JP2553490Y2 - Container with pump - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump-equipped container, and more particularly to a pump container having a pump unit attached to the mouth of a plastic bottle or tube container.

[0002]

2. Description of the Related Art Conventionally, various types of containers have been provided in which a spray pump or an extrusion pump is inserted from the mouth of a container and fixed at the mouth. As such a pump-equipped container, for example, there is one as shown in FIG. In the figure, reference numeral 50 denotes a container body, and a pump unit 53 is assembled to the nipple 52 by insert molding, and the nipple 52 is welded to the upper end 51 of the body of the container body 50 from the inside.

A pump unit 53 is fitted on a cup body 55, and includes an operating body 54, a metering chamber 56, a piston 5
7, a movable body 58 and a spring body 59. The order of moving the contents is as follows. First, the contents flow from the valve body 56a provided at the lower end of the fixed quantity chamber 56 into the fixed quantity chamber 56, and then move from the fixed quantity chamber 56 via the hole 58a of the movable body 58. It is moved into the body 58. Then, it is ejected from the nozzle 54a of the operating body 54 to the outside.

[0004]

However, such a pump unit 53 has not only a large number of components but also a movable valve body 56a and a valve presser 56b for isolating the container body 50 and the metering chamber 56. The structure must be provided separately from the hole 58a of the body 58, and the structure for sucking the contents into the container body 50 and discharging the contents to the outside is very complicated.

The present invention has been made in view of such a conventional problem, and provides a low-cost pump-equipped container having a small number of parts, and omitting a valve body 56a and a valve presser 56b. It is another object of the present invention to provide a pump-equipped container that has a simple structure and that can suck and discharge contents only by the sliding action of the piston 57.

[0006]

Means for Solving the Problems] To solve this problem, a pump container with this invention is provided with an opening at the upper end
A container Body, attached to the opening of the container body, a piston which slides a cap body having a bottomed cylindrical quantitative chamber for partitioning the inside of the container on the inner <br/> side lower, the quantitative chamber vertically And penetrate the piston and within a certain range with respect to the piston
And slide relatively up and down, and the bottom is the bottom of the metering chamber.
Through the container and communicate with the inside of the container.
And is slidably supported, and the upper end is the cap body.
A tubular movable body that penetrates and communicates with the outside, and a movable body
A spring body that constantly urges upward, and is provided at the upper end of the movable body
And an that the operating body, the movable body and the upper chamber which the upper inflow hole is drilled, to the lower chamber of the lower portion inflow hole is bored
Ri Contact is partitioned, the piston, the movable member is a piston
An upper wall closing the upper inlet of the upper chamber, to release open when they are lowered when they are relatively raised against, movable
Body closes the lower inlet of the lower chamber when they are lowered relative piston, in which it is characterized in that a lower wall release opens when rising.

[0007]

The operation of the present invention having the above configuration will be described . When jetting the contents thereof are the operation body is pressed by a finger, it operated to lower the movable member. Then the movable body is Pis
The upper inflow hole, which has been closed by the upper wall of the piston, is lowered relative to the ton, and is opened. On the other hand, the lower inflow hole formed in the lower chamber is closed by the lower wall of the piston. And in that state the piston engages with the movable body
Then, it descends in the fixed quantity room. Therefore contents that has been housed in the quantification chamber is pressurized the piston, it is ejected to the outside portion from the upper inlet hole through the upper chamber.

[0008] When you release the pressing of the steering Sakutai to the next, by the elastic force of the spring body, the movable body is increased. Also movable at this time
Only the body rises relative to the piston. It
Ri upper inlet of the upper chamber is closed by a top wall, bottom inlet is open. And the movable body engages with the piston
After that, the piston rises, so that the contents accommodated in the container main body are sucked into the decompressed quantitative chamber through the lower inflow hole of the lower chamber. By repeating this operation, the contents are ejected from the container body to the outside.

[0009]

Next, the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes an operating body, and the operating body 1 is a movable body 2
Is fitted to the upper end. The movable body 2 is composed of an upper chamber 3 and a lower chamber 4, and both chambers are completely separated. The upper chamber 3 is provided with an upper inflow hole 3a, and the lower chamber 4 is provided with a lower inflow hole 4a. The movable body 2 and the piston 5 are slidably moved up and down in the fixed quantity chamber 7, so that the piston 5 Upper wall 5a or lower wall 5b
Alternatively, one of the lower inflow holes 5b is opened and the other is closed.

A female screw cap 6a of the cap body 6 is screwed into the mouth 8a of the container body 8. Thus, the pump unit is firmly fixed to the mouth 8a. The cap body 6 includes a female screw cap 6a and a fixed amount chamber 7 integrally formed with the female screw cap 6a inside the female screw cap 6a. The type of the container body to which the pump unit is screwed may be a synthetic resin bottle type container body 8 as shown in FIG. 1 or a tube container type container body 9 as shown in FIG. An air hole 7a is formed in the cap main body 6, which is screwed to the synthetic resin bottle type container main body 8, so that the air pressure between the inside and the outside of the container main body 8 can be adjusted.

A piston is slidably housed in the fixed amount chamber 7, and an inner wall 5a and an outer wall 5b of the piston 5 are provided.
Is slidably in contact with the upper chamber 3 and the lower chamber 4 of the movable body 2,
The upper inflow hole 3a and the lower inflow hole 4a are opened and closed. When the movable body 2 is pressed by the operating body 1, the piston 5
The lower wall 5b of the movable body 2 is engaged with the upper chamber 3 of the movable body 2 and integrally moves down in the fixed quantity chamber 7. Next, when the movable body 2 rises due to the elastic force of the spring body 4c, the piston locking portion 4b of the lower chamber 4 rises integrally with the lower wall 5b of the piston 5.

As described above, the pump-equipped container according to the present invention has an effect that the number of parts is small and the production cost is inexpensive.
Because the plate valve and valve retainer are omitted, the structure is simple, and the suction and opening of contents can be performed only by the sliding action of the piston and the opening and closing of the inflow hole.
Since the discharge is performed, these operations can be performed integrally, and a reliable pump function can be performed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a container with a pump according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the pump-equipped container according to the present invention.

FIG. 3 is a sectional view showing the operation of the pump-equipped container according to the present invention.

FIG. 4 is a sectional view showing the operation of the pump-equipped container according to the present invention.

FIG. 5 is a sectional view showing a conventional pump-equipped container.

[Explanation of symbols]

 Reference Signs List 1 operation body 2 movable body 3 upper chamber 3a upper inflow hole 4 lower chamber 4a lower inflow hole 4b piston locking portion 4c spring body 5 piston 5a upper wall 5b lower wall 6 cap body 6a female screw cap 7 quantitative chamber 8 container body 8a Mouth

Claims (1)

(57) [Scope of request for utility model registration] And 1. A container present body having an opening at the upper end, attached to an opening portion of the container body, the container in its inner lower
A cap body having a bottomed cylindrical quantitative chamber for partitioning the interior, the piston sliding quantitative chamber vertically through the piston, the phase within a predetermined range with respect to the piston
In contrast, it slides up and down, and the lower part penetrates the bottom of the metering chamber.
To communicate with the inside of the container, airtight and
It is slidably supported, and the upper end passes through the cap body
A movable body that is in communication with the outside, a spring body that constantly urges the movable body upward, and an operating body that is provided at an upper end of the movable body, wherein the movable body has an upper inflow hole. an upper chamber bored, Ri Contact is partitioned into the lower chamber lower portion inflow hole is drilled, the piston is relatively on the movable body relative to the piston
Close the upper inflow hole of the upper chamber when
An upper wall release opened when being movable body against the piston
The lower inflow hole of the lower chamber when
Closed, and a lower wall which release opening when they are raised
A container with a pump.