Extraction device for a cabinet, in particular a corner cabinet
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Solution Overview
Problem
Existing pull-out devices for corner cabinets are mechanically complex, inefficiently utilize interior space, and do not maximize shelf area, often leaving parts of the cabinet unused.
Innovation Solution
A multi-part shelf system with a first and second shelf section, guided by a first and second guide device, where the second shelf section pivots along a circular arc trajectory, connected via a coupling device, allowing for a simple and robust design that maximizes available space and shelf area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a one-piece shelf with guide rods is used to maximize shelf area, then the shelf area is maximized, but parts of the interior space remain unused
Solution Approach 1:
The shelf is divided into multiple independent sections (first shelf section and second shelf section) that can move separately along different trajectories. This segmentation allows each section to access different portions of the corner cabinet space, thereby maximizing both the usable shelf area and the utilization of the entire interior volume including previously unused corner regions.
2Volume of stationary object
If a system of guides and pivoting levers is used to move multiple receiving elements, then the interior space is utilized effectively, but the design becomes mechanically complex
Solution Approach 1:
The guide devices are designed to move shelf sections along circular arc trajectories instead of complex multi-axis movements. This curved path simplifies the mechanical design by using a single rotational degree of freedom per shelf section, reducing the number of components while still achieving effective utilization of the corner cabinet's interior space.
3Adaptability or versatility
If the second shelf section is rotated 180 degrees with a control device, then the storage elements can be moved, but the control device must manage complex movement and parts of interior space remain unused
Solution Approach 1:
Instead of rotating the second shelf section 180 degrees through a complex control device, the invention uses a guide device that moves the shelf section along a circular arc trajectory. This approach achieves the same adaptability of positioning with a simpler mechanical structure that requires no active control device, while simultaneously improving interior space utilization.
4Device complexity
If a multi-part shelf with circular arc trajectory guidance is used, then the design is simple and robust, but the shelf area and space utilization must be maximized
Solution Approach 1:
The multi-part shelf design segments the storage system into multiple sections that move along circular arc trajectories. This segmentation enables simple and robust guide device design while maximizing the total shelf area by allowing each section to access different spatial zones within the corner cabinet, thereby achieving both design simplicity and area maximization simultaneously.
Data Source
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AI summary
The invention relates to a pull-out device for a cabinet with a multi-part shelf that can be moved between a storage position and an extended position, comprising a first shelf section and at least one second shelf section, with a first guide device supporting the first shelf section and a second guide device supporting the second shelf section, wherein the pull-out device has a coupling device movably connecting the first shelf section and the second shelf section, which is pivotably fixed to the first shelf section about a coupling pivot axis, characterized in that the second shelf section is pivotably fixed to the second guide device about a pivot axis and the second guide device is designed to guide the second shelf section in a circular arc-shaped path during its movement between the storage position and the extended position.