Telescopic Pole Motor Unit With Friction-Held Manual Switching
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Solution Overview
Problem
Existing telescopic pole assemblies face risks of collapse during manual operation due to disengagement of the manual handle from the motor, potentially causing injury when switching from motor operation to manual operation under load.
Innovation Solution
A motor unit with a rotating arm that can be axially extended between motor and manual operation positions, featuring a slidable axis engage means that maintains connection due to friction until manually rotated, ensuring a secure transition by kinematic means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the manual handle is disengaged from the motor when switching from motor operation to manual operation, then the load on the rope is transferred to the manual handle, but the pole may collapse causing injury to the operator
Solution Approach 1:
The system performs preliminary action by maintaining the torque-proof connection between motor and wheel during the transition phase. The slidable axis engage means ensures the connection is released only after the rotating arm is securely positioned in manual operation mode, preventing premature disengagement that could cause pole collapse
Solution Approach 2:
The system employs dynamics by making the axis engagement state changeable through the slidable axis engage means. The engagement state transitions from fixed (motor operation) to movable (transition phase) to fixed again (manual operation), allowing controlled adaptation during the switching process while maintaining safety
2Reliability
If the slidable axis engage means maintains connection due to friction during transition, then the transition from motor to manual operation is secure, but the device complexity increases
Solution Approach 1:
The slidable axis engage means acts as an intermediary element between the motor and wheel. It provides a controlled transition mechanism that maintains torque-proof connection during the switching phase through friction, ensuring safety while managing the complexity through a single dedicated component rather than multiple separate systems
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
Ensures a secure and controlled transition from motor to manual operation, preventing accidental collapse and injury by maintaining torque-proof connection until the wheel is manually rotated.
Implementation Method 1
the slidable arranged axis engage means will stay connected to the wheel, due to friction, until the wheel is manually rotated
Data Source
AI summary
The present invention relates to a motor unit configured for actuating a rope of in particular a telescoping pole assembly including a telescopic pole, including a motor, a wheel comprising a rotatable wheel drum for receiving the rope, whereby an axis engage means is slidable between a first position in which the motor is torque-proof connected to the wheel and a second position in which the connection of the motor is released from the wheel is foreseen. The invention also relates to in particular a telescopic pole assembly comprising a telescopic pole with a rope connected thereto and the motor unit. The invention further relates to a method for switching between a motor operation of in particular a telescopic pole assembly and a manual operation of in particular the telescopic pole assembly and to a method for switching between a manual operation and a motor operation of in particular a telescopic pole assembly.