Wearable airbag device

Abstract

A wearable airbag device is configured to protect a targeted body part of a wearer, and includes an airbag configured to inflate to cover the targeted body part by allowing an inflation gas to flow thereinto. The airbag has a plurality of columnar inflation portions in which width dimensions are set to be smaller than that of the targeted body part, and configured to maintain an arranged state of the columnar inflation portions when the inflation is completed, and to protect the targeted body part.

What is claimed is: 
     
         1 . A wearable airbag device configured to protect a targeted body part of a wearer, comprising:
 an airbag configured to inflate to cover the targeted body part by allowing an inflation gas to flow thereinto, wherein   the airbag has a plurality of columnar inflation portions in which width dimensions are set to be smaller than that of the targeted body part, and configured to maintain an arranged state of the columnar inflation portions when the inflation is completed, and to protect the targeted body part.   
     
     
         2 . The wearable airbag device according to  claim 1 , wherein
 the targeted body part includes left and right femoral trochanter circumferential edge parts of the wearer, and a head, and   the airbag includes a hip protecting portion that inflates to cover a side of the femoral trochanter circumferential edge part, and a head protecting portion that inflates to cover at least back of the head, and is configured to position the hip protecting portion on an upstream side of a flow of the inflation gas, and inflate the head protecting portion after inflating the hip protecting portion.   
     
     
         3 . The wearable airbag device according to  claim 1 , wherein,
 the airbag is configured to have an overlapping region in which the columnar inflation portions are arranged to be stacked on a surface of the targeted body part when the inflation is completed.   
     
     
         4 . The wearable airbag device according to  claim 1 , wherein,
 the airbag is formed by arranging the columnar inflation portions in a single stroke manner.   
     
     
         5 . The wearable airbag device according to  claim 1 , wherein,
 the airbag is configured to allow the columnar inflation portions to communicate with each other by intersections.