JPH01178275A - Swing trainer for golfing - Google Patents

Abstract

PURPOSE:To self check whether swing of the golf player accurately hits the ball by a swing trainer wherein pref. a switch cap is rotatably screwed in a battery case, a spring is interposed between an electric light bulb and batteries, and the positive pole terminal of the electric light bulb and the positive pole of the batteries come into contact or separate from each other. CONSTITUTION:An electric lamp circuit is open when the positive pole terminal 19b of an electric light bulb 19 is apart from the positive pole 6a of batteries 6. When a switch cap 11 is rotated against the elasticity of a spring 16 to bring the positive pole terminal 19b into contact with the positive pole 6a of the batteries 6 with pressure, the electric lamp circuit is closed to light the electric light bulb. The resultant light beam is radiated from the opening 14 of the switch cap 11 to the extensional direction of a shaft 1. When a grip 2 is held and a trainer is swung, both batteries 6 are moved ahead within a battery case 7 against the elasticity of the spring 16 by the centrifugal force. The positive pole 6a then comes into contact with the positive pole terminal 19b, and the electric lamp circuit is closed to light the bulb. When the swing is relatively weak or it is stopped, the expansion elasticity of the spring 16 moves both batteries 6 backward to open the electric lamp circuit and put out the bulb.

Description

Detailed Description of the Invention (+) Object of the Invention (Industrial Application! 7) The present invention relates to a so-called golf swing trainer for practice swinging with a golf club.

(Prior art and problems) Conventionally, at the tip of a relatively short shaft with a grip,
A golf swing trainer is known that is equipped with weights having ff (n) to maintain proper balance during the swing.

However, according to the known trainer, although the practice swing motion of the golf club itself has an effect, it is difficult to determine whether or not the swing is made properly, that is, the tip of the trainer, which corresponds to the club head, follows an appropriate trajectory. Since it is not possible to visually check whether or not the trainer is swinging to hit the golf ball accurately, it is difficult to expect much improvement in the effectiveness of the training.

Therefore, an object of the present invention is to provide a swing trainer for golf that can solve the above-mentioned problems by providing an electric light means at the tip of the shaft.

(2) Structure of the Invention (Means for Solving Problems) The present invention provides an electric light means at the tip of a shaft having a grip, and irradiates an electric light beam from the tip of the means in an extending direction of the shaft. By configuring this, the above problem can be solved.

More specifically, the present invention includes a battery case provided at the tip of a shaft having a grip, a battery housed in the case, and a switch cap attached to the case. An electric circuit is formed between them, and the light beam of the light bulb is irradiated from an opening provided at the tip of the cap in the direction of extension of the shaft.

Further, in the present invention, preferably, the switch cab is rotatably screwed into the battery case, a spring is interposed between the light bulb and the battery, and the cap is rotated to connect the light bulb. The lighting circuit is opened and closed by connecting and separating the positive terminal and the positive electrode of the battery, and an exterior head that covers the battery case and at least a part of the switch cap is attached to the tip of the shaft. .

(Example) In FIG. 1, a shaft l is shorter than that of a normal golf club, and a grip 2 is attached to the base end of the shaft l, and an electric light means 3 and an exterior head 4 are attached to the tip. .

In FIG. 2, a connecting tube 5 is fitted to the tip of the shaft 1, and a cylindrical electrically insulating battery case 7 for storing a battery 6 is fitted to the tip of the connecting tube, and the overlapping area is The connecting bottles 8 and 9 are fixedly attached. A lead piece 10a, which is a conductive plate spring, is placed on the bottom surface of the battery case 7, and is in elastic pressure contact with the negative electrode of the battery 6 at all times. The contact portion 10c is placed along the edge of the case and bent into a circular arc shape. A cylindrical switch cap 11 is attached to the outer periphery of the tip of the battery case 7, and these screws 12.
They are screwed together via 13 so that they can rotate forward and backward. A socket 1 is installed in the small diameter part near the opening 14 of the switch cap 11.
The large diameter portion 15a of No. 5 is fitted therein. A conductive coil link 16 is interposed between the rear end surface of the large diameter portion 15a of the socket 15 and the front end surface of the battery 6, excluding the positive electrode 6a of the battery. The contact portion 11c of the lead piece 11b is elastically pressed against the contact portion 11c. A ring 17 for rotational operation and displaying a dial scale that serves as a non-slip device is integrally fitted onto the outer periphery near the tip of the switch cap 11.

In FIG. 3, the socket 15 has a reflector 18 fitted therein, in the center of which is a small light bulb, preferably of a vibration-resistant, high-luminance type, e.g. an iodine bulb. , a Cassenon light bulb or a krypton light bulb 19 is screwed into the reflector, and a lens 20 is fitted to the tip surface of the reflector. The positive terminal 19a of the light bulb 19 and the positive terminal 19b provided on the rear end surface of the small diameter portion 15b of the socket 15 are connected with a conductive wire 19c, while the negative terminal 21a provided on the outside of the reflector and the large diameter portion of the socket 15 are connected. A conductive wire 21c is connected to a negative terminal 21b provided on the rear end surface of the diameter portion 15a, and the coil spring 16 is constantly pressed into contact with the negative terminal 21b.

Again, in FIG. 2, the outer head 4 integrally attached to the tip of the shaft 1 is preferably made of an elastic material, such as rubber or synthetic resin, and has four parts 22 that allow the switch cap 11 to move. It has the functions of a weight for swing balance and buffer protection for the electric light means 3 and the object.

In addition, in the illustrated embodiment, the negative electrode side of the lighting circuit is
As described above, the contact portion 10c of the lead piece lOb is configured to be in contact with the spring 16, and the spring is in contact with the negative terminal 21b provided on the socket 15. However, the present invention can also be configured such that the tip of the lead piece 10b is always in contact with the negative terminal 21b without using the splinter 16. In this case, the spring 16 can be made non-conductive. Therefore, the present invention is not limited to making the spring 16 part of a lighting circuit.

Next, the function of the above structure will be explained. As shown in FIG. 2, when the positive terminal 19b of the light bulb 19 and the positive terminal 6a of the battery 6 are separated, the lamp circuit is in an open state. Rotate the switch cap 11 against the elasticity of the spring 16 to connect the positive terminal 19b to the positive terminal 6 of the battery 6.
When it is pressed into contact with the switch cap 11, the light circuit is closed, the light bulb lights up, and the light beam is emitted from the opening 14 of the switch cap 11 in the direction in which the shaft l extends.

Furthermore, when the trainer of the present invention is swung by gripping the grip 2 while the light circuit is open as shown in FIG. When the positive electrode 6a comes into contact with the positive terminal 19b, closing the lighting circuit and turning off the light, on the other hand, when the swing is relatively weakened or stopped, both batteries 6 move backward due to the expansion elasticity of the spring 16. , the negative terminal 19b and the positive terminal 6a are separated, the lighting circuit is opened, and the light is turned off. Incidentally, as described above, even when both batteries 6 move forward and backward within the battery case 7, the lead piece 10a contacts the negative electrode of the rear battery 6 due to its elasticity, and the lead piece 10b Needless to say, the contact portion 10C is in contact with the splinter 16, and the spring is in contact with the negative terminal 19b provided on the socket 15.

(3) According to the trainer of the present invention, which has a configuration and function that exceed the effects of the invention,
It has the following effects.

a. When the circuit of the electric light means is closed, a beam of light is emitted from its tip in the direction of extension of the shaft. Therefore, for example, when you swing indoors, the trajectory of the light rays moves on the floor or wall.

It is clearly projected onto the ceiling, allowing you to see how the tip of the trainer draws and follows the light trail. Therefore, even with a short shaft like this type of trainer, you can effectively practice while getting a feeling almost similar to swinging with a regular long golf club. For example, you can set up your own checkpoints on the floor or wall, or place a golf ball on the floor.
Swing so that a light trail passes over that point or the ball, and you can check whether your swing is good or bad without directly hitting the ball.

b. Furthermore, according to the present invention, when the switch cap is rotated and the positive terminal of the light bulb held in the cap is separated from the positive terminal of the battery in the battery case, and it is swung relatively strongly, the Centrifugal force causes the terminal to come into contact with the positive electrode, closing the lighting circuit.On the other hand, when the terminal is swung relatively weakly, the lighting circuit opens without the centrifugal force being strong enough. Therefore, if the interval between the terminal and the positive electrode is adjusted by the rotation operation, that is, if the interval is increased, the bulb will not light up unless it swings relatively strongly, and if the interval is decreased, the bulb will not swing as strongly. The light bulb will light up even if you don't, and depending on how small the interval is, the light bulb will not light up. Therefore, by making such adjustments, you can make practicing your swing strength more effective.

C1 The above effect can never be obtained from this type of trainer known in the art.

In addition, hitting a golf ball with an actual golf club requires a large space and generates a sound when the ball is hit. However, according to the trainer of the present invention, it is possible to achieve a swing practice effect similar to that of hitting a golf ball in a relatively narrow space without making such a hitting sound. It is extremely useful as a

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of an embodiment of the trainer of the present invention. Second
The figure is a cross-sectional view of the tip of the trainer. FIG. 3 is a sectional view of the light bulb section. l: Shaft, 2 nigerips, 3 near 1! Light means, 4:
Exterior head, 6: battery, 6a: positive electrode, 7: battery case,
10a, 10b: Lead piece, 10c: Contact part of lead piece, 11: Switch cap, 14: Opening, 15: Socket, 16: Splinter, 19: Light bulb, 19b: Terminal agent Yoshiharu Shirahama, patent attorney 1 figure

Claims (4)

[Claims] (1) A swing trainer for golf, characterized in that an electric light means is provided at the tip of a shaft having a grip, and the electric light beam is emitted from the tip of the means in an extending direction of the shaft. (2) A light circuit comprising a battery case provided at the tip of a shaft having a grip, a battery housed in the case, and a switch cap attached to the case, and a light circuit constructed between the light bulb and the battery. , and a golf swing trainer characterized in that the light beam of the light bulb is irradiated from an opening provided at the tip of the cap in the extending direction of the shaft. (3) The switch cap is screwed into the battery case so that it can rotate forward and backward, a spring is interposed between the light bulb and the battery, and the cap is rotated to connect the positive terminal of the light bulb with the switch cap. The golf swing trainer according to claim 2, wherein the lighting circuit is opened and closed by connecting and disconnecting the positive electrode of a battery. (4) The golf swing trainer according to claim 2 or 3, wherein an exterior head that covers the battery case and at least a part of the switch cap is attached to the tip of the shaft.