JPS61239980A - Recording apparatus - Google Patents

Abstract

PURPOSE:To make it possible to shift an ink ribbon regardless of ON/OFF of a power source and to perform the replacement of an ink ribbon in an extremely easy manner, by mechanically detect that the upper lid of a recording apparatus was opened and shifting the ink ribbon upwardly simultaneously with the opening of the upper lid. CONSTITUTION:When the shift-up operation of an ink ribbon is performed by a solenoid 15, shift operation is performed regardless of the side of a link lever 22. At the replacement time of the ink ribbon, the solenoid 15 is not operated and the ink ribbon 5 is brought to a shift-down state. When an upper lid 24 is opened in this state, a revolvable lever 19 is revolved by the tensile force of a spring 21 and the link lever 22 also moves upwardly and, because the tensile force of the spring 21 is larger than that of a spring 14, an operation lever 13 is revolved. As a result, the link lever 12 is revolved through an operation shaft 10 and the leading end sides of ribbon guides 6, 7 are raised through a link lever 8 and the ink ribbon 5 comes to a shift-up state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a recording device, and more particularly to a recording device that performs recording by hitting a recording element with a hammer through an ink ribbon onto recording paper wound around a platen. This relates to a recording device.

[Summary of the Disclosure] This specification and the drawings have a carriage that moves back and forth along a platen, and performs recording by striking a recording element with a hammer via an ink ribbon against recording paper wound around the platen. Technology that enables the ink ribbon mounted on the carriage side of a recording device to be shifted down and up from outside the carriage, thereby making it possible to shift the ink ribbon regardless of whether the power is on or off. This is to disclose.

[Prior Art] In conventional recording devices of this type, the ink ribbon is shifted up to perform recording only when recording, and the ink ribbon is shifted down at other times than when recording to check the recorded characters. It is configured so that it can be done.

For example, there is a structure in which the ink ribbon cassette remains fixed on the carriage side and only the ribbon led out from the cassette is shifted.

However, while adopting such a structure has the advantage of low noise, it is difficult to remove or install the ink ribbon from the ribbon guide in order to replace the ink ribbon while the ink ribbon is downshifted. It was extremely troublesome.

Therefore, a system was proposed in which a lever was provided to shift the ink ribbon, and the ink ribbon could only be shifted up when the user operated the lever, and the ink ribbon could be attached and detached. .

However, when such a structure is adopted, there is a problem in that the operation of replacing the ink ribbon is extremely troublesome because it requires the user to operate a lever.

Therefore, a configuration has been proposed in which when the user opens the top cover of the printing apparatus when replacing the ink ribbon, this is electrically detected and a solenoid or the like is driven to shift up the ink repository.

[Problem to be Solved by the Invention 1] However, although adopting such a structure has the advantage that it can be manufactured at low cost, it is not possible to electrically detect the opening and closing of the top cover when the power is off. Furthermore, there was a problem in that the ink ribbon could not be shifted up because a driving means such as a solenoid could not be driven.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention mechanically detects that the top cover of the recording device is opened and shifts the ink ribbon up at the same time as the top cover is opened. We have provided an interlocking mechanism that allows this.

[Function] When the above-mentioned structure is adopted, the ink ribbon is shifted up simply by opening the top cover, and since the upshift is performed by a mechanical mechanism, the ink ribbon can be replaced regardless of whether the power is on or off. can be done.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

Figure 1 and the following diagrams explain one embodiment of the present invention.
The figure shows the overall structure.

In FIG. 1, reference numeral l indicates a platen, and a carriage 2 is slidably fitted onto a guide shaft arranged parallel to the platen l.

An ink ribbon cassette 4 is removably provided on the carriage 2, and the ink ribbon 5 pulled out from one end of the ink ribbon cassette 4 is guided along the left and right sets of ribbon guides 6.7, and along the respective ribbon guides 6.7. 7
attached to guide pins 6a and 7a protruding from the tip of the
It is wrapped around the other end of the cassette.

The base ends of the ink ribbon guides 6.7 are connected by a shaft 6b extending through the carriage 2, as shown in FIG. 3, and the two ribbon guides 6.7 are configured to be interlocked.

Further, a hammer unit 27 is provided on the carriage 2, and a recording element 26 having a daisy wheel structure, for example, is attached to the end of the carriage 2 on the platen 1 side. The ink ribbon 5 described above is connected to this recording element 2.
6 and platen l.

On the other hand, the reference numeral 10 denotes an operating shaft, which has a non-circular cross section, for example, and is provided between the platen 1 and the guide shaft 3 in parallel with the platen 1 so that the carriage 2 can freely slide. Like the guide shaft 3, its both ends are rotatably supported between the side plates 11, 11 (one side plate is omitted) of the device.

By the way, there is a shaft 8 near the base end of one ribbon guide 6.
The upper end of the link lever 8 is rotatably supported via a shaft 8b, and the lower end of the link lever 8 is rotatably supported via a shaft 8b to one end of another link lever 12 arranged approximately horizontally. ing.

The other end of the link lever 12 is fitted to the operating shaft 10 so that it cannot rotate but is slidable.

On the other hand, one end of the operating shaft lO is connected to the operating lever 13 inside the side plate 11.

As shown in FIG. 2, the actuating lever 13 is formed into a substantially L-shape, and the actuating shaft 10 is fitted into its bent portion.

Further, a solenoid 15 is provided below the platen l at a position facing the operating lever 13, and the tip of its rod 15a is rotatably connected to one end on the back side of the operating lever 13 via a pin 15c. has been done.

Also, between the end of the actuating lever 13 connected to the rod 15a and the pin 14a protruding from the side plate on the opposite side of the solenoid 15, there are provided subs 1, 4, and 4. , actuation gives the bar 13.3 a clockwise rotational habit in FIG.

At the other end of the actuating lever 13, an arcuate long hole 13a is formed on the circumference around the actuating shaft 10.

A link lever 22 is arranged in a substantially vertical state above the side where the elongated hole 13a of the actuation lever 13 is formed, and its lower end is slidably fitted into the elongated hole 13a via the pin 18. has been done.

The upper end of the link lever 22 is rotatably connected to the free end side of the rotary lever 19 via a pin 23.

The other end of the rotating lever 19 is located at a position corresponding to the end of the operating lever 13 on the solenoid 15 side.
It is rotatably supported above the bottle 20 via a bottle 20.

A projecting piece 19a is provided below the end of the shaft 2o# of the rotating lever 19.
A bottle 2 is protruded from the projecting piece 19a and the side surface of the side plate 11 at a position substantially opposite to the bottle 14a.
A spring 21 is stretched between the lever 1a and the pivot lever 19, giving the pivot lever 19 the ability to pivot counterclockwise in FIG.

Note that the tensile force of the spring 21 is set larger than that of the spring 14.

On the other hand, the reference numeral 24 is a cover of the recording apparatus, which is provided on the main body side of the apparatus so as to cover the platen and the carriage so as to be openable and closable. A projecting piece 25 is provided in a protruding manner. As shown in FIG. 2, this projecting piece 25 is provided so as to be in contact with the upper side near the tip of the rotary lever 19 when the upper lid 24 is closed.

Next, the operation of this embodiment configured as above will be explained.

When the top lid 24 is closed and the solenoid 15 is not activated, that is, when the recording device is not in use, the rod 15a is free and the actuation lever 1
3 is in the state shown by the solid line in FIG. 2 due to the tensile force of the spring 14.

At this time, the upper surface of the free end side of the rotating lever 19 is pressed by the protruding piece 25 of the upper cover 24, and the rotating lever 19 is rotated clockwise in FIG. 2 against the tensile force of the spring 21. As a result, the link lever 22 is also lowered.

However, since the operating lever 13 is rotated in the second middle clockwise direction, the bottle 18 is located at the end of the elongated hole 13a.

In this state, as shown in FIG. 3, the link lever 12 is in a substantially horizontal state, and the link lever 8 is also lowered.As a result, the tips of the left and right ribbon guides 6.7 are also lowered, and the stopper 28 The ink ribbon 5 is in a downshifted state.

By the way, when a recording operation is started in this state, the solenoid 15 is excited in accordance with the recording command, and the rod 15 is retracted.

As a result, the operating lever 13 is rotated counterclockwise in the figure against the tensile force of the spring 14, as shown by the chain line in FIG.

Therefore, it is rotated counterclockwise in the same manner as the operating shaft 1o having a non-circular cross section.

As a result, the link lever 12 is rotated counterclockwise as shown in FIG. 4, and the link lever 8 is raised.

As a result, the ribbon guide 6.7 is also raised to a nearly horizontal state, and the ink ribbon 5 is shifted up and placed at the recording position.

Recording is performed in this state.

By the way, when the ink ribbon is shifted up by the solenoid 15, the operating lever 13 is rotated counterclockwise in FIG. The ink pump 18 only moves in the elongated hole 13a and does not apply upward force to the link lever 22. In other words, the shift operation of the ink pump is performed independently of the link lever 22 side.

On the other hand, when replacing the ink ribbon, the solenoid 15
is not operated, the operating lever 13 is in the state shown by the solid line in FIG. 2, and the ink ribbon 5 is in the third position.
As shown in the figure, it is in a downshifted state.

When the upper cover 25 is opened in this state, the rotation lever 19 is rotated counterclockwise in FIG. 2 by the tension of the spring 21, the link lever 22 is also moved upward as shown in FIG. Since the tensile force of the spring 21 is greater than the tensile force of the spring 21, the first operating lever 13 is rotated counterclockwise as shown by the chain line in FIG.

As a result, the link lever 12 is moved to the fourth position via the operating shaft IO.
As shown in the figure, it is rotated counterclockwise in the figure, and the tip side of the ribbon guide 6°7 is raised via the link lever 8.
The ink ribbon 5 is shifted up.

In this state, the ink ribbon 5 can be replaced freely.

By providing a mechanical interlocking mechanism in this way,
By simply opening the top lid 24, the ink ribbon can be shifted and replaced regardless of whether the power is turned on or off.

[Effects] As is clear from the above description, according to the present invention, a structure is provided in which an interlocking mechanism is provided to shift the ink ribbon up and down as the top cover of the recording device is opened and closed. The ink ribbon can also be shifted regardless of whether the ink ribbon is on or off, making it extremely easy to replace the ink ribbon.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view illustrating the overall structure of the main parts, Fig. 2 is a stop view showing the interlocking relationship of the operating lever, and Fig. 3 is an ink valve. FIG. 4 is a side view illustrating the downshift state of the ribbon, and FIG. 4 is a side view illustrating the upshift state of the ink ribbon. 1...Platen 2...Carriage 4...
Ink ribbon cassette 5... Ink ribbon 6, 7... Ribbon guide 8
．． 12.22... Link lever 10... Actuation shaft 13... Actuation lever 15.
...Solenoid 14.21...Spring 23.
...Rotating lever 24...Top lid 25...Protrusion piece
27... Hammer unit 26... Recording element

Claims (1)

[Claims] 1) A recording device that has a carriage that is slidably disposed along a platen, and that an ink ribbon mounted on the carriage is wound around the platen by hitting a recording element with a hammer. A recording apparatus for recording on paper, characterized in that a ribbon guide for guiding an ink ribbon is rotated up and down via an interlocking mechanism interlocked with a top lid of the apparatus to perform an ink ribbon shifting operation. Device. 2) The interlocking mechanism consists of an operating shaft that is slidably provided parallel to the platen and penetrating the carriage, an operating lever that is provided at one end of this operating shaft, and a link lever that operates when the top cover is opened and closed. The record according to claim 1, characterized in that the recorder comprises a rotating lever that rotates the operating lever, and the operating shaft is configured to be in an interlocking relationship with a link lever that rotates the ribbon guide. Device.