Mower Deck Height Adjustment Linkage System
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Solution Overview
Problem
Existing height of cut adjustment systems for golf course rough, trim, and surround mowers are cumbersome and time-consuming, requiring multiple adjustments at four points using holes, bolts, spacers, or casters, which hinders efficient height adjustments for varying mowing conditions and grass types.
Innovation Solution
A height of cut adjustment system utilizing linkages between front and rear height of cut arms, with a connecting rod and adjustment lever, allowing simultaneous adjustment of rotary cutting decks across multiple positions, enabling quick changes in cutting height from 0.75 inches to 4.5 inches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional height adjustment mechanisms (holes, bolts, spacers, casters) are used at four adjustment points, then the rotary cutting deck can be secured at different heights, but the adjustment process becomes cumbersome and time-consuming
Solution Approach 1:
The patent combines multiple adjustment points into a single centralized adjustment mechanism. The height of cut arms with notches and locking pins allow the operator to adjust all four corners of the rotary cutting deck simultaneously from one location, eliminating the need to manually adjust each corner separately and significantly reducing adjustment time while maintaining precise height control
Solution Approach 2:
The patent employs movable height of cut arms that can be dynamically positioned at different notches corresponding to various height settings. The locking pins can be quickly engaged or disengaged to lock or release the arms at desired positions, enabling rapid dynamic adjustment between different cutting heights without cumbersome manual operations
2Adaptability or versatility
If multiple spacers or casters are stacked on pins to adjust deck height, then height adjustment is possible, but the mechanism becomes more complex and maintenance-intensive
Solution Approach 1:
The patent segments the height adjustment function into discrete notches on the height of cut arms, each representing a specific height level. This segmentation allows for versatile height adjustment across multiple predetermined positions while simplifying the mechanism compared to stacking multiple spacers or casters, as each arm independently provides its own notched positioning system
Solution Approach 2:
The locking pins act as intermediaries between the operator's adjustment action and the height of cut arms. By engaging with specific notches on the arms, the pins mediate the transmission of positional information and mechanical force, enabling complex height adjustments through simple pin insertion and removal actions rather than complex stacked mechanisms
Data Source
AI summary
A height of cut adjustment system for a rough, trim and surround mower deck includes a first height of cut linkage on a left side of the mower deck and a second height of cut linkage on a right side of the mower deck. A connecting rod extends transversely across a top of each mower deck to connect the pair of height of cut linkages together. A height of cut adjustment lever may be secured to the connecting rod. The height of cut adjustment lever may have teeth that engage notches in a pivot plate at each selected height of cut.