Electric lamp or space discharge component or device manufacturi – Apparatus – Assembly means
Patent
1986-12-24
1988-09-06
Rowan, Kurt
Electric lamp or space discharge component or device manufacturi
Apparatus
Assembly means
445 30, H01J 900
Patent
active
047689862
ABSTRACT:
Apparatus for use in manufacturing color picture tubes to mount a shadow mask within the tube panel to enable repeated removal and replacement. The panel is placed into position overlying the shadow mask so that the inwardly-directed pins on the interior of the panel are in general vertical registry with the apertured spring elements about the outer periphery of the shadow mask. An alignment stand is provided for each spring element to vertically align each spring element with its corresponding panel pin. Each alignment stand includes a dummy pin which may be inserted into the aperture of the spring element of the shadow mask and a rod arm having a guide groove which may be raised so that at its upper limit position the arm provides guide grooves in which the inwardly projecting pins of the panel may be engaged. Clamping elements with upwardly facing V-shaped grooves are provided to engage over the dummy pin and be displaced toward the mask so as to deflect the spring members inwardly to disengage the dummy pins which are then retracted. The mask with the spring elements deflected inwardly is then raised until the V-shaped groove of the clamp members engage the panel pin so that the clamp may be withdrawn allowing the spring members to engage the panel pins to mount the mask in the panel.
REFERENCES:
patent: 4138774 (1979-02-01), Oyama
patent: 4164060 (1979-08-01), Hartta
patent: 4356606 (1982-11-01), Dougherty
patent: 4406638 (1983-09-01), DeAngelis
patent: 4451242 (1984-05-01), Miyazawa
patent: 4451243 (1984-05-01), D'Augustine et al.
patent: 4605879 (1986-08-01), Rath
patent: 4610636 (1986-09-01), Gaig
patent: 4639230 (1987-01-01), Meyle
patent: 4648346 (1987-03-01), Miyazawa
Rowan Kurt
Tsubakimoto Chain Co.
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