Vehicle Seat Skin Attachment Using Fold-Back Connection Structure
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Solution Overview
Problem
Existing vehicle seat designs face challenges in efficiently attaching and detaching the skin cover, often requiring significant labor and risk of damage due to the need for specialized tools and deformation of components, especially with curved and flexible materials.
Innovation Solution
A vehicle seat design featuring a connection structure with fold-back portions on both the skin and substrate, allowing for easy attachment and detachment through a protruding member with a shaft and heat portion, and a knob for secure engagement, reducing the need for specialized tools and simplifying the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resin clip with a cross section having a fold-back portion is used for fixation, then the skin can be firmly fixed to the substrate, but removal of the clip may cause damage to the mating component or the clip itself and requires specialized tools and adjusted applied force
Solution Approach 1:
The connection structure is divided into two independent parts: a fold-back portion on the skin and a corresponding fold-back portion on the substrate. These segmented parts can engage with each other to provide firm fixation while allowing independent movement for easy attachment and detachment without requiring specialized tools.
Solution Approach 2:
Instead of using a rigid clip that requires forceful removal, the invention inverts the approach by using flexible fold-back portions that naturally engage and disengage. The connection is maintained through the elastic recovery of the folded portions rather than through rigid mechanical interlocking that requires tools for removal.
2Reliability
If a slip-off stopping piece with largely curved shape is inserted into the joined part between backrest and seat section, then the connection can grip firmly in the front-to-rear direction, but a great deal of labor is needed for the insertion operation
Solution Approach 1:
The fold-back portions are designed to automatically engage with each other when the skin is attached to the substrate. The elastic nature of the folded portions allows them to self-lock into place without requiring manual insertion force or specialized tools, thereby improving operation efficiency while maintaining reliable grip.
3Manufacturing precision
If the protrusion is inserted rearward from the joined part while largely deforming the connection part, then the slip-off stopping piece can be positioned correctly, but the member is squeezed into narrow space requiring significant labor
Solution Approach 1:
The invention changes the physical state of the connection structure by using flexible fold-back portions that can elastically deform during attachment and then recover to their original shape. This allows the connection parts to be positioned accurately without requiring forceful squeezing or deformation, as the flexible material naturally conforms to the required position and locks in place through elastic recovery.
Data Source
AI summary
A seat for vehicle includes a skin, a substrate to which the skin is applied, and a connection structure for connecting the substrate and the skin. The skin includes a first skin part, and a second skin part made of a soft material for connecting the first skin part and the connection structure. The connection structure includes a first fold-back portion integrally formed with the second skin part, and a second fold-back portion disposed on the substrate. The first fold-back portion is fitted with the second fold-back portion.