JP5188598B2 - Synthetic resin container lid with pull ring - Google Patents

Description

  The present invention relates to a synthetic resin container lid provided with a pull ring.

  A typical example of a synthetic resin container lid provided with a pull ring is a container lid composed of a container lid body and a crown cap body, which is conveniently used for a container containing a liquid seasoning. A container lid body attached to the mouth / neck portion of a container has a bottom wall in which a cutting area is defined by a breakable line, a connecting column extending upward from the cutting area of the bottom wall, and a bottom wall through the connecting column And a pull ring connected to. The crown cap body is pivotally connected to the container lid body or formed separately from the container lid body, and is selectively positioned in a closed position that covers the bottom wall and the pull ring of the container lid body and an open position that exposes them. It is done. When the crown cap is in the open position and the finger is pulled on the pull ring and pulled, the breakable line is broken and the cutout area is cut off from the bottom wall to create a discharge opening, which is received in the container through the discharge opening. It is possible to discharge the liquid.

  As another example of a synthetic resin container lid provided with a pull ring, a container lid used as a so-called inner plug of a container containing a liquid beverage can be mentioned. The container lid has a circular bottom wall, a cylindrical side wall extending upward from the periphery of the bottom wall, and an annular flange wall extending radially outward from the upper end of the side wall, and the pull ring is connected to the inner surface of the side wall. Has been. In such a container lid, the bottom wall and the side wall are inserted into the mouth and neck of the container, and the flange wall is brought into contact with the upper end surface of the mouth and neck. Then, when the container lid is removed from the mouth and neck, the pull ring may be pulled with a finger on the pull ring.

  Thus, the conventional synthetic resin container lid provided with the pull ring has the following problems to be solved. Particularly when the mouth and neck of the container has a small diameter, and therefore the container lid itself has a small diameter, the pull ring has a considerably small diameter, and it is not always easy to put a finger on the pull ring. As a solution to this problem, in the synthetic resin container lids disclosed in Japanese Utility Model Publication Nos. 56-49899 and 53-129655, a pull ring connected to the bottom wall via a connecting column is used. It is disclosed that the shape extends in an upward direction as the distance from the connecting column increases. When the pull ring is shaped like this, the part located on the diametrically opposite side of the connecting column in the pull ring is the highest, and even if the pull ring has a small diameter, it is somewhat easier to put the finger on the highest part of the pull ring become. However, it is still not fully satisfactory, and it is not uncommon for a finger to be sufficiently inserted into the pull ring, and the finger once hung on the pull ring is often detached from the pull ring.

  The present invention has been made in view of the above-mentioned facts, and the main technical problem thereof is that even when the container lid has a small diameter, and therefore the pull ring has a considerably small diameter, the pull ring is easily and reliably hooked and necessary. Accordingly, it is an object of the present invention to provide a new and improved synthetic resin container lid in which a finger can be inserted through a pull ring.

In the present invention, the pull ring is provided with a pair of bent portions at an angle of approximately 90 degrees on both sides in the circumferential direction from the circumferential center of the connecting column, and on one side of the bent portion, from the bent portion to the diameter direction of the connecting column. As it moves away from the bent part to the opposite side, it gradually inclines upward, and on the other side of the bent part, it is configured to extend horizontally from the bent part to the connecting column, without being disturbed by other parts of the pull ring Make it easy to put your finger on the highest part of the pull ring, and pulling the finger on the pull ring will extend the bend of the pull ring and expand the pull ring to promote finger insertion into the pull ring By doing so, the above technical problem is achieved.

That is, according to the present invention, as a synthetic resin container lid for achieving the above technical problem, a bottom wall in which a cutting area is defined by a breakable line, a connecting column extending upward from the cutting area, and the connection in the synthetic resin container closure having a pull ring coupled to the region preparative該切through the column,
The pull ring is provided with a pair of bent portions arranged at an angle of about 90 degrees from the circumferential center of the connecting column to both sides in the circumferential direction, and the pull ring is bent on one side of the bent portion. Extending from the bent portion to the opposite side of the connecting column in the diametrical direction gradually inclines upward from the bent portion, and horizontally extends from the bent portion to the connecting column on the other side of the bent portion. A synthetic resin container lid is provided.

In a preferred embodiment, two connecting pillars are arranged adjacent to each other in the circumferential direction, and the pull ring extends from one of the connecting pillars to the other of the connecting pillars in a substantially circular shape in a plan view. Preferably, the connecting post is closed and an upper that are allowed branches to a single bottom and fork, substantially circular in plan view to the other from one said pull ring is upper portion which is caused to branch into two of the connecting post It extends to. In another preferred embodiment, a circular bottom wall, a cylindrical side wall extending upward from the periphery of the bottom wall, an annular flange wall extending radially outward from the upper end of the side wall, and an inner surface of the side wall in the synthetic resin container closure having a pull ring that is connected, on the pull ring are spaced an angle of approximately 90 degrees from the circumferential center in the circumferential direction on both sides of the connecting portion between the pull ring and the side wall pair the bent portion of which is disposed, the pull ring extends gradually inclined upward as the distance from the bent portion from the bent portion to the diametrically opposite side of the connecting portion in one side of the bent portion, the it can be allowed to the said connecting part or in water earnestly extending form the bent portion in the other side of the bent portion.

  In the synthetic resin container lid of the present invention, even when the pull ring has a considerably small diameter due to the small diameter of the container lid, the finger is easily and surely hooked, and the finger is inserted through the pull ring as necessary. be able to.

The top view which shows suitable embodiment of the synthetic resin container lid comprised according to this invention with a crown cap part opened. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. The partial slope figure which shows the connection pillar arrange | positioned by the container lid main body of the container lid shown in FIG. 1, and a pull ring. The partial slope figure which expands and shows a part of modification of the synthetic resin container lid comprised according to this invention. The partial slope figure which expands and shows a part of other modification of the synthetic resin container lid comprised according to this invention. The slope view which shows the further another modification of the container lid comprised according to this invention.

  Hereinafter, a preferred embodiment of a synthetic resin container lid constructed according to the present invention will be described in more detail with reference to the accompanying drawings.

  Referring to FIGS. 1 and 2, the entire container lid denoted by reference numeral 2 is integrally formed from a suitable synthetic resin such as polyethylene or polypropylene. The container lid 2 includes a container lid main body 4 and a crown cap portion 6 connected to the container lid main body 4.

  The container lid body 4 has a bottom wall 8 which may be substantially disk-shaped. An outer hanging wall 10 and an inner hanging wall 12 are formed on the lower surface of the bottom wall 8. The outer hanging wall 10 has a substantially cylindrical shape and is suspended downward from the outer peripheral edge of the bottom wall 8. The inner hanging wall 12 is also substantially cylindrical, and is suspended downward from the lower surface of the bottom wall 8 substantially concentrically with the outer hanging wall 10. An annular locking ridge 14 projecting radially inward is formed at the axially central portion of the inner peripheral surface of the outer hanging wall 10. The lower part of the outer peripheral surface of the inner hanging wall 12 has an arc shape in the sectional view, and the outer diameter is gradually reduced downward.

  An annular locking wall 16 is formed on the upper surface of the bottom wall 8. The locking wall 16 has a substantially cylindrical shape extending upward from the outer peripheral edge on the upper surface of the bottom wall 8, and an annular locking ridge 18 protruding radially outward is formed at the upper end of the outer peripheral surface. An extraction guide wall 20 is also formed on the upper surface of the bottom wall 8. The pouring guide wall 20 shown in the figure has a substantially cylindrical shape extending upward from the upper surface of the bottom wall 8 and its upper end is curved outward in the radial direction. It is also possible to cut out the upper end of the region. The dispensing guide wall 20 is not concentric with the locking wall 16 and is displaced slightly to the left in FIGS. 1 and 2 with respect to the locking wall 16. The locking wall 16 is relatively low, the dispensing guide wall 20 is relatively high, and the dispensing guide wall 20 is extended upward beyond the locking wall 16.

  In the illustrated embodiment, a cutout area 24 is defined in the bottom wall 8 by a breakable line 22. The breakable line 22 extends in a substantially circular shape on the inner side in the radial direction from the inner hanging wall 12 and the extraction guide wall 20, and can be constituted by a so-called score in which the thickness of the bottom wall 8 is reduced. A pull ring 28 is connected to the cutout region 24 via a connecting column 26 that extends substantially vertically from the periphery of the upper surface thereof.

Referring to FIG. 3 together with FIGS. 1 and 2, the connecting column 26 is substantially arcuate in FIG. 1 (ie, a plan view), and the pull ring 28 is substantially circular in FIG. 1 (ie, the plan view). It extends to. The pull ring 28 is provided with a pair of bent portions 30 at an angle of approximately 90 degrees from the circumferential center of the connecting column 26 to both sides in the circumferential direction, and on one side of the bent portion from the bent portion to the connecting column. An inclined portion 32 that extends gradually upward as it moves away from the bent portion to the opposite side in the diameter direction is disposed, and a horizontal portion 34 that extends horizontally from the bent portion to the connecting column is disposed on the other side of the bent portion . This is very important. In the illustrated embodiment, inclined slope portion 32 Ru Tei inclined at an angle of approximately 20 degrees to the horizontal. The portion of the pull ring 28 located on the opposite side in the diametrical direction with respect to the connecting column 26 is shown in FIG. 2 in a state where the cap 6 exposes the bottom wall 8 of the container lid body 4, the connecting column 26 and the pull ring 28. As indicated by the solid line, the crown cap 6 is indicated by a two-dot chain line in FIG. 2 that is located above the upper end of the extraction guide wall 20 (the portion located on the diametrically opposite side of the connecting column 26 in the pull ring 28). In the state of being positioned at the closed position, the cap 6 is elastically displaced to a position indicated by a two-dot chain line in FIG.

  1 and FIG. 2, the crown cap portion 6 hangs down from the circular top surface wall 36 and the periphery of the top surface wall 36 (that is, the closed position indicated by the two-dot chain line in FIG. 2). And a cylindrical skirt wall 38 extending downwardly from the periphery of the top wall 36 when positioned at the top. The crown cap portion 6 is further formed with a cylindrical seal wall 40 that extends downward from the inner surface of the top wall 36. The seal wall 40 is not concentric with the skirt wall 38, and is slightly displaced to the right with respect to the skirt wall 38 in FIGS. 1 and 2 (the closed position in which the cap 6 is indicated by a two-dot chain line in FIG. 2). The skirt wall 38 is positioned concentrically with the locking wall 16 of the container lid body 4 and the seal wall 40 is positioned concentrically with the dispensing guide wall 20 of the container lid body 4). The outer peripheral surface of the seal wall 40 has an inverted truncated cone shape whose outer diameter gradually decreases toward the extending end. An annular locking groove 42 is formed at the lower end of the inner peripheral surface of the skirt wall 38. Such a cap 6 is connected to the container lid body 4 via a pivot connecting portion 44 which may be in a known form. The swivel connecting portion 44 is disposed between the outer peripheral surface of the bottom wall 8 of the container lid body 4 and the lower end of the outer peripheral surface of the skirt wall 38 of the crown cap portion 6. The crown cap portion 6 is also formed with a protruding piece 46 that protrudes radially outward from the lower end of the outer peripheral surface of the skirt wall 38 on the diametrically opposite side of the swivel connecting portion 44.

  FIG. 2 also shows the mouth / neck portion 48 of the container to which the container lid 2 is applied. The mouth / neck portion 48 of the container, which can be formed from a suitable synthetic resin such as glass or polyethylene terephthalate, has a substantially cylindrical shape, and an annular locking jaw portion 50 protruding radially outward is formed at the upper end of the outer peripheral surface thereof. Is formed. As clearly shown in FIG. 2, the container lid body 4 is attached to the mouth / neck part 48 by receiving the upper end of the mouth / neck part 48 of the container between the outer hanging wall 10 and the inner hanging wall 12. The locking protrusion 14 formed on the inner peripheral surface of the outer hanging wall 10 is locked below the locking jaw portion 50 of the mouth / neck portion 48, whereby the container lid main body portion 4 is engaged with the mouth / neck portion 48. Stopped. The upper end surface of the mouth and neck part 48 is brought into close contact with the lower surface of the bottom wall 8 between the inner hanging wall 12 and the outer hanging wall 10, thereby sealing the mouth and neck part 48. When the cap 6 is positioned at the closed position, a locking groove 42 formed on the inner peripheral surface of the skirt wall 38 is formed on the outer peripheral surface of the locking wall 16 of the container lid body 4. The crown 18 is locked to the strip 18, and the crown 6 is locked to the closed position indicated by the two-dot chain line. The outer peripheral surface of the seal wall 40 of the crown cap body 6 is brought into close contact with the upper part of the inner peripheral surface of the dispensing guide wall 20 of the container lid body 4.

  When discharging the liquid contained in the container, if the crown 6 is swung from the closed position indicated by the two-dot chain line to the open position indicated by the solid line, the pull ring 28 is moved from the position indicated by the two-dot chain line to the solid line. It is elastically restored to the position shown. Next, the pull ring 28 is hooked and pulled to break the breakable line 22 formed on the bottom wall 8. The pull ring 28 is provided with a pair of bent portions 30, and on one side (opposite to the connecting column 26) there is an inclined portion 32 that gradually extends upward as the distance from the bent portion 30 increases. Even in the case of a relatively small diameter, the finger can be easily put on the inclined portion 32 of the pull ring 28. When the pull ring 28 is pulled and pulled, in addition to the pull ring 28 itself being stretched, the bent portion 30 is linearly deformed, whereby the inner diameter of the pull ring 28 is increased. Even when the inner diameter is relatively small, a finger can be inserted into the pull ring 28 with sufficient ease. When the breakable line 22 formed in the bottom wall 8 is broken, the cut region 24 of the bottom wall 8 together with the pull ring 28 and the connecting column 26 is separated from the container lid body 4, and a discharge opening is generated in the bottom wall 8. The After that, the liquid can be discharged through the discharge opening by tilting the entire container. When the dispensing of the required amount of liquid is completed, the cap 6 is turned to the closed position indicated by the two-dot chain line. As a result, the inner surface of the top wall 36 of the cap 6 is brought into contact with the portion of the pull ring 28 that is located on the opposite side of the connecting column 26 in the diametrical direction. It is displaced elastically to the position indicated by the chain line. At the same time, the outer peripheral surface of the seal wall 40 of the crown cap portion 6 is brought into close contact with the upper part of the inner peripheral surface of the dispensing guide wall 20 of the container lid main body 4, and the mouth and neck portion 48 of the container is temporarily sealed.

FIG. 4 illustrates a portion of a variation of a container lid constructed in accordance with the present invention. In this modification, two connecting columns 126 for connecting the pull ring 128 to the bottom wall 108 are disposed at a slight interval in the circumferential direction, and the pull ring 128 has one upper end portion of the connecting column 126. To the other upper end of the connecting column 126 in a plan view. Further, on one side of the pair of bent portions 130 formed on the pull ring 128 (diameter opposite side with respect to the connecting column 126), an inclined portion 132 that is gradually inclined upward as the distance from the bent portion 130 is increased. and which, at the other side of the pair of bent portions 130 there is a horizontal portion 127 extending contact post 126 until in water earnestly from the bent portion 130. 4 may be the same as the container lid illustrated in FIGS. 1 to 3.

  In the container lid shown in FIG. 4, when the pull ring 128 is pulled with a finger, the two connecting pillars 126 are elastically bent in a direction away from each other, thereby promoting an increase in the inner diameter of the pull ring 128. The

  FIG. 5 illustrates a part of another modified example of the container lid. In this variation, the connecting post 226 has a single lower portion 227 and an upper portion 229 that is bifurcated. The pull ring 228 extends in a substantially circular shape in a plan view from one upper end portion of the upper portion 229 branched into the fork of the connecting column 226 to the other upper end portion. Other configurations of the container lid illustrated in FIG. 5 may be the same as those of the container lid illustrated in FIGS. 1 to 3.

  In the container lid shown in FIG. 5, when the pull ring 228 is pulled with a finger, the upper part 229 branched into the fork of the connecting column 226 is elastically bent in a direction away from each other, and thereby the pull ring 228 is bent. An increase in inner diameter is encouraged.

  In the embodiment described above, the cap 6 is connected to the container lid main body 4 via the pivot connecting portion 44. However, the present invention has a configuration in which the cap is detachably screwed to the container lid main body. The present invention can also be applied to a container lid or a container lid in a form in which a cut-out region and a pull ring connected thereto are arranged in a stopper formed separately from the container lid.

FIG. 6 illustrates another embodiment of a container lid constructed in accordance with the present invention. In the illustrated embodiment, the container lid 302 has a circular bottom wall 308, a cylindrical side wall 309 extending upward from the periphery of the bottom wall 308, and an annular flange wall 311 extending radially outward from the upper end of the side wall 309. And a substantially circular pull ring 328 is connected to the upper end of the inner surface of the side wall 309. The pair of bent portions 330 of the pull ring 328 is disposed at an angle of approximately 90 degrees on both sides in the circumferential direction from the circumferential center of the connecting portion 313 between the pull ring 328 and the side wall 309, and the pull ring 328 is arranged on one side of the bent portion 330. Is provided with an inclined portion 332 that gradually extends upward from the bent portion 330 to the opposite side of the connecting portion 313 in the diametrical direction. A horizontal portion 334 extending horizontally from the bent portion 330 is disposed up to the connecting portion 313. Inclined portion 332 Ru Tei inclined at an angle of approximately 20 degrees to the horizontal.

  The container lid 302 shown in FIG. 6 is used as a so-called inner plug. The bottom wall 308 and the side wall 309 are inserted into the mouth and neck of the container, and the flange wall 311 is brought into contact with the upper end of the mouth and neck. It can be touched. When discharging the liquid contained in the container, if the finger is pulled on the pull ring 328 and pulled, the container lid 302 is detached from the mouth and neck of the container and the mouth and neck of the container is opened. The pull ring 328 is provided with a pair of bent portions 330, and on one side thereof (on the opposite side of the connecting portion 313) there is an inclined portion 332 that gradually extends upward as the distance from the bent portion 330 increases. Even in the case of a relatively small diameter, the finger can be easily put on the inclined portion 332 of the pull ring 328. When the pull ring 328 is pulled and pulled, in addition to the pull ring 328 itself being stretched, the bent portion 330 is linearly deformed to increase the inner diameter of the pull ring 328, and thus the pull ring 328. Even when the inner diameter is relatively small, a finger can be inserted into the pull ring 328 with sufficient ease.

2: Container lid 8: Bottom wall 22: Breakable line 24: Cut-off area 26: Connection pillar 28: Pull ring 30: Bending part 32: Inclined part 34: Horizontal part 108: Bottom wall 126: Connection pillar 127: Horizontal part 128: Pull ring 130: Bending part 132: Inclined part 226: Connecting column 227: Lower part 228: Pull ring 229: Upper part 302: Container lid 308: Bottom wall 309: Side wall 311: Flange wall 313: Connecting part 328: Pulling ring 330: Bending part 332: Inclined part 334: horizontal part

Claims (4)

In a synthetic resin container lid comprising a bottom wall in which a cutting area is defined by a breakable line, a connecting column extending upward from the cutting area, and a pull ring connected to the cutting area via the connecting column ,
The pull ring is provided with a pair of bent portions arranged at an angle of about 90 degrees from the circumferential center of the connecting column to both sides in the circumferential direction, and the pull ring is bent on one side of the bent portion. Extending from the bent portion to the opposite side of the connecting column in the diametrical direction gradually inclines upward from the bent portion, and horizontally extends from the bent portion to the connecting column on the other side of the bent portion. A synthetic resin container lid. The connecting post are two arranged in brought adjacent to each other in the circumferential direction, the pull ring extends in a substantially circular shape in plan view from one of the connecting post to the other of said connecting post, the synthesis of claim 1 wherein Resin container lid. The connecting column has a single lower portion and an upper portion branched into two branches, and the pull ring extends from one side of the upper portion branched into the two branches of the connecting column to the other in a substantially circular shape in a plan view. The synthetic resin container lid according to claim 1 . A circular bottom wall; a cylindrical side wall extending upward from the periphery of the bottom wall; an annular flange wall extending radially outward from an upper end of the side wall; and a pull ring connected to the inner surface of the side wall. In a synthetic resin container lid,
The pull ring is provided with a pair of bent portions arranged at an angle of approximately 90 degrees on both sides in the circumferential direction from the circumferential center of the connecting portion between the pull ring and the side wall. One side of the bent portion extends from the bent portion to the diametrically opposite side of the connecting portion while being gradually inclined upward as it is farther from the bent portion, and on the other side of the bent portion, the horizontal portion extends from the bent portion to the connecting portion. And a synthetic resin container lid .

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