JPH0219406B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a recorder pen holding device used when recording changes in a plurality of analog signals on recording paper using a plurality of recording pens.

Prior Art FIG. 4 is a perspective view of a conventional multi-pen recorder pen holding device, and FIG. 5 is a diagram showing the moving direction of the pen in the conventional example. The configuration of this conventional example will be explained below with reference to FIGS. 4 and 5.

In FIGS. 4 and 5, reference numeral 1 denotes a recording pen, which is attached to a pen holder 2 and held by a slider 3 via a rotating shaft 4. As shown in FIG. The slider 3 is slidably held on a guide shaft 5. 6 is a pen lift shaft that moves the recording pen 1 up and down in the A direction. Reference numeral 7 denotes recording paper, and this recording paper 7 passes over a paper feed sprocket 8 and a chart table 9, and is sent in the direction B by a feed roller 10.

Next, the operation of the above conventional example will be explained. Fourth
In the figure, when an analog signal is input to the multi-pen recorder, the recording pen 1 is moved through a servo amplifier and a servo mechanism (not shown) to drive the slider 3 in the C direction along the guide shaft 5, and the pen holder The recording pen 1 held by 2 also records the displacement amount of the analog signal by moving in the C direction. Sprocket 8
The recording paper 7 is sent in the direction B at a constant speed via the chart table 9, and then the recording paper 7 is transported by the feed roller 10.
is pulled with a certain tension to make the recording surface flat,
Furthermore, the recording paper 7 is sent out to the storage section. By moving the pen lift shaft 6 in the A direction, the recording pen 1 can rotate the pen holding portion 2 around the rotation shaft 4, and the tip of the recording pen 1 can be moved up and down in the D direction independently.

Problems to be Solved by the Invention However, in the above-described configuration, if the recording pen is brought into contact with and separated from the recording paper for each channel, the recording pen 1b to be separated will be in a circular arc as shown in FIG. Due to its movement, it collided with the neighboring pen 1a which was in contact with the recording paper, causing a problem.

Furthermore, the interval between the recording pens is as shown in Figure 5. In order to read the passage of time from the time axis scale on the recording paper by arranging the recording pens at regular intervals from P ₀ to P ₅ , the guide axis and pen lift axis must be adjusted. Accuracy had to be improved, which became a problem.

In order to solve the above-mentioned problems, the present invention is made smaller as a whole even if there are multiple series of pens, and even if one of the plurality of recording pens is brought into contact with the recording paper or separated, it will not collide with the neighboring pen. It is an object of the present invention to provide an excellent recording pen holding device capable of inexpensive and highly accurate recording.

Means for Solving the Problems In order to solve the above problems, the recording pen holding device of the present invention linearly moves the recording pen up and down by vertical movement of the pen vertical slide axis, and also moves the recording pen on a curved surface. The configuration is such that recording pens are arranged at equal intervals on the recording paper placed above.

Function The present invention allows the recording pen to move up and down with the above configuration, so even if there are multiple series of recording pens, the overall size can be made smaller, and even if the recording pens are brought into contact with and separated from the recording paper independently, the recording pens can be moved in a straight line. The vertical movement prevents the pen from colliding with the neighboring recording pen.

Embodiment The structure of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 20 denotes a removable recording pen that stores ink, and this recording pen 20 is attached to a pen holder 21. The pen holder 21 is connected to a pen vertical slider 22 and guided by a vertical slide shaft 23 fixed to a slider 25. 24 is a pen pressure coil spring 26 is a recording pen 2
0 in the Z direction. 2
7 is a slider guide shaft a, and a slider guide shaft b
28 and is coupled to the left and right fixed ends.

Reference numeral 29 denotes a tension system 29 that drives the slider 25. As the tension system 29 is pulled left and right according to an analog displacement amount, the recording pen 20 moves in the Y direction and records an analog signal. 30 moves the recording paper in the direction of arrow X.

FIGS. 2 and 3 show examples in which the recorder pen holding device is implemented in a multi-pen recorder. In FIG. 2, pen holding devices shown in FIG. 2 are arranged at equal intervals on the circumference of a chart table 31 on a curved surface. Figure 3 shows a chart table 32 on a flat surface.
This is an example in which the pen holding devices shown in FIG. 1 are arranged in parallel and at equal intervals.

Next, the above embodiment will be explained in detail.
The center of the tip of the recording pen 20 in FIG. It can be determined by position dimensions.

The present invention moves the pen holder 21 to the vertical slide shaft 23.
It is connected to the pen vertical slider 22 guided by the pen lift shaft 26, and by moving the pen lift shaft 26 up and down in the Z direction, it is possible to move the recording pen up and down in a straight line, and even if adjacent pens are moved up and down alternately, they do not come into contact with each other. There is no.

Furthermore, since the pen tip is tilted in a direction with less frictional resistance with respect to the recording paper feeding direction X, the recording line will not jump even if the recording paper is fed at a high speed.

In the embodiment shown in Fig. 2, the pen holding member shown in Fig. 1 is arranged on the circumference of the chart table on the curved surface, but the center of the pen tip resists the curved surface in the feeding direction of the recording paper. is tilted in the direction of less.

As can be seen from the embodiments shown in FIGS. 2 and 3, the slider 25 is arranged at equal intervals between the guide shaft a27 and the guide shaft b28, and is arranged on a straight line from the tip of the recording pen 20 to the guide shaft a27. ,
The recording pen 20 and the pen holding member that holds and drives the recording pen 20 can be of the same shape, and an inexpensive and highly reliable pen holding device can be provided.

This embodiment has the following advantages.

(a) The pen vertical slide axis and the center of the tip of the recording pen are aligned with the axis, and since the recording pen moves up and down in a straight line, recording pens that are close together do not come into contact with each other.

(b) To provide an inexpensive, high-precision multi-pen recorder that can be placed parallel to or on a curved surface with respect to the surface of the recording paper, so that a recording pen of the same shape and a recorder pen holding device of the same shape can be used. Can be done.

(c) Since the pen up and down mechanism can be provided between the guide shafts of the Z axis, the servo structure can be made smaller.

(d) Suitable for high-speed recording because the pen tip is oriented in the direction of least resistance to the recording paper feeding direction.

Effects of the Invention As is clear from the above embodiments, the present invention allows the recording pen to be moved up and down in a straight line by vertically moving the pen vertical slide shaft, and the recording pen is placed at equal intervals on recording paper arranged on a curved surface. Because of this configuration, even if there are multiple lines of recording pens, the overall size can be made smaller, and there is no possibility of them colliding with neighboring recording pens, so that it is possible to perform accurate recording at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a recording pen holding device according to an embodiment of the present invention, FIGS. 2 and 3 are front views showing an example of use of this embodiment, and FIG. 4 is a perspective view of a conventional recording pen holding device. 5 are diagrams showing the problems of the conventional example. 1... Recording pen, 2... Pen holder, 3... Slider, 4... Rotating shaft, 5... Guide shaft, 6... Pen lift shaft, 7... Recording paper, 8... Paper feed sprocket, 9 ... Chart table, 10 ... Feed roller, 20 ... Recording pen, 21 ... Pen holding section, 22 ... Up and down slider, 23 ... Up and down slide shaft, 24 ... Pen pressure coil spring, 25 ... Slider, 26 ... Pen lift shaft, 27 ... Guide shaft a, 28 ... Guide shaft b, 29 ... Tension system, 30 ...
Recording paper, 31...chart table, 32...chart table, Q...rotation axis fulcrum, A...pen lift axis moving direction, A'...pen tip moving direction,
P ₀ , P ₁ to _{P 5} ... Interval between recording pens.

Claims (1)

[Claims] 1. A slider that is attached so as to be slidable in the horizontal direction along two slider guide shafts and that slides along these guide shafts by the tension of the tension thread, and a slider that is slidable in the vertical direction on this slider. provided in parallel between the attached recording pen and these guide shafts, and engaged with a protrusion of the holding portion of the recording pen,
It is equipped with a pen lift shaft that moves the recording pen in the vertical direction, and has a plurality of sliders, recording pens,
A recording pen holding device characterized in that a pen lift shaft and a pen lift shaft are arranged at equal intervals on recording paper.