JP2601227Y2 - Creamy container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a creamy material discharging container.

[0002]

[Prior art]

SUMMARY OF THE INVENTION A cylinder vertically suspended into the mouth and neck of a container body, and a stem in which a cylindrical piston is vertically movably fitted into the cylinder and which rises upward from the cylindrical piston to the cylinder. A pump device is formed by an actuating member having a press-down head with a nozzle attached to the upper end, and a slide fitted into the bottom of the container body by sucking up and discharging the cream inside the container by the operation of the pump device. 2. Description of the Related Art A cream discharge container provided so as to prevent a moving bottom plate from rising and creating a negative pressure in a container is widely known.

[0003] Conventionally, this kind of container has to discharge the air in the container by operating a pump device before discharging the creamy material. Many press-down heads have to be pressed in order to discharge the waste, which has been troublesome for the user.

In the present invention, the amount of air to be discharged from the container is reduced by providing a sealing member between the lower outer surface of the cylinder and the lower inner surface of the neck of the container body, thereby reducing the number of times of the above-mentioned empty pressing. .

[0005]

Means for Solving the Problems A cylinder vertically suspended in the mouth and neck of the container body, and a cylindrical piston into which a cylindrical piston is vertically movably fitted, and an upper end of a stem which rises upward from the cylindrical piston to the cylinder. And a working member provided with a press-down head with a nozzle, a pump device is formed, and a slide is fitted into the bottom of the container body by sucking up and discharging the cream inside the container by the operation of the pump device. In a cream-like material discharge container provided so as to prevent the moving bottom plate from rising to create a negative pressure inside the container, a sealing projection 5a is formed on the inner surface of the lower part of the mouth and neck portion 3.
The outer peripheral surface of the lower part of the cylinder 11 is hermetically fitted to the inner surface of the projection to form the sealing means 5.

[0006]

When the cap 27 is removed from the state shown in FIG. 1 and the operating member 19 is pressed down via the pressing head 25 and the pressing is released, the pump device 10 is operated and the air in the container is discharged from the nozzle 24. At this time, the air between the outer surface of the cylinder 11 and the inner surface of the container mouth and neck 3 can be prevented from flowing into the container body by the sealing means 5, so that the air to be discharged from the container body can be prevented. The amount is reduced.

After the air is exhausted, the cream inside the container is discharged from the nozzle 24 by the up and down movement of the operating member 19, and the negative pressure with the inside of the container due to the reduction of the cream is eliminated by raising the sliding bottom plate 6.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The container of the present invention comprises a container body 1 and a pump device 10.

The container body 1 has a body portion 2 containing a creamy material, and a mouth-neck portion 3 and an extension tube portion 4 are erected from both inner and outer peripheral edges of a shoulder portion provided at an upper end of the body portion. A sealing projection as sealing means 5 is provided on the inner surface of the lower end of the mouth and neck 3
5a is attached, and the sliding bottom plate 6 is fitted to the inner surface of the lower part of the body 2 so as to be able to ascend by negative pressure due to the reduction of the cream inside the body.

A bottom cover 7 is fitted to the lower end of the body 2,
The upper end of the support cylinder 8 rising from the center of the bottom wall of the bottom lid is brought into contact with the center of the lower surface of the sliding bottom plate 6 so that other objects come into contact with the body during transportation or the like, and the inside of the body is slightly pressurized. However, the sliding bottom plate 6
Are formed so as not to fall off, and a plurality of reinforcing plates 9 are erected from the upper surface of the bottom wall of the bottom cover 7.

The pump device 10 comprises a cylinder 11, an auxiliary member 12
And an operating member 19.

The cylinder 11 is formed by engaging an outward flange attached to the upper end of the cylindrical wall of the upper and lower end surfaces with the upper end of the mouth and neck portion 3 and suspending the cylindrical wall into the mouth and neck. The outer peripheral surface of the lower end portion of the cylindrical wall is pressed against the inner surface of the sealing projection 5a in an airtight manner.

The auxiliary member 12 has an outer cylindrical portion 13 whose lower end is fitted to the upper end of the above-described extended cylindrical portion 4, and is fitted through an inward flange 14 attached to the upper end of the outer cylindrical portion. Stand the cylinder part 15,
In addition, first and second inner cylindrical portions 16 and 17 vertically extending from the lower surface and the inner peripheral edge of the inward flange 14 are respectively fitted to the upper outer surface of the mouth and neck portion 3 and the inner surface of the upper end of the cylinder 11. .

The actuating member 19 has a cylindrical piston 21 fitted to the lower part of the outer surface of the stem 20, and the cylindrical piston 21 is suspended from the lower end of the stem 20 and the press-down head 25 with the nozzle 24. It is formed to be able to slide between the upper end of the large inner diameter part of 22,
With the depression of the depression head 25 against the elasticity of the coil spring 23, the stem 20 descends, and the cylindrical piston 21 descends with a delay with respect to the stem 20, thereby forming a through hole formed in the lower part of the stem 20. 26, the stem 20 communicates with the container body, and the pressing down of the pressing head 25 releases the stem.
As the cylinder 20 rises, the cylindrical piston 21 rises with a delay with respect to the stem 20, and the through-hole 26 is closed by the cylindrical piston 21.

Reference numeral 27 denotes a cap.

Each member except the coil spring 23 is formed of a synthetic resin material.

[0017]

[Effects of the Invention] The present invention has the above-mentioned structure. A sealing projection 5a is provided on the lower inner surface of the container body neck portion 3, and the lower outer peripheral surface of the cylinder is fitted airtightly to the inner surface of the projection. As a result, the air flowing between the outer surface of the cylinder 11 and the inner surface of the mouth and neck portion 3 flows into the body of the container body.
Therefore, the amount of air to be exhausted from the inside of the container at the beginning of use of the container can be reduced. The number of times can be reduced, the air in the container can be quickly discharged, and the sealing means 5 prevents the cylinder 11 from running sideways when the pump device 10 is operated, so that the pump device 10 operates smoothly. Projection for the above seal
Instead of 5a, a sealing member is fitted to the lower outer surface of the cylinder as in JP-A-2-66078, and the gap between the lower inner surface of the container body neck and neck and the lower outer surface of the cylinder is formed by the sealing member. In this case, a separate sealing member is required, and when the cylinder is inserted into the mouth and neck of the container, the sealing member touches the inner wall of the mouth and neck. Therefore, a mechanism for preventing the cylinder from being displaced from the mounting position with respect to the cylinder is also required. In the present invention, a sealing ridge 5a is provided around the lower inner surface of the mouth and neck portion, and the lower outer peripheral surface of the cylinder only needs to be airtightly fitted to the inner rim of the sealing ridge. May be
Also, there is no need to prevent the displacement or dropout of the separate member, so that the above-mentioned sealing can always be performed reliably.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing a first embodiment of the container of the present invention.

[Explanation of symbols]

 10 Pump device 11 Cylinder 19 Operating member

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylinder suspended in a mouth and neck of a container body,
An operating member in which a cylindrical piston is fitted into the cylinder so as to be movable up and down, and a press-down head with a nozzle is provided at an upper end of a stem that rises upward from the cylindrical piston to the cylinder;
A pump device is formed, and the operation of the pump device sucks up and discharges the cream-like substance in the container, so that the sliding bottom plate fitted into the bottom of the container body rises to prevent negative pressure inside the container. In the cream-like material discharging container provided so as to perform sealing, a sealing projection 5a is provided around the lower inner surface of the mouth and neck portion 3, and the lower outer peripheral surface of the cylinder 11 is fitted airtightly to the inner surface of the sealing portion. A cream-like material discharging container, wherein the container is a means 5.