Wiper motor and wiper apparatus
US8171597B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19828
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wiper motor has an output shaft that outputs a to-and-fro rotation to swing a wiper pivotally. A transmission mechanism transmits the rotational force from the motor body. A clutch mechanism lets the transmission mechanism run idle not to transmit the rotational force from the transmission mechanism to the output shaft when the output shaft is subjected to a torque larger than an engagement releasing torque. The engagement releasing torque is specified to a value larger than a maximum wiping torque to which the torque applied by the wiper onto the output shaft is estimated to reach during a normal wiping operation of the wiper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.