| 摘要 |
A tensioner for a safety belt has a piston/cylinder unit (3), a compressed gas source (17), a belt engaging device (13), a traction transfer device (11) and a damping mechanism for the absorption of energy on deceleration of the belt engaging device (13). The damping mechanism comprises a first part (15) connected with the traction transfer device (11), projecting laterally from it and arranged outside the cylinder (5) in the non-actuated state of the tensioner, and comprises a second part connected with the cylinder (5) and provided on the end wall (23) of the cylinder close to the belt engaging device (13). At least one of the two parts is moved into the interior of the cylinder (5) during the damping process, so that the axial structural space of the tensioner (1) is small.
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