KR100258323B1 - Tension keeping device of facsimile printing paper - Google Patents

Abstract

PURPOSE: A device for maintaining a tensile force of a recorded paper of a facsimile is provided to bend an anti curl plate in the reverse direction of rolling re-coring paper by providing a construction for rendering a re-coring paper to receive a fixed tension and pass an anti curl device. CONSTITUTION: A receiving groove(10) is extendedly formed to a bottom surface by providing a guide wall(13) and a guide hole(15) at the external portion of a side surface(11). A bushing(20) is slidably combined in the guide hole(15). A combining member(30) is inserted in the bushing(20) and is combined in the both side cores(43) of a re-coding paper(40). A concave-convex shaped guide hole(15) is formed at the side surface(11) of the receiving groove(10) by providing a guide wall(13) in the both side walls(11) of the receiving groove(10). An engaging groove(18) is formed at the inner portion of the guide hole(15) and combined to an engaging flag(38) for preventing the combining member(30) from being fallen into. The guide hole(15) is extended from a central upper portion of the side surface(11) of the receiving groove(10) to a bottom surface(12).

Description

Facsimile paper tension retainer

The present invention relates to a recording paper tension holding device that can be transported while maintaining a constant tension of the thermal recording paper of the facsimile, more specifically, it is configured so that the recording paper conveyed by the platen roller can be transported while maintaining a constant tension The present invention relates to a recording paper tension maintaining device capable of increasing the efficiency of an anti curl device.

In general, a facsimile is a device that electrically transmits and receives text, 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 printing it on a recording paper, and a platen roller for transporting the recording paper to the TPH.

On the other hand, such a facsimile is classified into a method of using a roll-type thermal recording paper specially processed according to the receiving unit, and a method of printing data using general paper and a thermal transfer ribbon.

Among the facsimile machines, the method of using the above-described thermal recording paper is provided with a recording paper seating portion capable of embedding the thermal recording paper inside the facsimile. Will be given.

However, the recording paper stored in the recording paper seating groove in the form of a roll has the property of being curled even after being discharged by the platen roller according to the output signal, and thus the ejected recording paper is difficult to organize documents because of the drying property. There was a disadvantage that it was inconvenient to read the printed contents.

Therefore, in order to prevent the curling of the outputted recording paper, a device (hereinafter referred to as an anti-curling device) is installed inside the facsimile to spread the recording paper in the opposite direction so as to prevent the curling of the outputted recording paper. It was.

A representative example of a facsimile machine installed with such an anti-curl device will be described with reference to FIG. 1.

In general, the cover panel 50 is installed to be opened and closed at the top of the facsimile, and the TPH 53 and the anti-cal plate 51 are installed at the bottom of the cover panel 50.

When the cover panel 50 is closed, the facsimile body of the cover panel 50 has the platen roller 54 in close contact with the TPH 53 and the anti-curl plate 51 in close contact with each other. An anti-curve groove 52 having a V-shape is provided, and a seating groove 10 in which the recording paper roll 40 is seated is formed.

When the recording paper roll 40 is installed in such a facsimile, the recording paper roll 40 is seated in the seating groove 10, and then the front end of the recording paper 41 is pulled so that it can pass through the platen roller 54 at least. When the cover panel 50 is closed, the recording paper 41 is installed to pass through the anti-curve plate 51 to the platen roller 54 and the TPH 53.

In this state, when a message is received from the outside, the platen roller 54 operates to transfer the recording paper 41, and the TPH 53 prints the message on the recording paper 41 according to the output signal. When the platen roller 54 pulls the recording paper 41, the recording paper 41, which is rolled in a roll form, moves toward the TPH 53, while the V-shaped anti-curve groove 52 and the anti-curve plate 51 are moved. Passing through the bent in the opposite direction of the roll is the roll shape is unfolded.

At this time, the recording paper 41 acts as an important factor among the various factors that determine how well the recording paper is unfolded while passing through the anti-curl devices 51 and 52. When passing through the devices 51 and 52, the pressure of the anti-cal plate 51 causes the recording paper 41 to bend at a certain level.

Therefore, when the recording paper 41 is pulled tightly and passes through the anti-curl devices 51 and 52, the anti-curve plate 51 hardly presses the recording paper 41, thereby causing bending. The pressure is increased to spread the recording paper 41 more effectively.

However, in the conventional anti-curl device, the platen roller 54 is rotated without any resistance other than frictional force with the mounting groove 10 due to the weight of the recording paper roll 40 installed in the recording paper seating groove 10. Since it is configured to be transferred according to the recording paper passing through the anti-curl device (51) (52) is passed without a separate resistance, the curl phenomenon remains as it is.

Therefore, the present invention has been devised to solve such a problem, and the main object of the present invention is to configure the recording paper to pass through the anti-curl device under a constant tension, so that the anti-cal plate is a recording paper. It is to make the bending bend in the opposite direction more effectively.

1 is a main portion side cross-sectional view showing a state in which a recording sheet is mounted on a conventional facsimile;

Figure 2 is a main portion side cross-sectional view showing a state in which the recording paper tension maintaining apparatus according to the present invention,

3 is an exploded perspective view illustrating a state in which the recording paper tension maintaining apparatus according to the present invention is assembled;

4 is a cross-sectional perspective view of the main portion showing the state where the recording paper tension maintaining apparatus according to the present invention is installed.

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

10: seating groove 11: side wall

12: bottom surface 13: guide wall

15: guide hole 16: step

20 bushing 21 insertion hole

22: spring 30: coupler

31: outer end 33: inner end

35: flange portion 37: mounting groove

38: spring 40: recording paper roll

41: recording sheet 43: core

50 cover panel 51 anti-cal plate

52: anti-curve groove 53: TPH

54: platen roller

The constituent means for achieving the present invention includes: a guide hole extending downwardly from the sidewall of the seating groove by a guide wall extending outwardly from both sidewalls of the seating groove;

A bushing slidably coupled in the guide hole and having an insertion groove having a predetermined depth at an inner end portion thereof;

An outer end portion of the member coupled to the insertion groove of the bushing, an inner end portion of the member coupled to the core of the recording paper, and an engaging portion having a protruding flange portion formed in the center of the member;

One end is coupled to the rear of the flange portion of the coupler is characterized in that it comprises a spring installed to pull down the seating groove in the direction parallel to the guide hole.

According to the above configuration, when the coupler coupled to both cores of the recording paper is pulled downward by the elasticity of the spring, the recording paper roll is brought into close contact with the bottom surface of the seating groove, and thus the recording paper is released from the recording paper roll. Since the frictional resistance at the time is increased, the tension is generated on the recording paper passing through the anti-curl device.

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

FIG. 3 is an exploded perspective view illustrating the assembling of the recording paper tension maintaining apparatus according to the present invention, wherein reference numeral 10 is a bottom surface 12 having a guide wall 13 and a guide hole 15 outside the side wall 11. It is a seating groove which is formed to extend to 20, 20 is a bushing is slidably coupled to the guide hole 15, 30 is inserted into the bushing 20 is inserted into the bushing 20, both cores 43 of the recording paper roll 40 Is a coupler coupled to).

Both sidewalls 11 of the seating groove 10 are provided with guide walls 13 having a predetermined shape in the outward direction to guide holes 15 of the concave-convex shape having a predetermined depth from the sidewall 11 of the seating groove. To form, but the outside of the guide hole 15 is a portion is inserted into the bushing 20 to be described later, the connection portion connected from the side wall 11 of the inner portion of the coupling end 30 to be described later to be.

In addition, the step 16 is formed at the center of the guide hole 15 such that the bushing 20 is inserted when the bushing 20 inserted into the outer guide hole 15 slides along the guide hole 15. This is to avoid twisting or falling out, and the locking groove 18 formed inside the guide hole 15 is a means for preventing the coupling hole 30 from being coupled with the locking jaw 38 of the coupling hole.

In addition, the guide hole 15 should be installed to extend at least from the center upper portion of the seating groove side wall 11 to the bottom surface 12, wherein the lower end of the guide hole 15 is a bushing 20 to be described later It must be manufactured in an open form so that it can be combined.

Bushing 20 is a member that is inserted into the outer guide hole 15 of the U-shape to be slidably coupled, the inner end of the bushing 20 is formed with an insertion groove 21 having a predetermined depth, The insertion groove 21 is provided with a compression coil spring 22 is configured to elastically install the coupler 30 to be described later.

The coupling tool 30 inserts the outer end into the insertion groove 21 of the bushing through the inner guide groove 15, and couples the inner end to both sides of the core 43 of the recording paper roll. As a configured part, the flange portion 35 is formed at the center front of the coupler 30 so as to be caught by the end of the core 43, and the disk-shaped locking jaw 38 is formed at the center rear as described above. The coupler 30 is configured to not fall out of the insertion groove 21 of the bushing. In addition, an installation groove 37 to which the tension spring 38 to be described later is coupled is formed outside the flange portion 35 of the coupler.

One end of the tension coil spring 38 is coupled to the installation groove 37 of the coupler, and the other end of the tension spring 38 has a bottom surface 12 of the seating groove along the guide hole 15. Installed in the coupling groove formed in the end, and serves to pull the recording paper roll 40 in close contact with the seating groove bottom surface 12.

An operation example of the present invention having the above configuration will be described with reference to FIG. 4.

First, the coupling hole 30 installed in the insertion groove 21 of the bushing is made of a slightly different size of the recording paper roll 40 by the elasticity of the spring 22 provided in the insertion groove 21. Even if it is elastically coupled to the above-described both cores 43.

On the other hand, since the coupling hole 30 is coupled to the recording paper roll 40 is coupled to the tension spring 38 is pulled toward the bottom surface 12 of the seating groove, the recording paper roll 40 It will be in close contact with the bottom surface 12 of the seating groove.

Therefore, when such recording paper is released from the recording paper roll 40, frictional resistance is generated between the recording paper roll 40 and the bottom surface 12 of the seating groove, thereby preventing the anti-curl devices 51 and 52 of FIG. It passes through under tension.

As can be seen from the above, the facsimile recording paper tension holding device according to the present invention, in addition to the weight of the recording paper roll 40, the recording paper roll 40 is seated by the elastic force of the tension spring 38 described above. Because of being in close contact with the bottom surface 12, the frictional resistance between the recording paper roll 40 and the seating groove 12 is increased.

Accordingly, the recording paper 41 passing through the anti-curl devices 51 and 52 is subjected to more tension by the frictional resistance, and the anti-cal plate 51 faces the recording paper 41 in the opposite direction. By making the bending pressure to be bent to a greater degree, the facsimile which can unfold the recording paper 41 more effectively can be provided.

Claims (4)

In the recording sheet seating groove 10 to which the thermal recording paper roll 40 is mounted, The guide wall 13 extending outwardly from both sidewalls 11 of the seating groove 10 extends below the seating groove 10 with a predetermined depth from the sidewall 11 of the seating groove. A guide hole 15; A bushing 20 slidably coupled in the guide hole 15 and having an insertion groove 21 having a predetermined depth at an inner end portion thereof; The outer end portion of the member is coupled to the insertion groove 21 of the bushing, the inner end portion of the member is coupled to the core 43 of the recording paper, the engaging portion formed with a protruding flange portion 35 in the center portion of the member ( 30); One side end is coupled to the rear end of the flange portion 35 of the coupling sphere, characterized in that it comprises a spring 38 installed to pull down the seating groove 10 in a direction parallel to the guide hole (15) Recording paper tension holding device. The facsimile of claim 1, wherein a constant step 16 is formed inside the guide hole 15 so that the bushing 20 can slide along the guide hole 15 without falling out or twisting. Recording paper tension retainer. The method according to claim 1, wherein the spring 22 is provided in the insertion groove 21 of the bush to which the coupler 30 is coupled so that the inner end of the coupler 30 is resilient to the core 43 of the recording paper roll. Facsimile recording paper tension holding device, characterized in that configured to be coupled. The method of claim 1, further comprising a disk-shaped locking jaw 38 to the rear of the flange portion 35 of the coupling hole 30, the locking jaw 38 of the coupling hole along the inner side of the guide hole (15) And a engaging groove (18) having a structure to be joined to the structure, so that the coupler (30) does not fall out of the insertion groove (21) of the bushing.

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