JP7205070B2 - Ejector and recording device - Google Patents

Description

The present invention relates to a discharge device and a recording device for discharging media such as paper.

Japanese Patent Application Laid-Open No. 2002-200001 describes a sheet discharge device that suppresses the sheet from sagging by discharging the sheet, which is a type of medium, while curving the sheet as an example of the discharge device. The sheet ejection device has a guide member that lifts and supports both ends of the sheet to be ejected.

Japanese Patent Application Laid-Open No. 2003-118911

In the sheet discharge device described in Japanese Patent Application Laid-Open No. 2002-200310, the guide member is arranged at a position capable of supporting both ends of the maximum size sheet that can be discharged by the sheet discharge device. Therefore, when the size of the sheet is small, the sheet discharging device discharges the sheet while lifting one end of the sheet. In this case, depending on the size of the sheet, it may not be possible to suppress the drooping of the sheet.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a discharge device and a recording device that can suppress the drooping of a medium.

Means for solving the above problems and their effects will be described below.
A discharge device for solving the above-described problems includes a discharge portion for discharging a medium, and a pair of support portions for supporting the medium discharged by the discharge portion so as to lift two locations sandwiching the center in the width direction of the medium. A plurality of the pair of support portions are provided so as to correspond to a plurality of media having different sizes.

According to this configuration, the medium discharged by the discharge section is curved in the width direction by being supported by the pair of support sections. This imparts stiffness to the medium. A plurality of pairs of support portions are provided so as to correspond to a plurality of media of different sizes. Therefore, stiffness can be imparted to a plurality of media having different sizes. Therefore, sagging can be suppressed for media of different sizes.

In the discharging device described above, the support section includes a first support section and a second support section having different heights for supporting the medium, and the first support section is arranged in a higher position than the second support section. It is preferable that at least one pair is provided so as to increase the height for supporting the medium, and positioned so as to sandwich the second support portion in the width direction.

According to this configuration, when the pair of first support portions positioned so as to sandwich the second support portion support the medium, the second support portions support portions of the medium supported by the pair of first support portions, respectively. Support the part in between. The height at which the second support supports the medium is lower than the height at which the first support supports the medium. Therefore, the portion of the medium that is supported by the second support portion drops downward. That is, the medium can be easily lifted by the first supporting portion. Thereby, stiffness can be imparted to the medium.

In the ejection device, the ejection unit has ejection rollers that eject the medium by rotating while sandwiching the medium, and the support unit is positioned higher than the position where the ejection rollers sandwich the medium. It is preferably provided to support said medium.

According to this configuration, the medium ejected by the ejecting portion is supported by the supporting portion, so that the medium extends upward from below. By ejecting the medium in an attitude of extending upward from below, the medium is less likely to hang down than in the case of ejecting the medium in an attitude of extending downward from above. That is, it is possible to suppress the drooping of the medium.

In the discharge device described above, it is preferable that the support portion is configured by a projection projecting upward.
According to this configuration, the support portion can be configured simply.

In the discharging device described above, it is preferable that the upper end portion of the projection has a rounded shape when viewed in the width direction.
With this configuration, it is possible to reduce damage to the medium caused by rubbing against the protrusions.

In the ejection device, it is preferable that the upper end portion of the projection has a rounded shape when viewed from the ejection direction in which the medium is ejected.
With this configuration, it is possible to reduce damage to the medium caused by rubbing against the protrusions.

A recording apparatus for solving the above problems includes a recording unit for recording an image on a medium, a discharge unit for discharging the medium recorded by the recording unit, and a center in the width direction of the medium discharged by the discharge unit. and a pair of supporting portions for supporting two portions sandwiching the medium so as to lift the supporting portions.

According to this configuration, the same effect as that of the discharge device described above can be obtained.

1 is a perspective view showing an embodiment of a recording device that is an example of a discharge device; FIG. FIG. 2 is a side sectional view schematically showing the internal structure of the recording apparatus; The front view which shows a discharge port. FIG. 4 is a front view schematically showing a state when an A1 size medium is ejected; FIG. 4 is a front view schematically showing a state when a B2 size medium is ejected; FIG. 4 is a front view schematically showing a state when an A2 size medium is ejected; FIG. 4 is a front view schematically showing a state when an A3 size medium is ejected; The front view which shows the example of a change of a recording device typically. FIG. 10 is a front view schematically showing another modification of the recording device;

An embodiment of a recording apparatus, which is an example of a discharge apparatus, will be described below with reference to the drawings. A recording apparatus is, for example, an inkjet printer that records images such as characters and photographs by ejecting ink, which is an example of liquid, onto a medium such as paper. In this embodiment, the recording device is arranged in a horizontal plane.

As shown in FIG. 1, a recording device 11, which is an example of an ejection device, has a housing 12. As shown in FIG. The housing 12 is formed in a rectangular parallelepiped shape. The housing 12 has a discharge port 13 for discharging the medium 99 from inside the housing 12 toward the outside of the housing 12 . The outlet 13 opens to the front surface of the housing 12 . The front surface of the housing 12 is a surface that spreads in the width direction X and the vertical direction Z of the housing 12 .

The discharge port 13 has a slit-like shape with a small gap on the front surface of the housing 12 so as to allow the medium 99 to be discharged while preventing foreign objects (for example, three-dimensional objects such as pens) from entering the housing 12 from the outside. and extends in the width direction X. Images are recorded in the housing 12 on the medium 99 supplied into the housing 12 . A medium 99 on which an image is recorded is ejected from the ejection port 13 to the outside of the housing 12 . The width direction X of the housing 12 matches the width direction of the medium 99 . Therefore, in the present embodiment, the width direction X of the housing 12 and the width direction of the medium 99 are simply referred to as the width direction X without distinction.

The housing 12 has an operation panel 14 for operating the recording device 11, and a first cover 15 and a second cover 16 that can be opened and closed. The operation panel 14 , first cover 15 and second cover 16 are located on the upper surface of the housing 12 . The upper surface of the housing 12 is a surface that spreads in the width direction X of the housing 12 and the depth direction Y of the housing 12 . In this embodiment, the upper surface of the housing 12 is a surface along the horizontal plane. The depth direction Y of the housing 12 is a direction from the front side of the housing 12 toward the rear side opposite to the front side. Therefore, the width direction X, the depth direction Y, and the vertical direction Z indicate different directions.

The operation panel 14 and the first cover 15 are positioned near the front of the housing 12 on the upper surface of the housing 12 . The operation panel 14 and the first cover 15 are positioned adjacent to each other in the width direction X on the upper surface of the housing 12 . The second cover 16 is positioned on the upper surface of the housing 12 toward the rear surface on the side opposite to the front side of the housing 12 . In FIG. 1, the first cover 15 and the second cover 16 are closed. The first cover 15 and the second cover 16 can be opened and closed around the ends closer to the rear surface.

When the first cover 15 is opened, the inside of the housing 12 is exposed. By opening the first cover 15, for example, the inside of the housing 12 can be maintained. When the second cover 16 is opened, the supply port 17 through which the medium 99 can be supplied into the housing 12 is exposed. When the second cover 16 is opened, the inside of the housing 12 is exposed through the supply port 17 .

As shown in FIG. 2 , the recording apparatus 11 includes a guide member 21 that guides the supplied medium 99 and a transport section 22 that transports the medium 99 guided by the guide member 21 . The recording apparatus 11 includes a support base 23 that supports the medium 99 transported by the transport unit 22 and a recording unit 24 that records an image on the medium 99 supported by the support base 23 . The recording device 11 includes a discharge section 25 for discharging the medium 99 and a cutting section 26 capable of cutting the medium 99 recorded by the recording section 24 . The recording apparatus 11 includes a support section 27 that supports the medium 99 ejected by the ejection section 25 so as to lift it. In the recording device 11 , the ejection section 25 ejects the medium 99 recorded by the recording section 24 . The guide member 21 , the transport section 22 , the support table 23 , the recording section 24 , the discharge section 25 , the cutting section 26 and the support section 27 are accommodated in the housing 12 .

The recording device 11 can be loaded with a roll body R in which the medium 99 is rolled up in a cylindrical shape. The roll body R is loaded into the housing 12 through the supply port 17, for example. The loaded roll body R is positioned closer to the rear surface in the housing 12 . When the roll body R rotates, the medium 99 is paid out. The medium 99 fed from the roll body R is, for example, continuous paper. In the recording apparatus 11 of the present embodiment, the medium 99 can be supplied via the supply port 17 separately from the medium 99 fed out from the roll body R, as indicated by the chain double-dashed line in FIG. The medium 99 supplied from the supply port 17 is cut paper, for example.

The medium 99 unwound from the roll body R and the medium 99 supplied from the supply port 17 are discharged from the discharge port 13 . That is, the medium 99 is conveyed from the rear side of the housing 12 toward the front side. Therefore, the transport direction in which the medium 99 is transported is the direction from the rear surface side to the front surface side of the housing 12 . In this embodiment, the transport direction in which the medium 99 is transported and the ejection direction A in which the medium 99 is ejected match. The transport direction and the discharge direction A are directions opposite to the depth direction Y, which are directed from the rear surface side to the front surface side of the housing 12 .

The guide member 21 guides the medium 99 supplied from the roll body R and the medium 99 supplied from the supply port 17 toward the support base 23 . The transport unit 22 has a pair of rotatable transport rollers 31 . The paired two transport rollers 31 are positioned so as to sandwich the medium 99 from above and below. The transport roller 31 is positioned between the guide member 21 and the support base 23 in the discharge direction A. As shown in FIG. The transport unit 22 transports the medium 99 toward the support base 23 by rotating with the transport rollers 31 sandwiching the medium 99 . The support base 23 supports the medium 99 from below.

The recording unit 24 has a head 33 that ejects liquid such as ink from nozzles 32 , a carriage 34 that mounts the head 33 , and a guide shaft 35 that supports the carriage 34 . The head 33 is mounted on the carriage 34 such that the nozzle surface 36 on which the nozzles 32 are formed faces the support base 23 . The carriage 34 can reciprocate along the guide shaft 35 . The guide shaft 35 extends in the width direction X. As shown in FIG. The head 33 ejects the liquid onto the medium 99 supported by the support table 23 while moving in the width direction X together with the carriage 34 . Thereby, the recording unit 24 records the image on the medium 99 .

The discharge section 25 has a pair of rotatable relay rollers 37 and a pair of discharge rollers 38 . The paired two intermediate rollers 37 and the paired two discharge rollers 38 are positioned to sandwich the medium 99 from above and below. In the housing 12 , the relay roller 37 is positioned closer to the recording section 24 and the discharge roller 38 is positioned closer to the discharge port 13 . The ejection unit 25 ejects the medium 99 by rotating with the intermediate roller 37 or the ejection roller 38 sandwiching the medium 99 . The relay roller 37 sends out the medium 99 toward the ejection roller 38 . The ejection roller 38 ejects the medium 99 from the ejection port 13 .

The cutting part 26 has a pair of rotatable rotary blades 39 . The paired two rotary blades 39 partially overlap each other and are positioned so as to be able to sandwich the medium 99 from above and below. The cutting unit 26 cuts the medium 99 by moving in the width direction X while the rotary blade 39 sandwiches and cuts the medium 99 vertically. The cutting section 26 is positioned between the intermediate roller 37 and the discharge roller 38 . The cutting section 26 cuts the medium 99 sandwiched between the relay roller 37 and the discharge roller 38 .

The cutting section 26 cuts the medium 99 to a desired length. For example, when the medium 99 recorded by the recording unit 24 is continuous paper supplied from the roll body R, the cutting unit 26 cuts the medium 99 . For example, if the medium 99 recorded by the recording unit 24 is a cut sheet supplied from the supply port 17, the cutting unit 26 does not need to cut the medium 99. FIG.

The support portion 27 is attached to the outlet 13 . The support portion 27 supports the medium 99 discharged by the discharge roller 38 from below. The support portion 27 is provided so as to support the medium 99 at a position higher than the position where the discharge rollers 38 sandwich the medium 99 . Therefore, the medium 99 ejected from the ejection port 13 is inclined upward in the ejection direction A from below. That is, the medium 99 discharged from the discharge port 13 is oriented so that the downstream portion, which is the leading end, faces upward with respect to the horizontal plane.

In this embodiment, the support portion 27 is configured by a protrusion 41 that protrudes upward. The protrusion 41 is positioned to protrude upward from the lower edge of the discharge port 13 . The projection 41 has, in the discharge direction A, an inclined surface 42 that is inclined upward and a curved surface 43 that is curved downward. The inclined surface 42 and the curved surface 43 are formed as continuous surfaces on the protrusion 41 . The inclined surface 42 is located upstream of the curved surface 43 in the discharge direction A. As shown in FIG. The inclined surface 42 scoops up the tip of the discharged medium 99 upward. Curved surface 43 supports medium 99 scooped up by inclined surface 42 .

An upper end portion 44 of the projection 41 is rounded when viewed in the width direction X. As shown in FIG. The upper end portion 44 is curved in the discharge direction A in an arc shape. As a result, damage to the medium 99 caused by rubbing between the upper end portion 44 of the protrusion 41 and the medium 99 can be reduced. In this embodiment the upper end portion 44 of the protrusion 41 is formed by a curved surface 43 .

The upper end portion 44 of the protrusion 41 is positioned higher in the vertical direction Z than the position where the medium 99 is sandwiched between the discharge rollers 38 . As a result, the medium 99 is ejected from the ejection port 13 with the leading end facing upward.

As shown in FIG. 3, a plurality of support portions 27 are provided so as to be aligned in the width direction X. As shown in FIG. The plurality of support portions 27 are positioned at predetermined intervals in the width direction X in the discharge port 13 . Among the plurality of support portions 27 , the pair of support portions 27 support the medium 99 ejected by the ejection portion 25 so as to lift two locations sandwiching the center in the width direction X. As shown in FIG. That is, the pair of support portions 27 support so as to lift a portion on the right side and a portion on the left side of the center in the width direction X with respect to the medium 99 when viewed from the discharge direction A. FIG.

It is preferable that the pair of support portions 27 support the medium 99 discharged by the discharge portion 25 so as to lift both ends of the medium 99 in the width direction X. As shown in FIG. Therefore, the support portion 27 has an end portion on the right side of the center in the width direction X with respect to the medium 99 to be discharged and an end portion on the left side of the center in the width direction X with respect to the medium 99 to be discharged. Support to lift. In this case, the supporting portion 27 is located near the right end of the medium 99 to be discharged from the center in the width direction X and near the left end of the medium 99 to be discharged from the center in the width direction X. and are preferably in supportable contact with each other. When the support portion 27 is arranged in this way, the medium 99 to be discharged is lifted from the center toward both ends in the width direction X when viewed from the discharge direction A, and is curved concavely. That is, the medium 99 is curved in the width direction X such that both ends of the medium 99 are raised upward and the center of the medium 99 is lowered.

A plurality of pairs of support portions 27 are provided so as to correspond to a plurality of media 99 of different sizes. That is, the pair of support portions 27 are provided corresponding to the medium 99 having a size recordable by the recording device 11 . By providing a plurality of pairs of support portions 27 , the recording apparatus 11 can discharge a plurality of media 99 of different sizes while lifting two locations sandwiching the center in the width direction X of the media 99 .

In this embodiment, the plurality of support portions 27 are positioned so as to support the ends in the width direction X of the plurality of media 99 having different sizes. That is, the plurality of support portions 27 are positioned at positions where the recording apparatus 11 can support the medium 99 of a recordable size so as to lift the ends on one side and the other side in the width direction X. As shown in FIG. Therefore, the support portions 27 are located at positions corresponding to both ends in the width direction X of the medium 99 of each size recordable by the recording device 11 . As a result, the recording apparatus 11 ejects the media 99 while lifting both ends in the width direction X of the plurality of media 99 having different sizes.

The support portion 27 includes a first support portion 51 and a second support portion 52 having different heights for supporting the medium 99 . At least one pair of first support portions 51 is provided so that the height for supporting the medium 99 is higher than that of the second support portions 52 . In this embodiment, four first support portions 51 are provided and one second support portion 52 is provided.

The first support portion 51 is positioned so as to sandwich the second support portion 52 in the width direction X. As shown in FIG. In this embodiment, when viewed from the discharge direction A, one first support portion 51 is provided on the right side of the second support portion 52 and three are provided on the left side of the second support portion 52 . That is, the first support portion 51 , the second support portion 52 , the first support portion 51 , the first support portion 51 , and the first support portion 51 are positioned in order in the width direction X in the discharge port 13 . The width direction X is the direction from the right side to the left side when viewed from the discharge direction A, that is, when the recording apparatus 11 is viewed from the front.

The first support portion 51 and the second support portion 52 are configured by the protrusions 41 . The upper end portion 44 of the protrusion 41 has a rounded shape when viewed from the ejection direction A. As shown in FIG. The upper end portion 44 is curved in the width direction X in an arc shape. As a result, damage to the medium 99 caused by rubbing between the upper end portion 44 of the protrusion 41 and the medium 99 can be reduced.

A plurality of protrusions 41 are provided in the discharge port 13 . The plurality of protrusions 41 are positioned so as to be aligned in the width direction X. As shown in FIG. In this embodiment, nine projections 41 are provided on the discharge port 13 . The nine protrusions 41 provided in the discharge port 13 are sequentially arranged in the width direction X as the first protrusion 61, the second protrusion 62, the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65, the sixth protrusion 66, They are referred to as seventh protrusion 67 , eighth protrusion 68 and ninth protrusion 69 .

In this embodiment, the protrusion amount of the second protrusion 62 is smaller than the protrusion amounts of the first protrusion 61, the seventh protrusion 67, the eighth protrusion 68, and the ninth protrusion 69 by 0.5 mm. That is, in the vertical direction Z, the upper end portion 44 of the second protrusion 62 is located at a position lower than the upper end portions 44 of the first protrusion 61, the seventh protrusion 67, the eighth protrusion 68, and the ninth protrusion 69 by 0.5 mm. do.

The protrusion amounts of the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65 and the sixth protrusion 66 are compared with the protrusion amounts of the first protrusion 61, the seventh protrusion 67, the eighth protrusion 68 and the ninth protrusion 69. , is smaller by 1.5 mm. That is, in the vertical direction Z, the upper end portions 44 of the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65 and the sixth protrusion 66 are the first protrusion 61, the seventh protrusion 67, the eighth protrusion 68 and the ninth protrusion. It is positioned 1.5 mm lower than the upper end portion 44 of 69 .

The medium 99 ejected by the ejection portion 25 contacts the upper end portion 44 of the projection 41 . At this time, the protrusion 41 that supports the medium 99 so as to lift it functions as the support portion 27 among the plurality of protrusions 41 . Therefore, the first protrusion 61, the second protrusion 62, and the seventh protrusion having a larger protrusion amount than the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65, and the sixth protrusion 66 having the smallest protrusion amount among the plurality of protrusions 41 67 , the eighth projection 68 and the ninth projection 69 function as the support portion 27 . In this embodiment, the first projection 61 , the seventh projection 67 , the eighth projection 68 and the ninth projection 69 constitute the first support portion 51 . The second protrusion 62 constitutes the second support portion 52 .

When the recording apparatus 11 ejects the medium 99 supplied from the roll body R, the medium 99 is ejected from the ejection port 13 so that the first projection 61 supports the right end of the medium 99, which is the right side when the recording apparatus 11 is viewed from the front. 99 is discharged. When ejecting the medium 99 supplied from the roll body R, the recording apparatus 11 ejects the medium 99 so that the positions of the right edges of the medium 99 match regardless of the size of the medium 99 .

When ejecting the medium 99 supplied from the supply port 17 , the recording apparatus 11 ejects the medium 99 from the ejection port 13 so that the right end of the medium 99 is supported by the second projection 62 . When ejecting the medium 99 supplied from the supply port 17 , the recording apparatus 11 ejects the medium 99 so that the right end position of the medium 99 matches regardless of the size of the medium 99 . The recording apparatus 11 may eject the medium 99 supplied from the supply port 17 so that the right end of the medium 99 is supported by the first protrusion 61 . That is, the recording apparatus 11 discharges the medium 99 so that the right end position of the medium 99 is aligned regardless of whether the medium 99 is supplied from the roll body R or the medium 99 is supplied from the supply port 17. good.

The recording apparatus 11 can be loaded with a roll body R in which a medium 99 having a width in the width direction X of A1 size is wound. The recording apparatus 11 can be loaded with a roll body R in which media 99 of B2 size and A2 size are wound in addition to A1 size. The recording device 11 can supply the medium 99 of A3 size from the supply port 17 . In the width direction X, the width of the A1 size medium 99 is 594 mm. In the width direction X, the width of the B2 size medium 99 is 515 mm. In the width direction X, the width of the A2 size medium 99 is 420 mm. In the width direction X, the width of the A3 size medium 99 is 297 mm. Recording device 11 may be configured to accommodate media 99 of other sizes.

Next, the operation of the recording apparatus 11 configured as described above will be described.
When the medium 99 is discharged by the discharge section 25, the downstream portion, which is the tip of the discharged medium 99, may hang down. At this time, the upstream portion of media 99 is pulled by the hanging downstream portion. If the upstream portion is pulled, the orientation of the media 99 may tilt. If the posture of the medium 99 is tilted, there is a possibility that the ejection section 25 cannot eject the medium 99 straight. In particular, in the recording apparatus 11 of the present embodiment, if the posture of the medium 99 is tilted, the cutting section 26 may not be able to cut the medium 99 straight. If the posture of the medium 99 is tilted, the recording unit 24 may not be able to record the image correctly.

The recording apparatus 11 of the present embodiment includes a pair of support portions 27 that support two locations sandwiching the center in the width direction X of the medium 99 to be ejected so as to lift it. The medium 99 is curved in the width direction X when the pair of support portions 27 supports the medium 99 . The medium 99 supported by the pair of support portions 27 curves concavely or undulatingly when viewed from the front of the recording apparatus 11 . Such bending imparts stiffness to the medium 99 . This makes it difficult for the downstream portion of the discharged medium 99 to sag. The stiffness of the medium 99 means stiffness and rigidity of the medium 99 .

The longer the width in the width direction X of the discharged medium 99, the easier the downstream portion of the medium 99 hangs down. In order to effectively impart stiffness to the medium 99, the medium 99 should be curved so that both ends in the width direction X of the medium 99 are lifted. Therefore, the pair of support portions 27 in this embodiment supports both ends of the medium 99 in the width direction X so as to be lifted.

As shown in FIG. 4, when an A1 size medium 99 is supplied, the recording apparatus 11 is configured such that the right end of the medium 99 is supported by the first protrusion 61 and the left end of the medium 99 is supported by the ninth protrusion 69. , eject its medium 99 . The projection amounts of the second projection 62, the third projection 63, the fourth projection 64, the fifth projection 65, and the sixth projection 66 positioned between the first projection 61 and the ninth projection 69 in the width direction X are It is smaller than the protrusion amount of the protrusion 61 and the ninth protrusion 69 . Therefore, in the width direction X, the medium 99 curves such that a portion between the portion supported by the first protrusion 61 and the portion supported by the ninth protrusion 69 drops downward. That is, a portion of the medium 99 between the portion supported by the first protrusion 61 and the portion supported by the ninth protrusion 69 is wider than the upper end portion 44 of the first protrusion 61 and the upper end portion 44 of the ninth protrusion 69 . is also positioned downward in the vertical direction Z.

The A1 size medium 99 is curved in the width direction X such that the portion supported by the first protrusion 61 and the portion supported by the ninth protrusion 69 are raised. As a result, when the A1 size medium 99 is supplied, the first projection 61 as the first support portion 51 and the ninth projection 69 as the first support portion 51 support both ends of the medium 99 so as to lift them. It functions as a pair of support parts 27 to carry out. The first projection 61 and the ninth projection 69 are a pair of support portions 27 that support the medium 99 to be ejected so as to lift two locations sandwiching the center in the width direction X. As shown in FIG.

As shown in FIG. 5, when a medium 99 of B2 size is supplied, the recording apparatus 11 is arranged such that the right end of the medium 99 is supported by the first protrusion 61 and the left end of the medium 99 is supported by the eighth protrusion 68. , eject its medium 99 . At this time, the medium 99 bends in the width direction X such that a portion between the portion supported by the first protrusion 61 and the portion supported by the eighth protrusion 68 drops. That is, the portion of the medium 99 between the portion supported by the first protrusion 61 and the portion supported by the eighth protrusion 68 is larger than the upper end portion 44 of the first protrusion 61 and the upper end portion 44 of the eighth protrusion 68 . is also positioned downward in the vertical direction Z.

The B2 size medium 99 is curved in the width direction X such that the portion supported by the first protrusion 61 and the portion supported by the eighth protrusion 68 are raised. As a result, when the B2 size medium 99 is supplied, the first protrusion 61 as the first support portion 51 and the eighth protrusion 68 as the first support portion 51 support both ends of the medium 99 so as to lift them. It functions as a pair of support parts 27 to carry out. The first projection 61 and the eighth projection 68 are a pair of support portions 27 that support the medium 99 to be discharged so as to lift two locations across the center in the width direction X. As shown in FIG.

As shown in FIG. 6, for example, when an A2 size medium 99 is supplied, the recording apparatus 11 is arranged such that the right end of the medium 99 is supported by the first protrusion 61 and the left end of the medium 99 is supported by the seventh protrusion 67. , eject its medium 99 . At this time, the medium 99 bends in the width direction X such that a portion between the portion supported by the first protrusion 61 and the portion supported by the seventh protrusion 67 drops. That is, the portion of the medium 99 between the portion supported by the first projection 61 and the portion supported by the seventh projection 67 is wider than the upper end portion 44 of the first projection 61 and the upper end portion 44 of the seventh projection 67 . is also positioned downward in the vertical direction Z.

The A2 size medium 99 is curved in the width direction X such that the portion supported by the first protrusion 61 and the portion supported by the seventh protrusion 67 are raised. As a result, when the medium 99 of A2 size is supplied, the first projection 61 as the first support portion 51 and the seventh projection 67 as the first support portion 51 support both ends of the medium 99 so as to lift them. It functions as a pair of support parts 27 to carry out. The first protrusion 61 and the seventh protrusion 67 are a pair of support portions 27 that support the medium 99 to be discharged so as to lift two portions sandwiching the center in the width direction X. As shown in FIG.

By providing the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65, and the sixth protrusion 66, the height difference in the vertical direction Z of the medium 99 curved in the width direction X can be reduced. For example, if the medium 99 is curved in a concave shape, a height difference is generated between both end portions and the central portion. When the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65, and the sixth protrusion 66 are not provided, the amount of recession of the central portion of the medium 99 increases. As the amount of recession of the medium 99 increases, the difference in height between both end portions and the central portion of the medium 99 increases.

When the medium 99 is concavely curved so that the height difference between the both end portions and the central portion of the medium 99 is large, the length of the discharge port 13 in the vertical direction Z must be increased accordingly. Therefore, the length of the discharge port 13 in the vertical direction Z can be shortened by curving the medium 99 so as to reduce the height difference.

The third protrusion 63 , fourth protrusion 64 , fifth protrusion 65 and sixth protrusion 66 support a portion of the medium 99 that falls downward. The upper end portions 44 of the third protrusion 63, fourth protrusion 64, fifth protrusion 65 and sixth protrusion 66 are compared with the upper end portions 44 of the first protrusion 61, seventh protrusion 67, eighth protrusion 68 and ninth protrusion 69. and wide. By doing so, the contact area between the upper end portions 44 of the third protrusion 63, the fourth protrusion 64, the fifth protrusion 65, and the sixth protrusion 66 and the medium 99 is increased. In this case, the third protrusion 63, fourth protrusion 64, fifth protrusion 65, and sixth protrusion 66 can stably support the medium 99. FIG.

As shown in FIG. 7, when the medium 99, which is A3 size slip paper, for example, is supplied, the recording apparatus 11 attaches the right end of the medium 99 to the second protrusion 62 and the left end of the medium 99 to the sixth protrusion 66. Eject the medium 99 so that it is supported. That is, the recording apparatus 11 of this embodiment lifts only one end of the medium 99 when supplying the medium 99 from the supply port 17 . In the case of a medium 99 with a small width such as A3 size, the medium 99 can be sufficiently stiffened simply by lifting one end of the medium 99 .

According to the above embodiment, the following effects can be obtained.
(1) The recording apparatus 11 includes a pair of support portions 27 that support the medium 99 ejected by the ejection portion 25 so as to lift two locations sandwiching the center in the width direction X of the medium 99 . A plurality of pairs of support portions 27 are provided so as to correspond to a plurality of media 99 of different sizes. Therefore, the medium 99 ejected by the ejection portion 25 is curved in the width direction X by being supported by the pair of support portions 27 . This imparts stiffness to the medium 99 . A plurality of pairs of support portions 27 are provided so as to correspond to a plurality of media 99 of different sizes. Therefore, stiffness can be imparted to a plurality of media 99 having different sizes. Therefore, hanging of the medium 99 can be suppressed. In particular, sagging can be suppressed for media 99 of different sizes.

(2) The first support portion 51 is provided so as to support the medium 99 at a height higher than that of the second support portion 52, and is positioned so as to sandwich the second support portion 52 in the width direction X. As shown in FIG. When the medium 99 is supported by the pair of first support portions 51 positioned so as to sandwich the second support portion 52 , the second support portions 52 are positioned such that the portions of the medium 99 supported by the pair of first support portions 51 are separated from each other. support the part between The height at which the second support portion 52 supports the medium 99 is lower than the height at which the first support portion 51 supports the medium 99 . Therefore, the portion of the medium 99 supported by the second support portion 52 drops downward. That is, the medium 99 can be easily lifted by the first support portion 51 . Thereby, the medium 99 can be provided with stiffness.

(3) The support portion 27 is provided so as to support the medium 99 at a position higher than the position where the discharge rollers 38 sandwich the medium 99 . Therefore, the medium 99 ejected by the ejecting portion 25 is supported by the support portion 27 so as to extend upward from below. By ejecting the medium 99 in an attitude extending upward from below, the medium 99 is less likely to hang down than in the case of ejecting the medium 99 in an attitude extending downward from above. That is, the hanging of the medium 99 can be suppressed.

(4) The support portion 27 is composed of a projection 41 projecting upward. Thereby, the support part 27 can be configured simply.
(5) The upper end portion 44 of the projection 41 has a rounded shape when viewed in the width direction X. As shown in FIG. As a result, damage to the medium 99 caused by rubbing against the protrusions 41 can be reduced.

(6) The upper end portion 44 of the protrusion 41 has a rounded shape when viewed from the ejection direction A in which the medium 99 is ejected. As a result, damage to the medium 99 caused by rubbing against the protrusions 41 can be reduced.

The above-described embodiment may be modified as in modification examples shown below. In addition, the configurations included in the above embodiment and the configurations included in the modified examples below may be arbitrarily combined, and the configurations included in the modified examples below may be arbitrarily combined.

- As shown in FIG. 8, the protrusion amount of the sixth protrusion 66 may be larger than the protrusion amounts of the third protrusion 63, the fourth protrusion 64, and the fifth protrusion 65. For example, the amount of protrusion of the sixth protrusion 66 may be made equal to the amount of protrusion of the second protrusion 62 . In this case, when the A3 size medium 99 is supplied, the right end of the medium 99 is supported by the second protrusion 62 and the left end of the medium 99 is supported by the sixth protrusion 66 . At this time, the medium 99 bends in the width direction X such that a portion between the portion supported by the second projection 62 and the portion supported by the sixth projection 66 drops. That is, the portion of the medium 99 between the portion supported by the second projection 62 and the portion supported by the sixth projection 66 is wider than the upper end portion 44 of the second projection 62 and the upper end portion 44 of the sixth projection 66 . is also positioned downward in the vertical direction Z.

The medium 99 curves in the width direction X such that the portion supported by the second projections 62 and the portion supported by the sixth projections 66 are raised. As a result, when the medium 99 of A3 size is supplied, the second protrusion 62 as the second support section 52 and the sixth protrusion 66 as the second support section 52 support both ends of the medium 99 so as to be lifted. It functions as a pair of support parts 27 to carry out. The second protrusion 62 and the sixth protrusion 66 are a pair of support portions 27 that support the medium 99 to be ejected so as to lift two portions sandwiching the center in the width direction X. As shown in FIG. The protrusion amount of the sixth protrusion 66 may be made equal to the protrusion amounts of the first protrusion 61 , the seventh protrusion 67 , the eighth protrusion 68 and the ninth protrusion 69 . Also in this case, the second projection 62 as the second support portion 52 and the sixth projection 66 as the first support portion 51 function as a pair of support portions 27 .

- As shown in FIG. 9 , the plurality of support portions 27 may be arranged symmetrically in the width direction X. In this case, the recording apparatus 11 preferably ejects the medium 99 so that the central positions of the medium 99 in the width direction X are aligned. In this modification, the discharge port 13 is provided with eight protrusions 41 . A plurality of projections 41 provided in the discharge port 13 are arranged in order in the width direction X as a first projection 71, a second projection 72, a third projection 73, a fourth projection 74, a fifth projection 75, a sixth projection 76, and a seventh projection. The projections 77 and 8th projections 78 are called.

The protrusion amounts of the first protrusion 71 and the eighth protrusion 78 are equal to each other. The protrusion amounts of the second protrusion 72 and the seventh protrusion 77 are equal to each other. The amount of protrusion of the second protrusion 72 and the amount of protrusion of the seventh protrusion 77 is smaller than the amount of protrusion of the first protrusion 71 and the amount of protrusion of the eighth protrusion 78 . The protrusion amounts of the third protrusion 73 and the sixth protrusion 76 are equal to each other. The amount of protrusion of the third protrusion 73 and the amount of protrusion of the sixth protrusion 76 is smaller than the amount of protrusion of the second protrusion 72 and the amount of protrusion of the seventh protrusion 77 . The protrusion amounts of the fourth protrusion 74 and the fifth protrusion 75 are equal to each other. The amount of protrusion of the fourth protrusion 74 and the amount of protrusion of the fifth protrusion 75 is smaller than the amount of protrusion of the third protrusion 73 and the amount of protrusion of the sixth protrusion 76 . That is, the plurality of projections 41 are arranged in the discharge port 13 such that the protrusions 41 located near the ends have a larger protrusion amount than the protrusions 41 located near the center in the width direction X.

When both ends of the medium 99 to be ejected are supported by the first projection 71 and the eighth projection 78 respectively, there is a gap between the portion of the medium 99 supported by the first projection 71 and the portion supported by the eighth projection 78 . part of it falls downwards. That is, the first protrusion 71 and the eighth protrusion 78 support both ends of the medium 99 so as to be lifted. Therefore, in this case, the first protrusion 71 and the eighth protrusion 78 function as a pair of support portions 27 . The first protrusion 71 and the eighth protrusion 78 function as the first support portion 51 .

When both ends of the medium 99 to be ejected are supported by the second protrusion 72 and the seventh protrusion 77, respectively, there is a gap between the portion of the medium 99 supported by the second protrusion 72 and the portion supported by the seventh protrusion 77. part of it falls downwards. That is, the second protrusion 72 and the seventh protrusion 77 support both ends of the medium 99 so as to lift them. Therefore, in this case, the second protrusion 72 and the seventh protrusion 77 function as a pair of support portions 27 . The second projection 72 and the seventh projection 77 function as the second support portion 52 having a lower height for supporting the medium 99 than the first support portion 51 .

When both ends of the medium 99 to be discharged are supported by the third protrusion 73 and the sixth protrusion 76, respectively, there is a gap between the portion supported by the third protrusion 73 and the portion supported by the sixth protrusion 76 in the medium 99. part of it falls downwards. That is, the third protrusion 73 and the sixth protrusion 76 support both ends of the medium 99 so as to be lifted. Therefore, in this case, the third protrusion 73 and the sixth protrusion 76 function as a pair of support portions 27 . The third protrusion 73 and the sixth protrusion 76 function as the third support portion 53 that supports the medium 99 and has a lower height than the second support portion 52 .

When both ends of the medium 99 to be ejected are supported by the fourth protrusion 74 and the fifth protrusion 75, respectively, there is a gap between the portion of the medium 99 supported by the fourth protrusion 74 and the portion supported by the fifth protrusion 75. A part may fall downward. In this case, the fourth protrusion 74 and the fifth protrusion 75 support both ends of the medium 99 so as to lift them. Therefore, in this case, the fourth protrusion 74 and the fifth protrusion 75 function as a pair of support portions 27 . The fourth protrusion 74 and the fifth protrusion 75 function as the fourth support portion 54 that supports the medium 99 and has a lower height than the third support portion 53 .

In this way, even when a plurality of support portions 27 are arranged symmetrically in the width direction X, the pair of support portions 27 are arranged so as to lift the medium 99 to be ejected at two locations sandwiching the center in the width direction X. can support

- The projections 41 may be replaced with, for example, rollers. That is, the support portion 27 may be configured with a rotatable roller.
- The protrusion 41 may not have the curved surface 43 .

- Support part 27 may be constituted by projection 41 and a roller. For example, the first support portion 51 may be configured by the projection 41 and the second support portion 52 may be configured by a roller.
- The medium 99 to be ejected may be curved in an M shape or a W shape when viewed from the ejection direction A.

- The discharge unit 25 may be configured to discharge the medium 99 using, for example, a belt.
- The head 33 may be configured as a long line head in the width direction X.
- The upper end portion 44 of the protrusion 41 may be formed to have an angular shape. The projections 41 are preferably formed so as to reduce friction with the medium 99 .

- The plurality of support portions 27 may be arranged such that their positions are shifted upstream and downstream in the discharge direction A. As shown in FIG.
- The medium 99 is not limited to paper, and may be, for example, a plastic film. The medium 99 may be sheet-like.

The liquid ejected by the head 33 is not limited to ink, and may be, for example, a liquid in which functional material particles are dispersed or mixed in liquid. For example, the head 33 ejects a liquid containing dispersed or dissolved materials such as electrode materials or coloring materials (pixel materials) used in the manufacture of liquid crystal displays, EL (electroluminescence) displays and surface emitting displays. good too.

DESCRIPTION OF SYMBOLS 11... Recording apparatus (ejection apparatus), 12... Housing, 13... Ejection port, 14... Operation panel, 15... First cover, 16... Second cover, 17... Supply port, 21... Guide member, 22... Conveying unit , 23... Support base 24... Recording unit 25... Discharge unit 26... Cutting unit 27... Support unit 31... Conveying roller 32... Nozzle 33... Head 34... Carriage 35... Guide shaft 36... Nozzle surface 37 Relay roller 38 Discharge roller 39 Rotary blade 41 Protrusion 42 Inclined surface 43 Curved surface 44 Upper end portion 51 First support 52 Second support , 53... 3rd support part, 54... 4th support part, 61... 1st protrusion, 62... 2nd protrusion, 63... 3rd protrusion, 64... 4th protrusion, 65... 5th protrusion, 66... 6th protrusion , 67... Seventh protrusion, 68... Eighth protrusion, 69... Ninth protrusion, 71... First protrusion, 72... Second protrusion, 73... Third protrusion, 74... Fourth protrusion, 75... Fifth protrusion, 76 ... sixth projection, 77 ... seventh projection, 78 ... eighth projection, 99 ... medium, A ... discharge direction, R ... roll body, X ... width direction, Y ... depth direction, Z ... vertical direction.

Claims (6)

an ejection part having an ejection port for ejecting the medium;
a pair of support portions for supporting the medium ejected by the ejection portion so as to lift two locations sandwiching the center in the width direction;
A plurality of the pair of support portions are provided so as to correspond to a plurality of the media having different sizes,
The support section includes a first support section and a second support section having different heights for supporting the medium,
at least one pair of the first support portions are provided so that the height for supporting the medium is higher than that of the second support portion, and are positioned so as to sandwich the second support portion in the width direction;
At least three second support portions are provided between at least one pair of the first support portions,
heights of the at least three second support portions are equal to each other ;
In the width direction of the upper end portions of the protrusions that constitute at least three of the second support portions
The length is the length in the width direction of the upper end portions of the projections that constitute the pair of first support portions
An ejector, characterized in that it is longer than the The discharge unit has a discharge roller that discharges the medium from the discharge port by rotating in a state of sandwiching the medium,
2. The ejection device according to claim 1 , wherein the support portion is provided so as to support the medium at a position higher than a position where the ejection rollers sandwich the medium. 2. The support part is composed of a projection projecting upward, or
3. Evacuation device according to claim 2 . 4. The discharging device according to claim 3 , wherein the upper end portion of the projection has a rounded shape when viewed in the width direction. 5. The discharging device according to claim 3 , wherein the upper end portion of the projection has a rounded shape when viewed from the discharging direction in which the medium is discharged. a recording unit for recording an image on a medium;
an ejection unit having an ejection port for ejecting the medium, and ejecting the medium recorded by the recording unit from the ejection port;
a pair of support portions for supporting the medium ejected by the ejection portion so as to lift two locations sandwiching the center in the width direction;
A plurality of the pair of support portions are provided so as to correspond to a plurality of the media having different sizes,
The support section includes a first support section and a second support section having different heights for supporting the medium,
at least one pair of the first support portions are provided so that the height for supporting the medium is higher than that of the second support portion, and are positioned so as to sandwich the second support portion in the width direction;
At least three second support portions are provided between at least one pair of the first support portions,
heights of the at least three second support portions are equal to each other ;
In the width direction of the upper end portions of the protrusions that constitute at least three of the second support portions
The length is the length in the width direction of the upper end portions of the projections that constitute the pair of first support portions
A recording device characterized by being longer than

Images