JPS63218463A - Recording sheet storage tray - Google Patents

Abstract

PURPOSE:To miniaturize a recording device by providing a pair of discharge rollers, first and second guide members, a grip roller disposed in a storage space and a pressing plate, disposed in the storage space, for gripping the leading end of a recording sheet fed into below the storage space. CONSTITUTION:During a recording sheet 7 discharged from an image forming section is stored in a recording sheet storage tray, the recording sheet on which an image has been formed, and which is paid out from a pair of discharge rollers 28, 29 in a discharge section abuts at its leading end against a first guide member 14 (outer tray), and is led downward so that it is fed into a recording sheet storage space 16. The leading end of the recording sheet 7 having entered into the storage space 16 is captured by a gripping roll 33, and after being gripped by a gripping section constituted by the outer surface of a pressing plate 30 and a rib 18 on a first guide member 14, it abuts against the bottom part 35 of the tray so that its advance is stopped. If the image recording is still continued, the recording sheet 7 is discharged in a loop-like shape from the device body due to the rotation of the pair of discharge rollers 28, 29. The storage tray 14 does not project from the device body.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording sheet storage tray, and more specifically, the present invention relates to a recording sheet storage tray, which is installed as a paper discharge section of a recording device such as a facsimile or a copying machine, and is used to form images that are discharged from an image forming section. This invention relates to a recording sheet storage tray that stores completed recording sheets.

<Prior Art> A recording sheet storage tray for storing recording sheets on which images have been formed, which is installed in a facsimile machine, a copying machine, etc., is generally provided in a manner that projects from the main body of the apparatus. FIG. 4 shows an example of a facsimile machine equipped with such a recording sheet storage tray.

In the figure, reference numeral 1 denotes a main body of the facsimile machine, and a reading section 4 is configured to convert information on a document 3 sent on a document table 2 into an electrical signal by a photoelectric conversion element 4c such as a CCD via mirrors 4a and 4b. and an information receiving and recording system having a recording head 8 that records the received information on a recording sheet 7 fed out from a recording paper roll 5 by a platen roller 6. .

In the figure, a document storage tray 9 is provided on the left side of the facsimile device main body 1 to store the document 3 sent out from the document table 2, and a document storage tray 9 is provided on the right side of the facsimile device main body 1.
A recording sheet 7, on which an image is recorded by the recording head 8 and cut into a predetermined length by the cutter 10, is stored in the recording sheet. Reference numeral 12 is a power supply section including a power supply device and the like.

<Problems to be Solved by the Invention> There is a strong demand for miniaturization and weight reduction in recording devices such as facsimile machines. are protruding from both sides of the facsimile machine body 1, so even if the machine body 1 is made smaller, the actual installation space cannot be reduced much due to these protruding trays. together on one side of the
It is also possible to omit the space for one tray.

However, if the trays are concentrated on one side of the device, the drive systems for the information reading/transmission system and the information reception/recording system will also be concentrated, impeding space efficiency inside the device, complicating the drive system, and reducing reliability. This may lead to a decrease in performance, and may also become a cost amplification factor.

Furthermore, in the conventional recording apparatus described above, the recording sheets on which images have been formed are discharged from the apparatus with the recording surface facing upward and are stacked one after another.

Therefore, when creating records of multiple pages of originals, the recording sheets with images formed on them that are ejected from the device are stacked one after the other, with the first page facing down and the second and subsequent pages on top of each other. and in the opposite order.

Therefore, after the recording operation is completed, it is necessary to rearrange the recording sheets on which images have been formed starting from page 1, a so-called page alignment operation, which is a very time-consuming operation.

Furthermore, sheets wound into rolls, such as recording sheets used in facsimile machines, have strong curling patterns, and have the disadvantage that it is difficult to store them in an orderly manner on a conventional linear tray surface. Recently, in line with the miniaturization of the equipment itself, there has been a trend to reduce the outer diameter of the roll as much as possible without changing the length of the sheet, and one way to do this is to reduce the diameter of the core. . As a result, curling becomes more noticeable, and it is desired to develop a method for storing recording sheets after image formation to deal with this.

<Means for solving the problems> Therefore, in order to solve these problems, the applicant has proposed the third method.
He invented and proposed a recording sheet storage tray as shown in the figure (Japanese Patent Application No. 58-134175).

In the figure, the recording sheet storage tray 13 is provided near the lower side of the recording sheet discharge port of the facsimile machine 1, and the recording sheet 7 on which an image has been formed comes into contact with the recording sheet storage tray 13, which guides it downward. an outer tray 14 as a guide member;
An inner tray 15 as a second guide member for forming a recording sheet storage space 16 facing the outer tray 14
It is made up of.

The lower end of the outer tray 14 is connected to the lower end of the inner tray 15 by a pin 17, and the outer tray 14 is rotatably supported around the bin 17.

The outer tray 14 is locked to the apparatus main body 1 by a click mechanism (not shown), and is normally held in a closed position.

The outer tray 14 is provided with a plurality of lips 18 and is configured to reduce contact resistance with the leading edge of the recording sheet 7 and smoothly guide it into the storage space 16 of the recording sheet storage tray 13.

Further, the outer tray 14 and the inner tray 15 form a V-shaped gripping portion 19 for gripping the leading end of the recording sheet 7.

Furthermore, when the outer tray 14 is closed, the outer tray 1
An opening 20 is provided at the upper end of the recording sheet 4 so that when the long recording sheet 7 is stored, the rear end of the recording sheet 7 can be reversed in a loop shape and discharged outward.

The present invention is a further development of the above-described invention, and its means includes a first guide member that guides the leading edge of the recording sheet on which an image is recorded by the recording section downward, and a guide member that faces the first guide member. a second guide member that forms a recording sheet storage space; an opening portion that allows the rear end of the recording sheet to be reversed at the upper end of the first guide member; and a recording sheet ejecting portion side of the recording device; A discharge roller pair consisting of a driven discharge roller and a pinch roller provided opposite to the discharge roller, a rotating grip roller provided in the storage space, and a grip roller provided in the storage space and sent downward. It is characterized by being equipped with a pressing plate that grips the leading edge of the recording sheet.

Function> When a recording sheet discharged from an image forming section of a recording device is stored in a recording sheet storage tray, the recording sheet on which an image has been formed is fed out from a pair of discharge rollers of the discharge section, so that the leading end of the recording sheet is connected to the first guide member. The recording sheet comes into contact with the recording sheet, is guided downward, and is fed into the recording sheet storage space.

The leading edge of the recording sheet that has entered the sheet storage space is captured by the grip rollers and sent downward, and after being gripped by the gripping section, it comes into contact with the bottom of the tray and its forward movement is stopped.

When the image recording continues for m, the recording sheet is still ejected, and the recording sheet is ejected from the main body of the apparatus in a loop by the rotation of the ejecting roller pair.

When image recording is completed and the recording sheet is cut by a cutter, the rear end of the recording sheet hangs down to the outside of the apparatus main body due to its own weight. At this time, since the leading end of the recording sheet is held by the gripping section, the recording sheet will not fall out of the main body of the apparatus.

<Example> An embodiment of the present invention will be described below with reference to the drawings.

In the drawings, the same parts as in the conventional example will be described with the same numbers.

FIGS. 1 and 2 are explanatory diagrams of the case where the present invention is applied to a facsimile machine.

The recording sheet 7 fed out from the recording sheet roll 5 is
It is introduced into a recording section constituted by a platen roller 6 and a recording head 8. The recording sheet 7 on which an image has been formed in the recording section is guided to a cutter 10.

The cutter 10 includes a biasing blade 21 and a rotary blade 22.

The biasing blade 21 is biased in the direction of the rotary blade 22 by a biasing spring 23 . The rotary blade 22 has a predetermined inclination with respect to the blade surface of the biasing blade 21 and is rotatably provided in the device main body 1 about a shaft 24 as a fulcrum. Further, the rotary blade 22 is driven by a drive device (not shown) in synchronization with the recording operation of the recording section.

A blade cover 25 is provided on the side of the rotary blade 22 through which the recording sheet 7 passes. The blade cover 25 is provided so that the rotary blade 22 is inclined at a predetermined angle with respect to the biasing blade 21, so that, for example, a human hand cannot enter into the gap formed by the blade surfaces of both blades. It covers that gap.

Further, a guide cover 26 is attached to the blade cover 25 by means such as spot welding. The guide cover 26 is provided over the entire length of the blade cover 25, and is open in the front and rear directions with respect to the passing direction of the recording sheet 7. Further, the recording section side of the guide cover 26 is bent so that the recording sheet 7 can be easily introduced.

The recording substrate 27 is configured to guide the leading edge of the recording sheet 7 toward a discharge roller 28 forming a pair of discharge rollers and a pinch roller 29 which is in pressure contact with and follows the discharge roller 28 .

The discharge roller 28 is driven at the same circumferential speed as the platen roller 6 by a drive device (not shown).

Reference numeral 14 designates an outer tray as a first guide member, which is provided with a plurality of ribs 18. Furthermore, the outer tray 14
storage space 1 with inner tray 15 as a guide member.
6 is formed.

In the storage space 16, a press plate 30 for gripping the leading edge of the recording sheet 7 is rotatably supported on a shaft 31 provided on the inner tray 15 side, and a press spring 32 moves the press plate 30 to the outer tray 14.
The recording sheet 7 is biased toward the side so that the recording sheet 7 can be gripped by the surface of the pressing plate 30 and the ribs 18.

In order to reduce the resistance when the leading edge of the recording sheet 7 enters, the surface of the pressing plate 30 is coated with a resin or the like having a low coefficient of friction.

Further, a grip roller 33 is provided in the storage space 16, and the grip roller 33 rotates about a shaft 31 by receiving the driving force of the discharge roller 28 through a grip belt 34.

The surface of the grip roller 33 is knurled so that it can reliably grip the surface of the recording sheet 7. The grip rollers 33 are configured to have a gap between them and the ribs 18.

35 is the bottom of the storage space 16.

Next, the operation of the recording apparatus configured as above will be explained.

The recording sheet roll 5 wound into a roll is rewound from its tip and supplied between a platen roller 6 and a recording head 8. An image is formed on the surface of the recording sheet 7 by the recording head 8, and the recording sheet 7 is transported as the platen roller 6 rotates. The leading edge of the recording sheet passes between the biasing blade 21 and the rotary blade 22 that constitute the cutter 10, passes between the blade cover 25 and the guide cover 26, and comes into contact with the recording substrate 27. The leading end of the recording sheet is guided by the recording substrate 27 to a pair of discharge rollers, and is then pinched between a discharge roller 28 and a pinch roller 29 and discharged.

The leading edge of the recording sheet 7 discharged from the pair of discharge rollers 28 and 29 enters the lower part of the storage space 16. Thereafter, the leading edge of the recording sheet 7 is gripped by the pressing plate 30 and the rib 18. If the number of recording sheets 7 to be gripped is small, the leading edge of the recording sheet 7 is gripped by the pressing plate 30, but if the number of loaded sheets increases, the grip roller 33 There is no gap between the grip rollers 33 and the ribs 18, and the recording sheet 7 is held by the grip rollers 33 and the ribs 18.

When the leading edge of the recording sheet 7 comes into contact with the bottom portion 35, the recording sheet 7 stops advancing.

When the leading edge of the recording sheet 7 comes into contact with the bottom 35 and stops entering the storage space 16, if the recording section continues to form an image on the recording sheet 7, the recording sheet 7 is still in contact with the ejection roller. It continues to be discharged from 28.29.

In such a case, the recording sheet 7 is discharged in a loop to the outside of the apparatus main body 1 through an opening 20 formed at the upper end of the outer tray 14.

After the image formation is completed and the recording sheet 7 is cut by the cutter 10, the pair of discharge rollers continues to rotate and the rear end of the recording sheet 7 is discharged from the pair of discharge rollers 28 and 29. The recording sheet 7 is ejected in a loop due to its own weight.
The recording sheets 7 hang down to the outside of the outer tray 14 while their leading ends are held by the pressing plate, and subsequent recording sheets 7 similarly hang down to the outside of the outer tray 14 to be stacked in the storage space 16.

Furthermore, 36 is a slip-off prevention material such as a rubber piece provided on the upper part of the outer tray 14, and when the recording sheets 7 are stacked in the storage space 16, the first recording sheet 7 slides up and falls into the recording sheet storage tray. Prevents it from falling outside.

The outer tray 14 is locked to the main body of the apparatus by a locking mechanism 37, and this locking mechanism 37 locks when the recording sheets 7 loaded in the storage space 16 exceed a certain amount, that is, when the grip rollers 33 and the ribs 18 The recording sheet 7 enters between the two and is configured to be released by the repulsive force generated when this gap disappears.

38 is an upper case, and a recording head 8. Recording board 27
and a pinch roller 29 are provided. Upper case 3
By opening 8, the platen roller 6° cutter 10
Since the discharge roller 28 is exposed, it is constructed to be convenient for replacing the recording sheet roll 5.

<Effects of the Invention> The recording sheet storage tray of the present invention described in detail above does not protrude from the main body of the apparatus unlike conventional recording apparatuses, and therefore the entire apparatus can be made smaller and requires less installation space (
It has the following effect.

Furthermore, in the recording sheet storage tray of the present invention, the recording sheet on which the image has been formed is ejected with the recording surface facing up,
During subsequent stacking, the second and subsequent sheets are stacked after the first sheet, so the recording sheets taken out from the recording sheet storage tray are in the order in which they were recorded, and the pages are Another advantage is that post-work such as alignment is not required.

Furthermore, by providing a pressure plate and a grip roller inside the recording sheet storage tray, it is possible to prevent the recording sheets from slipping out of the recording sheet storage tray regardless of the number of recording sheets loaded. have an effect.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment in which the present invention is applied to a facsimile machine, Fig. 2 is a view along arrow A-A in Fig. 1, Fig. 3 is a schematic diagram of the facsimile machine, and Fig. 4 is a general facsimile machine. FIG. 2 is a schematic diagram of the device. 1 is the facsimile machine body, 5 is the recording sheet roll, 6
is a platen roller, 7 is a recording sheet, 8 is a recording head,
10 is a cutter, 13 is a recording sheet storage tray, 14 is an outer tray, 15 is an inner tray, 16 is a storage space, 18 is a rib, 20 is an open part, 28 is a discharge roller, 29 is a pinch roller, 30 is a press plate, 32 is a pressure spring, 33 is a grip roller, 34 is a grip belt, 35 is a bottom, 35 is a rubber piece, and 37 is a locking mechanism. Applicant Canon Co., Ltd. Agent Patent Attorney Shu Nakagawa Old handwriting 1 Figure

Claims (2)

[Claims] (1) a first guide member that guides the leading edge of the recording sheet on which an image has been recorded by the recording section downward; a second guide member that faces the first guide member and forms a recording sheet storage space; an open part that allows the rear end of the recording sheet to be reversed at the upper end of the first guide member; a driven discharge roller provided on the side of the recording sheet discharge section of the recording device; and a discharge roller provided opposite to the discharge roller. A pair of ejection rollers including a pinch roller provided in the storage space, a rotating grip roller provided in the storage space, and a pressing plate provided in the storage space to grip the leading edge of the recording sheet fed downward. Features a recording sheet storage tray. (2) The recording sheet storage tray according to claim 1, wherein the pressing plate is biased by a spring member.