Seat Trim Cover Hook Structure for Closing Skin Joint Gaps
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Solution Overview
Problem
Existing trim cover designs for vehicle seats often result in a gap between joined end portions, exposing the pad inside the cover and complicating the joint operation, and may not effectively close the gap to prevent pad exposure.
Innovation Solution
A trim cover design featuring a hook with a base portion and a lock portion, where the first end portion is wider and includes a fixed portion and a folded portion that protrudes towards the lock portion, facilitating easier joint operation and closing the gap between the end portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hook is used to join the end portions of the skin, then the opening is closed, but a gap is formed between the end portions causing the pad to be exposed
Solution Approach 1:
The invention extends the solution from a single-plane hook connection to a three-dimensional configuration by adding a folded portion that protrudes toward the lock portion. This folded portion fills the gap between end portions in the width direction, preventing pad exposure while maintaining the hook's closing function.
Solution Approach 2:
The first end portion is divided into multiple functional segments: a fixed portion that is sewn to the base portion, and a folded portion that protrudes to fill the gap. This segmentation allows each part to perform its specific function - the fixed portion provides secure attachment while the folded portion prevents pad exposure.
2Reliability
If the end portions are joined through a hook, then the opening is closed, but the joint operation becomes complicated
Solution Approach 1:
The folded portion is pre-formed and positioned to protrude toward the lock portion before the actual joining operation. This preliminary configuration simplifies the assembly process by guiding the second end portion into place and reducing the complexity of the joint operation.
Data Source
AI summary
A trim cover for covering a pad, includes a hook and a skin, wherein: the hook includes: a base portion to which a first end portion of the skin is fixed; and a lock portion that is connected to the base portion and into which a second end portion of the skin is inserted; the first end portion includes: a fixed portion that is fixed to the base portion to be overlapped with a front surface of the base portion; and a folded portion that is folded toward a rear surface of the base portion along an edge of the base portion on a side opposite to the lock portion; and both side portions of the folded portion are arranged to protrude toward the lock portion and arranged to be overlapped with the lock portion and protrude to the outside in the width direction from the lock portion.