Lid Mechanism Flap Element Suppresses Rod Protrusion
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Solution Overview
Problem
Existing lid mechanisms for storage boxes, such as console boxes, often generate contact sounds when transitioning from an open to a closed state due to rod protrusions, leading to incomplete locking and potential misoperation issues.
Innovation Solution
A lid mechanism featuring a locking element with a rod and rod biasing member, and a flap element with a higher biasing force, where the flap element's inclined surfaces interact to ensure smooth state changes, preventing rod protrusion and ensuring reliable locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking element uses a bolt lock pin with two rods biased away from each other, then the lid can be locked to the box main body, but the rod tips protrude from the lid in the opened state causing contact sounds and potential misoperation
Solution Approach 1:
A flap element is introduced as an intermediary component between the rod and the external environment. The flap element includes a rod contact portion that restricts the rod tip from protruding when the lid is opened, while a box contact portion interacts with the box main body to control the flap's position. This mediator prevents the harmful protrusion effect while maintaining the locking function.
Solution Approach 2:
The flap element applies preliminary counter-action to prevent the rod tip from protruding in the first place. The rod contact portion is positioned to restrict rod movement before protrusion can occur, and the box contact portion ensures the flap maintains the correct restrictive position through contact with the box main body.
2Object-generated harmful factors
If the flap element is added to restrict rod protrusion, then contact sounds are reduced, but the device complexity increases
Solution Approach 1:
The flap element is segmented into distinct functional portions: a rod contact portion for interacting with the rod, a box contact portion for interacting with the box main body, and a biasing member portion. This segmentation allows each portion to perform its specific function efficiently while keeping the overall structure manageable and understandable.
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 mechanism effectively suppresses contact sounds and ensures the lid is reliably locked to the box main body, even during misoperations, by utilizing the flap element's higher biasing force to manage rod movement and prevent protrusions.
Implementation Method 1
a rod biasing member that biases the rod
Implementation Method 2
a flap biasing member that biases the flap main body in a direction in which the pressing inclined surface presses the pressure receiving inclined surface of the rod and having a higher biasing force than the rod biasing member
Data Source
AI summary
A lid mechanism includes: a box main body; a lid; a locking element that includes a rod and a rod biasing member; and a flap element that includes a flap main body and a flap biasing member and a box contact portion which is configured to come into contact with the box main body, wherein: when the state of the lid changes from the closed state to the opened state, the pressing inclined surface provided in the rod contact portion of the flap main body presses the pressure receiving inclined surface provided in the rod; and when the state of the lid changes from the opened state to the closed state, the box contact portion of the flap main body comes into contact with the box main body such that the pressing of the pressing inclined surface to the pressure receiving inclined surface is released.