JPH02208080A - Device for mounting of ink ribbon - Google Patents

Abstract

PURPOSE:To smoothly mount an ink ribbon, and to easily set the ribbon with easiness of the same degree as that of a conventional cartridge in a using state by removing the ribbon guide after mounting by forming a ribbon guide in response to an ink ribbon feeding state in a printer. CONSTITUTION:An ink ribbon mounting device has a ribbon core 2 on which an ink ribbon 1 is wound, a takeup core 4 provided at the core 2, rotation transmitting means 3 rotatably driven by a printer side, a holder 5 provided to rotatably support the cores 2, 4 from a base, and a ribbon guide 6 so formed as to match a feeding state at the time of mounting a printer of the ribbon 1 and so provided as to be removed from the holder 5. When the device is inserted into the printer and the guide 6 is removed from the holder 5, the ribbon 1 is wound from the core 2 to the core 4.

Description

[Detailed Description of the Invention] [Summary] Regarding an ink ribbon mounting device for mounting an ink ribbon on a printing device such as a printer or a typewriter, an ink ribbon mounting device that allows easy replacement of the ink ribbon and has low running costs is provided. A ribbon core around which an ink ribbon is wound, a winding core provided parallel to the ribbon core with a winding side end of the ink ribbon being locked, and a tip end of the winding core. a rotation transmitting means which is rotatably driven from the printing device side; a holder provided to rotatably support the ribbon core and the winding core from the base side; The ribbon guide is formed to match the running shape, and is detachably provided to the hole, with the ink ribbon along the outer surface thereof.

[Industrial application field]

The present invention relates to an ink ribbon mounting device for mounting an ink ribbon on a printing device such as a printer or a typewriter.

In printing devices such as printers and typewriters, ink ribbons are consumables and need to be replaced very frequently depending on usage conditions. Therefore, users are looking for an ink ribbon mounting device that allows easy ribbon replacement and is low cost.

[Conventional technology]

Conventionally, ink ribbons in printing devices have been replaced by replacing only a single ribbon roll made of ink ribbon wound into a roll, or by replacing the ink ribbon in the form of a ribbon cartridge loaded in a plastic case.

[Problem to be solved by the invention]

However, those in which a single ribbon roll is replaced have a low cost but are troublesome to replace, and those in the form of a ribbon cartridge have the disadvantage that, although replacement is easy, running costs are very high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ink ribbon mounting device that eliminates such conventional drawbacks, allows easy replacement of ink ribbons, and has low running costs.

[Means to solve the problem]

In order to achieve the above object, the ink ribbon mounting device of the present invention, as shown in FIG. a winding core 4 whose winding side end is locked and is provided parallel to the ribbon core 2; a rotation transmitting means 3 which is provided at the tip of the winding core 4 and is rotationally driven from the printing device side; The above ribbon core 2 and winding core 4
A holder 5 is provided to rotatably support the ink ribbon 1 from the base side, and a holder 5 is formed to match the running shape of the ink ribbon 1 when the ink ribbon 1 is attached to the printing device, and the ink ribbon 1 is placed along the outer surface of the holder 5. It is characterized by having a ribbon guide 6 removably provided with respect to 5.

[Effect]

When the ink ribbon mounting device of the present invention is inserted into a printing device, the ink ribbon l is guided to a predetermined running position along the ribbon guide 6. Then, if the ribbon guide 6 is removed from the holder 5 in this state, the ink ribbon l
remains in place, and the rotation transmission means 3 is rotated from the evening side.
When the winding core 4 is rotated through the ink ribbon 1, the ink ribbon 1 is wound from the ribbon core 2 side to the winding core 4 side.

〔Example〕

Examples will be described with reference to the drawings.

FIG. 1 is a plan sectional view of the embodiment, FIGS. 3 and 4 are sectional views taken along lines 1--2 and IV-IV, and FIG. 2 is an exploded perspective view.

In the figure, l is an ink ribbon, which is wound around an elongated cylindrical ribbon core 2, and its winding side end is attached to a winding core 4 formed in the same shape as the ribbon core 2, either directly or with tape. It is attached and locked by. both cores 2
．． 4 are arranged in parallel, and at the tip of each core 2, 4 there is a rotation transmission piece 30 that engages with a rotation drive member (not shown) on the printer side and transmits rotation to each core 2.4. 3 is inserted. 21.41 is an engagement groove drilled at the mouth of the core 2.4, and 301.31 is the engagement groove 21.4.
This is a projection provided on the rotation transmitting piece 30°3 so as to engage with the rotation transmitting piece 30°3.

The rotation transmission piece 30.3 is formed in a tapered shape. A positioning hole 302.32 into which the protruding center shaft of the rotational drive member on the printer side fits is formed in the center, and a knurled groove is formed in the tapered surface 303.33 inside the mouth. Rotation is transmitted from a rotational drive member on the side.

The base sides of both cores 2.4 are supported by a holder 5 so as to be rotatable and parallel to each other. Reference numeral 51 denotes an 8-bar that is loosely inserted into both cores 2 and 4. The 8-bar 51 maintains the parallelism of both cores 2 and 4, and the 8-bar 51 allows both cores 2.4 to freely rotate around their shafts. supported. Further, the tip portion of the claw 52 protruding from the holder 5 is connected to a circumferential groove portion 53 formed on the outer periphery of both cores 2 and 4.
As a result, both cores 2.4 are engaged with the 8 rods 5.
There is a stopper to prevent the removal from coming out from 1. 54 is a handle for gripping the holder 5.

A ribbon guide 6 is arranged along the outer surface of the ink ribbon 1 between the cores 2 and 4, and is made of, for example, cardboard or a synthetic resin plate. The ribbon guide 6 is formed to have a cross-sectional shape that matches the running shape of the ink ribbon l when it is installed in the printer, and can be freely inserted into and removed from a guide groove 55 formed in the same shape in the holder 5. is inserted into. Also, the ribbon guide 6
Both ends on the base side are hooked to the holder 5 so as to sandwich guide pins 56 protruding from the holder 5 so as not to wobble. The end of the ribbon guide 6 that has passed through the guide groove 55 is bent on the side of the handle 54, and if this bent part 61 is strongly pulled, the engagement between the ribbon guide 5 and the guide pin 56 is released, and the end of the ribbon guide 6 passes through the guide groove 55. The ribbon guide 6 can be removed to the handle 54 side by passing through the handle.

Reference numeral 57 denotes a positioning hole that engages with a positioning pin (not shown) provided on the printer side when the printer is attached to the printer, and is bored at a position immediately inside the guide groove 55.

FIG. 5 is a front view of a frame on the printer side to which the above-mentioned ink ribbon 1 is mounted. 91.92 is core 2.
4 is inserted into the hole. Reference numerals 93 and 94 denote guide rollers and guide shafts that serve as travel guides for the ink ribbon 1, and the above-mentioned positioning bin is provided at the tip of the guide shaft 94.

The ribbon guide 6 described above has a shape that follows these guide rollers 93 and guide shaft 94. Reference numeral 95 designates a print head, and reference numeral 96 designates a lock lever that holds down the holder 5 from the outside after the ink ribbon 1 is attached and locks it so that it does not come out.

When the ink ribbon mounting device of the above embodiment configured in this way is mounted on a printer, the rotation transmission piece 30.3 formed in a tapered shape serves as an insertion guide, and the two cores 2 , 4 are inserted into the holes 91, 92 of the frame. At that time, the ribbon guide 6 is connected to the guide roller 93 and the guide shaft 94, as shown in FIG.
The core 2.4 is inserted into the printer side along with the core 2.4. At this time, the ink ribbon l remains arranged along the outer surface of the ribbon guide 6.

When the ink ribbon l is inserted along the outer surface of the ribbon guide 6 along with the core 2 . engaged and positioned. On the base side, a positioning pin on the printer side is engaged with the positioning hole 57 of the holder 5 and positioned. Then, the lock lever 96 is rotated to hold the holder 5 from the outside as shown in FIG. In this state, the ribbon guide 6 is
Pull it out through the guide groove 55 of the holder 5. Then, the ink ribbon 11 core 2.4 and the holder 5 remain in the frame of the printer, and only the ribbon guide 6 is pulled out and removed. As a result, the ink ribbon 1 comes into contact with the guide roller 93 and the guide shaft 94 and is ready for use.

When the ink ribbon 1 is used up and is to be removed from the printer, the used ink ribbon l is removed from the core 2 by lifting the lock lever 96 to the state shown in FIG. , 4, etc.

〔Effect of the invention〕

According to the ink ribbon mounting device of the present invention, when the ink ribbon is mounted on the printing device, the ribbon guide is formed to match the running shape of the ink ribbon within the printing device, so that the ink ribbon can be mounted smoothly. By removing only the ribbon guide after installation, the ink ribbon can be set into use almost as easily as a conventional cartridge. Furthermore, unlike conventional cartridges, there is no need to surround the ink ribbon with a plastic case, so component costs and assembly costs are low, and running costs can be significantly reduced compared to the cartridge system.

FIG. 6 is a front view of the ink ribbon mounting device of the embodiment installed.

··ink ribbon, ・Ribbon core, rotation transmission means, ・-winding core, holder ribbon guide.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of the embodiment; Figure 2 is an exploded perspective view of the embodiment; Figure 3 is a cross-sectional view taken along the line ■-■ of the embodiment.

Claims (1)

[Scope of Claims] A ribbon core (2) around which an ink ribbon (1) is wound, and a winding provided parallel to the ribbon core (2) with the winding side end of the ink ribbon (1) locked. Take core (4
), a rotation transmitting means (3) provided at the tip of the winding core (4) and rotationally driven from the printing device side, and rotatable to each of the ribbon core (2) and the winding core (4). A holder (5) is provided to support it from the base side.
), which is formed to match the running shape of the ink ribbon (1) when it is attached to the printing device, and is removably provided with respect to the holder (5) with the ink ribbon (1) along the outer surface. An ink ribbon mounting device characterized by having a ribbon guide (6).