Seatback Cover Anchoring Structure for Thinner Vehicle Seats
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Solution Overview
Problem
Existing vehicle seat designs have a large number of components, which complicates the anchoring of vertical cores to the seatback frame and increases the risk of detachment, while also maintaining a thick seatback and limited legroom.
Innovation Solution
A vehicle seat design featuring a framework member, center rear face cover, side rear face covers, an anchor member, and a restraining portion that secures the overlap portion to the framework member, reducing the thickness of the seatback and improving its appearance by eliminating the horizontal joining pole and enhancing assembly characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vertical cores are anchored to the seatback frame using a horizontal joining pole and tying members, then the anchoring structure is established, but the number of components increases and the risk of detachment increases
Solution Approach 1:
The patent integrates the anchor member and restraining portion into a unified structure that directly connects the seatback cover to the seatback frame. The restraining portion is formed as an integral part of the seatback cover, eliminating the need for separate horizontal joining poles and tying members, thereby reducing component count while maintaining anchoring reliability
Solution Approach 2:
The patent removes the horizontal joining pole from the anchoring system, extracting this intermediate component entirely. The anchor member now connects directly to the framework member through the restraining portion, simplifying the structure while achieving the same anchoring function with fewer parts
2Shape
If the seatback is curved forward to improve appearance and reduce thickness, then aesthetic quality and legroom are improved, but the structure becomes more complex and anchoring becomes more difficult
Solution Approach 1:
The patent implements a curved seatback design where the seatback cover is formed with a forward curvature that follows the contour of the underlying framework. This curvature is achieved through the flexible nature of the cover material and the positioning of the restraining portion, allowing aesthetic improvement without significantly complicating the structural design
Solution Approach 2:
The seatback cover is designed as a flexible shell that can be molded into curved shapes. This flexibility allows the cover to conform to the desired curved appearance while being easily attached to the framework through the anchor member and restraining portion, avoiding the need for complex rigid structural components
Data Source
AI summary
There is provided a vehicle seat including: a framework member that structures a framework of a seatback; a center rear face cover that structures a central portion of a rear face of the seatback; a side rear face cover that structures the seat width direction side portion; an overlap portion at which an end portion of the center rear face cover and an end portion of the side rear face cover are sewn together in an overlapping state, and extending to a seat forward side; an anchor member that is disposed at the overlap portion and that is anchored at the framework member and pulls the overlap portion in to the seat forward side; and a restraining portion that joins at least one of the overlap portion and the anchor member to the framework member, and restrains movement of the overlap portion.