JP2015085530A - Paper feeder of portable information terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper feeder of portable information terminal equipment preventing supply of doubly fed paper to a printing section.SOLUTION: A paper feeder of portable information terminal equipment 1 is provided in the portable information terminal equipment 1 so that paper is supplied to a printing section. The paper feeder includes: a paper storage section for folding folded continuous paper in two and storing the paper; and a guide section 20 for guiding paper 210 drawn from the paper storage section up to the printing section. The paper guide section 20 includes a first guide section 22a for bending the paper 210 so that a first surface α of the paper 210 is disposed inside and a second guide section 26 for bending the paper 210 so that a second surface β to be an opposite side of the first surface α side is disposed inside between the first guide section 22a and the printing section. The first guide section 22a separates a portion adhered to the second surface β side of the paper 210 and doubly drawn while the second guide section 26 separates a portion adhered to the first surface α side of the paper 210 and doubly drawn.

Description

  The present invention relates to a technique for preventing double feeding of paper in a paper supply device that supplies paper to a printing unit of a portable information terminal device.

  Mobile terminal information devices with printers are widely used for outdoor meter reading work and the like. Many portable terminal information devices with printers use folding paper, so-called fan fold paper, as paper for miniaturization of equipment.

  In fanfold paper in which continuous paper is folded and stacked, the paper is pulled out with the crease portions adhering to each other, and the trouble that the paper enters the printing section while overlapping and is jammed in the printing section is likely to occur. As a technique for preventing such double feeding of paper, for example, a portable terminal information device that stores paper so that the folded front end of the paper is sufficiently separated from the entrance of the printing unit has been proposed (Patent Document 1). .

JP 2011-32025 A

  When a double-fed paper enters the printing unit, a big trouble occurs. Therefore, it is necessary to prevent the paper entering the printing unit from being double-fed.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a paper supply device for a portable information terminal device that does not supply double-feed paper to a printing unit.

  In order to achieve the above object, in a paper supply device of a mobile information terminal device that is provided in a mobile information terminal device and supplies paper to a printing unit, a paper storage unit that stores folded folded continuous paper in two, A paper guide section for guiding the paper drawn from the paper storage section to the printing section; the paper guide section; and a first guide section for bending the paper so that the first surface of the paper is on the inside. A second guide portion that bends the sheet between the first guide portion and the printing portion so that a second surface that is the opposite side of the first surface side is on the inside; 1 guide part separates the double-drawn portion attached to the second surface side of the paper, and the second guide part adheres to the first surface side of the paper 2 Separate the heavily drawn parts.

  ADVANTAGE OF THE INVENTION According to this invention, the paper supply apparatus of the portable information terminal device which does not supply a double feed paper to a printing part can be provided.

It is a perspective view which shows the external appearance of a portable information terminal device 4 is a cross-sectional view illustrating configurations of a paper supply unit 5 and a printing unit 60. FIG. 3 is a diagram schematically showing a folding sheet 200. FIG. FIG. 4 is a cross-sectional view illustrating configurations of a paper supply unit 5 and a printing unit 60 during printing. It is a figure (1) for demonstrating a mode that a sheet | seat is isolate | separated by a 1st guide part. It is FIG. (2) for demonstrating a mode that a sheet | seat is isolate | separated in a 1st guide part. FIG. 6 is a diagram (3) for explaining a state where a sheet is separated by a first guide unit. It is a figure (1) for demonstrating a mode that a paper is isolate | separated in a 2nd guide part. It is FIG. (2) for demonstrating a mode that a paper sheet is isolate | separated by a 2nd guide part. It is FIG. (3) for demonstrating a mode that a paper sheet is isolate | separated by a 2nd guide part. It is FIG. (4) for demonstrating a mode that a sheet | seat is isolate | separated by the 2nd guide part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an appearance of a portable information terminal device (also referred to as a portable information terminal device) applied to an embodiment of the present invention. For example, the portable information terminal device 1 is carried at the time of meter reading of gas, water, electric power, etc., and the result of the amount of gas used is printed on a recording medium at the site, and the printed recording medium is cut off directly to the user. It is a device that enables handing.

  Coordinates (XYZ) shown in the upper left of FIG. 1 are coordinates that define a directional relationship with each figure shown below. Further, as shown in the upper left of FIG. 1, the lower side of the portable information terminal device 1 shown in FIG. 1 is referred to as the front side, and the upper side is referred to as the rear side. The X direction is also called the width direction, and the Z direction is also called the height direction.

  The portable information terminal device 1 has an operation-related portion on the front side and a printer-related portion on the rear side, and is substantially vertically long and has a shape in which the rear side swells in the bottom direction. The portable information terminal device 1 includes a paper supply unit (also referred to as a paper supply device) 5 on the rear side, an upper cover 50 on the upper surface on the rear side, and a printing unit 60 on the inside near the center from the upper cover 50 as printer-related units.

  The paper supply unit 5 includes a paper storage unit 10 and a paper guide unit 20. The paper storage unit 10 has a space for storing folded paper therein. The swelled portion of the bottom of the portable information terminal device 1 is a paper storage unit 10. The paper storage unit 10 may be detachable and replaceable with a paper storage unit having a different size depending on the size of the folding paper to be used. The paper guide unit 20 guides the continuous paper drawn from the folded paper to the printing unit 60, and is provided in the upper part of the paper storage unit 10.

  The upper cover 50 is provided to be openable and closable by rotating in the P direction with respect to the main body 7 of the portable information terminal device 1. FIG. 1 shows a state in which the upper cover 50 is closed. A recess 52 is formed on the surface of the upper cover 50 for inserting a finger when the upper cover 50 is opened and closed. With the upper cover 50 closed, a slight gap is provided between the front end portion of the upper cover 50 and the main body portion 7 to form a paper discharge port 54 through which the paper is discharged.

  The lock button 58 is a button for holding the upper cover 50 in a closed state. The upper cover 50 can be opened by moving the lock button 58 to the unlock position. In addition, a locking portion 10 a that locks the opening and closing of the paper storage unit 10 is held in a locked state at the rear end of the portable information terminal device 1. The locking portion 10 a is a part of the paper storage portion 10.

  The portable information terminal device 1 includes a display unit 100 and an input unit 110 as operation-related units, and a battery cover 120 on the lower side surface of the input unit 110. The display unit 100 displays an operation menu or input or acquired data, and is a liquid crystal display, for example. The input unit 110 is used to input an operation instruction or various data, and includes a keyboard, for example. The battery cover 120 protects a battery storage chamber provided under the input unit 110. A lever 122 provided on the surface of the battery cover 120 is a knob for operating opening and closing of the battery cover 120. A shape of the portable information terminal device 1 taken along MM along the longitudinal direction is shown in FIG.

  2 is an MM cross-sectional view of the portable information terminal device 1 shown in FIG. 1 as viewed from the right. The configuration of the paper supply unit 5 (paper storage unit 10 and paper guide unit 20) and the printing unit 60 of the portable information terminal device 1 is shown. FIG. FIG. 2 shows a state in which the folded paper 200 is stored in the paper storage unit 10 but the paper is not pulled out.

  The paper storage unit 10 is formed by bending a thin resin sheet material into a box shape. The paper storage unit 10 stores folded folded continuous paper (folded paper 200) in two. The rear side wall 10 b of the paper storage unit 10 is a door that opens and closes the entrance of the folding paper 200. The side wall 10b is connected to the bottom 10c of the paper storage unit 10 at the base, and can be rotated in the + P direction from the base. By rotating the side wall 10b in the + P direction, the rear side of the paper storage unit 10 is opened. FIG. 2 shows a state in which the side wall 10b is in the closed position. The folded paper 200 can be stored from the opened rear side. The side wall 10b is held at the closed position by being connected to the locking part 10a at the tip of the side wall 10b and locking the locking part 10a to the main body part 7.

  Further, the sheet material constituting the paper storage unit 10 may be transparent. If the sheet is transparent, the sheet feeding state after the folded sheet 200 is bent and stored in the sheet storage unit 10 can be easily visually recognized from the outside, and the remaining amount of the folded sheet 200 can also be visually confirmed. . In addition, troubles related to paper such as paper jam can be found immediately. In addition, by storing the folded paper 200 in a curved shape, the positional deviation in the paper storage unit 10 is regulated to some extent by the repulsive force of the paper to be restored.

  The folded paper 200 in which the continuous paper is folded is folded in the center, and the folded folded paper 200 is stored in the paper storage unit 10 in a state where the folded folded paper 200 faces up and down. The folded paper 200 is stored so that the folded edge 200a and the folded edge 200b at both ends of the folded sheet 200 face each other vertically.

  FIG. 3 is a diagram schematically showing the folding paper 200. The folding sheet 200 is configured by stacking a plurality of sheets that are alternately folded at a fold line (perforation portion) parallel to the width direction. In this folding paper 200, for example, a dimensional standard after separation at a fold is determined for each user. As an example, a paper of width (80 mm) × length (200 mm) is alternately folded with a fold as a boundary. . The folding paper 200 is pulled out from the inside. In the following, in order to distinguish between the folded state and the drawn state, the folded sheet is referred to as a folded sheet 200, and the drawn sheet is referred to as a sheet 210.

  Returning to FIG. A paper guide unit 20 is provided in the upper part of the paper storage unit 10. The paper guide unit 20 guides the paper drawn from the paper storage unit 10 to the printing unit 60. A partition plate 22 is provided at a position on the rear side of the paper guide unit 20. The partition plate 22 has a length over the entire width direction of the sheet guide portion 20 and is provided so as to form an inclined surface at an angle such that the rear side is high and the front side is low. The partition plate 22 includes a first guide portion 22a and a slope portion 22b for guiding the paper 210.

  The 1st guide part 22a is a semicircle-shaped curved surface which is provided in the edge part of the rear side of the partition plate 22, and becomes convex substantially upward. The slope portion 22b is a portion that is located on the rear side in the first guide portion 22a and is inclined forward at a substantially constant angle.

  The first guide portion 22a is provided at a position where a predetermined gap K1 is secured between the front end of the first guide portion 22a and the side wall 10b of the paper storage portion 10. A gap (gap K1) between the first guide part 22a and the side wall 10b of the paper storage part 10 is also referred to as a first gap 24.

  Further, the tip end of the first guide portion 22a is provided at a position protruding L backward from the folded end portion 200a. This is because when the paper is pulled out from the folded paper 200, the load at the time of pulling out can be reduced by pulling the paper away from the folded end portion 200a (200b) (rear side).

A second guide portion 26 is provided at a position on the front side from the end portion of the slope portion 22 b of the partition plate 22. The second guide portion 26 has a curved surface shape in which a part of the upper cover 50 is convex downward. Specifically, the second guide portion 26 is formed by the inner wall of the portion that forms the recess 52 of the upper cover 50. A predetermined gap K <b> 2 is provided between the second guide portion 26 and the sheet 200. A gap (gap K2) between the second guide portion 26 and the sheet 200 is also referred to as a second gap 28.
In other words, the paper storage unit 10 is disposed at the bottom of the portable information terminal device 1, the folding paper 200 is folded in two up and down, and the folded portion of the folding paper 200 that overlaps the top and bottom is one end, The folding paper 200 is stored so that the curved portion becomes the other end. In the sheet guide unit 20, the first guide member 22a is disposed above one end, and the second guide unit 26 is located at a position lower than the first guide unit 22a and the other than the first guide unit 22a. It arranges in the position near the edge part of.

  The printing unit 60 includes a platen 62, a recording head 64 that prints on the paper 210, and a drive motor 66 that rotates the platen 62. The platen 62 is a paper driving member that pulls out the paper 210 from the folded paper 200 and also a pressing member that presses the paper 210 against the recording head 64.

  As the recording head 64, a thermal head capable of printing on the paper 210 by heat is used. As a result, necessary information is printed on the sheet 210 in a non-impact manner. However, the printing means is not limited to the thermal printing method, and for example, an impact printing method such as a wire dot may be used. Printing by the recording head 64 is controlled by the electric board 68, and a signal transmitted from the electric board 68 is printed by a signal that passes through the harness 70.

  The platen 62 is rotatably attached to the inside of the front end portion of the upper cover 50. The upper cover 50 is pivotally supported by the main body 7 and is rotatable in the P direction about the axis. The platen 62 is made of an elastic body such as rubber and is disposed in parallel with the rotation axis of the upper cover 50. That is, the second guide portion 26 is formed inside the upper cover 50 that can be opened and closed by the portable information terminal device 1.

  The drive motor 66 is disposed on the side facing the platen 62 with the recording head 64 interposed therebetween. The recording head 64 is constantly urged toward the platen 62 by an urging force of an elastic body (not shown), and various information is printed on the paper 210 by the recording head 64. The paper discharge port 54 is provided with a cutter blade (not shown) for cutting the paper 210.

  When preparing for printing, the upper cover 50 is opened (rotated in the + P direction), the paper guide unit 20 is opened, and the paper 210 is pulled out to the recording head 64 and set. After setting, the upper cover 50 is closed (in the −P direction), so that the platen 62 provided on the upper cover 50 is brought into close contact with the recording head 64 and the paper setting is completed.

  FIG. 4 is a cross-sectional view seen from the same direction as FIG. 3, and shows a state in which the folding paper 200 is being printed. Each position of the sheet 210 guided from the state of the folded sheet 200 to the sheet discharge port 54 is indicated by a sheet 210a to a sheet 210f in order. Further, since printing is performed on the recording head 64 side of the sheet 210, the surface of the sheet 210 on the recording head 64 side is a printing surface α (also referred to as a first surface), and the opposite surface is a non-printing surface β (first printing surface). 2) is also displayed.

  A sheet 210 drawn from the folded sheet 200 enters the sheet guide unit 20 from the sheet storage unit 10. The sheet 210 proceeds from the folding sheet 200 to the front of the first guide portion 22a in a linearly upward direction toward the first guide portion 22a toward the rear side (sheet 210a).

  The sheet 210 has a direction along the curved surface of the first guide portion 22a, with the printing surface α on the inside and the non-printing surface β on the outside, with the first guide portion 22a bent in a convex shape obliquely upward. Change (paper 210b). After passing through the first guide portion 22a, the sheet 210 advances obliquely downward toward the front in parallel with the inclined surface portion 22b (sheet 210c).

  The sheet 210 is moved forward along the curved surface of the second guide 26 with the printing surface α on the outer side and the non-printing surface β on the inner side. Change diagonally upward (paper 210d). After passing through the second guide portion 26, the paper 210 is sucked between the platen 62 and the recording head 64 (paper 210e). The sheet 210 passes between the platen 62 and the recording head 64 and is printed, and then is discharged from the sheet discharge outlet 54 (sheet 210f).

  The paper path described above forms a shape with the S-shaped sideways as shown by the bold line. That is, it can be said that the sheet guide unit 20 guides the sheet in a substantially S shape by the first guide unit 22a and the second guide unit 26.

  Each drawing in FIG. 5 is a diagram schematically illustrating, in time series, how the double-drawn paper portion is separated by the first guide portion 22a. Each drawing in FIG. 5 is a diagram illustrating a state in which the double drawn paper attached to the non-printing surface β side of the paper is separated by the first guide portion 22a. 5A, 5B, and 5C are time-sequential orders. Each drawing of FIG. 5 is a cross-sectional view seen from the same direction as FIG. 3, but portions unnecessary for explanation are omitted.

  FIG. 5A is a diagram illustrating a state in which when the sheet 210 is pulled out from the folded sheet 200 during printing, the sheet 210 is pulled out with a fold 220m following the fold 210m of the sheet 210 attached thereto. In order to make the position of the fold easier to understand, the fold is indicated by a black circle.

  Since the folding sheets 200 are often stored in a bundled state, the folds 220m following the folds 210m of the sheet 210 may adhere to each other with a weak force, and may be pulled out in an attached state. If the paper pulled out twice (hereinafter referred to as the double portion 220) is left between the platen 62 and the recording head 64, the paper jam occurs, the printing is interrupted, and the user is jammed. It is necessary to perform a paper take-out process and instruct printing again, which forces the user to perform extra work.

  FIG. 5A is a diagram illustrating a state in which the sheet 210 is pulled out from the folded sheet 200 in a state where the fold line 220m following the non-printing surface β of the fold line 210m of the sheet 210 is attached.

  FIG. 5B is a diagram illustrating a state in which the fold line 220m following the fold line 210m of the sheet 210 is attached to the front of the first guide portion 22a. The double portion 220 is attached to the non-printing surface β side.

  FIG. 5C is a diagram illustrating a state in which the attached crease 220m is separated. The sheet 210 is bent and moved with the printing surface α inward by the first guide portion 22a. Since the double portion 220 is only attached with a weak force at the crease portion, when the paper 210 is bent and moved, the double portion 220 is more resistant to bending than the adhesive force. Therefore, the fold 220m of the double portion 220 is separated from the fold 210m. As a result, the double portion 220 is separated in the direction of the arrow Q, and the double portion 220 moves to the first gap 24 and is detached from the sheet 210 to eliminate double drawer.

  Each drawing in FIG. 6 is a diagram schematically illustrating a state in which a double-drawn sheet portion (hereinafter referred to as a double portion 230) is separated by the second guide unit 26. In each drawing of FIG. 6, the subsequent crease 230 m attached to the printing surface α side of the sheet is separated by the second guide portion 26. 6A, 6B, 6C, and 6D are time-series orders. 6 are cross-sectional views as viewed from the same direction as FIG. 3, but portions unnecessary for description are omitted.

  FIG. 6A shows a state in which when the sheet 210 is pulled out from the folded sheet 200 during printing, the sheet 210 is pulled out with the crease 230m following the fold 210m of the sheet 210 attached. As described with reference to FIG. 5, an error occurs when the recording head 64 is entered with the paper drawn out twice.

  FIG. 6A is a diagram illustrating a state in which the sheet 210 is pulled out from the folded sheet 200 in a state where the subsequent fold line 230m is attached to the printing surface of the fold line 210m of the sheet 210.

  FIG. 6B is a diagram illustrating a state in which the fold 230m following the fold 210m of the sheet 210 is attached and bent and moved by the first guide portion 22a. Even when bent by the first guide portion 22 a, the double portion 230 is attached to the printing surface α side of the paper 210, and the double portion 230 is inside the paper 210. There is no separation.

  FIG. 6C is a diagram illustrating a state in which the double portion 230 is attached to the sheet 210 and is moved to the end portion of the slope portion 22b through the first guide portion 22a.

  FIG. 6D is a diagram illustrating a state where the attached subsequent fold 230m is separated. The sheet 210 is bent and moved by the second guide unit 26 with the printing surface α facing outward. Since the double portion 230 is only attached with a weak force at the crease portion, when the paper 210 is bent and advanced, the double portion 230 has a greater resistance to bending than the adhesive force. Therefore, the fold line 230m of the double portion 230 is separated from the fold line 210m. As a result, the double portion 230 is separated in the direction of the arrow R, and the double portion 230 moves to the second gap 28 and is detached from the sheet 210 to eliminate double drawer.

Listed at least are the effects achieved by the embodiment described above.
-Since the double portion adhering to the paper is separated by bending the paper at the middle guide portion, no sensor or actuator is required, and the portable terminal can be miniaturized.
Since the paper guide portion is provided with a member for bending the paper with the printing surface inside (first guide portion) and a member for bending the paper with the non-printing surface inside (second guide portion), Even if there are double portions on either surface, they can be reliably separated.
-Since the gaps (first gap and second gap) for receiving the separated double parts are provided in the vicinity of the members to be bent (first guide part and second guide part), the double parts to be separated are There is no risk of getting caught.
-Since the second guide portion is provided on the upper cover that can be opened and closed, the sheet setting is completed only by the operation of closing the upper cover.

The modification with respect to embodiment described above is listed.
-First, the printing surface is bent inside, and then the printing surface is bent outside (non-printing surface inside), but the reverse order may be used.
Although the paper storage unit is provided in the lower part of the paper guide unit, the paper storage unit may be provided in the upper part of the paper guide unit.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, all the constituent elements shown in the embodiments may be appropriately combined. Furthermore, constituent elements over different embodiments may be appropriately combined. It goes without saying that various modifications and applications are possible without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Mobile terminal device 5 Paper storage chamber 7 Main body part 10 Paper storage part 20 Paper guide part 22 Partition plate 22a First guide part 22b Slope part 24 First gap 26 Second guide part 28 Second gap 50 Upper cover 52 Recess 54 Exhaust Paper mouth 58 Lock button 60 Printing unit 62 Platen 64 Recording head 66 Drive motor 68 Electric board 70 Harness 100 Display unit 110 Input unit 120 Battery cover 122 Lever 200 Folding paper 200a, 200b Folding edge 210 Paper 210m, 220m, 230m Crease 220 230 double part

Claims (5)

In a paper supply device of a mobile information terminal device that is provided in a mobile information terminal device and supplies paper to a printing unit,
A paper storage unit for storing the folded continuous paper in two;
A paper guide unit for guiding the paper drawn from the paper storage unit to the printing unit;
The paper guide section includes a first guide section that bends the paper so that a first surface of the paper is on the inside, and the first surface side between the first guide section and the printing section. A second guide portion that bends the paper so that the second surface on the opposite side is on the inside;
The first guide part separates a portion that is attached to the second surface side of the sheet and is pulled out twice.
The paper supply device for a portable information terminal device, wherein the second guide unit separates a portion of the paper that is attached to the first surface side and is double-drawn. The paper guide part is provided with a first gap around the first guide part for receiving the double drawn part separated by the first guide part, and further around the second guide part. 2. The paper supply device for a portable information terminal device according to claim 1, further comprising a second gap that receives the double-drawn portion separated by the second guide portion. The paper storage unit is disposed on a predetermined surface of the portable information terminal device, and is folded in such a direction that the folded portion of the overlapping folded paper is one end and the folded portion is the other end. Store paper,
The sheet guide unit has the first guide member disposed above the one end, and the second guide unit is positioned at a position lower than the first guide unit and the other of the first guide unit. 2. The paper supply device for a portable information terminal device according to claim 1, wherein the paper supply device is disposed at a position close to an end of the personal digital assistant. The portable information according to claim 1, wherein the sheet guide unit guides the sheet in a substantially S shape within the sheet guide unit by the first guide unit and the second guide unit. Paper supply device for terminal equipment. 5. The portable information terminal device according to claim 1, wherein the second guide unit is formed inside an upper cover that supports a platen of the printing unit and that can be opened and closed by the portable information terminal device. Paper supply device.