JP2005154115A - Recording device, opening and closing device for delivery stacker and liquid jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To open and close a delivery stacker always in a regular position without vertically moving a turning shaft of the delivery stacker when opening and closing the delivery stacker. <P>SOLUTION: This device is provided with a lifting means 30 having a rack and pinion mechanism capable of vertically switching a position of the delivery stacker 50 at least for two stages, a turning means 31 equipped with the turning shaft 52 capable of substantially achieving opening and closing movement of the delivery stacker 50, and a brake means 32 equipped with a damper 39 acting with respect to the turning shaft 52 of the delivery stacker 50 and preventing rapid opening and closing movement of the delivery stacker 50. The damper 39 of the brake means 32 acts only when the delivery stacker 50 is opened, and does not act when the delivery stacker 50 is closed. A one-way clutch 40 acting as above is installed in the brake means 32. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a discharge stacker that receives a recording material discharged in a closed state when not in use and closes a front opening of the recording apparatus main body, and in an open state when in use, and the discharge stacker. And an opening / closing device that is rotatably attached to the discharge stacker and performs an opening / closing operation of the discharge stacker.

  Furthermore, the present invention relates to a liquid ejecting apparatus such as an ink jet recording apparatus that performs recording (attaches liquid) on a recording material (liquid ejecting material) by ejecting (ejecting) a liquid such as ink from the head and the liquid. The present invention relates to an opening / closing device for a discharge stacker provided in an injection device.

  Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that records ink on a recording material by discharging ink from the recording head. It is used to include a device for ejecting a liquid corresponding to the application from a liquid ejecting head corresponding to the recording head to a liquid ejecting material corresponding to a recording material and attaching the liquid to the liquid ejecting material.

  In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  Hereinafter, an ink jet printer will be described as an example of an ink jet recording apparatus or a liquid ejecting apparatus. An ink jet printer (hereinafter referred to as a “printer”) is provided upstream of a recording material conveyance path, and feeds recording materials accumulated and held in an inclined posture to the downstream side one by one (one unit at a time). A recording material feeding device for feeding, a carriage mounted on the downstream side of the recording material feeding device, and mounted with a recording head for recording on the recording material, and a recording material by rotating. A conveyance roller including a conveyance driving roller and a conveyance driven roller, and a discharge stacker that receives and holds a recording material that is discharged after recording is performed.

  Then, the recording material feeding device stacks and holds the sheets in an inclined posture, feeds the paper to the front side while curving one by one, and discharges the paper substantially horizontally from the front side. A rigid recording material that cannot use the curved feeding path is fed substantially horizontally from the front opening of the apparatus main body, and is discharged from the front again (Patent Document 1). The second feeding path is used when recording is performed on a rigid recording material such as a CD-R (recordable compact disc). Specifically, a recording medium such as a CD-R or a DVD-R is set on a dedicated tray, and recording is executed by conveying the second path. The rigid recording material on which recording has been executed is discharged onto the discharge stacker while being set on the dedicated tray.

  Since the rigid recording material is thicker than normal recording paper, in order to perform recording with the rigid recording material set on a dedicated tray, the carriage on which the recording head is mounted is displaced upward. Therefore, it is necessary to appropriately secure a gap (gap) between the recording head and the rigid recording material. For this purpose, a PG operation lever is provided for adjusting the gap between the recording head and the rigid recording material as the recording material by displacing the carriage guide shaft. That is, when recording on a rigid recording material, the user needs to operate the PG operation lever.

  Further, since the rigid recording material is transported substantially horizontally, the height of the receiving surface of the discharge stacker that is adjusted with respect to the normal recording paper that has been fed along the first feeding path and recorded. In the position, since the receiving surface for the rigid recording material is low, it is necessary to make up for the low by installing an adapter.

JP 2002-192882 A

In the above conventional printer, when recording on a rigid recording material, the user needs to operate the PG operation lever, which is cumbersome and may be accidentally operated erroneously. There was a problem that led to
Further, when recording is performed on the rigid recording material, an adapter is required, which increases the number of parts and inferior in operability.

An object of the present invention is to provide a recording apparatus capable of shifting to a state in which recording can be performed on a rigid recording material without using the PG operation lever and adapter.
Specifically, the transition is configured so that the stacking stacker can be switched to at least two positions using the rack and pinion mechanism, and the transition is performed in conjunction with the position switching operation. In order to improve the performance and reduce the number of parts, when opening and closing the discharge stacker with respect to the recording apparatus main body, the discharge stacker should be opened slowly rather than suddenly, and the discharge stacker itself should be moved up and down. It is an object of the present invention to provide a recording apparatus that can always be opened and closed at a regular position, an opening and closing apparatus for a discharge stacker, and a liquid ejecting apparatus.

  In order to solve the above-described problem, the discharge stacker opening / closing device according to the first aspect of the present invention is closed when not in use and closes the front opening of the recording apparatus main body, and is open and discharged when in use. A recording apparatus comprising: a discharge stacker that receives a recording material to be recorded; and an opening / closing device that rotatably attaches the discharge stacker to a recording apparatus main body and performs an opening / closing operation of the discharge stacker. The opening / closing device serves as a lifting / lowering section having a rack and pinion mechanism for switching the position of the discharge stacker over at least two stages, and serves as an axis for the opening / closing operation of the discharge stacker and for rotating the pinion. A rotating shaft that serves as a shaft, and a braking portion that acts on an actuated portion integral with the pinion and brakes to prevent a sudden opening and closing operation of the discharge stacker, and the braking force of the braking portion is It acts only when the stacker for output is opened, when the closed and is characterized in that it is configured not to act.

  According to the first aspect of the present invention, it is possible to shift to a state in which recording with respect to the rigid recording material can be performed without using the PG operation lever and the adapter. -The pinion mechanism can be used to switch the discharge stacker to at least two positions up and down, and the transition is performed in conjunction with the position switching operation to improve operability and reduce the number of parts. In this case, when the discharge stacker is opened and closed with respect to the recording apparatus main body by the braking action of the brake unit, the discharge stacker can be opened slowly rather than suddenly, and the discharge stacker itself can be moved up and down. It can always be opened and closed at a normal position without moving.

  The recording apparatus according to a second aspect of the present invention is the recording apparatus according to the first aspect, wherein the braking portion is fitted in an idle state with respect to the rotation shaft of the discharge stacker, and the pinion gear is close to the other end. A shaft holder provided with a shaft gear as the actuated portion, a damper gear that is attached to the discharge stacker side and meshes with the shaft gear and revolves around the shaft gear as the discharge stacker rotates, and the damper gear And a damper that suppresses the rotation of the motor. According to the second aspect of the present invention, the function and effect of the first aspect can be obtained with a simplified structure.

  The recording apparatus according to a third aspect of the present invention is characterized in that, in the first or second aspect, a one-way clutch is incorporated in the braking portion. According to the third aspect of the present invention, it is possible to incorporate the one-way clutch so that the damper is operated only when the discharge stacker is rotated in the expanding direction. It is possible to prevent the movement to a simple structure.

  The recording apparatus according to a fourth aspect of the present invention is characterized in that, in the third aspect, the one-way clutch is incorporated in a shaft gear in a braking portion. According to the fourth aspect of the present invention, even if the reaction force of the damper is transmitted from the damper gear to the shaft gear meshing with the damper gear, it is not transmitted to the shaft holder by the action of the one-way clutch incorporated in the shaft gear. Therefore, the reaction force of the damper is not transmitted to the pinion gear provided for the shaft holder, and the upward movement of the discharge stacker due to the opening / closing operation of the discharge stacker does not occur.

  According to a fifth aspect of the present invention, there is provided an opening / closing device for the discharge stacker according to any one of the first to fourth aspects. Thereby, it is incorporated in the recording apparatus, and the effects of the above-described aspects can be obtained.

  The liquid ejecting apparatus according to the sixth aspect of the present invention is in a closed state when not in use and closes the front opening of the liquid ejecting apparatus body, and is in an open state when in use and receives a liquid ejected material that is discharged. A liquid ejecting apparatus, and an opening / closing device that rotatably attaches the discharging stacker to the liquid ejecting apparatus main body and performs an opening / closing operation of the discharging stacker. A lifting and lowering portion having a rack and pinion mechanism that enables switching of the position of the discharge stacker in at least two stages, and a shaft for the opening and closing operation of the discharge stacker and a shaft for the rotation of the pinion. A rotating shaft, and a braking portion that acts on an actuated portion integral with the pinion and brakes to prevent a sudden opening and closing operation of the discharging stacker, and the braking force of the braking portion is discharged Only acts when the stacker is opened, when the closed and is characterized in that it is configured not to act.

  Hereinafter, an opening / closing apparatus for a discharge stacker according to the present invention and a recording apparatus as an example of a liquid ejecting apparatus provided with the opening / closing apparatus will be described. First, an ink jet printer is taken up as the best mode for carrying out a recording apparatus which is an example of the liquid ejecting apparatus of the present invention, and the outline of the entire configuration will be described with reference to the drawings. FIG. 1 is a perspective view showing the ink jet printer with the discharge stacker open, and FIG. 2 is a perspective view showing the ink jet printer with the discharge stacker closed. FIG. 3 is a side sectional view showing an outline of the ink jet printer.

  The ink jet printer 100 includes a main component of a recording execution unit that is an example of a liquid ejection execution unit that performs recording on a recording material P (hereinafter also simply referred to as a sheet P) that is an example of a liquid ejection material. A carriage 10 supported by a carriage guide shaft 12 so as to be reciprocally movable in the scanning direction X is provided. A recording head 13, which is an example of a liquid ejecting head that performs recording by ejecting (ejecting) ink, which is an example of liquid, onto the paper P or the like is mounted on the carriage 10. An ink cartridge 11, which is an example of a liquid cartridge, is mounted on the carriage 10.

  A platen 28 that defines a gap PG between the head surface of the recording head 13 and the paper P or the like is provided below the recording head 13 so as to face the recording head 13. Between the carriage 10 and the platen 28, the sheet P or the like is transported by a predetermined transport amount in the sub-scanning direction Y orthogonal to the main scanning direction X, and the recording head 13 is reciprocated once in the main scanning direction X. Recording is performed on the paper P or the like by alternately repeating the operation of ejecting ink from the recording head 13 onto the paper P or the like.

  Next, the configuration of the ink jet printer 100 will be further described according to the conveyance path of the paper P. First, on the most upstream side in the transport direction, a feeding tray 5 which is an example of a liquid injection material stacking section on which sheets P are stacked is provided. Further, the feeding tray 5 is provided with an edge guide 15 that contacts the side end surface of the paper P and guides smooth conveyance in the sub-scanning direction Y. With the rotation of the rotating shaft 17 of the feeding roller 14, the hopper 16 rises at a predetermined timing and is pushed up toward the feeding roller 14 on the paper P on the feeding tray 5.

  The apparatus including the feeding tray 5, the feeding roller 14 and the hopper 16 is the automatic feeding apparatus 2, and in order from the sheet P positioned on the uppermost surface as the feeding roller 14 rotates. The unit is picked up by the number of units with the help of a separation pad or the like, which is an example of a separation action unit provided in the vicinity of the feeding roller 14, and is sent downstream in the conveying direction.

  Downstream of the feeding roller 14 is provided a recording material detection means (not shown) (hereinafter simply referred to as a detection lever) that is an example of a liquid injection material detection means that detects the passage of the paper P. A conveyance roller 19 including a conveyance drive roller 19A and a conveyance driven roller 19B is provided downstream. Among them, the transport driven roller 19B is pivotally supported on the downstream side of the roller holder 18 for the transport driven roller. The roller holder 18 is provided so as to be rotatable about a rotation shaft (not shown) and is a torsion (not shown). The coiled spring is urged to rotate so that the conveying driven roller 19B is always in a nip state in pressure contact with the conveying driving roller 19A.

  The sheet P conveyed while being pinched by the conveying roller 19 is guided to a recording position 26 below the recording head 13, and the operation of the carriage 10 and the sheet P described above causes almost the entire recording surface of the sheet P to be covered. The desired recording is executed. The gap PG between the recording head 13 and the platen 28 provided opposite to the recording head 13 is an extremely important element for executing high-precision recording, and corresponds to the change in the thickness of the paper P. Are adjusted accordingly.

  Disposed downstream of the recording head 13 is a discharge roller 20 which is an example of a liquid ejecting material discharge unit configured by a discharge drive roller 20A and a discharge toothed roller 20B. The paper P discharged by the discharge roller 20 is discharged onto a placement surface 51 on a discharge stacker 50 which is an example of a liquid injection material receiving portion located further downstream.

  The discharging toothed roller 20B is a toothed roller having a plurality of teeth on the outer periphery thereof, and is rotatably supported by a roller holder (not shown) for the discharging toothed roller. An auxiliary toothed roller 22 is provided upstream of the discharging toothed roller 20 </ b> B, and the paper P is pressed slightly downward by the auxiliary toothed roller 22. Further, the transport driven roller 19B has a shaft center position slightly downstream of the transport drive roller 19A, and the discharge toothed roller 20B has a shaft position slightly upstream of the discharge drive roller 20A. It is arranged on the side.

  With such a configuration, the sheet P is in a curved state commonly called “back-sliding” that slightly protrudes downward between the transport roller 19 and the discharge roller 20 and faces the recording head 13. The sheet P at the position to be pressed is pressed against the platen 28, so that the sheet P is prevented from being lifted and recording is executed normally. The auxiliary toothed roller 22 is constituted by a toothed roller similar to the discharging toothed roller 20B, and is supported by a roller holder for an auxiliary toothed roller (not shown).

[Example]
Next, the configuration and operation mode of the opening / closing device of the discharge stacker according to the present invention applied to the ink jet printer 100 will be described. FIG. 4 is an enlarged perspective view of a main part showing the opening / closing device of the discharging stacker in a state where the discharging stacker is closed, and FIG. 5 is a side sectional view of the main part showing the opening / closing device of the discharging stacker in a state where the discharging stacker is closed. is there. FIG. 6 is a side sectional view of the main part showing the switchgear with the discharge stacker open, and FIG. 7 is a side sectional view of the main part showing the switchgear opened with the discharge stacker raised to the upper limit position. is there. FIG. 8 is a sectional side view for explaining the function and effect of the present invention.

  The discharge stacker 50 closes the front opening 4 of the recording apparatus main body 3 (hereinafter also referred to as the printer main body 3), which is an example of the liquid ejecting apparatus main body, and opens to the front when in use, so that the paper P on which recording has been performed It has a role to receive and hold. The discharge stacker 50 is rotatably attached to the printer main body 3 via the opening / closing device 1 of the present invention.

  The discharge stacker opening / closing device 1 has a lower limit position (position in FIGS. 1 and 6) when recording the position of the discharge stacker 50 on a normal sheet P, and a rigid recording such as a CD-R tray (not shown). A lifting and lowering unit 30 that can be switched in two steps with respect to an upper limit position (FIG. 7) when recording is performed using a material, and a rotating shaft 52 that supports an opening and closing operation of the discharge stacker 50. And a braking portion 32 for preventing a sudden opening / closing operation of the discharge stacker 50.

  The elevating unit 30 is provided on the printer main body 3 side, receives a pinion gear 33, a rack 34 provided on the printer main body 3 side and meshing with the pinion gear 33, and a rotating shaft 52 of the discharge stacker 50, and receives the discharge stacker. And a guide groove 35 that guides the guide 50 so that it can move vertically in the vertical direction, and a locking groove (not shown) that lifts the discharge stacker 50 upward and maintains the upper limit position. Has been.

  The rotating shaft 52 is provided on the base side of the discharging stacker 50, and the discharging stacker 50 rotates around the rotating shaft 52 and holds the rotating shaft 52 so as to move up and down. And a bearing portion (not shown) provided for the stacker 50.

  The braking portion 32 is externally fitted in a loose state with respect to the rotation shaft 52 of the discharge stacker 50, and a pinion gear 33 at one end and a shaft gear 36 that is an operated portion integral with the pinion at one end. A shaft holder 37, a damper gear 38 that meshes with the shaft gear 36 and revolves around the shaft gear 36 as the discharge stacker 50 rotates, and a damper 39 that suppresses rotation of the damper gear 38. It is constituted by.

Among these, the shaft holder 37 is a cylindrical sleeve-shaped member, and the inner diameter of the shaft holder 37 is formed to be somewhat larger than the outer diameter of the rotating shaft 52. As a characteristic configuration of the present invention, a one-way clutch 40 is incorporated in a shaft gear 36 that is integral with the shaft holder 37. As the one-way clutch 40, those having various configurations such as those using a saw blade-like locking claw in a ratchet mechanism can be used. The damper 39 fills a cylindrical container with a viscous fluid such as oil or air, and acts to brake the rotation of the rotor or the like attached to the rotation shaft of the damper gear 38.
The cylindrical container is provided with two flange-like attachment wing pieces 41, and a folded portion is formed at the tip of the cylindrical container with a substantially U-shaped cross section rising from the back surface of the discharge stacker 50. The damper 39 is attached to the attachment plate 42 in a fixed state.

Next, an operation mode of the opening / closing device 1 of the discharge stacker according to the present invention will be described.
(1) When the discharge stacker is opened (see FIGS. 5 and 6)
That is, the discharge stacker 50 is rotated from the closed state shown in FIG. 5 to the open state shown in FIG. 6 while the discharge stacker 50 is in the lower limit position. In this case, as the discharge stacker 50 rotates, the damper gear 38 revolves around the shaft gear 36 downward. Accordingly, the shaft gear 36 that meshes with the damper gear 38 receives a force to rotate in the direction indicated by the arrow B in FIG. 6, but the pinion gear 33 provided integrally with the shaft holder 37 is connected to the rack 34. Further, since the rotating shaft 52 of the discharging stacker 50 is in contact with the lower end of the guide groove 35 and further downward movement is restricted, the pinion gear 33 cannot rotate as a result. Therefore, the discharge stacker 50 does not move in the vertical direction.
Further, in this direction, since the one-way clutch 40 is in the connected state, the braking action by the damper 39 works, and the discharge stacker 50 rotates slowly.

(2) When closing the discharge stacker (see FIGS. 5 and 6)
The case where the discharge stacker 50 is rotated from the open state shown in FIG. 6 to the closed state shown in FIG. 5 with the discharge stacker 50 in the lower limit position will be described. In this case, as the discharge stacker 50 rotates, the damper gear 38 revolves around the shaft gear 36 upward. Accordingly, the shaft gear 36 that meshes with the damper gear 38 receives a rotating force in the direction indicated by the arrow A in FIG. 5. However, since the one-way clutch 40 is incorporated in the shaft gear 36, the shaft gear 36 moves in the direction of the arrow A. Is not transmitted to the shaft holder 37.

  Accordingly, since the pinion gear 33 provided integrally with the shaft holder 37 also does not rotate, the rotation shaft 52 of the discharge stacker 50 remains in contact with the lower end of the guide groove 35 and the upward movement is not performed. Does not occur. In this direction, since the connected state of the one-way clutch 40 is in a released state, the braking action by the damper 39 does not work, so that the discharge stacker 50 rotates relatively quickly, and a smooth transition to the closed state is achieved. It is done.

  FIG. 8 shows the behavior when the one-way clutch 40 is not incorporated. When the discharge stacker 200 is shifted from the open state to the closed state, it receives a reaction force indicated by an arrow R from the damper 201 and passes through a damper gear 202 attached to the output shaft of the damper 201 and a shaft gear 203 engaged therewith. A force indicated by an arrow F acts on the pinion gear 204 that rotates integrally with the shaft gear 203 as shown in the figure.

  When the force indicated by the arrow F acts on the pinion gear 204, the pinion gear 204 starts to climb while rotating on the rack 205. Therefore, the shaft holder 206 integrally including the pinion 204 and the shaft gear 203 and the rotating shaft 207 of the discharge stacker 200 fitted in the idle state are also raised, and as a result, the upper portion of the discharge stacker 200 is lifted. Since the position of the end surface exceeds the upper edge of the front opening of the ink jet printer, the discharge stacker 200 cannot be closed. The present invention prevents such problems from occurring.

  FIG. 7 shows a state in which the discharge stacker 50 is opened at the upper limit position. The braking force of the braking unit 32 and the operation of the one-way clutch 40 are the same as described above.

[Other embodiments]
The opening / closing device of the discharge stacker according to the present invention and the recording device provided with the opening / closing device are basically configured as described above, but are partially configured within the scope of the present invention. Of course, it is possible to make changes or omissions. For example, the portion where the one-way clutch 40 is provided is not limited to the shaft gear 36 but can be provided on the damper 39 itself in addition to the pinion gear 33, the shaft holder 37, and the damper gear 38. In addition, the damper 39 may be configured so that it operates only when the discharge stacker 50 is opened and does not operate when the stacker 50 is closed. Therefore, the damper 39 is not limited to the one-way clutch 40, and other configurations capable of obtaining the same operational effects are employed. It is also possible.

  As an example, the damper 39 is partitioned into a braking chamber filled with pressurized fluid and a non-braking chamber not filled with pressurized fluid, and rotated in a direction in which the braking chamber is pressurized according to the rotation direction of the damper gear 38. In this case, the braking force can be exerted, and when the non-braking chamber is rotated in the pressurizing direction, the braking force is not generated.

  Further, even if the damper gear 38 is directly meshed with the pinion gear 33, the same operation and effect can be obtained. In this way, the shaft gear 36 can be omitted.

  Further, by arranging the rack 34 on the front side of the main body opposite to the position shown in FIG. 4 with respect to the rotation shaft 52, the rotation shaft 52 does not rise when the discharge stacker is closed without using a one-way clutch. However, a space for the rack is required on the front side of the main body, which hinders downsizing of the product. In this configuration, the rotating shaft is lifted slightly when the discharge stacker is opened, so that the braking force of the braking unit is not applied when the stacker is opened.

  The present invention relates to a manufacturing field of a recording apparatus such as an ink jet printer, and more specifically, when the discharge stacker is closed, the discharge stacker does not rise with the rotation of the discharge stacker, and the correct position is maintained. Available when you want to.

FIG. 6 is a perspective view showing the printer when the discharge stacker is expanded. It is a perspective view showing a printer when the discharge stacker is closed. It is a sectional side view which shows the outline of an inkjet printer. It is a perspective view which shows the opening / closing apparatus at the time of obstruction | occlusion of the stacker for discharge. It is side sectional drawing which shows the opening / closing apparatus at the time of obstruction | occlusion of the stacker for discharge | emission. It is side sectional drawing which shows the opening / closing apparatus at the time of expansion of the discharge stacker. It is side sectional drawing which shows the opening / closing apparatus at the time of the stacker for discharge | emission raising. It is a figure explaining the behavior when the one-way clutch is not incorporated.

Explanation of symbols

1 Opening and closing device (for discharge stacker), 2 automatic feeding device,
3 Printer body (recording device body) 4 Front opening 5 Feed tray
10 carriage, 11 ink cartridge, 12 carriage guide shaft,
13 recording head, 14 feeding roller, 15 edge guide, 16 hopper,
17 Rotating shaft, 18 Roller holder (conveying driven roller), 19 Conveying roller,
19A Conveyance drive roller, 19B Conveyance driven roller, 20 Discharge roller,
20A discharging drive roller, 20B discharging roller, 22 auxiliary roller,
26 recording positions, 28 platens, 30 lifting means, 31 rotating means,
32 braking means, 33 pinion gear, 34 rack, 35 guide groove,
36 shaft gear, 37 shaft holder, 38 damper gear, 39 damper,
40 one-way clutch, 41 mounting blade, 42 mounting plate, 50 stacker for discharge,
51 mounting surface, 52 rotating shaft, 100 ink jet printer (recording apparatus),
P paper (recording material), X main scanning direction, Y sub-scanning direction,
PG Gap (between recording head and recording material), A arrow, B arrow, C arrow

Claims (6)

When not in use, the recording device main body is closed to close the front opening of the recording apparatus main body, and when in use, the discharge stacker that receives the recording material discharged and discharged is rotated with respect to the recording apparatus main body. An opening and closing device that is movably attached and responsible for opening and closing the discharge stacker,
The opening / closing device includes an elevating unit having a rack and pinion mechanism for switching the position of the discharge stacker at least in two stages, and an axis of the opening / closing operation of the discharge stacker and a rotation axis of the pinion A rotating shaft, and a braking part that acts on an actuated part integral with the pinion and brakes to prevent a sudden opening and closing operation of the discharge stacker,
The recording apparatus according to claim 1, wherein the braking force of the braking unit is configured to act only when the discharge stacker is opened and not when the stacker is closed.   The shaft holder according to claim 1, wherein the braking portion is externally fitted in a loose state with respect to the rotation shaft of the discharge stacker, and includes the pinion gear at one end and the shaft gear as the operated portion near the other end. A damper gear that is attached to the discharge stacker side and meshes with the shaft gear and revolves around the shaft gear as the discharge stacker rotates, and a damper that suppresses rotation of the damper gear. Recording device.   The recording apparatus according to claim 1, wherein a one-way clutch is incorporated in the braking unit.   The recording apparatus according to claim 3, wherein the one-way clutch is incorporated with respect to a shaft gear in the braking portion.   The opening / closing device of the discharge stacker according to any one of claims 1 to 4. When not in use, it closes to close the front opening of the liquid ejecting apparatus main body, and when in use, the discharge stacker that receives the liquid ejecting material that is discharged and discharged, and the discharge stacker to the liquid ejecting apparatus main body A liquid ejecting apparatus comprising: an opening / closing device that is pivotally attached to the discharge stacker and that opens and closes the discharge stacker;
The opening / closing device serves as a lifting / lowering portion having a rack and pinion mechanism that enables the position of the discharge stacker to be switched at least in two stages, and serves as an axis for the opening / closing operation of the discharge stacker. A rotation shaft that serves as a rotation axis, and a braking portion that acts on an acting portion integrated with the pinion and brakes to prevent a sudden opening and closing operation of the discharge stacker,
The liquid ejecting apparatus according to claim 1, wherein the braking force of the braking portion is configured to act only when the discharge stacker is opened and not actuated when the stacker is closed.

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