Patent ID: 9301578
Filing Date: 2016-04-05
CPC Classification: A44B,Y10T

Claim Text:
1. A belt length adjuster for use with a belt member, the belt length adjuster comprising: a frame body having a substantially square shape defined by two outer frames joined together at respective ends by two longitudinally extending connecting frames; a support frame provided between the two outer frames and stretching to and between the two connecting frames; two inner frames provided between the support frame and the respective two outer frames, the inner frames stretching to and between the connecting frames; two first insertion spaces provided between the support frame and the respective inner frames; two second insertion spaces provided between the respective inner frames and the respective outer frames; wherein the support frame is configured to support a first end part of a belt member, the two first insertion spaces are configured to receive the first end part of the belt member and the two second insertion spaces are configured to receive a second end part of the belt member; both of the inner frames have a height higher than the support frame in a longitudinal mid section; a width of each of the second insertion spaces through which the second end of the belt member passes is wider than a width of each of the first insertion spaces through which the first end of the belt member passes; the frame body throughout a whole longitudinal extent is curved in a convex arc shape in longitudinal section; the support frame is divided at a substantially central part into two divided parts each extending inwardly from a respective connecting frame, and an insertion opening for the belt member is provided between the two divided parts; and a slip-out prevention member extending in height from each of top and bottom surfaces of each divided part is provided on a tip end part of each of the divided parts of the support frame to prevent the belt member from slipping out from the divided parts.