JP7269809B2 - media issuing device - Google Patents

Description

The present invention relates to a medium issuing device that conveys a medium and prints on the medium with a print head.

Patent Literature 1 discloses a medium issuing device (card issuing machine) that issues card-type media such as tickets. The card issuing machine of Patent Literature 1 takes in a long medium, cuts it, and sets it in a card waiting section. When the card issue command is received, the transport motor is driven, and the card cut from the medium to a predetermined length is sent to the transport path. The card is transported to the positions of the recording head and print head for recording magnetic data, and the magnetic data is recorded and printed on the card before it is ejected from the card issue port.

JP 2006-240763 A

In the medium issuing device, the print head is attached to a frame or the like and positioned in the transport path by the biasing force of a spring or the like. Therefore, the print head is located at a position that is difficult to access from the outside of the apparatus, and maintenance and replacement are time-consuming.

In view of the above problems, an object of the present invention is to facilitate maintenance and replacement of the print head.

In order to solve the above-mentioned problems, the medium issuing device of the present invention includes: a frame provided with a transport path for transporting a medium; a first closed position rotatably supported by the frame and defining the transport path; a first frame that is rotatable between a first open position that opens a conveying path; a second closed position that is rotatably supported by the first frame and tilts toward the first frame; a second frame pivotable between an upright second open position; a print head disposed in the second frame; connecting the first frame and the second frame; and an elastic member that biases toward the closed position.

According to the invention, the printhead is mounted on the first frame via the second frame. The first frame defines a transport path, and the transport path can be opened by pivoting the first frame. Therefore, the media clogged in the transport path can be easily removed. Further, by opening the transport path, the print head arranged in the transport path can be cleaned. Further, when the second frame on which the print head is mounted is rotated with respect to the first frame, the print head is separated from the member defining the transport path. Therefore, replacement and maintenance of the print head can be easily performed. The second frame is positioned at the second closed position, which is tilted toward the first frame that defines the transport path, by the biasing force of the elastic member. Therefore, the print head can be positioned on the transport path while the second frame is configured to be rotatable with respect to the first frame.

In the present invention, the first frame is provided with a guide plate that defines the transport path, and the print head is pressed against the guide plate by the elastic member so as to move toward the transport path from an opening provided in the guide plate. protrude to By doing so, the print head can be positioned with respect to the guide plate that defines the transport path. Therefore, the print head can be positioned at the basic position where the tip of the print head is pressed against the platen roller.

In the present invention, it is preferable that the elastic member is detachably connected to at least one of the first frame and the second frame. By doing so, the elastic member can be removed to release the biasing force. As a result, the second frame can be rotated with respect to the first frame, so that the print head can be replaced or maintained.

In the present invention, it is preferable that a screw for attaching and detaching the elastic member to and from the second frame is attachable and detachable through a work hole provided in the first frame. In this way, the elastic member can be removed by working from the outside of the first frame. Therefore, the biasing force can be easily released.

In the present invention, it is preferable that the second frame has an adjusting mechanism for adjusting the inclination of the print head with respect to the transport path. By doing so, the inclination of the print head can be easily adjusted.

In the present invention, the second frame includes a pair of arms extending parallel to the transport path and a head mounting member disposed between the pair of arms, the print head being fixed to the head mounting member, The adjustment mechanism includes a connecting portion that rotatably connects the head mounting member to the pair of arms, a long hole provided in one of the pair of arms and the head mounting member, and the pair of arms. and a fixing hole provided in the other of the head mounting members. With this configuration, when the head mounting member is fixed to the second arm, the mounting angle of the head mounting member centered on the connecting portion can be adjusted by moving the fixing hole within a range overlapping with the elongated hole. Therefore, the mounting angle of the print head can be adjusted.

According to the invention, the printhead is mounted on the first frame via the second frame. The first frame defines a transport path, and the transport path can be opened by pivoting the first frame. Therefore, the media clogged in the transport path can be easily removed. Further, by opening the transport path, the print head arranged in the transport path can be cleaned. Further, when the second frame on which the print head is mounted is rotated with respect to the first frame, the print head is separated from the member defining the transport path. Therefore, replacement and maintenance of the print head can be easily performed. The second frame is positioned at the second closed position, which is tilted toward the first frame that defines the transport path, by the biasing force of the elastic member. Therefore, the print head can be positioned on the transport path while the second frame is configured to be rotatable with respect to the first frame.

1 is an external perspective view of a medium issuing device according to an embodiment of the present invention; FIG. 2 is an explanatory diagram showing the internal configuration of the medium issuing device of FIG. 1; FIG. FIG. 4 is a perspective view of the medium issuing device with the print head support frame pivoted upward; FIG. 4 is a perspective view of the medium issuing device with the second frame pivoted with respect to the first frame; 4 is a perspective view of a print head support frame; FIG. FIG. 4 is a perspective view of the printhead support frame with the second frame pivoted relative to the first frame; FIG. 4A is a side view of the print head support frame with the second frame pivoted with respect to the first frame, and a partially enlarged view thereof;

An embodiment of a medium issuing device to which the present invention is applied will be described below with reference to the drawings.

(overall structure)
FIG. 1 is an external perspective view of a medium issuing device 1 according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the internal configuration of the medium issuing device in FIG. 1, and is a cross-sectional view taken along the line AA in FIG. A medium issuing device 1 conveys a medium 3 (see FIG. 2) obtained by cutting a long continuous medium 2 into a predetermined length along a conveying path 4, and prints with a print head 5 provided in the middle of the conveying path 4. It is a device for printing and ejecting from the medium issuing port 6 . A reading unit 7 is provided between the print head 5 and the medium issue port 6 to read the result of printing on the medium 3 (for example, a two-dimensional bar code). The medium issuing device 1 is used, for example, as a device that issues a toll road ticket or a device that issues a parking ticket at the entrance of a parking lot.

In this specification, the three directions of XYZ are orthogonal to each other. The X direction is the width direction of the transport path 4. One side of the X direction is the +X direction and the other side is the -X direction. The Y direction is the longitudinal direction of the medium issuing device 1, the +Y direction is the front, and the -Y direction is the rear. The medium issuing port 6 is provided at the front end of the medium issuing device 1 (the end in the +Y direction). The Z direction is the height direction (vertical direction) of the medium issuing device 1 . The +Z direction is upward and the −Z direction is downward.

As shown in FIGS. 1 and 2, the medium issuing device 1 includes a medium loading unit 9 arranged at the rear end of the device (end in the −Y direction), and a medium loading unit 9 located above the medium loading unit 9 (+Z direction). a conveying path 4 from the cutter mechanism 8 to the medium issuing port 6; a print head 5 and a reading unit 7 arranged on the conveying path 4; and a branch position B between the print head 5 and the reading unit 7. (see FIG. 2); a recovery unit 15 for recovering the medium 3 sent from the transport path 4 to the branch path 11 by the switching mechanism 10; a transport mechanism 20 for transporting the medium 3; A sensor 30 for detecting 3 is provided.

The continuous medium 2 is set on the lower side (-Z side) of the medium loading section 9 and loaded into the medium loading section 9 . The continuous medium 2 is set in a rolled form, or in a zigzag form in which the medium is folded back at predetermined lengths and stacked. The medium take-in unit 9 feeds the medium 3 to the cutter mechanism 8 . The medium 3 is cut to a predetermined length when passing through the cutter mechanism 8 and supplied to the transport path 4 .

As shown in FIG. 2, the transport path 4 includes a first transport path portion 4A extending from the cutter mechanism 8 in the +Z direction and curved in the +Y direction to a position where it passes the print head 5, and a first transport path portion 4A extending from the print head 5 in the +Y direction. It has a second transport path portion 4B that extends linearly to the medium issuing port 6. - 特許庁The reading unit 7 is arranged in the second conveying path portion 4B.

The transport mechanism 20 transports the medium 3 on the transport path 4 in a direction toward the medium issuing port 6 and in a direction opposite to the direction toward the medium issuing port 6 . The transport mechanism 20 includes a print transport section 20A that transports the medium 3 along a first transport path portion 4A from the cutter mechanism 8 to the print head 5, and a second transport path portion 4B that extends from the print head 5 to the medium issuing port 6. 3 is provided. As shown in FIG. 2, the print transport section 20A includes three sets of roller pairs 22, 23 and 24 and a platen roller 25. As shown in FIG. The roller pairs 22, 23, 24 and the platen roller 25 are synchronously driven by the driving mechanism 21A. The drive mechanism 21A includes a motor 18A as a drive source and a belt mechanism 19A (see FIG. 1) driven by the motor 18A.

The issue transport section 20B includes three sets of roller pairs 26, 27, and 28 arranged along the second transport path portion 4B of the transport path 4, and a branch path 11 extending from the branch position B of the transport path 4 to the collecting section 15. , a pair of rollers 29 arranged in the . The roller pairs 26, 27, 28, 29 are synchronously driven by the driving mechanism 21B. The drive mechanism 21B includes a motor 18B as a drive source and a belt mechanism 19B (see FIG. 1) driven by the motor 18B. The issue transport section 20B includes a motor 18B that is a drive source independent of the print transport section 20A. Note that the drive mechanisms 21A and 21B may be mechanisms that transmit the rotation of the motor through a train wheel.

As shown in FIG. 2 , each roller pair includes a first roller 61 to which driving force from a driving source is transmitted, and a second roller 62 facing the first roller 61 . The second roller 62 is pressed against the first roller 61 by a pressing mechanism 63 . The first roller 61 is supported by a first roller shaft 610 arranged at the center of rotation of the first roller 61 . A center shaft 630 arranged at the center of the second roller 62 is fixed to the arm member 66 capable of swinging about a second roller shaft 620 parallel to the first roller shaft 610 . The pressing mechanism 63 presses the second roller 62 against the first roller 61 by urging the arm member 66 toward the first roller 61 .

The belt mechanism 19A rotates integrally with three pulleys 191 fixed to the first roller shafts 610 of the roller pairs 22, 23, and 24, a pulley 192 fixed to the output shaft of the motor 18A, and the platen roller 25. A pulley 193 is provided. A drive belt 195 is stretched over the pulleys 191 , 192 , 193 .

Similarly, the belt mechanism 19B includes four pulleys 196 fixed to the first roller shafts 610 of the roller pairs 26, 27, 28, 29, a pulley 197 fixed to the output shaft of the motor 18B, and a plurality of guides. It has a pulley 194 and a drive belt 198 that is stretched over pulleys 196 , 197 and a guide pulley 194 .

A sensor 30 detects the medium 3 passing through the transport path 4 . Although the sensor 30 is an optical sensor in this embodiment, a sensor of another detection method may be used. A plurality of sensors 30 are arranged in the medium issuing device 1 from the cutter mechanism 8 side toward the medium issuing port 6 side. The plurality of sensors 30 are arranged such that the interval between the sensors 30 adjacent in the transport direction is smaller than the length of the medium 3 in the transport direction.

The print head 5 faces the platen roller 25 . The print head 5 of this embodiment is a thermal head. The medium issuing device 1 prints on the medium 3 by performing a printing operation with the print head 5 while the medium 3 is sandwiched between the print head 5 and the platen roller 25 .

The reading unit 7 reads the content printed by the print head 5 from the medium 3 passing through the conveying path 4 . In this embodiment, the print head 5 prints a two-dimensional barcode on the medium 3 . The two-dimensional barcode includes information such as the date and time of issue of the medium 3, for example. The reading unit 7 is a barcode reader that reads two-dimensional barcodes. The medium issuing device 1 includes a control unit (not shown) that determines whether the printed two-dimensional barcode is correct based on the information read by the reading unit 7 . When the control unit determines that the two-dimensional barcode is not printed correctly, the medium 3 is transported in the direction opposite to the direction toward the medium issuing port 6, and sent to the branch path 11 by the switching mechanism 10. , to the recovery unit 15 .

The switching mechanism 10 includes a flapper 12 arranged at the branch position B of the transport path 4 and a solenoid (not shown) that drives the flapper 12 . The flapper 12 is supported swingably in the Z direction. The switching mechanism 10 switches between a state in which the +Y direction end of the flapper 12 protrudes into the transport path 4 and a state in which the flapper 12 is retracted from the transport path 4 by turning ON/OFF the energization of the solenoid. When collecting the medium 3 to the collection unit 15 , the +Y direction end of the flapper 12 is switched to a state in which it protrudes to the transport path 4 . In this state, the medium 3 fed backward from the reading unit 7 in the -Y direction is caused to enter the branch path 11 at the branch position B. FIG. The medium 3 that has entered the branch path 11 drops into the recovery section 15 after passing through the roller pair 29 . When the medium 3 is conveyed to the medium issuing port 6 side, the flapper 12 is switched to a state in which it is retracted from the conveying path 4 .

(flame)
As shown in FIG. 1 , the medium issuing device 1 includes a frame 40 that supports the above mechanisms for processing the medium 3 . The frame 40 includes an upper frame 40A that defines the transport path 4, and a lower frame 40B arranged below the upper frame 40A (-Z side). The lower frame 40B includes a pair of parallel lower side plates 41 and 42 facing each other in the X direction, and a medium intake section support frame 43 arranged on the −Y direction side of the lower side plates 41 and 42 .

The upper frame 40A includes a pair of side plates 44 and 45 extending parallel to the Y direction and a plurality of width defining shafts 46 that define the distance between the pair of side plates 44 and 45 in the X direction. The side plates 44 and 45 face each other in the X direction, and the width of the transport path 4 is defined by the side plates 44 and 45 . Side plates 44 and 45 are screwed to upper end portions of lower side plates 41 and 42 . The width regulating shaft 46 extends in a direction (X direction) orthogonal to the transport path 4 and is arranged between the side plates 44 and 45 . The side plates 44 and 45 are screwed to both ends of the width defining shaft 46 .

As shown in FIG. 1, between the side plates 44 and 45 are a first guide portion 47A extending in the Y direction along one side plate 44 and a second guide portion extending in the Y direction along the other side plate 45. 47B is arranged. Each of the first guide portion 47A and the second guide portion 47B includes a pair of guide plates 481 and 482 (see FIG. 2) that define the top and bottom of the transport path 4. As shown in FIG. A pair of guide plates 481 and 482 face each other in the Z direction with a gap through which the medium 3 passes.

As shown in FIG. 1, a print head support frame 50 on which the print head 5 is mounted and a rectangular parallelepiped housing 70 are attached to the upper end portions of the side plates 44 and 45 . The print head support frame 50 is arranged above the first transport path portion 4A of the transport path 4 . The print head support frame 50 is rotatable in the vertical direction (Z direction) about a first shaft 51 arranged at the ends of the side plates 44 and 45 in the -Y direction. The housing 70 is arranged above the second transport path portion 4B and screwed to the upper end portions of the side plates 44 and 45 . As shown in FIG. 2, the housing 70 accommodates the reading section 7 therein.

(Print head support frame)
FIG. 3 is a perspective view of the medium issuing device 1 with the print head support frame 50 pivoted upward. FIG. 4 is a perspective view of the medium issuing device 1 in which the second frame 520 is pivoted with respect to the first frame 510. FIG. The print head support frame 50 has a closed position 50A (see FIG. 1) extending in the Y direction along the upper end portions of the side plates 44 and 45, and an open position 50B (see FIG. 3) rising upward (+Z direction) from the first shaft 51. ). When printing on the medium 3, the print head support frame 50 is moved to the closed position 50A, and the hook 53 (see FIG. 3) arranged at the tip of the print head support frame 50 in the +Y direction is attached to the upper frame 40A. It is locked to a provided locking portion (not shown). This locks the print head support frame 50 in the closed position 50A. At the closed position 50A, the upper side of the first transport path portion 4A is defined by the print head support frame 50, and the print head 5 mounted on the print head support frame 50 faces the platen roller 25 (see FIG. 2).

The print head support frame 50 has a finger hook portion 55 protruding from the tip in the +Y direction. By lifting the finger hooking portion 55, the hook 53 is released from the engaging portion, so that the print head support frame 50 is unlocked. Therefore, the opening/closing operation of the print head support frame 50 can be performed. As shown in FIG. 3, when the print head support frame 50 is moved to the open position 50B, the print head 5 is separated from the platen roller 25 and the transport path 4 is opened.

5 is a perspective view of the print head support frame 50. FIG. As shown in FIGS. 1 and 5, the print head support frame 50 includes a first frame 510 that can turn vertically (in the Z direction) around a first shaft 51 that is supported by the side plates 44 and 45; A second frame 520 is provided which is pivotable with respect to the first frame 510 around a second shaft 52 supported by the frame 510 . The second axis 52 is parallel to the first axis 51 . The second frame 520 extends in the +Y direction from the second axis 52 inside the first frame 510 . The print head 5 is arranged at the end of the second frame 520 in the +Y direction.

The first frame 510 has a first closed position 510A (see FIGS. 1 and 4) where a part of the first frame 510 (a guide plate 513 described later) defines the transport path 4, and a first closed position 510A (see FIGS. 1 and 4) where the transport path 4 is opened. It is pivotable between open positions 510B (see FIG. 3). When the transport path 4 is opened and closed, the entire print head support frame 50 is rotated by rotating the first frame 510 around the first shaft 51 . When the print head support frame 50 is positioned at the closed position 50A, the first frame 510 is positioned at the first closed position 510A. When the print head support frame 50 is positioned at the open position 50B, the first frame 510 is positioned at the first open position 510B. The second frame has a second closed position 520A (see FIGS. 1 and 5) that falls toward the first frame 510, and a second open position 520B that rises upward from the first frame 510 (see FIGS. 4 and 6). It is possible to turn between Note that the second open position 520B may be a position different from the positions shown in FIGS. For example, a position in which the second frame 520 is tilted rearward (-Y direction) from the positions shown in FIGS.

As shown in FIG. 5, the first frame 510 is arranged between a pair of parallel first arms 511 and 512 rotating about the first axis 51 and the tips of the first arms 511 and 512 in the +Y direction. The operating member 519 is provided. The operation member 519 has a projecting portion that functions as the finger hook portion 55 described above. The operating member 519 is attached to a shaft member 518 whose both ends are supported by the first arms 511 and 512 . Hooks 53 are fixed to both ends of the shaft member 518 . In the first frame 510, when the finger hooking portion 55 is lifted, the operation member 519 and the hook 53 rotate together.

As shown in FIG. 3 , the first frame 510 has a guide plate 513 arranged between the first arms 511 and 512 . The guide plate 513 is arranged on the transport path 4 side with respect to the second frame 520 and the print head 5 . As shown in FIG. 2, when the first frame 510 is moved to the first closed position 510A, the guide plate 513 defines the upper portion of the first transport path portion 4A. As will be described later, a coil spring 54 as an elastic member is bridged between the first frame 510 and the second frame 520 . The coil spring 54 biases the second frame 520 toward the second closed position 520A. Therefore, the coil spring 54 urges the second frame 520 in the direction of pressing the print head 5 against the guide plate 513 . The print head 5 is positioned by the biasing force of the coil spring 54 so as to protrude from the opening 514 provided in the guide plate 513 toward the transport path 4 .

As shown in FIGS. 5 and 6, the second frame 520 is provided between a pair of second arms 521 and 522 that can turn about the second shaft 52 and the tips of the second arms 521 and 522 in the +Y direction. A head mounting member 56 is arranged, and a shaft member 523 is arranged parallel to the second shaft 52 between the head mounting member 56 and the second shaft 52 . The print head 5 is fixed to the second arms 521 and 522 via the head mounting member 56 . Both ends of the shaft member 523 are detachably fixed to the second arms 521 and 522 . As shown in FIGS. 2 and 6, the first frame 510 includes a shaft member 515 arranged below the shaft member 523, and both ends of the shaft member 515 are fixed to the pair of first arms 511 and 512. be done. Two coil springs 54 are stretched between the shaft members 523 and 515 in a state of being stretched beyond the free length. Therefore, the biasing force of the coil spring 54 acts in the direction of biasing the print head 5 toward the transport path 4 via the second frame 520 . A platen roller 25 is provided on the transport path 4 at a position facing the print head 5 . Accordingly, the print head 5 is urged toward the platen roller 25 by the coil spring 54 .

FIG. 6 is a perspective view of the printhead support frame 50 with the second frame 520 pivoted with respect to the first frame. In this embodiment, the two coil springs 54 are detachably connected to the second frame 520 . The biasing force of the coil spring 54 can be released by removing the shaft member 523 to which one end of the coil spring 54 is locked from between the second arms 521 and 522 . As shown in FIGS. 1 and 5 , the first arms 511 and 512 are provided with working holes 516 located outside the shaft member 523 . Therefore, it is possible to remove the screw 524 that fixes the shaft member 523 to the second arms 521 and 522 by inserting a tool through the working hole 516 and release the biasing force of the coil spring 54 . As a result, as shown in FIGS. 4 and 6, the second frame 520 on which the print head 5 is mounted is turned upward while the shaft member 523 and the two coil springs 54 remain inside the first frame 510. can be made

In addition, in this embodiment, the two coil springs 54 are detachably connected to the first frame 510 via the shaft member 515 . Therefore, instead of removing the shaft member 523 to which the upper end of the coil spring 54 is locked from the second arms 521 and 522, the shaft member 515 to which the lower end of the coil spring 54 is locked is removed from the first arms 511 and 512. , the biasing force of the coil spring 54 can also be released.

As shown in FIG. 6, the print head 5 is fixed to the head mounting member 56 by two head mounting screws 525 . The head mounting member 56 includes a first plate portion 561 screwed to the print head 5 , a second plate portion 562 bent substantially perpendicularly to the first plate portion 561 , and arranged on the +X side of the print head 5 . and a fourth plate portion 564 arranged on the −X side of the print head 5 . The third plate portion 563 is arranged between the second arm 521 and the print head 5 and extends parallel to the second arm 521 . The fourth plate portion 564 is arranged between the second arm 522 and the print head 5 and extends parallel to the second arm 522 . When the second frame 520 is rotated in a direction in which it rises from the first frame 510, the head mounting member 56 moves from the inside of the first frame 510 to above the first frame 510. Screw 525 becomes accessible. Therefore, the print head 5 can be removed from the first plate portion 561, and replacement and maintenance of the print head 5 can be performed.

(Adjusting the tilt of the print head)
7A is a side view of the print head support frame 50 with the second frame 520 pivoted with respect to the first frame 510, and is a side view of the print head support frame 50 of FIG. 6. FIG. FIG. 7(b) is a partially enlarged view of region C in FIG. 7(a). The second frame 520 has an adjustment mechanism 57 that adjusts the tilt of the print head 5 . The adjustment mechanism 57 adjusts the inclination of the print head 5 by adjusting the inclination of the head mounting member 56 with respect to the second arms 521 and 522 . The adjusting mechanism 57 includes a connecting portion 571 that rotatably connects the head mounting member 56 to the second arms 521 and 522 , long holes 572 provided in the second arms 521 and 522 , and the head mounting member 56 . and a fixed hole 573 . In this embodiment, the connecting portion 571 is provided at two locations: a reference hole (not shown) penetrating the second arm 521 and the third plate portion 563, and a reference hole penetrating the second arm 522 and the fourth plate portion 564. It is configured to be connected through a screw.

As shown in FIG. 7B, the fixing hole 573 overlaps with the long hole 572. As shown in FIG. FIG. 7(b) shows a state where the screws are removed from the elongated hole 572 and the fixing hole 573. FIG. The adjusting mechanism 57 adjusts the inclination angle θ of the head mounting member 56 centering on the connecting portion 571 by adjusting the position of the fixing hole 573 within the elongated hole 572 and screwing.

As shown in FIGS. 6 and 7, when the second frame 520 is pivoted from the first frame 510 to a standing posture, the adjustment mechanism 57 and the print head 5 move upward from the inside of the first frame 510 and are exposed. Therefore, the inclination of the print head 5 can be easily adjusted.

Further, as shown in FIG. 5, the first frame 510 is provided with a work hole 517 in a portion that covers the adjustment mechanism 57 from the outside when the second frame 520 is laid down inside the first frame 510 . For example, in this embodiment, working holes 517 are provided in the first arms 511 and 512 . Therefore, the tool is inserted into the working hole 517 from the outside of the first frame 510 while the second frame 520 is not rotated in the upward direction from the first frame 510, but remains in the second closed position 520A, and the print head is rotated. It is also possible to adjust the slope of 5.

(Main functions and effects of this embodiment)
As described above, the medium issuing device 1 of the present embodiment includes the upper frame 40A provided with the transport path 4 for transporting the medium 3, and the first closing member rotatably supported by the upper frame 40A and defining the transport path 4. A first frame 510 that can turn between a position 510A and a first open position 510B that opens the transport path 4; 520A and a second open position 520B rising from the first frame 510, the print head 5 arranged on the second frame 520, and the first frame 510 and the second frame 520 are connected. and a coil spring 54 that is an elastic member that biases the second frame 520 toward the second closed position 520A.

In this embodiment, the print head 5 is mounted on the first frame 510 via the second frame 520 as described above. The first frame 510 defines the transport path 4 , and the transport path 4 can be opened by turning the first frame 510 . Therefore, the media 3 jammed in the transport path 4 can be easily removed. Further, by opening the transport path 4, the print head 5 arranged on the transport path 4 can be cleaned. Further, when the second frame 520 on which the print head 5 is mounted is rotated with respect to the first frame 510 , the print head 5 is separated from the first frame 510 defining the transport path 4 . Therefore, replacement and maintenance of the print head 5 can be easily performed. The second frame 520 is positioned at a second closed position 520A that is tilted toward the first frame 510 defining the transport path 4 by the biasing force of the coil spring 54 . Therefore, the print head 5 can be positioned on the transport path 4 while the second frame 520 is configured to be rotatable with respect to the first frame 510 .

Further, in this embodiment, the first frame 510 includes a guide plate 513 that defines the transport path 4, and the print head 5 is pressed against the guide plate 513 by the coil spring 54, and the opening 514 provided in the guide plate 513 is pushed. , to the transport path 4 side. Accordingly, since the print head 5 can be positioned with respect to the guide plate 513 that defines the transport path 4 , the print head 5 can be positioned at the basic position within the transport path 4 .

In this embodiment, the coil spring 54 is detachably connected to the first frame 510 and the second frame 520 . Therefore, the urging force can be released by removing the coil spring 54 . Since the second frame 520 can be turned with respect to the first frame 510 by releasing the biasing force, the print head 5 can be replaced or maintained.

In this embodiment, a screw 524 for attaching and detaching the coil spring 54 to and from the second frame 520 can be attached and detached from a working hole 516 provided in the first frame 510 . Therefore, since the coil spring 54 can be removed by working from the outside of the first frame 510, the urging force can be easily released.

In this embodiment, the second frame 520 has an adjustment mechanism 57 that adjusts the inclination of the print head 5 with respect to the transport path 4 . Therefore, the tilt of the print head 5 can be easily adjusted.

In this embodiment, the second frame 520 includes a pair of second arms 521 and 522 extending parallel to the transport path 4 and a head mounting member 56 arranged between the pair of second arms 521 and 522. The print head 5 is fixed to the member 56 . The adjustment mechanism 57 includes a connecting portion 571 that rotatably connects the head mounting member 56 to the second arms 521 and 522 , long holes 572 provided in the second arms 521 and 522 , and the head mounting member 56 . and a fixed hole 573 . With this configuration, when the head mounting member 56 is fixed to the second arms 521 and 522, the fixing hole 573 is moved within a range overlapping with the elongated hole 572, so that the head mounting member 56 can be fixed around the connecting portion 571. Mounting angle can be adjusted. Therefore, the mounting angle of the print head 5 can be adjusted.

Note that the adjusting mechanism 57 may be configured such that the head mounting member 56 is provided with the long hole 572 and the second arms 521 and 522 are provided with the fixing holes 573 .

DESCRIPTION OF SYMBOLS 1... Medium issuing apparatus, 2... Continuous medium, 3... Medium, 4... Conveying path, 4A... First conveying path part, 4B... Second conveying path part, 5... Print head, 6... Medium issuing port, 7... Reading Part 8... Cutter mechanism 9... Medium take-in part 10... Switching mechanism 11... Branch path 12... Flapper 15... Collecting part 18A, 18B... Motor 19A, 19B... Belt mechanism 20... Conveying mechanism 20A... print conveying unit 20B... issue conveying unit 21A, 21B... drive mechanism 22, 23, 24... roller pair 25... platen roller 26, 27, 28, 29... roller pair 30... sensor 40... frame , 40A... Upper frame, 40B... Lower frame, 41, 42... Lower side plate, 43... Medium intake part support frame, 44, 45... Side plate, 46... Width regulation shaft, 47A... First guide part, 47B... Second guide Part 49 Gap 50 Print head support frame 50A Closed position 50B Open position 51 First shaft 52 Second shaft 53 Hook 54 Coil spring (elastic member) 55 Finger hooking portion 56 Head mounting member 57 Adjusting mechanism 61 First roller 62 Second roller 63 Pressing mechanism 66 Arm member 70 Case 191, 192, 193 Pulley 194 Guide pulley 195 Drive belt 196, 197 Pulley 198 Drive belt 510 First frame 510A First closed position 510B First open position 511, 512 First arm 513 Guide plate 514 Opening 515 Shaft member 516, 517 Work hole 518 Shaft member 519 Operation member 520 Second frame 520A Second closed position 520B Second open position 521, 522... Second arm 523... Shaft member 524... Screw 525... Head mounting screw 561... First plate portion 562... Second plate portion 563... Third plate portion 564... Fourth plate portion , 571... Connecting portion 572... Elongated hole 573... Fixed hole 610... First roller shaft 620... Second roller shaft 630... Central axis B... Branch position ?... Inclination angle

Claims (6)

a frame provided with a transport path for transporting a medium;
a first frame rotatably supported by the frame and pivotable between a first closed position defining the transport path and a first open position opening the transport path;
a second frame that is rotatably supported by the first frame and can turn between a second closed position that falls toward the first frame and a second open position that rises from the first frame;
a print head disposed on the second frame;
and an elastic member connecting the first frame and the second frame and biasing the second frame toward the second closed position. The first frame includes a guide plate that defines the transport path,
2. The medium issuing device according to claim 1, wherein the print head is pressed against the guide plate by the elastic member and protrudes toward the transport path from an opening provided in the guide plate. 3. The medium issuing device according to claim 1, wherein the elastic member is detachably connected to at least one of the first frame and the second frame. 4. The medium issuing device according to claim 3, wherein a screw for attaching and detaching said elastic member to and from said second frame is attachable and detachable through a working hole provided in said first frame. 5. The medium issuing device according to any one of claims 1 to 4, wherein the second frame has an adjusting mechanism for adjusting the inclination of the print head with respect to the transport path. the second frame includes a pair of arms extending parallel to the transport path and a head mounting member disposed between the pair of arms,
The print head is fixed to the head mounting member,
The adjustment mechanism includes a connecting portion that rotatably connects the head mounting member to the pair of arms, a long hole provided in one of the pair of arms and the head mounting member, and the pair of arms. 6. The medium issuing device according to claim 5, further comprising a fixing hole provided in the other of said head mounting members.

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