초록 ▼

A rotary power element for tensioning devices of safety mechanisms for protecting the occupants of vehicles by the use of safety belts has a rotatable drive mechanism, a compress-gas generator, and a tubular element between the drive mechanism and the compressed-gas generator. Also, the element incl

A rotary power element for tensioning devices of safety mechanisms for protecting the occupants of vehicles by the use of safety belts has a rotatable drive mechanism, a compress-gas generator, and a tubular element between the drive mechanism and the compressed-gas generator. Also, the element includes at least one preformed acceleration member arranged in the tubular element. This member is capable of being driven forward against the drive mechanism under the action of compressed gas produced by said compressed-gas generator to accelerate the drive mechanism.

대표청구항 ▼

A rotary power element for actuating tensioning devices which comprises a rotatable drive mechanism, a compressed-gas generator means, a tubular element between the drive mechanism and the compressed-gas generator means, and a plurality of preformed acceleration members arranged in mutual contact wi

A rotary power element for actuating tensioning devices which comprises a rotatable drive mechanism, a compressed-gas generator means, a tubular element between the drive mechanism and the compressed-gas generator means, and a plurality of preformed acceleration members arranged in mutual contact with each other in said tubular element, said compressed-gas generator means including a propellant charge means for simultaneously driving said acceleration members in mutual contact forward through and out of said tubular element against the drive mechanism under the action of compressed gas to rotate and to accelerate the drive mechanism.