JPH08122106A - Mechanism for feeding recording paper of recorder - Google Patents

Abstract

PURPOSE: To provide a mechanism to feed a recording paper of recorder that permits manpower saving for setting a recording paper. CONSTITUTION: A displaceable pulley 2 and another pulley 3 are arranged in a feeding route for recording paper W and a timing belt 4 having sprocket teeth is attached on both pulleys 2 and 3, further a pulley displacing means consisting of a shaft 6, coil spring 7 and solenoid 8 and a roller displacing means that consist of a lever 9 and fulcrum 10 for displacing a displaceable roller 11 are provided, and a recording paper sensor 12 for detecting the presence or absence of the paper W and a sprocket hole sensor 13 for detecting a sprocket hole of the paper W are positioned therein. When the paper W is inserted into a recording paper loading part 1a, it is fed to the pulley 2 by the roller 11, and the sprocket teeth of the timing belt 4 are engaged with the sprocket holes, then the paper W is fed to the designated position by the belt 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording paper feed mechanism of a recorder for automatically setting recording paper.

[0002]

2. Description of the Related Art Generally, a recording meter is equipped with a recording paper feed mechanism for moving the recording paper at a constant speed. FIG. 5 shows a main part of a recording paper feeding mechanism of a recorder according to a conventional example. The recording paper feeding mechanism includes a recording paper storage unit 30 for storing recorded recording paper (not shown), a recording paper guide plate 31 for guiding the recording paper, and a recording paper sprocket on the recording paper guide plate 31. A sprocket wheel 32 having sprocket teeth that engage with the holes, and a recording paper retainer 3 that presses the recording paper delivered to the recording paper storage unit 30 by the sprocket wheel 32.
3 and 3. A recording pen 34 is arranged near the recording paper supply side of the recording paper guide plate 31.

In such a recording paper feeding mechanism, after inserting the recording paper into the recording paper loading portion (not shown) of the recorder, the recording paper is manually pulled out, and the sprocket holes of the sprocket wheel 32 are sprocket holes of the recording paper. The recording paper is set by hooking it on the teeth and pressing the recording paper retainer 33 so that the recording paper does not come off the sprocket wheel 32.

[0004]

However, in the recording paper feeding mechanism as described above, a series of operations such as pulling out the recording paper, hooking the sprocket holes of the recording paper to the sprocket teeth, and pressing the recording paper by pressing the recording paper is performed. Since all the work has to be done manually, there is a problem that setting of the recording paper is very troublesome.

SUMMARY OF THE INVENTION Therefore, in view of the above problems, an object of the present invention is to provide a recording paper feeding mechanism of a recording meter which can save labor in setting the recording paper.

[0006]

In order to achieve the above object, a recording paper feeding mechanism of a recorder of the present invention comprises a displaceable first pulley rotatably arranged in a recording paper feeding path, A second pulley rotatably arranged at a distance from the first pulley; a belt stretched between the pulleys and having feed teeth for engaging with a feed hole of the recording paper; Pulley displacing means for displacing the pulley in the advancing / retreating direction with respect to the recording paper feed path, a displaceable roller rotatably arranged on the downstream side of the recording paper feed path from the first pulley, and this roller for feeding the recording paper feed. Roller displacing means for displacing in the advancing / retreating direction with respect to the path, a recording paper sensor for detecting the presence / absence of recording paper in the recording paper loading section, and a feed hole for detecting a feed hole for the recording paper at the position of the first pulley. Sensor, and the recording paper sensor detects the recording paper. At this time, the roller is brought into contact with the recording paper by the roller displacement means to rotate, the first pulley is retracted from the recording paper feed path by the pulley displacement means, and the feed hole sensor is used for feeding the recording paper. When the hole is detected, the roller is separated from the recording paper by the roller displacement means, and the first pulley is returned to the recording paper feed path by the pulley displacement means.

[0007]

In this recording paper feeding mechanism, when the recording paper is inserted into the recording paper loading section, the recording paper is detected by the recording paper sensor, and at the same time, the roller is brought into contact with the recording paper by the roller displacing means and is rotated. The first pulley is retracted from the recording paper feed path by the pulley displacement means, and the recording paper is sent to the first pulley by the rotating roller. When the recording paper is fed to the position of the first pulley, the feeding hole sensor detects the feeding hole of the recording paper, and at the same time, the roller is separated from the recording paper by the roller displacing means, and at the same time, the first
The pulley is returned to the recording paper feed path by the pulley displacement means,
The feed teeth of the timing belt engage with the feed holes of the recording paper. After that, the recording paper is fed to an appropriate position (at least slightly beyond the position of the recording pen) by the rotation of the pulley, that is, the movement of the timing belt.

Therefore, when the recording paper is inserted into the recording paper loading section, the recording paper is automatically set, so that no troublesome manual work as in the past is required, and labor saving of the setting of the recording paper is performed. Can be planned.

[0009]

EXAMPLES The recording paper feeding mechanism of the recorder according to the present invention will be described below with reference to examples. However, the present invention is characterized by the recording paper feeding mechanism, and other configurations are the same as those of the conventional recorder, and therefore the recording paper feeding mechanism will be mainly described. FIG. 1 is an external perspective view of the main part of the recording paper feeding mechanism according to the embodiment.
FIG. 2 shows a horizontal sectional view of the main part and FIG. 3 shows a vertical sectional view of the main part. This mechanism is arranged in the main body case 1 of the recorder along the feeding path of the recording paper W to be inserted into the recording paper loading section 1a. A pair of first and second pulleys 2, 2 are provided on both end sides of the recording paper guide plate 21 provided on the main body case 1.
3 are rotatably supported, and the rotational driving force of a drive motor (not shown) is transmitted to the pulley 3, for example.

A timing belt 4 with sprocket teeth (feed teeth) is hung on the pulleys 2 and 3. As shown in FIG. 4, the timing belt 4 is provided on one side with sprocket teeth 4a that engage with the sprocket holes (feeding holes) W1 of the recording paper W and on the other side with the peripheral surfaces of the pulleys 2, 3. And another timing tooth 4b that engages a timing pulley tooth (not shown). Further, in order to prevent the slack of the timing belt 4, another pulley 5 is rotatably arranged so as to press the timing belt 4 in the right direction in FIG. As a result, the timing belt 4 always maintains a constant tension.

The rotating shaft of the pulley 2 is supported so as to be displaceable in the direction of arrow A, one end of a shaft 6 is connected to the rotating shaft, and the other end of the shaft 6 has a coil spring 7 fitted therein and a solenoid 8. Has been inserted inside. here,
The shaft 6, the coil spring 7, and the solenoid 8 constitute pulley displacement means. In this pulley displacement means, when the solenoid 8 operates, the shaft 6 moves to the pulley 3 side against the urging force of the coil spring 7 and retracts from the recording paper feed path, and when the operation of the solenoid 8 stops, the shaft 6 moves. The coil spring 7 is set to return to the original position of the recording paper feeding path.

One end of the pulley 2 is connected to the rotary shaft of the pulley 2 so that the lever 9 pivots about a fulcrum 10. A roller 11 connected to a motor (not shown) is rotatably attached to the other end of the lever 9,
The roller 11 is displaced in the arrow B direction by the pivotal movement of the lever 9. Here, the lever 9 and the fulcrum 10 constitute a roller displacement means. In this roller displacement means, the roller 1
When the lever 9 moves due to the displacement of the pulley 2 to the pulley 3 side, 1 contacts the recording paper W and is rotated by a motor,
It is set so that when the lever 9 moves due to the return of the pulley 2 to the original position, the lever 9 separates from the recording paper W and also does not rotate.

On the other hand, a recording paper sensor 12 is arranged near the exit of the recording paper loading section 1a of the main body case 1. The recording paper sensor 12 is for detecting the presence or absence of the recording paper W in the recording paper loading unit 1a.
The solenoid 8 is set to operate when it is inserted into a and detected by the recording paper sensor 12.
A sprocket hole sensor (feed hole sensor) 13 is arranged at a position facing the pulley 2 of the main body case 1. The sprocket hole sensor 13 is for detecting the sprocket hole W1 of the recording paper W. When the sprocket hole W1 is detected, the driving motor of the roller 11 is stopped and the solenoid 8 is demagnetized. It is set.

Incidentally, the above-mentioned feeding mechanism is similar to the conventional one, and a recording paper storage portion 20 for storing the recorded recording paper,
A recording paper guide plate 21 for guiding the recording paper, and a recording paper guide 22 provided along both ends of the recording paper guide plate 21.
And a recording paper presser 23 for pressing the recording paper sent to the recording paper storage unit 20. In the recording paper feeding mechanism configured as described above, the recording paper loading unit 1 of the main body case 1 of the recorder.
When the recording paper W is inserted into a as shown in FIGS. 1 and 2,
The recording paper W is detected by the recording paper sensor 12. Then, as the solenoid 8 is excited and the pulley 2 moves to the pulley 3 side, the lever 9 interlocks around the fulcrum 10, and the roller 11 contacts the recording paper W and rotates.
As a result, the recording paper W is sent toward the pulley 2, and when the leading end of the recording paper W reaches the position of the pulley 2, the sprocket hole W1 of the recording paper W is detected by the sprocket hole sensor 13. Then, at the position where the sprocket hole W1 of the recording paper W coincides with the sprocket teeth 4a of the timing belt 4, the rotation of the roller 11 is stopped, the solenoid 8 is demagnetized, and the pulley 2 is returned to its original position by the coil spring 7. To do. As a result, the sprocket teeth 4a of the timing belt 4 engage with the sprocket holes W1 of the recording paper W.

After that, the recording paper W is recorded with the recording paper guide plate 21 by the movement of the timing belt 4 to an appropriate recording position (at least, a position where the recording paper slightly exceeds the position of the recording pen 24). It is guided and sent by the paper guide 22. Although the pulley 2 and the roller 11 are interlocked by the lever 9 in the above embodiment, the recording sheet sensor 1 has a structure in which the pulley 2 and the roller 11 are operated separately.
When 2 does not detect the recording paper, if a new recording paper is inserted, only the roller 11 contacts the recording paper and rotates,
By setting the recording paper to be fed to the position of the pulley 2, the recording paper sensor 12 can also be used as a paper-out sensor, and continuous recording can be performed without interruption. Further, a function of automatically recognizing the time axis scale of the recording paper may be added.

[0016]

Since the recording paper feeding mechanism of the recorder according to the present invention is constructed as described above, a series of troublesome manual work which has been conventionally performed is not required at all, and the recording paper is automatically set. This has the effect of not only saving labor in setting but also shortening the time required for setting.

[Brief description of drawings]

FIG. 1 is an external perspective view of a main part of a recording paper feeding mechanism of a recorder according to an embodiment.

FIG. 2 is a horizontal sectional view of a main part of the recording paper feeding mechanism according to the embodiment.

FIG. 3 is a vertical sectional view of a main part of the recording paper feeding mechanism according to the embodiment.

FIG. 4 is a partially enlarged perspective view of a timing belt in the recording paper feeding mechanism of the embodiment.

FIG. 5 is an external perspective view of a main part of a recording paper feed mechanism of a recorder according to a conventional example.

[Explanation of Codes] 1a Recording Paper Loading Section 2, 3 First and Second Pulleys 4 Timing Belt 4a Sprocket Tooth 4b Timing Tooth 11 Roller 12 Recording Paper Sensor 13 Sprocket Hole Sensor (Feeding Hole Sensor) W Recording Paper W1 Sprocket Hole (feed hole)

Claims (1)

[Claims] 1. A displaceable first pulley rotatably arranged in a recording paper feed path, a second pulley rotatably arranged at a distance from the first pulley, and a space between both pulleys. A belt having a feed tooth engaged with a feed hole of the recording paper, a pulley displacing means for displacing the first pulley in the advancing / retreating direction with respect to the recording paper feed path, and a first pulley. A displaceable roller rotatably arranged on the downstream side of the recording paper feed path, roller displacement means for displacing the roller in the advancing / retreating direction with respect to the recording paper feed path, and the presence or absence of recording paper in the recording paper loading section are detected. A recording paper sensor and a feed hole sensor for detecting a feed hole of the recording paper at the position of the first pulley are provided, and when the recording paper sensor detects the recording paper, the roller is a roller displacement means. While contacting the recording paper and rotating When the first pulley is retracted from the recording paper feed path by the pulley displacing means and the feed hole sensor detects the feeding hole of the recording paper, the roller is separated from the recording paper by the roller displacing means, and A recording paper feeding mechanism of a recording meter, wherein the first pulley is configured to return to the recording paper feeding path by a pulley displacement means.