JPH019481Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a pressurized dispensing system that sends pressurized air into the container and pushes the liquid out of the container through the liquid outlet path that communicates inside and outside the container. The present invention relates to a low spout type content liquid outlet device in a type pot, in which the spout opens at a low level outside the container body.

(Prior Art) This type of device is known from, for example, Japanese Unexamined Utility Model Publications No. 56-125132 and No. 56-128139. In order to cope with the fact that the outer tube, which guides the liquid drawn from the container to a lower level outside the container, is long and unsightly and is vulnerable to external forces, the outer tube is covered with a pipe cover. It is designed to be covered to improve the appearance and protect it. In addition, once the content liquid is drawn out through the content liquid outlet channel, the content liquid continues to flow out due to the siphon phenomenon, and the so-called splash phenomenon occurs in which the content liquid is forced out under pressure and is ejected forcefully. In order to prevent this, an expansion chamber or a ventilation section with the outside is provided between the inner tube and the outer tube of the liquid content outlet path.

(Problem to be solved by the invention) However, because of the above-mentioned structure, the structure of the outer tube part of the vessel tends to be complicated with many parts, which together with the increase in the number of assembly work increases the cost. It is also a cause of high

Although Japanese Utility Model Application Publication No. 56-128139 discloses a state in which the outer pipe of the vessel body is integrally formed with the pipe cover, it does not have a form that can be molded. Therefore, the structure has not been substantially simplified.

In addition, in all of these conventional types, the inner tube extends to one side of the upper part of the container and opens downward, and the liquid flowing out from this opening is transferred to the outer tube facing the opening with a gap. It has a structure that allows it to be received at the upper end, and there is a risk that the liquid will overflow from the gap when it flows into the outer tube. Since there is a limit and the expansion chamber cannot be formed very large, the splash prevention effect is not yet sufficient.

Therefore, the present invention is a low spout type liquid discharge path device for a pressurized pouring pot that can solve the above-mentioned problems by cleverly integrating the outer tube of the liquid contents discharge path and the pipe cover. The purpose is to provide the following.

(Means for solving the problem) In order to achieve the above-mentioned purpose, the present invention
In pressurized dispensing type pots, which send pressurized air into the container and push out the contents to the outside of the container through a liquid discharge path that communicates inside and outside the container, the outer tube of the liquid discharge path is connected to the rear and lower side. At least one side of the pipe cover is open, and the part of the tube outside the vessel body, which is integrally molded in a bent shape along the front end and upper end of the pipe cover, has an open opening opening upward and is located below the pipe cover. It has a cylindrical connection port protruding inward into which the inner tube of the container is fitted, and the open port is closed by a top plate to form an expansion chamber, and a base of the connection port is provided between the open port and the top plate. It is characterized by an air vent passage located above and communicating with the outside.

(Function) The outer pipe is integrally formed with a pipe cover which is open at least one of the rear and lower sides, and has a bent shape along the front end and the upper end thereof, and the part along the upper end has an opening opening upward. Because the pipe cover is open, the inside of the pipe cover can be molded from the rear or below when the pipe cover is open, and the inside of the pipe outside the vessel can be molded from the open opening at the upper end. By closing the opening with the top plate, the expansion chamber and the air vent passage leading to the outside are formed at once, resulting in an overall structure with a small number of parts and simple assembly.

In addition, since the expansion chamber can be formed to a size that fits the upper end of the pipe cover, the expansion chamber communicates with the outside through the air vent passage, and this allows the expansion chamber to be sent out under pressure from the inner tube of the vessel. It is possible to sufficiently reduce the pressure and force of the liquid inside and dispense it quietly and safely. Moreover, since the air vent passage is located above the base of the cylindrical connection port that protrudes from the bottom of the expansion chamber, it is far away from the flow of the liquid content flowing into the expansion chamber, and there is no risk of the liquid content spewing out to the outside. It can be prevented.

(Embodiment) An embodiment of the present invention shown in FIGS. 1 to 3 will be described. A container 1 houses a vacuum double bottle 3 in an outer case 2. Bottle 3 is in outer case 2
It is held between a saucer-shaped shoulder member 4 fixed to the upper end and a medium screw 7 that is screwed into the bottom plate 5 fixed to the lower end of the outer case 2.
A content liquid supply/discharge port 8 communicating with the container is provided. A lid 9 is provided on the shoulder member 4 to cover it. The lid body 9 is screwed 10 onto the outer periphery of the shoulder member 4,
It is configured to open and close by attaching and detaching from the shoulder member 4. The lid body 9 is equipped with a manual bellows pump 11 for feeding pressurized air into the container body 1.
The pump 11 is pressed by a pressing plate 12 exposed on the top surface of the lid 9 and sends pressurized air into the bottle 3 through an air supply path 14 formed in the bottom plate 13. Reference numeral 15 designates a check valve that prevents a large amount of liquid from flowing out through the air supply path 14 when the container body 1 falls sideways. 16 is a seal packing between the mouth edge of the air supply/discharge port 8 attached to the lower end of the air supply path 14, and 17 is an intake port of the pump 11, which is opened in the press plate 12. 18
1 is an intake port valve, and 19 is a pump restoring spring.

The liquid content outlet passage 20 that leads out the liquid content that is pressurized and about to be pushed out by the supply of pressurized air from the pump 11 is connected to the liquid container through a portion of the shoulder member 4 that avoids the supply/discharge port 8. It communicates with the inside and outside of the body 1, and is continuously formed from an inlet 21 opening at the inner bottom of the bottle 3 to a spout 22 opening at a lower position outside the vessel 1. Further, a passage expansion part 23 is provided in the middle of the introduction passage 20 outside the container body 1, and an air vent passage 24 is formed above the passage expansion part 23 to avoid the flow of the liquid to be poured out.

The liquid content outlet path 20 includes an inner tube 25 integrally provided on the shoulder member 4 of the container 1 and an outer tube 27 integrally formed with a passage cover 26 attached to the outer surface of the container 1. formed by connecting. This connection is made by connecting the protrusion of the inner tube 25 to one side of the shoulder member 4 and the base of the outer tube 27 using an O-ring 28 attached to the outer periphery of the protrusion of the inner tube 25. The cover 26 is firmly attached to the outer surface of the container body 1 by a force fit 29 with strong elastic resistance. The cover 26 has a rectangular fitting portion between the outer periphery of the protrusion of the inner tube 25 and the base of the outer tube 27, so that the inner tube 2
5 is also prevented from rotating around the protruding part 5, and is stabilized on the outer surface of the container body 1. However, in the case shown in the figure, this is not done, and the engaging pieces 26a formed on the lower left and right sides of the cover 26 are attached to the outer case. By engaging the engagement hole 2a of 2 and making the connection, the cover 26
is in a stable mounting state.

The passage cover 26 is open at the bottom and rear, and the vessel outer tube 27 is bent along its front and upper ends, and a passage expansion part 23 having an upward opening is formed at the upper end. . This results in a molded product that can be easily removed. The expanded portion 23 is formed by expanding the base portion of the outer tube 27 that is connected to the protrusion of the inner tube 25 upwards than the cylindrical connection port 30 with the protrusion of the inner tube 25. An air vent passage 24 is formed between the passage expansion part 23 and the top plate 32 which is forcibly fitted 31 into the top surface of the passage expansion part 23 so as to avoid the liquid flow of the pouring contents through the outlet passage 20 upwardly, and It opens horizontally.

The content liquid pushed out through the outlet passage 20 reaches the passage expansion part 23, and the extrusion pressure is suddenly relieved. Further, even if pressurized air is mixed in, the mixed air is released from the containment by the narrow passage into the content liquid ejection flow, and moreover escapes to the outside through the air vent passage 24. Therefore, after the content liquid passes through the passage expansion part 23, there is no so-called splash phenomenon in which the content liquid is spouted out due to the action of abnormal extrusion pressure or the mixing of pressurized air, and it quietly flows out to the spout 22, preventing it from scattering to the surroundings. Stable liquid injection can be performed without splashing from the liquid receiving container. Furthermore, when the pressing operation of the pump 11 is stopped after dispensing the content liquid, the content liquid in the outlet passage 20, particularly in the vessel outer tube 27, flows out, creating a negative pressure in the outlet passage 20. This negative pressure is immediately eliminated by suction of outside air through the air vent passage 24, and the liquid inside the outlet passage 20 is interrupted between the outer pipe 27 side and the inner pipe 25 side, and the liquid content on the outer pipe 25 side is interrupted. is quickly flowed out, and the liquid inside the inner tube 25 is quickly flowed back into the container body 1. Therefore, not only is it possible to prevent the content liquid from spontaneously flowing out due to the siphon phenomenon, but also it is possible to drain water easily when the dispensing operation is stopped. Furthermore, if infants, etc.
Even if you try to suck out the contents from the air vent passage 2,
It is only necessary to take in air from step 4, and suctioning out of the liquid content is prevented.

FIG. 4 shows a modification, in which the seal packing 16
is rotatably held on the outer periphery of the air supply path 14 of the lid body 9, and when the lid body 9 is rotated to attach or detach, the packing 16
This is to prevent the material from twisting or fraying due to friction between the material and the rim of the supply/discharge port 8.
The packing 16 is attached to the outer periphery of the retaining ring 41,
The end plate 4 has a retaining ring 41 rotatably fitted onto the outer periphery of the air supply passage 14 and is screwed 42 onto the lower end of the air supply passage 14.
It is maintained by 3. A portion of the retaining ring 41 may be cut off, and the retaining ring 41 may be rotatably fitted into an annular groove formed on the outer periphery of the air supply path 14 .

(Effects of the invention) According to the invention, the vessel outer pipe is integrally formed with a pipe cover that is open at least one of the rear and lower sides, and has a bent shape along the front end and the upper end of the pipe cover. Since each section has an opening opening upward, the inside of the pipe cover can be molded from the rear or bottom where the pipe cover is open, and the inside of the pipe outside the vessel body can be molded from the opening at the upper end. can be molded,
Moreover, by closing the opening with the top plate, the expansion chamber and the air vent passage leading to the outside are formed all at once, resulting in a structure with fewer parts and simple assembly, which can be provided easily and at low cost. .

In addition, since the expansion chamber can be formed to a size that fits the upper end of the pipe cover, the expansion chamber communicates with the outside through the air vent passage, and this allows the expansion chamber to be sent out under pressure from the inner tube of the vessel. It is possible to sufficiently reduce the pressure and force of the liquid inside and dispense it quietly and safely. Moreover, since the air vent passage is located above the base of the cylindrical connection port that protrudes from the bottom of the expansion chamber, it is far away from the flow of the liquid content flowing into the expansion chamber, and there is no risk of the liquid content spewing out to the outside. It can be prevented. Therefore, safety in use can be ensured sufficiently.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of an air pot showing one embodiment, Fig. 2 is a partial slope view, Fig. 3 is a partial slope view of another portion, and Fig. 4 is a partial cross-sectional view of a modified example. . 1... Instrument body, 11... Manual bellows pump, 2
0...Content liquid outlet path, 25...Vessel body inner tube, 27
... Vessel external tube, 23 ... Passage expansion part, 24 ...
Air vent passage, 26... Passage cover, 30... Cylindrical connection port, 31... Top plate.

Claims (1)

[Scope of utility model registration request] In pressurized dispensing type pots, which send pressurized air into the container and push out the contents to the outside of the container through a liquid discharge path that communicates inside and outside the container, the outer tube of the liquid discharge path is connected to the rear and lower side. At least one side of the pipe cover is open, and the part of the tube outside the vessel body, which is integrally molded in a bent shape along the front end and upper end of the pipe cover, has an open opening opening upward and is located below the pipe cover. It has a cylindrical connection port protruding inward into which the inner tube of the container is fitted, and the open port is closed by a top plate to form an expansion chamber, and a base of the connection port is provided between the open port and the top plate. 1. A low spout type content liquid outlet device for a pressurized pouring pot, characterized in that an air vent passage located above and communicating with the outside is formed.