Wiring Harness Protector Bulging Part Absorbs Slack
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Solution Overview
Problem
Conventional harness protector structures for links suffer from wiring harness slack at intermediate shafts, leading to interference and reduced durability when rotated, and bent parts project outward, causing damage or noise.
Innovation Solution
A harness protector structure with a bulging part having a wide opening on one end of the protector, allowing the wiring harness to pass through and absorb slack, reducing bending stress and preventing external interference by guiding the harness through a widened diameter path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wiring harness is arranged along the link with conventional protectors, then the harness is protected during rotation, but the harness slackens and projects at the intermediate shaft part causing interference with the outside
Solution Approach 1:
The patent introduces a bulging part that extends in the radial direction from the protector body, creating a three-dimensional space that accommodates the wiring harness slack. This dimensional extension allows the harness to be absorbed within the protector structure rather than projecting outward to interfere with other components.
Solution Approach 2:
The wiring harness slack is nested within the bulging part of the protector. The harness is guided into the bulging part through a wide opening, and the slack is contained inside this extended portion, preventing external interference while maintaining protection.
2Adaptability or versatility
If the wiring harness is bent with a small radius between protectors during large link rotation, then the harness can accommodate the rotation range, but the bending durability of the wiring harness is deteriorated
Solution Approach 1:
The bulging part extends radially outward, providing additional space that increases the bending radius of the wiring harness. By guiding the harness through and into this extended portion, the harness follows a larger curvature path, reducing bending stress and improving durability while maintaining full rotation capability.
Solution Approach 2:
The wide opening at the bulging part is designed in advance to guide the wiring harness into the protected zone before sharp bending occurs. This preliminary guidance ensures the harness enters the bulging part smoothly, preventing small-radius bending at critical locations during rotation.
3Ease of operation
If the bent part of the wiring harness is allowed to project outward, then the harness has sufficient slack for rotation, but the projected slack causes damage or noise
Solution Approach 1:
The wiring harness slack is nested within the hollow interior of the bulging part. The wide opening allows the harness to be guided into this containment space, where the slack is absorbed and prevented from projecting outward. This eliminates the source of damage and noise while preserving rotation flexibility.
Solution Approach 2:
The bulging part acts as an intermediary structure between the wiring harness and the external environment. It provides a transition zone that absorbs the harness slack and prevents direct contact between the projected harness and other components, thereby eliminating damage and noise.
Data Source
AI summary
A harness protector structure for a link is provided, by which the durability of a bent part of a wiring harness is improved and interference with the outside is prevented when the wiring harness is rotated and bent by using a link. The harness protector structure includes: a support part; a link rotatably connected to the support part; a protector provided on the link; and a bulging part having a wide opening opened at one end-side of a body part of the protector, wherein a wiring harness is arranged from the support part into the protector, wherein when the link is rotated, a following part of the wiring harness, which follows a bent part of the wiring harness, passes through the bulging part from the opening, and the wiring harness is guided to the outside from the body part while a slack of the wiring harness is absorbed.