Rotating Wire Harness Bracket for Vehicle Body Tolerance Fit
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Solution Overview
Problem
Conventional wire harness fixing members face difficulties in finely adjusting the position due to frictional resistance when sliding, making it challenging to accommodate dimensional errors between fixing target portions of a vehicle body.
Innovation Solution
A wire harness fixing member with a rotation member that allows the second fixing portion to adjust its distance relative to the first fixing portion by rotating, eliminating the need for sliding contact and reducing frictional resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a straight sliding structure is employed where the fixing portion comes into planar contact with the fixing target portion, then dimensional error of the fixing target portion can be accommodated, but frictional resistance increases making it difficult to finely adjust the position of the fixing portion
Solution Approach 1:
The patent inverts the conventional sliding structure by making the fixing portion movable relative to the body portion through rotational movement rather than sliding. The second fixing portion is made movable via a rotation member that rotates about an axis, eliminating planar contact and frictional resistance while maintaining the ability to accommodate dimensional errors through position adjustment.
Solution Approach 2:
The patent introduces dynamic adjustability by allowing the second fixing portion to move relative to the body portion through rotational movement of the rotation member. This dynamic mechanism enables easy position adjustment to accommodate dimensional errors without the frictional resistance inherent in static sliding structures.
2Adaptability or versatility
If the fixing portion is made movable to accommodate dimensional error, then adaptability improves, but the structure complexity increases
Solution Approach 1:
The patent segments the fixing member into distinct functional components: a body portion, a rotation member, and a second fixing portion. This segmentation allows each component to perform its specific function independently, simplifying the overall structure while enabling the necessary movement and adjustment capabilities to accommodate dimensional errors.
Data Source
AI summary
A wire harness fixing member that can easily accommodate dimensional error of a fixing target portion of a vehicle body is provided. A bracket (10), which is one aspect of the wire harness fixing member, includes a first fixing portion (16), a second fixing portion (23), and a rotation member (12) that is rotatably provided, and the second fixing portion (23) is provided on the rotation member (12). A rotation axis (L1) of the rotation member (12) is set so as to be orthogonal to an assembling direction (X axis direction) of the second fixing portion (23) and the height direction (Z axis direction) of the bracket (10). The distance between the second fixing portion (23) and the first fixing portion (16) changes as the rotation member (12) rotates about the rotation axis (L1).