Supply device of roll medium and recording device

Abstract

The present application provides a supply device of a roll medium and a recording device. The supply device of the roll medium has a pull-out type lower holding portion that supports a shaft of the roll medium and holds the roll medium, and a guide member that abuts against the roll medium from below in a direction of the shaft by being pressed from below with respect to the roll medium held in the lower holding portion, and is displaced in correspondence with a change in an outer diameter of the roll medium. Further, the lower holding portion is capable of being pulled out in a first direction from a main body of the supply device, and the guide member abuts against the roll medium when the pulled-out lower holding portion is stored in the main body of the supply device, and retreats downward from a movement path of the lower holding portion against a force of being pressed upward from below.

Description

TECHNICAL FIELD

[0001] The present application relates to a supply device of a roll medium and a recording device provided with the supply device. BACKGROUND

[0002] Conventionally, a recording device provided with a roll medium such as a roll paper and performing printing on a continuous paper supplied from the roll medium is known.

[0003] For example, a printing device provided with a roll paper in two parts of upper and lower portions is disclosed in Patent Literature 1. According to the document, the roll paper is placed on a sheet supply device provided in the printing device. The supply device is provided with an arm member and a swing member provided at the top end thereof, and is configured to place the roll paper on the arm member from an obliquely upper side. Further, as shown in the document, the swing member at the top end of the arm member extends in a substantially horizontal direction, and the top end thereof is depicted as being relatively sharp. Figure 4

[0004] According to the description of Patent Literature 1, it is presumed that the placement of the roll paper to the supply device is performed by a user, but it is not easy to lift a large and heavy roll paper by hand and perform the placement, and efficiency is sought. For example, it can be considered that if the lower supply device is configured to be a pull-out type, efficiency of the placement of the roll paper can be achieved.

[0005] However, in the case where the pull-out type is applied to the supply device of Patent Literature 1, it is possible that the roll paper is damaged. In detail, when the roll paper placed in the pull-out type unit is moved horizontally and accommodated in the supply device, the swing member at the top end of the arm member will hit the roll paper, and thus it is possible that the roll paper is damaged.

[0006] Patent Literature 1: Japanese Patent Application Laid-Open No. 2016-104665 SUMMARY

[0007] The supply device of a roll medium according to the present application has a holding portion that supports a shaft of a roll medium and holds the roll medium, and a guide member that is pressed against the roll medium held in the holding portion from below in a direction of the shaft and displaced in correspondence with a change in an outer diameter of the roll medium, the holding portion being capable of being pulled out in a first direction from a main body of the supply device, and when the pulled-out holding portion is accommodated in the main body of the supply device, the guide member is in abutment with the roll medium and retreats downward from a movement path of the holding portion against a force of pressing upward from below.

[0008] ​The recording device according to the present application includes a supply device having a holding portion that supports a shaft of a roll medium and holds the roll medium, a guide member that abuts against the roll medium held in the holding portion by being pressed from below toward the direction of the shaft and that displaces in correspondence with a change in the outer diameter of the roll medium, and a paper feed path through which a sheet is fed out from the roll medium, and a recording portion that records on the sheet fed out from the roll medium, the holding portion being capable of being pulled out in a first direction from a supply device main body, the guide member abutting against the outer periphery of the roll medium when the pulled-out holding portion is housed in the supply device main body and retreating downward from the movement path of the holding portion against a force of being pressed upward from below. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 A perspective view of the recording device according to Embodiment 1 is shown from the front and above.

[0010] Figure 2 A side sectional view of the recording device.

[0011] Figure 3 An enlarged view of the supply device in Figure 2 and a view of the state in which the lower holding portion is pulled out.

[0012] Figure 4 A side view showing an outline of the guide member.

[0013] Figure 5 An enlarged perspective view of the swing portion.

[0014] Figure 6 A perspective view of the swing portion as viewed from below.

[0015] Figure 7 An enlarged view of the vicinity of the swing portion in Figure 4 .

[0016] Figure 8 A perspective view of the vicinity of the paper feed portion inside the supply device when the lower holding portion is pulled out and the inside of the supply device is viewed from the front surface.

[0017] Figure 9 A view of the action of the guide member when the roll medium is housed.

[0018] Figure 10 A side sectional view showing a first action of the roll medium according to Embodiment 2.

[0019] Figure 11 A side sectional view showing a second action of the roll medium.

[0020] Figure 12 A side sectional view illustrating the third action of the medium exiting the reel. Detailed Implementation

[0021] Implementation Method 1

[0022] Overview of the recording device

[0023] Figure 1 A perspective view of the recording device from the front and above.

[0024] The recording apparatus 200 disclosed in this application is an inkjet large-format printer that holds a roll of paper 1, formed by winding a sheet around a core member, in a rotatable manner, and prints by spraying ink onto the surface of a sheet pulled out from the roll of paper 1. A large-format printer refers to a printer capable of printing on sheets of relatively large size, such as A0 (841 mm) on its short side. The roll of paper 1 is a roll of paper formed by winding a sheet around a cylindrical core member, and it comes in various sizes. Furthermore, the sheet can be made of paper, resin film, fabric, or a sheet component composed of these materials.

[0025] like Figure 1 As shown, the recording device 200 comprises a recording unit 150, a supply device 100, etc. The recording device 200 is approximately cuboid in shape and has a structure in which the supply device 100 and the recording unit 150 are overlapped. The supply device 100 is a paper supply unit and houses two rolls of media 1. Furthermore, the extension direction of the rotation axis (axis 2) of the roll media 1 is defined as the X-axis direction, and the stacking direction of the roll media 1 is defined as the Y-axis direction. Additionally, the depth direction of the recording device 200 is defined as the Z-axis direction. The length of the recording device 200 in the X-axis direction is also referred to as the width, the top side marked by the arrow on the X-axis is also referred to as the right side, and the base side marked by the arrow on the X-axis is also referred to as the left side. Similarly, the length of the recording device 200 in the Y-axis direction is also referred to as the height, the top side marked by the arrow on the Y-axis is also referred to as the upper side, and the base side marked by the arrow on the Y-axis is also referred to as the lower side. Furthermore, the side where the user stands directly opposite the recording device 200 and places the reel of media onto the supply device 100 is the base end side of the Z-axis arrow, referred to as the pull-out direction. The opposite retraction direction is the top end side of the Z-axis arrow. Additionally, the pull-out direction is also referred to as upstream, and the retraction direction as downstream. The same applies to other diagrams.

[0026] like Figure 1 As shown, the recording unit 150 consists of a support platform 50, a guide 55, a carriage 60, a recording head 65, etc.

[0027] The support platform 50 is a plate-shaped member configured at substantially the center inside the recording section 150 and extending in the width direction. The guide section 55 is a rod-shaped or plate-shaped member supported to the rear surface from the obliquely upper side of the support platform 50 and extending in the width direction. The guide section 55 supports the carriage 60 in a movable manner. The carriage 60 is configured to be able to move in the width direction along the guide section 55 by a drive motor and a drive belt, not shown. The recording head 65 is mounted on the carriage 60. The recording head 65 is provided with a plurality of ink ejection holes, not shown, facing the support platform 50 side. The recording head 65 performs recording by ejecting ink to the sheet supported on the support platform 50.

[0028] Figure 2 A side cross-sectional view of a recording device.

[0029] As Figure 2 shown, the recording section 150 is configured to further include a conveyance section 70, a paper discharge support platform 80, a cutting section 90, and the like.

[0030] The conveyance section 70 is configured of an intermediate roller 71, a conveyance roller 72, and the like.

[0031] The intermediate roller 71 and the conveyance roller 72 support and convey the sheet supplied from the supply device 100 below. The intermediate roller 71 and the conveyance roller 72 have roller shafts extending in the width direction. A drive motor, not shown, is coupled to the roller shafts, so that the intermediate roller 71 and the conveyance roller 72 are rotationally driven. In the intermediate roller 71 and the conveyance roller 72, pairs of driven rollers, not shown, are provided, and the sheet is conveyed by being sandwiched by the respective roller pairs.

[0032] The paper discharge support platform 80 is configured at the downstream side of the support platform 50. The paper discharge support platform 80 supports the sheet that has passed through the support platform 50, and guides the sheet to a paper discharge port 81 formed on the front surface of the recording device 200. The cutting section 90 cuts the sheet at an arbitrary length according to the control of a control section, not shown, provided in the recording device 200. The sheet cut by the cutting section 90 is discharged from the paper discharge port 81.

[0033] In addition, although the recording section 150 is described as an inkjet type device in the foregoing, it can be another printing method. For example, it can be an electrophotographic type recording section 150 provided with a photosensitive drum.

[0034] Outline of a supply device

[0035] As Figure 2 shown, the supply device 100 according to the present application is a two-part structure configured of an upper holding section 10 and a lower holding section 40, and the lower holding section 40 is a pull-out type.

[0036] The supply device 100 includes an upper holding part 10, a lower holding part 40, and a paper supply part 11 that can independently supply sheets to the recording part 150 from the upper and lower parts, respectively.

[0037] Furthermore, although this embodiment describes a supply device 100 having both upper and lower holding parts, it may also be a structure with only the lower holding part 40.

[0038] Return to Figure 1 .

[0039] The upper holding part 10 is located at the upper part of the supply device 100. Regarding the placement of the roll medium 1 in the upper holding part 10, the user directly inserts the roll medium 1 from an obliquely upward position.

[0040] The lower holding part 40 is a pull-out type. When placing the roll medium 1, it is pulled out by grasping the handle part (not shown) below the lower holding part 40 and pulling it forward.

[0041] Figure 3 for Figure 2 The enlarged view of the supply device also shows the state in which the lower holding part is pulled out.

[0042] like Figure 3 As shown in the pull-out configuration diagram, the lower holding section 40 is composed of a base section 7, a pair of bearing sections 8, and a track (not shown). The lower holding section 40 is the part that supports the shaft 2 of the reel medium 1 and holds the reel medium 1. In addition, the pull-out direction and the retraction direction of the lower holding section 40 are also referred to as the first direction. In other words, the first direction is the horizontal direction from the front surface of the supply device 100.

[0043] The base part 7 is a rectangular plate-shaped component that forms the bottom surface of the lower retaining part 40.

[0044] The bearing section 8 is a symmetrical plate-shaped component erected from the left and right ends of the base section 7. A cutout 9 is provided near the center of the upper surface of each pair of bearing sections 8. This cutout 9 supports the shaft 2 of the roll medium 1, thereby holding the roll medium 1 in place. A track (not shown) extending in the Z-axis direction is provided on the end face of the base section 7 in the width direction. This track slides relative to a track receiving portion (not shown) located at a corresponding position on the main body of the supply device 100. This allows the lower holding section 40 to be pulled out and retracted. Furthermore, when the lower holding section 40 is in the retracted state, the shaft 2 of the roll medium 1 is connected to a drive mechanism (not shown) provided on the main body of the supply device 100, thereby enabling the roll medium 1 to be driven in both forward and reverse directions.

[0045] The paper feed section 11 is composed of a lower path member 12, an upper path member 13, a separation flap 14, a cam member 18, a guide member 30, and the like.

[0046] As shown in Figure 3 , the lower path member 12 is a support member that supports a sheet pulled out from the roll medium 1 from the back. The lower path member 12 is a member that forms a paper feed path 17 that feeds a sheet to the transport section 70 Figure 2 , and the upper surface thereof is inclined toward the obliquely upward direction in the depth direction. Further, in the inside of the plate-like member of the lower path member 12, the cam member 18 that drives the guide member 30 and the like are provided. Moreover, in the vicinity of the center of the upper surface of the lower path member 12, a receiving portion of the first rotation shaft 20 that engages with the fulcrum of the guide member 30 is provided.

[0047] The upper path member 13 is a member that is paired with the lower path member 12 and forms the paper feed path 17, and the lower surface thereof is inclined toward the obliquely upward direction in the depth direction along the upper surface of the lower path member 12. A sheet pulled out from the roll medium 1 passes through the paper feed path 17 and is handed over to the transport section 70 Figure 2 located above. Further, at the end portion of the roll medium 1 side in the upper path member 13, a receiving portion of the third rotation shaft 15 is provided, and the separation flap 14 is engaged.

[0048] The separation flap 14 is an anchor-like member that gently presses the roll medium 1 by a torsion spring not shown. The separation flap 14 is rotatable with the third rotation shaft 15 as a fulcrum. Further, at the end portion of the separation flap 14 close to the roll medium 1, a roller 16 is provided. The separation flap 14 is used for the ejection operation of the roll medium 1. The ejection operation of the roll medium 1 will be described later.

[0049] The guide member

[0050] Figure 4 is a side view that shows an outline of the guide member.

[0051] The guide member 30 is a guide member of the roll medium 1 composed of an arm portion 31, a swing portion 32, and the like.

[0052] As shown in Figure 4 , the arm portion 31 is a rod-like member that swings up and down like a seesaw with the first rotation shaft 20 as a fulcrum. The first rotation shaft 20 provided on the arm portion 31 engages with the receiving portion of the first rotation shaft 20 provided at the upper portion of the lower path member 12.

[0053] In an initial state before the roll medium 1 is set, the arm portion 31 extends in a manner that is longer on the upstream side and shorter on the downstream side with the first rotation shaft 20 as a fulcrum, in the first direction. On the upstream side of the arm portion 31, a bent portion that is bent slightly downward is provided in order to easily support the roll medium 1. The end portion on the downstream side of the arm portion 31 is set as one end, and the end portion on the upstream side is set as the other end. In addition, the other end is also referred to as a top end.

[0054] A coil spring 19 is connected at the end on the downstream side of the arm portion 31. The coil spring 19 is structured so as to be linked to a cam member 18 that is provided inside the lower path member 12, and to move the position of the top end of the arm portion 31 up and down in correspondence with the rotation of the cam member 18. In other words, the guide member 30 presses and abuts against the direction of the shaft 2 from below with respect to the roll medium 1 that is held on the lower holding portion 40. Furthermore, the guide member 30 is provided so as to displace in correspondence with the change in the outer diameter of the roll medium 1.

[0055] Figure 5 An enlarged perspective view of the swing portion.

[0056] A swing portion 32 is provided at the top end of the arm portion 31. The swing portion 32 is an induction member for the roll medium 1, and the top end thereof is provided protruding from the top end of the arm portion 31.

[0057] The swing portion 32 is composed of a first roller 33, two second rollers 34, 35, a torsion spring 37, and the like.

[0058] The swing portion 32 is a gable roof-shaped member that has a first side 38 on the downstream side and a second side 39 that extends downward on the upstream side from the first side 38. The first side 38 extends in a substantially horizontal direction, and the second side 39 extends downward on the upstream side at an angle of approximately 30 degrees with respect to the horizontal direction.

[0059] The second roller 34 is provided at the end portion on the upstream side of the first side 38 of the swing portion 32, and the second roller 35 is provided at the end portion on the downstream side. In other words, the second rollers 34, 35 are provided at both ends of the first side 38, respectively. A second rotation shaft 36 that extends in the width direction is provided at the center of the first side 38 of the swing portion 32. In other words, the second rotation shaft 36 is disposed between the two second rollers 34, 35. Furthermore, the second rotation shaft 36 engages with a receiving portion of the second rotation shaft 36 that is provided on the top end side of the arm portion 31, and the swing portion 32 is provided so as to be able to rotate with the second rotation shaft 36 as a fulcrum. In addition, the second rollers can also be structured as one.

[0060] The first roller 33 is provided at the end portion on the upstream side of the second side 39 of the swing portion 32.

[0061] In the preferred example, the arm portion 31 and the main body of the swing portion 32 are composed of resin. For example, ABS resin, polycarbonate resin is used. Alternatively, metal can be used. Furthermore, in the preferred example, the first roller 33 uses a roller made of resin. For example, a roller made of polyacetal resin is used. Alternatively, rubber, elastomer can be used as long as it is a material having high sliding properties and being difficult to scratch paper. The same applies to the second rollers 34, 35. Furthermore, although the details will be described later, the reason why the arm portion 31 is made of resin is that, since it becomes a structure in which a plurality of arm portions (guide members) are provided along the width of the sheet, load dispersion can be achieved.

[0062] In the preferred example, the diameter of the first roller 33 is about 15 mm and the length is about 5 cm. The same applies to the second rollers 34, 35.

[0063] Figure 6 A perspective view of the swing portion is shown from below.

[0064] A torsion spring 37 as a force applying portion is provided on the back of the swing portion 32, and presses the side on which the first roller 33 is disposed downward with respect to the second rotation shaft 36. With regard to the torsion spring 37, the center of the torsion spring 37 is inserted into the portions of the both ends of the second rotation shaft 36. Furthermore, the both ends of the torsion spring 37 are fixed to the L-shaped stop rib provided on the inner side of the arm portion 31.

[0065] Returning to Figure 4 .

[0066] Such a swing portion 32 swings like a seesaw with the second rotation shaft 36 as a fulcrum and the other end side of the arm portion 31 engaged. During the housing of the lower holding portion 40, the first roller 33 initially comes into contact with the roll medium 1. Along with the contact of the roll medium 1 with the first roller 33, the swing portion 32 moves with the second rotation shaft 36 as a fulcrum in a direction in which the first roller 33 is pressed downward. At this time, the resistance of the torsion spring 37 acts in a direction in which the roll medium 1 is pushed upward.

[0067] Furthermore, when a downward pressure that cannot be absorbed by the movement of the swinging part 32 alone is applied, the guide member 30 moves downward as a whole. Specifically, the guide member 30 contacts the roll medium 1 via the swinging part 32 and overcomes the upward pressing force from the coil spring 19, causing its top end to rotate downward around the first rotation axis 20, thereby retracting downward from the movement path of the lower holding part 40. In other words, the guide member 30 moves by swinging the swinging part 32 and the arm 31 in contact with the roll medium 1, so that the roll medium 1 is housed on the first side 38 of the swinging part 32. Moreover, in the housed state of the lower holding part 40, the two second rollers 34, 35 contact the outer periphery of the roll medium 1. In other words, in the housed state, the roll medium 1 is placed on the two second rollers 34, 35. Furthermore, it is sufficient for at least one second roller to contact the outer periphery of the roll medium 1.

[0068] Figure 7 for Figure 4 Enlarged view of the area near the swinging part.

[0069] Figure 7 This is a diagram showing the shape of the swinging part 32 with the downstream extension of the arm 31 set to be approximately horizontal compared to the bending part.

[0070] like Figure 7 As shown, the straight line connecting the centers of the rotation axes of the first roller 33 and the second roller 34 of the swing section 32 intersects the Z-axis direction at an angle α. In a preferred embodiment, the angle α is set to approximately 30 degrees. Furthermore, the angle β between the downstream extension of the arm section 31 and the Z-axis direction is approximately 1 degree compared to the bending section.

[0071] and Figure 4 In comparison, Figure 7 In the middle, although the swing section 32 is in a state where the whole is raised upward, the first roller 33 is located below the second rollers 34 and 35. In other words, the first roller 33 is positioned below the second rollers 34 and 35 when it is not in contact with the winding medium 1.

[0072] Figure 8 This is a perspective view of the area near the paper feeding section inside the feeding device, viewed from the front surface with the lower holding section pulled out.

[0073] like Figure 8As shown, multiple guide components are provided in the paper supply section 11. Furthermore, to distinguish each guide component, they are numbered as guide components 30A, 30B, 30C, etc. Multiple guide components are provided to accommodate roll media 1 of various sizes. The supply device 100 is designed to accommodate roll media 1 with a sheet width of 10 inches to 44 inches and a diameter of approximately 10.3 cm to 17 cm. However, it is not limited to these sizes; roll media 1 outside the aforementioned size range can also be used depending on the design specifications.

[0074] like Figure 8 As shown, guide member 30A is positioned approximately 14 inches from the location of a flange (not shown) on the right end face of the roll medium 1, which is to be mounted on it (reference position). Guide member 30B is positioned approximately 20 inches from the location of the flange (not shown) on the right end face of the roll medium 1. Furthermore, guide member 30B is positioned approximately 31 inches from the location of the guide member 30B. In this manner, multiple guide members are arranged with a higher density near the reference position and a lower density further away from the reference position. Additionally, although not shown in the figure, guide members are also provided to the left of guide member 30C and to the right of guide member 30A, thus creating a structure that can support at least both ends of the roll medium 1 even in rolls with varying sheet widths.

[0075] With this structure, it is configured to accommodate roll media 1 with a sheet width of 10 inches to 44 inches.

[0076] Figure 9 This is a diagram illustrating the motion of the guiding components during the storage of media on a roll, and it is compared with... Figure 3 Correspondingly. Figure 9 It shows from Figure 3 The storage process involves moving the lower holding part 40 into the supply device 100 from its current state.

[0077] As the lower holding portion 40 is pulled out and retracted into the main body of the supply device 100, the guide member 30 abuts against the winding medium 1 and retracts downward along the movement path of the lower holding portion 40, overcoming the upward pressing force from below. At this time, the first roller 33 initially contacts the winding medium 1 at a position lower than the height of the shaft 2 of the winding medium 1, and the guide member 30 rotates and retracts around the first rotation shaft 20 located on the downstream side in the first direction.

[0078] Furthermore, in the retracted state of the lower holding part 40, the roll medium 1 is rotatably mounted on the two second rollers 34, 35.

[0079] Further, although the structure in which the lower holding portion 40 is pull-out type has been described above, the upper holding portion 10 can also be pull-out type. In other words, among the holding portions arranged in the vertical direction, all of the holding portions can be pull-out type, or at least the holding portions below the uppermost holding portion can be pull-out type.

[0080] As described above, the supply device 100 of the roll medium 1 and the recording device 200 provided with the supply device 100 according to the present embodiment can obtain the following effects.

[0081] The supply device 100 of the roll medium 1 has a lower holding portion 40 that supports the shaft 2 of the roll medium 1 and holds the roll medium 1, and a guide member 30 that abuts against the roll medium 1 by being pressed from below in the direction of the shaft 2 with respect to the roll medium 1 held on the lower holding portion 40, and that displaces in correspondence with a change in the outer diameter of the roll medium 1. Further, the lower holding portion 40 is capable of being pulled out in a first direction from the main body of the supply device 100, and when the pulled-out lower holding portion 40 is housed in the supply device main body, the guide member 30 abuts against the roll medium 1 and retreats downward from the movement path of the lower holding portion 40 against the force of being pressed from below.

[0082] According to the supply device 100, when the lower holding portion 40 on which the roll medium 1 is placed is housed, the guide member 30 retreats by pivoting about the first pivot axis 20 on the downstream side in the first direction, so it is possible to suppress damage to the roll medium 1 caused by the roll medium 1 colliding with the guide member 30.

[0083] The supply device 100 of the roll medium 1, when the pull-out direction in the first direction is set as upstream and the housing direction is set as downstream, the guide member 30 pivots about the first pivot axis 20 located on the downstream side in the first direction to retreat.

[0084] According to the supply device 100, since the guide member 30 retreats by pivoting about the first pivot axis 20, it is possible to suppress damage to the roll medium 1 caused by the roll medium 1 colliding with the guide member 30.

[0085] The guide member 30 is configured to include an arm portion 31 and a swing portion 32, one end of the arm portion 31 is located on the downstream side of the first pivot axis 20, and the swing portion 32 is provided on the other end side of the arm portion 31.

[0086] According to this structure, since the guide member 30 is configured to include the arm portion 31 and the swing portion 32, it is possible to moderate the impact when abutting against the roll medium 1.

[0087] The swing section 32 has a first roller 33 that contacts the roll medium 1 during the housing of the lower holding section 40, and at least one second roller that contacts the roll medium 1 housed in the lower holding section 40.

[0088] According to this structure, since the first roller 33 initially contacts the roll medium 1 during the housing of the lower holding section 40, the impact on the roll medium 1 at the time of contact can be mitigated by rotating the first roller 33. Also, since the first roller 33 is composed of resin, the occurrence of damage to the roll medium 1 at the time of contact can be further suppressed.

[0089] In the swing section 32, the first roller 33 is disposed on the upstream side compared to the second rollers 34, 35, and contacts the roll medium 1 at a position lower than the height of the shaft 2 of the roll medium 1 during the housing of the lower holding section 40.

[0090] According to this structure, since the first roller 33 contacts the lower side compared to the center of the roll medium 1 during the housing of the lower holding section 40, the retreat of the guide member 30 downward will be smooth by the rotation of the first roller 33.

[0091] A second rotation shaft 36 is provided on the swing section 32 on the other end side of the arm section 31, and the swing section 32 is disposed so as to be able to pivot about the second rotation shaft 36.

[0092] According to this structure, by being disposed so as to be able to pivot the swing section 32 about the second rotation shaft 36, the retreat of the guide member 30 downward will be smoother.

[0093] The second rollers 34, 35 are provided two, and the second rotation shaft 36 is disposed between the two second rollers 34, 35, and in the housed state of the lower holding section 40, the two second rollers 34, 35 contact the outer periphery of the roll medium 1.

[0094] According to this structure, in the housed state of the lower holding section 40, the roll medium 1 can be supported in a rotatable manner by the two second rollers 34, 35.

[0095] The swing section 32 has a torsion spring 37 as a biasing section that presses the side on which the first roller 33 is disposed from below with respect to the second rotation shaft 36.

[0096] According to this structure, when the first roller 33 contacts the roll medium 1, since a force in the direction of pushing up the roll medium 1 is generated by the torsion spring 37, the retreat of the guide member 30 downward will be smooth.

[0097] The first roller 33 is disposed lower than the second rollers 34, 35 without being in contact with the roll medium 1.

[0098] According to this structure, the first roller 33 can be brought into contact with the lower side of the roll medium 1 compared with the center of the roll medium 1 when in contact with the roll medium 1.

[0099] The shaft 2 of the roll medium 1 is linked to the driving mechanism when the lower holding portion 40 is in the housed state, so that the driving can be performed.

[0100] According to this structure, in the housed state of the lower holding portion 40, the sheet pulled out from the roll medium 1 can be fed by the driving mechanism.

[0101] The holding portion of the feeding device 100 of the roll medium 1 is disposed in multiple in the vertical direction, and the lower holding portion 40 lower than the uppermost portion can be pulled out.

[0102] According to this feeding device 100, the placement of the roll medium 1 to the lower holding portion 40 becomes easy.

[0103] According to the recording device 200, the feeding device 100 having the lower holding portion 40 that supports the shaft 2 of the roll medium 1 and holds the roll medium 1, the guide member 30 that is pressed from below toward the direction of the shaft 2 of the roll medium 1 held in the lower holding portion 40 and abuts and is displaced in correspondence with the change in the outer diameter of the roll medium 1, and the paper feeding path 17 through which the sheet pulled out from the roll medium 1 passes, the recording device 200 including the recording portion 150 that records on the sheet pulled out from the roll medium 1, the lower holding portion 40 being able to be pulled out from the main body of the feeding device 100, the guide member 30 abutting the outer periphery of the roll medium 1 when the pulled-out lower holding portion 40 is housed in the main body of the feeding device 100 and retreating downward from the movement path of the lower holding portion 40 against the force of the pressing from below to above.

[0104] According to the recording device 200, when the lower holding portion 40 of the roll medium 1 is housed, the guide member 30 retreats downward from the movement path of the lower holding portion 40, so that the occurrence of the damage of the roll medium 1 due to the collision of the roll medium 1 with the guide member 30 can be suppressed.

[0105] Embodiment 2

[0106] Ejection of roll medium

[0107] Figure 10 to 12 The ejection of the roll medium is shown.

[0108] Figure 10 to 12The supply device 110 of the present embodiment is different from Embodiment 1 in that a light reflection type sensor S that detects the presence or absence of a sheet is provided on the arm portion 31 of the guide member 30. The sensor S emits light from below the arm portion 31 of the guide member 30 toward a direction intersecting an imaginary line inside the paper feed path 17 through which the sheet of the roll medium 1 passes. Further, the sensor S detects the presence or absence of the sheet based on the presence or absence of reflection of the light. Hereinafter, with respect to the same structure as Embodiment 1, the same reference numerals are assigned and the description overlapping with Embodiment 1 is omitted.

[0109] Figure 10 A side sectional view for explaining a first operation of the roll medium 1 disposed in the lower holding portion.

[0110] As Figure 10 shown, in the first operation of the roll medium 1, the separation flap 14 is rotated in the direction of the arrow mark A by the force of a torsion spring (not shown) and is maintained in a state in which the roller 16 is in contact with the outer periphery of the roll medium 1.

[0111] Next, the roll medium 1 coupled to a drive mechanism (not shown) is reversely rotated in the direction of the arrow mark B.

[0112] By reversing the roll medium 1, the tip end of the sheet of the roll medium 1 is detected by the sensor S provided on the arm portion 31 of the guide member 30. If the tip end of the sheet is detected by the sensor S, the drive mechanism (not shown) is stopped, and thus the reverse rotation of the roll medium 1 is stopped.

[0113] Figure 11 A side sectional view for explaining a second operation of the roll medium 1.

[0114] As Figure 11 shown, the state in which the roller 16 is in contact with the roll medium 1 is maintained by the force of the torsion spring (not shown) of the separation flap 14 as in the first operation of the roll medium 1. Further, the roll medium 1 coupled to the drive mechanism (not shown) is forwardly rotated in the direction of the arrow mark D. The roller 16 in contact with the outer periphery of the roll medium 1 is driven to rotate in conjunction with the rotation of the roll medium 1.

[0115] Figure 12 A side sectional view for explaining a third operation of the roll medium 1.

[0116] As Figure 12As shown, the roll medium 1 is positively rotated in the direction of the arrow mark D by a driving motor (not shown). At this time, in the case where the sheet tip of the roll medium 1 is slightly stuck to the roll medium 1 due to a roll mark, static electricity, or the like of the roll, the sheet tip is separated from the roll medium 1 by the roller 16 of the separating flap 14. The sheet tip separated from the roll medium 1 passes through the paper feed path 17 by the weight of the sheet, and is delivered to the conveying section 70 (not shown) disposed above the feed device 110. Figure 2

[0117] In addition, although the head-out operation has been described in the feed device 110 related to the present application as an example of the pull-out type lower holding section 40, the head-out operation of the roll medium 1 can be similarly applied to the upper holding section 10 of the feed device 100 described in Embodiment 1. That is, the head-out operation can be applied even in the case where the user directly places the roll medium 1 into the upper holding section 10 from an obliquely upper direction.

[0118] In addition, although the sensor S in Embodiment 2 has been described as an example of a light reflection type sensor, a light transmission type sensor or the like can be used, and other detection methods can be used as long as the sheet can be detected.

[0119] As described above, according to the feed device 110 of the present embodiment, the following effects can be obtained.

[0120] The feed device 110 has the light reflection type sensor S that detects the presence or absence of the sheet on the arm section 31 of the guide member 30. The sensor S emits light toward a direction intersecting with an imaginary line inside the paper feed path 17 through which the sheet of the roll medium 1 passes. Further, the sensor S detects the presence or absence of the sheet based on the presence or absence of reflection of the light.

[0121] If the head-out operation of the roll medium 1 is performed using this structure, the placement of the roll medium 1 becomes easy without considering the sheet tip of the roll medium 1.

[0122] Symbol Explanation

[0123] 1...roll medium; 2...shaft; 10...upper holding section; 17...paper feed path; 20...first rotation shaft; 30...guide member; 31...arm section; 32...swing section; 33...first roller; 34, 35...second rollers; 36...second rotation shaft; 37...torsion spring; 40...lower holding section; 100, 110...feed device; 150...recording section; 200...recording device.​

Claims

1. A supply device of a roll medium, comprising: a holding portion that supports a shaft of a roll medium and holds the roll medium; a guide member that abuts against the roll medium by being pressed from below in a direction of the shaft while being held in the holding portion, and that displaces in correspondence with a change in an outer diameter of the roll medium, the holding portion is capable of being pulled out in a first direction from a main body of the supply device, the guide member does not abut against the roll medium in a state where the holding portion is pulled out, the guide member abuts against the roll medium and retreats downward from a movement path of the holding portion against a force of being pressed upward from below when the pulled-out holding portion is housed in the main body of the supply device.

2. The supply device of a roll medium according to claim 1, wherein, when a pulling-out direction in the first direction is set as an upstream side and a housing direction is set as a downstream side, the guide member retreats by pivoting around a first pivot shaft located on the downstream side in the first direction.

3. The supply device of a roll medium according to claim 2, wherein, the guide member is configured to include an arm portion and a swing portion, one end of the arm portion is located on the downstream side of the first pivot shaft, and the swing portion is provided on the other end side of the arm portion.

4. The supply device of a roll medium according to claim 3, wherein, the swing portion has: a first roller that contacts the roll medium during housing of the holding portion; and at least one second roller that contacts the roll medium in the pulled-in holding portion.

5. The supply device of a roll medium according to claim 4, wherein, in the swing portion, the first roller is disposed on the upstream side compared to the second roller, and contacts the roll medium at a position lower than a height of the shaft of the roll medium during housing of the holding portion.

6. The supply device of a roll medium according to claim 5, wherein, a second pivot shaft is provided in the swing portion on the other end side of the arm portion, and the swing portion is configured to be able to pivot around the second pivot shaft.

7. The supply device of a roll medium according to claim 6, wherein, the second roller is provided with two, the second pivot shaft is disposed between the two second rollers, and the two second rollers contact an outer circumference of the roll medium in a housed state of the holding portion.

8. The supply device of a roll medium according to claim 7, wherein, the swing portion is provided with a force applying portion that presses a side on which the first roller is disposed downward with respect to the second pivot shaft.

9. The supply device of a roll medium according to any one of claims 4 to 8, wherein, the first roller is disposed lower than the second roller in a state where the first roller does not contact the roll medium.

10. The supply device of a roll medium according to claim 1, wherein, the shaft of the roll medium is linked to a driving mechanism in a housed state of the holding portion, so that the roll medium is capable of being driven. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 11. The supply apparatus of the roll medium according to claim 1, wherein the holding portions are arranged in the vertical direction, and the holding portion below at least the uppermost portion is capable of being pulled out.

12. A recording apparatus, wherein a supply apparatus is provided, the supply apparatus having: a holding portion that supports a shaft of a roll medium and holds the roll medium; a guide member that abuts against the roll medium from below in a direction toward the shaft while being pressed against the roll medium held in the holding portion, and that displaces in correspondence with a change in the outer diameter of the roll medium; a paper feed path that feeds a sheet pulled out from the roll medium, the recording apparatus includes a recording portion that records on the sheet pulled out from the roll medium, the holding portion is capable of being pulled out from a supply apparatus main body in a first direction, the guide member does not abut against the roll medium in a state in which the holding portion is pulled out, when the pulled-out holding portion is stored in the supply apparatus main body, the guide member abuts against the outer periphery of the roll medium and retreats downward from the movement path of the holding portion against a force that presses from below upward.

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