JP2005022757A - Opening member of cup-type container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening member of a cup-type container where a part of the lid body can be conveniently opened with an auxiliary tool which is attached to the lid body of a beverage content-packed cup-type container for use and the lid body can be stably opened in a fixed shape and size. <P>SOLUTION: The opening member of the cup-type container has the opening member 1a which can be attached to the top of the container, and a frame body 6 is of short cylinder with a height where a cutting edge member 7 can be housed and is mounted on the upper edge section of the container at its lower end, and a cutting edge member 7 is provided with a cutting edge which protrudes downward and is hinge-connected to the ceiling plate section 16, and the lid body 5 is cut and opened by allowing the cutting edge to be displaced around the rotation axis of the hinge. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an opening member that is used when a beverage is filled in a cup-shaped container or when a granular content is taken out and the container is opened to form a spout.

  2. Description of the Related Art Conventionally, it is well known that a stretchable straw used for sucking beverage contents is placed in a heat-shrinkable bag and attached to the side of a cup-type container together with the bag.

  Since the tip of the straw has an acute angle, the sharp tip penetrates a part of the film-like lid at the time of use, and is used as a drinking mouth (sucking mouth) as it is. It has excellent functions such as a penetrating function and a simple mounting function on the side of the cup.

  However, the cup-type container with a straw of the above-mentioned conventional example is mainly used as a container for storing a cold beverage or the like, and using this as a container for storing a hot beverage such as hot coffee is a hot beverage. There are cases where there is no habit of drinking with a straw, and the cup-type container with a straw is not suitable for hot beverages because of the heat resistance of the straw itself.

  On the other hand, in a general type of hot beverage stuffed cup type container that is not a cup type container with a straw as described above, a part of the film-like lid is peeled off from the flange on the upper surface of the cup, opened in a U shape, and this is used as a drinking mouth. Yes.

  However, the operation of peeling off the lid bonded to the flange is not always easy, and an accident may occur in which the contents overflow due to hand shaking during peeling. Further, the surface of the flange that has been peeled off from the lid is rough, and the rough feel when touched by the lips is not good. In addition, the contents easily adhere to the rough surface and remain unsanitary. Furthermore, in this case, the more the cover is peeled, the larger the opening becomes synergistically, so the area of the opening serving as a drinking mouth does not become constant. In the case of such a drinking mouth, if you try to drink the liquid contents while tilting the cup, a larger amount than the expected amount may flow out of the opening, and it may spill or overflow is there.

  Even when the content of the container is a granular material, it is desirable that the shape and size of the opening be constant in order to make the removal amount constant.

  The applicant of the present invention has previously proposed that the film-shaped lid is cut and opened by the opening member attached to the cup-shaped container. Although the cup opening container can be easily opened by the proposed opening aid (see Japanese Patent Application Laid-Open No. 2003-327266), the opening can be further facilitated and the lid can be opened stably. Improvement of members is desired.

JP 2003-327266 A

  The present invention has been made in view of the circumstances as described above, and is an opening member that is used by being attached to a lid of a beverage content-packed cup-type container, and a part of the lid can be easily opened. The structure is simple and easy to handle, the touch when the lips come into contact is good and hygienic, and when the opening is used as a mouthpiece, it forms a mouthpiece of a certain shape that is easy to drink, An object of the present invention is to provide a cup-shaped container opening member that can be used for both hot and cold beverages and that can stably perform the opening of the lid with a defined shape and size. .

  Corresponding to this purpose, the opening member of the cup type container of the present invention can cut and open the film-like lid attached to the cup type container and closing the opening of the cup type container to form the spout It is characterized by having a cutting edge.

  In the opening member of the present invention, the cutting blade 27 of the cutting blade member 7 is opened by cutting the lid 5 into a predetermined size and shape, so that the opening does not have an unexpected size, shape, Since the position where the contents flow out and the amount poured out are within the assumed range, there will be no accidents where the contents spill or overflow during the dispensing. Further, if this opening member is attached to the cup container in advance, the container lid at the upper end of the cup container is covered, so that the hygiene of the container lid is maintained, and consequently the hygiene of the contents is maintained.

  According to the present invention, a part of the lid of the cup-type container can be easily opened, and when the opening is used as a drinking mouth, An opening member that can be used for both hot and cold beverages can be obtained. In addition, even when the contents of the container are granular, the shape and size of the opening are constant, so that the amount taken out can be constant.

The details of the present invention will be described below with reference to the drawings showing an embodiment.
1 and 2, 1 a is an opening member, and the opening member 1 a is used by being attached to the cup-type container 2. A flange 3 is formed around the upper end of the cup-shaped container 2, and the inside thereof is opened to form an open opening 4. The open opening 4 is a film-like lid 5 (sealed with the flange 3 ( (See FIG. 8). The lid 5 is an object to be opened by the opening member 1a of the present invention.

  As shown in FIGS. 3 and 4, the opening member 1 a includes a frame body 6 that can be attached to the cup-type container 2 or the lid body 5, and a cutting blade member 7 that is supported by the frame body 6 so as to be displaceable. Yes.

  The material of the opening member 1a is made of plastic such as polypropylene, glass, paper, metal, or composite material. For example, if the material is made of plastic, injection molding or the like can be employed.

  The frame 6 includes a cover cylinder portion 8 that covers the upper end portion of the cup-type container 2 and an attachment cylinder portion 11 for attaching the cover cylinder portion 8 to the cup-type container 2 via the shoulder 12. The center line of the opening member 1 a Concentric and continuous in 10 directions.

  A projecting ring 13 or an undercut projecting in the shape of a continuous or discontinuous annular bank is formed around the center line around the inner peripheral surface of the mounting cylinder portion 11, and is relatively in the thickness direction. A recessed annular recess groove 14 is formed closer to the shoulder 12. The annular recessed groove 14 is a groove for fitting the flange 3 at the upper end of the cup-shaped container 2 when the opening member 1a is attached to the cup-shaped container 2, and the protruding ring 13 has the flange 3 from below. It is a structure to suppress. Thus, the frame body 6 is fitted and mounted over the entire outer periphery of the upper end of the cup-shaped container 2 on the entire inner periphery. Although not shown, in the case where the opening member 1 a is mounted on the lid 5, the opening member 1 a can be configured to be bonded or welded to the upper surface of the lid 5 sealed by the flange 3. . In this case, the protruding ring 13 and the recessed groove 14 for mounting on the cup-shaped container 2 may not be formed.

  The frame body 6 has a cylindrical body portion 15 of the cover cylinder portion 8 and a top plate portion 16 that closes the upper end of the cylindrical body portion 15, and is poured into a part of the top plate portion 16 near the drinking mouth side 17. The dispensing opening 21 is open, and the cutting blade member 7 is supported in the dispensing opening 21 so as to be displaceable.

  From the side edge of the dispensing opening 21, the standing wall 22 falls inward and in the center line direction.

  At least the cylindrical body portion 15 where the pouring opening 21 is located has a double wall structure including an outer tube 24 and an inner tube 25 forming a folded portion 23 having a smooth outer surface at the upper end. However, as shown in FIGS. 19, 20, 22, 23, and 29, the cylindrical body portion 15 where the dispensing opening 21 is positioned may have a single wall structure instead of a double wall structure. The height h in the center line direction of the space inside the cylindrical body portion 15 needs to be large enough to accommodate at least a part of the cutting blade member 7.

  The shape and size of the dispensing opening 21 is a shape and size that can accommodate the above-described cutting blade member 7, and in particular, the distal end portion on the drinking mouth side 17 of the dispensing opening 21 is opened. Since it becomes a part which guides the flow of the content liquid at the time of pouring out the content liquid from the cup-shaped container 2, it is close to the outer edge of the top plate part 16 so that the smooth inner cylinder 25 of the cylindrical body part 15 is exposed. Open

  The cutting blade member 7 has an operation handle portion 26, and a cutting blade 27 is formed downward from the front end and the left and right sides of the operation handle portion 26. Among the cutting blades 27, the tip cutting blade 28 at the tip is a portion that first protrudes from the lid body 5 to form an initial opening in the lid body 5 in the opening operation of the cup-shaped container 2, and is sharp or It is formed in a rounded shape of about R1 to R3, and its mounting angle θ is set so that it can protrude from the lid 5 as vertically as possible. The angle θ is determined in consideration of the designed operation difference of the cutting edge 27, and is usually 0 to 20 ° with respect to the center line. Alternatively, the angle θ formed by the normal line of the plane including the upper end of the cup-shaped container 2 and the tip cutting edge 28 in the state where the opening member 1a is mounted on the cup-shaped container 2 is 0 to 20 °. Further, the position of the tip cutting edge 28 when forming the initial opening of the lid 5 is set to be close to the edge of the open opening 4 of the cup-shaped container 2, that is, to be close to the lower end of the inner cylinder 25 of the cover cylinder 8. Is desirable.

  The cutting blade member 7 may be formed integrally with the frame body 6 or may be formed separately from the frame body 6. In the opening member 1a of this embodiment, the cutting blade member 7 is integrated with the frame body 6. The cutting blade member 7 is connected to the top plate portion 16 by a hinge 30 at the base end portion. The hinge 30 is configured by making the resin material constituting the top plate portion 16 thin and giving flexibility, and the cutting blade member 7 can be displaced up and down around the rotation axis of the hinge 30. By this swinging displacement, the cutting blade 27 can be displaced between a position where it is separated from the lid 5 and a position where the lid 5 is cut and opened. When the cutting blade member 7 is configured separately from the frame body 6, the displacement of the cutting blade member 7 is linear displacement or rotational displacement depending on the support structure of the cutting blade member 7 from the frame body 6.

  The cutting blade member 7 is connected to the standing wall 22 of the top plate portion 16 by a detachable connecting member 31 and is held in a posture. The connecting member 31 is formed in a thin line shape having such a strength that the cutting blade member 7 is cut when a downward force is applied by pushing down the fingers, and connects the side surface of the cutting blade member 7 and the standing wall 22 in a bridge shape. Thus, the posture of the cutting blade member 7 with respect to the top plate portion 16 is maintained, and the cutting blade member 7 is prevented from swinging and coming into contact with the lid body 5 in an emergency.

  An escape portion 32 is formed in the top plate portion 16 on the side opposite to the pouring opening 21. The escape portion 32 is formed by pouring the liquid from the cup-shaped container 2 after opening and tilting the cup-shaped container 2 by attaching the lower lip to the tip of the dispensing opening 21 so that the top plate portion 16 has the face. Since there is a possibility of hitting a nose or the like protruding at the center, the top plate portion 16 of the possibility of hitting is not cut or retracted by a distance d so as not to hit. Then, the escape part 32 which consists of the hollow which hollowed the top-plate part 16 in the ellipse shape is formed. Furthermore, the top plate portion 16 is formed with a straw hole 33 into which a straw can be inserted as needed, or a score for forming a straw hole.

  The upper surface of the operation handle portion 26 of the cutting blade member 7 is formed with a pressing surface 34 having a depression that can be pressed with fingers. When the pressing surface 34 is pushed down with a finger, the operation handle 26 rotates about the hinge 30 and is displaced downward toward the lid 5 of the cup-type container 2.

  As shown in FIG. 6, the pressing surface 34 may be a smooth surface without any processing or display, but may be formed with a groove 35 that forms irregularities for the purpose of preventing slippage. Further, as shown in FIGS. 7A and 7B, characters or the like may be formed on the pressing surface 34 for the purpose of notifying the user of the pressing surface by means such as formation of unevenness or printing. In addition, a lock mechanism 36 that locks the posture of the cutting edge 27 when the opening is completed is provided between the operation handle portion 26 and the top plate portion 16. The lock mechanism 36 has a lock projection 37 extending from the lower surface of the operation handle 26, and when the lock projection 37 is rotated by 90 ° correspondingly, the lock receiving portion 37 is engaged with the lock projection 37. 38 protrudes downward from the top plate portion 16. A lock receiver may be provided on the operation handle portion 26 and a lock protrusion may be provided on the top plate portion 16.

  In a state where the opening member 1a is mounted on the cup-type container 2, it is desirable that the space between the opening member 1a and the cup-type container 2 is sealed in a water-tight manner at least in the vicinity of the dispensing opening 21. The opening member 1a and the cup-shaped container 2 are mounted by fitting the flange 3 of the cup-shaped container 2 into the recessed groove 14 of the opening member 1a, but between the opening member 1a and the cup-shaped container 2. In order to achieve watertightness, a seal is formed such that the recessed groove 14 of the opening member 1a and the flange 3 of the cup-type container 2 are brought into close contact with each other or the opening member 1a and the cup-type container 2 are welded in a watertight manner by hot melt or the like. Ingenuity is necessary. In the opening member 1a of this embodiment, a seal fin or a seal ring is formed on the opening member 1a in order to realize this seal. That is, the seal fin 41 or the seal ring that protrudes in a bowl shape from the lower end of the cylindrical body portion 15 of the cover cylinder portion 8 or the lower surface of the shoulder 12 is formed around the center line around the inner peripheral surface of the frame body 6. The seal fin 41 is opened in watertight contact with the peripheral portion of the lid 5 stretched on the upper end of the cup type container 2 in a state where the frame 6 of the opening member 1a is mounted on the upper end of the cup type container 2. A seal between the member 1a and the cup-type container 2 is realized. Further, on the inner peripheral surface side of the seal fin 41, as shown in FIG. 5, it corresponds to the seal fin 41 for the purpose of protecting the seal fin 41 from contact between the opening members when the opening member is transported. A seal fin protection ring 41b is formed around the center line.

The opening operation of the container using the opening member 1a configured as described above is as follows.
First, the unsealing member 1a is placed on the cup-shaped container 2 filled with the content liquid and closed with the lid 5 and attached. At this time, the outer edge of the flange 3 at the upper end of the cup-type container 2 is fitted into the recessed groove 14 of the attachment cylinder portion 11 of the opening member 1 a so that the opening member 1 a is fixed to the cup-type container 2. At this time, the tip of the inner edge of the sealing fin 41 of the opening member 1a comes into contact with the upper surface of the lid body 5 of the cup-type container 2 and seals between the opening member 1a and the lid body 5 in a watertight manner. Further, another sealing structure such as welding is applied between the opening member 1a and the cup-type container 2 as necessary. In this state, the cup-shaped container 2 is placed in the storage or transportation process.

  Next, in the consumption process, when the consumer opens the cup-shaped container 2, when the pressing surface 34 on the upper surface of the operation handle portion 26 of the cutting blade member 7 is pushed down with a finger, the cutting blade member 7 is hinged 30. Rotate downwards around the center. Due to this rotational displacement, the connecting member 31 is cut and the cutting blade member 7 becomes free, further rotationally displaced, the cutting blade 27 attached to the cutting blade member 7 is displaced downward, and the leading edge cutting blade 28 is a lid. The body 5 is pierced to form an initial opening.

  The cutting blade 27 continues to descend, the tearing of the lid 5 proceeds, the opening area gradually increases, and the drinking mouth 42 (FIG. 4) is formed. When the cutting blade member 7 is rotated about 90 °, the opening operation of the cutting blade 27 is finished, and the locking projection 37 of the cutting blade member 7 is fitted into the locking receiver 38 protruding from the top plate portion 16 and locked. By doing so, the posture of the cutting edge 27 at the end of the opening is maintained.

  Thus, the liquid content in the cup-type container 2 can be poured out through the drinking mouth 42 formed in the lid 5.

  In this unsealing member 1a, the movable range of the cutting blade member 7 is substantially constant at about 90 °, so that the shape and size of the drinking mouth 42 formed in the lid 5 is also constant, and the state in which the contents are poured out is also constant. Become stable. The shape and size of the drinking mouth 42 are determined by the distribution of the cutting edge 27.

  FIG. 8 is a plan view of the lid, but as shown by a dotted line on the upper surface of the lid 5, for example, a score groove 43 that does not penetrate the film constituting the lid is formed and pierced and cut by the cutting blade 27. It may be easy to open.

  Next, in the process of storing and transporting the cup-shaped container 2, when the opening 21 for extraction of the opening member 1a and the cutting blade member 7 disposed therein are exposed to the outside, When the object comes into contact with the cutting blade member 7, the lid 5 is unsealed, or the cutting blade member 7 is damaged, and a normal opening operation cannot be performed at the time of opening, or dust or the like is removed from the dispensing opening 21. There is a possibility that the drinking mouth 42 becomes unsanitary at the time of entering and dispensing. In order to prevent this, it is effective to cover and close the dispensing opening 21 with a covering member in a state in which the cutting blade member 7 is included. As the covering member, a tack seal, an over shrink, an over cap, a protector, or the like can be used.

  When a tack seal is used, a peelable tack seal is attached to the top plate portion 16 of the frame body 6 so as to be peelable, and the pouring opening 21 is closed.

An embodiment using this tack seal is shown in FIGS.
In the embodiment shown in FIG. 9, a tack seal 61 a is attached to the upper surface of the top plate portion 16 of the frame body 6. The tack seal 61 a is attached to the top plate portion 16 by closing the pouring opening 21. The main body 62 and the tack seal 61a to be peeled from the top plate 16 are continuously provided with a pull tab 63 that is picked up with fingers. Tack seal 61a is smaller the width d ₂ of the pull tab 63 than the width d ₁ of the main body portion 62, although the main body portion 62 that is located less than planar contour 64 of the top plate portion 16, the pull tab 63 the top plate It is located outside the planar contour 64 of the part 16. The main body 62 has a covering portion 65 composed of a portion covering the dispensing opening 21 in the peeling direction and a peripheral portion thereof, and a base 66 removed from the covering portion 65 in the peeling direction. The base 66 is attached to the top plate 16 so that it can be peeled or cannot be peeled off.

  The pull tab 63 is bent at a boundary 67 with the main body 62 and temporarily fixed to the side surface 68 of the cylindrical body 15 of the frame 6.

  When the cup-shaped container 2 is opened using the opening member 1a having the cover structure configured as described above, the pull tab 63 of the tack seal 61a is first picked with fingers, and the cylindrical body portion 15 of the frame 6 is removed. Then, the pull tab 63 is pulled up to peel off the cover portion 65 of the main body portion 62 of the tack seal 61a, and the cutting blade member 7 in the dispensing opening 21 is exposed. Next, the cutting blade member 7 is pushed down with fingers to open the lid 5.

10 to 12 show another embodiment of a tack seal.
A tack seal 61 b shown in FIG. 10 has a main body 62 and a pull tab 63. A protective ring 71 having a predetermined height is formed on the outer edge portion of the top plate portion 16 of the opening member 1a so as to protrude upward in a bank shape, and the main body portion 62 of the tack seal 61b is formed of the protective ring 71. The pull tab 63 sticks to the outer side of the protective ring 71 by sticking to the top plate portion 16 on the inner side. Along with the provision of the protective ring 71, a sufficient area for adhering the main body 62 of the tack seal 61 b is provided between the distal end of the pouring opening 21 of the top plate 16 and the protective ring 71. In order to ensure the width of the protective ring 71, a narrow width portion 72 is formed, and the position of the narrow width portion 72 is also slightly shifted to the outside. Is provided. The pull tab 63 that continues to the main body portion 62 gets over the narrow width portion 72, goes out, is bent, and is temporarily fixed to the side surface 68 of the cylindrical body portion 15.

  When the height of the narrow width portion 72 is made lower than the other portions of the protective ring 71, the height is different between the main body portion 62 of the tack seal 61b and the pull tab 63 overcoming the height of the narrow width portion 72. It is possible to avoid the occurrence of a level difference.

  The tack seal 61c shown in FIG. 11 is an example in which the width of the main body 62 and the pull tab 63 is equal, and the tack seal 61d shown in FIG. 12 has a d1 / d2 ratio of the width of the main body 62 and the pull tab 63 shown in FIG. This is an example larger than the tack seal 61 of the example. In the examples shown in FIGS. 10 to 12, the tack seal is a transparent body, but the tack seal may be translucent or opaque.

  When using an overshrink, after attaching the opening member 1a to the cup-type container 2, the whole cup-type container 2 and the opening member 1a, or the upper end of the cup-type container 2 and the whole opening member 1a attached thereto Alternatively, a portion necessary for covering the dispensing opening 21 of the opening member 1a is shrink-wrapped with a shrink film.

  In the embodiment shown in FIG. 13, the cup-shaped container 2 and the entire opening member 1 a are shrink-wrapped with a shrink film 74 after the opening member 1 a is attached to the cup-shaped container 2.

  In the example shown in FIG. 14, after the opening member 1 a is attached to the cup-type container 2, only the opening member 1 a is shrink-wrapped with the shrink film 74.

  When the overcap is used, the overcap 75 is made of plastic such as PET (polyethylene terephthalate), paper, metal, or a composite thereof. As shown in FIG. 15, the overcap 75 includes a top plate 76 and mounting legs 77 that fall in a skirt shape from the peripheral edge thereof, and the mounting legs 77 are attached to the upper end of the frame 6 of the opening member 1 a. The top plate 76 covers and protects the pouring opening 21 of the frame body 6 and the cutting blade member 7 there. In the example shown in FIG. 16, the attachment leg 77 is extended from the cover tube portion 8 of the opening member 1a along the shoulder 12 and further along the attachment tube portion 11, and is detachably fitted so as to cover the entire opening member 1a. Attached.

  When a protector is used, a thin plate-shaped protector having a required rigidity is put in and out of the pouring opening 21 to open and close to protect the cutting blade member 7.

  Examples using this protector are shown in FIGS.

  The protector 51 used in the protector structure 50 shown in FIGS. 17 to 20 is a thin plate shape, and the size or shape is a shape and size that can cover the dispensing opening 21. The protector 51 is detachably held in the protector case 52. The protector case 52 is attached to the center of the top plate portion 16 and has housing spaces 55 and 56 having entrances 58 and 59 on the front side facing the drinking mouth side 17 and the rear side facing the inclined side 18 on the opposite side. Each of the accommodating spaces 55 and 56 is a thin plate-like space. When the protector 51 is housed in the housing space 55 in front of the protector case 52 before the cup-shaped container 2 is opened, the protector 51 coming out of the housing space 55 closes the pouring opening 21 and closes the dust. The intrusion is blocked and the cutting blade member 7 is protected. On the other hand, when opening the pouring opening 21 to open the lid 5 and forming the drinking mouth, the protector 51 is accommodated in the accommodating space 56 behind the protector case 52, and the protector 51 opens or dispenses. Avoid getting in the way.

  21 to 25 show another embodiment of the opening member 1b and the protector structure 50b.

  In the opening member 1b, a protective ring 78 having a predetermined height is formed on the outer edge of the top plate portion 16 of the opening member 1b so as to protrude upward in a bank shape and make a round.

  The protector case 52 is fixed to the upper surface of the top plate portion 16 inside the protective ring 78, but the height of the upper surface of the protector case 52 is the same as or lower than the height of the protective ring 78. Has been. As a result, the protective ring 78 functions as a guard bead with respect to the protector case 52 to protect the protector case 52. However, since the accommodation spaces 55 and 56 for accommodating the protector 51 and the entrances and exits 58 and 59 thereof are located below the upper surface of the protective ring 78, when the protector 51 is taken in and out of the entrances and exits 58 and 59, There is a possibility that the protective ring 78 may be in the way. Therefore, the height of the portion 81 on the protective ring 78 that may interfere with the protector 51 in the direction in which the protector 51 is put in and out is lowered. The protector 51 is inserted into the entrance / exit 58 of the protector case 52 to close the pouring opening 21 as shown in FIGS. 21 and 22, and the protector 51 is attached to the protector case 52 as shown in FIGS. It is inserted into the entrance / exit 59 to open the pouring opening 21 and is held by the protector case 52.

  25 to 28 show an opening member 1c according to another embodiment of the present invention.

  The opening member 1c is different from the opening member 1a according to the first embodiment in the mounting height of the cutting blade member 7.

  That is, in the opening member 1 c, the base end portion attachment position 44 of the cutting blade member 7 is lower than the top plate portion 16 by a distance of H. With this structure, the cutting blade 27 is disposed close to the lid body 5 to be cut, and the lid body 5 can be opened larger. Moreover, by making the cutting blade member 7 lower than the top plate portion 16, the frame body 6 can function as a guard bead for the cutting blade member 7, and the cutting blade member 7 can be protected.

  A straw hole 33 is formed in the operation handle portion 26. When the straw hole 33 is formed in the operation handle portion 26, a straw (not shown) is inserted into the straw hole 33, the lid body 5 of the cup type container 2 is pierced and inserted into the cup type container 2. The contents can be poured out only with a straw.

  The boundary between the operation handle portion 26 and the top plate portion 16 is configured as a hinge 30. On both sides of the hinge, a locking projection 37 b is provided on the back surface of the operation handle portion 26, and the back surface of the top plate portion 16 is provided. Is provided with a locking receptacle 38b, and the locking projection 37b is fitted and locked to the locking receptacle 38b at a position where the cutting blade member 7 finishes the opening operation. Is maintained.

  29 and 30 show an opening member 1d according to another embodiment of the present invention. In the opening member 1d, a finger stopper 83 is provided at the tip of the operation handle portion 26. The finger stopper 83 is provided so as to rise like a bank from the upper surface of the operation handle portion 26. This finger stop 83 is for preventing the finger from slipping when the operation finger is pressed with the finger for opening the operation finger or preventing the contents from adhering to the finger. Can be stabilized.

  In this opening member 1d, the seal with the cup-type container 2 is sealed by the seal fin 41. However, as shown in FIG. 31, a seal fin protection ring 41a may be provided along with the seal fin 41. . In other words, the embodiment shown in FIG. 31 also corresponds to the seal fin 41 on the inner peripheral surface side of the seal fin 41 for the purpose of protecting the seal fin 41 from contact between the opening members during transportation of the opening member. A seal fin protection ring 41a is formed around the center line.

The top view of the cup-shaped container equipped with the opening member. The front view of the cup-shaped container equipped with the opening member. The top view of an opening member. The longitudinal cross-sectional view of an opening member. The longitudinal cross-section partial explanatory drawing which shows the seal structure between an opening member and a cup type container. Plane explanatory drawing of an opening member. Plane explanatory drawing of another opening member. The top view of a cover body. It is a figure which shows the cup-type container equipped with the opening member of another Example, (a) is plane explanatory drawing, (b) is side explanatory drawing. The front view of the cup type container equipped with the opening member of another Example. It is a figure which shows the cup-type container equipped with the opening member of another Example, (a) is plane explanatory drawing, (b) is side explanatory drawing. It is a figure which shows the cup-type container equipped with the opening member of another Example, (a) is plane explanatory drawing, (b) is side explanatory drawing. The front view of the cup type container equipped with the opening member of another Example. The front view of the cup type container equipped with the opening member of another Example. The front view of the cup type container equipped with the opening member of another Example. Explanatory drawing of the cup-type container equipped with the opening member of another Example. The bottom view of the opening member of another Example. The front view of the cup type container equipped with the opening member of another Example. Explanatory drawing of the longitudinal cross-section of the opening member of another Example. Explanatory drawing of the longitudinal cross-section of the opening member of another Example. Plane | planar explanatory drawing of the opening member of another Example. Explanatory drawing of the longitudinal cross-section of the opening member of another Example. Plane | planar explanatory drawing of the opening member of another Example. Explanatory drawing of the longitudinal cross-section of the opening member of another Example. The front view of the opening member of another Example. The longitudinal cross-sectional view of the opening member of another Example. Plane | planar explanatory drawing of the opening member of another Example. The back view of the opening member which concerns on another Example. The longitudinal cross-sectional view of the cup-shaped container equipped with the opening member of another Example. The top view of the opening member of another Example. The longitudinal cross-sectional view of the cup-shaped container equipped with the opening member of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b, 1c, 1d Opening member 2 Cup type container 3 Flange 4 Open opening 5 Lid body 6 Frame body 7 Cutting blade member 8 Cover cylinder part 10 Center line 11 Attachment cylinder part 12 Shoulder 13 Protruding ring 14 Concave groove 15 Cylindrical body portion 16 Top plate portion 17 Drinking side 18 Inclined side 21 Opening portion 22 Standing wall 23 Folding portion 24 Outer tube 25 Inner tube 26 Operation handle portion 27 Cutting blade 28 Tip cutting blade 30 Hinge 31 Connecting member 32 Escape Part 33 Straw hole 34 Pressing surface 35 Strip groove 36 Lock mechanism 37, 37b Locking projection 38, 38b Locking receiver 41 Seal fin 41b Seal fin protective ring 42 Drinking mouth 43 Score groove 44 Base end part mounting position 50a, 50b Protector structure 51 protector 52 protector case 55 accommodation space 56 accommodation space 58 doorway 59 doorway 61a, 1b, 61c, 61d Tack seal 62 Main body part 63 Pull tab 64 Plane outline 65 Cover part 66 Base 67 Boundary 68 Side face 71 Protective ring 72 Narrow part 73 Adhering area 74 Shrink film 75 Overcap 76 Top plate 77 Mounting leg 78 Protective ring 81 Parts on the guard ring 83 Finger stop

Claims (16)

An opening member for a cup-type container having a cutting blade attached to the cup-type container and capable of forming a spout by cutting and opening a lid that closes the opening of the cup-type container. 2. The opening of the cup-shaped container according to claim 1, wherein the opening member includes the frame body that can be attached to the cup-shaped container and a cutting blade member having the cutting blade attached to the frame body. Element. The frame body is a cylindrical cover tube portion located above the cup shape container when mounted on the cup shape container, and a mounting tube portion provided at a lower portion of the cover tube portion to be attached to the cup shape container. And a top plate portion that closes at least a portion of the upper portion of the cover tube portion, and has a pouring opening in a portion of the top plate portion, and the cutting blade member is a cover tube portion in the pouring opening. The cup-shaped container opening member according to claim 2, wherein the cup-shaped container opening member is supported so as to be displaceable. In a state where the opening member is attached to the upper end of the cup-type container, a sealing member is provided for tightly sealing between at least the portion where the opening for pouring of the frame is located and the upper end or the lid of the cup-type container The cup-shaped container opening member according to claim 3. The cup-shaped container opening member according to claim 4, wherein the seal member has a fin shape or a convex shape protruding from an inner peripheral surface of the frame body. An opening member that may interfere with the face portion other than the human lip when the lip is applied to the opening of the opening member attached to the cup-type container and the contents are directly poured into the human mouth. 6. The cup-shaped container opening member according to any one of claims 3 to 5, wherein a relief for avoiding interference is provided in the portion. The cup-shaped container opening member according to any one of claims 3 to 6, wherein the pouring opening is covered and closed with a covering member in a state in which the cutting blade member is included. The opening member for a cup-type container according to any one of claims 3 to 7, wherein the covering member is a detachable tack seal. The opening member for a cup-type container according to any one of claims 3 to 7, wherein the covering member is a shrink film. The cup-shaped container opening member according to any one of claims 3 to 7, wherein the covering member is a removable overcap. The cup-shaped container opening member according to any one of claims 3 to 7, wherein the covering member is a protector that can be opened and closed. The cup-shaped container opening member according to any one of claims 3 to 11, wherein the cutting blade member is connected to the frame body by a severable connecting member. The top plate part or the cutting blade member is formed with a score hole for forming a straw hole or a straw hole into which a straw can be inserted, according to any one of claims 3 to 12. A cup-shaped container opening member. The cutting blade member is formed with a locking projection or a locking receptacle, and the top plate portion or the cover tube portion is formed with a locking projection or a locking projection that fits into the locking projection or the locking receptacle, respectively. The opening member for a cup-type container according to any one of claims 3 to 13, wherein the opening member is formed. The cup-shaped container opening member according to any one of claims 3 to 14, wherein a protrusion for finger fastening is formed at an end of the cutting blade member. The upper end of at least the cover tube portion of the cover tube portion to which the dispensing opening is approaching is a double wall provided with a folded portion that forms a smooth outer surface. 2. An opening member for the cup-type container according to item 1.

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