Screen Assembly for Work Vehicle Cab with Integrated Channels

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Solution Overview

Problem

The existing methods for coupling screens to work vehicle cab frames are costly and time-consuming, requiring multiple fasteners and/or welded connections, which complicate the manufacturing process and the removal of screens for access to windows.

Innovation Solution

A screen assembly with integrated window and screen channels, supported by frames that extend around the opening, utilizing a fastening assembly to secure the screen to the frame, allowing for easy removal and replacement by translating the screen along the frame's open end, reducing the need for multiple fasteners and welded connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple fasteners and welded connections are used to couple the screen to the cab frame, then the screen is securely attached and blocks objects effectively, but the manufacturing cost increases and the removal process becomes time-consuming

Engineering Contradiction:
Improvescreen attachment securityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The frame is segmented into distinct portions: a first frame portion with a screen channel configured to receive the screen, and a second frame portion with fastening assemblies. This segmentation allows the screen to be securely held by the channel structure while enabling simplified attachment/detachment through the fastening assemblies, reducing the need for extensive welding or multiple fasteners across the entire frame.

Inventive Principle:
Principle #1Segmentation

2Reliability

If multiple fasteners and welded connections are used to couple the screen to the cab frame, then the screen is securely attached, but the removal process requires grinding and drilling which is expensive and time-consuming

Engineering Contradiction:
Improvescreen attachment securityVSAvoidscreen removal time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By dividing the frame into functional portions with dedicated fastening assemblies, the screen can be quickly released by simply removing these assemblies without requiring grinding or drilling operations. The segmented design isolates the attachment mechanism to specific locations, enabling rapid screen removal and replacement.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If a single integrated frame with screen channel is used, then the manufacturing process is simplified and cost is reduced, but the screen may lack secure attachment

Engineering Contradiction:
Improvemanufacturing costVSAvoidscreen attachment security
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The frame integrates multiple functions into a unified structure: the screen channel provides secure receipt and positioning of the screen, while fastening assemblies attached to the frame provide additional security. This merging of the channel structure with fastening capabilities maintains manufacturing simplicity while ensuring reliable screen attachment.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of manufacture

If the screen is directly coupled to the cab frame without an integrated frame structure, then manufacturing is simpler, but access to windows requires removing the entire screen assembly which is cumbersome

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidwindow access convenience
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The frame is segmented into portions, with the second frame portion containing fastening assemblies that can be independently removed. This allows the screen to remain in place while providing access to windows, as the fastening assemblies can be detached without removing the entire screen or frame structure.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10974574B2Screen assembly for a work vehicle cab
Publication Date: 2021.04.13 BLUE LEAF I P INC
  • US10974574B2 patent drawing
  • US10974574B2 patent drawing
  • US10974574B2 patent drawing

AI summary

A screen assembly for a work vehicle cab includes a screen configured to cover at least a portion of an opening in the work vehicle cab. The screen assembly also includes a frame having at least one window channel and a screen channel. The at least one window channel is configured to support at least one window, the screen channel is configured to receive the screen, and the frame extends about a portion of a periphery of the opening.