Support device

According to one embodiment, provided is a support device including a base member, a pair of tip members, and a pair of lower end members. The base member is configured to be foldable at an intermediate portion in a width direction, the base member having a plate shape. The pair of tip members are present in both end portions of the base member in the width direction and have a configuration where a pair of plate materials are disposed to be tapered. The pair of lower end members have a plate shape, are present in a lower end portion of the base member on both sides of the base member in a thickness direction, and form a substantially right angle with the base member.

FIELD

Embodiments described herein relate generally to a support device.

BACKGROUND

A large capacity paper feeding device that supplies many sheets to an image forming apparatus is used. In a cassette of the large capacity paper feeding device, a tray where sheets are stacked is present. The tray can move up and down. If the large capacity paper feeding device is packaged and conveyed, a support device that supports the trays is disposed in the cassette. In the support device, it is required to restrict movement of the tray.

DETAILED DESCRIPTION

According to one embodiment, provided is a support device including a base member, a pair of tip members, and a pair of lower end members. The base member is configured to be foldable at an intermediate portion in a width direction, the base member having a plate shape. The pair of tip members are present in both end portions of the base member in the width direction and have a configuration where a pair of plate materials are disposed to be tapered. The pair of lower end members have a plate shape, are present in a lower end portion of the base member on both sides of the base member in a thickness direction, and form a substantially right angle with the base member.

Hereinafter, a support device according to an embodiment will be described.

The support device according to the embodiment supports a tray present in a bottom portion of a cassette of a large capacity paper feeding device. The large capacity paper feeding device supplies sheets to an image forming apparatus. The image forming apparatus, the large capacity paper feeding device, and the support device according to the embodiment will be sequentially described.

FIG.1is a perspective view illustrating the image forming apparatus and the large capacity paper feeding device.

In the present application, a Z direction, an X direction (third direction), and a Y direction (fourth direction) in the rectangular coordinate system are defined as follows. The Z direction is a vertical direction (up-down direction) and a +Z direction is an upward direction. The X direction and the Y direction are horizontal directions. The X direction is a front-rear direction of an image forming apparatus100, and a +X direction is a front direction. The Y direction is a left-right direction of the image forming apparatus100, and a +Y direction is a right direction. The right direction of the image forming apparatus100is a right direction when the image forming apparatus100is seen from the front side to the rear side. In the present application, the respective directions of the image forming apparatus100including the upward, downward, front, rear, right, and left directions will be simply referred to as “up, down, front, rear, right, and left”.

The image forming apparatus100will be described.

The image forming apparatus100forms an image on a sheet with a developer such as a toner. The image forming apparatus100includes an operation unit101, a scanner unit104, a printer unit105, and a cassette paper feed unit106.

The operation unit101includes a display102and a control panel103. The display102displays various information regarding the image forming apparatus100. The control panel103includes a plurality of buttons. The control panel103receives an operation of a user. In addition, the control panel103outputs a signal corresponding to the operation input by the user to a control unit of the image forming apparatus100.

The scanner unit104reads image information of a reading target based on brightness and darkness of light. The scanner unit104outputs the read image information to the printer unit105.

The printer unit105forms an image on the sheet based on image information generated by the scanner unit104or image information received through a communication path.

The cassette paper feed unit106accommodates the sheet to be used for forming the image in the printer unit105in the cassette. The cassette paper feed unit106supplies the sheet accommodated in the cassette to the printer unit105.

A large capacity paper feeding device1will be described in detail.

The large capacity paper feeding device1can accommodate more sheets than the cassette paper feed unit106. For example, the large capacity paper feeding device1is disposed adjacent to the right side of the image forming apparatus. An opening through which sheets supplied from the large capacity paper feeding device1are received is provided on the right side of the image forming apparatus100.

FIG.2is a perspective view illustrating a state where the cassette of the large capacity paper feeding device is drawn. The large capacity paper feeding device1includes a case2, a front cover4, and a cassette10.

The case2covers a part of the large capacity paper feeding device1other than a front surface. An opening through which the sheet is discharged is provided above a left surface of the case2.

The front cover4covers the front surface of the large capacity paper feeding device1. The front cover4includes a handle5to be used for moving the cassette10.

The cassette10is fixed to the back of the front cover4and can be accommodated in the case2. The cassette10is movable in the front-rear direction relative to the case2together with the front cover4. The cassette10includes a bottom frame11, a pair of first frames12and15, and a pair of second frames18and19.

The bottom frame11is present in the bottom portion of the cassette10. The bottom frame11is parallel to the XY plane.

The pair of first frames12and15are parallel to the YZ plane. The pair of first frames12and15face each other in the front-rear direction. The pair of first frames12and15are a front frame12and a rear frame15. The front frame12is present on the front side of the cassette10. The rear frame15is present on the rear side of the cassette10.

The pair of second frames18and19are parallel to the XZ plane. The pair of second frames18and19face each other in the left-right direction. The pair of second frames18and19are a left frame18and a right frame19. The left frame18is present on the front side of the cassette10. The right frame19is present on the rear side of the cassette10.

The heights of the front frame12, the rear frame15, and the left frame18are the same as each other and are higher than the right frame19. The upper side and the right side of the cassette10are opened. The sheet is inserted from the upper side and the right side of the cassette10into the cassette10. The sheet inserted into the cassette10is disposed parallel to the XY plane on the upper surface of a tray30.

The cassette10includes a sheet position adjustment mechanism20. The sheet position adjustment mechanism20adjusts the position of the sheet in the cassette10according to the size of the sheet. The sheet position adjustment mechanism20includes a front guide22, a rear guide25, and a right guide29. A left end of the sheet abuts against the left frame18.

The front guide22and the rear guide25abut against a front end and a rear end of the sheet and adjust the positions of the front end and the rear end of the sheet. The front guide22and the rear guide25are long in the up-down direction. The front guide22and the rear guide25are present at intermediate portions of the cassette10in the left-right direction. The front guide22is present on the front side of the cassette10and the rear side of the front frame12. A rear surface of the front guide22is parallel to the YZ plane and abuts against the front end of the sheet. The rear guide25is present on the rear side of the cassette10and the front side of the rear frame15. A front surface of the rear guide25is parallel to the YZ plane and abuts against the rear end of the sheet. The front guide22and the rear guide25are provided to be movable relative to the bottom frame11in the front-rear direction. The front guide22and the rear guide25may be linked to each other. If the front guide22moves to the rear side by a predetermined distance, the rear guide25may move to the front side by the predetermined distance.

The right guide29abuts against the right end of the sheet and adjusts the position of the right end of the sheet. The right guide29is long in the up-down direction. The right guide29is present at a rear end of the cassette10. The right guide29is present on the right side of the cassette10and the left side of the right frame19. A left surface of the right guide29is parallel to the XZ plane and abuts against the right end of the sheet. The right guide29is provided to be movable relative to the bottom frame11in the left-right direction.

The cassette10includes the tray30. The tray30is present above the bottom frame11. The sheet inserted into the cassette10is disposed on the upper surface of the tray30.

FIG.3is a perspective view illustrating a state where the support device according to the embodiment is mounted on the large capacity paper feeding device, andFIG.9is a plan view thereof. The tray30has a flat plate shape and is parallel to the XY plane. The tray30has a front guide hole32and a rear guide hole35. The front guide22is disposed in the front guide hole32. The rear guide25is disposed in the rear guide hole35.

As illustrated inFIG.9, the tray30includes a pair of front pins33and34and a pair of rear pins36and37. The pair of front pins33and34and the pair of rear pins36and37are connected to the tray30. The pair of front pins33and34protrude to the front side from the front end of the tray30. The pair of front pins33and34approach the left end and the right end of the tray30. The pair of rear pins36and37protrude to the rear side from the rear end of the tray30. The pair of rear pins36and37approach the left end and the right end of the tray30.

The front frame12includes a pair of front hole portions13and14. The pair of front hole portions13and14are long in the up-down direction. The pair of front hole portions13and14penetrate the front frame12in the front-rear direction. The pair of front pins33and34are inserted into the pair of front hole portions13and14. The rear frame15includes a pair of rear hole portions16and17. The pair of rear hole portions16and17are long in the up-down direction. The pair of rear hole portions16and17penetrate the rear frame15in the front-rear direction. The pair of rear pins36and37are inserted into the pair of rear hole portions16and17.

Tips of the pair of front pins33and34are present on the front side of the front frame12. Tips of the pair of rear pins36and37are present on the rear side of the rear frame15. Wires are connected to the tips of the pair of front pins33and34and the pair of rear pins36and37. If a motor winds the wires, the tray30moves up. If the motor unwinds the wires, the tray30moves down. If the cassette10is drawn from the case2illustrated inFIG.2, the tray30moves down due to its own weight. As the method of moving down the tray30, two patterns including the self-weight downward movement and the motor control are present. If the tray moves down due to its own weight, a centrifugal brake works, and thus fracture or the like caused by falling does not occur. The pair of front hole portions13and14and the pair of rear hole portions16and17illustrated inFIG.9guide the vertical movement of the tray30.

The case2illustrated inFIG.2includes a paper feeding mechanism. The paper feeding mechanism is present on the upper left side in the case2. The paper feeding mechanism is present in a center portion of the case2in the front-rear direction. The paper feeding mechanism includes, for example, a pickup roller, a paper feed roller, and a separation roller. The sheet is disposed on the upper surface of the tray30, and the cassette10is accommodated in the case2. The motor moves up the sheet together with the tray30. The paper feeding mechanism picks up the sheet from the tray30one by one and supplies the sheet to the image forming apparatus100.

The support device will be described in detail.

As illustrated inFIGS.3and9, if the large capacity paper feeding device1is packaged and conveyed, a support device40is disposed in the cassette10and supports the tray30.

FIG.4is a perspective view illustrating the support device. The support device40is formed using cardboard, thick paper, or the like. The support device40includes a base member41, a pair of tip members42and45, and a pair of lower end members48and49.

In the present application, as a local coordinate system of the support device40, a r direction, a s direction, and a t direction in the rectangular coordinate system are defined. The r direction is a width direction of the base member41. A +r direction (first direction) is a direction that forms an acute angle with the front direction, and a −r direction (second direction) is a direction opposite to the +r direction. The s direction is a thickness direction of the base member41, and a +s direction is a direction that forms an acute angle with the right direction. The t direction is a height direction of the base member41, and a +t direction is a direction that forms an acute angle with the upward direction. For example, the t direction is parallel to the up-down direction (Z direction).

The base member41has a quadrangular plate shape. The base member41is foldable at a polygonal line51of an intermediate portion in the width direction. The polygonal line51is a center portion of the base member41in the width direction. The polygonal line51is present between the pair of lower end members48and49.

The pair of tip members42and45are both end portions of the base member41in the width direction. The pair of tip members42and45are long in the t direction. A cross-sectional shape perpendicular to the t direction of the pair of tip members42and45is constant. A height from a lower end portion to an upper end portion of the base member41is higher than a height from the lower end portion of the base member41to upper end portions of the pair of tip members42and45. A pair of step portions52and55are present between the upper end portion of the base member41and the upper end portions of the pair of tip members42and45. The pair of tip members42and45are a first tip member42and a second tip member45.

The first tip member42is an end portion of the base member41in the +r direction. The first tip member42is tapered toward the tip in the +r direction. In the first tip member42, a pair of plate materials43and44are disposed to be tapered. The pair of plate materials43and44are a base end plate material43and a tip plate material44. An end portion of the base endplate material43in the −r direction is continuous with an end portion of the base member41in the +r direction. The base end plate material43is present on the same rt plane as the base member41. An end portion of the base end plate material43in the +r direction is continuous with an end portion of the tip plate material44in the +r direction. The tip plate material44is present in a −s direction of the base end plate material43. The tip plate material44may be present in the +s direction of the base end plate material43.

The second tip member45is an end portion of the base member41in the direction. The second tip member45is tapered toward the tip in the −r direction. In the second tip member45, a pair of plate materials46and47are disposed to be tapered. The pair of plate materials46and47are a base end plate material46and a tip plate material47. An end portion of the base member41in the −r direction is continuous with an end portion of the base end plate material46in the +r direction. The base end plate material46is present on the same rt plane as the base member41. An end portion of the base end plate material46in the −r direction is continuous with an end portion of the tip plate material47in the −r direction. The tip plate material47is present in the +s direction of the base end plate material46. The tip plate material47may be present in the −s direction of the base end plate material46.

The tip plate material44of the first tip member42and the tip plate material47of the second tip member45are opposite to each other in the s direction with respect to the base member41.

The pair of lower end members48and49have a quadrangular plate shape. The pair of lower end members48and49are present in the lower end portion of the base member41. The pair of lower end members48and49are present on both sides in the s direction with respect to the base member41. The pair of lower end members48and49forma substantially right angle with the base member41. The pair of lower end members48and49are substantially parallel to the rs plane. The pair of lower end members48and49are a first lower end member48and a second lower end member49.

The first lower end member48is present in the +r direction and the −s direction of the base member41. An end portion of the first lower end member48in the −r direction is present at a center portion of the base member41in the r direction. An end portion of the first lower end member48in the +r direction is present in the −r direction further than the end portion of the base member41in the +r direction.

The second lower end member49is present in the −r direction and the +s direction of the base member41. An end portion of the second lower end member49in the +r direction is present at a center portion of the base member41in the r direction. An end portion of the second lower end member49in the −r direction is present in the +r direction further than the end portion of the base member41in the −r direction.

A tip side68of the first lower end member48and a tip side69of the second lower end member49are parallel to each other. The tip side68of the first lower end member48and the tip side69of the second lower end member49are not parallel to the base member41and intersect with the r direction. A length in the s direction from a lower end side of the base member41to an end portion of the tip side69of the second lower end member49in the −r direction is longer than a length in the s direction from the lower end side of the base member41to an end portion of the tip side68of the first lower end member48in the +r direction.

FIG.5is an exploded view illustrating the support device. The base member41, the pair of tip members42and45, and the pair of lower end members48and49of the support device40are formed of an integrated flat plate P.

The base endplate material43and the tip plate material44of the first tip member42are formed in the r direction next to the end portion of the base member41in the +r direction. At a polygonal line54between the base end plate material43and the tip plate material44, the tip plate material44is folded in the −s direction to form the first tip member42. The base end plate material46and the tip plate material47of the second tip member45are formed in the r direction next to the end portion of the base member41in the −r direction. At a polygonal line57between the base end plate material46and the tip plate material47, the tip plate material47is folded in the +s direction to form the second tip member45.

The pair of lower end members48and49are formed in the r direction next to an end portion of the base member41in a −t direction. A notch50is formed between the pair of lower end members48and49. At a polygonal line58between the base member41and the first lower end member48, the first lower end member48is folded in the −s direction to form the first lower end member48. At a polygonal line59between the base member41and the second lower end member49, the second lower end member49is folded in the +s direction to form the second lower end member49.

The support device40according to the embodiment is formed by folding the integrated flat plate P. In the support device40, an overlapping portion of a plurality of plate materials is not present. In the support device40, a portion connected using an adhesive tape or the like is not present. Manufacturing costs including a material cost of the support device40are reduced. The support device40may be formed by connecting a plurality of separate flat plates.

As illustrated inFIGS.3and9, if the large capacity paper feeding device1is packaged and conveyed, the support device40is disposed in the cassette10.

The lower end portion of the base member41abuts against the upper surface of the tray30. The base member41is disposed substantially perpendicular to the upper surface of the tray30.

The pair of tip members42and45are inserted into hole portions of the pair of first frames12and15facing each other in the front-rear direction. The pair of step portions52and55of the support device40are disposed adjacent to each other in the pair of first frames12and15. The position of the support device40relative to the cassette10in the front-rear direction is restricted by the pair of step portions52and55.

The first tip member42is inserted into a left front hole portion13on the left side among the pair of front hole portions13and14of the front frame12. The second tip member45is inserted into a right rear hole portion17on the right side among the pair of rear hole portions16and17of the rear frame15. The left front hole portion13and the right rear hole portion17are present near a diagonal line on the upper surface of the tray30. The base member41intersects with the front-rear direction and is disposed near the diagonal line on the upper surface of the tray30. Even when the front guide22and the rear guide25are disposed nearest to the center of the cassette10, the base member41does not interfere with the front guide22and the rear guide25.

a height from the lower end portion of the base member41to upper end portions of the pair of tip members42and45is the same as a height from the upper surface of the tray30to upper end portions of the hole portions13and17of the pair of first frames12and15. The position of the support device40relative to the cassette10in the up-down direction is restricted by the pair of tip members42and45.

As illustrated inFIG.9, the pair of lower end members48and49are disposed along the upper surface of the tray30. The tip sides68and69of the pair of lower end members48and49are disposed near the pair of second frames18and19facing each other in the left-right direction. The tip side68of the first lower end member48is disposed parallel to the left frame18to abut or be in contact with the left frame18. The tip side69of the second lower end member49is disposed parallel to the right frame19to abut or be in contact with the right frame19. The position of the support device40relative to the cassette10in the left-right direction is restricted by the pair of lower end members48and49.

The right guide29of the sheet position adjustment mechanism20is disposed in a space between the end portion of the second lower end member49in the −r direction and the end portion of the base member41in the −r direction. Even when the right guide29is disposed nearest the center of the cassette10, the second lower end member49does not interfere with the right guide29.

Irrespective of the state of the sheet position adjustment mechanism20, the position of the support device40relative to the cassette10in each of the directions is restricted. The movement of the tray30in the up-down direction is restricted by the support device40. The tilt of the tray30is inhibited by the base member41.

The first tip member42of the support device40in the +r direction is inserted into the left front hole portion13of the front frame12of the cassette10. The tip side68of the first lower end member48of the support device40in the +r direction is disposed near the left frame18of the cassette10. A length from the lower end portion of the base member41to the tip side68decreases, and the material cost of the support device40is reduced. The second tip member45of the support device40in the −r direction is inserted into the right rear hole portion17of the rear frame15of the cassette10. The tip side69of the second lower end member49of the support device40in the −r direction is disposed near the right frame19of the cassette10. A length from the lower end portion of the base member41to the tip side69decreases, and the material cost of the support device40is reduced.

A method of mounting the support device40on the cassette10will be described.

FIGS.6to9are first to fourth diagrams illustrating the method of mounting the support device on the cassette. As illustrated inFIG.6, the pair of lower end members48and49are folded up to the surface of the base member41. The base member41is folded at the polygonal line51. The first tip member42is inserted into the left front hole portion13of the front frame12. As illustrated inFIG.7, the second tip member45is inserted into the right rear hole portion17of the rear frame15. The pair of lower end members48and49and the base member41are folded and thus do not interfere with the respective frames of the cassette10. The pair of tip members42and45are easily inserted into the hole portions13and17of the pair of first frames12and15.

As illustrated inFIG.8, the folded base member41is returned to the flat plate shape. The pair of tip members42and45are inserted deep into the hole portions13and17of the pair of first frames12and15. The pair of step portions52and55of the base member41are disposed near the first frames12and15. As illustrated inFIG.9, the pair of folded lower end members48and49are exploded at the substantially right angle with respect to the base member41. The tip sides68and69of the pair of lower end members48and49are disposed near the pair of second frames18and19.

As a result, the mounting of the support device40on the cassette10is completed.

As described above in detail, the support device40according to the embodiment includes the base member41, the pair of tip members42and45, and the pair of lower end members48and49. The base member41is configured to be foldable at an intermediate portion in the r direction, the base member having a plate shape. The pair of tip members42and45are present in both end portions of the base member41in the r direction and have a configuration where a pair of plate materials are disposed to be tapered. The pair of lower end members48and49have a plate shape, are present in the lower end portion of the base member41on both sides of the base member41in the s direction, and form a substantially right angle with the base member41.

The support device40supports the tray30present in the cassette10of the large capacity paper feeding device1. The lower end portion of the base member41abuts against the upper surface of the tray30. The pair of tip members42and45are inserted into the hole portions13and17of the pair of first frames12and15facing each other in the front-rear direction in the cassette10. The tip sides of the pair of lower end members48and49are disposed near the pair of second frames18and19facing each other in the left-right direction in the cassette10.

The base member41is disposed between the pair of first frames12and15such that the position of the support device40relative to the cassette10in the front-rear direction is restricted. The tip sides68and69of the pair of lower end members48and49are disposed near the pair of second frames18and19such that the position of the support device40relative to the cassette10in the left-right direction is restricted. The pair of tip members42and45are inserted into the hole portions13and17such that the position of the support device40relative to the cassette10in the up-down direction is restricted. The lower end portion of the support device40abuts against the upper surface of the tray30present in the bottom portion of the cassette10such that the movement and tilt of the tray30in the up-down direction are inhibited. The support device40can restrict the movement of the tray30. The movement of the tray30is restricted such that damages of the tray30and the peripheral members of the tray30are reduced. In particular, damages of the front pins33and34and the rear pins36and37connected to the tray30are reduced.

The base member41, the pair of tip members42and45, and the pair of lower end members48and49are formed of the integrated flat plate P.

The manufacturing costs of the support device40are reduced.

The height from the lower end portion to the upper end portion of the base member41is higher than the height from the lower end portion of the base member41to the upper end portions of the pair of tip members42and45.

The pair of step portions52and55are present between the upper end portion of the base member41and the upper end portions of the pair of tip members42and45. The pair of step portions52and55are disposed between the pair of first frames12and15such that the position of the support device40relative to the cassette10in the front-rear direction is restricted.

The pair of lower end members48and49are the first lower end member48present in the +r direction of the base member41and the second lower end member49present in the −r direction of the base member41. The tip side68of the first lower end member48and the tip side69of the second lower end member49are parallel to each other.

The tip sides68and69of the pair of lower end members48and49are disposed parallel to the pair of second frames18and19such that the position of the support device40relative to the cassette10in the left-right direction is restricted.

The tip side68of the first lower end member48and the tip side69of the second lower end member49are not parallel to the base member41.

The base member41is not parallel to the front-rear direction. The base member41is disposed near the diagonal line on the upper surface of the tray30. The tilt of the tray30is inhibited by the base member41such that the movement of the tray30is restricted. The interference between the base member41and the front guide22and the rear guide25of the sheet position adjustment mechanism20is avoided.

The end portion of the first lower end member48in the +r direction is present in the −r direction further than the end portion of the base member41in the +r direction. The end portion of the second lower end member49in the −r direction is present in the +r direction further than the end portion of the base member41in the −r direction.

The right guide29of the sheet position adjustment mechanism20is disposed in the space between the end portion of the second lower end member49in the −r direction and the end portion of the base member41in the −r direction. The interference between the second lower end member49and the right guide29is avoided.

The height from the lower end portion of the base member41to the upper end portions of the pair of tip members42and45is the same as the height from the upper surface of the tray30to the upper end portions of the hole portions13and17.

The lower end portion of the base member41abuts against the upper surface of the tray30. The pair of tip members42and45are inserted into the hole portions13and17. The position of the support device40relative to the cassette10in the up-down direction is restricted such that the movement of the tray30in the up-down direction is restricted.

The hole portions13and17are long in the up-down direction, the pins33and37connected to the tray30are inserted into the hole portions13and17, and the hole portions13and17guide the movement of the tray30in the up-down direction.

The pair of tip members42and45are inserted into the hole portions13and17that are long in the up-down direction such that the posture of the support device40is stabilized. The movements of the pins33and37inserted into the hole portions13and17in the up-down direction are restricted by the pair of tip members42and45such that damages of the pins33and37are reduced.

The hole portions13and17are present near both end portions of the diagonal line on the upper surface of the tray30.

The pair of tip members42and45are inserted into the hole portions13and17, and the base member41is disposed near the diagonal line of the tray30. The tilt of the tray30is inhibited by the base member41such that the movement of the tray30is restricted. The interference between the base member41and the front guide22and the rear guide25of the sheet position adjustment mechanism20is avoided.

The large capacity paper feeding device1to which the support device according to the embodiment is mounted supplies sheets to the image forming apparatus100that is an example of the image processing apparatus. The large capacity paper feeding device1may supply sheets to a decoloring apparatus that is another example of the image processing apparatus. The decolor apparatus executes a process of decoloring (erasing) an image formed on a sheet by a decolorable toner.

The large capacity paper feeding device1to which the support device40according to the embodiment is mounted is disposed on the right side of the image forming apparatus100. The large capacity paper feeding device may be disposed on the left side of the image forming apparatus. In this case, the large capacity paper feeding device and the support device are reverse to the large capacity paper feeding device1and the support device40according to the embodiment in the left-right direction. The large capacity paper feeding device1may be disposed on a side other than the right side and the left side of the image forming apparatus100.

The first tip member42of the support device40according to the embodiment is inserted into the left front hole portion13of the cassette10, and the second tip member45of the support device40according to the embodiment is inserted into the right rear hole portion17of the cassette10. The first tip member of the support device may be inserted into the right front hole portion14of the cassette10, and the second tip member may be inserted into the left rear hole portion16of cassette10. In this case, the support device is reverse to the support device40according to the embodiment in the s direction.

According to any one of the embodiments described above, the support device40includes the base member41, the pair of tip members42and45, and the pair of lower end members48and49. As a result, the movement of the tray30can be restricted.