FIELD: passenger lifts with automatic door control drive; safety devices. SUBSTANCE: to solve the problem device is provided with series- connected independent sealed contacts of selecting sensors for each floor and free contacts of shaft door operated by shaft penetration control relays. Selecting sensor contacts are closed by magnets, and free contacts of shaft doors are closed in parallel by pairs on each floor and are open when shaft doors are closed. EFFECT: enhanced reliability of operation. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| RELAY-CONTACT LIFT PROTECTION SYSTEM (VERSIONS) | 2000 |
|
RU2196095C2 |
| DEVICE TO PROVIDE SAFE OPERATION OF LIFT | 1997 |
|
RU2148007C1 |
| DEVICE TO PROVIDE SAFE OPERATION OF LIFT | 1997 |
|
RU2148009C1 |
| SAFETY OPERATION DEVICE FOR LIFT | 0 |
|
SU1643392A1 |
| LIFT SAFETY DEVICE | 1992 |
|
RU2006438C1 |
| DEVICE FOR AUTOMATIC CONTROL OF LIFT CABIN DRIVE SWITCHING | 0 |
|
SU1765090A1 |
| APPARATUS FOR MONITORING OPERATION OF PASSENGER ELEVATOR | 0 |
|
SU1569312A1 |
| LIFTING-AND-TRANSPORTATION MACHINE CONTROL SYSTEM | 1996 |
|
RU2112735C1 |
| SWITCHING DEVICE | 1996 |
|
RU2116236C1 |
| LIFT SAFETY DEVICE | 0 |
|
SU1666436A1 |
