Telescopic Rail Crash Locking Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional telescopic rails lack a mechanism to prevent unintended operation, particularly during accidents, where excessive acceleration can lead to uncontrolled movement, potentially causing injuries or damage.
Innovation Solution
A telescopic rail with a locking device comprising a stop element, a mass element, and a spring element, where the mass element detects acceleration exceeding a threshold, triggering the locking element to engage with the stop element, preventing further extension when high acceleration is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking device is added to prevent unintended operation during accidents, then safety is improved, but device complexity increases
Solution Approach 1:
The locking element and mass element are combined into a single integrated component that performs both locking and acceleration detection functions, reducing the number of separate parts while maintaining safety functionality
Solution Approach 2:
The integrated locking mass element serves multiple functions: it acts as both the locking element that engages with the stop element and the mass element that detects excessive acceleration, making one component perform multiple critical roles
2Reliability
If a locking device with multiple components is implemented, then reliability is improved, but installation size increases
Solution Approach 1:
The locking element and mass element are merged into one integrated component, reducing the overall volume required for installation while ensuring reliable accident detection and locking functionality
Solution Approach 2:
The spring element is positioned within the housing structure, and the integrated locking mass element is arranged within the available space, optimizing the use of internal volume to minimize overall installation footprint
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 solution effectively prevents uncontrolled sliding by engaging the locking element with the stop element only during high acceleration events, ensuring safety during emergency conditions while allowing normal operation without locking, thus reducing component count and installation size.
Implementation Method 1
a spring element that resiliently pretensions the mass element with a spring force
Implementation Method 2
the concept forming the basis of the invention is to detect, with the aid of the mass element, an acceleration of the second rail exceeding a particular threshold value
Data Source
AI summary
Telescopic rail includes first rail and second rail supported against each other to be linearly slidable in relation to each other in an extending direction from a first position into a second position, and locking device. The locking device includes stop element on first rail, mass element held on second rail and movable in relation to second rail in the extending direction or against the extending direction, spring element resiliently pretensioning mass element with a spring force, and locking element. The spring force has a force direction in the extending direction or against the extending direction. Mass element is movable against the spring force from an idle position into a triggering position, and, through a movement of mass element against the spring force, locking element is movable from an unlocked position into a locking position such that locking element in the locking position can be brought into engagement with stop element.