JP6365816B2 - Recording device - Google Patents

Description

  The present invention relates to a medium feeding apparatus that feeds a medium, and a recording apparatus represented by a facsimile, a printer, and the like, which includes the medium feeding apparatus.

  In a recording apparatus represented by a facsimile or a printer, a tray for supporting (loading) a medium to be fed is provided. The tray is provided so as to be openable and closable, and supports the medium fed in the open state. The open state of the tray may take an inclined posture like the sheet tray described in Patent Document 1, and the sheet tray described in Patent Document 1 is provided by the connecting member so as to maintain the inclined posture.

JP 2008-150133 A

  For example, in a printer for business use, it is desired to increase the capacity of paper that can be set. If a large number of sheets are placed on the sheet tray that maintains the inclined posture by the connecting member as described above, the sheet tray may bend and the posture of the sheet may not be maintained well. There is also a risk of inviting.

  Accordingly, the present invention has been made in view of such a situation, and an object of the present invention is to provide a medium feeding apparatus capable of placing a large number of media more reliably.

  In order to solve the above problems, the medium feeding device according to the first aspect of the present invention switches between an open state in which a medium to be fed is placed and a closed state in which the medium is closed. The medium mounting unit can be switched between a possible medium mounting unit, a supporting state in which the medium mounting unit is supported from the back side, and a non-supporting state in which the medium mounting unit is not supported. And a support member that switches from the non-support state to the support state in accordance with the switch from the closed state to the open state.

  According to this aspect, since the medium placement unit for placing the medium is supported from the back side by the support member, the medium placement unit has improved resistance to load, and when a large number of media are placed. Can be prevented or suppressed, and as a result, a large number of media can be placed reliably.

According to a second aspect of the present invention, in the first aspect, the support member switches between the support state and the non-support state by rotating.
According to this aspect, since the support member switches between the support state and the non-support state by rotating, the state change of the support member can be realized with a simple structure and at low cost.

  According to a third aspect of the present invention, in the first or second aspect, the medium placing portion includes an engaging portion that engages with the support member, and the medium placing portion is in the closed state from the closed state. In the process of switching to the open state, the engagement portion switches the support member from the non-support state to the support state.

  According to this aspect, the medium mounting portion includes an engaging portion that engages with the support member, and in the process of switching the medium mounting portion from the closed state to the open state, the engaging portion is Since the support member is switched from the unsupported state to the supported state, a means for switching the state of the support member in conjunction with the state switching of the medium mounting portion can be simplified in structure and obtained at low cost. .

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a plurality of protrusions provided on a side portion of the medium placement unit, and a guide groove that guides the plurality of protrusions. And the projection is guided by the guide groove so that the medium placement unit switches between the open state and the closed state.

  According to this aspect, since the projection is guided by the guide groove, the medium placement unit switches between the open state and the closed state, so that the configuration for switching the state of the medium placement unit can be simplified. Can be obtained at low cost.

  According to a fifth aspect of the present invention, in the fourth aspect, the guide groove extends in a vertical direction, and the first positioning portion holds the medium placement portion in the closed state by positioning the protrusion at a lower portion. Each having a second positioning portion for positioning the protrusion on the upper portion and holding the medium placement portion in the open state, wherein the medium placement portion assumes an inclined posture in the open state and in the closed state. It is characterized by taking a vertical posture.

  According to this aspect, since the medium placement unit performs state switching through both the vertical slide operation and the rotation operation, the medium placement unit is an apparatus in the closed state of the medium placement unit. Projecting upward can be avoided, and the apparatus can be downsized.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the support member is at least the medium placement in a direction intersecting a feeding direction of the medium placed on the medium placement section. The medium mounting portion is supported at a position closer to the center from the end of the portion.

  According to this aspect, the medium placement unit is configured such that the support member is at least a position near the center from the end of the medium placement unit in a direction intersecting the feeding direction of the medium placed on the medium placement unit. Therefore, the bending of the medium placement portion in the intersecting direction can be effectively suppressed.

According to a seventh aspect of the present invention, in the sixth aspect, the support member has a shape extending across the entire back surface of the medium placement portion in the intersecting direction.
According to this aspect, since the support member has a shape extending over the entire back surface of the medium placement unit in the intersecting direction, the medium placement unit is formed in a wide range or more in the intersecting direction. It is possible to support at the position, and as a result, it is possible to more reliably suppress the bending of the medium placing portion.

  According to an eighth aspect of the present invention, in any one of the first to seventh aspects, when the medium placement unit is in the open state and the support member is in the support state, the support member is a device. It is characterized in that it is in a non-projecting state from the medium placing part in the front-back direction.

  According to this aspect, when the medium placement unit is in the open state and the support member is in the support state, the support member is in a non-projecting state from the medium placement unit in the longitudinal direction of the apparatus. The support member does not enlarge the installation space of the apparatus, and the degree of freedom of the installation place of the apparatus is improved.

According to a ninth aspect of the present invention, there is provided a recording unit that performs recording on a medium, and a medium feeding device according to any one of the first to eighth aspects that feeds the medium toward the recording unit. It is characterized by that.
According to this aspect, in the recording apparatus, it is possible to obtain the same operational effects as any one of the first to eighth aspects.

1 is an external perspective view of a printer according to the present invention. FIG. 4 is a side cross-sectional view illustrating a paper conveyance path of the printer according to the invention. It is the perspective view which looked at the tray of the closed state from the back side. It is the perspective view which looked at the tray of the slide state from the back side. It is the perspective view which looked at the tray of the state which slid and opened from the back side. It is the perspective view which looked at the tray and the extension tray pulled out from the tray of the state opened by sliding from the back side. It is a side view which shows the tray and support of a closed state. It is a side view which shows the slide tray and support. It is a side view which shows the tray and support of the state which slid and opened. It is side sectional drawing which shows the shaft hole and guide groove of an apparatus main body for positioning a tray or a support. It is side sectional drawing which shows the tray and support of a closed state. It is side sectional drawing which shows the tray and slide which were slid. It is side sectional drawing which shows the tray and support of the state which slid open. It is sectional drawing which shows the cross section of the site | part which the support and tray which support a tray contact | abut.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. However, the invention is not limited to the embodiment described below, and various modifications are possible within the scope of the invention described in the claims. Assuming that these are also included in the scope of the present invention, one embodiment of the present invention will be described below.

  FIG. 1 is an external perspective view of an ink jet printer (hereinafter referred to as “printer”) 1 as an embodiment of a “recording apparatus” according to the present invention, and FIG. 2 is a side sectional view showing a paper conveyance path of the printer 1.

  Note that, in the xyz orthogonal coordinate system shown in each drawing, the x direction and the y direction are horizontal directions, of which the x direction is the paper width direction and the moving direction of the carriage 26 (main scanning direction). Yes, also in the horizontal direction of the device. In addition, the y direction is the paper transport direction and is also the apparatus depth direction. Furthermore, the z direction is the direction of gravity and is also the device height direction. Further, hereinafter, the left back side in FIG. 1 in the x direction is the left side of the apparatus, and the right front side in FIG. Further, in the y direction, the left front side in FIG. 1 is referred to as the apparatus front side, and in the y direction, the right back side in FIG. 1 is referred to as the apparatus rear side (rear side).

The overall configuration of the printer 1 will be outlined below with reference to FIGS. 1 and 2. The printer 1 includes an apparatus main body 2 that performs ink jet recording on a recording paper P as an example of a medium, and a scanner unit 3 provided on the apparatus main body 2.
The apparatus main body 2 is detachably provided with a paper cassette 4 (not shown in FIG. 1) for storing a plurality of recording papers P, and the recording paper P is fed from the paper cassette 4 one by one. An operation panel 7 for performing various commands and settings is provided on the front surface of the apparatus main body 2.

  A tray 61 and an extension tray 62 for placing the recording paper P fed in an open state, and a cover 63 are provided behind the apparatus main body 2.

  Hereinafter, the configuration of the printer 1 on the paper conveyance path will be described mainly with reference to FIG. The printer 1 includes a sheet feeding path from a sheet cassette 4 provided at the bottom of the apparatus body 2 and a sheet feeding path from a feeding apparatus 10 provided at the upper rear side of the apparatus body 2. A broken line in FIG. 2 is a passage locus of the recording paper P fed from the feeding device 10.

  Hereinafter, the paper feeding path from the paper cassette 4 will be described first. Reference numerals 30 and 32 respectively denote a first feeding roller and a second feeding roller that are rotationally driven by a motor (not shown). In a state where the paper cassette 4 is mounted, the first feeding roller 30 and the second feeding roller 32 are positioned above the front end of the paper cassette 4.

  At the bottom of the paper cassette 4, there is provided a hopper 6 that pushes up the recording paper P accommodated by swinging about the rocking shaft 6a. The hopper 6 pushes up the recording paper P to receive it. The uppermost one of the recorded sheets P can be brought into contact with the first feeding roller 30. Accordingly, when the first feeding roller 30 rotates (forward rotation) in this state, the recording paper P is sent out from the paper cassette 4.

  A separation roller 8 is provided at an end of the paper cassette 4 in the paper feeding direction. When the paper cassette 4 is mounted, the separation roller 8 comes into contact with the second feeding roller 32. Thereby, the recording paper P sent out by the first feeding roller 30 is nipped and separated between the separation roller 8 and the second feeding roller 32.

A first intermediate roller 34 for conveying the recording paper P and a second intermediate roller 36 are provided on the downstream side of the second feeding roller 32, and the recording paper P delivered from the paper cassette 4 is the first intermediate roller 34. It receives a transport force from the first intermediate roller 34 and the second intermediate roller 36 and is transported downstream.
Reference numerals 37a and 37b are driven rollers that are driven to rotate while nipping the recording paper P with the first intermediate roller 34, and reference numeral 37c is a nip of the recording paper P with the second intermediate roller 36. It is a driven roller that rotates in a driven manner.

A transport roller pair 39 is provided on the downstream side of the second intermediate roller 36, and the recording paper P is sent to the recording area by the transport roller pair 39 roller.
A recording head 45 that ejects ink onto the recording paper P and a support member 41 that supports the recording paper P are provided on the downstream side of the transport roller pair 39. The recording head 45 is provided at the bottom of a carriage 46 that is driven in the paper width direction (main scanning direction).

  A first discharge roller pair 42 and a second discharge roller pair 43 are provided downstream of the region (recording region) where the support member 41 and the recording head 45 face each other, and the recording paper P on which recording has been performed is The paper is discharged toward the paper discharge receiving tray 5 by these discharge roller pairs.

  Next, a paper feeding path from the feeding device 10 which is an embodiment of the “medium feeding device” according to the present invention will be described. In the feeding device 10, a base of the device is constituted by a frame 12, and a hopper 16 that supports a plurality of recording sheets P in an inclined posture is provided on the frame 12. The tray 61 and the extension tray 62 are provided on the upper rear portions of the frame 12 and the hopper 16 so as to be extendable (slidable) and openable. The tray 61 and the extension tray 62 place the recording paper P to be fed in a slid open state.

  The hopper 16 is provided so as to be swingable about a swing shaft (not shown), and pushes up the supported recording paper P by swinging. When the hopper 16 pushes up the recording sheet P, the uppermost one of the supported recording sheets P can contact the feeding roller 14. Accordingly, when the feeding roller 14 rotates (forward rotation) in this state, the recording paper P is sent out from the hopper 16. A shaft 15 that is a rotation shaft of the feeding roller 14 receives power from a driving unit (not shown).

  The feeding roller 14 has a substantially D shape when viewed from the side, and feeds the recording paper P through an arcuate portion. When the leading end of the recording paper P reaches the transport roller pair 39 and the recording paper P is transported by the transport roller pair 39, the flat portion faces the recording paper P and the recording paper between the separation roller 17 described later. It is controlled not to nip P.

The separation roller 17 as the separation means has an outer peripheral surface formed of a high friction material, is given a predetermined rotational resistance, and is biased toward the feeding roller 14. Then, by niping the recording paper P with the feeding roller 14, the uppermost recording paper P to be fed, and the subsequent recording paper P about to be fed along with this, Isolate.
The recording paper P sent out by the feeding roller 14 is nipped by the second intermediate roller 36 and the driven roller 37 c and conveyed to the conveying roller pair 39.

  Next, the tray 61, the extension tray 62, and the support 71 (FIGS. 3 to 6) will be described. In the feeding device 10, the support 71 supports the tray 61 that is in an open state (open state) in which the recording paper P to be fed is placed as described in detail later from the back side. In this way, a large number of recording sheets P can be placed more reliably.

  Hereinafter, the configuration of the tray 61, the extension tray 62, and the support 71 will be further described with reference to FIGS. 3 is a perspective view of the tray 61 in a closed state as viewed from the rear side, FIG. 4 is a perspective view of the tray 61 in a slid state as viewed from the rear side, and FIG. 5 is a rear view of the tray 61 in a slid open state. FIG. 6 is a perspective view of the tray 61 in a slid open state and the extension tray 62 pulled out from the tray 61 as seen from the rear side.

  The tray 61 is an example of a medium placement unit, and is configured to be switchable between an open state in which the recording paper P to be fed is placed and a closed state in which it is closed. More specifically, the tray 61 is provided so as to be able to expand and contract and open / close with respect to the apparatus main body 2. Then, the recording paper P is placed on the tray 61 which is slid and opened, and the recording paper P placed on the tray 61 is sent out in this state.

  The extension tray 62 is provided on the back side of the tray 61, and can be expanded and contracted with respect to the tray 61 by sliding a groove on the back side of the tray 61. At the center of the upper end of the back surface of the extension tray 62, a handle 64 is formed for facilitating pulling out the extension tray 62 with a finger.

  The cover 63 is rotatably provided on the apparatus main body 2 and opens and closes the upper side of the closed tray 61. The cover 63 rotates with the expansion and contraction and rotation of the tray 61 and switches between a state of covering the upper side of the closed tray 61 and an open state of opening the expansion / contraction path of the tray 61.

  On the back surface of the tray 61, a rib 65, a rib 66, a rib 67, and a rib 68 are formed. Each of the rib 65, the rib 66, the rib 67, and the rib 68 is vertically long, extends in the thickness direction of the tray 61, and receives the load of the recording paper P placed thereon. The rib 65 is formed at the left end of the back surface of the tray 61. The rib 66 is formed at a position closer to the center from the left end of the rear surface of the tray 61. The rib 67 is formed at a position closer to the center from the right end of the back surface of the tray 61. The rib 68 is formed at the right end of the back surface of the tray 61.

  An engaging portion 82 (FIGS. 7 to 9) is formed on the left side surface of the tray 61 and below the rib 65 so as to protrude from the rib 65 to the left side. An engaging portion 84 (FIG. 5) is formed on the right side surface of the tray 61 on the lower side of the rib 68 so as to protrude rightward from the rib 68. The engaging portion 82 and the engaging portion 84 are an example of an engaging portion and engage with the support 71. In the process of switching the tray 61 from the closed state to the open state, the engaging portion 82 and the engaging portion 84 switch the support 71 from the non-supported state (closed state) to the supported state (open state).

  The support 71 is an example of a support member, and can switch between a support state in which the tray 61 is supported from the back side and a non-support state in which the tray 61 is not supported, and the tray 61 can be switched from a closed state to an open state. Along with switching, the non-supporting state is switched to the supporting state. The support 71 switches between a supported state and an unsupported state by rotating. More specifically, the support 71 supports the tray 61 in an open state from the rear side (back side).

As shown in FIGS. 4 to 6 and FIG. 14, the support 71 extends in the left-right direction and is disposed on the left and right of the contact portion 71 a that contacts the rear surface of the tray 61 and the contact portion 71 a. The connecting portion 71b extends parallel to the intersecting direction and connects the contact portion 71a and the apparatus main body 2. That is, the support 71 is formed in a U-shape that is open on the front side of the apparatus.
On the inner side of the contact portion 71a of the support 71, a support surface 85 (in particular, see FIG. 14) that is a flat surface extending in the left-right direction is formed.

On the left and right sides of the support 71, there are contact surfaces 81 (FIGS. 7 to 9) that face the engaging portion 82, and contact surfaces 83 (FIG. 6) that face the engaging portion 84 (FIG. 6). Is formed.
When the handle 64 of the extension tray 62 stored in the closed tray 61 shown in FIG. 3 is pulled up, the tray 61 slides upward together with the extension tray 62 as shown in FIG. At this time, the engaging portion 82 contacts the contact surface 81, and the engaging portion 84 contacts the contact surface 83. Each of the engaging portion 82 and the engaging portion 84 lifts the contact surface 81 and the contact surface 83 as the tray 61 slides upward. As a result, as shown in FIG. 4, the support 71 rotates about a rotation axis (a protrusion 91 described later) with the apparatus main body 2 and is lifted upward to be in a support state (open state).

  When the tray 61 is tilted so that the upper end of the tray 61 moves to the rear side of the apparatus, as shown in FIG. 5, the tray 61 is supported by a support 71 lifted upward so as to receive a downward load. . At this time, the support surface 85 of the support 71 hits the rib 65, the rib 66, the rib 67, and the rib 68 of the tray 61, thereby supporting the tray 61 in the open state from the back side.

  When the handle 64 of the extension tray 62 stored in the open tray 61 shown in FIG. 5 is further pulled rearward and upward, the extension tray 62 is provided on the back surface of the tray 61 as shown in FIG. Slide in the formed groove and slide backward and upward from the tray 61.

  Next, positioning of the tray 61 and the support 71 will be described. 7-10 is a figure which shows the slide axis | shaft of the tray 61 and the support 71, and a rotating shaft. 7 is a side view showing the tray 61 and the support 71 in a closed state, FIG. 8 is a side view showing the tray 61 and the support 71 displaced upward, and FIG. 9 is opened by being displaced upward. FIG. 10 is a side sectional view showing the shaft hole 101 and the guide groove 102 of the apparatus main body 2 for positioning the tray 61 or the support 71.

  A columnar protrusion 91 is provided on the connection portion 71 b of the support 71. The protrusions 91 are formed on the connecting portions 71b on both sides of the support 71, but the protrusions 91 on one side are shown in FIGS. The other configurations shown in FIGS. 7 to 10 are also provided on both sides of the support 71, but are not shown in the same manner. The same applies to the configuration provided in the tray 61.

  A cylindrical projection 92 and a projection 93 are provided on the lower end side of the tray 61. The protrusion 92 and the protrusion 93 are arranged on the side surface of the tray 61 so that the line connecting the protrusion 92 and the protrusion 93 is parallel to the front surface and the rear surface of the tray 61.

  As shown in FIG. 10, a protrusion 91 of a support 71 is fitted into a cylindrical shaft hole 101 provided at the upper rear part of the apparatus main body 2. The support 71 is supported by the protrusion 91 and the shaft hole 101 so as to be rotatable with respect to the apparatus main body 2.

  A protrusion 92 and a protrusion 93 of the tray 61 are movably fitted in a guide groove 102 provided on the rear side of the apparatus main body 2. The guide groove 102 is an example of a guide groove that guides the protrusion, and is disposed below the shaft hole 101. The guide groove 102 guides the fitted protrusion 92 and protrusion 93. The guide groove 102 includes a positioning groove 103 formed of a vertically long groove disposed on the lower side, a positioning groove 104 disposed on the positioning groove 103 and extending from the positioning groove 103 to the front side of the apparatus, and on the positioning groove 104. The positioning groove 105 is disposed and extends upward from the positioning groove 104 and is bent rearward and upward at the end. The upper end of the positioning groove 105 is closed.

  When the tray 61 in the closed state shown in FIG. 7 slides upward, the projection 92 and the projection 93 of the tray 61 move in the positioning groove 103 extending in the vertical direction, so that the tray 61 moves upward. Will be allowed to. At this time, as shown in FIG. 7, the engaging portion 82 of the tray 61 hits the contact surface 81 of the support 71, and the engaging portion 82 pushes the contact surface 81 straight up. The support 71 rotates around the protrusion 91 fitted in the shaft hole 101 so that the rear side is lifted. Further, the cover 63 is lifted by the tray 61 that moves in the upward direction and rotates in the opening direction.

  When the tray 61 slides to the uppermost position, the protrusion 92 of the tray 61 moves to the positioning groove 105 formed in the upper portion of the guide groove 102 and abuts on the closed upper end of the positioning groove 105. Thereby, the position where the tray 61 is most pulled out is determined.

  When the tray 61 at the most pulled out position is tilted backward, as shown in FIG. 10, the protrusion 93 of the tray 61 moves forward in the positioning groove 104 extending to the front side. As a result, the position of the lower end of the opened tray 61 is determined. As shown in FIG. 9, when the tray 61 is opened, the support 71 lifted on the rear side comes into contact with the rear surface of the tray 61 to support the tray 61.

  As described above, the protrusions 92 and 93 are provided on the side of the tray 61, the guide grooves 102 for guiding the plurality of protrusions 92 and 93 are provided, and the protrusions 92 and 93 are guided by the guide grooves 102. The open state and the closed state can be switched.

  The guide groove 102 extends in the vertical direction, positions the protrusions 92 and 93 below the guide groove 102 and positions the positioning groove 103 for holding the tray 61 in a closed state, and positions the protrusions 92 and 93 above the guide groove 102. Thus, positioning grooves 104 and 105 for holding the tray 61 in the open state are provided, respectively, and the tray 61 can take an inclined posture in the open state and take a vertical posture in the closed state.

  Next, the support of the tray 61 by the support 71 will be described in more detail with reference to FIGS. 11 is a side sectional view showing the tray 61 and the support 71 in a closed state, FIG. 12 is a side sectional view showing the tray 61 and the support 71 that have been slid, and FIG. 13 is a state in which the tray 61 is slid and opened. 14 is a side sectional view showing the tray 61 and the support 71, and FIG. 14 is a sectional view showing a section of a portion where the support 71 supporting the tray 61 and the tray 61 abut.

  As shown in FIG. 11, when the tray 61 is closed, a hook-shaped opening 121 that opens downward and is provided on the rear surface of the tray 61 is provided on the front surface of the support 71. It meshes with a hook-shaped stopper 122 that opens upward. This prevents the support 71 from opening later when the tray 61 is closed. When the tray 61 is closed, the tray 61 is positioned behind the hopper 16 as shown in FIG.

  When the tray 61 is slid upward, the hook-shaped opening stopper 121 that opens downward moves upward, so that the engagement between the opening stopper 121 and the opening stopper 122 is released. As shown in FIG. 12, since the engaging portion 82 and the engaging portion 84 lift the contact surface 81 and the contact surface 83, the support 71 rotates around the rotation axis composed of the protrusion 91 and the shaft hole 101. And lift it to the back.

  When the tray 61 in the pulled-out position is tilted backward, the support surface 85 of the support 71 hits the rear surface of the tray 61 as shown in FIG. 13, and the support 71 supports the tray 61. When the tray 61 is in the open state and the support 71 is in the support state, the support 71 is in a non-projecting state from the tray 61 in the front-rear direction. At this time, as shown in FIG. 13, the lower end of the tray 61 and the upper end of the hopper 16 are close enough to prevent the movement of the hopper 16, and the front surface of the tray 61 and the front surface of the hopper 16 are Form a plane. Thereby, the tray 61 and the hopper 16 can support the plurality of recording sheets P placed thereon in an inclined posture.

  As shown in FIG. 14, when the support 71 supports the tray 61, the support surface 85 of the support 71 abuts against the rib 65, the rib 66, the rib 67, and the rib 68 formed on the rear surface of the tray 61. . Since the rib 65, the rib 66, the rib 67, and the rib 68 extending in the thickness direction of the tray 61 receive the load of the recording paper P placed on the tray 61, the support surface 85 of the support 71 receives this load. It will be. Since the ribs 65 and 68 are disposed at the end of the tray 61 and the ribs 66 and 67 are disposed near the center of the tray 61, the support 71 is placed near the center of the tray 61 and the load applied to the end of the tray 61. Such load can be received. Thereby, the deformation of the tray 61 due to the load can be further reduced.

  The support 71 can support the tray 61 at least at a position closer to the center from the end of the tray 61 in the direction intersecting the feeding direction of the recording paper P placed on the tray 61. Further, the support 71 can have a shape extending across the entire back surface of the tray 61 in the intersecting direction.

  The support 71 may be configured to support the tray 61 by abutting against the rib 65 and the rib 66 and the rib 67 and the rib 68, respectively, as a shape divided into left and right.

  As described above, the tray 61 that can be switched between the open state where the recording paper P to be fed is placed on the feeding device 10 and the closed state where the recording paper P is closed, and the tray 61 on the back surface. The support state that is supported from the side and the non-support state that does not support the tray 61 can be switched, and the support that is switched from the non-support state to the support state when the tray 61 is switched from the closed state to the open state. 71 is provided. Accordingly, since the tray 61 on which the recording paper P is placed is supported from the back side by the support 71, the tray 61 has improved resistance to load and prevents bending when a large number of recording papers P are placed. Or the bending thereof can be suppressed, and as a result, a large number of recording sheets P can be reliably placed.

  Further, in this embodiment, the support 71 is switched between the support state and the non-support state by rotating, so that the state switching of the support 71 can be realized with a simple structure and at a low cost.

  In the present embodiment, the tray 61 is provided with an engaging portion 82 that engages with the support 71, and the engaging portion 82 supports the support 71 from the unsupported state in the process of switching the tray 61 from the closed state to the open state. Since the state is switched, the means for switching the state of the support 71 in conjunction with the state switching of the tray 61 can be simplified in structure and obtained at low cost.

  Further, in the present embodiment, the projections 92 and 93 provided on the side of the tray 61 and the guide groove 102 for guiding the projections 92 and 93 are provided, and the projections 92 and 93 are guided by the guide groove 102. Since the tray 61 is switched between the open state and the closed state, the structure for switching the state of the tray 61 can be simplified and obtained at low cost.

  Further, in the present embodiment, the guide groove 102 extends in the vertical direction, positions the protrusions 92 and 93 at the lower portion and positions the positioning groove 103 for holding the tray 61 in the closed state, and positions the protrusions 92 and 93 at the upper portion. Since the positioning grooves 104 and 105 for holding the tray 61 in the open state are provided, and the tray 61 takes an inclined posture in the open state and takes a vertical posture in the closed state, the tray 61 slides in the vertical direction. The state is switched through both the rotation operation and the rotation operation, so that the tray 61 can be prevented from protruding upward in the closed state of the tray 61, and the apparatus can be downsized.

  In the present embodiment, the support 71 supports the tray 61 at a position nearer to the center from the end of the tray 61 in the direction intersecting the feeding direction of the recording paper P placed on the tray 61. The bending of the tray 61 in the intersecting direction can be effectively suppressed.

  Further, in the present embodiment, the support 71 has a shape extending over the entire area of the back surface of the tray 61 in the intersecting direction, so that the tray 61 can be supported in a wide range or more positions in the intersecting direction. As a result, the deflection of the tray 61 can be more reliably suppressed.

  Further, in the present embodiment, when the tray 61 is in the open state and the support 71 is in the support state, the support 71 is not protruded from the tray 61 in the front-rear direction of the apparatus. The degree of freedom of the installation location of the device is improved without expanding the space.

  DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 apparatus main body, 3 scanner unit, 4 paper cassette, 5 discharge receiving tray, 6 hopper, 6a oscillating shaft, 7 operation panel, 8 separation roller, 10 feeding device, 12 frame, 14 feeding roller , 15 shaft, 16 hopper, 17 separation roller, 30 first feeding roller, 32 second feeding roller, 34 first intermediate roller, 36 second intermediate roller, 37a to 37d driven roller, 39 transport roller pair, 41 support Member, 42 first discharge roller pair, 43 second discharge roller pair, 45 recording head, 46 carriage, 61 tray, 62 extension tray, 63 cover, 64 handle, 65 rib, 66 rib, 67 rib, 68 rib, 71 support 81 Contact surface, 82 Engagement part, 83 Contact surface, 84 Parts, 85 support surface 91 protrusions 92 protruding, 93 protrusion, 101 shaft hole 102 guide groove 103 positioning groove, 104 positioning groove, 105 positioning grooves, 121 stop opening, 122 opening stop, P recording paper

Claims (11)

A medium placement unit that takes an inclined posture and is capable of switching between an open state in which a medium to be fed is placed and a closed state in which the medium is closed;
A support state in which the medium placement unit can be supported from the back side by contacting a part of the back side opposite to the placement surface on which the medium is placed in the medium placement unit, and the medium placement unit and unsupported that does not support, as well as a possible operation of Ru switched, automatically turn the from the closed state of the medium placing portion with the switching of the said open state from a non-supported state with the support state operation was carried out that, above the support state in the direction of the reaction force received from the medium placing portion and the support member in which the displacement is regulated,
A medium feeding device comprising: 2. The medium feeding device according to claim 1, wherein the support member is switched between the support state and the non-support state by rotating with the movement of the medium placement unit.
A medium feeding device. 3. The medium feeding device according to claim 1, wherein the medium placing portion includes an engaging portion that engages with the support member,
In the process of switching the medium placement unit from the closed state to the open state, the engagement unit switches the support member from the non-support state to the support state.
A medium feeding device. The medium feeding device according to claim 1, wherein the medium placement unit includes an engagement unit that engages with the support member.
The support member is switched between the support state and the non-support state by rotating, and in the non-support state, a rotation fulcrum is provided at the upper portion, and a contact surface that can be engaged with the engagement portion is provided at the lower portion. Have
The contact surface is formed of an overhang-shaped surface in which the lower part extends vertically upward from the device back side to the device front side,
When the medium placement unit is displaced vertically upward from the state in which the medium placement unit is in the closed state and the support member is in the unsupported state toward the open state, the engagement unit is The support member is switched to the support state by pushing the contact surface back to the device rear side and rotating the support member to the device rear side.
A medium feeding device. The medium feeding device according to any one of claims 1 to 4, wherein a plurality of protrusions provided on a side portion of the medium placement unit;
A guide groove for guiding the plurality of protrusions,
The medium placement portion is switched between the open state and the closed state by the protrusion being guided by the guide groove.
A medium feeding device. 6. The medium feeding device according to claim 5, wherein the guide groove extends in a vertical direction, and includes a first positioning portion that positions the protrusion on a lower portion and holds the medium placement portion in the closed state. Each having a second positioning part for positioning the protrusion and holding the medium placing part in the open state,
The medium placement portion takes the inclined posture when the protrusion is positioned by the second positioning portion and enters the open state, and takes a vertical posture when the protrusion is positioned by the first positioning portion. The closed state,
A medium feeding device. The medium feeding device according to claim 6, wherein the protrusion positioned by the second positioning portion includes a first protrusion positioned on the lower side and a second protrusion positioned on the upper side. By positioning the protrusion and the second protrusion on the second positioning portion, the medium placement portion takes the inclined posture,
The distance from the first protrusion to the supported position where the medium placement unit is supported by the support member is longer than the distance from the supported position to the upper end of the medium placement unit.
A medium feeding device. In the medium feeding apparatus according to any one of claims 1 to 7, wherein the support member is a shape that saddled the medium placing portion from the mounting surface side, in the medium placing portion Supporting the medium placement unit at a position excluding at least an end of the medium placement unit in a medium width direction intersecting a feeding direction of the placed medium;
A medium feeding device. The medium feeding device according to claim 8 , wherein the support member has a shape extending across the entire back surface of the medium mounting portion in the medium width direction.
A medium feeding device. The medium feeding device according to any one of claims 1 to 9 , wherein when the medium placement unit is in the open state and the support member is in the support state, the support member is a device. In a front-rear direction, the medium placement portion is in a non-projecting state
A medium feeding device. Recording means for recording on a medium;
The medium feeding device according to any one of claims 1 to 10 , wherein a medium is fed toward the recording unit.
Recording device.

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