JPS59196283A - Ink ribbon of printing apparatus - Google Patents

Abstract

PURPOSE:To make it possible to easily exchange an ink ribbon, by making it possible to perform the exchange of ink ribbon without performing the connection of the ink ribbon and a core body when a user exhanges the ink ribbon by fixing a second core body to the winding terminal end of the ink ribbon. CONSTITUTION:A cassette 13 sets an ink ribbon 50 and an ink surface 103 is fixed to the end part of the leader tape 102 in a transparent part by a single surface sticky tape 101 to be protected by the leader tape 102 while a core body 76 is sticked to the leading end to said ink ribbon by a single surface sticky tape 101' in order to hold said core body 76 to mount winding core body 104. This cassette 13 holds a pinch roller 93 for sending the ink ribbon 50 to a support 94 and a press roller 95 is held by a press spring 96 to wind up the ribbon 5a which is, in turn, wound up by the core body 76. By this method, the exchange of the ink ribbon of the cassette is easily enabled unless a user performs the connection of the core body and the ink ribbon and, because the second core body is fixed to the ink ribbon, the attachment thereof to the cassette becomes easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a four-component ink ribbon used in printing machines and the like.

[Background of the invention]

The ink ribbons used in conventional printing machines are made by winding the ink ribbon around a core body in a coil shape and then gluing and fixing the end of the winding at the tip with leader tape. The ribbon had to be attached, and in response to the need for improved printing quality and faster printing speed, ink ribbons were made thinner, making handling the ink ribbon a hassle and inconvenience due to the static air. .

[Purpose of the invention]

It is an object of the present invention to provide an easy-to-use ink ribbon configuration that eliminates the problems in the conventional temporary technique described in 1iiJ and makes it easy for the user to replace the ink ribbon.

[Summary of the invention]

A second core body is fixed to the winding end of the ink ribbon, and the user can replace the ink ribbon without connecting the ink ribbon and the core body when exchanging the ink ribbon [Embodiment of the invention] ] Examples of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows the external appearance of a thermal transfer printer device according to the present invention. 1 is an upper case, 2 is a lower case, and the upper case 21 holds a lid body 3 and a support body 23 for a ticket in a detachable manner.

A carriage 12 having a cassette part 13 containing a thermal transfer ink ribbon in shaft bodies 8 and 9 is supported in the mechanism part 7 so as to be horizontally movable, and a thermal head 14 having a plurality of heating resistors is supported in the carriage 12. It is held rotatably.

The carriage 12 is held at one end of a timing belt 15 and is movable to the left and right by a pulley 17 disposed on a pulse motor 16 and a pulley 18 supported at the other end by a pulley support 19. It is composed of

On the other hand, the second pulse motor 20 rotates the platen 4 having the platen knob 11 at one end via the gear 10, and contacts the platen 4 via the thermal head 14, printing paper 53, and ink ribbon 50. The thermal head 14 has a structure in which the resistor of the thermal head 14 is in contact with the ink, which melts a part of the ink ribbon 50 and transfers the ink to the printing paper 53 by heat generated from the resistor.
．． 22 (shown in FIG. 4) forms a paper feeding section. The release lever 21 is connected to the platen 4 and the pressing roller 22.
This is an operating lever that releases the pressure from the button. The flat cable 24 is a conductive part to four gas components mounted on the carriage 12 such as the thermal head 14 held on the carriage 12, 25 is a transformer, and 26 is a power switch. Each unit will be explained below. Figure 2 shows the structure of the mechanism. 30 and 31 are the side plates and have the same shape. Bottom plate 32
has a protrusion tJ33, 34.35 and a gill plate 30°3
1 to form a frame /i4. Shaft 8゜9
is attached to the side plate 30.31 by screw 36.37 at its end.
It's covered in chives.

On the other hand, the pulse motor 16 for feeding the carriage 12 is connected to a vibration-proof rubber 41, and the pulse motor 20 for feeding the paper is connected to a drive gear 42.
, an intermediate gear 43, and a shaft body 44 are held on a motor base 45 to form a drive unit 22), and are fixedly attached to the side plate 31. Reference numeral 46 denotes a transformer support, which is similarly attached to and held by the side plate 31. The support 19 is held on the side plate 30 by screws 38, 38'.

FIG. 3 shows the configuration of the paper feed deceleration drive section shown in FIG. 2.

4 and 5 show cross sections around the carriage 12 according to the present invention. The carrier 2 has a thermal transfer ink ribbon 5 whose base material is a polyester film coated with a heat-fusible ink.
A thermal head 14 is rotatably held around a shaft 51 with a support 52 interposed therebetween, and an ink ribbon 50 is pressed against a printing paper 53 surface by a platen 4, and a thermal head 14 is mounted thereon. The ink in the portion corresponding to the heating element (148, 14a' in FIG. 15) disposed in the head 14 is melted and transferred to the printing paper 53 in contact. When the timing belt 15 is wound in the B direction, the carriage 12 moves in the B direction, and the amount of relative displacement between the timing belt 15 and the carriage 12 facing the fixed end (when the carriage 12 moves V, 2 V in the opposite direction) is as follows. Rotate the pulley 55, rotate the gear 54.59, and move the coaxial lever 57 to the wave washer 5.
8, the gear 60 and the gear 59 are engaged with each other, and the pinch roller shaft 60' is rotated. However, at this time, the solenoid 68 is energized and is in the state of A! The pressure lever 71 and the lever 71 are pressed by the head lever 70.
2. The thermal head 14 is in a state where it presses the platen 4 at an intermediate pressure with the pressure cam 73 interposed therebetween. solenoid 68
When A' (point +?J) is not excited, the rotation of the lever 57 is restricted by a part of the head lever 70, and the rotational force is not transmitted to the gear 60.74 is a cassette. This is a transmission type sensor that detects the presence or absence of the printer and ribbon 50 in the print paper 53.
The paper is fed by the frictional force between the platen 2' and the platen 4.
As shown in FIG.
is maintained. Reference numeral 66 denotes a printing paper guide section, which is arranged to prevent paper jamming or interference with the ink ribbon 50.

The configuration of the belt presser row 256 in FIG. 5 is shown in FIG. 8. The rotational force of the timing belt 15, which has meshing teeth on both sides, is transmitted to the seventh rank portion 86' of the winding shaft 86 through the friction plate 85 by the push spring 84.
Rotate. However, when the lever 57 is in the state A (solid line) and in the state A' (point, I), the ratchet 87 is locked to the lever 57 and the rotation of the winding 4III] 86 is stopped. At the upper end of the winding shaft 86, the core 89 engages with the core body 76 of the ink ribbon 50 to wind the ink ribbon 50.

The cassette 13 will be described in FIGS. 6 and 7.

The ink ribbon 50 shown in FIG. 13 is set in the cassette 13 as shown in FIG. 7.

In FIG. 13, an ink surface 103 is protected and fixed to the end of a leader tape 102 (transparent part) by a single-sided adhesive tube 101, and a core 76 is attached to the tip of the leader tape 102.
The structure is such that it is adhered to a single-sided adhesive tape 101' to hold it in place, and is equipped with a core body 76 for winding. Cassette 1
3 holds a pinch roller 93 for feeding the ink ribbon 50 on a support 94, holds a presser roller 95 with a pusher 96, and winds up the ink ribbon 50. It will be rolled up.

Reference numeral 97 has a structure in which a plate spring 97 held in a cassette cup 91 and a core body 76 slide by friction in order to apply tension to the ink ribbon 50 on the supply side using a plate spring. The ink ribbon 50 moves along guide rollers 92 and 92' supported by the cassette case 90. The two pinch row shafts 60' engage with the pinch roller 93, and the take-up 86 engages with the core 89. The pinch roller 93
The winding speed corresponds to the moving speed of the carriage 12.

FIG. 14 shows an example of a thermal head support structure.

The thermal head 14 includes a heating resistor 14a.

Each resistor 14a' is divided into 24 resistors, which are arranged parallel to each other on a heat sink 14b, and the heat sink 14b is fixed to the heat sink fin 14C.

Here, the heat dissipation fin 14C has mounting portions 14d and 14d' press-molded on both sides with the heat dissipation plate 14b in between, and is held by the support body 52 at the end faces bent at right angles. FIG. 15 shows this mounting state. 1. Mounting part 14d of heat dissipation fin 14C of screws 105, 105';
The distance between the heights h1 and h2 is adjusted according to the mounting height 14d', and the structure is fixed to the support body 52 with screws 106 and 106'. Therefore, since hl 1 h2 can be selected independently, it is possible to adjust the inclination and at the same time adjust the positional relationship of the entire thermal head 14 with the platen 4.

FIG. 16 shows the configuration during printing. When the printing device is not used, the support 23 is held in the 2-3' state (dotted chain line) to form a housing, but when printing is desired, the support 23 is
The locking piece 107 is engaged with the locking hole 108 formed in the upper case 1 at the tip of the upper case 1, and the upper case 1 is held by the support frame 109 provided on the back of the support body 23 and the holding fitting 110 of the support frame 109. It is held by a locking part 111. In this state, the cut sheet is inserted between the platen 4 and the paper guide 64 with the left end aligned with the left end guide 112 of the support body 23, and the paper is set. When not in use, pull out the support 23 and remove the locking piece 1.
07 and the Sun Tzu hole 108, the support frame 109 can be rotated by the rotation of the locking part 111, and the support frame 109 is disposed at the upper part of the upper case 1 together with the lid 3. Reference numeral 113 denotes a protector for the platen 4, and one end of this protector forms, together with the paper guide 64, an opening for inserting a cut sheet.

In the above configuration, printing paper is set on the support 23 as shown in FIG. Control unit 6 according to instructions from the host
1 works. During printing, the carriage 12 moves to the right (direction B in Figure 5), the solenoid 68 is energized, rotates the pulley 55 and gear 59 in the state shown in Figure 5A, and the friction rotational force of the wave washer 58 causes the lever to move. -57 rotates counterclockwise and meshes with the gear 60 to rotate the pinch roller shaft 61', while
The belt presser row 256 rotates, and the winding shaft 86 touches the friction plate 8.
5, the head lever 70 rotates, and the head 1 is rotated through the locking piece 71, the spring 72, and the pressing lever 73.
4 and press the platen 4 with the ink ribbon 50 and printing paper 53 interposed.

In this state, when the carriage 12 moves by t in FIG. Friction coefficient μ between abrasion resistance and ink ribbon 50 base material surface (polyester layer)
The carriage 12 is pulled out from the cassette 13 by the amount of movement t of the carriage 12 against the tension generated by the friction of the ink ribbon 150 by the plate spring 97 of the cassette 13, which is much larger than the amount t. However, even when the carriage 12 is traveling to the right, the solenoid 68 in the non-printing area is in the state shown in FIG.
' does not rotate, so the ink ribbon 50 is not wound. At the time of return, the carriage 12 moves in the direction B' in FIG. 5 and the belt presser row 256 rotates, but the lever 57 and the ratchet 87 engage and the winding shaft 86 does not rotate. Therefore, the pinch roller shaft 61' and the winding shaft 86 do not rotate, and the ink ribbon 50 is not wound. As described above, the ink ribbon 50 is wound only during printing, the resistors 14a and 14a' of the thermal head 14 generate heat, all of the ink in the ink ribbon 50 is dissolved, and the ink is transferred to the printing paper in contact.

〔Effect of the invention〕

According to the present invention, when the user connects the core and the ink ribbon, it is possible to easily replace the ink cartridge in the cassette, and the second core is fixed to the ink ribbon. This makes it easy to attach to the cassette.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of a mechanical section, FIG. 3 is a sectional view of a paper feed drive section, FIG. 4 is a sectional view of the carriage 12, and FIG. 5 is a sectional view of a carriage 12. FIG. 6 is a plan view of the carriage 12, FIG. 6 is a sectional view of the cassette 13, FIG. 7 is a diagram showing how the ink ribbon 50 is installed in the cassette 13, FIG. 8 is a sectional view of the carriage 12, and FIG. 9 is a sectional view of the ink ribbon 50 feeding. One-way mechanism diagram; FIGS. 10 and 11 are perspective views and cross-sectional views of the paper guide 64; FIGS. 12 and 13 are configuration diagrams of the ink ribbon 50; FIGS. 14 and 15 are diagrams of the support state of the thermal head 14. , FIG. 16 is a paper feeding configuration diagram, and FIG. 17 is an ink ribbon transfer mechanism diagram during printing. 1... Upper case, 2... Lower case, 3... Lid body,
4...Platen, 5...Press roller, 8, 9...
Shaft body, 10... Gear, 12... Carriage, 14.
...Thermal head, 15...Timing belt, 1
6...Pulse motor, 17.18...Pulley, 20
...Paper feeding pulse motor, 22...Press roller, 2
3... Support body, 30.31... Side plate, 42... Drive gear, 43... Intermediate gear, 45... Motor base, 50... Ink ribbon, 54.59... Gear , 5
5...Pulley, 56...Belt presser roller, 57.
... Lever, 60 ... Gear, 60' ... Pinch roller shaft, 64 ... Paper guide, 65 ... Rotating shaft, 62゜62' ... Pressing roller, 68 ... Solenoid, 70
...Head lever, 71...Press lever, 72.Self-spring, 73..Head cam, 74..Ribbon sensor, 76..Spool, 84..Press spring, 85..
...Friction plate, 86... Winding shaft, 87... Ratchet, 89... Core, 90... Cassette base, 91...
...Cassette cover, 93...Pinch roller, 94.
... Support body, 95 ... Press roller, 97 ... Leaf spring, 109 ... Support frame, 110 ... Holding metal fitting, 112
...Left end guide, 113...Protective cover〇rod l Fig. 2 Fig. 3 Fig. 4 Fig. h' Fig. 7 Fig. 8 Fig. 7 Fig. 10 Fig. lt Fig. II Fig. 0 Fig. I2 Figure I3 Figure b lUI 103

Claims (1)

[Scope of Claims] 1. An ink ribbon having a base material coated with hot-melt ink on one side and a first core body around which the ink ribbon is wound into a coil, at the end of the winding of the ink ribbon. An ink ribbon for a printing device, characterized in that it holds two cores. 2. In claim 1, the first core and the second
An ink ribbon for printing equipment that has the same core. 3. In the first item, the winding end of the ink ribbon wraps the protective tape on the ink surface and is removably fixed there.
An ink ribbon for printing equipment that is made by fixing a core of.