JPS6224379A - Manual subscan type reader - Google Patents

Abstract

PURPOSE:To obtain a manual subscan type reader by storing a reading means in a housing to perform the electrical primary scan and at the same time performing the subscan in the direction rectangular to the primary scan direction by shifting manually the housing for execution of a reading action. CONSTITUTION:A reading means 3 contains an optical system consisting of light sources 6a and 6b a photoconductor 9, an image pickup element 10 and a circuit P panel 11. A subscan guide means 4 contains a subscan feed signal generating means consisting of a subscan guide member 12, a LED 13 and a photosensor 14, guide rolls 19a and 19b and a magnet 20. When a reading scan operation is carried out, a round rod 12c of the member 12 is hooked to the hook members 3a and 3b of the means 3. Then a connector 12d is connected to a connector 3c. Thus both means 4 and 3 are unified into a body and the means 3 is fed manually for subscan. Then an original 5 can be read and scanned.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention houses a reading means in a casing, performs main scanning at once, and manually moves the casing to perform sub-scanning in a direction perpendicular to the main scanning direction. The present invention relates to a manual sub-scanning type reading device that performs reading by moving.

2. Description of the Related Art In a conventional manual sub-scanning type reader, FIGS.
As shown in the figure, a belt-shaped guide means 2 for guiding manual sub-scanning is housed inside a housing 1 housing a reading means (not shown) in the same way as the reading means, to prevent meandering during manual sub-scanning. It was structured like this. Briefly explaining the operation, the band-shaped guide means 2 is urged to rotate in the direction of the arrow (FIG. 7) inside the housing, and the band-shaped guide means 2 is pulled out against this force and its tip 2a , and set it at the predetermined reading position while checking the reading position through the window 2b. While the main scanning is performed electrically by the reading means, manually move the housing in the direction of arrow B (Fig. 6) to scan the secondary. It performs sequential reading without scanning. Since this sub-scanning is carried out manually, a belt-shaped guide member 2 is provided to prevent the sub-scanning feed from meandering. ).

Problems to be Solved by the Invention In such a conventional sub-scanning guiding method, the belt-shaped guiding member is housed inside the device, which causes the problem that the device becomes complicated and large.

Furthermore, the method of fixing the end portion 2a of the guide member also included an unstable element.

Means for Solving the Problems The present invention provides a sub-scanning guide means provided with a belt-shaped guide member wound around a rotary shaft which is rotatable and biased to rotate in one direction, and a main guide member in a direction perpendicular to the sub-scanning direction. It has an image sensor that electrically scans itself by arranging a plurality of photoelectric conversion elements in the scanning direction, a light source that illuminates the document surface, and an optical system that forms an image of the document image on the image sensor. The manual sub-scanning type reading device is provided with a reading means provided with an engaging means that can be coupled to and separated from the belt-shaped guide member of the sub-scanning guide means.

Effect: With the above-described configuration, it is possible to prevent manual meandering of the sub-scanning feed, and to simplify and downsize the configuration of the reading means that moves along with the sub-scanning. Furthermore, the operability of sub-scanning can be improved.

Embodiment FIG. 1 is a perspective view showing the interior of an embodiment of the manual sub-scanning type reader of the present invention. In FIG. 1, 3 is a reading means;
Reference numeral 4 denotes a sub-scanning guide means, which is shown in cross section in FIG. 1 in order to clearly explain the inside thereof. 5 is a manuscript. Numerals 6&, 6b are light sources for illuminating the document at the reading position, and a plurality of issuing diodes a, 7b are arranged in the main scanning direction during reading, and cylindrical lenses 8&
, 8b are provided to irradiate the reading position linearly. 9 is a light guide, such as a SELFOC lens array (for example, from Nippon Sheet Glass). ) Image sensor 1 for image of original 5
A real image of the same size royal image is formed on 0. In the image sensor 1Q, a plurality of photoelectric conversion elements are arranged during reading and are electrically scanned in the main scanning direction (photoelectric conversion element arrangement direction). 1
1 is a drive circuit that drives the image sensor 10, and light sources sa and eb.
A circuit P board having a light source lighting circuit that lights up a light source, a processing circuit that processes a read signal of the image sensor 1o, and a timing pulse generation circuit that generates a read timing pulse of the image sensor 10 in accordance with the amount of sub-scanning movement; Image sensor 10.
A cable 11a is connected to be electrically connected to the light sources sa and eb, and to receive power supply from the outside and send a read signal to an external device. The above-mentioned reading device 3 is constructed by housing an optical system consisting of light sources 6a and sb, a light guide 9, an image pickup device 1o, and a circuit P board 11.

Reference numeral 12 denotes a belt-shaped sub-scanning guide member made of a transparent film, and opaque parts 122L are regularly formed at equal intervals at the ends thereof. Reference numeral 13 denotes an emission diode, and 14 denotes a photosensor, which are disposed at positions corresponding to the opaque portions 12a of the sub-scanning guide member 12 so as to face each other with the sub-scanning guide member 12 interposed therebetween. A sub-scanning guide member 12, an emission diode 13, and a photo sensor 9 are configured to detect a transparent portion and an opaque portion as the sub-scanning guide member moves and generate a sub-scanning feed signal.
"1 constitutes a sub-scanning sending signal pasting means (it/), B,
, 1 A signal is given to the timing pulse generation circuit so that the image pickup device 10 performs reading scanning.

As shown in FIG. 4, the sub-scanning guide member 12 has one end fixed to a shaft 15, is wound around a shaft 16, and is biased by a spiral spring 16 in the direction of arrow C.

Also, a conductor pattern 12k is provided at the end of the sub-scanning guide member 12).
is configured and connected to terminals 17a, 17b, 17c rotating together with the shaft 15 as shown in FIG.
49 is electrically connected to the diode 13. As shown in FIG. 3, the end of the sub-scanning guide member 12 is exposed to the outside and a small-diameter round bar 120 is attached to it by the biasing force of the spring 16. It is configured to wait. Further, a connector 12d for connecting to a reading means is provided at the end of the conductive pattern. 1ga and 19b are guide rollers disposed near the exit of the sub-scanning guide member 12. 20 is a magnet placed on the bottom surface of the sub-scanning guide means 4.

When performing reading scanning on a magnetic material, the magnet 2o is attracted and can stably fix the sub-scanning guide means, and can also clamp and fix the document. Also, it acts as a weight even if it is not on a magnetic material.

As mentioned above, the sub-scanning guide means 4 includes the sub-scanning guide member 12, the sub-scanning feed signal generating means (consisting of the sub-scanning guide member 12, the issuing diode 13, and the photosensor 14), the guide rollers 19&, 19b, and a magnet. It stores 20.

As shown in FIG. 2, an engaging member 3a for engaging the round bar 120 of the sub-scanning guide member 12 is provided on the outside of the reading means 3.
A connector 3C is provided for electrically connecting 3b, the sub-scanning signal generating means, and the timing pulse generating circuit on the circuit p-board i1.

Further, as shown in FIG. 1, a reading opening 3d is provided on the bottom surface that comes into contact with the original 5, so that the illumination of the original surface by the light sources 6a and 6b and the reading scanning of the image pickup device 10 are not hindered. .

When performing reading scanning with the above-mentioned manual sub-scanning reading device, the engaging members 3a and 3b of the reading means 3 are engaged with the round bar 12c of the sub-scanning guide member 12, and the connectors 12d and 30 are connected. By combining the sub-scan guide means 4 and the reading means 3, the document can be read and scanned by manually moving the reading means 3 in the sub-scan direction.

In this embodiment, the sub-scanning feed signal generating means for generating the reading timing of the image sensor 1o is provided inside the sub-scanning guide means 4, but a member that rotates in contact with the document surface is arranged, and a member is provided at regular intervals. It is also possible to install a mark inside the reading means by providing a mark and inspecting the mark.

Further, in this embodiment, the magnet 20 is arranged on the sub-scanning guide means 4 to stabilize the sub-scanning, but a plate made of flexible resin or the like may be provided on the bottom surface of the sub-scanning guide means 4.

Further, a window may be provided at a position corresponding to the reading scan of the sub-scanning guide member 12, as in the conventional example, so that the reading scan position can be confirmed.

Furthermore, in this embodiment, the sub-scanning feed signal generation means and the timing pulse generation circuit are electrically coupled by integrally forming a conductor pattern on the sub-scanning guide member, but they are connected by a flexible cable. It goes without saying that it is okay to do so.

Effects of the Invention As described above, according to the present invention, the part for manual sub-scanning can be downsized, and the operability of manual sub-scanning can be improved. Furthermore, the end portion of the sub-scanning guide member can be stably fixed to the reading means, and manual sub-scanning can be guided to reduce meandering of sub-scanning, which is extremely useful in practice.

[Brief explanation of the drawing]

FIG. 1 is an internal perspective view of a manual sub-scanning reading device according to an embodiment of the present invention, FIG. 2 is an external perspective view of the reading means of the same device, and FIG. 3 is an external perspective view of the sub-scanning guide means of the same device. 4 is a perspective view of the main part of the sub-scanning guide member of the same device, FIG. 5 is a sectional view of the main part of the connection terminal section of the same device, and FIG. 6 is an external perspective view of the conventional manual sub-scanning reading device. , FIG. 7 is a perspective view of essential parts of the sub-scanning guide member. 3... Reading means, 4... Sub-scanning guide means, 5... Document, 62L ,sb...
Light source, 9...Light guide, 1o...Image sensor, 12...Sub-scanning guide member, 20...
·magnet. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2/2 Figure 4 Figure 5 Figure 6 Figure 7

Claims (3)

[Claims] (1) A sub-scanning guide means provided with a band-shaped guide member wound around a rotating shaft that is rotatable and biased to rotate in one direction, and a plurality of photoelectric conversion elements in at least the main scanning direction perpendicular to the sub-scanning direction. an image pickup device that electrically scans itself by arranging them, a light source that illuminates the document surface, an optical system that forms an image of the document on the image pickup device, and a belt-shaped guide of the sub-scanning guide means. A manual sub-scanning type reading device comprising a reading means provided with a member and an engaging means that can be coupled and separated. (2) The sub-scanning guide means is provided with optically transparent and opaque parts regularly and continuously in the longitudinal direction of the strip-shaped guide member, and a detection means for optically detecting the transparent and opaque parts, and the sub-scanning guide means and the scanner means. The manual sub-scanning type reading device according to claim 1, wherein the main scanning timing of the image sensor is obtained by electrically coupling. (3) A manual sub-scanning type reading device according to claim 1, wherein a magnet is provided at the bottom of the sub-scanning guide means.