Support Wheel Layout for Industrial Truck Anti-Tilt Torque
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Solution Overview
Problem
Industrial trucks, especially low-lift ride-on trucks, experience backward tilting due to unfavorable mass distribution, which existing solutions like additional weights or reduced speed fail to adequately address without increasing costs or reducing performance.
Innovation Solution
The industrial truck design incorporates a support wheel that can swivel vertically and protrude through an opening in the vehicle frame, increasing the distance between the drive wheel and support wheel to generate counter-torque, thereby preventing tilting without enlarging the chassis space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If support wheels are arranged on the drive part, then backward tilting is prevented, but the distance between support wheel and drive wheel is too short to generate sufficient counter-torque
Solution Approach 1:
The support wheel is allowed to protrude through an opening in the vehicle frame in the longitudinal direction, extending beyond the usual chassis boundaries. This dimensional extension increases the trail distance between the support wheel and drive wheel, thereby generating sufficient counter-torque to prevent backward tilting without requiring additional weights or reducing vehicle performance
2Force
If additional weights are attached to increase counter-torque, then backward tilting is prevented, but installation space is limited and additional costs incur
Solution Approach 1:
The invention extracts the counter-torque generation function from the traditional mass distribution approach and relocates it to the support wheel positioning. By allowing the support wheel to protrude through the frame opening, the system generates the necessary counter-torque through geometric configuration rather than adding mass, thereby eliminating the need for additional weights and simplifying the vehicle structure
3Force
If the support wheel protrudes through the opening in the vehicle frame, then the distance between drive wheel and support wheel increases, but the chassis space is limited
Solution Approach 1:
The support wheel protrudes through an opening in the vehicle frame in the longitudinal direction, extending beyond the usual chassis boundaries. This dimensional extension allows the support wheel to achieve the necessary trail distance for generating sufficient counter-torque without requiring enlargement of the main chassis space, as the protrusion utilizes the space beyond the frame opening
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively counteracts backward tilting by increasing counter-torque without the need for additional weights or reduced performance, maintaining vehicle efficiency and reducing costs.
Implementation Method 1
the at least one support wheel partially protrudes on account of the limitation of the chassis that was usual previously
Implementation Method 2
the load part is equipped with a load-carrying means, for example a pair of fork tines. The load-carrying means comprises at least one load wheel, which supports the load part and thus also the drive part
Data Source
AI summary
An industrial truck comprises a load part comprises a load-carrying means including at least one load wheel and a drive part including a vehicle frame defining an opening. A steerable drive wheel and at least one support wheel are arranged on the vehicle frame. The at least one support wheel is arranged on a side of the drive wheel that faces away from the load part and is mounted as a trailing wheel that swivels about a vertical axis. The at least one support wheel is configured to at least partially protrude through the opening defined in the vehicle frame.