Extension Arm Rail Mount for Easy Display Angle Adjustment
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Solution Overview
Problem
Conventional extension arm support devices require significant user effort to adjust the angular position of display devices due to the need for high friction between the adaptor and upright post, making it inconvenient to release and reattach the adaptor.
Innovation Solution
The extension arm support device features an adaptor module with anchored rails and anchoring members that allow for slidable engagement with the extension arm, enabling easy attachment and detachment without removing the adaptor from the upright post, utilizing a quick-release fastener and elastomeric retaining enhancing member for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the adaptor is retained on the upright post with large friction, then the support stability is improved, but the ease of operation deteriorates because the user must take much effort to release the adaptor
Solution Approach 1:
The connection system is segmented into multiple independent anchoring members (first anchoring member, second anchoring member, etc.) that can be individually engaged or disengaged from the upright post. This allows the user to release only one anchoring member at a time to adjust the extension arm, rather than overcoming friction on the entire adaptor assembly, thus improving ease of operation while maintaining support stability through the remaining engaged anchoring members.
2Reliability
If the adaptor is retained on the upright post with large friction, then the reliability of the connection is improved, but the device complexity increases due to the need for quick-release fasteners and elastomeric retaining members
Solution Approach 1:
The connection system is divided into multiple simple anchoring members distributed around the adaptor's circumference. Each anchoring member provides a portion of the total connection reliability, and their distributed arrangement ensures that disengaging one member does not compromise overall stability. This segmented approach achieves reliable yet simple connection without requiring complex quick-release mechanisms.
3Ease of operation
If the extension arm is removably connected to the adaptor module, then the ease of operation is improved for adjusting angular position, but the device complexity increases due to additional anchoring members and rails
Solution Approach 1:
The anchoring members for the extension arm are merged with the anchoring members for the upright post connection. The same anchoring members that provide reliable connection to the post also enable easy detachment of the extension arm from the adaptor module. This merging eliminates the need for separate connection mechanisms, achieving ease of operation without proportionally increasing device complexity.
Data Source
AI summary
An extension arm support device includes an upright post, and an adaptor module having a surrounding wall which surrounds the upright post, and a plurality of anchored portions disposed on the surrounding wall. Each anchored portion has at least one axially extending anchored rail. At least one extension arm has an anchoring portion facing the anchored portions, and having at least one anchoring member which is slidable along and engaged with the anchored rail in the axial direction such that the extension arm is removably connected to the adaptor module for adjusting the angular position of the extension arm relative to the upright post.