Torque sensor coil and torque sensor
US10228298B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Sep 1, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/44
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A torque sensor coil includes a non-magnetic bobbin that includes first inclined grooves inclined at a predetermined angle relative to an axial direction and second inclined grooves inclined at the predetermined angle relative to the axial direction in a direction opposite to the first inclined grooves, a first detection coil formed by winding an insulated wire around the bobbin along the first inclined grooves, and a second detection coil formed by winding an insulated wire around the bobbin along the second inclined grooves. The bobbin is divided into plural regions along the circumferential direction, side walls of the first and second inclined grooves in each region are all parallel to a mold draw direction set to be different for each region or are inclined with respect to the parallel direction in such a manner that the first and second inclined grooves are widened toward the outside in a radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.