Mudguard Bracket Detector Attachment Structure

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Solution Overview

Problem

In vehicles equipped with detectors like blind spot monitoring radars, the mudguard can interfere with and damage the detector due to vibrations, especially when the detector is placed near the rear of the mudguard, and it is challenging to position the detector away from the mudguard due to the presence of other components like relay boxes and reservoir tanks.

Innovation Solution

A detector attachment structure that includes a mudguard bracket fixed to the vehicle body frame, with the detector attached to this bracket, allowing it to vibrate integrally with the mudguard and preventing interference, and additional configurations such as a cab rear member and lower bracket portions to further secure the mudguard bracket and detector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the detector is disposed near the rear of the mudguard, then the detector can be positioned in a compact space, but the mudguard may interfere with the detector due to vibration and cause damage

Engineering Contradiction:
Improvespace utilizationVSAvoiddetector safety
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The detector is integrated with the mudguard bracket, forming a unified structure where the bracket serves both to support the mudguard and to mount the detector. This merging of functions allows the detector to be positioned close to the mudguard while being protected from vibration interference through integral vibration coupling.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mudguard bracket acts as an intermediary structure between the mudguard and the detector. By fixing the detector to the bracket rather than directly to the vehicle body, the bracket mediates the vibration transmission, allowing the detector to vibrate integrally with the mudguard and preventing harmful interference.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the detector is disposed away from the rear of the mudguard to avoid interference, then the detector can be protected from vibration damage, but it becomes difficult to position the detector due to other components like relay boxes and reservoir tanks occupying the space

Engineering Contradiction:
Improvedetector safetyVSAvoidspatial arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Instead of positioning the detector solely in the front-rear direction relative to the mudguard, the solution utilizes the vertical dimension by extending the mudguard bracket upward from the vehicle body frame. This allows the detector to be mounted at an elevated position that avoids interference with the mudguard while also clearing other components like relay boxes and reservoir tanks.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The mudguard bracket is segmented into multiple portions (upper bracket portion, vertical bracket portion, lower bracket portion) that can be independently positioned and configured. This segmentation allows flexible spatial arrangement to accommodate the detector in an optimal position that avoids interference from both the mudguard and other vehicle components.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the detector is fixed to a separate bracket extending from the vehicle body frame, then the detector can be positioned away from the mudguard, but the structure becomes more complex and the detector may still be affected by relative vibration

Engineering Contradiction:
Improvedetector stabilityVSAvoidbracket structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detector mounting function is merged with the mudguard support bracket. Rather than using a separate detector bracket, the mudguard bracket itself is configured to support both the mudguard and the detector, reducing structural complexity while ensuring the detector vibrates integrally with the mudguard.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mudguard bracket is designed as a multi-functional component that simultaneously supports the mudguard, positions the detector, and provides vibration coupling between the two. This universal structure eliminates the need for separate mounting brackets and ensures coordinated vibration behavior.

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

Data Source

PatentUS12172701B2Detector attachment structure for vehicle
Publication Date: 2024.12.24 ISUZU MOTORS LTD
  • US12172701B2 patent drawing
  • US12172701B2 patent drawing
  • US12172701B2 patent drawing

AI summary

Resin plate-shaped mudguards 11 are disposed on vehicle width direction outer sides of left and right side members 7 below a cab. A cab rear member 12 is fixed to a vehicle body frame 5 and extends upward from the vehicle body frame 5 to support a rear end side of the cab from below. Mudguard brackets 17 for supporting the left and right mudguards 11 are fixed to an upper end portion of a support member 15L of the cab rear member 12. The mudguard 11 is disposed forward of the mudguard bracket 17 and supported by the mudguard bracket 17. A BSM radar 10 detects information of an object around a vehicle, is disposed on a vehicle width direction outer end portion behind the mudguard 11, and is fixed to a second bracket 19 of the mudguard bracket 17 via a radar bracket 20.