Self-Locking Drawer Rail Fixing for High Holding Force
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Solution Overview
Problem
Existing devices for fixing drawers to pull-out guides face limitations in providing high holding forces, especially when drawers are heavy and need precise positioning, as they often rely on plastic parts with limited holding forces and reduced positional accuracy.
Innovation Solution
A device with a clamping mechanism featuring a self-locking clamping lever that secures a web-shaped holding part through frictional engagement, allowing for high holding forces and precise positioning, using a force-locked connection independent of stop elements, and optionally incorporating metal components for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic latching element and base part are used for fixing the drawer to the pull-out guide, then the device complexity is reduced and ease of manufacture is improved, but the holding forces are limited and manufacturing precision deteriorates
Solution Approach 1:
The invention uses a metal clamping lever instead of plastic components, combining the advantages of metal material (high strength, high holding forces) with a simple clamping mechanism design. The metal clamping lever provides sufficient holding forces for heavy drawers while maintaining ease of manufacture through the simple clamping mechanism design.
2Adaptability or versatility
If a resilient material piece is used to connect the holding part and counter-holding part, then the adaptability is improved for compensating distance variations, but the manufacturing precision deteriorates due to reduced positional accuracy
Solution Approach 1:
The invention uses a self-locking clamping mechanism that allows for dynamic adjustment of the holding part position along the pull-out guide. The clamping lever can be positioned at different locations to accommodate variations in the distance between guide rails, while the self-locking feature ensures precise positioning without requiring resilient materials that would reduce accuracy.
3Reliability
If a self-locking clamping lever with frictional engagement is used to secure the holding part, then the holding forces are increased and reliability is improved, but the device complexity increases
Solution Approach 1:
The invention employs a self-locking clamping lever that automatically maintains the clamping force through frictional engagement without requiring additional locking mechanisms or complex control systems. The lever's geometry and friction characteristics enable it to self-lock in the clamped position, providing high reliability while keeping the device complexity low.
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 device provides stable and precise fixing of drawers, ensuring they do not pull out inadvertently, with high clamping forces that increase with loading, and allows for easy assembly and stepless adjustment, maintaining precise positioning during use.
Implementation Method 1
a self-locking clamping lever is provided on the receptacle by means of which the holding part is secured in a frictionally engaged manner against pulling out
Data Source
AI summary
A device for fixing a push element, in particular a drawer box to a rail of a pull-out guide, the device comprising a clamping mechanism with a receptacle, into which a web-shaped holding part can be inserted, wherein a self-locking clamping element is provided at the receptacle, by means of which the holding part is secured in a clamping manner against being pulled out. As a result, a particularly stable fixation of the drawer box to a pull-out guide can be achieved.