JPH0643643U - Overhead projector, Transparency mount frame - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a frame for a transparency mount that makes it easy to see the contents of the teaching material transparency on a desk for presentation with an overhead projector. 【Structure】 One side of the frame for teaching material transparency mount is extended, the extension is folded back to the back of the teaching material transparency at the original boundary line, and the folding part is provided to make the background of the teaching material TP a white background. [Effect] By equipping the frame of the present invention with the material transparency, you can always see the clear visual information against the white background even on the desk, and examine the contents and the development order of classes and lectures. It is very easy to study. It is also convenient for organizing and storing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 Overhead projectors (generally referred to as OHPs) are widely used in educational and information provision sites as teaching material presentation devices at school classrooms, as material presentation devices at lectures and meetings of companies and various groups. There is.

By the way, in order to present teaching materials and information with this OHP, characters, illustrations, photographs, etc. which serve as teaching materials and information are provided in a transparency (hereinafter called TP) made of a transparent plastic film. It is necessary to hand-write the visual information of the film with a pen for film, or to form it by printing or copying.

The present invention improves the convenience of handling, organizing and storing a TP (hereinafter referred to as a teaching material TP) in which such teaching materials and information are described.

[Prior art]

Usually, as the TP film, a highly transparent plastic film, which is cut into JIS, A row No. 4 size or a size close to it, and which has a soot heat resistance to heat treatment of a copying machine, is used. For temporary or simple use as a TP, the TP film can be mounted on the OHP as it is.

However, when trying to devise a presentation, using a large number of sheets, or reusing the film, the film is left as it is for processing for devising the presentation, handling, organizing, and storing the film. Hateful. Therefore, conventionally, as shown in FIG. 1, there has been provided a TP mount frame in which a board, which is slightly larger than the film, is punched out at the center and a frame for fixing the TP film is formed after the punching.

[Problems to be solved by the device]

When the TP film is used as it is, or when the conventional TP mount frame is used, when the teaching material TP is hung on the OHP, it is illuminated by the light from below on the stage of the OHP, and on the screen, the screen There is no problem because the visual information is clearly visible because it is against the white background, but when I try to view the visual information written on the desk for preparation and examination of the contents, the TP film is transparent and the TP film is transparent. If the background is dark, or if there is visual information such as other printed matter, it will be obstructed and very difficult to see. For this reason, a white paper is used as a background or is applied separately, but it is quite cumbersome and it is difficult to sort it out once it is used.

[Means for Solving the Problems]

The conventional frame has a beautiful appearance with a white background on the outside, but the back side is a dim color of the pulp material. However, in the present invention, at least the back side, and if the appearance is concerned, white paperboard or plastic on both sides is used. Use a film to extend one side of the rectangular part that forms the frame of the teaching material TP, and fold the extended part back to the back surface of the teaching material TP at almost the original boundary line to cover the back surface of the teaching material TP, that is, the window of the frame. It was done like this.

[Action]

A frame to which the teaching material TP is fixed and a background paper which makes the background of the teaching material TP white are folded and integrally connected to the frame portion, and when the teaching material TP is viewed on the desk, other help is borrowed. You can see the contents clearly with a white background without any hassle.

【Example】

First, FIG. 1 shows a conventional embodiment. Reference numeral 1 is a teaching material TP in which a visual information example 2 is described, and reference numeral 3 is a conventionally used OHP, TP mount frame made of paperboard with a large window 4 punched in the center. The teaching materials TP and 1 are fixed by fixing the window and the visual information on the back side of the frame 3 at the four corners and other appropriate places with the tape tape piece 5. Reference numeral 6 is a binding hole for files for organizing and storing. Visual information 2 is very difficult to see if there is other visual information such as a dark color or other printed matter in the background.

FIG. 2 shows an embodiment of the present invention. The left half of the drawing is a frame portion 10 having substantially the same shape as that of the conventional frame 1, but the present invention extends one side 7 of the frame portion 10. The fold line 8 is folded back to the back, and the fold portion 8 is formed integrally with the frame portion 10 so as to cover the portion that becomes the background of the visual information described in the teaching material TP, that is, the window. Normally, the fold line 7 is formed by shaping a narrow V-shaped groove. 6 is a file binding hole. FIG. 3 shows a state in which the teaching material TP is attached to the frame of the embodiment of FIG. 2 and the folding portion 8 as the background is folded back to form a file. Since the background of the visual information 2 is white, the visual information 2 is clear and easy to see.

FIG. 4 shows another embodiment of the present invention. This is one in which a file binding hole 6 is provided toward the folded-back portion 8. Numeral 9 is a fold line for facilitating spread when a file is created.

[Effect of device]

When the teaching material TP is attached to the TP mount frame of the present invention, if the background portion is folded back, the visual information on the TP is always clear on a white background and is very easy to see. Therefore, it is very easy to study the contents of visual information and study the development order of classes and lectures. In addition, it is possible to prevent the back surface of the TP film from being peeled off or abraded off during storage, because it has been worked on by coloring or the like.

[Brief description of drawings]

FIG. 1 is a top view of an example of a conventional OHP / TP mount frame.

FIG. 2 is a top view of the OHP / TP mount frame of the present invention.

FIG. 3 is a top view showing a practical state of the embodiment shown in FIG.

FIG. 4 is a top view of another embodiment of the OHP / TP mount frame of the present invention.

[Explanation of symbols]

 1 ... Teaching material TP 2 ... Visual information example 3 ... Frame 4 ... Window 5 ... Cellotape 6 ... File binding hole 7 ... Folded portion Folded portion 8 ... Folded portion 9. ..File spread folds 10 ... Frame portion

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A side of a paperboard frame having a window opened to match the size of a stage of an overhead projector and the size of a standard transparency film. Frames for overhead projectors and transparency mounts that have a white paper surface or a light-colored paperboard folding part close to it.