JPH03211124A - automatic paper feeder - Google Patents

Abstract

PURPOSE:To simplify connection between a printing device and an automatic paper feeder by providing the automatic paper feeder with fitting members that can be inserted along the sheet insertion path of the printing device as well as connected to the sheet feeding roller shaft lower part and frame part of the printing device. CONSTITUTION:An automatic paper feeder is provided with a stacker for storing sheets pulled up by a paper discharge roller and a paper discharge guide and fitting members 9 for fitting the sheets at a printing device. Each fitting member 9 can be inserted along the sheet inserting path of the printing device and is provided with a flat part 9b for placing the most of the self-weight of the automatic paper feeder on the frame 17 of the printing device and a positioning groove 9b to be fitted at the protruding part 17c of the printing device frame 17.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic paper feeder attached to a printing device such as a printer.

BACKGROUND OF THE INVENTION Conventionally, this type of automatic paper feeder has been constructed as shown in FIGS. 3 and 4. In the figure, 1 is a left side plate, 2 is a right side plate, 3 is a hopper, 4 is a paper feed roller, and 5 is a separation member. Paper before printing is stored in the hopper 3, and is moved by the paper feed roller 4 and separation member 5. The sheets are separated one by one and sent to a printing device. 6 is a paper ejection roller, 7 is a paper ejection guide,
Reference numeral 8 denotes a stacker, and the paper on which printing has been completed by the printing device is pulled up by a paper discharge roller 6 and a paper discharge guide 7 and stored in the stacker 8 .

Reference numeral 9 denotes a mounting member, which is integrated with the left and right side plates 1 and 2, and is coupled to the paper feed roller shaft 11 of the printing device 10. Note that 12 represents the rubber portion of the paper feed roller.

Problems to be Solved by the Invention In such a conventional configuration, as shown in FIG. 5, a hole 13 must be provided above the printing device 10, which is the main body, at the portion where the mounting member 9 is attached. In terms of appearance,
This is not preferable and also requires processing to provide holes 13 in each printing device, which has the disadvantage of increasing costs.

In addition, to prevent the automatic paper feeder from falling backwards,
As shown in FIG. 6, it is necessary to provide a support portion 14 on the outer case at the rear of the printing device 10, and if the support is not provided on the outer case, it is necessary to provide a separate member. In automatic paper feeders, rubber 15 or the like is required to ensure stable mounting on this support portion 14.

The present invention solves these problems by improving the mounting member so that the automatic paper feeder can be attached to the printing device without any special processing, thereby making the appearance beautiful, and also improving the mounting member so that the automatic paper feeder can be attached to the printing device without any special processing. The purpose of this invention is to allow the mounting member of the automatic paper feeder to be mounted on the outer case, and to enable the installation of the automatic paper feeder without making any special modifications to the exterior case.

Means for Solving the Problems In order to solve this problem, the present invention is capable of being inserted into an automatic paper feeder along a paper insertion path of a printing device, and which is capable of being inserted into a lower part of the paper feed roller shaft and a frame portion of the printing device. The structure includes a portion that connects with the .

Function: This configuration allows the printing device and automatic paper feeder to be combined without any special processing or addition of members to the printing device and the exterior case.

Embodiment FIG. 1 is an external perspective view of an automatic paper feeder according to an embodiment of the present invention, and FIG. 2 is a sectional view including a printing device, which is the main body of the same embodiment. In FIGS. 1 and 2, the same parts as those in FIGS. 3 and 4 are designated by the same numbers, and their explanations will be omitted.

Reference numeral 9c is the tip of the attachment member 9 of the automatic paper feeder, and because it has a thin shape, it can be inserted from the paper insertion slot of the printing device 10. Specifically, the tip 9a of this attachment member has a shape that reaches the lower part of the paper feed roller shaft 11 without interfering with the platen frame 16 and frame 17 that support the platen rubber 16a, which is the printing surface of the printing device 10, which is the main body. becomes.

9a is a flat part of a mounting member for preventing the automatic paper feeder from falling backward; and 9a is a flat part of a mounting member for preventing the automatic paper feeder from falling backward;
rides on the flat part 17b of the frame 17. As a result, most of the weight of the automatic paper feeder is supported by this part.

Reference numeral 9a is a groove for positioning the front and rear of the automatic paper feeder, into which a projection 17c of the frame 17 of the corresponding printing device 10 is inserted.

This restricts the movement of the automatic paper feeder back and forth. Conversely, the groove 9c for positioning the automatic paper feeder mounting member 9 may be a protrusion, and in this case, the groove may be provided in the frame 17 of the printing device.

Effects of the Invention As described above, according to the present invention, the paper can be inserted into the automatic paper feeder along the paper insertion path of the main body of the printing device, and is connected to the lower part of the paper feed roller shaft and the frame portion of the printing device. By providing a mounting member that allows
The printing device and automatic paper feeder can be combined without any special processing or addition of parts to the printing device or outer case.
It has great industrial value.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an automatic paper feeder according to an embodiment of the present invention;
Figure 2 is a cross-sectional view of the main unit including the printing device, Figure 3 is a perspective view of a conventional automatic paper feeder, Figure 4 is a cross-sectional view of the main unit including the printing device, and Figure 5 is The same plan view and FIG. 6 are the same cross-sectional views including the conventional exterior case. 3...Popper, 4...Paper feed roller,
5... Separation member, 6... Paper ejection roller,
7...Sheet discharge guide, 8...Stacker, 9...attachment member, 9a...tip of attachment member, 9b...attachment member flat area,
9C... Groove for positioning the mounting member, 10.
...Printing device, 11...Paper feed roller shaft, 17...Printing device frame, 17b...
...Flat part of the frame of the printing device, 17C...
・Protrusions on the frame of the printing device. QQ

Claims (1)

[Claims] A hopper that stores paper before printing, a paper feed roller and separation member that separates the stored paper one by one and sends the separated paper to the printing device, and a paper discharge roller that pulls up the paper that is ejected from the printing device. A paper ejection guide, a stacker for storing paper pulled up by the paper ejection roller and the paper ejection guide, and an attachment member to be attached to a printing device, the attachment member being inserted along a paper insertion path of the printing device. The tip part connects to the lower part of the paper feed roller shaft of the printing device, the flat part that places most of the weight of the automatic paper feeder on the frame of the printing device, and the positioning part that fits into the frame of the printing device. An automatic paper feeder comprising: