JPH0624355Y2 - Container lid - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a container lid, and more specifically, to obtain a lid for a cup container for drinks such as coffee and juice which is easy to manufacture and convenient to use. There is.

<Conventional Technology and Problems to be Solved by the Invention> Conventionally, for example, in a shop or a take-out shop, as a container for storing coffee, soda, juice or the like, paper or foam is used because of its easy handling. Resin cup containers are widespread.

However, many of these cup containers are provided in an open state without a lid, and the contents can easily be spilled due to a slight shake when carrying, vibration, etc. There is a problem that dust easily enters and the hygiene is not good.

For this reason, conventionally, for example, a lid in which a hole for inserting a straw is formed is partially provided on a container and provided. However, in such a container, it is possible to drink only with a straw, and in the case of directly drinking without using a straw, it is necessary to remove the entire lid after all. In drinking, it cannot be said that the above problems have been solved.

In view of the above problems, it is possible to drink while it is still fitted in the container, and even when drinking, for example, preventing spilling of contents due to shaking, vibration, etc. without soiling hands or clothes,
And as a hygienic good container, for example, Shoukaisho 63-11
Although it has been proposed to form a thin wall portion that can be easily opened as in 1450 (Japanese Patent Application No. 62-3680), there is a problem that the thin wall portion cannot be smoothly opened.

Therefore, an object of the present invention is to solve the above problems and provide a container lid with an easy and reliable opening.

<Means for Solving the Problems> A container lid of the present invention for achieving the above object is a container lid having a fitting portion corresponding to an opening edge of an upper end portion of a container body on an outer peripheral portion. , A polystyrene resin extruded sheet containing a rubber component, and the extruded sheet is formed by stretching 1.3 to 2.0 times in the flow direction at the time of extrusion. A knob piece for opening is extended along a part of the outer peripheral part of the container lid along with, and a cut is formed at the base of this knob piece or in the vicinity of the base, and in the center of the lid in correspondence with the ripple direction of the cut. It is characterized in that a half-cut line for opening is formed in a predetermined area to which it goes.

<Operation> According to the container lid having the above-described configuration, the container lid is used by being fitted to the opening edge of the upper end portion of the container body, and the container lid is formed of a polystyrene resin extruded sheet containing a rubber component, and the extruded sheet is extruded. This is because it is formed by stretching 1.3 to 2.0 times in the flow direction of time, and the knob piece for opening at a part of the outer peripheral portion is extended along the stretching direction. When gripping and breaking the opening from the cut toward the center of the lid for opening, the opening from the half-cut line corresponding to the cut extending direction can be formed very reasonably along the extending direction.

<Embodiment> Next, an embodiment of the present invention will be described below with reference to the drawings.

Reference numeral (10) shows a substantially disc-shaped container lid formed entirely of a synthetic resin extruded sheet, for example, polystyrene resin containing rubber, and (20) shows a cup-shaped container body.

The extruded sheet forming the container lid (10) is formed by stretching 1.3 to 2.0 times in the right direction (A) in the flow direction during extrusion. (11) is a fitting portion of the container lid (10) corresponding to the opening edge (21) of the upper end portion of the container body (20) (see FIG. 4) and has a groove shape. (12) is a container lid along the above extending direction
A knob piece for opening, which is provided in a part of the outer peripheral part of (10), (1
3) (13) is a cut formed in the base of the knob piece (12) or in the vicinity of the base, and (14) is a predetermined area toward the lid central part (15) corresponding to the spreading direction of the cut (13) (13). The half-cut line (14) is formed as a half-cut line (14) by heating and pressing it with a hot blade into the illustrated shape capable of forming an opening.

Reference numeral (16) is a convex portion bulgingly formed in the central portion (15) of the lid, and a vapor vent hole (17) is formed on the upper surface. Reference numeral (18) indicates a bulging reinforcement bulge portion. Reference numeral (19) indicates a reinforced bulging line portion surrounding the half-cut line (14).

Furthermore, in the production of the container lid (10) according to the present invention, the extruded sheet that is a raw material is preferably 8.6% by weight of butadiene as a rubber component, 2.2% by weight of titanium oxide as a white pigment, and 89.2% by weight of styrene resin. %, And when extruded, a sheet formed by applying a 1.3 to 2.0-fold stretch along the sheet flow direction (A) is used to form a sheet. In terms of molding, the container lid (10) has a fitting part (11) corresponding to the upper opening edge (21) of the container body (20).
And a shape having at least an opening knob piece (12) extending along the stretching direction (A) in a part of the outer peripheral portion.

And in the step of molding or after molding, cuts (13) and (13) near the base of the knob piece (12) or near the base, and the center of the lid (corresponding to the spreading direction of the cuts (13) and (13) ( A half cut line (14) for opening of a predetermined area toward 15) is formed. Cut line (13) (13) is with a cutter, half cut line (14) is 13
It is formed by pressing with a hot blade of 0 to 140 ° C.

The container lid (10) manufactured as described above has the fitting portion (11),
It is used by fitting it on the opening edge (21) of the upper end of the container body (20) (see Fig. 4), and grips the knob piece (12) to open it for the straw (S) and the like. When it is pulled, it will be pulled up along the stretching direction, and the tear will spread from the cuts (13) (13) and the half cut line (14) will be completely broken and open. You may drink directly from this opening (H), or you may insert a straw and drink.

<Advantages of the Invention> According to the above invention, since the synthetic resin extruded sheet forming the container lid contains a rubber component, cracks may occur during molding, or breakage from cuts may be unnecessary. It is possible to prevent spillover from occurring and also because the extruded sheet is stretched by 1.3 to 2.0 times in the flow direction, the tear due to the opening extends from the cut to the half-cut line. It will surely continue, and opening will be extremely easy.

Therefore, the opening required for drinking can be performed with the container main body being covered, and the container can be drunk from the opening.

Also in terms of manufacturing, stretching to an extruded sheet for forming a container lid,
By forming the extruded sheet itself containing a rubber component, it is possible to provide a container lid having a feature that it is very easy to form an opening.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a container lid of the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line III-III in the previous figure, and FIG. FIG. (10) …… Container lid, (11) …… Fitting part, (12) …… Knob piece,
(13) (13) …… Incision, (14) …… Half cut line, (15)…
… Center of lid, (20) …… Container body, (21) …… Opening edge, (A)
…… Stretching direction.

Claims (1)

[Scope of utility model registration request] 1. A container lid having an outer peripheral portion provided with a fitting portion corresponding to an opening edge of an upper end portion of a container body, the container lid being formed of a polystyrene resin extruded sheet containing a rubber component, the extruded sheet being extruded. It is formed by being stretched by 1.3 to 2.0 times in the flow direction of time, and further, a knob piece for opening is provided in a part of the outer peripheral portion of the container lid along the stretching direction. , A cut is formed in the base of the knob piece or in the vicinity of the base, and a half cut line for opening is formed in a predetermined region toward the center of the lid in correspondence with the spread direction of the cut. Container lid.