Sliding Assembly With Synchronized Dual Pull-Out Rails
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Solution Overview
Problem
Existing pusher arrangements for household appliances and furniture are complex and space-consuming due to the need for multiple drawer runners and gears, making it difficult to effectively move two sliding elements.
Innovation Solution
A compact pusher arrangement using two pull-out runners with synchronized movement, where the first sliding element is held on the outer rails and the second on the center rails, utilizing cable pulls or other synchronization means to ensure different speeds and paths, and featuring adjustable holders and actuating elements for easy assembly and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two separate pull-out runners with gears are used to move two sliding elements, then the sliding elements can be moved independently, but the device complexity and space consumption increase significantly
Solution Approach 1:
The patent merges two separate pull-out runners into a single integrated pull-out runner that serves both sliding elements. The single runner contains multiple rails (outer rails and center rails) that guide both the first and second sliding elements simultaneously, eliminating the need for separate runners and reducing overall system complexity while maintaining independent movement capability.
Solution Approach 2:
The single pull-out runner is segmented into different functional zones with outer rails for the first sliding element and center rails for the second sliding element. This segmentation allows each sliding element to be guided independently along its specific path while sharing the same structural platform, reducing space consumption compared to two complete separate runners.
2Reliability
If a gear system is used to synchronize the movement of two sliding elements, then synchronized movement is achieved, but the device complexity and space requirements increase
Solution Approach 1:
The patent extracts and eliminates the gear synchronization mechanism from the system. Instead of using gears to enforce synchronized movement, the design allows the sliding elements to move independently along the single pull-out runner, with synchronization achieved naturally through the shared structural framework and cable pull mechanism rather than through complex gear transmissions.
3Reliability
If two complete pull-out runners are installed to accommodate two sliding elements, then each element has its own guide, but the installation space required becomes excessively large
Solution Approach 1:
The patent combines the guiding functions of two separate pull-out runners into a single integrated structure. The single runner contains both outer rails and center rails within one consolidated component, allowing two sliding elements to be guided simultaneously while occupying significantly less installation space than two separate runners would require.
Solution Approach 2:
The patent utilizes vertical stacking and layered arrangement within the single pull-out runner structure. The first sliding element operates on outer rails while the second sliding element operates on center rails, creating a multi-level configuration that maximizes space utilization and reduces the horizontal footprint required for installation.
Data Source
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AI summary
A sliding assembly includes two pull-out guides which can be secured to opposite side walls and each of which includes a stationary guide rail, a middle rail movably mounted on the guide rail, and a running rail movably mounted on the middle rail. A first slidable element is retained on the two running rails of the two pull-out guides, and a second slidable element is retained on the two middle rails of the two pull-out guides. By moving one slidable element, the other slidable element can also be moved.