JPS61165623A - Color-changing device of pen-type multi-color recorder - Google Patents

Abstract

PURPOSE:To realize compacted construction and economical operation, by installing an electrode plunger displaced by rotation of a gear fixed on a motor output shaft, engaged with either one of a plurality of pens selectively and designed to drive the engaging pen. CONSTITUTION:A color-changing device is equipped with an electromagnetic plunger 24 and its movable core 25 is fixed to a carriage and it fits in a groove 30 oriented in the radial direction on a surface of a supporting plate 29. Further, a follower gear 32 is fixed to the electromagnetic plunger 24 with set screws, etc. and the gear 32 is in engagement with a pinion pressed into a shaft 36 of a step motor 35 for pen switching. Above-mentioned pen-switching step motor 35 is fastened to a carriage 13. A color-changing device of a pen-type multi-color recorder is available for alternative driving of a plurality of pens and further, as a single electromagnetic plunger does serve all the purpose, the carriage can be constructed in a compact and light-weighted manner with a result of successful reduction of costs.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a color changing device used in a recording device used in an X-Y plotter device using a plurality of pens, a drawing machine, a graphic writer, etc.

2. Description of the Related Art Conventionally, a color changing device for a pen-type multicolor recording device is generally shown in FIG.

In Fig. 6, reference numeral 1 denotes a pen holding lever 1. Normally, when the pressure of a coil spring 2 is applied to the movable core 4 of the electromagnetic plunger 3, force is applied in the direction of the arrow around the support shaft 5, and the pen holding lever is 6 is compressed, the pen 7 is lifted in the direction of the arrow, and the pen tip 9 is separated from the recording paper 8. Furthermore, when the electromagnetic plunger 3 is energized, the movable core 4 compresses the coil spring 2 and moves in the direction of the arrow, and the force applied to the pen holding lever 1 in the direction of the arrow about the support shaft 6 disappears, causing the pen to move. The elastic force of the presser spring 60 causes the pen 7 to move in the direction opposite to the arrow input direction, and the pen tip 9 is pressed against the recording paper 8.
Recording becomes possible.

In the above configuration, when a plurality of pens are attached as shown in FIG. 7, the electromagnetic plunger 3 is arranged corresponding to each pen 7, and only the electromagnetic plunger 3 corresponding to the pen of the desired color is placed. By excitation, a pen of a desired color is selected.

Problems to be Solved by the Invention Therefore, if there are many types of pen colors, many electromagnetic plungers are required, which requires a large space.
Moreover, it also has the disadvantage of high cost.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to change the color of a pen in a pen-type multicolor recording device by controlling a rotational drive source such as a step motor. The present invention provides a color changing device for a pen-type multicolor recording device that can be manufactured in a compact, lightweight, and inexpensive manner.

Means for Solving the Problems In order to solve the above-mentioned problems, the color changing device for a pen-type multicolor recording device of the present invention includes a carriage equipped with a plurality of recording pens,
Consisting of an electromagnetic plunger used as means for pressing the pen against the recording paper, a driven gear fixed to the electromagnetic plunger, and a rotational drive source fixed to the carriage and having a pinion gear meshing with the driven gear. be done.

Effect: With the above configuration, depending on the drive of the rotational drive source,
The desired color of the pen can be selected by moving one electromagnetic plunger to a predetermined position, and a small and lightweight carriage can be formed, thereby reducing costs.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 2 is a front view of a pen-type multi-color recording apparatus according to an embodiment of the present invention, which is equipped with a color changing device, and FIG. 1 is a side sectional view of the 7th gear portion of the carrier IJ.

In Fig. 2, reference numeral 10.11 is a side plate, and a carriage 13 equipped with a plurality of pens of different colors slides in the direction of arrow X on a guide shaft 12 fixed between these two side plates 10 and 11. The carriage 13 is supported freely by a stable motor 16 . Pulley gear 16. It is driven via a belt 14.

In FIG. 1, a pen 17 mounted on a carriage 13
is due to the biasing force of the pen lifting spring 18.

A force is applied in the direction of the arrow through the pen holding lever 19, and the pen tip 2o is separated from the recording paper 21. Note that the pen holding lever 19 can rotate around the support shaft 22.

Further, a pen holding spring 23 is provided at the top of the pen 17, and when the electromagnetic plunger 24 is energized.

Since the movable core 25 moves in the opposite direction to the arrow entry direction, the pen holding lever 19 rotates around the support shaft 22 in the opposite direction to the arrow entry direction, the pen lifting spring 18 is compressed, and the pen tip 2o is It is pressed against the recording paper 21 by the elastic force of the pen presser spring 230.

Also, Figure 3 1. As shown in FIG. 4, the electromagnetic plunger 24 is provided with a protruding shaft 26.28.
26 is inserted into bearings 27 and 28 provided on the carriage 13, so that the electromagnetic plunger 24 is rotatably held relative to the carriage 13. This electromagnetic plunger~24
As shown in FIG. 5, the movable core 26 fits into a radial groove 30 provided on the surface of a retaining plate 290 made of an elastic body and fixed to the carriage. A coil spring 31 biases the electromagnetic plunger 24 in the direction of arrow C.

Further, a driven gear 32 is fixed to the electromagnetic plunger 24 with screws or the like, and this driven gear 32 meshes with a pinion press-fitted into a shaft 36 of a pen switching step motor 36. The pen switching step motor 36 is fixed to the carriage 13 with screws or the like.

Next, the pen color changing operation will be explained.

When the pen color changing operation is started, the pen color changing step motor 36 rotates, the rotational force is transmitted from the pinion gear 33 to the driven gear 32, and the electromagnetic plunger 24 with the driven gear 32 fixed moves the protrusion shaft 26. For example, when the center receives a rotational force in the direction of arrow E, the movable core 25, which is positioned by the radial grooves 30 of the elastic holding plate 29, receives a force in the direction of arrow E, and the holding plate 29 rotates in the direction of arrow C. While being elastically deformed, the carriage 24 moves in a direction opposite to the direction of arrow C in FIG. 4 against the biasing force of the coil spring 31, thereby moving to another radial groove 30. Here, by controlling the signal given to the pen switching light step motor 35, the amount of rotation of the carriage 24 is changed, and the movable core 25 can be moved and positioned to any position in the radial groove 3o. Note that the radial groove 30 corresponds to each color of pen.
It is formed at the same pitch as the arranged pen holding levers 19, and by moving the movable core 25 to any position in the radial groove 30, a pen of a desired color can be selected.

As described in detail, the color changing device for a pen-type multicolor recording device of the present invention requires only one electromagnetic plunger to selectively drive a plurality of pens, making the carriage lightweight and compact. It can be formed into a shape, which makes it possible to reduce costs. Further, since the carriage can be formed to be lightweight and compact, various effects such as an improvement in the moving speed of the carriage can be achieved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a color changing device of a pen-type multicolor recording device showing an embodiment of the present invention, FIG. 2 is a front view of the same multicolor recording device, and FIG. 3 is a front view of the same color changing device. , Fig. 4 is a front view of the same color changing device with the steering/knoping motor removed, Fig. 5 is a cross-sectional view taken along the Mujin' line in Fig. 4, and Fig. 6 is a color changing device of a conventional pen-type multicolor recording device. 13... Carriage, 15... Steer 7" motor, 16... Pulley gear, 17.・
...Pen, 24...Electromagnetic plunger, 2
5... Movable core, 32... Driven gear, 3
6...Step motor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 4 Figure 5 Figure 6 Figure 7

Claims (2)

[Claims] (1) A carriage equipped with a plurality of recording pens, a color change motor fixed to this carriage, and a color changing motor fixed to the output shaft of the motor, which is moved by the rotation of a gear to change the color of the plurality of recording pens. A color changing device for a pen-type multicolor recording device, characterized in that it is equipped with an electromagnetic plunger that selectively engages with one pen and drives the pens that engage with each other. (2) A gear is formed in a part of the electromagnetic plunger, and this gear meshes with a gear fixed to the output shaft of the color change motor, so that the electromagnetic plunger responds to the rotation of the output shaft of the color change motor. 2. A color changing device for a pen-type multicolor recording device according to claim 1, wherein said electromagnetic plunger rotates to selectively drive one of the plurality of pens.