JP7196975B2 - Feeding device for roll media and recording device - Google Patents

Description

The present invention relates to a roll medium feeding device and a recording apparatus equipped with the feeding device.

2. Description of the Related Art Conventionally, there is known a recording apparatus that includes a roll medium such as roll paper and prints on continuous paper supplied from the roll medium.
For example, Japanese Laid-Open Patent Publication No. 2002-100002 discloses a printing apparatus having roll paper in two stages, upper and lower. According to this document, the roll paper is set in a sheet feeding device provided in the printing device. The supply device includes an arm member and a swinging member provided at the tip of the arm member, and the roll paper is set on the arm member obliquely from above. Further, as shown in FIG. 4 of the document, the swinging member at the tip of the arm member extends in a substantially horizontal direction, and the tip is depicted sharply.

From the description in Patent Document 1, it is presumed that the user sets the roll paper in the supply device. was sought. For example, if the supply device in the lower stage is of a drawer type, it is conceivable that the roll paper can be efficiently set.

JP 2016-104665 A

However, when the drawer type is applied to the supply device of Patent Document 1, there is a possibility that the roll paper may be damaged. Specifically, when the roll paper placed on the pull-out unit moves horizontally and is stored in the supply device, the swinging member at the tip of the arm member hits the roll paper, which may damage the roll paper. there were.

A roll medium supply device according to the present application includes a holding section that supports a shaft of a roll medium and holds the roll medium, and a roll medium that is held by the holding section and is supported from below in the direction of the shaft. a guide member that is pressed toward and abuts against and is displaced in accordance with a change in the outer diameter of the roll medium, wherein the holding portion can be pulled out in a first direction from the supply device main body, and the guide member When the pulled-out holding portion is accommodated in the supply device main body, it abuts against the roll medium and retracts downward from the movement path of the holding portion against the force that is pushed upward from below. Let me.

A recording apparatus according to the present application includes a holding unit that supports a shaft of a roll medium and holds the roll medium, and presses the roll medium held by the holding unit from below in the direction of the shaft. a guide member that abuts against the roll medium and is displaced according to a change in the outer diameter of the roll medium; The holding portion can be pulled out in a first direction from the main body of the supply device, and the holding portion pulled out from the guide member is accommodated in the main body of the supply device. At this time, it abuts against the outer periphery of the roll medium and is retracted downward from the moving path of the holding section against the force that is pressed upward from below.

FIG. 2 is a perspective view of the recording apparatus according to the first embodiment as viewed from above the front. FIG. 2 is a side sectional view of the recording device; FIG. 3 is an enlarged view of the supply device in FIG. 2 and a diagram showing a state in which a lower holding portion is pulled out; The side view which shows the outline|summary of a guide member. FIG. 4 is an enlarged perspective view of a swinging portion; The perspective view which looked at the rocking|swiveling part from the downward direction. FIG. 5 is an enlarged view of the vicinity of the oscillating portion of FIG. 4; FIG. 10 is a perspective view showing the vicinity of the paper feeding unit inside the feeding device from the front after the lower holding unit is pulled out; FIG. 10 is a diagram of the operation of the guide member when storing the roll medium; FIG. 11 is a side cross-sectional view for explaining a first indexing operation of the roll medium according to the second embodiment; FIG. 11 is a side cross-sectional view for explaining a second indexing operation of the roll medium; FIG. 11 is a side cross-sectional view for explaining a third roll medium indexing operation;

Embodiment 1
***Overview of recording device***
FIG. 1 is a perspective view of the recording apparatus viewed from above the front.
The recording apparatus 200 according to the present application is an inkjet type that rotatably holds a roll medium 1 with a sheet wound around a core member, and prints by ejecting ink onto the surface of the sheet pulled out from the roll medium 1. is a large format printer. A large-format printer is a printer capable of printing and recording on a sheet of a large size such as A0 (841 mm) in short side width. The roll medium 1 is roll paper in which a sheet is wound around a cylindrical core member, and has a plurality of sizes. As the sheet, paper, resin film, fabric, or a sheet member in which these are combined can be used.

As shown in FIG. 1, the recording device 200 includes a recording section 150, a supply device 100, and the like. The recording device 200 has a substantially rectangular parallelepiped shape, and has a configuration in which a feeding device 100 and a recording section 150 are stacked. The supply device 100 is a paper supply unit, and two roll media 1 are set. The extending direction of the shaft 2, which is the rotation axis of the roll medium 1, is the X-axis direction, and the stacking direction of the roll medium 1 is the Y-axis direction. Also, the depth direction of the recording apparatus 200 is defined as the Z-axis direction. The length of the recording apparatus 200 in the X-axis direction is also referred to as width, the tip side of the X-axis arrow is also referred to as the right side, and the base end side of the X-axis arrow is also referred to as the left side. Similarly, the length of the recording apparatus 200 in the Y-axis direction is also referred to as the height, the tip side of the Y-axis arrow is referred to as the upper side, and the base end side of the Y-axis arrow is referred to as the lower side. The side where the user stands facing the recording device 200 and sets the roll medium in the supply device 100 is the base end side of the Z-axis arrow, which is referred to as the pull-out direction. The housing direction on the opposite side is the tip side of the Z-axis arrow. Note that the pull-out direction is also called upstream, and the storage direction is also called downstream. The same applies to other drawings.

As shown in FIG. 1, the recording section 150 includes a support base 50, a guide section 55, a carriage 60, a recording head 65, and the like.

The support base 50 is a plate-like member arranged substantially in the center inside the recording unit 150 and extending in the width direction. The guide portion 55 is a bar-shaped or plate-shaped member that is supported on the rear surface obliquely upward from the support base 50 and extends in the width direction. The guide portion 55 movably supports the carriage 60 . The carriage 60 is configured to be reciprocally movable in the width direction along the guide portion 55 by a drive motor (not shown) and a drive belt. A recording head 65 is mounted on the carriage 60 . The recording head 65 has a plurality of ink ejection holes (not shown) facing the support base 50 . The recording head 65 performs recording by ejecting ink onto the sheet supported by the support base 50 .

FIG. 2 is a side sectional view of the recording apparatus.
As shown in FIG. 2, the recording section 150 further includes a conveying section 70, a discharge support table 80, a cutting section 90, and the like.
The transport section 70 is composed of intermediate rollers 71, transport rollers 72, and the like.
The intermediate roller 71 and the transport roller 72 support and transport the sheet supplied from the lower supply device 100 to the support base 50 . The intermediate roller 71 and the transport roller 72 have roller shafts extending in the width direction. A driving motor (not shown) is connected to the roller shaft, so that the intermediate roller 71 and the transport roller 72 can be rotationally driven. The intermediate roller 71 and the conveying roller 72 are each provided with a pair of driven rollers (not shown), and the front and back surfaces of the sheet are nipped and conveyed by each pair of rollers.

The discharge support table 80 is arranged downstream of the support table 50 . The sheet discharge support table 80 supports the sheet that has passed through the support table 50 and guides the sheet to a sheet discharge port 81 formed on the front surface of the recording apparatus 200 . The cutting section 90 cuts the sheet to an arbitrary length under the control of a control section (not shown) provided inside the recording apparatus 200 . The sheet cut by the cutting section 90 is discharged from the discharge port 81 .
In the above description, the recording unit 150 is of the ink jet type, but may be of another printing type. For example, an electrophotographic recording unit 150 having a photosensitive drum may be used.

***Summary of feeder***
As shown in FIG. 2, the supply device 100 according to the present application has a two-tiered structure consisting of an upper holding section 10 and a lower holding section 40, and the lower holding section 40 is of a drawer type.
The supply device 100 includes an upper holding section 10, a lower holding section 40, and a paper feeding section 11 capable of supplying sheets to the recording section 150 independently of the upper and lower sides.
In this embodiment, the supply device 100 having two upper and lower holding sections will be described, but the lower holding section 40 may have only one stage.

Return to FIG.
The upper holding section 10 is positioned above the supply device 100 . When the roll medium 1 is set in the upper holding unit 10, the user inserts the roll medium 1 directly from obliquely above.

The lower holding section 40 is of a drawer type, and when the roll medium 1 is set, it can be pulled out by grasping a handle portion (not shown) below the lower holding section 40 and pulling it forward.

FIG. 3 is an enlarged view of the supply device in FIG. 2, and also illustrates a mode in which the lower holding portion is pulled out.
As shown in the drawing state diagram of FIG. 3, the lower holding portion 40 is composed of a base portion 7, a pair of bearing portions 8, a rail (not shown), and the like. The lower holding part 40 is a part that supports the shaft 2 of the roll medium 1 and holds the roll medium 1 . It should be noted that the pull-out direction and the retraction direction of the lower holding portion 40 are also referred to as the first direction. In other words, the first direction is the horizontal direction from the front of the supply device 100 .
The base portion 7 is a rectangular plate-like member that forms the bottom surface of the lower holding portion 40 .

The bearing portions 8 are symmetrical plate-like members erected from the left and right ends of the base portion 7 respectively. A pair of bearing portions 8 are provided with a notch portion 9 near the center of the upper surface portion. The notch 9 holds the roll medium 1 by supporting the shaft 2 of the roll medium 1 . A rail (not shown) extending in the Z-axis direction is provided on the end surface of the base portion 7 in the width direction, and a rail receiving portion (not shown) provided at a corresponding position of the main body of the supply device 100 is provided. and slide. As a result, the lower holding part 40 can be pulled out and stored. When the lower holding unit 40 is in the storage state, the shaft 2 of the roll medium 1 is connected to a drive mechanism (not shown) provided in the main body of the supply device 100 to rotate the roll medium 1 forward and backward. can be driven to

The paper feeding unit 11 is composed of a lower path member 12, an upper path member 13, a separation flapper 14, a cam member 18, a guide member 30, and the like.

As shown in FIG. 3, the lower path member 12 is a support member that supports the sheet pulled out from the roll medium 1 from the back side. The lower path member 12 is a member that forms the sheet feeding path 17 that feeds the sheets to the conveying section 70 (FIG. 2), and the upper surface thereof is inclined obliquely upward in the depth direction. A cam member 18 for driving the guide member 30 is provided inside the plate member of the lower path member 12 . A receiving portion for the first rotating shaft 20 that engages with the fulcrum of the guide member 30 is provided near the center of the upper surface of the lower path member 12 .

The upper path member 13 forms a pair with the lower path member 12 to form a paper feed path 17. The lower surface of the upper path member 13 is inclined upward in the depth direction along the upper surface of the lower path member 12. doing. The sheet pulled out from the roll medium 1 passes through the paper feed path 17 and is transferred to the conveying section 70 (FIG. 2) located above. A receiving portion for the third rotating shaft 15 is provided at the end portion of the upper path member 13 on the roll medium 1 side, and the separation flapper 14 is engaged therewith.

The separation flapper 14 is an anchor-shaped member that lightly presses the roll medium 1 with a torsion spring (not shown). The separation flapper 14 is rotatable with the third rotating shaft 15 as a fulcrum. A roller 16 is provided at the end of the separation flapper 14 near the roll medium 1 . The separation flapper 14 is used for indexing the roll medium 1 . The indexing operation of the roll medium 1 will be described later.

*** Guide member ***
FIG. 4 is a side view showing the outline of the guide member.
The guide member 30 is a guide member for the roll medium 1, which includes an arm portion 31, a swing portion 32, and the like.

As shown in FIG. 4, the arm portion 31 is a rod-shaped member that swings up and down in a seesaw shape with the first rotation shaft 20 as a fulcrum. The first rotating shaft 20 provided on the arm portion 31 is engaged with a receiving portion of the first rotating shaft 20 provided on the upper portion of the lower path member 12 .
In the initial state before the roll medium 1 is set, the arm portion 31 extends long upstream and short downstream along the first direction with the first rotation shaft 20 as a fulcrum. A bent portion slightly bent downward is provided on the upstream side of the arm portion 31 in order to easily support the roll medium 1 . The downstream end of the arm portion 31 is defined as one end, and the upstream end is defined as the other end. Note that the other end is also referred to as the tip.

A coil spring 19 is connected to one end of the arm portion 31 on the downstream side. The coil spring 19 is connected to a cam member 18 provided inside the lower path member 12 so that the position of the tip of the arm portion 31 can be moved up and down according to the rotation of the cam member 18 . In other words, the guide member 30 is pressed from below in the direction of the shaft 2 and comes into contact with the roll medium 1 held by the lower holding section 40 . The guide member 30 is provided so as to be displaced according to the change in the outer diameter of the roll medium 1 .

FIG. 5 is an enlarged perspective view of the oscillating portion.
A swing portion 32 is provided at the tip of the arm portion 31 . The oscillating portion 32 is a jig member for the roll medium 1 , and its tip is provided so as to protrude from the tip of the arm portion 31 .
The rocking portion 32 is composed of a first roller 33, two second rollers 34 and 35, a torsion spring 37, and the like.

The swinging portion 32 is a gable roof member having a first side 38 on the downstream side and a second side 39 extending downward from the first side 38 on the upstream side. The first side 38 extends substantially horizontally, and the second side 39 extends downward on the upstream side at an angle of about 30 degrees with respect to the horizontal direction.
A second roller 34 is provided at the upstream end of the first side 38 of the oscillating portion 32 , and a second roller 35 is provided at the downstream end. In other words, the second rollers 34 and 35 are provided at both ends of the first side 38, respectively. A second rotating shaft 36 extending in the width direction is provided in the center of the first side 38 of the swinging portion 32 . In other words, the second rotating shaft 36 is arranged between the two second rollers 34 and 35 . The second rotating shaft 36 engages with a receiving portion of the second rotating shaft 36 provided on the distal end side of the arm portion 31, and the swinging portion 32 rotates about the second rotating shaft 36 as a fulcrum. movably provided. It should be noted that the number of the second rollers may be one.
A first roller 33 is provided at the upstream end of the second side 39 of the swing portion 32 .

In a preferred example, the main bodies of the arm portion 31 and the swing portion 32 are made of resin. For example, ABS resin or polycarbonate resin is used. In addition, you may use a metal. In a preferred example, the first roller 33 is a resin roller. For example, a polyacetal resin roller is used. Any material that has high slidability and does not easily scratch the paper may be used. For example, rubber or elastomer may be used. The second rollers 34, 35 are also the same. Although the details will be described later, the reason why the arm portion 31 is made of resin is that a plurality of arm portions (guide members) are provided along the width of the seat, thereby distributing the load.
In a preferred embodiment, the first roller 33 has a diameter of approximately 15 mm and a length of approximately 5 cm. The second rollers 34, 35 are also the same.

FIG. 6 is a perspective view of the oscillating portion as seen from below.
A torsion spring 37 is provided on the back surface of the swinging portion 32 as a biasing portion that presses downward the side on which the first roller 33 is arranged with respect to the second rotating shaft 36 . The center of the torsion spring 37 is inserted into both end portions of the second rotating shaft 36 . Both ends of the torsion spring 37 are fixed to L-shaped locking ribs provided inside the arm portion 31 .

Return to FIG.
Such a swinging portion 32 swings like a seesaw by engaging with the other end side of the arm portion 31 with the second rotating shaft 36 as a fulcrum. In the storage process of the lower holding unit 40 , the first roller 33 first contacts the roll medium 1 . As the roll medium 1 comes into contact with the first roller 33 , the swinging portion 32 moves in the direction of pushing down the first roller 33 with the second rotating shaft 36 as a fulcrum. At this time, the resistance of the torsion spring 37 acts in the direction of pushing up the roll medium 1 .

When a pressing force that cannot be absorbed by the movement of the swinging portion 32 alone is applied, the entire guide member 30 moves downward. More specifically, the swinging portion 32 of the guide member 30 abuts against the roll medium 1 , and the leading end side of the guide member 30 is downwardly rotated about the first rotary shaft 20 against the force of the coil spring 19 pressing upward from below. , and retreats downward from the movement path of the lower holding portion 40 . In other words, when the guide member 30 comes into contact with the roll medium 1 , the swinging portion 32 and the arm portion 31 swing so that the roll medium 1 is held on the first side 38 of the swinging portion 32 . move. The two second rollers 34 and 35 are in contact with the outer periphery of the roll medium 1 in the stored state of the lower holding section 40 . In other words, the roll medium 1 is set on the two second rollers 34 and 35 in the stored state. At least one second roller should be in contact with the outer circumference of the roll medium 1 .

FIG. 7 is an enlarged view of the vicinity of the oscillating portion in FIG.
FIG. 7 is a diagram of the swinging portion 32 in a state in which the extending portion on the downstream side of the bending portion of the arm portion 31 is substantially horizontal.
As shown in FIG. 7, a straight line connecting the centers of the rotation axis of the first roller 33 and the rotation axis of the second roller 34 of the swing section 32 intersects the Z-axis direction at an angle α. In a preferred embodiment, the angle α is approximately 30 degrees. The angle β between the extending portion of the arm portion 31 on the downstream side of the bent portion and the Z-axis direction is approximately 1 degree.
Compared to FIG. 4 , the swinging portion 32 as a whole is raised upward in FIG. 7 , but the first roller 33 is positioned below the second rollers 34 and 35 . In other words, the first roller 33 is arranged below the second rollers 34 and 35 when not in contact with the roll medium 1 .

FIG. 8 is a perspective view of the vicinity of the paper feeding section inside the feeding device viewed from the front with the lower holding section pulled out.
As shown in FIG. 8, the paper feeding section 11 is provided with a plurality of guide members. In addition, in order to classify each guide member, they are numbered as guide members 30A, 30B, and 30C. The reason why a plurality of guide members are provided is to accommodate roll media 1 of various sizes. The supply device 100 is designed to accommodate roll media 1 with a sheet width of 10 inches to 44 inches and a diameter of approximately 10.3 cm to 17 cm. Note that the size is not limited to this size, and a roll medium 1 outside the above size range may be used according to design specifications.

As shown in FIG. 8, the guide member 30A is installed at a position approximately 14 inches from the position of a flange (not shown) attached to the right end face of the roll medium 1 as a reference (reference position). The guide member 30B is installed at a position of approximately 20 inches, and the guide member 30C is installed at a position of approximately 31 inches. In this way, the plurality of guide members are arranged densely on the side closer to the reference position and sparsely arranged away from the reference position. Although not shown, guide members are provided on the left side of the guide member 30C and on the right side of the guide member 30A, so that even the roll media 1 having different sheet widths can be supported at least at both ends. ing.
With such a configuration, the roll medium 1 with a sheet width of 10 inches to 44 inches can be accommodated.

9A and 9B are operation diagrams of the guide member when the roll medium is accommodated, and correspond to FIG. FIG. 9 shows a housing process of housing the lower holding section 40 inside the supply device 100 from the state of FIG.
The guide member 30 comes into contact with the roll medium 1 when the pulled-out lower holding section 40 is accommodated in the main body of the supply device 100, and pushes the lower holding section 40 against the force that is pressed upward from below. As indicated by the arrow F from the movement path, it is retracted downward. At this time, first, the first roller 33 contacts the roll medium 1 at a position lower than the height of the shaft 2 of the roll medium 1, and the guide member 30 moves toward the first rotation shaft downstream in the first direction. 20 as a fulcrum to retreat.
In the storage state of the lower holding section 40, the roll medium 1 is rotatably set on the two second rollers 34 and 35. As shown in FIG.

In the above description, the configuration in which the lower holding section 40 is of a drawer type has been described, but the upper holding section 10 may also be of a drawer type. In other words, in the plurality of holding portions arranged in the vertical direction, all the holding portions may be of a drawer type, or at least the holding portions below the uppermost stage may be made drawable.

As described above, according to the feeding device 100 for the roll medium 1 of the present embodiment and the recording device 200 including the feeding device 100, the following effects can be obtained.
A supply device 100 for the roll medium 1 includes a lower holding section 40 that supports the shaft 2 of the roll medium 1 and holds the roll medium 1, and the roll medium 1 held by the lower holding section 40, which is supported by the shaft 2 from below. and a guide member 30 that is pressed in two directions to abut and is displaced according to a change in the outer diameter of the roll medium 1 . The lower holding section 40 can be pulled out in the first direction from the main body of the feeding device 100, and the guide member 30 contacts the roll medium 1 when the pulled out lower holding section 40 is accommodated in the main body of the feeding device. In contact therewith, it is retracted downward from the moving path of the lower holding portion 40 against the force that is pressed upward from below.

According to this supply device 100, when the lower holding section 40 in which the roll medium 1 is set is accommodated, the guide member 30 is retracted downward from the movement path of the lower holding section 40. It is possible to suppress the occurrence of scratches on the roll medium 1 due to collision with the roll medium 1 .

In the first direction, the feeding device 100 for the roll medium 1 is configured so that the pull-out direction is upstream and the storage direction is downstream. Rotate and retreat.
According to the feeding device 100 , the guide member 30 is retracted by rotating about the first rotating shaft 20 , so that the roll medium 1 is not damaged when the roll medium 1 collides with the guide member 30 . The occurrence can be suppressed.

The guide member 30 includes an arm portion 31 and a swing portion 32. One end of the arm portion 31 is positioned downstream of the first rotation shaft 20, and the swing portion 32 is the arm portion. 31 is provided on the other end side.
According to this configuration, the guide member 30 includes the arm portion 31 and the swing portion 32 , so that the impact when the guide member 30 comes into contact with the roll medium 1 can be reduced.

The swing section 32 moves the first roller 33 that contacts the roll medium 1 and at least one second roller that contacts the roll medium 1 in the lower holding section 40 in the storage process of the lower holding section 40 . have.
According to this configuration, since the first roller 33 first comes into contact with the roll medium 1 in the storage process of the lower holding unit 40, the rotation of the first roller 33 allows the roll medium 1 to move toward the roll medium 1 at the time of contact. It can absorb the impact. Furthermore, since the first roller 33 is made of resin, it is possible to further suppress the occurrence of scratches on the roll medium 1 at the time of contact.

In the swing section 32 , the first roller 33 is arranged upstream of the second rollers 34 and 35 , and is positioned below the height of the shaft 2 of the roll medium 1 during the storage process of the lower holding section 40 . contact the roll medium 1;
According to this configuration, the first roller 33 comes into contact with the lower side of the roll medium 1 in the storage process of the lower holding unit 40 , so that the rotation of the first roller 33 causes the guide member 30 to retract downward. becomes smoother.

A swinging portion 32 on the other end side of the arm portion 31 is provided with a second rotating shaft 36 , and the swinging portion 32 is provided rotatably about the second rotating shaft 36 as a fulcrum.
According to this configuration, the swinging portion 32 can be rotated about the second rotating shaft 36, so that the guide member 30 can be retracted downward more smoothly.

Two second rollers 34 and 35 are provided, and the second rotation shaft 36 is arranged between the two second rollers 34 and 35. Rollers 34 and 35 are brought into contact with the outer circumference of roll medium 1 .
According to this configuration, the roll medium 1 can be rotatably supported by the two second rollers 34 and 35 in the stored state of the lower holding section 40 .

The swinging portion 32 includes a torsion spring 37 as a biasing portion that presses downward the side on which the first roller 33 is arranged with respect to the second rotating shaft 36 .
According to this configuration, when the first roller 33 comes into contact with the roll medium 1, the torsion spring 37 generates a force in the direction of pushing up the roll medium 1, so that the guide member 30 can be smoothly retracted downward.

The first roller 33 is positioned below the second rollers 34 and 35 when not in contact with the roll medium 1 .
According to this configuration, the first roller 33 can be brought into contact with the roll medium 1 below the center of the roll medium 1 when in contact with the roll medium 1 .

The shaft 2 of the roll medium 1 is connected to the drive mechanism and becomes drivable when the lower holding section 40 is in the stored state.
According to this configuration, a sheet pulled out from the roll medium 1 can be fed by the drive mechanism in the stored state of the lower holding section 40 .

A plurality of holding units of the supply device 100 for the roll medium 1 are arranged in the vertical direction, and at least the lower stage holding unit 40 below the uppermost stage can be pulled out.
According to this supply device 100, setting of the roll medium 1 to the lower holding section 40 is facilitated.

According to the recording apparatus 200 , the lower holding section 40 supports the shaft 2 of the roll medium 1 and holds the roll medium 1 , and the roll medium 1 held by the lower holding section 40 is supported from below by the shaft 2 . A feeding device 100 having a guide member 30 that is pressed in a direction to abut against it and is displaced according to a change in the outer diameter of the roll medium 1, and a paper feed path 17 through which a sheet pulled out from the roll medium 1 passes. and includes a recording unit 150 that records on a sheet pulled out from the roll medium 1, the lower holding unit 40 can be pulled out from the main body of the supply device 100, and the guide member 30 is supplied by the pulled out lower holding unit 40 When stored in the main body of the apparatus 100, it abuts against the outer periphery of the roll medium 1 and is retracted downward from the movement path of the lower holding section 40 against the force that is pressed upward from below.

According to the recording apparatus 200 , the guide member 30 is retracted downward from the movement path of the lower holding unit 40 when the lower holding unit 40 in which the roll medium 1 is set is stored. It is possible to suppress the occurrence of scratches on the roll medium 1 due to collision.

Embodiment 2
＊＊＊Cue operation of roll media＊＊＊
10 to 12 show the indexing operation of the roll medium.
A feeding device 110 of the present embodiment shown in FIGS. 10 to 12 differs from that of Embodiment 1 in that an arm portion 31 of a guide member 30 is provided with a light reflective sensor S for detecting the presence or absence of a sheet. The sensor S emits light from below the arm portion 31 of the guide member 30 in a direction that intersects an imaginary line in the paper feed path 17 through which the sheet of the roll medium 1 passes. The sensor S detects the presence or absence of the sheet based on the presence or absence of reflection of light. In the following, the same numbers are assigned to the same configurations as in the first embodiment, and the description overlapping with the first embodiment is omitted.
10A and 10B are side cross-sectional views for explaining the first indexing operation of the roll medium set in the lower holding section.
As shown in FIG. 10 , in the first indexing operation of the roll medium 1 , the separation flapper 14 rotates in the direction of arrow A due to the biasing force of a torsion spring (not shown) and rolls around the outer periphery of the roll medium 1 . 16 are maintained in contact.

Next, the roll medium 1 connected to a drive mechanism (not shown) is reversely rotated in the arrow B direction.
By rotating the roll medium 1 in the reverse direction, the leading edge of the sheet of the roll medium 1 is detected by the sensor S provided on the arm portion 31 of the guide member 30 . When the sensor S detects the leading edge of the sheet, the drive mechanism (not shown) is stopped to stop the reverse rotation of the roll medium 1 .

FIG. 11 is a side cross-sectional view for explaining the second indexing operation of the roll medium.
As shown in FIG. 11 , the roller 16 is kept in contact with the roll medium 1 by the biasing force of the torsion spring (not shown) of the separation flapper 14 as in the first indexing operation of the roll medium 1 . Then, the roll medium 1 connected to a drive mechanism (not shown) is rotated forward in the arrow D direction. As the roll medium 1 rotates, the roller 16 in contact with the outer circumference of the roll medium 1 is driven to rotate.

FIG. 12 is a side cross-sectional view for explaining the third cueing operation of the roll medium.
As shown in FIG. 12, the roll medium 1 is forwardly rotated in the direction of arrow D by a driving motor (not shown). At this time, if the leading edge of the sheet of the roll medium 1 is likely to stick to the roll medium 1 due to curling of the roll, static electricity, or the like, the leading edge of the sheet is separated from the roll medium 1 by the roller 16 of the separation flapper 14 . The leading edge of the sheet separated from the roll medium 1 passes through the paper feeding path 17 by the weight of the sheet and is delivered to the conveying section 70 (FIG. 2) arranged above the feeding device 110 .
In the supply device 110 according to the present application, the top-finding operation was described using the drawer-type lower holding unit 40 as an example. Cue operation can be applied. That is, it is also applicable to a method in which the user directly inserts the roll medium 1 into the upper holding section 10 from obliquely above.
Although the sensor S in the second embodiment has been described as an example of a light reflection type sensor, a light transmission type sensor or the like may be used, and other detection methods can be used as long as they can detect a sheet.

As described above, according to the supply device 110 of this embodiment, the following effects can be obtained.
The feeding device 110 includes a light reflection type sensor S for detecting the presence or absence of a sheet on the arm portion 31 of the guide member 30 . The sensor S emits light in a direction intersecting a virtual line in the paper feed path 17 through which the sheet of the roll medium 1 passes. The sensor S detects the presence or absence of the sheet based on the presence or absence of reflection of light.
If the roll medium 1 is indexed using this configuration, the roll medium 1 can be easily set without worrying about the leading edge of the roll medium 1 .

DESCRIPTION OF SYMBOLS 1... Roll medium 2... Shaft 10... Upper stage holding part 17... Paper feed path 20... First rotating shaft 30... Guide member 31... Arm part 32... Swing part 33... First roller , 34, 35 ... second roller, 36 ... second rotation shaft, 37 ... torsion spring, 40 ... lower holding section, 100, 110 ... supply device, 150 ... recording section, 200 ... recording device.

Claims (11)

a holding unit that supports the shaft of the roll medium and holds the roll medium;
The roll medium held by the holding portion and stored in the supply device main body is pressed upward from below to come into contact with the roll medium, and is displaced according to the change in the outer diameter of the roll medium. a guide member;
The holding part is capable of being pulled out in a first direction from the supply device main body ,
The guide member abuts against the outer periphery of the roll medium when the pulled-out holding portion is housed in the supply device main body, and moves the holding portion against the force that is pressed upward from below. evacuated downward from the path,
The roll medium feeding device, wherein the shaft of the roll medium is connected to a drive mechanism to be drivable when the holding section is in the storage state. When the pull-out direction is upstream and the storage direction is downstream in the first direction,
2. The roll medium feeding device according to claim 1, wherein said guide member rotates around a first rotation shaft located on said downstream side in said first direction and retreats. The guide member includes an arm portion and a swing portion,
one end of the arm portion is located on the downstream side of the first rotating shaft;
3. The roll medium feeding device according to claim 2, wherein said swinging portion is provided on the other end side of said arm portion. The oscillating portion is
a first roller that contacts the roll medium in the housing process of the holding unit;
4. The roll medium supply device according to claim 3, further comprising at least one second roller that contacts the roll medium in the retracted holding portion. In the swinging part,
The first roller is arranged on the upstream side of the second roller, and contacts the roll medium at a position lower than the height of the shaft of the roll medium in the storing process of the holding unit. Item 5. The roll medium feeding device according to item 4. A second rotating shaft is provided in the swinging portion on the other end side of the arm portion,
The swinging portion is rotatably provided about the second rotating shaft as a fulcrum,
6. The roll medium feeding device according to claim 5. Two second rollers are provided,
The second rotation shaft is arranged between the two second rollers,
The two second rollers are in contact with the outer circumference of the roll medium in the storage state of the holding unit.
7. The roll medium feeding device according to claim 6. The swinging portion includes a biasing portion that presses downward the side on which the first roller is arranged with respect to the second rotating shaft,
The roll medium feeding device according to claim 7 . wherein the first roller is positioned below the second roller when not in contact with the roll media;
The roll medium feeding device according to any one of claims 4 to 8. A plurality of the holding parts are arranged in the vertical direction, and at least the holding parts below the uppermost stage can be drawn out.
The roll medium supply device according to any one of claims 1 to 9. a holding unit that supports the shaft of the roll medium and holds the roll medium;
The roll medium held by the holding portion and stored in the supply device main body is pressed upward from below to come into contact with the roll medium, and is displaced according to the change in the outer diameter of the roll medium. a guide member;
a feeding path through which the sheet pulled out from the roll medium passes;
a recording unit that records on the sheet pulled out from the roll medium;
The holding part is capable of being pulled out in a first direction from the supply device main body ,
The guide member abuts against the outer periphery of the roll medium when the pulled-out holding portion is accommodated in the supply device main body, and moves along the movement path of the holding portion against the force that is pressed upward from below. is evacuated downward from
The recording apparatus according to claim 1, wherein the shaft of the roll medium is connected to a driving mechanism and drivable when the holding section is in the storage state.

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