Vehicle Seat Back Fastener Layout to Prevent Gaps and Noise
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Solution Overview
Problem
Existing vehicle seat designs with fastener members suffer from aesthetic deterioration and noise generation due to the complex process of accommodating the end portion of the fastener member between the cushion and skin materials, leading to instability and potential gaps.
Innovation Solution
A vehicle seat configuration that incorporates a sheet-shaped carpet member with higher rigidity, which is rotatable and includes an extended section to securely insert the end portion of the fastener member between the cushion and skin materials, stabilizing the slider member and preventing gap formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the end portion of the fastener member is bent inside to be accommodated between the cushion material and the skin material, then the fastener member is hidden, but the aesthetics of the seat deteriorates due to skin material being wound up forming triangular gaps
Solution Approach 1:
A carpet member with extended section is introduced as an intermediary component between the fastener member and the skin material. The extended section receives and accommodates the end portion of the fastener member, preventing skin material from being wound up while maintaining a clean appearance. This mediator resolves the conflict between hiding the fastener and maintaining aesthetics.
2Reliability
If the slider member is moved between the cushion material and the skin material, then the fastener pieces are coupled, but the slider member becomes unstable generating noises
Solution Approach 1:
The extended section of the carpet member serves as a stable intermediary platform for the slider member. By providing a dedicated accommodation space with appropriate friction characteristics, the extended section stabilizes the slider member during operation, preventing it from moving uncontrollably between cushion and skin materials, thereby eliminating noise generation.
3Ease of manufacture
If the end portion of the fastener member is accommodated between the cushion material and the skin material, then the seam is closed, but the process becomes complicated requiring sewing the slider member to the back surface of the skin material
Solution Approach 1:
The carpet member with extended section is attached to the first skin section and provides a built-in accommodation mechanism for the fastener member end portion. This eliminates the need for complex sewing operations to secure the slider member to the skin material back surface, simplifying the manufacturing process while maintaining effective fastener accommodation.
Data Source
AI summary
A vehicle seat includes a seat cushion and a seat back. The seat back includes a skin material including first and second skin sections which cover a rear surface and a side surface therefore, respectively, and a fastener member which couples the first and second skin sections. The first skin section is attached with a carpet member at an end portion thereof. The carpet member has a higher rigidity than the first skin section and being movable between a first position and a second position. The carpet member includes an extended section which faces the end portion of the fastener member at the second position. The end portion of the fastener member is attached to the extended section, and when rotating the carpet member into the first position, the extended section is inserted between the cushion material and the skin material with the end portion of the fastener member.