Vehicle Wire Harness Routing Structure with Pivoting Removal-Preventing Portion
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Solution Overview
Problem
Conventional wire harness routing structures in vehicles face challenges in achieving a low height configuration due to the design of belt clamps, which hinder the reduction of the overall routing structure height and complicate the combination process.
Innovation Solution
A routing structure featuring a body portion with a base end side connected to a vehicle body and a leading end side portion that allows the wire harness to be stored in a space between the body portion and the main surface, utilizing a removal-preventing portion with a pivot and pivotal body to prevent the wire harness from being removed, enabling a reduced height configuration and facilitating easy combination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a belt clamp is used to press-deform the wire harness from the upper side to achieve a low height state, then the height of the wire harness is reduced, but the outer periphery of the wire harness is uniformly pressed toward the center portion, causing the wire harness to approach its original round cross-section state and the low height state cannot be maintained
Solution Approach 1:
The clamp is divided into two functional portions: a body portion that provides the clamping structure and a removal-preventing portion that includes a pivotal body with a pressing piece. This segmentation allows the pressing piece to apply localized pressure to maintain the wire harness in a pressed state without causing uniform pressure that would lead to lateral expansion.
Solution Approach 2:
The removal-preventing portion is designed to be movable relative to the body portion, allowing the pivotal body to pivot between a storage position and a pressing position. This dynamic mechanism enables the pressing piece to actively maintain the wire harness in a pressed state, preventing it from returning to its original round cross-section shape.
2Reliability
If a buckle for fixing the belt is disposed immediately below the engagement portion to secure the wire harness, then the wire harness is firmly fixed, but the height of the belt clamp itself is increased, hindering the routing structure from having a low height
Solution Approach 1:
The removal-preventing portion is disposed inside the body portion, with the pivotal body pivoting within the internal space of the clamp. This nested arrangement allows the fixing mechanism to be contained within the overall clamp structure, avoiding additional height increase while maintaining reliable fixing functionality.
Solution Approach 2:
Instead of extending the clamp height vertically to accommodate the buckle, the removal-preventing portion utilizes the internal horizontal space of the body portion. The pivotal body pivots within this internal space, transforming the fixing mechanism from a vertical extension into a horizontal arrangement that does not increase the overall height of the clamp.
3Device complexity
If the wire harness is stored in a space between the body portion and the main surface, then the routing structure achieves a compact configuration, but the wire harness may be removed from the space without proper prevention
Solution Approach 1:
The pivotal body automatically performs dual functions: when in the pressing position, it maintains the wire harness in a pressed state within the space; when in the storage position, it closes the opening to prevent removal. This self-service mechanism eliminates the need for separate locking components, maintaining compactness while ensuring reliable retention.
Solution Approach 2:
The removal-preventing portion can be discarded (pivoted to storage position) when the wire harness needs to be installed, allowing the wire harness to be freely placed in the space. Once installation is complete, the removal-preventing portion is recovered (pivoted to pressing position) to automatically secure the wire harness, preventing unintended removal while maintaining a compact configuration.
Data Source
AI summary
In a vehicle body, a body portion having a base end side portion is engaged with a plate-shaped member and extending along the plate-shaped member toward the leading end side, and a removal-preventing portion for preventing the wire harness stored in a space between the plate-shaped member and the body portion from being removed from the leading end side of the body portion. The wire harness stored in the space is prevented from being removed at the leading end side of the body portion by the removal-preventing portion pivoting according to the storage. By a series of rotations of the removal-preventing portion up to the storage, a pivotal body upper portion of the removal-preventing portion disposed at a high position in a height direction extending from the plate-shaped member is moved to a lower position, thereby reducing the height of the entirety of the routing structure.