JP2014189331A - Container lid composed of inner plug and lid main body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container lid, by which a lid main body can be rotated in a predetermined direction relative to an inner plug of the container lid to break a thin-walled breakable line in a blocking wall, thereby producing a passage opening in the blocking wall, which can be clearly recognized thereafter.SOLUTION: An annular shoulder face 40 facing upward is formed in a fixing wall of an inner plug; an outer peripheral surface 8a positioned below the annular shoulder face, of the fixing wall is positioned outward in a radial direction of the outer peripheral surface positioned above the annular shoulder face; a fitting wall 46 of a lid main body is formed to be fitted to a portion above the annular shoulder face of the fixing wall; and on at least a lower portion of the outer peripheral surface of the fitting wall of the lid main body and an outer peripheral surface below the annular shoulder face of the fixing wall are respectively arranged correspondent shape deformation portions (41a and 59a) and/or prints and are clearly shown a relative relationship between the corespondent shape deformation portions or the prints in a state where the lid main body is fixed to the inner plug as desired and rotation of the lid main body relative to the inner plug.

Description

  The present invention relates to a container lid composed of a synthetic resin inner stopper attached to the mouth and neck of the container and a synthetic resin lid main body attached to the inner stopper.

  Patent Document 1 below discloses a container lid that is composed of a synthetic resin inner stopper attached to the mouth and neck of the container and a synthetic resin lid main body attached to the inner stopper. The inner plug includes a circular obstruction wall and a cylindrical attachment wall connected to the outer peripheral edge of the obstruction wall, and is attached to the mouth and neck of the container by fitting the attachment wall to the outer peripheral surface of the mouth and neck of the container. The obstruction wall occludes the mouth and neck of the container. The lid body includes a circular cover wall and a cylindrical fitting wall connected to the outer peripheral edge of the cover wall, and the cover body is rotatably mounted on the inner plug by fitting the fitting wall to the outer peripheral surface of the inner wall of the inner plug. And the covering wall is located above the blocking wall of the inner plug. On the closing wall of the inner plug, a separation region that is completely separated by the breakage of the breakable thin line is defined, and a locking means is attached to the separation region. On the other hand, at least one discharge opening is formed in the cover wall of the lid body, and locking means for cooperating with the locked means is disposed on the lower surface of the cover wall. When the lid body is attached to the inner plug as required, when the lid body is rotated in a predetermined direction with respect to the inner plug, the locking means is locked to the locked means, and the locking means and the locked means A force is applied to the separation region through the inner wall, the breakable thin line of the inner plug is broken, and a passage opening is created in the closed wall where the separation region is separated.

JP 2005-59933 A

  The above-described container lid disclosed in Patent Document 1 simply rotates the lid body with respect to the inner plug without causing a sanitary problem by bringing a finger into contact with the closing wall of the inner plug. Thus, the breakable thin line formed on the closed wall of the inner plug can be broken to remove the removal region from the closed wall, thereby generating a passage opening. However, it is necessary to perform a complicated process in which the removal region is separated from the closed wall to become so-called waste pieces, and the waste pieces enter the container, or the waste pieces are taken out and discarded. Therefore, as a container lid for solving such a problem, the present inventors, in Japanese Patent Application No. 2012-253393, are not completely separated by the breakage of the breakable thin wall line on the closing wall of the inner plug, Deformable regions that are partially separated and deformed by breakage of the breakable thin wall line are defined, and the lid body is rotated in a predetermined direction with respect to the inner plug when the lid body is attached to the inner plug as required. When engaged, the locking means is locked to the locked means, a force is applied to the deformation area via the locking means and the locked means, the breakable thin line of the inner plug is broken, and the deformation area is partially Proposed a container lid that is separated and deformed to create a passage opening in the closed wall.

  Thus, the container lid disclosed in the above-mentioned Patent Document 1 or the container lid previously proposed by the present inventors has a thin wall that can be broken in the closed wall by rotating the lid body in a predetermined direction with respect to the inner plug. Even after breaking the line and thus creating a passage opening in the obstruction wall, such a fact cannot be clearly recognized, so even if a passage opening is created in the obstruction wall by so-called mischief, this fact is clearly recognized. There is a problem that you can't.

  The present invention has been made in view of the above-mentioned facts, and the main technical problem thereof is that the container lid disclosed in the above-mentioned Patent Document 1 or the container lid previously proposed by the present inventors is used for the inner plug. If the lid body is rotated in a predetermined direction to break the breakable thin line in the closed wall, thus creating a passage opening in the closed wall, this fact can be clearly recognized and improved. To provide a container lid.

  As a result of intensive studies, the inventors have formed an annular shoulder surface facing upward on the mounting wall of the inner plug, and the outer peripheral surface of the mounting wall located below the annular shoulder surface is an annular shoulder surface. The fitting wall of the lid body is located radially outward from the outer peripheral surface located above, and the fitting wall of the lid body is fitted to the portion above the annular shoulder surface of the mounting wall. Corresponding shape deformation parts and / or printing are arranged on at least the lower part of the outer peripheral surface of the joint wall and the outer peripheral surface below the annular shoulder surface of the mounting wall, respectively, and the lid body is attached to the inner plug as required The relative relationship between the corresponding shape deformed portion and / or printing in the changed state is changed when the lid body is rotated with respect to the inner plug, and thereby the lid body is rotated with respect to the inner plug. To achieve the above main technical issues. We have found that it is possible.

That is, according to the present invention, as a container lid that achieves the main technical problem described above, it is composed of a synthetic resin inner stopper attached to the mouth and neck of the container and a synthetic resin lid main body attached to the inner stopper. And
The inner plug includes a circular blocking wall and a cylindrical mounting wall connected to the outer peripheral edge of the blocking wall, and is fitted to the mouth and neck of the container by fitting the mounting wall to the outer peripheral surface of the mouth and neck of the container The occlusion wall occludes the mouth and neck of the container;
The lid body includes a circular covering wall and a cylindrical fitting wall connected to the outer peripheral edge of the covering wall, and the inner plug is fitted to the outer peripheral surface of the mounting wall of the inner plug. The cover wall is located above the blocking wall of the inner plug,
The closed wall of the inner plug defines a deformation region that is partially separated and deformed by breaking the breakable thin line or a separation region that is completely separated by breaking the breakable thin line,
Locked means is attached to the deformation region or the separation region,
At least one discharge opening is formed in the cover wall of the lid body, and locking means for cooperating with the locked means is disposed on the lower surface of the cover wall,
When the lid body is attached to the inner plug as required, when the lid body is rotated in a predetermined direction with respect to the inner plug, the locking means is locked to the locked means, In the container lid in which a force is applied to the deformation region or the separation region via the stopping means and the locked means, and the breakable thin line of the inner plug is broken to generate a passage opening in the closed wall ,
An annular shoulder surface facing upward is formed on the mounting wall of the inner plug, and an outer peripheral surface of the mounting wall located below the annular shoulder surface is located above the annular shoulder surface. It is located radially outward from the outer peripheral surface, and the fitting wall of the lid body is fitted to a portion above the annular shoulder surface of the mounting wall,
Corresponding shape deforming portions and / or printings are disposed on at least the lower part of the outer peripheral surface of the fitting wall of the lid main body and the outer peripheral surface below the annular shoulder surface of the mounting wall, respectively. The relative relationship between the corresponding shape deforming portion and / or printing in a state where the lid body is attached to the inner plug as required is changed when the lid body is rotated with respect to the inner plug, This clearly indicates that the lid body has been rotated with respect to the inner plug.
A container lid is provided.

  In a state where the lid body is mounted on the inner plug as required, an outer peripheral surface of at least the lower part of the fitting wall of the lid main body and an outer peripheral surface below the annular shoulder surface of the mounting wall of the inner plug Are preferably flush with each other. Preferably, the inner plug and the lid body cooperate with each other when the lid body is rotated in the predetermined direction by a predetermined angle or more with respect to the inner plug. A blocking means is provided for preventing the lid body from returning to its original state with respect to the inner plug by rotating the body in the opposite direction. An outer lid is provided at the upper end of the outer peripheral surface of the mounting wall of the lid body via a hinge means between a closed position that covers the cover wall of the lid body and an open position that exposes the cover wall of the lid body. Two specific regions having a width of 30 to 100 degrees in the circumferential direction with a portion having an angular interval of 90 degrees from the circumferential direction to both sides in the circumferential direction from the circumferential direction of the hinge means. Each of the fitting walls continuously extends in the axial direction over the lower portion of the outer peripheral surface of the fitting wall and the outer peripheral surface below the annular shoulder surface of the mounting wall, and constitutes at least one of the corresponding shape deforming portions. It is preferable that a plurality of protrusions are provided. Conveniently, the number and / or width of the ridges disposed on one of the two specific areas is different from the number and / or width of the ridges disposed on the other. An outer lid is provided at the upper end of the outer peripheral surface of the mounting wall of the lid body via a hinge means between a closed position that covers the cover wall of the lid body and an open position that exposes the cover wall of the lid body. Two specific regions having a width of 30 to 100 degrees in the circumferential direction with a portion having an angular interval of 90 degrees from the circumferential direction to both sides in the circumferential direction from the circumferential direction of the hinge means. Each of the fitting walls continuously extends in the axial direction over the lower portion of the outer peripheral surface of the fitting wall and the outer peripheral surface below the annular shoulder surface of the mounting wall, and constitutes at least one of the corresponding shape deforming portions. Preferably, a single flat surface is provided. Conveniently, the number and / or width of the flat surfaces arranged in one of the two specific areas is different from the number and / or width of the flat surfaces arranged in the other. In a preferred embodiment, an additional flat surface extending radially inward from the upstream edge of the flat surface is attached to the upstream edge of the flat surface in the predetermined direction. In another preferred embodiment, in a specific region located below the hinge means in a state where the lid body is mounted on the inner plug as required, a lower portion of the outer peripheral surface of the fitting wall A print indicating a half portion is disposed, and a print indicating a lower half portion of the character “closed” is disposed on the outer peripheral surface below the annular shoulder surface of the mounting wall, and these prints correspond to the corresponding prints. And the inner plug is positioned in alignment with the specific region of the fitting wall when the inner plug is rotated by a predetermined angle in the predetermined direction with respect to the lid body, than the annular shoulder surface of the mounting wall. In the additional specific area on the lower outer peripheral surface, printing indicating the lower half of the character “open” is arranged.

  In the container lid of the present invention, when the lid main body is rotated in a predetermined direction with respect to the inner stopper to break the breakable thin line in the closed wall, thus generating a passage opening in the closed wall, the corresponding shape deformation The relative relationship of the part and / or printing is changed, which clearly indicates that the lid body has been rotated relative to the inner plug.

The front view of the inner stopper in the suitable embodiment of the synthetic resin container lid comprised according to this invention. The top view of the inner stopper shown in FIG. Sectional drawing along line AA shown in FIG. 2 of the inner stopper shown in FIG. The slope view of the inside plug shown in FIG. The top view of the cover main body in suitable embodiment of the synthetic resin container lid comprised according to this invention. FIG. 6 is a bottom view of the lid body shown in FIG. 5. Sectional drawing along line BB shown in FIG. 5 of the lid | cover main body shown in FIG. FIG. 6 is a perspective view showing a part of the lid main body shown in FIG. 5. FIG. 9 is a front view illustrating a state in which the lid main body illustrated in FIGS. 5 to 8 is attached to the inner plug illustrated in FIGS. 1 to 4 as required. FIG. 9 is a cross-sectional view showing a state in which the lid body shown in FIGS. 5 to 8 is attached to the inner plug shown in FIGS. 1 to 4 as required. FIG. 10 is a front view showing a state in which the lid main body is rotated by a predetermined angle in the counterclockwise direction when viewed from above with respect to the inner plug from the state illustrated in FIG. 9. From the state shown in FIG. 9, the lid body is rotated counterclockwise by a predetermined angle with respect to the inner plug as viewed from above, and the breakable thin wall line of the inner plug is broken to deform the deformation area to generate a passage opening. Sectional drawing which shows the state which carried out. The front view which shows the state which attached the cover main body to the inner stopper concerning this invention in which the modification of the shape deformation part was arrange | positioned as needed. FIG. 14 is a plan view showing a state in which a lid main body is mounted as required on an inner plug according to the present invention, in which a modification of the shape deforming portion shown in FIG. 13 is arranged. The top view which shows the state which mounted | wore the lid | cover main body as needed to the inner stopper concerning this invention by which the other modification of a shape deformation part was arrange | positioned. The side view which shows the state which mounted | worn with the cover main body as needed to the inner stopper concerning this invention by which it replaced with the shape deformation | transformation part and printing was arrange | positioned. FIG. 17 is a side view showing a state in which the lid main body is rotated by a predetermined angle in the counterclockwise direction when viewed from above with respect to the inner plug from the state illustrated in FIG. 16.

  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.

  A synthetic resin container lid constructed according to the present invention comprises an inner plug 2 shown in FIGS. 1 to 4 and a lid body 4 shown in FIGS. 5 to 8. The inner plug 2 can be injection-molded from an appropriate synthetic resin such as polyethylene or polypropylene. Similarly, the lid body 4 can also be injection-molded from an appropriate synthetic resin such as polyethylene or polypropylene.

  Referring to FIGS. 1 to 3, the inner plug 2 includes a circular blocking wall 6 and a mounting wall 8 having a substantially cylindrical shape connected to the outer peripheral edge of the blocking wall 6. In the illustrated embodiment, the blocking wall 6 includes a central main portion 10 that extends substantially horizontally, an annular ridge portion 12 that bulges upward from the outer peripheral edge of the central main portion 10, and an upper end of the annular ridge portion 12. Having an annular outer peripheral edge 14 extending substantially horizontally radially outward. An annular seal piece 16 that hangs downward is attached to the lower surface of the annular outer peripheral edge portion 14.

  In the central main portion 10 of the closing wall 6, two breakable thin lines 18 are formed point-symmetrically with respect to the central point of the closing wall 6, and two arcuate deformation regions 20 are defined. Each of the breakable thin lines 18 has a substantially semicircular break start end 18a, an outer arcuate portion 18b extending following a radially outer end of the break start end 18a, and a radial direction of the break start end 18a. It has an inner arcuate portion 18c extending following the inner end. The outer arc-shaped portion 18b extends in a substantially arc shape at the outer peripheral edge of the central main portion 10. The inner arc-shaped portion 18c extends linearly from the radially inner end portion of the fracture start end portion 18a, and then extends in a substantially arc shape at the central portion of the central main portion 10 to form an arc shape as a whole. The downstream end of the outer arc-shaped portion 18c and the downstream end of the inner arc-shaped portion 18c are separated from each other in a substantially radial direction. The deformation region 20 defined by the breakable thin line 18 is extended in an arc in the counterclockwise direction in FIG. 2 (and thus viewed from above).

  Locked means 22 is disposed in each of the deformation regions 20. In the illustrated embodiment, each of the locking means 22 is constituted by a locking piece that extends upward from the upstream end of the deformation region 20 when viewed in a predetermined direction and then extends radially inward. A support column 22a extending substantially vertically upward from the upper surface of the upstream end of the deformation region 20, and a projecting beam 22b extending substantially horizontally inward in the radial direction from the upper end of the support column 22a. It consists of a locking piece. A common support 24 that extends substantially vertically upward is disposed at the center of the upper surface of the blocking wall 6, and the radially inner end of each protruding beam portion 22 b of the locked means 22 is connected to the common support 24. Therefore, the radially inner ends of the projecting beam portions 22 b of the locked means 22 are connected to each other via a common column 24. If desired, the common beam 24 can be omitted and the overhanging beam portion 22b extending from the two column portions 22a can be interconnected. However, it is preferable to dispose the common strut 24 from the standpoint of reliable transmission of force at the time of opening.

  An annular locking ridge 26 projecting outward in the radial direction is formed at the upper end of the outer peripheral surface of the mounting wall 8. As shown in FIGS. 1 and 2, a positioning groove 28 is formed at a predetermined circumferential position of the annular locking protrusion 26. An annular shoulder surface 30 facing upward is formed on the inner peripheral surface of the mounting wall 8. Then, a region below the annular shoulder surface 30 on the inner peripheral surface of the mounting wall 8 and above the upper surface of the annular outer peripheral edge portion 14 of the blocking wall 6 is clearly shown by referring to FIG. 4 together with FIG. As can be understood from the above, one protrusion 32 having a substantially rectangular parallelepiped shape and ratchet claws 34 and 36 are formed so as to be separated from the protrusion 32 on both sides in the circumferential direction by a required distance. Each of the ratchet pawls 34 and 36 has a gently inclined surface 34a and 36a extending gradually inward in the counterclockwise direction in FIG. 2 and a steep engaging surface 34b located at the downstream end in the counterclockwise direction. And 36b. Cutouts 34c and 36c extending in the clockwise direction are formed in the locking surfaces 34b and 36b. A plurality of locking ridges 38 projecting inward in the radial direction are disposed at the lower end portion of the inner peripheral surface of the mounting wall 8. The locking protrusions 38 are extended in the circumferential direction at a slight interval in the circumferential direction. If desired, instead of forming a plurality of locking ridges 38, annular ridges extending continuously in the circumferential direction can be formed.

  An annular shoulder surface facing upward is formed in the middle of the mounting wall 8 of the inner plug 2 in the axial direction, and the outer peripheral surface of the mounting wall 8 positioned below the annular shoulder surface is higher than the annular shoulder surface. It is important that it is located radially outward from the outer peripheral surface located at. In the illustrated embodiment, the lower outer diameter of the mounting wall 8 is set larger than the upper outer diameter, as will be clearly understood by referring to FIGS. 3 and 4 together with FIG. An annular shoulder surface 40 extending upward substantially extending horizontally is formed at a substantially intermediate portion in the axial direction, and an outer peripheral surface 8a positioned below the annular shoulder surface 40 is located above the annular shoulder surface 40. It is located radially outward from the outer peripheral surface. It is important that a deformed portion and / or printing is disposed on the outer peripheral surface 8a below the annular shoulder surface 40 of the mounting wall 8. In the illustrated embodiment, the outer peripheral surface 8a below the annular shoulder surface 40 of the mounting wall 8 continuously extends from the lower end to the upper end with an interval in the circumferential direction at an angular position positioned below in FIG. Two ridges 41a are formed, and three ridges 41b that extend continuously from the lower end to the upper end at equal intervals in the circumferential direction are formed in the angular portion located at the upper side in FIG. (The positional relationship between the protrusions 41a and 41b will be further described later).

  The mounting wall 8 is formed with an annular gap 39 having a depth from the lower end to the vicinity of the annular shoulder surface 40 and extending in the circumferential direction. One or several notches (not shown) extending from the annular gap 39 to the outer peripheral surface of the mounting wall 8 are also formed in the lower half of the mounting wall 8 in association with the annular gap 39. The annular gap 39 and the notch formed in relation to the annular gap 39 are used for so-called separate collection after the contents of the container are consumed after the inner plug 2 attached to the mouth / neck portion of the container is consumed as described later. It is a well-known configuration that makes it possible to easily and easily remove the inner stopper 2 from the mouth and neck of the container (for details, see, for example, JP-A-10-59400 and JP-A-2004-83092). See).

  When the description is continued with reference to FIGS. 5 to 8, the lid body 4 in the illustrated embodiment includes an outer lid 43 together with the body portion 42. The main body 42 includes a circular cover wall 44 extending substantially horizontally and a cylindrical fitting wall 46 connected to the outer peripheral edge of the cover wall 44. At least one discharge opening 48 in the illustrated embodiment is formed in the central portion of the cover wall 44. Each of the discharge openings 48 is positioned corresponding to the two deformation regions 20 disposed in the inner plug 2 (that is, point-symmetric with respect to the center point of the cover wall 44). Each of the discharge openings 48 has a shape that substantially matches the shape of the deformation region 20 and extends in an arc shape in the counterclockwise direction in FIG.

  A substantially cylindrical discharge guide wall 50 is formed on the upper surface of the cover wall 44 and extends upward outside the discharge opening 48 in the radial direction. The portion of the discharge guide wall 50 located on the right side in FIGS. 5 and 7 is slightly inclined to the right side upward. The upper end portion of the discharge guide wall 50 is extended in a substantially semicircular shape in FIG. On the upper surface of the cover wall 44, an annular locking ridge 52 is also formed that extends from the outer peripheral edge of the cover wall 44 to the upper side in a radially inclined manner. A cylindrical seal piece 54 extending downward is formed on the outer peripheral edge of the lower surface of the cover wall 44. Locking projections 56 having a rectangular parallelepiped shape projecting downward and radially inward are formed at predetermined positions in the circumferential direction on the inner circumferential surface of the seal piece 54. As will be described later, the locking projection 56 cooperates with the projection 32 and the ratchet pawls 34 and 36 disposed on the inner plug 2.

  Corresponding to the two locked means 22 formed in the inner plug 2, two locking means 58 are formed on the lower surface of the cover wall 44. As clearly understood by referring to FIG. 8, each of the locking means 58 is constituted by a locking piece extending downward from the lower surface of the cover wall 44 and then extending in a predetermined direction, and more specifically, the discharge opening 48. It is comprised from the latching piece which has the protrusion part 58b extended in an arc shape counterclockwise in FIG. 5 from the lower end of this hanging pillar part 58a and the lower end of this hanging pillar part 58a. The cross-sectional shape of each of the two drooping column portions 58a facing each other in the diameter direction is a substantially trapezoid. In FIG. 5, which is a plan view, it is advantageous from the viewpoint of molding that the substantially entire projections 58 b are located in the discharge opening 48.

  The fitting wall 46, which may be substantially cylindrical, is suspended from the outer peripheral edge of the cover wall 44. A plurality of engaging protrusions 62 extending in the circumferential direction are formed on the inner circumferential surface of the fitting wall 46 at intervals in the circumferential direction. Further, a positioning protrusion 64 having a substantially rectangular parallelepiped shape is formed at a predetermined position in the circumferential direction at the lower end portion of the inner peripheral surface of the fitting wall 46. As will be further described later, the positioning protrusion 64 cooperates with the positioning groove 28 formed in the inner plug 2. If desired, a positioning protrusion can be formed at an appropriate portion of the inner plug 2 and a positioning groove cooperating with the positioning protrusion can be formed at an appropriate portion of the lid body 4. It is important that at least the lower part of the outer peripheral surface of the fitting wall 46 is provided with a shape deforming portion or printing. In the illustrated embodiment, two ridges 59a that extend continuously from the upper end to the lower end with a circumferential interval are formed in the angular part located in the upper part in FIG. 6, and the angle located in the lower part in FIG. Three protrusions 59b extending continuously from the upper end to the lower end at equal intervals in the circumferential direction are formed in the part (as will be described in detail later, the protrusion 59a corresponds to the protrusion 41a, and The line 59b corresponds to the protrusion 41b). An immersive portion 60 extending in an arc shape is formed at a specific angle position on the outer peripheral surface of the fitting wall 46.

  Continuing the description with reference to FIGS. 5 to 8, the outer lid 43 is composed of a circular top wall 66 and a cylindrical skirt wall 68 depending from the periphery of the top wall 66. The outer lid 43 is pivoted to the main body 42 by connecting a circumferential specific portion at the lower end of the skirt wall 68 to a circumferential specific portion of the fitting wall of the main body 42 via a hinge means 70. It is connected freely. The lid body 6 composed of the main body portion 42 and the outer lid 43 is molded in a state illustrated by solid lines in FIGS. 5 to 7, and the outer lid 43 with respect to the main body portion 42 is solid lines in FIGS. 5 to 7. It can turn between the open position shown in the figure and the closed position shown by a two-dot chain line in FIG. The hinge means 70, which may be in a known form per se, is located on the diametrically opposite side of the recessed portion 60 formed in the fitting wall 46 of the main body portion 42. A cylindrical sealing piece 72 is formed on the inner surface of the top wall 66. Further, on the inner surface of the top wall 66, two convex portions 74 extending in a semicircular shape on the radially outer side of the seal piece 72 in the right half portion in FIGS. 5 and 7 are also formed. An annular locking groove 76 is formed in the lower part of the inner peripheral surface of the skirt wall 68. In addition, on the inner peripheral surface of the skirt wall 68, two protrusions 78 extending in a semicircular arc shape in the axial direction intermediate portion in the right half portion in FIG. 7 are also formed. On the outer peripheral surface of the skirt wall 68, an arc-shaped ridge 80 positioned on the diametrically opposite side with respect to the hinge means 70 is formed. As is understood by referring to FIG. 9 together with FIGS. 5 and 6, two ridges are provided on the lower end portion of the outer peripheral surface of the skirt wall 68 at intervals in the circumferential direction at a position located in the upper portion in FIG. 6. 81a is formed, and three ridges 81b are formed at equal intervals in the circumferential direction at the lower end portion of the outer surface of the skirt wall 68 at an angle portion positioned below in FIG. The upper ends of the protrusions 81a and 81b are inclined inward in the radial direction upward. As will be understood by referring to FIGS. 9 and 11, when the outer lid 43 is brought into the closed position with respect to the main body portion 42 of the lid main body 4, the protrusions 81a and 81b are fitted into the main body portion 42, respectively. The protrusions 59a and 59b formed on the outer peripheral surface of the mating wall 46 are aligned. As will be described later, when the lid body 4 is rotated with respect to the inner plug 2, fingers can be hooked on the ridges 59 a and 59 b together with the ridges 81 a and 81 b, and the outer lid 43 is relative to the body portion 42. It is avoided that they are displaced. Two relatively long arc-shaped ridges 82 and two relatively short arc-shaped ridges 84 are formed on the front end surface or the lower end surface of the skirt wall 68. When the outer lid 43 is brought into the closed position indicated by a two-dot chain line in FIG. 7, the outer peripheral surface of the seal piece 72 is brought into close contact with the inner peripheral surface of the discharge guide wall 50 in the main body portion 42. Further, the annular locking groove 76 is locked to the annular locking protrusion 52 of the main body 42, and thus the outer lid 43 is locked to the closed position so as to be releasable. The arc-shaped ridges 82 and 84 are brought into close contact with the peripheral edge of the upper surface of the cover wall 44 of the main body 42.

  The inner plug 2 and the lid body 4 as described above are combined as shown in FIGS. 9 and 10. More specifically, the main body portion 42 in the lid main body 4 in which the outer lid 43 is in the closed position is forcibly lowered with respect to the inner plug 2, and the fitting wall 46 of the main body portion 42 is moved to the inner plug 2. It is fitted to the outer peripheral surface of the mounting wall 8. At this time, the positioning groove 64 (FIG. 6) is formed in the upper end portion of the outer peripheral surface of the mounting wall 8 with the circumferential position of the positioning protrusion 64 (FIG. 6) formed on the lower end portion of the inner peripheral surface of the fitting wall 46. The positioning protrusion 64 is made to enter the positioning groove 28 so as to coincide with the circumferential position of 1), thereby restricting the relative angular position of the lid body 4 with respect to the inner plug 2. When the lid body 4 is lowered with respect to the inner plug 2 to the state shown in FIGS. 9 and 10, the engaging protrusion 62 formed on the inner peripheral surface of the fitting wall 46 is formed on the outer peripheral surface of the mounting wall 8. The lid main body 4 is attached to the inner plug 2 so as to be rotatable. The seal piece 54 of the lid body 4 is brought into close contact with the upper end portion of the inner peripheral surface of the mounting wall 8 of the inner plug 2. The fitting wall 46 of the lid main body 4 is fitted to a portion above the annular shoulder surface 40 of the mounting wall 8, and the lower end of the fitting wall 46 is positioned slightly above the annular shoulder surface 40 of the mounting wall 8. The outer peripheral surface of the fitting wall 46 of the lid body 4 and the outer peripheral surface 8a below the annular shoulder surface 40 of the mounting wall 8 of the inner plug 2 are flush with each other. Then, a mounting wall is provided in the specific region 86a having a width of approximately 30 to 90 degrees in the circumferential direction with a portion located 90 degrees clockwise from the circumferential center of the hinge means 70 as viewed from above. The protrusions 41a formed on the outer peripheral surface 8 and the protrusions 59a formed on the outer peripheral surface of the fitting wall are positioned, and the two protrusions 41a and the protrusions 59a are attached to the outer peripheral surface of the fitting wall 46. The wall 8 extends in the axial direction substantially continuously over the outer peripheral surface 8a below the annular shoulder surface 40. Further, a specific region 86b having a width of approximately 30 to 90 degrees in the circumferential direction with a portion at an angular position of 90 degrees counterclockwise from the circumferential center of the hinge means 70 as viewed from above (FIG. 9). In addition, the protrusion 41b formed on the outer peripheral surface of the mounting wall 8 and the protrusion 59b formed on the outer peripheral surface of the fitting wall are positioned and the three protrusions 41b are not shown in FIG. The protrusion 59b extends in the axial direction continuously over the outer peripheral surface of the fitting wall 46 and the outer peripheral surface below the annular shoulder surface 40 of the mounting wall 8.

  As shown by a two-dot chain line in FIG. 2, when the lid main body 4 is attached to the inner plug 2 as required, the locking projection 56 formed on the seal piece 54 of the lid main body 4 The protrusion 32 formed on the inner peripheral surface of the mounting wall 8 is located adjacent to the downstream side in the counterclockwise direction in FIG. The protrusion 32 and the locking protrusion 56 cooperate to prevent the lid body 4 from rotating in the clockwise direction in FIG. 2 (clockwise as viewed from above in FIG. 9) with respect to the inner plug 2. The protruding portions 58b of the locking means 58 in the lid body 4 are separated from each other below the overhanging beam portions 22b of the locked means 22 in the inner plug 2 and upstream in the counterclockwise direction in FIG. (In the illustrated embodiment, the pair of projecting beam portions 22b are not completely point-symmetrical and are slightly shifted from each other for the convenience of the molding die and the like, and the pair of projecting portions 58b are also completely corresponding to this. Is not point-symmetrical but slightly shifted).

  In FIG. 10, the mouth and neck portion 90 of the container to which the container lid constructed according to the present invention is applied is also shown by a two-dot chain line. The mouth-and-neck portion 90 of the container, which can be formed from an appropriate synthetic resin or glass, has a cylindrical shape as a whole, and an annular locking groove 92 is formed on the outer peripheral surface thereof. As clearly shown in FIG. 10, the container neck 90 is received between the lower half portion of the inner peripheral surface of the mounting wall 8 of the inner plug 2 and the outer peripheral surface of the seal piece 16. A container lid is attached to 90. The locking protrusion 38 formed at the lower end of the inner peripheral surface of the mounting wall 8 of the inner plug 2 is locked in the locking groove 92 of the mouth-and-neck portion 90, and the seal piece 16 of the inner plug 2 is the mouth-and-neck portion. It is closely attached to the inner peripheral surface of 90.

  When the contents such as seasoning liquid contained in the container are consumed, the lid body 4 is rotated counterclockwise (counterclockwise in FIG. 2) when viewed from above in FIG. Let me. When the lid body 4 is rotated by a predetermined angle α (FIG. 2) with respect to the inner plug 2, each of the two locking means 58 disposed on the lid body 4 is disposed on the inner plug 2. Each of the two locked means 22 is locked. More specifically, the protruding portion 58b of the locking means 58 enters below the protruding beam portion 22b of the locked means 22, and the suspended column portion 58a of the locking means 58 is the protruding beam portion of the locked means 22. 22b. The predetermined angle α is conveniently about 50 to 60 degrees. When the lid body 4 is further rotated beyond the predetermined angle α with respect to the inner plug 2, stress is applied to each of the breakable thin lines 18 via the locked means 22, and the breakable thin line 18 is The fracture starts from the fracture start end portion 18a.

  In the illustrated embodiment, as shown by a two-dot chain line in FIG. 2, the lid body 4 has an angle β (0 degree ≦ α−β ≦ 20) smaller than the predetermined angle α by 0 to 20 degrees relative to the inner plug 2. When the cover projection 4 is rotated by a predetermined degree, the locking projection 56 disposed on the lid body 4 elastically climbs over the ratchet pawl 34 disposed on the inner plug 2, and the lid body 4 moves against the inner plug 2. 9, rotation in the clockwise direction when viewed from above (clockwise in FIG. 2) is prevented by the cooperation of the locking protrusion 56 and the locking surface 34b of the ratchet pawl 34 that stands up. Therefore, the locking projection 56 and the ratchet pawl 34 cooperate to constitute a blocking means.

  As the rotation of the lid body 4 exceeding the predetermined angle α proceeds, the breakage of the breakable thin line 18 proceeds from the break starting end 18a to the outer arcuate portion 18b and the inner arcuate portion 18c. Then, when the rotation of the lid main body 4 with respect to the inner plug 2 proceeds to an angle γ (FIG. 2), as shown by the two-dot chain line in FIG. It abuts against the provided protrusion 32 and prevents the lid body 4 from rotating further counterclockwise with respect to the inner plug 2. Therefore, the locking projection 56 and the projection 32 cooperate to limit the rotation of the lid body 4 to the angle γ. The angle γ is conveniently about 300 to 320 degrees. When the lid body 4 is rotated by the angle γ with respect to the inner plug 2, as shown in FIG. 12, each of the breakable thin-wall lines 18 has a substantially downstream end of the respective outer arc-shaped portion 18 a and inner arc-shaped portion 18 b. The deformation region 20 disposed on the closing wall 6 of the inner plug 2 is deformed in a roll shape by being deformed upward and counterclockwise in accordance with the progress of the breakage of the breakable thin line 18. Two passage openings 90 (FIG. 12) are generated in the blocking wall 6. The downstream end of the outer arcuate portion 18a and the downstream end of the inner arcuate portion 18b of the breakable thin line 18 are separated from each other, and the deformation region 20 is separated from the blocking wall 6 without being broken between the two. There is no. If desired, instead of the deformation region 20, a separation region that is completely separated from the closed wall 6 by breaking the breakable thin line 18 may be used.

  In the state where the lid body 4 is mounted on the inner plug 2 as required, the relative relationship of the corresponding deformed portions (that is, the protrusions 41a and 59a and 41b and 59b) is such that the lid body 4 is relative to the inner plug 2. It is important to show that the lid body 4 has been rotated relative to the inner plug 2 by being changed when it is rotated. In the illustrated embodiment, in the state shown in FIG. 9, the protrusions 41a and 59a are in the specific region 86a, the protrusions 41b and 59b are in the specific region 86b, and the outer peripheral surface of the fitting wall 46 and the mounting wall 8 respectively. The outer peripheral surface 8a below the annular shoulder surface 40 extends continuously in the axial direction. When the lid body 4 is rotated by an angle γ with respect to the inner plug 2, the protrusion 59a protrudes somewhat in the specific area 86b in the specific area 86b, as seen from above the protrusion 41a, slightly clockwise (see FIG. 11). The strips 59a are displaced in a clockwise direction as viewed from above the protrusions 41b. In other words, the protrusions 41a and 59a are displaced in the circumferential direction, and the protrusions 41b and 59b are both displaced in the circumferential direction, thereby clearly indicating that the lid body 4 is rotated relative to the inner plug 2. Is done.

  In the illustrated embodiment, when the lid body 4 is rotated to the angle γ with respect to the inner plug 2, the locking projection 56 provided on the lid body 4 is provided on the inner plug 2. The ratchet pawl 36 that is present is overcome elastically. Therefore, the rotation of the lid body 4 in the clockwise direction with respect to the inner plug 2 is prevented by the cooperation of the locking projection 56 and the raised locking surface 36 b of the ratchet pawl 36.

  After the passage opening 94 is generated in the closing wall 6 of the inner plug 2 as described above, the outer lid 43 of the lid body 4 is swung to the position indicated by the two-dot chain line in FIG. 12, and then the container is tilted. Then, the contents of the container flow out through the passage opening 94 generated in the closing wall 6 of the inner plug 2 and the discharge opening 48 disposed in the lid body 4 and are guided to the discharge guide wall 50 of the lid body 4. Discharged.

  13 and 14 show a modification of the shape deforming portion. In the modification shown in FIGS. 13 and 14, three flat surfaces 141a extending in the axial direction are formed on the outer peripheral surface 108a below the annular shoulder surface 140 of the mounting wall 108 in the specific region 186a, and the fitting wall 146 is formed. Three flat surfaces 159a extending in the axial direction are formed on the outer peripheral surface of the outer peripheral surface, and four flat surfaces extending in the axial direction on the outer peripheral surface 108a below the annular shoulder surface 140 of the mounting wall 108 in the specific region 186b. The surface 141b is formed, and four flat surfaces 159b extending in the axial direction are formed on the outer peripheral surface of the fitting wall 146. The number and width of the flat surfaces 141a and 159a disposed in the specific region 186a and the flat surfaces 141b and 159b disposed in the specific region 186b are different. When the lid body 104 is combined with the inner plug 102 as required, the flat surface 141a and the flat surface 159a extend continuously in the axial direction in the specific region 186a, and the flat surface 141b and the flat surface 159b extend in the axial direction in the specific region 186b. . In the modification shown in FIG. 15, three flat surfaces 241 a extending in the axial direction are formed on the outer peripheral surface below the annular shoulder surface of the mounting wall in the specific region 286 a and correspond to the outer peripheral surface of the fitting wall. Thus, three flat surfaces 259a extending in the axial direction are formed, and in the specific region 286b, three flat surfaces 241b extending in the axial direction are formed on the outer peripheral surface below the annular shoulder surface of the mounting wall. And three flat surfaces 259b extending in the axial direction corresponding to the outer peripheral surface of the fitting wall. Each of the flat surfaces 241a, 259a, 241b, and 259b is radially inward from the upstream edge of each of the flat surfaces 241a, 259a, 241b, and 259b on the upstream edge in the predetermined direction (counterclockwise in FIG. 15). Additional flat surfaces 290a and 290b extending to the front are attached. The additional flat surfaces 290a and 290b provide a surface for locking a finger when the lid body is rotated in a predetermined direction with respect to the inner plug.

  16 and 17 show a modified example in which printing is provided instead of the shape deforming portion. In the specific region 386 located diametrically opposite the circumferential center of the hinge means with the lid body 304 attached to the inner plug 302 as required, the upper half of the letter “closed” is placed on the lower part of the outer peripheral surface of the fitting wall 346. A print 359 indicating the lower half of the character “closed” is disposed on the outer peripheral surface 308 a below the annular shoulder surface 340 of the mounting wall 308. Further, when the lid body 306 is rotated γ in the counterclockwise direction with respect to the inner plug 302, the outer peripheral surface below the annular shoulder surface 340 of the mounting wall 306, which is positioned in alignment with the specific region 386 of the fitting wall 346. In the additional specific area 387 of 308a, a print 341b indicating the lower half of the character “open” is arranged. That is, before the rotation of the lid main body 304 with respect to the inner plug 302, the character “closed” indicating that the container is unopened is displayed in the specific area 386 from the combination of the printing 359 and the printing 341a (see FIG. 16). After the rotation is completed, a passage opening is formed in the closed wall, and the letter “open” indicating that the container has been opened is displayed in the additional specific area 387 by the combination of the print 359 and the print 341b. (See FIG. 17).

2: Inner plug 4: Lid main body 6: Blocking wall 8: Mounting wall 18: Breakable thin line 20: Deformation region 22: Locking means 41a: Projection (shape deformation part)
41b: ridge (shape deformation part)
42: Body part of the lid body 43: Outer lid of the lid body 44: Covering wall 46: Fitting wall 48: Discharge opening 58: Locking means 59a: Projection (shape deforming part)
59b: ridge (shape deformed portion)
81a: ridge (shape deformation portion)
81b: ridge (shape deformation part)
86a: Specific region 86b: Specific region 90: Mouth and neck portion of container 94: Passing opening 141a: Flat surface (shape deformed portion)
141b: Flat surface (shape deformed portion)
159a: flat surface (shape deformed portion)
159b: flat surface (shape deformed portion)
186a: specific area 186b: specific area 286a: specific area 286b: specific area 241a: flat surface (shape deformed portion)
241b: flat surface (shape deformed portion)
290a: additional flat surface 290b: additional flat surface 341a: printing 341b: printing 359: printing 386: specific area 387: additional specific area

Claims (9)

It is composed of a synthetic resin inner stopper attached to the mouth and neck of the container and a synthetic resin lid body attached to the inner stopper,
The inner plug includes a circular blocking wall and a cylindrical mounting wall connected to the outer peripheral edge of the blocking wall, and is fitted to the mouth and neck of the container by fitting the mounting wall to the outer peripheral surface of the mouth and neck of the container The occlusion wall occludes the mouth and neck of the container;
The lid body includes a circular covering wall and a cylindrical fitting wall connected to the outer peripheral edge of the covering wall, and the inner plug is fitted to the outer peripheral surface of the mounting wall of the inner plug. The cover wall is located above the blocking wall of the inner plug,
The closed wall of the inner plug defines a deformation region that is partially separated and deformed by breaking the breakable thin line or a separation region that is completely separated by breaking the breakable thin line,
Locked means is attached to the deformation region or the separation region,
At least one discharge opening is formed in the cover wall of the lid body, and locking means for cooperating with the locked means is disposed on the lower surface of the cover wall,
When the lid body is attached to the inner plug as required, when the lid body is rotated in a predetermined direction with respect to the inner plug, the locking means is locked to the locked means, In the container lid in which a force is applied to the deformation region or the separation region via the stopping means and the locked means, and the breakable thin line of the inner plug is broken to generate a passage opening in the closed wall ,
An annular shoulder surface facing upward is formed on the mounting wall of the inner plug, and an outer peripheral surface of the mounting wall located below the annular shoulder surface is located above the annular shoulder surface. It is located radially outward from the outer peripheral surface, and the fitting wall of the lid body is fitted to a portion above the annular shoulder surface of the mounting wall,
Corresponding shape deforming portions and / or printings are disposed on at least the lower part of the outer peripheral surface of the fitting wall of the lid main body and the outer peripheral surface below the annular shoulder surface of the mounting wall, respectively. The relative relationship of the corresponding shape deforming portion or printing in the state where the lid body is attached to the inner plug as required is changed when the lid body is rotated with respect to the inner plug. It is clearly indicated that the lid body has been rotated with respect to the inner plug.
A container lid characterized by that.   In a state where the lid main body is mounted on the inner plug as required, at least a lower portion of the outer peripheral surface of the fitting wall of the lid main body, and an outer peripheral surface below the annular shoulder surface of the mounting wall of the inner plug The container lid according to claim 1, wherein is flush.   The inner plug and the lid body cooperate with each other when the lid body is rotated in the predetermined direction by a predetermined angle or more with respect to the inner plug. The container lid according to claim 1, wherein a blocking means is provided that prevents the lid body from returning to its original state with respect to the inner plug by rotating in the direction. An outer lid is provided at the upper end of the outer peripheral surface of the mounting wall of the lid body via a hinge means between a closed position that covers the cover wall of the lid body and an open position that exposes the cover wall of the lid body. Are pivotably connected,
In each of the two specific regions having a width of 30 to 100 degrees in the circumferential direction with a portion having an angular interval of 90 degrees from the circumferential direction of the hinge means to both sides in the circumferential direction, At least one protrusion that extends in the axial direction continuously extends over at least the lower part of the outer peripheral surface and the outer peripheral surface below the annular shoulder surface of the mounting wall, and forms the corresponding shape deforming portion. The container lid according to claim 1, wherein the container lid is provided.   The container lid according to claim 4, wherein the number and / or width of the ridges disposed in one of the two specific regions is different from the number and / or width of the ridges disposed on the other. . An outer lid is provided at the upper end of the outer peripheral surface of the mounting wall of the lid body via a hinge means between a closed position that covers the cover wall of the lid body and an open position that exposes the cover wall of the lid body. Are pivotably connected,
In each of the two specific regions having a width of 30 to 100 degrees in the circumferential direction with a portion having an angular interval of 90 degrees from the circumferential direction of the hinge means to both sides in the circumferential direction, There is provided at least one flat surface extending in the axial direction continuously over the lower portion of the outer peripheral surface and the outer peripheral surface below the annular shoulder surface of the mounting wall, and constituting the corresponding shape deforming portion. The container lid according to any one of claims 1 to 3.   The container lid according to claim 6, wherein the number and / or width of the flat surfaces arranged in one of the two specific areas is different from the number and / or width of the flat surfaces arranged in the other. .   The container lid according to claim 6 or 7, wherein an additional flat surface extending radially inward from the upstream edge of the flat surface is attached to an upstream edge of the flat surface when viewed in the predetermined direction.   In a specific area located below the hinge means with the lid body attached to the inner plug as required, a print indicating the upper half of the character “closed” is arranged at the lower part of the outer peripheral surface of the fitting wall. Prints indicating the lower half of the character “closed” are disposed on the outer peripheral surface below the annular shoulder surface of the mounting wall, and these prints constitute the corresponding prints, and Additional identification of the outer peripheral surface below the annular shoulder surface of the mounting wall, which is positioned in alignment with the specific region of the fitting wall when the plug is rotated by a predetermined angle in the predetermined direction with respect to the lid body The container lid according to any one of claims 1 to 3, wherein a print indicating the lower half of the character "open" is disposed in the region.

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