JP2536533Y2 - Golf swing practice equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a golf swing practice that allows a player to practice a swing without actually hitting a ball, while checking the trajectory of light to see if the player is swinging in the correct form. The present invention relates to a club, and more particularly to a golf swing exerciser with an improved switch.

[0002]

2. Description of the Related Art Conventionally, as a method of practicing a swing without actually hitting a golf club head with a ball, an ordinary swing of a golf club or a light emitting portion is formed at a tip portion and a grip portion of a club shaft. There is a method of performing a swing practice using a golf swing practice device. This golf swing practice club includes FIGS. 10 and 11.
As shown in FIG.
2 and a light emitting unit 52 is also connected to the grip portion 51b, and power is supplied from the batteries C and C incorporated in the light emitting units 52 and 52, and the switches formed in the light emitting units 52 and 52 are connected. 53 to operate each of the light emitting units 5
The structure was such that the light sources 60, 60 of 2,52 were turned on or off.

[0003] The light emitting section 52 is provided with a screw 55 formed on the outer periphery of one end of a cylindrical synthetic resin case 54 and a screw 57 formed on the inner periphery of the opening of a bottomed cylindrical metal battery case 56. The battery case 56 accommodates the dry cells C, C. A slide hole 58 is opened at an appropriate position of the battery case 56, and the battery case 56 is inserted into the slide hole 58. The switch 53 is configured to slide in the longitudinal direction of the peripheral surface of the switch. A contact 59 made of a conductive leaf spring is attached to a tip 53 a of the switch 53 projecting into the battery case 56.
And the contact 59 is configured to be separated from and connected to the wing 61 supporting the base of the bulb 60 held in the case 54. Thus, the switch 53
Is slid in the direction of the arrow X in the longitudinal direction of the battery case 56, the light bulb 60 is turned on. Conversely, when the switch 53 is slid in the direction of the arrow Y, the light bulb 60 is turned off.

[0004] In the golf swing training device having the above-described configuration, the light emitting portions 52, 52 formed on the tip portion 51a corresponding to the club head portion and the grip portion 51b generate a locus of light during a swing. It is possible to know whether or not the trainee is correctly swinging the club based on the trajectory of light.

As an improvement of the slide type switch mechanism, as shown in FIGS. 12 and 13, a switch 62 which slides in an axial direction into a slide hole 58 formed in a side surface of a cylindrical case 54 is provided. A contact 63 made of a conductive leaf spring and having a bent portion 63a in the middle is fixed to the inside of the slide hole 58, and the tip of a protrusion 64 protruding from the rear surface of the switch 62 is connected to the contact 63. (See FIG. 13) so as to be separated from and connected to the terminal 65 on the battery case 56 side to perform a switch operation.

[0006]

However, in the above conventional golf swing practice device, the sliding direction of the switches 53 and 62 is the same as the direction in which the centrifugal force is exerted by the swing of the golf club. Since the slide switches 53 and 62 are not provided with a stopper or the like, there is a problem that electrical contact failure is likely to occur.

Further, the case 54 of the light emitting section 52 is made of synthetic resin, and when the tip 51a comes into contact with the ground during a swing and receives an impact, a screw 5 on the case 54 side is used.
There is also a problem that the threaded portion between the screw 5 and the screw 57 on the battery case 56 side is broken or deformed, which may cause electrical contact failure.

The present invention has been made in view of the above-mentioned problems, and has a simple structure in which a light emitting element such as a light emitting diode is used as a light source of a light emitting section and a rotary switch mechanism is configured. It is an object of the present invention to provide a golf swing practice device with improved vibration resistance and impact resistance.

[0009]

In order to achieve the above-mentioned object, a golf swing training device according to the present invention is a golf swing training device comprising a light emitting portion on a grip side and a tip side of a shaft. the respective light emitting portion, a conductive fixed cylinder detachably connected to the shaft, with connecting rotatably by interposing a disc-like spacer for insulating and to the fixed tube, light emitting diode And a conductive rotating cylinder housing the rotating cylinder, and a contact is formed on the inner peripheral surface of the rotating cylinder, and is configured to protrude in the circumferential direction from the cylindrical shaft end face of the fixed cylinder with respect to the contact. It is a gist of the present invention to constitute a rotary switch mechanism in which the connected terminals are separated from each other to perform a switching operation between the rotary cylinder and the fixed cylinder. In the above rotary switch mechanism, each light emitting unit is
A conductive fixed cylinder detachably connected to the shaft,
With connecting rotatably through the cylindrical spacer which insulates it against the fixed cylinder, composed of a conductive rotary cylinder which accommodates a light emitting diode, and times to the bottom of the fixed tube
The terminal projecting into the rolling tube side protruded, and bottom loosely inserted rotatably in the fixed tube and the spacer hole and the partially formed capable of projecting the said terminal, by rotating the rotating cylinder the By displacing the position of the spacer, a rotary switch mechanism can be used in which the terminals are separated from each other to perform a switching operation between the fixed cylinder and the rotary cylinder.

[0010]

According to the above construction, since the rotating direction of the rotary switch mechanism formed in the light emitting section is different from the direction of action of the centrifugal force due to the swing of the golf club, the centrifugal force is applied to the switch mechanism section. No electrical contact failure occurs. That is, since the rotary switch mechanism is configured such that a terminal configured to protrude in the circumferential direction on the end surface of the fixed cylinder is brought into contact with a contact formed on the inner peripheral surface of the rotary cylinder, current is supplied to the terminal. This energized state can be reliably maintained. In addition, since the rotary switch mechanism has an integral structure with the light emitting unit that accommodates the light emitting diode, the light emitting unit can be easily assembled to the shaft,
At the same time, the electrical connection can be easily made simply by bringing the electrode constituting the switch mechanism into contact with the electrode of the battery built inside the shaft. In particular, since the light emitting diodes are used as the light sources of the light emitting units formed on the grip side and the distal end side of the shaft, the trajectory of the light that the light emitting unit is lit, that is, the afterimage can be clearly confirmed. Furthermore,
Even when the rotary switch mechanism is configured to energize when the terminal of the fixed cylinder is shifted to the rotating cylinder side by shifting the spacer together with the rotating cylinder, the energized state is not affected by large vibration or impact. It will not be inhibited.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a golf swing practice device according to the present invention will be described below with reference to the drawings. FIG. 1 shows a golf swing practice device according to the present invention. In the drawings, reference numeral 1 denotes a shaft of a golf club, 2 denotes a leather or rubber grip connected to one side of the shaft 1, 3 denotes a light-emitting portion formed on the grip 2, and 4 denotes a tip side of the shaft 1, that is, This is a light emitting unit configured at a position corresponding to a head portion of an ordinary golf club.

FIGS. 2 and 3 relate to a first embodiment of the golf swing training device according to the present invention, and particularly show a light emitting portion arranged on the grip side. The light emitting portion on the shaft tip side has the same configuration as the light emitting portion on the grip side. A light-emitting unit 3 formed on the grip 2 side includes a conductive fixed cylinder 5 made of aluminum die-casting having a cylindrical or hexagonal shape and a bottomed cylindrical shape, which is detachably connected to the shaft 1, and a fixed cylinder 5. And a rotatable cylinder 7 made of a cylindrical aluminum die-cast or the like for accommodating the light source 6 and rotatably connected to the rotary cylinder 5. In the present embodiment, the light source 6 of the light emitting section 3 has a structure in which a light emitting diode that emits light with low power and has a low disconnection or other accident occurrence rate is used.

The fixed cylinder 5 has a screw 9 which is screwed into a screw 8 formed on the outer periphery of the end of the shaft 1 on the inner periphery of the open end on one side. It can be detachably screwed and connected. A disc-shaped spacer 1 is provided at the connection between the fixed cylinder 5 and the rotary cylinder 7.
0 constitutes a rotary switch mechanism to be described later. That is, at the outer end on the other side of the fixed cylinder 5, a cylindrical shaft 11 which rises concentrically with the center axis of the fixed cylinder 5 and has a smaller diameter than the fixed cylinder 5 is formed, and the spacer 1
A cylindrical shaft 12 having a cylindrical length smaller than the diameter of the spacer 10 and having a length substantially matching the cylindrical length of the cylindrical shaft 11 on the fixed cylinder 5 side is also formed on the end face of the spacer 0. The cylinder shaft 12 of the spacer 10 is fitted into the cylinder shaft 11 of the fixed cylinder 5 to electrically separate the fixed cylinder 5 including the cylinder shaft 11 from the rotating cylinder 7 and rotate via the spacer 10. The cylinder 7 is configured to be freely rotatable, and a substrate 13 is mounted on the surface of the spacer 10 by superimposition. Thus,
Since a sliding surface for performing a rotation switch function of the rotating cylinder 7 on the fixed cylinder 5 can be formed on the spacer 10 side, protection of the plate surface of the substrate 13 mounted in the rotating cylinder 7 is ensured. Can be. 10a is a spacer 10
Are projecting from the plate surface to the substrate 13 side, are opened on the surface of the substrate 13, and are fitted into the locking holes 13a. 1
Reference numeral 4 denotes a rotating pin that forms an electrode. This rotating pin 1
Reference numeral 4 denotes a structure in which the base 13 is connected to the fixed cylinder 5 via the cylinder shaft 12 of the spacer 10. In this embodiment, the rivet fixed to the surface of the substrate 13 is fixed. The spacer 10 is fixed to the insulating plate 15 fixed to the inner end of the opening of the tube 5 by caulking, and the spacer 10, the substrate 13 fixed on the spacer 10, and the rotation fixed to the substrate 13 outside the opening end of the fixed tube 5. All of the pins 14 are rotatably fixed. Reference numeral 16 denotes a resin washer that insulates between the fixed cylinder 5 and the end of the rotating cylinder 7.

On the other hand, the rotary cylinder 7 is formed by forming two steps of first and second steps 7a and 7b of which the diameter gradually decreases in the direction of the tip inside the rotary cylinder 7, and the step on the connecting portion side to the fixed cylinder 5 is formed. 7a
Is the outer peripheral portion of the substrate 13 and the stepped portion 7b is the substrate 13
The light source 6 fixed above, that is, the flange portion of the light emitting diode comes into contact with the light source. A terminal 17 on the fixed cylinder 5 side, which will be described later, is engaged with the inner surface of the first stepped portion 7a of the rotating cylinder 7.
In addition, the electrode portions 18, 18 that are in electrical contact with each other are bulged, and the outer periphery of the spacer 10 and the substrate 13 formed so as to match the inner peripheral cross-sectional shape of the first step portion 7 a are formed. Since it is engaged and fixed to the inner surface of the first step portion 7a,
By rotating the rotary cylinder 7 forward and backward, the spacer 10 and the substrate 13 can be integrally rotated. In this embodiment, the rotating cylinder 7 is appropriately fixed cylinder 5
It can be detached from the spacer 10 and the substrate 13 fixed to the side. Tube shaft 1 of fixed tube 5
A pair of the terminals 17, 17 are attached to the outer peripheral portion of the device 1. The terminal 17 is, Yes formed Yamagata shape so as to protrude toward the outer circumference of the cylindrical shaft 11, to form both end portions 1 7 a, 1 7 a formed bent in a hook shape on the outer circumference direction of the cylindrical shaft 11 Attached to the slits 19, 19 so that they can be inserted and removed freely,
It is interposed between the spacer 10 and the resin washer 16, and its top 17 b is projected in the inner circumferential direction of the rotary cylinder 7. The top portion 17b is provided at a predetermined rotation position with the rotating cylinder 7.
Are engaged with the electrode portions 18 formed on the inner surface of the electrode portion and are hooked on the concave grooves 18a formed on the electrode portions 18 , and in this state, the fixed cylinder 5 and the rotating cylinder 7 are electrically connected. In this conductive state, the rotation of the fixed cylinder 5 and the rotary cylinder 7 is prevented, and the ON state of the switch mechanism can be maintained.

In the present embodiment, the inside of the distal end of the shaft 1 is configured to be used as a battery case. As shown in FIG. Alternatively, a partition rod is inserted and fixed, and a coil spring 21 is interposed between the bottom partition plate 20 and the batteries C, C housed in the battery case side. Also, in the cylinder of the shaft 1,
It is also possible to house a separate battery case having an outer diameter smaller than the inner diameter of the shaft 1 and made of a conductive member such as metal formed in a bottomed cylindrical shape. In this case, a flange is formed at the opening of the battery case, and the flange is stopped at the opening edge of the shaft 1 to prevent the battery from dropping into the inner part of the shaft 1. In addition,
In the above embodiment, the terminal 17 is configured on the fixed cylinder 5 side, and the electrode portion 18 is configured on the rotary cylinder 7 side. However, on the contrary, the terminal 17 is configured on the rotary cylinder 7 side. It is needless to say that the same effect can be obtained even if the electrode portion 18 is formed on the fixed cylinder 5 side.

FIGS. 4 and 5 show the operation of the rotary switch mechanism of the golf swing training device in the first embodiment. When the switch mechanism is in the OFF state, as shown in FIG. 4, it is fixed to the recessed grooves 18 a, 18 a of the respective electrode portions 18, 18 formed on the inner peripheral wall of the rotating cylinder 7 and to the cylinder shaft 11 of the fixed cylinder 5. Of the terminals 17, 17
b does not contact, and the light source 6 does not light. On the other hand, when the switch mechanism is in the ON state, as shown in FIG. 5, the rotating cylinder 7 is rotated clockwise by about 90 degrees (direction of arrow R) or counterclockwise (arrow L).
Are rotated in the direction), electrically conductive top 17 b is fitted in the rotary cylinder 7 side of the electrode portion 18 of the groove 18a in the fixed barrel 5 side terminal 17, for supplying power to the light source 6 . In this embodiment, since the direction of rotation of the switch mechanism is different from the direction of action of centrifugal force due to the swing of the golf club, electrical contact failure may occur even if centrifugal force is applied to the switch mechanism. Absent.

When a golf swing practice device having the above structure is used, it is sufficient to hold the grip 2 and practice the swing as it is when practicing a swing using a normal golf club. It is possible to confirm whether or not the user swings in a correct form based on the trajectories of light from the light emitting units 3 and 4.

FIGS. 6 and 7 relate to a second embodiment of the golf swing practice device according to the present invention, in which the terminals of the fixed cylinder constituting the rotary switch mechanism are separated from and connected to the inner end face of the rotary cylinder. The configuration is different from that of the first embodiment. In the second embodiment, a pair of terminals 22 projecting toward the rotating cylinder 7 in the axial direction are provided at the bottom of the fixed cylinder 5.
22, a cylindrical spacer 24 having a flange 23 formed so as to cover a portion where the terminals 22, 22 are formed.
Is rotatably inserted freely. This spacer 24
It can be rotated together with the transfer cylinder 7
You. A hole 25 having a size that allows the tips of the pair of terminals 22 to protrude appropriately is formed in the bottom end surface of the spacer 24. The hole 25 has a shape in which two arc-shaped holes are connected and integrated along the rotation center axis of the spacer 24, and is rotated about 90 degrees in the circumferential direction of the spacer 24 so that the terminals 22, 22 are rotated. Is aligned with the conduction of the hole 25, the tips of the terminals 22, 22 protrude from the hole 25, and when the spacer 24 is further rotated about 90 degrees, the tips of the terminals 22, 22 pass through the bottom of the spacer 24. The tip of the terminal 22 is shared with the rotary cylinder 7.
It is preferable that the terminal is formed in a mountain shape so as not to be caught by the edge of the hole 25 of the spacer 24 which rotates.
If the tips of 2, 2 are formed in the shape of a mountain, electrical contact can be reliably made. That is, the tip of the terminals 22 and 22, when projecting from the hole 25 of the spacer 24, in contact with the opening end surface of the rotary cylinder 7 Yes configured so as to be electrically conductive, through constantly insulating plate 26 rotates Tube 7 and fixed tube 5
The rotary cylinder 7 is drawn toward the fixed cylinder 5 by a coil spring 28 that is bridged between the substrates 27 formed on
The switching operation is performed between the rotating cylinders 2 and 22 and the opening end face of the rotary cylinder 7 . Reference numeral 29 denotes an insulating plate 26 on the side of the rotating cylinder 7 on which the light emitting element 6 is mounted on the front side, and a stationary cylinder 5
A rotary pin that connects between the substrates 27 on the side and performs electrical conduction. The end on the substrate 27 side moves back and forth in response to the switch operation, and absorbs the stroke of the rotary pin 29 in the fixed cylinder 5. It is configured to be able to do.

FIGS. 8 and 9 show the operation of the rotary switch mechanism of the golf swing training device according to the second embodiment. When the rotary switch mechanism is in the OFF state, as shown in FIG. 8, the terminals 22, 22 formed in the fixed cylinder 5 are located inside the bottom of the spacer 24. Does not come into electrical contact with the opening end face of the rotary cylinder 7, and the light source 6 does not turn on. On the other hand, when the rotary switch mechanism is turned on, as shown in FIG. 9, the rotary cylinder 7 is rotated clockwise or counterclockwise by about 90 degrees so that the opening end face of the rotary cylinder 7 and the fixed cylinder 5 side. Terminals 22, 2
Spacer 24 that prevents electrical contact with
, The terminals 22, 22 are moved to the positions of the holes 25 formed in the spacers 24, and the ends thereof are protruded from the holes 25 to be electrically connected to the rotary cylinder 7 to supply power to the light source 6. I do. As described above, since the direction of rotation of the switch is different from the direction of action of the centrifugal force due to the swing of the golf club, even if a centrifugal force is applied to the switch, no failure occurs in the electrical contact.

[0020]

[Effect of the Invention] The golf swing practice device according to the present invention is:
With the configuration described above, since the light emitting unit is configured integrally with the rotary switch and the light source, handling of the switch becomes easy, and even if centrifugal force acts on the rotary switch during golf swing practice. In addition, the occurrence of failure such as poor electrical contact of the switch is eliminated.

Further, since the housing serving as the light emitting section is securely screwed to the shaft, the light emitting section does not fall off the shaft, and the swing practice can be performed safely. In addition, the workability of assembling to the shaft is improved, and the light emitting unit can be replaced together with the housing even if the light emitting unit breaks down, and the effect after implementation of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view showing a golf swing practice device according to the present invention.

FIG. 2 is a front sectional view showing a light emitting unit on a grip side of the golf swing training device.

FIG. 3 is an exploded perspective view showing a light emitting unit.

FIG. 4 is an enlarged sectional view showing an OFF state of a rotary switch mechanism.

FIG. 5 is an enlarged sectional view showing an ON state of a rotary switch mechanism.

FIG. 6 is a front sectional view showing a second embodiment of the present invention.

FIG. 7 is an exploded perspective view showing a light emitting unit according to the second embodiment of the present invention.

FIG. 8 is an enlarged sectional view showing an OFF state of the rotary switch mechanism according to the second embodiment of the present invention.

FIG. 9 is an enlarged sectional view showing an ON state of a rotary switch mechanism according to a second embodiment of the present invention.

FIG. 10 is a front view showing a conventional golf swing practice device.

FIG. 11 is an enlarged cross-sectional view of a light emitting unit of a conventional golf swing practice device.

FIG. 12 is an enlarged sectional view showing another embodiment of the switch mechanism of the conventional golf swing practice device.

FIG. 13 is an enlarged sectional view showing another embodiment of the switch mechanism of the conventional golf swing practice device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft 2 Grip 3 Light emitting part (grip side) 4 Light emitting part (tip part) 5 Fixed cylinder 6 Light source 7 Rotating cylinder 17 Terminal 18 Electrode part

Claims (2)

(57) [Scope of request for utility model registration] 1. A golf swing training device comprising a light-emitting portion provided on a grip side and a distal end side of a shaft, wherein each of the light-emitting portions is detachably connected to the shaft. disc-shaped scan of insulated against the fixed tube
A rotatable connection via a pacer, and a conductive rotating cylinder containing a light emitting diode, and a contact formed on the inner peripheral surface of the rotating cylinder, and the fixed to the contact. A rotary switch mechanism is configured such that a terminal configured to protrude in the circumferential direction of the cylindrical shaft end surface of the cylinder is separated from and connected to perform a switching operation between the rotating cylinder and the fixed cylinder. Golf swing practice device. 2. A golf swing training device comprising a light-emitting unit on each of a grip side and a distal end side of a shaft, wherein each of the light-emitting units is detachably connected to the shaft. cylindrical space to insulate against the fixed tube
A terminal that protrudes toward the rotary cylinder side at the bottom of the fixed cylinder, and is connected to the conductive rotary cylinder that houses the light emitting diode and that is rotatably connected via a rotor. the <br/> spacer holes were partially formed capable of loosely inserted rotatably on the bottom of the fixed cylinder, by rotating the said rotary cylinder by shifting the position of the spacer in contact terminal away A golf swing training device comprising a rotary switch mechanism configured to perform a switching operation between a fixed cylinder and a rotating cylinder.