JPH09282U - Paper issuing device - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents the entry of foreign matter through the paper outlet,
(EN) Provided is a sheet issuing device capable of preventing the sheet from coming into contact with the sheet from the sheet discharge port side before a predetermined printing and cutting operation is completed. [Structure] A paper feeding unit that conveys paper, a cutter unit that cuts a predetermined length on the leading end side of the paper in a state of being connected to a base end side through a coupling unit at an arbitrary position, and a cutter unit that cuts the paper. The paper discharge port that discharges the specified length of paper, and the operation of the paper from the outside is restricted until the cut length of the paper is issued, and at least the paper leaves the coupling part by the cutter part. When the paper is cut, the paper discharge standby unit is set to a length such that the leading edge of the cut paper does not protrude from the paper discharge port, and after cutting a predetermined length of paper by the cutter unit, A control unit that controls the paper feed unit so that the paper is fed by a predetermined amount and the leading end of the paper is projected from the paper discharge port, and after the paper is discharged, the paper is fed at least by the predetermined amount in the reverse direction.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a paper issuing device such as a relatively small-sized printer used for issuing various tickets or receipts, and more particularly to a device for devising a structure of a paper ejection unit and control for ejection. .

[0002]

[Prior art]

 A conventional printer has, for example, an appearance as shown in FIG. The printer shown here carries out predetermined printing on paper and ejects it as, for example, a ticket or a receipt. First, there is a box-shaped case 1 in which a paper feed unit 3, a printing unit 5, and a cutter unit 7 are housed and arranged, as shown in FIG. The paper feeding unit 3 is composed of a driving roller 9 and another driving roller 11 which is pressed against and arranged on the driving roller 9. The pair of driving rollers 9 and 11 feeds the sheet 13 in the direction indicated by the arrow a.

The printing unit 5 includes a print head 15 and a platen 17. The print head 15 prints a predetermined amount on the paper 13 sent onto the platen 17 by the paper feed unit 3. The cutter unit 7 is composed of a pair of guide members 19 and 21, and a cutter 23 disposed between these guide members 19 and 21 so as to be capable of reciprocating in the direction indicated by arrow b. As shown in FIG. 13, the cutter 23 has a non-cutting portion 25 at the center. That is, the sheet 13 is not completely cut, but is cut in a state where the central portions are connected. Further, the case 1 is provided with a sheet discharge port 27.

In the above configuration, the paper feeding unit 3 feeds the paper 13 toward the printing unit 5, and the printing unit 5 performs predetermined printing. After performing the predetermined printing, the paper feeding unit 3 feeds the paper 13 by a predetermined amount, and the cutter 23 of the cutter unit 7 is reciprocated to cut the paper 13. As a result, the paper 13 is discharged from the paper discharge port 27 as a ticket or a receipt 13 ′.

[0005]

[Problems to be solved by the device]

 According to the above-mentioned conventional configuration, there are the following problems. First, the sheet outlet 27 is provided in a side portion of the case 1 in a relatively wide open state. This is so that the sheet 13 can be smoothly ejected when ejecting the sheet 13 as a ticket or a receipt. However, foreign matter may enter from the outside through the paper discharge port 27, and the foreign matter that entered may impair the reciprocating operation of the cutter 23 of the cutter unit 7.

Further, as shown in FIG. 14, while the sheet 13 is being printed by the printing unit 5, the operator holds the sheet 13 from the sheet outlet 27 side by pinching the leading end of the sheet 13 with a finger 29. Sometimes In this case, the ejection operation of the sheet 13 from the sheet ejection port 27 is impaired, and the sheet 13 is loosened in the sheet ejection port 27 as shown in the figure. In this case, there is a problem that the normal feeding operation of the paper 13 by the paper feeding unit 3 is impaired, which causes a paper jam.

Further, as shown in FIG. 15, after the predetermined printing is performed on the sheet 13, the sheet operator is rushed from the sheet outlet 27 side while cutting the sheet by the cutter 23 of the cutter unit 7. There is a case where the front end of the paper 13 is pinched by the finger 29 and the paper is forcibly pulled. In this case, since the cutter 23 is in the middle of cutting, a large load is applied to the cutter 23, and the cutter 23 is bent as shown in the figure. If the cutter 23 bends in this way, then when it tries to make a reciprocating motion next, it will interfere with the guide members 19, 21 and the sound cutting motion will be impaired. There was a problem that it would end up.

The present invention has been made on the basis of such a point, and an object thereof is to prevent foreign matter from entering through the paper discharge port and to complete a predetermined printing and cutting operation. It is an object of the present invention to provide a paper issuing device capable of eliminating the above-mentioned inconvenience by preventing the paper from being operated from the paper exit side at the stage.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the paper issuing apparatus according to the present invention connects a paper feeding unit for feeding a paper and a predetermined length on the front end side of the paper to the base end side through an arbitrary connecting portion. The cutter unit that cuts in the closed state, the paper discharge port that discharges the paper of the predetermined length cut by the cutter unit, and the external paper until the paper of the predetermined length that has been cut is issued. A paper discharge standby unit that regulates the operation and is set to a length such that the leading edge of the cut paper does not protrude from the paper discharge outlet at least when the paper is cut by the cutter unit leaving the joining unit. After the paper of the predetermined length is cut by the cutter unit, the paper is fed by a predetermined amount and the leading end of the paper is projected from the paper discharge port. After the paper is discharged, at least the predetermined amount of paper is discharged. Reverse feed And control means for controlling the paper feeding unit such that, and is characterized in the this provided with the.

First, by attaching a paper ejection standby portion to the paper ejection opening, foreign matter can be prevented from entering from the outside, and the paper can be operated from the outside until the paper is issued as a ticket or receipt. It is regulated. With such a configuration, entry of foreign matter from the outside is regulated. It also prevents the paper from being picked up from the outside and impairing the conveyance operation of the paper while it is being issued as a ticket or receipt, and the paper from being forcibly pulled to impair the soundness of the cutter. Is. Further, by setting the length of the paper discharge standby unit so that the leading edge of the cut paper does not protrude from the paper discharge port at least when the paper is cut by the cutter unit, the paper is cut at the time of cutting. External operations on the paper will be restricted. Further, regarding the taking out of the paper, the control means allows the paper of a predetermined length to be cut by the cutter portion, and then feeds the paper by a predetermined amount so that the leading end of the paper is projected from the paper discharge port. After that, the paper is fed backward by at least the predetermined amount.

[0011]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In this embodiment, the present invention is applied to a horizontal printer, that is, a type in which the paper 13 is taken out from the side portion of the case 1. It should be noted that the same parts as those of the prior art are designated by the same reference numerals and the description thereof will be omitted. The printer according to this embodiment has an appearance as shown in FIGS. That is, the cover 101 is provided at a predetermined level position on the front surface side of the case 1. As shown in FIGS. 1 and 2, the cover 101 is attached to the case 1 by screw members (for example, those made of resin that can be screwed in without using tools) 103, 103 ′. It is fixed.

The positional relationship between the cover 101 and each component inside the case 1 is as shown in FIG. The cover 101 has a horizontal wall 105 at the bottom and an inclined wall 107 at the top. The inclined wall 107 is inclined and arranged so as to gradually narrow the opening area (the discharge path of the sheet 13) formed by the horizontal wall 105 and the inclined wall 107 toward the discharge direction of the sheet 13. The cover 101 is fixed to the case 1 so as to surround the conventional paper discharge port 27.

The length of protrusion of the cover 101 in the discharge direction of the sheet 13 (the length from the end of the cutter unit 7 as shown in FIG. 4) (L ₁ ) and the printing device issue The relationship with the length (L ₂ ) of the ticket 13 ′ (the sheet 13 cut into a predetermined length) is represented by the following formula (I). L ₁ > L ₂ (I) This is for the following reason. That is, when issuing a ticket 13 ′ having a length (L ₂ ), if the length (L ₁ ) of the cover 101 is shorter than (L ₂ ), the paper 13 is cut by the cutter unit 7 and the ticket 13 ′ is cut. During the issuance of'the ticket 13 ', the tip of the ticket 13' projects from the exit of the cover 101, so that the ticket 13 'can be contacted from the outside. In this case, as described in the description of the conventional example, a situation may occur in which the tip of the ticket 13 'is pinched to interfere with the normal discharging operation, or the ticket is forcibly pulled. Therefore, by setting the relation as shown in the above formula (I), the ticket 13 'cannot be contacted from the outside until the ticket 13' is completely issued.

By the way, between the projection length (L ₁ ) of the cover 101 in the discharge direction of the sheet 13 and the length (L ₂ ) of the ticket 13 ′ issued by the printing device, the above formula (I) is given. When such a relationship is set, the issued ticket 13 'cannot be taken out from the inside of the cover 101 as it is. Therefore, in the case of this embodiment, the following configuration is adopted. That is, as shown in FIG. 6, after issuing a ticket having a length (L ₂ ), an extra sheet 13 is sent out by the length (L ₃ ). The above-mentioned length (L ₃ ) is such that the tip of the ticket 13 ′ protrudes from the tip of the cover 101 by a predetermined amount, and the protruding portion can be picked up by the finger 29 and pulled out.

Further, in the case of the present embodiment, after the paper 13 is additionally sent out by the length (L ₃ ), after the ticket 13 ′ is discharged, this is reversed by the length (L ₃ ). It is configured so that the leading edge of the sheet 13 is returned to the initial position by feeding. Such control is realized by controlling a stepping motor (not shown) connected to the drive rollers 9 and 11 of the paper feeding section 3 in accordance with a preset / input program.

The operation will be described based on the above configuration. First, the paper 13 is sent out by the paper feeding unit 3, and a predetermined printing is performed by the printing unit 5. Next, the paper feeding unit 3 feeds the paper 13 by a predetermined amount. Then, the cutter 23 of the cutter unit 7 is cut by the reciprocating motion. At that time, the paper 13 is in a state of being connected through the non-cutting portion 25 at the central portion. At this stage, the sheet 13 is located inside the cover 101.

Next, the paper feed unit 3 feeds an extra length (L ₃ ). As a result, the leading edge of the sheet 13 projects from the leading edge of the cover 101 by a predetermined amount. After that, the non-cutting portion 25 is cut by picking up and pulling the protruding portion with the finger 29, and is taken out as the ticket 13 '. When finished emissions of ticket 13 ', the paper feed section 3 length paper 13 (L ₃₎ only by backward to return the leading end of the sheet 1 3 to the initial position. Hereinafter, the same operation will be repeated.

Next, the operation of the present invention will be confirmed by the flowchart shown in FIG. When printing is started, paper feeding is executed line by line while printing line by line (steps S1 and S2). Then, in step S3, it is determined whether or not n lines of printing have been completed (step S3). When n lines have not been printed, the above steps are repeated. On the other hand, if the printing of n lines has been completed, the process proceeds to step S4, where m lines of paper are fed, and then the paper is cut (step S5). At this point, the paper 13 is issued as a ticket 13 ', but the tip of the ticket 13' does not protrude from the cover 101. Then, the paper feeding of p rows is executed (step S6). Note that p is the number of lines corresponding to the length L ₃ . As a result, the tip of the ticket 13 'projects from the cover 101.

Next, in step S7, the sheet feeding is stopped, and in step S8, it is determined whether or not the ticket has been taken out. It is conceivable to provide a sensor at the sheet discharge port of the cover 101 as the determination means. If it has not been taken out, the determination is repeated. If it has been taken out, the process proceeds to step S9, where (p + r) sheet reverse feeding is executed, and the leading edge of the sheet 13 is returned to the initial position. Note that r is an arbitrary number of lines for returning the paper 13 to the initial position for issuing the next ticket. Next, in step S10, the reverse feeding of the sheet is stopped and the process is ended.

As described above, according to this embodiment, the following effects can be obtained. First, by providing the cover 101, it is possible to prevent foreign matter from entering from the outside. In particular, since the opening area of the tip portion of the cover 101 is reduced, foreign matter can be effectively prevented from entering. Further, since the step portion 109 is formed between the horizontal wall 105 of the cover 101 and the case 1, even if a foreign matter enters the cover 101, it does not enter the case 1 from there. . In this way, since foreign matter can be prevented from entering, foreign matter does not impair the reciprocating motion of the cutter 23.

[0021] Further, provided with the cover 101, the protrusion length of the cover 101 and (L _1), during the length of issued by the ticket 13 'and (L _2), the L _1> L ₂ the relationship Since the setting is made, it is impossible to pick the ticket 13 'from the tip of the cover 101 until the ticket 13' is completely issued. Therefore, as in the prior art, by pinching the ticket 13 'during the issuance, it is possible to prevent the normal transportation operation from being impaired and the cutting operation by the cutter 23 from being impaired by pulling it forcibly. it can. Therefore, it is possible to prevent occurrence of a paper jam phenomenon and bending / damage of the cutter 23.

Further, in the case of the present embodiment, in order to allow the issued ticket 13 ′ to be taken out, after the extra length (L ₃ ) is sent out, at least the length (L ₃ ) is sent. Since the leading end of the paper 13 is returned to the initial position by feeding the paper backward, it is possible to eliminate the dead space (non-printable portion) in the paper 13. That is, unnecessary consumption of the paper 13 can be eliminated.

Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10. First, as shown in FIG. 9, when the cover 101 according to the first embodiment is provided, there is a concern that the paper 13 may be jammed in the cover 101 due to its curl. The curl of the paper 13 is caused by the paper 13 being supplied as the roll paper 111 wound in a roll shape. In particular, at the terminal end of the roll paper 111 (the portion on the inner diameter side), a winding tendency having a diameter close to the diameter of the winding core 113 remains.

Therefore, in the second embodiment, as shown in FIG. 10, the guide portion 115 is provided on the inner side of the cover 101. The guide portion 115 is composed of inclined walls 117, 119, etc., and these inclined walls 117, 119 form a guide path 121 narrower than the diameter (R) of the winding core 113 of the roll paper 111. It is a thing. The interval (H) of the guide path 121 is gradually narrowed toward the tip, and the interval (H) at the inlet 123 is set to about half the diameter (R) of the winding core 113. There is. In addition, the guide portion 115 is arranged so as to have a downward slope toward the exit side.

As described above, in the case of the second embodiment, the same effect as in the case of the first embodiment can be obtained, and the guide portion 115 corrects the curl of the paper 13 to form the curl. It is possible to prevent the paper jam due to it. In particular, the interval (H) at the entrance 123 of the guide path 121 is set to about half the diameter (R) of the winding core 113, and the width gradually narrows from that to the exit, so that it approaches the winding core 113. With respect to the curl of the paper 13 at the set position, it can be effectively corrected to prevent the paper jam.

Further, since the guide portion 115 has a downward slope toward the exit side, even if foreign matter enters, it will not enter further, and conversely, the downward slope will be used to automatically remove the foreign matter. Can be issued. In the case of this embodiment, the horizontal wall 105 and the inclined wall 107 of the cover 101 have a function of maintaining mechanical strength. That is, the guide portion 115 alone is weak in structure, but by reinforcing it with the horizontal wall 105 and the inclined wall 107, the mechanical strength can be improved.

The present invention is not limited to the above-described embodiments. First, in the case of each of the above-described embodiments, the printer is a horizontal type (a type in which the paper discharge portion is on the side). Although the description has been made by using the vertical type, it is also applicable to the vertical type (the type in which the paper discharge portion is directed upward). Further, the invention can be applied to various paper issuing devices other than printers. Further, in the first embodiment, it is conceivable that the guide wall formed by the cover 101 has a downward slope by making the horizontal wall 105 of the cover 101 downward. As a result, the foreign matter that has entered can be automatically discharged. Further, in the second embodiment, the guide portion 115 itself may be the cover 101. In this case, the strength problem remains, but it should be solved by another configuration. In addition, the configuration of each unit is not limited to that shown in the drawing. As for the cutter, the example in which the non-cutting portion is provided in the central portion is shown, but other than this, it is conceivable to provide a plurality of non-cutting portions in the vicinity of the edge portion on the sheet side. Further, without providing a non-cutting portion on the cutter itself, for example, by using a V-shaped cutting blade to shorten the cutting stroke than usual, the joining portion can be formed in the substantially central portion of the paper. You can Regarding the reverse feed amount of the paper after cutting, at least, the extra fed length (L ₃ ) may be returned, and it may be returned by the length corresponding to the distance between the cutter and the printing unit. This will further reduce the dead space of the paper.

[0028]

[Effect of the invention]

 As described above, according to the paper issuing device of the present invention, by providing the paper discharge standby portion, it is possible to prevent foreign matter from entering from the outside, and thus to prevent the sound operation of the cutter portion or the like from being impaired. In addition, by controlling the paper feeding section by the control means, after the paper is cut by the cutter section, it is fed by a predetermined amount and the leading edge of the paper is projected from the paper discharge standby section, and the cut paper is After the paper is ejected, the paper is fed backward by at least the above-mentioned predetermined amount to return the leading edge of the paper, so it is possible to regulate the external operation of the paper until the cut paper is issued. It is possible to prevent clogging or loss of sound operation of the cutter section.

[Brief description of drawings]

FIG. 1 is a front view of a printing apparatus according to a first embodiment of the present invention.

FIG. 2 is a side view of the printing apparatus according to the first embodiment of the present invention.

FIG. 3 is a view showing the first embodiment of the present invention and is a rear view of the printing apparatus.

FIG. 4 is a side sectional view showing a configuration of a sheet discharge unit in the first embodiment of the present invention.

FIG. 5 is a plan view of a sheet according to the first embodiment of the present invention.

FIG. 6 is a side sectional view showing a configuration of a sheet discharge unit in the first embodiment of the present invention.

FIG. 7 is a side sectional view showing a configuration of a sheet discharge unit in the first embodiment of the present invention.

FIG. 8 is a diagram showing a first embodiment of the present invention and is a flow chart for explaining the operation.

FIG. 9 is a side cross-sectional view illustrating a configuration of a sheet discharge unit according to a second embodiment of the present invention.

FIG. 10 is a side sectional view showing the structure of the paper discharge unit in the second embodiment of the present invention.

FIG. 11 is a perspective view showing an external appearance of a printing apparatus showing a conventional example.

FIG. 12 is a side cross-sectional view showing a configuration of a paper discharge unit in a conventional example.

FIG. 13 is a partial plan view of a cutter showing a conventional example.

FIG. 14 is a side cross-sectional view illustrating a configuration of a sheet discharge unit in a conventional example.

FIG. 15 is a side cross-sectional view showing a configuration of a paper discharge unit in a conventional example.

[Explanation of symbols]

 1 Case 3 Paper Feeding Section 5 Printing Section 7 Cutter Section 13 Paper 13 'Ticket or Receipt 27 Paper Ejection Port 101 Cover (Paper Emission Standby) 115 Guide Section

Claims (1)

[Utility model registration claims] 1. A paper feed unit for feeding a paper sheet, a cutter unit for cutting a predetermined length of the front end side of the paper sheet in a state of being connected to a base end side via a coupling portion at an arbitrary position, and the cutter. A sheet discharge port for discharging a sheet of a predetermined length cut by a unit, and regulation of an operation on the sheet from the outside until the cut sheet of a predetermined length is issued, and at least the sheet is a cutter unit. When the paper is cut with the joining portion left, the paper discharge standby unit is set to a length such that the front end of the cut paper does not protrude from the paper discharge port, and the paper of the predetermined length is cut by the cutter unit. The paper feed unit is controlled so that the paper is fed by a predetermined amount after being cut by, and the leading end of the paper is projected from the paper discharge port, and after the paper is discharged, the paper is reversely fed by at least the predetermined amount. Control means , Paper issuing apparatus characterized by comprising a.