Convertible Seat Backrest Pivot Structure for Wind Deflection
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Solution Overview
Problem
Convertible motor vehicles experience air draughts and whirlwinds inside the passenger compartment, especially at high speeds, and existing solutions like wind deflectors require storage space and complex installation/removal processes.
Innovation Solution
A motor vehicle seat with a mechanism that allows the backrest to pivot from a vertical to a horizontal position, serving as both a seat and a wind deflector, eliminating the need for a separate wind deflector and providing adjustable space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate wind deflector is provided, then air draughts and whirlwinds are reduced, but interior space is consumed and device complexity increases
Solution Approach 1:
The backrest is designed to serve dual functions: as a seating support in normal operation and as a wind deflector when positioned vertically. This eliminates the need for a separate wind deflector and its associated storage compartment, directly resolving the space consumption issue while maintaining the ability to protect against air draughts
2Object-affected harmful factors
If a separate wind deflector is provided, then air draughts and whirlwinds are reduced, but device complexity and ease of operation worsen
Solution Approach 1:
The wind deflector function is merged with the backrest structure itself. The backrest can be pivoted between a horizontal seating position and a vertical wind deflector position, eliminating the need for separate installation and removal operations. This single integrated structure significantly reduces device complexity and simplifies operation
Solution Approach 2:
The backrest serves as both the seat back and the wind deflector, eliminating the need for separate operations to install and remove a dedicated wind deflector. The dual-function design reduces the number of components and operational steps required
3Adaptability or versatility
If backrest is made movable between positions, then versatility improves, but device complexity increases
Solution Approach 1:
The backrest is designed with movable capability, allowing it to transition between a horizontal position for seating and a vertical position for wind deflection. This dynamic positioning capability enables the single structure to perform multiple functions, achieving versatility without requiring completely separate components for each function
Data Source
AI summary
A motor vehicle seat includes a backrest portion, a first body, a second body and a mechanism configured to coupled the backrest portion to the first body in a movable manner between a first position, in which the backrest portion is arranged between the first and the second body, the latter defining a base extending crosswise to the backrest portion in order to support a passenger seating with the back resting against the backrest portion on a first surface of the backrest portion, and a second position, in which the backrest portion has a second surface opposite the first surface and facing the second body; wherein the first surface, in the second position of the backrest portion, defines a wind deflector.