JP3370503B2 - Paper ejection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet discharging device provided in a document reading section of a facsimile machine, for example.

[0002]

2. Description of the Related Art Conventionally, there is a document reading section in a facsimile apparatus as shown in FIG. In FIG. 9, reference numeral 1 denotes an apparatus main body of a facsimile apparatus. An original reading device 2 and an original setting unit 3 are provided side by side on an upper surface of the apparatus main body 1, and an original set by the original setting unit 3 is read by the original reading device 2. The information is conveyed and read on the document.

The document reading device 2 is constructed as follows. The upper surface of the device body 1 is open,
An opening / closing cover 4 is provided on the opening 1a. The opening / closing cover 4 is pivotally supported on the apparatus main body 1 by a pivot (not shown) provided at a downstream end (left end in the figure) of the document transport direction along a direction perpendicular to the document transport direction. The upper body of the apparatus body 1 can be swung up and pivoted about a pivot from a position where it covers the open upper surface. The open / close cover 4 is locked by a lock mechanism (not shown) when in the closed position.

The opening / closing cover 4 is used for the document reading section 2
At the time of inspecting the inside of the document reading unit 2 due to a situation such as document jamming at
It is for opening the upper open part of the. The opening / closing cover 4 has a function as an operation panel by providing a key for performing a transmission operation of the facsimile apparatus on the outer surface thereof.

The apparatus main body 1 is provided with a frame 11 for forming a document conveying passage, and the frame 11 has an apparatus main body 1 formed therein.
A document transport passage forming plate 12 is formed facing the open portion of the upper surface. The document transport path forming plate 12 is formed along the document transport direction. A document transport passage forming plate 13 is provided facing the document transport passage forming plate 12 in a portion of the opening / closing cover 4 which is a lower surface portion (inner surface portion). The document transport path forming plate 13 is formed along the document transport direction.

The document transport passage forming plate 12 and the document transport passage forming plate 13 transport a document in a space sandwiched between them from the right to the left in the drawing.
Is formed. The document transport passage forming plate 12 forms the lower surface of the document transport passage 14, and the document transport passage forming plate 13 forms the upper surface of the document transport passage 14.

Further, a discharge port 15 is formed at the end face portion on the downstream side (the left end face portion in the figure) of the apparatus main body 1 in the document transport direction, and is connected to the document transport passage 14. The discharge port 15 is for discharging the document T transported in the document transport passage 14 to the outside of the apparatus main body 1.

The original transport passage forming plate 12, the original convey passage forming plate 13, the original convey passage forming frame 11, the apparatus main body 1 and the opening / closing cover 4 constitute a machine body.

A separation roller 16 and a document separation pad 17 are provided on the upstream side of the document transport path 14 between the apparatus main body 1 and the opening / closing cover 4 in the document transport direction. The separation roller 16 is arranged along the direction perpendicular to the document conveyance direction and is rotatably provided on the apparatus main body 1. The separation pad 17 is fixed to the opening / closing cover 4 and comes into contact with the separation roller 16 by an elastic force. There is. Separation roller 16
The separating pad 17 separates the documents set in the document setting section 3 one by one and sends them out.

Conveying rollers 22 and 23 are provided on the upstream side of the document conveying path 14 in the document conveying direction. The carrying roller 22 is arranged along the direction perpendicular to the document carrying direction and is rotatably provided on the apparatus main body 1, and the carrying roller 23 is arranged along the direction perpendicular to the document carrying direction to provide an opening / closing cover. 4 is provided. The carrying roller 22 is rotated by a rotation driving mechanism (not shown) provided in the apparatus body 1, and the carrying roller 23 comes into contact with the carrying roller 22 and is driven to rotate. The transport rollers 22,
The numeral 23 is arranged in the holes formed in the document conveying passage forming plate 12 and the document conveying passage forming plate 13.

Discharge rollers 18 and 19 are provided on the downstream side of the document transport path 14 in the document transport direction. The discharge roller 18 is rotatably provided in the apparatus main body 1 along a direction perpendicular to the document conveyance direction, and the discharge roller 19 is arranged along a direction perpendicular to the document conveyance direction to open and close the cover. 4 is provided. The discharge roller 18 is rotated by a rotation drive mechanism (not shown) provided in the apparatus body 1, and the discharge roller 19 comes into contact with the discharge roller 18 and is driven to rotate. The discharge rollers 18 and 19 discharge the document from the discharge port 15 to the outside. Discharge roller 18,
Reference numerals 19 are arranged in holes formed in the document transport passage forming plate 12 and the document transport passage forming plate 13.

A separation roller 16 is provided in the document transport passage 14.
A reading sensor 20 and a contact roller 21 are provided in combination between the separating pad 17 and the discharge rollers 18 and 19. The reading sensor 20 is arranged in the apparatus main body 1 and is arranged along a direction perpendicular to the document conveying direction, and reads the information written on the document conveyed through the document conveying passage 14. Close roller 2
Reference numeral 1 is provided in the apparatus main body 1 so as to be arranged along a direction perpendicular to the document transport direction, and closely contacts the reading sensor 20 with the document transported through the document transport passage 14. The close contact roller 21 is rotated by a rotation drive mechanism (not shown) provided in the apparatus body 1. The reading sensor 20 and the close contact roller 21 are arranged in the holes formed in the document conveying passage forming plate 12 and the document conveying passage forming plate 13.

In the figure, reference numeral 24 is a discharge tray, which is arranged outside the apparatus main body 1 so as to face the discharge port 15 and on the extension line of the document conveying passage 14, and one end of which is a tray on the apparatus main body 1. It is fixed to the holding portion 1b. The discharge tray 24 receives the documents discharged from the discharge port 15 in a stack. The discharge tray 24 is inclined upward at a predetermined inclination angle from one end fixed to the apparatus main body 1 to the other end in order to stably receive the original.

The document setting section 3 has an upper surface cover 5 for covering the opened upper surface of the apparatus main body 1 and an original tray 6 provided in the apparatus main body 1.

The operation of the document reading apparatus thus configured will be described.

The documents T to be transmitted are piled up and set on the document tray 6 of the document setting section 3. One end of the set document T is located on the separation roller 16. The set originals T are separated one by one through the space between the separating pad 17 and the rotating separating roller 16 and sent to the original conveying passage 14. The document T fed into the document transport passage 14 is transported between the rotating transport roller 22 and the transport roller 23 and is transported between the reading sensor 20 and the contact roller 21. Here, the information written on the document T is read by the reading sensor 20. Further, the document T passes through between the rotating discharge rollers 18 and 19 and is discharged from the discharge port 15 to the discharge tray 24. Output tray 2
At 4, the originals discharged from the discharge port 15 are sequentially stacked and received.

[0017]

In such a conventional document reading apparatus, since the discharge roller 18 is provided in the hole formed in the document conveying passage forming plate 12, the document conveying direction with respect to the discharge roller 18 is increased. A part of the forming plate 12 (a part of the frame 11) that forms the lower surface of the document conveying path is present on the downstream side. For this reason, the rear end of the document T discharged from the discharge port 15 through the space between the rotating discharge rollers 18 and 19 forms a document transport path in which the rear end of the document T is located downstream of the discharge rollers 18 in the document transport direction. Board 12
There are times when you get caught in. In this case, as shown in FIG. 10, when the next document T is discharged, the front end Ta of the document T hits the trailing end Tb of the preceding document T which is placed on the document transport passage forming plate 12 and caught. The succeeding original document T pushes out the preceding original document T as it is conveyed.

Then , the pushed original document T moves to the front of the discharge tray 24 while being pushed by the succeeding document T and falls from the discharge tray 24, or the preceding document T stops on the discharge tray 24. Even in such a case, the subsequent document T discharged onto the discharge tray 24 may sneak below the preceding document T, and the order in which the documents T are arranged may be out of order.

The present invention has been made based on the above circumstances, and it is possible to prevent the occurrence of troubles such as the sheets being smoothly ejected one after another so that the sheets may drop from the ejection tray or the order of arranging the sheets may be out of order. It is an object to provide a discharging device.

[0020]

According to a first aspect of the present invention, there is provided a sheet ejecting device for conveying a sheet of cut paper one by one.
A body having a paper discharge port communicating with the transfer passage forming member and the sheet conveying path to form a passage, by sandwiching the sheet transported to the sheet conveying path provided in the paper transport path of the aircraft said aircraft A pair of discharge rollers for discharging the sheets to the outside of the machine body, and a discharge tray provided outside the machine body for receiving and stacking the sheets discharged from the machine body, and the discharge tray is downstream with respect to the pair of discharge rollers in the sheet conveying direction. A discharge path is formed on the side to bend the sheet of paper that has passed through the pair of discharge rollers so that the trailing edge of the sheet contacts the conveyance path forming member .

According to the configuration of the present invention, the sheet that has passed through the discharge roller is discharged to the discharge tray, for example, in a path that curves downward and then faces upward. Here, when the paper is conveyed to the end and the trailing edge of the paper passes between the pair of discharge rollers, the paper has a restoring force that tends to stretch straight due to the waist of the paper, so that the trailing edge of the paper moves downward. It touches without any gap so that it may be pressed against the airframe that forms the path while trying to go down. Therefore, the leading edge of the next sheet to be ejected next is always positioned above the trailing edge of the preceding document.

Therefore, the preceding original is moved to the front of the discharge tray while being pressed by the following original and falls from the discharge tray, or the original below the preceding original discharged to the discharge tray precedes the original. It is possible to prevent the occurrence of a troublesome situation in which the manuscripts of (1) and (2) get out of order and the order of the manuscripts is changed.

Further, the invention of claim 1 is the discharge path.
However, a downward member that presses the paper from the upper side is provided at a position located on the downstream side of the discharge roller in the paper conveyance direction,
An upward member that receives the paper from the lower side is provided at a position downstream of the downward member in the sheet conveying direction, and the contact point between the pair of discharge rollers and the upper end of the upward member are formed. It is characterized in that the lower end of the downward member is located on the lower side with respect to the straight line connecting the and. According to this invention
The paper, make sure that it does not cause any problems.
Realizing a discharge route that can be actually discharged with a simple configuration
it can.

The invention according to claim 2 is the paper according to claim 1.
In the ejection device, the upward direction in the ejection tray
At the upstream side of the member in the paper transport direction, the paper
It receives paper ejected from the exit and is higher than the above-mentioned upward member.
A guide member that is elastically deformable and is guided to the discharge tray at a certain position
Is provided.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described with reference to FIGS. In this embodiment, like the embodiment shown in FIG. 9, the present invention is applied to a document reading section of a facsimile machine. FIG. 1 shows a facsimile apparatus equipped with a document reading section to which the sheet discharging apparatus of this embodiment is applied. 1 to 5
In FIG. 9, the same parts as those in FIG. 9 are denoted by the same reference numerals. That is, the parts in FIGS. 1 to 5 designated by the same reference numerals as those in FIG. 9 have the above-mentioned configuration.

The configuration which is a feature of the present invention will be described. In the figure, reference numeral 31 denotes a downward member, which is located, for example, on the downstream side of the discharge rollers 18 and 19 in the document conveying direction, and is integrally formed inside the opening / closing cover 4, and the lower end thereof is the discharge roller 18 and the discharge roller 19. It projects below the contact point. That is, the lower end of the downward member 31 has the discharge roller 1
Document T that is discharged by passing between the sheet 8 and the discharge roller 19.
It comes into contact with and is pressed from above.

The downward member 31 is formed, for example, by arranging a plurality of protrusions having a sectional shape shown in FIGS. 1 to 5 in a direction perpendicular to the document conveying direction, that is, in the entire width direction of the opening / closing cover 4 or in the central portion. One example is to provide or continuously form a ridge portion having a cross-sectional shape shown in FIGS. 1 to 5 in the entire width direction of the opening / closing cover 4 or in the central portion.

Reference numeral 32 denotes an upward member, which is located on the downstream side in the document transport direction with respect to the discharge port 15 of the apparatus main body 1 and is integrally formed on the upper surface of the discharge tray 24. It protrudes to the upper side. That is,
The upper end of the upward member 32 contacts the document T pressed by the downward member 31 from below and receives it. The position where the upward member 32 is formed is a position where the downstream side end of the open / close cover 4 does not contact when the open / close cover 4 is swung up and rotated at the maximum angle.

The height of the upward member 32 is generally set to the original T.
In consideration of the thickness of the paper used for the sheet and the strength of the waist, the size of the document T that has passed through the upward member 32 can be directly moved upward and reach the discharge tray 24.

The upward member 32 may be provided, for example, with a plurality of protrusions having a sectional shape shown in the drawing in a direction perpendicular to the document conveying direction, that is, in the entire width direction of the opening / closing cover 4 or in the central portion thereof, or in the illustrated sectional shape. It is possible to form the formed ridge portion continuously over the entire width direction or the central portion of the opening / closing cover 4.

Here, the pair of discharge rollers and the downward member 3
1 and the upward member 32 include a pair of discharge rollers 18, 19
With respect to a straight line connecting the contact point A (point sandwiching the document T) A and the upper end 32a of the upward member 32 to the lower end 3 of the downward member 31.
1a is located on the lower side. As a result, the pair of discharge rollers 18, 19, from the upstream side in the document conveying direction,
By providing the downward member 31 and the upward member 32 side by side, and setting these three members in the above-mentioned positional relationship, the pair of discharge rollers 18, 19 are provided downstream of the pair of discharge rollers 18, 19 in the sheet conveying direction. Document T that has passed through
To form a discharge path that curves downward from the contact point of the pair of discharge rollers 18 and 19.

That is, in this discharge path, the rear end of the document T that has passed through the pair of discharge rollers 18 and 19 is elastically displaced downward by the restoring force (elastic force) of the paper forming the document T. As a result, the rear end of the document T is pressed against a part of the forming plate 12 (a part of the frame 11) forming the lower surface of the document transport passage 14 and stopped in a state of contacting without any gap.

Further, in the discharge tray 24, the upward member 3 is provided on the upstream side of the upward member 32 in the document conveying direction.
The inclined surface 24a is formed so as to incline so as to increase toward 2. The inclined surface 24a is for smoothly ejecting the document T.

The operation of the document reading section 2 having such a configuration will be described.

As described above, the originals set in the original setting section 3 are separated one by one by the separating roller 16 and the separating pad 17, and are conveyed through the original conveying passage 14 by the conveying rollers 22 and 23, and the reading sensor 20
Between the contact roller 21 and the close contact roller 21, and further discharge roller 1
8 and the discharge roller 19 discharge the sheet from the discharge port 15 of the apparatus body 1 to the discharge tray 24.

As shown in FIG. 2, the document T that has passed through the discharge rollers 18 and 19 is curved downward by the downward member 31 and then moved upward by the upward member 32 so that the original T moves from the discharge port 15 to the discharge tray. It is discharged to 24.

Here, as shown in FIG. 3, when the trailing edge Tb of the preceding document T passes the contact point of the pair of discharge rollers 18 and 19, the trailing edge Tb of the document T tends to extend straight. It is elastically displaced downward due to the restoring force. As a result, the trailing edge Tb of the document T is pressed against the document transport passage forming plate 12 (a part of the frame 11) located on the downstream side in the document transport direction with respect to the discharge roller 18 and stops in a state of contacting without any gap. . As shown in FIG. 4, when the trailing edge Tb of the document T is pressed against the document transport passage forming plate 12 located on the downstream side in the document transport direction with respect to the discharge roller 18 and is in contact therewith without a gap, As shown in the drawing, when the succeeding original T is conveyed through the original conveying path 14 and the leading end of the succeeding original T passes the contact point between the Ta pair of discharge rollers 18 and 19, the leading end of the original T always precedes the preceding preceding T. The document T is placed on the trailing edge of the document T in an overlapping manner.

Further, when the succeeding original document T is sent, FIG.
As shown in FIG. 3, the preceding document T is discharged from the discharge port 15 and received by the discharge tray 24 due to the frictional force between the preceding document T and the following document T. Next, the document T in the succeeding stage is discharged from the discharge port 15 and placed on the preceding document T already received on the discharge tray 24 in an overlapping manner.

Therefore, the preceding document T moves to the front of the discharge tray 24 while being pressed by the following document and falls from the discharge tray 24, or the lower side of the preceding document T discharged to the discharge tray 24. It is possible to prevent the occurrence of a trouble such as a case where the document T subsequent to the document T sneak in and the order in which the document T is lined up is out of order.

Further, the discharge path of this embodiment is a combination of the upward member 31 and the downward member 32, and realizes a simple and easy discharge path for surely discharging a document without causing a trouble. be able to.

FIG. 6 to FIG. 8 for the second embodiment.
Will be described with reference to. 6 to 8, the same parts as those of FIGS. 5 to 5 are designated by the same reference numerals.

In consideration of the thickness of the paper generally used for the document T and the strength of the waist, the upward member 32 is used as the upward member 32.
The size of the document T that has passed through is set so that it can move upward and reach the discharge tray 24 as it is. For this reason,
If the paper forming the document T is thin and the stiffness is low, the document that has passed through the upward member 32 cannot move upward as it is, causing a sag, which hinders the discharge of the document. In this case, the document T discharged from the discharge port 15 is placed at a steeper angle than the upward member 32, that is, at a higher position than the discharge tray 24.
It is necessary to lead to.

Therefore, as shown in FIG.
A guide member 33 formed of a synthetic resin film is provided on the upstream side of the upward member 32 in the document conveying direction.
As shown in FIG. 8, the guide member 33 is used for the discharge tray 2
4, a fixing portion 33a for fixing the adhesive member 4 to the upper surface 4 and the upward member 3
2 has an inclined portion 33b which is inclined so as to be higher toward the document T and receives the document T, and a leg portion 33c which supports the inclined portion 33b and contacts the inclined surface 24a of the discharge tray 24. The inclined portion 33b and the leg portion 33c are provided. Can be bent by elastic deformation. The inclination angle of the inclined portion 33b is
The angle is steeper than the angle formed by the upward member 32 with reference to the reference line B that contacts the lower end of the downward member 31.

Then, the document T discharged from the discharge port 15
Moves in contact with the inclined portion 33 of the guide member 33. When the document T is formed of a paper having a thickness and a waist strength which are normally used, the guide member 33 has the inclined portion 33b and the leg portion 33c folded by elastic deformation as shown by a broken line in FIG. Turn. Therefore, the document T is received by the upward member 32 and discharged. Further, when the document TA is formed of a thin paper and a weak paper, the guide member 33 maintains the normal shape by the elasticity of the inclined portion 33b and the leg portion 33c as shown by the solid line in FIG. There is. That is, the document T is supported only by the inclined portion 33b of the guide member 33 and reaches the discharge tray 24 beyond the upward member 32.

Further, as shown in FIG. 7, when the open / close cover 4 is swung up and rotated at the maximum angle, the guide member 33 is pushed by the end of the open / close cover 4 and bent by elastic deformation. Note that FIG. 7 also shows that the upward member 32 is in a position where it does not come into contact when the open / close cover 4 is swung up and rotated at the maximum angle.

In the above-described embodiment, the apparatus of the present invention is applied to the original reading apparatus in the facsimile apparatus. However, the present invention is not limited to this, and the apparatus of the present invention is used to convey recording paper in the facsimile apparatus. It can be widely applied to a device for ejecting paper such as a device for ejecting paper.

[0047]

According to the sheet discharging apparatus of the invention of claim 1, the sheet passing through the discharging roller is curved downward by the downward member and then upward by the upward member. for that will be discharged to the trailing edge of the sheet passes between the pair of discharge rollers, conveying by the restoring force of the paper
It makes contact without any gap so that it can be pressed against the airframe that forms the passage . Therefore, the leading edge of the next sheet to be ejected next is always placed above the trailing edge of the preceding document. Therefore, the preceding document moves to the front of the discharge tray while being pressed by the following document and falls from the discharge tray, or the following document below the preceding document discharged to the discharge tray is the preceding document . it is possible to prevent the occurrence of problems such situation order in which document are arranged sunk in the lower side out of order. Also, this
According to the invention of claim 1, the discharge is performed by the downward member and the upward member.
Since the path is formed, no trouble occurs with the paper.
Simple configuration of the discharge route that allows for reliable and reliable discharge
Can be achieved with.

According to the second aspect of the invention, from the paper discharge port
The ejected paper is received by the guide member and
Can reach beyond and reach the output tray.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper ejection device according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharge device according to the embodiment.

FIG. 3 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharge device in the embodiment.

FIG. 4 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharging device in the embodiment.

FIG. 5 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharging device in the embodiment.

FIG. 6 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharge device according to the second embodiment.

FIG. 7 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a paper discharging device in the embodiment.

FIG. 8 is a view showing a discharge tray and a guide member used in the same embodiment.

FIG. 9 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a conventional paper discharge device.

FIG. 10 is a partially cutaway side view showing a facsimile device equipped with a document reading device which is a conventional paper discharge device.

[Explanation of symbols]

1 ... Device body, 2 ... Original reading section, 4 open / close cover, 12 ... Transport path forming member, 14 ... Paper transport passage, 15 ... outlet, 18 ... discharge roller, 19 ... Ejecting roller, 24 ... Ejection tray, 31 ... upward member, 32 ... Downward member.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 29/52 B65H 29/70

Claims (2)

(57) [Claims] 1. A machine provided with a conveyance path forming member for forming a paper conveyance path for conveying cut sheets one by one, and a paper discharge port connected to the paper conveyance path, and a machine provided in the paper conveyance path of the machine. And a pair of discharge rollers for nipping the paper conveyed in the paper conveyance path and ejecting the paper to the outside of the machine body, and a discharge tray provided outside the machine body for receiving and stacking the paper discharged from the machine body And a discharge path for bending the sheet that has passed through the pair of discharge rollers to the downstream side in the sheet conveyance direction with respect to the pair of discharge rollers and contacting the trailing end of the sheet with the conveyance path forming member. Is formed, and the discharge path is used to convey the paper to the pair of discharge rollers.
Press the paper from above to a position located on the downstream side in the feeding direction
Providing a downward member, how to convey paper to this downward member
Upward to receive paper from the lower side at a position located on the downstream side
Of the pair of discharge rollers, which is formed by providing a
With respect to the straight line connecting the contact point and the upper end of the upward member,
The sheet ejection device, wherein the lower end of the downward member is located on the lower side . 2. The upward member of the discharge tray
At the upstream side with respect to the paper transport direction, the paper outlet
Higher than the above-mentioned upward member by receiving the paper discharged from
A guide member that can be elastically deformed to guide the discharge tray
Paper discharge device according to claim 1, characterized in that it is kicked.