US 12,358,547 B2
Baby stroller and backrest angle adjusting mechanism thereof
Zhiren Zhong, Guangdong (CN)
Assigned to WONDERLAND SWITZERLAND AG, Steinhausen (CH)
Filed by WONDERLAND SWITZERLAND AG, Steinhausen (CH)
Filed on Nov. 13, 2023, as Appl. No. 18/507,773.
Application 18/507,773 is a continuation of application No. 17/458,875, filed on Aug. 27, 2021, granted, now 11,851,100.
Claims priority of application No. 202021852682 (CN), filed on Aug. 28, 2020.
Prior Publication US 2024/0083486 A1, Mar. 14, 2024
Int. Cl. B62B 9/10 (2006.01); B62B 7/06 (2006.01)
CPC B62B 9/104 (2013.01) [B62B 7/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A baby stroller comprising a stroller frame, a seat provided at the stroller frame, a backrest tube, the baby stroller comprising:
a first support for connecting to one of the backrest tube and the stroller frame;
a second support connected to the other one of the backrest tube and the stroller frame;
a third support connected to a rear end of a seat of the baby stroller;
wherein the second support is pivotally connected between the first support and the third support;
wherein the stroller frame drives the second support to pivotally rotate relative to the third support during folding of the stroller frame so as to drive entire backrest assembly of the baby stroller to pivotally rotate and fold;
wherein the stroller frame drives the second support to pivotally rotate relative to the third support during unfolding of the stroller frame so as to drive entire backrest assembly of the baby stroller to pivotally rotate and unfold.