Patent · US Expired

Transmission brake

US6889801B2 · kind B2 · utility

1Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 20, 2003
Grant dateMay 10, 2005
Priority date
Expiry dateJun 20, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K7/108
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A transmission brake is arranged in connection with an electric motor for an electric brake. The transmission brake shall allow rotation of the motor shaft in a brake applying direction, but when motor current is no longer supplied, the shaft shall be locked. Rotation of the shaft in the brake release direction pre-supposes reverse rotation of the motor. A clutch is arranged between the shaft and a non-rotational housing. For accomplishing an engagement of the clutch at a rotation of the shaft but not the motor in the brake release direction there is a ramp.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.