JP2022081931A - Tubular container and discharge container - Google Patents

Abstract

To provide a tubular container and a discharge container capable of simplifying a mold structure while maintaining a function of preventing water from entering in a state where a discharge cap is mounted.SOLUTION: A tubular container 1 has: a trunk part 1a which is sealed at one end and stores a content inside; a shoulder part 1b which is disposed at the other end of the trunk part 1a; and a mouth part 1c which is disposed at the shoulder part 1b and allows a discharge cap 3 to be mounted. The shoulder part 1b has an annular wall 2g which extends in a direction of going around an axis line O of the mouth part 1c, and allows a tip of an outer peripheral wall 3g of the discharge cap 3 mounted on the mouth part 1c to approach or abut in a direction from the other end to the one end. An inner peripheral surface 2j of the annular wall 2g is an inclined plane inclining in a direction from the other end to the one end as approaching the axis line O.SELECTED DRAWING: Figure 2

Description

The present invention relates to a tube container and a discharge container including the tube container.

Conventionally, a tube container containing, for example, contents such as a facial cleanser, and a discharge container in which a discharge cap or the like is attached to such a tube container are known (see, for example, Patent Document 1). The discharge container of Patent Document 1 has a flat top surface of a lid so that the mouth portion of the tube container can be stored in an inverted position located on the lower side. That is, since the contents are collected near the mouth of the tube container during storage, the contents can be immediately discharged by pressing the body during use.

In many cases, such a discharge container is stored as it is in a bathroom or the like even after being used in a place where water is used such as a bathroom or a washroom. Here, when water droplets flow toward the discharge cap along the outer surface of the tube container and water enters through the gap between the shoulder of the tube container and the outer peripheral wall of the discharge cap, the water accumulated inside the discharge cap is the cause. This may cause the growth of mold and the growth of germs. Therefore, as shown in Patent Document 1, in the conventional discharge container, a circular wall portion is erected vertically from the shoulder portion of the tube container (in the direction along the axis of the mouth portion), and the wall portion of the wall portion is raised. The outer peripheral surface of the outer peripheral wall of the discharge cap having a cylindrical shape is brought into contact with the inner peripheral surface. That is, when the tube container and the discharge cap come into contact with each other in the circumferential direction, water droplets traveling on the outer surface of the tube container are less likely to enter the inside of the discharge cap from between them, so that the tube container can be used hygienically.

Japanese Unexamined Patent Publication No. 2020-7018

By the way, depending on the molding conditions and the like, the shapes of the wall portion of the tube container and the outer peripheral wall of the discharge cap described above may vary in the radial direction and may not be the intended circular shape. That is, a gap may be formed between the wall portion of the tube container and the outer peripheral wall of the discharge cap, and water may collect in this gap, leading to the generation of mold and the propagation of various germs. On the other hand, if the wall of the tube container is made slightly smaller (or the outer wall of the discharge cap is made slightly larger) from the beginning, it is possible to absorb variations during molding and prevent gaps from forming. When attaching the discharge cap to the tube container, the discharge cap must be rotated with a strong force, which causes a problem in terms of workability.

The present invention has been made in view of such problems, and can effectively prevent the ingress of water with the discharge cap attached regardless of the variation in shape due to the molding conditions and the like. It is an object of the present invention to provide a tube container that does not impair workability when attaching a discharge cap, and a discharge container provided with such a tube container.

The present invention has a body portion in which one end is sealed to accommodate the contents inside, a shoulder portion provided in the other end portion of the body portion, and a mouth portion provided in the shoulder portion to which a discharge cap can be attached. It is a tube container with
The shoulder portion extends in a direction that orbits the axis of the mouth portion, and the tip end portion of the outer peripheral wall of the discharge cap attached to the mouth portion is oriented from the other end portion toward the one end portion. Has an annular wall in close proximity or in contact with
The inner peripheral surface of the annular wall is a tube container which is an inclined surface that inclines in a direction from the other end to the one end as it approaches the axis.

Further, the present invention comprises a tube container having a body portion in which one end is sealed and accommodating the contents inside, a shoulder portion provided in the other end portion of the body portion, and a mouth portion provided in the shoulder portion. ,
A discharge cap equipped with a discharge port for discharging the contents and attached to the port portion,
A discharge container including a lid that covers the discharge port and is attached to the discharge cap to maintain the tube container in an inverted posture.
The shoulder portion extends in a direction that orbits the axis of the mouth portion, and the tip end portion of the outer peripheral wall of the discharge cap attached to the mouth portion is oriented from the other end portion toward the one end portion. Has an annular wall in close proximity or in contact with
The inner peripheral surface of the annular wall is also a discharge container, which is an inclined surface that inclines in a direction from the other end to the one end as it approaches the axis.

In the tube container of the present invention, the inner peripheral surface of the annular wall provided on the shoulder portion is an inclined surface that inclines toward one end from the other end of the tube container as it approaches the axis of the mouth. That is, in the state where the tube container is in the inverted posture, this inclined surface is inclined upward as it approaches the axis of the mouth, so that even if water droplets flow along the body of the tube container, they cross the inclined surface. It cannot flow, and therefore water can be prevented from entering the inside of the discharge cap. Further, since the water intrusion prevention function according to the present invention is obtained by the inner peripheral surface of the annular wall being an inclined surface as described above, it is assumed that the shapes of the tube container and the discharge cap are dispersed in the radial direction as in the conventional case. However, it does not significantly affect the intrusion prevention function. Further, the tip portion of the outer peripheral wall of the discharge cap is brought close to or in contact with the annular wall in the direction from the other end toward one end, and the tube is being attached while the discharge cap is being attached as in the conventional case. Since the container and the discharge cap are not strongly pressed in the circumferential direction, the workability when attaching the discharge cap is not impaired.

An embodiment of a tube container according to the present invention is shown, (a) is a plan view and (b) is a half cross-sectional view. It is a half sectional view of the discharge container provided with the tube container shown in FIG. 1. It is explanatory drawing which showed the flow of a water drop in an inverted posture.

Hereinafter, one embodiment of the tube container (tube container 1) and one embodiment of the discharge container (discharge container 5) according to the present invention will be described with reference to the drawings. In the present specification and the like, the vertical direction is a direction along the axis O of the illustrated mouth portion 1c. The radial direction is a direction orthogonal to the axis O in a plane perpendicular to the axis O, and the circumferential direction is a direction to orbit around the axis O in this plane. FIG. 2 shows a state in which the tube container 1 is in an upright posture, and FIG. 3 shows a state in which the tube container 1 is in an inverted posture.

As shown in FIG. 1 (b), the tube container 1 includes a body portion 1a, a shoulder portion 1b, and a mouth portion 1c.

The body portion 1a is formed in a tubular shape by a single material or by a plurality of laminated materials. One end portion (not shown in FIG. 1B) located below the body portion 1a is sealed, and a storage space S in which the contents are housed is formed inside the body portion 1a. The outer diameter of the body portion 1a of the present embodiment is about φ45 mm.

The shoulder portion 1b and the mouth portion 1c of the present embodiment are formed by, for example, compression molding or injection molding, and are configured by a head 2 which is fixed to the other end of the body portion 1a by welding or the like. As shown in FIG. 1 (b), the head 2 is inclined with the annular wall 2a and the inclined wall 2b extending from the upper end of the annular wall 2a (inclining upward as it approaches the axis O). It is provided with a cylindrical wall 2c extending upward from the inner end of the wall 2b. Here, the annular wall 2a and the inclined wall 2b are portions constituting the shoulder portion 1b (including a part of the body portion 1a), and the cylindrical wall 2c is a portion constituting the mouth portion 1c.

On the outer peripheral surface of the cylindrical wall 2c, a male screw portion 2d for mounting the discharge cap 3 described later is provided. Further, at the lower end of the cylindrical wall 2c (connecting portion with the inclined wall 2b), as shown in FIG. 1A, a large protrusion 2e and a small protrusion 2f that prevent the rotation of the mounted discharge cap 3 are provided in the circumferential direction. It is provided at intervals.

On the upper surface of the inclined wall 2b, an annular wall 2g extending in the circumferential direction is provided on the radial outer side of the large protrusion 2e and the small protrusion 2f. As shown in the partially enlarged view of FIG. 1B, the annular wall 2g of the present embodiment has a substantially triangular cross-sectional shape, and the amount of protrusion from the upper surface of the inclined wall 2b (the inclined wall 2b). The height from the upper surface to the apex of the annular wall 2 g) is about 1.5 mm.

In the present embodiment, the outer peripheral surface 2h of the annular wall 2g extends slightly inclined (inclined by about 5 to 10 °) toward the axis O as it goes upward. The outer peripheral surface 2h may extend substantially parallel to the axis O, or may extend at an angle opposite to that of the embodiment.

The inner peripheral surface 2j of the annular wall 2g is formed as an inclined surface that is inclined downward and extends as it approaches the axis O. As will be described later, the inclination angle of the inner peripheral surface 2j is such that the tip portion of the outer peripheral wall 3g approaches or abuts in the vertical direction with respect to the inner peripheral surface 2j (the tip portion of the outer peripheral wall 3g is in contact with the inner peripheral surface 2j). It is set to 45 ° or less, which is larger than 0 ° in the horizontal direction (so that it is closer or abuts in the vertical direction in preference to proximity or contact in the circumferential direction), but it is preferably larger than 0 ° and 30 ° or less. , More preferably greater than 0 ° and less than 15 °. The inner peripheral surface 2j of the present embodiment extends at an angle of about 10 ° with respect to the horizontal direction.

The amount of protrusion of the annular wall 2g and the angles of the outer peripheral surface 2h and the inner peripheral surface 2j in the present embodiment are merely examples and can be appropriately changed.

As shown in FIG. 2, the tube container 1 described above includes a discharge cap 3 and a lid 4, and is configured as a discharge container 5.

The discharge cap 3 includes a top wall 3a that covers above the cylindrical wall 2c constituting the mouth portion 1c. A discharge port 3b penetrating the top wall 3a is provided in the central portion of the top wall 3a, and a cylindrical discharge tube 3c rising from the top wall 3a is provided around the discharge port 3b.

On the lower surface of the top wall 3a, a seal cylinder 3d that is in close contact with the inner peripheral surface of the upper end portion of the cylindrical wall 2c and a tubular inner peripheral wall 3e that surrounds the cylindrical wall 2c are provided. On the inner peripheral surface of the inner peripheral wall 3e, a female threaded portion 3f suitable for the male threaded portion 2d is provided. A cylindrical outer peripheral wall 3g extending downward is provided on the outer edge portion of the top wall 3a. A plate-shaped anti-rotation rib 3h is provided between the inner peripheral wall 3e and the outer peripheral wall 3g.

The lid 4 shown by a virtual line in FIG. 2 has a covered cylinder shape, and is connected to the discharge cap 3 so as to be openable and closable by a hinge (not shown). Note that FIG. 2 shows a closed state in which the discharge port 3b is covered with the lid body 4. Further, as shown in the figure, the top wall 4a of the lid 4 is flat.

When attaching such a discharge cap 3 to the tube container 1, the discharge cap 3 is rotated with respect to the tube container 1 to screw the male screw portion 2d and the female screw portion 3f. In the present embodiment, when the discharge cap 3 is rotated to the end, the detent rib 3h gets over the small protrusion 2f and is sandwiched between the large protrusion 2e and the small protrusion 2f. Therefore, it is possible to prevent a problem that the discharge cap 3 attached to the tube container 1 inadvertently rotates and comes off.

When the discharge cap 3 is rotated to the end and attached to the tube container 1, the tip of the outer peripheral wall 3g is vertically close to the inner peripheral surface 2j of the annular wall 2g as shown in the partially enlarged view of FIG. is doing. That is, unlike the conventional case, the tube container and the discharge cap are not strongly pressed in the circumferential direction during the mounting of the discharge cap, and the workability when mounting the discharge cap is not impaired. In this state, the tip end portion of the outer peripheral wall 3g may be brought into contact with the inner peripheral surface 2j.

Since the top wall 4a of the discharge container 5 having such a form is flat, the tube container 1 can be stored in a bathroom or the like in a tilted posture as shown in FIG. When water droplets are attached to the outer surface of the tube container 1 in this state, the water droplets flow downward along the outer surface of the tube container 1 as shown by the arrow shown in the partially enlarged view of FIG. On the other hand, the inner peripheral surface 2j of the annular wall 2g is tilted upward as it approaches the axis O in a state where the tube container 1 is in a tilted posture. Therefore, since the flowing water droplets cannot cross the inner peripheral surface 2j and fall as they are, it is possible to effectively prevent the intrusion of water into the inside of the discharge cap 3. Here, when the tip end portion of the outer peripheral wall 3g is brought into contact with the inner peripheral surface 2j, it is possible to more reliably prevent water from entering the inside of the discharge cap 3.

Although one embodiment of the present invention has been described above, the present invention is not limited to such a specific embodiment, and unless otherwise specified in the above description, the gist of the present invention described in the claims. Various modifications and changes are possible within the range of. Moreover, the effect in the above-described embodiment is merely an example of the effect resulting from the present invention, and does not mean that the effect according to the present invention is limited to the above-mentioned effect.

For example, in the present embodiment, the discharge cap 3 is configured to be attached to the tube container 1 by screwing the male screw portion 2d and the female screw portion 3f, but the tube container 1 is provided with an outward protrusion and the discharge cap 3 is provided with an outward protrusion. An inward projection may be provided to engage the two. Further, the lid 4 is not limited to the one connected to the discharge cap 3 by a hinge, and may be separated from the discharge cap 3 and attached with a screw or the like. Further, the present invention is not limited to the tube container 1 described above in which the head 2 is fixed to the other end of the body portion 1a, and the body portion 1a, the shoulder portion 1b, and the mouth portion 1c are integrated by blow molding or the like. It may be formed as a target.

1: Tube container 1a: Body 1b: Shoulder 1c: Mouth 2: Head 2a: Circular wall 2b: Inclined wall 2c: Cylindrical wall 2d: Male thread 2e: Large protrusion 2f: Small protrusion 2g: Circular wall 2h: Outer peripheral surface 2j: Inner peripheral surface 3: Discharge cap 3a: Top wall 3b: Discharge port 3c: Discharge cylinder 3d: Seal cylinder 3e: Inner peripheral wall 3f: Female threaded portion 3g: Outer peripheral wall 3h: Anti-rotation rib 4: Lid body 4a: Top wall 5: Discharge container O: Axis line S: Containment space

Claims (2)

A tube container having a body portion in which one end is sealed and accommodating the contents inside, a shoulder portion provided in the other end portion of the body portion, and a mouth portion provided in the shoulder portion to which a discharge cap can be attached. And
The shoulder portion extends in a direction that orbits the axis of the mouth portion, and the tip end portion of the outer peripheral wall of the discharge cap attached to the mouth portion is oriented from the other end portion toward the one end portion. Has an annular wall in close proximity or in contact with
The inner peripheral surface of the annular wall is a tube container that is an inclined surface that inclines in a direction from the other end to the one end as it approaches the axis. A tube container having a body portion in which one end is sealed and accommodating the contents inside, a shoulder portion provided in the other end portion of the body portion, and a mouth portion provided in the shoulder portion.
A discharge cap equipped with a discharge port for discharging the contents and attached to the port portion,
A discharge container including a lid that covers the discharge port and is attached to the discharge cap to maintain the tube container in an inverted posture.
The shoulder portion extends in a direction that orbits the axis of the mouth portion, and the tip end portion of the outer peripheral wall of the discharge cap attached to the mouth portion is oriented from the other end portion toward the one end portion. Has an annular wall in close proximity or in contact with
The inner peripheral surface of the annular wall is a discharge container that is an inclined surface that inclines in a direction from the other end to the one end as it approaches the axis.

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