Laundry treatment device having a control panel assembly
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Solution Overview
Problem
The assembly of laundry treatment devices with complex control panel assemblies is time-consuming and costly due to the need for accurate alignment and numerous components, and the use of metallic materials can result in sharp edges that pose a risk to users.
Innovation Solution
A simplified control panel assembly where the outer dashboard and drawer seat form a single integral element, coupled to the front wall through a mechanical system, reducing the number of parts and ensuring a seamless, aesthetically pleasing surface with no sharp edges, and using plastic for the dashboard to simplify manufacturing and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If numerous separate components are used to assemble the control panel assembly, then the assembly can be manufactured with standard parts, but the assembly time and overall costs increase
Solution Approach 1:
The patent merges the dashboard and drawer seat into a single integral outer dashboard assembly, eliminating the need for separate components and complex alignment procedures. This unified structure reduces assembly time while maintaining manufacturability through modular integration with the front wall.
2Adaptability or versatility
If multiple pieces are assembled to form the control panel assembly, then the design can be flexible and functional, but the number of spare parts and assembly complexity increase
Solution Approach 1:
The dashboard and drawer seat are combined into a single integral piece, reducing the total number of components from multiple separate parts to one unified assembly. This maintains functional versatility while eliminating assembly complexity and reducing spare parts inventory requirements.
3Strength
If metallic material is used for the front wall and crosspiece, then the structure has high strength and durability, but sharp edges can cause damage to users
Solution Approach 1:
The patent applies different material properties to different regions: the front wall crosspiece maintains metallic construction for structural strength, while the dashboard assembly uses plastic material to provide a safe, non-sharp surface for user interaction. This local differentiation resolves the contradiction between strength and safety.
Solution Approach 2:
The solution employs composite material construction, combining metallic front wall components for structural integrity with plastic dashboard materials for user safety. This multi-material approach allows each material to fulfill its optimal function while mitigating the harmful effects of the other.
4Ease of manufacture
If the control panel assembly is connected from the interior of the casing, then the mounting is simple, but the visible crosspiece edges are exposed and can injure users
Solution Approach 1:
The dashboard and drawer seat are merged into a single assembly that is mounted from the interior, maintaining mounting simplicity. The integrated design ensures that all previously exposed crosspiece edges are now covered or eliminated, providing user safety without complicating the mounting process.
Data Source
AI summary
A laundry treatment device (100) includes a casing (2) with a front wall (4) defining a continuous front surface (4a). The front surface (4a) has a laundry opening (3a) to load and/or unload a laundry treatment chamber (12) contained in the casing (2). The casing (2) includes a panel aperture (15) having an edge defining a closed curve. A control panel assembly (1) is provided for controlling operation of the laundry treatment device (100). The control panel assembly includes an outer dashboard (11) which is structured to be coupled to the front wall (4) at the panel aperture (15) and to be operated by a user. The outer dashboard includes a dashboard external portion (11ext). The portion (11ext) is, in an assembled configuration, external to the casing, visible and accessible to a user. A drawer (63) is provided as well as a drawer seat (61) to house the drawer. The drawer seat is fixed or fixable to the front wall so that the drawer is coupled in a retractable manner to the front wall (4). The drawer seat (61) is an integral piece of the external dashboard portion (11ext) forming an outer dashboard assembly (11ext, 61).