Corner Cupboard Rotary Column with Quick Height Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotary fittings for corner cupboards are difficult to handle and install, and they do not allow for quick and positive adjustment of the door element within the door opening.
Innovation Solution
A rotary fitting with a supporting column that includes a lower length adjusting assembly with a screw element, nut element, and actuation window, and an upper length adjusting assembly with a clamping element, allowing for easy height adjustment of the door element and shelves, and featuring a combination of plastic and metal components for noise reduction and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary fitting with door element fixed to supporting column is used, then the door element can be adjusted vertically, but the adjustment process is complex and time-consuming
Solution Approach 1:
The supporting column is divided into multiple height-adjustable segments with individual adjustment mechanisms. Each segment can be independently adjusted by rotating a knurled element that drives a threaded shaft, allowing incremental height changes without complex disassembly or assembly operations.
Solution Approach 2:
The door element and shelves are pre-assembled on the supporting column before installation into the cabinet. The supporting column is pre-adjusted to the required height using the threaded shaft mechanism during assembly, eliminating the need for complex post-installation adjustments.
2Ease of manufacture
If traditional mounting brackets with bearing members are used, then the rotary fitting is stable, but the structure is complex and difficult to install
Solution Approach 1:
The mounting brackets are designed to integrate multiple functions: supporting the supporting column, providing height adjustment through threaded shafts, and enabling rotational movement. The bearing members are combined with the mounting bracket structure, eliminating separate adjustment mechanisms and reducing overall component count.
Solution Approach 2:
The mounting brackets are designed as universal components that can accommodate different supporting column heights and positions. The same bracket structure serves both as a mounting element and as part of the height adjustment mechanism through the integrated threaded shaft and knurled element assembly.
3Adaptability or versatility
If the supporting column is made long to accommodate door element adjustment, then vertical adjustment range is sufficient, but the column becomes unstable
Solution Approach 1:
The supporting column is constructed as a telescopic or segmented structure with multiple adjustable sections. Each segment can be independently positioned and locked, providing the necessary vertical adjustment range while maintaining structural stability through the distributed support of multiple segments rather than a single long column.
Solution Approach 2:
The supporting column incorporates a dynamic adjustment mechanism where the height can be changed during installation and operation. The column transitions from a fixed-length structure to an adjustable-length structure, allowing optimization of both adjustment range and stability by positioning the column at appropriate heights for different operational conditions.
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 quick adjustment of the door element within the corner cupboard door opening, ensuring precise alignment and stability while minimizing noise and ensuring long product lifetime.
Implementation Method 1
a screw element having a head fitting in the recess, a cylindrical actuation part accessible through the at least one actuation window with the head in the recess, and a threaded shaft
Implementation Method 2
featuring a combination of plastic and metal components for noise reduction and stability
Data Source
AI summary
A rotary fitting for a corner cupboard comprises a lower and an upper mounting bracket; a supporting column having a main tube and being designed to be rotary mounted to the mounting brackets such that it rotates about its longitudinal axis; and at least two pie cut-shaped shelves to be supported by the supporting column fixed for rotation with the main tube. The supporting column includes a lower length adjusting assembly comprising a support element fixed in the main tube and comprising a recess; a screw element having a head fitting in the recess and a threaded shaft; a nut element arranged on the threaded shaft; and a lower end element fixed to the nut element and movable within the main tube; and an upper length adjusting assembly comprising a tube element partially arranged within the main tube; and a clamping element releasably clamping the tube element.