JPS62258437A - Original conveying device for overhead projector - Google Patents

Abstract

PURPOSE:To places an original for an overhead projector (OHP) on a stage without letting troubling a lecturer by providing a control position where a driving mechanism is so controlled that an optionally specified original for OHP is positioned on the stage. CONSTITUTION:The OHP1 has the transparent stage 4 where the OHP original is placed as the top surface of a main device body 2 and a projection lens and a light source (both not shown in figure) are incorporated below the stage. The lecturer stands on a side (a) and a reflecting mirror 3 is provided above the stage 4 through an arm 5 provided to the side part of the main device body 2. In this OHP1, light from the light source passes through the stage 4 and its optical path is bent by 90 deg. through the reflecting mirror 3, so that the original is projected on a wall or screen behind the lecturer. An OHP film 7 is beltlike and original contents are provided continuously on a transparent sheet 9; and both ends of the film 7 are rolled to form roll parts 7a, and the film 7 is sent successively by a timing belt 12 driven by a pulse motor 13 with a switch 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field J] The present invention is installed in an overhead projector,
The present invention relates to a document transport device for an overhead projector that automatically transports a document.

“Conventional Technology” Recently, when a lecturer gives a lecture at a lecture or classroom, an overhead projector (
(hereinafter referred to as ro HP j) is increasingly being used. In this OHP, a projection lens is installed under a transparent stage on the surface of the main body of the device, and a light source such as a halogen bulb is placed directly under this projection lens.On the other hand, above the stage, there is an optical path from the light source. The structure is equipped with a reflecting mirror that bends the beam at right angles. According to this OHP, by placing an OHP manuscript written on a transparent film on a stage, the content of the manuscript can be displayed on the wall behind the speaker.
Alternatively, it can be projected onto a screen or the like.

By the way, when conventional OHPs are used, manuscripts are exchanged one by one according to the content of the lecture, and this work is done manually by each lecturer, or by an assistant who exchanges manuscripts. was being carried out.

[Problems to be solved by the invention] The task of exchanging manuscripts one by one as described in item 1 was done while giving a lecture, so it was extremely troublesome for the lecturer. . In addition, if the manuscripts are mixed up on the stage, it takes time to find the desired manuscript, and when placing the manuscript on the stage, it may be placed face down by mistake, or it may be placed upside down. This could easily lead to confusion.

Therefore, there was a desire for a technology that would allow the manuscript for Or-IP to be placed on the 01(P stage) without troubling the speaker.

[Means for Solving Problem 1] The present invention has been made to solve the above problems, and the present invention has been made in order to solve the above problems. It is characterized by comprising a transport mechanism that transports the film in the longitudinal direction on the stage L, and a control device that controls the drive mechanism so that an arbitrarily specified OHP original is positioned on the stage. .

1 action] When the transfer mechanism is activated, the original is written 0 1-I P
The film is transported on the 014 P stage, and by operating the control device, the specified document can be positioned on the stage.

"Embodiment" An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

What is indicated by the symbol I in FIG. 1 is an O r-r P consisting of an apparatus main body 2 and a reflecting mirror 3. As shown in FIG.

In this OHP I, the upper surface of the apparatus main body 2 is a transparent stage 4 on which an OHP original is placed, and the lower side of this stage 4 has a built-in projection lens and a light source (not shown). The side indicated by the symbol (A) on the front side of the figure is the side where the speaker stands, and above the stage 4 is an arm 5 attached to the side of the main body 2 of the device opposite to the side where the speaker stands.
A reflecting mirror 3 is provided via the.

According to this OHP, light from a light source passes through the stay 4, its optical path is bent at a substantially right angle by the reflector 3, and is placed on the stage 4 and onto the wall or screen behind the speaker. OHP originals are projected.

An OHP document transport device according to the present invention is attached to the OHP I having such a configuration, and this will be explained below with reference to FIGS. 1 and 2.

The reference numeral 6 in FIG. 1 is a storage case for this apparatus, and inside this case 6 there is an OHP film 7 as shown in FIG. 2, and a transport mechanism 8 for transporting the OHP film 7. is stored.

The OHP film 7 is strip-shaped, and rectangular transparent sorts 9 on which the contents of the original are directly written are continuously provided at regular intervals in the longitudinal direction. Also,
Two rectangular holes are vertically arranged on one side of the sheet 9 in the longitudinal direction. This is the cue mark 10.

Both ends of the OI-TP film 7 are wound into a roll to form a roll portion 7a.

A timing pulley 11 is attached to one end of both of the roll parts 7a so as to rotate together with the roll part 7a. A timing belt 12 is stretched between both timing pulleys 11. and,
A pulse motor 13 is provided at one end of one of the timing pulleys 11 to control the rotation of the timing pulley 1. This pulse motor 13 has an operation switch 1.
4 is connected.

A two-part timing pulley 11, a timing belt 12, and a pulse motor 13 constitute a transfer mechanism 8 that transfers the OHP film 7 on the OHP stage 4.

Furthermore, a mark sensor 15 for detecting the mark 10 is provided by a fixing means (not shown) on one side of the cue mark 10 when the sheet 9 of the OHP film 7 is positioned on the stage 4 at 0 HPI.

This mark sensor 15 is connected to a pulse motor 13.

・As shown in FIG. 1, in the -1- structure acid transfer device, the cylinder roll part 7a, the timing pulley 11, the timing belt 12, and the pulse motor 13 are each housed in a case 6, and the cylinder roll part 7a is connected between the cylinder roll part 7a. An OHP film 7 is installed in the apparatus main body 2 of the 01-I P + so as to be positioned above the stage 4.

This transfer device operates by rotating the timing pulley 11 by a pulse motor 13 to transfer the OI-IP film 7 in the forward and reverse directions via the timing belt 12, and at the same time, a signal from the surface marking sensor 15 is input. and its operation can be controlled.

This operation control is performed by pulse motor I3 and operation button 1.
4. It can be used in various applications by having the following functions.

(1) Each time the operation switch 14 is pressed, the mark sensor 15 detects the cue mark IO and receives this signal.
Teha) Ii Mismorph 1 stops working, and the next Note 9
always places n-1-9 in the localization value of stage 4 j-. This allows it to be transported in either forward or reverse directions.

(2) Continuously OH while pressing the operation switch 14
I) Transfer the film 7. In this case, the rotation of the pulse motor 13 can be adjusted to enable fast forwarding and slow forwarding.

(3) Position any specified manuscript on stage 4
(For example, move back 3 places or move forward 2 places from the current document position.) In this case, use cue mark 10 as a number,
It would be better if the manuscript with that number was displayed when a designated manuscript number was designated with the operation switch 14. Furthermore, it would be more convenient for the lecturer if a separate display device was provided to display the number.

(4) A storage device is connected to the pulse motor 13, and the number of originals to be output is reserved in advance, and the originals are transferred in the reserved order using the operation buttons.

In this way, with the two-part OHP document transfer device, it is no longer necessary to manually transfer the OHP document to the stage 4, and the line 1-1 is automatically moved, which is different from the conventional method. This eliminates the inconveniences associated with manual processing. Further, by providing the pulse motor 13 and the operation switch 14 with various functions as described above, it is possible to select and transport documents as desired.

Next, another embodiment of the present invention will be described with reference to FIG.

This embodiment is a modification of the OHP film transport mechanism of the above embodiment.

Transfer holes 17 are formed at equal intervals on both edges of the 01-JP film 16 in this embodiment. On the other hand, OH
A gear 19 having teeth 18 fitted in the transfer hole 17 protruding from its periphery is rotatably attached to the front and rear surfaces of the P main body 1. This gear 19 is rotated by a motor 20 and controlled by a control device 21. Reference numeral 22 indicates an operation switch connected to the control device 21.

Note that here, the OHP film 16 is not wound into a roll at both ends in the longitudinal direction, but is simply transported in a stretched state.

According to such a transfer mechanism, when the gear [9] rotates,
Teeth 18 fit into the transfer hole 17, thereby causing the OH
The P film 16 is being transported. The operation can be freely controlled by the control device 21 as in the previous embodiment.

Next, with reference to FIG. 4, still another embodiment of the present invention will be described.

In this embodiment, the transfer mechanism is also modified, and as the OHP film (J1) an OHP film 16 having transfer holes 17 formed in the same manner as described above is used.

This OHP film 16 is wound into a roll at both ends, and at both ends of both roll portions 16a are gears 24 having teeth 23 protruding from the periphery that fit into transfer holes 17.
are provided for each. These gears 24 are rotated by a motor 25, and a control device 26 is connected to these motors 25. Reference numeral 27 indicates an operation switch 27 connected to the control device 26.

° According to such a transfer mechanism, by rotating each gear 24 by each motor 25, it is possible to transfer the 01 (P film 16 to the stage 4 of Or-I P +, and the operation is as follows. The control device 21 allows various operations as in the previous embodiment.

In addition, in the above two other embodiments, the OHP film 16
Transfer holes 17 are formed on both edges in the longitudinal direction, and a gear 19 (24) is provided to fit into the transfer hole 17, but the transfer hole 17 is formed only on one side, and the gear 19 (24) is also on one side. It may also be installed only in

In addition, in all the examples, the OHP film 7
I tried to write the manuscript directly on sheet 9 of (17), but
A transparent bag-shaped storage section may be provided at the position of the notebook 9 on the HP film 7 (+7), and one sheet of OI (P original) may be inserted into the storage section. For example, there is an advantage that the position of the document can be adjusted freely.

As explained in ``Effects of the Invention'' 2, according to the OHP document transfer device of the present invention, there is no need to manually load 014P documents one by one as in the conventional method, and it is possible to transfer documents automatically and continuously. It is possible to place any specified OHP document on the stage of the 01-IP, and its operation is controlled by the control device.
Since the manuscript can be placed on the stage, it has the excellent effect of being able to place the manuscript on the stage without disturbing the speaker's hands.

[Brief explanation of drawings]

1 and 2 are diagrams showing one embodiment of the present invention, in which FIG. 1 is a perspective view of the device installed in an OHP, FIG. 2 is a perspective view of the device, and FIG. 3 is a main body. FIG. 4 is a perspective view showing another embodiment of the invention. FIG. 4 is a perspective view showing still another embodiment. l...0f(P, 4 Stage, 7.16...
・・OHP film, 8・Transfer mechanism, 9・・・・
Notebook (OHP original), 13...Pulse motor (
Control device), 20.25 ・Motor (transfer mechanism), 2
1.26 Control device

Claims (1)

[Claims] A device for transporting a document for an overhead projector on a stage of an overhead projector, the device comprising: an overhead projector film in which the document for an overhead projector is continuously provided in one direction; A document transfer device for an overhead projector, comprising: a transfer mechanism for transferring the document for the overhead projector in a direction; and a control device for controlling the drive mechanism so as to position the arbitrarily specified document for the overhead projector on the stage. .