US 12,303,732 B2
Assembled dumbbell and dumbbell main body thereof
Chun-Wei Lee, New Taipei (TW)
Filed by Chun-Wei Lee, New Taipei (TW)
Filed on Aug. 28, 2023, as Appl. No. 18/457,005.
Claims priority of application No. 111210853 (TW), filed on Oct. 4, 2022.
Prior Publication US 2024/0108935 A1, Apr. 4, 2024
Int. Cl. A63B 21/072 (2006.01)
CPC A63B 21/0726 (2013.01) [A63B 2225/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A dumbbell main body, comprising:
two side boards, each of the two side boards comprising a containing space, a side-board upper chute, a side-board lower chute, a plurality of fastening holes and two fastening blocks, wherein one of the fastening blocks is located above the other fastening block;
a connecting shaft, two ends of the connecting shaft respectively connected to the two side boards;
a rotating unit, comprising:
two rotating rings, respectively pivoted to the two ends of the connecting shaft;
four connecting boards, respectively connected to the two rotating rings, wherein two of the connecting boards are located above the other two connecting boards;
four sliding rods, respectively disposed at the four connecting boards, respectively located at the side-board upper chutes and the side-board lower chutes of the two side boards, and respectively connected to the two fastening blocks of the two side boards; and
a horizontal connecting board, two ends of the horizontal connecting board respectively connecting the other two connecting boards; and
a fastener, connected to the horizontal connecting board, for fixing with any of the fixing holes.