JPH069973Y2 - Pouring cap - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a pouring cap, and more particularly to a pouring cap of a type that can be poured by rotating the cap.

[Conventional technology]

Heretofore, various kinds of this type of pouring cap have been provided, for example, the one described in JP-A-59-1363 is known.

This is because when the pressure inside the squeeze bottle 50 and the atmospheric pressure are the same, as shown in FIG.
The valve mechanism provided inside is closed, while the contents are discharged when the bottle 50 is compressed, and the air corresponding to the volume of the discharged contents is sucked when the bottle 50 is released. .

The base portion 52 and the turning cap 53 of the pouring cap 51 are rotatably fitted, and the base portion 52 and the turning cap 53 are formed with cylindrical bodies 62 and 63, respectively, which are fitted rotatably and closely. And the communication holes 54, 55 that communicate with each other depending on the rotating position.
Is provided. A spout is provided at the center of the rotating cap 53.
56 is provided so that the liquid material can be poured out through the communication hole 57 formed on the base portion 52 side.

A valve body 58 is vertically movably arranged between the circulation hole 57 and the communication hole 54, and normally separates the circulation hole 57 and the spout 56 from each other, but when the bottle 50 is pressurized. Due to the pressure, the inner peripheral end portion 59 thereof floats above the base portion 52, and the liquid material flows.

On the other hand, when the bottle 50 is depressurized, the outer peripheral end portion 60 of the valve element 58 is separated from the valve seat 61 vertically attached to the rotating cap 53 by the negative pressure,
Air is taken into the bottle 50. In this cap structure, since the air passage is formed in the vicinity of the outer peripheral portion of the rotary cap 53 over the entire circumference, the opening area of the air passage can be increased, and the air after the pouring can be quickly sucked. as a result,
The pressure inside the bottle 50 can be quickly made equal to atmospheric pressure,
The compressed and deformed bottle 50 can be quickly returned to its original shape, and the pouring operation can be repeated continuously and smoothly.

In this way, the inside of the bottle 50 and the outside air are separated from each other by the valve body 58 sandwiched between the base portion 52 and the rotating cap 53, so that the liquid is prevented from being accidentally leaked out.

[Problems to be solved by the invention]

However, in the above-described configuration, since the valve body 58 is only held by being interposed between the base portion 52 and the rotary cap 53, there is a risk of misalignment, which makes the operation unstable. There is a problem that it is easy to become.

Furthermore, since the valve body 58 is not fixed at all, even if a foreign matter is inserted between the valve body and the valve seat, it cannot be removed by rotating the rotary cap 53.

Therefore, the present applicant has previously proposed the pouring cap described in Japanese Utility Model Application No. 60-161673 (Japanese Utility Model Publication No. 4-15665).

This is a flexible container 101, as shown in FIGS.
A plurality of annular shields 105, 106 are erected concentrically on an upper plate portion 104 of the cap base 103 to be attached to the mouth tube portion 102 of the slit cylinder 107, and slit portions 107 are formed on the annular shields 105, 106 at predetermined intervals.
And each annular shield wall 105, 106 of the upper plate portion 104.
A communication port 108 communicating with the inside of the container is formed between the cap base 103 and a cap 109 that covers the entire upper plate portion 104 of the cap base 103 and has a spout 118 in the center.
Is rotatably fitted to the annular shield wall 105 and 106, and an annular protrusion 121 provided on the lower surface of the annular body 110 is rotatably fitted between the annular shield walls 105 and 106. The annular part 110 is non-rotatably locked to the cap 109 by engaging the joint part 116 with the locking part 117 provided on the lower surface of the cap 109.

In the annular protruding portion 121, a notch portion 111 that selectively forms a flow path from the pouring outlet 118 to each slit portion 107 is formed corresponding to the slit portion 107, and from the slit portion 107. A discharge valve 114 and an intake valve 115 that open and close the flow path to the communication port 108 are formed at the inner peripheral end and the outer peripheral end of the annular body 110. Then, at the time of pouring, the content flows out through the route of arrow A, while at the time of inhalation, the air flows in through the route of arrow B. Also in this cap structure, since the opening area of the air passage can be increased, the inside of the container 101 can be quickly made to have the same pressure as the atmospheric pressure, and the compressed and deformed container 101 can be quickly returned to its original shape. Repeating can be done continuously and quickly.

With the above-described configuration, the valve operates stably and the valve is self-cleaned as the rotary cap rotates, but there is a problem that the structure becomes somewhat complicated.

The present invention has been made in view of the above-mentioned points, and the valve has a stable operation, and the pouring operation can be repeated quickly and smoothly, and the pouring cap has a simple structure. This is a technical issue.

[Means for solving problems]

In order to solve the above-mentioned technical problems, the present invention has a cap base 3 mounted on the mouth tube portion 2 of the container body 1, and a cap 4 is provided on the cap base 3 so as to be rotatable and not vertically movable. The pouring cap has the following structure.

That is, the first annular wall 5 is formed on the upper surface of the cap base 3, and the step portion 6 is formed on the outer side of the first annular wall 5.

Then, a second annular wall 7 is formed outside the step portion 6, and a flow hole 8 is formed between the step portion 6 and the second annular wall 7.

On the other hand, a pouring hole 9 is formed in the center of the cap 4, and a pipe body 10 fitted to the first annular wall 5 is vertically provided at the edge of the pouring hole 9. Further, the tube body 10 and the first annular wall 5 are provided with communication holes 11 which communicate with each other at a predetermined angle.

A valve body 12 is inserted between the cap base 3 and the cap 4, and a packing portion formed on the outer periphery of the valve body 12.
13 is sandwiched and fixed by the second annular wall 7 and the cap 4, and an annular valve 14 that elastically contacts the upper surface of the stepped portion 6 extends inside the packing portion 13.

In addition, the valve body 12 has an arc shape that opens and closes elastically in contact with the top plate portion 4a of the cap 4 at the joint portion between the packing portion 13 and the annular valve 14 over substantially the entire circumference thereof. To form the air intake hole 15.

[Operation] When the cap 4 is rotated to a predetermined position, the communication hole 11 communicates with each other, and the contents can be poured out.

Here, when the container body 1 is squeezed, the contents are communicated with the communication hole 8
And flows out to the upper surface of the cap base 3. Then, the content pushes up the annular valve 14 and is discharged from the communication hole 11 through the discharge hole 9 as shown by the arrow A.

When the container body 1 is released, the container body 1 tries to return to its original shape, so that the inside of the container becomes a negative pressure and the annular valve
The inner edge of 14 is in close contact with the step 6 and is closed.

At the same time, the annular valve 14 moves downward due to the negative pressure, and a gap is created between the annular valve 14 and the cap 4. Then, the top plate portion 4 of the cap 4
The air inflow hole 15 that was in contact with a is separated from the top plate portion 4a,
Air flows in as shown by arrow B. Since the air inflow hole 15 is formed in the vicinity of the outer peripheral edge of the valve body 12 over substantially the entire circumference thereof, the opening area as an air passage is large, and air quickly flows in. As a result, the pouring operation can be repeated continuously and quickly.

Further, the packing portion 13 located adjacent to the air inflow hole 15
Is fixed by being sandwiched between the second annular wall 7 and the cap 4, the valve body 12 is always held at an appropriate position, and the opening / closing operation of the valve body 12 is reliably performed. In particular, the opening / closing operation of the air suction hole 15 is reliable.

Furthermore, the valve body 12 can be fixed only by disposing the valve body 12 on the cap base 3 and mounting the cap 4 on the cap base 3, and the structure is simple and the assembly is easy. You can

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

A cap base 3 is mounted on the mouth tube portion 2 of the container body 1, and a cap 4 is fitted on the cap base 3 so as to be rotatable and immovable vertically.

A first annular wall 5 is formed on the upper surface of the cap base 3, and a step portion 6 is formed outside the first annular wall 5.

A second annular wall 7 is formed outside the step portion 6, and a flow hole 8 is formed between the step portion 6 and the second annular wall 7.

On the other hand, a spout hole 9 is formed in the center of the cap 4, and a pipe body 10 fitted to the first annular wall 5 is vertically provided at the edge of the spout hole 9.

Further, the tube body 10 and the first annular wall 5 are respectively provided with communication holes 11 which communicate with each other at a predetermined angle.

A valve body 12 is inserted between the cap base 3 and the cap 4.

The packing portion 13 formed on the outer periphery of the valve body 12 is attached to the second
An annular valve 14 is held between the annular wall 7 and the cap 4 so as to be fixed, and an annular valve 14 that extends elastically into contact with the upper surface of the step 6 extends inside the packing 13.

An arc-shaped air suction hole 15 is formed in the joint portion between the packing portion 13 and the annular valve 14 over substantially the entire circumference thereof, and the packing portion 13 and the annular valve 14 have two connecting portions 17, which are opposed to each other, Connected at 17. Therefore, the annular valve 14 is easily bent downward.

On the other hand, on the back surface of the top plate portion 4a of the cap 4, an annular convex portion 16 that elastically contacts the air suction hole 15 and opens and closes the air suction hole 15 is formed. The annular convex portion 16 is formed with a width that can completely seal the air suction hole 15.

In the above structure, when the cap 4 is first rotated to a predetermined position when pouring out the contents, the communication holes 11 are communicated with each other, so that the contents can be poured out.

Here, when the container body 1 is squeezed, the contents are distributed through the circulation holes 8
And flows out to the upper surface of the cap base 3. Then, the content pushes the annular valve 14 open, and is poured out from the communication hole 11 through the pouring hole 9 as shown by the arrow A.

When the container body 1 is released, the container body 1 tries to return to its original shape, so that the inside of the container becomes a negative pressure and the annular valve
The inner edge of 14 is in close contact with the step 6 and is closed.

At the same time, the annular valve 14 moves downward due to the negative pressure, the joint portion between the packing portion 13 and the annular valve 14 is deformed, and a gap is created between the annular valve 14 and the cap 4. Then, the air suction hole 15 that was in contact with the annular convex portion 16 separates from the annular convex portion 16, and the air flows in as shown by the arrow B.

By the way, since the air inflow hole 15 is formed in the vicinity of the outer peripheral edge of the valve body 12 over substantially the entire circumference thereof, the opening area as an air passage is large. As a result, at the time of inhaling the air, the air quickly flows into the container body 1, the inside of the container body 1 quickly becomes equal to the atmospheric pressure, and the container body 1 quickly returns to its original shape. Therefore, when a large amount of content is to be poured out, the pouring operation can be repeated many times continuously and quickly.

As described above, the annular convex portion 16 is operated by utilizing the fact that the annular valve 14 is operated upward during discharge and the annular valve 14 is moved down during intake.
Since the air suction hole 15 that is in contact with the air intake port is operated so as to serve as an air inflow path, the structure is simpler than that in which the supply and discharge valves are independently provided, and the manufacturing cost is low.

Further, since the packing portion 13 located adjacent to the air inflow hole 15 provided over substantially the entire circumference is sandwiched and fixed by the second annular wall 7 and the cap 4, the valve body 12 is always suitable. The valve body is held in the position, and the opening / closing operation of the valve element is reliably performed. In particular, the opening / closing operation of the air suction hole 15 is reliable.

Further, the valve body 12 can be fixed only by disposing the valve body 12 on the cap base 3 and mounting the cap 4 on the cap base 3, and the structure is simple and the assembly is easy. it can.

[Effect of device]

According to the present invention, since the packing portion of the valve body is sandwiched between the second annular wall and the cap, the valve body is always held in the proper position and can be stably operated. Moreover, the fixing structure of the valve body is simple, and the assembly can be facilitated.

In addition, since the air intake hole is formed in an arc shape at the joint between the packing part and the annular valve over almost the entire circumference, the opening area of the air passage can be increased, and the repeating of the pouring operation can be repeated quickly and smoothly. It can be carried out.

Further, since the vertical movement of the annular valve is used to perform the discharge and the intake, the structure can be simplified.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention, FIG. 1 is a sectional view, FIG. 2 is a plan view of a valve body, FIG. 3 is a sectional view showing a conventional pouring cap, and FIG. FIG. 5 and FIG. 5 are sectional views showing the pouring cap previously proposed by the applicant. 1 ... Container main body, 2 ... Port cylinder part 3 ... Cap base, 4 ... Cap, 4a ... Top plate part, 5 ... First annular wall, 6 ... Step part, 7 ... Second part Annular wall, 8 ... Flow hole, 9 ... Spout hole, 10 ... Tube, 11 ... Communication hole, 12 ... Valve, 13 ... Packing part, 14 ... Ring valve, 15 ... Air Suction hole, 16 ... Ring-shaped convex part.

Claims (1)

[Scope of utility model registration request] 1. A pouring cap in which a cap base 3 is attached to a mouth tube portion 2 of a container body 1, and a cap 4 is rotatably and immovably provided on the cap base 3. A first annular wall 5 is formed on the upper surface of the cap base 3, a step portion 6 is formed outside the first annular wall 5, and a second annular wall 7 is formed outside the step portion 6, A flow hole 8 is formed between the step 6 and the second annular wall 7, while a spout hole 9 is formed in the center of the cap 4, and the first annular wall is formed at the edge of the spout hole 9. 5, a pipe body 10 that fits into the pipe 5 is provided vertically, and further, a communication hole 11 is formed in the pipe body 10 and the first annular wall 5 so that they communicate with each other at a predetermined angle. The valve body 12 is inserted between the cap 4 and the packing portion 13 formed on the outer periphery of the valve body 12 and sandwiched by the second annular wall 7 and the cap 4. Secure it with this packing 13
An annular valve 14 that resiliently contacts the upper surface of the step 6 inwardly of
And an arc-shaped air suction hole 15 which is opened and closed by elastically abutting the top plate portion 4a of the cap 4 at the joint portion between the packing portion 13 and the annular valve 14 over substantially the entire circumference thereof. A pouring cap, characterized in that