TWM656450U - Vibration-damping grip structure of badminton racket - Google Patents

Abstract

The present invention proposes a vibration-damping handle structure for a badminton racket, comprising: a main body, a front sleeve and a rear end cover respectively mounted on the front and rear ends of the main body; an inner core of a different material is arranged inside the main body, the inner core is connected to the main body by a plurality of ribs arranged on the outer side of the inner core, a vibration-damping body is arranged between the ribs at the middle and rear sections of the inner core and the outer surface of the inner core, and the inner wall surface of the inner core has a plurality of protruding coupling bodies. The middle tube passes through the front sleeve and is inserted between the inner core combination body. The combination body can increase the combination tightness with the middle tube and reduce the vibration transmitted to the main body when the middle tube is subjected to force. The inner core of different materials can also increase its structural strength; on the other hand, the vibration damper can absorb the external force from the middle tube when hitting the ball, thereby suppressing and reducing the vibration transmitted to the main body, which can meet the complete release of power during swinging and the control of the rotation direction of the better racket face angle.

Description

Vibration-damping grip structure of badminton racket

This novel invention relates to the structure of a badminton racket, in particular to a vibration-damping handle structure of a badminton racket.

The structure of a badminton racket consists of three parts: the head frame, the middle tube and the grip. The head frame is threaded to form the hitting surface, and the head frame is connected to the grip through the middle tube. Traditional badminton racket grips are usually made of stronger and less prone to breaking wood. In addition to the fact that wood is easy to obtain, easy to process, and low in price, wood has a good damping effect, which helps absorb the vibration generated when the racket hits the ball.

In order to reduce the vibration generated when the racket hits the ball, in addition to choosing wood to make the badminton racket grip, another way is to wrap the grip cloth around the outside of the badminton racket grip. The grip cloth can absorb vibration through the elasticity of the material itself. Other functions of the grip cloth include: adjusting the coarseness of the badminton racket grip, even slightly changing the balance point of the badminton racket, increasing the comfort of holding, absorbing sweat, and providing anti-slip effect. According to the difference in materials used, common grip cloths can basically be divided into PU material grip cloths and towel grip cloths. Traditional grip cloth is wrapped around the outside of the grip after the grip is manufactured, especially after the entire badminton racket is manufactured. It cannot be reliably fixed to the grip. After a period of use, the grip cloth will loosen, produce odor or wear due to sweat or other external factors. Even the grip made of wood will deteriorate or be damaged due to the penetration of sweat. On the other hand, the replacement of the above grip cloth takes a long time and is inconvenient to use.

A badminton racket is proposed in an approved Taiwan invention patent (certificate number I772198), which includes a racket frame, a grip, a front cover and a middle tube. The grip includes a grip portion, a sleeve portion, a fixing member, a plurality of supporting members and an adjustment ring. The grip portion has a front end. The sleeve portion is connected to the front end of the grip portion. The sleeve portion has a first top surface and a first opening, and the first opening is located at the first top surface. The fixing member is connected to the first top surface and extends from the first opening to the inside of the grip portion. The supporting members are arranged in the grip. The supporting members respectively have a front edge and a recess. The front edge is connected to an inner side wall of the sleeve portion, and the recess is located at the front edge. The adjustment ring is arranged in the recess of the supporting members. The front sleeve is mounted on the sleeve portion of the grip. One end of the middle tube is connected to the racket frame, and the other end passes through the first opening to be inserted into the fixing member.

However, the middle tube of the above-mentioned invention is inserted into the sleeve part; multiple supporting parts are arranged on the grip part, and the front edge of the supporting parts is connected to one of the inner walls of the sleeve part. When the incoming badminton directly hits the racket face, the impact force is transmitted through the middle tube. Although the multiple supporting parts can disperse the impact force, they cannot achieve the effect of shock absorption or absorption. The vibration will cause discomfort to the palm and arm.

On the other hand, the set, multiple supporting parts and the handle are made of the same plastic material. If the material is relatively hard, such as adding carbon fiber, the whole racket is too hard and the elastic coefficient is insufficient. In addition to the poor grip of the handle, the resonance or vibration will cause discomfort, and the racket is also easy to break and has poor durability. If the material is relatively soft, such as nylon plastic, the whole racket is not rigid enough, the force of hitting the ball cannot be effectively released, and the insufficient structural strength makes it difficult to control the rotation direction of the racket face angle, thereby affecting the performance of the return ball.

The purpose of this new model is to propose a vibration-damping grip structure for a badminton racket, which can absorb the external force from the middle shaft when hitting the ball, thereby suppressing and reducing vibration and providing better control of the rotation direction of the racket face angle.

A preferred embodiment of the vibration-damping handle structure of the new badminton racket comprises: a main body, a front sleeve mounted on the front end of the main body, and a rear end cover mounted on the rear end of the main body, wherein the interior of the front sleeve is hollow and has a through hole for a middle tube of the badminton racket to pass through; wherein the main body is a hollow tubular body, the cross-sectional shape of the main body is an octagon, an inner core is arranged at the center of the interior of the main body, and the inner core is an axially penetrating tubular component, the middle tube is inserted into the inner core and fixed therein, and the outer side of the inner core has Several ribs protrude outward along the radiation direction, and the ends of the ribs in the extension direction are connected to the inner wall surface of the main body. A gap is formed between the outer surface of the middle and rear section of the inner core and the ribs, and a vibration damper is arranged in the gap. The inner wall surface of the inner core has several joints protruding toward the center direction, and the joints extend along the axial direction parallel to the inner core. The joints are used to clamp the middle tube; the vibration damper is made of elastic material, and the main body and the ribs are made by injection molding technology.

Preferably, the cross-section of the main body is a non-regular octagon, and the center of the cross-section of the main body is defined as the coordinate origin O of the rectangular coordinate system. The cross-section of the main body below the X-axis and above the X-axis are symmetrical to each other, and the cross-section of the main body to the right of the Y-axis and to the left of the Y-axis are symmetrical to each other. The octagon is arranged in sequence from the positive X-axis in a counterclockwise direction, including the first to the eighth sides, the first to the eighth corners, the first corner is the connection between the first and second sides, and the positions of the remaining corners are By analogy, the first and fifth sides are perpendicular to the X-axis, the third and seventh sides are perpendicular to the Y-axis, and the angle between the line connecting the second corner point and the coordinate origin O and the positive Y-axis is 32.5°; the ribs include: a first rib, a second rib, a third rib and a fourth rib, the end of the first rib is connected to the position of the second corner point, the end of the second rib is connected to the position of the third corner point, the end of the third rib is connected to the position of the sixth corner point, and the end of the fourth rib is connected to the position of the seventh corner point.

Preferably, the inner wall surface of the main body is formed with an engagement groove at the positions of the 2nd, 3rd, 6th and 7th corner points, and the ends of the 1st to 4th ribs can be respectively embedded in these engagement grooves.

Preferably, the end surfaces of the combined bodies in contact with the middle tube are arc surfaces or circular arc surfaces.

Preferably, the material of the main body includes: nano nylon 6 (PA6), and a composite material composed of nano nylon 6 (PA6) and 10% glass fiber (GF); the material of the core is carbon fiber.

Preferably, the material of the ribs includes: carbon fiber, and a composite material composed of nano-nylon (PA) and 10% glass fiber (GF).

Preferably, the material of the vibration damper includes any one of silicone, thermoplastic polyurethane (TPU), and thermoplastic rubber (TPR).

Preferably, the length of the middle and rear sections is 1/3 of the total length of the inner core.

Preferably, the combination extends in the middle front section of the inner core in an axial direction parallel to the inner core, and the length of the middle front section is 1/3 of the total length of the inner core.

The advantages and functions of the vibration-damping handle structure of the new badminton racket are: it can absorb the external force from the middle shaft when hitting the ball, thereby suppressing and reducing vibration; the main body and the inner core of the handle are made of different materials, and the components of different materials provide excellent structural strength, which can meet the requirements of complete release of power and better control of the rotation direction of the racket face angle when swinging. It can replace the traditional wooden handle and improve the shortcomings of the above-mentioned previous technology, and can be quickly produced and formed.

The specific implementation method, technical features and effects of this new type will be explained below with the help of diagrams.

10: Main body

11: Front-end

12: Fitting groove

121: protrusion

20: Front casing

21:Through hole

22: Tightening bolt

30: Rear end cover

40: Middle pipe

50: Inner core

51: Ribs

52: Gap

53: Vibration damper

54:Combination

L1: middle and back section

L2: mid-front section

P1: 1st corner point

P2: The second corner point

P3: The third corner point

P4: 4th corner point

P5: The 5th corner point

P6: The 6th corner point

P7: The 7th corner point

P8: The 8th corner point

S1: Side 1

S2: Side 2

S3: Side 3

S4: Side 4

S5: Side 5

S6: Side 6

S7: Side 7

S8: Side 8

Figure 1 is an appearance structure diagram of an embodiment of the present invention.

Figure 2 is a structural exploded view of the embodiment of Figure 1.

Figure 3 is a structural cross-section diagram at the A-A position in Figure 1.

Figure 4 is a structural cross-section diagram at the B-B position of Figure 2.

Figure 5 is a radial cross-sectional view of an embodiment of the inner core structure.

Figure 6 is an axial cross-sectional view of an embodiment of the inner core structure.

Figure 7 is a structural exploded view of another embodiment of the handle of the new badminton racket.

In the embodiments disclosed in the patent specification and drawings of this new type, the directions mentioned therein (such as up, down, left, right, front and back) are based on the contents shown in the drawings and are used to illustrate the relative relationships between the various elements or structures in the embodiments (such as positional relationships, connection relationships and action relationships).

Please refer to Figures 1 and 2, which are the appearance structure diagram and the structure decomposition diagram of a preferred embodiment of the new model. An embodiment of the vibration-damping handle structure of the new badminton racket includes: a main body 10, a front sleeve 20, and a rear end cover 30.

The front sleeve 20 and the rear end cover 30 are preferably manufactured by injection molding technology, and the front sleeve 20 and the rear end cover 30 are made of either nano nylon (PA) or engineering resin (ABS) as the material. The front sleeve 20 is assembled at the front end 11 of the main body 10, and the rear end cover 30 is assembled at the rear end of the main body 10. The front end 11 of the main body 10 is in the shape of a cone, and the front sleeve 20 is also in a matching cone shape and can be sleeved on the front end 11 of the main body 10. The interior of the front sleeve 20 is hollow and has a through hole 21 for the middle tube 40 of the badminton racket to pass through. A clamping bolt 22 is provided to pass through the front sleeve 20 and the front end 11 of the main body 10. The clamping bolt 22 is used to lock the middle tube 40 to prevent the front sleeve 20 and the middle tube 40 from being separated from the main body 10.

The main body 10 is a hollow tubular body. An inner core 50 is disposed in the center of the main body 10. The inner core 50 is an axially penetrating tubular component. The middle tube 40 of the badminton racket is inserted into the inner core 50 after passing through the front sleeve 20 and fixed therein. The outer side of the inner core 50 has a plurality of ribs 51 extending outwardly along the radiation direction. The ends of the ribs 51 in the extending direction are connected to the inner wall surface of the main body 10 (see FIG. 3). A gap 52 is formed between the middle and rear sections L1 (see FIG. 6 ). Preferably, the length of the middle and rear sections L1 is 1/3 of the total length of the inner core 50. A vibration damper 53 is disposed in the gap 52. Preferably, the vibration damper 53 surrounds the outer surface of the middle and rear sections L1 of the inner core 50. The vibration damper 53 is used to absorb the external force from the middle tube 40 when hitting the ball, thereby suppressing and reducing the vibration transmitted to the main body 10. In a preferred embodiment, the material of the inner core 50 is carbon fiber. fiber), the inner core 50 made of a different material from the main body 10 can increase its structural strength and better withstand the external force and impact from the middle tube 40; the material of the vibration damper 53 includes: any one of silicone, thermoplastic polyurethane (TPU), and thermoplastic rubber (TPR); the material of the rib 51 includes: any one of carbon fiber and a composite material composed of nano nylon (PA) and 10% glass fiber (GF) (PA+10% GF).

Please refer to Figure 2. In a preferred embodiment, the main body 10 and the vibration damper 53 are made by injection molding technology. First, the main body 10 is made by injection molding technology, and then the main body 10 is moved to another mold. Then, the soft rubber is injected into the preset position of the vibration damper 53 by injection molding technology, and the vibration damper 53 is formed by the soft rubber with vibration absorption effect and coated on the outer side of the middle and rear section L1 of the inner core 50. The material of the main body 10 includes: nano nylon 6 (Polyamide 6, PA6), and nano nylon 6 (PA6) added with 10% glass fiber (Glass Fiber, GF) The composite material (PA6+10%GF) is either one of them.

Please refer to Figure 7. In another preferred embodiment, the main body 10 and the ribs 51 are made by injection molding technology, and the vibration damper 53 is pre-made into a circular tube and then sleeved at the preset position of the vibration damper 53; preferably, the circular tube vibration damper 53 is fixed to the outer side of the middle and rear section L1 of the inner core 50 and the gap 52 by gluing.

Please refer to Figures 3 and 4. The cross-sectional shape of the main body 10 is a polygon, preferably an octagon, so that the user can have a variety of gripping methods and hitting angles when holding the handle; in a preferred embodiment, the cross-sectional shape of the main body 10 is a non-regular octagon. From the cross-sectional shape (radial section) of the main body 10, referring to the definition of the rectangular coordinate system, the center of the cross-sectional shape of the main body 10 is the coordinate origin O of the rectangular coordinate system, the shapes below the X axis and above the X axis are symmetrical to each other, and the shapes to the right of the Y axis and to the left of the Y axis are symmetrical to each other. Symmetrical, the octagon is arranged in a counterclockwise direction from the positive X-axis, including the 1st side S1 to the 8th side S8, the 1st corner point P1 to the 8th corner point P8, the connection between the 1st side S1 and the 2nd side S2 is the 1st corner point P1, and the positions of the remaining corner points (2nd corner point P2 to 8th corner point P8) are similar; the 1st side S1 and the 5th side S5 are perpendicular to the X-axis, the 3rd side S3 and the 7th side S7 are perpendicular to the Y-axis, and the angle between the line connecting the 2nd corner point P2 and the coordinate origin O and the positive Y-axis is 32.5° (see Figure 4).

In a preferred embodiment, the outer side of the inner core 50 has a total of four ribs 51, namely the first rib to the fourth rib, the end of the first rib is connected to the position of the second corner point P2, the end of the second rib is connected to the position of the third corner point P3, the end of the third rib is connected to the position of the sixth corner point P6, and the end of the fourth rib is connected to the position of the seventh corner point P7. In a preferred embodiment, the inner wall surface of the main body 10 is formed with an engagement groove 12 at the positions of the second, third, sixth, and seventh corner points (see Figure 4), and the first rib to the fourth rib are connected to the second corner point P2, the third corner to the third corner P3, the third corner to the sixth corner P6, and the fourth corner to the seventh corner P7. The end of the fourth rib can be respectively embedded in the embedding grooves 12. One implementation of the embedding groove 12 is defined by two protrusions 121 protruding from the inner wall of the main body 10. Preferably, the protrusion 121 extends along the axial direction parallel to the main body. The inner core 50 is inserted into the main body 10 along the axial direction of the main body 10. After the ends of the first to fourth ribs are respectively embedded in the embedding grooves 12, the ends of the four ribs 51 are respectively connected to the main body 10 using ultrasonic fusion technology.

Please refer to FIG. 5. In a preferred embodiment, the inner wall of the inner core 50 has a plurality of coupling bodies 54 protruding toward the center. In a preferred embodiment, there are 6 coupling bodies 54, which are evenly arranged at equally divided circumferential positions of the inner wall of the inner core 50. The coupling bodies 54 extend in an axial direction parallel to the inner core 50. In a preferred embodiment, the coupling bodies 54 are arranged in the middle front section L2 of the inner core 50 along the parallel The inner core 50 extends in the axial direction. Preferably, the length of the middle front section L2 is 1/3 of the total length of the inner core 50 (see Figure 6). The coupling body 54 is used to clamp the middle tube 40. Preferably, the end surface of the coupling body 54 in contact with the middle tube 40 is an arc surface or a circular arc surface. The function of the coupling body 54 is to increase the combination tightness with the middle tube 40 and reduce the vibration transmitted to the main body 10 when the middle tube 40 is subjected to force.

Although the present invention has been disclosed through the above-mentioned embodiments, it is not intended to limit the present invention. Anyone familiar with similar techniques can make some changes and modifications within the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be subject to the definition of the claims attached to this specification.

10: Main body

11: Front-end

12: Fitting groove

20: Front casing

21:Through hole

22: Tightening bolt

30: Rear end cover

50: Inner core

51: Ribs

52: Gap

53: Vibration damper

Claims (9)

A vibration-damping handle structure for a badminton racket comprises: a main body, a front sleeve mounted on the front end of the main body, and a rear end cover mounted on the rear end of the main body, wherein the interior of the front sleeve is hollow and has a through hole for a middle tube of the badminton racket to pass through; the characteristics are: The main body is a hollow tubular body, and the cross-sectional shape of the main body is an octagon. An inner core is arranged in the center of the main body. The inner core is an axially penetrating tubular component. The middle tube is inserted into the inner core and fixed therein. The outer side of the inner core has a plurality of ribs protruding outward along the radiation direction. The ends of the ribs in the extension direction are connected to the inner wall surface of the main body. A gap is formed between the outer surface of the middle and rear section of the core and the rib, and a vibration damper is arranged in the gap. The inner wall surface of the inner core has a plurality of coupling bodies protruding toward the center, and the coupling bodies extend along the axial direction parallel to the inner core. The coupling bodies are used to clamp the middle tube. The vibration damper is made of elastic material, and the main body and the ribs are made by injection molding technology. The vibration-damping handle structure of the badminton racket as described in claim 1, the cross-section of the main body is a non-regular octagon, the center of the cross-section of the main body is defined as the coordinate origin O of the rectangular coordinate system, the cross-section of the main body below the X-axis and above the X-axis are symmetrical to each other, the cross-section of the main body to the right of the Y-axis and to the left of the Y-axis are symmetrical to each other, the octagon is arranged in sequence from the positive X-axis in a counterclockwise direction including the 1st to 8th sides, the 1st to 8th corners, the connection between the 1st side S1 and the 2nd side S2 is the 1st corner, and the remaining corners are The positions are analogous to this, wherein the first side and the fifth side are perpendicular to the X-axis, the third side and the seventh side are perpendicular to the Y-axis, and the angle between the line connecting the second corner point and the coordinate origin O and the positive Y-axis is 32.5°; the ribs include: a first rib, a second rib, a third rib and a fourth rib, the end of the first rib is connected to the position of the second corner point, the end of the second rib is connected to the position of the third corner point, the end of the third rib is connected to the position of the sixth corner point, and the end of the fourth rib is connected to the position of the seventh corner point. As described in claim 2, the vibration-damping handle structure of the badminton racket has an interlocking groove formed on the inner wall surface of the main body at the positions of the second, third, sixth, and seventh corner points, and the ends of the first rib to the fourth rib can be respectively inserted into these interlocking grooves. In the vibration-damping handle structure of the badminton racket as described in claim 1, the end surfaces of the combined bodies in contact with the middle tube are arc surfaces or circular arc surfaces. The vibration-damping grip structure of the badminton racket as described in claim 1, the material of the main body includes: nano-nylon 6 (PA6), and a composite material composed of nano-nylon 6 (PA6) and 10% glass fiber (GF); the material of the inner core is carbon fiber. In the vibration-damping handle structure of a badminton racket as described in claim 5, the material of the ribs includes: carbon fiber, and a composite material composed of nano-nylon (PA) and 10% glass fiber (GF). As described in claim 1, the vibration-damping grip structure of the badminton racket, the material of the vibration-damping body includes: any one of silicone, thermoplastic polyurethane (TPU), and thermoplastic rubber (TPR). In the vibration-damping handle structure of the badminton racket as described in claim 1, the length of the middle and rear section is 1/3 of the total length of the inner core. As for the vibration-damping handle structure of the badminton racket described in claim 1, the combination body extends in the middle front section of the inner core in an axial direction parallel to the inner core, and the length of the middle front section is 1/3 of the total length of the inner core.

Images