FIELD: construction.
SUBSTANCE: spring with its one end rests against a counter-support, and with its other end - against a geared rack. A motorized driving mechanism is connected to the counter-support and the geared rack so that the motorized driving mechanism is arranged with the possibility to move both the counter-support and the geared rack in direction, which is parallel to a longitudinal length of the spring, and this actively change the spring pretension.
EFFECT: development of a door drive, which has two versions for a shearing transfer or for transfer of a sliding bus.
13 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SWITCHING DEVICE ARRANGEMENT | 2014 |
|
RU2625809C2 |
| OPENING AND CLOSING DEVICE FOR PULLED UP SLIDING DOORS AND WINDOWS | 2006 |
|
RU2350731C2 |
| WINDOW OR DOOR WITH FURNITURE | 2007 |
|
RU2420644C2 |
| DOOR DRIVE SYSTEM | 2020 |
|
RU2814672C2 |
| WINDOW AND DOOR LEAF LOCKING APPARATUS | 1996 |
|
RU2100554C1 |
| INTELLIGENT AUTOMATICALLY CLOSING DOOR | 2015 |
|
RU2682441C2 |
| ELECTROMECHANICAL DRIVE FOR MULTI-WING OR SINGLE-WING DOOR (VARIANTS) | 2002 |
|
RU2287651C2 |
| SLIDING DOOR OF ELEVATOR | 2015 |
|
RU2609518C1 |
| END EFFECTOR WITH HINGE ASSEMBLY AND ENDOSCOPIC SURGICAL APPARATUS DRIVE | 2016 |
|
RU2636853C2 |
| CLOSING DEVICES FOR AUTOMOBILE DOORS OR OTHER LOCKING MEMBERS | 1997 |
|
RU2194837C2 |
