JPH0368929A - Overhead projector device provided with automatic film feeding device - Google Patents

Abstract

PURPOSE:To obtain an automatic film feeding projector by providing a film document feeding device, a document tray and an ejection tray which are arranged vertically on the opposite side of the main body and driving a document feeding means and a zoom mechanism by remote control. CONSTITUTION:The arm 30 of the film feeding device 20 is moved back and forth by a rack and a pinion mechanism. By turning on and off a solenoid 42, the arm is rocked with the pinion 36 as a center, and the film document is set on a platen or ejected while it is pressed by a rubber pad 31 on the tip. A paper is fed from the document tray by a paper feeding device 50, which is driven by a paper sensor 55, and the moving quantity of the arm 30 is controlled by a sensor 45 and the driving time of an ejecting roller is decided by a sensor 58. The rack and pinion are driven by a motor 19 to perform a zooming action. The above action is operated by remote control based on the input of a reception part 3a. Therefore, a lecturer easily switches a screen, etc., at the position of a screen.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an overhead projector device (hereinafter referred to as an OHP device) that forms an image on a transparent film and projects the image onto a screen, and particularly relates to an overhead projector device (hereinafter referred to as an OHP device) that forms an image on a transparent film and projects the image onto a screen. The present invention relates to an overhead projector device equipped with an automatic film feeding device, in which the operation of sending film to a projection position of an OHP device and the operation of a zoom mechanism in the main body of the OHP device can be performed using remote control means.

(Prior Art) OHP devices are conveniently used to display explanatory content such as diagrams and tables on a screen instead of a blackboard when a lecturer gives an explanation at a lecture etc. . These OHP devices include so-called reflection-type devices that reflect light from the original image and project it onto a screen via lenses and mirrors, and other devices that transmit light through a transparent film. A so-called transmission type i-position is used in which light is projected onto a screen via a lens and a mirror.

For example, in the case of a transmission type OHP device, the first
The one shown in FIG. 7 is generally used.

In the illustrated conventional OHP device 1, a lamp 8 and a reflector device as shown in FIG.
includes a Fresnel lens 7 and a platen 6 as a light focusing means.
and.

Further, as shown in FIG. 17, a head section 10 is disposed from the side of the apparatus main body 2 via an arm 13, and a lens 11 provided with a focus adjustment means is disposed on the head section 10. , a mirror 12 is provided above it. The arm 13 that supports the head section is attached to the device main body 2 via a hinge 13a, and when the OHP device is not in use, the arm is swung so as to approach the device main body. The head portion is housed in contact with the top surface of the device body.

In the OHP equipment M1 having the configuration as described above,
As shown in FIG. 18, the film original P set on the platen 6 is transmitted by light from the lamp 8,
The transmitted light is imaged by a lens 11, reflected by a mirror 12, and projected onto a screen 14.

(Problems to be Solved by the Invention) However, when using the conventional OHP device as described above, the lecturer stands close to the screen and gives an explanation.Therefore, the OHP device projects images onto the screen. If you manually operate the OHP vtδ every time the image changes, the explanation may be interrupted, and the
There are disadvantages such as the need for the speaker to travel a relatively long distance each time to operate the HP device.

Therefore, in order to solve the above-mentioned problems, it has been proposed to use means for automatically feeding the film, as shown in Japanese Utility Model Application Publication No. 49-4632. In this conventional apparatus, for example, as shown in FIG. On the top of the Pvtra platen,
Conveying roller means 23, 23, . . . are provided at predetermined intervals.

Then, each time the film original is moved, the original tray 2 is
A feed roller device 22 provided in 1 and a conveyance roller means 23
is driven to eject the film original on the OHP device to the ejection tray 24, and to set a new film original on the platen.

However, although providing the above-mentioned means for moving the film original can reduce the burden on the lecturer, it is relatively difficult to position the film original, and in addition, it is difficult to position the film original. Providing a large protruding member causes problems such as an extremely large space occupied by the O-port device.

On the other hand, when a roll film is used instead of a film original cut to a predetermined size, a method as shown in Japanese Utility Model Publication No. 52-37227 has been proposed. The device shown in this conventional example has a configuration as shown in FIG. 20, and is provided with a feeding device 26 on both sides of the OHP device, in which a film feeding section 27 and a film winding section 28 are arranged. .

Then, in accordance with the order of the explanation, the speaker drives the winding unit 28 for a time corresponding to one frame of the film and gives the explanation using the image of the film located on the platen of the Ol-IP device. You can make it work.

However, as mentioned above, using a long film is relatively easy to make with a versatile film like photographic film, but it is difficult to use a long film for a very large screen such as A4 size. However, there is a problem in that it is difficult to apply even if the

Furthermore, when using a general OHP device, other items are appropriately written on the image surface of the film original and projected onto a screen, but when using a long film as mentioned above, In this case, the disadvantage is that it is not possible to replace the pieces.

In addition to the problems with the film advance device mentioned above, when using an O-P device, certain images on the screen can be enlarged,
The content of the explanation is displayed in a larger size. Furthermore, the conventional image plane enlargement mechanism is, for example,
As described in Japanese Patent No. 57239, etc., a plurality of lenses with different magnifications are supported in the head part of the device via a rotating means, so that a predetermined lens can be used depending on the magnification ratio of the screen. A means constructed as follows is used.

However, as mentioned above, when a head section is equipped with multiple lenses, the head section becomes large, the support means for the device body becomes complicated, and the operation of switching lenses becomes complicated. occurs. Further, it is also possible to drive the lens moving mechanism to follow the movement of the platen, for example, in Japanese Utility Model Application No. 55-157240.
This method has been known for a long time, as shown in Japanese Patent Publication No.

However, when using a mechanism such as that shown in the conventional example, the configuration of 0-bit loading is very difficult. E! There are problems such as the structure becomes complicated and the function as a simple OHP device is impaired, and the disadvantage is that the device is constructed with poor versatility.

The zoom mechanism in the OHP device main body and the film feeding function in the automatic document feeder, as shown in the conventional example, are now operated by the speaker directly pressing a switch or the like. There may be cases where

However, in the conventional OHP gastrointestinal system, each 5A
There is a problem in that it is difficult to freely control the position, and it is desired to eliminate such a drawback.

(Object of the invention) The present invention is directed to the conventionally used OH
This eliminates the drawbacks of the P device and the film feed device, and when an automatic film feed device that can be easily used in combination with an OHP device is provided, both devices can be easily operated using remote control means. It is an object of the present invention to provide an overhead projector device that allows the user to obtain the following information.

(Means and effects for solving the problems) O of the present invention
The L-IP device is equipped with a lamp inside the main body of the device, a platen on the top of the main body of the device, and transmits the light of the lamp to image an image of a film original placed on the platen. The present invention relates to a device configured to condense light with a lens, reflect it through a mirror, and project it onto a screen.

An overhead projector device equipped with an automatic film feeding device according to the present invention is provided with means for performing an operation of hitting a film original with respect to the platen of the O/P device and an operation of returning the film original. The film feeding device has an OH
A document tray and a discharge tray are arranged on the side opposite to the P device.

The film document conveying means in the film feeding device is configured to be able to drive the sheet feeding device and the drive mechanism of the arm member respectively using a remote control means, and the zoom mechanism of the overhead projector device can be driven remotely. Control 1] is configured to be performed using control means.

Further, the film feeding device provided in combination with the OHP device of the present invention includes a main body portion composed of a document tray, a paper feeding device, and a paper conveying device, and a film document fed out from the main body portion onto a platen. The arm member has a pad in contact with the film document at the tip of the arm member, and the arm member can be moved back and forth, and the arm member can be swung. The device is configured to move the film original on the platen. Note that the moving distance of the feed arm is automatically set based on the detected information by a paper sensor installed in the paper conveyance device that detects the rise or feed direction of the film. Make sure to align the center of the film with the center.

Further, the head section disposed at the upper part of the OHP main body of the present invention is supported by an arm and arranged at a fixed position with respect to the main body of the apparatus, and is configured such that the function of changing the projection magnification can be performed by vertical movement of the platen. At the same time, the platen is configured to be able to be moved up and down using remote control means.

Therefore, '@O of the present invention having the configuration as described above.
In the HP device, the film feeding device can be easily used in combination with the OHP device, the space occupied by the film feeding device can be reduced, and the operation of setting the film original can be done easily and reliably. The film original placed on the platen can be reliably set at the center of the optical axis of the OHP device.

In addition, in the apparatus of the present invention, it is possible to change the magnification of the O-port device and move the film original on the platen and in the film feeder using a remote control means. A person can easily operate the 0 HPi position from a distance.

Furthermore, in the OHP apparatus of the present invention, when changing the projection magnification, it is possible to change the projection magnification by moving only the platen up and down without moving the head, which simplifies the configuration of the apparatus. I can do it.

(Example) The configuration of an overhead projector device equipped with an automatic film feeding device of the present invention will be explained according to the illustrated example.

The embodiment shown in FIG. 1 is a side view of a case where a film feeder 1tH20 is arranged in combination on the side of an 0)-IPP apparatus. Then, the stage 5 of the apparatus main body 2 is
A film original IP can be set on a platen provided in one part of the screen.

The film feeding device f! of the present invention mentioned above! In ff120, the arm member 30 is arranged to protrude from the upper part of the apparatus main body 2, and on the other side, a document tray 21 and a discharge tray 24 are provided vertically.

Then, the film original P is sent out from the original tray by a paper feeding device provided inside the film feeding device 20 and discharged onto the platen, and the film original is moved and set on the platen by the arm member 30. , to enable image projection. When exchanging film originals, the arm member 30 is moved in and out to move the film original on the platen toward the film feeder, and the film original on the platen is moved toward the output tray by a conveying means provided inside the film feeder. After the film is moved, a new film original is fed from the original tray 21.

In the apparatus of the present invention, the movement of the film original, the enlargement of the image projected on the screen (zooming effect), etc. can be performed using the remote control operating device 9 shown in FIG. 1a. has been done. The remote control operating device 9 includes a power switch 9a1 clear button 9.
A button 9C for supplying and discharging the b1 film original, and buttons 9d and 9e for zooming are provided.

Of these operation buttons, buttons 9b and 9c are used to send signals to the film feeding device to control the transport of the film original, and among the other buttons, the zoom button 9d and 9e are used when projecting by operating a zoom mechanism that moves the platen up and down to enlarge the image surface, as will be described later.

+Vi As described above, in the apparatus of the present invention, the operation of the zoom function of the O-port P-loading device and the operation of feeding the film document of the film feeding device can be performed using the remote control device 9. Therefore, when giving a lecture using the 0-mouth P device, the lecturer can easily switch screens and perform other operations by performing remote sensing at the position of the screen.

(Mechanism of OHP Apparatus) The OHPR apparatus 1 of the present invention shown in FIG. 2 is provided with a platen 6 provided at the upper part of the main body 2 so as to be movable in directions toward and away from the head section 10. and,
Based on the signal input via the remote control receiving section 3a provided on the side of the main body 2, the motor 19 is driven to move the platen 6 up and down, thereby increasing the distance 1 between the lens and the platen.
A zoom mechanism for enlarging and reducing the projected image is constructed by changing the .

In the 011P device 1 of the present invention, the focusing operation of the lens in the head section 10 is also performed in conjunction with the vertical movement of the platen 6.
Since this mechanism can be operated in the same manner as in the case of conventional devices, a detailed explanation thereof will be omitted.
Only the vertical movement of the platen of the main body will be explained.

In the embodiment of the OHP apparatus of the present invention, the platen 6 is attached to a support arm 16, and a rack 17 provided on the arm 16 has a pinion 18 driven by a motor 19.
I'm trying to make it fit together. In addition, in the embodiment described above, a speed reduction mechanism or the like is disposed between the motor and the pinion 18, so that even if an arbitrary motor such as a pulse motor is used, the platen can be moved up and down slowly. do it like this.

Then, the motor 19 is driven in forward and reverse directions by a signal inputted manually through the receiving section 3a, thereby vertically moving the platen 6 through the arm 16, thereby producing an image of the film original. It is possible to perform operations to enlarge and reduce the surface.

Therefore, in the OHP apparatus of the present invention, when enlarging or reducing a part of the image surface of a film original and projecting the image, the operation can be performed satisfactorily using the remote control device. ,Traditional%! It is possible to obtain a device that can be easily operated without the trouble of switching lenses as in the case of a camera.

Note that in the illustrated OHP device 1, the main body 2
) for discharging the heat of the lamp? In order to direct the heat discharged by the fan in a certain direction, an exhaust guide means is provided at the position of the fan, and the side of the exhaust guide means is provided. By arranging the switch 111113 of the device and the remote control receiving section 3a in the section, the main body of the device can be configured compactly.

(Configuration of Film Feeding Device) The example shown in FIG. 3 and the first example shows the configuration of the film feeding device 20 of the present invention. FIG. 3 is a sectional view of the film feeding device, and FIG. Figure 3 shows a top view of the device with the cover removed.

In the film feeding device 20 of the present invention, as shown in FIG. 1, an arm member 30 is provided so as to be retractable toward the upper part of the platen of the OHP device, and a document tray is provided on the other side. and a discharge tray 24. In the example shown in FIG. 3, the document tray is omitted and the end portion of the document tray is shown using a guide 21a connected to the document tray.

The arm member 30 disposed on the film loading main body side of the film feeding device 20 is provided with a pad 31 made of soft rubber or the like having a relatively large coefficient of friction at the lower end of the arm member 30 . Then, by pressing the pad against the film original, the platen 6 follows the movement of the arm member.
It is possible to move the film original above.

An arm drive device 35 is provided for the arm member 30, and the drive device 35 is connected to the arm support frame 40.
A binion 36 is engaged with a rack 32 provided on the arm member, and a drive shaft 37 of the binion is driven to move the arm member 30 in the front-rear direction. .

Further, an arm support frame 40 that supports the arm member 30 is connected to a solenoid 42 via a link 43, and is swung through a shaft (not shown) as the solenoid 42 is turned on and off. Further, a spring 41 is provided on the opposite side of the driving means using the solenoid, and the arm support frame 40 is caused to swing by the spring 41 and the solenoid.

By swinging the arm support frame 40, the arm member 30 is caused to swing about the pinion 36, and the pad 31 provided at the tip of the arm member 30 is
can take two positions: a position where it is pressed against the film original, and a position where it is separated from the film original.

That is, when the arm member 30 moves the film document during paper feeding, the support frame 40 is moved by the operation of the solenoid as shown in FIG. As shown by line I, the pad 31 is swung counterclockwise to a position where it presses the film original, and the pad 31 moves while pressing the film, so that the film original is pushed onto the platen. 6 to the left side of the diagram.

Also, when ejecting a film original, the film original on the platen 6 is moved to the ejecting means by driving the arm member while pressing the pad against the film and driving the film toward the platen. Try to move it towards.

In addition to the above-mentioned drive device for the arm member, the film feeding device of the present invention includes a paper feeding means for feeding the film original from the original tray toward the platen, and a paper feeding means set on the platen 6 inside the main body. A discharge device is provided for moving the film original document to the discharge tray 24.

As a means for feeding paper from the original tray, a paper feeding device 50 is used for the guide 21a arranged at the end of the original tray.
are placed. The paper feeding device 50 includes a paper feeding roller 51
and a screening member 52 are provided to face each other, and the screening member 5
2 toward the paper feed roller 51 with a predetermined pressure.

The sheet feeding device feeds the film originals one by one toward the paper transport path 53 while performing a sorting operation on the film originals, and the transport roller device 54 sends the film originals onto the platen of the OHP device. .

The feeding device is provided with a paper sensor in front of the paper feeding device, and the paper feeding device is driven by detecting a film document on a document tray with the paper sensor. Furthermore, a plurality of sensors 45 are arranged at predetermined positions on the paper transport path 53, as shown in FIG.

The sensor 45 is for detecting the size of the film original being transported, and detects the size of the film original and whether the feeding direction is vertical or horizontal, and inputs the information to the 1119 device. Movement #J amount of arm member υ111
Make it perform the 1st class action.

A device for returning the film original from above the platen 6 to the paper feeder is arranged below the paper feeder. This film/document return is provided with a discharge roller 56 and a discharge port 57 formed by expanding upper and lower guide plates on the platen side of the roller, and the film is fed from above the platen 6 by an arm member. To easily introduce a film original into a discharge port 57.

Further, a sensor 5 is provided on the platen side of the discharge roller 56.
8 is provided, and operations such as setting the driving time of the ejection roller can be performed based on information that a film original is detected by the sensor 58.

(Film Original Conveying Function in Film Feeding Device) In the film feeding device 20 of the present invention shown in FIGS. The paper feeding device is activated by the feed signal, and the film original is sent out from the original tray and discharged onto the platen 6.

After the film original is ejected onto the platen,
The moving distance of the arm member 30 is set corresponding to the size. As mentioned above, the size of the film original is determined by the sensor 45, and the feeding time of the film original is also controlled by each roller for a certain period of time after passing the sensor. The film [4
The feeding operation can be performed accurately.

After the film original is fed onto the platen 6 as described above, the solenoid 42 is activated to swing the arm member 30 counterclockwise, and with the film original pressed by the pad 31, the arm is driven. Rotate the binion of bag E35.

Then, by driving the pinion 36, the arm member 3
0, while pressing the film original with the pad 31,
It is moved in the direction of arrow X and slid by a distance corresponding to the size of the film@document.

Thereafter, the solenoid 42 is turned off and the spring 4
Return the frame 40 with a force of 1, rotate the binion in the opposite direction, and return the arm member 30 to the position shown by the solid line in the figure. By the above operation, the film original is set on the platen with its center aligned, and at the same time, the arm member is stored inside the main body, so the arm does not interfere with the image projected on the screen. I learn not to do it.

As described above, when a command to replace the film original is input to the film feeding device after projecting the image on the film set on the platen, the arm member 30 is first projected above the platen. , after the pad 31 has been moved to a predetermined position above the platen, the solenoid 4
2 is turned on, and by swinging the arm support frame 40, the pad 31 is pressed against the film original.

Then, the pinion 36 is driven to move the arm member 30 in the retracting direction (arrow x1 direction) to move the film original toward the discharge port 57.

When the leading edge of the film original is detected by the sensor 58, the drive of the ejection roller 56 is started to move the film original toward the ejection tray 24.
After the sensor 58 detects the film original, the discharge roller continues to be driven for a certain period of time.

When the film original set on the platen is ejected as described above, the film original is then fed from the original tray.

Then, the operation of setting the film original and the operation of discharging the film original are repeated in sequence, so that the speaker can continue his explanation using the OHP device.

<Paper Guide in FAm Tray) The film feeding device 20, which has the above-mentioned configuration and is capable of feeding the film for 01IP1 position, is attached to an OHP device as shown in the plan view of FIG. Used in combination with 1.

Further, as shown in the figure, a remote control receiving section 46 is incorporated in the film feeding device 20, so that the film feeding device can be operated by pressing a button on a remote control device held by the presenter. It can be done. It should be noted that as the remote control operating device, one as shown in FIG.

In the embodiment shown in FIG. 5, the document tray 21 of the film feeder fff20 is provided with a plurality of sets of paper guides for regulating both sides of the film document. In the above embodiment, the paper guide designated by the reference numeral 60 is used as a guide for horizontal feeding, and the other guide 61
This shows the case where it is used for vertical feeding.

Then, the film original set on the original tray 21 is regulated on both sides by guides 60 and 61, and is fed out in the direction of arrow X by the paper feeding device. Furthermore, by moving the arm member 30 in the directions of the arrows X and X1, the film original sent onto the platen 6 of the main body 2 of the apparatus is positioned toward the image projection position and returned to the returning device. movement towards the target is performed.

A paper guide provided on the document tray 21 of the film feeding device 20 is constructed as shown in FIGS. 6 to 8. The embodiment of the guide shown in FIG. 6 shows a case where two sets of guides 60 and 61 are provided, and each guide has two guide plates on both sides.
It is provided so that it can be moved symmetrically with respect to the center of the document tray in the film running direction.

The movement mechanism of the guide will be explained in the case of the guide 60. Rods 63 and 63 are provided in parallel to each other on the guide plates on both sides, respectively, facing the opposing guide plates. These rods 63 are formed with racks 64 on opposite sides, and binions 65 are arranged for the racks on both sides.

Then, after setting the film original, by moving one guide plate toward the film original, the other guide plate is also moved in a direction toward each other by the rack and pinion mechanism, and the film original is moved toward the film original. You can now position it toward the center of the tray. Note that the other guide device 61 can also suppress and position the film document by providing a moving mechanism having the same configuration as that of the guide 60.

In the embodiment shown in FIG. 7, three sets of paper guides are provided. Each of these guides 60 to 62 uses a moving mechanism similar to that shown in FIG. 6 to perform pressing and positioning operations from both sides for film originals of different sizes. The film original fed onto the platen of the apparatus is ensured to be accurately centered when set on the platen.

Roughly speaking, in the embodiment shown in FIG. 8, two sets of guides are arranged, and of each guide, the guide 60 on the paper feed 5A@ side is used for positioning the A4 size film for horizontal feeding. The other guide 61 is A4
It is provided at the rear of the A4 size film so that I f and II can be performed on both sides of the A4 size film in correspondence with the vertical feeding of the A4 size film.

Even when a mixture of vertical and horizontal film trays 4 is set on the document tray 21, the paper is fed with the center of the film document regulated by the corresponding guide. It is made possible to perform the following functions. Note that the position where the guide 61 is provided is A.
It is set slightly further back than the length of the width of size 4.

(Arm member configuration and movement mechanism) In the film feed 5AI20 of the present invention, the arm member 30 is configured as shown in FIGS. 9 and 10. FIG. 9 shows the relationship between the arm member 30 and the drive means and the positioning mechanism at the end. In this arm member 30, a pad 31 is provided at the end on the platen side, as described above, and a stopper 33 is provided at the other end of the arm member.

A rack 3 is attached to the lower surface of the intermediate portion of the arm member 30.
2, the rack is engaged with the binion 36, and the binion is driven in the forward and reverse directions, thereby moving the arm member in the left-right direction in the figure.

In the arm member of the present invention, the rack 32 is formed on the lower surface of the arm member with predetermined spaces 34, 34a on both sides. Part 34 where this rack is not provided.
34a, when the arm member is moved by the pinion 36 of the drive device 35, even if the arm member 30 moves a predetermined length, if the drive mechanism continues to operate, the pinion will idle. , is provided to stop the feeding action on the arm member.

Further, in the above embodiment, when the arm member 30 is made to protrude above the platen, the end of the rack 32
6 idles and the feeding action is stopped. However, if the rack and the pinion become disengaged, there is a problem that the next returning action will not be performed. In order to prevent the problems mentioned above from occurring,
A spring member 34b is provided so that even if the rack comes off the binion, it can be returned immediately.

Therefore, when the arm member is projected onto the platen, even if the rack and the binion are disengaged and the binion still spins idly, when the binion stops rotating, the arm member is moved to the spring member 34b. It is held in such a state that it is moved to the rear by the force of. Then, when the arm member is returned next time, the meshing relationship between the binion and the rack can be easily restored, and the arm member 30 can be pulled back into the film feeding device.

The example shown in FIG. 10 is a plan view of the drive mechanism of the arm member 30, and as shown in the figure, the arm drive device 25 for driving the arm member is provided on both sides of the main body frame. It is composed of a drive shaft 37 supported via a bearing on a provided bracket 39.39a, and a pinion 36 provided on the drive shaft.

Further, a drive gear 38 is provided at one end of the drive shaft, and the gear 38 is driven in forward and reverse directions by a drive mechanism (not shown), and acts to move the arm member via a pinion. .

As described above, the support means for the arm member 30 is constituted by the support frame 40, and the frame 40 is provided with a swing mechanism using a solenoid and a spring.

(Other Embodiments of Arm Member Moving Mechanism) As shown in FIG. It is also possible to configure the film original so that it can be moved in the horizontal direction on the platen 6.

Further, in the embodiment shown in FIG. 11, an arm lateral movement V device 70 is provided for the arm member 30, and by operating the device 70 by a drive device 71, only the arm member 30 is moved. Alternatively, the frame supporting the arm member 30 can be configured to move in the Y direction.

To this end, for example, a lateral movement device may be provided for the arm support frame 40 shown in FIG. 10, and the arm member 30 may be moved in the lateral direction together with the frame. Become what you can.

In the embodiment shown in FIG. 11, a remote control receiving section 72 is provided at a predetermined position of the film feeding device 20, and the drive mechanism for the arm member 30 is activated by a signal received via the receiving section 72. can be activated.

Further, the receiving section is also provided in the embodiment described above, but in the case of this embodiment, the received operation information and the content of the operation in the film feeding device are displayed on the lamp provided on the display section 73. can be displayed by.

In the embodiment shown in FIG. 12, the animation member provided in the film feeding device 20 is constituted by an arm 75 with a roller, and a drive roller 76 is provided at the tip of the arm 75. In this embodiment, the arm 75 can be provided so as to be movable relative to the support mechanism of the film feeding device, as in the case of the arm member 30, but a driving row 576 is provided at the tip of the arm. Accordingly, there is no need to provide a mechanism for moving the arm relative to the frame of the film feeding device.

After the film original is supplied to the upper part of the 0-port P apparatus main body 2 by the feeding means of the film feeding device 20, the roller is driven to move it on the platen 6 and place it at a predetermined position on the platen 6. By setting the film, the image of the film original can be projected.

Further, as will be described later, in the arm 75 with a roller, when a means for vertically moving the platen 6 is provided, the arm can be oscillated so that the arm can follow the movement of the platen. It is also possible to provide moving means.

Furthermore, in order to prevent the shadow of the arm 75 from appearing when projecting an image of a film original, a mechanism for retracting the arm into the film feed V; , it is necessary to provide a mechanism for swinging the arm outside the optical path.

As mentioned above, by using a means for moving the arm in the lateral direction (Fig. 11), a means for moving the film document using a drive roller (Fig. 12), etc., the document can be set on the platen. When enlarging a part of the image of a film original, the image position of the film original can be moved arbitrarily on the platen, and when combined with a zoom means, any part of the image can be easily enlarged. Can be projected.

In addition to the mechanism of the present invention described above, in the case of the arm 75 with rollers shown in FIG. 12, two sets of rollers are provided diagonally at the tip of the arm, and each roller can be adjusted arbitrarily By providing a means for driving the platen by pressing it against the platen, the diagonal feeding operation of the film document can be performed as desired.

In addition, the arm 7 can be used without driving those drive rollers.
5 in the paper feeding direction, the film original can be moved on the platen in both the setting direction and the discharging direction, as in the case where a pad is provided.

(Projection frame setting means provided in OHP device) The embodiment shown in FIG. 13 shows the frame ta horizontal when a frame can be displayed on the image projected on the screen when using a frameless film. ing. In this embodiment, the frame member 80 is disposed on the lower surface of the platen 6, and as will be described later, the frame members for setting the four sides are paired on both sides and driven by a motor 86. A frame can be formed to match the size of a film original.

The movement of the frame member is performed by a size detection sensor 45 provided on the paper transport path of the film feeding device 20, which detects the size when the film original is moved within the paper transport path, and then transmits the information. By inputting information to the control device i and II, the frame member is moved in accordance with the detected size of the film original.

The above-mentioned movement of the frame member is automatically performed while the film original is ejected from the ejection tray, passes through the M transport path, and is positioned on the platen by the arm member.

The frame member moving mechanism can be implemented by a mechanism as shown in FIGS. 14 and 15. In this example of the moving mechanism, FIG. 14 shows a drive mechanism for the frame member 81.81a that controls the lengthwise direction of the film document, and FIG. 15 shows the drive mechanism for the frame member 82.82a that controls the lengthwise direction of the film document. It shows a 1llll structure. In each of the embodiments described above, the driving means for the frame members are explained using the same reference numerals, so the drawings in group 2 will be explained using FIG. 14 as a representative.

In the embodiment shown in FIG. 14, rods 83.83 are provided in a parallel manner from the end of each frame member 81.81a.

In addition, racks 84 are provided on opposing surfaces of the zero points, and one binion 85 is provided for each rack 84.
is arranged, and by driving the binion with the motor 86, the two frame members 81.81a on both sides are moved in conjunction with each other in the direction toward and away from each other. Then, as described above, by moving the frame members 81.81a, a frame for the vertical screen of the film original is set.

Similarly, the frame member 82.82a shown in FIG. 15 is also automatically positioned by being driven by a motor 86 in response to a signal from a sensor, and the horizontal frame of the film document is automatically set. becomes. Then, by moving the frame members from all sides as described above,
Since it is possible to form a frame for the film original,
When projecting using frameless film, a frame can be clearly projected on the screen.

Furthermore, when projection of the film original is finished and the film original on the platen is ejected by the arm member, each motor is driven in the opposite direction by the ejection signal, and each frame member is returned to its home position and the next film is ejected. Waiting for the original to be loaded.

Another embodiment of the frame member of the present invention shown in FIG. 16 is such that, for example, when using only A4-sized film originals, the frame is automatically adjusted in accordance with vertical and horizontal feeding. 3 shows another example for configuration.

In the embodiment of the frame device 80a shown in FIG. 16, the frame member 87 has a rack formed around it,
The frame member is rotatably provided inside an annular frame guide and can be rotated in the direction of the arrow by a drive motor 89.

Further, the frame member 87 has a light transmitting portion 87b in the center thereof.
is provided, and the periphery thereof is formed as a light blocking portion 87a. The light transmitting portion 87b is arranged so that the film original is A4, for example.
If the target size is a size, it is formed to fit A4 size. On the other hand, if the film document is of F3 size, another member can be attached to the frame guide and used.

When using the frame member configured as described above, in the film feeding device shown in FIG. 13,
When the film original passes through the paper conveyance path, the motor 89 is driven based on detection information such as the size of the film original and the feeding mode in the vertical and horizontal directions. Then, at the same time that the film original is set on the platen, the frame member is automatically set at a position corresponding to the film original.

As mentioned above, by providing a frame member at the bottom of the platen, even when using frameless film, a frame is automatically set for the image projected on the screen to make the image appear clearer. I can do it.

(Effects of the Invention) Since the overhead projector device equipped with the automatic film feeding device of the present invention has the above-described configuration, the film feeding device can be easily used in combination with an OHPM device. In addition to being able to reduce the space occupied by the film feeding device, the film li! The operation of setting a document can be performed easily and reliably, and the film set on the platen can be reliably placed in the center of the OHP device.

In addition, in the device of the present invention, changing the magnification of the 0-port P device and moving the film original on the platen and in the film advance 1Iff can be performed using remote control means. The person is
OHP equipment can be easily operated from a distance.

Furthermore, in the OHP apparatus of the present invention, when changing the projection magnification, it is possible to change the projection magnification by moving only the platen up and down without moving the head, which simplifies the configuration of the apparatus. I can do it.

[Brief explanation of drawings]

FIG. 1 is a side view of a device combining an OHP unit and a film feeding device of the present invention, FIG. 1a is an explanatory diagram of a remote control device, FIG. 2 is a perspective view of an OHP device 1 of the present invention, and FIG. 4 is a side sectional view of the film feeding device of the present invention, FIG. 4 is a plan view thereof, FIG. 5 is a plan view of a device combining an OHP device and a film feeding device, and FIG. 6 is a side view of a guide member provided on a document tray. 7 and 8 are explanatory diagrams of other embodiments of the guide member, FIG. 9 is an explanatory diagram of an arm member and its driving mechanism, and FIG. 10 is an explanatory diagram of an arm member and its driving mechanism.
A plan view showing the relationship between FjA M4, Fig. 11 is an explanatory diagram of a device that moves the arm member laterally, Fig. 12 is a side view when a roller is provided on the arm member, and Fig. 13 is a 0HP
An explanatory diagram when the frame member is provided in the R position, Fig. 14 is a plan view of the frame member in the vertical direction of the film original, Fig. 15 is a plan view of the frame member in the horizontal direction of the film original, and Fig. 16 is a rotation An explanatory view of the frame member, Fig. 17 is a perspective view showing the configuration of a general 0-port P device, Fig. 18 is an explanatory view showing the state of projection by an OHP device, and Fig. 19 is a conventional automatic feed of film originals. FIG. 20 is a side view of the apparatus, and FIG. 20 is an explanatory diagram of the driving means when a roll film is used. Code 1 in the diagram: OHP device, 2: device main body,
10... Head unit, 15... Platen vertical movement device, 20... Film feeding device, 21
...Document tray, 24...First appearance tray, 30...Arm member, 31...Pad, 32...Rack, 35... ... Arm drive device, 36 ... Binion, 40 ... Arm support device, 42 ... Solenoid, 45 ...
... Paper size sensor 50 ... Paper feeding device, 5
3... Paper conveyance path, 54... Conveyance roller device, 56... Discharge roller, 55, 58...
...Sensor, 60-62 ...Guide, 6
4...Rack, 65...Binion, 7
0... Arm lateral movement device, 75... Arm with roller, 80/80a... Frame mounting 4, 8
1.82...Frame member, 87...Frame with rack. Figure 5 Figure 6 Figure 11 Figure 12 Figure 15 εO / Figure 13 Figure 14

Claims (3)

[Claims] (1) A lamp is provided inside the device main body, a platen is provided on the top of the device main body, the light from the lamp is transmitted through the film original placed on the platen, and the light that has passed through the image is detected. In an overhead projector device configured to condense light with a lens, reflect it through a mirror, and project it onto a screen, the operation of setting a film original on a platen of the overhead projector device and the operation of returning the film original are performed. A document tray and an ejection tray are disposed in a vertical relationship on the side opposite to the main body of the device, and the film feeding device is combined with a film feeding device having a means for performing 1. An overhead projector device equipped with an automatic film feeding device, characterized in that a document conveyance device and a zoom mechanism of the overhead projector device are driven using a remote control device. (2) The film feeding device provided in combination with the overhead projector device includes a main body consisting of a document tray, a paper feeding device, and a paper transport device, and a film document sent from the main body on a platen. The device is composed of an arm member for moving the film document, and the tip of the arm member is provided with a pad that contacts the film original, and by the movement of moving the arm member back and forth and the movement of swinging the arm member, the film can be moved on the platen. In addition to positioning and returning the film original,
Setting the moving distance of the film original on the platen,
2. An overhead projector device equipped with an automatic film feeding device according to claim 1, characterized in that the automatic film feeding device is configured to be able to carry out the processing based on information about the size of the document or the direction in which the document is fed. (3) The head section placed at the top of the overhead projector device is supported by an arm and placed in a fixed position with respect to the main body of the device, so that the projection magnification can be changed by vertical movement of the platen. The automatic film according to claim 1, characterized in that the vertical movement of the platen can be performed by a drive mechanism of the platen using remote control means. An overhead projector device equipped with a feeder.