JP3200272U - Golf club head - Google Patents

Abstract

Provided is a golf club head that facilitates a center of gravity position of a golf club head and a variable height difference of the center of gravity position. The outer shell wall body includes a face, a crown, and a sole. A center of gravity variable portion 5 having a cross-sectional groove shape is extended in the face 2 direction on the sole plate portion 4a. Two center-of-gravity position adjusting weight screws 7 and 8 having different weights are provided on the vertical wall plate 6 of the center-of-gravity variable portion 5. Each of the center-of-gravity position adjusting weight screws 7 and 8 is configured to be watertightly exchangeable through an O-ring. The weight position of the center-of-gravity position adjusting weight screws 7 and 8 is displaced up and down to change the position of the center of gravity of the golf club head. [Selection] Figure 3

Description

  The present invention relates to a golf club head. More specifically, the golf club head has a golf club, for example, a driver head, a fairway wood head, etc. The main purpose is to make it possible to easily change the center of gravity of the club head and the height difference of the center of gravity. Therefore, the center of gravity position variable part is provided in the body body that integrally generates the club head weight, the balance required for the club, etc. in the sole part of the wood club head, and the weight adjustment screw mainly focusing on the center of gravity position setting is the player's own A golfer who can easily adjust the mounting and can match the golf player optimally and has a certain level of ball hitting technology. The present invention relates to a golf club head that realizes what the player intends to realize the effect of matching the shaft characteristics as well as hitting high and low trajectory balls as intended.

  Many golf clubs manufactured and sold in the market are models that focus on how easily it is possible to obtain the maximum flight distance straight, assuming an average amateur golfer. Most of them are deep, have a lower center of gravity, and are more oriented. It is said that it is an important issue to fly a hit ball in golf play to a precisely aimed point. It is known that the flight characteristics of the ball are closely related to the spin amount, compression load, rotation direction, etc. of the hit golf ball. In order to correct these, the golf player manipulated the hand gripping the shaft, and controlled the spin amount, compression load and rotation direction of the golf ball by rotating the body and moving the weight, and hit. The ball is made to fly to the target point.

  However, for advanced players or general golf players other than professional golfers, it is extremely difficult to finely control the spin rate, compression load, and direction of rotation of the golf ball, which is extremely difficult. It is difficult to hit accurately. The sweet spot is generally defined as an area or a point on the hitting face that is located on a line perpendicular to the hitting face passing through the center of gravity of the head.

  Considering these points, especially for beginner and intermediate golf players, the ballistic performance of the golf ball has a significant effect on the position of the center of gravity of the club head, the height of the center of gravity, the weight, the balance, and the impact load applied to the golf ball. It is known that the difference in height of the center of gravity has a close relationship with the launch angle and elevation angle of the golf ball, and the launch angle of the golf ball decreases as the center of gravity increases. And the product which can mount | wear with the adjustment member devised so that the gravity center position and weight distribution of several wood-shaped golf club heads may differ is provided.

  Furthermore, as is well known, a golf club head having a metal material wood-shaped main body can hardly change the weight distribution of the head main body after molding, for example, even if the weight distribution is changed, it is about 10 g. The adjustment lead sheet within 15 g is pasted on the head body to change the swing balance. And this heavy weight sheet has an adhesive layer formed on the back surface of the thick lead tape, and pastes it to the outer surface of the headpiece using the adhesive strength of the adhesive layer after separating it into the required size and weight. It is like that.

  The most common method for attaching the lead is to attach it to the club head, but it may be attached just under the grip, making the grip side heavy and lightening the swing weight. In this case, the theory is that the grip side is made heavier to reduce the amount of momentum on the grip side, and as a result, the head runs better.

  Also, when applying lead to a wood club head, the head should be placed where the effective position is the heel side of the head and the shaft insertion shaft base under the shaft hosel has the least effect on the center of gravity of the club head. Useful when you want to make the side heavy, or when you feel the club is too light. Next, the rear surface side of the head that is to be pasted when it is desired to suppress the slice at the most effective position for increasing the barycentric angle. However, the center of gravity may be sufficiently deep and the trajectory may be slightly higher. On the other hand, the reverse is often the case, so there is a lot of hacks and hooks, so it's the best place to stop this or choose a fade. Furthermore, as another method, the position is arbitrarily set and the barycentric angle is increased by a method of sticking to the sole. It has the effect of increasing the trajectory of the ball at the optimal place to lower the center of gravity angle. However, if such a heavy sheet is attached to the outer surface of the head piece, especially the sole surface that contacts or rubs against the ground surface when hit, the heavy sheet will peel off or the bonding position will shift due to strong contact or a decrease in the adhesive strength of the adhesive layer. As a result, the weight balance adjusted was out of order, or adjustment was impossible.

Utility Model Registration No. 3127234 Utility Model Registration No. 3167727 Republic of China notice number M339333 Republic of China notice number 1224017 US Patent No. 3059926 JP 2007-136068 A JP 2006-187489 A JP 2009-160377 A

Conventionally, if a relatively high trajectory is used in a driver hit, the launch angle and the leap start of the launched golf ball are adversely affected. Therefore, many club heads have formed a weight integrated at a predetermined position in order to lower the center of gravity of the club head. For this reason, it is impossible to adjust the position of the center of gravity, and there is a limit to the adjustment personally.
In contrast to the above-described technology, this device is provided with a center of gravity position variable portion in a body body formed integrally with the sole constituent material in the sole portion of the golf club head body, and a weight adjusting screw mainly placing importance on the center of gravity position setting. The golf player can easily adjust the wearing position of the golf player and can match the golf player optimally and has a certain hitting technique. The center of gravity can be moved as desired, and the ballistic trajectory and flight distance extension height difference can be adjusted very simply.

Even if the golf player's technology is at the beginner's level or intermediate level, the technology is different, and the golf player's club swing trajectory, striking form, club weight and balance, head speed, etc. also have such requirements. It is slightly different depending on the individual. However, it is a fact that conventional technology and performance changing means for golf clubs cannot accurately meet such fine technical requirements.
Further, the conventional golf club head as described above generally has the following technical problems. In the above-mentioned golf club head, since the golf club head cannot arbitrarily remove the weight distribution body, there has been a problem that the center of gravity of the golf club head cannot be newly set. Further, another club head of the Republic of China public notice number M339333 may be able to adjust the center of gravity, but from the technical point of view, there is a problem that affects the hitting effect of this club head.

  When research and verification were repeated in order to easily select the optimum center of gravity of the club head of the desired player, the purpose of this device, the gravity of the club head was concentrated in the first place. It is the point of action that works. In other words, the center of gravity of the club head should be understood as “the part that becomes the axis of the behavior when moved”, that is, if the swing is normal to some extent, the face opens and closes around the center of gravity and the face Or facing down. Therefore, every club head has a center of gravity, the distance from the shaft axis to the center of gravity is the center of gravity distance, the distance from the face surface to the center of gravity is the depth of the center of gravity, and the distance from the sole to the center of gravity is the center of gravity height. . As for how the above numerical value affects, if the distance of the center of gravity is long, the face is difficult to return and the straightness of the ball is improved. On the other hand, if the distance of the center of gravity is short, the face is easy to return and the ball is easily held.

The center of gravity depth affects the vertical direction of the face in the impact zone, and the numerical value of the center of gravity depth is large. In other words, if the center of gravity is deep, the weight is behind and the face is easy to face up and high trajectory is easy to hit. The shallower the center of gravity, the easier it is to hit a low trajectory. Further, the height of the center of gravity affects the backspin amount of the ball. When the ball is hit below the center of gravity, a lot of backspin is applied, and when the ball is hit above, the backspin is reduced. Many club heads overestimate the low center of gravity in the market because if the center of gravity is low, it is easy to catch the ball above the center of gravity and can suppress excessive spin. In this way, the behavior of the head, that is, how it moves when swinging is determined by these numerical values. Therefore, this device has a low center of gravity and a deep center of gravity, the face orientation does not change and it is easy to punch straight, an optimal trajectory with high trajectory and less spin is obtained, and conversely with a suitable high center of gravity and deep center of gravity. The present invention provides a club head having an optimum spin amount with a desired low trajectory and capable of changing the position of the center of gravity.
However, as a result of many verifications, the inventor has a greater influence on the height of the center of gravity, especially the height of the center of gravity. In this case, the center of gravity can be formed low, and on the contrary, if a heavy tungsten material or the like is embedded in the sole portion, the intended purpose can be achieved. This invention has been devised in view of these problems.

That is, as a means for achieving the above object, a golf club head according to the present invention is intended for a wood club type, and at least includes a face, a crown, and a sole, and is formed of a hollow integrally outer shell wall body, A center groove variable portion of a cross-sectional groove type having an opening in the shape of a reverse groove is extended in the face direction on the sole plate in the back sole portion close to the substantially central lower side of the crown. The two center of gravity position adjustment weight screws with different weights can be exchanged in a watertight manner, and the weight position of the mounting adjustment weight screw can be displaced up and down to change the position of the center of gravity. To do.
That is, the object is the above-mentioned wood club type, and at least includes a striking face, a crown, and a sole, and is integrally formed of an outer shell wall body. A center-of-gravity variable portion formed in a cross-sectional groove shape having an inverted groove-shaped opening is provided on the sole plate in the vicinity of the substantially central lower side of the crown so as to extend in the face direction. The core opening portion is connected to each plate of the outer shell wall body formed integrally with the above-mentioned hollow by integrally bending at the time of molding the head.
The vertical wall plate integrally formed with the center-of-gravity variable portion is formed in a vertically bent shape at a substantially same angle as the loft angle of the face, in the direction perpendicular to the sole surface toward the crown top plate. The vertical wall plate is threaded with a screw hole for mounting two weight screws for adjusting the center of gravity position having different weights arranged vertically. The screw for adjusting the center of gravity is fitted into the screw hole with an O-ring packing and water-tightly attached to the body of the club head to prevent moisture from entering and absorbing from the outside and soaking in fine dust powders. Prevents loosening of screws at the same time.
This center-of-gravity position adjustment screw is made of a material having a large specific gravity relative to the club head body, for example, a titanium alloy, a tungsten material, a stainless steel, various steel materials, a copper alloy, etc., and is engraved in the screw hole. Tighten and fix with a range using a square groove screw provided separately in the groove receiving part carved in the circumferential surface. This club head body has several weights such as 1.5g, 3g, 4g, 6g, 8g, 10g, etc., and when selecting the center of gravity position, it is desired depending on the target center of gravity position It is configured to obtain high and low trajectory.

The mounting position of the center-of-gravity position adjusting weight screw allows the club performance with different weights to be changed and finely corrected due to the synergistic effect of the weights, thereby obtaining a ball muscle having a high and low launch angle. In addition, when adjusting only the center of gravity position, which is the club performance, the center of gravity depth and the center of gravity position can be finely changed by arbitrarily changing the weight of the center of gravity position adjusting weight screw, for example, the center of gravity position is the optimal low center of gravity. By setting to, the hit ball is also easily raised.
In the present invention, the mounting position of the center-of-gravity position adjusting weight screw is illustrated and described with respect to the driver head, but the loft angle of the face surface of the head is large, for example, about 15 to 30 degrees in fairway wood. It can also be implemented in multiple clubs with different numbers.

  That is, when a ball is hit by a club, the position on the face surface that can transmit energy to the ball most effectively and efficiently is the point directly below the face surface from the center of gravity position in the head, or It is known to exist in the vicinity. In this device, paying attention to the fact that the driver head has a small loft angle, it is usually set at the geometrical center point of the face surface or slightly at the top part. Waywood and utility heads have a loft angle that increases with club count compared to the driver, so the best striking position on the face surface is larger in front of the head than the center of the face surface. In other words, since the head volume tends to decrease as the club number increases, the hit point position often deviates from the upper end of the face surface. When a club having such a head is used, the ball is hit at a portion below the hitting point position, so that the spin is applied to the ball more than expected and the ball rises too high and the flight distance is lost. There is a problem of lowering the hitting sound.

  In consideration of these problems, the weight screw for adjusting the center of gravity of the present invention is formed of a member having a specific gravity greater than that of the head body, and the best hitting point is obtained at the face surface position where the head center of gravity is directly below the face surface. It is set to the disposition position and weight distribution in the sole part.

  In the golf club head according to the present invention, a center of gravity position variable portion is provided in a body body formed integrally with the sole constituent material in a sole portion of the golf club head body, and weight adjusting screws mainly placing importance on the center of gravity position setting are provided. If you are a golfer who can easily match and adjust with golf players and can match optimally with golf players and have some hitting technology, you can attach weight adjustment screw members with different weights and move the center of gravity position to the optimal position, According to the desire of the golf player, the movement of the center of gravity of the club head can be displaced, and an arbitrary height trajectory, an extended height difference of a flight distance, and the like can be adjusted very simply.

It is a perspective view which shows the front part of the sole part which comprises the principal part of the golf club head concerning this invention. It is a perspective view which shows the unmounted state of the weight screw for gravity center position adjustment which shows the principal part of the golf club head concerning this invention. It is sectional drawing which notched a part of sole and crown which are some outer shell plates of the golf club head concerning this invention. It is sectional drawing at the time of mounting | wearing of the mounting | wearing order of the weight screw for gravity center position adjustment of the club head concerning this device. It is the front view seen from the face side which shows the attachment position of the center of gravity position adjustment weight screw of the club head concerning this device.

  An example of this device will be described based on the embodiment shown in FIGS. In the figure, a golf club head (1) according to the present invention is intended for a wood club type, and includes at least a striking face (2), a crown (3) and a sole (4), and a hollow integral outer shell wall. A center-of-gravity variable portion (5) having a reverse groove-shaped opening in the sole plate portion (4a) of the back sole portion close to the central lower side portion (3a) of the crown (3). ) Extending in the direction of the hitting face (2), and two center-of-gravity position adjusting weight screws (7), (8) having different weights vertically on the wall plate (6) of the center-of-gravity variable portion (5). It is configured to be exchangeable in a watertight manner through an O-ring (9), and the weight position of the center-of-gravity position adjusting weight screws (7), (8) can be displaced vertically to change the position of the center of gravity. .

  That is, it is close to the central lower side portion (3a) which is formed of the outer shell wall body, which includes at least the striking face (2), the crown (3), and the sole (4) and is formed of the outer shell wall body. A center-of-gravity variable portion (5) formed in a cross-sectional groove shape having an inverted groove-shaped opening is extended toward the hitting face (2) in the sole plate portion (4a) which is a portion to be formed. Each of the openings is connected to each plate of the outer shell wall (1a) formed integrally with the hollow and integrally formed by bending at the time of molding the head.

  The vertical wall plate (6) formed integrally with the center-of-gravity variable portion (5) is directed toward the inner surface of the top plate of the crown (3) in a direction orthogonal to the sole surface, and the loft angle of the striking face (2) The vertical wall plate (6) is watertight by fitting an O-ring (9) to the center of gravity position adjusting weight screw (7), (8). The golf club head (1) prevents the intrusion of moisture from the outside, the absorption and the penetration of fine dust powders, and the loosening of the screws at the same time.

  The structure of the center-of-gravity position adjusting weight screws (7) and (8) is a member having a large specific gravity relative to the golf club head (1) body, such as a titanium alloy, a tungsten material, a stainless material, various steel materials, and a copper alloy. For example, when mounting in a screw hole, a square groove screw range (not shown) provided separately in the groove receiving portion (12) engraved in the head peripheral surface portions (7a) and (8a) Tighten and fix. This golf club head (1) is provided with several weights such as 1.5 g, 3 g, 4 g, 6 g, 8 g, 10 g, and the like. Thus, the desired high and low trajectory is obtained.

  The mounting position of the center-of-gravity position adjusting weight screws (7) and (8) allows the club performance with different weights to be changed and finely corrected due to the synergistic effect of the weights, so that the ball muscles such as high and low launch angles can be obtained. It is done. In the adjustment of only the center of gravity position, which is the club performance characteristic of the present invention, the weight of the center of gravity position adjusting weight screws (7) and (8) can be arbitrarily changed, so that the center of gravity depth and the center of gravity position can be finely adjusted. For example, by setting the position of the center of gravity to an optimal low center of gravity, the hit ball can be easily raised. In the embodiment shown in the figure, the mounting positions of the center-of-gravity position adjusting weight screws (7) and (8) are illustrated and described with respect to the driver head in the present invention. The present invention can be applied to a plurality of clubs having a large loft angle, for example, fairway wood and having different counts of about 15 to 30 degrees.

  The center-of-gravity position adjusting weight screws (7) and (8) of the present invention are formed of a member having a specific gravity larger than that of the golf club head (1) main body, and the center of gravity of the golf club head (1) with respect to the striking face (2) surface. It is also possible to set the placement position and weight distribution in the sole (4) of the best hit point at the surface position directly below. In the figure, reference numerals (12) and (13) denote functional sole portions that are provided in the golf club head (1) body so as to be recessed from the surface of the sole (4) and assist the club function and the trajectory.

DESCRIPTION OF SYMBOLS 1 Golf club head 2 Hitting face 3 Crown 3a Center lower side part 4 Sole 4a Sole plate part 5 Center of gravity variable part 6 Vertical wall plate 7 Center of gravity position adjustment weight screw 7a Head circumference surface part 8 Center of gravity position adjustment weight screw 8a Head Circumferential surface 9 О ring 10 Screw hole 11 Screw hole 12 Function sole part 13 Function sole part

Claims (3)

  A golf club head is intended for a wood-shaped head, and is composed of an outer shell wall body that is formed integrally with a hollow including at least a face, a crown, and a sole, and has a back sole portion close to a central lower side portion of the crown. In the sole plate portion, a center-of-cross-section variable center of gravity having an inverted groove-shaped opening is extended in the face direction, and two center of gravity positions with different weights are adjusted vertically on the vertical wall plate of the center of gravity variable section. The weight screw is configured to be watertightly exchangeable via an O-ring, and the weight position of the center-of-gravity position adjusting weight screw can be displaced up and down to change the position of the center of gravity of the golf club head. Golf club head. The center-of-gravity variable portion is formed by extending, in the face direction, a cross-section groove-type center-of-gravity variable portion having a reverse groove-shaped opening on the sole plate portion of the back sole portion close to the central lower side portion. Two center of gravity position adjustment weight screws with different weights can be exchanged in a watertight manner through the O-ring on the vertical wall plate, and the weight position of the mounting adjustment weight screw is displaced vertically. The golf club head according to claim 1, wherein the position is changeable.   The center-of-gravity varying portion is formed by extending, in the face direction, a center-of-gravity varying portion formed in a cross-sectional groove shape having an inverted groove-shaped opening on a sole plate portion, which is a portion close to the lower central portion of the round. The golf club according to claim 1 or 2, wherein the connection of each opening portion is formed by bending and bending the respective plates of the outer shell wall body formed integrally with the hollow when the head is formed. Club head.

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