JP2005058703A - Table tennis racket and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a table tennis racket, gentle for hands and comfortable, permitting sufficiently utilization of the function of five fingers, especially a forefinger and also the function of a wrist to make the movement of an arm flexible in a large form so that a ball can be hit in an accurate and well-controlled form, and allowing a beginner or a person rehabilitated by playing table tennis to easily handle the racket. <P>SOLUTION: A constriction is formed between the hitting face and a grip of the table tennis racket, and holes for inserting four fingers are formed in the grip. The hole for the forefinger is formed around the first joint, and the holes for inserting the remaining three fingers are formed around the second joint. The grip has a stream-faced shape with a part corresponding to the inner side of the third joint of the middle finger being the thickest, and a hole with appropriate size and shape is formed at the center of the grip. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a table tennis racket.

Conventional table tennis rackets include pen holders, shake hands, and egg-shaped ones, and the egg-shaped one has a hole through which four fingers pass, so that it is easy to grasp the grip firmly and feel like hitting with a palm. Nevertheless, shake hands are generally popular, and have the advantage of simple structure and low cost.
Utility Model Gazette "Actual 6-30212"

The conventional table tennis racket is just a grip, and it does not have a structure that can fully demonstrate the functions of the fingers of the hand, but the wrist is tired, the palm sweats, and only the movement of the arm I had to rely on it to hit the ball. Furthermore, since the ball striking surface opens about 20 degrees outward from the center axis direction of the arm, it is difficult to handle for beginners and those who rehabilitate by table tennis, such as being unable to hit the ball accurately and with good control, and so on. there were.
The present invention makes full use of the functions of the fingers of the five hands, especially the index finger, and also allows the wrist functions to be fully exerted, the arms to move flexibly, and the form can be increased flexibly, resulting in an accurate and controllable hitting ball. In addition to being able to do so, it aims to provide a comfortable table tennis racket that is easy to handle and hand-friendly for beginners and those who rehabilitate by table tennis.

Means to solve the problem

  A constriction (4) is inserted between the hitting surface (2) and the grip (3), and four holes (5), (6), (7), (8) through which the index finger, middle finger, ring finger, and little finger pass through the grip (3). ) Is a new table tennis racket.

  When the tangent line (AB) is drawn from the center point (A) of the grip (3) to the outer edge of the ball striking surface, the outer edge line of the constriction (4) comes close to the tangent line (AB). By doing so, the weight of the racket body (1) can be reduced without impairing the rigidity to withstand the impact of the hit ball, and aesthetics can also be caused.

  Of the four holes (5), (6), (7), and (8) provided in the grip (3), the hole (5) through which the index finger passes is optional on the line from the first joint part to the second joint part. However, the hole (5) located in the first joint part concentrates the force and nerve on the fingertip of the index finger more easily than the hole (5-1) located in the second joint part, and controls the hit ball. Cheap.

  Of the four holes 5), (6), (7), and (8) provided at appropriate positions of the grip (3), three holes (6), (7), and (8) through which the middle finger, ring finger, and little finger pass are A position close to the second joint part on the line from the first joint part to the second joint part is preferable.

  The three-dimensional shape of the grip (3) is that the portion (9) that hits the inner side of the third joint of the middle finger is the thickest, and the other portion is made thinner by tapering (10) and gradually becoming thinner, so that the thickness can be adjusted to the thickness. Accordingly, the ball striking surface (2) approaches so as to be parallel to the central axis of the arm. Therefore, when the inclination angle of the tapered shape (10) is about 20 degrees, the ball striking surface (2) is on the central axis of the arm. Therefore, it becomes easier to hit and an accurate hit ball can be obtained.

  The two holes (6) and (7) through which the middle finger and ring finger are passed have a good inverted trapezoidal shape, which allows the hole to be enlarged to the maximum in a limited grip space, making it easier to insert the finger and grip the grip. In addition, the sense of stability increases from the aspect of aesthetics.

  The hole (11) with an appropriate size and shape in the center of the grip (3) can easily release the sweat of the palm, reduce the weight, and if it is a hole shaped like an animation or an animal, Interest is born, attachment is born, and the impression to table tennis begins.

The invention's effect

In the present invention, by placing a constriction between the hitting surface and the grip, the rigidity of the table tennis racket main body can be reduced without impairing the rigidity due to the impact of the hitting ball, and even the aesthetic feeling is caused.
When a hole for passing four fingers is provided in the grip, the index finger hole is provided at the position of the first joint, so that force and nerve can be concentrated on the fingertip of the index finger. You can enjoy a well-controlled hitting ball in a comfortable way.
Furthermore, by placing the thumb at the constriction, the center axis of the ball striking face is positioned on the extension line of the center axis of the arm, so that the far-field ball can be removed while holding the grip firmly and allowing the wrist to work freely. It becomes easy and the effect of the grip is seen.
The center part of the arm and the ball striking surface are aligned in a straight line by making the part that hits the inside of the third joint part of the middle finger of the grip the thickest and the other part tapered and thin, but with a fluid surface shape. Because the big hitting form can be taken both in the fore and the back, the wrist does not get tired, the control becomes better, and the more accurate hitting is obtained.
By providing a hole with an appropriate size and shape in the center of the grip, the weight of the grip can be reduced, and the sweat of the palm can be easily released, so that a comfortable shot can be enjoyed. If the shape of the hole is shaped like an animation or an animal, the fun will increase.
If the center of the grip is made hollow and an appropriate hole is made in the center, the weight is further reduced and sweat can be radiated better.
As described above, the functions of the fingertips are fully utilized, the wrist is used freely, the wrist does not get tired, and it is easy to control, so it is fun and easy for beginners and those who rehabilitate using table tennis A new type of table tennis racket that is comfortable and hand-friendly.

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the invention will be described based on an example with reference to the drawings.
In the front view of FIG. 1, a constriction (4) is inserted between the ball striking surface (2) located at the upper part of the table tennis racket body (1) and the grip (3) located at the lower part, and the index finger is inserted into the grip (3). Four holes (5) (6) (7) (8) through which the middle finger, ring finger and little finger pass are provided.

  In the constriction (4), when the tangent line AB is drawn from the center point A of the grip to the outer edge of the hitting surface in FIG. 1, the outer edge near the center of the constriction (4) is preferably on the tangent line (AB). This is because aesthetics can be obtained without impairing the rigidity withstanding the hit ball.

  FIG. 4 shows a state in which the grip of the table tennis racket of the present invention is gripped, and the hole (5) through which the index finger passes is most desirable to hit the first joint, but the hole (5) located in the first joint and the second Any position on the line connecting the holes (5-1) located at the joints may be used. The one closer to the first joint can concentrate the force and nerves on the fingertips of the index finger as well as on the fingertips of the other finger, and an accurate and well-controlled hitting ball can be obtained.

  If the holes (6) and (7) through which the middle finger and ring finger are passed are inverted trapezoidal shapes, it will be easier for the fingers to pass in a limited space, and there will be room around the fingers, which will eliminate cramping, A comfortable grip can be obtained as if the fingers are supported.

  In the plan view of FIG. 2, the portion (9) that hits the inner side of the third joint portion of the middle finger of the grip (3) is thickest, and the other portion has a smooth flow surface shape while gradually becoming thinner in a tapered shape.

  FIG. 6 shows a left side view of the grip (3). The maximum angle formed by the tangent line CD between the grip back bottom surface CE and the central portion of the streamlined portion on the grip surface is preferably about 20 degrees for the reason described later, and the entire grip has a flow surface shape.

  In FIG. 11, a grip (5) through which the index finger passes is provided at the position of the first joint, and the angle formed by the tangent (CD) of the grip bottom surface CE and the taper-shaped central portion in FIG. 6 is about 20 degrees. The right view when grasping the table tennis racket (1) which has (3) is shown. That is, it can be seen that the central axis of the arm and the ball striking surface are in a straight line. Therefore, since the movement of the arm can be greatly increased even during the fore back and back, a stable foam is obtained, the wrist does not get tired, and furthermore, the force and nerves can be concentrated on the first joint part of the index finger, The table tennis racket is accurate and easy to control.

  In FIG. 12, when the hole (5-1) for passing the index finger is provided at the position of the second joint, and the angle formed by the grip bottom surface (CE) and the tangent (CD) of the tapered central portion is 0 degree, The right side view when holding a so-called flat grip is shown. That is, it is apparent that the center axis of the ball striking face opens about 20 degrees outward from the center axis of the arm. Accordingly, since the grip is in close contact with the palm so that the grip is parallel to the palm, an interval for hitting with the palm is obtained.

  In FIG. 4, the hole (11) having an appropriate size and shape at the center of the grip (3) facilitates the release of palm sweat and reduces the weight. In addition, if you make a hole shaped like an animation or an animal, you will get a sense of fun and fun, and you will also have a unique aesthetic.

  FIG. 3 is a perspective view of the table tennis racket according to the present invention. In order to further reduce the weight of the grip (3), a hole (11) is provided with a hollow in the center.

How to make a new racket
A. Create a new table tennis racket body (1) with a constriction (4) between the ball striking face (2) and grip (3) with a suitable thickness plate,
B. Drill or punch four holes (5) (6) (7) (8) through the index finger, middle finger, ring finger, and little finger in the grip (3),
C. If a grip front piece (13) as shown in FIG. 7 and a grip back piece (15) as shown in FIG. 9 are fixed to the grip (3) from both sides, a new table tennis racket can be manufactured. .

  FIG. 5 shows typical hand shapes when positioning the four holes (5), (6), (7), and (8) through which the index finger, middle finger, ring finger, and little finger are passed through the grip (3). It is a figure which shows the place which is bending the middle finger, the ring finger, and the little finger so that an egg may be grasped lightly to such an extent that a simple hand is decided and the fingertip of a thumb and a middle finger touches.

  FIG. 13 shows a representative hand that is placed on the paper and the hand shape (17) is obtained by tracing the shape of the hand with a writing instrument.

  FIG. 14 shows that the bill (17) is placed at an appropriate position on the grip (3), and the first joint part of the index finger and the second joint part of the middle finger / ring finger / little finger are perforated (5) (6) (7). (8) Shown where the center is marked.

  It is a front view of a table tennis racket.   It is a bottom view of a table tennis racket.   It is a perspective view of a table tennis racket.   It is the figure which showed the state which grasped the grip of the table tennis racket, and is a figure which shows the positional relationship of the hole (5-) located in the 2nd joint part of the hole (5) index finger of the index finger.   It is the figure which showed the representative hand shape when positioning the four holes (5) (6) (7) (8) which let an index finger, a middle finger, a ring finger, and a little finger pass through the grip (3) of a table tennis racket. .   A left side view of the grip is shown.   It is a front view of the surface piece of a grip.   It is a surface piece left side view of a grip.   It is a front view of the back piece of a grip.   It is a right view of the back piece of a grip.   It is a right view when holding the new table tennis racket of Claim 2 of this invention.   It is a right view when a new type of table tennis racket according to claim 1 of the present invention is gripped.   It is the handprint which took the external shape about a typical hand.   Place the hand drawing at an appropriate position on the grip of the table tennis racket, and center the hole (5) (6) (7) (8) around the first joint of the index finger and the second joint of the middle, ring, and little fingers It is a figure which shows the place marked so as to come.

Explanation of symbols

1. 2. Table tennis racket Grip 4. Conclusion 5 Hole for inserting index finger 6. Hole for middle finger 7. Hole for inserting ring finger 8. Hole for inserting little finger 9. 9. A portion that hits the inside of the third joint of the middle finger of the grip Tapered part 11. 11. Hole with appropriate size and shape in the center of the grip Regarding the typical hand, the shape of the hand when taking a bill13. Grip surface piece 14. 15. Right side view of grip surface piece Front view of back piece of grip 16. 18. Right side view of the back piece of the grip Handprint A. Grip center point AB. Tangent CD. Tangent CE. Drawn from grip bottom surface (CF) to taper of grip. The base drawn on the bottom of the grip

Claims (3)

  Put a constriction (4) in the middle of the hitting surface (2) and grip (3) of the racket body (1), and pass four holes (5) (6) through the index finger, middle finger, ring finger and little finger through the grip (3) ) (7) New table tennis racket with (8) A. Put the constriction (4) in the middle of the hitting surface (2) and the grip (3),
B. The grip (3) has a hole (5) or hole (5-1) at an appropriate position on the line from the first joint part to the second joint part of the index finger, and three holes (three holes through which the middle finger, ring finger and little finger pass) 6) Provide (7) (8),
C. The grip (3) has the flow surface shape while the portion (9) that hits the inner side of the third joint of the middle finger is the thickest, and the other portion is tapered (10),
D. A new table tennis racket having one or more holes (11) having an appropriate size and shape in the center of the grip (3). The manufacturing process is
A. A new table tennis racket body (1) with a constriction (4) between the ball striking surface (2) and grip (3) is made of a flat plate.
B. In order to position the four holes (5), (6), (7), and (8) of the index finger, middle finger, ring finger, and little finger on the grip (3), a representative hand is determined and the fingertips of the thumb and middle finger are Bend the middle finger, ring finger, and little finger to lightly grip the egg (12), place the back of the hand on paper (Figure 13), trace the shape of the hand with a writing instrument, and take the hand shape (17) Place the object at an appropriate position on the grip (3) (Fig. 4), mark the center of the hole around the first joint of the index finger and the second joint of the middle, ring, and little fingers. Drill holes (5) (6) (7) (8)
C. Based on the grip (3) with the trapezoidal holes (5), (6), (7), and (8), make the front grip piece (13) and the back grip piece (15),
D. A method for producing a new racket by attaching a front surface grip piece (13) to the front surface of the grip (3) and a back surface grip piece (15) to the rear surface.

Images