Luggage Screen Auto Return via Gravity Locking
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Solution Overview
Problem
The existing luggage room screen structure requires manual locking and unlocking of the reinforcement board to the guide groove, which can be cumbersome for users and may cause the board to get caught, hindering smooth return of the screen.
Innovation Solution
An auto return structure featuring a guide portion with a guide groove, movement groove, and locking protrusion on the luggage side trim, allowing the reinforcement board to guide and lock the screen for automatic return, with inclined surfaces and support portions to facilitate smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reinforcement board is manually locked to the stepped portion of the guide groove, then the screen can be held in the drawn-out position, but the user operation becomes cumbersome and the board may get caught in the guide groove
Solution Approach 1:
The reinforcement board is designed with a center of gravity offset upward from the locking protrusion, enabling it to automatically lock into the stepped portion and automatically return to the retracted position without manual intervention. The board's own weight and gravity create the self-locking and self-return mechanism, eliminating the need for manual locking operations.
Solution Approach 2:
The guide groove is pre-formed with a stepped portion at the end that serves as an automatic locking position. When the reinforcement board is drawn out, it automatically engages with this pre-positioned stepped portion, ensuring reliable holding without requiring the user to perform locking actions.
2Ease of operation
If the reinforcement board end portion is inserted into the guide groove, then the screen can be drawn out, but the board may get caught and disturb smooth return
Solution Approach 1:
The guide groove is segmented into two distinct portions: a movement groove for smooth insertion and drawing-out, and a stepped portion for automatic locking. This segmentation allows the reinforcement board to move smoothly during extension while automatically locking at the destination, preventing it from getting caught and ensuring reliable return.
3Device complexity
If a simple guide groove is used, then the structure is simple, but the reinforcement board cannot be automatically locked or returned
Solution Approach 1:
The guide groove incorporates a stepped portion that creates dynamic locking and unlocking behavior. As the reinforcement board is drawn out, it automatically locks into the stepped portion; when released, it automatically returns to the retracted position. This dynamic mechanism achieves automatic locking and return without adding complex mechanical components.
Data Source
AI summary
An auto return structure of a luggage room screen may include a guide portion formed to a luggage side trim toward the rear of a vehicle body, and a reinforcement board wherein the guide portion includes a guide groove formed to the luggage side trim toward the rear of the vehicle body and slidably receiving an end portion of the reinforcement board therein, a movement groove formed to connect from ends of the lower and upper surfaces of the guide groove toward an upper part of the vehicle body to guide the end portion of the reinforcement board toward the upper part of the vehicle, and a locking protrusion formed on an upper connection portion connecting the movement groove and the upper surface of the guide groove and to which the end portion of the reinforcement board may be selectively inserted and fixed.