Wire Harness Band with Criss-Cross Winding for Position Stability
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Solution Overview
Problem
Existing wire harness binding structures fail to maintain consistent fastening positions, especially when used with electric wires coated in hard materials like fluororesin, leading to instability in wire branching structures due to displacement of the band.
Innovation Solution
A binding structure for a wire harness featuring a belt-shaped band section with a first winding portion shifted forward and a second winding portion intersecting in a criss-cross arrangement around the electric wires, counteracting displacement forces in both directions to stabilize the band's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single winding band is used to bind electric wires, then the band structure is simple, but the band may slide on hard-coated wires causing displacement of the fastening position
Solution Approach 1:
The band is divided into multiple winding portions (first winding portion and second winding portion) that wind in opposite directions. This segmentation allows each portion to counteract sliding forces in different directions, preventing displacement of the fastening position while maintaining a relatively simple overall band structure.
Solution Approach 2:
The first and second winding portions act as counterbalancing elements, with each portion's fastening force counteracting the sliding force that would cause displacement in its direction. This creates a balanced system where displacement-causing forces in both directions are neutralized, stabilizing the fastening position.
2Force
If the band winds in a single direction, then the fastening force is concentrated in one direction, but displacement forces in the opposite direction cannot be counteracted
Solution Approach 1:
The band employs asymmetric winding with the first winding portion winding in a forward direction and the second winding portion winding in a return direction. This asymmetric yet balanced configuration ensures that fastening forces are distributed to counteract displacement forces from both directions, achieving stable positioning.
Solution Approach 2:
The dual-directional winding creates a dynamic balance system where the fastening forces from both winding portions work together to counteract external displacement forces. This dynamic force distribution maintains stability under varying external conditions.
3Strength
If the band is used with hard-coated electric wires, then the wire insulation is durable, but the band slides on the wire surface causing inconsistent fastening positions
Solution Approach 1:
The first and second winding portions are configured to apply fastening forces in advance to counteract any potential sliding forces before displacement can occur. This preliminary counteracting action ensures consistent fastening positions even on hard-coated wires that are prone to band sliding.
Solution Approach 2:
The invention changes the winding configuration parameters by introducing dual-directional winding portions with different winding directions. This parameter change transforms the single-direction fastening into a multi-directional force system that effectively grips hard-coated wires and prevents sliding, achieving consistent fastening positions.
Data Source
AI summary
A binding structure for a band for a wire harness prevents displacement of a band fastening position. A band (10) has a belt-shaped band section (12) by which electrical wires (80) are bound. The band section (12) includes a winding portion (14) wound around an outer periphery of the electrical wires (80) bundled together in a manner that the winding portion (14) is shifted away from a binding start point in a forward direction along a lengthwise direction of the electrical wires, and a winding portion (15) intersecting with the winding portion (14) in the forward direction and wound around the outer periphery in a manner that the winding portion (15) is shifted toward the binding start point in a return direction opposite to the forward direction.