Patent ID: 9216313
Filing Date: 2015-12-22
Classification: A63B

Abstract:
1. An elastic cord comprising: a hollow outer elastic cord including a first end and a second end spaced from the first end in a longitudinal direction, with the hollow outer elastic cord further including an outer periphery and an inner periphery spaced from the outer periphery in a radial direction perpendicular to the longitudinal direction, with a rib extending from the inner periphery, with the rib extending from the first end through the second end of the hollow outer elastic cord, and with the rib including a longitudinal hole extending from the first end through the second end of the hollow outer elastic cord; and an elastic string received in the longitudinal hole of the rib, with the elastic string including two ends respectively located in the first and second ends of the hollow outer elastic cord, and with the elastic string having a maximal elongation larger than a maximal elongation of the hollow outer elastic cord.