JP5270472B2 - Liquid container spout - Google Patents

Description

  The present invention relates to a spout attached to a top surface of a cup-shaped liquid container and used as a content liquid outlet or drinking outlet, and is particularly capable of achieving a reliable attachment even if it is relatively small. is there.

  In recent years, in the production of beverages such as coffee and tea, since the flavor of the liquid content can be maintained well, the use of aseptic filling systems has increased, and as a filling container used for this, the main body is a paper or resin cup. A general structure is formed by sealing a film-like sealing material by heat welding to the mouth. At the time of drinking, the sealing material was peeled off from the heat-welded surface with the main body part and the contents were directly drunk, or the contents were drunk by inserting a straw into the sealing material.

  On the other hand, beverages such as coffee and tea are often served as hot beverages, and cup-type container products are increasingly sold in a heated state, but straws are suitable for drinking hot beverages. In addition, peeling off the sealing material is inconvenient and has a problem that the liquid content is likely to scatter. Therefore, an overcap with a drinking mouth is attached to the outside of the sealing material, and the sealing material is broken using the push-down piece of the overcap so that the drinking mouth and the internal space of the container are communicated. A container that can drink the liquid has also been proposed (see, for example, Patent Document 1).

JP 2004-359314 A

  However, the type of mouthpiece that breaks and attaches the conventional sealing material breaks the sealing material at a time, and therefore the force required until opening becomes relatively large.

Accordingly, an object of the present invention is to solve such problems of the prior art, and an object of the present invention is to provide a liquid container spout that can achieve reliable attachment with a relatively small force. There is.

In order to achieve the above object, the present invention provides at least two liquid discharge holes arranged on a straight line or a circular arc and the straight line or the circular arc in a liquid container spout attached by breaking the top surface of the liquid container. At least one air introduction hole that is spaced apart from the base, and a base portion that comes into contact with the top surface when attached to the liquid container; a peripheral wall erected on the upper surface of the base portion; and the liquid discharge A plurality of sharpened hollow legs that communicate with the holes and the air introduction holes and are spaced apart from each other from the lower surface of the base, and the drooping length of the legs that communicate with the liquid discharge holes Is a spout for a liquid container, characterized in that it is smaller than the hanging length of the leg portion communicating with the air introduction hole. By adopting such a configuration, the tips of the plurality of leg portions are inserted into the sealing material in stages, so that the breaking of the sealing material by a relatively small force is performed a plurality of times.

  Here, “aligned arrangement on a straight line or arc” means to arrange in a line on the same virtual straight line or virtual arc.

  In the liquid container spout configured as described above, it is preferable that the hanging lengths of the legs communicating with the at least two liquid discharge holes are different from each other. Thereby, the fracture | rupture of a sealing material is further disperse | distributed temporally.

  Moreover, it is preferable to make the drooping length of the leg part arrange | positioned at both ends on the said straight line or circular arc among the leg parts connected to a liquid discharge hole the largest. Thereby, the attitude | position at the time of pushing in of a spout is stabilized.

  According to this invention, since the hang length of the leg portion is optimized, the sealing material is ruptured multiple times, so that the force required for each rupture can be relatively small. As a result, it is possible to effectively reduce the maximum value of the force required to complete the pushing-in of the spout.

It is a top view of the spout for liquid containers according to one embodiment of this invention. It is a sectional side view of the liquid container outlet shown in FIG. FIG. 2 is a front view of the liquid container spout shown in FIG. 1. It is principal part sectional drawing which shows the attachment state to the container of the outlet for liquid containers shown in FIG. It is a perspective view which shows the attachment state to the container of the outlet for liquid containers shown in FIG. It is principal part sectional drawing which shows the attachment state to the container of the outlet for liquid containers according to other embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of a liquid container spout according to an embodiment of the present invention, and FIG. 2 is a side sectional view of the liquid container spout shown in FIG.

  The liquid container spout (hereinafter referred to as “spout”) 1 shown in FIG. 1 is separated from three liquid discharge holes 2a, 2b, 2c arranged on the same virtual arc IA, and the virtual arc IA. And a base portion 4 having an air introduction hole 3 disposed therein. In the present embodiment, the liquid discharge holes 2a to 2c are arranged on the virtual arc IA, but although not shown, they may be arranged on the same straight line. The respective opening areas of the liquid discharge holes 2a to 2c and the air introduction hole 3 can be appropriately set according to the viscosity of the content liquid and the required discharge flow rate, but while performing smooth discharge, From the viewpoint of preventing the backflow of the liquid from the air introduction hole 3, the total opening area of the liquid discharge holes 2 a to 2 c is preferably larger than that of the air introduction hole 3. In addition, the air introduction hole 3 is separated from the virtual arc IA because the container is tilted for drinking, so if it is arranged on the virtual arc IA, it is blocked by the content liquid simultaneously with other liquid discharge holes. This is because the role of air introduction cannot be fulfilled. From the viewpoint of reliably introducing air from the beginning of drinking, it is preferable that the air introduction hole is as far as possible from the liquid discharge hole in the radial direction of the container.

  As shown in FIG. 2, the peripheral wall 5 is formed on the upper surface of the base portion 4 formed so that the liquid discharge holes 2 a to 2 c are lower than the air introduction hole 3, and the liquid discharge holes 2 a to 2 c and the air introduction hole 3. And defines a space for temporarily storing the content liquid discharged from the liquid discharge holes 2a to 2c. The height of the peripheral wall 5 may be constant, but from the viewpoint of facilitating drinking, the peripheral wall on the side to which the user's mouth is attached (the left side in FIG. 2) is connected to other parts as shown in the figure. It is preferable to make it higher than the peripheral wall.

  Further, hollow circular leg portions 6 a, 6 b, 6 c, 6 d are suspended from the lower surface of the base portion 4. These legs 6a, 6b, 6c, 6d communicate with the liquid discharge holes 2a, 2b, 2c and the air introduction hole 3, respectively, and the lower ends thereof are sharpened to facilitate the insertion of the container into the sealing material. It is said that. This sharp shape can be obtained by forming the tip of the hollow circular tube at an angle of preferably 45 degrees or less with respect to the longitudinal axis. In addition, although illustration is abbreviate | omitted, from a viewpoint which makes insertion of the leg parts 6a-6d into a container easier, a diameter becomes small, so that the lower end of leg parts 6a-6d goes to a front end with such a sharp shape. It is good also as a taper (taper) shape. In this example, as shown in FIG. 3, the drooping length Ld of the leg 6d communicating with the air introduction hole 3 is the largest, and then the legs 6a, 6c communicating with the liquid discharge holes 2a, 2c at both ends are provided. The drooping lengths La and Lc are large, and the drooping length Lb of the leg 6b communicating with the central liquid discharge hole 2b is minimized.

  When the spout 1 thus formed is attached to the container, the spout 1 is placed in such a posture that the liquid discharge holes 2a to 2c are on the outer peripheral side of the container and the air introduction hole 3 is on the center of the container. Turn. When pushing of the spout 1 into the container is started in this posture, first, the longest leg 6d is thermally welded to the mouth of the cup-shaped main body 11 of the container 10 to form the top surface of the container. 12 is broken and inserted. As described above, since the air introduction hole 3 may have a relatively small opening area, the diameter of the leg portion 6d can also be made relatively small, and therefore the sealing material 12 can be broken by the leg portion 6d even with a small force. Can do. Since the leg portion 6d is inserted into the sealing material 12, the internal space of the container 10 communicates with the outside through the leg portion 6d and the air introduction hole 3, so that the pressure difference between the inside and outside is eliminated. Moreover, since the position and attitude | position of the spout 1 are stabilized because the leg part 6d was penetrated by the sealing material 12, the push-out 1 can be pushed in with a comparatively small force continuously.

  Next, the leg portions 6a, 6c at the second longest ends are inserted into the sealing material 12, and the spout 1 penetrates the sealing material 12 at the three points of the leg portions 6a, 6c, 6d. The posture of the outlet 1 is almost fixed. When the pushing is further continued, the leg portion 6b is also inserted into the sealing material 12, and the base 4 comes into contact with the sealing material 12, whereby the attachment of the spout 1 to the container 10 is completed. A sectional view of this attached state is shown in FIG. In this attached state, the base 4 is in contact with the sealing material 12 which is the top surface of the container 10, and the internal space and the outside of the container 10 communicate with each other via the legs 6a to 6c and the liquid discharge holes 2a to 2c. doing.

  FIG. 5 is a perspective view showing a state in which the spout 1 is attached to the container 10. In drinking, if the container 10 is tilted after grasping the container main body 11 and opening the spout 1, the air flows into the container from the air introduction hole 3 and at the same time the contents from the liquid discharge holes 2 a to 2 c. Liquid flows out smoothly. The liquid that has flowed out is once stored in the peripheral wall 5 and then used for drinking. When the user releases the mouth and returns the container 10 to the original posture, the liquid remaining in the peripheral wall 5 moves toward the liquid discharge holes 2a to 2c along the inclination of the upper surface of the base portion 4 and passes through these holes. Then, it returns to the inside of the container 10 again. In addition, the inclination of the upper surface of the base part 4 is not necessarily required, and the upper surface of the base part 4 may be parallel (horizontal) to the top surface of the container in the mounting posture.

  As described above, according to the spout according to the present invention, breakage of the sealing material 12 by the leg portions 6a to 6d occurs in a stepwise manner, but the force required for each breakage was simultaneously broken across the entire leg portion. As a result of being smaller than the conventional spout, the maximum value of the force required to complete the push-in of the spout is greatly reduced. Further, as the number of legs inserted into the sealing material 12 increases, the attachment posture of the spout is corrected and stabilized. As a result, reliable attachment can be achieved with a relatively small force.

Incidentally, the liquid discharge hole provided at least two, in order to secure the flow rate during discharge, it is necessary a large total opening area to some extent, than was one of the liquid discharge hole, the liquid body discharge hole This is because the diameter of the leg portion that is suspended in communication with the seal increases, and the force required to break and insert the seal material 12 also increases. In addition, even if the diameter of the legs that are suspended from the liquid discharge hole is reduced to reduce the individual force required for the breaking insertion of the sealing material, the suspension lengths of these legs must be the same. As a result of the simultaneous breakage, the force required to push the spout 1 may not be reduced as much as a whole. In such a case, it is preferable to have at least two types of drooping lengths as in the illustrated embodiment, and to cause breakage to be dispersed in time, and to vary the drooping lengths of all legs. This is most preferable from the viewpoint of reducing the force required for pushing.

  Further, in this embodiment, among the leg portions 6a to 6c communicating with the liquid discharge holes 2a to 2c, the hanging length of the leg portions 6a and 6c arranged at both ends on the virtual arc IA is maximized. Accordingly, the spout 1 is supported at the three points of the leg portion 6d communicating with the air introduction hole 3 and the leg portions 6a and 6c at an early stage of pushing, so that the posture during pushing is stabilized. However, the length of the leg portion communicating with the liquid discharge hole is not limited to this, and can be arbitrarily set.

  Furthermore, since the liquid discharge hole (liquid discharge hole 2b in the illustrated example) closest to the midpoint of the straight line or the circular arc in which the liquid discharge holes are arranged and arranged is involved in the discharge of the content liquid to the end, the content liquid into the container From the viewpoint of minimizing the remaining amount, it is preferable to make the leg portion (the leg portion 6b in the illustrated example) communicating with the liquid discharge hole as short as possible. When the liquid level of the content liquid falls below the opening of the leg, the content liquid is no longer discharged and the content liquid remains in the container. However, the shorter the leg, the less this residual amount. Because it can be done.

  FIG. 6 is a cross-sectional view of a main part showing a state where the spout 1 is attached to the container according to another embodiment of the present invention. In this embodiment, a lid portion 7 that is fitted to the upper portion of the peripheral wall 5 is provided. By providing the lid portion 7, it is possible to prevent foreign matters from entering the space defined by the base portion 4 and the peripheral wall 5 before use, thereby improving hygiene. Moreover, since the upper part of the cover part 7 is formed in the flat plate and a force can be applied here and a spout can be pushed in, attachment property improves further. Furthermore, since the lid 7 can be resealed during drinking, convenience is also improved.

  For distribution, for example, the spout may be packaged in a polyethylene bag and bonded to the side surface or top surface of the container using a hot melt adhesive or the like. In addition, when an overcap is attached to the top surface of the container for distribution, the spout can be placed between the top surface and the overcap as it is or in a packaged state with a bag. Further, it can be distributed independently from the liquid container product and distributed or sold to the purchaser of the liquid container product at the store.

  Note that the above description shows only a part of the embodiment of the present invention, and these configurations can be combined with each other or various modifications can be made without departing from the gist of the present invention. . For example, the attachment to a cup-shaped container has been described as an example. However, the application range of the spout of the present invention is not limited to this. For example, a brick-shaped paper container, a resin container called a so-called cubitner, a tin container It is possible to apply to various liquid containers such as. Moreover, although demonstrated as what is drunk directly from a spout, this spout can also be used for the transfer of the liquid to another container.

As is clear from the above description, the present invention has made it possible to provide a liquid container spout that can achieve reliable attachment with a relatively small force .

DESCRIPTION OF SYMBOLS 1 Outlet 2a, 2b, 2c Liquid discharge hole 3 Air introduction hole 4 Base part 5 Peripheral wall 6a, 6b, 6c, 6d Leg part 7 Lid part 10 Container 11 Main body part 12 Sealing material

Claims (3)

In the liquid container spout, which is attached by breaking the top surface of the liquid container,
At least two liquid discharge holes arranged on a straight line or an arc and at least one air introduction hole arranged apart from the straight line or the arc, and the top surface when attached to the liquid container A contacting base,
A peripheral wall erected on the upper surface of the base,
A plurality of sharpened hollow legs that communicate with the liquid discharge hole and the air introduction hole, respectively, and are vertically spaced from the lower surface of the base,
The liquid container spout according to claim 1, wherein a drooping length of the leg portion communicating with the liquid discharge hole is smaller than a drooping length of the leg portion communicating with the air introduction hole.   2. The liquid container spout according to claim 1, wherein drooping lengths of the leg portions communicating with the at least two liquid discharge holes are different from each other. The liquid discharge hole of the leg portion communicating with the largest hanging length of the leg portions disposed at both ends in a straight line or arc on, pouring port for the liquid container according to claim 2.

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