Rotating Boom Pole Sledge with Motorized Push Control
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Solution Overview
Problem
Traditional pole sledges require multiple operators and lack safety and ease of use features, making them cumbersome and difficult for individuals with less physical strength to operate.
Innovation Solution
A pole sledge design featuring a vertical hub shaft with a rotatable boom and a power unit, where a pushing arrangement is used to control the boom's rotation, allowing for single-person operation, improved safety, and adjustable speed control, including automatic stopping and deceleration mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional pole sledge operation is used, then the structure remains simple, but multiple persons are required for operation and safety is compromised
Solution Approach 1:
The patent replaces manual mechanical operation with an electric motor (power unit) that rotates the boom automatically. The motor is controlled by a pushing arrangement that detects user input, enabling single-person operation while reducing the structural complexity compared to multi-person manual operation systems
Solution Approach 2:
The pushing arrangement allows the user to control the boom rotation through simple pushing motions without requiring multiple persons. The system serves itself by automatically rotating the boom based on user input, eliminating the need for complex multi-person coordination mechanisms
2Reliability
If manual operation is used, then the device is simpler, but safety and ease of use are insufficient
Solution Approach 1:
The patent introduces a power unit (electric motor) that automatically rotates the boom, replacing manual operation. This substitution improves safety by eliminating human error and physical strain while the motor's controlled operation maintains structural simplicity
Solution Approach 2:
The pushing arrangement incorporates feedback mechanisms that detect user input and control the power unit accordingly. This feedback system ensures safe operation by monitoring user actions and adjusting boom rotation accordingly, improving reliability without requiring complex safety structures
3Speed
If the boom is made rotatable for high speed, then the sledge reaches high speed with small force, but the structure becomes more complex
Solution Approach 1:
The patent uses an electric motor to provide the rotational force needed to spin the boom at high speeds. This substitution allows the sledge to achieve high speeds with minimal user effort while the motor's integrated design keeps the overall structure simple compared to mechanical advantage systems
Solution Approach 2:
The power unit enables controlled changes in rotational speed and direction of the boom. By adjusting motor parameters (speed, torque), the system achieves high sledge speeds while maintaining structural simplicity through electronic control rather than mechanical complexity
Data Source
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AI summary
The invention includes a pole sledge (100) having a hub shaft (101) and a boom (102) to which a sledge (107) is attached. The boom is rotatable in such a way that the sledge moves along a circumferential track with the hub axis at its centre. A pushing arrangement (105) is attached to the boom. In addition, the pole sledge has a power unit (106) configured to rotate the boom. The operation of the power unit is controlled by the pushing arrangement. The pushing arrangement and the power unit are configured in such a way that when the user pushes against the pushing arrangement, the boom moves in the direction of the push.