Sliding Front Seat Structure for Rear Passenger Access
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Solution Overview
Problem
Existing vehicles with motorcycle-like seating arrangements face difficulties in passenger access and safety, particularly when a rigid roof or trunk is present, lacking backrests and safety belts, compromising comfort and increasing injury risk.
Innovation Solution
A vehicle structure with a slidable and tiltable front seat that locks to the rear seat in a rearward position for stability and unlocks to create an access space, featuring a releasable locking device and an electric actuator for customizable positioning, along with safety features like airbags and a video camera system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the front seat is fixed in a rearward position to maintain structural stability and passenger safety, then safety and stability are improved, but passenger access to the rear seat becomes difficult
Solution Approach 1:
The front seat is designed to be movable between a rearward position (for safety/stability) and a forward position (for passenger access). The seat can be slid forward along a guide and locked, or moved backward to contact and lock with the rear seat frame, allowing the system to dynamically adapt between conflicting requirements
Solution Approach 2:
The seating system is divided into separable components: the front seat, the rear seat frame, a guide mechanism, and a locking device. This segmentation allows the front seat to be independently positioned and locked in different configurations to resolve the contradiction between stability and accessibility
2Ease of operation
If the front seat is made slidable to facilitate passenger access, then ease of operation is improved, but structural stability and safety may be compromised
Solution Approach 1:
The front seat transitions from a static fixed position to a dynamic movable position, sliding forward along a guide to create access space. The locking device ensures that when positioned, the seat maintains structural integrity and safety
Solution Approach 2:
A locking device acts as an intermediary between the movable front seat and the rear seat frame, providing a secure connection that maintains structural stability while allowing the seat to be repositioned for passenger access
3Reliability
If a rigid roof or object-holder trunk is added to improve vehicle structure and safety, then safety is improved, but passenger access becomes more difficult
Solution Approach 1:
The front seat is designed to slide forward along a guide when passenger access is needed, dynamically creating space beneath the rigid roof or trunk structure. This allows the rigid structure to remain for safety while the seat position adapts to facilitate access
4Volume of moving object
If the front seat is positioned rearward to maximize passenger space and safety, then safety and space are improved, but passenger access to the rear seat becomes difficult
Solution Approach 1:
The front seat can be dynamically repositioned from a rearward position (maximizing passenger space) to a forward position (facilitating access). The locking mechanism allows the seat to be securely held in either configuration based on operational needs
Data Source
AI summary
Vehicle structure includes a front seat for a driver and a rear seat for a passenger aligned with each other. The front seat is slidable and/or tiltable between a rearward position, in which it is rigidly secured to the frame of the rear seat by a releasable locking device, and a forward position, in which a gap is formed between the front seat and the rear seat to facilitate the access and exit of the passenger.