Apparatus and method for shadow mask insertion

Details Apparatus and method for shadow mask insertion Apparatus and method for shadow mask insertion

1980-07-25

1987-01-27

McQuade, John

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 68, H01J 900

Patent

active

046392300

ABSTRACT:
Apparatus and method are disclosed for use in the manufacture of a color cathode ray picture tube, the apparatus providing for inserting a shadow mask into the face panel of the tube. Means are disclosed for seeking the apertures of the leaf-type springs extending from the frame and locating the axes of the apertures and locking the apertures at predetermined points in a first substantially horizontal plane. The stud-locating means include V-groove tip means for locating, positioning and cradling the studs in the second plane with the axes of the studs in approximate vertical alignment with the predetermined points. Elevator means provide for raising the mask to an upper assembly position to translate the planes into approximate coplanarity, and bring the axes of the apertures into approximate coincidence with the axes of the studs before release of the springs. Dimensional deviations of the mask and panel are nullified by locking the axes of the apertures and cradling the studs in approximate coaxial coincidence for positive consistent and unequivocal mutual engagement of the mask with the panel.

REFERENCES:
patent: 3224755 (1965-12-01), Schweitzer
patent: 3838483 (1974-10-01), Barawski et al.
patent: 3899812 (1975-08-01), Barawski et al.
patent: 4130919 (1978-12-01), Oyama
patent: 4138774 (1979-02-01), Oyama
patent: 4164060 (1979-08-01), Hartta
patent: 4188695 (1980-02-01), Oyama
patent: 4322876 (1982-04-01), Schmidt et al.

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