Self-supporting Device Carrier for Cable Ducts
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Solution Overview
Problem
Existing methods for mounting electrical installation devices in cable routing ducts are time-consuming and require drilling holes in the wall, making repositioning complex and invasive.
Innovation Solution
A self-supporting device carrier with a base part and apron that uses latching elements and a locking device to attach to the duct without drilling, allowing easy repositioning and locking along the duct without leaving holes or fasteners on the wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device carrier is attached to the wall using conventional fasteners and drill holes, then the mounting is secure and stable, but the assembly process becomes time-consuming and repositioning becomes complex
Solution Approach 1:
The patent replaces the conventional drilling and screwing mechanical system with a clipping mechanism that engages with cable routing ribs. The base part with apron clips onto the ribs without requiring drill holes or threaded fasteners, eliminating the time-consuming drilling process while maintaining secure attachment through the latching geometry of the clipping mechanism.
Solution Approach 2:
The clipping mechanism is designed to be self-aligning and self-latching. The base part with apron automatically engages with the cable routing ribs through its geometry, requiring no additional fastening operations. The asymmetric clamping leg and guide cylinder create a self-locking effect that secures the mounting without manual intervention beyond the initial clipping action.
2Stability of the object's composition
If the device carrier is attached to the wall using drill holes, then the mounting is firm, but repositioning requires new drill holes and becomes complex
Solution Approach 1:
The mounting system transitions from a static, permanent drilled connection to a dynamic, reversible clipping connection. The base part can be easily detached from and reattached to different positions along the cable routing duct by simply releasing and re-engaging the clipping mechanism with the ribs, enabling flexible repositioning without structural modifications.
Solution Approach 2:
The clipping mechanism designed to engage with cable routing ribs serves multiple functions: it provides secure mounting, allows easy repositioning, and works with the existing rib structure of the cable routing duct. The asymmetric clamping leg and guide cylinder combination creates a universal mounting solution that adapts to the standardized rib geometry found in cable routing systems.
3Strength
If conventional fastening methods are used, then the device carrier is securely attached, but the process requires intervention in the building fabric
Solution Approach 1:
The patent extracts the mounting function from the wall structure itself and relocates it to the cable routing duct system. Instead of drilling into the building fabric (wall), the base part with apron clips onto the cable routing ribs, which are part of the modular duct system. This separates the mounting operation from structural modifications to the building fabric.
Solution Approach 2:
The cable routing ribs serve as an intermediary mounting surface between the wall and the device carrier. The base part with apron engages with these ribs, which are already attached to the wall or duct structure. This intermediary system provides the attachment function without requiring direct intervention in the building fabric, as the ribs act as a pre-prepared mounting interface.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The carrier has a base part (20) shifted upward or downward in relation to a channel lower part (10) in an assembling condition. An apron (28) is formed at a foot side of the base part, and partially or completely covers the channel lower part. The apron includes a locking hook (26) at a side of a channel for locking of the apron to a cable guiding rib (12) of the channel lower part from one side. The apron includes a locking device (24) at the side of the channel for locking the apron with the cable guiding rib from an opposite side.