Cable Cutter Automatic Return Control
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Solution Overview
Problem
Existing power tools, such as electrical cable cutters, face inefficiencies and operator burden due to the need to continuously press the switch during cutting and manually return the cutter to standby position, leading to decreased work efficiency and increased operator fatigue.
Innovation Solution
A power tool design that includes a cutting unit which automatically stops moving towards the end position when the cutting action is not complete and reverses to the standby position upon completion, reducing the need for continuous switch activation and eliminating the requirement for manual reverse switch operation, utilizing a drive mechanism with an electric motor and adjustable return amounts based on preset settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cutter automatically opens when the switch is released, then the operator's burden is reduced, but work efficiency decreases due to unnecessary movement
Solution Approach 1:
The control unit monitors the operation state and cutting state in real-time, using feedback from these states to determine when to automatically return the cutter to standby position. This ensures the cutter only returns automatically when cutting is complete, avoiding unnecessary movements that would reduce productivity while maintaining ease of operation.
Solution Approach 2:
The system performs self-service by automatically returning the cutter to standby position without requiring manual intervention. The control unit autonomously determines when cutting is complete and activates the drive unit to return the cutter, reducing operator burden while maintaining productivity through intelligent control.
2Productivity
If the operator continuously keeps the switch pressed until cutting ends, then work efficiency is maintained, but operator burden increases
Solution Approach 1:
The system takes over the task of returning the cutter to standby position through automatic control. The control unit detects when cutting is complete and automatically activates the drive unit to return the cutter, eliminating the need for continuous switch pressing and reducing operator burden while maintaining productivity.
Solution Approach 2:
The manual mechanical operation of continuously pressing the switch is replaced by an automated control system. The control unit uses sensors and control logic to detect cutting completion and automatically return the cutter, substituting manual continuous operation with intelligent automated control.
3Measurement precision
If separate forward and reverse switch levers are used, then precise control is achieved, but operator burden increases due to manual reverse operation
Solution Approach 1:
The separate forward and reverse switch levers are merged into a single switch operation. The control unit processes a single switch input and automatically determines the appropriate action (forward movement, reverse movement, or standby return) based on the operation state and cutting state, reducing operator burden while maintaining control precision.
Solution Approach 2:
The control unit uses feedback from operation state and cutting state sensors to intelligently control the cutter's movement based on a single switch input. This feedback mechanism ensures precise control by automatically selecting the appropriate action while eliminating the need for separate reverse switch 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
This design enhances work efficiency by allowing the cutter to automatically return to standby, reducing operator burden and minimizing productivity losses, while also providing versatility through adjustable return amounts and improved safety features.
Implementation Method 1
a drive mechanism that causes the cutting unit to move in a forward direction in response to a forward switch input and that causes the cutting unit to move in a reverse direction in response to a reverse switch input
Data Source
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AI summary
A power tool (electrical cable cutter (1)) according to the present invention includes a cutting unit (10) that performs a cutting action, and a cutting action input unit (20) for turning the cutting action on and off. The cutting action input unit (20), when turned on, causes the cutting unit (10) to move in a direction of an end position of the cutting action, and when turned off, causes the cutting unit (10) to stop moving in a case where the cutting action has not ended at a time when the cutting action input unit is turned off, and to move in a direction of a standby position prior to a start of the cutting action in a case where the cutting action has ended at the time when the cutting action input unit is turned off.