JP2525965Y2 - Creamy container - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a creamy material discharge container.

"Conventional technology" For example, a container disclosed in Japanese Utility Model Laid-Open No. 63-158879 is known. The container is fitted with a sliding bottom wall so as to be able to ascend into the lower part of the body of the lower end opening and has a suction valve at the center of the top wall that closes the upper end of the body, or a valve hole or an outlet hole without a suction valve. And an operating member that has a cylindrical piston at the lower end of the discharge pipe, and that projects a nozzle with a discharge valve from the upper end of the discharge pipe. The cylindrical piston is vertically movably inserted into the cylinder, and is urged upward to be fitted into the cylinder.When the operating member is pressed down, the cream in the body passes through the discharge valve from the nozzle. It is provided so that the sliding bottom wall rises due to the negative pressure in the body due to the rise of the operating member and the negative pressure state is eliminated.

"Problem to be solved by the invention" Since the suction valve or discharge valve used in the cream-like material discharge container is closed by a valve element that elastically closes the valve hole, the opening and closing of the valve tends to be uncertain and aging. However, the elastic restoring force is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cream-like material discharge container in which a valve hole can be reliably opened and closed in response to the vertical movement of an operating member, a discharge amount does not fluctuate each time, and there are few troubles.

[Means for Solving the Problems] The lower end surface of the body 2 is opened, the guide cylinder 4 is erected from the inner periphery of the first inward flange 3 at the upper end of the body, and the sliding bottom wall is inserted into the lower part of the body. 6 in which container 6 is fitted so as to be liftable.
And a cylindrical piston 11 fitted into the upper end of the body 2
A piston member 10 for projecting a second inward flange 12 from the inner surface and erecting a leg cylinder 13 having a small inner diameter at an upper end portion into the guide cylinder 4 from the inner peripheral edge of the flange;
From the upper surface of the bottom plate 17 that engages the outer peripheral portion of the bottom plate 17 to the lower surface of the inner peripheral portion and closes the flange hole 12a, penetrates the base 13 and hermetically contacts the inner surface of the upper end of the base 13 An operating member that erects the discharge pipe 16 so as to be able to move up and down, has an outflow hole 19 at the lower end of the discharge pipe, projects the nozzle 18 from the upper end of the discharge pipe, and urges the nozzle 18 upward by a spring 23 provided separately. 15, the operating member 15 for the container body 1.
By pressing down, the outer peripheral portion of the bottom plate 17 is turned into the inward flange hole 12a.
After moving away from the discharge pipe 16, a downward stepped portion 20 was provided on the outer surface of the discharge pipe 16 so as to be able to push down the piston member 10 via the leg cylinder 13.

[Operation] In the embodiment shown in FIG.
When the body 2 is preliminarily filled with the creamy material, the operating member 15 is pressed down against the bias of the spring 23, and only the operating member 15 is first lowered to lower the bottom plate 17 and the piston. The discharge valve 24 formed by the flange hole 12a of the member second inward flange 12 is opened, and then the downward step portion 20 provided on the outer surface of the discharge pipe 16 pushes down the upper end surface of the barrel 13 so that the piston member 10
Descends. Due to the lowering, the creamy substance in the body 2 is discharged from the inflow hole 19 through the discharge pipe 16 and the nozzle 18. When the depression of the operating member 15 is released, the bottom plate 17 is raised by the spring, and the discharge valve 24 is first closed, and thereafter,
By further raising the bottom plate 17, the piston member 10 returns to the original position. At this time, the inside of the body 2 has a negative pressure, but the inside of the body 2 has a negative pressure, which is eliminated by raising the sliding bottom wall 6.

Example First, the first example shown in FIG. 1 will be described.
Is a container body, the lower end surface of the body 2 is opened, and a guide cylinder 4 having an upper half small inner diameter is erected from the inner peripheral edge of the first inward flange 3 attached to the upper end of the body. Further, the peripheral wall 5 stands from the outer periphery of the first inward flange 3. A well-known sliding bottom wall 6 which rises due to a negative pressure inside the body portion is fitted into a lower portion of the body portion 2, and a closing plate 8 with a through hole 7 is fitted on a lower end surface of the body portion.

A piston member 10 is fitted into the upper end of the body 2. The piston member is connected to a second inward flange 12 from the inner surface of the cylindrical piston 11 that hermetically contacts the outer peripheral surface to the inner wall surface of the leg.
To stand up the leg barrel 13 from the inner peripheral edge of the flange into the guide cylinder 4 described above. In the illustrated example, the upper end of the leg portion has a small inner diameter, and the small inner diameter portion 13a is inserted into the upper half of the guide cylinder 4.

The piston member 10 is mounted below the operating member 15 so as to be vertically movable. The actuating member has a bottom plate 17 at the lower end of a discharge pipe 16 that is inserted into and rises in the base cylinder 13, and the outer peripheral portion of the bottom plate is engaged with the lower surface of the inner peripheral portion of the second inward flange 12 to form a flange hole. 12a Close the lower surface. The discharge pipe is in airtight contact with the inner surface of the small inner diameter portion 13a of the leg cylinder, and further projects above the guide cylinder 4, and projects the nozzle 18 from its upper end. An outflow hole 19 is formed in the tube wall between the small inner diameter portion 13a and the bottom plate 17, and a discharge tube portion outside the guide tube 4 and a gap between the upper end of the leg tube 13 is formed on the outer surface. A downward step 20 is formed.

The downward step 20 is formed by fitting a large-diameter pipe 16b hanging down from the base end of the nozzle 18 to the outer surface of the upper end of the discharge pipe 16 rising from the bottom plate 17 as shown in the drawing. It is formed on the end face. In the illustrated example, the upper wall of the nozzle is extended outward to form a top wall, and the outer peripheral wall 21 is formed from the outer periphery of the top wall and the lower surface of the nozzle.
A reinforcing plate 22 is radially provided between the outer peripheral wall and the upper part of the large-diameter pipe, and a coil spring 23 is interposed between the reinforcing plate and the first inward flange 3 of the container body. Let me. The lower end of the outer peripheral wall 21 is located in the upper part of the container peripheral wall 5,
When the actuating member 15 is pressed down against the spring, first, the discharge valve 24 formed by the bottom plate 17 and the flange hole 12a of the second inward flange is opened, and then the downward stepped portion 20 is moved to the leg cylinder.
By pushing down the upper end surface of 13, the piston member 10
It is attached to descend inside.

A mouth cap 30 is fitted to the tip of the nozzle 18,
Further, the lower part of the peripheral wall of the cap 31 is fitted to the outer surface of the peripheral wall 5 of the container body.

[Effects of the Invention] The present invention has the above-described configuration, and the leg cylinder 13 is erected from the inner peripheral edge of the second inward flange 12 of the piston member fitted into the upper end of the container body 2, and Discharge pipe penetrating cylinder 13
At the lower end, a bottom plate 17 for closing the lower surface of the flange hole 12a of the second inward flange is attached, and the operating member 15 having the discharge pipe is urged upward by a spring 23 to
Since the discharge valve 24 is formed by the a and the bottom plate 17, the discharge valve is opened immediately in response to the depression of the operating member, and the discharge valve is closed in response to the pushing of the operation member 15 by the spring 23. And by setting the restoring force of the spring 23 to an appropriate level, the opening and closing of the discharge valve can be reliably performed in response to the up and down movement of the operating member. Can be stabilized. Further, since the opening of the discharge valve is performed without deforming the bottom plate 17, the bottom plate does not have to be formed so as to be deformable, so that there is no breakage. Also, with the above configuration, first after the discharge valve 24 is opened, the piston member 10 descends,
Discharge valve for creamy substance in body at the same time as piston member descends
Since it flows into the discharge pipe 16 through 24, the inside of the body is not pressurized, so that the actuating member 15 can be pressed down lightly, and the pressurized cream does not jump out of the nozzle. .

In addition, the leg cylinder 13 of the piston member 10 has a small inner diameter at the upper end, and a bottom plate 17 for closing the flange hole 12a by engaging the outer periphery of the bottom plate 17 with the lower surface of the inner periphery of the second inward flange 12 of the piston member. From the upper surface of the lower end, the discharge pipe 16 is passed through the leg cylinder 13 in airtight contact with the inner surface of the upper end portion having the small inner diameter.
Since the outflow hole 19 is formed at the lower end, the discharge pipe of the operating member 15
The sliding surface of the piston member 10 with respect to 16 can be only the small inner diameter portion at the upper end of the leg cylinder 13, and therefore, by minimizing the frictional resistance of the leg cylinder 13 with respect to the discharge pipe 16, the operating member
15 When the piston member 10 is lowered at the time of depression, the opening and closing of the flange hole 12a of the piston member 10 does not become incomplete, and the opening and closing of the flange hole 12a is performed by the bottom plate 17 at the lower end of the discharge pipe 16 so that the outflow occurs. Discharge pipe 16 with hole 19
A gap is formed between the bottom plate and the bottom plate.
At the same time when the outer periphery is attached to and detached from the inner periphery of the inward flange hole 12a, the outlet hole of the discharge pipe 16 is opened and closed, and the nozzle 18
Out of liquid can be improved.

[Brief description of the drawings]

 FIG. 1 is a longitudinal sectional view of the container of the present invention. 5 Cap body, 14 Measuring cup, 17 Auxiliary lid

Claims (1)

(57) [Scope of request for utility model registration] 1. A lower end surface of a body portion is opened, a guide cylinder is erected from an inner peripheral edge of a first inward flange at an upper end of a body portion, and a sliding bottom wall can be raised into a lower portion of the body portion. And a second inward flange 12 protrudes from the inner surface of the cylindrical piston 11 fitted into the upper end of the body portion 2 and into the guide cylinder 4 from the inner peripheral edge of the flange. From the upper surface of the bottom plate 17 that engages the outer peripheral portion of the bottom plate 17 with the lower surface of the inner peripheral portion of the second inward flange 12 and closes the flange hole 12a, The discharge pipe 16 penetrates through the base 13 and airtightly comes into contact with the inner surface of the upper end of the base 13 so as to be able to move up and down, and an outlet 19 is formed in the lower end of the discharge pipe. The nozzle 18 protrudes from the upper end of the discharge pipe, and the operating member 15 is urged upward by a spring 23 provided separately. After the outer peripheral portion of the bottom plate 17 is separated from the inward flange hole 12a by pushing down the operating member 15 with respect to the container body 1, the piston member 10 can be pushed down through the leg tube 13 to the outer surface of the discharge pipe 16 so as to be pushed down. A cream discharge container provided with a downward step portion 20.