JPH0215674Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pen-type recording device that draws characters, figures, etc. on a recording sheet by controlling the movement of a recording sheet and a pen in orthogonal directions, and particularly relates to a pen holder that holds multiple pens. The present invention relates to a pen holder detection mechanism for detecting the type of pen holder.

This invention makes it easy to determine which type of pen holder is installed when multiple types of pen holders that hold different numbers of pens can be installed and replaced on a carriage that moves in the axial direction of the platen. The object of the present invention is to provide a pen holder detection mechanism for a pen-type recording device.

The present invention is characterized in that each pen holder is provided with a member to be detected whose position differs depending on the number of pens held, and a detector corresponding to the member to be detected of each pen holder is provided on the device main body side.

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

FIG. 1 is a perspective view of a pen-type recording device.

First, an outline of the configuration and operation of this pen-type recording device will be explained.

Reference numeral 1 in the figure is a base, and side plates 1a and 1b are provided on both left and right positions on the base 1. The shaft of the platen 10 is rotatably supported by both side plates 1a and 1b. A gear 3 is fixed to the left end of this shaft, and this gear 3 is driven by a pulse motor 2. Further, a handle 4 is connected to the right end of the shaft, so that the platen 10 can be rotated manually. Four pressing rollers Ra and Rb are pressed against both sides of the front surface of the platen 10.
Further, a sheet presser shaft 31 is arranged above the pressure roller Ra, and the sheet presser shaft 31 is connected to the sheet presser shaft 31.
Rc is provided so that it can rotate freely. The recording sheet is held between four pressing rollers Ra, Rb and a platen 10, and the upper part of the sheet is pressed down by a sheet pressing roller Rc to prevent it from curling up. A guide plate 20 is provided behind the platen 10. When mounting a recording sheet on the platen 10, the leading edge of the sheet is guided to the lower side of the platen 10 by the guide plate 20. When a signal is applied to the pulse motor 2 and the platen 10 is rotated in both forward and reverse directions with the recording sheet attached, the recording sheet is sent out in the direction of arrows Ya-Yb. Note that each pressure roller Ra, Rb can be separated from the platen 10 by operating a lever 32.

A guide shaft 5 and an auxiliary shaft 6 are provided in front of the platen 10, and a carriage 50 is movably provided on both shafts 5 and 6. The carriage 50 is driven by a wire W. The wires W connected to both ends of the carriage 50 are connected to the right side plate 1b.
It is wound around a pulley 8 provided on the outside of the guide plate 20 and a pulley (not shown) provided on the outside of the left side plate 1a, and then wound around a drive pulley 9a of a pulse motor 9 installed below the guide plate 20. It is hung.
By the forward and reverse rotation of the pulse motor 9, the carriage 50 is pulled by the wire W and moves in the direction of the arrow Xa-Xb. Carriage 50
The central lower part of the shaft is inserted into the guide shaft 5, and the groove 51 at the end is in sliding contact with the auxiliary shaft 6. Further, the center portion of the auxiliary shaft 6 is supported on the base 1 by a support member 7.

As shown in FIG. 2, the pen holder 52 that holds the pen P is detachable from the carriage 50. A groove for holding a pen P is formed around the pen holder 52, and a leaf spring S is provided at the tip of the pen holder 52. This leaf spring S biases the pen P in the direction away from the platen 10. The pen holder 52 and the leaf spring S are integrally attached to the carriage 50. A spline engagement groove 52c is formed at the rear end of the pen holder 52, and is connected to an end surface of a ratchet 56 on the carriage 50. Further, a pawl plate (not shown) that engages with the ratchet 56 is provided on the carriage 50 so as to be movable up and down. This claw plate is indirectly driven by a solenoid 53 provided outside the left side plate 1a. That is, when the solenoid 53 is intermittently excited, the guide shaft 5
rotates back and forth at a constant angle. This guide shaft 5
has an oval or intermittent circular cross section, and the guide shaft 5 and the lever mechanism in the carriage 50 are spline engaged. This reciprocating rotation of the guide shaft 5 is transmitted through the lever mechanism as an up-and-down drive of the pawl plate, and the ratchet 56 and pen holder 52, which are engaged with the pawl plate, rotate together. By controlling the number of times the solenoid 53 is energized, a predetermined pen P (of a predetermined color) held in the pen holder 52 moves to the writing position (uppermost position). Also, on the carriage 50 is a solenoid 54 and a hammer 5 driven by the solenoid 54.
5 is provided. This hammer 55 is for pushing the pen P in the writing position and pressing the pen tip against the platen 10 against the force of the leaf spring S.

A recording sheet is mounted on the platen 10, and the driving force of the pulse motor 2 moves the recording sheet in the Ya-Yb direction. Further, the carriage 50 is moved in the direction of the arrows Xa-Xb by driving the pulse motor 9, and the pen P is pressed by the hammer 55 at any time to press the pen tip against the recording sheet. And this
The operation in the Xa-Xb and Ya-Yb directions is controlled to record figures, characters, etc. with the pen P on the recording sheet.

Next, the configuration of the pen holder detection mechanism, which is a feature of the present invention, will be explained.

The pen holder 52 shown in FIGS. 1, 2, 3A, and 3B holds four pens P, and the pen holder 60 shown in FIGS. 4A and 4B holds eight pens P. It is something. These two types of pen holders 52 and 60 are designed to be interchangeable with the carriage 50. Pen holder 5
2 consists of two holders 52a and 52b that are connected by a metal shaft 52d and rotate together, and the pen holder 60 for holding eight pens is also made up of two holders that are connected by a metal shaft 60d and rotate together. It consists of holders 60a and 60b. As shown in the figure, each of the holders 52a and 52b has four recesses for holding the pen P, and each of the holders 60a and 60b has eight recesses for holding the pen P. has been done. A groove 60c is also provided at the rear end of the pen holder 60 for spline engagement with the ratchet 56 on the carriage 50. In the pen holder 52 that holds four pens P, a permanent magnet 64a, which is a member to be detected, is embedded around the front holder 52a. Also, a pen holder 60 that holds eight pens P.
In this case, a permanent magnet 64b is embedded as a member to be detected around the rear holding body 60b.

On the other hand, a switch holding plate 61 is provided inside the left side plate 1a of the main body of the pen-type recording apparatus, and two magnetic detection switches 62 and 63 are provided on this plate. The magnetic detection switch 62 is attached to the pen holder 52
The magnetic detection switch 63 is located at a position where it can detect the permanent magnet 64a of the pen holder 60.
4b is provided at a position where it can be detected.

Next, the operation and effects of the present invention with the above configuration will be explained.

Connect the pen holder 52 or 60 to the carriage 50.
When loading, use the hammer 5 as shown in Figure 2.
5 upward and pull out the shaft 57 integrated with the ratchet 56 in the direction of the arrow to set it. Before loading a recording sheet onto the platen 10 and performing a writing operation, first start the pulse motor 9 to move the carriage 50 in the direction of arrow Xb, and then move the pen holder 52 or 60 to the magnetic detection switch 6.
2 and 63 are brought closer together. At that position, the solenoid 53 is repeatedly energized to rotate the guide shaft 5 back and forth, moving the claw plate on the carriage 50 up and down, and rotating the ratchet 56 and the pen holder 52 or 60.

When the pen holder 52 holding four pens P is mounted on the carriage 50, when the pen holder 52 rotates, the permanent magnet 64a passes in front of one of the magnetic detection switches 62, and this Switch 62 turns ON. Magnetic detection switch 62
is turned on, it is determined in the control circuit that the pen holder 52 holding four pens P is mounted. In addition, permanent magnet 6
4a passing in front of the magnetic detection switch 62, calculate the number of times the solenoid 53 is energized, that is, the rotation angle of the pen holder 52, and identify which color pen P is currently in the writing position. You can also do it.

In addition, when the pen holder 60 holding eight pens P is mounted on the carriage 50, when the pen holder 60 rotates, the permanent magnet 64
b passes in front of the other magnetic detection switch 63, and this switch 63 is turned on. When the magnetic detection switch 63 is turned ON, it is determined that the pen holder 60 holding eight pens P is mounted. Further, based on the timing when the permanent magnet 64b passes in front of the magnetic detection switch 63, it is possible to identify which color of the eight pens P is at the writing position.

In the illustrated embodiment, the pen holder 52 holds four pens P, and the pen holder 60 holds eight pens P.
In addition, the pen holder that holds two pens P and the pen holder that holds six pens P can be exchanged, and the number of holders 52a, 52b, 60a, and 60b of the holder can be increased. Each holder may be provided with a member to be detected, and on the other hand, a large number of detectors may be provided on the device side depending on the type of pen holder. Further, as other embodiments of the detector and the member to be detected, a leaf switch, a protrusion that mechanically operates the leaf switch, an optical detection switch, a member that reflects light, etc. may be used.

As described above, according to the present invention, the following effects can be achieved.

(1) A pen holder is provided with a plurality of holders, and a detection member is provided on a different holder for each type of pen holder, and a detector is provided at a position corresponding to each of these holders on the main body of the device. With this configuration, it is possible to reliably detect which type of pen holder is attached to the carriage.

(2) In addition to identifying the type of pen holder, it is also possible to determine which pen is in which position using the same detector and detected member, making it possible to perform two types of detection with one set of detection means. .

(3) Since the pen holder can be determined by the pen-type recording device itself, that is, by the terminal device itself, there is no need to perform switching operations on the interface or hardware of the control device. It is possible to use pens interchangeably, which saves time and effort in operation.

(4) By preparing separate pen holders for each number of pens held and exchanging them, it is possible to immediately detect which pen holder holds which number of pens. Therefore, by replacing the pen holder as necessary, you can record with as many pens as you need at that time. It is possible to prevent wasteful time such as lost time when selecting a pen due to holding the pen, and to prevent the overall recording speed from decreasing due to this.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the pen-type recording device according to the present invention, Fig. 2 is an exploded perspective view of the carriage and pen holder, Figs. 3A and 4A are plan views showing the pen holders by type, and Figs. 3B and 4B. are each a front view thereof. 1... Base, 2... Pulse motor, 5... Guide shaft, 9... Pulse motor, 10... Platen, 50... Carriage, 53, 56... Pen switching mechanism, 54... Hammer drive solenoid,
55...Hammer, 52...Pen holder (for holding four pens), 52a, 52b...Holder, 60...
Pen holder (for holding 8 pens), 60a, 60b
...Holding body, 62, 63...Detector (magnetic detection switch), 64a, 64b...Member to be detected (permanent magnet), P...Pen.

Claims (1)

[Scope of utility model registration request] A platen that is driven to rotate in both forward and reverse directions and a carriage that moves along the axial direction of the platen are provided.A pen holder that holds a plurality of pens is rotatably provided on the carriage. A pen-type recording device comprising: a pen switching mechanism that rotates the pen holder to move a predetermined object to a writing position; and a hammer that presses the tip of the pen that has reached the writing position toward the platen. , multiple types of pen holders that hold different numbers of pens can be freely replaced with each other in the carriage.
Each of the plurality of types of pen holders is provided with a plurality of holders each having a number of pen holding recesses corresponding to the number of pens held. Detected members are provided on different holders, and detectors are provided at positions corresponding to the detected members provided on the respective holders of different types of pen holders when the pen holder moves to a predetermined position. A pen holder detection mechanism for a pen-type recording device characterized by the following.