US 12,444,728 B2
Joining device
Ayaka Wakasugi, Tokyo (JP); Daigo Mukasa, Tokyo (JP); and Toru Ikeda, Tokyo (JP)
Assigned to Honda Motor Co., Ltd., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 30, 2023, as Appl. No. 18/128,311.
Claims priority of application No. 2022-058534 (JP), filed on Mar. 31, 2022.
Prior Publication US 2023/0317915 A1, Oct. 5, 2023
Int. Cl. H01M 4/04 (2006.01)
CPC H01M 4/0435 (2013.01) 7 Claims
OG exemplary drawing
 
1. A joining device that joins a sheet-like first workpiece and a sheet-like second workpiece, comprising:
a first roller that attaches the first workpiece to a roller outer peripheral surface of the first roller, rotates the attached first workpiece in a conveying direction, and conveys the first workpiece;
a second roller that attaches the second workpiece to a roller outer peripheral surface of the second roller, rotates the attached second workpiece in the conveying direction, and joins the second workpiece by heat to the first workpiece conveyed by the first roller; and
a heater that is provided to at least one of the first roller or the second roller and generates heat required for the joining,
wherein
the second roller includes:
a main body drum that is rotatably supported;
a plurality of protruding portions that are provided at intervals in a rotational direction of the main body drum and protrude from an outer peripheral surface of the main body drum toward a radial direction of the main body drum; and
a plurality of suction portions that are provided to each of the protruding portions to attach the second workpiece to an end surface of the protruding portion,
the first roller conveys the first workpiece to which the second workpiece is joined, and
a radius of curvature of an end face of the protruding portion is smaller than a radius of curvature of a suction surface of the first roller to which the first workpiece is attached.