KR200495660Y1 - Apparatus for training golf with motion sensing circuit board - Google Patents

Abstract

Golf clubs for practice are provided. Golf club for practice according to an embodiment of the present invention is a golf club for practice in which a grip part is coupled to a shaft, a shaft, a circuit board inserted into an internal space open in the longitudinal direction of the shaft, and a rear end of the shaft inserted and coupled, a grip portion having an open rear end, the shaft having a first hole for fixing to the grip portion, and the grip portion having an inner protrusion fitted into the first hole while being inserted into the rear end of the shaft As a result, in a golf club for practice in which the rear end of the grip part is open, even if a swing operation is applied while the grip part and the circuit board are coupled to the shaft, various configurations are prevented from being separated from the original position.

Description

Golf club for practice with built-in motion sensing circuit board {APPARATUS FOR TRAINING GOLF WITH MOTION SENSING CIRCUIT BOARD}

The present invention relates to a golf club for practice. More specifically, it relates to a golf club for practice that can prevent various configurations from deviated from the original position even when a swing operation is applied in a state in which the grip portion and the circuit board are coupled to the shaft in the practice golf club having the rear end of the grip portion open.

In golf exercise, correct posture and force control of swing motion greatly affects performance, so practice of swing motion is required.

However, when practicing a swing using actual golf clubs to practice the correct swing motion, there are restrictions on the location due to the large size. restrictions existed.

Accordingly, when a golf club for practice that informs whether a swing operation is performed correctly using the blinking lamp of the practice golf club or an LED signal is developed, the above problems can be solved. However, in order to generate the electronic signal as described above, a circuit board must be inserted into the golf club for practice, which is preferably inside the shaft. However, it is necessary to open the rear end of the grip part in order to detach or provide the circuit base inside the shaft. Because of this, the grip part went deep into the front end of the shaft.

In particular, when manufacturing the grip part, a process in which the grip can always be positioned in the correct position is required. Since this work requires a very detailed type of work, the position of the grip part is often different depending on the skill of the manufacturer.

Therefore, in the practice golf clubs using a circuit board, research and development of the structure of the golf clubs for practice in which various configurations are located in the correct position and cannot be separated from the correct position is required.

Republic of Korea Patent Publication No. 10-1868749

Another technical problem to be solved by the present invention is to devise a golf club for practice in which the end of the grip part can be accurately positioned at the end of the shaft.

Another technical problem to be solved by the present invention is to provide a golf club for practice that can prevent the grip part having the rear open from entering the front end of the shaft as the grip part has an inner protrusion.

Another technical problem to be solved by the present invention is to provide a golf club for practice that can prevent the grip portion from being unintentionally rotated on the shaft as the grip portion has an inner protrusion.

Another technical problem to be solved by the present invention is to devise a golf club for practice that can be fixed to the shaft as the circuit board is provided with an external protrusion, and can prevent the circuit board from being separated to the outside of the shaft aim to

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to solve the technical problem, a golf club for practice according to an embodiment of the present invention is a golf club for practice in which a grip portion is coupled to the shaft, the shaft, a circuit board inserted into an internal space open in the longitudinal direction of the shaft, and a grip part inserted and coupled to the rear end of the shaft, the grip part having an open rear end, the shaft having a first hole for fixing to the grip part, the grip part being inserted into the rear end of the shaft It may be provided with an inner protrusion that is fitted into the hole.

In one embodiment, the inner protrusion is formed on the inner circumferential surface of the grip portion, and when the grip portion is inserted and moved to a position corresponding to the first hole, the inner protrusion may be fitted into the first hole by elasticity.

In an embodiment, the shaft further includes a second hole for being fixed to the circuit board, and the circuit board has an external protrusion that is fitted into the second hole while being inserted into the inner space of the shaft. can be

In an embodiment, the circuit board may include a PCB and a battery case, and the external protrusion may be a protruding region formed in the battery case of the circuit board.

In an embodiment, an end cap seated on the rear end of the shaft may be further included to cover an area open to the rear end of the grip part.

In one embodiment, a screw for coupling the battery case to the rear end of the shaft may be further included.

In one embodiment, the circuit board may generate an LED signal for detecting a swing trace of the golf club for practice, and controlling a lamp coupled to the front end of the shaft according to the swing trace.

1 is a view showing a golf club for practice according to an embodiment of the present invention.
Figure 2 is a cross-sectional view for explaining various structures coupled to the grip portion of the rear end of the golf club for practice.
3 is a cross-sectional view of the grip portion of the golf club for practice according to the present embodiment.
4 is a cross-sectional view of the shaft of the golf club for practice according to the present embodiment.
5 is a cross-sectional view of the circuit board of the golf club for practice according to the present embodiment.
6 is an enlarged cross-sectional view for explaining various configurations coupled to the rear end of the grip part.
7 is a view for explaining the external configuration of the rear end of the grip part.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments published below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a golf club for practice according to an embodiment of the present invention.

Referring to FIG. 1 , a golf club 100 for practice according to an embodiment of the present invention may include a ribbon 110 , a head unit 120 , a shaft 130 , and a grip unit 140 . Here, the practice golf club 100 is not limited to the embodiment shown in FIG. 1 , and may add new components or change or delete components as needed.

The practice golf club 100 is a device that can provide the user with an experience of hitting an actual golf ball through a swing motion without hitting the actual golf ball.

The ribbon 110 is configured to be coupled to the front end of the golf club 100 for practice, and may be coupled to various materials such as leather or cloth. Golf clubs 100 for practice, by being fastened with the ribbon 110, while preventing accidents from indoor swing practice, it is possible to practice with the actual length of the golf clubs, so that the effectiveness of practice can be obtained. In addition, in this embodiment, the ribbon 110 is provided, thereby maximizing the auditory effect generated during the swing. This embodiment is provided with a removable ribbon 110 can provide an optimal practice golf clubs 100 suitable for the user's body size. In this embodiment, a removable ribbon 110 is provided to secure different resistances depending on the width, thereby providing a golf club 100 for practice suitable for a user's desired flying distance.

The head unit 120 is a configuration coupled to the front end of the shaft 130, and as it is coupled with a weight control unit (not shown) having a weight, a user using the golf club 100 for practice can experience swinging golf clubs of various weights. can provide

The shaft 130 of the golf club may be formed of steel. In this embodiment, the shaft 130 formed of steel has disadvantages in that elasticity and repulsion are small, but has an advantage in terms of swing accuracy. In another embodiment, the shaft 130 may be formed of graphite. In this embodiment, the shaft 130 formed of graphite has a disadvantage in terms of swing accuracy, but has the advantage of being able to practice a light swing because of its good elasticity and repulsion. However, the shaft 130 is not limited to those formed of the materials listed above.

The grip part 140 is a configuration coupled to the rear end of the shaft 130 and may be made of rubber. In another embodiment, the grip unit 140 may be formed of an elastomer. However, the material of the grip unit 140 is not limited to the illustrated material, and various materials used for manufacturing the actual golf club grip may be included in the material of the grip unit 140 . The grip part of the present invention is a core configuration of the present invention, and will be described in detail below with reference to FIG. 2 .

So far, the schematic configuration of the golf club 100 for practice according to an embodiment of the present invention has been described with reference to FIG. 1 . Hereinafter, with reference to FIGS. 2 to 8 , a detailed configuration of the golf club 100 for practice according to an embodiment of the present invention will be described.

2 is a cross-sectional view for explaining various structures coupled to the grip portion 140 of the rear end of the golf club 100 for practice.

As shown in FIG. 2 , the grip part 140 may be inserted and coupled to the outside of the shaft 130 at the rear end of the golf club 100 for practice, and the circuit board 150 may be inserted into the shaft 130 .

The outermost grip part 140 surrounds the shaft 130 , and the circuit board 150 may be inserted into the shaft 130 .

The grip part 140 may have an open rear end, and may have an inner protrusion 141 inwardly. Since the rear end of the grip unit 140 is opened, a battery providing power to the circuit board 150 may be input to the rear end.

The shaft 130 may include a first hole 131a and a second hole 131b. The first hole 131a is a region coupled to the grip part 140 to fix the grip part 140 , and the second hole 131b is a region coupled to the circuit board 150 to fix the circuit board 150 .

The inner protrusion 141 is a region protruding to the inside of the grip part 140 , and may be fitted into the first hole 131a formed in the shaft 130 .

Hereinafter, the shaft 130 , the grip part 140 , and the circuit board 150 will be described in more detail with reference to FIGS. 3 to 5 .

3 is a cross-sectional view of the grip portion 140 of the golf club 100 for practice according to the present embodiment.

As shown in FIG. 3 , the grip part 140 may be configured as a handle having a hole into which the shaft 130 can be inserted. The shaft 130 may be formed with an inner protrusion 141, and the inner protrusion 141 may be made of a material having elasticity.

Therefore, although the inner protrusion 141 protrudes inward, even if the shaft 130 is fully inserted into the inner hole of the grip part 140 , it can be compressed by elasticity, and the inner protrusion 141 is the shaft 130 . When it is inserted to a position corresponding to the first hole 131a, it may be fitted while protruding into the first hole 131a of the shaft 130 by elasticity.

The inner protrusion 141 is illustrated as protruding in the shape of a mold in FIG. 3 , but is not limited thereto, and may protrude in various shapes, such as a circular shape, a pointed triangle, a cylindrical shape, and the like.

On the other hand, the grip portion 140 may be formed with an external protrusion 151 on the lower side to hang a finger. Since most of the grip parts 140 have such external protrusions 151 , when the user holds the grip part 140 with his/her hand, the grip part 140 may not be separated from the user's hand.

However, due to such a strong force, the shaft 130 and the circuit board 150, which are other components coupled to the grip part 140, receive centrifugal or centripetal force and are deviated from their original positions by this force.

Since the rear end of the grip part 140 is open, it can be inserted into the front end of the shaft 130 . Since the grip part 140 of this embodiment has an inner protrusion 141 , it is fixed to the shaft 130 while being fixed to the shaft 130 . ) can be prevented from being inserted toward the front end.

4 is a cross-sectional view of the shaft 130 of the golf club 100 for practice according to the present embodiment.

As shown in FIG. 4 , the shaft 130 may be formed in the form of a long rod with an empty interior. The shaft 130 may include a first hole 131a and a second hole 131b, the first hole 131a and the second hole 131b having an inner protrusion 141 formed in the grip part 140, respectively. and a shape corresponding to the shape of the external protrusion 151 formed on the circuit board 150 .

That is, when the inner protrusion 141 of the grip unit 140 is circular, the first hole 131a may be circular, and when the inner protrusion 141 of the grip unit 140 is rectangular, the first hole 131a is rectangular. can be Similarly, when the external protrusion 151 of the circuit board 150 is circular, the second hole 131b may be circular, and when the external protrusion 151 of the circuit board 150 is rectangular, the second hole 131b. may be a rectangle.

As described above, since the shape of the inner protrusion 141 of the grip part 140 and the shape of the first hole 131a correspond to each other, the grip part 140 can be accurately fixed to the shaft 130 , and the outside of the circuit board 150 . Since the shape of the protrusion 151 and the shape of the second hole 131b correspond to each other, the circuit board 150 may be accurately fixed to the shaft 130 .

Since the golf club 100 for practice according to an embodiment of the present invention is firmly fixed to the shaft 130 by the inner protrusion 141 of the grip unit 140 and the outer protrusion 151 of the circuit board 150, the user Even when swinging the golf club 100 for practice with a strong force, the grip part 140 is deeply inside the shaft 130, or the circuit board 150 is prevented from being separated into the open area at the rear end of the grip part 140. can

5 is a cross-sectional view of the circuit board 150 of the golf club 100 for practice according to the present embodiment.

5 , the circuit board 150 may be sized to be inserted into the inner hole of the shaft 130 .

The circuit board 150 may include an external protrusion 151 as shown. In an embodiment, the external protrusion 151 may be formed of an elastic body having elasticity. In another embodiment, the external protrusion 151 may be made of a non-elastic material such as iron, aluminum, or plastic. If the outer protrusion 151 is made of an inelastic material, the width of the circuit board 150 is narrow enough to be freely inserted into the inner hole of the shaft 130 after being inserted into the inner hole of the shaft 130 . It may be coupled to the shaft 130 using a coupling configuration such as a piece while the external protrusion 151 is in close contact with the second hole 131b of the shaft 130 to be fitted.

In addition, the circuit board 150 may detect the swing trajectory of the golf club 100 for practice, and generate an LED signal to control the lamp coupled to the front end of the shaft 130 according to the swing trajectory. The circuit board 150 may include a PCB and a battery case. The PCB can be combined with configurations that perform various functions, and as the main function, by sensing the movement path and angular height of the golf body for practice, it analyzes the swing trajectory, analyzes the appropriateness of the swing trajectory, and analyzes the appropriateness of the swing trajectory. LED signal can be generated. The golf club 100 for practice may be operated to indicate whether the user's swing trajectory is normal, and accordingly, the user can visually recognize whether the swing trajectory is normal or not without additional equipment.

In this embodiment, the lamp may be located at the front end of the head unit. Although the lamp in the present invention is shown to be coupled to the front end of the head part, it is not necessarily fixed to this position, and all parts of the golf club 100 for practice that the user can visually check when swinging, especially address and impact motion. can be modified to bind to

In one embodiment, the lamp may include LEDs, and in another embodiment, the lamp may include a plurality of LEDs. That is, not only ON/OFF of one color but also a plurality of colors can be expressed by a combination of LEDs. However, the present invention is not limited to the above-described embodiment, and any light emitting source that can be visually recognized from the front end of the head when the user swings may be included.

The lamp may output a preset color for each situation, depending on the LED signal generated by the circuit board 150 , depending on the appropriateness of the swing trajectory. Specifically, in one embodiment of the present invention, the lamp uses a signal generated from the sensor unit to display the first color when the swing trajectory falls within the reference range, and displays the second color when the swing trajectory does not fall within the reference range. can be displayed. As described above, the golf club 100 for practice can determine whether the swing trajectory is normal in a visual way by positioning the lamp on the upper part of the head, and accordingly, the first color if it corresponds to the reference range of the preset normal swing trajectory. is displayed, and when it is out of the reference range, the second color may be displayed. Accordingly, the user can recognize the color displayed on the lamp and determine whether the swing trajectory is normal without additional equipment. In this embodiment, the first color and the second color are not limited to a specific color.

In the present embodiment, the circuit board 150 may include a vibrator that generates a vibration signal corresponding to the user's swing trajectory using a signal output from the sensor unit. In an embodiment, a plurality of vibrators may be included.

In another embodiment, the circuit board 150 may be provided with a vibrator, and the vibrator may be located at a position where vibration is transmitted through the grip unit 140 . However, the present invention is not limited to the illustrated shape, and may be formed at all positions of the handle part where the user can recognize the vibration signal corresponding to the user's swing trajectory by himself/herself. Furthermore, one or more vibrators that can be positioned on the handle may be formed. By providing the vibrator in the handle, a vibration signal corresponding to the swing trajectory is generated, and the user can determine whether the user corresponds to the appropriate swing trajectory by using the sense of touch.

Hereinafter, an example of several methods for a user to determine the appropriateness of a swing by using the golf club 100 for practice according to the embodiment will be described in detail.

The golf swing is the address and the backswing. Top, down swing, impact and follow swing can be made, the practice golf club 100 can generate a signal for each of these divided swing motions.

In one embodiment of the present invention, the vibrator vibrates when the user's motion corresponds to the address motion and the angle between the shaft 130 and the ground corresponds to the reference angle using the signal output from the sensor unit, and the user When the motion of , corresponds to the impact, and the angle between the shaft 130 and the ground corresponds to the reference angle, it may vibrate. Conventional golf clubs 100 for practice use a magnet to generate a striking sound when more than the standard centrifugal force is generated. However, the conventional golf club 100 for practice does not form a normal address motion, and the swing trajectory also generates a corresponding hitting sound even outside the normal range, so it is not an effective device for beginners' practice. In the present embodiment, the user's motion and the angle between the shaft 130 and the ground can be grasped by the signal output from the sensor unit. In the address motion, the angle between the shaft 130 and the ground is set at a preset reference angle. If applicable, vibration is generated, and the user can start swinging according to the corresponding vibration signal. Furthermore, during the impact motion, vibration occurs when the predetermined reference angle is applied, and the user can recognize that a normal swing is made when the corresponding vibration signal is generated.

In one embodiment of the present invention, both the lamp and the vibrator described above may be included. E.g., the user can determine whether the swing trajectory is normal using not only the visual but also the tactile sense without additional equipment.

6 is an enlarged cross-sectional view for explaining various configurations coupled to the rear end of the grip unit 140 , and FIG. 7 is a view for explaining the external configuration of the rear end of the grip unit 140 .

Referring to FIG. 6 , the screw 151 may couple the battery case to the rear end of the shaft 130 . The screw 151 may be composed of a first screw 151-1 and a second screw 151-2, and as the battery case is more firmly fixed to the shaft 130, the circuit board 150 is removed from the outside. to prevent it from breaking out or being pushed forward.

In addition, the end cap 153 may be seated at the rear end of the shaft 130 . The end cap 153 may be formed in a shape corresponding to the open area at the rear end of the grip unit 140 , and may prevent the circuit board 150 from being detached.

As shown in FIG. 7 , the rear end of the grip unit 140 may be shielded by the end cap 153 , and as the screw 151 passes through the hole formed in the end cap 153 , the screw 151 is connected to the battery case and the shaft 130 . can be fixedly coupled.

Golf club 100 for practice according to an embodiment of the present invention has the end of the grip unit 140 by the inner protrusion 141 and the outer protrusion 151 even when the rear end of the grip unit 140 is opened at the end of the shaft 130. It can be precisely positioned and has the advantage of being able to maintain a fixed state even with a strong swing. Accordingly, a user using the golf club 100 for practice has the advantage of practicing a more realistic swing and practicing an accurate swing posture.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. can understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (7)

In the golf club for practice in which the grip part is coupled to the shaft,
shaft;
a circuit board inserted into an internal space open in the longitudinal direction of the shaft, the circuit board including a battery case having external protrusions and a PCB;
a grip part inserted and coupled to the rear end of the shaft, the rear end of which is open; and
a screw for coupling the battery case to the rear end of the shaft;
The shaft includes a first hole for fixing with the grip part and a second hole for fixing with the circuit board by being fitted with the external protrusion of the circuit board,
The grip part includes an inner protrusion that is fitted into the first hole while being inserted into the rear end of the shaft.
practice golf clubs. The method of claim 1,
The inner protrusion,
It is formed on the inner circumferential surface of the grip part, and when the grip part is inserted and moved to a position corresponding to the first hole, it is fitted into the first hole by elasticity,
practice golf clubs. The method of claim 1,
The shaft further includes a second hole for fixing to the circuit board,
The circuit board is formed with the external protrusion fitted into the second hole while being inserted into the inner space of the shaft.
practice golf clubs. delete The method of claim 1,
Further comprising an end cap seated on the rear end of the shaft so as to cover the open area at the rear end of the grip part,
practice golf clubs. delete The method of claim 1,
The circuit board is
Detecting the swing trajectory of the golf club for practice, and generating an LED signal for controlling a lamp coupled to the front end of the shaft according to the swing trajectory,
practice golf clubs.

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