JP6018776B2 - Container lid - Google Patents

Description

  The present invention includes a main body mounted on a container and an outer lid mounted on the main body, and a circular thin wall line defining a removal region is formed on a closing wall of the main body that closes the mouth of the container. It relates to a container lid in the form.

  As a container lid for liquid seasonings such as liquid beverages or soy sauce, edible oil, and dressings, the following Patent Document 1 discloses a container lid that includes a main body attached to a container and an outer lid attached to the main body. It is disclosed. The main body has a circular closed wall that closes the mouth of the container and a cylindrical mounting wall that extends upward from the outer peripheral edge of the closed wall, and a circular thin wall line that defines a removal region is formed on the closed wall. At the same time, an engaged means that protrudes upward from the removal region is disposed, and a male thread is formed on the outer peripheral surface of the mounting wall. The outer lid has a top wall and a skirt wall depending from the top wall. A female thread that cooperates with the male thread is formed on the inner peripheral surface of the skirt wall, and the inner surface of the top wall is engaged. Engaging means cooperating with the coupling means are arranged. In addition to the circular thin wall line, the closure wall of the main body, together with the breakable arc thin wall line extending radially concentrically with the circular thin wall line, releases the threaded engagement of the male and female threads. A breakable connecting thin line for connecting the upstream end of the arc thin line to the circular thin line as viewed in the opening rotation direction of the outer lid with respect to the main body is also formed. The engaged means of the main body is composed of a pin having a spherical head, and the engaging means of the outer lid is composed of an engaging projection having an engaging recess that engages with the spherical head.

  In the container lid as described above, the outer lid is mounted on the main body by screwing the female thread formed on the skirt wall of the outer lid to the male thread formed on the mounting wall of the main body as required. In this case, when the outer lid is rotated in the opening rotation direction, that is, the direction in which the male thread of the main body and the female thread of the outer lid are unscrewed, the spherical head of the pin constituting the engaged means The engaging recess of the engaging protrusion constituting the engaging means is engaged with the part, and a force in the opening rotation direction is applied to the pin, thereby breaking the connecting thin line, followed by the circular thin line and the arc thin line The line is gradually broken from the upstream side to the downstream side in the opening rotation direction, and thus the removal region is separated from the blocking wall.

JP 2000-229655 A

  Thus, the container lid having the form as described above has the following problems to be solved. When the connecting thin line is broken and subsequently the circular thin line and the arc thin line are gradually broken, the force applied from the engaging means of the outer lid to the engaged means of the main body is substantially horizontal. , The force in the shear direction is not sufficiently generated for the connecting thin line, the circular thin line, and the arc thin line, and therefore, the breaking of the connecting thin line, the circular thin line, and the arc thin line tends not to be performed smoothly. .

  The present invention has been made in view of the above facts, and its main technical problem is that when the outer lid is rotated with respect to the main body in the opening rotation direction, the connection thin line, the circular thin line, and the arc thin line are sheared. And a new and improved container lid in which the connecting thin line, the circular thin line and the arc thin line are broken sufficiently smoothly and easily as required.

  As a result of diligent research, the present inventor has seen that the engaged means of the main body is seen from the column extending upward from between the upstream end of the arc thin line and the circular thin line when viewed in the opening rotation direction adjacent to the connection thin line. In addition, the engaging means of the outer lid is composed of a cylinder that hangs down from the top wall, and the interval between the front wall located on the downstream side and the rear wall located on the upstream side when viewed in the opening rotation direction of the cylinder is set to open the column. The width of the outer wall of the cylinder is larger than the width in the rotation direction, and the lower end of the rear wall of the cylinder is positioned facing the upper part of the column. It has been found that the main technical problem can be achieved by rotating the column so that the column can be tilted upward by the action of the rear wall of the cylinder. .

That is, according to the present invention, the container lid for achieving the main technical problem includes a main body attached to the container and an outer lid attached to the main body, and the main body closes the mouth of the container. A circular blocking wall and a cylindrical mounting wall extending upward from the outer peripheral edge of the blocking wall, and a breakable circular thin wall line defining a removal area is formed on the blocking wall, and from the removal area Engagement means projecting upward is arranged, an external thread is formed on the outer peripheral surface of the mounting wall, and the outer lid has a top wall and a skirt wall depending from the top wall. A female thread that cooperates with the male thread is formed on the inner peripheral surface of the skirt wall, and an engaging means for engaging with the engaged means is disposed on the inner surface of the top wall. And extending radially inward of the circular thin line concentrically with the circular thin line on the closing wall of the main body. Along with the arc thin wall line that can be broken, the circular thin wall line has an upstream end of the arc thin wall line as viewed in the opening rotation direction of the outer lid with respect to the main body when the male screw and the female screw are unscrewed. In the container lid in which a breakable connection thin-wall line connected to is formed,
The engaged means of the main body is composed of a column extending upward from between the upstream end of the arc thin line and the circular thin line when viewed in the opening rotation direction adjacent to the connection thin line. And
The engaging means of the outer lid is composed of a cylinder hanging from the top wall,
The interval between the front wall located downstream and the rear wall located upstream in the opening rotation direction of the cylinder is larger than the width in the opening rotation direction of the column, and the lower end of the rear wall of the cylinder is When the outer lid is rotated in the opening rotation direction with respect to the main body with the upper portion of the column being inserted into the lower portion of the cylinder, the rear cover of the cylinder is The column is tilted by the action of the wall so as to incline upward toward the opening direction.
A container lid is provided.

  In a preferred embodiment, the closure wall of the main body is provided with a locking means extending upward from the center thereof, and the locking means hanging from the center is arranged on the top wall of the outer lid. When the outer lid is attached to the main body, the outer lid is moved upward relative to the main body beyond a predetermined range by the cooperation of the locking means and the locked means. Displacement is prevented. Preferably, the pillar is a prism, the cylinder is a prism, and at the upper end of the prism, both sides of the prism as viewed in the opening rotation direction with the upper part of the prism inserted into the lower part of the prism. A pair of protruding flap pieces extending obliquely downward on both sides from the edge are attached, and at the lower end of the rectangular tube, the open rotation is performed with the upper portion of the rectangular column inserted into the lower portion of the rectangular tube. A pair of hanging flap pieces extending obliquely upward and downward from both side edges as viewed in the direction is attached, and the prisms are formed with respect to the square tube by the cooperation of the projecting flap pieces and the hanging flap pieces. Is prevented from being relatively displaced below a predetermined range.

  In the container lid of the present invention, when the outer lid is rotated in the opening rotation direction with respect to the main body, the column is tilted and opened in the state of tilting upward in the opening rotation direction by the action of the rear wall of the cylinder. A force in the shear direction is effectively generated in the connecting thin line, the circular thin line and the arc thin line due to being forced to the downstream side in the rotation direction and tilting the column, and thus the connecting thin line, the circular thin line And the arcuate thin line breaks as smoothly and easily as required.

The slope view of the main body in a container lid. Sectional drawing of the main body in the container lid of FIG. The top view of the main body in the container lid of FIG. The slope view seen from the bottom in the state where the locking piece of the outer lid in the container lid of Drawing 1 was changed. Sectional drawing immediately after shaping | molding of the outer cover in the container lid of FIG. 1 is a cross-sectional view of a preferred embodiment of a container lid constructed in accordance with the present invention. Sectional drawing which shows the behavior of a prism and a square cylinder at the time of rotating an outer cover in the opening rotation direction in suitable embodiment of the container lid of this invention with which the opening neck part of the container was mounted | worn.

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

  A preferred embodiment of a container lid constructed according to the present invention comprises a main body 2 shown in FIGS. 1 to 3 and an outer lid 4 shown in FIGS. 4 and 5.

  Referring to FIGS. 1 to 3, the main body 2 that can be injected or compression-molded from a suitable synthetic resin such as polyethylene or polypropylene has a circular closed wall 6 that extends horizontally as a whole. A breakable circular thin line 8 is formed on the blocking wall 6, and a removal region 10 is defined by the circular thin line 8. The blocking wall 6 further includes a breakable arc-shaped thin line 12 extending concentrically with the circular thin-walled line 8 on the radially inner side of the circular thin-walled line 8, and a clockwise downstream end (main body 2) of the arc-shaped thin-walled line 12 in FIG. A breakable connecting thin line 14 is formed to connect the circular thin line 8 to the upstream end of the outer lid 4 in the opening rotation direction of the outer cover 4 (see FIG. 3 in particular). On the upper surface of the blocking wall 6, a cylindrical mounting wall 16 extending upward from the outer peripheral edge of the blocking wall 6, and a cylindrical pouring wall 18 extending upward from a position radially inward of the mounting wall 16, Is formed. A male thread 20 is formed on the outer peripheral surface of the mounting wall 16 to cooperate with a female thread formed on the outer lid 4 described later. The pouring wall 18 extends upward from the mounting wall 16, and its upper end is curled outward so that the contents can be easily poured when the contents are consumed. An annular seal piece 22 that extends downward from the outer peripheral edge of the blocking wall 6 is formed on the lower surface of the blocking wall 6. The seal piece 22 has an outer peripheral surface that extends vertically downward and then extends downward and inclines radially inward, and an inner peripheral surface that extends substantially vertically downward. Further, an annular flange 24 extending radially outward from a boundary region between the mounting wall 16 and the seal piece 22 and a substantially cylindrical outer wall 26 are also disposed below the outer peripheral edge of the annular flange 24. An annular protrusion 28 is formed at the lower part of the inner peripheral surface of the outer wall 26, and a locking shoulder surface 30 facing downward is formed at the lower part of the outer peripheral surface.

  An engaged means 32 and a locked means 34 are further disposed on the upper surface of the blocking wall 6. It is important that the engaged means 32 is configured to extend upward from between the upstream end of the arc-shaped thin line 12 and the circular thin line 8 when viewed in the opening rotation direction adjacent to the connecting thin line 14. . In the illustrated embodiment, the engaged means 32 is constituted by a prism 36 having a rectangular cross-sectional shape. The upper ends of the engaged means 32 are spaced apart from each other toward the direction (ie, upward) away from the blocking wall 6 from both side edges when viewed in the opening rotation direction (ie, upstream in the clockwise direction in FIGS. 1 and 3). A pair of protruding flap pieces 38 extending in a slanting direction are formed (see in particular FIGS. 1 and 2). It is important that at least the base end portion (the lower end portion connected to the prism 36) of the pair of protruding flap pieces 38 is made of a thin piece and can be bent and deformed sufficiently easily. The pair of projecting flap pieces 38 cooperate with a pair of hanging flap pieces formed on the outer lid 4 as will be described later. The locked means 34 has a substantially cylindrical shape extending upward from the center of the blocking wall 6 and cooperates with a protrusion formed on the locking means of the outer lid 4 described later at the upper end portion thereof. An annular ridge 40 protruding outward in the radial direction is formed. The locked means 34 in the illustrated embodiment is gradually made thinner from the base end portion toward the tip end portion excluding the protrusion 40.

  4 and 5, the outer lid 4 that can be injected or compression-molded from an appropriate synthetic resin such as polyethylene or polypropylene, like the main body 2, has a circular top wall 42 and the top wall. A skirt wall 44 having a substantially cylindrical shape as a whole is suspended from the outer peripheral edge of 42. In the illustrated embodiment, the skirt wall 44 has a cylindrical upper part 46 that hangs down from the outer peripheral edge of the top wall 42, and a substantially frustoconical intermediate part that extends downwardly in a radially outward direction following the upper part 46. A part 48 and a cylindrical lower part 50 that hangs down from the intermediate part 48 are provided. An annular shoulder surface 52 is formed on the inner peripheral surface of the intermediate portion 48 and faces downward, extending substantially horizontally. A concave / convex shape 54 is formed on the outer peripheral surface of the upper portion 46 to prevent slipping of a finger hung thereon. A female thread 56 that cooperates with the male thread 20 formed on the mounting wall 16 of the main body 2 is formed on the inner peripheral surface of the upper portion 46. A fracture line 58 extending in the circumferential direction is formed in the middle portion of the lower portion 50 in the axial direction, and a tamper evidence skirt portion 60 is defined in the lower half portion of the lower portion 50. The fracture line 58 includes an arcuate score 62 extending in the circumferential direction at intervals in the circumferential direction and a bridge portion 64 existing between the arcuate scores 62. An annular locking piece 66 extending downward inward in the radial direction is disposed at the lower part of the inner peripheral surface of the tamper evidence skirt 60.

  A substantially cylindrical sealing piece 68 is formed on the inner peripheral edge of the top wall 42. The seal piece 68 has a length sufficient to be brought into close contact with the inner peripheral surface of the pouring wall 18 when the outer lid 4 is attached to the main body 2. On the inner surface of the top wall 42, an engaging means 70 and a locking means 72 are further disposed radially inward of the seal piece 68. It is important that the engaging means 70 has a form depending on the top wall 42. In the illustrated embodiment, the engaging means 70 includes a rectangular tube 74 whose cross-sectional shape is rectangular. 4 and 5, the square tube 74 has a front wall 74a formed on the downstream side (that is, the front side of the paper) when viewed in the opening rotation direction, and the downstream side (that is, the back side of the paper surface) when viewed in the direction. And a side wall 74c formed on both sides as viewed in the direction. Although both the front wall 74a and the rear wall 74b are rectangular, the rear wall 74b has a relatively shorter length depending on the top wall 42 than the front wall 74a, and is made relatively thick. The distance between the front wall 74a and the rear wall 74b is made somewhat larger than the width in the opening direction of the prism 36, and the distance between the side walls 74c facing each other in the radial direction is made somewhat larger than the width in the radial direction of the prism 36. . Further, as clearly shown in FIG. 5, a pair of hanging flap pieces 76 extending vertically from the both side edges toward the direction away from the top wall 42 (ie, downward) as seen in the opening rotation direction are clearly shown in FIG. Is formed. It is important that at least the base end portion (upper end portion connected to the square tube 74) of the pair of hanging flap pieces 76 is formed of a thin piece and is sufficiently easily bent and deformed. The pair of hanging flap pieces 76 cooperates with the pair of protruding flap pieces 38 formed on the main body 2 mentioned above. Further, the locking means 72 has a cylindrical shape extending downward from the center of the top wall 42, and has a lower end portion in the radial direction that cooperates with the annular protrusion 40 formed in the locked means 34 described above. An annular ridge 78 projecting in the direction is formed. The locking means 72 in the illustrated embodiment is gradually made thinner from the base end portion toward the tip end portion excluding the protrusion 78.

  The main body 2 and the outer lid 4 as described above are aligned with the locked means 34 of the main body 2, the locking means 72 of the outer lid 6, the prism 36 of the main body 2 and the square cylinder 74 of the outer lid 4, As shown in FIG. 6, the outer lid 4 is forcibly lowered with respect to the main body 2 until the annular shoulder surface 52 of the outer lid 4 comes into contact with the annular flange 24 of the main body 2. Thus, as shown in FIG. 6, the female thread 56 of the outer lid 4 elastically climbs over the male thread 20 of the main body 2 and is screwed into this. The locking piece 66 formed on the inner peripheral surface of the tamper evidence skirt 60 of the outer lid 4 extends downward inward in the radial direction before the outer lid 4 is combined with the main body 2. From the state, it is deformed so as to extend upward inward in the radial direction, and is positioned below the engagement shoulder surface 30 formed on the outer peripheral surface of the outer wall 26 of the main body 2. Alternatively, prior to combining the outer lid 4 with the main body 2, the locking piece 66 extending downward inward in the radial direction can be transformed into a state extending upward inward in the radial direction. . The seal piece 68 of the outer lid 4 enters the pouring wall 18 of the main body 2 and is brought into close contact with the inner surface of the pouring wall 18. Further, the locked means 34 of the main body 2 is gradually made thinner from the base end portion toward the tip end excluding the protrusion 40, and the locking means 72 of the outer lid 4 is protruded from the base end portion of the protrusion 78. The locked means 34 of the main body 2 elastically climbs over the annular ridge 78 formed at the lower end of the locking means 72 of the outer lid 4 due to being gradually made thinner toward the tip end except for It is possible to smoothly enter the locking means 72. Further, the engaged means 32 and the engaging means 70 interact. More specifically, the prism 36 of the engaged means 32 enters the square cylinder 74 of the engaging means 70, and the pair of protruding flap pieces 38 of the engaged means 32 move toward each other in the direction away from the closing wall 6. The pair of hanging flap pieces 76 of the engaging means 70 is deformed from the state of extending in the direction of being separated to the direction of being separated from the state of extending to the direction of being separated from each other toward the direction of approaching the blocking wall 6. Is deformed from a state extending vertically from the inner surface of the top wall 42 to a state extending toward each other toward the direction approaching the inner surface of the top wall 42. If necessary, prior to assembling the outer lid 4 to the main body 2, the pair of protruding flap pieces 38 of the engaged means 32 are inclined and extended in directions away from each other toward the direction away from the closing wall 6. From the state, the inner surface of the top wall 42 is deformed from the state in which the pair of hanging flaps 76 of the engaging means 70 extend vertically from the state in which the pair of hanging flaps 76 extend in the direction of being separated from each other toward the direction of approaching the blocking wall 6 It can also be deformed to extend in a direction approaching each other in a direction approaching. Then, the pair of projecting flap pieces 38 are passed through the pair of hanging flap pieces 76. When the outer lid 4 is lowered to the required position, that is, the position shown in FIG. 6 with respect to the main body 2, the outer lid 4 is locked to the upper end of the annular shoulder surface 30 formed on the outer peripheral surface of the main body 4. The piece 66 is locked, whereby the main body 2 and the outer lid 4 are mutually restrained. In the state shown in FIG. 6, the pair of protruding flap pieces 38 of the engaged means 32 are conveniently located above the pair of hanging flap pieces 76 of the engaging means 70 with a slight gap therebetween. . Furthermore, in the state illustrated in FIG. 6, the downstream side and the upstream side in the opening rotation direction of the prism 36 are both slightly spaced from the front wall 74 a and the rear wall 74 b of the square cylinder 74. Conveniently, the lower end of the rear wall 74b is positioned opposite the top of the prism 36.

  FIG. 6 also shows the mouth and neck portion 80 of the container to which the container lid constructed according to the present invention is applied. A locking jaw portion 82 that is bulged outward in the radial direction is formed at the upper portion of the outer peripheral surface of the mouth-and-neck portion 80 that is generally cylindrical. A well-known support ring 84 is also formed below the locking jaw portion 82. The container lid combined in the state shown in FIG. 6 is fitted to the mouth-and-neck part 80 by being fitted onto the mouth-and-neck part 80 and forcibly lowered to the position shown in FIG. At this time, the annular locking projection 28 formed on the inner peripheral surface of the outer wall 26 of the main body 2 elastically climbs over the locking jaw portion 82 of the mouth neck portion 80 and is locked thereto.

When the contents of the container are consumed, a finger is put on the skirt wall 44 of the outer lid 4 to open the outer lid 4 attached to the main body 2 in the opening direction (counterclockwise as viewed from above in FIG. 6). Rotate. When the outer lid 4 is rotated in the opening rotation direction, the square tube 74 of the outer lid 4 is moved in the right direction in FIG. 7b as shown in FIG. 7b, so that the rear wall 74b of the square tube 74 is a view of the prism 36. 7b is in contact with the left side surface (upstream in the opening rotation direction). When the outer lid 4 is further rotated in the opening rotation direction from the state shown in FIG. 7b, a force is applied to the upper end of the prism 36 from the lower end of the rear wall 74b of the square cylinder 74 as shown in FIG. 7c is tilted to the right (downstream in the opening direction) in FIG. 7c, and the upper end of the right side (downstream in the opening direction) in FIG. 7c of the prism 36 is brought into contact with the inner surface of the front wall 74a of the square tube 74 . Since the rear wall 74b of the square cylinder 74 is relatively thick, it is possible to apply a force to the prism 36 without being deformed by the reaction force from the prism 36 of the force applied when the outer lid 4 is rotated. When the outer lid 4 is further rotated in the opening rotation direction from the state shown in FIG. 7c, a further force is applied to the prism 36 on the left side (upstream in the opening rotation direction) in FIG. Thus, the prism 36 is further tilted to the right side (downstream in the opening rotation direction) in FIG. 7d. At this time, the upper end of the prism 36 is moved relatively downward and the prism 36 tends to move away from the square cylinder 74, but the pair of protruding flap pieces 38 formed at the upper end of the prism 36 and the lower end of the square cylinder 74 Since the prism 36 is restrained by the square tube 74 by the engagement with the formed pair of hanging flap pieces 76, the prism 36 cannot be retracted from the square tube 74. Therefore, when the outer lid 4 is rotated in the opening rotation direction, the prism 36 constrained by the square cylinder 74 is pulled upward in the direction inclined to the right side (downstream in the opening rotation direction) in FIG. The shearing force concentrates on the base end portion of the prism 36 tilted by the left side (upstream in the opening rotation direction) in FIG. 7d, and the connection thin line 14 formed at such a position as shown in FIG. 7d is broken. When the outer lid 4 is further rotated in the above direction from the state shown in FIG. 7d, the prism 36 is integrated with the square cylinder 74 as shown in FIG. 7e while breaking the circular thin line 8 and the arc-shaped thin line 12. 7e is moved to the right side (downstream in the opening rotation direction). Therefore, when the outer lid 4 is rotated in the opening rotation direction, the prisms 36 and the square cylinder 74 are rotated in the opening rotation direction, whereby the circular thin line 8 and the arc-shaped thin line 12 are broken all around. The removal region 10 is removed from the blocking wall 6 to form a discharge port. Thus, the connection thin line 14, the circular thin line 8 and the arc thin line 12 are sufficiently smoothly and easily broken as required.

  As the outer lid 4 is rotated in the opening rotation direction, the male thread 20 formed on the outer peripheral surface of the mounting wall 16 of the main body 2 and the female thread 56 formed on the inner peripheral surface of the upper portion 46 of the skirt wall 44 of the outer lid 4. The outer lid 4 is gradually raised by being gradually released from the screwing. However, in the illustrated embodiment, the tamper evidence skirt 60 defined in the lower part 50 of the skirt wall 44 of the outer lid 4 is formed with a locking piece 66 at the lower end of the inner peripheral surface thereof. When 66 is locked to the upper end of the locking shoulder surface 30 formed on the lower end of the outer peripheral surface of the outer wall 26 of the main body 2, the subsequent rise of the tamper evidence skirt 60 is prevented. As a result, when the outer lid 4 is further rotated in the opening rotation direction, only the portion of the skirt wall 44 excluding the tamper evidence skirt 60 is gradually displaced upward, and the circumferential break line 58 formed on the skirt wall 44 is thus displaced. The shearing force concentrates on the bridging portion 64, and the bridging portion 64 is broken. If desired, an additional break line extending in the axial direction is formed in the tamper evidence skirt 60, and when the outer lid 4 is opened, the bridging portion 64 in the circumferential breakable line 58 is not locally broken. The tamper evidence skirt 60 is left connected to the skirt wall 44, and the additional break line of the tamper evidence skirt 60 is broken so that the tamper evidence skirt 60 is expanded into an end band. It is also possible to release the locking of the locking piece 66 from the shoulder surface 30 so that the entire outer lid 4 including the tamper evidence skirt 60 is detached from the main body 2.

  After the removal region 10 is cut off from the blocking wall 6 of the main body 2 and the bridging portion 64 formed on the tamper evidence skirt 60 of the outer lid 4 is broken, the outer lid 4 is further rotated in the opening rotation direction. The skirt wall 44 excluding the top wall 42 of the outer lid 4 and the tamper evidence skirt 60 is raised freely with rotation and is completely separated from the main body 2. At this time, the removed removal region 10 and the outer lid 4 are not only engaged by the square cylinders 36 constituting the engaged means 32 and the square cylinders 74 constituting the engaging means 70 but also engaged by the main body 2. Since the stopping means 34 and the locking means 72 formed on the outer lid 4 are also locked, the removed removal region 10 is separated from the main body 2 together with the outer lid 4 without being detached from the outer lid 4. The removal region 10 that is broken and elongated can be lifted stably. Thereafter, the contents can be discharged through the discharge port formed in the closed wall 6 of the main body 2. After the required amount of content has been discharged, the removal region 10 including the prism 36 and the locking means 34 is detached from the outer lid 4 as necessary, and the outer lid 4 is fitted to the main body 2. Then, the female thread 56 formed on the inner peripheral surface of the upper portion 46 of the skirt wall 44 of the outer lid 4 by rotating in the closing direction is changed to the male thread 20 formed on the outer peripheral surface of the mounting wall 16 of the main body 2. After screwing together, the outer lid 4 can be mounted on the main body 2 again to close the discharge port. The upper end portion of the outer peripheral surface of the cylindrical seal piece 68 of the outer lid 4 is brought into close contact with the inner peripheral surface of the upper end portion of the pouring wall 18 of the main body 2, thereby achieving a sealing effect.

2: Main body 4: Outer lid 6: Blocking wall 8: Circular thin line 10: Removal region 12: Arc thin line 14: Connection thin line 32: Engagement means 34: Engagement means 36: Square pillar 38: Projection flap piece 42: Top wall 44: Skirt wall 70: Engaging means 72: Locking means 74: Square tube 76: Hanging flap piece 80: Mouth and neck

Claims (4)

A main body mounted on the container and an outer lid mounted on the main body, the main body closing a circular closing wall closing the mouth of the container, and a cylindrical mounting wall extending upward from the outer peripheral edge of the closing wall The closed wall is formed with a breakable circular thin wall line that defines a removal region, and an engagement means projecting upward from the removal region is disposed, and an outer periphery of the mounting wall A male thread is formed on the surface, and the outer lid has a top wall and a skirt wall depending from the top wall, and a female thread cooperating with the male thread is formed on the inner peripheral surface of the skirt wall. An engaging means for engaging with the engaged means is disposed on the inner surface of the top surface wall, and the closing wall of the main body is disposed radially inward of the circular thin wall line. Together with the breakable arcuate thin line extending concentrically with the circular thin line, and unscrewing the male thread and the female thread A container closure frangible connections thin line connecting the circular thin line is formed an upstream end of the arc-shaped thin line when viewed in the opening rotation direction of the outer cover relative to the body of the case,
The engaged means of the main body is composed of a column extending upward from between the upstream end of the arc thin line and the circular thin line when viewed in the opening rotation direction adjacent to the connection thin line. And
The engaging means of the outer lid is composed of a cylinder hanging from the top wall,
The interval between the front wall located downstream and the rear wall located upstream in the opening rotation direction of the cylinder is larger than the width in the opening rotation direction of the column, and the lower end of the rear wall of the cylinder is When the outer lid is rotated in the opening rotation direction with respect to the main body with the upper portion of the column being inserted into the lower portion of the cylinder, the rear cover of the cylinder is The column is tilted by the action of the wall so as to incline upward toward the opening direction.
A container lid characterized by that.   The closed wall of the main body is provided with a locking means extending upward from the center thereof, and the top wall of the outer lid is provided with a locking means depending from the center thereof, When the outer lid is attached to the main body, the outer lid is prevented from being displaced upwardly beyond a predetermined range with respect to the main body by the cooperation of the locking means and the locked means. The container lid according to claim 1.   The container lid according to claim 1, wherein the pillar is a prism, and the cylinder is a square cylinder.   At the upper end of the prism, a pair of projecting flap pieces extending obliquely downward from both side edges as viewed in the opening rotation direction with the upper part of the prism inserted into the lower part of the prism are attached The lower end of the square tube has a pair of slanted sides extending upward from both side edges as viewed in the opening rotation direction with the upper portion of the prism being inserted into the lower portion of the square tube. A hanging flap piece is attached, and the prism is prevented from being displaced relative to the rectangular tube downward beyond a predetermined range by the cooperation of the projecting flap piece and the hanging flap piece. The container lid according to claim 3.

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