JPS605410Y2 - Character reading head mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a character reading head mounted on an optical character recognition device.

Conventionally, an optical character recognition device (with a mechanism as shown in Figure 1) has been used.
(hereinafter abbreviated as OCR device), 1 is a hopper, 2 is
is a form, and form 2 stacked on hopper 1 is on picker roller 3.
The sheets are taken in one by one by the feed rollers 4, 5 and 6.
, 7 and onto a feed belt 10 stretched between pulleys 8 and 9.

The feed belt 10 also serves as a document alignment mechanism, and is adjusted so that each document 2 moves through a fixed location.The aligned documents 2 pass under the character reading head 11, and at this time, the document The characters printed on the stacker 12 are read, and the characters printed on the stacker 12 are read.
be accommodated in.

Note that 13 is a stacker selection valve. OC like above
When providing the R device at a low price, a commercially available OCR hand with the external shape shown in Figure 2 can be used as a character reading head.
Although the scanner 15 was often used, the OCR hand scanner 15 (hereinafter referred to as the character reading head 15) is held by hand and scans the characters printed on the form 2.
It is manufactured for the purpose of reading, and a handle 16a is provided on the case 16 that houses the main parts, a lamp cover 17 is removably attached to the lower end, and the outer shape has many curved surfaces that are easy to grip. It was troublesome to use it by fixing it to a cage (18 is a cord), a frame (not shown), etc. of an OCR device.

As shown in FIG. 3, the conventional mounting structure for the character reading head 15 is that the character reading head 15 is housed in a housing 30, the lamp cover 17 portion is made to protrude outside the bottom surface of the housing 30, and the character reading head 15 is housed in a housing 30. A filling 3 is placed between the inner wall of the character reading head 15 and the character reading head 15.
1a, 31b, and 31c, and read the character reading head 15.
is fixed, and the housing 30 is subjected to OCR as shown in FIG.
The lower end of the lamp cover 17 is inserted into the guide parts 33, 33 provided on the frame part 32 of the device and fixed.
0, which is placed close to the upper surface of the document 2 to read the characters 2a printed on the moving form 2, or as shown in FIG. The lamp cover 17 is inserted into the hole 35 made in the holding plate 34 fixed to the
the handle part 16a is inserted between the presser fittings 36 and 36 fixed to the retaining plate 34, and the screws 37° and 37
There is a method in which the character reading head 15 is fixed to the retaining plate 34 by tightening it with a screw, but since the holding member is formed to match the outer shape of the character reading head 15, manufacturing is troublesome, and it is difficult to achieve mounting position accuracy. There were drawbacks such as the fact that attachment to and removal from the holding plate required time and effort.

The present invention has been devised in view of the above points, and is an improvement of the mounting structure of a character reading head (OCR hand scanner).

Embodiments of the present invention will be explained below with reference to FIGS. 6 to 10. Parts with the same reference numerals as in FIG. 2 refer to the same parts. 19 shown in FIG. 20 is an illumination hole provided in the lamp cover 17 for inserting the head of the lamp 19 and guiding the light from the lamp 19 to the second side of the form; 21 is a hole for guiding the light from the second side of the form into the case 16; 22 is a male screw for fixing the lamp cover 17 to the case 16, and 23 is a hole for the case 16.
As shown in FIGS. 6 and 7, a ring-shaped internal screw is built into the case 16, and a part of its circumference is inserted into the case 16 through a rectangular window 24.24 provided opposite to the side wall of the case 16. The ends of the male screws 22 of the lamp cover 17 that protrude outward are brought into contact with the lower ends of the female screws 23, and a couple is applied to the outer periphery of the female screws 23 that protrude to the outside of the case 16.
When the lamp cover 17 is rotated, the male screw 22 is screwed into the female screw 23, and when it is tightened, the joint surface 17a of the lamp cover 17 comes into close contact with the lower end 16b of the case 16, and the lamp cover 17 is fixed to the case 16. It looks like this.

25 shown in FIG.
A holding plate fixed to the frame of the device is provided with a recess 26 into which the lower end 16b of the case 16 of the character reading head 15 can be inserted. Holes 27 and 28 that match the 27 and 28 holes and a mounting hole 29 for inserting the male screw 22 are formed.

Next, the order of attaching the character reading head 15 to the holding plate 25 will be explained. First, the lower end 16b of the case 16 is inserted into the recess 26 of the holding plate 25, and at that time, the head of the lamp 19 is inserted into the hole 27. Then, from the back side of the holding plate 25, the male screw 22 of the lamp cover 17 passes through the mounting hole 29 and comes into contact with the female screw 23, and the female screw 23 is rotated and tightened as described above, as shown in FIG. As shown in FIG. 10, the lamp cover 17 is fixed to the case 16 with the bottom surface 26a of the recess 26 in between, and the bottom surface 26a is fixed between the lower end 16b of the case 16 and the joint surface 17a of the lamp cover 17. By sandwiching the character reading head 15, the character reading head 15 is fixed to the holding plate 25 and held securely.

At this time, the head of the lamp 19 is inserted into the illumination hole 20 of the lamp cover 17.

As described above, the mounting structure of the character reading head (OCR hand scanner) of the present invention allows the character reading head 15 to be fixed to the holding plate 25 much more easily and reliably than the conventional example, and the mounting position accuracy is improved. Furthermore, when replacing the lamp 19, the case 16 can be removed from the holding plate 25 by rotating the female screw 23 from the outside of the case 16, and the lamp 19 can be easily replaced.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram for explaining the main part configuration and operation of an optical character recognition device, and FIG. 2 is a perspective view of a character reading head 15 (OCR hand scanner). 3 to 5 are diagrams showing conventional examples. 6 to 10 are views showing an embodiment of the present invention, in which FIG. 6 is an exploded perspective view of the main part of the character reading head 15, FIG. 7 is a front view including a cross section of the main part of the character reading head 15, FIG. 8 is a perspective view of the main parts of the holding plate, and FIGS. 9 and 10 are character reading head 1.
5 is a front view and a side view including a cross section of a main part showing the mounting structure of No. 5; FIG. 11...Character reading head, 15...Character reading head (OCR hand scanner), 16...
...Case, 16b...Lower end of case, 1
7 Lamp cover, 17a...Joint surface, 19...
... Lamp, 22 ... Male screw, 23 ...
... Ring-shaped female screw, 24 ... Window, 25.
...Retention plate, 26...Recess, 26a...
...Bottom of the recess, 29...Mounting hole.

Claims (1)

[Scope of utility model registration request] A character reading head mounting structure comprising: a case; a removable lamp cover screwed onto the case; and a holding plate clamped and fixed between the lamp cover and the case.