JPS6232061U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a sectional view schematically showing the mechanism of a copying apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing details of the paper ejection roller 25 of the apparatus shown in FIG. 1. FIG. 3 is a side view of the scraping roller 36a of FIG. 2. FIGS. 4a and 4b are explanatory diagrams illustrating recording sheet feeding by the paper discharge roller 25. FIG. FIG. 5 is a side view of a scraping roller showing another embodiment of the present invention. 6a and 7a are perspective views showing an example of a conventional sheet feeding device, and FIGS. 6b and 7b are explanatory diagrams illustrating sheet feeding by the sheet feeding device of FIGS. 6a and 7a, respectively. It is. 1: Contact glass, 2: Pressure plate, 3: Exposure lamp, 4: First mirror, 5: Second mirror, 6: Third mirror, 7: Condenser lens, 8: Fourth mirror, 9
: Photosensitive drum, 10: Discharge lamp, 11: Charger, 12: Eraser, 13: Developing unit, 14: Transfer charger, 15: Separation charger, 16: Separation claw, 17: Cleaning unit, 18, 19: Paper feed Cassette, 20, 21: Paper feed roller, 22: Registration roller, 23: Conveyance belt, 24: Fixing unit, 25: Paper ejection roller, 26
: Paper output tray, 30, 54, 64: Upper roller,
30: (opposed roller), 31, 66a, 66b,
66c: Pressure roller, 32, 55, 65: Driven shaft, 33, 50, 60: Lower roller, 34, 51,
61: Drive shaft, 34: (roller shaft), 35a, 3
5b, 35c, 52a, 52b, 62a, 62b
: Drive roller, 35a, 35b, 35c: (trunk roller), 36a, 36b, 63a, 63b: scrape feed roller, 36a, 36b: (rake feed roller), 53a, 53b, 53c, 57a, 57b
, 57c, 57d: sheet feed roller, 56a,
56b: driven roller, PA: recording sheet.

Amendment September 9, 1980 The brief description of the drawing is amended as follows. Specification page 20, line 3 “35a, 35b, 35
c, 52a, 52b, 62a, 62b:" is replaced with "35a, 35b, 35c, 52a, 52b.
, 62a, 62b, 62c:''. Specification page 20, lines 8-9 “Seat feed roller”
Correct the statement to read "sheet feed roller."

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of trunk rollers having substantially cylindrical circumferential surfaces; A roller shaft that integrates the trunk rollers; Divided circumferential surfaces that are substantially continuous with the peripheral surface of the trunk rollers. and a plurality of elastic ridges distributed in the circumferential direction that are continuous with the circumferential surface and have protrusions that protrude outward from the circumferential surface of the trunk roller, and are disposed between the trunk rollers, a scraping roller whose center portion is fixed to the roller shaft; and an opposing roller having a cylindrical circumferential surface that is in contact with the circumferential surfaces of a plurality of the trunk rollers and in contact with the circumferential surface of the scraping roller; A sheet feeding device comprising: (2) The elastic origin has a leg that stands up in the radial direction from the center, and the radius of the leg is substantially equal to the radius of the circumferential surface of the trunk roller, and the center gradually increases as it moves away from the leg. The sheet feeding device according to claim 1, wherein the sheet feeding device is a bent piece having a head portion that is continuous with the leg portion and has a circumferential surface that projects outward from the leg portion. (3) The elastic origin has legs that stand up in the radial direction from the center, a circumferential surface with a radius substantially equal to the radius of the circumferential surface of the trunk roller, and a tip that is away from the legs and extends outward from the circumferential surface. The sheet feeding device according to claim 1, which is a bent piece having a head portion continuous with the leg portion and having a protruding projection.