US 11,953,842 B2
Light guide device, drum unit, image forming apparatus, and image reading apparatus
Mori Hayato, Osaka (JP); and Ueno Masahiro, Osaka (JP)
Assigned to KYOCERA DOCUMENT SOLUTIONS INC., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Oct. 25, 2022, as Appl. No. 17/972,753.
Claims priority of application No. 2021-190949 (JP), filed on Nov. 25, 2021.
Prior Publication US 2023/0161281 A1, May 25, 2023
Int. Cl. G03G 15/04 (2006.01); G02B 6/42 (2006.01); G03G 21/08 (2006.01); F21V 8/00 (2006.01)
CPC G03G 15/04036 (2013.01) [G02B 6/4256 (2013.01); G03G 21/08 (2013.01); G02B 6/0001 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A light guide device comprising:
a support member;
a light guide member supported by the support member and having a light incident surface upon which light is incident;
a first abutting part that is provided on the light guide member and positions the light guide member at a predetermined first reference position in the support member by abutting against an abutted part of the support member;
a cover member attached to the support member and covering the light guide member; and
a first biasing part that biases the light guide member in an abutting direction in which the first abutting part abuts the abutted part, with the cover member attached to the support member,
wherein
the cover member includes an engaging part that engages with an engaged part of the support member in a state where the first biasing part generates a biasing force in the abutting direction.