Quick Hitch Linkage for Implement Connection
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Solution Overview
Problem
Working implements that cannot incline their engagement devices pose a challenge for connection to a quick hitch on a vehicle body, making it difficult to attach them via a three-point linkage system.
Innovation Solution
A quick hitch system with a movable linkage that allows adjustment in height and inclination, coupled with a connection assist frame, enables easy attachment of working implements by allowing the quick hitch to incline and lock at a suitable position, facilitating connection without requiring the implement to be inclined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the working implement is required to incline to locate its engagement device for connection to the quick hitch, then the connection can be achieved with a fixed quick hitch system, but working implements that cannot incline cannot be properly connected
Solution Approach 1:
The quick hitch is made dynamically adjustable in inclination angle through a linkage system with movable arms. The inclination angle can be changed during operation to match different working implements, transforming a static connection point into a dynamic one that adapts to various implement configurations.
Solution Approach 2:
The inclination angle parameter of the quick hitch is made variable through the linkage mechanism. By adjusting the angle parameter to different values, the system can accommodate working implements with different engagement device positions, including those that cannot incline at all.
2Adaptability or versatility
If the quick hitch is made fixed in position and inclination, then the structure is simple, but it cannot accommodate working implements with different engagement device locations
Solution Approach 1:
The quick hitch system is segmented into multiple independent linkage arms (first and second linkage arms) that can adjust independently. This segmentation allows each arm to be optimized for specific adjustment functions while maintaining overall system manageability despite the added complexity.
Solution Approach 2:
The linkage system serves multiple functions: it adjusts the inclination angle, positions the quick hitch at different heights, and accommodates various working implement types. This multi-functionality justifies the increased complexity by providing universal adaptability across different implement configurations.
3Ease of operation
If the engagement device of the working implement is located at an appropriate position, then connection is straightforward, but the implement may be inclined which is not acceptable for some implements
Solution Approach 1:
Instead of requiring the working implement to incline to match a fixed quick hitch (traditional approach), the invention inverts the approach by allowing the quick hitch to incline to match the implement's fixed engagement device position. This reversal solves the problem for implements that cannot be inclined.
Data Source
AI summary
A working vehicle comprises a vehicle body, a quick hitch, a working implement connected to the vehicle body via the quick hitch, and a linkage interposed between the quick hitch and the vehicle body. The linkage is movable to raise and lower the quick hitch so as to locate the quick hitch at an optional height. The quick hitch can be inclined to a certain degree in a pitching direction of the vehicle body at the optional height defined by the linkage.