JPH0986000A - Printing equipment - Google Patents

Abstract

(57) [Abstract] [Problem] To perform multiple operations such as tape feeding and cutting operations
Use one drive source. A print head for printing on a print-receiving tape.
6, a platen roller 27 that is pressed against the print head 16 through the print-receiving tape 7 and is rotated in this state to feed the print-receiving tape 7, and a tape winding shaft 18 that winds the print-receiving tape 7. A cutter device 20 for cutting the printed tape 7, a motor 21, a control means for controlling the motor 21, a platen roller 27, and a tape rewinding shaft 1.
8. A drive transmission mechanism 22 for driving the cutter device 20 with a motor 21 is provided. Therefore, one motor 21 is controlled by the control means, and the controlled rotation of the motor 21 is transmitted to the platen roller 27, the tape rewinding shaft 18, the ribbon winding shaft 19, and the cutter device 20 by the drive transmission mechanism 22. , Platen roller 27, tape rewinding shaft 18, ribbon winding shaft 1
9. Each operation of the cutter device 20 is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device.

[0002]

2. Description of the Related Art Conventionally, as a printing apparatus, a handy type has been known in which desired information is easily printed on a tape at a desired location and the printed tape is cut at a predetermined location. In such a printing apparatus, a printing tape cassette provided with a thermal transfer type ink tape and a print-receiving tape is detachably mounted, and the ink tape slidingly contacting the print head is superimposed on the print-receiving tape and pressed against the platen roller, In this state, the platen roller is rotated to feed the ink tape and the print target tape, and the print head is driven according to the information to print the desired information on the print target tape. The structure is such that the parts are cut by a cutter device. Further, in such a printing apparatus, the print head is brought into contact with and separated from the platen roller in conjunction with the opening / closing operation of the opening / closing lid that covers the printing tape cassette so that the printing head can be used as the platen roller when the opening / closing lid is closed. It is pressed.

[0003]

In such a conventional printing apparatus, since the tape feeding by the rotation of the platen roller and the cutter apparatus are separately driven, different driving sources are required, and in the conventional case, When rewinding the printing target tape which has not been performed, another motor is required, and there is a problem that the number of driving sources becomes very large. In addition, in this printing device, if the open / close lid is closed with the printing tape cassette installed, the print head will keep the ink tape and the printing tape in pressure contact with the platen roller. There is a problem that the tape cassette for printing cannot be attached and removed smoothly because the tapes stick to each other or the platen roller or the print head, and high pressure contact force is required when cutting the tape rather than when printing. However, since the print head always presses the platen roller with the same pressure, there is a problem that the print tape cannot be cut well. An object of the present invention is to enable a plurality of operations such as a tape feeding operation and a cutting operation of a cutting unit to be performed by a single drive source, and a print medium can be smoothly attached and detached. It is to ensure that the print medium can be cut reliably and satisfactorily.

[0004]

According to the first aspect of the present invention,
A contact / separation operation unit that relatively moves the print head and the platen toward and away from each other via the print medium, a conveying unit that conveys the print medium, and a cutting unit that cuts the print medium printed by the print head. One drive means, a control means for controlling the one drive means, and a drive transmission means for driving at least two or more of the contact / separation operation means, the conveying means, and the cutting means by the one drive means. Therefore, a plurality of operations such as the contact / separation operation means, the conveying means, the cutting means, etc. can be performed by one drive source. In this case, as described in claim 2, if the drive transmission means is provided with transmission switching means for switching the drive of the driving means to a state in which it can be transmitted to any one of the contact / separation operation means, the conveying means, and the cutting means, Each means can be operated by one drive source as needed. Particularly, as described in claim 3, the transmission switching means comprises:
A drive gear that is rotated by the drive means, a cam plate that is slip-rotatably attached to the drive gear, a plurality of planetary gears that are provided on the cam plate and that are rotated by the drive gear, and rotation that restricts rotation of the cam plate. With the structure including the restricting member, the drive transmission means can be made compact, and the overall size of the printing apparatus can be reduced.

According to a fifth aspect of the present invention, there is provided a print head which is removable from the apparatus main body and prints on a print medium, a platen which moves relatively to the print head to press the print medium, and a print head. The cutting means for cutting the printing medium printed with, and the operation of the cutting means, the platen and the print head hold the printing medium from both sides when cutting, and the non-cutting of the platen and the printing head. Since the control means is provided for separating one of the print medium from the print medium, the platen and the print head can reliably hold the print medium from both sides by the control means when cutting by the cutting means, and when not cutting. One of the platen and the print head can be separated by the restricting means, so that the medium to be printed can be smoothly attached and detached when not cut, and the cutting can be performed. Cutting of the printing medium can be reliably and satisfactorily in.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to FIGS.
An embodiment of the printing apparatus according to the present invention will be described. FIG. 1 is an external perspective view of the printing apparatus. This printing apparatus is a handy type capable of color printing and includes an apparatus body 1. On the upper surface of the apparatus main body 1, there are a key input section 2 for inputting information, a display section 3 such as a liquid crystal display device for displaying the input information, and a cassette storage section 5 to which a tape cassette 4 is detachably mounted. It is provided.
Further, an opening / closing lid (not shown) that covers the cassette housing portion 5 in an openable / closable manner is rotatably attached to the apparatus body 1. The tape cassette 4 includes a cassette case 6 shown in FIGS. In the cassette case 6, a tape supply reel 8 around which a printing tape (printing medium) 7 is wound, a ribbon supply reel 10 around which an ink ribbon 9 is wound, and a ribbon take-up reel 11 around which the ink ribbon 9 is wound up. Is provided. Then, the print-receiving tape 7 delivered from the tape supply reel 8 is supplied to the cutout portion 12 of the cassette case 6 and sent out from the right end portion of the cassette case 6. The ink ribbon 9 fed from the ribbon supply reel 10 is supplied to the notch 12 of the cassette case 6 in a state of overlapping with the print-receiving tape 7 and wound on the ribbon take-up reel 11. The ink ribbon 9 is a color ink tape and has a structure in which color ink portions such as a blue ink portion, a red ink portion, a yellow ink portion, and a transparent laminating portion are successively arranged for each predetermined length.

A chassis 15 shown in FIGS. 3 to 7 is provided in the apparatus body 1 below the cassette housing section 5. The printed tape 7 is placed on the chassis 15.
A print head 16 for transferring the ink of the ink ribbon 9 onto the
A platen device (platen) 17 that presses the print head 7 and the ink ribbon 9 in a superposed state to the print head 16 so that the print head 16 and the ink ribbon 9 are in contact with each other, a tape rewind shaft (rewinding means) 18 that rewinds the print tape 7, A ribbon take-up shaft 19 for taking up the ribbon 9, a cutter device (cutting means) 20 for cutting the print-receiving tape 7 printed by the print head 16, one motor (driving means) 21, and driving of this one motor 21 A drive transmission mechanism (drive transmission means) 22 for transmitting the power to the platen device 17, the tape rewinding shaft 18, the ribbon winding shaft 19, and the cutter device 20 is provided. In the tape cassette 4, the tape rewind shaft 18 is inserted into the tape supply reel 8, the ribbon take-up shaft 19 is inserted into the ribbon take-up reel 11, and the tapes to be printed are overlapped at the notches 12 of the cassette case 6. 7 and the ink ribbon 9 are accommodated in the cassette accommodating portion 5 while being arranged between the print head 16 and the platen device 17.

The print head 16 is a thermal head, in which a large number of heat generating elements are vertically arranged and formed on the chassis 15. The platen device 17 includes a support shaft 25 on the chassis 15 near the print head 16.
And a platen attachment member 26 is rotatably attached to the upper and lower portions of the support shaft 25. A platen roller 27 is rotatably attached to the platen attachment member 26 by a rotation shaft 28 and attached to the support shaft 25. The platen roller 27 is pressed against the print head 16 so that the platen roller 27 can be contacted and separated by the spring member 29. The platen roller 27 is rotated by the motor 21 in a state in which the print-receiving tape 7 and the ink ribbon 9 are pressed against the print head 16, and the structure is such that the print-receiving tape 7 and the ink ribbon 9 are sequentially fed according to the rotation. It has become.

The spring member 29 is composed of a coil spring wound around the support shaft 25, and an intermediate portion 29a thereof extends toward the outer peripheral surface side of the platen roller 27 on the opposite side of the print head 16 and is positioned vertically. Both ends 29b
Respectively extend toward the outer peripheral surface of the rotary shaft 28 of the platen roller 27 on the opposite side of the print head 16 and make elastic contact with each other, and when the intermediate portion 29a of the coil spring is pressed to the platen roller 27 side, both end portions 29b are The rotary shaft 28 is biased toward the print head 16 and the platen mounting member 26 is rotated around the support shaft 25 to bring the platen roller 27 close to or in pressure contact with the print head 16. In addition, in the vicinity of the platen device 17, as shown in FIG.
A pressing member 30 that presses the intermediate portion 29a of the spring member 29 is provided. The pressing member 30 rotates in conjunction with the opening / closing operation of the opening / closing lid of the cassette housing section 5.
A pressing protrusion 30a is provided at an intermediate portion of the spring member 29 when the opening / closing lid is closed.
9a is pressed.

The tape rewinding shaft 18 is for rewinding the tape 7 to be printed, and as will be described later, the chassis 15 is rewound.
It is rotatably attached to the fixed shaft 31 provided above,
The tape to be printed is removably inserted into the tape supply reel 8 of the tape cassette 4 mounted in the cassette storage portion 5 and rotated when the rotation of the motor 21 is transmitted to rotate the tape supply reel 8. It has a structure to rewind 7. The ribbon take-up shaft 19 is for taking up the ink ribbon 9. The ribbon take-up shaft 19 is slip-rotatably attached to the rotary shaft 33 that is rotatably attached to the chassis 15, and is attached to the cassette storage unit 5. Four
Of the motor 2
When the rotation of 1 is transmitted, the ribbon take-up reel 11 is rotated so that the ink ribbon 9 fed from the ribbon supply reel 10 is taken up. It should be noted that the ribbon take-up shaft 19 rotates in a slip manner because the take-up speed becomes faster than the feed speed of the platen roller 27 as the take-up diameter of the ink ribbon 9 increases.

The cutter device 20 is for cutting the printed tape 7 to be printed, and comprises a fixed blade 35 and a movable blade 36. The fixed blade 35 is used for the print head 16
The blade edge portion 35a is erected vertically on the chassis 15 in the vicinity of the right side of the. The movable blade 36 is the chassis 1
5, a rotary plate 38 rotatably attached to the lower surface of the rotary plate 38 by a screw 37, and a movable blade portion 39 provided perpendicularly to the rotary plate 38 at a position facing the fixed blade 35.
The movable blade portion 39 is bent in an “L” shape along the vertical direction, and the bent blade tip portion 39 a is fixed to the fixed blade 3.
5, the blade edge portion 39a of the movable blade portion 39 corresponds to the blade edge portion 35 of the fixed blade 35 in accordance with the rotating operation of the rotating plate 38.
It has a structure that slides on a. In this case, the rotating plate 38
A platen regulation projection (contact / separation operation means, regulation means) 40 that abuts on the lower right end of the platen attachment member 26 and regulates the movement of the platen attachment member 26 is formed at a predetermined position by cutting and raising. The platen regulating projection 40 regulates the platen mounting member 26 so that the platen roller 27 is farthest from the print head 16 in the initial state where the movable blade 36 is farthest from the fixed blade 35, and the rotating plate 38 is used at the time of cutting and printing. Moves in accordance with the rotation of the platen mounting member 26 to control the platen mounting member 26 so that the platen roller 27 can approach or press the print head 16.

One motor 21 is mounted on the left side platform 15a of the chassis 15 which is bent in a "U" shape, and its output shaft projects into the platform 15a, and the control means described later is provided. The rotation is controlled by. The drive transmission mechanism 22 decelerates the rotation of the motor 21 and the rotation decelerated by the deceleration mechanism 45 to the platen roller 27 and the tape rewinding shaft 1.
8 and the cutter device 20, a transmission switching mechanism (transmission switching means) 46 for switching to a state in which transmission is possible, a platen transmission gear train 47 for transmitting rotation by the transmission switching mechanism 46 to the platen roller 27, a tape rewinding shaft. 18, a tape rewinding transmission gear 48, a cutter transmission gear train 49 transmitting to the cutter device 20, and a ribbon winding transmission gear train 50 transmitting to the ribbon winding shaft 19. In this case, the ribbon winding transmission gear train 50 has a structure in which the rotation by the transmission switching mechanism 46 is transmitted via the platen transmission gear train 47. The reduction mechanism 45 includes a shaft gear 51 provided on the output shaft of the motor 21, a large gear 52 that meshes with the shaft gear 51 to rotate, and a small gear 53 integrally provided on the large gear 52. Large gear 52 and small gear 5
3 has a structure in which it is rotatably attached to a shaft 54 provided on the chassis 15.

The transmission switching mechanism 46 is shown in FIGS.
As shown in (c), a large-diameter first drive gear 55 that meshes with the small gear 53 of the reduction mechanism 45 to rotate, and a small-diameter second drive gear 56 that is integrally provided with the first drive gear 55.
A cam plate 58 attached to the second drive gear 56 via a friction imparting member 57 such as a rubber ring so as to be capable of slip rotation, and the shafts 5 provided on the cam plate 58.
8a to 58c are rotatably mounted, and three planetary gears 60 to 62 that rotate while always meshing with the second drive gear 56 having a small diameter, and rotatably mounted on the chassis 15 to rotate the cam plate 58. A rotation restricting plate (rotation restricting member) 63 that restricts the drive gears 55 and 56 and a cam plate 58 are rotatably attached to a shaft 64 provided on the chassis 15.

At a predetermined position on the lower surface of the cam plate 58, there is formed a cam groove 65 into which a regulation pin 63a provided at the tip of the rotation regulation plate 63 is inserted and moved, and as shown in FIG. A reference protrusion 66 that moves in the circular arc groove 15b of the reference numeral 15 is formed. The cam groove 65 serves to regulate the position of the cam plate 58 at the initial position, the printing position, the cutting position, and the rewinding position according to the movement position of the regulation pin 63a.
As shown in FIG. 9, an initial point A, a printing point B, a cutting point C, and a rewinding point D are provided. Further, among the three planetary gears 60 to 62, the first planetary gear 60 is provided near a position corresponding to the rewinding point D of the cam groove 65, and the second planetary gear 61 corresponds to the printing point B of the cam groove 65. The third planetary gear 62 is provided in the vicinity of a cutting position C of the cam groove 65.
It is provided near the position corresponding to. Further, the first planetary gear 60 is arranged at the lowest position of the cam plate 58,
The planetary gear 61 and the third planetary gear 62 are arranged at a position higher than that and at substantially the same height.

The planetary gears 60 to 62 mesh with any of the platen transmission gear train 47, the tape rewinding transmission gear 48, and the cutter transmission gear train 49 by the rotation of the motor 21 controlled by the control means described later. That is, as shown in FIG. 13, when the restriction pin 63a of the rotation restriction plate 63 is located at the initial point A of the cam groove 65 and the cam plate 58 is at the initial position, the first to third planetary gears 60 to 62 are provided. Does not mesh with any of the platen transmission gear train 47, the tape rewinding transmission gear 48, and the cutter transmitting gear train 49. Further, as shown in FIG. 14, the regulation pin 63 of the rotation regulation plate 63 is
When a is located at the printing point B of the cam groove 65 and the cam plate 58 is at the printing position, only the third planetary gear 62 meshes with the first platen transmission gear 70 of the platen transmission gear train 47. Further, as shown in FIG. 15, the regulation pin 63 a of the rotation regulation plate 63 is located at the rewinding point D of the cam groove 65 and is located at the cam plate 5.
When 8 is in the rewinding position, only the second planetary gear 61 meshes with the tape rewinding transmission gear 48. Further, as shown in FIG. 17, the regulation pin 63 a of the rotation regulation plate 63 is attached to the cam groove 65.
When the cam plate 58 is located at the cutting point C and is in the cutting position, only the second planetary gear 61 meshes with the first cutter transmission gear 80 of the cutter transmission gear train 49.

The platen transmission gear train 47, as shown in FIG. 7, has a third planetary gear 62 of the transmission switching mechanism 46.
The first platen transmission gear 70 that rotates by meshing with each other, the second platen transmission gear 72 that transmits the rotation of the first platen transmission gear 70 via the intermediate gear 71, and the second platen transmission gear 72.
A platen gear 73 that meshes with the platen transmission gear 72 to rotate, and a first platen transmission gear 70 and an intermediate gear 71 are provided on the chassis 15 for the respective shafts 70a, 70a.
The second platen transmission gear 7 is rotatably attached to b.
2 is rotatably attached to the support shaft 25 of the platen device 17, the platen gear 73 is fixed to the rotation shaft 28 of the platen roller 27, and the platen roller 27 rotates as the platen gear 73 rotates. . In this case, since the platen gear 73 meshes with the second platen transmission gear 72 rotatably attached to the support shaft 25 of the platen device 17, the platen roller 27 rotates about the support shaft 25 of the platen device 17. Even if the platen gear 73 moves due to movement, the platen gear 73 always meshes with the second platen transmission gear 72.

As shown in FIG. 7, the ribbon take-up transmission gear train 50 is a ribbon take-up shaft transmission gear 74 that rotates by meshing with the second platen transmission gear 72 of the platen transmission gear train 47.
And a ribbon winding shaft gear 75 that rotates by meshing with the ribbon winding shaft transmission gear 74. The ribbon winding shaft transmission gear 74 is rotatably attached to a shaft 76 provided on the chassis 15. A take-up shaft gear 75 is provided on the rotary shaft 33 of the ribbon take-up shaft 19, and the ribbon take-up shaft 19 is rotated in synchronization with the rotation of the platen roller 27. As shown in FIGS. 10A and 10B, the tape rewinding transmission gear 48 is integrally provided on the tape rewinding shaft 18 rotatably attached to the fixed shaft 31 of the chassis 15 to switch the transmission. The structure is such that the second planetary gear 61 of the mechanism 46 meshes and rotates, thereby rotating the tape rewinding shaft 18. The tape rewinding shaft 18 and the tape rewinding transmission gear 48 are the tape rewinding transmission gear 48.
To the shaft spring 48a provided on the upper surface of the torsion spring 32.
The intermediate portion of the torsion spring 32 is attached, and one end of the torsion spring 32 is provided on the upper surface of the tape rewinding transmission gear 48.
The other end of the torsion spring 32 is locked to b and the cutout portion 1 at the boundary between the tape rewinding shaft 18 and the tape rewinding transmission gear 48 is provided.
It is rotatably attached to the fixed shaft 31 by being inserted from 8a and locked in the locking groove 31a of the fixed shaft 31.

As shown in FIG. 7, the cutter transmission gear train 49 meshes with the first cutter transmission gear 80 and the first cutter transmission gear 80 in which the second planetary gear 61 of the transmission switching mechanism 46 meshes and rotates. Rotating second cutter transmission gear 8
1 and a cam gear 82 that rotates by meshing with the second cutter transmission gear 81. The first cutter transmission gear 80 and the second cutter transmission gear 81 are respectively attached to the shafts 83 and 84 provided on the chassis 15, respectively. The cam gear 82 is rotatably attached and is rotatably attached to the fixed shaft 31 of the tape rewinding shaft 18. Cam gear 8
2 is, as shown in FIGS. 10 (a) and 10 (b),
A first gear portion 85 formed on the lower outer peripheral surface of the second cutter transmission gear 81 and meshing with the second cutter transmission gear 81, and a ring shape formed on the upper outer peripheral surface of the first gear portion 85 with a larger diameter than the first gear portion 85 and meshing with the third planetary gear 62. Of the second gear portion 86 and a cam groove 87 formed on the lower surface of the cam gear 82 as shown in FIG. 11, and a moving pin provided on the rotating plate 38 of the cutter device 20 in the cam groove 87. 38a is movably inserted, and the moving pin 38a is rotated by the cam gear 82 so that the cam groove 8
The movable blade 36 is configured to perform a cutting operation by moving in the inside 7.

In this case, the first gear portion 85 has a structure shown in FIG.
As shown in (a) and FIG. 10 (b), a first cutout portion 85a for releasing the meshing with the second cutter transmission gear 81 or the first planetary gear 60 (non-meshing state) is provided. Further, the ring-shaped second gear portion 86 is arranged on the outer periphery of the tape rewinding transmission gear 48 of the tape rewinding shaft 18, and the tape rewinding transmission gear 48 is exposed to the second gear portion 86. A second cutout portion 86a that allows the second planetary gear 61 to mesh with each other is provided. Further, the cam groove 87 has an elliptical shape eccentric with respect to the center of the cam gear 82, and an arc-shaped groove along the center of the cam gear 82 is formed in the middle thereof, and this arc-shaped groove portion forms the initial position portion 87a. None The movable blade 36 is most distant from the fixed blade 35, and the elliptical portion that gradually moves away from the center of the cam gear 82 and gradually comes close to the cutting operation portion 87b to move the movable blade 36 to perform the cutting operation. The elliptical portion on the opposite side forms the approach portion 87c, the movable blade 36 is brought a little closer to the fixed blade 35, and the portion where the elliptical portion and the arcuate groove intersect forms the inlet portion 87d to the initial position. .

Next, the control means for controlling the rotation of the motor 21 will be described with reference to FIGS. FIG.
2 is a diagram showing an operation flow of the cam plate 58 of the transmission switching mechanism 46 in accordance with the rotation of the motor 21. First, step S
In the initial state of No. 1, as shown in FIG.
The third regulation pin 63a is located at the initial position A of the cam groove 65, the cam plate 58 is at the initial position, and the first to third planetary gears 60 to 62 are the platen transmission gear train 47 and the tape rewinding transmission gear 48. , And the cutter transmission gear train 49 do not mesh. After this, if you want to perform printing operation,
In step S2, it is determined whether or not to print. If printing is to be performed, the process proceeds to step S3. This step S3
Then, by rotating the motor 21 in the forward direction, as shown in FIG.
The regulation pin 63a of the rotation regulation plate 63 is moved from the initial point A of the cam groove 65 to the printing point B via the path of arrow X.
In this state, the third planetary gear 62 of the transmission switching mechanism 46 meshes with the first platen transmission gear 70 of the platen transmission gear train 47, and the rotation of the motor 21 is transmitted to the platen roller 27 and the ribbon take-up shaft 19 for printing. The tape 7 and the ink ribbon 9 are sent out, and a desired color ink is transferred to the print-receiving tape 7. When a desired color is printed on the print-receiving tape 7, the process proceeds to step S4 to determine whether or not the desired printing is completed. If not, the printing is performed until the printing is completed, and then the process is completed. If so, the process proceeds to step S5.

In step S5, it is determined whether or not the print-receiving tape 7 is rewound. If it is rewound, the process proceeds to step S6. In step S6, as shown in FIG. 15, the motor 21 is rotated in the reverse direction to move the regulation pin 63a of the rotation regulation plate 63 from the printing point B of the cam groove 65 through the initial point A to the rewinding point D via the path of the arrow Y. To move. In this state, the second
The planetary gear 61 meshes with the tape rewinding transmission gear 48, the rotation of the motor 21 is transmitted to the tape rewinding shaft 18, and the printing target tape 7 is rewound. Then, when the print-receiving tape 7 is rewound, the process proceeds to step S7, it is determined whether or not the print-receiving tape 7 is rewound by the printed length, and if it is not rewound by a desired length, When the film is rewound to the desired length and rewound to the desired length, the process proceeds to step S2 again to repeat the printing operation. At this time, the motor 21 is normally rotated in step S3, and
As shown in FIG. 5, the regulation pin 63a of the rotation regulation plate 63 is moved from the rewinding point D of the cam groove 65 to the printing point B via the path of the arrow X. In this way, printing with a color different from the previous one is performed.

When the color printing of a plurality of colors and the laminate printing are completed, the tape 7 to be printed is printed in step S5.
Is determined not to be rewound, and the process proceeds to step S8. Even when it is determined in step S2 that printing is not performed, the process proceeds to step S8. In step S8, it is determined whether or not the printed tape 7 to be printed is cut, and if it is not cut, this flow is ended, and if it is cut, step S9.
Proceed to. In step S9, first, as shown in FIG. 16, the motor 21 is rotated in the reverse direction to rotate the regulation pin 63 of the rotation regulation plate 63.
When a is moved from the printing point B to the initial point A via the path of the arrow Y and the restriction pin 63a reaches the initial point A, the motor 21 is rotated in the normal direction to move the restriction pin 63 as shown in FIG.
a is moved from the initial point A to the cutting point C. In this state, the second planetary gear 61 of the transmission switching mechanism 46 meshes with the first cutter transmission gear 80 of the cutter transmission gear train 49, the rotation of the motor 21 is transmitted to the cam gear 82, and the rotation of the cam gear 82 moves the rotation. The blade 36 performs a cutting operation.
When the movable blade 36 performs the cutting operation, the process proceeds to step S10 to determine whether the printing of the printed tape 7 has been completed. If the cutting is not completed, the operation is continued and the operation is completed. If so, the process proceeds to step S11 to rotate the motor 21 in the reverse direction to move the restriction pin 63a from the cutting point C to the initial point A, and this flow ends.

Next, the case of performing color printing with this printing apparatus will be described. First, the tape cassette 4 is mounted in the cassette housing portion 5 of the apparatus body 1. At this time,
The tape rewind shaft 18 is inserted into the tape supply reel 8 of the tape cassette 4, the ribbon take-up shaft 19 is inserted into the ribbon take-up reel 11, and the print-receiving tape 7 and ink which are overlapped at the notch 12 of the cassette case 6 The ribbon 9 is arranged between the print head 16 and the platen roller 27. When the opening / closing lid is closed in this state, the pressing member 30 provided near the platen device 17 rotates in conjunction with the opening / closing lid, and the pressing protrusion 30a of the pressing member 30 is wound around the support shaft 25. The intermediate portion 29a of the spring member 29 is pressed to urge the platen roller 27 toward the print head 16. However, at this time, since the movable blade 36 of the cutter device 20 is at the initial position farthest from the fixed blade 35, the movable blade 3
The platen attaching member 26 by the platen regulating protrusion 40 of 6
Movement of the platen roller 27 is restricted by the print head 1
It approaches 6, but does not press.

When color printing is started in this state, first, the motor 21 is normally rotated by the control means, and the regulating pin 63a of the rotation regulating plate 63 is moved to the cam groove 6 as shown in FIG.
5 is moved from the initial point A to the printing point B, and the third planetary gear 62 of the transmission switching mechanism 46 is meshed with the first platen transmission gear 70 of the platen transmission gear train 47. At this time, as shown in FIG. 19, the first planetary gear 60 of the transmission switching mechanism 46 becomes the first planetary gear 60 of the cam gear 82 of the cutter transmission gear train 49.
The rotation of the motor 21 meshes with the gear portion 85 to rotate the cam gear 8
2, the moving pin 38a of the rotary plate 38 of the movable blade 36 moves from the initial position portion 87a of the cam groove 87 to the approach portion 87c in accordance with the rotation of the cam gear 82, whereby the movable blade 36 is fixed. It comes closer to the blade 35. Along with this, the platen regulating protrusion 40 of the movable blade 36 also moves, and the platen roller 27 is brought into a state in which it can be pressed against the print head 16. Therefore, the platen roller 27 presses the print-receiving tape 7 and the ink ribbon 9 against the print head 16. As a result, printing is possible. In this state, the third planetary gear 62 is the first of the platen transmission gear train 47.
Since it meshes with the platen transmission gear 70, the motor 2
When 1 is rotated in the normal direction, the rotation is transmitted to the platen roller 27 and the ribbon winding shaft 19, and the print-receiving tape 7 and the ink ribbon 9 are sent out. When the heating elements of the print head 16 are driven in synchronization with this according to the information, the color ink of the ink ribbon 9, for example, the blue ink, is sequentially transferred to the printing tape 7.

When the transfer of one color (blue ink) is completed, the print-receiving tape 7 is rewound to transfer the next different color ink. In this case, first, the motor 21 is reversely rotated by the control means, and the regulation pin 63a of the rotation regulation plate 63 passes from the printing point B of the cam groove 65 to the initial point A as shown in FIG. Move to rewind point D. At this time, as shown in FIG. 20, the second planetary gear 61 of the transmission switching mechanism 46 meshes with the second gear portion 86 of the cam gear 82 of the cutter transmission gear train 49, and the cam gear 82 moves as the motor 21 rotates. Rotate,
Along with this rotation, the moving pin 38a of the rotating plate 38 moves from the approach portion 87c of the cam groove 87 to the initial position portion 87a. Therefore, the movable blade 36 is separated from the fixed blade 35,
The platen regulating protrusion 40 of the movable blade 36 separates the platen roller 27 from the print head 16. Then, the second planetary gear 61 reaches the second cutout portion 86a of the second gear portion 86 of the cam gear 82, and meshes with the tape rewinding transmission gear 48 exposed from the second cutout portion 86a. Therefore, when the motor 21 rotates in the reverse direction, its rotation causes the tape rewinding transmission gear 4 to rotate.
It is transmitted to the tape rewinding shaft 18 via 8 and the printed tape 7 is rewound.

When the tape 7 to be printed is rewound, the motor 21 is normally rotated by the control means in the same manner as described above, and the regulation pin 63a of the rotation regulation plate 63 is moved from the initial point A of the cam groove 65 as shown in FIG. Move to printing point B and transfer switching mechanism 4
6 of the 6th planetary gear 62 to the 1st of the platen transmission gear train 47
It meshes with the platen transmission gear 70. Also at this time, the first planetary gear 60 of the transmission switching mechanism 46 meshes with the first gear portion 85 of the cam gear 82 of the cutter transmission gear train 49, the rotation of the motor 21 is transmitted to the cam gear 82, and the rotation plate is rotated. 38
The moving pin 38a is moved from the initial position portion 87a of the cam groove 87 to the approach portion 87c. Therefore, as shown in FIG. 19, the movable blade 36 approaches the fixed blade 35 and the platen regulating projection 40 also moves, so that the platen roller 27 is moved. Becomes ready to be pressed against the print head 16, and the platen roller 27
Presses the print-receiving tape 7 and the ink ribbon 9 against the print head 16 to enable printing. Therefore, when the motor 21 rotates in the normal direction, the print-receiving tape 7 and the ink ribbon 9 are sent out. When the print head 16 is driven in synchronization with this, the color ink of the ink ribbon 9, for example, the red ink, is sequentially transferred to the print-receiving tape 7. Such a printing operation is repeated for each color, and when the transparent laminate is printed at the end, the printing ends.

Then, when cutting the print-receiving tape 7 on which printing has been completed, first, the motor 21 is reversely rotated by the control means, and the regulation pin 6 of the rotation regulation plate 63 as shown in FIG.
3A is moved from the printing point B of the cam groove 65 to the initial point A, and when the regulation pin 63a reaches the initial point A, FIG.
, The motor 21 is rotated in the forward direction to move the regulation pin 63a from the initial point A to the cutting point C, and the transmission switching mechanism 4
The second planetary gear 61 of No. 6 is meshed with the first cutter transmission gear 80 of the cutter transmission gear train 49. In this case, when the restriction pin 63a moves from the printing point B to the initial point A, the first planetary gear 60 meshes with the first gear portion 85 of the cam gear 82 of the cutter transmission gear train 49, as shown in FIG. The rotation of the motor 21 causes the cam gear 82 to rotate,
The moving pin 38a of the rotating plate 38 of the movable blade 36 is attached to the cam groove 87.
Is moved from the initial position portion 87a to the approach portion 87c to loosen the regulation by the platen regulation projection 40 so that the platen roller 27 can be brought into pressure contact with the print head 16, whereby the print-receiving tape 7 and the ink ribbon 9 are brought into contact with the platen roller 2.
7 and the print head 16 are fixed.

When the restriction pin 63a moves from the initial point A to the cutting point C, the cam plate 58 of the transmission switching mechanism 46 rotates to move the second planetary gear 6 as shown in FIG.
1 meshes with the first cutter transmission gear 80 of the cutter transmission gear train 49. When the motor 21 rotates normally in this state, the rotation is transmitted to the first cutter transmission gear 80 of the cutter transmission gear train 49 via the second planetary gear 61 of the transmission switching mechanism 46, and the first cutter transmission gear 80. Is transmitted to the cam gear 82 via the second cutter transmission gear 81, and the cam gear 82 rotates. Then, the cam groove 87 of the cam gear 82 moves, and accordingly, the moving pin 38a of the rotating plate 38 of the movable blade 36 moves from the approach portion 87c to the cutting operation portion 87b, and is rotated by the cutting operation portion 87b. The plate 38 rotates to move the movable blade 36 toward the fixed blade 35, and the blade edge portion 39a of the movable blade 36 slides on the blade edge portion 35a of the fixed blade 35 to cut the printed tape 7 to be printed. To do.

When the tape 7 to be printed is cut, the second
The cutter transmission gear 81 is located at the first cutout portion 85a of the first gear portion 85 of the cam gear 82, and the meshing between the second cutter transmission gear 81 and the first gear portion 85 is released. Then, the motor 21 rotates in the reverse direction to move the restriction pin 63a from the cutting point C of the cam plate 58 to the initial point A. After this, the motor 2
1 is rotated in the normal direction to move the restriction pin 63a from the initial point A of the cam plate 58 to the printing point B, and the third planetary gear 62 is meshed with the first platen transmission gear 70 of the platen transmission gear train 47. Enable continuous printing. At this time, the first planetary gear 60 is moved to the cutter transmission gear train 49.
And meshes with the first gear portion 85 of the cam gear 82 of
As a result, the cam gear 82 rotates to move the moving pin 38a of the rotating plate 38 from the cutting operation portion 87b of the cam groove 86 to the approach portion 87c. Then, when printing is not performed, the motor 21 is rotated in the reverse direction so that the restriction pin 63a is moved to the cam plate 5.
The printing point B of 8 is moved to the initial point A. At this time, the second planetary gear 61 moves the second gear portion 8 of the cam gear 82.
6 and rotates to move the moving pin 38a of the rotating plate 38 from the approach portion 87c of the cam groove 87 to the initial position portion 87a.
Go to As a result, all the operation units return to the initial state.

As described above, in this printing apparatus, one motor 21 is controlled by the control means, and the controlled rotation of the motor 21 is driven by the drive transmission mechanism 22 to the platen roller 27, the tape rewinding shaft 18, the ribbon winding shaft. 19, the platen roller 27, the tape rewinding shaft 18, the ribbon winding shaft 19, and the cutter device 20 can be transmitted to the cutter device 20. In this case, the drive transmission mechanism 22 controls the rotation of the motor 21 by the platen roller 27, the tape rewinding shaft 18,
Since the transmission switching mechanism 46 for switching to a state in which transmission to either the ribbon take-up shaft 19 or the cutter device 20 is provided, the platen roller 27, the tape rewinding shaft 18, the one motor 21 according to each operation timing, Ribbon winding shaft 1
9. Either the cutter device 20 or the cutter device 20 can be selectively operated. The transmission switching mechanism 46 includes a large-diameter first drive gear 55 that rotates according to the rotation of the motor 21, a small-diameter second drive gear 56 that is integrally provided with the first drive gear 55, and a second drive gear 56. A cam plate 58 attached to the drive gear 56 so as to be capable of slip rotation, three planetary gears 60 to 62 provided on the cam plate 58 and rotated by meshing with the second drive gear 56, and rotation of the cam plate 58 are restricted. The drive transmission mechanism 22 can be made compact, and the size of the entire printing apparatus can be reduced.

The rotation of the motor 21 is controlled by the cutter device 20.
Since the cam gear 82 of the cutter transmission gear train 49 and the tape rewinding shaft 18 which are transmitted to each other are arranged on the same shaft, the drive transmission mechanism 22 can be made compact also by this, and the cutter transmission gear train 49 The cam gear 82 of the first
The tape rewinding transmission gear 48 integrally formed on the tape rewinding shaft 18 is arranged in the ring-shaped second gear portion 86, which is composed of the gear portion 85 and the ring-shaped second gear portion 86. The tape rewinding transmission gear 48 is exposed from the second notch portion 86a of the second gear portion 86 to expose the second and third planetary gears 61, 62.
Since the meshing of the drive transmission mechanism 22 is possible, the drive transmission mechanism 22 can be mounted at a high density, and the size can be further reduced. Further, the ribbon take-up transmission gear train 50 that transmits the rotation of the motor 21 to the ribbon take-up shaft 19 includes a ribbon take-up shaft transmission gear 74 and a ribbon take-up shaft gear 75. Is the second of the platen transmission gear train 47
The platen transmission gear 72 meshes and rotates, and this rotation is transmitted to the ribbon winding shaft 19 via the ribbon winding shaft gear 75. Therefore, the transmission mechanism from the motor 21 is simple and the number of gears is small. I'm sorry.

Further, in this printing apparatus, the cutter device 20
Since the platen regulating protrusion 40 is provided on the movable blade 36, the platen regulating protrusion 40 moves according to the cutting operation of the movable blade 36 when the cutter device 20 cuts the print head 16
The operation restriction of the platen roller 27 with respect to the platen roller 27 can be released so that the platen roller 27 can be brought into pressure contact with the print head 16, and the movable blade 36 is separated from the fixed blade 35 during non-cutting. Protrusion 4
0 can be moved to separate the platen roller 27 from the print head 16. Therefore, when the cutter device 20 is cut, the platen roller 27 can be pressed against the print head 16 reliably and with a high pressure, whereby the print-receiving tape 7 can be cut surely and satisfactorily, and when not cut, the platen roller 27 can be cut. Since the roller 27 is separated from the print head 16, the printing target tape 7 and the ink ribbon 9 may adhere to each other as in the conventional case even if left for a long time.
These do not stick to the platen roller 27 or the print head 16, and the printing tape cassette 4 can be smoothly attached and detached and the print-receiving tape 7 can be rewound.

In the above embodiment, one motor 2
Although the platen roller 27, the tape rewinding shaft 18, the ribbon rewinding shaft 19, and the cutter device 20 are all selectively driven by No. 1, the invention is not limited to this. At least two or more of the winding shaft 19 and the cutter device 20 may be selectively driven by one motor. Further, in the above-described embodiment, the platen roller 27 is moved to be brought into contact with and separated from the print head 16, but the present invention is not limited to this, and the print head 16 is not limited thereto.
May be moved so as to move toward and away from the platen roller 27. Further, in the above-described embodiment, the color ribbon is used as the ink ribbon 9, but the present invention is not limited to this, and an ink ribbon containing only black ink may be used. Furthermore, in the above-described embodiment, the handy type printing apparatus has been described, but the present invention is not limited to this, and can be widely applied to ordinary printing apparatuses.

[0034]

As described above, according to the first aspect of the present invention, one driving means is controlled by the control means, and the controlled driving of the driving means is performed through the print medium through the print head. And at least two of the contacting / separating operation unit that relatively moves the platen and the platen, the conveying unit that conveys the print medium, and the cutting unit that cuts the print medium printed by the print head. Therefore, a plurality of operations such as contact / separation operation means, transfer means, cutting means, etc.
It can be performed by two driving sources. In addition, claim 5
According to the invention described above, the platen and the print head can surely hold the print medium from both sides by the restricting means when the cutting is performed by the cutting means, and the platen and the print head are separated from each other by the restricting means when the cutting is not performed. Therefore, the medium to be printed can be smoothly attached and detached when not cut, and the medium to be printed can be cut surely and satisfactorily at the time of cutting.

[Brief description of drawings]

FIG. 1 is an external perspective view of an embodiment in which the present invention is applied to a handy type printing apparatus.

FIG. 2 is a plan view of the tape cassette shown in FIG.

FIG. 3 is a perspective view of a main part of a mechanical section of the printing apparatus of FIG. 1 when not cut.

FIG. 4 is a perspective view at the time of cutting in FIG.

FIG. 5 is a perspective view in which the movable portions of the fixed blade and the movable blade are removed in the state of FIG.

FIG. 6 is a perspective view in which the movable parts of the fixed blade and the movable blade are removed in the state of FIG.

FIG. 7 is a plan view of FIG. 3;

8A and 8B show the transmission switching mechanism of FIG. 7, in which FIG. 8A is an exploded perspective view of the transmission switching mechanism, and FIG.
(C) is a side view of the transmission switching mechanism.

9 is an enlarged view of the transmission switching mechanism of FIG.

10A and 10B show a tape rewinding shaft, a tape rewinding transmission gear, and a cam gear, FIG. 10A is a perspective view of the assembled state, and FIG. 10B is an exploded perspective view thereof.

FIG. 11 is a view showing a connection relationship between the cam gear and the movable blade of FIG.

12 is a diagram showing an operation flow of a cam plate of the transmission switching mechanism of FIG.

13 is a diagram showing an initial state of the transmission switching mechanism of FIG.

14 is a diagram showing a printing state of the transmission switching mechanism of FIG.

15 is a diagram showing a rewinding state of the transmission switching mechanism of FIG.

16 is a diagram showing a state in which the cam plate of the transmission switching mechanism of FIG. 8 is being switched from the initial state to the disconnected state.

17 is a diagram showing a cut state of the transmission switching mechanism in FIG.

FIG. 18 is a diagram showing an initial state of FIG. 7.

FIG. 19 is a diagram showing a printing state of FIG. 7.

FIG. 20 is a diagram showing a rewinding state of FIG. 7.

21 is a diagram showing a state in which the cam plate of the transmission switching mechanism is being switched from the initial state to the disconnected state in FIG. 7. FIG.

FIG. 22 is a view showing a cut state of FIG. 7.

[Explanation of symbols]

 1 Device Main Body 4 Tape Cassette 7 Printed Tape 16 Printing Head 17 Platen Device 18 Tape Rewinding Shaft 20 Cutter Device 21 Motor 22 Drive Transmission Mechanism 27 Platen Roller 40 Platen Regulation Protrusion 46 Transmission Switching Mechanism 55 Large Diameter First Drive Gear 56 Small diameter second drive gear 57 Friction imparting member 58 Cam plate 60-62 Planetary gear 63 Rotation restriction plate 63a Restriction pin 65 Cam groove

Claims (5)

[Claims] 1. A contacting / separating operation unit that relatively moves a print head and a platen into and out of each other via a print medium, a conveying unit that conveys the print medium, and the print medium printed by the print head. Cutting means for cutting the print medium, one driving means, and control means for controlling the one driving means,
A printing apparatus comprising: a drive transmission unit that drives at least two or more of the contact / separation operation unit, the conveyance unit, and the cutting unit by the one drive unit. 2. The drive transmission means comprises a transmission switching means for switching the drive by the drive means to a state in which the drive can be transmitted to any one of the contact / separation operation means, the conveying means and the cutting means. The printing apparatus according to claim 1, wherein the printing apparatus is a printing apparatus. 3. The transmission switching means includes a drive gear that is rotated by the drive means, a cam plate that is slip-rotatably attached to the drive gear, and a plurality of cam plates that are provided on the cam plate and that are rotated by the drive gear. 3. The printing apparatus according to claim 2, comprising the planetary gear of claim 1 and a rotation restricting member that restricts rotation of the cam plate. 4. The transporting device comprises rewinding means for rewinding the print medium, and feed means for feeding the print medium by rotating the platen in pressure contact with the print head. The printing device according to any one of claims 1 to 3. 5. A print head for printing on a print medium detachably mountable to an apparatus main body, a platen that moves relative to the print head to press the print medium, and the print head prints the print medium. A cutting unit that cuts the print medium and the operation of the cutting unit. When cutting, the platen and the print head hold the print medium from both sides, and when not cutting, the platen and the printing unit. A printing device, comprising: a regulating unit that keeps one of the heads separated from the print medium.