Patent ID: 9642446
Date: 2017-05-09
CPC Classifications: A45F,Y10T

Claim:
1. A two-layer wristband, comprising: a first U-shaped symmetrical band having two curved portions, an inner surface and an outer surface being opposite to the inner surface, a hollow portion is formed on each area between one of the curved portions and one of the ends of the first U-shaped symmetrical band respectively, a protruding vertical wall is disposed at the inner surface of the periphery of the hollow portion, a horizontal wall is further disposed at least at a part of the protruding vertical wall, the protruding vertical wall extends away from the inner surface, the horizontal wall extends from the protruding vertical wall toward the hollow portion; and a second U-shaped symmetrical band having two curved portions, an inner surface and an outer surface being opposite to the inner surface, wherein the outer surface of the second U-shaped symmetrical band is adhered to the inner surface of the first U-shaped symmetrical band, the outer surface of the second U-shaped symmetrical band has a depressed portion, a pair of ring-shaped grooves are formed in the depressed portion, each of the ring-shaped grooves has a vertical part and a horizontal part, the first U-shaped symmetrical band is appropriately placed in the depressed portion, the vertical wall of the first U-shaped symmetrical band joins the vertical part while the horizontal wall of the first U-shaped symmetrical band joins the horizontal part.