JPH0477250B2 - - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention includes a recording mechanism that records on recording paper using a recording pen, and a ribbon cassette that is assembled to print a predetermined mark on recording paper using a print head. The present invention relates to a recording/printing meter equipped with a printing mechanism, and more particularly to a recording/printing meter in which the ribbon cassette of the printing mechanism is made smaller and has improved loadability.

<Conventional technology> The conventional technology will be explained below with reference to the drawings.

FIG. 5 is a schematic configuration diagram of a conventional recording/printing meter, and FIG. 6 is a diagram for explaining the conventional technology.

In Figs. 5 and 6, 1 is a folding recording paper (of course, there are other types), which is mainly used for easy viewing of recorded data and has sprocket holes in both ears, which is used in pen-type recorders. (hereinafter referred to as "chart"), 2 is a chart storage section for storing the chart 1 before recording, and 3 is a sprocket 3a.
It is a platen that has on both sides. The chart 1 is wound up with a sprocket hole engaged with a sprocket 3a and moved on a platen, and measured values are recorded by a recording pen (hereinafter referred to as "pen") 4 constituting a recording mechanism. 5 is recorded chart 1
This is the chart stock section that stores the 6 is a dot type printing mechanism using a ribbon cassette, that is,
This is a printing mechanism in which a ribbon cassette 6a is assembled and a predetermined print is made on the chart 1 using a printing head such as a wire dot head 6b. This printing mechanism is provided to print characters separately from the pen 4 because the pen 4 writes continuously horizontally, and it prints information such as digital measurement values, time, alarms, etc. along with input trends. I can do things. FIG. 6 shows these various printing mechanisms. FIG. 6A shows a structure in which a ribbon cassette 61a for storing color ribbons is mounted on a wire dot head and carriage 61b in order to distinguish and record multi-point input by color. Figure B shows the ribbon cassette 62a in chart 1.
The wire dot head 6 is set in the width direction of the wire dot head 6 by swinging the ribbon cassette 62a for color differentiation.
A structure that hits 2b. In the same figure, C is the ribbon reel 63.
This shows the structure in which a is attached to the left and right. In addition to such a mechanism, there is a printing mechanism that uses thermal paper on a chart and prints on it with a thermal head.

<Problems to be Solved by the Invention> By the way, the printing mechanism of this conventional recording/printing meter has the following problems.

In the structure shown in FIG. 6A, a feed motor is generally mounted for feeding the ribbon, which increases the size of the entire carriage and increases the load on the carriage drive motor. Furthermore, when the carriage moves from side to side, the width of the ribbon cassette increases, so the effective printing width becomes small.

:The structure shown in Figure B is lighter because only the wire dot head is mounted on the carriage.
Although the capacity (length) of the ribbon can be increased, on the other hand, the cassette becomes larger, which deteriorates the space factor, and the manufacturing cost of the cassette naturally increases because the mold becomes larger.

: Although the structure shown in Figure C has a low manufacturing cost, it does not allow the ribbon to be made into an endless structure, and in addition, when setting the ribbon, the ink ribbon part is handled by hand, which makes the hands dirty. I can't do one touch set.

: In the structure where thermal paper is used for the chart and printed with a thermal head, the thermal paper is expensive and the running cost is high. Therefore, it is not practical when using a large quantity of charts.

The present invention was made in view of the problems of the conventional technology, and in order to have a structure that allows the printing mechanism to be installed in a small space, the entire printing mechanism is downsized and the ribbon cassette is easily replaced (loaded). It is an object of the present invention to provide a recording/printing meter that is simplified and furthermore allows a large effective printing width.

<Means for Solving the Problems> To achieve the above-mentioned object, the present invention has a recording mechanism for recording on recording paper using a recording pen, and also includes a ribbon cassette assembled and a print head for recording the information on the recording paper. In a recording/printing meter equipped with a printing mechanism for printing a predetermined character on recording paper, a pair of ribbon ejecting arms 64a ₁ is provided in the transverse direction, and a receiving hole 64a ₂ for ribbon feeding is provided at the rear position of the ribbon ejecting arms. Ribbon cassettes 64a with arms each provided with
and the ribbon cassette is provided so as to be removably assembled at one end in the width direction of the recording paper,
a ribbon feeding mechanism consisting of a gear 64e that latches into a receiving hole of the ribbon cassette to feed the ribbon 64c in the cassette, and a ribbon feeding motor 64f coupled to the gear; It consists of an idler pulley 64d installed at the opposite end to set the ribbon pulled out from the ribbon cassette to a predetermined width δ, and a printing head 64b placed between the idler pulley and the ribbon cassette and running within the width of the ribbon. It is characterized by this.

<Examples> Examples of the present invention will be described in detail below based on the drawings. In addition, in the following drawings, figures 5 to 6
Parts that overlap with those in the figures are given the same numbers and their explanations will be omitted.

FIG. 1 is a top view showing a specific embodiment of the printing mechanism of the present invention used in a multi-pen recording/printing meter (pens are omitted), and FIG. 2 is a specific example of the recording/printing meter of the present invention. XX cross-sectional view of FIG. 1 showing an embodiment,
FIG. 3 is a diagram for explaining the present invention.

In FIGS. 1 to 3, the printing mechanism 60 of the present invention is arranged behind a group of pens 40 (here, a multi-pen case is shown, but a single pen structure may also be used) that records input waveforms. (Positionally installed between the chart storage section 2 and the pen group 40). This printing mechanism 60 stores a ribbon 64c inside and has a pair of ribbon ejecting arms 64 whose distance from each other in the transverse direction (the exposed length of the ribbon) is τ.
a ribbon cassette 64a with an _arm ,
When setting the arm-equipped ribbon cassette 64a, the ribbon 64 is removed from the ribbon ejecting arm _64a1 .
In this case, a pair of idler pulleys 64d (the width δ is the width of the pair of It is narrower than the width τ of the ribbon ejecting arm _64a1 , so that the arm does not hit this idler pulley 64d during insertion.Therefore, if the width δ can be maintained, it should be made of a circular or rectangular shape. )
For example, a wire dot head 64, which is a printing head that is accommodated within the width δ of the ribbon 64c pulled out by the idler pulley 64d and runs.
It consists of b. _64a2 is a receiving hole for feeding the ribbon, and when a cassette is set and loaded through this receiving hole _64a2 , the feeding portion in the receiving hole _64a2 is connected to the ribbon feeding motor 64f via a gear 64e.
Connect to. At this time, the ribbon cassette 64a with an arm is attached to the position of the stone side plate S in the figure of the recording/printing meter main body, with only the ribbon 64c being stretched by the width of the chart, and the ribbon 64c is attached to the idler pulley 6.
It is hooked to 4d. That is, ribbon loading is performed with the arm-equipped ribbon cassette 64a removed, but since it is located at the back of the instrument, hold the arm-equipped ribbon cassette 64a in your hand and insert it into the idler pulley 6.
4d, pull the cassette to the right (at this time, the ribbon 64c will extend in the direction shown by arrow F in FIG. 3), and then insert the cassette receiving hole 64a ₂
(latch mechanism omitted). When the ribbon is set in the receiving hole _64a2 and loading is completed, the ribbon is fed by connecting the ribbon feed motor 64f to the gear via the gear 64e. The printing operation of the wire dot head 64b is performed by running left and right between the upper and lower portions of the ribbon 64c. The pen group 40 can move freely in the chart width direction indicated by arrows α and β, and the wire dot head 6
4b can also run freely in the chart width direction.

By the way, the present invention is not limited to a configuration in which printing can be performed over the entire width of the chart (pen and span) as shown in FIG. 1, but may be configured as shown in FIG. 4. .

FIG. 4 is a diagram for explaining another embodiment of the present invention.

In FIG. 4, by limiting the print width, the ribbon cassette 64a with an arm may be housed inside the main body and a portion thereof may be placed on the chart, instead of being incorporated into the right side panel. Since it is not necessary to print over the entire area of the chart 1, there is no practical problem with this configuration.

<Effects of the Invention> As described above in detail with reference to the embodiments, according to the recording/printing meter of the present invention: Ribbon loading is performed when the ribbon is loaded between the ribbon ejecting arms of the ribbon cassette with an arm. Since it is exposed, you can easily hook it onto the idler pulley with one hand, stretch the ribbon, and set it on the right side.

: Since there is only ribbon before and after the print head, it can be made smaller without taking up much space. Furthermore, since the ribbon cassette is not mounted on the carriage, the carriage can also be made smaller and drive efficiency is improved.

: When the print head runs in the chart width direction, the carriage can enter up to the ribbon ejecting arm, so the effective print width can be increased.

: The cylindrical body of the ribbon cassette is molded from plastic resin, and since the cassette can be made smaller, the cost of the molding die and the cost of the product itself can be reduced.

There are effective effects for realizing various things such as.

[Brief explanation of the drawing]

FIG. 1 is a top view showing a specific embodiment of the printing mechanism of the present invention, FIG. 2 is a sectional view taken along line XX in FIG. 1, FIG. 3 is a diagram for explaining the present invention, and FIG. FIG. 5 is a diagram for explaining another embodiment of the present invention, FIG. 5 is a schematic diagram of a conventional recording/printing meter, and FIG. 6 is a diagram for explaining a conventional technique. 1... Folding recording paper (chart), 3...
Platen, 4... Recording pen (pen), 5... Chart stock section, 6, 60... Printing mechanism, 64a
...Ribbon cassette with arm, 64a ₁ ...Arm for taking out ribbon, 64c...Ribbon, 64d...
idler pulley.

Claims (1)

[Claims] 1. In a recording/printing meter that has a recording mechanism that records on recording paper using a recording pen, and a printing mechanism that uses a printing head to print a predetermined character on the recording paper with a ribbon cassette installed, A ribbon cassette 64a with an arm is provided with a pair of ribbon ejecting arms _64a1 in the direction in which a receiving hole _64a2 for ribbon feeding is provided at the rear position of the ribbon ejecting arms, and one end in the width direction of the recording paper. A gear 64e is provided so that the ribbon cassette is removably assembled therein, and a gear 64e latches into a receiving hole of the ribbon cassette to feed the ribbon 64c in the cassette.
and a ribbon feeding mechanism consisting of a ribbon feeding motor 64f coupled to the gear, and a ribbon feeding mechanism installed at the other end in the width direction of the recording paper facing the ribbon feeding mechanism, and the ribbon drawn out from the ribbon cassette is moved to a predetermined width δ. Idler pulley 64d to set with
and a printing head 64b disposed between the idler pulley and the ribbon cassette and running within the width of the ribbon.