Flush-Mount Door Pivot Arm for Interference-Free Opening
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Solution Overview
Problem
Existing door devices for electronic equipment, such as network storage equipment, face structural interference issues due to small gaps between the door and decorative panel, preventing smooth rotation and opening.
Innovation Solution
A door device with a pivoting arm module and locking lever mechanism that allows the door to transition between a received status for closure and an ejected status for opening, enabling the door to rotate without interference by sliding and rotating relative to the panel, using a compression spring and cambered surfaces to facilitate smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the door is positioned at the center of the decorative panel with a small gap, then the appearance is improved and the gap is minimized, but structural interference occurs between the door and the decorative panel preventing rotation
Solution Approach 1:
The patent applies the dynamics principle by making the door movable relative to the decorative panel through a pivoting arm mechanism. The door is connected to the pivoting arm, which allows the door to dynamically change its position between a closed state (flush with panel) and an open state (ejected and rotated). This dynamic structure resolves the contradiction by enabling both aesthetic appearance when closed and operational freedom when opened.
Solution Approach 2:
The patent segments the door assembly into multiple independent components: the door itself, the pivoting arm, the holder, and the biasing mechanism. This segmentation allows each component to perform its specific function - the door provides closure, the pivoting arm enables motion, the holder provides support, and the biasing mechanism provides force. The segmentation resolves the contradiction by distributing functions across components rather than requiring the door to simultaneously maintain both aesthetic appearance and rotational freedom.
2Shape
If the door abuts against the panel to close the doorway flush, then the appearance surface is aligned and small gap is formed, but the door cannot rotate without structural interference
Solution Approach 1:
The dynamic pivoting arm mechanism enables the door to adapt between two states: closed (flush with panel for aesthetic appearance) and open (ejected and rotated for access). The biasing block and compression spring provide the adaptive force needed to transition between these states, resolving the contradiction between maintaining flush appearance and enabling opening capability.
Solution Approach 2:
The pivoting arm acts as an intermediary mechanism between the door and the decorative panel. Instead of directly connecting the door to the panel, the pivoting arm mediates the connection, allowing the door to maintain flush appearance when closed while enabling rotation when opened. The biasing block serves as another intermediary that provides the necessary force for the transition.
3Length of moving object
If a small gap is maintained at the junction between door and decorative panel, then structural interference is minimized, but the door still cannot rotate smoothly
Solution Approach 1:
Rather than relying on a small gap to prevent interference, the patent uses a dynamic pivoting arm mechanism that actively manages the door's position and motion. The compression spring and biasing block provide continuous force to maintain proper spacing and enable smooth rotation, resolving the contradiction by replacing passive gap management with active dynamic control.
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
Enables the door to close flush with the panel, preventing unexpected rotation and allowing for a small gap, while allowing translation and rotation to open the doorway without structural interference, facilitating maintenance and replacement of electronic components.
Implementation Method 1
The compression spring is accommodated in the second through hole and compressed between the bottom of the accommodating trough and the biasing block
Implementation Method 2
The biasing block has a cambered surface. The edge is located at a distal end of the cambered surface
Data Source
AI summary
The disclosure discloses a door device including a panel, a pivoting arm module, and a door. The pivoting arm module includes a holder and a panel-pivoting arm. The holder is located in a doorway of the panel and fixed to the panel. The holder has an entrance and an accommodating trough. The panel-pivoting arm is slidably accommodated in the accommodating trough and can present a received status or an ejected status relative to the holder. The door is pivotally connected to the panel-pivoting arm. When the panel-pivoting arm presents the received status, the door abuts against the panel and closes the doorway, and the appearance surface of the door is flush with that of the panel. When the panel-pivoting arm presents the ejected status, the door leaves the panel and can rotate relative to the panel-pivoting arm to open the doorway.