JPH0371646B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-balancing recorder, and an object thereof is to be able to automatically draw a reference line on the recording paper of the recorder.

Generally, when recording measured values using an automatic balancing recorder, reference lines such as coordinate axes are often added after the measurement to make the measurement results easier to see. Conventionally, methods for drawing these reference lines include, for example, drawing a straight line passing through the zero point on a ruler after measurement, or moving the X-axis and Y-axis movement knobs of the recorder.
After adjusting to the zero point, a method has been used in which, for example, only the moving knob in the X-axis direction is moved to draw an X-axis reference line. However, the former method has problems with accuracy, and the latter method has drawbacks such as the hassle of knob operations and the need to reset the zero point position after drawing the reference line.

The present invention aims to eliminate these drawbacks and provides an automatic balancing recorder that can automatically draw a reference line simply by flipping a switch.

An embodiment of the present invention will be described below with reference to the drawings.

The drawing is a configuration diagram showing a main part of a reference line drawing device for an automatic balancing recorder which is an embodiment of the present invention. In the figure, 1 is a signal input terminal in the X-axis direction, 2 is an amplifier, and 3 is a pen drive motor. The amplifier 2
and the pen drive motor 3, the X-axis drive device 12
X is configured.

Reference numeral 4 denotes a recording paper surface on the recorder body, 5 a sliding part for driving the X-axis, and 6 a guide on which the sliding part 5 is moved using a pulley or the like by the driving force of the pen driving motor 3. Rail 7 is a linear Y-axis guide rail fixed to the sliding portion 5 at right angles. A pen head 8, which also serves as a Y-axis sliding section and has a pen attached thereto, is mounted on the guide rail 7 so as to be movable in the Y-axis direction. 12Y is a Y-axis drive device for moving the pen head 8 in the Y-axis direction;
13a is a volume for setting the zero point of the X axis; 13
b is the power supply for zero point adjustment, 14 is the three contacts a,
b, c, R is a resistor, C is a capacitor, +V is a positive power supply voltage, -V is a negative power supply voltage, 9 is a zero point on the recording paper surface 4, 10 is an X-axis reference line, 11 is a Y Indicates the axis reference line.

Next, the operation of this device will be explained. When there is no voltage input to the signal input terminal 1 in the X-axis direction, the zero point in the X-axis direction is adjusted by the volume control 13a, and the zero point in the Y-axis direction is also adjusted by a volume control (not shown) configured in the same manner as the volume 13a. Align the zero points in the Y-axis direction. Next, the changeover switch 14
When switching from contact b, which is not applying voltage, to contact a, the positive power supply voltage +V is input to the X-axis drive device 12X via an integrating circuit consisting of a resistor R and a capacitor C. 8 is zero point 9
The X-axis reference line 10 is drawn by moving in the X-axis direction.
By switching the changeover switch 14 to contact c, the pen head 8 can be driven in the opposite direction in the same manner as described above. In the above configuration, the applied voltage in the positive or negative direction is applied to the X-axis drive device 12X via an integrating circuit having a constant time constant (=RC).
The moving speed of the pen head 8 can be made slower than when there is no integral circuit. Therefore, the ink on the pen head 8 is not blurred, and accurate and clear reference lines can be drawn. The Y-axis reference line can also be drawn accurately using the same method as the X-axis reference line described above.
Can draw clearly. It goes without saying that the integrating circuit may be replaced with a circuit that generates a triangular wave. Furthermore, by using a structure for the changeover switch 14 that automatically returns to contact b when the switch knob is not touched, measurement errors due to forgetting to turn off the changeover switch 14 can be prevented. can.

As explained above, according to the present invention, a reference line can be accurately and clearly drawn with a simple operation, and therefore has great industrial value.

[Brief explanation of drawings]

The drawing is a configuration diagram of a reference line drawing device for an automatic balancing recorder which is an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Signal input terminal, 2... Amplifier, 3... Pen drive motor, 4... Recording paper surface, 5... Sliding part, 6... Guide rail, 7... Guide rail,
8...Pen head, 9...Zero point, 10...X-axis reference line, 11...Y-axis reference line, 12X...X-axis drive device, 12Y...Y-axis drive device, 13a...Volume, 13b... Power supply, 14... selector switch,
R...Resistor, C...Capacitor.

Claims (1)

[Claims] 1 A Y-axis drive device that rotates a Y-axis pen drive motor in response to a signal input to a Y-axis signal input terminal and slides a pen head along a Y-axis guide rail; The X-axis pen driving motor is rotated in accordance with the signal input to the signal input terminal of the Y-axis pen drive motor, and the Y-axis guide rail, which is slidably attached, is slid along the X-axis guide rail. An X-axis drive device, and a changeover switch that can selectively apply positive and negative voltages to each of the Y-axis signal input terminal and the X-axis signal input terminal via an integrating circuit, Set the signal input terminals for the axes and the An automatic balancing recorder characterized by: