Television set fascia

Details Television set fascia Television set fascia

1990-05-14

1991-11-19

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358245, 358254, H04N 5645

Patent

active

050670220

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention to a television set fascia.
2. Description of the Related Art
The fascias of television sets, especially of those equipped with so-called "flat-screen" cathode-ray tubes, usually have aesthetic defects. The inner rim of the fascias is not laid uniformly against the screen: this rim theoretically has the same curvature as the screen, but because of the production tolerances and the approximate centering of the tube in relation to the fascia when the tube is mounted the rim of the fascia is not laid uniformly against the screen.
Moreover, the vibrations experienced by the sets during their transfer and functioning cause abrasion of the rim of the fascia in contact with the screen. The dust generated by this abrasion remains on the screen.
Finally, the known fascias do not effectively support the cathode-ray tubes which may be destroyed if the sets fall a little way.


SUMMARY OF THE INVENTION

The subject of the present invention is a television set fascia which can be laid as closely as possible against the screen of the cathode-ray tube over the entire length of its rim, without generating troublesome visible dust, and which makes it possible to automatically center the cathode-ray tube exactly during the mounting operation, whilst at the same time supporting it effectively and protecting it from shocks.
The fascia according to the invention has an inner rim of which the surface of contact with the screen of the cathode-ray tube is more plane than the surface of the screen. During the mounting of the cathode-ray tube, the fascia is laid against the screen first in the middle of its length and then progressively towards its edges. Advantageously, the inner profile of the fascia comprises a rim of which the visible end has a step.
According to another advantageous characteristic of the invention, the fascia comprises, in each corner of its inner face, two elastic tabs for centering the cathode-ray tube which are arranged symmetrically in relation to the bisector of this corner, these tabs being laid against the surround of the cathode-ray tube.
According to yet another characteristic of the invention, the fascia has, on its inner rim, a plurality of retaining ribs arranged substantially perpendicularly relative to the periphery of the inner cutout of the fascia and extending substantially as far as this rim, these ribs being integral with the peripheral partition of the fascia. Advantageously, these ribs are produced in pairs of ribs parallel to one another and connected near their ends located on the same side as the rim by means of a rib.


BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be understood better from a reading of the detailed description of an embodiment taken as a non-limiting example and illustrated in the accompanying drawing in which:
FIG. 1 is a rear plan view of a television set fascia according to the invention,
FIG. 2 is a partial rear view of a corner of the fascia of FIG. 1, and
FIG. 3 is a section view according to III--III of FIG. 2.


DESCRIPTION OF THE PREFERRED EMBODIMENT

The television set fascia 1 illustrated in FIG. 1 is intended more particularly for sets where the cathode-ray tube has an almost flat screen, but it goes without saying that the invention likewise applies to cathode-ray tubes with a more curved screen. The fascia 1 can have either a rectangular contour or a contour with curved sides. This fascia can be symmetrical or asymmetric in relation to the axes Ox and Oy of the screen 2. For the effective implementation of the invention, it is preferable if the horizontal sides 3, 4 of the fascia 1 do not have too high a bending rigidity, thus allowing it to mate more closely with the surface 5 of the screen 2 against which it is laid.
The following procedure is adopted for installing the fascia 1 on a cathode-ray tube comprising a fasciafastening device, for example of the screw type fastened at the four corners of the screen to lugs fixed to the anti-implosion surround of the t

REFERENCES:
patent: 4360838 (1982-11-01), Babicz et al.
patent: 4853790 (1989-08-01), Dickie

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