KR20220151789A - Golf club head - Google Patents

Abstract

The present invention relates to a golf club head constituting a golf club by coupling with a shaft and to a golf club head that induces a center of gravity to be located at a lower part when a golf club swings and has a curved step part including a plurality of stepped blades on one side to reduce air resistance. A purpose of the present invention is to provide a golf club head that increases a flight distance of a golf ball by reducing air resistance generated when the golf club swings, and by improving a hitting accuracy of the golf club and increasing an acceleration due to a low center of gravity design that distributes the center of gravity of the golf club head to the lower part.

Description

Head for golf club {Golf club head}

The present invention relates to a head for a golf club, and more particularly, a golf club having a blade considering the flow of air generated during swing of the golf club to improve the hitting accuracy of the golf club and increase the acceleration to increase the flight distance of the golf ball. It's about the club head.

The population of golf is increasing worldwide, and the population enjoying golf is gradually increasing in Korea. Unlike soccer, basketball, volleyball, and other sports, golf is not greatly restricted by physical conditions, and compared to other sports, golf is widely and rapidly spreading widely and rapidly, regardless of gender, because it is less aggressive due to physical contact between players. In this type of golf, by hitting a golf ball of a certain diameter using various golf clubs, the superiority or inferiority is determined by the number of strokes until it is put into a predetermined hole cup, and the golf clubs used at this time are regulated by standards.

On the other hand, when the golf ball is hit by the golf club, the golf ball reacts very sensitively according to the swing posture of the golfer, the type of golf club, the holding state of the grip, the condition of the golfer, etc. Address), swing posture, and the selection of golf clubs are very important factors.

That is, when a golf ball placed on a fairway or green is hit with the face of the head using a golf club, the golf ball moves in the hitting direction due to the impact force and repulsive force at this time. At this time, the volume and face of the head of the golf club As the flying distance and direction of the golf ball are variously changed according to the slope of the golf club, it is required to select a golf club suitable for each situation.

The number of golf clubs that a golfer can hold during a game is usually limited to 14, which is called a full set, and generally consists of 4 woods, 9 irons, and 1 putter. The types of woods usually used for long distance are the 1-wood (Driver), the 2-wood (Brush), the 3-wood (Spoon), the 4-wood (Buffy), the 5-wood (Cleek), and the 7-wood. There are Heaven, 9-wood, and 11-wood, and among them, the 1-wood is the longest and is used to send the golf ball the farthest, so it is mainly used for tee shots of each hole. used

In addition, irons are used for targeting the golf ball toward the green after the first tee shot with a driver. (approximately 4 degrees) and the length of the shaft, and each product number has a slight difference in the flight distance.

Such a golf club includes a head having a hosel coupled to a face, which is a striking surface of a golf ball, and a shaft, a shaft coupled to the head, and capable of being gripped at the end of the shaft. It consists of a handle that is formed.

On the other hand, in order to improve the performance of golfers in golf, efforts to accurately hit the golf ball on the sweet spot (target in the center of the club head) of the head and selection of golf clubs are very important. It is also very important to improve the direction and distance of the ball by reducing the weight of the head, which occupies a large part. That is, the center of gravity of the head is an important factor in determining whether the golf ball moves in the intended direction.

Therefore, there is a demand for a golf club capable of minimizing air resistance, improving flight distance by using physical properties, or allowing a golf ball to fly in a direction desired by a user.

Related prior arts have been proposed to address these needs.

A head for a golf club of the proposed prior art 1 (Korean Patent Registration No. 10-2138763) is a golf club including a head having a face and a shaft extending from one side of the head, wherein the head includes the An air passage hole penetrating from the face is formed on the other side opposite to the part coupled to the shaft, and a coupling member having a female thread formed by a certain length from the face is inserted and coupled by an interference fit, among the air passage holes, It further includes a stopper having a threaded portion formed on an outer circumferential surface thereof to be fastened with the female screw of the coupling member, and a solid cap inserted into an empty space of the air passage hole in a state in which the coupling member and the stopper are coupled, wherein the solid cap is coupled to the head. It is characterized in that it is made of the same material, and an air passage hole is formed in a specific part of the head during swing of the golf club, thereby providing an effect of reducing slice occurrence due to opening of the head.

However, in the case of the prior art 1, since there is no configuration for reducing air resistance generated in the golf club head during swing, an accurate impact on the sweet spot is limited, so that the flying distance of the golf ball is shortened and there is a limit to sending it in a desired direction.

Korean Patent Registration No. 10-2138763 : Head for golf club

The present invention was created to solve the above problems of the prior art, and reduces air resistance generated when the golf club swings and distributes the center of gravity of the head for the golf club to the lower part of the golf club with a low center of gravity design. An object of the present invention is to provide a head for a golf club that increases hitting accuracy and increases acceleration to increase a golf ball's flying distance.

In order to achieve the above object, the golf club head according to the present invention is combined with a shaft to form a golf club, inducing the center of gravity to be located at the lower part when the golf club swings, and reducing air resistance. For this, a curved stepped portion including a plurality of stepped blades is provided on one side.

A face portion having a hitting surface for hitting a golf ball formed on one side thereof, an upper end portion connected to an upper portion of the face portion, and a sole portion connected to the lower portion of the face portion and having the blade formed thereon, wherein the The blade extends outward along the spiral direction based on the central position of the sole part, and the curved member formed to incline at a predetermined angle in the width direction with respect to the horizontal plane, and a stepped member interconnecting the edges of the two adjacent curved members And, each of the curved members is characterized in that one edge in the width direction is formed higher than the edge of the other side.

A weight coupling groove provided to be drawn in at a predetermined depth is formed on the bottom surface of the sole portion corresponding to the center of the blade, and a weight control unit including a weight that is fastened to the weight coupling groove to adjust weight and center of gravity Further provided do.

The blade has an inner curved member formed corresponding to the curved member on the upper surface of the sole so as to guide the user to position the center of gravity at the lower part of the golf club head when swinging. An inner stepped member interconnecting the edges of the two adjacent inner curved members is provided.

The thickness of the blade is characterized in that each formed differently.

It is characterized in that the thickness of the blade is formed differently in a spiral direction based on the central position of the sole part so that the position of the center of gravity can be adjusted according to the user's physical condition and needs.

A cavity curved member formed to be drawn in at a predetermined depth in a direction parallel to the face between the curved stepped portion and the face portion so that vibration generated by repulsion by a golf ball during swing of the face portion is not transmitted to the curved stepped portion. It has a cavity part that does.

A face portion having a hitting surface for hitting a golf ball is formed on one side thereof, an upper end portion connected to the upper portion of the face portion, a sole portion connected to the lower portion of the face portion, and a rear portion of the face portion formed on one side. It includes a back face on which the blade is formed, and the blade has a curved member extending upward with a predetermined curvature as it progresses from one side of the back face to the other side to which the shaft is connected, and edges of two adjacent curved members. Each of the curved members is provided with a step member interconnected, and each of the curved members is characterized in that one edge is formed higher than the edge of the other side in the width direction.

The blade is characterized in that the edge of the blade gradually increases in width in a direction extending upward with a predetermined curvature as the shaft moves from one side of the back face to the other side to which the shaft is connected.

A plurality of balance grooves spaced apart from each other by a predetermined distance vertically are formed on the back face, and a balance control unit including a balance member fastened to the balance groove to adjust weight and center of gravity is provided.

The balance member includes a plurality of balance weights formed to be inserted into the balance groove, a plate provided with a balance coupling groove inserted at a predetermined depth on one side to connect the balance weight, and the balance weight to the balance coupling groove so that the balance weight is connected to the plate. It is provided with a balance coupling protrusion formed to protrude a predetermined length from the balance weight so as to be drawn in.

The golf club head of the present invention reduces air resistance generated when the golf club swings and improves the hitting accuracy of the golf club with a low center of gravity design that distributes the center of gravity of the golf club head to the lower part and increases the acceleration. It has the advantage of being able to increase the flight distance of the golf ball.

1 is a perspective view of a golf club including a golf club head of the present invention;
2 is a rear view according to an embodiment of a head for a golf club according to the present invention;
3 is a partial cutaway perspective view in which the face portion of FIG. 2 is cut away;
4 is a cross-sectional view taken along the line A-A' in FIG. 2;
5 is a perspective view according to another embodiment of a head for a golf club according to the present invention;
6 is an exploded perspective view of the balance control unit of FIG. 5;
7 is a perspective view according to another embodiment of a head for a golf club according to the present invention;
8 is an exploded perspective view of the balance control unit of FIG. 7;
9 is an exploded perspective view of the balance plate of FIG. 7;

Hereinafter, a head for a golf club according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure. With respect to the accompanying drawings, the dimensions of the structures are shown enlarged than the actual for clarity of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, it should not be interpreted in an ideal or excessively formal meaning. don't

1 shows a golf club including a golf club head 10 of the present invention.

The golf club of this embodiment includes a golf club head 10 according to the present invention and a shaft 2 connected to one side of the golf club head 10 and long coupled in the vertical direction, and the shaft 2 and the golf club head 10 according to the present invention. A hosel (1) formed at the connection part of the club head (10) to absorb shock generated during swing, and a hosel (1) formed on one side of the shaft (2) connected to the hosel (1) to be gripped by the user during swing. It is provided with a grip (3) formed to be able to.

At this time, the hosel 1, the shaft 2, and the grip 3 can be applied with various conventional technologies developed.

2 to 4, the golf club head 10 is combined with the shaft 2 to form a golf club, and includes a face part 100, an upper end part 200, a sole part 300, a curved It has a stepped part 400, a weight control part 500, and a cavity part 600.

The face part 100 has a hitting surface 110 for hitting a golf ball formed on one side thereof, and the thickness of the face part 100 may be formed so that the hitting part on which the golf ball is hit is relatively thicker than the rest of the face part 100. have.

The hitting surface 110 may be flat or formed in a curved shape curved at a predetermined angle in the width direction, or may be formed inclined at a predetermined angle.

In addition, the face part 100 extends in the horizontal direction to the hitting surface 110 corresponding to the golf ball so that backspin is easily formed when the golf ball is hit by the hitting surface 110, and vertically. It includes a plurality of grooves 120 spaced apart from each other by a predetermined interval.

Since the face portion 110 is a portion directly hit by a golf ball, it is preferably made of a metal material having high strength and high specific gravity. For example, tungsten, titanium, titanium alloy, stainless steel, aluminum, and similar metal materials may be applied.

The upper part 200 is connected to the upper part of the face part 100 and is formed in the form of a curved surface convex upward from front to rear in the direction in which the golf club swings in consideration of the air flow generated when the user swings. It is preferable to be, and a flat shape is also applicable.

In addition, one side of the upper end portion 200 may include a plurality of airfoils (not shown) that generate lift like an airplane wing for an impactful blow by reducing air resistance.

Since the upper part 200 is preferably made of a lightweight or low-density material, materials such as polycarbonate, thermosetting polyurethane, polyamide, polybutylene terephthalate (PBT), and polyurethane mixture are used. can be applied

The sole part 300 is connected to the lower part of the face part 100 and is formed in a curved shape that is convex downward from the front to the rear in the direction in which the golf club swings. The rear of the sole 300 and the rear of the upper end 200 are connected to each other in the swinging direction of the golf club.

The curved stepped portion 400 induces the center of gravity of the club head 10 to be located at the bottom when the golf club swings, and is formed on the sole portion 300 to reduce air resistance, and the plurality of stepped blades 410 ).

The blade 410 extends outward in a spiral direction based on the center position of the sole part 300 so that the position of the center of gravity can be adjusted according to the user's physical condition and needs, and has a predetermined angle in the width direction with respect to the horizontal plane. It is inclined, and the thickness of the blade 410 is formed differently, and each of the blades 410 is also formed in various thicknesses, and the curved member 411, the inner curved member 412, and the stepped member 413 , It is provided with an internal stepped member 414.

In order to explain the process of the blade 410 reducing air resistance and moving the center of gravity, the user first hits a golf ball in each hole to maximize the distance of the golf ball. A driver club used when performing a swinging motion of swinging a golf club with strong force on a golf ball seated on a small stand the size of a nail on which to place a golf club is described as an example.

When the user performs the swing motion, the shaft 2 is lifted parallel to the ground by lifting the club while rotating the body (top of swing), and then the golf club is pulled down toward the golf ball. During (downswing), a very fast air flow instantaneously occurs at the bottom of the sole part 300 due to the strong force of the user.

At this time, due to the curved member 411 curved in a spiral form in the sole part 300, the flow of air flows in a tornado form toward the center of the sole part 300, and the air introduced into the center part is returned to the sole part ( 300) moves downward from the center and is dispersed to reduce air resistance to the sole part 300.

In addition, due to the curved stepped portion 400 curved in the form of a spiral tornado in the sole portion 300, a centripetal force is generated to move the center of gravity to the center of the golf club head 10 during swing, resulting in accurate swing and The driving distance of the golf ball is increased by enabling hitting.

Then, at the moment when the face part 100 strikes the golf ball, the air introduced in the form of a tornado toward the center of the sole part 300 moves from the center of the sole part 300 toward the ground again, and the golf club and It acts as a force to maintain a predetermined distance between the ground and reduces air resistance between the sole part 300 and the ground due to the applied force.

The curved member 411 is formed on the lower surface of the sole part 300, extends outward in a spiral direction based on the center position of the sole part 300, and is inclined at a predetermined angle in the width direction with respect to the horizontal plane, Each of the curved members 411 has one edge higher than the other edge in the width direction.

The inner curved member 412 is formed on the upper surface of the sole part 300 to correspond to the curved member 411 so that the center of gravity is positioned below the golf club head 10 when a user swings.

The stepped member 413 interconnects the edges of the two adjacent curved members 411, and cross-section in the stepped direction of the curved member 411 along the spiral direction based on the central position of the sole part 300. It is preferable that the shape is formed to be curved, and a flat cross-sectional shape is also applicable.

The inner stepped member 414 is formed to correspond to the stepped member 413 and connects the edges of the two adjacent inner curved members 412 to each other, along the spiral direction based on the central position of the sole part 300. It is preferable that the cross-sectional shape of the inner curved member 411 in the stepped direction is formed as a plane bent at a predetermined angle, and a curved shape is also applicable.

The weight control unit 500 is provided to adjust the weight and center of gravity of the golf club head 10 of the present invention, and includes a weight 510 and a weight coupling groove 520.

The weight 510 is fastened to the weight coupling groove 520 so that the center of gravity is adjusted using the weight of the golf club. is preferred, but polygonal hexahedrons can also be applied. Although not shown in the drawings, it is preferable to fasten by screws, and various conventional technologies that can be replaced after fastening may be applied.

The weight coupling groove 520 is provided to be inserted into the bottom surface of the sole part 300 corresponding to the center of the blade 410 to a predetermined depth and has a shape of a cylindrical groove so that it is fastened with the weight weight 510. The shape of the cross section may be formed as a polygon so that the weight 510 of one polygon is inserted. Although not shown in the drawings, a plurality may be formed on the face portion 100 and the upper portion 200 without limiting the number and location of formation.

The cavity part 600 is formed so that vibration generated by repulsion by a golf ball when swinging the face part 100 is not transmitted to the curved step part 400, and the cavity curved member 610, the cavity step A member 620 is provided.

The cavity curved member 610 is inserted between the curved stepped portion 410 and the face portion 100 to a predetermined depth in a direction parallel to the face portion 100, and corresponds to the curved stepped portion 400. One side of the blade 410 is formed to be curved along the outer side. Preferably, the cavity curved member 610 is made of a material having better restoring force than the material forming the sole part 300 so as to dampen or block the vibration of the golf ball transmitted from the face 100 .

The cavity step member 620 is inserted from the lower side of the sole portion 300 toward the upper end portion 200 by a predetermined depth to connect the cavity curved member 610 and the sole portion 300, and the forming material is It is preferable to be formed in the same way as the cavity curved member 6210.

The above-described golf club head 10 of the present invention reduces air resistance that may occur in the sole part 300 when a user swings by the curved stepped part 400, thereby increasing the flight distance with an impactful swing. There are advantages to being able to.

On the other hand, Figures 5 to 6 are shown another embodiment of the head 20 for a golf club.

Elements that perform the same functions as in the previously shown drawings are denoted by the same reference numerals.

Referring to the drawings, the golf club head 20 includes a back face 700, a curved step portion 800, and a balance adjusting portion 900.

The back face 700 has an upper end connected to the upper end 200 and a lower end connected to the sole part 300, so that the face part 100 and the rear part are inclined at a predetermined angle with respect to the ground.

The curved stepped portion 800 induces the center of gravity to be located at the lower portion when the golf club swings, and includes a plurality of stepped blades 810 formed on the back face 700 to reduce air resistance.

The blade 810 moves upward with a predetermined curvature as it proceeds from one side of the back face 700 to which the shaft 2 is connected to the other side so that the position of the center of gravity can be adjusted according to the user's physical condition and needs. As the width of the edge gradually increases in the extending direction, a curved member 811 and a stepped member 812 are provided.

In order to explain the process of reducing air resistance and moving the center of gravity of the blade 810 of the head 20 for a golf club according to the present invention described above, after a user makes a tee shot with a driver for the first time, golf toward the green. As used for targeting a ball, an iron club that requires a sophisticated swing motion with weaker force than a driver club will be described as an example.

When the user performs a swing motion, an instantaneous air flow is generated on the outer surface of the backface 700 by the user's force when the golf club is pulled down toward the golf ball (downswing). At this time, due to the curved member 811 curved in the spiral form, a tornado-shaped air flow is directed toward one side of the back face 700 connected to the shaft 2, and air is introduced into the shaft. After moving to the rear of (2), it is dispersed to reduce air resistance.

In addition, the back face 700 connected to the shaft 2 of the golf club head 20 during swing due to the curved deceleration part 800 curved in the form of a spiral tornado on the back face 700 Centripetal force is generated to move the center of gravity to one side, enabling accurate swing and hitting.

Therefore, air resistance is reduced at the rear of the back face 700 so that the angle formed by the face portion 100 and the golf ball can be maintained at an angle desired by the user during a swing motion.

The curved member 811 extends upward with a predetermined curvature as it progresses from one side of the back face 700 to which the shaft 2 is connected to the other side, and each of the curved members 811 has one side in the width direction. It is preferable that the edge is formed higher than the edge of the other side.

The stepped member 812 interconnects the edges of the curved members 811 and extends upward with a predetermined curvature as the shaft 2 is connected from one side of the back face 700 to the other side. The cross section in the step direction of the curved member 811 along the direction is preferably formed in a plane, and may be formed curved.

The balance control unit 900 is formed on the back face 700 to adjust the weight and center of gravity according to the user's physical condition and needs, and includes a balance groove 910 and a balance member 920. .

The balance groove 910 is a plurality of circular grooves inserted from the outer surface of the back face 700 toward the face portion 100 at a predetermined depth and spaced apart from each other at a predetermined distance vertically on the back face 700. do.

The balance member 920 is fastened to the balance groove 910 to adjust the weight and the center of gravity. A plurality of the balance member 920 is formed at one side of the blade 810 spaced apart from each other by a predetermined distance, and the volume is the same but the weight is various. It may be formed and the shape is preferably in the form of a cylinder, and fixing protrusions (not shown) are formed at predetermined intervals along the outer circumferential surface so that the balance member 920 can be fastened when entering the balance groove 910.

The above-described golf club head 20 of the present invention has an advantage in that the center of gravity can be adjusted to suit the user by the balance adjusting unit 900, so that the golf ball can be moved to a desired position with an accurate swing.

Meanwhile, FIGS. 7 to 9 show another embodiment of the head 30 for a golf club.

Referring to the drawings, the balance member 930 of the golf club head 30 is formed on the back face 700 to adjust the weight and center of gravity according to the user's physical condition and needs, A weight 931, a plate 932, and a balance coupling protrusion 933 are provided.

The balance weight 931 is formed in plurality so as to be inserted into the balance groove 910, and is formed to be spaced apart from each other at a predetermined distance vertically on one side of the blade 810 to adjust the weight and center of gravity, and the shape is a cylindrical shape. is preferable, and the cross-sectional shape of a square, pentagonal or hexagonal column is also preferable.

In addition, the face portion 100 is installed in the balance weight 931 on the corresponding surface of the balance weight 931 and the plate 932 so that a heavy object (not shown) can be introduced into the balance weight 931. A plurality of balance adjustment grooves 934 drawn in at a predetermined depth toward are formed.

The plate 932 is provided with a balance coupling groove 935 drawn in at a predetermined depth on one side to connect the balance weight 931, and to attach and detach the plurality of balance weights 931 to the outside other than the blade 810. It corresponds to the side and is preferably formed so as not to intersect the flow of air on the outer surface of the blade 810.

The balance coupling protrusion 933 protrudes a predetermined length from the balance weight 933 so that the balance weight 931 is inserted into the balance coupling groove 935 so as to be connected to the plate 932 .

The above-described golf club head 30 of the present invention has an advantage that the user can easily adjust the center of gravity by the balance member 930.

Because the rules for golf can change from time to time (e.g. new rules may be adopted, old rules may be passed on to golf standards bodies such as the United States Golf Association (USGA), the Royal and British Golf Association (R&A), etc.) or specific governing bodies. Golf equipment associated with the devices and articles of manufacture described herein may or may not follow the Rules of Golf at any particular time. Accordingly, golf equipment related to the devices and products of manufacture described herein may be advertised and offered for sale as suitable or unsuitable golf equipment. The devices and articles of manufacture described within this specification are not limited in this respect.

While the above examples may be described with respect to driver-type and iron-type golf clubs, the devices and articles of manufacture described herein may be fairway wood-type golf clubs, hybrid-type golf clubs, terrain golf clubs, or putter-type golf clubs. It can also be applied to other types of golf clubs, such as golf clubs. Alternatively, the devices and articles of manufacture described herein may be applied to other types of sports equipment, such as hockey sticks, tennis racquets, fishing rods, ski poles, and the like.

The description of the presented embodiments is provided to enable any person skilled in the art to use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

1: hosel 2: shaft
3 : Grip
10, 20, 30: head for golf club
100: face part 110: hitting surface
120: groove
200: upper part
300: brush part
400, 800: curved step portion 410, 810: blade
411, 811: curved member 412: inner curved member
413, 812: stepped member 414: internal stepped member
500: weight control unit 510: weight
520: weight coupling groove
600: cavity part 610: cavity curved member
620: cavity step member
700: Backface
900: balance control unit 910: balance home
920, 930: balance member
931: balance weight 932: plate
933: balance coupling protrusion 934: balance adjustment home
935: balance coupling groove

Claims (11)

In the head for a golf club constituting a golf club by combining with a shaft,
Characterized in that the golf club has a curved step portion including a plurality of blades stepped on one side to induce the center of gravity to be located at the bottom during swing and to reduce air resistance,
Heads for golf clubs. According to claim 1,
A face portion having a hitting surface for hitting a golf ball on one side thereof;
An upper end portion connected to the upper portion of the face portion;
It is connected to the lower part of the face part and includes a sole part on one side of which the blade is formed,
the blade
The curved member extending outward in a spiral direction based on the central position of the sole part and inclined at a predetermined angle in the width direction with respect to the horizontal plane;
A stepped member interconnecting the edges of the two adjacent curved members,
Each of the curved members is characterized in that one edge in the width direction is formed higher than the edge of the other side.
Heads for golf clubs. According to claim 2,
A weight coupling groove is formed on the bottom surface of the sole part corresponding to the center of the blade to be inserted to a predetermined depth,
Characterized in that it further comprises a weight control unit including a weight that is fastened to the weight coupling groove and adjusts the weight and center of gravity.
Heads for golf clubs. According to claim 3,
the blade
An inner curved member formed on the upper surface of the sole part to correspond to the curved member so as to induce the center of gravity to be located at the lower part of the golf club head when a user swings.
Characterized in that it comprises an inner stepped member interconnecting the edges of the two adjacent inner curved members.
Heads for golf clubs. According to claim 4,
Characterized in that the thickness of the blade is formed differently, respectively,
Heads for golf clubs. According to claim 5,
Characterized in that the thickness of the blade is formed differently in a spiral direction based on the center position of the sole part so that the position of the center of gravity can be adjusted according to the user's physical condition and needs.
Heads for golf clubs. According to claim 6,
A cavity curved member formed to be drawn in at a predetermined depth in a direction parallel to the face between the curved stepped portion and the face portion so that vibration generated by repulsion by a golf ball during swing of the face portion is not transmitted to the curved stepped portion. Characterized in that it has a cavity portion to do,
Heads for golf clubs. According to claim 1,
A face portion having a hitting surface for hitting a golf ball on one side thereof;
An upper end portion connected to the upper portion of the face portion;
A sole part connected to the lower part of the face part;
It is formed on the rear part of the face part and includes a back face on which the blade is formed on one side,
the blade
A curved member formed to extend upward with a predetermined curvature as the shaft moves from one side of the back face to the other side to which the shaft is connected;
A stepped member interconnecting the edges of the two adjacent curved members,
Each of the curved members is characterized in that one edge is formed higher than the edge of the other side in the width direction,
Heads for golf clubs. According to claim 8,
Characterized in that the blade gradually increases in width at the edge in a direction extending upward with a predetermined curvature as it proceeds from one side of the back face to the other side to which the shaft is connected,
Heads for golf clubs. According to claim 9,
A plurality of balance grooves spaced apart from each other by a predetermined distance are formed on the back face,
Characterized in that it is provided with a balance control unit including a balance member fastened to the balance groove to adjust the weight and center of gravity.
Heads for golf clubs. According to claim 10,
The balance member is
A plurality of balance weights formed to be drawn into the balance groove;
A plate provided with a balance coupling groove drawn in at a predetermined depth on one side to connect the balance weight;
Characterized in that the balance weight is provided with a balance coupling protrusion formed to protrude a predetermined length from the balance weight so that the balance weight is drawn into the balance coupling groove so as to be connected to the plate.
Heads for golf clubs.

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