Slide Rail Assembly With Friction-Based Movement Control Features
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing slide rail mechanisms lack effective means to prevent or slow down the rapid movement of rails relative to each other, leading to potential impacts and safety hazards.
Innovation Solution
A slide rail assembly comprising a first rail, a second rail, a third rail, and an auxiliary member, where the rails are equipped with blocking and predetermined features that interact to provide resistance and slow down movement through friction, and an auxiliary member that switches states to allow synchronized movement, enhancing safety by preventing excessive speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If no blocking or resistance mechanism is provided, then the rails can move freely along the predetermined direction, but the movement cannot be controlled and may cause impact or safety hazards
Solution Approach 1:
The blocking feature is pre-configured on the first rail and the auxiliary member is pre-positioned on the third rail. When the third rail reaches a predetermined position, the blocking feature automatically blocks the auxiliary member, preventing further movement without requiring active control or sensing systems.
Solution Approach 2:
The auxiliary member acts as an intermediary between the first rail and the third rail. It transmits the blocking force from the blocking feature to the third rail, enabling controlled movement restriction without direct contact between the first and third rails.
2Reliability
If a blocking mechanism is provided to prevent rapid movement, then safety is improved, but the rails cannot move smoothly and continuously
Solution Approach 1:
The auxiliary member transitions between different states (blocked and unblocked) based on the position of the third rail. This dynamic behavior allows the system to provide resistance only when needed (at predetermined positions) while allowing free movement during normal operation.
Solution Approach 2:
The blocking mechanism operates periodically at predetermined positions along the rail path. The auxiliary member is blocked at specific intervals (when predetermined features contact) and free to move between these positions, creating a periodic pattern of resistance and free movement.
3Reliability
If the auxiliary member is always blocked to prevent movement, then safety is maximized, but the rails cannot move when needed
Solution Approach 1:
The blocking feature is localized to specific predetermined positions on the first rail, and the auxiliary member is blocked only at these specific locations. Between these localized blocking points, the rails maintain full movement capability, allowing the system to be safe at critical positions while productive elsewhere.
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 assembly effectively slows down rail movements, reducing the risk of impact and enhancing safety by providing a temporary buffering mechanism, ensuring smooth and controlled operation.
Implementation Method 1
the first predetermined feature and the second predetermined feature are configured to contact each other in order to slow down movement of the second rail along the predetermined direction relative to the third rail
Data Source
AI summary
A slide rail assembly includes two slide rails. During a process of a first one of the two slide rails being moved relative to a second one of the two slide rails along a predetermined direction, a first predetermined feature and a second predetermined feature are configured to contact each other to provide resistance in order to stop or slow down the relative movement between the two slide rails.