Wiring Harness Housing With Restricting Groove For Binding Band
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Solution Overview
Problem
Existing wiring harness configurations fail to absorb manufacturing and assembling tolerances, leading to improper assembly and potential deviation of the wire binding position under tensile force due to non-uniform contact of the binding band with the wire.
Innovation Solution
A holding structure featuring an elongated member with a binding band wound and fixed to the member, and an external housing with a restricting groove that locks the binding band, allowing for clearance absorption and uniform contact over the wire's circumference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both the wire and the holding member are bound tightly by the binding band, then the wire is fixed securely to the holding member, but manufacturing tolerances and assembling tolerances cannot be absorbed, preventing proper assembly of the wiring harness and mating component
Solution Approach 1:
The binding band is designed to be movable within the restricting groove, allowing dynamic adjustment to absorb tolerances. The binding band can shift position along the groove to accommodate variations in wire diameter, holding member dimensions, and assembly tolerances, while still maintaining secure fixation. This dynamic capability enables both reliable fixing and tolerance absorption simultaneously.
2Reliability
If the binding band is wound tightly on the wire, then the wire is securely fixed, but the binding band does not contact the wire over the entire circumference, causing binding position deviation under tensile force
Solution Approach 1:
The restricting groove provides an additional dimensional space for the binding band to contact the wire over the entire circumference. Instead of relying solely on circumferential contact, the groove structure enables the binding band to engage the wire along the groove's length, distributing the contact area and preventing position deviation under tensile load while maintaining secure fixation.
Data Source
AI summary
A wiring harness 1 includes a wire 11, a binding band 20 to be wound on and fixed to the wire 11 and a housing 30 to be externally mounted on the wire 11. The housing 30 includes a restricting groove 46 for receiving the binding band 20. A displacement of the wire 11 with respect to the housing 30 is restricted by the binding band 20 being locked to a groove side surface 46A of the restricting groove 46. According to this configuration, manufacturing tolerances and assembling tolerances can be absorbed by setting certain clearances between the binding band 20 and the groove side surfaces 46A. Further, even if a tensile force is applied to the wire 11, the deviation of a winding position of the binding band 20 on the wire 11 can be suppressed.