Roll support device and recording device

Abstract

To provide a roll support device capable of easily replacing a roll sheet.SOLUTION: The roll support device according to the present invention rotates a roll sheet on which a sheet is wound to supply or wind up the sheet, and is equipped with: a holder section 24 that rotatably supports the roll sheet via an attachment member attached to the roll sheet and opens upward in a first direction that intersects the axial direction of the held roll sheet and a vertical direction; a guide section 30 that is movable in the first direction and a second direction opposite to the first direction and guides the roll sheet in the second direction toward the holder section 24; and a rotating member 34 that is rotatable around a rotation axis extending parallel to the axial direction and is arranged so that the attachment member supported by the holder section 30 is positioned on its rotation trajectory, wherein the rotating member 34 rotates in a direction that pushes the attachment member supported by the holder section 24 upward from below in conjunction with the movement of the guide section 30 in the first direction.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The present invention relates to a roll support device that supports a roll sheet around which a sheet is wound and is capable of pulling out or winding up the sheet, and to a recording device that includes the roll support device. [Background technology]

[0002] Conventionally, a recording device that records an image or the like on a sheet as a recording material is provided with a roll support device that supports a roll sheet so that the sheet can be supplied and wound up. A shaft-shaped mounting member is attached to the roll sheet, and the roll support device supports the roll member via the mounting member in a replaceable manner.

[0003] A roll sheet that is large in size or has many windings is heavy, and replacing the roll sheet can be hard work, so it is desirable to improve the workability of replacing the roll sheet. For example, Patent Document 1 discloses a roll support device in which a support part that supports the roll sheet via an attachment member is configured to be movable between the outside and inside of the device main body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7196975 Summary of the Invention [Problem to be solved by the invention]

[0005] In the roll support device described above, when the roll sheet is transferred from a movable support section to a support section fixed to the device body, the heavier the roll sheet, the worse the workability of replacing the roll sheet becomes.

[0006] In order to solve the above-mentioned problems, an object of the present invention is to provide a roll support device that allows for easy replacement of roll sheets. [Means for solving the problem]

[0007] In order to achieve the above object, the roll support device of the present invention comprises: A roll support device that rotates a roll sheet around which a sheet is wound to supply or wind up the sheet, a holder portion that rotatably supports the rolled sheet via a mounting member attached to the rolled sheet and that is open upward in a first direction that intersects with an axial direction of the held rolled sheet and in a vertical direction; a guide portion that is movable in the first direction and a second direction opposite to the first direction and that guides the rolled sheet in the second direction toward the holder portion; a rotating member that is rotatable about a rotation axis that extends parallel to the axial direction and is arranged so that the mounting member supported by the holder portion is located on the rotation locus; Equipped with The rotating member rotates in a direction pushing the mounting member supported by the holder portion from below upward in conjunction with movement of the guide portion in the first direction. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a roll support device that allows for easy replacement of roll sheets. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view of the printing apparatus with the paper discharge guide unit in a closed state. [Figure 2] FIG. 2 is a perspective view of the printing apparatus with the paper discharge guide unit in an open state. [Figure 3] FIG. 2 is a cross-sectional view of a main part of the printing apparatus. [Figure 4] 10A and 10B are explanatory diagrams of a procedure for setting a roll sheet in a printing apparatus. [Figure 5] FIG. 2 is a perspective view showing the paper feed guide in the storage position according to the first embodiment. [Figure 6]FIG. 4 is a perspective view showing the paper feed guide in the protruding position according to the first embodiment. [Figure 7] FIG. 2 is a perspective view of a paper feed guide portion that supports a roll sheet according to the first embodiment. [Figure 8] FIG. 2 is a perspective view of a paper feed guide portion that supports a roll sheet according to the first embodiment. [Figure 9] FIG. 2 is a perspective view showing a reference side end portion of a roll setting unit according to the first embodiment. [Figure 10] 3 is a front view showing a reference side end portion of a roll setting section according to the first embodiment. FIG. [Figure 11] FIG. 3 is a perspective view showing a non-reference side end portion of a roll setting section according to the first embodiment. [Figure 12] 4 is a front view showing a non-reference side end portion of a roll setting section according to the first embodiment. FIG. [Figure 13] 5A to 5C are explanatory diagrams of the operation of attaching the roll sheet according to the first embodiment. [Figure 14] 5A to 5C are explanatory views of the operation of removing the roll sheet according to the first embodiment. [Figure 15] FIG. 2 is an explanatory diagram of an assist lever according to the first embodiment. [Figure 16] 10A and 10B are explanatory views of a spindle locking mechanism according to a second embodiment. [Figure 17] FIG. 10 is a perspective view of a reference side end portion of a roll setting unit according to a second embodiment. [Figure 18] 10A and 10B are explanatory diagrams of the operation of attaching the roll sheet according to the second embodiment. [Figure 19] 10A and 10B are explanatory diagrams of the operation of removing the roll sheet according to the second embodiment. [Figure 20] FIG. 11 is a perspective view showing a reference-side roll setting unit according to the third embodiment. [Figure 21] FIG. 11 is a perspective view showing a non-reference side roll setting unit according to the third embodiment. [Figure 22] FIG. 11 is a cross-sectional view showing a reference side paper feed guide portion according to the third embodiment. [Figure 23] FIG. 11 is a cross-sectional view showing a non-reference side paper feed guide portion according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following describes in detail exemplary embodiments of the present invention with reference to the drawings. The dimensions, materials, shapes, and relative positions of the components described in the embodiments may be changed as appropriate depending on the configuration and various conditions of the device to which the invention is applied. In other words, the scope of the present invention is not limited to the following embodiments.

[0011] <Basic configuration of the device> First, we will explain the basic configuration of a printing apparatus 100 according to the present invention. The printing apparatus 100, which is an application example of the present invention, is an inkjet printing apparatus equipped with a sheet supplying device for supplying sheets as printing media and a printing unit (recording unit) for printing images on the sheets.

[0012] The printing device 100 is provided with an openable and closable paper discharge guide unit 500 on the front side of the device body. When the paper discharge guide unit 500 is in a closed state, the printing device 100 can feed a roll sheet, which is a sheet wound in a roll shape, and take up the sheet on which an image or the like is printed. When the paper discharge guide unit 500 is in an open state, a user can set a roll sheet in the paper feed unit of the printing device 100. FIG. 1 is a perspective view of the printing device 100 with the paper discharge guide unit 500 in a closed state. FIG. 2 is a perspective view of the printing device 100 with the paper discharge guide unit 500 in an open state.

[0013] In each drawing, the width direction (left-right direction) of the printing device 100 is indicated as the X-axis direction, the front-rear direction of the printing device 100 as the Y-axis direction, and the direction of gravity as the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are perpendicular to each other. The roll sheet is also printed so that the width direction (axial direction) of the roll sheet R is parallel to the width direction (X-axis direction) of the printing device 100. The lint device 100 is supported.

[0014] When the paper discharge guide unit 500 is in the open state, the roll setting unit 200 of the printing apparatus 100 is exposed, allowing the user to set a roll sheet in the roll setting unit 200. When the paper discharge guide unit 500 is in the closed state, a sheet pulled out from the roll sheet set in the roll setting unit 200 passes through the sheet transport unit 300 and reaches the printing unit 400, where an image is printed, before being discharged to the paper discharge guide unit 500. The user can input various commands to the printing apparatus 100, such as specifying the size of the roll sheet and setting the roll type, using various switches and the like provided on the operation panel 28 provided on the front side of the printing apparatus 100.

[0015] 3 is a schematic cross-sectional view of the main parts of the printing apparatus 100, showing the transport path of the sheet 1 in the printing apparatus 100. The printing apparatus 100 is provided with a roll setting unit 200, a sheet transport unit 300, a printing unit 400, a paper discharge guide unit 500, and a winding unit 600, in this order along the transport direction of the sheet 1. In the following description, the transport direction means the transport direction of the sheet 1 unless otherwise specified.

[0016] The sheet 1 drawn out from the roll sheet R set in the roll setting unit 200 is connected to the winding unit 600 and wound up. The roll setting unit 200 can also be considered to be a roll support device that supports the roll sheet R and draws out and supplies the sheet S. Similarly, the winding unit 600 can also be considered to be a roll support device that supports the roll sheet R and winds up the sheet S. The sheet 1 drawn out from the roll sheet R set in the roll setting unit 200 is transported through the sheet transport unit 300 to the printing unit 400, where an image can be printed.

[0017] The printing unit 400 is a recording unit that prints (records) an image on the sheet 1 by ejecting ink from an inkjet print head 80. The print head 80 ejects ink from its ejection orifices using ejection energy generating elements such as electrothermal conversion elements (heaters) or piezoelectric elements. When an electrothermal conversion element is used, the heat generated by the element causes the ink to bubble, and the resulting bubble-generating energy is used to eject the ink from its ejection orifices. Note that the print head 80 is not limited to an inkjet system. The printing system of the printing unit 400 is also not limited, and may be, for example, a serial scan system or a full line system. In the serial scan system, an image is printed by transporting the sheet 1 and scanning the print head 80 in a direction intersecting the transport direction of the sheet 1. In the full line system, an elongated print head 80 extending in a direction intersecting the transport direction of the sheet 1 is used, and an image is printed while the sheet 1 is continuously transported.

[0018] A shaft-shaped roll support member 2 is inserted into the hollow hole of the roll sheet R, and the roll support member 2 is driven in forward and reverse directions by a roll drive motor, which serves as a drive source. As a result, the roll sheet R is held at its center and rotated in forward and reverse directions as shown by arrows C1 and C2. The roll setting unit 200 is equipped with a drive unit 3, an arm member (moving body) 4, an arm rotating shaft 5, a first sheet sensor 6, a swinging member 7, a driven rotating body (pressure contact body) 8, a separation flapper (upper guide body) 9, and a flapper rotating shaft 10.

[0019] The sheet conveying section 300 is provided with a paper feed-side conveying guide 11, which is a guide member for guiding the sheet 1. The paper feed-side conveying guide 11 guides the front and back surfaces of the sheet 1 drawn out from the roll setting section 200, and leads the sheet 1 to the printing section 400. A conveying roller 12, a nip roller 13, and a second sheet sensor 14 are provided downstream of the paper feed-side conveying guide 11 in the conveying direction. The conveying roller 12 is rotated forward and backward in the directions of arrows D1 and D2 by a conveying roller driving motor, which is a drive source. The nip roller 13 is rotated forward and backward in the directions of arrows D1 and D2 by the conveying roller driving motor, which is a drive source. The nip roller R can be rotated in response to the rotation of the conveyor roller 12, and can be moved toward or away from the conveyor roller 12 by a nip roller separation motor, and the nip force can be adjusted. The conveyor roller 12 is rotated when the second sheet sensor 14 detects the leading edge of the sheet 1. The conveying speed of the sheet 1 by the conveyor roller 12 is set higher than the pulling speed of the sheet 1 by the rotation of the roll sheet R, thereby applying back tension to the sheet 1 and allowing it to be conveyed while kept taut. As a result, slack in the sheet 1 can be prevented, and the occurrence of creases in the sheet 1 and conveyance errors can be suppressed.

[0020] The printing unit 400 is provided with a print head 80, a platen 15, a suction fan 16, and a cutter 17. The platen 15 is provided with suction holes. The platen 15 adsorbs the back surface of the sheet 1 through the suction holes by using negative pressure generated by the suction fan 16. This regulates the position of the sheet 1 so that it fits along the platen 15, enabling the print head 80, which faces the front surface (print surface) of the sheet 1, to print an image with high precision. The cutter 17 is provided downstream in the transport direction from the platen 15 and the print head 80, and is a cutting unit that cuts the sheet 1 on which an image has been printed.

[0021] The discharge guide section 500 is provided with a discharge-side transport guide 18. The discharge-side transport guide 18 guides the back side of the sheet 1 pulled out from the printing section 400 while guiding the sheet 1 to the winding section 600. Here, the leading end of the sheet 1 is fixed to a paper tube set in the winding section 600, and by rotating the set paper tube in accordance with the transport speed of the transport roller 12, the sheet 1 printed in the printing section 400 can be continuously wound up.

[0022] A driven roller 18a is provided at the winding side end (downstream end in the conveying direction) of the discharge-side conveying guide 18. By providing the driven roller 18a on the discharge-side conveying guide 18, it is possible to prevent the sheet 1 from being damaged by being suddenly bent at the end of the discharge-side conveying guide 18. Furthermore, the discharge-side conveying guide 18 reduces the conveying resistance at the bent portion of the sheet 1, preventing large deflections from occurring between the conveying roller 12 and the driven roller 18a.

[0023] In the paper discharge guide section 500, the sheet 1 is transported along the paper discharge-side transport guide 18. With this configuration, it is possible to heat the paper discharge-side transport guide 18 with a heating section (not shown) as needed, thereby assisting in thermally fixing the ink ejected by the printing section 400 onto the sheet 1.

[0024] The discharge-side transport guide 18 is supported rotatably about a discharge guide rotation shaft 18b provided at the upstream end of the discharge-side transport guide 18 in the transport direction. By rotating the discharge-side transport guide 18, the discharge guide section 500 can be switched between an open state and a closed state. When attaching or detaching the roll sheet R to or from the roll setting section 200, the discharge-side transport guide 18 and the driven roller 18a are rotated to retract upward, opening the discharge guide section 500, allowing the roll sheet R to be set without interfering with the discharge guide section 500.

[0025] As shown in FIGS. 1 and 2, the main body of the printing apparatus 100 is provided with two main body legs 27 and a connecting portion 29 connecting these main body legs 27. The main body legs 27 support the weight of the sheet transport unit 300, printing unit 400, and paper discharge guide unit 500 provided in the main body from below, and also support the weight of the roll sheet R via the roll setting unit 200. One main body leg 27 is provided at a first end of the main body of the printing apparatus 100 in the X direction, and the other main body leg 27 is provided at a second end of the main body of the printing apparatus 100 opposite the first end in the X direction. Each main body leg 27 is provided with multiple casters arranged side by side in the Y direction. The main body legs 27 contact the floor surface via the casters, and dissipate the weight of the printing apparatus 100 to the floor surface. The connecting portion 29 connects the reference side and non-reference side main body legs 27, preventing the main body legs 27 and other parts from tipping over due to their weight. In the printing apparatus 100, In this case, two connecting portions 29 are arranged side by side in the Z direction.

[0026] Next, a method for setting the roll sheet R will be described in detail. Figures 4(a), (b), and (c) are explanatory diagrams of the procedure for setting the roll sheet R in the roll setting section 200 by the roll support member 2. Figure 4(a) is an exploded view of the roll sheet R and the roll support member 2. Figure 4(b) is a diagram showing how the roll support member 2 is fixed to the roll sheet R. Figure 4(c) is a diagram showing how the roll support member 2 is supported by the roll setting section 200.

[0027] The roll support member 2 is a mounting member that includes a spindle 19, a friction member 20, a reference side spindle flange 21, a non-reference side spindle flange 22, and a spindle gear 23, and is mounted to the roll sheet R. The reference side spindle flange 21 is provided at one end of the spindle 19, and the spindle gear 23 for rotating the spindle 19 is attached to the other end. In addition, friction members 20 are provided on the axially inner sides (spindle 19 sides) of the reference side spindle flange 21 and the non-reference side spindle flange 22, respectively.

[0028] When setting the roll support member 2 on the rolled sheet R, first, remove the non-reference side spindle flange 22 fitted onto the spindle 19, and then insert the spindle 19 into the hollow hole of the rolled sheet R. The outer diameter of the spindle 19 is smaller than the inner diameter of the hollow hole of the rolled sheet R, leaving a gap between them, allowing the user to insert the spindle 19 with minimal force. When one end of the rolled sheet R (the end on the right in FIG. 4( a)) comes into contact with the reference side spindle flange 21, the friction member 20 inside the reference side spindle flange 21 fits into the hollow hole of the rolled sheet R. This secures the reference side spindle flange 21 to the rolled sheet R. Then, pass the non-reference side spindle flange 22 onto the spindle 19, and fit the friction member 20 inside the non-reference side spindle flange 22 into the hollow hole of the rolled sheet R. This secures the non-reference side spindle flange 22 to the rolled sheet R.

[0029] Through the above-described procedure, as shown in Fig. 4(b), the rolled sheet R is attached to the roll support member 2. Then, as shown in Fig. 4(c), both ends of the roll support member 2 are fitted into the spindle holders 24 of the roll setting unit 200, thereby completing the setting of the rolled sheet R in the roll setting unit 200.

[0030] In this configuration, the outer diameters of the reference-side spindle flange 21 and the non-reference-side spindle flange 22 are assumed to be, for example, about 170 mm. The maximum outer diameter of the rolled sheet R is assumed to be, for example, about 180 mm, and the inner diameter of the hollow hole is assumed to be 2 inches (50.8 mm) or 3 inches (76.2 mm). However, the outer diameter of the spindle flange, the maximum outer diameter of the rolled sheet R, and the inner diameter of the hollow hole are not limited to these numerical values.

[0031] Next, we will explain the general configuration of the roll setting unit 200. In addition to the spindle holder 24 described above, the roll setting unit 200 is further provided with a drive gear 25 and a roll sensor 26.

[0032] The spindle holder 24 constitutes a holder section that rotatably supports the rolled sheet R via the roll support member 2. The spindle holders 24 are provided at positions corresponding to both end portions of the spindle 19. In other words, the roll setting section 200 has a spindle holder 24 (first holder) provided on the reference side and a spindle holder 24 (second holder) provided on the non-reference side. The spindle holder 24, which is the first holder, supports the first end portion of the spindle 19, and the spindle holder 24, which is the second holder, supports the second end portion of the spindle 19. The spindle holder 24 supports a second end of the spindle 19 opposite to the first end. The inner surface of the spindle holder 24 is formed in a U-shape that opens forward, and the opening is inclined upward at an angle relative to the Y direction (toward the front of the device). That is, the spindle holder 24 opens toward the front of the device and upward in the vertical direction. Here, "opening toward the front of the device and upward in the vertical direction" means that at least a portion of the spindle 19 is open toward the front of the device and upward in the vertical direction. This configuration prevents the spindle 19 fitted into the opening of the spindle holder 24 from accidentally coming off toward the front. Furthermore, the ends (first end and second end) of the spindle 19 can be inserted into and removed from the spindle holder 24 through the opening.

[0033] When the roll support member 2 is fitted into the spindle holder 24, the spindle gear 23 is connected to a roll drive motor via a drive gear 25 provided in the roll setting unit 200. The roll drive motor drives the roll sheet R together with the roll support member 2 to rotate forward and reverse, thereby enabling the supply of the sheet 1. By supporting the roll support member 2, the spindle holder 24 serves as a feed support unit that supports the roll sheet R so that it can be fed out, and the position of the roll sheet R relative to the printing device 100 is determined with high precision. The roll sensor 26 is a sensor that can detect whether the roll sheet R is set in the spindle holder 24.

[0034] In this way, by using the spindle 19 to hold the rolled sheet R, the rolled sheet R is set in the roll setting unit 200 by the spindle 19 and spindle holder 24 regardless of its width. This makes it possible to set rolled sheets R of various widths that correspond to sizes equal to or less than the length of the spindle 19, from large sizes such as A0 and A1 to small sizes, in the printing apparatus 100. In addition, because the end of the rolled sheet R is fitted into the reference-side spindle flange 21 fixed to the spindle 19, the position of the reference-side end of the rolled sheet R is fixed relative to the roll setting unit 200. Below, the detailed configuration of the roll setting unit 200 in the printing apparatus 100 will be described in multiple embodiments.

[0035] First Embodiment (Roll set section) A first embodiment of the present invention will be described with reference to Figures 5 to 15. First, a detailed configuration of the roll setting unit 200 according to the first embodiment will be described. Note that, for simplicity, the figures referred to below may omit illustrations of components such as the paper ejection guide unit 500, which is retracted above the roll setting unit 200.

[0036] The roll setting unit 200 is provided with a paper feed guide unit 30 on which both ends of the spindle 19 are placed. The paper feed guide unit 30 is composed of a reference-side paper feed guide 30a (first guide) and a non-reference-side paper feed guide 30b (second guide). The paper feed guide unit 30 (reference-side paper feed guide 30a and non-reference-side paper feed guide 30b) is configured to be movable toward the front of the device (front direction, first direction) and toward the back of the device (rear direction, second direction). More specifically, the paper feed guide unit 30 is configured to be movable in the Y direction between a protruding position (first position) where it protrudes from the device main body toward the front, and a retracted position (second position) where it is retracted into the device main body and toward the back of the device from the protruding position. In other words, the paper feed guide unit 30 is configured to be switchable between a state retracted in the device main body and a state protruding from the device main body toward the front.

[0037] Fig. 5 is a perspective view showing the roll setting section 200 when the paper feed guide section 30 is in the storage position. Fig. 6 is a perspective view showing the roll setting section 200 when the paper feed guide section 30 is in the protruding position. Fig. 7 is a perspective view showing the state in which the roll sheet R is supported by the paper feed guide section 30 when it is in the protruding position. Fig. 8 is a perspective view showing the state in which the paper feed guide section 30 is in the storage position. FIG. 9 is a perspective view showing the state in which the roll sheet R is supported. FIG. 9 is a schematic perspective view showing the configuration of the reference side of the roll setting unit 200, including the reference side paper feed guide 30a. FIG. 10 is a schematic front view of the reference side paper feed guide 30a, as seen from the front of the device. FIG. 11 is a schematic perspective view showing the non-reference side paper feed guide 30b. FIG. 12 is a schematic front view of the non-reference side paper feed guide 30b, as seen from the front of the device.

[0038] Each of the paper feed guides 30a and 30b has a paper feed guide groove 31 that receives the spindle 19. The paper feed guide groove 31 is a groove that opens upward and has opposing surfaces that face each other in the Y direction. The paper feed guide grooves 31 of the paper feed guides 30a and 30b are positioned approximately in the same position in the Y direction. With this configuration, the reference side end of the spindle 19 is supported by the paper feed guide groove 31 of the reference side paper feed guide 30a, and the non-reference side end of the spindle 19 is supported by the paper feed guide groove 31 of the non-reference side paper feed guide 30b.

[0039] When placing the roll sheet R on the paper feed guide section 30, the reference side paper feed guide 30a and the non-reference side paper feed guide 30b can be moved to the protruding position to ensure an operation area for placing the roll sheet R, thereby improving operability. On the other hand, by moving the reference side paper feed guide 30a and the non-reference side paper feed guide 30b to the retracted position, the protruding parts from the device main body can be retracted inside the device main body, thereby reducing the installation area of the device.

[0040] 7, the distance in the X direction between the paper feed guide groove 31 of the reference-side paper feed guide 30a and the paper feed guide groove 31 of the non-reference-side paper feed guide 30b is shorter than the length of the spindle 19. This allows the roll sheet R to land on the paper feed guide groove 31 via both ends of the spindle 19.

[0041] The reference-side paper feed guide 30a and the non-reference-side paper feed guide 30b are connected by a paper feed guide stay 38. More specifically, the paper feed guide stay 38 is provided between the paper feed guide 30a and the paper feed guide 30b in the X direction, with one end of the paper feed guide stay 38 connected to the paper feed guide 30a and the other end connected to the paper feed guide 30b. Therefore, by moving the paper feed guide stay 38 in the direction of arrow P (toward the back of the device), the reference-side paper feed guide 30a and the non-reference-side paper feed guide 30b can move almost integrally.

[0042] When the paper feed guide unit 30 is in the protruding position as shown in Fig. 7, by placing the roll sheet R on the paper feed guide unit 30 and moving the paper feed guide stay 38 in the direction of arrow P, the paper feed guide unit 30 moves to the storage position where it is stored in the device main body as shown in Fig. 8. In the roll setting unit 200, the spindle holder 24 is located on the rear side of the main body relative to the paper feed guide unit 30. The roll support member 2 is set in the spindle holder 24 by moving the paper feed guide unit 30 to the storage position. The roll support member 2 set in the spindle holder 24 becomes rotatable when a driving force is transmitted from the drive gear 25 to the spindle gear 23.

[0043] As shown in FIGS. 9 to 12, an assist lever 34 is provided at each of the reference side end and non-reference side end of the roll setting unit 200. The reference side assist lever 34 is disposed at a position sandwiched between the reference side paper feed guide 30a and the spindle holder 24 in the X direction. The non-reference side assist lever 34 is disposed at a position sandwiched between the non-reference side paper feed guide 30b and the spindle holder 24 in the X direction. The assist lever 34 is configured to be rotatable in a first rotation direction S1 and a second rotation direction S2 around a lever rotation shaft 35 extending in the X direction, and is biased in the first rotation direction S1 by a lever spring 39, which is a biasing member. The first rotation direction S1 is a direction in which a lever contact portion 36 provided on the assist lever 34, which will be described later, faces upward and toward the front of the device. The assist lever 34 is configured to be rotatable in a first rotation direction S1 and a second rotation direction S2 around a lever rotation shaft 35 extending in the X direction. The assist lever 34 is configured to be rotatable between a first rotation position where it abuts from below against the spindle 19 supported by the spindle holder 24, and a second rotation position where it rotates from the first rotation position in the first rotation direction S1. In other words, the assist lever 34 is disposed so that the spindle 19 of the roll support member 2 supported by the spindle holder 24 is located on its rotation trajectory.

[0044] The assist lever 34 has a lever contact portion 36 that comes into contact with the spindle 19 when the spindle 19 moves from the protruding position to the retracted position, and a detected portion 37 that is detected by the roll sensor 26. The roll sensor 26 can use, for example, a transmission type photosensor, and can detect when the detected portion 37 blocks light between an opposing light emitting element and a light receiving element. Although a transmission type photosensor is used here as an example, detection can also be performed using a mechanical switch or the like.

[0045] Each of the paper feed guides 30a and 30b has a paper feed guide contact portion 32 that contacts the assist lever 34 and transmits a force in the direction of rotation. The paper feed guide contact portion 32 provided on the reference side paper feed guide 30a is a shaft-shaped protrusion that extends in the X direction toward the reference side assist lever 34 and spindle holder 24. The paper feed guide contact portion 32 provided on the paper feed guide 30b is a shaft-shaped protrusion that extends in the X direction toward the non-reference side assist lever 34 and spindle holder 24.

[0046] A transfer section 33 is provided on the front side of the spindle holder 24 as a guide section that guides the spindle 19, which is transferred from the paper feed guide section 30, to the spindle holder 24. The transfer sections 33 are provided on both the reference side and the non-reference side of the printing apparatus 100, similar to the spindle holder 24, and are formed contiguous with the U-shaped inner surface of the spindle holder 24. When removing the spindle 19 from the spindle holder 24 through the opening, the spindle 19 must be moved so that it clears the U-shaped opening. Therefore, when a particularly heavy roll sheet R is attached to the spindle 19 (roll support member 2), a large operating force is required to move the spindle 19 upward, resulting in poor operability. Therefore, in the first embodiment, when removing the spindle 19 from the spindle holder 24, the assist lever 34 is configured to lift the spindle 19 and assist the removal operation. This configuration reduces the operating force required when removing the spindle 19, improving operability. The method of assisting the removal operation of the spindle 19 by the assist lever 34 will be described in detail later.

[0047] (Roll sheet installation operation) Next, the operation of attaching the roll sheet R to the roll setting unit 200 will be described. Figures 13(a) to 13(c) are explanatory diagrams of the operation of attaching the roll sheet R according to the first embodiment. Note that in the following explanation, the operation of attaching the roll sheet R will be described with reference to the non-reference side paper feed guide 30b, but the roll sheet R can also be attached in the same way to the reference side paper feed guide 30a.

[0048] 13(a) shows a state in which the paper feed guide section 30 (paper feed guide 30b) is positioned in the protruding position and the spindle 19 is placed on the paper feed guide groove 31. In the operation of attaching the roll sheet R, the worker first places the spindle 19 of the roll support member 2, on which the roll sheet R is attached, onto the paper feed guide groove 31 provided on both end sides of the paper feed guide section 30 positioned in the protruding position.

[0049] The sheet feed guide groove 31 is composed of a support surface 31a which is a horizontal surface, an opposing surface 31b which extends upward from the end of the support surface 31a in the front direction of the device, and an opposing surface 31c which extends upward from the end of the support surface 31a in the back direction of the device. The opposing surfaces 31b and 31c face each other in the Y direction. The opposing surface 31b faces the back of the device, and the opposing surface 31c faces the front of the device. The paper feed guide unit 30 supports the roll support member 2 from below using the support surface 31a, and moves the roll support member 2 in the Y direction while preventing the roll support member 2 from rolling in the Y direction and falling off the paper feed guide unit 30 using the opposing surfaces 31b and 31c.

[0050] Furthermore, when the paper feed guide unit 30 is in the protruding position, the assist lever 34 is in the second pivot position, and the detected portion 37 is in a position that can be detected by the roll sensor 26. When the roll sensor 26 detects the detected portion 37 in this manner, it is determined that the roll sheet R is not attached to the roll setting unit 200. The determination of the setting state of the roll sheet R based on the detection result of the roll sensor 26 is preferably performed by a known control unit including a CPU or the like.

[0051] 13(b) shows the state in which paper feed guide unit 30 (paper feed guide 30b) is in the process of moving from the protruding position to the retracted position. After roll sheet R is placed on paper feed guide unit 30 via roll support member 2, the operator moves paper feed guide unit 30 from the protruding position to the retracted position. When moving paper feed guide unit 30, the operator can move paper feed guide 30a and paper feed guide 30b together by sliding paper feed guide stay 38 toward the back of the device body in the Y direction.

[0052] In the first embodiment, the placement surface 33a of the transfer unit 33 is an inclined surface that gradually slopes downward toward the front side of the device body. The lowest part of the placement surface 33a is located below the support surface 31a of the paper feed guide groove 31, and the highest part of the placement surface 33a is located above the support surface 31a. In other words, the support surface 31a is located vertically between the lowest part of the placement surface 33a (the end on the front side of the device) and the highest part of the placement surface 33a (the end on the rear side of the device). With this configuration, when the paper feed guide unit 30 is moved to the storage position, the spindle 19 located on the support surface 31a of the paper feed guide groove 31 comes into contact with the transfer unit 33. Then, as the paper feed guide unit 30 continues to move toward the rear side of the device, the spindle 19 is transferred from the support surface 31a of the paper feed guide groove 31 to the placement surface 33a of the transfer unit 33. Thereafter, the spindle 19 continues to move toward the rear of the device together with the paper feed guide portion 30 while being supported by the placement surface 33a of the delivery portion 33 and the opposing surface 31b of the paper feed guide groove 31 facing the rear of the device.

[0053] When the paper feed guide unit 30 is in the protruding position, the assist lever 34 is lifted in the first rotation direction S1 around the lever rotation shaft 35 by the lever spring 39. At this time, the assist lever 34 is positioned above the paper feed guide contact portion 32 of the paper feed guide unit 30, and the assist lever 34 and the paper feed guide contact portion 32 do not overlap when viewed in the Y direction. Therefore, when the paper feed guide unit 30 moves from the protruding position to the retracted position, the paper feed guide contact portion 32 passes below the assist lever 34, which is in the second rotation position, and slides without coming into contact with the assist lever 34.

[0054] FIG. 13(c) shows the state in which the paper feed guide unit 30 (paper feed guide 30b) is located in the storage position and the spindle 19 is handed over to the spindle holder 24. When the paper feed guide unit 30 slides further toward the back of the device from the state shown in FIG. 13(b), the spindle 19 is handed over from the placement surface 33a of the transfer unit 33 to the U-shaped opening of the spindle holder 24. When the spindle 19 fits into the U-shaped opening of the spindle holder 24, the spindle 19 comes into contact with the lever contact portion 36, and the assist lever 34 rotates in the second rotation direction S2 about the lever rotation shaft 35 against the biasing force of the lever spring 39, moving to the first rotation position. Then, as the assist lever 34 moves to the first rotation position, the detected portion 37 moves away from the roll sensor 26, and the printing device 100 can detect that the spindle 19 has fitted into the spindle holder 24. When the spindle 19 rotates due to transportation or the like, the spindle 19 slides against the lever contact portion 36, and the lever contact portion 36 becomes a roller that can rotate around the X direction as a rotation axis. It may also include the following.

[0055] (Roll sheet removal operation) Next, the operation of removing the roll sheet R from the roll setting unit 200 will be described. Figures 14(a) to 14(d) are explanatory diagrams of the operation of removing the roll sheet R according to the first embodiment. Figure 15 is an explanatory diagram of the assist lever 34, showing the relationship between the distance from the lever rotation shaft 35 to the paper feed guide contact portion 32 and the distance from the lever contact portion 36 to the paper feed guide contact portion 32. Note that although the following explanation will describe the operation of removing the roll sheet R with reference to the paper feed guide 30b, the roll sheet R can also be removed in the same way from the paper feed guide 30a.

[0056] FIG. 14(a) shows a state in which the paper feed guide unit 30 (paper feed guide 30b) is located in the storage position (second position) and the roll sheet R is set in the roll setting unit 200. When the roll sheet R is set in the roll setting unit 200, the spindle 19 is fitted into the U-shaped opening of the spindle holder 24. At this time, when viewed in the Y direction, the paper feed guide contact portion 32 provided on the paper feed guide unit 30 is positioned so as to overlap with the assist lever 34, which is biased by the spindle 19 in the second rotation direction S2 and is located at the first rotation position. Also, at this time, the paper feed guide contact portion 32 is positioned toward the back of the device relative to the assist lever 34.

[0057] 14(b) shows the state in which the paper feed guide unit 30 (paper feed guide 30b) is in the process of moving from the stored position to the protruding position. To remove the roll sheet R, the operator first slides the paper feed guide stay 38 toward the front of the device in the Y direction, and then slides the paper feed guide unit 30. At this time, the paper feed guide contact portion 32 comes into contact with the assist lever 34 from the rear of the device, and the sliding force of the paper feed guide unit 30 generates a force that rotates the assist lever 34 in the first rotation direction S1.

[0058] When the assist lever 34 rotates in the first rotation direction S1, the lever contact portion 36 provided on the assist lever 34 abuts against the spindle 19. The lever contact portion 36 is a portion with a semicircular cross section extending in the X direction, and its curved surface abuts against the spindle 19 from below. The spindle 19 is then pushed by the assist lever 34 and moves upward, that is, lifted away from the spindle holder 24. At this time, the lever contact portion 36 may be configured to abut against a portion of the spindle 19 that is further toward the back of the device than the rotation center of the spindle 19, so that a pressing force may also be applied in a direction that moves the spindle 19 toward the front of the device. Thus, in the first embodiment, when the paper feed guide portion 30 is pulled toward the front of the device during the removal operation of the roll sheet R, the assist lever 34 rotates in the first rotation direction S1 in conjunction with the assist lever 34 and pushes upward the spindle 19 of the roll support member 2 that supports the roll sheet R. That is, the assist lever 34 functions as a rotating member that rotates to assist the operation of the spindle 19 to get over the boundary between the spindle holder 24 and the transfer section 33 .

[0059] FIG. 15 shows the assist lever 34, spindle holder 24, and spindle 19 when viewed in the X direction. FIG. 15 also shows the distance L1 from the center of the lever pivot shaft 35 (the pivot center of the assist lever 34) to the contact portion between the lever contact portion 36 and the assist lever 34, and the distance L2 from the center of the lever pivot shaft 35 to the contact portion between the paper feed guide contact portion 32 and the assist lever 34. In the first embodiment, the distance L2 is always greater than the distance L1, i.e., various components are arranged so that L2 > L1. That is, when the paper feed guide 30 is in the retracted position, the lever pivot shaft 35 is located farther from the lever contact portion 36 than the paper feed guide contact portion 32. Therefore, the force that the spindle 19 receives from the lever contact portion 36 is L2 / L1 times greater than the force that the paper feed guide contact portion 32 or the assist lever 34 receives. That is, with this configuration, when the paper feed guide 30 is slid, Even if the force is small, a large force can be transmitted to the lever contact portion 36 by utilizing the distance ratio. Then, the lever contact portion 36 contacts the spindle 19 from below and transmits a force that lifts the spindle 19 upward. This reduces the operating force required for the spindle 19 to overcome the U-shaped opening.

[0060] 14(c) shows a state in which the paper feed guide unit 30 is further pulled out toward the front of the device from the state in FIG. 14(b), and the assist lever 34 is further rotated in the first rotation direction S1. As the paper feed guide unit 30 is pulled out toward the front of the device, the spindle 19 is pushed from below by the assist lever 34 and also pushed from the rear of the device by the paper feed guide groove 31, causing the spindle 19 to completely come out of the spindle holder 24. The spindle 19 that has come out of the spindle holder 24 is supported by the placement surface 33a of the delivery unit 33 and the opposing surface 31b of the paper feed guide groove 31.

[0061] 14(c), when the spindle 19 is completely removed from the spindle holder 24, the detected part 37 moves to a position where it can be detected by the roll sensor 26 in accordance with the rotation of the assist lever 34. With this configuration, the roll sensor 26 can detect that the spindle 19 is not set in the roll setting part 200.

[0062] FIG. 14(d) shows a state in which the paper feed guide unit 30 (paper feed guide 30b) is in the protruding position and the spindle 19 is placed on the paper feed guide groove 31. When the paper feed guide unit 30 is further pulled out from the state shown in FIG. 14(c), the spindle 19 moves on the placement surface 33a and its height gradually decreases. Then, as the paper feed guide unit 30 moves to the protruding position, the spindle 19 is transferred from the placement surface 33a of the transfer unit 33 to the support surface 31a of the paper feed guide groove 31. Then, the paper feed guide unit 30 slides further toward the front of the device together with the spindle 19 and moves to the protruding position. When the paper feed guide unit 30 is in the protruding position, the operator can remove the roll support member 2 and the roll sheet R supported by the paper feed guide unit 30 with sufficient operating space secured.

[0063] As described above, in the first embodiment, the paper feed guide section 30 is configured to be movable between a protruding position and a retracted position, and the assist lever 34 rotates in conjunction with the movement of the paper feed guide section 30 to remove the spindle 19 from the spindle holder 24. Therefore, the spindle 19 can be removed from the spindle holder 24 with less force than when the spindle 19 is simply pulled toward the front of the device to remove it from the spindle holder 24. In other words, according to the first embodiment, the operator can remove the roll sheet R with less force, improving the operability of replacing the roll sheet R.

[0064] In the above description, the paper feed guide unit 30 and the assist lever 34 are provided in the roll setting unit 200, but the winding unit 600 may also be configured similarly. The winding unit 600 may also be configured to have a slidable paper feed guide unit 30 and an assist lever 34 that rotates in conjunction with the sliding movement of the paper feed guide unit 30, thereby improving the operability of replacing the roll sheet R after winding of the sheet. In other words, the assist lever 34 that assists in the removal operation of the roll sheet R can be provided on either the paper feed side or the winding side roll support unit. In other words, the above configuration can also be applied to roll support devices such as a sheet supply device or a sheet winding device equivalent to the roll setting unit 200 of the printing apparatus 100.

[0065] Second Embodiment Next, a second embodiment of the present invention will be described with reference to Figs. 16 to 19. The second embodiment differs from the first embodiment in the configuration of the roll setting unit 200. Only the differences between the configuration of the second embodiment and the configuration of the first embodiment will be described below. The same reference numerals will be used to designate the same components in the second embodiment as those in the first embodiment, and their description will be omitted. do.

[0066] First, a roll setting unit 200 according to the second embodiment will be described. The roll setting unit 200 according to the second embodiment differs from the first embodiment in that it includes a locking mechanism for the spindle 19, which is composed of a locking lever 40, a spindle lock 45, and a spring 48. Figures 16(a) and 16(b) are explanatory views of the locking mechanism for the spindle 19 according to the second embodiment, showing the locking lever 40, the spindle lock 45, and the spring 48. Figures 17(a) and 17(b) are perspective views showing the non-reference side end of the roll setting unit 200 according to the second embodiment.

[0067] The lock lever 40 and spindle lock 45 are provided at the non-reference side end of the roll setting unit 200. The lock lever 40 has a lock lever pivot shaft 41, a lock portion 42, a lock lever contact portion 43, and a knob portion 44. The spindle lock 45 has a lock pivot shaft 46 and a lock contact portion 47 and is biased in a third pivot direction S3 by a spring 48, which is a biasing member. The spindle lock 45 is configured to be rotatable in a third pivot direction S3 and a fourth pivot direction S4 around the lock pivot shaft 46 extending parallel to the X-axis direction, and is an abutting member that prevents tooth jumping between the spindle gear 23 and the drive gear 25 on the roll setting unit 200 side. The lock lever 40 is configured to be rotatable in a fifth pivot direction S5 and a sixth pivot direction S6 around the lock lever pivot shaft 41 extending in the X-axis direction, and is a locking member that locks the spindle lock 45.

[0068] The spindle lock 45 is configured to be rotatable (movable) between an abutment position where it abuts against the spindle 19 supported by the spindle holder 24, and a spaced position where it is spaced apart from the spindle 19. The lock lever 40 is configured to be rotatable (movable) between a locked position (fixed position) and an unlocked position. When the lock lever 40 is located at the locked position, it contacts the spindle lock 45 located at the abutment position from above, locking the position of the spindle lock 45. When the lock lever 40 is located at the unlocked position, it allows the spindle lock 45 to move from the abutment position to the spaced position.

[0069] Figure 16(a) shows the lock lever 40 in the unlocked position and the spindle lock 45 in the separated position. Figure 16(b) shows the lock lever 40 in the locked position and the spindle lock 45 in the abutting position. When the paper feed guide unit 30 is in the extended position, the lock lever 40 is in the unlocked position and the spindle lock 45 is in the separated position. Figure 17(a) shows the roll setting unit 200 with the paper feed guide unit 30 in the extended position, and Figure 17(b) shows the roll setting unit 200 with the paper feed guide unit 30 in the stored position.

[0070] The lock lever 40 and the spindle lock 45 are arranged so that they can come into contact with each other. The lock lever 40 contacts the spindle lock 45 at a lock portion 42 provided below it. The lock portion 42 includes a first contact portion 42a having a surface facing the rear of the device when the lock lever 40 is in the unlocked position, and a second contact portion 42b having a surface facing the front of the device when the lock lever 40 is in the locked position. The lock portion 42 is configured so that the portion that comes into contact with the spindle lock 45 changes depending on the position (posture) of the spindle lock 45.

[0071] The abutment state between the lock lever 40 and the spindle lock 45 will be described in more detail. When the spindle lock 45 is in the separated position and the lock lever 40 is in the unlocked position, the first contact portion 42a contacts the spindle lock 45. The first contact portion 42a receives a force in the direction of arrow Q1 from the spindle lock 45 which is trying to rotate in the third rotation direction S3 due to the spring 48, and the lock lever 40 receives a force in the direction of rotation in the fifth rotation direction S5. When the spindle lock 45 is in the abutment position and the lock lever 40 is in the unlocked position, the first contact portion 42a contacts the spindle lock 45. The first contact portion 42a receives a force in the direction of arrow Q1 from the spindle lock 45 which is trying to rotate in the third rotation direction S3 due to the spring 48, and the lock lever 40 receives a force in the direction of rotation in the fifth rotation direction S5. When the lock lever 40 is in the "+" position, the second contact portion 42b comes into contact with the spindle lock 45. The second contact portion 42b receives a force in the direction of arrow Q2 from the spindle lock 45, which is attempting to rotate in the third rotation direction S3 due to the spring 48, and the lock lever 40 receives a force in the sixth rotation direction S6. The arrow Q1 is a direction toward the front and upward of the device, and the arrow Q2 is a direction toward the back and upward of the device. In this way, the lock portion 42 and the spindle lock 45 are configured so that the direction of the force that the lock lever 40 receives from the spindle lock 45 changes depending on the position (posture) of the spindle lock 45.

[0072] Furthermore, an inverted L-shaped portion 49 is provided at the end of the paper feed guide 30b according to the second embodiment on the rear side of the device. The inverted L-shaped portion 49 is configured in an inverted L shape with a long side portion 49a and a short side portion 49b, and is an abutment portion that abuts against a lock lever contact portion 43 (described later). The long side portion 49a of the inverted L-shaped portion 49 is disposed to extend in the Z direction and extends upward relative to the delivery portion 33. The short side portion 49b of the inverted L-shaped portion 49 extends from the upper end of the long side portion 49a toward the front side of the device and is formed to extend in a direction approximately perpendicular to the long side portion 49a. An inclined portion 49c that slopes downward toward the front side of the device is formed at the end of the short side portion 49b on the front side of the device.

[0073] As described above, the lock lever 40 is provided with the lock lever contact portion 43. The lock lever contact portion 43 is a cylindrical protrusion that extends in the X direction toward the reference side of the roll setting unit 200, and is a contact portion that contacts the inverted L-shaped portion 49 as the paper feed guide unit 30 moves toward the front of the device. In the X direction, the lock lever contact portion 43 is located at the same position as the inverted L-shaped portion 49 provided on the paper feed guide 30b.

[0074] The position of the lock lever contact portion 43 in the Z direction changes as the lock lever 40 rotates between the locked position and the unlocked position. When the lock lever 40 is in the unlocked position, the lock lever contact portion 43 is located higher than the inverted L-shaped portion 49, and the lock lever contact portion 43 does not interfere with the inverted L-shaped portion 49 even when the paper feed guide unit 30 moves in the Y direction. When the lock lever 40 is in the locked position, the lock lever contact portion 43 is located in the same position as the inverted L-shaped portion 49 in the Z direction, and the lock lever contact portion 43 and the inverted L-shaped portion 49 are positioned so that they overlap when viewed in the Y direction. Therefore, as the paper feed guide unit 30 moves from the stored position to the extended position, the inverted L-shaped portion 49, which serves as the contact portion, comes into contact with the lock lever contact portion 43, which serves as the contacted portion.

[0075] (Roll sheet installation operation) Next, the operation of the locking mechanism of the spindle 19 accompanying the operation of attaching the rolled sheet R to the roll setting unit 200 will be described. Figures 18(a) to 18(c) are explanatory views of the attaching operation of the rolled sheet R according to the second embodiment. Note that, in the attaching operation and removing operation of the rolled sheet R, the operation of the assist lever 34 in the second embodiment is the same as in the first embodiment, so detailed description will be omitted.

[0076] FIG. 18(a) shows a state in which the paper feed guide section 30 (paper feed guide 30b) is in the protruding position and the spindle 19 is placed on the paper feed guide groove 31. At this time, the spindle lock 45 is biased in the third rotation direction S3 by the spring 48, and is in the unlocked position in which the end on the front side of the device is raised. Also, when the spindle lock 45 is in the separated position, the lock lever 40 is pushed by the spindle lock 45 so as to rotate in the fifth rotation direction S5, and is in the unlocked position. At this time, the force of the spindle lock 45 biased in the third rotation direction S3 to press the lock lever 40 is in the direction of arrow Q1. The direction of arrow Q1 is the direction in which the lock lever 40 rotates in the fifth rotation direction S5.

[0077] FIG. 18(b) shows a state in which the paper feed guide portion 30 (paper feed guide 30b) is in the storage position, the lock lever 40 is in the unlock position, and the spindle lock 45 is in the separated position. As in the first embodiment, in the second embodiment, when the paper feed guide unit 30 moves to the storage position at the rear of the device, the spindle 19 is transferred from the paper feed guide groove 31 of the paper feed guide unit 30 to the spindle holder 24 and the lever contact portion 36 of the assist lever 34. The spindle 19 is then fitted into the U-shaped opening of the spindle holder 24, thereby setting the roll sheet R. As the paper feed guide unit 30 moves from the protruding position to the storage position, the inverted L-shaped portion 49 passes below the lock lever contact portion 43 and does not interfere with the lock lever contact portion 43.

[0078] 18(c) shows a state in which the paper feed guide unit 30 (paper feed guide 30b) is in the storage position, and the lock lever 40 and spindle lock 45 are in their locked positions. After moving the paper feed guide unit 30 to the storage position, the user tilts and rotates the lock lever 40 in the sixth rotation direction S6 to lock the spindle 19 with the spindle lock 45 and make the printing device 100 ready for printing. When rotating the lock lever 40, the user can operate the lock lever 40 by grasping the knob 44 that protrudes toward the front of the device.

[0079] When the lock lever 40 is rotated in the sixth rotation direction S6 to the locked position, the spindle lock 45, which is in contact with the lock lever 40, is pushed by the lock lever 40 and rotates in the fourth rotation direction S4 to the abutting position. Thus, the lock mechanism for the spindle 19 is configured so that the spindle lock 45 rotates in the fourth rotation direction S4 in conjunction with the rotation of the lock lever 40 in the sixth rotation direction S6. When the lock lever 40 moves to the locked position and the spindle lock 45 moves to the abutting position, the force of the spindle lock 45, which is biased by the spring 48 in the third rotation direction S3, pressing the lock lever 40, changes from the direction of arrow Q1 to the direction of arrow Q2. The direction of arrow Q2 is the direction that rotates the lock lever 40 in the sixth rotation direction S6. The lock lever 40, attempting to rotate in the sixth rotation direction S6, presses the spindle lock 45 so that the spindle lock 45 rotates in the fourth rotation direction S4. Therefore, when all of the lock levers 40 are in the lock position and the spindle lock 45 is in the abutment position, the spindle lock 45 is locked by the lock lever 40 and does not rotate in the third rotation direction S3 even when biased by the spring 48.

[0080] By performing the above-described operation of attaching the roll sheet R, the lock contact portion 47 of the spindle lock 45, which is in the locked position, comes into contact from above with the spindle 19 set in the spindle holder 24. This configuration can prevent the spindle gear 23 and the drive gear 25 on the roll setting unit 200 side from skipping teeth due to the influence of the sheet 1 supply operation.

[0081] (Roll sheet removal operation) Next, a description will be given of the operation of removing the rolled sheet R from the roll setting unit 200. Figures 19(a) to 19(c) are explanatory diagrams of the operation of removing the rolled sheet R according to the second embodiment.

[0082] 19(a) shows a state in which the paper feed guide unit 30 (paper feed guide 30b) is in the storage position, the lock lever 40 is in the lock position, the spindle lock 45 is in the abutting position, and the roll sheet R is set in the roll setting unit 200. When the roll sheet R is set in the roll setting unit 200, the orientation of the spindle lock 45 is limited to the lock position shown in FIG. 19(a) by the lock portion 42 of the lock lever 40.

[0083] 19(b) shows the state in which the paper feed guide unit 30 (paper feed guide 30b) is in the process of moving from the stored position to the protruding position. To remove the roll sheet R, the operator first slides the paper feed guide stay 38 toward the front of the device in the Y direction, and then slides the paper feed guide unit 30. At this time, the inverted L-shaped portion 49 provided on the paper feed guide portion 30 comes into contact with the lock lever contact portion 43 of the lock lever 40 located at the locked position. The lock lever 40 is then pushed by the inverted L-shaped portion 49 to rotate in the fifth rotation direction S5, moving from the locked position toward the unlocked position. At this time, the lock lever contact portion 43 comes into contact with the inclined portion 49c of the inverted L-shaped portion 49, and is pushed upward in addition to the force toward the front of the device. In this way, the inclined portion 49c at the tip end on the front side of the inverted L-shaped portion 49 is provided to more reliably rotate the lock lever 40 in the fifth rotation direction S5.

[0084] When the lock lever 40 rotates in the fifth rotation direction S5 so that the tip of the lock lever 40 on the front side of the device is lifted, the lock on the spindle lock 45 by the lock lever 40 is released. Furthermore, as the posture of the lock lever 40 changes, the position of the contact point of the lock lever 40 with the spindle lock 45 changes, and the direction in which the lock lever 40 is pushed by the spindle lock 45 changes from the direction of arrow Q2 to the direction of arrow Q1. As a result, the spindle lock 45 receives a force from the spring 48 in the third rotation direction S3, which rotates the lock lever 40 in the fifth rotation direction S5 so as to lift it, moving it to the unlocked position. With this configuration, the operator does not need to operate the lock lever 40; simply by pulling the paper feed guide unit 30 toward himself, the operator can release the locked state of the spindle lock 45 and easily remove the roll sheet R.

[0085] 19(c) shows a state in which the paper feed guide unit 30 (paper feed guide 30b) is in the process of moving from the stored position to the protruding position, the lock lever 40 is in the unlocked position, and the spindle lock 45 is in the separated position. In the state shown in FIG. 19(c), the spindle 19 is placed on the delivery unit 33.

[0086] In the second embodiment, similarly to the first embodiment, the spindle 19 is removed from the spindle holder 24 and transferred from the transfer portion 33 to the paper feed guide groove 31 in conjunction with the operation of pulling the paper feed guide portion 30 toward the front of the main body device in the Y direction. Furthermore, in the second embodiment, the inverted L-shaped portion 49 lifts the lock lever 40 in conjunction with this operation. After that, the lock lever 40, which has changed its position, is pushed by the spindle lock 45 and rotates toward the unlocked position, and the spindle lock 45 rotates to the separated position. In other words, with this configuration, the number of steps required for the operator to release the lock lever 40 and spindle lock 45 is reduced, thereby improving the operability of the operation of removing the roll sheet R.

[0087] Third Embodiment Next, a third embodiment of the present invention will be described with reference to Figures 20 to 23. The third embodiment differs from the first embodiment in the configuration of the paper feed guide section 30. Only the differences between the configuration of the third embodiment and the configuration of the first embodiment will be described below. In the configuration of the third embodiment, the same components as those in the first embodiment will be assigned the same reference numerals, and descriptions thereof will be omitted.

[0088] The configuration of the roll setting unit 200 according to the third embodiment will be described. Fig. 20 is a perspective view showing the reference-side paper feed guide 30a. As shown in Fig. 20, a paper feed guide follower 61 that protrudes toward the reference-side transfer unit 33 is provided on the side surface of the reference-side paper feed guide 30a. Furthermore, a reference-side biasing roller 62 that protrudes toward the paper feed guide 30a is provided on the side surface of the reference-side transfer unit 33 that faces the paper feed guide 30a. The biasing roller 62 is provided on the front side of the transfer unit 33, at the same position in the Z direction as the paper feed guide follower 61, and is rotatable about a rotation axis that extends in the Z direction.

[0089] 21 is a perspective view showing the non-reference side paper feed guide 30b. As shown in FIG. 21, the non-reference side paper feed guide 30b has a protruding portion on the side thereof that protrudes toward the non-reference side transfer portion 33. A paper feed guide follower 63 is provided on the non-reference side of the transfer section 33, protruding toward the paper feed guide 30b. A non-reference side biasing roller 64 is provided on the side of the non-reference side of the transfer section 33 facing the paper feed guide 30b. The biasing roller 64 is provided on the front side of the transfer section 33, at the same position as the paper feed guide follower 63 in the Z direction, and is rotatable about a rotation axis extending in the Z-axis direction. The protruding directions of the paper feed guide follower 61 and the paper feed guide follower 63 are parallel to the X direction and are opposite to each other.

[0090] Next, the biasing mechanism of the reference-side paper feed guide 30a will be described. Figures 22(a) to 22(c) are explanatory diagrams of the biasing mechanism of the reference-side paper feed guide 30a, and are diagrams that schematically show the configuration of the biasing mechanism with unnecessary components omitted. When viewed from above, the paper feed guide follower 61 has a mountain shape that convex toward the reference-side transfer section 33. It includes a slope 61a (first slope) on the front side of the device, a slope 61b (second slope) on the back side of the device, and a connection surface 61c that connects the slope 61a and the slope 61b. The slope 61a is configured so that the amount of protrusion gradually increases (approaching the reference-side transfer section 33) from the front side to the back side of the device. On the other hand, the slope 61b is configured so that the amount of protrusion gradually decreases (moving away from the reference-side transfer section 33) from the front side to the back side of the device. The connection surface 61c is a surface that extends parallel to the Y direction.

[0091] The biasing mechanism for the reference-side paper feed guide 30a includes a biasing roller 62, a biasing roller holding member 65 that rotatably holds the biasing roller 62, and a biasing spring 66 that biases the biasing roller holding member 65 toward the paper feed guide 30a. The biasing roller 62 is a rotating member that rotates in contact with the paper feed guide follower 61. The biasing roller holding member 65 is configured to be movable in the X direction together with the biasing roller 62. The transfer section 33 is formed with a notch 71 that opens toward the front side of the device and toward the paper feed guide 30a. At least a portion of the biasing roller 62 and the biasing roller holding member 65 is disposed inside the notch 71. The biasing spring 66 is also provided inside the transfer section 33.

[0092] FIG. 22(a) shows the state in which the paper feed guide unit 30 is located in the storage position (second position) stored in the device body. When the paper feed guide unit 30 is located in the storage position, the biasing roller 62 contacts the inclined surface 61a of the paper feed guide follower 61. At this time, the biasing force of the biasing spring 66 causes the biasing roller 62, held by the biasing roller holding member 65, to press the inclined surface 61a. A force V1, with which the biasing roller 62 presses the inclined surface 61a, acts in a direction perpendicular to the inclined surface 61a. A force W1, which is a component of the force V1, acts as a force to push the paper feed guide 30a toward the back of the device. When the paper feed guide unit 30 is located in the storage position, the biasing spring 66 expands, causing the biasing roller 62 to protrude toward the paper feed guide 30a.

[0093] Due to the above-described biasing mechanism, when the paper feed guide 30a is located at or near the storage position, it is biased toward the rear of the device by the biasing roller 62. With this configuration, the paper feed guide 30a can be moved to the storage position without the operator having to push the paper feed guide 30a all the way to the rear, and unintentional movement of the paper feed guide 30a from the storage position to the protruding position can be prevented.

[0094] 22(b) shows the state in which the paper feed guide section 30 is positioned between the retracted position and the extended position, with the biasing roller 62 contacting the connection surface 61c of the paper feed guide follower 61. At this time, the biasing force of the biasing spring 66 causes the biasing roller 62 held by the biasing roller holding member 65 to press against the connection surface 61c. The force V2 with which the biasing roller 62 presses against the connection surface 61c acts in a direction perpendicular to the connection surface 61c and parallel to the X direction. Therefore, the force with which the biasing roller 62 presses against the connection surface 61c has almost no effect on the movement of the paper feed guide 30a in the Y direction. Furthermore, when the biasing roller 62 contacts the connection surface 61c, the biasing spring 66 compresses, and the biasing roller 62 retracts into the delivery section 33.

[0095] FIG. 22(c) shows the state in which the paper feed guide unit 30 is in the protruding position (first position) protruding from the device body toward the front. When the paper feed guide unit 30 is in the protruding position, the biasing roller 62 contacts the connecting surface 61c of the paper feed guide follower 61. At this time, the biasing force of the biasing spring 66 causes the biasing roller 62, held by the biasing roller holding member 65, to press the connecting surface 61c. A force V3, with which the biasing roller 62 presses the connecting surface 61c, acts in a direction perpendicular to the connecting surface 61c. A component force W3 of the force V3 acts as a force to push the paper feed guide 30a toward the front of the device. When the paper feed guide unit 30 is in the protruding position, the biasing spring 66 expands, and the biasing roller 62 protrudes toward the paper feed guide 30a, just as when the paper feed guide unit 30 is in the retracted position.

[0096] When the paper feed guide 30a is located at or near the protruding position, the above-described biasing mechanism biases the paper feed guide 30a toward the front of the device by the biasing roller 62. This configuration allows the paper feed guide 30a to move to the protruding position without the operator having to pull the paper feed guide 30a all the way out, and also prevents the paper feed guide 30a from unintentionally moving from the protruding position to the retracted position.

[0097] Next, the biasing mechanism of the non-reference side paper feed guide 30b will be described. Figures 23(a) to 23(c) are explanatory diagrams of the biasing mechanism of the non-reference side paper feed guide 30b, and are diagrams that schematically show the configuration of the biasing mechanism with unnecessary components omitted. When viewed from above, the paper feed guide follower 63 has a mountain shape that convex toward the non-reference side transfer section 33. It has a slope 63a on the front side of the device, a slope 63b on the back side of the device, and a connecting surface 63c that connects the slope 63a and the slope 63b. The slope 63a is configured so that the amount of protrusion gradually increases (approaching the non-reference side transfer section 33) as it moves from the front side to the back side of the device. On the other hand, the slope 63b is configured so that the amount of protrusion gradually decreases (moving away from the non-reference side transfer section 33) as it moves from the front side to the back side of the device. The connecting surface 63c is a surface that extends parallel to the Y direction.

[0098] The biasing mechanism for the non-reference side paper feed guide 30b includes a biasing roller 64, a biasing roller holding member 67 that rotatably holds the biasing roller 64, and a biasing spring 68 that biases the biasing roller holding member 67 toward the paper feed guide 30b. The biasing roller 64 is a rotating member that rotates in contact with the paper feed guide follower 63. The biasing roller holding member 67 is configured to be movable in the X direction together with the biasing roller 64. The transfer section 33 is formed with a notch 72 that opens toward the front side of the device and toward the paper feed guide 30b. At least a portion of the biasing roller 64 and the biasing roller holding member 67 are disposed within the notch 72. The biasing spring 68 is also provided inside the transfer section 33.

[0099] FIG. 23(a) shows the state in which the paper feed guide unit 30 is located in the storage position (second position) stored in the device body. When the paper feed guide unit 30 is located in the storage position, the biasing roller 64 contacts the inclined surface 63a of the paper feed guide follower 63. At this time, the biasing force of the biasing spring 68 causes the biasing roller 64, held by the biasing roller holding member 67, to press the inclined surface 63a. A force V4, with which the biasing roller 64 presses the inclined surface 63a, acts in a direction perpendicular to the inclined surface 63a. A force W4, which is a component of the force V4, acts as a force to push the paper feed guide 30b toward the back of the device. Furthermore, when the paper feed guide unit 30 is located in the storage position, the biasing spring 68 expands, and the biasing roller 64 protrudes toward the paper feed guide 30b.

[0100] By the above-mentioned biasing mechanism, when the paper feed guide 30b is located at or near the storage position, it is biased toward the rear of the device by the biasing roller 64. With this configuration, the paper feed guide 30b can be moved to the storage position without the operator having to push the paper feed guide 30b all the way to the rear, and the paper feed guide 30b is prevented from unintentionally moving from the storage position to the protruding position. It can be stopped.

[0101] 22(b) shows the state in which the paper feed guide unit 30 is positioned between the retracted position and the extended position, with the biasing roller 64 contacting the connection surface 63c of the paper feed guide follower 63. At this time, the biasing force of the biasing spring 68 causes the biasing roller 64, held by the biasing roller holding member 67, to press against the connection surface 63c. The force V5 with which the biasing roller 64 presses against the connection surface 63c acts perpendicular to the connection surface 63c and parallel to the X direction. Therefore, the force with which the biasing roller 64 presses against the connection surface 63c has almost no effect on the movement of the paper feed guide 30b in the Y direction. Furthermore, when the biasing roller 64 contacts the connection surface 63c, the biasing spring 68 compresses, and the biasing roller 64 retracts into the transfer unit 33.

[0102] FIG. 22(c) shows the state in which the paper feed guide 30 is in the protruding position (first position) protruding from the device body toward the front. When the paper feed guide 30 is in the protruding position, the biasing roller 64 contacts the connecting surface 63c of the paper feed guide follower 63. At this time, the biasing force of the biasing spring 68 causes the biasing roller 64, held by the biasing roller holding member 67, to press the connecting surface 63c. A force V6, with which the biasing roller 64 presses the connecting surface 63c, acts in a direction perpendicular to the connecting surface 63c. A component force W6 of the force V6 acts as a force to push the paper feed guide 30b toward the front of the device. When the paper feed guide 30 is in the protruding position, the biasing spring 68 is most extended, and the biasing roller 64 protrudes toward the paper feed guide 30b, just as when the paper feed guide 30 is in the retracted position.

[0103] When the paper feed guide 30b is located at or near the protruding position, the above-described biasing mechanism biases the paper feed guide 30b toward the front of the device by the biasing roller 64. This configuration allows the paper feed guide 30b to move to the protruding position without the operator having to pull the paper feed guide 30b all the way out, and also prevents the paper feed guide 30b from unintentionally moving from the protruding position to the retracted position.

[0104] The disclosure of this embodiment includes the following configuration. (Configuration 1) A roll support device that rotates a roll sheet around which a sheet is wound to supply or take up the sheet, a holder portion that rotatably supports the rolled sheet via a mounting member attached to the rolled sheet and that is open upward in a first direction that intersects with an axial direction of the held rolled sheet and in a vertical direction; a guide portion that is movable in the first direction and a second direction opposite to the first direction and that guides the rolled sheet in the second direction toward the holder portion; a rotating member that is rotatable about a rotation axis that extends parallel to the axial direction and is arranged so that the mounting member supported by the holder portion is positioned on the rotation locus; Equipped with A roll support device characterized in that the rotating member rotates in a direction pushing the mounting member supported by the holder portion from below upward in conjunction with the movement of the guide portion in the first direction. (Configuration 2) the mounting members are attached to the roll sheet so as to protrude from both ends of the roll sheet in the axial direction, the holder portion includes a first holder that supports a first end of the mounting member in the axial direction, and a second holder that supports a second end of the mounting member opposite the first end in the axial direction, The roll according to configuration 1, wherein the guide portion includes a first guide that supports the first end of the mounting member and a second guide that supports the second end of the mounting member. Support device. (Configuration 3) 3. The roll support device according to claim 2, wherein the rotating member is disposed between the first holder and the first guide in the axial direction. (Configuration 4) The roll support device described in configuration 3 is characterized in that, if the rotating member is a first rotating member, it is provided with a second rotating member that is rotatable around a rotation axis extending parallel to the axial direction and is arranged between the second holder and the second guide in the axial direction so that the mounting member supported by the holder portion is positioned on its rotation trajectory. (Configuration 5) a transfer portion connected to an inner surface of the holder portion and having a slope that gradually slopes downward as it extends in the first direction; A roll support device described in any one of configurations 1 to 4, characterized in that a support surface that supports the mounting member of the guide section from below is located between the bottom and top of the inclined surface in the vertical direction. (Configuration 6) The roll support device described in configuration 5, characterized in that the guide portion has a guide groove formed by the support surface, a surface extending upward from the end of the support surface in the first direction, and a surface extending upward from the end of the support surface in the second direction. (Configuration 7) the guide portion is configured to be movable between a first position protruding from a device body of the roll support device in the first direction and a second position accommodated inside the device body, The roll support device according to any one of configurations 1 to 6, characterized in that the rotating member is configured to be rotatable between a first rotation position in which it abuts the mounting member supported by the holder portion from below, and a second rotation position in which it rotates from the first position in a direction to lift the mounting member supported by the holder portion. (Configuration 8) 8. The roll support device according to claim 7, further comprising a biasing member that biases the rotating member in a direction to rotate it from the first rotation position to the second rotation position. (Configuration 9) the guide portion has a protrusion extending parallel to the axial direction, and is arranged at a position that overlaps with the rotating member located at the first rotation position and does not overlap with the rotating member located at the second rotation position when viewed in the second direction, 9. The roll support device according to configuration 7 or 8, wherein when the guide portion is located at the second position, the protrusion is located on the second direction side with respect to the rotating member. (Configuration 10) The roll support device described in configuration 9, characterized in that when viewed in the axial direction, the distance from the rotation center of the rotating member to the contact point between the rotating member and the protrusion is greater than the distance from the rotation center to the contact point between the rotating member and the mounting member. (Configuration 11) a sensor capable of detecting the rotating member positioned at the second rotation position; 11. The roll support device according to any one of configurations 7 to 10, wherein when the sensor detects the rotating member, it is determined that a roll sheet is not set in the holder portion. (Configuration 12) A roll support device described in any one of configurations 1 to 11, characterized in that the rotating member is a roller that can rotate around the axial direction as a rotation axis and has a roller that contacts the mounting member supported by the holder portion. (Configuration 13) a contact position at which the mounting member supported by the holder portion comes into contact from above; and a contact member that is rotatable between a position spaced apart from the mounting member supported by the mounting portion, A roll support device described in any one of configurations 1 to 12, characterized in that the abutment member rotates from the abutment position to the separation position in conjunction with the movement of the guide portion in the first direction. (Configuration 14) a locking member that is rotatable between a locking position where the locking member is in contact with the contacting member from above and locks the position of the contacting member, and an unlocking position where the locking member is allowed to move from the contacting position to the separated position; a biasing member that biases the contact member in a direction to rotate the contact member from the contact position to the separated position; Equipped with 14. The roll support device according to claim 13, wherein the locking member moves from the locking position to the unlocking position in conjunction with movement of the guide portion in the first direction. (Configuration 15) The guide portion has a contact portion, the locking member has an abutment portion extending parallel to the axial direction, the abutment portion overlapping with the abutment portion when positioned at the locked position and disposed at a position not overlapping with the abutment portion when positioned at the unlocked position, when viewed in the second direction; The roll support device described in configuration 14, characterized in that in conjunction with the movement of the guide portion in the first direction, the abutting portion abuts the abutted portion and the locking member moves from the locked position to the unlocked position. (Configuration 16) The roll support device according to configuration 7, further comprising a biasing mechanism that biases the guide portion located at the first position in the first direction and biases the guide portion located at the second position in the second direction. (Configuration 17) the guide portion has a protruding portion having a mountain shape that is convex in the axial direction, the protruding portion including a first inclined surface whose protruding amount gradually increases as it goes toward the second direction, and a second inclined surface whose protruding amount gradually decreases as it goes toward the second direction, the biasing mechanism includes a rotating member that is in contact with the protruding portion and rotates in response to the rotation, a holding member that rotatably holds the rotating member, and a biasing member that biases the holding member in the axial direction toward the protruding portion, The roll support device of claim 16, wherein the rotating member abuts the second inclined surface when the guide portion is located at the first position, and abuts the first inclined surface when the guide portion is located at the second position. (Configuration 18) The roll support device described in configuration 17, characterized in that the protrusion includes a connection surface that connects the first inclined surface and the second inclined surface and extends parallel to the first direction. (Configuration 19) A roll support device according to any one of configurations 1 to 18; a recording unit that records an image on the sheet fed from the roll support device; A recording device comprising: (Configuration 20) a recording unit that records an image on a sheet; A roll support device according to any one of configurations 1 to 18, which winds up a sheet on which an image is recorded; A recording device comprising: [Explanation of symbols]

[0105] R... roll sheet, 1... sheet, 2... roll support member (mounting member), 24... spindle holder (holder portion), 30... paper feed guide (guide portion), 34... assist lever (rotating member)

Claims

1. A roll support device that rotates a roll sheet around which a sheet is wound to supply or take up the sheet, a holder portion that rotatably supports the rolled sheet via a mounting member attached to the rolled sheet and that is open upward in a first direction that intersects with an axial direction of the supported rolled sheet and in a vertical direction; a guide portion that is movable in the first direction and a second direction opposite to the first direction, and that supports the roll sheet and guides it in the second direction toward the holder portion; a rotating member that is rotatable about a rotation axis that extends parallel to the axial direction and is arranged so that the mounting member supported by the holder portion is positioned on the rotation locus; Equipped with The roll support device is characterized in that the rotating member rotates in a direction pushing the mounting member supported by the holder portion from below upward in conjunction with the movement of the guide portion in the first direction.

2. the mounting members are attached to the roll sheet so as to protrude from both ends of the roll sheet in the axial direction, the holder portion includes a first holder that supports a first end of the mounting member in the axial direction, and a second holder that supports a second end of the mounting member opposite the first end in the axial direction, The roll support device according to claim 1 , wherein the guide portion includes a first guide that supports the first end of the mounting member and a second guide that supports the second end of the mounting member.

3. 3. The roll support device according to claim 2, wherein the rotating member is disposed between the first holder and the first guide in the axial direction.

4. The roll support device according to claim 3, further comprising a second rotating member arranged between the second holder and the second guide in the axial direction so that the rotating member is rotatable around a rotation axis extending parallel to the axial direction and the mounting member supported by the holder portion is positioned on the rotation trajectory, assuming that the rotating member is a first rotating member.

5. a transfer portion connected to an inner surface of the holder portion and having a slope formed thereon that gradually slopes downward as it extends in the first direction; 2. The roll support device according to claim 1, wherein a support surface of the guide portion that supports the mounting member from below is located between the bottom and top of the inclined surface in the vertical direction.

6. The roll support device according to claim 5, characterized in that the guide portion has a guide groove formed by the support surface, a surface extending upward from the end of the support surface in the first direction, and a surface extending upward from the end of the support surface in the second direction.

7. the guide portion is configured to be movable between a first position protruding from a device body of the roll support device in the first direction and a second position accommodated inside the device body, The roll support device according to claim 1, characterized in that the rotating member is configured to be rotatable between a first rotation position in which it abuts the mounting member supported by the holder portion from below, and a second rotation position in which it rotates from the first position in a direction to lift the mounting member supported by the holder portion.

8. The rotating member is biased in a direction to rotate from the first rotating position to the second rotating position.

8. The roll support device according to claim 7, further comprising a biasing member.

9. the guide portion has a protrusion extending parallel to the axial direction, and is arranged at a position that overlaps with the rotating member located at the first rotation position and does not overlap with the rotating member located at the second rotation position when viewed in the second direction, The roll support device according to claim 7, wherein when the guide portion is located at the second position, the protrusion is located on the second direction side with respect to the rotating member.

10. The roll support device according to claim 9, characterized in that, when viewed in the axial direction, the distance from the rotation center of the rotating member to the contact point between the rotating member and the protrusion is greater than the distance from the rotation center to the contact point between the rotating member and the mounting member.

11. a sensor capable of detecting the rotating member positioned at the second rotation position; 8. The roll support device according to claim 7, wherein when the sensor detects the rotating member, it is determined that a roll sheet is not set in the holder portion.

12. 2. The roll support device according to claim 1, wherein the rotating member is a roller that is rotatable about the axial direction as a rotation axis, and has a roller that comes into contact with the mounting member supported by the holder portion.

13. a contact member that is rotatable between an abutment position where the contact member contacts the mounting member supported by the holder portion from above and a spaced position where the contact member is spaced from the mounting member supported by the holder portion, The roll support device according to claim 1 , wherein the contact member rotates from the contact position to the separated position in conjunction with the movement of the guide portion in the first direction.

14. a locking member that is rotatable between a locking position where the locking member is in contact with the contacting member from above and locks the position of the contacting member, and an unlocking position where the locking member is allowed to move from the contacting position to the separated position; a biasing member that biases the contact member in a direction to rotate the contact member from the contact position to the separated position; Equipped with The roll support device according to claim 13, wherein the locking member moves from the locking position to the unlocking position in conjunction with the movement of the guide portion in the first direction.

15. The guide portion has a contact portion, the locking member has an abutment portion extending parallel to the axial direction, the abutment portion overlapping with the abutment portion when positioned at the locked position and disposed at a position not overlapping with the abutment portion when positioned at the unlocked position, when viewed in the second direction; The roll support device according to claim 14, characterized in that, in conjunction with the movement of the guide portion in the first direction, the abutting portion abuts the abutted portion, and the locking member moves from the locked position to the unlocked position.

16. The roll support device according to claim 7, further comprising a biasing mechanism that biases the guide portion located at the first position in the first direction and biases the guide portion located at the second position in the second direction.

17. the guide portion has a protruding portion having a mountain shape that is convex in the axial direction, the protruding portion including a first inclined surface whose protruding amount gradually increases as it goes toward the second direction, and a second inclined surface whose protruding amount gradually decreases as it goes toward the second direction, the biasing mechanism includes a rotating member that is in contact with the protruding portion and rotates in response to the rotation, a holding member that rotatably holds the rotating member, and a biasing member that biases the holding member in the axial direction toward the protruding portion, 17. The roll support device according to claim 16, wherein the rotating member abuts against the second inclined surface when the guide portion is located at the first position, and abuts against the first inclined surface when the guide portion is located at the second position.

18. The roll support device according to claim 17, wherein the protrusion includes a connection surface that connects the first inclined surface and the second inclined surface and that extends parallel to the first direction.

19. A roll support device according to any one of claims 1 to 18; a recording unit that records an image on the sheet fed from the roll support device; A recording device comprising:

20. a recording unit that records an image on a sheet; a roll support device according to any one of claims 1 to 18 that winds up a sheet on which an image is recorded; A recording device comprising:

Images