Slide Rail Locking Mechanism for Confined-Space Release
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Solution Overview
Problem
Conventional slide assemblies cannot lock the second rail relative to the first rail at the retracted status, and the second rail cannot be individually unlocked and pulled with the third rail, making them unsuitable for installation in limited spaces, such as cabinets or machine rooms where sufficient depth is lacking.
Innovation Solution
A locking mechanism comprising a first stop on the first rail, a locking member movably connected to the second rail with a guide slot and pin, and a synchronization member with a resilient latch, allowing the second rail to be locked to the first rail and individually pulled with the third rail, enabling secure locking and release within a limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the second rail is simultaneously pulled out with the third rail, then the third rail can be completely disengaged from the second rail, but the operation space depth must be larger than the full length of the third rail plus the extended length of the second rail
Solution Approach 1:
The locking mechanism is segmented into independent components: a locking member with a pin that can be independently actuated from the third rail, allowing the second rail to be locked to the first rail while the third rail remains connected to the second rail. This segmentation enables the third rail to be disengaged without requiring full extension of the second rail.
Solution Approach 2:
The locking member is designed with movable elements (pin that can move between locked and unlocked positions) that allow dynamic control of the locking state. The pin can be independently actuated to lock or unlock the second rail to the first rail, providing dynamic control over the mechanical coupling without requiring full rail extension.
2Volume of moving object
If the second rail is locked to the first rail at retracted status, then the slide assembly can be installed in limited space, but the second rail cannot be individually unlocked and pulled with the third rail
Solution Approach 1:
The locking member acts as an intermediary mechanism between the first and second rails, providing independent control over their coupling. The locking member with its pin can be actuated separately from the third rail to lock or unlock the second rail to the first rail, enabling individual control without affecting the third rail connection.
Solution Approach 2:
The locking mechanism is segmented into independent components that can be independently controlled. The locking member with pin is separated from the third rail actuation mechanism, allowing the second rail to be locked to the first rail while the third rail remains connected to the second rail, enabling individual unlocking operations.
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
The mechanism effectively locks the first and second rails at the retracted position, allowing the second rail to remain stationary during third rail pull-out, making the slide assembly suitable for installation in confined spaces by ensuring secure locking and easy disengagement.
Implementation Method 1
A resilient member is fixed to the second rail. The synchronization member comprises a first end, a second end and a mediate portion which is located between the first and second ends. The first end has a latch and the resilient member biases the second end of the synchronization member so that the latch of the first end of the synchronization member constantly protrudes above the opening of the second rail.
Data Source
AI summary
A locking mechanism of a slide assembly includes a first rail with a first stop connected thereto, a locking member movably connected to a second rail which is slidably connected to the first rail. The second rail has a slide slot and a contact slot. The locking member has a guide slot and a positioning leg contacting an inside of the contact slot. The guide slot is an inclined slot and located relative to the slide slot of the second rail. A pin is movably connected to the slide slot and a part of the pin is located in the guide slot. The locking member is moved and the pin is guided by the guide slot and moves along the slide slot to a locked position where the pin is engaged with the first stop to lock the second rail to the first rail.