Pull-Out Guide Synchronization Element for Drawer Load Distribution
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Solution Overview
Problem
Existing pull-out guides for drawers face issues with synchronization of guide parts and carriages, leading to incorrect relative positions, excessive stress, and drawer lowering during extraction, especially when loaded, due to complex constructive requirements and assembly complexities in previous synchronization solutions.
Innovation Solution
A pull-out guide with a synchronization element on the intermediate guide part, featuring a pinion that engages racks on the fixed and movable guide parts, allowing for reduced modifications and ensuring reliable operation, with support elements for easy retrofitting and elastic compensation for misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synchronization means are added to control the relative positions of guide parts, then the correctness of drawer movement is improved, but the constructive and assembly complexity increases
Solution Approach 1:
The patent introduces an intermediate guide part as a mediator between the fixed guide part and the movable guide part. This intermediate component provides a reference surface that facilitates accurate positioning and synchronization of the guide parts during assembly, thereby improving movement correctness while keeping the assembly process manageable through a modular approach.
2Manufacturing precision
If complex synchronization means are implemented, then the positioning accuracy of guide parts is improved, but the manufacturing and assembly difficulty increases
Solution Approach 1:
The intermediate guide part is designed with self-aligning features including a reference surface that automatically guides the positioning of the movable guide part during assembly. The carriage components also incorporate self-adjusting mechanisms that utilize the reference surface to achieve correct positioning without requiring complex external synchronization tools or procedures, thereby maintaining high positioning accuracy while simplifying the assembly process.
3Strength
If the guide parts are made more rigid to prevent excessive stress, then the structural strength is improved, but the ability to compensate for misalignment decreases
Solution Approach 1:
The patent introduces controlled flexibility through the intermediate guide part and carriage components. The intermediate guide part can accommodate minor misalignments through elastic deformation, while the carriage components include adjustment mechanisms that allow dynamic compensation during operation. This dynamic approach maintains overall structural strength while providing adaptability to handle positioning variations and excessive stresses.
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 optimal load distribution, reduced stress on guide parts, and improved drawer stability in the fully extracted position with reliable and silent operation, while simplifying assembly and reducing complexity compared to prior solutions.
Implementation Method 1
sliding carriages provided with rolling sliding elements
Implementation Method 2
synchronization means comprise at least one synchronization element arranged on said intermediate guide part and contoured to functionally connect said fixed guide part and said movable guide part to each other
Data Source
AI summary
A pull-out guide for drawers or the like comprising a fixed guide part fastenable to the body of a piece of furniture, a movable guide part fixable to a drawer or the like, an intermediate guide part between the fixed guide part and the movable guide part, wherein at least one first sliding carriage is interposed between the fixed guide part and the intermediate guide part and at least one second carriage is interposed between the movable guide part and the intermediate guide part; means of synchronizing the pull-out guide is further provided which comprise at least one synchronization element arranged on the intermediate guide part and contoured to functionally connect the fixed guide part and the movable guide part to each other during the pull-out or retraction movement of the pull-out guide.