CN114903264A

CN114903264A - Folding structure in meal box

Info

Publication number: CN114903264A
Application number: CN202210029835.4A
Authority: CN
Inventors: 段彦希
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-09
Filing date: 2022-01-12
Publication date: 2022-08-16
Also published as: TW202231228A; JP7308566B2; TWI756051B; US20220250797A1; DE102022100685A1; JP2022122254A

Abstract

The invention relates to a lunch box folding structure, which mainly comprises a body made of soft materials, wherein the body is provided with a peripheral wall made of the soft materials and surrounding and defining an accommodating space, and a bottom wall made of the same materials as the peripheral wall and integrally formed with the peripheral wall, one end of the peripheral wall is connected with the bottom wall, the other end of the peripheral wall is formed with an opening communicated with the accommodating space, the direction of the opening extending to the bottom wall is the supporting force direction, the peripheral wall is provided with an inner surface facing the accommodating space and a surface opposite to the inner surface, the inner surface surrounds the accommodating space and is concavely provided with a plurality of folding grooves, and the surface extends straightly and straightly along the supporting force direction. Because the folding groove is only concavely arranged on the inner surface, the integrity of the surface can be kept, the supporting force of the peripheral wall can be completely transmitted to the bottom wall along the supporting force direction, more stress can be transmitted to the bottom wall to bear, the stress required to be borne by the peripheral wall is reduced, and the deformation of the peripheral wall is further reduced.

Description

Folding structure in meal box

Technical Field

The present invention relates to a foldable container, and more particularly to an inner folding structure of a lunch box.

Background

At present, various containers for holding food, articles or commodities, such as drinking cups, lunch boxes, and storage boxes …, which have folding effects, are commonly available in the market, and in order to reduce the volume of the containers for carrying or storing when not in use, foldable containers made of silica gel materials are widely used in various fields.

Among them, drinking cups or eating utensils that can be folded are most widely known, and especially in the present of popularizing environmental protection, many people can carry their own environmental protection cups or environmental protection bowls when going out, and in order to reduce the volume after finishing using so as to be portable, therefore, the folding container not only can be made with soft material, but also can be annularly concavely provided with folding grooves on the surface and inner face of the container, so that the container can be smoothly folded.

However, in a general folding container, a circle of folding grooves are usually recessed in the outer surface of the container, and a circle of folding grooves are also recessed in the inner surface of the container, and the structure of the position where the folding grooves are recessed in the folding container is relatively fragile, so that when the folding container is unfolded for use, the position where the folding grooves are recessed in the folding container is relatively easy to deform, and the whole container is unstable when standing.

In view of the above, it is necessary to provide a technical means to solve the problem of the collapsible container that the standing is not stable when the collapsible container is unfolded for use.

Disclosure of Invention

The invention aims to solve the problem that a common folding container cannot stand stably when being unfolded for use.

To solve the above problems, the present invention is an inward folding structure of a lunch box, comprising:

the body, surround the perisporium which defines the space, and extend the bottom wall in the bottom of the perisporium, one end of the perisporium connects the bottom wall, another end of the perisporium forms the opening which connects the space, the girth of the opening is greater than the girth of the bottom wall, the perisporium has inner surface facing the space, and surface opposite to the inner surface, the direction that the surface extends to the periphery of the bottom wall is the direction of supporting force, the direction of supporting force and bottom wall have supporting angle, the perisporium is divided into the first section, the second section and the third section at least, wherein, the first section perisporium inner surface forms the opening, one end of the third section perisporium connects with the periphery of the bottom wall, the first section perisporium connects with the second section periporium by the first folding part, the second section connects with the third section periporium by the second folding part, the surface of the first section, the second section, the surface of the third section are flat, the supporting angle is formed between the surface of the first section, the surface of the second section, the surface of the third section and the bottom wall, and the supporting angle is formed between the surfaces of the first folding part and the second folding part and the bottom wall;

when the body is in an unfolded state, the surface of the first section, the surface of the second section, the surface of the third section, the surface of the first folding part and the surface of the second folding part of the peripheral wall are on the same straight line, included angles among the surface of the first section, the surface of the second section, the surface of the third section, the surfaces of the first folding part and the second folding part and the bottom wall are the supporting angles, and when the body is in a folded state, the first folding part and the second folding part deform, and the first section, the second section and the third section are kept in a state of being overlapped on the same height inside and outside.

In a preferred embodiment, the inner surfaces of the first folding portion and the second folding portion are in the form of grooves, the notches of the grooves of the first folding portion are larger than the notches of the second folding portion, and the notches of the second folding portion are deeper than the notches of the first folding portion.

In a preferred embodiment, the supporting angle is 90 to 120 degrees.

In a preferred embodiment, the peripheral wall of the first section is made of a hard material; the second section, the third section and the bottom wall are made of soft materials.

In a preferred embodiment, the peripheral walls of the first, second and third segments are made of hard material, and the first and second folding portions are made of soft material.

In a preferred embodiment, the bottom wall is made of a hard material.

In a preferred embodiment, the body is made of a soft material.

In a preferred embodiment, the peripheral wall extends from the periphery of the bottom wall along the force-receiving direction, so that the peripheral wall extends straightly along the force-receiving direction, and the number of the folding grooves is two, and the two folding grooves are arranged on the inner surface along the force-receiving direction.

In a preferred embodiment, the peripheral wall has a stretching state for stretching and making the accommodating space in a complete state, and each folding groove is bent to make the peripheral wall folded and folded, when the peripheral wall is in the stretching state, the peripheral wall extends along the stretching direction and completely surrounds and forms the accommodating space, the bottom wall is horizontally arranged on a plane, the positions of the bottom wall contacting the ground define a horizontal plane together, a supporting angle is formed between the horizontal plane and the inner surface of the peripheral wall, and the supporting angle is an obtuse angle.

Because the folding groove is only concavely arranged on the inner surface, the integrity of the surface can be kept, the supporting force of the peripheral wall can be completely transmitted to the bottom wall along the supporting force direction, so that more supporting force can be transmitted to the bottom wall to bear, the stress required to bear by the peripheral wall is reduced, and the deformation of the peripheral wall is further reduced. Moreover, because the folding groove is only concavely arranged on the inner surface of the peripheral wall, the integrity of the surface can be maintained, and the surface is rendered a complete plane and is not easy to deform.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 3 is an enlarged partial cross-sectional view of a preferred embodiment of the present invention;

FIG. 4 is a perspective view of a folded state in a preferred embodiment of the present invention;

fig. 5 is a cross-sectional view of a folded state in a preferred embodiment of the invention.

In the figure:

body 10

Accommodating space 11

Peripheral wall 12

First stage 12A

Second segment 12B

Third segment 12C

Inner face 121

Surface 122

Bottom wall 13

Opening 14

Folding slot 15

First folded part 15A

Second fold 15B

Weak point 151 of weakness

Direction of bracing force F

Transverse plane X

Stretching state Q1

Folding state Q2

Support angle theta

Detailed Description

Referring to fig. 1 to 3, the present invention is a lunch box folding structure, which mainly includes a body 10 made of a soft material, wherein the soft material can be a silica gel material in a preferred choice, but the soft material is not limited to the silica gel material, and the soft material capable of achieving a folding effect can be applied to manufacture the body 10 of the present invention, wherein:

the main body 10 has a peripheral wall 12 made of the soft material and surrounding and defining an accommodating space 11, and a bottom wall 13 extending from the bottom of the peripheral wall 12 and integrally formed, wherein one end of the peripheral wall 12 is connected to the bottom wall 13, the other end of the peripheral wall 12 forms an opening 14 communicating with the accommodating space 11, the perimeter of the opening 14 is greater than the perimeter of the bottom wall 13, the peripheral wall 12 has an inner surface 121 facing the accommodating space 11, and a surface 122 opposite to the inner surface 121, the direction in which the surface 122 extends to the bottom wall 13 is a supporting direction F, a supporting angle θ is included between the supporting direction F and the bottom wall 13, the peripheral wall 12 is divided into at least a first segment 12A, a second segment 12B and a third segment 12C, wherein the opening 14 is formed on the inner surface 121 of the peripheral wall 12 of the first segment 12A, one end of the peripheral wall 12 of the third segment 12C is connected to the perimeter of the bottom wall 13, the peripheral wall 12 of the first segment 12A is connected to the peripheral wall 12 of the second segment 12B by a folding portion 15A, the peripheral wall 12 of the second segment 12B and the peripheral wall 12 of the third segment 12C are connected by a second folding portion 15B, the surface 122 of the first segment 12A, the surface 122 of the second segment 12B, and the surface 122 of the third segment 12C are all straight, the support angle θ is included between the surface 122 of the first segment 12A, the surface 122 of the second segment 12B, the surface 122 of the third segment 12C, and the bottom wall 13, and the support angle θ is included between the surface 122 of the first folding portion 15A and the surface 122 of the second folding portion 15B and the bottom wall 13, the peripheral wall 12 has an inner surface 121 facing the accommodating space 11, and the surface 122 opposite to the inner surface 121, the inner surface 121 is provided with a plurality of folding grooves 15 around the accommodating space 11, and the surface 122 extends straight along the supporting force direction F.

When the body 10 is in the unfolded state, the

surfaces

122 and 122 of the first, second and

third sections

12A and 12C of the peripheral wall 12 are aligned with the

surfaces

122 and 122 of the first and

second folding portions

15A and 15B, respectively, and the included angles between the

surfaces

122 and 122 of the first and

second sections

12A and 12B and the

surfaces

122 and 122 of the first and second folding

portions

15A and 15B and the bottom wall 13 are the supporting angle θ, so that when the body 10 is in the folded state, the first and second folding

portions

15A and 15B deform, and the first, second and

third sections

12A and 12B and 12C are kept in the state of being overlapped inside and outside at the same height.

The inner surface 121 of the first folded portion 15A and the inner surface 121 of the second folded portion 15B are recessed, the recess of the first folded portion 15A is larger than the recess of the second folded portion 15B, and the recess of the second folded portion 15B is deeper than the recess of the first folded portion 15A, wherein when the body 10 is folded, the peripheral wall 12 of the second segment 12B enters the recess of the first folded portion 15A without interference, and the second folded portion 15B is folded from the surface 122, so that the recess of the second folded portion 15B is stretched and the surface 122 of the peripheral wall 12 of the second segment 12B and the surface 122 of the peripheral wall 12 of the third segment 12C are close to each other. In the first embodiment, the peripheral wall 12 of the first section 12A is made of a hard material; the second section 12B, the third section 12C and the bottom wall 13 are made of soft materials. In the second embodiment, the peripheral wall 12 of the first, second and

third sections

12A, 12B, 12C is made of a hard material, and the first and second folded

portions

15A, 15B are made of a soft material. In the third embodiment, the bottom wall 13 is made of a hard material. In the fourth embodiment, the body 10 is made of soft material.

In this embodiment, the peripheral wall 12 extends from the periphery of the bottom wall 13 along the supporting direction F, so that the peripheral wall 12 extends straight along the supporting direction F, the number of the folding grooves 15 is two, and the two folding grooves 15 are arranged on the inner surface 121 along the supporting direction F, so that the peripheral wall 12 can be twisted and folded at the position where the folding groove 15 is arranged, so that the peripheral wall 12 has a stretching state Q1 for stretching and making the accommodating space 11 in a complete state, and each folding groove 15 is bent, so that the peripheral wall 12 is folded into a state of fig. 4 and a folding state Q2 is presented.

Referring to fig. 1 to 3, when the peripheral wall 12 is in the tensioned state, the peripheral wall 12 extends along the supporting direction F and completely surrounds the accommodating space 11, the bottom wall 13 is disposed on a plane, and positions of the bottom wall 13 contacting the ground define a horizontal plane X, a supporting angle θ is included between the horizontal plane X and the inner surface 121 of the peripheral wall 12, and the supporting angle θ is an obtuse angle, which is an angle greater than 90 degrees.

In the above description, the structural configuration and the connection relationship thereof in a preferred embodiment of the present invention are as follows:

referring to fig. 1 to 3, when the peripheral wall 12 is in the stretching state Q1, the peripheral wall 12 extends along the stretching force, and the inner surface 121 of the peripheral wall 12 and the transverse plane X form the supporting angle θ, so that the peripheral wall 12 is in an inclined state.

Referring to fig. 3, when a user applies pressure from the opening 14 of the peripheral wall 12 toward the bottom wall 13, the force is transmitted from the opening 14 of the peripheral wall 12 toward the bottom wall 13 along the supporting force direction F, and since the surface 122 of the peripheral wall 12 extends straight along the supporting force direction F, the force can be smoothly transmitted from the peripheral wall 12 to the bottom wall 13 along the supporting force direction F.

It is noted that, since the surface 122 extends along the supporting direction F smoothly, the stress on the peripheral wall 12 can be transmitted to the bottom wall 13 along the extending direction smoothly, thereby greatly reducing the deformation of the peripheral wall 12. To explain the reason why the peripheral wall 12 is not easily deformed in detail, each folding groove 15 is recessed from the inner surface 121 only, so that each folding groove 15 has a weak point 151 closest to the surface 122, the weak point 151 in each folding groove 15 is closer to the surface 122 than the other positions of each folding groove 15, so that the position of the weak point 151 forms a region with the thinnest thickness between the inner surface 121 and the surface 122, since each folding groove 15 is recessed from the inner surface 121, when a force is transmitted from the opening 14 of the peripheral wall 12 to pass through each folding groove 15, each folding groove 15 is bent from the position of the weak point 151 toward the surface 122, and since the surface 122 extends straight in the bracing force direction F, the surface 122 is not easily deformed in a complete plane, and therefore, the amount of deformation of the inner surface 121 from the weak point 151 toward the surface 122 is cancelled at a position close to the surface 122, thereby reducing the deformation of the peripheral wall 12.

Because the folding groove 15 is only concavely arranged on the inner surface 121, the integrity of the surface 122 can be further maintained, and the stress of the peripheral wall 12 can be completely transmitted to the bottom wall 13 along the supporting force direction F, so that more stress can be transmitted to the bottom wall 13 to be borne, the stress required to be borne by the peripheral wall 12 is reduced, and the deformation of the peripheral wall 12 is further reduced. Furthermore, since the folding groove 15 is recessed only in the inner surface 121 of the peripheral wall 12, the integrity of the surface 122 can be maintained, and the surface 122 is rendered completely flat and is not easily deformed.

Claims

1. An interior folding structure of lunch box, comprising:

the body surrounds a peripheral wall which defines an accommodating space, a bottom wall extends from the bottom of the peripheral wall, one end of the peripheral wall is connected with the bottom wall, the other end of the peripheral wall forms an opening which is communicated with the accommodating space, the circumference of the opening is larger than that of the bottom wall, the peripheral wall is provided with an inner surface which faces the accommodating space and a surface which is opposite to the inner surface, the direction of the surface extending to the periphery of the bottom wall is a supporting force direction, a supporting angle is formed between the supporting force direction and the bottom wall, the peripheral wall is at least divided into a first section, a second section and a third section, the opening is formed in the inner surface of the peripheral wall of the first section, one end of the peripheral wall of the third section is connected with the periphery of the bottom wall, the peripheral wall of the first section is connected with the peripheral wall of the second section through a first folding part, the peripheral wall of the second section is connected with the peripheral wall of the third section through a second folding part, and the surface of the first section, The surface of the second section and the surface of the third section are straight, the supporting angle is clamped between the surface of the first section, the surface of the second section, the surface of the third section and the bottom wall, and the surfaces of the first folding part and the second folding part are also straight and clamped between the first folding part and the bottom wall;

2. A lunch box folding structure as claimed in claim 1, wherein the inner surfaces of the first folding part and the second folding part are in the form of grooves, the groove of the first folding part has a notch larger than the notch of the second folding part, and the notch of the second folding part is deeper than the notch of the first folding part, wherein when the body is in the folded state, the peripheral wall of the second section is folded back, the peripheral wall of the second section enters the notch of the first folding part without interference, and the second folding part is folded from the surface, so that the notch of the second folding part is stretched and the surface of the peripheral wall of the second section and the surface of the peripheral wall of the third section are close to each other.

3. The lunch box folding structure of claim 1, wherein said support angle is 90-120 degrees.

4. A lunch box folding structure as claimed in claim 1, wherein the peripheral wall of said first section is made of a hard material; the second section, the third section and the bottom wall are made of soft materials.

5. The lunch box folding structure of claim 1, wherein the peripheral walls of the first, second and third sections are made of hard material, and the first and second folding portions are made of soft material.

6. The lunch box folding structure of claim 1, wherein the bottom wall is made of a hard material.

7. The lunch box folding structure of claim 1, wherein the body is made of soft material.

8. The lunch box folding structure as claimed in claim 1, wherein the peripheral wall extends from the periphery of the bottom wall along the supporting direction, so that the peripheral wall extends straight along the supporting direction, the inner surface surrounds the accommodating space and is concavely provided with a plurality of folding grooves, the number of the folding grooves is two, and the two folding grooves are arranged on the inner surface along the supporting direction.

9. A lunch box folding-in structure as claimed in claim 1, wherein said inner face has a plurality of folding grooves recessed around said receiving space, said peripheral wall has a stretched state in which said peripheral wall is stretched and said receiving space is in an intact state, and each of said folding grooves is bent and said peripheral wall is folded and folded, when said peripheral wall is in said stretched state, said peripheral wall extends along said stretching direction and completely surrounds said receiving space, and said bottom wall is disposed flat, so that the positions of said bottom wall contacting the ground define a horizontal plane, and a support angle is included between said horizontal plane and the inner face of said peripheral wall, said support angle being an obtuse angle.