Drawer Ejection Guide Rail for Precise Cabinet-Floor Positioning
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Solution Overview
Problem
Existing ejection devices for movably mounted furniture parts, such as drawers, require complex and labor-intensive measurement and assembly processes for precise positioning, which can lead to malfunctions and inefficiencies, especially when dealing with drawers of different nominal lengths or varying furniture body constructions.
Innovation Solution
A positioning device with a guide element that runs in sections along the cabinet floor, allowing the carrier element to be slidably mounted and positioned relative to the guide, enabling easy alignment and attachment, and incorporating a spacer for ensuring the correct triggering path, thus simplifying the assembly process and accommodating various drawer lengths and furniture configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed and immovable first fastening device is fastened to the carcass floor and a second fastening device is fastened to the rear wall of the carcass, then the depth position of the ejection device can be adjusted in relation to the movable furniture part, but the adjustment only takes place in a relatively small area and the assembly effort is relatively high
Solution Approach 1:
The positioning device is divided into separate functional components: a guide element that defines the positioning path and a carrier element that carries the ejection device. This segmentation allows the guide element to be independently positioned and fixed, while the carrier element can be adjusted along the guide, simplifying the overall assembly process compared to fixing two fastening devices simultaneously.
Solution Approach 2:
The guide element acts as an intermediary between the cabinet base and the ejection device. It provides a predefined guiding path that mediates the positioning relationship, eliminating the need for complex measurements and adjustments between multiple fastening devices while ensuring accurate positioning.
2Reliability
If the ejection lever is positioned too far from the rear wall of the drawer, then the ejection lever cannot develop its full ejection effect, but if the ejection lever is positioned too close to the rear wall, a malfunction can occur in an ejection device with touch-latch functionality
Solution Approach 1:
The guide element is pre-configured with a guiding path that has been optimized in advance to ensure the ejection device is positioned at the correct distance from the drawer rear wall. This preliminary design of the guiding path eliminates the need for precise manual positioning during assembly, ensuring reliable ejection functionality while preventing malfunctions in touch-latch systems.
Solution Approach 2:
The guide element can be designed with different guiding path configurations to accommodate different drawer types and ejection device requirements. By changing the geometric parameters of the guiding path, the system can optimize the positioning for various ejection scenarios while maintaining reliable functionality.
3Ease of manufacture
If the guide element has a guide running in the depth direction of the cabinet floor, then the carrier element can be displaceably mounted for positioning with the least possible measurement and assembly effort, but the guide element needs to be precisely positioned relative to the cabinet base
Solution Approach 1:
The guide element incorporates features such as positioning protrusions or reference marks that enable self-positioning on the cabinet base. This self-service mechanism allows the guide element to automatically align correctly during assembly, reducing the need for external measurement and positioning tools while ensuring precise placement.
Data Source
Figure 1~1A
Figure 2~2A
Figure 3~3A
AI summary
Positioning device (1) for positioning a pushing-out device (2) for pushing a movably mounted furniture part (3) out of a closed end position relative to a basic furniture structure (4), having a guide element (5), which is to be fastened on a substantially horizontally running base (6) of the basic furniture structure (4), wherein a carrier element (7) of the pushing-out device (2) can be positioned by the guide element (5), and wherein the guide element (5) has at least one guide (8) which, in the installed position, runs, at least in part, along the depthwise direction (T) of the base (6) and is intended for bearing the carrier element (7) in a displaceable manner.