JPS6418056U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is an exploded perspective view of the paper feeding device, Fig. 2 is a side sectional view, Fig. 3 is a plan sectional view, and Fig. 4 is an exploded perspective view of the paper feeding device. FIG. 5 is a cross-sectional view taken along the line -- in FIG. 2, FIG. 6 is a cross-sectional view showing the lock lever in the unlocked state, and FIG. 7 is a cross-sectional view showing the lock lever in the locked state. Figure 8 is a side sectional view showing the conventional one;
FIG. 9 is a sectional view taken along the line -- in FIG. 8. 1... Endless belt, 2... Drive-side arc-shaped running section, 3... Drive-side arc-shaped running section, 4, 5... Straight-line running section, 6... Feed pin, 11, 12...
Side frame, 15... Drive sprocket, 1
9, 20... Arc guide member, 21... Second support roller, 22, 23... First support roller, 45
,46...notch.

Claims (1)

[Claims for Utility Model Registration] (1) In a paper feeding device for feeding paper to a printer, in which a row of perforations are formed at the same intervals on both sides of the paper, the perforations are arranged parallel to each other at a predetermined interval. a frame in which a pair of side frames provided are fixed to each other; a drive sprocket rotatably mounted on a shaft between both the side frames at a first end of the frame and driven by a drive shaft; At a second end of the frame, a shaft frame is rotatably mounted between the side frames at a position spaced at a predetermined distance in a direction perpendicular to a line connecting the second end and the first end. a pair of first support rollers that are connected to each other at a second end of the frame;
an arcuate guide member formed in a position opposite to the drive sprocket with respect to the support roller, and facing the inner surfaces of the both side frames and protruding in a ridge shape; the drive sprocket and the first support roller; and an arcuate running section extending over the arcuate guide member and extending along the outer periphery of the drive sprocket;
A circular running section along the outer periphery of the first supporting roller and an outer circumferential surface of the arc-shaped guide member, and two linear running sections connecting these arc-shaped running sections are formed, and the paper is attached to the outer circumferential surface. an endless belt having a plurality of feed pins protruding at the same intervals as the feed holes formed in the belt; and an endless belt rotatably supported between the side frames at a position between the drive sprocket and the first support roller. and a second support roller that supports the inner circumferential surface of the endless belt in both linear running sections with its outer circumferential surface, and the arcuate guide member abuts the inner circumferential surface at both side edges of the endless belt. The second support rollers support only the widthwise central portion of the endless belt, and are opposed to each other at a predetermined interval so as not to contact the widthwise central portion of the endless belt. A paper feeding device characterized in that it is configured to come into contact with. (2) The outer surface of the arc-shaped guide member that guides the endless belt is formed into an arc whose extension line from both ends touches the outer surface of the pair of first support rollers. Paper feed device.