The invention discloses an air sac type pre-protection safety belt comprising a safety belt. A compression cavity is disposed in the safety belt; an air sac is foldably arranged in the compression cavity; a slit is formed in one side of the safety belt close to a chair; the end part of the air sac is provided with an air inlet; an arc-shaped recessed part is arranged on the side wall facing to the slit of the middle of the air sac; and the inner wall of the middle of the recessed part is provided with a tightening port. During quick changes of driving vehicle states, the safety belt and an air pump connected with a vehicle driving safety system start to work and directly inflate the air sac; the main contact parts between the safety belt main body and the upper trunk are areas from the shoulders to the chest part and to the belly side; and the arc-shaped recessed part in the middle of the air sac is adaptive to the contact parts, so injection damage to the contact parts by the middle of the air sac after collision can be prevented.
Air sac type pre-protection safety belt
2016-01-20
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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