WO2014109377A1

WO2014109377A1 - Lidded container

Info

Publication number: WO2014109377A1
Application number: PCT/JP2014/050275
Authority: WO
Inventors: 山田博; 南谷幸造; 柿内剛; 多田香織
Original assignee: 参天製薬株式会社; 伸晃化学株式会社
Priority date: 2013-01-11
Filing date: 2014-01-10
Publication date: 2014-07-17
Also published as: CN104884362A; JP2014148356A; TW201502019A; TWI605984B; JP6315994B2; CN104884362B

Abstract

Provided is a lidded container provided with an inner lid and a lid part with which a click sensation is easily set, and with which stable opening/closing operations of a cap are enabled. The present invention is provided with: a container main body; a cap-shaped inner lid which is capable of being screwed onto a neck part of the container main body, and which is provided with a cylindrical inner surface, and an outer surface having a polygonal shape; and an outer lid fitted to the outer surface of the inner lid. In an opening end of the inner lid, a plurality of protruded portions formed protruding and having the protrusion amounts thereof arranged, along the direction of the screwing axis, from a corner of the polygonal shape, and at least one bulging portion inwardly formed from the protruded portions are provided such that a fully screwed position of the inner lid is determined with respect to the container main body. In the container main body, a rotation inhibiting mechanism is provided which is formed outwardly protruding from the neck part of the container main body, and which is provided with: a first protrusion which is capable of having the bulging portion pass over the exterior thereof during screwing operations of the inner lid; and a second protrusion for restricting rotation of the protruded portions in a position in which the bulging portion has passed over the first protrusion.

Description

Container with lid

The present invention is a lid provided with a container main body, a cup-shaped inner lid that can be screwed to the neck portion of the container main body, and has a cylindrical inner surface, and an outer lid fitted to the outer surface of the inner lid. The present invention relates to a container with a lid, and a container with a lid provided with a container body and a lid part that can be screwed to a neck part of the container body.

As such a container with a lid, for example, there is one as shown in Patent Document 1. The container with a lid includes a container body that forms a liquid storage space, a bottomed cylindrical inner lid that can be screwed to the neck of the container body, and a bottomed cylinder that is integrally formed with the inner lid. And an outer lid. Further, the inner lid and the container main body include a locked portion that protrudes inward from the inner peripheral surface on the opening side of the inner lid, a first locking portion that protrudes outward from the neck portion of the container main body, and a first locking portion. Two locking portions are formed.

When the cap formed of the inner lid and the outer lid is screwed to the container body, the locked portion comes into contact with the first locking portion and climbs outward, and then the second locking portion. Rotation is restricted by abutting against. Since the desired click feeling can be obtained by elastically restoring the peripheral wall of the cap after the locked portion gets over the first locking portion, the user can sense that the cap is closed.

WO2012 / 105605

In such a conventional container with a lid, since both the inner lid and the outer lid are integral, both peripheral walls are elastically deformed as the locked portion of the inner lid is elastically deformed radially outward. To do. For this reason, it is necessary to design both strengths when setting the click feeling.
On the other hand, the inner lid shape may be changed according to the liquid injection port of the container, or the outer lid shape may be changed so as to be easily opened and closed. In changing the shape, the strength design is performed in consideration of the wall thickness of the inner lid and the outer lid in addition to the size of the locked portion, and the appearance shape is designed according to the wall thickness. As described above, every time the shape is changed, complicated design of both the inner lid and the outer lid is repeated, which is very troublesome.
For this reason, the inner lid structure which can simplify the intensity | strength design for obtaining a desired click feeling was calculated | required.

Therefore, an object of the present invention is to provide a lidded container including an inner lid and a lid portion that can easily set a click feeling and can be stably opened and closed.

The characteristic configuration of the container with a lid of the present invention includes a container body, a cup-shaped inner lid that can be screwed to the neck portion of the container body, and has a cylindrical inner surface and a polygonal outer surface, An outer lid fitted to the outer surface of the inner lid,
To determine the screwing completion position of the inner lid with respect to the container body,
At the opening end of the inner lid, a plurality of protrusions are formed to protrude from the corners of the polygonal shape along the screwing shaft direction, and at least formed inward from the protrusions. One bulge and
The container body is formed so as to protrude outward from the neck portion of the container body, and the bulging portion includes a first protrusion that can be moved outward when the inner lid is screwed, and the bulging portion. And a second protrusion that restricts rotation of the protrusion at a position over the first protrusion.

The present invention is provided with a projecting portion that projects from the opening end of the inner lid along the screwing shaft direction. For this reason, at the time of opening and closing the cap, the projecting portion that has received the outward pressing force from the first projection is elastically deformed, so that a click feeling can be obtained.
In setting the click feeling, it is necessary to design the strength of the elastically deformable member, but it is not necessary to consider the strength of both the inner lid and the outer lid, and only the strength of the protruding portion is set. Good. For this reason, a complicated strength design is not required, and the click feeling can be easily set.

On the other hand, repeating the screwing operation may cause elastic deformation of the protrusion due to the pressing force from the first protrusion, bending deformation of the protrusion due to rotational torque during the screwing operation, and the like.
According to this configuration, the protrusions are arranged at polygonal corners that have high rigidity and can secure a large amount of space among the opening ends of the inner lid. That is, since it becomes possible to form a protrusion having a sufficient thickness in the radial direction along the bent shape of the polygonal corner, it is limited while maintaining the elastic restoring force of the protrusion. The space can effectively exhibit the strength against the pressing force from the first protrusion and the strength in the rotation direction.
In addition, since the plurality of protrusions are provided with the same amount of protrusion from the polygonal corners, the inner cover can be placed in a balanced manner when the inner cover is placed on a horizontal surface. For this reason, the belt can be stably conveyed in the manufacturing process of the inner lid, and the manufacturing efficiency is increased.
In addition, when the inner lid is screwed into the container body, the protrusion is restricted by the second protrusion at the position where the bulging part gets over the first protrusion, so that the user senses that the cap is closed. can do.

In the above-described configuration, it is preferable that the outer lid is provided with an undercut that fits with the inner lid, and a flange portion having an outer surface that fits with the outer lid is provided on the outer peripheral side of the opening end. It is.

According to this configuration, the undercut of the outer lid and the flange portion of the inner lid are fitted together, thereby reducing rattling between the inner lid and the outer lid and increasing the stability during the screwing operation.

In the above-described configuration, it is preferable that a rib portion fitted to the outer lid is provided at a position between the bottom surface of the inner lid and the opening end portion of the outer surface of the inner lid.

According to this configuration, since the undercut of the outer lid and the flange portion and the rib portion of the inner lid are fitted together, the movement of the inner lid in the vertical and horizontal directions is restricted. The rattling can be further reduced.

In the above-described configuration, it is preferable that a protrusion protruding radially outward is provided in the vicinity of the base end portion of the protruding portion on the outer surface of the flange portion.

When the protruding part gets over the first protrusion or the rotation is restricted by the second protrusion, the relative movement of the two by the slight gap between the inner lid and the outer lid by the torque that the user rotates the cap However, the outer lid may rattle in the rotational direction with respect to the inner lid.
According to this configuration, by providing the protrusion on the flange portion, the contact force between the inner lid and the outer lid can be increased, and the rattling of the outer lid relative to the inner lid can be suppressed. In particular, the projections are arranged in the vicinity of the protruding portions, and the transmission path of the torque received from the first and second projections is set short. For this reason, the rotational torque is effectively canceled out by the contact force between the inner lid and the outer lid, and the propagation to a wide area of the inner lid is restricted, so that a sense of stability when opening and closing the cap is increased.

It is preferable that the protruding portion is provided with an inclined portion whose protruding amount decreases toward the rear end in the direction in which the inner lid is screwed.

In use, the cap abuts against the second protrusion many times to restrict rotation. Therefore, in order for the cap to function properly even if a large rotational torque is applied, the protrusion needs to have sufficient strength. For this reason, it is necessary to make the protruding portion as large as possible, but there is a limit in changing the size because it is necessary to match the shape of the container body.
According to this configuration, by providing the inclined portion in the protruding portion, the protruding portion can be configured as large as possible while avoiding contact with the second protrusion.

Another characteristic configuration of the lidded container of the present invention includes a container main body having a neck portion, a bottomed hole-like screwing portion screwed to the neck portion, and an opening end portion of the screwing portion. A polygonal end face provided on the opening side, and the lid part has a corner of the polygonal end face so as to determine a screwing completion position of the lid part with respect to the container body. A plurality of projecting portions projecting from the portion along the screwing axis direction and at least one bulging portion formed inwardly from the projecting portion, A first protrusion formed outwardly projecting from the neck of the container body, and capable of getting over the bulging portion when the lid is screwed, and the bulging portion extends over the first protrusion. The rotation prevention mechanism has a second protrusion that restricts the rotation of the protrusion at a position where the protrusion is overcome.
Further, the polygonal end surface is formed at the tip of a columnar portion protruding from the ceiling back surface of the lid portion having a cup shape toward the opening side of the lid portion, or from the opening side of the lid portion to the lid portion. The form which forms in a step-down state toward the top part side of is preferable.
Furthermore, it is preferable to provide an inclined portion with a small amount of protrusion toward the rear end in the direction in which the inner lid is screwed.

Also in this configuration, only the strength of the protruding portion needs to be set, so that a complicated strength design is not required, and the click feeling can be easily set. In addition, since the protrusions are arranged at the corners of the polygonal shape that has high rigidity and can secure a large amount of space among the end surfaces formed on the opening side of the lid, the strength of the protrusions is effective in a limited space. Can be demonstrated. Furthermore, by providing the inclined portion on the protruding portion, the protruding portion can be configured to be as large as possible while avoiding contact with the second protrusion, so that a stable cap opening and closing operation is possible.
In particular, in this configuration, since the inner lid is not provided and the polygonal end face is provided at the opening end of the screwing portion of the lid, the production efficiency is increased.

It is a whole perspective view of a container with a lid. It is sectional drawing of a container with a lid | cover. It is sectional drawing seen from the front of an inner cover. It is a side view of an inner lid. It is a perspective view of the opening edge part of an inner cover. It is a schematic diagram regarding the screwing operation to the container main body of the inner lid. It is a schematic diagram regarding the screwing operation to the container main body of the inner lid. It is a schematic diagram regarding the screwing operation to the container main body of the inner lid. It is a perspective view of an inner lid and a container main body. It is a figure which shows the opening edge part of the inner cover in another Embodiment 1. FIG. FIG. 10 is a perspective view of a lid in another embodiment 2. It is a perspective view of the cover part in another Embodiment 3. FIG.

Hereinafter, embodiments of a container 1 with a lid according to the present invention will be described with reference to the drawings. In this embodiment, the Example using the eyedrop container 1 which administers eyedrops to eyes as the container 1 with a lid | cover is shown. However, the present invention is not limited to the following embodiments, and various modifications can be made without departing from the scope of the invention. For example, the contents of the lidded container 1 are not limited to liquids such as eye drops, but may be solids such as powder and round particles.

1. Overall Configuration FIGS. 1 and 2 show an overall view of an eye drop container 1 (an example of a container 1 with a lid) according to the present embodiment. The eye drop container 1 has a container body 2 having a quadrangular prism shape that forms a liquid storage space 25, an inner plug 3 attached to the container body 2, and a cup-shaped inner lid 4 that can be screwed to the container body 2. And an outer lid 5 which is fitted to the inner lid 4 and whose outer shape is a quadrangular prism shape. A cap 6 is formed by fitting the inner lid 4 to the outer lid 5, and the inner lid 4 is configured to be detachable from the container body 2 by opening and closing the cap 6.

The container body 2 is subjected to blow molding or vacuum molding using a resin such as PET (polyethylene terephthalate), and a liquid storage space 25 is formed therein. The outer lid 5 is manufactured using an acrylic resin, an ethylene resin, or the like. The inner lid 4 and the inner plug 3 are manufactured using a resin such as polypropylene or polyethylene which is not easily deteriorated by electron beam sterilization.
As shown in FIGS. 1 and 2, the container main body 2 and the outer lid 5 are formed in a quadrangular prism-like outer shape having the same width and depth.
Since the user can hold the large outer surface of the outer lid 5 and perform the opening / closing operation, a large rotational torque can be obtained with a small rotational force. For this reason, the cap 6 can be easily opened and closed, and the eyedrop container 1 is excellent in convenience. On the other hand, a large rotational torque is applied to the inner lid 4 as compared with a normal eyedrop container. There is a high need to ensure.
In addition, a manufacturing method and a resin material are not restricted to this, It can select suitably. Further, the outer shape of the outer lid 5 may be any shape as long as a large rotational torque can be obtained with a small rotational force, for example, a polygonal shape such as a hexagonal shape or a bottomed cylindrical shape. .

2. Container Body As shown in FIG. 2, the container body 2 is provided on the side opposite to the bottom surface of the trunk portion 21, with the barrel portion 21 having a closed bottom surface forming a liquid storage space 25 such as a drug solution for eye drops. It has a cylindrical neck portion 22, a male screw portion 23 provided spirally from the neck portion 22 to the inner plug 3, and a cylindrical opening top portion 24 that is open so that the inner plug 3 can be fitted therein. In the eye drop container 1, for example, the male thread portion 23 of the container body 2 is formed by a double thread.

The body portion 21 has a rectangular outer cross section. The user presses the vicinity of the center of the torso 21 to increase the internal pressure of the liquid storage space 25, raise the liquid toward the inner plug 3, and drop the ophthalmic solution into the eye from the liquid injection port 34.
As shown in FIGS. 2 and 6, the neck portion 22 is provided with a protruding portion 28 that protrudes in the radially outward direction. Although the screwing operation of the inner lid 4 will be described later, as shown in FIGS. 6 to 8, the protruding portion 28 gets over the bulging portion 45 while elastically deforming the protruding portion 44 of the inner lid 4 radially outward. The first protrusion 26 and the second protrusion 27 that restricts the rotation of the protrusion 44 at a position where the bulging portion 45 gets over the first protrusion 26. That is, as shown in FIG. 8, the first protrusion 26 and the second protrusion 27 constituting the protrusion 28 sandwich the bulging portion 45 of the inner lid 4, thereby completing the screwing of the cap 6 to the container body 2. To do.
Further, as shown in FIG. 9, the second protrusion 27 has an inclined surface 29 in which the protruding amount in the radially outward direction of the neck portion 22 gradually decreases. For this reason, when the cap 6 is opened and closed, the contact between the second protrusion 27 and the protruding portion 44 can be avoided by the inclined surface 29. Therefore, even if the thickness of the protruding portion 44 is increased in order to increase the rigidity, it is possible to prevent the cap 6 from being closed on the way.

3. Inner plug The inner plug 3 is provided with a cylindrical outer wall portion 31, a throttle portion 32 that restricts the flow rate of the liquid inside the outer wall portion 31, and a liquid injection port 34 that is formed so as to be able to drop a fixed amount while holding the liquid. Nozzle part 33. The inner plug 3 is manufactured separately from the container body 2 and is fixed to the container body 2 by fitting the outer surface of the outer wall portion 31 and the inner surface of the opening top 24. In addition, it is good also as a bottle pack (trademark) which shape | molded the container main body 2 and the inner stopper 3 integrally by blow fill seal molding.
In the present embodiment, the liquid injection port 34 that discharges the ophthalmic solution is provided. However, the liquid injection port 34 that discharges particulate matter may be used, or the inner plug 3 may not be provided.

4). Inner Lid FIGS. 3 and 4 show a cross-sectional view and a side view of the inner lid 4. FIG. 5 shows a perspective view of the inner lid 4 as viewed from the opening end 43 side.
The inner lid 4 is configured in a cup shape having a cylindrical inner surface and an outer surface forming a rectangular opening end portion 43 with cut corners.
The inner surface of the inner lid 4 includes a helical female screw portion 41 that can be screwed to the male screw portion 23 of the container body 2 and a sealing portion 42 that protrudes inward to seal the liquid injection port 34 of the inner plug 3. Have. Further, the inner lid 4 is formed with an opening end portion 43 that is open on the side opposite to the sealing portion 42.

Four projecting

portions

44 and 49 are formed at the corner portion 46 of the opening end portion 43 so as to project along the screwing shaft direction of the cap 6 with the same amount of projection. Since these

protrusions

44 and 49 are arranged so as to face each other and have the same amount of protrusion, for example, when the inner lid 4 is placed on a horizontal surface, it can be placed in a balanced manner. For this reason, when the belt is transported in the manufacturing process of the inner lid 4, the inner lid 4 is hardly tilted and is stably transported, so that the manufacturing efficiency is increased.
Further, in order to ensure the strength of the projecting portion 44 in the rotation direction, the projecting portion 44 is arranged at a corner portion 46 of the rectangular opening end portion 43 that has high rigidity and can secure a large space. That is, the protrusion 44 has a sufficient thickness in the radial direction along the bent shape of the rectangular corner 46. For this reason, it is the structure which can ensure thickness most easily in the limited space, and can exhibit the intensity | strength of the protrusion part 44 effectively.
Furthermore, the protrusion part 44 has the bulging part 45 bulged and formed toward an inner side. Like the protrusion 44, the bulging part 45 is provided at the corner 46 of the rectangular opening end 43, thereby ensuring a large thickness and increasing rigidity. The bulging portion 45 is sandwiched between the first protrusion 26 and the second protrusion 27 and the rotation is reliably restricted.

In the present embodiment, as shown in FIG. 9, the protruding portion 44 forms an inclined portion 47 whose protruding amount decreases toward the rear end in the direction in which the inner lid 4 is screwed. For this reason, when the cap 6 is opened and closed, the inclined portion 47 can avoid contact between the second protrusion 27 and the protruding portion 44. Therefore, even if the protruding portion 44 is configured to be as large as possible in order to further increase the rigidity, it is possible to prevent the cap 6 from being closed halfway.

The outer surface of the cup-shaped inner lid 4 includes a bottom surface 48 that is in contact with the outer lid 5 on the side opposite to the opening end 43, a flange portion 431 that protrudes annularly on the outer peripheral side of the opening end 43, and a bottom surface 48 and a flange. A rib portion 432 having a thickness in the circumferential direction at a position near the middle of the portion 431.
When the inner lid 4 is fitted into the outer lid 5, the bottom surface 48 comes into contact with the upper part of the inner surface of the outer lid 5, whereby the inner lid 4 and the outer lid 5 are positioned along the screwing axis direction. Further, the

undercuts

51 and 52 of the outer lid 5 are fitted to both the flange portion 431 and the rib portion 432, so that the movement of the inner lid 4 in the vertical and horizontal directions is restricted, and the sense of stability is enhanced. For this reason, during the screwing operation of the cap 6, rattling between the inner lid 4 and the outer lid 5 can be reduced. That is, the fitting between the inner lid 4 and the outer lid 5 is configured to fit the flange portion 431 and the rib portion 432 and the

undercuts

51 and 52 so that the protruding portion 44 can be elastically deformed radially outward. A gap is provided between the protruding portion 44 and the inner surface of the outer lid 5.
In addition, although the rib part 432 in this embodiment was provided in the middle vicinity with respect to the screwing axial direction of the inner lid 4, if it is a position between the bottom face 48 and the flange part 431, it can change suitably. Yes, a plurality of rib portions 432 may be provided. For example, various modifications are possible as long as the inner lid 4 and the outer lid 5 can be prevented from rattling, such as by providing a protrusion on the outer surface of the inner lid 4.

When the cap 6 is screwed, the protrusion 44 contacts the second protrusion 27 and the rotation of the inner lid 4 is restricted. However, if the user does not stop the rotation of the cap 6, the undercut 51 of the outer lid 5 is performed. And the flange portion 431 of the inner lid 4 may be loosely fitted, and the outer lid 5 may rattle in the rotational direction with respect to the inner lid 4.
In the present embodiment, a protrusion 433 protruding radially outward is provided in the vicinity of the proximal end portion of the protruding portion 44 on the outer surface of the flange portion 431, and another protrusion 433 is provided on the same side. For this reason, the contact force between the inner lid 4 and the outer lid 5 can be increased, and the rattling of the outer lid 5 with respect to the inner lid 4 can be suppressed. Further, since the protrusion 433 is interposed in a slight gap between the flange portion 431 and the undercut 51 of the outer lid 5, an assembly error of the inner lid 4 with respect to the outer lid 5 is allowed.
A plurality of protrusions 433 may be provided over the outer periphery of the flange portion 431.

5. As shown in FIGS. 1 and 2, the outer lid 5 has a rectangular columnar outer surface whose width and depth are the same as those of the body portion 21 of the container body 2, and an inner surface to which the inner lid 4 is fitted. I have.

The inner surface of the outer lid 5 has

undercuts

51 and 52 with larger inner diameters at positions corresponding to the flange portion 431 and the rib portion 432 of the inner lid 4. By fitting both the

undercuts

51 and 52 of the outer lid 5 and the flange portion 431 and the rib portion 432 of the inner lid 4, the movement of the inner lid 4 is restricted and the sense of stability is enhanced.

6). Anti-rotation mechanism Next, an anti-rotation mechanism for determining the screwing completion position of the inner lid 4 with respect to the container body 2 will be described with reference to FIGS. 6 to 8 are drawings showing the opening end portion 43 of the inner lid 4 and the neck portion 22 of the container body 2 from before the bulging portion 45 starts to get over the first protrusion 26 to when the screwing is completed. is there.
In the present embodiment, the bulging portion 45 is sandwiched between the first protrusion 26 and the second protrusion 27 formed on the neck portion 22 of the container body 2, so that the inner lid 4 and the container body 2 are screwed together. An anti-rotation mechanism that determines the completion position is provided. The rotation prevention mechanism includes a protrusion 44 and a bulging portion 45, and a first protrusion 26 and a second protrusion 27.

First, when a predetermined amount of a cap 6 formed by fitting the inner lid 4 to the outer lid 5 is screwed into the container body 2, the bulging portion 45 contacts the side surface of the first projection 26 as shown in FIG. It comes into contact and becomes a screwing start position.
Next, when the user further turns the cap 6, the bulging portion 45 gets over the outer surface of the first protrusion 26. At this time, since the bulging portion 45 starts to get over the first protrusion 26, a bending force due to rotational torque is applied to the protruding portion 44 and the bulging portion 45. Further, the bulging portion 45 receives a pressing force from the first protrusion 26, and as shown in FIG. 7, the protruding portion 44 and the bulging portion 45 are elastically deformed in the radially outward direction.
Next, when the cap 6 is rotated, as shown in FIG. 8, the projecting portion 44 comes into contact with the side surface of the second protrusion 27 in the screwing direction to reach the screwing completion position. When the screwing is completed, the rotation of the protrusion 44 is restricted by the second protrusion 27, and the user senses that the cap 6 is closed.

Further, the user can obtain a desired click feeling by the elastic restoring force of the protruding portion 44 when the bulging portion 45 gets over the first protrusion 26. For this reason, it can be easily known that the screwing has been completed. In particular, since the protruding portion 44 is formed so as to protrude in the screwing axis direction as in this embodiment, the user can feel a crisp sound and moderate vibration due to elastic restoring force, and a comfortable click feeling. Can be obtained.

When the bulging portion 45 moves from the screwing start position to a position where the bulging portion 45 gets over the first protrusion 26, a bending force for bending the protruding portion 44 outward is generated by the rotational torque of the cap 6. If it is a container that repeatedly opens and closes like the eye dropper container 1, a bending force is repeatedly generated, and there is a risk that the root of the projecting portion 44 may crack and lose its restoring force and deform.
However, as described above, the protruding portion 44 is arranged at the corner portion 46 of the rectangular opening end portion 43 where the rigidity is the highest and the thickness is easily secured, and the elastic restoring force is reduced due to the crack due to bending deformation. It is difficult to invite.

When the bulging portion 45 gets over the first protrusion 26, it receives a pressing force in the radially outward direction from the first protrusion 26. At this time, for example, when the projecting portion 44 is formed in a straight line along the circumferential direction of the opening end portion 43, the root of the projecting portion 44 is easily bent by the pressing force. If it receives, there is a possibility that the base of the protrusion 44 may crack.
However, as described above, the projecting portion 44 is disposed along the bent shape of the corner portion 46 and has a sufficient thickness in the radial direction, so that the projecting portion is pressed by the pressing force from the first protrusion 26. The root of 44 is difficult to bend and the risk of cracks can be reduced.

When the screwing is completed, when the user rotates the cap 6 with a large torque, the protrusion 44 receives a strong reaction force from the side surface of the second protrusion 27. For this reason, the protrusion 44 is bent and deformed, and the rotation restricting function by the second protrusion 27 may be impaired.
However, as described above, the protrusions 44 are arranged at the corners 46 of the opening end 43 formed in a rectangular shape to ensure a sufficient thickness, so that the rotation is reliably restricted by the second protrusions 27. Is done.
On the other hand, if the protruding portion 44 is made too large, there is a possibility that it contacts the other second protrusion 27 provided opposite to the radial direction of the second protrusion 27 that restricts the rotation of the bulging portion 45.
However, as shown in FIG. 9, contact between the other second protrusion 27 and the protruding portion 44 can be avoided by providing the protruding portion 44 with the inclined portion 47. Therefore, even if the protruding portion 44 is configured to be as large as possible in order to further increase the rigidity, it is possible to prevent the cap 6 from being closed halfway.

By providing the anti-rotation mechanism in the present embodiment, elastic deformation and bending deformation can be effectively suppressed, and a stable opening / closing operation of the cap 6 can be achieved while obtaining a desired click feeling.

[Another embodiment 1]
As shown in FIG. 10, the opening end 43 of the inner lid 4 may have a rectangular shape, and the protruding

portions

44 and 49 may be formed to protrude from the rectangular corner portion 46. Thereby, since the thickness of the protruding portion 44 and the bulging portion 45 can be easily secured and the rigidity is increased, the cap 6 can be screwed more stably.

In the above-described embodiment, the cap 6 is configured by the inner lid 4 and the outer lid 5, but an example in which the cap 6 is integrally molded will be described below. In order to facilitate understanding of the drawings, the same reference numerals as those in the above-described embodiment are given, but there is no particular limitation.

[Another embodiment 2]
As shown in FIG. 11, the cap 6 (lid portion) of the present embodiment is formed in a cup shape with the ceiling back surface 62 and the outer peripheral wall portion 65, protrudes from the ceiling back surface 62 toward the opening side of the cap 6, and has a polygonal shape. A columnar portion 64 having an outer shape is formed. The columnar portion 64 is provided on the bottomed hole-like female screw portion 41 (screwed portion) that is screwed to the neck portion 22 of the container main body 2, and the opening end portion 61 of the female screw portion 41 at the tip. And a polygonal end face 63. The outer surface of the columnar portion 64 and the inner surface of the outer peripheral wall portion 65 are formed at a predetermined interval so that the protruding portion 44 can bend and deform when the cap 6 is screwed.

Two protrusions 44 are formed on the corner 46 of the polygonal end surface 63 so as to protrude along the screwing axis direction of the cap 6 so that the protrusions are aligned, and bulge inward from the two protrusions 44. The bulging part 45 to be formed is formed. Further, the protruding portion 44 forms an inclined portion 47 whose protruding amount decreases toward the rear end in the direction in which the cap 6 is screwed. Note that, as in the above-described embodiment, two protrusions 49 may be provided that are formed so that the protrusions are aligned along the screwing axis direction of the cap 6. It is not limited.

The end surface 441 of the protruding portion 44 is on the same plane as the end surface 651 of the outer peripheral wall portion 65, or is at least retreated from the end surface 651 toward the ceiling back surface 62. That is, the protrusion 44 is included in the cap 6 and contact during the screwing operation is avoided, so that the strength of the protrusion 44 does not decrease. Moreover, since the cap 6 is integrally molded, the production efficiency is increased. Other functions and effects are the same as those of the above-described embodiment.

[Another embodiment 3]
In this embodiment, as shown in FIG. 12, the single wall part 66 in which the columnar part 64 and the outer peripheral wall part 65 in another embodiment 2 are integrally formed is provided. In this case, the polygonal end surface 63 is formed by providing a stepped portion 67 on the wall portion 66. That is, the polygonal end face 63 is formed in a stepped-down state from the opening side of the cap 6 toward the top portion 68 side of the cap 6. In addition, two projecting portions 44 are formed at the corners 46 of the polygonal end surface 63 at a predetermined distance from the stepped portion 67 that can be bent and deformed. Further, the end surface 441 of the protruding portion 44 is on the same plane as the upper surface of the stepped portion 67, or is at least retracted toward the top portion 68. Therefore, the same operational effects as those of the second embodiment are obtained in this embodiment. As in the above-described embodiment, two protrusions 49 may be provided that are formed with the same protrusion amount along the screwing axis direction of the cap 6, and the number of installations is particularly limited by providing one protrusion 49. It is not limited.

[Other Embodiments]
(1) The opening end 43 of the inner lid 4 and the end face 63 of the cap 6 can be variously modified as long as they have a polygonal corner 46 such as a hexagon.
(2) In the embodiment described above, the two protruding portions 44 and the bulging portion 45 are provided and arranged. However, for example, one protruding portion 44 and one bulging portion 45 may be provided and arranged. In addition, various modifications can be made without departing from the object of the present invention, such as providing three protruding portions 44 and three bulging portions 45.
(3) In the above-described embodiment, the quadrangular prism-shaped cap 6 is configured. However, it may have any shape such as a cylindrical shape.

The present invention is applicable to containers used for applications such as eye drops, cosmetics, veterinary drugs, etc., as containers with lids that are used repeatedly by opening and closing operations.

1 Eye drop container (container with lid)
2 Container body 22 Neck part 26 First protrusion (protrusion part)
27 Second projection (projection)
4 Inner lid 41 Female thread part (screwing part)
43 Open end 431 Flange part 432 Rib part 433

Projection

44, 49 Projection part 45 Expansion part 46 Corner part 47 Inclination part 48 Bottom face 5

Outer lid

51, 52 Undercut 6 Cap (lid part)
61 Open end 62 Ceiling back surface 63 End surface 64 Columnar portion 67 Stepped portion 68 Top portion

Claims

A container body;
A cup-shaped inner lid that is screwable to the neck of the container body, and has a cylindrical inner surface and a polygonal outer surface;
An outer lid fitted to the outer surface of the inner lid,
To determine the screwing completion position of the inner lid with respect to the container body,
At the opening end of the inner lid, a plurality of protrusions are formed to protrude from the corners of the polygonal shape along the screwing shaft direction, and at least formed inward from the protrusions. One bulge and
The container body is formed so as to protrude outward from the neck portion of the container body, and a first protrusion capable of getting over the bulge portion when the inner lid is screwed,
A lidded container provided with a rotation prevention mechanism having a second protrusion that restricts the rotation of the protrusion at a position where the bulging portion has overcome the first protrusion.
The lid according to claim 1, wherein an undercut for fitting with the inner lid is provided on the outer lid, and a flange portion having an outer surface for fitting with the outer lid is provided on the outer peripheral side of the opening end. container.
3. The container with a lid according to claim 2, wherein a rib portion fitted to the outer lid is provided at a position between the bottom surface of the inner lid and the opening end portion of the outer surface of the inner lid.
The container with a lid according to claim 2 or 3, wherein a protrusion protruding in a radially outward direction is provided in the vicinity of a proximal end portion of the protruding portion of the outer surface of the flange portion.
The lidded container according to any one of claims 1 to 4, wherein the protruding portion is provided with an inclined portion whose protruding amount decreases toward a rear end in a direction in which the inner lid is screwed.
A container body having a neck,
A bottomed hole-like threaded portion that is screwed to the neck portion, and a polygonal end surface provided at the opening end portion of the threaded portion, and a lid portion provided on the opening side,
In order to determine the screwing completion position of the lid with respect to the container body,
The lid portion has a plurality of protrusions formed so as to protrude from the corners of the polygonal end face along the screwing shaft direction, and at least one formed inward from the protrusions. Having a bulging portion,
The container body is formed so as to protrude outward from the neck portion of the container body, and a first protrusion capable of climbing outwardly when the lid is screwed,
A lidded container provided with a rotation prevention mechanism having a second protrusion that restricts the rotation of the protrusion at a position where the bulging portion has overcome the first protrusion.
The container with a lid according to claim 6, wherein the polygonal end surface is formed at a tip of a columnar part protruding from a ceiling back surface of the lid part having a cup shape toward an opening side of the lid part.
The container with a lid according to claim 6, wherein the polygonal end surface is formed in a stepped-down state from an opening side of the lid portion toward a top portion side of the lid portion.
The lidded container according to any one of claims 6 to 8, wherein the projecting portion is provided with an inclined portion whose projecting amount decreases toward the rear end in the direction in which the lid portion is screwed.