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US 10,961,100 B2Granted
Magnetic screwdriver device
AssigneeIndustrial Technology Research Institute H
InventorsChang-Min Lin, Wei-Chieh Chang, Hsuan-Yu Huang
Life of this patent
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Abstract
A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.
Claims18
A magnetic screwdriver device, comprising:
- a pad without magnetism;
- a driving shaft with a magnetic attraction property, disposed on one side of the pad and in touch with the pad;
- and
- a driven shaft, disposed on an opposite side of the pad respective to the driving shaft and in touch with the pad;
- wherein the driving shaft and the driven shaft are magnetically attracted to each other;
- wherein, when a torque transmitted from the driving shaft to rotate the driven shaft exceeds a predetermined value, the driven shaft is stopped.
3 more elements
Dependencies are inferred from the claim text.