Opening/Closing Mechanism with Inclined Portions and Swing Fulcrum
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Solution Overview
Problem
Existing opening/closing mechanisms often stop prematurely before reaching the normal closing position, leading to incomplete closure and potential rattling or vibration issues.
Innovation Solution
The mechanism incorporates a first and second inclined portion in the opening/closing body, with a swing portion that applies forces in both opening and closing directions, ensuring the cover reaches a normal closing position without stopping, utilizing a fulcrum-based mechanism with a tension applying member to facilitate smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional opening/closing mechanism is used, then the structure is simple, but the opening/closing body stops before reaching the normal closing position
Solution Approach 1:
The patent applies the dynamics principle by introducing a swing portion that can dynamically change its contact point between the first and second inclined portions during the closing operation. This dynamic mechanism allows the opening/closing body to be pushed forward past the normal closing position and then pulled back to the exact closing position, eliminating premature stopping without requiring an overly complex structured
2Manufacturing precision
If the opening/closing body is pushed hard to reach the closing position, then the closing position accuracy is improved, but the risk of damage and operational smoothness deteriorates
Solution Approach 1:
The patent applies beforehand cushioning by using spring members that store elastic energy during the closing operation. When the opening/closing body is pushed forward by the swing portion, the spring members compress and store energy, then release this energy to gently pull the body back to the closing position, preventing damage from hard impacts while ensuring accurate closing
3Reliability
If engagement portions are used to hold the closed state, then the reliability of closed state is improved, but the mechanism complexity increases
Solution Approach 1:
The patent applies self-service by designing the swing portion to automatically engage with the opening/closing body at the closing position through its own swinging motion. The swing portion naturally contacts the inclined portions and the opening/closing body, creating engagement without requiring separate complex engagement mechanisms, thus maintaining reliability while controlling complexity
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
Ensures the opening/closing cover is consistently and securely closed at the normal position, reducing rattling and vibration, and allowing for smooth operation without interruption.
Implementation Method 1
a first inclined portion disposed in an opening/closing body that opens/closes while a first shaft serves as a fulcrum in a main body, a second inclined portion disposed in the opening/closing body, and a swing portion that swings between the first inclined portion and the second inclined portion
Implementation Method 2
utilizing a fulcrum-based mechanism with a tension applying member to facilitate smooth operation
Data Source
AI summary
An opening/closing mechanism includes a first inclined portion disposed in an opening/closing body that opens/closes while a first shaft serves as a fulcrum in a main body, a second inclined portion disposed in the opening/closing body, and a swing portion that swings between the first inclined portion and the second inclined portion while a second shaft disposed in the main body serves as a fulcrum, in which during a closing operation of the opening/closing body, the swing portion applies a force in a closing direction of the opening/closing body by coming into contact with the first inclined portion, after applying a force in an opening direction of the opening/closing body by coming into contact with the second inclined portion.