JP2004010273A - Sheet feeding device and recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent non-feeding of thick paper and tip turned-up of thin paper in a feeding device comprising a small diameter roller, for separating and feeding a sheet material one by one from a plurality of sheet materials inclined and stacked on a sheet material stacking portion; and to reduce size of the device. <P>SOLUTION: This device includes the sheet stacking portion for inclining and stacking sheet materials, a feeding roller 11 for feeding the sheet materials 20 stacked on the the sheet material stacking portion, a separating roller 12 abutting against the sheet materials fed from the feeding roller 11, for feeding the sheet materials 20 one by one, a separating roller holder 21 for holding the separating roller 12, and a preliminary regulating holder 22 for regulating number of in-coming sheet materials for the separating roller 12, and it has an attitude control rib 22a for controlling attitude of the sheet materials 20 fed toward a separating means. The attitude control rib 22a is formed at a position where it does not interfere with the feeding roller 11 and the separating roller 12 in the sheet material width directions of the feeding roller 11 and the separating roller 12, at a level corresponding with a sheet material feeding surface of the feeding roller 11 or a level so as to bend into the sheet material feeding surface of the feeding roller 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet material feeding device that takes out and conveys sheet materials one by one from a plurality of stacked sheet materials.
[0002]
[Prior art]
As a sheet material feeding device equipped with a sheet material separation mechanism, a friction plate method that includes a friction plate and separates by a difference in friction coefficient between the feeding roller and the sheet material and the friction plate, or a torque limiter in a separation roller, There is a retard roller method in which a sheet material is separated by a resistance force generated by a torque limiter and a friction coefficient of a separation roller.
[0003]
FIG. 11 is a schematic sectional view of a separating portion of a feeding device having a conventional configuration. In the feeding device having the above-described separation method, the sheet material 120 is pressed against the feeding roller 111 by the pressing force of the pressure plate 116 from the sheet material leading end reference portion 115 a that is inclined and stacked. The sheet is conveyed to the separation unit 112 through the front-stage regulating portion 122a of the front-stage regulating holder 122 provided on the upstream side in the sheet material conveying direction.
[0004]
Since these feeding devices have a configuration in which the sheet material 120 is inclinedly stacked, the sheet material that has reached the separating means 112 has a certain angle α with respect to the separating means. The front-stage regulating section 122a controls the angle not to exceed a predetermined angle.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional sheet feeding apparatus, the front regulation section 122a has a predetermined gap with respect to the feeding roller 111 in a side view as shown in FIG. The angle α between the sheet material 120 and the separating means 112 may be partially increased in the width direction of the sheet material only by controlling the angle α of the sheet material 120 by the 122a, and especially the thick paper or the leading edge may be downward. In some cases, the leading end of the sheet material abuts against the separating means 112 due to the curled sheet material or the like, and the sheet material is not fed. Further, in the case of thin paper, the leading end of the sheet material at the separation unit contact portion may be turned up.
[0006]
As means for suppressing the occurrence of non-feeding, it is effective to increase the outer diameter of the feeding roller 111 or to increase the diameter of the separating roller when the separating means 112 is a separating roller method. The configuration hinders miniaturization of the feeding device and the recording device.
[0007]
As a means for suppressing the occurrence of non-feeding, it is effective to adjust the angle of the pressure plate 116 in a direction in which the sheet is conveyed to the separation unit so as to lie down. This hinders downsizing of the device and the recording device.
[0008]
In view of the above, the present invention provides a sheet feeding apparatus capable of preventing non-feeding of thick paper and turning over of a thin paper in a feeding apparatus having a small-diameter roller, and achieving downsizing of the apparatus, and a recording apparatus including the same. It is intended to provide a device.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, a typical configuration of a sheet material feeding device and a recording device according to the present invention includes a sheet material stacking unit that tilts and stacks a sheet material, and a sheet material stacked on the sheet material stacking unit. Feeding means for feeding, separating means for contacting the sheet material fed by the feeding means and feeding the sheet material one sheet at a time, separating means holding member for holding the separating means, A pre-stage regulating member for restricting the number of sheet materials entering the separating means; and a sheet material feeding device for separating and conveying the sheet materials one by one from a plurality of sheet materials obliquely stacked on the sheet material stacking section. A posture control member for controlling the posture of the sheet material conveyed toward the separation means, wherein the posture control member is located at a position which does not interfere with the feeding means and the separation means in the width direction of the sheet material. , Said pay Characterized in that it is formed at a height biting into the sheet material conveying surface height or the feeding means for matching to the sheet material conveying surface means.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
[First embodiment]
A first embodiment of a sheet material feeding device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a recording apparatus provided with a sheet material feeding device according to the present embodiment, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG.
[0011]
The recording device A includes a sheet material feeding device 1, a recording unit 3, a discharge roller 31, and a spur 32. The sheet material fed from the sheet material feeding device 1 is nipped by the pinch roller 29 urged by the pinch roller holder 25 to the conveyance roller 30 and the conveyance roller 30, and is fed to the recording unit 3. The sheet material fed to the recording unit 3 is ejected with ink by nozzles (not shown) of the recording head 4 to perform image recording. The sheet material on which image recording has been performed by the recording unit 3 is discharged out of the recording apparatus A by a discharge roller 31 and a spur 32 serving as discharge means.
[0012]
The sheet material feeding device 1 includes a sheet material stacking unit, a feeding / separating unit 2, and a double feeding prevention unit. The sheet material feeding device 1 is designed on the assumption that it is used integrally with another device such as a recording device, and the sheet material feeding device itself does not have a driving source. Therefore, the sheet material feeding device 1 is a driven device that is driven by being transmitted from, for example, a recording device (hereinafter, abbreviated as a main body).
[0013]
The sheet material stacking section includes a base 15, a pressure plate 16, and a side guide 18. The sheet material set in the sheet material stacking section is biased downward by gravity because the sheet material is inclined and stacked with respect to the horizontal plane of the recording apparatus. 15a. The sheet material leading end reference portion 15a has a rib shape in order to reduce a load during feeding.
[0014]
The pressure plate 16 is a pressure plate that applies a conveying force to the sheet material. The pressure plate 16 is urged to rotate in the direction of the feed roller 11 by a pressure plate spring 17, and a cam (not shown) provided on the control gear 24 presses the pressure plate 16 to press the pressure plate 16. The sheet material is forcibly rotated and moved in a direction away from the feeding roller 11, and the sheet material feeding operation is performed by the biasing / separating operation.
[0015]
In this embodiment, the angle formed between the sheet material loading surface of the pressure plate 16 and the recording device installation surface is about 70 degrees, thereby realizing the miniaturization of the recording device when the sheet material 20 is inclinedly loaded.
[0016]
The pressure plate 16 is fixed at a predetermined position in a direction away from the feeding roller 11 in a so-called standby state in which the sheet feeding device 1 is not conveying the sheet material. At such a predetermined position, a sufficient gap is provided between the feeding roller 11 and the pressure plate 16 for stacking a plurality of sheet materials. The pressure plate 16 has a sheet material transport reference portion 16a protruding from a part of the pressure plate 16, and the sheet material transport reference portion 16a serves as a reference for the sheet material side.
[0017]
The side guide 18 is slidably mounted on the pressure plate 16, and can be engaged with a latch groove formed on the pressure plate 16 so as to prevent the side guide 18 from being accidentally moved. Therefore, when the side guide 18 is moved, the latch is released by operating the lever portion provided on the side guide 18 and the side guide 18 is moved.
[0018]
After a plurality of sheet materials are placed in the gap between the feed roller 11 and the pressure plate 16 along the sheet material transport reference portion 16a, the side guide 18 is moved in the direction of arrow C in FIG. Side of the sheet material on the opposite side to the width of the sheet material. Thereby, the set stacked sheet material bundle is restricted from moving in a direction (sheet material width direction) orthogonal to the sheet material conveying direction Y, and can be adapted to an arbitrary sheet material width within a predetermined width range. Different sheet materials can be stably conveyed.
[0019]
Next, the configuration of the feed / separation unit 2 will be described. By the operation of the pressure plate described above, the placed sheet material 20 is pressed by the feed roller 11. The feed roller 11 is driven to rotate at the same time as the sheet material 20 is pressed, and the uppermost sheet material of the stacked sheet materials in contact with the feed roller 11 is conveyed by the frictional force of the feed roller 11. Since the feed roller 11 conveys the sheet material by a frictional force, it is preferable that the feed roller 11 be formed of rubber having a high friction coefficient such as EPDM, urethane foam, or the like.
[0020]
Here, since the frictional force between the feed roller 11 and the uppermost sheet material is often larger than the frictional force between the uppermost sheet material and the sheet material immediately below the uppermost sheet material, it is necessary to convey only the uppermost sheet material. There are many. However, for example, when there is the influence of burrs on the sheet material edge generated when cutting the sheet material, when there is sticking between the sheet materials due to static electricity, or when using a sheet material with a very large surface friction coefficient, In some cases, a plurality of sheet materials may be pulled out by the feed roller 11 at one time.
[0021]
In such a case, the sheet is separated into only the uppermost sheet material by a separation roller 12 which is a separation unit having a torque limiter. The separation roller 12 is pressed by the feed roller 11 such that the separation roller 12 comes into contact with the sheet material downstream from the point where the sheet material first comes into contact with the sheet roller.
[0022]
Here, the configuration of the separation roller 12 will be described with reference to FIGS. The separation roller 12 is fixedly attached to the clutch cylinder 12a, and a clutch shaft 12b is rotatably housed in the clutch cylinder 12a. A clutch spring 12c is wound around the clutch shaft 12b, and one of the winding ends of the clutch spring 12c is engaged with the clutch cylinder 12a.
[0023]
With the above configuration, when the separation roller 12 and the clutch cylinder 12a are rotated in the direction of the arrow in FIG. 5 while the clutch shaft 12b is fixed, the clutch spring 12c wound around the clutch shaft 12b is released from the clutch shaft 12b. When the separation roller 12 and the clutch cylinder 12a rotate by a predetermined angle, the clutch shaft 12b and the clutch spring 12c relatively slide to maintain a predetermined torque.
[0024]
The surface of the separation roller 12 is made of rubber, urethane foam, or the like so that the surface of the separation roller 12 has the same coefficient of friction as the feeding roller 11. The separation roller 12 is rotatably supported by a separation roller holder 21 serving as a separation means holding member via a clutch cylinder 12a and a clutch shaft 12b, and is pressed against the feeding roller 11 by a separation roller spring 26.
[0025]
With such a configuration, when the sheet material does not enter between the feeding roller 11 and the separation roller 12, the separation roller 12 is driven to rotate with the rotation of the feeding roller 11.
[0026]
When one sheet material enters between the feeding roller 11 and the separation roller 12, the frictional force between the feeding roller 11 and the sheet material is larger than that between the separation roller 12 that is driven by a predetermined torque and the sheet material. Therefore, the sheet material is conveyed while the separation roller 12 is driven. However, when two sheet materials enter between the feeding roller 11 and the separation roller 12, the frictional force between the feeding roller 11 and the sheet material on the side of the feeding roller 11 is increased by the friction between the sheet materials. Since the frictional force is larger than the force and the frictional force between the sheet material on the separation roller 12 side and the separation roller 12 is larger than the frictional force between the sheet materials, slippage occurs between the sheet materials. As a result, only the sheet material on the side of the feed roller 11 is conveyed, and the sheet material on the side of the separation roller 12 stops at the same place as the separation roller 12 does not rotate and is not conveyed.
[0027]
Next, the configuration of the double feed prevention unit will be described. As described above, even if about two sheets enter the nip between the feed roller 11 and the separation roller 12, they can be separated. However, after a larger number of sheets have come in or two sheets have entered and only the sheet material on the feed roller 11 side has been conveyed, the next sheet material continues continuously with the sheet material remaining near the nip. When the sheet feeding is performed, there is a possibility that a so-called double feed in which a plurality of sheet materials are simultaneously conveyed occurs. In order to prevent this, a double feed prevention unit is provided.
[0028]
The double feed prevention unit has a return lever 13, and when the sheet material is set or in a recording standby state, the return lever 13 is caused to enter the sheet material conveyance path, so that the sheet material tip is inadvertently moved to the depth of the feeding device. Prevents intrusion.
[0029]
The return lever 13 is opened after the start of the feeding operation, and retracts from the sheet material conveyance path. The return lever 13 does not hinder the advance of the sheet material during feeding.
[0030]
When the separation operation is completed, the return lever 13 starts an operation of returning the sheet material in the separation nip by the action of a cam (not shown) provided on the control gear 24. At this time, the release cam 28 also causes the separation roller holder 21 including the separation roller 12 and the former-stage restriction holder 22 as the former-stage restriction member to move in the direction away from the feeding roller 11. The separating operation of the separation roller holder 21 and the former-stage regulating holder 22 allows the returning operation of the sheet material by the return lever 13 with a small force.
[0031]
When the return lever 13 that has completed the returning operation of the sheet material rotates once to a position where it is retracted from the sheet material conveyance path, and when it is confirmed that the rear end of the sheet material has been discharged from the sheet material feeding device 1, It is configured to return to the standby position again.
[0032]
Next, a conveying path of the sheet material until the fed sheet material reaches the separation unit will be described. FIG. 6 is a schematic cross-sectional view of the separation unit, and FIG. 7 is a diagram of the separation unit viewed from the sheet conveying path.
[0033]
As shown in FIG. 6, when the pressure plate 16 urged by the pressure plate spring 17 presses the sheet material 20 against the feed roller 11, the leading end of the sheet material 20 is firstly moved to the sheet material leading end reference portion 15a. From the position control rib 22a, which is a position control member provided on the front-stage regulating holder 22. A slope is provided near the sheet material entrance of the attitude control rib 22a so that the leading end of the sheet material can be easily moved to the separating portion.
[0034]
6, the outer diameter of the feed roller 11 and the height of the attitude control rib 22a match, so that the transport path L of the sheet material 20 appears to be closed. However, as shown in FIG. 7, since the feed roller 11 and the attitude control rib 22a are arranged apart from each other in the width direction of the sheet material 20, the sheet material 20 is separated by the thickness t of the sheet material. The paper is conveyed after being slightly curved so as to be convex toward the roller 12 side.
[0035]
When the feeding of the sheet material 20 is continued by the feeding roller 11 in this state, the leading end of the sheet material 20 reaches the cylindrical surface of the separation roller 12. At this time, on the downstream side in the sheet conveying direction of the portion where the back surface of the sheet 20 is supported by the posture control rib 22a, the leading end of the sheet reaches the cylindrical surface of the separation roller 12 along the solid line conveying path La shown in FIG. I do. On the other hand, in a region where the attitude control rib 22a is not provided, particularly, in a portion where the curvature of the central portion of the feeding roller 11 is maximized, the leading end of the sheet material is formed on the cylindrical surface of the separation roller 12 along the dashed conveyance path Lb shown in FIG. To reach.
[0036]
As described above, at both ends in the width direction of the sheet material without the attitude control rib 22a and the center in the width direction of the sheet material with the attitude control rib 22a, a partial angle is formed between the sheet material 20 and the cylindrical surface of the separation roller 12. There is an angle difference. However, since the attitude control rib 22a is always in contact with the back surface of the sheet material, the angle between the sheet material 20 and the separation roller 12 at a position where the attitude control rib 22a is not provided can be controlled to be substantially constant.
[0037]
In the case of the present embodiment, the outer diameter of the feed roller 11 is about 30 mm, and the outer diameter of the separation roller 12 is about 14 mm, which are small. It is possible to control the angle between the tangent line at the contact point between the sheet material 20 and the separation roller 12 and the sheet material 20 at the time of contact with the surface to about 30 degrees or less. Accordingly, the angle at which the leading end of the sheet material 20 contacts the cylindrical surface of the separation roller 12 can be reduced, and non-feeding of the sheet material can be prevented.
[0038]
Experimentally, if the angle between the tangent at the contact point between the sheet material 20 and the separation roller 12 and the sheet material 20 at a point in time when the leading end of the sheet material 20 hits the cylindrical surface of the separation roller 12 becomes 45 degrees or more, an error occurs. It is known that the feeding is likely to occur, and even in comparison with the result, it is found that the feeding device to which the present invention is applied is less likely to cause the non-feeding.
[0039]
In the present embodiment, the height of the attitude control rib 22a is adjusted to the outer diameter of the feed roller 11. However, the height of the rib that bites into the outer diameter of the feed roller 11 in side view is smaller than that of the feed roller 11. It may be provided.
[0040]
Further, the attitude control rib 22a may be formed so that the height thereof increases as the distance from the separation roller 12 in the sheet material width direction increases. This makes it possible to more reliably control the angle formed between the sheet material 20 and the separation roller 12 at a position where the attitude control rib 22a is not provided.
[0041]
Further, the same effect can be obtained even when the attitude control member is formed of a surface having a certain width.
[0042]
Further, in the present embodiment, the separating roller 12 having the torque limiter is used as the separating means. However, the present invention exerts a great effect also on the feeding device using the separating pad system using the friction piece as the separating means. Is possible.
[0043]
[Second embodiment]
Next, a second embodiment of the sheet feeding apparatus according to the present invention will be described with reference to the drawings. FIG. 8 is a schematic cross-sectional view of a separation unit of the sheet feeding apparatus according to the present embodiment, and FIG. 9 is a view of the separation unit as viewed from a sheet conveyance path. The same parts as those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted.
[0044]
In the present embodiment, a posture control plate 23 having flexible elasticity is provided in place of the posture control rib 22a of the first embodiment.
[0045]
Until the sheet material 20 reaches the pre-stage regulating holder 22, the attitude control plate 23 is in a position (position indicated by a solid line in FIG. 8) that completely prevents the sheet material from advancing.
[0046]
When the leading end of the sheet material 20 reaches the posture control plate 23 as the feeding operation proceeds, the posture control plate 23 moves to a position (a position indicated by a broken line in FIG. 8) retracted from the sheet material conveyance path due to its elasticity. In this state, the sheet material 20 receives a force for pushing up to the feed roller 11 due to the elasticity of the attitude control plate 23.
[0047]
As a result, similarly to the configuration of the first embodiment, the angle between the sheet material 20 and the separation roller 12 can be reduced, and the thick paper, the curled sheet material, and the like can be prevented from being non-feed. .
[0048]
Further, after the leading end of the sheet member 20 has passed through the separation portion, a weak urging force due to the elasticity of the attitude control plate 23 is only applied to the rear end of the sheet member 20, so that the resistance force applied to the sheet member 20 is minimized. It is possible to stay.
[0049]
[Third embodiment]
Next, a third embodiment of the sheet feeding apparatus according to the present invention will be described with reference to the drawings. FIG. 10 is a schematic cross-sectional view of the separation unit according to the present embodiment. The same parts as those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted.
[0050]
As shown in FIG. 10, the sheet feeding device according to the present embodiment uses an attitude control spring 34 instead of the elastic attitude control plate 23 having elasticity in the second embodiment to apply a very light pressure to the attitude control plate 35. Spring biased.
[0051]
The attitude control plate 35 is in a position (a position indicated by a solid line in FIG. 8) where the advance of the sheet material is completely prevented until the sheet material 20 reaches the preceding-stage regulating holder 22.
[0052]
When the leading end of the sheet material 20 reaches the posture control plate 35 as the feeding operation proceeds, the posture control plate 35 moves to a position retracted from the sheet material conveyance path by the elasticity of the posture control spring 34. In this state, the sheet material 20 receives a force to push the sheet material 20 toward the feeding roller 11 by the attitude control plate 35.
[0053]
As a result, similarly to the configuration of the first embodiment, the angle between the sheet material 20 and the separation roller 12 can be reduced, and the thick paper, the curled sheet material, and the like can be prevented from being non-feed. .
[0054]
Further, after the leading end of the sheet material 20 has passed through the separation portion, a weak urging force due to the elasticity of the attitude control plate 35 is only applied to the rear end of the sheet material 20, so that the resistance force applied to the sheet material 20 is minimized. It is possible to stay.
[0055]
With this configuration, the resistance force applied to the sheet material after the sheet material 20 has passed through the separation unit can be controlled by adjusting the spring force of the attitude control spring 34. Power can be kept to a minimum.
[0056]
【The invention's effect】
As described above, the posture control member for controlling the posture of the sheet material conveyed toward the separating unit is provided, and the posture control member includes a feeding unit in the sheet width direction of the feeding unit and the separating unit. The sheet was formed at a position that does not interfere with the separating unit at a height that matches the sheet conveying surface of the feeding unit or a height that cuts into the sheet conveying surface of the feeding unit.
[0057]
This makes it easy to control the angle formed between the leading end of the sheet material and the separating means when the sheet material reaches the separating means, thereby preventing the leading end of the sheet material from abutting on the separating means and causing non-feeding. Becomes possible. In addition, it is possible to prevent the leading end of the thin paper from being turned up by the separation unit. Further, even in the case where the feeding tray is set up, good feeding performance can be exhibited.
[0058]
In addition, since the front regulation member and the attitude control member are integrally formed, the number of components can be reduced, and the cost can be reduced.
[0059]
In addition, since the front-stage regulating member and the attitude control member are integrally formed and are configured to be independently movable with respect to the separation unit holding member, even if the sheet material is sandwiched in the front-stage regulating portion, it can be easily removed. This makes it possible to reduce the operating force of the return means using a return lever or the like. Further, even if a large amount of sheet material enters the pre-stage regulating portion and the pre-stage regulating member is forcibly moved, the influence on the separating portion can be cut off.
[0060]
In addition, since the front regulation member, the attitude control member, and the separation means holding member are integrally formed, the same effect can be obtained, and the number of components can be reduced, so that the cost can be reduced.
[0061]
Further, the posture control member is formed so that its height becomes higher as it is further away from the separation means in the width direction of the sheet material, so that the leading end of the sheet material can be more reliably prevented from hitting the separation means and not being fed. Becomes possible.
[0062]
Further, since the attitude control member is formed of the rib-shaped member, it is possible to prevent the sheet material from being non-feeded with a simple configuration.
[0063]
Further, since the attitude control member is formed of an elastic member, it is possible to prevent the sheet material from being non-sending with a simple configuration and to minimize the resistance force applied to the sheet material.
[0064]
Further, the feeding means is a rotating body having an outer diameter of 34 mm or less, and the separating means is a separating roller provided with a torque limiter. By setting the outer diameter of the separating roller to 25 mm or less, stable separating performance is obtained. It is possible to reduce the size of the device while securing the size.
[0065]
Further, since the separating means is a separation pad using a friction piece, the separating portion can be configured with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a top view illustrating the entirety of a recording apparatus including a sheet material feeding device according to a first embodiment.
FIG. 2 is a cross-sectional view of a recording apparatus including a sheet material feeding device.
FIG. 3 is a cross-sectional view of a recording apparatus provided with a sheet material feeding device.
FIG. 4 is a configuration perspective view of a separation roller.
FIG. 5 is a sectional view of a separation roller.
FIG. 6 is a schematic sectional view of a separation unit.
FIG. 7 is a diagram of the separating unit as viewed from a sheet conveying path.
FIG. 8 is a schematic sectional view of a separation unit according to a second embodiment.
FIG. 9 is a view of the separating unit as viewed from a sheet conveying path.
FIG. 10 is a schematic sectional view of a separation unit according to a third embodiment.
FIG. 11 is a schematic cross-sectional view of a separation section of a conventional sheet material feeding device.
[Explanation of symbols]
A: Recording devices L, La, Lb: Conveying path 1: Sheet material feeding device 2: Feeding / separating unit 3: Recording unit 4: Recording head 11: Feeding roller 12: Separating roller 12a: Clutch cylinder 12b: Clutch Shaft 12c Clutch spring 13 Return lever 15 Base 15a Sheet material tip reference portion 16 Pressure plate 16a Sheet material transport reference portion 17 Pressure plate spring 18 Side guide 20 Sheet material 21 Separation roller holder 22 Front regulation Holder 22a Attitude control rib 23 Attitude control plate 24 Control gear 25 Pinch roller holder 26 Separation roller spring 28 Release cam 29 Pinch roller 30 Transport roller 31 Discharge roller 32 Spur 34 Attitude control spring 35 Attitude control board

Claims (11)

A sheet material stacking section for inclinedly stacking the sheet material, feeding means for sending out the sheet material stacked on the sheet material loading section, and contacting the sheet material sent out by the feeding means, and A separating unit for feeding the sheets one by one, a separating unit holding member for holding the separating unit, and a former-stage regulating member for restricting the number of sheets of the sheet material entering the separating unit; and a sheet material stacking unit. In a sheet material feeding device that separates and conveys sheet materials one by one from a plurality of sheet materials that are stacked and tilted,
A posture control member that controls a posture of the sheet material conveyed toward the separation unit,
The attitude control member is located at a position not interfering with the feeding means and the separating means in the width direction of the sheet material, at a height corresponding to the sheet material conveying surface of the feeding means or the sheet material of the feeding means. A sheet material feeding device formed at a height that cuts into a conveying surface. 2. The sheet feeding apparatus according to claim 1, wherein the front regulation member and the attitude control member are formed integrally. 2. The sheet feeding device according to claim 1, wherein the front-stage regulating member and the posture control member are integrally formed, and are configured to be independently movable with respect to the separation unit holding member. 3. The sheet material feeding device according to claim 1, wherein the front-stage regulating member, the posture control member, and the separation unit holding member are integrally formed. The sheet material feeding device according to any one of claims 1 to 4, wherein a height of the posture control member increases as the position of the posture control member increases in a sheet material width direction. The sheet feeding device according to any one of claims 1 to 5, wherein the attitude control member is formed of a rib-shaped member. The sheet feeding device according to any one of claims 1 to 5, wherein the attitude control member is formed of an elastic member. The sheet feeding device according to any one of claims 1 to 7, wherein the feeding unit is a rotating body having an outer diameter of 34 mm or less. 9. The sheet feeding device according to claim 1, wherein the separation unit is a separation roller provided with a torque limiter, and an outer diameter of the separation roller is 25 mm or less. 10. 9. The sheet feeding apparatus according to claim 1, wherein the separation unit is a separation pad using a friction piece. A recording apparatus comprising the sheet feeding device according to any one of claims 1 to 10, wherein recording is performed on a sheet material fed from the sheet material feeding device.

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