KR20110013734A - Golf putter capable of adjusting lie angle and shaft length - Google Patents

Abstract

PURPOSE: A golf putter is provided, which can be adjusted to the physical condition and hitting habits of individual golfers by controlling the length of a shaft and lie angle of a putter. CONSTITUTION: A golf putter comprises: a head(10); a shaft(30) connected to the head; an angle control part(40) controlling the angle formed by the head and shaft; and a length control part(50) controlling the length of the shaft. The angle control part includes: a pivot point axis which is prepared in the upper side of the head and in which a shaft is pivotally connected; and a fixing unit which fixes the shaft at a predetermined angle.

Description

Golf putter capable of adjusting lie angle and shaft length

The present invention relates to a golf putter, and more specifically, because it is possible to adjust the lie angle of the putter and the length of the shaft can be optimized to fit the physical conditions and hitting habits of the golfer, and the left and right sides of the head All can be used for hitting, and by making the loft angle larger than the conventional head, you can freely use chip putting, long putting, medium putting and short putting. It can adjust the weight of the head. It relates to a golf putter that can measure whether or not to achieve.

In general, golf clubs are divided into wood, iron, and putter, among which the putter is the club used to finally put the golf ball into the hole cup.

Unlike iron clubs, putters have a loft angle of 3 to 5 degrees because the golf ball cannot be rolled to the desired position when the golf ball floats, and the hitting surface of the head does not catch the backspin when putting There is no formation, and the shaft of the putter is formed such that the shaft is closer to the vertical than the other clubs with respect to the head so that the eye is positioned on the putting line without the body of the striking person bent too forward when putting.

The putter has such a basic structure, and the golfer learns the putting technique by repeating a number of hitting exercises based on the basic putting technique.

On the other hand, because each golfer is different in height, weight, arm length, leg length and the like, the golf ball does not roll in the same direction and the same strength. Many golfers also have batting habits they do not know. That is, golfers have their own habits, such as holding the putter short and putting, or holding the putter long and putting, bending and putting back or straightening and putting the waist.

However, commercially available putters only have a standard structure and are not optimized for each golfer. Therefore, it is very helpful to improve the golf performance if the putter having a standard structure can be adjusted to fit the golfer's physical condition and hitting habits.

On the other hand, the putter generally has a structure in which the golf ball is hit only on one side of the head. However, a putter capable of only putting in one direction, for example, has a problem in that it is very difficult to use when left putting is difficult in an inclined place or a bunker jaw.

In addition, as described above, a loft angle of 3 degrees to 5 degrees is formed in the putter, and it is difficult to vary the shot distance with such a small loft angle.

Furthermore, the state of the green varies depending on the grass variety, moisture, etc., where the green is fast, that is, the golf ball rolls quickly on the green, and the green is slow, that is, the golf ball rolls slowly on the green. In each of these cases it will be helpful to putt if the best putter can be used or if the state of the putter can be made optimal.

In addition, the head on the green is most preferably hitting the golf ball in a state parallel to the putting surface. Therefore, it would be very effective for putting if the head is equipped with a device capable of measuring whether the head is level.

An object of the present invention is to provide a golf putter that can be adjusted to fit the golfer's physical conditions and hitting habits because it can adjust the lie angle of the putter and the length of the shaft.

Still another object of the present invention is to provide a golf putter that can be used for hitting both the left and right sides of the head.

Another object of the present invention is to provide a golf putter that can freely use chip putting, long distance putting, medium distance putting, short distance putting according to the hitting position because the loft angle is larger than the conventional head.

Another object of the present invention to provide a golf putter that can adjust the weight of the head.

Still another object of the present invention is to provide a golf putter capable of measuring whether the head is parallel to the putting surface.

Golf putter according to a preferred embodiment of the present invention to achieve the above object, the head hitting the golf ball; A shaft selectively pivotally connected to the head; And an angle adjusting unit for adjusting an angle formed by the head and the shaft.

Golf putter according to another preferred embodiment of the present invention, the head for hitting the golf ball; A shaft connected to the head; It includes; and a length adjusting unit for adjusting the length of the shaft.

Golf putter according to another preferred embodiment of the present invention, the angle formed by the left side and the vertical line and the angle formed by the right side and the vertical line to hit the golf ball by using the left, right side of the head.

Preferably, the golf putter; length adjustment portion for adjusting the length of the shaft; includes.

Preferably, the golf putter includes an angle adjustment unit for adjusting the angle between the head and the shaft, wherein the shaft is selectively rotatably connected to the head.

Preferably, the golf putter is equal to the angle formed by the left side and the vertical line and the angle formed by the right side and the vertical line to hit the golf ball by using the left and right sides of the head.

More preferably, the angle adjusting portion, provided on the upper surface of the head, the pivot center shaft is rotatably connected; And fixing means for fixing the shaft at a predetermined angle after the shaft is rotated.

More preferably, the fixing means, the fixing piece is provided on the upper side of the rotational central axis, the shaft is inserted, the first uneven portion formed on at least a portion of the lower surface; A fixing nut installed on an upper side of the fixing piece, and having a shaft inserted therein, the fixing nut having a screw thread formed on the inner circumferential surface thereof, the screw thread being formed on the outer circumferential surface of the shaft; And a protruding portion provided on an upper surface of the head and having a second uneven portion formed to match the first uneven portion, wherein the first and second uneven portions are engaged with each other when the fixed piece is pressed by rotating the fixing nut. Is fixed to.

More preferably, the shaft comprises: a first shaft connected with the head; And a second shaft connected to the grip, wherein the length adjusting part includes: an insertion groove formed on one of the first shaft and the second shaft and having a thread formed on an inner circumferential surface thereof; An insertion portion formed on the other one of the first shaft and the second shaft, the screw thread being coupled to the thread of the insertion groove, formed on an outer circumferential surface thereof, and inserted into the insertion groove to couple the first and second shafts; And a fastening part for preventing the second shaft from being rotated with respect to the first shaft.

Here, the golf putter, the weight adjusting hole formed in the head; And a weight adjusting member inserted into and fixed in the weight adjusting hole, wherein the weight adjusting member includes a plurality of sets having different weights, and a weight adjusting member having a predetermined weight among the sets according to a fast and slow state of green. It is preferable that the member is fixed to the weight adjusting hole.

In addition, the golf putter, the weight adjustment hole formed in a long hole shape along the longitudinal direction of the head; And a weight adjusting member fixed to any one portion of the weight adjusting hole having a long hole shape.

In addition, the golf putter, a plurality of weight adjustment holes formed at predetermined intervals along the longitudinal direction of the head; And a weight adjusting member fixed to at least one of the plurality of weight adjusting holes.

Here, the golf putter preferably includes a level gauge detachably mounted to the head to measure whether the head is horizontal.

Golf putter according to the present invention has the following effects.

First, it is possible to adjust the lie angle of the putter and the length of the shaft can be optimized to fit the golfer's physical conditions and hitting habits.

Second, both left and right sides of the head can be used for hitting.

Third, since the loft angle is larger than that of the conventional head, the chip putting, the long putting, the medium putting and the short putting can be freely used according to the hitting position.

Fourth, the weight of the head can be adjusted.

Fifth, it can be measured whether the head is parallel to the putting surface.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be water and variations.

1 is a perspective view showing a part of a golf putter according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a head of the golf putter.

Referring to the drawings, the golf putter 100 is the head 10, the shaft 30 connected to the head 10, and the angle adjusting unit 40 for adjusting the angle formed by the head 10 and the shaft 30 And, length control unit 50 for adjusting the length of the shaft 30 includes. The present invention adjusts the angle formed by the head 10 and the shaft 30 by using the angle adjuster 40 (hereinafter, referred to as a 'lie angle') and the shaft 30 by using the length adjuster 50. The length of the shaft 30 can be optimized according to the physical characteristics and the hitting habits of the golfer because it can adjust the length of the. In addition, since the left and right side surfaces 11a and 11b are inclined at the same angle θ, both of the left and right side surfaces 11a and 11b can be used for hitting.

Head 10 is the portion that hits the golf ball. As shown in FIG. 2, the left and right side surfaces 11a and 11b of the head 10 are formed flat so as to strike the golf ball. Incidentally, the angles (θ, hereinafter referred to as loft angles) in which the left and right side surfaces 11a and 11b are inclined with respect to the vertical line are the same. If both side surfaces 11a and 11b of the head 10 are formed flat and the loft angles are the same, both left and right putting are possible. When viewed from the back of the golf ball, left putting means hitting the golf ball from the left side of the golf ball and right putting means hitting the golf ball from the right side of the golf ball.

Preferably, the loft angle θ is 6 degrees or more and 10 degrees or less. Compared to the conventional golf putter having a loft angle of 3 degrees to 5 degrees, the golf putter 100 according to the present invention has a larger loft angle than the conventional golf putter according to the hitting position, chip putting, long distance putting, medium distance putting, Short putts can be used freely. That is, as shown in FIG. 3, when the golf ball 1 is to be sent at a short distance, the left surface 11a is perpendicular to the ground by setting the golf ball 1 at the position of (C ′ + α). When the golf ball 1 is to be sent at a medium distance and the golf ball 1 is to be sent in the state, the left surface 11a is set to the vertical line and the loft angle θ by setting the golf ball 1 at the position of (A ′ ± α). ) And the golf ball 1 to be sent in a long distance, the left side (11a) by setting the golf ball (1) at the position of (B'-α) loft angle ( The blow is made at a state more inclined than θ), for example, θ1 = 20 degrees. Α is a distance-sensing correction value, when the golfer strikes at the selected position (A, B, C) of the putter head 10, the putting from the standard position (A ', B', C ') of the golf ball 1 It is the distance to be corrected as the distance is long and short.

Since the loft angle θ is larger than a conventional putter, the maximum angle formed by the side surfaces 11a and 11b with the vertical line is also increased. 4 is a diagram for calculating the maximum angle formed by the left surface 11a with the vertical line. The maximum angle is formed when the lower end of the right side surface 11b meets the ground.

이다.

to be.

Where r is the radius of the golf ball, D is the width of the bottom of the head 10, and θ 'is the angle between the tangent and the vertical line at the point where the left face 11a and the golf ball 1 meet. Since r = 21.5 mm, the equation is as follows.

For example, if D = 32mm

Θ '= 23 ° satisfying the above formula,

Since θ '' = θ '+ 10 °, θ' '= 33 °.

As such, when the left surface 11a strikes the golf ball 1, the angle θ '' formed between the vertical line and the left surface 11a is 33 °, so that the putter 100 has a longer distance than the conventional putter. It is very advantageous and can be used as a putter on edge and apron.

On the other hand, the putter 100 according to the present invention may adjust the weight of the head 10. As shown in FIG. 5, the head 10 includes a weight adjusting hole 13 formed at a predetermined depth and a weight adjusting member inserted into and fixed to the hole 13. As shown in Figures 6a to 6c, the weight adjusting members (15, 16, 17) is provided with a plurality of sets having different weights.

The hole 13 has a depth through which the weight adjusting members 15, 16 and 17 can be completely inserted, and a thread 14 is formed on the inner circumferential surface thereof. The weight adjusting members 15, 16 and 17 are formed on the outer circumferential surface of the threads 15a, 16a and 17a to be mated with the threads 14. The weight adjusting members 15, 16 and 17 are inserted into the holes 13 and screwed together.

According to the fast and slow state of the green, weight adjusting members 15, 16 and 17 having a suitable weight among the set are installed in the hole 13. That is, when the golf ball 1 moves quickly on the green, that is, when the green is fast, a weight adjusting member 15 having a small weight, for example, a weight of 10 g is installed in the hole 13, and the green is slow. In other words, when the golf ball 1 moves slowly on the green, a weight adjusting member 17 having a large weight, for example, a weight of 50 g is installed in the hole 13, and when the green is an average speed, the average A weight adjusting member 16 having a weight is installed in the hole 13.

Preferably, the golf putter 100 includes a level gauge 18 for measuring whether the head 10 is horizontal. Level gauge 18 is a device for measuring the horizontal level using air bubbles, which are conventional. Leveler 18 is installed on the upper surface of the head 10, it is preferable to be detachably installed. This is because golf regulations prohibit installing attachments to the head 10 during a game. If at least a portion of the level gauge 18 is made of a magnet, the head 10 may be detachably installed.

The shaft 30 includes a first shaft 31 connected to the head 10 and a second shaft 35 connected to the grip. The first shaft 31 is rotatably mounted to the head 10. The first shaft 31 and the second shaft 35 is screwed, the overall length can be adjusted. The first and second shafts 31 and 35 will be further described below.

The angle adjuster 40 adjusts the angle formed by the first shaft 31 and the head 10, that is, the lie angle. As shown in FIG. 2 and FIG. 7, the angle adjuster 40 rotates the first shaft 31 and the pivot center 41 to which the first shaft 31 is rotatable, and rotates the first shaft 31 at a predetermined angle. Fastening means for fixing.

The pivot center shaft 41 is installed through the support 42. The lower end of the first shaft 31 is rotatably installed on the pivot center shaft 41.

The fixing means includes a fixing piece 43 through which the first shaft 31 penetrates, a fixing nut 44 installed on the first shaft 31 to press and fix the fixing piece 43, and a fixing piece 43. And a projection 45 for cooperating with) to fix the first shaft 31 at a predetermined angle.

The fixed piece 43 is provided above the rotational central axis 41. The fixing piece 43 has a through hole into which the first shaft 31 is inserted, and a first uneven portion 43a formed in at least a portion of the lower surface thereof. It is preferable that the first uneven portion 43a is formed along both edges of the fixing piece 43. The first uneven portion 43a mates with the second uneven portion 45a of the protrusion 45, which will be described below.

The fixing nut 44 is attached to the first shaft 31 above the fixing piece 43. On the inner circumferential surface of the fixing nut 44, a thread 44a is formed to mate with the thread 32 formed on the outer circumferential surface of the first shaft 31. As shown in FIG. Therefore, when the fixing nut 44 is rotated, the fixing nut 44 presses the fixing piece 43 by the screwing of the threads 32 and 44a. The first and second uneven portions 43a and 45a are strongly engaged by the pressing, so that the fixing piece 43 is fixed at a predetermined angle.

Protrusions 45 are provided on both sides of the support 42 in the upper surface of the head 10, respectively. The protrusion 45 includes a jaw 46 formed at an upper end thereof, and a second uneven portion 45a formed at a horizontal portion 46a of the jaw 46.

The jaw 46 prevents the fixing piece 43 from swinging from side to side. The second uneven portion 45a mates with the first uneven portion 43a and is preferably formed long along the upper end of the protrusion 45.

Preferably, at least one of the protrusions 45 on both sides is provided with an angle display unit 47 for displaying an angle. The angle display 47 allows the golfer to know the lie angle.

As shown in FIGS. 8A and 8B, the first shaft 31 is rotated by α using the angle adjuster 40 while maintaining the angle β formed by the second shaft 35 with the ground. The head 10 is parallel to the ground. In addition, as shown in Figure 9a and 9b, by using the angle adjuster 40 to rotate the first shaft 31 by the r angle so that the head 10 and the ground is parallel.

The length adjusting part 50 includes an insertion groove (51 in FIG. 10) formed in the first shaft 31, an insertion part 55 formed in the lower end of the second shaft 35, and a second shaft 35. 1 includes a fastening to prevent rotation about the shaft 31.

The insertion part 55 is inserted into the insertion groove 51. The insertion groove 51 has a depth through which the insertion portion 55 can be fully inserted, and a thread 51a is formed on the inner circumferential surface thereof.

The insertion part 55 is provided with the screw thread 55a mating with the said screw thread 51a. The length of the shaft 30 can be adjusted by adjusting the depth at which the insertion part 55 is inserted into the insertion groove 51.

The fastening portion prevents the first shaft 31 and the second shaft 35 from rotating relatively. Preferably, the fastening part includes a taper 57 formed at an upper end of the first shaft 31 and a fastening nut 58 fastened to the taper 57.

A plurality of taper 57 is installed around the inlet of the insertion groove 51 at a predetermined angle. The thickness and width of the taper 57 increases from the top to the bottom. A thread 57a is formed on the inner surface of the taper 57 to form a thread 55a, and a thread 57b is formed on the outer surface of the taper 57 to form a thread 58a of the fastening nut 58. do.

The fastening nut 58 is inserted into the insertion groove 51, and then screwed into the thread 57b so that the taper 57 presses and fixes the insertion portion 55. As described above, since the thickness of the taper 57 increases from the upper end to the lower end, the taper 57 strongly presses and fixes the insertion part 55 when the fastening nut 58 is rotated and moved downward. It is possible to prevent the first and second shafts 31 and 35 from rotating relatively.

In the above description, although the insertion groove 51 is formed in the first shaft 31 and the insertion portion 55 is formed in the second shaft 35 and illustrated in the drawing, the insertion groove is formed in the second shaft and the insertion portion It may be formed in the first shaft. This will be apparent to those skilled in the art with reference to the description and drawings herein, so a detailed description thereof will be omitted.

On the other hand, Figure 11 is an attempt to show the assembly tool used in the golf putter according to the present invention. The assembly tool 70 includes a wrench portion 71 for rotating the fastening nut 58 and the fixing nut 44, and a driver portion 75 for rotating the weight adjusting members 15, 16, 17. ). The wrench unit 71 may be provided at one end of the assembly tool 70 and the driver unit 75 may be provided at the other end of the assembly tool 70.

Figure 12a is a view showing a golf putter according to a second embodiment of the present invention, Figure 12b is a cross-sectional view showing a weight adjusting hole formed in the head of the golf putter, and the weight adjusting member installed in the weight adjusting hole. In FIGS. 12A and 12B, the same elements as those in FIGS. 1 to 11 denote the same elements.

The golf putter 200 has a head 10a, a shaft 30 connected to the head 10a, an angle adjuster 40 for adjusting an angle formed between the head 10 and the shaft 30, and a shaft ( It includes a length adjusting unit 50 for adjusting the length of 30). Since the shaft 30, the angle adjuster 40, and the length adjuster 50 are the same as the shaft 30, the angle adjuster 40, and the length adjuster 50 of the first embodiment, the description thereof is omitted here. Shall be.

The head 10a has a long hole-shaped weight adjusting hole 13a formed along the longitudinal direction. The weight adjusting member 19 is installed in the hole 13a. The weight adjusting member 19 is composed of a bolt and a nut, and the bolt is inserted into the hole 13a and then fixed using the nut. The weight of each part of the head (10a) is different depending on the position where the weight adjusting member (19) is installed, the weight adjusting member (19) at an optimal position among the holes (13a) of the long hole according to the hit habits and physical conditions of the golfer ) Can be fixed.

13 is a view showing a golf putter according to a third embodiment of the present invention.

The golf putter 300 includes a head 10b, a shaft 30 connected to the head 10b, an angle adjuster 40 for adjusting an angle between the head 10 and the shaft 30, and a shaft ( It includes a length adjusting unit 50 for adjusting the length of 30). Since the shaft 30, the angle adjuster 40, and the length adjuster 50 are the same as the shaft 30, the angle adjuster 40, and the length adjuster 50 of the first and second embodiments, the description thereof will be omitted herein. It will be omitted.

The head 10b has a plurality of weight adjusting holes 13b formed at predetermined intervals along the longitudinal direction. Weight adjusting members 15, 16 and 17 are installed in the holes 13b, and the weight adjusting members 15 and 16 and 17 are provided in two or more holes 13b among the plurality of holes 13b. It may be installed.

The weight of each part of the head 10b varies according to the position where the weight adjusting members 15, 16, 17 are installed, and the head (according to the weight and the number of the weight adjusting members 15, 16, 17). The weight of 10b) will vary. Therefore, it is possible to optimize the golf putter 300 according to the hitting habits and physical conditions of the golfer.

1 is a perspective view showing a part of a golf putter according to a first embodiment of the present invention.

2 is a cross-sectional view showing the head of the golf putter of FIG.

3 is a view showing a hitting method according to the shot distance.

4 is a view showing a maximum angle of the head hitting the golf ball in the golf putter of FIG.

5 is a cross-sectional view showing a weight adjusting hole formed in the head of the golf putter of FIG.

6A to 6C are views showing a weight adjusting member inserted into the weight adjusting hole of FIG. 9, respectively.

7 is a perspective view showing an angle adjusting unit provided in the golf putter of FIG.

8a to 9b is a view showing that the head is level with the ground using the angle adjuster.

10 is an exploded perspective view showing a length adjusting part provided in the golf putter of FIG.

Figure 11 is a perspective view showing the assembly tool used for the golf putter of Figure 1;

12A is a view showing a golf putter according to a second embodiment of the present invention.

12B is a cross-sectional view illustrating a weight adjusting hole formed in the head of the golf putter of FIG. 12A and a weight adjusting member installed in the weight adjusting hole.

13 is a view showing a golf putter according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10, 10a, 10b: head 30: shaft

31: first shaft 35: second shaft

40: angle adjuster 50: length adjuster

51: insertion groove 55: insertion portion

70: assembly tool

100, 100a, 100b: golf putter

Claims (13)

A head hitting a golf ball; A shaft selectively pivotally connected to the head; And Golf putter, characterized in that it comprises; an angle adjuster for adjusting the angle between the head and the shaft. A head hitting a golf ball; A shaft connected to the head; And A golf putter comprising a; length adjusting portion for adjusting the length of the shaft. Golf putter, characterized in that the angle formed by the left side and the vertical line and the angle formed by the right side and the vertical line so that the golf ball can be hit by using the left and right sides of the head. The method according to claim 1 or 3, A golf putter comprising a; length adjusting portion for adjusting the length of the shaft. The method according to claim 2 or 3, An angle adjuster for adjusting the angle between the head and the shaft; including the shaft is a golf putter, characterized in that the pivot is selectively connected to the head. The method according to claim 1 or 2, Golf putter, characterized in that the angle formed by the left side and the vertical line and the angle formed by the right side and the vertical line so that the golf ball can be hit by using the left and right sides of the head. The method of claim 5, Angle adjustment part, A rotational center shaft provided on an upper surface of the head and rotatably connected to the shaft; And And a fixing means for fixing the shaft at a predetermined angle after the shaft has been rotated. The method of claim 7, wherein The fixing means, A fixing piece installed on an upper side of the pivot center axis, the shaft being inserted therein, and having a first uneven portion formed on at least a portion of the lower surface thereof; A fixing nut installed on an upper side of the fixing piece, and having a shaft inserted therein, the fixing nut having a screw thread formed on the inner circumferential surface thereof, the screw thread being formed on the outer circumferential surface of the shaft; And A protrusion provided on an upper surface of the head and having a second uneven portion formed thereinto match the first uneven portion; and pressing the fixing piece by rotating the fixing nut to engage the first and second uneven portions so that the shaft is at a predetermined angle. Golf putter, characterized in that fixed. The method of claim 4, wherein The shaft, A first shaft connected to the head; And A second shaft connected with the grip; Length adjustment part, An insertion groove formed in one of the first shaft and the second shaft and having a thread formed on an inner circumferential surface thereof; An insertion portion formed on the other one of the first shaft and the second shaft, the screw thread being coupled to the thread of the insertion groove, formed on an outer circumferential surface thereof, and inserted into the insertion groove to couple the first and second shafts; And And a fastening portion for preventing the second shaft from being rotated with respect to the first shaft. The method according to any one of claims 1 to 3, A weight adjusting hole formed in the head; And And a weight adjusting member inserted into and fixed to the weight adjusting hole. The weight adjusting member is provided with a plurality of sets having different weights, Golf putter, characterized in that the weight adjustment member having a predetermined weight of the set is fixed to the weight adjustment hole in accordance with the fast and slow state of the green. The method according to any one of claims 1 to 3, A weight adjusting hole formed in a long hole shape along a longitudinal direction of the head; And And a weight adjusting member fixed to any one portion of the weight adjusting hole having a long hole shape. The method according to any one of claims 1 to 3, A plurality of weight adjusting holes formed at predetermined intervals along the longitudinal direction of the head; And And a weight adjustment member fixed to at least one of the plurality of weight adjustment holes. The method according to any one of claims 1 to 3, Golf putter, characterized in that it comprises a level gauge detachably installed on the head to measure the horizontal level of the head.

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