KR200182775Y1 - Fastening device for thermal transfer ribbon - Google Patents

Abstract

The present invention relates to a thermal transfer ribbon of a plain paper facsimile, the main purpose of the present invention is to hold the above-mentioned winding roller and feed roller by the holder in the state that the thermal transfer ribbon cartridge is separated from the facsimile, the thermal transfer ribbon is released The present invention provides a thermal transfer ribbon anti-loosening device configured to be able to prevent losing, and when such a cartridge is mounted on a facsimile, the holding state is automatically released to transfer the thermal transfer ribbon.

The constituent means for achieving the object of the present invention, the holder 20 is coupled to the rotary sphere 30 by the elasticity of the spring 18 in the state of separating the thermal transfer ribbon cartridge 10 in the facsimile When the rollers 39 and 49 are prevented from being loosened, and the thermal transfer ribbon cartridge 10 is mounted in the seating groove 57 inside the facsimile, the release piece 29 installed in the seating groove 57 is The holder 20 is characterized in that it is configured to be installed to be rotatable by separating from the rotary sphere (30).

Description

Thermal transfer ribbon loosening device

The present invention relates to a thermal transfer ribbon of a plain paper facsimile, and more particularly, a thermoelectric ribbon which prevents the rollers from freely loosening when replacing or installing a roller wound with a thermal transfer ribbon so that the thermal transfer ribbon wound on the roller does not stretch. The present invention relates to a device for preventing loosening of saribone.

In general, a facsimile machine is an apparatus for electrically transmitting and receiving text, pictures, and photographs on a paper. The facsimile is composed of a CIS (Contact Image Sensor) that recognizes the contents of the document and a CIS roller that transfers the document. It is divided into a receiving unit comprising a TPH (Thermal Print Head) for receiving the received electrical signal and printing it on the recording paper, and a platen roller for supplying the recording paper to the TPH.

Such a facsimile is generally divided into a method of using a thermal recording paper rolled in a roll form by applying a special medicine and a method of using a general paper, the method of using a general paper, as shown in Figure 1, paper cassette The recording paper contained in the (50) is configured to pass through the TPH 55 by the pickup roller 51 and the platen roller 53, etc., wherein a thermal transfer ribbon is interposed between the TPH 55 and the recording paper. It is configured to print data while being transferred.

Meanwhile, the thermal transfer ribbon cartridge 10 of FIG. 2 has two pairs of bearings 11, each of which is provided with a winding roller 39 on which used ribbons are wound and a supply roller 49 on which unused ribbons are wound. Is formed in the tip portion, this bearing 11 is configured to form a constant groove in which one side of the lower side is opened to insert the rollers 39, 49 in the lower portion to be coupled. In addition, an opening in which the TPH 55 shown in FIG. 1 is seated is formed at an inner center of the cartridge 10.

The winding roller 39 and the supply roller 49 are formed in the same shape, and the thermal transfer ribbon which is not used in the supply roller 49 is wound in a roll shape, and the winding roller 39 has the TPH of FIG. 1. The thermal transfer ribbon after the data is printed through 55 is wound.

However, when the thermal transfer ribbon wound around the cartridge 10 is to be mounted or replaced inside the facsimile, it is separated from the cartridge seating groove 57 of the facsimile, wherein the supply roller 49 and the winding roller 39 are described above. Is easily rotated and the thermal transfer ribbon wound on the rollers 39 and 49 is loosened and sag due to its own weight, so when folded inside the facsimile, it is folded or wrinkled, resulting in poor printing of the data, TPH 55 or platen There is a problem that adversely affects the operation caused by the mechanism such as the roller (53).

Therefore, the present invention was devised to solve this problem, and the main object of the present invention is to separate the cartridges on which the thermal transfer ribbon is rolled out of the facsimile, and the above-mentioned winding roller and the supply roller are held by the holders. It is possible to prevent the thermal transfer ribbon from being loosened, and when the cartridge is mounted on the facsimile, the above-described holding state is automatically released to provide a thermal transfer ribbon loosening prevention device configured to transfer the thermal transfer ribbon.

1 is a sectional view of the main portion showing the internal structure of a facsimile equipped with a thermal transfer ribbon;

2 is a perspective view of main parts of a conventional thermal transfer ribbon cartridge;

Figure 3 is a perspective view showing the main portion coupled to the thermal transfer ribbon loosening prevention device according to the present invention,

Figure 4a is a side view of the main portion showing a state in which the device according to the present invention holding the roller,

Figure 4b is a side view of the main part showing a state in which the device according to the present invention is released.

*** Explanation of symbols for the main parts of the drawing ***

10: cartridge 11: bearing

15: hook 17: protrusion

18: spring 20: holder

21: sliding surface 22: stop protrusion

25: coupling groove 27: through groove

29: release piece 30: rotary ball

31: guide disc 32: locking groove

33: gear 35: shaft end

37: coupling portion 38: core

39: winding roller 49: feeding roller

50: paper feed cassette 51: pickup roller

53: platen roller 55: TPH

57: cartridge seating groove

A constituent means for achieving the object of the present invention is a thermal transfer ribbon cartridge wound around the transfer roller and the supply roller,

Projections and hooks formed on the inner surface of the bearing of the cartridge;

A coupling groove coupled to the hook is formed at one end of the member, and a through groove coupled to the protrusion having a spring is formed at the center of the member, and a stop protrusion protruding inward is formed at the other end of the member. With a holder;

It is coupled to the core of one side of the winding roller and the supply roller rotatably coupled to the bearing of the cartridge, and provided with a plurality of locking grooves in which the stop projection is inserted at regular intervals in the guide disc guides the side of the thermal transfer ribbon. A rotary ball to make;

And a holder release means for automatically releasing the holding state when the thermal transfer ribbon cartridge of the holding state coupled to the stopper and the engaging groove is mounted inside the facsimile.

According to the above configuration, in the state in which the thermal transfer ribbon cartridge is separated from the inside of the facsimile, the holder is coupled to the locking groove of the rotary tool by the elasticity of the spring to prevent the loosening of the roller. When installed in the seating groove of the release groove is installed in the seating groove is installed to be rotatable by separating the holder from the locking groove of the rotary hole.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

3 is a perspective view showing a main portion of the thermal transfer ribbon loosening device according to the present invention is coupled, reference numeral 10 is a thermal transfer ribbon cartridge having a bearing 11 formed in pairs at each of the front end, 20 Is a holder installed inside the bearing 11 to hold the rotary holes 30 at the shaft ends of the rollers 39 and 40, and 30 is a core of the winding roller 39 and the supply roller 49 ( 38) It is a rotary ball that is fitted to both ends and coupled to the bearing 11 of the thermal transfer ribbon cartridge.

The thermal transfer ribbon cartridge 10 forms a pair of bearings 11 at both ends thereof, and the inner surface of the one bearing 11 has a snap fit hook 15 at an upper portion thereof, and at one side thereof. The projection 17 for installing the spring 18 is provided.

Holder 20 is a member for holding the rotary sphere 30 to be described later, the coupling groove 25 is coupled to the hook 15 of the thermal transfer ribbon cartridge is formed at one end, the central portion is The through groove 27 is formed to be coupled to the projection 17 of one thermal transfer ribbon cartridge. The other end of the holder 20 is formed with a sliding surface 21 which is bent back to a predetermined length and bent in the center direction of the bearing 11 again, and the end of the sliding surface 21 is rotated as described above. A stop protrusion 22 is coupled to the locking groove 32 of the sphere.

Rotator 30 is a member that is coupled to the one side core 38 of the winding roller 39 and the supply roller 49 is rotated by being coupled to the bearing 11 of the cartridge, such a rotary ball 30 The guide portion 31 for guiding the side of the thermal transfer ribbon wound around the coupling portion 37, which is fitted to the core 38, the roller 39, 49, and the drive not shown in the drawings A gear 33 that is engaged with a gear train provided on both sides of the frame so as to be interlocked by a motor and receives power, and an shaft end 35 that is coupled to the bearing 11 of the cartridge are integrally connected to each other. At this time, the guide disc 31 is formed with a engaging groove 32 is coupled to the stop projection 22 at a predetermined interval at a constant radius.

As the holder release means, a release piece 29 protruding upward is installed at one side of the cartridge seating groove 57 in the facsimile of FIG. 1, and the release piece 29 is inclined in the outward direction. When the cartridge 10 is mounted in the seating groove 57 of FIG. 1, the sliding surface 21 is retracted outward while being engaged with the sliding surface 21 of the holder, thereby causing the locking groove 32 of the above-described turning tool to be retracted. By separating the stop projection 22 is coupled to the rollers 39, the pair of 49 can be installed rotatably.

An operation example of the present invention by the above configuration will be described with reference to FIGS. 4A and 4B.

First, in a state where the thermal transfer ribbon cartridge 10 is separated from the inside of the facsimile to install or replace the thermal transfer ribbon, the holder 20 is coupled to the locking groove 32 of the rotational hole by the elasticity of the spring 18. As a result, the loosening of the rollers 39 and 49 is prevented.

On the contrary, when the thermal transfer ribbon cartridge 10 is mounted in the seating groove 57 inside the facsimile of FIG. 1, the inclined surface of the release piece 29 protruding from the seating groove 57 is the sliding surface 21 of FIG. 3. By retracting the holder 20 while being coupled, the holder 20, which is holding the rotating tool 30, is separated, and the thermal transfer ribbon can be transferred.

As can be seen from the above, the thermal transfer ribbon loosening device according to the present invention is the holder 20 is in the state that the thermal transfer ribbon cartridge 10 is separated from the inside to replace or install the thermal transfer ribbon Combined with the rotary ball 30, the thermal transfer ribbon is loosened to prevent it from being stretched for a long time to be folded or wrinkled. When the thermal transfer ribbon cartridge 10 is mounted inside the facsimile, the holding state is automatically released to thermoelectric. Since the sari ribbon is installed to be transported, there is a problem such as a poor printing state of the data or bad effect on the operation of the machine, which occurs as the thermal transfer ribbon wound on the roller is installed inside the facsimile in a long stretched state. It is possible to provide a thermal transfer ribbon cartridge that can be prevented.

Claims (2)

In the thermal transfer ribbon cartridge 10 wound around the winding roller 39 and the supply roller 49, A projection (17) and a hook (15) formed on the inner surface of the bearing (11) of the cartridge (10); One end of the member is formed with a coupling groove 25 is coupled to the hook 15, the central portion of the member is formed with a through groove 27 is coupled to the protrusion 17, the spring 18 is installed A holder 20 having a stop protrusion 22 protruding inwardly at the other end of the member; It is coupled to one side core 38 of the winding roller 39 and the supply roller 49 is rotatably coupled to the bearing 11 of the cartridge, the guide disk 31 for guiding the side of the thermal transfer ribbon A rotary tool 30 having a plurality of locking grooves 32 into which the stop protrusions 22 are inserted at predetermined intervals; When the thermal transfer ribbon cartridge 10 of the holding state combined with the stop projection 22 and the locking groove 32 is mounted inside the facsimile, it comprises a holder release means for automatically releasing the holding state. Thermal transfer ribbon loosening prevention device characterized in that. According to claim 1, wherein the holder release means is the holder 20 so that the holder 20 can be rotated about the hook 15 when the cartridge 10 is mounted in the seating groove (57) Thermal transfer ribbon loosening prevention device, characterized in that the release piece 29 having an inclined surface in the lower portion is located.