KR20230166641A - Club type variable hybrid golf club - Google Patents

Abstract

A hybrid golf club with variable club type is disclosed. The club type variable hybrid golf club includes an external shaft in the form of a hollow tube; an inner shaft with a portion of its upper end inserted into the outer shaft; The club head body part coupled to the lower end of the inner shaft and one side of the club head main body part close to the inner shaft are connected by a hinge structure in a first direction away from the club head main body part and close to the club head main body part. A club head including a striking surface portion rotated in a second direction; a striking surface angle adjustment unit provided inside the club head body and configured to push the hitting surface portion in the first direction or pull the hitting surface portion in the second direction; a shaft operation unit connected to the inner shaft inside the outer shaft and elevating the inner shaft to be drawn in and out along the longitudinal direction of the outer shaft; a club type selection unit disposed on the upper part of the external shaft, including two or more first signal output units that output control signals, and configured to output a control signal by selecting one of the first signal output units; And the control signal of each of the two or more first signal output units is input, and the target shaft length of the inner shaft and the target loft angle of the hitting surface portion are achieved according to the control signal selected and input through the club type selection unit. It may include a main control unit that controls the shaft operation unit and the striking surface angle adjustment unit.

Description

Club type variable hybrid golf club {CLUB TYPE VARIABLE HYBRID GOLF CLUB}

The present invention relates to a golf club, and more specifically, to a club type variable hybrid golf club in which the shaft length and loft angle can be freely changed.

Golf clubs are usually divided into drivers, woods, irons, wedges, putters, etc. Each golf club is different for each company, but the average angle is 5° to 13° for the driver, 13° to 15° for the wood, and 19° and 3 for the 2-iron. 22° for burn iron, 25° for 4-iron, 28° for 5-iron, 32° for 6-iron, 36° for 7-iron, 40° for 8-iron, 9-iron It has a loft angle of 44°, 48° for pitching wedge (pw), 52° or 53° for approach wedge (aw), 55° or 56° for sand wedge, and 60° for lob wedge. there is.

The loft angle of a golf club refers to the 90-degree vertical line created in front of the club face based on the extended ground line of the sole in front of the face when the sole of the golf club head is placed on the ground and the ball in the center of the club face. The loft angle is the angle between the diagonal lines along the surface of the hitting area. It is an important factor to consider when hitting a golf ball. If the loft angle is large, the ball will float high and the distance will be short. Conversely, if the loft angle is small, the ball will not float and the distance will be short. It increases.

However, since all conventional golf clubs have a head portion immovably fixed to the shaft, they are configured to have only one loft angle, so users use multiple golf clubs suitable for each purpose. However, it is cumbersome to carry all the golf clubs that are not used frequently, and even if you carry them, exchanging golf clubs is also cumbersome.

Republic of Korea registered utility model 20-0384070

Therefore, the problem that the present invention aims to solve is that the shaft length and loft angle can be freely changed to immediately change and use various golf club types suitable for the purpose, eliminating the inconvenience of carrying various types of golf clubs with different shaft lengths and loft angles. The goal is to provide a variable club type hybrid golf club that solves this problem and increases user convenience.

A hybrid golf club with a variable club type according to an embodiment of the present invention includes an external shaft in the form of a hollow tube; an inner shaft with a portion of its upper end inserted into the outer shaft; The club head body part coupled to the lower end of the inner shaft and one side of the club head main body part close to the inner shaft are connected by a hinge structure in a first direction away from the club head main body part and close to the club head main body part. A club head including a striking surface portion rotated in a second direction; a striking surface angle adjustment unit provided inside the club head body and configured to push the hitting surface portion in the first direction or pull the hitting surface portion in the second direction; a shaft operation unit connected to the inner shaft inside the outer shaft and elevating the inner shaft to be drawn in and out along the longitudinal direction of the outer shaft; a club type selection unit disposed on the upper part of the external shaft, including two or more first signal output units that output control signals, and configured to output a control signal by selecting one of the first signal output units; And the control signal of each of the two or more first signal output units is input, and the target shaft length of the inner shaft and the target loft angle of the hitting surface portion are achieved according to the control signal selected and input through the club type selection unit. It may include a main control unit that controls the shaft operation unit and the striking surface angle adjustment unit.

In one embodiment, the shaft operation unit includes: a rotating screw accommodated inside the inner shaft and extending parallel to the inner shaft; A screw rotating device connected to the upper end of the rotating screw to rotate the rotating screw forward and backward; And a moving member coupled to the upper end of the inner shaft, screwed to the outer surface of the rotary screw in the form of a nut, and moving along the longitudinal direction of the rotary screw when the rotary screw rotates forward or reverse to raise and lower the inner shaft. , the striking surface angle adjustment unit includes: a first rotating member extending perpendicularly to the one side inside the club head main body and being capable of forward and reverse rotation; It is connected between the first rotating member and the striking surface portion, and when the first rotating member rotates forward or reverse, it moves along the longitudinal direction of the first rotating member and pushes the striking surface portion in the first direction. a striking surface angle adjustment member configured to pull in a second direction; and the first end is fixed to a point inside the outer shaft, the second end is fixed to a point on the upper end of the inner shaft, and a part of the length between the first end and the second end is formed during the first rotation. It may include an interlocking string wound one or more times along the circumferential direction of the member.

In one embodiment, the shaft operation unit includes: a shaft movement guide member provided between the outer shaft and the inner shaft to guide the movement of the moving member along the longitudinal direction of the outer shaft; And a shaft movement detection device disposed along the longitudinal direction of the internal shaft, detecting the moving distance of the moving member and transmitting the position value of the moved moving member to the main control unit, wherein the main control unit controls the shaft If it is determined that the position value input from the movement detection device matches the target shaft length, the operation of the shaft operation unit can be stopped.

In one embodiment, the club type selection unit includes a cylindrical club type selection knob rotatably coupled to an upper end of the external shaft in a circumferential direction of the external shaft; A first magnetic material provided at the lower end of the club type selection knob; and the two or more first signal output units, which are arranged along the circumferential direction of the external shaft at the bottom of the first magnetic material and output a control signal when corresponding to the first magnetic material. .

In one embodiment, the striking surface angle adjustment unit further includes a bobbin that is connected to the screw rotating device and rotates forward and backward together with the rotating screw, and the point at which the first end of the interlocking string is fixed is the It may be on one side of the bobbin.

According to the club type variable hybrid golf club according to the present invention, the shaft length and loft angle can be freely changed with a single golf club to suit the ball hitting environment and can be immediately changed to various golf club types suitable for the purpose, thereby changing the shaft length and loft angle. The inconvenience of carrying various types of golf clubs with different loft angles can be eliminated, and user convenience can be increased.

Figure 1 is a cross-sectional view schematically showing the overall appearance of a club type variable hybrid golf club according to an embodiment of the present invention.
FIG. 2 is an enlarged view of portion A of FIG. 1 and is a partial enlarged view for explaining the shaft operation unit.
FIG. 3 is an enlarged view of portion B of FIG. 1 and is a partial enlarged view for explaining the club type selection unit.
Figure 4 is an enlarged perspective view for explaining the club head and striking surface operation unit shown in Figure 1.
FIG. 5 is a view showing the side shape of the moving member shown in FIG. 2.
FIG. 6 is a view showing the side shape of the shaft movement guide member shown in FIG. 2.
Figure 7 is a view showing the combination of the moving member and the moving guide member shown in Figures 5 and 6 and the arrangement of the shaft movement detection device.
FIG. 8 is a diagram for explaining the shaft movement detection device shown in FIGS. 1 and 7.
FIG. 9 is a cross-sectional view for explaining the configuration of the club type selection unit shown in FIG. 3.

Hereinafter, a club type variable hybrid golf club according to an embodiment of the present invention will be described in detail with reference to the attached drawings. Since the present invention can be subject to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of the structures are enlarged from the actual size for clarity of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Figure 1 is a cross-sectional view schematically showing the overall appearance of a club type variable hybrid golf club according to an embodiment of the present invention, and Figure 2 is an enlarged view of portion A of Figure 1, and is a partial enlarged view for explaining the shaft operation unit. 3 is an enlarged view of part B of FIG. 1 and is a partial enlarged view for explaining the club type selection unit, and FIG. 4 is an enlarged perspective view for explaining the club head and striking surface operation unit shown in FIG. 1. , FIG. 5 is a view showing the side shape of the moving member shown in FIG. 2, FIG. 6 is a view showing the side shape of the shaft moving guide member shown in FIG. 2, and FIG. 7 is a view showing the side shape of the moving member shown in FIG. 5 and FIG. 6. It is a diagram showing the combination of the moving member and the moving guide member and the arrangement of the shaft movement detection device. FIG. 8 is a view for explaining the shaft movement detection device shown in FIGS. 1 and 7, and FIG. 9 is a view showing FIG. 3. This is a cross-sectional view to explain the configuration of the club type selection unit shown in .

Referring to Figures 1 to 9, the club type variable hybrid golf club according to an embodiment of the present invention includes an external shaft 110, an internal shaft 120, a club head 130, and a striking surface angle adjustment unit 200. , it may include a shaft operation unit 300, a club type selection unit 400, and a main control unit 500.

The external shaft 110 has a first length and may be provided in the form of a hollow tube, for example, in a cylindrical form.

The inner shaft 120 has a second length, and a portion of the upper end portion can be inserted into the outer shaft 110. For example, the second length may be longer than the first length, and the inner shaft 120 may be provided in a cylindrical shape with a diameter that can be drawn in and out of the outer shaft 110.

The club head 130 may include a club head body portion 131 and a striking surface portion 132.

The club head body portion 131 has an internal space and may include a neck portion 1311 bent and extended from one side, and the neck portion 1311 is coupled to the lower end of the inner shaft 120 to form the club head. (130) can be connected to the internal shaft (120).

The hitting surface portion 132 is a surface for hitting a golf ball, and has a hinge structure on one side of the club head body portion 131 that is close to the inner shaft 120, that is, one side that is close to the neck portion 1311. It may be connected to and rotated in a first direction away from the club head main body 131 and a second direction closer to the club head main body 131.

The striking surface angle adjustment unit 200 may be provided inside the club head body 131 and configured to push the striking surface 132 in the first direction or pull the striking surface 132 in the second direction.

As an example, the striking surface angle adjustment unit 200 may include a first rotating member 210, a striking surface angle adjusting member 220, and an interlocking string 230.

The first rotating member 210 extends perpendicularly to one side within the club head body 131 and can be rotated forward and backward. For example, one end of the first rotating member 210 is rotatably connected to a U-shaped hinge member 240, and the club head body portion 131 faces the hinge member 240 on one side. It can be rotatably connected to the inner surface of the device so as to be tiltable in the up and down directions, and threads may be formed on the outer surface along the longitudinal direction.

The striking surface angle adjustment member 220 is connected between the first rotating member 210 and the striking surface portion 132, and when the first rotating member 210 rotates forward or reverse, the first rotating member ( It may be configured to move along the longitudinal direction of 210 to push the hitting surface portion 132 in the first direction or to pull it in the second direction. As an example, the striking surface angle adjustment member 220 may include an elevating shaft 221, a first link member 222, and a second link member 223.

The lifting shaft 221 has a pillar shape, and the circumferential direction of the pillar shape includes a nut member 2211 screwed to the first rotating member 210 in a nut shape, and a second member extending from both ends of the nut member 2211. It may include a first link connection shaft 2212 and a second link connection shaft 2213.

The first link member 222 has one end rotatably connected to the other side opposite to the hinge-connected side of the striking surface portion 132, and the other end is rotatably connected to the first link connecting shaft 2212. A point where the first link 2221 and one end are connected to the inner surface of the head body 131 to which the U-shaped hinge member 240 is connected, and the other end is close to the other end of the first link 2221. It may include a pair of second links 2222 connected to enable relative rotation.

The second link member 223 includes a third link 2231 connected between the other side of the hitting surface portion 132 and the second link connecting shaft 2213, an inner surface of the head body portion 131, and It may include a pair of fourth links 2232 connected between the third links 2231. Since the structure of the third link 2231 and the pair of fourth links 2232 is the same as the structure of the first link 2221 and the pair of second links 2222, detailed description will be omitted. .

This striking surface angle adjustment member 220 moves in the longitudinal direction of the first rotating member 210 when the first rotating member 210 rotates forward and reverse, so that the nut member 2211 moves in the longitudinal direction of the first rotating member 210 and moves the lifting shaft ( 221) is lifted and lowered along the longitudinal direction of the first rotating member 210, and at this time, the first link member 222 and the second link member 223 pull or push the hitting surface portion 132 to perform the hitting. The angle of the face portion 132 may be adjusted.

The interlocking string 230 has a first end fixed to a point inside the external shaft 110, a second end fixed to a point near the upper end of the internal shaft 120, and the first end and the A portion of the length between the second ends is wound one or more times along the circumferential direction of the first rotating member 210, so that when the first end is pulled or the second end is pulled, the first rotating member 210 can be rotated. The first or second end of this interlocking string 230 is inserted from the inner shaft 120 into the neck portion 1311, wound around the first rotating member 210, and then inserted back into the inner shaft 120. It can be easily passed through.

The shaft operation unit 300 is connected to the inner shaft 120 inside the outer shaft 110 and can elevate and lower the inner shaft 120 to be drawn in and out along the longitudinal direction of the outer shaft 110. . As an example, the shaft operation unit 300 may include a rotating screw 310, a screw rotating device 320, and a moving member 330.

The rotating screw 310 has a certain length and may be accommodated inside the inner shaft 120 and extend parallel to the inner shaft 120.

The screw rotating device 320 is connected to the upper end of the rotating screw 310 and can rotate the rotating screw 310 forward and backward. As an example, the screw rotation device 320 may include a screw connection shaft 321, a reducer 322, and a drive motor 323.

The screw connection shaft 321 may be arranged coaxially with the rotating screw 310 and connected to the rotating screw 310.

The reducer 322 is connected to the screw connection shaft 321 and can rotate the screw connection shaft 321 and the rotating screw 310 forward and backward.

The drive motor 323 can be connected to the reducer 322 and drive the reducer 322 to rotate forward and reverse.

The club type selection unit 400 is disposed on the upper part of the external shaft 110 and includes two or more first signal output units 430 that output control signals, and one of the first signal output units 430 It can be configured to output a control signal by selecting .

As an example, the club type selection unit 400 may include a club type selection knob 410, a first magnetic material 420, and two or more first signal output units 430.

The club type selection knob 410 may be rotatably coupled to the upper end of the external shaft 110 in the circumferential direction of the external shaft 110, and its upper end may be coupled to a grip portion (not shown) of a golf club. It can be rotated by the grip part.

As an example, the club type selection knob 410 may be coupled to rotate in stages. To this end, the club type selection knob 410 can be coupled to rotate in stages by a pair of position fixing balls 440 and annular spring 450. In this case, the external shaft 110 is provided with a pair of ball insertion holes 111 into which the pair of positioning balls 440 are inserted to be symmetrically arranged, and the club type selection knob 410 is It may include three or more ball receiving holes 411 arranged along the circumferential direction, and the annular spring 450 includes a pair of ball receiving holes ( 451), the pair of position fixing balls 440 are accommodated in the pair of ball receiving holes 451 and are coupled to surround the external shaft 110, so that the pair of position fixing balls 440 are provided. Ensure that it does not deviate from the pair of ball insertion holes (111). For example, if there are three ball seating holes 411, the three ball seating holes 411 may be located at three equally divided points in the diameter of the club type selection knob 410, and there are always two. Can be configured so that the club type selection knob 410 can be rotated while being engaged with the pair of position fixing balls 440.

The first magnetic material 420 may be provided at the lower end of the club type selection knob 410.

The two or more first signal output units 430 may be arranged on the PCB so as to be arranged along the circumferential direction of the external shaft 110 at the lower part of the first magnetic material 420, and the first magnetic material 420 It can be configured to output a control signal if it corresponds to . As an example, each of the two or more first signal output units 430 is equipped with a Hall sensor and is configured to output a control signal by the Hall effect when facing the first magnetic material 420. It can be.

The main control unit 500 receives control signals from each of the two or more first signal output units 430, and controls the internal shaft 120 according to the control signal selected and input through the club type selection unit 400. It may be configured to control the shaft operation unit 300 and the striking surface angle adjustment unit 200 to achieve the target shaft length and the target loft angle of the striking surface portion 132.

Meanwhile, the club type variable hybrid golf club according to an embodiment of the present invention may further include a shaft movement guide member 600, a shaft movement detection device 700, and a motor overload prevention circuit 800.

The shaft moving guide member 600 is provided between the outer shaft 110 and the inner shaft 120 and can guide the movement of the moving member 330 along the longitudinal direction of the outer shaft 110. As an example, the shaft movement guide member 600 may be provided in the form of a hollow tube whose inner diameter is larger than the outer diameter of the inner shaft 120, and an opening 620 cut along the longitudinal direction is formed on one side, Guide grooves 610 formed along the longitudinal direction may be provided on both sides of the opening portion 620.

Meanwhile, in order to guide the movement of the moving member 330 by the shaft moving guide member 600, a pair of guide protrusions 331 protruding from the side of the upper end may be formed, and the pair of guide protrusions (331) may be accommodated in the shaft moving guide member 600 together with the inner shaft 120 to be inserted into each of the guide grooves 610.

The shaft movement detection device 700 is disposed along the longitudinal direction of the internal shaft 120, detects the moving distance of the moving member 330, and reports the position value of the moved moving member 330 to the main control unit ( 500).

As an example, the shaft movement detection device 700 may include a second magnetic body 710 and a plurality of second signal output units 720.

The second magnetic body 710 may be attached to the side of the moving member 330 and exposed toward the opening 620 of the shaft moving guide member 600.

The plurality of second signal output units 720 may be arranged along the movement path of the moving member 330 and the internal shaft 120, that is, along the longitudinal direction of the internal shaft 120. At this time, the plurality of second signal output units 720 are arranged to face the opening portion 620 of the shaft moving guide member 600, and when the moving member 330 moves, the second magnetic body 710 You can face each of them. The plurality of second signal output units 720 may be arranged at regular or random intervals. As an example, each of the two or more second signal output units 720 may be provided with a Hall sensor and may be configured to output a control signal by the Hall effect when facing the second magnetic material 710.

The motor overload prevention circuit 800 detects the load current when the drive motor 323 is driven, and when the overload current is detected, it can transmit an overload detection signal to the main control unit 500, and accordingly, the main control unit 500 When an overload detection signal is input, the control unit 500 can stop the drive motor 323 to prevent failure due to overload of the drive motor 323. For example, the motor overload prevention circuit 800 may be mounted on the main control unit 500 and a PCB and electrically connected to the driving motor 323.

Although not shown, a battery may be provided within the external shaft 110 and used as a power supply unit.

On the other hand, in the club type variable hybrid golf club according to an embodiment of the present invention, the striking surface angle adjustment unit 200 may further include a bobbin 250, a wire gap maintainer 260, and a tension adjustment spring 270. You can.

The bobbin 250 may be connected to the screw rotation device 320 and rotated forward and backward together with the rotation screw 310. For example, the bobbin 250 may be coupled to the screw connection shaft 321 and rotate together with the screw connection shaft 321. This bobbin 250 can wind or unwind the interlocking string 230. To this end, the point where the first end of the interlocking string 230 is fixed may be one side of the bobbin 250.

The wire gap maintainer 260 is provided on one side of the striking surface angle adjustment member 220 inside the club head main body 131 so that the interlocking string 230 is wound around the first rotating member 210. When splitting into two strands, it is possible to prevent each strand from becoming twisted. For example, the wire gap maintainer 260 may be configured in the form of a roller rotatably provided on the inner bottom surface of the club head main body 131.

The tension adjustment spring 270 can maintain the tension of the interlocking string 230. For example, the tension adjustment spring 270 may be wound around the first rotating member 210 and then provided at one point of the length extending toward the bobbin 250. At this time, the tension adjustment spring 270 may be provided so that the direction of tension and contraction is parallel to the longitudinal direction of the interlocking string 230.

Meanwhile, in the club type variable hybrid golf club according to an embodiment of the present invention, for example, the number of first signal output units 430 may be 13, and correspondingly, the number of club type selection knobs 410 may be increased. There may be 13 ball seating holes 411. In this case, one of the 13 first signal output units 430 sets and returns the basic initial club type, for example, the striking surface unit 132 is closed to the club head body unit 131. The remaining 12 first signal output units 430 may be equipped to output respective control signals for changing to different club types. In this case, for example, 4 of the 12 first signal output units 430 are 1st Wood (W1), 2nd Wood (W2), and 3rd Wood (W3) belonging to Wood among golf clubs. ), is preset in the main control unit 500 to be judged as a control signal for change to the 5th wood (W5), and the other 6 of the 12 first signal output units 430 are used for 4 to 4 of the golf clubs. It is preset in the main control unit 500 to be judged as a control signal for change to a 9 iron, and the other two of the 12 first signal output units 430 are wedges among golf clubs. ) can be preset in the main control unit 500 to be judged as a control signal for variation into the pitching wedge (PW) and sand wedge (SW) belonging to ).

In this case, there may be 13 second signal output units 720. For example, one of the 13 second signal output units 720 corresponds to one first signal output unit 430 that outputs a control signal of the initial club type and sets the target shaft length according to the initial club type. To achieve this, it may be used to set the moving position of the internal shaft 120, and the remaining 12 second signal output units 720 control each control signal to change to a different club type when each control signal is output. This may be to set the moving position of the internal shaft 120 in order to achieve the target shaft length according to the signal. For example, 4 of the 12 second signal output units 720 are the 1st Wood (W1), 2nd Wood (W2), 3rd Wood (W3), and 5 belonging to Wood among golf clubs. When the control signal for variation to the burn wood (W5) is output, it may be used to set the movement position of the internal shaft 120 to achieve the target shaft length according to each control signal, and the 12 second signals The other 6 of the output units 720 are internal shaft 120 to achieve the target shaft length according to each control signal when the control signal for changing the golf club to the 4th to 9th iron is output. It may be for setting the moving position of the 12 second signal output units 720, and the other two are variable to the pitching wedge (PW) and sand wedge (SW) belonging to the wedge among golf clubs. This may be to set the movement position of the internal shaft 120 to achieve the target shaft length according to each control signal when the control signal for is output. These 13 second signal output units 720 may be used to determine the moved distance of the internal shaft 120 in order for the main control unit 500 to control the moving distance of the internal shaft 120. That is, when a control signal is output from the first signal output unit 430, the main control unit 500 rotates the drive motor 323 of the shaft operation unit 300 forward or reverse according to the control signal to control the internal shaft ( When 120) moves, the moving position can be determined to achieve each target shaft length according to the control signal.

In addition, when the first signal output unit 430 and the second signal output unit 720 are 13, the number of ball seating holes 411 may also be 13, and 2 of the 13 ball seating holes 411 are always used. Can be configured so that the club type selection knob 410 can be rotated while being engaged with a pair of position fixing balls 440, and the first magnetic body 420 is connected to one of the 13 ball seating holes 411. It may be located on a same line in the vertical direction, and the positions of the 13 ball seating holes 411 are the same as the spacing between the 13 first signal output units 430 located below the club type selection knob 410. Can be arranged at intervals.

Each golf club type has a different loft angle and shaft length, and the main control unit 500 operates the shaft operation unit 300 to vary the target loft angle and target shaft length according to each control signal input. ) and the striking surface angle adjustment unit 200, the movement control of the internal shaft 120 and the angle control of the striking surface portion 132 can be performed.

Hereinafter, the club type variable hybrid golf club according to an embodiment of the present invention can be changed to two or more types of golf clubs. In other words, the shaft length and loft angle can be varied according to each type of two or more golf clubs. Below, the process of changing the shaft length and loft angle is explained.

When wanting to change the type of golf club, the user can first select the type of golf club by rotating the club type selection knob 410 coupled to the grip unit. That is, the user rotates the grip portion so that the club type selection knob 410 rotates. At this time, for example, when the club type selection knob 410 is rotated to select the No. 1 wood (W1), a control signal for selecting the No. 1 wood (W1) is output from the first signal output unit 430. A control signal is input to the main control unit 500.

Next, the main control unit 500 drives the shaft operation unit 300 to move the internal shaft 120 to achieve the target shaft length for variable to the No. 1 wood (W1) according to the input control signal. When the motor 323 is rotated forward or reverse, and the drive motor 323 is rotated, the reducer 322 is rotated and the rotary screw 310 is rotated, and a moving member screwed to the rotating rotary screw 310 ( As 330 moves with the inner shaft 120 toward the lower end of the rotating screw 310, that is, in a direction away from the reducer 322, a portion of the length of the inner shaft 120 is pulled out in the outer direction of the outer shaft 110. . At this time, the moving member 330 is moved while being guided along the shaft moving guide member 600.

As the moving member 330 and the internal shaft 120 are moved, the second magnetic material 710 is adjusted to the target shaft length for change to the first wood (W1) among the 13 second signal output units 720. When facing the correspondingly set second signal output unit 720, the second signal output unit 720 facing the second magnetic material 710 outputs a control signal to the main control unit 500, and the main control unit 500 Unit 500 may stop the rotation of the driving motor 323 according to a control signal input from the second signal output unit 720. Accordingly, the length of the shaft of the golf club changes.

In this way, as the drive motor 323 rotates in the process of pulling out the inner shaft 120, the bobbin 250 coupled to the screw connection shaft 321 rotated by the drive motor 323 rotates together, As the interlocking string 230 is wound around the rotating bobbin 250, the second end of the interlocking string 230 fixed to the moving member 330 is pulled, and the striking surface angle adjustment unit is operated by the pulled interlocking string 230. The first rotating member 210 of (200) rotates, and as the first rotating member 210 rotates, the nut member 2211 moves in the longitudinal direction of the first rotating member 210 to lift the lifting shaft 221. It descends, and at this time, the first link member 222 and the second link member 223 push the hitting surface portion 132 so that the hitting surface portion 132 rises, so that the loft angle of the hitting surface portion 132 is the No. 1 wood. It can be adjusted to a loft angle that matches the settings of (W1).

Meanwhile, as described above, when the drive motor 323 is rotated forward or reverse so that the inner shaft 120 is retracted into the outer shaft 110 in a state in which the inner shaft 120 is pulled out, the moving member (330) moves in a direction close to the reducer 322 along the longitudinal direction of the rotating screw 310, and at this time, the second end of the interlocking string 230 fixed to the moving member 330 is connected to the moving member 330. They move together and are pulled, and a portion of the length of the interlocking string 230 wound around the bobbin 250 is released, the first rotating member 210 rotates, and the nut member 2211 rises along the lifting shaft 221. , the first link member 222 and the second link member 223 pull the striking surface portion 132 so that the striking surface portion 132 is lowered so that the loft angle can be varied.

Meanwhile, as described above, the tension adjustment spring 270 is provided on the interlocking string 230 during the process of withdrawing or retracting the internal shaft 120, so the tension is maintained at all times and the interlocking string 230 does not become loose and is always stable. Variability of the loft angle can be achieved.

In this way, the club type variable hybrid golf club according to an embodiment of the present invention can be used by a user by changing the type of golf club to suit the ball hitting environment of the field where the golf game is played. Therefore, with one golf club, you can freely change the shaft length and loft angle to suit the ball striking environment and immediately change to various golf club types suitable for the purpose, allowing you to use various types of golf clubs with different shaft lengths and loft angles. The inconvenience of carrying it around is eliminated, and user convenience can be increased.

In addition, since the main control unit 500 is installed inside the external shaft 110, damage to the main control unit 500 is prevented even when the ball is hit through the hitting surface 132, so there is no risk of breakdown when hitting the ball. .

Meanwhile, a coating layer may be formed on the metal surface of the club head 130 of the variable club type hybrid golf club according to an embodiment of the present invention to improve weather resistance and wear resistance.

The coating materials for this coating layer include 25% by weight of triglycidyl p-aminophenol, 18% by weight of alkoxy alkylmonoamine, 12% by weight of hafnium, 16% by weight of organic acid magnesium, 9% by weight of titanium oxide (TiO ₂ ), and aluminum oxide ( It consists of 10% by weight of AIO ₂ ) and 10% by weight of Transcutol, and the coating thickness can be 9㎛.

Triglycidyl p-amino phenol and alkoxy alkylmonoamine play a role in corrosion prevention, weather resistance, and discoloration prevention, and hafnium is a transition metal element with wear resistance and weather resistance, and plays a role in having excellent water resistance and corrosion resistance.

Magnesium organic acid plays a role in providing alkali resistance and sliding properties to the surface of the coating film, Transcutol acts as a surfactant, and titanium oxide and aluminum oxide are added for the purpose of fire resistance and chemical stability.

The reason for limiting the ratio of the components and the coating thickness as above is that the present inventor analyzed the test results after repeated failures and found that the ratio showed the optimal weather resistance and abrasion resistance improvement effect.

Meanwhile, the surfaces of the first rotating member 210, the first link member 222, and the second link member 223 of the club type variable hybrid golf club according to an embodiment of the present invention are contaminated to improve contamination resistance. A stain-resistant coating layer made of an anti-staining coating composition may be applied.

The stain-resistant coating composition contains teradeoxycholate and esterquat in a molar ratio of 1:0.01 to 1:2, and the total content of teradeoxycholate and esterquat is 1 to 10% by weight based on the total aqueous solution.

The molar ratio of teradeoxycholate and esterquat is preferably 1:0.01 to 1:2. If the molar ratio is outside the above range, the first rotating member 210, the first link member 222, and the second link member (223) There is a problem that the coatability of the image is reduced or the coating film is removed due to increased moisture adsorption on the surface after application.

The teradeoxycholate and esterquat are preferably contained in an amount of 1 to 10% by weight in the total composition aqueous solution. If the amount is less than 1% by weight, the first rotating member 210, the first link member 222, and the second link member 223 There is a problem that the coatability of the phase is reduced, and if it exceeds 10% by weight, crystal precipitation is likely to occur due to an increase in the thickness of the coating film.

Meanwhile, it is preferable to apply the stain-resistant coating composition on the first rotating member 210, the first link member 222, and the second link member 223 by spraying. In addition, the final coating film thickness on the first rotating member 210, the first link member 222, and the second link member 223 is preferably 800 to 2400 Å, and more preferably 900 to 2000 Å. If the thickness of the coating film is less than 800 Å, there is a problem of deterioration in the case of high temperature heat treatment, and if it exceeds 2400 Å, there is a disadvantage in that crystal precipitation on the coating surface is likely to occur.

Additionally, the present stain-resistant coating composition can be prepared by adding 0.1 mole of teradeoxycholate and 0.05 mole of esterquat to 1000 ml of distilled water and then stirring.

The reason for limiting the ratio of the components and the thickness of the coating film to the above values is that the present inventor analyzed the test results after repeated failures and found that the ratio showed the optimal anti-contamination application effect.

Meanwhile, the surface of the external shaft 110 and the internal shaft 120 of the club type variable hybrid golf club according to an embodiment of the present invention is an environmental fragrance material mixed with functional oil that helps to sterilize and relieve user stress. This can be coated.

The mixing ratio of the fragrance material and the functional oil is 95 to 97% by weight of the fragrance material and 3 to 5% by weight of the functional oil, and the functional oil is 60% by weight of spearmint oil and Target oil. ) It consists of 40% by weight.

Here, it is preferable that the functional oil is mixed in an amount of 3 to 5% by weight based on the fragrance material. If the mixing ratio of the functional oil is less than 3% by weight, the effect is minimal, and if the mixing ratio of the functional oil exceeds 3 to 5% by weight, the effect is not significantly improved and the economic feasibility is low. Spearmint oil has a herbal spicy scent that purifies the mind psychologically and is effective in treating headaches and depression. Target oil is effective in sterilizing, insect repellent, and relieving stress. Therefore, as the fragrance material mixed with these functional oils is coated on the outer shaft 110 and the inner shaft 120, the outer shaft 110 and the inner shaft 120 are sterilized and the user's stress is reduced, etc. effects can be obtained.

The reason for limiting the components and limiting the mixing ratio for environmental fragrance materials and functional oils is that the present inventor analyzed the test results after repeated failures and found that the optimal composition and numerical ratio was determined. showed the effect.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not limited to the embodiments presented herein, but is to be construed in the broadest scope consistent with the principles and novel features presented herein.

110: external shaft 120: internal shaft
130: Club head 200: Strike surface angle adjustment unit
300: Shaft operation unit 400: Club type selection unit
500: main control unit 600: movement guide member
700: Shaft movement detection device 800: Motor overload prevention circuit

Claims (5)

External shaft 110 in the form of a hollow tube;
an inner shaft 120 whose upper end portion is partially inserted into the outer shaft 110;
The club head body portion 131 is coupled to the lower end of the inner shaft 120 and is connected to a hinge structure on one side of the club head body portion 131 adjacent to the inner shaft 120. A club head 130 including a striking surface portion 132 provided to rotate in a first direction away from (131) and a second direction closer to the club head body portion 131;
a striking surface angle adjustment unit 200 provided inside the club head body 131 and configured to push the striking surface 132 in the first direction or pull the striking surface 132 in the second direction;
A shaft operation unit 300 connected to the inner shaft 120 inside the outer shaft 110 and lifting the inner shaft 120 in and out along the longitudinal direction of the outer shaft 110;
It is disposed on the upper part of the external shaft 110 and includes two or more first signal output units 430 that output control signals, and selects one first signal output unit 430 to output a control signal. Consisting of a club type selection unit (400); and
A control signal from each of the two or more first signal output units 430 is input, and the target shaft length and the strike of the inner shaft 120 according to the control signal selected and input through the club type selection unit 400 Comprising a main control unit 500 that controls the shaft operation unit 300 and the striking surface angle adjustment unit 200 to achieve the target loft angle of the surface portion 132,
Club type variable hybrid golf club. According to paragraph 1,
The shaft operation unit 300 is,
a rotating screw 310 accommodated inside the inner shaft 120 and extending parallel to the inner shaft 120;
A screw rotation device 320 connected to the upper end of the rotation screw 310 to rotate the rotation screw 310 forward and backward; and
It is coupled to the upper end of the inner shaft 120 and is screwed to the outer surface of the rotary screw 310 in the form of a nut, so that when the rotary screw 310 rotates forward or reverse, it moves along the longitudinal direction of the rotary screw 310. It includes a moving member 330 that elevates the internal shaft 120,
The striking surface angle adjustment unit 200 is,
A first rotating member 210 extending perpendicularly to one side inside the club head body 131 and capable of rotating forward and backward;
It is connected between the first rotating member 210 and the striking surface portion 132, and moves along the longitudinal direction of the first rotating member 210 when the first rotating member 210 rotates forward or reverse. a striking surface angle adjustment member 220 configured to push the striking surface portion 132 in the first direction or pull the striking surface portion 132 in the second direction; and
The first end is fixed at a point inside the outer shaft 110, the second end is fixed at a point on the upper end of the inner shaft 120, and a partial length between the first end and the second end includes an interlocking string 230 wound one or more times along the circumferential direction of the first rotating member 210,
Club type variable hybrid golf club. According to paragraph 2,
The shaft operation unit 300 is,
A shaft movement guide member 600 provided between the external shaft 110 and the internal shaft 120 to guide the movement of the moving member 330 along the longitudinal direction of the external shaft 110; and
A shaft movement detection device is disposed along the longitudinal direction of the internal shaft 120 and detects the moving distance of the moving member 330 and transmits the position value of the moved moving member 330 to the main control unit 500. Further comprising a device 700,
The main control unit 500 stops the operation of the shaft operation unit 300 when it is determined that the position value input from the shaft movement detection device 700 matches the target shaft length.
Club type variable hybrid golf club. According to paragraph 2,
The club type selection unit 400,
A cylindrical club type selection knob 410 rotatably coupled to the upper end of the external shaft 110 in the circumferential direction of the external shaft 110;
A first magnetic body 420 provided at the lower end of the club type selection knob 410; and
The two or more first signal output units 430 are arranged along the circumferential direction of the external shaft 110 at the bottom of the first magnetic material 420 and output a control signal when corresponding to the first magnetic material 420. Including two or more first signal output units 430,
Club type variable hybrid golf club. According to paragraph 2,
The striking surface angle adjustment unit 200 is,
It further includes a bobbin 250 that is connected to the screw rotation device 320 and rotates forward and backward together with the rotation screw 310,
The point at which the first end of the interlocking string 230 is fixed is one side of the bobbin 250,
Club type variable hybrid golf club.

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