To oscillate a claw from a standby position to a preparation position with high accuracy.
The claw device comprises a claw 36, holding plate 37, drive gear 38, torsion spring 39 and coil spring 40. The holding plate 37 is provided with a guide hole 46 of an approximately J shape, a guide hole 47 of an oblong hold and a cam follower 52. The flank of the drive gear 38 is provided with a drive cam 56 in an off-centered position. The claw 36 is fitted pivotally to the holding plate 37. The guide holes 46 and 47 are inserted and mounted onto pins 50 and 51 disposed at the sidewalls of a film pack chamber 27. The surface, having the drive cam 56, is confronted to the holding plate 37 and the drive gear 38 is mounted at the pin 51. The holding plate 37 is held in the standby position by energizing of the coil spring 40. When a developing motor is driven to rotate the drive gear 38, the drive cam 56 abuts against and thrusts the cam follower 52. As a result, the holding plate 37 is energized upwardly and is oscillated slowly and slid together with the claw 36 from the standby position to the preparation position by the shape of the guide hole 46.
KANAI MASAHARU
NAKAJIMA MASAKI
