JP2008037432A - Spout device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout device that is prevented from falling into a container such as a PET bottle, a bottle or the like when the cap of the container is screwed tightly and allow the use of the cap of the container as it is while the spout device kept attached. <P>SOLUTION: The spout device has a locking part 1 locked on the spout of the container, a fall prevention ear 2 formed on the upper edge of the locking part 1 and preventing the device from falling in the container 20, and an air inflow conduit 4 fixed to the locking part 1 and admitting air from outside of the container 20 to enter the container 20. A cut 3 is made in a boundary between the locking part 1 and the fall prevention ear 2 so as to have a tapered face. The notch 3 is formed so that the position L of the upper end side of the notch 3 is located slightly further outside than a position P on a vertical line on the inner peripheral face of the container 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a spout device, and in particular, when a cap of a container such as a PET bottle or a bottle is tightened, the spout device does not fall into the container as the cap rotates, and the spout device remains attached. It is related with the spout apparatus which can use the cap of the conventional container as it is in the state of this.

  When pouring liquid from containers such as plastic bottles, bottles, cans, etc., due to the balance between the thickness of the spout and the viscosity of the liquid, the spout is closed when the liquid flows out, so the inside of the container becomes negative pressure, Once the liquid stops flowing, the phenomenon of resuming the outflow after sucking in approximately the same amount of air as the discharged liquid is repeated, causing a so-called hiccup phenomenon where the liquid flows out intermittently little by little. is there. When such a phenomenon occurs, it takes a long time to pour out the liquid, and the liquid scatters, splashes, and stains the surroundings.

  In order to solve such a problem, for example, as shown in Patent Document 1, a device for holding a straw is attached to a spout such as a plastic bottle, and an air passage is secured by inserting the straw into the device. A method has been proposed. For example, as shown in Patent Document 2, an example in which a stopper attached to a tube of about 3 cm is attached to a spout of a plastic bottle or a bottle has been reported.

  However, the apparatus having the device for holding the straw of Patent Document 1 has a drawback that the attached straw tends to come off when the attached straw starts to flow. Moreover, the thing which has the stopper of patent document 2 cannot stop using the cap of the conventional container as it is when it protrudes from the spout of a plastic bottle or a bottle, and the thing which does not protrude from a spout stops. There was a risk that the tool itself would fall into the bottle or bottle.

  For this reason, as shown in Patent Document 3, the applicant is a spout device attached to an opening of a spout of a container such as a plastic bottle or a bottle, and is a latch that is locked to the spout of the container. , A drop prevention ear provided on the upper edge of the locking portion to prevent the instrument from falling into the container, a liquid outflow path fixed to the locking portion from the inside of the container, and the outside of the container Has proposed a spout device having a partition for separating an air inflow passage from the air and an air inflow conduit extending from the side of the air inflow passage to the inside of the container.

  According to the spout device shown in Patent Document 3, a drop prevention ear that prevents the spout device from dropping into the container, and at least a half circumference of the inner wall of the container spout are in close contact with and locked to the inner wall of the spout. Since it has a locking part, it can be easily attached and fixed to the spout of containers such as PET bottles and bottles, so that it does not fall into the container and the cap of the conventional container in the attached state Can be used as it is, and when the liquid is poured from the container, the outflow of the liquid is smooth, the flow of the liquid is not interrupted, causing a hiccup phenomenon, and the liquid can be prevented from scattering around.

JP 2005-041570 A JP 2002-249138 A Japanese Patent Application No. 2005-067146

However, according to the spout device according to Patent Document 3, it can be easily attached to the spout of a container such as a PET bottle or a bottle, and while the cap of the conventional container can be used as it is, There were the following problems.
That is, generally, a cap of a container such as a plastic bottle has a rib-like shape that is inserted into the inner periphery of the mouth portion of the container and presses the inner peripheral surface of the mouth portion to enhance the sealing performance of the container when the cap is tightened. Inner ring is provided, but the tip of this inner ring comes into contact with the boundary edge between the drop-off prevention ear and the locking part described above, and this part is pushed with the rotation of the cap for closing the cap. Therefore, there is a problem that the spout device falls into the container.

  Therefore, the object of the present invention is to prevent the spout device from falling into the container with the rotation of the cap when the cap of the container such as a PET bottle or a bottle is tightened, with the spout device being attached. An object of the present invention is to provide a spout device that can use the cap of a conventional container as it is.

  In order to achieve the above object, the present invention provides a locking portion locked to a spout of a container and a drop-off prevention device provided on the upper edge of the locking portion to prevent the instrument from falling into the container. In the spout device which has an ear and an air inflow conduit which is fixed to the locking portion and connects the air from the outside of the container into the container, and is attached to the opening of the spout of the container. And a spout device characterized in that a notch having a predetermined tapered surface is formed at the boundary between the drop-off prevention ears.

  In the above configuration, it is desirable that the cut is formed so that the position of one end on the drop-off prevention ear side is located outside the position on the vertical line of the inner peripheral surface of the container.

  As described above, according to the spout device of the present invention, a notch having a predetermined tapered surface is formed at the boundary between the locking portion and the drop-off preventing ear, so that a cap of a container such as a plastic bottle or a bottle is attached. When the cap is turned, the spout device does not fall into the container with the rotation of the cap, and the cap of the conventional container can be used as it is with the spout device attached.

Hereinafter, a spout device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an external view of a spout device of the present invention, and FIG. 2 is a view showing a state in which liquid is poured out by attaching the spout device of the present invention to a container such as a plastic bottle or a bottle.
1 and 2, reference numeral 1 is a locking portion, reference numeral 2 is a drop-off prevention ear, reference numeral 3 is a notch, reference numeral 4 is an air inflow conduit, reference numeral 10 is a spout device of the present invention, and reference numeral 20 is a plastic bottle. Reference numeral 21 denotes a spout of the container 20, and reference numeral 22 denotes a shoulder portion of the container 20. The spout device 10 is made of a thermoplastic such as polyethylene, polystyrene, or nylon.

  In the above configuration, the locking portion 1 is configured in a vertically-divided cylindrical shape that can be inserted into the spout 21 of the container 20, and when inserted into the spout 21, the spout 21 is arranged in the circumferential direction thereof. Has elasticity to push open. Thereby, it can respond to the fluctuation | variation of the diameter of the spout 21 of the container 20 to some extent, and is versatile with respect to the various containers 20. The locking portion 1 has a length that allows the locking portion 1 to be in close contact with the inner wall of the spout 21 at least at a half or more when the locking portion 1 is inserted into the spout 21.

  A drop prevention ear 2 is provided on the upper edge of the locking portion 1. The drop prevention ear 2 is caught on the edge around the spout 21 when the locking portion 1 is inserted into the container 20.

  A notch 3 having a tapered surface is formed at the boundary between the locking portion 1 and the drop prevention ear 2. As shown in FIG. 3, the position L of one end on the upper side of the notch 3 is formed to be slightly outside (about 0.1 mm) from the position P on the vertical line of the inner peripheral surface of the container 20. Has been. As described later, the tip of the inner ring 32 of the cap 30 is formed in this way so that it does not come into contact with the boundary between the locking portion 1 and the drop-off preventing ear 2 so that the spout device 1 does not fall into the container 20. This is to make it function as a guide for doing this.

  In addition, an air inflow conduit 4 is provided in the locking portion 1. The air inflow conduit 4 is configured to bend along the inside of the container 20, and the tip thereof reaches the inside of the shoulder portion 22 of the container 20.

  As shown in FIG. 2, the spout device 10 configured as described above is inserted into the container 20, and the locking portion 1 is stopped at the spout 21 of the container 20. When the attached side is tilted upward, air flows into the container 20 through the air inflow conduit 4, and the liquid in the container 20 continuously flows out in a stable state, so-called hiccup phenomenon occurs. The liquid does not wake up and does not splash around, and the liquid flows out smoothly.

FIG. 4 is a view showing a state in which the cap 30 of the container 20 is closed with the spout device 10 attached to the spout 21 of the container 20.
As shown in the figure, the cap 30 is formed with a screw portion 31 that is screwed into the outer peripheral portion 23 of the spout 21 on the inner side, and the screw portion 31 and the outer peripheral portion 23 of the spout 21 are screwed. As a result, the spout 21 is tightened. The cap 30 includes an inner ring 32 that is inserted inside the spout 21. When the cap 30 is screwed into the spout 21 and tightened, the inner ring 32 is elastically deformed to cause the spout device 10. Press contact the inner peripheral surface of the locking part 1

  Further, the cap 30 is provided with an outer ring 33 that presses against the top surface of the spout 21, and the inner ring 32 and the outer ring 33 are respectively provided on the top surface of the spout 21 and the inside of the locking portion 1. The sealing of the container 20 is improved by pressing the peripheral surface by elastic deformation.

5 (a) and 5 (b) are views showing a state in which the cap 30 is attached to the spout 21. FIG. 5 (a) shows a state before the cap 30 is tightened, and FIG. 5 (b) shows a state in which the cap 30 is tightened. It is a figure which shows the finished state.
As shown in FIG. 5A, when the cap 30 starts to be screwed onto the outer peripheral portion 23 of the container 20, the inner ring 32 of the cap 30 contacts the spout device 10, but the locking portion of the spout device 10. A notch 3 having a tapered surface is formed at the boundary between 1 and the drop-off prevention ear 2, and the position of one end on the upper side of the notch 3 is from the position of the vertical line on the inner peripheral surface of the container 20. Since it is formed so as to be slightly outside, it functions to guide the tip of the inner ring 32, and is pressed by elastic deformation along the inner peripheral surface of the locking portion 1 as the cap 30 rotates. While moving down. 5B, when the screwing of the cap 30 and the container 20 is completed, the top surface of the spout 21 is pressed by the outer ring 33 of the cap 30, and the spout device is pressed by the inner ring 32. Is done. Thereby, the inside of the container 20 is maintained in a sealed state.

  As described above, the spout device 10 of the present invention is formed with the notch 3 having a tapered surface at the boundary between the locking portion 1 and the drop-off prevention ear 2, so that when the cap is tightened, the inner ring 32 is formed. The tip of the abutment comes into contact with the boundary portion between the locking portion 1 and the drop-off prevention ear 2, and the spout device 10 is prevented from falling into the container 20 when the portion is pushed. Thereby, the cap of the conventional container can be used as it is with the spout device 10 attached.

  Since the spout device of the present invention can be used in containers such as PET bottles and bottles, it can be used in containers for drinking water, fruit juices, liquid seasonings, oils, paints, liquid detergents, chemicals, etc. Can be used in industrial fields.

It is an external view of the spout apparatus which concerns on embodiment of this invention. It is a figure which shows the state which is pouring out the liquid by attaching the spout apparatus which concerns on embodiment of this invention to containers, such as a PET bottle and a bottle. It is explanatory drawing for showing the position where the cut is formed. It is a figure which shows the state which closed the cap of the container in the state which attached the spout apparatus to pouring of the container. It is a figure which shows the state which attaches a cap to a spout, (a) is a figure which shows the state before tightening a cap, (b) is a figure which shows the state which finished tightening a cap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Locking part 2 Drop-off prevention ear 3 Notch 4 Air inflow conduit 10 Spout device 20 Container 21 Spout 22 Shoulder part 23 Outer part 30 Cap 31 Screw part 32 Inner ring 33 Outer ring

Claims (2)

A locking portion locked to the spout of the container, a drop prevention ear provided on the upper edge of the locking portion to prevent the instrument from falling into the container, and the container fixed to the locking portion. In the spout device having an air inflow conduit for connecting air from the outside into the container, attached to the opening of the spout of the container,
A spout device, wherein a notch having a predetermined tapered surface is formed at a boundary between the locking portion and the drop-off preventing ear. The said cut | incision is formed so that the position of the one end by the side of the said drop-off prevention ear may come to the position of the outer side rather than the position on the vertical line of the inner peripheral surface of the said container. Spout apparatus.

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