Pull-Out Cupboard Guide Structure for Height Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cupboard pull-outs require two vertical support columns, which impede maximum cabinet depth utilization, affect the usable room height, and result in sluggish movement due to direct loading of cabinet body guides under weight loads.
Innovation Solution
The upper cabinet body guide features movable parts that allow height compensation, relieving weight loads on shelves without stressing telescopic guide parts, maintaining smooth movement and axial mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If two vertical support columns are provided to hold shelves, then structural stability is improved, but cabinet depth utilization is reduced and usable room height is reduced
Solution Approach 1:
The invention extracts the rear vertical support column from the traditional two-column structure, leaving only a single front vertical support column. This removes the obstructive element while maintaining shelf support functionality through alternative means (fastening rods), thereby improving cabinet depth utilization without completely sacrificing structural stability.
Solution Approach 2:
The invention transitions from a two-dimensional frame structure (two columns connected by crossbeams) to a more spatial solution where shelves are directly fastened to the single front column using fastening rods that extend through the column. This dimensional change eliminates the need for rear column support while maintaining structural integrity.
2Strength
If two vertical support columns with crossbeams are used, then shelf support capability is improved, but usable room height is reduced
Solution Approach 1:
The invention removes the upper crossbeam that connects the two vertical columns, as this element directly reduces the usable vertical space in the cupboard. Shelf support capability is maintained through the single front column with fastening rods, eliminating the height-impairing structural element.
Solution Approach 2:
Instead of supporting shelves from below through a rigid frame structure (columns and crossbeams), the invention inverts the approach by using fastening rods that pass through the single front column and support shelves from the front, allowing the rear space to be fully utilized and vertical clearance to be maximized.
3Device complexity
If cabinet body guides directly support shelf weight loads, then structural simplicity is maintained, but movement smoothness deteriorates
Solution Approach 1:
The invention segments the load-bearing function from the movement-guiding function. The single front vertical support column and fastening rods handle the shelf weight loads, while the cabinet body guides (with telescopic elements) are relieved of direct weight bearing and only provide movement guidance. This functional segmentation allows smooth movement even under weight loads.
Solution Approach 2:
The invention introduces fastening rods as intermediary elements between the single front support column and the shelves. These rods transfer the shelf loads away from the cabinet body guides, allowing the guides to focus solely on providing smooth movement guidance without the detrimental effect of direct weight loading.
4Volume of moving object
If a single vertical column with fastening rods is used, then cabinet depth utilization is improved, but manufacturing complexity and assembly precision requirements increase
Solution Approach 1:
The invention changes the fastening mechanism from traditional rigid connections to adjustable fastening rods with hole recesses. The rods can be inserted at different positions and heights, allowing for flexible shelf placement and height adjustment. This parameter variability simplifies assembly by accommodating manufacturing tolerances while maintaining structural integrity.
Solution Approach 2:
The fastening rod system introduces dynamic adjustability to the structure. The rods can be positioned at various hole recesses along the single front column, allowing the shelf support system to adapt to different configurations and tolerance variations, thereby reducing assembly precision requirements compared to fixed rigid connections.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The cabinet drawer has an extraction frame (2) arranged in the interior of a cabinet body (1) in a translationally movable manner. An upper cabinet body guide (6) of the cabinet body has cabinet body guide components (8,9) that are movable relative to each other for height adjustment. A sliding guide is designed as a long hole or a sliding piece for height adjustment of the cabinet body guide components.