JPS597093Y2 - Automatic paper feeder for printing equipment - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a print head movable in the axial direction of the platen on the front side of the platen, and a paper output stacker and a paper feed stacker are arranged side by side in this order from above behind the platen. This invention relates to an automatic paper feeder for devices.

In this type of automatic paper feeder, a guide body is arranged close to the platen, a paper discharge stacker and a paper feed stacker are provided extending from the guide body, and a paper discharge stacker is provided above the guide body. Although it is not yet known to the public that the guide body has a paper ejection path connected to the paper feed path, a paper feed path connected to the paper feed stacker below, and a manual feed slit in the guide body, the inventors of the present invention et al. Already proposed.

Furthermore, above the guide body, an opening/closing lid that covers the guide body and the platen is pivotally attached to the machine frame of the automatic paper feeder, and when the opening/closing lid is closed, the above-mentioned The paper ejection path is well-structured.

When performing manual printing using the automatic paper feeder, the opening/closing lid is opened, and a manual paper sheet is inserted through the manual paper feed slit of the guide body and loaded onto the platen.

In this case, when the paper after printing reaches the paper stacker through the paper ejection path, it is troublesome to take it out, and it is desirable to eject it onto the opening/closing lid. There is a possibility that a gap will be formed between the pair of rollers and the paper will not be ejected onto the opening/closing lid in a convenient manner.

The present invention proposes an automatic paper feeder for printing devices that does not have the above-mentioned disadvantages.

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 ejection rollers 11 and 12 that support the paper fed above the guide body 8 and eject it onto the paper ejection stacker 7.

13 is a guide plate, and 29 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 each l end of an opening/closing lid 17 and a guide body 8 are pivotally attached to this. It can be flipped upwards around it.

When the guide body 8 and the opening/closing lid 17 are closed as shown, they are held in the operating position by appropriate stoppers (not shown). The paper feed path P and the paper ejection path Q are set at a certain position.

When the opening/closing lid ■7 is flipped up around the spindle 16, the paper ejection path is opened, and when the guide body 8 is flipped up, the paper feed path is opened, so that it is easy to open even if a jam occurs in either paper path. can be processed.

A hanging piece 14 is rotatably attached to the lower side of the opening/closing lid 17 by a pivot 19.

In the state shown in FIG. 1 with the opening/closing lid 17 closed, the hanging piece 14
is supported by the guide body 8 at a position that does not interfere with the path of the ejected paper by the leg portions 20 on both side edges thereof, and is in a state close to the opening/closing lid 17. In this state, the hanging piece 1
4 does not obstruct the progress of the paper passing through the paper discharge path Q.

The paper discharge stacker 7 is rotatably attached to a support shaft 18 attached to the machine frame 15, so that it can be flipped up counterclockwise around the support shaft 18 from the operating position shown in the figure. It has become.

Thus, when the paper discharge stacker 7 is flipped up, the upper part of the paper feed stacker 6 is opened, making it extremely easy to store the stack of sheets in the paper feed stacker.

Therefore, the distance between the paper feed stacker 6 and the paper discharge stacker 7 when the paper discharge stacker 7 is in the operating position shown in the figure is as follows.
It can be made relatively narrow.

The guide body 8 is provided with a slit 28 passing through it and extending in the width direction.

By flipping up the opening/closing lid 17 around the support shaft 16 as described above, a desired sheet of paper can be manually fed through the slit 28.

For this reason, the width of the slit 28 is designed to correspond to the width of the maximum sheet that needs to be manually fed.

The automatic paper feeding device is provided with a drive motor for rotating the paper feed roller 10, but 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 opening/closing lid without removing the automatic paper feeder from the main body of the printing device.

When the opening/closing lid 17 is flipped up around the support shaft 16 and opened as shown by the arrow R in FIG. 1, the opening/closing lid 17 assumes the open position shown in FIG. 2.

At this time, the pivot 19 also rotates around the support shaft 16, so
The hanging piece 14 is in the position shown in FIG. 2, interrupts the paper discharge path Q midway, and bridges it onto the open/close lid 17 that has been flipped up.

That is, the paper 21 coming out of the platen 1 reaches the opening/closing lid 17 which is flipped up from the middle of the paper discharge path 21 via the hanging piece 14, and can be picked up by hand through this guide.

As mentioned above, the automatic paper feeder according to the present invention discharges the printed paper to the paper ejection stacker during automatic printing with the opening/closing lid closed, and when performing manual feed printing with the opening/closing lid open, the printed paper is thrown up onto the opening/closing lid. It can be easily taken out by hand, eliminating the inconvenience of manual printing.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an automatic paper feeder to which the present invention is applied, with the opening/closing lid in a closed position, and FIG. 2 is a view showing the opening/closing lid in an open state. 1...Platen, 3...Print head,
5... Rolling paper feeder, 6... Paper feed stacker, 7... Paper discharge stacker, 8...
Guide body, 14... Opening/closing lid, 28...
Manual feed slit, P...Paper feed path, Q...
...Paper output path.

Claims (1)

[Scope of utility model registration request] In an automatic paper feeder for a printing device, a print head that moves in the axial direction of the platen is provided on the front side of the platen, and a paper output stacker and a paper feed stacker are arranged side by side in this order from above behind the platen. a guide body disposed close to the platen and provided with a manual feed slit, with a paper discharge path connected to the paper stacker facing upward and a paper feed path connected to the paper feed stacker facing downward; In this state, there is provided an opening/closing lid rotatably connected to the guide body to form a paper ejection path, and a hanging piece having one end pivoted to the opening/closing lid. When the door is closed, it takes a position that does not obstruct the paper ejection path, and when the opening/closing lid is open, it takes a position that guides the paper on the paper ejection path onto the open opening/closing lid. automatic paper feeder.