JP2000327009A - Container having lid made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the removal of a lid body in a filling line from being generated by smoothly removing the internal air when the lid body is set, and safely and efficiently perform the filling-assembling process. SOLUTION: This container comprises a container main body 1 and an upside- down deep dish-shape lid body 7, and on the internal surface of an assembling section 12 of the lid body 7 which is detachably fitted on a mouth edge ring 5 formed on the opening section of the container main body 1, a leak protruding piece 16 which forms a gap as a leak passage between the internal surface of the assembling section 12 and the external surface of the mouth edge ring 5, is projected for the constitution, and the releasing of air between the container main body 1 and the lid body 7 is quickly achieved, and the removal of the lid body 7 is prevented from being generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin lid comprising a cup-shaped wide-mouthed container body for storing cheese, yogurt, and the like, and a lid fitted with an external fitting so as to cover the opening of the container body. It is related to a container with a tag.

[0002]

2. Description of the Related Art A cup-shaped container body, which is an injection molded product made of synthetic resin, which is frequently used as a container for storing cheese, yogurt, etc., is filled with contents and immediately opened by welding a seal sheet or the like. A covered dish-shaped lid that covers the opening and protects the seal sheet is fitted over the opening of the container body that is sealed and then sealed with the seal sheet.

[0003] As described above, the lid in this kind of container with a synthetic resin lid merely protects the mechanically weak seal sheet mechanically. However, recently, the lid has been turned down. It is formed in a deep dish shape, and a storage space is formed between the lid and the seal sheet, and a tool such as a spoon or a seasoning such as a sauce is integrally attached to the storage space, and thereby the contents are contained. They can easily eat and drink according to their tastes.

[0004]

However, in the above-mentioned prior art, since the volume of the storage space formed between the lid and the seal sheet is increased, the lid setting processing is performed in the filling line. When the speed is increased in accordance with other processing, air is trapped in the storage space, and the pressure of the trapped air causes a problem that the lid may come off naturally.

Accordingly, the present invention has been made to solve the above-mentioned problems in the prior art, and has as its technical object to allow air in the storage space to escape smoothly when the lid is set. An object of the present invention is to prevent a set lid from being detached in a filling line and to safely and efficiently achieve a filling assembly process.

[0006]

Means for Solving the Problems In the present invention for solving the above technical problems, the means according to the first aspect of the present invention comprises a container body which is a cup-shaped wide-mouthed container, and an outer fitting in an opening of the container body. Consisting of a deep dish-shaped lid that can be attached and detached,
The opening edge of the container body is provided with an edge ring of a wall structure in which the cylindrical piece portion is bent downward from the outer peripheral edge of the outwardly extending ring piece portion and is continuously provided; A mounting ring plate for mounting the assembled portion connected to the peripheral edge of the lower end of the main body on the ring piece portion of the rim ring of the container main body; And a fitting tube piece externally fitted to the tubular piece portion of the rim ring, on the inner peripheral surface of the fitting tubular piece of the assembled portion of the lid, over the tubular piece portion of the lip ring. Protrusions of locking projections that lock from below, and the inner peripheral surface of the assembled part of the lid abuts against the rim ring of the container body, causing leakage between the assembled part and the rim ring. That is, a leak protrusion having a low protrusion height is formed to form a gap as a passage.

[0007] In the filling line, the lid is assembled to the container body in which the contents are hermetically sealed, by fitting the cylindrical portion of the assembled portion of the lid to the cylindrical portion of the rim ring of the container body. Assemble on the ring piece part of the rim ring of the container body,
This is achieved by pushing the mounting ring plate of the assembled portion of the lid until the mounting ring plate is placed.

In a state where the fitting tube piece of the lid is externally fitted to the tube piece portion of the container body, a leak protrusion protruding from the inner peripheral surface (inner surface) of the fitting tube piece is formed on the outer peripheral surface of the tube piece portion. Abutting to form a gap as a leak passage between the fitting tube piece and the tube piece portion, and when the cover is fitted to the container body, the lower surface of the mounting ring plate of the cover ( The leak protrusion protruding from the inner surface abuts on the upper surface of the ring piece of the container body to form a gap as a leak passage between the mounting ring plate and the ring piece.

As described above, from the beginning to the end of the external fitting of the lid to the container body, a gap functioning as a leak passage is continuously formed between the container body and the lid by the leak projection. At the time of setting the lid, air is not pushed into the storage space formed between the container main body and the lid, and the air in this storage space follows the progress of the external fitting of the lid to the container main body, It is pushed out reliably and smoothly and does not increase the pressure in this storage space.

A second aspect of the present invention is the same as the first aspect of the invention, except that a plurality of leak protrusions are provided at equal intervals along the circumferential direction.

According to the second aspect of the present invention, the gap as a leak passage formed between the container body and the lid by the leak projection is formed uniformly along the circumferential direction. Therefore, it is possible to efficiently push out the air in the storage space formed between the container body and the lid.

According to a third aspect of the present invention, in addition to the first aspect of the invention, the leak projection is provided with a vertical ridge-shaped portion provided on the fitting tube piece and a radial projection provided on the mounting ring plate along the radial direction. It is made up of a strip-shaped part.

According to the third aspect of the present invention, since the leak protruding piece has a posture along the direction in which the air in the storage space formed between the container body and the lid is pushed out and flows.
Extrusion of air in the storage space is smoothly achieved without difficulty.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The container with a lid is made of a synthetic resin cup-shaped thin injection-molded product, and a synthetic resin inflated deep dish-shaped removably fitted externally to the opening of the container main body 1. And a lid 7 which is a thin injection molded product.

The container main body 1 has a tapered cylindrical wall 2 whose lower end is closed by a bottom wall and whose diameter is increased upward.
6) A tapered cylindrical mouthpiece 4 whose diameter is increased upward is erected through an outer collar piece 3, and an outer collar ring portion is provided at the upper end of the piece 4. A ring-shaped rim ring 5 having a bent wall structure, in which a short-cylindrical tubular piece portion 5b is vertically provided from the outer peripheral edge of the outer peripheral edge of the seal sheet 6a, is filled. By tightly welding to the upper surface of the lip piece 3, the contents are sealed and stored.

The cover 7 (refer to FIGS. 2 to 5)
A lid main body 8 formed in a deep dish shape in which a short cylindrical peripheral cylinder 10 is vertically suspended from the peripheral edge of a flat top plate 9, and a lower end of the lid main body 8, that is, a peripheral cylinder 10. A short cylindrical fitting tube piece 13 is vertically provided on an outer peripheral end of a mounting ring plate 14 continuously provided in an outer flange shape from a lower end, and the assembling portion 12 formed in a ring shape having a bent wall structure. It is configured.

At a continuous portion between the top plate 9 of the lid body 8 of the lid 7 and the peripheral cylinder 10, a plurality of (eight in the case of the illustrated embodiment) butting pieces 11 functioning as reinforcing ribs are provided in the circumferential direction. Are provided at equal intervals along the same direction.
A plurality of (eight in the case of the illustrated embodiment) short horizontal ridge-shaped locking projections 15 are provided at the lower portion of the inner peripheral surface of the second fitting cylindrical piece 13.
A plurality (eight in the illustrated embodiment) of the inner surface of the assembling portion 12, that is, the portion of the inner peripheral surface of the fitting tube piece 13 and the lower surface of the mounting ring plate 14, avoiding the locking projection 15. Leak protruding pieces 16 having a protruding ridge structure with a low protruding height are provided at equal intervals along the circumferential direction.

The abutting piece 11 functions as a reinforcing rib, and as is apparent from FIG. 6, when the lids 7 are stacked and stacked, they abut against the upper end of the peripheral cylinder 10 of the lower lid 7 to form a lid. It functions so that the bodies 7 do not fit together.

The leak protruding piece 16 is provided with a gap as a leak passage, and is provided with an assembling portion 1 of the edge ring 5 and the lid 7 of the container body 1.
2, the locking projection 15 that locks from below to the cylindrical piece portion 5b to achieve the assembling of the lid 7 to the container body 1 functions to lock to the cylindrical piece portion 5b. The protruding height of the portion to be reduced is reduced by the gap as the leak passage, and the locking force of the locking protruding piece 15 to the cylindrical piece portion 5b may be reduced accordingly.

Therefore, if the required protrusion height of the leak protrusion 16 is determined, the protrusion height of the locking protrusion 15 is set large in advance by the protrusion height of the leak protrusion 16. Is good.

The cup-shaped wide-mouthed container used in the present invention is not limited to a circular container, but can be applied to an oval or square container.

[0022]

Since the present invention has the above-described structure, the following effects can be obtained. According to the first aspect of the present invention, since the leak protruding piece is protruded from the assembling portion of the lid facing the rim ring of the container main body, the container main body is fitted when the lid is fitted to the container main body. A leak passage is reliably formed between the lid and the lid, thereby preventing the lid from being detached in the filling line, and performing the filling and assembling process safely and efficiently.

Further, since the leak protruding piece has a simple configuration in which it protrudes from the inner surface of the assembled portion of the lid, it is possible to easily and easily use the existing mold without deteriorating the appearance of the container. It can be implemented properly.

According to the second aspect of the present invention, since the leak passages can be formed at equal intervals along the circumferential direction, the air vent function can be efficiently exhibited.

According to the third aspect of the present invention, since the posture of the leak projection forming the leak passage is the same as the flowing direction of the escaping air, the escaping and flowing operation of the air is smoothly achieved, and the container The process of assembling the lid to the main body can be sped up.

[Brief description of the drawings]

FIG. 1 is an overall front view of an assembled state showing a first embodiment of the present invention.

FIG. 2 is a front view of the lid of the embodiment shown in FIG.

FIG. 3 is an overall bottom view of the lid in the embodiment shown in FIG. 1;

FIG. 4 is an enlarged longitudinal sectional view of a main part of the lid in the embodiment shown in FIG.

FIG. 5 is an enlarged longitudinal sectional view of a main part of the lid in the embodiment shown in FIG.

FIG. 6 is an enlarged longitudinal sectional view of an essential part showing an assembled state of the container body and the lid and a stacked state of the lids in the embodiment shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1; Container main body 2; Cylindrical wall 3; Muzzle piece 4; Mouth piece 5; Edge ring 5a; Ring piece part 5b; Cylinder piece part 6; Seal sheet 7; Cover 8; Peripheral cylinder 11; abutting piece 12; assembling part 13; fitting cylinder piece 14; mounting ring plate 15; locking projection 16; leak projection

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Tsujimura 3-2-6 Oshima, Koto-ku, Tokyo Inside Yoshino Industrial Co., Ltd. (72) Inventor Masanori Hirata 4-5-1-1, Kashiwacho, Tachikawa-shi, Tokyo Kashiwa, Japan Town complex 13 −302 F term (reference) 3E067 AA04 AA11 AB14 AB21 BA07A BB14A BC07A EA17 EC12 EE39 GB01 3E084 AA02 AA12 AB01 AB06 BA03 BA05 CA01 CC03 DA01 DB13 DC03 FA09 FC01 GA08 GB12 KA01

Claims (3)

[Claims] 1. A container body (1) which is a cup-shaped wide-mouthed container.
And an inwardly protruding deep dish-shaped lid (7) fitted and detached from the opening of the container main body (1), and a ring piece extending outward at the opening edge of the container main body (1). An edge ring with a wall structure in which the cylindrical piece portion (5b) is bent downward from the outer peripheral edge of the portion (5a)
(5) is provided, and the lid body (7) has a protruding deep dish-shaped lid body.
A mounting ring plate (14) for mounting the assembled part (12) connected to the lower end peripheral edge of (8) on the ring piece portion (5a), and an outer peripheral edge of the mounting ring plate (14). The tube part is suspended and installed
(5b) and a fitting tube piece (13) externally fitted to the fitting tube piece.
On the inner peripheral surface of (13), a locking protruding piece (15) is provided to protrude from the lower side while riding over the cylindrical piece portion (5b), and the assembling part (1
The inner peripheral surface of (2) abuts against the rim ring (5) to form a gap as a leak passage between the assembled part (12) and the rim ring (5). Low leak nose (16)
A container with a synthetic resin lid protruding. 2. The container with a synthetic resin lid according to claim 1, wherein a plurality of leak projections (16) are provided at equal intervals along the circumferential direction. 3. A leak ridge (16) comprising: a vertical ridge portion provided on a fitting tube piece (13); and a radial ridge portion provided on a mounting ring plate (14) along a radial direction. Claim 1 or 2 comprising:
A container with a synthetic resin lid according to the above.