Multi-purpose Vehicle ROPS Frame Cover and Headlight Mounting
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Solution Overview
Problem
Multi-purpose vehicles face challenges in providing a cost-effective and efficient supporting structure for a cover body on the lateral outer side of the seat, ensuring sufficient strength for headlight mounting apparatuses, and protecting battery connecting terminals from water intrusion.
Innovation Solution
A multi-purpose vehicle design incorporating a cover member attached to a handrail frame with a frame portion and cover portion, a headlight assembly mounting apparatus with separate attaching plates supporting lamp units, and a battery cover with an elastic member and reinforcing rib to prevent water intrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single attaching plate is used to support both right and left lamp units, then the span of supporting the attaching plate relative to the body is considerably long, but this makes it difficult to secure sufficient support strength of the attaching plate relative to the body
Solution Approach 1:
The single attaching plate is divided into a right attaching plate and a left attaching plate. Each attaching plate supports only one lamp unit, which shortens the span of each attaching plate relative to the body and secures sufficient support strength without requiring an overly complex single-plate design
2Strength
If the body is molded into a complicated shape or additional reinforcing members are provided to ensure high strength for the headlight, then the strength of the headlight as a whole is improved, but this invites cost increase or complexity of arrangement
Solution Approach 1:
The headlight assembly is segmented into modular components: right and left lamp units, right and left attaching plates, and a simple body structure. This segmentation allows each component to be manufactured separately with standard molds and assembly processes, avoiding the need for complicated body shapes or additional reinforcing members while maintaining sufficient strength through proper structural design of individual components
Solution Approach 2:
Instead of reinforcing the entire body structure, the attaching plates are designed with localized strength at critical mounting points. The attaching plates have specific structural features (such as thickness variations, rib structures, or reinforcement zones) only where needed to support the lamp units, rather than requiring the entire body to be molded with complicated reinforcing features
3Adaptability or versatility
If three connecting positions are set between adjacent end portions of right and left lamp units, then the lamp units can be connected to the lamp body, but this requires a large distance between adjacent end portions for adjustment operations
Solution Approach 1:
The connecting positions are segmented between the attaching plates and the lamp units, rather than requiring three positions between adjacent lamp unit end portions. The right and left attaching plates provide mounting positions that allow adjustment operations to be performed on each side independently, eliminating the need for large spacing between adjacent lamp units while maintaining full adjustability
Solution Approach 2:
The attaching plates serve as intermediary components between the lamp units and the body. These attaching plates provide the connecting positions and adjustment mechanisms, acting as mediators that enable optical axis adjustment without requiring direct connection positions between adjacent lamp units, thus reducing the space needed between lamp units
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances production efficiency, reduces costs, provides robust headlight support, and effectively prevents water from reaching battery connecting terminals, reducing corrosion risks.
Implementation Method 1
an elastic member provided in the passage space and configured to prevent intrusion of water while allowing passage of the electric cable
Implementation Method 2
a reinforcing rib formed at a portion of the cover adjacent the upper face of the battery for preventing intrusion of water toward the connecting terminal
Data Source
AI summary
A multi-purpose vehicle includes a rollover protection structure frame (ROPS frame) associated with a seat. The ROPS frame includes right and left front struts, and right and left rear struts. A handrail frame is attached to a lateral outer side of the seat. A cover member is attached to the handrail frame and extends upwards from the handrail frame.