Vehicle Table Sliding Stopper Mechanism for Collision Impact Avoidance
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Solution Overview
Problem
Existing vehicle table devices pose a safety risk during collisions as they are fixed and can cause secondary impacts on passengers due to their structural characteristics, leading to potential injuries.
Innovation Solution
A table device for vehicles equipped with a sliding mechanism activated by stoppers that unlock and allow the table to move forward during a collision, utilizing a first stopper for upward and downward movement and a second stopper for rotational release, controlled by an airbag control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the table device is fixed in position, then the table provides stable support for passengers to use, but the table causes secondary impact on passengers during vehicle collision
Solution Approach 1:
The table device transitions from a fixed static structure to a dynamic structure with multiple stoppers that can sequentially release during collision. The first stopper releases the table from its fixed position, allowing it to move forward, while the second stopper controls the movement range. This dynamic behavior enables the table to adapt to collision conditions and avoid harmful secondary impact on passengers.
2Object-affected harmful factors
If the table device is made movable to avoid collision impact, then the safety of passengers is improved, but the structural complexity of the table device increases
Solution Approach 1:
The table device is segmented into multiple functional components: a first stopper for releasing the table from its fixed position, a second stopper for controlling the movement range, and a guide slot for directing the movement path. This segmentation allows each component to perform a specific function, achieving the safety goal while maintaining reasonable structural complexity through modular design.
3Object-affected harmful factors
If the table device includes multiple stoppers for collision protection, then the safety during collision is improved, but the ease of operation and maintenance deteriorates
Solution Approach 1:
The multiple stoppers are designed to automatically activate during collision without requiring manual intervention. The first stopper automatically releases when collision force is detected, and the second stopper automatically controls the movement range. This self-service mechanism maintains collision safety while avoiding the complexity of manual operation controls.
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
Prevents secondary impacts by allowing the table to slide forward, enhancing safety and preventing accidents by structurally avoiding contact with passengers.
Implementation Method 1
an elastic member configured to elastically support the body member on the mounting guide
Implementation Method 2
The second stopper is also configured to selectively rotate by a forward acceleration or force generated in the event of a vehicle collision
Data Source
AI summary
A table device for a vehicle includes: a table mounted on a fixing unit and provided to slide forward; a first stopper mounted on the fixing unit and configured to move up and down and to restrict a movement of the table; and a second stopper rotatably mounted on the fixing unit. The second stopper can latch to and be positioned on the first stopper to restrict upward and downward movements of the first stopper. The second stopper is configured to selectively rotate by a forward acceleration or force generated in an event of a vehicle collision to be released from the latching of the first stopper.