Golf club head

Abstract

It prevents the badge from peeling off or getting damaged. [Solution] The golf club head includes a head body 200 having a top portion 201, a face plate 100 fixed to the front side of the head body 200, and a badge 300 fixed to the rear side of the head body 200. The face plate 100 has a peripheral projection 104 that extends along its outer edge and protrudes to the rear of the head. The head body 200 includes a top-side receiving portion 205 that extends downward from the top portion 201 and has a receiving surface 206 that contacts the rear surface of the peripheral projection 104, and an extension portion 210 that extends further downward from the top-side receiving portion 205. The extension portion 210 is located on the side of the striking surface 2 than a virtual plane 206V that extends downward along the striking surface 2 from the receiving surface 206, and does not contact the face plate 100. The badge 300 does not contact the face plate 100, and its upper part 301 is fixed to the extension portion 210.

Description

Technical Field

[0001] The present invention relates to a golf club head.

Background Art

[0002] Patent Document 1 below describes an iron-type golf club head. This head includes a head body having a face and a plurality of ribs extending in the vertical direction of the head on the back side of the face. Further, this head is provided with a badge so as to cover the ribs from the rear of the head.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] Generally, in a golf club head, when hitting a ball, the face portion including the hitting surface elastically deflects greatly backward. The badge directly fixed to the back surface of the face portion is repeatedly affected by the deflection of the face portion, so problems such as peeling and breakage are likely to occur.

[0005] In addition, in an iron-type golf club head, since there are many opportunities to hit a ball placed on the ground, it is desired that the sweet spot (the point where the normal line erected on the hitting surface from the head center of gravity intersects the hitting surface) be provided at as low a position as possible.

[0006] This invention was devised in view of the above-mentioned problems, and its primary objective is to provide a golf club head that can suppress the peeling and damage of the badge. Another objective of this invention is to provide a golf club head, particularly an iron-type golf club head, that can suppress the raising of the sweet spot position. [Means for solving the problem]

[0007] The present invention relates to a golf club head comprising a head body having a top portion, a face plate fixed to the front side of the head body, and a badge fixed to the rear side of the head body, wherein the face plate comprises a front plate surface constituting part of the striking surface and a rear plate surface opposite to the front plate surface, the rear plate surface having a peripheral projection extending along the outer edge of the face plate and projecting toward the rear of the head, the head body comprising an opening in which the face plate is positioned, a top-side receiving portion extending downward from the top portion and having a receiving surface that abuts the rear surface of the peripheral projection, and an extension portion extending further downward from the top-side receiving portion, wherein at least a portion of the extension portion is located on the striking surface side of a virtual plane extending the receiving surface downward along the striking surface, but does not contact the face plate, the badge does not contact the face plate, and the upper part of the badge is fixed to at least the extension portion. [Effects of the Invention]

[0008] The golf club head of the present invention can suppress peeling and damage of the badge caused by repeated ball impacts. Furthermore, the golf club head of the present invention can suppress the rise of the sweet spot. [Brief explanation of the drawing]

[0009] [Figure 1] This is a front view of the golf club head in the standard state according to this embodiment. [Figure 2]Figure 1 is a rear view of the golf club head. [Figure 3] Figure 1 is a side view of the golf club head as seen from the toe side. [Figure 4] This is a side view of a golf club head in a vertical position, seen from the toe side. [Figure 5] This is an exploded perspective view of the golf club head of this embodiment. [Figure 6] This is a vertical cross-section of a golf club head in a vertical position. [Figure 7] This is a partial cross-sectional view of the top portion of the golf club head of this embodiment with the badge removed. [Figure 8] This is an enlarged view of section VIII in Figure 6. [Figure 9] This is a cross-sectional view of the top part of the golf club head of the comparative example. [Figure 10] This is a cross-sectional view of the top part of the golf club head of another comparative example. [Figure 11] This is a partial cross-sectional view of a golf club head in a vertical position, showing a modified example of the extension. [Figure 12] This is a rear view of the head unit in a vertical position. [Figure 13] This is a rear view of the head body in a vertical position, showing a modified example of the extension. [Figure 14] This is a rear view of the head body in a vertical position, showing a modified example of the extension. [Figure 15] This is a rear view of the head body in a vertical position, showing a modified example of the extension. [Figure 16] This is a rear view of the head body in a vertical position, showing a modified example of the extension. [Figure 17] This is a perspective view of a golf club head to illustrate the standard state. [Modes for carrying out the invention]

[0010] One embodiment of the present invention will be described below with reference to the drawings. The drawings are to be understood to include exaggerated representations or representations that differ from the dimensional ratios of actual structures in order to assist in the understanding of the present invention. Further, in the case of multiple embodiments, throughout the specification, the same or common elements are given the same reference numerals, and duplicate explanations are omitted. Furthermore, the specific configurations shown in the embodiments and the drawings are for the purpose of understanding the content of the present invention, and the present invention is not limited to the specific configurations shown.

[0011] Figures 1 to 3 respectively show a front view, a rear view, and a side view seen from the toe side of the golf club head (hereinafter sometimes simply referred to as the "head") 1 of the present embodiment placed in the reference state.

[0012] [Reference state] In this specification, the "reference state" of the head 1 means that, as conceptually shown in FIG. 17, with the face line 7 formed on the striking face 2 of the head 1 being parallel to the horizontal plane HP, the head 1 is placed on the horizontal plane HP. In the reference state, the central axis line CL (the axis of the club shaft) of the shaft insertion hole 8 of the head 1 is arranged within the reference vertical plane VP. The reference vertical plane VP is a plane perpendicular to the horizontal plane HP. In this reference state, the face line 7 is parallel to the horizontal plane HP and also parallel to the reference vertical plane VP. Note that the angle α between the central axis line CL (the axis of the club shaft) of the shaft insertion hole 8 and the horizontal plane HP is the lie angle, and the angle β between the striking face 2 and the reference vertical plane VP is the loft angle. Throughout this specification and the claims, unless otherwise specifically stated, the head 1 is assumed to be in the reference state, and the configurations of each part are described.

[0013] [Direction of the head] Referring to Figure 17, the front side of head 1 refers to the side of the striking surface 2. The rear side or back side of head 1 refers to the opposite side. The x-axis indicates the front-to-back direction of the head. The y-axis indicates the toe-heel direction of head 1, which is the horizontal direction perpendicular to the front-to-back direction of the head. The z-axis indicates the up-and-down direction of the head, where the "up" and "down" sides of head 1 are relative, with the direction away from the horizontal plane HP being the "up" side and the opposite being the "down" side.

[0014] [Vertical state] In this specification, the vertical state of head 1 is further defined. The vertical state is the state in which head 1 is rotated forward by a loft angle β around the toe-heel axis and placed on the horizontal plane HP, such that the angle between the striking surface 2 of head 1 and the reference vertical plane VP in Figure 17 is zero. Figure 4 shows a side view of head 1 in the vertical state as seen from the toe side. Even in the vertical state, each direction of head 1 is considered to conform to the coordinate system of the reference state.

[0015] [Basic head shape] As shown in Figures 1-4, the head 1 of this embodiment is, for example, an iron-type head and includes a striking surface 2, a top 3, a sole 4, a hosel 5, a back surface 6, a toe T, and a heel H. In other embodiments, the head 1 may be a hybrid type having an intermediate shape between an iron type and a wood type.

[0016] The striking surface 2, also known as the striking face, is a substantially flat surface that strikes the ball. The striking surface 2 may be provided with several narrow grooves, or face lines 7, to increase friction with the ball. These face lines 7 extend, for example, parallel to each other in the toe-heel direction y of the head 1. As shown in Figure 1, the maximum extent of the face lines 7 in this embodiment corresponds to the main striking area and defines a distance W in the toe-heel direction.

[0017] The top three components extend from the upper edge of the striking surface 2 towards the rear of the head, forming the top surface of the head.

[0018] The sole 4 extends from the lower edge of the striking surface 2 towards the rear of the head, forming the bottom surface of the head.

[0019] The hosel 5 is the part having a shaft insertion hole 8 (shown in Figure 17) into which the club shaft (not shown) is inserted, and is, for example, configured in a cylindrical shape. The central axis CL of the shaft insertion hole 8 essentially coincides with the axis of the club shaft when the club shaft is fixed therein.

[0020] The toe T defines the end of the head 1 on the side away from the hosel 5, and smoothly connects the top 3 and the sole 4.

[0021] Heel H is located on the opposite side of toe T, and in the case of an iron-type head, it is the base of hosel 5.

[0022] Figure 5 shows an exploded perspective view of the head 1 of this embodiment. Figure 6 shows a longitudinal cross-sectional view of the head 1 in a vertical position. The cross-sectional position in Figure 6 corresponds to the line VI-VI in Figure 1. As shown in Figures 5 and 6, the head 1 of this embodiment includes a faceplate 100, a head body 200, and a badge 300. The faceplate 100 is fixed to the front side of the head body 200. On the other hand, the badge 300 is fixed to the rear side of the head body 200.

[0023] [Faceplate] The faceplate 100 includes a front plate surface 101 that forms part of the striking surface 2, a rear plate surface 102 which is the opposite side of the front plate surface 101, and a side plate surface 103 that connects these. The contour shape of the faceplate 100 is defined, for example, to include the sweet spot, which is the most effective striking position on the striking surface 2. As shown in Figure 1, the front view contour shape of the faceplate 100 in this embodiment is defined to fit within the contour line of the striking surface 2.

[0024] The front surface 101 of the plate is formed as a flat surface, except for the face line 7. The rear surface 102 of the plate extends along the outer edge of the face plate 100 and has a protruding peripheral projection 104 at the rear of the head. In this embodiment, the rear surface 104a of the peripheral projection 104 is formed as a flat surface parallel to the hitting surface 2 (front surface 101 of the plate). The peripheral projection 104 extends in an annular continuous manner along the outer edge of the face plate 100. In such a face plate 100, a relatively thin-walled portion 105 is formed in the area surrounded by the peripheral projection 104. The thin-walled portion 105 is more elastically flexible when hitting the ball, which helps to increase the rebound effect and improve the distance of the hit ball.

[0025] The faceplate 100 in this embodiment is made of a metallic material. While there are no particular limitations on the metallic material, various materials such as titanium, titanium alloys, stainless steel, and maraging steel can be used, with titanium alloys being particularly preferred due to their high specific strength. Alternatively, the faceplate 100 may be made of fiber-reinforced resin. Furthermore, the thickness of the faceplate 100 (especially the thin-walled portion 105) can be set in various ways according to convention, taking into consideration durability and rebound performance.

[0026] [Head body] As shown in Figure 5, the head body 200 of this embodiment has an opening O in which the face plate 100 is placed. The opening O penetrates the head body 200 in the front-to-back direction. The head body 200 has a top portion 201, a toe portion 202, a sole portion 203, and a heel portion 204 arranged around the opening O. The head body 200 is formed of a metal material, for example. Various materials such as titanium, titanium alloy, stainless steel, and maraging steel can be used as the metal material, and in particular, a metal material with a higher specific gravity than the material of the face plate 100 is preferably used. The head body 200 of this embodiment is formed of stainless steel.

[0027] The top section 201 is a frame-like portion that includes the top 3 and extends in the toe-heel direction. The sole section 203 is a frame-like portion that includes the sole 4 and extends in the toe-heel direction. The toe section 202 includes the toe T and is a frame-like portion that connects the top section 201 and the sole section 203. The heel section 204 includes the heel H and is a frame-like portion that connects the top section 201 and the sole section 203. The hosel 5 is integrally formed with the heel section 204.

[0028] [Top receiving part] Figure 7 shows a partially enlarged perspective view of the top section of Figure 6 (vertical state). In Figure 6, the badge 300 has been removed. Figure 8 is an enlarged view of section VIII of Figure 6. As shown in Figures 6 to 8, the head body 200 further includes a top-side receiving section 205 extending downward from the top section 201. In this embodiment, the top-side receiving section 205 is located behind the striking surface 2.

[0029] The top receiving portion 205 has a receiving surface 206 that contacts the rear surface 104a of the peripheral protrusion 104 of the faceplate 100. In this embodiment, the receiving surface 206 is formed as a plane parallel to the striking surface 2.

[0030] Although not shown in detail, the toe portion 202, sole portion 203, and heel portion 204 of the head body 200 are each provided with toe-side receiving portions, sole-side receiving portions, and heel-side receiving portions, respectively, that contact the rear surface 104a of the peripheral protrusion 104 of the face plate 100, similar to the top-side receiving portion 205 (Figure 6 shows the sole-side receiving portion). Therefore, the rear surface 104a of the peripheral protrusion 104 of the face plate 100 is supported by each receiving portion of the head body 200 along its entire circumference. In addition, the plate side surface 103 of the face plate 100 is fitted with the inner peripheral edge 207 (Figure 7) that defines the opening O of the head body 200. On the other hand, the thin-walled portion 105 of the face plate 100 is not supported by the head body 200.

[0031] In this embodiment, after the faceplate 100 is inserted into the opening O of the head body 200, the edge portion of the head body 200 on the striking surface 2 side is crushed by plastic deformation. As a result, the head body 200 includes a locking portion 208 that locks the front plate 101 side of the faceplate 100. The locking portion 208 is formed, for example, around the entire circumference of the faceplate 100. In this way, the faceplate 100 in this embodiment is firmly fixed to the head body 200 by so-called riveting. Note that the faceplate 100 and the head body 200 may be fixed using adhesive or fastening members instead of, or in conjunction with, riveting.

[0032] As described above, the assembly of the head body 200 and the face plate 100 in this embodiment (the assembly without the badge 300) has a so-called cavity back structure in which the back surface 6 is recessed.

[0033] [Extension] The head body 200 of this embodiment includes an extension 210 that extends further downward from the top receiving portion 205. The extension 210 terminates at a lower end 210e. At least a portion of the extension 210 is located on the side of the striking surface 2 than the virtual plane 206V which is an extension of the receiving surface 206 downward along the striking surface 2. However, the extension 210 does not contact the faceplate 100 (particularly the thin-walled portion 105 of the faceplate 100).

[0034] [badge] As shown in Figures 5 and 6, the badge 300 of this embodiment is fixed to the rear side of the head body 200. The material of the badge 300 is not particularly limited, but a material with a lower specific gravity than the material of the head body 200 is preferred in order to avoid increasing the weight of the head 1 as much as possible. The badge 300 of this embodiment is formed of, for example, a resin material. Therefore, the badge 300 of this embodiment is not essentially a structural member that affects the rigidity of the head 1. In addition, the badge 300 may be decorated with various paints, emblems, etc.

[0035] In this embodiment, the badge 300 is positioned, for example, to cover the opening O of the head body 200 from the rear of the head. In this embodiment, the badge 300 is positioned across the top portion 201, toe portion 202, sole portion 203, and heel portion 204 of the head body 200. As a result, the badge 300 can block the opening O of the head body 200 so that it is not visible from the rear of the head. Therefore, as shown in Figure 6, the head 1 of this embodiment has a closed hollow portion i between the face plate 100 and the badge 300.

[0036] As is clear from Figure 6, the badge 300 of this embodiment has an outer surface 302 on the back surface 6 side that smoothly connects the top 3 and the sole 4. As a result, the back surface 6 of the head 1 of this embodiment does not appear to be a cavity back, but rather looks like a muscle back type, for example, which is preferred by advanced players.

[0037] As shown in Figure 6, the badge 300 does not come into contact with the faceplate 100. Furthermore, the upper part 301 of the badge 300 is fixed to at least the extension 210. In this embodiment, the upper part 301 of the badge 300 is fixed to the rear surface 210a of the extension 210 using, for example, double-sided tape 401. The upper part 301 of the badge 300 in this embodiment is further fixed to the rear surface of the top receiving portion 205 using, for example, double-sided tape 402. That is, the upper part 301 of the badge 300 is fixed across both the extension 210 and the top receiving portion 205. Therefore, the badge 300 in this embodiment can be fixed to the head body 200 on the top 3 side with a wider adhesive range in the vertical direction.

[0038] The lower part of the badge 300 is fixed to the rear side of the sole portion 203 of the head body 200 using double-sided tape 403. In this embodiment, a recess 209 is formed on the rear side of the sole portion 203, and the lower part of the badge 300 is fitted into this recess 209. Although not shown in detail, the toe side and heel side of the badge 300 are also fixed to the rear sides of the toe portion 202 and heel portion 204 of the head body 200, respectively, using double-sided tape.

[0039] [Operation of this embodiment] In this embodiment, the head 1 is configured as described above, with the badge 300 fixed to the head body 200 and not in contact with the face plate 100. Therefore, the badge 300 is less affected by the elastic deflection of the face plate 100 when the ball is struck. Consequently, damage to the badge 300 (e.g., cracking) and detachment of the badge 300 from the head body 200 are effectively suppressed.

[0040] Furthermore, since the head body 200 is equipped with an extension 210 that extends further downward from the top receiving portion 205, a sufficient bonding area can be secured between the badge 300 and the head body 200. As shown in Figure 8, the vertical length L of the extension 210 is not particularly limited, but in order to more effectively enhance the above-mentioned effect, it may be, for example, 3 mm or more, preferably 4 mm or more, and even more preferably 5 mm or more. On the other hand, if the vertical length L of the extension 210 is excessively large, the center of gravity of the head may be raised, so it may be, for example, 10 mm or less, preferably 9 mm or less, and even more preferably 8 mm or less.

[0041] The extension 210 distributes weight to the top 3 side of the head 1, which tends to raise the head's center of gravity. On the other hand, at least a portion of the extension 210 is located on the side of the striking surface that is greater than the virtual plane 206V which extends the receiving surface 206 downward along the striking surface 2, so the head's center of gravity also moves forward. Therefore, the head 1 of this embodiment can suppress the position of the sweet spot from becoming higher, and consequently, suppress the decrease in rebound performance in the lower region of the striking surface 2, which is the actual striking position of the iron-type head 1. In order to effectively enhance the above effect, the protrusion distance P of the extension 210 from the virtual plane 206V is not particularly limited, but may be, for example, 0.3 mm or more, preferably 0.4 mm or more. The upper limit of the protrusion distance P is not particularly limited, but may be set appropriately within a range where the face plate 100, which is bent when hitting the ball, does not come into contact with the extension 210.

[0042] Figure 9 is a cross-sectional view of the top portion of comparative example head A, which does not have the extension portion 210 of this embodiment. As shown in Figure 9, this comparative example head A has only a top-side receiving portion 205 on the top portion 201 and does not have the extension portion 210 (shown by dashed lines) as in this embodiment. While such comparative example head A can suppress the raising of the head's center of gravity, it cannot secure a sufficient bonding area between the badge 300 and the top portion 201, resulting in the problem of the badge 300 peeling off prematurely.

[0043] Figure 10 is a cross-sectional view of the top portion of another comparative example head B that does not have the extension portion 210 of this embodiment. As shown in Figure 10, this comparative example head B has an extension portion 210' on the top portion 201, but the extension portion 210' extends straight downward from the top-side receiving portion 205 and is not located on the striking surface 2 side of the virtual plane 206V. In such a comparative example head B, a large bonding area can be secured by utilizing the extension portion 210, but the center of gravity of the head will be higher and the sweet spot may also be higher.

[0044] The head 1 of this embodiment can solve the problems of comparative example heads A and B, as shown in Figures 9 and 10.

[0045] Furthermore, since the head 1 of this embodiment is structurally a cavity back, it offers excellent forgiveness in terms of ball direction even on mis-hits. In addition, the badge 300 of the head 1 of this embodiment can provide the back surface 6 of the head 1 with an appearance and design different from a cavity back (in this embodiment, a muscle back shape). Therefore, the head 1 of this embodiment can achieve both forgiveness when hitting the ball and a head appearance suitable for advanced players, thus satisfying the needs of users with such preferences.

[0046] Some more preferred embodiments of the head 1 of this embodiment are described below.

[0047] As shown in Figure 8, the extension 210 has a thickness in a direction perpendicular to the striking surface 2. For example, it is desirable that the thickness of the extension 210 decreases downwards. In the embodiment of Figure 8, the thickness of the extension 210 decreases in stages downwards. More specifically, the extension 210 has thicknesses t1, t2, and t3 downwards, and these thicknesses are formed to satisfy the relationship t1>t2>t3. In this embodiment, the thickness changes in three stages, but there may be two types. By reducing the thickness of the extension 210 in this way, the weight of the extension 210 can be reduced as much as possible, and the rise in the head's center of gravity can be suppressed.

[0048] Furthermore, the rear surface 210a of the extension 210 includes a stepped surface that is positioned progressively toward the striking surface 2 toward the downward direction. In this embodiment, the rear surface 210a of the extension 210 is configured to gradually approach the striking surface 2 toward the downward direction in three stages. Such an extension 210 can more effectively position the head's center of gravity forward and effectively suppress the position of the sweet spot from rising.

[0049] Figure 11 shows a modified example of the extension 210, specifically a partial cross-sectional view near the top portion 201. As shown in Figure 11, the thickness t of the extension 210 may be configured to continuously decrease downwards. More specifically, in this example, the rear surface 210a of the extension 210 is formed as a slope that inclines downwards toward the striking surface 2. As a result, the thickness t of the extension 210 is tapered toward the end portion 210e. Such an extension 210 can more effectively position the head's center of gravity forward and effectively suppress the rise of the sweet spot.

[0050] Figure 12 shows a rear view of the head body 200 in a vertical position. As shown in Figure 12, the extension 210 extends continuously in the toe-heel direction, for example, along the top portion 201. In a preferred example, the extension 210 may extend continuously for, for example, 80% or more, or even 90% or more, of the distance W of the face line 7 formation area. Such an extension 210 can ensure a continuous bonding area between the badge 300 and the head body 200 in the toe-heel direction, further improving the peel resistance of the badge 300.

[0051] Figure 13 shows another example of the extension 210, a rear view of the head body 200 in a vertical position. As shown in Figure 13, the extension 210 is divided into a toe-side extension 210t and a heel-side extension 210h, which is spaced apart from the toe-side extension 210t. No extension 210 is formed between the toe-side extension 210t and the heel-side extension 210h. Such an extension 210 can concentrate its own weight on the toe and heel sides of the head body 200 while ensuring a contact area with the badge 300. Therefore, the extension 210 in this example offers the new advantage of increasing the moment of inertia of the head 1 about a vertical axis passing through the head's center of gravity.

[0052] Figure 14 shows another example of the extension 210, a rear view of the head body 200 in a vertical position. As shown in Figure 14, the extension 210 in this example extends continuously in the toe-heel direction. Also, the vertical length L of the extension 210 in this example is formed to be greater on the toe side than on the heel side. Such an extension 210 can distribute more weight to the toe side of the head body 200 while ensuring a sufficient contact area with the badge 300. This helps to shift the center of gravity of the head towards the toe side. Note that in this example, the vertical length L of the extension 210 increases continuously from the heel side to the toe side, but it may increase in stages.

[0053] Figure 15 shows another example of the extension 210, a rear view of the head body 200 in a vertical position. As shown in Figure 15, the extension 210 in this example extends continuously in the toe-heel direction. Also, the vertical length L of the extension 210 in this example is formed to be greater on the heel side than on the toe side. Such an extension 210 can distribute more weight to the heel side of the head body 200 while ensuring a sufficient contact area with the badge 300. This helps to shift the center of gravity of the head towards the heel side. Note that in this example, the vertical length L of the extension 210 increases continuously from the toe side to the heel side, but it may increase in stages.

[0054] Figure 16 shows another example of the extension 210, a rear view of the head body 200 in a vertical position. As shown in Figure 16, the extension 210 in this example extends continuously in the toe-heel direction. The extension 210 in this example also includes a toe-side extension 210t, a heel-side extension 210h, and an intermediate extension 210m located between them. In this example, the vertical length Lt of the toe-side extension 210t and the vertical length Lh of the heel-side extension 210h are formed to be greater than the vertical length Lm (Lm>0) of the intermediate extension 210m located between them. That is, the length of the extension 210 is greater on the toe and heel sides than on the intermediate part in the toe-heel direction. Such an extension 210 can concentrate its own weight on the toe and heel sides of the head body 200 while ensuring sufficient contact area with the badge 300. Therefore, the extension 210 in this example offers a new advantage: it increases the moment of inertia of the head 1 about the vertical axis passing through the head's center of gravity.

[0055] Although embodiments of the present invention have been described in detail above, the present invention is not limited to the specific disclosures described above, and can be implemented with various modifications within the scope of the technical idea described in the claims.

[0056] [Note] The present invention includes the following embodiments.

[0057] [Invention 1] It is a golf club head, A head body having a top section, A face plate fixed to the front side of the head body, This includes a badge fixed to the rear side of the head body, The face plate includes a front surface of the plate that constitutes part of the striking surface, and a rear surface of the plate that is opposite to the front surface of the plate. The rear surface of the plate has a peripheral projection that extends along the outer edge of the face plate and protrudes toward the rear of the head. The head body is, The opening in which the faceplate is to be placed, A top-side receiving portion extending downward from the top portion and having a receiving surface that contacts the rear surface of the peripheral protrusion, Including an extension that extends further downward from the top receiving portion, At least a portion of the extension is located on the striking surface side of the virtual plane that extends the receiving surface downward along the striking surface, but does not come into contact with the faceplate. The badge is not in contact with the faceplate. The upper part of the badge is fixed to at least the extension. Golf club head. [2nd Invention] The golf club head according to the present invention 1, wherein the upper part of the badge is fixed across both the extension and the top receiving portion. [Invention 3] The extension has a thickness defined in a direction perpendicular to the striking surface, The golf club head according to invention 1 or 2, wherein the thickness of the extension decreases downward. [4th Invention] The rear surface of the extension includes a stepped surface that is progressively located toward the striking surface, as described in any one of claims 1 to 3 of the present invention. [5th ​​Invention] The extension has a thickness defined in a direction perpendicular to the striking surface, The golf club head according to any one of claims 1 to 3 of the present invention, wherein the thickness of the extension portion decreases continuously downward. [Invention 6] The head body defines the toe and heel, The golf club head according to any one of claims 1 to 5 of the present invention, wherein the extension extends continuously in the toe-heel direction along the top portion. [7th Invention] The head body defines the toe and heel, The golf club head according to any one of claims 1 to 5 of the present invention, wherein the extension is divided into a toe-side extension and a heel-side extension provided at a distance from the toe-side extension. [8th Invention] The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to any one of claims 1 to 6 of the present invention, wherein the length of the extension is greater on the toe side than on the heel side. [Invention 9] The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to any one of claims 1 to 6 of the present invention, wherein the length of the extension is greater on the heel side than on the toe side. [Invention 10] The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to any one of claims 1 to 6 of the present invention, wherein the length of the extension is greater on the toe side and heel side than on the intermediate side in the toe-heel direction. [Invention 11] An iron-type golf club head according to any one of claims 1 to 10 of the present invention. [Explanation of Symbols]

[0058] 1 Golf club head 2. Striking surface 3 Top 100 Faceplates 101 Plate front 102 Rear of the plate 104 Peripheral protrusion 104a Rear 200 Head Body 201 Top Section 205 Top side receiving part 206 Receiving surface 206V virtual plane 210 Extension 210a Rear view of the extension 300 badges O opening

Claims

1. It is a golf club head, A head body having a top section, A face plate fixed to the front side of the head body, This includes a badge fixed to the rear side of the head body, The face plate includes a front surface of the plate that constitutes part of the striking surface, and a rear surface of the plate that is opposite to the front surface of the plate. The rear surface of the plate has a peripheral projection that extends along the outer edge of the face plate and protrudes toward the rear of the head. The head body is, The opening in which the faceplate is to be placed, A top-side receiving portion extending downward from the top portion and having a receiving surface that contacts the rear surface of the peripheral protrusion, Including an extension that extends further downward from the top receiving portion, At least a portion of the extension is located on the striking surface side of the virtual plane that extends the receiving surface downward along the striking surface, but does not come into contact with the faceplate. The badge is not in contact with the faceplate. The upper part of the badge is fixed to at least the extension. Golf club head.

2. The golf club head according to claim 1, wherein the upper part of the badge is fixed across both the extension and the top receiving portion.

3. The extension has a thickness defined in a direction perpendicular to the striking surface, The golf club head according to claim 1, wherein the thickness of the extension decreases downward.

4. The golf club head according to claim 1, wherein the rear surface of the extension includes a stepped surface that is progressively located toward the striking surface towards the downward direction.

5. The extension has a thickness defined in a direction perpendicular to the striking surface, The golf club head according to claim 1, wherein the thickness of the extension portion decreases continuously downward.

6. The head body defines the toe and heel, The golf club head according to claim 1, wherein the extension extends continuously in the toe-heel direction along the top portion.

7. The head body defines the toe and heel, The golf club head according to claim 1, wherein the extension is divided into a toe-side extension and a heel-side extension provided at a distance from the toe-side extension.

8. The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to claim 1, wherein the length of the extension is greater on the toe side than on the heel side.

9. The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to claim 1, wherein the length of the extension is greater on the heel side than on the toe side.

10. The head body defines the toe and heel, The extension defines the vertical length measured downward along the striking surface, The golf club head according to claim 1, wherein the length of the extension is greater on the toe side and heel side than on the intermediate side in the toe-heel direction.

11. An iron-type golf club head according to any one of claims 1 to 10.

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