| 摘要 |
The invention is a self-contained protective device/system (12) designed to protect the hips, pelvis, buttocks, and coccyx areas. The device (12) may be worn outside of the clothing, and because it is small in size and lightweight, it may be easily put on and removed and does not interfere with body movements. It contains the following components: an inflatable air bag folded into pleats (22), a battery (42), a gas source (3), sensors to determine angular motion and acceleration (32), a triggering/valve mechanism to release the gas (34) and a relief valve (36). When the user falls, the sensors automatically release gas from the cartridge and inflate the air bag assembly, forcing the folded pleats to fully cover said areas. After use the relief valve is opened to release air from the air bag assembly, the pleats are reinserted into the system and the invention is ready for reuse after the spent cartridge is replaced.
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