Hand-Guided Load Device with Sensor-Controlled Cable Verticality
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Solution Overview
Problem
Existing manually operated lifting aids for moving loads are cumbersome, require significant force, and have complex, space-intensive designs due to the need for large trolleys and drives to maintain stability and adjust cable angles.
Innovation Solution
A device with a sensor to measure cable angles, a controller to adjust the rope pivot point and cable length, and an actuator to maintain the cable in a vertical position, allowing for automatic adjustment and reduced user effort by decoupling forces from the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a large trolley and drive are used to maintain stability and adjust cable angles, then stability is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent replaces the traditional mechanical trolley-drive system with a sensor-controller-actuator system. Sensors detect cable angle deviations, the controller processes this information, and actuators automatically adjust the boom position to maintain cable verticality. This substitution of mechanical stability mechanisms with automated control systems reduces device complexity while maintaining or improving stability.
Solution Approach 2:
The system automatically adjusts itself to maintain stability without requiring external intervention or large mechanical components. The sensor-controller-actuator loop continuously monitors cable angle and self-corrects boom position, eliminating the need for large trolleys and drives that would otherwise be required to maintain stability manually.
2Stability of the object's composition
If a large trolley and drive are used to maintain stability and adjust cable angles, then stability is improved, but the device becomes more space-intensive
Solution Approach 1:
The patent replaces space-intensive mechanical stability systems (large trolleys and drives) with compact sensor-controller-actuator systems. The automated control system achieves stability with minimal mechanical components, significantly reducing the space required for stationary equipment while maintaining cable verticality and load stability.
3Ease of operation
If manual force is applied to shift loads by pressing to the side, then load movement is achieved, but user effort increases
Solution Approach 1:
The patent replaces manual force application with an automated sensor-controller-actuator system. Instead of requiring the user to physically press the load to the side to initiate movement, sensors detect the desired movement direction and the actuator automatically adjusts the boom position, eliminating the need for significant user effort while improving ease of operation.
Solution Approach 2:
The control system acts as an intermediary between the user's intent and the physical movement of the load. The sensor detects the user's desired direction (through minimal input), the controller processes this information, and the actuator executes the movement, mediating between small user input and the actual load displacement to reduce required force.
4Ease of operation
If the rope pivot point is adjusted manually to shift loads, then load positioning is achieved, but the design becomes more complex
Solution Approach 1:
The patent replaces manual rope pivot point adjustment with an automated actuator system controlled by sensors and a controller. The sensor detects the desired pivot position, the controller calculates the required adjustment, and the actuator automatically moves the pivot point, simplifying the design by eliminating complex manual adjustment mechanisms while improving ease of operation.
Data Source
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AI summary
The invention relates to a device (10) for the hand-guided movement of loads by means of a retaining or gripping element (11) as a lifting aid, which retaining or gripping element is attached to a load-bearing rope (2), comprising a load-bearing apparatus (1), which is provided with at least one vertical cantilever (3), over which the load-bearing rope (2) is guided from sides of a rope-winding apparatus (4) on the load-bearing apparatus (1) by means of an adjustable rope articulation point (5), wherein a sensor (6) for measuring a rope angle of the load-bearing rope (2) in relation to the vertical is provided and a controller coupled to the sensor (6) is provided, which controller is designed to simultaneously control an adjustment of the rope articulation point (5) and a rope length of the load-bearing rope (2) on the basis of a measured rope angle.