Pressure sensitive element and a stylus pen with pressure sensitive function
US5633471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensitive element is arranged around a core unit along the longitudinal axis of a stylus pen (10) to detect the pressure applied to the core unit. The pressure sensitive element comprises a pressure transmittable member (30b), in an annular plate shape, for transmitting the pressure applied in the axial direction of the pressure sensitive element, a pressure sensitive member (28), in an annular plate shape, arranged coaxially in parallel to the pressure transmittable member, and a support member (18b) for supporting the pressure sensitive member between the support member against the applied pressure, arranged coaxially in parallel to the pressure transmittable member. The core unit is a push and thrust type writing unit (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.