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Deflection Yoke Locking Device

IP.com Disclosure Number: IPCOM000037998D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-31
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Bradley, ME: AUTHOR [+4]

Abstract

The concept described below eliminates problems associated with present yoke clamping techniques. The concept, shown in Fig. 1, utilizes a conical wedge to secure the yoke on the tube until it is cemented to the glass. Cementing insures against possible slippage.

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Deflection Yoke Locking Device

The concept described below eliminates problems associated with present yoke clamping techniques. The concept, shown in Fig. 1, utilizes a conical wedge to secure the yoke on the tube until it is cemented to the glass. Cementing insures against possible slippage.

Referring to Fig. 1, the cross-section of a deflection yoke is shown resting on the funnel of the CRT in the most forward position. Yoke 10 is flared toward the front to match the contour of the glass 20. The yoke includes a front end-cap 11, a ferrite core 12, a rear end-cap 13 and deflection coils 14. For simplicity, unimportant details like cable and pincushion corrector magnets are omitted. The bore of end-cap 13 is slightly tapered to accept a conical locking ring 15. The ring is made with a slit 16 to absorb glass tolerances. The ring can be inserted manually or mechanically with a cylindrical plunger which is driven with a controlled force. Ring material and dimensions are optimized to achieve maximum locking force and friction between the adjacent components.

Disclosed anonymously.

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