Drawer Pull-Out Guide With Split Lift Support for Quiet Alignment
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Solution Overview
Problem
Conventional drawer extension guides experience noise and deformation issues due to the use of hard materials like metal in the bearing device, which also affect the uniform alignment of joint panels.
Innovation Solution
A softer material is used for the lifting device to reduce noise during the raising of extension rails, while a metallic bearing device supports the drawer in the closed state, ensuring a uniform joint alignment and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a hard material like metal is used for the bearing device to support the drawer in the closed state, then the joint alignment is maintained uniformly and deformation is prevented, but noise is generated during interaction with the extension rail
Solution Approach 1:
The lifting device is divided into two distinct parts: a raising device made of softer material for noise-reduced operation during the raising motion, and a bearing device made of hard material for stable support in the closed position. This segmentation allows each component to be optimized for its specific function without compromise.
Solution Approach 2:
Different material properties are applied to different parts of the lifting device based on local functional requirements. The raising device uses softer material where noise reduction is critical during motion, while the bearing device uses harder material where structural stability and alignment are paramount in the static closed position.
2Object-generated harmful factors
If a soft material is used for the lifting device to reduce noise during raising, then noise is reduced, but the lifting device cannot provide sufficient support in the closed state
Solution Approach 1:
The lifting device is divided into two distinct parts: a raising device made of softer material for noise-reduced operation during the raising motion, and a bearing device made of hard material for stable support in the closed position. This segmentation allows each component to be optimized for its specific function without compromise.
Solution Approach 2:
The support function is extracted from the raising device and assigned to a separate bearing device. This allows the raising device to focus solely on the noise-reduced raising action using softer material, while the bearing device provides the necessary structural support using harder material.
3Stability of the object's composition
If a hard material is used for the bearing device to prevent deformation of rolling bodies, then deformation is reduced, but the rolling bodies still experience deformation during the extension process
Solution Approach 1:
The bearing device is positioned at the anterior end section to provide preliminary support before the rolling bodies are fully engaged during the extension process. This preliminary support prevents deformation of the rolling bodies while maintaining smooth operation throughout the extension motion.
Data Source
AI summary
A drawer pull-out guide includes a basic-structure rail, which can be fastened on a basic furniture structure, and at least one pull-out rail, which is mounted such that it can be displaced relative to the basic-structure rail between an open position and a closed position. At least one lifting device is provided, by which the pull-out rail can be raised relative to the basic-structure rail towards the end of the closing movement. The lifting device has at least a two-part design, including a raising device, for raising the pull-out rail, and a bearing device, for supporting the pull-out rail in the closed position, and the raising device, in the closed position of the pull-out rail, is relieved of the loading of the pull-out rail.