JP2017007729A - Container lid with inside plug and outer lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new and improved container lid where the revolving movement of an opening and closing lid part is sufficiently and smoothly performed although a seal piece arranged at the opening and closing lid part is sufficiently and surely sealed by a discharge guide wall arranged in an inside plug when the opening and closing lid part of an outer lid is revolved to a closed position for resealing.SOLUTION: In a container lid 2 which is equipped with an inside plug 4 and an outer lid 6 and where the outer lid 6 has an opening and closing lid part 40 being freely rotatable between a closed position covering the inside plug 4 and an open position exposing the inside plug 4, a seal piece 84 arranged at the opening and closing lid part 40 is sufficiently and surely sealed by a discharge guide wall 24 arranged in the inside plug 4 when the opening and closing lid part 40 is revolved to the closed position by a hinge piece 66.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a container lid that includes an inner plug and an outer lid, and the outer lid has an open / close lid portion that is pivotable between a closed position that covers the inner plug and an open position that exposes the inner plug.

  As disclosed in Patent Document 1 below, a container lid having an inner stopper and an outer lid has been proposed as a container lid for a beverage container. The outer lid has a mounting base that is mounted on the mouth and neck of the container, and an opening / closing lid that is rotatably mounted on the mounting base via a hinge piece. The mounting base of the outer lid surrounds the inner plug. The open / close lid portion of the outer lid can be swung between a closed position where the inner plug is covered and an open position where the inner plug is exposed. The inner plug has a cylindrical discharge guide wall, and the inner surface of the top wall of the opening / closing lid portion of the outer lid is brought into close contact with the inner peripheral surface of the discharge guide wall of the inner plug when the opening / closing lid portion is brought into the closed position. A cylindrical seal piece is disposed.

JP 2013-71762 A

  However, according to the experience of the present inventors, the conventional container lid of the above-described form has the following problems to be solved. When resealing, that is, when returning the outer lid that has been moved to the open position to the closed position again, when the open / close lid portion of the outer lid is brought to the closed position, the seal piece disposed on the open / close lid portion is removed. It is important to establish a reliable seal that is sufficiently intimately contacted with the inner peripheral surface of the discharge guide wall disposed in the inner plug. To that end, it is necessary to extend the seal piece relatively long. However, the movement of the opening / closing lid from the open position to the closed position is not a linear movement along the axial direction, but a turning movement around the turning axis defined by the hinge piece. When turning from the closed position to the closed position, a so-called bite is generated between the seal piece and the discharge guide wall, which may hinder smooth turning movement of the opening / closing lid. If the extension length of the seal piece is relatively short in order to ensure a smooth swiveling movement of the opening / closing lid portion, the seal piece tends to be insufficiently sealed against the discharge guide wall.

  The present invention has been made in view of the above-described facts, and the main technical problem thereof is that when the opening / closing lid portion of the outer lid is swung to the closed position for resealing, the opening / closing lid portion is disposed. To provide a new and improved container lid in which the pivoting movement of the opening / closing lid portion is performed sufficiently smoothly even though the sealing piece is sufficiently securely sealed to the discharge guide wall disposed in the inner stopper. It is.

  As a result of intensive studies, the present inventors have achieved that the main technical problem can be achieved by connecting the open / close lid portion of the outer lid so as to be pivotable through a hinge piece that can be extended in the axial direction. I found it.

That is, according to the present invention, as a container lid that achieves the main technical problem, an open / close lid portion that is pivotable between an inner stopper, a closed position that covers the inner stopper, and an open position that exposes the inner stopper. An outer lid having
The inner plug includes a cylindrical discharge guide wall,
The opening / closing lid portion of the outer lid includes a top wall and a skirt wall depending from the peripheral edge of the top surface wall, and the inner surface of the top surface wall has an inner periphery of the discharge guide wall when the opening / closing lid portion is in the closed position. In the container lid provided with a cylindrical seal piece to be brought into close contact with the surface,
The opening / closing lid portion is pivotally connected via a hinge piece that is extendable in the axial direction.
A container lid is provided.

  A region of the inner peripheral surface of the skirt wall of the opening / closing lid that is diametrically opposite to the hinge piece is positioned at the upper end of the discharge guide wall when the opening / closing lid is swung to the closed position. It is preferable that a bulging portion is formed that abuts and moves the opening / closing lid portion upward in the axial direction. Preferably, two hinge pieces are arranged at intervals in the circumferential direction, and each of the hinge pieces is composed of an elongated piece having a portion extending in an arc shape in the middle in the vertical direction, When the arc extending portion is deformed, the hinge piece extends in the axial direction, and the opening / closing lid portion is moved upward in the axial direction. The inner plug includes a circular blocking wall connected to the inner peripheral surface of the discharge guide wall, and the blocking wall is formed with a breakable line that defines a removal region, and extends upward on the upper surface of the removal region Locking means is attached to the inner surface of the top wall of the opening / closing lid portion of the outer lid, and locking means located inside the seal piece is attached to the opening / closing lid portion. When the inner plug is combined with the outer lid located in the closed position as required, the locking means is locked to the locked means, and then the opening / closing lid is turned to the open position. Conveniently, the breakable line is broken by the force transmitted through the locking means and the locked means, and the removal region is moved along with the opening / closing lid. The outer lid includes a mounting base to be mounted on the mouth and neck of the container, the inner plug is surrounded by the mounting base, and the opening / closing lid is pivotally connected to the mounting base via the hinge piece. It is desirable that Preferably, a plurality of breakable bridging pieces are disposed between the opening / closing lid portion and the mounting base portion of the outer lid, and the opening / closing lid portion is swung from the closed position to the open position. When moving, the bridging piece is broken. Engaging means extending downward and radially outward is disposed at the lower end of the opening / closing lid on the opposite side in the diametrical direction with respect to the hinge piece, and the outer lid is attached to the inner plug. It is preferable that an engaged means that can be engaged with the engaging means when disposed in the closed position is provided.

  In the container lid of the present invention, when the opening / closing lid portion of the outer lid is turned from the open position to the closed position, the hinge piece extends in the axial direction so that the opening / closing lid portion rises somewhat in the axial direction. This allows, so that the so-called biting between the seal piece and the discharge guide wall is avoided, and the swinging movement of the opening / closing lid portion is sufficiently smooth although the seal piece is sufficiently securely sealed to the discharge guide wall. Carried out.

The slope view which shows suitable embodiment of the container lid comprised according to this invention. The longitudinal cross-sectional view of the container lid of FIG. The slope view which shows the inner stopper in the container lid of FIG. The longitudinal cross-sectional view of the inner stopper of FIG. The rear view which shows the outer cover in the container cover of FIG. FIG. 6 is a longitudinal sectional view of the outer lid of FIG. 5. Bottom view of the outer lid of FIG. The longitudinal cross-sectional view which shows the state which mounted | wore the mouth neck part of the container with the container lid of FIG. The longitudinal cross-sectional view which shows the initial state at the time of turning the outer lid in the container lid of FIG. 8 from a closed position toward an open position. The longitudinal cross-sectional view which shows the intermediate state at the time of turning the outer lid in the container lid of FIG. 8 from a closed position toward an open position. FIG. 9 is a longitudinal sectional view showing a state in which the outer lid of the container lid of FIG. 8 is turned to an open position. The longitudinal cross-sectional view which shows the initial state at the time of turning the outer lid in the container lid of FIG. 8 from an open position toward a closed position. The longitudinal cross-sectional view for demonstrating the behavior of the bulging part and hinge piece of an outer lid at the time of turning the outer lid in the container lid of FIG. 8 from an open position toward a closed position. The longitudinal cross-sectional view for demonstrating the relationship between an outer lid and an inner stopper at the time of turning the outer lid in the container lid of FIG. 8 from an open position toward a closed position. The longitudinal cross-sectional view which shows the state which turned the outer lid in the container lid of FIG. 8 to the closed position.

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

  1 and 2 show a preferred embodiment of a container lid constructed in accordance with the present invention. The container lid, generally designated by the numeral 2, comprises an inner plug 4 and an outer lid 6. FIG. The inner plug 4 can be injected or compression-molded from an appropriate synthetic resin such as polyethylene or polypropylene. Similarly, the outer lid 6 can also be injected or compression-molded from an appropriate synthetic resin such as polyethylene or polypropylene.

  Referring to FIGS. 3 and 4, the inner plug 4 in the illustrated embodiment has a cylindrical base wall 10 as a whole. At the lower end of the base wall 10, a cylindrical inner seal piece 12 that extends downward, an outer seal piece 14 that extends radially outward and then downwards, and between the inner seal piece 12 and the outer seal piece 14. An annular ridge 16 is provided. An annular locking ridge 18 is formed on the outer peripheral surface of the upper end portion of the base wall 10. Further, one arcuate protruding piece 20 constituting the engaged means is formed at a predetermined angular position on the outer peripheral surface of the base wall 10. The arcuate protruding piece 20 has a thickness that is gradually reduced outward in the radial direction, and its cross-sectional shape is substantially triangular. Connected to the upper end of the base wall 10 is an annular horizontal wall 22 that protrudes substantially horizontally inward in the radial direction, and a cylindrical discharge extending substantially vertically upward at the inner peripheral edge of the upper surface of the horizontal wall. A guide wall 24 is formed. The inner peripheral surface of the upper end portion of the discharge guide wall 24 extends in an arc shape in the radial direction upward, and the outer peripheral surface of the upper end portion bulges in a hemispherical shape outward in the radial direction. As clearly shown in FIG. 4, a blocking wall 26 is connected to the inner peripheral surface of the discharge guide wall 24, thereby closing the flow path defined by the discharge guide wall 24. In the illustrated embodiment, the blocking wall 26 is inclined downward from left to right in FIG. The blocking wall 26 is formed with a breakable line 28 composed of scores (grooves) formed on the lower surface thereof. The breakable line 28 is substantially circular and defines a substantially disc-shaped removal region 30. Locked means 32 extending upward is attached to the upper surface of the removal region 30. The locked means 32 has a column portion 34 that extends substantially vertically upward. The column 34 is not concentric with the blocking wall 26 and is displaced somewhat to the left in FIG. The lower end portion of the column portion 34 has a truncated pyramid shape in which the cross-sectional area gradually decreases upward, and the main portion following the lower end portion has a prismatic shape with a rectangular cross-sectional shape. A locking piece 36 is formed on the upper end of the column 34 so as to protrude outward from each of the opposing long sides.

  5 and 6 together with FIG. 1, the outer lid 6 in the illustrated embodiment includes a mounting base 38 and an opening / closing lid 40. The mounting base 38 has a substantially cylindrical shape as a whole, and a circumferentially breakable line 42 is formed at a lower portion thereof. The mounting base 38 and the main portion 44 above the circumferentially broken line 42 and a circumferentially breakable line are formed. A tamper evidence skirt 46 below the 42 is defined. The circumferential breakable line 42 includes slits (kerfs) 48 that extend in the circumferential direction at intervals in the circumferential direction and a breakable bridging portion 50 that is positioned between the slits 48. The circumferential central portion of each lower edge of the slit 48 is displaced upward from both circumferential sides, and the axial width of each slit 48 is relatively small at the circumferential central portion and at both circumferential sides. Relatively large. A female thread 52 is formed on the inner peripheral surface of the main portion 44, and the female thread 52 is interrupted in a plurality of regions located at intervals in the circumferential direction. A large number of protrusions 51 extending in the axial direction are arranged on the outer peripheral surface of the main portion 44 at intervals in the circumferential direction in order to prevent slipping of a finger hung thereon. An annular locking ridge 53 is formed at the upper end of the inner peripheral surface of the main portion 44. An additional portion 54 that extends slightly inward in the radial direction and then slightly upward in the axial direction is attached to the upper end portion of the main portion 44. Locking means 58 is formed on the inner peripheral surface of the tamper evidence skirt 46. The locking means 58 is composed of a plurality of locking pieces 60 extending obliquely upward inward from the inner peripheral surface of the tamper evidence skirt 46 at intervals in the circumferential direction. ing.

  The opening / closing lid 40 includes a substantially circular top wall 62 and a substantially frustoconical skirt wall 64 depending from the periphery of the top wall 62. As clearly understood by referring to FIG. 5, the lower end of the skirt wall 64 of the opening / closing lid 40 is connected to the upper end of the additional portion 54 of the mounting base 38 via a hinge piece 66. The part 40 is pivotable between a closed position shown in FIGS. 1, 5 and 6 and an open position shown in FIG. 10 (as will be described later, the opening / closing lid part 40 can be moved from the closed position with respect to the mounting base 38). When turning to the open position, the breakable bridging piece 74 connecting the mounting base 38 and the opening / closing lid 40 needs to be broken). In the container lid 2 constructed in accordance with the present invention, it is important that the hinge piece 66 is extensible in the axial direction. In the illustrated embodiment, the opening / closing member 40 is connected to the mounting base 38 by a pair of hinge pieces 66 arranged at intervals in the circumferential direction. Each of the hinge pieces 66 is composed of an elongated piece, and an intermediate portion thereof extends in an arc shape. Such a hinge piece 66 can be extended in the axial direction by elastically deforming a portion extending in an arc shape toward a straight line. If desired, one or more hinge pieces may be provided instead of the pair of hinge pieces 66. Moreover, although the intermediate part of the hinge piece 66 in embodiment of illustration is extended in the circumferential direction, an intermediate part can also be extended in radial direction outward. Between the pair of hinge pieces 66, a rectangular protruding piece 68 that protrudes downward is formed at the lower end of the skirt wall 64 of the opening / closing lid 40, and a rectangular protrusion that protrudes upward at the upper end of the additional portion 54 of the mounting base 38. A piece 70 is formed. As is understood by referring to FIG. 5 together with FIG. 1, the upper end edge of the additional portion 54 of the mounting base 38 is further diametrically opposite to the pair of hinge pieces 66 from both circumferential sides of the pair of hinge pieces 66. An arcuate wall 72 extending upward in the region up to both sides in the circumferential direction of the region is attached. The arcuate wall 72 does not exist in the diametrically opposite region of the pair of hinge pieces 66, and the rectangular cutout 73 exists in the diametrically opposite region of the pair of hinge pieces 66. At the end of the arcuate wall 72 on the side separated from the pair of hinge pieces 66, the amount of protrusion upward of the arcuate wall 72 is reduced at two parts spaced apart in the circumferential direction. Each of these is provided with a breakable bridging piece 74 that connects the arcuate wall 72 and the lower end of the skirt wall of the opening / closing member 40.

  5 and FIG. 6 together with FIG. 1, the portion between the pair of hinge pieces 66 in the circumferential direction on the outer peripheral surface of the skirt wall 64 in the opening / closing lid portion 40 of the outer lid 6 is substantially omitted. An egg-shaped relatively small recess 76 is formed. On the other hand, a relatively large recess 78 having a substantially rectangular shape is formed on the outer peripheral surface of the skirt wall 64 on the opposite side in the diameter direction of the pair of hinge pieces 66. The recess 78 is formed with a plurality of protrusions 80 extending in the circumferential direction at intervals in the vertical direction. A protruding piece 81 that protrudes outward in the radial direction is formed above the recess 78. Further, below the recess 78, there are engaging means 82 extending downward and radially outward from the lower end of the skirt wall 64, more specifically, a pair of hanging portions extending downward from the lower end of the skirt wall 64 and the hanging portion. An engaging means 82 is provided which is connected between the distal ends of the first and second arcuate portions and is formed of an arcuate portion projecting radially outward in a substantially horizontal direction.

  When the description is continued with reference to FIG. 7 together with FIG. 6, a cylindrical seal piece 84 that hangs downward is disposed on the inner surface of the top wall 62 of the opening / closing lid 40. On the inner surface of the top wall 62, a locking means 86 positioned inside the seal piece 84 is further disposed. The locking means 86 in the illustrated embodiment projects from the inner surface of the top wall 62 downwardly inclined from the inner surface of the square tube 88 and from the lower ends of the two opposite side walls of the rectangular tube 88, inclining inwardly downward. And a pair of locking pieces 90. The square tube 88 is not concentric with the seal piece 84 and is somewhat displaced to the left in FIG. A reinforcing connection piece 92 is disposed between each of the two side walls of the rectangular tube 88 and the inner peripheral surface of the seal piece 84. A region corresponding to the concave portion 78 on the inner peripheral surface of the skirt wall 64 of the open / close lid portion 40, and thus a region opposite to the diametrical direction of the region where the hinge piece 66 is disposed, bulges radially inward. A bulging portion 94 is formed. An annular single surface 96 facing downward is formed at the lower end portion of the inner peripheral surface of the skirt wall 64, and an annular locked groove 98 is formed immediately below the single surface 96.

Referring to FIG. 8 in conjunction with FIG. 2, the inner plug 4 and the outer lid 6 are combined as required prior to applying the container lid 2 to the container neck 100 (FIG. 8). More specifically,
The inner plug 4 is disposed in the outer lid 6, and the inner plug 4 is raised with respect to the outer lid 6 to the position illustrated in FIGS. 2 and 8. At this time, the angular positions of the outer lid 6 and the inner plug 4 are aligned as required, that is, the arcuate protruding piece 20 constituting the engaged means of the inner plug 4 is aligned with the engaging means 82 of the outer lid 6. The locking means 32 of the inner plug 4 is aligned with the locking means 86 of the outer lid 6. When the inner plug 4 is raised to the position shown in FIGS. 2 and 8 with respect to the outer lid 6, the upper surface of the horizontal wall 22 of the inner plug 4 comes into contact with the annular single side surface 96 of the outer lid 6, and The locking protrusion 18 engages with the locked groove 98 of the outer lid 6. Further, the locking means 53 of the outer lid 6 is locked to the lower end of the outer seal piece 14 of the inner plug 4. Furthermore, the engaging means 82 disposed on the opening / closing lid 40 elastically engages with the arcuate protruding piece 20 of the inner plug 4, and more specifically, the arcuate protruding piece 20 between a pair of hanging portions of the engaging means 82. Enters.

  When the inner plug 4 is raised to the position shown in FIGS. 2 and 8 with respect to the outer lid 6, the seal piece 84 of the outer lid 6 further enters the discharge guide wall 24 of the inner plug 4 and the seal piece 84. The outer peripheral surface of the discharge guide wall 24 is in close contact with the inner peripheral surface of the discharge guide wall 24, and thus the flow path defined by the discharge guide wall 24 is sealed. Further, the column portion 34 in the locked means 32 of the inner plug 4 enters the square tube 88 in the locking means 86 of the outer lid 6. At this time, the column portion 34 and the locking piece 36 (FIG. 3) of the locked means 32 act on the locking piece 90 (FIGS. 6 and 7) of the locking means 86, and the locking piece 90 is moved. The engagement piece 36 is deformed from the state inclined inward toward the lower side to the state inclined downward toward the upper side, and thus is engaged with the locking piece 36 extending outwardly inclined downward in the locked means 32. A locking piece 90 extending inwardly in the upward direction in the locking means 86 is locked with each other. The interlocking of the locking piece 36 and the locking piece 90 is restrained by the square tube 88, and once the locking piece 36 and the locking piece 90 are locked together as described above, the mutual locking is performed. Is maintained without being released.

  FIG. 8 also shows the mouth and neck 100 of the container in which the container lid 2 is provided. A container that can be formed from an appropriate synthetic resin such as polyethylene terephthalate or glass has a cylindrical mouth / neck portion 100, a male thread 102 on the outer peripheral surface of the mouth / neck portion 100, and a latch positioned below the outer thread 102. The jaw portion 104 and a ridge locking support ring 106 positioned below the jaw portion 104 are formed. As is well known, the support ring 106 is used for transporting containers.

  Next, the usage style of the container lid 2 as described above will be described. When the container lid 2 is attached to the mouth / neck portion 100 of the container and the mouth / neck portion 100 is sealed, the container lid 2 is fitted on the mouth / neck portion 100 and viewed in the closed rotation direction, that is, from above in FIG. By rotating clockwise, the female thread 52 of the mounting base 38 of the outer lid 6 is screwed into the male thread 102 of the mouth-and-neck section 100. As the screwing progresses, the container lid 2 is gradually lowered with respect to the mouth-and-neck portion 100, and when the container lid 2 is lowered to the position shown in FIG. Abutting on the surface, further lowering of the container lid 2 is prevented. In the state illustrated in FIG. 8, the inner seal piece 12 of the inner plug 4 enters the mouth and neck portion 100 and is in close contact with the inner peripheral surface, and the outer seal piece 14 of the inner plug 4 is the outer peripheral surface of the mouth neck portion 100. So that the mouth and neck 100 is sealed. The locking means 58 disposed on the tamper evidence skirt 46 of the mounting base 38 of the outer lid 6 elastically rides over the locking jaw 104 of the mouth-and-neck 100 and is positioned below it.

  In order to consume the contents of the container, for example, a finger is placed on the recess 78 formed on the skirt wall 64 of the opening / closing lid 40 of the outer lid 6 and the protruding piece 81 formed on the opening / closing lid 40. Turn to the open position. At this time, the engaging means 82 disposed on the opening / closing lid 40 is somewhat elastically deformed to be detached from the arcuate protruding piece 20 (engaged means) disposed on the inner plug 4. Moreover, the breakable bridging piece 74 (FIGS. 1 and 5) connecting the mounting base 38 and the opening / closing lid 40 is broken. As clearly understood by referring to FIG. 9 and FIG. 10 together with FIG. 8, when the opening / closing lid portion 40 is turned toward the open position, the locking means 86 of the opening / closing lid portion 40 locked to each other. A force is applied to the breakable line 28 formed on the closing wall 26 via the locked means 32 of the inner plug 4, and the breakable line 28 is gradually broken from the left side to the right side in FIGS. 8 to 10. Thus, the removal region 30 in the blocking wall 26 is removed, and the blocking of the flow path defined by the discharge guide wall 24 is released. When the opening / closing lid 40 is swung to the open position shown in FIG. 11, the protruding piece 68 disposed on the opening / closing lid 40 elastically climbs over the protruding piece 70 disposed on the mounting base 38. It is located outside the projecting piece 70, whereby the opening / closing lid 40 is elastically maintained in the open position. Thereafter, the contents can be consumed by picking up and sucking the tip of the discharge guide wall 24 or by letting the contents flow out through the discharge guide wall 24.

  When the mouth and neck part 100 is resealed after consuming part of the contents, the opening / closing lid part 40 in the outer lid 6 is turned toward the closed position. As clearly understood by referring to FIGS. 12 and 13, when the opening / closing lid 40 is swung over a predetermined angle toward the closed position, the seal piece in the region where the hinge piece 66 is disposed. Prior to 84 beginning to come into close contact with the inner peripheral surface of the discharge guide wall 24, the inner peripheral surface of the skirt wall 64 is located on the diametrically opposite side of the region where the hinge piece 66 (FIGS. 5 and 6) is disposed. The bulging portion 94 disposed on the abutting portion contacts the upper end portion (the upper end surface and / or the outer peripheral surface upper end portion) of the discharge guide wall 24 of the inner plug 4. When the opening / closing lid 40 is further swung toward the open position, the pair of hinge pieces 66 extend as shown by a two-dot chain line in FIG. 5 by the force applied to the bulging portion 94 from the discharge guide wall 24. Then, the opening / closing lid 40 is moved upward in the axial direction with respect to the mounting base 38 and the inner plug 4, and in particular, the opening / closing lid 40 on the region side where the hinge piece 66 is disposed is lifted upward. Therefore, as clearly understood by referring to FIGS. 14 and 15, the seal piece 84 provided with the opening / closing lid 40 does not bite into the distal end portion of the discharge guide wall 24, and the discharge guide It is possible to enter the wall 24 sufficiently smoothly. When the opening / closing lid 40 is swung to the closed position illustrated in FIG. 8, the outer peripheral surface of the seal piece 84 that has entered the discharge guide wall 24 is brought into close contact with the inner peripheral surface of the discharge guide wall 24. Will be resealed.

  After all the contents are consumed, it is desirable to remove substantially the entire container lid 2 from the mouth-and-neck portion 100 in view of so-called separation and collection. In order to remove the container lid 2 from the mouth-and-neck portion 100, a finger is put on the main portion 44 of the mounting base 38 of the outer lid 6, and the outer lid 6 is rotated in the opening rotation direction, that is, as viewed from above in FIG. Rotate clockwise. As a result, the outer lid 6 does not move upward in response to the unscrewing of the female thread 52 of the outer lid 6 and the male thread 102 of the mouth-and-neck portion 100, but the tamper evidence skirt 46 has an inner circumference. Since the locking means 58 disposed on the surface is locked to the locking jaw 104 of the mouth-and-neck portion 100, the upward movement is prevented, and thus the bridging portion 50 of the circumferential breakable line 42 ( 5 and 6) are broken, and the tamper evidence skirt 46 is separated from the main portion 44. FIG. After that, the outer lid 6 is lifted with the rotation in the opening direction, leaving the tamper evidence skirt 46, and is detached from the mouth and neck 100. The inner plug 4 is also rotated together with the outer lid 6 and moved upward, and is detached from the mouth and neck portion 100. When the inner plug 4 remains with the outer lid 6 in the mouth / neck part 100 without being removed from the mouth / neck part 100, the inner plug 4 may be detached from the mouth / neck part 100 by placing a finger on the remaining inner plug 4. it can.

  The preferred embodiments of the container lid configured according to the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such embodiments and departs from the scope of the present invention. It is not necessary to say variously that various modifications and corrections are possible. For example, in the illustrated embodiment, the outer lid 6 includes a mounting base portion 38 and an opening / closing lid portion 40, and the opening / closing lid member 40 is pivotally connected to the mounting base portion 38. The opening / closing lid portion can also be pivotally connected to the inner plug. Further, in the illustrated embodiment, the bulging portion 94 disposed on the inner peripheral surface of the skirt wall 64 of the opening / closing lid portion 40 is continuous in a required region, but extends in the axial direction at intervals in the circumferential direction, for example. A bulging part can also be constituted from a plurality of protrusions. Furthermore, in the illustrated embodiment, the bulging portion 94 is disposed on the inner peripheral surface of the skirt wall 64. However, instead of or in addition to this, the bulging portion is provided at a required portion of the discharge guide wall 24. It can also be arranged.

2: Container lid 4: Inner stopper 6: Outer lid 10: Base wall of inner stopper 20: Arc-shaped protruding piece (non-engaging means)
24: Discharge guide wall 26: Blocking wall 28: Breakable line 30: Removal area 32: Locking means 38: Cover mounting base 40: Opening / closing lid 62: Top wall of the opening / closing lid 64: Skirt of the opening / closing lid Wall 66: Hinge piece 82: Engaging means 84: Cylindrical seal piece 86: Locking means 94: Swelling part 100: Mouth and neck part of container

Claims (7)

An inner lid, and an outer lid having an open / close lid that can be pivoted between a closed position that covers the inner stopper and an open position that exposes the inner stopper,
The inner plug includes a cylindrical discharge guide wall,
The opening / closing lid portion of the outer lid includes a top wall and a skirt wall depending from the peripheral edge of the top surface wall, and the inner surface of the top surface wall has an inner periphery of the discharge guide wall when the opening / closing lid portion is in the closed position. In the container lid provided with a cylindrical seal piece to be brought into close contact with the surface,
The opening / closing lid is pivotally connected via at least one hinge piece that is extendable in the axial direction.
A container lid characterized by that.   An upper end portion of the discharge guide wall when the opening / closing lid portion is swung to the closed position in a region on the inner peripheral surface of the skirt wall of the opening / closing lid portion on the diametrically opposite side with respect to the hinge piece. 2. The container lid according to claim 1, wherein a bulging portion is formed to abut against the swell and move the opening / closing lid portion upward in the axial direction.   Two hinge pieces are arranged at intervals in the circumferential direction, and each of the hinge pieces is composed of an elongated piece having a portion extending in an arc shape at an intermediate portion in the vertical direction, and extends in the arc shape. The container lid according to claim 1 or 2, wherein the hinge piece extends in the axial direction and the opening / closing lid portion is moved upward in the axial direction by deformation of an existing portion.   The inner plug includes a circular blocking wall connected to the inner peripheral surface of the discharge guide wall, and the blocking wall is formed with a breakable line that defines a removal region, and extends upward on the upper surface of the removal region Locking means is attached to the inner surface of the top wall of the opening / closing lid portion of the outer lid, and locking means located inside the seal piece is attached to the opening / closing lid portion. When the inner plug is combined with the outer lid located in the closed position as required, the locking means is locked to the locked means, and then the opening / closing lid is turned to the open position. The breakable line is broken by a force transmitted through the locking means and the locked means, and the removal region is moved along with the opening / closing lid. The container lid according to 1.   The outer lid includes a mounting base to be mounted on the mouth and neck of the container, the inner plug is surrounded by the mounting base, and the opening / closing lid is pivotally connected to the mounting base via the hinge piece. The container lid according to claim 1, wherein the container lid is provided.   A plurality of breakable bridging pieces are disposed between the opening / closing lid portion and the mounting base portion of the outer lid, and when the opening / closing lid portion is swung from the closed position to the open position, 6. A container lid according to claim 5, wherein the bridging piece is broken.   Engaging means extending downward and radially outward is disposed at the lower end of the opening / closing lid on the opposite side in the diametrical direction with respect to the hinge piece, and the outer lid is attached to the inner plug. The container lid according to any one of claims 1 to 6, wherein engaged means capable of engaging the engaging means when disposed in the closed position are disposed.