Drawer Side Frame with Inner Core for Stable Panel Fixation
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Solution Overview
Problem
Existing drawer frame manufacturing methods, such as extrusion, face challenges in fixing side frames to front and rear panels and limit design flexibility due to uniform cross-sections, making it difficult to achieve stable and customizable constructions.
Innovation Solution
The use of a thin-walled casing supported by an inner core with multiple shaped parts held together in a form-fitting manner, allowing for flexible shaping and stable fixation of side frames to panels, with optional reinforcement and adjustable fastening mechanisms for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If extrusion process is used to manufacture side frames, then manufacturing efficiency is improved, but design flexibility and fixing capability are limited due to uniform cross-sections
Solution Approach 1:
The side frame is divided into multiple segments: a thin-walled casing and an inner core with multiple shaped parts. This segmentation allows the inner core to provide structural stability and fixing capability while the casing provides the outer shape, resolving the contradiction between manufacturing efficiency and design flexibility by combining different functional elements
Solution Approach 2:
The side frame uses a composite structure combining a thin-walled metal or plastic casing with an inner core made of plastic shaped parts. This composite approach enables the outer casing to be manufactured efficiently while the inner core provides customizable shaping and fixing features, thus achieving both productivity and adaptability
2Quantity of substance
If thin-walled casing is used without sufficient support, then material usage is reduced, but structural stability and noise dampening are compromised
Solution Approach 1:
The thin-walled casing is nested around the inner core with multiple shaped parts. This nesting arrangement allows the lightweight casing to benefit from the structural support of the inner core, achieving material reduction while maintaining stability through the form-fitting arrangement of the core components
Solution Approach 2:
The thin-walled casing acts as a flexible shell that is supported by the rigid inner core. This combination allows the use of thin materials for the casing while the inner core provides the necessary structural stability and noise dampening, resolving the contradiction between material reduction and stability
3Strength
If welded construction is used for side frames, then structural strength is improved, but manufacturing complexity and noise generation are increased
Solution Approach 1:
The inner core with multiple shaped parts acts as an intermediary element that provides structural strength and fixing capability without requiring welding. The form-fitting arrangement of the shaped parts creates a stable construction that eliminates the need for complex welding operations, thus reducing manufacturing complexity while maintaining strength
Solution Approach 2:
The welding process is replaced by a mechanical form-fitting arrangement of the inner core shaped parts. This substitution eliminates the complexity of welding operations while maintaining structural integrity through the interlocking design of the core components, thereby reducing manufacturing complexity
Data Source
AI summary
The invention relates to a drawer comprising two side panels, a bottom, a back wall and a front panel, wherein at least one side panel has a thin-walled case, which is supported by an inner core, wherein the inner core has at least two shaped parts, which are interlockingly held against each other.