JP2000043922A - Wide mouth lid with pull ring - Google Patents

Abstract

(57) [Summary] [Problem] To provide a wide-mouthed lid with a pull ring that is free from the possibility of contents spilling from a container at the time of opening, has good opening suitability, and has a good shape. A sheet lid is previously inserted into an injection molding die, and an upper outer ring 100 and an inner ring 20 below the upper outer ring 100 are inserted.
0 is injection-molded and a wide-mouthed lid integrally formed with the sheet lid 300, and a support column 211 provided with a pull ring 210 having a wide finger pad 212 at an end thereof is provided upright on the upper end surface of the inner peripheral ring. A pair of reversing notches 220 are formed on the inner peripheral edge of the inner peripheral ring at the corresponding predetermined positions on both sides of the column, the outer peripheral edge of the peripheral wall 310 of the seat lid is tapered, and the outer peripheral edge on the pull ring side is tangential. Cut the inside 312 in parallel,
The gate position G of the injection molding die is removed from the final position when the sheet lid is peeled off from the outer peripheral ring and opened, and is provided at a position separated from the sheet lid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to fruit juice beverages, sake,
The present invention relates to a wide-mouthed lid with a pull ring attached to a cup-shaped composite container used for fruits and granular confectionery.

[0002]

2. Description of the Related Art Conventionally, a cup-shaped composite container has been used in a wide field of use of food contents, and a wide-mouthed lid with a pull ring is used in this cup-shaped composite container depending on the purpose of use of the container. Was. The wide-mouth lid with a pull ring is, for example, an outer ring and an inner ring with a pull ring integrally formed by insert injection molding on a sheet lid, and the lower surface of the outer ring is heat-fused to the mouth of the composite container to form a container. The container was sealed, and in use, the container was opened by pulling the pull ring of the inner peripheral ring with a finger to peel off the sheet lid from the outer peripheral ring.

[0003]

However, the above-mentioned conventional wide-mouthed lid with a pull ring has a problem that when the content is a liquid content in particular, when the pull ring is fully opened by pulling a finger with a finger, the mouth of the container is closed. In some cases, the contents were spilled from the container due to the vibration generated by the resistance of peeling the sheet lid from the peripheral ring to be heat-sealed. In addition, there was a case in which the finger contact was poor due to the edge of the pull ring, and the sheet lid was hardly peeled off because the sheet lid was adhered to the outer peripheral ring and the suitability for opening was poor.

The present invention has been made to solve the above-mentioned conventional problems, and provides a wide-mouthed lid with a pull ring that has good opening suitability and good shape without fear of contents spilling out of a container at the time of opening. Things.

[0005]

That is, the first aspect of the present invention is as follows.
According to the invention of FIG. 1, a sheet lid is inserted into a mold in advance, and FIG.
As shown in (a) and (b), the upper peripheral ring (1
00) and an inner peripheral ring (200) therebelow, which is injection-molded and is integrally formed with the seat lid (300), wherein a wide finger is provided at the top end of the inner peripheral ring (200). Pull ring (21) with backing plate (212)
1), a pair of columns (211) is provided upright, and as shown in FIG. 1 (c), a pair of inner peripheral rings (200) at corresponding predetermined positions on both sides of the column (211). 4 (a) and 4 (b), the outer peripheral edge (311) of the peripheral wall (310) of the sheet lid (300) is tapered, as shown in FIGS. 4 (a) and 4 (b). As shown in FIG. 1C, the inside of the outer peripheral edge on the pull ring side is cut (312) in parallel with the tangent line.
It is a wide-mouthed lid (10) with a pull ring shown in (a) and (b).

According to a second aspect of the present invention, the gate position (G) of the injection molding die is opened by peeling the sheet lid from the outer peripheral ring as shown in FIG. 1 (c). 3. The wide-mouthed lid with a pull ring according to the first invention, wherein the wide-mouthed lid is provided at a position separated from the sheet lid (300) as shown in FIG.

[0007]

In the wide-mouthed lid with a pull ring according to the present invention, a notch for inversion is formed at an inner peripheral edge of the inner peripheral ring at a predetermined position on both sides of the column of the pull ring. When the container is opened by peeling off the sheet lid from the outer peripheral ring to be heat-sealed, the sheet lid to be peeled is turned upside down during the opening, so that the opening is stopped once and then the opening is continued. As a result, the vibration generated by the resistance of peeling the sheet lid is reduced, and the contents do not spill out of the container at the time of opening.

Further, since a wide finger-contacting plate is formed on the pull ring, it is easy to pull the finger firmly on the pull ring, and the outer peripheral edge of the pull ring side of the sheet lid is cut inside in parallel to the tangent line. Therefore, the adhesive area of the sheet lid adhered to the outer peripheral ring of the opening start portion is small and easy to peel off, and does not require a strong opening force at the start of opening,
Moreover, since the outer peripheral edge of the sheet lid is adhered in a tapered shape to the outer peripheral ring which is thermally fused to the mouth of the container, the sheet lid is easily peeled off, and the opening suitability is good.

Then, the gate position of the injection molding die is
Since the sheet lid is removed from the final position when the sheet lid is peeled off from the outer peripheral ring and opened, and provided at a position away from the sheet lid, the sheet is heated and heated by the molten resin injected from the gate during manufacture. The lid has a good shape with a pull ring without the lid being damaged.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
1), as shown in FIG. 1 (b), is attached by heat sealing to the mouth of the cup-shaped composite container (20) by an ultrasonic sealing method or the like, and the sheet lid (300) is injected in advance. The outer peripheral ring (100) inserted into the molding die and
And an inner peripheral ring (200) therebelow is injection-molded with a thermoplastic resin such as polyethylene or polypropylene, and is integrally formed with the seat lid.

The above-mentioned inner ring (200) is shown in FIG.
As shown in (a) to (c), a column (211) provided with a pull ring (210) having a wide finger pad (212) at the end is erected on the upper end surface, and a support on both sides of the column is provided. A pair of reversing notches (22
0). This inner ring (200)
As shown in FIG. 2, the sheet lid that is peeled off at the time of opening is turned upside down during opening by a pair of notches (220) provided at the inner peripheral edge of the sheet.

The seat cover (300) is shown in FIG.
As shown in FIG. 1, the outer peripheral edge (311) of the peripheral wall (310) is tapered, and as shown in FIGS. 1 (a) and 4 (c), the outer peripheral edge (311) on the pull ring side is tangential. The inside is cut (312) in parallel with.

The above-mentioned sheet lid (300) is, for example, shown in FIG.
As shown in (a) and (c), it is composed of a peripheral wall (310) and a top plate (320), and the top plate usually has a concave portion formed upward for absorbing the reduced pressure of the container. In this concave portion, a reinforcing concave portion (321) may be formed as necessary. Further, the sheet lid is formed by forming the sheet by a vacuum forming method, a pressure forming method, or the like, and the sheet may be a single layer or a multilayer, but usually, a multilayer sheet having a barrier property is used. The configuration of this multilayer sheet is, for example, a polyethylene / polyvinylidene chloride / polyethylene configuration having a barrier layer in an intermediate layer, a polyethylene / ethylene-vinyl alcohol copolymer / polyethylene configuration, a polypropylene / polyvinylidene chloride / polypropylene configuration, a polypropylene / ethylene configuration. -Vinyl alcohol copolymer / polypropylene constitution, polypropylene / nylon / polyvinylidene chloride / polypropylene constitution, polypropylene / nylon / ethylene-vinyl alcohol copolymer / polypropylene constitution and the like. The material of the surface of the sheet lid that adheres to the outer ring and the inner ring is a material that is thermally fused when the outer ring and the inner ring are injection-molded.

As shown in FIG. 1C, the gate position (G) of the injection mold is removed from the final position when the sheet lid is peeled off from the outer peripheral ring and opened. As shown in (2), it is provided at a position separated from the sheet lid (300).

[0015]

The container equipped with the wide-mouthed lid with the pull ring according to the present invention is turned off once during opening when the container is opened by pulling the pull ring with a finger to peel off the sheet lid. In addition, the vibration generated by the resistance of peeling the sheet lid is relieved, and the contents do not spill out of the container at the time of opening.

Further, in the wide-mouthed lid with a pull ring of the present invention, the finger plate of the pull ring is wide, the pull ring is firmly touched with a finger to be easily pulled, and the outer peripheral edge of the pull ring side of the sheet lid is cut. At the start of opening, the sheet lid is easily peeled off and opened, and since the outer peripheral edge of the sheet lid is tapered and adhered to the outer peripheral ring, the sheet lid is easily peeled off from the outer peripheral ring, and the opening suitability is good. is there.

In addition, the gate position of the injection molding die is provided at a position separated from the final position where the sheet lid is peeled off and away from the sheet lid, so that the sheet lid is not damaged during manufacturing. This is a lid with a good pull ring shape.

[Brief description of the drawings]

FIG. 1A is a plan view of a wide-mouthed lid with a pull ring according to an embodiment of the present invention, and FIG. 1B is a diagram illustrating a structure when the wide-mouthed mouth with a pull ring is attached to the mouth of a composite container. It is a figure and (c) is a bottom view of an outer ring and an inner ring.

FIG. 2 is an explanatory diagram showing a state in which an inner peripheral ring is inverted.

FIG. 3 is an explanatory diagram showing a gate position.

4A is a cross-sectional view of a seat lid according to one embodiment, FIG. 4B is an enlarged cross-sectional view of a portion A, and FIG.
It is a bottom view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Wide-mouth lid with a pull ring 20 ... Composite container 100 ... Outer ring 101 ... Thermal fusion protrusion 200 ... Inner ring 210 ... Pull ring 211 ... Column 212 ... Finger plate 220 ... Notch 230 ... … Reinforcing ring 300… Seat lid 310… Peripheral wall 311… Outer peripheral edge 312… Cut 320… Top plate 321… Reinforced concave

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E084 AA12 AB01 AB02 AB07 BA02 CB02 CC03 CC04 CC05 CC08 EA03 EB03 EB04 EC03 EC04 EC05 EC09 FA09 FD13 GB08 GB12 GB17 HA03 HB01 HC03 HC08 HD01

Claims (2)

[Claims] 1. A wide-mouth lid wherein a sheet lid is previously inserted into an injection mold, and an upper outer ring and an inner ring below are injection-molded and integrally formed with the sheet lid. At the upper end surface of the inner ring, a column having a pull ring having a wide finger pad at its tip is erected, and a pair of notches for inversion are provided at the inner peripheral edge of the inner ring at corresponding predetermined positions on both sides of the column. Wherein the outer peripheral edge of the peripheral wall of the sheet lid is tapered, and the outer peripheral edge of the pull ring side is cut inward parallel to a tangent line. 2. The method according to claim 2, wherein a gate position of the injection mold is removed from a final position when the sheet lid is peeled off from the outer peripheral ring and opened, and is provided at a position separated from the sheet lid. The wide-mouthed lid with a pull ring according to claim 1, characterized in that: