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US 10,780,439 B2Granted
Magnetic screwdriver device
AssigneeIndustrial Technology Research Institute
InventorsChang-Min Lin, Wei-Chieh Chang, Hsuan-Yu Huang
Life of this patent
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Abstract
A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.
Claims9
A magnetic screwdriver device, comprising:
- a pad without magnetism;
- a driving shaft with magnetic attraction property disposed on one side of the pad and in touch with the pad;
- and
- a driven shaft disposed on the opposite side of the pad respectively to the driving shaft and in touch with the pad;
- wherein the driving shaft and the driven shaft have magnetic attraction between each other, and the driving shaft transmits torque to actuate the driven shaft rotate;
- the driven shaft will be stop when the torque exceeds a predetermined value.
3 more elements
Dependencies are inferred from the claim text.