JP4822002B2 - Automatic feeding device, recording device - Google Patents

Description

  The present invention relates to an automatic feeding apparatus that feeds a recording material pressed against an outer peripheral surface of a feeding roller into a recording apparatus by rotation of the feeding roller, and a recording apparatus including the automatic feeding apparatus.

  2. Description of the Related Art An automatic feeding device that is mounted on a recording device such as an ink jet printer and automatically feeds recording materials such as recording paper one by one toward recording execution means in the recording device is known. This automatic feeding device has a pressing means such as a hopper that presses the recording material stacked on a feeding cassette, a feeding tray, etc. from the bottom surface side and presses it against the outer peripheral surface of the feeding roller. Generally, the recording material pressed against the outer peripheral surface of the feeding roller is fed into the recording apparatus by the rotation of the feeding roller. In addition, the automatic feeding device separates the recording material to prevent feeding (multiple feeding) in a state where a plurality of recording materials are overlapped when the recording material is fed by rotation of a feeding roller. It is usual to have a means.

  This separation means presses the separation surface against the outer peripheral surface of the feeding roller, and when the recording material is sandwiched between the feeding roller and the separation surface, the separation means is placed on the contact surface between the outer peripheral surface of the feeding roller and the recording material. The friction coefficient and pressing force of the separation surface are set so that a friction force that is smaller than the generated friction force and larger than the friction force generated on the contact surface between the recording materials acts on the contact surface between the separation surface and the recording material. It is configured. In the separating means having such a configuration, when one recording material is sandwiched between the outer peripheral surface of the feeding roller and the separation surface, the contact surface between the outer peripheral surface of the feeding roller and the recording material. The recording material is fed with the rotation of the feeding roller by the frictional force. On the other hand, when two or more recording materials are sandwiched between the outer peripheral surface of the feeding roller and the separation surface, the recording material in contact with the outer peripheral surface of the feeding roller is fed by the rotation of the feeding roller. At the same time, the other recording material is locked by the frictional force of the contact surface between the separation surface and the recording material to prevent double feeding.

As a component constituting the separation surface of such separation means, for example, a separation pad having a predetermined friction resistance surface is known, and a retard roller supported by a predetermined driven rotational resistance is known (for example, , See Patent Document 1).
JP 2006-89221 A

  In general, an automatic feeding device that feeds a recording material pressed against an outer peripheral surface of a feeding roller into a recording apparatus by rotation of the feeding roller is generally a rubber material such as a synthetic rubber or the like on the outer peripheral surface of the feeding roller. It is formed with. Therefore, when the separation surface of the separation means such as the separation pad or the retard roller is pressed against the outer peripheral surface of the feeding roller, the feeding force causes the feeding surface to contact the outer peripheral surface of the feeding roller and the separation surface. The rubber material on the outer peripheral surface of the roller is deformed so as to be crushed. Therefore, if left in that state for a long period of time, the rubber material on the outer peripheral surface of the feed roller will not return to its original state while being deformed, and thereby the narrow pressure between the outer peripheral surface of the feed roller and the separation surface May become unstable and poor feeding may occur.

  In addition, a general automatic feeding apparatus has an opening serving as a recording material supply path from a feeding cassette, a feeding tray, or the like on the upstream side in the feeding direction of a feeding roller. The upstream side in the feeding direction of the outer peripheral surface of the feeding roller is exposed through the opening. Therefore, the upstream side in the feeding direction of the outer peripheral surface of the feeding roller may be directly exposed to so-called ink mist or ultraviolet rays through the opening, and the rubber material on the outer circumferential surface of the feeding roller deteriorates and feeds. There was a risk that defects would easily occur.

  Furthermore, a rubber material such as synthetic rubber may cause a so-called oil bleed phenomenon in which a very small amount of oil oozes from the surface over time. Therefore, for example, if the recording material is left in the feeding cassette or on the feeding tray for a long period of time, the feeding roller is applied to the recording material in contact with the outer peripheral surface of the feeding roller. There is a possibility that oil that oozes out from the rubber material constituting the outer peripheral surface of the oil adheres. The recording material with the oil adhered to the recording surface is bounced without ink penetrating at the portion where the oil adheres when recording is performed in the recording apparatus after feeding. As a result, the recording image quality deteriorates, and the ink in that portion is discharged without being completely dried, so that the ink may adhere to the user's hand or property.

The present invention has been made in view of such a situation, and the problem is that automatic recording is performed by feeding a recording material pressed against the outer peripheral surface of the feeding roller into the recording apparatus by rotation of the feeding roller. In the feeding device, when the recording on the recording material is not executed, the outer peripheral surface of the feeding roller is deformed or deteriorated, and the possibility of causing a feeding failure at the time of recording on the recording material is reduced. It is in.
Another object of the present invention is to perform recording on a recording material in an automatic feeding device that feeds the recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. This is to prevent oil or the like that oozes from the rubber material constituting the outer peripheral surface of the feeding roller from adhering to the recording material and becoming dirty.

  In order to achieve the above object, a first aspect of the present invention is an automatic feeding device that feeds a recording material pressed against an outer peripheral surface of a feeding roller into a recording device by rotation of the feeding roller. An automatic feeding device comprising a recording material separating means for separating the recording material in the vicinity thereof from the outer peripheral surface of the feeding roller.

  The recording material separating means can separate the recording material existing in the vicinity of the outer peripheral surface of the feeding roller. Therefore, according to the recording material separating means, the recording material in the vicinity of the outer peripheral surface of the feeding roller can be brought into a state of not contacting the outer peripheral surface of the feeding roller. That is, according to the automatic feeding device described in the first aspect of the present invention, the automatic feeding device feeds the recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. In the apparatus, when recording on the recording material is not being performed, the recording material in the vicinity of the outer peripheral surface of the feeding roller can be in a state of not contacting the outer peripheral surface of the feeding roller. As a result, when recording on the recording material is not executed, oil or the like that oozes from the rubber material constituting the outer peripheral surface of the feeding roller adheres to the recording material and becomes dirty. The effect that it can prevent is obtained.

  According to a second aspect of the present invention, in the automatic feeding device according to the first aspect described above, the recording material separating means is given a predetermined swinging resistance and swings on the rotation shaft of the feeding roller. The shaft is movably supported, and by rotating the feeding roller in reverse, it engages with the recording material while entering between the outer peripheral surface of the feeding roller and the recording material in the vicinity thereof. The recording material is oscillated to a oscillating position for displacing the recording material in the separation direction, and the feeding roller is rotated in the forward direction, thereby retracting from between the outer peripheral surface of the feeding roller and the recording material in the vicinity thereof. An automatic feeding device characterized by having a recording material separating oscillating body that oscillates to an oscillating position.

  Here, the rotation direction of the feeding roller is the forward rotation when the recording material pressed against the outer peripheral surface of the feeding roller is fed into the recording apparatus, and the same applies hereinafter.

  The recording material separating oscillating body is provided with a predetermined oscillating resistance and is pivotally supported on the rotating shaft of the feeding roller so as to oscillate in the rotating direction by rotating the feeding roller. In addition, if the rotation is stopped, it can be stopped at the swing position. Due to the forward rotation of the feeding roller, the recording material separating and swinging body swings to a swinging position for retracting from between the outer peripheral surface of the feeding roller and the recording material in the vicinity thereof. As a result, the recording material can be fed by the forward rotation of the feeding roller without being obstructed by the recording material separation oscillating body.

  For example, after the recording on the recording material fed into the recording apparatus by the automatic feeding apparatus is completed, the feeding roller is rotated in the reverse direction. Due to the reverse rotation of the feeding roller, the recording material separating oscillating body engages with the recording material while entering between the outer peripheral surface of the feeding roller and the recording material in the vicinity thereof, and The recording material is swung to a rocking position where the recording material is displaced in the separation direction. Therefore, after the recording on the recording material is completed, the recording material in the vicinity thereof can be separated from the outer peripheral surface of the feeding roller by rotating the feeding roller in the reverse direction.

  At this time, since the recording material separating oscillating body enters and intervenes between the outer peripheral surface of the feeding roller and the recording material, the recording material is separated from the outer peripheral surface of the feeding roller. It can be held securely. As a result, when recording on the recording material is not performed, oil or the like that oozes from the rubber material constituting the outer peripheral surface of the feeding roller adheres to the recording material and becomes dirty. It can be surely prevented.

  According to a third aspect of the present invention, in the automatic feeding device according to the second aspect described above, the recording material separation swinging body swings from the inner side to the outer side with respect to the outer peripheral surface of the feeding roller. The recording material separating means has an outer peripheral surface whose distance from the moving center becomes continuously longer in the forward rotation direction, and the recording material separating means rotates the feeding roller in the reverse direction to thereby rotate the recording material separating rocking body. An automatic feeding device characterized in that a recording material having an outer peripheral surface in the vicinity of the feeding roller is pushed away from the feeding roller.

  As described above, the outer peripheral surface of the recording material separating oscillating body has a shape in which the distance from the oscillating center continuously increases in the forward rotation direction from the inner side to the outer side with respect to the outer peripheral surface of the feeding roller. Have. Therefore, when the recording roller separating rocking body is swung in the reverse rotation direction by rotating the feeding roller in the reverse direction, the recording material in contact with the outer peripheral surface of the feeding roller has a distance from the rocking center. The portion that is the same distance as the outer peripheral surface of the feeding roller is in contact with the outer peripheral surface of the recording material separation rocking body. When the recording material separation oscillating body is further swung in the reverse rotation direction, the recording material in contact with the outer peripheral surface of the recording material separation oscillating body becomes the outer peripheral surface of the recording material separation oscillating body. Along the direction, the direction is moved away from the swing center (rotation center of the feed roller), that is, in a direction away from the feed roller.

  Thus, according to the automatic ball apparatus described in the third aspect of the present invention, the recording material that is in contact with the outer peripheral surface of the feeding roller is recorded while being separated from the outer peripheral surface of the feeding roller. It is possible to guide smoothly to the outer peripheral surface of the material separation rocking body. As a result, the outer peripheral surface of the recording material separating and swinging member can smoothly enter between the outer peripheral surface of the feeding roller and the recording material. Therefore, the operation of separating the recording material in the vicinity of the outer peripheral surface of the feeding roller can be performed more stably.

  According to a fourth aspect of the present invention, there is provided the automatic feeding device according to any one of the first to third aspects described above, wherein the recording material placed on a predetermined placement surface is placed on the outer peripheral surface of the feeding roller. An automatic feeding device characterized in that the recording material separating means separates the recording material pressed by the pressing means from the outer peripheral surface of the feeding roller. is there.

  In an automatic feeding apparatus having a configuration in which a recording material placed on a placing surface such as a feeding cassette or a feeding tray is constantly pressed against the outer peripheral surface of the feeding roller, the outer peripheral surface of the feeding roller The recording material is always in contact. For this reason, when recording on the recording material is not performed, there is a high possibility that oil or the like that oozes from the rubber material or the like constituting the outer peripheral surface of the feeding roller will adhere to the recording material.

  Therefore, a recording material separating unit is provided that can separate the recording material pressed by the pressing unit from the outer peripheral surface of the feeding roller. Thereby, in such an automatic feeding device, it is possible to obtain the operational effects of the invention described in the first to third aspects of the present invention, and it is possible to obtain the operational effects more remarkably.

  According to a fifth aspect of the present invention, there is provided an automatic feeding device that feeds a recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. When the recording surface is pressed between the outer peripheral surface and the recording material is sandwiched between the feeding roller and the separation surface, the surface is less than the frictional force generated on the contact surface between the outer peripheral surface of the feeding roller and the recording material. Separating means in which a frictional force greater than the frictional force generated on the contact surface between the recording materials acts on the contact surface between the separation surface and the recording material, and the outer peripheral surface of the feeding roller and the separation surface are relatively separated from each other. And an separating device for separating the separating surface.

  This separation surface separation means can make the separation surface (separation pad, retard roller, etc.) of the separation means pressed against the outer peripheral surface of the feed roller not in contact with the outer peripheral surface of the feed roller. Therefore, according to the separation surface separation means, the rubber material on the outer peripheral surface of the feeding roller is deformed by the contact surface between the outer peripheral surface of the feeding roller and the separation surface by the pressing force of the separation means. It is possible to prevent a situation in which the deformation is not allowed to return to its original state after being left for a long time.

  That is, according to the automatic feeding device according to the fifth aspect of the present invention, the automatic feeding device feeds the recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. In the apparatus, when recording on the recording material is not executed, it is possible to prevent a situation in which the rubber material or the like on the outer peripheral surface of the feeding roller does not return to its original state while being deformed. As a result, it is possible to reduce the possibility that the outer peripheral surface of the feeding roller is deformed or deteriorated when recording on the recording material is not performed, causing a feeding failure during recording on the recording material. The effect that it can be obtained.

  According to a sixth aspect of the present invention, in the automatic feeding device according to the fifth aspect described above, the separation surface separation means is provided with a predetermined swing resistance and swings on the rotation shaft of the feed roller. The support roller is pivotally supported, and by rotating the feed roller in reverse, it engages with the separation means while entering the region where the outer peripheral surface of the feed roller and the separation surface come into contact with each other to separate the separation surface. The separation is performed by swinging to the swing position where the outer peripheral surface of the feed roller and the separation surface come into contact with each other by swinging to the swing position to be displaced in the direction and rotating the feed roller forward. An automatic feeding device having a surface-separating rocking body.

  The separation surface separation oscillating body is provided with a predetermined oscillating resistance and is pivotally supported by the rotation shaft of the feeding roller so as to oscillate in the rotation direction by rotating the feeding roller. In addition, if the rotation is stopped, it can be stopped at the swing position. When the recording material pressed against the outer peripheral surface of the feeding roller is fed into the recording apparatus, the feeding roller rotates in the forward direction. Then, it swings from the region where the outer peripheral surface of the feeding roller and the separation surface of the separating means come into contact to the retreat position where it retracts. Accordingly, the recording material feeding operation by the forward rotation of the feeding roller and the recording material separating operation by the separating means can be performed without being obstructed by the separation surface separation rocking body.

  For example, after the recording on the recording material fed into the recording apparatus by the automatic feeding apparatus is completed, the feeding roller is rotated in the reverse direction. Due to the reverse rotation of the feeding roller, the separation surface separation rocking body engages with the separation means while entering the region where the outer peripheral surface of the feeding roller and the separation surface come into contact with each other, and displaces the separation surface in the separation direction. Swing to the moving position. Therefore, after the recording on the recording material is completed, the separation surface of the separation unit can be separated from the outer peripheral surface of the feeding roller by rotating the feeding roller in the reverse direction.

  At this time, the separation surface separating rocking member enters the region where the outer peripheral surface of the feed roller and the separation surface of the separation means come into contact with each other. The separation state of the separation surfaces can be reliably maintained. Accordingly, when recording on the recording material is not executed, the rubber material on the outer peripheral surface of the feeding roller remains deformed so as to be crushed by the contact surface between the outer peripheral surface of the feeding roller and the separation surface. It is possible to more reliably prevent a situation in which the deformation is not restored after being left for a long time.

  According to a seventh aspect of the present invention, in the automatic feeding device according to the sixth aspect described above, the separation surface separation unit is engaged with the separation unit when the separation surface separation rocking body is not in contact with the separation surface. In addition, the automatic feeding device is characterized in that the separation surface is displaced in the separation direction.

  Thus, since the separation surface separation rocking body has a configuration that engages with the separation means in a non-contact manner with the separation surface, when the separation surface is displaced in the separation direction from the outer peripheral surface of the feeding roller, The separation surface separation rocking body can be brought into a state where it does not contact the separation surface. As a result, it is possible to prevent a situation in which the separation surface separation rocking body abuts against the separation surface and is left for a long time while being deformed so that the rubber material or the like of the separation surface is crushed, and the deformation cannot be restored. can do.

  Therefore, in addition to the operational effects of the invention according to the sixth aspect of the present invention, deformation or deterioration of the separation surface (separation pad, retard roller, etc.) of the separation means when recording on the recording material is not being executed. As a result, it is possible to reduce the possibility of occurrence of feeding failure during recording on the recording material.

  According to an eighth aspect of the present invention, there is provided an automatic feeding device that feeds a recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. A cover that covers a part of the outer circumferential surface is disposed so as to be able to advance to the upstream side in the feeding direction of the outer circumferential surface of the feeding roller and to be retracted from the upstream side in the feeding direction of the outer circumferential surface of the feeding roller. Is an automatic feeding device characterized by

  In the automatic feeding device according to the eighth aspect of the present invention, the cover is advanced to the upstream side in the feeding direction on the outer peripheral surface of the feeding roller to cover the upstream side in the feeding direction on the outer peripheral surface of the feeding roller. it can. Accordingly, the outer peripheral surface of the feeding roller is generally called so-called ink through an opening or the like serving as a recording material feeding path from a feeding cassette or a feeding tray provided on the upstream side of the feeding roller in the feeding direction. The risk of direct exposure to mist and sunlight ultraviolet rays can be reduced.

  That is, according to the automatic feeding device described in the eighth aspect of the present invention, the automatic feeding device feeds the recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. In the apparatus, when recording on the recording material is not executed, the possibility that the outer peripheral surface of the feeding roller is directly exposed to so-called ink mist or ultraviolet rays of sunlight can be reduced. As a result, it is possible to reduce the possibility that the outer peripheral surface of the feeding roller is deformed or deteriorated when recording on the recording material is not performed, causing a feeding failure during recording on the recording material. The effect that it can be obtained.

  According to a ninth aspect of the present invention, in the automatic feeding device according to the eighth aspect described above, the cover is provided with a predetermined swinging resistance so as to be swingable about the rotation shaft of the feeding roller. By swinging the feed roller in the reverse direction, the feed roller swings to a swing position that advances to the upstream side in the feed direction of the outer peripheral surface of the feed roller, and by rotating the feed roller in the forward direction, The automatic feeding device is characterized in that it swings from the upstream side in the feeding direction of the outer peripheral surface of the feeding roller to a swinging position that retracts.

  Since the cover is pivotally supported on the rotation shaft of the feeding roller with a predetermined rocking resistance, the cover can be swung in the rotation direction by rotating the feeding roller. If the rotation is stopped, it can be stopped at the swing position. When the recording material pressed against the outer peripheral surface of the feeding roller is fed into the recording apparatus, the feeding roller rotates in the forward direction. Therefore, the cover rotates by the forward rotation of the feeding roller. Oscillates from the upstream side of the outer peripheral surface to the oscillating position for retreating. As a result, the feed roller is normally rotated without the cover blocking the supply path of the recording material from the feed cassette or the feed tray provided generally upstream in the feed direction of the feed roller. The recording material feeding operation can be performed.

  For example, after the recording on the recording material fed into the recording apparatus by the automatic feeding apparatus is completed, the feeding roller is rotated in the reverse direction. Due to the reverse rotation of the feed roller, the cover swings to the swing position where the outer peripheral surface of the feed roller advances to the upstream side in the feed direction. Therefore, after the recording on the recording material is finished, the cover is advanced to the upstream side in the feeding direction of the outer circumferential surface of the feeding roller by rotating the feeding roller in the reverse direction to feed the outer circumferential surface of the feeding roller. The direction upstream side can be covered.

  According to a tenth aspect of the present invention, in the automatic feeding device according to the fifth aspect described above, a recording material separating means for separating the recording material existing in the vicinity thereof from the outer peripheral surface of the feeding roller is provided. It is an automatic feeding device characterized by that.

  That is, according to the automatic feeding device described in the tenth aspect of the present invention, the automatic feeding device feeds the recording material pressed against the outer peripheral surface of the feeding roller into the recording device by the rotation of the feeding roller. In the apparatus, when the recording on the recording material is not executed, the outer peripheral surface of the feeding roller is deformed or deteriorated, and the possibility of causing a feeding failure at the time of recording on the recording material is reduced. From the rubber material that constitutes the outer peripheral surface of the feeding roller when recording on the recording material is not being performed (the operational effect of the invention described in the fifth aspect) There is obtained an operational effect that the exuded oil or the like can be prevented from adhering to the recording material and becoming dirty (the operational effect of the invention according to the first aspect described above).

  According to an eleventh aspect of the present invention, in the automatic feeding device according to the tenth aspect described above, the separation surface separation means is provided with a predetermined swing resistance and swings about the rotation shaft of the feed roller. A swinging position that is pivotally supported so that the separation surface is displaced in the separation direction while entering the region where the outer peripheral surface of the supply roller contacts the separation surface by rotating the feed roller in the reverse direction. A separation surface separation oscillating body that oscillates and oscillates from a region where the outer peripheral surface of the feeding roller and the separation surface abut to a oscillating position that retreats by rotating the feeding roller forward; The recording material separating means is provided with a predetermined rocking resistance and is pivotally supported on the rotation shaft of the feeding roller so as to be able to rock. By rotating the feeding roller in the reverse direction, an outer periphery of the feeding roller is provided. Between the surface and the recording material in the vicinity. The recording material is oscillated to a oscillating position for displacing the recording material in the separation direction, and the feeding roller is rotated in the forward direction, thereby retracting from between the outer peripheral surface of the feeding roller and the recording material in the vicinity thereof. An automatic feeding device having a recording material separating oscillating body that oscillates to an oscillating position, wherein the separation surface separating oscillating body and the recording material separating oscillating body are the same common oscillating body. It is.

  In the automatic feeding device according to the eleventh aspect of the present invention, the separation surface separation oscillating body and the recording material separation oscillating body are constituted by the same common oscillating body. Therefore, due to the forward rotation of the feeding roller, the shared rocking body is moved between the area where the outer circumferential surface of the feeding roller and the separation surface of the separating means abut and the outer circumferential surface of the feeding roller and the recording material in the vicinity thereof. Swings to the retracted swing position. Accordingly, the recording material feeding operation by the forward rotation of the feeding roller and the recording material separating operation by the separating means can be performed without being obstructed by the shared oscillator.

  For example, after the recording on the recording material fed into the recording apparatus by the automatic feeding apparatus is completed, the feeding roller is rotated in the reverse direction. Due to the reverse rotation of the feed roller, the shared rocking body engages with the separation means while entering the area where the outer peripheral surface of the feed roller and the separation surface come into contact, and displaces the separation surface in the separation direction. While entering between the outer peripheral surface of the feed roller and the recording material in the vicinity thereof, the recording roller engages with the recording material and swings to a swing position that displaces the recording material in the separation direction. Therefore, after the recording on the recording material is completed, the separation surface of the separating means can be separated from the outer peripheral surface of the feed roller by rotating the feed roller in the reverse direction, and from the outer peripheral surface of the feed roller. The recording material in the vicinity thereof can be separated.

  At this time, since the shared rocking body enters and intervenes between the region where the outer peripheral surface of the feeding roller and the separation surface of the separating unit abut and between the outer peripheral surface of the feeding roller and the recording material. The separation state of the separation surface of the separation means with respect to the outer peripheral surface of the feed roller and the separation state of the recording material with respect to the outer peripheral surface of the feed roller can be reliably maintained. Accordingly, when recording on the recording material is not executed, the rubber material on the outer peripheral surface of the feeding roller remains deformed so as to be crushed by the contact surface between the outer peripheral surface of the feeding roller and the separation surface. It is possible to more reliably prevent the situation that the deformation of the feed roller will not return to its original state after being left for a long time, and oil oozing out from the rubber material constituting the outer peripheral surface of the feed roller is recorded. It can prevent more reliably that it adheres to a material and gets dirty.

According to a twelfth aspect of the present invention, in the automatic feeding device according to the eleventh aspect described above, a cover that covers a part of the outer peripheral surface of the feeding roller is a feeding direction of the outer peripheral surface of the feeding roller. The automatic feeding device is arranged to advance upstream and to be retractable from the upstream side in the feeding direction of the outer peripheral surface of the feeding roller.
According to the automatic feeding device of the twelfth aspect of the present invention, in addition to the operational effect of the invention described in the eleventh aspect, the operational effect of the invention described in the eighth aspect is obtained. be able to.

A thirteenth aspect of the present invention is the automatic feeding apparatus according to the twelfth aspect described above, wherein a part of the shared oscillator is the cover. .
According to the automatic feeding device of the thirteenth aspect of the present invention, in addition to the operational effects of the invention described in the twelfth aspect, the operational effects of the invention described in the ninth aspect are obtained. be able to.

A fourteenth aspect of the present invention is a recording apparatus comprising: a recording execution unit for recording on a recording surface of a recording material; and the automatic feeding device according to any one of the first to thirteenth aspects.
According to the recording apparatus of the fourteenth aspect of the present invention, in the recording apparatus comprising the recording execution means for the recording surface of the recording material and the automatic feeding device, the first to thirteenth aspects described above are provided. The operational effects according to any of the inventions can be obtained.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of an ink jet printer.
An inkjet printer 100, which is an example of a “recording apparatus”, is a relatively compact printer that can be carried. The ink jet printer 100 is configured such that a feeding cassette 1 constituting the automatic feeding device 2 can be detachably mounted in a downwardly inclined posture on a cassette guide 8 provided in an upper opening 5 near the rear portion of the printer body 3. have. The automatic feeding device 2 provided with the feeding cassette 1 is merely an example, and the present invention can be implemented even with an automatic feeding device provided with a known feeding tray or the like.

  The feeding cassette 1 includes a “recording material” in a cassette body 10 in which a rear end surface 13, a left side surface 14, a right side surface 15, an upper surface 16, a front end surface and a bottom surface (not shown) are formed by integral molding. The recording paper P as an example has a configuration capable of being stored in a stacked state. The upper surface 16 is provided with square hole-shaped windows 161 and 162 that serve as a viewing window for confirming the presence or absence and the remaining amount of the recording paper P in the cassette body 10. A hopper (not shown) for supporting the recording paper P accommodated in the cassette body 10 is disposed on the bottom surface in the cassette body 10.

  The hopper is swingably disposed with the shaft 211 as a swing shaft, and the recording paper P can be pushed up from below by the swing. A shutter 12 is attached to an opening (not shown) provided on the upper surface 16 so that the opening can be opened and closed by sliding in the front-rear direction. A feeding roller 32 is disposed at a position facing the shutter 12. Therefore, the recording paper P placed on the hopper is pushed up toward the feeding roller 32 by swinging the hopper upward while the shutter 12 is opened and the opening faces the feeding roller 32. It will be.

  When the recording paper P is fed, the recording paper P in the cassette body 10 is pushed upward by the hopper pushing-up operation and is pressed against the outer peripheral surface of the feeding roller 32 positioned facing the opening of the cassette body 10. The That is, the hopper functions as a pressing unit that constantly presses the recording paper P placed on a predetermined placement surface in the cassette body 10 against the outer peripheral surface of the feeding roller 32. The feeding roller 32 is disposed on the rotating shaft 31 that rotates by transmitting the driving rotation of the motor 41 via the gear train 42. When the recording paper P is fed, the feeding roller 32 is fed by the driving rotation of the motor 41. Drive rotation in the feed direction Y (hereinafter referred to as forward rotation).

  That is, the automatic paper feeder 2 sequentially pulls out the recording paper P in the cassette body 10 from the uppermost side by the nipping pressure feeding action by the hopper and the feeding roller 32 when recording on the recording paper P is performed. It is configured to automatically feed one by one into the ink jet printer 100 via the feeding guide surface 108. Then, the other recording paper P having the leading edge protruding from the cassette body 10 after the feeding operation is pushed back into the cassette body 10 by the known paper return lever 7.

  On the downstream side in the feed direction Y of the feed roller 32, a known transport roller (not shown) configured by a pair of upper and lower transport driven rollers and a transport drive roller is provided. The recording paper P conveyed in the recording paper conveyance direction, which is the same direction as the feeding direction Y, by the conveyance roller is guided to the recording execution position of the “recording execution unit”. Above the recording execution position, a recording head (not shown) that directly performs recording by ejecting ink, which is an example of a liquid, onto the recording paper P is located. On the other hand, a platen (not shown) that supports the lower surface of the recording paper P is provided below the recording execution position. The platen defines a gap between the recording material and the recording head, which is important for recording quality. Have a role to play.

  The recording head is mounted on the lower surface of a carriage (not shown) that reciprocates in a direction X perpendicular to the recording paper conveyance direction. The carriage is guided by a carriage guide shaft (not shown) spanned in a direction X orthogonal to the recording paper transport direction, receives a driving force from an endless belt (not shown) stretched in the same direction X, and receives the recording paper transport direction. It is configured to be able to reciprocate in a direction X orthogonal to the direction. Further, a discharge roller (not shown) constituted by a pair of a driven roller and a drive roller is provided downstream of the recording execution position in the recording paper conveyance direction. Then, the recording paper P discharged by the discharge roller is discharged onto a placement surface of a discharge stacker (not shown).

  Next, the configuration of the automatic feeding device 2 according to the present invention will be described in detail with reference to FIGS.

FIG. 2 is a side view of the main part of the automatic feeding device 2 according to the present invention, and FIG. 3 is a perspective view of the main part of the automatic feeding apparatus 2, each showing a state in which the recording paper P is automatically fed. It is.
The automatic feeding device 2 according to the present invention has a configuration in which the recording paper P pressed against the outer peripheral surface of the feeding roller 32 is fed into the inkjet printer 100 by the forward rotation of the feeding roller 32. The feeding roller 32 has an outer peripheral surface formed of a rubber material such as synthetic rubber, and is provided on a rotary shaft 31 that is arranged to be rotatable in the forward rotation direction A or the reverse rotation direction by the drive rotation of the motor 41. These are arranged integrally so as to be concentric. That is, the feed roller 32 is disposed so as to be able to rotate in the normal rotation direction A or the reverse rotation direction by the drive rotation of the motor 41.

  In the retard roller 36 constituting the “separating means”, a region of the outer peripheral surface of the roller main body 361 facing the outer peripheral surface of the feeding roller 32 is formed of a rubber material such as synthetic rubber. The retard roller 36 is pivotally supported on the roller shaft 35 so as to be driven to rotate in a state where the roller body 361 is given a certain rotational resistance. The roller shaft 35 is disposed so as to be displaceable along the long hole 109 and is urged toward the feeding roller 32 by a torsion coil spring 351. Accordingly, the retard roller 36 is in a state where the outer peripheral surface of the retard roller 36 serving as a “separation surface” is in contact with and pressed against the outer peripheral surface of the feed roller 32, and is displaced in a direction away from the feed roller 32. It is arranged in a possible state.

The “separating means” of the automatic feeding device 2 in this embodiment is configured such that when the recording paper P is sandwiched between the outer peripheral surface of the feeding roller 32 and the outer peripheral surface of the retard roller 36, the outer peripheral surface of the feeding roller 32 and the recording are recorded. A frictional force smaller than the frictional force generated on the contact surface with the paper P and larger than the frictional force generated on the contact surface between the recording papers P acts on the contact surface between the outer peripheral surface of the retard roller 36 and the recording paper P. Yes. In a state where one sheet of recording paper P1 is sandwiched between the outer peripheral surface of the feeding roller 32 and the outer peripheral surface of the retard roller 36, the frictional force of the contact surface between the outer peripheral surface of the feeding roller 32 and the recording paper P1. The recording paper P <b> 1 is fed along with the rotation of the feeding roller 32. On the other hand, when two or more recording papers P are sandwiched between the outer peripheral surface of the feeding roller 32 and the outer peripheral surface of the retard roller 36, the recording paper P1 in contact with the outer peripheral surface of the feeding roller 32 is fed. While being fed by the rotation of the feed roller 32, the other recording paper P is locked by the frictional force of the contact surface between the outer peripheral surface of the retard roller 36 and the recording paper P, thereby preventing double feeding.
The “separating means” is not particularly limited to the retard roller 36, and may be in any form as long as it can exhibit the above-described separation function of the recording paper P, such as a known separation pad. Needless to say, the present invention can be implemented even if it exists.

  On the upstream side in the feed direction Y of the feed roller 32, a contact surface 106 is formed on the front end surface of the cassette body 10, and the front end surface of the recording paper P contacts, and the front end contacts the contact surface 106. The paper P is pressed against the outer peripheral surface of the feeding roller 32 by the hopper (not shown). A feed guide surface 108 that guides the recording paper P in the feed direction Y is formed downstream of the contact surface 106 in the feed direction Y as shown in the figure. The preliminary separation spring 38 is a plate spring-like member, and a preliminary separation slope inclined downward with respect to the contact surface 106 of the recording paper P is provided in the vicinity of the pressing contact surface of the recording paper P with respect to the feeding roller 32. Constitute. On the downstream side of the automatic feeding device 2 in the feeding direction Y, the transport driven roller 55 and the transport drive roller 54 are disposed. Further, on the downstream side, the platen 51 is disposed. It is arranged.

  The automatic feeding device 2 according to the present invention includes a “recording material separating unit” that separates the recording paper P in the vicinity thereof from the outer peripheral surface of the feeding roller 32 and the outer peripheral surface of the feeding roller 32 and the retard roller 36. “Separation surface separation means” for relatively separating the outer peripheral surface (separation surface) is provided, and these are realized by using the oscillating body 33 as a main component. The frame 107 is disposed so as to constitute a part of the main body frame structure of the inkjet printer 100, and is disposed in the vicinity of the downstream side in the feeding direction Y of the feeding roller 32. The frame 107 is provided with a swing position restricting surface 34 that restricts the swing position of the swing body 33 in the forward rotation direction A and the reverse rotation direction.

  The “recording material separation rocking body” or the “separation surface separation rocking body” or the rocking body 33 as these “common rocking body” includes a first locking end 331 and a second locking end 331 that engage with the rocking position regulating surface 34. The locking end 333 has a protective cover portion 332 as a “cover” that covers a part of the outer peripheral surface of the feeding roller 32. Also, ribs 335 are formed on both sides of the outer peripheral surface of the protective cover 332 as shown in the figure. The shape of the outer peripheral surface of the rib 335 has a region on the inner side of the outer peripheral surface of the feeding roller 32 and a region on the outer side of the outer peripheral surface of the feeding roller 32 as shown in the figure. That is, the rib 335 is directed from the inside to the outside with respect to the outer peripheral surface of the feed roller 32 as shown in the drawing, starting from the vicinity of the portion 334 where the outer peripheral surface of the feed roller 32 and the outer peripheral surface of the rib 335 substantially coincide with each other. Thus, the shape has an outer peripheral surface in which the distance from the center of oscillation continuously increases in the positive rotation direction A.

  The oscillating body 33 is pivotally supported by the rotating shaft 31 of the feeding roller 32 so as to be able to oscillate. A predetermined coil spring 39 is provided between the oscillating body 33 and a spring retainer 37 fixed to the rotating shaft 31. Oscillating resistance is given. Therefore, the rocking body 33 can be swung in the rotation direction by rotating the feeding roller 32, and can be stopped at the rocking position if the rotation is stopped. Further, even when the rotating body 31 is rotating, the oscillating body 33 moves in the rotational direction when the first locking end 331 or the second locking end 333 contacts the oscillating position regulating surface 34. The swing position is regulated and the swing position is maintained.

  Hereinafter, operation | movement of the rocking | swiveling body 33 in the automatic feeder 2 which concerns on this invention is demonstrated in detail, referring FIGS.

First, the operation of the rocking body 33 when the recording paper P is automatically fed will be described with reference to FIGS.
When the recording paper P1 pressed against the outer peripheral surface of the feeding roller 32 is fed into the ink jet printer 100, the rotation shaft 31 of the feeding roller 32 rotates in the normal rotation direction A, thereby feeding the recording paper P1. The roller 32 also rotates in the normal rotation direction A. Therefore, the swinging body 33 swings to the swinging position where the first locking end 331 comes into contact with and engages with the swinging position regulating surface 34 and stops by the positive rotation of the rotating shaft 31. A state is reached (reference A1).

  In this state, the oscillating body 33 is retracted from between the outer peripheral surface of the feeding roller 32 and the recording paper P pressed against the outer peripheral surface of the feeding roller 32 by the hopper (not shown) as shown in the figure. As well as being in a state, the state is also retracted from the region where the outer peripheral surface of the feed roller 32 and the outer peripheral surface of the retard roller 36 are in contact. Thereby, the automatic feeding device 2 feeds the recording paper P by the rotation of the feeding roller 32 in the normal rotation direction A and the recording paper P by the retard roller 36 pressed against the outer peripheral surface of the feeding roller 32. The separation operation can be performed without being disturbed by the rocking body 33.

Next, the operation of the oscillator 33 after completing the recording on the recording paper P1 after feeding will be described with reference to FIGS.
FIG. 4 is a side view of an essential part of the automatic feeding device 2 according to the present invention, and illustrates a state in which the rotation of the feeding roller 32 in the reverse rotation direction is started.

  During the feeding operation of the recording paper P, the vicinity of the leading end of the recording paper P separated by the retard roller 36 may be sandwiched between the feeding roller 32 and the retard roller 36 and jump out to the feeding guide surface 108. is there. After execution of recording on the recording paper P1 after feeding, when the rotation shaft 31 of the feeding roller 32 is rotated in the reverse rotation direction B, the feeding roller 32 is rotated in reverse (reference C), and the oscillator 33 is also rotated. Reverse rotation (symbol D). When there is the recording paper P in the state where the vicinity of the leading edge protrudes from the feeding guide surface 108 after the feeding operation, the recording paper P is pulled back into the feeding cassette 1 by the reverse rotation of the feeding roller 32.

  At this time, it is preferable to provide a mechanism that causes a certain time lag until the reverse rotation D of the rocking body 33 is started only when the rotation of the rotation shaft 31 of the feed roller 32 in the reverse rotation direction B is started. Accordingly, the above-described pulling-back operation time of the recording paper P due to the reverse rotation C of the feeding roller 32 can be ensured longer, so that the rib 335 of the oscillating body 33 is formed between the outer peripheral surface of the feeding roller 32 and the retard roller 36. The recording paper P can be pulled back more reliably before entering between the outer peripheral surfaces.

FIG. 5 is a side view of an essential part of the automatic feeding device 2 according to the present invention, and illustrates a state in which the retard roller 36 is displaced in the retracting direction by the rib 335 of the rocking body 33.
When the rotation shaft 31 of the feeding roller 32 is further rotated in the reverse rotation direction B, the rocking body 33 is further reversely rotated D. Then, the oscillating body 33 enters the region where the outer peripheral surface of the feed roller 32 and the outer peripheral surface of the retard roller 36 come into contact with each other, and the rib 335 comes into contact with the roller body 361 of the retard roller 36 to feed the retard roller 36. The feed roller 32 is displaced by being pushed in a direction away from the outer peripheral surface of the feed roller 32 (direction indicated by E). That is, after recording on the recording paper P after feeding, the outer circumferential surface of the retard roller 36 is changed from the outer circumferential surface of the feeding roller 32 by rotating the rotating shaft 31 of the feeding roller 32 in the reverse rotation direction B. The outer circumferential surface of the feed roller 32 can be separated from the outer circumferential surface of the retard roller 36.

  Therefore, when recording on the recording paper P is not executed, the outer circumferential surface of the feeding roller 32 and the outer circumferential surface of the retard roller 36 are brought into contact with each other by the pressing force of the retard roller 36 against the outer circumferential surface of the feeding roller 32. It is possible to prevent a situation in which the rubber material or the like on the outer peripheral surface of the feeding roller 32 is left to deform for a long time while being deformed so that the deformation cannot be restored.

  The retard roller 36 is pushed in the separation direction by the rib 335 in a state in which the rib 335 of the rocking body 33 is not in contact with the outer peripheral surface formed of a rubber material but only in contact with the outer roller body 361. It is moved and displaced. That is, the oscillating body 33 is configured to engage with the outer peripheral surface of the retard roller 36 formed of a rubber material in a non-contact manner and push the retard roller 36 in the separating direction. Therefore, when the retard roller 36 is displaced from the outer peripheral surface of the feed roller 32 in the separating direction, the swinging body 33 can be brought into a state of not contacting the outer peripheral surface of the retard roller 36.

  Accordingly, when recording on the recording paper P is not being executed, the swinging body 33 is in contact with the outer peripheral surface of the retard roller 36 and the rubber material or the like on the outer peripheral surface of the retard roller 36 is deformed so as to be long. It is possible to prevent a situation in which the deformation is not restored after being left for a period of time. Therefore, when recording on the recording paper P is performed, it is possible to reduce the possibility of feeding failure due to deformation or deterioration of the outer peripheral surface of the retard roller 36.

FIG. 6 is a side view of the main part of the automatic feeding device 2 according to the present invention, in which the recording paper P pressed against the outer peripheral surface of the feeding roller 32 by the rib 335 of the rocking body 33 is displaced in the retracting direction. Is illustrated.
When the rotation shaft 31 of the feeding roller 32 is further rotated in the reverse rotation direction B, the rocking body 33 is further reversely rotated D. Then, while the rocking body 33 enters between the recording paper P and the outer peripheral surface of the feeding roller 32 on which the recording paper P is pressed, the rib 335 contacts the recording paper P, as shown in the figure. The recording paper P is pushed and displaced in the direction of separating from the outer peripheral surface of the feeding roller 32. That is, after execution of recording on the recording paper P after feeding, the recording paper P pressed against the outer peripheral surface of the feeding roller 32 by rotating the rotating shaft 31 of the feeding roller 32 in the reverse rotation direction B. Can be separated from the outer peripheral surface of the feeding roller 32 so that the recording paper P in the feeding cassette 1 is not in contact with the outer peripheral surface of the feeding roller 32.

  Further, as described above, the rib 335 formed in a convex shape on the outer circumferential surface of the rocking body 33 starts from the vicinity of the portion 334 where the outer circumferential surface of the feeding roller 32 and the outer circumferential surface of the rocking body 33 substantially coincide with each other. The distance from the center of oscillation to the outer peripheral surface of the feed roller 32 from the inside toward the outside is a shape having a portion that continuously increases in the positive rotation direction A. Therefore, in the process of reverse rotation D of the rocking body 33, the recording paper P in contact with the feeding roller 32 has the same distance from the rocking center between the outer circumferential surface of the rib 335 and the outer circumferential surface of the feeding roller 32. It will contact the outer peripheral surface of the rib 335 at the boundary 334 (see FIG. 5). The recording sheet P in contact with the outer peripheral surface of the rib 335 moves away from the swing center (the rotation center of the feed roller 32) along the outer peripheral surface of the rib 335, that is, from the feed roller 32. It will be pushed in the direction to separate (FIG. 6).

That is, the outer peripheral surface shape of the rib 335 is such that the distance from the swing center continuously increases in the positive rotation direction A from the inner side to the outer side with respect to the outer peripheral surface of the feed roller 32. The recording paper P that is in contact with the outer peripheral surface is smoothly guided along the outer peripheral surface of the rib 335 while being gradually separated from the outer peripheral surface of the feeding roller 32. Accordingly, the outer peripheral surface of the rib 335 can smoothly enter between the outer peripheral surface of the feeding roller 32 and the recording paper P. Accordingly, when recording on the recording paper P is not executed, the operation of separating the recording paper P pressed against the outer peripheral surface of the feeding roller 32 from the outer peripheral surface of the feeding roller 32 is performed more stably. be able to.
The outer peripheral surface shape of the rib 335 is preferably set so that the outer peripheral surface of the rib 335 is a surface that is substantially orthogonal to the ideal pushing direction of the recording paper P at the portion in contact with the recording paper P.

FIG. 7 is a side view of the main part of the automatic feeding device 2 according to the present invention, and FIG. 8 is a perspective view of the main part of the automatic feeding device 2, both of which swing with respect to the rotation of the rotary shaft 31 in the reverse rotation direction B. A state in which the reverse rotation D of the moving body 33 is locked is illustrated.
As described above, the frame 107 is disposed in the vicinity of the downstream side in the feeding direction Y of the feeding roller 32, and the inflow of ink mist and the like generated inside the inkjet printer 100 is blocked to some extent. However, an upper opening 5 serving as a supply path for the recording paper P from the feeding cassette 1 is provided upstream of the feeding roller 32 in the feeding direction Y (FIG. 1). Therefore, because of the structure of the automatic feeding device 2, there is a possibility that the outer peripheral surface of the feeding roller 32 is directly exposed to so-called ink mist or ultraviolet rays of sunlight through the upper opening 5 or the like.

  When the rotating shaft 31 of the feeding roller 32 is further rotated in the reverse rotation direction B, the rocking body 33 further rotates in the reverse direction D. Then, the rocking body 33 is swung to the rocking position where the second locking end 333 contacts and engages with the rocking position restricting surface 34 by the rotation of the rotating shaft 31 in the reverse rotation direction B. It will move and stop. In this state, the protective cover portion 332 formed integrally with the rocking body 33 advances to the upstream side in the feeding direction Y with respect to the outer peripheral surface of the feeding roller 32, and the feeding roller 32 of that portion The outer peripheral surface is covered. Thereby, when recording on the recording paper P is not executed, the possibility that the outer peripheral surface of the feeding roller 32 is directly exposed to so-called ink mist or ultraviolet rays of sunlight can be reduced.

  Further, when the recording paper P pressed against the outer peripheral surface of the feeding roller 32 is fed into the inkjet printer 100, the protective cover portion 332 moves in the normal rotation direction A of the rotation shaft 31 of the feeding roller 32. Is rotated from the upstream side in the feeding direction Y of the outer peripheral surface of the feeding roller 32 (FIG. 3). Accordingly, when the recording paper P is fed, the protective cover 332 does not obstruct the supply path of the recording paper P from the feeding cassette 1 mounted on the upstream side in the feeding direction Y of the feeding roller 32. The recording paper P can be fed by the rotation of the feeding roller 32 in the normal rotation direction A.

  As described above, according to the automatic feeding device 2 according to the present invention, when recording on the recording paper P is not executed, the feeding force is applied by the pressing force of the retard roller 36 against the outer peripheral surface of the feeding roller 32. A situation in which the rubber material on the outer peripheral surface of the feed roller 32 is deformed so as to be crushed by the contact surface between the feed roller 32 and the retard roller 36 and the deformation cannot be restored. Can be prevented. Moreover, the possibility that the outer peripheral surface of the feed roller 32 is directly exposed to so-called ink mist or ultraviolet rays of sunlight can be reduced. Therefore, when the recording on the recording paper P is not executed, the outer peripheral surface of the feeding roller 32 is deformed or deteriorated, and the possibility of causing a feeding failure at the time of recording on the recording paper P is reduced. Can do.

  In addition, according to the automatic feeding device 2 according to the present invention, the recording paper P pressed against the outer peripheral surface of the feeding roller 32 when the recording on the recording paper P is not being executed. The recording paper P in the feeding cassette 1 is not in contact with the outer circumferential surface of the feeding roller 32 by being separated from the outer circumferential surface. Therefore, when recording on the recording paper P is not executed, oil or the like that oozes from the rubber material constituting the outer peripheral surface of the feeding roller 32 is attached to the recording paper P and becomes dirty. Can be prevented.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

It is a perspective view which shows the external appearance of an inkjet printer. FIG. 4 is a side view of a main part in a state where recording paper is automatically fed by an automatic feeding device. FIG. 4 is a perspective view of a main part in a state where recording paper is automatically fed by an automatic feeding device. It is a principal part side view of the state which started the reverse rotation of the feeding roller with the automatic feeding apparatus. It is a principal part side view of the state which retracted the retard roller with the automatic feeding apparatus. FIG. 6 is a side view of a main part in a state where a recording paper is pushed and retracted by an automatic feeding device. It is a principal part side view in the state where reverse rotation of a rocking body was stopped with an automatic feeder. It is a principal part perspective view of the state in which reverse rotation of the rocking body was stopped by the automatic feeder.

Explanation of symbols

1 cassette for feeding, 2 automatic feeding device, 10 cassette body, 31 rotating shaft, 32 feeding roller, 33 rocking body, 34 rocking position regulating surface, 35 roller shaft, 36 retard roller, 37 spring retainer, 39 coil Spring, 100 Inkjet printer, 331 1st locking end, 332 Protective cover, 333 2nd locking end, 335 Rib, Y Feeding direction

Claims (4)

An automatic feeding device that feeds a recording material pressed against an outer peripheral surface of a feeding roller into a recording device by rotation of the feeding roller,
When a separation surface is pressed against the outer peripheral surface of the feeding roller and the recording material is sandwiched between the feeding roller and the separation surface, a contact surface is formed between the outer peripheral surface of the feeding roller and the recording material. A separating means in which a frictional force smaller than the frictional force and larger than a frictional force generated on the contact surface between the recording materials acts on the contact surface between the separation surface and the recording material;
Separating surface separating means for relatively separating the outer peripheral surface of the feeding roller and the separating surface ;
And a recording material separating means for separating the recording material located in the vicinity of the outer peripheral surface of the feed roller,
The separation surface separation means is provided with a predetermined rocking resistance and is pivotally supported on a rotation shaft of the feeding roller, and rotates the feeding roller in a reverse direction, thereby rotating the outer circumferential surface of the feeding roller. Oscillates to a swaying position that displaces the separation surface in the separating direction while entering the region where the separation surface abuts, and by rotating the feeding roller forward, the outer peripheral surface of the feeding roller and the A separation surface separation oscillating body that oscillates from a region in contact with the separation surface to a retreating oscillating position;
The recording material separating means is provided with a predetermined rocking resistance and is pivotally supported on the rotation shaft of the feeding roller so as to be able to rock. By rotating the feeding roller in the reverse direction, an outer periphery of the feeding roller is provided. The feeding roller is rotated by swinging to a swinging position that displaces the recording material in the separating direction while entering between the surface and the recording material in the vicinity thereof, and rotating the feeding roller forward. A recording material separating oscillating body that oscillates from a position between the outer peripheral surface of the recording material and a recording material in the vicinity thereof to a oscillating position that retracts,
The automatic feeding device according to claim 1, wherein the separation surface separation rocking body and the recording material separation rocking body are the same common rocking body. 2. The automatic feeding device according to claim 1 , wherein a cover that covers a part of the outer circumferential surface of the feeding roller advances to the upstream side in the feeding direction of the outer circumferential surface of the feeding roller and the outer circumferential surface of the feeding roller. An automatic feeding device, wherein the automatic feeding device is disposed so as to be retractable from the upstream side in the feeding direction. 3. The automatic feeding apparatus according to claim 2 , wherein a part of the shared oscillator is the cover. A recording execution means to the recording surface of the recording material, a recording apparatus having an automatic feeding device according to any one of claims 1-3.

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