Cab Tilt Flag Pin Mounting Assembly
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Solution Overview
Problem
Traditional tilting mechanisms for operator cabs on work vehicles are complex and inefficient when flexible mounts are used, as they fail to effectively balance noise and vibration reduction with service access and roll over protection.
Innovation Solution
A mounting assembly that pivotally connects the operator cab to the vehicle frame, utilizing a flag pin as a motion limiting device for roll over protection and service access, allowing for flexible mounting and easy removal for servicing by rotating the cab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional tilting mechanisms are used with flexible mounts, then noise and vibration reduction is improved, but device complexity increases and service access becomes difficult
Solution Approach 1:
The patent combines the motion limiting function and pivotal connection function into a single flag pin component. The flag pin serves dual purposes: it limits cab travel for roll over protection during normal operation and enables pivotal rotation for service access, thereby reducing device complexity while maintaining noise and vibration reduction through flexible mounts
Solution Approach 2:
The flag pin is designed as a multi-functional component that performs multiple functions: it acts as a motion limiting device for roll over protection, serves as a pivotal connection element for rotation, and enables easy removal for servicing. This multi-functionality eliminates the need for separate mechanisms, reducing overall system complexity
2Ease of operation
If traditional removal methods are used, then service access is improved, but device complexity increases due to multiple mechanisms
Solution Approach 1:
The mounting assembly transitions from a static fixed connection to a dynamic system that can change configuration. The flag pin allows the cab to pivot dynamically between the operating position and service position, enabling easy service access without complex removal mechanisms while maintaining structural integrity during normal operation
3Object-affected harmful factors
If flexible mounts are used for noise reduction, then noise and vibration reduction is improved, but roll over protection becomes challenging
Solution Approach 1:
The flag pin is designed with predetermined travel limits that prevent excessive cab movement before roll over can occur. The geometry of the flag pin and its interaction with the mounting assembly create inherent mechanical stops that limit cab travel in all directions, providing roll over protection even with flexible mounts that allow vibration absorption
Data Source
AI summary
An operator cab for a work vehicle is releasably mounted to a frame of the vehicle via a cab support pin and a flexible mount during vehicle work operations and rotationally attached via the cab support pin for servicing working parts of the work vehicle. An anchor arrangement for the cab support pin helps to maintain the position of the cab with respect to the cab support pin during work and service operations.