JP2020075728A - Lid body with tap - Google Patents

Abstract

To provide a lid body with a tap forming a big tap by simple operation and allowing easy spouting and drinking of a liquid only or even a solid-liquid mixture including ice without using a straw.SOLUTION: A lid body 1 with a tap related to the present invention is set to cover an opening at the upper part of a bottomed cylindrical cup 2, has a circular appearance in plan view, and is composed of a top surface 1a and a side surface 1b extended downward from a circumference thereof and externally inserted into the cup 2. A first protrusion 3 and a second protrusion 4 are formed on the top surface 1a. A first central protrusion 3a of the first protrusion 3 is dented by being pressed to open the lid body 1 with the tap and serves as a stopper preventing flowing-out of a solid matter like ice from the opening, and a first circumferential side protrusion 3b serves as a tap allowing easy drinking of beverage. The second protrusion 4 is dented by being pressed at a second central side protrusion 4a to open, and serves as an air port to allow easy spouting and drinking of the beverage.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a lid with a mouthpiece that can consume a liquid beverage without using a straw and without hindering the pouring of the liquid such as ice.

  Plastic materials, which are lightweight and easy to mold into various shapes, are utilized in various fields such as daily necessities and industrial equipment, and have become indispensable materials in our daily lives. The production volume of such plastic materials is increasing year by year even worldwide, and it is considered that the production will continue to increase in the future. On the other hand, the amount of plastic waste has increased at the same time, and the amount of plastic waste is now overwhelming.

  With respect to such plastic waste, recently, it has begun to be reused as a product or used as a fuel by various recycling methods such as material recycling, chemical recycling, and thermal recycling. However, the amount of plastic waste is enormous, and only a small part of the total plastic waste is recycled, and most of them are still landfilled or dumped in the ocean.

  Most of plastic wastes are general-purpose plastics such as polypropylene, polyethylene terephthalate, polystyrene, etc. Although they are brittle by water, ultraviolet rays, etc., they are not decomposed. Therefore, the plastic waste scattered in the ocean or the like is finely divided as it floats in the sea or on the surface of the sea as it is or is broken by the impact of waves or the like. Such plastic wastes (microplastics) floating in the ocean are currently causing various problems.

  For example, various marine organisms such as whales, sea turtles, and birds that ate by mistake for floating plastic waste as bait were weakened by causing physical obstruction of feeding, and plastic-derived toxicity. Cases in which a fish with a chemical substance accumulated in the body was discovered are beginning to be reported. In this way, pollution of plastic waste is spreading throughout the entire marine ecosystem, and for us humans who eat fish and the like, how to protect the marine ecosystem has become a major issue.

  Against this background, in recent years, a movement to reduce the amount of plastic materials used has begun to occur worldwide. For example, we prohibit the use of plastic straws, spoons, etc., which are produced in large quantities but are generated in large quantities as wastes because they are disposable, and use biodegradable plastic materials as a base material with a small environmental impact. The alternatives to do so are beginning to be used.

In view of such a background, the applicant of the present application has earnestly studied a plastic cup with a lid that can eat the contents without using plastic parts such as a plastic straw.
As an example of such a plastic cup with a lid, Patent Document 1 has already disclosed the invention of a cup with a lid under the name of "cup container with lid and package for food and drink".
The cup with a lid described in Patent Document 1 includes a sealing sheet for sealing the inside of an opening of the cup, and a capped cylindrical lid installed so as to cover the sealing sheet. In addition, the top plate of the lid body has a projecting piece that breaks the sealing sheet, and a movable piece that is connected to the lid body is formed.

  With such a configuration, when the movable piece formed on the lid is pressed from above, the movable piece sinks downward, an opening serving as a drinking port is formed in the lid, and the movable piece is further pressed. The protrusion also has a function of making a hole in the sealing sheet. Further, by pushing the movable piece downward, the remaining piece of the sealing sheet formed on the peripheral edge of the opening of the cup is also pushed down to the inner wall of the cup.

  With the above operation, in the cup with a lid described in Patent Document 1, the drinking piece can be easily formed by pressing the movable piece of the lid, and the sealed cup can be opened. Can eat. Furthermore, since the movable piece pushes the remaining piece of the sealing sheet that projects into the opening of the cup to the inner wall of the cup, the residual piece of the sealing sheet does not obstruct the flow path of the contents, and good pouring is possible. Have.

  Further, Patent Document 2 discloses an invention of a cup with a lid under the name of "cap with opening function and package". In the cup with lid here, as in Patent Document 1, a sealing sheet for sealing the cup is formed in the upper opening, and a capped cylindrical lid body is installed so as to cover the sealing sheet of the cup. Further, on the top plate of the lid body, a piercing tool for breaking the sealing sheet and a pulling tool for pressing the piercing tool are formed adjacent to each other.

  With such a configuration, if one end of the pulling tool formed on the cap that is the lid body is lifted, the piercing tool is pressed downward. Further, the lid body is opened by moving the piercing tool downward, and in addition, the piercing tool has an action of breaking the sealing sheet. Further, a locking projection is formed adjacent to the piercing tool, and the piercing tool passing through the projection and sinking downward has a function of being caught by the projection and not returning upward.

  With the above-described operation, in the case of the cup with a lid described in Patent Document 2, it is possible to easily form a drinking mouth by lifting one end of the lifting tool of the lid body and pushing down the piercing tool. Becomes At the same time, it is possible to open the sealing sheet by punching holes, so that the owner can easily eat the contents. Furthermore, since the piercing device is fixed by pushing it down, the piercing device does not return to the upper side again, and the drinking spout remains open, which enables good dispensing.

Japanese Patent No. 5835565 Japanese Patent No. 4815849

However, in the cup with a lid disclosed in Patent Document 1, although the pressed movable piece makes a hole in the sealing sheet and then presses the sealing sheet remaining piece to secure the flow path, the movable piece is always the inner wall of the cup. Since it comes into contact with each other, the movable piece itself obstructs the pouring out of the content in the first place, and there is also a problem that it hinders a good pouring out.
Further, the fixing of the movable piece is ensured by the locking piece overcoming the locking convex portion by the locking, and if the thin locking piece is deformed, the movable piece cannot be fixed, and the movable piece does not flow. However, there is a problem in that it causes problems such as vibration.

On the other hand, the cup with a lid described in Patent Document 2 also allows the contents to be eaten by punching holes in the sealing sheet while pressing the piercing tool to form a drinking mouth. Since the work of pulling up the pulling tool when pressing is necessary and then lowering it again, there is a problem that it takes time to eat. Further, since an outer lid for protecting the lid body having the piercing tool or the like is also required, there is a problem in that small plastic wastes that easily flow out to the ocean like straws are increased.
Further, above all, in the inventions disclosed in Patent Documents 1 and 2, since the structure of the lid is complicated, the opening method itself is difficult to understand and the usability is poor if no description is given regarding the usage method. There was a problem that there is a high possibility that both men and women will not be able to easily take a drink easily. Further, there is a problem that it is easy to imagine that the manufacturing of the lid is complicated and the cost is high.

  The present invention has been made in view of the above problems, and its object is to use a lidded cup for a beverage that does not need to maintain a freshness for a long period of time without using a sealing sheet, and drink a large amount by a simple operation. Provides a lid with a mouthpiece that can form a mouth and can be maintained reliably and easily after being formed, and that drinks containing ice, etc. can be poured and ingested well without using plastic parts such as plastic straws. To do.

  A lid with a mouthpiece, which is a first invention for achieving the above object, is a lid with a mouthpiece that covers an opening of a bottomed tubular cup, and includes a top surface and an extension from the top surface. And a side surface that covers the peripheral edge of the opening of the cup, and the top surface has a first convex portion protruding upward, and the surface of the first convex portion has a center side and a peripheral side of the top surface. A first slit, which is continuous or discontinuous and which crosses in the direction of dividing into, is provided, and the first central convex portion divided into the central side of the top surface by the first slit is the peripheral side of the top surface. It is characterized in that it is movable so as to form a concave portion downward from the top surface, leaving the first peripheral side convex portion divided into two.

  Here, the continuous slit means that all the slits are formed from one end of the convex portion to the other end, and the discontinuous slit is from one end of the convex portion to the other end. It means that a part of them is formed so that the slit is interrupted. The state of the "partial" portion where the slit is interrupted is not particularly limited, but it goes without saying that it is required to be in a state in which it can be easily cut by pressing, together with the slit.

With such a configuration, when the first slit is continuous, the first convex portion on the central side of the top surface is pressed by the first convex portion to be depressed downward to form the top surface. Has an action of forming an opening having the first slit as an end. Further, even when the first slit is discontinuous, the “part” between the slits can be easily made by pressing the first center-side convex portion located on the center side of the top surface in the first convex portion. It has a function of denting downward while being cut and forming an opening having a slit as an end on the top surface.
Further, even if a force is applied to the first central convex portion with a finger, the surface forming the convex portion acts to support the force on the top surface. On the other hand, the first center-side convex portion is deformed and bent when a force such as pushing with a finger is applied, and is turned upside down to be a concave portion that is symmetrical with respect to the first center-side convex portion and the top surface. Acts to form. When such a concave portion is formed, this time it acts so as to be supported by the top surface against the deformation of the concave portion, so it was necessary to form the concave portion again to deform it like the original convex portion. A force equivalent to the force is required, and the concave portion once formed does not easily turn over and the shape is maintained.

Next, in a second invention, in the lid with a mouthpiece according to the first invention, an end portion which constitutes the first slit of the first peripheral side convex portion is curved to the inner side of the cup. It is characterized by having a collar portion.
With such a configuration, there is an effect that the end surface forming the first slit in the first peripheral side convex portion is not exposed to the outer surface side of the lid body.

A third invention is characterized in that the lid with a mouthpiece according to the first invention is provided with a first thin-walled portion that can be cut instead of the first slit.
Here, the "thin wall" of the first thin wall portion means that the first thin wall portion has a smaller thickness than the other portions of the first protruding portion, and the first thin wall portion can be broken by the pressure of a finger. It has a uniform thickness.

With such a configuration, the first thin portion has an action of exhibiting a structure in which at least the center side and the peripheral side of the top surface of the first convex surface are continuous. Further, since the first thin-walled portion has a small thickness and a small cross-sectional area, a load is applied to the first thin-walled portion, so that the first thin-walled portion is more easily broken than other portions that are not thin.
Since the first thin wall portion that can be cut is provided instead of the first slit in the first invention, the continuous thin wall portion and the discontinuous thin wall portion also exist in this first thin wall portion. The definitions of “continuous” and “discontinuous” are the same as in the case of slits. In the third invention as well, the "part" is not particularly limited, but it goes without saying that it is necessary to be in a state in which it can be easily cut by pressing, together with the thin portion.
Further, as in the first aspect of the present invention, pressing the first center-side convex portion reverses the front and back to form a concave portion that is symmetrical with the first center-side convex portion and the top surface as a reference. In order to deform it like the original convex portion after forming it, a force equivalent to the force required when forming the concave portion again is required, and it has an effect of easily maintaining the concave portion.

  Further, in the fourth invention, in the lid with a mouthpiece according to the third invention, an end portion of the first thin-walled portion of the first peripheral side convex portion is curved to the inner side of the cup. It is characterized by having a collar portion. With such a configuration, when the first thin-walled portion is broken by pressing, the fracture surface of the first peripheral edge side convex portion is not exposed to the outer surface side of the lid body.

  In addition, in a fifth aspect of the invention, the lid with a mouthpiece according to the first to fourth aspects is characterized in that the top surface is provided with an air hole for introducing air into the cup. With such a configuration, there is an effect that air easily enters and leaves the cup with a lid.

  Finally, in the sixth invention, in the lid with a mouthpiece according to the fifth invention, the air hole is the second convex portion projecting upward from the top surface, and the surface of the second convex portion. Is provided with a continuous or discontinuous second slit or a severable second thin portion that crosses the center side and the peripheral side of the top surface. The second center-side convex portion divided into the center side of the top surface by the thin-walled portion 2 has a concave portion downward from the top surface, leaving the second peripheral-side convex portion divided into the peripheral side of the top surface. It is characterized in that it is movable to form.

Here, the “thin wall” of the second thin wall portion means that the second thin wall portion has a smaller thickness than other portions of the second protruding portion, as in the first thin wall portion described above. The thin portion has a thickness that can be broken by pressing with a finger.
With such a structure, the second convex portion has a function of forming a recess (a recess while breaking in the case of a thin portion) by pressing the second center-side convex portion to form an opening. .. Furthermore, this opening has the effect of making it easier for air to flow in and out of the cup with lid.
Further, like the first and third inventions, the second center-side convex portion is pushed to reverse the front and back to form a concave portion symmetrical to the previous second center-side convex portion with respect to the top surface. In order to deform like the original convex portion after forming the concave portion, a force equivalent to the force required when the concave portion is formed again is required, which has an effect of easily maintaining the concave portion. Also in the sixth invention, the definition of "continuous", "discontinuous", or "part" and the action thereof are the same as in the first invention and the like.

According to the lid with a mouthpiece that is the first invention, in the first convex portion formed on the top surface, the first central convex portion divided by the continuous or discontinuous first slit Of the first peripheral edge-side convex portions, the first central-side convex portion is pressed by a finger to turn the inside out to form a concave portion. As a result, an opening serving as a drinking mouth can be formed in the lid, and the concave portion becomes a convex portion only with the force that acts before the front and back are inverted, so it is deformed by the degree of the action of the force such as the outflow of the beverage. In addition, there is an effect that it is easy to maintain the shape of the recess. In addition, when the content contains ice, this concave first convex portion on the center side stops the ice that is about to flow out from the opening, so only the liquid can flow out from the opening, which is good for the user. It has the effect that Moreover, the formation of the opening and the formation of the ice dam can be performed at the same time with one touch, which is convenient and easy to use.
Further, the first peripheral side convex portion is in a state of being opened upward when eating the contents, and its end portion is convex toward the user, so that it contacts the lower lip of the user. It is easy and makes it easier to consume the beverage. Further, even if the cup with a lid is tilted to some extent, the contents are blocked by the first convex portion on the peripheral edge side and are unlikely to overflow, and the shape of the end portion also facilitates liquid drainage.

  Next, according to the lid body with a drinking mouth of the second invention, since the end face of the sharp first slit of the first peripheral-side convex portion serving as a drinking mouth is not exposed, the contents are eaten. It has the effect of preventing the lips from being cut. Further, there is an effect that even if a finger or the like touches this end face by mistake when carrying it, no injury is caused.

And according to the lid with a mouthpiece which is the 3rd invention, since it is not formed penetrating the lid like the first slit, the surface of the first convex portion is formed through the first thin portion. At least the center side and the peripheral side of the top surface are connected, and unlike the case of the slit, it is easy to judge whether the lid with a mouthpiece is used or not, which is excellent in hygiene. Further, since it is a thin portion, it is easily broken and can be opened simply by pressing with a finger, so that it has an effect that the contents can be easily eaten as in the case of the slit.
Further, in the case of the lid provided with the first slit, the sharp end face of the first slit may be exposed if the lid is deformed by the load. If you take out the lid in such a state, you may accidentally cut your fingers, but if the lid has the first thin portion instead of the first slit, you may be injured. Can also be reduced. In addition, the effect other than the effect caused by the thin portion is the same as that of the first invention.

  Further, according to the lid with a mouthpiece of the fourth invention, when the first thin portion is broken, a very thin and sharp material fragment (burr) easily remains on the fracture surface, Even in such a case, since the fracture surface is not arranged on the outer surface side of the lid in the first peripheral side convex portion that the lips touch, the effect of being less likely to be injured when eating the contents Have.

  In addition, according to the lid with a mouthpiece of the fifth aspect of the present invention, by providing the air hole, when pouring out the content from the mouthpiece formed by opening the first convex portion, the air Air easily flows in through the holes. Therefore, even if the contents are poured out by inclining the cup to the extent that the drinking spout is closed, the pouring is not so bad that it becomes difficult to eat. It should be noted that when air holes are provided in the lid body in which the first thin portion is provided on the surface of the first convex portion, the airtightness of the content may be reduced, but in the case of a hot beverage, The pressure due to the expansion of the air layer formed between the beverage and the lid can be released.

Finally, according to the lid with a mouthpiece of the sixth aspect of the present invention, if the second central convex portion is pressed by the second convex portion to form the opening, it becomes an air hole. When pouring out the contents from the drinking mouth formed by opening the convex portion, air flows into the inside through the air hole formed by the second convex portion, and even if the cup is tilted to close the drinking mouth, Pouring out of the contents does not deteriorate.
Furthermore, when the first thin portion and the second thin portion are formed on the surfaces of the first convex portion and the second convex portion, instead of the first slit and the second slit, respectively. Since the contents are in a sealed state before any of the parts are broken, there is an effect that the quality of the contents can be maintained as compared with the case where these slits are formed. In addition, since the container is hermetically sealed, the contents will not leak even if the container shakes during transportation.

(A) is an example of the lid with a mouthpiece according to the first embodiment of the present invention, and is an external perspective view when the lid is installed in the cup, and (b) of FIG. It is a top view. (A) is an external appearance perspective view of an example of the lid with a mouthpiece according to the first embodiment of the present invention, and (b) is a part of one of the two convex portions of (a). Is a state in which the top surface of the lid is opened by pressing. It is an appearance perspective view of an example of a lid with a drinking mouth concerning a 2nd embodiment of the present invention. (A) is a side sectional view of an embodiment of a lid with a mouthpiece according to the third embodiment of the present invention, and (b) presses a part of each of the two convex portions of (a). , Shows a state in which the top surface of the lid is opened. It is a sectional side view which shows the state which pours out the content from the cup with which the lid with a drinking mouth which concerns on the 3rd implementation of this invention was attached. (A) is a side sectional view of an example of a lid with a mouthpiece according to the third embodiment, and (b) and (c) are enlarged views within a circle of (a). The figure (b) shows the first slit formed, and the figure (c) shows the first thin portion formed. (A) is an appearance perspective view of an example of a lid with a mouthpiece concerning a 4th embodiment of the present invention, and (b) is a part of one of the two convex parts of the figure (a). It shows the state where is pressed.

  Hereinafter, the lid with a drinking spout of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 is an example of a lid with a mouthpiece according to a first embodiment of the present invention, and FIG. 1A shows an external perspective view of the lid with a mouthpiece installed in a cup. 1 (b) is a plan view of FIG. 1 (a).

  As shown in FIG. 1A, the lid 1 with a drinking spout according to the first embodiment of the present invention is installed so as to cover the opening at the top of the bottomed cylindrical cup 2. The lid 1 with a drinking mouth has a circular appearance in a plan view (see FIG. 1 (b)), and extends downward from the top surface 1a and the peripheral edge of the top surface 1a to the outer peripheral edge of the opening of the cup. It is composed of a side surface 1b to be fitted. Further, a first convex portion 3 and a second convex portion 4 protruding upward are formed on the peripheral edge of the top surface 1a. Although the details will be described later, since the first convex portion 3 serves as a drinking mouth, it is larger than the second convex portion 4 serving as an air hole. However, the size can be arbitrarily determined, and the second convex portion 4 may be larger than the first convex portion 3.

  Next, the shapes of the first convex portion 3 and the second convex portion 4 will be described in detail with reference to FIG. The shape of the first convex portion 3 and the second convex portion 4 formed on the top surface 1a of the lid 1 with a mouthpiece has a radius of the top surface 1a as the axis of symmetry in plan view. It has a line-symmetrical shape and is substantially fan-shaped. In addition, these first convex portion 3 and second convex portion 4 include a first central convex portion 3a, a second central convex portion 4a located on the central side of the top surface 1a, and a top surface. A first slit 3c and a second slit 4c are provided so as to be divided into a first peripheral side convex portion 3b and a second peripheral side convex portion 4b located on the peripheral side of 1a, respectively.

  The first slits 3c and the second slits 4c here are not formed so as to continuously penetrate, but may be discontinuous ones formed so that the slits are partially interrupted. The discontinuous slit is limited to one in which the entire slit is easily cut by pressing the surface of the convex portion. This is because, in the case where it is difficult to cut the entire slit even when pressed, the present invention that the first convex portion 3 and the second convex portion 4 can be easily opened to form a drinking mouth or the like simply by pressing with a finger This is because the characteristics of are lost. Therefore, in the case of a partially discontinuous slit, the width of the "part" should be reduced or the wall thickness should be reduced so that the interrupted "part" can be easily cut. It is necessary to make it easy.

  Next, FIG. 2 is an example of a lid with a drinking mouth according to the first embodiment of the present invention, FIG. 2 (a) is an external perspective view thereof, and FIG. 2 (b) is the same figure. Of the two convex portions of (a), only the first central convex portion 3a of the first convex portion 3 is pressed and depressed. In the case of the lid 1 with a drinking mouth configured in this way, as shown in FIG. 2 (a) to FIG. 2 (b), the first central convex portion 3a and the second central convex portion 3a are formed. 4a, and the first peripheral edge-side convex portion 3b and the second peripheral edge-side convex portion 4b have an effect that they can be depressed downward by arbitrary pressing. And in the 1st convex part 3 and the 2nd convex part 4, the 1st center side convex part 3a, the 2nd center side convex part 4a, or the 1st peripheral side convex part 3b, the 2nd peripheral side If any one of the protrusions 4b is recessed, it has a function of reversing the front and back to easily form a recess that is symmetrical with the previous protrusion and the top surface 1a, and the lid 1 with a drinking mouth opens. .

  In addition, these recesses that are once recessed are turned upside down again by pressing the top of the recess in a direction opposite to the previous pressing direction with a force equivalent to the force required to form the recess again. Can be returned to. If the pressing force is very weak, for example, if the contents touch the lid 1 with a drinking mouth, the concave portion is not deformed and bent, and the original state is not restored again. That is, unless the finger is pressed from the back surface side of the lid, the lid does not easily return to its original position and the shape of the recess is easily maintained. Note that the ease of pressing and the shape-retaining property when the front and back are inverted vary depending on the hardness of the material used, the wall thickness and the shape of the convex portion, and therefore the lid body must be designed while paying attention to these.

With the above-described operation, the lid 1 with a drinking mouth forms the drinking mouth 5 by pressing the first center-side convex portion 3a of the relatively large first convex portion 3, and the first unpressed portion. Since the peripheral edge side convex portion 3b is formed in a convex shape on the user side, it has an effect that the contents can be easily eaten by applying the lower lip.
Here, the reason why the first center side convex portion 3a is pressed when forming the drinking mouth 5 is that the cup is used when the contents are to be eaten, in addition to the size that allows the lips to be easily applied. This is because, when tilted, the end surface portion of the first peripheral edge-side convex portion 3b formed by the first slit 3c faces upward, and the first peripheral edge-side convex portion 3b becomes just like a dam for the contents. In other words, even if the container is tilted to some extent, it is considered that the presence of the first peripheral edge-side convex portion 3b serving as a dam makes it difficult for the contents to spill below the drinking mouth 5, thereby facilitating feeding. Moreover, by only pressing the first center-side convex portion 3a to make it concave, the effect of forming the drinking mouth by the first center-side convex portion 3a and the dam effect by the first peripheral-side convex portion 3b are achieved. It is possible to demonstrate at the same time.

  In addition, since the shape of the end surface of the first peripheral edge-side convex portion 3b is arcuate, when the container is tilted, the contents come out while being collected in the center of the end surface of the substantially arcuate shape. It also has the effect of making it easier for things to enter the mouth. From these effects, when the drinking mouth 5 is formed, the first central convex portion 3a is pressed to open the lid 1 with the drinking mouth.

  Furthermore, if the air holes 6 are formed by opening the second protrusions 4 at the same time that the first protrusions 3 are opened, the air can easily flow into the inside from the air holes 6. As a result, even if the cup is tilted to such an extent that the drinking mouth 5 is blocked by the contents, the effect that the amount of the liquid to be poured can be made slow and the food can be consumed. Note that the lid 1 with a mouthpiece may have a shape as shown in FIG. 3 for the purpose of obtaining the same effect as the air hole 6.

  FIG. 3 is an external perspective view of an example of a lid with a mouthpiece according to the second embodiment of the present invention. In addition, the same name is used for the configuration common to the lid 1 with a mouthpiece according to the first embodiment of the present invention. The lid 7 with a mouthpiece according to the second embodiment of the present invention has the first convex portion 3 formed on the top surface 1a similarly to the lid 1 with a mouthpiece. Instead of the convex portion 4, an air hole 8 formed so as to penetrate the lid body 2 with a drinking mouth is formed. With such a structure, air can easily flow into the cup as in the case of the lid body 1 with a drinking mouth, and thus there is an effect that the content can be poured out well.

Next, a lid with a mouthpiece according to a third embodiment of the present invention will be described with reference to FIGS. 4 to 6.
4A and 4B relate to an example of a lid with a mouthpiece according to a third embodiment of the present invention, FIG. 4A is a side sectional view thereof, and FIG. In a), a state is shown in which a part of the first convex portion and the second convex portion is pressed to be depressed downward to form a concave portion and opened. On the other hand, FIG. 5 is a side cross-sectional view showing a state in which a lid body with a mouthpiece according to a third embodiment of the present invention is attached to a cup and a content (a beverage containing ice) is poured out. Is. In addition, in FIG. 5, in order to clarify the arrangement of the contents, reference numerals are given only to the configurations necessary for the description.
Here, the lid 9 with a mouthpiece according to the third embodiment of the present invention also has a configuration common to the lids 1 and 7 with a mouthpiece described above, and such a configuration has the same name. Will be used, and the description of the actions and effects produced by the same configuration will be omitted. The action and effect of the first center-side convex portion 3a, which will be described later, also has the above-described lids 1 and 7 with a drinking mouth.

  As shown in FIG. 4 (a), the first convex portion 3 formed on the top surface 1a of the lid body 9 with a drinking mouth is provided with a first flange portion 3d warped inward of the cup. Although not shown, the tip of the first flange 3d is formed along the first slit 3c, and the second protrusion 4 is formed with the second slit 4c. Then, as in the case of the lid 1 with a drinking mouth described above, as shown in FIG. 4B, the first center-side convex portion 3a and the second center-side convex portion 4a are depressed by being pressed with a finger, respectively. The first convex portion 3 and the second convex portion 4 are arranged so as to cover the openings from inside. Here, the 1st convex part 3 which the 1st center side convex part 3a dented and became a concave part becomes the drinking mouth 5, and the 2nd convex part which the 2nd center side convex part 4a dented and became a concave part. 4 is an air hole 6.

Next, the operation and effect of the recessed first central convex portion 3a will be described. As shown in FIG. 5, when the cup 2 in which the lid 9 with a drinking mouth containing the beverage 10 and the ice 11 is installed is tilted, the beverage 10 and the ice 11 try to flow out from the drinking mouth 5. To do.
However, since the ice 11 having a lower density than the beverage 10 exists near the liquid surface of the beverage 10, when the amount of the beverage 10 is large, the ice 11 cannot approach the drinking mouth 5, and only the beverage 10 has priority. Spill to. Then, although the ice 11 gathers in the vicinity of the drinking mouth 5 as the beverage 10 decreases, the outflow is suppressed by the first center-side convex portion 3a that covers the drinking mouth 5. That is, in the first center-side convex portion 3a that is depressed by being depressed, a part of the lid is always in contact with the inner wall of the cup as in the configurations described in Patent Documents 1 and 2 described above, and the channel of the beverage 10 is formed. It has a function of more effectively suppressing the outflow of floating objects such as ice 11, rather than narrowing it.

Therefore, the first central convex portion 3a serves as a stopper for the ice 11 and has the effect of allowing only the beverage 10 to flow out from the drinking spout 5. That is, it is possible to satisfactorily dispense regardless of the remaining amount of the beverage.
In addition, even if the recessed portion of the pressed first center-side convex portion 3a is pressed by a force such that the beverage 10 and the ice 11 come into contact with each other, the recessed portion vibrates or deforms, and thus the original first center portion 3a. It does not return to the shape of the side convex portion 3a. Since the concave portion formed by the first central convex portion 3a is supported by the top surface 1a due to the curved structure, it is difficult to bend with a minute force from the cup side, and the concave portion is formed by the first central convex portion 3a. This is because the face will not be turned upside down unless the required force is applied. Therefore, since the shape of the flow path is unlikely to change, there is also an effect that the amount of pouring out becomes stable when eating.

  Here, depending on the size of the ice 11 used, the effect of the first center-side convex portion 3a as a stopper for suppressing the ice may be reduced. For example, in FIG. 5, when the size of the ice 11 is smaller than the hole of the drinking mouth 5, it is considered that the ice 11 starts to flow out relatively early. Therefore, in order to maximize the effect of the lid 9 with a mouthpiece, the shape of the first convex portion 3 and the shape of the first slit 3c are determined in consideration of the size of the ice 11 used in the design stage. It is desirable to keep it. This makes it possible to make an optimal lid 9 with a mouthpiece that can be easily opened and is easy to eat the beverage 10.

Next, the first flange portion warped inward of the cup formed on the first convex portion 3 will be described. FIG. 6 (a) is a side sectional view of an example of a lid with a mouthpiece according to the third embodiment, and FIGS. 6 (b) and 6 (c) are both inside the circle of FIG. 6 (a). FIG. 6B is an enlarged view in which the first slit 3c is formed, and FIG. 6C shows the first thin portion 3e which does not penetrate like the first slit 3c.
Note that, as described above, the first slit 3c here may be continuous, or a part thereof may not be penetrated, and thus the slit may be discontinuous. Further, also in the first thin portion 3e here, as long as it is easy to cut by pressing, it may be continuous or the thin portion may be discontinuous, and the thin portion and the slit. May be a combination of. The second slit 4c may be replaced with a continuous thin portion or a discontinuous thin portion.

  In the first convex portion 3 shown in FIG. 6 (a), the first slit 3c is formed at the tip of the first flange portion 3d which is just warped inside the cup as shown in FIG. 6 (b). .. Therefore, even if the first center-side convex portion 3a is pressed to be depressed to form the drinking mouth 5, the end surface of the slit of the first peripheral-side convex portion 3b is not exposed to the outer surface side of the lid. Have. The first peripheral edge side convex portion 3b is also a portion where the lips come into contact when the contents in the cup are eaten, and the lips are cut off at the time of eating because the end face of the first slit 3c is not exposed. Has the effect of preventing Further, there is an effect that a finger or the like does not accidentally touch the first peripheral edge-side convex portion 3b when carrying the robot, thereby causing injury. Further, in the future, the edge of the first peripheral edge convex portion 3b may become a very sharp blade by thinning it for weight reduction in the future, but even in such a case, the edge surface of the first slit 3c Is safe because it is not exposed.

Further, instead of the first slit 3c, a first thin portion 3e shown in FIG. 6 (c) may be formed. The first thin portion 3e is also formed at the tip of the second flange portion 3f which is just curved inside the cup, and in this case also, the first slit 3c shown in FIG. 6B is formed. Has the same action and effect as the case.
The first thin-walled portion 3e (limited to the one that does not include slits over the entire area) has a unique action / effect in that it has a structure in which the central side and the peripheral side of the top surface of the convex portion surface are continuous. Since the thin-walled portion 3e has a small thickness and a small cross-sectional area, a load is applied to the thin-walled portion 3e, so that the thin-walled portion 3e is more easily broken than other portions that are not thin.
Due to such an action, if the first thin portion 3e is formed (further, if the second slit 4c of the second convex portion 4 is the second thin portion), the lid 9 with a drinking mouth is formed. It has an excellent effect on hygiene that it is easy to judge whether or not it is used. Further, since it is thin, it is easily broken, and like the first slit 3c, it can be easily opened by pressing and the contents can be eaten.
In addition, in the case of the lid body 9 with a mouthpiece provided with the first slit 3c and the second slit 4c, when the lid body 9 with a mouthpiece is deformed by a load, the sharp first slit 3c, The end surface of the second slit 4c may be exposed. When the lid 9 with a mouthpiece in such a state is taken out to be attached to the cup 2, the fingers may be cut during the work, but if the lid 9 with a mouthpiece having a thin portion is used, Since it is not exposed even if it is deformed, the possibility of injury is reduced.

Finally, the first convex portion 3 formed on the lids 1, 7 and 9 with the mouthpiece 3 and the second convex portion 4 formed on the lid bodies 1 and 9 with the mouthpiece are all in plan view. Although it has a fan-like shape, the shape is not particularly limited, and any shape can be used as long as it can be pressed and recessed downward to maintain the state. For example, another example is shown in FIG.
7A and 7B relate to an example of a lid with a mouthpiece according to a fourth embodiment of the present invention, FIG. 7A is an external perspective view thereof, and FIG. 7B is FIG. The state which pressed a part of 1st convex part of (a) is shown. The lid 12 with a mouthpiece according to the fourth embodiment of the present invention also has a configuration common to the lids 1, 7 and 9 with a mouthpiece described above, and such a configuration is the same. Detailed description will be omitted for the already-explained operations and effects caused by using the names and the same configurations.

In the lid 12 with a drinking mouth according to the fourth embodiment of the present invention shown in FIG. 7A, although not shown here, the first convex portion 3 and the second convex portion formed on the top surface 1a. Each of the portions 4 has a shape of a substantially quadrangular pyramid that is substantially diamond-shaped in a plan view, and the first slit 3c and the second slit 4c, which are continuous or discontinuous, make the first central side convex portion 3a and the second central side. The convex portion 4a, the first peripheral side convex portion 3b, and the second peripheral side convex portion 4b are formed.
With such a configuration, as shown in FIG. 7B, the first center-side convex portion 3a and the second center-side convex portion 4a are depressed by pressing as in the case of the lid 1 with a drinking mouth. (Here, only the first central convex portion 3a is recessed), and the drinking mouth 5 and the air hole 6 can be easily formed. Then, as in the case of the lid 1 with a mouthpiece, air can easily flow into the cup, and the contents can be poured out well.
Although the first slit 3c and the second slit 4c are formed in the present embodiment, it goes without saying that instead of the first slit 3c and the second slit 4c, a continuous thin portion or a discontinuous portion is formed. A thin portion may be formed.

  INDUSTRIAL APPLICABILITY The invention described in claims 1 to 6 of the present invention can be used as a lid for a cup, which is used when a beverage that is a liquid-solid mixture or a solid-liquid mixture containing ice or the like is easily consumed. Is.

DESCRIPTION OF SYMBOLS 1 ... Lid with a drinking mouth 1a ... Top surface 1b ... Side surface 2 ... Cup 3 ... 1st convex part 3a ... 1st center side convex part 3b ... 1st peripheral side convex part 3c ... 1st slit 3d ... 1st collar part 3e ... 1st thin part 3f ... 2nd collar part 4 ... 2nd convex part 4a ... 2nd center side convex part 4b ... 2nd peripheral side convex part 4c ... 2nd slit 5 ... Aperture 6 ... Air hole 7 ... Lid with a spout 8 ... Air hole 9 ... Lid with a spout 10 ... Beverage 11 ... Ice 12 ... Lid with a spout

Claims (6)

A lid with a drinking mouth that covers the opening of a cylindrical cup with a bottom,
A top surface, and a side surface extending from the top surface and covering the peripheral edge of the opening of the cup,
The top surface has a first convex portion protruding upward, and the surface of the first convex portion traverses in a direction divided into a center side and a peripheral side of the top surface, and is continuous or discontinuous. A first slit is provided,
The first center-side convex portion divided into the center side of the top surface by the first slit is separated from the top surface leaving the first peripheral-side convex portion divided into the peripheral side of the top surface. A lid with a drinking spout characterized by being movable so as to form a recessed portion below.   The lid with a mouthpiece according to claim 1, wherein an end portion of the first peripheral edge-side convex portion that forms the first slit includes a first collar portion that is curved inward of the cup. ..   The lid with a mouthpiece according to claim 1, further comprising a first thin-walled portion that can be cut instead of the first slit.   4. The lid with a drinking spout according to claim 3, wherein an end portion of the first peripheral edge-side convex portion that constitutes the first thin-walled portion is provided with a second collar portion that is curved inside the cup. body.   The lid with a drinking spout according to any one of claims 1 to 4, wherein the top surface is provided with an air hole for introducing air into the cup. The air hole is a second convex portion projecting upward from the top surface, and the surface of the second convex portion traverses in a direction divided into a center side and a peripheral side of the top surface and is continuous. Alternatively, a discontinuous second slit or a severable second thin portion is provided,
The second center-side convex portion divided into the center side of the top surface by the second slit or the cuttable second thin portion is the second peripheral side divided into the peripheral side of the top surface. The lid with a drinking spout according to claim 5, wherein the lid is movable so as to form a recess downward from the top surface while leaving the protrusion.