JP6576191B2 - Unplug cap - Google Patents

Description

  The present invention relates to a stopper cap that forms a spout for attaching a liquid to the container body, and in particular, forms a thinned weakened portion that defines a planned opening in a partition that seals the inside of the container. The present invention relates to a stopper cap that opens a spout by breaking a weakened portion by pulling up a pull ring erected on a planned portion.

  2. Description of the Related Art Conventionally, in a cap composed of a cap base that is mounted on a container body that contains a content liquid and an upper lid that is openably and closably mounted on the cap base, the container body is placed inside a dispensing tube provided on the cap base. A partition wall to be sealed is connected continuously, and a cut groove is formed in the partition wall to form a thin weakened portion that defines a planned opening portion serving as a spout. Caps that pull up the installed pull ring to open a spout in the partition are well known.

In this way, the stopper cap that pulls up the pull ring and breaks the weakened portion needs to have a certain thickness that the weakened portion does not easily break, in order to keep the seal until it is used, It is required that the pulling force that breaks the weakened portion is reduced to facilitate the plugging.
In particular, since a large force is required in the initial stage of plugging, it has been proposed to deepen the groove of the weakened part near the pull ring support, but the part becomes weak and easily breaks. There was a problem. Therefore, in order to unplug with a relatively weak force, a thin wall piece is provided between the pull ring column and the inner wall of the extraction cylinder, and the partitioning force is concentrated on the thin wall piece by concentrating the tearing force on the thin piece. There has been proposed a pouring tap in which the force required to start the breakage of the weakened portion is reduced (see, for example, Patent Document 1).

JP 2011-11777 A

  However, in the pouring tap described in the above-mentioned Patent Document 1, in order to maintain a stable sealing state even if the plugging at the start of the break that requires a large force is considered, the thinned portion in the weakened portion Since a certain thickness is required as the wall thickness, a large plugging operation force is required until the subsequent cutting, and further improvement has been demanded.

  It is an object of the present invention to solve the above-mentioned problem, not only at the start of unplugging that requires a large force, but also to facilitate the opening operation by reducing the force required for breaking during unplugging, and until opening An object of the present invention is to provide a stopper cap having a weakened portion that can reliably seal the inside of the container.

In order to solve the above-described problems, the present invention provides a plug cap comprising a cap base that is attached to a container body and an upper lid that is openably and closably attached to the cap base. A partition wall that seals the inside of the container main body is connected to the inside of the cylinder, and a plugging portion that forms a planned opening portion serving as a spout is defined by a breakable weakening portion formed by a cutting groove. A pull ring is continuously provided on the upper surface of the unplugging portion via a support column, and the cutting groove has at least a lower groove formed from below the partition wall or an upper groove formed from above, and the upper groove and the lower groove A thin wall portion having a substantially constant thickness is formed, and the thin wall portion is closest to the back surface portion of the column where breakage is started by making the upper groove deepest and the lower groove shallowest in a predetermined range of partition wall around the column. Weakening part The thin portion to the lowest position, shallow upper groove there as a starting point, also lower groove by going deeper and to adopt a configuration, wherein a slope is provided to gradually increase the thin portion.

  As a specific embodiment of the stopper cap, a configuration characterized in that the partition wall is in a mortar shape, a configuration in which a predetermined range around the support column is formed as a flat portion in the mortar-shaped partition wall, and the partition wall is a flat surface The configuration characterized by the shape and the weakened portion outside the predetermined range around the support column adopts a configuration characterized in that the thin portion is at a high position.

  The plug cap of the present invention has a weakening portion that defines a plug portion that forms a planned opening portion serving as a spout, and a cutting groove formed by an upper groove engraved from above the partition and a lower groove engraved from below. A thin part with a certain thickness is formed, and in the weakened part of the predetermined range around the support column, the thinned part closest to the back part of the support where the break starts is made the lowest, and the thin part is started from there. Since the slope to be gradually increased is provided, the angle between the column and the thin part around the column can be reduced, and the pulling force is concentrated, and the weakened part around the column with a small force. Can be broken. In addition, the weakened portion of the partition wall according to the present invention is provided not only with the lower groove but also with the upper groove in addition to the predetermined range around the support column. Can break.

  Furthermore, in order to make it easier to pass a finger through the pull ring and to make it easier to disperse the pressure in the container, the partition wall is often formed in a mortar shape. In such a case, the angle between the support column and the thin part around the support column Since the partition wall around the column is a flat surface and the thin part in the plane is inclined, the angle between the column and the thin wall around the column can be made an acute angle. The weakened part around the column can be broken.

It is a figure which shows the cover state of the stopper cap in Example 1 of this invention, (a) is a cross-sectional side view, (b) is the principal part enlarged view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the open state of the stopper cap in Example 1 of this invention, (a) is a top view, (b) is a perspective view of the principal part. It is a figure which shows the cover state of the stopper cap in Example 2 of this invention, (a) is a cross-sectional side view, (b) is the principal part enlarged view. It is a figure which shows the closed state of the stopper cap in Example 3 of this invention, (a) is a cross-sectional side view, (b) is the principal part enlarged view.

  Next, the stopper cap of this invention is demonstrated with reference to drawings which showed the Example.

  1 and 2, A is a cap base, B is an upper lid connected to the cap base A via a hinge C, and D is a container body.

The cap base A includes an outer cylinder 1 that surrounds the mouth of the container body D, and an engagement ring that is connected to the upper inner peripheral side of the outer cylinder 1 and has a locking protrusion 2 that locks the upper lid B on the outer periphery. 3, an inner cylinder 4 that is continuously connected to the inner peripheral side of the engagement ring 3, a pouring cylinder 6 that is erected on the inner peripheral side of the inner cylinder 4, and an inner edge of the pouring cylinder 6. And a partition wall 7.
In this embodiment, as shown in FIGS. 1A and 1B, the partition wall 7 is formed in a mortar shape as a whole, but a partially flat horizontal portion 7a is formed on the hinge C side. Is formed.

  In the cap base A, the inner periphery of the outer cylinder 1 engages with the outer periphery of the mouth of the container body D, and the outer periphery of the inner cylinder 4 engages with the inner periphery of the mouth of the container body D. It is attached to the container so as to be sandwiched.

  The outer cylinder 1 is formed with a bulging ring 10 that engages with the outer periphery of the mouth of the container body D on the inner peripheral surface, and a connecting piece 12 provided on the opposite side of the hinge C on the outer periphery of the lower end. A plurality of breakable weakening pieces 13 are provided in series with the outer peripheral cylinder portion 11, and an upper lid B is connected to the upper end predetermined position of the outer peripheral cylinder portion 11 via a hinge C. Yes.

In the partition wall 7, a stopper portion 17 that forms a spout for pouring out the contents in the container body D is formed via a weakened portion 19 that is formed thin by a cutting groove 18 so as to be ruptured. .
A support column 21 is erected on the upper surface of the unplugging portion 17 on the hinge C side, and a pull ring 22 is connected to the upper end of the support column 21.

  As shown in FIG. 1B, the cutting groove 18 of the weakened portion 19 includes an upper groove 25 formed on the upper surface of the partition wall 7 and a lower groove 26 formed on the lower surface of the partition wall 7. A thin portion 30 is formed by the lower groove 26.

The thin portion 30 formed in the partition wall 7 by the upper groove 25 and the lower groove 26 varies depending on the resin used and its strength, but its thickness is about 0.1 to 0.3 mm. In this embodiment, The thickness is almost constant.
At the time of unplugging, the depth of the upper groove 25 in the back weakened portion 19a closest to the back side (hinge C side) of the support column 21 that starts breaking first is set to the maximum depth d1, and the starting point is the both side surfaces of the support column 21. By gradually decreasing the depth of the upper groove 25 in the weakened portion 19, the depth of the upper groove 25 in the front weakened portion 19 b closest to the front side (opposite side of the hinge C) of the column 21 is set to the minimum depth d <b> 2. The upper groove 25 is inclined.
Similarly, the depth of the lower groove 26 in the back weakened portion 19a is made shallowest, and the depth of the lower groove 26 in the weakened portion 19 on both sides of the column 21 is gradually increased from that point to the lower groove 26. A slope is formed.

  Thus, as shown in FIG. 1B, in the flat portion 7 a of the partition wall 7, the thin-walled portion 30 is formed with an upward slope around the support column 21 from the back side to the both side surfaces. .

As shown in FIG. 2 (b), in the flat portion 7 a of the partition wall 7, the thin portion 30 of the back weakened portion 19 a that first starts to break is formed at the lowest position, and on both sides of the support column 21, the thin portion The portion 30 is formed with an upward slope that gradually increases, and the thin portion 30 of the front weakened portion 19b is formed at the highest position.
In the present embodiment, the weakened portion 19 other than the periphery of the support column 21 also has the thinnest portion 30 at the highest position, that is, the upper groove 25 is the shallowest and the lower groove 26 is the deepest, similarly to the front weakened portion 19b. However, it is not necessary that the height of the thin-walled portion is only at a high position, and it may be at a central position or a low position, and can be appropriately changed.

  The upper lid B is suspended from the top wall 40, the side peripheral wall 41 suspended from the outer edge of the top wall 40, and the rear surface of the top wall 40. A sealed cylinder 42 that is tightly fitted is provided.

The side peripheral wall 41 is provided with an annular engagement portion 44 that engages with the locking protrusion 2 of the cap base A when the cover is closed and maintains the closed state at the lower part of the inner periphery. Are connected.
On the outer periphery of the side peripheral wall 41 opposite to the hinge C, a knob 45 projects from the lower end.

Next, usage modes and operational effects of this embodiment will be described.
The stopper cap of the present invention is filled with the content liquid in the container body D, and then plugged from above in the closed state, and attached to the container body D.

In the stopper, the mouth of the container body D is attached to the annular groove formed between the inner cylinder 4 and the outer cylinder 1, and the sealing cylinder 42 of the upper lid B is sealed to the dispensing cylinder 6 of the cap base A. A pressing force is applied from above the upper lid B, and the opening of the container body D is fitted between the inner cylinder 4 and the outer cylinder 1 and attached.
In the present embodiment, the cap base A and the container main body D are mounted by a stopper, but the cap base A and the container main body D can be mounted by screwing and screwed.

  When opening the upper lid B, when the knob 45 of the upper lid B is lifted, the lower portion of the side peripheral wall 41 is directed outward, and the engagement between the annular engaging portion 44 and the locking projection 2 is released from that portion. It can be opened easily.

  When using the contents liquid, after opening the upper lid B, the pull ring 22 is put on a finger and pulled upward to break the weakened portion 19, thereby removing the plugging portion 17 and pouring it into the partition wall 7. Open an exit.

In this embodiment, in order to make it easy to put a finger on the pull ring 22 and to disperse the internal pressure in the container, the partition wall 7 is formed in a mortar shape as a whole. The partition wall 7 having the weakened portion 19 formed around the support column 21 of the pull ring 22 is formed with a cutting groove 18 formed of an upper groove 25 engraved from above and a lower groove 26 engraved from below. Since the flat portion 7a is formed, the angle formed between the support column 21 and the flat portion 7a can be made smaller than the angle θ2 formed between the support column 21 and the partition wall 7.
Further, a thin portion 30 formed by the upper groove 25 and the lower groove 26 is formed on the flat portion 7a of the partition wall 7 so as to be inclined, and the thin portion 30 of the back weakened portion 19a is at the lowest position from the back weakened portion 19a. By gradually increasing the position of the thin portion 30, the angle θ <b> 1 formed by the column 21 and the thin portion 30 around the column 21 can be reduced (acute angle), whereby the pulling force is concentrated and the weakened portion 19 can be broken with a small force.
Further, the thin portion 30 around the support column 21 can be easily inclined by increasing the thickness of the partition wall 7, and the thin wall portion 30 around the support column 21 and the support column 21 can be obtained by shortening the range of the inclination as much as possible. Can be made smaller (a sharp angle).
In this embodiment, an upper groove and a lower groove are provided as cutting grooves for the entire partition wall in order to reduce the breaking force. However, in order to obtain the lowest position of the thin portion 30, the lower groove is eliminated and only the upper groove is used. In addition, at the highest position of the thin portion 30, the upper groove can be eliminated and only the lower groove can be provided. By doing so, the inclination | tilt angle of the thin part 30 can be enlarged more.

  Further, in this embodiment, the partition wall 7 around the support column 21 is a flat portion 7a, and since the thin portion 30 of the flat portion 7a is inclined, it can be broken with a weak force first. As a result, air enters the container at a position higher than the mortar-shaped partition wall 7, and splashing due to shaking of the liquid level in the container can be prevented. In particular, when a high-temperature content liquid is stored, the inside of the container is depressurized, and the liquid surface becomes swayed more effectively.

As shown in FIG. 2 (a), in the embodiment of the present invention, the unplugging portion 17 defined by the weakening portion 19 to be broken is a wide cross shape, and by doing so, the degree of tightness of the container is increased. By this, it is possible to easily change the dispensing amount. Moreover, since the stopper part is a cross shape, it can be used by changing the dispensing direction.
In that case, generally the longitudinal direction close to the pulling direction or the weakened portion 19 close thereto is easily broken, and the weakened portion 19 spreading in the lateral direction is hardly broken, but the weakened portion 19 is cut as in this embodiment. Since the groove 18 is deep in the lower groove 26, the upper groove 25 is shallow, and the thin portion 30 is provided at a high position, even the weakened portion 19 spreading in the lateral direction can be broken with a small force.
Further, the stopper cap of the present embodiment can be separated from the container body D and discarded after the container is used.
When the upper lid B is opened and pulled outward, the weakening piece 13 that connects the outer cylinder 1 and the outer cylinder 11 of the cap base A is broken, and the hinge C side of the outer cylinder 11 is pulled away from the outer cylinder 1, When the upper lid B is further pulled upward, the outer cylinder 1 can be easily removed from the mouth of the container body D so as to be turned up from the portion connected to the connecting piece 12.

Next, a second embodiment in which the configuration of the partition wall 7 is changed will be described.
In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and differences will be mainly described.

As shown in FIG. 3, in this embodiment, the predetermined range around the support column 21 is also a mortar-shaped partition wall 7, and the weakened portion 19 in the predetermined range includes the thinned portion 30 of the back weakened portion 19 a that starts breaking. The thin portion 30 is inclined by setting the thin portion 30 to the lowest position and gradually increasing the thin portion 30 with an upward slope.
Further, outside the predetermined range around the support column 21, as in the first embodiment, the thin portion 30 is formed at a high position, that is, the thin portion 30 where the lower groove 26 is deepest and the upper groove 25 is shallowest. .

  As a result, the angle θ3 formed between the column 21 and the thin portion 30 around the column 21 can be made smaller than the angle θ4 when the thin portion 30 is not inclined, and the pulling force is concentrated. The weakened portion 19 around the column 21 can be broken with a small force. Further, the weakened portion 19 outside the predetermined range around the support column 21 can be broken with a small force because the lower portion 26 is deep and the thin portion 30 is maintained at a high position where the upper portion 25 is shallow.

Furthermore, a third embodiment in which the configuration of the partition wall 7 is changed will be described.
In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and differences will be mainly described.

As shown in FIG. 4, the partition wall 7 is entirely planar, and in the weakened portion 19 in a predetermined range around the support column 21, the thinned portion 30 of the back weakened portion 19 a that starts breaking is positioned at the lowest position, and The thin-walled portion 30 is inclined by gradually increasing the thin-walled portion 30 with an upward slope as a starting point.
Further, outside the predetermined range around the support column 21, as in the first embodiment, the thin portion 30 is formed at a high position, that is, the thin portion 30 where the lower groove 26 is deepest and the upper groove 25 is shallowest. .

  As a result, the angle θ5 formed between the column 21 and the thin portion 30 around the column 21 can be made smaller (a sharp angle) than the angle θ6 when the thin portion 30 is not inclined. The pulling force is concentrated and the weakened portion 19 around the support column 21 can be broken with a small force. Further, the weakened portion 19 outside the predetermined range around the support column 21 can be broken with a small force because the lower portion 26 is deep and the thin portion 30 is maintained at a high position where the upper portion 25 is shallow.

  In the first to third embodiments, the cap base A and the upper lid B are connected to each other via a hinge C. However, if the upper lid B can be attached to the cap base A so as to be freely opened and closed, the hinge may be omitted. The configuration of the mounting method of the upper lid and the cap base, such as by screw fitting provided with screw portions that are respectively screwed into the upper lid and the cap base, is not limited to the embodiment described above.

  The stopper cap according to the present invention can maintain a stable sealed state and facilitates the opening operation not only at the start of the stopper that requires a large force, but also by reducing the force during the opening of the stopper. It can be widely used as a cap for a dispensing container that can be used with peace of mind by consumers with weak power such as elderly people.

A Cap base B Upper lid C Hinge D Container body d1 Maximum depth d2 Minimum depth 1 Outer cylinder 2 Locking protrusion 3 Engagement ring 4 Inner cylinder 6 Outlet cylinder 7 Bulkhead 7a Flat part 10 Swelling ring 11 Outer cylinder part 12 connection piece 13 weakening piece 17 plugging part 18 cutting groove 19 weakening part 19a back weakening part 19b front weakening part 21 support 22 pull ring 25 upper groove 26 lower groove 30 thin part 40 top wall 41 side peripheral wall 42 sealing cylinder 44 annular engagement part 45 knob

Claims (5)

In a stopper cap composed of a cap base mounted on the container body and an upper lid mounted on the cap base so as to be freely opened and closed,
A partition wall that seals the inside of the container body is connected to the inside of the extraction cylinder provided on the cap base, and a plugging portion that forms a planned opening portion serving as a spout is formed in the partition wall by a cutting groove. Defined by possible weakening sections,
A pull ring is connected to the upper surface of the unplug part via a support column.
The cutting groove has at least a lower groove engraved from below the partition wall, or an upper groove engraved from above, and a thin portion having a substantially constant thickness is formed by the upper groove and the lower groove ,
For the thin wall part, the upper groove is the deepest and the lower groove is the shallowest in the partition wall in the predetermined range around the support column, and the thinned part of the weakened part closest to the back of the support column where breakage starts is the lowest position. A stopper cap characterized in that the upper groove is shallower and the lower groove is deeper so that the thin part is gradually inclined.   The stopper cap according to claim 1, wherein the partition wall has a mortar shape.   The stopper cap according to claim 2, wherein the partition wall is formed with a predetermined area around the support as a flat portion.   The stopper cap according to claim 1, wherein the partition wall is planar.   The stopper cap according to any one of claims 1 to 4, wherein the weakened portion outside the predetermined range around the support column has a thin portion at a high position.

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