JPH1147338A - Sweet spot sensor device for racket and sensor alone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a player to check a sweet spot in terms of a visual angle, auditory sensation and tactile sense by mounting a sweet spot sensor device formed by connecting several pieces of sensors to a net form with several pieces of stretchable cords on the one gut surface of a racket. SOLUTION: Four pieces of the mounting cords 6 of the net-like sweet spot sensor device 4 are mounted by means of fasteners 7 of the gut 2 of the racket. At the time of using the racket mounted with the sweet spot sensor device 4, a player holds the racket in such a manner that the sensor device 4 comes to the rear surface of a ball hitting surface. When a ball hits the inside of a sweet spot range at the time of hitting the ball, the gut 2 is vibrated by the impact thereof and vibration is transmitted to the sweet spot sensor device 4 mounted on the rear surface, by which several pieces of the hollow structure sensors 8 of the sweet spot sensor device 4 are vigorously collided with the gut surface and a nimble crack is generated. Vibration resonance plates 9 in the sensors having a hollow structure are simultaneously resonated to amplify the vibration and sounds are produced as the nimble cracks.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to the back surface of the gut surface of various racquets such as hard tennis, soft tennis, racket pole, squash, badminton, etc., and vibrates when hit at a set sweet spot to generate a pleasant sound. The present invention relates to a practice sweet spot sensor device for racket competition.

[0002]

2. Description of the Related Art In recent years, anyone using a racket such as hard tennis or a racket ball can be easily enjoyed and popular. The basic sport in which a racket is used is to hit a ball at a portion called a sweet spot almost at the center of the gut of the ball striking surface of the racket. When hitting at this sweet spot, the ball is the most powerful and the ball and shuttle can be controlled. However, always hitting at the sweet spot is not easy for beginners as well as intermediate and advanced players, and it is often difficult to know which part of the gut hit the ball or shuttle. Obstacles.

As a method for solving this problem, a small microphone, an amplifier, a speaker, etc. are built in and a racket which generates a pleasant sound when hit with a hitting surface, or a device which detects a hitting sound with a microphone and wirelessly monitors an output signal thereof (for example, 56-75975), a device for detecting with a pressure sensor (for example, Japanese Patent Publication No. 60-198168),
A racket or a pleasant sound generation sheet that generates a pleasant sound by attaching a sheet with an adhesive tape (for example, Japanese Utility Model 4-4324)
1) There is a pressure-sensitive coloring sheet (for example, Japanese Utility Model Laid-Open No. 7-43591) that determines the hitting point by color.

[0004]

However, the racket and the volume amplifying device have a problem that the weight is increased and various functions such as resilience, controllability, and ease of spin are impaired. This is because weight reduction is important for improving racket functions and performance.

[0005] These devices have not been put into practical use because of the manufacturing cost, inconvenience of mounting, problems of the size and shape of the device, and the inability to easily attach and detach the racket used by the user.

Since the pleasant sound generating sheet is stuck to the end of the gut, it is difficult to visually confirm the range of the sweet spot instantaneously, and the pressure-sensitive coloring sheet is stuck directly to the sweet spot portion to prevent air resistance. As a result, blurring occurs, and it is difficult to maintain an accurate swing trajectory. A sheet or the like adhered with a tape has drawbacks that it cannot withstand repeated use of sticking and peeling, and that the area of the sweet spot cannot be freely changed.

In view of the above-mentioned problems, the present invention enables a sweet spot to be visually, audibly and tactilely confirmed, and allows the area of the sweet spot to be freely adjusted and adjusted in accordance with any technical level. It is an object of the present invention to provide a sweet spot sensor device and a sensor unit which are small, lightweight, portable, easy to attach and detach, and can be used repeatedly regardless of the size of a maker or a racket.

[0008]

As a means for solving the above-mentioned problems, the present invention solves the above-mentioned conventional problems by attaching a net-like sweet spot sensor device to one gut surface of a racket. is there.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view showing an embodiment when a sweet spot sensor device is attached.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG.
The four attachment cords (6) of the sensor device (4) are attached to the gut (2) of the racket with the fasteners (7).

When using a racket to which the sweet spot sensor device (4) is attached, hold the sweet spot sensor device so as to come to the back of the hitting surface.

When a ball or shuttle hits within the sweet spot area at the time of hitting the ball, the gut (2) vibrates due to the impact, and the vibration is transmitted to the sweet spot sensor device (4) mounted on the back surface, as shown in FIG. The plurality of hollow structure sensors (8) of the sweet spot sensor device in the above violently collide with the gut surface and generate a pleasant sound.

At the same time, the vibration resonance plate (9) inside the hollow sensor shown in FIG. 3 resonates and amplifies the vibration, and is connected by the elastic string (5) shown in FIG. The vibration resonance plate of another sensor also resonates, and as the whole sweet spot sensor device connected by the connecting string amplifies the vibration, a pleasant sound is generated by a plurality of sensors and the volume increases.

In FIG. 1, the vibration amplified throughout the sweet spot sensor device is transmitted to the hand holding the racket through the gut (2), the frame (1), and the grip (3).

If a ball or shuttle hits outside the sweet spot range, the sensitivity of the sweet spot sensor is weak, so the sound of the sensor is low, the vibration is small, and the feeling transmitted to the hand holding the racket is weak. You can clearly see that you hit with no hit points.

[0016]

In the sweet spot sensor device according to the first aspect of the present invention, when a ball is hit within the sweet spot range, the gut vibrates due to the impact, and the sweet spot sensor device attached to the back surface vibrates. Transmitted,
The sensor according to claim 2 violently collides with the gut surface to generate sound, and at the same time, the vibration resonance plate inside each sensor of the hollow structure according to claim 3 resonates to amplify the sound and generate a pleasant sound. The sweet spot can be confirmed.

The entire attached sweet spot sensor device is colored red, blue, yellow, green, orange, black or the like so that the range of the sweet spot can be visually confirmed.

In the sweet spot sensor device according to the first aspect, as shown in FIG. 2, each sensor (8) and the sensor (8) are connected by an elastic string (5), so that the sweet spot is within the range of the sweet spot. Can be freely deformed and adjusted, such as a square, a rectangle, and a rhombus, by simply enlarging or changing the mounting method as shown in FIG. 4 according to the technical level.

Furthermore, the sweet spot sensor device can be set at any position so that the sweet spot position can be adjusted. In addition, the sweet spot position can be adjusted, and a special racket is not required. In addition, the sweet spot sensor device is easy to mount, small in size, light in weight, and easy to put on and take off.

By practicing stroke, serve, and volley by attaching a sweet spot sensor device, it is possible to visually, aurally, and tactilely determine whether or not the ball is hit at the sweet spot. It can be used in a wide range of sports, from beginners to advanced players, and helps to improve the technical level in racket competition.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of a sweet spot sensor device.

FIG. 3 is a sectional view of a sensor alone.

FIG. 4 is an arrangement diagram of a sensor.

[Explanation of symbols]

 Reference Signs List 1 frame 2 gut 3 grip 4 sweet spot sensor device 5 connecting cord 6 mounting cord 7 fastening 8 sensor unit 9 vibration resonance plate

Claims (3)

[Claims] 1. A plurality of sensors are connected in a net-like manner with a plurality of stretchable strings within a sweet spot range of a racket in which a gut is stretched on an intersection inside a frame of the racket to form a hitting surface. A net-shaped sweet spot sensor device having an area of 25 to 200 cm, wherein the sweet spot sensor device thus configured is fixed to the gut with fasteners attached to at least three or more attachment strings. 2. The method according to claim 1, wherein the sensor is made of a material such as reinforced plastic, light alloy, or ceramic, and has at least three or more sensors and is connected in a mesh by a plurality of elastic cords. The sensors that make up the sweet spot sensor device. 3. A single sensor having a hollow structure having a vibration resonance plate such as metal or glass fiber inside the sensor according to claim 2.