JP6498005B2 - Hinge cap with improved lid closure - Google Patents

Description

  The present invention relates to a hinge cap composed of a cap body and an upper lid that is attached to a mouth portion of a container filled with a liquid content liquid such as a detergent or a beverage, and more specifically, regardless of the position of a ridge formed on the upper lid. The present invention relates to a hinge cap that improves the opening and closing of the upper lid.

  The hinge cap is widely used as a closure for containers containing liquid seasonings, juices, and various beverages because the cap body and upper lid are connected by a hinge and the upper lid is convenient to open and close. It has been. In many cases, the hinge cap is provided with a collar portion on the upper lid so that the upper lid can be easily opened and closed.

  Also, after fitting the hinge cap to the mouth of the container and filling the contents, sterilization process to inject hot water to the container and the hinge cap, and wash water to remove the attached dirt In the hinge cap, the cleaning water used for cleaning does not enter the container, and the contents after filling are not leaked by impact during transportation. Airtightness is required to do this. On the other hand, when opening the hinge cap, easy opening is required, and it is desirable that the user can open the cap smoothly with a slight force even if the user is weak, such as an elderly person or a child. There is a demand for a hinge cap having a function to perform this, and proposals have been made to satisfy both requirements.

As the prior art, those shown in FIGS. 8 and 9 are known.
The hinge cap 50 shown in FIGS. 8 and 9 has a cap body 55 and an upper lid 51 connected to each other by a hinge 54. The feature of the hinge cap 50 is that when the lid is closed, the lower end of the inner periphery of the upper lid 51 is connected to the lid. The sealing performance is maintained by the engagement with the joint tube portion 56.
On the other hand, a knob 52 is formed on the outer periphery of the lower end of the upper lid 51 on the opposite side of the hinge 54, and the thickness of the peripheral wall becomes thinner than the knob of the other part above the knob 52. A thin wall portion 53 is formed. When the plug is opened, if the knob 52 is pulled upward, the thin wall portion 53 is deformed, so that the engagement between the upper lid 51 and the cap main body is easily released, and the opening is opened. The stopper operation can be easily performed (Patent Document 1).

  In other words, according to the prior art described in Patent Document 1, when the lid is closed, the upper lid and the cap main body are firmly sealed through the engaging portion, and when opening the lid, the upper lid and the cap are lifted by lifting the knob. The main body can be disengaged and the opening operation can be facilitated.

JP 2013-151326 A

  The inventors of the present invention disclosed in Patent Document 1 have a limitation that the object can be achieved only when the knob piece that is the starting point of the opening operation is formed at the lower end of the upper lid. In order to be able to perform the plug operation more easily, it is easy to open the plug even if the knob formed on the upper lid is not only the lower end portion of the upper lid, but also the upper end portion or middle portion of the upper lid. The present invention has been conceived by repeating trial and error by focusing on shapes that can be performed.

  That is, according to the present invention, the hinge cap fitted to the mouth portion of the container containing the liquid contents maintains the conventional sealing property by the engagement state of the cap body and the upper lid when the lid is closed, and when the cap is opened. Even if the flange formed on the outer periphery of the upper lid to assist the opening operation is not only the lower end of the upper lid, but also the upper end of the upper lid, or the middle part thereof, the opening operation can be performed. A hinge cap that can be easily formed is provided.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention,
In a hinge cap in which a cap body and an upper lid projecting from a cap for opening are connected by a hinge so as to be freely opened and closed.
The cap body is composed of a skirt wall that hangs down from the top surface and the periphery of the top surface and is attached to the mouth of the container,
The upper lid is composed of a top plate and a side wall depending from the peripheral edge of the top plate, and the side wall is provided with a hook opening projection on the opposite side surface of the hinge ,
On the top surface of the cap body, an outer engagement wall for closing and fixing the upper lid on the outer side of the pouring tube and the pouring tube is formed,
On the inner peripheral surface of the side wall of the upper lid, an engagement protrusion that is plugged and fixed to the outer engagement wall is formed,
The side wall of the upper lid is formed with at least one or more thin-walled recesses extending in the longitudinal direction adjacent to the collar part on both sides of the collar part ,
The thin-walled recess is formed on the outer surface side of the side wall, extends from the lower end hem of the side wall to the top plate beyond the engagement protrusion,
There are no thin recesses in the axial direction above and below the collar,
The hinge cap with improved shutoff cock properties, wherein the call is provided.

  Moreover, according to this invention, the said thin cap is provided with the said hinge cap by which one pair is formed in the both sides of the collar part of the side wall of the said upper cover.

  In addition, according to the present invention, there is provided the hinge cap in which the thickness of the thin concave portion is formed to be 20% to 65% of the side wall.

  Moreover, according to this invention, the said hinge cap currently formed in the fan shape which the cross-sectional shape of the said thin-walled recessed part expanded outward is provided.

  In addition, according to the present invention, there is provided the hinge cap in which a thin concave portion is further formed on the outer peripheral upper side of the thin concave portion.

  The hinge cap of the present invention can be used as a lid for a container for storing a liquid material, thereby completely preventing the rinse liquid used for cleaning from entering the container in the cleaning process after the container is filled with the liquid material. When opening the lid, if you apply your finger to the heel of the top lid and apply a force upward, the thin concave portions formed on both sides of the heel will expand in the outer diameter direction. Since it becomes easy, resistance at the time of getting over the undercut is reduced, and even an elderly person or a child can easily open the lid to release the airtight state of the cap body and the upper lid.

  In addition, since the hinge cap of the present invention forms a thin concave portion in the vertical direction on both sides of the heel portion, the heel portion may be formed on the side surface opposite to the hinge of the upper lid. The same effect can be achieved regardless of whether it is the upper part, the lower part, or the middle of the upper lid.

It is (a) bottom view, (b) thin part sectional drawing, (c) front view for demonstrating the thin recessed part shape in an example of the hinge cap of this invention. It is sectional drawing which shows the state at the time of opening the state of the hinge cap of this invention, and the way to the closing. It is the top view which shows an example of the formation location of the collar part and thin-walled recessed part in the hinge cap of this invention, and its front view. It is the top view which shows an example of the formation location of the collar part and thin-walled recessed part in the hinge cap of this invention, and its front view. It is the top view which shows an example of the formation location of the collar part and thin-walled recessed part in the hinge cap of this invention, and its front view. It is the top view which shows an example of the formation location of the collar part and thin-walled recessed part in the hinge cap of this invention, and its front view. It is the top view which shows an example of the formation location of the collar part and thin-walled recessed part in the hinge cap of this invention, and its front view. It is a sectional side view of the hinge cap described in patent document 1. It is a top view of the hinge cap described in patent document 1. FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  The hinge cap according to the present invention is a cap body 10 and an upper lid 20 on which an opening collar 23 is protruded, and is connected to a hinge 30 so that the cap body 10 can be freely opened and closed. It is composed of a skirt wall 12 that hangs down from the periphery of the top surface and is attached to the mouth of the container, and the upper lid 20 is composed of a top plate 21 and a side wall 22 that hangs down from the periphery of the top plate, On the side wall, an opening hook 23 projects from the opposite side surface of the hinge. It is well known that the hinge cap has the above structure before the present application.

  In the above-described configuration, on the top surface of the cap body 10, the outer cylinder 13 and an outer engagement wall 19 for closing and fixing the upper lid on the outer side of the outlet cylinder are formed, and the side wall of the upper lid 20 is further formed. An engagement protrusion 25 is formed on the inner peripheral surface of the outer cover 22 to be plugged and fixed to the outer engagement wall. The lower surface of the top plate 21 of the upper lid 20 is in contact with the inner peripheral surface of the dispensing tube 13. An inner ring 24 is formed on the inner surface.

  Further, in the hinge cap, as shown in FIG. 2, a planned opening portion 16 surrounded by an annular fragile line 15 is formed on a closing middle plate 14 provided in the dispensing tube 13, and the opening is planned. In general, a pull ring 18 is erected on a top surface of a portion in contact with the inside of the section through a support column 17 and the pull ring is pulled up and the contents are discharged after opening. As for the sealing performance between the cap body 10 and the upper lid 20 in the closed state when the product is subsequently used by a consumer, the content may leak due to the contact between the inner ring 24 and the dispensing cylinder 13 as described above. It is surely prevented.

  As shown in FIG. 2, the most important configuration in the present invention is that at least one or more thin walls extending in the longitudinal direction on both sides in the circumferential direction of the flange portion 23 protruding from the side wall 22 of the upper lid 20. The recess 2 is formed. In other words, in the present invention, the opening lid 23 may be the upper end, the lower end, or the middle as long as it is the side surface opposite to the hinge of the upper lid. There is an advantage that it is not limited to.

  When opening the top cover of the hinge cap, if you put your fingers on the buttocks and apply force above the top cover, the thin recessed portion 2 will become the starting point of deformation and spread easily in the outer diameter direction. Since the resistance at the time is reduced and the opening force is assisted, there is an effect that even an inexperienced elderly person or a child can easily open the door.

Although the example of the formation location of the collar part 23 and the shape of the thin recessed part 2 was shown in FIG. 3 thru | or 7, it is not limited to this illustrated example.
In FIG. 3, the flange portion 23 is formed at the lower end portion of the side wall 22 of the upper lid 20, and a pair of thin recessed portions 2 are formed on both sides of the flange portion from the lower end hem portion of the upper lid 20 to the top surface. 4, the flange 23 is formed on the middle part of the side wall 22 of the upper lid 20, and FIG. 5 is different from FIG. 5 except that the flange 23 is formed on the upper end of the side wall 22 of the upper lid 20. These are the same as in FIG. FIG. 6 is the same as the shape shown in FIG. 3 except that another pair of thin recesses 2b are formed in the same manner outside the thin recess 2a shown in FIG. In FIG. 7, the thin recessed part 2 is formed in the side wall 22 of the upper cover 20 so that it may be wide in the circumferential direction.

The distance between the concave portion 2 and the flange portion 23, as can be seen from the experimental examples described later, at least one pair of recesses 2, as shown in FIGS. 3-7, the flange portion 23 in the side wall 22 of the upper cover 20 There have been formed, it is important that adjacent to the flange portion 23.

  As long as the shape of the concave portion extends in the vertical direction, there is no particular definition. However, as shown in FIGS. 3 to 7, the cross-sectional shape is expanded outward as seen from above. It is preferably a fan shape, and the side wall 22 is formed so that the thickness of the side wall 22 is notched from the outer surface side, and is formed from the lower end hem portion of the upper lid 20 to the top plate 21.

Next, the thickness of the thin-walled recess 2 is not particularly defined, but according to the experiments by the present inventors, it is preferably 10 to 70% of the thickness of the side wall 22 where the recess 2 is formed, particularly 20 Preferably, it is formed to 65%.
In addition, the number of the thin-walled recesses 2 may be at least one on each side of the flange 23. However, when the two recesses are formed at two locations as shown in FIG. Power improves more.

Next, since the opening force of the upper lid according to shape was measured, the result is shown below.
What was used as a sample is the above-mentioned three shapes (the following sample numbers: 2, 3, and 4), which is a comparison with the current shape (the following sample number: 1).
1: Current shape (conventional hinge cap with no thin-walled recesses),
2: A hinge cap (see FIG. 3) in which a pair of recesses 2a are formed in an adjacent state on both sides of the collar formed at the lower end of the upper lid.
3: A hinge cap (see FIG. 6) in which two pairs of recesses 2a and 2b are formed on both sides of the flange formed at the lower end of the upper lid.
4: In the hinge cap shown in FIG. 6, the thin concave portion 2 is only 2b,

In the measurement of the opening force, all of the hinge caps were used as samples, and the average value (unit: N) was obtained.
For measurement, use a “push-pull gauge (manufactured by Imada Co., Ltd.)”, fix the sample to the automatic measuring instrument, hang a dedicated jig on the buttocks of the hinge cap, and move vertically in the vertical direction at 100 mm / sec The peak value at the time of pulling and opening was recorded.
The results are as shown in the table below.

表に示した結果からも明らかなように、本発明は、薄肉の凹部が形成されていない従来のヒンジキャップに比べて、少ない力で容易に開栓操作を補佐することがわかる。

As is apparent from the results shown in the table, it can be seen that the present invention easily supports the opening operation with a small force compared to the conventional hinge cap in which the thin-walled recess is not formed.

  According to the present invention, in the hinge cap having improved hermeticity after filling the contents, at least one or more thin concave portions extending in the vertical direction are formed on both sides of the flange portion formed on the side wall of the upper lid. In addition, while maintaining the airtightness that can completely prevent the hot water and cleaning water sprayed in the sterilization process and the cleaning process after filling the liquid content from entering the container, When opening the container's hinge cap, it is possible to open the lid without requiring any extra force by simply placing a finger on the buttocks and pulling it upward. It is expected to increase further.

1, 50: Hinge cap 2, 2a, 2b: Thin concave portion 10, 55: Cap body 11: Top surface 12: Skirt wall 13: Dispensing tube
14: Closing plate 15: Weak line 16: Planned opening
17: Prop 18: Pull ring 19: Outer wall
20, 51: Upper lid
21: Top plate 22: Upper lid hanging side wall 23: Buttocks
24: Inner ring 25: Engaging protrusion
30, 54: Hinge 52: Pick piece 53: Thin wall portion 56: Engagement tube portion

Claims (5)

In a hinge cap in which a cap body and an upper lid projecting from a cap for opening are connected by a hinge so as to be freely opened and closed.
The cap body is composed of a skirt wall that hangs down from the top surface and the periphery of the top surface and is attached to the mouth of the container,
The upper lid is composed of a top plate and a side wall depending from the peripheral edge of the top plate, and the side wall is provided with a hook opening projection on the opposite side surface of the hinge ,
On the top surface of the cap body, an outer engagement wall for closing and fixing the upper lid on the outer side of the pouring tube and the pouring tube is formed,
On the inner peripheral surface of the side wall of the upper lid, an engagement protrusion that is plugged and fixed to the outer engagement wall is formed,
The side wall of the upper lid is formed with at least one or more thin-walled recesses extending in the longitudinal direction adjacent to the collar part on both sides of the collar part ,
The thin-walled recess is formed on the outer surface side of the side wall, extends from the lower end hem of the side wall to the top plate beyond the engagement protrusion,
There are no thin recesses in the axial direction above and below the collar,
The hinge cap with improved closing embolic characterized and this.   The hinge cap according to claim 1, wherein a pair of the thin concave portions are formed on both sides of the flange portion of the side wall of the upper lid.   The hinge cap according to claim 1 or 2, wherein the thickness of the thin concave portion is 20% to 65% of the side wall. The hinge cap according to any one of claims 1 to 3 , wherein a cross-sectional shape of the thin-walled concave portion is formed in a fan shape that spreads outward. The hinge cap according to any one of claims 1 to 4 , wherein a thin concave portion is further formed on an outer peripheral upper side of the thin concave portion.

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