Sliding rail device
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Solution Overview
Problem
Conventional sliding rail devices face challenges with the installation and stability of supporting units, leading to instability of the second rail during movement relative to the first rail.
Innovation Solution
The sliding rail device incorporates a first rail with engaging slots and supporting units that move along these slots, allowing the supporting units to tighten their abutment against the second rail's side walls during movement, enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional fixed supporting structure is used to prevent derailment, then the second rail is prevented from derailing, but the supporting unit cannot fully and tightly abut against the second rail, causing instability during movement
Solution Approach 1:
The supporting unit is designed with a movable structure that allows it to dynamically adjust its position and abutment force against the second rail. The supporting unit includes a movable supporting member that can slide along the first rail and adjust its contact pressure with the second rail, providing both derailment prevention and movement stability.
Solution Approach 2:
The supporting structure is divided into multiple independent supporting units, each capable of individual adjustment and abutment against the second rail. This segmentation allows each supporting unit to independently adapt to the second rail's position and provide targeted support, improving both reliability and stability.
2Ease of manufacture
If the supporting unit is fixed to the groove of the first rail, then installation is simplified, but the supporting unit cannot tightly abut against the second rail, causing instability
Solution Approach 1:
The supporting unit incorporates a movable mechanism that allows it to dynamically adjust its abutment force against the second rail during operation. This dynamic adjustment capability is built into the structure, maintaining ease of installation while achieving tight abutment through the movable supporting member that can press against the second rail as needed.
3Stability of the object's composition
If the supporting unit is designed to move along engaging slots, then the supporting unit can tighten abutment against the second rail during movement, but the device complexity increases
Solution Approach 1:
The supporting unit uses a relatively simple movable structure that slides along the engaging slot of the first rail. This dynamic mechanism allows the supporting unit to automatically adjust its position and tighten its abutment against the second rail during movement, achieving improved stability without requiring complex control systems or multiple components.
Solution Approach 2:
The supporting unit is designed to automatically adjust its abutment force against the second rail as it moves along the engaging slot. The movement of the second rail relative to the first rail naturally drives the supporting unit to tighten its contact, eliminating the need for external control mechanisms or additional actuating components.
Data Source
AI summary
A sliding rail device includes a first rail, a second rail and two supporting units. The first rail includes a first base wall and two first side walls cooperating with the first base wall to define a first passage. The first base wall has two engaging slots respectively adjacent to the first side walls. The second rail engages the first passage, is movable relative to the first rail, and includes a second base wall and two second side walls. The supporting units respectively and movably engage the engaging slots, and respectively and slidably abut against the first side walls and the second side walls. During movement of the second rail relative to the first rail, the supporting units are driven to respectively move along the engaging slots, and to move toward each other to tighten abutment of the supporting units against the second side walls.