Sliding Window Panel Recessed Mounting for Work Vehicle Cab

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Solution Overview

Problem

Existing work vehicle cab windows are prone to dirt accumulation on the exterior surfaces due to their placement inside the mesh screen, requiring removal for cleaning and lacking effective dust and temperature control, while also lacking secure ventilation and communication options.

Innovation Solution

A window assembly with a sliding panel mounted exterior to the mesh screen, recessed to prevent protrusion and featuring a latch system that allows interior operation and secure positioning, ensuring easy cleaning and enhanced protection from external dirt and unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the window is placed inside the mesh screen, then the window is protected from external dirt, but the exterior surface of the window gets dirty quickly and requires removal for cleaning

Engineering Contradiction:

Improveprotection from external dirtVSAvoidease of cleaning

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent inverts the conventional arrangement by placing the window exterior surface facing outward beyond the mesh screen, rather than inside it. This allows the window to be cleaned from the exterior without removal, while the mesh screen continues to provide protection from debris and pests.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The window assembly is extracted from the interior space and repositioned to the exterior of the mesh screen. This separation allows independent access to the window for cleaning purposes while maintaining the protective function of the mesh screen.

Inventive Principle:

Principle #2Taking out (Extraction)

2Object-affected harmful factors

If the window is placed inside the mesh screen, then the window provides dust and temperature control, but the window cannot be easily accessed for ventilation and communication

Engineering Contradiction:

Improvedust and temperature controlVSAvoidaccessibility for ventilation and communication

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The window is repositioned from an interior location to an exterior location beyond the mesh screen. This inversion enables the window to serve dual purposes: maintaining environmental control when closed and providing accessible ventilation and communication when opened, without requiring removal from its mounting.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of operation

If the window protrudes beyond the exterior surface of the cab, then the window provides better visibility and ventilation, but the window becomes vulnerable to damage from external impacts

Engineering Contradiction:

Improvevisibility and ventilationVSAvoidresistance to external impacts

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The window assembly is nested within a recessed opening in the cab exterior surface. This nesting arrangement allows the window to be positioned optimally for visibility and ventilation while being protected by the surrounding cab structure that recesses into the exterior surface.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The recessed mounting arrangement provides preliminary protection by positioning the window within a protected niche before any external impact can occur. The cab structure surrounding the recess acts as a first line of defense, absorbing or deflecting impacts before they reach the window.

Inventive Principle:

Principle #9Preliminary anti-action

4Adaptability or versatility

If the sliding window panel can be removed from the exterior, then the window provides flexible ventilation options, but the cab becomes vulnerable to unauthorized access and theft

Engineering Contradiction:

Improveventilation flexibilityVSAvoidanti-theft protection

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A latch mechanism serves as an intermediary between the window panel and the cab structure. This latch provides controlled access: it allows the operator to remove the panel for ventilation while simultaneously preventing unauthorized removal that would lead to cab access or theft.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP2419318B1Sliding window for work vehicle cab

Publication Date: 2013.09.18 CLARK EQUIPMENT CO

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AI summary

A cab (10) for a vehicle has an inset mesh screens (20) along opposite side walls (18) that define window openings through which an operator can view the surroundings, and the window opening is covered with a window assembly (32) including a sliding window panel (52). The sliding window panel (52) has a latch assembly (60) that extends through a slot (62) in the mesh screen (20), and a spring loaded knob (72) that will seat in detents (61) in the mesh screen (20) at selected positions along the slot (62). The spring loaded knob (72) is on the interior of the cab (10) and is secured in place. The inset of the mesh screen (20) forms a recessed receptacle for the window assembly (32) so window panels (48, 50, 52) of the window assembly (32) do not project outwardly beyond the side surfaces of the cab (10).