Acute-Angle Wiring Fixing Member for Compact Harness Retention
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Solution Overview
Problem
Conventional wiring fixing members for wire harnesses in vehicles become larger as the number of wires increases, necessitating a smaller design to accommodate thicker wire harnesses effectively.
Innovation Solution
A wiring fixing member with a base portion, holding walls, retaining portions, and fixing portions that allow the corrugated tube to be passed through an opening at an acute angle, enabling a compact design while maintaining secure retention and preventing disengagement through engagement with a mating member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of wires in the wire harness is increased, then the wire harness can supply power to more electronic equipments, but the holding member increases in size
Solution Approach 1:
The patent applies nesting by placing the wire harness inside a cylindrical holding member with a corrugated tube structure. The holding member provides internal containment while maintaining a compact external footprint, allowing the wire harness to be nested within the holding member's internal volume rather than expanding the external dimensions proportionally with the number of wires.
Solution Approach 2:
The patent transitions from a flat or linear arrangement to a three-dimensional cylindrical structure. The holding member utilizes the radial dimension by creating a bellows-shaped corrugated tube that expands in volume while maintaining a controlled external envelope, allowing the wire harness to be organized in three-dimensional space rather than requiring proportional increases in all linear dimensions.
2Volume of stationary object
If the holding member is designed to be smaller, then the design footprint is reduced, but the retention of the wire harness may be compromised
Solution Approach 1:
The patent employs a cylindrical holding member with a bellows-shaped corrugated tube structure. The curved, three-dimensional geometry provides uniform radial support and retention for the wire harness, distributing mechanical stresses evenly around the circumference. This curved structure maintains retention effectiveness while achieving a more compact footprint compared to flat or angular designs.
Solution Approach 2:
The holding member combines a rigid cylindrical outer structure with an inner corrugated tube structure. This composite construction provides both the structural integrity needed for secure retention and the compact geometry required for reduced footprint. The rigid outer cylinder maintains overall shape and positioning, while the corrugated inner tube provides flexible retention for the wire harness.
Data Source
AI summary
A wiring fixing member for fixing a receiving member, receiving wiring therein, to a mating member includes a base portion, a pair of holdingwalls which are formed on and project upwardly from the base portion, and can hold the receiving member therebetween in a manner to position the receiving member, and a pair of retaining portions which extend respectively from the pair of holding walls, and can retain the receiving member held by the pair of holding walls, the pair of retaining portions defining an opening therebetween which intersects a longitudinal direction of the receiving member, held by the pair of holding walls, at an acute angle.