JP2559085Y2 - Hinge cap and its mold - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge cap with a sealing member which is not accidentally opened or opened illegally, and a mold for molding the same.

[0002]

2. Description of the Related Art Conventional examples of hinge caps with a sealing member include those disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-191652 and Japanese Utility Model Laid-Open Publication No. 2-69857.

In the former hinge cap, the sealing member is formed in a belt shape so as to cover not only the finger hook portion of the upper lid (lid) but also the side surface of the upper lid over a wide range. The sealing member is connected to the outer periphery of the lower lid (cap body) via a plurality of point-like connecting portions (connecting portions). The side ends are pulled in the circumferential direction, and the point-like connecting portions are connected one by one. It is designed to be cut and separated from the lower lid.

[0004] The latter hinge cap is formed in a small piece so that the sealing member (cover plate) almost covers only the finger hook portion of the upper lid (lid). The sealing member is connected to the outer periphery of the lower lid (cap body) via a point-like connecting portion (breakable connecting portion).
The point connection part is cut and separated from the lower lid.

[0005]

The former prior art has the following problems. (1) When the coupling method of the container body and the lower lid is screwing, if the side end of the sealing member is pulled in the circumferential direction, the screwing of the container main body and the lower lid may be loosened and the contents may leak. (2) Even when the coupling method between the container body and the lower lid is a concave-convex annular fitting, if the side end of the sealing member is pulled in the circumferential direction, the lower lid turns in the circumferential direction, and the finger hook portion of the upper lid and the container body are May fluctuate, causing a problem (for example, when printing is performed on the surface of the container body corresponding to the position of the finger cover of the upper lid). (3) Since the sealing member is formed in a band shape so as to cover the side surface of the upper lid over a wide area, it is possible to prevent accidental opening of the lid, but it is necessary to provide a transportation path such as a runway or a conveyor when capping the container body. Easy to get caught. (4) Since many point-like connection portions need to be cut when the sealing member is separated from the lower lid, it takes much time and leaves many traces of cutting. (5) Material cost is high because the sealing member is large.
Since the sealing member becomes unnecessary after being cut, it is desirable to make the sealing member as small as possible.

[0006] In the latter prior art, the sealing member has a structure in which the upper end of the sealing member is tilted outward to cut the point-like connection portion, and a small piece so that the sealing member almost covers only the finger hook portion of the upper lid (lid). Although the problems (1) to (5) are unlikely to occur because the sealing member is formed in a shape, the structure is such that the sealing member merely covers the finger hook portion, so that unexpected opening due to a drop impact of the product or the like occurs. It does not prevent the lid from being opened illegally with a sharp object or the like.

SUMMARY OF THE INVENTION Accordingly, the first object of the present invention is to provide a hinge cap with a sealing member that is not accidentally opened or opened illegally, focusing on the above conventional problems. A second object is to provide a molding die for the hinge cap.

[0008]

In order to achieve the first object, the hinge cap of the present invention is formed so as to be fittable to the neck of the container body and has a spout on the ceiling. A lid, an upper lid connected to the lower lid via a hinge part, and a finger hook part protruding at a position opposite to the hinge part; a lower end part standing at a position covering the finger hook part; And a sealing member connected to the outer periphery of the lower lid via a point-like connecting portion, and a plug hanging down from the top wall of the upper lid is fitted into the spout of the lower lid in a sealed state. In the hinge cap, a concave portion is formed in a portion of the outer peripheral surface of the lower lid directly below a finger hook portion of the upper lid, and the point-like connecting portion is provided on a peripheral wall of the concave portion, and the sealing member is A cut is formed and a stop is formed. It is engaged. Also, in this hinge cap, a curved portion is formed on the sealing member so as to form a gap between the upper end portion of the sealing member and the side surface of the upper lid,
It is preferable to provide a vertical rib on the sealing member.

[0009] In order to achieve the second object,
In the mold for forming a hinge cap according to the present invention, the nested recess forming die for forming the recess of the lower lid is provided so as to be slidable in parallel with the moving direction of the mold for forming the lower lid. A slide cavity forming a sealing member together with a forming die is provided so as to be slidable at right angles to a sliding direction of the telescopic concave forming die, and a point-like shape is provided between the telescopic concave forming die and the slide cavity. A jetty forming a connecting portion is provided, and a projecting portion forming a cutout portion is formed. Also,
In this molding die, a through hole is provided in a portion forming a sealing member of a telescopic recess forming type, and a rectangular projection is provided in a portion forming a sealing member of a slide cavity. It is preferable that the hole and the rectangular projection are formed so that the surfaces extending in the sliding direction of the slide cavity come into contact with each other when the mold is matched.

[0010]

[Action] When opening the hinge cap of the present invention,
A finger is put on the upper end of the sealing member, and the sealing member is tilted outward, and the point-like connection portion is cut to be separated from the lower lid.

At this time, since the pulling force of the sealing member acts on the point-like connecting portion in the direction of extension, the point-like connecting portion can be cut off easily. Further, in the hinge cap according to the second aspect, since a curved portion is formed in the sealing member so as to form a gap between the upper end portion of the sealing member and the side surface of the upper lid, a fingertip is inserted into the gap. Thus, the catch on the upper end of the sealing member can be increased. Furthermore, in the hinge cap according to the third aspect, since the sealing member is provided with the vertical rib, the bending of the sealing member when the sealing member is pulled down is reduced, and the pulling force is concentrated on the point-like connection portion. Therefore, the point-like connection portion can be more easily cut.

When the sealing member is separated from the lower lid, the finger hook portion of the upper lid is exposed, so that a finger can be hooked on the finger hook portion to lift the upper lid upward. When the upper lid is lifted upward, the plug of the upper lid comes off and the spout of the lower lid is opened.

[0013] That is, not only cannot the finger hook portion of the upper lid be put on the finger until the sealing member is separated, but also the finger hook portion of the upper lid is locked by the stopper of the sealing member.
It is possible to prevent the upper lid from being illegally opened, and to prevent the lid from being unexpectedly opened due to an impact such as a collision or a drop.

The sealing member is not only required to be formed in a size to cover only the finger hook portion of the upper lid, but also has a cutout portion, so that the amount of resin necessary for molding the sealing member is reduced. Is reduced as compared with the related art, and material cost can be reduced.

Further, in the molding die according to the fourth aspect, a nested recess forming die for forming a recess of the lower lid, a slide cavity for forming a sealing member together with the nested recessed forming die, and a point connection. 2. The hinge cap according to claim 1, which includes a jetty forming a portion and a projecting portion forming a cut-off portion, so that if one set of molding dies of the present invention is used, post-processing is not required. Can be manufactured. Furthermore, in the molding die according to the fifth aspect, the through-hole and the rectangular projection come into contact with surfaces extending in the sliding direction of the slide cavity when the molds are mated. By sliding the slide cavity earlier than the slide cavity and sliding the slide cavity later than the nested recessed mold during mold clamping, deformation and wear of the nested recessed mold and the slide cavity can be prevented. it can.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment will be described with reference to FIGS.

FIG. 1 shows a hinge cap according to a first embodiment, in which 1 is a lower lid, 2 is an upper lid, and 3 is a sealing member.

The lower lid 1 has an outer cylindrical portion 6 hanging down from the peripheral end of the ceiling portion 5 and an inner cylindrical portion 7 shorter than the outer cylindrical portion 6 inside the outer cylindrical portion 6. An inner ring 8 shorter than the tubular portion 7 hangs. An outlet 12 is formed substantially at the center of the ceiling 5, and a nozzle 11 is provided upright around the outlet 12. In addition, a concave portion 13 is formed in an upper portion of the outer peripheral surface of the outer cylindrical portion 6. Inner cylinder 7
A female screw 14 that can be fitted to a male screw 46 formed on the neck 44 of the container body 4 is provided on the inner surface of the container body 4.
The outer diameter of the inner ring 8 is the opening 47 at the tip of the neck 44.
It is finished to fit closely. In addition, at two positions that are 90 degrees in the circumferential direction from the concave portion 13,
A small peripheral wall 9 hangs outside the inner cylindrical portion 7, and a pocket 10 is formed between the inner cylindrical portion 7 and the small peripheral wall 9.
And FIG. 5).

The upper lid 2 is connected to an outer peripheral end of the ceiling 5 of the lower lid 1 via a hinge 27. Also, the upper lid 2 has a side wall portion 23 hanging down from the periphery of the top wall 22,
A finger hanging portion 26 is formed at a lower edge of the side wall portion 23. The finger hook portion 26 projects from a position opposite to the hinge portion 27, that is, a position directly above the concave portion 13 of the lower lid 1. Further, two hinge portions 27 are provided at a slight interval in the circumferential direction, and a reversing plate 28 is provided between the two hinge portions 27 so as to connect the top wall 22 and the outer cylindrical portion 6. Is formed. The upper lid 2 has a plug 24 that fits tightly into the spout 12 from substantially the center of the top wall 22, and a stopper ring 24 further hangs outside the plug 24.
The side wall 23 of the upper lid 2 is formed flush with the outer cylinder 6 of the lower lid 1 except for the finger hook 26.

The sealing member 3 is formed so as to cover only the finger rest 26 of the upper lid 2 and is connected to the peripheral wall of the recess 13 of the lower lid 1 via four point-like connecting portions 16. And, it is erected so that a space is generated between the recess 13. In addition, the sealing member 3 is curved so that the middle part thereof bulges outward (curved portion 15), and the upper end portion stands upright (the knob portion 20). In addition, horizontal plates 19 bent inward are provided on both sides above the bending portion 15, and two of the point-like connection portions 16 are joined to the outer surface of the horizontal plate 19. Further, in the center of the sealing member 3, there is provided a cutout 18 which is notched widely to the lower end, and a stopper 17 is provided on an inner surface of an upper edge of the cutout 18,
Vertical ribs 21 project from both inner surfaces of the cutout portion 18.
The upper end of the vertical rib 21 and the lower end of the stopper 17 are continuous. Further, the knob portion 20 is formed so that the center portion is slightly higher than both sides thereof.

The hinge cap of FIG. 1 shows a state before the upper lid 2 is fitted to the lower lid 1. In order to fit the upper lid 2 to the lower lid 1 and to operate the sealing mechanism, the upper lid 2 must be
If it is pressed so as to cover it, the hinge portion 27 is bent and the plug 24 is fitted into the spout 12, and the space between the lower lid 1 and the upper lid 2 is sealed. When the upper lid 2 covers the lower lid 1, the finger hook 26 protruding from the side wall 23 approaches the inner surface of the sealing member 3 and comes into contact with the upper surface of the stopper 17 so that the sealing member 3 is slightly elastically outward. When the finger hook portion 26 moves to reach the lower surface of the stopper 17, the original shape is restored, and the finger hook portion 26 is locked on the lower surface of the stopper 17. This prevents the upper lid 2 from opening upward. That is, as shown in FIGS. 3 and 4, the finger hook portion 26 is covered by the sealing member 3, and furthermore, there is a gap between the outer peripheral surface of the lower lid 1 and the outer peripheral surface of the upper lid 2 around the finger hook portion 26. And no steps. Therefore, there is no configuration for opening the upper lid 2 at all.

2 to 6 show a container using the hinge cap. Among them, FIGS. 2 to 5 show a state in which the sealing mechanism is working, and FIG. 6 shows a state in which the sealing mechanism is released. Is shown.

In this container, the lower lid 1 of the hinge cap is screwed to the neck 44 of the container body 4. The upper lid 2 is fitted on the lower lid 1, the plug 24 of the upper lid 2 is fitted into the spout 12 of the lower lid 1, and the stopper of the upper lid 2 is provided outside the nozzle portion 11 of the lower lid 1. By providing the ring 25, the sealed state of the lower lid 1 and the upper lid 2 is maintained. Further, the female screw 1 formed in the inner cylinder portion 7 of the lower lid 1
4 and a male screw 46 formed on the neck 44 of the container body 4
Are screwed together, and the inner ring 8 of the lower lid 1 is fitted into the opening 47 of the container main body 4, so that the sealed state between the container main body 4 and the lower lid 1 is maintained.

Further, a projection 45 projecting from the base of the neck 44 of the container body 4 fits into the pocket 10 formed by the small peripheral wall 9, so that unnecessary tightening is prevented. The orientation of the printing surface processed on the body 43 and the direction of the recess 13 are positioned. The lower part of the outer cylinder part 6 of the lower lid 1 and the trunk part 43 of the container body 4
Is formed in a cylindrical shape having substantially the same outer diameter.

When taking out the contents of the container, first, the sealing member 3 is separated from the lower lid 1. At this time, as shown in FIG. 6, if a finger is put on the knob 20 at the upper end of the sealing member 3 and pulled down, the pulling force of the sealing member 3 acts on the point-like connecting portion 16 in the stretching direction. First, the upper point-like connecting portion 16 is broken, and if the lower point-like connecting portion 16 is continuously pulled down or grasped and pulled, the lower point-like connecting portion 16 is also stretched and broken. When the sealing member 3 is pulled down, the center of the knob 20 is slightly higher, and there is a gap between the knob and the side wall 23 of the upper lid 2. It is easy to catch a finger on the upper end. Further, since the vertical ribs 21 are provided on both sides of the cutout 18, the sealing member 3
When pulling down, the bending of the sealing member 3 becomes small, and the pulling force concentrates on the point-like connection portion 16.
6 can be easily cut. Since the sealing member 3 falls outward by this operation, the finger hook portion 26 and the concave portion 13 are exposed. Thus, the user can put his / her finger on the finger hook portion 26 to pull up the upper lid 2 and open the lid. Opening of the upper lid 2 is performed by turning the hinge portion 27 as a fulcrum. When the upper lid 2 is opened, the plug 24 is detached from the spout 12 and the sealed state is released. Can be taken out.

There is a trace of the dot-like connecting portion 16 around the concave portion 13 from which the sealing member 3 has been cut, but since it is not so protruding, a finger is put on the finger hook portion 26 to push up the upper lid 2 and open it. There is no problem at all. If the upper lid 2 is pressed so as to cover the lower lid 1, the resealing is performed by inserting the stopper 24 into the spout 12. At this time, since the lower end of the plug 24 is formed to have a slightly larger diameter than the upper end of the plug 24, when the plug 24 is fitted into the spout 12, resistance is generated between the spout 12 and sealing. The state is maintained.

The structure of the hinge cap according to the present embodiment has been described above. In the hinge cap according to the present embodiment, the finger hook portion 2 of the upper lid 2 is used until the sealing member 3 is separated.
In addition to not being able to put a finger on the cover 6, the finger cover 26 of the upper lid 2 is locked to the stopper 17 of the sealing member 3, thereby preventing the upper lid 2 from being opened illegally. It is also possible to prevent accidental opening of the cover due to an impact such as a collision or a drop. Further, the sealing member 3 is formed not only to have a size to cover only the finger hook portion 26 of the upper lid 2 but also to have a cutout portion 18, so that the amount of resin necessary for molding the sealing member 3 is increased. Is smaller than in the prior art, and material cost can be reduced. Moreover, since the sealing member 3 can be separated from the lower lid by a simple operation of pulling down with a finger, it satisfies both the simplicity in use and the safety of preventing accidental or unauthorized opening of the lid. Can be done.

7 to 12 show a mold for forming the hinge cap. Hereinafter, based on these drawings, the configuration of the main part of the molding die will be described.

This molding die is an injection molding die, and includes a fixed side plate 29 that forms the outer surface of the ceiling 5 of the lower lid 1 and the inner surface of the upper lid 2, the outer cylinder 6 and the outer surface of the upper lid 2. , A slide cavity 32 forming the outer surface of the sealing member 3, a middle core 33 forming the inner surface of the outer tube portion 6, the outer surface of the inner tube portion 7, the inner surface of the ceiling portion 5, and the small peripheral wall 9, A female screw 14 inside the portion 7 and a screw core 34 forming the inner surface of the ceiling portion 5, a telescopic recess forming die 30 forming a concave portion 13 on the outer surface side of the outer cylindrical portion 6, a spout 12 of the lower lid 1. , A slide pin 42 that forms the inside of the plug 24 of the upper lid 2, and a fixed core 41 that forms the outside of the plug 24 of the upper lid 1.

The recess forming die 30 and the spout forming pin 35
The fixed core 41 is fixed to the fixed plate 29, and the slide pins 42 are slidably attached to the fixed plate 29 in the direction of the axis. The slide cavity 32 slides at right angles to the sliding direction of the recess forming die 30 (see FIG. 8), and the cavity 31 and the fixed side plate 29 can be opened (see FIG. 9).
Can be removed from the cavity 31 and the screw core 3
4 can be detached from the middle core 33 by rotating (see FIG. 10).

The recess forming die 30 is formed in a substantially gate-prepared shape, has a rectangular through hole 36 formed in the center, and a frame-shaped edge 37 formed on the outer surface side of the cut end surface. . The edge 37 has a shape in which a part of the thickness of the recess forming die is cut off. Then, the concave portion 13 is formed on the inner surface side of the concave portion forming die 30,
And the vertical ribs 21 project from the inner surface of the sealing member 3 (see FIGS. 11 and 12).

The slide cavity 32 has a concave surface 39 which forms the outer surface of the sealing member 3 as a product forming surface.
A jetty 40 is provided around the periphery thereof so as to intermittently contact the lower part of the recess forming die 30, and the jetty 40 forms a point-like connection portion 16. Further, at the center of the concave surface 39, there is formed a rectangular protrusion 38 which protrudes in a substantially rectangular shape. The rectangular protrusion 38 fits into the through hole 36 of the concave forming die 30, and the tip thereof has a concave portion. The inner surface of the forming die 30 is flush with the inner surface.

FIG. 7 shows a state in which the molding die is clamped, and FIG. 11 is an enlarged view of a main part thereof. In the mold clamping state, the fixed mold plate 30 abuts on the upper surface of the cavity 31, and the periphery of the recess forming mold 30 is
To form the shape of the concave portion 13 of the lower lid 1. A slide cavity 32 is arranged on the outer surface and the side surface of the recess forming die 30, and a mold space for forming the sealing member 3 is held between the recess forming die 30 and the slide cavity 32. And the point-like connection 1
6. A mold space for forming the cutout 18, the stopper 17, and the vertical rib 21 is held. Further, a middle core 33 and a screw core 34 are inserted into the cavity 31, thereby forming the inner surface shape of the outer cylinder 6 and the ceiling 5 of the lower lid 1.

Recess forming die 30 and slide cavity 32
In the combination state, the ridge 40 of the slide cavity 32 abuts around the lower portion of the outer surface of the recess forming die 30, the square protrusion 38 of the slide cavity 32 fits into the through hole 36 of the recess forming die 30, and the square protrusion 38 The tip is flush with the inner surface of the recess forming die 30. That is, the through hole 36 of the recess forming die 30 and the rectangular projection 38 of the slide cavity 32 are formed so as to come into contact with each other when the molds are mated. The space defined by the edge 37 is continuous with the space between the outer surface of the concave forming die 30 and the concave surface 39 of the slide cavity 32. Further, a space is also held between the side surface of the recess forming die 30 and the slide cavity 32, and this space is formed in the shape of the horizontal plate 19.

FIG. 8 shows a state in which the slide cavity 32 is opened. In this opened state, the tip of the slide cavity 32 is detached from the sealing member 3 and the outside of the sealing member 3 is closed. A space is created around the cutout 18. Further, the sliding pin 42 moves upward to prepare for opening the mold between the fixed side plate 29 and the cavity 31. The mold opening is performed after the filled resin is cooled and solidified.

FIG. 9 shows a state in which the cavity 31 is opened with respect to the fixed side plate 29. In this opened state, the molding die is attached to the outer surface of the ceiling 5 of the lower lid 1 and the inner surface of the upper lid 2. A space is generated in the lower lid 1
3, the recess forming die 30 is detached, and the spout forming pin 35 is detached from the spout 12 of the lower lid 1.

FIG. 10 shows a state in which the screw core 34 inside the middle core 33 is lowered while rotating.
2 is an enlarged view of the main part. In this state, in the molding die, the screw core 34 is detached from the inside of the inner cylindrical portion 7 and the lower lid 1
Are held by the middle core 33, and the upper lid 2 is buried in the cavity 31.

Thereafter, although not shown, the middle core 3
The hinge cap is taken out of the middle core 33 and the cavity 31 by the function of the protruding pin or the like provided in 3.

Note that the mold clamping procedure is performed in the reverse order of the above-described mold opening.

As described above, in the hinge cap of this embodiment, the lower lid 1, the upper lid 2, and the sealing member 3 are manufactured in a continuous state using one set of molding dies, and a part of the cavity 31 of the lower lid 1 is formed. Is configured to slide in the radial direction. The structural feature is that, at the center of the recess forming die 30, the through hole 36 of the recess forming die 30 and the rectangular projection 38 of the slide cavity 32 extend in the sliding direction of the slide cavity when the molds are mated. Contact with each other, and
The tip of the concave forming die 30 and the tip of the rectangular projecting portion 38 are to be combined flush. As a result, even if the mold clamping and the mold opening are repeatedly performed, the deformation and the damage of the concave portion forming die 30 do not occur.

Next, a second embodiment will be described with reference to FIGS.

This embodiment is characterized in that the stopper 17 of the sealing member 3 is provided.
The locking range of the finger hook portion 26 of the upper cover 2 and the upper cover 2 is increased.
This is where the lid opening prevention performance has been improved. Further, by forming the shape of the cutout portion 18 of the sealing member 3 into a window shape that is short in the height direction and long in the circumferential direction, the cutout portion 18 is generated by the side contact of the square protrusion 38 and the through hole 36 in the structure of the molding die. The parting line (appearing linearly on the product surface) is formed so as to be inconspicuous at the center of the recess 13.

Next, the structure of the hinge cap according to the present embodiment will be described in detail with reference to FIGS. FIG.
14 is a perspective view showing the hinge cap. FIG. 13 shows a state in which the upper lid is opened, and FIG. 14 shows a state in which the upper lid is closed.

The outer shape and dimensions of the sealing member 3 are the same as those of the first embodiment, but the shape of the cutout portion 18 provided at the center is different from that of the first embodiment. That is, the cutout portion 18 has a shape that is hollowed out when viewed from the front, and has a circumferentially long stopper 17 protruding from the inner surface of the upper end edge of the cutout portion 18. Further, since the cutout portion 18 is formed into a rectangular shape, the sealing member 3 is less likely to bend when the sealing member 3 is pulled down and cut, so that the vertical rib is not required and is not formed. On the other hand, a finger hook portion 26 protruding from the side wall portion 23 of the upper lid 2 is also formed to be long in the circumferential direction, and a large locking width with the stopper 17 is ensured. The other structure is the same as that of the first embodiment, and the description is omitted.

FIG. 15 is a perspective view showing a container using the hinge cap. This figure shows a state where the sealing member 3 of the hinge cap screwed to the neck portion 44 of the container body 4 is separated from the lower lid 1 and then the upper lid 2 is opened. As shown in this figure, the hinge cap from which the sealing member 3 is removed has an effect that the opening / closing operation can be easily performed because the finger cap portion 26 and the concave portion 13 are formed in a wide range.

Next, the configuration of a mold for manufacturing the hinge cap of the second embodiment will be described with reference to FIGS.

The difference from the mold of the first embodiment is that
And the shape of the square projection 38 of the slide cavity 32. That is, the recess forming die 30 is formed in a plate-like shape in which a thin portion formed to form the stopper 17 at a substantially central portion in the vertical direction becomes thinner downward, and the rectangular projecting portion 38 of the slide cavity 32 is formed. Is formed in a shape that is short in the vertical direction and long in the horizontal direction.

FIG. 16 shows a mold clamping state. The rectangular projection 38 is fitted into the window-shaped through hole 36, and the through hole 36 of the recess forming die 30 and the rectangular projection 38 of the slide cavity 32 are separated from each other by the side surfaces extending in the sliding direction of the slide cavity. The tips of the recess forming die 30 and the rectangular projection 38 that are in contact with each other are combined to be flush with each other.

In addition, a mold space is formed around the square protrusion 38 such as the concave surface 39, or the ridge 40 contacts the outer surface of the recess forming die 30 to form the point-like connection portion 16. Is similar to that of the first embodiment.

FIG. 17 shows the mold open state.
The recess forming die 30 is partially thinned to form the stopper 17 on the upper edge of the cutout portion 18, and no concave portion is formed in the recess forming die 30 because no vertical rib is formed. Accordingly, the shape is simplified compared to the mold of the first embodiment.

Next, a third embodiment will be described with reference to FIGS.

The feature of this embodiment is that the finger hook 26 is engaged with the upper edge of the cutout 18 formed in the sealing member 3 and the cutout 18 functions as a stop. In addition, the shape of the cutout 18 is a window shape that is short in the vertical direction and long in the horizontal direction. Since the concave forming die does not need to be subjected to the concave processing for forming the stopper, the durability of the concave forming die is improved.

Next, the structure of the hinge cap of this embodiment will be described in detail with reference to FIGS. FIG.
FIG. 22 is a perspective view showing a container using the hinge cap of the present embodiment. FIGS. 18 to 21 show a state in which the upper cover is closed and the sealing mechanism is working, and FIG. 3 shows a state in which the sealing member is cut off in order to perform the operation.

The outer shape and dimensions of the sealing member 3 are the same as those of the first embodiment, but the shape of the cutout portion 18 provided at the center is different from that of the first embodiment. That is, the cutout 18 has a shape that is hollowed out into a horizontally elongated rectangle, and the vertical width of the cutout 18 is slightly larger than the thickness of the finger hook 26. The standing position of the sealing member 3 is closer to the recess 13 than in the first and second embodiments. The other structure is the same as that of the first embodiment, and the description is omitted.

In order to fit the upper lid 2 to the lower lid 1 and operate the sealing mechanism, the upper lid 2 is pressed so as to cover the lower lid 1 so that the tip of the finger hook portion 26 comes into contact with the inner surface of the sealing member 3. ,
When the sealing member 3 becomes slightly outward, the shape is restored when the finger hook portion 26 reaches the cutout portion 18, and the finger hook portion 26 overlaps the upper end surface of the cut portion 18. When the finger hook portion 26 descends while being in contact with the inner surface of the sealing member 3, the sealing member 3 is made to move outward with a smaller force than in the first and second embodiments to rub the vertical surface. Can be. Therefore, a smooth fitting operation is achieved. Further, since the sealing member 3 gradually becomes outward, the load on the point-like connecting portions 16 is small, and therefore, the number of the point-like connecting portions 16 is reduced by one in comparison with the first and second embodiments. . In other words, as shown in FIG. 22, the point-like connecting portion 16 remaining at the time when the sealing member 3 is pulled down is only the lowermost position, so that the sealing member 3 is easily separated. The method of separating the sealing member 3 and the method of opening and closing the upper lid 2 are the same as those in the first embodiment, and thus the description thereof will be omitted.

Regarding the mold configuration, only the points different from the first and second embodiments will be described, and illustration is omitted. The difference from the first and second embodiments is that the shape of the rectangular projection of the slide cavity is elongated, the shape of the through hole of the recess forming type is also elongated, The upper part of the hole is not provided with a concave portion for forming a stopper, the number of piers for forming the point-like connecting portions 16 is one less, and the piers are formed longer.

While the first to third embodiments have been described above, the following items will be additionally described. (1) The cross-sectional shape of the hinge cap is not limited to a circle,
Oval and other shapes are also possible. (2) A hinge cap having a structure in which an upper lid and a lower lid are combined may be used. (3) The coupling structure between the lower lid and the container body is not limited to the screwing method, but may be a method such as a concave-convex fitting (plugging method).

[0058]

[Effect of the invention] The hinge cap and the molding die of the invention are
The configuration described above has the following effects.

(1) In the hinge cap according to the first aspect, the finger hook portion of the upper lid is covered by the sealing member, and the finger hook portion of the upper lid is locked by the stopper of the sealing member. It is possible not only to prevent the cover from being opened illegally, but also to prevent the cover from being accidentally opened due to an impact such as a collision or a drop.

(2) Further, since no force is applied in the direction in which the lower lid is rotated when the sealing member is cut, even when the hinge cap and the container main body are connected by a screwing method, the hinge cap and the container main body are not connected. Even if the coupling is not loosened, and even if the coupling method of the container main body and the lower lid is a concave-convex annular fitting, the relative position between the finger hook portion of the upper lid and the container main body does not fluctuate, and no trouble occurs.

(3) Further, the sealing member can be formed not only in a size to cover only the finger hook portion of the upper lid, but also because the sealing member is provided with a cut-out portion, a resin necessary for molding the sealing member is provided. The material cost can be reduced by reducing the amount as compared with the conventional case.

(4) In the hinge cap according to the second aspect, the curved portion is formed in the sealing member so as to form a gap between the upper end portion of the sealing member and the side surface of the upper lid.
By inserting a fingertip into the gap, the catch on the upper end of the sealing member can be increased, thereby facilitating the application of force when pulling down the sealing member.

(5) In the hinge cap according to the third aspect, since the vertical rib is provided in the vicinity of the cutout portion of the sealing member, the bending of the sealing member when pulling down the sealing member is reduced, and the pulling down is performed. Since the force concentrates on the point-like connection, the point-like connection can be cut more easily.

(6) A molding die according to claim 4, wherein a nested recess forming die for forming a recess of the lower lid, a slide cavity for forming a sealing member together with the nested recessed forming die,
Since there is provided a jetty forming a point-like connecting portion and a projecting portion forming a cutout portion, if one set of the molding die of the present invention is used, post-processing or the like is not required. In this manner, the hinge cap can be manufactured, and simplification of manufacturing equipment and reduction of die manufacturing cost can be achieved.

(7) In the molding die according to the fifth aspect, since the through hole and the rectangular projection come into contact with each other in the sliding direction of the slide cavity when the molds are matched, the nested recess is formed. The deformation and wear of the mold and the slide cavity can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a hinge cap according to a first embodiment.

FIG. 2 is a perspective view showing a container using the hinge cap of the first embodiment.

FIG. 3 is a perspective view showing a container using the hinge cap of the first embodiment.

FIG. 4 is a longitudinal sectional view showing a container using the hinge cap of the first embodiment.

FIG. 5 is a longitudinal sectional view showing a container using the hinge cap of the first embodiment.

FIG. 6 is a perspective view showing a container using the hinge cap of the first embodiment.

FIG. 7 is a sectional view showing a mold for forming the hinge cap according to the first embodiment.

FIG. 8 is a sectional view showing a molding die for the hinge cap of the first embodiment.

FIG. 9 is a sectional view showing a mold for forming the hinge cap according to the first embodiment.

FIG. 10 is a sectional view showing a mold for forming the hinge cap according to the first embodiment.

FIG. 11 is a perspective view showing a main part of a molding die of the hinge cap according to the first embodiment.

FIG. 12 is an exploded perspective view showing a main part of a molding die of the hinge cap according to the first embodiment.

FIG. 13 is a perspective view showing a hinge cap according to a second embodiment.

FIG. 14 is a perspective view showing a hinge cap according to a second embodiment.

FIG. 15 is a perspective view showing a container using the hinge cap of the second embodiment.

FIG. 16 is a perspective view showing a main part of a mold for forming a hinge cap according to a second embodiment.

FIG. 17 is an exploded perspective view showing a main part of a mold for forming a hinge cap according to a second embodiment.

FIG. 18 is a perspective view showing a container using the hinge cap of the third embodiment.

FIG. 19 is a perspective view showing a container using the hinge cap of the third embodiment.

FIG. 20 is a longitudinal sectional view showing a container using the hinge cap of the third embodiment.

FIG. 21 is a longitudinal sectional view showing a container using the hinge cap of the third embodiment.

FIG. 22 is a perspective view showing a container using the hinge cap of the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower lid 2 Top lid 3 Sealing member 4 Container main body 5 Ceiling part 12 Spout 13 Depression 15 Curved part 16 Point connection part 17 Stop 18 Cut-out part 21 Vertical rib 22 Top wall 24 Plug 26 Finger part 27 Hinge part 30 Depression Forming die 32 Slide cavity 36 Through hole 38 Square protrusion 40 Breakwater

Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location // B29L 31:56

Claims (5)

(57) [Scope of request for utility model registration] 1. A container body is formed so as to be fitted to a neck portion of the container body,
A lower lid provided with a spout on the ceiling, an upper lid connected to the lower lid via a hinge, and a finger hook protruding at a position opposite to the hinge; The lower body is constituted by a sealing member which is erected at a position covering the lower part, and a lower end part is connected to the outer periphery of the lower lid via a point-like connecting part, and the plug body hanging down from the top wall of the upper lid is In the hinge cap fitted in the outlet of the lower lid in a sealed state, a concave portion is formed in a portion of the outer peripheral surface of the lower lid immediately below the finger hook portion of the upper lid, and the point-like connecting portion is formed by the concave portion. A hinged cap provided on the peripheral wall of the sealing member, wherein a cutout is formed in the sealing member and a stopper is formed, and a finger hook portion of the upper lid is locked to the stopper. 2. The hinge cap according to claim 1, wherein a curved portion is formed on the sealing member so as to form a gap between an upper end portion of the sealing member and a side surface of the upper lid. 3. The hinge cap according to claim 1, wherein a vertical rib is provided on the sealing member. 4. A molding die for molding the hinge cap according to claim 1, wherein the nested concave forming die forming the concave portion of the lower lid slides in parallel with the moving direction of the die forming the lower lid. And a slide cavity forming a sealing member together with the telescopic concave forming die is provided so as to be slidable at right angles to a sliding direction of the telescopic concave forming die. A molding die, wherein a ridge forming a point-like connection portion is provided between the slide cavity and a projection portion forming a cutout portion. 5. A through hole is provided in a portion forming a sealing member of a telescopic recess forming type, and a rectangular projecting portion is provided in a portion forming a sealing member of a slide cavity. 5. The molding die according to claim 4, wherein the projecting portion is formed so as to come into contact with surfaces extending in the sliding direction of the slide cavity when the molds are matched.