JP2018140851A - Sheet storage device and printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet storage device which can surely store a sheet in a storage section regardless of the state of the sheet, and a printing device having the sheet storage device.SOLUTION: A sheet storage device includes: a storage section storing a sheet discharged from a discharge port with the use of a flexible sheet-like receptor; and a flapper which takes a first state of supporting a tip of the sheet moving down by its weight from the discharge port due to the discharge and a second state of not supporting the tip of the sheet, where when the flapper is in the first state and a storage space of the storage section is below the flapper, the sheet discharged from the discharge port is configured so that a subsequent portion of the sheet is hung down in a loop shape in the storage space while the tip is supported by the flapper.SELECTED DRAWING: Figure 17

Description

  The present invention relates to a sheet storage device that stores a sheet such as a discharged print medium, and a printing apparatus including the sheet storage device.

  Patent Document 1 discloses a large-format inkjet printing apparatus that prints on a sheet unrolled from a roll. The printed sheet is discharged to the storage unit.

Japanese Patent Laying-Open No. 2015-189522

  In the printing apparatus disclosed in Patent Document 1, when a receiving configuration is adopted in which the entire sheet is accommodated in a space formed in the accommodating portion, the sheet is accommodated in the accommodating portion by using a curl of the sheet. ing. For this reason, a sheet | seat will be accommodated in the state curled in the accommodating part. However, the sheet in a curled state becomes bulky, and there are cases where many sheets cannot be accommodated in the accommodating portion. In addition, when the curl of the sheet is weak or the sheet is long, the sheet may not be rounded and the sheet may not be accommodated in the space of the accommodation unit.

  The present invention has been made in view of the above problems, and provides a sheet storage device that can reliably store a sheet in a storage portion regardless of the state of the sheet, and a printing apparatus including the sheet storage device. Objective.

  In order to achieve the above object, a sheet storage device according to the present invention includes a storage unit that stores a sheet discharged from a discharge port using a flexible sheet-shaped receiver, and the discharge port that is discharged. And a flapper capable of taking a second state in which the leading end of the sheet descends due to its own weight and a second state in which the sheet cannot be supported, wherein the flapper is in the first state. In addition, when the storage space of the storage portion is below the flapper, the sheet discharged from the discharge port keeps the leading end portion supported by the flapper, while the subsequent portion of the sheet is not in the storage space. It is characterized by hanging down in a loop.

  According to the present invention, the loop-shaped sheet hangs down by the flapper and is dropped, so that the sheet is accommodated in a gently folded state in the accommodation portion. For this reason, a sheet | seat can be reliably accommodated in an accommodating part.

1A and 1B are a perspective view and a side view of a printing apparatus according to an embodiment of the present invention. It is the (a) perspective view and (b) front view of the printing apparatus of FIG. 1 which abbreviate | omitted the receiver. It is a perspective view explaining the 1st sheet butting part of a sheet storage device. It is a perspective view explaining the receptor holding means of the sheet storage device. It is a perspective view explaining the receptor winding means of the sheet storage device. It is a figure explaining the clutch mechanism of a receptor winding means. It is a perspective view explaining a guide flapper part. It is a perspective view which shows the state which (a) several flappers of the guide flapper part closed, and (b) a part of several flappers opened. (A) The perspective view explaining the state which the flapper of the guide flapper part opened, (b) The perspective view explaining the state which the flapper closed, (c) The perspective view explaining the state where the slide plate was raised. . It is a partial expanded side view explaining a guide flapper part. It is (a) perspective view and (b) side view of the printing apparatus which concerns on a 1st receiving form. It is (a) perspective view and (b) side view of the printing apparatus which concerns on 1st Example of a 2nd receiving form. It is (a) perspective view and (b) side view of the printing apparatus which concerns on 2nd Example of a 2nd receiving form. It is a perspective view explaining the receptor folding means of the printing apparatus of FIG. It is a side view of the printing apparatus which concerns on 3rd Example of a 2nd receiving form. It is (a) perspective view and (b) side view of the printing apparatus which concerns on a 3rd receiving form. It is (a) perspective view and (b) side view of the printing apparatus which concerns on a 4th receiving form. It is a figure which shows the experimental data for determining the length of the area formed in the printing apparatus which concerns on a 4th receiving form from a flapper upper surface to a guide upper surface. It is (a) side view, (b) top view, and (c) front view of the printing apparatus which concerns on 1st Example of a 5th receiving form. FIG. 20A is a side view and FIG. 20B is a top view for explaining the behavior of a sheet smaller than a predetermined width in the printing apparatus of FIG. 19. It is (a) side view, (b) top view, and (c) front view of the printing apparatus which concerns on 2nd Example of a 5th receiving form. It is (a) side view, (b) top view, and (c) front view of the printing apparatus which concerns on 3rd Example of a 5th receiving form. It is (a) top view of another printing apparatus which concerns on 3rd Example of a 5th receiving form, and (b) front view. It is a perspective view of another printing apparatus which concerns on one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1A is a perspective view and FIG. 1B is a side view of a printing apparatus 10 according to an embodiment of the present invention. FIG. 2 shows a perspective view and (b) a front view in which the receiver 40 of the printing apparatus 10 is omitted. First, a schematic configuration of a printing apparatus 10 according to an embodiment of the present invention will be described with reference to FIGS.

  The printing apparatus 10 includes a main body 1, leg portions 2 that support the main body 1, and a seat basket 3 (sheet storage device) attached to the leg portions 2. The main body 1 includes roll holders 160 and 161 that rotatably hold a roll formed by winding a long sheet around a paper tube. The rolls held by the roll holding units 160 and 161 are unwound and supplied as a sheet to the printing unit 5 via a feeding mechanism (not shown). The roll holding unit 161 (second roll holding unit) is located below the roll holding unit 160 (first roll holding unit). That is, the roll holding units 160 and 161 are arranged side by side in the vertical direction. Note that the roll holding unit 161 positioned below may have a function capable of winding a sheet supplied from the roll holding unit 160 and printed.

  The main body 1 also includes a printing unit 5 that prints the sheet W, which is a printing medium unwound from the rolls accommodated in the roll holding units 160 and 161, by the conveyance mechanism. . A cutter 6 is provided between printing by the printing unit 5 and ejection from the ejection port 1a, and the printed sheet is cut by the cutter 6 at a predetermined position. Further, the main body 1 includes a discharge port 1 a for discharging the printed sheet W and a discharge port guide 1 b for guiding the discharged sheet to the sheet basket 3. The sheet that is gradually discharged along with the printing operation hangs by changing its traveling direction downward due to its own weight after passing through the discharge port guide 1b. The roll holding portions 160 and 161 are positioned below the discharge port 1a and the discharge port guide 1b, so that the two roll holding portions 160 and 161 are approximately at the center in the height direction of the printing apparatus 10. Will be provided.

  The roll holding units 160 and 161 are provided on the front side of the printing apparatus 10 where the discharge port 1a is opened. Thereby, for example, after the sheet basket 3 is moved, the casing of the main body 1 can be opened from the front side of the printing apparatus and the roll can be set on the roll holding unit 160 provided inside. Further, the roll can be set on the roll holding unit 161 from the front side of the printing apparatus. Accordingly, the user can perform the roll replacement work from the front side without moving the printing apparatus, and the burden on the user due to the work can be reduced.

  The main body 1 also has an operation unit 4, and various commands such as sheet size designation and online / offline switching can be input by the user operating various switches provided on the operation unit 4. . Although the present embodiment will be described on the assumption of a two-stage roll configuration including two roll holding units, the present invention is not limited thereto, and can also be applied to a printing apparatus having three or more roll holding units. . Moreover, when it has three or more roll holding parts, at least two roll holding parts 160 and 161 are provided.

  The sheet basket 3 accommodates a sheet cut by the cutter 6 after printing, and has a sheet-like receiver 40 made of a thin, flat and flexible cloth or plastic. One end of the receiver 40 is held by the top rod 20 by a receiver holding means 100 described later, and the other end is held by the rear rod 30. That is, the top rod 20 and the rear rod 30 function as holding members that hold both ends of the receiver 40. Specifically, the top rod 20 holds the end of the receiver 40 on the downstream side (the side away from the main body 1) in the sheet discharge direction as viewed from the discharge port 1a, and the rear rod 30 is the upstream side in the discharge direction. Hold the end of the receiver 40 on the side close to the body 1. Both ends of the top rod 20 are connected to each of the two side rods 11 by connecting means 12. The side rod 11 is held by the side rod angle holding portion 60 via the side rod support portion 61. The side rod angle holding part 60 is attached to the leg part 2. The intermediate rod 121 is positioned by the intermediate rod positioning member 120 attached to the side rod 11 and supports the receiver 40. That is, the intermediate rod 121 is movable and functions as a support member that supports the intermediate portion of the receiver 40.

  The seat basket 3 includes a plurality of sheet abutting members 170 as shown in FIGS. 2 (a) and 2 (b). The plurality of sheet abutting members 170 are provided on the support rod 171 provided in parallel with the rear rod 30 in the sheet width direction (direction intersecting (orthogonal) with the sheet discharging direction). FIG. 3 is a perspective view for explaining the first sheet abutting portion of the seat basket 3, and is an enlarged view of a broken line portion III in FIG. As illustrated, the sheet abutting member 170 is provided on a support rod 171 provided in parallel with the rear rod 30 held by the rear rod holding member 31. The support rod 171 is held by the support rod holding member 172 and is installed on the side rod angle holding unit 60. The sheet abutting member 170 constitutes a first sheet abutting portion that receives the printed sheet guided by the receiver 40. Note that such a sheet abutting member 170 is located, for example, on the back side (rear side) of the printing apparatus with respect to the roll holding unit 161. That is, the seat basket 3 is formed with an accommodation portion that can accommodate a sheet so as to include an area located below the roll holding portion 161 in the gravity direction. Thereby, the printing apparatus 10 can utilize the space below the roll holding portion 161 as a part of the accommodating portion, and is configured to be compact in the depth direction (front-rear direction).

  FIG. 4 is a perspective view illustrating the receiver holding means 100 of the seat basket 3. The receiver holding means 100 is constituted by a fixing member 101 that attaches the receiver 40 to the top rod 20. The top rod 20 has three holes 20a, and the receiver 40 also has holes (not shown) at positions corresponding to these holes 20a. In the state where the receiver 40 covers the periphery of the top rod 20, the fixing member 101 inserts a shaft (not shown) into the hole 20 a of the top rod 20 so as to sandwich the receiver 40. The receiver 40 is mounted so as not to rotate. Further, the receiver 40 is fixed in a state in which a receiver extra length 102 that covers the attached fixing member 101 is provided. According to such a configuration, in addition to being able to fix the receiver 40 to the top rod 20, it is possible to prevent a scratch on the printed image that occurs when the print surface of the sheet comes into direct contact with the fixing member 101 during paper discharge.

  FIG. 5 is a perspective view illustrating the receiver winding means 110 of the seat basket 3 and is a partially enlarged view of the end portion of the top rod 20. The receiver winding means 110 changes the length of the receiver 40 by winding the receiver 40. The receiver winding means 110 includes a rod engaging member 111, a rotary clutch 112, a fixed clutch 113, a compression spring 116, a release button 115, and a housing 114. The rod engaging member 111 is attached to the top rod 20 so as not to rotate, and the rotary clutch 112 is rotatably engaged with the convex portion 111a of the rod engaging member 111. The fixed clutch 113 has a similar serrated portion 113a coaxially at a position facing the serrated portion 112a of the rotary clutch 112. The compression spring 116 biases the rotary clutch 112 toward the fixed clutch 113 side. The release button 115 makes it possible to push the rotary clutch 112 toward the rod engaging member 111 against the compression spring 116. When the user presses the release button 115, the rotary clutch 112 and the fixed clutch 113 can be separated. The housing 114 incorporates the fixed clutch 113 in a non-rotatable manner so that the rod engaging member 111 can rotate. Further, the housing 114 is fixed to the side rod 11 in a state where the rotation of the top rod 20 around the central axis direction is restricted by the joint member 13 described later. Further, as described above, the rotary clutch 112 and the fixed clutch 113 constitute a clutch mechanism of the receiver winding means.

  FIG. 6 is a view for explaining the clutch mechanism of the receiver winding means 110 and is a partial sectional view of the receiver winding means 110. In FIG. 6, the serrated portion 113a of the fixed clutch 113 and the serrated portion 112a of the rotary clutch 112 are in mesh with each other. When the top rod 20 is rotated in the Y direction from this state, the serrated portion 112 a of the rotary clutch 112 climbs the tapered surface 140 of the serrated portion 113 a of the fixed clutch 113 against the compression spring 116. That is, the rotary clutch 112 moves in a direction away from the fixed clutch 113 so that the engagement of the serrated portion is released. As a result, the receiver 40 attached to the top rod 20 by the receiver holding means 100 can be wound up. Further, since the stopper surfaces 150 of the serrated portions 112a and 113a mesh with each other, the top rod 20 cannot rotate in the reverse direction of the Y direction. That is, the receiver 40 is locked in the wound state.

  Thus, even if the discharged sheet is placed on the receiver 40, the receiver 40 wound up by its weight does not return. Therefore, the user can adjust the length of the receiver 40 to an arbitrary length and use it for paper discharge accommodation. The winding lock of the receiver 40 can be released by pressing the release button 115 for releasing the receiver 40 wound around the top rod 20 and moving the rotary clutch 112 away from the fixed clutch 113.

  Here, the rotation in the direction indicated by the arrow Y in FIG. 5 is defined as the winding direction. However, by changing the configuration of the tapered surface 140 and the stopper surface 150 of the serrated portion of the clutch, the receiver is wound in the reverse direction, It is good also as a structure which cannot rotate. Or the structure which can be wound up in both directions is also possible. Furthermore, the operation load can be adjusted by changing the set value of the compression spring. Furthermore, the receiver winding means 110 may be provided not only on the top rod 20 side but also on the rear rod 30 side, or on both of them.

  Further, the seat basket 3 has a guide flapper portion 180. Here, the details of the guide flapper unit 180 will be described with reference to FIGS. Note that a part of the configuration of the seat basket 3 is omitted for easy understanding of the configuration. FIG. 7 is a perspective view for explaining the guide flapper portion 180. The guide flapper unit 180 includes a plurality of flappers 183, a plurality of guides 184 to which each of the plurality of flappers 183 can be opened and closed, and a guide rod 182 that holds the plurality of guides 184. The guide 184 includes a slide plate 186, which will be described later, and functions as a guide portion that guides the leading edge of the sheet. Further, the guide 184 also functions as a support portion (first support portion) that supports the flapper 183. In addition, hook members 181 are provided at both ends of the guide rod 182 (rod). Since each hook member 181 is configured to be attached to the two hole portions 1 c of the main body 1, the guide flapper portion 180 can be attached to and detached from the main body 1.

  By doing so, the replacement work of the rolls set in the roll holding units 160 and 161 is facilitated. 7 shows four guides 184 each having a flapper 183 attached thereto, the number of guides 184 is not limited to this. The guide flapper unit 180 may have one or a plurality of guides 184 depending on a receiving form described later.

  FIG. 8 is a perspective view showing a state in which the guide flapper portion 180 has (a) a plurality of flappers 183 closed and (b) a state in which some of the plurality of flappers 183 are opened. The state in which the flapper 183 is open means that a lateral concave portion formed in a guide 184 described later is opened, and the front end portion (region having a predetermined length from the front end) of the sheet discharged from the discharge port 1a. This represents a state (first state) in which the flapper 183 is located at a position where it can be supported. In addition, the state in which the flapper 183 is closed is a state in which the concave portion is covered by the flapper 183 and the flapper 183 is positioned at a position where the leading end portion of the sheet discharged from the discharge port 1a cannot be supported (second state). ).

  The plurality of guides 184 to which each of the plurality of flappers 183 is attached are arranged side by side in the sheet width direction, and the plurality of flappers 183 can be individually opened and closed independently in the arrow U direction. The plurality of flappers 183 and the plurality of guides 184 serve as receiving portions that receive the printed sheet. Details of the receiving portion will be described later. By doing so, the handle member connected to the plurality of receiving members as in Patent Document 1 is not necessary, and the plurality of flappers 183 can be operated with a smaller force than Patent Document 1.

  FIGS. 9A to 9C are enlarged views showing the flapper 183 and the guide 184 of the guide flapper portion 180. FIG. Specifically, FIG. 9 is a perspective view for explaining a state in which the flapper 183 of the guide flapper portion 180 is opened, (b) a perspective view for explaining a state in which the flapper 183 is closed, and (c) a slide plate. It is a perspective view explaining the state where 186 was raised.

  The guide 184 is mounted on the guide rod 182 and forms a guide shape so as to be concentric with the outer periphery of the roll 162 set on the roll holding portion 161. Since the handle member as in Patent Document 1 is not provided, the guide flapper unit 180 can be provided between the roll holding unit 160 and the roll holding unit 161 and closer to the roll holding units 160 and 161. . Space saving can be achieved by such a configuration. Further, since the guide 184 can be disposed on the deeper side of the main body 1, even when using a sheet with a curled tip in a direction approaching the roll-specific main body 1, the front end of the sheet is guided straight to the seat basket 3. be able to. That is, according to the present embodiment, the leading end of the sheet can be more reliably guided to the seat basket 3.

  In the state where the flapper 183 is opened as shown in FIG. 9A, the leading end of the sheet guide 185 is in contact with the main body 1. In this way, the sheet guide 185 can serve as a guide for delivering the leading edge of the sheet during discharge from the main body 1 side to the guide 184 side. On the other hand, when the flapper 183 is closed as shown in FIG. 9B, the tip end portion 183 a of the flapper 183 is in contact with the main body 1. Therefore, in this state, the flapper 183 can serve as a guide for the leading edge of the sheet. In addition, a protrusion shape (rib) is formed on both surfaces of the flapper 183. By doing so, the frictional resistance between the flapper 183 and the sheet can be reduced, and further the weight of the flapper 183 can be reduced. By reducing the weight of the flapper 183, the flapper 183 can be operated with a smaller force.

  The rotation center 189 of the flapper 183 is provided below the flapper 183 in the gravity direction. Then, by the rotation center 189, the flapper 183 is configured such that the front end 183 a of the flapper 183 is close to (abuts) the main body 1 in the closed state, and the front end 183 a is separated from the main body 1 in the open state. Yes. Further, the rotation center 189 is below the rotation center of the roll in the roll holding unit 160 when the guide flapper unit 180 is disposed between the roll holding units 160 and 161, and in the roll holding unit 161. It will be located above the rotation center of the roll. Therefore, in the printing apparatus 10, the discharge port 1 a, the roll rotation center in the roll holding unit 160, the rotation center 189 of the flapper 183, and the roll rotation center in the roll holding unit 161 are arranged in this order in the gravity direction. That is, the discharge port 1a, the roll rotation center in the roll holding unit 160, the rotation center 189 of the flapper 183, and the roll rotation center in the roll holding unit 161 are arranged in order of decreasing height. Further, the rotation center 189 of the flapper 183 is provided at a position such that the tip 183 a of the flapper 183 is closer to the main body 1 than the rotation center 189 when the flapper 183 is closed.

  In this way, in the open / close configuration of the flapper 183, the flapper 183 can be supported only by providing an abutting surface for positioning when the flapper 183 is opened around the rotation shaft, and the configuration can be simplified. It is. On the other hand, the rotation center of the receiving member in Patent Document 1 is provided above the receiving member in the gravity direction. Therefore, when the receiving member is maintained in a substantially horizontal state, a complicated structure such as a lock mechanism is required. Thus, according to the present embodiment, the advantage of simplifying the opening / closing configuration of the flapper 183 can be obtained.

  By simplifying the opening / closing configuration of the flapper 183 in this way, the member that receives the discharged sheet is downsized, and the guide 184 is arranged in a small space between the two roll holding portions 160 and 161. . Further, the plurality of flappers 183 can be opened and closed independently. As a result, the seat basket 3 can have a simple configuration as compared with the medium receiving portion of Patent Document 1. Further, the roll holding units 160 and 161 are provided at substantially the center position in the height direction on the front side of the printing apparatus 10. For this reason, in the printing apparatus 10, the replacement work of the roll becomes relatively easy, and the center of gravity is lowered and can be stably installed. Although details will be described later, by changing the arrangement position or number of the guides 184 provided with the flapper 183, sheets of various sizes can be sorted and stored.

  In addition, the guide 184 has a slide plate 186 (sliding member) that can slide up and down within the guide 184 at the lower end. The slide plate 186 can be operated independently in the same manner as the flapper 183. 9A and 9B show a state in which the slide plate 186 is pulled down from the guide 184, and FIG. 9C shows a state in which the slide plate 186 is lifted back into the guide 184. The slide plate 186 is used to form a seat receiving portion, and details thereof will be described later. The guide 184 may be configured to be attachable to and detachable from the guide rod 182 in order to selectively change the flapper 183 in the sheet width direction, or may be configured to be movable along the width direction. Also good.

  FIG. 10 is a partially enlarged side view of the guide flapper portion 180 in a state where the flapper 183 is opened. The guide 184 is formed with a lateral recess (regulation portion) including a first restriction surface 184a, a second restriction surface 184b, and a third restriction surface 184c. In addition, a protrusion-shaped protrusion 184d (that is, a protrusion) is provided in the vicinity of the opening of the upper surface (second regulating surface 184b) of the recess. The third regulating surface 184c facing the second regulating surface 184b is formed to have a downward slope from one end upstream in the paper discharge direction to the other end on the opposite side and a curvature concentric with the roll holding portion 161. Yes. Further, the guide 184 has a gap V1 between the tip of the convex portion 184d and the third regulating surface 184c (that is, the lower surface of the concave portion) in the vertical downward direction of the convex portion 184d. The gap V1 is the thickness when the maximum number of sheets are placed and the maximum curl amount at the front end of the sheet, that is, the sheet that warps to the maximum vertically upward from the bottom surface of the sheet when the sheet is suspended vertically downward. It is formed so as to be larger than the sum of the distance to the tip.

  In one embodiment, the maximum number of sheets to be loaded is 100 sheets of plain paper wound around a paper tube having a large diameter of 2 inches (50.8 mm) and having a large amount of curl at the front end of the sheet. It is set. The thickness of one plain paper is 0.1 mm, and the thickness when 100 sheets are loaded is 10 mm (= 100 × 0.1). In addition, the maximum curl amount at the front end of the sheet (that is, the distance from the lowermost surface of the portion near the paper tube at the beginning of winding of the sheet to the vertically downward direction to the front end of the sheet that has warped vertically upward) Is 10 mm. Therefore, in one Example, the space | interval of the clearance gap V1 is 20 mm (= 100 * 0.1 + 10 mm) or more. The second regulating surface 184b is formed such that the length in the paper discharge direction (that is, the sheet discharge direction and the depth direction of the recess) is smaller than the paper tube radius (25.4 mm). The height in the vertical direction of the convex portion 184d (that is, the amount of protrusion from the upper surface of the concave portion) is formed to be larger than the maximum thickness of the sheet assumed to be used. It is formed to be thicker than 0.1 mm.

  By combining the forms of the receiver winding means 110 and the guide flapper portion 180 described so far, the flexible receiver 40 can change the usage pattern. That is, when the printed discharge sheet is received by the sheet basket 3, the user can select various receiving forms, which meets the diversification needs of the printing forms. Below, the detail of various receiving forms is demonstrated.

(First receiving form)
11A is a perspective view and FIG. 11B is a side view of the printing apparatus according to the first receiving configuration. In the present embodiment, the intermediate rod 121 is positioned on the side closer to the main body 1 of the intermediate rod positioning member 120. As shown in FIG. 11 (b), the flexible receiver 40 is held in the form of “U” by the intermediate rod 121, the top rod 20, and the rear rod 30, thereby forming a receiving portion. . The length of the receiver 40 is adjusted by the receiver winding means 110 so that a gap V2 between the slide plate 186 and the receiver 40 is formed. In the present embodiment, the length of the receptor 40 is adjusted. However, it is necessary to adjust the length of the receptor 40 such as stopping halfway by securing the gap V2 in the state where the receptor 40 is extended the longest. It is possible to eliminate it. Further, the flapper 183 is in a closed state. The slide plate 186 may be raised or lowered as long as the gap V2 can be formed.

  Next, the behavior of the sheet at the time of paper discharge will be described. The printed sheet W1 discharged from the discharge port 1a is guided to the sheet abutting member 170 (that is, the first sheet abutting portion) via the discharge port guide 1b, the flapper 183, the guide 184, and the slide plate 186. Is done. The sheet W1 is guided with its curled leading end directed toward the main body 1, and the leading end comes into contact with the sheet abutting member 170 and stops. When the sheet W1 is continuously conveyed in this state, a loop of the sheet W1 is formed on the side away from the main body 1 with the intermediate rod 121 as the inflection point. Thereafter, the sheet that has been conveyed and cut by a predetermined amount is reversed with the intermediate rod 121 as an inflection point, and is placed on the receiver 40 like the sheet W2 with the print surface facing down.

  This first receiving form is a form suitable for a relatively large size sheet (for example, A0 length). According to this embodiment, it is possible to place a plurality of sheets with the print side of the sheet facing down (face-down paper discharge).

(First Example of Second Receiving Form)
12A is a perspective view of the printing apparatus according to the first embodiment of the second receiving form, and FIG. 12B is a side view thereof. In the printing apparatus according to the present embodiment, the slide in the state in which the receiver 40 is wound by the receiver winding means 110 to shorten the length from the state of the first receiving form described above, and is lowered with the receiver 40. The plate 186 is in contact with the plate. That is, the receiver 40 is stretched so as to contact the slide plate 186. Accordingly, the gap V2 between the receiver 40 and the slide plate 186 is eliminated. In this manner, the receiver 40 and the slide plate 186 are brought into contact with each other so that the receiver 40 does not interfere with the roll 162 set on the roll holding portion 161. As a result, the second sheet abutting portion 190 is formed by closing the sheet discharge path (accommodating path) to the sheet abutting member 170. That is, the slide plate 186 is in contact with the receiver 40, thereby supporting the front end of the sheet at the midway position in the sheet storage path to the sheet abutting member 170 in the receiver 40 (second support). Part). At this time, the slide plate 186 comes into contact with the upper surface of the receiver 40 corresponding to the inner surface of the housing portion. The accommodation path is specifically formed by the receiver 40 installed from the intermediate rod 121 to the rear rod 30, and the sheet abutting member 170 is located at the lower end of the accommodation path. In the present embodiment, the housing portion is formed by the configuration from the second sheet abutting portion 190 to the top rod 20. Further, in this embodiment, the flapper 183 is in a closed state. The receiver 40 may be brought into contact with the guide 184 with the slide plate 186 raised. In other words, the slide plate 186 and the receiver 40 need only be able to relatively contact and separate, and the slide plate 186 may be fixed and the length of the receiver 40 may be adjusted. It is good also as a structure by which the receiver 40 is moved up and down and the length is fixed.

  In other words, the slide plate 186 is a moving unit that can move in a direction in which the slide plate 186 contacts and separates from the receiver 40. The second sheet abutting portion 190 is a support portion that is formed at a midway position in the sheet accommodation direction of the receiver 40 and supports the leading end portion of the sheet. That is, the support portion is formed so as to adjust the position of the front end of the sheet when accommodating a sheet having a short length. Further, when the support portion is not formed, the leading edge of the sheet proceeds downward from the guide 184 (or the slide plate 186).

  Next, the behavior of the sheet at the time of paper discharge will be described. The printed sheet W1 discharged from the discharge port 1a is guided to the second sheet abutting portion 190 via the discharge port guide 1b, the flapper 183, the guide 184, and the slide plate 186. The sheet W1 is guided with its curled leading edge directed toward the main body 1, and the leading edge comes into contact with the second sheet abutting portion 190 and stops. That is, the leading end of the sheet W1 is supported by the second sheet abutting portion 190. When the sheet W1 continues to be conveyed in this state, a sheet loop is formed on the side away from the main body 1 with the intermediate rod 121 as an inflection point, as in the sheet W2 to the sheet W3. Thereafter, the sheet that has been conveyed and cut by a predetermined amount is reversed with the intermediate rod 121 as an inflection point, and is placed on the receiver 40 like the sheet W4 with the print surface facing down. That is, the second sheet abutting portion functions as a support portion that supports the leading end of the sheet, and the sheet is discharged while being supported by the support portion. The receiver winding means 110 may be provided on the rear rod 30, and the receiver 40 may be wound around at least one of the top rod 20 or the rear rod 30 and stretched.

  The first embodiment of the second receiving form is suitable for a sheet (for example, A1 length) smaller than the first receiving form. According to this embodiment, it is possible to place a plurality of sheets with the print side of the sheet facing down (face-down discharge).

(Second Example of Second Receiving Form)
13A is a perspective view and FIG. 13B is a side view of a printing apparatus according to a second embodiment of the second receiving configuration. FIG. 14 is a perspective view for explaining the receptor folding means of the printing apparatus of FIG. 13, and is an enlarged view of a broken line portion XIV of FIG. Here, the difference from the first embodiment of the second receiving form described above will be described.

  The printing apparatus according to the present embodiment is configured so that the flexible receiver 40 can be folded and its length can be adjusted. As shown in FIG. 14, the receiver 40 according to the present embodiment has a plurality of holes 40 a at the end, and the holes 40 a are hooked portions of the joint member 13 provided at the tip of the side rod 11 ( (Not shown). By doing so, it is possible to fold the receptor 40 and adjust its length so as to contact the guide 184 or the slide plate 186. The method for adjusting the length of the receiver 40 is not limited to this example. For example, a member that can be detachably attached like a hook-and-loop fastener may be provided in the receiver 40. The receiver folding means may be provided on the rear rod 30, and the receiver 40 may be attached by being folded and attached to at least one of the top rod 20 or the rear rod 30.

  The behavior of the sheet at the time of paper discharge is the same as in the first embodiment. According to the present embodiment, the receiver winding means 110 in the first embodiment described above can be omitted, so that the configuration of the apparatus can be simplified.

(Third embodiment of the second receiving form)
FIG. 15 is a side view of the printing apparatus according to the third embodiment of the second receiving form. Here, the difference from the first embodiment of the second receiving form described above will be described. The printing apparatus according to this embodiment is configured to be able to move the position of the rear rod holding member 31 shown in FIG. By moving the rear rod holding member 31 to the back side of the main body 1, the rear rod 30 to which the receiver 40 is attached can also be moved. By doing so, the receiver 40 is pulled, and as a result, the receiver 40 is brought into contact with the slide plate 186 in the same manner as when the length of the receiver 40 is shortened in the first embodiment of the second receiving configuration. So that it can be stretched.

  Alternatively, the receiver 40 can be stretched so as to contact the slide plate 186 with the intermediate rod 121 movable by the intermediate rod positioning member 120 as an inflection point.

  The behavior of the sheet at the time of paper discharge is the same as that of the first embodiment of the second receiving form described above. According to this embodiment, since the receiver winding means 110 in the first embodiment of the second receiving configuration described above can be omitted, the configuration of the apparatus is the same as in the second embodiment of the second receiving configuration described above. Can be simplified. Further, the configuration according to the present embodiment may be combined with the printing apparatus according to the first embodiment of the second receiving form described above.

  As described above, according to the present receiving form, the position of the leading end of the sheet can be adjusted by a smaller accommodation mechanism, and an accommodation form that can accommodate a sheet having a short length can be taken.

(Third receiving form)
16A is a perspective view and FIG. 16B is a side view of the printing apparatus according to the third receiving configuration. In the printing apparatus according to the present embodiment, the flapper 183 is in an open state as compared with the first example of the second receiving form. At this time, the tip end portion 183a of the flapper 183 is positioned in the vicinity of the intermediate rod 121, and the discharge path to the second sheet abutting portion 190 is blocked as shown in FIG. The intermediate rod 121 functions as a support member that can support the sheet via the receiver 40. The sheet receiving portion (accommodating portion) forms a “mountain shape” by the flapper 183 in an open state and the receiver 40 stretched from the top rod 20 to the intermediate rod 121. That is, the upper surface of the flapper 183 in an open state and the upper surface of the stretched receiver 40 form a “mountain shape”. As will be described later, the stretched receiver 40 functions as a support portion that supports the rear end side of the sheet placed on the sheet receiving portion.

  Next, the behavior of the sheet at the time of paper discharge will be described. The leading edge of the printed sheet W1 discharged from the discharge port 1a is guided by the discharge port guide 1b, the sheet guide 185, and the guide 184, and stops at the concave portion of the guide 184. That is, the concave portion of the guide 184 receives the leading end of the sheet W1 and regulates the position of the leading end of the sheet W1. Then, if the sheet W1 is continuously conveyed in a state where the leading end of the sheet W1 is regulated by the concave portion, the leading end of the sheet W1 is discharged while being supported by the flapper 183. And like the sheet | seat W2, the loop of a sheet | seat is formed in the side away from the main body 1 by using the intermediate rod 121 as an inflection point. Thereafter, the sheet that has been conveyed and cut by a predetermined amount is reversed with the intermediate rod 121 as an inflection point, and is placed like a sheet W3 with the print surface facing down. That is, the receiver 40 stretched from the top rod 20 to the intermediate rod 121 functions as a support portion that supports the rear end side of the sheet W3. The present embodiment is suitable for a sheet having a size smaller than the first receiving form and the second receiving form (for example, A1 side and A2 side). According to this embodiment, a plurality of sheets can be placed with the print side down (face-down paper discharge).

  Next, with reference to FIG. 10 again, the behavior when a sheet having a strong curl at the front end and curled inward is discharged will be described. When the sheet is curled inwardly, when the leading end of the sheet hits the concave portion of the guide 184, a force is exerted to curl away from the main body 1 at the leading end of the sheet due to the curl. Therefore, if the sheet is conveyed as it is, the sheet will be rounded from the leading edge. However, in the vicinity of the opening on the upper surface of the concave portion of the guide 184, a convex-shaped convex portion 184d facing downward is provided. Therefore, after the front end portion of the sheet enters the concave portion, it is caught by the protruding portion 184d and engaged with the protruding portion 184d. Since the sheet is discharged from the discharge port in a state in which the leading end portion of the sheet is engaged with the projection-shaped convex portion 184d, it is possible to suppress rounding of the leading end of the sheet. On the other hand, the sheet receiving member of Patent Document 1 is not provided with a protruding portion that suppresses curling, so that the curl at the tip is strong and the sheet curled inward is discharged. In such a case, mounting accommodation failure occurs. As described above, according to this embodiment, even a sheet having a strong curl at the tip and curled inward can be placed and accommodated.

  Further, the gap V1 is formed so as to be larger than the sum of the thickness when the maximum number of sheets are placed and the maximum curl amount at the front end of the sheet. The maximum value of the curl amount at the front end of the sheet is the distance from the lowermost surface to the front end of the sheet that has been warped to the maximum in the vertical upward direction when the sheet is hung vertically downward. In this way, even when the maximum number of sheets with strong curl at the front end are placed, the front end of the sheet can be placed and accommodated without causing a jam at the entrance (gap V1) of the guide 184.

  As described above, the guide 184 is formed such that the length of the second regulating surface 184b in the paper discharge direction is smaller than the paper tube radius. That is, the length of the upper surface in the depth direction of the recess is formed to be shorter than the inner diameter of the roll around which the unused sheet is wound. Further, the height of the convex portion 184d (that is, the amount of protrusion from the upper surface of the concave portion) is formed to be larger than the maximum thickness of the sheet assumed to be used. In this way, even when a sheet having a strong curl at the leading end and curled inward is placed, the leading end of the sheet is reliably caught by the convex portion 184d before exceeding the center line of the curl, thereby curling the sheet. Can be prevented.

  For example, as shown in FIG. 8A, a plurality of guides 184 including a flapper 183 and a curl regulating mechanism (concave portion) are arranged in the sheet width direction. The recess is provided corresponding to each of the plurality of flappers. Further, since both sides in the width direction of the sheet front end are particularly curled, the guide 184 may be disposed at each of the positions corresponding to the both side ends of the sheet front end in order to surely restrict the curl on both sides. That is, the concave portions that are curl regulating mechanisms may be provided at least in two locations corresponding to both side portions in the width direction of the sheet that is assumed to be used. The guide 184 is detachably provided.

(4th receiving form)
FIG. 17 is a (a) perspective view and (b) side view of a printing apparatus according to a fourth receiving configuration. In FIG. 17A, one intermediate rod positioning member 120 is omitted for easy understanding.

  In the printing apparatus according to the fourth receiving form, the intermediate rod 121 is moved closer to the top rod 20 than in the third receiving form. Therefore, the flexible receptor 40 is slackened and bent by its own weight to form a bag shape that can receive the entire sheet. Thereby, an accommodating part will be formed in a bag shape. That is, in the seat basket 3, the receiver 40 having one end fixed to the top rod 20 and the other end fixed to the rear rod 30 via the intermediate rod 121 is curved by its own weight and is located at the lowest position. The lowest point P2 is located below the rear rod 30. Moreover, since the intermediate rod 121 has moved to the top rod 20 side, the space formed by the receiver 40 is formed widely in the depth direction (front-rear direction). In this embodiment, the flapper 183 is in an open state and protrudes between the discharge port 1a and the accommodating portion formed by the flexible receiver 40. That is, the accommodating part is comprised so that the area | region located in the downward direction of the gravity direction of the flapper 183 of the open state may be included. Thereby, the sheet storage space in the storage portion is formed under the flapper 183.

  Next, the behavior of the sheet at the time of paper discharge will be described. Similar to the third receiving mode described above, the leading end of the sheet W1 discharged from the discharge port 1a is guided by the discharge port guide 1b and the sheet guide 185, and stops against the first restriction surface 184a in the recess of the guide 184. Then, when the sheet W1 is continuously conveyed in a state where the leading end of the sheet W1 is regulated by the concave portion, the sheet W1 is guided while being supported by the flapper 183. Then, like the sheet W2, a loop of the sheet is formed vertically downward with the leading end 183a of the flapper 183 as an inflection point, and the subsequent part of the sheet hangs down in a loop shape in the accommodation space. At this time, the loop that hangs down at the tip 183a does not contact other members such as the receptor 40. After that, the sheet that has been conveyed and cut by a predetermined amount while maintaining this loop state falls into the bag-shaped receiver 40 and is placed in a gently folded state like the sheet W3.

  What is important here is that the front end side including the front end of the sheet is positioned on the flapper 183 from the guide 184 before cutting, and the sheet is accommodated and placed on the receiver 40 after cutting. Since the rear end of the sheet is held by the main body 1 before cutting, the center of gravity of the sheet is closer to the main body 1 than the front end 183a of the flapper 183. Therefore, the leading end side of the sheet is positioned on the flapper 183 from the guide 184 without dropping even when the sheet hangs vertically downward with the leading end 183a as an inflection point and a loop is formed. When the sheet is cut, the rear end of the sheet is not held by the main body 1, and the center of gravity of the sheet is shifted to the side farther from the main body 1 than the front end portion 183 a of the flapper 183. Therefore, the sheet falls from the vicinity of the middle part of the sheet where the loop is formed onto the receiver 40 due to its own weight, and is accommodated in a gently folded state while maintaining the loop shape.

  In this case, it is desirable that the upper surface of the flapper 183 (the support surface that supports the leading end portion of the sheet) be horizontal or ascend as the distance from the main body 1 or the discharge port 1a increases. This is because in the case of a downward slope, when the sheet forms a loop, the center of gravity of the sheet easily moves away from the main body 1, and the sheet may fall onto the receiver 40 before cutting. In this embodiment, in consideration of consistency with other forms, a shape in which the upper surface of the flapper 183 has an upward slope toward the tip of the flapper 183 is employed.

  Thus, in the seat basket 3, the intermediate rod 121 moves to the top rod 20 side, and the accommodating portion in which the receiver 40 is formed in a bag shape is located in the region including the lower part of the flapper 183 in the gravity direction. Yes. For this reason, the loop that hangs down from the front end 183a of the flapper 183 can be formed without being interfered by other members. On the other hand, in Patent Document 1, for example, the first receiving member and the second receiving member are in a substantially horizontal state, and the arm portion and the first receiving member that are positioned on the front side of the second receiving member are used. A seat member (corresponding to a receptor) is loosened between the front end and the storage portion. Therefore, in the technique of Patent Document 1, the sheet discharged while being supported by the second receiving member may form a loop in the accommodating portion, but this loop is in contact with the arm portion and the sheet member. It has become. And the cut sheet | seat falls and is accommodated in the accommodating part by the curl etc. For this reason, when the rigidity of the sheet is low or the curl of the sheet is weak, the sheet cannot be curled and accommodated in the accommodating portion. On the other hand, in the seat basket 3, the loop is formed to hang down without being interfered with other members at the front end portion 183a. Therefore, when the sheet is cut, it is dropped while maintaining the loop shape, and the loop shape is used. Then it is gently folded and accommodated. For this reason, even if it accommodates continuously, it will be mounted in the state folded gently. Thereby, in the seat basket 3, compared with the technique of patent document 1, the space of the height direction of a accommodating part can be utilized effectively, more sheets can be accommodated, and the degree of curl of a sheet Thus, it can be reliably accommodated in the accommodating portion regardless of the length. In this fourth receiving mode, it is assumed that regular paper and coated paper, which are often used mainly in drawings and posters, are used in standard sizes such as A0 and B0. However, the size is limited to these standard sizes. In addition, sheets of a plurality of sizes can be accommodated simultaneously.

  Here, FIG. 18 shows the experimental results of examining the sheet fall state depending on the inclination angle of the flapper 183 and the length of the sheet positioned on the flapper 183 and the guide 184. In the drawing, the length Lp represents the length from the concave portion of the guide 184 to the tip portion 183a of the flapper 183. The length L represents the length from the front end of the sheet restricted by the recess formed in the guide 184 to the lower end P1 of the loop that hangs down through the front end portion 183a. Further, the inclination angle θ of the flapper 183 is “0 °” when it is horizontal, and represents the angle of ascending slope of the upper surface of the flapper 183. The length Y represents the length in the depth direction (front-rear direction) between the distal end portion 183a and the top rod 20, that is, the horizontal length from the upper distal end portion of the housing portion to the distal end portion 183a. Note that the lengths Lp, L, and Y and the inclination angle θ are illustrated in FIG.

  When the length Lp is shorter than 1 / 4L, the center of gravity of the sheet before cutting is located on the side farther from the main body 1 than the tip 183a of the flapper 183, and the sheet positioned on the flapper 183 and the guide 184 is before cutting. Falls into the housing. For this reason, it is desirable that the length Lp is ¼ or more of the length L, and by doing so, the center of gravity of the sheet before cutting can be placed closer to the main body 1 than the front end portion 183a.

  Furthermore, the length Lp is preferably shorter than the length Y. When the length Y is shorter than the outer diameter of the paper tube of the roll to be accommodated (that is, the inner diameter of the roll), the sheet may be discharged out of the accommodating portion due to the curl of the sheet. For this reason, it is desirable that the length Y is longer than the outer diameter of the paper tube of the roll to be accommodated, so that the looped sheet is accommodated on the receiver 40 without being detached from the accommodating portion. can do.

  In the fourth receiving configuration, when the receiver 40 is formed in a bag shape, the lowermost point P2 of the receiver 40 is positioned closer to the main body 1 side (rear side) than the lower end P1 of the loop that hangs down from the distal end portion 183a. It is desirable to do. Or you may make it the lowest point P2 locate in the side (front side) which leaves | separates from the main body 1 rather than the lower end P1. That is, it is desirable that the receiver 40, that is, the inner surface of the housing portion is inclined below the lower end P1 in the gravitational direction depending on the positional relationship between the lowest point P2 and the lower end P1. Accordingly, the sheet that has been cut and dropped while maintaining the loop shape is gently folded using the inclined surface formed by the receiver 40 while efficiently using the loop shape.

(First Example of Fifth Receiving Form)
19A is a side view, FIG. 19B is a top view, and FIG. 19C is a front view of the printing apparatus according to the first example of the fifth receiving form. In addition, in the front view of FIG.19 (c), the receiver 40 is abbreviate | omitted in order to make an understanding of the structure behind the receiver 40 easy. In the printing apparatus according to this embodiment, from the state of the first embodiment of the second receiving form, the user moves the slide plates 186 up and down according to the size of the discharged sheet. Specifically, as shown in FIG. 19C, among the plurality of slide plates 186a to 186d, the right end slide plate 186d is raised. By doing so, the second sheet abutting portion 190 is partially opened, and a sheet having a width smaller than the predetermined width can be conveyed to the first sheet abutting portion constituted by the sheet abutting member 170.

  Next, the behavior of the sheet when discharged will be described. In this embodiment, the sheet reference end (reference position), which is a reference position when the sheet is discharged from the discharge port 1a, is set on the right side in the sheet width direction. As described above, first, the user performs the raising / lowering operation of at least one slide plate 186 from the right side in the sheet width direction according to the size of the sheet to be discharged. In FIG. 19C, the first slide plate 186d from the right is raised, and the second, third, and fourth slide plates 186a to 186c from the right are lowered. That is, the second sheet abutting portion 190 similar to that of the first embodiment of the second receiving form is formed by the lowered slide plates 186a to 186c and the receiver 40.

  In this state, as shown in FIG. 19B, when a sheet W1 larger than a predetermined width (for example, A1 length or more) is discharged, the leading edge of the sheet is the same as in the first embodiment of the second receiving form. It strikes against the second sheet abutting portion 190. If the sheet continues to be conveyed in this state, the sheet W1 is reversed with the intermediate rod 121 as the inflection point, and is stored with the print surface facing down. In the present embodiment, compared with the second receiving form, the number of contact points between the leading end of the sheet and the second sheet abutting portion 190 is small, and the force for tilting the sheet at the time of accommodation becomes strong. However, the intermediate rod positioning member 120 serves as a guide, and the force for tilting the sheet can be minimized.

  On the other hand, as shown in FIGS. 20A and 20B, when a sheet W2 smaller than a predetermined width (for example, A2 length or less) is discharged, the sheet W2 is placed between the raised slide plate 186d and the receiver 40. Pass through the resulting gap. Further, the sheet hits the sheet abutting member 170 below the main body 1 and is placed on the receiver 40. By doing so, the printing apparatus according to the present embodiment can accommodate sheets of different sizes while sorting with a small number of user operations.

  In this embodiment, as described above, the sheet reference end is set on the right side in the sheet width direction, but the present invention is not limited thereto. For example, at least one slide plate 186 may be moved up and down from the sheet width direction left side if the sheet reference end is the left side in the sheet width direction and from the center in the sheet width direction if the sheet width direction center. In addition, the second sheet abutting portion 190 is formed by bringing the slide plate 186 into contact with the receiver 40 in the middle of the accommodation path, but the present invention is not limited to this. For example, a member that is substantially perpendicular to the receiver 40 is detachable at an intermediate position, and if necessary, the member is attached to the receiver 40 so that the leading edge of the sheet is regulated by the member. It may be supported.

  In this embodiment, as described above, the slide plate 186 is moved up and down to sort and store sheets of different sizes. However, the present invention is not limited to this. That is, for example, the flapper 183 may be opened and closed or the guide 184 provided in a detachable manner may be removed according to the size of the sheet to be discharged. Specifically, when the sheets W1 and W2 are accommodated, the flapper 183 of the guide 184 having the slide plates 186a to 186c is opened, and the flapper 183 of the guide 184 having the slide plate 186d is closed. . Alternatively, the slide plates 186a to 186c are lowered to come into contact with the receiver 40, and the guide 184 having the slide plate 186d is removed.

(Second Example of Fifth Receiving Form)
21A is a side view, FIG. 21B is a top view, and FIG. 21C is a front view of the printing apparatus according to the second embodiment of the fifth receiving mode. In addition, in the front view of FIG.21 (c), the receiver 40 is abbreviate | omitted in order to make an understanding of the structure behind the receiver 40 easy. The difference between the printing apparatus according to the present embodiment and the printing apparatus according to the first embodiment of the fifth receiving form described above will be described below. In the printing apparatus according to the present embodiment, one guide 184 is detachably provided as shown in FIGS. The guide 184 is disposed on the inner side (right side of the sheet in the drawing) of the sheet W1 (for example, A1 length or more) larger than the predetermined width and outside the width of the sheet W2 (for example, A2 length or less) smaller than the predetermined width (see FIG. The left side of the middle page). Further, since the guide 184 is detachable, the user can change the arrangement location according to the size of the sheet.

  The behavior of the sheet during discharge is the same as that of the first example of the fifth embodiment described above. In this embodiment, the guide 184 is configured to be detachable. However, the guide 184 may be configured to be movable in the sheet width direction, and the user may move the guide 184 in accordance with the sheet size.

(Third example of fifth receiving mode)
22A is a side view, FIG. 22B is a top view, and FIG. 22C is a front view of the printing apparatus according to the third embodiment of the fifth receiving mode. In addition, in the front view of FIG.22 (c), the receiver 40 is abbreviate | omitted in order to make an understanding of the structure behind the receiver 40 easy. The difference between the printing apparatus according to the present embodiment and the printing apparatus according to the first embodiment of the fifth receiving form described above will be described below. In the printing apparatus according to the present embodiment, as shown in FIGS. 22B and 22C, two guides 184e and 184f are detachably provided. The guide 184e is inside (on the right side of the drawing in the drawing) a width of the sheet W1 (for example, A1 length or more) larger than a predetermined width and outside the width of the sheet W2 (for example, A2 length or less) that is smaller than the predetermined width (on the left side in the drawing) ). The guide 184f is provided on the right side of the sheet width direction central portion Wc of the sheet W2 (for example, A2 length or less) smaller than the predetermined width. A sheet W1 larger than a predetermined width (for example, A1 length or more) comes into contact with the two guides 184e and 184f. Then, as in the first embodiment of the fifth receiving form described above, the intermediate rod 121 bulges outward (the side away from the main body 1) from the inflection point, and when cut, it is reversed with the print surface down. To be accommodated. On the other hand, the sheet W2 smaller than the predetermined width (for example, A2 length or less) is not long enough to bulge outward with the intermediate rod 121 as an inflection point, and does not contact the left guide 184e. For this reason, the leading edge of the sheet contacts only the right guide 184f, but the guide 184f is located on the right side of the sheet width direction central portion Wc of the sheet. Therefore, the sheet falls while rotating in one direction (clockwise in FIG. 22B) by its own weight around the contact point with the guide 184f, and is accommodated on the receiver 40 below the main body 1. The As shown in FIGS. 23A and 23B, the guide 184f may be provided on the left side of the sheet width direction central portion Wc of the sheet W2 smaller than the predetermined width. In this case, the sheet W2 in contact with the guide 184f rotates and drops in the other direction (counterclockwise in FIG. 23A) with the contact point as the center.

  As described above, in the fifth receiving mode, one or a plurality of guides 184 capable of independently operating the flapper 183 and the slide plate 186 are installed or moved in accordance with the width of the sheet. As a result, the printing apparatus can sort and store sheets of a larger variety of sizes as compared with Patent Document 1 in which the second receiving member having a function common to the flapper 183 is interlocked.

  In this embodiment, the guides 184e and 184f are described as being detachable. However, when the guides 184e and 184f are movable, the user moves the guide 184f according to the size of the sheet. It becomes. In this embodiment, the two guides 184e and 184f are provided, but the present invention is not limited to this. For example, one sheet or three or more guides 184 may be provided as long as a sheet smaller than a predetermined width can pass therethrough, but a large sheet does not pass but contacts the guide and then reversely accommodated.

  Although the above-described embodiment has been described using the printing apparatus in which the sheet storage apparatus is integrated, the present invention is not limited to this. For example, as shown in FIGS. 24A and 24B, the printing apparatus 200 to which the present invention can be applied can use the seat basket 3 as a separate sheet basket 203 that can contact and separate from the main body 201. In such a printing apparatus 200, the mechanism for storing and placing the sheet is the same as in the previous embodiments. The seat basket 203 is held by a pedestal 204 that is independent from the main body 201. The pedestal portion 204 may include wheels 205, and in this case, the movement of the seat basket 203 can be simplified. Further, the seat basket 203 can be separated from the main body 201 without removing the stored sheet. By separating the sheet basket 203 from the main body 201, the replacement work of the rolls 162 set on the roll holding portions 160 and 161 is facilitated.

  The sheet basket 3 in the printing apparatus 10 is not limited to the printing apparatus, and may store sheets discharged from various sheet processing apparatuses such as an image reading apparatus. Further, the printing apparatus 10 may use a sheet other than the sheet unwound from the roll. Further, although the flapper 183 is configured to rotate, the present invention is not limited to this. That is, the flapper 183 may be configured to be changeable to a position that can support the leading end portion of the sheet discharged from the discharge port 1a or a position that does not support the leading end portion. Specifically, for example, it may be configured to slide between a position where the leading end of the sheet is supported and a position where it is not supported. At this time, each flapper 183 operates independently, and is movably disposed on the guide 184, for example.

  As described above, according to the present invention, it is possible to provide a sheet storage device that stores discharged sheets after printing, and a printing apparatus including the sheet storage device.

DESCRIPTION OF SYMBOLS 1a Outlet 3 Sheet basket 5 Printing part 10 Printing apparatus 40 Receptor 160, 161 Roll holding part 183 Flapper 184 Guide

Claims (8)

A storage section for storing the sheet discharged from the discharge port using a flexible sheet-shaped receptor;
A flapper capable of taking a first state in which the leading end of the sheet descends by its own weight from the discharge port as it is discharged, and a second state in which the sheet is not supported;
A sheet storage device comprising:
When the flapper is in the first state and the storage space of the storage portion is below the flapper, the sheet discharged from the discharge port is maintained while the tip end portion is supported by the flapper. A subsequent portion of the sheet hangs down in a loop shape in the accommodation space.   When the flapper is turned upward from the first state, the flapper is in the closed second state, and when the flapper is rotated downward from the second state, the flapper is in the first state opened. The sheet storage device according to claim 1, further comprising a support surface that is inclined upward toward the tip of the flapper.   3. The sheet storage device according to claim 1, wherein the receiver forming the storage space is inclined below a hanging portion of the loop-shaped sheet.   4. A laterally recessed portion for receiving a leading end portion of a sheet abutting against the flapper when the flapper is in the first state is provided in the vicinity of the flapper. The sheet storage device according to item.   When the flapper is in the first state, the leading end of the sheet descends from the discharge port and enters the recess through the flapper, and the leading end of the sheet is supported by the recess and the flapper. 5. A sheet storage device according to claim 4, wherein a subsequent portion of the sheet is discharged from the discharge port.   When the flapper is supporting the leading edge of the sheet in the first state, the length from the recess to the leading edge of the flapper is 1 / of the length from the leading edge of the sheet to the lower edge of the sheet hanging in a loop. The sheet storage device according to claim 4, wherein the number is 4 or more. The sheet is a sheet unwound from a roll,
5. The length in the horizontal direction from the upper end of the accommodating portion to the tip of the flapper when the flapper is in the first state is longer than the inner diameter of the roll. 7. The sheet storage device according to any one of items 6 to 6. A roll holding unit for holding a sheet roll rotatably;
A printing unit for printing on a sheet conveyed by unwinding the roll held by the roll holding unit;
A printing apparatus comprising: the sheet storage apparatus according to claim 1, which receives a sheet printed by the printing unit.

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