Opening / closing body holding device, medium conveying device, and recording device

Abstract

An opening / closing body holding device, a medium conveying device, and a recording device, in a structure capable of changing the angle of a support tray so as to enlarge the space above the support tray during maintenance of the device, the opening / closing body holding device includes: a main body portion; a cover which is in a mounted state in which the cover is fastened to the main body section by a fastening section and covers at least a portion of the main body section, the cover being detachable from the main body section by detaching the fastening section; an opening / closing body capable of switching between a closed state in which the fastening part fastened to the main body is covered and a first open state in which the fastening part fastened to the main body is exposed; and a holding member that can be attached to and detached from the main body, the holding member being capable of holding the opening / closing body in a second open state in which the opening / closing body is opened more than the first open state.

Description

Technical Field

[0001] The present invention relates to an opening and closing body holding device including an opening and closing body capable of opening and closing, a medium conveying device including the opening and closing body holding device, and a recording device including the medium conveying device. Background Art

[0002] In a recording device represented by a printer, an openable and closable tray is provided on the side of the device. When the tray is opened, it takes an inclined posture and supports the supplied medium.

[0003] The image forming apparatus described in Patent Document 1 is configured such that the angle of the manual feed tray can be changed, thereby expanding the space above the manual feed tray when performing maintenance on the apparatus.

[0004] Specifically, in the image forming device described in Patent Document 1, a tray link is rotatably provided on the device body, and a link slider is provided at the front end of the tray link. Guide portions for guiding the link slider are provided on both sides of the manual tray. The guide portion has a main track and a sub-track branched from the main track. When the link slider abuts against the end of the main track, the manual tray is maintained in a first open state, and when the link slider abuts against the end of the sub-track branched from the main track, the manual tray is maintained in a second open state that is more open than the first open state.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-156576

[0006] The guide portion described in Patent Document 1 has a structure including a main track and a sub-track branching from the main track as described above, so the guide portion is enlarged in a direction intersecting with the surface of the manual tray. Therefore, when the manual tray is set to the storage state, it is necessary to ensure a large space for storing the guide portion on both sides of the manual tray in the device body, and the device is enlarged. Summary of the invention

[0007] The opening and closing body holding device of the present invention for solving the above-mentioned problem is characterized in that it comprises: a main body; a cover, which is in an installed state of covering at least a part of the main body by being fastened to the main body by a fastening part, and the cover can be removed from the main body by removing the fastening part; an opening and closing body, which can be switched between a closed state covering the fastening part fastened to the main body and a first open state exposing the fastening part fastened to the main body; and a holding component, which can be loaded and unloaded relative to the main body, and the holding component can hold the opening and closing body by installing the opening and closing body in a second open state that is more open than the first open state.

[0008] In addition, the medium conveying device of the present invention is characterized in that it comprises: a device main body, having a medium conveying path for conveying a medium; and an opening and closing body retaining device, wherein the main body is configured to be openable and closable on the side of the device main body, forming a part of the medium conveying path by closing, and opening a part of the medium conveying path by opening, and the opening and closing body is a supporting tray capable of supporting the supplied medium.

[0009] Furthermore, the recording device of the present invention is characterized by comprising: a recording unit that performs recording on a medium; and the medium transport device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a diagram showing a media transport path of a printer.

[0011] Figure 2 This is a perspective view of the printer with its door closed.

[0012] Figure 3 This is a perspective view of the printer with its door open.

[0013] Figure 4 It is a perspective view of a locking mechanism for locking the door in a closed state.

[0014] Figure 5 1 is a front view of the printer, and is a diagram showing a first open state and a second open state of the support tray.

[0015] Figure 6 This is a perspective view of the right side of the printer with the support tray opened.

[0016] Figure 7 This is a perspective view of the door portion in a state where the cover is removed and the main body is exposed.

[0017] Figure 8 This is a perspective view of a holding member detachably provided at a free end of a door portion.

[0018] Fig. 9 This is a perspective view of the right side of the printer with the support tray opened and the arm removed.

[0019] Fig.10 It is a perspective view of the feed roller.

[0020] Fig.11 This is a diagram showing a state in which the support tray is held in the second open state by the holding member.

[0021] Fig.12 It is a perspective view showing a state where the second engagement portion of the holding member is engaged with the rotation shaft of the feed roller.

[0022] Fig.13 It is a perspective view showing a state in which the first engaging portion of the holding member is engaged with the support tray.

[0023] Fig.14 It is a three-dimensional diagram of the holding component.

[0024] Fig.15 It is a cross-sectional view of the holding portion and the cover member.

[0025] Description of Reference Numerals

[0026] 1: inkjet printer; 2: device body; 3: first medium box; 6: operation panel; 7: scanning unit; 8: discharge tray; 10A, 10B, 10C, 10D: ink storage unit; 11A, 11B, 11C, 11D: installation unit; 12: waste liquid storage unit; 13: conveyor belt; 14, 15: pulley; 16: lifter; 17: support tray; 17b: opening; 17c: rotation axis; 18: rotation axis; 18a: Groove; 19: Feed roller; 19a: Roller body; 19c: Elastic sheet; 19d: Hook; 20: Separation roller; 21: Pickup roller; 25: Feed roller pair; 28, 31, 32, 33, 34, 35, 36, 37, 38: Transport roller pair; 41, 42: Baffle; 43: Head unit; 44: Line head; 45: Stopped portion; 46: Hinge; 50: Opening and closing body holding device; 60: Door; 61: Main body; 61a: First an opening portion; 61b: a second opening portion; 62: a locking portion; 62a: a rotating shaft; 63: an operating lever; 65: a cover; 65a: a recess; 65b: a protruding portion; 66: a fixing screw; 68: a guide groove; 68a: an enlarged portion; 69: a threaded hole; 70: an arm; 71: a sleeve; 72: a feed roller cover; 73: a separating roller holding portion; 75: a holding member; 75a: a first engaging portion; 75b: a second engaging portion; 75c: a folded portion; 75 d: circle portion; 77: screw; 77a: flange portion; 80: first medium detection portion; 81: first detection unit; 82: fixing screw; 85: second medium detection portion; 86: second detection unit; 87: fixing screw; 89: encoder; 90: encoder unit; 91: fixing screw; 93: position sensor; 95: fixing screw; T1: transport path during recording; T2: return path; T3: connection path; T4: flipping path. DETAILED DESCRIPTION

[0027] Hereinafter, the present invention will be briefly described.

[0028] The opening and closing body holding device involved in the first embodiment comprises: a main body; a cover, which is in an installed state where it is fastened to the main body by a fastening part to cover at least a part of the main body, and the cover can be removed from the main body by removing the fastening part; an opening and closing body, which can be switched between a closed state covering the fastening part fastened to the main body and a first open state exposing the fastening part fastened to the main body; and a holding component, which can be loaded and unloaded relative to the main body, and the holding component can hold the opening and closing body in a second open state where the opening and closing body is more opened than the first open state.

[0029] According to this embodiment, since a holding component is provided, the holding component can hold the opening and closing body in a second open state in which the opening and closing body is more open than the first open state. Therefore, by setting the opening and closing body to the second open state, operations can be easily performed above the opening and closing body.

[0030] Furthermore, the holding member can be attached and detached relative to the main body, so there is no need to provide a mechanism around the opening and closing body for maintaining the opening and closing body in the second open state, which can suppress the enlargement of the device. It should be noted that since the holding member can be arranged at an appropriate position of the main body, the freedom of arrangement of the holding member can be obtained, and the enlargement of the main body caused by the holding member being arranged on the main body can be suppressed.

[0031] The second mode is a mode subordinate to the first mode, and is characterized in that the retaining member is a linear member having a first engaging portion engageable with the opening and closing body at one end and a second engaging portion engageable with the main body at the other end.

[0032] According to this method, since the retaining member is a linear member having a first engaging portion on one end side that can engage with the opening and closing body, and a second engaging portion on the other end side that can engage with the main body, it is possible to save space for setting the retaining member on the main body, and to suppress the enlargement of the main body.

[0033] A third aspect is an aspect dependent on the second aspect, and is characterized in that the holding member restricts movement of the cover in a direction of removal of the cover when the cover is in the mounted state.

[0034] The cover is mounted on the main body by the fastening part, but the part of the cover that is not fastened by the fastening part may bend in a direction away from the main body. When the cover is bent as described above, a gap is generated between the main body and the cover, and dust or the like enters the main body, which may damage the function of the main body.

[0035] According to this aspect, the holding member restricts movement of the cover in the direction of removal of the cover when the cover is in the attached state, so that the deflection can be suppressed and intrusion of dust and the like into the main body can be suppressed.

[0036] Furthermore, the holding member can not only hold the opening and closing body in the second open state but also suppress the bending of the cover as described above, so the holding member can be effectively used.

[0037] In addition, this aspect is not limited to the second aspect described above, and may be subordinate to the first aspect described above.

[0038] The fourth method is a method subordinate to the third method, and is characterized in that the cover comprises: a protrusion protruding toward the main body side; and a flange portion located at the top of the protrusion, the main body having a first opening portion exposing the protrusion, and the first snap-fit ​​portion or the second snap-fit ​​portion of the retaining component enters between the flange portion exposed in the first opening portion and the main body, thereby the retaining component restricts the movement of the cover in the direction of disassembly of the cover.

[0039] According to this method, since the first snap-fitting portion or the second snap-fitting portion of the retaining component enters between the flange and the main body, the retaining component limits the movement of the cover in the direction of disassembly of the cover. Therefore, it is easy to realize a structure in which the retaining component limits the movement of the cover in the direction of disassembly of the cover.

[0040] The fifth method is a method subordinate to the fourth method, and is characterized in that the main body has a second opening portion, and when one of the first snap-fitting portion and the second snap-fitting portion of the retaining part enters between the flange portion and the main body, the other of the first snap-fitting portion and the second snap-fitting portion can enter the second opening portion.

[0041] If one of the first engaging portion and the second engaging portion of the holding member enters between the flange portion and the main body portion, the other of the first engaging portion and the second engaging portion is in a free state, so that the holding member can be easily removed.

[0042] According to this embodiment, when one of the first snap-fitting portion and the second snap-fitting portion of the retaining member enters between the flange portion and the main body portion, the other of the first snap-fitting portion and the second snap-fitting portion can enter the second opening portion, so that the retaining member is difficult to fall off from the main body portion.

[0043] A sixth aspect is an aspect dependent on the second aspect, and is characterized in that both ends of the linear member forming the holding member are bent.

[0044] According to this aspect, since both ends of the linear member forming the holding member are bent, the holding property of the holding member is improved.

[0045] The medium conveying device involved in the seventh embodiment is characterized in that it comprises: a device main body, having a medium conveying path for conveying a medium; and the opening and closing body holding device involved in any one of the second to sixth embodiments, wherein the main body is configured to be openable and closable on the side of the device main body, forming a part of the medium conveying path by closing, and opening a part of the medium conveying path by opening, and the opening and closing body is a supporting tray capable of supporting the supplied medium.

[0046] According to this aspect, in the medium transport device, the effects of any one of the second to sixth aspects can be obtained.

[0047] However, this aspect may also be subordinate to the above-mentioned first aspect.

[0048] The medium conveying device involved in the eighth embodiment is characterized in that it comprises: a device main body having a medium conveying path for conveying a medium; and the opening and closing body retaining device involved in any one of the third to fifth embodiments, wherein the main body is arranged to be openable and closable on the side of the device main body, the opening and closing body is a supporting tray capable of supporting the supplied medium, the device main body has a medium containing part capable of containing the medium, the side of the device main body on which the medium containing part is arranged is used as the front surface of the device main body, the main body is arranged on the right side or the left side of the device main body, and the retaining component limits the movement of the cover in the removal direction of the cover on the device front surface side of the cover when the main body is closed.

[0049] According to this aspect, in the medium transport device, the effects of any one of the third to fifth aspects can be obtained.

[0050] In addition, in a structure in which the main body is arranged on the right side or the left side of the device body, when the cover is bent in a direction away from the main body, the bending is easily visible from the user side facing the device body, and dust and the like can easily enter from the gap between the main body and the cover.

[0051] However, according to this embodiment, the retaining member limits the movement of the cover in the direction of removal of the cover on the device front end surface side of the cover, thereby preventing the deflection of the cover that is easily visible from the user side, and also preventing dust and the like from easily entering through the gap between the main body and the cover.

[0052] A ninth aspect is an aspect dependent on the seventh aspect, and is characterized by comprising: a feed roller that feeds the medium from the support tray; and a rotation shaft of the feed roller, wherein the second engagement portion can engage with the rotation shaft of the feed roller.

[0053] According to this aspect, since the second engaging portion can engage with the rotating shaft of the feed roller, there is no need to separately provide a location for the second engaging portion to engage, and an increase in the cost of the device can be suppressed.

[0054] A tenth aspect is an aspect dependent from the ninth aspect, characterized in that a groove is formed on the rotation shaft of the feed roller, a hook portion engageable with the groove is provided on the feed roller, and the second engaging portion is engageable with the groove.

[0055] According to this embodiment, the hook portion provided on the feed roller engages with the groove provided on the rotating shaft of the feed roller, so that the feed roller can be positioned on the rotating shaft. Furthermore, since the second engaging portion of the holding member can engage with the groove, there is no need to form a separate portion for the second engaging portion to engage, which can suppress the increase in the cost of the device, and the second engaging portion can reliably engage with the rotating shaft of the feed roller.

[0056] The eleventh aspect is a aspect dependent on the seventh aspect, characterized in that a plurality of medium detection parts for detecting the medium are provided in the medium conveying path, and the plurality of medium detection parts can be accessed by removing the cover from the main body.

[0057] According to this aspect, a plurality of medium detection units for detecting a medium are provided in the medium conveying path, and the plurality of medium detection units can be accessed by removing the cover from the main body, so that maintenance of the medium detection units can be easily performed.

[0058] It should be noted that this embodiment is not limited to the seventh embodiment, but may also be subordinate to any one of the eighth to tenth embodiments.

[0059] A recording device according to a twelfth aspect includes: a recording unit that performs recording on a medium; and the medium transport device according to the seventh aspect.

[0060] According to this aspect, in the recording device including the recording unit that records on the medium, the effects of the seventh aspect can be obtained.

[0061] It should be noted that the recording device including a recording unit that records on a medium is not limited to the medium transport device according to the seventh aspect, and may include any one of the medium transport devices according to the eighth to eleventh aspects.

[0062] Hereinafter, the present invention will be described in detail.

[0063] Hereinafter, an inkjet printer 1 for recording by ejecting ink as an example of liquid onto a medium represented by recording paper will be described as an example of a recording device. Hereinafter, the inkjet printer 1 is simply referred to as a printer 1. It should be noted that from the perspective of transporting a medium, the printer 1 can also be regarded as a medium transport device 100. In this case, the printer 1 includes the medium transport device 100 and a line head 44 as an example of a recording unit described later.

[0064] It should be noted that the XYZ coordinate system shown in each figure is an orthogonal coordinate system, and the Y-axis direction is the direction intersecting the conveying direction of the medium, that is, the width direction of the medium, and is also the depth direction of the device. The +Y direction in the Y-axis direction is the direction from the front of the device to the back of the device, and the -Y direction is the direction from the back of the device to the front of the device.

[0065] The X-axis direction is the width direction of the device. When viewed from the operator of the printer 1, the +X direction is the left side, and the -X direction is the right side. The Z-axis direction is the vertical direction, which is the normal direction to the mounting surface G of the printer 1, that is, the height direction of the device. The +Z direction of the Z-axis direction is the upward direction, and the -Z direction is the downward direction.

[0066] In the following, the direction of conveying the medium is sometimes referred to as "downstream", and the opposite direction is sometimes referred to as "upstream". Figure 1 In the figure, the medium conveying path is shown by a dotted line. In the printer 1, the medium passes through Figure 1 The medium transport path shown by the dotted line is transported.

[0067] The F axis direction is the medium conveying direction between the line head 44 and the conveyor belt 13 described later, that is, in the recording area, the +F direction is the downstream of the conveying direction, and the opposite -F direction is the upstream of the conveying direction. The V axis direction is the direction orthogonal to the F axis direction.

[0068] like Figure 2 As shown, the printer 1 is a multifunction peripheral including a scanner unit 7 as an example of an image reading device on an upper portion of a device body 2. However, the scanner unit 7 may be omitted.

[0069] An operation panel 6 for performing various operation settings is provided on the upper portion of the apparatus body 2. The printer 1 has a side surface in the -Y direction, where the operation panel 6 and a first medium cassette 3 described later are provided, as the apparatus front surface.

[0070] The printer 1 is configured so that an expansion unit (not shown) can be connected to the lower portion of the apparatus body 2 and the medium can be fed from the expansion unit. However, the expansion unit may not be connected.

[0071] Below, refer to Figure 1 The media conveyance path of the printer 1 will be described. The apparatus body 2 includes a first media cassette 3 as an example of a media storage unit that stores media at a lower portion.

[0072] The first medium cassette 3 is provided with a pickup roller 21 that feeds the stored medium in the −X direction. The medium fed by the pickup roller 21 is fed to the feeding roller pair 31 by the feeding roller pair 25 .

[0073] It should be noted that, unless otherwise specified, the “roller pair” hereinafter is composed of a driving roller and a driven roller. The driving roller is driven by a driving source (not shown) to apply a conveying force to the medium, and the driven roller contacts the driving roller or the medium and rotates drivenly.

[0074] The medium receiving the conveying force from the conveying roller pair 31 is conveyed to a position between a line head 44 as an example of a recording head and the conveying belt 13, that is, facing the line head 44. Hereinafter, the medium conveying path from the conveying roller pair 31 to the conveying roller pair 32 is referred to as a recording conveying path T1.

[0075] The head unit 43 is constituted by a line head 44 as an example of a recording unit. The line head 44 performs recording by ejecting ink onto the surface of the medium. The line head 44 is an ink ejection head configured so that the nozzles ejecting ink cover the entire area in the width direction of the medium, and is configured so that the ink ejection head can record in the entire area of ​​the width of the medium without moving in the width direction of the medium. However, the inkjet head is not limited to this, and may also be a type that is mounted on a carriage and ejects ink while moving in the width direction of the medium.

[0076] The head unit 43 is provided to be able to advance and retreat relative to the recording conveyance path T1 , and is provided to be able to move between a recording position where it enters the recording conveyance path T1 to record on the medium and a retreat position where it retreats from the recording conveyance path T1 .

[0077] Figure 1 The head unit 43 is shown in a state where it is located at the recording position, and recording is performed on the medium in this state.

[0078] Reference numerals 10A, 10B, 10C, and 10D denote ink containers as liquid containers. Ink ejected from the line head 44 is supplied from each ink container to the line head 44 via a tube (not shown). The ink containers 10A, 10B, 10C, and 10D are detachably provided with respect to the mounting portions 11A, 11B, 11C, and 11D, respectively.

[0079] In addition, reference numeral 12 denotes a waste liquid storage portion for storing ink as waste liquid discharged from the line head 44 to a flushing cap (not shown) for maintenance.

[0080] The conveyor belt 13 is an endless belt hung around pulleys 14 and 15, and at least one of the pulleys 14 and 15 is driven to rotate by a motor (not shown). The medium is adsorbed on the belt surface of the conveyor belt 13 and conveyed to a position opposite to the line head 44. The medium adsorbed by the conveyor belt 13 can be adsorbed by a known adsorption method such as an air suction method and an electrostatic adsorption method.

[0081] Here, when recording through the position relative to the line head 44, the conveying path T1 intersects with both the horizontal direction and the vertical direction, and the medium is conveyed upward. That is, the F-axis direction intersects with both the horizontal direction and the vertical direction. Therefore, the ejection surface 44a that ejects ink in the line head 44 is also parallel to the F-axis direction, and intersects with both the horizontal direction and the vertical direction. In the present embodiment, the angle α formed by the F-axis direction relative to the horizontal direction is 75°. It should be noted that the angle α can be appropriately changed to other angles within the range of 0°<α≤90°. For example, the angle α can also be set within the range of 45°≤α≤80°. It should be noted that when miniaturizing the device body 2, 60°≤α≤80° is preferred.

[0082] The medium whose first surface has been recorded by the line head 44 is further transported upward by the transport roller pair 32 located downstream of the transport belt 13 .

[0083] A flapper 41 is provided downstream of the conveying roller pair 32, and the conveying direction of the medium is switched by the flapper 41. When the medium is directly discharged, the conveying path of the medium is switched by the flapper 41 to the conveying roller pair 35 facing upward, and the medium is discharged by the conveying roller pair 35 toward the discharge tray 8 as an example of a medium loading unit.

[0084] When recording is further performed on the second side of the medium based on the first side, the medium is conveyed in a direction toward the baffle 42 through the baffle 41. Figure 1 The medium pushes the baffle 42 to enter the return path T2. In the present embodiment, the return path T2 is a medium conveying path from the baffle 42 to the upper side. The conveying roller pairs 36 and 37 are provided in the return path T2. The medium entering the return path T2 is conveyed upward by the conveying roller pairs 36 and 37, and after the lower edge of the medium passes through the baffle 42 for a predetermined time, the rotation direction of the conveying roller pairs 36 and 37 is switched, thereby conveying the medium downward. At this time, the baffle 42 guides the medium so that the medium conveyed downward faces the conveying roller pair 33.

[0085] The connection path T3 is connected to the return path T2. In the present embodiment, the connection path T3 is a medium conveying path from the position of the baffle 42 to the conveying roller pair 34. In addition, the reversing path T4 is connected to the connection path T3. In the present embodiment, the reversing path T4 is a medium conveying path from the conveying roller pair 34 to the conveying roller pair 31 through the conveying roller pair 38. The reversing path T4 is a conveying path upstream of the position opposite to the line head 44, and is a conveying path located vertically below the line head 44.

[0086] The medium conveyed downward from the position of the flapper 42 receives conveying force from the conveying roller pairs 33 and 34 , reaches the conveying roller pair 38 , is bent and reversed, and is conveyed to the conveying roller pair 31 .

[0087] The second surface of the medium transported again to the position facing the line head 44, which is opposite to the first surface on which recording has been performed, faces the line head 44. Thus, the line head 44 can perform recording on the second surface of the medium.

[0088] It should be noted that a feed roller 19 and a separation roller 20 are provided near the conveying roller pair 38. The feed roller 19 is Figure 1 The support tray 17 (see Figure 2 , Figure 5 ) The roller for delivering the medium receives the power of the motor (not shown) to rotate. The separation roller 20 is given a rotation resistance by a torque limiter (not shown) and separates the medium by sandwiching the medium between the feed roller 19.

[0089] exist Figure 2 , Figure 5 The support tray 17 is an example of an opening and closing body, and is provided on the right side of the printer 1 so as to be openable and closable. The support tray 17 is provided with respect to the door portion 60 described later via a rotation axis 17c (see Figure 5 ) can be rotated and opened and closed by rotation. The opening and closing of the support tray 17 is performed by user operation.

[0090] The support tray 17 is configured to hold Figure 5 The first open state is shown as a first open state with reference numeral 17-1 and the second open state is shown as a second open state with reference numeral 17-2. The first open state is the state of the support tray 17 when supplying the medium, and the second open state is the state of the support tray 17 when performing maintenance.

[0091] The medium supported by the support tray 17 in the first open state is moved up and down by the lifter 16 (see FIG. Figure 6 ) is pushed toward the feed roller 19.

[0092] Next, the door portion 60 and the opening and closing body holding device 50 will be described.

[0093] like Figure 1~Figure 3 As shown in FIG. 1 , a door portion 60 is provided on the side surface in the −X direction, that is, the right side surface of the device body 2 .

[0094] A portion of the return path T2, a portion of the connection path T3, and a portion of the reversal path T4 are formed between the door portion 60 and the device body 2. In addition, a portion of the connection path T3 and a portion of the reversal path T4 are formed inside the door portion 60. Figures 2 to 3 , thereby opening a portion of the return path T2, the connecting path T3, and a portion of the inverting path T4.

[0095] The door portion 60 includes Figure 1 The conveying roller pairs 36 and 37 are shown as rollers in the -X direction, the conveying roller pairs 33 and 34, the feed roller 19, the separation roller 20, and the +Z direction roller of the conveying roller pair 38. When the door 60 is opened, the clamping of the conveying roller pairs 36, 37, and 38 is released.

[0096] By opening the door 60 in the above manner, when a paper jam occurs in the return path T2 , the connecting path T3 , or the reversing path T4 , the jammed medium can be removed.

[0097] Door 60 Figure 3 As shown, the door 60 is rotatably connected to the device body 2 through the hinge portion 46, and is opened and closed relative to the device body 2 by rotation. In this embodiment, the rotation axis of the door 60 is parallel to the Z-axis direction. In addition, in this embodiment, the end of the door 60 in the +Y direction is rotatably connected to the device body 2, and the end in the -Y direction is rotated as a free end.

[0098] It should be noted that, in the door portion 60, Figure 4 The hook-shaped locking portion 62 is provided, and the locking portion 62 is locked to the locked portion 45 provided on the device body 2, so that the door portion 60 is locked in a closed state relative to the device body 2. The locking portion 62 is configured to be rotatable around a rotation axis 62a extending in the Z-axis direction, and the rotation axis 62a is rotated to lock the door portion 60 in the closed state relative to the device body 2. Figure 4 The locking state shown in FIG. 4 and the unlocking state away from the locked portion 45 are switched. Although the detailed structure is omitted in the figure, the rotation shaft 62a can be switched between the locked state and the unlocking state away from the locked portion 45 by operating the operating lever 63 (see FIG. 4 ) provided on the door portion 60. Figure 2 ) and rotate.

[0099] Thus, since the lock portion 62 for holding the door 60 in the closed state relative to the device body 2 is provided, the door 60 can be reliably held in the closed state.

[0100] The door 60 is composed of a main body 61 as a base, and various components are mounted on the main body 61. A cover 65 is mounted on the main body 61, and the cover 65 constitutes the appearance of the door 60, that is, the appearance of the right side of the printer 1. In this embodiment, the main body 61 is formed of a metal plate, and the cover 65 is formed of a resin material.

[0101] The cover 65 is attached to the main body 61 by fastening a plurality of fixing screws to the main body 61 . Figure 6 The fixing screw 66 shown is one of the above-mentioned plurality of fixing screws. The fixing screw 66 is an example of a fastening portion. It should be noted that in this specification, descriptions of fixing screws other than the fixing screw 66 are omitted.

[0102] The fixing screw 66 is removed by opening the support tray 17. Figure 6 In other words, the support tray 17 can be in a closed state (covering the fixing screws 66 fastened to the main body 61) Figure 2 ) and a first open state ( Figure 6 )

[0103] When the cover 65 is removed, Figure 7 As shown, the surface of the main body 61 facing the cover 65 is exposed. When the cover 65 is removed, various sensors can be removed. The various sensors will be described below.

[0104] like Figure 1 As shown, a first medium detection unit 80 which is an optical sensor for detecting the passage of a medium is provided in the return path T2.

[0105] In addition, a second medium detection unit 85 which is an optical sensor for detecting the passage of a medium is provided in the connection path T3.

[0106] The first medium detection unit 80 is provided at Figure 7 The first detection unit 81 is fixed to the main body 61 by two fixing screws 82. The first detection unit 81 can be removed from the main body 61 by removing the fixing screws 82, thereby enabling maintenance such as replacement of the first medium detection unit 80.

[0107] In addition, the second medium detection unit 85 is provided at Figure 7 The second detection unit 86 is shown. The second detection unit 86 is fixed to the main body 61 by a fixing screw 87. By removing the fixing screw 87, the second detection unit 86 can be removed from the main body 61, thereby enabling maintenance such as replacement of the second medium detection unit 85.

[0108] In addition, Figure 1In the embodiment, an encoder 89 is provided near the first medium detection unit 80. The encoder 89 detects the rotation of a motor (not shown) which is a power source for the conveying roller pair 36 and 37. Figure 7 The encoder unit 90 is shown. The encoder unit 90 is fixed to the main body 61 by two fixing screws 91. By removing the fixing screws 91, the encoder unit 90 can be removed from the main body 61, thereby enabling maintenance such as replacement of the encoder 89.

[0109] In addition, Figure 1 In the embodiment, a position sensor 93 is provided near the second medium detection unit 85. The position sensor 93 detects the position of the lifter 16 (see Figure 6 , Fig. 9 ) The phase of the cam (not shown) that moves up and down. The position sensor 93 is Figure 7 The single fixing screw 94 shown is fixed to the main body 61 , and the position sensor 93 can be removed from the main body 61 by removing the fixing screw 94 , thereby enabling maintenance such as replacement of the position sensor 93 .

[0110] It should be noted that in Figure 7 In the figure, reference numeral 69 is a threaded hole into which the fixing screw 66 described above is fitted.

[0111] Next, the opening and closing body holding device 50 capable of holding the support tray 17 in the second open state will be described. The opening and closing body holding device 50 includes at least a main body 61, a cover 65, the support tray 17, and a holding member 75 described below.

[0112] First, the first open state and the second open state of the support tray 17 will be described again. Figure 5 As described above, the support tray 17 is configured to maintain a first open state denoted by reference numeral 17-1 and a second open state denoted by reference numeral 17-2. The first open state is the state of the support tray 17 when supplying a medium, and the second open state is the state of the support tray 17 when performing maintenance.

[0113] Here, the second open state is to reduce the possibility of disassembly using a screwdriver (not shown). Figure 6 The above arrangement is designed to reduce the difficulty of removing the cover 65 after removing the fixing screws 66. Figure 6 In the first open state, a screwdriver for removing the fixing screw 66 may interfere with the support tray 17. In this case, by switching the support tray 17 from the first open state to the Fig. 9In the second open state, the screwdriver used to remove the fixing screw 66 can be prevented from interfering with the support tray 17, and the fixing screw 66 can be easily removed.

[0114] Here, the structure for maintaining the first open state of the support tray 17 will be described. Figure 6 As shown in FIG. 1 , a recess 65a for accommodating the support tray 17 is formed on the cover 65, and guide grooves 68 extending along the Z-axis direction are provided on both sides of the recess 65a in the Y-axis direction. Figure 6 The guide groove 68 provided in the +Y direction is shown in FIG. 1 , and the guide groove 68 provided in the −Y direction is hidden.

[0115] Arms 70 are rotatably provided on both sides of the support tray 17 in the Y-axis direction. Fig. 9 As shown in FIG. 1 , a sleeve 71 is provided. The sleeve 71 can enter the guide groove 68 or can be removed from the guide groove 68 via an enlarged portion 68 a formed in the guide groove 68 , that is, a portion where the groove width is partially enlarged.

[0116] In such Figure 6 When the sleeve 71 enters the guide groove 68, the sleeve 71 is guided by the guide groove 68 along the Z-axis direction, and the sleeve 71 is as shown in FIG. Figure 6 As shown, the lower end portion of the guide groove 68 abuts against the support tray 17 , thereby maintaining the first open state.

[0117] In addition, if Fig. 9 As shown in FIG. 1 , when the sleeve 71 is removed from the guide groove 68, the support tray 17 is freed from the posture restriction by the arm 70 and can be further opened than the first open state. Here, the support tray 17 rotates downward due to its own weight in the absence of any holding means. Therefore, especially when the support tray 17 has a heavy weight, the rotation axis 17c (see FIG. 1 ) of the support tray 17 is rotated downward. Figure 5 ) is applied with excessive load on the surrounding structure, which may cause damage. Therefore, in the present embodiment, it is configured to be able to maintain the support tray 17 in the second open state by the holding member 75.

[0118] The holding member 75 is formed of a linear member in this embodiment, and is formed of a metal linear member as an example. It should be noted that in this embodiment, the linear member forming the holding member 75 has at least Fig.14 However, the holding member 75 is not limited to a linear member, and may be formed of other metal materials or resin materials.

[0119] exist Fig.14, reference numeral e1 denotes one end of the linear member forming the holding member 75 , and reference numeral e2 denotes the other end of the linear member forming the holding member 75 .

[0120] The first engaging portion 75a is formed by bending the one end e1 side, and the second engaging portion 75b, the folded portion 75c, and the circular portion 75d are formed by bending the other end e2 side.

[0121] When the holding member 75 holds the support tray 17 in the second open state, in this embodiment, Figure 8 As shown, the door 60 is detachably provided on the free end side, that is, on the front side of the device of the door 60 in the closed state.

[0122] like Figure 8 , Fig.15 As shown in FIG. 1 , a first opening 61a and a second opening 61b are formed in the main body 61. Fig.15 As shown, the cover 65 is provided with a protrusion 65b protruding toward the main body 61. A threaded hole is formed in the protrusion 65b, and a screw 77 can be fitted into the protrusion 65b.

[0123] The screw 77 has a flange 77a formed thereon. The top of the protrusion 65b is exposed to the surface of the main body 61 through the first opening 61a formed therein. Thus, the flange 77a is exposed to the surface of the main body 61.

[0124] The second engagement portion 75b of the holding member 75 can enter between the flange portion 77a and the main body 61. In this state, other portions of the holding member 75, such as the folded portion 75c and the circular portion 75d, can be in close contact with the main body 61.

[0125] The one end e1 side of the holding member 75 can enter the inside from the second opening 61 b ​​formed in the main body 61 , and the holding member 75 can be mounted without exposing the one end e1 to the outside when the holding member 75 is mounted.

[0126] By installing the holding member 75 in this way, it is possible to restrict Fig.15 The cover 65 moves downward, that is, the cover 65 moves in the removal direction of the cover 65.

[0127] Then, if Figure 6 , Fig. 9 As shown, a feed roller cover 72 is provided near the feed roller 19, and a part of the feed roller 19 is covered by the feed roller cover 72. The feed roller cover 72 is detachably provided by a snap-fit ​​structure (not shown).

[0128] In addition, the separation roller 20 is held by a separation roller holding portion 73. The separation roller holding portion 73 is detachably provided by a snap-fit ​​structure (not shown).

[0129] Fig.11 The state in which the feed roller cover 72, the feed roller 19, and the separation roller holding portion 73 are removed is shown.

[0130] like Fig.10 As shown, the feed roller 19 is provided on the rotating shaft 18, and a groove portion 18a is formed at the shaft end of the rotating shaft 18. An elastic sheet 19c capable of elastic deformation is integrally provided on the roller body 19a of the feed roller 19, and a hook portion 19d is integrally provided on the elastic sheet 19c. The hook portion 19d can be engaged with the groove portion 18a of the rotating shaft 18, thereby limiting the position in the axial direction so that the feed roller 19 does not fall off the rotating shaft 18. In addition, by deforming the elastic sheet 19c, the feed roller 19 can be removed from the rotating shaft 18.

[0131] like Fig.11 , Fig.12 As shown, when the feed roller cover 72, the feed roller 19 and the separation roller holding portion 73 are removed, the second engagement portion 75b of the holding member 75 can be engaged with the groove 18a of the rotating shaft 18. Therefore, the width of the groove 18a is larger than the wire diameter of the linear member forming the holding member 75.

[0132] In addition, if Fig.13 As shown, an opening 17 b is formed in the support tray 17 , and the first engaging portion 75 a of the holding member 75 can be hooked and engaged with the edge of the opening 17 b .

[0133] Thus, the holding member 75 can hold the second open state of the support tray 17 .

[0134] As described above, the opening and closing body holding device 50 includes a main body 61 and a cover 65. The cover 65 is fastened to the main body 61 with a fixing screw 66 as an example of a fastening portion so as to be in an installed state covering at least a portion of the main body 61, and can be removed from the main body 61 by removing the fixing screw 66. In addition, the opening and closing body holding device 50 includes: a support tray 17 that can be switched between a closed state covering the fixing screw 66 fastened to the main body 61 and a first open state exposing the fixing screw 66 fastened to the main body 61; and a holding member 75 that can be loaded and unloaded relative to the main body 61, and the holding member 75 can hold the support tray 17 in a second open state in which the support tray 17 is more open than the first open state.

[0135] Therefore, by setting the support tray 17 to the second open state, maintenance work on the upper side of the support tray 17 can be easily performed.

[0136] Furthermore, since the holding member 75 can be attached and detached relative to the main body 61, it is not necessary to provide a mechanism for maintaining the support tray 17 in the second open state around the support tray 17, which can suppress the enlargement of the device. It should be noted that since the holding member 75 can be arranged at an appropriate position of the main body 61, the degree of freedom of arrangement of the holding member 75 can be obtained, and the enlargement of the main body 61 accompanying the holding member 75 being arranged on the main body 61 can be suppressed.

[0137] The holding member 75 is a linear member having a first engaging portion 75 a engageable with the support tray 17 on one end e1 side and a second engaging portion 75 b engageable with the main body 61 on the other end e2 side.

[0138] This saves space for providing the holding member 75 in the main body 61 , and suppresses an increase in the size of the main body 61 .

[0139] In addition, when the cover 65 is in the mounted state, the holding member 75 restricts the movement of the cover 65 in the removal direction of the cover 65. Thus, the following effects can be obtained.

[0140] The cover 65 is mounted on the main body 61 by the fixing screws 66, but a portion of the cover 65 that is not fastened by the fixing screws 66 may bend in a direction away from the main body 61. When the cover 65 is bent as described above, a gap is generated between the main body 61 and the cover 65, and dust and the like enter the main body 61, which may impair the function of the main body 61.

[0141] However, when the cover 65 is in the installed state, the holding member 75 restricts the movement of the cover 65 in the removal direction of the cover 65, thereby suppressing the bending of the cover 65 and suppressing the intrusion of dust and the like into the main body 61. It should be noted that, the holding member 57 suppresses the bending of the cover 65, and therefore, the position for suppressing the bending is preferably the central part of the cover 65 in the Z-axis direction.

[0142] Furthermore, the holding member 75 can not only hold the support tray 17 in the second open state, but also suppress the bending of the cover 65 as described above, so the holding member 75 can be effectively used.

[0143] In addition, the cover 65 includes a protrusion 65b protruding toward the main body 61 and a flange 77a located at the top of the protrusion 65b, the main body 61 has a first opening 61a that exposes the top of the protrusion 65b, and the second engaging portion 75b of the holding member 75 enters between the flange 77a and the main body 61, so that the holding member 75 restricts the movement of the cover 65 in the removal direction. Thus, the structure in which the holding member 75 restricts the movement of the cover 65 in the removal direction of the cover 65 can be easily realized.

[0144] It should be noted that, in the present embodiment, although the second engaging portion 75b of the retaining member 75 is configured to enter between the flange portion 77a and the main body 61, the first engaging portion 75a of the retaining member 75 may also be configured to enter between the flange portion 77a and the main body 61.

[0145] In addition, the main body 61 has the second opening 61b, and the first engaging portion 75a of the holding member 75 can enter the second opening 61b. Thus, the following effects can be obtained.

[0146] In a state where the second engaging portion 75 b of the holding member 75 enters between the flange portion 77 a and the main body portion 61 , when the first engaging portion 75 a is in a free state, the holding member 75 can be easily removed.

[0147] However, since the first engaging portion 75 a of the holding member 75 can enter the second opening 61 b ​​, the holding member 75 is unlikely to fall off from the main body 61 .

[0148] In addition, if Fig.14 As shown in FIG. 1 , both ends of the linear member forming the holding member 75 are bent. This improves the holding property of the holding member 75.

[0149] In addition, the door portion 60, i.e., the main body portion 61, is provided to be openable and closable on the side of the device main body 2. The device main body 2 includes a first medium box 3 as a medium storage portion capable of storing a medium. In the device main body 2, the side on which the first medium box 3 is provided is the front surface of the device main body 2, and the door portion 60, i.e., the main body portion 61, is provided on the right side of the device main body 2.

[0150] The holding member 75 restricts movement of the cover 65 in the removal direction of the cover 65 on the device front surface side of the cover 65 when the door 60 , ie, the main body 61 is closed.

[0151] In a structure in which the main body 61 is arranged on the right side or left side of the device body 2, when the cover 65 is bent in a direction away from the main body 61, the bending is easily visible from the user side facing the device body 2, and dust and the like can easily enter from the gap between the main body 61 and the cover 65.

[0152] However, as described above, the retaining member 75 limits the movement of the cover 65 in the removal direction of the cover 65 on the device front side of the cover 65, thereby suppressing the deflection of the cover 65 that is easily visible from the user side, and also suppressing dust and the like from easily entering from the gap between the main body 61 and the cover 65.

[0153] It should be noted that, in the present embodiment, the door portion 60 , namely the main body portion 61 , is provided on the right side surface of the device main body 2 , but may also be provided on the left side surface.

[0154] In addition, the opening and closing body holding device 50 has a feed roller 19 for feeding the medium from the supporting tray 17 and a rotating shaft 18 of the feed roller 19. The second engaging portion 75b can engage with the rotating shaft 18 of the feed roller 19, so there is no need to set up a separate engaging portion for the second engaging portion 75b, which can suppress the increase in the cost of the device.

[0155] In addition, a groove 18a is formed on the rotating shaft 18, and a hook 19d that can be engaged with the groove 18a is provided on the feed roller 19, and the second engaging portion 75b can be engaged with the groove 18a. Thus, by engaging the hook 19d provided on the feed roller 19 with the groove 18a provided on the rotating shaft 18, the feed roller 19 can be positioned on the rotating shaft 18. In addition, since the second engaging portion 75b of the holding member 75 can be engaged with the groove 18a, it is not necessary to form a portion for the second engaging portion 75b to be engaged, so that the cost increase of the device can be suppressed, and the second engaging portion 75b can be reliably engaged with the rotating shaft 18.

[0156] In addition, in the medium conveying device 100, a plurality of medium detection units for detecting the medium are provided in the medium conveying path, specifically, a first medium detection unit 80 and a second medium detection unit 85. Furthermore, by removing the cover 65 from the main body 61, the plurality of medium detection units can be accessed, and thus, the plurality of medium detection units can be easily maintained.

[0157] The present invention is not limited to the above-described embodiment and modified examples, and various modifications can be made within the scope of the invention described in the claims, and these modifications are naturally included in the scope of the present invention.

[0158] For example, in the above embodiment, the opening and closing body held in the second open state by the holding member 75 is the support tray 17 for feeding the medium, but it may be another opening and closing body such as a paper discharge tray.

[0159] In addition, in the present embodiment, the second engaging portion 75 b of the holding member 75 is engaged with the rotating shaft 18 of the feed roller 19 , but it is needless to say that the second engaging portion 75 b may be engaged with another portion.

[0160] In addition, in the present embodiment, although one holding member 75 is provided, a plurality of holding members 75 may be provided.

Claims

1. An opening and closing body holding device, characterized in that: have: Main body; a cover which is fastened to the main body by a fastening portion so as to cover at least a portion of the main body, and which can be removed from the main body by removing the fastening portion; an opening and closing body capable of switching between a closed state covering the fastening portion fastened to the main body and a first open state exposing the fastening portion fastened to the main body; as well as The holding member is removable relative to the main body. By installing the opening and closing body in a second open state that is more open than the first open state, the holding member can hold the opening and closing body.

2. The opening and closing body holding device according to claim 1, characterized in that: The holding member is a linear member having a first engaging portion engageable with the opening and closing body at one end side and a second engaging portion engageable with the main body at the other end side.

3. The opening and closing body holding device according to claim 2, characterized in that: The holding member restricts movement of the cover in a direction of removal of the cover when the cover is in the mounted state.

4. The opening and closing body holding device according to claim 3, characterized in that: The cover has: a protrusion protruding toward the main body; and a flange portion, located at the top of the protruding portion, The main body has a first opening that exposes the protrusion. The first engaging portion or the second engaging portion of the holding member enters between the flange portion exposed in the first opening and the main body portion, whereby the holding member restricts movement of the cover in the direction of removal of the cover.

5. The opening and closing body holding device according to claim 4, characterized in that: The main body has a second opening. When one of the first engaging portion and the second engaging portion of the holding member enters between the flange portion and the main body portion, the other of the first engaging portion and the second engaging portion can enter the second opening portion.

6. The opening and closing body holding device according to claim 2, characterized in that: Both ends of the linear member forming the holding member are bent.

7. The opening and closing body holding device according to claim 3, characterized in that: The opening and closing body further includes an arm for holding the opening and closing body in the first open state. When the opening and closing body is in the first open state, the holding component does not hold the opening and closing body.

8. A medium conveying device, characterized in that: have: a device body having a medium conveying path for conveying a medium; and The opening and closing body holding device according to any one of claims 2 to 6, The main body is provided on the side of the device body so as to be openable and closable, and forms a part of the medium conveying path by closing, and opens a part of the medium conveying path by opening. The opening and closing body is a support tray capable of supporting the supplied medium.

9. The medium conveying device according to claim 8, characterized in that: The medium conveying device comprises: a feed roller that feeds the medium from the support tray; and The rotation axis of the feed roller, The second engagement portion is engageable with a rotation shaft of the feed roller.

10. The medium conveying device according to claim 9, characterized in that: A groove is formed on the rotating shaft of the feed roller, The feed roller is provided with a hook portion capable of engaging with the groove, The second engagement portion is engageable with the groove.

11. The medium conveying device according to claim 8, characterized in that: A plurality of medium detection units for detecting the medium are arranged in the medium conveying path. The plurality of medium detection parts can be accessed by removing the cover from the main body.

12. A medium conveying device, characterized in that: have: a device body having a medium conveying path for conveying a medium; and The opening and closing body holding device according to any one of claims 3 to 5, The main body is arranged to be openable and closable on the side of the device body. The opening and closing body is a support tray capable of supporting the supplied medium. The device body includes a medium storage portion capable of storing a medium. The side of the device body where the medium storage portion is disposed is used as the front surface of the device body, and the main body is disposed on the right side or the left side of the device body. The holding member restricts movement of the cover in a direction of removal of the cover on the device front surface side of the cover when the main body is closed.

13. A recording device comprising: a recording unit that records on a medium; and The medium conveying device as claimed in claim 8.

Images