JPH0683052U - Iron club - Google Patents

Abstract

(57) [Summary] [Objective] The present invention aims to stabilize the directionality of the ball when shooting at an angle other than the regular lie angle of the iron club. [Structure] Iron Club 10 Club Face 15
A ballistic direction display line 21 that indicates the direction of the ball when a shot is made with a lie angle β other than the regular lie angle of the iron club 10 is formed above. At the time of a shot, the player rotates the shaft 11 by an angle γ so that the line 21 and the flight line coincide with each other. The line 21 corresponds to a line L perpendicular to the ground line G drawn on the club face 15 when the shaft 11 is set up on the ground with the lie angle β.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an iron club (also referred to as an iron) used in a golf game, and particularly when a player changes the lie angle of the iron club to make a shot, the player is informed of the launch direction of the shot ball. Related to Iron Club.

[0002]

[Prior art]

 Generally, irons are divided into 9 wedges from 1st iron (loft angle example: 18 °) to 9th iron (loft angle example: 47 °) and various wedges according to the loft angle (angle formed by face and shaft). The club with a higher loft (that is, the club with a smaller loft angle) has a longer shaft, and the trajectory of the hit ball is lower and the distance can be increased.

On the other hand, a lofting club has a shorter shaft, a higher trajectory, and a shorter distance, but a backspin is more likely to be applied to stop the club. The wedge has a larger loft angle and heavier weight than the 9th iron, and is composed of pitching wedges and sand wedges. It is a general practice for a player to select an appropriate iron club from a plurality of irons configured as described above, depending on the situation in which the ball is stopped, the distance to the cup, etc. It is that. Incidentally, the above-mentioned stopped state and position of the sphere are called lie in this field, and expressions such as “bad lie” or “difficult lie” may be used.

By the way, the above-mentioned lie has another meaning, and refers to the angle formed by the shaft and the ground when the club is placed on the ground very naturally. This is generally called the lie angle or lie angle, and the driver's lie angle is small, and in the 1st to 9th irons, the shaft is the shortest, and the 9th iron is the largest. Get closer. Players usually take their stances at an angle (called the regular lie angle) that is created when the club's sole is placed exactly on the ground.

[0005]

[Problems to be solved by the device]

 However, in actual play, it may be necessary to hit the ball with a lie angle different from the regular lie angle depending on the situation, as represented by a toe-up or toe-down shot. . In addition, depending on the situation, at the time of addressing, the height of the grip is intentionally changed and held (hand-up, hand-down), or the distance between the ball and both toes is changed, and the actual loft of the club is changed. May change, and in this case as well, the lie angle will change.

[0006] For example, when the club head is pulled toward the front side so that the lie angle is larger than the regular angle and the shot is performed (however, the shaft is not rotated), the club face at this time is the address position. In the case of the normal lie angle, the direction of the shot ball is outside the flight ball line (the tangential direction from the hitting point in the swing), and the slice or push-out inclination becomes Become. It should be noted that there is a toe-down shot similar to this.

Therefore, in reality, when such a shot is taken, the trajectory tendency thereof is calculated in advance to make an open stance, or the shaft is rotated in advance to make a shut face state (a state where the club face is covered), The direction of the shot sphere is adjusted. However, such irregular shots are basically uncertain because the club face is not at right angles to the flight line, and the direction of the shot ball depends largely on the player's intuition. I have to call it a shot.

The present invention has been made in view of the above problems, and it is possible to stabilize the directionality of the ball when the shot is made at an angle other than the regular lie angle of the iron club. The aim is to provide a good iron club.

[0009]

[Means for Solving the Problems]

 According to the present invention to achieve the above object, in an iron club for a golf game, which has a shaft and an iron head fixed to the tip of the shaft, a regular iron club on the club face of the iron head is provided. The present invention is characterized in that a display means is formed to indicate the launch direction of the ball seen by the player when a shot is made with a predetermined lie angle other than the lie angle.

[0010]

[Action]

 Since a display means is formed on the club face of the iron head that indicates the launch direction of the ball as seen by the player when a shot is made with a predetermined lie angle other than the regular lie angle of this iron club. As a guide, the shaft can be rotated and addressed so that the flying ball line and the display means coincide, and the directionality of the shot ball can be stabilized.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of an iron club provided with a display means according to the present invention on a club face. In the figure, 10 is an iron club, 11 is a shaft, 12 is an iron head (hereinafter referred to as head 12), and 13 is a hosel for fixing the head 12 to the shaft 11.

According to the present embodiment, the iron club 10 has a shaft 11 having a length (depending on the height of the user) of the same level as that of a normal driver (not shown) due to a special usage described later. Grips 14a and 14b made of leather, rubber or the like are provided at the end of the shaft 11 and the respective parts below the end.

FIG. 2 is an enlarged front view of the portion of the head 12 shown in FIG. 1, and FIG. 3 is a side view of the head 12 as seen from the direction of arrow A in FIG. As is clear from these figures, in this embodiment, the head 12 has a loft angle θ corresponding to a general pitching wedge or a sand wedge.

A large number of scoring lines 16 for applying backspin to the ball are formed on the club face 15 which is a ball striking surface of the head 1. Each scoring line 16 is formed so as to be substantially parallel to the ground G when the sole (bottom surface) 17 of the head 12 is grounded to the ground G very naturally. The angle α formed by the axis B and the ground G is the regular lie angle of the iron club 10. In this embodiment, this lie angle is set to 60 °. Regarding the other names of the head 12, the tip of the head 12 is called a toe 18, the connecting portion with the hosel 13 is called a socket 19, and the portion continuing from the socket 19 to the sole 17 is called a heel 20.

According to the present embodiment, on the club face 15 of the head 12 configured as described above, one ballistic direction is obliquely upward from the boundary between the toe 18 and the sole 17. A display line 21 (hereinafter abbreviated as line) is engraved.

This line 21 displays the launching direction of the ball seen from the player side when the ball is irregularly shot with one lie angle different from the illustrated normal lie angle α. Therefore, for example, when the lie angle is set to an angle β larger than the regular lie angle α, the line 21 actually causes the shaft 11 to be horizontal with the lie angle β as shown in FIG. 4 (A). This is equivalent to the line L on the club face 15 which perpendicularly intersects the ground surface line G at this time when it is standing on the ground. In this case, the shaft is moved in the R direction (FIG. 8) in order to match the flight line direction indicated by the line L with the tangential direction D of the swing trajectory line C (see FIG. 8) as the shaft 11 is pulled toward the front side. Rotate. Therefore, when the club face is viewed from above, the angle of the sole portion in contact with the ground (that is, the angle of the scoring line 16) changes from 0 ° to γ (rotational phase difference angle), as shown in FIG. 4 (B). .

Hereinafter, two usage examples of the present iron club 10 will be specifically described by taking a right-handed iron club as an example. FIG. 5 shows the address state of the player when the head 12 is grounded on the ground G with the regular lie angle α of the club 10 and shot, and has the loft angle as in this embodiment. The iron club 10 can be used in many cases in the case of approach shots such as pitch shots and pitch and runs in which a high ball is hit.

As described above, in the present embodiment, the length of the shaft 11 is a so-called long club having the same length as the driver (depending on the height of the user). Therefore, the player P uses the left hand to end the club as shown in the drawing. Grip the end of the grip 14a at the same time, and at the same time, lightly put the fist of the left hand on the chest or the groove of the body to fix it.

In addition, the right hand grips the grip 14b located below the grip 14a and addresses the ball T. The grounding state of the head 12 at this time corresponds to the so-called most stable state in which the sole 17 contacts the ground G with a regular lie angle shown in FIGS. 2 and 3.

In the takeback, with the left hand fixed as shown, the right hand is swung up like a pendulum with the fulcrum as a fulcrum, and the downswing is performed in this state without moving the fulcrum. Strike the ball T. This method is different from a normal swing in which both hands are hit close to each other, and does not take a big takeback. Therefore, it is not suitable as a shot to gain a distance by a full swing like a wood, but it is the most delicate for the player. It is said that in the half-swing, it is easy to control the take-back stroke, and (b) the center of rotation (pivot) does not move during the series of strokes from the take-back to the downswing. Due to the above two major reasons, it is possible to reduce the variation in the distance of the ball T to be shot, and it can be said that this is a very effective hitting method for a shot around the green.

Regarding the direction in which the ball T is launched at this time, since the ball T is hit in the state of the normal ray angle as described above, as shown in FIG. It is a tangential line D direction at the hitting point H, and is a direction perpendicular to each scoring line 16 (or line E) when viewed from above the head 12.

In FIG. 7, the club 10 is set up more than in the shot of FIG. 5, the distance between the toe of the player P and the ball T is shortened, and the ball T is impacted with a predetermined lie angle β larger than the regular lie angle α. This shows the address state at the time of hitting, and is a hitting method used when a shot that hits the ball T low without backspin is required, such as the running approach. Also in this batting method, the swing is basically the same as the previous one, and it is a pendulum type batting method of hitting the ball T while adjusting the takeback stroke with the left hand as the pivot and the right hand. In this case, the height of the fixed left hand is higher than that in FIG. 5).

However, the state of the head 12 at this time is that the heel 20 is lifted above the ground G as compared with the case of the normal lie angle, and therefore the rotational phase difference between the shaft 11 and the address of FIG. As long as the club face 15 is not moved (that is, the club 10 is directly moved to the front side along the line E in FIG. 6), the orientation of the club face 15 is as shown by the dashed line f in FIG.・ It will open to the outside of the angle (shown by the dotted line g). Therefore, in this state, if the ball swings down along the trajectory C and impacts, the ball T is hit outside the tangent D direction at the hitting point H (in the direction of the one-dot chain line F). The shot does not match the line (tangential D direction), making ball control difficult.

However, in the club 10 according to the present embodiment, the line 21 that clearly indicates the direction of the ball T that is launched as described above is used for a shot with a lie angle β different from the regular lie angle α. Since it is formed, the player P consciously rotates the shaft 11 in the direction of the arrow R so that the line 21 substantially overlaps with the swing trajectory line C (or the tangent line D), and addresses it. Hit the ball T (with the face down). As a result, when a downswing is performed along the trajectory C, the direction in which the ball T is launched and the direction of the tangent line D substantially coincide with each other, and an ideal shot along a so-called flight line can be performed. Since the club face 15 at this time is in a shut face state, the actual loft angle is smaller than that at the regular lie angle, and the trajectory of the ball T to be launched is low, which is a so-called running approach. It becomes a suitable shot.

Also in this batting method, like the shot at the time of the normal lie angle, (a) it is easy to control the takeback stroke, and (b) from the takeback to the downswing. Variations in the distance and direction of the shot ball T can be reduced for the two major reasons that the center of rotation (pivot) does not move in a series of strokes.

As described above, according to the present embodiment, by providing the line 21 on the club face 15, in addition to the normal lie angle α shot of the club 10 originally, a shot at a different lie angle β is performed. The direction of the ball T can be made uniform, and the ball control technology in the shut face, which is said to be the most difficult for so-called golfers, can be improved. In addition, since the line 21 is formed on the club face 15 of the long iron in this embodiment, the distance control in the half shot, which is difficult for the iron having the normal shaft length, in addition to the above-mentioned directionality. This makes it easier to provide clubs suitable for approach shots around the green.

The present invention has been described above by taking the long iron (pitching wedge) having a large shaft length as an example, but the line according to the present invention is not limited to this embodiment, and any ordinary line can be used. The same applies to iron clubs.

Further, the number of lines formed on the club face is not limited to the embodiment shown in the figure, and for example, the number may be increased to facilitate various lie angle shots with one club. May be. In this case, it is also preferable to clearly indicate which lie angle each line corresponds to, for example, by displaying the address and the ball line of the ball T at the end of each line.

Next, another embodiment of the iron club according to the present invention will be described with reference to FIGS. 9 to 11. 9 is a front view of this embodiment, FIG. 10 is a perspective view, and FIG. 11 is a side view seen from the front end direction of the club. The head 30 of the iron club according to this embodiment has a pendulum type line 21 at another lie angle on the tip end side of the edge 31 at the lower end of the face when shooting at the regular lie angle α. A straight edge 32 is formed which is in contact with the ground (horizontal plane) in parallel when the shot is taken in the direction of. The above-described ballistic direction indicating line 21 is marked substantially at a right angle to the straight edge 32. The edge portion 31 at the lower end of the face surface is formed in a substantially straight line so as to form an angle α with the shaft axis B, and a thick sole 33 is formed on the back surface side thereof. The bottom surface of the sole 33 is substantially flat, and is inclined forward and upward with respect to the ground (horizontal plane) at the ball striking position when shooting at the regular lie angle α. This has the effect that the head does not dig into the ground.

Further, in this embodiment, a thick portion 34 is also formed on the tip side of the head, and a substantially triangular flat surface 35 (FIG. 10) is formed on the back side of the linear edge portion 32 at the tip corner. Form. As shown in FIG. 11, the tip end flat surface 35 is a pendulum type shot in the direction of the line 21 with the linear edge portion 32 parallel to the ground surface (horizontal surface) G. It inclines upward by an angle δ with respect to G. As a result, it is possible to obtain the effect that the head does not dig into the ground when shot with the head tip. Other configurations and operational effects are similar to those of the embodiment shown in FIGS. 1 to 8.

[0031]

[Effect of device]

 As described above, according to the present invention, the directionality of the ball can be stabilized when the shot is made at an angle other than the normal lie angle of the iron club.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an entire iron club according to the present invention.

2 is a front view of the club head of the iron of FIG. 1. FIG.

3 is a side view of the club head as seen from the direction of arrow A of the head of FIG. 2. FIG.

FIG. 4 is a schematic diagram of a club head showing the relationship between the line formed on the club face of the present invention, the lie angle, and the rotational phase difference angle γ, and FIGS. FIG. 6A is a view of the head when viewed from the front and FIG.

FIG. 5 is a diagram showing an address state at a regular lie angle (α) using the iron club according to the present invention, in which (a) is a state in which the player is viewed from the front thereof,
FIG. 6B is a diagram showing the state seen from the front, and FIG. 7C is a diagram showing the state in which the address is enlarged.

FIG. 6 is a diagram showing a relationship between a club face state of the shot shown in FIG. 5 and a ball protruding direction.

FIG. 7 is a view showing an address state at a predetermined lie angle (β) using the iron club according to the present invention, (a) showing the player as seen from the front thereof,
FIG. 6B is a diagram showing the state seen from the front, and FIG. 7C is a diagram showing the state in which the address is enlarged.

FIG. 8 is a diagram showing a relationship between a club face state of the shot shown in FIG. 7 and a ball protruding direction.

FIG. 9 is a front view of an iron club according to another embodiment of the present invention.

FIG. 10 is a perspective view of the embodiment of FIG.

11 is a side view of the embodiment of FIG. 9 seen from the tip end side.

[Explanation of symbols]

 10 Iron club 11 Shaft 12 Club head 15 Club face 21 Ballistic direction display line D Flying ball G Ground (ground line) T Ball α Regular lie angle β Predetermined lie angle γ Rotation phase difference angle

Claims (4)

[Scope of utility model registration request] 1. An iron club for golf competition having a shaft and an iron head fixed to the tip of the shaft, wherein a predetermined lie angle other than a regular lie angle of the iron club is provided on a club face of the iron head. An iron club characterized in that display means is formed to show the launch direction of the ball as seen by the player when shooting with a lie angle. 2. The iron club according to claim 1, wherein the display means is a ballistic direction display line extending upward from the sole of the club. 3. The ballistic direction display line is a line on the club face that intersects with the ground line perpendicularly when the club shaft is set up on the horizontal ground with the predetermined lie angle. The iron club according to claim 2, wherein: 4. An iron club for a golf game having a shaft and an iron head fixed to the tip of the shaft, wherein a club face for shooting at a regular lie angle on the tip side of the sole portion of the iron head. An iron club characterized in that a straight edge inclined with respect to the lower edge is formed.