Abstract: A one-way clutch having a pawl member whose attitude is controlled in accordance with the direction of rotation of the input side of the clutch and which turns as the input side rotates in a given direction thus operating to change over between transmission and non-transmission of a driving force by controlling engagement and disengagement in accordance with the direction of rotation and the attitude of the pawl member. In application of this one-way clutch to winding and rewinding devices for cameras when one of a pair of one-way clutches is in the transmitting state by rotation of the motor in a given direction, the other one-way clutch is prevented from becoming engaged as a result of motion of the film.

Abstract: A film feeding device for a camera having a rewind fork axially movable to release the spool hub of a film cartridge from the coupling connection therewith when exchanging the exposed film cartridge, wherein a sensing member is provided for detecting either when a fresh film cartridge is inserted into and seated in a chamber within the camera housing at a prescribed position, or when the back cover of the camera is closed, whereby when either one of the two events occurs, the aforesaid rewind fork is caused to return to the engaging position with the spool hub.