Drawer Faceplate Coupling With Setting Wheel Lateral Adjustment
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Solution Overview
Problem
Existing devices for detachably coupling drawers to extendable rails of pull-out guides face challenges in lateral adjustment, often resulting in inaccuracies due to manufacturing or installation errors, which can lead to drawers being slightly inclined or not extending properly, and complicate the adjustment process, especially when multiple drawers are involved in furniture.
Innovation Solution
A device with a fastening part and a coupling part that are linearly movable relative to each other, featuring an adjustment mechanism with a setting wheel that converts rotational movement into linear movement, allowing for precise lateral adjustment of the drawer position, and includes self-locking and arresting features to maintain adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lateral position of a drawer is adjusted by rotating the setting wheel, then the alignment accuracy is improved, but the structural parts may tilt which complicates further adjustment
Solution Approach 1:
The coupling device is divided into separate functional components: a fastening part attached to the drawer, a coupling part that interfaces with the rail, and an adjustment device with setting wheel. This segmentation allows the adjustment mechanism to operate independently without causing tilting of the entire structure, resolving the contradiction between achieving precise alignment and maintaining ease of operation.
Solution Approach 2:
The patent introduces intermediary elements such as linear movement guides and transmission mechanisms between the setting wheel and the coupling parts. These intermediaries convert the rotational movement of the setting wheel into linear movement while preventing tilting, thus maintaining both alignment accuracy and operational simplicity.
2Volume of moving object
If the coupling device is made compact to fit under the drawer bottom, then the installation space is optimized, but the adjustment device becomes more difficult to manipulate
Solution Approach 1:
The setting wheel is positioned to extend laterally beyond the compact coupling device housing, making it accessible from the side rather than from above. This dimensional change allows the adjustment mechanism to remain compact underneath the drawer while maintaining ease of operation through lateral accessibility of the setting wheel.
3Manufacturing precision
If the fastening part and coupling part are made linearly movable for adjustment, then the lateral alignment is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex multi-axis mechanical adjustment mechanisms with a simpler system that converts rotational movement of a single setting wheel into linear movement of the coupling parts. This substitution maintains precise lateral alignment capability while significantly reducing the overall device complexity.
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
Enables easy installation and removal of drawers, ensures accurate lateral alignment, and prevents accidental changes in adjustment, providing a smooth appearance for furniture by allowing intuitive and precise lateral adjustment of drawers relative to the rail.
Implementation Method 1
The adjustment device comprises at least two transmission devices, axially spaced from one another, for converting a rotational movement of the setting wheel into a linear movement of the fastening part relative to the coupling part
Implementation Method 2
the force transmitted by rotating the setting wheel is relayed via the two axially spaced transmission devices to the fastening part or to the coupling part
Data Source
AI summary
A device for detachably coupling a drawer to an extendable rail of a pull-out guide including an adjusting device by which a position of a drawer connected to the rail is adjustable relative to the rail in a lateral direction. The adjusting device includes a fastening part that can be fastened to the drawer and a coupling part that can be coupled to the rail. The fastening part is linearly movable by the adjusting device relative to the coupling part, and the adjustment device includes a setting wheel mounted on the coupling part or on the fastening part so as to rotate about an axis. The adjustment device also includes at least two axially spaced transmission devices for converting a rotary movement of the setting wheel into a linear movement of the fastening part relative to the coupling part.