JPH09254U - Extruded container products - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an extruded container product having a high sealing property. An extruded container product capable of sealing a content containing a low boiling point solvent, comprising (a) a container containing the content containing a low boiling point solvent, and (b) provided at an open end of the container. The mouth portion 12, the first tubular portion 15 and the second tubular portion 22, which are push pump portions, and (c) the lateral hole 25 and the ring-shaped packing 2 which are the valves 13 for sealing the upper portion of the pump portion.
6 and (d) a spout 3 which is a finger pushing portion for opening and closing the valve 13.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an extruded container product (hereinafter referred to as a container product). More specifically, it relates to a container product capable of taking out a certain amount of viscous contents.

[0002]

[Prior art]

 As a conventional container product, there is one disclosed in JP-A-56-95870.

This container product stores viscous contents such as cosmetic cream and paste toothpaste in an extruding container, and is designed to be taken out in fixed amounts, and after the contents are taken out, air is removed. A ball valve check valve is attached to the container to prevent backflow into the container.

[0004]

[Problems to be solved by the device]

 However, the conventional ball valve type check valve does not have sufficient sealing performance, so air backflow still occurs, and if the content is a low boiling point solvent, if it is placed in a high temperature environment, the vaporized content leaks. There is a problem of doing.

Therefore, the present invention has an object to provide a container product containing a content containing a low boiling point solvent and having a high sealing property.

[0006]

[Means for Solving the Problems]

 The container product of the present invention comprises (a) a container containing a content containing a low boiling point solvent, (b) an extrusion pump portion provided at an open end of the container, and (c) an upper portion of the pump portion. It is characterized in that it comprises a sealing valve and (d) a finger pushing portion for opening and closing the valve, and can seal the contents containing the low boiling point solvent.

[0007]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described.

FIG. 1 is a sectional view of a valve of a container product according to an embodiment of the present invention, FIG. 2 is a sectional view showing an opened state of the valve, and FIG. 3 is a container product according to an embodiment of the present invention. And FIG. 4 is a sectional view showing another example of the movable bottom portion.

First, the overall configuration of the container product 1 of the present invention will be described with reference to FIG. Reference numeral 2 is a cylindrical and rigid container, 3 is a spout as a finger pressing portion, and 4 is a movable bottom portion. A valve 13 described later is incorporated inside the spout 3. The movable bottom portion 4 closely slides on the inner surface of the container 2 and serves as a piston, and is made of a resin, and a claw 6 for restricting the bottom member 5 so that the bottom member 5 is movable only in the pushing direction. A spring 7 for urging the claw 6 in the expanding direction. The movable bottom portion 4 enters the inside of the container 2 if the inside of the container 2 has a negative pressure, but the claw 6 bites into the inner wall of the container 2 in the backward direction so as not to move. The movable bottom portion 4 is not limited to the above, as long as it has a function of entering the container 2 by a negative pressure and being incapable of retracting. Therefore, as shown in FIG. 4, a plate spring 8 in which the claw and the spring are integrated may be used to restrict the forward and backward movement.

A tapered shoulder portion 11 and a tubular mouth portion 12 are formed at the upper end of the container 2.

Next, the structure of the valve 13 incorporated in the spout 3 will be described with reference to FIG. In this embodiment, the ball valve type check valve 14 is incorporated in series in addition to the valve 13, so the check valve 14 will be described first.

A first tubular portion 15 is inserted in the mouth portion 12. A flange 16 is formed in the middle of the first tubular portion 15, and a passage 17 is formed inside. The mouth portion 12 constitutes a cylinder of the extrusion pump portion in the scope of claims for utility model registration, and the first tubular portion 15 and a second tubular portion 22 described later constitute a piston of the extrusion pump portion. A valve seat 18 is formed at the upper end of the first tubular portion 15, and a ball 19 is placed on the valve seat 18. The valve seat 18 and the ball 19 form a ball valve check valve 14. A first compression spring 21 is interposed between the collar 16 and a spring seat 20 formed in the mouth portion 12.

Next, the valve 13 will be described. A base end portion of the second tubular portion 22 is inserted around the upper end of the first tubular portion 15. The inner circumference of the base end portion of the second tubular portion 22 forms a valve chamber 23 that accommodates the ball 19. A passage 24 extends from the valve chamber 23 in the tip direction, and the tip surface is closed. A lateral hole 25 is formed at the tip of the second tubular portion 22. Reference numeral 26 denotes a ring-shaped packing, which is made of elastic rubber or the like. The ring-shaped packing 26 is fitted on the outer periphery of the tip end portion of the second tubular portion 22 to seal the lateral hole 25. On the other hand, a space for accommodating the first cylinder portion 15 and the second cylinder portion 22 is formed inside the spout 3, and the space communicates with the nozzle 31 1. A shoulder portion 27 is formed at a portion of the spout 3 that faces the tip portion of the second tubular portion 22. A spring seat 28 is formed inside the spout 3, and a second compression spring 29 is interposed between the spring seat 28 and the spring seat 20 of the mouth 12. The compression force of the second compression spring 29 must be weaker than that of the first compression spring 21. Incidentally, reference numeral 30 is a protrusion for preventing coming off.

Next, the operation of the valve 13 in this embodiment will be described.

As shown in FIG. 2, when the spout 3 is pushed in, the first tubular portion 15 and the second tubular portion 22 are pushed down, and at the same time, the shoulder 27 of the spout 3 flips the ring-shaped packing 26 to form a lateral hole. 25 opens. During jetting, the ring-shaped packing 26 is in close contact with the shoulder 27 of the spout 3 and the outer peripheral surface of the second tubular portion 22 immediately below the lateral hole 25, and the contents leak below the lateral hole 25. Prevent. As a result, the content passes through the passage 17 of the first tubular portion 15, pushes up the ball 19, passes through the passage 24 → the lateral hole 25 → the nozzle 31, and is taken out to the outside.

Excluding the force to push the spout 3, the elastic force of the second compression spring 29 restores the spout 3 to its original state, and the ring-shaped packing 26 also returns to its original state, so that the lateral hole 25 Will be blocked instantly. Therefore, air does not flow into the container 2. At this time, the inside of the container 2 has a negative pressure, but since the movable bottom portion 4 enters the inside of the container 2, the negative pressure is released.

Further, in a non-operated state in which the spout 3 is not pushed in, the ring-shaped packing 26 closes the lateral hole 25 by its elastic force, so that the sealing property is very high. Therefore, even if the content containing the low boiling point solvent vaporizes, it does not leak to the outside.

[0018]

[Effect of the invention]

 In the present invention, a certain amount of the content can be taken out by pressing the finger pushing portion with a finger or the like and artificially opening the valve that seals the upper portion of the pump portion. With the exception of the pushing force, the valve will not open due to the internal pressure inside the container, so the container can be resealed. As a result, in the present invention, since the sealing property is very high, the intrusion of air and the leakage of the contents are effectively prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a valve of a container product according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an open state of the valve of FIG. 1;

FIG. 3 is a partial cross-sectional view of the container product according to the embodiment of the present invention.

FIG. 4 is a sectional view showing another example of a movable bottom part.

[Explanation of symbols]

 1 Container Product 2 Container 3 Spout 4 Movable Bottom 13 Valve 14 Ball Valve Check Valve 25 Side Hole 26 Ring Packing 27 Shoulder

Claims (1)

[Utility model registration claims] 1. A container for accommodating a content containing a low boiling point solvent, (b) an extrusion pump portion provided at an open end of the container, and (c) an upper portion of the pump portion is hermetically sealed. A valve and (d) a finger pressing portion for opening and closing the valve,
Extrusion container product that can seal contents containing low boiling point solvent.