JPS597316Y2 - automatic paper feeder - Google Patents

Description

[Detailed description of the invention] This invention arranges a paper discharge stacker and a paper feed stacker side by side in this order from above, and automatically feeds the stacked paper on the paper feed stacker and passes it through copying, printing, and other processing devices. The present invention relates to an automatic paper feeder that discharges paper to a paper discharge stacker.

In this type of conventional automatic paper feeder, the paper feed stacker and the paper output stacker are arranged side by side on the same side, so paper feeding and ejection operations can be performed in one place, and confirmation can also be made in one place.
It is convenient because it can be done in one place, and it also has the advantage of being easy to attach various devices.

However, it is difficult to feed or remove paper from the paper feed stacker located on the lower side, and if sufficient space is provided between the upper and lower stackers to alleviate this difficulty, the device will become larger. .

The present invention aims to eliminate the above-mentioned drawbacks in conventional automatic paper feeders.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In Figure 1, pinch roll 2 is placed on platen 1 of the printing device.
, a print head 3 and a paper bail 4 are attached.

An automatic paper feeder according to the present invention, generally designated by the symbol 5, is attached to the paper feed section of the printing device, and this automatic paper feeder 5 includes a paper feed stacker 6, a paper discharge stacker 7, and a guide body 8. ing.

The paper feed stacker 6 is provided with a push-up bottom plate 9 that supports the front part of the paper stack thereon, and a paper feed roller 10 that contacts the topmost sheet of the paper stack and feeds it to the platen 1, and discharges the paper. The stacker 7 is provided with a pair of paper discharge rollers 11 and 12 which pinch the paper fed above the guide body 8 and discharge it onto the paper discharge stacker 7.

13 is a guide plate, 14a and 14b are paper leading edge detection devices, and 19 is a pair of guide side plates.

A support shaft 16 is fixed to the machine frame 15 of the automatic paper feeder 5, and one end of each of a cover plate 17 and a guide body 8 are pivotally attached to this. Therefore, both the cover plate and the guide body are attached to the support shaft 16. It can be flipped upwards around it.

When the guide body 8 and the lid body 17 are closed as shown, they are held in the operating position by an appropriate stopper (not shown). The paper feed path P and the paper ejection path Q are set in the position shown in FIG.

When the cover plate 17 is flipped up around the support shaft 16, the paper ejection path is opened, and when the guide body 8 is also flipped up, the paper feed path is opened, so that even if a paper jam occurs in either paper path, it can be easily removed. can be processed.

The guide body 8 is provided with a slit 20 passing through it and extending in the width direction.

By flipping up the lid 17 around the support shaft 16 as described above, a desired sheet of paper can be manually fed through the slit 20.

For this reason, the width of the slit 20 is shaped to correspond to the width of the maximum sheet that needs to be manually fed.

Although not shown, the automatic paper feeder is provided with a drive motor that rotates the paper feed roller 10, and when manually feeding the paper, this drive motor is stopped to interrupt the automatic paper feeding operation.

In this way, manual paper can be loaded onto the platen by simply flipping up the cover plate without removing the automatic paper feeder from the main body of the printing device.

The paper discharge stacker 7 can have a box shape or other various shapes, but in this embodiment, the wire rod is bent into the shape shown in FIG. 2 so that the center part is higher than the wire rods on both sides. It has increased rigidity in the direction of paper travel.

Attach the upright pieces 21 shown in FIG.
1a, and the shaft support 7a of the paper stacker 7 is rotatably inserted into the hole of the upright piece 21 thus neatly fixed.

The paper stacker 7 can be easily attached to and removed from the upright piece 21 because the paper stacker itself can be bent so that both shaft supports 7a of the stray paper stacker 7 come close to each other. .

Therefore, the paper discharge stacker 7 is swingable in the direction shown by the arrow R in FIG. 1, and when it is flipped up as shown by the broken line in FIG. 1, the upper part of the paper feed stacker on the lower side is released. .

As mentioned above, in the automatic paper feeder of the present invention, since the paper output stacker is located on the upper side, it is easy to take out the paper output, which needs to be done frequently, and it is easy to remove the paper from the paper feed stacker on the lower side. This can be done extremely easily by flipping up the paper stacker as described above.

Therefore, the paper discharge stacker and the paper feed stacker do not need to take up a large space between them when they are in the operating position, and can be placed close to each other, making it possible to reduce the space required for the entire device. .

Further, the paper discharge stacker can be made not only rotatable around the illustrated side edge, but also rotatable around other side edges, for example, one of the side edges parallel to the paper feeding direction.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the automatic paper feeder according to the present invention, FIG. 2 is a plan view of the paper stacker, and FIG. 3 is a front view of the upright piece. 5... Automatic paper feeder, 6... Paper feed stacker, 7... Paper discharge stacker 7a...
・・Axis support, 21 ・・・erecting piece.

Claims (1)

[Scope of utility model registration request] A paper output stacker and a paper feed stacker are placed side by side in this order from above, and the stacked paper on the paper feed stacker is automatically fed and copied.
In an automatic paper feeder that outputs paper to a discharge stacker after passing through printing and other processing devices, one side edge of the discharge stacker is rotatably attached to the machine frame, and the upper part of the paper feed stacker is An automatic paper feeder characterized by being able to be opened.