Cordless Power Head for Concrete Roller Screed Mobility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional powered concrete roller screeds often require a remote power source, limiting mobility and efficiency, as they rely on corded electric or gas motors, which can be cumbersome and restrict worker movement.
Innovation Solution
A cordless, battery-operated power head with a handle and driver housing, featuring a translatable link and eccentric cam mechanism that actuates a trigger to rotate the output shaft, allowing independent operation without a remote power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a corded electric motor or gas motor is used to power the screed roller, then the screed roller can be rotated effectively, but the worker's mobility is restricted and the device becomes cumbersome
Solution Approach 1:
The patent extracts the power source from the conventional corded electric motor or gas motor and replaces it with a cordless battery-operated driver. This removes the restraining cord and external power dependencies, allowing workers to move freely while maintaining the ability to rotate the screed roller effectively through the battery-powered motor integrated into the power head assembly
Solution Approach 2:
The power head assembly is designed to be self-contained with an integrated battery-operated driver that provides all necessary power for screed roller rotation without requiring external power sources or cords. The unit carries its own power supply (battery) and operates autonomously, enabling workers to complete concrete finishing tasks without being tethered to electrical outlets or power sources
2Power
If a remote power source is used, then the motor can be powered, but the device complexity increases and worker burden increases
Solution Approach 1:
The patent merges the power source (battery) directly into the power head assembly, combining what were previously separate components (remote power source and motor) into a single integrated unit. This consolidation eliminates the need for external power connections, cords, and complex power transmission systems, reducing overall device complexity while maintaining full motor functionality for driving the screed roller
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
Enables greater mobility and efficiency in concrete finishing by providing a self-contained, battery-powered solution that rotates the screed roller without the need for a remote power source, reducing worker burden and improving workflow.
Implementation Method 1
The eccentric cam is operatively connected to the translatable link within the drive housing such that translation of the translation link imparts rotation of the eccentric cam about a rotational axis of the eccentric cam to an actuated position
Data Source
AI summary
A power head for a powered concrete roller screed includes a handle and a driver housing at a distal end of the handle. A cordless, battery-operated driver is received in the driver housing. A head actuator includes a translatable link extending along the handle and an eccentric cam. The eccentric cam is operatively connected to the translatable link within the drive housing such that translation of the translation link imparts rotation of the eccentric cam about a rotational axis of the eccentric cam to an actuated position. The eccentric cam is adjacent a trigger of a cordless, battery-operated driver and is configured to depress the trigger when the eccentric cam is rotated about its rotational axis to the actuated position.