Playpen Rail Positioning for Secure Removable Accessories
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Solution Overview
Problem
Conventional infant playpens face difficulties in securely attaching accessories like bassinets and changing stations due to their fabric-covered frames, which require complex attachment features and limit accessory orientation, making them inconvenient to use.
Innovation Solution
The infant playpen features multiple positioning regions on its upper side rail assemblies, allowing for the secure attachment of removable accessories in various configurations using a standardized connection mechanism, including a housing with a saddle portion and locking part, enabling easy installation and removal without disassembling the playpen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional attachment features are used on fabric-covered playpen frames, then accessories can be attached, but the attachment mechanism becomes complex and requires partial disassembly when accessories are removed
Solution Approach 1:
The playpen frame is divided into multiple positioning regions with standardized interfaces distributed along the upper side rail assemblies. Each positioning region contains engagement features that can independently receive accessories, allowing the attachment system to be segmented into multiple simple connection points rather than requiring a single complex attachment mechanism.
Solution Approach 2:
A universal standardized connection interface is implemented across all positioning regions on the playpen frame. This universal interface can accommodate different types of accessories (bassinets, changing stations, etc.) without requiring different attachment mechanisms, thereby simplifying the overall attachment system while maintaining reliability across multiple accessory types.
2Reliability
If conventional attachment features are used on fabric-covered playpen frames, then accessories can be attached, but the attachment mechanism limits accessories to one specific orientation
Solution Approach 1:
Multiple positioning regions are distributed along the upper side rail assemblies in different spatial locations and orientations. This dimensional distribution allows accessories to be attached at various positions and angles, providing orientation flexibility while maintaining secure attachment through the standardized interface design at each positioning region.
Solution Approach 2:
Each positioning region on the frame is equipped with standardized engagement features designed to accommodate accessories in multiple orientations. The local structure at each positioning region is optimized to provide secure attachment regardless of the accessory's orientation, allowing the same standardized interface to handle various attachment scenarios.
3Reliability
If separate attachment features are provided for different accessories on the playpen frame, then each accessory can be securely attached, but the overall attachment system becomes more complex
Solution Approach 1:
A single standardized connection interface design is implemented across all positioning regions on the playpen frame. This universal interface can securely attach different types of accessories (bassinets, changing stations, etc.) without requiring separate specialized attachment features for each accessory type, thereby reducing the overall complexity of the attachment system while maintaining secure attachment for all accessories.
Data Source
AI summary
An infant playpen includes a plurality of upright legs, and a first and a second upper side rail assembly supported by the upright legs. Each of the first and a second upper side rail assembly includes at least one elongated segment having an outer surface, and a plurality of positioning regions are defined on the outer surfaces of the elongated segments, each of the positioning regions being configured to locate a connection of a removable accessory on the infant playpen. An infant care system is also disclosed, which includes the infant playpen and a removable accessory installed thereon. One selected positioning region of the first upper side rail assembly can be received in a housing of the removable accessory, and a locking part of the removable accessory is displaced to a locked position that retains the selected positioning region in the housing.