US 11,789,389 B2
Pressing device, fixing device, and image forming apparatus
Seiji Saitoh, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Seiji Saitoh, Kanagawa (JP)
Filed on Oct. 13, 2022, as Appl. No. 17/965,211.
Claims priority of application No. 2022-012203 (JP), filed on Jan. 28, 2022.
Prior Publication US 2023/0244167 A1, Aug. 3, 2023
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2064 (2013.01) 17 Claims
OG exemplary drawing
 
1. A pressing device comprising:
a pressure lever that is platy and has a thickness t, the pressure lever configured to pivot;
a cam configured to press the pressure lever; and
a cam follower mounted on the pressure lever and disposed opposite the cam, the cam follower configured to transmit pressure from the cam to the pressure lever,
the cam follower having a contact face configured to contact the cam and a side face being perpendicular to the contact face, the contact face having a length W in a thickness direction of the pressure lever and a length L1 in an orthogonal direction perpendicular to the thickness direction of the pressure lever, the length L1 defined from a contact position where the cam follower contacts the cam to the side face of the cam follower,
the thickness t, the length W, and the length L1 satisfying a relation defined by
L1≥0.6×(W−t)/2+0.2.