Container with opening blade

Abstract

To provide a container with an opening blade that allows an opening state of a drinking spout to be easily maintained after forming the drinking spout with the opening blade.SOLUTION: A container 1 with an opening blade includes: a container body 2 having a mouth part 2a; a sheet-like member 3 that seals the mouth part 2a; an opening member 4 disposed on an outside of the sheet-like member 3 and having an opening blade 9 and a locking piece 10; and a cap 5 disposed on an outside of the opening member 4 and having a pushing piece 13 and a protruding piece 14. When the cap 5 is pushed into the pushing piece 13 by a pushing operation, the opening blade 9 pushed in by the pushing piece 13 and rotated inward opens the sheet-like member 3, and thereby the cap 5 is able to form a drinking spout 17, further, when the cap 5 is pushed in by a pushing operation, the protruding piece 14 rotates outward in conjunction with the pushing piece 13, and the locking piece 10 which rotates outward in conjunction with the opening blade 9, is fitted by elastic deformation, and thereby the cap 5 is able to form a fitting opening 18.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a container with an opening blade. [Background technology]

[0002] A container with an opening blade is known that has a container body with a mouth, a sheet-like member that seals the mouth, an opening blade that is positioned on the outside of the sheet-like member, and a cap that can form a drinking spout by opening the sheet-like member with the opening blade (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-222051 Summary of the Invention [Problem to be solved by the invention]

[0004] In the container with an opening blade as described above, it is desirable that the drinking spout can be easily maintained in an open state after the drinking spout is formed by the opening blade.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a container with an opening blade that makes it easy to maintain the drinking spout open after the drinking spout is formed by the opening blade. [Means for solving the problem]

[0006] One aspect of the present invention is as follows.

[0007] [1] a container body having a mouth; a sheet-like member that seals the opening; an opening member disposed on the outer side of the sheet-like member and having an opening blade and a locking piece; a cap disposed outside the unsealing member and having a pushing piece and a protruding piece; The cap is configured to form a drinking spout by being pushed against the pushing piece, and the sheet-like member is opened by the opening blade which is pushed by the pushing piece and rotated inward, and A container with an opening blade, wherein the cap is capable of forming an insertion opening into which the locking piece, which has rotated outward in conjunction with the opening blade, is elastically deformed by the pushing operation causing the protruding piece to rotate outward in conjunction with the pushing piece.

[0008] [2] The opening member has an opening member fixing portion fixed to the opening portion, and an opening member hinge portion connected to the opening member fixing portion. Centered on the first rotation axis an opening member rotation part that is rotatably connected to the opening blade and has the locking piece; In a direction along the first rotation axis The locking piece at the base end of the opening blade The cutout where Two points located on both sides are connected to the opening member hinge portion, The cap has a cap fixing portion fixed to the opening portion, and a cap hinge portion connected to the cap fixing portion. Centered on the second rotation axis a cap rotation portion that is rotatably connected to the cap and has the pushing piece and the protruding piece; In a direction along the second rotation axis The protruding piece at the base end of the pushing piece A slit separates the The two points on both sides are connected to the cap hinge part. R A container with an opening blade as described in [1].

[0009] [3] the opening member has an opening member fixing portion fixed to the opening portion, and an opening member rotating portion rotatably connected to the opening member fixing portion via an opening member hinge portion, and having the opening blade and the locking piece, the cap has a cap fixing portion fixed to the mouth portion, and a cap rotating portion rotatably connected to the cap fixing portion via a cap hinge portion, the cap having the pushing piece and the protruding piece, The container with an opening blade according to [1] or [2], wherein the opening member fixing portion and the cap fixing portion are fitted together so that circumferential rotation of the opening portion relative to each other is restricted. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a container with an opening blade that makes it easy to maintain the drinking spout open after the drinking spout has been formed by the opening blade. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a vertical cross-sectional view showing an unopened state of a container with an opening blade in one embodiment of the present invention. [Figure 2] FIG. 2 is a top view of the unsealing member shown in FIG. [Figure 3] FIG. 2 is a top view of the cap shown in FIG. [Figure 4] FIG. 2 is a partially enlarged view of FIG. [Figure 5] 2 is a vertical cross-sectional view showing the opened state of the container with an opening blade shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] As shown in FIG. 1, in one embodiment of the present invention, a container with an opening blade 1 has a container body 2, a sheet-like member 3, an opening member 4, and a cap 5.

[0014] The container body 2 is cup-shaped and includes a cylindrical body 6 whose diameter tapers downward, a flange 7 extending radially outward from the upper end of the body 6, and a bottom 8 closing the lower end of the body 6. The upper part of the body 6 and the flange 7 form a cylindrical opening 2a centered on the central axis O of the body 6. The body 6 is not limited to a cylindrical shape, and may be configured in a cylindrical shape other than a cylindrical shape, such as an elliptical or rectangular shape. The material from which the container body 2 is formed is not particularly limited, and may be, for example, paper, resin, or the like.

[0015] For ease of explanation, the direction along the central axis O is also referred to as the up-down direction, the direction along the central axis O from the bottom 8 side to the mouth 2a side is also referred to as the upward direction, the opposite direction is also referred to as the downward direction, the direction along a straight line perpendicular to the central axis O is also referred to as the radial direction, the direction circumferentially around the central axis O is also referred to as the circumferential direction, and a cross section including the central axis O is also referred to as a longitudinal cross section.

[0016] A beverage (not shown) is contained inside the container body 2. There are no particular restrictions on the beverage, and it may be a hot beverage or a cold beverage.

[0017] The sheet-like member 3 is stretched so as to cover the upper end of the mouth portion 2a, and its outer peripheral edge is fixed to the upper surface of the flange portion 7 to seal the mouth portion 2a. The sheet-like member 3 can be formed, for example, from an aluminum or resin film.

[0018] 2 and 4, the opening member 4 has an opening member fixing portion 4a fixed to the opening portion 2a, and an opening member rotating portion 4c rotatably connected to the opening member fixing portion 4a via an opening member hinge portion 4b and having an opening blade 9 and a locking piece 10, and is disposed on the outside of the sheet-like member 3. Two points on either side of the locking piece 10 at the base end of the opening blade 9 are connected to the opening member hinge portion 4b.

[0019] The opening member 4 is an integrally molded product formed by injection molding using a resin such as an olefin resin or a polyester resin. The material from which the opening member 4 is formed is not limited to resin. Furthermore, the molding method for the opening member 4 is not limited to injection molding. The opening member 4 is not limited to an integrally molded product, and may be formed by assembling multiple members.

[0020] The opening member fixing portion 4a has an opening member outer peripheral portion 11 that forms a ring extending circumferentially and is positioned directly above the flange portion 7, and a bridging portion 12 that extends so as to bridge between two points on the opening member outer peripheral portion 11.

[0021] The unsealing member outer peripheral portion 11 has a bottom wall portion 11a having an annular shape extending in the circumferential direction, a standing wall portion 11b extending upward from the inner peripheral edge of the bottom wall portion 11a and also extending in the circumferential direction, and a top wall portion 11c extending radially inward from the upper end of the standing wall portion 11b and also extending in the circumferential direction. The bottom wall portion 11a is disposed directly above the flange portion 7. The unsealing member outer peripheral portion 11 also has a fitting recess 11d formed by cutting out the standing wall portion 11b and the top wall portion 11c at one location in the circumferential direction.

[0022] The bridging portion 12 extends horizontally through the central axis O. Note that the bridging portion 12 is not limited to a configuration that passes through the central axis O, and may be configured to extend horizontally without passing through the central axis O. The bridging portion 12 has a long plate portion 12a that extends long in the horizontal direction and forms a recess that opens upward with an outer wall and a bottom wall, and connecting portions 12b that connect the upper ends of the outer wall to the top wall portion 11c of the unsealing member outer peripheral portion 11 at both ends in the longitudinal direction (also referred to as the left-right direction) of the long plate portion 12a.

[0023] The bridge portion 12 also has a protrusion 12c that protrudes from one end of the long plate portion 12a in the short direction (also referred to as the front) in a top view and whose tip is connected to the opening member hinge portion 4b. The protrusion 12c is L-shaped and curved upward. The protrusion 12c also has a notch 12d in which the locking piece 10 is disposed. The tip of the protrusion 12c is connected to the opening member hinge portion 4b at two points on either side of the notch 12d.

[0024] When viewed from above, an opening is formed behind the bridging portion 12 (opposite the front) and surrounded by the bridging portion 12 and a part of the opening member outer periphery 11. Therefore, the opening member 4 can be formed with a small amount of material. Note that the opening member 4 is not limited to a configuration having the bridging portion 12, and may also be configured to have an opening member fixing portion 4a formed in the opening portion.

[0025] The opening blade 9 extends forward from the base end located at the tip of the protrusion 12c to the tip end (blade tip 9a) when viewed from above. The opening blade 9 also has a shape that tapers forward when viewed from above. However, the shape of the opening blade 9 is not limited to a shape that tapers forward when viewed from above. The locking piece 10 has a protrusion shape that extends rearward from the base end of the opening blade 9 when viewed from above.

[0026] The opening blade 9 has a curved shape that is convex upward when viewed in the left-right direction. More specifically, the opening blade 9 has a shape in which a linear portion is bent at two points when viewed in the left-right direction.

[0027] The cutting edge 9a of the opening blade 9 is sharp when viewed from above and from the left to right. The shape of the cutting edge 9a can be appropriately set depending on the material of the sheet-like member 3, the arrangement of the opening blade 9, etc.

[0028] 3 and 4, the cap 5 has a cap fixing part 5a fixed to the mouth part 2a, and a cap rotating part 5c rotatably connected to the cap fixing part 5a via a cap hinge part 5b and having a pushing piece 13 and a protruding piece 14, and is disposed outside the unsealing member 4. Two points on either side of the protruding piece 14 at the base end of the pushing piece 13 are connected to the cap hinge part 5b.

[0029] The cap 5 is an integrally molded product formed by sheet molding using a resin such as an olefin resin or a polyester resin. The material for forming the cap 5 is not limited to resin. Furthermore, the method for forming the cap 5 is not limited to sheet molding. The cap 5 is not limited to an integrally molded product, and may be formed by assembling multiple members.

[0030] The cap fixing portion 5a has a cap outer peripheral portion 15 that is annular and extends circumferentially and is located directly above the unsealing member outer peripheral portion 11, and an inner peripheral panel portion 16 that extends radially inward from the cap outer peripheral portion 15 to form a recess that opens upward. The cap outer peripheral portion 15 engages with the flange portion 7 so that the unsealing member outer peripheral portion 11 is sandwiched and fixed between the cap outer peripheral portion 15 and the flange portion 7. The inner peripheral panel portion 16 has a bottom surface portion 16a, an outer peripheral surface portion 16b that is annular and extends upward from the outer peripheral edge of the bottom surface portion 16a and also extends circumferentially, and a top surface portion 16c that connects the upper edge of the outer peripheral surface portion 16b to the upper edge of the upper peripheral wall 15a and extends circumferentially.

[0031] The cap outer peripheral portion 15 has a cylindrical upper peripheral wall 15a whose diameter expands downward, a stepped wall portion 15b that extends radially outward from the lower end of the upper peripheral wall 15a and also extends circumferentially, and a lower peripheral wall 15c that extends downward from the outer peripheral edge of the stepped wall portion 15b and also extends circumferentially. The lower peripheral wall 15c has a locking protrusion 15d that protrudes radially inward so as to lock onto the underside of the outer peripheral edge of the flange portion 7. The locking protrusion 15d extends circumferentially continuously or intermittently.

[0032] The upper peripheral wall 15a has a mating protrusion 15e that protrudes radially inward at one circumferential location. The mating protrusion 15e fits into the mating recess 11d so that circumferential rotation is restricted. In this way, the unsealing member fixing portion 4a and the cap fixing portion 5a fit together so that circumferential rotation relative to each other is restricted.

[0033] The pushing piece 13 extends forward from the base end to the tip end in a top view. The pushing piece 13 has a shape that tapers forward in a top view. However, the shape of the pushing piece 13 is not limited to a shape that tapers forward in a top view.

[0034] The protruding piece 14 is flush with the bottom surface 16a of the inner peripheral panel portion 16 and extends rearward from the base end of the pushing piece 13 in a top view. The protruding piece 14 is defined by a slit 5d that is U-shaped in a top view. However, the shape of the slit 5d is not limited to being U-shaped in a top view.

[0035] The base end of the pushing piece 13 is connected to the bottom surface 16a of the inner peripheral panel portion 16 via the cap hinge portion 5b. The outer edge portion other than the base end of the pushing piece 13 in top view is connected to the bottom surface 16a of the inner peripheral panel portion 16 via a planned breaking portion 5e formed by a perforation, a thin portion, or the like. Note that the outer edge portion other than the base end of the pushing piece 13 in top view is not limited to being connected to the bottom surface 16a of the inner peripheral panel portion 16 via the planned breaking portion 5e, and may be configured to be separated by a dividing portion formed by a slit, for example.

[0036] When viewed in the left-right direction, the pushing piece 13 has a curved shape that is convex upward. More specifically, when viewed in the left-right direction, the pushing piece 13 has a shape in which a linear portion is bent at two points.

[0037] As shown in Figures 4 and 5, when the cap 5 is pushed inward (downward) against the pushing piece 13, the pushing piece 13 rotates inward about the first rotation axis X1 via the opening member hinge portion 4b, and the opening blade 9 rotates inward about the second rotation axis X2 via the cap hinge portion 5b, causing the sheet-like member 3 to be cut and opened, thereby forming a drinking spout 17.

[0038] The drinking spout 17 is formed at the front part of the cap 5 by the upper peripheral wall 15a, the top surface 16c, the outer peripheral surface 16b and the bottom surface 16a, and by, for example, placing the lips against the upper peripheral wall 15a and tilting the container with opening blade 1, the contents in the container body 2 can flow out through the opening formed in the sheet-like member 3 and the opening formed between the pushing piece 13 and the cap fixing part 5a (bottom surface 16a) and be poured into the mouth.

[0039] Furthermore, by performing the above-mentioned pushing operation on the pushing piece 13, the cap 5 causes the protruding piece 14 to rotate outward (upward) around the second rotation axis X2 in conjunction with the pushing piece 13, thereby forming an insertion opening 18 into which the locking piece 10, which has rotated outward around the first rotation axis X1 in conjunction with the opening blade 9, is inserted by elastic deformation.

[0040] Therefore, according to this embodiment, once the drinking spout 17 is formed by the above-mentioned pushing operation on the pushing piece 13, the opening blade 9 and the pushing piece 13 are prevented from returning to their original positions due to the restoring force from elastic deformation by the locking piece 10 fitted into the fitting opening 18 (more specifically, by the locking piece 10 overlapping the protruding piece 14 getting caught on the edge of the fitting opening 18), so the drinking spout 17 can be easily maintained in an open state.

[0041] Furthermore, according to this embodiment, two points located on both sides of the locking piece 10 at the base end of the opening blade 9 are connected to the opening member hinge portion 4b, and two points located on both sides of the protruding piece 14 at the base end of the pushing piece 13 are connected to the cap hinge portion 5b, which allows for stable rotation of the opening blade 9 and the pushing piece 13. However, the container with opening blade 1 of this embodiment is not limited to this configuration.

[0042] Furthermore, according to this embodiment, the opening member fixing portion 4a and the cap fixing portion 5a are configured to fit together so that their circumferential rotation relative to each other is restricted, which makes it easy to position the opening blade 9 and the pushing piece 13 relative to each other in the circumferential direction. However, the container with opening blade 1 of this embodiment is not limited to this configuration.

[0043] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0044] Therefore, the container with opening blade 1 of the above-mentioned embodiment can be modified as long as it is a container with opening blade 1 that has a container body 2 having a mouth portion 2a, a sheet-like member 3 that seals the mouth portion 2a, an opening member 4 that is arranged on the outside of the sheet-like member 3 and has an opening blade 9 and a locking piece 10, and a cap 5 that is arranged on the outside of the opening member 4 and has a pushing piece 13 and a protruding piece 14, and when the cap 5 is pushed against the pushing piece 13, the sheet-like member 3 is opened by the opening blade 9 that is pushed by the pushing piece 13 and rotated inward, thereby forming a drinking spout 17, and when the cap 5 is pushed, the protruding piece 14 rotates outward in conjunction with the pushing piece 13, thereby forming an insertion opening 18 into which the locking piece 10 that rotates outward in conjunction with the opening blade 9 is inserted by elastic deformation.

[0045] For example, drinking spout 17 is not limited to the configuration formed by upper peripheral wall 15a, top surface 16c, outer circumferential surface 16b, and bottom surface 16a at the front portion of cap 5. The shapes of opening blade 9 and pushing piece 13 when viewed in the left-right direction are not limited to shapes in which a straight portion is bent at two points, but may be set to any shape that is bent to form a convex shape that is convex upward, or may be set to any other shape. [Explanation of symbols]

[0046] 1 container with opening blade 2 Container body 2a Mouth 3 Sheet-like members 4 Opening material 4a Unsealing member fixing portion 4b Opening member hinge part 4c Opening member rotating part 5 Caps 5a Cap fixing part 5b Cap hinge part 5c Cap rotation part 5d slit 5e Breaking part 6. Torso 7 Flange 8 bottom 9 Opening blade 9a cutting edge 10 Locking piece 11 Outer periphery of opening member 11a Bottom wall 11b Standing wall section 11c Ceiling wall section 11d Mating recess 12 Bridge section 12a Long plate part 12b Connection part 12c protrusion 12d Notch 13 Push-in piece 14 Protrusion 15 Cap outer periphery 15a Upper peripheral wall 15b Step wall 15c Lower peripheral wall 15d Locking protrusion 15e Mating protrusion 16 Inner panel 16a Bottom part 16b Outer peripheral surface part 16c Top part 17 Mouthpiece 18 Inlet O center axis X1 First rotation axis X2 2nd rotation axis

Claims

1. a container body having a mouth; a sheet-like member that seals the opening; an opening member disposed on the outer side of the sheet-like member and having an opening blade and a locking piece; a cap disposed outside the unsealing member and having a pushing piece and a protruding piece; The cap is configured to form a drinking spout by being pushed against the pushing piece, and the sheet-like member is opened by the opening blade which is pushed by the pushing piece and rotated inward, and A container with an opening blade, wherein the cap is capable of forming an insertion opening into which the locking piece, which has rotated outward in conjunction with the opening blade, is elastically deformed by the pushing operation causing the protruding piece to rotate outward in conjunction with the pushing piece.

2. The opening member has an opening member fixing portion fixed to the opening portion, and an opening member rotating portion rotatably connected to the opening member fixing portion via an opening member hinge portion about a first rotation axis, and having the opening blade and the locking piece, and is connected to the opening member hinge portion at two locations on both sides of a cutout portion at which the locking piece is located at the base end of the opening blade in the direction along the first rotation axis, 2. A container with an opening blade as described in claim 1, wherein the cap has a cap fixing portion fixed to the mouth portion, and a cap rotating portion connected to the cap fixing portion via a cap hinge portion so as to be rotatable around a second rotation axis, and having the pushing piece and the protruding piece, and wherein two points located on either side of a slit that separates the protruding piece at the base end of the pushing piece in the direction along the second rotation axis are connected to the cap hinge portion.

3. the opening member has an opening member fixing portion fixed to the opening portion, and an opening member rotating portion rotatably connected to the opening member fixing portion via an opening member hinge portion, and having the opening blade and the locking piece, the cap has a cap fixing portion fixed to the mouth portion, and a cap rotating portion rotatably connected to the cap fixing portion via a cap hinge portion, the cap having the pushing piece and the protruding piece, The container with an opening blade according to claim 1 or 2, wherein the opening member fixing portion and the cap fixing portion are fitted together so that rotation of the opening portion relative to each other in the circumferential direction is restricted.

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