JP2015227173A - Cup container with lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cup container with a lid capable of maintaining an opening member of which seal material is broken at an opening completion position without providing a locking mechanism.SOLUTION: A cup container with a lid includes: a lid body 3 which is attached to a cup body 2 of a blind cylinder shape and has a top wall part 33 for covering an opening part 2a thereof; and seal material 4 which is arranged between the cup body 2 and the lid body 3 and tightly seals the opening part 2a therewith. The lid body 3 is arranged on the upper side of a through hole 36 formed on the top wall part 33 or in the through hole 36 and is provided with an opening member 35 which breaks the seal material 4 and opens the seal material, the opening member 35 has a front edge which is set as a blade part 35a capable of breaking the seal material 4 and a rear edge 35b which is connected to the top wall part 33 via a connection part 3A, the connection part 3A includes a hinge part 37 and a belt body 38 formed so as to be elastically deformable and, in the longitudinal cross-section view of the lid body 3 passing through the opening member 35 and the belt body 38, a rear edge part 35A of the opening member 35 and a connection part 33A with the belt body 38 on the top wall part 33 are inclined such that the whole assumes protrusion toward the seal material 4 side.

Description

  The present invention relates to a cup container with a lid.

  As a cup container with a lid of this type, for example, as shown in Patent Document 1 below, a bottomed cylindrical cup body, and a top wall portion that is attached to the cup body and covers an opening of the cup body And a seal member disposed between them and sealing the opening, and the lid is disposed above or in the through hole formed in the top wall. A structure having an opening member that breaks and opens the sealing material is known.

  The cup container with a lid described in Patent Document 1 includes a lock mechanism that locks the posture of the opening member when opening is completed, and the lock mechanism has two members, a lock protrusion and a lock receiver that can be fitted. One of the two members is formed on the opening member, and the other member is formed on the top wall of the lid.

Japanese Patent No. 4258603

However, since the above-described conventional cup container with a lid is provided with a complicated locking mechanism such as a locking projection or a lock receiver, there is a problem that the structure is complicated.
Further, in the structure in which the lock mechanism is provided, it is necessary to push the opening member to the unlocking completion position to be locked. When the pushing amount is insufficient, the opening member may not be fixed at the opening completion position.

  This invention is made in view of such a situation, Comprising: The cup container with a lid | cover which can maintain the opening member which fractured | ruptured the sealing material in the opening completion position, without providing a locking mechanism is provided. For the purpose.

In order to achieve the above object, the present invention provides the following means.
A cup container with a lid according to the present invention includes a bottomed cylindrical cup body, a lid body that is attached to the cup body and has a top wall portion that covers an opening of the cup body, and the cup body and the lid. A sealing material that is disposed between the body and the opening to seal the opening, and the lid is disposed above or in the through hole formed in the top wall, and the sealing material is A cup container with a lid provided with an opening member that is opened by breaking, wherein the opening member is connected to the top wall portion via a connecting portion, and the connecting portion is elastically deformable with a hinge portion. And in the longitudinal sectional view of the lid member passing through the opening member and the belt body, a base end portion of the opening member and a connection portion of the ceiling wall portion with the belt body Is characterized in that it is inclined so as to project toward the sealing material side as a whole. .

In the cup container with a lid according to the present invention, by pushing the opening member downward, the sealing material is broken by a portion of the opening member away from the base end portion, and the inside of the cup and the outside are communicated. At this time, in the longitudinal cross-sectional view, first, the opening member has a posture in which the base end portion extends in a straight line with the connection portion of the top wall portion, and then continues to press the opening member, The opening member has a posture such that the base end portion of the opening member and the entire connecting portion of the top wall portion with the belt body project toward the opposite side to the sealing material side.
In this process, the belt body is tensile-deformed until the base end portion of the opening member and the connection portion of the top wall portion extend in a straight line in the longitudinal sectional view, and then the base end portion of the opening member, and When the whole of the connecting portion of the top wall portion protrudes in the direction opposite to the seal material side, it contracts and deforms. That is, with reference to the straight line as a reference, the restoring force (elastic force) of the band is applied to the opening member by exceeding this.
That is, in order to return the opening member to which the urging force toward the sealing material side is applied to the original position by the restoring force of the belt body, the belt body needs to be deformed by tension, so the opening member is maintained at the opening completion position can do.

  Moreover, in the cup container with a lid according to the present invention, it is preferable that the belt body is curved so as to protrude in a direction opposite to the sealing material side.

  In this case, it becomes easy to secure the allowance for extension of the belt, and in the process of pressing the opening member, the belt can be elastically deformed with a small force, and excellent operability can be provided.

  Moreover, in the cup container with a lid according to the present invention, it is preferable that the connecting portion is configured such that the hinge portions are arranged on both sides of the belt body.

  In this case, since the opening member is rotatably supported by the hinge portions on both sides of the belt body, the rotation of the opening member can be stabilized and the operability at the time of opening can be improved.

  Moreover, in the cup container with a lid according to the present invention, it is preferable that each of the opening member and the top wall portion is inclined toward the connecting portion.

  In this case, since the opening member and the top wall portion are uniformly inclined surfaces, the manufacture is facilitated.

  According to the cup container with a lid according to the present invention, it is possible to maintain the opening member in which the sealing material is broken at the opening completion position without providing a lock mechanism.

It is a top view which shows the cover body of the cup container with a lid by embodiment of this invention. It is a longitudinal cross-sectional view of the cup container with a lid shown in FIG. FIG. 6 is a longitudinal and vertical sectional view showing a state in which a sealing member is opened by operating an opening member in a cup container with a lid, and the opening member is located at a maximum tensile position. It is a longitudinal cross-sectional view which shows the state in which the opening member was located in the opening completion position in the cup container with a lid. It is a top view which shows the modification of the cover body of a cup container with a lid | cover, Comprising: It is a figure corresponding to FIG. It is a longitudinal cross-sectional view which shows the other modification of a cup container with a lid | cover, Comprising: It is a figure corresponding to FIG. It is a longitudinal cross-sectional view which shows the other modification of the cup container with a lid | cover, Comprising: It is a figure corresponding to FIG.

  Hereinafter, embodiments of a cup container with a lid according to the present invention will be described with reference to the drawings.

  As shown in FIG.1 and FIG.2, the cup container 1 with a lid | cover of this embodiment is attached to the cup body 2 in which the contents are accommodated, and the cup body 2, and covers the opening 2a of the cup body 2 A lid 3 having a wall 33, a seal member 4 disposed between the cup body 2 and the lid 3 and sealing the opening 2a, and an overcap 5 which is attached to the lid 3 and covers the lid 3 And.

The cup body 2 has a bottom portion 21 and a body portion 22 and is formed in a circular bottomed cylindrical shape in a cross-sectional view.
Here, the central axes of the cup body 2 and the lid body 3 are located on a common axis. In this specification, this common axis is referred to as a container axis O, and among the directions along the container axis O (the container axis O direction), the bottom 21 side of the cup body 2 is referred to as the lower side (lower side), and the lid body 3 side. Is the upper side (upper side), and in a plan view as viewed from the container axis O direction, the direction orthogonal to the container axis O is referred to as the radial direction, and the direction around the container axis O is referred to as the circumferential direction.

The bottom portion 21 of the cup body 2 has a disc shape and is disposed in the lower end portion of the body portion 22 to close the opening of the lower end portion. In the illustrated example, the bottom portion 21 is disposed slightly above the lower end of the body portion 22.
The body 22 of the cup body 2 is gradually reduced in diameter from the upper side to the lower side. Moreover, the opening part 2a of the cup body 2 is provided with the flange part 23 which protrudes toward the outer side of the radial direction over the perimeter. The sealing material 4 is adhered to the upper surface of the flange portion 23, and the opening 2a is sealed.

  The sealing material 4 is formed of, for example, a single layer or a laminated sheet such as a synthetic resin or a metal foil, or a laminated sheet in which a metal thin film layer and a synthetic resin layer are laminated. Moreover, as a method of adhering the sealing material 4 to the upper surface of the flange portion 23, for example, adhesion, pressure bonding, heat welding, high frequency welding, adhesion, and the like can be cited.

  The lid body 3 has a mounting cylinder portion 31 into which the flange portion 23 of the cup body 2 is fitted, and a peripheral wall portion 32 that is formed to have a smaller diameter than the mounting cylinder portion 31 and is disposed above the mounting cylinder portion 31. And a top wall portion 33 that extends in the radial direction and has a circular shape in a top view and closes the inside of the peripheral wall portion 32.

The peripheral wall 32 includes an inner cylinder 32A, an outer cylinder 32B, and an annular connecting plate 32C that connects the upper ends of both the cylinders 32A and 32B, and the top wall 33 is formed on the inner peripheral surface of the lower end of the inner cylinder 32A. Are connected to each other.
The outer cylinder 32B is formed so as to gradually decrease in diameter from the lower side toward the upper end. The lower end of the outer cylinder 32 </ b> B is connected to the upper end of the mounting cylinder part 31 via the connecting wall 34.

  On the inner peripheral surface of the mounting cylinder portion 31, an engagement convex portion 31 a that protrudes radially inward over the entire circumference is formed. As a result, by attaching the lid 3 to the cup body 2, the lower surface of the connecting wall 34 abuts the flange portion 23 from above via the sealing material 4, and the engaging convex portion 31 a is undercut fitted into the flange portion 23. The lid 3 is attached to the cup body 2. In addition, about the mounting (fixing) method of the mounting cylinder part 31 with respect to the flange part 3, it is not limited to the said undercut fitting.

The lid 3 is provided with an opening member 35 that is disposed above or in the through hole 36 formed in the top wall portion 33 and breaks and opens the sealing material 4. In FIG. 2, in this embodiment, a part of a later-described blade portion 35 a of the opening member 35 is located in the through hole 36.
The through hole 36 is formed in a rectangular shape extending in the radial direction in a plan view of the top wall portion 33. One end portion in the radial direction of the through hole 36 is located at the central portion in the radial direction of the top wall portion 33, and the other end portion in the radial direction is located at the outer peripheral edge portion of the top wall portion 33. . Hereinafter, one end side of the through hole 36 in the radial direction is referred to as a cup rear side, and the other end side of the through hole 36 is referred to as a cup front side. Moreover, the direction orthogonal to the cup front-back direction is referred to as the cup width direction (vertical direction in FIG. 1).
The through hole 36 is provided so as to pass through when the opening member 35 is rotated around a connecting portion 3 </ b> A which will be described later to reach the sealing material 4.

In the top wall portion 33, the inclined portion 33B extending from the through hole 36 toward the rear of the cup extends gradually upward toward the rear of the cup.
Further, in the top wall portion 33, the drinking mouth portion 33a extending from the front side portion of the through hole 36 toward both outer sides in the cup width direction extends gradually upward from the front of the cup toward the rear of the cup. And the part (henceforth a main-body part 33b) extended toward the cup back from the drinking mouth part 33a among the top wall parts 33 is extended toward the upper direction gradually toward the cup back.
The main body portion 33b gradually extends downward from the outer side in the cup width direction toward the inner side, and is connected to the outer edge of the inclined portion 33B in the cup width direction.

The opening member 35 has a front end (front end) as a blade portion 35a capable of breaking the sealing material 4, and a rear end (base end) 35b connected to the top wall portion 33 via the connection portion 3A. It is provided so as to be rotatable around. The opening member 35 extends in the front-rear direction of the cup, and is disposed so as to be gradually inclined upward toward the front of the cup. A blade portion 35 a is provided so as to protrude downward from the front end of the opening member 35. The blade portion 35a is located away from the container axis O in the radial direction, and is disposed on the opening member 35 so as to face the upper side of the sealing material 4.
As shown in FIGS. 3 and 4, such an opening member 35 is pressed from above, whereby the sealing material 4 is broken by the blade portion 35 a and rotated downward about the connecting portion 3 </ b> A. To do.

As shown in FIGS. 1 and 2, the connecting portion 3A includes a first hinge portion 37 (hinge portion) that connects the rear end 35b of the unsealing member 35 to the inclined portion 33B, and a belt body that is elastically deformable. 38.
The first hinge portion 37 is disposed on both sides of the band 38 in the cup width direction.
The band 38 is curved so as to protrude upward in a longitudinal sectional view. The rear end portion of the band body 38 is connected to the inclined portion 33B via the second hinge portion 38a, and the front end portion of the band body 38 is connected to the unsealing member 35 via the third hinge portion 38b. The pair of first hinge portions 37 is located between the second hinge portion 38a and the third hinge portion 38b in the cup front-rear direction.

  And in the longitudinal cross-sectional view (AA line arrow shown in FIG. 1) of the cover body 3 which passes along the opening member 35 and the belt | band | zone body 38, 35A of rear end parts (base end part) of the opening member 35, and a ceiling wall part 33 (inclined portion 33B), the connecting portion 33A with the band 38 is inclined so that the entire portion protrudes downward in a V shape. That is, the entire opening member 35 and the inclined portion 33B are inclined toward the connecting portion 3A in the longitudinal sectional view.

  Here, when the opening member 35 is turned to the unopened position R0 and the opening member 35 is rotated, as shown in FIG. 3, the rear end portion 35A of the opening member 35 corresponds to the inclined portion 33B. A position extending in a straight line with the connecting portion 33A is defined as a maximum extension position R1, and as shown in FIG. 4, a position further rotated downward beyond the maximum extension position R1 is defined as an opening completion position R2. .

The belt 38 is not elastically deformed when the unsealing member 35 is located at the unopened position R0, and is subjected to tensile deformation toward the maximum extension position R1 by rotating, and when the band 38 is at the maximum extension position R1. Since the linear distance connecting the second hinge part 38a and the third hinge part 38b is maximized, the amount of tensile deformation is also maximized. Furthermore, the band 38 is contracted and deformed when the opening member 35 is rotated beyond the maximum extension position R1 and the opening member 35 is located at the opening completion position R2.
The band 28 may be in a state in which no elastic deformation occurs when the opening member 35 is located at the opening completion position R2.

  As shown in FIG. 2, the overcap 5 is a thin molded product made of, for example, a synthetic resin. The overcap 5 has a diameter while following the shape of the top wall 33, the peripheral wall 32, and the mounting cylinder 31 in the lid 3. It is formed in the top cylinder shape formed so that it may cover from the outer side of a direction. The exterior part 51 located at the lower end of the overcap 5 extends below the mounting cylinder part 31 of the lid 3, and is attached to the mounting cylinder part 31 via a locking part 51 a protruding toward the inside in the radial direction. On the other hand, it is undercut fitted. Accordingly, the overcap 5 is detachably attached to the lid 3. However, the mounting (fixing) method of the exterior portion 51 to the lid 3 is not limited to the undercut fitting.

According to the cup container with a lid by this embodiment demonstrated above, there exist the following effects.
When drinking the contents in the lidded cup container 1 as shown in FIGS. 2 and 3, the unsealing member 35 is rotated downward by pushing it down, and the sealing material 4 is broken by the blade portion 35a at the tip thereof. At the same time, the inside of the cup body 2 communicates with the outside. At this time, in the longitudinal sectional view, first, the opening member 35 has a posture in which the rear end portion 35A extends in a straight line with the connection portion 33A of the top wall portion 33, that is, the maximum extension position R1, and then the opening member By continuing to press 35, as shown in FIG. 4, the opening member 35 has a posture in which the rear end portion 35A of the opening member 35 and the whole of the connection portion 33A project upward. Become. The connecting portion 3A is turned upside down at the unopened position R0 and the unsealed position R2.

In this process, the band 38 is tensile-deformed until the rear end portion 35A of the unsealing member 35 and the connecting portion 33A are positioned at the maximum extension position R1 extending in a straight line in the longitudinal sectional view shown in FIG. Thereafter, as shown in FIG. 4, the rear end portion 35A of the unsealing member 35 and the entire connecting portion 33A are contracted and deformed when projecting upward. That is, the restoring force (elastic force) of the band 38 is applied to the opening member 35 by exceeding the straight line (maximum extension position R1) as a reference.
That is, in order to return the opening member 35 applied with the biasing force toward the opening completion position R2 by the restoring force of the band body 38 to the original position, the band body 38 needs to be tensile-deformed. It can be maintained at the opening completion position R2.

  Further, in the present embodiment, since the band body 38 is curved so as to protrude upward, it becomes easy to secure an extension allowance of the band body 38, and in the process of pressing the opening member 35, the band body 38. Can be elastically deformed with a small force, and can be provided with excellent operability.

  Moreover, in the cup container 1 with a lid of this embodiment, the hinge part 37 is arrange | positioned in the connection part 3A at the both sides of the cup width direction of the strip | belt body 38, and the opening member 35 rotates by both the hinge parts 37 and 37. Since it is supported as possible, the rotation of the opening member 35 can be stabilized, and the operability at the time of opening can be improved.

  Further, in the present embodiment, the opening member 35 and the top wall portion 33 are all inclined toward the connecting portion 3A and become a uniform inclined surface, so that the manufacture is facilitated.

  Thus, in the cup container 1 with a lid, the opening member 35 which broke the sealing material 4 can be maintained in the opening completion position R2 without providing a lock mechanism.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the hinge portions 37 and 37 are provided on both sides of the band body 38 in the cup width direction, but the present invention is not limited to such an arrangement.
The first modified example shown in FIG. 5 is a modified example of the lid-equipped cup container 1 described in the above embodiment, and in this modified example, the connecting portion 3A formed on the lid body 3 is at the center in the cup width direction. A hinge portion 37 is provided, and a band 38 is provided on both sides of the hinge portion 37. In this case, in order to pull and deform the band 38, a larger force is required than in the configuration in which the band 38 is provided in the center in the cup width direction of the above-described embodiment. Therefore, in a state where the opening member 35 is maintained at the opening completion position, it is necessary to pull and deform the band body 38 with a large force in order to return the opening member 35 to the original position, so that the opening member 35 can be opened more reliably. It can be maintained in the complete position.

In the above-described embodiment, the rear end portion 35A of the opening member 35 and the connection portion 33A are inclined so that the whole protrudes downward in the longitudinal sectional view, and the opening member 35 is located behind the cup. Although it is set as the structure which inclines upward gradually toward a cup front from, it is not limited to this.
For example, the lid-equipped cup container 1 </ b> A according to the second modification shown in FIG. 6 has a configuration in which the opening member 35 at the unopened position R <b> 0 is horizontally arranged along the cup front-rear direction. In the second modification, the front end portion of the plate surface of the opening member 35 forms a blade portion 35a. Also in the case of the second modification, the rear end portion 35A of the unsealing member 35 and the connection portion 33A are formed so as to protrude downward as a whole in the longitudinal sectional view. As described above, since at least one of the rear end portion 35A of the opening member 35 and the connecting portion 33A is inclined, it has a shape that protrudes downward, as in the above-described embodiment. In order to return the opening member 35 to the original position, it is necessary to tensilely deform the band body 38, so that the opening member 35 can be maintained at the opening completion position.

  Further, for example, in the lid-equipped cup container 1B shown in FIG. 7, the front portion 35c of the cup front side of the opening member 35 is horizontally disposed along the cup front-rear direction at the unopened position R0. Yes. Also in the case of the third modification, in the longitudinal sectional view, the rear end portion 35A of the unsealing member 35 and the connection portion 33A are inclined so that the whole protrudes downward. Therefore, in the third modified example, in order to return the opening member 35 to the original position, it is necessary to tensilely deform the band body 38 in the same manner as in the above-described embodiment, so the opening member 35 is maintained at the opening completion position. be able to.

  Further, in the above-described embodiment, the band 38 is curved so as to protrude upward, but is not limited thereto. For example, in the embodiment shown in FIG. 2, in the state where the unsealing member 35 is in the unopened position R0, it may be a band extending in the horizontal direction along a straight line connecting the second hinge portion 38a and the third hinge portion 38b. Is possible. In this case, although the elongation allowance at the time of the tensile deformation is smaller than that of the band 38 that protrudes upward, the displacement due to the tensile deformation becomes maximum when the opening member 35 is at the maximum extension position R2. The same effect as the embodiment is achieved.

In the above-described embodiment, the overcap 5 is provided. However, the overcap 5 can be omitted.
Further, the shapes of the cup body 2, the peripheral wall portion 32, the top wall portion 33, etc. of the lid body 3 can be appropriately changed.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by the known component, and you may combine the modification mentioned above suitably.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Cup container with a lid 2 Cup body 2a Opening part 3 Lid body 3A Connection part 4 Sealing material 31 Mounted cylinder part 32 Peripheral wall part 33 Top wall part 33A Connection part 33B Inclination part 35 Opening member 35A Base end part 35a Blade Part 35b Base end 36 Through hole 37 Hinge part 38 Band O Container shaft R0 Unopened position R1 Maximum extension position R2 Opening completion position

Claims (4)

A bottomed cylindrical cup body,
A lid that is attached to the cup body and has a top wall that covers the opening of the cup body;
A seal member disposed between the cup body and the lid body for sealing the opening;
With
The lid body is a cup container with a lid provided with an opening member that is disposed above or in the through hole formed in the top wall portion and breaks and opens the sealing material,
The opening member has a proximal end connected to the top wall portion via a connecting portion,
The connecting portion includes a hinge portion and a belt body formed to be elastically deformable,
In a longitudinal sectional view of the lid passing through the opening member and the belt, the base end portion of the opening member and the connection portion of the ceiling wall with the belt are entirely directed toward the sealing material. A cup container with a lid, which is inclined so as to present a protrusion.   2. The cup container with a lid according to claim 1, wherein the band body is curved so as to protrude in a direction opposite to the seal material side.   The said connection part is a cup container with a lid | cover of Claim 1 or 2 by which the said hinge part is arrange | positioned at the both sides of the said strip | belt body.   4. The cup container with a lid according to claim 1, wherein each of the opening member and the top wall portion is inclined toward the connecting portion. 5.

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