Work Vehicle Load Deck Elastic Guide and Pedal Stopper
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Solution Overview
Problem
Existing work vehicles with pivotally liftable load carrying decks face issues with loads jumping over the front wall and dropping into gaps between the deck and the driving section, and pedal operational tools are prone to lateral displacement and operational reliability issues.
Innovation Solution
The implementation of a plate-like elastic member extending from the load carrying deck's front wall to prevent loads from jumping over and a stopper and inhibiting portion configuration in the pedal operational tool to prevent lateral displacement and ensure proper pivotal movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a gap is provided between the front wall of the load carrying deck and the rear end portion of the driving section to prevent interference during pivotal lifting, then mutual interference is prevented, but loads may jump forwardly over the front wall and drop into the gap
Solution Approach 1:
A guide member is introduced as an intermediary component between the load carrying deck and the driving section. This guide member extends forwardly upward from the front wall of the load carrying deck and guides loads rearwardly and downwardly along its slope, preventing loads from dropping into the gap while maintaining the necessary clearance for pivotal lifting motion
Solution Approach 2:
The guide member is positioned at an upward slope extending forwardly from the front wall, utilizing a three-dimensional configuration. This dimensional arrangement allows loads to be guided along the slope back onto the deck, effectively preventing drops into the gap while preserving the horizontal clearance needed for lifting operations
2Ease of operation
If the pedal plate is allowed to pivot freely about the pivot shaft for operational movement, then operational flexibility is achieved, but lateral displacement may occur causing the pedal plate to hook under the stopper portion and fail to return to initial position
Solution Approach 1:
An inhibiting portion is provided that preliminarily prevents lateral pivotal movement of the pedal plate before such movement can cause the pedal plate to hook under the stopper portion. This inhibiting portion restricts excessive lateral displacement while allowing normal operational pivotal movement, ensuring the pedal plate can reliably return to its initial position
Solution Approach 2:
The pedal operational tool is designed with different functional zones: the pedal plate allows free pivotal movement for operation, while the inhibiting portion provides localized constraint against excessive lateral displacement. This local differentiation of movement freedom resolves the contradiction between operational flexibility and reliable return positioning
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
The plate-like elastic member effectively guides loads back onto the deck, preventing them from falling into gaps, while the stopper and inhibiting portions enhance the operational reliability of the pedal tool by preventing unintended pivotal movements and ensuring proper return to the initial position.
Implementation Method 1
a plate-like elastic member extending forwardly upward from an upper end portion of a front wall of the load carrying deck between right and left ends of the deck
Data Source
AI summary
A work vehicle is provided with a driving section (5), and a load carrying deck (6) disposed rearwardly of the driving section (5). The load carrying deck (6) is configured to be pivotally liftable between an elevated posture in which a front end portion of the deck (6) is elevated, and a lowered posture in which the front end portion of the deck (6) is lowered. Between right and left ends of an upper end portion (61a) of a front wall (61) of the load carrying deck (6), there is provided a plate-like elastic member 8 extending forwardly upward.