JP5823271B2 - container - Google Patents

Description

  The present invention relates to a container in which the cap is prevented from rotating when screwing into the mouth of the cap is completed.

  The container is provided with a male screw on the outer periphery of the mouth of the container body, a female screw is provided on the inner periphery of the cap made of synthetic resin, and the cap is detachably screwed into the mouth through the male screw and the female screw. The container body is provided with a stopper that protrudes outward from the mouth, and when the screwing of the cap into the mouth is complete, a contact piece is provided on the cap that stops the cap from coming into contact with the stopper from the direction of tightening the cap. There is something that was done.

  In this type of conventional container, the cap includes a cylindrical inner wall body, a cylindrical outer wall body that surrounds the inner wall body, and a ceiling wall body that closes the inner wall body and the upper end opening of the outer wall body. The internal thread is formed on the inner periphery of the cap, and a stopper protrudes outward from the external thread of the mouth toward the base. The contact piece extends from the lower surface of the top wall of the cap to the outer peripheral surface of the inner wall. The reinforcing rib protrudes downward and extends from the lower surface of the top wall body to the inner peripheral surface of the outer wall body toward the radially inner side of the mouth, and the inner end portion of the reinforcing rib is a contact piece. There is one that is connected and stretched by a reinforcing rib to hold the contact piece in a position where it comes into contact with a stopper (for example, cited document 1).

JP 2002-145290 A

However, in the conventional case, when the cap is rotated with a strong torque when tightening the cap, the contact piece escapes outward from the stopper due to the elastic deformation of the reinforcing rib, and the contact piece is deformed. There was a problem of being damaged.
In addition, since there are thin and long reinforcing ribs straddling the lower surface of the top wall body of the cap and the inner peripheral surface of the outer wall body, the moldability of the cap is deteriorated, and the mold structure of the cap is complicated. Moreover, since the reinforcing ribs are connected to the outer wall body, “sink marks” peculiar to resin products are generated on the outer peripheral surface of the outer wall body, and this causes a defect such as a “flow mark” in which the flow of the resin appears on the surface. It was.

  In view of the above problems, the present invention can prevent the contact piece from escaping outward and deforming and damaging when the cap is tightened, and the cap can be easily manufactured with a mold having a simple structure. It aims at providing the container which can prevent generation | occurrence | production of a defect.

Specific means for solving the problems in the present invention are as follows.
The technical means of the present invention for solving this technical problem is that a male screw 9 is provided on the outer periphery of the mouth portion 3 of the container body 2 and a female screw 19 is provided on the inner periphery of the cap 4 made of synthetic resin. The cap 4 is detachably screwed into the mouth portion 3 via the female screw 19, and the stopper 25 protruding outward from the mouth portion 3 is provided on the container body 2, and the screwing of the cap 4 to the mouth portion 3 is completed. A container provided on the cap 4 with a contact piece 29 that contacts the stopper 25 from the direction of tightening the cap and stops the cap 4 from rotating.
A spread preventing means 32 is provided between the stopper 25 and the contact piece 29 to prevent the contact piece 29 from extending beyond the stopper 25 to the outside of the mouth 3 .
A return-preventing piece 27 is provided on the mouth 3 so as to protrude outwardly so that the contact piece 29 can be overcome just before the screwing of the cap 4 is completed and is engaged to prevent the return after the screwing is completed. In the point.

Another technical means of the present invention is that the spread preventing means 32 is provided on the outer side of the mouth 3 with respect to the contact piece 29 so as to restrict the movement of the contact piece 29 toward the outer side of the mouth 3. A stopper engaging portion 34 that engages with the stopper 25 is provided on the stopper 25.
According to another technical means of the present invention, the stopper engaging portion 34 protrudes in the cap loosening direction on the outer side of the mouth portion 3 from the contact portion where the contact piece 29 of the stopper 25 contacts. There is in point.

According to another technical means of the present invention, the spread preventing means 32 gradually advances in the cap loosening direction toward the outer side of the mouth 3 through the contact surface 25a with which the contact piece 29 of the stopper 25 contacts. It is in the point made to incline like this.
According to another technical means of the present invention, the spread preventing means 32 is engaged with the stopper 25 from the mouth 3 side so as to restrict the movement of the contact piece 29 to the outside of the mouth 3. The contact piece engaging portion 39 is provided on the contact piece 29.

Further, according to another technical means of the present invention, the contact piece engaging portion 39 protrudes in the cap tightening direction closer to the mouth portion 3 than the contact portion contacting the stopper 25 of the contact piece 29. There is in point.
As another technical means, the cap 4 includes a cylindrical inner wall body 15, a cylindrical outer wall body 16 that surrounds the inner wall body 15, a ceiling wall body that closes the upper end opening of the inner wall body 15 and the outer wall body 16. 17, the female screw 19 is formed on the inner periphery of the inner wall body 15, and the contact piece 29 projects downward from the lower surface of the ceiling wall body 17 along the outer peripheral surface of the inner wall body 15. The space 30 may be provided between the lower surface of the body 17 and the outer peripheral surface of the inner wall body 15 and between the contact piece 29 and the outer wall body 16.

According to the present invention, even when the cap is rotated with a strong torque when tightening the cap, the contact piece can be prevented from escaping outward from the stopper by the spread preventing means, and the contact piece can be It can be prevented from escaping outward and being deformed and damaged.
In addition, it is necessary to hold the contact piece in the position where it comes into contact with the stopper by stretching it with the reinforcement rib as in the conventional case, and the reinforcement rib can be made unnecessary, so the moldability of the cap is improved and the cap has a simple structure. It can be easily manufactured with a mold, and the cause of a defect such as a “flow mark” in which the flow of the resin appears on the surface is eliminated, and the occurrence of the defect can be prevented.

It is a partially cutaway front sectional view of a container showing a 1st embodiment of the present invention. It is the sectional view on the AA line of the same FIG. It is a top view of the container main body. It is a front view of the container main body. It is a bottom view of the cap. It is a side view of the same container main body. It is a plane sectional view of a container showing a 2nd embodiment. It is a partially cutaway front sectional view of a container showing a 3rd embodiment. It is the BB sectional view taken on the line of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of the present invention. In FIG. 1, a container 1 for storing skin lotion, emulsion, and the like includes a container body 2 and a cap 4 attached to the mouth 3 of the container body 2. Is provided. The container body 2 is integrally formed of a synthetic resin and formed into an elliptical cylindrical shape, and the mouth 3 is projected upward via a shoulder 6.

The mouth 3 is formed in a cylindrical shape, and a male screw 9 is provided on the outer periphery of the mouth 3. An inner plug 10 is fitted and attached to the upper part of the mouth part 3 so as to close the upper end opening of the mouth part 3. A pouring hole 12 is provided in the upper wall of the inner plug 10.
The cap 4 is made of a synthetic resin, and includes an inner wall body 15, an outer wall body 16 that surrounds the inner wall body 15, and an inner wall body 15 and a top wall body 17 that closes an upper end opening of the outer wall body 16, and the inner wall body 15 is a cylinder. A female screw 19 is formed on the inner periphery of the inner wall body 15. The outer wall body 16 is formed in an elliptical cylindrical shape corresponding to the container body 2.

The ceiling wall body 17 is formed in an elliptical plate shape, and a cylindrical plug body 21 that detachably closes the pouring hole 12 of the inner plug 10 and a top wall of the inner plug 10 are pressed downward on the lower surface of the center portion. The pressing cylinder 22 is integrally formed. The cap 4 is detachably screwed into the mouth portion 3 via a male screw 9 and a female screw 19.
The container body 2 is provided with a stopper 25 protruding outward from the mouth 3. The stoppers 25 project outward from the male screw 9 of the mouth portion 3 toward the base side, and a pair of stoppers 25 are provided in the radial direction of the mouth portion 3. Each stopper 25 is formed in a triangular shape in plan view that gradually narrows outward from the mouth portion 3 in the radial direction, and a contact surface 25a that contacts a contact piece 29 described later on the cap loosening direction side of the stopper 25. The contact surface 25 a is formed in a vertical surface shape that matches the radial direction of the mouth portion 3.

An anti-return piece 27 is projected outwardly in a U-shape in plan view on the base side of the male screw 9 of the mouth 3. The return prevention pieces 27 protrude outwardly of the stopper 3 shorter than the stopper 25, and are provided in a pair in the radial direction of the mouth 3 corresponding to the stopper 25, and are respectively spaced apart from the stopper 25 in the cap loosening direction. ing.
A contact piece 29 projects downward from the lower surface of the top wall body 17 along the outer peripheral surface of the inner wall body 15. The contact piece 29 is integrally connected to the lower surface of the top wall body 17 and the outer peripheral surface of the inner wall body 15, protrudes downward from the lower end of the inner wall body 15, and between the contact piece 29 and the outer wall body 16. A space 30 is provided.

The contact piece 29 comes into contact with the stopper 25 (contact surface 25a) by a surface, and the contact surface 29a that comes into contact with the stopper 25 of the contact piece 29 is the same as the contact surface 25a of the stopper 25. It is formed in a vertical plane that matches the radial direction of the portion 3.
A pair of contact pieces 29 are provided in the radial direction of the inner wall body 15, and each contact piece 29 is inclined so as to gradually go radially outward as it goes in the cap tightening direction. The contact piece 29 is configured to be able to climb over the outer side of the portion 3, and just before the screwing of the cap 4 to the mouth portion 3 is completed, the contact piece 29 rides over the return prevention piece 27 to the outer side of the mouth portion 3. When the screwing to the portion 3 is completed, the contact piece 29 comes into contact with the stopper 25 from the cap tightening direction to stop the cap 4 from rotating. When the screwing of the cap 4 to the mouth 3 is completed, the shape of the outer wall body 16 of the cap 4 coincides with the shape of the container body 2 in the vertical direction.

  Between the stopper 25 and the contact piece 29, there is provided spread preventing means 32 for preventing the contact piece 29 from extending beyond the stopper 25 to the outside of the mouth portion 3. The spread preventing means 32 is provided with a stopper engaging portion 34 that engages the contact piece 29 from the outer side of the mouth portion 3 on the stopper 25, and the contact piece 29 is engaged with the stopper piece 29 from the mouth portion 3 side. By engaging the portion 34, the movement of the contact piece 29 to the outer side of the mouth portion 3 is restricted. The stopper engaging portion 34 protrudes toward the cap loosening direction on the outer side of the mouth portion 3 from the contact portion where the contact piece 29 of the stopper 25 contacts.

  Note that the spread prevention means 32 is provided between the stopper 25 and the contact piece 29 as described above, the spread prevention means 32 is provided so as to be associated with both the stopper 25 and the contact piece 29. Even if the spread preventing means 32 is not between the stopper 25 and the contact piece 29 in the physical sense, it is only necessary to exist intentionally between the stopper 25 and the contact piece 29. .

  According to the first embodiment, when the cap 4 is screwed into the mouth portion 3 of the container body 2, the pair of radial contact pieces 29 are attached to the mouth portion 3 while rotating around the mouth portion 3. On the other hand, the contact piece 29 descends together with the cap 4 and just before the screwing of the cap 4 into the mouth portion 3 is completed, the contact piece 29 moves over the outer side of the mouth portion 3 while sliding on the return prevention piece 27, and the cap tightening direction is slightly Then, when the screwing of the cap 4 to the mouth 3 is completed, the contact piece 29 comes into contact with the stopper 25 from the direction of tightening the cap and stops the cap 4 from rotating. At this time, the end of the contact piece 29 on the cap loosening direction side is engaged with the return preventing piece 27, and the cap 4 is prevented from returning.

  When the cap 4 is tightened as described above, even if the cap 4 is rotated with a strong torque, when the screwing of the cap 4 into the mouth 3 is completed, the stopper engaging portion 34 which is the spread preventing means 32 is The contact piece 29 is engaged with the contact piece 29 from the outer side of the mouth portion 3 and the movement of the contact piece 29 to the outer side of the mouth portion 3 is restricted. Further, it is possible to reliably prevent the contact piece 29 from escaping to the outer side of the mouth portion 3, and to prevent the contact piece 29 from escaping to the outer side of the mouth portion 3 to be deformed and damaged.

In addition, it is necessary to hold the contact piece 29 at a position where it comes into contact with the stopper 25 by stretching it with the reinforcing rib as in the prior art. Since the reinforcing rib can be dispensed with, the moldability of the cap 4 is improved. It is easy to manufacture with a mold having a simple structure, and the cause of a defect such as a “flow mark” in which the flow of the resin appears on the surface is eliminated, and the occurrence of the defect can be prevented.
Further, when molding the container body 2 with a synthetic resin, for example, by joining the front and rear molds with a one-dot chain line D shown in FIG. The molded product can be easily removed from the mold, and the container body 2 can be easily manufactured.

FIG. 7 shows a second embodiment. The stopper 25 is inclined so as to gradually advance in the cap loosening direction toward the radially outward direction and protrudes from the mouth portion 3, and the contact piece 29 of the stopper 25 is in contact with the stopper 25. The abutting contact surface 25a is inclined so as to gradually advance in the cap loosening direction toward the outer side of the mouth 3.
In the case of the present embodiment, the contact piece 29 is in contact with the stopper 25 (contact surface 25a) at the surface, and the contact surface 29a that is in contact with the stopper 25 of the contact piece 29 is the stopper 25. In the same manner as the contact surface 25a, the cap 3 is inclined so as to gradually advance in the cap loosening direction toward the outer side of the mouth 3.

Thus, the spread preventing means 32 provided between the stopper 25 and the contact piece 29 gradually caps the contact surface 25a with which the contact piece 29 of the stopper 25 contacts toward the outer side of the mouth 3. It is inclined so as to advance in the loosening direction. The other points are the same as those in the first embodiment.
In the case of the second embodiment, even if the cap 4 is rotated with a strong torque when the cap 4 is tightened, the inclined contact surface which is the spread preventing means 32 when the screwing of the cap 4 to the mouth 3 is completed. Since the contact piece 29 comes into contact with 25 a, the tightening force of the cap 4 acts so as to face the contact piece 29 toward the mouth portion 3, and the contact piece 29 is closer to the mouth portion 3 than the stopper 25. Escape to the outside can be surely prevented, and a conventional reinforcing rib can be eliminated. Further, when molding the container body 2 with a synthetic resin, for example, by joining the front and rear molds with a one-dot chain line D shown in FIG. The molded product can be easily removed from the mold, and the container body 2 can be easily manufactured.

  FIGS. 8 and 9 show a third embodiment. A pair of radial stoppers 25 project upward from the shoulder 6, and the stoppers 25 are spaced apart from the mouth 3 in the radially outward direction. The contact piece 29 projecting downward from the lower surface of the top wall body 17 is a contact part 37 projecting outward of the mouth part 3, and is positioned closer to the mouth part 3 than the contact part 37 and the direction of tightening the cap And the contact piece 37 comes into contact with the stopper 25 in the direction of tightening the cap when the screwing of the cap 4 to the mouth 3 is completed. The engagement portion 39 is fitted between the stopper 25 and the mouth portion 3 and is engaged with the stopper 25 from the mouth portion 3 side so as to restrict the movement of the contact piece 29 to the outer side of the mouth portion 3. Is configured to do.

Thus, the spread preventing means 32 provided between the stopper 25 and the contact piece 29 is provided with a contact piece engaging portion 39 that engages the stopper 25 from the mouth 3 side. Thus, the contact piece engaging portion 39 protrudes in the cap tightening direction closer to the mouth portion 3 than the contact portion that contacts the stopper 25 of the contact piece 29. The other points are the same as those in the first embodiment.
In the case of the third embodiment, even when the cap 4 is rotated with a strong torque when the cap 4 is tightened, when the screwing of the cap 4 to the mouth portion 3 is completed, the contact piece engagement that is the spread preventing means 32 is performed. Since the joint portion 39 engages with the stopper 25 from the mouth portion 3 side and restricts the movement of the contact piece 29 to the outer side of the mouth portion 3, the contact piece 29 is outside the mouth portion 3 than the stopper 25. Escape to the side can be surely prevented, and a conventional reinforcing rib can be eliminated. Further, when the container body 2 is molded from a synthetic resin, it can be molded with a mold having a simple structure, for example, by joining the front and rear molds with a one-dot chain line D shown in FIG. The molded product can be easily removed from the mold, and the container body 2 can be easily manufactured.

  In the embodiment, the cap 4 includes the cylindrical inner wall body 15, the cylindrical outer wall body 16 that surrounds the inner wall body 15, and the top wall body 17 that closes the inner wall body 15 and the upper end opening of the outer wall body 16. However, instead of this, the cap 4 has a cylindrical shape having a cylindrical side wall and a top wall that closes the upper end opening of the side wall, that is, the outer wall 16 in the above embodiment is omitted. It may be in the state. Further, the cap 4 may have a perfect circular cylindrical shape, a rectangular cylindrical shape, or a polygonal cylindrical shape in addition to the elliptical cylindrical shape.

In the embodiment, the contact piece 29 is configured to contact the stopper 25 (the contact surface 25a) at the contact surface 29a. Instead, the contact piece 29 is a line in the vertical direction or the like. It may be configured to contact the stopper 25 (contacting surface 25a).
Moreover, you may make it form the container main body 2 with glass, a metal, a tube, etc. instead of a synthetic resin.

  Further, the reinforcing rib may or may not be provided on the inner peripheral surface of the outer wall body 16 of the cap 4, between the outer wall body 16 and the contact piece 29, or on the outer peripheral surface of the inner wall body 15.

DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 3 Mouth part 4 Cap 9 Male screw 15 Inner wall body 16 Outer wall body 17 Top wall body 19 Female screw 25 Stopper 25a Contact surface 29 Contact piece 30 Space 32 Spread prevention means 34 Stopper engagement part 39 Contact piece engagement Part

Claims (6)

A male screw (9) is provided on the outer periphery of the mouth (3) of the container body (2), and a female screw (19) is provided on the inner periphery of the synthetic resin cap (4). These male screw (9) and female screw (19 ), The cap (4) is detachably screwed into the mouth (3), and the container (2) is provided with a stopper (25) protruding outward from the mouth (3). The cap (4) is provided with a contact piece (29) that comes into contact with the stopper (25) from the direction of tightening the cap (4) and stops the rotation of the cap (4) when the screw (3) is completely screwed into the mouth (3). A container,
A spread prevention means (32) for preventing the contact piece (29) from extending beyond the stopper (25) to the outside of the mouth (3) is provided between the stopper (25) and the contact piece (29). provided,
An anti-return piece (27) that can be engaged immediately before the contact piece (29) is screwed to the cap (4) and to prevent return after the screwing is completed is provided in the mouth portion (3). A container characterized in that it protrudes outward .   The spread preventing means (32) is engaged with the contact piece (29) from the outer side to restrict the movement of the contact piece (29) to the outer side of the mouth (3). The container according to claim 1, wherein a stopper engaging portion (34) for mating is provided on the stopper (25).   The stopper engaging portion (34) protrudes in the direction of loosening the cap on the outer side of the mouth (3) with respect to the contact portion with which the contact piece (29) of the stopper (25) contacts. The container according to claim 2, characterized in that:   The spread preventing means (32) gradually advances in the cap loosening direction as the contact surface (25a) with which the contact piece (29) of the stopper (25) contacts is directed outwardly from the mouth (3). The container according to claim 1, wherein the container is inclined.   The spread preventing means (32) is a contact that engages the stopper (25) from the mouth (3) side so as to restrict the movement of the contact piece (29) to the mouth (3) outward side. The container according to claim 1, wherein the engagement piece (39) is provided on the contact piece (29).   The contact piece engaging portion (39) protrudes in the cap tightening direction on the mouth (3) side from the contact portion that contacts the stopper (25) of the contact piece (29). 6. A container according to claim 5 characterized in that

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