JPH05319466A - Spray container - Google Patents

Abstract

PURPOSE:To provide a finger press pump type spray container which can be stably placed and is prevented from dispersing the perfume of content carelessly when it is not used. CONSTITUTION:A container main body 2 is provided with a free piston 5 inside and a finger press type pump 7 on top, and a dip tube 8 penetrating through the center of the container main body is connected to the lower end of the pump 7. The content filled in a lower chamber 4 beneath the free piston 5 of the main body 2 is sprayed by the pump 7.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a discharge container. More specifically, the present invention relates to a discharge container capable of discharging contents in all directions by pump operation using a push button and stably mounting the contents.

[0002]

2. Description of the Related Art Conventionally, as a discharge container equipped with a finger-pushing pump for discharging the contents near the top of the container, a double container type having an crushable inner container and a discharge container each time the contents are discharged. There is known a discharge container such as a container whose bottom is raised so that the volume for storing the content decreases as the content is discharged.

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

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

[0005]

In the above-mentioned conventional example 1, the bag body is crushed from below so that the contents can be sucked up by the pump at all times, and the finally 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 body generally cannot be crushed until the contents inside thereof are completely consumed, the contents are often wasted.

In Conventional Example 2 as well, as in Conventional Example 1, since the contents always exist in the upper part of the container, the center of gravity is high, and the container can be placed only in an extremely unstable state. Furthermore, no matter how much the bottom can slide upwards while retaining the liquid-tight seal, a small amount of content adheres to the exposed inner wall of the container below the bottom. That is, the inner wall of the container is wet. As a result, the fragrance component of the contents volatilizes, and the user may feel that the contents are wet, or the fragrance may spread around all the time, which may make people unpleasant.

The present invention has been made in order to solve the above problems, it can be placed in a stable state, and when not in use, the aroma of the contents can be inadvertently diffused to the surroundings. Furthermore, it is an object of the present invention to provide a discharge container capable of stably discharging the contents even in an upside down or sideways (horizontal direction or the like) state.

[0008]

The discharge container of 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, a push button having a discharge port that communicates with the pump mechanism for pushing and operating the pump mechanism, a dip tube that communicates with the pump mechanism and extends in the container, and is penetrated by the dip tube. At the same time, the container is composed of an upper chamber and a lower chamber for filling the contents with a liquid-tight partition, and a free piston that can slide at least downward. The pump mechanism includes a cylinder having a check valve at its suction portion, a piston having a check valve at its discharge portion and slidable in the cylinder, and a piston for pushing the piston away from the suction portion. And a spring member for urging.

[0009]

In the discharge container of the present invention, when the pump mechanism (hereinafter simply referred to as the pump) is operated by pushing the push button, if the content has already been sucked into the pump, it is discharged from the discharge port. To 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 check valve function of the pump will be exerted if the push button is released from the pushed one, and the external air will not flow backward from the discharge port, and conversely by the free piston. The contents of the lower chamber of the compartmentalized container are sucked up through the dip tube.
If it is not discharged by one push operation, it can be discharged easily if the contents are sucked into the pump repeatedly.

In the discharge container of the present invention, the inside of the container is divided into two chambers by the free piston and the lower chamber is filled with the contents. Therefore, the free piston is lowered downward every time the contents are sucked up by the pump. , The lower chamber is always filled with contents and sealed. Therefore, the container has a center of gravity located below, and can be placed in a stable state. Furthermore, even when the container is upside down or laid down,
By operating the push button, the contents can always be stably discharged. Moreover, the contents are substantially sealed and do not diffuse the aroma.

[0011]

The discharge container of 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 to 3 are partial sectional views showing the state 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 is vertically slidable while dividing the interior 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 circumferences of the upper and lower ends thereof and an axial knurled portion 6a formed over the entire circumference between both seal portions 6, whereby the upper portion The chamber 3 and the lower chamber 4 are liquid-tightly separated from each other and can slide in 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. A dip tube 8 extending to the vicinity of the bottom of the main body 2 is connected to the lower end of the pump 7. Dep tube 8
Penetrates through the central portion of the free piston 5, but of course 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 bottom 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 the bottom thereof.
And a pumping piston 11 capable of sliding in the cylinder 10 in the vertical direction, and a pumping piston 11
And a coil spring 12 for urging the pumping piston 11 upwardly. The pumping piston 11 has its peripheral edge slidably contacting the inner peripheral surface of the cylinder 10 to liquid-tightly separate the upper part and the lower part. The coil spring 12 is mounted on a spring receiving disk 13 inside the cylinder 10. The spring receiving disk 13 has a through hole 14 formed in the center thereof for allowing the contents to pass therethrough, and is mounted on a locking projection 15 projecting in 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. In this way, the discharge port 17 communicates with the lower portion of the pumping piston 11 in the cylinder 10 through the communication pipe 16. An annular groove 19 is formed on the push button 18 from the lower surface thereof. Then, on the upper surface of the lid 20 that seals the upper end opening of the main body 2, the groove
A cylindrical guide cylinder (21) that can be slidably fitted into the inside (19) is provided in a protruding manner. With this groove 19 and the guide tube 21, the push button
18 is preferably guided when being pushed, 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 the upper end of the communication pipe 16 so as to close the communication passage 23. Thereby, the contents can pass from the pump 7 side to the communication pipe 16, but the discharge port
A non-return valve function that prevents outside air from entering from the 17 side is achieved.

On the other hand, a second ball 24 is also 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. As a result, a check valve function is achieved in which the contents can pass from the dip tube 8 side into the cylinder 10, but the contents and air cannot flow backward from the cylinder 10 side toward the dip tube 8. It

With the above construction, in the main discharge container 1 as shown in FIG. 2, if the push button 18 is pressed, the contents in the cylinder 10 are discharged in the direction of arrow A, and the push button is continuously pressed.
When 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. As described above, since the injection is not performed by an aerosol valve or the like, it is possible to finely adjust the content discharge amount while adjusting the push operation of the push button 18 with fingers. Further, in the main discharge container unit 1, the contents are always in the lower chamber 4, that is, the main body
Since it is filled in the lower part, the lower part becomes heavy and stable, so it can be stood upright even if it is randomly placed during use. Moreover, since the lower chamber 4 is always filled with contents, the contents can be reliably discharged even when the discharge container 1 is operated in any direction such as upside down or horizontal direction. Therefore, it is preferable that the balls 22 and 24 are always urged downward along the axis of the main body 2 by a spring having an appropriate strength. Moreover, the contents are the main body 2 and the free piston 5.
And because it is substantially sealed by the lid 20, etc.,
It does not diffuse the fragrance carelessly.

[0019]

According to the discharge container of the present invention, since the lower part is heavy, it can be stably placed on the floor surface or the table, and carelessly diffuses the aroma of the contents to the surroundings. In addition, the contents can be stably discharged even when the aerosol device is used in any direction such as tipping or horizontal.

[Brief description of drawings]

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

2 is a partial cross-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 the pressing force on the push button of the discharge container of FIG. 1 is released.

[Explanation 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

Claims (2)

[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 inhaling and discharging the pump mechanism, a dip tube communicating with the pump mechanism and extending inside the container, and a dip tube that is penetrated by the dip tube and has an upper chamber inside the container. A discharge container comprising a lower chamber in which a substance is filled and a free piston which can be slid at least downward while being liquid-tightly partitioned. 2. The pump mechanism includes a cylinder having a check valve in its suction portion, a pumping piston having a check valve in its discharge portion and slidable in the cylinder, and the piston for sucking the piston. The discharge container according to claim 1, wherein the discharge container comprises a spring member for urging the member so as to push it away from the portion.