JP3751450B2 - Liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a so-called vertical pump type liquid ejection container.
[0002]
[Prior art]
The liquid ejecting container, as is widely used, is configured such that a cylinder is placed in a container via a flange that is placed on a container body mouth surface from a mounting cylinder fitted to the outer surface of the container body mouth and neck and protrudes inwardly. A vertical movement of an operating member that is suspended in the body and is erected upward from the inside of the cylinder sucks the liquid in the container into the cylinder, and the liquid in the cylinder is discharged from the nozzle of the push-down head at the upper end of the operating member. It is possible to erupt. In addition, a part of the cylinder is recessed on the inner surface of the lower part of the cylinder in order to discharge residual pressure water in the cylinder when the operating member is pushed down to almost the lower limit and improve liquid suction when the operating member is raised. When a cylindrical piston at the lower end of the actuating member is positioned inside the seal releasing part by providing a seal releasing part such as a groove, it is placed inside the cylinder and above the cylinder via a gap between the cylinder inner surface and the outer surface of the operating member. The residual pressure water is provided to be discharged into the container body through communication with the drilled discharge hole.
[0003]
[Problems to be solved by the invention]
As described above, in the liquid ejection container provided with the discharge hole for discharging the residual pressure water at the upper part of the cylinder, the residual pressure water in the cylinder is ejected from the discharge hole every time the operating member is pushed down to almost the lower limit. As a result, the scattered water adheres to the inner surface of the peripheral wall of the container body, and therefore, when the container body is transparent or translucent, the above-mentioned adhered water can be seen from the outside of the container body and the appearance is impaired. It was. When the liquid is a lotion or the like that tends to form bubbles, the scattered water often forms bubbles and adheres to the inner wall surface of the container, and the bubbles are likely to remain without dripping, which further impairs the appearance of the container. It will be.
[0004]
In the present invention, the cylinder portion outer peripheral surface having the discharge hole is surrounded by a cylinder so that the residual pressure water does not adhere to the inner wall of the container body and damage the appearance of the container body. is there.
[0005]
[Means for Solving the Problems]
As a first means, a cylinder is suspended from the mounting cylinder fitted to the outer surface of the container body mouth and neck portion into the container body through a flange that is placed on the container body mouth surface and protrudes inward. By vertically moving the actuating member that is urged upward, the in-container liquid can be ejected from the nozzle of the pressing head at the upper end of the actuating member,
Also, when the operating member is pushed down to almost the lower limit, the residual pressure water in the cylinder can be discharged from the discharge hole drilled in the upper part of the cylinder.
Furthermore, in a liquid ejection container whose container body is transparent or translucent,
A lower surface opening that surrounds the outer peripheral surface of the cylinder 11 having the discharge hole 17 with a cylindrical body 51, and allows residual pressure water discharged from the discharge hole to return to the container body between the inner surface of the cylinder and the outer surface of the cylinder 11. A gap was formed.
[0006]
As a second means, the above-mentioned means is provided and the cylinder 51 is suspended from the lower surface of the inner peripheral portion of the packing portion 53 having a bowl shape to form a cylinder 52 with packing, and the upper surface of the packing portion is flanged The above-mentioned cylinder 52 with packing is assembled to the cylinder 11 by bringing the inner peripheral surface into contact with the lower surface of 12 and the outer peripheral surface of the upper end portion of the cylinder 11 and the outer peripheral surface with the inner peripheral surface of the mounting cylinder 3. It was.
[0007]
As a third means, the first means is provided, and a protrusion 54 is provided around the inner surface of the upper end of the cylinder 51, and a groove is provided around the outer surface of the upper end of the cylinder 11, so that the protrusion The cylindrical body 51 was suspended by fitting the strip 54 into the recessed groove.
[0008]
As a fourth means, the first means is provided and the lower portion of the cylindrical body 51 is formed as a small inner diameter portion 55. The small inner diameter portion is fitted to the outer surface of the lower end portion of the cylinder 11, and the upper portion is lower than the small inner diameter portion. A window 56 was drilled at the lower end of the tube portion.
[0009]
As a fifth means, the first means is provided and the cylindrical body 51 is formed of a water-resistant film 60, and ribs 59, 59 are provided vertically on the left and right sides of the discharge hole 17 of the cylinder 11, and so on. The cylindrical body 51 was fixed to the cylinder outer peripheral surface by surrounding both ribs together with the cylinder outer peripheral surface.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The drawings will be described below. First, a known structure will be described. The container body 1 has a mouth-and-neck portion 2 erected from the upper end of the trunk portion via a shoulder portion.
[0011]
The lower half of the mounting cylinder 3 is screwed to the outer surface of the mouth-and-neck part, and the upper half is a small outer diameter cylinder part 4 serving as a cap fitting cylinder part, and an inward flange part 5 is formed from the lower part of the cylinder part. A guide cylinder portion 6 having an upper small inner diameter is raised.
[0012]
11 is a cylinder, and the upper surface of the outward flange 12 attached to the upper end is brought into contact with the lower surface of the inward flange portion 5, and the outer surface of the outward flange is brought into contact with the inner surface of the lower end portion of the small outer diameter cylindrical portion 4. The lower surface of the orientation flange is placed on the upper end surface of the mouth and neck through the packing and is suspended in the container body. The cylinder has a lower end portion as a small diameter cylindrical portion 14 through a lower small diameter tapered portion 13 and the upper end portion of the suction pipe 15 is fitted into the cylindrical portion, and the pipe is suspended to the lower part of the container body. An outside air suction hole 16 and a discharge hole 17 for discharging the residual pressure water in the cylinder are formed in the upper part of the cylinder, and a groove 18 for releasing the seal, which will be described later, is provided in the lower inner surface. A tapered valve seat 19 having a small diameter is provided at the bottom of the cylinder, and a ball valve 20 is placed on the valve seat to form a suction valve.
[0013]
From the inside of the cylinder, the operating member 31 having a cylindrical piston 32 at the lower end is urged upward to stand. The actuating member vertically moves with respect to the cylinder to suck the liquid in the container into the cylinder through the suction pipe 15 and the suction valve, and the nozzle in the push-down head 33 at the upper end of the working member through the discharge valve. It is provided so as to be ejected from the hole 34, and the illustrated example shows a so-called pressure accumulation type operating member, but a normally used operating member may be used.
[0014]
In the illustrated example, a rod 41 for elongating the pressure chamber of the cylinder is raised from the bottom of the cylinder, and an operating member is provided between the upper surface of the leg portion 42 of the rod and the cylindrical piston 32. A spring 43 for power is used.
[0015]
In the above configuration, when the operating member 31 is pushed down from the state where the liquid is sucked into the cylinder, the inside of the cylinder is pressurized, the discharge valve is opened, and the liquid is ejected from the nozzle hole 34. When the outer periphery of the cylindrical piston 32 at the lower end of the operating member enters the groove 18, the seal of the cylindrical piston with respect to the inner wall surface of the cylinder is released, and then the groove 18 passes between the lower outer surface of the operating member and the inner wall surface of the cylinder. Then, the lower part of the cylinder communicates with the discharge hole 17, and then the liquid remaining in the lower part of the cylinder, that is, the residual pressure water, is ejected to the outside of the cylinder through the discharge hole 17, and the ejected liquid adheres to the wall surface of the container When the container body is transparent or translucent, it adheres to the inner wall surface from the outside of the container body, and the flowing liquid is seen through to impair the appearance of the container body.
[0016]
In the present invention, the cylinder portion outer peripheral surface having the discharge hole 17 is surrounded by the cylinder 51, and the residual pressure water discharged from the discharge hole is inserted into the container body between the cylinder inner surface and the cylinder outer surface. A gap in the lower surface opening that can be refluxed was formed.
[0017]
In the embodiment shown in FIG. 1, the cylinder is integrally formed with the packing to form a cylinder 52 with packing. The packing portion 53 is bowl-shaped, and its inner peripheral surface is in contact with the outer peripheral surface of the upper end of the cylinder, the upper surface is in contact with the lower surface of the flange 12, and the outer peripheral surface is in contact with the inner peripheral surface of the mounting cylinder 3. The cylinder body 51 is suspended from the lower surface of the inner circumferential portion of the packing. The cylinder with packing is integrally formed of a synthetic resin material, and the packing and the flange 12 are sandwiched between the container mouth opening surface and the inward flange portion 5 of the mounting cylinder 3.
[0018]
FIG. 2 shows a second embodiment. In this embodiment, a protrusion 54 is provided around the inner surface of the upper end portion of the cylinder 51, and a fitting groove is provided around the outer surface of the upper end portion of the cylinder 11 so that the protrusion 54 is fitted. The cylindrical body 51 is suspended by being fitted into the groove.
[0019]
FIG. 3 shows a third embodiment. In the third embodiment, the lower portion of the cylinder 51 is formed in a small inner diameter portion 55 corresponding to the lower outer surface of the cylinder 11, and the cylinder 51 is attached from the upper end of the small inner diameter portion. Standing up, an appropriate number of windows 56 were formed in the lower end of the cylindrical body. The small inner diameter portion 55 is formed by a small diameter cylindrical portion 57 and a tapered cylindrical portion 58 that are fitted to the outer surface of the small diameter cylindrical portion 14 and the tapered portion 13 of the cylinder, respectively, and is detachably fitted to the outer surface of the lower portion of the cylinder. .
[0020]
4 and 5 show a fourth embodiment. In this embodiment, ribs 59 and 59 are vertically provided on the left and right sides of the discharge hole 17 of the cylinder, and the cylinder 51 is water-resistant. The cylindrical body 51 is fixed to the cylinder outer peripheral surface by surrounding both the ribs together with the cylinder outer peripheral surface. The film may be formed of a shrink film that shrinks by pressurization, or may be formed of a somewhat elastic film, and the film cylinder may be forcibly fitted. In this case, a gap of the lower surface opening is formed between the left and right ribs 59.
[0021]
【The invention's effect】
In the present invention, the cylinder portion outer peripheral surface having the discharge hole 17 is surrounded by the cylinder 51, and residual pressure water discharged from the discharge hole is placed between the cylinder inner surface and the cylinder outer surface. Since a gap is formed in the lower surface opening that can be recirculated into the container body, the splashed water or bubbles released from the discharge hole do not adhere to the wall surface of the container body by the cylinder body. Even if it is transparent, splashed water or the like adhering to the inner wall surface of the container can be seen from the outside of the container and the appearance of the container is not impaired.
[0022]
In the case of claim 2, since the packing portion and the cylinder 51 are integrally formed, the attachment of the cylinder is not forgotten, and in the case of claim 2, the cylinder 51 is easily attached to the cylinder. In this case, since the cylindrical body is formed of the film 60, the cylindrical body can be reduced in weight, and therefore it is easy to fit the cylindrical body to the cylinder outer surface to such an extent that the cylindrical body does not fall off.
[Brief description of the drawings]
FIG. 1 is a half cross-sectional view of a liquid ejection container of the present invention.
FIG. 2 is a half sectional view of the container shown in the second embodiment.
FIG. 3 is a half sectional view of the container shown in the third embodiment.
FIG. 4 is a half sectional view of the container shown in the fourth embodiment.
5 is a cross-sectional view of the main part of FIG.
[Explanation of symbols]
3 ... Installation cylinder 11 ... Cylinder
17… Discharge hole 31… Operating member
32 ... Cylindrical piston 51 ... Cylinder
52 ... Packing cylinder 60 ... Film

Claims (5)

A cylinder is suspended from the mounting cylinder fitted to the outer surface of the container body neck at the container body mouth surface through a flange projecting inward and urged upward from the inside of the cylinder. By vertically moving the actuating member, the liquid in the container can be ejected from the nozzle of the pressing head at the upper end of the actuating member.
Also, when the operating member is pushed down to almost the lower limit, the residual pressure water in the cylinder can be discharged from the discharge hole drilled in the upper part of the cylinder.
Furthermore, in a liquid ejection container whose container body is transparent or translucent,
A lower surface opening that surrounds the outer peripheral surface of the cylinder 11 having the discharge hole 17 with a cylindrical body 51, and allows residual pressure water discharged from the discharge hole to return to the container body between the inner surface of the cylinder and the outer surface of the cylinder 11. A liquid ejection container, characterized in that a gap is formed. The cylindrical body 51 is suspended from the lower surface of the inner peripheral portion of the packing portion 53 having a bowl shape to form a cylindrical body 52 with packing. The upper surface of the packing portion is the lower surface of the flange 12, and the inner peripheral surface is the cylinder 11. 2. The liquid according to claim 1, wherein the cylinder body with packing 52 is assembled to the cylinder 11 by bringing the outer peripheral surface into contact with the outer peripheral surface of the upper end portion and the inner peripheral surface of the mounting cylinder 3. Spout container. A protrusion 54 is provided around the inner surface of the upper end of the cylinder 51, and a groove is provided around the outer surface of the upper end of the cylinder 11, and the protrusion 54 is fitted into the groove 51 so as to fit the cylinder 51. The liquid ejection container according to claim 1, wherein: The lower portion of the cylindrical body 51 is formed as a small inner diameter portion 55, the small inner diameter portion is fitted to the outer surface of the lower end portion of the cylinder 11, and a window 56 is formed at the lower end portion of the cylindrical portion above the small inner diameter portion. The liquid ejection container according to claim 1. The cylinder 51 is formed of a water-resistant film 60, and ribs 59, 59 are provided vertically on the left and right sides of the discharge hole 17 of the cylinder 11, and both the ribs are surrounded by the cylinder outer peripheral surface to surround the cylinder 51. The liquid ejection container according to claim 1, wherein the liquid is fixed to the outer peripheral surface of the cylinder.

Images