US 12,329,708 B1
Handheld roller
Suge Lin, Lufeng (CN)
Filed by Suge Lin, Lufeng (CN)
Filed on Aug. 30, 2024, as Appl. No. 18/820,335.
Int. Cl. A61H 15/00 (2006.01)
CPC A61H 15/0092 (2013.01) [A61H 2015/0014 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A handheld roller, comprising:
at least two roller assemblies, wherein each of the roller assemblies comprises two connectors, and a roller having a first end and an opposite second end, each of the first end and the second end of the roller is provided with a mounting hole, the two connectors are mounted in the mounting holes in a manner of interference fit, each of the connectors comprises an enclosed bottom, a bearing groove and a connecting portion, with the bearing groove being disposed around the connecting portion, and both the connecting portion and the bearing groove extending from one side of the enclosed bottom, away from the rollers;
two end covers, wherein each of the end covers is provided with a plurality of rotating shaft holes corresponding to the roller assemblies, one end cover is covered at the first end of each roller assembly, and the other end cover is covered at the second end of each roller assembly;
a plurality of bearings, wherein each of the bearings is plugged into one of the bearing grooves, and outer surfaces of the bearings abut against one side of the end covers that face the roller assemblies; and
a plurality of connecting shafts, wherein each of the connecting shafts comprises a connecting end passing through one of the rotating shaft holes and connected with one of the connecting portions, a free end of the connecting shaft abuts against the end covers, and the connecting shaft and the roller assemblies form a whole;
when the roller assemblies rotate around axes thereof under the drive of an external force, both the roller assemblies and the connecting shaft rotate in relative to the end covers.