Carrying device and recording device

Abstract

To provide a carrying device which has a holding part capable of rotatably holding a plurality of rolls and a carrying part and can suitably carry each medium of the plurality of rolls with a simple structure.SOLUTION: There is provided a carrying device 1 comprising a holding part 80 capable of rotatably holding a plurality of rolls R, and a carrying part 20 for carrying a medium M delivered from the holding part 80, in which the carrying device is configured so that the roll R is driven to rotate on the holding part 80 when the carrying part 20 carries the medium M delivered from the holding part 80 toward the carrying part 20, and has a frictional force applying part 30 for applying frictional force to each of the media M delivered from the holding part 80 toward the carrying part 20.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a transport device and a recording device. [Background technology]

[0002] Conventionally, various transport devices have been used. Among them, there is a transport device that includes a holding unit capable of rotatably holding multiple roll bodies of media wound in a roll shape, and a transport unit that transports the media unwound from the holding unit. For example, Patent Document 1 discloses a printing device that includes a feeding unit capable of holding multiple roll bodies, and a transport unit that transports the roll paper unwound from the feeding unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-134793 A Summary of the Invention [Problem to be solved by the invention]

[0004] The printing device of Patent Document 1 includes a tension applying unit that applies tension to each of the multiple rolls of paper in response to the conveying force applied by the conveying unit to the roll paper. This tension applying unit includes a first motor and a second motor as a drive unit that rotates and drives the roll body in the unwinding unit. However, in the printing device of Patent Document 1, a drive unit is required for each roll body, which makes the configuration complicated and increases the cost. On the other hand, in a configuration without a drive unit, a complex mechanism is generally required to adjust the tension applied to each medium of the roll bodies of different diameters and different materials. As described above, in a conventional conveying device that includes a holding unit and a conveying unit that can rotatably hold multiple roll bodies, it is difficult to appropriately convey the medium of each of the multiple roll bodies with a simple configuration. [Means for solving the problem]

[0005] In order to solve the above problem, the conveying device of the present invention comprises a holding section capable of rotatably holding multiple roll bodies on which medium is wound in a roll shape, and a conveying section having a drive section and conveying the medium unwound from the holding section by the driving force of the drive section, wherein the roll body is configured to rotate in the holding section as the conveying section conveys the medium unwound from the holding section to the conveying section, and a frictional force imparting section is provided for each of the media unwound from the holding section to the conveying section, which imparts a frictional force that resists the medium being unwound. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic side view of a recording apparatus according to a first embodiment of the present invention. [Diagram 2] 2 is a schematic diagram showing a holding shaft and a frictional force applying unit of the recording apparatus in FIG. 1. [Diagram 3] FIG. 2 is a schematic diagram illustrating a guide unit of the recording apparatus in FIG. [Figure 4] FIG. 6 is a schematic diagram showing a holder shaft and a frictional force applying portion of a recording device according to a second embodiment of the present invention. [Diagram 5] FIG. 11 is a schematic diagram showing a holder shaft and a frictional force applying portion of a recording device according to a third embodiment of the present invention. [Figure 6] FIG. 11 is a schematic diagram showing a retaining shaft and a frictional force applying portion of a recording device according to a fourth embodiment of the present invention. [Figure 7] FIG. 11 is a schematic side view of a recording apparatus according to a fifth embodiment of the present invention. [Figure 8] FIG. 11 is a schematic side view of a recording apparatus according to a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] First, the present invention will be briefly described. In order to solve the above problem, a conveying device of a first aspect of the present invention comprises a holding unit capable of rotatably holding multiple roll bodies of medium wound in a roll shape, and a conveying unit having a drive unit and conveying the medium unwound from the holding unit by the driving force of the drive unit, wherein the roll body is configured to rotate in the holding unit as the conveying unit conveys the medium unwound from the holding unit to the conveying unit, and a frictional force imparting unit is provided for each of the media unwound from the holding unit to the conveying unit, which imparts a frictional force that resists the unwinding of the medium.

[0008] According to this aspect, the roll body is configured to rotate in the holding unit as the transport unit transports the medium paid out from the holding unit to the transport unit, and a friction force applying unit is provided for each of the media paid out from the holding unit to the transport unit, which applies a friction force that resists the medium being paid out. In other words, there is no need for a drive unit for each of the roll bodies, and the mechanism for adjusting the tension applied to the medium can be a friction force applying unit with a simple configuration to apply tension to each of the media paid out from the holding unit to the transport unit. Therefore, the medium of each of the multiple roll bodies can be suitably transported with a simple configuration.

[0009] A transport device according to a second aspect of the present invention is an aspect dependent on the first aspect, characterized in that the frictional force applying portion is a weight.

[0010] According to this aspect, the frictional force applying portion is a weight, and by adopting such a configuration, the frictional force applying portion can have a particularly simple configuration.

[0011] A third aspect of the conveying device of the present invention is an aspect dependent on the second aspect, characterized in that the holding section has a holding shaft that holds the roll body, and an outer peripheral support that supports the outer peripheral surface of the roll body is provided below the holding shaft, and the weight is connected to the holding shaft.

[0012] According to this aspect, an outer circumferential support that supports the outer circumferential surface of the roll body is provided below the holding shaft, and the weight is connected to the holding shaft. With this configuration, it is possible to provide tension to each of the media that is fed from the holding section to the transport section in an appropriate manner while making the frictional force applying section of a particularly simple configuration.

[0013] A transport device according to a fourth aspect of the present invention is an aspect dependent on the first aspect, characterized in that the frictional force applying portion is a spring.

[0014] According to this aspect, the frictional force applying portion is a spring, and by adopting such a configuration, the frictional force applying portion can have a particularly simple configuration.

[0015] A fifth aspect of the conveying device of the present invention is an aspect dependent on the fourth aspect, characterized in that the holding portion has a holding shaft that holds the roll body and is equipped with an outer peripheral bearing that supports the outer peripheral surface of the roll body, and the spring is connected to the holding shaft in an arrangement in which the holding shaft is pressed in a direction approaching the outer peripheral bearing.

[0016] According to this aspect, the holding unit has a holding shaft that holds the roll body and is provided with an outer circumferential support that supports the outer circumferential surface of the roll body, and the spring is connected to the holding shaft in an arrangement in which the holding shaft is pressed in a direction approaching the outer circumferential support. With this configuration, it is possible to provide tension to each of the media that is fed from the holding unit to the conveying unit in an appropriate manner while making the frictional force applying unit have a particularly simple configuration.

[0017] A sixth aspect of the conveying device of the present invention is an aspect dependent on the fourth aspect, characterized in that the holding portion has a holding shaft that holds the roll body and is equipped with an outer peripheral bearing that supports the outer peripheral surface of the roll body, and the spring is provided on the outer peripheral bearing in an arrangement in which the outer peripheral bearing is pressed in a direction approaching the holding shaft.

[0018] According to this aspect, the holding unit has a holding shaft that holds the roll body, and is provided with an outer circumferential bearing that supports the outer circumferential surface of the roll body, and the spring is connected to the outer circumferential bearing in an arrangement in which the outer circumferential bearing is pressed in a direction approaching the holding shaft. With this configuration, it is possible to suitably apply tension to each of the media that is paid out from the holding unit to the conveying unit while making the frictional force imparting unit have a particularly simple configuration.

[0019] A seventh aspect of the conveying device of the present invention is an aspect dependent on the first aspect, and is characterized in that it is provided with an outer peripheral receiver that supports the outer peripheral surface of the roll body, and the frictional force imparting section is configured such that the outer peripheral receiver is positioned in a direction in which the roll body is pulled as the medium unwound to the conveying section is conveyed by the conveying section.

[0020] According to this aspect, the frictional force applying unit includes an outer peripheral receiver that supports the outer peripheral surface of the roll body, and the outer peripheral receiver is arranged in a direction in which the roll body is pulled as the medium fed to the transport unit is transported by the transport unit. With this configuration, the frictional force applying unit can be made particularly simple in configuration, and tension can be suitably applied to each of the media fed from the holding unit to the transport unit.

[0021] An eighth aspect of the conveying device of the present invention is an aspect dependent on the first aspect, characterized in that the holding portion has a holding shaft that holds the roll body, and the frictional force imparting portion is a pressing portion that presses the roll body toward the holding shaft.

[0022] According to this aspect, the holding unit has a holding shaft that holds the roll body, and the frictional force imparting unit is a pressing unit that presses the roll body against the holding shaft. With this configuration, it is possible to provide tension to each of the media that is fed from the holding unit to the transport unit in an appropriate manner while making the frictional force imparting unit have a particularly simple configuration.

[0023] A transport device according to a ninth aspect of the present invention is an aspect dependent on the first aspect, characterized in that the transport device further includes a guide portion that guides the medium fed from the holding portion to the transport portion.

[0024] According to this aspect, the guide portion is provided to guide the medium fed from the holding portion to the transport portion, so that the medium can be suitably fed from the holding portion to the transport portion.

[0025] A recording device according to a tenth aspect of the present invention is characterized in that it comprises a conveying device according to any one of the first to ninth aspects, and a recording unit capable of recording on the medium conveyed by the conveying unit.

[0026] According to this aspect, recording is performed on the medium being transported by the transport unit of the transport device, so that recording can be performed on the medium that has been transported in an optimal manner.

[0027] [Example 1] Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings. First, an overview of a recording device 1A of Example 1, which is both a conveying device 1 and a recording device 1 of the present invention, will be described mainly with reference to FIG. 1. Here, the recording devices 1 of Examples 1 to 6 are configured to be capable of using multiple roll bodies R simultaneously. That is, the configuration is such that multiple roll bodies R with different diameters are set, media M is conveyed from each roll body R simultaneously, and recording is performed on each medium M simultaneously.

[0028] As shown in Figure 1, the recording device 1A of this embodiment is equipped with a holding unit 80 capable of rotatably holding a roll body R on which medium M is wound in a roll shape, and a transport unit 20 having a drive unit 40 which is a motor, and which transports the medium M unwound from the holding unit 80 in a transport direction A by the driving force of the drive unit 40.

[0029] The holding unit 80 includes a holding shaft 2 that holds the roll R that is passed through a paper tube that constitutes the rotation shaft of the roll R, a roller pair 7 as an outer peripheral support that supports the roll R from the outside, a roller 12, and a roller 13. The roller pair 7 is composed of two rollers 7A and 7B, and is configured to be able to support the roll R from the outside with the two rollers 7A and 7B. Here, the holding shaft 2 can hold the roll R through the paper tube of the roll R on which the medium M is wound in a roll shape. The holding shaft 2 itself is configured to rotate following the rotation of the roll R. However, the holding shaft 2 itself may be configured not to rotate, and the paper tube of the roll R may be configured to slide relative to the holding shaft 2 and rotate.

[0030] Holding unit 80 further includes roller 8 and roller 18, and is configured to be able to function as a transport path from roller 7B via roller 8 to roller 12, and also as a transport path from roller 12 to roller 13 via roller 18. Roller 18 is configured to be able to function as a so-called tension generating roller capable of applying tension to medium M when transporting medium M.

[0031] More specifically, roller 18 rotates by the driving force of a motor (not shown), and rotates such that the conveying speed at which medium M is conveyed by roller 18 due to the rotation of roller 18 is slower than the conveying speed of medium M supported and conveyed by conveyor belt 5 constituting conveying section 20. By rotating roller 18 in this manner, tension is applied to medium M in the conveying direction A between roller 18 and conveyor belt 5, and medium M is supported by conveyor belt 5 in a state in which tension is applied in the conveying direction A. Furthermore, recording device 1A of this embodiment is provided with pressure roller 6 in an area facing conveyor belt 5, which presses medium M against conveyor belt 5. However, a configuration without roller 18, pressure roller 6, etc. may be used.

[0032] The transport unit 20 includes a driven roller 3 located upstream in the transport direction A, a driving roller 4 located downstream in the transport direction A, and a transport belt 5 which is an endless belt stretched between the driven roller 3 and the driving roller 4. Here, the transport belt 5 is an adhesive belt having an outer peripheral surface 5a in which an adhesive is applied to the support surface for the medium M which is the outer surface.

[0033] 1, with the medium M attached to the outer peripheral surface 5a, the medium M is supported by and transported on the transport belt 5. In the recording device 1A of this embodiment, the medium support region of the transport belt 5 that supports the medium M is the upper region bridged by the driven roller 3 and the driving roller 4. The driving roller 4 is a roller that rotates in a rotation direction C by the driving force of the driving unit 40, which is a motor, and the driven roller 3 is a roller that rotates by being driven by the rotation of the transport belt 5 that accompanies the rotation of the driving roller 4.

[0034] Moreover, the recording device 1A of this embodiment includes a carriage 100 capable of reciprocating in the width direction B of the conveyor belt 5, and a head 101 attached to the carriage 100. The head 101 is a recording unit capable of recording an image by ejecting liquid ink onto a medium M conveyed in a conveying direction A based on recording data.

[0035] The recording device 1A of this embodiment is capable of forming an image by ejecting ink from the head 101 onto the transported medium M while moving the carriage 100 back and forth in a width direction B intersecting the transport direction A. By being equipped with the carriage 100 configured in this manner, the recording device 1A of this embodiment is capable of forming a desired image on the medium M by repeating the process of transporting the medium M in the transport direction A by a predetermined transport amount and ejecting ink while moving the carriage 100 in the width direction B with the medium M stopped.

[0036] As described above, the recording device 1A of this embodiment is equipped with a so-called serial head type ejection head in which the head 101 mounted on the carriage 100 moves back and forth in the width direction B. However, the present invention is not limited to such an ejection head. For example, the head 101 may be fixed and extended in the width direction B, and may be a line head type recording unit in which a plurality of nozzles that eject ink along the width direction B are arranged. In addition, in the case of a configuration equipped with a line head type recording unit, the medium M can be transported by so-called continuous transport in which the medium M is transported continuously, rather than by so-called intermittent transport in which the medium M is transported by a predetermined transport amount and the medium M is stopped, as in the recording device 1A of this embodiment.

[0037] When the medium M on which an image is formed by ejecting ink from the head 101 is ejected from the recording device 1A of this embodiment, it is sent to a drying device that volatilizes the ink components ejected onto the medium M, or a winding device that winds up the medium M on which the image is formed, which are provided downstream of the recording device 1A of this embodiment.

[0038] Here, a printable material can be preferably used as the medium M. The printable material refers to fabrics, clothing, and other clothing products that are the subject of printing. Fabrics include woven fabrics, knitted fabrics, and nonwoven fabrics made of natural fibers such as cotton, silk, and wool, chemical fibers such as nylon, and composite fibers that are a mixture of these. Clothes and other clothing products include sewn T-shirts, handkerchiefs, scarves, towels, carrier bags, cloth bags, curtains, sheets, bed covers, and other furniture, as well as fabrics that exist as parts before and after cutting, etc. In addition to the above-mentioned printable materials, plain paper, fine paper, and paper dedicated to inkjet recording such as glossy paper can also be used.

[0039] When a printable material is used as the medium M, the printable material is prone to ink strike-through, a phenomenon in which ink ejected onto the medium M seeps through to the back surface, and the transport belt 5 may become dirty with ink. Therefore, the recording apparatus 1A of this embodiment is provided with a cleaning unit 9 for cleaning ink that has struck through and adhered to the transport belt 5. The cleaning unit 9 of this embodiment is provided with a storage tank 14 for storing cleaning liquid, a cleaning roller 10 that is immersed in the cleaning liquid and comes into contact with the transport belt 5, a blade 11 that wipes the cleaning liquid adhered to the transport belt 5, and an absorbing roller 16 that absorbs any cleaning liquid that the blade 11 has not wiped away.

[0040] Next, the holding unit 80, which is a main part of the recording device 1A of this embodiment, will be described in detail with reference to Fig. 1, Fig. 2 and Fig. 3. Here, the holding unit 80 of the recording device 1A of this embodiment is configured so that the roll body R rotates in the holding unit 80 as the medium M fed from the holding unit 80 to the transport unit 20 is transported by the transport unit 20. In other words, a driving unit such as a motor is not connected to the holding shaft 2, and the holding shaft 2 is configured to be able to rotate in a driven manner as the roll body R rotates as the transport unit 20 transports the medium M. Also, as shown in Fig. 3, the holding shaft 2 of the recording device 1A of this embodiment is configured to be able to hold a plurality of roll bodies R arranged in the width direction B.

[0041] In a configuration in which the holding shaft 2 is rotated by the rotation of the roll body R, as in the recording device 1A of this embodiment, the tension along the conveying direction A of the medium M unwound from the holding unit 80 to the conveying unit 20 may be insufficient. If the tension along the conveying direction A is insufficient, there is a risk that the medium M will not be properly attached to the outer circumferential surface 5a of the conveying belt 5. Therefore, the recording device 1A of this embodiment is provided with a frictional force imparting unit 30A as shown in FIG. 2. In other words, the recording device 1A of this embodiment is provided with a frictional force imparting unit 30 that imparts a frictional force against the unwinding of the medium M to each of the media M unwound from the holding unit 80 to the conveying unit 20, in other words, to each of the media M of the multiple roll bodies R held by the holding shaft 2. By imparting a frictional force that resists the unwinding of the medium M, a desired tension can be applied to the medium M unwound from the holding unit 80 to the conveying unit 20.

[0042] In this way, the recording device 1A of this embodiment is configured so that the roll body R rotates in the holding unit 80 as the conveying unit 20 conveys the medium M fed from the holding unit 80 to the conveying unit 20, and a frictional force imparting unit 30A is provided for imparting a frictional force resisting the feeding of the medium M to each of the medium M fed from the holding unit 80 to the conveying unit 20. That is, the recording device 1A of this embodiment can hold multiple roll bodies R on the holding shaft 2, and does not require a drive unit for each of the roll bodies R, and can impart tension to each of the medium M fed from the holding unit 80 to the conveying unit 20 using the frictional force imparting unit 30 with a simple configuration as a mechanism for adjusting the tension applied to the medium M. Therefore, the recording device 1A of this embodiment can suitably convey the medium M of each of the multiple roll bodies R with a simple configuration.

[0043] As described above, the recording device 1A of this embodiment includes the head 101 as a recording unit capable of recording on the medium M transported by the transport unit 20. That is, recording is performed on the medium M transported by the transport unit 20. Therefore, the recording device 1A of this embodiment can record on the medium M that is transported appropriately.

[0044] 2, the frictional force imparting unit 30A in the recording device 1A of this embodiment is a weight 31 provided on the holding shaft 2. By providing the weight 31 on the holding shaft 2, the roll body R is pressed against the rollers 7A and 7B, and a frictional force that resists the unwinding of the medium M is imparted. In this way, by using the weight 31 as the frictional force imparting unit 30, the frictional force imparting unit 30 can have an especially simple configuration.

[0045] 2, the recording device 1A of this embodiment has a holder shaft 2A, a holder shaft 2B, and a holder shaft 2C as the holder shaft 2, and can hold a roll body R1 on which a medium M1 is wound, a roll body R2 on which a medium M2 is wound, and a roll body R3 on which a medium M3 is wound. A weight 31 is provided on each of the holder shafts 2A, 2B, and 2C, so that the roll body R1, the roll body R2, and the roll body R3 can be pressed against rollers 7A and 7B, respectively.

[0046] Thus, the recording device 1A of this embodiment has the holding shaft 2 that holds the roll R as the holding unit 80, and is provided with the roller pair 7 (rollers 7A and 7B) below the holding shaft 2 as an outer periphery receiver that supports the outer periphery of the roll R. And, as described above, the weight 31 is connected to the holding shaft 2. With this configuration, the recording device 1A of this embodiment can provide tension appropriately to each piece of medium M that is fed from the holding unit 80 to the transport unit 20, while making the frictional force applying unit 30 have a particularly simple configuration.

[0047] 3, the recording device 1A of this embodiment includes a guide unit 81 that restricts movement of the roll body R in the width direction B to prevent the medium M from being transported obliquely, and a guide unit 82 that is provided in the transport path of the medium M to prevent the medium M from being transported obliquely. In this manner, it is preferable to include a guide unit that guides the medium M that is paid out from the holding unit 80 to the transport unit 20. This is because the medium M can be suitably paid out from the holding unit 80 to the transport unit 20.

[0048] In this embodiment, the guide portions are provided at two locations, one facing rollers 7A and 7B, and the other at roller 12, but providing them at a plurality of locations (two locations) in the conveying direction A is particularly preferable in order to suppress skewed conveyance. However, the present invention is not limited to this configuration, and the guide portions may be provided at one location in the conveying direction A, or at three or more locations in the conveying direction A.

[0049] In this embodiment, a configuration is used in which a plurality of roll bodies R with different diameters are set, but a configuration may also be used in which a plurality of roll bodies R made of different materials are set. For example, a configuration may be used in which the coefficients of friction between the respective media M unwound from the plurality of roll bodies R and the rollers 7A and 7B are different. Even in such a case, by providing the friction force imparting unit 30, it is possible to impart a desired tension to each of the media M unwound from the holding unit 80 to the transport unit 20.

[0050] [Example 2] Next, the recording apparatus 1B of the second embodiment will be described with reference to FIG. 4. Here, FIG. 4 is a diagram corresponding to FIG. 2 of the recording apparatus 1A of the first embodiment. In FIG. 4, components common to the first embodiment are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording apparatus 1B of this embodiment has the same configuration as the recording apparatus 1A of the first embodiment, except for the configuration of the frictional force applying unit 30. Therefore, the recording apparatus 1B of this embodiment can also be regarded as being represented in FIG. 1 and FIG. 3, and the recording apparatus 1B of this embodiment has the same characteristics as the recording apparatus 1A of the first embodiment, except for the parts described below.

[0051] As shown in Fig. 2, in the frictional force applying section 30A of the recording device 1A of the first embodiment, two weights 31 are provided on each of the holder shaft 2A, the holder shaft 2B, and the holder shaft 2C. On the other hand, as shown in Fig. 4, in the frictional force applying section 30B of the recording device 1B of the present embodiment, there is one weight 31, and one weight 31 is connected to each of the holder shaft 2A, the holder shaft 2B, and the holder shaft 2C. In this way, there is no particular limitation on the number of weights or the method of connection to the holder shaft 2.

[0052] [Example 3] Next, the recording device 1C of the third embodiment will be described with reference to FIG. 5. Here, FIG. 5 is a diagram corresponding to FIG. 2 of the recording device 1A of the first embodiment. In FIG. 5, components common to the first and second embodiments are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording device 1C of this embodiment has the same configuration as the recording device 1 of the first and second embodiments, except for the configuration of the frictional force applying unit 30. Therefore, the recording device 1C of this embodiment can also be regarded as being represented by FIG. 1 and FIG. 3, and the recording device 1C of this embodiment has the same characteristics as the recording device 1 of the first and second embodiments, except for the parts described below.

[0053] 2 and 4, the frictional force imparting unit 30 of the recording device 1 of Example 1 and Example 2 was a weight 31. On the other hand, as shown in FIG. 5, the frictional force imparting unit 30C of the recording device 1C of this embodiment is a spring 32. In detail, two springs 32 are provided on each of the holding shaft 2A, the holding shaft 2B, and the holding shaft 2C, and the holding shaft 2A, the holding shaft 2B, and the holding shaft 2C are each pressed against the roller pair 7 (rollers 7A and 7B) by the spring force of the springs 32. With such a configuration, the recording device 1C of this embodiment has a particularly simple configuration of the frictional force imparting unit 30.

[0054] In other words, in the recording device 1C of this embodiment, the holding unit 80 has a holding shaft 2 that holds the roll R, and is equipped with a pair of rollers 7 (rollers 7A and 7B) that serve as an outer periphery support that supports the outer periphery of the roll R. The spring 32 is connected to the holding shaft 2 in an arrangement in which the holding shaft 2 is pressed in a direction D1 in which the holding shaft 2 approaches the pair of rollers 7. With this configuration, the recording device 1C of this embodiment can provide an especially simple configuration for the frictional force imparting unit 30, while appropriately imparting tension to each piece of medium M that is fed from the holding unit 80 to the transport unit 20.

[0055] [Example 4] Next, the recording device 1D of the fourth embodiment will be described with reference to FIG. 6. Here, FIG. 6 is a diagram corresponding to FIG. 2 of the recording device 1A of the first embodiment. In FIG. 6, components common to the first to third embodiments are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording device 1D of this embodiment has the same configuration as the recording device 1 of the first to third embodiments, except for the configuration of the frictional force applying unit 30. Therefore, the recording device 1D of this embodiment can also be regarded as being represented in FIG. 1 and FIG. 3, and the recording device 1D of this embodiment has the same characteristics as the recording device 1 of the first to third embodiments, except for the parts described below.

[0056] As shown in Fig. 5, the frictional force imparting unit 30C of the recording apparatus 1C of the third embodiment is a spring 32 connected to the holding shaft 2 in an arrangement in which the holding shaft 2 is pressed in a direction D1 in which the holding shaft 2 approaches the roller pair 7. On the other hand, as shown in Fig. 6, the frictional force imparting unit 30D of the recording apparatus 1D of the present embodiment is a spring 32 provided on the roller pair 7 in an arrangement in which the roller pair 7 (rollers 7A and 7B) serving as an outer periphery receiver is pressed in a direction D2 in which the roller pair approaches the holding shaft 2. With this configuration, too, it is possible to provide tension appropriately to each of the media M fed from the holding unit 80 to the transport unit 20, while making the frictional force imparting unit 30 have a particularly simple configuration.

[0057] In the recording apparatus 1 of Examples 1 to 3, when multiple roll bodies R are used simultaneously, the holding shaft 2 is divided in the width direction B to accommodate multiple roll bodies R of different diameters, and the position of each of the holding shafts 2 relative to the roller pair 7 is adjustable. On the other hand, in the recording apparatus 1D of this embodiment, when multiple roll bodies R are used simultaneously, the roller pair 7 (rollers 7A and 7B) is divided in the width direction B to accommodate multiple roll bodies R of different diameters, and the position of each of the roller pair 7 relative to the holding shaft 2 is adjustable. In addition, in the recording apparatus 1C of Example 3 and the recording apparatus 1D of this embodiment, a spring is used as the frictional force imparting unit 30, but it is also possible to use an elastic member such as a rubber member instead of the spring.

[0058] [Example 5] Next, the recording device 1E of the fifth embodiment will be described with reference to FIG. 7. Here, FIG. 7 is a diagram corresponding to FIG. 1 of the recording device 1A of the first embodiment. In FIG. 7, components common to the first to fourth embodiments are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording device 1E of this embodiment has the same configuration as the recording device 1 of the first to fourth embodiments, except for the configuration of the frictional force applying unit 30. Therefore, the recording device 1E of this embodiment can also be regarded as being represented by FIG. 3, and the recording device 1E of this embodiment has the same characteristics as the recording device 1 of the first to fourth embodiments, except for the parts described below.

[0059] As described above, the frictional force imparting unit 30 of the recording device 1 of the first to fourth embodiments is configured to impart tension to each of the media M fed from the holding unit 80 to the transport unit 20 by pressing the roll R and the roller pair 7, which is an outer periphery receiver, against each other. On the other hand, as shown in FIG. 7, the frictional force imparting unit 30 of the recording device 1E of this embodiment is a pressing unit 15 that has a roller portion 15a that contacts the roll R and a spring portion 15b that presses the roller portion 15a against the roll R, and can press the roll R toward the holding shaft 2. Pressing the roll R toward the holding shaft 2 can also impart frictional force, and tension can be imparted to each of the media M fed from the holding unit 80 to the transport unit 20. With this configuration, the frictional force imparting unit 30 can be made particularly simple in configuration, and tension can be suitably imparted to each of the media M fed from the holding unit 80 to the transport unit 20.

[0060] As another example of a configuration that does not have an outer peripheral receiver like the recording device 1E of this embodiment, instead of providing the pressing unit 15 as the frictional force imparting unit 30, the holding shaft 2 may be configured not to rotate with the rotation of the roll body R, and a high-friction forming unit such as a structure that spreads from the inside relative to the paper tube of the roll body R may be provided on the holding shaft 2, and the high-friction forming unit may be used as the frictional force imparting unit 30. With such a configuration, the frictional force imparting unit 30 can be made particularly simple in configuration, and tension can be suitably imparted to each piece of medium M fed from the holding unit 80 to the transport unit 20.

[0061] [Example 6] Next, the recording apparatus 1F of the sixth embodiment will be described with reference to FIG. 8. Here, FIG. 8 is a diagram corresponding to FIG. 1 of the recording apparatus 1A of the first embodiment. In FIG. 8, components common to the first to fifth embodiments are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording apparatus 1F of this embodiment has the same configuration as the recording apparatus 1 of the first to fifth embodiments, except for the configuration of the frictional force applying unit 30. Therefore, the recording apparatus 1F of this embodiment can also be regarded as being represented by FIG. 3, and the recording apparatus 1F of this embodiment has the same characteristics as the recording apparatus 1 of the first to fifth embodiments, except for the parts described below.

[0062] As shown in Fig. 1, in the recording apparatus 1A of the first embodiment, the roller pair 7 serving as the outer periphery support is configured to support the roll body R from a vertically downward direction. On the other hand, as shown in Fig. 8, in the recording apparatus 1F of the present embodiment, the roller pair 7 serving as the outer periphery support is configured to support the roll body R from a position shifted from the vertically downward direction, more specifically, from a direction in which the roll body R is pulled from the conveying unit 20 side as the conveying unit 20 conveys the medium M.

[0063] From another perspective, the recording device 1F of this embodiment includes a pair of rollers 7 that are outer periphery receivers that support the outer periphery of the roll R, and the frictional force imparting unit 30 is configured such that the pair of rollers 7 is disposed in a direction in which the roll R is pulled as the medium M fed to the transport unit 20 is transported by the transport unit 20. Even with this configuration, it is possible to impart frictional force and impart tension to each piece of medium M fed from the holding unit 80 to the transport unit 20. And, while the frictional force imparting unit 30 has a particularly simple configuration, it is possible to suitably impart tension to each piece of medium M fed from the holding unit 80 to the transport unit 20.

[0064] 8, in this embodiment, a configuration in which the roller pair 7 is disposed in a direction in which the roll R is pulled as the medium M fed to the transport unit 20 is transported by the transport unit 20 is formed by passing the medium M between rollers 7A and 7B that constitute the roller pair 7. With this configuration, a configuration in which the roller pair 7 is disposed in a direction in which the roll R is pulled as the medium M fed to the transport unit 20 is transported by the transport unit 20 can be easily formed.

[0065] It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the invention as defined in the claims, and needless to say, these modifications are also included within the scope of the present invention. [Explanation of symbols]

[0066] 1...recording device (conveying device), 1A...recording device, 1B...recording device, 1C...recording device, 1D...recording device, 1E...recording device, 1F...recording device, 2...feeding section, 3...driven roller, 4...driving roller, 5...conveying belt, 5a...outer surface, 6...pressurizing roller, 7...roller pair (outer peripheral receiver), 7A...roller, 7B...roller, 8...roller, 9...cleaning section, 10...cleaning roller, 11...blade, 12...roller, 13...roller, 14...storage tank, 15...pressure section, 15a...roll roller portion, 15b...spring portion, 16...absorption roller, 18...roller, 20...transport portion, 30...frictional force applying portion, 30A...frictional force applying portion, 30B...frictional force applying portion, 30C...frictional force applying portion, 30D...frictional force applying portion, 31...weight, 32...spring, 40...drive portion, 80...holding portion, 81...guide portion, 82...guide portion, 100...carriage, 101...head (recording portion), M...medium, M1...medium, M2...medium, M3...medium, R...roll body, R1...roll body, R2...roll body, R3...roll body

Claims

1. a holding section capable of rotatably holding a plurality of roll bodies each having a medium wound in a roll shape; a transport unit that has a drive unit and transports the medium fed out from the holding unit by a driving force of the drive unit; Equipped with The roll body is configured to rotate in the holding section in accordance with the transport section transporting the medium fed from the holding section to the transport section, A transport device comprising: a frictional force applying section for applying a frictional force to each of the media delivered from the holding section to the transport section, the frictional force applying section applying a frictional force to resist the delivery of the media.

2. 2. The conveying device according to claim 1, The conveying device, wherein the frictional force applying portion is a weight.

3. 3. The conveying device according to claim 2, the holding portion has a holding shaft that holds the roll body, a peripheral support for supporting an outer peripheral surface of the roll body, the peripheral support being located below the holding shaft; A conveying device characterized in that the weight is connected to the holding shaft.

4. 2. The conveying device according to claim 1, The conveying device, wherein the frictional force applying portion is a spring.

5. 5. The conveying device according to claim 4, the holding portion has a holding shaft that holds the roll body, an outer circumferential support for supporting an outer circumferential surface of the roll body; A conveying device characterized in that the spring is connected to the retaining shaft in an arrangement in which the retaining shaft is pressed in a direction approaching the outer peripheral support.

6. 5. The conveying device according to claim 4, the holding portion has a holding shaft that holds the roll body, an outer circumferential support for supporting an outer circumferential surface of the roll body; A conveying device, characterized in that the spring is provided on the outer peripheral receiver in an arrangement such that the outer peripheral receiver is pressed in a direction approaching the holding shaft.

7. 2. The conveying device according to claim 1, an outer circumferential support for supporting an outer circumferential surface of the roll body; A conveying device characterized in that the friction force imparting section is configured so that the outer peripheral receiver is positioned in a direction in which the roll body is pulled as the medium unwound in the conveying section is conveyed by the conveying section.

8. 2. The conveying device according to claim 1, the holding portion has a holding shaft that holds the roll body, The conveying device, wherein the frictional force imparting portion is a pressing portion that presses the roll body toward the holding shaft.

9. 2. The conveying device according to claim 1, A transport device comprising: a guide portion that guides the medium fed from the holding portion to the transport portion.

10. A conveying device according to any one of claims 1 to 9; a recording unit capable of recording on the medium transported by the transport unit; A recording device comprising:

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