JP2842838B2 - Recorder for electrocardiograph - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recorder used for an electrocardiograph, and more particularly to a recorder used for an electrocardiograph for recording on continuous recording paper by perforations.

[0002]

2. Description of the Related Art FIG. 2 is a front view showing an example of a conventional recorder for an electrocardiograph.

[0003] Among recording devices (recorders) used for electrocardiographs, a conventional recorder used for an electrocardiograph that records on a continuous recording paper, especially perforated, is shown in FIG. Recording paper 1 folded and loaded in
Is guided between the platen roller 14 and the thermal head 2 through the guide roller 18 and the guide plate 20, and the platen roller 14 is
By rotating the printhead 9 in the direction of arrow A through the heating head 9, recording is performed on the recording paper 1 by the heating element 3 provided on the thermal head 2 and facing the platen roller 14.

When a series of recording is completed, the recording paper 1 is continuously transported in the direction of arrow C and stopped until the perforation 1a immediately after the recorded portion reaches the position of the paper cutter 6, and the paper cutter 6 is operated. Separate the recorded part.

At this time, since there is a considerable distance between the paper cutter 6 and the heating element 3, if the operation is continued in this state, the next recording start position is shifted backward from the predetermined position. Therefore, since the next recording is not completed before the next perforation 1b but is recorded to the portion after the perforation 1b, when cutting at the perforation 1b, a part of the recording is lost.

In order to prevent this, in the conventional recorder for an electrocardiograph, after a series of recording is completed, the recording is cut at the perforation 1a, and a predetermined position of the page after the perforation 1b is set to the next heating element 3.
Then, the next portion is conveyed in a non-recording state by a fixed amount until the next position is reached, and then the next recording is started.

[0007]

As described above, in the conventional electrocardiograph recorder, when a series of recordings is completed and cut at a perforation to start the next recording, the recording start position is set to a fixed position. In order to achieve this, it is necessary to convey a predetermined amount in a non-recording state, so that there is a problem that one page is wasted.

[0008]

A recorder for an electrocardiograph according to the present invention is provided with a thermal head having a heating element for recording by heating a continuous recording sheet at a perforation, and provided opposite to the heating element. A platen roller holding the recording paper between the thermal head and rotatable in both forward and reverse directions, a paper cutter provided in front of the platen roller for cutting the recording paper, and rotation of the platen roller in both forward and reverse directions And a motor for driving the recording paper, after recording on the recording paper by the thermal head and cutting from the perforation position by the paper cutter,
Rotating the platen roller in the reverse direction and pulling back the recording paper until a predetermined position of the first page after cutting the recording paper reaches the position of the heating element.
A pair of feed rollers for nipping and transporting the recording paper between the platen roller and the recording paper folded and stacked is provided, and when the recording paper is transported toward the paper cutter, the feed roller of the platen roller is provided. The method includes rotating the feed roller to transport the recording paper in the same direction as the transport direction, and stopping the rotation of the feed roller when pulling back the recording paper.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing an embodiment of the present invention.

In FIG. 1, the configuration and operation of the recording paper 1, the thermal head 2, the heating element 3 and the paper cutter 6 are the same as those of the corresponding elements in the conventional example of FIG.

The configuration and operation of the platen roller 4 are basically the same as the configuration and operation of the platen roller 14 in FIG. 2, but can rotate in both the forward direction (arrow A) and the reverse direction (arrow B). . The rotation of the platen roller 4 is driven by a motor 5 via a belt 9. A pair of feed rollers 8a and 8b for sandwiching and transporting the recording paper 1 is provided between the platen roller 4 and the recording paper 1 folded and stacked. The feed rollers 8a and 8b rotate so as to convey the recording paper 1 in the same direction as the conveyance of the recording paper 1 by the platen roller 4 when the recording paper 1 is conveyed toward the paper cutter 6 (arrow C). When the paper is pulled back (arrow D), the rotation is stopped.

Next, the operation of the recorder for an electrocardiograph configured as described above will be described.

The leading end of the recording paper 1 folded and stacked at the perforation is guided between the platen roller 4 and the thermal head 2 through the space between the feed rollers 8a and 8b, so that the position of the recording paper 1 with respect to the heating element 3 is at a predetermined position. Then, while rotating the platen roller 4 in the direction of arrow A via the belt 9 by the motor 5, a current corresponding to a waveform or a character to be recorded is supplied to the thermal head 2, whereby the heating element 3 is turned on. Is heated to record on the recording paper 1.

When a series of recording is completed, the recording paper 1 is continuously conveyed in the direction of arrow C by rotating the platen roller 4 in the direction of arrow A by the motor 5, and the perforation 1a immediately after the recorded portion is moved to the paper cutter. When the recording paper 1 reaches the position 6, the conveyance of the recording paper 1 is stopped. When the recording paper 1 stops, the paper cutter 6 is operated to separate the recorded portion.

When separation of the recorded portion of the recording paper 1 is completed, the motor 5 is rotated in the reverse direction to rotate the platen roller 4 in the direction of arrow B. As a result, the recording paper 1 is transported in the direction of arrow D, and is pulled back and stopped until the recording start position of the recording paper 1 reaches a position immediately below the heating element 3. At this time, the rotation of the feed rollers 8a and 8b is stopped. As a result, the recording paper 1c between the platen roller 4 and the feed rollers 8a and 8b is largely bent and accommodated in the suction space 7 . The next record, to start or this state, et al.

[0017]

As described above, the recorder for an electrocardiograph according to the present invention is constructed so that the platen roller can be rotated in both forward and reverse directions and is connected to a motor which can be rotated in both forward and reverse directions, and a series of recording is performed. After the recording is completed, the recording paper is conveyed and stopped until the perforation immediately after the recorded part of the recording paper reaches the position of the paper cutter, and the paper cutter is operated to separate the recorded part. By rotating the platen roller in the opposite direction by rotating it in the reverse direction, it is pulled back until the recording start position of the first page after the cutting of the recording paper comes to a position immediately below the heating element, and the next recording is started from this state. By doing so, there is an effect that it is possible to prevent waste of one page between one recording and the next recording, and thus it is possible to reduce the consumption of recording paper.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a front view showing an example of a conventional electrocardiograph recorder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording paper 1a, 1b Perforation 2 Thermal head 2 3 Heating element 4.14 Platen roller 5.15 Motor 6 Paper cutter 7 Suction space 8a / 8b Feed roller 9.19 Belt 18 Guide roller 20 Guide plate

Claims (1)

(57) [Claims] 1. A thermal head having a heating element for recording on a continuous recording sheet by heating at a perforation, and holding the recording sheet between the thermal head provided opposite to the heating element. A platen roller rotatable in both forward and reverse directions, a paper cutter provided in front of the platen roller to cut the recording paper, a motor for driving the platen roller to rotate in both forward and reverse directions ,
Between the platen roller and the recording paper folded and loaded
And a pair of filters provided for holding and transporting the recording paper.
After recording on the recording paper by the thermal head and cutting from the perforation position by the paper cutter, the platen roller is rotated in a reverse direction to cut the first recording paper after cutting. Pull back the recording paper until the predetermined position of the page comes to the position of the heating element
The recording paper is conveyed toward the paper cutter.
Indicates the recording direction in the same direction as the transport direction of the platen roller.
Rotate the feed roller to convey the paper,
When pulling back the recording paper, stop the rotation of the feed roller.
A recorder for an electrocardiograph, characterized by including stopping.