US 12,441,136 B2
Luggage caster for maintenance and replacement and vertical shaft thereof
Jiandao Chen, Wenzhou (CN)
Assigned to Lianying Yu, Shanghai (CN)
Filed by Lianying Yu, Shanghai (CN)
Filed on Jun. 24, 2024, as Appl. No. 18/751,374.
Claims priority of application No. 202323448821.5 (CN), filed on Dec. 18, 2023.
Prior Publication US 2025/0196534 A1, Jun. 19, 2025
Int. Cl. B60B 33/00 (2006.01); A45C 5/14 (2006.01)
CPC B60B 33/0068 (2013.01) [A45C 5/143 (2013.01); B60B 33/0002 (2013.01); B60B 33/0028 (2013.01); B60B 33/0042 (2013.01); B60B 33/0049 (2013.01); B60B 33/0057 (2013.01); B60B 33/0073 (2013.01); B60B 2200/45 (2013.01); B60B 2310/311 (2013.01); B60B 2900/113 (2013.01); B60B 2900/541 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A luggage caster for maintenance and replacement, comprising: a wheel frame, a vertical shaft, and trolley wheels in a clearance fit with the wheel frame; wherein the vertical shaft is configured to rotate axially within a vertical shaft hole of the wheel frame; a bottom end of the vertical shaft defines a riveting hole, and the bottom end of the vertical shaft is provided with a riveting flange surrounding the riveting hole; a top end of the vertical shaft is provided with a limiting plate that cooperates with the riveting flange to achieve an axial limitation of the vertical shaft in the vertical shaft hole; the top end of the vertical shaft is further provided with an installation head that protrudes from the limiting plate; the installation head is configured to insert into a shaft hole of a luggage bottom support; the riveting hole of the vertical shaft extends axially along the vertical shaft to define an anti-rotation tool hole, and the anti-rotation tool hole is configured to cooperate with the vertical shaft to achieve linkage locking along a circumferential direction of the vertical shaft after a tool is inserted into the anti-rotation tool hole; the installation head of the vertical shaft is provided with a threaded structure, and the threaded structure is threaded with a limiting fastener; and the limiting fastener is configured to match with the luggage bottom support axially, thereby limiting the installation head in the shaft hole of the luggage bottom support.