JP4388650B2 - Push-pull lid - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a push-pull opening / closing lid that is composed of a cap body and a tip that can be slid up and down along the outer cylinder portion of the cap body, and that allows contents to be poured out by moving the tip up and down. The present invention relates to a push-pull opening / closing lid in which it is effectively prevented that a tongue is sandwiched between a tip and an inner cylinder end even when a tip is directly attached to the tip and the tip is moved up and down.
[0002]
[Prior art]
In recent years, a so-called push-pull type container lid in which a content liquid outlet is previously formed in the lid has been widely used as a cap for various beverages. The basic structure of this cap is, for example, as shown in Japanese Patent Application Laid-Open No. 11-180461, etc., having a hollow space communicating with the lower space of the top plate portion in the top plate portion of the container lid and extending upward. The outer cylinder part is provided, and a columnar body (inner cylinder part) held on the inner surface of the outer cylinder part so as not to close the hollow space is provided in the outer cylinder part, A discharge path for the liquid in the container is formed between the inner surface of the outer cylinder part and the outer surface of the columnar body, and the outer cylinder part can be slid up and down and has a discharge opening on the top surface. A valve member (chip) having When this valve member is in a normal state (tip position is downward), the dispensing opening is fitted to the upper end of the columnar body to completely block the dispensing path for the liquid in the container. When sliding, the container content liquid pouring path is opened, the container content liquid is poured out from the pouring path, and when stopping the pouring, the valve member is slid to return to the normal state. .
[0003]
[Problems to be solved by the invention]
In the push-pull type cap having such a configuration, the tip is generally opened and closed by moving the tip up and down manually, but the tip includes a tip portion that can be moved up and down, which is a valve member of the cap. It is possible to directly drink the content liquid by sliding it upward, and after the end of drinking, the tip is slid downward with the tip part still in the mouth, and the plug is closed.
[0004]
FIG. 1 is a side view showing a state in which a tip is slid upward in a conventional push-pull type cap (the left half is a cross-sectional side view). , Outer cylinder part 2, inner cylinder part 3, annular wall 4, skirt part 5 located below the annular wall, top plate part 6 connecting the lower end of outer cylinder part 2 and the upper end of annular wall 4, and inner cylinder part 3 as the top plate It is formed from a bridge 7 connecting the part 6 and the annular wall 4. In addition, the tip 20 generally has an extraction opening 22 in the center of the top portion 21 and is suspended from the top surface and is inserted between the inner cylinder portion and the outer cylinder portion of the cap body. 23, and an outer ring 24 that is coaxial with the inner ring 23 and is located outside the outer cylindrical portion 2 of the cap body.
As described above, in the push-pull type cap, when the tip 20 which is a valve member is in a normal state (the tip position is downward), the upper portion of the inner cylindrical portion 3 is fitted with the dispensing opening 22, The content liquid pouring path 9 is closed, while the tip 20 is slid upward to allow the chip pouring opening 22 to communicate with the pouring path 9 and the content liquid is poured out. For this reason, as shown in FIG. 1, a gap H is formed as a flow path for the content liquid between the lower edge 25 of the dispensing opening and the inner cylinder portion tip 3a.
[0005]
Since this interval H is formed in an annular shape continuously around the entire circumference between the lower edge 25 of the dispensing opening and the inner cylinder tip 3a, the tip of the tongue may enter. In particular, if the contents liquid is taken with the tip in the mouth, the inside of the container is depressurized. If the suction for drinking the contents liquid is stopped, the tongue may be sucked into the container. . If the tip is accidentally slid downward in such a state, the tip of the tongue may be pinched. In particular, a small child has a small tongue, so it is easy to enter this interval, and there is a risk that the tip may be slid downward in this state.
Further, when such a push-pull type cap is used while eating something, if the inside of the container is in a decompressed state, a part of the food in the mouth may flow back into the container together with the content liquid.
[0006]
Therefore, the object of the present invention is to prevent the tongue from entering between the lower edge of the tip dispensing opening and the tip of the inner cylinder, prevent the tongue from being pinched, and ensure a predetermined dispensing flow rate. Another object of the present invention is to provide a push-pull opening / closing lid that can prevent backflow of food.
[0007]
[Means for Solving the Problems]
According to the present invention, the skirt portion fastened to the container mouth portion, the annular wall for fastening the outer lid having a smaller diameter than the skirt portion, the top plate portion on the upper portion of the annular wall, and the outer plate provided above the top plate portion. A cylindrical portion, an inner cylindrical portion provided coaxially with the outer cylindrical portion and smaller in diameter than an inner diameter of the outer cylindrical portion, an opening provided between the outer cylindrical portion and the inner cylindrical portion, an outer cylindrical portion and an inner cylindrical portion A cap body composed of a bridge connecting the two parts, a cylinder part that can slide up and down along the outer cylinder part, a top part connected to the upper part of the cylinder part, and a liquid-tightness at the upper part of the inner cylinder part in the lowered position A push-pull opening / closing lid having a tip comprising a top opening for pouring at the center of the top, and a rib extending in the horizontal direction across the opening is formed in the pouring opening of the tip; and The inner end of the top is formed with a band for sealing with the inner cylinder extending downward. Pull-off lid to is provided.
In the push-pull opening / closing lid of the present invention, the rib is preferably provided through a step from the upper surface of the top portion, and the rib has a shape of a single rib, a double rib, a Y-shaped rib or a cross-shaped rib. It is preferable that
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, in the push-pull type cap, the chip dispensing opening is formed into a rib that extends horizontally across the dispensing opening and is subdivided into a space that cannot be inserted even by the tongue of a child. The point is an important feature.
That is, as described above, in the conventional push-pull type cap, an annular space that is continuous over the entire circumference is formed between the lower edge of the dispensing opening and the tip of the inner cylinder portion. The tip was able to penetrate. For this reason, if the tip is accidentally slid downward with the tongue entering the space, the tip and the tip of the inner cylinder may be pinched. On the other hand, in the present invention, since the dispensing opening is shielded by the rib extending in the horizontal direction, the tongue does not enter the inside of the chip, and the pinching of the tongue is effectively prevented.
[0009]
In the present invention, such a rib that horizontally crosses the pouring opening is provided, so that the liquid tightness is maintained by fitting the tip of the inner cylinder portion into the pouring opening like a conventional cap. Instead, the sealing band hanging from the inner end portion of the top plate portion is in pressure contact with the upper outer surface of the inner cylinder portion, so that the spout can be shut off and liquid tightness can be secured.
As long as the rib crosses the pouring opening horizontally, various forms can be adopted, but if a rib that subdivides the pouring opening is formed, the tip is included in the mouth while eating something. It is also possible to obtain an effect that the food in the mouth can be prevented from flowing back when the content liquid is drunk. That is, as described above, when the content liquid is taken with the tip in the mouth, the inside of the container is in a reduced pressure state, and if the suction of the content liquid is stopped in this state, the backflow of the content liquid tends to occur. In the present invention, when the dispensing opening is subdivided by the ribs, the reverse flow can be prevented for those larger than the subdivided opening.
[0010]
The present invention will be described based on specific examples shown in the accompanying drawings.
FIG. 2 is a side view (a left half is a cross-sectional side view) showing a state where an outer lid is covered in a cap which is a preferred example of the push-pull opening / closing lid of the present invention, and FIG. 3 is a chip in the cap of the present invention. FIG. 4 is a side view showing the state of sliding upward. FIG. 4 shows an example of the chip of the present invention, (A) is a top view, and (B) is a side view. The left half is a side sectional view), (C) is a bottom view, FIG. 5 is an enlarged perspective view showing the tip portion in the cap of the present invention, (A) is a state where the tip is slid upward, (B) shows a state where the chip is slid downward.
[0011]
In the cap of the present invention, the basic configuration is the same as that of a conventional push-pull type cap except for the configuration of the chip. As shown in FIG. 2, the cap of the present invention includes a cap body 1 that is fitted to the container mouth portion, a tip 20 that is a valve member that is fitted to the cap body 1 so as to be movable up and down, a tip, and a cap body top plate portion. And an inner cap 40 fitted to the container mouth before attaching the cap body 1 to the container mouth.
The cap body represented as a whole by 1 generally includes the outer cylinder part 2, the inner cylinder part 3, the annular wall 4, the skirt part 5 positioned below the annular wall, the lower end of the outer cylinder part 2 and the annular wall 4 Are formed from a bridge plate 7 that connects the top plate portion 6 that connects the upper end of each of the two, and the inner cylinder portion 3 to the top plate portion 6 and the annular wall 4. The inner surface of the skirt portion 5 is provided with a screw portion 8 for screwing with a container mouth portion (not shown). The upper part of the outer cylinder part 2 is open | released, and the extraction path 9 for content liquid extraction is formed by the outer surface of the outer cylinder part 2 and the outer surface of the inner cylinder part 3. FIG.
[0012]
The tip 20 has a dispensing opening 22 in the center of the top 21, hangs down from the top 21, and is coaxial with the inner ring 23 and the inner ring 23 that are inserted between the inner cylinder part and the outer cylinder part of the cap body. The basic configuration of the outer ring 24 positioned outside the outer cylinder portion 2 of the cap body is the same as that of a tip used in a conventional push-pull cap.
Further, the inner surface of the lower end of the outer ring 24 of the chip 20 is engaged with the engagement protrusion 10 provided on the outer surface of the upper end of the outer cylinder so that the chip 20 does not easily come off from the cap body. The protrusion 25 is formed, and the upper wall thickness of the outer ring is thicker than the lower wall thickness, so that the transition between the closed state and the open state can be confirmed by finger touch or sound. It becomes possible. An annular protrusion 26 for gripping is formed on the outer peripheral edge of the top portion 21 so as to facilitate the vertical movement of the chip.
[0013]
In the present invention, a rib 27 is provided in the pouring opening 22 so as to cross the horizontal direction. In the specific example shown in FIG. 4, the rib 27 is Y-shaped. This effectively prevents the tongue from entering.
Further, as shown in FIG. 3, the rib 27 is preferably provided so as to be positioned lower by L than the upper surface of the top portion 21 of the chip. Thereby, it is avoided that an external force is directly applied to the rib, and the rib can be prevented from being damaged.
[0014]
In the present invention, an annular sealing band 29 hangs from the inner end 28 of the top 21. As shown in FIG. 2, in the state where the tip is located below, the inner surface of the sealing band 29 is in pressure contact with the upper outer surface of the inner cylinder portion, thereby blocking the dispensing passage 9 and ensuring liquid tightness. Yes. On the other hand, as shown in FIG. 3, in the state where the tip is located above, a space H is formed between the lower end 29 a of the sealing band 29 and the inner cylindrical portion tip 3 a, and communicates with the pouring path 9. The liquid can be poured out.
[0015]
The outer lid 30 covers the top of the chip and the cap body for the purpose of hygiene, commercial value, or prevention of intrusion of cooling water after hot packing, and hangs down from the top plate portion 31 and the top plate portion. It consists of a skirt part 32. An annular protrusion 33 is provided on the inner surface of the top plate portion to contact the outer periphery of the dispensing opening 22 of the chip 20 to enhance the sealing performance, thereby preventing leakage of the content liquid. Furthermore, an engagement protrusion 34 that engages with the engagement protrusion 11 provided on the annular wall 4 of the cap body is provided on the inner surface of the lower end of the skirt portion so that the outer lid is not easily detached from the cap body.
[0016]
The inner plug 40 includes an annular side wall 41 and a bottom surface portion 42 that closes the lower end of the annular side wall 41, and a grip portion 43 is provided on the upper surface of the bottom surface portion 42. Further, a flange portion 44 is formed at the upper end of the annular side wall 41, and a thin peripheral edge portion 45 is formed over the entire outer end portion of the flange portion 44. The inner plug 40 is fitted into the container mouth, the annular side wall 41 is in close contact with the inner surface of the container mouth, and the flange 44 is sandwiched between the upper end of the container mouth and the annular wall 4 of the cap body. Therefore, the sealing performance of the container is extremely excellent while the inner stopper is fitted in the container mouth.
[0017]
In the push-pull type cap of the present invention, the shape of the rib provided in the chip dispensing opening is not limited to that shown in FIGS. 4 and 5, and various shapes can be applied. FIG. 6 shows an example thereof, (A) shows a single rib, (B) shows a cross-shaped rib, and (C) shows a double rib.
In the present invention, the distance H between the lower end of the sealing band and the tip of the inner cylinder when the tip is positioned upward, the size of the dispensing opening, or the thickness of the rib provided in the dispensing opening. By appropriately changing the area covering the dispensing opening by changing the sheath shape, a sufficient dispensing flow rate can be secured.
Furthermore, in the present invention, since the dispensing opening is divided by the ribs, even when eating a liquid with a tip attached to the mouth while eating something, it is difficult for some of the food in the mouth to flow back into the container. The effect of becoming can also be obtained. In particular, in the case where the dispensing opening is finely divided, the dispensing flow rate is somewhat reduced, but the effect can be expressed effectively.
[0018]
In the push-pull opening / closing lid of the present invention, the cap body, chip, inner plug, and outer lid can be formed of various plastics. Specific examples include olefin resins such as polyethylene, propylene-ethylene copolymer, propylene-butene 1 copolymer; acrylonitrile-styrene-butadiene (ABS) resin; impact-resistant styrene resin; acrylic resin; nylon resin, and the like. Particularly preferable examples include high-density polyethylene and polypropylene. Each member can be formed by injection molding, compression molding, or the like using these plastics.
As described above, in the push-pull opening / closing lid of the present invention, it is preferable to use the inner plug and the outer lid together with the lid made of the cap body and the chip. In use, the customer first removes the cap body from the container mouth, removes the inner stopper, attaches the cap body to the container mouth again, removes the outer lid, and then slides the tip upward to It becomes possible to drink the liquid.
[0019]
【The invention's effect】
According to the present invention, by providing a rib that horizontally traverses the dispensing opening of the chip, and forming a sealing band with the inner cylinder extending downward from the inner end of the top, the chip is placed in the mouth. Even when the tip is moved up and down with the contents liquid ingested, the tongue does not enter between the tip dispensing opening and the tip of the inner cylinder, and the tongue is completely sandwiched between them. It was possible to provide a push-pull opening / closing lid that can prevent, prevent a part of food in the mouth from flowing backward and secure a sufficient flow rate.
[Brief description of the drawings]
FIG. 1 is a side view (partial sectional view) showing an example of a conventional push-pull open / close lid.
FIG. 2 is a side view (partially sectional view) showing an example of a push-pull opening / closing lid of the present invention.
3 is a side view (partial cross-sectional view) showing a state in which the outer lid is removed and the chip is slid upward in the cap shown in FIG. 2. FIG.
FIG. 4 is a view showing a chip used for a push-pull opening / closing lid of the present invention.
FIG. 5 is an enlarged perspective view showing a part of the push-pull opening / closing lid of the present invention.
FIG. 6 is a top view showing an example of the shape of another rib of the chip of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cap main body 2 Outer cylinder part 3 Inner cylinder part 4 Annular wall 20 Tip 21 Top part 22 Outgoing opening 23 Inner ring 24 Outer ring 27 Rib 30 Sealing band

Claims (3)

A skirt portion fastened to the container mouth portion, an annular wall for fastening an outer lid having a smaller diameter than the skirt portion, a top plate portion on the upper portion of the annular wall, an outer cylinder portion provided above the top plate portion, and an outer cylinder A bridge that connects the outer cylinder part and the inner cylinder part, an inner cylinder part provided coaxially with the inner part and smaller in diameter than the inner diameter of the outer cylinder part, an opening provided between the outer cylinder part and the inner cylinder part And a cap portion that can slide up and down along the outer tube portion, a top portion connected to the upper portion of the tube portion, and a top center that is liquid-tightly closed at the upper portion of the inner tube portion in the lowered position In the push-pull opening / closing lid provided with a tip composed of a dispensing opening of
A rib extending in the horizontal direction across the opening is formed in the dispensing opening of the chip, and a sealing band is formed at the inner end of the top with an inner cylinder extending downward. Push-pull opening / closing lid characterized by being made. The push-pull opening / closing lid according to claim 1, wherein the rib is provided from the top surface of the top portion downward through a step. The push-pull opening / closing lid according to claim 1 or 2, wherein the rib is a single rib, a double rib, a Y-shaped rib or a cross-shaped rib.

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