JPS5920693A - Printer - Google Patents

Abstract

PURPOSE:To provide the titled apparatus which reduces noise during the adjusting work in the initial printing period after the opening of a top cover by preventing an impact sound generated during the printing with a soundproof cover over a printing paper covering the entire width of both side plates supporting a tractor. CONSTITUTION:A soundproof cover 18 is provided over a printing paper 14 covering the entire width of side plates supporting a tractor 17 to reduce an impact sound generated between a hammer 16 and a platen 17 when an adjusting work is done in the initial printing period. The soundproof cover is preferably transparent to observe the printing condition. When said cover is arranged freely to open or close, even when the top cover 3 is closed with the cover (b) left open, a space between the cover and the top cover 3 does not cause interference and a paper path (c) is built up with a paper guide 21 on the side of the equipment and the soundproof cover 18 to privide an effect of guiding a paper 14.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to an impact printer, and more particularly to a printer having a soundproof cover inside the printer to reduce noise generated during printing.

(b) Prior art and problems As a conventional impact printer, for example, 81
! There is a line printer device 1 as shown in FIG.

In the figure, l is a line printer device, 2 is a mouth ν force, and 3 is a line printer device.
is the top cover, 4 is the swing gate, 5 is the right side plate, 6
is the left side plate, 7 is the tractor, 8 is the coarse adjustment knob, 9 is the fine adjustment lever, 1o is the paper thickness adjustment knob, 11 is the mechanical cover, 1
2 is an auto hinge, and 13 is a hopper cover.

The line printer family R1 usually has 136 printing digits.
Therefore, during printing, considerable noise is generated due to the impact force of the hammer. Therefore, each part of the apparatus is housed inside a locker 2, and the upper part of the locker 2 is covered and sealed with a top cover 3 to reduce the noise.

At the beginning of actual printing, when paper is set in the device and printing is started, the printing condition is checked, such as whether the beginning of the paper or the printed characters are at the printing position. Feed hacks and Gods adjustments are made. For example, you can use the rough adjustment knob 8 to move the tractor 7 to completely move the paper, use the fine adjustment lever 9 to finely adjust the print position, and use the paper thickness adjustment knob 101 to adjust the print density, etc. In many cases, the IC structure is such that adjustment cannot be made without opening the top cover 3. Therefore, when the top cover 3 is opened, the loud noise generated between the hammer (not shown) and the platen (not shown) during printing can be heard directly and it is very difficult to bear the above-mentioned adjustment work.

(c) Object of the Invention The object of the present invention is to provide a printer device equipped with a soundproof cover that reduces the impact noise generated between the hammer and the platen during printing during adjustment work performed at the initial stage of printing. be.

(d) Structure and object of the invention According to the present invention, the upper part of the locker is covered with a top cover that can be opened and closed, and a tractor for transporting the inside of the locker, the printing part, the hammer part, and the printing part. This is achieved by providing an impact type printer equipped with a cover that covers the printing paper over the entire width of both side plates that fully support the front two tractors.

(e) Examples of the invention Embodiments of the present invention will be described in detail below with reference to the drawings.

2 to 4 are diagrams for explaining one embodiment of the printer device of the present invention, in which FIG. 2 is a perspective view of the device, FIG. 3 is a sectional view of the inside of the device, and FIG. 4 is a perspective view of a soundproof cover. It is.

In FIG. 2, a soundproof cover 15 is provided so as to cover the printing paper 14 over the entire width of the side plates 5 and 6 that support the tractor 7 of the printer device 1 shown in FIG.

By providing the soundproof cover 15 inside the apparatus in this way, when the top cover 31 is opened to perform adjustment work at the initial stage of printing (see FIG. 3), the impact noise generated between the hammer 16 and the platen 17 can be avoided. 4t, and the sound emitted from the vicinity of the tractor 7, which was conventionally exposed, is reduced by sealing the exposed portion of the soundproof cover 151 of the present invention. (Reduced by about 15 db compared to the conventional one) Note that the soundproof cover 15 is adjusted at the initial stage of printing, so
Transparent is desirable so that the printed state can be seen. Furthermore, if printing is performed with the top cover 3 closed, a double cover is created and the soundproofing effect of the apparatus is increased.

The above embodiment can be achieved by inserting the soundproof cover 15 into the tractor support side plate 56, but it is also possible to install rotary hinges 21' on the left and right sides of the soundproof cover 18, as shown in FIG. The left and right tractor support side plates 5 (see Fig. 2)
．． 6 is provided with a hole (not shown), and the rotation hinge hole 19 is connected to the hole (not shown).
Connected by t-axis to enable rotation.

When the printing paper 14i is attached to the device, the soundproof cover 18i is opened upward as shown by the dotted line in FIG. Note that the stopper for the closing direction of the soundproof cover 18 may be a simple method of providing protrusions on the tractor support side plates 5 and 6. 20 indicates a type belt. Furthermore, even if the top cover 3' is closed with the soundproof cover 18 open as shown by the dotted line in FIG. Paper guide 21 on the device side
A slotted paper path C is formed by the soundproof cover 18 and has the effect of guiding the paper 14.

When the top cover 3 is opened to perform adjustment work at the initial stage of printing, the soundproofing cover 151 covers the exposed area around the tractor 7 to reduce the noise generated during printing. Noise is like before
This is no longer unbearable. Moreover, when the soundproof cover 15 is open, it also has the effect of functioning as a paper guide.

(B) Effects of the Invention As explained in detail above, the printer device of the present invention is provided with a cover that covers the printing paper over the entire width of both side plates supporting the tractor, so that the noise generated during printing is soundproofed. As a result, the noise is no longer unbearable when the top cover is fully open to perform initial printing adjustment work, as was the case in the past.

In addition, when the soundproof cover is open, the paper guide 1 has the effect of being crushed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view for explaining the outline of a conventional printer device, FIG. 2 is a perspective view for explaining one embodiment of the printer device of the present invention, and FIG. 3 is another embodiment of the present invention. FIG. 4 is a perspective view illustrating the opening/closing operation of the soundproof cover shown in FIG. 3. In the figure, 1' is a printer device, 2 is a locker, 3 is a top cover, 4 is a swing gate, 5 and 6 are side plates, 11
! :! A mechanical cover, 12 an auto hinge, 15 and 18 a soundproof cover, 16 a hammer, 17 a tractor, 18 a soundproof cover, 19 a hole, 20 a type belt, and 21 a rotating hinge. 7th catty 2nd figure 753

Claims (2)

[Claims] (1) In an impact type printer device, the upper part of the locker is covered with a top cover that can be opened and closed, and the inside of the S locker is equipped with a printing section and a tractor for transporting printing paper, in which the printing section is transported by the tractor to the printing section. A printer device characterized by being provided with a cover that covers the entire width of printing paper. (2) The above-mentioned cover can be opened and closed, and the nuclear force bar in the open state constitutes a paper guide that guides all the printed paper conveyed by the tractor.
- The printer device according to claim 1, wherein the % mark is expressed as a percentage.