Utility Vehicle Frame Assembly with Detachable Front and Rear Sections

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Solution Overview

Problem

Existing utility vehicles lack a modular chassis design that allows for easy attachment and detachment of sub-frame portions without modifying the main frame, limiting their versatility in supporting various accessories, passengers, and load configurations.

Innovation Solution

A frame assembly for a utility vehicle comprising a front frame section, a main frame section, and a rear frame section with specific members that form a closed portion, which can be coupled to the main frame section, allowing for modular configuration without modifying the main frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a modular frame assembly with detachable sub-frame portions is implemented, then the adaptability and versatility of the utility vehicle is improved, but the device complexity increases due to multiple frame sections and coupling mechanisms

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The frame assembly is divided into distinct modular sections including a main frame portion and multiple sub-frame portions (front sub-frame, rear sub-frame, and intermediate sub-frames). Each sub-frame portion can be independently attached or detached from the main frame through coupling mechanisms, enabling the vehicle to be reconfigured for different applications without modifying the main frame structure.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If sub-frame portions are designed to be detachable without modifying the main frame, then the ease of manufacture is improved, but the reliability may worsen due to additional coupling interfaces

Engineering Contradiction:
Improveease of manufactureVSAvoidreliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

Coupling interfaces and mounting structures are pre-integrated into the main frame and sub-frame portions during manufacturing. These pre-configured coupling mechanisms include reinforced attachment points and alignment features that ensure reliable connections when sub-frames are attached, eliminating the need for field modifications while maintaining structural integrity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12330710B2Frame assembly for a utility vehicle
Publication Date: 2025.06.17 POLARIS IND INC
  • US12330710B2 patent drawing
  • US12330710B2 patent drawing
  • US12330710B2 patent drawing

AI summary

A utility vehicle includes a modular frame which allows the vehicle to be customized for particular applications. The modular frame includes at least a main frame section, a front frame section, and a rear frame section. The main frame section is configured to remain consistent throughout any application of the utility vehicle and is configured to receive various iterations of the rear frame section and the front frame section.