| 摘要 |
The safety belt restraining system for vehicles is provided with a vehicle-sensitive and/or webbing-sensitive locking belt retractor and a webbing clamping means following said retractor. To achieve fast activation of the webbing clamping means with minimum webbing withdrawal but nevertheless to protect the webbing from damage by the clamping operation, the inhibiting force exerted by the webbing clamping means on the webbing is limited by dimensioning and configuration of the system to a predetermined value at which the webbing clamping means does not cause any appreciable weakening of the webbing. The belt retractor is in turn dimensioned at least for absorbing the forces which are to be expected in the evolution of an accident and are introduced via the webbing after the predetermined value is exceeded. When said value is exceeded and, e.g. the webbing slips between the webbing clamping means, the retractor can absorb the remaining blocking load.
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