Rotatable Terminal Cover Riveted to Clamping Screw
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Solution Overview
Problem
Existing installation switching devices face challenges in cost-effectively and simply attaching a terminal cover part to the clamping screw, leading to potential safety risks and increased production complexity.
Innovation Solution
The terminal cover part is rotatably riveted to the terminal screw, utilizing a single rivet pin for a simple and cost-effective attachment, which ensures the cover remains captive and prevents unintentional contact with live parts, while allowing for high-speed production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal cover part is attached to the clamping screw using conventional methods (screwing completely into clamp body or clipping onto circumferential groove), then the cover is secured, but the production cost increases and assembly complexity increases
Solution Approach 1:
The terminal cover part is segmented from the clamping screw assembly, allowing it to be rotatably riveted rather than permanently fixed. This segmentation enables the cover to be attached securely while maintaining simplicity in the overall assembly process, as the rotatable riveting mechanism provides both security and ease of assembly without requiring complex locking features or multiple components.
2Object-affected harmful factors
If the terminal cover part is securely attached to prevent unintentional contact, then safety is improved, but the attachment method becomes more complex and costly
Solution Approach 1:
The terminal cover part is designed to be self-securing through rotatable riveting to the terminal screw. The riveting mechanism allows the cover to automatically secure itself in place while maintaining the ability to rotate, providing both safety and manufacturing simplicity. This self-service approach eliminates the need for additional complex fastening systems or multiple assembly steps, reducing manufacturing costs while ensuring safety.
3Productivity
If a single rivet pin is used for rotatable riveting, then production speed increases and cost decreases, but the attachment security must be maintained
Solution Approach 1:
The terminal cover part is rotatably riveted to the terminal screw, creating a dynamic connection that allows rotation while maintaining secure attachment. This dynamic riveting mechanism uses a single rivet pin that permits rotational movement for high-speed production while still providing sufficient attachment security to prevent unintentional contact. The rotatable nature of the connection enables quick assembly and disassembly on high-speed production machines without compromising safety.
Data Source
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AI summary
The invention relates to a service switching device (1) having a housing (8), comprising a front face (3), an attachment face and a narrow face (6) between them, and having a connecting terminal (10) which is held in a terminal accommodation area, located in the vicinity of the narrow face (6), in the housing (8), which connecting terminal (10) comprises a terminal screw (24), which is accessible from the front face (3), and has an operating end (26) and a terminal end (30) opposite this, also comprising a terminal body (12) having at least one terminal area (20) in which a busbar and/or a connecting conductor can be pressed against the busbar (36) by means of the terminal screw (24), with the terminal body (12) being accessible through a first housing opening (91) in the wall of the narrow face (6), and in which case the at least one terminal area (20) can be covered by a terminal cover part (60), which is coupled to the terminal end (30) of the terminal screw (24), can be driven in the movement direction (50) of the terminal screw (24), and is of such a size that it covers the terminal area, such that it cannot be touched directly, even when the terminal screw (24) is screwed onto the busbar (36). The terminal cover part (60) is riveted to the terminal screw (24) such that it can rotate.