JPS6097145A - feeding device - Google Patents

Abstract

PURPOSE:To facilitate mounting of a cassette by forming a feeding cassette by forming a cut-out part at the top edge part of a box-shaped member for accommodating a sheet and installing a means for varying the position of a sheet separating means when the sheet is fed, onto a feeding apparatus. CONSTITUTION:A feeding cassette 1 is made of the tough material such as corrugated cardboard, etc. and has a cut-out part 3 through the perforations 2 made by a sawing machine at the top edge part of a box-shaped member 1a which serves as the package material for a copying paper 5 and has a size indicating mark 4. After the cut-out part 3 is removed, the feeding cassette 1 is mounted into a copying machine body C, and an arm 9 is pushed-up, and a driving shaft 8 turns around the center of the shaft of a sprocket 17 and rises, and paper feeding rollers 7 and 7a ride over the upper surface of the copying material 5. Then, the size mark 4 is read-out, and after a lateral transfer board 14 shifts in accordance with said size, solenoids 13 and 13a are set OFF, and separating hooks 6 and 6a lower to contact with the both corners at the top edge of the copying material 5, and paper feed is permitted.

Description

[Detailed description of the invention] The present invention relates to a feeding device using a cassette.

Hereinafter, a case where the present invention is applied to an electrophotographic copying machine will be described as an example.

Conventionally, when loading transfer materials such as transfer paper used in copying machines into a feeding cassette, a box such as a cardboard box was opened, the packaging material containing the transfer material was removed from the box, and then the packaging was removed. Remove the paper, etc., and set the transfer material in the feeding cassette (K). Therefore, it takes time and effort to set the transfer material in the feeding cassette.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a feeding device that solves the above-mentioned problems of the prior art, eliminates the trouble of loading sheets into a cassette, and can efficiently feed sheets.

First, an outline of an embodiment to which the present invention is applied will be described.

In this embodiment, a stiff material such as cardboard or resin is used as the packaging material for the transfer material, and a part of the material, that is, the part that comes into contact with the feeding roller and separation claw, is removed and the packaging material is set in the copying machine. As a result, it is possible to easily store the transfer material, and to reduce the occurrence of jams of the transfer material due to setting errors.

FIG. 1 shows a feeding cassette to which an embodiment of the present invention is applied. In the figure, reference numeral 1 denotes a feeding cassette, which has a box-like member 1a, and this box-like member 1a is made of a strong material such as cardboard or resin, and is also a packaging material for the transfer paper. 2 is a perforation used for cutting on the box-shaped member 1a, and 3 is the tip of the feeding cassette 1 to be separated from the box-shaped member 1a at the perforation 2 when the feeding cassette 1 is set in the feeding device. . Further, numeral 4 is a mark for reading the size of the feeding cassette when it is loaded into the copying machine main body C, and here it is a recessed part. Note that FIG. 2 is a perspective view showing a state in which the tip portion 3 is separated from the feeding cassette 1. In the figure 5
is a transfer material.

Now, FIG. 6 is a perspective view showing a state in which the feeding cassette 1 is loaded into the main body C of the copying machine. In this feeding device, 6 and 6a are separation claws, 7 and 7a are feeding rollers, 8 is a drive shaft that drives the feeding roller 7-7a, and 9 is a drive shaft 8.
Feed roller lifting arm located below 10/10a
Reference numeral 11 denotes a rotation support shaft that rotatably holds the rising arm 9, 11 a feeding guide, and 12 a microswitch for reading information such as the size of the transfer material. Further, 13 and 13a are solenoids for raising the separation claws 6 and 6a, and 14 is a lateral movement table that holds the rotation fulcrum of the solenoid 13 and the separation claws 6;
Reference numeral 15 denotes a guide hole through which the horizontal moving table 14 is moved by a moving mechanism (not shown) including the Stella 1 motor and a rack. Furthermore, 16 is a sprocket fixed to the feed roller shaft 8, 17 is a tin rocket connected to the feed roller drive system (not shown), 18 is a chain for transmitting power between the tin rockets 16 and 17, and 19 is a sprocket of the sprocket 17. This is a feed roller rotation arm that is rotatably fixed to a shaft and holds a feed roller shaft 8 at one end and the other end.

Next, the state in which the cassette 1 is loaded into the copying machine main body CK will be explained.

First, in FIG. 3, when the feeding cassette 1 is not loaded, the microswitch 12 is in an OFF state. At this time, upon receiving this signal, the solenoids 13 and 13a
is QN, and the separation claw 6 is raised upward. Now, in this state, cut off the tip part 6 of the feeding cassette 1 shown in FIG. 1 along the cut line 9 of the perforation 2, and
The feeding cassette 1 is put into the main body feeding device in the state shown in the figure.

As the cassette 1 advances to a predetermined loading position in the copying machine main body C, the top end of the transfer material 5 stored in the cassette 1 abuts against the lifting arm 9 and pushes the arm 9 up. When this arm 9 is pushed up, the drive shaft 8 rotates around the axis of the sprocket 17 and rises due to the arm 9), and the paper feed rollers 7, 7a easily ride on the uppermost transfer material 5. Additionally, mark 4 indicates the storage transfer material size.
The microswitch 12 reads the size of the transfer material 9, and in response to this signal, a moving mechanism such as a motor (not shown) is activated.
is driven, and after the horizontal moving table 14 moves to a position corresponding to the set transfer material size, the solenoids 15 and 13a
is turned off, and the separating claws 6 and 6a descend to come into contact with both corners of the leading edge of the transfer material 5, allowing paper feeding. Then, the transfer material is sent out sheet by sheet by a paper feed roller 7-7a which rotates in response to a signal from the main body.

The stand 21 may be provided with recesses 21a, and the protrusions 1b provided on the lower surface of the box-shaped member 1a of the cassette 10 may be fitted into the four recesses 21a. Further, the sheet includes transfer material, photosensitive paper, glass thin plate, copy paper, etc.

As described above, the present invention provides a feeding device that can easily feed sheets without a troublesome sheet loading operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a feeding cassette to which an embodiment of the present invention is applied, and FIG. 2 is a perspective view showing the feeding cassette shown in FIG. 1 before being loaded into a feeding device. FIG. 3 is a perspective view showing the feeding cassette mounted on the feeding device, and FIG. 4 is a side view showing the cassette positioned on the loading table. In the figure, 1..Fist..Feeding cassette 2.0..Perforation (cut-out instep) 6..Tip part to be cut off from the perforation of 2.4-.
...Paper feed cassette detection mark 5...Fist...Transfer material 6, 6a11...Separation claw 7, 7a, -0, Paper feed roller 12...Excellent...Micro switch 15, 13a... Urn/Solenoid 14... Lateral moving table 379-

Claims (1)

[Claims] (1) A feeding device that uses a feeding cassette that is detachable from an image forming apparatus, and includes: a box-shaped member that stores sheets; a distal end portion that is removable from the box-shaped member; and a variable means for changing the position of the separating means for separating the sheets one by one during sheet feeding according to the size of the sheet, and after removing the tip, the box-shaped member is loaded into the image forming apparatus as it is. A feeding device featuring: