US3239607A

US3239607A - Mask-support for tv tubes

Info

Publication number: US3239607A
Application number: US401528A
Authority: US
Inventors: Mack Bernard; Galstian Babgen
Original assignee: PLASTIC WARE Inc
Current assignee: PLASTIC WARE Inc
Priority date: 1964-10-05
Filing date: 1964-10-05
Publication date: 1966-03-08
Anticipated expiration: 1983-03-08

Description

March 8, 1966 MACK ET AL 3,239,607

MASK-SUPPORT FOR TV TUBES Filed Oct. 5, 1964 2 Sheets-Sheec l 20 6 Z 4 \l a I I I I 1 I I I 2 //Vl/[ V 70,?5 J BEEN/12D MACK 2 amsaew GALST/A/V A ram/5Y5 March 8, 1966 c ETAL 3,239,607

MASK-SUPPORT FOR TV TUBES Filed Oct. 5, 1964 2 Sheets-Sheet 2 IN VEN TORS. BZQ/VAQD MACK BY BABGE/V GALST/fl/V ATTOENE Y5 United States Patent 3,239,607 MASK-SUPPORT FDR TV TUBES Bernard Mack, Rego Park, and Babgen Galstian, Forest Hills, N.Y., assignors to Plastic-Ware Incorporated, a corporation of New York Filed Oct. 5, 1964, Ser. No. 401,528 18 Claims. (Cl. 1787.9)

The present invention is directed to frames and the like for support purposes,.more particularly to masks such as are used to attach to the front of a television cabinet and which, in part support the picture tube.

It has been customary in the past to die cast such masksupports of metal and to provide, at each of the corners of the inner face of the mask, a pair of bosses having openings centrally thereof into which a screw or other fastener attached to the picture tube were inserted to support the front end of the tube. Such a structure had a number of disadvantages in that a relatively large amount of metal was required, adding materially to the cost thereof. The substantial weight thereof made it clumsy and difiicult to handle and to assemble it into the rest of the mechanism. Also, if there were defects in the casting, such as blowholes, sharp corners, or impurities in the molten metal, accidental damage to the mask was liable to occur, sometimes after the completed product left the factory.

In view of the above, the present invention seeks to provide a mask of the character described, it being among the objects of the invention to provide a light-weight, strong, and easily handled device which is sufiicient strong to withstand even rough handling in all the phases of manufacture of TV sets.

It is also among the objects of the invention to provide a device of the type described which is cheap and rapid to manufacture, wherein there are extremely few defective masks as produced, and which do not deteriorate with handling or usage.

In the practice of the invention, there is provided the usual mask or frame such as is used in a television cabinet. In each of the corners of the mask on the rear side thereof, are bosses having central openings whereby the front of the picture tube may be mounted and supported. The mask has a continuous flange extending rearwardly along the outer edges thereof. In accordance with the invention, the structure is made primarily of a synthetic plastic material which gives lightness and strength.

The invention contemplates the provision of ribs integral with the frame and extending from each of the bosses to the flange and united therewith. Preferably, the ribs do not extend directly from the bosses but are at various angles in several directions. Some of the ribs are in parallel relation, other ribs are perpendicular thereto and still other ribs are at various angles to the aforesaid ribs. There is also provided a subframe, the sides of which are approximately parallel to the sides and inner opening of the mask. By reason of this construction, the ribs and also the Webs joining the bosses take up strains from whatever direction they may be induced and furthermore, the structure distributes the strain onto large areas of webs and ribs so that the distribution is uniform for practically the entire area of each corner of the mask.

The invention is more fully described in connection with the accompanying drawing, constituting a part thereof and in which like reference characters indicate like parts, and in which:

FIG. 1 is a rear-planned view, fragmentary in nature, showing one of the corners of the mask and illustrating the structure of the present invention;

FIG. 2 is a somewhat enlarged cross-sectional View taken along line 2-2 of FIG. 1, and

Fatented Mar. 8, 1966 ice FIG. 3 is a view similar to FIG. 2. and taken along line 33 of FIG. 1.

The structure includes a front face 1 of the mask having a central opening bounded by edge 2 and into which opening the picture tube is usually inserted. On the rear face 3 of the mask are a series of bosses 4 distributed along the periphery of the mask having central openings whereby the mask may be attached to the cabinet of the television set. A flange 5 extending rearwardly from mask 1 extends around the entire periphery thereof.

Within each corner are

bosses

6, 7, and 8 extending rearwardly and having central openings. They are arranged in triangular formation and the central openings thereof are intended to accommodate screws or the like for attaching and supporting the front of the picture tube. Webs 9 extend between the several bosses and are integral therewith and with the mask.

A relatively long rib 10 parallel to one of the edges of the mask is connected to flange 5 by a series of parallel ribs 11 spaced a substantial distance apart. A rib 12 parallel to an adjacent edge of the mask is integral with rib 10 and has ribs 13 joining rib 12 with adjacent flange 5. A further rib 14 is roughly parallel to the opening 2 and is joined to one end of rib 10 with the other end thereof joined to rib 12 by additional rib 18.

Ribs

10, 12, 14 and 18 form a subframe.

Ribs

15 and 16 are parallel to each other and merge with the subframe and

bosses

6 and 8.

Webs 17 are integral with

ribs

16 and 14 and boss 6. Webs 19 extending from

bosses

8 and 9 merge into rib 10. Rib 20 parallel to rib 12 merges into

ribs

10 and 18. An additional rib 13' which may be considered as an extension of rib 13 is merged into rib 20.

By reason of this structure, there is accomplished indirect connections between

bosses

6, 7 and 8 and flange 5. This not only strengthens the bosses themselves but ties them in to the flange and thus strengthens the entire structure where the strain of the weight of the picture tube is the greatest. By the provision of three bosses, 6, 7, and 8, the stress on each boss is reduced by a substantial amount. Because the several ribs and webs are at various angles to each other, the strains are taken up by the material contained in all of the stated elements including the subframe, thereby a light weight, non-metallic mask has been provided with greater strength, more reliability and less costly structures.

In FIGURE 4 is shown a slight modification of the invention as shown in FIGS. 13 inclusive. Whereas in FIG. 1, three bosses are shown, namely, 6, 7, and 8, in FIGURE 4, only two bosses 6 and 7 are shown. It has been found in most cases that the third boss, 8, is not of great importance, particularly with smaller sizes of frames.

Still another modification is shown in FIGURE 5, where there is only a single boss, 6. This boss is made substantially larger than those shown in FIG. 1 and normally, would have a diameter about twice the size. There is moulded into the frame within boss 6' a tubular insert 25. This sufficiently strengthens the boss so as to enable the frame to withstand any stress which may normally be placed thereon. It is understood that boss 6' and insert 25 may be substituted for one or more of those bosses shown in FIGURE 1.

What is claimed is:

1. In a mask-support for television tubes having a substantially rectangular frame having a front and a rear face, a central opening in said frame, said rear face having a substantially fiat support in at least one corner thereof, a plurality of ribs integral with said support and approximately normal to said support, at least one upstanding boss in said corner constituting means for attaching said frame to a cabinet.

2. A mask according to claim 1 characterized in that at least some of said ribs are in parallel relation and other ribs are substantially at right angles thereto.

3. A mask according toclaim 1 characterized in that at least some of said ribs are in parallel relation.

. 4. A mask according to claim 3 characterized in that said attaching boss is adjacent the edge of said frame.

5. A mask according to claim 3 characterized in that 'an upstanding sub-frame integral with said support has two of its sides substantially parallel to they adjacent sides of said flange.

9. A mask according to claim 6 characterized in that an upstanding sub-frame integral with said support has two of its sides substantially parallel to' the adjacent sides of said flange and a third side at an angle to said two sides.

10. A mask according to claim 6'characterized in that an upstanding sub-frame integral with said support has two of its sides substantially parallel to the adjacent sides of said flange and a third side at an angle to said two sides and a fourth side parallel to one of said two sides.

11. A mask according to. claim 6 characterized. in that an upstanding sub-frame integral with said support has two of its sides substantially parallel to the adjacent sides of said flange and a plurality of substantially parallel upstanding ribs connect said flange -to saidsub-frame.

12. A mask according to claim characterized in that there are three of said bosses in adjacent relation and interconnected by some of said ribs.

13. A mask according to claim 5 characterized in that.

there are three of said bosses in adjacent relation and interconnected by some of said ribs and the webs,- said webs being at approximately right angles-to each other.

14. A mask according to claim 5 characterized in:that

at least. one ofv said support bosses has a metal tubular insert.

15. A mask according to claim 5, characterized in that. .there'is present a single support boss for atube between the edge of said frame and said opening,

16. A mask according to c1aim5 characterized in that upstanding webs integral with said support interconnect said support bosses.

17. A mask according to claim 16 characterized in that some of said ribs are'in spaced parallel. arrangement and said webs are in parallel arrangement at an angle to said some ribs, and a second set of ribs are in parallelarrangement at approximately right angles to at .least onev of said parallel ribs.

18. A mask according to claim 16 characterized in that some of said websare integral with. some of said ribs.

References Cited by thetExaminer.

UNITED STATES PATENTS V 4/ 1963 Fiore et; a1. 178--7.82

FOREIGN? PATENTS 1,143,228 2/1963. Germany.

References Cited by theiApplicant UNITED 'STATESPATENTS l DAVID G. REDINBAUGH, Primary Examiner. R. L. RICHARDSON; Assistant Examinen

Claims

1. IN A MASK-SUPPORT FOR TELEVISION TUBES HAVING A SUBSTANTIALLY RECTANGULAR FRAME HAVING A FRONT AND A REAR FACE, A CENTRAL OPENING IN SAID FRAME, SAID REAR FACE HAVING A SUBSTANTIALLY FLAT SUPPORT IN AT LAST ONE CORNER THEREOF, A PLURALITY OF RIBS INTEGRAL WITH SAID SUPPORT AND APPROXIMATELY NORMAL TO SAID SUPPORT, AT LEAST ONE UPSTANDING BOSS IN SAID CORNER CONSTITUTING MEANS FOR ATTACHING SAID FRAME TO A CABINET.