. The connecting cylinder 24 may protrude downward from the closed body 13.

The lid 12 has a peripheral wall 25 and a top wall 15. The lid 12 is rotatably connected to the cap body 11 via a hinge 17 in the vertical direction, and covers the spout 21 so as to be openable and closable. The rear end of the peripheral wall 25 of the lid 12 and the rear end of the mounting cylinder 18 of the cap body 11 are connected via a hinge 17. The lid 12, the cap body 11, and the hinge 17 are integrally formed. The lower end opening edge of the peripheral wall 25 of the lid 12 is in contact with or close to the upper surface of the covering wall 19.

At the front end of the peripheral wall 25 of the lid 12, a knob portion 25a projecting outward in the radial direction and a locked portion 25b projecting inward in the radial direction are formed. The grip portion 25a and the locked portion 25b are formed at the lower end portion of the peripheral wall 25 of the lid 12. The knob portion 25a is formed in a plate shape with the front and back surfaces facing in the vertical direction. The knob portion 25a has a rectangular shape that is long in the circumferential direction when viewed from the vertical direction. The locked portion 25b is formed in a ridge shape extending in the circumferential direction. The sizes of the knob portion 25a and the locked portion 25b in the circumferential direction are the same as each other. The position in the circumferential direction in which the locked portion 25b is provided is the same as the position in the circumferential direction in which the knob portion 25a is provided.

A sealing cylinder 15a is formed on the top wall 15 of the lid 12 so as to project downward and is detachably fitted in the ejection cylinder 22 of the cap body 11. The downwardly protruding length of the sealing cylinder 15a becomes longer from the front side to the rear side along the circumferential direction. A mounting hole 15b penetrating in the vertical direction is formed in the top wall 15 of the lid 12. The mounting hole 15b is formed at the front end of the top wall 15 of the lid 12. The mounting hole 15b includes a large-diameter upper hole opened on the upper surface of the top wall 15 and a small-diameter pilot hole opened on the lower surface of the top wall 15. These upper holes and pilot holes are arranged coaxially with the connecting cylinder 24 provided in the closed body 13. The upper end portion of the connecting cylinder 24 is fitted into a pilot hole having a small diameter in the mounting hole 15b. A protrusion 15c is formed on the top wall 15 of the lid 12 so as to project downward and abut on or close to the upper end edge of the vertical rib 24a.

The unplugging body 14 connects the lid body 12 and the closing body 13. The unplugging body 14 includes a substrate portion 14a fitted in a large-diameter upper hole of the mounting holes 15b, and a protruding cylinder 14b protruding downward from the substrate portion 14a and fitted in the connecting cylinder 24. It is equipped with. The support shaft 13a is fitted in the projecting cylinder 14b. The closing body 13 is fixed to the unplugging body 14 via the connecting cylinder 24.

The unplugging body 14 may be integrally formed with either one of the lid body 12 and the closing body 13, or may be adhered to any one of the lid body 12 and the closing body 13. good. The connection structure between the unplugging body 14 and the lid body 12 and the connecting structure between the unplugging body 14 and the closing body 13 are not limited to the examples shown in the drawings, and may be appropriately changed.

Here, a locking protrusion 26 is provided on the front side portion of the upper surface of the covering wall 19 so that the locked portion 25b formed on the peripheral wall 25 of the lid 12 is detachably locked.

The locking protrusion 26 is provided in front of the dispensing cylinder 22. The locking protrusion 26 is provided at the front end portion on the upper surface of the covering wall 19. The locking protrusion 26 is formed in a curved plate shape with the front and back surfaces facing in the radial direction and extending in the circumferential direction. A convex portion protruding forward is formed in the locking protrusion 26, and the locked portion 25b of the lid body 12 is undercut fitted to the convex portion. The circumferential length of the locking protrusion 26 is shorter than the circumferential length of the locked portion 25b. The locking protrusion 26 and the locked portion 25b exhibit a symmetrical shape with respect to a straight line extending in the front-rear direction through the cap axis O when viewed from the vertical direction. The locking protrusion 26 is provided around the cap shaft O over an angle range of, for example, 40 ° or more and 90 ° or less (40 ° in the illustrated example).

On the upper surface of the covering wall 19, the portion located outside the spout 21 is a smooth surface over the entire area. On the upper surface of the covering wall 19, an inclined surface 19b extending downward as the distance from the spout 21 side is formed is formed in a portion located outside the spout 21.

In the illustrated example, an inclined surface 19b is formed on the inner peripheral portion of the upper surface of the covering wall 19 connected to the outer peripheral surface of the pouring cylinder 22 among the portions located outside the spout 21, and a cap is formed on the outer peripheral portion. A flat surface 19c extending in a direction orthogonal to the axis O is formed. The inclined surface 19b and the flat surface 19c extend continuously over the entire length in the circumferential direction. On the upper surface of the covering wall 19, an inclined surface 19b is formed in a portion of the portion located outside the spout 21 located inside the locking protrusion 26 in the radial direction, and the inclined surface 19b is formed in the radial direction from the locking protrusion 26. A flat surface 19c is formed in a portion located on the outer side of the above.

In the upper surface of the covering wall 19, of the portions located outside the spout 21, a flat surface 19c may be formed on the inner peripheral portion and an inclined surface 19b may be formed on the outer peripheral portion, or the covering wall 19 may be formed. An inclined surface 19b or a flat surface 19c may be formed on the entire upper surface of the spout 21 located outside the spout 21.

A vertical gap between the lower end opening edge of the peripheral wall 25 of the lid 12 and the upper surface of the covering wall 19 located between the locking protrusion 26 and the hinge 17 along the circumferential direction. Is provided. In the present embodiment, the lid is located at the lower end of the peripheral wall 25 of the lid 12 and at least one of the covering walls 19 at a portion located between the locking protrusion 26 and the hinge 17 along the circumferential direction. An expansion recess 10 is formed in which the vertical gap between the lower end opening edge of the peripheral wall 25 of 12 and the upper surface of the covering wall 19 is wider than the others.

In the illustrated example, the expansion recess 10 is formed at the lower end of the peripheral wall 25 of the lid 12. The expansion recess 10 penetrates the peripheral wall 25 of the lid 12 in the radial direction. The expansion recesses 10 are separately provided on both sides of the cap shaft O in the radial direction. Each expansion recess 10 extends continuously in the circumferential direction. In addition, each expansion recess 10 may extend intermittently in the circumferential direction. The expansion recess 10 has a long rectangular shape in the front-rear direction when viewed from the left-right direction. The vertical size of the expansion recess 10 is smaller than the vertical size of the grip portion 25a. The vertical size of the expansion recess 10 is, for example, 0.2 mm or more and 1.0 mm or less (1.0 mm in the illustrated example).

The size of the expansion recess 10 in the circumferential direction is equal to the size of the locked portion 25b of the lid 12 in the circumferential direction, and larger than the size of the locking protrusion 26 of the cap body 11 in the circumferential direction. The expansion recess 10 is provided around the cap shaft O over an angle range of, for example, 90 ° or more and 135 ° or less. The expansion recess 10 exhibits a symmetrical shape with respect to a straight line extending in the left-right direction through the cap axis O when viewed from the vertical direction. The front end portion of the expansion recess 10 is close to the circumferential end portion of the locked portion 25b in the circumferential direction when viewed from the vertical direction.

In the above configuration, when the lid body 12 is rotated upward around the hinge 17 with respect to the cap body 11, the closing body 13 is pulled up with respect to the covering wall 19 via the plugging body 14 and the connecting cylinder 24. The weakened portion 23 is broken, and the spout 21 is opened. In this process, the locked portion 25b of the lid body 12 gets over the locking protrusion 26 of the cap body 11 upward and is disengaged from the locking protrusion 26, and the sealing cylinder 15a of the lid body 12 is the cap body. It comes off from the inside of the dispenser 22 of 11.

According to the hinge cap 1 of the present embodiment, the locking protrusion 26 and the hinge 17 are provided along the circumferential direction between the lower end opening edge of the peripheral wall 25 of the lid 12 and the upper surface of the covering wall 19. Since a gap in the vertical direction is provided in the portion located between them, for example, the container main body is in a state where the hinge cap 1 is attached to the mouth portion W1 of the container main body W filled with the contents having a high temperature of 65 ° C. or higher. When W is shower-cooled, the inside of the lid 12 becomes a negative pressure, and the cooling water passes between the lower end opening edge of the peripheral wall 25 of the lid 12 and the upper surface of the covering wall 19 of the lid 12. Even if it is sucked inward, for example, air can be blown into the inside of the lid 12 through the gap, and the cooling water that has entered the inside of the lid 12 can be easily eliminated.

Since the gap is provided between the lower end opening edge of the peripheral wall 25 of the lid 12 and the upper surface of the covering wall 19, it is possible to suppress fluctuations in the internal pressure of the lid 12, and the lid 12 It is possible to prevent the lid 12 from being inadvertently opened due to the increase in the internal pressure, and it is possible to prevent the cooling water from being sucked into the inside of the lid 12 due to the decrease in the internal pressure of the lid 12. be able to.

Since the lid body 12 and the closing body 13 are connected by the plugging body 14, when the lid body 12 is rotated upward around the hinge 17 with respect to the cap body 11, the plugging body 14 and the closing body 13 are covered with the covering wall. It is pulled up with respect to 19, the weakened portion 23 is broken, and the spout 21 is opened. Therefore, the seal can be opened only by opening the lid 12 without pulling up a member such as a pull ring after opening the lid 12.
Since the lid 12 and the closing body 13 are connected by the unplugging body 14 in this way, for example, a locking protrusion 26 is provided on the upper surface of the covering wall 19 over the entire length in the circumferential direction, and the locking protrusion 26 is provided. Even if the locked portion 25b is not locked to 26 over the entire length in the circumferential direction, it is possible to prevent the lid body 12 from being inadvertently opened due to an increase in the internal pressure of the lid body 12.

Since the locking protrusion 26 is provided on the upper surface of the covering wall 19 on the front side portion located on the opposite side of the hinge 17 that sandwiches the cap shaft O in the radial direction, the lid body is opened after the weakened portion 23 is broken. With the rotation of the 12 around the hinge 17, the locked portion 25b of the lid 12 can be easily attached to and detached from the locking protrusion 26.

Since the expansion recess 10 is formed in the lower end of the peripheral wall 25 of the lid 12 and at least one of the covering walls 19, the lower end opening edge of the peripheral wall 25 of the lid 12 and the upper surface of the covering wall 19 are formed. The gap can be reliably provided between them.

On the upper surface of the covering wall 19, an inclined surface 19b that extends downward as it moves away from the spout 21 side is formed in a portion located outside the spout 21, so that the inside of the lid 12 is as described above. The sucked cooling water can be easily discharged to the outside away from the spout 21 side through the inclined surface 19b.

On the upper surface of the covering wall 19, the portion located on the outside of the spout 21 is a smooth surface over the entire area, so that the inside of the lid 12 is described above as compared with the case where a groove or the like is formed, for example. The cooling water sucked into the water can be easily eliminated.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, the expansion recess 10 may be formed in both the covering wall 19 or the lower end portion of the peripheral wall 25 of the lid 12 and the covering wall 19.
The expansion recess 10 does not have to be formed in the lower end of the peripheral wall 25 of the lid 12 and the covering wall 19.

1 Hinge cap 10 Expansion recess 11 Cap body 12 Cover body 13 Closure body 14 Unplugging body 17 Hinge 19 Covered wall 19b Inclined surface 21 Outlet 23 Weakened part 25 Peripheral wall 25b Locked part 26 Locking protrusion W Container body W1 Mouth

Claims (4)

A cap body having a covering wall covering the mouth of the container body containing the contents and having a spout for pouring the contents into the covering wall.
A ridged tubular lid that is rotatably connected to the cap body via a hinge and covers the spout so as to be openable and closable.
An obstructor that is connected to the opening edge of the spout in the covering wall via a breakable weakening portion and closes the spout.
An unplugging body that connects the lid body and the obstructing body,
Equipped with
The lower end opening edge of the peripheral wall of the lid is in contact with or close to the upper surface of the covering wall.
On the upper surface of the covering wall, a locking protrusion formed on the peripheral wall of the lid body is detachably locked to a front portion located on the opposite side of the hinge that sandwiches the cap shaft in the radial direction. A part is provided,
A vertical gap between the lower end opening edge of the peripheral wall of the lid and the upper surface of the covering wall, which is located between the locking protrusion and the hinge along the circumference of the cap axis. Is provided with a hinge cap. At least one of the peripheral wall of the lid and the covering wall, the lower end of the peripheral wall of the lid is located between the locking protrusion and the hinge along the cap axis. The hinge cap according to claim 1, wherein an expansion recess is formed so that the vertical gap between the opening edge and the upper surface of the covering wall is wider than the others. The hinge cap according to claim 1 or 2, wherein an inclined surface extending downward as the distance from the spout side is formed on a portion of the upper surface of the covering wall located outside the spout. The hinge cap according to any one of claims 1 to 3, wherein the portion of the upper surface of the covering wall located outside the spout is a smooth surface over the entire area.

Images