JPS59223636A - Copying device - Google Patents

Abstract

PURPOSE:To prevent an accident due to the protruded recording paper by pushing the tip of the recording paper which is protruded from a cassette when extracting the recording paper cassette from a machine body into the recording paper cassette with a guide member provided at the end position in the axial direction of a paper feed roller. CONSTITUTION:A paper feed bed 3 supported by a couple of guide rails 2A, 2B slidable in the longitudinal direction along a leg 1 is removably supported in a space A formed below a copying device proper B. A bottom plate 5 capable of mounting the recording paper is provided on a recording paper cassette 4 fitted on the paper feed bed 3, and this bottom plate 5 is sprung up toward a paper feed roller 8 by a spring-up member. In this case, a guide member 11 is provided adjacently to the paper feed roller 8 and in the extracting direction X of the paper feed bed 3 and recording paper cassette 4. And when the paper feed bed 3 is extracted, the tip corner of the recording paper protruded from the recording paper cassette 4 is brought into contact with the side surface of the vertical guide section of the guide member 11 so as to push the recording paper into the paper feed cassette 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying apparatus such as an electrophotographic copying machine, and particularly relates to an improvement in a paper feeding section thereof.

Recently, a copying device is being planned in which a large-diameter paper feed roller located at the bottom of one side of the machine takes out the recording paper from a record paper cassette that can be moved freely through the bottom of the machine into the paper feed path. However, a copying apparatus having such a structure has the following problems. That is, in this copying apparatus, the bottom plate of the recording paper cassette is flipped up toward the paper feed roller, and the paper is sent out one by one to the paper feed path by a separating member that comes into pressure contact with the paper feed roller. When pulling out the recording paper cassette from the machine, even if the bottom plate of the recording paper cassette is lowered, several sheets of recording paper remain sandwiched between the paper feed roller and the separating member. In particular, for this reason, if you forcefully pull out the recording paper cassette in a direction perpendicular to the paper feed direction, the recording paper that is protruding from the recording paper cassette may get caught directly on the machine body and tear, or the recording paper cassette cannot be pulled out. become. Moreover, the paper feed device t, etc. may be damaged by the recording paper.

In view of the above-mentioned problem when pulling out a recording paper cassette in a copying machine, the present invention provides a structure in which the recording paper protruding from the recording paper cassette is automatically dropped into the recording paper cassette. In a copying machine, a paper feed roller located at the bottom of one side of the machine takes out recording paper from a recording paper cassette that is removably located in a part of the machine body 5 into the paper feed path. , a guide member that can engage the leading edge corner of the recording paper is arranged at the axial end position of the paper feed roller, and when the recording paper cassette is pulled out from a part of the machine body, It is proposed that the leading edge of the recording paper be pushed into the recording paper cassette by a guide portion.

Hereinafter, details of the embodiments of the present invention regarding the M side will be explained! Explain l.

In FIG. 1, a flat 9-space A is formed between the legs of the 8-copy body of the copying device, and in the same space A, a pair of guide rails 2A that can slide in the front-rear direction along the legs 1, 21
A paper feed tray 3 supported at B is supported in a removable manner. The recording paper cassette 4 mounted on the paper feed tray 8 has a bottom plate 5 on which the recording paper a can be placed, as shown in the second figure. The upper dtlh fl is flipped up toward a large-diameter paper feed roller 8 built into one side door of the machine body B by the flip-up member 7. The distal end of a sorting member 10, whose base is supported by a sorting shaft 9, is in pressure contact with the circumferential surface of the paper feed roller 8, which is rotated IJff in the direction of the arrow. Note that the recording paper a fed out by the paper feed roller 8,
The sheet is conveyed into the machine body B through the paper feed path α, and after the copy image is transferred, it is discharged outside the machine.

According to the present invention, a guide member 11 is used adjacent to the paper feed roller 8 in the drawing direction X of the paper feed table 3 and the recording paper cassette 4 (this corresponds to the right direction in FIG. 8). This guide member 11 has a mounting base 11a fixed to the frame 12 of the body B with a mounting screw 18, and this mounting base 11aK
A vertical guide portion 11'b having an angle of "θ" (shown in FIG. 8) with respect to the drawing direction of the recording paper cassette 4 is integrally formed.

Since the above embodiment has the above-described structure, when the paper feed tray 8 is pulled out in a direction perpendicular to the paper feeding direction when replacing the recording paper cassette 4, the recording paper protruding from the recording paper cassette 4 will be removed. The leading end corner of the paper a comes into contact with the side surface of the vertical guide section 11b of the guide member 11, as shown in the fourth figure.

Therefore, when the paper feed table 8 is pulled further toward you, the recording paper a moves in the direction of the arrow Y, as in the virtual water mixing shown in FIG.
It comes out to the front together with the recording paper cassette 4. For this reason,
Since the recording paper a that has been protruding from the recording paper cassette 4 is pushed into the recording paper cassette 4 one after another as the paper feed tray 3 moves, the recording paper cassette 4 can be pulled out almost without any hindrance. Further, even if a plurality of recording sheets a protrude, the structure is such that they can be smoothly pushed in.

As is clear from the above description, according to the present invention, when there is recording paper protruding from the recording paper cassette, even if the paper cassette is pulled out in front of the paper feeding direction, that is, in a direction perpendicular to the paper feeding direction, the simple operation as described above is possible. By providing a recording paper guide member, the recording paper can be pulled out along with the paper feed cassette without any hindrance. A copying device can be achieved.

[Brief explanation of the drawing]

, IEI diagram is an exploded perspective view of the copying apparatus according to the present invention, No. 2
The figure is an enlarged cross-sectional view of the main parts of the copying machine, and Figure 8 is the n of Figure 2.
FIG. 4 is a horizontal sectional view taken along the line l-nl, and is an explanatory diagram of the operation of the guide member. B...Body, a...Record paper, 4...Record paper cassette, 5...Bottom plate, ? ... old member, 8... paper feed roller, α... paper feed path.

Claims (1)

[Claims] 1) In a copying machine, the paper feed roller is located at the bottom of one side of the machine and takes out the recording paper from the paper cassette, which is removably located in a part of the machine, into the paper feed path. A guide member that can engage with the leading edge corner of the recording paper is arranged at the axial end position, and when the recording paper cassette is pulled out from a part of the machine body, the guide member guides the leading edge of the recording paper that protrudes from the recording paper cassette. A copying machine characterized by being inserted into a recording paper cassette.