Driving Tool Roller Pressing Mechanism for Jamming Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving tools face challenges in reliably transmitting rotational energy to the driver for efficient nail driving, often resulting in unstable frictional engagement and potential jamming issues.
Innovation Solution
A driving tool configuration that includes a flywheel, a driver, a pressing mechanism, and a solenoid, where the pressing mechanism, comprising a holder and a roller, is designed to turnably support the holder relative to the tool body and rotatably support the roller, enabling the roller to press the driver against the flywheel for efficient energy transmission, and the solenoid's actuation part moves the holder to facilitate this engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driver is pushed out forward at high speed by rotational energy transmitted from a flywheel, then the nail driving speed is improved, but the frictional engagement between the driver and flywheel becomes unstable causing jamming
Solution Approach 1:
A roller is introduced as an intermediary component between the driver and the flywheel. The roller presses against the driver to transmit rotational energy from the flywheel to the driver through friction, while the pressing mechanism ensures continuous stable contact. This intermediary roller prevents direct unstable frictional engagement between the driver and flywheel, eliminating jamming while maintaining high driving speed.
2Productivity
If the driver is pushed out forward at high speed by rotational energy transmitted from a flywheel, then the nail driving efficiency is improved, but the risk of jamming increases
Solution Approach 1:
The roller serves as a mediator that transmits rotational energy from the flywheel to the driver through stable frictional contact. The pressing mechanism maintains continuous pressure on the roller, ensuring reliable energy transmission without interruption or jamming, thus achieving both high productivity and reliability.
Solution Approach 2:
The direct mechanical contact between the driver and flywheel is replaced with a friction-based transmission system using the roller. This substitution allows for smoother, more reliable energy transmission that prevents jamming while maintaining high driving efficiency.
3Reliability
If a pressing mechanism is added to ensure stable frictional engagement, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The roller acts as a simple intermediary component that, when combined with a pressing mechanism, provides stable frictional engagement. The pressing mechanism itself is relatively simple, using a lever and spring assembly that presses the roller against the driver, thereby achieving high reliability without excessive complexity.
Solution Approach 2:
The pressing mechanism is designed to automatically maintain pressure on the roller through the lever and spring system, allowing the system to self-regulate the frictional engagement without complex external control systems. This self-service approach improves reliability while keeping the structure simple.
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 configuration ensures reliable transmission of rotational energy to the driver, reducing the likelihood of jamming and improving the efficiency of nail driving by maintaining firm frictional engagement throughout the process.
Implementation Method 1
The solenoid has an actuation part. The actuation part is configured to linearly move in a specified direction from an initial position when the solenoid is activated.
Implementation Method 2
The roller abuts on the driver and presses the driver toward the flywheel to thereby enable transmission of the rotational energy to the driver
Data Source
AI summary
A driving tool includes a tool body, a flywheel, a driver, a pressing mechanism and a solenoid. The solenoid has an actuation part configured to linearly move in a specified direction from an initial position when the solenoid is activated. The pressing mechanism includes a holder turnably supported around a rotation axis relative to the tool body, and a roller rotatably supported by the holder. The holder is turnable between a first position in which the roller is apart from the driver and a second position in which the roller abuts on the driver and presses the driver toward the flywheel to thereby enable transmission of the rotational energy to the driver. The actuation part is configured to turn the holder from the first position to the second position while moving from the initial position.