| 摘要 |
The present invention relates to a bladder of floating-assistant vest in which a chest bladder and a back bladder are provided and fit with the ergonomic of human being's shoulder; the waterproof fabric blanks are tailored so a W-shaped sheet member composed by the two tailored waterproof fabric blanks is formed, the top end of the concave collar located at the center of the sheet member is provided with a rear sheet, the two ends of the rear sheet are respectively provided with a front sheet that downwardly and tiltingly extends, and a connecting sheet is upwardly and tiltingly extended from each bottom end of the front sheets, then the edge of the W-shaped sheet members is sealed so a hollow bladder member is formed; the shoulder portions of the two ends of the collar are tilted with an angle by the two front sheets closing to each other. When the bladder is desired to be fabricated to an inflatable floating-assistant vest, the rear sheet and the two front sheets are connected with a direct or an indirect fashion, and an open/close device is connected to the inner ends of the two front sheets of the bladder so as to achieve: (a) when the two front sheets are buckled, a shoulder shape that fit the ergonomic of human being's shoulder is formed on the shoulder portion; and (b) the inflatable float-assistant vest has a chest bladder and a back bladder communicating with each other.
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