Work Vehicle Hood Retainer Bracket Attachment
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Solution Overview
Problem
The existing hood structure for work vehicles experiences welding distortion issues when attaching the open-position retainer bracket to the upper hood, leading to increased operational inefficiencies due to the need for buffing and distortion elimination.
Innovation Solution
The hood structure incorporates a bent edge portion with enhanced strength, allowing the open-position retainer bracket to be fixedly attached without reinforcement, and includes a gap between the bracket and the hood's top surface to prevent contact and force distribution, simplifying the attachment process and reducing distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the open-position retainer bracket is fixedly welded to the top surface of the upper hood, then the bracket can be securely attached, but welding distortion occurs in the upper hood requiring buffing or distortion elimination
Solution Approach 1:
The bracket is repositioned from the top surface to the rear end portion of the hood, utilizing a different spatial location that avoids the welding distortion problem while maintaining secure attachment through welding to the bent edge portion
2Ease of manufacture
If the bracket is attached to the top surface of the upper hood, then the open-position retainer member can be mounted, but the number of work processes increases due to required buffing and distortion elimination
Solution Approach 1:
The problematic buffing and distortion elimination steps are eliminated from the manufacturing process by changing the attachment location to the rear end portion, where welding can be performed without causing distortion that requires additional finishing operations
Data Source
AI summary
A hood structure of a work vehicle comprise, a hood supported to open and close relative to a vehicle body, the hood having a rear end portion bent toward an interior space of the hood to form a bent edge portion, an open-position retainer bracket attached to the rear end portion of the hood, and an open-position retainer member attached to the open-position retainer bracket to maintain the hood in an open position. The open-position retainer bracket extends cantileverwise forwardly of the hood from an attaching portion of the open-position retainer bracket that is attached to the rear end portion of the hood with a gap being defined between the open-position retainer bracket and a top surface of the hood. The open-position retainer member is attached to an extending end of the open-position retainer bracket.