JPH105374A - racket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability without damaging strength by integrally protruding a projection, on which the forefinger is hooked, or a projection having a hole for inserting the forefinger in the open space of a frame. SOLUTION: A projection 2 for finger hook is formed integrally with the frame on a yoke 1 of a gut spread racket. This projection 2 for finger hook is formed to be rod-shaped as a whole while providing a nonskid round ball for the finger at its lower end. When the forefinger is hooked on the finger hook projection 2 at the time of grasping this racket, the finger is flexibly bent and the operability of finger is improved. Then, the thumb, forefinger and other three fingers successively touch the racket and since these fingers are almost coincident with a gut face, the recognizability of the gut face is improved. In place of this finger hook projection 2, a ring-shaped projection 5 having the hole for inserting the forefinger is available as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gut-stretched racket which is gut-stretched on a frame, and particularly to a racket having an open throat.

[0002]

2. Description of the Related Art Conventionally, in a racket having an open throat, an open space surrounded by a yoke and a throat is literally "open" and is merely a space in which a bridge other than a yoke gourmet or a reinforcing yoke exists. Was.

[0003] The two throats that connect the gut surface forming frame and the handle are provided with a resistance to "torsion moment about the handle of the gut surface when hitting". Because of the design reason that they are connected by a smooth curve, they are usually separated by a considerable distance, and the throat distance at the yoke is usually about the distance between the tip of the thumb and index finger with the palm fully extended. It was. Since this throat becomes narrower toward the handle, the left hand that is not the dominant arm in play is
It should be held as close as possible to the gut surface, but it is difficult to grip and it is easy to slide down and hold near the right hand holding the handle, and the precise and agile operability of the entire racket and gut surface Had been lost.

In order to recognize the gut surface with a finger, a method of holding the index finger of the left hand against the gut surface has also been popularly introduced by the instructor. However, this method of holding cannot sometimes escape the risk of peeling off the nail, and does not always improve the operability.

[0005] Furthermore, the mitigation of the impact due to the impact can be achieved on the gut surface close to the yoke or elsewhere on the gut surface.
For example, a rubber damper was installed, but this damper absorbed the vibration of the gut surface and did not limit the residual vibration of the frame. In addition, it is possible to hit the damper itself. In this case, an accurate hit could not be expected, and the use efficiency of the gut surface was reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional technical problem, and has greatly improved the operability of a racket of an open throat without losing strength. It is an object of the present invention to provide a racket in which mitigation is more effectively realized by a dedicated device arranged in an open space.

[0007]

Means for Solving the Problems In order to solve the above problems,
The first invention is a rod-shaped projection or overhang mainly having an attachment portion, which has an attachment portion in a frame portion forming an open space, or a projection or overhang mainly having a hole into which an index finger can be inserted, or mainly. The projections and overhangs having depressions into which the index finger can be put or fitted were integrally molded with the frame from the beginning.

According to a second aspect of the present invention, a bridge which is not a yoke and is connected to a yoke and a throat at a position closer to a yoke than a handle in an open space is formed integrally with a frame from the beginning and passed. Into several parts,
It is designed so that the index finger can be hung mainly on the bridge other than the yoke.

In a third aspect of the present invention, the projections and overhangs according to the first aspect of the invention and the bridge according to the second aspect of the invention are molded separately from the frame, and are mounted on a yoke or the like by gut tension using a yoke gourmet. Screw it into the yoke or throat, or screw the whole,
It was formed so that it could be attached to the rabbit from behind.

Further, the fourth invention relates to the projections, overhangs, bridges and the like according to the third invention, as well as their own "base parts" and "projections, overhangs and bridges".
After the frame was formed, the base portion was attached to the frame later, and thereafter, only the other protruding portions, overhang portions, and bridge portions could be easily replaced later. In addition, this makes it possible to use, for example, a string or a tension spring for a bridge to be mounted later.

According to the fifth aspect of the invention, the projections, overhangs, bridges, and the like according to the first to fourth aspects of the invention are not merely provided for the purpose of hanging, inserting, and hitting a finger, but also reduce the impact impact. It also has a function as a "damper". Alternatively, they are formed so as to be able to support a ready-made damper without having a function as a damper. As a result, the damper is completely eliminated from the gut surface, and a larger dedicated device can be used to directly limit the residual vibration of the frame.

[0012]

According to the structure of the first aspect, the player can operate the racket by hanging, inserting, or hitting the left hand, which is not the dominant arm, mainly on the protrusion or overhang, etc. during play. . As a result, the left hand can easily hold the racket near the gut surface without sliding down the throat, and the operability of the entire racket and the gut surface is improved. Also, by touching the protrusions and overhangs mainly with the index finger, the thumb and other fingers are also aligned,
The gut surface can be recognized at three points on a plane completely parallel to the gut surface, and in particular, the operability of the gut surface is significantly improved. Also, none of the fingers touch the gut surface itself, eliminating the risk of injury. The present invention is not limited to a tennis racket, but relates to a gut-stretched type racket, but especially when limited to a tennis racket, if a protrusion or an overhang is arranged so as to close an open space, it is often used by beginners. Eliminates the intrusion of the ball into the open space and sometimes allows the ball to return.

With the structure of the second invention, the same operation and effect as those of the first invention can be obtained, and the strength of the yoke and the throat is improved. In addition, if it is limited to a tennis racket, the possibility of returning a ball in an open space is further increased.

By configuring as in the third invention, it is possible to use projections, overhangs and bridges on a racket having a completely conventional open throat without changing the frame design at all. Exactly the same functions and effects can be obtained.

According to the fourth aspect of the invention, it is possible to replace the projection, the overhang or the bridge with an easy-to-use type according to the player's preference. In particular, regarding a bridge, a bridge configuration in which a string is stretched or a thin leaf spring is stretched becomes possible, and the possibility of using a projection, overhang, or bridge is expanded.

By configuring as in the fifth invention, the first aspect
In addition to the completely same operation and effect as the fourth invention, not only the damper which was conventionally on the gut surface can be installed at least on the attachment portion on the frame forming the open space, and it is possible to avoid hitting with the damper, The effectiveness of the gut surface is expanded. In addition, the damper is installed directly on the frame, not on the gut surface, and can cut residual vibration of the frame itself. In addition, it is possible to increase the size of the damper itself, and it is possible to use a damper having a more advantageous structure, material, and the like to reduce the impact, thereby improving the cushioning performance.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a yoke, a throat, and a handle of a gut-stretched type racket according to an embodiment of the first invention.
It is a top view of several projections integrally molded with the frame in the yoke. In the figure, reference numeral 2 denotes a finger-hanging projection having a rod-like shape as a whole and having a rounded knob at the lower end for keeping fingers from sliding. Figure 1,
(A) shows how to grasp the left hand which is not a dominant arm as a conventional racket without daring a finger on the projection, and (b) shows how to grasp the index finger with the finger hanging projection. In (a), the fingers are elongated long, but in (b), all the fingers are softly bent, and the operability of the fingers is improved. Further, the racket comes in contact with three points of the thumb, forefinger, and other fingers, which are determined so as to substantially coincide with the gut surface, thereby improving the recognition of the gut surface.

FIG. 2A shows a ring-shaped projection into which a finger can be inserted, so that the index finger can be supported more stably. (B) is an overhang of a type in which a finger is pressed against the depression, and if the index finger is placed on the gut surface, the present embodiment ensures more reliable gut surface recognition and finger safety. In the figure, the protrusions and overhangs are installed in the open space and at the center of the yoke, but in the present invention,
The projections and overhangs do not limit the installation position, shape, or number of installations. For the purpose, "hang your finger" or
It is only necessary to be able to “insert a finger” or “put a finger”, and any finger, for example, an index finger and a middle finger may be used. It should change to a recognizable space. In addition, protrusions and overhangs are limited only to having the attachment part on the frame that forms the open space, which does not have to fit in the open space, even if it is large enough to protrude from it, In such a case, even if it projects in a direction perpendicular to a plane parallel to the gut surface, it does not matter. However, in the embodiment, since a protrusion or an overhang exceeding the thickness of the frame is disadvantageous, FIG. In the present invention, the term “projection” refers to a split and rod-like projection, and the term “overhang” refers to a split and flat plate-like projection like an eave.

FIG. 3 shows an embodiment of a racket of the type according to the second invention, in which a projection is extended and is combined with a throat to form a bridge. If the bridge is a laterally straight bridge such as 7, it is possible to hang several fingers on the finger hanging portion, and the strength of the frame is obviously improved. In the case of a bridge having a partial depression as shown in FIG. 9, it is also possible to put a finger on the depression and put another finger on the bridge. As described above, in the present invention, the installation position of the bridge is limited to the vicinity of the yoke, but the shape and the number of the installation are not limited at all. Of course, narrower bridges which are advantageous in terms of the weight limitation of the racket and those which are curved as a whole are also claimed. Further, the bridge itself has the attachment portion in the frame forming the open space, but the entire bridge may not fit in the open space, and may have a size that partially protrudes.

FIGS. 4 to 6 show an embodiment of a projection, overhang or bridge according to the third invention. This is different from the first and second inventions in that the projections, overhangs and bridges themselves are molded separately from the frame, and are later mounted on the frame. FIG. 4B shows an embodiment of a bar-like projection having a knob integrally molded with the yoke gourmet. This is because the racket frame is completely conventional in design because it is attached to the yoke of (a) as a yoke gourmet and is fixed by gut tension. In other words, if only the shape of the yoke gourmet of the conventional racket is changed. By operating a finger in an open space, a protrusion for recognizing a gut surface can be provided. In the present invention, the protrusions, overhangs, and bridges are directly screwed or fitted into mounting holes or mounting recesses formed in the frame,
Further, it may be attached by bonding or the like, and the method of attaching the projection to the frame is not limited at all. The point is that the protrusions, overhangs, and bridges molded separately from the frame are attached to the frame later.

FIG. 5 shows an embodiment of the overhang according to the third invention. The overhang is molded integrally with the gourmet and later mounted on the frame. It is characterized in that it protrudes from the yoke beyond the thickness of the frame in an obliquely inverted V-shape. By protruding beyond the thickness of the frame in this way, it is not necessary to insert the finger deeply into the open space when placing the finger on the overhang, and the racket can be held comfortably. It is possible to reduce the weight of the overhang by bending the plate, which is one of the advantageous embodiments. Further, the damper according to the fifth invention can be set in the space between the two overhangs.

FIG. 6 shows an embodiment of a bridge according to the third invention. In an open space, a bridge molded separately from the frame can be set in various ways. For example, (a) shows an embodiment of a three-legged bridge that is fitted to three yokes and two throats forming an open space so as to stretch three legs. In this case, the york gourmet can utilize the finger hook bridge without any trouble in the conventional design. This three-legged bridge needs to be deformed at the time of fitting, and it is advantageous that the material can be elastically deformed. (B) is a type of bridge that sets the rubber fitting ring by hanging it from the yoke with a special ring suspension. The swelling of the fitting ring on the throat is considered to be used as a finger slip. ing. Thus, the present invention does not limit the setting method and the material of the bridge to be set in the open space later. Of course, gut tension can also be used, and may be fitted, hung, or screwed. Therefore, it is a matter of course that the shape is various, and the point is to realize the operability of the finger in the open space and to improve the recognition of the gut surface.

FIG. 7 is an embodiment of the base and some projections screwed into the base according to the fourth invention. The projection mounting base also serves as a yoke gourmet, and the base is fixed to the yoke shown in FIG. In this embodiment, the replaceable projection is screwed into a screw hole provided in the base and fixed. Therefore, if the projection is unnecessary, the racket can be used by removing it. Of course, the shapes of the projections are, for example, 23 (bar), 24
It can be replaced according to the player's preference, such as (flat type), 25 (finger contact type), and 27 (finger hole type). Thus, in this embodiment, the base also served as the York Gourmet,
As a dedicated base, a base that can be attached to a yoke or a throat or the like by various means, such as using, attaching, or fitting a screw, without depending on the gut tension, can of course be used.
In this embodiment, means for attaching the projection to the base is also provided.
Although it depends on screwing, various methods such as fitting and screwing are naturally possible. In this way, what is attached to the base is not limited to the projection as in the present embodiment, but may be an overhang or a bridge. In short, the base is attached, and the other protrusions, overhangs, and bridges are interchangeably and separately mounted on the base by operating the fingers in the open space and replacing the protrusions, overhangs, and bridges that can recognize the gut surface It is provided as possible.

FIG. 8 shows an embodiment of the stringing base and the strapping for fastening the string with the throat, which are also related to the fourth invention.
If a wide and durable string is passed through the hole and tied firmly in the center, a bridge composed of the string can be formed. It goes without saying that a conventional damper or a specially developed damper can be tied to such a string. Thus, the present invention does not limit that the bridge itself is solid. The point is that any material and configuration can be used as long as a bridge that can recognize the gut surface can be formed by operating a finger on the frame that forms the open space.

FIG. 9 shows an embodiment of a damper according to the fifth aspect of the present invention which has an attachment portion on a frame forming an open space. It is formed by setting a hollow cylindrical damper in a space sandwiched between the inverted V-shaped overhanging V-shaped members described in FIG. A mixture of oil, water, air and the like is sealed inside the cylinder, and the operation direction is perpendicular to the gut surface and is fixed to the yoke, so that the impact of the frame itself is reduced. In addition to the overhang to support the damper, the original function of hanging the finger is preserved. It is understood that effective dampers having various structures can be installed in the open space, not limited to the present embodiment, and in the present invention, only the attachment to the frame forming the open space is limited, and the material and the damper of the damper are limited. The shape and configuration are not limited at all.

FIG. 6 is also an embodiment of an open space installation damper according to the fifth invention. In the case of the three-legged bridge shown in Fig. 5, the foot immediately adjacent to the fitting foot is formed into a thin plate parallel to the gut surface and the center is slightly thickened, so that the center of the bridge can vibrate perpendicularly to the gut surface. Function is provided. Further, the fitting ring of (b) is a rubber damper as it is.

As can be seen from these figures, these dampers are not mounted on the gut surface, but are directly attached to the frame, and therefore absorb not the residual vibration of the gut surface but the residual vibration of the frame itself. As described above, the damper according to the fifth aspect of the present invention does not limit the material, the shape, and the like of the damper at all, and it is claimed that an open space and a member having a vibration damping function are arranged around the open space. Utilizing the size of this, it will be possible to develop a variety of dampers with clever mechanisms.
Unlike the damper set on the gut surface, the damper of the present invention operates to directly absorb the residual vibration of the frame itself without hindering the impact and not absorbing the vibration of the gut surface.

[0029]

As is clear from the above description, according to the first aspect of the present invention, the racket yoke having the open throat has the projections and overhangs integrally formed with the frame. It is formed so that it can be applied, inserted, and applied. Therefore, the operability of the racket is remarkably improved. If you put your index finger on the protrusion or overhang, you can operate the racket, especially the gut surface, with the five fingers softly bent, which helps to create a subtle surface with volleys and the like. The thumb, forefinger, and other three points make the same plane as the gut plane, so the hand becomes sensitive to the shape of the plane. In order to obtain this effect, the danger of peeling off the nail when the index finger directly touches the gut surface can be avoided. Furthermore, if it is added only to tennis rackets, it is possible to avoid the ball getting stuck in an open space, which is often seen by beginners. There is a possibility that the ball will be correctly returned by hitting the projection.

According to the second aspect of the present invention, a bridge is formed integrally with the frame so that a finger can be hooked, inserted, or applied to the open space closer to the yoke than the handle. Therefore, just like the first invention,
The operability of the racket is significantly improved. In addition, the frame strength of the yoke and the throat is improved. Furthermore, if it is added only to tennis rackets, it is possible to avoid the ball getting stuck in an open space, which is often seen by beginners. The possibility of returning the ball correctly by hitting the bridge is higher than that of the protrusion.

Further, according to the third invention, the projections, overhangs, bridges and the like according to the first and second inventions are formed separately from the frame, and formed so as to be attached to the frame forming the open space later. . For this reason, the projections, overhangs, and bridges according to the first and second aspects of the present invention can be used for a racket having a completely conventional open throat while preserving the effects of the first and second aspects of the invention.

Further, according to the fourth invention, the projections, overhangs, bridges, etc., according to the third invention are separated into a mounting base and other parts, and only the base is mounted first, and the other parts are further rearwardly mounted. It was formed so that it could be attached to and detached from the base. For this reason, it became possible to replace it with any type of protrusion, overhang or bridge. In addition, the size and weight of the projections, overhangs, and bridges to be replaced can be arranged, and a suitable racket practical state can be made.

Further, according to the fifth aspect, the first to fourth aspects are provided.
The projections, overhangs, bridges, and the like according to the invention are formed by imparting a function as a damper for absorbing impact vibration. For this reason, it is possible to cut the residual vibration due to the impact of the racket frame itself while preserving the effects of the first to fourth inventions. This damper directly limits the vibration of the frame itself, not the vibration of the gut surface, and has the effect of efficiently limiting the residual vibration transmitted to the hand. It is needless to say that the use efficiency of the gut surface is improved because the damper is not provided on the gut surface. The installation of a damper in an open space, even if the weight restrictions are cleared, makes it possible to take a size that is incomparable to that on a gut surface, and a shape and structure suitable for absorbing vibration.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the first invention.

FIG. 2 is a plan view of the embodiment of the first invention.

FIG. 3 is a plan view of an embodiment of the second invention.

FIG. 4 is a perspective view of an embodiment of the third invention. (A)
FIG. 2 is a partial perspective view of a yoke of a racket to which the embodiment is attached.

FIG. 5 is a perspective view of an embodiment of the third invention.

FIG. 6 is a plan view and a perspective view of an embodiment of the third invention. (B), the left figure is a side view of the mounting ring suspension and a perspective view of the fitting ring. This drawing is also an embodiment of the fifth invention.

FIG. 7 is a perspective view of an embodiment of the fourth invention.

FIG. 8 is a perspective view of an embodiment of the fourth invention.

FIG. 9 is a perspective view of an embodiment of the fifth invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Yoke 19 Button 2 Protrusion 20 Button hole 3 Throat 21 Gourmet-integrated base 4 Handle 22 5 Ring-shaped projection 23 Screw-in projection bar type 6 Finger rest overhang 24 Screw-in projection flat 7 Finger bridge 25 Screw-in finger projection 8 Horizontal Bridge 26 Finger rest 9 Finger rest hanging bridge 27 Screw-in finger hole type projection 10 Diagonal bridge 28 Finger hole 11 Yoke gourmet 29 Screw hole 12 Gourmet integrated protrusion 30 Screw 13 Gourmet integrated flat protrusion 31 String through hole 14 Gourmet integrated type Overhang 32 String 15 Inset Tripod bridge 33 Tethering 16 Inset foot 34 17 Inset ring 35 Cylindrical damper 18 Ring suspension

Claims (5)

[Claims] 1. A racket having a so-called open throat, in which a frame forming a gut surface and a handle are joined by two throats, attached to a frame forming an open space surrounded by a yoke and two throats. A protrusion or overhang, such as a handgun trigger, that has a part, is integrally molded with the frame, or has a hole that allows a finger to be inserted, or a recess or overhang that allows a finger to be inserted or fitted. , With a racket. 2. The projection according to claim 1 is extended,
The yoke connecting the yoke and the throat is molded as a separate bridge, and the open space is divided by the bridge into the yoke part, the throat part closer to the yoke than the handle, or the joint part of the yoke and the throat A racket, wherein a space is formed, and at least one finger can pass through the space. 3. The projection or the like according to claim 1 or the bridge according to claim 2 is molded separately from the frame, and is fixed to the yoke or throat by gut tension when the gut is stretched. A racquet configured to be fitted, pasted, tied, or otherwise attached to the yoke or throat anyway by other fastening methods such as screws. 4. The projection or the bridge according to claim 3 is separated into a base portion to be later attached to the yoke or the throat and other portions, and first, only the base is optionally attached, for example, by using gut tension or using screws. A racket configured to be freely attached to and removed from a base in any manner, such as by attaching it to a frame later, and then further attaching other parts, for example, by screwing, fitting, or binding. 5. The projections and the bridges according to claims 1 to 4, for example, enclose oil in the space between them, fit a soft rubber ring or the like in a part thereof, or absorb vibration such as a hard rubber as a whole. Made of high performance material,
For example, it is configured to have a shape such as a thin plate in part so as to be advantageous for vibration absorption, or it is configured to have a function as a damper capable of absorbing the impact vibration of a racket, or a projection or the bridge itself Does not function as a damper, but is configured as a damper support that could be used on the gut surface in the past, and in any case, the shock absorber damper is completely removed from the gut surface, and the frame where the damper forms an open space A racket that is arranged to have an attached part.