JPH0110214Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a paper feeding mechanism of a dot printer for a call management device operation console.

2. Description of the Related Art In recent years, devices that use texts, simple pictures, etc. to communicate in place of telephone calls have become increasingly popular. Along with this, various improvements have been discovered.

This will be explained below based on the drawings.

(Prior Art) FIG. 1 is a side view showing a conventional example of a paper feeding mechanism.

In the figure, 1 is the printer, 2 is the platen, and 3 is the printer.
is a printer head, and the printer head 3 is installed at a position facing the platen 2. These constitute the printing part and are housed within the frame of the device, although not shown.

Reference numeral 4 designates a printer cover that is attached to the device frame (not shown) so that it can be opened and closed; 5 designates an opening provided in the print cover 4 to take out a recorded portion of recording paper, which will be described later, from the device; its position is similar to that of the printer head 3; It is almost directly above the position facing the platen 2.

Reference numeral 6 denotes a paper cutter for cutting a recorded portion of the recording paper, which will be described later, and is provided in the opening 5.

Reference numeral 7 denotes a roll-shaped recording paper that is printed on by the printer head 3 and is housed in the device.When the recording paper 7 passes through the platen 2 of the printer 1, it is printed on by the printer head 3, and when it passes through the printer cover 4 opening 5
is discharged from.

Cut it with a paper cutter 6.

However, with such a configuration, the following drawbacks arise when the leading edge of the recording paper 7 is discharged into the opening 5.

This is because when the roll of recording paper is consumed to a certain extent, the diameter of the roll becomes smaller, so the shape of the roll remains strongly on the recording paper 7.

As a result, the rolled end of the recording paper 7 avoids the opening 5 and passes through the printer 1 and the printer cover 4.
A jam occurs in the gap between the two.

In order to avoid this, it is necessary to open the printer cover 4 each time after cutting the recorded recording paper 7 with the paper cutter 5 so that the leading edge of the recording paper 7 protrudes from the opening 5.

(Purpose of the invention) Therefore, the present invention solves the drawbacks of the conventional method by providing a guide plate that guides the leading edge of the recording paper to the opening of the printer cover so that the recorded recording paper is always ejected out of the device. The purpose is to

(Structure of the idea) Its characteristic configuration is as follows.

A guide plate that is bent along the back of the platen and has one end extending toward the opening of the print cover is installed in close contact with the platen, with a cushioning material interposed and supported by a shaft attached to the printer frame. It is something that

(Example) An example of the present invention will be described below based on the drawings. Incidentally, since it is almost the same as the conventional printing section, the same reference numerals as in the conventional example are used for its parts.

Fig. 2 is a side view of a paper feeding mechanism showing an embodiment of the present invention, Fig. 3 is an enlarged explanatory view thereof, Fig. 4 is a side view of a guide plate and cushion, the same figure is a rear view thereof, and the same figure is a It is a perspective view of the shaft which supports a guide plate.

In the figure, 1 is the printer, 2 is the platen, and 3 is the printer.
4 is a printer head, 4 is a printer cover, 5 is an opening, 6 is a paper cutter, and 7 is a roll of recording paper.

A thin guide plate 8 guides the leading edge of the recording paper 7 to the opening 5, and the guide plate 8 is connected to the platen 2.
It is bent into a shape that follows the back surface of the opening 5, and one end thereof extends toward the opening 5, and the extended end is long enough to reach the opening 5 without protruding beyond the opening 5.

A cushion 9 is bonded to the guide plate 8.

A shaft 10 supports the guide plate 8, and the shaft 10 supports the guide plate 8 and is attached to the frame of the printer 1.

Recording paper 7 in an embodiment of the present invention as described above
The printing is performed in the same manner as in the conventional case, but the leading edge of the recording paper 7 thereafter comes into contact with the guide plate 8, is always guided to the opening 5, and is ejected out of the apparatus.

Next, the mounting state of this guide plate 8 will be explained.

As shown in FIG. 3, the guide plate 8 is supported by a shaft 10 attached to the frame of the printer 1 via a cushion 9. As shown in FIG.

To install it, first, the shaft 10 is installed on the frame of the printer 1, and a guide plate 8 having a cushion 9 is installed between the shaft 10 and the platen 2.
, connect the cushion 9 to the platen 2 and shaft 1.
Press fit between 0 and install.

Then, the cushion 9 absorbs the difference in angle due to some manufacturing error between the platen 2 and the guide plate 8, and the guide plate 8 can be attached closely to the platen 2.

When a force is applied from the front of the guide plate 8, that is, from the feeding direction of the printed recording paper 7, the force becomes a force in the direction of the shaft 10 at the upper part where the guide plate 8 and the platen 2 are in contact. On the other hand, in the lower part, a force acts in two directions on the platen.

Contrary to the above, the force from the back surface of the guide plate 8 is applied to the platen 2 at the upper part where it contacts the platen 2.
In the lower part, a force acts in the direction of the shaft 10.

In addition, the above-mentioned force action also produces a reaction, so that the guide plate 8 is supported so that it cannot easily slip out under normal conditions.

(Effects of the invention) As explained above in detail, this invention has the effect of guiding the leading edge of the recording paper in any state to the aperture by the guidance of the guide plate. Even if the roll shape that is strong against corrosion remains, there is no need to take the trouble of setting the leading end of the recording paper to protrude outside the opening.

Further, it is also effective that the number of parts required for installing the guide plate is small, and that the structure can be constructed without making many changes to the conventional printing section.

Due to these effects, if the present invention is adopted in a paper feeding mechanism such as a dot printer, it can greatly improve the performance of the device.

[Brief explanation of the drawing]

Figure 1 is a side view showing a conventional paper feeding mechanism;
3 is an enlarged side view of the paper feeding mechanism according to an embodiment of the present invention. FIG. 4 is a side view of the guide plate and cushion. is a rear view thereof, and the same figure is a perspective view of the shaft. 1... Printer, 2... Platen, 3... Printer head, 4... Printer cover, 5... Opening, 6... Paper cutter, 7... Recording paper, 8...
Information board, 9...cushion, 10...shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A paper feed mechanism for a dot printer that continuously supplies recording paper to a printing unit consisting of a printer head and a platen, and discharges the recording paper after printing by the printer head from an opening in a printer cover. The upper part of the surface of the platen facing the printer head is bent and inclined toward the opposite side of the printer head, and a guide plate is provided which is bent to follow the shape of the back surface of the platen and whose upper end extends to the opening of the printer cover. A paper feeding mechanism for a dot printer, characterized in that the lower part of the guide plate is supported by a shaft attached to the frame of the printer parallel to the platen via a cushion so as to be in close contact with the back surface of the platen.