KR940011387B1 - Driving device for fax - Google Patents

Abstract

The facsimile driving device simplifys a construction of a paper outputting driver. The device is formed by the paper outputting driver having a construction that: a source gear is connected to a transferring part; a driven gear engaged with the source gear, for transferring power; a source timing pulley set to the same shaft in one body with the source gear, for receving rotating power; a driven timing pulley set to the same shaft as the driven gear; a power connecting unit set between the source timing pulley and the driven timing pulley; and one direction power transferring units situated inside of driven gear and driven timing pulley.

Description

Fax drive

1 and 2 are configuration diagrams of a conventional facsimile drive device.

3 is an overall configuration diagram of the present invention.

4 is a view illustrating an embodiment of a discharge unit.

Figure 5 is another embodiment of the discharge drive.

* Explanation of symbols for main parts of the drawings

100: paper roll 200: thermal head (TPH)

300: platen roller 400: cutter

500: power source gear 600: discharge drive

700: transmission unit 800: platen roller gear

900: improved discharge drive unit 1: the driving gear

2: driven gear 3: coaxial transmission gear

4 and 5: reverse transmission gear 6: distance between shafts

7: support shaft 8: discharge roller shaft

21: driven timing pulley 22: driven timing pulley

23: timing belt 24, 24 ', 25, 25': one-way clutch

The present invention relates to a facsimile drive device, and more particularly, to a facsimile drive device having a simple configuration of a discharge drive part.

Looking at the prior art related to the present invention with reference to Figures 1 and 2 as follows.

1 is a configuration diagram according to an embodiment of the prior art, Figure 2 is a configuration diagram according to another embodiment of the prior art, 100 is a paper roll, 200 is a thermal head (TPH), 300 is a platen roller , 400 is a cutter, 500 is a power source gear, 600 and 600 'are a discharge drive part, 700 is a transmission part, and 800 is a platen roller gear.

Looking at the operation according to the configuration of Figure 1, after the printing of the image on the paper is finished until the delivery of the paper from the cutter 400, the rear end of the printed paper should be forwarded out of the discharge roller and discharged, the end of the unprinted paper It must be back-fed up to the heat head 200. Accordingly, the paper must be transported forward to discharge the printed paper means out of the discharge roller, and then the leading edge of the unprinted paper must be retracted to the heat head position.

Looking at the operation according to the configuration of Figure 2, the one-way mounted inside the discharge roller and when the printing and cutting of the paper is completed immediately back the paper to match the leading edge of the unprinted paper in the thermal head 200, the printed The paper is stopped without being conveyed because the discharge roller does not rotate by the one-way clutch operation of the discharge roller. If the paper is not ejected, it will be ejected by the forward rotation of the rollers when printing of the next paper is started. The problem with this case is that the last sheet is not ejected. do.

As a result, according to the prior art shown in FIG. 1, there is a problem that the operation time of the underbody becomes long, and in the case of FIG. 2, there is a problem that the processing of the last chapter becomes difficult.

Accordingly, the present invention devised to solve the above problems of the prior art, provides a facsimile drive device having a rapid processing time of the paper provided with a discharge unit that rotates in a predetermined direction irrespective of the rotation direction of the driving side, which is a power transmission axis. There is a purpose.

In order to achieve the above object, the present invention provides a paper roll 100 for providing a paper for printing a received image, a thermal head 200 for printing a received image on a paper of the paper roll 100, and the thermal head. A platen roller 300 installed below the sheet 200 to closely adhere the paper to the thermal head 200, a transfer unit 700 connected to the platen roller 300 to transmit power, and the transfer unit In the facsimile drive device including a power source gear 500 is connected to the 700 to provide a rotational power, the drive gear is installed to be connected to the transmission unit 700, and is engaged with the drive gear to receive power A driven gear, a driven timing pulley integrated with the driven gear to receive rotational power, a driven timing pulley installed on the same axis as the driven gear, and between the driven timing pulley and the driven timing pulley, the driven tie And a discharge driving unit including power connection means for transmitting a rotational force of the pulley to the driven timing pulley, and one-way power transmission means for switching the power transmission path to the shaft, respectively, embedded in the driven gear and the driven timing pulley. It is done. In addition, as another embodiment of the discharge drive unit is configured by setting the one-way power transmission means in the different driving direction in the prime move gear and prime move timing pulley.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG.

3 is an overall configuration diagram of a facsimile drive device according to the present invention, in which 900 is a discharge drive unit having a constant rotational direction of the driven shaft irrespective of the rotational direction of the driving side (hereinafter referred to as 'improved discharge drive unit') Indicates.

The facsimile drive device according to the present invention includes a discharge drive unit 900 having a constant rotational direction on the driven side irrespective of the rotational direction, so that the processing time of the printed container becomes faster than the conventional drive device.

That is, the power is transmitted to the transmission gear 700 by the power source gear 500, the platen roller gear 800 and the discharge drive unit 900 is coupled to the transmission gear 700 to be engaged together, the printed paper The operation of cutting after discharging and setting the front end of the remaining unprinted paper in the thermal head 200 proceeds simultaneously. In other words, as the platen roller gear 800 needs to be rotated in reverse, even if the power source gear 500 is rotated in reverse, the rotation of the discharge driver 900 always discharges a predetermined direction, that is, printed paper to the outside of the facsimile apparatus. By acting only in the direction to make, two operations according to the paper processing is made at the same time.

4 is a configuration diagram of an embodiment of the improved discharge drive unit 900 according to the present invention, the fourth (a) is a front view, the fourth (b) is a plan perspective view. In the figure, 21 denotes a prime timing pulley, 22 denotes a driven timing pulley, 23 denotes a power connection means (timing belt), and 24 and 24 'denote one-way clutches.

As shown in the drawings, one embodiment of the discharge drive unit according to the present invention, the support shaft 7 and the discharge roller shaft 8, and the driving gear fitted to the support shaft 7 provided while maintaining a constant interaxial distance ( 1), a driven gear 2 fitted to the discharge roller shaft 8 and engaged with the motive gear 9 to transmit the power of the transmission unit 700 to the discharge roller shaft 8, and the transmission The driven timing pulley 21 and the driven timing pulley 22 provided on the support shaft 7 and the discharge roller shaft 8 of the unit 700, respectively, and the driven timing pulley 21 and the driven timing pulley 22, respectively. And a one-way clutch (24, 24 ') built into the driven gear (2) and the driven timing pulley (22).

Here, the one-way clutches 24 and 24 'built in the driven gear 2 and the driven timing pulley 22 are provided only when the driven gear 2 and the driven timing pulley 22 rotate in the direction' A 'in the drawing. (Only when rotating in the direction of discharging the paper) is installed to transmit the rotational force to the discharge roller shaft (8). That is, the operating / non-operating conditions for the rotational direction are the same.

Looking at the operation of one embodiment of the medium drive unit according to the present invention configured as described above are as follows.

First, when the discharge roller shaft 8 should always rotate in the direction of discharging the paper (A direction in the drawing), the discharge roller shaft 8 according to the rotational direction of the primary gear 1 and the prime timing pulley 21 is rotated. Let's look at the process of power transfer to).

When the transmission unit 700 rotates in the counterclockwise direction, the prime mover gear 1 rotates clockwise (B direction in the drawing), and the driven gear 2 that is engaged with the prime mover gear 1 and rotates counterclockwise. Rotation force in the counterclockwise direction is transmitted to the discharge roller shaft (8) through the one-way clutch (24). In addition, since the driven timing pulley 21 also rotates clockwise, it transmits a clockwise rotational force to the driven timing pulley 22 through the timing belt 23, and the driven timing pulley 22 rotates clockwise so that the built-in timing pulley 21 rotates clockwise. The one-way clutch 24 'is turned away.

On the other hand, when the transmission part 700 rotates in the clockwise direction, the prime mover gear 1 rotates in the counterclockwise direction, and this counterclockwise rotational force is not transmitted to the discharge roller shaft 8, but to the prime mover timing pulley 21. Only the rotational force is transmitted to the discharge roller shaft 8 so that the discharge roller shaft 8 rotates in a counterclockwise direction.

As a result, no matter what the direction of rotation of the delivery unit 700, the rotational force of a certain direction is always transmitted to the discharge roller shaft (8).

On the other hand, an embodiment of the discharge drive unit according to the present invention even if the idle gear is engaged with the driven timing pulley 21 and the driven timing pulley 22 in place of the timing belt 23. The same effect as that can be obtained.

That is, another embodiment in which the power connecting means 23 is configured as the idle gear is as shown in FIG.

Therefore, the present invention including the improved discharge drive unit 900 configured as described above can proceed simultaneously with the paper arrangement and the paper discharge operation has the effect of improving the overall performance as the operation time is reduced.

Claims (5)

A paper roll 100 for providing paper for printing a received image, a thermal head 200 for printing a received image on the paper of the paper roll 100, and a lower portion of the thermal head 200 to install the paper. Platen roller 300 to be in close contact with the thermal head 200, the plate roller gear 800 is connected to the platen roller 300 connected to the transmission unit 700 for transmitting power, and the transmission unit 700 In the facsimile drive device including a power source gear 500 that is connected to the rotational force to provide a rotational power, the drive gear (1) is installed to be connected to the transmission unit 700, and is engaged with the drive gear (1) The driven gear (2) receiving power, the prime mover timing pulley (21) installed on the same shaft integrally with the motive gear (1) and receiving the rotational power, and the same as the driven gear (2) A driven timing pulley 22, the driven timing pulley 21 and a driven timing pulley 22 Is installed between the power connecting means 23 for transmitting the rotational force of the driven timing pulley 21 to the driven timing pulley 22, and the driven gear 2 and the driven timing pulley 22, respectively (8) A facsimile drive device, characterized in that the discharge drive unit (900) is constituted by one-way power transmission means (24, 24 ') for switching the power transmission path to the shaft. 2. A facsimile drive device according to claim 1, wherein the one-way power transmission means (24, 24 ') is constituted by a one-way clutch. 2. A facsimile drive device according to claim 1, wherein the one-way power transmission means (24, 24 ') are installed under the same rotational direction as operating / non-operating conditions. 2. The facsimile drive device according to claim 1, wherein the power connection means is constituted by a timing belt. 2. The facsimile drive device according to claim 1, wherein the power connecting means is constituted by an idle gear.