JP5008958B2 - Extrusion container - Google Patents

Description

  The present invention relates to a squeeze-type extrusion container, and more particularly to an extrusion container in which excess liquid is drawn back by restoring a body wall after the viscous contents are extruded.

  2. Description of the Related Art Conventionally, an extruded container that is discharged from a dispensing cylinder attached to a container mouth by squeezing a body portion of a container that contains a creamy liquid has been known (see, for example, Patent Document 1).

In the container described in Patent Document 1, the nozzle (21) is attached to the mouth-neck portion (4) of the container body (1), and is provided on the lower end surface of the nozzle (21) and the lower end inner surface of the mouth-neck portion (4). The valve body (11) that can be moved up and down is inserted between the valve seat (5) and the body (2) is pressed, so that the valve body (11) is raised and the valve seat (5 ), The contents pass through the groove (18) provided in the upper rod portion (16) of the valve body (11) and are discharged from the nozzle (21). The part is restored, the inside of the container becomes negative pressure, the valve element (11) is placed on the valve seat (5), and between the lower rod part (14) of the valve element (11) and the valve hole (6) The nozzle (21) and the contents in the mouth and neck (4) are pulled back.
Japanese Patent Application No. 2005-187012

  However, in the above conventional container, a groove is provided in the rod portion of the valve body, and the contents are poured out between the valve seat or the lower end of the nozzle. In addition, there is a problem that the contents cannot be used in the case of contents with high viscosity.

  In order to solve the above problems, the present invention aims to solve the above problem by discharging high-viscosity contents in response to the pressing of the barrel, and when the pressing is released, the barrel wall is restored to restore the remaining of the dispensing cylinder. An object of the present invention is to provide an extrusion container in which an object is pulled back into the container.

In order to solve the above-described problems, the present invention provides an extrusion container having a mouth portion and a flexible body portion as an extrusion container, and a pouring tube and a valve member attached to the mouth portion. A valve seat having a valve hole is provided at the lower end of the inner periphery of the mouth, and a valve member is mounted on the upper surface of the valve seat so as to be movable up and down. The valve member is disposed around the valve body and the valve body. mutually provided continuously rises with a gap, a plurality of regulating plates forming a flow path of the viscous fluid, the slit valve is attached to the upper end, the regulating plate mouth the abutment possible pouring cylinder The valve member is moved upward by pressing the barrel part at the upper end, the viscous content is poured out from the gap, and the valve member is moved downward by restoring the barrel part, so that the valve hole The structure characterized by closing a valve | bulb with a valve body is employ | adopted.

Since a pouring cylinder is attached to the upper end of the mouth of the container, a valve seat having a valve hole is provided in the center of the lower end of the mouth, and the valve seat is attached so that the valve member can move up and down. The valve member can be lifted and lowered by the pressure and the body wall being restored, and the viscous contents in the container can be poured out from the dispensing cylinder through the opening and closing of the valve hole.
In addition, the contents in the pouring cylinder and in the vicinity of the pouring outlet can be pulled back.

When the coil spring is continuously provided on the valve member, the elastic force of the coil spring is added, so that the valve body is stably returned.
In addition, when a slit valve was added to the spout of the spout cylinder, it was possible to cope with changes in internal pressure sensitively and to improve liquid drainage.

  Next, examples of the extrusion container of the present invention will be described with reference to the drawings.

  In FIG. 1, A is a container, B is a valve member mounted in the container mouth part so as to be movable up and down, C is a dispensing cylinder attached to the container mouth part, and D is a cap.

The container A is composed of a mouth part 1 and a shoulder part 2, a body part 3 and a bottom part, the upper end part of the mouth part 1 is reduced in diameter, and an attachment cylinder 5 having an engaging protrusion 4 on the upper end is provided. A screw 6 is screwed on the outer periphery of the part 1.
A valve seat 8 that protrudes inward and has a central portion as a valve hole 7 is provided at the lower end of the inner periphery of the mouth portion 1.
A positioning member 9 is provided at an intermediate step portion of the shoulder portion 2, and the periphery of the shoulder portion 2 continues to the trunk portion 3.

  The container A is molded from a flexible synthetic resin, and the body 3 is deformed by pressing and can be restored.

  As shown in FIGS. 1 and 2, the valve member B includes a plate-like valve body 10 and a plurality of regulating plates 11 disposed around the valve body 10, and is placed on the valve seat 8. It moves up and down along the inner periphery of the mouth 1.

The extraction cylinder C includes a cylindrical body 13 having an upper end as a spout 12 and an attachment portion 14 provided at the lower end of the cylindrical body 13.
The mounting portion 14 includes an inner cylinder 15 corresponding to the lower end portion of the cylindrical body 13, a flange 16, and an outer cylinder 17 that is suspended from the periphery of the flange 16, and the inner cylinder 15 is constant on the inner periphery of the mouth portion 1. Engagement ridges 18 fitted to the engagement ridges 4 of the mounting cylinder 5 of the mouth portion 1 are provided at the lower end of the outer cylinder 17.

The cap D includes a top wall 20 and a side peripheral wall 21, and an engagement ring 22 that presses against the upper end of the cylindrical body 13 is provided on the lower surface of the top wall 20.
A screw 23 that is screwed into a screw 6 that is screwed to the outer periphery of the mouth portion 1 is screwed on the inner periphery of the side peripheral wall 21, and a positioning rib 24 is provided on the lower end portion.

Next, usage modes and operational effects of the extrusion container of the present invention will be described.
The present invention is used as an extrusion container for cosmetics, liquid soaps, medicines, food liquids, etc. having a certain viscosity, and the required contents are stored in the container A.

  In using the extrusion container, as shown in FIG. 2, when the cap D is removed, the extraction tube B is directed to the desired application surface, and the body part 3 is pressed, the valve body 10 is, as shown in FIG. The contents in the container A are moved toward the dispensing cylinder C, and are sent into the dispensing cylinder C through the space between the valve hole 7 and the regulating plate 11 of the valve body 10, and are poured out from the outlet 12. .

When the pressure on the body portion 3 is released, the body wall is restored and the inside of the container A becomes negative pressure, and the contents in the dispensing cylinder C and the mouth portion 1 are pulled back together with the valve body 10, as shown in FIG. .
At that time, the contents in the vicinity of the spout could also be pulled back, and the valve hole was closed, so that air inhalation could be prevented.

  In the above embodiment, the dispensing cylinder is a cylindrical body, and the tip of the cylindrical body 13 is poured out as the spout 12. However, as shown in FIG. 5, the shape of the spout 12 a is the cylindrical body 13. You may make it smaller than the internal diameter of the front-end | tip of.

Next, a second embodiment in which the shape of the dispensing cylinder is changed will be described.
Since the configurations of the container A, the valve member B, and the cap D are the same as those in the previous embodiment, detailed description thereof will be omitted, and description will be made focusing on the dispensing cylinder.

6 and 7, Ca is a dispensing cylinder attached to the mouth portion 1 of the container A.
The dispensing cylinder Ca is composed of a cylindrical body 32 having an upper end projecting inwardly at the upper end and a mounting section 31 at the lower end, a slit valve 33, and a valve presser 34.
The attachment portion 31 has the same configuration as that of the first embodiment, and includes an inner cylinder 15a, a flange 16a, and an outer cylinder 17a.

The slit valve 33 includes an orifice forming wall 36 in which a cross-shaped slit 35 is engraved, and a side peripheral wall 38 in which a flange 37 is provided at the lower end.
The valve retainer 34 includes a cylindrical body 40 having a communication hole 39 in the center and a base 41. The cylindrical body 40 and the base 41 allow the side peripheral wall 38 of the slit valve 33 to be viewed from below the cylindrical body 32. The mounting step portion 30 is pressed against the lower surface.
The tubular body 32 is provided with a protruding ring 42 that is engaged with the lower surface of the base 41.

Next, usage modes and operational effects of this embodiment will be described.
The dispensing cylinder Ca is assembled by inserting the slit valve 33 into the cylindrical body 32 from below and bringing it into contact with the mounting step portion 30, and then inserting the valve presser 34 and pressing the flange 37.

  In use of the extrusion container, as in the first embodiment, when the barrel 3 is pressed with the dispensing cylinder Ca facing the application surface, the valve body 10 is opened, and the contents in the container A are filled with the dispensing cylinder. Then, the pressure is applied to the slit valve 33 through the communication hole 39, the slit 35 is pushed open, and the contents are poured out.

  When the pressure on the body 3 is released, the body wall is restored and the inside of the container A becomes negative pressure, and the contents in the dispensing cylinder Ca are pulled back, but the slit valve 33 can cope with slight changes in the internal pressure. Thus, the slit 35 can be closed to improve the drainage of the liquid, and the effect of eliminating the negative pressure by sucking air from the slit 35 can be obtained.

Next, a description will be given of a third embodiment in which the configuration of the valve member is changed.
Since the configurations of the container A, the dispensing cylinder C, and the cap D are the same as those of the first embodiment when the diameter of the spout 12 is reduced, the description will be omitted and the description will focus on the valve member.

In FIG. 8, Ba is a valve member, which is molded using a synthetic resin.
The valve member Ba is connected to the plate-like valve body 50 placed on the valve seat 8 of the container A mouth portion 1, the coil spring 51 extending from the periphery of the valve body 50, and the upper end of the coil spring 51. The holding ring 52 is made of.
The coil spring 51 is elastically mounted with a constant spring force between the valve body 50 and the pressing ring 52, and the pressing ring 52 is always in pressure contact with the lower end surface of the dispensing cylinder C.

The usage and basic operational effects of the extruded container are the same as in the first embodiment, but the valve member Ba is a coil spring 51, so that the pressure on the trunk is released and the inside of the container becomes negative pressure. When the elastic force of the coil spring 51 is applied, the effect that the return of the valve body 50 becomes stable is obtained.
In other respects, the same effects as those of the first embodiment can be obtained.

In the present invention, a dispensing cylinder is attached to the upper end of the mouth of the container, a valve seat having a valve hole in the center is provided on the inner periphery of the lower end, and the valve member is arranged on the valve seat so as to be movable up and down By pressing the body part and restoring the body wall, the valve member is moved up and down, and the valve hole is opened and closed, so that the viscous contents can be dispensed from the dispensing cylinder.
As a result, it can be widely used as an extrusion container for contents having a certain viscosity, such as cosmetics, liquid soaps, medicines, and foodstuffs.

It is a partial cross section elevation view of the extrusion container of the 1st example of the present invention. It is a cross-sectional elevation view before extraction with the cap removed. It is a section elevation view at the time of trunk wall press. It is a sectional elevation view at the time of body wall restoration. It is a cross-sectional elevation view of a modified embodiment of the dispensing cylinder. It is a section elevation view of the extrusion container of the 2nd example. It is explanatory drawing of an extraction pipe | tube, (a) is a top view, (b) is a cross-sectional elevation view. It is a section elevation view of an extrusion container of the 3rd example.

Explanation of symbols

A container B, Ba valve member C, Ca pouring cylinder D cap 1 mouth part 2 shoulder part 3 trunk part 4 engagement protrusion 5 mounting cylinder 6, 23 screw 7 valve hole 8 valve seat 9 positioning member 10, 50 valve body 11 Restriction plate 12, 12a Spout 13, 32 Cylindrical body 14, 31 Mounting portion 15, 15a Inner cylinder 16, 16a, 37 Flange 17, 17a Outer cylinder 18 Engaging protrusion 20 Top wall 21, 38 Side peripheral wall 22 Engagement Ring 24 Positioning rib 30 Mounting step 33 Slit valve 34 Valve press 35 Slit 36 Orifice forming wall 39 Communication hole 40 Cylindrical body 41 Base 42 Swelling ring 51 Coil spring 52 Holding ring

Claims (1)

An extrusion container having a mouth part and a flexible body part, and a mouthpiece and a valve member mounted on the mouth part,
A valve seat with a valve hole is provided at the inner peripheral lower end of the container,
A valve member is mounted on the upper surface of the valve seat so as to be movable up and down.
The valve member is composed of a plate-shaped valve body and a plurality of restricting plates that are connected to rise around the valve body with a gap therebetween , forming a viscous liquid flow path,
A slit valve is attached to the upper end, and a dispensing cylinder that can contact the regulating plate is provided at the upper end of the mouth .
The valve member is moved upward by pressing the body part, the viscous contents are poured out from the gap, the valve member is moved downward by restoring the body part, and the valve hole is moved by the valve body. An extrusion container that is closed .

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