Slide rail mechanism
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Solution Overview
Problem
Existing slide rail mechanisms for racks do not adequately control the movement of secondary objects, allowing them to be fully extended or retracted as needed, and there is a lack of mechanisms to prevent simultaneous extension or retraction of multiple drawers or objects.
Innovation Solution
A slide rail mechanism for racks featuring a locking member that moves between predetermined positions to control the movement of secondary objects, allowing partial extension or retraction based on the position of the primary rail, using auxiliary features to guide the locking member and prevent excessive movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If no locking mechanism is provided, then the second carried object can be freely moved relative to the first carried object, but the movement distance cannot be controlled and may cause interference with other drawers
Solution Approach 1:
The locking member is designed to dynamically change position between a first position (allowing full movement) and a second position (limiting movement). This dynamic state change enables the system to provide both freedom of operation and reliable movement control as needed, resolving the contradiction between ease of operation and reliability.
Solution Approach 2:
The locking mechanism changes the movement parameter (distance) of the second rail relative to the first rail. By transitioning between locked and unlocked states, it controls whether the second carried object can move freely or is restricted to a limited distance, thus resolving the contradiction between freedom of movement and movement control.
2Reliability
If a locking mechanism is added to control movement, then the movement distance can be controlled, but the device complexity increases
Solution Approach 1:
The locking member is movably mounted to the first carried object and automatically transitions between locked and unlocked positions based on the position of the second rail. The auxiliary feature on the first rail guides this automatic transition, eliminating the need for external control mechanisms and reducing overall device complexity while maintaining reliable movement control.
Solution Approach 2:
The auxiliary feature on the first rail acts as an intermediary that guides the locking member between positions. This simple guiding structure enables complex locking/unlocking functionality without requiring additional complex mechanisms, thus achieving reliable movement control with minimal increase in device complexity.
3Ease of operation
If the second rail can be fully extended, then the second carried object can be fully accessed, but it may interfere with other drawers or objects in the rack
Solution Approach 1:
The locking member provides preliminary anti-action by preventing the second rail from extending beyond a predetermined distance. This preemptive blocking action stops potential interference with other drawers before it can occur, resolving the contradiction between accessibility and interference prevention.
Solution Approach 2:
The locking mechanism implements partial action by allowing the second rail to extend only to a predetermined distance rather than full extension. This partial extension is sufficient for most access needs while preventing excessive extension that would cause interference with other objects, thus resolving the contradiction between accessibility and interference prevention.
Data Source
AI summary
A slide rail mechanism includes a carried object, a first slide rail assembly, a second slide rail assembly and a locking member. The first slide rail assembly includes a first rail configured to be mounted to a rack, and a second rail configured to carry the carried object. The second slide rail assembly includes a third rail arranged on the carried object, and a fourth rail movable relative to the third rail. The locking member is movably mounted on the carried object. During a process of the second rail being moved relative to the first rail along an opening direction to an extended position, the locking member is moved from a first predetermined position to a second predetermined position, such that a locking part of the locking member is configured to prevent the fourth rail from being moved along the opening direction.