US 12,233,931 B2
Vehicle frame and baby stroller
Jian-Qun Li, Guangdong (CN)
Assigned to WONDERLAND SWITZERLAND AG, Steinhausen (CH)
Filed by Wonderland Switzerland AG, Steinhausen (CH)
Filed on Jan. 23, 2024, as Appl. No. 18/419,568.
Application 18/419,568 is a continuation of application No. 16/734,427, filed on Jan. 6, 2020, granted, now 11,912,328.
Claims priority of application No. 201910012594.0 (CN), filed on Jan. 7, 2019.
Prior Publication US 2024/0157994 A1, May 16, 2024
Int. Cl. B62B 7/08 (2006.01)
CPC B62B 7/08 (2013.01) 18 Claims
OG exemplary drawing
 
1. A vehicle frame, comprising:
a first tube;
a second tube pivoted to the first tube;
a third tube pivoted to the second tube; and
a foldable unit comprising a fourth tube, an end of the fourth tube being pivoted to the first tube, and the other end of the fourth tube being pivoted to the third tube, a linkage mechanism being formed by connection between the first tube, the second tube, the third tube and the fourth tube, rotation of the first tube moving the second tube and the third tube close to each other or away from each other via link of the fourth tube for folding or unfolding the vehicle frame;
a locking device disposed on the linkage mechanism and adapted to lock motion of the linkage mechanism, the first tube and the fourth tube being pivoted via the locking device, wherein the locking device comprises a first installing component, a second installing component and a locking component, the first tube is connected to the first installing component, the fourth tube is connected to the second installing component, the first installing component is pivoted to the second installing component, the locking component is movably disposed between the first installing component and the second installing component, so as to lock or unlock a pivot of the first installing component relative to the second installing component via motion of the locking component.