JPH0428608Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a tennis practice tool that is equipped with a mirror on the back of the support frame and allows the user to check the stroke form when hitting a ball with a tennis racket. .

(Prior Art) Recently, the number of people playing tennis has been increasing, which is called a tennis boom, and along with this, tennis courts are being constructed in various places. However, the expansion of tennis courts has not kept up with the rapid increase in the number of tennis players, and as a result, for example, tennis schools are overflowing with trainees, making it difficult to sufficiently practice strokes and the like.

Therefore, various tennis practice tools have been proposed that allow players to master strokes and the like without actually going out on the court.

This type of tennis training device has a structure in which both ends of a string, which is inserted through a ball, are attached to the upper and lower sides of a support frame having a triangular front shape, for example, via attachment fittings.

(Problems to be solved by the invention) However, such tennis practice equipment allows strokes, etc., to be practiced simply by repeatedly hitting a ball attached to a string. When practicing the basic backhand or forehand stroke form according to the basic form, the practitioner cannot check whether or not the form is actually performed according to the basic form, and since it is impossible to check, the basic form It is difficult to learn strokes with a form that is true to the original, which is not desirable.

Therefore, the purpose of the present invention is that by providing a mirror on the back of the support frame, it is possible to reflect the form of backhand strokes, forehand strokes, etc. on the mirror, and also to confirm the form and make corrections according to the basic form of the form. To provide a tennis training tool that can be easily performed and allows one to learn strokes in a form that follows the basic shape.

(Means for Solving the Problems of the Invention) The present invention for achieving the above object has a pair of left and right first holes at the upper and lower parts of the back surface of the support frame 4, respectively.
A locking portion 5 composed of a locking portion 7 and a second locking portion 8
In addition, a mirror 6 is provided which is locked via the locking portion 5 so as to be able to swing freely in the left and right directions.

(Example) An example of the present invention will be described below based on the accompanying drawings.

Fig. 1 is an external configuration diagram of the tennis practice equipment according to the present invention, Fig. 2 is a partial side view of the practice equipment showing the mounting state of the mirror according to the present invention, and Fig. 3 is the oscillating state of the mirror. It is a partial plan view of the exercise tool shown.

Reference numeral 1 denotes a practice tool consisting of an elastic string 3 through which a ball 2 is inserted, and a support frame 4 to which both ends of the string 3 are attached via a mounting bracket 3a and a slide rope 3b. is its support frame 4
A locking portion 5 provided on the back surface of the frame body 4 is provided on the back surface, and a mirror 6 is provided that is locked to the locking portion 5. As shown in FIG. 1, the support frame 4 has a generally triangular shape when viewed from the front, and is composed of left and right pipes 4a, 4a, which are long in the vertical direction. , 4a are provided with reinforcing materials 4b, 4c between the upper and middle portions of the pipes 4a, 4a.
It is installed horizontally with respect to a.

The locking portion 5 is attached to the support frame 4 as shown in FIGS.
A first locking portion 7 provided at the upper rear surface of the frame body 4 where the reinforcing material 4b of the support frame 4 is interposed, and a second locking portion provided at the center portion of the back surface of the frame body 4 where the reinforcing material 4c of the support frame body 4 is interposed. Consists of 8. As shown in FIG. 2, the first locking portion 7 includes a pair of base members 7a, 7a that are substantially trapezoidal in side view and protrude from the upper back surfaces of the left and right pipes 4a, 4a. The base materials 7a, 7 are placed on the side surface of 7a.
A pair of guide members 7b, 7 protruding in the same direction as a
bIt is installed protrudingly. These guide members 7b, 7b are
These members are substantially rectangular in side view and curve in directions opposite to each other (see FIG. 3), and each member has guide holes (see FIG. 2) 7c and 7c on the side surface of the member along the longitudinal direction of the member. An engaging member 7f is provided which has convex portions 7d, 7d that loosely fit into the guide holes 7c, 7c, and recessed portions 7e, 7e that sandwich a mirror 6, which will be described later, from both sides. Further, the second locking portion 8 includes a pair of angle plates 8a, 8 which are approximately L-shaped when viewed from the side, at the center of the back surface of the left and right pipes 4a, 4a, as shown in FIG.
A is provided protrudingly, one end is fixed to the plates 8a, 8a, and the other end is fixed to the plates 8a, 8a.
Thick plates 8b, 8 which are rectangular in side view and protrude in the same direction as
b. The thick plates 8b, 8b have guide holes 8c, 8c bored in the upper surfaces of the members along the longitudinal direction of the plates 8b, 8b, convex portions 8d, 8d loosely fitted into the guide holes 8c, 8c, and mirrors to be described later. An engaging member 8f having concave portions 8e, 8e for sandwiching the bottom surface of 6 is provided.

The mirror 6 is a substantially trapezoidal plate in a front view, which is almost similar to the shape of the support frame 4 when viewed from the center to the top, and has a reflective surface on the front side of the tennis practice tool 1, as shown in FIG. The left and right lower ends of this plate mirror are fitted into the recesses 8e, 8e of the engaging members 8f, 8f of the second locking part 8, respectively (see Fig. 2), and are held. Both ends of the top are the first
Recesses 7e, 7e of engagement members 7f, 7f of locking portion 7
(see Fig. 3) and is held between the mirrors 6 and 4, which face the support frame 4 from the center of the back to the upper part of the back.
They are lined up on the back.

Next, the operation of the above embodiment will be explained with reference to FIGS. 2 and 3.

First, the protrusion 7d of the engagement member 75 on the left side in the figure of the first locking part 7 and the protrusion part (not shown) 8d of the left side engagement member 8f of the second locking part 7 are connected to the guide member on the left side in the figure. 7b along the guide hole 7c of the guide member 7b and the guide hole (not shown) 8c of the left thick plate 8b in the direction of arrow A in FIG.
The protrusion 7d of the engagement member 7f on the right side in the figure of the locking part 7 and the protrusion 8f of the engagement member 8f on the right side of the second locking part 7 are connected to the guide hole 7c of the guide member 7b on the right side in the figure and the thick plate on the right side. 8b along the guide hole 8c in FIG.
By sliding the mirror 6 in the direction perpendicular to the longitudinal direction of the base materials 7a, 7a of the first locking part 7 and the angle plates 8a, 8a of the second locking part 8 (the third The mirror 6 can be swung (tilted) from the position shown in FIG. Slide the parts 7d, 8d in the direction of arrow C in FIG.
If the mirror 6 is slid in the direction shown in FIG.

As a result, the tennis practice device 1 of the present invention can reflect the form of a backhand or forehand stroke when hitting the ball 2 of the practice device 1 on the mirror 6, so that it is possible to check whether the form is performed according to the basic shape. You can check and
Since the mirror 6 can be swung to any angle, the practitioner can check the form of each part (for example, the movement of the limbs) in detail, and can therefore check the form that follows the basic shape. Modifications can be easily made and backhand or forehand strokes can be fully learned in a form that follows the basic shape. It should be noted that the second locking portion 8 in the above embodiment is connected to the reinforcing material 4c.
It may be provided on the back surface to hold the bottom of the mirror 6.

(Effects of the invention) As is clear from the above explanation, according to the invention,
A pair of left and right locking parts are provided at the upper and lower parts of the back of the support frame, and these four locking parts support the mirror so that it can swing from side to side, so the mirror can be stably supported. This reduces the possibility that the mirror's direction will change due to vibrations, etc. Furthermore, by providing this mirror, it is possible to reflect the form of a backhand stroke, forehand stroke, etc. on the mirror, and it is also possible to easily confirm the form and make corrections according to the basic shape of the form. It has effects such as being able to learn strokes.

[Brief explanation of drawings]

Figure 1 is an external configuration diagram of tennis practice according to the present invention, Figure 2 is a partial side view of the practice equipment according to the present invention showing how the mirror is attached, and Figure 3 is a diagram showing the mirror in its swinging state. FIG. 3 is a partial plan view of the training tool. In addition, in the drawing, 1 is a tennis practice tool, 4 is a support frame,
5 is a locking part, 6 is a mirror, 7 is a first locking part, 8 is a second locking part
It is a locking part.

Claims (1)

[Scope of utility model registration request] A tennis training device in which a string passed through a ball is attached to a support frame, wherein a pair of left and right first and second locking parts are provided at the upper and lower parts of the back surface of the support frame, respectively. A tennis practice tool characterized by being provided with a mirror that is locked so as to be swingable in left and right directions via a locking part.