WO2011113312A1

WO2011113312A1 - Bat for tennis ball, squash ball or badmnton capable of damping vibration and incresaing elasticity

Info

Publication number: WO2011113312A1
Application number: PCT/CN2011/071005
Authority: WO
Inventors: 刘勇
Original assignee: Liu Yong
Priority date: 2010-03-15
Filing date: 2011-02-15
Publication date: 2011-09-22
Also published as: CN102188801A

Abstract

A bat for tennis ball, squash ball or badminton capable of damping vibration and increasing elasticity comprises a bat frame (1) with threading apertures (3) provided therein and a handle (2) extending downwards. A plurality of elastic flexible pieces (4) are provided between strings and the bat frame (1) to tighten up the strings towards exterior side of the bat frame (1) and wedged a groove (9) in the bat frame (1). Apertures (6) are provided in the flexible pieces (4), which are made of synthetic fiber material containing carbon element. The structure can remarkably alleviate vibration of the bat frame (1) and the strings after hitting the ball, enlarge sweet spots and keep excellent elasticity while pulling the strings with large poundage.

Description

Tennis racket, squash racket or badminton racket

1. Technical field

The utility model relates to a tennis racket, a squash racket or a badminton racket, in particular to a tennis racket, a squash racket or a badminton racket for shock absorption and bombardment.

2. Background technology

The existing tennis racket, badminton racket and squash racket have greatly improved with the structure of the technology into the racket, especially the material, especially after the use of man-made fiber, the performance of the racket has been greatly improved, but the number of users The problem is still not well resolved, including:

1. The racket tremor causes the elbow injury. Under the forty-five pounds of tension, the elastic deformation of the cable is small, and the elasticity of the frame is smaller, so that the impact force of the ball is not well buffered and fed back to the ball. Many tremor energy is transmitted to the elbow, causing the tennis elbow. On the other hand, the cause of the tremor is that the racquet hits the ball and the frame and the frame recover from the moment of deformation, causing a violent reciprocating shock, and this shock needs to be pulled. The line of the frame is well buffered, which is one reason why the line elasticity is slightly smaller, although it can be alleviated by using a good line and a lot of measures to cushion the pad at the handle, but the effect is Unsatisfactory, the fact that tennis is easy to cause tennis elbow has not changed, and it also causes the ball to feel ambiguous and loses the feel. In general, the energy storage energy feedback of the existing racket is not high and cannot be eliminated. The reciprocating oscillation during deformation recovery causes the problem of the tennis elbow, and the higher the pound, the greater the tremor of the racket.

Second, high flexibility and high control are not compatible with a racket, whether it is a tennis racket, a badminton racket or a squash racket. If the cable is high, the bed is hard, and the force of the ball is transmitted more quickly when hitting the ball, which leads to control. Ok, but the loss is the elasticity, the energy storage of the return ball and the softness of the shot. In addition, the tremor is also larger, which is more likely to cause elbow injury. On the contrary, if the elasticity and the racquet are fed back to the ball, the number of pounds of the cable is reduced accordingly. The batting strength is slow and the control of the ball will be reduced. These two points can't be combined on one racket at the same time. Many professional players with high technical strength, in order to control to give up high flexibility and safety, This is also a helpless move to lose sight of this.

Third, the racket hits the ball sweet area is small, the ball hits the position slightly off the center, the racket elasticity will have a big drop, it is easy to cause mistakes, especially the swing speed is suitable for the small face racket hitting the ball sweet spot Smaller, resulting in increased difficulty in hitting the ball, even if the use of low-pull pounds, the increase in sweet spots is very limited, and the hitting mistakes caused by the beginners when entering the sweet spot is a major obstacle, which also improves The threshold of learning has affected the popularity of sports. The reason for the small sweet spot is because the edge of the wire bed is very poor and the hand feel is very hard. If there are many benefits to increase the number of wire draws, the sweet spot will be smaller. This is one of the reasons why people with low levels can't use a racket with a high number of pounds.

Fourth, the racquet with a high number of pounds is well controlled, but the feel of the bats is not soft enough. It is caused by the small elastic stroke of the line and the frame when hitting the ball. The main reason is that the elasticity is even insufficient after increasing the number of strokes of the cable. Like a piece of wood, the hand feels too hard and the tremor is too big. Many players use the natural intestine with good elasticity to alleviate the problem of poor elasticity of the high-pull line, but its durability is low, the cost is too high and the effect is limited. Unable to spread.

5. The two performance requirements of the shot on the frame cannot be unified. The high strength required for the swing in the direction of the racket and the high toughness required in the direction of the center of the racket frame cannot be unified on a racket frame. Instruction manual

In the direction of the pendulum, the range of the overall deformation of the racquet is small to ensure the strength and control of the ball. In the direction of the center of the frame, it is required to be tough under high-strength pounds, so that it is hit under the premise of high control. The ball has a large elastic stroke, the ball is cushioned well, the ball has more feedback, the ball is strong, and the racket tremor is relatively reduced. Because the frame is integrally formed, if the material with high strength is used to satisfy the direction of the pendulum The strength requirement, then the toughness requirement in the direction of the frame is not satisfied, the frame is too hard, the elasticity is not good, and vice versa.

6. In the case of high-pull line pounds, the impact of the frame and the line is large, and the loss of the frame and the line is very large. This is also a major cause of the high cost of tennis. Many expensive lines cannot be played several times. The ball is damaged.

In addition, some innovative inventions have not fundamentally changed many of these problems: For example,

Z193221685. 4 The shock-absorbing nails or mats with elastic material are added between the line and the frame to increase the good hand and increase the sweet spot to a certain extent, and reduce the tremor, but the actual use of these mat materials Very unsatisfactory, these cushion materials have very little effect on the elastic properties under high pressure. As a result, the elastic stroke of the ball is not increased because of the increase of the elastic cushion, and the problem cannot be solved well. Another example, z l200620067909. x, the spring elastic shape is long and can be made into a high-intensity deformation starting point, which is good for reducing tremor and increasing the sweet spot, but the problem is also obvious, the spring will inevitably add a lot of Auxiliary members such as wire sleeve spring fixing devices form a complicated structure, which greatly affects the reliability and maintenance cost of the use. In addition, the excessive thickness of the spring causes the thickness of the frame to be too thick, the wind resistance to increase too much, and the spring material. Generally, it is mostly made of steel, which can withstand more than 50 pounds of tension. Generally, one needs more than 3 grams. Quantity, and the number of springs used is large, the whole has been much heavier. For a racket of only about 300 grams, adding dozens of spring members is simply unacceptable; and, like the Prince ex03 series technology, adds a lot of shock absorption. The material makes the shock absorbing material and the frame less contact, which reduces the tremor and increases the sweet spot, but the way of thickening and absorbing the soft material eventually leads to blurring of the tremor information. The feeling is unclear, and the cost of losing a lot of feel information while being comfortable is not a good solution.

The above analysis applies to tennis, squash and badminton rackets.

3, the content of the invention

In order to overcome the existing tennis racket, squash racket or badminton racket, the tremor damages the elbow and can not achieve large sweet spot, high control, high elasticity, better hand feeling and reduce the damage of the frame and the line, and The existing invention solves the above problems poorly or solves the problems of low reliability, excessive weight, high cost and unclear hand feeling, and the utility model provides a method capable of greatly reducing the tremor of the ball and increasing the sweetness. Zone, high elasticity, high control, reduced frame and line damage and a good clear hand feel, high reliability, low production cost, and the overall weight can be comparable to the existing tennis racket Shoot, squash racket or badminton racket.

The utility model is realized by the following technical solutions: a head frame including a hitting ball and a handle extending downward from the head frame, the head frame is provided with a threading hole, wherein the head frame can be worn for hitting the ball The wire is characterized in that: between the string and the frame, there are a plurality of elastic elastic pieces which can pull the wire to the outside of the frame. The elastic stroke of the shrapnel can be made very long, and it can play a large buffering effect when slamming the ball. Description

The ball energy is converted into potential energy, and then released to the ball, which forms a large returning force. The ball energy feedback efficiency is high, and after the hitting the ball, there is a spring with a large elastic stroke between the frame and the line as a buffer. Most of the tremor will be quickly absorbed by the elastic stress attenuation, just like the principle of elastic absorption of the gut absorption tremor, but the stress-absorbing shrapnel has better damping effect, and the toughness of the shrapnel is stronger. The line close to the frame is also very concave when hitting the ball. The elasticity of the line is extended to make the sweet area expand, and the small racket can still have a large sweet spot, and even if the cable is very high, the line is The elasticity is very small, but the elastic shrapnel still has a large elastic extension distance. It has good control while maintaining high elasticity, high return strength, large sweet spot and soft touch, which also buffers the ball to the line and the frame. The impact, long life, can also slow down the weight of the line, the shrapnel can use rayon high-strength material, the quality is relatively small, will not cause the racket to be overweight, and Simple structure, high reliability, simple production, manufacturing cost is not large.

A further improvement of the utility model is:

The elastic piece is stuck or carried on the racket frame, and the threading portion of the elastic piece and the frame wall have a gap of 1 mm or more in the direction of the vertical frame wall. This card-like structure allows the existing racket to achieve good flexibility, high control, and large sweetness without adding any changes or making a deeper groove on the outer wall of the frame. And the soft touch and other beneficial effects, and the cost is not high, the weight is not too heavy, the existing on-line machine can be operated.

The elastic piece and the frame are integrated, and one end thereof is combined with the frame, and the threading is suspended. This structure fuses the shrapnel into the structure of the frame, making the entire racket structure simpler, more stable in performance, relatively light in weight, easy to produce, and low in cost.

The elastic piece is embedded in the groove on the frame and can be replaced. In this way, the shrapnel is hidden inside the frame, which protects the cable from being vulnerable to external wear and tear. Moreover, if the shrapnel is damaged, the elasticity is reduced, or the player's technical strength changes, the new shrapnel or the shrapnel with different toughness can be replaced at any time. Frames reduce the cost of exercise and increase convenience, fun and personalization.

The cross section of the elastic piece is curved, V-shaped, inverted L-shaped, inverted V-shaped, C-shaped or S-shaped. The shape of the shrapnel of these shapes can achieve the object of the present invention.

The cross-section of the elastic piece is n-shaped, 0-shaped or m-shaped, and the shape of the elastic piece of these shapes can also achieve the object of the present invention.

The elastic piece has a plurality of holes or card line openings with a diameter larger than a line. The string is threaded through the hole or the card slot, which makes it more stable and naturally holds the tab.

The racket frame is a double cylinder frame of a large cylindrical sleeve semi-cylindrical, the semi-cylindrical is disposed on one side of the outer wall of the large cylindrical frame, and the elastic piece is disposed on the outer wall of the semi-cylinder and the large cylinder to the outside of the entire frame. This structure gives the support of a beam at the center of the frame, which makes the frame strong, the structure of the force is stable, and the thickness of the outer wall provided with the elastic piece is also thickened to ensure the strength of the elastic piece.

The racket frame is a structure in which two semi-cylinders are bonded and integrated, and the shrapnel is disposed on one of the semi-cylinders. This structure also enables the support frame to be provided in the center of the frame, and the strength of the frame is enhanced. The size of the semi-cylindrical portion of the elastic piece can be reduced, and the thickness can be increased, which not only ensures the strength of the elastic piece but also reduces the shot. The weight of the frame, and the two cylinders can be made of different materials, for example, a semi-cylinder with shrapnel can use a material with better toughness, and the other half cylinder can use a stronger material. Instruction manual

The racket frame is a structure thickened on a semi-cylindrical outer wall of the frame, and the elastic piece is disposed on the frame wall of the thickened side. This structure also enhances the strength of the shrapnel, also consolidates the overall strength of the frame and reduces weight.

The shrapnel is a material containing carbon fiber or other rayon material. It guarantees high strength and is not overweight.

The elastic piece is provided with a wire groove. When the wire is pulled, the wire can be placed in the groove of the wire to prevent slippage, and the groove of the wire can sometimes promote the deformation of the spring.

A lubricating hole sleeve of a pulley or a semicircular inner wall is disposed at the threading hole of the racket frame. Due to the elastic expansion and contraction of the shrapnel, the wire is twitched at the threading hole of the frame to lubricate and reduce wear.

A cushion is arranged between the elastic piece and the frame. It makes the hand feel softer, but it will lose some of the real tremor.

The groove is deeper at the front end of the frame than at the rear end. The mesh and the shrapnel that protect the front end of the frame are not easily subject to external impact, and the demand for strength at the top of the frame is lower than that for the middle and the rear, so this solution does not affect the frame. Strength in the middle.

A fairing is arranged outside the racket frame. This can reduce the wind resistance effect due to the grooves. A lateral beam is disposed between two adjacent elastic pieces on the outer side wall of the racket frame. It plays a very good role in the strength support of the frame, which can reduce the material used to support the frame, which is good for weight reduction.

Compared with the prior art, the utility model has the following advantages: the increased elastic device shrapnel is light in weight, high in reliability, long in elastic stroke, relatively simple in production, and realizes greatly reducing the tremor of the frame line after the racket hits the ball. In addition, it can increase the sweet spot, and makes the hand feel soft when the cable is high in pounds, and the high control and high elasticity are combined on one racket, and the high toughness requirement and pendulum of the ball striking technique are achieved. The convergence of the high-intensity requirements solves the problems that the prior art and some innovations cannot achieve. The damage to the elbow is greatly reduced, which makes the high elasticity and high control and the safety of the movement integrated into one shot. The racquet of the utility model has good elasticity regardless of the thread used. There is still a long elastic stroke after hitting the ball near the racket frame, which causes the sweet spot to increase, the mistakes in use are reduced, the difficulty in hitting the ball is reduced, and it is easy for beginners to get started, which increases the fun of sports. In addition, by adopting the structure of the utility model, the impulse of the ball received by the frame and the line can be greatly buffered, the damage of the frame and the line is reduced, the weight loss time of the line is prolonged, and the cost of the movement is reduced, and It is also possible to implement more personalized equipment configurations according to the characteristics of the players, such as the installation of elastic shrapnel of different strength and toughness at different positions of the frame, and the replacement of the shrapnel with different strength levels when the player changes and improves the technique, increasing the movement. Less fun, more humane, in line with the development trend of sports equipment.

4. Description of the drawings:

The utility model will be further described below with reference to the accompanying drawings:

Figure 1 is a front view of the first embodiment of the present invention,

Figure 2 is a cross-sectional view of the cross-section of the frame at an angle of 45 degrees in the first embodiment of the present invention, and Figure 3 is a cross-sectional view of the cross-section of the frame of the second embodiment of the present invention.

Figure 4 is a front view of the third embodiment of the present invention,

Figure 5 is a partially enlarged right side view of the frame of Figure 4 of the third embodiment of the present invention, Instruction manual

Figure 6 is a partially enlarged right side view of the frame of the fourth embodiment of the present invention,

Figure Ί is a cross-sectional view of the cross-section of the frame at an angle of 45 degrees in the third embodiment of Figures 4B-B and 5B-B of the present invention.

Figure 8 is a front cross-sectional view of the frame of Figure 3B-B of the third embodiment of the present invention, and Figure 9 is a cross-sectional view of the cross-section of the frame of the third embodiment of the present invention. ,

Figure 10 is a cross-sectional view showing another frame of the frame of the third embodiment of the present invention, and Figure 11 is a cross-sectional view of the frame of the frame of the third embodiment of the present invention. In the fifth embodiment of the present invention, the cross-sectional view of the cross-section of the frame is obliquely 45 degrees,

Figure 13 is a cross-sectional view of the fifth frame of the embodiment of the present invention,

Figure 14 is an oblique 45 degree angle view of the five elastic pieces of the embodiment of the present invention,

Figure 15 is a side cross-sectional view of the pulley at the threading hole of the fifth frame of the embodiment of the present invention,

Figure 16 is a side cross-sectional view of the lubricating hole sleeve of the semicircular inner wall at the threading hole of the fifth frame of the embodiment of the present invention,

Figure 17 is a cross-sectional view of the cross section of the frame of the sixth embodiment of the present invention taken obliquely at an angle of 45 degrees.

18 is an oblique 45-degree angle view of the elastic piece of the embodiment of the present invention,

Figure 19 is a cross-sectional view of the sixth frame of the embodiment of the present invention,

Figure 20 is a cross-sectional view of the seventh frame of the embodiment of the present invention,

21 is an oblique 45 degree angle view of the elastic piece of the seventh embodiment of the present invention,

Figure 22 is a cross-sectional view of the transverse cross section of the eight-frame frame of the embodiment of the present invention taken obliquely at a 45 degree angle,

Figure 23 is a cross-sectional view of the eighth frame of the embodiment of the present invention,

Figure 24 is a cross-sectional view of the frame of the nine frames of the embodiment of the present invention,

Figure 25 is a cross-sectional view of a ten-frame of the embodiment of the present invention

Figure 26 is a cross-sectional view of the eleventh frame of the eleventh embodiment of the present invention,

Figure 27 is a schematic view showing the depth of the groove bottom of the five-frame frame of the embodiment of the present invention,

Figure 28 is a cross-sectional view of the frame of Figure 25C-C of the fifth embodiment of the present invention,

Figure 29 is a cross-sectional view of the frame of Figure 25D-D of the fifth embodiment of the present invention,

Figure 30 is a cross-sectional view of the cross-sectional angle of the twelve-frame frame of the embodiment of the present invention, and Figure 31 is a cross-sectional view of the twelve-frame frame of the embodiment of the present invention.

Figure 32 is a partially enlarged right side elevational view of the frame of another embodiment of the fourth embodiment of the present invention.

5. Specific implementation method:

As shown in FIG. 1 and FIG. 2, in the first embodiment of the present invention, a head frame 1 for hitting a ball and a handle 2 extending downward from the head frame are provided, and the head frame 1 is provided with a threading hole 3, wherein A line for hitting the ball can be worn, and is characterized in that: between the beat line and the frame 1, a plurality of elastic elastic pieces 4 for tensioning the line to the outside of the frame are provided. The elastic piece 4 is supported on the racket frame 1 on both sides, and the outer side is clamped on the outer side of the frame to play a fixed role. The threading portion 5 of the elastic piece 4 and the frame wall have a gap of 1 mm or more in the direction of the vertical frame wall. , which gives a certain space for increasing the elastic stroke, wherein the optimum is 5 mm, the cross section of the elastic piece 4 is an inverted V shape, and the elastic piece 4 has a plurality of holes 6 arranged in a straight line and having a diameter larger than the line for threading, wherein a plurality of holes 6 are established. The reason is that the hole 6 of the elastic piece 4 can have more chances to be aligned with the threading hole 3 of the frame 1. Instruction manual

The elastic piece 4 is disposed between adjacent two holes having a wire connection so as to be located just below the line. The threading hole 3 on the frame 1 has a large diameter, preferably 5 mm or more in diameter. When the wire is pulled and hit, the line does not touch the frame 1, so the wear of the frame 1 is substantially zero. When the racket hits the ball, the line is impacted by the ball to pull down the threading point 5 of the spring 4, so that the elastic stroke of the thread is greatly improved, and even if the cable has a high number of pounds, it can have good elasticity, which is good. The returning power reduces the amount of energy that can be oscillated, and can be controlled with a higher number of pulls. When the shot is over, the frame 1 and the line return to their original positions, and the residual energy is caused. Oscillating, but at this time, the elastic piece 4 in the stress state between the frame 1 and the line serves to reciprocate the elastic recovery of the buffer frame 1 and the line and to consume the reciprocating shock energy, so that the residual energy causes the vibration. It is also very small, achieving the purpose of the utility model, and the structure of the shrapnel type is simple and reliable, and is not easily damaged. Since the soft cushion material is not used for damping, the hand feeling information is real and the cost is low, especially using carbon. After the material, the weight of the entire racket is not increased much, and the user can accept it.

As shown in FIG. 3, the second embodiment of the present invention differs from the first embodiment in that the elastic piece 4 is in an inverted L shape and is inserted into the rectangular hole card slot on the wall of the inner frame frame. In the second embodiment, the material is more economical, and the weight of the racket is increased. Since the slot of the frame 1 is not long, the strength of the frame 1 is not greatly affected.

As shown in FIG. 4, FIG. 5, FIG. 7, FIG. 8, FIG. 9, FIG. 10 and FIG. 11, the third embodiment of the present invention, the elastic piece 4 and the frame 1 are integrated, and the elastic piece 4 shown in FIG. 5 and FIG. It is the upward extension of the frame wall 1, that is, the support point of the elastic piece is on the side of the elastic piece, the elastic piece 4 is arranged in a spaced relationship, and the threading point 5 is suspended, and the optimal distance is 5 mm or more. The shrapnel 4 has a plurality of holes 6 which are arranged in a straight line with a diameter larger than the line 6, or a card line port 7 as shown in Fig. 9, and the shrapnel 4 is disposed between the adjacent holes of the wire connection. The racket frame 1 is a double-layered frame of a large cylindrical sleeve semi-cylindrical as shown in Fig. 8. The semi-cylindrical cylinder is disposed on the outer wall side of the large cylindrical frame, and the elastic piece 4 is disposed on the outer wall of the semi-cylindrical and large cylinders, and the outer wall is Made out of hollow. The threading hole 3 on the frame 1 has a large diameter, preferably 5 mm or more in diameter. After the thread is pulled, the line does not touch the frame 1, so that the wear of the frame 1 is substantially zero. The entire racket frame 1 and the shrapnel 4 are made of a carbon fiber material. This structure makes the elastic piece 4 and the frame body well combined, the material is economically high, the structure is firm and reliable, the stability is high, the elastic stroke of the wire is increased, and the internal stress of the elastic piece 4 after the wire is pulled causes the racket to be reduced. The vibration is good, the elastic stroke of the shrapnel 4 causes the sweet spot of the racket to increase, and the direct contact between the line and the frame 1 causes the tremor to pass true, the feel is clearer than the previous racket, and the energy storage of the shrapnel 4 causes the racket to rebound back with a great force. The ball is more labor-saving, and the shrapnel 4 can withstand a very high number of pull wires, so the control is also good under the premise of good elasticity. The shrapnel 4 can also cushion the impact of the hitting ball on the frame 1 and the line, making the equipment more durable, shooting Box 1 and the traditional frame are basically the same, and the wire drawing machine has no inconvenience in use, and the purpose of the utility model is realized more simply.

Another embodiment of the frame layer in the third embodiment of the present invention is shown in FIG. 10. The racket frame 1 is a two-half cylinder bonded and integrated structure, and the elastic piece 4 is disposed on one of the semi-cylinders. Made out of hollow. The advantage of this structure is that the upper and lower half-cylinder frames can be made of different materials. For example, the semi-cylinder with the elastic piece 4 can use a material with better toughness, so that the elasticity of the elastic piece 4 is better, and the strength of the other semi-cylinder is used. The higher material makes the whole racket stronger and the ball is better controlled, which has both strong strength and elastic toughness, and achieves the pendulum requirement in the direction of the racket. Description

The high strength and the high toughness required in the centripetal direction of the racket frame are unified on a racket frame, and the new design purpose is more fully utilized. In addition, the solution can also be made into a semi-cylindrical one-side semi-cylindrical structure with a small semi-cylindrical side. The shrapnel is arranged on a relatively small semi-cylinder to increase the elastic stroke. The relatively large semi-cylinder supports the entire ball. The effect of the strength, which makes the overall strength of the racket higher.

Another embodiment of the frame layer of the third embodiment of the present invention is shown in FIG. 11. The racket frame 1 is a thickened structure on the outer wall of the frame, and the elastic piece 4 is disposed on the frame wall of the thickened side. It is made up of this frame wall. This structure is the most material-saving way. A layer of very high-strength material is added to the outer layer. The elastic piece 4 is placed on the thickened side frame wall, which ensures the elasticity of the elastic piece 4 and ensures that the outer wall is hollowed out. There is also enough strength to support the entire frame.

As shown in FIG. 6 , in the fourth embodiment of the present invention, the elastic piece 4 is also disposed on the outer side wall of the frame 1 , except that the position of the root support point of the elastic piece 4 is slightly different, and the support point is disposed between the two threading holes 3 , Although the structure is smaller in the elastic stroke than in the third embodiment, the hollowing of the frame wall is not vertically smooth as in the third embodiment, so that the outer wall of the layer of the racket retains a plurality of lateral beams 8, which The beam 8 plays a good supporting role for the frame 1, so that the fourth embodiment can use the thinner wall material or less wall layer to achieve the same overall strength of the frame, which is beneficial to reduce the weight of the whole frame. .

Another embodiment of the fourth embodiment of the present invention can also be as shown in FIG. 32, the support point of the elastic piece is on the side wall of the frame 1 , and between the two elastic pieces 4 on the outer side wall of the frame 1 is provided. The transverse beam 15 , although in some positions, the line will pass over the beam 15 , resulting in the elastic stroke of the position of the elastic piece 4 not being maximized, affecting part of the elasticity, but it plays a good role in the strength support of the frame 1 and can be reduced. The overall material of the frame is good for weight reduction.

In the fifth embodiment of the present invention, as shown in FIG. 12, FIG. 13, FIG. 14, FIG. 15, FIG. 16, FIG. 27, FIG. 28 and FIG. 29, the elastic piece 4 is disposed in the groove 9 on the frame 1, the groove 9 The narrow side width of the groove side wall 10 just clamps the elastic piece 4, and the elastic piece 4 can be easily installed and taken out. The frame 1 is provided with a threading hole 3, and the elastic piece is provided with a hole 6 and a wire groove 13 . The difference is that the elastic piece 4 of the fifth embodiment is embedded in the recess 9 of the frame 1, so that the elastic piece 4 is hidden inside the frame 1, and the elastic piece and the wire are protected from external wear and tear. 4 is provided with a threaded hole 6 and a wire groove 13 capable of catching the wire, which functions to stabilize and protect the wire bed, and the groove 13 can also function to promote the deformation of the elastic piece 4, the side wall 10 of the groove The structure can make the shrapnel 4 not only get stuck but also can be taken out. We can replace the shrapnel 4 of different strength and toughness at any time to adapt to the needs of different players or playing styles. The shrapnel 4 is m-shaped and can withstand the high-strength cable pounds. Pressure, but also has considerable flexibility and cushioning, in addition we can install on the side and top of the racket The shrapnel 4 with the same strength and toughness adapts to different elastic requirements. The shrapnel 4 with different strength and toughness can be painted with different colors for easy distinction. The structure of the shrapnel increases the area of the sweet spot, slows down the vibration, increases the rebounding force, and feels The tremor information is true. When the number of pounds is high, the wire bed is still very elastic, and the impact of the ball on the frame 1 and the line is buffered, and the life of the device is extended. The structure of the fifth embodiment is more suitable for a relatively large frame. For example, it is suitable for tennis rackets and squash rackets. If there is a thin cushion between the shrapnel 4 and the frame 1, it can make the hand feel soft and not too much to reduce the real feel of the chatter. The front end is deeper than the rear end, and is gradually shallower from the front end to the rear end of the frame 1, as shown in Fig. 27, the broken line 14 is a schematic representation of the depth of the bottom of the groove 9 of the frame 1, as shown in Figs. 28 and 29. Show, the concave at the top of frame 1 Description

The groove 9 is deeper than the depth of the groove 9 at the rear of the frame 1, so that the wire bed and the elastic piece 4 which often hit the front end of the floor can be protected, and the strength of the top of the frame 1 is higher than that of the middle and the rear. The demand is low, so this solution does not affect the strength of the frame 1 in use. As shown in Fig. 15 and Fig. 16, the lubrication of the pulley 11 or the semicircular inner wall is provided at the threading hole 3 of the frame 1. The hole sleeve 12 can relieve the wear of the wire at the threading hole 3 due to the elastic expansion and contraction of the elastic piece 4. As shown in FIG. 13, a fairing 16 can be disposed outside the frame 1 to reduce the swing. The windshield, the fairing 16 can be smooth on the outside and has a self-adhesive sticker, which is easy to disassemble at any time.

In the sixth embodiment of the present invention, as shown in FIG. 17, FIG. 18 and FIG. 19, the elastic piece 4 is disposed in the groove 9 on the frame 1, and the groove side wall 10 of the groove 9 just clamps the elastic piece 4, and the elastic piece 4 can be It is easy to install and remove. The frame 1 is provided with a threading hole 3, and the elastic piece is provided with a hole 6 and a wire groove 13 . The difference from the fifth embodiment is that the elastic piece 4 has a cross section of a zero shape, and the elastic piece can withstand Very strong pull-up pounds, the shrapnel is more stable, suitable for high-powered players. The threading hole at the bottom of the shrapnel 4 is larger than the punching hole 3 of the frame, which can reduce the weight of the racket, because the whole frame 1 is The strength support is small.

In the seventh embodiment of the present invention, as shown in FIG. 20 and FIG. 21, the elastic piece 4 is disposed in the groove 9 on the frame 1, and the groove side wall 10 of the groove 9 just grips the elastic piece 4, and the elastic piece 4 can be easily installed and The elastic piece 6 is provided with a hole 6 and a wire groove 13 . The difference from the fifth embodiment is that the elastic piece used is a c-shaped one-arm type elastic piece 4 , and the elastic piece 4 has stronger toughness and more elastic deformation and deformation stroke. Long, the buffering effect is better, the sweet spot is more effective, the hand feel is softer, and it is suitable for the technical type of the cable with a low number of pounds. In addition, the outer side of the frame 1 is provided with a fairing 16 for reducing grooves and shrapnel. The resulting windshield, the fairing 16 can be smooth on the outside and has a self-adhesive sticker, which is easy to disassemble at any time. The threading hole at the bottom of the elastic piece 4 is larger than the threading hole 3 of the frame, which can reduce the weight of the racket, because the whole shot is taken here. The strength support of Box 1 is small.

As shown in FIG. 22 and FIG. 23, the eighth embodiment of the present invention is a large and small two cylinders combined into a frame 1, the small cylinder is embedded in the groove 9 of the large cylinder, and the elastic piece 4 is a small cylinder. The elastic piece 4 is provided with a hole 6 and a groove 13, and the small cylinder and the large cylinder are combined in a bonding or engaging manner, and the small cylinder in the groove 9 can select a material with high toughness, and the outer large cylinder can be selected. The material with high strength, such as the overall strength of the frame 1 is high, the pendulum is small when hitting the ball, the ball is powerfully controlled, and the small cylinder acts as a buffer for the wire bed in the centripetal direction, reducing the tremor and storing energy. , to increase the sweet zone and increase the resilience, because it does not need to use soft mat material to absorb shock, the feel is very real, if there is a thin layer of soft mat material buffer between the large cylinder and the small cylinder, then The feel will be softer, but it will lose a little bit of tremor information, which can be set according to the needs of different players. The shrapnel 4 can withstand the strong number of cable pulls, so this structure is suitable for players with high cable counts, shrapnel Bottom of 4 The threading hole is larger than the threading hole of the frame 3, which can reduce the weight of the racket, because the strength support of the entire frame 1 is small, and the groove 13 not only functions as a fixed line bed but also promotes the deformation of the spring 4.

In the embodiment 9 of the present invention, as shown in FIG. 24, the elastic piece 4 is disposed on the groove 9 on the frame 1, and the groove 9 is two narrow grooves. The inner wall of the groove 9 just bears against the end of the elastic piece 4, and the elastic piece 4 It can be stuck on the frame 1 and can be easily installed and removed. The elastic piece 4 is provided with a hole and a wire groove 13 . The difference from the fifth embodiment is that the elastic piece 4 is not integrally embedded in the frame 1 but inserted at the end. The way, this structure is more suitable for the thin frame of the product, such as the badminton frame, occupying the frame 1 small size, play Description

The same effect, only the shrapnel 4 is easily knocked off by the force of the external force, but the badminton's batting strength is not great, just fit.

The tenth embodiment of the present invention is as shown in FIG. 25, and the difference from the embodiment 9 is that the groove 9 is two narrow grooves provided on both sides of the frame 1, and the structure is more suitable for a relatively thin frame structure. For example, a badminton racket, and because the two sides of the elastic piece 4 are stuck on both sides of the frame 1, a very stable structure is formed, and it is not easy to be disengaged even if it is subjected to an external impact, but the weight of the elastic piece is slightly heavier than that of the embodiment 9, and this needs to be Make adjustments to the material configuration.

In the eleventh embodiment of the present invention, as shown in FIG. 26, the c-shaped elastic piece 4 is disposed in the groove 9 on the frame 1, and the groove side wall 10 of the groove 9 just grips the elastic piece 4, and the elastic piece 4 can be easily installed and The bobbin is provided with a hole and a wire groove 13 , and the difference from the seventh embodiment is that the frame size is small, and the badminton frame is not suitable for the small frame of the frame, and the frame 1 is externally The obvious groove 9 will have a large wind resistance, and the fairing can be added to the outer frame to reduce the wind resistance of the gap between the elastic pieces 4.

According to the embodiment 12 of the present invention, as shown in FIG. 30 and FIG. 31, the frame 1, the elastic piece 4, the threading hole 3 on the frame 1, the groove 9, the hole 6 on the elastic piece 4, and the wire groove 13 are Another difference of the third embodiment of the frame layer is that the two semi-cylinders in the frame 1 are small semi-cylinders embedded in the grooves 9 of the large semi-cylinder, and the elastic pieces 4 are arranged on the small semi-cylindrical The cylinder is hollowed out, and the shrapnel 4 has a c-shaped cross section. This structure is most suitable for a product structure with a small number of pounds and a fine frame, such as a badminton racket frame. The elastic deformation of the shrapnel 4 grows and can achieve good elasticity. The sweet spot is enlarged, and the structure is stable, and the overall weight is not large. The threading hole at the bottom of the elastic piece 4 is larger than the threading hole 3 of the frame, which can reduce the weight of the racket, because the strength support of the entire frame 1 is small. A fairing cover 16 is affixed to the outermost side of the frame 1, and the fairing 16 has a smooth outer surface and a sticker on the inner side, which can be attached to the outer side of the frame 1 at any time to cover the gap between the elastic pieces 4. Reduce the wind resistance in the swing.

Claims

Claim

1. A tennis racket, squash racket or badminton racket for shock absorption and bombardment, comprising a head frame (1) for hitting the ball and a handle (2) extending downward from the head frame, the head frame A threading hole (3) is provided, wherein a thread for hitting the ball can be worn, characterized in that: between the string and the frame (1), a plurality of elastic threads are provided for tensioning the outer side of the frame (1) Shrapnel (4).

2. A tennis racket, squash racket or badminton racket according to claim 1, characterized in that: the elastic piece (4) is stuck or carried on the racket frame (1), and the thread of the spring piece (4) is threaded. (5) There is a gap of 1 mm or more in the direction of the vertical frame wall with the frame wall.

3. The tennis racket, squash racket or badminton racket according to claim 1, wherein: the elastic piece (4) and the frame (1) are integrated, and one end thereof is combined with the frame (1). , the threading point (5) is suspended.

4. The tennis racket, squash racket or badminton racket according to claim 1 or 2, wherein: the elastic piece (4) is embedded in a recess (9) on the frame (1), and can replace.

5. A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that: the cross section of the elastic piece (4) is curved, V-shaped, inverted L-shaped, inverted V-shaped , C-shaped or S-shaped.

A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that the cross section of the elastic piece (4) is n-shaped, 0-shaped or m-shaped.

7. A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that the spring piece (4) has a plurality of holes (6) or card line openings having a diameter larger than a line. 7).

The tennis racket, squash racket or badminton racket according to claim 1 or 3, wherein: the racket frame (1) is a double cylinder frame of a large cylinder sleeve semi-cylindrical, and the semi-cylindrical cylinder is disposed on the large cylinder. On the side of the outer wall of the frame, the elastic piece (4) is provided on the outer wall of the semi-cylinder and the large cylinder to the outside of the entire frame.

The tennis racket, squash racket or badminton racket according to claim 1 or 3, wherein: the racket frame (1) is a structure in which two semi-cylinders are bonded and integrated, and the elastic piece (4) is disposed on One of them is on a half cylinder.

The tennis racket, squash racket or badminton racket according to claim 1 or 3, wherein: the racket frame (1) is a structure thickened on a semi-cylindrical outer wall of the frame, and the elastic piece (4) is disposed on Thicken the side of the frame wall.

A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that the elastic piece (4) is a material containing carbon fibers or other rayon fibers.

A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that: the elastic piece (4) is provided with a wire groove (13).

The tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that: the threading hole (3) of the racket frame (1) is provided with a pulley (11) or a semicircle Lubrication hole sleeve (12) on the inner wall.

A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that a cushion is provided between the elastic piece (4) and the frame (1).

A tennis racket, squash racket or badminton racket according to claim 4, characterized in that the groove (9) is deeper at the front end of the frame (1) than at the rear end.

16. A tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that Claim

There is: a fairing (16) is arranged outside the racket frame (1).

The tennis racket, squash racket or badminton racket according to claim 1, 2 or 3, characterized in that: between the two adjacent elastic pieces (4) on the outer side wall of the racket frame (1), a lateral direction is provided. Beam (8).