JPH08231069A - Automatic paper feed device - Google Patents

Abstract

PURPOSE: To simplify the removing operation of a separating tool from a frame by releasing the stop of the separating tool, and rotating a separating tool body centering around a holding means in a space section having a separatingly carrying roller located there in alienating direction from the frame for removing the separating tool from the frame. CONSTITUTION: In the case of removing a separating tool 22 from a frame 21, the stop of the separating tool 22 caused by the pawl receiver 51 of an elastic pawl 45 serving as a stopper is released. The separating tool body 41 of the separating tool 22 is turned by a pair of cylinders 44 and a pair of holding shafts 50 centering around a holding means in a space section having a separatedly carrying roller 23 located there to the position of a prescribed angle in an alienating direction from the frame 21, and removed from the frame 21 at the above position. In the case of removing the separating tool 22 from the frame 21, the removement of the separating tool dispenses with difficult operation such as the removing of the frame 21 from another member, and can be carried out by simple operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic paper feeder for feeding and conveying a plurality of stacked cut papers one by one by a friction separation method.

[0002]

2. Description of the Related Art For example, in a facsimile apparatus, a plurality of stacked originals are separated one by one by a friction separation method as an original reading device in which a reading sensor reads information described in the original while conveying the original for transmission. There is a system for carrying the document to the reading sensor, and a document reading unit of this system is disclosed in Japanese Utility Model Publication No. 1-174342.

This document reading device has a structure shown in FIG. Reference numeral 1 is a frame, 2 is a separation / conveyance roller provided opposite to the frame 1, and the frame 1 is rotated in a direction of approaching / separating from an outer peripheral surface of the separation / conveyance roller in order to remove a sheet when a paper jam occurs. It is movably installed. 3 is a separator, which has a separator body 4, a rubber plate 5 attached to the separator body 4, and a leaf spring 6 for applying pressure to the rubber plate 5.

In order to attach the separating tool 3 to the frame 1, the separating tool body 4 is provided with a locking body 7,
A long hole 8 in the shape of a hook is formed in the. Then, the locking body 7 of the separator main body 4 is inserted into the elongated hole 8 of the frame 1 and moved to the inner part of the elongated hole 8. As a result, the separating tool main body 4 is held in the elongated hole 8 so as to be rotatable in the direction of approaching and separating from the separating and conveying roller 2, and the rubber plate 5 is pushed by the leaf spring 6 to contact the outer peripheral surface of the separating and conveying roller 2. Note that reference numeral 9 in the drawing denotes a document table on which a document P made of a plurality of cut sheets is stacked. The operation of the document feeder configured as above will be described. The separation / conveyance roller 2 is rotated by a rotation driving device (not shown), and a plurality of originals stacked on the document table 9 are sequentially transferred one by one due to friction between the rubber plate 5 and the outer peripheral surface of the separation / conveyance roller 2. They are separated one by one, pass between them, and are supplied and conveyed toward a reading sensor (not shown).

[0005]

The conventional document feeding apparatus thus constructed has the following problems. In the separator 3, the locking body 7 of the separator main body 4 is inserted into the long hole 8 of the frame 1 and is rotatably supported.
When is rotated in a direction away from the separating and conveying roller 2, the separating tool 3 becomes free.

By the way, in the document reading apparatus adopting the friction separation method, the rubber plate 5 of the separating tool 3 is worn away as the number of sheets of the document passing increases, and the separating / conveying function is lowered to a value specified in the specification. In that case, the rubber plate 5 or the separating tool 3 as a whole must be replaced. In this case,
It is necessary to remove the separating tool 3 from the frame 1.

Therefore, as described above, when the frame 1 is rotated in the direction of separating from the separation / conveyance roller 2, the separation tool 3
Is in a free state, and the locking body 7 of the separating tool 3 is in the frame 1.
The separator 3 can be easily removed from the frame 1 by coming out of the elongated hole 8. That is, when the separating tool 3 is removed from the frame 1 for maintenance, the frame 1 can be easily removed without requiring a troublesome operation such as removing the frame 1 from the main body of the facsimile apparatus.

On the other hand, however, when the frame 1 is opened, the separating tool 3 is always in a free state, so that another article may collide with the separating tool 3. In this way, the locking body 7 is disengaged from the elongated hole 8 of the frame 1 by the unintended action, and as a result, the separator 3 is disengaged from the frame 1 even when it is not necessary to remove the separator 3. There's a problem.

Further, when the frame 1 is opened, the separating tool 3 is always in a state where it can freely rotate about the locking body 7,
This may hinder the operation of opening and closing the frame 1. Therefore, when the frame 1 is opened as described above, the separating tool 3 is easily detached, and when the frame 1 is opened, the operator manually presses the separating tool 3 to open and close the frame 1. Therefore, there is a problem that the handling operation of the document feeding device becomes troublesome.

The present invention has been made based on the above circumstances, and while the separating tool can be easily removed from the frame, the separating tool is stably held when the frame is opened and can be handled easily. It is an object of the present invention to provide an easy automatic paper feeder.

[0011]

According to another aspect of the present invention, there is provided an automatic paper feeding device, a frame, a rotating separating / conveying roller provided so as to face the frame, a separator body, and a separator body attached to the separator body. A separating tool having a rubber plate that comes into contact with the outer peripheral surface of the separating / conveying roller and separates and conveys a plurality of cut paper sheets stacked together with the separating / conveying roller. In the space on the side where the separation / conveyance roller is located, the space can be rotated toward and away from the frame, and can be removed from the frame at a position rotated in a direction away from the frame. Holding means for holding in a state, a spring body for applying a force to the rubber plate in a direction of contacting the outer peripheral surface of the separating and conveying roller, and the separating tool main body from the frame. Succoth characterized by comprising a stopper which holds and prevents the rotation of the direction away from the frame at a position close to the frame than is possible positions.

According to another aspect of the invention, the stopper is provided on the elastic claw provided on one of the separator main body and the frame, and on the other of the frame and the separator main body. It is characterized in that it has a claw receiver that receives the claw and prevents rotation of the separator body, and the claw can be disengaged from the claw receiver by its elastic deformation.

[0013]

When the separator is removed from the frame, the stopper is released from the stop, and the separator main body is rotated about the holding means in the space where the separating / conveying roller is located so as to separate from the frame. Can be removed from the frame in place. Accordingly, when the separating tool is removed from the frame, it can be performed by a simple operation without a troublesome operation such as removing the frame from another member.

Further, the separator main body is
Even if the frame is moved in the direction away from the outer peripheral surface of the separation conveyance roller, the separation is prevented even if the frame is moved away from the frame at a position closer to the frame than the position where it can be removed from the frame. The tool does not rotate freely. Therefore, the operator does not need to manually press the separating tool to move the frame, and handling of the device is convenient.

The stopper is a combination of a claw provided on one of the separator main body and the frame, and a claw receiver provided on the other of the frame and the separator main body for receiving the claw to prevent rotation of the separator main body. With such a configuration, it is possible to securely hold the separator main body on the frame with a simple operation and remove the separator main body from the frame with a simple operation, even though the structure is simple.

[0016]

Embodiments of the present invention will be described with reference to the drawings.

An embodiment of the present invention is shown in FIGS.
Will be described with reference to.

In this embodiment, the automatic paper feeder of the present invention is applied to a document feeding / reading device provided in a facsimile machine. FIG. 9 is a perspective view showing the external appearance of the facsimile machine, and FIG. 8 shows the portion of the facsimile machine where the document feeding and reading device is provided. The document feeding / reading device automatically feeds a document for transmission sequentially and reads the information written in the document.

In FIG. 8 and FIG. 9, 11 is the main body of the facsimile machine, and 12 is the original table provided on the upper part of the main body 11, which is inclined downward toward the downstream side in the original conveying direction. , Originals for transmission to be read are stacked. Reference numeral 13 denotes an operation panel provided on the upper part of the apparatus main body 11 adjacent to the document table 12, which is equipped with keys for facsimile operation and a display panel.
An edge portion on the side opposite to is pivotally supported by the apparatus main body 11 so as to be able to swing up and rotate by a pivot support tool (not shown). Reference numeral 14 denotes a document discharge tray provided on the opposite side of the document table 12 with the operation panel 13 interposed therebetween, and a document which has been read is discharged. The document feeding / reading device is provided inside the operation panel 13 at the upper part of the apparatus main body 11.

The configuration of the document feeding and reading device will be described. In FIG. 8, reference numeral 21 denotes a frame, which has a width dimension according to the size of the original as shown in FIGS.
Further, it is a laterally long one having a predetermined length along the document transport direction, the upstream side portion in the document transport direction is formed to be inclined downward toward the document transport direction downstream side, and the other part is formed horizontally. There is.

Reference numeral 22 denotes a separating tool, which is provided at the center of the front inclined portion of the frame 21 in the width direction. The structure of this separating tool 22 and this separating tool 22 are attached to the frame 21.
The configuration provided in will be described later. 23 is a separation supply roller,
This is under the front sloped part of the frame 21 under the separator 2
It is arranged at a position opposite to 2 and orthogonal to the document conveying direction, is rotatably supported by a bearing (not shown), and is rotated by a rotation driving device (not shown).

Reference numeral 24 denotes a reading sensor which is arranged downstream of the separating and feeding roller 23 in the original conveying direction, and 25 denotes an original reading sensor which is arranged above the reading sensor 26.
It is a pressing roller that presses against 6. 26A and 26B are a pair of upper and lower conveying rollers arranged upstream of the reading sensor 25 in the original conveying direction, and 27A and 27B are a pair of upper and lower conveying rollers arranged downstream of the reading sensor 25 in the original conveying direction. These transport rollers 26A, 2
6B and one of the transport rollers 27A and 27B are rotated by a rotation driving device (not shown). A concave portion 28 for arranging the pressing roller 5 is formed in a horizontal portion of the frame 21, and a roller supporting portion 29 for supporting the conveying rollers 26A and 27A is formed.

Reference numeral 30 is a document guide arranged on the lower side of the frame 21, and 31 is a guide roller arranged on the upstream side of the separating and feeding roller 23 in the document conveying direction.

Next, the structure of the separating tool 22 and the separating tool 2
A configuration in which 2 is provided on the frame 21 will be described. FIG.
As shown in FIGS. 4 and 6, the separator 22 has a separator body 41, a rubber plate 42, and a spring body 43.

The separator main body 41 is held by the frame 21 and has the following structure. A pair of cylinders 44 are formed at the upstream end of the separator body 41 in the document transport direction at intervals in the direction perpendicular to the document transport direction. The pair of cylinders 44 are formed along a direction perpendicular to the document conveying direction, and a cutout opening 44a is formed in the upper part of the peripheral wall thereof. Both ends of the pair of cylinders 44 are open.

An elastic claw 45 is formed at the center of the downstream end of the separator main body 41 in the document conveying direction. The elastic claw 45 extends upward from the separator main body 41 and is then bent and extends downward to provide elasticity, and a claw portion 45a is formed at the lower end thereof. A step portion 46 is formed between the pair of cylinders 44 and the elastic claw 45 in the separator main body 41.

The rubber plate 42 is in frictional contact with the outer peripheral surface of the separating / supplying roller 23, and is arranged so as to overlap with the lower side of the separator main body 41, and the upstream end in the document conveying direction has the separator main body 41.
It is fixed to. The spring plate 43 has a pair of springs 47 formed at intervals in a direction perpendicular to the document transport direction. The spring plate 43 is superposed on the lower side of the rubber plate 42, and the upstream end in the document conveying direction is fixed to the rubber plate 42.

On the other hand, an opening 48 for arranging the separating tool 22 is formed in the central portion in the width direction of the front inclined portion of the frame 21, and a pair of edges are formed on both sides of the opening 48 in the document conveying direction. The wall portion 49 is formed. A pair of holding shafts 50 is formed on the pair of wall portions 49 along a direction perpendicular to the document conveying direction and projects toward the opening 48.

The pair of holding shafts 50 are to be fitted with the pair of cylinders 44 in the separator main body 41, and the upper and lower surfaces of the round bar are horizontally cut to have a diameter corresponding to the inner diameter of the cylinder 44. This thin flat portion 5 has a shape.
The thickness of 0a is smaller than the diameter of the round bar.
The width of the cutout portion 44a of the pair of cylinders 44 is such that the flat portion 50a can be taken in and out.

The center of the downstream end of the opening 48 in the document conveying direction is notched in steps to form a claw receiving portion 51.

Further, a gate-shaped portion 52 is formed in the frame 21 so as to straddle the opening 48, and a spring body 53 for pressing the stepped portion 46 of the separator main body 41 from above is formed in the gate-shaped portion 52 as described later. , For example a leaf spring is attached.

The separating tool 22 is supported by the frame 21 as described below. That is, the frame 21
Is rotated to stand up in a direction away from the separation / conveyance roller 23, the separator 22 is arranged below the front inclined portion of the frame 21, and the pair of cylinders 44 in the separator main body 41 are provided with openings 48 in the frame 21. It is fitted to the pair of holding shafts 50 formed in.

At this time, the cutouts 44 of the pair of cylinders 44 are aligned with the thin flat portions 50a of the pair of holding shafts 50, and the pair of holding shafts 50 are inserted from the cutouts 44 of the pair of cylinders 44 to the inside of the pair of cylinders 44. To insert. By standing the separator 22 vertically, for example, with respect to the pair of cylinders 44 on the upstream side in the document conveying direction, the cutout portions 44 of the pair of cylinders 44 and the thin flat portions 50a of the pair of holding shafts 50 face each other.

When the separating tool 22 is rotated toward the frame 21, the inner peripheral surfaces of the pair of cylinders 44 and the outer peripheral surfaces of the pair of holding shafts 50 are combined, so that the pair of cylinders 44 form a pair. It is rotatably held by the holding shaft 50.

As a result, the direction in which the separator body 41 (the entire separator 22) moves toward and away from the frame 21 in the space below the frame 21 (the space where the separation / conveyance roller 23 is located) with respect to the front inclined portion of the frame 21 is used as a reference. To a position at which the separator 22 is rotated at a predetermined angle in a direction away from the frame 21 (the separating tool 22 is erected vertically on the upstream side in the document transport direction with respect to the pair of cylinders 44, so that the notch of the pair of cylinders 44 is notched). The separator main body is held at a position where the portion 44aa and the thin-walled flat portions 50a of the pair of holding shafts 50 face each other so that the separator main body can be detached from the frame 21. In this embodiment, the pair of cylinders 44 and the pair of holding shafts 50 constitute a holding means.

Further, the separator main body 41 is rotated in a direction approaching the frame 21, and the elastic claw 45 is elastically applied to the claw receiver 51 at the downstream end of the opening 48 of the frame 21 in the document conveying direction. It is compressed and deformed, gets over the pawl receiver 51, and is positioned above it. As a result, the claw portion 45a of the elastic claw 45 engages with the claw receiver 51 from above as shown in FIG. In this state, the separator main body 41 is stopped so as not to rotate in the direction away from the frame 21 in the frame 21 unless the elastic claw 45 is elastically deformed and removed from the claw receiver 51. That is, the separator main body 41 is held at a position close to the frame 21 with respect to a position at which the separator main body 41 can be removed from the frame 21 so as to prevent rotation in a direction away from the frame. In this embodiment, the elastic claw 45 and the claw receiver 51 constitute a stopper.

In this state, the spring body 53 provided on the gate-shaped portion 52 of the frame 21 presses the stepped portion 46 of the separator main body 41 from above. Therefore, the separator main body 41 has the spring body 5
It is pushed in the direction away from the frame 21 by 3,
By engaging the claw portion 45a of the elastic claw 45 with the claw receiver 61, the elastic claw 45 does not come off the frame 21 and rotate to the lower space.

Then, when the operation panel 13 is tilted and rotated from the standing position toward the separating and conveying roller 23,
The frame 21 also rotates in the same direction, and the separating tool 41 also rotates in the same direction. As a result, as shown in FIG.
The rubber plate 42 comes into contact with the outer peripheral surface of the separation / conveyance roller 23. Since the separator body 41 is pushed by the spring body 53 in a direction away from the frame 21, the pressure of the spring body 53 becomes a contact pressure and the rubber plate 42 separates the separating and conveying roller 23.
Is pressed against the outer peripheral surface of the. Further, the pair of springs 47 of the spring plate 43 is pressed against the outer peripheral surface of the separation / conveyance roller 23.

The operation of the document feeding section thus constructed will be described. The separating / conveying roller 21 is rotated in the document conveying direction, and the rubber plate 42 of the separating tool 41 is in sliding contact with the outer peripheral surface of the rotating separating / conveying roller 23. The originals stacked on the original table 12 are moved to the upper part of the outer peripheral surface of the separation conveyance roller 21 by the inclination of the original table 12 and the rotation of the guide roller 31. Next, the originals are sequentially separated one by one from the upper original due to the friction between the front end of the rubber plate 42 and the outer peripheral surface of the separating / conveying roller 23, and are fed and conveyed toward the reading sensor 24 after passing between them. To be done. The pair of springs 47 of the spring plate 43 presses the document by the outer peripheral surface of the separation / conveyance roller 23.

Further, the original document is conveyed by rollers 26A and 26B.
While being transported by the transport rollers 27A and 27B, the information written on the document is read by passing between the pressing roller 25 and the reading sensor 26 and discharged to the discharge tray 14.

Here, when the rubber plate 42 of the separating tool 22 is worn down as the number of sheets of the originals passed increases and the separating / conveying function is lowered to the value specified in the specification, the rubber plate 5 or the separating plate is separated. It is necessary to replace the entire tool 32. In this case, the separating tool 22 is removed from the frame 21.

Therefore, the above-mentioned separating tool 22 is attached to the frame 2
Perform the procedure in the reverse order of the procedure for attaching to 1. That is, the elastic claw 45 of the separator main body 41 is compressed and deformed to get over the claw receiver 51 at the downstream end of the opening 48 of the frame 21 in the document conveying direction, and the elastic claw 45 is positioned below the claw receiver 51. . As a result, the separator main body 41 becomes the frame 2
The blocking of the rotation in the direction away from the frame 21 at a position close to the frame 21 with respect to the position where it can be removed from 1 is released.

As shown in FIG. 1, the separator main body 41 (separator 22) is rotated by its own weight in a direction away from the frame 21 about the pair of holding shafts 50. Then, the notches of the pair of cylinders 44 are formed by vertically separating the separator body 41 from the frame 21 at a predetermined angle (the separator 22 is erected vertically with respect to the pair of cylinders 44 on the upstream side in the document conveyance direction). 44a and the thin flat portions 50a of the pair of holding shafts 50 are rotated to a position where the thin flat portions 50a of the pair of holding shafts 50 face each other. Remove from 50a.

In this embodiment, the elastic claw 45 and the claw receiver 61 are provided.
A direction of approaching the outer peripheral surface of the separation / conveyance roller 23 at a position closer to the frame 21 than the position at which the separator main body 41, which receives the force of the spring body 53, can be detached from the frame 21 by using the stopper consisting of By blocking and holding the rotation of the separation tool 22, even if the frame 21 is moved in a direction away from the outer peripheral surface of the separation conveyance roller 23, the separation tool 22 does not rotate freely. Therefore, the operator does not need to manually push the separating tool 33 to move the frame 21, and the handling of the device is convenient.

When the separator 22 is removed from the frame 21, the stopper is stopped from stopping the separator 22 and the separator main body 41 of the separator 22 is held by the pair of cylinders 44 and the pair of holding shafts 50. It can be detached from the frame 21 at a position rotated by a predetermined angle in the direction away from the frame 21 in the space where the separating and conveying roller 23 is located around the means. Accordingly, when the separating tool 22 is removed from the frame 21, it can be performed by a simple operation without a troublesome operation such as removing the frame 21 from another member.

Then, the stopper receives the elastic claw 45 formed on the separating tool main body 41 and the elastic claw 45 formed on the frame 21 to prevent the separating tool main body 41 from rotating, and also elastically deforms the claw 45. By adopting a configuration in which the claw receiver 51 that releases the state of receiving the claws 45 is combined, the separator main body 41 can be reliably held on the frame 21 by a simple operation while having a simple configuration. The separator body 41 can be removed from the frame 21 by a simple operation.

In the above-described embodiment, the elastic claw 45 is formed on the separator main body 41 and the claw receiver 51 is formed on the edge portion of the opening 48 of the frame 21, but the present invention is not limited to this structure and as shown in FIG. The frame 2 as in the embodiment shown in FIG.
1. An elastic claw 61 having a claw portion 61a at the edge of the opening 48 of No. 1
May be formed, and the nail receiver 62 may be formed on the separator body 41. 10 and 11, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals.

The present invention is not limited to the above-described embodiments, but can be implemented with various modifications. The stopper is not limited to the combination of the elastic claw and the claw receiver, and a member for preventing rotation is provided in the separator main body 41 in the frame 21, and a member for preventing rotation when the separator 22 is removed from the frame 21. The separator main body 41 may be rotated by removing it from the frame 21.

[0049]

As described above, according to the automatic sheet feeder of the invention of claim 1 of the present application, when the separating tool is removed from the frame, the stop of the separating tool by the stopper is released,
It is possible to remove the separator main body from the frame at a position rotated around the holding means in the space where the separation / conveyance roller is located so as to separate from the frame. Accordingly, when the separating tool is removed from the frame, it can be performed by a simple operation without a troublesome operation such as removing the frame from another member.

In addition, using the stopper,
Even if the frame is moved in the direction away from the outer peripheral surface of the separation conveyance roller, the separation is prevented by holding the rotation in the direction away from the frame at a position closer to the frame than the position where it can be removed from the frame. The body does not rotate freely. Therefore, the operator does not need to manually press the separating tool to move the frame, and handling of the device is convenient.

According to the automatic paper feeder of the second aspect of the present invention, the stopper receives the claw provided on one of the separator main body and the frame and the claw provided on the other of the frame and the separator main body. By adopting a configuration in which the separating tool body is combined with a claw receiver that prevents rotation of the separating tool body, it is possible to securely hold the separating tool body in the frame by a simple operation, while having a simple structure, and to simplify the operation. The separator body can be removed from the frame by operation.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a document separating unit in a document feeding / reading device of a facsimile apparatus which is an embodiment of an automatic sheet feeding device of the present invention.

FIG. 2 is a cross-sectional view showing a document separating portion of the embodiment.

FIG. 3 is a cross-sectional view showing a state where the separating tool is detached from the frame in the document separating section of the embodiment.

FIG. 4 is a perspective view of the frame of the document separating portion and the separating tool of the embodiment as viewed from above.

FIG. 5 is a perspective view of the frame of the document separating portion and the separating tool of the embodiment as seen from above.

FIG. 6 is a perspective view of the frame of the document separating section and the separating tool of the embodiment as seen from below.

FIG. 7 is a perspective view of the frame of the document separating section and the separating tool of the embodiment as seen from below.

FIG. 8 is a cross-sectional view showing a document feeding / reading device of the facsimile apparatus of the embodiment.

FIG. 9 is a perspective view showing the facsimile apparatus according to the embodiment.

FIG. 10 is a cross-sectional view showing a document separating portion in a document feeding / reading device of a facsimile apparatus according to another embodiment.

FIG. 11 is a cross-sectional view showing a state in which the separating tool is detached from the frame in the document separating section of the embodiment.

FIG. 12 is a cross-sectional view showing an example of a conventional automatic sheet feeder.

[Explanation of symbols]

 11 ... Facsimile apparatus main body, 12 ... Original platen, 13 ... Operation panel, 14 ... Ejection tray, 21 ... Frame, 22 ... Separation tool, 23 ... Separation roller, 41 ... Separation tool main body, 42 ... Rubber plate, 43 ... Spring plate , 44 ... Cylinder, 45 ... Elastic claw, 47 ... Spring, 50 ... Holding shaft, 51 ... Claw receiver, 61 ... Elastic claw, 62 ... Claw receiver.

Claims (2)

[Claims] 1. A frame, a rotating separating / conveying roller provided so as to face the frame, a separator main body and an outer peripheral surface of the separating / conveying roller attached to the separator main body and in contact with the separating / conveying roller. A separator having a rubber plate that separates and conveys a plurality of cut paper sheets that are stacked together with each other, and the separator main body with respect to the frame in the space portion on the side where the separation and conveyance roller is located. And a separation means for holding the rubber plate in a state in which it can be rotated toward and away from the frame and can be removed from the frame at a position rotated in a direction away from the frame, and the rubber plate. At a position closer to the frame than a position where the spring body that applies a force in a direction of contacting the outer peripheral surface of the transport roller and the detachable body can be detached from the frame. An automatic sheet feeding device, comprising: a stopper for holding and holding a rotation in a direction away from the frame. 2. The stopper includes an elastic claw provided on one of the separator body and the frame, and an elastic claw provided on the other of the frame and the separator body to receive the claw of the separator body of the separator. 2. The automatic sheet feeder according to claim 1, further comprising a claw receiver that prevents rotation, wherein the claw can be disengaged from the claw receiver due to its elastic deformation.