Utility Vehicle Headlight Vibration Control via Dual Frame Attachment

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Solution Overview

Problem

Utility vehicle headlight assemblies vibrate excessively while traveling on wild lands, leading to potential disconnection of wiring and damage to the headlight and grille components, due to inadequate attachment methods.

Innovation Solution

The headlight assemblies are securely attached to both the front grille and the main frame, with convex portions of the headlamp housing engaging with engagement holes on the main frame's front beam, preventing excessive vibration and ensuring stable attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the headlight assembly is attached only to the front grille, then the structure is simple and easy to manufacture, but the headlight assembly vibrates excessively during travel on wild lands

Engineering Contradiction:

Improveattachment simplicityVSAvoidvibration resistance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The attachment system is segmented into two distinct attachment points: one to the front grille and another to the main frame. This segmentation allows each attachment point to serve a specific function - the front grille attachment provides structural support while the main frame attachment anchors the assembly to reduce vibration, resolving the contradiction between simple attachment and vibration resistance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The headlight assembly attachment merges two structural elements (front grille and main frame) into a single integrated mounting system. By combining these two attachment points, the system achieves both the simplicity of using existing structural components and the reliability of reduced vibration through dual anchoring.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If additional vibration-restraining components are added to the headlight assembly, then vibration is reduced, but the vehicle weight increases

Engineering Contradiction:

Improvevibration resistanceVSAvoidvehicle weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The main frame serves a dual function: it provides the structural backbone of the vehicle and simultaneously acts as a vibration-restraining anchor for the headlight assembly. This self-service approach eliminates the need for separate vibration-damping components, achieving vibration reduction without additional weight.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The main frame is utilized for multiple purposes: structural support for the vehicle body and vibration anchoring for the headlight assembly. This multi-functionality allows the system to achieve vibration restraint without adding dedicated vibration-control components, thereby avoiding increased vehicle weight.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9896134B2Utility vehicle

Publication Date: 2018.02.20 KAWASAKI MOTORS LTD

AI summary

A utility vehicle includes a main frame, a front grille, and right and left headlight assemblies each provided between the front grille and a portion of the main frame facing the front grille in an anteroposterior direction of the utility vehicle, and including a front end attached to a rear side of the front grille and a rear end attached to the portion of the main frame.