US 12,256,813 B2
Band device, wristwatch, and end piece
Kentaro Matsunaga, Tokyo (JP); and Tatsuhito Aono, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/759,197
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jan. 15, 2021, PCT No. PCT/JP2021/001222
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/153268, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 2020-013153 (JP), filed on Jan. 30, 2020.
Prior Publication US 2023/0050315 A1, Feb. 16, 2023
Int. Cl. A44C 5/14 (2006.01); A44C 5/24 (2006.01)
CPC A44C 5/14 (2013.01) [A44C 5/24 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A band device, comprising:
a sensor unit; and
a band unit linked to the sensor unit, wherein
the band unit form a hollow part together with the sensor unit, and
the band unit includes:
an end piece section to which a watch head section is attached, and
an engaging section configured to make detachable engagement in a state where the band unit is wrapped around a wrist, wherein
the engaging section is on one of an inner surface of the band unit on a side of the hollow part or an outer surface of the band unit on a side opposite to the side of the hollow part,
the engaging section includes a strip-shaped protrusion that extends in a first direction parallel to an extending direction of the band unit on the inner surface, and
the strip-shaped protrusion includes a comb-teeth portion on both side surfaces of the strip-shaped protrusion.