Sliding Hinge Mechanism for Low-Profile Cabinet Access
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Solution Overview
Problem
Conventional fiber optic cabinet designs with low profile configurations face challenges in accessing internal components due to limited space, often requiring removable doors that are difficult to securely lock and lack hinged access, hindering maintenance and upgrades.
Innovation Solution
A hinge mechanism that combines sliding and hinging motions, with pairs of hinge mechanisms mounted outboard on the cabinet's side walls, allowing the door to move downward without engaging structures below, facilitating access to internal components like patch panels while accommodating cable passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a low profile cabinet design is used, then the cabinet height is reduced, but the space for hinge mechanisms and access to internal components is limited
Solution Approach 1:
The hinge mechanism is designed to provide dynamic motion beyond simple rotation. The door can slide horizontally along the hinge arm and then pivot downward, creating a compound motion that overcomes the limited vertical space in low profile cabinets while maintaining access to internal components.
Solution Approach 2:
The hinge mechanism introduces a horizontal sliding dimension to the traditional vertical pivoting motion. By allowing the door to move horizontally along the hinge arm before pivoting downward, the mechanism utilizes additional spatial dimensions to achieve component access without increasing cabinet height.
2Ease of operation
If removable doors are used in low profile cabinets, then access to internal components is facilitated, but secure locking becomes difficult and frequent removal is required for maintenance
Solution Approach 1:
The hinge mechanism provides controlled dynamic motion with defined stop positions. The door can be easily opened by sliding and pivoting, yet remains securely locked in the closed position through the hinge's structural design, eliminating the need for separate locking mechanisms while preventing unauthorized access.
3Reliability
If conventional hinged doors are used, then secure locking is achieved, but the door requires significant space to swing open, which is not available in low profile cabinets
Solution Approach 1:
The hinge mechanism transforms the traditional arc-shaped door swing into a controlled two-stage motion: horizontal sliding along a constrained path followed by downward pivoting. This dynamic motion sequence reduces the horizontal space requirement while maintaining secure locking capability through the hinge's structural design.
Solution Approach 2:
Instead of requiring horizontal clearance for door swing, the mechanism utilizes the vertical dimension for the final pivoting motion. The door slides horizontally along the hinge arm (using minimal horizontal space) then pivots downward (utilizing vertical space), effectively trading horizontal movement for vertical movement to overcome space constraints.
Data Source
AI summary
Hinge mechanisms that facilitates access to internal components associated with a cabinet, e.g., a fiber optic cabinet, are provided. The hinge mechanisms are adapted for use with a telecommunication cabinet that is of low profile design, e.g., 1U or 2U height. The hinge mechanisms accommodate a combination of motions, e.g., a sliding motion and a hinging motion, whereby the limited space associated with a low profile cabinet is overcome and access to internal componentry, e.g., patch panels, is facilitated. A pair of hinge mechanisms are provided with a door. The hinge mechanisms mount outward of the cabinet so as to permit the door to be pivoted downward without engagement between with another cabinet or other structure positioned therebelow. A U-shaped member may be mounted to the door and sliding pins to translate motion from the hinge mechanisms to the door.