JP4500626B2 - Plastic cap - Google Patents

Description

  The present invention relates to a synthetic resin cap that is fitted and fixed to an opening of a container such as a bottle container, and a spout is newly formed by pulling a pull ring disposed in the outer lid of the cap body. The present invention also relates to a synthetic resin cap that has a good gripping property of the pull ring so that a spout can be easily formed.

  A synthetic resin cap provided with a pull ring is applied to a container containing a seasoning such as dressing, mayonnaise or sauce. The cap body mounted in the opening of the container is housed in the outer lid and has a top wall whose cut-out area is defined by a breakable line, a column extending upward from the cut-out area of the top wall, and a column And a pull ring connected to the top surface wall. If you pull the pull ring with your finger, the breakable line is broken and the cutout area is cut off from the top wall to create a discharge opening, through which the seasonings etc. stored in the container can be discharged become.

With regard to such a synthetic resin cap, for example, in Patent Document 1, an inclined portion extending upwardly as the distance from the bent portion is disposed on at least one side of the pair of bent portions provided in the pull ring, and A bottom wall whose cut-out area is defined by a breakable line and a connecting column extending upward from the cut-out area, the pull ring being connected to the cut-out area via the connecting column, and pulling the pull ring causes the break line to A synthetic resin container lid is disclosed that includes a pull ring that is broken and cut away from a bottom wall to create a discharge opening.
In Patent Document 2, the pull ring connected to the bottom wall via the connecting column is formed so as to extend obliquely upward as it is separated from the connecting column, and even if the pull ring has a small diameter, the pull ring is pointed to the highest part of the pull ring. A synthetic resin cap that can be easily applied is disclosed.
JP 2003-72811 A Japanese Utility Model Publication No. 56-49899

However, the conventional synthetic resin cap has the following problems to be solved. In the synthetic resin caps described in Patent Document 1 and Patent Document 2, when the mouth / neck portion of the container is particularly small in diameter and the cap itself is small, it is not always easy to put the finger on the pull ring because the pull ring has a relatively small diameter. There is a problem that a finger once pulled on the pull ring often comes off the pull ring.
In particular, in Patent Document 1, since the height of the column supporting the pull ring is lower than the height of the spout peripheral wall formed around the pull post, there is a problem that the pull spout is deteriorated due to the spout peripheral wall being in the way. there were.
Moreover, since the synthetic resin caps of Patent Documents 1 and 2 are provided so that the tip portion of the pull ring is inclined upward, the dispensing cylinder and the inner ring are made high particularly when applied to highly viscous content liquid. In this case, since the tip portion of the pull ring easily interferes with the inner ring of the outer lid, there is a problem that the pull ring is deformed and the pull-up property of the pull ring is impaired.

  The present invention has been made in view of the above fact, and even when the height of the cap dispensing cylinder and the inner ring is high, a cap made of a synthetic resin excellent in pulling up performance of the pull ring without deforming the pull ring or the inner ring is provided. The purpose is to provide.

The synthetic resin cap according to claim 1, comprising a top body wall and a cap body comprising a peripheral side surface depending from a peripheral edge of the top surface wall and attached to the container opening,
An outer lid attached so as to be openable and closable via a hinge provided on the peripheral side surface of the cap body;
A removal portion for forming a spout that can be removed by an easy-cut groove formed in the top wall;
A pull ring attached to one end side of the removal portion for forming the spout via a support and for breaking the easy-cut groove;
A pour tube that extends upward from the outside of the easy-cut groove on the outer surface of the top wall;
An inner ring formed in the outer lid and locked to the inner surface of the dispensing cylinder;
In the synthetic resin cap with
The support column that fixes and supports the base end of the pull ring is formed on the hinge portion side outer periphery of the removal portion for forming the spout, and the upper end portion of the support column protrudes upward from the pouring tube disposed in the vicinity thereof. In addition, the pull ring is disposed above the front end portion of the pull ring facing the support column, and the front end portion of the pull ring is not connected to the inner ring that is inside the open / close turning trajectory of the inner ring far from the hinge portion side. It is provided at the contact position ,
The pull ring includes an inclined portion inclined downward from the support column side and a horizontal portion extending from the lower end of the inclined portion .

  According to the synthetic resin cap of the present invention, the upper end portion of the column that fixes and supports the base end of the pull ring protrudes upward from the pouring cylinder disposed in the vicinity thereof, and the pull ring is located on the side far from the hinge portion. Since the part of the pull ring is provided in a non-contact position with the inner ring inside the opening / closing turning track of the inner ring, the pull ring can be attached even when the cap dispensing cylinder and the inner ring are high. It is possible to provide a synthetic resin cap that is not deformed, improves the pulling-up property of the pull ring, and is excellent in tearing property of the removal portion for forming the spout.

  Further, according to the synthetic resin cap of the present invention, the pull ring can be composed of an inclined portion inclined downward from the column side and a horizontal portion extending from the lower end of the inclined portion. The hookability can be further improved, and the tip portion of the pull ring can be securely held in the spout peripheral wall.

(Embodiment 1)
The present invention will be described in detail based on specific examples shown in the accompanying drawings. FIG. 1 is a side sectional view of an outer lid of a synthetic resin cap according to Embodiment 1 of the present invention in an opened state, FIG. 2 is a top plan view of an outer lid of the synthetic resin cap in an opened state, and FIG. Is a sectional side view of the synthetic resin cap with the outer lid closed, and FIG. 4 is a plan view of the synthetic resin cap with the outer lid closed.

1 to 4, the synthetic resin cap 10 according to the first embodiment is mounted on an opening of a container such as a bottle, and includes a cap body 11 and an outer lid 12, and a spout formed in the cap body 11. The removal portion 14 is configured to be removable by an easily cut groove 14a formed on the top wall 11a, and can be easily lifted by pulling up the pull ring 15 attached to one end side of the spout formation removal portion 14 via a support column 15a. The cutting groove 14a is broken and the spout 14 'is formed as an opening.
The easy cutting groove 14a has a small thickness in order to easily form a spout 14 'for pouring the content liquid.

The cap body 11 includes a top wall 11a and a peripheral side surface 11b that hangs down from the peripheral edge of the top wall 11a. The cap body 11 is connected to the outer lid 12 via a hinge portion 13 at one end of the peripheral side surface 11b. 12 is opened and closed around the hinge portion 13, and when the outer lid 12 is turned and closed, the top wall 11 a of the cap body 11 is completely covered.
In addition, the connection band 13a is provided in the both ends of the hinge part 13 so that when the outer lid 12 is opened, the opened state of the outer lid 12 is ensured.

On the upper surface side of the top wall 11a, a pouring cylinder 16 for guiding the pouring liquid is formed so as to surround the top wall 11a, and the content liquid poured out from the opened spout 14 ' Guided along the dispensing tube 16.
The dispensing cylinder 16 extends upward from the outside of the easily cut groove 14a on the outer surface of the top wall 11a, and the inner ring 17 is formed so as to protrude from the substantially cylindrical outer lid 12, and is poured when the outer lid is closed. It is configured to be fitted and locked to the lower end side of the inner surface of the outlet cylinder 16.

As shown in FIGS. 1 and 2, the pull ring 15 includes an inclined portion 15b inclined downward from the column 15a side and a horizontal portion 15c extended from the lower end of the inclined portion.
A support column 15a that fixes and supports the base end of the pull ring 15 is formed on the outer periphery of the spout forming portion 14 on the hinge 13 side, and the upper end of the support column 15a is disposed in the vicinity of the support column 15a and has a notch 16a. An open / close turning trajectory that protrudes upward from the upper end of the outlet cylinder 16 and is disposed above a tip portion 15d of the pull ring (a portion that opposes the column), and the tip portion 15d of the pull ring is far from the hinge portion 13 of the inner ring 17. It is located inside 17a and is provided at a position that does not interfere with the inner ring 17 when the outer lid 12 is closed.
In the first embodiment, the inclined portion 15b of the pull ring 15 has a base end connected to the support column 15a and extends downward from the upper end of the support column 15a at an angle of about 5 to 30 degrees. The tip of the inclined portion reaches the vicinity of the center of the cap body 11, and the horizontal portion 15c further extending from the inclined portion 15b has a distance between the tip portion 15d of the pull ring and the inner wall surface of the dispensing tube 16, for example, 1 to 10 mm. They are arranged at intervals.
As a result, a ring having a predetermined inner diameter into which the fingertip can be inserted can be formed inside the pull ring 15 to improve the finger-holding property at the time of opening, and the tip portion 15d of the pull ring can be accommodated in the peripheral wall of the dispensing tube 16. The inner ring 17 can be disposed so as not to interfere with the inner ring 17.

  The outer lid 12 is formed of a top plate 12a and a peripheral side surface 12b extending from the peripheral edge of the top plate 12a. An inner ring 17 for sealing is formed on the inner surface of the top plate 12a. Thus, when the outer lid 12 is closed, the lower end of the inner ring 17 is fitted and adhered to the inner surface of the dispensing cylinder 16, and the easy-cut groove 14a is broken to provide a sealing property after forming the spout. Can be secured. In this case, as shown in FIG. 1, the notch 16 a is formed on the hinge 13 side of the dispensing cylinder 16, so that the height of the dispensing cylinder 16 on the hinge 13 side is lowered. As a result, as shown in FIG. 3, when closing the outer lid 12, the lower end of the inner ring 17 ′ does not interfere with the open / close turning trajectory 17b of the inner ring 17 ′ close to the hinge portion side, and the dispensing cylinder 16 Fits and adheres closely to the inner surface of the plate, ensuring high sealing performance.

  A peripheral projection 11d for locking the outer lid, which is relatively short, is formed on the peripheral portion on the upper surface side of the top wall 11a, and the peripheral edge of the outer lid 12 is fitted to the circumferential projection 11d. A recess 12c is formed. That is, when the outer lid 12 is closed, the circumferential protrusion 11d and the recess 12c are fitted to each other, and thereby the closed state of the outer lid 12 is maintained. Further, an opening tab 12d is provided at the lower end of the peripheral side surface 12b of the outer lid 12 at a portion opposite to the hinge portion 13, so that the outer lid 12 can be easily opened by placing a finger on the opening tab 12d. It has become.

In the synthetic resin cap 10 of the first embodiment, a slit 11c extending downward from the upper end is provided in the middle part of the thickness portion of the peripheral side surface 11b of the cap body 11. The slit 11 c is formed over the entire circumference of the peripheral side surface 11 b of the cap body 11, and includes a first slit portion formed in the hinge portion 13 and a second slit formed in a portion other than the hinge portion 13. The part is formed continuously. The upper part of the peripheral side surface 11b is divided | segmented by the slit 11c which has these slit parts, and it has continued in one in the lower part.
Since the synthetic resin cap 10 is provided with such a slit 11c, the cap body 11 is effectively prevented from being damaged during capping, and the engagement force between the cap body 11 and the container mouth is reduced. In addition, without using a special tool, the synthetic resin cap 10 is pulled downward to tear the slit in the vertical direction and easily remove it from the container mouth of the container Y. It can be done.

  As the synthetic resin used for molding the synthetic resin cap 10, for example, polyethylene, polypropylene, thermoplastic polyester, polyamide, styrene resin, ABS resin and the like having various densities are generally used. The synthetic resin cap of the present embodiment can be manufactured by integral molding such as injection molding and compression molding using such a resin. In addition, the easily breakable portion such as the above-described easy cutting groove 14a can be formed by integral molding, but depending on the case, it can also be formed by post-processing such as cutting.

  As described above, in the synthetic resin cap 10 according to the first embodiment, the upper end portion of the support column 15a that fixes and supports the base end of the pull ring 15 protrudes upward from the pouring cylinder 16 disposed in the vicinity thereof. In addition, since it is provided so as to be disposed above the tip portion 15d of the pull ring, the pull ring 15 has excellent pull-up performance even when the height of the dispensing cylinder 16 is high, and the pull ring tip portion 15d is on the hinge part 13 side. Since the inner ring 17 that is far from the inner ring 17 is provided in a non-contact position with the inner ring inside the open / close turning track 17a, deformation of the tip portion 15d of the pull ring is prevented.

(Embodiment 2)
As the second embodiment of the synthetic resin cap, the inclined portion 15b and the horizontal portion 15c in the shape of the pull ring of the first embodiment may be stepped. That is, a first horizontal portion extending in the horizontal direction along the top wall 11a from the support column 15a and a vertical portion downward from the first horizontal portion are provided, and the lower end of the vertical portion is further stepped in the horizontal direction. It is also possible to provide a second horizontal portion that is extended and formed and is in a horizontal state that is one step lower than the first horizontal portion.

  The synthetic resin cap according to the second embodiment has an increased inner diameter of the pull ring when a finger is pulled into the pull ring and pulls it up. Excellent spoutability at the spout.

FIG. 4 is a side sectional view of the outer lid of the synthetic resin cap of Embodiment 1 in an opened state. FIG. 3 is a top plan view of the synthetic resin cap of Embodiment 1 with the outer lid open. FIG. 3 is a side sectional view of the outer lid of the synthetic resin cap of Embodiment 1 in a closed state. It is a top view of the outer cover of the synthetic resin cap of Embodiment 1 in a closed state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Synthetic resin cap of Embodiment 11 11 Cap body 11a Top wall 11b Peripheral side surface 11c Slit 11d Circumferential protrusion 12 Outer lid 12a Top plate 12b Peripheral side surface 12c Recessed part 12d Opening tab 13 Hinge part 13a Connecting band 14 Spout formation Removing part 14 'Spout 14a Easy cutting groove 15 Pull ring 15a Post 15b Inclined part 15c Horizontal part 15d Pulling tip part 16 Extraction cylinder 16a Notch part 17, 17' Inner ring 17a, 17b Opening / closing swirl track of inner ring Y container

Claims (1)

A cap body comprising a top wall and a peripheral side surface hanging from the periphery of the top wall, and attached to the container opening;
An outer lid attached so as to be openable and closable via a hinge provided on the peripheral side surface of the cap body;
A removal portion for forming a spout that can be removed by an easy-cut groove formed in the top wall;
A pull ring attached to one end side of the removal portion for forming the spout via a support and for breaking the easy-cut groove;
A pour tube that extends upward from the outside of the easy-cut groove on the outer surface of the top wall;
An inner ring formed in the outer lid and locked to the inner surface of the dispensing cylinder;
In the synthetic resin cap with
The support column that fixes and supports the base end of the pull ring is formed on the hinge portion side outer periphery of the removal portion for forming the spout, and the upper end portion of the support column protrudes upward from the pouring tube disposed in the vicinity thereof. In addition, the pull ring is disposed above the front end portion of the pull ring facing the support column, and the front end portion of the pull ring is not connected to the inner ring that is inside the open / close turning trajectory of the inner ring far from the hinge portion side. It is provided at the contact position ,
The said pull ring is a synthetic resin cap characterized by having the inclination part which inclines below from the said support | pillar side, and the horizontal part extended from this inclination part lower end .

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