Vehicle Cable Mounting Device with Radial Adjustment
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Solution Overview
Problem
Existing fastening devices for electrical cables in vehicles face challenges in accurately specifying the radial position of the fastening structure due to the requirements of the cable sheathing material and uncontrolled radial position of the overmoulded sensor head, leading to large radial tolerances and undesired torsional stress during installation.
Innovation Solution
A fastening device comprising a multi-part base body with a rib structure that encloses the cable, allowing for detachable and radially movable connection of the fastening element to the carrier, enabling easy adjustment and exchange, and featuring a spring-elastic C-shaped base body for quick assembly and disassembly, which prevents axial movement while allowing radial adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single-piece fastening device is used, then the structure is simple, but the radial positioning precision is poor due to large radial tolerances
Solution Approach 1:
The fastening device is divided into a carrier (base body) and a fastening element that can be detachably connected. The carrier has a first holding structure with a specific radial position, and the fastening element can be easily moved radially to engage with this structure. This segmentation allows precise radial positioning through the holding structure while keeping the overall device relatively simple.
2Ease of operation
If the fastening element is fixed rigidly, then the axial position is stable, but the radial adjustment is difficult and time-consuming
Solution Approach 1:
The connection between the carrier and fastening element is designed to be detachable and radially movable. The fastening element can be easily moved into the desired radial position relative to the carrier, allowing quick radial adjustment during installation. Once positioned, the elements can be securely connected to maintain axial stability.
3Ease of manufacture
If the fastening structure has large radial tolerances, then the device is easier to manufacture, but torsional stress occurs during cable installation
Solution Approach 1:
The carrier acts as an intermediary between the fastening element and the cable. The carrier has a first holding structure at a specific radial position that mediates the connection, ensuring precise radial positioning without requiring tight tolerances on the fastening element itself. This reduces torsional stress on the cable during installation.
4Ease of repair
If the fastening element is integrated with the carrier, then the device is more compact, but the fastening element cannot be easily exchanged
Solution Approach 1:
The fastening device is segmented into a carrier and a separately connectable fastening element. The detachable connection allows the fastening element to be easily exchanged by detaching it from the carrier and attaching a new one. The carrier remains as the permanent base structure, while the fastening element can be replaced as needed.
Data Source
Figure 1~3
Figure 4~6
AI summary
The invention relates to a fixing device (1) for a wire (3), in particular for an electric cable, in a vehicle, comprising a support (20) which encloses the line (3) and which comprises a multi-part base body (22) with at least two partial base bodies (22 A, 22 B), which can be separated from each other at least partially in such a manner that an inner area of the base body (22) can be placed in a pre-mounted state about the wire (3), and which can be connected to each other in such a manner that the base body (22) of the support (20) totally surround the wire (3) when in a mounted state in an annular manner. According to the invention, a fixing structure (26) is embodied on the inner area of the base body (22), said structure, when in the mounted state, fixes the support (20) axially on the wire (3). A securing element (10) comprises a securing structure (19) and a holder (12) which joins the securing element (10) to the support (20) in a detachable manner and so that it can move radially.