Tiltrotator Fork Carriage Level Guidance Against Tipping Loads
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Solution Overview
Problem
The use of a fork carriage with a tiltrotator on a work machine poses safety concerns due to the risk of tipping loads, which has led some manufacturers to avoid offering this combination, despite its potential advantages in usability and functionality.
Innovation Solution
A control system incorporating an inclinometer on the tiltrotator to sense the orientation of the fork carriage relative to gravity, coupled with a display unit in the operator's cabin to provide visual feedback and audio/vibration warnings when the inclination exceeds safe thresholds, ensuring the forks remain level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fork carriage is mounted on a tiltrotator to enable multi-directional loading, then the versatility and usability of the work machine is improved, but the safety risk increases due to potential tipping loads
Solution Approach 1:
The system continuously monitors the tiltrotator's angular position and fork carriage orientation using sensors, providing real-time feedback to the control unit. This enables the system to detect potentially dangerous tilting conditions and alert the operator, resolving the safety concern while maintaining the versatile multi-directional loading capability
Solution Approach 2:
The control system acts as an intermediary between the operator and the fork carriage operation. It processes sensor data about tiltrotator position and fork orientation, then provides guidance information to the operator, mediating the interaction to prevent unsafe operations while preserving the adaptability of the system
2Ease of operation
If the fork carriage is allowed to tilt freely with the tiltrotator, then the ease of operation is improved, but the measurement precision of fork orientation deteriorates
Solution Approach 1:
The system uses sensors to continuously measure the actual orientation of the fork carriage relative to gravity, providing precise feedback information to the operator through the display. This allows the operator to freely position the forks while maintaining accurate knowledge of their orientation, resolving the contradiction between operational freedom and measurement precision
Solution Approach 2:
The patent replaces mechanical level indicators with electronic sensors and digital display systems. The sensor-based measurement system provides more precise and reliable orientation data than traditional mechanical indicators, enabling accurate fork positioning while maintaining ease of operation
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
Enhances safety by providing real-time orientation feedback and warnings, preventing accidental tilting and potential load loss, thereby increasing the usability and safety of fork carriages with tiltrotators.
Implementation Method 1
an inclinometer configured to be arranged on the lower part of the tiltrotator for sensing the orientation of the lower part with respect to gravity
Data Source
AI summary
The invention relates to a control system for a work machine for the use of a fork carriage with forks in combination with a tiltrotator, the tiltrotator comprising an upper part arranged to be mounted to a work arm of a work machine and a lower part that is rotatably and pivotally connected to the upper part, wherein the control system is configured to be activated when fork carriage is mounted on the lower part of the tiltrotator, the control system being characterised in that it includes an inclinometer arranged on the lower part of the tiltrotator for sensing the orientation of the lower part with respect to gravity, and a display unit arranged in an operator's cabin of the work machine, wherein the display unit is configured to illustrate the current orientation of the fork carriage at the lower part of the tiltrotator based on input from the inclinometer to assist the operator in keeping the lower part and the mounted fork carriage level with respect to gravity.


