Attachment part for fastening to a panel element
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Solution Overview
Problem
Existing panel attachment systems in cooking appliances face challenges such as limited design freedom, high installation costs, and complex assembly processes due to the need for visible attachments and the use of adhesives with long drying times.
Innovation Solution
A panel attachment system featuring a base body, guiding, and counter-guiding elements that allow for a single-step assembly by moving the fastening element away from the base body and engaging it with the panel element, eliminating the need for adhesives and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional attachments are fastened to the cover plate carrier using complex fasteners such as screws, locking and bending tabs, snap hooks, or eyelets, then the attachment is securely fastened, but the assembly process becomes complex and requires multiple process steps
Solution Approach 1:
The attachment device is divided into two functional parts: a base body and a fastening element. The fastening element can move relative to the base body between a retracted position (for transport) and an extended position (for fastening). This segmentation allows the fastening function to be separated from the mounting structure, enabling simple pressing assembly while maintaining secure fastening capability.
Solution Approach 2:
The fastening element is designed to be dynamically movable relative to the base body during assembly. When the attachment device is pressed against the cover plate carrier, the fastening element automatically extends from the base body to engage with the cover element, then retracts back into the base body. This dynamic movement transforms a complex multi-step assembly into a single pressing action.
2Ease of manufacture
If wet adhesive is used for attachment to the cover plate carrier, then the attachment can be applied, but long drying times and high assembly costs result
Solution Approach 1:
The invention replaces chemical adhesive bonding with a mechanical fastening system. The fastening element extends to engage with the cover element through mechanical interlocking, eliminating the need for wet adhesive and its associated long drying times. The mechanical engagement provides immediate secure attachment without waiting for chemical curing.
Solution Approach 2:
The fastening element performs the fastening function automatically when the attachment device is pressed onto the cover plate carrier. The mechanical engagement occurs self-actuatingly without requiring external adhesive application or drying processes, making the assembly process faster and more cost-effective.
3Adaptability or versatility
If recessed switch handles are installed on a self-supporting switch panel, then design requirements are met, but additional design elements must be added to cover mounting attachments, necessitating additional process steps such as welding or bonding
Solution Approach 1:
The fastening element nests within the base body during transport and storage, then extends outward during assembly to engage with the cover element, and finally retracts back into the base body. This nesting arrangement allows the fastening mechanism to be compact when not in use, eliminating the need for additional design elements to conceal visible attachments, thus maintaining design freedom for recessed switch handles.
Solution Approach 2:
The fastening element is pre-positioned within the base body in a retracted state, ready for immediate deployment. When assembly is required, the fastening element extends automatically upon pressing, eliminating the need for additional welding or bonding steps that would be required to conceal attachments in traditional designs.
Data Source
Figure 1
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Figure 4~9
AI summary
The invention relates to an attachment part (23) for fastening to a diaphragm element (4), comprising a base body (24), a guide and guide counter element (31, 34, 36, 39) and a fastening element (27, 28), which is guided with the aid of the guide and guide counter element (31, 34, 36, 39) in such a way that, when the attachment part (23) is mounted on the diaphragm element (4), it moves away from the base body (24) and engages with the diaphragm element (4) to fasten the attachment part (23) to the diaphragm element (4).