JP2002362605A - Liquid injection container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a residual amount of liquid in an opaque container to be confirmed by sight from outside the container. SOLUTION: There is provided a liquid injection container in which a lower end of a cylinder 8 is positioned within an upper segment of an opaque container 1, a head depressing type liquid injection pump 7 is installed at an upper segment of the container, a sliding bottom plate 13 is fitted to an inner surface of the container, and liquid in the container can be injected out of a nozzle 11 installed at a head, under an operation of the head. An inner end segment of a wound resilient band 24 is connected to the sliding bottom plate 13, an outer circumference segment of the resilient band 24 is arranged along an inner surface of bottom segment of the container in such a way that it can be deformed upwardly at a rate corresponding to an amount of lift of the sliding bottom plate. A bottom surface of the container is made transparent and the bottom surface part having the resilient band spaced apart due to its upward deformation is arranged to enable a residual amount of liquid to be confirmed by sight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid ejection container having a head ejection type liquid ejection pump.

[0002]

2. Description of the Related Art A lower end of a cylinder is located in an upper part of an opaque container body, and a liquid ejecting pump of a head-down operation type is mounted on the upper part of the container body, and a sliding bottom plate is provided on an inner surface of the lower part of the container. A liquid ejection container is known in which a fixed bottom plate is fitted on the outer surface, and the liquid in the container is ejected from a nozzle of the head by operating the head (for example, JP-A-2001-48216). Reference). The container is made opaque in order to prevent ultraviolet rays and the like from entering the container and adversely affecting the liquid in the container.

[0003]

In the above liquid ejection container, the liquid in the container is ejected by the operation of pressing down the head which is urged upward, and the sliding bottom plate is formed by negative pressure inside the container by the ejection. Although the negative pressure was lifted to eliminate the negative pressure, the position of the sliding bottom plate could not be seen through the container and the amount of liquid in the container could not be known because the container was opaque. For this reason, the sliding bottom plate has risen to the upper limit and the liquid in the container has disappeared.

[0004] It is an object of the present invention to make it possible to recognize the position of the sliding bottom plate by converting the position of the sliding bottom plate into a change in the remaining amount display material area seen from the see-through portion.

A second object of the present invention is to make it possible to recognize the position of the sliding bottom plate by converting the length of the elastic band seen from the see-through portion provided on the bottom surface of the container body into the position of the sliding bottom plate. And

According to a third aspect of the present invention, the position of the sliding bottom plate can be recognized by converting the length of the elastic band seen from the see-through portion provided on the peripheral surface of the container body into the position of the sliding bottom plate. Aim.

[0007]

As a first means, the lower end of the cylinder 8 is located in the upper part of the opaque bottomed container body 1, and the liquid ejecting pump 7 of head-down operation type is mounted on the upper part of the container body. A sliding bottom plate 13 is fitted to the inner surface of the lower part of the container body, and the liquid in the container is provided so that the liquid in the container can be ejected from the nozzle 11 of the head by operating the head. Are attached to the inner surface of the container body bottom so as to be deformable upward at a rate corresponding to the amount of rise of the sliding bottom plate, and at least a part of the container body bottom is A liquid ejection container characterized in that a bottom inner surface portion where a remaining amount indicating material is separated by upward deformation is formed as a see-through portion that can be visually recognized as a remaining amount of liquid.

As a second means, the first means is provided, and the remaining amount display member 24 holds the outer peripheral portion of the spirally wound elastic band at the bottom of the container body and the inner end of the band. The part was connected to the sliding bottom plate 13 and the see-through part was provided on the bottom surface of the container body.

As a third means, the first means is provided, and the remaining amount indicating material 60 holds the elastic band slidably in the circumferential direction to the bottom of the container body, and has one end at the sliding bottom plate. 13 and the transparent part was provided at the lower end of the peripheral wall of the container.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquid ejection container according to the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a container body, and a mouth and neck 3 is erected from the upper end of a cylindrical body 2 made of an opaque material via a shoulder. Reference numeral 4 denotes a mounting cylinder which stands up from the upper end of a peripheral wall 5 fitted to the outer surface of the mouth and neck portion 3 through an inward flange to an inner / outer double cylinder 6 whose upper surface is closed.

A vertical pump 7 has an upper end of a cylinder 8 fitted into the space between the inner and outer double cylinders 6 and a lower end of the cylinder 8 at the body 2.
And a cylindrical piston 9 is fitted into the cylinder 8 so as to be movable up and down, and a stem 10 is erected upward from the inside of the cylinder 8 via the cylindrical piston 9 in an upwardly biased state. A pressing head 12 having a nozzle 11 is fitted to the upper end of the stem.

When the pressing head 12 is pressed down, the cylindrical piston 9 is lowered, and the liquid in the cylinder 8 is discharged from the nozzle 1.
Eject from one. After the ejection, the liquid in the container is sucked into the cylinder 8 when the cylindrical piston 9 is moved upward by the lifting of the pressing head 12. The suction of the liquid into the cylinder causes a negative pressure inside the container.

On the other hand, the sliding bottom plate 13 is fitted into the lower part of the body 2 of the container body 1 so as to be able to ascend by negative pressure in the container body.
In addition, a fixed bottom plate 14 with a lower surface closed is fitted to the outer surface of the lower end portion of the body, and a through hole 14a is formed in the lower surface of the fixed bottom plate. The through holes are provided to eliminate negative pressure between the bottom plates 13 and the fixed bottom plate 14 due to an increase in volume between the bottom plates 13 due to the rise of the slide bottom plate 13.

According to the present invention, a cylindrical body 13a in which the sliding bottom plate 13 is slidably fitted to the inner surface of the body portion 2, and a lower inner surface obstruction hanging from an inner peripheral surface of the cylindrical body through an inward flange. And the fitting cylinder 13b. Then, the holding cylinder 15 for holding the film is fitted to the outer surface of the lower end portion of the fitting cylinder 13b.
The holding cylinder has a small-diameter cylinder 15a whose lower surface is closed from the inner periphery of the flange hole of the large-diameter cylinder with an inward flange fitted to the lower outer surface of the fitting cylinder 13b, and the engaging element 1 is inserted from the lower surface of the small-diameter cylinder.
Hang 5b.

The fixed bottom plate 14 is attached to the lower inner surface of the opaque fixed cylinder 16 fitted to the lower outer surface of the body 2.
A bottom cover 18 in which an inward flange is attached by contacting the lower end, and a ribbed upright cylinder 17 is erected from the inner periphery of the flange hole;
A transparent bottom plate 2 in which a plurality of claws 20 are formed on an inner surface of a peripheral wall 19 fitted to an inner surface of a lower end portion of the fixed cylinder 16 and a film loading cylinder 21 is erected at a central portion of the bottom wall for closing the lower surface of the peripheral wall.
2 and the lower end of the small-diameter cylinder 15a is movably inserted into the upright cylinder 17.

Numeral 24 denotes a remaining amount indicating material. As shown in FIG. 3, a spiral cutting line 25 is formed at a central portion of the circular film excluding the outer peripheral portion to form an elastic band wound in a spiral shape. Then, the inner end portion of the elastic band is placed on the upper surface of the film loading cylinder 21, and the outer peripheral portion is engaged with the lower surface of the claw 20 so that the band portion excluding the inner end portion of the elastic band is placed on the bottom surface of the bottom plate 22. The engaging member 15b is brought into contact with the through hole 26 formed at the inner end of the elastic band so that the engaging member 15b is inserted into the through hole 26 so as not to easily come out. In addition, 2
Reference numeral 8 denotes an outer cylinder fitted to the outer surface of the mounting cylinder 4, and 29 denotes a cap of the press-down head 12, and a lower portion of the cap peripheral wall is detachably fitted to the outer surface of the outer cylinder 28.

Next, the operation of the present embodiment will be described.
When the pressure inside the container is reduced by suction of the liquid into the cylinder 8, the sliding bottom plate 13 rises as shown in FIG. 4 to pull up the inner end of the elastic band of the remaining amount indicating material 24. When the sliding bottom plate 13 further rises, the elastic band of the second winding is pulled and separated upward from the bottom surface. When the sliding bottom plate 13 further rises, the third elastic band is pulled and separated from the bottom surface as shown in FIG.

Therefore, if the rising position of the sliding bottom plate 13 is made to correspond to the number of windings separated from the bottom surface, the remaining winding number of the elastic band is viewed from the transparent bottom plate, so that the rising position of the sliding bottom plate 13 and, consequently, The remaining amount of the liquid can be determined. For example, when the number of windings of the elastic band is set to three, the time when the second winding is separated from the bottom surface is set to the middle ascending position of the sliding bottom plate 13, and the time when the third winding is separated from the bottom surface is the sliding bottom plate 1.
By associating them with the upper limit positions of 3 respectively, it is possible to know the remaining amount of liquid by seeing how many turns are separated from the bottom surface.

FIGS. 6 to 9 show a second embodiment of the liquid ejection container according to the present invention. In the present embodiment, the sliding bottom plate 1
The hanging rod 13c is hung from the central part of the closing wall that closes the lower inner surface of the fitting cylinder 13b that constitutes 3. Then, the holding cylinder 30 for holding the film is fitted to the hanging rod. The holding cylinder has an outward flange 31 attached to the upper outer surface of a cylindrical body closed on the lower surface fitted to a hanging rod, a plurality of guide ribs 32 vertically extending from the lower surface of the flange, and a lower surface of the cylindrical body. Is formed with an engaging element 33. At the lower limit position of the sliding bottom plate 13, the outward flange 31 is in contact with the upper surface of the upright cylinder 17, and the guide rib 32 is in contact with the inner peripheral surface of the upright cylinder 17 so as to be vertically movable.

The bottom plate 22 is formed of an opaque material, and has a plurality of elongated windows 22a extending in the radial direction on the bottom surface. The elastic band can be seen from these windows. For example, when the second elastic band is separated from the bottom surface, the elastic band cannot be seen from the inner half of the window. The other configuration is the same as that of the first embodiment, and the description is omitted.

FIGS. 10 to 15 show a third embodiment of the present invention. In the present embodiment, the bottom lid 46 constituting the fixed bottom plate 14 has a short cylinder 48 hanging from the outer peripheral lower surface of the bottom wall that closes the lower surface of the opaque fixed cylinder 47 fitted to the lower outer surface of the body 2. At the same time, the central portion of the bottom wall is raised in a cylindrical shape, and a through hole 50 is formed in the central portion of the raised portion 49.

A transparent bottom plate 51 to be attached to the bottom cover 46
The film mounting cylinder 53 is erected from the center of the closed wall that closes the lower surface of the peripheral wall 52 fitted to the outer surface of the short cylinder 48, and a plurality of pillars 54 with claws are erected around half of the cylinder. Further, a plurality of engaging columns 55 are erected on the outer peripheral portion of the closing wall, and a film holding cylinder 56 is formed outside the engaging columns.

As shown in FIG. 12, the remaining amount indicating material 60 is made of a belt-like film, and one end is formed in a circular shape.
A through hole 61 is formed in the circular portion. This circular film is inserted into the gap between the film holding cylinder 56 and the peripheral wall 52, and one end is bent in the radial direction so as to be inserted into the notch formed in the film holding cylinder 56, so that the circular portion becomes the film mounting cylinder 53. To engage with the lower surface of the pawl with the pawl 54, and the engaging element 42 is inserted into the through hole 61 to be engaged. The length of the film is such that the film is separated from the gap between the film holding cylinder 56 and the peripheral wall 52 when the sliding bottom plate 13 reaches the upper limit position.

Although the film is formed in a straight line in FIG. 12, the film is not limited to this, and may be formed in an L-shape by bending one end as shown in FIG. Further, in the above description, the bottom plate 51 is made of a transparent material, but is not limited thereto and may be formed of an opaque material. In this case, a window is formed in the peripheral wall 52 so that the film can be viewed from the outside.
The other configuration is the same as that of the first embodiment, and the description is omitted.

Next, the operation will be described. When the sliding bottom plate 13 rises due to the negative pressure inside the container, one end of the film is pulled upward, and the film holding cylinder 56 and the peripheral wall 52 are pulled.
The length of the film seen from the outside gradually decreases, and the film becomes completely invisible when the sliding bottom plate reaches the upper limit.

[0026]

According to the first aspect of the present invention, since the remaining amount indicating material connected to the sliding bottom plate is attached to the opaque container body bottom and the see-through portion is provided at the container body bottom, the negative pressure inside the container is reduced. The position of the sliding bottom plate that has risen due to the formation, and thus the remaining amount of the liquid, can be known from the change in the length or the area of the remaining amount display material seen from the see-through portion.

According to the second aspect of the present invention, since the spiral elastic band is held at the bottom of the container and the see-through portion is provided on the bottom of the container, the remaining amount of liquid can be seen from the bottom of the container. It can be known as a change in the length of the quantity indicating material.

According to the third aspect of the present invention, since the elastic band is slidably held on the bottom of the container body in the circumferential direction and the see-through portion is provided on the peripheral wall of the container body, the remaining amount of the liquid can be reduced by the peripheral surface of the container body. It can be recognized as a change in the length of the remaining amount display material that can be seen from the user.

[Brief description of the drawings]

FIG. 1 is a partial sectional view and a bottom view of a liquid ejection container according to the present invention.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is a plan view of the remaining amount indicating material.

FIG. 4 is a view similar to FIG. 1, showing an intermediate raised position of the sliding bottom plate.

FIG. 5 is a view similar to FIG. 1, showing an upper limit position of the sliding bottom plate.

FIG. 6 is a partial sectional view and a bottom view showing a second embodiment of the liquid ejection container according to the present invention.

7 is an exploded perspective view of FIG. 1;

FIG. 8 is a view similar to FIG. 1, showing an intermediate raised position of the sliding bottom plate.

FIG. 9 is a view similar to FIG. 1, showing an upper limit position of the sliding bottom plate.

FIG. 10 is a partial sectional view and a bottom view showing a third embodiment of the liquid ejection container according to the present invention.

FIG. 11 is an enlarged view showing a main part.

FIG. 12 is a plan view of the remaining amount indicating material.

FIG. 13 is a plan view showing a modification of the remaining amount display material.

FIG. 14 is an exploded perspective view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 7 Pump 8 Cylinder 11 Stem 13 Sliding bottom plate 24, 60 Remaining amount display material

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Ogawa 6-48, Yayoi-cho, Shizuoka-shi, Shizuoka Prefecture Inside Bora Kasei Kogyo Co., Ltd. (72) Inventor Tomoharu Aiwa 6-48, Yayoi-cho, Shizuoka-shi, Shizuoka Pref. (72) Inventor Kazuo Suzuki 3-2, 6 Oshima, Koto-ku, Tokyo F-term in Yoshino Industrial Co., Ltd. F-term (reference) 3E014 PA01 PB01 PC03 PD11 PE06 PE08 PF10 3E084 AA04 AA12 AB01 BA02 CA01 DA01 DB12 FA09 FB01 GA04 GB04 JA20 KB01 LC01 LD22

Claims (3)

[Claims] 1. A lower end of a cylinder 8 is positioned in an upper portion of an opaque bottomed container body 1, and a liquid ejecting pump 7 of a head pressing operation type is mounted on an upper portion of the container body. In a liquid ejection container provided with a sliding bottom plate 13 fitted therein so that liquid in the container can be ejected from a nozzle 11 of the head by operating the head, a remaining amount display partly connected to the sliding bottom plate 13 Lumber 24, 6
0 is attached to the inner surface of the container body bottom so as to be deformable upward at a rate corresponding to the amount of rise of the sliding bottom plate, and at least a part of the container body bottom is separated from the remaining amount indicating material by the upward deformation. A liquid ejection container characterized in that a bottom inner surface portion is formed as a see-through portion that can be visually recognized as a remaining amount of liquid. 2. The remaining amount display member 24 holds an outer peripheral portion of a spirally wound elastic band at a bottom portion of a container body, and connects an inner end portion of the band to a sliding bottom plate 13; The liquid ejection container according to claim 1, wherein the see-through portion is provided on a bottom surface of the container body. 3. The remaining amount indicating material 60 holds the elastic band slidably in the circumferential direction on the bottom of the container, connects one end to the sliding bottom plate 13, and connects the see-through portion to the container. The liquid ejection container according to claim 1, wherein the liquid ejection container is provided at a lower end portion of the peripheral wall.