WO2007027183A1 - Spring for connecting a support frame to panel studs within a cathode ray tube - Google Patents
Spring for connecting a support frame to panel studs within a cathode ray tube Download PDFInfo
- Publication number
- WO2007027183A1 WO2007027183A1 PCT/US2005/031275 US2005031275W WO2007027183A1 WO 2007027183 A1 WO2007027183 A1 WO 2007027183A1 US 2005031275 W US2005031275 W US 2005031275W WO 2007027183 A1 WO2007027183 A1 WO 2007027183A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support frame
- attachment member
- ray tube
- cathode ray
- sidewall
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
- H01J29/073—Mounting arrangements associated with shadow masks
Definitions
- the invention generally relates to a cathode ray tube and more particularly to a spring for connecting a support frame to panel studs within a cathode ray tube.
- a conventional cathode ray tube comprises a glass envelope including a rectangular faceplate panel and a tubular neck connected by a funnel.
- the faceplate panel consists of a viewing faceplate and a peripheral flange or sidewall sealed to the funnel by a glass frit.
- the sidewall has a plurality of panel studs extending therefrom.
- a luminescent screen is carried by an inner surface of the viewing faceplate.
- a mask support frame assembly is removably mounted in predetermined spaced relation to the screen.
- the mask support frame assembly includes a support frame and a mask that has a plurality of apertures.
- An electron gun is centrally mounted within the neck to generate and direct three inline electron beams along convergent paths through the mask support frame assembly to the screen.
- the mask support frame assembly has been removeably mounted in predetermined spaced relation to the screen by a clip and a spring.
- the clip is mounted on the support frame either on opposing long and short sides of the support frame or on corners of the support frame.
- the spring extends between the clip and the sidewall and has a support frame attachment member attached to the clip and a sidewall attachment member engaged with the panel stud on the sidewall.
- the clip is welded to the support frame close to the panel stud and at a back of the frame to increase support of the spring and to compensate for the spatial distance between the support frame and the support frame attachment member caused by the positioning of the mask in relation to the screen.
- the clip is formed from a bi-metal material to provide thermal compensation for the expansion of the mask and the support frame during manufacture and use.
- the clip is formed from a homogeneous material when added thermal compensation is not required.
- the spring may be mounted to the support frame without the use of the clip. Li this instance, the support frame attachment member of the spring is directly mounted to the support frame and the sidewall attachment member is engaged with the panel stud on the sidewall.
- the spring is formed from a bi-metal material to provide thermal compensation for the expansion of the mask and the support frame during manufacture and use.
- the clips or the springs are formed from a bi-metal material to provide adequate thermal compensation, making the clips and the springs expensive to manufacture. Additionally, the addition of the clip increases manufacturing and assembly costs and increases the required length of the spring. It would therefore be desirable to develop a less expensive method for mounting the mask support frame assembly in predetermined spaced relation to the screen.
- the invention relates to a cathode ray tube comprising a faceplate panel including a viewing faceplate and a sidewall.
- the viewing faceplate has an inner surface with a luminescent screen.
- the sidewall has at least one panel stud extending therefrom.
- a mask has a plurality of apertures.
- the mask is attached to a substantially rectangular support frame.
- the support frame has a first wall extending substantially parallel to the sidewall.
- the first wall has a first end and a second end. The first end is positioned further away from the viewing faceplate than the second end.
- a homogeneous spring includes a support frame attachment member and a sidewall attachment member.
- the support frame attachment member is fixed to the first end such that the sidewall attachment member extends away from the viewing faceplate.
- the sidewall attachment member is engaged with the panel stud.
- Figure l is a partial sectional view of a first embodiment of a cathode ray tube according to the invention.
- Figure 2 is a partial section view of a mask support frame assembly of the cathode ray tube of Figure 1;
- Figure 3 is a partial section view of the mask frame assembly of a second embodiment of the cathode ray tube
- Figure 4 is a perspective view of a spring of the cathode ray tube of Figure 1;
- Figure 5 is a partial sectional view taken along line 5-5 of Figure 2;
- Figure 6 is a partial perspective view of the mask support frame assembly of a third embodiment of the cathode ray tube;
- Figure 7 is a partial sectional view taken along line 7-7 of Figure 6;
- Figure 8 is a perspective view of the spring of the cathode ray tube of Figure 6;
- Figure 9 is a partial perspective view of the mask support frame assembly of a fourth embodiment of the cathode ray tube;
- Figure 10 is a partial sectional view taken along line 10-10 of Figure 9.
- FIG. 1 shows a first embodiment of a cathode ray tube 1 according to the invention.
- the cathode ray tube 1 has a glass envelope 2 including a rectangular faceplate panel 3 and a tubular neck 4 connected by a funnel 5.
- the funnel 5 has an internal conductive coating (not shown) that extends from an anode button 6 toward the faceplate panel 3 and to the neck 4.
- the faceplate panel 3 consists of a viewing faceplate 8 and a peripheral flange or sidewall 9 with a panel seal edge 15.
- the panel seal edge 15 is sealed to a funnel seal edge 17 by a glass frit 7.
- the sidewall 9 has a plurality of panel studs 18 extending therefrom.
- a luminescent screen 12 is carried by an inner surface of the viewing faceplate 8.
- the screen 12 may be, for example, a line screen with phosphor lines arranged in triads. Each of the triads includes a phosphor stripe of each of three colors (red, green, and blue).
- a mask support frame assembly 10 is removably mounted in predetermined spaced relation to the screen 12.
- the mask support frame assembly 10 includes a mask 19 and a support frame 20.
- the support frame 20 is substantially rectangular and comprises opposing short sides 31, opposing long sides 32, and corners 30 formed there between.
- the support frame 20 includes a first wall 22 and a second wall 23.
- the first wall 22 extends substantially perpendicular to the second wall 23 and substantially parallel to the sidewall 9.
- the first wall 22 has a first end 24 and a second end 29. The first end 24 is positioned further away from the viewing faceplate 29 than the second end 29.
- a portion of the mask 19 is attached to the first wall 22.
- the mask 19 has a plurality of apertures (not shown) and may be formed, for example, from a metal alloy having a low coefficient of thermal expansion, such as INVAR. It will be appreciated by those skilled in the art that the mask support frame assembly 10 may be any of a variety of conventional tension or shadow mask assemblies, which are well known in the art.
- a glass mount 16 containing an electron gun 13, shown schematically by dashed lines in Figure 1 is centrally mounted within the neck 4 to generate and direct three inline electron beams, a center beam and two side or outer beams, along convergent paths through the mask support frame assembly 10 to the screen 12.
- the cathode ray tube 1 is designed to be used with an external magnetic deflection yoke 14 shown in a neighborhood of the funnel-to-neck junction. When activated, the yoke 14 subjects the three beams to magnetic fields that cause the beams to scan horizontally and vertically in a rectangular raster over the screen 12.
- the mask support frame assembly 10 is removably mounted in predetermined spaced relation to the screen 12 by a spring 21 that extends between the mask support frame assembly 10 and the sidewalls 9.
- the spring 21 includes a support frame attachment member 25, a resilient member 26, and a sidewall attachment member 27.
- the resilient member 26 extends at an inclination between the support frame attachment member 25 and the sidewall attachment member 27, as shown in Figure 5.
- the sidewall attachment member 25 includes a panel stud receiving aperture 28.
- the spring 21 may be formed from a homogeneous material with a high modulus of elasticity, such as stainless steel.
- the panel stud 18 as shown in Fig. 5 is positioned further away for the viewing faceplate 8 than the first end 24 of the support frame 20.
- one of the springs 21 is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20. As shown in Figure 5, each of the springs 21 extends substantially parallel to a Z-axis (Figure 1) of the cathode ray tube 1.
- the support frame attachment member 25 is fixed to the first end 24 of the first wall 22 such that the sidewall attachment member 27 extends away from the first end 24 and the faceplate 8.
- the support frame attachment member 25 may be attached to the first end 24, for example, by welding.
- the sidewall attachment member 27 is fixed to the corresponding panel stud 18 by engaging the panel stud receiving aperture 28 with the panel stud 18.
- Figure 3 shows a second embodiment of the cathode ray tube 1 according to the invention. Elements of the second embodiment that are identical to elements of the first embodiment will be described using the same reference numerals and will not be explained in further detail.
- the opposing short sides 31 and the opposing long sides 32 of the support frame 20 are provide with the springs 21.
- Each of the springs 21 extends substantially parallel to the Z-axis of the cathode ray tube 1. Because the springs 21 are attached in substantially the same manner to the support frame 20 and the panel studs 18, as described in the first embodiment, further description thereof will be omitted.
- Figures 6-7 show a third embodiment of the cathode ray tube 1 according to the invention.
- the corners 30 of the support frame 20 can include an embossed first wall 22'.
- the first wall 22' has a first end 24' and a second end 29'.
- An inclined portion 33' is formed between the first end 24' and the second end 29'. The first end 24' being positioned further away from the viewing faceplate than the second end 29'.
- the inclined portion 33' is inclined such that the second end 29' is laterally positioned further way from the mask 19 than the first end 24'.
- one of the springs 21 is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20.
- the support frame attachment member 25 is fixed to the second end 29' of the first wall 22' so that the sidewall attachment member 27 extends away from the second end 29' and the faceplate 8.
- the support frame attachment member 25 may be attached to the second end 29', for example, by welding.
- the resilient member 26 can be inclined between the support frame attachment member 25 and the sidewall attachment member 27. Because the springs 21 are attached in substantially the same manner to the panel studs 18, as described in the first embodiment, further description thereof will be omitted.
- the embossed first wall 22' may alternatively be provided along the opposing short sides 31 and the opposing long sides 32 of the support frame 20. Because the springs 21 are attached in substantially the same manner to the first wall 22' and the panel studs 18, as described in the third embodiment, further description thereof will be omitted.
- Figures 8-10 show a fourth embodiment of the cathode ray tube 1 according to the invention. Elements of the fourth embodiment that are identical to elements of the first embodiment will be described using the same reference numerals and will not be explained in further detail.
- the corners 30 of the support frame 20 include an embossed first wall 22".
- the first wall 22" has a first end 24" and a second end 29".
- a stud clearance groove 35" extends between the first end 24' and the second end 29'.
- the stud clearance groove 35" is recessed toward the mask 19.
- the spring 21 " is substantially planar and includes a support frame attachment member 25 ' ' and a sidewall attachment member 27".
- a slot 34" that corresponds with the stud clearance groove 35 extends from the support frame attachment member 25" toward the sidewall attachment member 27".
- the sidewall attachment member 25" includes a panel stud receiving aperture 28".
- the spring 21 " may be formed from a homogeneous material with a high modulus of elasticity, such as stainless steel.
- one of the springs 21 " is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20.
- the support frame attachment member 25" is fixed to the first end 24" of the first wall 22" so that the sidewall attachment member 27" extends away from the first end 24" and the faceplate 8.
- the support frame attachment member 25" may be attached to the first end 24", for example, by welding. Because the springs 21 " are attached in substantially the same manner to the panel studs 18, as described in the first embodiment, further description thereof will omitted.
- the embossed first wall 22" may alternatively be provided along the opposing short sides 31 and the opposing long sides 32 of the support frame 20. Because the springs 21 " are attached in substantially the same manner to the first wall 22' and the panel studs 18, as described in the fourth embodiment, further description thereof will be omitted.
- thermal compensation of the support frame and mask during the manufacture and use of the cathode ray tube 1 can be provided solely with the homogeneous spring 21, 21". Because the spring 21, 21 " is fixed to the first end 24, 24" of the support frame 20, the spring 21, 21" is not only mounted at the strongest point on the support frame 20 but also is capable of having a reduced length. Additionally, because the spring 21, 21" is formed of a homogeneous material, manufacturing costs can be reduced.
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
A cathode ray tube comprises a faceplate panel including a viewing faceplate and a sidewall. The viewing faceplate has an inner surface with a luminescent screen. The sidewall has at least one panel stud extending therefrom. A mask has a plurality of apertures. The mask is attached to a substantially rectangular support frame. The support frame has a first wall extending substantially parallel to the sidewall. The first wall has a first end and a second end. The first end is positioned further away from the viewing faceplate than the second end. A homogeneous spring includes a support frame attachment member and a sidewall attachment member. The support frame attachment member is fixed to the first end such that the sidewall attachment member extends away from the viewing faceplate. The sidewall attachment member is engaged with the panel stud.
Description
SPRING FOR CONNECTING A SUPPORT FRAME TO PANEL STUDS WITHIN A CATHODE RAY TUBE
Field of the Invention
The invention generally relates to a cathode ray tube and more particularly to a spring for connecting a support frame to panel studs within a cathode ray tube.
Background of the Invention
A conventional cathode ray tube comprises a glass envelope including a rectangular faceplate panel and a tubular neck connected by a funnel. The faceplate panel consists of a viewing faceplate and a peripheral flange or sidewall sealed to the funnel by a glass frit. The sidewall has a plurality of panel studs extending therefrom. A luminescent screen is carried by an inner surface of the viewing faceplate. A mask support frame assembly is removably mounted in predetermined spaced relation to the screen. The mask support frame assembly includes a support frame and a mask that has a plurality of apertures. An electron gun is centrally mounted within the neck to generate and direct three inline electron beams along convergent paths through the mask support frame assembly to the screen. Traditionally, the mask support frame assembly has been removeably mounted in predetermined spaced relation to the screen by a clip and a spring. The clip is mounted on the support frame either on opposing long and short sides of the support frame or on corners of the support frame. The spring extends between the clip and the sidewall and has a support frame attachment member attached to the clip and a sidewall attachment member engaged with the panel stud on the sidewall. The clip is welded to the support frame close to the panel stud and at a back of the frame to increase support of the spring and to compensate for the spatial distance between the support frame and the support frame attachment member caused
by the positioning of the mask in relation to the screen. The clip is formed from a bi-metal material to provide thermal compensation for the expansion of the mask and the support frame during manufacture and use. The clip is formed from a homogeneous material when added thermal compensation is not required. Alternatively, the spring may be mounted to the support frame without the use of the clip. Li this instance, the support frame attachment member of the spring is directly mounted to the support frame and the sidewall attachment member is engaged with the panel stud on the sidewall. The spring is formed from a bi-metal material to provide thermal compensation for the expansion of the mask and the support frame during manufacture and use. Typically the clips or the springs are formed from a bi-metal material to provide adequate thermal compensation, making the clips and the springs expensive to manufacture. Additionally, the addition of the clip increases manufacturing and assembly costs and increases the required length of the spring. It would therefore be desirable to develop a less expensive method for mounting the mask support frame assembly in predetermined spaced relation to the screen.
Summary of the Invention
The invention relates to a cathode ray tube comprising a faceplate panel including a viewing faceplate and a sidewall. The viewing faceplate has an inner surface with a luminescent screen. The sidewall has at least one panel stud extending therefrom. A mask has a plurality of apertures. The mask is attached to a substantially rectangular support frame. The support frame has a first wall extending substantially parallel to the sidewall. The first wall has a first end and a second end. The first end is positioned further away from the viewing faceplate than the second end. A homogeneous spring includes a support frame attachment member and a sidewall attachment member. The support frame attachment
member is fixed to the first end such that the sidewall attachment member extends away from the viewing faceplate. The sidewall attachment member is engaged with the panel stud.
Brief Description of the Drawings The invention will now be described by way of example with reference to the accompanying figures of which:
Figure l is a partial sectional view of a first embodiment of a cathode ray tube according to the invention;
Figure 2 is a partial section view of a mask support frame assembly of the cathode ray tube of Figure 1;
Figure 3 is a partial section view of the mask frame assembly of a second embodiment of the cathode ray tube;
Figure 4 is a perspective view of a spring of the cathode ray tube of Figure 1; Figure 5 is a partial sectional view taken along line 5-5 of Figure 2; Figure 6 is a partial perspective view of the mask support frame assembly of a third embodiment of the cathode ray tube;
Figure 7 is a partial sectional view taken along line 7-7 of Figure 6; Figure 8 is a perspective view of the spring of the cathode ray tube of Figure 6; Figure 9 is a partial perspective view of the mask support frame assembly of a fourth embodiment of the cathode ray tube; and
Figure 10 is a partial sectional view taken along line 10-10 of Figure 9.
Detailed Description of the Invention
Figure 1 shows a first embodiment of a cathode ray tube 1 according to the invention. The cathode ray tube 1 has a glass envelope 2 including a rectangular faceplate panel 3 and a
tubular neck 4 connected by a funnel 5. The funnel 5 has an internal conductive coating (not shown) that extends from an anode button 6 toward the faceplate panel 3 and to the neck 4. The faceplate panel 3 consists of a viewing faceplate 8 and a peripheral flange or sidewall 9 with a panel seal edge 15. The panel seal edge 15 is sealed to a funnel seal edge 17 by a glass frit 7. The sidewall 9 has a plurality of panel studs 18 extending therefrom. A luminescent screen 12 is carried by an inner surface of the viewing faceplate 8. The screen 12 may be, for example, a line screen with phosphor lines arranged in triads. Each of the triads includes a phosphor stripe of each of three colors (red, green, and blue).
A mask support frame assembly 10 is removably mounted in predetermined spaced relation to the screen 12. The mask support frame assembly 10 includes a mask 19 and a support frame 20. As shown in Figure 2, the support frame 20 is substantially rectangular and comprises opposing short sides 31, opposing long sides 32, and corners 30 formed there between. As shown in Figure 5, the support frame 20 includes a first wall 22 and a second wall 23. The first wall 22 extends substantially perpendicular to the second wall 23 and substantially parallel to the sidewall 9. The first wall 22 has a first end 24 and a second end 29. The first end 24 is positioned further away from the viewing faceplate 29 than the second end 29. A portion of the mask 19 is attached to the first wall 22. The mask 19 has a plurality of apertures (not shown) and may be formed, for example, from a metal alloy having a low coefficient of thermal expansion, such as INVAR. It will be appreciated by those skilled in the art that the mask support frame assembly 10 may be any of a variety of conventional tension or shadow mask assemblies, which are well known in the art.
A glass mount 16 containing an electron gun 13, shown schematically by dashed lines in Figure 1 , is centrally mounted within the neck 4 to generate and direct three inline electron beams, a center beam and two side or outer beams, along convergent paths through the mask support frame assembly 10 to the screen 12. The cathode ray tube 1 is designed to be used
with an external magnetic deflection yoke 14 shown in a neighborhood of the funnel-to-neck junction. When activated, the yoke 14 subjects the three beams to magnetic fields that cause the beams to scan horizontally and vertically in a rectangular raster over the screen 12.
The mask support frame assembly 10 is removably mounted in predetermined spaced relation to the screen 12 by a spring 21 that extends between the mask support frame assembly 10 and the sidewalls 9. As shown in Figure 4, the spring 21 includes a support frame attachment member 25, a resilient member 26, and a sidewall attachment member 27. The resilient member 26 extends at an inclination between the support frame attachment member 25 and the sidewall attachment member 27, as shown in Figure 5. The sidewall attachment member 25 includes a panel stud receiving aperture 28. The spring 21 may be formed from a homogeneous material with a high modulus of elasticity, such as stainless steel. Also, the panel stud 18 as shown in Fig. 5 is positioned further away for the viewing faceplate 8 than the first end 24 of the support frame 20.
As shown in Figure 2, one of the springs 21 is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20. As shown in Figure 5, each of the springs 21 extends substantially parallel to a Z-axis (Figure 1) of the cathode ray tube 1. The support frame attachment member 25 is fixed to the first end 24 of the first wall 22 such that the sidewall attachment member 27 extends away from the first end 24 and the faceplate 8. The support frame attachment member 25 may be attached to the first end 24, for example, by welding. The sidewall attachment member 27 is fixed to the corresponding panel stud 18 by engaging the panel stud receiving aperture 28 with the panel stud 18.
Figure 3 shows a second embodiment of the cathode ray tube 1 according to the invention. Elements of the second embodiment that are identical to elements of the first embodiment will be described using the same reference numerals and will not be explained in further detail. As shown in Figure 3, the opposing short sides 31 and the opposing long sides
32 of the support frame 20 are provide with the springs 21. Each of the springs 21 extends substantially parallel to the Z-axis of the cathode ray tube 1. Because the springs 21 are attached in substantially the same manner to the support frame 20 and the panel studs 18, as described in the first embodiment, further description thereof will be omitted. Figures 6-7 show a third embodiment of the cathode ray tube 1 according to the invention. Elements of the third embodiment that are identical to elements of the first embodiment will be described using the same reference numerals and will not be explained in further detail. As shown in Figures 6-7, the corners 30 of the support frame 20 can include an embossed first wall 22'. The first wall 22' has a first end 24' and a second end 29'. An inclined portion 33' is formed between the first end 24' and the second end 29'. The first end 24' being positioned further away from the viewing faceplate than the second end 29'. The inclined portion 33' is inclined such that the second end 29' is laterally positioned further way from the mask 19 than the first end 24'.
As shown in Figure 6, one of the springs 21 is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20. As shown in Figure 7, the support frame attachment member 25 is fixed to the second end 29' of the first wall 22' so that the sidewall attachment member 27 extends away from the second end 29' and the faceplate 8. The support frame attachment member 25 may be attached to the second end 29', for example, by welding. The resilient member 26 can be inclined between the support frame attachment member 25 and the sidewall attachment member 27. Because the springs 21 are attached in substantially the same manner to the panel studs 18, as described in the first embodiment, further description thereof will be omitted.
Although not shown in the illustrated embodiment, it will be appreciated by those skilled in the art that the embossed first wall 22' may alternatively be provided along the opposing short sides 31 and the opposing long sides 32 of the support frame 20. Because the
springs 21 are attached in substantially the same manner to the first wall 22' and the panel studs 18, as described in the third embodiment, further description thereof will be omitted. Figures 8-10 show a fourth embodiment of the cathode ray tube 1 according to the invention. Elements of the fourth embodiment that are identical to elements of the first embodiment will be described using the same reference numerals and will not be explained in further detail. As shown in Figure 9, the corners 30 of the support frame 20 include an embossed first wall 22". The first wall 22" has a first end 24" and a second end 29". A stud clearance groove 35" extends between the first end 24' and the second end 29'. The stud clearance groove 35" is recessed toward the mask 19. As shown in Figure 8, the spring 21 " is substantially planar and includes a support frame attachment member 25 ' ' and a sidewall attachment member 27". A slot 34" that corresponds with the stud clearance groove 35 extends from the support frame attachment member 25" toward the sidewall attachment member 27". The sidewall attachment member 25" includes a panel stud receiving aperture 28". The spring 21 " may be formed from a homogeneous material with a high modulus of elasticity, such as stainless steel.
As shown in Figure 9, one of the springs 21 " is provided at each of the corners 30 between the short sides 31 and the long sides 32 of the support frame 20. As shown in Figure 10, the support frame attachment member 25" is fixed to the first end 24" of the first wall 22" so that the sidewall attachment member 27" extends away from the first end 24" and the faceplate 8. The support frame attachment member 25" may be attached to the first end 24", for example, by welding. Because the springs 21 " are attached in substantially the same manner to the panel studs 18, as described in the first embodiment, further description thereof will omitted.
Although not shown in the illustrated embodiment, it will be appreciated by those skilled in the art that the embossed first wall 22" may alternatively be provided along the
opposing short sides 31 and the opposing long sides 32 of the support frame 20. Because the springs 21 " are attached in substantially the same manner to the first wall 22' and the panel studs 18, as described in the fourth embodiment, further description thereof will be omitted.
In the cathode ray tube 1 according to the various embodiments of the invention, thermal compensation of the support frame and mask during the manufacture and use of the cathode ray tube 1 can be provided solely with the homogeneous spring 21, 21". Because the spring 21, 21 " is fixed to the first end 24, 24" of the support frame 20, the spring 21, 21" is not only mounted at the strongest point on the support frame 20 but also is capable of having a reduced length. Additionally, because the spring 21, 21" is formed of a homogeneous material, manufacturing costs can be reduced.
The foregoing illustrates some of the possibilities for practicing the invention. Many other embodiments are possible within the scope and spirit of the invention. It is, therefore, intended that the foregoing description be regarded as illustrative rather than limiting, and that the scope of the invention is given by the appended claims together with their full range of equivalents.
Claims
1. A cathode ray tube, comprising: a faceplate panel including a viewing faceplate and a sidewall, the viewing faceplate having an inner surface with a luminescent screen, the sidewall having at least one panel stud extending therefrom; a mask having a plurality of apertures, the mask being attached to a substantially rectangular support frame, the support frame having a first wall extending substantially parallel to the sidewall, the first wall having a first end and a second end, the first end being positioned further away from the viewing faceplate than the second end; and a homogeneous spring including a support frame attachment member and a sidewall attachment member, the support frame attachment member being fixed to the first end such that the sidewall attachment member extends away from the viewing faceplate, the sidewall attachment member being engaged with the panel stud.
2. The cathode ray tube of claim 1 , wherein the spring includes a resilient member extending at an inclination between the support frame attachment member and the sidewall attachment member.
3. The cathode ray tube of claim 1 , wherein the spring is formed from stainless steel.
4. The cathode ray tube of claim 1 , wherein the support frame includes opposing short sides, opposing long sides, and corners formed there between, the spring being fixed to at least one of the corners.
5. The cathode ray tube of claim 1 , wherein the support frame includes opposing short sides, opposing long sides, and corners formed there between, the spring being fixed to at least one of the opposing long sides or the opposing short sides.
6. The cathode ray tube of claim 1 , wherein the panel stud is positioned further away from the viewing faceplate than the support frame.
7. The cathode ray tube of claim 1, wherein the spring is welded to the first end.
8. The cathode ray tube of claim 1 , wherein the sidewall attachment member includes a panel stud receiving aperture for engaging the panel stud.
9. The cathode ray tube of claim 1, wherein support frame includes a second wall extending substantially perpendicular to the first wall.
10. The cathode ray tube of claim 1 , wherein the first wall includes a stud clearance groove extending between the first end and the second end.
11. The cathode ray tube of claim 1 , wherein the spring includes a slot that extends from the support frame attachment member toward the sidewall attachment member.
12. A cathode ray tube, comprising: a faceplate panel including a viewing faceplate and a sidewall, the viewing faceplate having an inner surface with a luminescent screen, the sidewall having at least one panel stud extending therefrom; a mask having a plurality of apertures, the mask being attached to a substantially rectangular support frame, the support frame having a first wall extending substantially parallel to the sidewall, the first wall having a first end, a second end, and an inclined portion formed between the first end and the second end, the first end being positioned further away from the viewing faceplate than the second end; and a homogeneous spring including a support frame attachment member and a sidewall attachment member; the support frame attachment member being fixed to the second end such that the sidewall attachment member extends away from the viewing faceplate, the sidewall attachment member being engaged with the panel stud.
13. The cathode ray tube of claim 12, wherein the spring includes a resilient member extending at an inclination between the support frame attachment member and the sidewall attachment member.
14. The cathode ray tube of claim 12, wherein the spring is formed from stainless steel.
15. The cathode ray tube of claim 12, wherein the support frame includes opposing short sides, opposing long sides, and corners formed there between, the spring being fixed to at least one of the corners.
16. The cathode ray tube of claim 12, wherein the support frame includes opposing short sides, opposing long sides, and corners formed therebetween, the spring being fixed to at least one of the opposing long sides or the opposing short sides.
17. The cathode ray tube of claim 12, wherein the panel stud is positioned further away from the viewing faceplate than the support frame.
18. The cathode ray tube of claim 12, wherein the spring is welded to the second end.
19. The cathode ray tube of claim 12, wherein the sidewall attachment member includes a panel stud receiving aperture for engaging the panel stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2005/031275 WO2007027183A1 (en) | 2005-08-30 | 2005-08-30 | Spring for connecting a support frame to panel studs within a cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2005/031275 WO2007027183A1 (en) | 2005-08-30 | 2005-08-30 | Spring for connecting a support frame to panel studs within a cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007027183A1 true WO2007027183A1 (en) | 2007-03-08 |
Family
ID=36215697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2005/031275 WO2007027183A1 (en) | 2005-08-30 | 2005-08-30 | Spring for connecting a support frame to panel studs within a cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2007027183A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015044A (en) * | 1999-06-29 | 2001-01-19 | Toshiba Corp | Color cathode-ray tube |
| EP1209717A1 (en) * | 2000-06-01 | 2002-05-29 | Matsushita Electric Industrial Co., Ltd. | Cathode-ray tube |
| US20030057818A1 (en) * | 2001-09-25 | 2003-03-27 | Yoichi Ito | Color cathode ray tube having an improved shadow mask supporting structure |
| WO2003071573A1 (en) * | 2002-02-19 | 2003-08-28 | Matsushita Electric Industrial Co., Ltd. | Color cathode ray tube |
| JP2004288590A (en) * | 2003-03-25 | 2004-10-14 | Matsushita Electric Ind Co Ltd | Collar picture tube |
-
2005
- 2005-08-30 WO PCT/US2005/031275 patent/WO2007027183A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001015044A (en) * | 1999-06-29 | 2001-01-19 | Toshiba Corp | Color cathode-ray tube |
| EP1209717A1 (en) * | 2000-06-01 | 2002-05-29 | Matsushita Electric Industrial Co., Ltd. | Cathode-ray tube |
| US20030057818A1 (en) * | 2001-09-25 | 2003-03-27 | Yoichi Ito | Color cathode ray tube having an improved shadow mask supporting structure |
| WO2003071573A1 (en) * | 2002-02-19 | 2003-08-28 | Matsushita Electric Industrial Co., Ltd. | Color cathode ray tube |
| JP2004288590A (en) * | 2003-03-25 | 2004-10-14 | Matsushita Electric Ind Co Ltd | Collar picture tube |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 16 8 May 2001 (2001-05-08) * |
| PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) * |
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