In an arrangement for application in open-end rotor spinning, an opening
roller is housed in a swivel housing. The swivel housing can, together
with the assembled opening roller, be removed from the arrangement for
open-end rotor spinning when the machine is in operation. The opening
roller, due to its mass, continues to rotate after it has been separated
from the tangential belt which drives it. A locking device is provided
which prevents the removal of the swivel housing when the opening roller
is rotating. This results in the opening roller being at a standstill when
the swivel housing is removed. The risk of injury caused by a still
rotating opening roller is eliminated.
