JPS6365579A - Aperture card positioning device - Google Patents

Abstract

PURPOSE:To improve the carrying time efficiency by providing a holding member for allowing an aperture card loaded and held by a scanner part to abut on the lower side guide and a control part, respectively, by following up the scanning operation of a scanner part. CONSTITUTION:When the aperture card F0 is held by a scanner 2, a motor 14 for a sub-scan is operated, the scanner 2 holds the aperture card F0 by a wire 16 and slides in a direction as indicated with an arrow 43 on a shaft 17, and also, the upper end of the aperture card F0 is pressed by a plate spring 41 and the lower side guide part of the aperture card is allowed to abut on the lower end guide part of the scanner 2, and also, the right end of the aperture card F0 is allowed to abut on a positioning projecting part 42 provided on the scanner 2, by a plate spring 40. In such a manner, the positioning to the scanner 2, of the aperture card is ended, and the preparatory operation of reading of image is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an aperture card positioning device for an aperture card image reading device, and particularly for loading an aperture card into the scanner of the image reading device from its short side direction. The present invention relates to an aperture card positioning device in the case of a type of aperture card.

(Prior Art) An aperture card image reading device uses a method in which image information photographed on an aperture card is read by main-scanning the image surface using a one-dimensional image sensor such as a CCD array, and by moving the aperture card in a sub-scanning direction. It is a device.

Such an apparatus includes a scanner section for sub-scanning, and the aperture card is once loaded into this scanner section.

Then, the aperture card held in the scanner section is projected onto the imaging plane via the imaging lens with the image recorded on the aperture card, and main scanning is performed here by the -dimensional image sensor. At the same time, in synchronization with this, the scanner unit performs a scanning operation in the long side direction, thereby performing sub-scanning.

Reading of an aperture card is thus performed by main and sub-scanning, so when scanning an aperture card in its longitudinal direction, the aperture card must be scanned not only in its longitudinal direction but also in its transverse direction. This is necessary for positioning or good reading.

Conventionally, this type of device has adopted a sword longitudinal direction feeding method for transporting and loading the aperture card into the scanner section.In this way, the aperture card is fed into the scanner from its longitudinal direction and the scanning operation is performed. In the image reading device that ejects the card in the direction of its short side after the card is finished, the positioning function of the aperture card can be performed without any problem.

(Problems to be Solved) However, in such a conventional device, since the aperture card is fed from the longitudinal direction, it takes a long time to convey it, and the efficiency of the conveyance time is poor.

In addition, from the point of view of efficiency, a short-side feed type aperture card reading system, in which the aperture card is loaded into the scanner from the short side and read, is considered, but an image reading device that loads the aperture card from the short side When the above-mentioned conventional positioning device using the card longitudinal direction feeding system is applied, when loading the aperture card into the scanner from the short side direction, the positioning device obstructs the insertion of the card. This may be due to the inconvenience of not being able to load from any direction.

(Means for Solving the Problems) The present invention solves the problems of the above-mentioned conventional device. , a means for reading an image by main scanning the short side direction of the aperture card and sub-scanning the longitudinal direction by a scanning operation of the scanner unit; and a lower guide for positioning the lower side of the aperture card. , a regulating part for positioning the aperture card in the longitudinal direction, and an aperture card loaded and held in the scanner part, and the lower guide and the regulating part, respectively, as the scanner part scans. and a presser member for making contact.

- It is characterized by having.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 shows an embodiment of an aperture card positioning device in an image reading device having a short-side feeding type aperture card reading system according to the present invention.
The figure is a schematic diagram of the image device, FIG. 3 is a perspective view showing its details, and FIG. 4 is a detailed view of the pressure plate part of the image device.1 First, ? The overall outline of this image reading device will be explained with reference to FIG. 52. In the figure, l is an illumination lamp;
2 is an aperture car 1 (F, F, or a scanner that is loaded from the short side direction and holds it; 3 is an imaging lens; 4
is a one-dimensional image sensor, 5 is a condenser lens, and illumination lamp 1 is an aperture card F held in scanner 2. An aperture card F is illuminated on the light receiving surface of the one-dimensional image sensor 4 by the imaging lens 3.

Form a frame image.

6 is a stacker storing a plurality of aperture cards F;
The aperture card F is pressed in the direction.

10 is a separation roller that sequentially sends out the aperture cards F stored in the stacker 6 to the scanner 2;
1 and rotates in the direction of the arrow.

12 is the aperture card F ejected from scanner 2
The aperture card F released from the scanner 2 at the ejection section that houses the card falls downward, and its lower end hits the protrusion 120 provided on the inner wall of the ejection section 12 and falls while rotating in the direction shown by the arrow 13. They are sequentially loaded on the bottom of the discharge section 12.

In this way, this image reading device has an aperture card F held in the scanner 2 and arranged vertically on its short side.
. The image recorded on the aperture card F is projected onto the imaging plane via the imaging lens 3. The short side direction (vertical direction in FIG. 2) is main-scanned by the -dimensional image sensor 4, and the long side direction (direction perpendicular to the paper surface in FIG. 2) is sub-scanned by the scanning operation of the scanner 2, which will be described later. In addition to such an aperture card reading system, there is also an aperture card F as described below. lower guide and aperture card F. The aperture card F is held by the scanner 2 by effectively utilizing the protrusion for positioning in the long side direction and the scanning operation of the scanner 2. The scanner 2 is provided with a holding member that comes into contact with the lower guide and the protrusion, respectively, as the scanner 2 performs the scanning operation.

Furthermore, the details of these scanners 2 and the positioning mechanism utilizing the operation thereof will be specifically explained with reference to FIGS. 1, 3, and 4.

As shown in FIG. 3, the scanner 2 includes a sliding plate 20, which is slid on a shaft 17 via a wire 16 by a drum 15 directly connected to a motor 14, and is moved by an arrow 18. is driven in the sub-scanning direction.

19 is an idler pulley for applying tension to the wire 16.

Further, the scanner 2 has a slide plate 21, and this slide plate 21 has an opening 2 through which light passes, as shown in FIG.
1a, and is held by a sliding plate 20 in a slidable state in the direction of an arrow 23 by a guide plate 22 as shown in FIG. 25a is fixed.

A rotary plate 24 is provided with respect to the slide plate 21, and as shown in FIG. opening 2
It has 4a. The pressure plate 25b has an opening 36a through which light passes.
The rotary plate 24 is fixed to a mounting plate 36 having a diameter, and is pressed against the opening 24a of the rotary plate 24 by a leaf spring 37. Furthermore, an eccentric cam 28 is provided which presses against the rotating plate 24. This eccentric cam 28 is for controlling the operation of the rotary plate 24 and is directly connected to the motor 31 by a shaft 29.

Incidentally, reference numeral 30 functions to press the rotating plate 24 against the eccentric cam 28 by means of a tension spring hung between the shaft 29 and the rotating plate 24.

Moreover, 33 is an eccentric cam 28 fixed to the slide plate 21.
This mounting plate also serves as a fixing plate for the shaft 26.

Furthermore, the pressure plates 25a, 25b are made of a transparent material to allow light to pass through.

Next, to describe the holding member etc. in the positioning mechanism that utilizes the operation of the scanner 2 described above, as shown in detail in FIG. 1 and FIG. leaf spring 40 and leaf spring 4 as
1 is provided.

One of the leaf springs 40 is an aperture card F loaded in the scanner 2. The other plate spring 41 is a plate spring for positioning the scanner part and for suppressing the protruding part 42 (see FIG. 1 (b)) in accordance with the scanning operation. This is a leaf spring for pressing the cart lower guide section 24c (see FIG. 4) in conjunction with the scanning operation of the scanner section.

Next, regarding this embodiment with the above-mentioned configuration, the stacker part 6
A series of operations for ejecting the aperture card F housed in the aperture card F into the ejecting section ]2 will be explained step by step. First, load one or more aperture cards F whose images are to be read into the stacker part 6, and operate the knob 34 in the direction of the arrow 23 so that the center of the image of the desired frame coincides with the optical axis. adjust. Thereafter, when the operator presses a reading start button (not shown), the motor 31 is activated to rotate the eccentric cam 28, and the cam 28 is stopped in the state shown in FIG. 4(a).

Next, the separation roller 10 is rotated by the motor 11 in the direction of the arrow, and the aperture card F stored in the stacker 6 is rotated by the motor 11.
The first card is sent out from below the stacker 6, and falls between the pressure plates 25a and 25b due to the weight of the aperture card F, as shown in FIG.
I hit 4c.

Thereafter, the motor 31 operates again, rotates the eccentric cam 28, and stops in the state shown in FIG. 4(b).

Here, the aperture card F has two pressure plates 25a.

25b.

By the way, in this state, as shown in FIG. 1(a), the aperture card F. is not positioned in scanner 2 and is aperture card F.

Place the image recorded on the lens 3 on the imaging plane in the correct position.
Since it is not possible to project the image by using the aperture card F before the image reading operation. It is necessary to position the scanner 2 with respect to the scanner 2.

The above-mentioned leaf spring 40. The old system was designed to perform this positioning, and moreover, it effectively performed this using the scanning operation of the scanner 2.

The operation of positioning the aperture card is as shown in FIGS. 1(A), (O), and (8).

That is, the aperture card F is in the state shown in ff51 diagram (a). When the card is held in the scanner 2, the sub-scanning motor 14 is activated, and the scanner 2 is moved to the aperture card F by the wire 16. While holding the aperture card F, slide it on the shaft 17 in the direction of the arrow 43 (FIG. 1(a)). The upper end of the aperture card F is pressed by the leaf spring 41, and the lower guide part of the aperture card is brought into contact with the lower end guide part 24c of the scanner 2, and the aperture card F is further pressed by the leaf spring 40. The right end in FIG. 1 is brought into contact with a positioning protrusion 42 provided on the scanner 2 (FIG. 1 (O)).

With the above steps, the positioning of the aperture card in the scanner 2 is completed, and the image reading preparation operation is completed.

In this way, the aperture card can be positioned, so there is no need to load the aperture card from the short side direction because the positioning device of the longitudinal direction feeding system gets in the way, which is the case in the past. Even in an image reading apparatus of the type in which the image reading apparatus is loaded into the scanner 2 from its short side direction, it can be used without any problem, and moreover, it can be used effectively since it utilizes the operation of the scanner 2. Furthermore, it is possible to improve efficiency in terms of transport time efficiency compared to conventional cart longitudinal feeding systems.

Now, when positioning is completed as described above.

Next, the sub-scanning motor 14 is restarted, and the wire 16 starts the sub-scanning of the scanner 2 in the direction of the arrow 44 (FIG. 1 (c)). A frame image formed on the light receiving surface of the one-dimensional image sensor 4 is read by the -dimensional image sensor 4.

When the above-mentioned reading operation is completed, the motor 31 is restarted, and the rotation of the eccentric cam 28 causes the lower protrusion 2 of the rotary plate 24 to rotate.
4c starts to rotate in the direction away from the slide plate 2I.

Then, when the rotating plate 24 is rotated to the position shown in FIG. It is separated from the lower protrusion 24c of 24.

Furthermore, when the eccentric cam 28 continues to rotate until it reaches the state shown in FIG. Due to its own weight, it falls downward from between the pressure plates 25a and 25b, and as shown in FIG.
When the lower end contacts 1, it is loaded onto the bottom of the discharge section 12 while rotating in the direction of the arrow 13 shown in FIG.

This completes the image reading device for one aperture card.

In the above embodiment, the plate springs 40 and 41 are used as the positioning holding member, but the same effect can be achieved by using not only plate springs but also any elastic material (for example, maltbrene, rubber, plastic, etc.). You can get the effect.

(Effects of the Invention) As described above, according to the present invention, the aperture card held in the scanner section is brought into contact with the lower guide of the aperture card and the regulating section for longitudinal positioning, respectively, during the scanning operation. Positioning can be done by providing a holding member that makes contact with the aperture card, so the positioning of the aperture card to the scanner part can be done at low cost by using the scanning action of the scanner part and only by adding two leaf springs, etc. This can be done reliably, and even in devices that load the card from the short side into the scanner section, positioning can be performed without any problems, and it also has the effect of improving transport time efficiency compared to conventional card longitudinal direction feeding systems. .

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing details of an embodiment of a card positioning device according to the present invention, FIG. 2 is a schematic diagram of an image reading device to which the present invention is applied, and FIG. 3 is a diagram showing details of the image reading device. The perspective view and FIG. 4 are detailed views of the pressure plate section of the image reading device. 2・・・・・・・・・・・・・・・Scanner 24c・
・・・・・・・・・Lower guide part 40.41...
・・・・・・Plate spring 42・・・・・・・・・・・・Protrusion part F, F,・
・・・・・・・・・・・・Aperture card patent applicant
Canon Co., Ltd. Agent Patent Attorney
Toru Fujioka 4c 24c 4c

Claims (1)

[Claims] An aperture card is loaded into the scanner section from its short side direction, and the short side direction of the aperture card is main scanned, and the long side direction is sub-scanned by the scanning operation of the scanner section to image an image. a lower guide for positioning the lower side of the aperture card; a regulating section for positioning the aperture card in the longitudinal direction; and a means for reading the aperture card loaded and held in the scanner section. An aperture card positioning device comprising: a pressing member for abutting the lower guide and the regulating portion, respectively, as the scanner section performs a scanning operation.