JP3856992B2 - Liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pump type liquid ejection container.
[0002]
[Prior art]
For example, as disclosed in Japanese Patent Application Laid-Open No. 9-202345, a part of the top wall of the cap screwed into the container body neck and neck is opened, and the cylindrical part is erected from the periphery of the opening. A suction valve and a discharge valve are provided in the upper part, respectively, and a pressurizing chamber is provided on the side of the cylinder part so as to communicate with the middle cylinder part of the two valves and project the peripheral wall outward. There is known a liquid ejection container in which a peripheral wall of an elastic dome-like member provided separately to the peripheral wall of the pressurizing chamber is tightly fitted, and a means for transferring the liquid in the container body to the suction valve is provided in the container body. Yes.
[0003]
[Problems to be solved by the invention]
When printing, hot stamping, labeling, etc. on the outer surface of the body, it is necessary to align the location where printing is to be performed. Conventionally, a part of the thread formed on the outer surface of the mouth and neck of the container body is cut. However, when the notch is formed in the mouth-and-neck portion as described above, the appearance is impaired, and other means have been demanded.
According to the first aspect of the present invention, the appearance is improved by forming the alignment protrusion in the container body.
[0004]
[Means for Solving the Problems]
As a first means, the pump device 5 is placed on the upper part of the synthetic resin container main body 1 at the lower end surface opening of the trunk part, and the neck part 3 is erected from the upper end of the cylindrical body part 2 through the shoulder part 2a. In addition, a sliding bottom plate 10 is provided in the lower part of the body portion 2, and the sliding bottom plate 10 is provided so that the sliding bottom plate 10 can be lifted by negative pressure in the container body by sucking up the liquid in the container body by the pump operation. In the liquid ejection container,
Positioning for aligning the circumferential position of the container body from the lower surface of a part of the circumferential direction of the container body shoulder 2a as positioning means for performing printing, hot stamping, or labeling on the outer surface of the body 2 The projecting portion 14 is suspended.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a liquid ejection container according to the present invention will be described with reference to the drawings. First, the known part of the liquid ejection container will be briefly described. Upright of the mouth and neck 3 through the shoulder 2a from the upper end of the cylindrical body 2 of the lower end surface opening of the container body 1 made of synthetic resin, The mounting cylinder 3a is fitted to the outer surface of the mouth neck. Then, the upper end portion of the cylinder 4 is engaged between the upper end of the mouth / neck portion 3 and the mounting cylinder 3a via the outward flange so as to hang down into the container body, and the cylindrical piston 5a is movable up and down into the cylinder. The vertical pump 5 is formed by fitting, and the stem 6 is erected from the cylinder 4 through the cylindrical piston 5a in an upwardly biased state with the nozzle 7 at the upper end of the stem. The head 8 is fitted. When the push-down head 8 is pushed down, the liquid in the cylinder 4 is ejected from the nozzle 7, and when the push-down head 8 is raised, the liquid in the container body is sucked into the cylinder 4. The inside of the container body becomes negative pressure as the liquid is sucked into the cylinder 4.
[0006]
On the other hand, the sliding bottom plate 10 is fitted into the lower portion of the barrel portion 2 so as to be lifted by negative pressure in the container body, and a fitting cylinder 11 as a bottom lid is provided on the outer surface of the lower end portion of the barrel portion 2. A through-hole 13 is formed in the center portion of the bottom plate 12 which is fitted with an uneven engaging means so that it cannot be pulled out and which closes the lower surface of the fitting tube.
In order for the fitting cylinder 11 not to impair the appearance of the body portion 2, the through hole 13 raises the sliding bottom plate 10, and the volume between the sliding bottom plate and the fitting cylinder bottom plate 12 increases. In order to eliminate the negative pressure caused by this, they are provided respectively.
[0007]
In the present invention, is vertically the projections as positioning collision portion 14 from the lower surface of the container body shoulder portion 2a. Projecting portion 14, the print performing the barrel 2 the outer surface, hot stamping is intended for use in positioning for labeling and the like. In addition, since the container main body 1 of the lower end surface opening, the sliding bottom plate 10 and the fitting cylinder 11 are separately formed, the protrusion 14 can be formed integrally with the container main body 1.
[0008]
According to the first aspect of the present invention, the positioning protrusion for printing, hot stamping, and labeling to be performed on the outer surface of the body portion is provided without protruding from the outer surface of the container body as in the prior art. Since it is suspended from the lower surface of the container, the appearance of the container body is not impaired. In addition, since the alignment projection can be integrally formed with the container body, it is not necessary to provide a separate process for forming the projection, and therefore the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a half sectional view of a liquid ejection container according to the present invention.
FIG. 2 is a half sectional view of the container body.
FIG. 3 is an arrow view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 2 Trunk part 2a Shoulder part 3 Mouth neck part 10 Sliding bottom plate 14 Positioning protrusion

Claims (1)

A pump device 5 is placed on the upper part of the synthetic resin container main body 1 at the lower end surface of the trunk part, and the lower part of the trunk part 2 is erected from the upper end of the cylindrical trunk part 2 through the shoulder 2a. Inside, a sliding bottom plate 10 is provided,
In the liquid ejection container provided so that the sliding bottom plate 10 can be raised by the negative pressure in the container body by sucking up the liquid in the container body in the pump operation,
Positioning for aligning the circumferential position of the container body from the lower surface of a part of the circumferential direction of the container body shoulder 2a as positioning means for performing printing, hot stamping, or labeling on the outer surface of the body 2 A liquid ejection container in which a projecting portion 14 is vertically provided.

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