Vehicle Table Shield Mechanism for Sudden Braking Object Restraint
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Solution Overview
Problem
Existing vehicle table devices fail to effectively prevent objects from popping out and hitting occupants during sudden braking or collisions due to inertial forces, as they lack adequate mechanisms to suppress objects from moving forward or rearward.
Innovation Solution
The implementation of a pop-out suppression unit with a movable shield portion and guide mechanism that bends and protrudes upward to intercept objects attempting to pop out, combined with a return restriction unit to maintain the shield's position and a detection system for enhanced deployment during collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a table device is provided in a vehicle for placing objects, then occupants can conveniently place small objects, but objects may pop out from the table during sudden braking or collision due to inertial force
Solution Approach 1:
A shield portion is introduced as an intermediary element between the table surface and the potential hazard zone. The shield portion moves in response to vehicle acceleration and physically blocks objects from popping out, serving as a mediator that prevents direct contact between objects and occupants during sudden braking or collision
Solution Approach 2:
The shield portion is designed to be movable rather than fixed, allowing it to dynamically respond to vehicle acceleration conditions. The shield moves forward during sudden braking or collision to intercept objects, and returns to its original position during normal driving, adapting its position based on real-time vehicle dynamics
2Object-affected harmful factors
If a shield portion is added to suppress objects from popping out, then object safety is improved, but device complexity increases
Solution Approach 1:
The shield portion utilizes the vehicle's own acceleration forces to activate its protective function. During sudden braking or collision, the inertial force generated by the vehicle's deceleration automatically moves the shield forward to block objects, eliminating the need for external power sources or complex control systems
Solution Approach 2:
The shield portion's position parameter changes dynamically based on vehicle acceleration conditions. The shield transitions between a retracted state during normal driving and an extended protective state during sudden braking or collision, with its position determined by the magnitude and direction of vehicle acceleration
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
Effectively suppresses objects from hitting occupants by ensuring the shield portion is positioned to intercept and absorb the impact, maintaining its upward position to prevent injuries and utilizing detection systems for timely deployment.
Implementation Method 1
movable toward the front side in the vehicle front-rear direction at an acceleration equivalent to an acceleration of the object, by an inertial force during a sudden braking or a front collision
Implementation Method 2
A front end portion of the table main body may be provided with a guide portion that guides the shield portion upward while applying a tensile force to the lower surface side of the shield portion
Implementation Method 3
The shield portion may be made of a member having no elasticity on an upper surface side and a member having elasticity on a lower surface side, and may be configured to bend toward the upper surface side when a tensile force is applied to the lower surface side and to return to a straight line shape when the tensile force is released
Data Source
AI summary
The present disclosure relates to a vehicle table device provided between a front row seat and a rear row seat arranged to be aligned in a vehicle front-rear direction in a vehicle cabin. A table main body capable of placing an object on an upper surface thereof, and a pop-out suppression unit for preventing the object from popping out from the table main body, which has a shield portion protruding upward like a screen from a front end portion of the table main body when an acceleration such that the object pops out from the table main body to the front side in the vehicle front-rear direction occurs at the time of sudden braking or front projection.