Seat Cushion Trim Cover Fixing Structure Without Extra Fasteners
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Solution Overview
Problem
Conventional methods for fixing trim cover attachment members on vehicle seats involve additional components like adhesives or hook-and-loop fasteners, increasing costs and requiring labor-intensive processes.
Innovation Solution
A fixing structure using a belt-like member and engagement portion with an insertion hole, allowing for secure attachment without additional fasteners by inserting and engaging the insertion portion into the hole, simplifying the process and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual attachment members are bonded together or firmly fixed using a hook-and-loop fastener, then the trim cover is securely attached to the seat cushion, but additional members (adhesive material or hook-and-loop fastener) are required, increasing cost and manufacturing time
Solution Approach 1:
The patent combines the attachment member and the fixing mechanism into a single integrated belt-like member. The engagement portion is formed as an integral part of the belt-like member itself, eliminating the need for separate adhesive materials or hook-and-loop fasteners. This merging of components directly reduces device complexity while maintaining secure attachment through the insertion portion-engagement portion interface.
2Reliability
If individual attachment members are bonded together with an adhesive material, then the trim cover is securely attached, but the attachment members need to be held together until completely bonded, requiring time and labor
Solution Approach 1:
The patent replaces the chemical bonding process (adhesive curing) with a mechanical interlocking mechanism. The insertion portion is inserted into the engagement portion to form a mechanically interlocked connection that provides immediate secure attachment without requiring holding time for adhesive curing. This substitution eliminates the time-consuming bonding process while maintaining reliable attachment.
3Reliability
If additional members such as adhesive material or hook-and-loop fastener are used for firm fixation, then the trim cover is securely attached, but the manufacturing process becomes more labor-intensive
Solution Approach 1:
The patent extracts and eliminates the additional members (adhesive materials, hook-and-loop fasteners) from the attachment system. The belt-like member is designed with an integrated engagement portion that provides all necessary fixing functionality, removing the need for separate components and simplifying the manufacturing process to a single insertion operation.
Data Source
AI summary
A structure for firmly fixing individual attachment members to each other when a trim cover is attached to a seat cushion is simplified to be able to contribute to a cost reduction. A fixing structure for a trim cover in a vehicle seat includes a belt-like member protruding from the trim cover, an engagement portion provided in a portion of the trim cover other than the belt-like member, an insertion portion provided in either one of an end portion of the belt-like member and the engagement portion, and an insertion hole provided in another of the end portion of the belt-like member and the engagement portion to allow the insertion portion to be inserted therein and maintain a state where the insertion portion is inserted therein, thereby achieving a state where the vehicle seat is covered with the trim cover to be fixed.