JP2745863B2 - Projection television receiver and screen mounting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projection television receiver equipped with a transmission screen and a screen mounting method.

[0002]

2. Description of the Related Art In recent years, projection television receivers using transmission screens have become widely popular, and many projection television receivers have been vertically and horizontally mounted. When a large-screen multi-system is stacked in a combination of M × N squares, a system using a transmission screen is applied. Conventionally, in a projection type television receiver of a type in which a transmission type screen is mounted on a cabinet, a step for fitting the screen 6 is provided as shown in FIG. A means for fitting the screen 6 into the cabinet main body 4, pressing the periphery of the screen 6 with a bar 293 from the front, and attaching the L-shaped bar 293 to the cabinet main body 4 detachably with mounting screws 294. This allows the screen 6 to be attached and detached. Alternatively, as shown in FIG. 30, the screen 6 is sandwiched between the cabinet body 4 and the frame 303 fitted to the cabinet body 4, and the screen 6 is detachably attached to the cabinet body 4. I was

[0003]

However, such a conventional means requires a great deal of labor because a large number of mounting screws must be attached and detached for attaching and detaching the screen, and a projection type television is required. When the main bodies of the receivers are stacked in multiple stages, there is a problem that the screen cannot be attached or detached in the stacked state.

The present invention solves the above-mentioned problems, and provides a projection type television receiver and a screen mounting method capable of easily and reliably attaching and detaching a screen even when the projection type television receiver main body is stacked in multiple stages. The purpose is to provide.

[0005]

In order to achieve the above object, a projection type television receiver according to the present invention is provided with a screen for photographing an image and a cabinet main body.
A lower screen receiving bracket having a screen receiving groove, and a upper screen receiving bracket disposed inside the upper portion of the cabinet main body and provided with a projection for forming a minute space inside the upper portion of the cabinet main body. A screen upper holding bar having a cut-out portion inserted at a minute interval formed inside the upper portion of the cabinet main body and having a cut-out portion to be inserted into and fitted to the protrusion; and two screens attached to the inside of the left and right side surfaces of the cabinet main body. A structure comprising a screen side receiving bracket, and a screen side holding bar inserted and fitted at a minute interval formed on the inside of both sides of the cabinet by the two screen side receiving brackets. Is what you do.

That is, a screen receiving bracket for integrally mounting a screen is mounted on the front surface of the cabinet of a projection television receiver having a projection unit and a projection path, and the screen is mounted. The present invention utilizes a hooking structure formed by a projection disposed on an upper receiving bracket and a spring provided on a screen side receiving bracket.

[0007]

With the above arrangement, the screen can be easily and reliably attached and detached even when the projection type television receiver main body is stacked in multiple stages.

[0008]

1 to 1 show an embodiment of the present invention.
4 will be described. As shown in FIGS. 1, 2 and 3, a screen receiving fitting 1 is attached to the front inner bottom surface of the cabinet body 4 using a screw or the like, and a screen receiving fitting 2 is similarly mounted on the upper surface of the cabinet body 4. Attach using such as. Further, a screen receiving bracket 7 is attached to the right and left sides of the cabinet body 4. next,
After the screen 6 is fitted into the screen receiving bracket 1 and the screen 6 is dropped on the cabinet main body 4 side, the screen 6
After being inserted in the direction of the arrow within the minute space b in the direction of the arrow, the protrusion 21 of the upper screen receiving bracket 2 and the L-shaped notch on the screen holding bar 3 are moved. 31 is fitted. Next, the right and left sides of the screen side holding bar 5 are inserted into the minute intervals c as shown in FIG. 3 so that the projection 71 is inwardly formed by the spring property of the cutout on the screen side receiving bracket 7 side. It moves and fits into the right and left elliptical holes 51 of the screen side holding bar 5, and the screen is fixed to complete as shown in FIG.

FIG. 5 and FIG. 6 are horizontal sectional views of a main part in a state where the screen mounting is completed. 7 to 11 show components of the embodiment of the present invention shown in FIGS.

FIG. 12 is a front view showing a procedure of an attachment method on a screen upper holding bar a3 of a projection type television receiver according to another embodiment of the present invention. That is, a screen lower receiving bracket 1a provided on the bottom surface of the cabinet main body 4 and having a screen receiving groove, and a screen provided on the inner side of the upper part of the cabinet main body and provided with a projection for forming a minute interval inside the upper part of the cabinet main body. An upper receiving metal fitting (2) and a screen upper holding bar (3a) having a notch portion inserted at a minute interval formed inside the cabinet main body and slidingly fitted to the projection, and sliding the screen upper holding bar (3a); The size is set to be equal to or greater than twice the width of the screen side holding bar 5a, and the length of the screen upper holding bar 3a is twice the width of the screen side holding bar 5a than the inner width of the cabinet. It is configured to be shorter by the above dimensions. This makes it possible to attach / detach the screen without disturbing the arrangement of each projection type television receiver in a multi-large screen system configured by stacking in multiple rows and columns.

FIG. 13 is a front view of a multi-large screen system constructed by stacking the projection television receivers shown in FIG. 12 in multiple rows and columns. FIG. 14 is an enlarged front view of an adjacent receiver joint in a stacked state of the projection television receiver.

Further, a third embodiment of the present invention will be described with reference to FIGS. 15 to 25, reference numerals 8 and 9 denote screen upper holding bars (left) and (right) divided into two parts at the center of the cabinet. The screen upper holding bars 8 and 9 are connected to the screen receiving fittings. 2
After being inserted into the minute interval b formed by the top plate of the cabinet 4 and sliding right and left, the screen is fixed by fixing the screen.

The left and right ends of the upper screen holding bars 8 and 9 respectively overlap the screen side holding bars 10 so that the screen is securely fixed.

More specifically, a projection is formed between the screen lower receiving bracket 1 having a screen receiving groove provided on the bottom surface of the cabinet main body 4 and the upper part of the cabinet main body 4 to form a minute gap and to fit and fix the screen upper holding bar. The upper screen holding bar 8 divided into two parts at the center of the cabinet is inserted into the small space on the left side with respect to the center of the cabinet, and is slid and fixed in the left direction of the cabinet. After the upper holding bar 9 is inserted into the right side, the cabinet is slid rightward so that the two clean upper holding bars 8 and 9 overlap at the center of the cabinet, and the projection 8a provided on the one holding bar 8 is provided. Fits into the hole 9a provided in the other holding bar 9 to fix the skein 6 to the cabinet body 4. Are the Unishi was constructed.

Further, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 28 is an external perspective view of a projection television receiver according to a fourth embodiment of the present invention. FIG. 26 is a partially enlarged view of FIG.
FIG. 27 is an operation explanatory view (plan view). 26 and 27
261 is a main body, 262 is a screen, 263
a and 263b are bars, and 264a and 264b are springs.
The operation will be described below. In FIG. 26, both ends of the screen in the vertical direction are respectively fitted into U-shaped grooves of a bar A 263a provided in the vertical direction, and the bar A2 is formed.
Spring A2 having one end of 63a integrally attached to main body 261
64a and the body A 261
263a is slid leftward (FIGS. 27a, b). At this time, a projection 263c provided on a part of the crosspiece A 263a is provided.
Engages with the notch of the spring A 264a (FIG. 3c). By this operation, the bar A 263a is held by the spring force of the spring A 264a) in the vertical direction, and by the engagement between the protrusion 263c and the cutout portion of the spring A 264a in the front-rear direction. Next, similarly, one end of the crosspiece B263b is inserted into a gap between the spring B264b integrally attached to the main body 1 and the main body 261. By this operation, the movement of the screen 262 in the left-right direction is suppressed, and the movement of the bar A 263a) in the left-right direction is suppressed.
This also prevents the bar A 263a from coming off the main body 1 (b in the figure). The bars A 263a, the bars B 263b, and the screen 262 can be attached to the main body 261 by the above operation. The screen 262 can be removed from the main body 1 by reversing the above operation.

[0016]

As is apparent from the above embodiments, according to the present invention, the screen can be easily attached to and detached from the front even in a single projection type television receiver and in a stacked state. A projection television receiver with a narrow joint width can be provided even in a multi-large screen system state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a projection type television receiver according to an embodiment of the present invention.

FIG. 2 is a sectional view of a projection type television receiver according to one embodiment of the present invention.

FIG. 3 is a cross-sectional plan view showing a main part of a projection television receiver according to one embodiment of the present invention.

FIG. 4 is a perspective view of a projection type television receiver according to an embodiment of the present invention in a state where a screen is completely mounted.

FIG. 5 is a horizontal cross-sectional view of a main part of a projection type television receiver screen mounted state according to an embodiment of the present invention.

FIG. 6 is a horizontal cross-sectional view of a main part of the projection type television receiver according to an embodiment of the present invention in a state where a screen is completely mounted.

7A is a partial perspective view of a screen upper holding bar used in the configuration of FIG. 1; and FIG. 7B is an enlarged plan view of a main part of the screen upper holding bar used in the configuration of FIG.

FIG. 8 is a perspective view of a screen (side portion).

9A is a perspective view of an upper screen receiving bracket used in the configuration of FIG. 1; and FIG. 9B is a side view of the upper screen receiving bracket used in the configuration of FIG.

FIG. 10 is a perspective view of a screen lower receiving bracket used in the configuration of FIG. 1;

11A is a perspective view of a main part of a screen (side) receiving member used in the configuration of FIG. 1; and FIG. 11B is a side view of a screen (side) receiving member used in the configuration of FIG.

FIG. 12 (a) is a front view showing a procedure of mounting a screen upper holding bar of a projection type television receiver according to another embodiment of the present invention. (B) A projection type television according to another embodiment of the present invention. Front view showing the mounting procedure of the upper screen holding bar of the receiver

13 is a front view of a multi-large screen system configured by stacking the projection type television receivers in FIG. 12 in multiple rows and multiple columns.

14 is an enlarged front view of a target portion of an adjacent receiver of the multi-large screen system of FIG. 13;

FIG. 15 is an exploded perspective view of a projection type television receiver according to a third embodiment of the present invention.

FIG. 16 is a sectional side view of a projection television receiver according to a third embodiment of the present invention.

FIG. 17 is a horizontal sectional view of a main part of a projection television receiver in a third embodiment of the present invention.

FIG. 18 is a perspective view of a projection television receiver according to a third embodiment of the present invention.

FIG. 19 is an essential part cross-sectional view of a side surface of a projection television receiver in a third embodiment of the present invention.

FIG. 20 is a horizontal sectional view of a main part of a projection television receiver in a third embodiment of the present invention.

FIG. 21 is a perspective view of a screen upper holding bar (left) and (right) used in the third embodiment of the present invention.

FIG. 22 is a perspective view of a screen (side) holding bar.

FIG. 23 (a) is a front view showing a procedure for mounting a projection television receiver in a third embodiment of the present invention. (B) A front view showing a procedure for mounting a projection television receiver in a third embodiment of the present invention. (C) Top view of main part of screen upper holding bar used in the third embodiment of the present invention

24 is a front view of a multi-large screen system configured by stacking the projection television receivers in FIG. 18 in multiple rows and multiple columns.

25 is an enlarged front view of a target portion of a multi-large screen system configured by stacking the projection television receivers in FIG. 18 in multiple rows and multiple columns.

FIG. 26 is a partially enlarged perspective view of a projection television receiver according to a fourth embodiment of the present invention.

FIGS. 27A to 27D are plan views used to explain the operation of a projection television receiver according to a fourth embodiment of the present invention.

FIG. 28 is an external perspective view of a projection television receiver according to a fourth embodiment of the present invention.

FIG. 29 is a partially enlarged perspective view showing a conventional screen mounting method.

FIG. 30 is a partially enlarged perspective view showing a conventional screen mounting method.

[Description of Signs] 1 Screen lower receiving bracket 2 Screen upper receiving bracket 3 Screen upper retaining bar 4 261 cabinet main body 5 Screen side retaining bar 6 262 screen 7 Screen side receiving bracket 8 Screen retaining bar (left) 9 Screen retaining On the cross (right) 10 Screen holding bar 21 71 263c Projection 31 L-shaped notch 51 Oval hole 263a Bar A 263b Beam B 264a Spring A 264b Spring B

Claims (9)

(57) [Claims] A screen lower receiving bracket provided on a bottom surface of the cabinet body and having a screen receiving groove; a screen lower metal fitting provided on an upper inner side of the cabinet main body for forming a minute space inside the upper part of the cabinet main body. A screen upper receiving bracket provided with a projection; and a screen upper holding bar inserted at a minute interval formed inside the upper portion of the cabinet main body and having a cutout portion inserted and fitted to the projection. After the lower end of the screen is inserted into the screen receiving groove of the lower screen receiving metal fitting, the upper screen holding bar is inserted at the minute interval, and is slid in the lateral direction with respect to the inserting direction. A projection television receiver characterized in that the notch is inserted and fitted into the projection and a screen is mounted on a cabinet. 2. A lower screen receiving bracket disposed on a bottom surface of the cabinet main body and having a screen receiving groove, and two screen side receiving brackets mounted inside right and left side surfaces of the cabinet main body. A screen side holding bar which is inserted and fitted at a minute interval formed on the inside of both sides of the cabinet by the two screen side receiving brackets, and the screen of the screen lower receiving bracket is provided. After the lower end of the screen is inserted into the receiving groove, the screen side holding bars are inserted into the minute gaps formed inside the both sides of the cabinet so that the screen is mounted and fixed to the cabinet. A projection television receiver characterized by the following. 3. A screen provided with a projection provided on a screen receiving bracket provided inside the cabinet body, forming a minute space inside the upper portion of the cabinet body, and having a fitting portion which is slidably fitted on the projection. −
A screen mounting method for a projection type television receiver, wherein a screen is fixed to a cabinet by inserting and holding a holding bar at the minute interval. 4. The screen upper holding bar is provided on the long side of the screen upper holding bar by inserting and sliding the screen upper holding bar at a minute interval formed between the cabinet main body and the screen upper receiving bracket. L-shaped notch,
A screen mounting method for a projection television receiver, characterized in that the projection type television receiver is fitted and fixed to a projection for forming a minute interval provided on the screen upper receiving bracket. 5. A screen side receiving bracket for forming a minute space between a cabinet main body side and a screen side receiving bracket to fit said screen side holding bar. The notches and projections are provided at minute intervals, and the projections of the screen-side receiving brackets are moved inward by the spring property of the notches by inserting the screen-side holding bars at the minute intervals. A screen mounting method for a projection type television receiver, wherein the screen is fixed by being fitted into an oval hole provided in a side holding bar. 6. A screen lower receiving bracket provided on a bottom surface of the cabinet body and having a screen receiving groove, and provided on an inner side of the upper part of the cabinet body for forming a minute space inside the upper part of the cabinet body. A screen upper receiving bracket provided with a projection, and a screen upper holding bar which has a cutout portion which is inserted at a minute interval formed inside the upper portion of the cabinet main body and which is slidably fitted to the projection portion; The slide size of the screen upper holding bar is screened.
Set it equal to or greater than twice the width of the screen side holding rail, and set the length of the screen upper holding rail to the width of the screen side holding rail from the inner width of the cabinet. By reducing the length, the screen upper holding bar slides within the internal dimensions of a single projection type television receiver in a multi-system stacking state.
A projection television receiver characterized in that it can be attached and detached. 7. A screen provided on the bottom of the cabinet.
A small gap is formed between the lower screen receiving bracket having the screen receiving groove and the upper portion of the cabinet, and the screen is formed.
A metal fitting provided with a projection for fitting and fixing the upper holding bar is provided, and one of the two screen upper holding bars divided at the center of the cabinet is inserted into the minute space on the left side with respect to the center of the cabinet. Slide and fix to the left, then insert the other screen upper holding bar to the right, slide it to the right of the cabinet, and the two divided screen upper holding bars overlap at the center of the cabinet,
A projection type television receiver characterized in that a projection provided on one of the holding bars is fitted into a hole provided on the other holding bar to fix the screen to a cabinet. 8. The screen upper holding bar is divided into two parts at the center of the cabinet, the same sliding dimension as the width of the screen side holding bar is provided, and the screen side holding bar is inserted at a minute interval in the upper part. Then, the two divided screen upper holding bars and the other screen upper holding bar are slid right and left toward the center of the cabinet, respectively, so that the two divided screens are separated. In the state where the upper holding bars are overlapped and fitted at the center of the cabinet, the respective ends of the two screen upper holding bars overlap the upper ends of the screen side holding bars. And a screen fixed to a projection type television receiver. 9. A screen for displaying an image, a bar for holding the upper end, lower end, left end, and right end of the periphery of the screen independently of each other, a projection unit, and a projection unit and a projection path are provided on the inner wall surface of the cabinet body. And a plurality of springs for detachably attaching the crosspiece to the cabinet body.