Pivoting Rack Rail Locking Lever for Tool-Free Secure Mounting
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Solution Overview
Problem
Conventional rack assembly systems for mounting electronic components require cumbersome tool-based fastening methods or rely on gravity, which is insecure, lacking a reliable and tool-free mechanism for securing rack rails.
Innovation Solution
A rack rail locking lever system that includes a pivotable locking lever with a tang mechanism, allowing secure attachment to rack assembly mounting rails without tools, using an end insert to limit travel and a detent mechanism for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rack rails are bolted or fastened to mounting rails, then the rack rails are securely attached, but the process becomes cumbersome and time-consuming requiring tools
Solution Approach 1:
The locking lever is designed as a movable component that pivots between locked and unlocked positions. The lever includes a tang that can engage with and disengage from the mounting rail slot dynamically, allowing the rack rail to be quickly secured or removed without tools by simply moving the lever between positions
Solution Approach 2:
The locking mechanism is integrated directly into the rack rail assembly, with the locking lever and tang forming a self-contained system that operates independently. The lever's movement automatically engages or disengages the tang with the mounting rail slot, making the system self-sufficient and eliminating the need for external fasteners or tools
2Ease of operation
If rack rails rely on gravity to hold them in slots, then no fasteners are needed, but the rack rails can be dislodged inadvertently
Solution Approach 1:
The locking lever acts as an intermediary component between the rack rail and the mounting rail. The tang on the locking lever engages with the slot in the mounting rail to provide positive mechanical retention, while the lever itself serves as the mediating element that can be moved to engage or disengage this retention, combining the simplicity of no fasteners with reliable anti-dislodgment protection
3Reliability
If a locking mechanism is added to rack rails, then security against dislodgment is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is segmented into distinct functional components: the locking lever as a separate movable element and the tang as an integrated part of the lever assembly. This segmentation allows each component to perform its specific function independently while keeping the overall structure simple and manageable
Solution Approach 2:
The locking lever is integrated with the rack rail assembly, combining the lever, tang, and mounting features into a unified structure. This merging eliminates the need for separate fasteners or additional components, achieving reliable locking functionality while maintaining simplicity in the overall device structure
Data Source
Figure 1~3
Figure 2
Figure 4A~4D
AI summary
A locking lever for a removable rack rail includes a base plate, a body plate mounted to the base plate so as to be pivotable about a pivot point between a first position and a second position with respect to the base plate, a tang extending in a lateral direction from the body plate, and a finger tab extending from the body plate for actuating the body plate to pivot about the pivot point with respect to the base plate, wherein when the body plate is in the second position the tang is at least partially recessed so that an end portion of the locking lever can fit in a slot on a mounting rail, and wherein when the body plate is in the first position the tang extends laterally beyond the lateral edge of the base plate so that the end portion cannot be removed from the slot.