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Design and Function
Butzbach GmbH Industrietore
Originalbedienungsanleitung SPACELITE_V1
24/02/2021
19
5.7.4 Anti-drop device
Diagram 5 Anti-drop device system - fall arrestors
Legend
01 Control rail
02 Locking device
03 Spring
04 Support rail
Topic
Description
Classification
Standard
Design
The anti-drop device system consists of two fall arrestors with locking devices.
Placement
The support rails and control rails are integrated into the guide rails. The fall arrestors are
attached to the bottom door panel.
Operation
If a certain door closing speed is exceeded (e.g. a door panel is falling), the locking
devices latch into place in the support rails and block the bottom door panel. A spring on
a pendulum (pendulum lock) prevents the pendulum being disengaged from the support
rail due to subsequent vibrations of the door panel, and thus prevents the door from
continuing to fall.
Function
Stopping of the falling movement if the fall arrestors exceed a determined closing speed
Result
Door panels in movement are brought to a standstill in every position.
Note!
The door system is no longer ready for operation after anti-drop device system (fall arrestors)
is triggered. The door system must be inspected again before putting it back into operation.
Please contact the manufacturer or dealer for this.