JPH069972Y2 - 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.

[Prior Art] Conventionally, various kinds of this kind of pouring cap have been provided, and 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 the upper plate portion 104 of the cap base 103 to be attached to the mouth cylinder portion 102 of the cap cylinder 103, and slit portions 107 are formed in the annular shield walls 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 structure, the valve operates stably and the valve is self-cleaned as the rotary cap rotates, but there is a problem that the structure is 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.

A second annular wall 7 is formed outside the stepped portion 6, and a peripheral wall 8 having a diameter smaller than that of the second annular wall 7 is formed in the lower inside of the second annular wall 7. Then, the step portion 6 and the peripheral wall 8
A through hole 9 is formed between

On the other hand, a pouring hole 10 is formed in the center of the cap 4, and a pipe body 11 fitted to the first annular wall 5 is vertically provided at an edge portion of the pouring hole 10.

Further, the tube body 11 and the first annular wall 5 are respectively provided with communication holes 12 which communicate with each other at a predetermined angle.

Then, the valve element 13 is inserted between the cap base 3 and the cap 4.

The packing portion 14 formed on the outer periphery of the valve body 13 is
It is clamped and fixed by the annular wall 7 and the cap 4. Inside the packing portion 14, a cylindrical valve portion 15 that elastically contacts the inside of the peripheral wall 8 is provided, and the cap 4 is provided between the upper edge of the cylindrical valve portion 15 and the packing portion 14. The suction hole 16 separated from the top plate portion 4a is formed in an arc shape over substantially the entire circumference.

An annular valve 17 extending from the tubular valve portion 15 to the upper surface of the stepped portion 6
And the inner edge of the annular valve 17 is elastically brought into contact with the upper surface of the stepped portion 6.

[Action]

When the cap 4 is rotated to a predetermined position, the communication hole 12 is communicated with the cap 4 so that the contents can be poured out.

Here, when the container body 1 is squeezed, the contents are communicated with the communication hole 9
And flows out to the upper surface of the cap base 3. Then, the content pushes up the annular valve 17 and is discharged from the communication hole 12 through the discharge hole 10 as shown by the arrow A.

Then, when the hand is released from the container body 1, the container body 1 tries to return to the original shape, so that the inside of the container becomes a negative pressure.

Then, the inner edge of the annular valve 17 comes into close contact with the step portion 6 and is closed. On the other hand, the tubular valve portion 15 is curved inward by the negative pressure and is separated from the peripheral wall 8. Then, a gap is created between the tubular valve portion 15 and the peripheral wall 8, and air flows in as shown by an arrow B. The inflow hole 16 is formed in the vicinity of the outer peripheral edge of the valve body 13 over substantially the entire circumference thereof, and since the tubular valve portion 15 is provided adjacent to the inflow hole 16, the opening area of the air passage is increased. Is large and air flows in quickly. As a result, the pouring operation can be repeated continuously and quickly.

Moreover, since the packing portion 14 located adjacent to the inflow hole 16 is sandwiched and fixed by the second annular wall 7 and the cap 4,
The valve body 13 is always held in an appropriate position, and the opening / closing operation of the valve body 13 is reliably performed.

Further, the valve body 13 can be fixed only by disposing the valve body 13 on the upper part of the cap base 3 and mounting the cap 4 on the cap base 3, so that 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 screwed into the mouth tube portion 2 of the container body 1, and a cap 4 is rotatably mounted on the upper surface of the cap base 3 so as not to move up and down.

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

A second annular wall 7 is formed on the outer side of the stepped portion 6, and a peripheral wall 8 having a smaller diameter than the second annular wall 7 is formed on the inner lower portion of the second annular wall 7.

A flow hole 9 is formed between the step 6 and the peripheral wall 8.

On the other hand, a pouring hole 10 is formed in the center of the cap 4, and a pipe body 11 fitted to the first annular wall 5 is vertically provided at an edge portion of the pouring hole 10.

Further, the tube body 11 and the first annular wall 5 are provided with communication holes 12 which communicate with each other at a predetermined angle.

A valve element 13 is inserted between the cap base 3 and the cap 4.

The valve body 13 has a packing portion 14 on the outer circumference thereof, and the packing portion 14 is sandwiched and fixed by the second annular wall 7 and the cap 4. Inside the packing part 14, a cylindrical valve part 15 is provided which elastically contacts the inside of the peripheral wall 8. Between the upper edge of the cylindrical valve part 15 and the packing part 14. A suction hole 16 is formed in an arc shape over substantially the entire circumference, and the upper edge of the tubular valve portion 15 and the packing portion 14 are connected by eight coupling portions 18 provided at equal intervals in the circumferential direction. . The suction hole 16 is separated from the top plate portion 4 a of the cap 4. An annular valve 17 extends from the tubular valve portion 15 to the upper surface of the step portion 6, and the inner edge of the annular valve 17 is elastically brought into contact with the upper surface of the step portion 6.

In use, when the cap 4 is first rotated to a predetermined position, the communication holes 12 communicate with each other and the contents can be poured out.

Here, when the container body 1 is squeezed, the contents are filled with the circulation holes 9
And flows out to the upper surface of the cap base 3. Then, the content pushes up the annular valve 17 and is discharged from the communication hole 12 through the discharge hole 10 as shown by the arrow A.

Then, when the hand is released from the container body 1, the container body 1 tries to return to the original shape, so that the inside of the container becomes a negative pressure.

Then, the inner edge of the annular valve 17 comes into close contact with the step portion 6 and is closed. On the other hand, the tubular valve portion 15 is curved inward by the negative pressure and is separated from the peripheral wall 8. Then, a gap is created between the two, air flows in as shown by arrow B, and the pressure inside the container body 1 becomes equal to the atmospheric pressure.

By the way, the inflow hole 16 is formed in the vicinity of the outer peripheral edge of the valve body 13 over substantially the entire circumference thereof, and since the cylindrical valve portion 15 is provided adjacent to this inflow hole 16, it serves as an air passage. Has a large opening area. 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, since the packing portion 14 located adjacent to the inflow hole 16 provided over substantially the entire circumference is fixed by being sandwiched between the second annular wall 7 and the cap 4, the valve body 13 is fixed. The position accuracy of is high and is always maintained at an appropriate position, and the opening / closing operation of the valve element is reliably performed.

Further, the inner edge of the annular valve 17 is pressed against the step portion 6 with an appropriate pressure,
Since the tubular valve portion 15 is pressed against the inside of the peripheral wall 8 with an appropriate pressure, the hermeticity at all times is very good and liquid leakage does not occur.

Further, the valve body 13 can be fixed only by disposing the valve body 13 on the upper part of 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, the packing part of the valve body is sandwiched between the second annular wall and the cap, and the inside of the packing part has a cylindrical shape that elastically contacts the inside of the peripheral wall. Since the valve portion is provided and the suction hole is formed between the upper edge of the tubular valve portion and the packing portion, the valve body can be always held in an appropriate position for stable operation and the structure is simplified. And can be easily assembled.

Further, the suction hole is formed adjacent to the packing part in an arc shape over almost the entire circumference, and the cylindrical valve part is provided adjacent to the suction hole, so that the opening area of the air passage can be increased and The operation can be repeated continuously and quickly.

[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 ... Circumferential wall, 9 ... Flow hole, 10 ... Pouring hole, 11 ... Pipe, 12 ... Communication hole, 13 ... Valve, 14 ... Packing part, 15 ... Cylindrical Valve part, 16 ... Suction hole, 17 ... annular valve.

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 peripheral wall 8 having a diameter smaller than that of the second annular wall 7 is formed in the inner lower portion of the second annular wall 7, and a flow hole 9 is formed between the step portion 6 and the peripheral wall 8, while at the center of the cap 4. Form the pouring hole 10,
A pipe body fitted to the first annular wall 5 at the edge of the pouring hole 10.
11 is provided vertically, and further, a communication hole 12 is provided in the pipe body 11 and the first annular wall 5 so that they communicate with each other at a predetermined angle, and a valve is provided between the cap base 3 and the cap 4. The body 13 is inserted, and the packing portion 14 formed on the outer periphery of the valve body 13 is clamped and fixed by the second annular wall 7 and the cap 4, and the inside of the peripheral wall 8 is inside the packing portion 14. A cylindrical valve portion 15 that elastically contacts the cylindrical valve portion 15 is provided, and a suction hole 16 that is separated from the top plate portion 4a of the cap 4 is formed between the upper edge of the cylindrical valve portion 15 and the packing portion 14. An annular valve 17 is formed in an arc shape over the entire circumference and extends from the tubular valve portion 15 to the upper surface of the step portion 6, and the inner edge of the annular valve 17 is resiliently attached to the upper surface of the step portion 6. A pouring cap characterized by being brought into contact with.