US 11,681,249 B2
Heating device and heat generating member
Shuji Yokoyama, Sunto Shizuoka (JP)
Assigned to TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 8, 2022, as Appl. No. 17/688,956.
Application 17/688,956 is a continuation of application No. 17/337,483, filed on Jun. 3, 2021, granted, now 11,300,909.
Claims priority of application No. JP2020-157077 (JP), filed on Sep. 18, 2020.
Prior Publication US 2022/0197202 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2057 (2013.01) [G03G 15/2053 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heating device, comprising:
a belt having a tubular shape; and
a contact member provided inside the belt, the contact member having an arc shape along an inner peripheral surface of the belt and slidably in contact with the inner peripheral surface of the belt, wherein
when an amount of deflection of the belt is D, a radius of curvature of the inner peripheral surface of the belt is A, and a radius of curvature of the outer peripheral surface of the contact member is B, equations (1) and (2) are satisfied:
D≥10 mm  (1), and
0.4 mm≥A−B≥0 mm  (2).