EP 0088251 A3 19861015 - ELECTRIC MOTOR DRIVE
Title (en)
ELECTRIC MOTOR DRIVE
Publication
Application
Priority
DE 3208094 A 19820306
Abstract (en)
[origin: EP0088251A2] An electric motor drive is proposed which is suitable especially for the operation of a garage door and preferably has a d.c. motor (11) as the drive motor. The drive motor is controlled into the limit positions of the component, being moved by one or more limit switches (22) which, for their part, can be operated by a cam drive (19). The adjustment of the switching time of the limit switch (22) is carried out coarsely by varying the position of the switching cam (19), the fine adjustment of the switching time being carried out by swivelling the holder (27) of the limit switch (22). In the case of this type of operation and arrangement of the limit switch (22), a very precise adjustment of the switching time is obtained, together with a particularly simple, reliable and economic arrangement of the limit switch (22), which can be arranged directly on an electrical printed circuit board (23). <IMAGE>
IPC 1-7
IPC 8 full level
H01H 3/16 (2006.01)
CPC (source: EP)
H01H 3/16 (2013.01)
Citation (search report)
- [X] US 2711450 A 19550621 - CARR WILLIAM F
- [A] US 1774440 A 19300826 - HUTT LEONARD P
- [A] US 3980852 A 19760914 - REDFIELD CHARLES L
- [A] US 2427317 A 19470909 - WAGNER LELAND B
- [A] DE 2413296 A1 19751002 - ECKARDT AG J
- [A] DE 2153956 A1 19730503 - LICENTIA GMBH
Designated contracting state (EPC)
AT CH DE IT LI NL
DOCDB simple family (publication)
EP 0088251 A2 19830914; EP 0088251 A3 19861015; DE 3208094 A1 19830915; DE 3208094 C2 19860109
DOCDB simple family (application)
EP 83101317 A 19830211; DE 3208094 A 19820306