JP3042847U - Paper lid material - Google Patents

Abstract

(57) [Summary] [Problem] A lid member having remarkably high strength and capable of reliably closing the open upper surface of a container can be manufactured by drawing a thick paper material by pressing. SOLUTION: One thick paper material is used as a raw material and integrally formed with a lid surface part 2 by a draw forming by a press, and a flange part 3 provided outward from a peripheral edge of the lid surface part 2. The flange portion 3 is made of a material and includes a first vertical portion 31 extending upward from an outer end edge of the lid surface portion 2 and the first vertical portion 31.
A first horizontal portion 32 that extends substantially horizontally outward from the upper end of the vertical portion 31 and a second vertical portion 33 that extends downward from the outer edge of the first horizontal portion 32. , The outside of the first vertical portion 31 and the first lateral portion 32.
A groove portion 34 having an open lower surface is defined by being surrounded by the lower side and the inside of the second vertical portion 33.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention particularly relates to a paper lid member that is attached to the open upper surface of a container that stores food items therein.

[0002]

[Prior art]

 As is well known, lid materials for lunch boxes, containers for prepared foods, etc. are formed by thin plastics.

[0003]

[Problems to be solved by the device]

 Therefore, since the strength is low and it is easy to tear, when the lid is closed, it may be damaged by an external impact and the foodstuffs inside may leak or be deformed. Moreover, since the interior of the container cannot be sealed sufficiently, it is not only unsuitable as a lid material for a container for storing foodstuffs, but also not practical. Therefore, there is a demand for a lid member that has high strength and is not easily damaged, and that can surely seal the open upper surface of the container.

[0004]

[Means for Solving the Problems]

 The present invention has been proposed in view of the above-mentioned conventional drawbacks and in response to the conventional demands. A lid surface portion and a peripheral edge of the lid surface portion are formed by pressing a single thick paper material as a raw material by press forming. A integrally formed paper lid member having a flange portion provided outward from the first vertical portion extending upward from the outer end edge of the lid surface portion, and the first vertical portion. A first horizontal portion that extends substantially horizontally outward from the upper end of the vertical portion, and a second vertical portion that extends downward from the outer edge of the first horizontal portion. Is characterized in that a groove portion having an open bottom is surrounded by the outer side of the first vertical portion, the lower side of the first horizontal portion, and the inner side of the second vertical portion.

Further, according to the present invention, the lid surface portion is formed with a floating portion that bulges upward except the peripheral edge portion, so that the groove that is open upward between the outer peripheral edge of the floating portion and the flange portion. Is formed.

[0006]

[Embodiment of the invention]

 A concrete configuration of the present invention will be described below based on an embodiment shown in the drawings. A paper lid member 1 of the present invention is made of a single thick paper material as a raw material, and a lid surface portion is formed by drawing with a press. 2 and a flange portion 3 provided outward from the peripheral edge of the lid surface portion 2 are integrally molded.

The flange portion 3 extends from an outer end edge of the lid surface portion 2 upwardly, and a first vertical portion 31 extends substantially horizontally from an upper end of the first vertical portion 31 toward the outside. The first horizontal portion 32 and the second vertical portion 33 extend obliquely downward from the outer edge of the first horizontal portion 32.

Therefore, the flange portion 3 has a groove portion 34 which is open at the lower surface and is surrounded by the outer side of the first vertical portion 31, the lower side of the first horizontal portion 32 and the inner side of the second vertical portion 33. Will be configured.

Further, when a rising portion 21 is formed on the lid surface portion 2 except the peripheral portion, the groove 22 is opened between the outer peripheral edge of the rising portion 21 and the collar portion 3. It is formed.

The paper lid member 1 of the present invention has the above-mentioned structure, and can be used particularly when a paper container 41 integrally formed by pressing a sheet of cardboard as a raw material is attached. it can.

The paper container 41 includes a first step portion 45 including an upper end portion of a side wall portion 43 rising from the peripheral edge of the bottom surface portion 42 and a first horizontal portion 44 extending outward from the upper end of the upper end portion. And a second step portion formed by a first vertical portion 46 rising from the outer edge of the first step portion 45 and a second horizontal portion 47 extending outward from the upper end of the first vertical portion 46. 48, and a second vertical portion 49 is formed on the outer peripheral edge of the second horizontal portion 47, and the second vertical portion 49 descends obliquely downward to form a paper container 41 together with the first step 45 and the second step 48. The upper edge portion of can be reinforced.

When the paper lid member 1 of the present invention is applied to the open upper surface of the paper container 41 having the above-described structure, the bottom portion of the groove 22 comes into close contact with the first horizontal portion 44 and the first vertical portion. 46, the second lateral portion 47, and the second vertical portion 49 are closely fitted inside the groove portion 34. Therefore, the paper container 41 can be closed sufficiently tightly, and the contact portion between the groove 22 and the first lateral portion 44 or the first lateral portion 32 and the second lateral portion 47 can be heat-sealed, If sealed with an adhesive or the like, the inside of the paper container 41 can be liquid-tightly and airtightly closed when the paper lid 1 is closed.

The present invention has been described above based on the embodiments shown in the drawings. However, the present invention is not limited to the above-described embodiments, but any structure may be used as long as it is within the scope of the claims for utility model registration. It can be carried out at any time.

[0014]

[Effect of the invention]

 In summary, the present invention uses a single thick paper material as a raw material, and is formed into a unitary paper lid having a lid surface portion and a flange portion provided outward from the peripheral edge of the lid surface portion by draw forming by pressing. The brim portion includes a first vertical portion extending upward from an outer edge of the lid surface portion, and a first horizontal portion extending substantially horizontally outward from an upper end of the first vertical portion. , A second vertical portion extending downward from the outer edge of the first horizontal portion, the outside of the first vertical portion, the lower side of the first horizontal portion, and It is characterized in that a groove portion having an open lower surface, which is surrounded by the inner side of the second vertical portion, is formed.

In addition, the lid surface portion is formed with a raised portion that is bulged upward except for the peripheral edge portion, thereby forming a groove that opens upward between the outer peripheral edge of the raised portion and the collar portion. Is.

Therefore, not only can a thick paper material be manufactured with a single press in a very simple manner and with a high dimensional accuracy, but also the groove and lid surface of the flange provided on the outer peripheral edge can be manufactured. Since the groove between the collar and the collar portion has remarkably high strength, it is not deformed even when an impact is applied from the outside, and the contents of the container to be adhered can be surely protected. In addition, since it can be heat-sealed to the upper surface of the container at the peripheral and lateral portions of the lid surface part, the inside of the container can be hermetically sealed, and is particularly used as a lid material for a lunch box or as a lid material for a side dish container. This makes it possible to provide a lid material with a high practical value.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper lid material 2 Lid surface part 3 Collar part 21 Lifting part 22 Groove 31 1st vertical part 32 1st horizontal part 33 2nd vertical part 34 Groove part 41 Paper container 42 Bottom part 43 Side wall part 44 1st Lateral portion 45 First step portion 46 First vertical portion 47 Second lateral portion 48 Second step portion 49 Second vertical portion

Claims (2)

[Utility model registration claims] 1. An integrally-formed paper lid material having a lid surface portion and a collar portion provided outward from a peripheral edge of the lid surface portion, which is formed by drawing from one thick paper material as a raw material. The collar portion includes a first vertical portion that extends upward from an outer edge of the lid surface portion, a first horizontal portion that extends substantially horizontally outward from an upper end of the first vertical portion, and The second vertical portion extends downward from the outer edge of the first horizontal portion, so that the outside of the first vertical portion, the lower side of the first horizontal portion, and the second vertical portion. A lid member made of paper, characterized in that a groove portion having an open lower surface surrounded by the inside of the vertical portion is formed. 2. The lid surface portion is formed with a raised portion which is raised upward except for a peripheral edge portion, thereby forming a groove which is opened upward between the outer peripheral edge of the raised portion and the flange portion. Paper lid material described.