Patent ID: 7744029

Claim:
A belt spool comprising: a spool body ( 12 ), a torsion rod ( 26 ) having a first end ( 29 ) and a second end ( 31 ), said torsion rod ( 26 ) being provided with a torque transmission profile ( 27 ) at said first end ( 29 ), in order to be coupled with said spool body ( 12 ), a transmission element ( 28 ) being connected with said torque transmission profile ( 27 ) of said torsion rod ( 26 ), and a stop element ( 22 ) cooperating with said transmission element ( 28 ) and being coupled with said spool body ( 12 ), said transmission element ( 28 ) allowing a rotation of said belt spool ( 12 ) relative to said torsion rod ( 26 ) to a limited extent without twisting of the torsion rod ( 26 ) first.