Torque sensor
US5796014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Two coaxial circumferential grooves formed apart from each other in an axial direction are provided for a coil bobbin made of a non-conductive material, such as plastic, and arranged to be secured in a housing coaxially with an input shaft and an output shaft. Moreover, a torque detection coil is wound around each of the circumferential grooves. A terminal mounting portion is formed on the end surface of a connecting portion facing outwards in the radial direction to further outwardly project in the radial direction. Three metal terminals are secured to the upper surface of the terminal mounting portion. An end of one of the coils is wound around the first terminal, an end of the other coil is wound around the second terminal, and other ends of the two coils are wound around the third terminal. A yoke is composed of a first annular member for covering the outer surface and one of end surfaces of the coil and having an L-shape cross section, and a second annular member for covering another end surface of the coil and having a rectangular cross section. A portion of the first annular member for covering the outer surface of the coil also covers the outer surface of the second annular…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.