JPS6040334A - Record paper containing unit - Google Patents

Abstract

PURPOSE:To facilitate the loading of sheets of record paper onto an elevating table and the accompanying operation by providing a large-size cover, a part of which is withdrawable from an obstacle when said cover is opened. CONSTITUTION:In a record paper containing unit 31 in which more than one sheet of record paper P can be contained and which can feed the sheets of record paper one at a time into a copying machine, the contained sheets of record paper are covered by a closing cover 51 which is partly rotatably installed. A partial cover 52 rotatably installed to the upper opening end side of the closing cover 51 is energized so as to be withdrawn inward when the closing cover 51 is opened. When the cosing cover is closed, this inwardly withdrawn partial cover 52 is forcedly restored by means of a restoring member 54. As a result, the loading of sheets of paper onto an elevating table and the accompanying operation can be made easier when the unit 31 is supplied with sheets of record paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording paper storage device for a copying machine, and in particular, the recording paper storage device is fixed to or detachable from the copying machine in order to enhance the paper feeding capacity of the copying machine. The present invention relates to an improvement of a recording paper storage device such as a multi-sheet feeding unit provided in a multi-sheet feeding unit.

[Prior art]

Recently, proposals have been made for adapter-type or fixed-type multi-piece boat units that can increase the copying capacity when making a large number of copies. That is, FIG. 1 shows a copying machine 2 having such an additional multi-sheet feeding unit 1. As shown in FIG. The copying machine 2 is equipped with two paper feed trays 3A and 3B, into which recording paper cassettes 4A and 4B are respectively installed, and the internal recording paper P is delivered to one sheet as necessary. After being transferred and fixed, it is discharged to the paper discharge tray 5. The multi-sheet feeding unit 1 is provided to enhance this paper feeding, and contains a larger number of recording sheets P than the cassette, and selectively carries out single-sheet recording sheets P in addition to the cassette. be done. The discharged recording paper P passes through the paper feed path 6, contacts the photoreceptor drum 7 carrying the toner image in synchronization, and after the toner image is transferred, it is separated from the photoreceptor drum 7 and transferred to the fixing device 8. The toner image is fixed and discharged onto the paper discharge tray 5. By additionally providing the multi-sheet feeding unit 1, the copying machine 2 can continuously make copies of a large number of sheets and sizes without changing the cassette.

The recording paper P in the multi-sheet feeding unit 1 is placed on a plate-shaped lifting table 11, and both sides thereof are regulated by side guide plates 12 that regulate the width direction of the paper, and the rear end of the recording paper P is is regulated by the rear end stopper 13. This is IcL,
The recording paper P, which is regulated in the width direction and the front-back direction, is carried out one by one from the top surface of the stack. As a means for conveying the recording paper, for example, the recording paper is conveyed by a known conveyance means such as a feed roller 14 and a feed bell (15K), separated into one sheet by squeezing by a double feed prevention roller 16, and then conveyed by rotating. The paper is fed to the paper feed path 6 by rollers 9 . In this way, as the recording paper P is consumed, the elevator table 11 moves upward in parallel, and is always maintained in a state where the uppermost recording paper P can be carried out.

The recording paper P used in this manner is housed in a container consisting of a bottom plate A and an upper plate IB together with a lifting means 11 on which the recording paper P is placed, feed rollers 14, etc. as shown in the figure. , and is attached to the stand of the copying machine 2 by two people while being covered with a moisture-proof cover 21.

The recording paper P is replenished by rotating the cover 21 clockwise about the hinge 21A and opening the top of the container. Since the cover 21 cannot be made sufficiently large, the cover 21 must be opened while avoiding collisions with This is done through a narrow opening, making it an extremely difficult task.

This tendency becomes more pronounced as the copying machine 2 is made more compact and the recording paper cassette and the multi-sheet feeding unit are brought closer together.As a means to avoid this, there is a method of making the cover 21 removable. It has also been proposed to remove the upper cassette, but this has not been put to practical use because it is difficult to operate and there is a risk of damage or loss. Furthermore, removing the cassette impairs the operability of the subject, which poses a practical problem.

[Purpose of the invention]

According to the present invention, when replenishing recording paper to a multi-sheet feeding unit,
The object of the present invention is to provide a sheet feeding device equipped with a large cover that widens the opening of the unit in order to facilitate its placement on a lifting platform and the associated operations.

[Structure of the invention]

The present invention is configured so that the opening for replenishing recording paper in the multi-sheet feeding unit (7) is covered by a single foldable cover, which can accommodate a plurality of recording papers and which In a recording paper storage device capable of supplying recording paper to a single-sheet copying machine, the opening/closing lid is partially pivoted to cover the stored recording paper, and the opening/closing lid is pivoted to the upper open end side of the opening/closing lid, and the above-mentioned The inner cover is attached to a part of the openable cover and urged to go inside when the openable cover is opened, and the inner cover is forced to stay inside when the openable cover is closed. This can be achieved by a recording paper storage device characterized by being provided with a member.

〔Example〕

An embodiment according to the present invention is shown in the second eEl, and a sectional view of the main part thereof is shown in FIG.

In the figure, a container is formed by a bottom plate 31A, a top plate 31B, a cover 51 according to the present invention that can be opened, and an attached inner lid 52 that is rotatably attached to a part of the container. The multi-sheet feeding unit 31 has an elevating table 41 that lifts and lowers the stacked recording sheets P by placing the recording sheets P in pressure contact with the feed roller 44, and after regulating the longitudinal direction of the recording sheets P. End Nutotsu/<43 and its guide plate 47
Further, it accommodates a pair of side guide plates 42 for regulating the middle direction and an adjustment device 42A therefor, and is mounted on a stand (not shown) of the copying machine.

The cover 51 is configured to be able to rotate clockwise about a hinge 51A provided below the unit 31 as a fulcrum, and the angle of rotation is approximately 1 after passing through the state shown by the plumb line.
The lid can be opened until the angle reaches 80°.

A pair of wall surfaces 52A are formed at both ends of the wall surface 52A.
is rotatably supported by a pair of pillars fixed to the inside of the cover 51.

Further, on the wall surface 52A of the inner lid 52, slopes 02A and 52B and a stopper 52C to be brought into contact with the back surface of the cover 51 are formed, respectively, and a stopper 52C is formed on the wall surface 52A of the inner lid 52. [Although it is biased in the counterclockwise direction, it is regulated by a roller 56 attached to a shaft on a plate 55 that protrudes from the upper plate 31B, so it cannot be pressed when the lid is closed.] As shown in FIG. 2, the upper surface sections of the cover 51 and the inner case 52 are in a straight line and cover the opening of the multi-sheet feeding unit 31 (
There is.

In order to replenish or replace the recording paper P, the cover 51
When the inner lid 52 is rotated clockwise to open the lid, the inner lid 52 also moves while the slopes 52B to 52A keep contact with the rollers, and the inner lid 52 is separated from the rollers. The stopper 52 rotates in the counterclockwise direction as shown in FIG.
C is in contact with the back surface of the cover 51; and 7. Cru.

In other words, even if Nakayu 52 rotates the cover 51 using the hinge 51A as a fulcrum, it has retreated to a position where it will not collide with the boat feeding cassette installed at the bottom of the copying machine. M520 width paper feed cassette 3
If the width is wider than 4B, the cover 51 can be opened without interfering with the paper feed cassette installed in the copying machine.

In addition, when closing the lid, rotate the cover 51 counterclockwise, and as the lid approaches the closed state, the slope 52A of the inner lid 52 comes into contact with the roller group, so if you press it with some force, the inner lid 52 rotates slightly clockwise against the torsion spring 54, and the slope 52B is locked by the rollers 56, so that the cover 51 is locked and returns to the state shown in FIG.

〔Effect of the invention〕

By configuring the present invention, a large cover is realized in which a portion of the cover can be retracted from obstacles when the cover is opened, so that a large number of recording sheets can be stored within the cover. Furthermore, even if the space for opening the lid is limited, a recording paper storage device with a wide opening and easy handling of recording paper is provided, and a combination of a copying device and a multi-sheet feeding unit is provided. Since the two can be brought close to each other, there are effects such as the ability to make the entire structure compact.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a copying machine equipped with a conventional multi-sheet feeding unit. FIG. 2 is a side sectional view of the recording/paper storage device according to the present invention. The third part is a sectional view of the main part. 31...Multi-sheet feeding unit) 31A...
...Bottom plate 31B...Top plate 34B...
・Paper feed cassette 41... Lifting platform 42...
...Side guide plate 43...Rear end stopper 44.
...Feed roller 47...Guide plate 51
...Cover 52 ...Inner lid 52A, 5
2B...1 other side &... Support Figure 000
06. Twisting, twisting 5...Plate 56...
...Koro agent Yoshimi Kuwahara

Claims (1)

[Claims] A recording paper storage device that can store a plurality of sheets of recording paper and supply the recording paper to a single sheet copying machine includes an opening/closing lid that is partially pivoted to cover the stored recording paper, and an upper part of the opening/closing lid. an inner lid that is pivoted to the open end side and is attached to a part of the opening/closing lid and biased to go inside when the opening/closing lid is opened; A recording paper storage device characterized by being provided with a regulating member for forcibly returning an inner lid that has entered.