| 摘要 |
PROBLEM TO BE SOLVED: To provide a deflection yoke capable of reducing the cost by improving productivity. SOLUTION: In regard to this deflection yoke composed of a horizontal deflection coil 7 wound around an inner wall face of a bobbin 6 formed in a flare shape via crossover parts 7a, a plurality of protruding parts 6a are concentrically formed in plural stages protruding from the inner Wall face along the inner wall face of the bobbin 6 via predetermined spaces and holding the crossover parts 7a of the horizontal deflection coil 7 inside the spaces, and discharge holes 6b each having an area the same or more than an area of a projected cross section of each protruding parts 6a are formed on the bobbin 6 at positions corresponding to each protruding parts 6a.
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