JPH0752050Y2 - Discharge container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a discharge container for containing a highly viscous content.

"Problems to be solved by conventional techniques and devices" Conventionally, this type of container for storing creamy products, pastes, etc. was equipped with a manual pump having a push-down discharge head at the upper end of the container body. There is a discharge container disclosed in Sho 64-11968.

In this discharge container, a container main body having a rising bottom slidably fitted in a cylinder having a top wall and a small diameter cylinder are erected from the upper surface of the top wall of the container main body, A suction pump for high-viscosity contents is provided in a portion, and a tubular piston is slidably inserted into the cylinder, and a discharge valve for high-viscosity contents is provided in the tubular piston, and a manual pump It comprises a push-down discharge head mounted on the upper end of the tubular piston, and a spring equipped to bias the push-down discharge head or the tubular piston upward.

Thus, in this discharge container, when the push-down discharge head is pushed down, the pump operates and the contents are ejected from the nozzles of the push-down discharge head. It is convenient because it can be taken out quickly.

However, since the contents have high viscosity and the discharge valve is for high viscosity contents and it is difficult to discharge the air in the pump, the air in the cylinder is replaced with the contents from the container body. In the first push-down operation, the content is not sucked into the pump, that is, the air in the pump is repeatedly compressed and expanded and is not replaced with the content, and the pump may not perform its function.

The present invention seeks to eliminate such conventional drawbacks.

“Means for Solving the Problems” To achieve the above object, the present invention provides a cylinder 11 having a top wall 16.
A container body 1 having a rising bottom 12 slidably fitted therein and a small diameter cylinder 22 are erected from the upper surface of a top wall 16 of the container body,
A suction valve 23 for high-viscosity contents is provided in the portion of the top wall 16 in the cylinder, and a tubular piston 24 is slidably fitted in the cylinder, and a discharge valve for high-viscosity contents is provided in the tubular piston. A manual pump 2 provided with 21, a push-down discharge head 3 mounted on the upper end of a tubular piston 24 of the manual pump, and a spring equipped to push the push-down discharge head or the tubular piston 24 upward. In the discharge container consisting of 35, as the discharge valve 21, a tapered valve seat 211 facing upward and a valve hole thereof are formed at the lower end inside the tubular piston 24,
A taper valve body 212 is seated on the taper valve seat, a mounting base cylinder 214 is continuously provided on the upper surface of the taper valve body via elastic pieces 213, 213, and the mounting base cylinder is fitted and fixed to the upper portion of the tubular piston 24. And a protruding rod 215 protruding from the lower surface of the taper valve body 212 into the valve hole of the taper valve seat 211.
At the lower end of the tubular piston 24, the protruding rod is connected to the suction valve 23.
The discharge valve forcibly opening means A for forcibly opening the above-mentioned taper valve element 212 by hitting the above is provided.

"Operation" As described above, the container body 1 contains a highly viscous content, and when the content is taken out, the inside of the cylinder 22 is already sucked up from the container body 1 in the pump 2 by the pump 2. When the contents are filled, the push-down discharge head 3 is pushed down against the spring 35 and released, whereby the pump 2 is operated and the contents in the container body 1 are pushed down by the nozzles of the push-down discharge head 3. It is discharged from 31.

That is, when the push-down discharge head 3 is pushed down against the spring 35, the tubular piston 24 is also lowered, and the suction valve 23 is closed and the discharge valve 22 is opened, so that the cylinder 22 is opened.
The contents inside are pressurized (pressurization stroke), and the pressurized contents pass through the discharge valve 22 and are discharged from the nozzle 31 of the downward discharge head 3. When the push-down discharge head 3 is released, the push-down discharge head 3 and the tubular piston 24 are raised by the elasticity of the spring 35, and the suction valve 23 is opened and the discharge valve 22 is closed, so that the inside of the cylinder 22 is closed. Is made negative pressure (negative pressure stroke), and the contents in the container body 1 are sucked into the cylinder 22.
At the same time, the rising bottom 12 rises according to the suction amount.

However, in the pump 2, the air in the cylinder 22 is replaced with the content in the container body 1 by the first pressing of the downward pressing discharge head 3. In this first pressurization stroke, the projection valve 22 may not open due to the high-viscosity contents, but even in such a case, at the end of the pressurization stroke, the taper valve body 21
The protruding rod 215 protruding from 2 abuts on the suction valve 23, and the discharge valve forcibly opening means A operates, the discharge valve 21 is forcibly opened, and the pressurized air in the cylinder 22 is discharged to the outside. It Therefore, in the next negative pressure stroke, negative pressure is appropriately generated in the cylinder 22, and the contents in the container body 1 are reliably sucked into the cylinder 22.

[Examples] The drawings show examples of the present invention.

What is shown is a synthetic resin discharge container.
1 is a container body, 2 is a manual pump provided on the upper end of the container body, 3 is a push-down discharge head mounted on the pump,
Reference numeral 4 denotes a spigot removably fitted to the nozzle 31 of the push-down discharge head, and reference numeral 5 denotes a cap which is detachably screwed onto the upper end of the container body to cover the pump or the push-down discharge head.

In the container body 1, a rising bottom 12 is slidably fitted in a cylindrical body 11 having a top wall 16, an exhaust hole 13 is provided at the center of the rising bottom, and a hole plug 14 is fitted in the exhaust hole. A bottom lid 15 is fitted on the lower end of the tubular body 11. In addition, it is preferable to provide a hole or groove for ventilation in the bottom lid. Further, from the upper surface of the top wall 16, a guide cylinder 17 is provided concentrically with the cylinder 11.
Is protruding.

The pump 2 has a top wall 16 of the container body 1 inside the guide cylinder 17.
A small diameter cylinder 22 is erected concentrically from the upper surface of the cylinder 11, a suction valve 23 is provided on a cylinder wall 16 in the cylinder, and a tubular piston 24 is slidably inserted in the cylinder. A discharge valve 21 having a forced valve opening means A is provided therein.

The suction valve 23 is provided with a valve hole 232 having an upper edge as a valve seat 231 in the center of the top wall 16, and a plate valve 233 is seated on the valve seat, which is shown in FIG. As shown, a fixing ring c is provided around a central valve portion a through a plurality of elastic support pieces b, and the fixing ring c is formed by a ridge 234 provided around the lower end of the cylinder 22. It is locked and the valve portion a is seated on the valve seat 231. The elastic support piece b of the plate valve 233 has a wide width.
You can choose one.

The discharge valve 21 has a taper valve seat 211 facing upward and a valve hole formed at an inner lower end of the tubular piston 24, a taper valve body 212 is seated on the taper valve seat, and a pair of taper valve bodies is provided on an upper surface of the taper valve body. A mounting base cylinder 214 is integrally connected through elastic pieces 213, 213, and the mounting base cylinder is fitted and fixed to the upper part of the tubular piston 24.

The forced valve opening means A of the discharge valve 21 hits the suction valve 23 from the center of the lower surface of the taper valve body 212 at the end of the pressurizing stroke of the tubular piston 24 and forcibly opens the taper valve body 212 against the elastic pieces 213, 213. A protruding rod 215 is provided so as to project.

The push-down discharge head 3 has an inner cylinder 32 which is vertically connected to the nozzle 31 so as to communicate with the nozzle 31. The inner cylinder is fitted and connected to the upper end of the tubular piston 24, and the outer cylinder 33 is hung outside the inner cylinder. The outer cylinder is provided with a retaining means 34 by a ridge at the end of the guide cylinder of the container body 1 and the outer cylinder, and a spring 35 is provided inside the guide cylinder or the outer cylinder to push the outer cylinder. Lower discharge head 3 or tubular piston
Biasing 24 upwards.

The cap 5 is detachably screwed onto the outer periphery of the guide cylinder 17.

With the above-described configuration, the filling of the contents into the container body 1 is performed by removing the bottom lid 15 and the rising bottom 12 and inverting the container body 1 from the bottom side, and after filling, the rising bottom 12 and the bottom lid 15 are filled. And attach. However, when the rising bottom 12 is attached, the exhaust hole 13 is opened to remove air, and after the removal, the exhaust hole is sealed with the hole plug 14.

When taking out the contents, the cap 5 and the spout 4 are removed, and first, the push-down discharge head 3 is pushed down once against the spring 35. As a result, the tubular piston 24 of the pump 2 descends to put the pump 2 into a pressurizing state, and at the end of its descending end, that is, the end of the pressurizing stroke, the forced valve opening means A of the discharge valve 21 is opened.
The barrel rod 215 hits the suction valve 23 and the discharge valve 21 is forcibly opened, and the air in the cylinder 22 is accurately discharged. Next, when the pushing down is released, the pushing force of the spring 35 causes the pushing down ejection head 3 and the tubular piston 24 to rise,
The pump 2 is placed in a negative pressure state, the content in the container body 1 flows into the cylinder 22 through the suction valve 23, and the rising bottom 12 rises in accordance with the amount.

After that, every time the push-down discharge head 3 is pushed down, the pump 2 is operated to eject the contents from the nozzle 31 of the push-down discharge head 3 and the rising bottom 12 rises as described above.

[Advantage of the Invention] According to the present invention, as the discharge valve 21, a taper valve seat 211 facing upward is formed in the lower end of the tubular piston 24 and its valve hole, and the taper valve body 212 is seated on the taper valve seat. Then, a mounting base cylinder 214 is continuously provided on the upper surface of the taper valve body via elastic pieces 213, 213, and the mounting base cylinder is fitted and fixed to the upper portion of the tubular piston 24, and the taper valve body 212 is provided. Of the tapered valve seat 211 is loosely inserted into the valve hole of the tapered valve seat 211 to project a protruding rod 215, and the protruding rod abuts the suction valve 23 at the descending end of the tubular piston 24 to move the tapered valve body 212. Since the discharge valve forcibly opening means A for forcibly opening the valve is provided, the discharge valve 21 can be forcibly opened at the end of the pressurizing stroke by the forcible valve opening means A. Is for high-viscosity contents, the air in the pump 2 is pushed down and the discharge head 3 is pushed once for the first time. It can be discharged to the outside accurately only by the lowering operation, and even if the content has a high viscosity, it can be immediately replaced by suction, and thereafter, the pump function can be surely exerted.

[Brief description of drawings]

FIG. 1 is an embodiment of the present invention. FIG. 1 is a side view of a central longitudinal section, and FIG. 2 is a perspective view of essential members. 1 ... Container body, 2 ... Pump 3 ... Press-down discharge head, 4 ... Port plug 5 ... Cap, 11 ... Rise bottom 21 ... Discharge valve, 22 ... Cylinder 23 ... Suction valve, 24 ...... Tubular piston

Claims (1)

[Scope of utility model registration request] 1. A container main body 1 in which a rising bottom 12 is slidably fitted in a cylindrical body 11 having a top wall 16, and a small diameter cylinder 22 is erected from the upper surface of the top wall 16 of the container main body. A suction valve 23 for high-viscosity contents is provided in the portion of the top wall 16 in the cylinder, and
A tubular piston 24 is slidably inserted into a cylinder, and a manual pump 2 provided with a discharge valve 21 for high-viscosity contents in the tubular piston, and a push-down unit mounted on the upper end of the tubular piston 24 of the manual pump. A discharge container comprising a discharge head 3 and a spring 35 equipped to urge the push-down discharge head or the tubular piston 24 upward.
As the taper valve seat 211 facing upward and the valve hole are formed at the lower end inside the tubular piston 24, the taper valve body 212 is seated on the taper valve seat, and the elastic piece 21 is provided on the upper surface of the taper valve body.
A mounting base cylinder 214 is continuously provided through 3,213, and the mounting base cylinder is fitted and fixed to the upper part of the tubular piston 24. Further, from the lower surface of the taper valve body 212 to the valve hole of the taper valve seat 211. A protruding valve 215 is provided by being loosely inserted into the valve body, and the protruding bar abuts the suction valve 23 at the lower end of the tubular piston 24 to forcefully open the taper valve body 212. Discharge container characterized by having taken A.