Pill Container Lid Spring Structure for Reduced Elastic Fatigue
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Solution Overview
Problem
Conventional pill containers suffer from elastic assembly fatigue due to large angle bending, leading to insufficient lid opening after prolonged use.
Innovation Solution
The introduction of first and second protruding sections in the elastic assembly of the pill container provides additional space for the flexural segment to bend without direct contact with the body, preventing fatigue and allowing the lid to maintain a large opening angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the elastic assembly is bent at a large angle when the lid is closed, then the lid can be pushed open effectively, but the elastic assembly acquires elasticity fatigue after long-term use
Solution Approach 1:
The elastic assembly is divided into multiple segments (first elastic segment, second elastic segment, third elastic segment) with distinct functions. The first segment provides pushing force, the second segment bends at a reduced angle, and the third segment connects to the lid. This segmentation allows the bending action to be distributed across multiple segments rather than concentrated in one location, reducing stress and fatigue on any single segment.
Solution Approach 2:
Different segments of the elastic assembly are designed with different structural characteristics optimized for their specific functions. The first segment is designed for maximum deflection and force generation, the second segment is designed for controlled bending with support structures, and the third segment is designed for connection to the lid. This local optimization ensures that each segment operates within its optimal stress range, preventing overall fatigue.
2Device complexity
If the flexural segment directly contacts the body wall, then the structure is compact, but the flexural segment folds at sharp corners causing fatigue
Solution Approach 1:
A support structure (comprising support walls and support columns) is introduced as an intermediary element between the flexural segment and the body wall. This support structure guides the bending path of the flexural segment, ensuring it bends along a smooth arc rather than folding at sharp corners. The support structure mediates the interaction between the elastic assembly and the body, preventing direct contact that would cause stress concentration.
3Device complexity
If the lid opening angle is limited by elastic assembly constraints, then the structure remains simple, but the lid cannot remain open at a large angle
Solution Approach 1:
The elastic assembly is designed to dynamically adjust its configuration as the lid opens. The multiple segments allow the assembly to progressively extend and redistribute stress during the opening motion, enabling the lid to achieve a larger opening angle without requiring a complex mechanical stop or additional locking mechanism. The dynamic response of the elastic segments provides the necessary force distribution throughout the opening range.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design prolongs the lifespan of the elastic assembly by reducing fatigue, ensuring the lid remains open at a desired angle for a longer duration.
Implementation Method 1
Each one of the at least one elastic assembly comprises a first segment, a second segment, a flexural segment, and a first protruding section. The flexural segment can be bent or straightened... the elastic assembly is less prone to elastic fatigue
Data Source
AI summary
A pill container has a body, at least one lid, and at least one elastic assembly. The body comprises a first wall, a second wall, and at least one compartment. The first wall and second wall are two opposite sides of the body. The compartment is located between the first wall and the second wall. The lid is pivotably mounted on the second wall of the body. The elastic assembly is located on the second wall, and has a flexural segment and a first protruding section. The first protruding section is located on the flexural segment and contacts the second wall. The first protruding section supports a space between the flexural segment of the elastic assembly and the body.