Telescopic rail
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Solution Overview
Problem
Existing telescopic rails with power-assisted or motor-driven extensions are complex, require significant design effort, and have high production costs, especially when dealing with three or more rail elements, and often necessitate larger installation spaces.
Innovation Solution
A telescopic rail design featuring a first, second, and third rail element with a drive device that uses a tension element to couple extension and retraction movements, allowing for linear displacement of the second rail element relative to the first, which in turn displaces the third rail element, utilizing guide elements with deflection surfaces to manage friction and force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If power-assisted or motor-driven telescopic slides are used with three or more rail elements, then assisted or automated extension is achieved, but device complexity increases significantly
Solution Approach 1:
The system divides the drive function into two independent parts: a drive device that moves the second rail element relative to the first, and a separate traction element (cable or belt) that transmits force to move the third rail element relative to the second. This segmentation allows the complex drive mechanism to remain simple while achieving automated movement of multiple rail elements through the intermediate牵引 element.
2Extent of automation
If complex drive systems are integrated into existing rail section designs, then power-assisted extension is achieved, but installation space increases
Solution Approach 1:
The牵引 element (cable or belt) is routed through the existing rail element structure, passing between the second and third rail elements and anchoring to the first rail element. This nesting approach allows the force transmission mechanism to be integrated within the existing telescopic structure without requiring additional external space for drive components.
Solution Approach 2:
The牵引 element acts as an intermediary force transmission medium between the drive device and the third rail element. Instead of directly integrating complex drive mechanisms into each rail section, the牵引 element mediates the force transfer, allowing compact integration that minimizes installation space while achieving power-assisted extension.
3Extent of automation
If complex drive systems are used for three or more rail elements, then automated extension is achieved, but production costs increase
Solution Approach 1:
The system uses a simple, standardized drive device for the second rail element combined with a basic牵引 element (cable or belt) for force transmission. This segmentation avoids the need for complex integrated drive systems in each rail section, significantly reducing manufacturing complexity and production costs while maintaining motor-driven automation capability.
Solution Approach 2:
The牵引 element uses simple, inexpensive components such as cables or belts instead of complex mechanical linkages or additional motorized systems. These inexpensive force transmission elements dramatically reduce production costs while effectively achieving automated extension of three or more rail elements.
4Extent of automation
If existing telescopic slide designs are modified for power assistance, then assisted extension is achieved, but the number of components increases
Solution Approach 1:
The牵引 element serves multiple functions simultaneously: it transmits force from the drive device to move the third rail element, provides structural coupling between rail elements, and can incorporate guide elements with deflection surfaces to manage friction. This multi-functionality reduces the total number of components needed compared to adding separate elements for each function.
Solution Approach 2:
The guide elements are merged with the牵引 element system, with deflection surfaces integrated into the cable or belt routing path. This combining of force transmission and guidance functions into a single integrated system reduces the number of separate components compared to having independent guide mechanisms for each rail element.
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
This design enables efficient, cost-effective power-assisted or motor-driven extension and retraction of three or more rail elements with reduced installation space requirements and simplified integration into existing constructions, while minimizing component count and production costs.
Implementation Method 1
guide elements with deflection surfaces to manage friction and force transmission
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
According to the invention, a telescopic rail is proposed comprising a first rail element, a second rail element, a third rail element, and a drive device, wherein the first rail element and the second rail element are mounted together such that the first rail element and the second rail element are linearly displaceable relative to each other in and against an extension direction, wherein the third rail element and the second rail element are mounted together such that the third rail element and the second rail element are linearly displaceable relative to each other in and against the extension direction, wherein the drive device is mounted on the first rail element or can be mounted on a retaining element connectable to the first rail element, wherein the drive device is designed such thatthat the drive device in operation of the telescopic rail causes a linear displacement movement of the second rail element relative to the first rail element in or against the extension direction, wherein the telescopic rail has a traction element, wherein the traction element is fixed to the first rail element and to the third rail element and wherein the traction element is guided on the second rail element, such that a displacement movement of the second rail element relative to the first rail element results in a displacement movement of the third rail element relative to the second rail element.