Drawer Pull-Out Rail Adjustment Without Receiving Plates
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Solution Overview
Problem
Existing drawer pull-out guide systems are complex and require additional components, such as receiving plates, for adjustable mounting and removal, which complicates the process and may require tools.
Innovation Solution
A compact adjusting device with a holding projection in the drawer and a displaceable mounting portion on the extension rail, allowing for tool-free mounting and adjustment without additional plates, utilizing a metallic carrier with a plastic casing for frictional and positive locking engagement, enabling horizontal and vertical movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a receiving plate is added to the drawer rear wall for adjustable mounting, then the adjustability of the drawer position is improved, but the device complexity increases
Solution Approach 1:
The patent merges the receiving plate and mounting portion into a single integrated adjusting device. The holding projection on the extension rail directly engages with the bore in the drawer rear wall, eliminating the need for a separate receiving plate. This integration maintains the adjustability function while reducing the number of components and simplifying the overall structure.
2Ease of operation
If additional lateral displacement mechanism is added to the extension rail, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent implements a dynamic adjusting device where the holding projection can be displaced laterally relative to the extension rail. The mounting portion is designed to allow controlled lateral movement during the adjusting process, enabling easy operation. After adjustment, the device locks into position, providing stability without requiring complex additional mechanisms.
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 structurally simple and compact mechanism for adjustable drawer mounting and removal, allowing for tool-free operation and adjustable vertical gaps between drawer panels, enhancing usability and installation flexibility.
Implementation Method 1
utilizing a metallic carrier with a plastic casing for frictional and positive locking engagement
Implementation Method 2
metallic carrier with a plastic casing for frictional and positive locking engagement
Data Source
AI summary
A pull-out guide for drawers includes a body rail to be fastened to a furniture body and at least one pull-out rail that can be moved relative to the body rail. The guide also includes an adjustment device by which a position of a drawer that is connected or can be connected to the pull-out rail can be adjusted. The adjustment device includes at least one retaining pin that can be inserted in a provided borehole of the drawer and a bearing part mounted on the pull-out rail. The bearing part is arranged at the rear end of the pull-out rail and extends at a distance to an upper side of the pull-out rail in a substantially horizontal direction in the longitudinal direction of the pull-out rail, wherein the bearing part is mounted adjustably inside the retaining pin.