US 11,744,328 B1
Tightness adjusting device for shoeslaces
Liyong Chen, Fujian (CN); Qiuyun Liang, Fujian (CN); and Zhiliang Yao, Fujian (CN)
Assigned to SHOES-LOCK SPORTS EQUIPMENT CO., LTD., Fujian (CN)
Filed by SHOES-LOCK SPORTS EQUIPMENT CO., LTD., Fujian (CN)
Filed on Mar. 3, 2023, as Appl. No. 18/117,004.
Application 18/117,004 is a continuation of application No. PCT/CN2023/074075, filed on Feb. 1, 2023.
Int. Cl. A43C 7/08 (2006.01)
CPC A43C 7/08 (2013.01) 10 Claims
OG exemplary drawing
 
1. A tightness adjusting device for a shoelace comprising: a connection mechanism and a traction mechanism, wherein the traction mechanism comprises a traction assembly, the traction assembly comprises a ring member hinged with the connection mechanism, and the traction mechanism further comprises an elastic adjusting assembly;
the elastic adjusting assembly comprises a connection block, two clamping blocks, an elastic member and a linkage member, a connection portion is connected to each of two ends of the connection block, the connection portion is detachably connected to the ring member, the connection block divides the ring member into two shoelace holes for accommodating shoelaces, each of the two clamping blocks is hinged with the connection block, the elastic member is connected among the connection block and the two clamping blocks, the elastic member is configured to keep the two clamping blocks away from each other, each of the two clamping blocks is connected to the connection portion by the linkage member, and the linkage member is configured to disengage the connection portion from the ring member when the two clamping blocks are pinched to abut against each other.