JP2008210097A - Receipt printing and issuing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receipt jam prevention mechanism of a printing apparatus which can move a printed receipt without staying it. <P>SOLUTION: A receipt printing and issuing apparatus provided with a printing part for printing characters or the like on heat sensitive rolled paper and a cutter part comprising a rotary cutter for cutting off the printed heat sensitive rolled paper in each receipt of a prescribed length and a protection cover for securing the rotating operation space of the rotary cutter is provided with the receipt jam prevention mechanism which is constituted by forming a gap through which the heat sensitive roller paper can be passed during the feeding operation of the printed heat sensitive rolled paper oppositely to a rotary edge of the rotary cutter and attaching the end part of an elastic member guide to be elastically deformed to the inside of a space formed by the protection cover according to the rotating operation of the rotary edge during the cutting of the heat sensitive rolled paper to a receipt ejection side end part of the protection cover. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a printing apparatus used for a receipt issuing machine, a register, and the like, and more particularly to a mechanism for preventing a receipt jam in sheet cutting after printing.

  FIG. 4 shows a schematic configuration from the side as a general printing device conventionally used for a receipt issuing machine or a register. In the printing apparatus of the receipt issuing machine shown in FIG. 4, the thermal roll paper 11 held in the paper storage unit 12 is conveyed through a paper conveyance path 13 having an idle roller 14, and a printing unit (thermal head) 17 is provided. A platen (mechanism for transporting the sheet in close contact with the thermal head) 16 is brought into contact with a predetermined pressure to generate heat, and thereafter, the printing receipt sheet 22 on which the thermal roll paper is printed is placed on the rotary cutter unit 19. The sheet is cut by a fixed blade 191 and a movable blade 192 and issued as a receipt (see Patent Document 1).

  In a receipt issuing machine using a rotary cutter as shown in FIG. 4 having a conventional structure, when a receipt is issued continuously, it is cut due to, for example, leaving or forgetting a receipt that has been previously issued or cut. A portion of the receipt 23 is left inside the receipt issuing machine.

  In this way, in a receipt issuing machine that sequentially prints heat-sensitive roll paper, cuts it with a rotary cutter having a conventional structure, and issues a receipt, the issued receipt stays in a protective cover inside the machine in the cutter mechanism section. A collision X22x shown in FIG. 5 occurs at a portion where the leading edge of the issued receipts and the trailing edge of the staying receipts overlap.

In the cutter mechanism portion of the conventional structure as shown in FIG. 4, the issued cut receipt 23 staying at the outlet of the receipt issuing portion as shown in FIG. In particular, there is a problem in that a receipt jam of a receipt being issued occurs due to a collision at the cutter rear space 24 formed by the protective cover 25 and the fixed blade 191.
JP 11-99715 A

  The problem to be solved with respect to the occurrence of a receipt jam in a printing device used in a receipt issuing machine or a register is that a receipt that is being issued or cut collides or stays in the gap space at the rear of the cutter. It is.

  The present invention has been made in view of the above problems, and in a receipt issuing machine or the like, the receipt is moved without staying in the space portion where the rotary blade of the rotary cutter moves through which the printed receipt is issued. It is an object of the present invention to provide a receipt jam prevention mechanism for a printing apparatus.

  In order to achieve the above object, the receipt print issuing device according to claim 1 of the present invention opposes the gap through which the thermal roll paper can pass during the feeding operation of the printed thermal roll paper to face the rotary blade of the rotary cutter. When the thermal roll paper is cut, an elastic member guide that elastically deforms to the inside of the space formed by the protective cover in response to the turning operation of the rotary blade has an end portion of the protective cover. Provided is a receipt jam prevention mechanism characterized in that it is attached to the receipt discharge side end.

  Furthermore, in the receipt print issuing apparatus according to claim 2 of the present invention, the elastic member guide is any one of a metal spring plate, a rubber plate, and a rubber sponge body.

  According to a third aspect of the present invention, there is provided a receipt printing and issuing apparatus according to the present invention, wherein, when a printed thermal roll paper is fed, the thermal roll paper faces a rotary blade of the rotary cutter and forms a gap through which the thermal roll paper can pass. A lever body, a stopper for restricting the lever body to a position where the gap is formed, and an end portion on the receipt discharge side of the protective cover according to the turning operation of the rotary blade when the thermal roll paper is cut. A shaft pin for rotatably mounting the lever body and an urging force corresponding to the backward movement of the rotation operation to the inside of the space formed by the protective cover are disposed around the shaft pin. Provided is a receipt jam prevention mechanism characterized by comprising a torsion spring body.

  According to the receipt jam prevention mechanism of the printing apparatus of the present invention, it is possible to greatly reduce the receipt jam that occurs in an internal rotary cutter portion of a receipt issuing machine or the like, and stable receipt issuance can be performed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 shows a schematic configuration of a printing mechanism and a cutter mechanism of a printing apparatus of a receipt issuing machine according to a first embodiment of the present invention, and a receipt jam prevention mechanism. FIG. 2 shows a detailed configuration of the cutter mechanism and the receipt jam prevention mechanism according to the present embodiment.

  As shown in FIG. 1, in this printing mechanism unit, the end portion of the thermal roll paper 11 provided in the paper storage unit 12 is connected to a platen (thermal head) via an idle roller 14 disposed in the paper conveyance path 13. And a mechanism 16 that closely conveys and conveys the paper. In the platen unit 16, the thermal roll paper 11 guided by the idle roller 14 is conveyed and inserted into the printing position of the printing (thermal head) unit 17 by the platen roller 161 made up of a driving roller. The platen roller 161 is connected to a drive motor (not shown) by power transmission means such as a gear (not shown), and controls the supply of the thermal roll paper 11 by a predetermined rotation operation. Further, the printing unit 17 is composed of a thermal head 171 having a large number of heating elements, and selectively heats the heating elements in accordance with print data from a print driver (not shown), on the thermal roll paper 11. Perform thermal transfer printing.

  In the cutter mechanism section shown in detail in FIGS. 1 and 2, a cutter section 19 is disposed as a cutting means at the conveyance and discharge destination of the thermal roll paper 11 printed by the printing section 17. The cutter unit 19 is called a rotary cutter and includes a rotary blade 192 and a fixed blade 191. The rotary blade 192 is rotatably supported at a predetermined rotation angle so as to be able to reciprocate as indicated by an arrow 194 in order to cut a predetermined receipt length. The fixed blade 191 and the rotary blade 192 provide a gap 21 through which the end of the thermal roll paper 11 of the receipt can pass during the receipt printing operation by the printing unit 17 to complete the printing operation and pass through the gap 21. After the heat-sensitive roll paper 11 has reached a predetermined length, the heat-sensitive roll paper 11 is cut into a predetermined length by a turning operation indicated by an arrow 194 of the rotary blade 192 to obtain a receipt.

  In the present embodiment, as shown in FIG. 2, an elastic member that is slightly higher than the cutting edge of the fixed blade 191, that is, has a gap 21 a from the rotary blade 192 and elastically deforms in response to the rotational rise of the rotary blade 192. The guide 30 faces the upper surface of the rotary blade 192, and its one end is fixed to the end of the protective cover 25 of the cutter unit 19. With this configuration, in order to cut the printed heat-sensitive roll paper 11, the traveling direction of the issued receipt (the leading portion of the heat-sensitive roll paper 11) 22 that has passed through the gap 21 is the upper surface of the rotary blade 192 and the upper surface thereof. It is restrained by the opposing elastic member guide 30 and is reliably guided in the direction of the fixed end of the elastic member guide 30 on the receipt outlet side.

  After the leading end portion of the heat-sensitive roll paper 11 is reliably moved to the discharge port side, it is cut into a predetermined length by the rotary blade 192 and the fixed blade 191 of the rotary cutter described above, and a receipt is issued. As shown in FIG. 2, the issued receipt 23 stops in a state where the length L from the position immediately after the cutting position of the rotary cutter to the exit of the protective cover 25 remains inside the machine. Normally, issued receipts discharged to the outside of the machine are taken out of the machine by manual work. Or it will fall to the saucer which is provided near the exit and which is not illustrated.

  When the cutting is completed, the rotary blade 192 returns to the position having the original gap 21, and the elastic member guide 30 that has been elastically deformed in response to the increase in the rotation of the rotary blade 192 also rotates with the gap 21a. It returns to the original position facing the upper surface of the blade 192. Thereafter, the cutter unit 19 stands by until the next printed receipt enters for cutting.

  According to the present embodiment, by providing the receipt guiding member constituted by the elastic member guide 30, even if a collision between receipts occurs, the elastic member guide 30 is placed in the cutter rear space 24 of the protective cover 25. Predetermined discharge is possible without advancing the receipt 22 being issued, and receipt jam can be prevented.

  The elastic member guide 30 of the receipt jam prevention mechanism illustrated in FIGS. 1 and 2 has been described in the configuration example in the case where a plate spring made of metal or the like is used as the elastic member. Needless to say, the rotary blade 192 can be made of a material such as a rubber material or a sponge that is deformed as the rotary blade 192 rotates and returns to the original shape when the rotary blade 192 is returned to the starting position.

(Second embodiment)
FIG. 3 illustrates the configuration of a receipt jam prevention mechanism of a printing apparatus according to the second embodiment of the present invention. The same parts as those in FIG.

  The lever guide 31 shown in FIG. 3 has a lever 32 having rigidity such as metal or plastic, and a screw that urges a reaction force when the lever 32 rotates and returns in accordance with the rotating operation of the rotary blade 192. A torsion coil spring 33, a pin 34 that supports the torsion spring 33 and serves as a rotating shaft of the lever 32, and a stopper 35 that prevents and restricts the development of the lever 32 by the torsion coil spring 33 at a predetermined position. The lever guide 31 is fixed by attaching its pin 34 to the end of the protective cover 25 of the cutter unit 19 as a shaft.

  In the present embodiment, immediately before cutting by the rotary cutter, the lever 32 is biased by the torsion coil spring 33 at a position slightly higher than the cutting edge of the fixed blade 191, that is, from the rotary blade 192 to the position of the stopper 35 that forms the gap 21 a. Being stationary and waiting.

  When the cutting of the receipt is started by the activation of the rotary blade 192, the lever 32 urged by the torsion coil spring 33 corresponding to the rotational rise of the rotary blade 192 is fixed to the end of the protective cover 25 by the pin 34. Then, the receipt is sandwiched and moved so as to be pushed up together with the rotary blade 192.

  As a result, for the cutting of the thermal roll paper 11, the direction of travel of the issued receipt that has passed through the gap 21 (the leading portion of the thermal roll paper 11) is the upper surface of the rotary blade 192 and the lever 32 that opposes the upper surface. And is surely guided in the direction of the fixed end of the lever 32 on the receipt outlet side.

  After the leading end portion of the heat-sensitive roll paper 11 is reliably moved to the discharge port side, it is cut into a predetermined length by the rotary blade 192 and the fixed blade 191 of the rotary cutter described above, and a receipt is issued. As shown in FIG. 2, the issued receipt 23 stops in a state where the length L from the position immediately after the cutting position of the rotary cutter to the exit of the protective cover 25 remains inside the machine. Normally, issued receipts discharged to the outside of the machine are taken out of the machine by hand.

  When the cutting is completed, the rotary blade 192 returns to the position having the original gap 21, and the lever 32 moved in response to the rotation of the rotary blade 192 also has the gap 21 a on the upper surface of the rotary blade 192. Return to the opposite position. Thereafter, the cutter unit 19 stands by until the next printed receipt enters for cutting.

  The next printed receipt 22 (the leading portion of the thermal roll paper 11) is a gap 21 formed by the fixed blade 191 and the rotary blade 192, and further, a gap 21a formed by the lever 32 being restricted by the stopper 35 and the fixed blade 191. Is sent out by the platen roller 161. At this time, even if the previously issued receipt remains without being removed, the advancing direction is restricted by the opposing planes of the lever 32 and the fixed blade 191, so that the printed receipt 22 (the thermal roll paper 11) is printed. The leading portion is reliably moved to a predetermined receipt outlet without resisting the remaining receipt.

  According to the present embodiment, the protective cover is provided even if a collision between receipts occurs by providing a delivery path on the upper surface of the receipt guiding lever 32 and the rotary blade 192 so as to regulate the traveling direction of the printed receipt. Thus, a predetermined sheet can be discharged without entering the issuance receipt into the cutter rear space 24 of 25, and a receipt jam can be prevented.

  In addition, according to the present embodiment, the lever 32 that is in contact with the receipt being issued is made of a rigid member, so that the function is maintained even when a large load is applied, or the member has a small friction coefficient. Thus, it is possible to increase the degree of freedom in selecting the member characteristics such as reducing the movement resistance during delivery, and to prevent stable receipt jam without changing over time over a long period of time.

FIG. 3 is a schematic configuration diagram of a printing mechanism unit, a cutter mechanism unit, and a receipt jam prevention mechanism according to an embodiment of the present application. The detailed block diagram of the cutter mechanism part and receipt jam prevention mechanism of this embodiment. The detailed block diagram of the cutter mechanism part and receipt jam prevention mechanism of other embodiment. FIG. 3 is a schematic configuration diagram of a general printing device of a conventional receipt issuing machine or a register. FIG. 6 is a situation diagram of a receipt jam when a collision X occurs in a conventional cutter mechanism.

Explanation of symbols

11 ... heat-sensitive roll paper,
12: Paper storage unit,
13: Paper transport path,
14 ... Idle roller,
16: Platen (paper transport mechanism) section,
17: Printing (thermal head) section,
19 ... Rotary cutter part,
21, 21a...
22 ... Receipt during issue,
22x: Receipt collision X during issuance,
23 ... Issued (cut) receipt,
24: Cutter rear space,
25 ... Protective cover,
30 ... elastic member guide,
31 ... Lever guide,
32 ... Lever,
33 ... Torsion coil spring,
34 ... pin,
35 ... stopper,
161 ... Platen roller,
171 ... Thermal head,
191 ... fixed blade,
192 ... rotary blade,
194: An arrow indicating the operation of the rotary blade.

Claims (3)

A printing unit that prints on thermal roll paper, a cutter unit that includes a rotary cutter that cuts the printed thermal roll paper into a receipt having a predetermined length, and a protective cover that secures a rotational working space of the rotary cutter. A receipt print issuing device configured as described above,
During the feeding operation of the printed thermal roll paper, a gap through which the thermal roll paper can pass is formed facing the rotary blade of the rotary cutter, and when the thermal roll paper is cut, according to the rotating operation of the rotary blade, A receipt provided with a receipt jam prevention mechanism, characterized in that an elastic member guide that is elastically deformed inwardly of a space formed by the protective cover is configured by attaching an end thereof to a receipt discharge side end of the protective cover. Print issuing device.   2. The receipt print issuing apparatus according to claim 1, wherein the elastic member guide is one of a metal spring plate, a rubber plate, and a rubber sponge body. A printing unit that prints on thermal roll paper, a cutter unit that includes a rotary cutter that cuts the printed thermal roll paper into a receipt having a predetermined length, and a protective cover that secures a rotational working space of the rotary cutter. A receipt print issuing device configured as described above,
During the feeding operation of the printed thermal roll paper, a lever body having rigidity that forms a gap through which the thermal roll paper faces the rotary blade of the rotary cutter, and
A stopper for restricting the lever body to a position where the gap is formed;
A shaft pin that attaches the lever body to the receipt discharge side end of the protective cover according to the turning operation of the rotary blade when cutting the thermal roll paper;
A torsion spring body that generates an urging force corresponding to the backward movement of the pivoting operation to the inside of the space formed by the protective cover and is arranged around the shaft pin;
A receipt print issuing device comprising a receipt jam prevention mechanism.