JPH10108926A - Golf club head and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf club head and a method for manufacturing the golf club head wherein fitting of a face body to a recess of a recessed place of a head main body can be easily and surely performed with an enough fixing strength and manufacturing process of the golf club head can be simplified. SOLUTION: On the inner peripheral face of a recessed place 12c of a ball hitting face 12b of a face part 12a of a head main body, a recessed part 16 being recessed more outward from the opening edge of the recessed place is formed and a bottom part 18 projected inward from the opening edge at the nearest position on the back face of the head main body in the recessed part is formed. A cutout 14a facing to the recessed part on the inner peripheral face of the recessed place of the head main body is formed on the peripheral face of a face body 14 when the face body is inserted into the recessed place and is supported by the bottom part. The face body pressed into the recessed place is deformed plastically along the cutout of the peripheral face and is made to penetrat into the recessed part on the inner peripheral face of the recessed place and is fixed in the recessed place by being engaged with the recessed part in the inner peripheral face of the recessed place.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club head in which a metal face body is pressed into a recess formed in a striking surface of a face portion of a metal head body and fixed thereto, and the manufacture of the golf club head. Related to the way.

[0002]

2. Description of the Related Art A golf club head of the kind described above and a method of manufacturing the golf club head are disclosed in, for example, Japanese Patent Application Laid-Open No. 6-182006. JP 6
In one golf club head disclosed in Japanese Patent Application Publication No. 182006, an inner peripheral surface of a recess formed in a striking surface of a face portion of a metal head body is temporarily recessed outward from an opening edge of the recess. A concave portion having an engaging portion and a vertical extension portion extending substantially perpendicularly to the striking surface facing the back surface of the head body is formed, and the concave portion is closest to the back surface of the head body. At the position, a bottom is formed which projects inward from the opening edge. Further, a projection extending substantially perpendicular to the hitting surface of the face body is formed near the outer edge of the insertion end of the metal face body which is press-fitted into the recess of the head body.

When manufacturing this conventional golf club head, when a metal face body is pressed into a recess of the head body, a protrusion near the outer edge of the insertion end of the face body extends along the bottom of the recess. By being plastically deformed so as to bend and entering the concave portion, it engages with the concave portion and is fixed.

In another golf club head disclosed in Japanese Patent Application Laid-Open No. 6-182006, the peripheral edge of the opening of the recess formed in the ball striking face of the face of the metal head body is raised upward. A bottom portion is formed on an inner peripheral surface of the recess substantially perpendicular to the hitting surface and at a position far from the hitting surface so as to protrude inward from a peripheral portion of the opening. Further, a depression is formed on the peripheral surface of the face body.

When manufacturing another conventional golf club head, the head body is inserted into the recess of the face portion of the head body and the face body is supported at the bottom of the recess. The peripheral edge of the opening of the concave portion of the face portion is pressed downward from above. Then, the peripheral portion is recessed downward to substantially the same level as the hitting surface, and the inner peripheral surface of the concave portion is plastically deformed so as to expand into the concave portion of the peripheral surface of the face body. It is engaged and fixed.

[0006]

Problems to be Solved by the Invention
No. 6, the former golf club head described above,
Since the protrusion near the outer edge of the insertion end of the face body is plastically deformed along the protrusion of the recess of the head body and enters the above-described recess, the strength of the plastically deformed protrusion is weak and the face body with respect to the recess of the head body is weak. Low fastening strength. In addition, the operation of forming a protrusion in advance near the outer edge of the insertion end of the face body complicates the manufacturing process of the golf club head.

In another golf club head described in Japanese Patent Application Laid-Open No. 6-182006, the recess is formed even when the peripheral edge of the opening of the recess of the face of the head body is pressed as described above. The amount by which the inner peripheral surface actually expands into the recess in the peripheral surface of the face body is small, and the fastening strength of the face body to the recess in the head body is weak.

The present invention has been made under the circumstances described above, and it is an object of the present invention to enable the face body to be easily and reliably engaged with the concave portion of the concave portion of the head main body, and to have a sufficient fastening strength. Not only can you demonstrate
An object of the present invention is to provide a golf club head and a method for manufacturing the same, which can simplify the manufacturing process of the golf club head.

[0009]

In order to achieve the above-mentioned object of the present invention, a golf club head according to the present invention comprises: A golf club head in which the face body is press-fitted and fixed; at least a part of the inner peripheral surface of the recess is formed with a recess that is recessed outward from an opening edge of the recess; A bottom is formed at a position closest to the back surface of the head body in the recess, and a bottom is formed to project inward from the opening edge; on the peripheral surface of the face, the face is inserted into the recess. And a notch facing the recess on the inner peripheral surface of the recess of the head body when supported by the bottom portion; the face body press-fitted into the recess extends along the notch on the peripheral surface. Plastic deformation It is characterized in that; penetrate the recess of the inner circumferential surface, and is secured to the recess by engaging in a recess of the inner peripheral surface of the recess.

[0010] In the golf club head according to the present invention having the above-described structure, the face body press-fitted into the recess is guided by the notch in the peripheral surface and is easily along the notch. It is plastically deformed and reliably penetrates into the concave portion on the inner peripheral surface of the concave portion, and is easily and securely engaged with the concave portion on the inner peripheral surface of the concave portion, whereby it is firmly fixed to the concave portion.

[0011] Compared with the above-described operation of forming projections on the conventional golf club head face body,
The above-described work of forming a notch in the peripheral surface of the face body of the golf club head according to the present invention is easier.

In the golf club head according to the present invention having the above-described structure, the concave portion is formed by an engaging portion once recessed outside the opening edge of the concave portion and the engaging portion. The head body has an inclined portion directed inward toward the back surface of the head main body, and the face body press-fitted into the recess and supported by the bottom portion has a cutout of the peripheral surface opposed to the inclined portion of the recess. Yes, you can.

With such a configuration, the portion of the face body that has been plastically deformed along the notch comes into contact with the inclined portion and is guided toward the engaging portion by the inclined portion. Thereby, the engagement of the plastically deformed portion of the face body with the engagement portion is performed more sufficiently and reliably.

It is preferable that the inclined portion in the concave portion is constituted by a linear inclined surface. This is because such an inclined surface is easy to manufacture.
Further, the notch of the face body may include an elongated groove extending in a direction in which the peripheral surface of the face body extends, and may extend in a direction in which the peripheral surface of the face body extends. And an elongated step opening toward the bottom of the recess.

The work of forming such grooves and steps is easy. In the golf club head according to the present invention, which is configured as described above, the engaging portion and the engaging portion are provided such that the concave portion extends along the bottom portion and is once recessed outside the opening edge of the concave portion. And a slant portion inward toward the striking surface of the head body from the head body.The face body press-fitted into the recess and supported by the bottom portion has a notch in the peripheral surface facing the slope portion of the recess. I can do it.

With such a configuration, the portion of the face body that has been plastically deformed along the notch comes into contact with the inclined portion and is guided toward the engaging portion by the inclined portion. Thereby, the engagement of the plastically deformed portion of the face body with the engagement portion is performed more sufficiently and reliably.

Also in this case, it is preferable that the inclined portion in the concave portion is constituted by a linear inclined surface. The reason is as described above. In the concave portion, an inclined portion inward from the engagement portion so as to become shallower toward the back surface of the head main body, or an inclined portion inward from the engagement portion along the bottom portion toward the ball striking surface of the head main body. Can guide the plastically deformed portion of the face body quickly and reliably from the engagement portion to the bottom portion closer to the back surface of the head body than the engagement portion. As long as the guide can be quickly and reliably filled from the bottom portion and the engaging portion approaching the back surface to the end near the opening of the concave portion, a concave surface, a convex surface, or a surface of various other shapes can be used.

Further, the cross-sectional shape of the notch and the inclination of the notch with respect to the peripheral surface of the face body are determined by the plasticity of the face body when the face body is pressed into the recess of the head body and plastically deforms along the notch. Various settings can be made as long as the deformed portion can be easily and promptly and reliably guided to the concave portion of the concave portion, preferably the inclined portion.

In order to achieve the above-mentioned object of the present invention, a method of manufacturing a golf club head according to the present invention is directed to a method of manufacturing a golf club head, comprising the steps of: A method of manufacturing a golf club head for press-fitting and fixing a body, wherein at least a part of an inner peripheral surface of the recess is formed with a recess recessed outside an opening edge of the recess, and the recess is formed. Forming a bottom protruding inward from the opening edge at a position closest to the back surface of the head body;
When the face body is inserted into the recess and supported by the bottom, a notch is formed facing the recess on the inner peripheral surface of the recess of the head body; the face body is pressed into the recess and the face is pressed. The body is plastically deformed along the notch in the peripheral surface and penetrates into the concave portion on the inner peripheral surface of the concave portion, and is fixed to the concave portion by engaging with the concave portion on the inner peripheral surface of the concave portion; It is characterized by:

In the method of manufacturing a golf club head according to the present invention having the above-described structure, when the face body is pressed into the recess, the face body can be easily formed along the cutout of the peripheral surface. Plastic deformation can be ensured. The plastically deformed portion of the face body easily and quickly enters the concave portion on the inner peripheral surface of the recess, and is easily and reliably engaged with the concave portion on the inner peripheral surface of the concave portion. As a result, the face body is firmly fixed to the recess of the head body.

[0021] The method of manufacturing a golf club head according to the present invention, characterized in that it is configured as described above,
It is preferable that the inclined portion in the concave portion is constituted by a linear inclined surface.

Such an inclined surface is easy to manufacture. In the method of manufacturing a golf club head according to the present invention, which is configured as described above, the press-fitting means used when press-fitting the face body into the recess is provided with respect to a peripheral portion of the face body. Preferably, the pressure is applied more strongly than the rest of the face body.

In this way, the pressure is concentrated toward the notch of the face body, so that the face body can be plastically deformed along the notch more easily and quickly toward the recess of the head body.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view of a golf club head according to one embodiment of the present invention, and FIG. 2 is a view of the golf club head of FIG.
FIG. 2 is a cross-sectional view along the line II-II.

As shown in FIGS. 1 and 2, a golf club head 10 according to one embodiment of the present invention has a metal head body 12 and a face portion 1 of the head body 12.
And a metal face body 14 which is press-fitted and fixed in a recess 12c formed in the hitting surface 12b of 2a.

The recess 12c of the head body 12 of this embodiment penetrates from the striking surface 12b of the head body 12 to the back surface of the head body 12.
Does not have to penetrate.

A concave portion 16 is formed on the inner peripheral surface of the concave portion 12c of the head main body 12 of this embodiment, the concave portion 16 being recessed outward from the opening edge of the concave portion 12c over the entire circumference. At the position of the concave portion 16 closest to the back surface of the head main body 12, a convex bottom portion 18 protruding inward from the opening edge is formed.

The face body 14 is provided in the recess 1 of the head body 12.
It has a plane shape and a plane size substantially the same as the plane shape and the plane size of 2c, and is exposed from the recess 12c while being inserted into the recess 12c and the peripheral edge of the insertion end is supported by the bottom portion 18. The peripheral edge of the end is pressed with a high pressure so that the concave portion 1 is formed.
6 and engages with the recess 16 to form the recess 12c.
It is fixed to.

FIG. 3 is a cross-sectional view showing a starting state of some steps of the method of manufacturing the golf club head 10 of FIG.
FIG. 4 is a cross-sectional view showing an end state of some steps of the method of manufacturing the golf club head 10 of FIG.

Next, a method of manufacturing the golf club head 10 of FIG. 1 will be described in detail with reference to FIGS. 3 and 4, and the structure of the golf club head 10 of FIG. 1 manufactured by this manufacturing method will be described in detail. Will be described.

A concave portion 12c is formed in advance on the striking surface 12b of the face portion 12a of the head main body 12 at the time of molding the head main body 12 or by cutting after the head main body 12 is molded. Recess 12c
Before the press-fitting, a concave portion 16 and a bottom portion 18 are formed on the inner peripheral surface of the concave portion 12c.

The recess 16 has an engaging portion 16a which is once recessed outward from the opening end of the recess 12c, and an inclined portion 16b which extends inward from the engaging portion 16a toward the back surface of the head body 12. ing. Then, in this embodiment, the inclined portion 16b ends before reaching the bottom portion 18, and
The lower end portion of the inner peripheral surface of the concave portion 12c from the end of the inclined portion 16b to the bottom portion 18 is the inner peripheral surface of the concave portion 12c perpendicular to the opening end of the concave portion 12c.

However, the end of the inclined portion 16b is connected to the bottom 1
8, the recess 12c as shown in FIG.
The vertical lower end portion of the inner peripheral surface can be omitted. The concave portion 16 will be described in more detail. The engaging portion 16a of the concave portion 16 is formed by an engaging surface facing the direction opposite to the hitting surface 12b of the head body 12 and substantially parallel to the hitting surface 12b. , The inclined portion 16b is constituted by a linear inclined surface. Further, the bottom portion 18 will be described in more detail. The bottom portion 18 faces in the same direction as the striking surface 12b of the head main body 12, and the engaging portion 16a of the concave portion 16
Is formed by a receiving surface 18a substantially parallel to the hitting surface 12b.

The concave portion 16 and the bottom portion 18 correspond to the concave portion 1.
As shown in FIG. 3, the head main body 12 formed on the inner peripheral surface of the lower die 20 is supported in the mold recess 20a of the lower mold 20 except for the hitting surface 12b and the recess 12c.

The face body 14 is provided in the recess 1 of the head body 12.
2c has substantially the same planar shape and planar dimension as the planar shape and planar dimensions of the opening edge of the recess 12c, and the depth of the recess 12c (that is, the receiving surface 18 of the bottom 18 from the opening edge of the recess 12c).
(a distance to a). Further, a notch 14a is formed on the peripheral surface of the face body 14, and in this embodiment, the notch 14a is formed to extend in the direction in which the peripheral surface extends over the entire circumference of the peripheral surface of the face body 14. Is formed by the elongated groove.

The face body 14 thus prepared is
As shown in FIG. 3, the head is inserted into the recess 12 c of the head main body 12, and the vicinity of the periphery of the insertion end face is supported by the receiving surface 18 a of the bottom 18. At this time, as shown in FIG. 3, the notch 14a on the peripheral surface of the face body 14 faces the recess 16 of the recess 12c, and more specifically, the notch 14a
The concave portion 16 of FIG.

The face body 14 is pressed by press-fitting means, in this embodiment, an upper mold 22, and abuts against the receiving surface 18 a of the bottom 18 of the recess 12 c of the head body 12. In this embodiment, the pressing face of the press-fitting means 22 corresponding to the exposed end face of the face body 14 is provided with the head main body 12.
Exposure of the face body 14 adjacent to the portion where the concave portion 16 and the bottom portion 18 are formed on the inner peripheral surface of the concave portion 12c of the hitting surface 12b of the face portion 12a (that is, the entire periphery of the open end of the concave portion 12c). A forced pressing protrusion protruding toward the exposed end face of the face body 14 at a portion corresponding to the outer peripheral edge corresponding to the outer peripheral edge of the end face, from a portion corresponding to the remaining portion other than the outer peripheral edge of the exposed end face of the face body 14. 22a are formed. Then, the volume of the forced pressing projection 22a is
Notch 1 of the face body 14
It is set so that it can be easily plastically deformed by pressing the upper side of 4a.

As shown in FIG. 4, the face body 14 pressed by the pressing surface of the press-fitting means 22 is pressed into the recess 12c of the head body 12. Notch 14 of face body 14
a is a space provided for facilitating plastic deformation of the face body 14, and a portion of the face body 14 where the notch 14a is provided is made thinner than other parts of the face body 14, Notch 1 in face body 14
When pressed, the portion of 4a located on the side of the striking surface is easily plastically deformed so as to crush notch 14a. Therefore, the outer peripheral edge of the exposed end face of the face body 14 is
The second forced pressing projection 22a presses with a particularly strong pressure, easily and securely plastically deforms along the notch 14a and penetrates into the concave portion 16 as shown by an arrow F along the inclined surface of the inclined portion 16b of the concave portion 16. It fills up to the engagement surface of the engagement part 16a. And the notch 14a of the face body 14
The plastically deformed portion along the line finally reaches the engaging surface of the engaging portion 16a of the concave portion 16 and engages with the concave portion 16 without generating a nest, and the face body 14 is fixed in the concave portion 12c. Is done.

Accordingly, the fastening strength of the face body 14 to the recess 12c of the head main body 12 can be enhanced as compared with the conventional case.
As described above, there is no process that complicates the production. Finally, as shown in FIG. 4, a portion of the exposed end of the face body 14 fixed to the recess 12c of the head main body 12 protruding from the recess 12c (ie, protruding outward from the hitting surface 12b). 4) is a striking surface 1 as shown by a dotted line in FIG.
Finish grinding is performed to almost the same plane as 2b.

Next, a method of manufacturing a golf club head according to another embodiment of the present invention will be described in detail with reference to FIGS. 5 and 6, and a golf club head manufactured by this manufacturing method will be described. Will be described in detail.

FIG. 5 is a cross-sectional view showing an essential part of a golf club head manufacturing method according to another embodiment of the present invention in a starting state of some steps, and FIG.
FIG. 5 is a cross-sectional view showing a main part in a state where some steps of the method of manufacturing a golf club head have been completed.

The various members used in the method of manufacturing a golf club head according to the above another embodiment are the same as those of the embodiment of the present invention described in detail with reference to FIGS. The same members as the various members used in the method for manufacturing a golf club head according to the present invention include the manufacturing of a golf club head according to one embodiment of the present invention described in detail with reference to FIGS. The same reference numerals are given to the various members used in the method, and detailed description of these same members will be omitted.

The ball striking surface 30b of the face portion 30a of the head body 30 of the golf club head according to this another embodiment is formed in advance by forming the head body 30 or by cutting after forming the head body 30. Recess 30c
Are formed, and the face body 32 is
Prior to press-fitting into c, a concave portion 34 and a bottom portion 36 are formed on the inner peripheral surface of the concave portion 30c.

The bottom portion 36 is formed on the inner peripheral surface of the recess 30c and projects inward from the opening end of the recess 30c. The bottom portion 36 faces in the same direction as the striking surface 30b and is substantially parallel to the striking surface 30b. It has a surface 36a.

The recess 34 extends along the bottom 36 and outwardly from the opening end of the recess 30c, and goes inward from the engaging portion 34a toward the striking surface 30b of the head body 30. And an inclined portion 34b. And in this embodiment, the inclined portion 34b is
b, and the upper end of the inner peripheral surface of the recess 12c from the end of the inclined portion 34b to the striking face 30b is perpendicular to the opening end of the recess 12c.

By ending the inclined portion 34b with the hitting surface 30b, the vertical upper end portion of the inner peripheral surface of the recess 12c from the end of the inclined portion 34b to the hitting surface 30b as shown in FIG. 5 may be omitted. I can do it.

The recess 34 will be described in more detail.
The engaging portion 34a of the concave portion 34 is
The inclined surface 34b is formed of a plane that faces the same direction as b and is substantially parallel to the hitting surface 30b, and the inclined portion 34b is formed of a linear inclined surface.

The recess 34 and the bottom 36 are formed in the recess 3
The head main body 30 formed on the inner peripheral surface of the lower mold 20 is supported in the mold recess 20a of the lower mold 20 except for the striking surface 30b and the recess 30c as shown in FIG.

The face body 32 is formed in the recess 3 of the head body 30.
0c has the same planar shape and planar dimensions as the planar shape and planar dimensions of the opening edge of the recess 30c (that is, from the opening edge of the recess 30c to the receiving surface 36 of the bottom portion 36).
(a distance to a). Further, a notch 32a is formed on the peripheral surface of the face body 32. In this embodiment, the notch 32a extends in the direction in which the peripheral surface extends over the entire periphery of the peripheral surface of the face body 32. With face body 3
2, that is, an elongated step that opens toward the receiving surface 36 a of the bottom 36 of the recess 30 c of the head body 30.

The face body 32 thus prepared is
As shown in FIG. 5, the head is inserted into the recess 30 c of the head main body 30, and the vicinity of the periphery of the insertion end face is supported by the receiving surface 36 a of the bottom 36. At this time, as shown in FIG. 5, the notch 32a is opposed to the concave portion 34 of the concave portion 30c on the peripheral surface of the face body 32. More specifically, the notch 32a is formed by tilting the concave portion 34 of the concave portion 30c. It faces the part 34b.
A notch 32a is formed at the insertion end face of the face body 32.
Also face the receiving surface 36a of the bottom 36 of the recess 30c.

The face body 32 is pressed by press-fitting means, in this embodiment, the upper mold 22, and comes into contact with the receiving surface 36 a of the bottom 36 of the recess 30 c of the head body 30. In this embodiment, the pressing surface of the press-fitting means 22 corresponding to the exposed end face of the face body 32 includes a head body 30.
Exposure of the face body 32 adjacent to the portion where the concave portion 34 and the bottom portion 36 are formed on the inner peripheral surface of the concave portion 30c of the striking surface 30b of the face portion 30a (that is, the entire periphery of the open end of the concave portion 30c). A forced pressing protrusion protruding toward the exposed end face of the face body 32 at a portion corresponding to the outer peripheral edge corresponding to the outer peripheral edge of the end face, from a portion corresponding to the remaining portion other than the outer peripheral edge of the exposed end face of the face body 32 22a are formed. Then, the volume of the forced pressing projection 22a is
Is set larger than the volume.

As shown in FIG. 6, the face body 32 pressed by the pressing surface of the press-fitting means 22 is pressed into the recess 32c of the head body 30, and the outer peripheral edge of the exposed end face of the face body 32 is It is pressed with a particularly strong pressure by the forcible pressing projection 22a, and easily and reliably plastically deforms along the notch 32a to enter the concave portion 34, and first fills the inner end of the engaging portion 16a as shown by the arrow G. . Next, a notch 32a at the outer peripheral edge of the exposed end face of the face body 32
The plastically deformed portion along the inclined surface of the concave portion 34 along the inclined surface 34b of the concave portion 34 finally reaches the terminal far from the engaging portion 34a at the inclined portion 34b and reliably engages with the concave portion 34 without generating a nest, The face body 32 is fixed in the recess 30c.

Therefore, the fastening strength of the face body 32 to the recess 30c of the head main body 30 can be enhanced as compared with the conventional case.
As described above, there is no process that complicates the production. Finally, as shown in FIG. 6, a portion of the exposed end of the face body 32 fixed to the recess 30c of the head main body 30 that protrudes from the recess 30c (ie, protrudes outward from the hitting surface 30b). The part) is a hitting surface 3 as shown by a dotted line in FIG.
Finish grinding is performed to the same plane as 0b.

[0054]

As described above, in the golf club head and the golf club head manufacturing method according to the present invention, the engagement of the face body with the concave portion of the concave portion of the head body can be easily and surely performed. Moreover, not only can a sufficient fastening strength be exhibited, but also the manufacturing process of the golf club head can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view of a golf club head according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view of the golf club head of FIG. 1 taken along the line II-II.

FIG. 3 is a cross-sectional view showing a starting state of some steps of the method for manufacturing the golf club head of FIG. 1;

FIG. 4 is a cross-sectional view showing an end state of some steps of the method for manufacturing the golf club head of FIG. 3;

FIG. 5 is a cross-sectional view showing a main part of a starting state of some steps of a method of manufacturing a golf club head according to another embodiment of the present invention.

6 is a cross-sectional view showing a main part in a state where some steps of the method of manufacturing the golf club head of FIG. 5 have been completed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Golf club head 12 Head main body 12a Face portion 12b Striking surface 12c Concave portion 14 Face body 14a Notch 16 Concave portion 16a Engaging portion 16b Inclined portion 18 Bottom portion 18a Receiving surface 20 Lower mold 20a Mold recess 22 Press-fitting means 22a Forced pressing projection Reference Signs List 30 head body 30a face portion 30b striking surface 30c concave portion 32 face body 32a cutout 34 concave portion 34a engaging portion 34b inclined portion 36 bottom portion 36a receiving surface

Claims (7)

[Claims] 1. A golf club head in which a metal face body is press-fitted into a recess formed in a striking surface of a face portion of a metal head main body and fastened, and at least one of an inner peripheral surface of the recess is provided. In the portion, a concave portion that is recessed outward from the opening edge of the concave portion is formed, and a bottom portion that protrudes inward from the opening edge is located at a position closest to the back surface of the head body in the concave portion. A notch is formed in the peripheral surface of the face body, which faces the concave part of the inner peripheral surface of the concave part of the head body when the face body is inserted into the concave part and supported by the bottom part. Is formed, the face body pressed into the recess is plastically deformed along the notch of the peripheral surface and penetrates into the concave portion on the inner peripheral surface of the recess,
A golf club head, wherein the golf club head is fixed to the recess by engaging with a recess on the inner peripheral surface of the recess. 2. The recess has an engaging portion which is once recessed outward from an opening edge of the recess, and an inclined portion which is directed inward from the engaging portion toward the back surface of the head body. Wherein the face body press-fitted into the recess and supported by the bottom has a notch on the peripheral surface facing the inclined portion of the recess.
The golf club head according to claim 1, wherein: 3. The golf according to claim 1, wherein the cutout of the face body includes an elongated groove extending in a direction in which the peripheral surface of the face body extends. Club head. 4. The concave portion includes an engaging portion which is temporarily recessed outside the opening edge of the concave portion along the bottom portion, and an inclined portion which is inward from the engaging portion toward the hitting surface of the head main body. The face body press-fitted into the recess and supported by the bottom has a notch on the peripheral surface facing the inclined portion of the recess.
The golf club head according to claim 1, wherein: 5. The notch of the face body includes an elongated step extending in a direction in which a peripheral surface of the face body extends and opening toward the bottom of the recess.
The golf club head according to claim 1 or 4, wherein: 6. A method of manufacturing a golf club head in which a metal face body is pressed into a recess formed in a striking surface of a face portion of a metal head body and fixed thereto, and an inner peripheral surface of the recess is provided. In at least a part of the recess, a recess recessed outward from the opening edge of the recess is formed, and the bottom protruding inward from the opening edge at a position closest to the back surface of the head body in the recess. Forming a notch on the peripheral surface of the face body, which is opposed to the concave part of the inner peripheral surface of the concave part of the head body when the face body is inserted into the concave part and supported by the bottom part. The face body is press-fitted into the recess, and the face body is plastically deformed along the notch in the peripheral surface to penetrate into the recess on the inner peripheral surface of the recess, and engages with the concave portion on the inner peripheral surface of the recess. To be fixed in the recess by combining A method for producing a golf club head. 7. The press-fitting means used for press-fitting the face body into the concave portion applies a pressure to the peripheral portion of the face body more strongly than the rest of the face body. Item 7. The method for manufacturing a golf club head according to Item 6.