JP2024050175A - Trigger type liquid jet device - Google Patents

Abstract

To provide a trigger type liquid jet device which can easily jet liquid toward a body of a user.SOLUTION: A trigger type liquid jet device 1 includes: a body 10 which has a flow passage 11 of liquid L; a cylindrical fitting cap 20 which fits the body section 10 to a mouth section 2a of a container body 2; a nozzle 30 which has an injection port 31 connected to the flow passage 11 and is mounted in the body section 10; a trigger 40 which is supported by the body section 10 and in which an operation section 41 is movable in a direction so as to come close to/separate from the body section 10; and a pump 50 which is provided in the body section 10 and is driven and operated by the trigger 40 and forcibly feeds liquid L in the container body 2 to the injection port 31. In the trigger type liquid jet device 1, the operation section 41 is arranged on one side with respect to an axis line O of the fitting cap 20 while the injection port 31 is directed to an opposite side of the operation section 41 with respect to the axis line O of the fitting cap 20.SELECTED DRAWING: Figure 2

Description

The present invention relates to a trigger-type liquid sprayer that is attached to the mouth of a container body that stores liquid.

A conventional sprayer that is used by attaching it to the mouth of a container body that contains liquid is a trigger type that has a main body with a liquid flow path, a cylindrical attachment cap that attaches the main body to the mouth of the container body, a nozzle attached to the main body with a spray nozzle connected to the flow path, a trigger supported by the main body and whose operating part is freely movable in a direction toward and away from the main body, and a pump that is attached to the main body and driven by the trigger to pump the liquid inside the container body to the spray nozzle (see, for example, Patent Document 1).

With this type of trigger-type liquid sprayer, the liquid stored in the container body can be pumped by the pump and sprayed out of the nozzle outlet in a specified amount by simply holding the attached cap with your hand and pulling the trigger with your fingers.

JP 2001-137749 A

The above-mentioned conventional trigger-type liquid ejection device is configured so that the trigger operating part is located on one side (the forward side) of the axis of the mounting cap, and the nozzle outlet is directed to one side (the forward side) of the axis of the mounting cap. In other words, the above-mentioned conventional trigger-type liquid ejection device is configured on the premise that liquid is ejected forward as viewed from the user's perspective.

Therefore, when the liquid stored in the container body is a body care liquid such as a cooling agent, for example, and the user wishes to spray the liquid stored in the container body toward his or her own body, with a conventional trigger-type liquid sprayer, the user must operate the trigger while bending the wrist so that the nozzle outlet faces toward his or her own body, which poses a problem of poor usability.

The present invention was made in consideration of these problems, and its purpose is to provide a trigger-type liquid spraying device that allows a user to easily spray liquid toward their own body.

The trigger-type liquid spray device of the present invention is a trigger-type liquid spray device having a main body with a liquid flow path, a cylindrical attachment cap for attaching the main body to the mouth of a container body, a nozzle attached to the main body with a spray nozzle connected to the flow path, a trigger supported by the main body and with an operating part movable in a direction approaching or receding from the main body, and a pump provided on the main body and driven by the trigger to pressurize the liquid inside the container body to the spray nozzle, characterized in that the operating part is disposed on one side of the axis of the attachment cap, and the spray nozzle is oriented on the opposite side of the axis of the attachment cap from the operating part.

In the trigger-type liquid ejection device of the present invention, in the above configuration, it is preferable that the ejection port is directed downward within a range of 10° to 35° with respect to a direction perpendicular to the axis of the mounting cap.

In the trigger-type liquid ejection device of the present invention, in the above configuration, it is preferable that the ejection port is directed downward at an angle of 35° with respect to a direction perpendicular to the axis of the mounting cap.

In the trigger-type liquid ejection device of the present invention, in the above configuration, it is preferable that the main body is provided with an upright/inverted mechanism that allows the liquid inside the container body to be introduced into the flow path regardless of whether the main body is in an upright or inverted position.

The present invention provides a trigger-type liquid spraying device that allows a user to easily spray liquid onto their own body.

1 is a cross-sectional view of a spray container equipped with a trigger-type liquid spray device according to one embodiment of the present invention. 2 is an enlarged cross-sectional view of a trigger-type liquid ejection device portion of the ejection container shown in FIG. 1 . 2 is an enlarged cross-sectional view of a portion of the trigger-type liquid ejection device of the ejection container shown in FIG. 1 in an inverted position. 2 is an enlarged cross-sectional view of a portion of the trigger-type liquid ejection device of the ejection container shown in FIG. 1 in a state in which the ejection container is tilted 90 degrees from an upright position so that the trigger is positioned above the nozzle. This is an enlarged cross-sectional view of a portion of a trigger-type liquid ejection device of a modified ejection container in which the ejection port angle is 10°, in a state in which the trigger is tilted 90 degrees from the upright position so that it is positioned above the nozzle. This is an enlarged cross-sectional view of a portion of a trigger-type liquid ejection device of a modified ejection container in which the ejection port angle is 35°, in a state in which the trigger is tilted 90 degrees from the upright position so that it is positioned above the nozzle. This is an enlarged cross-sectional view of a portion of a trigger-type liquid ejection device of a modified ejection container in which the ejection port angle is 40°, in a state in which the trigger is tilted 90 degrees from the upright position so that it is positioned above the nozzle.

Below, we will explain in detail an example of a trigger-type liquid ejection device according to one embodiment of the present invention with reference to the drawings.

As shown in FIG. 1, a trigger-type liquid spray device 1 according to one embodiment of the present invention is used by being attached to the mouth 2a of a container body 2 that contains liquid L. The trigger-type liquid spray device 1 and the container body 2 together form a spray container 3.

In this specification and claims, the vertical direction refers to the vertical direction when the trigger-type liquid spray device 1 or spray container 3 is in the upright position shown in Figure 1. The radial direction refers to the direction along a straight line that passes through the axis O of the mouth 2a of the container body 2 and is perpendicular to the axis O.

The container body 2 to which the trigger-type liquid spray device 1 is attached can be of various shapes or configurations capable of storing body care liquid L, such as a cooling agent, inside. In this embodiment, the container body 2 is a bottle container made of synthetic resin. The mouth 2a of the container body 2 is cylindrical and opens upward at the top end of the container body 2 with the axis O facing vertically.

As shown in FIG. 2, the trigger-type liquid injection device 1 has a main body 10. The main body 10 has an internal flow path 11 for the liquid L, and is attached to the mouth 2a by an attachment cap 20.

In this embodiment, the flow path 11 provided in the main body 10 is L-shaped and includes a first flow path 11a extending parallel to the axis O, and a second flow path 11b that is connected to the upper end of the first flow path 11a and extends in a direction perpendicular to the first flow path 11a. A flange 12 is provided on the lower end side of the main body 10, and the main body 10 is attached to the mouth 2a by sandwiching the flange 12 between the attachment cap 20 and the mouth 2a. In this embodiment, the main body 10 is provided with a cover body 14 that covers it.

The mounting cap 20 is cylindrical and coaxial with the mouth portion 2a. That is, the axis of the mounting cap 20 is the same axis O as the mouth portion 2a. In this embodiment, the mouth portion 2a and the mounting cap 20 are each cylindrical with the axis O as the center, and the mounting cap 20 is attached to the outside of the mouth portion 2a by screw connection. The mounting cap 20 is integrally provided with a locking portion 21 that protrudes radially inward on the upper end side, and is configured to sandwich the flange 12 between the upper end of the mouth portion 2a and the locking portion 21. The reference numeral 22 denotes a seal ring for preventing liquid leakage from between the mouth portion 2a and the main body portion 10.

A nozzle 30 is attached to the main body 10. The nozzle 30 has an injection port 31 that is connected to the flow path 11, and can inject the liquid L supplied through the flow path 11 from the injection port 31 toward the outside.

In this embodiment, the nozzle 30 has a support tube portion 32 rotatably supported by a tube portion 13 provided on the main body portion 10, and a partition portion 33 integrally provided at one end of the support tube portion 32. By rotating it relative to the main body portion 10, it can be switched between a closed position in which the communication between the injection port 31 and the flow path 11 is blocked, and an open position in which the injection port 31 and the flow path 11 are in communication. The injection port 31 is provided in the partition portion 33. In addition, a cylindrical connecting tube portion 34 coaxial with the injection port 31 is integrally provided on the surface of the partition portion 33 facing the main body portion 10. A shaft body 35 is disposed between the main body portion 10 and the partition portion 33, and the tip side portion of the shaft body 35 is fitted into the connecting tube portion 34. The shaft 35 has a through hole 35a that connects the second flow path 11b to the space inside the cylindrical portion 13, and a flow path 36 that connects the space inside the cylindrical portion 13 to the injection port 31 is provided between the shaft 35 and the connecting cylindrical portion 34. As a result, the injection port 31 is configured to inject the liquid L in a cone shape at a predetermined injection angle α centered on the axis of the injection port 31 (injection direction D). In this embodiment, the injection angle α of the liquid L from the injection port 31 is 120 degrees. As described above, since the shaft 35 is configured as a separate body from the main body 10, the liquid L can be ejected in a cone shape from the injection port 31 at a predetermined injection angle α using the shaft 35, and the main body 10 can be easily molded by injection molding of a synthetic resin material. In this embodiment, the lower part of the end face of the shaft 35 facing the axis O is abutted against the main body 10, but a gap may be provided between the end face of the lower part and the main body 10 so that liquid can flow into the inside of the cylindrical part 13 from the lower through hole 35a.

The trigger-type liquid ejection device 1 is equipped with a trigger 40. The trigger 40 is supported by the main body 10, and its operating part 41 is movable in a direction toward and away from the main body 10. The operating part 41 is a part that is operated by the user, and is disposed on one side (the left side in FIG. 2) of the axis O of the mounting cap 20. A gap is provided between the operating part 41 and the mounting cap 20, and the operating part 41 can approach and move away from the main body 10 within the range of this gap.

The trigger 40 has a circular support pin 42 at the upper end of the lever-shaped operating part 41, and the support pin 42 is supported rotatably by the locking part 43a of the resin spring unit 43 attached to the main body 10. That is, in this embodiment, the trigger 40 is supported by the main body 10 via the resin spring unit 43. As a result, the trigger 40 is movable (swingable) so that the operating part 41 approaches and moves away from the main body 10 between the initial position shown by the solid line in FIG. 2 and the position moved toward the mounting cap 20 side as shown by the two-dot chain line, centered on the support pin 42. The trigger 40 may be directly supported by the main body 10. The resin spring unit 43 has a block-shaped support 43b, which is inserted into the recess 10a of the main body 10 and is attached to the main body 10 by being prevented from coming off by a protrusion. Since the flow path 11 is not provided in the portion of the main body 10 closer to the trigger 40 than the axis O, a recess 10a for attaching the resin spring unit 43 to the main body 10 can be provided in that portion of the main body 10. The resin spring unit 43 also has a curved resin spring 43c. The lower end portion of the resin spring 43c is engaged with the trigger 40, and the trigger 40 is biased toward the initial position by the resin spring 43c. As a result, the trigger 40 is held in the initial position by the spring force of the resin spring 43c, and after being pulled in a direction approaching the mounting cap 20, the spring force of the resin spring 43c automatically returns the trigger 40 to the initial position when the pulling operation is released. Furthermore, a wall portion 43d is provided in the resin spring unit 43, and the internal space of the resin spring unit 43 is covered by the wall portion 43d so that the internal space cannot be seen from the outside.

The trigger 40 may have other configurations, such as a configuration in which the trigger 40 is supported by the main body 10 and the operating unit 41 is movable toward or away from the main body 10, such as a configuration in which the trigger 40 is supported by a guide rail or the like so that the operating unit 41 can slide linearly or curvedly on the main body 10.

The main body 10 is provided with a pump 50. The pump 50 is driven by the trigger 40 to pump the liquid L inside the container body 2 to the nozzle 31.

In this embodiment, the pump 50 is a piston type having a piston 51 and a cylinder 52, and is provided in the middle of the first flow path 11a. Check valves 53 and 54 are provided on the downstream and upstream sides of the communication portion between the first flow path 11a and the pump 50, respectively.

The piston 51 is connected to the trigger 40. More specifically, a protrusion 44 having a circular cross section is provided between the operating portion 41 and the support pin 42 of the trigger 40, and the protrusion 44 engages with a recess 51a provided at the front end portion of the piston 51, thereby connecting the piston 51 to the trigger 40. As a result, the piston 51 is operated by operating the trigger 40. That is, when the trigger 40 is pulled from the initial position in a direction approaching the mounting cap 20, the piston 51 moves toward the inside of the cylinder 52, the check valve 54 opens, the check valve 53 closes, and the pump 50 operates to pump the liquid L inside the cylinder 52 to the injection port 31 through the second flow path 11b and the first flow path 11a. When the trigger 40 is released, the piston 51 moves outward from inside the cylinder 52 due to the return motion of the trigger 40, the check valve 53 opens, the check valve 54 closes, and the pump 50 operates to suck the liquid L from inside the container body 2 into the cylinder 52 through the second flow path 11b.

The pump 50 is not limited to the above configuration, and may have other configurations as long as it is driven by the trigger 40 to operate and pressure-feed the liquid L inside the container body 2 to the injection port 31.

With the injection container 3 using the trigger-type liquid injection device 1 configured as described above, the user can hold the injection container 3 by grasping the mounting cap 20 with his/her hand and pull the trigger 40 by placing his/her finger on the operating portion 41 of the trigger 40 to operate the pump 50 and inject a predetermined amount of liquid L from the inside of the container body 2 to the outside through the injection port 31. The liquid L can be injected from the injection port 31 of the nozzle 30.

The trigger-type liquid injection device 1 can also be configured with an upright/inverted mechanism 60 provided on the main body 10. The upright/inverted mechanism 60 allows the liquid L inside the container body 2 to be introduced into the flow path 11 regardless of whether the main body 10 is in an upright or inverted position.

More specifically, the normal inversion mechanism 60 has a case body 61 supported by the main body 10. Inside the case body 61, a communication passage 62 connected to the flow passage 11 (first flow passage 11a) is provided. In addition, a suction pipe 63 connected to the communication passage 62 is connected to the case body 61, and as shown in FIG. 1, the lower end of the suction pipe 63 extends to the bottom of the container body 2. Inside the case body 61, a valve chamber 65 is provided, separated from the communication passage 62 by a partition wall 64, and a spherical valve body 66 is arranged in the valve chamber 65 so as to be movable in the vertical direction. The valve chamber 65 is connected to the inside of the container body 2 inside the mouth portion 2a through a communication hole 67 provided in the case body 61. In addition, the partition wall 64 is provided with an outlet 68 that connects the valve chamber 65 to the communication passage 62.

When the main body 10, i.e., the trigger-type liquid injection device 1, is in an upright position, the valve body 66 moves downward by its own weight inside the valve chamber 65, the outlet 68 is closed by the valve body 66, and the flow path 11 is in a state of communication with the bottom of the container body 2 via the communication passage 62 and the suction pipe 63. Therefore, when the trigger 40 is operated with the trigger-type liquid injection device 1 in an upright position, the liquid L inside the container body 2 is sucked into the flow path 11 from the bottom of the container body 2 through the suction pipe 63, so that even if the remaining amount of liquid L decreases, the liquid L can be sucked into the flow path 11. On the other hand, as shown in FIG. 3, when the main body 10, i.e., the trigger-type liquid injection device 1, is in an inverted position, the valve body 66 moves downward by its own weight inside the valve chamber 65 so as to move away from the outlet 68, the outlet 68 is opened, and the flow path 11 is in a state of communication with the inner part of the mouth part 2a of the container body 2 via the valve chamber 65 and the communication hole 67. Therefore, when the trigger 40 is operated while the trigger-type liquid ejector 1 is in an inverted position, the liquid L inside the container body 2 is sucked into the flow path 11 from the inside of the mouth 2a through the communication hole 67, the valve chamber 65, the outlet 68, and the communication path 62, so that the liquid L inside the container body 2 can be sucked into the flow path 11 even when the trigger-type liquid ejector 1 is in an inverted position.

In the trigger-type liquid injection device 1 of this embodiment, the operating part 41 of the trigger 40 is disposed on one side of the axis O of the mounting cap 20, while the injection port 31 of the nozzle 30 faces the opposite side of the operating part 41 with respect to the axis O of the mounting cap 20. In other words, if the side with the operating part 41 of the trigger 40 is provided with respect to the axis O of the mounting cap 20 is defined as the front, and the side with the nozzle 30 is provided as the rear, the operating part 41 of the trigger 40 is disposed on the front side with respect to the mounting cap 20, while the injection port 31 of the nozzle 30 is provided to open toward the rear.

In addition, when viewed from above, the trigger 40 and the nozzle 31 are located symmetrically with respect to the axis O.

As shown in FIG. 2, in this embodiment, the second flow path 11b extends straight backward along a direction perpendicular to the axis O of the mounting cap 20 (horizontal direction), and the nozzle 31 of the nozzle 30 also faces backward in a direction perpendicular to the axis O of the mounting cap 20 (horizontal direction).

Therefore, when a user of the trigger-type liquid injection device 1 of this embodiment wants to inject the liquid L stored in the container body 2, such as a body care liquid such as a cooling agent, toward his or her own body, the user can hold the injection container 3 by grasping the attachment cap 20 with his or her hand, place his or her finger on the operating portion 41 of the trigger 40, and pull the trigger 40 to easily inject the liquid L toward his or her own body from the nozzle 31 facing backwards, without bending the wrist or arm significantly.

In this way, in the trigger-type liquid spray device 1 of this embodiment, the operating part 41 of the trigger 40 is located on one side of the axis O of the mounting cap 20, and the spray outlet 31 of the nozzle 30 faces the opposite side of the operating part 41 with respect to the axis O of the mounting cap 20, so that the liquid L can be easily sprayed toward one's own body without bending the wrist or arm significantly.

The trigger-type liquid spray device 1 of this embodiment can also be configured so that the spray nozzle 31 is directed downward at an angle of 10° to 35° with respect to the direction perpendicular to the axis O of the mounting cap 20. In particular, it is preferable to configure the spray nozzle 31 so that it is directed downward at an angle of 35° with respect to the direction perpendicular to the axis O of the mounting cap 20.

When a user holds the spray container 3 in his/her hand, raises his/her arm, bends his/her elbow, and turns the container 3 over his/her shoulder toward his/her back 70 to spray the liquid L toward his/her back 70, the trigger-type liquid spray device 1 assumes a position that is tilted 90 degrees from the upright position so that the trigger 40 is positioned above the nozzle 30, as shown in FIG. 4.

At this time, if the nozzle 31 of the nozzle 30 is oriented in a direction perpendicular to the axis O of the mounting cap 20 (nozzle angle: 0 degrees), the spray direction D of the liquid L from the nozzle 31 becomes approximately parallel to the back 70, and only about 1/3 of the liquid L sprayed from the nozzle 31 adheres to the back 70, resulting in poor efficiency.

In response to this, as shown in FIG. 5, the nozzle 31 of the nozzle 30 is configured to be directed downward at an angle of 10° (nozzle angle: 10°) relative to the direction perpendicular to the axis O of the mounting cap 20. When the trigger-type liquid spray device 1 is tilted 90° from the upright position so that the trigger 40 is positioned above the nozzle 30, the spray direction D of the liquid L from the nozzle 31 is tilted at an angle of 10° toward the back 70, and approximately 2/3 of the liquid L sprayed from the nozzle 31 can be deposited on the back 70.

Also, as shown in FIG. 6, by configuring the nozzle 31 of the nozzle 30 to face downward at an angle of 35° (nozzle angle: 35°) with respect to a direction perpendicular to the axis O of the mounting cap 20, when the trigger-type liquid spray device 1 is tilted 90° with respect to the upright position so that the trigger 40 is positioned above the nozzle 30, the spray direction D of the liquid L from the nozzle 31 is tilted at an angle of 35° toward the back 70, and almost the entire amount of the liquid L sprayed from the nozzle 31 can be deposited on the back 70.

On the other hand, as shown in FIG. 7, if the nozzle 31 of the nozzle 30 is configured to be directed downward at a 45° angle (nozzle angle: 45°) relative to the direction perpendicular to the axis O of the attachment cap 20, when the trigger-type liquid spray device 1 is tilted 90° from the upright position so that the trigger 40 is positioned above the nozzle 30, the spray direction D of the liquid L from the nozzle 31 will be inclined at an angle of 45° toward the back 70. In this case, the liquid L sprayed from the nozzle 31 will only adhere locally to a specified area of the back 70, making it difficult to apply the liquid L to the entire back 70.

In this way, by configuring the nozzle 31 to be directed downward within a range of 10° to 35° with respect to a direction perpendicular to the axis O of the attachment cap 20, the trigger-type liquid spray device 1 of this embodiment can be made to be able to spray or apply liquid L to one's own back 70 easily and efficiently.

In particular, by configuring the nozzle 31 to face downward at an angle of 35° with respect to a direction perpendicular to the axis O of the attachment cap 20, the trigger-type liquid spray device 1 of this embodiment can more efficiently spray or apply the liquid L onto the user's own back 70.

In the case shown in Figures 5 to 7, the second flow path 11b of the flow path 11 provided in the main body 10 is inclined with respect to a direction perpendicular to the axis O of the mounting cap 20, and the nozzle 30 or injection port 31 is provided parallel to the second flow path 11b. However, this is not limited to the above, and the second flow path 11b of the flow path 11 provided in the main body 10 may be configured to extend in a direction perpendicular to the axis O of the mounting cap 20, and only the nozzle 30 or injection port 31 may be inclined with respect to a direction perpendicular to the axis O of the mounting cap 20.

The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the invention.

For example, in the above embodiment, the nozzle 31 of the nozzle 30 is oriented in a direction perpendicular to the axis O of the mounting cap 20 (nozzle angle: 0 degrees), the nozzle 31 of the nozzle 30 is oriented downward at an angle of 10 degrees (nozzle angle: 10 degrees) relative to the direction perpendicular to the axis O of the mounting cap 20, the nozzle 30 is oriented downward at an angle of 35 degrees (nozzle angle: 10 degrees) relative to the direction perpendicular to the axis O of the mounting cap 20, and the nozzle 31 of the nozzle 30 is oriented downward at an angle of 45 degrees (nozzle angle: 10 degrees) relative to the direction perpendicular to the axis O of the mounting cap 20 are exemplified, but the present invention is not limited to these, and the angle formed by the nozzle 31 of the nozzle 30 with respect to the direction perpendicular to the axis O of the mounting cap 20 may be set to an angle other than the above, or the nozzle 30 may be oriented upward at a predetermined angle with respect to the direction perpendicular to the axis O of the mounting cap 20.

In addition, in the above embodiment, the main body 10 is provided with a normal inversion mechanism 60, but the normal inversion mechanism 60 may not be provided.

Furthermore, the liquid L stored in the container body 2 to which the trigger-type liquid ejection device 1 is attached is not limited to body care liquids such as cooling agents, but may be various other liquids.

1 Trigger-type liquid spraying device 2 Container body 2a Mouth portion 3 Spraying container 10 Main body portion 10a Recess 11 Flow path 11a First flow path 11b Second flow path 12 Flange 13 Cylindrical portion 14 Cover body 20 Mounting cap 21 Locking portion 22 Seal ring 30 Nozzle 31 Spray nozzle 32 Support cylinder portion 33 Partition wall portion 34 Connecting cylinder portion 35 Shaft body 35a Through hole 36 Flow path 40 Trigger 41 Operation portion 42 Support pin 43 Resin spring unit 43a Locking portion 43b Support body 43c Resin spring 43d Wall portion 44 Protrusion 50 Pump 51 Piston 51a Recess 52 Cylinder 53 Check valve 54 Check valve 60 Normal inversion mechanism 61 Case body 62 Communication passage 63 Suction pipe 64 Partition wall 65 Valve chamber 66 Valve body 67 Communication hole 68 Outlet 70 Back L Liquid O Axis D Spray direction α Spray angle

Claims (4)

A main body portion having a liquid flow path;
a cylindrical attachment cap for attaching the main body to the mouth of the container body;
a nozzle attached to the main body and including an injection port connected to the flow path;
a trigger supported by the main body and having an operation unit movable in a direction toward and away from the main body;
a pump provided in the main body, the pump being driven by the trigger to pump the liquid in the container body to the nozzle,
The operating portion is disposed on one side with respect to an axis of the mounting cap,
A trigger-type liquid ejection device, characterized in that the ejection port is directed to a side opposite the operating portion with respect to an axis of the mounting cap. The trigger-type liquid ejection device according to claim 1, wherein the ejection port is directed downward within a range of 10° to 35° with respect to a direction perpendicular to the axis of the mounting cap. The trigger-type liquid ejection device according to claim 2, wherein the ejection port is directed downward at an angle of 35° with respect to a direction perpendicular to the axis of the mounting cap. The trigger-type liquid ejection device according to any one of claims 1 to 3, wherein the main body is provided with an upright/inverted mechanism that allows the liquid inside the container body to be introduced into the flow path regardless of whether the main body is in an upright or inverted position.

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