| 摘要 |
<p>A bag includes bagbody, backstraps, waistbells and shock absorber; and further includes pressure sensor, weight display, overweight alarm circuit, air cushion, adjustable handgrip, protect-vertebrae shock-absorbing cushion and unreel unit. The shock absorber is at the portion suitable to connect the backstraps of the bagbody, the backstraps joint the body with shock absorber. The pressure sensor is located in the shock absorber. The weight display and overweight alarm circuit are at the external surface of the bagbody, and electrically joint the pressure sensor. The air cushion is located at the backstraps corresponding to the human shoulder, and the adjustable handgrip sockets the portion of backstraps between the shock absorber and air cushion. The protect-vertebrae shock-absorbing cushion sets at the lower part of the bagbody corresponding to the human waist. The waist belt joints the bagbody with unreel unit. This invention can reduce the wallop to user shoulder and display the bag weight, and also alarm overweight.</p> |
