Vehicle Seat Rotation-Displacement Coupling in Confined Spaces
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Solution Overview
Problem
Existing vehicle seats face limitations in confined spaces where rotation and longitudinal adjustment are independent, leading to potential damage from parts colliding with other fittings, as rotation is not adequately restricted, causing damage to components.
Innovation Solution
A vehicle seat design where the displacement position of the seat substructure support part is dependent on the rotation angle, and the rotation angle is dependent on the displacement position, allowing for integrated control of displacement and rotation, with stop elements interacting to limit movement and prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If rotation and longitudinal adjustment are designed independently, then the structure is simpler and operation is easier, but parts may collide with fittings causing damage
Solution Approach 1:
The patent combines the rotation adjustment mechanism and longitudinal displacement mechanism into an integrated system. The rotary unit and displacement device are coupled such that rotation and displacement are no longer independent operations. The coupling mechanism ensures that when the seat is rotated, the longitudinal position automatically adjusts to prevent collision with fittings, thereby maintaining structural simplicity while improving reliability.
Solution Approach 2:
The integrated control system incorporates feedback between the rotation angle and displacement position. Sensors or mechanical linkages detect the rotation state and automatically adjust the longitudinal position accordingly. This feedback mechanism prevents collision by continuously monitoring and adjusting the seat position based on the current rotation angle, resolving the contradiction between simple structure and damage prevention.
2Ease of operation
If rotation is allowed in confined spaces, then ease of operation is improved, but collision with fittings occurs causing damage
Solution Approach 1:
The system applies preliminary anti-action by pre-adjusting the longitudinal position before rotation occurs. When the seat approaches a rotation angle that would cause collision, the displacement device automatically moves the seat to a safe position in advance. This preventive mechanism allows rotation in confined spaces while avoiding collision with fittings, maintaining ease of operation without causing damage.
3Reliability
If displacement position depends on rotation angle, then collision is prevented, but device complexity increases
Solution Approach 1:
The patent introduces a coupling mechanism as an intermediary between the rotary unit and displacement device. This intermediary component translates rotation angle into corresponding displacement position automatically, eliminating the need for complex electronic control systems. The mechanical coupling serves as a mediator that implements the dependency relationship between rotation and displacement in a simple, reliable manner, preventing collision while minimizing added complexity.
Data Source
Figure 1
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Figure 3A~3B
AI summary
The invention relates to a vehicle seat comprising a seat section and a seat base support element arranged below the seat section, which is designed and configured to support the seat section, and a seat base base element, wherein the seat base support element is displaceable relative to the seat base base element along a displacement direction by means of a displacement device, and wherein a rotary unit is provided which is designed and configured to allow the seat section to rotate about a rotation axis relative to the seat base support element. According to the invention, when the seat base support element is displaced, its displacement position depends on the rotation angle of the rotary unit, and when the seat section is rotated, the rotation angle of the rotary unit depends on the displacement position of the seat base support element.