The new Generation of Door Shut-Off

New and patented is the safeguarding of the main closing edge in case of automatically operated doors with integrated low threshold flap door.

Using  the  usual  optical  closing  edge  safeguard, each one transmitter and receiver is integrated  in  the  bottom  rubber.  With  the new  system,  two  advanced  optical  systems which  are  installed  at  the  in-  and  outside contact-freely secure the danger area.

The bottom rubber doesn‘t apply and is replaced by space-saving and low sealing lips. The challenge during developing this system consisted of the requirement to develop a sturdy and simply constructed system with only a few components for less wear. Simultaneously, it has to offer reliable protection for persons or items according to the high safety requirements and thus also has to be insensitive compared to external influences such as sun reflection.

During  the  door  opening  the  sensors  which  are  integrated  in the  door  leaf  drive  into  their  supervision  position.  During  the last centimetres of the door closing, the sensors will completely be countersank into the side profile. Thus  they  are  completely  protected  against  wetness,  dirt and  snow  and  external  causes  by  persons  or  vehicles.  Many advantages also are offered when using sectional doors without flap door.

At the low threshold flap door the threshold profile is slanted on the outer and inner side so that a comfortable passage with barrows is possible. The stumble risk is just small. A flap door contact switch guarantees that a door opening is only possible in case of closed flap door.

The low threshold is equipped with a lip sealing on the outer sides. The rubber buffers which are installed beyond the threshold provide for an optimal sealing. The total breadth of 150 mm guarantees a compact and secure door stability.