Cab Lifting Anchor Points for Chassis Mounting
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Solution Overview
Problem
Current truck-building methods that lift the cab or sleeper section by attaching lift cables to floor structural beams risk damaging HVAC, electrical, and air lines, and cause instability, leading to toppling hazards.
Innovation Solution
Providing structural anchor points on upright walls of the vehicle cab, such as PRV holes, and using a lifting device connected to these points to lift and mount the cab onto the chassis, reducing the need for under-cab lifting and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lift cables are attached to floor structural beams for lifting the cab, then the lifting operation can be performed, but damage occurs to HVAC lines, electrical bundles, exhaust pipes, and air lines located under the floor
Solution Approach 1:
The lifting attachment points are extracted from the floor structural beams and relocated to the upper cab structure (roof, sides, or front). This removes the harmful interaction between the lifting cables and the under-cab lines, eliminating damage to HVAC, electrical, exhaust, and air lines while preserving the lifting function.
2Ease of manufacture
If lifting is performed from floor structural beams below the cab center of gravity, then the lifting operation can be conducted, but instability occurs creating a toppling hazard
Solution Approach 1:
The attachment points are moved from a single dimension (floor level) to multiple dimensions distributed throughout the upper cab structure. By placing attachment points on the roof, sides, and/or front of the cab, the lifting force is distributed across multiple spatial dimensions, creating a stable lifting configuration that prevents toppling while maintaining ease of operation.
Data Source
AI summary
A method of mounting a vehicle cab onto a vehicle chassis is provided. The method includes providing at least one structural anchor point on an upright wall of the vehicle cab, connecting a lifting device to the structural anchor point, and using the lifting device to lift the vehicle cab and mount it on the vehicle chassis.