JPH0448046Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to an improvement of a transfer device for copying characters, figures, etc. drawn on a document onto a separate sheet or roll of paper.

<Prior Art> FIGS. 3 and 4 are diagrams showing the configuration of a general transfer device. A conventional transfer device includes an optical reading means 1 for reading characters, figures, etc. on a document P, and a position detecting means 2 for detecting the horizontal position of this optical reading means 1.
, an amplifying means 3 for amplifying the screen information signal read by the optical reading means 1, and this amplifying means 3.
analog-to-digital conversion means 4 for converting the amplified signal into a digital signal; and storage means 5 for storing, for example, one line of a manuscript of the information signal W converted by the analog-to-digital conversion means 4.
and a recording means 6 for recording on a predetermined sheet S based on the information signal R stored by the storage means 5.
(thermal head printer, etc.).

As shown in FIG. 3, this transfer device transfers characters and figures on a document onto another sheet of paper S by moving the optical reading means 1 manually or by power drive to a required part of the document and sliding it. It is to be recorded.

However, as shown in FIG. 5, the optical reading means 1 has a light-emitting element 8 and a light-receiving element 9 housed in a case 7 with an open bottom surface, but since the case 7 has a rectangular shape in side view, there is a possibility of slippage between the case 7 and the original. Or, the user's hand movements may not move smoothly. Therefore, a gap A is created between the original P and the focal length between the lower end of the case and the original P.
The problem was that the image was out of focus and could not be read correctly.

<Objective> In view of the above, it is an object of the present invention to provide a transfer device that enables easy and accurate reading by making the side of the optical reading means in contact with the document tapered.

<Example> An example of the present invention will be described below with reference to FIGS. 1 and 2. The transfer device according to the present invention has the following features:
The optical reading means 1 comprises an optical reading means 1 for reading characters or figures on a document, and a control circuit 10 having a function of storing information signals of the optical reading means 1 and making it possible to transfer them onto a predetermined sheet of paper. A light emitting element 8 and a light receiving element 9 are housed inside a case 7 whose bottom surface is open.The lower end of the case 7 is formed into a tapered shape, and the tapered lower end 7a serves as a document reading section 11.

That is, the prismatic cylindrical case 7 has the following shapes as shown in FIG.
It has an opening 12 on the lower surface and a light passage hole 13 on the lower part.
An attached partition plate 14 is formed, and both the left and right lower ends are cut out to the partition plate 14, and both the front and rear lower ends 7a are formed in a spear shape, and the center of both lower ends 7a is the document reading section 11. It is.

The light emitting element 8 is mounted on the upper part of the case 7.
However, a convex lens 15 for concentrating light from the light emitting element 8 on the document reading section 11 is arranged in the center, and a light receiving element 9 is arranged close to the passage hole 13 of the partition plate 14. . and light receiving element 9
The output signal is input to the amplification means 3.

Further, the control circuit 10, as shown in FIG.
It is composed of an amplification means 3, an analog-to-digital conversion means 4, a storage means 5, and a recording means 6.

In the above configuration, in order to read characters, figures, etc. on the original P, the user brings the optical reading means 1 into close contact with the original P and traces the part to be transferred, as shown in FIG. At this time, the tapered lower end 7a of the case 7 is
will be in close contact with. At the center of the tapered lower end 7a is a document reading section 11, on which light from the light emitting element 8 is always concentrated, and a convex lens 1
5 is also made to match that of the document reading section 11. Therefore, even if the case 7 is tilted as shown in FIG. 1b due to the slippage between the case 7 and the document P and the movement of the user's hand, correct reading is possible without shifting the focal length from the convex lens 15. becomes.

<Effects> As is clear from the above explanation, according to the present invention, the lower end of the case is formed into a tapered spear shape, and the tip is used as the document reading section, so even if the user tilts the case slightly, the document reading section remains Since the distance between the light receiving element and the light receiving element is always constant, accurate reading is possible.

In addition, since the focal length of the convex lens that focuses the light from the light emitting element on the document reading section is matched to the document reading section, the distance between the convex lens and the document reading section will always remain constant even if the case is tilted as described above. Therefore, it is possible to prevent the illuminance at the document reading section from decreasing, and it is possible to eliminate the so-called out-of-focus state.

Therefore, even if the case is tilted, correct reading can be performed, and the operability is improved, which is an excellent effect.

[Brief explanation of drawings]

Fig. 1 shows the shape of an optical reading means showing an embodiment of the present invention, in which Fig. 1a is a front view of the case in an upright state, Fig. 1b is a front view of the case in an inclined state;
Fig. 2 is a perspective view of the case, Fig. 3 is a perspective view showing an example of actual use of a general transfer device, Fig. 4 is a block diagram of the same, and Fig. 5 shows a conventional optical reading means. , Figure a is a front view of the case in an upright state, and Figure b is a front view of the case in an inclined state. 1... Optical reading means, 7... Case, 7a...
Lower end, 8... Light emitting element, 9... Light receiving element, 10
...Control circuit, 11...Document reading section.

Claims (1)

[Scope of Claim for Utility Model Registration] Comprising an optical reading means for reading characters, figures, etc. on a manuscript, and a control circuit having a function of storing information signals of the optical reading means and making it possible to transfer them to a prescribed sheet of paper. In the transfer device, the optical reading means includes a light emitting element, a convex lens for concentrating light from the light emitting element on a document reading section, and a light receiving element for receiving light from the document reading section, in a case with an open bottom surface. The transfer device is characterized in that the lower end of the case is formed into a tapered spear shape when viewed from the side, the tip thereof serves as the document reading section, and the focal length of the convex lens is made to match the document reading section. .