JPS5827481A - Projecting type television receiver - Google Patents

Abstract

PURPOSE:To make the device stable, by providing a projector freely rotatably at the lower part of a case, reflecting a picture on a reflecting mirror through the rotation of the projector for a specified angle in response to the opened door and projecting the picture on a screen. CONSTITUTION:Doors 5 and 6 are opened by pulling a handle 10 to this side, and the angle of opening of the doors 5 and 6 is held to a specified value with an angle restricting device 7 and a position of a reflecting mirror 13 is decided with a stay 9. Further, a projector 3 can be rotated in the front direction and stopped at the position of a stopper 15 at the inside of the rear. Thus, a picture projected with the projector 3 is reflected on the reflecting mirror 13 and projected on a screen 2. In this case, the center of gravity of the device is kept lower and the door 6 is contacted on the floor surface, allowing to keep the stability without device upset.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a projection television receiver gI11, in particular, a screen and a projection device are provided in the housing, and
The present invention relates to a projection type television, which has a reflector on the front door and projects nine images projected from a projection device onto a screen.

1 to 8 are cross-sectional views showing the structure of a conventional projection type telepicture/reception device. The projection type telescope receiver shown in FIGS. 1 to 8 is a floor-standing type that has been commercially available.

Such projection television receivers can be broadly classified into two types, as shown in FIG. 1 and FIG. 2.

That is, the projection television receiver I7 shown in Fig. 1 is of a separate type, with the main body l and screen 8 installed separately, and Fig. 2 shows a one-piece type, in which the main body l and screen 2 are integrated. be. In the separate type shown in FIG. 1, the main body l is placed in the center of the room with nine screens 2 placed along the wall, and the projection device 8 of the main body l is directly connected to the screen 2.
It projects images onto the screen. This separate type projection television receiver has the disadvantage that the main body 1 must be rounded and placed in the center of the room, which significantly impairs the degree of freedom in using the room and goes against the grain of space saving.

On the other hand, in the case of the integrated type shown in FIG. 2, a screen 8 is placed above the housing 1, and a projection device 8 is placed below this screen 2. A door 5.6 that can be folded and opened and closed is provided on the front surface of the housing 1, and a reflecting mirror 18 is provided on the door 5. The image projected from the projection device 3 is reflected by the reflecting mirror 18 and projected onto the screen 2. Since such an integrated type integrates the screen g and the projection device 8, it has the advantage that it can be made smaller than the separate type shown in FIG.

However, there are limits to the long depth of the projection device 8 and to the reduction of the overall depth of the device.

Therefore, in order to reduce the depth of the device, a structure as shown in FIG. 8 may be considered. The projection television receiver shown in FIG. 8 has a screen 2 disposed above inside the housing l,
A foldable door 6.6 is provided on the front surface of the opening of the housing 1, which can be opened and closed freely. A reflecting mirror 18 is provided on the door 5, and a projection device 8 is attached to the door 6 so as to face upward.

The nine images projected from the projection device 8 are reflected by the reflecting mirror 18 and displayed on the screen B.

However, the projection type television receiver shown in FIG. 8 has the following drawbacks and is not practical.

(1) When the projection device 8 is pulled out from the inside of the cylindrical body 1 together with the door 6, the center of gravity of the entire device moves forward, making it easy to fall over, which is very dangerous.

(2) Since the projection device 8 is composed of heavy items such as lenses and cathode ray tubes (usually 2 sets or 8 sets), the door 5
．． 6 becomes too heavy, and opening and closing the door requires a large amount of force and is dangerous.

(3) Due to the reason in (2), the force of the second roar is applied to the hinge of the door 5.6, which shortens its life.

) from the projection device S to the screen S bottle I! The cabinet needs to have a predetermined optical system installed in the groove, it-g), and the door 2. - large 1
1 is naturally limited, so if you want to cover the pan of the cylindrical seal, another door must be provided.

Therefore, the main objective of this invention is to provide an integrated one-piece projection type television receiver that can eliminate the above-mentioned drawbacks.

To summarize this invention, a screen is provided in the upper part of the housing, a reflective mirror is provided on the door that is attached to cover the opening of the housing and can be opened and closed, and a projection device is installed in the lower part of the cylinder. Free K
In W1. The projector is round and is configured so that when the door is opened, the projection device rotates by a predetermined angle to project the Wk image back onto the screen using a reflecting mirror.

The above objects and other objects and features of the invention will be explained below from the detailed description given with reference to KIIi[-IIIv
It will be 14 years old.

No. 4@h- and swA are vertical new views of an embodiment of the present invention, particularly No. 2 shows the state in which the projection device is housed in the housing, and FIG. 311 shows the state in use.

The cylindrical body l is formed into a vertically elongated box shape, and the front side thereof has an opening 1.
It will be done. A star and one-third are provided in the upper interior of the casing l. 19. A support stand 13 is provided below the cylinder 1, and the projection device is attached to the fulcrum 11 of this support stand ls so as to be movable.

The projection device 3 has an optical system such as an optical system 14 placed on the top thereof, and a power supply transformer in the electric enclosure chassis is placed in the bottom part of the projection device 3. There is. Therefore, by applying only a slight force to the top or bottom of the projection device 3, the projection device 3 will rotate and its optical system will be pulled out forward.

A door is provided at the opening of the casing l so as to cover the opening.

This door consists of a first part 2 and a third part.%ts
A reflecting mirror 18 is arranged on the casing l side of the portion i of l, and
A handle le is attached to IIK. (9) A bonding member is provided at the lower end of the door 6, so that the door 6 can be opened and closed with respect to the housing IK. It should be noted that a screw spring, for example, is used as the clamp **, so that the force acts in the direction in which the door 8 is always closed. Just lean down and pull the handle toward you, and the door 2.・
can be opened and closed without opening suddenly. In addition,
1st and - are opened, and a rounded angle regulating device te is attached to the opening of both to regulate the angle of both. trench nine,
A stay 9 is provided to prevent the first opening from opening beyond a predetermined angle. When I was nine, I fought Rumi, and this stay 9
As a result, the reflecting mirror 18 is placed in a predetermined position.

As shown in No. 411, when the projection device 3 is housed in the cylindrical body l and in good condition, the door 6° is opened by pulling the handle l· toward you. In this case, the angles 1s and 1s are set to predetermined angles by the angle regulating device 1, and the position of the reflecting mirror 1s is determined by the stay 111.

By opening 1 and 9, the projection device can move freely and rotate forward by applying a slight force. On the inner side of the back of the cylindrical body 1, a shaft AII is provided to prevent the projection device from rotating beyond a predetermined angle. Therefore, even if the projection device 3 is moved forward KllI, it will not rotate beyond a predetermined angle due to the angle AIIK. By the above-mentioned series of movements, the projection device 3 and the reflector II
and Starry/3 form a predetermined optical system, and the projection device 3
The nine projected images are reflected by the reflecting mirror 13 and displayed on the screen IK.

As described above, according to this embodiment, the projection device 3 is rotatably provided within the cylinder l, and when not in use, it is stored in the KIIL so that the lens 14 of the projection device faces upward, and when not in use. By rotating the projection device and arranging the optical system to face forward, it is possible to reduce its own weight.

Furthermore, when the device is in use and in an empty state, the door is at a height of K11m above the floor surface, so that safety can be maintained without the device falling over.

In the above-mentioned embodiment, the projection device 3 is housed in the housing so that it can be moved in the vertical direction, but it is also possible to move it in the horizontal direction, for example, without moving the projection device 3 in the vertical direction. Of course.

As described above, according to this invention, since the projection device is rotatably installed inside the cylinder, the depth can be reduced when it is stored, thereby reducing the heat and the installation space. Before use, if you rotate the projection device and position it so that its optical system faces forward, you will be able to
A stone is used to lower the center of gravity, which eliminates the risk of falling.

4. Simple Explanation of 4m* Figures 3 and 3 are diagrams showing the conventional projection amount television registration field. The sound diagram and figure 6 show this sound llQ-
In the longitudinal cross-sectional views of the embodiment, Fig. 9, especially Fig. 4 shows the stored state, and Fig. 4 shows the part in use.

Figure K), l is the housing, snow is starino, 8 is the projection device, ink, - is the door, te is the angle regulating device, 8 is the clamp @1. tt
13 is a rotation fulcrum, 13 is a support base, 13 is a reflecting mirror, and II is a stopper.

弗１郎　　　　　26 44 possible

Claims (2)

[Claims] (1) A casing with an opening on its front surface, a screen provided inside the upper part of the casing, a door that covers the opening of the casing and can be opened and closed, and a reflective mirror provided on the surface of the opening side of the door. and a projection device that is rotatably provided at the bottom of the housing, rotates by a predetermined angle in response to the opening of the door, and projects the image onto the screen by reflecting the image on the reflecting mirror. Equipped with nine, projection type television receiver. (2) The door is divided into upper and lower parts and includes a first and second part, the first part is provided with the reflective mirror, and the first and eighth divided parts are provided with a front door. Claims further comprising means for regulating the opening/closing angles of the first and second parts of the door so that the screen, the reflecting mirror, and the projection device satisfy an optical projection system when the screen is in a state of conflict. The projection television receiver according to paragraph (1).