JPS61238658A - Recording paper discharging device - Google Patents

Abstract

PURPOSE:To simplify the mechanism and reduce the cost by interlocking the rotary edge shaft of a recording paper cutter of a facsimile or the like and a paper discharge roller shaft and providing an invalid portion corresponding to the rotation angle from the standby position of a rotary edge to the cutting completion. CONSTITUTION:A motor is rotated via a cutting command, a rotary edge 4a is rotated by an angle alpha, and the recording paper 2 is cut, In this case, a discharge roller shaft 8 is rotated at a double speed via a gear train. Therefore,a discharge roller 5 is rotated by an angle beta twice as much as the angle alpha, a notched end 5a reaches a position 5b, and the recording paper 2 starts to be fed to the discharge direction via the friction force of a circular arc section 5c. The distance via the friction force of a circular arc section 5c. The distance L between the cutting position 4b and position 5c is made less than the double length of the circumferential length of the circular arc section 5c, thus the recording paper is discharged. When the rotary edge 4a is rotated once, the motor is stopped via a detection signal and is held at this position by an action of a one-turn control member. Accordingly, the structure is simplified and the cost can be reduced.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a recording paper ejecting device for a facsimile machine or the like.

In a conventional facsimile machine that uses a roll of recording paper, it is necessary to cut the recording paper after receiving and recording and discharge it to a place where it can be easily taken out from outside the machine. Therefore, in the conventional recording paper discharge device, as shown in FIG. 4, the recording paper 2 pulled out from the rolled state by the platen roller 1 is transferred to
The paper passes through the paper vane 4, is fed out in the incoming direction from the paper ejection section consisting of the paper ejection roller 5 and the press plate 6, and then the recording is completed, and when the end point reaches a certain position, the rotary blade of the cutter 4a rotates once and is cut between it and the fixed blade 4b, and after cutting, the recorded side paper edge passes through the paper discharge section and falls onto the table T.

Here, the unrecorded paper edge after the cutting is pulled back to the recording position by the reverse drive of the platen roller 1 in order to remove the leading edge margin for the next recording.

Therefore, the paper ejection roller 6 needs to rotate in a constant direction regardless of whether the platen roller 1 is in the forward or reverse direction, and it is also necessary to perform the paper ejection operation quickly. Alternatively, the drive source may be shared with the platen roller 1, and the transmission system from the platen roller 1 to the paper ejection roller 5 may be provided with a mechanism for normally rotating the paper ejection roller using two one-way rotation clutches. was. (for example,
(Japanese Unexamined Patent Publication No. 57-162875) Problems to be Solved by the Invention However, as mentioned above, it is difficult to use a motor to drive only the third page of the paper ejection roller or to use two one-way rotation clutches. However, there is room for improvement in terms of cost/effectiveness.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a recording paper ejecting device that does not require a dedicated motor and has a simple configuration.

Means for Solving the Problems In order to solve the above-mentioned problems, the recording paper ejecting device of the present invention connects the rotary blade shaft of the cutter and the paper ejection roller shaft by a transmission means, and provides the following features on the outer circumference of the paper ejection roller. The cutter rotary blade is configured to form an ineffective portion for paper ejection corresponding to the rotation angle from the standby position to the end of cutting.

Function: With the above configuration, the present invention can perform cutting and paper ejection during one rotation of the cutter, and therefore requires a dedicated motor for the paper ejection pool and a one-way rotation clutch in the transmission mechanism for driving the paper ejection roller. It can be omitted.

Embodiment FIG. 1 shows a schematic configuration of a facsimile machine to which an embodiment of the present invention is applied, in which 2 is a recording paper, 4 is a cutter consisting of a rotary blade 4a and a fixed blade 4b. 4
a indicates that it is in the standby position. α is the rotation angle of the rotary blade 4a required from the standby position to the recording paper cutting end groove. Reference numeral 6 denotes a paper discharge roller made of sponge rubber fixed to the shaft 8, and the figure shows the standby position. β is rotary blade 4
The paper discharge roller 6 rotates when & is rotated by an angle α, and the notch end 5iL shows the rotation angle from the standby position to the time when it comes into contact with the upper guide member 9 of the recording paper 2 at the position 6b.

The rotational speed ratio of the rotary blade 4a and the paper discharge roller 6 is configured to be 1:2 (described later), and since the required amount of the angle α is 48°, the angle β is 96°. There is still paper ejection roller 6.
The circumferential length of the circular arc portion 6C is the circumferential length x 2>L with respect to the distance between the cutting position 4C and the position 5b. 10 is recording paper 2
This is the lower guide member.

FIG. 2 is a plan view of the main part of FIG. 1, in which an input gear 11 is attached to the left shaft of the rotary blade 4a via a six-page rotary clutch 12 on one side. Rotary blade 4
& is designed to be driven by the reverse rotation of a drive motor for a transmission thread (not shown), and when the drive motor rotates forward in the normal direction during transmission, the gear 11 idles on the axis of the rotary blade 4a. The gear train 13 doubles the rotation speed of the rotary blade shaft 4a and transmits it to the shaft 8 of the paper discharge roller 5, and the shaft 8 is rotatably supported by a bearing 16 attached to the chassis 14. Rotary blade 4&
A one-rotation control member 16 equipped with a sulin) 162L is fixed to the right-hand shaft of the chassis 14 (see also FIG. sensor 1
7, and a spring 18 for pressing the recess 16b of the one-rotation control member 16 and maintaining the rotary blade 4a in the standby position is fixed to the bracket 19.

Next, the operation will be explained.

In FIGS. 1, 2, and 3, when recording is completed, cutter drive is input from the gear 11 in response to a cutting command from a control unit (not shown), and the rotary blade 41L.

The paper ejection roller 5 starts rotating. Rotary blade 41L is at angle α
When it rotates, the recording paper 2 is cut, and at this point, the cutout end 6a of the paper ejection roller 6 has reached the position 6b, so the frictional force of the circular arc portion 6C causes the cut recording paper 2 to be moved by the guide member 9. It is sent in the discharge direction while sliding against the bottom surface. When the rotary blade 4a rotates once, the sleeve of the rotation control member 16)
16a is detected by the sensor 17, and this detection signal causes the drive motor of the rotary blade 4a to stop, and at the same time, the spring 18 locks the recess 16b, so that it is maintained in its original position. On the other hand, since the paper ejecting roller 5 rotates twice during one rotation of the rotary blade 4a, the recording paper 2 is ejected as shown in FIG.

Effects of the Invention As described above, the present invention works in conjunction with the rotation of the rotary blade of a cutter, and after rotating the rotary blade through an angle corresponding to the rotation angle from the standby position to the end of cutting, applies a feeding force to the recording paper. By providing a recording paper ejecting roller with an outer circumference formed as shown in FIG. 7, the recording paper can be cut and ejected during one rotation of the rotary blade. It is possible to provide an inexpensive device.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a facsimile machine to which a recording paper ejection device according to an embodiment of the present invention is applied, FIG. 2 is a plan view of the main parts in FIG. 1, and FIG. 4 is a schematic configuration diagram of a conventional example. 2... Recording paper, 4... Cutter, 4a.
...Rotating blade, 4b...Fixed blade, 6...
... Paper ejection roller, 5+L ... Notch end, 8.
...Axis, 11...Gear, 13...
・Gear train, 16...1 rotation control member, 17...
...sensor, 18...spring.

Claims (1)

[Claims] Recording whose outer periphery is formed in such a way that, in conjunction with the rotation of the rotary blade of a recording paper cutter, the rotary blade rotates through an angle corresponding to the rotation angle required from the standby position to the end of cutting, and then applies a feeding force to the recording paper. A recording paper ejecting device equipped with a paper ejecting roller.