Storage Box Frame Member Rigidity and Panel Nesting

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Solution Overview

Problem

The existing storage boxes have a lower rigidity at the front end due to their bottomed rectangular cylindrical shape, which affects their structural integrity and usability.

Innovation Solution

A storage box design featuring a rectangular parallelepiped case main body with a top plate, frame member, and an opening-closing panel that rotates and slides, incorporating a hinge piece with a rotation rib and a slide rib for enhanced rigidity and ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the storage box is formed as a bottomed rectangular cylindrical shape open to the front side, then it is easy to manufacture and access, but the rigidity of the front end part becomes lower than other portions

Engineering Contradiction:
Improveease of manufactureVSAvoidrigidity of front end part
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The front end part is segmented into multiple components: a frame member with rectangular frame shape, an opening-closing panel with hinge piece, rotation rib, and slide rib. This segmentation allows each component to contribute to the overall rigidity while maintaining ease of manufacture through modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The front end part combines multiple structural elements (frame member, opening-closing panel, hinge piece, rotation rib, slide rib) into a composite structure that achieves higher rigidity than a simple rectangular cylindrical shape, while still being manufacturable using standard plastic injection molding techniques.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If the opening-closing panel is stored inside the box main body at the open position, then it is easy to put storage articles in and out, but the structural complexity increases

Engineering Contradiction:
Improveease of putting articles in and outVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The opening-closing panel is nested within the box main body when in the open position. The panel stores inside the hollow space of the box, similar to a nested doll structure, allowing easy access to storage articles while maintaining a compact overall structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The opening-closing panel is designed with dynamic movement capabilities through the hinge piece, rotation rib, and slide rib mechanisms. This allows the panel to transition between closed, open, and stored positions, providing operational flexibility without excessive structural complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11203466B2Storage box
Publication Date: 2021.12.21 IRIS OHYAMA
  • US11203466B2 patent drawing
  • US11203466B2 patent drawing
  • US11203466B2 patent drawing

AI summary

A storage box is configured to include a rectangular parallelepiped box-shaped case main body that is opened to a front side and an upper side, a top plate that is assembled to an upper end part of the case main body, and a rectangular frame-shaped frame member is assembled to the front end part of the case main body and the front end part of the top plate. As a result, the rigidity of the front end part of the storage box can be increased by the frame member. In addition, the opening-closing panel is rotatably assembled to the frame member. The opening-closing panel is disposed at the rotation position by being rotated from the closed position to the front side, and by sliding from the rotation position to the rear side the rail portion of the case main body is slid, and then, is disposed at the housing position.