JPS6213806Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a wire printer, and its purpose is to enable accurate printing without using an ink ribbon and to improve printing speed by shortening the wire stroke. be.

Conventionally, Japanese Utility Model Publication No. 53-2652 has been known as a wire printer that does not use an ink ribbon.
The wire is moved backward from the ink-impregnated material, and as it moves forward, ink is applied to the tip of the wire. However, as the wire moves forward, the wire tip tends to damage the ink-impregnated material, and this damaged ink-impregnated material Some of the waste may become clogged, or
There was a risk that it would adhere to the printing paper and make the print unclear.

In the present invention, an ink storage part is arranged inside the wire holding part so that ink can be supplied from the outside, and the wire is inserted through the ink storage part from the rear end of the wire holding part, and the wire is inserted into the ink storage part from the rear end of the wire holding part. An ink reservoir is formed on the outer periphery of the wire between the formed wire guide part and the ink storage part, and communicates with the ink storage part and the wire guide part, so that the tip of the wire is located forward of the tip of the ink storage part when the wire is drawn in, This method eliminates the drawbacks of the conventional method by supplying ink to the tip of the wire mainly through an ink reservoir.

Next, an embodiment of the present invention shown in the accompanying drawings will be described in detail. An ink storage section 2 is disposed within the wire holding section 1 and houses an ink storage body 2a made of a porous elastic material such as urethane, felt, or a synthetic fiber bundle. Reference numeral 7 denotes wires, and seven wires are vertically disposed so as to be able to slide freely through the ink storage section 2 from the rear end of the wire holding section, and the rear end 7a of the wires 7 is connected to the plunger of each solenoid 8. It is fixed to a movable plate 9. A wire guide section 4 made of a wear-resistant hard material such as ruby is formed at the tip of the wire holding section 1, and an ink reservoir section 3 is formed on the outer periphery of the wire 7 between the ink storage section 2 and the wire guide section 4 to store ink. It communicates with the storage section 2 and the wire guide section 4, and when the wire 7 is retracted, the tip of the wire 7 is positioned in front of the tip of the ink storage section 2. The ink reservoir 3 may be provided with a groove 3' as shown in FIG. Reference numeral 5 denotes an ink tank, and the ink in the ink tank 5 is supplied to the ink storage body 2a through an ink pipe 6. If it is desired to increase the amount of ink supplied to the tip 7b of the wire 7, it is better to position the tip 7b of the wire inside the ink reservoir 3 from the position shown in FIG. 10 is a platen, and 11 is printing paper.

Next, the effect will be explained. When not printing, the wire tip 7b is submerged between the tip of the wire guide section 4 and the ink storage body 2a, as shown in FIG. 2, and does not reach the ink storage body 2a. At this time, the wire tip 7b, the ink reservoir 3, and the outer periphery of the wire 7 corresponding to the ink reservoir 3 are filled with ink. Next, when the solenoid 8 is activated, the wire tip 7b and the outer periphery are covered with ink, and the fourth
As shown in the figure, the tip 7b protrudes and comes into contact with the printing paper 11 to perform printing. Next, as shown in FIG. 2, when the wire tip 7b sinks inward from the tip of the wire guide section 4, the ink supplied to the ink reservoir section 3 is subjected to vibration due to the sliding of the wire 7 that occurs when it is retracted. Ink is supplied to the outer periphery of the wire 7, and the wire tip 7b is also filled with ink. Repeat this action.

Incidentally, ink is also supplied directly to the outer periphery of the wire 7 from the ink occlusion body 2a, although the amount is small.

In the present invention, an ink storage part is arranged inside the wire holding part so that ink can be supplied from the outside, and the wire is inserted through the ink storage part from the rear end of the wire holding part, and the wire is inserted into the ink storage part from the rear end of the wire holding part. An ink reservoir is formed on the outer periphery of the wire between the formed wire guide part and the ink storage part, and communicates with the ink storage part and the wire guide part, so that the tip of the wire is located forward of the tip of the ink storage part when the wire is drawn in, Since ink is supplied to the tip of the wire mainly through the ink reservoir, the ink storage body is not damaged by the wire, and therefore, accurate printing is possible without clogging. In addition, the stroke of the wire can be made shorter than before, and the printing speed can therefore be improved.

Incidentally, the present invention can also be applied to the printing section of facsimile machines, plotters, and the like.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention;
Figure 2 is a cross-sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
4 is a view when the wire of FIG. 2 is protruded, and FIG. 5 is another embodiment corresponding to FIG. 3. 1... Wire holding part, 2... Ink storage part, 2
a... Ink storage body, 3... Ink reservoir, 4...
Wire guide portion, 7...wire, 7b...tip of wire.

Claims (1)

[Scope of utility model registration request] An ink storage part is disposed inside the wire holding part so that ink can be supplied from the outside, and the wire is inserted through the ink storage part from the rear end of the wire holding part, and the wire guide is formed at the tip of the wire holding part. A wire printer in which an ink reservoir is formed on the outer periphery of the wire between the ink storage section and the ink storage section, and communicates with the ink storage section and the wire guide section, so that the tip of the wire is located in front of the tip of the ink storage section when the wire is drawn in.