JP2009208794A - Container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container capable of extensively applying a structure for suppressing the wobbling of a cap from a container body when attaching and detaching the cap to various containers. <P>SOLUTION: A middle plug and a pressing member 5 are arranged between a mouth 20 of a container and a cap. The pressing member is equipped with a fitting cylinder 50 fitted to the mouth, a plurality of pressing pieces 53 arranged spaces in the peripheral direction on the outer side in its radial direction, and a plurality of connection pieces 54 for connecting each pressing piece against the fitting cylinder in an elastically deformable manner in the radial direction. The plurality of pressing pieces are inserted in a plurality of through-holes 44 formed at an outer cylindrical part so that their outer surfaces are projected from an outer peripheral surface of an outer cylindrical part 41 of the middle plug, and their inner surfaces are located inward of the radial direction from the outer peripheral surface of the outer cylindrical part. Each connection piece is connected to an upper end of each pressing piece, and an upper end edge 53c of each pressing piece located on the upper end is opposite to an inner peripheral edge 44a of the through-hole in the axial direction of the fitting cylinder. When the cap is screwed, an outer surface of each pressing piece is pressed against a female screw of the cap, and elastically deformed inwardly in the radial direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a container in which a cap is screwed into a mouth portion of a container body and an inner plug is attached to the mouth portion.

In this type of container, when the cap is attached to and detached from the mouth portion of the container body, the cap and the mouth portion of the container body sometimes wobble relatively. Therefore, conventionally, there is an increasing demand for improving the operability at the time of attachment and detachment while suppressing the wobble.
As means for responding to such a demand, a configuration in which an elastic protrusion is provided on an inner peripheral surface of a peripheral wall portion of a cap as shown in, for example, Patent Document 1 below is known. More specifically, the elastic protrusion is formed at a position between the threads of the female screw portion formed on the inner peripheral surface of the peripheral wall portion of the cap, the inner diameter of the elastic protrusion is larger than the inner diameter of the female screw portion, and the container It is smaller than the outer diameter of the male screw part formed in the mouth part of the main body. According to the container having such a configuration, the elastic protrusion is pressed against the screw thread of the male screw part in the process of attaching and detaching the cap to the mouth part of the container main body. Thereby, it becomes possible to suppress relative wobble between the container body and the cap.
JP 2000-281101 A

  However, in the conventional container described above, since the cap and the elastic protrusion are integrally formed, there is a possibility that the types of containers that can be applied are limited. This is because, in a cap having elastic protrusions, for example, the arrangement position and the number of elastic protrusions, as well as the amount of protrusion, may be limited in order to facilitate demolding after molding.

  The present invention has been made in consideration of the above-described conventional problems, and provides a container that can suppress relative wobble between the container body and the cap in the process of attaching and detaching the cap to the mouth of the container body. And it aims at making it widely applicable with respect to the various containers from which the shape of a mouth part of a container main body, a cap, and a dimension differ.

  The container according to the present invention includes a container body having a mouth portion having a male screw portion formed on the outer peripheral surface, a cap having a female screw portion formed on the inner peripheral surface of the peripheral wall portion and screwed to the mouth portion, and the mouth An inner plug and a pressure contact member disposed between the cap and the cap, the pressure contact member having a gap on a radially outer side of the mounting tube mounted on the mouth portion and the mounting tube A plurality of press contact pieces arranged at intervals in the circumferential direction, and the mounting cylinder and each press contact piece so that these press contact pieces can be elastically deformed in the radial direction with respect to the mounting cylinder. A plurality of connecting pieces that are connected separately, and the inner plug is formed from a top plate portion on which the spout is formed, and an outer cylinder that is suspended from the outer peripheral edge of the top plate portion and is attached to the outer peripheral surface of the mouth portion A plurality of pressure contact pieces in a plurality of through holes formed in the outer cylinder portion at intervals in the circumferential direction. The outer surface is inserted separately so as to protrude from the outer peripheral surface of the outer tube portion, and when the cap is screwed, the outer surface side of the pressure contact piece is pressed against the thread of the female screw portion, and the pressure contact piece is attached to the mounting cylinder diameter. It is characterized by being elastically deformed inward in the direction.

According to this container, when the cap is attached to or detached from the mouth portion, the thread of the female threaded portion of the cap is pressed against the outer surface side of the press contact piece, and the thread of the female thread portion slides on the outer surface of the press contact piece. . At this time, since the press contact piece is elastically deformed radially inward, a repulsive force (elastic force) from the press contact piece acts on the cap.
In addition, when the inner surface side of the pressure contact piece is disposed so as to be accommodated in the through hole, the corner portion on the inner surface side of the pressure contact piece is covered by the outer cylinder portion, so that the cap is removed from the mouth portion. It is possible to prevent fingers, cloth or cotton from being caught on the edge of the pressure contact piece.
Furthermore, when the connecting piece is connected to one end edge of the pressure contact piece, when the cap is attached to or detached from the mouth, the other end edge opposite to the one end edge of the pressure contact piece is caught by the female screw part. Even if a force for turning outward in the radial direction is applied to the pressure contact piece, one end edge of the pressure contact piece connected to the connecting piece is pressed against the inner peripheral edge of the through-hole, so that this turn-up can be prevented.

  In the container according to the present invention, it is preferable that the through hole is opened at the lower end on the opposite side of the opening end side of the mouth portion along the axial direction in the outer cylinder portion.

  In this case, after attaching the pressure contact member to the mouth portion of the container body, the inner stopper may be attached to the mouth portion so that the pressure contact piece enters the through hole from the opening at the lower end of the outer cylinder portion. The stopper and the pressure contact member can be easily assembled to the mouth of the container body. Further, when the inner plug is mounted, the pressure contact piece is guided into the through hole from the opening portion at the lower end in the axial direction, so that the relative positioning of the inner plug and the pressure contact member can be easily performed.

  In the container according to the present invention, it is preferable that a rib protrudes from the outer surface of the pressure contact piece.

  In this case, since the thread of the female screw portion is pressed against the tip of the rib when the cap is attached and detached, the sliding contact area of the press contact piece with respect to the female screw portion can be kept small. In other words, the frictional resistance acting between the thread of the female thread portion and the outer surface side of the pressure contact piece when the cap is attached / detached is reduced, and the attaching / detaching operation of the cap can be easily performed while suppressing the rotational torque during attachment / detachment.

According to the container of the present invention, since the repulsive force from the elastically deformed pressure contact piece acts on the cap, relative wobble between the cap and the container main body when the cap is attached or detached can be suppressed.
Further, since the inner plug and the pressure contact member are attached to the mouth portion, the position of the pressure contact piece with respect to the mouth portion can be easily changed. It is possible to optimally set the position of the pressure contact piece according to the diameter of the portion. Thereby, it can apply widely with respect to the various container from which the shape, dimension, etc. of a container main body and a cap differ.
Furthermore, the pressure contact piece can be configured so that its outer surface side protrudes radially outward from the through hole of the outer cylinder portion, and the inner surface side can be accommodated in the through hole. It is possible to prevent fingers, cloth, cotton, or the like from being caught on the edge of the press contact piece, and to prevent the press contact piece from turning outward in the radial direction, thereby effectively protecting the press contact piece.

Hereinafter, an embodiment of a container according to the present invention will be described with reference to FIGS.
In the present embodiment, the mouth 20 side (the upper side in FIG. 1) of the bottomed cylindrical container body 2 constituting the container 1 is the upper side, and the bottom side (the lower side in FIG. 1) of the container body 2 is the lower side. And Moreover, the code | symbol L shown in FIG. 1 extended in an up-down direction has shown the center axis line of the container main body 2, the cap 3, the inner stopper 4, and the press-contact member 5, and is only described as the center axis line L below.

  As shown in FIG. 1 and FIG. 2, the container 1 includes a container body 2 having a mouth portion 20, a cap 3 screwed into the mouth portion 20, a cover 20 attached to the mouth portion 20, and an inner side of the cap 3. The inner plug 4 is disposed, and the pressure contact member 5 disposed between the mouth portion 20 and the cap 3 is provided. The container body 2, the cap 3, the inner plug 4, and the pressure contact member 5 are respectively disposed with the central axis L as a common axis.

  The container body 2 is, for example, a bottle container that stores a liquid or the like, and has a mouth portion 20 at the upper end. The mouth portion 20 has a substantially cylindrical shape extending along the central axis L, and has a thick cap screwed portion 21 to which the cap 3 is screwed and a thin wall portion to which the inner plug 4 is attached. An inner plug attaching portion 22. The cap screwing portion 21 is erected on the upper surface of the shoulder portion 23 of the container body 2. A male screw portion 24 is formed on the outer peripheral surface of the cap screw portion 21. The inner plug attaching part 22 is erected on the upper end surface of the cap screwing part 21. The outer diameter D1 of the inner plug attaching portion 22 is smaller than the outer diameter D2 of the cap screwing portion 21, and between the outer peripheral surface of the cap screwing portion 21 and the outer peripheral surface of the inner plug attaching portion 22. Has a step. On the outer peripheral surface of the upper end portion of the inner plug attaching portion 22, a convex portion 22 a bulging outward in the inner plug radial direction is formed over the entire periphery.

The cap 3 includes an outer cylinder member 31, an inner cylinder member 30 fitted inside the outer cylinder member 31, a top wall portion 34 of the inner cylinder member 30, and a top plate portion 40 of the inner plug 4 described later. And a packing 33 interposed therebetween.
The outer cylinder member 31 includes a top wall portion 32 disposed perpendicular to the central axis L, and a substantially cylindrical peripheral wall portion 37 suspended from the outer edge portion of the top wall portion 32. An engaging portion 37 a bulging inward in the cap radial direction is formed on the upper portion of the inner peripheral surface of the peripheral wall portion 37.

The inner cylinder member 30 includes a top wall portion 34 disposed perpendicular to the central axis L, and a substantially cylindrical peripheral wall portion 35 suspended from the outer edge portion of the top wall portion 34. The ceiling wall 34 is in contact with the lower surface of the ceiling wall 32 of the outer cylinder member 31 described above. On the inner peripheral surface of the peripheral wall portion 35, a female screw portion 36 that is screwed into the male screw portion 24 is formed. Further, an engaging portion 35a is formed at the upper end portion of the outer peripheral surface of the peripheral wall portion 35, and the engaging portion 35a is engaged with the engaging portion 37a of the peripheral wall portion 37 of the outer cylinder member 31 described above. Thus, the inner cylinder member 30 is undercut fitted to the outer cylinder member 31.
The packing 33 is a disk-like member disposed perpendicular to the central axis L, and is in contact with the lower surface of the top wall portion 34 of the inner cylinder member 30. The packing 33 is engaged with an undercut fit in the inner cylinder member 30 by engaging an outer peripheral portion thereof with an engaging portion 35b formed on the inner peripheral surface of the upper portion of the peripheral wall portion 35 of the inner cylindrical member 30 described above. Has been.

The inner plug 4 is a member attached to the upper end portion (inner plug attaching portion 22) of the mouth portion 20, and includes a top plate portion 40 disposed perpendicular to the central axis L, and the top plate portion 40. The outer cylinder part 41 hung down from the outer edge part, and the inner cylinder part 43 hung down from the lower surface of the top-plate part 40 and arrange | positioned inside the outer cylinder part 41 are provided.
The top plate portion 40 is arranged in a state of being placed on the upper end of the mouth portion 20 (inner plug attaching portion 22). A spout 40 a for pouring the contents in the container body 2 is formed at the center of the top plate 40.
The inner cylinder portion 43 has a substantially cylindrical shape and is fitted inside the mouth portion 20.

As shown in FIGS. 1 to 4, the outer cylinder portion 41 is a substantially cylindrical shape that is provided on the outer side of the mouth portion 20 (inner plug attachment portion 22), and is formed on the inner peripheral surface of the outer cylinder portion 41. A convex portion 41a bulging inwardly in the inner plug radial direction is formed over the entire periphery, and the convex portion 41a and the convex portion 22a of the inner plug attached portion 22 are engaged with each other. Accordingly, the inner plug 4 is undercut fitted into the mouth portion 20. Further, the lower part of the outer cylinder part 41 is formed thin so that the inner diameter dimension thereof is larger than the inner diameter dimension of the upper part of the outer cylinder part 41, and the outer peripheral surface of the inner plug attaching part 22 and the inner periphery of the outer cylinder part 41 are formed. A gap is formed between the lower part of the surface. An engagement convex portion 41 b bulging radially inward is formed at the lower portion of the inner peripheral surface of the outer cylinder portion 41.
Furthermore, a plurality of through holes 44 are formed at the lower end portion of the outer cylinder portion 41 positioned below the engagement convex portion 41 b and spaced from each other in the circumferential direction of the outer cylinder portion 41. Each through hole 44 opens at the lower end of the outer cylinder portion 41, that is, opens at the lower end of the outer cylinder portion 41 along the central axis L on the side opposite to the opening end side of the mouth portion 20.

The pressure contact member 5 is a member that is attached to the upper end portion (inner plug attaching portion 22) of the mouth portion 20 in the same manner as the inner plug 4 described above, and a mounting cylinder 50 that is disposed along the central axis L. The press-contacting cylinder part 51 disposed along the center axis L on the outside of the mounting cylinder 50 and the connecting part 52 disposed perpendicularly to the center axis L and connecting the mounting cylinder 50 and the press-contacting cylinder part 51. And. The mounting cylinder 50, the press-contact cylinder part 51, and the connecting part 52 are integrally formed.
The mounting cylinder 50 has a substantially cylindrical shape provided around the outside of the mouth part 20 and is accommodated in a gap between the mouth part 20 (inner plug attaching part 22) and the lower part of the outer cylinder part 41. Further, an engaging convex portion 50b bulging outward in the radial direction is formed at the upper portion of the outer peripheral surface of the mounting cylinder 50, and this engaging convex portion 50b and the engaging convex portion 41b of the above-described inner plug 4 are formed. Is engaged with the inner plug 4 undercut.

The press-contact cylinder portion 51 is arranged with a gap on the outer side in the radial direction of the mounting cylinder 50, and is divided into a plurality of press-contacting pieces 53 along the mounting cylinder circumferential direction. The plurality of press contact pieces 53 are arranged at intervals in the circumferential direction of the mounting cylinder.
Each pressure contact piece 53 is inserted into each of a plurality of through holes 44 formed in the outer cylinder portion 41. In this inserted state, the outer surface of each pressure contact piece 53 protrudes radially outward from the outer peripheral surface of the outer cylinder portion 41 and the cap screw portion 21. Further, the inner surface of the pressure contact piece 53 facing the outer peripheral surface of the mounting cylinder 50 is arranged on the radially inner side with respect to the outer peripheral surfaces of the outer cylinder part 41 and the cap screw part 21.

  The connecting portion 52 is divided into a plurality of connecting pieces 54 along the mounting cylinder circumferential direction, similarly to the press-contacting cylinder portion 51, and the plurality of connecting pieces 54 are arranged at intervals in the mounting cylinder circumferential direction. . The plurality of connecting pieces 54 connect the press contact pieces 53 to the mounting cylinder 50 separately so that the press contact pieces 53 can be elastically deformed in the radial direction with respect to the mounting cylinder 50. Specifically, each connecting piece 54 is connected to the middle portion of the mounting cylinder 50 along the central axis L and the upper end portion (one end side portion) of the press contact piece 53.

And the upper end edge (one end edge) 53c located in an upper end part among the end edges of said press-contacting piece 53 is facing the inner peripheral edge 44a of the through-hole 44 in the axial direction (direction along the center axis L).
Further, when the cap is screwed, the outer surface of the pressure contact piece 53 is pressed against the thread 36a of the female thread portion 36 and elastically deformed in the mounting cylinder radial direction. That is, as shown in FIGS. 2 and 3, the outer diameter D <b> 3 of the press contact cylinder portion 51 in a state before deformation where the external force is not applied to the press contact piece 53 (a state where the cap 3 is not screwed) is The internal thread portion 36 is larger than the inner diameter D4.

  Various materials can be adopted for the pressure contact member 5 configured as described above according to the purpose. For example, a general-purpose resin such as a polyolefin resin or a polyester resin, an elastic material such as a thermoplastic elastomer, butyl rubber, or silicon rubber can be used.

  Next, the operation of the container 1 having the above configuration will be described.

First, as shown in FIGS. 3 and 4, the inner plug 4 and the pressure contact member 5 are attached to the mouth portion 20 of the container body 2. At the time of this attachment, first, the pressure contact member 5 is attached to the mouth portion 20 so that the inner plug attaching portion 22 of the mouth portion 20 is inserted inside the attachment cylinder 50. Next, the inner plug 4 is attached to the mouth portion 20 so that the plurality of pressure contact pieces 53 enter the respective through holes 44 from the opening at the lower end of the outer cylinder portion 41.
At this time, the inner tube portion 43 of the inner plug 4 is fitted inside the inner plug attachment portion 22, and the upper end of the inner plug attachment portion 22 contacts the lower surface of the top plate portion 40 of the inner plug 4. The inner plug 4 is fitted into the inner plug attaching portion 22 until it comes into contact. Thereby, the convex part 41a of the outer cylinder part 41 and the convex part 22a of the inner plug attaching part 22 are engaged, and the inner plug 4 is undercut fitted to the mouth part 20. Further, when the inner plug 4 is attached to the mouth portion 20, the engagement convex portion 50 b of the pressure contact member 5 and the engagement convex portion 41 b of the inner plug 4 are engaged, and the pressure contact member 5 is in the middle plug 4. Undercut fit into.
In addition, as described above, the pressure contact member 5 and the inner plug 4 are not attached to the mouth portion 20 of the container body 2 in order, but, for example, the pressure contact member 5 is previously fitted and integrated with the inner plug 4. In this state, the integrated object can be attached to the mouth portion 20 of the container body 2.

Next, the cap 3 is attached to the mouth 20 of the container body 2 to which the inner plug 4 and the pressure contact member 5 are attached. At this time, as shown in FIG. 1, the cap 3 and the mouth 20 of the container body 2 are relatively centered while the mouth 20 with the inner plug 4 and the pressure contact member 5 is inserted inside the cap 3. By rotating around the axis L, the female threaded portion 36 of the cap 3 is screwed into the male threaded portion 24 of the cap threaded portion 21.
Here, since the outer diameter D3 of the press-contacting cylinder portion 51 composed of a plurality of press-contacting pieces 53 is larger than the inner diameter D4 of the female screw portion 36, and each press-contacting piece 53 can be elastically deformed in the inner plug diameter direction, 53 is pressed by the thread 36a of the female thread 36 and elastically deforms inwardly in the mounting cylinder radial direction as indicated by a two-dotted line in FIG. 3, and the outer surface of the pressure contact piece 53 is thread of the female thread 36 of the cap 3. The screw thread 36 a of the female screw portion 36 slides on the outer surface of the press contact piece 53. As a result, a repulsive force from the pressure contact piece 53 elastically deformed radially inward acts on the female thread portion 36.
Further, when the cap 3 is attached, the thread 36a of the female thread portion 36 moves downward with respect to the press contact piece 53. However, since the press contact piece 53 is connected to the connecting piece 54 at the upper end thereof, the press contact piece. 53 does not turn up radially outward by the thread 36a of the female thread portion 36.

When removing the cap 3 screwed into the mouth portion 20 of the container body 2, the cap 3 and the mouth portion 20 of the container body 2 are rotated in the reverse direction around the central axis L, and the cap screw portion The cap 3 screwed to 21 is removed. Even in this case, the pressure contact piece 53 is pressed by the screw thread 36a of the female thread portion 36 and elastically deformed radially inward in the same manner as in the cap mounting described above, and the outer surface of the pressure contact piece 53 is the outer surface of the female thread portion 36 of the cap 3. The screw thread 36 a is pressed against the screw thread 36 a and the screw thread 36 a of the female thread portion 36 slides on the outer surface of the pressure contact piece 53. As a result, a repulsive force from the pressure contact piece 53 elastically deformed radially inward acts on the female thread portion 36.
Further, when the cap 3 is removed, there is a case where a force that turns the outer side of the press contact piece 53 radially outward is applied to the press contact piece 53 such that the lower end edge (the other end edge) of the press contact piece 53 is caught by the thread 36a of the female thread portion 36. However, in this case, since the upper end edge 53c of the pressure contact piece 53 is pressed against the inner peripheral edge 44a of the through hole 44, the occurrence of this turning can be prevented.

  And in the state which removed the cap 3 from the opening part 20 of the container main body 2, although the some press contact piece 53 is exposed outside, since the inner surface side of the press contact piece 53 is accommodated in the through-hole 44. FIG. The corner portion on the inner surface side of the pressure contact piece 53 is covered with the outer cylinder portion 41. For this reason, it is possible to prevent the lower end edge of the pressure contact piece 53 from being caught by fingers, cloth or cotton.

As described above, according to the container 1 having the above-described configuration, the repulsive force from the elastically deformed pressure contact piece 53 acts on the cap 3 when the cap 3 is attached to and detached from the mouth portion 20 of the container body 2. Therefore, relative wobble between the cap 3 and the container main body 2 when the cap is attached / detached can be suppressed. As a result, the cap 3 can be easily attached and detached stably.
Further, the pressure contact piece 53 is arranged so that its outer surface protrudes radially outward from the through hole 44 of the inner plug 4, and the inner surface side is accommodated in the through hole 44. The finger, cloth, cotton, or the like can be prevented from being caught, and the press contact piece 53 can be prevented from being turned outward in the radial direction, thereby protecting the press contact piece 53.
Even if the inner surface of the press contact piece 53 is located radially outward from the through hole 44, the end edge of the press contact piece 53 connected to the connecting piece 54 is pressed against the inner peripheral edge 44 a of the through hole 44, so that press contact is achieved. It is possible to prevent the piece 53 from being turned radially outward.

  Moreover, since it is the structure which attaches the inner plug 4 and the press-contacting member 5 to the opening part 20, since the position of the press-contacting piece 53 with respect to the opening part 20 can be changed easily, the internal diameter of the internal thread part 36 of the cap 3 and an internal thread part It is possible to optimally set the position of the pressure contact piece 53 in accordance with the position of the 36 screw threads 36a, the diameter of the mouth portion 20 of the container body 2, and the like. Thereby, it can apply widely with respect to the various containers 1 from which the shape of a mouth part 20 of the container main body 2, the cap 3, and a dimension differ.

  Further, since the plurality of press contact pieces 53 are arranged at intervals in the circumferential direction of the mounting cylinder 50, an increase in rotational torque when the cap 3 is attached and detached can be suppressed, and the cap 3 is connected to the mouth portion of the container body 2. Therefore, the cap 3 can be attached and detached easily.

  In addition, when the pressure contact member 5 and the inner stopper 4 are mounted on the mouth portion 20 of the container body 2, after the pressure contact member 5 is mounted, the plurality of pressure contact pieces 53 are separated from the opening at the lower end of the outer cylinder portion 41. Since the inner plug 4 may be attached to the mouth portion 20 so as to enter the through hole 44, the inner stopper 4 and the pressure contact member 5 can be easily assembled to the mouth portion 20 of the container body 2. Further, when the inner plug 4 is mounted, the pressure contact piece 53 is guided into the through hole 44 from the opening portion at the lower end in the axial direction, so that the relative positioning of the inner plug 4 and the pressure contact member 5 is easily performed. be able to.

As mentioned above, although embodiment of the container concerning this invention was described, this invention is not limited to above-described one Embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, although the thread 36a of the female thread portion 36 of the cap 3 is in pressure contact with the outer surface of the press contact piece 53 when the cap is attached and detached, the present invention is not limited to this. That is, for example, as shown in FIGS. 5 to 7, ribs 57, 58, 59 may protrude from the outer surface of the pressure contact piece 53. Here, the rib 57 shown in FIG. 5 is formed on the outer surface of the pressure contact piece 53 so as to extend in the direction of the central axis L1. Also, the rib 58 shown in FIG. 6 is formed on the outer surface of the pressure contact piece 53 so as to extend perpendicular to the direction of the central axis L1. Further, the rib 59 shown in FIG. 7 is formed in a dot shape at the central portion of the outer surface of the pressure contact piece 53. Note that the outer surface of the pressure contact piece 53 is not limited to the ribs 57, 58, 59, and various shapes of ribs can be formed.

  When the ribs 57, 58 and 59 as shown in FIGS. 5 to 7 are formed, the screw thread 36a of the female thread portion 36 of the cap 3 is pressed against the tips of the ribs 57, 58 and 59 when the cap is attached and detached. The sliding contact area of the pressure contact piece 53 can be kept small. That is, the frictional resistance acting between the thread 36a of the female thread portion 36 and the outer surface side of the pressure contact piece 53 when the cap is attached / detached is further reduced compared to the above-described embodiment, and the rotational torque during attachment / detachment can be suppressed. The cap 3 can be attached and detached more easily.

  Moreover, although the cap 3 is formed by assembling a plurality of parts (the inner cylinder member 30, the outer cylinder member 31, and the packing 33), the present invention is not limited to a cap consisting of a plurality of parts, and consists of a single part. It may be a cap.

  Further, the inner plug 4 has a configuration in which the outer cylinder portion 41 is suspended from the outer edge portion of the top plate portion 40 where the spout 40 a is formed and the inner cylinder portion 43 is suspended from the lower surface of the top plate portion 40. However, the present invention may be an internal plug having another configuration. For example, the upper end part of the outer cylinder part 41 and the upper end part of the inner cylinder part 43 may be connected, and the top plate part 40 may be provided at the lower end part of the inner cylinder part 43, or the top plate part It may have a configuration in which a cylindrical portion communicating with the spout 40a is erected on the upper surface of 40, a configuration in which a plurality of spouts are formed in the top plate portion 40, or a ceiling. The structure by which the spout is not formed in the board part 40 may be sufficient.

  Further, the pressure contact member 5 only needs to be capable of elastically deforming at least the pressure contact piece 53 with respect to the mounting cylinder 50 in the radial direction. For example, instead of being formed of a single material, only the pressure contact piece 53 is used. May be formed of a soft material, and the mounting cylinder 50 and the connecting piece 54 may be formed of a hard synthetic resin material. In this case, the mounting cylinder 50 and the connecting piece 54 and the pressure contact piece 53 may be integrally formed by insert molding, two-color molding, or the like, or may be bonded using an adhesive. Alternatively, either one or both of the connecting piece 54 and the pressure contact piece 53 may be melted and welded, or either one of the connection piece 54 and the pressure contact piece 53 may be fitted to the other. Also good.

Further, although the connecting piece 54 is connected to the middle part of the mounting cylinder 50 along the central axis L, it may be connected to any position of the mounting cylinder 50 along the central axis L. You may be connected to the upper end and lower end of the mounting cylinder 50 which follows. Therefore, the connecting piece 54 may connect, for example, the lower end portion of the mounting cylinder 50 and the upper end portion of the press contact piece 53.
Further, although the connecting piece 54 is connected to the upper end portion of the press contact piece 53 along the center axis L, it may be formed at an intermediate portion or a lower end portion of the press contact piece 53 along the center axis L.
Further, although the connecting piece 54 is formed in a plate shape orthogonal to the central axis L, it is formed in a plate shape along the central axis L and connects the side end portion of the press contact piece 53 and the intermediate portion of the mounting cylinder 50. You can also

Further, the through hole 44 into which the pressure contact piece 53 is inserted opens at the lower end of the outer cylinder portion 41. However, it only has to penetrate at least in the radial direction of the outer cylinder portion 41. For example, the outer cylinder portion along the center axis L 41 may be formed in the middle.
In this case, not only the upper end edge 53 c of the pressure contact piece 53 opposes the inner peripheral edge 44 a of the through hole 44, but also the lower end edge opposite to the upper end edge 53 c of the press contact piece 53 is aligned with the inner peripheral edge 44 a of the through hole 44. Opposite direction.

  For example, when the connecting piece 54 is connected to the lower end portion (one end side portion) of the pressure contact piece 53, the cap 3 is attached to the mouth portion 20 of the container body 2 to which the inner plug 4 and the pressure contact member 5 are attached. In addition, there is a case where a force of turning the outer side in the radial direction acts on the press contact piece 53 by the upper end edge (the other end edge) of the press contact piece 53 being hooked on the screw thread 36a of the female thread portion 36. Since the lower end edge of the pressure contact piece 53 is pressed against the inner peripheral edge 44a of the through-hole 44, the turning-up can be prevented. In this configuration, when the cap 3 screwed into the mouth portion 20 of the container body 2 is removed, the thread 36a of the female screw portion 36 moves upward with respect to the pressure contact piece 53. Since the lower end portion is connected to the connecting piece 54, the press contact piece 53 is not turned radially outward by the thread 36 a of the female screw portion 36.

  In addition, although the inner plug 4 is attached to the mouth portion 20 of the container body 2, the outer cylinder portion 41 having at least a plurality of through holes 44 is formed on the outer peripheral surface of the inner stopper portion 22 of the mouth portion 20. It only needs to be arranged and mounted. In this case, the outer cylinder portion 41 and the pressure contact member 5 are not limited to being attached to the upper end portion of the mouth portion 20, and at least when the cap 3 is screwed, the thread 36 a of the female screw portion 36 is the outer surface of the pressure contact piece 53. It only needs to be in pressure contact with the side. Therefore, the outer cylinder part 41 and the press-contact member 5 may be attached to the lower end part of the mouth part 20, for example.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a longitudinal half sectional view showing a container which is one embodiment of the present invention. It is a disassembled sectional view of the container shown in FIG. It is a principal part expanded sectional view which shows the inner stopper and press-contact member with which the opening part of the container main body was mounted | worn in the container shown in FIG. It is a side view which shows the state which removed the cap from the opening | mouth part of the container main body in the container shown in FIG. It is a principal part expansion perspective view which shows the outer surface side shape of a press-contact member in the container which is other embodiment of this invention. It is a principal part expansion perspective view which shows the outer surface side shape of a press-contact member in the container which is other embodiment of this invention. It is a principal part expansion perspective view which shows the outer surface side shape of a press-contact member in the container which is other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Container main body 3 Cap 4 Inner plug 5 Pressure contact member 20 Port 24 Male thread part 35 Peripheral wall part 36 Female thread part 36a Screw thread 40 Top plate part 40a Outlet 41 Outer cylinder part 44 Through-hole 44a Inner peripheral edge 50 Mounting cylinder 53 Pressure contact Piece 53c upper edge (one edge)
54 Connecting pieces 57, 58, 59 Ribs

Claims (3)

A container main body having a mouth portion having a male screw portion formed on the outer peripheral surface, a cap formed with a female screw portion on the inner peripheral surface of the peripheral wall portion and screwed to the mouth portion, and between the mouth portion and the cap An inner plug and a pressure contact member disposed in
The pressure contact member includes a mounting cylinder to be mounted on the mouth portion, a plurality of pressure contact pieces that are spaced apart in the circumferential direction with a gap formed on a radially outer side of the mounting cylinder, and these pressure contact pieces. A plurality of connecting pieces for individually connecting the mounting cylinder and the pressure contact pieces so that the mounting cylinder can be elastically deformed in the radial direction of the mounting cylinder,
The inner plug includes a top plate portion in which a spout is formed, and an outer cylinder portion that is suspended from the outer peripheral edge of the top plate portion and is attached to the outer peripheral surface of the mouth portion.
The plurality of press contact pieces are individually inserted into a plurality of through holes formed in the outer cylinder portion at intervals in the circumferential direction so that the outer surface protrudes from the outer peripheral surface of the outer cylinder portion. The container, wherein the outer surface side of the pressure contact piece is pressed against the thread of the female screw portion when being worn, and the pressure contact piece is elastically deformed inwardly in the mounting cylinder radial direction. The container according to claim 1,
The container, wherein the through-hole is opened in the outer cylinder portion at the lower end opposite to the upper end on the opening end side of the mouth portion along the axial direction. In the container according to claim 1 or claim 2,
A container characterized by ribs projecting from the outer surface of the pressure contact piece.

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