Granted Patent B2

US 12,346,049 · App. 17/715,021 · Granted Jul 1, 2025

Inventors: Shinnosuke Kondo (Kanagawa, JP); Naoyuki Kato (Kanagawa, JP); Kenji Yamada (Kanagawa, JP); Satoshi Noda (Kanagawa, JP); Kenichi Ishikura (Kanagawa, JP); Takahiro Iizuka (Kanagawa, JP); Hiroyuki Tanaka (Kanagawa, JP); Shinya Hasegawa (Kanagawa, JP); Kota Tomioka (Kanagawa, JP); Yoichi Yamakawa (Kanagawa, JP); Tomonori Sato (Kanagawa, JP); Ryusuke Nakata (Kanagawa, JP); Kazuyuki Koda (Kanagawa, JP); Isamu Adachi (Kanagawa, JP); Miho Morita (Kanagawa, JP); Tomomi Ishida (Kanagawa, JP); Shinichi Ohba (Kanagawa, JP); Taisuke Endo (Kanagawa, JP); Yuya Shiokawa (Kanagawa, JP); Daisuke Ishihara (Kanagawa, JP); Kohei Tachibana (Kanagawa, JP)

Assignee: FUJIFILM Business Innovation Corp.

G03G15/5008G03G15/6552G03G21/1619

Abstract

Claims (47)

1. A driving device, configured to drive a driven unit and be accommodated in an accommodation device, the driving device comprising:

a frame disposed in the driving device to support the driven unit, the frame being formed of a metal sheet and including a first portion having a first distance from an outer wall of the accommodation device, and a second portion having a second distance from the outer wall, the second distance being longer than the first distance, and the first portion and the second portion being disposed in parallel with the outer wall;

a device substrate disposed between the frame and the outer wall and extending in a same direction as the outer wall; and

at least one driving unit disposed between the second portion and the outer wall and arranged on the device substrate at a side away from the outer wall, at least a part of the at least one driving unit being away from the outer wall by the first distance or more.

2. The driving device according to claim 1 ,

wherein the at least one driving unit includes a driving shaft and a driving portion body, and the driving shaft projects from the driving portion body in a direction closer to the outer wall.

3. The driving device according to claim 2 , further comprising:

a driving force transfer unit that transfers a driving force from the at least one driving unit to the driven unit.

4. The driving device according to claim 3 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

5. The driving device according to claim 2 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

6. The driving device according to claim 1 , further comprising:

a driving force transfer unit that transfers a driving force from the at least one driving unit to the driven unit.

7. The driving device according to claim 6 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

8. The driving device according to claim 6 ,

wherein a plurality of driven units are provided, and

the at least one driving unit transfers a driving force to each of a plurality of driving force transfer units provided in correspondence with the plurality of driven units.

9. The driving device according to claim 1 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

10. The driving device according to claim 1 ,

wherein the driven unit includes a protruding portion that projects further toward the outer wall than the first portion of the frame.

11. An image forming apparatus comprising:

a plurality of image forming units configured to be driven to form an image; and

a driving device configured to drive the plurality of image forming units,

wherein the driving device is the driving device according to claim 1 , and the driven device comprises the plurality of image forming units.

12. The image forming apparatus according to claim 11 ,

wherein the image forming apparatus is the accommodating device having the outer wall,

the plurality of image forming units each includes an image holding member that holds an image and a developing unit that develops the image held by the image holding member, and

each of the developing units includes a protruding portion that projects further toward the outer wall than the first portion of the frame.

13. A driving device, configured to drive a driven unit, the driving device comprising:

a frame disposed in the driving device to support the driven unit, the frame being formed of a metal sheet and including a first portion and a second portion, the second portion being located at a position further away from an outer wall of the driving device than the first portion, and the first portion and the second portion being disposed in parallel with the outer wall;

a device substrate disposed between the frame and the outer wall and extending in a same direction as the outer wall; and

at least one driving unit that drives the driven unit, the at least one driving unit being disposed at a position on an outer side of the frame and arranged on the device substrate at a side away from the outer wall, a front side of the at least one driving unit facing towards the second portion, and at least a part of the at least one driving unit having a distance from the outer wall by a magnitude greater than or equal to a distance between the first portion and the outer wall of the driving unit.

14. The driving device according to claim 13 ,

wherein the at least one driving unit includes a driving shaft and a driving portion body, and the driving shaft projects from the driving portion body toward the outer wall of the driving device.

15. The driving device according to claim 14 , further comprising:

a driving force transfer unit that transfers a driving force from the at least one driving unit to the driven unit.

16. The driving device according to claim 14 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

17. The driving device according to claim 13 , further comprising:

a driving force transfer unit that transfers a driving force from the at least one driving unit to the driven unit.

18. The driving device according to claim 17 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

19. The driving device according to claim 13 ,

wherein the first portion is located at a position corresponding to a back surface side of the driven unit.

Assignments (1)

Priority Claims (9)

Continuity (1)

References Cited (60)