Rear Seat Console Rail Layout for Reclining and Easy Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle seats in the second rear seat row of a passenger vehicle are limited in adjustability, preventing them from being used as reclining or resting seats due to transverse body reinforcements and retracted wheel housings, which restrict the inclination angle of the backrest and make it difficult to position seats closer to the vehicle center.
Innovation Solution
A vehicle seat console that allows the rear seat to be displaced and adjusted using a combination of longitudinal and transverse rail arrangements, enabling it to be raised and inclined, thereby overcoming the obstacles posed by body reinforcements and wheel housings, allowing the seat to transition into a reclined or resting position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rear seat is positioned closer to the vehicle center and raised, then the seat can be adjusted into reclined or resting position, but entry and exit becomes more difficult
Solution Approach 1:
The patent implements a dynamic positioning system where the rear seat can be displaced in two directions: longitudinally along guide rails and transversely via a lifting device. This dynamic adjustment allows the seat to transition between a raised position (for reclining capability) and a lowered position (for easier entry/exit), resolving the contradiction between adaptability and ease of operation
Solution Approach 2:
The patent adds a vertical dimension to seat positioning by introducing a lifting device that moves the seat between a first position (lowered) and a second position (raised). This dimensional change enables the seat to achieve both reclining capability when raised and easier access when lowered, simultaneously satisfying both requirements
2Adaptability or versatility
If the backrest inclination angle is increased for reclined position, then passenger comfort is improved, but the backrest collides with transverse body reinforcements and wheel housings
Solution Approach 1:
The patent applies preliminary action by raising the seat to a higher position before inclining the backrest. This sequence of operations ensures that the backrest clearance path is established in advance, allowing the backrest to be inclined past the wheel housing and body reinforcements without collision, thus achieving greater inclination range without obstruction
3Ease of operation
If the seat is kept in normal upright position, then entry and exit is easier, but the seat cannot be adjusted into reclined or resting position
Solution Approach 1:
The patent creates a dynamic system where the seat position is not fixed but can be adjusted between multiple states. The lifting device enables transitions between upright position (for easy access) and raised position (for reclining), while the guide rails allow longitudinal movement. This dynamic capability resolves the contradiction by allowing the system to adapt to different operational requirements
Data Source
AI summary
A vehicle seat base, also known as a console, movably attaches a vehicle seat on a vehicle interior floor. The vehicle seat is movably arranged parallel to the vehicle longitudinal direction and parallel to the vehicle lateral direction via a first rail assembly running parallel to the vehicle longitudinal direction and a second rail assembly running parallel to the vehicle lateral direction. The vehicle interior floor has a step running in the vehicle lateral direction that divides the floor in the vehicle longitudinal direction into a first floor region lying at a lower height and a second floor region lying at a higher height, and the floor is constricted by wheel housings that penetrate into the floor from the respective exterior, behind the vehicle seat. The second rail assembly ascends towards the vertical vehicle longitudinal central plane from the vehicle exterior running parallel to the vehicle longitudinal direction.