JPS6342332Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a thermal pen recorder.

This type of recorder uses thermal recording paper with a colored base paper coated with wax, or thermal recording paper that chemically colors when heat energy is applied, and a thermal pen is applied to the recording paper. In the former case, the wax is melted and the colored base paper is exposed, and in the latter case, data such as measured values are recorded on the recording paper by chemically developing the color. . Conventionally, as shown in FIG. 1, a single thermal pen 1 is moved along the horizontal axis 2 on the surface of the thermal recording paper 3, and as shown in FIG. On the front side of the recording paper 3, a plurality of thermal pens 1a, 1b, .
The heads 4 arranged in a row are fixedly provided in a direction perpendicular to the feeding direction P of the thermal recording paper 3, and one of the thermal pens 1a, 1b... is selectively heated according to data. The most common method is to

By the way, when performing analyses, measurements, etc., it is often necessary to check the values at the same time as recording them, or to write notes near the recording points regarding various data such as the ambient temperature and the type of sample used. However, with the recorder of the type shown in Fig. 1, it is possible to check the recorded value at the instant of recording, but when writing various data, the recorder is located on the front side of the recording paper 3, which is the writing surface. In addition, the thermal pen that moves in response to data fluctuations becomes a nuisance, and if the thermal pen suddenly moves due to changes in recorded values, it becomes impossible to write and also prevents recording with the thermal pen.

In addition, for the recorder of the type shown in Figure 2,
Since the head section 4 on which the thermal pens 1a, 1b, etc. are installed is also fixed on the surface side of the recording paper 3, the recorded value at the instant of recording by the thermal pens 1a, 1b, etc. remains unchanged for a while at the head section. 4, instantaneous confirmation and writing are impossible at the time of recording, and a time lag inevitably occurs.

In view of these points, it is an object of the present invention to provide a new and useful thermal pen recorder that can extremely easily record, confirm values, and write various data at the same time.

In order to achieve this objective, the thermal pen type recorder according to the present invention has a rod-shaped head having a plurality of thermal pens arranged on the back side of thermal recording paper in a direction perpendicular to the feeding direction of the recording paper. by fixing a part over the entire width of the recording paper and supplying heat to the recording paper from the back side with the thermal pen,
It is characterized in that it is configured to record data on the recording paper.

Next, an embodiment of the present invention will be described with reference to FIGS. 3 and 4. 5 is a recording paper feeding section in which a heat-sensitive recording paper 10 is wound into a roll, and the portion becomes colored when heat energy is applied; The take-up roller 7 is a recorder frame that pivotally supports the feeding section 5 and the take-up roller 6. Reference numeral 8 denotes a head section, which is laid on the back side of the thermal recording paper 10 between the feeding section 5 and the take-up roller 6, over the entire width of the recording paper 10 in a direction perpendicular to the feeding direction P of the recording paper 10. It is set up in the same condition. As shown in FIG.
...are arranged in a row. Each thermal pen 9 is configured to selectively generate heat according to data such as measured values by a drive circuit that is electrically connected to the head section 8 through a connector or the like. The area where the hot pen comes into contact becomes colored.

Note that the thermal energy of the thermal pen 9 selected by the drive circuit acts on the front surface of the thermal recording paper 10 through the back surface, so the thermal energy transferred to the surface by the temperature gradient due to heat loss of the recording paper 10 is However, if you reduce the thickness of the base paper of the recording paper, increase the heat generation current of the drive circuit accordingly, or use a thermal pen 9 with a high heat generation temperature, the base paper can be used as a thermal recording paper. Paper with wax applied to the surface can also be used.

As is clear from the detailed description above, the thermal pen recorder according to the present invention has the following excellent effects.

In other words, in the field of heat-sensitive recording recorders, in which data is recorded by heating heat-sensitive recording paper from the back side of the paper, we have adopted an unexpected method that was completely unthinkable in the past. On the surface side of the recording paper, there is not only a thermal pen and a head equipped with it, but also nothing else that would interfere with checking the recorded instantaneous value or writing notes on the surface of the recording paper. This makes it easy to check the instantaneous values being recorded from any position above, which is especially convenient when taking pictures of recorded data with a camera, etc. while recording. It has become extremely easy to write necessary memos and the like at precise positions corresponding to recorded instantaneous values. Furthermore, since the rod-shaped head is fixed in the width direction of the recording paper (in the direction perpendicular to the recording paper feeding direction), uniform tension is applied over the entire width of the recording paper. It will not be damaged during transportation, and the printing will not become unclear. Furthermore, compared to conventional configurations in which the thermal pen and its head are fixedly placed on the surface of the recording paper, the entire recorder is much more compact and has a sleek appearance. In addition, it has also been possible to achieve an extremely useful secondary effect in that the setting and removal operations of the recording paper can be performed very easily.

[Brief explanation of the drawing]

Figures 1 and 2A are perspective views showing conventional thermal pen type recorders, Figure 2B is a plan view of the head section and thermal pen used in Figure 2A, and Figure 3 is a perspective view of a conventional thermal pen recorder. A perspective view showing an example of such a thermal pen recorder,
FIG. 4 is a perspective view showing the thermal pen used in FIG. 3 in more detail. 8...head portion, 9...thermal pen, 10...thermal recording paper, P...recording paper feeding direction.

Claims (1)

[Scope of utility model registration request] A head portion having a plurality of thermal pens arranged in a direction perpendicular to the feeding direction of the recording paper is fixed on the back side of the thermal recording paper over the entire width of the recording paper,
A thermal pen type recorder, characterized in that data is recorded on the recording paper by supplying heat from the back side of the recording paper with the thermal pen.