JP2021138502A - Sheet conveying device and recording device - Google Patents

Abstract

To provide a sheet conveying device capable of improving operability in setting of a cut sheet.SOLUTION: In a sheet conveying device for conveying a roll sheet, whose housing has an introduction port for introducing the roll sheet into the inside on an upper surface of the housing. Conveyance means is disposed in the housing and conveys the roll sheet. Support means rotatably supports the roll sheet such that a rotation axis of the roll sheet is located above the upper surface of the housing. A variable guide member has a guide part displaceable between a guide position where a cut sheet advancing from the introduction port to the conveyance means is guided and a retreat position to retreat from a conveyance passage of the roll sheet.SELECTED DRAWING: Figure 4

Description

The present invention relates to a sheet transfer device and a recording device.

A recording device that conveys and records a long recording medium typified by roll paper is known. Patent Document 1 discloses a printing device in which a paper feeding unit for roll paper is provided on the upper side of the main body of the device in consideration of operability at the time of setting the roll paper. Further, Patent Document 2 discloses a printing apparatus capable of feeding cut paper in addition to roll paper.

Japanese Patent No. 6394870 JP-A-2018-114648

In a device that can feed both roll paper and cut paper, if the roll paper paper feed section is provided on the upper side of the device body in consideration of operability when setting, it will be cut in consideration of the roll paper transport path. The placement of members that guide the paper may be restricted. Therefore, there is room for improvement in operability, especially when a short cut paper is set in the transport direction.

An object of the present invention is to improve operability when setting a cut sheet.

According to one aspect of the present invention, a sheet transport device for transporting a roll sheet, the housing having an introduction port for introducing the roll sheet inside is formed on the upper surface, and the housing is arranged in the housing. A transport means for transporting the roll sheet, a support means for rotatably supporting the roll sheet so that the rotation axis of the roll sheet is located above the upper surface, and a cut sheet from the introduction port to the transport means. Provided is a sheet transport device including a guide position for guiding the roll sheet and a variable guide member having a guide portion displaceable at a retracted position retracted from the transport path of the roll sheet.

According to the present invention, operability when setting a cut sheet can be improved.

It is a perspective view which shows typically the recording apparatus which concerns on one Embodiment. It is a perspective view which shows typically the internal structure of the recording apparatus of FIG. It is sectional drawing which shows the structural example of a cover part and a variable guide member. It is sectional drawing which shows the structural example of a cover part and a variable guide member. It is sectional drawing which shows the structural example of a cover part and a variable guide member. It is sectional drawing which shows the structural example of a cover part and a variable guide member. It is a figure which looked at the variable guide part from the direction of arrow A1 of FIG.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiment, not all of the plurality of features are essential to the invention, and the plurality of features may be arbitrarily combined. Further, in the attached drawings, the same or similar configurations are given the same reference numbers, and duplicate explanations are omitted.

In "recording", not only when significant information such as characters and figures is formed, but also images, patterns, patterns, etc. are widely formed on a recording medium or the medium is processed regardless of whether it is significant or unintentional. Cases are also included, and it does not matter whether or not it is manifested so that it can be visually perceived by humans. Further, in the present embodiment, sheet-shaped paper is assumed as the "recording medium", but cloth, plastic film, or the like may be used.

<First Embodiment>
<Overview of recording device>
FIG. 1 is a perspective view schematically showing a recording device 1 according to an embodiment. Further, FIG. 2 is a diagram schematically showing the internal structure of the recording device 1 of FIG. In addition, FIG. 1 and FIG. 2 omit the illustration of a part of the configuration. Further, in each figure, the X direction, the Y direction, and the Z direction indicate the depth direction (front-back direction), the width direction, and the vertical direction, respectively.

The recording device 1 pulls out the tip portion from the roll sheet R in which the sheet as a long recording medium is wound in a roll shape, and records an image in the pulled out area. Further, in the present embodiment, the recording device 1 can record an image not only on the roll sheet R but also on the cut sheet C. Hereinafter, when the roll sheet R and the cut sheet C are not distinguished, they may be collectively referred to as a sheet S. In the present embodiment, the recording device 1 includes a housing 2, a support portion 3, a transport unit 4, a variable guide member 5, a cover portion 6, a recording unit 7, and a cutter unit 8.

The housing 2 forms at least a part of the outer shape of the recording device 1, and houses the components of the recording device 1 such as the transfer unit 4 inside. An introduction port 210 for introducing the roll sheet R into the inside of the housing 2 is formed on the upper surface 21 of the housing 2. Further, the front surface 22 of the housing 2 is provided with a discharge port 220 from which the roll sheet R introduced from the introduction port 210 is discharged.

The support portion 3 rotatably supports the roll sheet R. More specifically, the support portion 3 rotatably supports the roll sheet R so that the rotation shaft R1 of the roll sheet R is located above the upper surface 21 of the housing 2. Further, in the present embodiment, the support portion 3 is provided on the rear side (-X side) opposite to the front side (+ X side) where the discharge port 220 of the housing 2 is provided.

The support portion 3 includes a spool 31 that is inserted into a hollow portion of the cylindrical roll sheet R to support the roll sheet R, a holding portion 32 that rotatably holds the spool 31, and a roll drive that rotationally drives the spool 31. Includes motors (not shown). For example, the spool 31 has a spool gear (not shown) at one end thereof, and the driving force of the roll drive motor (not shown) is transmitted to the spool gear via the drive gear (not shown) to spool. 31 rotates. The roll sheet R supported by the spool 31 is fed to the inside of the housing 2 by the rotation of the spool 31.

For example, when the user sets the roll sheet R on the support portion 3, the user moves both ends of the spool 31 toward the back side (−X direction) along the support surface 321 of the holding portion 32, thereby causing the roll sheet R. Is set in place. In the present embodiment, the roll sheet R is supported so that the rotation axis R1 of the roll sheet R is located above the upper surface 21, so that the user's hand operating from the front side of the recording device 1 reaches the holding portion 32. It becomes easier and the operability at the time of setting the roll sheet R is improved. In the present embodiment, the roll sheet R is supported by the support portion 3 so that the entire roll sheet R is located above the upper surface 21, but the roll sheet R is below the rotation axis R1. It may be supported by the support portion 3 so that a part of the portion is located below the upper surface 21.

The transport unit 4 is arranged in the housing and transports the roll sheet R. In the present embodiment, the transport unit 4 includes a plurality of roller pairs 41 to 44 separated in the transport direction of the roll sheet R. Each of the plurality of transfer roller pairs 41 to 44 includes a drive roller driven by a transfer motor (not shown) and a driven roller driven by the drive roller. Each drive roller may be driven by one transfer motor, or may be driven separately by a plurality of transfer motors corresponding to each drive roller. Further, the number of transport roller pairs included in the transport unit 4 is not limited.

Further, a guide member 9 that forms a carrying path for the seat S is arranged in the housing 2. The transport path P formed by the guide member 9 is a common transport path for the roll sheet R and the cut sheet C. The unwound portion of the roll sheet R enters the transport path P through the transport path PR. On the other hand, when the cut sheet C is supplied into the housing 2 by a user or the like, the cut sheet C enters the transport path P through the transport path PC.

The variable guide member 5 guides the supply of the cut sheet C from the introduction port 210 to the transport unit 4. Details will be described in <Structure example of variable guide member>.

The cover portion 6 covers a part of the upper surface of the housing 2. The cover portion 6 includes a cover 61 and a cover 62, and is provided so as to cover the introduction port 210 of the housing 2. The cover 61 covers the roll sheet R supported by the support portion 3 so as to be openable and closable. Further, the cover 62 covers a region 211 which is a cut sheet introduction region in which the cut sheet C can be introduced into the housing 2 with the cover 61 closed. In the present embodiment, the area 211 is an area on the front side (+ X side) of the introduction port 210.

In the present embodiment, the cover 61 is rotatably provided on the support portion 3, and the cover 62 is rotatably provided on the cover 61. However, it is also possible to adopt a configuration in which the cover 61 or the cover 62 is provided so as to be rotatable or displaceable with respect to the housing 2. Further, the cover 62 may be provided so as to be rotatable with respect to the support portion 3. Further, the shape of the cover portion 6 is an example, and other configurations can be adopted. For example, the cover portion 6 may have an arc-shaped cross section.

The recording unit 7 can record an image on the sheet S. The recording unit 7 includes a recording head 71 that ejects ink to the sheet S. In the present embodiment, the recording head 71 is a line-type recording head in which an ejection port for ejecting ink is provided in a region corresponding to the width of the sheet S. However, the recording unit 7 may have a serial type recording head and a carriage for moving the serial type recording head, or may record an image on a recording medium by a method other than the inkjet method. Further, the recording unit 7 includes a platen 72, and these are arranged so as to sandwich the transport path P of the sheet S between the recording head 71 and the platen 72. In one embodiment, the platen 72 may be a suction platen that adsorbs and holds the sheet S.

The cutter unit 8 is provided on the downstream side of the recording unit 7 in the transport direction, is pulled out from the roll sheet R, and cuts the sheet S for which recording has been completed.

In the present embodiment, the recording device 1 includes a sheet transfer device that conveys the roll sheet R when viewed from a certain side surface. Further, in the present embodiment, the recording device 1 transports the roll sheet R and the cut sheet C by a common transport unit 4. Therefore, the transport roller pair 41 on the upstream side of the transport unit 4 in the transport direction is provided below the introduction port 210 and on the discharge port 220 side (downstream side in the transport direction) of the region 211 of the introduction port 210. Furthermore, since the seat S needs to pass under the recording head 71, each roller pair of the transport unit 4 is provided under the recording head 71.

Therefore, the distance between the region 211 of the introduction port 210 and the transport roller pair 41 on the upstream side in the transport direction of the transport unit 4 becomes large with respect to the length of the cut sheet C, and the cut sheet C may be difficult to set. be. For example, when the length of the cut sheet C in the transport direction is shorter than the distance from the introduction port 210 to the transport roller pair 41, the user can use the cut sheet C from the cut sheet C in a state where the tip of the cut sheet C does not reach the transport roller pair 41. You need to release your hand and set the seat. Therefore, the cut sheet C may be displaced in the width direction or may be set diagonally with respect to the transport direction.

In such a case, if a guide along the transport path PC of the cut sheet C is provided, the user can easily set the cut sheet C along the guide. However, providing a guide member for guiding the cut sheet C between the region 211 and the transport roller pair may be limited in relation to the transport path PR of the roll sheet R. For example, a fixed guide member for the cut sheet C or the like cannot be provided at a position that interferes with the transport path PR. In the present embodiment, since the roll sheet R is arranged behind the set position of the cut sheet C, if the guide for the cut sheet C is extended to the vicinity of the introduction port 210, it interferes with the transport path PR of the roll sheet R. Will end up. Therefore, in this embodiment, the variable guide member 5 is adopted. An example of the configuration will be described below.

<Structure example of cover and variable guide member>
FIG. 3 is a cross-sectional view showing a configuration example of the cover portion 6 and the variable guide member 5, and schematically shows a state in which the cover 61 and the cover 62 are closed. In the present embodiment, the cover 61 is rotatably provided with respect to the support portion 3 by supporting the rotation shaft member 611 of the support portion 3. Further, the cover 62 is rotatably provided with respect to the cover 61 by supporting the rotation shaft member 621 on the cover 61. By opening the cover 61, the user can set the roll sheet R on the support portion 3 and perform jam processing and the like. Further, the user can supply the cut sheet C to the transport unit 4 in the housing 2 by opening the cover 62. Further, in the present embodiment, the variable guide member 5 that is displaced in conjunction with the opening operation of the cover 62 is provided.

The variable guide member 5 includes a guide portion 51 that guides the cut sheet C, and a displacement portion 52 that displaces the guide portion 51 between the guide position and the retracted position.

The guide portion 51 guides the cut sheet C to the transfer roller pair 41 at the guide position. The guide portion 51 has a guide surface 511 extending in a width direction intersecting the cut sheet C transport direction, and guides the cut sheet C by the guide surface 511. The guide surface 511 may have a width similar to that of the cover 62, or may have a width capable of guiding a cut sheet C of a predetermined size such as A3 and A4.

The displacement portion 52 displaces the guide portion 51 between the guide position and the retracted position. In the present embodiment, the guide position is a position where the guide portion 51 can guide the cut sheet C (FIG. 4), and the retract position is a position where the guide portion 51 retracts from the transport path PR of the roll sheet R (FIG. 3). be.

In the present embodiment, the displacement portion 52 uses a rack and pinion mechanism to convert the rotation of the cover 62 into a linear motion to displace the guide portion 51. The displacement portion 52 includes two gears 521 and 522 and a rack 523. The gear 521 is configured to mesh with a gear (not shown) provided on the rotating shaft member 621 of the cover 62 and the gear 522, whereby the rotational force of the cover 62 is transmitted to the gear 522. The gear 522 transmits the rotational force transmitted from the gear 521 to the rack 523. The rack 523 converts the rotational force transmitted from the gear 522 into a linear motion to displace the guide portion 51. The configuration of the displacement portion 52 is an example, and a configuration in which the guide portion 51 can be displaced can be appropriately adopted.

<Operation of variable guide member>
The operation of the variable guide member 5 will be described with reference to FIGS. 3 and 4. FIG. 4 is a cross-sectional view showing a configuration example of the cover portion 6 and the variable guide member 5, and schematically shows a state in which the cover 61 is closed and the cover 62 is opened.

In the state of FIG. 3, that is, in the state where the cover 62 is closed, the guide portion 51 is located at the retracted position. In the present embodiment, the evacuation position is a position above the introduction port 210. However, the retracting position may be a position where the guide portion 51 enters the inside of the housing 2 (a position below the introduction port 210) within a range in which the guide portion 51 does not interfere with the transport path PR of the roll sheet R. ..

When the cover 62 is opened, the cover 62 rotates clockwise around the rotation shaft member 621 when viewed in the directions of FIGS. 3 and 4. Along with this, the gear 521 rotates counterclockwise, the gear 522 rotates clockwise, and the rack 523 moves downward. That is, in the present embodiment, the rotational force of the cover 62 is converted into the downward movement of the guide portion 51 by transmitting the rotation of the cover 62 to the rack 523 via the two gears 521 and 522. When the cover 62 is closed, the guide portion 51 moves upward by rotating the cover 62 counterclockwise when viewed in the directions of FIGS. 3 and 4, contrary to the case of opening the cover 62.

When the cover 62 is opened, the guide portion 51 is displaced to the guide position as shown in FIG. In the present embodiment, the guide portion 51 is located between the region 211 of the introduction port 210 and the transfer roller pair 41 at the guide position. More specifically, the guide portion 51 guides the transport of the cut sheet C between the region 211 and the transport path P formed by the guide member 9 at the guide position. Further, when the guide portion 51 is located at the guide position, the transport path PC of the cut sheet C is formed.

As described above, in the present embodiment, the variable guide member 5 guides the cut sheet C between the introduction port 210 and the transfer roller pair 41. Thereby, the operability when setting the cut sheet C can be improved. Further, since the variable guide member 5 is configured to be displaceable between the retracted position and the guide position, the transport path of the roll sheet R is secured when the roll sheet R is used, and the sheet is used when the cut sheet C is used. The operability of the set can be improved. On the other hand, when the roll sheet R is used, the guide portion 51 is retracted to the retracted position, so that interference between the roll sheet R and the guide portion 51 can be avoided.

Further, in the present embodiment, since the cut sheet C can be set by opening the cover 62, it is not necessary to open the relatively large cover 61 when using the cut sheet C, and the operation load on the user can be reduced. can. Further, since the guide portion 51 is displaced from the retracted position to the guide position in conjunction with the opening of the cover 62, the time and effort of the user's operation is reduced. Therefore, the operability at the time of setting the cut sheet C can be further improved. When the user finishes using the cut sheet C and closes the cover 62, the guide unit 51 retracts to the retracted position in conjunction with the closing of the cover 62. Therefore, when the roll sheet R is used after that, it is not necessary to perform an operation such as cleaning up the guide portion 51, and the time and effort of the user's operation can be reduced.

Further, when viewed from a certain side surface, in the state of FIG. 4, the cover portion 6, that is, the cover 61 and the cover 62 function as guides for the cut sheet above the housing 2. Then, it can be said that the guide portion 51 is displaced so as to extend from the side of the cover portion 6 that functions as a guide to the side of the guide member 9. Furthermore, since the recording device 1 of the present embodiment cannot provide a fixed guide member or the like for the cut sheet C at a position that interferes with the transport path PR, the cover portion 6 that functions as a guide and the guide member 9 There will be a gap between them. However, in the present embodiment, when the cover 62 is opened, the guide portion 51 is stretched so as to fill the gap, so that a guide having a small gap is formed as a whole. As a result, the operability when the user sets the cut sheet C is improved.

<Second Embodiment>
Hereinafter, the recording device according to the second embodiment will be described. The description overlapping with the first embodiment will be omitted. In the first embodiment, the cover 62 and the variable guide member 5 are provided on the side of the cover 61. In the second embodiment, the cover 562 and the variable guide member 505 are provided on the side of the housing 2.

FIG. 5 is a cross-sectional view showing a configuration example of the cover 506 and the variable guide member 505 according to the embodiment, and schematically shows a state in which the cover 561 and the cover 562 are closed. Further, FIG. 6 is a cross-sectional view showing a configuration example of the cover 506 and the variable guide member 505 according to the embodiment, and schematically shows a state in which the cover 561 and the cover 562 are opened.

In this embodiment, the cover 562 is rotatably provided with respect to the housing 2 between the closed position shown in FIG. 5 and the open position shown in FIG. Further, the variable guide member 505 is provided so as to be extendable downward from the cover 562 when the cover 562 is in the open position. FIG. 7 is a view of the variable guide member 505 as viewed from the direction of arrow A1 in FIG. The variable guide member 505 is provided so as to be slidable in the direction of the surface formed by the cover 562. In the present embodiment, the variable guide member 505 is provided with convex portions 5051 at both ends in the width direction, and the convex portions 5051 move along a sliding groove (not shown) provided in the cover 562 to cause the variable guide member 505. Slides.

According to this embodiment, the variable guide member 505 can be provided with a simpler configuration. Further, when the cut sheet C is sufficiently long in the transport direction, the cut sheet C can be performed without operating the variable guide member 505, so that the user's labor can be reduced.

The invention is not limited to the above embodiments, and various modifications and modifications can be made without departing from the spirit and scope of the invention. Therefore, a claim is attached to make the scope of the invention public.

1 Recording device, 4 Conveying unit, 5 Variable guide member, 6 Cover

Claims (9)

A sheet transfer device that conveys roll sheets.
A housing having an introduction port formed on the upper surface for introducing the roll sheet inside, and
A transport means arranged in the housing and transporting the roll sheet,
Supporting means for rotatably supporting the roll sheet so that the rotation axis of the roll sheet is located above the upper surface.
It is provided with a guide position for guiding the cut sheet from the introduction port to the transport means, and a variable guide member having a guide portion displaceable to a retract position for retracting from the transport path of the roll sheet.
Sheet transfer device. The sheet transport device according to claim 1.
A first cover that covers the roll sheet supported by the support means so as to be openable and closable is further provided.
The introduction port includes a cut sheet introduction area in which the cut sheet can be introduced into the housing with the first cover closed.
Sheet transfer device. The sheet transport device according to claim 2.
A second cover that covers the cut sheet introduction area so as to be openable and closable is further provided.
The variable guide member is provided on the first cover.
Sheet transfer device. The sheet transport device according to claim 3, wherein the guide portion is displaced from the retracted position to the guide position in conjunction with the opening of the second cover in the closed state. The sheet transfer device according to claim 3 or 4, wherein the second cover is provided on the first cover. The sheet transporting device according to claim 3 or 4, wherein the second cover is provided in the housing. The sheet transport device according to any one of claims 1 to 6.
The housing is further provided with a discharge port on the downstream side in the transport direction of the roll sheet.
The support means is provided on the side opposite to the side where the discharge port is provided in the transport direction.
The cut sheet is guided from the downstream side in the transport direction to the transport means with respect to the roll sheet supported by the support means.
Sheet transfer device. A recording device capable of recording an image on a roll sheet by a recording means.
A housing having an introduction port formed on the upper surface for introducing the roll sheet inside, and
A transport means arranged in the housing and transporting the roll sheet,
Supporting means for rotatably supporting the roll sheet so that the rotation axis of the roll sheet is located above the upper surface.
It is provided with a guide position for guiding the cut sheet from the introduction port to the transport means, and a guide member displaceable at a retract position for retracting from the transport path of the roll sheet.
Recording device. A recording device that records images on a roll sheet.
A housing in which an introduction port for introducing the roll sheet inside is formed on the upper surface, and a discharge port for discharging the roll sheet introduced from the introduction port is formed on the front surface.
A recording means that is arranged inside the housing and ejects ink to the roll sheet introduced from the introduction port to record an image.
A transport means for transporting the roll sheet and
Supporting means for rotatably supporting the roll sheet so that the rotation axis of the roll sheet is located above the upper surface.
A guide position for guiding the cut sheet introduced into the housing from the downstream side in the transport direction of the roll sheet to the inside of the housing via the introduction port with respect to the roll sheet supported by the support means. A retractable position for retracting the roll sheet from the transport path and a guide member displaceable in the roll sheet are provided.
Recording device.

Images