JP2961127B2 - Discharge container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge container. More specifically, the present invention relates to a discharge container that can discharge contents in all directions by a pump operation using a push button and that can be stably placed.

[0002]

2. Description of the Related Art Conventionally, as a discharge container provided with a finger push pump for discharging the contents near the top of the container, a double container type having an easily crushable internal container or a discharge container each time the contents are discharged are described. 2. Description of the Related Art There is known a discharge container in which a volume for accommodating a content is reduced as the content is discharged, such as a container whose bottom is raised.

The former is disclosed, for example, in Japanese Patent Publication No. 55-3232. In this case, a highly flexible inner container (hereinafter, referred to as a bag) is accommodated in a rigid outer container, and the inside of the bag is filled with contents. Then, the bag is crushed with the discharge of the contents by the pump at the top of the container, and the inside of the bag is always filled with the contents (hereinafter referred to as Conventional Example 1).

The latter is described, for example, in Japanese Patent Publication No. 3-296.
No. 78 discloses this. This is configured such that the container is single-layered but its bottom can slide upward along the container axis. The bottom is prevented from sliding downward by a claw or the like that can be locked to the inner wall of the container, and further seals the inside and outside of the container in a liquid-tight manner (hereinafter referred to as Conventional Example 2).

[0005]

In the prior art 1, the bag is crushed from below so that the contents can always be sucked up by the pump, so that the remaining contents are located immediately below the pump. Has been. Therefore, the center of gravity of the discharge container always exists above and is extremely unstable when placed. Further, since the bag cannot generally be crushed until the contents inside the bag are completely consumed, the contents are often wasted.

In the second conventional example, as in the first conventional example, the contents are always present on the upper portion of the container, so that the position of the center of gravity is high and the container can be placed only in an extremely unstable state. Further, no matter how the bottom can slide upwards while maintaining a liquid-tight seal, a small amount of content adheres to the exposed container inner wall below the bottom. That is, the inner wall of the container is wet. As a result, the fragrance component of the content is volatilized, and the user may feel that the content is wet, or the fragrance may always spread to the surroundings, and on the contrary, it may cause discomfort to people.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can be placed in a stable state. When not in use, the fragrance of the contents can be inadvertently diffused to the surroundings. It is another object of the present invention to provide a discharge container capable of stably discharging contents even when the container is turned upside down or turned sideways (horizontal direction or the like).

[0008]

A discharge container according to the present invention has a bottomed cylindrical container and a check valve function provided at the top of the container for transferring the contents of the container to the outside. A pump mechanism, having a discharge port communicating with the pump mechanism, a push button for pushing the pump mechanism, a dip tube communicating with the pump mechanism and extending into the container, and penetrated by the dip tube. Rutotomoni consists of a free piston which can slide at least in a downward direction while partitioned fluid-tightly to the lower chamber for the vessel upper chamber and the contents are filled, the free piston, the outer circumference of the upper and lower ends thereof To
Around the formed seal and the entire circumference between both seals
And an axially knurled portion formed across
Ing Te. The pump mechanism includes a cylinder provided with a check valve at a suction portion thereof, a piston provided with a check valve at a discharge portion thereof, and a piston slidable in the cylinder, and pushing the piston away from the suction portion. And a spring member for biasing.

[0009]

In the discharge container of the present invention, when a pump mechanism (hereinafter simply referred to as a pump) is operated by pressing its push button, if the contents are already sucked into the pump, this is discharged from the discharge port. I do. At this time, since the check valve function of the pump is performed, the contents in the pump do not return to the container. If the contents have not yet been sucked into the pump, the pump will function as a check valve if released from the pushed push button. The contents of the lower chamber of the compartmented container are sucked up through the dip tube.
When the pump is not discharged by one push operation, the contents are easily discharged by sucking the contents into the pump several times.

In the discharge container of the present invention, the interior of the container is divided into upper and lower chambers by a free piston, and the lower chamber is filled with the contents. Therefore, each time the contents are sucked up by the pump, the free piston is lowered. The lower chamber is always filled with the contents and sealed. Therefore, the container has a center of gravity below and can be placed in a stable state. Even when the container is upside down or lying down,
By operating the push button, the contents can always be stably discharged. Moreover, the contents are substantially sealed and do not diffuse fragrance.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A discharge container according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view showing an embodiment of the discharge container of the present invention, and FIGS. 2 and 3 are partial sectional views showing states when the discharge container of FIG. 1 is operated.

In FIG. 1, reference numeral 1 denotes a discharge container, which accommodates a free piston 5 which slidably moves vertically while dividing the inside of a container body 2 into an upper chamber 3 and a lower chamber 4.
The free piston 5 has a seal portion 6 formed on the outer periphery of each of the upper and lower ends thereof, and an axial knurled portion 6a formed over the entire periphery between the seal portions 6. The chamber 3 and the lower chamber 4 can be separated from each other in a liquid-tight manner, and can slide inside the main body 2 without resistance.
The lower chamber 4 is filled with contents, and the upper chamber 3 communicates with the external space through pores or gaps.

A pump 7 is fitted on the upper end of the main body 2. The lower end of the pump 7 is connected to a dip tube 8 extending to near the bottom of the main body 2. Dep tube 8
Penetrates through the central portion of the free piston 5, but the free piston 5 also liquid-tightly separates the upper chamber 3 and the lower chamber 4 between the inner peripheral surface of the main body 2 and the dip tube 8. Is in sliding contact with Since the lower surface of the free piston 5 has the same curvature as the lower surface of the main body 2, the contents can be used up to the end without waste. The pump 7 has a suction port 9 for sucking the contents at its bottom.
, A pumping piston 11 that can slide up and down in the cylinder 10, and a pumping piston 11
And a coil spring 12 for urging the pumping piston 11 upward. The peripheral edge of the pumping piston 11 is in sliding contact with the inner peripheral surface of the cylinder 10 to separate the upper and lower portions of the pumping piston 11 in a liquid-tight manner. The coil spring 12 is mounted on a spring receiving disk 13 in the cylinder 10. The spring receiving disk 13 has a through hole 14 at the center thereof through which the contents can pass, and is mounted on a locking projection 15 protruding from the cylinder 10.

A communication pipe 16 is fixed to the center of the pumping piston 11, and a push button 18 having a discharge port 17 is fixed to the upper end of the communication pipe 16. Thus, the discharge port 17 communicates with the lower part of the pumping piston 11 in the cylinder 10 through the communication pipe 16. An annular groove 19 is formed in the push button 18 from the lower surface thereof. Then, the groove is formed on the upper surface of the lid 20 that seals the upper end opening of the main body 2.
A cylindrical guide tube 21 that can be fitted while sliding inside the projection 19 is protrudingly provided. The push button is formed by this groove 19
18 is suitably guided when the pushing operation is performed, and the pumping piston 11 at the lower end can slide in the cylinder 10 without any trouble.

A first ball 22 is mounted on an upper end of the communication pipe 16 so as to close the communication path 23. Thereby, the contents can pass through the communication pipe 16 from the pump 7 side.
A check valve function that prevents outside air from flowing in from the 17 side is achieved.

On the other hand, a second ball 24 is mounted on the upper portion of the suction port 9 formed at the bottom of the cylinder 10 so as to close the suction port 9. Accordingly, a check valve function is provided in which the contents can pass through the dip tube 8 into the cylinder 10, but the contents and air cannot flow back toward the dip tube 8 from the cylinder 10. You.

With the above construction, as shown in FIG. 2, in the present discharge container 1, when the push button 18 is pressed, the contents in the cylinder 10 are discharged in the direction of arrow A, and subsequently the push button 18 is pressed.
When the button 18 is released, the contents in the lower chamber 4 (see FIG. 1) are sucked into the cylinder 10 in the direction of arrow B as shown in FIG. Since the injection is not performed by the aerosol valve or the like, the discharge amount of the contents can be finely adjusted while adjusting the pressing operation of the push button 18 by the finger. The present discharge container 1, always contents are lower chamber 4, i.e. to be filled in the lower portion of the main body 2, to stand stable even with carelessly placed in use since the lower is made stable heavy I can put it. Moreover, since the lower chamber 4 is always filled with the contents, the contents can be reliably discharged even if the discharge container 1 is operated in any direction, such as upside down or horizontal. For this purpose, it is preferable that the two balls 22, 24 are always urged downward along the axis of the main body 2 by a spring having an appropriate strength. Moreover, the contents are substantially sealed by the main body 2, the free piston 5, the lid 20, and the like, so that the fragrance is not inadvertently diffused.

[0019]

According to the discharge container of the present invention, since the lower portion is heavy, it can be stably placed on a floor or a table, and the fragrance of the contents is inadvertently diffused to the surroundings. In addition, the contents can be stably discharged even if the aerosol device is used in all directions such as falling and horizontal.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a discharge container of the present invention.

FIG. 2 is a partial sectional view showing a state when a push button of the discharge container of FIG. 1 is pressed.

FIG. 3 is a partial cross-sectional view showing a state in which a pressing force on a push button of the discharge container of FIG. 1 is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Discharge container 2 Main body 3 Upper chamber 4 Lower chamber 5 Free piston 7 Pump 8 Dip tube 9 Suction port 10 Cylinder 11 Pumping piston 12 Coil spring 16 Communication pipe 17 Discharge port 18 Push button 22 First ball 24 Second ball

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65D 83/76 B65D 47/34

Claims (2)

(57) [Claims] 1. A bottomed cylindrical container, a pump mechanism provided at the top of the container and having a check valve function for transferring the contents of the container to the outside, and a discharge mechanism communicating with the pump mechanism. A push button having an outlet for operating the pump mechanism for inhaling and discharging, a dip tube communicating with the pump mechanism and extending into the container, being penetrated by the dip tube, and having an upper chamber and contents inside the container; things Ri is Do and a free piston which can slide at least in a downward direction while compartment in a liquid-tight manner to the lower chamber for being filled, the free piston, respectively form on the outer periphery of the upper and lower ends thereof
The seal is formed, and the shape is
Dispensing container ing and a knurled portion of the made the axial direction. 2. The pump mechanism according to claim 1, further comprising: a cylinder having a check valve at a suction portion thereof, a pumping piston having a check valve at a discharge portion thereof, and slidable in the cylinder. The discharge container according to claim 1, further comprising a spring member for urging the pressing member away from the portion.