LUNCH BOX

• US 20130161379A1
• Filed: 06/26/2012
• Published: 06/27/2013
• Est. Priority Date: 12/22/2011
• Status: Active Grant

• Current Assignee: Hsin-Chieh Li
• Original Assignee: Hsin-Chieh Li
• Inventors: Li, Hsin-Chieh
• Granted Patent: US 8,814,032 B2
• Time in Patent Office: Days
• US Class Current: 229/124
• CPC Class Codes: B65D 5/24 with adjacent sides interconnected by gusset folds
• CPC Class Codes: B65D 5/6667 and connected to one another in order to form an uninterrupted telescoping flange B65D5/667 takes precedence

Abstract

A lunch box includes a main body having a bottom portion, two side portions, a front portion and a back portion to define a receiving space, and a cover that covers upper portion of the main body extending from the back portion. Two side portions extend from bottom part of the junction of the front portion and back portion to form first shaping lines, and a retracting portion is formed between two side portions and two first shaping lines, and an expanding portion is formed at the junction of first shaping lines and the front portion. When the cover is bended down to cover the main body, the front portion is restored when the retracting portion rebounds, and the expanding portion is outwardly against the junction of the front cover and side covers to form a restricting position, so the box can be closed securely without external securing components.

Claims

1. A lunch box comprising:

a main body having a bottom portion, two side portions, a front portion and a back portion to define a receiving space, and a cover that is used to cover an upper portion of the main body extending from the back portion and connecting with the back portion through an upper cover,

wherein two side portions of the main body extend from bottom part of the junction of the front portion and the back portion to form a first shaping line, and a retracting portion is formed between two side portions and two first shaping lines, and an expanding portion is formed at the junction of first shaping lines and the front portion.

2. The lunch box of claim 1, wherein the front portion and two side portions are connected to outwardly form a tilted shape with an angle.

3. The lunch box of claim 2, wherein Two side covers vertically extend from both sides of the upper cover of the cover, and are restricted outside two side portions of the main body.

4. The lunch box of claim 3, wherein the front cover forms a retracting tilted shape corresponding to the front portion of the main body.

5. The lunch box of claim 3, wherein two outer and upper portions of the front cover extend toward the center to form two second shaping lines, and a lifting portion is formed between a protruding portion of two second shaping lines and the front portion.

6. The lunch box of claim 4, wherein two outer and upper portions of the front cover extend toward the center to form two second shaping lines, and a lifting portion is formed between a protruding portion of two second shaping lines and the front portion.