Vehicle Seat with Dynamic Back and Movable Wall for Easy Entry
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Solution Overview
Problem
Existing vehicle seats are inconvenient for passengers to get on or off vehicles due to the design of the vertically oriented back portion and horizontally situated seat portion, which can cause abrasion and difficulty in accessing the seat.
Innovation Solution
The vehicle seat incorporates driving assemblies with sensing units, controlling units, and driving units, including motors and gear members, that adjust the position of the back and seat portions in response to the door state, allowing for easier access by aligning the movable portions with the resisting and bottom walls when the door is opened.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the back portion and seat portion are designed with higher sides for passenger protection, then safety is improved, but ease of entry and exit deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the back portion and seat portion movable rather than fixed. The driving assembly enables these components to dynamically adjust their positions - tilting backward and lowering when the door is open to facilitate easy entry/exit, and returning to protective positions when the door is closed. This resolves the contradiction by allowing the structure to adapt its configuration based on operational requirements.
2Reliability
If the back portion and seat portion are positioned higher for safety, then protection is improved, but accessibility deteriorates
Solution Approach 1:
The patent applies preliminary action by having the driving assembly automatically adjust the back portion and seat portion positions in advance based on door state detection. When the door opens, the system proactively tilts and lowers the seat components to create easy access, and when the door closes, it restores the protective configuration. This anticipatory adjustment resolves the contradiction between protection and accessibility.
3Stability of the object's composition
If fixed high-positioned back and seat portions are used, then structural stability is improved, but adaptability deteriorates
Solution Approach 1:
The patent transforms the fixed structural components into dynamic, adjustable elements. The back portion and seat portion are equipped with driving mechanisms that enable them to change positions between a stable, protective configuration (when door is closed) and an accessible configuration (when door is open). This dynamic capability allows the structure to maintain stability when needed while adapting to different operational states.
Data Source
AI summary
A vehicle seat includes a back portion, a seat portion, and two driving assemblies. The back portion includes a resisting portion and a movable portion. The seat portion is coupled to the back portion and includes a bottom wall and a movable wall. One driving assembly is positioned in the back portion and the other driving assembly is positioned in the seat portion. The driving assembly positioned in the back portion is coupled to the movable portion and is configured to drive the movable portion to move relative to the resisting portion. The driving assembly positioned in the seat portion is coupled to the movable wall and is configured to drive the movable wall to move relative to the bottom wall.