Rotatable Wire Harness Protector for 3D Routing Assembly

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Solution Overview

Problem

Conventional protectors with three-dimensional shapes face difficulties in routing wire harnesses due to varying cylindrical body orientations, requiring multiple jigs for attachment and dimensioning, which complicates the routing workability and increases manufacturing costs.

Innovation Solution

A protector design featuring a first cylindrical body with a cover and a second cylindrical body, where one end of the first body is an inner cylindrical part that rotates within an outer cylindrical part of the second body, allowing for a change in attachment direction between routing and assembly, simplifying the routing process by maintaining a planar shape during routing and forming a three-dimensional shape during assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a three-dimensional shape is obtained at the time of vehicle assembly, then the routing path can accommodate various vehicle requirements, but the attachment direction of covers differs greatly for each cylindrical body, requiring multiple jigs and reducing routing workability

Engineering Contradiction:
Improverouting path adaptabilityVSAvoidrouting workability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The first cylindrical body is designed to rotate relative to the second cylindrical body around the second body's axial direction, enabling dynamic reconfiguration of the protector assembly. This rotation allows the attachment directions of both covers to be aligned during routing work, improving ease of operation, while still achieving the required three-dimensional configuration for vehicle assembly adaptability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotating coupling mechanism serves multiple functions: it enables the protector to achieve various three-dimensional configurations for different vehicle routing requirements, allows alignment of cover attachment directions for simplified routing work, and provides a universal solution that accommodates both adaptability and ease of operation needs

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a three-dimensional shape is obtained at the time of vehicle assembly, then the routing path can accommodate various vehicle requirements, but multiple jigs are required for supporting each cylindrical body, increasing device complexity

Engineering Contradiction:
Improverouting path adaptabilityVSAvoidnumber of jigs
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first and second cylindrical bodies are merged into a single rotatable assembly where the first body can rotate relative to the second body. This merging eliminates the need for separate jigs to support each cylindrical body independently, reducing device complexity while maintaining the ability to achieve various three-dimensional configurations for routing adaptability

Inventive Principle:
Principle #5Merging (Combining)

3Shape

If covers are attached in different directions for each cylindrical body, then the three-dimensional shape is achieved, but the manufacturing process becomes more complex

Engineering Contradiction:
Improvethree-dimensional configurationVSAvoidmanufacturing complexity
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The rotatable connection between the first and second cylindrical bodies allows the assembly to be configured in different orientations after assembly. During manufacturing, both covers can be attached in the same direction, simplifying the manufacturing process, while the rotation capability enables the final three-dimensional configuration to be achieved during installation or adjustment

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20240359643A1protector
Publication Date: 2024.10.31 YAZAKI CORP
  • US20240359643A1 patent drawing
  • US20240359643A1 patent drawing
  • US20240359643A1 patent drawing

AI summary

A protector includes: a first cylindrical body having a first body and a first cover which is attached to the first body in a first attachment direction; and a second cylindrical body having a second body and a second cover which is attached to the second body in a second attachment direction. One end of the first cylindrical body is an inner cylindrical part, and one end of the second cylindrical body is an outer cylindrical part. A rotation angle of the inner cylindrical part changes between a first angle in which the first attachment direction is in a same position as the second attachment direction and a second angle in which the first attachment direction is not in a same position as the second attachment direction and which is in a posture when the first cylindrical part and the second cylindrical part are assembled to the vehicle.