Safety Torque Intensifying Tool with Automatic Mode Switching
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Solution Overview
Problem
Existing torque intensifying tools pose a risk of operator injury during high-speed, low-torque operations due to reaction forces and inertia, as they require the operator to hold the handle in a stationary position, which can lead to twisting or collision with moving parts.
Innovation Solution
A safety torque intensifying tool with a switching mechanism that automatically transitions between high-speed, low-torque and low-speed, high-torque modes, using an additional element that functions as a handle or absorbs reaction forces, ensuring safe handling by automatically switching modes when the operator is not actively engaging the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tool operates in high-speed/low-torque mode with the handle in perpendicular position, then productivity is improved, but operator safety deteriorates due to risk of injury from twisting or collision with moving parts
Solution Approach 1:
The switching mechanism automatically detects when the operator is not actively engaging the tool and preemptively switches from high-speed/low-torque mode to low-speed/high-torque mode, preventing the harmful situation of operator exposure to high-speed moving parts before it can occur
Solution Approach 2:
The tool monitors its own operational state through the switching mechanism and automatically adjusts its mode based on operator engagement, eliminating the need for manual mode switching and ensuring safety without operator intervention
2Object-affected harmful factors
If the tool operates in low-speed/high-torque mode, then operator safety is improved, but productivity deteriorates due to slower operation speed
Solution Approach 1:
The tool dynamically switches between high-speed/low-torque and low-speed/high-torque modes based on real-time operator engagement detection, allowing the system to optimize for speed when safe and for safety when needed, rather than being locked into a single static mode
3Ease of operation
If the handle is held in perpendicular position by the operator during high-speed operation, then the tool can be controlled, but device complexity increases due to need for manual handling control
Solution Approach 1:
The switching mechanism automatically manages the transition between operational modes based on operator engagement, eliminating the need for manual mode switching and reducing the complexity of operator control while maintaining full functionality
Data Source
Figure 1
Figure 2~3
AI summary
A safety torque intensifying tool (1) has a housing, a torque intensifying unit (2) providing at least two modes of operation including a first mode in which the tool operates with a high speed and a low torque and a second mode in which the tool operates with a low speed and a high torque, a grip (5) to be held by a tool operator, an additional element (6) acting as a handle for better gripping in the first mode in which the tool operates with the high speed and low torque and also as a reaction arm to abut against a stationary object to stop the housing from turning in the second mode when the tool operates with the low speed and the high torque, and a switching unit (11) for switching the tool between the first and second modes and configured so that when the operator does not act on the switching unit the tool is in the second mode of operation with the low speed and the high torque, and when the switching unit is switched by the operator while the additional element acts as a handle, the tool is switched to the first mode of operation with the high speed and the low torque, until the operator stops acting on the switching unit (11) and the tool is switched itself back to the second mode of operation.