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US 6,638,577 B2Granted
Method of manufacturing golf club head
AssigneeSumitomo Rubber Industries, Ltd.
InventorsYoshinori Sano, Takashi Nishida
Life of this patent
Estimating the term…
Abstract
A method of manufacturing golf club heads comprises a process of coating golf club heads with a paint by passing the golf club heads through a space in which the paint is sprayed by an electrostatic spray coating machine so that the charged spray of the paint is attracted to the rotating golf club heads.
Claims4
A method of manufacturing golf club heads comprising
- coating golf club heads with a paint by passing is sprayed by an electrostatic spray coating machine wherein the golf club heads are grounded and the paint that is sprayed is electrically charged against the grounded golf club heads with an applied high voltage, and
- rotating the golf club heads in said space at a rotational speed of 3 to 20 rpm during passing the electrostatic spray coating machine, wherein when viewed from the electrostatic spray coating machine, the shadow of the rotating head is such that
- the ratio (W/H) of maximum width (W) to a maximum height (H) of the shadow is in a range of from 0.5 to 3.0 and
- a maximum inclination angle (q) of the axis (CL) of a shaft inserting hole of the head is in a range of from 20 to 50 degrees with respect to the rotational axis of the head.
1 more element
Dependencies are inferred from the claim text.