JPS6194833U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a schematic configuration diagram of a diazo copying machine to which an embodiment of the present invention is applied, Figure 2 is a configuration diagram around the photosensitive paper detection mechanism, and Figure 3 is a view of Figure 2 from the direction of arrow A-A. 4 is a perspective view showing the main parts of the device of the above embodiment, FIG. 5 is a sectional side view of the spring clutch mechanism of the device of the embodiment, and FIG. 6 is a sectional side view of the spring clutch mechanism of the device of the embodiment. Fig. 7 is a diagram showing a state in which the timing cam in the same embodiment device is held at the initial rotation position, and Fig. 8 is a diagram from Fig. 7 showing a state in which the roller of the follower lever rides on the bulging edge of the timing cam. The action diagram, FIG. 9, is the action diagram from FIG. 8 showing the state in which the roller has fallen into the intermediate step of the timing cam. 12...Original paper insertion slot, 13...Original paper feeding roller pair, 15...Original paper detection device, 16...
...Photosensitive paper feed roller, 17...Tip alignment member,
61... Merging passageway, 261... Tongue piece, 262...
Light emitting element, 263... Light receiving element, 321... First
Clutch, 334...Second clutch, 339
...timing cam.

Claims (1)

[Scope of claim for utility model registration] The original paper inserted from the original paper insertion slot is sent into the machine by a pair of original paper feed rollers, and
The photosensitive paper in the photosensitive paper storage section is fed into the machine by the photosensitive paper feed roller, and both sheets are aligned against the leading edge alignment member that can move forward and backward in this conveyance path to align the leading edges of both sheets, and then both sheets are transferred to the exposure section. In a diazo copying machine configured to feed paper, a first clutch is connected to the output side of the first clutch, which disconnects rotational transmission from a drive source to a pair of original paper feed rollers, and is maintained in a continuous mode during normal use. and the first
When the second clutch that connects and disconnects the transmission of rotation from the clutch to the photosensitive paper feed roller, and the first clutch are in the connection mode, and the original paper is fed into the machine by the pair of original paper feed rollers. , an original drawing paper detection device that detects the leading edge of the original drawing paper and switches the second clutch from a disconnection mode to a connected mode based on the detection signal; During one rotation from the initial rotation position together with the output side of the clutch, the leading edge aligning member is advanced into the conveying path to close the passage, and after the leading edges of both sheets of paper are aligned by the advanced leading edge aligning member. , a timing cam for retracting the leading edge alignment member from the conveyance path, and a timing cam that detects whether or not the photosensitive paper is fed to the conveyance path from the photosensitive paper feed roller. A paper conveyance drive control device comprising: a photosensitive paper detection device for switching a first clutch to a cutting mode while a leading edge alignment member maintains a closed position before the cam rotates back to the initial rotation position.