JPH0568867U - Hinge cap and its mold - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a hinge cap with a sealing member that is not accidentally opened or illicitly opened. [Structure] A lower lid 1 which is formed so as to be fitted to a neck portion of a container body 4 and provided with a spout 12 on a ceiling portion 5, and which is connected to the lower lid 1 through a hinge portion 27. 27
The upper lid 2 in which the finger hook portion 26 is provided at a position opposite to the upper lid 2
And a sealing member 3 which is erected at a position to cover the finger rest portion 26 and whose lower end portion is connected to the outer periphery of the lower lid 1 via a dot-like connecting portion 16, and the upper lid 2 Top wall 22
In the hinge cap in which the plug body 24 hanging from the lower lid 1 is hermetically fitted in the spout 12 of the lower lid 1, it is located right below the finger hook portion 26 of the upper lid 2 on the outer peripheral surface of the lower lid 1. The concave portion 13 is formed in the portion, and the dot-like connection portion 16 is formed.
Is provided on the peripheral wall of the recess 13, and the sealing member 3 is provided with a cut-off portion 18 and a stopper 17.
The finger rest portion 26 of the upper lid 2 is locked to the stopper 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinge cap with a sealing member that is not accidentally opened or illicitly opened, and a molding die thereof.

[0002]

[Prior Art]

 Conventional examples of hinge caps with a sealing member include those disclosed in Japanese Utility Model Publication No. 62-191652 and Japanese Utility Model Publication No. 2-69857.

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

The latter hinge cap is formed in a small piece so that the sealing member (covering plate) almost covers only the finger rest of the upper cover (covering body). In addition, this sealing member is connected to the outer periphery of the lower lid (cap body) via a dot-like connecting portion (breakable connecting portion), and the sealing member is tilted outward to connect the dot-like connecting portion. It is designed to be cut and separated from the lower lid.

[0005]

[Problems to be solved by the device]

 The former conventional technique has the following problems. (1) When the container main body and the lower lid are connected by 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 loosen and the contents may leak. (2) Even if the container body and the lower lid are connected in a concavo-convex annular fit, pulling the side edge of the sealing member in the circumferential direction causes the lower lid to rotate in the circumferential direction, and the finger-holding portion of the upper lid and the container body The relative position of may fluctuate, which may cause trouble (for example, when the surface of the container body is printed in correspondence with the position of the finger-holding part of the top lid). (3) Since the sealing member is formed in a strip 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 possible to transfer it to a runway or conveyor when capping the container body. Easy to get caught in the road. (4) Since it is necessary to cut many point-like connecting parts when the sealing member is separated from the lower lid, it takes time and labor, and many cutting traces remain. (5) Material cost is high due to the large sealing member. It should be noted that the sealing member becomes unnecessary when cut, so we want to make it as small as possible.

In the latter conventional technique, the sealing member has a structure in which the upper end of the sealing member is tilted outward to cut the dot-like connection portion, and the sealing member is small so that it almost covers only the finger rest portion of the upper lid (lid). Since it is formed in the shape of a piece, the problems of (1) to (5) above are unlikely to occur, but since the sealing member has a structure that only covers the finger rest, it is possible to prevent unexpected impacts such as product drop impact. It does not prevent the lid from being opened or the illegal opening with a sharp object.

In view of the above, the first object of the present invention is to provide a hinge cap with a sealing member that will not be accidentally opened or illicitly opened. The second object is to provide a mold for the hinge cap.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned first object, the hinge cap of the present invention is formed so that it can be fitted to the neck of the container body, and has a lower lid with a spout on the ceiling, and a hinge on the lower lid. The upper lid, which is connected via the hinge part, and which has a finger hook projecting at a position opposite to the hinge portion, and an upright position that covers the finger hook, the lower end of which is located on the outer circumference of the lower lid. In a hinge cap, which comprises a sealing member connected through a dot-like connecting portion, and a plug body hanging from a top wall of the upper lid is fitted in a spout of the lower lid in a sealed state, A recess is formed in a portion of the outer peripheral surface of the lower lid that is located directly below the finger rest portion of the upper lid, the dot-shaped connection portion is provided on the peripheral wall of the recess, and a cut portion is formed in the sealing member. A stopper is formed with this, and the finger hook portion of the upper lid is locked to this stopper. Further, in this hinge cap, it is preferable to form a curved portion on the sealing member or to provide a vertical rib on the sealing member so as to form a gap between the upper end of the sealing member and the side surface of the upper lid. ..

Further, in order to achieve the above-mentioned second object, in the molding die of the hinge cap of the present invention, the insert type recess forming mold forming the recess of the lower lid is moved by the moving mold forming the lower lid. A slide cavity that is slidable parallel to the direction and that forms a sealing member together with the telescopic recess forming mold is slidable at a right angle to the sliding direction of the telescopic recess forming mold. Between the telescopic recess forming mold and the slide cavity, a jetty forming a point connection is provided, and a projection forming a cutout is formed. Further, in this molding die, a through hole is provided in a portion forming the sealing member of the insert type recess forming mold, and a square protrusion is provided in a portion forming the sealing member of the slide cavity. It is preferable that the through hole and the rectangular protrusion are formed so that the surfaces extending in the sliding direction of the slide cavity come into contact with each other when the molds are matched.

[0010]

[Action]

 When the hinge cap of the present invention is opened, a finger is put on the upper end of the sealing member and the sealing member is tilted outward, and the point connection is cut and separated from the lower lid.

At this time, the pulling-down force of the sealing member acts on the point-like connecting portion in the extending direction, so that the point-like connecting portion can be easily cut. Further, in the hinge cap according to claim 2, since the sealing member has a curved portion so as to form a space between the upper end of the sealing member and the side surface of the upper lid, the fingertip should be inserted into the space. Therefore, it is possible to greatly catch the upper end of the sealing member. Further, in the hinge cap according to the third aspect, since the sealing member is provided with the vertical ribs, the bending of the sealing member when the sealing member is pulled down becomes small, and the pulling force is concentrated on the dot-like connection portion. Therefore, it is possible to more easily cut the dot-shaped connection portion.

When the sealing member is separated from the lower lid, the finger hook portion of the upper lid is exposed, so that the upper lid can be lifted upward by hooking the finger on the finger rest portion. When the upper lid is lifted up, the stopper of the upper lid is removed and the spout of the lower lid is opened.

That is, it is not possible to put a finger on the finger hook portion of the upper lid until the sealing member is separated, and since the finger hook portion of the upper lid is locked to the stopper of the sealing member, the upper lid is illicit. It is possible to prevent the lid from being opened by accident, and it is also possible to prevent the lid from being opened accidentally due to an impact such as a collision or a drop.

Further, the sealing member not only has to be formed in a size that covers only the finger-holding portion of the upper lid, but also has a cutout portion, so that the amount of resin required to mold the sealing member is large. However, it is less than the conventional one, and the material cost can be reduced.

Further, in the molding die according to the fourth aspect, the insert type recess forming mold for forming the recess of the lower lid, the slide cavity forming the sealing member together with the insert type recess forming mold, and the dot connection. The hinge according to claim 1 does not require post-processing if one set of the molding die of the present invention is used, since it has a jetty that forms a portion and a projection that forms a cutout portion. Caps can be manufactured. Further, in the molding die according to claim 5, since the through hole and the rectangular protrusion contact each other at the surfaces extending in the sliding direction of the slide cavity when the molds are fitted together, the nested recessed portion is formed when the mold is opened. Prevents deformation and wear of the insert recessed mold and slide cavity by sliding the slide cavity earlier than the mold and sliding the slide cavity later than the insert recessed mold when clamping the mold. be able to.

[0016]

【Example】

 First, a first embodiment will be described with reference to FIGS.

FIG. 1 shows a hinge cap of the 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 tubular portion 6 hanging down from a peripheral end of a ceiling portion 5, an inner tubular portion 7 shorter than the outer tubular portion 6 inside thereof, and an inner tubular portion 7 inside thereof. An inner ring 8 that is shorter than the tubular portion 7 hangs down. In addition, a spout 12 is formed substantially in the center of the ceiling 5, and a nozzle 11 is provided upright around the spout 12. A recess 13 is formed on the outer peripheral surface of the outer tubular portion 6. On the inner surface of the inner cylinder portion 7, a female screw 14 that can be fitted to a male screw 46 formed on the neck portion 44 of the container body 4 is provided, and the outer diameter of the inner ring 8 is the opening at the tip of the neck portion 44. The size is such that it fits tightly into the portion 47. A small peripheral wall 9 hangs outside the inner cylindrical portion 7 at two positions that are moved 90 degrees in the circumferential direction from the concave portion 13, and a pocket 10 is provided between the inner cylindrical portion 7 and the small peripheral wall 9. Are formed (see FIGS. 4 and 5).

The upper lid 2 is connected to the outer peripheral end of the ceiling portion 5 of the lower lid 1 via a hinge portion 27. Further, in the upper lid 2, a side wall portion 23 hangs from around the top wall 22, and a finger hook portion 26 is formed at a lower edge of the side wall portion 23. The finger hook portion 26 is provided so as to project at a position opposite to the hinge portion 27, that is, a position directly above the recess 13 of the lower lid 1. Further, the two hinge portions 27 are provided at a slight interval in the circumferential direction, and between the two hinge portions 27, the reversing plate 28 is connected so as to connect the top wall 22 and the outer cylinder portion 6. Are formed. In addition, the upper lid 2 has a plug body 24 that fits tightly into the spout 12 from approximately the center of the top wall 22, and a stopper ring 24 that hangs outside the plug body 24. The side wall portion 23 of the upper lid 2 is formed flush with the outer cylinder portion 6 of the lower lid 1 except for the finger rest portion 26.

The sealing member 3 is formed to have a size that generally covers only the finger rest portion 26 of the upper lid 2, and is provided on the peripheral wall of the recess 13 of the lower lid 1 via four dot-like connecting portions 16. They are connected to each other and are erected so as to form a space between them and the recess 13. Further, the sealing member 3 is curved so that its middle portion bulges outward (curved portion 15), and the upper end thereof rises straight (knob portion 20). Further, lateral plates 19 bent inward are provided on both sides above the curved portion 15, and two of the dot-shaped connecting portions 16 are joined to the outer surface of the lateral plate 19. Further, a cutting portion 18 which is widely cut to the lower end is provided in the central portion of the sealing member 3, and a stopper 17 is provided on the inner surface of the upper edge of the cutting portion 18 so as to project on both inner surfaces of the cutting portion 18. Is provided with a vertical rib 21. 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 such that the central portion thereof is slightly higher than both sides thereof.

Further, the hinge cap of FIG. 1 shows a state before the upper lid 2 is fitted to the lower lid 1. To fit the upper lid 2 to the lower lid 1 and activate the sealing mechanism, press the upper lid 2 so as to cover the lower lid 1, and the hinge portion 27 is bent, and the plug 24 is fitted into the spout 12. 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 portion 26 projecting from the side wall portion 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 elastically moves slightly outward. When the finger hook 26 moves to the lower surface of the stopper 17, the original shape is restored, and the finger hook 26 is locked to 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 rest 26 is covered with the sealing member 3, and moreover, in the periphery thereof, between the outer peripheral surface of the lower lid 1 and the outer peripheral surface of the upper lid 2, It has no gaps or steps. Therefore, the structure for opening the upper lid 2 is completely eliminated.

2 to 6 show a container using the hinge cap, of which 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 onto the neck portion 44 of the container body 4. Then, the upper lid 2 is fitted onto the lower lid 1, the plug body 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 14 formed on the inner cylinder portion 7 of the lower lid 1 and the male screw 46 formed on the neck portion 44 of the container body 4 are screwed together, and the lower lid 1 is fitted into the opening 47 of the container body 4. Since the inner ring 8 is fitted in, the sealed state between the container body 4 and the lower lid 1 is maintained.

Further, the protrusion 45 projecting from the base of the neck portion 44 of the container body 4 fits into the pocket 10 formed by the small peripheral wall 9 to prevent excessive tightening. Thus, the orientation of the concave surface 13 and the printing surface processed on the body portion 43 is positioned. Further, the lower portion of the outer cylinder portion 6 of the lower lid 1 and the body portion 43 of the container body 4 are formed in a cylindrical shape having an outer diameter which is generally equal.

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 portion 20 which is the upper end of the sealing member 3 and is pulled down, the pulling force of the sealing member 3 acts on the dot-shaped connecting portion 16 in the stretching direction. First, the upper dot-shaped connecting portion 16 is broken, and if the lower dot-shaped connecting portion 16 is subsequently pulled down or grasped and pulled, the lower dot-shaped connecting portion 16 is also stretched and broken. When the sealing member 3 is pulled down, the center of the knob portion 20 is slightly higher, and since there is a gap between the sealing member 3 and the side wall portion 23 of the upper lid 2, the fingertip can be inserted into the gap to remove the sealing member 3. It is easy to hook your finger on the upper end. Further, since the vertical ribs 21 are provided on both sides of the excision portion 18, when the sealing member 3 is pulled down, the bending of the sealing member 3 becomes small, and the pulling force is concentrated on the dot-shaped connecting portion 16. Therefore, the dot-shaped connecting portion 16 can be easily cut. This operation causes the sealing member 3 to fall outward, so that the finger rest portion 26 and the concave portion 13 are exposed. As a result, it is possible to open the upper lid 2 by placing the finger on the finger rest portion 26 and pulling up the upper lid 2. The upper lid 2 is opened by rotating around the hinge 27 as a fulcrum, and when the upper lid 2 is opened, the plug body 24 is detached from the spout 12 and the sealed state is released, so that the contents from the spout 12 are removed. Can be taken out.

Around the recess 13 where the sealing member 3 has been cut off, there are traces of the dot-shaped connecting portion 16, but since it does not project so much, a finger is put on the finger rest 26 and the upper lid 2 is pushed up and opened. There is nothing wrong with doing that. The resealing is performed by pressing the upper lid 2 so as to cover the lower lid 1 and inserting the stopper 24 into the spout 12. At this time, since the lower end of the stopper 24 is formed to have a diameter slightly larger than the upper end of the stopper 24, when the stopper 24 is fitted into the spout 12, resistance is generated between the spout 12 and the spout 12. The sealed state is maintained.

The structure of the hinge cap of this embodiment has been described above. However, in the hinge cap of this embodiment, a finger can be put on the finger rest 26 of the upper lid 2 until the sealing member 3 is separated. Not only can it not be done, but since the finger hook portion 26 of the upper lid 2 is locked to the stopper 17 of the sealing member 3, it is possible to prevent the upper lid 2 from being opened improperly, and at the same time, to collide or drop It is also possible to prevent accidental opening of the lid due to impact. Further, since the sealing member 3 is not only formed to have a size that covers only the finger rest portion 26 of the upper lid 2 but also has the cutout portion 18, the amount of resin required to mold the sealing member 3 is large. However, it is smaller than the conventional one, and it is possible to reduce the material cost. Moreover, since the sealing member 3 can be separated from the lower lid by a simple operation of pulling it down with a finger, both the convenience of use and the safety of preventing accidental or unauthorized opening of the lid are achieved. Can be satisfied.

7 to 12 show a molding die for the hinge cap. The configuration of the main part of this molding die will be described below with reference to these drawings.

This molding die is an injection molding die, and includes a fixed side plate 29 that forms the outer surface side of the ceiling 5 of the lower lid 1 and the inner surface side of the upper lid 2, the outer cylindrical portion 6 and the outer surface side of the upper lid 2. , A slide cavity 32 that forms an outer surface of the sealing member 3, an inner surface of the outer tubular portion 6, an outer surface of the inner tubular portion 7, an inner surface of the ceiling portion 5, and a middle core 33 that forms the small peripheral wall 9. A female screw 14 inside the tubular portion 7 and a screw core 34 that forms the inner surface of the ceiling portion 5, a telescopic recess forming die 30 that forms the recess 13 on the outer surface side of the outer tubular portion 6, and a spout for the lower lid 1. 12 includes a spout forming pin 35, a sliding pin 42 forming the inside of the plug body 24 of the upper lid 2, and a fixed core 41 forming the outside of the plug body 24 of the upper lid 1.

The recess forming die 30, the spout forming pin 35 and the fixed side core 41 are fixed to the fixed side plate 29, and the sliding pin 42 is fixed so as to be slidable in the axial direction thereof. It is attached to the side plate 29. Further, the slide cavity 32 slides at a right angle to the sliding direction of the concave shape molding 30 (see FIG. 8), and the cavity 31 and the fixed side plate 29 can be opened (see FIG. 9). 33 can be separated from the cavity 31 and the screw core 34 can be separated from the middle core 33 by rotating (see FIG. 10).

The recess forming die 30 is formed in a substantially gate-like shape, and has a rectangular through hole 36 formed in the center, and a frame-shaped edge portion 37 formed on the outer surface side of the cut end surface thereof. It The edge 37 has a shape in which a part of the thickness of the recess forming mold is cut off. Then, the recess 13 is formed on the inner surface side of the recess forming die 30, and the stoppers 17 and the vertical ribs 21 are projectingly provided on the inner surface side of the sealing member 3 at the edge portion 37 (see FIGS. 11 and 12). ..

The slide cavity 32 has a concave surface 39 that forms the outer surface side of the sealing member 3 as a product forming surface, and a ridge 40 is provided around the concave surface 39 so as to intermittently come into contact with the lower periphery of the recess forming mold 30. The jetty 40 has a structure in which the dot-like connection portion 16 is formed. Further, in the center of the concave surface 39, a rectangular protrusion 38 is formed that protrudes in a substantially rectangular shape. This rectangular protrusion 38 fits into the through hole 36 of the recess forming die 30 and its tip is It is arranged to be flush with the inner surface side of the recess forming mold 30.

FIG. 7 shows a mold clamping state of the molding die, and FIG. 11 is an enlarged view of a main part thereof. In the mold clamping state, the fixed side plate 29 contacts the upper surface of the cavity 31 and the periphery of the recess forming mold 30 contacts the cavity 31 to form the shape of the recess 13 of the lower lid 1 in the mold clamping state. Further, slide cavities 32 are arranged on the outer surface side and the side surface side of the recess forming mold 30, and a mold space for forming the sealing member 3 is held between the recess forming mold 30 and the slide cavity 32. At the same time, the mold space for forming the dot-shaped connection portion 16, the cutout portion 18, the stopper 17, and the vertical rib 21 is held. Further, an inner core 33 and a screw core 34 are inserted inside the cavity 31 to form the inner surface shapes of the outer cylinder portion 6 and the ceiling portion 5 of the lower lid 1.

The combination state of the recess forming die 30 and the slide cavity 32 is such that the jetty 40 of the slide cavity 32 abuts around the lower portion of the outer surface of the recess forming die 30 and the slide cavity 32 is inserted into the through hole 36 of the recess forming die 30. The rectangular protrusion 38 is fitted in, and the tip of the rectangular protrusion 38 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 protrusion 38 of the slide cavity 32 are formed so that the surfaces extending in the sliding direction of the slide cavity 32 come into contact with each other when the die is matched. The space defined by the edge 37 is continuous with the space between the outer surface of the recess forming mold 30 and the concave surface 39 of the slide cavity 32. Further, a space is held between the side surface of the recess forming mold 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, and in this mold opened state, the tip of the slide cavity 32 is separated from the sealing member 3 and the outside of the sealing member 3 is separated from the molding die. A space is generated around the excision portion 18. Further, the sliding pin 42 moves upward to prepare for mold opening between the fixed side plate 29 and the cavity 31. These molds are opened after the filled resin is cooled and solidified.

FIG. 9 shows a state in which the cavity 31 is opened from the fixed side plate 29. In this opened state, the molding die has an outer surface of the ceiling portion 5 of the lower lid 1 and an inner surface of the upper lid 2. At the same time, the recess forming die 30 is detached from the recess 13 of the lower lid 1, and at the same time, 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 rotated and lowered, and FIG. 12 is an enlarged view of a main part thereof. In this state, in the molding die, the screw core 34 is detached from the inner side of the inner cylindrical portion 7, the lower lid 1 is held by the middle core 33, and the upper lid 2 is embedded in the cavity 31.

After that, although not shown, the hinge cap is taken out from the middle core 33 and the cavity 31 by the action of a protruding pin or the like mounted on the middle core 33.

The procedure of mold clamping is performed in the reverse order of the above-mentioned mold opening.

As described above, in the hinge cap of the present embodiment, the lower lid 1, the upper lid 2 and the sealing member 3 are continuously manufactured by one set of molding dies, and a part of the cavity 31 of the lower lid 1 is manufactured. Is a structure that slides in the radial direction. The structural feature is that, in the central portion of the recess forming die 30, the through hole 36 of the recess forming die 30 and the rectangular protrusion 38 of the slide cavity 32 extend in the sliding direction of the slide cavity when the die is matched. The surfaces of the recessed portion forming die 30 and the tips of the rectangular protrusions 38 are flush with each other. As a result, even if the mold clamping and the mold opening are repeated, the recess forming mold 30 is not deformed or damaged.

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

The feature of this embodiment is that the locking range of the stopper 17 of the sealing member 3 and the finger hook portion 26 of the upper lid 2 is increased to improve the lid opening prevention performance of the upper lid 2. Further, by making the shape of the cutout portion 18 of the sealing member 3 short in the height direction and long in the circumferential direction, it is caused by the side contact between the rectangular protrusion 38 and the through hole 36 in the structure of the molding die. A parting line (which appears linearly on the product surface) is formed inconspicuously in the center of the recess 13.

Next, the configuration of the hinge cap of this embodiment will be described in detail with reference to FIGS. 13 and 14. 13 and 14 are perspective views 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 sealing member 3 has the same outer shape and dimensions as those of the first embodiment, but the shape of the cutout portion 18 provided in the central portion is different from that of the first embodiment. That is, the cutout portion 18 has a hollowed-out shape so as to have a rectangular shape when viewed from the front, and a stopper 17 that is long in the circumferential direction is provided on the inner surface side of the upper end of the cutout portion 18 so as to project. There is. Further, since the cutout portion 18 has a hollowed-out 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 necessary and is not formed. On the other hand, the finger hooking portion 26 projectingly provided on 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 secured. The other structure is the same as that of the first embodiment, and the description thereof is omitted.

FIG. 15 is a perspective view showing a container using the hinge cap. This figure shows a state in which, after 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, the upper lid 2 is opened. As shown in this figure, the hinge cap from which the sealing member 3 has been removed has a wide range of the finger-holding portion 26 and the recessed portion 13, so that the opening / closing operation can be easily performed.

Next, a mold structure for manufacturing the hinge cap of the second embodiment will be described with reference to FIGS. 16 and 17.

The difference from the mold of the first embodiment is the shape of the telescopic recess forming mold 30 that forms the recess 13 and the shape of the square protrusion 38 of the slide cavity 32. That is, in the recess-shaped molding 30, the thin portion formed to form the stopper 17 in the substantially central portion in the vertical direction is formed into a plate shape that becomes thinner toward the lower side, and the rectangular protrusion of the slide cavity 32 is formed. The portion 38 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 protrusion 38 is fitted in the window-shaped through hole 36, and the through hole 36 of the recess forming mold 30 and the rectangular protrusion 38 of the slide cavity 32 are formed on the side surfaces extending in the sliding direction of the slide cavity. In contact with each other, the recess forming die 30 and the tips of the rectangular protrusions 38 are flush with each other.

In addition, a mold space is formed around the rectangular protrusion 38 such as the concave surface 39, and the jetty 40 abuts on the outer surface of the recess forming mold 30 to form the dot-like connection portion 16. The structure is similar to that of the first embodiment.

FIG. 17 shows the mold open state. Part of the recess forming die 30 is thin in order to form the stopper 17 on the upper edge of the excision portion 18, and no edge is formed in the recess forming die 30 because no vertical rib is formed. Thus, the shape is simpler than that of the mold of the first embodiment.

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

The feature of this embodiment resides in that the finger hook portion 26 is locked to the upper edge of the cut portion 18 formed in the sealing member 3 and the cut portion 18 functions as a stop. The excision portion 18 has a window shape that is short in the vertical direction and long in the horizontal direction. Since the recess forming mold does not need to be recessed to form the stopper, the durability of the recess forming mold is improved.

Next, the structure of the hinge cap of this embodiment will be described in detail with reference to FIGS. 18 to 22. 18 to 22 are perspective views showing a container using the hinge cap of the present embodiment. FIGS. 18 to 21 show a state in which the upper lid is closed and the sealing mechanism is working, and FIG. The state at the time of cutting off the sealing member in order to open the upper lid is shown.

The sealing member 3 has the same outer shape and dimensions as those of the first embodiment, but the shape of the cutout portion 18 provided in the central portion is different from that of the first embodiment. That is, the cut-out portion 18 has a horizontally hollow rectangular shape, and the vertical width of the cut-out portion 18 is slightly larger than the thickness of the finger rest portion 26. Further, the standing position of the sealing member 3 is closer to the recess 13 than in the first and second embodiments. The rest of the structure is the same as that of the first embodiment, so its explanation is omitted.

In order to fit the upper lid 2 to the lower lid 1 and activate the sealing mechanism, the upper lid 2 is pressed so as to cover the lower lid 1, and the tip of the finger rest 26 contacts the inner surface of the sealing member 3. The sealing member 3 becomes slightly outward and the shape is restored when the finger hook portion 26 reaches the cut portion 18, and the finger hook portion 26 overlaps with the upper end surface of the cut portion 18. When the finger hook portion 26 descends while contacting the inner surface of the sealing member 3, the vertical surface is rubbed, so that the sealing member 3 can be moved outward with less force than in the first and second embodiments. Can be made. Therefore, the fitting operation is smooth. Further, since the sealing member 3 gradually becomes outward, the load on the dot-like connecting portion 16 is small, and therefore, the dot-like connecting portion 16 is successfully reduced by one place as compared with the first and second embodiments. .. That is, as shown in FIG. 22, since the dot-shaped connecting portion 16 that remains when the sealing member 3 is pulled down is only at one lowermost position, the sealing member 3 can be easily separated. The method for separating the sealing member 3 and the method for opening / closing the upper lid 2 are the same as those in the first embodiment, and thus the description thereof is omitted.

Regarding the mold structure, only the points different from those of the first and second embodiments will be described, and illustration thereof will be omitted. The difference from the first and second embodiments is that the shape of the rectangular protrusion of the slide cavity is elongated and the shape of the through hole of the recess forming mold is also elongated. The upper part of the through hole is not provided with a recess for forming a stopper, there is only one jetty for forming the point-like connection portion 16, and the jetty is long.

The first to third embodiments have been described above, but the following matters will be added. (1) The cross-sectional shape of the hinge cap is not limited to a circular shape, but may be an elliptical shape or another shape. (2) It is also possible to use a hinge cap having a structure in which the upper lid and the lower lid are combined. (3) The connecting structure of the lower lid and the container main body is not limited to the screwing method, but may be a method such as concave and convex fitting (capping method).

[0058]

[Effect of the device]

 Since the hinge cap and the molding die of the present invention are configured as described above, they have the following effects.

(1) In the hinge cap according to claim 1, since the finger hook portion of the upper lid is covered with the sealing member and the finger hook portion of the upper lid is locked to the stopper of the sealing member, the upper lid is It is possible to prevent the lid from being opened improperly, and it is also possible to prevent the lid from being opened accidentally 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 if the hinge cap and the container body are screwed together, the hinge cap and the container body are Does not loosen, and even if the container body and the lower lid are connected in a concavo-convex annular shape, the relative position between the finger-holding portion of the upper lid and the container body does not change, and no trouble occurs.

(3) Further, not only can the sealing member be formed in a size to cover only the finger-holding portion of the upper lid, but also the sealing member is provided with a cutout portion, so that the sealing member is made of resin necessary for molding. It is possible to reduce the material cost by reducing the amount as compared with the conventional one.

(4) In the hinge cap according to claim 2, since 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, the gap is formed in the gap. By inserting the fingertip, it is possible to greatly catch the sealing member on the upper end thereof, which makes it easier to apply force when pulling the sealing member down.

(5) In the hinge cap according to claim 3, since the vertical rib is provided in the vicinity of the cut portion of the sealing member, the bending of the sealing member when the sealing member is pulled down becomes small, Since the force is concentrated on the point-shaped connection portion, the point-shaped connection portion can be cut more easily.

(6) According to a fourth aspect of the present invention, there is provided a molding die including: a nest-type recess forming mold that forms a recess of a lower lid; a slide cavity that forms a sealing member together with the nest-type recess forming mold; Since the jetty forming the connecting portion and the projecting portion forming the cutout portion are provided, if one set of the molding die of the present invention is used, post-processing etc. is not required, and it is described in claim 1. Since the hinge cap can be manufactured, the manufacturing equipment can be simplified and the die manufacturing cost can be reduced.

(7) In the molding die according to claim 5, since the through hole and the rectangular protrusion contact each other at the surfaces extending in the sliding direction of the slide cavity when the molds are matched, the nesting concave portion. It is possible to prevent deformation and wear of the forming die and the slide cavity.

[Brief description of drawings]

FIG. 1 is a perspective view showing a hinge cap of 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 vertical sectional view showing a container using the hinge cap of the first embodiment.

FIG. 5 is a vertical 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 cross-sectional view showing a molding die of the hinge cap of the first embodiment.

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

FIG. 9 is a cross-sectional view showing a molding die of the hinge cap of the first embodiment.

FIG. 10 is a cross-sectional view showing a molding die of the hinge cap of the first embodiment.

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

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

FIG. 17 is an exploded perspective view showing a main part of a molding die for 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 vertical sectional view showing a container using the hinge cap according to the third embodiment.

FIG. 21 is a vertical sectional view showing a container using the hinge cap according to 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 Upper lid 3 Sealing member 4 Container body 5 Ceiling portion 12 Pouring outlet 13 Recessed portion 15 Recessed portion 15 Curved portion 16 Point connection portion 17 Stop 18 Cutout portion 21 Vertical rib 22 Top wall 24 Plug body 26 Finger rest portion 27 Hinge portion 30 Recessed portion Molding type 32 Slide cavity 36 Through hole 38 Square protrusion 40 Jetty

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Claims (5)

[Scope of utility model registration request] 1. A container body is formed so that it can be fitted to a neck portion of the container body.
A lower lid having a spout on the ceiling, an upper lid connected to the lower lid via a hinge, and a finger hook projecting at a position opposite to the hinge, and the finger hook A stopper member that is erected at a position that covers the portion and has a lower end portion connected to the outer periphery of the lower lid via a dot-like connecting portion, and a stopper that hangs down from the top wall of the upper lid. In the hinge cap that is hermetically fitted in the spout of the lower lid, a concave portion is formed in a portion of the outer peripheral surface of the lower lid that is located directly below the finger-holding portion of the upper lid, and the dot-shaped connecting portion is the concave portion. A hinge cap, which is provided on a peripheral wall of the sealing member, has a cutout portion formed on the sealing member and a stopper, and a finger hook portion of the upper lid is locked to the stopper. 2. The hinge cap according to claim 1, wherein the sealing member is formed with a curved portion 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 the sealing member is provided with vertical ribs. 4. A molding die for molding the hinge cap according to claim 1, wherein a telescoping recess forming mold forming a recess of the lower lid slides in parallel with a moving direction of the mold forming the lower lid. A slide cavity that is provided so as to form a sealing member together with the telescopic recess forming mold and is slidable at a right angle to the sliding direction of the telescopic recess forming mold. A molding die characterized in that a jetty forming a point-like connection portion is provided between the slide cavity and the slide cavity, and a projection portion forming a cutout portion is formed. 5. A through-hole is provided in a portion forming a sealing member of a telescoping recess forming type, and a square protrusion is provided in a portion forming a sealing member of a slide cavity. The molding die according to claim 4, wherein the protruding portion is formed so that the surfaces extending in the sliding direction of the slide cavity come into contact with each other when the die is matched.