KR19990011160U - Wrinkle prevention device of thermal transfer ribbon for fax - Google Patents

Abstract

The present invention relates to a plain paper facsimile, and to provide a wrinkle preventing device for the thermal transfer ribbon for facsimile that can prevent the thermal transfer ribbon is folded or wrinkled when passing through TPH. The present invention is a general paper facsimile wound on the winding roller (40b) after the thermal transfer ribbon (50a) wound on the setting roller (30a) passing through the TPH (12), a fixed distance spaced apart along the outer peripheral surface of both ends The guide projections formed on the outer circumferential surface of the rollers are composed of rollers 30b and 40b on which the rollers 48 are formed, and thermal transfer ribbons 50b having guide holes 52 formed at both ends thereof to be fixed to the locking projections 48. By inserting and winding the guide hole of the thermal transfer ribbon, it is possible to prevent the thermal transfer ribbon from being wrinkled or folded as the tension is kept constant in the thermal transfer ribbon.

Description

Wrinkle prevention device of thermal transfer ribbon for fax

The present invention relates to a plain paper facsimile, and more particularly, to a wrinkle preventing device of a thermal transfer ribbon for a facsimile that can be prevented from being folded or wrinkled when passing through the thermal head (TPH).

In general, a facsimile is a device that electrically transmits and receives texts, pictures, and photographs on a paper, and includes a transmission unit including a CIS (Contact Image Sensor) that recognizes the contents of the document and a CIS roller that transfers the document to the CIS. It is divided into a receiving unit including a TPH (Thermal Print Head) for receiving an electrical signal received from the outside and recording it on a recording surface, and a platen roller for supplying recording paper to the TPH. Therefore, when the original is inserted into the document insertion slot of the transmitter, the CIS roller transfers it to the CIS, and the CIS recognizes the content of the original and converts it into an electrical signal, and the receiving machine sends the platen roller when the received message is delivered. The recording paper is supplied to the TPH, which records the transmitted message in text, picture and photograph on the thermal recording paper.

A facsimile having the above-described configuration is generally classified into a model using heat-treated, rolled recording paper and a model using general paper as recording paper. A model using plain paper is moved to the TPH 12 by the document feed roller in a tray on which plain paper recording paper is set as shown in FIG. At this time, when passing through the TPH 12, the carbon layer of the thermal transfer ribbon is converted into a solid solution and output to the recording paper.

FIG. 2 is an exploded perspective view illustrating the cartridge in which the thermal transfer ribbon of FIG. 1 is mounted, and reference numeral 20 denotes a cartridge on which a thermal transfer ribbon is mounted, 30a is a setting roller wound around a thermal transfer ribbon, and 40a The thermal transfer ribbon wound around the setting roller is a winding roller wound through the TPH.

The cartridge 20 has a housing 22 extending to have a predetermined radius of curvature on both end surfaces of the rectangular plate shape, and the through hole 26 is formed in the center at both end surfaces of the housing 22. ) Is formed. And the center portion between the housing 22 on both sides is formed with a seating portion 28 cut so that the TPH 12 shown in FIG.

The setting roller 30a and the winding roller 40a are formed in the same shape, and the setting roller 30a is wound in the form of a thermal transfer ribbon 50a in the production line. Both side rollers (30a, 40a) is formed in a rod shape of a predetermined length spaced apart projections 48 in a hub shape on the inner circumferential surface of one side end of the rotary bar 44 is empty. And the guide 46 of the circular plate is coupled to the outer circumferential surface of both sides of the rotary bar 44 spaced apart by the width of the thermal transfer ribbon (50a).

In the cartridge 20 configured as described above, both ends of the rotating bar 44 wound with the thermal transfer ribbon 50a wound inside the guide 46 are inserted into the through holes 26 formed in the bracket 24, and the other side bracket is inserted into the cartridge 20. 24, the winding roller 40a is coupled. After passing through the thermal transfer ribbon (50a) wound on the setting roller (30a) in the above-described state in contact with the TPH (12) as shown in FIG. (51) or the like.

As the setting roller 30a is rotated by the driving device not shown in the drawing by the assembly method described above, the thermal transfer ribbon 50a wound by the setting roller 30a is transferred to the winding roller 40a. The carbon layer is melted by the heat of 12), and data is printed on the recording paper.

However, the thermal transfer ribbon (50a) is passed through the TPH (12) when the carbon layer is consumed when the thermal transfer ribbon (in the process of mounting to be wound by the drive device from the setting roller 30b to the winding roller (40a) The first end of 50a) is attached to the surface of the winding roller 40a with a tape 51 or the like. At this time, in the process of attaching the thermal transfer ribbon (50a) to the surface of the winding roller (40) by combining the thermal transfer ribbon (50a) by the user's eye guess or skill, the first end surface of the thermal transfer ribbon is wound roller (40a) There is a case where the direction is attached incorrectly without being attached in a straight line on the surface of the). Therefore, when the thermal transfer ribbon 50a is wound from the setting roller 30a to the winding roller 40a by the driving device, the thermal transfer ribbon 50a is not uniformly transmitted when the both sides of the thermal transfer ribbon are wound. When passing through 12), data may not be output properly due to wrinkles or folding.

Therefore, the present invention has been devised to solve the above-mentioned problem.

An object of the present invention is to provide a thermal transfer ribbon winding device for forming a guide protrusion on the surface of the winding roller to be wound properly on the winding roller according to the state coupled to one side.

1 is a cross-sectional view showing a state in which a conventional plain paper facsimile operation,

2 is an exploded perspective view illustrating a state in which a conventional thermal transfer ribbon is set;

Figure 3 is an attempt to remove the yarn shown to separate the state set the thermal transfer ribbon according to the present invention,

Figure 4 is a state diagram showing the main portion of the thermal transfer ribbon wound state according to the present invention.

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

10: facsimile 12: TPH

20: cartridge 22: housing

24 Bracket 26 Through Hole

28: mounting portion 30a, 30b: setting roller

40a, 40b: winding roller 42: guide protrusion

44: rotation bar 46: guide

48: jamming protrusion 50a, 50b: thermal transfer ribbon

52: guide hole

Means for achieving the object of the present invention is a general paper facsimile wound on the winding roller after passing the thermal transfer ribbon wound on the setting roller, TPH,

A roller having a protrusion formed at a predetermined distance apart from the outer circumferential surface of both side ends thereof,

It can be achieved with a thermal transfer ribbon formed with guide holes at both ends to be fixed to the locking projection.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view showing a state in which the thermal transfer ribbon is coupled to the cartridge according to the present invention, reference numeral 20 is a cartridge, 30b is a setting roller wound around the thermal transfer ribbon, and 40b is transferred from the setting roller. It is a winding roller to which the thermal transfer ribbon is wound.

The cartridge has the same form and reference numerals described in FIG.

The setting roller 30b and the winding roller 40b have a hub-shaped locking protrusion 48 connected to a driving device not shown in the drawing on the inner circumferential surface of both ends of the rotating bar 44 having a hollow rod shape. It protrudes very much. The guide 46 of the circular plate having a fastening hole formed in the center is provided at both side ends of the outer circumferential surface at a distance separated by the width of the thermal transfer ribbon 50b. In addition, the guide protrusion 42 is formed on the outer circumferential surface of the rotation bar 44 inside the guide 46 to be spaced apart by a predetermined distance.

The thermal transfer ribbon 50b is mounted in the setting roller 30b in a roll shape, and guide holes 52 are formed at both ends of a predetermined length from the initial front end surface.

Looking at the assembly and operation of the cartridge combined in the above-described configuration is as follows.

4 is a state diagram showing a state in which the thermal transfer ribbon is wound on the cartridge according to the present invention, a setting roller having the thermal transfer ribbon 50b wound around one side of the bracket 24 of the cartridge 20 shown in FIG. The fire bar of 30b is coupled to the through hole 26 to be exposed, and the winding roller 40b is coupled to the other side. At this time, the locking projection 48 formed on the inner circumferential surface of the rotary bar 44 is connected to the driving device not shown in the drawing is rotatable to the rotary bar 44. Rotate the guide holes 52 formed on both sides of the thermal transfer ribbon 50b to couple the first end surface of the thermal transfer ribbon 50b wound around the setting roller 30b to the winding roller 40b in the coupled state. Guide protrusions 42 protruding from the outer circumferential surface of the bar 44 are inserted. At this time, since the guide holes 52 formed on both sides of the thermal transfer ribbon 50b are symmetrically formed, the thermal transfer ribbon 50b is positioned on the outer circumferential surface of the winding roller 40b so that both sides are aligned in a straight line. Since the tension of 50b) is evenly distributed, the thermal transfer ribbon 50b may be prevented from being wrinkled or folded when passing through the TPH 12 shown in FIG. 1.

Looking at the effects of the operation of the present invention described above are as follows.

Since the guide hole 52 of the thermal transfer ribbon 50b is fixed to the guide protrusion 42 formed on the outer circumferential surface of the rollers 30b and 40b, the thermal transfer ribbon 50b is wound as the roller rotates. By maintaining a constant tension in the) it can be prevented from being folded or wrinkled when passing through the TPH (12).

Claims (1)

In the general paper facsimile wound around the winding roller 40b after the thermal transfer ribbon 50a wound on the setting roller 30a passes through the TPH 12, Rollers 30b and 40b having locking projections 48 formed to be spaced apart from each other along the outer circumferential surface of both side ends, Clamping prevention device of the thermal transfer ribbon for the facsimile, characterized in that consisting of a thermal transfer ribbon (50b) formed with guide holes (52) at both ends to be fixed to the engaging projection (48).