JP6478460B2 - Beverage paper container - Google Patents

Description

  The present invention relates to beverage paper containers.

  DESCRIPTION OF RELATED ART The drink paper container which sealed the drink opening opened in the top part by the tab member is known. The spout is opened by peeling the tab member from the top.

  Patent document 1 discloses what formed the cut-and-raised in the tab member in order to make it easy to pinch a tab member when peeling off a tab member.

Japanese Utility Model Application Publication No. 4-106224

  However, since the tab member for sealing the spout is relatively small (the area is small), it is difficult to form a large cut and rise in the tab member. Also, since the tab members are generally made of thin sheets, it is difficult to form a firm, stable cut-and-raise in the tab members.

  An object of the present invention is to make the tab member easier to grip, thereby improving the openability when the tab member is peeled off.

  The beverage paper container according to the present invention comprises a cylindrical body, a top for closing the upper end of the body, and a bottom for closing the lower end of the body, and the above-mentioned spout is opened, The mouth is closed by a tab member bonded to the entire periphery of the mouth on the outer surface of the top, and a convex projection is formed on the outer surface of the top away from the mouth. And the tab member is provided with an unadhered knob extending toward the projection, and at least a part of the unadhered knob rides on the projection. . The tab member may be heat-welded to the outer surface of the top with a thermoplastic resin, or may be adhered to the outer surface of the top using an adhesive.

  A spout is opened in the top portion of the beverage paper container, and a convex projection is formed on the outer surface of the top portion apart from the spout. An unadhered knob provided on the tab member for closing the spout extends toward the convex projection, and at least a portion of the knob is mounted on the convex projection. The unbonded knobs that ride on the convex projections rise outward along the convex projections or form a gap between them and the top, so it is easy to put a nail or a finger on the knob and it is easy to turn over . The flipped knob can then be easily pinched with a finger, thus facilitating the opening operation (peeling off of the tab member). Since the convex projections are formed on the top of the beverage paper container, relatively large, firm projections can be formed. Moreover, since a convex-shaped projection part can be formed in the formation process of a drink paper container, processability is also good. The convex projections can be formed into an arbitrary shape such as a rectangle or a circle when viewed from a plane. Also, a plurality of convex projections may be formed on the top.

  The dimension of the convex projection in the direction corresponding to the width of the knob (tab member) may be shorter or longer than the width of the knob. When the dimension of the convex projection in the direction corresponding to the width of the knob is shorter than the width of the knob, the gap between the unbonded knob protruding from the convex and the top of the beverage paper container is Since a gap is secured, it is easy to put a nail or a finger on the knob from the gap.

  In one embodiment, at least a part of the unadhered knob is curved along a convex projection formed on the top of the beverage container. The entire non-adhered knob may be curved along the convex projection, or a part of the non-adhered knob may be curved along the convex projection. When a part of the non-adhered knob is curved along the convex protrusion, a part of the non-adhered knob is curved along the convex protrusion halfway to the convex protrusion; The tip end portion of the knob portion may be extended as it is (without being bent) with a gap between the top portion and the convex projection portion, and a part of the unbonded knob portion is the convex projection portion The tip portion of the knob portion may be extended as it is (without being curved) with a gap between the tip portion and the top portion. The nail or the finger tip can be easily put in the gap between the tip of the knob and the outer surface of the top.

  Preferably, the drinking spout is closed by a film bonded to the entire periphery of the drinking spout on the inner surface of the top portion, and the film and the tab member are bonded through the spout. By sealing the spout from the inner surface of the upper portion with the film, the spout can be reliably sealed. Since the film and the tab member are adhered through the spout, the film can be broken when the tab member is pulled off, whereby the spout is opened.

  In one embodiment, the spout is tapered, and the protrusion is formed on an extension of the tapered spout. The tab member is pulled off by pinching the tab on the convex projection with a finger and pulling it in the direction of the outlet, so when opening the outlet, the outlet is from a small diameter (tapered) part It is opened towards the large diameter part. The tab member can be peeled off smoothly.

  Preferably, a bonding range for bonding the tab member to the outer surface of the top portion is tapered toward the projection. It is possible to start peeling off the tab member with light force.

  A crease may be formed in the unbonded area of the tab member. Curvature that may occur when heat is applied to the tab member can be suppressed.

It is a top view of a beverage paper container. FIG. 2 is an end view of the beverage paper container along the line II-II in FIG. 1; FIG. 3 is a cross-sectional view of the beverage container according to the line III-III of FIG. 2; It is a top view of the drink paper container of a modification. It is a partially expanded end view of the top part of the drink paper container of another modification. It is a partially expanded end view of the top part of the drink paper container of another modification. It is a partially expanded end elevation of the top part of the drink paper container of the other modification. It is a top view of the drink paper container of the further another modification. It is a top view of the drink paper container of the further another modification. FIG. 10 is a partially enlarged end view of the top portion of the beverage paper container shown in FIG. 9; It is a top view of the drink paper container of the further another modification.

  FIG. 1 shows a plan view of the beverage paper container 1A, and FIG. 2 shows an end view of the beverage paper container 1A along the line II-II in FIG. FIG. 3 shows a cross-sectional view of the beverage paper container 1A along the line III-III in FIG. The thickness is shown somewhat exaggerated in FIG. 2 and other figures for the sake of clarity.

  The beverage paper container 1A comprises a cylindrical body 11, a top 12 closing the upper end of the body 11, and a bottom 13 closing the lower end of the body 11. The body 11, the top 12, and the bottom 13 are mainly made of paper, and polyethylene (PE) is laminated on the inner surface, and have watertightness. Polyethylene (PE), aluminum (AL) or the like may be laminated on the outer surface. For example, a laminated structure in which polyethylene, paper, polyethylene, aluminum and polyethylene are laminated in this order from the inner surface to the outer surface is used.

  The top 12 that closes the upper end of the body 11 is circular, and its peripheral edge 12A is bent outward. The upper end portion 11A of the body portion 11 is folded back so as to sandwich the peripheral portion 12A of the top portion 12 bent outward. The peripheral portion 12A of the top portion 12 and the upper end portion 11A of the body portion 11 sandwiching the peripheral portion 12A are bonded (bonded, welded) to each other on the entire surface.

  Bottom portion 13 which closes the lower end of body 11 is also circular, and peripheral edge 13A is bent outward, and lower end 11B of body 11 is folded back so as to sandwich peripheral edge 13A bent outward. ing. The peripheral edge portion 13A of the bottom portion 13 and the lower end portion 11B of the body portion 11 which sandwiches the peripheral edge portion 13A are also bonded (bonded, welded) to each other on the entire surface.

  In the upper part 12, a mouth (slaw insertion opening) 14 is opened. The spout 14 is tapered in a teardrop shape, that is, toward the center of the top 12 as viewed from above.

  Further, on the outer surface (surface) of the top portion 12, an embossed portion (convex protrusion) 15 having an arc-shaped curved surface is formed apart from the above-mentioned drinking spout 14. The embossed portion 15 is formed to be slightly elongated in a direction substantially orthogonal to the direction of the tapered spout 14 on an extension line (tapered direction) of the tapered spout 14. The length in the longitudinal direction of the embossed portion 15 is slightly shorter than the width (the length in the direction perpendicular to the longitudinal direction of the tab member 21) of the tab member 21 (the knob 21A) described next.

  A rectangular tab member 21 having a size covering the spout 14 is adhered to the outer surface of the top portion 12 so as to cover the spout 14 and the spout 14 is closed by the tab member 21 . The tab member 21 is made of paper as a base material and polyethylene (PE) is laminated on the inner surface thereof. The bonding range 31A of the tab member 21 is shown in FIG. 1 by an alternate long and short dash line, and in FIG. 2 by a thick solid line. The tab member 21 is adhered to the outer surface of the top 12 by heat welding using a thermoplastic resin. An adhesive may be provided in the adhesion range 31 A, and the tab member 21 may be adhered to the outer surface of the top 12 by an adhesive.

  An adhesion area 31 A for adhering the tab member 21 is provided on the outer surface of the top 12 so as to surround the entire periphery of the mouth 14 and to be tapered toward the emboss portion 15 from the mouth 14 It does not reach the embossed part 15 formed apart.

  The tab member 21 bonded to the outer surface of the top portion 12 extends toward the emboss portion 15, and rides on (overs) the emboss portion 15. As described above, since the bonding range 31 A has not reached the embossed portion 15, the tip end portion of the tab member 21 extending toward the embossed portion 15 is also on the outer surface of the top portion 12 and also on the surface of the embossed portion 15 Not glued. Hereinafter, the non-adhered tip portion of the tab member 21 will be referred to as "picking portion 21A".

  Referring to FIGS. 2 and 3, a substantially rectangular film 16 having a size covering the outlet 14 is adhered to the inner surface (rear surface) of the upper portion 12 so as to cover the outlet 14. Is also blocked by the film 16. The film 16 is thin and watertight. The adhesion range 31C of the film 16 is shown by a dashed dotted line in FIG. 3 and by a thick solid line in FIG. The film 16 is also adhered to the inner surface of the top 12 by heat welding a thermoplastic resin or by an adhesive.

  Further, referring to FIGS. 1 and 2, the tab member 21 for covering the spout 14 and the film 16 for covering the spout 14 are adhered to each other through the spout 14. The adhesion range 31B of the tab member 21 and the film 16 through the spout 14 is shown by a dashed dotted line in FIG. 1 and by a thick solid line in FIG. The tab member 21 and the film 16 are also adhered to each other by heat welding thermoplastic resin or by an adhesive.

  The embossed portion 15 is formed so as to protrude outward by pressing the pressing die after the tab member 21 is bonded to the outer surface of the top portion 12 so that the inside of the top portion 12 can be seen. Generally, when pressing the pressing mold, a female mold for receiving the pressing mold is provided on the outside of the top portion 12. Thus, not only the embossed portion 15 but also the non-adhered knob portion 21A of the tab member 21 protrudes outward along the embossed portion 15 and is curved. In the forming process of the beverage paper container 1A, it is possible to form the curving of the knob portion 21A along the embossed portion 15 and the embossed portion 15 at once. By curving the knob portion 21A along the embossed portion 15, the knob portion 21A is unlikely to be in the way.

  As described above, the length in the longitudinal direction of the embossed portion 15 is shorter than the width of the tab member 21 (picked portion 21A), and therefore, at both end portions of the embossed portion 15, the unadhered knobd portion 21A of the tab member 21 and There is a gap with Tenbe12. A nail or a finger can be put on the knob 21A (the edge thereof) of the tab member 21 utilizing this gap, and the knob 21A can be easily flipped over. The tab member 21 is peeled off from the top 12 by holding the flipped knob 21A with a finger and pulling it in the direction of the spout 14. As described above, since the tab member 21 and the film 16 are adhered to each other through the spout 14, the film 16 covering the spout 14 is broken while the tab member 21 is being peeled off. 14 opens. Generally, a straw (not shown) is inserted into the paper container 1A from the spout 14 opened. Since the bonding area 31A for bonding the tab member 21 to the outer surface of the top portion 12 is narrowed toward the embossed portion 15, peeling of the tab member 21 can be started with a light force.

  Since the non-adhered knob 21A of the tab member 21 protrudes outward along the protrusion of the embossed portion 15, it is easy to flip with a nail or a finger. Even if the length in the longitudinal direction of the embossed part 15A is formed longer than the width of the tab member 21 (pick part 21A) as in the beverage paper container 1B of the modified example shown in FIG. Ease of turning and pinching of the part 21A is ensured.

  FIG. 5 shows a modification. The unadhered knob 21A of the tab member 21 is curved along the embossed section 15 to about half of the embossed section 15 (near the apex), but the tip 21B of the knob 21A extending further from there is the embossed section 15 It is not along, and it extends almost diagonally upward slightly. Since a wide gap is secured between the tip portion 21B of the knob 21A and the embossed part 15 or the top 12, the knob 21A can be easily flipped over and pinched with a finger.

  FIG. 6 shows another modification, in which the unadhered knob portion 21A of the tab member 21 is long and has a tip 21B extending further beyond the embossed portion 15. As shown in FIG. The tip portion 21B of the knob portion 21A extending beyond the embossed portion 15 extends substantially linearly and slightly obliquely upward. Also in this modification, the knob portion 21A is easy to turn over and easy to grip with a finger.

  FIG. 7 shows still another modification, in which the unadhered knob 21A of the tab member 21 is folded back. The tip of the folded back portion of the knob 21A is in contact with the emboss part 15 (this contact mode is also considered as the aspect in which the knob 21A rides on the emboss part 15). Of course, at least a part of the folded back portion may be completely run over the embossed portion 15. The length of the folded portion can be arbitrary. Also in this modified example, the knob 21A is easy to turn over and easy to grip with a finger.

  FIG. 8 shows a beverage paper container 1C of still another modification. The beverage paper container 1A shown in FIG. 1 is different from the beverage paper container 1A in that the embossed portion 15B is circular when viewed from the top. Thus, the embossed portion 15B may be formed in a relatively small (narrow) range. Also in this modification, since the unadhered knob 21A of the tab member 21 is curved outward and a gap is secured between the knob 21A and the top 12, it is easy to apply a nail or a finger, and the knob Easy to pinch 21A. A plurality of circular embossed portions 15B may be formed spaced apart from one another.

  FIG. 9 shows a beverage paper container 1D of still another modification. FIG. 10 is a partially enlarged end view of the top portion of the beverage paper container shown in FIG. The beverage paper container 1A shown in FIG. 1 is different from the beverage paper container 1A in that a linear crease (concave portion) 41 is formed in the width direction of the tab member 21. The creases 41 are formed in the non-bonded area (between the bonded area 31 A and the embossed portion 15) of the tab member 21.

  As described above, the tab member 21 is made of paper as a base material and polyethylene (PE) is laminated on the inner surface thereof. Since polyethylene shrinks slightly when heat is applied, when heat welding the tab member 21 to the outer surface of the top 12, the tab member 21 (unbonded area) tends to curve (curl) toward the inner wall . By forming the creases 41 on the tab member 21 as shown in FIGS. 9 and 10, the curvature of the tab member 21 can be suppressed.

  As shown in FIG. 11, a V-shaped crease 41a may be formed on the tab member 21 so as to follow the tapered tip shape of the bonding range 31A.

1A, 1B, 1C, 1D Beverage Paper Container
12 Tenbe
13 bottom
14 Mouth
15, 15A, 15B Embossed part (convex protrusion)
21 Tab member
21A knob
The tip of the 21B knob
31A, 31B, 31C Bonding range
41 and 41a

Claims (7)

A tubular body, a top portion closing the upper end of the barrel portion, and a bottom portion closing the lower end of the barrel portion, and a spout is opened in the top portion, and the spout is the outer surface of the top portion In a beverage paper container closed by a tab member adhered to the entire periphery of the spout at
A convex projection is formed on the outer surface of the upper part away from the spout,
The bonding range for bonding the tab member to the outer surface of the top portion is tapered toward the convex protrusion, and the tapered tip of the bonding range is located near the front of the convex protrusion,
The tab member is provided with an unadhered knob extending toward the convex projection, and at least a portion of the unadhered knob rides on the convex projection to head toward the top of the convex projection In the shape of a cross-section arc along the convex portion so as to rise upward and to descend from the top portion to the other side beyond the top portion of the convex portion ,
Beverage paper container. The dimension of the convex projection in the direction corresponding to the width of the knob is shorter than the width of the knob,
A beverage paper container according to claim 1. The dimension of the convex projection in the direction corresponding to the width of the knob is longer than the width of the knob,
A beverage paper container according to claim 1.   The above-mentioned mouth is closed by the film adhered to the whole circumference of the above-mentioned mouth in the inside of the above-mentioned top part, and the above-mentioned film and the above-mentioned tab member are pasted up through the above-mentioned mouth. A beverage paper container according to any one of 3.   The beverage paper container according to any one of claims 1 to 4, wherein the spout is formed to be tapered, and the convex projection is formed on an extension of the tapered spout.   The beverage paper container according to any one of claims 1 to 5, wherein the convex protrusion has a longitudinal direction in a direction orthogonal to the direction of the tapered bonding area.   The beverage paper container according to any one of claims 1 to 6, wherein a crease is formed in the unbonded area of the tab member.

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