JP3707094B2 - Discharge container - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a liquid discharge container such as a cosmetic emulsion, hand cream, foundation, shampoo for shampoo, rinse, liquid toothpaste, mayonnaise, ketchup, glue, and paint.
[0002]
[Prior art]
The applicant of the present application has previously disclosed a Japanese Utility Model Application No. 7-31479 (1995) as a discharge container that discharges liquid in a liquid storage chamber from a discharge port through a valve mechanism including a valve seat and a plate-like valve body. The invention described in the application filed on Jan. 27, 2000: reference number 950105P1) was made. The gist of the invention is “in a discharge container that discharges liquid in a liquid storage chamber from a discharge port portion, and an elastic thin plate member is fixed to the discharge port portion so that the thin plate member is surrounded, and A discharge container characterized in that a relief space is formed above the thin plate member.
A head crown having a protrusion on the lower surface is positioned above the escape space, and the head crown fits the protrusion into a groove formed in the nozzle member. Leakage of liquid discharged onto the upper surface of the thin plate member due to the fitting of the head crown (for example, space portions X and Y formed on the rear and side surfaces of the thin plate member (see FIGS. 8 and 9)) Leakage).
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional technology , “the air does not enter the container body as well as the discharge port portion, the liquid can be prevented from drying, and it is also hygienic”. Although effective, there was still room for development. Depending on the dimensional variation of the molded product, liquid leakage to the space portions X and Y may occur. And this liquid leakage has a strong tendency to occur in the vicinity of the fitting portion on the side opposite to the discharge port, and the liquid may leak to the space portion X formed behind the thin plate member. . This is because, in the fitting near the discharge port, the protrusion of the crown and the groove are easily deformed to each other, and therefore, the rear part is in contact with the protrusion groove and the algae. Since they are connected to each other, it is difficult for each of them to be deformed. For this reason, a gap is formed, and the degree of adhesion is considered to be low.
[0004]
Here, when liquid leaks and accumulates in the space portions X and Y, eventually, the accumulated liquid is mixed with substances that have an adverse effect on humans such as various fungi, dust, and dust. Needless to say, when such substances such as bacillus are mixed in the liquid, it becomes an unsanitary liquid. Sometimes mold or discoloration occurs, resulting in a very unsanitary liquid. Such an unsanitary liquid is very unfavorable especially when it is cosmetics or edible. And, of course, the accumulated liquid is not used, but an adverse effect on the discharge port and the thin plate member is unavoidable.
[0005]
[Means for Solving the Problems]
The present invention is a discharge container that discharges liquid in a liquid storage chamber from a discharge port portion, and an elastic thin plate member is fixed to the discharge port portion so that the thin plate member is surrounded by the thin plate member. In the discharge container in which the escape space is formed above the plate-like member, a liquid flow passage that communicates the liquid storage chamber and the discharge port is provided in the discharge container, and the surrounding portion of the thin plate-like member is provided above the liquid flow passage forming a, to form a deformable Dajaku portion above the surrounding part, in its surrounding portion, and summarized in that fitted with head crown in a state where the Dajaku portion is deformed.
[0006]
[Action]
When the weak part of the go part bites into or deforms the crown, the close contact between the go part and the crown is increased, and the liquid is surely prevented from leaking into the space.
[0007]
【Example】
An example will be described with reference to the accompanying drawings. The container body 1 accommodates a soft bag 3 that forms a liquid chamber (liquid storage chamber) 2 therein. Although the inside of the container body 1 may be directly used as the liquid chamber 2, the use of the soft bag 3 is an easy means because it contracts according to the consumption of the liquid to be stored and can prevent the outside air from being mixed. The soft bag 3 is attached to the lower peripheral wall surface of the mouth member 4 attached to the opening of the container body 1 so as not to leak by heat sealing or the like. The mouth member 4 has a piston 5 inside. The illustrated piston 5 has a separate piston body 6 fixed thereto in order to exhibit appropriate elasticity and secure a large aperture, but may be an integrally molded product. The piston 5 is provided with a valve 7 that can be opened upward in the drawing. The valve 7 serves as a liquid outlet from the inner hole 8 communicating with the liquid chamber 2.
[0008]
A cylinder 10 urged upward by a resilient body 9 is attached to the piston 5 so as to be capable of liquid-tight sliding. An elastic annular portion 11 provided solely on the outer peripheral wall of the piston body 6 is a hermetically slidable contact portion with respect to the inner peripheral wall of the inner hole 12 of the cylinder 10. Moreover, the valve 13 which can be open | released above the drawing similarly to the valve 7 is attached to the cylinder-10. The valve 13 serves as an outlet for the liquid that has come out of the valve 7 into the inner hole 12.
[0009]
A nozzle body 14 is attached to the upper part of the cylinder 10. The illustrated nozzle body 14 includes a nozzle member 15 having a liquid flow path coming out of the valve 13, and a head cap formed integrally with the nozzle member 15 so as to be freely opened and closed by a separate body or a hinge mechanism. 16 and a thin plate-like member 18 serving as a valve body that opens and closes by being deformed in the middle of the liquid flow passage 17 of the nozzle member 15. Here, the thin plate-like member 18 is normally in a state of shielding the liquid flow passage 17 and is fixed at the rear portion . That is, during use, the thin plate member 18 is elastically deformed, and the vicinity of the tip of the liquid flow passage 17 becomes the discharge port portion 18a. A relief space 19 for elastically deforming the thin plate member 18 is formed on the lower surface of the crown 16. The thin plate member 18 is located as close as possible to the discharge port 20 at the end of the liquid flow path of the nozzle member 15, but is disposed so as not to be exposed from the discharge port 20. This is in consideration of variations due to the molding of the thin plate-like member 18 and is intended to prevent a finger or the like from touching the thin plate-like member 18 directly.
[0010]
In addition, on the inner upper surface of the nozzle member 15, a U-shaped wall-shaped surrounding portion 21 is erected and formed around the thin plate-like member 18 except for the discharge port 20. A groove 22 is formed on the upper end surface of the surrounding portion 21, and a weak portion 24 is formed on the upper end of the inner projection 23 formed by the groove 22. In addition, although the weak part 24 is formed only in the back of the inner side protrusion 23 in this example, you may form over the whole. In particular, it is formed in the rear portion where there is a high possibility of leakage.
On the other hand, the back surface of the crown 16 is formed with a first U-shaped projection 25 to be inserted into the surrounding portion 21, and at an appropriate interval from the first U-shaped projection 25. A second U-shaped protrusion 26 is also formed which is in sliding contact with the inner wall surface of the inner protrusion 23. Then, the weak portion 24 bites into the bottom portion 27a of the groove portion 27 formed by the first U-shaped projection 25 and the second U-shaped projection 26, or is deformed and pressed.
Reference numerals 28 and 29 are protrusions that prevent the liquid that has been discharged onto the upper surface of the thin plate-like member 18 from moving backward, and this is also an auxiliary means for preventing leakage of the liquid from the surrounding portion 21. one of. The protrusions 28 and 29 are also restricting protrusions for preventing the thin plate-like member 18 from being excessively curved. The prevention of excessive bending is to ensure the recovery over time by preventing plastic deformation of the thin plate-like member, and also to prevent excessive discharge of liquid during use.
[0011]
The thin plate member is coated with a metal material such as stainless steel, carbon steel, or the same alloy (phosphor bronze), or a resin such as polyamide, vinyl chloride, polyethylene, or polyurethane on the surface of the metal material. Or resin molded products such as POM, ABS, PP, PET, and PE. In short, it may be appropriately selected depending on the type of liquid. In addition, adhesion (sealing property) and corrosion resistance can be improved by coating the metal material with resin.
The thin plate-like member 18 is curved at the rear, and its rear portion 18b is press-fitted into a fixed vertical groove 15a formed in the nozzle member 15. May be fixed to the nozzle member 15 by various methods.
[0012]
Next, a usage example will be described. When the crown 16 is pressed, the cylinder 10 slides downward in the drawing against the elastic force of the elastic body 9, and at this time, the valve 13 is opened and the nozzle 10 is opened from the inside of the inner hole 12 of the cylinder 10. The liquid that has flowed into the liquid flow path of the member 15 increases the internal pressure, and the thin plate-like member 18 is deformed to expand the discharge port portion 18a to form a liquid flow path, which is eventually formed in the nozzle body 15. Liquid is discharged from the discharge port 20. When the pressing of the crown 16 is released, the thin plate-like member 18 returns to shield the liquid flow path again, and the cylinder 10 slides upward (returns) by the elastic force of the elastic body 9. At this time, the valve 7 is opened, and the liquid comes out from the inner hole 8 of the piston 5 to the inner hole 12 of the cylinder 10 to prepare for the next use.
[0013]
【The invention's effect】
The discharge container of the present invention is a discharge container that discharges liquid in a liquid storage chamber from a discharge port portion, and an elastic thin plate member is fixed to the discharge port portion so that the thin plate member is surrounded. In the discharge container in which the escape space is formed above the thin plate member, the discharge container is provided with a liquid flow passage communicating the liquid storage chamber and the discharge port, and the thin plate member is disposed above the liquid flow passage. the surrounding portion is formed, to form a deformable Dajaku portion above the surrounding part, in its surrounding portion, so the Dajaku portion is fitted with a head crown in a deformed state, the liquid to extra points Can be prevented, and therefore hygienic.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present invention.
2 is a cross-sectional view of a main part taken along line AA in FIG.
FIG. 3 is an enlarged view of a portion B in FIG.
4 is a top view showing a state where the crown of FIG. 1 is removed. FIG.
5 is a top view showing a state where a thin plate-like member in FIG. 4 is removed. FIG.
6 is a cross-sectional view of the main part of the nozzle body before the head crown of FIG. 2 is attached.
FIG. 7 is a rear view of the crown.
FIG. 8 is a reference diagram showing a conventional technique.
9 is a cross-sectional view of the main part of the line CC in FIG. 8;
[Explanation of symbols]
1 Container body 2 Liquid chamber (liquid storage chamber)
3 Soft Bag 4 Port Member 5 Piston 6 Piston Body 7 Valve 8 Inner Hole 9 Repellent Body 10 Cylinder
DESCRIPTION OF SYMBOLS 11 Elastic annular part 12 Inner hole 13 Valve 14 Nozzle body 15 Nozzle member 15a Fixed longitudinal groove 16 Head crown 17 Liquid flow path 18 Thin plate-like member 18a Discharge port part 18b Back part 19 Escape space part 20 Discharge port 21 Enclosure part 22 Groove part 23 Inner protrusion 24 weak part 25 first U-shaped protrusion 26 second U-shaped protrusion 27 groove 27a bottom 28 protruding 29 protruding X space part Y space part

Claims (1)

In the discharge container for discharging the liquid in the liquid storage chamber from the discharge port portion, an elastic thin plate member is fixed to the discharge port portion so that the thin plate member is surrounded, and above the thin plate member. In the discharge container in which the escape space is formed, a liquid flow path is provided in the discharge container to communicate the liquid storage chamber and the discharge port, and the surrounding portion of the thin plate member is formed above the liquid flow path . to form a deformable Dajaku portion above the surrounding part, in its surrounding portion, a discharge vessel, characterized in that fitted with head crown in a state where the Dajaku portion is deformed.

Images