Extendable drawer slide
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Solution Overview
Problem
The installation of drawer slides can be challenging, especially when alignment is required different from the cabinet or frame, and the separation of rails during normal operation is undesirable.
Innovation Solution
A drawer slide design featuring extendably coupled rails with offset portions for angled mounting, a disconnect lever for constraining rail movement, and a stop tab mechanism to allow rail disconnection, enabling flexible alignment and easy installation while preventing rail separation during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If drawer slides are installed with alignment different from the cabinet or frame, then adaptability to different mounting configurations is improved, but installation difficulty increases
Solution Approach 1:
The drawer slide incorporates a disconnect lever that allows the rail assembly to be dynamically reconfigured. The lever can be engaged during normal operation to maintain fixed alignment, or disengaged during installation to allow the rail to be positioned at different angles relative to the cabinet frame, thereby accommodating various mounting configurations without increasing installation difficulty
Solution Approach 2:
The drawer slide is divided into separable components including the rail, cabinet mount, and disconnect lever. This segmentation allows the rail to be independently positioned and angled during installation, then connected to form a complete assembly. The modular design enables flexible mounting angle adjustment while simplifying the installation process through component-wise assembly
2Ease of repair
If rails are separated for disassembly, then ease of repair and adaptability are improved, but operational reliability deteriorates due to potential unintended separation
Solution Approach 1:
The disconnect lever provides dynamic control over rail separation. When engaged, it securely connects the rail to the cabinet mount, preventing unintended separation during normal operation and maintaining operational reliability. When disengaged, it allows intentional separation for repair or reconfiguration purposes, thereby achieving both ease of repair and operational stability through user-controlled state changes
3Adaptability or versatility
If multiple support positions are provided for fastener alignment, then adaptability to different cabinet configurations is improved, but device complexity increases
Solution Approach 1:
The offset portions extend perpendicular to the plane of the web, creating a third dimension for mounting hole placement. This allows multiple fastener positions to be arranged in an offset pattern that provides adaptability to different cabinet configurations without requiring complex in-plane arrangements. The vertical offset simplifies the mounting structure by utilizing spatial dimensionality rather than complicating the two-dimensional web geometry
Data Source
AI summary
A drawer slide may include features for installation of the drawer slide to a cabinet and/or features for withdrawing rails of the drawer slide from one another. The features for installation of the drawer slide may include offset surfaces in a web of a rail, for example allowing for clearance for mounting hardware, and/or openings allowing for various positioning of the rail on a cabinet. The features for withdrawing rails from one another may include a moveable disconnect lever allowing for release of a catch of a rail, and/or a moveable hook.