Play Yard Clamp Structure for Secure Fabric Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable play yards and cribs lack a secure, aesthetically pleasing, and durable attachment mechanism for fabric enclosures to frame structures, often causing the fabric to stretch or tear during folding and unfolding, and may pose a risk of injury from external fasteners.
Innovation Solution
A clamp system is introduced where the fabric edge is inserted into an interior channel within the upright post, with a flag piece and locking piece providing a frictional engagement to maintain the fabric in place, ensuring a secure, stable, and visually appealing connection without external fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external fastening members such as screws, pins, nails, or staples are used to attach fabric to tubes, then the attachment is secure, but the risk of injury to children increases and the aesthetic appearance deteriorates
Solution Approach 1:
The attachment mechanism is nested within the tube structure itself. The fabric edge is inserted into a channel formed inside the tube, and a locking mechanism is positioned within the tube's interior space, eliminating the need for external fasteners that could injure children while maintaining secure attachment
Solution Approach 2:
The harmful external fastening members (screws, pins, nails, staples) are completely removed from the system. The attachment function is achieved through internal mechanisms only, extracting the dangerous elements while preserving the essential attachment functionality
2Strength
If fabric members are attached to upright tubes using conventional fastening methods, then the connection is strong, but the fabric stretches or tears when the playpen is folded or unfolded reducing durability
Solution Approach 1:
The attachment mechanism allows for dynamic movement during folding and unfolding operations. The fabric edge can slide within the tube's channel during folding, and the locking mechanism is designed to accommodate these movements without causing stress concentrations that would lead to fabric tearing
Solution Approach 2:
The internal channel structure provides a cushioning effect by allowing the fabric edge to be distributed along a longer path within the tube, preventing stress concentration at single attachment points during folding and unfolding cycles
3Object-affected harmful factors
If fabric edges are inserted into interior channels within upright posts, then the connection is aesthetically pleasing and safe from injury, but the attachment mechanism complexity increases
Solution Approach 1:
The attachment mechanism is merged with the tube structure itself. The channel, locking mechanism, and release features are integrated into the tube's design, eliminating separate external fastening components and reducing overall system complexity despite the internal complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a durable and secure attachment that maintains structural integrity and prevents fabric stretching or tearing, while eliminating the risk of injury from external fasteners, ensuring the enclosure remains stable and safe during use.
Implementation Method 1
A frictional engagement between the locking piece and the flag piece maintains the flag piece and the edge connected thereto within the interior channel
Data Source
AI summary
A foldable play yard apparatus is provided. The play yard includes a frame having a plurality of upright posts. The posts have a top, a bottom, and a clamp connected to at least one longitudinal side of the post. The play yard further includes a flexible enclosure having a plurality of edges inserted in the clamps to form walls between the upright posts. The clamp includes: a housing having an opening for receiving the edge of the enclosure and defining an interior channel within the housing; a flag piece, which is positioned in the interior channel of the housing, connected to the edge of the enclosure; and a locking piece positioned across the interior channel from the flag piece. A frictional engagement between the locking piece and the flag piece maintains the flag piece and the edge connected thereto within the interior channel.