KR100193397B1 - Facsimile recording paper tension control device using fluid resistance - Google Patents

Abstract

According to the present invention, dampers are provided on both side walls of the recording tray on which the recording paper is seated to support both sides of the recording paper so that the damper is subjected to resistance of a fluid inversely proportional to the rotational speed of the recording paper. The present invention relates to a facsimile recording paper tension control device using a resistance of a fluid which gives tension in inverse proportion to the number of revolutions and reliably spreads the recording paper discharged through the anti-curl device.

In the structure of the present invention described above, a fluid chamber 41 filled with a fluid is formed therein, and a body 40 having a flange 48 at both sides thereof, and rotatably installed through a central portion of the body 40. On the outer circumference of the fluid chamber 41, the rotary blade 72 has a rotary shaft 70 in a radial shape, and a paper portion 52 tapered in the direction in which the recording paper 20 is fitted. Rotator 50 is coupled to the end of the rotation 70 and the support means for coupling the body 40 to the resilient movement to both side walls 162 of the recording sheet seating portion 16 .

Description

Facsimile recording paper tension control device using fluid resistance

1 is a side cross-sectional view of a facsimile schematically showing a recording sheet discharge state according to the prior art.

2 is a principal perspective view of a facsimile showing a damper according to the present invention.

3 is an exploded perspective view of the damper according to the present invention.

4 is a plan sectional view showing the assembled state of the damper according to the present invention.

5 is another embodiment of the support means for supporting the recording paper damper according to the present invention.

* Explanation of symbols for main parts of the drawings

40: body 41: fluid chamber

42: coupling portion 421: male thread

44: screw hole 46, 66: rotary shaft hole

48: flange 50: rotating body

52: taper portion 56: nut portion

60: cap 601: female thread

62: step 64: packing

70: rotation axis 72: wing

74: bolt portion 76: groove

80, 166: screw 82: head

86: thread portion 84: sliding shaft portion

88: spring 90: bush

92: bush groove portion 162: side wall

164: elastic piece

The present invention relates to a facsimile recording paper tension control device using a resistance of the fluid, and more specifically, on both sides of the recording paper seating portion on which the recording paper is mounted, the damper to support both sides of the recording paper to rotate the material, the damper is Facsimile recording paper tension control using the resistance of the fluid to reliably unfold the recording paper discharged through the anti-curl device by receiving the resistance of the fluid inversely proportional to the rotational speed of the recording paper. Relates to a device.

In general, a facsimile is a device that electrically transmits and receives texts, pictures, and photographs on a page, and includes a transmitter including a CIS (Contact Image Senser) 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 entrance of the transmitter, the CIS roller transfers it to the CIS, and the CIS recognizes the original content and converts it into an electrical signal. The thermal recording paper is supplied to the TPH, which records the transmitted electrical signals as text, pictures, and photographs on the recording paper.

Since TPH is developed by applying heat to the recording surface according to the transmitted signal at the time of output, general paper cannot be used, and only specially processed thermal recording is used.

Therefore, the facsimile is provided with a recording sheet mounting portion for embedding the thermal recording sheet, and the recording sheet is stored in a roll state.

However, the recording paper in which the recording paper seat is kept in a roll state has the property of being curled even after being discharged by the platen roller according to the output signal, so that the discharged recording paper is curled, which is difficult to clean up, and the printed contents The reading was quite inconvenient. Therefore, it is necessary to straighten out the recording surface so that the receiver does not roll up the recording surface directly output one by one, so the work is quite cumbersome.

In order to prevent the curling of the output paper, the device presses and unfolds the recording paper on the facsimile itself (hereinafter referred to as an anti-curl device). The curling phenomenon was prevented, which is shown in Fig. 1. (For the purpose of understanding, the paper is classified and rolled up to be understood as the recording paper, and it is called the recording surface to be released from the recording paper.)

1 is a side cross-sectional view of a facsimile schematically illustrating the structure of an anti-cal device according to the prior art, reference numeral 11 denotes a facsimile as a control panel in which a keyboard, a printed circuit board, a cover, and the like are assembled to form an assembly. It has a structure that is opened and closed at the top of, the lower body 10 of the control panel 11 has a recording paper seating portion 16, the recording paper 20 is seated, the control panel 10 is closed to the main body 10 In the state, there is a gap between the main body 10 and the control panel 10 at a predetermined interval through which the recording surface 20a passes. Further, reference numeral 17 denotes a TPH which is developed by applying heat to the recording surface 20a supplied and installed at the lower end of the control panel 10 in accordance with the output signal, and 18 denotes the TPH 17 of the recording surface 20a. It is a platen roller to feed with.

The recording paper seating portion 16 is formed to be horizontally long in the lower portion of the control panel 10, and has a concave structure so that the recording paper 20 in a roll state is easily rotated inside. In addition, the V-shaped anti-curve groove 19a is formed at the position between the recording paper seating portion 16 and the TPH 17, and in the form of the anti-curve groove 19a in the lower portion of the control panel 11 facing this. The anti-curve plate 19b of the bent structure is fixed horizontally. At this time, the anti-curve plate 19b and the anti-curve groove portion 19a are spaced apart from each other so that the recording surface 20a can pass.

When installing the recording paper 20 in such a facsimile, the recording paper 20 is seated on the recording paper seating portion 16, and then the front end of the recording paper 20 is pulled to at least the position of the platen roller 18 and the control panel 10 ) So that the front end surface of the recording surface 20a is sandwiched between the TPH 17 and the platen roller 18.

In this state, when a message is received from the outside, the platen roller 18 operates to transfer the recording surface 20a, and the TPH 17 records the message on the recording surface 20a according to the output signal. When (18) pulls the recording surface 20a seated on the recording paper seating portion 16, the recording paper 20 is slowly released while rotating in the recording paper seating portion 16. On the other hand, the recording paper 20 is wound while passing toward the TPH (17) while passing through the V-shaped anti-curve groove 19a, the bending of the anti-curve plate 19b located on the upper portion of the anti-curve groove (19a). Passed while bending along the shape, the recording surface 20a, which is discharged with the property of being rolled in a roll state, is unfolded by the anti-curve plate 19b. At this time, in order to reliably straighten the recording surface 20a, the discharged recording surface 20a passes through the anti-curve groove portion 19a with a constant tension to receive the proper contact resistance to the anti-curve plate 19b. It can be straightened out. In more detail, the factors that restore the curling phenomenon of the recording surface 20a to a horizontal state can be largely divided into two. First, the direction in which the recording surface 20a is changed when passing through the anti-curve groove 19a. The switching angle α, and secondly, the recording surface which passes through the anti-curve plate 19b while pressing the recording surface 20a at a certain pressure when the recording surface 20a passes through the anti-curve groove 19a. (20a). At this time, when the recording surface 20a is pulled tautly, the anti-curve plate 19b is firmly pressed by the recording surface 20a, and thus depends on the tension of the recording surface 20a.

By the way, the turning angle [alpha] can be sufficiently compensated by mechanical structural changes, but the tension is often changed in accordance with the change in the weight of the recording paper. In addition, since the tension decreases as the weight of the recording paper decreases as the recording paper is consumed, the anti-calor effect of the recording surface 20a passing through the anti-curl device is gradually reduced.

However, in the related art, the recording sheet seating portion 16 simply forms a concave groove, so that the recording sheet is simply structured to hold the recording sheet. The anti-collar device that has a structure that is released while being rubbed with the floor, and flattening the recording surface 20a released from the recording sheet mounting portion 16 does not respond properly to the tension change of the recording sheet 20. It had a passive structure in simple bending form. Therefore, when the recording paper 20 is wound in a large amount, the frictional resistance with the bottom of the recording paper seating portion 16 is moderately acted on by the weight of the recording paper 20 so that the recording paper 20 is not easily released. Although it occurs, the tension of the recording surface 20a is gradually weakened by falling in frictional resistance with the recording paper seating portion 16 in proportion to the decrease in the weight as the recording paper 20 is consumed, thereby spreading the recording surface 20a. Will fall.

In particular, in the case of the recording paper 20, which is gradually consumed as the recording paper 20 in a rolled state, the recording paper 20 is wound with a small radius, so that the drying property becomes larger. Even if it passes through, there is a tendency that the curling phenomenon occurs more and more severely.

Therefore, the present invention was created to solve the conventional closed end as described above, and the fluid chamber filled with fluid by installing a damper so that the recording paper is rotated inside the recording bin and a plurality of wings are installed on the axis of the damper. By rotating the damper in the interior of the damper is subjected to the resistance of the fluid inversely proportional to the rotational speed of the recording paper so that the recording surface is passed through the anti-curl device with a suitable tension so that the discharged recording surface can be effectively spread. There is a purpose.

In order to achieve the above object, the present invention provides a damper structure for rotatably supporting recording paper on both side walls of a recording paper seat, wherein a fluid chamber filled with a fluid is formed therein and a flange is provided at both sides, and the body. It is rotatably installed through the fluid chamber of the, the outer periphery located inside the fluid chamber is coupled to the end of the rotary shaft having a rotary shaft in the radial shape and a tapered portion in the direction in which the recording paper is fitted Rotating body and the support means for coupling the body to the resilient movement to both side walls of the recording sheet mounting portion.

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

2 is a partial perspective view of a facsimile showing the fluid damper according to the present invention, FIG. 3 is an exploded perspective view of the fluid damper according to the present invention, and FIG. 4 is a plan sectional view showing the assembled state of the fluid damper according to the present invention. 5 is another embodiment of the support means for supporting the recording paper damper according to the present invention.

Referring to FIG. 2, reference numeral 16 denotes a recording paper seat having a U-shaped cross section formed on the main body which is opened and closed by the control panel 11, and the reference numeral 17 denotes a TPH and 18 a platen. It is a roller.

A damper is inserted into both sides of the recording paper 20 on both side walls 162 of the recording paper mounting portion 16 so that the recording paper 20 is rotated. The damper includes a fluid chamber 41 in which fluid is filled. The body 40 having a) is configured to move elastically laterally to the recording sheet mounting portion 16 by the support means, the rotating shaft 70 is rotatably installed through the center of the body 40, the rotating shaft ( At the end of the 70, the rotating body 50 fitted to both sides of the recording paper 20 is screwed.

As shown in FIG. 3 and FIG. 4, the body 40 has a flange 48 having threaded holes 44 formed at both sides thereof, and a male screw portion 421 formed on an outer circumference of a surface on which the recording paper 20 is installed. Cap 60 having a cylindrical coupling portion 42 formed therein and an internal thread 601 which is externally screwed to the inner diameter front end of the coupling portion 42, and a stepped portion 62 formed at an inner diameter at which the female screw 601 starts. ) Is coupled to form a fluid chamber (41) therein, the packing 64 is interposed between the end of the coupling portion 42 and the stepped portion 62 of the cap 60 to seal the fluid filled therein so as not to leak (64) In the center of the body 40, the rotating shaft holes 46, 66 to which the rotating shaft 70 is fitted are drilled, and the body 40 on both side walls 162 of the recording sheet seating portion 16 is formed. The bushing groove portion 92 having a diameter slightly larger than that of the rotary shaft hole 46 is formed in the rotary shaft hole 46 formed in the shaft.

In addition, the rotary shaft 70 is fitted into the rotary shaft 70, the holes 46, 66 are bored in the center of the body 40, the rotary blade 72 around the rotary shaft 70 located in the fluid chamber 41 Is provided with a plurality of grooves are formed in the shaft end portion located in the bush groove 92 through the body 40, the groove 76 is formed so that the rotating shaft 70 is easy to rotate without falling out of the body 40 bush 90 is fitted, and a bolt portion 74 is formed at the other end thereof, and the rotating body 50 fitted into the cylindrical bead 22 inside the recording paper 20 is screwed. At this time, the bush 90 has a locking projection 93 formed at the inner circumference thereof and is caught by the groove 76 of the rotation shaft 70.

The rotating body 50 has a nut portion 56 coupled to the bolt portion 74 of the rotating shaft 70 in the center, the outer circumference so that the cylindrical bead 22 of the recording paper 20 is easy to fit and The tapered portion 52 is provided so that the cylindrical bead 22 can be fitted regardless of the inner diameter.

In addition, the support means has a sliding shaft portion 84 from the screw head 82 to a predetermined portion and a screw 80 having a screw portion 86 formed at an end thereof is screwed to the side wall 162 through the flange 48. On the outer circumference of each of the screws 80, a spring 88 holding the flange 48 is elastically installed.

Looking at the effect of the present invention made of a structure as described above are as follows.

First, one side of the cylindrical bead 22 installed in the recording paper 20 is inserted into the rotating body 50 of the damper and pushed toward the side wall 162, and a part of the tapered part 52 of the rotating body 50 is cylindrical. It is inserted into the inside of the bead 22, the fitting is, both sides of the flange 48 of the body 40 is moved toward the side wall 162 by the sliding shaft portion 84 of the screw 80. At this time, the spring 88 elastically installed on the outer circumference of the screw 80 is compressed. Then, the other end of the cylindrical bead 22 of the recording paper 20 is inserted into the rotating body 50 of the opposite dam pump, and when the holding recording paper 20 is released, the spring is compressed by the flange 48 of the body 40. An 88 pushes the damper to elastically support the recording paper 20 between the two dampers, and the recording paper 20 is rotated back and forth by the rotating body 50.

In this state, when the facsimile discharges the recording paper 20 to output according to the received signal, the recording paper 20 is rotated in the recording paper mounting portion 16 while being released, both sides of the cylindrical bead 22 The rotating body 50 fitted in the screw is coupled to the rotating shaft 70 rotatably fitted in the rotating shaft holes 46 and 66 of the body 40, and thus rotates together with the rotating shaft 70 and rotates the rotating shaft 70. ) Rotates the blade 72 installed in the fluid chamber 41, the blade 72 is rotated in the fluid of the fluid chamber 41.

The fluid acts as a small resistance to the rotation of the blade 72 below a certain speed, but when the fluid exceeds a certain speed, the fluid acts as a large resistance due to the viscosity of the fluid, so that the blade 72 does not rotate well.

Due to this characteristic, when the amount of winding of the recording paper 20 inserted into the damper is large, the radius of rotation increases, so that the recording paper 20 rotates slowly. Therefore, the blade 72 attached to the rotating shaft 70 is rotated in the fluid chamber 41, but because the rotation is not so fast, the resistance of the fluid is small and released to the recording paper 20, which is suitable for the recording paper 20 with the resistance according to the weight of the recording paper. Act as tension.

On the other hand, when the amount of the recording paper 20 wound up as the recording paper 20 is consumed is small, since the rotation radius of the recording paper 20 is small, the platen roller 18 rotates even when the recording paper 20 is pulled at a constant rotation. This is done quickly.

Therefore, the blade 72 inside the fluid chamber 41 is rotated slowly because it receives a lot of resistance by the fluid, which also acts as a greater resistance to the unwinding of the recording paper 20 than when the amount of winding of the recording paper 20 is large. do. This resistance becomes a suitable tension on the recording paper 20 wound around the smaller rotation radius, because the weight is reduced by the consumption of the recording paper is reduced by the weight, the recording paper 20 is to be wound as much as the rotation radius is reduced This is because it has more properties, so when it passes through the anti-curl device, it needs to be given more tension to be flattened, so a large tension is needed depending on the radius of rotation.

Therefore, increasing the tension of the recording sheet 20a in inverse proportion to the winding amount of the recording sheet 20 acts as a suitable tension to flatten the recording sheet 20a.

In addition, Figure 5 is another embodiment of the support means for supporting the recording paper damper according to the present invention, the support means is an elastic piece 164 formed by cutting the side wall 162 of the recording paper seating portion 16 in the U-shape It is provided with a simple structure that is fixed to the body 40. At this time, the coupling of the body 40 is in contact with the flange 48 to the elastic piece 164 and then fixed with a screw 166. The support means having such a structure inserts one cylindrical bead 22 of the recording paper 20 into the tapered portion 52 of the rotating body 50 and pushes it toward the side wall 162 so that the elastic piece 164 has its own elastic force. It is elastically moved to the rear side by inserting the rotary body 50 formed on the other end of the recording paper 20, and then release the hand was pushing the recording paper 20 to return to its original position by its own elastic force to the recording paper 20 Elastic support. The embodiment of such a structure makes it possible to effectively hold the recording sheet with a simple structure.

As described above, the present invention fills a fluid in the fluid chamber, and installs a blade that rotates with the rotating shaft in the fluid chamber to receive a resistance that is inversely proportional to the speed of rotation that increases as the recording paper is consumed. Accordingly, it is possible to properly adjust the tension of the recording paper passing through the anti-calor device, thereby reliably spreading the output recording paper.

Claims (6)

In the damper structure for rotatably supporting the recording paper 20 on both side walls 162 of the recording paper seating portion 16, a fluid chamber 41 filled with a fluid is formed therein, and flanges 48 are provided on both sides thereof. Rotating shaft 70 is provided with a body 40, rotatably installed through the fluid chamber of the body 40, the rotary blade 72 is formed on the outer circumference of the fluid chamber 41 in the radial shape And a rotating body 50 having a tapered portion 52 tapered in the direction in which the recording paper 20 is fitted, coupled to an end of the rotating shaft 70, and the body 40. 16. The facsimile recording paper tension control device using the resistance of the fluid, characterized in that the support means for elastically movable coupled to both side walls (162) of the 16. The cylindrical body of claim 1, wherein a flange 48 having a threaded hole 44 is formed at both sides of the body 40, and a male screw portion 421 is formed at an outer circumference of a surface of the recording paper 20. Cap 60 having a coupling portion 42 of the upper portion and a female screw 601 screwed to the outer circumference of the coupling portion 42 at the inner diameter leading end and the stepped portion 62 is formed at the inner diameter at which the female screw 601 starts. Coupled to form a fluid chamber 41 therein, the packing 64 is provided at the end of the coupling portion 42 and the stepped portion 62 of the cap 60 to seal the fluid filled therein so as not to leak And a rotation shaft hole (46) (66) into which the rotating shaft (70) is fitted as a center of the body, wherein the facsimile recording paper tension control device using the resistance of the fluid. According to claim 1, The rotary shaft 70 is fitted into the rotary shaft hole 46, 66 which is drilled in the center of the body 40, a plurality of rotations around the rotary shaft 70 located in the fluid chamber 41 A blade 72 is formed, and a groove 76 is formed at the shaft end portion of the bush groove portion 92 passing through the body 40 so that the rotation shaft 70 is easily rotated without being pulled out of the body 40. Bush 90 is fitted, the other end of the recording paper tension control device of the facsimile using the resistance of the fluid, characterized in that the bolt portion 74 is formed. According to claim 1, wherein the rotating body 50 is formed in the center of the nut portion 56 is coupled to the bolt portion 74 of the rotating shaft 70, the outer periphery of the cylindrical bead 22 of the recording paper 20 The tape recording device tension control device using the resistance of the fluid, characterized in that the tapered portion 52 is formed so that it is easy to fit and can be fitted regardless of the inner diameter of the cylindrical bead (22). The side wall 162 of claim 1, wherein the support means has a sliding shaft portion 84 from the screw head 82 to a predetermined portion, and a screw 80 having a screw portion 85 formed at an end thereof passes through the flange 48. Screw fixed to, the facsimile recording paper tension control device using a resistance of the fluid, characterized in that the spring (88) for holding the flange 48 is installed on the outer periphery of each of the screws (80). According to claim 1 or 5, wherein the support means is provided with an elastic piece 164 formed by cutting the side wall 162 of the recording paper seating portion 16 in the U-shape to fix the body 40 to this A facsimile recording paper tension control device using a fluid resistance.