Tray structure with bottom support function

Abstract

A tray structure with bottom support function comprises: a bottom wall; a side wall disposed surrounding the bottom wall and extending in a direction away from the bottom wall to define a receiving space; and a reinforcement portion disposed on the bottom wall and extending toward two sides of the side wall; wherein a thickness of the reinforcement portion is greater than a thickness of other portions of the bottom wall. By introducing the design of the reinforcement portion on the bottom wall of the tray, the overall rigidity and deformation resistance of the tray structure can be enhanced, while maintaining existing advantages of environmental friendliness, stackability, and compatibility with automated packaging processes, without significantly increasing material cost or processing complexity. This addresses urgent issues in the current field of paper-based packaging technologies.

Claims

1. A tray structure with bottom support, comprising: a bottom wall; a side wall surrounding the bottom wall and extending away from the bottom wall to enclose a support space; and a reinforcing portion disposed on the bottom wall and extending toward both sides of the side wall; wherein the thickness of the reinforcing portion is greater than the thickness of the rest of the bottom wall; wherein the reinforcing portion has a first fold line and a second fold line arranged in parallel; the ends of the first fold line and the second fold line are respectively connected to the two sides of the side wall, and the reinforcing portion is formed by bending and overlapping along the first fold line and the second fold line.

2. The tray structure with bottom support as described in claim 1, wherein when the reinforcement is formed, one of the first fold line and the second fold line is attached to an upper wall surface of the bottom wall, and the other is attached to a lower wall surface of the bottom wall opposite the upper wall surface.

3. The tray structure with bottom support as described in claim 2, wherein the lower wall surface of the bottom wall is divided into a first bottom surface and a second bottom surface by the reinforcing portion, and the first bottom surface and the second bottom surface have different heights.

4. The tray structure with bottom support as described in claim 2, wherein the reinforcing part further includes an auxiliary fold line, which is arranged parallel to the first fold line and the second fold line; the reinforcing part is formed by bending and overlapping along the first fold line and the second fold line and then bending along the auxiliary fold line, so that the lower wall surface of the bottom wall is divided into a first bottom surface and a second bottom surface by the reinforcing part, and the first bottom surface and the second bottom surface have the same height.

5. The tray structure with bottom support as described in claim 1, wherein a slit is formed on each side of the sidewall corresponding to the position of the reinforcement, extending along the height direction of the sidewall.

6. The tray structure with bottom support as described in claim 5, wherein the first fold line is abutted against an upper wall surface of the bottom wall, and the second fold line is abutted against a lower wall surface of the bottom wall opposite the upper wall surface; the slits are aligned with the first fold line of the reinforcing portion.

7. The tray structure with bottom support as described in claim 5, wherein the first fold line is attached to a lower wall surface of the bottom wall, and the second fold line is attached to an upper wall surface of the bottom wall opposite to the lower wall surface; the slits are offset from the second fold line of the reinforcing portion.

8. The tray structure with bottom support as described in claim 1 further includes a second reinforcing portion disposed on the bottom wall and extending toward both sides of the side wall, and the second reinforcing portion being parallel to the reinforcing portion and spaced apart by a predetermined distance; wherein the thickness of the second reinforcing portion is greater than the thickness of the rest of the bottom wall excluding the reinforcing portion.

9. The tray structure with bottom support as described in claim 8, wherein the second reinforcing part has a third fold line and a fourth fold line arranged in parallel; the third fold line and the fourth fold line are generally parallel to the first fold line and the second fold line, and their ends are respectively connected to the two sides of the side wall, and the second reinforcing part is formed by bending and overlapping along the third fold line and the fourth fold line.

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