JPH02143236A - overhead projector - Google Patents

Abstract

PURPOSE:To enable OHP originals to be set to a fixed position on the upper surface of a Fresnel lens by fitting an original file containing the OHP originals on which characters, graphics, etc., are written to the main body of an overhead projector by means of a punched hole added to the file. CONSTITUTION:An original file 113 containing OHP originals 110 on which characters, graphics, etc., are written is fitted to the main body of an overhead projector by means of a punched hole added to the file 113. The OHP originals 110 are filed in the original file 113 and bundled by means of the added punched hole. The bundled original file 113 is held by a holding member on a base 106 through the punched hole of the file 113 and, when the originals 110 are projected, the file 113 is set on a Fresnel lens 101 by turning the file 113 around the holding member. Therefore, the setting position of the OHP originals 110 can be fixed on the upper surface of the Fresnel lens 101.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is mainly applied to overhead projectors.
Regarding handling of HP manuscripts.

[Prior Art] FIG. 4 is a schematic perspective view of a conventional overhead projector, showing an OHP head 102 that incorporates an optical system (light source, lens, reflector, etc.) other than the Fresnel lens 101.
is supported at the end of the OHP column support section 103. OHP
The head 102 and the OHP column support part 103 are indicated by arrows A-B.
A locking mechanism AlO4 that can be fixed by rotating in the direction is attached. A reflecting mirror 105 that determines the projection direction of the overhead projector is movable in the direction of arrow CD, and can be stored in a recessed portion of the OHP head 102. A base 106, which incorporates the Fresnel lens 101, a power supply, a switch, an outlet, etc., and supports the entire overhead projector, supports the lower end of the OHP support column 103.

A locking mechanism B107 that can be rotated and fixed is attached to the support part of the OHP column support part 103-s106. ○
Locking machine 1 for HP head 102. ! Rotate and fix by 90 degrees in the direction of arrow A with lAlO4, and OHP support column 103
When it is rotated 90 degrees in the direction of arrow E by the locking mechanism 8107 and fixed, the OHP head 102 and the bottom surface of the OHP pillar support section 103--the base 106 can be folded. (Two-dot chain line) Furthermore, a power cord storage section 1 for storing a power cord 109 is located around the Fresnel lens 101 of the base 106.
08 is provided. However, the power cord storage section 108
There are some that are not provided. The OHP original 110 on which characters, figures, etc. are drawn is passed through the Fresnel lens 101 one by one.
is placed on the top surface of the screen and projected onto the screen via the reflecting mirror 105.

[Problems to be Solved by the Invention] However, in the conventional example described above, there is a problem that when there are many OHP documents, they tend to fall apart and are difficult to handle, and there is also a problem that it is easy to project them in the wrong order. There is also the problem that the position of the OHP original on the upper surface of the Fresnel lens is not constant.

The present invention is intended to solve the above-mentioned problems, and its purpose is to simplify the handling of OHP manuscripts by filing them in a manuscript file, and to prevent the projection order of HP manuscripts from being made in the wrong order. The object of the present invention is to provide better handling of an OHP document such that the set position of the OHP document on the upper surface of a Fresnel lens is constant.

[Means for Solving the Problems] The overhead projector of the present invention is capable of attaching a document file, which is an OHP document on which characters, figures, etc. are drawn, to the overhead projector main body through added punch holes. Features.

[Operation] According to the above configuration of the present invention, the ○HP manuscript is filed in the manuscript file and is turned to the east by the added punch hole. The bundled document files are held by a holding member on the base through punch holes in the document files. When projecting an OHP original, the original file is rotated around the holding member and set on the upper surface of the Fresnel lens.

[Embodiment] FIG. 1 is a schematic perspective view of a first embodiment of the present invention, which incorporates an optical system (light source, lens, reflector, etc.) other than the Fresnel lens 101, a power supply, a switch, an outlet, etc. The OHP head 102 is supported by the upper end of the OH, P support section 103. A locking mechanism AlO4 is attached to the OHP head 102 and the holding part of the OHP column support part 103, which can be rotated and fixed in the direction of the arrow AB. The reflective GL 105 that determines the projection direction of the overhead projector is movable in the directions of arrows C and D, and the OHP head 1
It can be stored in the recess of 02. fresnel lens 1
01 and supports the entire overhead projector, the base 106 supports the end of the OHP column support section 103. ○The HP support column 103 is box-shaped and has an OH
Contents that can completely store the P head 102 and power cord 1
It has space to store 09. A locking mechanism B107 that can be rotated and fixed is attached to the support part of the OHP column support part 103-s106. The base 106 has a size that completely covers the box-shaped opening of the OHP support column 103 when the base 106 is rotated in the direction of arrow E about the locking mechanism 8107.

At the periphery of the Fresnel lens 101 on the upper surface of the base 106, there is a slider 111 that can slide in the direction of the arrow FG.
is engaged. The slider 111 has a T-shaped bin 1.
12 is removably engaged, and the original file 1
The punched holes added to 13 are retained. OHP manuscript 1 in which characters, figures, etc. are drawn vertically or horizontally
10 is filed in the manuscript file 113. The original file 113 is made of transparent vinyl and has a bag shape.

Next, the operation of the above configuration will be explained. The reflecting mirror 105 is moved in the direction of the arrow and is housed in the recess of the HP head 102. The OHP head 102 is rotated in the direction of arrow B around the locking mechanism AlO4, and is housed inside the box-shaped ○HP support section 103. After storage, the extra space between the OHP column support section 103 and the HP head section 102 is the power cord storage section 10.
8, and stores the power cord 109 which is folded several times in the shape of a "U". The base 106 is a locking mechanism 81
Rotate in the direction of arrow E with 07 as the center, and rotate the light source, lens,
Fresnel lens 101/power cord/09/reflector 10
5 etc. serve as a box-shaped OHP column support part 103 so that it does not become an external part.

Therefore, the appearance after folding is the OHP support column 10.
3 and the opposite surface of the Fresnel lens 101 of the base 106. At the time of projection, the above operation is reversed to set the state as shown in FIG. Next, move the slider 111 in the F direction,
The bin 112 is removed, the punched hole in the original file 113 is held, and the slider 111 is engaged again, and the original file 113 is set on the base 106. The following action is the second
・Explaining with the partial schematic top view in Figure 3, the manuscript file 11 in which the ○HP manuscript 110 drawn in the horizontal direction is filed.
3 is in the state a, and when it is rotated 180 degrees in the direction of arrow H, it becomes the state b and can be projected. (FIG. 2) If the OHP document 110 drawn in the vertical direction is the filed document file 113, move the slider 111 in the G direction to change the document file 113 from a to C state. If the image is further rotated by 90 degrees in the direction of the arrow 1, it becomes the state d, and can be projected in the same direction as the OHP original 110 drawn in the horizontal direction. (Figure 3) [Effects of the Invention] As described above, according to the present invention, the original file can be rotatably held on the base of the overhead projector with the bin as the center of rotation. This has the effect of keeping the set position constant. In addition, by moving the original file in the direction of the arrow FG, it is possible to project a bundle of original files containing mixed OHP originals drawn vertically or horizontally, without separating the OHP originals. It also has the effect of making handling easier.

[Brief explanation of the drawing]

FIG. 1 shows a first diagram of an overhead projector according to the present invention.
FIG. 1 is a schematic perspective view of an embodiment. FIG. 2 shows the first overhead projector of the present invention.
FIG. 3 is a partial schematic top view of the embodiment. FIG. 3 shows the first overhead projector of the present invention.
FIG. 3 is a partial schematic top view of the embodiment. FIG. 4 is a schematic perspective view of a conventional overhead projector.・Fresnel lens ・○HP head ・○HP strut ・Lock mechanism A ・Reflector ・Base ・Lock mechanism B ・Power cord storage section ・Power cord ・○HP manuscript ・Slider ・Bin ・Manuscript file Applicant: Seiko Epson Agent Co., Ltd. Patent attorney Kizobe Suzuki and 1 other person Figure 2 101 Full Length 103 0l-IPjtI main door 106 base 77Q OHP Gensei 111 Slighter Figure 3

Claims (1)

[Claims] 1) In an overhead projector that projects characters, figures, etc. drawn on an OHP document onto a screen using an optical system such as a light source, a Fresnel lens, a lens, a reflector, etc.
An overhead projector characterized in that a document file containing an OHP document on which characters, figures, etc. are drawn can be attached to the overhead projector main body through an added punch hole. 2) An OHP manuscript with characters, figures, etc. drawn on it, and the OHP
It consists of a document file that can file a document into a bundle using added punch holes, a base for setting the document file, and a holding member that holds the punch hole on the base. 2. The overhead projector according to claim 1, wherein the overhead projector can be held rotatably about the holding member as a center of rotation. 3) By making the holding member movable on the base, it is possible to project in the same direction even if the original file includes OHP originals in which characters, figures, etc. are drawn vertically or horizontally. 3. The overhead projector according to item 2, characterized in that: