US2857588A

US2857588A - Decorative plastic side channel for glass of television set

Info

Publication number: US2857588A
Application number: US635918A
Authority: US
Inventors: Korol Peter
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1957-01-23
Filing date: 1957-01-23
Publication date: 1958-10-21
Anticipated expiration: 1975-10-21

Description

Oct. 21, 1958 Y 8 R O E 8 OR N 5 T O R W MR QJ o0 V A 2 EMB P H Y B w P. KOROL DECORATIVE PLASTIC SIDE CHANNEL FOR GLASS OF TELEVISION SET Filed Jan. 23, 1957 between.

United States Patent 8 ice, 1, 1958 DEfiORATIVE PLASTIC SIDE CHANNEL FOR GLASS OF TELEVISION SET Peter Korol, East Syracuse, N. Y., assignor to General Electric Company, a corporation of New York Application January 23, 1957, Serial No. 635,918

4 Claims. (Cl. 340-367) This invention relates to television cabinet construction and particularly to the mounting of the safety glass and mask in the cabinet around the viewing end of the television picture tube.

In television receiving sets it is desirable to mount a safety glass in front of the viewing portion of the television picture tube as is well known in the art. In certain receiving sets, it is further desirable in addition to mount a mask around the forward or viewing end of the televisiot picture tube. The safety glass and the mask are mounted Within an opening provided in the cabinet frame. With the present day mass production facilities, it is not practicable to manufacture the cabinet frame opening, the safety glass and the mask to provide a perfect fit therebetween. Mounting accessories are provided to mount the glass and the mask within the cabinet frame opening, these mounting accessories being designed and adaptd to permit substantial tolerances in shapes and sizes of the cabinet frame opening, the safety glass and the mask. Accessories used heretofore to mount the safety glass and the mask in the frame opening have included sponge rubber, springs, and similar accessories. Although certain of these prior mounting accessories have provided a satisfactory finished product, they are costly difiicult to assemble and difficult to replace and repair.

Accordingly, it is an important object of the present invention to provide an improved construction for mounting a safety glass within a cabinet frame opening in fiont of a television picture tube.

Another object of the invention is to provide an improvide channel member mounting a safety glass in a cabinet frame opening, the channel member completely filling the space between the edge of the safety glass and the wall defining the frame opening to receive the glass.

Still another object of the invention is to provide a mounting of the type set forth which will permit large tolerances in size and shape of the safety glass and the cabinet frame opening receiving the safety glass, the channel member completely filling the space between the safety glass and the cabinet frame to leave no gap there- Yet another object of the invention is to provide a channel member of the type set forth Which can mount a,

safety glass and a mask within a cabinet frame opening, the channel member completely filling the space between the safety glass and the cabinet frame and between the mask and the cabinet frame and correctly mounting the mask in operative position with respect to both the safety glass and the cabinet frame.

A further object of the invention is to provide a channel member of the type set forth which is decorative, more economical to manufacture and which is easier and more economical to assemble, replace and repair.

These and other objects and advantages of the invention will be better understood from the following de-.

scription when taken in connection with the accompanying drawing. In the drawing, wherein like reference numerals have been utilized to designate like parts throughout:

Figure 1 is a perspective view of the front or viewing end of a television receiver having incorporated therein the channel member made in accordance with and embodying the principles of the present invention;

Figure 2 is a view in horizontal section through the television receiver Figure 1 substantially as seen in the direction of the arrows along the line 22 thereof and illustrating the'mounting of the safety glass within the cabinet frame by means of the channel member of this invention;

Figure 3 is an enlarged view in cross section of one form of channel member made in accordance with the present invention;

Figure 4 is a view similar to Figure 2 illustrating a second embodiment of the invention wherein the channel member mounts both the safety glass and the mask within the cabinet frame opening; and

Figure 5 is an enlarged view in section of the channel member shown in Figure 4 of the drawing.

There is shown in Figure 1 of the drawing a perspective view of a television receiver generally designated by the numeral 10 and including a cabinet frame generally designated by the numeral 12. Cabinet frame 12 includes a pair of vertical frame members 14 and 16 disposed at the forward or viewing end thereof. Frame members 14 and 16 are joined by a pair of horizontal frame members 18 and 20. Frame members 14, 16, 18 and 20, and particularly the inner edges thereof, provide a frame opening 22 which is generally rectangular in shape and which receives safety glass 24 and mask 26. The viewing end of a television picture tube 28 can be seen through the glass in frame opening 22.

The safety glass 24 is mounted within the frame opening 22 by means of a pair of vertically extending channel members 30. As may be seen in Figure 2 of the drawing, the channel members 30 serve to hold and mount the safety glass 24 within the frame opening 22. In the constructionillustrated, the frame members 30 extend the full vertical extent of opening 22 and suitably fill any gapbetween the vertical edges of safety glass 24 and the inwardly facing walls- 32 and 34 of the vertical frame members 14 and 16.

Since frame members 30 are identical in construction, only one will. be described in detail and like reference numerals will be applied to both.

From Figure 3 of the drawings, it can be seen that channel member 30 includes a wall or body portion 36, the outer surface 38 of which is adapted to be disposed against the adjacent frame wall 32 or 34 as illustrated in Figure 2. Wall 36 extends the entire length of the the outer surface of flange 42 may be similarly disposed.-

vertical edge of safety glass 24. Formed on one edge of wall 36 is a first flange 49 which extends the entire length of wall 36. The other edge of wall 36 is provided with a similar flange 42 extending the entire length. thereof. Flanges 40 and 42 have the free edges 44 'and 46, respectively, disposed normally inwardly towardeach other a slight amount. For example, the outer surface of each wall 40 may be disposed at an angle of approximately 88 with respect to the plane of surface 38 and The distance between the inner surfaces 48 and 50 of flanges 40 and 42, respectively, at the greatest point of separation thereof is slightly greater than the thickness of safety glass 24, and the distance between walls 48 and 50 at edges 44 and 46 is slightly less than the thickness,

of safety glass 24. This insures that the free edges of flanges 40 and 42 will be firmly pressed .against the opposite surfaces of safety glass 24.

In order to insure that surface 38 of wall 36 is held againstthe associated cabinet frame surface, such as assmss surfaces 32 and 34, an integral projection or tail generallydesignated by the numeral 52 is provided. More specifically, formed integral with hte inner surface of wall 36 is a first tail flange 54. Flange 54 is attached to wall 36 a short distance from the junction between wall 36 and flange 40.- Tail flange 54 extends at an acute angle with respect to wall 36 and, for example, may be disposed at an angle of approximately 48 with respect thereto. Formed integral with tail flange 54 is a second tail flange 56 disposed at an obtuse angle with respect to tail flange 54, with the free end thereof directed and inclined toward wall 36. 1 In one preferred embodiment of the invention, the angle between flanges 54 and 56 is approximately 128.

In the installed position, the tail 52 and particularly the. junction 58 between tail flanges 54 and 56 is urged against the vertically disposed side wall 60 of safety glass 24. Channel member 30, and particularly tail 52 thereof, is sufliciently resilient so that tail 52 is deformed and deflected toward wall 36.by safety glass 24 after installation. This in turn presses wall 36, and particularly the outer surface 38 thereof, against the associated wall 32 or 34 defining a part of frame opening 22.

Preferably each channel'member 30 is formed from a suitable resilient plastic material and particularly a thermoplastic material such as cellulose acetate-butyrate. An example of a commercially available thermoplastic compound of this type is that sold by Tennessee Eastman Corporation under the trade name Tenite II. Other suitable resilient plastic materials can be used. The thermoplastic material may be extruded in continuous lengths having a cross section shaped as illustrated in Figure 3 of the drawing and suitable strips cut therefrom as needed.

It is to be understood that the dimensions of the channel member 30 will vary in accordance with the specific application in which it is utilized. In one preferred form of the invention, the maximum external width of wall 36 is 0.325 inch. The distance from surface 38 to the free edges 44 and 46 of flanges 40 and 42 is approximately 0.28 inch. The thickness of the U-shaped portion of the channel member 30, including wall 36 and flanges 40 and 42, is preferably 0.025 inch. The thickness of tail 52 is preferably 0.015 inch. The distance from the inner surface of wall 36 to junction 58 is, for example, 0.125 inch. Preferably the junction between wall 36 and each of flanges 40 and 42 is rounded as in junction 58.

Referring now to Figure 2 of the drawing, it will be seen that in the installed position flanges 40 and 42 are firmly pressed against the opposite faces of safety glass 24 to hold the glass therebetween. The opposite vertical walls 60 of glass 24 are pressed against tail 52 and particularly junction 58 thereof. The width of glass 24 is such as to deform the tail 52 of each channel member toward the associated wall 36. This action also serves to urge wall 36, and particularly surface 38 thereof, against the associated surfaces such as surfaces 32 and 34 of the vertical frame members 14 and 16. Thus channel members 30 completely fill the space between the side surfaces 60 of glass 24 and the vertical frame members 14 and 16. Safety glass 24 is resiliently supported and can be readily assembled on cabinet frame 12 and dismantled for repair or replacement of any of the parts.

i There is shown in Figures 4 and of the drawings a second embodiment of the invention wherein the channel members are, utilized to hold both the safety glass and a mask in position within the cabinet flame. Referring specifically to Figure 4 of the drawing, there is shown a pair of vertically disposed frame members 62 and 64 between which it is desired to install a safety glass 66 and a mask.68. Mask 68 includes a flange 70 which is shapedand adaptedto lie against the rear surface of glass 66 in the installed position. A pair of vertically extending channel members 72 is 'provided, the channel members being identical in: shape and construction and having like reference numerals applied to the various parts thereof in the drawing.

The specific construction of channel member 72 is best illustrated in Figure 5 of the drawing. Referring to that figure it is seen there is provided a generally U-shaped channel including a main wall 74. Extending with respect to wall 74 and may be disposed at an angle of approximately 88 with respect thereto. Formed integral with the other longitudinal edge of wall 74 is a second flange 78. The main portion of flange 78 is also disposed at an acute angle with respect to wall 74 and may be, for example, disposed at an angle of 82 with respect thereto. The outer end of flange 78 extends beyond the outer end 80 of flange 76 and more specifically, flange 78 terminates in a curved portion 82. The outermost end of curved portion 82 is directed away from flange 76 and terminates in an outwardly directed edge 84.

In the installed position flange 76 is disposed against the front surface of safety glass 66. The flange 78 is disposed behind flange 70 on mask 68 and more specifically,

the junction 86 between flange 78 and curved portion 82 i bears against flange 70. By this construction safety glass 66 and flange 70 of the mask 68 are permanently held 1 between flanges'76 and 78 of channel member 72;

Means is provided to urge channel wall 74 against the associated frame member such as frame member 62 or 64 in the form of a tail or projection generally designated by thev numeral 88. .Tail 88 includes a first flange 90: formed integrally with wall 74 and extending at an acute angle therefrom. Flange 90 is attached to wall 74 at a 1 point spaced a short distance away from flange 76 and extends generally outwardly toward flange 78. In a preferred form of the invention flange 90 is normally disposed at an angle of approximately 47 with respect] to wall 74. Formed integral with flange 90-is a second tail flange 92 which is directed back toward wall '74.

Flanges 90. and 92 are disposedat an obtuse angle with respect to each other and in a preferred embodiment are,

disposed at an angle of approximately 128. The outer edge 94 of flange 92 terminates at a point spaced from flange 78 whereby the entire tail or projection 88 can 1 be flexed toward and away from channel wall 74.

Channel member 72 can be made from the same materials as channel member 30 described above. In a preferred embodiment the thickness of the material forming the U-shaped portions of flange 72, including wall 74 and flanges 76 and 78, is 0.025 inch. The thickness of rounded and the radius of curvature thereof is approxitail 88 is preferably approximately 0.015 inch. The:

greatest extent of channel 72 is approximately 0.425 inch, and the length of flange 76 is approximately 0.28 inch. Preferably, the junction between wall 74 and flange 76 is mately 0.03 inch. Similarly, the junction between wall 74 and flange 78 is rounded and has a radius of curvature of approximately 0.07 inch. The radius of curvature of curved portion 82 is approximately 0.09 inch. The dis- I tance from the outer surface 96 of wall 74 to point 86 is approximately 0.37 inch, and the distance to edge 84 is I approximately 0.46 inch.

As is best seen in Figure 4 of the drawings, the vertically extending sides 98 of safety glass 66 bear against 1 tail 88 and particularly the junction 100 between flanges and 92 thereof. Tail 88 is resilient and can be flexed '1 The distance between edge 80 of flange 76 and point 86 of flange 78 in the normal unstressed condition of channel member 72 is substantially less than the combined thickness of safety glass 66 and mask flange 70. Therefore, flanges 76 and 78 are urged away from each other by safety glass 66 and mask flange 70 whereby to place them under stress. This serves in turn to press flange 70 of mask 68 firmly against glass 66 to hold these members in proper position relative to each other and within the associated cabinet frame.

The channel members 30 and 72 are both highly decorative and present smooth, clean lines at the portions thereof which are seen by a television viewer. More specifically it is flange 40 of channel member 30 and flange 76 of channel member 72 which are in position to be seen after installation. The decorative effect may be enhanced by coloring channel members 30 and 72.

In the drawing channel members have been shown applied only to the vertical extending edges of the safety glass and/or the combination of a safety glass and a mask. It is to be understood that in certain installations it will be desirable to apply a channel member to three and in certain cases even all four of the edges of the safety glass or the combination of the safety glass and the mask.

Although two preferred embodiments of the invention have been shown and described for purposes of illustration, it is to be understood that various changes and modifications can be made therein without departing from the spirit and scope of the invention. Accordingly, the invention is to be limited only as set forth in the following claims.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. In a television receiving set including a cabinet having an opening therein and a television picture tube viewable through the opening and a safety glass substantially filling the opening and disposed therein in front of the picture tube, a molded channel member formed of resilient material and disposed between an edge of the safety glass and the wall defining the opening, said molded channel member extending substantially the length of the edge of said safety glass, said channel member including a body portion disposed against the opening wall and having a width greater than the thickness of the safety glass, a pair of flanges extending outwardly from said body portion, said flanges at at least one point therealong being spaced apart a distance less than the thickness of said safety glass, said flanges being deflected outwardly away from each other bygid safety glass and resiliently urged against the opposite surfaces thereof, and a resilient projection formed on said body portion adjacent one of said flanges and extending outwardly from said body portion in the same direction as said pair of flanges and terminating at a point spaced inwardly from the outer edges of said flanges, said projection having a free end turned back toward said body portion and spaced away from the other of said pair of flanges, a portion of said projection engaging an edge of the safety glass and being deformed thereby toward said body portion, the distance between the point of contact of said projection with the safety glass and said body portion normally being greater than the distance between the associated edge of the safety glass and the associated opening wall whereby said channel member completely fills the space between the associated edge of the safety glass and the opening wall.

2. In a television receiving set, the combination comprising a cabinet having an opening therein, a television picture tube mounted in said cabinet and viewable through said opening, a safety glass substanitally filling the opening and disposed therein in front of the picture tube, a first molded channel member disposed along substantially the length of and between one edge of said safety glass and the associated opening wall, and a secand molded channel member disposed along substantially the length of and between the opposite edge of said safety glass and the associated opening wall, each of said channel members comprising a resilient substantially U--shaped body member including an outer wall disposed against the associated opening wall and a pair of flanges extending therefrom, the free ends of said flanges being directed toward each other and normally disposed apart a distance less than the thickness of said safety glass resiliently to grip the opposite surfaces of said safety glass, and a resilient tail formed on said outer wall and extending therefrom in the same direction as said flanges and engaging the associated edge of said safety glass, the distance between said outer wall and the point of contact between said tail and said safety glass normally being greater than the distance between said associated edge of said safety glass and the associated opening wall whereby said safety glass deforms the tail of the channel member on both sides thereof to urge said outer walls against the associated opening wall.

3. In a television receiving set including a cabinet having an opening therein and a television picture tube viewable through the opening and a mask having an outturned flanged in the opening and a safety glass substantially filling the opening and disposed therein in front of the picture tube and the mask, a channel member formed of resilient material and disposed between an edge of the safety glass and the associated edge of the mask flange and the wall defining the opening, said channel member including an outer wall disposed against the associated opening wall and a pair of flanges extending therefrom, one of said flanges contacting the outer surface of the safety glass and the other flange contacting the rear surface of the mask flange, the outer edge of said other flange being turned outwardly away from said one flange, said pair of flanges being normally directed toward each other and the points of contact thereof with the safety glass and the mask flange being normally disposed apart a distance less than the combined thickness of the safety glass and the mask flange resiliently to grip the associated surfaces thereof, and a resilient tail formed on said outer wall adjacent said one flange and extending outwardly from said outer wall in the same direction as said flanges and terminating at a point spaced inwardly from the outer edge of said one flange, said tail having a free end turned back toward said outer wall and spaced away from said other flange, a portion of said tail engaging the associated edge of the safety glass and being deformed thereby toward said outer wall, the distance between said outer wall and the point of contact between said tail and the safety glass normally being greater than the distance between the associated edge of the safety glass and the associated opening wall whereby the safety glass deforms the tail of the channel member to urge said outer wall against the associated opening wall.

4. In a television receiving set, the combination comprising a cabinet having an opening therein, a television picture tube mounted in said cabinet and viewable through said opening, a mask disposed in said opening and having a flange extending outwardly substantially to the walls defining said opening, a safety glass substantially filling the opening and disposed therein in front of the picture tube and said mask flange, a first channel member disposed between one edge of said safety glass and the associated opening wall, and a second channel member disposed between the opposite edge of said safety glass and the associated opening wall, each of said channel members comprising a resilient substantially U-shaped body member including an outer wall disposed against the associated opening wall and a pair of flanges extending therefrom, one of said flanges resiliently contacting the outer surface of said safety glass, the other of said flanges resiliently contacting the rear surface of said mask flange and extending beyond the outer edge of said one flange, the free end of said other flange being turned outwardly away from said one flange, the distance between the point of contact o f said one flange with said safety glass and the point of'contact between said other flange and said mask flange-normally being less than the combined thickness of the safety glass and the mask flange, and a resilient tail formed on said outer wall and extending therefrom in the same direction as said flanges and engaging the associated edge of said safety glass,

the distance between said outer wall and the point of 10 2,596,710

contact between said tail and said safety glass-normally being greater than the distance between said associated edge of said safety glass and the associated opening wall whereby said safety glass'deforms the tail of the channel member on both sides thereofto urge said outer walls 5 against the associated; opening wall.

Moricco et al May 13, 1952 Leighton Nov.'11, 1952 I