Ultrasonic sensor
US7246523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2005 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Feb 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic sensor includes an ultrasonic microphone having a circular vibration surface, a substantially cylindrical cushion unit where the ultrasonic microphone is inserted, and a case unit which has a fitting portion provided with a cylindrical engagement hole therein. The cushion unit and the fitting portion are respectively provided with cushion-side guide portions and fitting-side guide portions which are to be engaged with each other, so that the cushion unit is axially guided to be inserted into the fitting portion and restricted from circumferentially rotating. The cushion unit has cushion-side engagement portions, which are engaged with case-side engagement portions of the fitting portion and capable of bending toward a diametrically inner side of the cushion unit in the insertion of the cushion unit into the fitting portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.