JPH0417247Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an inverted-only liquid injection container in which the liquid inside can be ejected only when the container is inverted.

``Prior Art'' Since liquids such as lotions are used in extremely small amounts, the pouring hole at the mouth of the container is made into a small hole, and small amounts are poured out by shaking the container.

``Problems to be Solved by the Invention'' As mentioned above, the container for lotion etc. has to be shaken out to pour it out, which is cumbersome to operate, and since the pouring hole is small, it is difficult to pour out and is easily clogged. Therefore,
A method of pouring out the liquid content using a manual pump or the like may be considered, but in this case, the liquid content will be poured out if the pump is operated.

This invention has a structure that allows the content liquid to be injected with a one-touch operation of pushing in the bottom of the container only when the container is inverted with the mouth facing downward. There is a liquid injection container to obtain.

"Means for solving the problem" The liquid injection container of the present invention includes a liquid storage container body 1,
It is internally fixed to the mouth and neck part 8 of this container body 1, and the body part 9
A small cup-shaped cylinder 2 having a hole 10 for liquid inflow and intake, a guide cylinder member 3 externally fitted and fixed to the mouth and neck part 8 and extending upward, and this guide cylinder member 3.
It has an inverted cup-shaped large-diameter cylinder 11 that is fitted into the guide cylinder member 3 so as to be pushed downward, and a small-diameter nozzle 12 projects upwardly from the top wall of the large-diameter cylinder 11. Nozzle member 4
The upper part is a valve stem 14 whose upper end is a discharge valve 13 that closes the base of the nozzle 12, and the lower part is a small-diameter piston 15 inscribed in the small-diameter cylinder 2 to form a storage chamber A in the small-diameter cylinder 2. a sliding member 5 formed in a cylindrical portion 16 forming a cylindrical portion 16 and vertically provided with a groove 17 communicating with the inside of the cylindrical portion 16 on the upper outer surface; and a large-diameter piston 1 inscribed in the large-diameter cylinder 11.
8, which is fitted onto the upper outer surface of the sliding member 5 and forms a storage chamber B that communicates with the storage chamber A through a groove 17 in the large diameter cylinder 11; and the small diameter cylinder 2. and a return spring 7 which is housed inside and constantly pushes up the integral body of the sliding member 5 and piston member 6, and when injecting, the container body 1 is turned upside down and the nozzle is moved against the return spring 7. It is characterized by being pushed into the member 4 side.

"Function" The container of the present invention is normally placed in an upright position, and the liquid content is stored at a position that does not reach the liquid inflow/intake hole 10, for example, near line A. Even if the nozzle member 4 is pushed down, the liquid content will not be ejected.

When injecting the contents, invert the container as shown in each figure. Then, the liquid inside the container body 1 flows from the liquid inflow/intake hole 10 to the storage chamber A and the channel 1.
7. Flows into storage chamber B. In this state, the integral body of the container body 1, small-diameter cylinder 2, and guide tube member 3 is pushed down against the return spring 7 through the bottom of the container body 1.

Then, first, the liquid inflow/intake hole 10 of the small diameter cylinder 2 is blocked by the cylindrical part 16 of the sliding member 5, so that the storage chamber A and the groove 17 are closed, and the storage chamber B is disconnected from the inside of the container body 1. These stored liquids are pressurized because the internal volume of the storage chamber is reduced by the pushing.
Then, the liquid on the storage chamber A side tries to push down the sliding member 5 through the small diameter piston 15, and the liquid on the storage chamber B side tries to push up the sliding member 5 through the large diameter piston 18, but Since the diameter piston 18 has a larger pressure receiving area for the pressurized liquid than the small diameter piston 15, if the push-up force through the large-diameter piston 18 due to pushing exceeds the push-down force added with the force of the return spring 7, sliding will occur. The moving member 5 is pushed upward to open the discharge valve 13 as shown in FIG. 2, and the pressurized liquid in the storage chamber B is injected downward from the nozzle 12 to the outside. Therefore,
If the palm is opened at the mouth of the nozzle 12, the content liquid can be received on the palm. This liquid injection can be carried out by stopping the pushing or by liquid injection.
This continues until the pushing up force becomes weaker than the pushing down force on the return spring 7 side.

When the discharge valve 13 opens, outside air is sucked into the container body 1 as shown by the arrow in FIG. 3, the negative pressure inside the container body 1 caused by liquid injection is eliminated, and each part returns to its original state. .

``Example'' The examples shown in Figures 1 to 3 are the same as those described in the ``Means for solving problems'' mentioned above, and in order to avoid duplication, the above-mentioned parts will be explained below. Explanation will be omitted, and only matters not mentioned above will be explained.

The container body 1 has a relatively slender shape, the mouth and neck part 8 is somewhat reduced in diameter, and a thread 19 is formed on its outer surface.

The small-diameter cylinder 2 has an outward flange 20 on the upper outer periphery suspended from the mouth and neck of the container body 1 through a packing 21, and is installed inside the container body 1 from the mouth and neck 8, and also has a hole for liquid inflow and intake. Several numbers 10 are provided at intervals in the circumferential direction.

The guide cylinder member 3 is fixed to the outer surface of the mouth and neck part 8 by screwing a thread formed on the inner periphery of the lower part to the thread 19. It is held down and fixed via a facing flange 20, and the diameter of the upper half of the upper part extending upward is reduced to form a downward step in the middle part of the upper part.

The nozzle member 4 is configured such that an outward flange 22 on the outer periphery of the lower end of the large diameter cylinder 11 is engaged with a downward step of the guide cylinder member 3 to prevent it from coming off.
In addition, a corner 23 is provided at the base of the nozzle 12 so that the discharge valve 1
In addition, blocks 24, 24 are vertically disposed from the top wall of the large-diameter cylinder 11 to adjust the volume of the storage chamber B.

In the sliding member 15, the discharge valve 13 has a triangular cross-sectional shape, through-holes 25 are formed at intervals in the circumferential direction in the upper part of the cylindrical part 16, and the groove passages 17 are communicated with the inside of the cylindrical part 16, and the lower end of the cylindrical part 16 is connected to the sliding member 15. The small-diameter piston 15 has a skirt shape and is disposed at a position where it does not block the liquid inlet/intake holes 10 of the small-diameter cylinder 2 in the normal state shown in FIG. Note that the rod member 26 inserted into the cylindrical portion 16 is for adjusting the volume of the storage chamber A.

The large-diameter piston 18 of the piston member 6 is formed of an elastic circumferential wall body having an arc-shaped cross section and protrudes outward from the upper end outer surface of a cylinder 27 that is fitted and fixed to the upper outer surface of the sliding member 5. There is also a skirt-shaped intake passage valve 2 inscribed in the upper part of the small-diameter cylinder 2 at the lower end of the cylindrical body 27.
There are 8.

The return spring 7 is coil-shaped and is inserted between the rod member 26 and the small diameter piston 15 at the lower end of the sliding member 5.

Reference numeral 29 denotes an outer cylinder, which has a spout hole 30 communicating with the nozzle 12 in the center of the upper base, and a cylinder 31 that fits on the outer surface of the nozzle 12 is vertically disposed from the back side of the upper base, so that the guide cylinder member 3 can be connected to the container body. 1 is fitted on the outer surface of the body, and when pouring, as shown in Figure b, this outer cylinder 2
8 can be handled with one hand, and the thumb or forefinger of the gripped hand is placed on the bottom of the container body 1 and the bottom is pushed down, making it possible to handle it in the same way as a so-called knob-type pen, making the operation easy and convenient.

The container of the present invention can also spray the contents in a mist form by attaching a known spray head 32 to the nozzle member 4, as shown by the chain line in FIG. In this case as well, by providing the cylindrical portion 33 like the outer cylinder 29, the jetting operation becomes easy and convenient.

In the above, each part except the return spring 7 is molded and manufactured from synthetic resin material.

``Effect of the invention'' The container of the invention uses a manual pump, but it can only be injected when the container is inverted with the intention of dispensing. Even if the bottom part or the nozzle member 4 is pushed in, the liquid content will not be ejected, so it is safe to handle.

Further, the operation is simple as it only requires one push of the bottom of the container body 1, and in particular, when the outer cylinder 29 is attached, it becomes a one-handed operation similar to that of a knob-type pen, making handling even more convenient. Furthermore, by replacing the outer cylinder 29 and the spray head 32, the liquid content can be ejected in both a water column and a mist form, and when the spray head 32 is attached, it can be handled in the same way as the outer cylinder 29, making it very convenient.

[Brief explanation of the drawing]

Figures 1a, b to 3 show an embodiment of the liquid injection container of the present invention in an inverted dispensing state, where Figure 1a is a vertical cross-sectional view of the main parts during normal operation, and Figure 1b is a general outline. The reduced drawings, FIGS. 2 and 3, are longitudinal sectional views of the main parts during injection and intake with the valve open. 1...Container body, 2...Small diameter cylinder, 3...
Guide tube member, 4... nozzle member, 5... sliding member, 6... piston member, 7... return spring.

Claims (1)

[Scope of utility model registration request] A liquid storage container body 1, a small cup-shaped cylinder 2 which is internally fixed to the mouth and neck part 8 of this container body 1 and has a liquid inflow and intake hole 10 in the body part 9, Guide tube member 3 that is externally fixed and extends upward
It has an inverted cup-shaped large-diameter cylinder 11 that is fitted into the guide cylinder member 3 so as to be pushed downward, and a small-diameter nozzle 12 projects upwardly from the top wall of the large-diameter cylinder 11. Nozzle member 14
The upper part is a valve stem 14 whose upper end is a discharge valve 13 that closes the base of the nozzle 12, and the lower part is a small-diameter piston 15 inscribed in the small-diameter cylinder 2 to form a storage chamber A in the small-diameter cylinder 2. a sliding member 5 formed in a cylindrical portion 16 forming a cylindrical portion 16 and vertically provided with a groove 17 communicating with the inside of the cylindrical portion 16 on the upper outer surface; and a large-diameter piston 1 inscribed in the large-diameter cylinder 11.
8, which is fitted onto the upper outer surface of the sliding member 5 and forms a storage chamber B that communicates with the storage chamber A through a groove 17 in the large diameter cylinder 11; and the small diameter cylinder 2. and a return spring 7 which is housed inside and constantly pushes up the integral body of the sliding member 5 and piston member 6, and when injecting, the container body 1 is turned upside down and the nozzle is moved against the return spring 7. A liquid injection container characterized by being pushed into the member 4 side.