| 摘要 |
A pyrotechnic drive unit includes a cylinder tube ( 12 ) having an axial end ( 28 ), a piston ( 14 ) guided in the cylinder tube ( 12 ), a pyrotechnic igniter ( 16 ) which is adjacent to the piston ( 14 ) and constitutes the pyrotechnic drive, and a plastic part ( 18 ). The plastic part ( 18 ) is injection-molded to the igniter ( 16 ) and to the axial end ( 28 ) of the cylinder tube ( 12 ) so that it fastens the igniter ( 16 ) to the cylinder tube ( 12 ) and tightly closes the axial end ( 28 ) of the cylinder tube ( 12 ), the plastic part ( 18 ) engaging the piston ( 14 ) in an initial position of the drive unit ( 10 ).
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