JP4386658B2 - Push-pull dispensing cap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pouring cap that is welded to an opening of a bag body filled with food, detergent, etc., and more specifically, push-pull that opens and closes a spout by sliding the cap. It relates to the dispensing cap.
[0002]
[Prior art]
Conventionally, there is a lift type double cap that opens and closes the spout by sliding the cap. The cap has a cylindrical portion protruding from the top plate portion of the lower cap screwed into the bottle mouth portion, and a plug body projecting from the center of the cylindrical portion, and the cylindrical portion and plug body of the top plate portion A required number of outlets are provided between the upper cap and the upper cap having inner and outer cylinders fitted into the cylindrical portion so as to sandwich the cylindrical wall, and the center of the upper cap and the lower cap is provided. A gap between the cap and the outlet is communicated with the outlet, and a spout opening is provided at the upper end of the upper cap by the cap of the lower cap. A friction protrusion is formed, and an undercut formed on the inner side of the lower outer cylinder of the upper cap and an undercut on the outer upper side of the lower cap cylinder are locked when the cap is opened (for example, Patent Document 1). ,reference).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 49-77057.
[0004]
[Problems to be solved by the invention]
In the conventional example, when the cap is slid and the spout is opened, the fluid in the container flows between the stopper and the cylindrical portion of the lower cap, and further between the stopper and the inner cylinder of the cap. It is discharged from the spout through the upper flow path.
However, the plug body is a rod-like body located on the axial center of the cylindrical portion, and the diameter thereof is formed so as to be inserted into the spout, so that the cross-sectional area of the lower flow path is The cross-sectional area of the rod-shaped body is subtracted from the cross-sectional area of the rod-shaped portion, and the cross-sectional area of the upper flow path is a value obtained by subtracting the cross-sectional area of the rod-shaped body from the cross-sectional area of the inner cylinder. Therefore, although both the said flow paths become narrow, since the diameter of an inner cylinder is smaller than the diameter of a cylindrical part, an upper flow path becomes narrower than a lower flow path.
The stopper is fixed to the lower part of the inner surface of the cylindrical portion via a support piece. Since the support piece is plural and is in the form of a horizontal plate, the lower flow path in the portion where the support piece is located. The cross section of is further reduced, and the flow path in this portion is further narrowed.
[0005]
When the flow path becomes narrow in this way, it becomes difficult to smoothly pour out the fluid, but the difficulty is particularly high in the case of high-viscosity contents such as jelly-like beverages, shampoos, and liquid miso. Will increase further and problems such as clogging of the contents in the flow path or poor liquid return will occur.
[0006]
In view of the above circumstances, an object of the present invention is to enable the contents to be poured out smoothly. Another object is to prevent clogging or the like in the dispensing cylinder from occurring.
[0007]
[Means for Solving the Problems]
The present invention includes a cap that is slidably fitted to a pour tube; a pour port that penetrates the top plate of the cap; and is disposed inside the pour tube and closes the pour port when the lid is closed A push-pull dispensing cap comprising: a plug body to be connected; and a support piece for connecting the plug body to the inner surface of the dispensing cylinder; and the support pieces are disposed at intervals in the circumferential direction. A plurality of slanted support pieces having elasticity, the plurality of slanted support pieces extending so as to spread from the plug body side toward the spout buttock side, and having a lower end formed in an arc shape. and said that you are.
The axial height of the plug of the present invention is ½ or less of the axial height of the support piece.
[0008]
The present invention includes a spout body having an outlet provided at one end of the pouring tube and a flange portion provided at the other end; a cap slidably fitted to the pouring tube; and penetrating the top plate of the cap. A push port provided on the inside of the pouring tube and closing the pouring when the lid is closed; and a support piece for connecting the plug to the inner surface of the pouring tube A pull-out cap; the plug is disposed at a central position protruding from an outlet of the pouring tube; and the support pieces are elastically arranged at intervals in the circumferential direction. It is a thin inclined support piece, and the plurality of thin inclined support pieces extend so as to spread from the plug body side toward the spout buttock side, and the lower end side thereof is formed in an arc shape. To do.
[0009]
The plug of the present invention is characterized in that the cap is brought into contact with the inner surface of the top plate of the cap and the spout is closed. The plug of the present invention is characterized in that it is inserted into the spout of the cap so as to close the lid and closes the spout.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The inventor of the present invention is that the plug body is a rod-shaped body, and that the plurality of support pieces holding the plug body are horizontally stretched, which narrows the width of the flow path and causes a sudden outflow resistance. I thought. Therefore, as the support piece, a narrow inclined support piece, i.e., arranged in the circumferential direction at intervals, is provided in a direction along the content outflow direction, and is inclined in a divergent form from the plug body so as to incline the dispensing cylinder. By using the support piece fixed to the inner wall, the occurrence of a rapid outflow resistance is prevented, and the fluid resistance is made smaller than that of the horizontal support piece of the conventional example.
Further, by making the plug body shorter than the conventional example, for example, ½ or less of the axial length of the support piece, it is possible to secure a flow passage having a larger cross-sectional area than the conventional example. To reduce fluid resistance.
[0011]
【Example】
A first embodiment of the present invention will be described with reference to FIGS.
The spout is injection-molded with a synthetic resin such as polyethylene or polypropylene, and includes a spout body 1 and a cap 20.
[0012]
The spout body 1 includes a pour tube 3 and a flange portion 5 provided at the rear end portion of the pour tube 3 to which a pouch is welded.
A stopper 6 protrudes from the lower side of the outer peripheral surface of the dispensing tube 3, and a locking portion 7 is provided at the upper end side.
[0013]
A plug body 8 is disposed on the axis 3 a of the dispensing cylinder 3. The plug body 8 protrudes from the outlet 9 of the dispensing tube 3, and the diameter of the plug body 8 is appropriately selected as necessary, but is at least larger than the diameter of the outlet 21 of the cap 20. .
A recess 10 smaller than the diameter of the spout 21 is provided at the center of the surface of the plug 8.
[0014]
The plug body 8 is connected to the inner wall 3 b of the dispensing tube 3 through a thin inclined support piece 11. This support piece 11 is extended so that it may spread toward the collar part 5 side from the plug body 8 side, The lower end part side is formed in circular arc shape.
[0015]
Four thin inclined support pieces 11 are provided at equal intervals in the circumferential direction, and the lower ends thereof are fixed to the substantially middle part of the inner wall 3b of the dispensing tube 3. The mounting position, the number, the shape, and the like of the support piece 11 are appropriately selected as necessary.
[0016]
The cap 20 includes a top plate 23, an inner cylinder 25 erected on the inner surface 23 a of the top plate 23, and an outer cylinder 26 provided concentrically with the inner cylinder 25. The both cylinders 25 and 26 sandwich the dispensing cylinder 3 of the spout body 1.
[0017]
A liquid dripping prevention part 22 having a bowl-shaped cross section is provided at the center of the top surface of the top plate 23, and a spout 21 is provided through the center. The spout 21 communicates with the plug housing portion 27, and the spout 21 is closed by inserting the plug 8 into the plug housing portion 27. A seal portion 25 a is provided at the distal end portion of the inner cylinder 25, and an engaging portion 26 a that engages with the locking portion 7 of the dispensing cylinder 3 is provided at an intermediate portion of the outer cylinder 26.
[0018]
Next, the operation of this embodiment will be described.
The spout pouch P is filled with a fluid, for example, a jelly-like beverage 30. When drinking this beverage 30, the cap 20 is pushed up. Then, the cap 20 slides, the spout 21 is separated from the plug 18 and opens, and the engaging portion 26 a of the outer cylinder 26 is locked to the locking portion 7 of the dispensing cylinder 3.
[0019]
At this time, the inner cylinder 25 of the cap 20 slides while the seal portion 25 a is in contact with the inner wall 3 b of the dispensing cylinder 3.
In this state, as shown in FIG. 6, when the pouch P is tilted, the jelly-like beverage 30 in the pouch P has a flow path 32 formed in the bowl 5, a flow path 33 in the dispensing tube 3, It is discharged from the spout 21 through the flow path 34 in the inner cylinder 25.
[0020]
At this time, there is no obstacle to the flow in the flow path 32, and there are four slanted support pieces 11 in the flow paths 33 and 34. Is narrow and extends so as to spread along the content outflow direction from the plug body 8 side toward the flange 5 side, so that the cross-sectional area of the flow paths 33 and 34 is significantly larger than that of the conventional example. Also, the fluid resistance does not increase rapidly. Therefore, the beverage 30 is smoothly discharged without being clogged in the spout.
[0021]
After drinking the beverage 30, the pouch 30 is returned to the original vertical state, the cap 20 is pushed down, and the spout is brought into the state shown in FIG.
At this time, the beverage 30 in the flow paths 32 to 34 quickly flows into the pouch P, and the plug body 8 is fitted into the plug body housing portion 27 and comes into contact with the inner surface 23a of the top plate 23. 21 is closed. The lower end of the outer cylinder 26 contacts the stopper 6.
[0022]
Since the thin inclined support piece 11 is elastic, the stopper 8 is pressed against the inner surface 23a of the top plate 23 when the lid is closed, so that the sealing performance is improved. Therefore, even if the pouch P is defeated, the beverage 30 does not leak out.
[0023]
A second embodiment of the present invention will be described with reference to FIG. 6. The same reference numerals as those in FIGS. 1 to 5 have the same names and functions.
The difference between the present embodiment and the first embodiment is that the diameter of the spout 41 is larger than that of the spout 21 of the first embodiment, and the plug 48 is placed in the spout 41 when the lid is closed. It is inserted and it closes the spout 41.
[0024]
The embodiment of the present invention is not limited to the above. For example, this push-pull dispensing cap is screwed into the mouth of a container, for example, a plastic bottle or a glass bottle, instead of being welded to the container (pouch). You may wear it.
Moreover, you may form the axial direction height of a plug body below 1/2 of the axial direction height of a support piece.
[0025]
【The invention's effect】
In the present invention, since the support pieces are a plurality of slanted inclined support pieces arranged at intervals in the circumferential direction, the cross-sectional area of the flow path in the dispensing cylinder is smaller than that of the horizontal support piece of the conventional example. While being able to enlarge, generation | occurrence | production of sudden content outflow resistance can be prevented. Therefore, the contents can be poured out smoothly and the contents are not clogged in the dispensing cylinder.
In the present invention, the plug body is provided at a central position protruding from the outlet of the dispensing cylinder, and the support pieces are a plurality of slanted inclined support pieces arranged at intervals in the circumferential direction. The cross-sectional area of the flow path in the dispensing cylinder can be increased.
Therefore, the contents can be poured out smoothly and the contents are not clogged in the dispensing cylinder.
[Brief description of the drawings]
FIG. 1 is a partial front sectional view showing a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a cap.
FIG. 3 is a plan view of the main part of the spout body.
FIG. 4 is a longitudinal sectional view of a spout body.
FIG. 5 is a longitudinal sectional view showing a state at the time of dispensing.
FIG. 6 is a partial longitudinal sectional front view showing a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Spout main body 3 Outflow pipe | tube 8 Plug body 11 Thin inclined support piece 20 Cap 21 Outlet 23 Top plate 32 Channel 33 Channel 34 Channel

Claims (5)

A cap slidably fitted to the dispensing tube; a spout passing through the top plate of the cap; a plug disposed inside the dispensing tube and closing the spout when closed A push-pull pouring cap comprising a support piece for connecting the plug to the inner surface of the pouring tube;
The support pieces are a plurality of thin inclined support pieces having elasticity arranged at intervals in the circumferential direction, and the plurality of thin inclined support pieces are directed from the plug body side toward the spout buttocks side. A push-pull pouring cap characterized in that the lower end side is formed in an arc shape . 2. The push-pull dispensing cap according to claim 1, wherein the axial height of the plug body is ½ or less of the axial height of the support piece. A spout body provided with an outlet at one end of the extraction tube and a flange at the other end; a cap slidably fitted to the extraction tube; a spout through the top plate of the cap; A push-pull pouring cap provided on the inside of the pouring tube and closing the pouring port when the lid is closed; and a support piece for connecting the plug to the inner surface of the pouring tube Because
The stopper is disposed at a central position protruding from an outlet of the dispensing tube;
The support pieces are a plurality of thin inclined support pieces having elasticity arranged at intervals in the circumferential direction, and the plurality of thin inclined support pieces are directed from the plug body side toward the spout buttocks side. A push-pull pouring cap characterized in that the lower end side is formed in an arc shape . The push-pull dispensing cap according to claim 1, 2 or 3, wherein the plug body abuts on the inner surface of the top plate of the cap when the lid is closed to close the spout. 4. The push-pull dispensing cap according to claim 1, wherein the plug is inserted into a spout of the cap when the lid is closed to close the spout.

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