JP2001302014A - Paper feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper feeder that can reliably hold a sheet material from the obverse and reverse sides. SOLUTION: A cutting plotter has a plurality of grit rollers 3a to 3c mounted on a rail 4. A sheet material is located on the grit rollers 3a to 3c, and a plurality of pinch rollers are set over the sheet material. The pinch rollers are opposed to the respective grit rollers 3a to 3c. When the pinch rollers cooperate with the respective grit rollers 3a to 3c to pinch the sheet material, the sheet material is set in place. The pinch rollers are positioned opposite the respective grit rollers 3a to 3c by recesses 20a to 20c in a lever holding plate 20 arranged near the rail 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeder, and more particularly to a paper feeder having a mechanism for feeding a sheet material, such as a printer or a cutting plotter.

[0002]

2. Description of the Related Art FIG.
0 is a perspective view of a cutting plotter 100 which is an example of a conventional paper feeding device. Cutting plotter 10
At 0, the sheet material 200 is to be fed.
Then, in the cutting plotter 100, the platen 1
A plurality of grit rollers (not shown) are located on the grit 05, and the sheet material 200 is located on the grit rollers.
Also, a plurality of pinch rollers 1 are placed on the sheet material 200.
12 are located. The plurality of pinch rollers 112 are arranged so as to face the individual grit rollers with the sheet material 200 interposed therebetween. Pinch roller 1
The sheet material 200 is held (set) by being sandwiched from above and below by the grit roller 12 and the grit roller, and is sent out or rewound in the direction of the double arrow r.

[0003] The cutting plotter 100 includes:
A printer head 110 is provided above the sheet material 200. The printer head 110 includes the sheet material 200.
Can move in the direction of the double arrow t. The double arrow t direction is a direction perpendicular to the double arrow r direction.

[0004] Here, an assembly structure of the pinch roller 112 in the cutting plotter 100 will be described. 11 and 12 show the cutting plotter 10.
0 shows an assembling structure of the pinch roller 112 at 0.

In FIGS. 11 and 12, a frame 111
Inside, a support portion 113 is attached rotatably about a support shaft 114. The tip of the support portion 113 has a shaft 12
1 supports the pinch roller 112. The stop position of the pinch roller 112 is changed up and down by vertically moving the rear end of the cam 115 disposed above the rear end of the support 113. The details will be described below.

The rear side of the support 113 has a crank shape. The cam 115 is rotatable about a shaft 119, and has a grip portion 115c at the rear end.

When setting the sheet material 200, the cutting plotter 100 first presses the grip portion 115c downward to manually rotate the cam 115, and moves the pinch roller 112 upward as shown in FIG. Let it. Next, after preparing the sheet material below the pinch roller 112, the grip 115c is lifted upward to rotate the cam 115, and the pinch roller 112 is moved downward as shown in FIG. so,
The sheet material 200 is held.

However, in the conventional paper feeder, when the stop position of the pinch roller 112 is changed, the position of the pinch roller 112 sometimes shifts in the direction of the double arrow t. When the position of the pinch roller 112 shifts, FIG.
However, even if the pinch roller 112 is moved downward as described above, the pinch roller 112 does not face the grit roller that should be opposed to the pinch roller 112, and there is a problem that the sheet material 200 cannot be pinched successfully with the grit roller. Further, in this case, since the pinch roller 112 rushes into a portion of the sheet material 200 that is not lined with the grit roller, the sheet material 200
There was also the problem of wrinkling and tearing.

The present invention has been conceived in view of such circumstances, and an object of the present invention is to provide a paper feeder capable of securely holding a sheet material from both sides.

[0010]

According to the present invention, there is provided a paper feeder comprising: a platen on which a sheet material is placed; a first roller provided on the platen side with respect to the sheet material; A second roller and a second roller, which are provided to be able to move up and down above the rollers, and which can move the sheet material in a predetermined direction while sandwiching the sheet material together with the first roller when in the lowered state. Attached to the second roller, includes a mounting member that moves in a predetermined manner in conjunction with the elevation of the second roller, and a plate provided in the vicinity of the second roller, the plate is a specific plate of the plate In the position, a notch is formed, and the specific position is in a state where the second roller is opposed to the first roller,
The mounting member can be moved in the predetermined mode through the cutout portion, and in a state where the second roller is not opposed to the first roller, the mounting member is moved by the plate in the predetermined mode. It is characterized in that movement is inhibited.

Accordingly, when the second roller is not opposed to the first roller, the movement of the mounting member is hindered, and the elevating operation of the second roller in conjunction therewith is also hindered. For this reason, the state of the second roller is not changed from the ascending state to the descending state when the second roller is not opposed to the first roller.

Accordingly, the sheet material is successfully sandwiched between the first and second rollers, and one of the rollers is
It is also possible to avoid a situation in which the sheet material pokes into a portion that is not lined with the other roller.

Further, in the paper feeder according to the present invention, the second roller is composed of a roller group including one or a plurality of the second rollers, and the second roller is provided with the first roller. Together with a first state in which the sheet material can be held by sandwiching the sheet material, or a second state in which the sheet material is released from the first roller and released from the first state. It can further include state control means, the state control means has one operation unit, by operating the one operation unit,
It is preferable that the state of the second roller can be changed independently for each roller group.

Thus, the states of the plurality of second rollers can be changed step by step with one operating section.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cutting plotter according to one embodiment of the present invention will be described below. FIG.
1 is a perspective view of a cutting plotter according to the present embodiment.

In the cutting plotter 1, the sheet material 9
0 is a target for paper feeding. The cutting plotter 1 mainly includes a main body 40 and main body support portions 41 and 42 that support the main body 40.

In the cutting plotter 1, a platen 5
A plurality of grit rollers (grit rollers 3a to 3c, which will be described later, omitted in FIG. 1) are located on one, and a sheet material 90 is located on the grit roller. A plurality of pinch rollers 2a and 2c are located on the sheet material 90.

As will be described later, in the cutting plotter 1 of the present embodiment, three pinch rollers 2a,
2b, 2c and three grit rollers 3a, 3b, 3
c is provided. The pinch roller 2b is arranged between the pinch rollers 2a and 2c. Three
Each of the pinch rollers 2a to 2c is
It is arranged so as to oppose the grit rollers 3a to 3c with respect to 0. The sheet material 90 is held at three points by being pinched from above and below by the pinch rollers 2a to 2c and the grit rollers 3a to 3c.

The cutting plotter 1 is provided with a printer head 50 above the sheet material 90. The printer head 50 includes an ink head, nozzles, and the like. Further, the printer head 50 is supported by the rail 6 and can move in the double arrow T direction with respect to the sheet material 90 along the rail 6. The double arrow T direction is a direction perpendicular to the double arrow R direction. The cutting plotter 1 also includes a cutter (not shown). The cutter can also move in the double arrow T direction with respect to the sheet material 90, similarly to the printer head 50. Thus, the sheet material 90 is two-dimensionally printed with an image or cut in accordance with a predetermined pattern in the cutting plotter 1.

In the cutting plotter 1, the sheet material 9
0 is the pinch rollers 2a to 2c and the grit rollers 3a to 3
c, the grit rollers 3a to 3a
By rotating c appropriately, the sheet material 90 is sent out or rewound in the direction of the double arrow R.

The pinch rollers 2a to 2c hold the sheet material 90 together with the grit rollers 3a to 3c, and the pinch rollers 2a to 2c separate from the grit rollers 3a to 3c.
Can be released. In this specification, the state in which the sheet material 90 is sandwiched is referred to as “the state in which the sheet material 90 is set”, and the state in which the sheet material 90 is released is referred to as “the state in which the sheet material 90 is free”.

On the upper surface of the main body support portion 41, a paper pinching lever 9 for changing the state of the pinch rollers 2a to 2c is provided. As shown in Table 1, the paper pinch lever 9 is operated in three stages of “Stage 1” to “Stage 3”. "Stage 1"
Then, all of the pinch rollers 2a to 2c are
State in which 0 is set (in Table 1, described as "set")
To be. In “Stage 2”, the pinch rollers 2a, 2b
Is in a free state (described as “free” in Table 1), and the pinch roller 2 c is
0 is set. In “Stage 3”, all of the pinch rollers 2a to 2c are in a state where the sheet material 90 is free.

[0023]

[Table 1]

Next, the internal structure of the main body 40 will be described with reference to FIG.
This will be described with reference to FIG. FIG. 2 shows the grit rollers 3a to 3c provided in the main body 40, and the grit rollers 3a to 3c.
It is a rear view of the roll shaft 4 which supports 3c, and the lever holding plate 20. Platen 51 of body 40
(See FIG. 1) A plate frame 45 is provided inside, and the roll shaft 4 is provided below the platen 51 via a bearing. Grit rollers 3a to 3c are mounted on the roll shaft 4. The plate frame 45 is provided with a suction fan 45a.

A lever holding plate 20 is provided above the roll shaft 4 and behind the rail 6 (see FIG. 1). The lever holding plate 20 has a recess 2
Three concave portions 0a to 20c are formed. The recesses 20a to 20c are formed at positions corresponding to the grit rollers 3a to 3c, respectively, in the double arrow T direction (see FIG. 1).

When the position of the pinch roller 2b is shifted in the left-right direction to become 2bx shown by a broken line, the horizontal portion 16b (see FIG. 3) attached to the pinch roller 2b also becomes 16bx shown by a broken line. . In this case, when the pinch roller 2b is at 2bx, the pinch roller 2b cannot be set to a state where a sheet material is set. Only after moving in the direction of arrow P to the position 2b, the pinch roller 2b
Can set the sheet material. This is because when the horizontal portion 16b is at the position indicated by 16bx, the horizontal portion 16b hits the lever holding play 20 and cannot move upward sufficiently,
Accordingly, the pinch roller 2b cannot move downward and cannot stop at the lower stop position as shown in FIG.

Next, in the cutting plotter 1,
How the pinch rollers 2a to 2c are attached will be described.

FIGS. 3 and 4 show an assembly structure of a pinch roller in the cutting plotter 1. FIG. FIGS. 3 and 4 are perspective views of an assembly of the pinch rollers in the cutting plotter 1. FIG. 3 and 4, the pinch rollers 2a to 2c are shown as the pinch rollers 2 for convenience.

3 and 4, reference numeral 11 denotes a frame body, and substantially L-shaped side portions 11a and 11b are integrally formed by being connected to upper and lower portions 11c and 11d provided at different levels. ing. In the frame 11, a support portion 13 having a pinch roller 2 pivotally supported at the tip is rotatably mounted around a support shaft 14, and is disposed above the rear end side of the support portion 13. By rotating the cam 7, the stop position of the pinch roller 2 can be changed up and down.

This will be described in more detail with reference to FIG. FIG. 5 is an exploded perspective view of components housed in the frame 11.

The support portion 13 has a cam receiving portion 16 which is a crank-shaped plate-like body formed on the rear side. Cam receiving part 1
6 is an inclined portion 16a gradually rising upward,
6a and a horizontal portion 16b extending horizontally from the top.
The lower end edge of the cam receiving portion 16 is connected to the spring bodies 18a, 18a.
The locking portions 17a and 17b for locking the lower end of the b.

The shaft 19 is provided to lock the upper ends of the spring bodies 18a and 18b. Both ends of the shaft 19 are respectively penetrated into upper portions of the side surfaces 11a and 11b of the frame body 11, so that the shaft 19 is fixed and supports the upper ends of the spring bodies 18a and 18b. Therefore, the support portion 13 is urged upward with the support shaft 14 as a fulcrum at the rear side by the elasticity of the spring bodies 18a and 18b, and is urged downward at the front side (including the pinch roller 2).

The cam 7 for moving the support portion 13 up and down is formed of a substantially fan-shaped plate-like small piece.
It has. A hole having a square cross section is formed in the shaft fitting portion 70, and the shaft 10 having the same square cross section as the hole is fitted into the hole.

The cam 7 is disposed between the spring bodies 18a and 18b in a rotatable state while being inserted around the shaft 10 as an axis. In the state shown in FIG. 3, the cam receiving portion 16 is pressed downward. Thus, in the state shown in FIG. 3, the stop position of the pinch roller 2 is on the upper side. The shaft 10 is provided inside the main body 40 in parallel with the rail 6. Further, the shaft 10 is stopped after being rotated by a predetermined angle according to the operation stage of the paper pinch lever 9 described above.

Then, from the state shown in FIG.
When the cam 7 rotates 90 ° in the direction of arrow K with the rotation of 0, the state shown in FIG. 4 is obtained. In the state shown in FIG. 4, the downward pressing of the cam receiving portion 16 by the cam 7 is released. Thereby, in the state shown in FIG.
The stop position of the pinch roller 2 is on the lower side.

The shaft 21 is provided for receiving the pinch roller 2. Both ends of the shaft 21 are fixed to shaft holes 22a and 22b formed on the distal end side of the support portion 13,
As a result, the pinch roller 2 is positioned in the notch 23 of the support 13. The magnet 24 is provided on the upper rear end of the notch 23. Magnet 2
The position of the pinch roller 2 (the pinch rollers 2 a to 2 c) is provided for detection by providing the position 4. The slide grooves 25 are grooves provided on both sides of the frame body 11 so as to face up and down. When the slide groove 25 is engaged with a rail (not shown), the assembled body of the pinch rollers is slid along the rail.

The pinch roller assembly shown in FIG. 3 or FIG. 4 is provided for each of the pinch rollers 2a to 2c. That is, the cam 7 and the shaft fitting portion 7
0 is provided for each of the pinch rollers 2a to 2c. Here, for convenience, the pinch roller 2
The cam 7 and the shaft fitting portion 70 provided for each of a to 2c are called cams 7a to 7c and shaft fitting portions 70a to 70c, respectively. As understood from the description with reference to FIGS. 3 and 4, each stop position (upper side or lower side) of the pinch rollers 2 a to 2 c is a cam corresponding to the stop position after the rotation of the shaft 10. It is changed depending on the stop position after rotation of 7a to 7c.

With respect to the stop positions of the pinch rollers 2a to 2c, the upper side corresponds to a state where the sheet material 90 is free, and the lower side corresponds to a state where the sheet material 90 is set.

Each assembled body of the pinch rollers 2a to 2c is
The pinch rollers 2a to 2c are respectively installed in the main body 40 so as to be located directly above the grit rollers 3a to 3c (see FIG. 2).

The recess 20 of the lever holding plate 20
Reference numerals a to 20c (see FIG. 2) are provided corresponding to rear portions of the frame 11 in each of the assembled bodies of the pinch rollers 2a to 2c. Specifically, the recesses 20a to 20c are
Is provided so that the rear portion is located inside the concave portions 20a to 20c. Thereby, the pinch rollers 2a to
Each assembly 2c is positioned so that the pinch rollers 2a to 2c are located directly above the grit rollers 3a to 3c. In other words, by providing the lever holding plate 20, the pinch rollers 2a to 2c are arranged other than directly above the grit rollers 3a to 3c, and the situation in which the sheet material 90 is damaged by being stopped below is surely prevented. Can be avoided.

As described with reference to Table 1, in the cutting plotter 1, the states of the pinch rollers 2a to 2c can be selectively changed in accordance with the operation stage of the paper pinching lever 9. Here, a mechanism for changing the state of the pinch rollers 2a to 2c in the cutting plotter 1 will be described in more detail.

FIG. 6 shows a shaft 10 and the shaft 1.
FIG. 7 is a plan view of cams 7a to 7c into which 0 is fitted. The cams 7a to 7c have shaft fitting portions 70a to 70c, respectively.
It has. The cams 7a to 7c are provided corresponding to the pinch rollers 2a to 2c, respectively.

The tips of the cams 7a to 7c protrude from the shaft 10, respectively. The cams 7a and 7b are
The directions in which the tips of the cams 7c protrude are the same, but the directions in which the tips of the cams 7c protrude are different from those of the cams 7a and 7b. Specifically, the cams 7a to 7c all have the same structure. The cams 7a to 7c are all mounted on the shaft 10. However, cam 7
c is attached to the cams 7a and 7b in a state of being rotated by 90 ° in the rotation direction K of the shaft 10. Thereby, the cams 7a and 7b and the cam 7c
The manner in which the cam receiving portion 16b is pressed against the stationary position of the shaft 10 is different. Due to the difference in the pressing mode, the difference in the state of the pinch rollers 2a to 2c shown in Table 1 occurs.

Here, the difference in the state of the pinch rollers 2a to 2c with respect to the rest position of the shaft 10 will be described more specifically with reference to FIGS. 7 to 9 are diagrams schematically showing the positional relationship between the assembly of the pinch rollers and the grit roller. In each of FIGS. 7 to 9, FIG.
The positional relationship between the pinch roller 2a and the grit roller 3a is shown, and (B) shows the positional relationship between the pinch roller 2c and the grit roller 3c when the shaft 10 is in the same state as in each of FIGS. The positional relationship between the pinch roller 2b and the grit roller 3b is considered to be the same as the positional relationship between the pinch roller 2a and the grit roller 3b. In each of the drawings, the arrow K indicates the rotation direction of the shaft 10.

First, referring to FIG. 7A, the cam 7a
Presses the cam receiving portion 16 downward at the tip in the rotation direction K. As a result, the pinch roller 2a stops at the upper position. On the other hand, referring to FIG. 7B, cam 7c is stopped in a state where cam 7a shown in FIG. The cam 7c presses the cam receiving portion 16 downward at the rear end in the rotation direction K. Thus, the pinch roller 2c also stops at the upper position, similarly to the pinch roller 2a in FIG. That is, the sheet material 90 is in a free state in any of the states shown in FIGS. 7A and 7B.

That is, in FIG. 7, the pinch rollers 2a, 2a
In each case c, the sheet material 90 is in a free state. Therefore, in the state shown in FIG.
Are not pinched by a pinch roller or a grit roller in the cutting plotter 1. In addition,
This state corresponds to the state where the paper pinch lever 9 is operated to “stage 3” (see Table 1).

Next, referring to FIG.
Is stopped in a state where the cam 7a shown in FIG. And FIG.
The cam 7a in (A) presses the cam receiving portion 16 downward at the rear end in the rotation direction K. As a result, the pinch roller 2a stops at the upper position.

On the other hand, referring to FIG.
Means that the cam 7a shown in FIG.
It stops at 0 °. And the cam 7c
Does not press the cam receiving portion 16. As a result, the pinch roller 2c stops at the lower position.

That is, in FIG. 8A, the sheet material 90 is in a free state, and in FIG. 8B, the sheet material 90 is in a set state. That is, in the state shown in FIG. 8, the sheet material 90 is placed on the cutting plotter 1 on one side in the double-headed arrow T direction (the pinch roller 2c).
(See FIG. 1). Note that this state corresponds to the state where the paper pinch lever 9 is operated to “stage 2” (see Table 1).

Next, referring to FIG. 9A, the cam 7a
Is stopped in a state where the cam 7a shown in FIG. Referring to FIG. 9B, cam 7c is stopped in a state where cam 7a shown in FIG. In FIG. 9, neither the cam 7a nor the cam 7c presses the cam receiving portion 16. Thus, the pinch rollers 2a and 2c are stopped at the lower position.

That is, in FIG. 9, the pinch rollers 2a, 2
c shows a state in which the sheet material 90 is set. Accordingly, in the state shown in FIG. 9, the sheet material 90 is held at three points on the cutting plotter 1. Note that this state corresponds to the state where the paper pinching lever 9 is operated in “stage 1” (see Table 1).

As described above, in the cutting plotter 1, the grit rollers 3a to 3c and the pinch rollers 2
According to a to 2c, the sheet material 90 is held by being sandwiched at three points in the double arrow T direction.

When setting the sheet material 90, the cutting plotter 1 first sets only the pinch roller 2c to the state where the sheet material 90 is sandwiched (step 2 in Table 1), and then sets the pinch rollers 2a and 2b. , The sheet material 90 can be held (step 1 in Table 1). That is, instead of suddenly holding the sheet material 90 at three points, first,
After holding the sheet material 90 at one point, the sheet material 9 is held at three points.
0 can be pinched.

When the sheet material 90 is set in the cutting plotter 1, the sheet material 90 is first clamped at one point, and after work such as preventing wrinkles on the sheet material 90 is performed, three points are set. With this, the sheet material 90 can be held. That is, the cutting plotter 1 can set the sheet material 90 so as not to be wrinkled even if only one worker is used.

In the cutting plotter 1, the sheet material 90 can be set by operating only one position of the paper pinching lever 9. That is, the sheet material 9
When setting 0, no complicated operation is required.

In the present embodiment described above, the first rollers provided on the platen side with respect to the sheet material are constituted by the grit rollers 3a to 3c. Further, the pinch rollers 2a to 2c are provided so as to be able to move up and down above the first roller, and when the sheet is in the down state, the sheet is moved in a predetermined direction while sandwiching the sheet with the first roller. A possible second roller is provided.

As shown in FIGS. 3 and 4, in the present embodiment, the recess 2 is located at a position facing the grit rollers 3a to 3c.
0a to 20c are provided. Therefore, the recess 20a
The cam receiving portion 16 attached to the pinch roller 2a
When the horizontal portion 16b enters, the support portion 13 is in a rotatable state.

That is, in the present embodiment described above,
Lever holding plate 2 provided with concave portions 20a to 20c
0 constitutes a positioning member for positioning the second roller so as to face the first roller. The recesses 20a to 20c are provided at the rear portion of the frame 11 (the horizontal portion 16 of the cam receiving portion 16) of each assembly of the pinch rollers 2a to 2c.
In order to respond to b), the lever holding plate 20 can position the pinch rollers 2a to 2c so as to face the grit rollers 3a to 3c. That is, the pinch roller 2
a to 2c, respectively,
An attachment member is attached to the second roller and moves in a predetermined manner in conjunction with the elevation of the second roller. The recesses 20a to 20c form notches formed at specific positions on the plate.

As described with reference to Table 1 and the like, the stop positions of the pinch rollers 2a to 2c are
a and 2b and the pinch roller 2c can be changed separately.
That is, the pinch rollers 2a and 2b can be considered as a first roller group, and the pinch roller 2c can be considered as a second roller group.

In this embodiment, the shaft 10
Stops at different rotational positions, as described with reference to FIGS. 7 to 9, according to the operation stage of the paper pinch lever 9, and
The cams 7a to 7a to 7
The rotational position at which 7c stops is determined. In the present embodiment, a state control means capable of causing the plurality of second rollers to assume the first state or the second state by the paper pinching lever 9, the shaft 10, and the cams 7a to 7c is configured. Have been. For the second roller, the first state is a state in which the sheet material can be held by sandwiching the sheet material together with the first roller, and the second state is a first state more than the first state. And release the holding of the sheet material. And the paper pinch lever 9
Constitutes one operation unit in the state control means.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cutting plotter according to an embodiment of the present invention.

FIG. 2 is a plan view of a grit roller provided in a main body of the cutting plotter of FIG. 1, a rail supporting the grit roller, and a lever holding plate.

FIG. 3 is a perspective view of an assembly of a pinch roller in the cutting plotter of FIG. 1;

FIG. 4 is a perspective view of an assembly of a pinch roller in the cutting plotter of FIG. 1;

FIG. 5 is an exploded perspective view of components housed in the frame body of FIG. 3;

FIG. 6 is a plan view of a shaft and a cam fitted with the shaft.

7 is a diagram schematically showing a positional relationship between an assembly of a pinch roller and a grit roller in the cutting plotter of FIG.

8 is a diagram schematically showing a positional relationship between an assembly of a pinch roller and a grit roller in the cutting plotter of FIG.

9 is a diagram schematically showing a positional relationship between an assembly of a pinch roller and a grit roller in the cutting plotter of FIG.

FIG. 10 is a perspective view of a cutting plotter which is an example of a conventional paper feeding device.

FIG. 11 is a view showing an assembling structure of a pinch roller in the cutting plotter of FIG.

FIG. 12 is a diagram showing an assembling structure of a pinch roller in the cutting plotter of FIG.

[Explanation of symbols]

1 cutting plotter, 2a-2c pinch roller, 3a-3c grit roller, 7a-7c cam,
9 Paper pinching lever, 10 shaft, 70 shaft fitting part.

Claims (2)

[Claims] A platen on which a sheet material is placed; a first roller provided on the platen side with respect to the sheet material; and a vertically movable member provided above the first roller. A second roller capable of moving the sheet material in a predetermined direction while sandwiching the sheet material together with the first roller, attached to the second roller, and interlocked with the elevation of the second roller And a mounting member that moves in a predetermined manner, and a plate provided near the second roller, wherein the plate has a cutout formed at a specific position of the plate, The position is such that, in a state where the second roller is opposed to the first roller, the mounting member can move in the predetermined mode via the cutout portion, and the second roller is moved to the first roller. Facing the roller In a state where no, the attachment member is inhibited to move in the predetermined manner by the plate, the paper feeding device. 2. The sheet material according to claim 2, wherein the second roller includes a roller group including one or a plurality of the second rollers, and the sheet material is sandwiched between the second roller and the first roller. Further comprising state control means capable of holding a first state in which the sheet material can be held, or a second state in which the holding of the sheet material is released by separating from the first roller more than the first state. The state control means has one operation unit, and by operating the one operation unit, the state of the second roller can be changed independently for each roller group. The paper feeder according to claim 1.