TWM654464U - Improved lunch box structure - Google Patents

Abstract

An improved lunch box structure includes a lunch box, wherein the lunch box has a box body and a lid, the box body and the lid are connected at one side, and the lid can be turned over relative to the box body, the lid has a through hole, and a transparent plastic film is provided on the inner side of the lid to cover the through hole, when the lid is covered on the box body to cover its top surface, the appearance of the box body can be confirmed through the through hole and the plastic film, and the water vapor permeability of the plastic film is measured to be between 2.7 and 3.3g. 0.1mm/(m^2.24h) in an environment of 38°C and relative humidity of 90%.

Description

Improved lunch box structure

This work is about an improvement in the structure of a lunch box, especially an improvement in the structure of a lunch box that allows the inside to be clearly seen.

According to the information, bento is a kind of food that contains rice, vegetables, meat and other dishes. It is usually packaged in a limited space, usually in a box, so it is also called a box lunch. For tight meal time and considering the size of the dining space, bento can conveniently meet the nutritional needs of a meal.

Therefore, the lunch box used to hold the lunch is a very important component of food such as lunch. When buying or taking lunch, some problems are often encountered. Since the inside of the paper lunch box cannot be seen, it may be difficult for consumers to see the dishes in the lunch box, or group lunches cannot see the main dishes and frequently loosen the rubber band to confirm and then cover it again. Therefore, lunch boxes with one side transparent have come into being. Convenience stores often use this configuration to facilitate consumers to view the dishes and choose.

However, there are some problems with this type of lunch box with one side transparent. These transparent areas are usually made of plastic. The heat and humidity of the ingredients may cause water to condense on the plastic, which reduces visibility and still makes it impossible to see the food in the lunch box. In addition, the food in the lunch box is often repeatedly soaked by condensed water, making the lunch taste bad.

Therefore, the creator of this product, in view of this, thought of the idea of creation, and designed it with many years of experience. After many discussions and sample tests, and many revisions and improvements, this creation was launched.

The technical problem that this invention aims to solve is to provide an improved lunch box structure that allows the interior to be clearly seen in response to the above-mentioned deficiencies in the existing technology.

Technical features for solving the problem:

This invention provides an improved lunch box structure, which includes a lunch box, wherein the lunch box has a box body and a lid body, the box body and the lid body are connected at one side, and the lid body can be turned over relative to the box body, the lid body has a through hole, and a transparent plastic film is provided on the inner side of the lid body to cover the through hole, when the lid body is covered on the box body to cover its top surface, the appearance of the box body can be confirmed through the through hole and the plastic film, and the water vapor permeability of the plastic film is measured to be between 2.7 and 3.3g. 0.1mm/(m^2.24h) in an environment of 38°C and relative humidity of 90%.

Furthermore, the box body is provided with a plurality of ribs for dividing the space inside the box body.

Preferably, the front side of the cover is provided with a front wing, and the left and right sides of the cover are respectively provided with a side wing. The front wing and the side wing can be folded concavely to fit the inner side surface or the outer side surface of the box body respectively, so that the box body can be covered with the cover body.

More preferably, the front wing is provided with a cut line, the side wing is provided with a concave edge, the front of the box body is provided with two recessed slots and a retaining edge is formed between the two recessed slots, the recessed edge is used to prevent the rib from contacting the side wing, and the retaining edge is inserted through the cut line, so that the front wing and the side wing can be stably attached to the inner surface of the box body.

Furthermore, the material of the plastic film is PET.

The main purpose of this invention is to reduce the condensation of water vapor on the plastic film due to temperature and humidity when the lunch box is used to hold hot dishes, because the plastic film has a high water vapor permeability coefficient and can easily allow water vapor to pass through, thereby having the effect of being able to clearly see the inside of the box.

Other objects, advantages and novel features of this invention will become more apparent from the following detailed description and the accompanying drawings.

This creative part:

(10): Lunch box

(11):Box

(111): ribs

(112):Card slot

(113): Card fate

(12): Cover

(121):Through hole

(122):Front wing

(1221):Secant

(123): Side wing

(1231): Concave edge

(13):Plastic film

[Figure 1] is a three-dimensional image of this work.

[Figure 2] is an exploded view of this work.

[Figure 3] is a schematic diagram of the usage status of this creation.

[Figure 4] is a side cross-sectional view of this creation in use.

In order to enable the review committee to have a further understanding and recognition of the purpose, characteristics and functions of this creation, please list the embodiments in conjunction with the [Simple Description of Figures] and describe them in detail as follows: First, please refer to Figures 1 and 2. This creation provides an improved lunch box structure, which includes a lunch box (10), wherein the lunch box (10) has a box body (11) and a cover (12), wherein the box body (11) and the cover (12) are connected at one side, and the cover (12) can be relative to the box body. The cover (11) is opened, and the cover (12) has a through hole (121). A transparent plastic film (13) is provided on the inner side of the cover (12) to cover the through hole (121). When the cover (12) is covered on the box (11) to cover the top surface, the appearance of the box (11) can be confirmed through the through hole (121) and the plastic film (13). The water vapor permeability of the plastic film (13) is measured to be between 2.7 and 3.3 g. 0.1 mm/(m^2.24h) in an environment of 38°C and a relative humidity of 90%.

As shown in Figures 3 and 4, in actual use, the food is placed in the box body (11), and the cover body (12) is placed on the box body (11) to cover the top surface. The hot food will cause water vapor to condense on the plastic film (13) and affect its visibility. However, since the plastic film (13) has a high water vapor permeability coefficient, it can easily allow water vapor to penetrate to avoid water condensation. Therefore, the appearance of the food in the box body (11) can still be clearly confirmed through the through hole (121) and the plastic film (13) without the visibility being affected by the condensed water droplets.

This invention provides an improved structure of a lunch box, wherein the box body (11) is provided with a plurality of convex ribs (111) for dividing the space inside the box body (11).

This invention provides an improved structure of a lunch box, wherein the convex rib portion (111) is connected to the box body (11).

As shown in FIG. 2, the invention provides an improved lunch box structure, wherein the front side of the lid (12) is provided with a front wing (122), and the left and right sides of the lid (12) are respectively provided with a side wing (123), and the front wing (122) and the side wing (123) can be folded to fit the inner side surface or the outer side surface of the box (11) respectively, so that the lid (12) can cover the box (11) with certainty.

As shown in FIG. 3 and FIG. 4, the invention provides an improved structure of a lunch box, wherein the front wing portion (122) is provided with a cut line (1221), the side wing portion (123) is provided with a concave edge (1231), the front of the box body (11) is provided with two recessed slots (112) and a retaining edge (113) is formed between the two recessed slots (112). 31) To prevent the rib (111) from touching the side wing (123), the edge (113) is inserted through the cut line (1221), so that the front wing (122) and the side wing (123) can be stably attached to the inner surface of the box body (11), and the box body (11) can be securely covered with the cover (12) without using tools such as rubber bands.

This invention provides an improved structure of a lunch box, wherein the material of the plastic film (13) is PET.

This invention provides an improved lunch box structure, wherein the oxygen permeability of the plastic film (13) is measured at 38°C and a relative humidity of 0% and is between 1.4*10^(-15) and 1.6*10^(-15)cm^3. cm/(cm^2. S. Pa), and has appropriate air permeability.

This invention provides an improved lunch box structure, wherein the haze of the plastic film (13) is between 4% and 5%, thereby providing better visibility.

The improved structure of the lunch box of this invention has the following effects: the plastic film (13) has a relatively high water vapor permeability coefficient and can easily allow water vapor to penetrate, thereby reducing the condensation of water vapor on the plastic film (13) due to temperature and humidity when the lunch box (10) is filled with hot dishes, and has the effect of being able to clearly see the inside of the box body (11). The concave edge (1231) cooperates with the convex rib (111) and the clamping edge (113) cooperates with the cutting line (1221) to ensure that the box body (11) is covered with the cover body (12) without using tools, and has the effect of environmental protection.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved creative content, while also being able to achieve industrial applicability and progress. Moreover, this creation has not been seen in any publication and is also novel, and should comply with the relevant provisions of the Patent Law. Therefore, a new patent application is filed in accordance with the law, and the Jun Bureau Review Committee is requested to grant legal patent rights, and I am very grateful.

However, the above is only a preferred embodiment of this creation, and it cannot be used to limit the scope of implementation of this creation; that is, all equivalent changes and modifications made within the scope of the patent application for this creation should still fall within the scope of the patent for this creation.

(10): Lunch box

(11):Box

(111): ribs

(112):Card slot

(113): Card fate

(12): Cover

(121):Through hole

(122):Front wing

(1221):Secant

(123): Side wing

(1231): Concave edge

(13):Plastic film

Claims (8)

An improved lunch box structure includes a lunch box, wherein: The lunch box has a box body and a lid body. The box body and the lid body are connected at one side, and the lid body can be opened relative to the box body. The lid body has a through hole. A transparent plastic film is provided on the inner side of the lid body to cover the through hole. When the lid body is covered on the box body to cover its top surface, the appearance of the box body can be confirmed through the through hole and the plastic film. The water vapor permeability coefficient of the plastic film is measured to be between 2.7 and 3.3g. 0.1mm/(m^2.24h) in an environment of 38°C and relative humidity of 90%. The improved structure of the lunch box as described in claim 1, wherein the box body is provided with a plurality of ribs for dividing the space inside the box body. The improved structure of the lunch box as described in claim 2, wherein the rib is connected to the box body. The improved lunch box structure as described in claim 2, wherein the front side of the lid is provided with a front wing, and the left and right sides of the lid are respectively provided with a side wing, and the front wing and the side wing can be folded concavely to fit the inner side surface or the outer side surface of the box body respectively, so that the box body can be covered with the lid body. The improved structure of the lunch box as described in claim 4, wherein the front wing is provided with a cut line, the side wing is provided with a concave edge, the front of the box body is provided with two recessed slots and a retaining edge is formed between the two recessed slots, the recessed edge is used to prevent the rib from contacting the side wing, and the retaining edge is inserted through the cut line, so that the front wing and the side wing can be stably attached to the inner surface of the box body. The improved structure of the lunch box as described in claim 1, wherein the material of the plastic film is PET. The improved structure of the lunch box as described in claim 1, wherein the oxygen permeability of the plastic film is measured to be between 1.4*10^(-15) and 1.6*10^(-15)cm^3. cm/(cm^2. S. Pa) at 38°C and relative humidity of 0%. The improved structure of the lunch box as described in claim 1, wherein the haze of the plastic film is between 4% and 5%.

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