Tool-Free 3D Front Panel Adjuster for Cupboard Pull-Out Frames
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Solution Overview
Problem
Conventional pull-out devices for narrow cupboards require tool-related, time-consuming assembly processes for aligning and fixing front panels, which is inefficient and costly, especially for devices like 15 cm wide cupboards used for storing towels or baking trays.
Innovation Solution
A 3D adjustable front panel adjuster system that can be attached to the pull-out frame without tools, allowing for height, lateral, and inclination adjustments via manually operated actuators, eliminating the need for a complex pull-out frame with a front vertical column.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tool-related assembly methods with adjusting screws and fastening screws are used, then the front panel can be securely fixed, but the assembly process becomes time-consuming and requires multiple work steps
Solution Approach 1:
The invention extracts the adjustment function from the traditional multi-component fastening system (adjusting screws + fastening screws) and integrates it into a single self-contained adjuster unit. This adjuster unit combines the positioning and fixing functions that were previously separated, allowing the front panel to be both adjusted and secured through one integrated component rather than multiple separate operations.
Solution Approach 2:
The adjuster unit is designed to be self-aligning and self-fixing through its internal mechanism. The unit automatically maintains the front panel in the desired position through its mechanical design, eliminating the need for operators to perform separate alignment and fastening operations with multiple tools. The adjuster serves itself by incorporating both adjustment and fixation capabilities in one component.
2Ease of operation
If a pull-out frame with a front vertical frame column is used, then the front panel can be attached without tools, but the device complexity and manufacturing cost increase
Solution Approach 1:
The invention segments the front panel attachment function from the main pull-out frame structure. Instead of requiring a complex frame with front vertical columns, the attachment function is separated into independent adjuster units that can be mounted on simpler frame structures. This segmentation allows the front panel to be attached without tools while avoiding the need for an overly complex frame design.
Solution Approach 2:
The adjuster unit serves multiple functions: it provides tool-free attachment, enables height adjustment, allows lateral positioning, and ensures secure fixation. By consolidating these multiple functions into a single universal component, the invention eliminates the need for specialized frame structures like front vertical columns, as the adjuster unit itself provides all necessary adjustment and attachment capabilities.
3Ease of operation
If manually operated actuators are used for height, lateral, and inclination adjustments, then the adjustment process becomes simpler, but the device requires additional adjustment mechanisms
Solution Approach 1:
The invention merges the adjustment mechanisms for height, lateral position, and inclination into a single integrated adjuster unit. Rather than having separate mechanisms for each adjustment type, all three adjustment functions are combined in one compact unit with manual actuators that control multiple degrees of freedom simultaneously. This merging simplifies the overall adjustment process while containing the mechanical complexity within a single modular component.
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
The invention relates to a pull-out device for cupboard pull-out parts, comprising a pull-out rack (3) that is arranged so as to move in guide rails (5) in the interior (4) of said cupboard carcass (1), and with fitting parts (6) supported thereupon such as a receiving base, baking tray holder, towel holder, tray or similar, said pull-out rack (3) being transferrable from a storage position lying in the interior (4) of said cupboard carcass into a pull-out position that is moved out of the cupboard carcass (1), a front panel (2) being securable, by means of an upper and a lower retainer, to retainer parts (8, 9) on the rack structure side, and at least the lower rack structure-side retainer part (9) being in the form of a tool-free front panel adjuster that is secured to a fitting part (6) and can be adjusted in a direction parallel to the height extension of the front panel (2), in a direction parallel to the transverse extension of the front panel (2), and in a direction orthogonal to said longitudinal and transverse extensions of the front panel (2) (figure 1).