Driving Tool Switching Mechanism Intersecting Actuation
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Solution Overview
Problem
The switching mechanism in driving tools can be inadvertently switched due to factors other than the supply and stop of electric power, leading to unintended actuation of the striking unit.
Innovation Solution
A driving tool design that includes a switching mechanism with distinct states, actuated by power supply, which maintains its state when power is stopped, and has a driver unit that enables or blocks the striking unit's actuation, with the actuation direction of the switching mechanism intersecting the fastener's moving direction, ensuring that the striking unit is only actuated when intended.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the switching mechanism is actuated by power supply to switch between first and second states, then the striking unit can be controlled to strike or not strike the fastener, but the switching mechanism may be inadvertently switched due to factors other than intended power supply control
Solution Approach 1:
The patent introduces a spatial dimension constraint by arranging the actuation direction of the switching mechanism to intersect with the moving direction of the fastener. This geometric relationship ensures that only forces applied along the fastener's moving direction can actuate the switching mechanism, blocking unintended switching from other directions while maintaining reliable control through the power supply.
2Speed
If the switching mechanism is made sensitive to power supply changes for responsive control, then the striking unit can respond quickly to control signals, but the switching mechanism becomes vulnerable to inadvertent actuation from external factors
Solution Approach 1:
The patent adds a directional constraint dimension to the switching mechanism's actuation. By requiring that the actuation force align with the intersecting direction defined by the fastener's moving direction, the mechanism responds quickly to valid power supply control signals while ignoring forces from other directions, thus maintaining both speed and reliability.
Data Source
AI summary
A driving tool having a striking unit and a driver unit includes a solenoid configured to switch between a first state and a second state by being actuated by the supply and stop of the electric power, wherein the driver unit has a first drive state in which the striking unit can be actuated and a second drive state in which the actuation of the striking unit is blocked, wherein the first state enables the driver unit to switch from the second drive state to the first drive state and the second state blocks the driver unit from switching from the second drive state to the first drive state, and wherein an actuation direction of the solenoid and the moving direction of the nail are arranged so as to intersect each other.