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Belt force limiter
Functional description of belt force limiter
If, due to acceleration, the tensile force of the
belt is so high that bruising or internal injuries
can occur, the tensile force of the belt must be
limited to a tolerable level.
It is limited by the belt reeling device torsion
shaft. The torsion shaft operates in much the
same way as a spring. Depending on its tensile
force, the belt “gives”.
Both types of belt tensioner use the same
system
Belt reeling device
The end of the slot limits
the distance which the
reeling device can
“give”.
The torsion shaft is con-
nected to the gearwheel
on this side.
Belt
The torsion shaft is con-
nected to the reeling
device on this side.
The reeling device is able
to rotate freely within
gearwheel inner race.
The torsion shaft runs through the
belt reeling device.
SSP 192/065
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