Drawer Rail Coupling with Adjustable Height Mounting
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Solution Overview
Problem
Existing coupling devices for drawers and drawer extension guides do not allow for adjustable height positioning, which can lead to improper alignment and hinder the adjustment of the front panel's height or inclination due to fixed connections.
Innovation Solution
The coupling device incorporates an adapter device with a mounting portion and an adjustable portion that can be adjusted vertically relative to the drawer bottom, allowing for stepless or latched positioning, enabling the coupling device to be securely fastened to a downwardly projecting bar, thus accommodating varying bar heights and allowing for independent adjustment of the front panel without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the coupling device is fixedly connected to the drawer bottom, then the coupling device is stable and secure, but the heightwise position cannot be adjusted when bars of different heights are used
Solution Approach 1:
The coupling device incorporates an adjustable mounting portion that can be positioned at different heightwise locations on the drawer bottom, transforming the fixed connection into a dynamically adjustable one. This allows the coupling device to adapt to bars of varying heights while maintaining secure attachment through multiple possible mounting positions.
Solution Approach 2:
The mounting portion is divided into multiple discrete heightwise positions, allowing selective attachment at different elevations. This segmentation enables the coupling device to accommodate different bar heights without requiring a completely different design for each height variation.
2Adaptability or versatility
If the coupling device is fixedly connected to the front panel of the drawer, then the coupling device is stable, but the front panel cannot be adjusted independently
Solution Approach 1:
The coupling device is extracted from direct attachment to the front panel and instead mounted on the drawer bottom at a distance from the front panel. This separation allows the front panel to be adjusted independently for height and inclination while the coupling device remains stably mounted on the drawer bottom structure.
3Ease of operation
If the coupling device uses resilient latching portions for automatic latching, then the latching is gradual and steady, but correct positioning relative to the moveable rail is required
Solution Approach 1:
The coupling device is pre-mounted on the drawer bottom at the correct heightwise position before the drawer is assembled and installed. This preliminary positioning ensures that when the drawer is later pushed onto the extension guide, the coupling device is already correctly aligned with the moveable rail, enabling automatic latching without requiring high positioning precision during final assembly.
Data Source
AI summary
The invention relates to a coupling device for detachably connecting a drawer to a movable rail of a drawer pull-out guide. The coupling device includes at least one movably mounted coupling part for detachably connecting the coupling device to the movable rail of the drawer pull-out guide. The coupling device includes an adapter device, so that the height position of the coupling part relative to the draw bottom can be adjusted. The adapter device includes a bearing part to be fastened to the drawer, and an adjustment part is connected to the coupling part. The adjustment part is adjustably supported in a direction substantially at a right angle to the drawer bottom in order to adjust the height position of the coupling part relative to the bearing part.