JPS63242067A - Picture input device - Google Patents

Abstract

PURPOSE:To facilitate the carrying by constituting a placing platen, a vertical plate and a horizontal support so as to be folded. CONSTITUTION:The picture placing platen, the vertical plate 4 connected to the said placing platen 1, a horizontal support 3 connected to the vertical plate 4 and a photoelectric conversion section mounted onto the horizontal support 3 are employed and the placing plate 1, the vertical plate 4 and the horizontal support 3 are constituted to be folded. Thus, the placing plate 1 and the vertical plate 4 are used in common as the outer package, no case is required, the weight is less and the space is small and the transportation is facilitated.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an image input device.

[Conventional technology]

An image input device shown in FIG. 1O is conventionally known as this type of device. In the figure, 1 is the image 1 to be read.
Place a on stand A, 2 is stand stand A! A camera for reading the above image 1a; 3 a horizontal support part that fixes and supports the camera 2; 4 a vertical plate attached to the mounting table 1; It is installed.

Reference numeral 5a indicates a changeover switch for switching a switch circuit (not shown) provided at the lower part of the vertical plate 4, and 6 a power switch. Reference numeral 7 denotes a switch member for white balance adjustment of the navigation camera 2, and by turning on this switch member 7, the white balance can be automatically adjusted. In conventional devices, the main body of the device and the case that houses the main body are separate bodies, and in order to capture images that are not on the mounting table, the tip of the water support 3 and the camera 2 must be moved to the left and right. It requires a complicated mechanism and movement that has to be rotated.

[Problem that the invention seeks to solve]

However, since conventional image input devices are configured as described above, they require a place to store the case when in use, requiring a large space, and requiring ffi, f+
There were also problems in that the t-type was small, inconvenient to carry, and complicated to operate.

This invention was made in order to solve such problems, and the mounting table, the horizontal part plate, and the water/tooth support part are configured to be foldable around the connecting part where they are connected. As a result, it can also be used as a mounting table, a top plate, or an exterior plate, and does not require a case, takes up little space, is lightweight, and is
．． It is an object of the present invention to provide an image input device N having a V' carry of 8 threads.

[First step to solve the problem] The image input device according to the present invention includes an image mounting table, a vertical plate connected to the mounting table a, a horizontal support part temporarily connected to the vertical part, and a horizontal support part connected to the horizontal support part. It consists of the mounted photoelectric conversion unit, the aforementioned mounting stand, the vertical plate, and the water! The purpose of navigation is achieved by configuring the support part to be foldable.

(Function) In the present invention, the mounting table, the vertical plate, and the horizontal support part, which are connected by the above structure, are folded.

〔Example〕

An embodiment of the present invention will be described above based on the drawings.

FIG. 1 is a side sectional view of an embodiment of the present invention, and FIG. 2 is a perspective view showing the overall configuration. Identical or equivalent components in the conventional example are represented by the same reference numerals.

A photoelectric conversion section (not shown) is provided inside the camera 2 to read images such as an original 4i1a (to be described later), and in order to adjust the white balance of the camera 2, a portion of the mounting table 1 facing the camera 2 is installed. It is colored gray. The surface of this mounting table 1 may be white, but this prevents the output of the optical converter from becoming saturated if too much light enters the photoelectric converter in the camera 2, making it impossible to properly adjust the white balance. Therefore, it is preferable to use gray, which has a slightly lower reflectance, than white. moreover,
The mounting table 1 is designed as a diffuse reflection plate so that diffusely reflected light does not enter the camera 2 from the mounting table 1 side.

5 is a switch circuit to be described later, and 5a is a changeover switch for switching the switch circuit 5, which is provided at the tip of the mounting table 1 on the camera side.

Reference numeral 6 denotes a power switch provided on the side surface of the stand l.

8 is a pivot support member which is a connection part for foldably connecting the vertical part plate 4 to the ml writing table 1, and 9 is a +7i
This is a pivot support member which is a connection part for foldably connecting the horizontal support plate 3 to the vertical part plate 4.

4a is a convex portion into which the camera 2 can be inserted when the horizontal support portion 3 is folded around the pivot support member 9; 4b is the convex portion 4
With the hole made at the tip of a.

Reference numeral 10 denotes a cap provided in the hole 4b so as to be freely rounded.

Reference numeral 11 denotes an external input terminal for inputting a video signal from the outside, and it goes without saying that external human power input from this external input terminal 11 is output from the monitor terminal 12.

13 is a lock release button for releasing the horizontal support part 3 from being fixed in a predetermined position, and 14 is a lock release button for releasing the vertical part plate 4 from being similarly fixed in a predetermined position. .

3 and 4 are detailed views of the locking mechanism when the horizontal support i3 and the vertical plate 4 are folded, and FIGS. 5 and 6 are perspective views showing the folding lever.

The procedure for folding the horizontal support portion 3 and the vertical plate 4 will be explained using these FIGS. 3 to 6.

Reference numeral 30 denotes a holder fixed to the vertical plate 4, and has a groove 30a cut into it so that the lock shaft 33 can be slid into it, so that the holder can be locked even when the horizontal support part 3 is opened or folded. There is.

32 is the lock release button on the front board! 3 and a lock shaft 33 are attached at the same time, and by a mechanism (not shown) 4,
It is adapted to slide on the inner surface of the horizontal support section 3. Mab
, 3a is 1! The guide groove 3b of the lock shaft 33 shown in η is 11".
This is a guide groove for the lock release button 13, and both grooves 3a, 3
b are provided in the horizontal guide section 3. , utsuk@3
3 is always pulled in the direction of the axis 9 by a spring 34, and slides on the semi-circumference of the holder 30, and when it slides into the groove 30a of the holder 30, the horizontal support part 3 , becomes locked.

From now on, by turning on the lock release button 13, the horizontal support part '3 becomes swingable around the pivot support part 9, and when it is pushed against the surface of the vertical part plate 4, as shown in Fig. 7A5. It will be in a locked state. In this state,
By removing the cap 10 from the hole 4b provided at the tip of the protrusion 4a protruding from the rear surface of the vertical plate 4, it becomes possible to manually view surrounding scenery, people, etc. through the camera 2. Reference numeral 35 denotes a holder fixed to the i+a mounting table l, and a holder 36 having a groove 36a cut therein is fixed so as to be slidably engaged with the lock shaft 40.

37 is a lock plate to which a lock shaft 40 is fixed;
The inner surface of the vertical plate 4 is slid by a mechanism not shown. Reference numeral 38 denotes a slide plate to which the lock release button 14 and a shaft 39 are fixed.The shaft 39 is attached to a slide plate so as to be rotatable with respect to the lock plate 37 by a mechanism not shown.

It is designed to slide on the inner surface of the vertical plate 4.

Reference numeral 50 denotes a notch provided in the mounting table 1, into which the rotor plate 37 is inserted.

In addition, the lock @40 is rotated by the spring 41 so that the axis 8
When it slides around the semi-circular circumference of the holder 36 and slides into contact with the full circle 36a of the holder 36, the i
The F straight part plate 4 is in a locked state.

In this embodiment, the front member 4 is locked even in the folded V state, but it may not be locked.

Therefore, by turning on the lock release button 14, the vertical plate 4 is made swingable around the pivot member 8, and when it is folded toward the document placement surface of the placement table 1, it is locked.
It is easy to carry, and the mounting table 1 and river surface member 4 serve as the exterior plate of the case-like device, and the cap 10 that closes the hole 4b protects the camera 2 from contact with other objects. protect

Next, the electric circuit of the image input device described above will be explained using the 71st method. FIG. 7 is a diagram showing an example of the configuration of an electrical block of the image input device shown in FIG. 1. In the figure, 2! 2 is a power plug, 22 is a transformer as a power source, 23 is a synthesizer, and 24 is a mode changeover switch. As will be described later, this composition 23 combines the video output of the camera 2 and the external video output, for example, in step 1 when the mode selection switch 24 is on, and when the mode selection switch 24 is off. , is a circuit for outputting only the video output of the camera 2.

In one embodiment of the present invention, the camera 2, the switch circuit 5, and the synthesizer 23 are powered by a common transformer 22, and are not provided with their own power supply, so the configuration is simpler. FIG. 8 is a diagram showing an example of the configuration of the switch circuit 5. In the figure, CI is a coupling capacitor, R1 is a resistor installed between this capacitor C1 and ground, R2 and R are bias setting resistors, QI and Q2 are buffer river transistors, R,, R2 are transistors Ql,
A resistor SWl connected to the emitter of Q2 is a contact that is switched by a changeover switch 5a.

FIG. 9 is a diagram showing an example of the configuration of the synthesizer 23.

In the figure, R, l+R, 2 is a resistor, and 25 is an operational amplifier. The output e0 of the operational amplifier 25 when the mode changeover switch 24 is turned on is the signal from the camera 2
6. Assuming that the signal V2 is from an external input, it is expressed as the following equation.

Also, the output e of the operational amplifier 25 when the mode changeover switch 24 is turned off. In this way, the mode changeover switch 24 switches the mode. As mentioned above, the power supply DC of the operational amplifier 25 is connected to the transformer 22 by a 1:I as a common power supply, and the configuration of the power supply is simplified.

According to one embodiment of the present invention, a mounting table 1. % straight plate 4,
Since the horizontal support part 3 can be folded around the pivot support member 8.9, in the folded state, it serves as the mounting table 1, the eye straight part plate 4, and the exterior plate, eliminating the need for a case.
This has the advantage of providing an image input device that is light in weight, requires less space, and is easy to transport.

Further, by the cylindrical action of folding the water/Y support part 3 as shown in FIG. 5, objects not placed on the mounting table IL can be manually passed through the holes 4b.

By providing the convex portion 4a on the semi-straight plate 3, the device can be made thinner and easier to transport when folded.

[Other Examples]

In the embodiment of the invention described above, the cap 10 is inserted into the hole 4b.
Although the cap 10 is detachably provided in the hole 4b, the cap 10 may be provided in the hole 4b, which is not shown in the figure, so as to be openable and closable. That is, in the locked state as shown in FIG.
By opening the hole 4b (1-1), you can manually view the surrounding scenery, people, etc. using the camera 2. Also, when the camera 2 is folded as shown in Fig. 6, the cap lO can be closed. By closing the hole 4b, the lens 2
can be protected against contact with other objects, etc.
The same functions and effects as in the above embodiment can be achieved.

(Effects of the Invention) As explained in -1- below, according to the present invention, since the mounting table, the vertical plate, and the horizontal support part can be folded, the mounting table and the vertical plate can also serve as exterior plates. , it has the advantage of requiring less space, being lightweight and easy to carry.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of one embodiment of the present invention, Fig. 2 is a perspective view showing the overall configuration, Fig. 3 is a perspective view of the locking mechanism when the horizontal support part is folded, and Fig. 4 is a vertical part plate. Fig. 5 is a perspective view for explaining the folding procedure, Fig. 6 is a perspective view showing the folded state, and Country 7 shows an example of the configuration of the electric circuit block. 8 is a diagram showing an example of the configuration of the switch circuit, FIG. 9 is a diagram showing an example of the configuration of the synthesizer, and FIG. 10 is a perspective view showing the overall configuration of the conventional example. ! ...Placement stand 2 ... Camera 3 ... Water P-support section 4 ... Vertical plate 4b ... Hole

Claims (4)

[Claims] (1) A mounting table for the image to be read, a vertical plate connected to the mounting table, a horizontal support part connected to the vertical plate, and a device mounted on the horizontal support part to convert the image into an electrical signal. 1. An image input device comprising a photoelectric conversion section, the mounting table, a vertical plate, and a horizontal support section being foldable. (2) The image input device according to claim 1, wherein the folded mounting base and the vertical plate also serve as an exterior plate. (3) The image input device according to claim 1, wherein the vertical plate has a hole in a line segment corresponding to the optical path of the photoelectric conversion unit when folded. (4) The image input device according to claim 3, wherein a cap member is removably attached to the hole.