Trailed mower with stability control
Pith reviewed 2026-06-24 20:31 UTC · model grok-4.3
The pith
Mower suspension combines actuator with independent compression spring for wheel movement
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
The lift-suspended mower includes a frame, cutting devices, a first wheel, and a first suspension system with an actuator selectively actuable to raise or lower the wheel plus means for permitting wheel movement toward the frame when ground pressure increases, where the means is a compression spring that compresses independently of the actuator, biases the wheel hub link away from the piston, and bears on a collar of the wheel hub link and a collar of the piston or rod.
What carries the argument
The compression spring in the suspension system, which compresses under increased ground pressure independently of the actuator and bears on collars of the wheel hub link and piston or rod.
If this is right
- The wheel yields to higher ground pressure by spring compression alone.
- The actuator maintains its commanded position during such pressure increases.
- The mower can adapt to terrain variations while preserving the actuator-set wheel height.
- Cutting height relative to the frame stays consistent during independent spring action.
Where Pith is reading between the lines
- The mechanism could reduce actuator cycling on mildly uneven fields.
- Similar collar-and-spring layouts might apply to other trailed implements requiring passive compliance.
- The design separates load response from powered adjustment, which could affect maintenance intervals for the actuator.
Load-bearing premise
The compression spring on the wheel hub link collar and piston collar will allow wheel movement toward the frame under increased ground pressure without causing any actuation of the actuator.
What would settle it
A measurement showing that increased pressure on the wheel moves the actuator piston position rather than only compressing the spring.
read the original abstract
1 . A lift-suspended mower for an agricultural vehicle, said lift-suspended mower comprising: a frame; one or more cutting devices that are movably mounted with respect to said frame for cutting crop material on a ground surface; a first wheel mounted to said frame for contacting the ground surface and supporting the frame above the ground surface; and a first suspension system interconnecting the first wheel to the frame, the first suspension system including (i) an actuator that is selectively actuable to either raise or lower to a predetermined degree the first wheel relative to the frame or vice versa, and (ii) means for permitting movement of the first wheel toward the frame when a pressure exerted by the first wheel onto the ground surface increases, said means operating independently of the actuator, wherein the means comprises a compression spring that is configured to compress when pressure exerted by the first wheel onto the ground surface increases, and without causing actuation of the actuator, wherein the first wheel is connected to a wheel hub link, and the compression spring is configured to bias the wheel hub link away from a piston of the actuator, wherein the compression spring bears on a collar of the wheel hub link and a collar of either the piston or a rod that is connected to the piston.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The manuscript is a patent claim describing a lift-suspended mower for an agricultural vehicle. It comprises a frame, movably mounted cutting devices, a first wheel supporting the frame, and a first suspension system. The suspension includes an actuator selectively actuable to raise or lower the wheel to a predetermined degree and an independent compression spring configured to compress under increased ground pressure from the wheel without actuating the actuator. The spring biases the wheel hub link away from the piston and bears on a collar of the wheel hub link and a collar of the piston or connected rod.
Significance. If the described mechanical arrangement functions as claimed, the independent spring provides a means for the mower to respond to ground pressure variations separately from actuator-controlled height adjustment, which could support improved stability on uneven terrain in trailed mower applications.
minor comments (1)
- [Abstract] The single-sentence claim structure in the abstract is grammatically correct but lengthy; sub-numbering of elements (e.g., (a), (b)) would aid readability without altering the technical content.
Simulated Author's Rebuttal
We thank the referee for their review of the manuscript and for the positive recommendation to accept. No major comments were provided in the report.
Circularity Check
No significant circularity
full rationale
The document is a patent claim for a mechanical apparatus with no equations, derivations, predictions, fitted parameters, or self-citations. The description of the frame, cutting devices, wheel, actuator, and compression spring is a direct specification of components and their arrangement. No load-bearing step reduces by construction to its own inputs, as there is no derivation chain or mathematical reduction present.
Axiom & Free-Parameter Ledger
axioms (1)
- standard math Standard behavior of compression springs and hydraulic actuators under load follows established mechanical principles.
discussion (0)
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