JPH0333664Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a cooking container that is suitable for shrink packaging and whose lid plate can be easily removed after heating in a microwave oven or the like.

More specifically, during Shrink packaging, the handle can be easily folded toward the lid plate side, allowing for smooth Shrink packaging, and the bent handle can return to its original approximately horizontal state during cooking. This invention relates to a heating cooking container whose lid plate can be easily removed.

(Prior Art) Conventionally, in food storage containers consisting of a lid plate and a container body, a handle of a predetermined shape is provided at a predetermined position on the edge of the lid plate for the purpose of facilitating removal of the lid plate. Forming a section is being carried out.

However, when shrink-wrapping these containers, the handles do not easily bend toward the lid plate and remain as protrusions, making it difficult to perform shrink-wrapping smoothly. It was unsuitable for shrink packaging because the shrink packaging material was easily damaged from the surrounding area.

Therefore, when offering the product on the market, a separate outer box is required to house these containers, which also causes high costs.

Furthermore, once the handle is bent when shrink-wrapping these containers, it is difficult for the handle to return to its original horizontal state even after opening the shrink-wrap. The part could not function as a handle.

(Means for solving the problem) The inventors of the present invention, in view of the above-mentioned current situation, are able to smoothly perform shrink packaging, and after opening the shrink wrap, the handle returns to its original approximately horizontal state. As a result of extensive research, making numerous prototype containers, and repeating various experiments, we have come to the knowledge described below.

That is, in a container consisting of a container body and a lid plate, a hanging part is formed at the peripheral edge of the lid plate, and a handle part is attached to the end of the hanging part, and the length a of the handle part is the starting end of the handle part. The thickness of the starting end of the handle should be 100 to 300μ so that it is at least 0.3 times the length b, and about the same as or less than the width c of the drooping part.
By forming it so that the handle part is easily bent toward the lid plate side during shrink packaging, shrink packaging can be carried out smoothly.

Furthermore, after opening the Shrink package, if it is subjected to heat treatment such as heating in a microwave oven, the starting end of the bent handle will soften due to heating, and as a result, it will return to its original approximately horizontal state, making it easier to hold. The present invention was completed after discovering that the lid can be opened easily after cooking.

Hereinafter, embodiments of the present invention will be described based on the drawings.

A in the figure is a container body that accommodates various food materials for cooking, and its shape is square,
It may be round, bowl-shaped, etc., and there are no restrictions on the size.

The container body A is made of synthetic resins such as polypropylene, polyethylene, polycarbonate, polymethylpentene, polyethylene terephthalate, and other heat-resistant materials.

A flange piece 1 is provided around the mouth edge of the container body A.

B in the figure is a lid plate, and a recessed groove 2 that fits into the mouth edge of the container body A is provided on the lower surface of the peripheral edge of the lid plate B, and a hanging portion 3 is formed on the outer side wall of the recessed groove 2. is formed.

Then, the upper bottom surface 4 of the groove 2 and the flange piece 1 of the container body A
It forms a top-bottom surface connection with the top surface part 5, and the inner inner side surface 6 of the groove and the upper end 7 of the inner side surface of the container body, and the outer inner side surface 8 of the groove and the edge part 9 of the collar piece are connected side-to-side, respectively. has been done.

In addition, the outer inner surface 8 of the groove is provided with engaging portions 10 that are hooked onto the flange end 9 at equal intervals, and by adopting the above configuration, the lid plate B and the container body A are closely fitted. has been done.

In addition, reference numeral 11 in the figure is a small hole provided approximately in the center of the lid plate B, which serves as a steam escape hole when various foods stored in the container body A are heated in a microwave oven or the like. act.

Next, reference numeral 12 in the figure is a handle portion formed in series with the lower end of the hanging portion 3 near the corner of the cover plate B.

In the present invention, when forming the handle part, the length a of the handle part is 0.3 of the length b of the starting end 13 of the handle part.
In addition, it is specified that the thickness of the starting end portion 13 of the handle portion is 100 to 300 μm so that the width is the same as or less than the width c of the three hanging portions.

By adopting the above structure, the handle part 12 is easily bent toward the hanging part 3 side during Shrink packaging, and comes into close contact with the outer side surface of the hanging part, and the end of the handle part 12 is bent into the groove 2 as shown in FIG. Since it does not protrude upward, shrink packaging can be carried out smoothly, and there is no risk that the shrink packaging will be damaged during storage or distribution.

Furthermore, if the container according to the present invention is heated in a microwave oven or the like after opening the shrink package at the consumer's stage of use, the bent handle portion 12
The starting end 13 (bent part) of the handle 12 is heated and softened and returns to its original horizontal state in a short period of time.
acts effectively as a handle.

In the present invention, heat-resistant synthetic resins such as polypropylene, polyethylene, polycarbonate, polymethylpentene, and polyethylene terephthalate can be used as the material for the handle portion 12 or the lid plate B, but as a guideline, teeth,
Under the conditions stipulated in this invention regarding the above-mentioned handle part,
It is preferable to use a material that has a maximum load of 200 g or less, preferably 120 g or less when bent 90 degrees from the horizontal state.

In addition, in the present invention, although the method of molding the lid plate or the method of forming the handle portion is arbitrary, the lid plate and the handle portion are integrally molded by a vacuum forming method, and a male mold is used as the mold for molding. In this case, the handle part can be more easily bent toward the hanging part side during Shrink packaging, the mechanical strength of the lid plate itself can be maintained, and the thickness of the starting end of the handle part can be easily set within the specified range. It is advantageous in this respect.

The shape of the handle of the present invention may be any shape such as a fingertip shape or a U-shape, and as for the position where the handle part 12 is formed, it is preferable to form it at the corner of the cover plate B as shown in the drawing. This is preferable because restoration to the original position by heating occurs more reliably and easily.

(Effects of the present invention) In the container according to the present invention, the handle part can be easily folded and closed to the lid plate side during shrink packaging, and the shrink packaging can be carried out smoothly. The bent handle returns to its original horizontal state, and the lid plate can be easily removed when eating after cooking.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of a container according to the present invention, FIG. 2 is a plan view of a container according to the present invention, and FIG.
FIG. 4 is a partially cutaway sectional view taken along a line, and FIG. 4 is a partially cutaway sectional view showing a state in which the container according to the present invention is shrink wrapped. A... Container body, B... Lid plate, 1... Flange piece, 2... Concave groove, 3... Hanging part, 4... Upper bottom surface, 5... Flange piece upper surface part,
6... Inward inner surface of the groove, 7... Upper end of the inner side surface of the container main body, 8... Outer inner surface of the groove, 9... End of the flange, 10...
Engagement part, 11... Small hole, 12... Handle part, 13... Start end part, 14... Shrink film.

Claims (1)

[Scope of utility model registration request] In a container consisting of a container body and a lid plate, a hanging part is formed at the peripheral edge of the lid plate, and a handle part is formed at the end of the hanging part, and the length a of the handle part is equal to the length b of the starting end of the handle part. 0.3 times or more, and approximately equal to or less than the width c of the drooping part, and furthermore, the thickness of the starting end of the handle part is 100 to 300μ. Container for heating and cooking.