JP2560579Y2 - Recorder - 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 for performing recording such as printing on recording paper in response to an input signal.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing a conventional recorder. In the figure, the recording head 51 is movable along a slide shaft 56 and a guide shaft 57 by a drive mechanism (not shown).
A recording operation such as printing is performed on a recording paper 59 on a platen 58 provided below the recording head 51.

A recording head 51 is provided between a sliding shaft 56 and a guide shaft 57, a carriage 52, a head 53 mounted in front of the carriage 52, and a projection provided on the upper surfaces of the carriage 52 and the head 53. And a ribbon cassette 55 which is detachable from the ribbon winding unit 54 from the lateral direction.

A plurality of hitting pins 60 are arranged on the bottom surface of the head 53 in a direction perpendicular to the feeding direction of the recording paper 59. The ribbon cassette 55 has
The endless ink ribbon 63 including a plurality of color areas corresponding to the number of ink ribbons is accommodated. This ink ribbon 6
A portion of the recording paper 3 is extended right above the hitting pin 60 in the same direction as the recording paper 59 in the feeding direction. The ink ribbon 63 is wound in one direction by the ribbon winding unit 54. A driving mechanism including a motor and a gear for feeding the ink ribbon 63 is built in the ribbon winding section 54.

In the recorder configured as described above, the feeding direction of the recording paper 59 is set as the time axis, and the width direction is set as the effective recording width including the zero point and the span length of the input signal. Each color of the ink ribbon 63 is used, for example, corresponding to each channel of the input signal. Therefore, after the carriage 52 moves in the direction orthogonal to the feeding direction of the recording paper 59 and stops at a position corresponding to the input signal, one of the hitting pins 60 corresponding to the channel selectively protrudes, and the corresponding ink ribbon 63 Is recorded on the recording paper 59 in the color of. Then, the ink ribbon 63 is fed a predetermined amount by the driving force of the ribbon winding unit 54 after the recording of the dot.

[0006]

However, in the conventional recorder, the ink ribbon 63 in the ribbon cassette 55 is not provided.
In order to provide the ribbon winding section 54 for exclusive use in winding, the power for driving the motor is required, and the cost is increased.
Further, since the ribbon take-up portion 54 is provided on the carriage 52 and moves integrally, the weight of the carriage 52 increases, the motor for driving the carriage 52 becomes large, and the moving operation of the carriage 52 can be performed at a high speed. Could not be converted.

The present invention has been made in view of the above problems, and enables the ink ribbon to be wound with a simple configuration without using electric power, and the carriage as a movable portion including a head is reduced in size and weight. It aims to provide a recorder that can be used.

[0008]

In order to achieve the above object, a recorder according to the present invention uses a recording paper 17 corresponding to an input signal.
In a recorder for performing recording by a recording mechanism 6c provided on a carriage 6 movable in the upper width direction, a part is provided across the recording mechanism 6c and the recording paper 17,
By moving the ribbon cassette 13 with respect to a recording mechanism 6c of the carriage 6 and a ribbon cassette 13 containing an ink ribbon 14 having a plurality of color areas 14a to 14f, the color area 1 of the ink ribbon 14 is
4 a to 14 f, a ribbon moving mechanism 15, a fixing piece 32 fixed to the main body of the recorder and having a threaded groove 32 a formed therein, and a winding for winding the ink ribbon 14 of the ribbon cassette 13. A one-way clutch shaft 30 connected to the take-up shaft 30a and having a screw screw 30c that can be screwed into the screw groove 32a, and that rotates the ink ribbon 14 in only one direction by rotation of the screw screw 30c. Are provided.

[0009]

According to the above arrangement, the carriage 6 moves in response to an input signal, and recording such as printing is performed on the recording paper 17 by the recording mechanism 6. When recording, the ribbon moving mechanism 1
5, the ink ribbon 14 is moved to select an arbitrary color in the color areas 14a to 14f of the ink ribbon 14,
Recording is performed in this color. And ink ribbon 1
4 moves, the screw 30 of the one-way clutch shaft 30
The one-way clutch shaft 30 is connected to the ink ribbon 14 in a state where the one-way clutch shaft 30 is continuously inserted into the fixed screwing groove 32a in a screwing state.
In one direction. Note that the screw 30c is screwed into the screw groove 32.
While the ink ribbon 14 continues to move in the direction deviating from the direction a, the one-way clutch shaft 30 does not take up the ink ribbon 14, and the ink ribbon 14 is always taken up in only one direction.

[0010]

FIG. 1 is a front view showing a recorder of the present invention, FIG.
FIG. 2 is a sectional view taken along the line AA of FIG. 1. Pulleys 2 are rotatably provided on the pair of left and right side plates 1 and 1, respectively.
A thread 3 is stretched between the pulleys 2. The yarn 3 is circulated around a drive pulley 4 a of a carriage motor 4. A guide shaft 5 is connected between the side plates 1 and 1, and a base end of a carriage 6 is pivotally supported on the guide shaft 5. In addition, a part of the warp yarn 3 is
It is fixed to the carriage 6 by a. Therefore, the carriage 6 can slide between the side plates 1 and 1 along the guide shaft 5 by driving the carriage motor 4.

A pin hitting mechanism 6c composed of an electromagnetic coil and an amateur is built in the carriage 6, and a hitting pin 6b protrudes downward from the tip of the carriage 6. When the electromagnetic coil is energized, the tip of the armature projects the hitting pin 6b downward. The hitting pin 6b is returned by a spring member.

Next, the ribbon moving mechanism 15 will be described. The ribbon moving mechanism 15 is a mechanism for moving an ink ribbon 14 of a ribbon cassette 13 to be described later with respect to the striking pin 6b, and performing dot recording with the color changed on the recording paper 17. On the side plates 1, 1, linear guide rails 7,
The guide rails 7 slidably hold rails 9 provided horizontally from both sides of the ribbon holder 8 to the rear. In the lower part of the rail 9, a rack groove 9a is formed continuously.

On one side plate 1, a pinion 10 having gear teeth 10a meshing with the rack groove 9a of the rail 9 is provided.
Are rotatably supported. On the outer periphery of the pinion 10,
A reduction gear 10 b is formed, and the reduction gear 10 b is meshed with a drive gear 11 a of the ribbon motor 11. Further, a pinion 12 that meshes with the rack groove 9 a of the rail 9 is supported on the other side plate 1. Thereby, the ribbon holder 8 can be horizontally moved in the front-rear direction indicated by an arrow in FIG. The ribbon motor 11 slides and positions the ink ribbon 14 at a pitch corresponding to the width of the color areas 14a to 14f of the ink ribbon 14 described later.

The ribbon holder 8 is provided along the moving direction of the carriage 6, and holds the ribbon cassette 13 in a detachable manner. The ribbon cassette 13 accommodates an endless ink ribbon 14 having a plurality of colors. In this embodiment, the recorder has six channels of inputs, and as shown in FIG.
It is configured to have six color areas up to 14f. Channels 1 to 6 are arranged in order from the front to the rear of the recorder. The ink ribbon 14 is partially extended between the lower ends of the guide portions 13a and 13b which are formed to project downward on both sides of the ribbon cassette 13. The ink ribbon 14 is located immediately below the striking pin 6b at the tip of the carriage 6 in a state where the ink ribbon 14 is attached to the ribbon holder 8.

A one-way clutch shaft 30 for feeding the ink ribbon 14 projects behind the ribbon cassette 13. The one-way clutch shaft 30 is connected to the ink ribbon 14 of the ribbon cassette 13 as shown in the enlarged view of FIG.
, A coil spring 30b having one end connected to the winding shaft 30a and wound in one direction, and a screwing screw 30c connected to the other end of the coil spring 30b. It is desirable to use a screw thread 30c having a large thread groove interval and a gentle slope.

Fixed piece 3 fixed to the recorder main body
2, a screw hole 32a corresponding to the screw screw 30c is formed, and the screw screw 30c is screwed into the screw hole 32a by the ribbon holder 8 sliding rearward of the apparatus.
The screw 30c and the screw hole 32a are close to each other with a slight distance L therebetween. For example, the screw is always screwed in a state in which the ribbon holder 8 moves to the rear of the apparatus, The interval is set to the configuration in which the screwing is released in the state where it is located. Screw screw 30c and screw hole 32a
May be always screwed together, and the ribbon holder 8
Can be screwed into each other from a position on the way to the rear of the device. These can be freely set by the distance L between the screw 30c and the screw hole 32a and the length of the screw 30c.

The one-way clutch shaft 30 is
When 0c is screwed into the screw hole 32a and rotates in the CCW direction, the coil spring 30b is tightened, and the winding shaft 30a rotates together with the screwing screw 30c to wind up the ink ribbon 14. When the screw 30c comes off from the screw hole 32a, the screw 30c rotates in the CW direction to open the coil spring 30b, and the winding shaft 30a does not rotate.

A chart base 16 is provided below the apparatus. In the chart base 16, the striking pins 6b,
Immediately below the ink ribbon 14, a platen 16a is rotatably provided, and feeds the recording paper 17 forward at a constant chart speed. The recording paper 17 has an effective recording width of the input signal in the width direction of the apparatus and a time axis in the feeding direction.

Next, the operation of the above configuration will be described. 6
Each input signal of CH is sequentially taken into the recorder,
A dot is recorded on the recording paper 17 for each CH. For example, CH1
When the input signal is recorded, the carriage 6 moves in the width direction of the recording paper 17 to a position corresponding to this signal value.

At the same time, the drive of the ribbon motor 11 is controlled,
Color area 14 of ink ribbon 14 corresponding to CH1
a slides along the guide rail 9 for a predetermined distance that is immediately below the hitting pin 6b. Note that the ribbon cassette 13 is always supported in a horizontal state by the ribbon moving mechanism 15, and the ribbon motor 11 can be stopped after the movement, so that heat generation and power consumption can be reduced. Thereafter, when the hitting mechanism 6c inside the carriage 6 operates, the hitting pins 6b protrude, and the hitting points are recorded on the recording paper 17 by the first color area 14a.

When the ribbon holder 8 is moved to the rear of the apparatus by the ribbon moving mechanism 15 while the recording of the hitting points for 6 channels is sequentially performed, the one-way clutch shaft 30 is moved.
Screw 30c rotates in the CCW direction, and the coil spring 3
Similarly, the winding shaft 30a rotates in the CCW direction via 0b. Thus, the position of the ink ribbon 14 that is wound in one direction and pressed by the hitting pin 6b is changed. By the way, when the ribbon holder 8 moves forward of the apparatus, the screw 3 of the one-way clutch shaft 30
Although 0c rotates in the CW direction, the coil spring 30b opens, so that the winding shaft 30a does not rotate and the ink ribbon 14 is not wound in the opposite direction. Thus, the ink ribbon 14 can always be wound only in one direction.

Each time the recording of the dots for 6 channels is performed, the platen 16a is rotated by a predetermined angle, and the recording paper 17 is fed by a predetermined amount according to the chart speed.

In the above-described embodiment, the one-way clutch shaft 30 is provided on the back of the ribbon cassette 13, but the one-way clutch shaft 40 is provided on the ribbon holder 8 as shown in FIG. It may be. In this case, the end of the ribbon winding shaft 13b of the ribbon cassette 13 is formed in a flat shape or the like to prevent rotation, and the winding shaft 40a provided on the ribbon holder 8 side is provided with the shaft 13b.
A flat fitting groove 40ab having a diameter that fits into is formed. Other than that, the coil spring 40b and the screw shaft 40c are the same as those described above. Thereby, the configuration of the ribbon cassette 13 can be simplified.

In the above-described embodiment, the ribbon cassette 13 is detachably attached to the ribbon holder 8. However, the rail 9 having the rack groove 9a is provided at the rear of the ribbon cassette 13 without the ribbon holder 8. In this case, the same operation and effect as those of the above-described embodiment can be obtained. In this case, the one-way clutch shaft 30 is provided on the ribbon cassette 13. Note that, instead of the one-way clutch shaft 30, a gear mechanism having a one-way clutch can be used. In this case, the same operation and effect as described above can be obtained.

[0025]

According to the recorder of the present invention, the one-way clutch shaft is connected to the winding shaft of the ink ribbon, and the one-way clutch shaft is used when the ribbon cassette is moved by the ribbon moving mechanism to change the recording color. Is screwed into the fixed screw groove, so that the ink ribbon of the ribbon cassette can be sequentially wound only in one direction at the same time. Thus, a special motor for winding the ink ribbon is not required, the carriage can be reduced in size and weight, and the mechanism can be simplified and the cost can be reduced.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken on line AA of FIG. 1;

FIG. 3 is a perspective view showing a one-way clutch shaft.

FIG. 4 is a diagram showing another configuration example of the present invention.

FIG. 5 is a perspective view showing a conventional recorder.

[Explanation of symbols]

6 carriage, 6b dot pin, 8 ribbon holder
11: ribbon motor, 13: ribbon cassette, 14: ink ribbon, 14a to 14f: color area, 15: ribbon moving mechanism, 16a: platen, 17: recording paper. 30,4
0: One-way clutch shaft, 30a winding shaft, 30b coil spring, 30c screwing screw.

Claims (1)

(57) [Scope of request for utility model registration] 1. A recorder for performing recording by a recording mechanism (6c) provided on a carriage (6) movable in a width direction on a recording paper (17) in response to an input signal. A ribbon cassette (13) containing an ink ribbon (14) partially provided between recording sheets and having a plurality of color areas (14a to 14f);
A ribbon moving mechanism (15) that can select a color area of the ink ribbon by moving the ribbon cassette with respect to a recording mechanism of the carriage; A fixing screw (30c) formed with the fixing piece (32a) and a winding shaft (30a) for winding the ink ribbon of the ribbon cassette, and a screw (30c) that can be screwed into the screw groove. A one-way clutch shaft (3) that winds the ink ribbon in only one direction by rotation of the screw.
0) and a recorder.