Pull-Out Guide Stop Damper for Compact High-Load Damping
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Solution Overview
Problem
Existing pull-out guides for furniture face challenges with damping devices that have high space requirements and wear quickly, especially under higher loads, making them inefficient and costly.
Innovation Solution
A pull-out guide with a stop damper featuring a movably mounted transmission part that interacts with elastic damping elements made of elastomeric materials, diverting force to an end stop at high loads to reduce wear and integrate damping within a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber stop elements are used for damping, then the damping function is achieved, but the service life is short due to quick wear under higher loads
Solution Approach 1:
The damping function is segmented between two distinct components: the elastomeric damping element for normal operation and the rigid end stop for high load conditions. This segmentation allows each element to be optimized for its specific function, with the rigid end stop bearing the brunt of high loads to prevent wear of the elastomeric element.
Solution Approach 2:
The rigid end stop is positioned beforehand to intercept high loads before they can damage the elastomeric damping element. This prior protection mechanism ensures that the elastomeric element only experiences gentle damping forces during normal operation, significantly extending its service life.
2Reliability
If cylinder or rotary dampers are used for damping, then the damping function is achieved, but the space requirement is large and installation is difficult
Solution Approach 1:
The damping function is merged into the existing guide rail structure by integrating the elastomeric damping element and rigid end stop directly onto the guide rail components. This eliminates the need for separate cylinder or rotary damper units, significantly reducing space requirements and simplifying installation.
Solution Approach 2:
The guide rail structure serves multiple functions: it provides the sliding surface for the drawer and simultaneously houses the damping mechanism through the elastomeric element and end stop. This multi-functionality eliminates the need for dedicated damping components, reducing overall space requirements.
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 provides a durable and space-efficient damping mechanism that effectively manages high loads, extending the lifespan of the damping device and reducing costs by integrating it within the guide's design.
Implementation Method 1
a force exerted by the counter-stop element on the stop damper is transmitted via the transmission part to the at least one elastic damping part made of an elastomeric material
Implementation Method 2
the movement of the counter-stop element against the stop damper is dampened
Data Source
Figure 1~3
Figure 4~6
Figure 7~10
AI summary
A pull-out guide for a furniture part (1) that can be pulled out of a furniture carcass (2) comprises a first guide rail (3; 4) and a second guide rail (4; 5), which is slidably mounted relative to the first guide rail (3; 4) in and against a displacement direction (6; 7) over a displacement path, wherein the braking of the second guide rail (4; 5) is dampened at least at one end of the displacement path by a stop damper (22; 47) arranged on one of the guide rails (3, 4, 5), against which a counter stop element (20, 21; 46; 66) arranged on the other guide rail (3, 4, 5) runs.The stop damper (22; 47) has a transmission element (23; 48) which is movably mounted relative to the guide rail (3, 4, 5) on which the stop damper (22; 47) is arranged and which, when the counter-stop element (20, 21; 46; 66) approaches the stop damper (22; 47), is moved against a restoring force of at least one elastic damping element (24, 25; 50) made of an elastomeric material. If a limit value of the force exerted by the counter-stop element (20, 21; 46; 66) on the stop damper (22; 47) is exceeded, the transmission element (23; 48) or the counter-stop element (46) interacts with an end stop (42, 43; 55) (Fig. 12).