JP3011885U - Dual-handle tennis racket for single-handed tennis players - Google Patents

Abstract

(57) [Summary] [Structure] A racket head is located on a plane, and a handle assembly having two handles located on a plane forming an angle of 10-40 degrees with respect to the plane.
Further, each handle comprises a multi-sided grip having a face parallel to a plane having an angle of 2-15 degrees with the plane in which the racket head lies. [Effect] Depending on the angle between the plane where the face of the grip is located and the plane where the racket head is located, a tennis player swinging with one hand can grip the tennis racket with one hand in an easy way, and a stable and balanced method. You can hit a tennis ball in front of your body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

The present invention relates to a tennis racket having a dual handle grip. More particularly, the present invention relates to a dual-handled tennis racket that is properly balanced to provide the best performance for a tennis player who strikes both the forehand and backhand with one hand.

[0003]

[Problems to be solved by conventional techniques and devices]

US Pat. No. 5,183,260 (hereinafter simply referred to as the 260 patent) issued to the present inventor on February 19, 1993 describes a tennis player who strikes the backhand with both hands and / or the forehand with both hands. A specially designed dual handle tennis racket is disclosed. The dual handle tennis racket of the 260 patent involves rotation of the plane in which the two handles are located such that the plane in which the handles are located and the plane in which the racket head is located form an angle of 10-40 degrees. .

Further, the '260 patent discloses a multi-sided grip, particularly a dual-handled tennis racket comprising handles having sides or faces (29) in a plane parallel to the plane in which the head of the tennis racket is located. Disclosure. (See 3A and 3B in Figure 3).

The dual-handle tennis racket disclosed in the above-mentioned 260 patent has been used with great success for players who hit the backhand with both hands and / or the forehand with both hands, but further research has shown that this racket The design has proved to be not optimal for single-handed players who hit the backhand and forehand with one hand. When swinging the 260 patent racket with one hand, either forehand or backhand, this will be downward or closed when the face of the racket head comes into contact with the ball, which is the best and most desirable when hitting a tennis ball. Do not make an angle of 90 degrees with the horizon that is the angle. The racket head may be pointing downwards because if you grip only one handle instead of two, the lower unhandled handle, which acts as a weight stabilizer, causes a racket imbalance. Be done. The single-handed closed-face hit position in the 260 patent is undesirable because it causes the player to lose power, tend to hit downwards, and cause the ball to frequently hit the net or go out of play. Is. Thus, there is a need for a dual-handle tennis racket designed for use by players who strike the forehand with one hand and the backhand with one hand. There is also a need for a dual-handled tennis racket that provides a right-angle aim when in contact with the tennis ball for a single-handed tennis player. Further, in addition to the first handle for a single-handed tennis player to grip, a tennis racket that provides a second handle that acts as a stabilizer for vertically positioning the dual-handle tennis racket when in contact with a tennis ball. There is also the necessity of.

[0007]

[Means for Solving the Problems]

First, a racket head supporting a network of guts located in a first co-planar plane, an elongated throat as an extension from the racket head, and two elongated handles of either of the handles. Mounted on the throat so that movement is also transmitted directly to the racket head, each of the handles has an elongated central axis and is adapted to be able to be gripped separately, with spaces between each other and side by side. Positioned and having said two elongated handles attached to the distal end of the throat for gripping a tennis racket, the central axis of each said handle being oriented to lie in a second common plane And the first common plane is separated from the second common plane by an angle of 10-40 degrees, and the two handles are substantially polygonal. And a planar outer grip surface including a third shared plane and a planar face surface, the first shared plane being separated from the third shared plane by an angle of 2-15 degrees. Dual-handle tennis racket for single-handed tennis players including. Second, the first handle further comprising a rigid connector attached to the distal end of the handle to secure the handles of the dual-handle tennis racket of the first, with a space therebetween. Dual-handle tennis racket for single-handed tennis players as described in. Third, a dual-handle tennis racket for single-handed tennis players as set forth in claim 1 wherein the two separate elongated handles attached to the throat of the dual-handle tennis racket of claim 1 are removable. Fourth, a frame forming a racket head located in a first common plane, an elongated intermediate position throat as an extension of the racket head, and two separate elongated handles each having an elongated central axis, Each handle is adapted to be grasped separately, is positioned side by side with a space between each other, is rigidly attached to the distal end of the throat, and each handle is planar including the face surface. Having an outer grip surface, the face surface of each handle being parallel to a second common plane, the first common plane being separated from the second common plane by an angle of 2-15 degrees. That includes, a dual-handle tennis racket for single-handed tennis players. Fifth, the dual handle tennis racket for the single hand tennis player of the fourth, wherein the two separate elongated handles attached to the throat of the tennis racket of the fourth are removable.

The present invention is a handle assembly having two handles located in a plane forming an angle of 10-40 degrees with a plane in which a racket face is located, and each handle forming the handle assembly has a multi-sided (multi-sided) structure. ) The plane in which the face of the grip lies is parallel to the plane in which the racket face lies and is an improved design for a dual handle tennis racket. The improvement is to rotate the multi-sided grip of the handle assembly so that the face of each grip is not located in a plane parallel to the plane in which the racket face is located. It has an angle with the plane on which the racket face is located.

The face of each grip rotates when the single-handed tennis player grips the grip and swings the racket with one hand so that the racket face has a vertical striking surface at the contact point with the tennis ball. Requires that. Providing a proper proportion of grip rotation, and allowing the tennis player to strike the ball in front of his body and to spin the tennis ball by turning or snapping his wrist when in contact with the tennis ball. You can

The amount of grip face rotation should be determined by the type of grip, eg typical Eastern or Continental, or personal preference regarding play style, playing conditions etc., but the starting point for the best amount of rotation. To determine, first hang the racket horizontally to adjust the racket face for the best vertical hit position. For example, if the angle between the plane where the handle assembly is located and the plane where the racket face is located is 22.5 degrees, the inclination angle of the plane where the racket face is located with respect to the plane where the face of the handle grip is located is , 9 degrees is good to adjust the racket face to the best vertical hitting position. However, as mentioned above, the final amount of face grip rotation after determining this initial amount of grip rotation depends on the tennis player's grip style and the player's personal preference.

As relatively advanced tennis players often prefer a customized tennis racket that is specifically designed for their grip and style of play, removal is one of the alternatives to the present invention. Suggest possible steering wheel assemblies. The amount of grip rotation allows the tennis player to replace the handle assembly, change the amount of grip rotation on the racket, and customize the tennis player's racket with play conditions and opponents depending on the conditions of play and the style of play of the opponent. It also proposes a removable handle assembly with a preset handle assembly.

Of course, the customized removable handle assembly also allows for different racket preferences and play styles by simply replacing the handle assembly to match the game of the player using the racket. It is convenient because even players can use the same racket face. For example, if a family of four tennis players jointly purchases one racket face and one to four handle assemblies, each person in the family may enjoy their own customized tennis racket. .

Therefore, for a player who strikes the forehand with one hand and the backhand with one hand, the plane where the grip face of the tennis racket is located is not parallel to the plane where the racket face is located. It is the purpose of the present invention to provide.

For players who hit the forehand with one hand and the backhand with one hand, it is possible to provide a dual handle tennis racket in which the racket face of the tennis racket is in the proper vertical hitting position when in contact with the tennis ball. This is another purpose of the present invention.

It is another aspect of the present invention to provide a dual-handle tennis racket that provides more stability and hitting power for traditional single-handle tennis rackets than typically provided for single-handed players. Is the purpose of.

The racket can be customized to suit the conditions of play with each tennis player, or by simply replacing the handle assembly, one or more players can play the same racket head portion of the racket without losing customization. It is another object of the present invention to provide a dual handle tennis racket with a removable handle assembly for use.

It is also an object of the present invention to provide a dual handle teni racket for a one-handed player that compensates for the weight or torque force caused by the lower handle that the one-handed player does not grip. Is.

For a one-handed player, it is necessary to suspend a dual-handle tennis racket so that the racket is substantially horizontal, and to increase the tennis player's ability to hit the tennis ball best with a dual-handle tennis racket. It is another object of the present invention to provide a dual handle tennis racket capable of determining the degree of grip rotation.

Other objects, features and advantages of the present invention will be apparent from the following embodiments when read with reference to the accompanying drawings.

[0021]

【Example】

FIG. 1 is a plan view of a dual handle teni racket for a single tennis player of the present invention having a dual handle grip and the grip face is not parallel to the racket face.

FIG. 2 is a three-dimensional view of an end of a dual-handled tennis racket for a single tennis player of the present invention. In FIG. 2, 2A is a left-handed tennis racket incorporating the principle of the present invention, 2B. Represents a right-handed tennis racket incorporating the principles of the present invention, showing both the angle between the plane of the handle and the plane of the racket head and the angle between the plane of the grip face and the plane of the racket head. It is a thing.

FIG. 3 is a three-dimensional view of the edge of a prior art tennis racket, where 3A is a US left-handed tennis racket incorporating the principles of the prior art disclosed in US Pat. No. 5,183,260, 3B is a US Represents a right-handed tennis racket incorporating the prior art principles disclosed in Patent No. 5,183,260, wherein the plane in which the prior art grip face lies and the plane in which the prior art racket face lies are parallel to each other. Is shown.

FIG. 4 is a front view of the dual handle tennis racket of the present invention suspended in a substantially horizontal ball striking position.

FIG. 5 is a perspective view of the end of a dual handle tennis racket of the present invention suspended in a substantially horizontal ball striking position.

FIG. 6 is a perspective view of another embodiment of the tennis racket of the present invention having a removable handle assembly.

A detailed description of the drawings in which the numbers are assigned to the respective parts will be given below.

FIG. 1 shows a tennis racket 9 incorporating the principles of the present invention in a preferred form. The tennis racket 9 is composed of a racket head 11, a throat 12, and a frame 10 forming a grip assembly 14 composed of two hands consisting of grips 15 and 16 and grip faces 29a, 29b, 29c and 29d. . The two handle grip assembly 14 includes U-shaped struts 19 attached to the ends 21 and 22 of the grips 15 and 16, respectively. The strut 19 firmly fixes the grips 15 and 16 in a positional relationship with a space provided therebetween, and transmits the torsional rigidity to the grip assembly 14 composed of two handles. Above the grips 15 and 16, a grip assembly 14 consisting of two handles is connected at a joint 23 and is firmly fixed to the throat 12.

In FIG. 2, 2A and 2B show an angle 24 between a plane 25 on which the grip assembly 14 is located and a plane 26 on which the racket head 11 is located. In Fig. 2, 2A is a view of a tennis racket intended for use by a left-handed tennis player from the rear end, and 2B is a view of a tennis racket intended for use by a right-handed tennis player from the rear end. It is a figure. In FIG. 2, arrows 27 and 28 of 2A and 2B indicate the directions to the racket 9 shown in the figure when the tennis player hits the ball in the forehand and backhand. Field tests have shown that the best angle of angle 24 is between 10 and 40 degrees, as detailed in US Pat. No. 5,183,260 by the inventor. This patent is incorporated herein by reference.

Since the dual-handled tennis racket of the present invention is designed specifically for single-handed (one-handed) tennis players, it solves the problem of using the dual-handled racket with only one hand. In order to do so, there was a need to improve the dual-handled tennis racket shown in the 260 patent for double-handed tennis players. Specifically, the main problem with using a dual-handled racket with only one hand is that the unhandled handle at the bottom of the handle assembly causes the racket to lose its balance, causing the racket to come into contact with the tennis ball. The face goes down, resulting in a bad shot. Of course, this problem does not occur when using a dual-handled tennis racket with both hands, which means that when one hand is on each handle, the racket does not break the balance and the racket face Because it is substantially vertical at the time of ball contact, so it was not a problem in such cases. However, if the lower grip of the handle assembly is not gripped during the forehand and / or backhand swing, the weight of the hand that is not gripped will cause the racket to lose its balance, causing it to lose contact with the tennis ball. Undesirable torque is generated.

As a result of researching to solve this unbalanced problem that has not been known until now, the best hitting position for a tennis player with one hand to maximize the use of his wrist roll at the time of contact with a tennis ball is Rotating the grip face of each of the handle assemblies so that the grip face is at a 2-15 degree angle with the racket face, rather than the grip face being parallel to the racket face as per the 260 patent. It turned out that can be achieved. As shown in FIGS. 2 and 5, multi-sided grips 15 and 16 have faces or faces 29a, 29b, 29c, 29d (see FIG. 2), all of which are located in planes parallel to each other. Moreover, they are all also parallel to the plane 30. The plane 30 forms an angle 32 with the plane 26 on which the racket head 11 lies.

This angle 32 is obtained by suspending the tennis racket 9 in a horizontal striking position as outlined in FIGS. 4 and 5. The racket 9 is suspended horizontally by suspending in the air the highest position A on the side of the racket head 11 and the upper grip shown as grip 15 in FIG. The racket 9 is suspended by the thread 40, but other suspension methods may be used to suspend the racket 9. Due to the angled grip assembly 14, the flat surface 26 is not perpendicular to the horizon, specifically because of the unsuspended lower grip 16. Therefore, in order to readjust the head face 11 of the racket 9 so that it is substantially vertical at the hitting position and substantially vertical to the horizontal line, the multi-sided grips 15 and 16 of the grip assembly 14 are adjusted. By rotating so that the plane 26 is perpendicular to the horizontal line.

If the angle between the plane 25 on which the handle assembly 14 is located and the plane 26 on which the racket head 11 is located is 22.5 degrees, the multi-sided grips 15 and 16 are moved in the same direction (ie , Both clockwise or both counterclockwise). For example, as shown at 2B in FIG. 2, for a right-handed player, multi-sided grips 15 and 16 were rotated 9 degrees counterclockwise from the plane 26 where the racket head was located. This is because the angle 24 between the racket head 11 and the grip assembly 14 is 22.5 degrees. Similarly, as shown at 2A in FIG. 2, for a left-handed player, the multi-sided grips 15 and 16 were rotated 9 degrees clockwise from the plane 26 where the racket head was located. This is because the angle 24 is 22.5 degrees. One of ordinary skill in the art will appreciate that the amount of rotation to rotate the multi-sided grips 15 and 16 can vary, including the size and weight of the tennis racket, the angle 24 between the grip assembly 14 and the racket head 11. Understand that it depends on the elements.

Furthermore, the method by which the tennis player grips the racket grip, that is, the normal Eastern or Continental method, is also a factor that determines the amount of grip rotation. Of course, player preference and player style are also factors that determine the amount of grip rotation. In fact, depending on the playing conditions or the specific opponent, the tennis player may want to rotate the grip more or less than usual. Accordingly, another embodiment of the present invention includes a removable grip assembly 80 as shown in FIG. The removable grip assembly 80 fits neatly on the racket head portion 82 due to the unevenness. Each of the removable grip assemblies 80 is interchangeable with the racket head portion 82, and the player can replace the grip assembly to change the hitting angle of the tennis racket, the amount of roll on the wrist, and the player's play on the tennis ball. The degree of spin can be changed in various ways.

The features and principles of the present invention have been described above by describing the preferred embodiments of the present invention. It will be apparent to those skilled in the art that numerous changes and modifications can be made without departing from the spirit and scope of the invention as defined in the claims for utility model.

[0037]

[Effect of device]

The angle between the plane on which the face of the grip is located and the plane on which the racket head is located allows a tennis player swinging with one hand to grip the tennis racket with one hand in a comfortable manner, providing a well-balanced and stable method. You can hit a tennis ball in front of your body with.

[Brief description of drawings]

FIG. 1 is a plan view of a dual handle tennis racket for a single tennis player of the present invention.

FIG. 2 is a perspective view of an end of a dual-handled tennis racket for a single tennis player of the present invention.

FIG. 3 is a three-dimensional view of the edge of a prior art tennis racket.

FIG. 4 is a front view of the dual handle tennis racket of the present invention.

FIG. 5 is a perspective view of an end of a dual-handle tennis racket according to the present invention.

FIG. 6 is a perspective view of another embodiment of the tennis racket of the present invention.

[Explanation of symbols]

 9 Tennis racket 10 Frame 11 Racket head 12 Throat 14 Grip assembly 15 Grip 16 Grip 19 Strut 21 Grip 15 end 22 Grip 16 end 23 Junction 24 Angle 25 Plane 26 Plane 27 Arrow 28 Arrow 29a Grip face 29b Grip face 29c Grip Face 29d Grip face 30 Plane 32 Angle 40 Thread 80 Grip assembly 82 Racket head

Claims (5)

[Scope of utility model registration request] 1. A racket head for supporting a network of guts located in a first co-planar plane, an elongated throat as an extension of the racket head, and two elongated handles, the movement of either handle. Mounted on the throat for direct transmission to the racket head, each of the handles has an elongated central axis and is adapted to be gripped separately and is positioned side by side with a space between each other. , Having the two elongated handles attached to the distal end of the throat for gripping a tennis racket, the central axis of each of the handles being oriented to lie in a second common plane,
The first shared plane is separated from the second shared plane by an angle of 10-40 degrees, and the two handles have a substantially polygonal cross section and a face parallel to the third shared plane. Having a planar outer grip surface including a surface, the first shared plane having an angle 2-
A dual-handled tennis racket for single-handed tennis players, including 15 degrees away from a third shared plane. 2. The dual handle tennis racket of claim 1 further comprising a rigid connector attached to the distal ends of the handles to secure the handles with a space therebetween. Dual-handle tennis racket for the listed single-handed tennis players. 3. A dual-handle tennis racket for a single-handed tennis player according to claim 1, wherein the two separate elongated handles attached to the throat of the dual-handle tennis racket of claim 1 are removable. 4. A frame forming a racket head located in a first co-planar plane, an elongated intermediate position throat as an extension of the racket head, and two separate elongated handles each having an elongated central axis. Each of the handles is adapted to be grasped separately, positioned side by side with a space between each, and rigidly attached to the distal end of the throat, each handle including a face surface and a planar outer surface. A grip surface, the face surface of each handle being parallel to a second common plane, the first common plane being at an angle 2-15.
A dual-handle tennis racket for single-handed tennis players, comprising: separating from the second shared plane in degrees. 5. A dual handle tennis racket for a single hand tennis player according to claim 4 wherein said two separate elongated handles attached to the throat of the tennis racket of claim 4 are removable.