Mowing Device Two-Part Support Rotating Mowers Transport Width
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Solution Overview
Problem
Large-surface area mowing devices with working widths greater than 10 meters face challenges in road transport due to exceeding maximum transport height and width limits when attempting to fold mowers vertically.
Innovation Solution
The mowing device features a two-part support configuration with pivot joints, allowing mowers to be rotated vertically in the transport position, reducing width and maintaining compliance with transport height and width limits, enabling wider working widths while allowing processing devices to be placed behind without increasing transport width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mowing device is designed with a working width greater than 10 meters using bar-shaped mowers longer than 4 meters, then the mowing performance and working efficiency are improved, but the device exceeds the maximum transport height and width limits when folded vertically
Solution Approach 1:
The patent applies dimensionality change by rotating the mowers from a vertical folded position into a horizontal extended position along the longitudinal axis of the frame during transport. This transforms the spatial arrangement from occupying vertical space to occupying horizontal space, allowing the mowers to be transported without exceeding height limits while maintaining their full length for wide working widths during operation
2Length of moving object
If the mowers are folded vertically for transport to reduce height, then the transport height constraint is satisfied, but the mowers lie next to each other widthwise reducing the effective working width
Solution Approach 1:
The patent resolves this contradiction by changing the spatial dimension in which the mowers are arranged during transport. Instead of folding them vertically (occupying vertical space), the mowers are rotated to extend horizontally along the longitudinal axis of the frame, occupying lengthwise space rather than widthwise space. This allows the full working width to be maintained while satisfying transport height constraints
3Device complexity
If the support is designed as one piece with pivot joints close to each other, then the structural simplicity is maintained, but the mowers cannot be properly positioned in transport without exceeding width or height limits
Solution Approach 1:
The patent applies segmentation by dividing the support into two separate support parts (first support part and second support part) that can move relative to each other. This segmentation allows the mowers to be positioned in different configurations - extending laterally for wide working widths during operation and rotating to extend longitudinally during transport - providing the adaptability needed to satisfy both operational and transport requirements
Data Source
AI summary
A mowing device has an elongate frame with opposing longitudinal ends and two mowing units disposed on opposite longitudinal sides of the frame. Each mowing unit has an elongate support with a first pivot joint (G1) by which a first of the opposing longitudinal ends of the support is hinged on one of the longitudinal sides to pivot about a horizontal rotational axis (A) extending in the longitudinal direction (LR1) of the frame. A bar-shaped mower is hinged on a second the opposing longitudinal ends of the support in order to extend, in a working position, longitudinally horizontally and transversely to the longitudinal direction (LR1). A second pivot joint (G2) provides a rotational axis (A2) that extends vertically, transversely to the first rotational axis (A1) to allow for mower pivoting to a transport position.