JP6461415B1 - Packaging container and packaging container lid - Google Patents

Abstract

The present invention provides a packaging container and a packaging container lid capable of eliminating the difficulty of mounting a cap on a container body and preventing the cap from over-rotating.
A container body has a male threaded portion formed on the outer surface of the neck portion, a collar portion, and a circumferential space having a U-shaped cross section, and the lid body has a cylindrical portion, an opening / closing lid, and a stopper rib. A notch part into which the stopper rib can be fitted is formed in the collar part of the container body, the stopper rib is positioned on the container shoulder part, and the opening / closing lid is locked in the closed state when the male screw part and the female screw part are screwed together. In a state where the stopper rib is in contact with the vertical rib and the male screw portion and the female screw portion are not screwed together, the lock of the open / close lid is released.
[Selection] Figure 2

Description

  The present invention relates to a packaging container having a lid that opens and closes an opening, and a packaging container lid that closes the opening of the container.

  In so-called wide-mouthed plastic containers that contain large solids such as gums and tablets, the cap is hinged to the container body and sealed to prevent the cap (lid) from being lost or misplaced. In order to improve performance, it is known that the cap is screwed to the container body and the cap cannot be opened when the screw is tightened, but the cap can be opened with the screw loosened by a certain amount. (See Patent Documents 1, 2, and 3).

  However, the above-described conventional resin container has a problem that accurate positioning is difficult when the cap is attached to the container body. In addition, if the cap screw is forcibly loosened when it is loosened, it will overturn the stopper that regulates a certain amount of loosening and will rotate more than necessary, and the cap and container body will again be turned manually by the user. It was necessary to set again.

JP-A-8-337256 JP 2013-249120 A JP 2006-168765 A

  SUMMARY OF THE INVENTION The present invention provides a packaging container and a packaging container lid that can eliminate the difficulty of mounting the cap on the container body of the above-described prior art and can reliably prevent over-rotation of the cap. It is for the purpose.

  In order to achieve the above object, a first invention of the present application is a packaging container comprising a resin container body having an opening at the neck and a resin lid for opening and closing the opening, The container body includes a male screw part formed in an upper region of the outer surface of the neck part, a flange part located below the male screw part and having an outer diameter larger than the outer diameter of the male screw part, and the hook part A circumferential space having a U-shaped cross section formed between the shoulder portion of the container body and the lid body is hinged to the cylindrical portion and the cylindrical portion. An opening / closing lid that opens and closes the opening; and a stopper rib that protrudes toward an inner side of the cylindrical portion at a lower end of the cylindrical portion, and the male screw is provided on an inner peripheral surface of the opening / closing lid. An annular convex part formed with a female thread part to be screwed with the part protrudes, and the stopper part is formed on the flange part of the container body. A notch that can be inserted and passed through is formed, and the stopper rib comes into contact with the U-shaped peripheral space at the position where the notch is formed, so that the container body does not exceed the container body. A vertical rib for restricting rotation is formed, the stopper rib is positioned on the shoulder portion of the container body, and the open / close lid is locked in a closed state in a state where the male screw portion and the female screw portion are screwed together, The opening / closing lid is unlocked in a state where the stopper rib is in contact with the vertical rib and the male screw portion and the female screw portion are not screwed together.

  In order to achieve the above object, the second invention of the present application is a plastic packaging container lid that opens and closes the opening with respect to a container body having an opening, and the lid includes the container body. An intermediate connection member that is non-rotatably fixed to the neck portion of the head and a lid member that is screw-engaged with the intermediate connection member, and the intermediate connection member is a male screw portion formed in an upper region of the outer surface An upper collar portion having an outer diameter larger than an outer diameter of the male screw portion formed below the male screw portion, and a lower step portion forming a U-shaped peripheral space between the upper collar portion and The lid member includes a tubular portion, an opening / closing lid that is hinged to the tubular portion to open and close the opening, and a lower end of the tubular portion. A stopper rib projecting inwardly, and the opening / closing lid has an external thread on the inner peripheral surface. An annular convex portion formed with a female screw portion to be screwed is projected, and the upper flange portion of the intermediate connecting member is formed with a notch portion through which the stopper rib can be fitted and passed, and the U-shape. A vertical rib is formed in the circumferential space to restrict over-rotation of the lid member with respect to the intermediate connecting member by contacting the stopper rib at a position where the notch is formed. Located in the lower step portion of the connecting member, in a state where the male screw portion and the female screw portion are screwed together, the open / close lid is locked in a closed state, and the stopper rib is in a position to contact the vertical rib, The opening / closing lid is unlocked in a state where the male screw portion and the female screw portion are not screwed together.

  According to the first and second inventions of the present application, when the lid (or lid member) is attached to the container main body (or intermediate connection member), the set position can be easily and reliably known by the notch, The vertical ribs prevent over-rotation of the lid (or lid member) and can reliably stop a certain amount of relaxation.

  Further, according to an embodiment in which the convex step portion is formed in the connection region between the inclined step portion and the horizontal portion, the fact that the lid (or the lid member) has reached a certain amount of relaxed state is indicated by a “click”. "And the vibration transmitted to the hand can notify the user, and the stop position (position where the lid can be opened and closed) can be maintained.

Whole perspective view of the packaging container according to the first embodiment of the first invention of the present application (with the open / close lid closed) Whole perspective view of the packaging container according to the first embodiment of the first invention of the present application (a state where the opening / closing lid can be opened and a state where the opening / closing lid is opened) Sectional drawing of the packaging container which concerns on 1st embodiment of this invention 1st invention (the state which the opening-and-closing lid closed) Sectional drawing of the packaging container which concerns on 1st embodiment of this invention 1st invention (state which an opening-and-closing lid opens) Partially enlarged perspective view of the container body according to the first embodiment of the first invention of the present application. Sectional drawing of the stopper rib retaining portion according to the first embodiment of the first invention of the present application Sectional drawing of the inclination step part which concerns on 1st embodiment of this invention 1st invention The top view of the lid concerning a first embodiment of the 1st invention of this application Sectional drawing of the cover which concerns on 1st embodiment of this-application 1st invention. The developed view which shows the positional relationship of the stopper rib which concerns on 1st embodiment of this invention 1st invention, an inclination step part, and a vertical rib. Partially enlarged perspective view of a container body according to the second embodiment of the first invention of the present application. The top view of the lid concerning a second embodiment of the 1st invention of this application Sectional drawing of the cover which concerns on 2nd embodiment of this invention 1st invention Sectional drawing of the state which the container main body and cover body which concern on 2nd embodiment of this invention 1st invention engaged. The partially expanded sectional view of the state which the container main body and cover body which concern on 2nd embodiment of this invention 1st invention engaged. Sectional drawing which shows the state which engagement of the container main body and lid which concern on 2nd embodiment of this invention 1st invention is cancelled | released, and an open / close lid is opened Whole perspective view of packaging container according to embodiment of the second invention of the present application (open / close lid opened) Sectional drawing of the packaging container which concerns on embodiment of this-application 2nd invention (the state which the opening-and-closing lid closed) Sectional drawing of the container for packaging which concerns on embodiment of this-application 2nd invention (the state which the opening-and-closing lid opened) The figure which shows the modification 1, the modification 2, and the modification 3 which do not have an inclination step part

  Hereinafter, embodiments of the present invention will be described in detail. FIGS. 1-10 is a figure for demonstrating the resin-made packaging containers which concern on 1st embodiment of this invention 1st invention, FIG. 1 is the whole perspective view, Comprising: The state which the opening-and-closing lid | cover closed FIG. 2 shows a state where the opening / closing lid can be opened and a state where the opening / closing lid is opened.

  The resin packaging container 1 shown in the present embodiment is a so-called wide-mouth container, and is a container for containing food such as gum and large solids such as drugs inside. The lid 3 is engaged with the upper part of the container body 2 by a screw type, and is in the state shown in FIG. 1, that is, the lid 3 is rotated clockwise with respect to the container body 2 and screwed to the end. In the state shown in FIG. 2, that is, the lid 3 is rotated counterclockwise counterclockwise by a predetermined angle with respect to the container body 2 and the screw is loosened. It can be opened.

The structure for having the said function is demonstrated based on FIGS.
Initially, the structure of the container main body 2 is demonstrated based on FIGS. The container body 2 is formed with a male screw portion 5 for attaching the lid 3 to the upper region of the outer side surface of the neck portion, and an outer diameter larger than the outer diameter of the male screw portion 5 is located below the male screw portion 5. A flange portion 6 having a diameter is formed, and a circumferential space X having a U-shaped cross section is formed between the shoulder portion of the container body 2 and a position below the flange portion 6.

  As shown in FIG. 5, a part of the collar portion 6 in the circumferential direction is notched by the notch portion 14, and a space communicating with the U-shaped circumferential space X is formed. Below the cutout portion 14, vertical ribs 16 are provided so as to partition the U-shaped peripheral space X so as to prevent over-rotation of a stopper rib 11 described later. The said vertical rib 16 is installed in the lower right position of the notch part 14 when the container main body 2 is seen from the front.

  As shown in FIG. 6, a wedge-shaped stopper rib retaining portion 15 is formed on the inner side of the notch portion 14 so as to prevent the stopper rib 11 (described later) from slipping out and press-fit downward from the notch portion 14. The stopper rib 11 (described later) is restricted so that it does not come out of the notch 14 again.

  As shown in FIG. 6 (a), the stopper rib retaining portion 15 has a wedge shape with a right-angled cross section, and has an inclined surface that inclines outward from the substantially middle position in the thickness direction of the flange portion 6, A stopper rib 11 (described later) is guided by the inclined surface, and its bottom surface (corresponding to the base of a right-angled triangle in cross section) is flush with the lower surface of the flange 6.

  The reason why the inclined surface is extended from a substantially intermediate position in the thickness direction of the flange portion 6 is that when the inclined surface of the stopper rib retaining portion 15 is continuously formed from the upper plane of the flange portion 6, the stopper rib 11 ( Since it is difficult to understand that (described later) is located in the notch portion 14, by providing a step between the upper plane of the flange portion 6 and the inclined surface, the stopper rib 11 (described later) falls into the notch portion 14, This is for facilitating the alignment between the stopper rib 11 (described later) and the notch portion 14.

  For the reason why the bottom surface of the stopper rib retaining portion 15 is the same plane as the lower surface of the flange portion 6, refer to the description of FIG. 6 (b) and 6 (c) show a modification of the stopper rib retaining portion 15, and the stopper rib retaining portion 15 is limited to the configuration shown in FIG. 6 (a). It is not something. Further, as long as the stopper rib 11 (described later) has a retaining effect, a configuration other than that illustrated in FIGS. 6B and 6C may be used.

  As shown in FIG. 7, a horizontal portion 19 and an inclined step portion 17 following the horizontal portion 19 are formed between the vertical rib 16 near the center in the height direction and the shoulder portion 7 of the container body 2. A convex step 18 is formed in the connection region with the step. The horizontal portion 19, the inclined step portion 17, and the convex step portion 18 are surfaces for guiding the stopper rib 11 (described later).

  The above-described horizontal portion 19 has the same shape as the cutout portion 14 in a plan view of the container body 2, and the relationship between the cutout portion 14, the horizontal portion 19, and the vertical rib 16 (if the stopper rib retaining portion 15 is ignored). ), Each virtual surface of a virtual space made of a rectangular parallelepiped is formed.

  Next, the structure of the lid 3 will be described with reference to FIGS. The lid 3 includes a cylindrical portion 8, an opening / closing lid 10 hinged to the cylindrical portion 8 by a hinge connecting portion 9 to open and close the opening of the container body 2, and a cylindrical portion at the lower end of the cylindrical portion 8. The above-described stopper ribs 11 protrude in two locations toward the inner side of the plate 8. As shown in FIGS. 2 and 9, the opening / closing lid 10 has an annular convex portion 13 in which a female screw portion 12 that engages with a male screw portion 5 formed on the container body 2 is formed on the inner peripheral surface. Is projected, and the opening of the container body 2 is sealed by the space substantially surrounded by the annular convex portion 13.

  In the present embodiment, the male screw portion 5 formed on the container body 2 and the female screw portion 12 formed on the opening / closing lid 10 use so-called four-thread screws, and are screwed and screwed by rotation of about 90 degrees. It will be released.

  For this reason, the notch part 14 formed in the collar part 6 of the container body 2 is formed between the male screw part 5 and the female screw part 12 in a state where the stopper rib 11 formed in the lid body 3 is just placed on the horizontal part 19. It is formed at a position where the screwing is released (see the state of FIG. 4A).

  In the present embodiment, the cutout portion 14, the stopper rib retaining portion 15, the vertical rib 16, the horizontal portion 19, the inclined step portion 17, and the stopper rib 11 are arranged so that the container body 2 and the lid 3 face each other in the circumferential direction 2 in plan view. It is provided in the place.

  Hereinafter, a procedure for attaching the lid 3 to the container body 2 having the above-described configuration will be described. First, the container body 2 is covered with the lid 3, and the stopper rib 11 formed on the lid 3 is appropriately rotated so as to slide on the flange 6, and the stopper rib 11 is fitted into the notch 14 and falls. Stop rotation after confirming this.

  In this state, when the lid 3 is strongly pushed downward in the vertical direction, the stopper rib 11 passes over the inclined surface of the stopper rib retaining portion 15 while elastically deforming, passes through the notch portion 14 and falls to the horizontal portion 19. Thereafter, when the lid 3 is rotated clockwise by about 90 degrees with respect to the container body 2, a stopper is set in accordance with the screwing process between the female screw portion 12 of the lid body 3 and the male screw portion 5 of the container body 2. The rib 11 reaches the shoulder portion 7 while sliding down along the inclined step portion 17. In this state, the female threaded portion 12 of the lid 3 is screwed and coupled to the male threaded portion 5 of the container body 2, and the opening / closing lid 10 is locked to completely seal the opening of the container body 2 so that the sealed state is maintained. maintain.

  As can be understood from the above, the inclined step portion 17 needs to coincide with the tightening and relaxation operations of the container body 2 and the lid body 3 by the four-thread screw, and the length of the inclined step portion 17 of this embodiment is long. The angle of the shoulder of the container body 2 is 90 degrees, and the inclination angle is the same as the inclination angle of the four-thread screw.

  When the user tries to open the opening / closing lid 10 in order to take out the contents of the container main body 2, the lid 3 is rotated counterclockwise counterclockwise. When rotating 90 degrees, the stopper rib 11 gets over the convex stepped portion 18 so that it can be known that the click and vibration are transmitted to the user and the screwing is released. Furthermore, since the stopper rib 11 contacts the vertical rib 16 on the horizontal portion 19, the user cannot further rotate the lid 3 (preventing over-rotation).

  This state is a state in which the screwed connection between the female screw portion 12 of the lid 3 and the male screw portion 5 of the container body 2 is released, whereby the user can open the hinged open / close lid 10. it can. Further, in this state, since the rotation of the stopper rib 11 is restricted by the convex step portion 18, unnecessary rotation (displacement) of the lid 3 can be prevented during the operation of opening and closing the opening / closing lid 10. it can.

  When the contents are completely taken out, the user closes the opening / closing lid 10 and then rotates the lid 3 clockwise 90 degrees with respect to the container body 2, so that the lid 3 opens the opening of the container body 2. And the sealed state of the contents can be maintained again. In this case, since the stopper rib 11 needs to get over the convex step portion 18, the user needs to apply some force to rotate the lid 3.

  FIG. 10 is a development view showing the movement of the stopper rib 11 described above. The state of FIG. 10A is a state in which the lid 3 and the container main body 2 are completely screwed together and the opening / closing lid 10 cannot be opened, and the state of FIG. 10B is the state of the lid 3 and the container. This is a state in the middle of releasing the screw with the main body 2 (however, the opening / closing lid 10 cannot be opened even in this state). FIG. The state which can open the lid | cover 10 is each shown.

  When the user opens and closes the opening / closing lid 10 in the state of FIG. 10C, it is necessary to prevent rattling as much as possible. However, in this embodiment, as shown in the drawing, the stopper rib 11 extends in the vertical direction. The movement is restricted by the bottom surface of the stopper rib retaining part 15 and the horizontal part 19, and the movement in the left-right direction (rotation direction) is restricted by the vertical ribs 16 and the convex step part 18 as described above. That is, the cross section of the stopper rib 11 is substantially the same plane as the virtual plane formed by the bottom surface of the stopper rib retaining portion 15, the vertical ribs 16, and the horizontal portion 19. Can smoothly open and close the open / close lid 10 without rattling.

  Next, the resin packaging container according to the second embodiment of the first invention of the present application will be described with reference to FIGS.

  The difference between the first embodiment and the second embodiment is a configuration for preventing the lid 3 from being detached from the container body 2. In the second embodiment, as shown in FIG. 11, the stopper rib retaining portion 15 formed in the notch portion 14 employed in the first embodiment is not provided, and as an alternative, the alternative embodiment is shown in FIGS. As described above, an inner peripheral convex portion 20 that protrudes inward of the cylindrical portion 8 is formed on the inner peripheral surface of the lower end of the cylindrical portion 8 of the lid 3, and the inner peripheral convex portion 20 is the flange portion 6 of the container body 2. The lid 3 is prevented from coming off from the container main body 2.

  In order to realize the above-described retaining, the inner diameter of the inner circumferential convex portion 20 is formed to be slightly smaller than the outer diameter of the flange portion 6, and the lid body 3 is mounted so as to be pushed into the container body 2 from above. At this time, the upper surface corner of the collar 6 and the lower surface corner of the inner circumferential convex part 20 are respectively corresponding to the flange side face 30 and the inner circumferential convex part side surface so that the inner circumferential convex part 20 can easily get over the collar 6. 40 is formed. In addition, you may form the collar part side surface 30 and the inner peripheral convex part side surface 40 only in either one side. Further, as shown in FIG. 12, the stopper rib 11 is formed so as to protrude further inward of the cylindrical portion 8 than the inner circumferential convex portion 20.

  According to the configuration of the second embodiment described above, since the lid 3 is prevented from being detached from the container body 2 over the entire circumferential surface by the inner circumferential convex portion 20, the stopper rib 11 and the stopper rib retaining portion 15 are provided. Compared to the first embodiment in which the lid 3 is prevented from being detached, the lid 3 can be firmly secured and fixed, and the lid 3 can be prevented from being loosely attached to the container body 2 as a whole.

Next, 1st embodiment which concerns on 2nd invention of this application is described using FIGS.
The difference between the first embodiment of the second invention and the first embodiment of the first invention is that the male thread portion, the collar portion, the notch portion, and the stopper rib, which are components formed on the container body side of the first invention. The retaining portion, the vertical rib, the horizontal portion, the inclined step portion, the convex step portion, and the U-shaped peripheral space are formed in the intermediate connecting member 102, and are fixed to the neck portion of the container body 100 so as not to rotate. The lid member 103 having the same structure as the lid body 3 of the invention is screwed and joined to the intermediate connecting member 102 to form the lid body 101.

  As can be seen from FIGS. 18 and 19, the container body side of the first invention is the same as the intermediate connection member 102 except that the shoulder portion 7 formed in the container body 2 of the first invention is configured as the lower step portion 107. Since the configuration of the lid member 103 is exactly the same as that of the lid 3 of the first invention, detailed description thereof is omitted.

  Moreover, 2nd embodiment which concerns on 2nd invention is implement | achieved by providing each component formed in the container main body side which concerns on 2nd embodiment of 1st invention in an intermediate | middle connection member. Detailed description is omitted.

  According to the second invention, although the number of parts is increased and the manufacturing process is increased as compared with the first invention, the container body can have a simple configuration of a straight neck, and the parts are adapted to the container body of various calibers. Since it can be manufactured in advance and can be easily mounted on a container body of various calibers, it has an advantage in manufacturing management.

  In each of the embodiments according to the first and second inventions described above, the stopper rib 11 is raised or lowered in an oblique direction by the rotation of the lid 3 (or the lid member 103). It is not always necessary to provide the inclined step portion 17 for guiding. FIG. 20 shows a modification in which the inclined step portion 17 is not provided.

  The configuration shown in FIG. 20 (a) is a configuration having a horizontal portion 19 and a convex step portion 18, the configuration shown in (b) is a configuration having only the horizontal portion 19, and the configuration shown in (c) is a horizontal portion. 19, and only the vertical ribs 16 are provided. In the configuration of (b) or (c), there is an advantage that the configuration can be simplified, although it does not have an effect of preventing rattling when the lid is opened and closed according to the above-described embodiment.

  Further, in the embodiments according to the first invention and the second invention described above, the stopper rib 11 and the cutout portion 14 are described in two places, but these are the container body 2 (or the intermediate connection member). 102) and the lid 3 (or lid member 103) may be one (one) in the circumferential direction, or three (three) or more. Although the structure becomes more complicated as more are formed, backlash when opening and closing the lid can be more effectively prevented.

  Further, when the stopper rib 11 and the notch 14 are installed at two or more locations, the container body 2 (or the intermediate connection member 102) and the lid 3 (or the lid member 103) are not aligned at the wrong positions. Therefore, the widths of the corresponding specific stopper ribs 11 and notches 14 may be made wider than the widths of the other stopper ribs 11 and notches 14. By doing so, the wide stopper ribs 11 are only fitted into the corresponding wide notches 14, so that there is no misalignment.

  In the embodiments according to the first and second inventions described above, the stopper rib 11 and the stopper rib retaining portion 15, and the stopper rib 11 and the convex stepped portion 18 are the container body, the lid, and the intermediate connection. Since all the constituent elements of the member and the lid member are formed of resin, they can be fitted by elastic deformation or can overcome a step. The above-described embodiments are merely examples for carrying out the present invention, and do not limit the interpretation of the present invention.

DESCRIPTION OF SYMBOLS 1 Packaging container 2 Container main body 3 Cover body 4 Neck part 5 Male thread part 6 Girder part 7 Shoulder part 8 Cylindrical part 9 Hinge connection part 10 Opening and closing cover 11 Stopper rib 12 Female thread part 13 Annular convex part 14 Notch part 15 Stopper rib Retaining part 16 Vertical rib 17 Inclined step part 18 Convex step part 19 Horizontal part 20 Inner peripheral convex part 30 Ridge side surface 40 Inner peripheral convex part side surface 100 Container body 101 Lid body 102 Intermediate connection member 103 Lid member 104 Opening and closing lid

Claims (20)

A packaging container comprising a resin container body having an opening at the neck and a resin lid for opening and closing the opening,
The container body is
A male screw part formed in an upper region of the outer surface of the neck part, a collar part at a position below the male screw part and having an outer diameter larger than the outer diameter of the male screw part, and a position below the collar part And having a U-shaped circumferential space formed between the shoulder of the container body,
The lid is
A tubular portion, an opening / closing lid hingedly connected to the tubular portion to open and close the opening, and a stopper rib projecting toward the inside of the tubular portion at the lower end of the tubular portion ,
The opening / closing lid is provided with an annular projection having an inner peripheral surface formed with a female screw portion screwed with the male screw portion,
The flange portion of the container body is formed with a notch portion through which the stopper rib can be inserted and passed,
In the U-shaped peripheral space, a vertical rib is formed that restricts over-rotation of the lid relative to the container body by contacting the stopper rib at a position where the notch is formed,
The stopper rib is located on the shoulder portion of the container body, and the open / close lid is locked in a closed state in a state where the male screw portion and the female screw portion are screwed together,
The stopper rib is in a position where it comes into contact with the vertical rib, and the lock of the open / close lid is released in a state where the male screw part and the female screw part are not screwed together,
A packaging container characterized by that. The stopper has a horizontal portion extending in a horizontal direction from a middle height of the vertical rib and having a width substantially equal to the width of the notch, and the stopper between the horizontal portion and the shoulder portion of the container body. An inclined step portion for inclining and guiding the rib is formed,
The packaging container according to claim 1. A convex step is formed in a connecting region between the inclined step and the horizontal portion.
The packaging container according to claim 2. The stopper rib is provided with one or a plurality of protrusions at the lower end of the cylindrical portion, and the notch portion into which the one or a plurality of the stopper ribs can be respectively inserted is 1 in the circumferential direction of the flange portion of the container body. Or more than one,
The packaging container according to any one of claims 1 to 3. When a plurality of the stopper ribs and the cutout portions are formed in the circumferential direction of the flange portion of the container body, the widths of the corresponding specific stopper ribs and the cutout portions are different from those of the other stopper ribs and the cutout portions. Greater than the width of the part,
The packaging container according to claim 4. The notch portion is formed with a stopper rib retaining portion having a wedge-shaped cross section that is inclined outwardly downward and prevents the stopper rib from slipping.
The packaging container according to any one of claims 1 to 5, wherein The stopper rib retaining portion is formed at a lower position with respect to the upper plane of the flange portion,
The packaging container according to claim 6. The bottom surface of the stopper rib retaining portion is the same plane as the lower surface of the flange portion,
The packaging container according to claim 6. An inner peripheral convex portion projecting inward of the cylindrical portion is formed on the inner peripheral surface of the lower end of the cylindrical portion of the lid,
The inner diameter of the inner convex portion is slightly smaller than the outer diameter of the collar portion,
And the upper surface corner of the flange and / or the lower surface corner of the inner peripheral convex portion is chamfered,
The packaging container according to any one of claims 1 to 5, wherein The stopper rib protrudes further inward of the cylindrical portion than the inner peripheral convex portion.
The packaging container according to claim 9. A lid for a packaging container made of resin that opens and closes the opening with respect to a container body having an opening,
The lid body includes an intermediate connection member that is fixed to the neck of the container body so as not to rotate, and a lid member that is screw-engaged with the intermediate connection member.
The intermediate connecting member is
Between the male thread part formed in the upper region of the outer side surface, the upper collar part having an outer diameter larger than the outer diameter of the male thread part formed below the male thread part, and the upper collar part It is composed of a cylindrical body having a lower portion that forms a U-shaped peripheral space,
The lid member is
A tubular portion, an opening / closing lid hingedly connected to the tubular portion to open and close the opening, and a stopper rib projecting toward the inside of the tubular portion at the lower end of the tubular portion ,
The opening / closing lid is provided with an annular projection having an inner peripheral surface formed with a female screw portion screwed with the male screw portion,
The upper collar portion of the intermediate connecting member is formed with a notch portion through which the stopper rib can be fitted and passed.
In the U-shaped peripheral space, a vertical rib is formed that regulates over-rotation of the lid member relative to the intermediate connecting member by contacting the stopper rib at a position where the notch is formed,
The stopper rib is positioned at the lower step portion of the intermediate connecting member, and the open / close lid is locked in a closed state in a state where the male screw portion and the female screw portion are screwed together,
The stopper rib is in a position where it comes into contact with the vertical rib, and the lock of the open / close lid is released in a state where the male screw part and the female screw part are not screwed together,
A lid for a packaging container. The horizontal rib extends in the horizontal direction from the middle height of the vertical rib, and has a horizontal portion having substantially the same width as the width of the notch, and between the horizontal portion and the lower step portion of the intermediate connecting member, An inclined step for guiding the stopper rib is formed.
The lid for a packaging container according to claim 11. A convex step is formed in a connecting region between the inclined step and the horizontal portion.
The lid | cover for packaging containers of Claim 12 characterized by the above-mentioned. The stopper rib is provided with one or a plurality of protrusions at the lower end of the cylindrical portion, and the cutout portion into which the one or a plurality of the stopper ribs can be respectively inserted is a circumferential direction of the upper collar portion of the intermediate connecting member One or more are formed,
The lid for a packaging container according to any one of claims 11 to 13, wherein the lid is for a packaging container. When a plurality of the stopper ribs and the cutout portions are formed in the circumferential direction of the flange portion of the container body, the widths of the corresponding specific stopper ribs and the cutout portions are different from those of the other stopper ribs and the cutout portions. Greater than the width of the part,
The lid for a packaging container according to claim 14. The notch portion is formed with a stopper rib retaining portion having a wedge-shaped cross section that is inclined outwardly downward and prevents the stopper rib from slipping.
The lid for a packaging container according to any one of claims 11 to 15, wherein the lid is for a packaging container. The stopper rib retaining portion is formed at a lower position with respect to the upper plane of the flange portion,
The lid for a packaging container according to claim 16. The bottom surface of the stopper rib retaining portion is the same plane as the lower surface of the flange portion,
The packaging container lid according to claim 17. An inner peripheral convex portion projecting inward of the cylindrical portion is formed on the inner peripheral surface of the lower end of the cylindrical portion of the lid member,
The inner diameter of the inner convex portion is slightly smaller than the outer diameter of the collar portion,
And the upper surface corner of the flange and / or the lower surface corner of the inner peripheral convex portion is chamfered,
The lid for a packaging container according to any one of claims 11 to 15, wherein the lid is for a packaging container. The stopper rib protrudes further inward of the cylindrical portion than the inner peripheral convex portion.
The packaging container lid according to claim 19.