Golf club head
A head includes a head body and a face plate fixed to the head body. The face plate includes a plate front surface, a plate back surface, and a plate side surface. The plate back surface includes a center of figure. The head body includes a receiving surface which supports the plate back surface from rear. An outer peripheral edge part of the plate back surface includes a projection part which abuts on the receiving surface. If a toe-side region, a top-side region, and a sole-side region of the projection part are defined as a first section, and a heel-side region of the projection part is defined as a second section, then a width of the projection part is varied in the first section.
1. A golf club head comprising:
a head body; and
a face plate fixed to the head body,
wherein:
the face plate includes a plate front surface having a hitting face, a plate back surface which is a surface opposite to the plate front surface, and a plate side surface;
the plate back surface includes a center of figure;
the head body includes a receiving surface which supports the plate back surface from a rear;
an outer peripheral edge part of the plate back surface includes a projection part which abuts on the receiving surface;
the head body further includes:
a body side surface that is opposed to the plate side surface, and the body side surface is provided over a whole circumference of the face plate; and
a plastic deforming part,
wherein a peripheral part of the plate front surface includes a level difference surface that is located at a rear with respect to the hitting face, and the plastic deforming part is located at a front of the level difference surface,
wherein a plate thickness of the projection part is greater than a plate thickness of an inner side part that is located on an inner side of the outer peripheral edge part, and
wherein a toe-side region, a top-side region, and a sole-side region of the projection part are defined as a first section, and a heel-side region of the projection part is defined as a second section, and wherein a width of the projection part is varied in the first section.
2. The golf club head according to claim 1 , wherein the width of the projection part is varied in the sole-side region.
3. The golf club head according to claim 1 ,
wherein:
the projection part includes a center disposing part located so as to include the toe-heel direction position of the center of figure, a heel disposing part located on a heel side with respect to the center of figure, and a toe disposing part located on a toe side with respect to the center of figure;
a width of the center disposing part is greater than a width of the heel disposing part; and
the width of the center disposing part is greater than a width of the toe disposing part.
4. The golf club head according to claim 3 , wherein a width of the center disposing part is equal to or greater than 1 mm but equal to or less than 8 mm.
5. The golf club head according to claim 3 , wherein a width of the heel disposing part and the toe disposing part are equal to or greater than 0.5 mm but equal to or less than 5 mm.
6. The golf club head according to claim 3 , wherein the center disposing part, the heel disposing part and the toe disposing part are located in the sole-side region.
7. The golf club head according to claim 1 , wherein an average width of the projection part in the sole-side region is different from an average width of the projection part in the top-side region.
8. The golf club head according to claim 1 , wherein an average width of the projection part in the sole-side region is smaller than an average width of the projection part in the top-side region.
9. The golf club head according to claim 8 , wherein the average width of the projection part in the sole-side region is equal to or greater than 0.5 mm but equal to or less than 6 mm.
10. The golf club head according to claim 8 , wherein the average width of the projection part in the top-side region is equal to or greater than 1 mm but equal to or less than 8 mm.
11. The golf club head according to claim 1 , wherein an average width of the projection part in the heel-side region is smaller than an average width of the projection part in the toe-side region.
12. The golf club head according to claim 1 , wherein the golf club head satisfies the following (a) and/or (b):
(a) a width of the projection part in the heel-side region is varied, and a portion of which the width is minimal is located below the center of figure,
(b) a width of the projection part in the toe-side region is varied, and a portion of which the width is minimal is located below the center of figure.
13. The golf club head according to claim 1 , wherein an average width of the projection part in the first section is greater than an average width of the projection part in the second section.