Forklift Driver Platform Spring Suspension
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Solution Overview
Problem
Industrial trucks with driver platforms face challenges in suspending the operator's workplace effectively to absorb vibrations and oscillations, particularly due to the complexity and high costs associated with hydraulic suspension systems that are difficult to regulate and adapt to changing conditions.
Innovation Solution
A lifting drive is arranged on a linear guide and supported by a spring element between the drive part and the lifting drive, allowing for a simple and cost-effective suspension of the driver's workplace, with the spring element being easily adjustable to accommodate varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic accumulator is used to suspend the driver's platform, then the suspension function is achieved, but the structure becomes complex and production costs increase
Solution Approach 1:
The invention extracts the suspension function from the complex hydraulic accumulator system and implements it independently using a simple spring element. The spring element is positioned between the driver's platform and the drive part, providing suspension without requiring integration into the hydraulic circuit, thus simplifying the overall system structure.
Solution Approach 2:
The invention replaces the expensive and complex hydraulic accumulator with a simple, cost-effective spring element. This spring element achieves the same suspension function with significantly reduced production costs and simpler construction, eliminating the need for costly hydraulic components.
2Reliability
If a hydraulic accumulator is integrated into the hydraulic circuit, then suspension is achieved, but the hydraulic system becomes more complex and difficult to regulate
Solution Approach 1:
The invention segments the suspension function from the hydraulic system by using an independent spring element. This separation allows the suspension system to operate autonomously without interfering with or requiring integration into the hydraulic circuit, making the hydraulic system easier to regulate and control.
3Reliability
If a hydraulic accumulator is used, then suspension is achieved, but the system becomes difficult to adapt to changing conditions such as driver body weight
Solution Approach 1:
The invention employs a spring element with adjustable stiffness that can be dynamically adapted to changing conditions. The spring element's characteristics can be modified to accommodate varying driver body weights and different operating conditions, providing flexibility and adaptability that the fixed hydraulic accumulator system lacks.
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 solution provides a comfortable and adaptable suspension system that effectively dampens vibrations and shocks at any lift height, with adjustable stiffness to suit the operator's weight and ground conditions, while maintaining a simple and inexpensive structure.
Implementation Method 1
suspend the operator platform or the driver's workplace on the drive part in a spring-loaded manner in order to absorb the oscillations and vibrations that act on the operator standing on the operator's platform during operation of the truck
Data Source
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AI summary
The invention relates to a forklift truck (1) with a driver's workstation (7) comprising a driver's platform (8) for a standing operator (P) and arranged on a drive unit (A) of the forklift truck (1) in the longitudinal direction (L) of the forklift truck (1) between a battery compartment (6) of a traction battery and a vertical rear wall (9) of the drive unit (A), wherein the driver's workstation (7) is arranged on the drive unit (A) so as to be raised and lowered by means of a lifting drive (20). The lifting drive (20) is arranged on the drive unit (A) so as to be movable in the vertical direction (V) by means of a linear guide (25) and the lifting drive (20) is supported on the drive unit (A) in the vertical direction (V) by means of a spring element (26).