Vehicle Seat Rotating Structure With Low-Height Detachment Latch
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Solution Overview
Problem
Existing vehicle seat rotating devices face challenges in reducing height increase due to detachment suppression mechanisms, entry of foreign matter into rotation mechanisms, increased height from electrical components, and wire damage during seat rotation.
Innovation Solution
The rotating device incorporates latching and engagement means disposed outside the rotating member, covers the rotating member's periphery, houses electrical components compactly, and retains wires centrally to prevent height increase and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detachment suppression means is added to the rotating device, then the reliability of suppressing detachment is improved, but the height of the device increases
Solution Approach 1:
The engagement means is disposed inside the rotating member, utilizing the internal space of the rotating member to house the detachment suppression mechanism. This nesting approach allows the latching means and engagement means to be integrated within the existing structure without adding external height to the device.
Solution Approach 2:
The latching means and engagement means are disposed further inside than the rotating member in plan view, transitioning the detachment suppression mechanism from a vertical arrangement (which would increase height) to a horizontal/radial arrangement within the rotating member's internal space.
2Ease of operation
If the rotation mechanism is exposed for ease of operation, then the ease of operation is improved, but foreign matter can enter the rotation mechanism
Solution Approach 1:
A cover member made of a flexible or thin material is used to cover the periphery of the rotating member. This cover prevents foreign matter from entering the rotation mechanism while still allowing the rotation operation to proceed, as the cover can accommodate the rotational movement.
Solution Approach 2:
The cover member acts as an intermediary barrier between the external environment and the rotation mechanism. It mediates between the need to protect the mechanism from foreign matter and the need to allow rotation operation, providing a protective layer that does not completely seal the mechanism.
3Adaptability or versatility
If electrical components are added to the rotating device, then the functionality is improved, but the height of the device increases
Solution Approach 1:
Electrical components are disposed inside the rotating member, utilizing the internal space already available within the rotating member's structure. This nesting approach allows the addition of electrical functionality without increasing the external height of the device.
Solution Approach 2:
The rotating member is designed to serve multiple functions: it provides the rotational movement, houses the detachment suppression mechanism, and now also accommodates electrical components. This multi-functionality allows the device to gain enhanced functionality without proportionally increasing its size.
4Adaptability or versatility
If wires are routed during rotation, then the adaptability to rotation is improved, but the wires can be damaged
Solution Approach 1:
An electric wire retaining member is introduced as an intermediary to manage the wires during rotation. This retaining member guides and secures the wires, allowing them to move with the rotation while preventing them from becoming tangled, pinched, or damaged by moving parts.
Solution Approach 2:
The electric wire retaining member is designed to automatically guide and protect the wires during rotation without requiring external intervention. The retaining member's structure naturally accommodates the wire movement during rotation, providing continuous protection as the system operates.
Data Source
AI summary
A rotating device for a vehicle interior item is provided with latching means that is provided on a side of a base member having a rotation support part, and engagement means that is provided on a side of a rotating member supporting a vehicle interior item and being rotatably supported by the rotation support part, and can be switched between a state in which the engagement means engages with the latching means so as to suppress detachment of the rotating member from the base member and a state in which the engagement with the latching means is released when the rotating member attains the rotatable state, wherein the latching means and the engagement means are disposed further outside than the rotating member in plan view at least when the rotating member is in the non-rotating state. Accordingly, it is possible to suppress an increase in the height while suppressing detachment when the vehicle interior item is not rotating.