Title:
CLUTCH DEVICE, PAPER FEEDER AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP3912880
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce noise which is generated at the time of releasing or returning of a lever when an engagement between a lock step part of a cam and the lever is released to drive a partially toothless gear by a drive gear.
SOLUTION: A partially toothless gear 28 capable of meshing with a drive gear 24, a cam 31 integrally rotatable with the partially toothless gear 28, energizing means 34 which gives an initial rotating force to the partially toothless gear 28 and the cam 31, a lever which is engaged with a lock step part 36 of the cam 31 and stops a rotation of the cam 31, a releasing means 41 for releasing the lever from the lock step part 36 of the cam 31, and a returning means 44 for returning the lever to a cam face are provided. The cam 31 has a cam release face adjacent to the lock step part 36 more downstream in the cam rotating direction than the lock step part 36, and a cam return face which is disposed more downstream than the cam release face and returns the lever released by the releasing means 41. A height of the cam return face is set higher than that of the cam release face.
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Inventors:
Susumu Ikuma
Application Number:
JP36022097A
Publication Date:
May 09, 2007
Filing Date:
December 26, 1997
Export Citation:
Assignee:
Canon Inc
International Classes:
B65H3/06; F16H27/08; (IPC1-7): F16H27/08; B65H3/06
Domestic Patent References:
| JP6050406A | ||||
| JP63043036A | ||||
| JP7269595A | ||||
| JP53093911A | ||||
| JP9112647A |
Attorney, Agent or Firm:
Masayuki Kishida
Hiroji Obana
Koji Shinbe
Honda Kodaira
Yonosuke Koga
Hiroji Obana
Koji Shinbe
Honda Kodaira
Yonosuke Koga