# US 5,484,113 A · Method and apparatus for winding wire around a deflection yoke

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- Number: US 5,484,113 A
- Document ID: US5484113A
- Status: Granted
- Kind: A
- Application number: 08/140,465
- Filed: 1993-10-25
- Granted: 1996-01-16
- Earliest claimed: 1992-11-06
- Assignees: Sony Corporation
- Inventors: Yasuhiro Watanabe
- Web page: https://patentgrep.com/patent/US5484113A

## CPC

- H01J 9/236: Manufacture of magnetic deflecting devices for cathode-ray tubes
- H01J 2209/2366: Machines therefor, e.g. winding, forming, welding, or the like
- Y10T 29/49071: by winding or coiling
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A winding apparatus for a deflection yoke comprises a nozzle for supplying a wire to be wound around the deflection yoke; and at least two guide units, each guiding the wire to a position where each winding wire is engaged with the deflection yoke. Each of the above guide units, preferably, has a function capable of being reversed by each 180.degree.. Further, the above guide units, preferably, have a common base, and are movable crosswise by one drive unit. Additionally, the above winding apparatus, preferably, includes a drive unit for operating the nozzle in the vertical direction. With this construction, it is possible to shorten the time required for winding operation, and to reduce the production cost for the deflection yoke.

## Claims

### Claim 1

A winding apparatus for a deflection yoke defining an x-axis and a z-axis with the z-axis being coaxial with the deflection yoke and the x-axis being orthogonal to the z-axis comprising;
a base;
a nozzle for supplying a wire to be wound around said deflection yoke;
a tensioner for supplying said wire to said nozzle;
a holder for holding said deflection yoke; and
two guide means, each guiding said wire to a different respective vertical position on said deflection yoke.

### Claim 2 (depends on 1)

A winding apparatus according to claim 1, wherein each of said guide means is capable of being reversed by 180.degree. about the x-axis.

### Claim 3 (depends on 1)

A winding apparatus according to claim 1, wherein said guide means have a common base which is movable in the x-and z- directions and is driven by an x-z feed unit.

### Claim 4 (depends on 1)

A winding apparatus according to claim 1, which includes an x-z feed unit for allowing nozzle movement in the x and z directions.

### Claim 5

A winding method for a deflection yoke defining an x-axis and a z-axis with the z-axis being coaxial with the deflection yoke and the x-axis being orthogonal to the z-axis comprising the steps of:
holding said deflection yoke by a holder;
supplying a wire from a tensioner to a nozzle;
winding said wire supplied from said nozzle around a portion of said deflection yoke to be wound with said wire while guiding said wire with a first guide means; and
winding said wire around a different vertical position of said deflection yoke while guiding said wire with a second guide means.

### Claim 6 (depends on 5)

A winding method according to claim 5, further comprising the steps of reversing each of said guide means by 180.degree. about the x-axis.