JP2023161985A - tube container - Google Patents

Abstract

To provide a tube container capable of easily suppressing the intrusion of water from a boundary between a discharge cap and a container body on the outer surface and reducing the amount of a content which remains in the container.SOLUTION: A tube container 1 has a tube-shaped container body 2 and a discharge cap 3. The container body 2 has a double cylinder part 8 composed of a wide-mouthed opening peripheral wall 6 and a shoulder peripheral wall 7 projecting from a shoulder part 2c so as to surround the opening peripheral wall 6. The discharge cap 3 has a cap outer peripheral wall 15 which has a screw part 19 and is pinched between the opening peripheral wall 6 and the shoulder peripheral wall 7, and an annular contact surface 15a which faces an apical surface 7a of the shoulder peripheral wall 7 and abuts on the apical surface 7a over the whole periphery. The screw part 19 is transferred to the double cylinder part 8 by pinching the cap outer peripheral wall 15 between the opening peripheral wall 6 and the shoulder peripheral wall 7, and thereby the cap outer peripheral wall 15 can be screwed out of the double cylinder part 8.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to tube containers.

A tube container having a tube-shaped container body and a discharge cap is known (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 8-26308

When a tube container is used in a water area such as a sink or bathroom, if water enters through the boundary between the discharge cap and the container body on the outer surface of the tube container, water may leak out when discharging the contents. Since there is a risk that water may leak out and cause discomfort to the user, or cause contamination such as mold at the entry point, it is desirable to have a structure that can suppress water entry from the above-mentioned boundaries. Further, it is desirable that the tube container has a structure that can reduce the amount of contents that remain inside without being used up, that is, the amount of remaining contents.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tube container that can easily suppress the intrusion of water from the boundary between the discharge cap and the container body on the outer surface and reduce the amount of remaining contents.

One aspect of the present invention is as follows.

[1]
It has a tubular container body and a discharge cap,
The container body has a double cylindrical portion formed by a wide opening peripheral wall and a shoulder peripheral wall protruding from a shoulder portion so as to surround the opening peripheral wall,
The discharge cap includes a cap outer circumferential wall having a threaded portion and sandwiched between the opening circumferential wall and the shoulder circumferential wall, and an annular contact surface that faces the tip surface of the shoulder circumferential wall over the entire circumference and abuts the tip surface. , has
The outer circumferential wall of the cap is sandwiched between the opening circumferential wall and the shoulder circumferential wall, so that the threaded portion is transferred to the double cylindrical portion, so that the outer circumferential wall of the cap can be screwed off from the double cylindrical portion. A tube container.

[2]
The tube container according to [1], wherein the threaded portion is provided on the outer circumferential surface of the cap outer circumferential wall.

[3]
The tube container according to [1] or [2], wherein the annular contact surface forms a boundary between the discharge cap and the container body on the outer surface of the tube container.

According to the present invention, it is possible to provide a tube container that can easily suppress the intrusion of water from the boundary between the discharge cap and the container body on the outer surface and reduce the amount of remaining contents.

FIG. 1 is a longitudinal sectional view showing a tube container according to an embodiment of the present invention. 2 is a side view of the tube container shown in FIG. 1. FIG. FIG. 2 is a longitudinal cross-sectional view showing the tube container shown in FIG. 1 in a state when the discharge cap is screwed off from the container body.

Embodiments of the present invention will be described below by way of example with reference to the drawings.

As shown in FIGS. 1 and 2, in one embodiment of the present invention, a tube container 1 has a container body 2 and a discharge cap 3. As shown in FIGS.

The container body 2 has a tube shape having an open end 2a and a closed end (not shown). The container body 2 also has a cylindrical opening 2b centered on the central axis O, a shoulder 2c whose diameter increases from the opening 2b, and a body 2d extending from the shoulder 2c to the closed end. It is composed of an end member 4 and a tube member 5. The open end member 4 and the tube member 5 are each made of resin and are integrally molded, and are joined to each other by welding or the like. The open end 2a is formed by the open end member 4, and the closed end is formed by the tube member 5.

The mouth portion 2b constitutes a wide opening peripheral wall 6 into which a user can insert a finger. Further, the container main body 2 has a shoulder circumferential wall 7 that protrudes from the shoulder portion 2c so as to surround the opening circumferential wall 6. The shoulder peripheral wall 7 has a cylindrical shape centered on the central axis O. The container body 2 has a double cylindrical portion 8 constituted by an opening circumferential wall 6 and a shoulder circumferential wall 7. The double cylindrical portion 8 is formed by the open end member 4 .

The inner peripheral surface of the opening peripheral wall 6 has a plurality of vertical ribs 9 arranged intermittently in the circumferential direction over the entire circumference and each extending in the axial direction. The plurality of vertical ribs 9 facilitates the transfer of a threaded portion 19, which will be described later.

For convenience of explanation, the direction along the central axis O is also referred to as the axial direction, the direction from the open end 2a to the closed end (upward in FIG. 1) along the central axis O is also referred to as upward, and the opposite direction is referred to as downward. The direction along the straight line perpendicular to the central axis O is also referred to as the radial direction, the direction around the central axis O is also referred to as the circumferential direction, and the cross section including the central axis O is also referred to as the longitudinal cross section.

Contents (not shown) are accommodated inside the container body 2. The content is not particularly limited, but in this embodiment, it is a viscous material such as facial cleansing foam. Note that the contents are not limited to cosmetics such as facial cleansing foam.

The discharge cap 3 includes a cap body 10 and a lid body 11 rotatably connected to the cap body 10 via a hinge portion 12, and is an integrally molded product made of resin.

The cap body 10 includes an open end wall 14 having a discharge port 13 and covering the open end 2a, and a cap outer circumferential wall 15 extending upward from the outer peripheral edge of the open end wall 14 and having a cylindrical shape centered on the central axis O. , has.

The opening end wall 14 includes a partition wall 14a, a cylindrical discharge cylinder 14b extending downward from the partition wall 14a, a cylindrical seal cylinder 14c extending upward from the partition wall 14a and centered on the central axis O, and a lower surface of the partition wall 14a. It has an annular body side abutment surface 14d constituted by an outer peripheral edge thereof, and a fitting outer circumferential surface 14e extending downward from the inner peripheral edge of the body side abutment surface 14d. The inner peripheral surface of the discharge cylinder 14b forms the discharge port 13.

The tip (lower end) of the opening circumferential wall 6 is sandwiched between the cap outer circumferential wall 15 and the seal cylinder 14c, thereby forming an open end seal portion 16 that prevents the contents from passing through.

The lid 11 can open and close the discharge port 13 by rotating via a hinge. That is, the lid body 11 is rotatable via the hinge between a closed lid position that covers the discharge port 13 and an open lid position that opens the discharge port 13. The lid body 11 also includes a lid body 17 that faces the partition wall 14a in the closed position, and a discharge port seal portion 18 that extends upward from the lid body 17 and fits into the discharge cylinder 14b in the closed position.

The upper surface of the outer peripheral edge of the lid main body 17 in the closed position is an annular lid side that faces the main body side contact surface 14d over the entire circumference and can suppress water intrusion by contacting the main body side contact surface 14d. It constitutes the contact surface 17a. It is preferable that the lid side abutting surface 17a abuts the main body side abutting surface 14d over the entire circumference. The fitting inner peripheral surface 17b extending downward from the inner peripheral edge of the lid side contact surface 17a in the closed lid position is fitted to the fitting outer peripheral surface 14e, so that the lid side contact surface 17a becomes the main body side contact surface. The lid body 11 is held in the closed lid position where it abuts on the lid 14d, thereby suppressing water intrusion. The fitting between the inner fitting surface 17b and the outer fitting surface 14e can be released by applying a predetermined force in the direction of rotating the lid 11 from the closed position to the open position.

In the closed position, the lid main body 17 has a cylindrical shape with a bottom, and a grounding portion 17c for inverting the tube container 1 is formed on the bottom surface.

The cap outer circumferential wall 15 has a threaded portion 19 provided on the outer circumferential surface of the cap outer circumferential wall 15, and is sandwiched between the opening circumferential wall 6 and the shoulder circumferential wall 7. The threaded portion 19 may be configured as a multiple thread such as a double thread, or may be configured as a single thread. Further, the threaded portion 19 may be configured as a continuous screw in which the threads are provided continuously in the circumferential direction, or may be configured as an intermittent screw in which the threads are provided intermittently in the circumferential direction.

Further, the cap outer peripheral wall 15 has an annular contact surface 15a that faces the distal end surface 7a (lower end surface) of the shoulder peripheral wall 7 over the entire circumference and can suppress water intrusion by abutting against the distal end surface 7a. It is preferable that the annular contact surface 15a abuts against the tip end surface 7a of the shoulder peripheral wall 7 over the entire circumference. The annular contact surface 15a forms a boundary 20 between the discharge cap 3 and the container body 2 on the outer surface of the tube container 1. The outer circumferential surface of the cap outer circumferential wall 15 forms a reduced diameter portion in which a portion above the annular contact surface 15a is smaller in diameter than a portion below the annular contact surface 15a, and a threaded portion is provided in the reduced diameter portion. 19 are provided.

The discharge cap 3 is attached to the container body 2 by a capping operation. By this plugging operation, the cap outer circumferential wall 15 is sandwiched between the opening circumferential wall 6 and the shoulder circumferential wall 7, and the annular contact surface 15a abuts on the distal end surface 7a of the shoulder circumferential wall 7.

By sandwiching the cap outer circumferential wall 15 between the opening circumferential wall 6 and the shoulder circumferential wall 7, the threaded portion 19 is transferred to the double cylinder portion 8 (more specifically, the plurality of vertical ribs 9). This transfer of the threaded portion 19 allows the cap outer circumferential wall 15 to be screwed off from the double cylindrical portion 8. Therefore, when the contents decrease due to use and it becomes difficult to discharge, the discharge cap 3 can be easily removed from the container body 2 by unscrewing as shown in FIG. You can scoop things up and use them.

The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the gist thereof.

Therefore, the tube container 1 of the embodiment described above has a tube-shaped container main body 2 and a discharge cap 3, and the container main body 2 extends from the shoulder portion 2c so as to surround the wide opening peripheral wall 6 and the opening peripheral wall 6. The discharge cap 3 has a double cylinder part 8 constituted by a protruding shoulder peripheral wall 7, and a cap outer peripheral wall 15 having a threaded part 19 and sandwiched between the opening peripheral wall 6 and the shoulder peripheral wall 7, and a shoulder peripheral wall. 7, and an annular contact surface 15a that faces the entire circumference of the tip surface 7a and contacts the tip surface 7a, and when the cap outer circumferential wall 15 is sandwiched between the opening circumferential wall 6 and the shoulder circumferential wall 7, a threaded portion is formed. As long as the tube container 1 is such that the outer circumferential wall 15 of the cap can be screwed off from the double cylinder part 8 by being transferred to the double cylinder part 8, the present invention can be modified.

For example, the opening circumferential wall 6 (mouth portion 2b), the shoulder circumferential wall 7, and the cap outer circumferential wall 15 may each be configured in a cylindrical shape other than the cylindrical shape, as long as the above-mentioned functions are not impaired. The discharge cap 3 is not limited to the structure having the lid body 11. The lid body 11 may be provided separately from the cap body 10. The lid body 11 is not limited to the configuration that forms the grounding portion 17c. The discharge cap 3 may be formed by assembling a plurality of members. The threaded portion 19 may be provided on the inner peripheral surface of the cap outer peripheral wall 15. In this case, the plurality of vertical ribs 9 may be provided on the outer peripheral surface of the opening peripheral wall 6. The number of vertical ribs 9 is not limited to a plurality, but only one may be provided. It is also possible to adopt a configuration in which the vertical ribs 9 are not provided.

In addition, it is preferable that the tube container 1 of the embodiment mentioned above is the tube container 1 in which the threaded part 19 is provided in the outer peripheral surface of the cap outer peripheral wall 15 in the said structure.

The tube container 1 of the embodiment described above is preferably a tube container 1 in which the annular contact surface 15a forms a boundary 20 between the discharge cap 3 and the container body 2 on the outer surface of the tube container 1 in the above configuration.

1 Tube container 2 Container main body 2a Opening end 2b Mouth part 2c Shoulder part 2d Body part 3 Discharge cap 4 Opening end member 5 Tube member 6 Opening peripheral wall 7 Shoulder peripheral wall 7a Tip surface 8 Double cylinder part 9 Vertical rib 10 Cap main body 11 Lid Body 12 Hinge 13 Discharge port 14 Opening end wall 14a Partition wall 14b Discharge cylinder 14c Seal cylinder 14d Main body side contact surface 14e Fitting outer peripheral surface 15 Cap outer peripheral wall 15a Annular contact surface 16 Opening end seal part 17 Lid main body 17a Lid body side Contact surface 17b Fitting inner peripheral surface 17c Grounding portion 18 Discharge port seal portion 19 Threaded portion 20 Boundary O Center axis

Claims (3)

It has a tubular container body and a discharge cap,
The container body has a double cylindrical portion formed by a wide opening peripheral wall and a shoulder peripheral wall protruding from a shoulder portion so as to surround the opening peripheral wall,
The discharge cap includes a cap outer circumferential wall having a threaded portion and sandwiched between the opening circumferential wall and the shoulder circumferential wall, and an annular contact surface that faces the tip surface of the shoulder circumferential wall over the entire circumference and abuts the tip surface. , has
The outer circumferential wall of the cap is sandwiched between the opening circumferential wall and the shoulder circumferential wall, so that the threaded portion is transferred to the double cylindrical portion, so that the outer circumferential wall of the cap can be screwed off from the double cylindrical portion. A tube container. The tube container according to claim 1, wherein the threaded portion is provided on the outer circumferential surface of the cap outer circumferential wall. The tube container according to claim 1 or 2, wherein the annular contact surface forms a boundary between the discharge cap and the container body on the outer surface of the tube container.