Inflatable safety vest

A body protection device for a person riding a vehicle, comprising:

• an inflatable vest having an exterior and an airtight interior;
• a compressed gas cartridge attached to the exterior of the vest;
• a cartridge actuation mechanism operably connected to the cartridge and comprising:
• a triggering device that is operable to open the cartridge;
• and
• an actuation lever operatively connected to the triggering device so as to actuate the triggering device in response to a pulling force of a predetermined magnitude, wherein the actuation lever is detachable from the actuation mechanism in response to the pulling force of predetermined magnitude;
• an inflation tube having a first end connected to the gas cartridge through the actuation mechanism and a second end opening into the interior of the vest, whereby gas can flow from the cartridge into the interior of the vest through the inflation tube when the cartridge is opened by the triggering device;
• a lanyard having a first end connected to the actuation lever and a second end that is attachable to the vehicle, whereby the application of the pulling force of predetermined magnitude to the lanyard actuates the triggering device and separates the actuation lever from the actuation mechanism;
• a deflation tube communicating between the interior of the vest and the ambient atmosphere;
• a deflation valve in the deflation tube, the valve being rotatably operable between a closed position and an open position through which the vest may be deflated through the deflation tube;
• a length-adjustable cross-strap attached to the outside of the vest for adjusting the fit of the vest on a person;
• a buckle on the cross-strap that is operable to adjust the length of the cross-strap;
• and
• means on the cross-strap for removably holding the gas cartridge.