Floating Card Tray Bolt Joint for Tilting Prevention
Solution Overview
Problem
Existing card tray designs for electronic devices often face issues with movement limitations and potential tilting due to fixed fastening methods, which can hinder balanced operation and flexibility in accommodating electronic cards.
Innovation Solution
A card tray design featuring a front door and a rear tray portion coupled in a floating manner using bolts or posts, allowing relative movement in x, y, and z directions, with a metallic piece and insulative front part configuration that includes legs and holes for balanced floating joint arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fixed fastening methods are used to join the front door and rear tray portion, then structural stability is improved, but movement flexibility and operational balance deteriorate
Solution Approach 1:
The patent applies the dynamics principle by transitioning from fixed fastening to floating fastening. The bolt connects the front door and rear tray portion through a floating mechanism that allows relative movement in x, y, and z directions while maintaining structural integrity. This enables the card tray to adapt to different positions and orientations during operation, resolving the contradiction between stability and flexibility.
2Stability of the object's composition
If fixed fastening methods are used to join the front door and rear tray portion, then structural stability is improved, but tilting prevention and operational balance worsen
Solution Approach 1:
The floating fastening mechanism allows the front door to move dynamically relative to the rear tray portion, preventing tilting by accommodating positional variations. The bolt connection maintains structural stability while enabling operational balance through controlled movement in multiple directions.
3Adaptability or versatility
If floating fastening is used to join the front door and rear tray portion, then movement flexibility is improved, but structural stability deteriorates
Solution Approach 1:
The bolt serves as an intermediary element between the front door and rear tray portion. It provides a floating connection that allows relative movement while maintaining structural integrity. The intermediary bolt enables both movement flexibility and structural stability simultaneously by mediating the connection between the two components.
4Adaptability or versatility
If floating fastening is used to join the front door and rear tray portion, then movement flexibility is improved, but structural strength deteriorates
Solution Approach 1:
The bolt acts as an intermediary that maintains structural strength while enabling floating movement. The connection design ensures that the structural strength is sufficient to support the card tray and electronic cards, while simultaneously allowing the necessary movement flexibility for balanced operation.
Data Source
AI summary
A card tray for an electronic device having a housing includes: a front door having an outer face and being adapted to be received in a slot opening of the housing; a rear tray portion configured to support an electronic card; and a bolt joining a rear end of the door and a front end of the tray portion together floatingly.



