JPH0570592B2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] Generally automatic paper feeding device (cut sheet feeder)
In order to load the paper (sheet) securely,
The side presser is received on the side of the automatic paper feeder. The side presser is movable, and is normally urged inward (toward the paper side) by a spring. When loading paper, the side presser is moved outward by pressing with a finger force that exceeds the pressing force of the side presser spring. After loading the paper, the fingers are removed and the paper is pressed by the side presser.

However, when loading paper, it is a cumbersome operation to move the side presser outward with one's fingers.

[Object] Therefore, an object of the present invention is to provide a paper loading mechanism for an automatic paper feeder that is easy to operate and eliminates the above-mentioned drawbacks.

[Structure] In order to achieve the above object, the present invention includes a sheet holding plate that is movable between a position of a sheet feeding means and a position separated from the sheet feeding means while stacking sheets; A side presser is urged toward the sheet side by an urging means to regulate the side edge of the supported sheet, and a side presser is rotated to move the sheet presser plate from a position on the side of the paper feeder to the sheet feeder. a sheet presser plate releasing means for moving the sheet presser plate to a position away from the paper means; and a sheet presser plate releasing means for moving the side presser plate against the urging force of the urging means by rotational operation to release the restriction on the side edge of the sheet. 1 for rotating both the side presser release means, the sheet presser plate release means, and the side presser release means;
and two levers, in response to rotation of the lever in one direction, the sheet presser plate release means moves the sheet presser plate to a position away from the paper feed means, and the side presser release means moves the sheet presser plate to the side The restrictions on the presser foot will be lifted.

[Examples] Examples of the present invention will be described below in detail based on the drawings.

FIG. 1 is a schematic configuration diagram of a paper loading mechanism of an automatic paper feeder according to an embodiment of the present invention, FIG. 2 is a side sectional view of the automatic paper feeder, and FIG. 3 is a front view of the automatic paper feeder. be. As shown in FIGS. 1 and 3, the automatic paper feeder 2 has a first fixing member 4 and a second fixing member 6 fixed to the side of its main body so as to be aligned in a straight line. The shaft support portion 8 of the second fixing member 6 has its shaft 10
The rotating member 12 is pivotally supported by. FIG. 4 shows the shape of the rotating member 12. The rotating member 12 is provided with a hook 14 on the side of the first fixing member 4 as side press release means. A side presser 16 is installed between the fixing member 4 and the fixing member 4.
is located. A spring 18 as a biasing means, one end of which is fixed to a part of the main body of the automatic paper feeder 2, is disposed in a compressed state on the side presser 16. Side presser foot 16
is pressed against the seat side. Further, the other end of the rotating member 12 is engaged with the cam surface 22 of the cam 20 so that the rotating member 12 is rotated against the urging force of the spring 18 by the rotating operation of the cam 20. ing.

This rotational operation of the cam 20 is carried out by a lever 24 connected to the cam 20, thereby imparting a rotational operation to both the rotation member 12 and the cam 20.

In FIG. 1, 28 is a hook provided on the first fixing member 4, and in FIG. 2, 30 is a back plate;
32 is a sheet pressing plate, 34 is a stack of paper, 36 is a paper feed roller as a paper feeding means, 38 is a paper ejection roller,
40 is a separation claw, 42 is a printer, 44 is a paper feed hole,
46 is a paper discharge hole, 48 is a paper feed roller, 50 is a pinch roller, and 52 is a paper sheet.

Further, in FIG. 3, 54 is a paper guide member, and 56 is a paper guide member.
58 is a paper feed roller shaft, 58 is a side plate, and 60 is a stack of sheets.

Next, the effect will be explained. When the lever 24 is in the position shown in FIG.
If no paper is loaded, the guide presser 16 is pressed by the first fixing member 4.
and protrudes slightly inward from the second fixing member 6.

When loading paper, when the lever 24 is tilted forward approximately 90 degrees as shown in FIG. As shown in Fig. 7, it rotates a little in the A direction about the shaft 10, then stops. The side presser 16, which is engaged with the hook 14 portion of the rotating member 12, also moves in the B direction by overcoming the biasing force from the spring 18 due to the movement of the rotating member 12. Therefore, the side presser 16 no longer protrudes inward from the first and second fixing members 4, 6, and the side presser does not become an obstacle when loading paper, making it possible to easily load paper. When the paper loading is completed, by tilting the lever 24 back to its original position (that is, the position shown in FIG. 1), the side presser 16 is biased by the spring 18 and the paper stack 60 is
is surely pressed by the side presser 16 (third
figure).

FIG. 8 shows how the sheet presser plate 32 is connected to the paper feed roller 36
This figure shows an example of a sheet presser plate releasing means for moving the sheet presser plate between the side position and a position spaced apart from the paper feed roller 36.

The rear end of the sheet presser plate 32 protrudes toward the back side of the back plate 30, and a cam 1 interlocked with the release lever 24 of the side presser 16 is attached to this protrusion 32a.
02 is in contact. Then, by rotating the lever 24, the sheet pressing plate 32 can be separated from the paper feed roller 36, and the paper bundle 34 can be loaded between them. Thereby, by one operation of the lever 24, the operation of separating the sheet presser plate 32 from the paper feed roller 36 and the operation of releasing the side presser 16 can be performed simultaneously.

Here, to explain the action of this lever 24 in detail, by tilting the lever 24 forward, the sheet press plate 32 moves in the direction C in FIG. A gap is created in between, and the side presser 16 also retreats in the direction B, as shown in FIG. In this state, when the lever 24 is returned to its original position after loading the paper stack 34 (FIG. 2), the paper stack 34 is transferred to the paper feed roller 3.
6, the stack of sheets 34 is also pressed from the side by the side presser 16, thereby ensuring reliable loading of sheets.

[Effects] The present invention, as described in detail, can separate the sheet presser plate from the paper feeding means and release the restriction on the side presser by operating a single lever, thereby facilitating manual sheet loading. The work can be made extremely easy and the workability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a paper loading mechanism of an automatic paper feeder according to an embodiment of the present invention, FIG. 2 is a side sectional view of the automatic paper feeder, and FIG. 3 is a front view of the automatic paper feeder. Figure 4 is a front view of the rotating member, Figures 5 and 6.
The figure is a perspective view of the cam, FIG. 7 is a view corresponding to FIG. 1 when the lever is pushed down, and FIG. 8 is an application example of the present invention, showing the main parts of the automatic paper feeder seen from behind the back plate. FIG. In the figure, 2... Automatic paper feeder, 12... Rotating member (side press release means), 16... Side presser, 18... Spring (biasing means), 20... Cam,
24... Lever, 102... Cam (sheet presser plate release means).

Claims (1)

[Scope of Claims] 1. A sheet holding plate that is movable between a position on the side of a sheet feeding means and a position away from the sheet feeding means while stacking sheets; and a sheet holding plate supported by the sheet holding plate. a side presser that is urged toward the sheet side by a biasing means in order to regulate the side edges; and a rotation operation moves the sheet presser plate from a position on the sheet feeding means side to a position away from the sheet feeding means. a sheet presser release means for moving the sheet presser; a side presser release means for moving the side presser against the urging force of the urging means through a rotational operation to release the restriction on the side edge of the sheet; one lever for rotating both the sheet presser release means and the side presser release means, and the sheet presser is released by the sheet presser release means in response to rotation of the lever in one direction. A paper loading device for an automatic paper feeder, characterized in that the plate is moved to a position separated from the paper feeding means, and the regulation of the side presser is released by the side presser releasing means. 2. The sheet press plate releasing means is a first cam, and the sheet press plate is rotated to move the sheet press plate away from the sheet feeding means, and the side press plate release means is a second cam, which rotates. 2. A paper loading mechanism for an automatic paper feeder according to claim 1, wherein said side presser is released by moving said side presser, and said first and second cams are disposed on a shaft that is rotated by a lever. 3. A patent claim in which the lever is located along the main body of the automatic paper feeder when the lever is not rotating in one direction for separating the sheet presser plate and releasing the side presser. range 1
Paper loading mechanism of the automatic paper feeder described in Section 1.