Title:
【発明の名称】デイスクブレ-キ付き電気モ-タ-
Document Type and Number:
Japanese Patent JPH0785641
Kind Code:
B2
Abstract:
An electric motor has a disk brake which is designed as an electromagnetically operated spring-loaded brake, acts as a standstill brake and has a thin, elastically flexible brake disk (12) of spring steel. This brake disk (12) is immovably fixed on the motor shaft (2) between an axially movable, rotationally fixed armature (8) of the electromagnet and a stationary brake part (13) which forms the outer brake housing. The annular stator (4) of the electromagnet surrounds the motor shaft, with formation of a free annular space which offers room for further attaching parts, for example a tachometer generator and/or a phase-angle sensor, or else for a ball bearing carrying the shaft. Borne axially displaceably in the stator (4) is a coil (6) which, in the braking state, is pressed by compression springs (7) against the armature (8), which for its part presses an annular rim zone (12a) of the brake disk (12), with elastic deformation of the same, against the stationary brake part (13). When the coil (6) is excited, the stronger magnetic force pulls the armature (8) back from the brake disk (12). The thin brake disk (12) is characterized by a small moment of inertia, owing to its low weight.
Inventors:
Damian Casanova
Application Number:
JP17192386A
Publication Date:
September 13, 1995
Filing Date:
July 23, 1986
Export Citation:
Assignee:
Mabiroru System Society Anonymous
International Classes:
F16D65/18; F16D55/28; F16D59/02; F16D65/12; F16D65/14; H02K7/102; H02K11/00; F16D55/00; (IPC1-7): H02K7/102; F16D55/28; F16D65/21; H02K11/00
Domestic Patent References:
| JP5831444U | ||||
| JP576360U |
Attorney, Agent or Firm:
Aoki Akira (4 outside)
Next Patent: DISK-SHAPED RECORDING MEDIUM