Pivoting Curtain Assembly for Offset Mower Debris Containment
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Solution Overview
Problem
Existing lateral offset mower implements face challenges in efficiently managing debris projection and facilitating easy access for maintenance and service of the cutter bar while maintaining cutting performance.
Innovation Solution
A curtain assembly with a pivotable and break-away mechanism that allows the curtain to rotate relative to the cutter bar, enabling easy access for maintenance and service, while a break-away release mechanism accommodates obstacles without interrupting cutting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the curtain is fixed in position to maintain debris containment, then debris projection is prevented, but access for maintenance and service of the cutter bar is difficult
Solution Approach 1:
The curtain is made dynamically reconfigurable through a latch mechanism that allows it to switch between a closed position (for debris containment) and an open position (for maintenance access). The curtain moves from a fixed static structure to a dynamic one that can change state based on operational needs.
Solution Approach 2:
The curtain's position parameter is changed from fixed to variable. By implementing a latch mechanism with engageable and disengageable states, the curtain can transition between different positional parameters - closed for operation, open for maintenance - thus resolving the contradiction between containment and accessibility.
2Reliability
If the curtain is securely attached to prevent movement during cutting, then cutting performance is maintained, but the curtain cannot accommodate obstacles without interrupting operations
Solution Approach 1:
The curtain assembly incorporates a break-away mechanism that allows the curtain to dynamically respond to obstacles. When an obstacle is encountered, the curtain can break away from its secured position, allowing the mower to continue operating without interruption, thus providing both reliability during normal cutting and adaptability when obstacles are present.
Solution Approach 2:
The curtain assembly is divided into separable components - the curtain itself and the support structure with break-away mechanisms. This segmentation allows the curtain to be independently released from the support structure when obstacles are detected, enabling the system to maintain overall functionality while adapting to varying field conditions.
3Strength
If the curtain structure is rigid to maintain structural integrity, then debris containment is effective, but maintenance and service operations become complex
Solution Approach 1:
The curtain system is segmented into the curtain panel and the support structure with latch mechanisms. This segmentation allows the curtain to maintain structural integrity when closed while enabling easy removal and reattachment during maintenance, thus resolving the contradiction between strength and ease of repair.
Solution Approach 2:
The latch mechanism is pre-configured to facilitate easy engagement and disengagement of the curtain. By designing the attachment system with preliminary consideration for maintenance needs, the curtain can be quickly removed and reattached without complex procedures, maintaining both structural integrity and ease of repair.
Data Source
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Figure 1C
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.