Pivoting Mower Curtain Assembly for Debris Containment
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Solution Overview
Problem
Existing lateral offset mower implements face challenges in effectively containing debris from the cutter bar during operation, particularly in preventing cut crop material from projecting away and ensuring uninterrupted cutting performance when encountering obstacles.
Innovation Solution
A mower implement with a pivotable curtain support apparatus and a break-away mechanism that allows the curtain to rotate relative to the cutter bar, featuring latches and a break-away release to secure or allow rotation about defined axes, ensuring the curtain can pivot without interrupting cutting and facilitating easy service access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the curtain is made fixed and rigid to effectively contain debris, then debris containment is improved, but the ability to pivot around obstacles and adapt to different conditions deteriorates
Solution Approach 1:
The curtain support apparatus transitions from a fixed rigid structure to a dynamic pivotable mechanism. The primary curtain support member is pivotably attached to the pivot head, allowing the curtain to rotate about a vertical axis. This enables the curtain to adapt its position to contain debris while also pivoting around obstacles, resolving the contradiction between effective debris containment and adaptability.
2Stability of the object's composition
If the curtain support apparatus is made fixed and stable, then structural stability is improved, but ease of service access and maintenance deteriorates
Solution Approach 1:
The pivotable connection between the primary curtain support member and pivot head provides both structural stability during operation and ease of service access. The mechanism can be intentionally rotated to disengage from the pivot head, allowing the curtain assembly to be removed for maintenance while maintaining stable containment during normal operation.
Solution Approach 2:
The curtain support apparatus is divided into separable components: the primary curtain support member, the pivot head, and the curtain. This segmentation allows the curtain assembly to be independently removed from the pivot head for service and maintenance while the rest of the mower implement remains stable and operational.
3Manufacturing precision
If the curtain is made non-pivotable to maintain cutting alignment, then cutting precision is improved, but the ability to operate uninterrupted when encountering obstacles deteriorates
Solution Approach 1:
The pivotable primary curtain support member allows the curtain to dynamically adjust its position. During normal operation, the curtain maintains proper alignment for precise cutting. When obstacles are encountered, the entire curtain assembly can pivot about the vertical axis to clear obstacles while the cutter bar continues cutting, ensuring uninterrupted productivity.
Data Source
AI summary
A lateral offset mower implement may include a mower support frame, a pivot head, a curtain support apparatus, and a curtain. The mower support frame has a first end attached to a work vehicle and a second end spaced from the first end along a central longitudinal axis of the mower support frame. The pivot head is coupled to the mower support frame proximate the second end thereof. The pivot head defines a first curtain axis, and the first curtain axis is vertical during operation. The curtain support apparatus has a primary curtain support member attached to the pivot head and extending away from the pivot head to a distal end. The curtain is supported by the curtain support apparatus. The primary curtain support member is pivotably attached to the pivot head for relative rotation between the primary curtain support member and the pivot head about the first curtain axis.