Playpen Fabric Fastening Structure for Easy Frame Attachment
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Solution Overview
Problem
Conventional playpens have an inconvenient mechanism for removing and reattaching the fabric enclosure from the frame, requiring loosening screws and spacers, which complicates the assembly and disassembly process.
Innovation Solution
A fixing device comprising fixing plates with engaging holes and foot members with plate-receiving holes and tongues allows for easy attachment and detachment of the fabric enclosure to the playpen frame, enabling simple assembly and removal by inserting and pulling out the fixing plates from the foot members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws and spacers are used to connect the fabric enclosure to the frame, then the connection is secure and reliable, but the assembly and disassembly process becomes complex and inconvenient
Solution Approach 1:
The fixing device is divided into separate components: foot members attached to the frame, fixing plates attached to the fabric enclosure, and tongues that connect them. This segmentation allows each component to be independently attached and simplified for specific functions, improving both reliability of connection and ease of assembly/disassembly operations
Solution Approach 2:
The tongue of the foot member is inserted into the fixing plate, creating a nested connection structure. The fixing plate has a receiving structure that accommodates the tongue, forming a nested arrangement that provides secure connection while allowing simple insertion and removal actions
Data Source
AI summary
A playpen includes a top frame, pairs of supporting legs in which the supporting legs of each pair have top ends connected to the top frame at two spaced apart positions and bottom ends extending toward each other, and a fabric enclosure having a lower portion and an upper portion which is attached removably to the top frame. A fixing device includes a plurality of fixing plates adapted to be fixed to the fabric enclosure and each having an engaging hole, and a plurality of foot members each having top and bottom ends, a plate-receiving hole opening at the top end and extending downwardly for insertion of a corresponding fixing plate, two leg-receiving holes for insertion of the bottom ends of one pair of the supporting legs, and a tongue for engaging detachably the engaging hole disposed within the plate-receiving hole.