Take-away posture confirmation device

Abstract

To provide a take-away posture confirmation device which enables a user to practice a take-away posture by making it possible to visually recognize the state of a user's club shaft at a take-away stage by using a light source.SOLUTION: The present invention provides a take-away posture confirmation device of a golf club for confirming the take-away posture, which includes a head 100, a shaft 120, and a grip 130. A slit beam irradiation part 200 is arranged on the head 100 or a predetermined portion of the shaft to radiate a slit beam at a predetermined angle. If necessary, the slit beam irradiation part 200 may be arranged on the head 100 or a predetermined portion of the shaft. The slit beam irradiation part includes: a fixing part 210 fixed to the shaft; and a laser generation part 250 fixed by the fixing part to radiate the slit beam 270. The slit beam 270 generated from the laser generation part is radiated onto the ground surface 90 on which a golf ball is placed to form a beam trajectory 255.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a takeaway posture confirmation device, and more particularly to a takeaway posture confirmation device that uses a light source to help a user adopt a correct posture during the takeaway stage. [Background technology]

[0002] A golf swing can be divided into several stages, including address (posture), takeaway, backswing (halfway back), top of backswing, downswing (halfway down), impact, release, and follow-through.

[0003] As shown in Figure 1, the takeaway begins at the address position (a) and ends at the point where the club is horizontal, which is called the takeaway stage (b). Generally, when the clockwise direction is used as the reference, the arm direction is said to be around 8 o'clock in the clockwise direction.

[0004] Although posture in all stages is important, it is generally said that the takeaway, which is the beginning of the backswing, is the starting stage of the swing, and correct movement in this stage is the basis for making the rest of the swing correct.If you start with incorrect posture in this stage, compensation will occur in one of the remaining stages, making it difficult to make a consistent swing.

[0005] On the other hand, referring to Fig. 2, three types of factors are generally used to check whether or not the takeaway motion is performed properly. That is, Fig. 2(a) shows the user's posture when viewed from the front, with the club shaft horizontal to the ground being the proper posture, and if the distance to the horizontal is short (not yet horizontal), it indicates that the wrists are hardly used, and if the club shaft is beyond the horizontal, it indicates that the wrists have been caulked in advance.

[0006] In addition, in the case of Figure 2(b), which shows the user viewed from the back (side), the ideal posture is when the club shaft is horizontal to the ground but parallel to the target, and there are cases where the head faces away from the target (outside takeaway) and cases where the head faces inward (inside takeaway) based on the grip part.

[0007] As shown in Figure 2(c), when the club shaft is parallel to the ground and parallel to the target, but the toe of the club head is perpendicular to the ground and points upward, this is called square. The preferred posture is when the toe of the other club head is roughly parallel to the user's tilted spinal angle, and this is called a closed club face position.

[0008] Furthermore, when the toe of the club head faces the torso of the person, the club head is called an open posture, which is said to be an undesirable posture often seen among amateurs.

[0009] Therefore, when practicing a swing, it is important to ensure that the user has the correct posture in the takeaway stage in real time, and practice and master the appropriate posture in the early stages of the swing, and the device and method provided for this purpose are very important.

[0010] However, devices and methods that can practice a takeaway posture are rarely found. Although swing analysis devices and methods that use cameras or motion detection sensors such as inertial sensors have been proposed, most of them analyze the trajectory and plane of the entire swing and provide the results to the user by comparing them with a reference posture. Therefore, there is currently a demand for a device that can practice a takeaway posture. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Korean Patent Registration No. 10-2240787 [Patent Document 2] Korean Patent Publication No. 10-2023-0089233 [Patent Document 3] Republic of Korea Patent Publication No. 10-2021-0026480 Summary of the Invention [Problem to be solved by the invention]

[0012] The present invention has been created to solve the above-mentioned problems, and its purpose is to provide a takeaway posture confirmation device that uses a light source to visually check the state of the user's club shaft during the takeaway stage, allowing the user to practice the correct takeaway posture.

[0013] However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the description of the invention described below. [Means for solving the problem]

[0014] In order to achieve the above object, the present invention provides a golf club for checking the state of a takeaway posture, the golf club comprising a head 100, a shaft 120 and a grip 130, and a slit beam irradiation unit that irradiates a slit beam at a certain angle on the head 100 or the shaft, and in some cases, the slit beam irradiation unit 200 may be arranged on the shaft close to the head.

[0015] In addition, the slit beam irradiation unit is provided with a fixing unit 210 that is fixed to the shaft, and a laser generating unit 250 that is fixed by the fixing unit and irradiates a slit beam 270, and it is preferable that the slit beam 270 emitted from the laser generating unit is irradiated onto a floor surface 90 on which a golf ball is placed to form a beam trajectory 255.

[0016] At this time, the beam trajectory 255 is projected onto another position on the floor depending on the position of the golf club in the takeaway position, and the beam trajectory is projected onto a position that can be seen by the user taking the takeaway position, and it is preferable that the slit beam projection unit 200 is disposed on the shaft close to the head so that the angle of the golf head can be confirmed.

[0017] Here, it is preferable that the angle of irradiation of the laser is controlled so that the beam locus irradiated from the laser generating unit 250 onto the floor surface is irradiated at a position that can be seen by the user in the takeaway position.

[0018] Furthermore, when a user using a golf club is viewed from the front, in the address position, the golf club is moved to the left to assume a takeaway position, and the position of the golf club is defined by the relative positions of the head and grip of the golf club in the takeaway position. When the user using the golf club is viewed from the front, the following positions are defined: an eleventh position in which the head is positioned above the grip; a twelfth position in which the head and grip are positioned at the same height and the shaft of the golf club is positioned parallel to the floor; and a thirteenth position in which the head is positioned below the grip.

[0019] Here, when viewing the user from the right side of the user, the 21st position is defined as a shape in which the head is positioned to the left of the grip (the head moves behind the user), the 22nd position is a shape in which the head is aligned with the grip, and the 23rd position is a shape in which the head is positioned to the right of the grip (the head moves in front of the user).

[0020] Here, the front side of the golf head is defined as the toe, the back side as the heel, and a straight line passing through the heel and perpendicular to the floor is defined as the heel vertical line. When the golf club is held in the first normal position and the position of the golf head is defined according to the angle at which the golf head is placed when the user is viewed from the right side of the user, the heel vertical line is defined as 0°, and the left side of the heel vertical line is defined as the "-" angle direction and the right side of the heel vertical line is defined as the "+" angle direction. When the heel is positioned on the heel vertical line, the toe is defined as a 31st position at which the toe is located to the left of the heel vertical line at an angle of -45° to less than 0°, a 32nd position at which the toe is located to the right of the heel vertical line at an angle of 0° to less than 30°, and a 33rd position at which the toe is located to the right of the heel vertical line at an angle of 31° to 90°.

[0021] In this case, a position that simultaneously satisfies the 12th position, the 22nd position, and the 32nd position is defined as a normal position, and a beam trajectory irradiated from the normal position to the floor surface is defined as a normal irradiation trajectory 300, and beam trajectories irradiated from the remaining positions excluding the normal position are defined as abnormal position trajectories.The normal position trajectory and the abnormal position trajectory are characterized in that they are irradiated onto different floor surfaces.

[0022] Furthermore, when a right-handed user taking a takeaway position is defined as a reference point, the upward direction is the +z-axis direction, the downward direction is the -z-axis direction, the leftward direction is the +y-axis direction, the rightward direction is the -y-axis direction, the forward direction is the +x-axis direction, and the backward direction is the -x-axis direction, and the center of normal irradiation trajectory 300 is defined as the origin, the normal irradiation trajectory 300 is parallel to the y-axis, and the laser irradiation angle is controlled so that it is irradiated from the user's toes 151 to the golf ball 150, but it is preferable that the irradiation range is controlled to extend beyond both sides of golf ball 150 as a reference point, and that the laser is irradiated at a position where the user can recognize normal irradiation trajectory 300 of the laser in the takeaway position.

[0023] Furthermore, when the golf club is positioned parallel to the y-axis and the user is viewed from the right side, when the golf head is rotated counterclockwise, the beam trajectory is irradiated to form a 31st trajectory 255CC that moves in the +x-axis direction so as to be parallel to the normal irradiation trajectory 300, and when the golf head is rotated clockwise, the beam trajectory is irradiated to form a 33rd trajectory 255CW that moves in the -x-axis direction so as to be parallel to the normal irradiation trajectory 300, and it is preferable that the beam trajectory is irradiated at a position where the user can confirm the 31st trajectory and the 33rd trajectory in the takeaway position.

[0024] Furthermore, when the golf club is positioned parallel to the y-axis and the golf head is moved upward, the beam trajectory is irradiated so as to form an eleventh trajectory 255U that moves in the -y direction from the normal irradiation trajectory 300, and when the golf head is moved downward, the beam trajectory is irradiated so as to form a thirteenth trajectory 255D that moves in the +y direction from the normal irradiation trajectory 300, preferably at a position where the user can confirm the 21st trajectory and the thirteenth trajectory in the takeaway position.

[0025] Furthermore, when the terminal point of the beam locus closest to the laser generating unit is defined as a first terminal point 271 and the terminal point on the opposite side is defined as a second terminal point 272, when the golf club is positioned parallel to the y-axis and the golf head is moved backward, the beam locus is irradiated so that the first terminal point 271 becomes a 21st locus 255R moving in the -x-axis direction while inclined relative to the normal irradiation locus 300, and when the golf head is moved forward, the beam locus is irradiated so that the first terminal point 271 becomes a 23rd locus 255F moving in the +x-axis direction while inclined relative to the normal irradiation locus 300, and the beam is irradiated at a position where the user can confirm the 21st locus and the 23rd locus in the takeaway posture.

[0026] Furthermore, a normal irradiation marker 310 that allows the position of the normal irradiation locus to be confirmed is placed at the position where the normal irradiation locus 300 is projected onto the floor surface, and it is preferable that the floor surface 90 is formed from a carpet or a rubber plate, and the normal irradiation marker 310 is formed by sticking a sticker on the floor surface or by printing.

[0027] The fixed part 210 and the laser generating part 250 in the slit beam irradiation part are connected by a hinge 260 and are arranged so that the direction of irradiation of the slit beam irradiated onto the floor surface can be changed by rotating the laser generating part, and the fixed part 210 may be assembled so as to be rotatable about the center of the shaft 120 and is arranged so that the direction of irradiation of the slit beam irradiated onto the floor surface can be changed by rotating it left and right about the center of the shaft.

[0028] The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0029] Prior to this, the terms and words used in this specification and claims shall not be interpreted in a limited manner to their ordinary or dictionary meanings, but shall be interpreted in a manner that corresponds to the technical idea of ​​the present invention, in accordance with the principle that the inventor can appropriately define the concept of the term himself / herself in order to best explain the invention. [Effects of the Invention]

[0030] As described above, according to the present invention, the state and position of the user's golf club can be visually confirmed using a light source when in a takeaway position, thereby enabling the user to intuitively recognize the takeaway position in real time and easily correct the posture. [Brief explanation of the drawings]

[0031] [Figure 1] FIG. 1 is a front view schematically showing a normal address position and a takeaway position. [Figure 2] FIG. 10 is a diagram showing check points for correct posture in the takeaway position. [Figure 3] 1 is a diagram schematically showing a golf club for checking the state of a takeaway position according to a preferred embodiment of the present invention; [Figure 4] 1 is a diagram defining the position of a golf club through the relative positions of the head and grip of the golf club in a takeaway position according to a preferred embodiment of the present invention; [Figure 5] 10A and 10B are diagrams showing a normal irradiation trajectory and an abnormal position trajectory according to a takeaway posture according to a preferred embodiment of the present invention. [Figure 6] 10A and 10B are diagrams showing a normal irradiation trajectory and an abnormal position trajectory according to a takeaway posture according to a preferred embodiment of the present invention. [Figure 7] 10A and 10B are diagrams showing a normal irradiation trajectory and an abnormal position trajectory according to a takeaway posture according to a preferred embodiment of the present invention. [Figure 8] A view from the "A" direction in Figure 4. [Figure 9]10 is a diagram showing the shape of a beam locus 255 formed when a slit beam 270 is irradiated onto a floor surface 90 according to the position of the golf club. DETAILED DESCRIPTION OF THE INVENTION

[0032] A preferred embodiment of the present invention will now be described with reference to the accompanying drawings. The size of components and thickness of lines shown in the drawings referred to in describing the present invention may be somewhat exaggerated for ease of understanding, ease of explanation, and clarity.

[0033] Furthermore, the terms used in the description of the present invention, which will be described later, are defined in consideration of the functions of the present invention, and may differ depending on the intentions or practices of the user or operator. Therefore, it is appropriate to define these terms in consideration of the overall content of this specification.

[0034] In addition, the following embodiments do not limit the scope of the present invention, but are merely illustrative of the elements disclosed in the claims of the present invention. Embodiments including elements that can be substituted as equivalents for the elements of the claims included in the overall technical idea of ​​the specification of the present invention may be construed as being within the scope of the present invention.

[0035] Attached Figure 1 is a front view showing a schematic representation of a normal address position and a takeaway position, Figure 2 is a diagram showing inspection elements for correct posture in a takeaway position, Figure 3 is a diagram showing a schematic representation of a golf club for checking the state of a takeaway position according to a preferred embodiment of the present invention, Figure 4 is a diagram defining the position of a golf club through the relative positions of the head and grip of the golf club in a takeaway position according to a preferred embodiment of the present invention, Figures 5 to 7 are diagrams showing normal illumination trajectories and abnormal position trajectories according to a takeaway position according to a preferred embodiment of the present invention, Figure 6 is a diagram showing normal illumination trajectories and abnormal position trajectories according to a takeaway position according to a preferred embodiment of the present invention, and Figure 8 is a diagram showing a view from the "A" direction of Figure 4.

[0036] As shown in Figure 3, the golf club of the present invention for checking the state of the takeaway posture comprises a head 100, a shaft 120, and a grip 130, and is characterized in that a slit beam irradiation unit is disposed to irradiate the head 100 or the shaft with a slit beam at a certain angle.

[0037] Furthermore, although not shown, the slit beam irradiation unit may be provided alongside the head, and in some cases may be located near the head of the shaft, in the middle of the shaft, or behind the grip of the shaft.

[0038] Furthermore, the slit beam irradiation unit 200 may be arranged on a shaft close to the head, and the slit beam irradiation unit includes a fixing unit 210 fixed to the shaft, and a laser generating unit 250 fixed by the fixing unit and irradiating a slit beam 270.

[0039] The slit beam 270 emitted from the laser generating unit is irradiated onto the floor surface 90 on which the golf ball is placed, forming a beam locus 255.

[0040] That is, the user can visually check the trajectory of the beam projected onto the ground and determine the takeaway posture, thereby correcting the posture while checking the beam trajectory in real time.

[0041] Furthermore, the beam trajectory 255 is projected onto another position on the floor depending on the position of the golf club in the takeaway position, and the beam trajectory is projected onto a position where the user in the takeaway position can be seen.

[0042] Furthermore, the slit beam irradiating unit 200 may be disposed on the shaft close to the head so that the angle of the golf head can be checked while the golf club is maintained in the normal position. In this case, the laser irradiation angle is controlled so that the beam trajectory irradiated from the laser generating unit 250 to the floor surface is irradiated at a position that can be checked by the user in the takeaway position.

[0043] Meanwhile, referring to FIG. 4, when a user using a golf club is viewed from the front, if the user moves the golf club to the left in the address position to take a takeaway position, the position of the golf club is defined by the relative positions of the head and grip of the golf club in the takeaway position.

[0044] In addition, the invention defines an eleventh position in which the head is positioned above the grip when the user is looking at the golf club from the front, a twelfth position in which the head and the grip are positioned at the same height and parallel to the shaft floor of the golf club, and a thirteenth position in which the head is positioned below the grip.

[0045] Furthermore, when viewing the user from the right side of the user, the 21st position is a shape in which the head is located to the left of the grip, the 22nd position is a shape in which the head is aligned with the grip, and the 23rd position is a shape in which the head is located to the right of the grip are defined, and the position that simultaneously satisfies the 12th position and the 22nd position is defined as the first normal position.

[0046] Furthermore, the front side of the golf head is defined as the toe and the back side as the heel, and a straight line passing through the heel and perpendicular to the floor is defined as the heel vertical line. When the golf club is held in the first normal position and the user is viewed from the right side of the user, the position of the golf head is defined according to the angle at which the golf head is placed.

[0047] Furthermore, when the heel vertical line is defined as 0°, and the left side of the heel vertical line is defined as the "-" angle direction, and the right side of the heel vertical line is defined as the "+" angle direction, the heel is positioned on the heel vertical line and the toe is defined as a 31st position where the toe is located to the left of the heel vertical line at an angle of -45° to less than 0°, a 32nd position where the toe is located to the right of the heel vertical line at an angle of 0° to less than 30°, and a 33rd position where the toe is located to the right of the heel vertical line at an angle of 31° to 90°.

[0048] Furthermore, if a position that simultaneously satisfies the 12th position, the 22nd position, and the 32nd position is defined as a normal position, and the beam trajectory irradiated from the normal position to the floor surface is defined as a normal irradiation trajectory 300, and the beam trajectories irradiated from the remaining positions excluding the normal position are defined as abnormal position trajectories, the normal position trajectory and the abnormal position trajectory are each irradiated onto different floor surfaces.

[0049] In addition to these, when a right-handed user taking a takeaway position is defined as a reference point, the upward direction is the +z-axis direction, the downward direction is the -z-axis direction, the leftward direction (towards the target) is the +y-axis direction, the rightward direction is the -y-axis direction, the forward direction is the +x-axis direction, and the backward direction is the -x-axis direction, and the center of normal irradiation trajectory 300 is defined as the origin, the normal irradiation trajectory 300 is parallel to the axis, and the laser irradiation angle is controlled so that it is irradiated from the user's toes 151 to the golf ball 150, but it is preferable that the irradiation range is controlled so that it extends beyond both sides of golf ball 150, so that the laser is irradiated at a position where the user can recognize the normal irradiation trajectory 300 of the laser when in a takeaway position.

[0050] Also, referring to FIG. 5, when the golf club is positioned parallel to the y-axis and the user is viewed from the right side, when the golf club head is rotated counterclockwise, the beam trajectory is irradiated to form a 31st trajectory 255CC that moves in the +x-axis direction so as to be parallel to the normal irradiation trajectory 300.

[0051] When the golf club head is rotated clockwise, the beam trajectory is irradiated so as to become a 33rd trajectory 255CW that moves in the -x-axis direction so as to be parallel to the normal irradiation trajectory 300, and is irradiated at a position where the user can confirm the 31st trajectory and the 33rd trajectory in the takeaway position.

[0052] Also, referring to Figure 6, when the golf club is positioned parallel to the y-axis and the golf head is moved upward, the beam trajectory is irradiated to become an eleventh trajectory 255U that moves in the -y direction from the normal irradiation trajectory 300.

[0053] When the golf head is moved downward, the beam trajectory is irradiated so as to become a 13th trajectory 255D that moves in the +y direction from the normal irradiation trajectory 300, and is irradiated at a position where the user can confirm the 21st trajectory and the 13th trajectory in the takeaway position.

[0054] Furthermore, referring to Figure 7, when the terminal point of the beam trajectory closest to the laser generating unit is defined as the first terminal point 271 and the terminal point on the opposite side is defined as the second terminal point 272, when the golf club is positioned parallel to the y-axis and the golf head is moved backward, the beam trajectory is tilted with respect to the normal irradiation trajectory 300 and is irradiated so that the first terminal point 271 becomes a 21st trajectory 255R moving in the -x-axis direction.

[0055] When the golf head is moved toward the front, the beam trajectory is inclined relative to the normal irradiation trajectory 300, and is irradiated so that the first end point 271 becomes the 23rd trajectory 255F moving in the +x-axis direction, and is irradiated at a position where the user can confirm the 21st trajectory and the 23rd trajectory in the takeaway position.

[0056] Furthermore, a normal irradiation marker 310 that allows the position of the normal irradiation locus to be confirmed is placed at the position where the normal irradiation locus 300 is projected onto the floor surface.

[0057] Furthermore, the floor surface 90 may be formed from a carpet or a rubber plate, and the normal irradiation marker 310 may be formed by sticking a sticker on the floor surface or by printing.

[0058] Furthermore, referring to Figures 3 and 8, the fixing unit 210 and the laser generating unit 250 in the slit beam irradiating unit are connected by a hinge 260 and are arranged so that the direction of the slit beam irradiated onto the floor can be changed by rotating the laser generating unit.

[0059] Furthermore, the fixed part 210 is mounted rotatably about the center of the shaft 120 and is arranged so that the irradiation direction of the slit beam irradiated onto the floor surface can be changed by rotating it left and right about the center of the shaft.

[0060] In addition to these, an assembly part 211 is provided on one side of the fixed part so as to be rotatable about the center of the shaft 120, and the laser generating part 250 is provided with an aperture 251 that controls the radiation angle of the slit beam, thereby adjusting the radiation angle of the slit beam.

[0061] FIG. 9 is a diagram showing the shape of the beam trajectory 255 formed when the slit beam 270 is projected onto the floor surface 90 depending on the position of the golf club, and schematically shows the beam trajectory deviating from the normal irradiation marker 310 depending on the user's posture.

[0062] FIG. 9 is a schematic example, and it goes without saying that there may be differences from the actual product.

[0063] The present invention has been described in detail above by citing specific embodiments, but these are merely for the purpose of specifically explaining the present invention, and the present invention is not limited thereto in any way. It is clear that modifications and improvements can be made by those having ordinary knowledge in the art within the technical concept of the present invention.

[0064] Any mere modification or alteration of the present invention falls within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims. [Explanation of symbols]

[0065] 90 floor 100 heads 120 shaft 130 Grip 150 golf balls 200 Irradiation unit 210 Fixed part 211 Assembly section 250 Laser generating unit 251 aperture 255 beam trajectory 260 Hinge 270 Slit Beam 300 Normal irradiation trajectory 310 Normal Irradiation Marker

Claims

1. In a golf club for checking the state of the takeaway posture, The golf club comprises a head (100), a shaft (120), and a grip (130), and a slit beam irradiation unit (200) is disposed to irradiate a slit beam at a fixed angle onto a predetermined portion of the head (100) or the shaft.

2. The slit beam irradiation unit (200) is disposed at a predetermined position on the head (100) or shaft, The slit beam irradiation unit (200) has: A fixing portion (210) fixed to the shaft; a laser generating unit (250) fixed by the fixing unit and irradiating a slit beam (270); is deployed, 2. The takeaway posture confirmation device according to claim 1, wherein a slit beam (270) emitted from the laser generating unit is irradiated onto a floor surface (90) on which the golf ball is placed to form a beam trajectory (255).

3. 3. The takeaway position confirmation device of claim 2, wherein the beam trajectory (255) is projected to another position on the floor depending on the position of the golf club in the takeaway position, and the beam trajectory is projected to a position that can be confirmed by a user taking the takeaway position.

4. The takeaway posture confirmation device according to claim 3, wherein the slit beam irradiating unit (200) is arranged at a predetermined position on the head (100) or shaft so as to be able to confirm the angle of the golf head, and at this time, the laser irradiation angle is controlled so that the beam trajectory irradiated from the laser generating unit (250) onto the floor surface is irradiated at a position that can be confirmed by the user when in the takeaway posture.

5. When a golfer is seen from the front using a golf club, if the golf club is moved to the left in the address position to take a takeaway position, the position of the golf club is defined by the relative positions of the head and grip of the golf club in the takeaway position. When a user using the golf club is viewed from the front of the user, an eleventh position is defined as a shape in which the head is positioned above the grip, a twelfth position is defined as a shape in which the head and the grip are positioned at the same height and the shaft of the golf club is positioned parallel to the floor, and a thirteenth position is defined as a shape in which the head is positioned below the grip, A 21st position is a shape in which the head is positioned to the left of the grip (the head moves to the rear of the user) when the user is viewed from the right side of the user, a 22nd position is a shape in which the head coincides with the grip, and a 23rd position is a shape in which the head is positioned to the right of the grip (the head moves to the front of the user), 5. The takeaway posture confirmation device according to claim 4, wherein a position that simultaneously satisfies the 12th position and the 22nd position is defined as a first normal position.

6. The front side of the golf head is defined as the toe, the rear side as the heel, and a straight line passing through the heel and perpendicular to the floor is defined as a heel perpendicular line. When the golf club is held in a first normal position and the user is viewed from the right side of the user, the position of the golf head is defined according to the angle at which the golf head is placed. a 31st position in which, when the heel vertical line is defined as 0° and the left side direction is defined as a "-" angle direction and the right side direction is defined as a "+" angle direction with respect to the heel vertical line, the heel is positioned on the heel vertical line and the toe is positioned at an angle of -45° to less than 0° to the left of the heel vertical line; a 32nd position in which the toe is positioned between 0° and less than 30° to the right of the heel vertical; a 33rd position in which the toe is positioned 31° to 90° to the right of the heel vertical line; Define A position that simultaneously satisfies the 12th position, the 22nd position, and the 32nd position is defined as a normal position, and a beam trajectory irradiated from the normal position to the floor surface is defined as a normal irradiation trajectory (300).

6. The takeaway posture confirmation device according to claim 5, wherein when the beam trajectories irradiated from the remaining positions excluding the normal position are defined as abnormal position trajectories, the normal position trajectory and the abnormal position trajectory are irradiated onto different floor surfaces.

7. With respect to a right-handed user taking a takeaway posture as a reference, the upward direction is the +z-axis direction, the downward direction is the −z-axis direction, the leftward direction is the +y-axis direction, the rightward direction is the −y-axis direction, the forward direction is the +x-axis direction, and the backward direction is the −x-axis direction, 7. The takeaway posture confirmation device according to claim 6, wherein when the center of the normal irradiation trajectory (300) is defined as the origin, the normal irradiation trajectory (300) is parallel to the y-axis, and the laser irradiation angle is controlled so that it is irradiated between the user's toes (151) and the golf ball (150), and the irradiation range is controlled to extend beyond both sides of the golf ball (150) so that the laser is irradiated at a position where the user can recognize the normal irradiation trajectory (300) of the laser in the takeaway posture.

8. When the golf club is positioned parallel to the y-axis and the user is viewed from the right side, when the golf club head is rotated counterclockwise, the beam trajectory is irradiated to become a 31st trajectory (255 CC) that moves in the +x-axis direction so as to be parallel to the normal irradiation trajectory (300), The takeaway posture confirmation device of claim 7, characterized in that when the golf head is rotated clockwise, the beam trajectory is irradiated so as to become a 33rd trajectory (255CW) that moves in the -x-axis direction so as to be parallel to the normal irradiation trajectory (300), and is irradiated at a position where the user can confirm the 31st trajectory and the 33rd trajectory in the takeaway posture.

9. When the golf club is positioned parallel to the y-axis and the golf head is moved upward, the beam trajectory is irradiated so as to become an eleventh trajectory (255U) moving in the -y direction from the normal irradiation trajectory (300), 8. The takeaway posture confirmation device according to claim 7, wherein when the golf head is moved downward, the beam trajectory is irradiated so as to become a thirteenth trajectory (255D) that moves in the +y direction from the normal irradiation trajectory (300), and is irradiated at a position where the user can confirm the 21st trajectory and the thirteenth trajectory in the takeaway posture.

Images