JP7399585B2 - hinge cap - Google Patents

Description

The present invention relates to a hinged cap that includes a cap body that is attached to the mouth of a container body, and an upper lid that is connected to the cap body via a hinge.

A hinge that includes a cap body that is equipped with a spout barrel for pouring out contents and is attached to the mouth of a container body, and an upper lid that is swingably connected to the cap body via a hinge and that opens and closes the spout barrel. Cap is known. Such a hinge cap constitutes a pouring container by being attached to the mouth after the container body is filled with contents.

Conventionally, such hinge caps have been designed to have an annular rupture section in the cap body that extends around the entire circumference of the inner circumferential surface of the dispensing tube, in order to improve the sealing performance of the dispensing container during its distribution process. In addition to providing a plug body that is connected to There is a known structure in which the spout is pulled upward together with the top lid, whereby the annular breakage portion is broken around the entire circumference, the stopper is held in the top cover, and the spout is opened. (For example, see Patent Document 1).

JP2020-55535A

However, in the above-mentioned conventional hinge cap, when the top lid starts to open, the pulling force is applied almost evenly to the entire circumference of the annular rupture area, so the closure is opened by rupturing the rupture area. The problem was that a relatively large amount of force was required.

It is an object of the present invention to solve these problems, and an object of the present invention is to provide a hinge cap that can be easily broken at a portion to be broken.

The hinged cap of the present invention includes a dispensing tube for dispensing contents, and includes a cap body attached to the mouth of a container body, and a cap body that is swingably connected to the cap body via a hinge, and the dispensing tube is connected to the cap body via a hinge. A hinged cap having an upper lid that opens and closes, a plug body having a through hole and connected to the inner circumferential surface of the spout barrel over the entire circumference via an annular rupture portion, and the plug body. a base portion stacked below the body; a connecting body that is integrally provided with the base portion and projects above the plug body through the through hole; and a connecting body that projects from the base portion toward the portion to be broken. and a fixing body provided on the upper lid and fitted and fixed to the connecting body, and when the upper lid is opened, the portion to be broken is fixed. It is characterized in that the stopper is broken along the entire circumference starting from the portion broken by the blade portion, and the stopper body is held in the upper lid together with the inner stopper.

In the hinge cap of the present invention, in the above configuration, it is preferable that the blade portion is provided facing a region of the scheduled breakage portion on a side opposite to the hinge.

In the hinge cap of the present invention having the above structure, it is preferable that a positioning rib is provided on the lower surface of the base.

In the hinge cap of the present invention, in the above configuration, it is preferable that the plug body is integrally provided with a closing wall disposed between the connecting body and the fixed body.

In the hinge cap of the present invention, in the above configuration, the connecting body has a capped cylindrical shape with a locking protrusion on the outer peripheral surface, and the fixed body has a cylindrical shape that fits on the outside of the connecting body. preferable.

According to the present invention, it is possible to provide a hinge cap that can easily break the intended breakage portion.

FIG. 2 is a sectional view showing a state in which a hinge cap according to an embodiment of the present invention is attached to the mouth of a container body and the lid is closed. FIG. 2 is a cross-sectional view showing an enlarged main part of the hinge cap shown in FIG. 1. FIG. FIG. 3 is a bottom view of the inner stopper shown in FIG. 2; It is a sectional view showing a process of attaching an inner stopper to a stopper body. FIG. 2 is a cross-sectional view of the hinge cap shown in FIG. 1 in a state where the top lid has begun to be opened. FIG. 2 is a sectional view of the hinge cap shown in FIG. 1 in a state where the top cover is opened and the cap is opened. It is a sectional view which expands and shows the principal part of the hinge cap of a modification. It is a sectional view of a state before an inner stopper is attached to a stopper of a hinge cap of a modification.

Hereinafter, a hinge cap 1 according to an embodiment of the present invention will be illustrated in detail with reference to the drawings.

In addition, in this specification and the claims, "upper" means the upper side when the hinge cap 1 is in the upright position shown in FIG. 1, and "lower" means the opposite side. do. Further, the radial direction means a direction perpendicular to the axis O of the hinge cap 1.

As shown in the figure, the hinge cap 1 according to the present embodiment includes a cap body 10 that is attached to the mouth 2a of the container body 2, and an upper lid 30 that is swingably connected to the cap body 10 via a hinge 20. It has The cap body 10, the hinge 20, and the top lid 30 are integrally formed by injection molding of a synthetic resin material.

The container body 2 may be of various configurations or shapes, such as a synthetic resin bottle or a glass bottle, as long as it has an opening 2a and can accommodate the contents.

The cap body 10 includes a top wall 11 disposed so as to cover the upper end opening of the mouth portion 2a, and a mounting wall 12 that extends integrally with the periphery of the top wall 11 and is disposed so as to cover the outer peripheral surface of the mouth portion 2a. have.

An annular seal cylinder 13 is integrally provided on the lower surface of the top wall 11 and is in liquid-tight contact with the inner peripheral surface of the mouth portion 2a over the entire circumference.

The mounting wall 12 is integrally provided with an annular locking projection 14 that projects radially inward. The cap body 10 is held in the opening 2a by the undercut engagement of the locked projection 14 with the locking projection 2b provided on the outer peripheral surface of the opening 2a. That is, in this embodiment, the hinge cap 1 is configured to be attached to the mouth portion 2a by plugging.

Note that the hinge cap 1 may be configured to be attached to the mouth portion 2a by other means such as screw connection instead of being plugged.

A pouring tube 15 for pouring out the contents is integrally provided on the top wall 11. In this embodiment, the pouring tube 15 is provided in a region opposite to the hinge 20 with the axis O of the top wall 11 interposed therebetween. The pouring cylinder 15 has a cylindrical large diameter part 15a connected to the top wall 11, and a cylindrical part having a smaller diameter than the large diameter part 15a, and is integrally formed above the large diameter part 15a via a reduced diameter part 15b. The upper end portion of the small diameter portion 15c is curved toward the outside in the radial direction.

A transition part 40 is provided inside the spouting cylinder 15, and the spouting cylinder 15 is closed by the transition part 40. In this embodiment, the transition portion 40 is provided at the small diameter portion 15c of the spouting tube 15. As shown in FIG. 2, the transition section 40 includes a plug body 50 and an inner plug 60.

The stopper 50 is formed into a disk shape corresponding to the inner circumferential surface of the small diameter portion 15c of the spouting tube 15, and has a through hole 51 extending in the vertical direction at its center. The stopper 50 is connected to the inner circumferential surface of the small diameter portion 15c of the spout tube 15 via an annular breakage portion 52 over the entire circumference. The planned rupture portion 52 has a thin shape that is sufficiently thinner than the stopper 50 and the small diameter portion 15c of the spout tube 15.

The inner stopper 60 has a base portion 61 disposed below the stopper body 50 in an overlapping manner. The base 61 is formed into a disc shape corresponding to the inner circumferential surface of the small diameter portion 15c of the spouting tube 15, and has its upper surface in fluid-tight contact with the lower surface of the stopper 50, and its outer circumferential surface contacts the inner circumferential surface of the small diameter portion 15c. It is fluid-tightly fitted to the circumferential surface. Therefore, the through hole 51 provided in the plug body 50 is closed by the inner plug 60, and the contents inside the container body 2 are prevented from leaking to the outside through the through hole 51 and between the plug body 50 and the inner plug 60. Prevented.

The base 61 is integrally provided with a connecting body 62 that projects upward from the center of the upper surface of the base 61 . In this embodiment, the connecting body 62 is formed into a cylindrical shape with a cap, and projects above the plug 50 through the through hole 51 provided in the plug 50 . On the outer circumferential surface of the portion of the connecting body 62 that protrudes above the plug body 50, a locking protrusion 63 having a sawtooth cross section is divided into two stages, upper and lower, and each extends over the entire circumference of the outer circumferential surface and is integrated. It is provided.

Further, the base portion 61 is integrally provided with a blade portion 64 that protrudes from the base portion 61 toward the scheduled breakage portion 52 . The blade portion 64 is not annular in shape and faces the expected breakage portion 52 over its entire circumference, but is sized to face only a portion thereof. In the present embodiment, the blade portion 64 is provided facing a region of the scheduled breakage portion 52 on the opposite side to the hinge 20 . In particular, it is preferable that the blade portion 64 be provided at a portion of the scheduled rupture portion 52 farthest from the hinge 20 so as to face it within a predetermined range including the portion.

As shown in FIG. 3, a circular recess 65 is provided on the lower surface of the base 61, and a positioning rib 66 is integrally provided inside the recess 65. In this embodiment, the alignment rib 66 is provided extending along the radial direction of the recess 65 from the center side of the recess 65 toward the side where the blade portion 64 of the base 61 is provided.

As shown in FIG. 4, the positioning rib 66 is a positioning groove of a jig 70 that supports the cap body 10 when the inner plug 60 is attached to the plug body 50 provided in the spout tube 15 of the cap body 10. 71 , the inner plug 60 is positioned so that the blade portion 64 faces the region of the expected rupture portion 52 opposite to the hinge 20 (the part of the expected rupture portion 52 furthest from the hinge 20 ). can be positioned relative to the stopper 50.

Note that when attaching the inner stopper 60 to the stopper body 50 using the jig 70, the inner stopper 60 is press-fitted into the inside of the spouting cylinder 15 while the stopper body 50 is pressed from above by the holding jig 72. At the same time, a leak test of the liquid content from the through hole 51 and between the plug body 50 and the inner plug 60 is performed.

The upper lid 30 has a top wall 31 and a peripheral wall 32, and can be closed by covering the spouting tube 15 from above, and can be opened to open the spouting tube 15. A knob 33 used for opening and closing operations is integrally provided on the side of the peripheral wall 32 opposite to the hinge 20. Furthermore, a closing recess 34 is provided on the inner surface of the peripheral wall 32 for undercut engagement with the closing protrusion 16 provided on the cap body 10 to hold the top lid 30 in a closed state.

The upper lid 30 is integrally provided with a fixing body 35 that is fitted and fixed to the connecting body 62. In this embodiment, the fixed body 35 is formed into a cylindrical shape with an inner diameter corresponding to the outer diameter of the connecting body 62, and is fitted onto the outside of the connecting body 62 from above and engages with the inner circumferential surface thereof. It is firmly fixed to the connecting body 62 by the stopper projection 63 biting into it.

In the hinge cap 1 having the above configuration, the spout tube 15 is sealed by the stopper body 50 and the inner stopper 60, so that the sealing performance of the container is improved during the distribution process when it is attached to the mouth portion 2a of the container body 2. be able to.

Furthermore, when the hinge cap 1 having the above configuration is used, by opening the top cover 30 with respect to the cap body 10, the stopper body 50 and the inner stopper 60 can be easily removed from the pouring cylinder 15 and opened. can.

That is, as shown in FIG. 5, when the upper lid 30 is opened with respect to the cap body 10, at the beginning of opening, the inner plug 60 fixedly supported by the upper lid 30 by the fitting between the fixed body 35 and the connecting body 62, While elastically deforming the plug body 50, it moves upward with respect to the cap body 10 together with the upper lid 30, and the blade part 64 breaks a part of the planned breakage part 52. When the top lid 30 is further opened, the scheduled breakage portions 52 are sequentially broken starting from the portion broken by the blade portion 64, and as shown in FIG. 6, when the top cover 30 is completely opened, the scheduled breakage portions 52 are The stopper body 50 is removed from the spout cylinder 15 and held in the upper lid 30 together with the inner stopper 60. As a result, the pouring tube 15 is opened and the contents stored in the container body 2 can be poured out to the outside.

After pouring out the contents stored in the container body 2 from the spout tube 15 to the outside, when the top lid 30 is closed, the stopper 50 and the inner stopper 60 held in the top lid 30 are released inside the spout tube 15. The inner stopper 60 is fitted into the inner stopper 60 and the outer circumference of the base 61 of the inner stopper 60 and the spout cylinder 15 are liquid-tightly closed. Thereby, even after the spouting cylinder 15 is opened, the spouting cylinder 15 can be closed with a high degree of airtightness by closing the upper lid 30.

In this way, in the hinge cap 1 of the present embodiment having the above-mentioned configuration, it is possible to break a part of the scheduled breakage portion 52 by the blade portion 64 provided on the inner plug 60 when the top cover 30 begins to open. The scheduled breakage portion 52 can be easily broken one after another starting from the portion broken by the blade portion 64. Therefore, the force required to break the scheduled breakage portion 52 can be reduced, and the hinge cap 1 can be opened easily.

In addition, in the present embodiment, the blade portion 64 is provided facing the region of the portion to be broken 52 on the opposite side to the hinge 20 (the portion of the portion to be broken 52 furthest from the hinge 20). By increasing the amount of upward movement of the blade portion 64 when the blade portion 30 begins to open, a portion of the portion to be broken 52 can be easily and reliably broken by the blade portion 64.

Furthermore, in this embodiment, since the alignment rib 66 is provided on the lower surface of the base 61 of the inner plug 60, a jig 70 having a positioning groove 71 with which the alignment rib 66 engages is used. By doing so, the inner plug 60 can be attached to a position where the blade portion 64 accurately faces the region of the expected rupture portion 52 opposite to the hinge 20 (the part of the expected rupture portion 52 farthest from the hinge 20).

Furthermore, in the present embodiment, the connecting body 62 provided on the inner stopper 60 is formed into a cylindrical shape with a top having a locking protrusion 63 on the outer peripheral surface, and the fixing body 35 provided on the upper lid 30 is fitted onto the outside of the connecting body 62. Since it has a cylindrical shape that fits, the connecting body 62 can be easily and reliably fitted and fixed to the fixed body 35.

As shown in a modified example in FIG. 7, the plug body 50 may be integrally provided with a closing wall 80 disposed between the connecting body 62 and the fixed body 35. As shown in FIG. 8, in a state before the inner plug 60 is attached to the plug body 50, the closing wall 80 is formed in a cylindrical shape with a cap, and the upper surface of the plug body 50 is located at the periphery of the through hole 51 at the lower end. The through hole 51 is closed integrally with the through hole 51. The peripheral wall portion of the closing wall 80 is thin. When the inner stopper 60 is attached to the stopper body 50, as shown in FIG. The space between the fixed body 35 and the connecting body 62 is sealed by filling the gap, and the fitting between the fixed body 35 and the connecting body 62 is made stronger. The locking protrusion 63 penetrates the closing wall 80 and is locked to the inner circumferential surface of the fixed body 35 .

In this way, by integrally providing the closure wall 80 disposed between the connecting body 62 and the fixed body 35 in the plug body 50, the space between the fixed body 35 and the connecting body 62 is sealed. In addition, the fitting between the fixed body 35 and the connecting body 62 can be made stronger, which further improves the sealing performance of the container during the distribution process when it is attached to the mouth 2a of the container body 2. be able to.

It goes without saying that the present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit thereof.

For example, in the embodiment described above, the blade portion 64 is provided facing the region of the scheduled breakage portion 52 opposite to the hinge 20 (the part of the planned breakage portion 52 furthest from the hinge 20); The position where the blade portion 64 is provided is not limited to the above, and can be changed in various ways. Further, a configuration in which the base portion 61 is provided with a plurality of blade portions 64 may also be adopted.

Furthermore, in the embodiment described above, the connecting body 62 has a cylindrical shape with a cap on its outer peripheral surface and has a locking protrusion 63, and the fixed body 35 has a cylindrical shape that fits on the outside of the connecting body 62. If the structure is such that the connecting body 62 and the fixing body 35 can be fitted and fixed, for example, the fixing body 35 may have a cylindrical shape with a top having a locking protrusion on the outer circumferential surface, and the connecting body 62 can be fixed. Its structure can be changed in various ways, such as having a cylindrical shape that fits on the outside of the body 35.

1 Hinge cap 2 Container main body 2a Mouth part 2b Locking projection 10 Cap main body 11 Top wall 12 Mounting wall 13 Seal cylinder 14 Locked projection 15 Spout cylinder 15a Large diameter part 15b Reduced diameter part 15c Small diameter part 20 Hinge 30 Top lid 31 Top wall 32 Peripheral wall 33 Knob portion 34 Closing recess 35 Fixed body 40 Transition portion 50 Plug 51 Through hole 52 Scheduled breakage portion 60 Inner plug 61 Base 62 Connecting body 63 Locking protrusion 64 Blade portion 65 Recess 66 Positioning rib 70 Fixing Tool 71 Positioning groove 72 Holding jig 80 Closure wall O Axis

Claims (5)

a cap body that is equipped with a spout tube for pouring out the contents and that is attached to the mouth of the container body;
A hinged cap including an upper lid that is swingably connected to the cap main body via a hinge and opens and closes the spouting tube,
a plug body having a through hole and connected to the inner circumferential surface of the pouring tube over the entire circumference via an annular rupture portion;
a base disposed overlappingly below the plug; a connecting body that is integrally provided with the base and projects upwardly through the through hole; an inner plug having a protruding blade portion;
a fixing body provided on the upper lid and fitted and fixed to the connecting body;
When the top lid is opened, the portion to be broken is broken around the entire circumference starting from the portion to be broken by the blade portion, and the plug body is held in the top lid together with the inner plug. A hinged cap that is characterized by: The hinge cap according to claim 1, wherein the blade portion is provided facing a region of the scheduled breakage portion on a side opposite to the hinge. The hinge cap according to claim 2, wherein a lower surface of the base portion is provided with an alignment rib. The hinge cap according to any one of claims 1 to 3, wherein the plug body is integrally provided with a closing wall disposed between the connecting body and the fixed body. According to any one of claims 1 to 4, the connecting body has a capped cylindrical shape with a locking protrusion on the outer peripheral surface, and the fixed body has a cylindrical shape that fits on the outside of the connecting body. hinge cap.

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