Golf club head and manufacturing method thereof
A golf club head and scoring technology, which is applied to golf balls, golf clubs, rackets, etc., can solve problems such as reducing production efficiency and prolonging cutting operation time.
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no. 1 Embodiment approach
[0051] figure 1Among them, (a) is a front view of the blank of the golf club head according to the first embodiment seen from the direction facing the face; (b) is a front view of the golf club head according to the first embodiment seen from the direction facing the face (c) is a partial enlarged sectional view along line C-C in (a); (d) and (e) are partial enlarged sectional views along line D-D and E-E in (b) respectively; (f) is a partial enlarged sectional view along line C-C in (b) (d) Sectional view of line F-F; figure 2 (a) is along figure 1 Sectional view of line II-II in (b); figure 2 Middle (b) is a cross-sectional view showing another shape of the concave hole.
[0052] figure 1 middle (a)~ figure 2 The golf club head 10 shown in (a) is an iron golf club head, such as figure 1 As shown in (b), a plurality of score lines 12 are formed on the face portion 11 by cutting, and these score lines 12 are formed along the toe-heel direction and are parallel to ...
no. 2 Embodiment approach
[0062] image 3 Among them, (a) is a front view of the blank golf club head 20R according to the second embodiment seen from the direction of the facing surface 21; (b) is a view of the golf club head 20 of the second embodiment from the facing surface. The front view seen from the direction; (c) is a partial enlarged section view along the C-C line in (a); (d), (e) are the partial enlarged section views along the D-D line and E-E line in (b); (f) It is a cross-sectional view along line F-F in (d).
[0063] The golf club head 20 is an iron golf club head, such as image 3 As shown in middle (b), a plurality of score lines 22 are provided on the surface 21 , and these score lines 22 are formed along the toe-heel direction and are parallel to each other. In addition, the surface portion 21 is provided with a groove 23 as a concave portion for cutting start, and the groove 23 is formed extending in the vertical direction and connects the toe end side end portions of the respect...
no. 3 Embodiment approach
[0071] Figure 4 Among them, (a) is a front view of the blank golf club head 30R according to the third embodiment seen from the direction facing the face; (b) is a direction of the golf club head 30 according to the third embodiment seen from the direction facing the face The front view seen; (c) is a partially enlarged sectional view along line C-C in (a); (d) is a partially enlarged sectional view along line D-D in (b); (e) is a partial enlarged sectional view along line E-E in (d) Partially enlarged cross-sectional view. Figure 5 is a front view of golf club head 30 seen from a face-facing direction, Figure 6 for along Figure 5 The cross-sectional view of the line VI-VI in the center.
[0072] The golf club head 30 is an iron golf club head, such as Figure 4 As shown in (b), a plurality of score lines 32 are provided on the surface 31 , and these score lines 32 are formed along the toe-heel direction and are parallel to each other. In addition, the face portion 31...
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