JPH07315412A - Delivery port part of delivery container - Google Patents

Abstract

PURPOSE:To deliver even a small amount of liquid lightly and finely with high accuracy by a method wherein a plurality of valve parts consisting of a rigid receiving body and an elastic body abutting on the face edge part of the receiving body and forming a gap by a delivery pressure of liquid are provided in a delivery port part of a container body. CONSTITUTION:A plurality of valve parts 6, 9 consisting of a rigid receiving body 11 and an elastic body 12 abutting on the face edge part of the receiving body 11, which normally abut to each other in a belt form along the direction of the face edge part, and forming a gap by a delivery pressure of liquid are provided in a delivery port part 2 of a container body 1. A tapered recessed part 23 serving as a liquid delivery path is formed in the elastic body 12. The top part of the recessed part 23 takes precedence in forming a gap by a delivery pressure of liquid. Therefore, for example, when the head of a cover body 13 is pressed while the container body 1 is gripped by one hand, a nozzle body 10 is displaced downward. At this time, the pressure of liquid 4 held in a cavity 15 is increased, and a gap is formed in the recessed part 23 of the elastic body 12 to permit the liquid 4 to pass through. In this manner, even a small amount of liquid can be delivered lightly and finely with high accuracy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge port portion of a discharge container in which an external force is applied to increase the pressure of a liquid to be contained and the liquid is discharged by this pressure. Here, examples of the liquid to be ejected include cosmetics such as foundation, lip color and lip cream, adhesives, toothpaste,
Examples include paints, sumi ink, and handwriting correction liquid. It is preferable to use a liquid of relatively high viscosity that is discharged in a small amount, for example, by wiping with a fingertip.

[0002]

2. Description of the Related Art As a discharge container in which an external force is applied to increase the pressure of a contained liquid and the liquid is discharged by this pressure, there is a structure using a valve portion for opening and closing a passage of the liquid. A valve body such as a ball or rod is urged toward the valve seat by using elastic force or the valve body's own weight.
One that is found in manually pressurized spray containers and that does not use a valve structure, for example, one that is generally used as a container for neutral detergent, toothpaste, etc., and that presses a deformable storage chamber from the outside Compared with, it has an advantage in preventing deterioration, drying and leakage of the liquid over time.

[0003]

Since the liquid existing on the discharge destination side of the valve portion cannot be prevented from being deteriorated, the valve portion should be provided as close to the discharge end portion as possible, and hence to the discharge port portion. Is preferred. However, a complicated structure cannot be added to the discharge port. Of course there are price issues,
In the first place, the ejection port portion is formed on the premise of the ejection amount and ejection shape of the liquid to be ejected. For example, discharge so as not to drip from the discharge end,
Even if the ball is used for the valve body, it is too complicated to use a large amount of liquid at one time, such as wiping with a fingertip. .

In this respect, the present inventor has considered the adoption of the valve portion by elastically abutting the hard receiver and the elastic body.
If it is compared to the lips (the receiving body and the elastic body are compared to one of the upper lip and the lower lip, respectively), basically the width of the entire lip and the opening amount between the upper lip and the lower lip are set to be a certain amount. However, the desired amount of ejection can be satisfied. In addition, the discharge amount can be basically adjusted so that the discharge amount can be reduced by narrowing the open portion even with wide lips.

However, when actually manufactured, it is difficult to eject as desired. Considering the airtightness during non-ejection, it is necessary to apply at least some force to the elastic contact between the receiving body and the elastic body. However, if they are brought into contact with each other with too much force, it becomes difficult to form a gap against this force. Therefore, the contact area is assumed to be narrow. The belt is formed in a strip shape (the length of the strip corresponds to the width of the lip), and the force applied to the entire contact area is reduced without reducing the pressure. This certainly reduces the force required to form the gap to some extent. However, the opening start part is still undefined. In other words, there are those that are discharged from the band end (corresponding to the side of the lips), those that are discharged in a gourd-like cross section, and the like. Then, try to bring the both ends of the band into contact with each other more strongly than the central part. As a result, the discharge is surely performed from the central portion of the band. However, even then, the variation of the contact force in the central part,
Therefore, it is not possible to sufficiently suppress the variation in the force for forming the gap. It is not even mass-produced.

[0006]

In order not to increase the force for forming the gap too much, it is preferable to make the contact area into a band shape. To that end, the receiving body is provided with a surface edge portion (which may be considered as a rib as described later),
An elastic body may be brought into contact with this surface edge portion. Then, in order to determine the opening start portion while suppressing the variation of the force for forming the gap, the liquid discharge passage is tapered in a part of this band-shaped portion to form the gap preferential forming portion. Here, this liquid discharge passage is provided as a recess on the elastic body side. This is because facilitating the deformation of the elastic body also contributes to suppressing the variation in the force for forming the gap. That is, the present invention relates to a discharge port portion of a discharge container in which an external force is applied to increase the pressure of a liquid to be contained and the liquid is discharged by this pressure, and a hard receiver and a surface edge of the receiver. The elastic member that abuts against the portion always has a valve portion that abuts in a strip shape along the direction of the surface edge portion and forms a gap by the discharge pressure of the liquid. There is a tapered concave portion that serves as a liquid discharge passage, and the tip of this concave portion is located up to a part of the strip-shaped contact area and serves as a preferential formation portion of a gap due to the liquid discharge pressure. The discharge port of the discharge container is the first gist, and the pressure of the liquid to be contained is increased by applying an external force, and the liquid is discharged by this pressure. The body and the elastic body that abuts against the edge of the surface of the receiving body It has a valve portion that abuts in a strip shape along the direction of the edge portion and forms a gap by the discharge pressure of the liquid, and the elastic body is formed of a transparent material. The second gist is a discharge port portion of the discharge container which is arranged at a position visible through the discharge container.

[0007]

DETAILED DESCRIPTION An example will be described with reference to the accompanying drawings. The container body 1 has a mouth member 2 fixed to the upper end opening. The mouth member 2 fixes the soft bag body 3 to the outer wall of the outer tubular portion so as to be located inside the container body 1. This fixing does not leak the liquid 4 contained in the bag body 3. When the liquid 4 is discharged, the bag body 3 contracts accordingly.

A piston member 5 is provided on the inner cylindrical portion of the mouth member 2.
Is fixed, and the first valve 6 is arranged on the upper part. The first valve 6 is made of, for example, an easily deformable soft plate-like body having a “C” -shaped notch, and can be opened only in the upper part of the drawing. That is, even if the cylinder member 7 arranged so as to slide in a liquid-tight manner with respect to the piston member 5 is pressed and displaced downward in the drawing, the liquid 4 existing above the first valve 6 does not move the first valve 6. It does not move to the side of the bag body 3 through the cylinder-member 7
Is moved upward, the first valve 6 is opened and the liquid in the bag body 3 passes through. Here, the spring 8 urges the cylinder member 7 upward in the drawing.

A second valve 9 is arranged inside the cylinder member 7. The second valve 9 can also be opened only in the upper part of the drawing, so that during the above-described downward displacement of the cylinder member 7 in the drawing, the liquid 4 present above the first valve 6 is passed through. The nozzle body 10 is fixed on the cylinder member 7.

The nozzle body 10 is composed of three members. Hereinafter, although described in order, reference numerals 11 and 12 respectively denote the receiving body and the elastic body in this example. Reference numeral 13 indicates a lid.

The receiver is made of, for example, a hard material such as polypropylene, polyacetal, ABS resin, aluminum, stainless steel, or brass that is not expected to exhibit elasticity, and the receiver 11 shown in FIG. (See) is the discharge passage 1
4 has an inner hole 15 that serves as a reservoir for the liquid 4 that has passed through the second valve 9 and a groove 17 that communicates with an opening 16 that is the outlet of the inner hole 15. An upper portion of the groove 17 is a recessed portion 19 having a peripheral wall 18 (a part of the peripheral wall 18 extends to the outer edge portion of the upper surface of the receiving body 11).
A rib 20 is provided on the bottom surface of the. The rib 20 is for preventing liquid leakage from an unnecessary portion, and if necessary,
It may be formed in an appropriate shape in a portion where permanent sealing with the elastic body 12 is required. Reference numeral 21 indicates a protrusion for fitting with the lid 13.

The elastic body is, for example, silicone rubber or SB.
The elastic body 12 (see FIGS. 3 to 5) is made of R, butyl rubber, or the like that can utilize elastic deformation.
1 has a storage portion 22 in the concave portion 19 on the bottom surface side. That is, the periphery of the storage portion 22 is recessed so as to fit with the peripheral wall of the recessed portion 19 of the receiving body 11. An isosceles triangular concave portion 23 is provided in a part of the storage portion 22. A portion near the apex as an isosceles triangle cuts out a part of the slope 24 of the storage portion 22. As will be described later, this concave portion 23 is a specific example of the “tapered concave portion” in the present invention, and in FIG. 4, the dotted line drawn on the slope 24 makes contact with the receiving body 11 to form the valve portion. By the way. Here, as the material of the elastic body, including the above-mentioned material,
Transparent or translucent styrene rubber, SE
BS, chloroprene rubber, butadiene / acrylonitrile rubber, etc. (generally called rubber is transparent as long as it does not contain a coloring material such as a pigment), and by using a transparent material, it will be described later. As described above, the quality of the product in the manufacturing process can be easily determined.

The alternate long and short dash line in FIG. 4 indicates the contact portion of the receiving body 11 with the rib 20. Further, reference numeral 25
Indicates a through hole for fitting the receiving body 11 and the lid body 13, and 26 indicates a protrusion (in Fig. 5, a horizontally long "E") for stabilizing the shape of the molded product in the case of injection molding. It looks like a letter). Further, the dot portion indicated by reference numeral 27 in FIG. 5 indicates that the pressing force received from the lid body 13 (the holding force by the fitting between the receiving body 11 and the lid body 13) is stronger than the surrounding area. As described above, this is a specific example for surely ejecting from the central part of the band by abutting both ends of the band more strongly than the central part.
However, the means for determining the opening start portion of the valve portion is shown because the combination is more preferable.

The lid 13 (see FIGS. 6 and 7) has an inner surface 28.
Has a fitting portion 29 with which the projection 21 of the receiving body 11 fits. Inner surface 2
Reference numeral 8 denotes a concave portion having a gentle roundness as a whole, and the portion marked with dots in FIG. 7 is a portion that applies a strong contact force to the elastic body 12, and corresponds to the portion 27 marked with dots in FIG. However, the notch 30 prevents the elastic deformation of the elastic body 12 from being exerted on the inner side. The lid 13 can be omitted if the receiving body 11 and the elastic body 12 can be sufficiently fixed.

Now, the structure of the valve portion including the recess 23 of the elastic body 12 will be described. As shown in FIG. 8 in which the portion A of FIG. 1 is enlarged, the sloped surface 24 of the storage portion 22 of the elastic body 12 has a part of the edge portion of the recessed portion 19 of the receiving body 11 so as to seal the recessed portion 23 inside. Are in contact with each other. It is a portion to which reference numeral 31 is attached, and this portion is a surface edge portion in the present example. By the way, the surface edge can be recognized as a rib. For example, as shown in the figure, the inner wall surface of the recessed portion 19 of the receiving body 11 is formed so that the inner wall surface of the elastic body 12 is more main than the surface of the peripheral wall 18 that forms the discharge port end portion 32 together with the elastic body 12 as a gap. Although it is in contact with the inclined surface 24, it can be considered that the contact is made with ribs having different shapes of the protruding wall surfaces on both sides. Further, depending on the shape of the receiving body 11, only the inner wall surface of the recessed portion 19 may be brought into contact with the elastic body 12 and the surface of the peripheral wall 18 may not be brought into contact at all. It can be considered that only abutting.

The inner wall surface of the recessed portion 19 of the receiving body 11 is brought into contact with the inclined surface 24 of the elastic body 12 so that the inner wall surface of the recessed portion 19 is more dominant than the surface of the peripheral wall 18, and is the strongest in the belt-shaped contact area. This is because it is more preferable that the abutting portion is not located at the center line portion of the band but is located at the discharge port end 32 side. Figure 9
It will be explained based on. FIG. 9 is an enlarged view of the apex portion of the recess 23 of the elastic body 12 as an isosceles triangle. In FIG. 4, what is simply shown as a dotted line is also drawn as a band 33 having a width to show that it is a contact area. The dot density in the band 33 is increased toward the right side of the drawing. It is shown that the right side of the drawing is a portion that strongly abuts the receiving body 11. Recess 23
It is preferable that the vertices of the isosceles triangle are located so as not to exceed the most strongly abutting portion. This is because the contact force at the bending angle is not impaired. At this time, even if the band width is the same, if the most strongly contacting part is located on the discharge port end 32 side, it can be located deeper in the band 33. That is, it becomes a more reliable preferential forming portion of the gap.

The liquid that has reached the recess 23 is in a discharge state as shown in FIGS. 13 and 14, depending on the degree of pressurization. That is, for example, if the head of the lid 13 is pressed while holding the container body 1 with one hand and the nozzle body 10 is displaced downward, the pressure of the liquid 4 accumulated in the inner hole 15 increases and the elastic body 12 Since the apex portion of the concave portion 23 as an isosceles triangle is easily deformed and the band width as the contact area is narrow, a gap is formed in the portion and the liquid passes through. The formation of this gap requires a fairly small force. Moreover, the ejection width changes depending on the force. The liquid may be ejected in such a small amount as to be wiped with a fingertip without dropping the liquid.

Although an example has been described above, various other methods are possible. For example, the nozzle body 10 that is displaced by pressing is not provided,
A discharge container of a type in which the deformable container body is directly pressed can be used. Further, for example, in the illustrated example, the receptacle 11 is located on the lower side and the elastic body 12 is located on the upper side in consideration of the ease of wiping the discharged liquid with a fingertip or the like, but the receptacle 11 is elastic on the upper side. It is also possible that the body 12 is located on the lower side. Further, for example, although the recess 23 has an isosceles triangular shape, it may be any shape such as a baseball home-base shape, a shell shape, or a rhombus shape. The position of the tip portion in the contact area (in terms of lips, whether it is the center of the face or the position biased to the left and right) is also appropriate. In addition, other techniques such as forming a silicone oil film on the surface of the elastic body 12 in order to enhance the airtightness of the valve portion at a desired stage can be appropriately used.

Next, a method of judging the quality of the above-mentioned product will be described. As shown in FIGS. 10 to 12, the elastic body 1
The color and width of the band portion 33 generated at the surface edge portion 31 between the two and the receiving body 11 greatly change depending on the degree of contact between the two members. The tint of the color and the width of the band 33 are different from those of the elastic body 12.
Is made of a transparent material, the lid 13
Since the front portion of the elastic body 12 is notched, it can be easily seen by visually observing from above the elastic body 12. By the way, Figure 1
0 indicates the best adhesion state, and the band 33 is 3
It is about one-third thinner and darker. Further, FIG. 11 shows a case where the close contact state is too weak (there is a risk that the liquid will be naturally discharged), and the band portion 33 is darkened and its width is wide. That is, the elastic body 12 is the receiving body 11
It has become more floating, and light has entered the gap. Conversely, FIG.
In No. 2, the contact state is too strong (there is a risk that the liquid will not be ejected), and the band portion 33 has the color of the elastic body 12 itself.

[0020]

As described above, the discharge port portion of the discharge container according to the present invention is always formed by a hard receiving body and an elastic body that abuts against the surface edge portion of the receiving body, and the direction of the surface edge portion is always present. Along with a valve portion that abuts in a strip shape to form a gap by the discharge pressure of the liquid, and the tip of the tapered concave portion of the elastic body is located up to a part of the strip-shaped contact area. Since it is a preferential formation part of the gap, even if the liquid is ejected in a small amount so as not to drop from the ejection port, it is light while suppressing variations during mass production. By force,
Moreover, the shape can be stabilized and the amount can be adjusted so that the discharge can be performed. Further, since the elastic body is made of a transparent material, the quality of the product can be easily judged.

[Brief description of drawings]

FIG. 1 is a vertical sectional view illustrating an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the receiver shown in FIG.

FIG. 3 is a vertical sectional view of the elastic body of FIG.

FIG. 4 is a bottom view of the elastic body of FIG.

5 is a top view of the elastic body of FIG. 1. FIG.

6 is a vertical cross-sectional view of the lid body of FIG.

7 is a bottom view of the lid body of FIG. 1. FIG.

FIG. 8 is an enlarged view of part A in FIG.

9 is an enlarged view of the tip of the recess of FIG.

FIG. 10 is an enlarged view showing the degree of close contact between the elastic body and the receiving body.

FIG. 11 is an enlarged view showing the degree of close contact between the elastic body and the receiving body.

FIG. 12 is an enlarged view showing the degree of close contact between the elastic body and the receiving body.

FIG. 13 is a top view illustrating an example of a liquid ejection state.

FIG. 14 is a front view illustrating an example of a liquid discharge state.

[Explanation of symbols]

 1 Container Main Body 2 Mouth Member 3 Bag Body 4 Liquid 5 Piston Member 6 First Valve 7 Cylinder-Member 8 Spring 9 Second Valve 10 Nozzle Part 11 Receptor 12 Elastic Body 13 Lid Body 14 Discharge Passage 15 Inner Hole 16 Open Hole 17 Groove 18 Circumferential wall 19 Recessed portion 20 Rib 21 Projection 22 Storage portion 23 Recessed portion 24 Slope of storage portion 25 Through hole 26 Projection portion 27 Recessed surface portion 28 Inner surface 29 Fitting portion 30 Cutout portion 31 Surface edge portion 32 Discharge port end portion 33 band

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B43M 11/00 A B65D 83/00

Claims (2)

[Claims] 1. A discharge port of a discharge container in which an external force is applied to increase the pressure of a liquid to be stored, and the liquid is discharged by the pressure, and a hard receiver and a surface edge portion of the receiver. The elastic body that abuts against the elastic body always has a valve portion that abuts in a strip shape along the direction of the surface edge portion and forms a gap by the discharge pressure of the liquid, provided that the elastic body is a liquid. Has a tapered concave portion that serves as a discharge passage, and the front end of this concave portion is located up to a part of the strip-shaped contact area and serves as a preferential formation portion of a gap due to the discharge pressure of the liquid. ,
Discharge port of the discharge container. 2. A discharge port of a discharge container in which an external force is applied to increase the pressure of a liquid to be stored, and the liquid is discharged by this pressure, the hard receiving member and a surface edge portion of the receiving member. The elastic body is always in contact with the surface edge portion in the form of a strip along the direction of the surface edge portion, and has a valve portion that forms a gap by the discharge pressure of the liquid. A discharge port part of a discharge container, which is formed of a certain material and is arranged at a position where the band-shaped part can be seen through an elastic body.