JP2005247435A - Hopper device, recording device, and liquid jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hopper device in which a hopper and a hopper lever rotate independently, capable of avoiding the colliding sound generated when a recording material on the hoper runs against a pickup roller and reducing the hopper vibrating sound emitted from between the pickup roller and the hopper lever. <P>SOLUTION: The hopper device is equipped with the hoper 16 to heave the recording material P stacked in a feed cassette 2 and abutting to the pickup roller 4 and the hopper lever 8 to push up the hopper, in which the hopper and the hopper lever are coupled together in such a way as not separating from each other where the constitution is such that the rotating fulcra 17 and 9 of the hopper and hopper lever are positioned oppositely to each other and and the hopper 16 and lever 8 rotate independently in the opposite directions, and they rotate in a single piece in the condition that their rotating motions independent of each other are maintained. The hopper device 1 is equipped with a vibration reducing means 31. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention includes a hopper that directly lifts the recording material stacked in the feeding cassette and makes contact with the pickup roller, and a hopper lever that supports the hopper from below and pushes the hopper upward. The present invention relates to a hopper device configured such that a moving fulcrum and a rotation fulcrum of a hopper lever are located on the side away from each other, and the hopper and the hopper lever rotate independently in opposite directions, and a recording apparatus including the hopper device.

  Furthermore, the present invention relates to a liquid ejecting apparatus such as an ink jet recording apparatus that ejects (ejects) a liquid such as ink from a head thereof and executes recording (attaches liquid) on a recording material (liquid ejecting material) The present invention relates to a hopper device provided in a liquid ejecting apparatus.

  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. As a hopper device that lifts sheets stacked in a feeding cassette and makes contact with a pickup roller, as shown in Patent Document 1 below, a two-piece structure in which the hopper device is constituted by two members of a hopper and a hopper holder There is a hopper device. Such a two-piece structure hopper device is superior in that the hopper can be operated with a smaller force than a conventional hopper device constituted by only a single hopper. However, new problems as described below have been found, and improvements or new configurations that can solve such problems have been eagerly desired.

  First of all, there is a problem of the collision noise between the upper surface of the paper and the pickup roller, which is generated when the hopper is lifted vigorously. This phenomenon becomes prominent when the number of sheets set is reduced in the case of using a large capacity feeding cassette having a storage depth of 50 mm. In order to reduce the impact noise, it is conceivable to slow the hopper ascending speed. However, if the rising speed of the hopper is slowed down in the whole process, the sheet feeding speed is lowered and the printing speed is lowered. It is also conceivable to decelerate before the top dead center of the hopper where the generation of the collision noise is a problem. However, since the hopper and the hopper holder in the hopper device shown in Patent Document 1 are merely in contact with each other and are not connected to each other, even if the hopper holder decelerates before top dead center, the deceleration is transmitted to the hopper. Therefore, the rising speed before deceleration of the hopper holder is transmitted as it is as an inertial force, so that the collision sound is generated.

  Second, the hopper that has reached the top dead center vigorously collided with the hopper holder due to the reaction force that collided with the pickup roller. There's a problem. In addition, the vibration in this portion may be amplified to develop a larger noise.

  Third, unpleasant noise is also generated by fine vibrations caused by the collision between the hopper and the hopper holder. The hopper and the hopper holder are in an unconnected state related to all of the noise generated by the collision sound, vibration sound or fine vibration. However, due to the structure of the hopper and the hopper holder that rotate independently of each other, the connection has been difficult.

JP 2001-233460 A

  Therefore, the present invention was devised in view of the background arts and the problems that the background arts had, and in a hopper device in which a hopper and a hopper lever rotate independently, It is an object of the present invention to provide a hopper device, a recording device including the hopper device, and the like that can avoid a collision sound of a recording material with respect to the pickup roller and further reduce a vibration noise of the hopper generated between the pickup roller and the hopper lever. Is.

In order to solve the above problems, a hopper device according to a first aspect of the present invention includes a hopper that directly lifts recording materials stacked in a feeding cassette and makes contact with a pickup roller, and a hopper from below. A hopper lever that supports and pushes the hopper upward, and is configured such that the rotation fulcrum of the hopper and the rotation fulcrum of the hopper lever are separated from each other, and the hopper and the hopper lever rotate independently in opposite directions. The apparatus is characterized in that the hopper and the hopper lever are connected so as not to be separated from each other, and are configured to rotate integrally while maintaining an independent rotation operation. To do.
According to the first aspect of the present invention, the collision noise between the recording material on the hopper and the pickup roller caused by the inertial force of the hopper lever is avoided, and the vibration noise of the hopper between the pickup roller and the hopper lever is also reduced.

  The hopper device according to a second aspect of the present invention is the hopper apparatus according to the first aspect, wherein a speed reduction mechanism is incorporated in the driving means of the hopper lever so that the rising speed of the hopper lever is decelerated before top dead center. It is a feature.

  The hopper device according to a third aspect of the present invention is that, in the second aspect, the speed reduction mechanism is configured by changing the number of steps of the drive motor or adjusting the cam shape. It is a feature.

  According to the second to third aspects of the present invention, the collision noise between the recording material on the hopper and the pickup roller due to the rapid rotation of the hopper lever is avoided. Further, when adopting a configuration in which the number of steps of the drive motor is variable as the deceleration mechanism, it is possible to decelerate the rising speed of the hopper lever without changing the existing configuration. On the other hand, when a configuration in which the cam shape is adjusted as the deceleration mechanism is adopted, the cam height may be set in accordance with the deceleration, and the hopper lever ascending speed can be decelerated with a relatively simple configuration. Become.

  The hopper device according to a fourth aspect of the present invention is the hopper device according to any one of the first to third aspects, wherein the hopper device includes vibration reducing means for reducing vibration of the hopper generated between the pickup roller and the hopper lever. It is characterized by being provided.

  A hopper device according to a fifth aspect of the present invention is characterized in that, in the fourth aspect, the vibration reducing means is an elastic wire member that connects the hopper and the hopper lever so as to be slidable.

  The hopper device according to a sixth aspect of the present invention is characterized in that, in the fourth or fifth aspect, the vibration reducing means is a cushioning material provided on a sliding contact surface between the hopper and the hopper lever. .

  According to the fourth, fifth to sixth aspects of the present invention, various vibrations of the hopper generated between the pickup roller and the hopper lever are reduced, and the vibration noise generated with the vibration is also reduced. When an elastic wire is used as the vibration reducing means, the vibration is absorbed by the deformation of the elastic wire and the generation of noise due to vibration amplification is prevented. It also functions as a connecting member, so that the member can be effectively used. Further, when a shock absorbing material is used as the vibration reducing means, the fine vibration generated between the hopper and the hopper lever is absorbed by the compression deformation of the shock absorbing material, and the generation of abnormal noise due to the fine vibration is prevented.

A recording apparatus according to a seventh aspect of the present invention includes a hopper that directly lifts the recording materials stacked in the feeding cassette and makes contact with the pickup roller, and supports the hopper from below, and the hopper is directed upward. A hopper device comprising: a hopper lever that pushes up, the fulcrum of the hopper and the fulcrum of the hopper lever being located on a side away from each other, and the hopper and the hopper lever rotating independently in opposite directions. The apparatus is a hopper apparatus according to any one of the first to sixth aspects.
According to the seventh aspect of the present invention, the collision noise between the recording material on the hopper and the pickup roller caused by the inertial force of the hopper lever can be avoided, and the vibration noise of the hopper generated between the pickup roller and the hopper lever can be reduced. It is possible to provide a recording apparatus including the apparatus.

  A liquid ejecting apparatus according to an eighth aspect of the present invention includes a hopper that directly lifts the liquid ejecting material stacked in the feeding cassette and makes contact with the pickup roller, and supports the hopper from below. A liquid ejector comprising a hopper lever that pushes upward, the hopper pivot point and the hopper lever pivot point being located away from each other, and the hopper and hopper lever rotating independently in opposite directions. The apparatus is characterized in that the hopper and the hopper lever are connected so as not to be separated from each other, and are configured to rotate integrally while maintaining an independent rotation operation. To do.

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

  In the illustrated ink jet printer 100, a feeding cassette 2 capable of stacking a large number of recording materials P (hereinafter also simply referred to as paper P), which is an example of a liquid ejecting material, is stacked below the front surface. The ink jet printer is configured to be detachably attached to the recording paper P so that recording is performed on the paper P fed from the feeding cassette 2 and the recorded paper P is ejected onto the ejection stacker 50 positioned above the rear part. It is.

  Inside the feeding cassette 2 is provided a hopper device 1 that lifts the sheets P stacked in the feeding cassette 2 and guides them to the feeding path. The hopper device 1 includes a hopper 16 and a hopper lever 8 as will be described later. When feeding, the hopper lever 8 is rotated upward by the urging force of the push-up spring B, and the sheets P stacked by the hopper 16 are stacked. Of these, the uppermost sheet P is brought into pressure contact with the pickup roller 4 disposed above the back of the feeding cassette 2. Then, by the rotation of the pickup roller 4, the upper sheet P is pulled out from the inside of the feeding cassette 2, and a feeding roller 14 disposed inside the printer main body 3 and a retard roller 15 as an example of a separating unit. Toward the paper transport direction A. Note that a high friction material R is attached to a portion of the hopper 16 located immediately below the pickup roller 4 to prevent the lower paper P stacked there from moving.

  The feeding roller 14 is driven to rotate in the feeding rotation direction AF when a rotational driving force from a drive motor (not shown) is transmitted. On the other hand, the retard roller 15 is pivotally supported so as to be driven to rotate in a state having a certain rotational resistance, and receives a biasing force from the biasing means and is given a tendency to press against the feeding roller 14. Yes. The rotational resistance of the retard roller 15 is set so as to be smaller than the frictional resistance of the peripheral surface of the feeding roller 14 and larger than the frictional resistance between the sheets P to be double fed.

  Accordingly, when only one sheet P is supplied between the feeding roller 14 and the retard roller 15, the retard roller 15 receives the pressing force and the rotational force from the feeding roller 14 to rotate the feeding roller 15. The sheet P rotated by the direction RF and sandwiched between the feeding roller 14 and the retard roller 15 is fed toward the conveying roller 19. On the other hand, when a plurality of sheets P are fed between the feeding roller 14 and the retard roller 15, the retard roller 15 does not rotate, and only the uppermost sheet P drives the feeding roller 14. The sheet P is fed with the rotation, and the lower sheet P remains in that position. Then, a return lever (not shown) starts the sheet returning operation and returns the remaining lower sheet P into the feeding cassette 2.

  The fed paper P is predetermined in the sub-scanning direction Y orthogonal to the main scanning direction X by the driving rotation of the transport driving roller 19a while being sandwiched between the transport driving roller 19a and the transport driven roller 19b. It is transported at a transport amount of. Among these, a plurality of driven rollers 19b are provided, and are individually supported by a roller holder 18 so as to be driven to rotate. Further, the roller holder 18 constantly receives a biasing force from a biasing means (not shown), whereby the transport driven roller 19b is always kept in a nip state in pressure contact with the transport drive roller 19a.

  The sheet P conveyed while being pinched by the conveying roller 19 is pressed from above by the auxiliary pressing roller 5 and the pressing plate 6 located in the vicinity of the conveying driven roller 19b and downstream in the sheet conveying direction A, and lifts up. In a state in which this is prevented, the recording head 13 is guided to the recording position 26 below. The sheet P guided to the recording position 26 is detected by a detection device (not shown) to detect the passage timing of the sheet P, and recording is started. The operation of the carriage 10 and the sheet P covers almost the entire recording surface of the sheet P. The desired recording is performed.

  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, on the paper P or the like is mounted on the carriage 10. An ink cartridge C, which is an example of a liquid cartridge, is provided in the upper space in the printer body 3. Accordingly, the ink in the ink cartridge C is guided into the carriage 10 through an ink tube (not shown) by an ink supply means (not shown). The carriage 10 is connected to an endless belt 11 wound between pulleys provided at both ends in the main scanning direction X. The carriage 10 receives a driving force from a motor (not shown) and the carriage 10 receives the driving force. It can be reciprocated.

  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. Note that the gap PG is an extremely important element in executing high-precision recording, and is appropriately adjusted according to a change in the thickness of the paper P. Then, an operation for conveying the paper P or the like between the carriage 10 and the platen 28 in the sub-scanning direction Y by a predetermined conveyance amount, and the paper P from the recording head 13 while 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 onto the paper P or the like.

  On the downstream side of the recording head 13 in the sheet conveying direction A, 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 jagged roller 20b is provided. The paper P discharged by the discharge roller 20 is discharged onto a placement surface 51 on a discharge stacker 50 that is an example of a liquid injection material receiving portion positioned further downstream.

  The discharge jagged roller 20b is a toothed roller having a plurality of teeth on the outer periphery thereof, and is pivotally supported by a roller holder (not shown) for the discharge jagged roller so as to be freely rotatable. An auxiliary jagged roller 22 is provided in the vicinity of the discharge jagged roller 20 b, and the paper P is pressed slightly downward by the auxiliary jagged roller 22. Further, the transport driven roller 19b is disposed at a position slightly downstream of the transport drive roller 19a, and the discharge serpentine roller 20b is disposed at a 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 referred to as “back-sliding” that slightly protrudes downward between the transport roller 19 and the discharge roller 20. Then, the paper P located at the position facing the recording head 13 is pressed against the platen 28, thereby preventing the paper P from being lifted and recording is normally executed. The auxiliary knurled roller 22 is constituted by a toothed roller similar to the discharging jagged roller 20b, and is pivotally supported by a roller holder for an auxiliary jagged roller (not shown).

[Example]
Next, the configuration of the hopper device according to the present invention applied to the ink jet printer 100 will be described in more detail. FIG. 3 is a side sectional view showing the hopper device in a state where the hopper lever is at the bottom dead center, and FIG. 4 is a side sectional view showing the hopper device in a state where the hopper lever is being raised. FIG. 5 is a side sectional view showing the hopper device in a state where the hopper lever is at the top dead center, and FIG. 6 is a perspective view showing the hopper device viewed from the back side of the hopper.

  In the present embodiment, the paper P stacked in the feeding cassette 2 is directly lifted and brought into contact with the pickup roller 4, the hopper 16 is supported from below, and the fulcrum 17 of the hopper 16 The hopper device 1 is configured such that the rotation fulcrum 9 of the hopper lever 8 is located on the side away from each other, and the hopper 16 and the hopper lever 8 rotate independently in opposite directions.

  The hopper 16 is located above the hopper lever 8 and has a pivot point 17 on the front side in FIG. 1 and on the left side in FIGS. In addition, as a material of the hopper 16, a synthetic resin material can be applied as an example, but it is of course possible to use a metal material. Further, the upper surface of the hopper 16 is formed smoothly because the sheets P are stacked, and the height of the upper surface of the hopper 16 at the front end side corner is opposite to the pickup roller 4 as described above. The friction material R is stuck. On the other hand, on the lower surface of the hopper 16, a sliding contact rib 30 that is in direct sliding contact with the hopper lever 8, an end locking rib 33 that locks an elastic wire 32, which is an example of vibration reducing means 31 described later, and a center locking. Two ribs 34 are formed so as to face each other.

  The hopper lever 8 is a flat plate member made of metal having a pivot point 9 on the back side in FIG. 1 and on the right side in FIGS. The base side of the hopper lever 8 on which the pivot fulcrum 9 is provided is connected in the width direction, and two lever action pieces 35 whose tips are curved downward from both end portions are formed. On the upper surface of the curved portion at the tip of the lever action piece 35, a cushioning material 36 having a vibration absorbing action is attached. The cushioning material 36 is also an example of the vibration reducing means 31, and has the effect of absorbing fine vibrations generated between the hopper 16 and the hopper lever 8 by being in direct sliding contact with the sliding contact rib 30 in the hopper 16 and being compressed and deformed. .

  Further, the hopper lever 8 is constantly urged upward by a push-up spring B, and is pushed down by a pressing action of a pressing cam 37 provided on a cam shaft (not shown) so as to take a predetermined rotation position. ing. The rotation of the cam shaft is performed by the drive motor 38, and the rotation speed of the hopper lever 8 is set by the rotation speed of the drive motor 38 and the cam shape of the push-down cam 37. In this embodiment, a speed reduction mechanism 40 is provided that decelerates the rising speed of the hopper lever 8 before top dead center.

  The speed reduction mechanism 40 is a mechanism for preventing the collision noise of the paper P on the hopper 16 against the pickup roller 4 due to a sudden rise of the hopper lever 8 and is constituted by the drive motor 38 and the push-down cam 37 as described above. It is provided by being incorporated in the driving means 39 of the hopper lever 8 to be provided. In the present embodiment, as the speed reduction mechanism 40, for example, a configuration is adopted in which the rising speed of the hopper lever 8 is reduced by changing the number of steps of the drive motor 38 constituted by a stepping motor. Further, as the speed reduction mechanism 40, it is possible to adopt a configuration in which the rising speed of the hopper lever 8 is reduced by adjusting the cam shape of the pressing cam 37, or a configuration in which these two configurations are combined. .

  The hopper 16 and the hopper lever 8 are connected by the above-described elastic wire 32 so as not to be separated from each other, and rotate integrally with the hopper 16 and the hopper lever 8 being maintained independently of each other. It is configured to move. As an example of the elastic wire 32, piano wire or spring steel can be applied. As shown in FIG. 6, one lever action piece 35 in the hopper lever 8 is locked by the left and right end locking ribs 33 and the central locking rib 34 so as to be sandwiched between the hopper 16 at the central portion. . With this configuration, the elastic wire 32 absorbs vibration generated between the hopper 16 and the hopper lever 8 by bending and deforming itself, thereby preventing generation of noise accompanying vibration amplification. The elastic wire 32 also has a function as a connecting member for connecting the hopper 16 and the hopper lever 8 together.

  Next, the operation mode of the hopper device 1 configured as described above is as follows: (1) When the hopper lever is at the bottom dead center, (2) When the hopper lever is in the middle of ascending, (3) The hopper lever is at the top dead center A description will be given for each case.

(1) When the hopper lever is at bottom dead center (see Fig. 3)
When the hopper lever 8 is at the bottom dead center, that is, in a standby state before a paper feed command is issued, the hopper lever 8 is substantially horizontal as shown in FIG. The side (tip side) is inclined slightly downward.

(2) When the hopper lever is on the way up (see Fig. 4)
When a paper feed command is issued for the paper P, the hopper lever 8 starts to rotate clockwise in FIG. When the hopper lever 8 begins to rotate, the lever contact piece 35 of the hopper lever 8 pushes the sliding contact rib 30 upward via the cushioning material 36, and the hopper 16 is rotated counterclockwise in FIG. Rotate. At this time, the rotation speed of the hopper lever 8 is a normal rotation speed, which is relatively high.
Then, when reaching the top dead center before the hopper lever 8, the speed reduction mechanism 40 is operated, and the ascending speed of the hopper lever 8 is decelerated. Further, since the hopper 16 is also connected to the hopper lever 8 by the elastic wire 32, the rising speed of the hopper 16 is also reduced.

(3) When the hopper lever is at top dead center (see Fig. 5)
Accordingly, the paper P on the hopper 16 gently comes into contact with the pickup roller 4 so that no collision noise is generated. Further, the hopper 16 moves to the hopper lever 8 side due to the reaction that the paper P on the hopper 16 abuts against the pickup roller 4, but due to the bending deformation of the elastic wire 32 interposed between them and the compression deformation of the buffer material 36. Since the vibration is absorbed, the vibration sound is also eliminated or reduced.

[Other embodiments]
The hopper apparatus according to the present invention and the recording apparatus including the hopper apparatus are basically configured as described above. However, partial configuration changes or omissions within the scope of the present invention are not deviated. Of course, it is also possible to perform the above. For example, instead of the elastic wire 32, the following configuration may be employed as a configuration for connecting the hopper 16 and the hopper lever 8. That is, as shown in FIG. 7, an elongated hole-shaped sliding contact groove 41 is provided on the sliding contact rib 30 on the lower surface of the hopper 16, and the lever working piece 35 in the hopper lever 8 is engaged with the sliding contact groove 41. The sliding contact shaft portion 42 is provided, and the hopper 16 and the hopper lever 8 can be connected in a state in which the independent sliding motion is maintained by the engagement sliding contact action between the sliding contact groove 41 and the sliding contact shaft portion 42. Is possible.

  7 is provided with a cylindrical sleeve-shaped cushioning material 44 around the central shaft 43, and a sliding contact outer cylinder 45 that is in direct sliding contact with the sliding contact groove 41 further around the cushioning material 44. It is comprised by providing. Accordingly, independent and smooth rotation of the hopper 16 and the hopper lever 8 is realized by the engagement sliding contact action between the sliding contact outer cylinder 45 and the sliding contact groove 41.

  In addition to providing only one elastic wire 32, it is also possible to provide a plurality of elastic wires 32 or a leaf spring-like elastic piece. Further, the elastic wire 32 can be provided so as to hold only one lever action piece 35 or can be provided so that both the lever action pieces 35 are held at once by further increasing the length.

It is a perspective view which shows the outline of an inkjet printer. It is a sectional side view which shows the outline of an inkjet printer. It is a sectional side view which shows a hopper apparatus when it exists in a bottom dead center. It is side sectional drawing which shows the hopper apparatus in the middle of a raise. It is a sectional side view which shows a hopper apparatus when it exists in a top dead center. It is a perspective view which shows the hopper apparatus seen from the hopper back surface side. It is a sectional side view which shows the other connection structure of a hopper and a hopper lever.

Explanation of symbols

1 hopper device, 2 feeding cassette, 3 printer body, 4 pickup roller, 5 auxiliary presser roller, 6 presser plate, 8 hopper lever, 9 rotating fulcrum,
DESCRIPTION OF SYMBOLS 10 Carriage, 11 Endless belt, 12 Carriage guide shaft, 13 Recording head, 14 Feeding roller, 15 Retard roller (separating means), 16 Hopper,
17 Rotating shaft, 18 Roller holder (conveying driven roller), 19 Conveying roller,
19a Carrying drive roller, 19b Carrying driven roller, 20 Ejecting roller,
20a discharge drive roller, 20b discharge roller, 22 auxiliary roller,
26 recording positions, 28 platens, 30 sliding ribs, 31 vibration reducing means,
32 elastic wire, 33 end locking rib, 34 central locking rib, 35 lever action piece,
36 cushioning material, 37 push-down cam, 38 drive motor,
39 (hopper lever) driving means, 40 speed reduction mechanism, 41 sliding contact groove, 42 sliding contact shaft portion, 43 central axis, 44 cushioning material, 45 sliding contact outer cylinder, 50 discharge stacker, 51 mounting surface, 100 ink jet printer (Recording device), P paper (recording material),
PG (between recording head and recording material), X main scanning direction, Y sub-scanning direction, B push-up spring, A paper transport direction, AF feed rotation direction, RF feed rotation direction,
R High friction material

Claims (8)

A hopper that directly lifts the recording materials stacked in the feeding cassette and makes contact with the pickup roller, and a hopper lever that supports the hopper from below and pushes the hopper upward. A hopper device having a configuration in which the rotation fulcrum of the hopper and the hopper lever are independently rotated in opposite directions,
The hopper device and the hopper lever are connected so as not to be separated from each other, and are configured to rotate integrally while maintaining an independent rotation operation.   2. The hopper device according to claim 1, wherein a speed reduction mechanism is incorporated in the driving means of the hopper lever so that the ascending speed of the hopper lever is decelerated before top dead center.   3. The hopper device according to claim 2, wherein the speed reduction mechanism is configured by making the number of steps of the drive motor variable or by adjusting a cam shape.   The hopper device according to any one of claims 1 to 3, wherein the hopper device is provided with vibration reducing means for reducing vibration of the hopper generated between the pickup roller and the hopper lever.   5. The hopper device according to claim 4, wherein the vibration reducing means is an elastic wire member that connects the hopper and the hopper lever so as to be slidable.   6. The hopper device according to claim 4, wherein the vibration reducing means is a cushioning material provided on a sliding contact surface between the hopper and the hopper lever. A hopper that directly lifts the recording materials stacked in the feeding cassette and makes contact with the pickup roller, and a hopper lever that supports the hopper from below and pushes the hopper upward. A hopper device having a configuration in which the rotation fulcrum of the hopper and the hopper lever are independently rotated in opposite directions,
The recording apparatus according to claim 1, wherein the hopper device is the hopper device according to claim 1. A hopper that directly lifts the liquid injection material stacked in the feeding cassette and makes contact with the pickup roller, and a hopper lever that supports the hopper from below and pushes the hopper upward. A liquid ejecting apparatus including a hopper device configured such that a rotation fulcrum of a hopper lever is located on a side away from each other, and the hopper and the hopper lever rotate independently in opposite directions,
The liquid ejecting apparatus according to claim 1, wherein the hopper and the hopper lever are connected so as not to be separated from each other, and are configured to rotate integrally while maintaining an independent rotating operation.

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