Vehicle Seat Side Frame Bracket Layout for Recliner Shaft Clearance
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Solution Overview
Problem
Existing seat frames for vehicle seats face challenges in easily attaching an actuator bracket without interfering with the reclining mechanism's shaft, while also reducing the number of components, stabilizing the positional relation of actuator and shaft, and improving the rigidity of the bracket.
Innovation Solution
A seat frame configuration that includes a side frame with a reclining mechanism and an actuator, where the actuator is fixed to an attachment bracket bonded to the side frame's inner surface, avoiding interference with the reclining mechanism's shaft. The attachment bracket is designed with a C-shape following the outer edge of the reclining mechanism's attachment area, and is integrated with a connection frame to reduce components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a reinforcement bracket is bonded to the side frame to stabilize the actuator position, then the positional stability is improved, but the shaft of the reclining mechanism may interfere with the bracket
Solution Approach 1:
The bracket is divided into an upper portion and a lower portion that are separated in the front-to-back direction, allowing the shaft to pass through the space between them without interference while maintaining positional stability
Solution Approach 2:
The bracket portions are arranged in the front-to-back direction (depth dimension) rather than only in the vertical direction, creating spatial separation that accommodates the shaft while providing stable positioning
2Device complexity
If the number of components is reduced to simplify the structure, then the device complexity is reduced, but the rigidity of the bracket may deteriorate
Solution Approach 1:
The upper and lower bracket portions are integrated into a single piece that is directly bonded to the side frame, eliminating the need for separate connection components while maintaining structural rigidity through the distributed bonding arrangement
3Strength
If the welding area is enlarged to improve bonding strength, then the bonding strength is improved, but the positional relation between actuator and shaft may vary
Solution Approach 1:
The welding area is strategically positioned in the vertical direction at locations that provide both strong bonding and stable positional reference, while the front-to-back separation of bracket portions ensures shaft position stability is not compromised
Data Source
AI summary
A bracket for attaching an actuator is easily bonded to a side frame while avoiding interference with a shaft for driving a reclining mechanism. In a seat side frame which is provided at each of both ends of a seat back frame in the width direction, a reclining mechanism, and an actuator, the reclining mechanism is attached to a side wall of the side frame, and the actuator is fixed to an attachment bracket bonded to an inner surface of a portion to which the reclining mechanism is attached in the side wall in the width direction. An upper portion which is disposed above the attachment portion of the reclining mechanism and a lower portion which is disposed below the attachment portion thereof are connected to each other at the rear ends thereof and are separated from each other at the front ends thereof.