JP2571820Y2 - Golf practice ball transfer device and pedestal - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention comprises a ball transfer arm for receiving and transferring golf balls sent one by one from a ball automatic supply device and placing the balls on a tee standing on a play mat. The present invention relates to a golf practice ball transfer device provided with a pedestal for easily and reliably mounting and fixing it at a predetermined position on an edge of a mat, and a pedestal thereof.

[0002]

2. Description of the Related Art FIGS. 6 and 7 show an overall configuration of a conventional golf practice apparatus. Reference numeral 50 denotes a play mat on which a player stands and plays, and a tee 51 on which a golf ball is placed is erected at a predetermined position. Numeral 60 denotes an automatic ball feeding device which is fixed to the floor on which the training device is installed, adjacent to the play mat 50. The automatic ball feeder 60 moves the ball from the ball reservoir 61 through the ball feeder trough 62 to the sending part 63 at the end thereof to the base end side of the ball transfer arm 64 assembled in contact with the sending part 63. The ball is supplied one by one. The ball transfer arm 64 is pivotally supported at a position near the base end thereof by a horizontal support shaft 65, is rotatable in a vertical direction by a motor (not shown), and has a falling ball opening 66 at its front end. This ball transfer arm 64
Normally, a standing posture that does not interfere with the swing is taken as shown in FIG. Then, when a ball supply switch (not shown) is turned on, the motor is operated to rotate the ball transfer arm 64 downward and fall down, and one ball supplied to its base end side is It is configured so that it rolls on the arm, reaches the falling ball opening 66, and falls and is placed on the tee 51 located immediately below. After dropping, the ball transfer arm 64 is returned to the upright posture by the motor again. Reference numeral 70 denotes a ball detection sensor incorporated in the automatic ball supply device 60. In this case, infrared rays are emitted toward the ball on the tee 51 to detect the presence or absence of the infrared ray. When it is detected that there is no ball, a signal is sent to the operation control unit of the automatic ball supply device 60, a stopper (not shown) provided in the ball sending unit 63 is retracted for a short time, and one ball is transferred to the ball transfer arm. 64.

[0003]

In the above-mentioned conventional apparatus, the play mat 50 is repeatedly used during the intense swing operation.
When the set position of the ball is shifted from the set position of the automatic ball feeder 60, the position of the falling ball opening 66 of the ball transfer arm 64 attached to the automatic ball feeder 60 naturally becomes the position of the tee 51 on the play mat 50. The play mat 50 and the automatic ball feeder 60 are firmly fixed to the floor on which the practice device is installed, respectively. Extremely troublesome fixing work such as firm connection with use is required.
Also, since the ball detection sensor 70 is also assembled to the automatic ball supply device 60, when installing the practice device, the mounting direction of the ball detection sensor 70 is adjusted so as to face the tee 51 on the play mat 50. Work is required. However, since the play mat 50 is made of a flexible material such as rubber or plastic, the above-mentioned fixed positional relationship shifts with time as shown by the two-dot chain line in FIG. Inevitably, when replacing the consumable play mat 50 or tee 51, the installation direction of the ball detection sensor 70 is finely adjusted and the play mat 50 is firmly fixed each time. There was annoying work. In particular, the longer the beginner is, the longer the tee 51 is, so as to prevent the club from hitting the ball transfer arm 64 or the like during the swing and to feel depressed.
Is likely to shift with time. Therefore, an object of the present invention is to separate a ball transfer arm 64 that plays a role of transferring the balls sent one by one from the automatic ball supply device 60 toward the tee 51 from the automatic ball supply device 60 and become independent. By combining the apparatus with the apparatus and providing a pedestal for detachably and easily and securely attaching the apparatus to the edge of the play mat 50, the various disadvantages of the conventional golf practice apparatus can be almost eliminated. The present invention provides a golf practice ball transfer device and a pedestal thereof.

[0004]

In order to achieve the above-mentioned object, a golf practice ball transfer device according to the present invention is arranged such that golf balls delivered one by one from a ball automatic supply device are erected on a play mat 50. A device for transferring the ball onto the tee 51, which is rotatable up and down around the horizontal support shaft 5, and is downwardly moved by the weight of the delivery ball supplied to the rear end side which is always in the upright state. The ball transfer arm 1 is configured to rotate so as to fall down and bring the dropped ball portion 7 at the front end to a position immediately above the tee 51 and to transfer the ball toward the dropped ball portion 7; A configuration including an apparatus main body 2 on which the transfer arm 1 is mounted, and a pedestal 3 on which the apparatus main body 2 is placed and which is configured so that an edge of the play mat 50 can be detachably gripped by an attached gripping mechanism 4. age . The device body 2 may be provided with a ball sensor 12 for detecting the presence or absence of a golf ball on the tee 51. Further, the pedestal of the golf practice ball transfer device according to the present invention is rotatable up and down around the horizontal support shaft 5, and is rotated downward by the weight of the ball supplied from the automatic ball supply device so as to be in a horizontal position. The ball transfer arm 1 is provided with the ball drop arm 7 at the front end thereof at a position immediately above the tee 51 erected on the play mat 50 and the ball is transferred toward the ball drop ball section 7. 2 for fixing the main body portion of the golf practice ball transfer device having the structure assembled in 2 at a predetermined position of the play mat 50, and includes a pedestal main body 20 and an attachment portion for mounting the device main body 2. And a gripping mechanism 4 for connecting one end of the play mat 21 with a hinge 22 and gripping an edge of the play mat 50 sandwiched between the pedestal body 20 and the mounting portion 21. . And
A mounting plate 25 on which the apparatus main body 2 is mounted is mounted on the mounting portion 21 so as to be displaceable in the vertical and horizontal directions and in the front and rear directions, so that the position of the dropped ball portion 7 at the time of transferring the golf ball is determined. It is preferable to make fine adjustment in three-dimensional directions.

[0005]

A golf ball delivered one ball at a time from an automatic ball supply device is placed on a play mat 50 by a tee 51.
The device of the present invention for transferring the ball to the upper side is equipped with a ball transfer arm 1 which receives the transmitted ball, transfers the ball to the fallen ball portion 7 at the front end thereof, and drops the ball onto the tee 51, and assembles the device main body 2. By the gripping mechanism 4 provided on the pedestal 3 on which the main body 2 is placed, the play mat 50 can be easily and reliably installed and fixed at a predetermined position on the edge of the play mat 50. Therefore, in order to prevent the correct positional relationship between the falling ball opening of the ball transfer arm and the tee from shifting with time as in the conventional device, the ball automatic supply device and the play mat 50 are firmly fixed respectively. Eliminates troublesome work. The ball sensor 12 detects the presence or absence of a ball on the tee 51.
In order to correctly install the golf practice apparatus on the installation floor by incorporating the golf practice apparatus into the apparatus main body 2 instead of incorporating it in the automatic ball supply apparatus as in the prior art, the falling ball section 7 of the ball transfer arm 1 needs The apparatus main body 2 is moved to the play mat 50 as described above so as to face the ball delivery section of the supply apparatus.
, It is not necessary to adjust the setting direction of the ball sensor at all. Even after the golf practice device is installed and the intense swing practice is repeated, even if the initial positional relationship between the automatic ball feeding device and the play mat 50 is shifted, the positional relationship between the dropped ball portion 7 and the tee 51 Also, there is no possibility that the positional relationship between the ball sensor 12 and the tee 51 will be out of order. Further, by mounting a mounting plate 25 on which the apparatus main body 2 is mounted on the mounting plate 21 constituting the pedestal 3 so as to be displaceable in the vertical and horizontal directions and the front and rear directions, the position of the falling ball portion 7 and the tee 51 can be adjusted. Can be easily fine-tuned in three dimensions.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, in FIG. 5 as a plan view showing the installation state of the golf practice ball transfer device A of this embodiment, reference numeral 60 denotes an automatic ball supply device fixed at a predetermined position on the installation floor of the device. I have. A play mat 50 has a tee 51 erected at a predetermined position, and is placed on an installation floor of the apparatus adjacent to the automatic ball feeder 60. Then, the golf balls (hereinafter simply referred to as ball B) which are delivered one by one from the delivery portion 63 of the automatic ball supply device 60.
The main body of the ball transfer device has a configuration in which a gutter-shaped ball transfer arm 1 is attached to the device main body 2 for receiving and transferring the ball transfer arm onto the tee 51. The play mat 50 is held by the gripping mechanism 4.
Is detachably fixed at a predetermined position on the front edge of the front panel.

Next, the detailed configuration of the ball transfer device A will be described sequentially. As shown in FIG. 1, the ball transfer arm 1 formed by injection molding of a hard synthetic resin into an integral structure is then vertically moved around a horizontal support shaft 5 pivotally supporting a position near the end (right side in the figure). It is rotatably attached to the apparatus main body 2.
At the rear end side of the ball transfer arm 1, a weight portion 6 (see FIG. 2) having a substantially fan-shaped side surface is integrally formed, so that the ball transfer arm 1 operates when the ball B is not supplied. During standby, as shown by the solid line in FIG. 1, the front end is turned upright around the horizontal support shaft 5 with its front end side upward, so as not to disturb the swing operation. The horizontal support shaft 5 is provided in the vicinity of a key portion of the sector of the sector weight 6. The ball B supplied from the automatic ball supply device 60 is supplied to the horizontal support shaft 5 on the upper surface (the right side surface in FIGS. 1 and 2) of the standing ball transfer arm 1.
It is designed to collide with a more rearward position. At the front end of the ball transfer arm 1, a falling ball portion 7 formed in a short cylindrical shape is provided.

The apparatus main body 2 is made of a hard synthetic resin and is formed in a hollow block shape, and is provided with a groove-shaped recessed portion 8 in which the ball transfer arm 1 is loosely fitted so as to be rotatable up and down. The horizontal support shaft 5 is provided in the middle of the groove-shaped recess 8. A gutter-shaped guide path 9 that is inclined forward and downward is formed in a portion of the top surface of the device main body 2 behind the horizontal support shaft 5,
The ball B sent from the ball sending section 63 of the automatic ball feeding device 60 is transferred to the rear part of the ball transfer arm 1. Fixing projections 10 are provided on the left and right of the bottom of the apparatus main body 2, and long bolt holes 11 are provided respectively.

As shown in FIG. 1, an infrared irradiation type ball sensor 12 is mounted in the inner space of the apparatus main body 2. The infrared light emitted from the ball sensor 12 passes through a light transmitting window 13 provided on the front wall of the apparatus main body 2 and
The position where the ball B is placed on the tee 51 erected on the zero is irradiated to detect the presence or absence of the ball B. Reference numeral 14 denotes a connection cable for connecting the ball sensor 12 and an operation control unit (not shown) of the automatic ball supply device 60.

Next, as shown in FIGS. 2 and 3, the main body of the pedestal 3 has a rectangular plate shape, and its rear edge is bent upright to form a rear wall 20a. A configuration in which the mounting plate 21 which is opposed to the upper surface at an interval equal to or greater than the thickness of the play mat 50 and which serves as a mounting portion of the apparatus main body 2 is connected via a first hinge 22 at each rear edge. Have.
The front side of each of the pedestal body 20 and the mounting plate 21 (left side in the figure)
The nails a and b which bite into the front and back surfaces of the play mat 50 are protruded from the periphery of the play mat 50 so as to face each other. The lower pivot plate 23a of the second hinge 23 is fixed to the mounting plate 21 at a position closer to the front from the center thereof, with the hinge axis parallel to the rear edge of the mounting plate 21. A connecting pin 24 projects upward in the middle of the upper turning plate 23b. Further, a through hole is provided in the center of the rear edge of the mounting plate 21.

Reference numeral 25 denotes a mounting plate on which the apparatus main body 2 is mounted. On both left and right sides, elongated holes for inserting bolts 26, 26 inserted into the bolt holes 11, 11, respectively, of the apparatus main body 2 are provided. A locking nut is screwed to the lower end of the bolt 26.
In addition, a through hole is provided at a position forward from the center of the mounting plate 25,
The connecting pin 24 attached to the second hinge 23 is inserted through the through hole, and a nut is screwed on the upper end of the connecting pin 24 to connect the mounting plate 25 and the mounting plate 21 with pins. Therefore, the apparatus main body 2 can be moved back and forth on the mounting plate 25 and can be rotated left and right around the connecting pin 24. Further, an arc-shaped long hole 27 is provided in the center of the protruding portion where the mounting plate 25 protrudes rearward of the apparatus main body 2 in the left-right direction.

Reference numeral 28 denotes a falling ball portion 7 at the tip of the ball transfer arm 1 in a horizontal state, and a tee 5 on the play mat 50.
An adjustment screw for adjusting the positional relationship with the
And the through hole provided in the lower mounting plate 21 therethrough, and screwed into a nut 29 fixed to the mounting plate 21. A ratchet mechanism may be attached to the adjusting screw 28. Further, between the mounting plate 21 and the mounting plate 25, a leaf spring 30 having a substantially F-shape or a crushed S-shape is interposed in a state where the connection pin 24 is inserted into a through hole provided at one end thereof. Let me. Therefore, the mounting plate 25 can be tilted up and down with the insertion point of the adjusting screw 28 as a fulcrum, and the front side (the left side in the drawing) is urged by the leaf spring 30.

Next, a gripping mechanism 4 incorporated in the pedestal 3 and gripping a predetermined portion of the front edge of the play mat 50 between the pedestal main body 20 and the mounting plate 21 has the structure shown in FIGS. It has. That is, a substantially U-shaped movable hook 31 slidable a predetermined distance in the front-rear direction is attached to the center of the rear portion of the upper surface of the pedestal main body 20, and a nut 32 fixed to the rear of the movable hook 31 is attached to the pedestal main body. 20 rear wall 20
The front end of the fastening screw 33 inserted from the rear side is screwed into the a. On the other hand, on the lower surface of the mounting plate 21, both legs of a substantially U-shaped fixed hook 34 are pivotally supported by a pair of mounting tools 35, at a front position at a predetermined distance from the movable hook 31. The fixed hook 34 is hooked on the movable hook 31. 36 is a guide member of the fixed hook 34. In this state, when the fastening screw 33 is tightened,
The movable hook 31 retreats and pulls the fixed hook 34,
Since the mounting plate 21 is pivoted downward around the first hinge 22, the distance between the pedestal main body 20 and the mounting plate 21 is reduced, and when loosened, the distance is increased.

Next, the operation of the above configuration will be described. In the ball transfer device A, the device main body 2 is screwed and fixed on the mounting plate 25 of the pedestal 3 with the bolt 26, and the movable hook 31 is brought to the forward position by the fastening bolt 33, and the mounting plate 25 is connected. Set at the center of rotation around pin 24,
Further, the adjusting screw 28 is provided to the purchaser of the device in a moderately tightened state. In order to fix the ball transfer device A at a predetermined position on the front edge of the play mat 50, a gap between the pedestal main body 20 and the mounting plate 21 is fitted into the predetermined position, and the ball transfer arm 1 The mounting position and mounting position of the pedestal 3 such that the dropped ball portion 7 is brought directly above the tee 51 erected on the play mat 50 and the entrance side of the guide path 9 faces the outlet 63 of the automatic ball feeder 60. When the direction of the direction is adjusted and the fastening screw 33 is tightened, the play mat 50 is narrowed between the pedestal body 20 and the mounting plate 21, and the claws a and b are fixed on both sides of the play mat 50. The pedestal 3 is extremely easily and reliably fixed in a state where the pedestal 3 is maintained in a correct positional relationship with respect to the play mat 50. When it is desired to further adjust the positional relationship between the tee 51 and the falling ball portion 7, the adjusting screw 28 is once loosened, and the mounting plate 25 is rotated left and right around the connecting pin 24, thereby obtaining the falling ball portion 7. Can be adjusted in the left-right direction. When the adjusting screw 28 is tightened or loosened, the mounting plate 25 is
The ball falls in the vertical direction against the urging force of 0,
The vertical position of can be adjusted. Further, when it is desired to adjust the front and rear directions, the bolts 26 for attaching the apparatus main body 2,
What is necessary is just to loosen 26 once and to move the apparatus main body 2 back and forth.

In this ball transfer device A, the infrared irradiation type ball sensor 12 is assembled in a state where its irradiation direction is accurately set to the direction of the ball B of the tee 51. Unlike the device, when the device is newly installed or every time the play mat 50 or tee 51 is replaced,
The above-described troublesome work of adjusting the installation direction of the ball detection sensor can be omitted.

When the power switch of the automatic ball supply device 60 is turned on to use the ball transfer device A mounted on the play mat 50, the infrared rays radiated from the ball sensor 12 detect the location on the tee 51 where the ball B is placed. Irradiation, if the ball B is not supplied on the tee 51, the ball sensor 12 transmits this information to the operation control unit of the automatic ball supply device 60, and only one ball is transmitted from the ball transmission unit 63. The ball is transferred and moved on the guide path 9 of the ball transfer device A. The ball B, which rolls while moving on the taxiway 9 inclined forward and accelerates, collides with a position slightly forward of the horizontal support shaft 5 of the ball transfer arm 1 in the upright state at this time. Due to the weight of the ball B, the ball transfer arm 1 is laid down forward around the horizontal support shaft 5. Therefore, the ball B is the ball transfer arm 1
It rolls on the top to reach the falling ball portion 7 and is gently dropped and placed on the tee 51 located immediately below.

When the ball B on the ball transfer arm 1 is hit and removed, the ball transfer arm 1 returns to the upright state due to the weight distribution before and after the horizontal support shaft 5. At the same time, the ball sensor 12 detects that the ball B on the tee 51 has run out, and a new ball B is supplied on the tee 51.

At the time of the swing operation, an extremely large impact force is applied to the tee 51, and a horizontal moving force accompanying the movement of the player's feet is applied to the play mat 50. There is a high possibility that the fixed positional relationship of the play mat 50 with respect to the automatic ball supply device 60 at the time of installation is shifted. In such a case, the tee 51 naturally goes off the line of the ball detection sensor 70 in the infrared irradiation direction, and the ball cannot be detected. However, in the ball transfer device A of the present invention, the ball transfer arm 1 and the ball sensor 12 are mounted on the device main body 2 which is a common mounting base, and the ball transfer device A is firmly attached to the play mat 50. Since it is fixed, the play mat 50 is
Even if the relative positional relationship between the tee 51 and the ball automatic supply device 60 is shifted, there is no inconvenience that the irradiation direction of the infrared light is shifted from the standing position of the tee 51. Therefore, unlike the conventional device, in order to prevent this displacement, the automatic ball feeding device 60 is used.
And the play mat 50 are firmly connected to each other, or both of them are firmly fixed to the installation floor, respectively. The trouble of correcting the positional relationship between the ball detection sensor and the tee 51 can be completely omitted.

In the above-described configuration, the structure of the gripping mechanism 4 is not limited to the illustrated one, and may be, for example, a known configuration in which a cam and a lever are combined. Further, needless to say, the shapes and structures of the ball transfer arm 1 and the apparatus main body 2 are not limited to those illustrated, and the object of the present invention can be achieved even if the design is appropriately changed.
Then, the purchaser can use a product in which only the pedestal 3 from which the apparatus main body 2 is separated is attached, and another type of ball transfer device different from the above embodiment is attached to the pedestal.

[0020]

As is apparent from the above description, the present invention differs from the conventional golf practice apparatus in which the ball transfer arm and the ball detection sensor are incorporated in the automatic ball feeder. Has a structure in which both are separated from the automatic ball feeding device and combined into one device, and a pedestal for mounting and fixing the device on a play mat is provided. It has the effect. (A) When the golf practice apparatus is installed on the playground, the conventional apparatus requires that the correct positional relationship between the dropping hole at the tip of the ball transfer arm and the tee on the play mat repeats an intense swing motion. So that it does not come off
It was necessary to connect the automatic ball supply device and the play mat firmly to each other with a connecting iron plate or the like, or to fix both of them firmly on the playground. In the device of the present invention which is directly mounted and fixed, the above-mentioned misalignment does not occur, so that the above-mentioned troublesome work is not required at all. (B) Therefore, the cost and time for installing the golf practice apparatus can be significantly reduced. (C) In addition, since the mounting plate provided on the pedestal, on which the apparatus body is mounted, can be displaced in the up-down, left-right, and front-back directions, the correct positional relationship between the falling ball portion at the tip of the ball transfer arm and the tee. Can be easily and quickly performed after installation, as well as during installation of the device. (D) Since the ball transfer arm and the ball sensor are set in a predetermined positional relationship in the device of the present invention fixedly mounted on the play mat, the device differs from the conventional golf practice device. In addition, the troublesome work of adjusting the installation direction of the ball sensor at the time of installation can be omitted. (E) The operation of fixing the device of the present invention to the play mat is simply and reliably performed only by gripping a predetermined portion of the play mat (tightening a fastening screw) by a gripping mechanism incorporated in the pedestal. Complete. (F) By repeatedly performing a violent swing motion,
Even if the positional relationship between the automatic ball feeding device and the play mat shifts with time, unlike the conventional device, there is no possibility that the correct positional relationship between the ball sensor and the tee shifts. Therefore, a troublesome operation for correcting this shift is not required. (G) Also, when replacing a tee or a wear mat as a consumable, the trouble of adjusting the correct positional relationship between the ball detecting means and the tee can be omitted. At that time, the pedestal (device) can be used for various types of play mats.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is a side view showing a state where the play mat is gripped.

FIG. 3 is a side view showing the pedestal portion in a vertical cross section.

FIG. 4 is a perspective view of the pedestal body according to the first embodiment;

FIG. 5 is a plan view showing the installation state of the apparatus.

FIG. 6 is a partial perspective view showing an installation state of a conventional golf practice device.

FIG. 7 is an explanatory diagram of a situation when the play mat is shifted.

[Description of References] A Ball transfer device B Ball 1 Ball transfer arm 2 Device main body 3 Pedestal 4 Grasping mechanism 5 Horizontal support shaft 6 Weight unit 7 Falling ball unit 8 Groove recess 9 Guide path 10 Fixing protrusion 11 Bolt hole Reference Signs List 12 ball sensor 13 translucent window 14 connection cable 20 pedestal main body 20a rear wall 21 mounting plate (mounting portion) 22 first hinge 23 second hinge 23a, 23b rotating plate 24 connecting pin 25 mounting plate 26 bolt 27 long hole 28 Adjusting Screw 29 Nut 30 Leaf Spring 31 Movable Hook 32 Nut 33 Fastening Screw 34 Fixed Hook 35 Fixture 36 Guide Member a, b Claw 50 Play Mat 51 Tee 60 Automatic Ball Feeder 61 Ball Pool 62 Feeding Trough 63 Sending Part 64 Ball transfer arm 65 Horizontal support shaft 66 Falling ball port 70 Ball detection sensor

Claims (4)

(57) [Scope of request for utility model registration] 1. A device for transferring golf balls sent one by one from an automatic ball feeding device onto a tee (51) erected on a play mat (50), wherein the golf ball is vertically moved around a horizontal support shaft (5). It is rotatable, and it is turned downward by the weight of the delivery ball supplied to the rear end side which is always in an upright state to fall down, and the falling ball portion 7 at the front end thereof is located directly above the tee 51. And a ball transfer arm 1 configured to transfer the ball toward the falling ball portion 7, an apparatus main body 2 on which the ball transfer arm 1 is mounted, and a grip provided with the apparatus main body 2 mounted thereon. And a pedestal 3 configured so that the edge of the play mat 50 can be detachably gripped by the mechanism 4. 2. The apparatus according to claim 1, wherein a ball sensor for detecting the presence or absence of a golf ball on the tee is attached to the apparatus main body. 3. It is rotatable up and down around a horizontal support shaft 5,
The ball supplied from the automatic ball supply device is turned downward by the weight of the ball supplied from the ball automatic supply device so that the ball falls down, and the falling ball portion 7 at the front end is brought to a position directly above the tee 51 erected on the play mat 50, and The main body portion of the golf practice ball transfer device having a configuration in which the ball transfer arm 1 in which the ball is transferred toward the falling ball portion 7 is assembled to the device main body 2 is fixedly fixed at a predetermined position of the play mat 50. A pedestal main body 20 and a mounting portion 21 for mounting the apparatus main body 2.
And one end of each of them with a hinge 22 connected thereto.
A pedestal for a golf practice ball transfer device, comprising: a gripping mechanism 4 for gripping an edge of the play mat 50 sandwiched between the pedestal body 20 and the mounting portion 21. 4. The apparatus main body 2 is mounted on the mounting portion 21.
Is mounted so as to be displaceable in the vertical and horizontal directions and in the front and rear directions, so that the position of the falling ball portion 7 during the transfer of the golf ball can be finely adjusted in three-dimensional directions. The pedestal according to claim 3, wherein