JP6372846B2 - Inner stopper and swing container with inner stopper - Google Patents

Description

  The present invention relates to an inner stopper and a swing container with an inner stopper.

  It is known that an inner plug having a plug cylinder that opens a plug hole upward is fitted to the mouth and neck of a cosmetic container, and the content liquid is taken out by a swing-out operation (see paragraph 0002 of Patent Document 1). .

JP-A-9-309557

  In the case of Patent Document 1, for example, when trying to shake out the content liquid by shaking the container upside down toward the palm of the hand, the content liquid may not be received well and the content liquid may be scattered. Moreover, the plug hole of the plug cylinder is exposed, and the hygiene of the plug hole cannot be maintained if a palm hits during the swinging operation. Containers such as lotion are often glass bottles and cannot be pushed with fingers, so they can be swung out to discharge the liquid. However, when used by elderly people, the containers are heavy and burden on the arms that hold them. Is big.

A first object of the present invention is to provide an inner stopper and an outlet container with an inner stopper capable of avoiding liquid splashing and touching of a stopper hole by the swinging operation.
The second object of the present invention is to provide an inner stopper and an outlet container with an inner stopper that are easy to use.
A third object of the present invention is to provide an inner stopper and an outlet container with an inner stopper with a small amount of liquid adhering to the inner surface when the shaking operation is performed.

The first means includes a plug part 36 for fitting into the mouth and neck part of the container body 2,
An enclosure wall portion 26 is connected to the upper end of the plug barrel portion 36 so as to close the upper surface of the plug barrel portion 36, has a plug board portion 22 having a plug hole 24 opened at the center thereof, and surrounds the plug hole 24. A closing portion 20 erected from the upper surface of the stopper panel 22;
An inner plug comprising:
The closing portion 20 is provided so that the plug board portion outside the plug hole 24 closes the upper end surface portion of the plug cylinder portion 36 excluding the portion where the plug hole is opened. The protruding portion 28 is formed so as to be continuous with the surrounding wall portion 26, and the inner surface of the blocking portion extending from the hole edge of the plug hole 24 to the upper end surface 26 a of the surrounding wall portion 26 is formed in a substantially bowl-shaped concave shape. As the curved surface 30, the plug hole 24 is formed at the lowest position of the concave curved surface 30.

  In this means, as shown in FIG. 1, a configuration is proposed in which the surrounding wall portion surrounds the plug hole 24 of the plug board portion 22 in the closing portion 20 of the inner plug 10. Thereby, it can avoid that a hand touches the plug hole 24. Moreover, since the inner surface of the blocking portion 20 is a substantially bowl-shaped concave curved surface 30, the scattered liquid is difficult to adhere. In addition, even if it says a concave curved surface, all the parts of the surface do not need to bend.

The second means includes the first means, and at least the outer half part of the concave curved surface 30 has a circular arc shape that curves downward from the plug hole 24 side to the vicinity of the upper end surface 26a of the surrounding wall part 26. is there.

  In this means, as shown in FIG. 3 or FIG. 6, at least the outer half of the concave curved surface has a circular arc cross section. Thereby, as shown in FIG. 8B as a reference example, the scattered liquid is less likely to adhere as compared to the case where there is a vertical surface outside the closed portion.

The third means includes the second means, and the concave curved surface 30 is bent in a circular arc shape in a cross section outward from the hole edge of the plug hole 24 to the inner edge of the upper end face 26a of the surrounding wall part 26. doing.

  In this means, as shown in FIG. 3, a shape is proposed in which the concave curved surface 30 bends downward and outward from the hole edge of the plug hole 24 to the inner edge of the upper end surface 26 a of the surrounding wall portion 26. In this configuration, the radius of curvature can be increased. From the experimental results, this form is most excellent in that the liquid hardly adheres.

  The fourth means includes the second means or the third means, and the radius of curvature of the portion of the concave curved surface 30 having an arcuate cross section is in the range of 4 mm to 8 mm.

  In this means, a specific example of a suitable numerical value of the radius of curvature is proposed.

  The fifth means is a swing-out container with an inner stopper, wherein the inner stopper 10 of any one of the first to fourth means is attached to the mouth / neck portion 6 of the container body 2.

  This means proposes that the inner stopper of the configuration described in each of the above means is applied to the dispensing container. As a result, the swinging operation can be performed by touching the inner plug to the palm without touching the plug hole.

According to the invention relating to the first means and the fifth means, since the surrounding wall portion 26 surrounding the plug hole 24 is provided, it is possible to prevent the plug hole 24 from touching the hand, and to the front end surface of the surrounding wall portion. By applying the palm of the hand, the liquid poured out from the plug hole 24 can be prevented from scattering, and the inner surface of the closing portion 20 is formed as a substantially bowl-shaped concave curved surface 30 so that the liquid is difficult to adhere.
According to the second aspect of the invention, at least the outer half of the concave curved surface 30 has a circular arc shape that curves downward and outward from the plug hole 24 side to the vicinity of the upper end surface 26a of the surrounding wall part 26. As compared with the case where the liquid hits the vertical wall portion surrounding the liquid, the momentum of the liquid is not reduced and the liquid is less likely to adhere.
According to the third aspect of the invention, the concave curved surface 30 is bent downward and outward as a whole from the hole edge of the plug hole 24 to the inner edge of the upper end surface 26a of the surrounding wall portion 26, so that the radius of curvature is increased. be able to.
According to the fourth aspect of the invention, since the radius of curvature of the arcuate section of the concave curved surface 30 is in the range of 4 mm to 8 mm, the amount of liquid adhesion can be reduced.

It is a partial cross section front view of the shake-out container with an inner stopper concerning 1st Embodiment of this invention. It is a top view of the inside stopper of the shake-out container of FIG. It is a longitudinal cross-sectional view of the inner stopper of FIG. It is a longitudinal cross-sectional view of the modification of the inner stopper of FIG. It is explanatory drawing of an effect | action of the swinging container with an inside stopper of FIG. It is a longitudinal cross-sectional view of the inner stopper which concerns on 2nd Embodiment of this invention. It is explanatory drawing regarding the experiment of the shaker container with an inner stopper which concerns on this invention. It is sectional drawing of the reference example of this invention, The figure (A) is an aspect which made the inner surface of the obstruction | occlusion part the taper-shaped surface, The figure (B) is a moderate circle | round | yen near the corner | angular part of the inner surface of an obstruction | occlusion part. The form in which the arc-shaped saddle curved surface is formed, and FIG. 3C shows the form in which a small arc-shaped saddle curved surface is formed near the corner of the inner surface of the closing part. It is explanatory drawing of the aspect of FIG. 8 (A) and FIG. 8 (B).

  FIG. 1 to FIG. 5 show a swing-out container with an inner stopper according to the first embodiment of the present invention. This container includes a container body 2, an inner stopper 10, and a cap 40. A container main body is comprised with a synthetic resin, earthenware, a metal, glass, etc., and other members can be formed with a synthetic resin.

  The container body 2 includes a trunk portion 4 and a mouth and neck portion 6 that stands up from the upper end of the trunk portion 4 via a shoulder portion.

  The inner plug 10 includes a mounting part 12, a blocking part 20, and a plug cylinder part 36.

  The mounting portion 12 projects an inward flange 16 from the upper end of the mounting cylinder portion 14 that can be fitted to the outer surface of the mouth / neck portion 6 of the container body 2. A retaining rib 15 is formed on the inner surface of the mounting cylinder portion 14.

  The closing portion 20 includes a plug board portion 22 that is continuous with the inward flange 16 and has a plug hole 24 in the center, and a surrounding wall portion 26 that stands up from the outer periphery of the plug board portion 22. The portion 22 is raised as it is away from the hole edge of the plug hole 24, so that the raised portion 28 is continuous with the surrounding wall portion 26. The raised portion 28 forms the inner surface of the closing portion 20.

The inner surface of the closing portion 20 is formed in a substantially bowl-shaped concave curved surface 30 from the hole edge of the plug hole 24 to the upper end surface 26 a of the surrounding wall portion 26. Connecting portions of the upper portion of the concave surface 30 and the upper end surface 26 a is formed in a convex curved surface. The plug hole 24 is located at the lowest place on the concave curved surface 30. In the present embodiment, the concave curved surface 30 is curved in a cross-sectional arc shape extending downward and outward from the hole edge of the plug hole 24 to the inner edge of the upper end surface 26 a of the surrounding wall portion 26.

  In the present embodiment, the radius of curvature R of the concave curved surface 30 is larger than the height H from the plug hole 24 to the upper end of the surrounding wall portion 26.

  The said plug cylinder part 36 is connected with the outer peripheral part of the plug board part 22, and is formed so that it can be liquid-tightly fitted to the inner surface of the mouth neck part 6.

  The cap 40 has a cap peripheral wall portion 44 suspended from the outer peripheral portion of the top wall portion 42 fitted (screwed in the illustrated example) to the outer surface of the mouth-and-neck portion 6, and a locking projection 48 depending from the top wall portion 42. Is fitted in the stopper hole 24 in a liquid-tight manner. In the illustrated example, a downward first locking step portion 46 is formed on the inner surface of the cap peripheral wall portion 44 in the vertical direction, and between the first locking step portion 46 and the upper end of the mouth-and-neck portion 6 is formed. The orientation flange 16 can be clamped.

  FIG. 4 is a modified example of the present embodiment, and a lightening portion 23 extending from the stopper board portion 22 to the raised portion 28 is provided inside the stopper tube portion 36.

  In the above configuration, the cap 40 can be removed from the neck 6, the container body 2 can be shaken upside down, and the liquid can be spouted from the plug hole 24. At that time, the surrounding wall portion 26 of the closing portion 20 of the inner plug 10 may be shaken out against the palm of the hand, thereby preventing the contents from being scattered. Further, the hand applied to the inner plug 10 can assist the vertical movement of the arm having the swing container, and the burden on one arm can be reduced. Of course, even if it is swung without touching the inner plug, the same discharge as the conventional product is possible. In the above operation, since the surrounding wall portion 26 surrounds the plug hole 24, the plug hole 24 can be kept clean.

  Further, the inner surface of the closing portion 20 is a concave curved surface 30 shown in FIG. 3, and the upper portion thereof is inclined upward or outward in a straight or convex curved shape, and the content liquid L is discharged during the above-mentioned swinging operation. Since it hits the concave curved surface 30 shallowly (see FIG. 5), the adhesion amount of the liquid on the concave curved surface 30 can be reduced. On the other hand, as shown in FIGS. 8B and 8C which are reference examples, the inner surface of the upper portion of the closing portion 20 is made vertical, and the base end portion which is a connection portion between the vertical portion and the plug board portion 22 is used. Compared with the case where the radius of curvature is reduced, the liquid hits the vertical portion at a deep angle (see FIG. 9B) and the momentum is reduced, so that the amount of adhesion increases. Further, when the inner surface of the closing portion 20 is not formed as a concave curved surface and is tapered as shown in FIG. This is presumed to be because the contribution of the adhesive force of the liquid to the inner surface acts strongly when the scattered liquid contacts the inner surface of the closed portion at a shallow angle (see FIG. 9A).

  Other embodiments of the present invention will be described below. In the description, the description of the same structure as that of the first embodiment is omitted.

  FIG. 6 shows an inner plug 10 according to the second embodiment of the present invention. In the present embodiment, the concave curved surface 30 of the closing portion 20 is formed with an annular flat surface portion 30a continuous with the hole edge of the plug hole 24, and a first flange curved surface portion 30b occupying the majority of the concave curved surface 30 and bulging downward. The second upper curved surface portion 30c is continuous with the upper end surface 26a of the surrounding wall portion 26 and swells upward and inward. The first saddle curved surface portion 30b has a circular arc cross section. The radius of curvature of the first curved surface portion 30b is smaller than the height H from the plug hole 24 to the upper end of the surrounding wall portion 26, and is larger than half of the height.

  Hereinafter, an experiment conducted on the swing container with an inner stopper according to the present invention will be described. The purpose of the experiment is to investigate the amount of liquid adhering to the concave curved surface when the swinging operation is performed by changing the shape condition of the inner plug (the radius of curvature of the concave curved surface) and the usage conditions.

  Regarding the inner plug shape conditions, the inner radius of the closed portion shown in FIG. 3 is 7.5 mm (test body 4), and the first heel curved surface portion 30b shown in FIG. 6 is 4 mm in radius of curvature (test). In addition to the body 3), as a comparative example, the base end shown in FIG. 8B has a radius of curvature of 2 mm (test body 2), and the base end shown in FIG. 2 mm (test body 1) and one having a tapered inner surface of the closing portion shown in FIG. 8A (test body 5) were used. The height from the plug hole 24 to the upper end of the surrounding wall is about 4 mm for the test bodies 1 and 2 and about 5 mm for the test bodies 3 to 5.

  As usage conditions, as shown in FIG. 7, when the tilt angle is 45 ° and 90 °, when the swing speed is fast and slow, when discharging while applying to the palm as a discharging method, and when discharging without applying to the palm It was adopted.

  Combining these conditions, a swing-out operation was performed, and the weight of water droplets attached near the inner plug was measured. The measurement value was calculated as an average of 10 measurements for each of the various combinations. The results are shown in Table 1 below.

  As a result, the test specimen 3 of the present application (second embodiment of the present application) and the test specimen 4 (first embodiment of the present application) have less water droplet adhesion than the other test specimens, and the test specimen 4 is particularly optimal. understood. Accordingly, it is considered that the range of the radius of curvature is good from 4 mm to 8 mm.

2 ... Container body 4 ... Body 6 ... Mouth and neck
DESCRIPTION OF SYMBOLS 10 ... Inner plug 12 ... Mounting part 14 ... Mounting cylinder part 15 ... Removal prevention rib 16 ... Inward flange 20 ... Closure part 22 ... Plug board part 23 ... Meat removal part 24 ... Plug hole 26 ... Enclosure part 26a ... Upper end part 27 ... Projection 28 ... Raised portion 30 ... Concave surface 30a ... Flat surface portion 30b ... First heel curved surface portion 30c ... Second heel curved surface portion 36 ... Plug tube portion
40 ... Cap 42 ... Top wall 44 ... Cap peripheral wall
46 ... 1st latching step part 48 ... Locking protrusion
C ... Corner F ... Inner surface O ... Center of curvature R ... Radius of curvature H ... Height of upper edge of surrounding wall

Claims (5)

A plug tube (36) for fitting into the mouth and neck of the container body (2);
The plug cylinder portion (36) is connected to the upper end of the plug cylinder portion (36) so as to close the upper surface, and has a plug board portion (22) having a plug hole (24) opened at the center, A closing part (20) formed by standing up the surrounding wall part (26) surrounding the hole (24) from the upper surface of the plug board part (22);
An inner plug comprising:
The closing part (20) is provided so that the plug board part outside the plug hole (24) closes the upper end surface part of the plug cylinder part (36) excluding the part where the plug hole is opened. The portion is raised as it moves away from the plug hole (24), and this raised portion (28) is formed so as to be continuous with the surrounding wall portion (26), and from the hole edge of the plug hole (24) to the surrounding wall portion (26). The inner surface of the closed portion reaching the upper end surface (26a) is formed as a substantially bowl-shaped concave curved surface (30) so that the plug hole (24) is positioned at the lowest position of the concave curved surface (30). Features an internal stopper.   At least the outer half portion of the concave curved surface (30) has a circular arc shape that curves downward and outward from the plug hole (24) side to the vicinity of the upper end surface (26a) of the surrounding wall portion (26). The inner plug according to claim 1.   The concave curved surface (30) is bent in a circular arc shape in a downward and outward direction from the hole edge of the plug hole (24) to the inner edge of the upper end surface (26a) of the surrounding wall part (26). The inner plug according to claim 2.   The inside plug according to claim 2 or 3, characterized in that the radius of curvature of the arcuate section of the concave curved surface (30) is in the range of 4 mm to 8 mm. A swinging-out container with an inner stopper, wherein the inner stopper (10) according to any one of claims 1 to 4 is attached to the mouth and neck (6) of the container body (2).