Mottenhausen
2019-07-04 14:06:51
- #1
We also once received an electric drive with a crank eye attached on a floor above (OG) and a ground floor (EG). We will probably receive the cranks themselves later from the window manufacturer. I do not want to question the concept or the necessity.
But: where do people usually put the crank? Right next to the [RW Fenster]? I fear it will be put away somewhere and cannot be found in an emergency. Often, gimmicks like laminated safety glass (VSG-Glas) and lockable handles (abschließbare Oliven) are used, so you first have to get to the roller shutter.
In addition, the following problem arises: the gear ratio of the electric motor drive is different (due to its high speed) than normal manually operated roller shutters. But the emergency crank eye is located directly on the motor, so this unfavorable gear ratio also applies here. You feel like you have to crank 100 times to raise the roller shutter a few centimeters. In an emergency, that is total nonsense; no one stands there cranking the roller shutter up millimeter by millimeter for minutes while everything behind them is on fire. It simply takes way too long.
The only solution I see to escape is to snap the roller shutter slats out of the guide rails by pushing or kicking and then tearing it downwards. That is 1. fundamentally much faster and 2. feasible at any window whether electric drive, emergency crank, or whatever the case may be. You should regularly rehearse such emergency scenarios with your children. Hopefully, in case of emergency, they can also easily open the roller shutter slats (floor-to-ceiling) to the roof terrace by, for example, throwing themselves against it.
But: where do people usually put the crank? Right next to the [RW Fenster]? I fear it will be put away somewhere and cannot be found in an emergency. Often, gimmicks like laminated safety glass (VSG-Glas) and lockable handles (abschließbare Oliven) are used, so you first have to get to the roller shutter.
In addition, the following problem arises: the gear ratio of the electric motor drive is different (due to its high speed) than normal manually operated roller shutters. But the emergency crank eye is located directly on the motor, so this unfavorable gear ratio also applies here. You feel like you have to crank 100 times to raise the roller shutter a few centimeters. In an emergency, that is total nonsense; no one stands there cranking the roller shutter up millimeter by millimeter for minutes while everything behind them is on fire. It simply takes way too long.
The only solution I see to escape is to snap the roller shutter slats out of the guide rails by pushing or kicking and then tearing it downwards. That is 1. fundamentally much faster and 2. feasible at any window whether electric drive, emergency crank, or whatever the case may be. You should regularly rehearse such emergency scenarios with your children. Hopefully, in case of emergency, they can also easily open the roller shutter slats (floor-to-ceiling) to the roof terrace by, for example, throwing themselves against it.