CN103961849A - Racket frame - Google Patents
Racket frame Download PDFInfo
- Publication number
- CN103961849A CN103961849A CN201410037696.5A CN201410037696A CN103961849A CN 103961849 A CN103961849 A CN 103961849A CN 201410037696 A CN201410037696 A CN 201410037696A CN 103961849 A CN103961849 A CN 103961849A
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- Prior art keywords
- prepreg
- racket
- enhancement layer
- elasticity
- racket frame
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/14—Protection devices on the frame
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/022—String guides on frames, e.g. grommets
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/10—Frames made of non-metallic materials, other than wood
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
- A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Golf Clubs (AREA)
- Laminated Bodies (AREA)
Abstract
A head 4 of a racket frame has a gut groove 20. The head 4 includes side reinforcing layers 18. Each side reinforcing layer 18 is formed from a prepreg including carbon fibers and a matrix resin. The compressive elastic modulus of the prepreg is equal to or less than 100 GPa. The tensile elastic modulus of the prepreg is equal to or less than 100 GPa. The tensile elastic modulus of the carbon fibers is equal to or less than 160 GPa. Preferably, the prepreg includes amorphous carbon fibers.
Description
The present invention is directed to the Japanese patent application No.2013-16360 submitting on January 31st, 2013 and propose priority request, the full content of earlier application is incorporated by reference herein.
Technical field
The present invention relates to a kind of racket frame for tennis etc.Particularly, the present invention relates to the improvement of the enhancement Layer of the string of a musical instrument groove (gut groove) for racket frame.
Background technology
The framework of tennis racket is formed by fiber-reinforced resin.The matrix resin of fiber-reinforced resin is epoxy resin.The fiber of fiber-reinforced resin is carbon fiber.Described fiber is long fibre.Framework forms by being wound around multiple prepregs and solidifying the epoxy resin being included in each prepreg.The racket frame being formed by fiber-reinforced resin has been disclosed in JP2011-15885.
Racket frame has string of a musical instrument groove.The part that cord is arranged in the outside of framework is received in string of a musical instrument groove.Prevent the infringement of cord by string of a musical instrument groove.
General framework comprises enhancement Layer.Enhancement Layer is formed by the matrix resin generally extending at thickness direction and a large amount of carbon fiber.In the time of cross hit, a significant power puts on string of a musical instrument groove by cord.Prevent the breakage of the framework causing due to this power by enhancement Layer.
Near ball hits the happy district (sweet spot) of racket or happy district time, club is with transmitted at high speed.Near ball hits the happy district of racket or happy district time, it is little being transferred to athletic impulsive force.
In existing racket, in the time that ball hits the position away from the happy district of racket, ball is launched with low speed.In this racket, in the time that ball hits the position away from happy district, it is large being transferred to athletic impulsive force.Therefore,, in the time that ball hits the position away from happy district, sportsman can not swing racket completely.In addition,, in the time that ball hits the position away from happy district, sportsman can not maintain the direction of striking surface.
In the time impacting, sportsman's object is to bat near happy district or happy district.But in play, sportsman sometimes must be in the position batting away from happy district.The racket of expecting is in the time that ball hits the position away from happy district, still to have fabulous screen resilience.
The object of this invention is to provide the racket frame also with fabulous screen resilience in the time that ball hits the position away from the happy district of racket.
Summary of the invention
Racket frame according to the present invention comprises the racket head being formed by fiber-reinforced resin.Racket head comprises the enhancement Layer for string of a musical instrument groove.Enhancement Layer is formed by prepreg, and this prepreg comprises fiber and matrix resin.The modulus of elasticity in comperssion of prepreg is equal to or less than 100GPa.
Preferably, the tensile modulus of elasticity of prepreg is equal to or less than 100GPa.
Comprise the racket head being formed by fiber-reinforced resin according to the racket frame of another invention.Racket head comprises the enhancement Layer for string of a musical instrument groove.Enhancement Layer is formed by prepreg, and this prepreg comprises fiber and matrix resin.The tensile modulus of elasticity of fiber is equal to or less than 160GPa.
Comprise the racket head being formed by fiber-reinforced resin according to the racket frame of another invention again.Racket head comprises the enhancement Layer for string of a musical instrument groove.Enhancement Layer comprises amorphous carbon fiber and matrix resin.
Using according in the racket of framework of the present invention, in the time that ball hits the position away from happy district, the coefficient of resilience is higher.In the time that ball hits the position away from happy district, the operability of framework is fabulous.
Brief description of the drawings
Fig. 1 is the front view of racket frame according to an embodiment of the invention.
Fig. 2 is the side view of the racket frame in Fig. 1.
Fig. 3 is the viewgraph of cross-section along the amplification of the III-III line in Fig. 1.
Fig. 4 is the viewgraph of cross-section along the IV-IV line in Fig. 3; With
Fig. 5 shows racket frame in Fig. 3 and the viewgraph of cross-section of ring and cord.
Detailed description of the invention
Below will describe in detail according to the present invention of preferred embodiment with reference to accompanying drawing.
The racket frame 2 being presented in Fig. 1 and 2 comprises racket head 4, Liang Ge throat 6, dabber 8 and handle 10.Ring, handle band, end cap etc. attach to racket frame 2, thereby line extends the racket obtaining for standard ball tennis on racket frame 2.In Fig. 1, above-below direction is the axis direction of racket frame 2, and left and right directions is the width of racket frame 2.
Racket frame 2 is formed by fiber-reinforced resin.The matrix resin of fiber-reinforced resin is thermosetting resin.Thermosetting resin is epoxy resin typically.The fiber of fiber-reinforced resin carbon fiber typically.This fiber is long fibre.As shown in Figure 3 apparently, racket frame 2 is hollow.By being wound around multiple prepregs and solidifying the thermosetting resin being included in each prepreg, form racket frame 2.
Racket head 4 forms the profile of striking surface.The front shape of racket head 4 is generally oval.Oval long axis direction is consistent with the axis direction of racket frame 2.Oval short-axis direction is consistent with the width of racket frame 2.One end of each throat 6 is connected to racket head 4.Each throat 6 is connected to another throat 6 near of the other end of another throat 6.Throat 6 extends to dabber 8 from racket head 4.Extend the position that dabber 8 is connected to each other from Liang Ge throat 6.Dabber 8 forms to be integrally connected to throat 6.Handle 10 forms to be integrally connected to dabber 8.The part that racket head 4 is clipped between Liang Ge throat 6 is yoke portion 12.
As illustrated in fig. 1 and 2, racket head 4 comprises crown-reinforcing 14, yoke portion enhancement Layer 16 and both sides enhancement Layer 18.In Fig. 1 and 2, reference marker P1 represents the boundary point between crown-reinforcing 14 and each side enhancement Layer 18, and reference marker P2 represents the boundary point between yoke portion enhancement Layer 16 and each side enhancement Layer 18.
Fig. 3 is the viewgraph of cross-section along the amplification of the III-III line in Fig. 1.Fig. 4 is the viewgraph of cross-section along the IV-IV line in Fig. 3; In Fig. 3, left side is the outside of racket head 4, and right side is the inner side of racket head 4.As shown in Figure 3, racket head 4 has string of a musical instrument groove 20.String of a musical instrument groove 20 is formed on the outer surface of racket head 4.String of a musical instrument groove 20 has both side surface 22 and a basal surface 24.As shown in Figure 2, string of a musical instrument groove 20 extends along the circumferencial direction of racket head 4.
Fig. 3 and 4 shows side enhancement Layer 18.Side enhancement Layer 18 is formed by prepreg.The matrix resin of prepreg is epoxy resin.Prepreg comprises a large amount of carbon fibers.Each carbon fiber is upper extension of roughly thickness direction (left and right directions in Fig. 2) of racket frame 2.Side enhancement Layer 18 is formed with hardening epoxy resin by heating prepreg.Crown-reinforcing 14 and yoke portion enhancement Layer 16 form by the epoxy resin that solidifies other prepregs.
Fig. 5 shows racket head 4 and ring 26 and line 28.Ring 26 comprises flange 30 and pipe 32.Flange 30 contacts with the basal surface 24 of string of a musical instrument groove 20.Pipe 32 extends through racket head 4.A part for line 28 is arranged on flange 30 and along circumferencial direction.In addition, line 28 extends through pipe 32.
In the time that tennis hits racket, power puts on string of a musical instrument groove 20 by line 28.Side enhancement Layer 18 is arranged to around string of a musical instrument groove 20.In near of the basal surface 24 of string of a musical instrument groove 20, the carbon fiber of side enhancement Layer 18 extends on the thickness direction of racket frame 2.Side enhancement Layer 18 is strengthened string of a musical instrument groove 20.In the time that tennis hits racket, side enhancement Layer 18 prevents that racket head 4 is subject to breakage.Similarly, the carbon fiber of crown-reinforcing 14 and yoke portion enhancement Layer 16 also extend near the basal surface 24 of string of a musical instrument groove 20 on the thickness direction of racket frame 2.In the time that tennis hits racket, crown-reinforcing 14 and yoke portion enhancement Layer 16 also prevent that racket head 4 is subject to breakage.
The modulus of elasticity in comperssion of the prepreg of side enhancement Layer 18 is lower than the modulus of elasticity in comperssion of the prepreg of the enhancement Layer of existing racket frame.The plasticity that comprises the racket head 4 of side enhancement Layer 18 is fabulous.
Near tennis hits happy district or happy district time, line 28 extends fully.By extending, impact-absorbing.After extending, line 28 is back to original shape.Return by this, tennis is with transmitted at high speed.
In the time that tennis hits the position away from happy district, the elongation of line 28 is not sufficient.As mentioned above, the modulus of elasticity in comperssion of the prepreg of side enhancement Layer 18 is lower.Therefore,, in the time that tennis hits the position away from happy district, racket head 4 is out of shape together with line 28.By this distortion, impact-absorbing.Sportsman can swing racket completely in maintaining the direction of striking surface.After distortion, racket head 4 is back to its original shape.Return by this, tennis is with transmitted at high speed.
In this racket, in the time that tennis hits the position away from happy district, the distortion of racket head 4 is by insufficient distortion of compensating line 28.In the time that tennis hits the position away from happy district, shock absorbing capability, operability and the screen resilience of racket frame 2 are fabulous.The happy district of racket frame is wider.
As mentioned above, near tennis hits happy district or happy district time, line 28 extends fully.Therefore, be applied to the power of racket frame 2 by hitting less.The distortion that racket head 4 produces owing to hitting is less.In this racket, near tennis hits happy district or happy district time, there is not too much distortion.
In the present embodiment, the modulus of elasticity in comperssion of the prepreg of crown-reinforcing 14 is higher than the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18, and the modulus of elasticity in comperssion of the prepreg of yoke portion enhancement Layer 16 is higher than the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18.The modulus of elasticity in comperssion of the prepreg of crown-reinforcing 14 can equal the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18.The modulus of elasticity in comperssion of the prepreg of yoke portion enhancement Layer 16 can equal the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18.
Vertical line and x wire are formed by line 28.As mentioned above, the front shape of racket head 4 is generally oval, and oval long axis direction is consistent with the axis direction of racket frame 2.Therefore, the length of average vertical line is greater than the length of average transverse line.Conventionally, vertical line is more prone to extend than x wire.For the elongation difficulty of compensate for lateral line, preferably: the prepreg with low modulus of elasticity in comperssion is used to each side enhancement Layer 18; The prepreg with high modulus of elasticity in comperssion is used to crown-reinforcing 14; The prepreg with high modulus of elasticity in comperssion is used to yoke portion enhancement Layer 16.
The ratio of the modulus of elasticity in comperssion of the prepreg of the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18 and crown-reinforcing 14 is preferably equal to or less than 75%, is more preferably equal to or less than 50%, is especially preferably equal to or less than 25%.Consider the intensity of racket frame 2, this ratio is preferably equal to, or greater than 10%.
The ratio of the modulus of elasticity in comperssion of the prepreg of the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18 and yoke portion enhancement Layer 16 is preferably equal to or less than 75%, is more preferably equal to or less than 50%, is especially preferably equal to or less than 25%.Consider the intensity of racket frame 2, this ratio is preferably equal to, or greater than 10%.
Consider impact absorption, operability and resilience, the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18 is preferably equal to or less than 100GPa, is more preferably equal to or less than 65GPa, is especially preferably equal to or less than 35GPa.Consider the intensity of racket frame 2, this modulus of elasticity in comperssion is preferably equal to, or greater than 10GPa.Modulus of elasticity in comperssion is according to " JIS K7076 " canonical measure.
The prepreg with low modulus of elasticity in comperssion can have by combination the carbon fiber acquisition of low tensile modulus of elasticity.The concrete example with the carbon fiber of low tensile modulus of elasticity is amorphous carbon fiber.The prepreg with low modulus of elasticity in comperssion also can obtain by the fiber weight per unit area of carbon fiber (FAW, Fiber Area Weight) being arranged to little.
Be suitable for trade name " XN-05 ", " XN-10 " and " XN-15 " of concrete example graphite fibre company of Japan (Nippon GraphiteFiber Co., the Ltd.) manufacture of the carbon fiber of each side enhancement Layer 18.Particularly preferred carbon fiber is " XN-05 ".
Consider impact absorption, operability and resilience, the tensile modulus of elasticity of the prepreg of each side enhancement Layer 18 is preferably equal to or less than 100GPa, is more preferably equal to or less than 75GPa, is especially preferably equal to or less than 35GPa.Consider the intensity of racket frame 2, this tensile modulus of elasticity is preferably equal to, or greater than 10GPa.Tensile modulus of elasticity is according to " JIS K7073 " canonical measure.
Consider impact absorption, operability and resilience, the tensile modulus of elasticity of the carbon fiber of each side enhancement Layer 18 is preferably equal to or less than 160GPa, is more preferably equal to or less than 120GPa, is especially preferably equal to or less than 60GPa.Consider the intensity of racket frame 2, this tensile modulus of elasticity is preferably equal to, or greater than 20GPa.The tensile modulus of elasticity of this carbon fiber is according to the canonical measure of " JIS L1069 ".
The carbon fiber of each side enhancement Layer 18 can be resin type or PAN type.Consider impact absorption, operability and resilience, resin type carbon fiber is preferably.The prepreg of each side enhancement Layer 18 can comprise the fiber except carbon fiber.Prepreg can comprise the thermosetting resin except epoxy resin.
As mentioned above, the part of racket frame 2 except enhancement Layer 14,16 and 18 also formed by prepreg.Consider the intensity of racket frame 2, the modulus of elasticity in comperssion of prepreg is preferably higher than the modulus of elasticity in comperssion of the prepreg of each side enhancement Layer 18.The modulus of elasticity in comperssion of the prepreg of the part except enhancement Layer 14,16 and 18 is preferably equal to, or greater than 110GPa, is especially preferably equal to, or greater than 130GPa.
In Fig. 1, reference marker Pmax represents the point of the width maximum of racket frame 2.Arrow L1 represents the top side P1 of axis direction upside enhancement Layer 18 and puts the distance between Pmax.Arrow L2 is illustrated in the side P2 of yoke portion of axis direction upside enhancement Layer 18 and puts the distance between Pmax.
Consider impact absorption, operability and resilience, distance L 1 is preferably equal to, or greater than 4cm, is more preferably equal to, or greater than 6cm, is especially preferably equal to, or greater than 8cm.Distance L 1 is preferably equal to or less than 15cm.
Consider impact absorption, operability and resilience, distance L 2 is preferably equal to, or greater than 4cm, is more preferably equal to, or greater than 6cm, is especially preferably equal to, or greater than 8cm.Distance L 2 is preferably equal to or less than 15cm.
In Fig. 3 and 4, apparently, each side enhancement Layer 18 is positioned at the outside at the center of thickness.In other words, each side enhancement Layer 18 is positioned on the position of basal surface 24 that approaches string of a musical instrument groove 20.Each side enhancement Layer 18 contributes to the distortion of racket head 4.
In Fig. 4, arrow T1 represents the thickness of racket head 4, and arrow T2 represents the thickness from the basal surface 24 of string of a musical instrument groove 20 to side enhancement Layer 18.Consider impact absorption, operability and resilience, thickness T 2 is preferably equal to or less than 50% with the ratio of thickness T 1, is more preferably equal to or less than 40%, is especially preferably equal to or less than 30%.Ratio can be zero.
Example
[example 1]
Production is shown in the racket frame in Fig. 1 to 4.The modulus of elasticity in comperssion of each prepreg that is used to racket frame is as follows.
Side enhancement Layer: 32GPa
Crown-reinforcing: 129GPa
Yoke portion enhancement Layer: 129GPa
Other parts: 129GPa
The tensile modulus of elasticity of the carbon fiber of the prepreg of each side enhancement Layer is 54GPa.The fiber weight per unit area of the carbon fiber in prepreg is 100g/m
2.
[example 2]
Except the prepreg of the modulus of elasticity in comperssion with 64GPa is used to each side enhancement Layer, the racket frame of example 2 obtains in the mode same with example 1.The tensile modulus of elasticity of the carbon fiber of prepreg is 110GPa.The fiber weight per unit area of the carbon fiber in prepreg is 100g/m
2.
[example 3]
Except the prepreg of the modulus of elasticity in comperssion with 85GPa is used to each side enhancement Layer, the racket frame of example 3 obtains in the mode same with example 1.The tensile modulus of elasticity of the carbon fiber of prepreg is 155GPa.The fiber weight per unit area of the carbon fiber in prepreg is 100g/m
2.
[comparative example 1]
Except the prepreg of the modulus of elasticity in comperssion with 129GPa is used to each side enhancement Layer, the racket frame of comparative example 1 obtains in the mode same with example 1.The tensile modulus of elasticity of the carbon fiber of prepreg is 230GPa.The fiber weight per unit area of the carbon fiber in prepreg is 100g/m
2.
[example 4]
Except the fiber weight per unit area of the carbon fiber in prepreg is 70g/m
2, the racket frame of example 4 obtains in the mode same with comparative example 1.The tensile modulus of elasticity of the carbon fiber of prepreg is 230GPa.
[assessment]
Encircle, hold band, end cap and line and be mounted to each racket frame to produce tennis racket.Tennis racket is fixed, and makes tennis clash into each point in first to the 18 on striking surface with the speed of 30m/s, and measures the coefficient of resilience.The coordinate (x, y) of each point is as follows.
The first point: (0,12)
Second point: (0,15)
Thirdly: (0,18)
The 4th point: (0,21)
The 5th point: (0,24)
The 6th point: (0,27)
The 7th point: (0,30)
The 8th point: (3,12)
The 9th point: (3,15)
The 10th point: (3,18)
The ten one point: (3,21)
The ten two point: (3,24)
The ten three point: (3,27)
The ten four point: (6,12)
Fifteenth point: (6,15)
The ten six point: (6,18)
The ten seven point: (6,21)
The ten eight point: (6,24)
Origin is at the top of striking surface, and x is the distance from initial point (cm) on width, and y is the distance from initial point on axis direction.Calculate the mean value e3 of the mean value e1 of the coefficient of resilience of first to the 7th, the mean value e2 of the coefficient of resilience of the 8th to the 13 and the coefficient of resilience at the 14 to the 18.The results are shown in following table 1.
Table 1 assessment result
As shown in table 1, in the racket frame of each example, the coefficient of resilience away from the point of central point on width is higher.In other words, the happy district of the racket frame of each example is wider.From assessment result, advantage of the present invention is obvious.
As above describe just to case illustrated, can make various amendments according to principle of the present invention.
Claims (6)
1. a racket frame, described racket frame comprises the racket head being formed by fiber-reinforced resin, it is characterized in that, wherein,
Described racket head comprises the enhancement Layer for string of a musical instrument groove;
Described enhancement Layer is formed by prepreg, and described prepreg comprises fiber and matrix resin; And
The modulus of elasticity in comperssion of described prepreg is equal to or less than 100GPa.
2. racket frame as claimed in claim 1, is characterized in that, wherein, the tensile modulus of elasticity of described prepreg is equal to or less than 100GPa.
3. racket frame as claimed in claim 1 or 2, is characterized in that, wherein, the tensile modulus of elasticity of described fiber is equal to or less than 160GPa.
4. racket frame as claimed in claim 1 or 2, is characterized in that, wherein, the material of described fiber is amorphous carbon.
5. a racket frame, described racket frame comprises the racket head being formed by fiber-reinforced resin, it is characterized in that, wherein,
Described racket head comprises the enhancement Layer for string of a musical instrument groove;
Described enhancement Layer is formed by prepreg, and described prepreg comprises fiber and matrix resin; And
The tensile modulus of elasticity of described fiber is equal to or less than 160GPa.
6. a racket frame, described racket frame comprises the racket head being formed by fiber-reinforced resin, it is characterized in that, wherein,
Described racket head comprises the enhancement Layer for string of a musical instrument groove; And
Described enhancement Layer comprises amorphous carbon fiber and matrix resin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013016360A JP6053539B2 (en) | 2013-01-31 | 2013-01-31 | Racket frame |
| JP2013-016360 | 2013-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103961849A true CN103961849A (en) | 2014-08-06 |
| CN103961849B CN103961849B (en) | 2016-08-17 |
Family
ID=49998137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410037696.5A Active CN103961849B (en) | 2013-01-31 | 2014-01-26 | Racket frame |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2762205B1 (en) |
| JP (1) | JP6053539B2 (en) |
| CN (1) | CN103961849B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925686A (en) * | 2017-12-15 | 2019-06-25 | 住友橡胶工业株式会社 | Frame of racket |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512350A (en) * | 2017-01-11 | 2017-03-22 | 盐城工学院 | Tennis racket frame and tennis racket |
| TWI617429B (en) * | 2017-09-22 | 2018-03-11 | Topkey Corp | Shock-absorbing composite material structure |
| JP6906091B1 (en) * | 2020-07-20 | 2021-07-21 | 株式会社ゴーセン | Grommet for racket and racket equipped with this |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0290424A2 (en) * | 1987-05-05 | 1988-11-09 | Fischer Gesellschaft M.B.H. | Racket frame |
| CN2316982Y (en) * | 1998-03-02 | 1999-05-05 | 生力旺兴业股份有限公司 | Improved racket frame |
| JP3474792B2 (en) * | 1998-12-18 | 2003-12-08 | 美津濃株式会社 | Racket frame |
| US20050119075A1 (en) * | 2003-11-27 | 2005-06-02 | Sumitomo Rubber Industries, Ltd. | Racket frame |
| EP2550997A2 (en) * | 2011-07-25 | 2013-01-30 | Dunlop Sports Co., Ltd. | Racket frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436305A (en) * | 1981-08-26 | 1984-03-13 | American Sports Equipment | Composite reinforced racket structure |
| AT401877B (en) * | 1990-02-21 | 1996-12-27 | Scheruebl Franz | VIBRATED DAMPER TRAINING |
| JPH09108385A (en) * | 1995-10-19 | 1997-04-28 | Yamaha Corp | Racket frame |
| JPH1118631A (en) * | 1997-06-30 | 1999-01-26 | Daiwa Seiko Inc | Member for sporting goods |
| JPH11262546A (en) * | 1998-03-17 | 1999-09-28 | Mizuno Corp | Racket frame |
| JP4041031B2 (en) * | 2003-07-04 | 2008-01-30 | Ｓｒｉスポーツ株式会社 | Racket frame |
| JP4869388B2 (en) | 2009-07-10 | 2012-02-08 | Ｓｒｉスポーツ株式会社 | Racket frame |
| WO2011113312A1 (en) * | 2010-03-15 | 2011-09-22 | Liu Yong | Bat for tennis ball, squash ball or badmnton capable of damping vibration and incresaing elasticity |
-
2013
- 2013-01-31 JP JP2013016360A patent/JP6053539B2/en active Active
-
2014
- 2014-01-24 EP EP14152466.0A patent/EP2762205B1/en active Active
- 2014-01-26 CN CN201410037696.5A patent/CN103961849B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0290424A2 (en) * | 1987-05-05 | 1988-11-09 | Fischer Gesellschaft M.B.H. | Racket frame |
| CN2316982Y (en) * | 1998-03-02 | 1999-05-05 | 生力旺兴业股份有限公司 | Improved racket frame |
| JP3474792B2 (en) * | 1998-12-18 | 2003-12-08 | 美津濃株式会社 | Racket frame |
| US20050119075A1 (en) * | 2003-11-27 | 2005-06-02 | Sumitomo Rubber Industries, Ltd. | Racket frame |
| EP2550997A2 (en) * | 2011-07-25 | 2013-01-30 | Dunlop Sports Co., Ltd. | Racket frame |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925686A (en) * | 2017-12-15 | 2019-06-25 | 住友橡胶工业株式会社 | Frame of racket |
| CN109925686B (en) * | 2017-12-15 | 2021-12-07 | 住友橡胶工业株式会社 | Racket frame |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2762205B1 (en) | 2016-09-07 |
| EP2762205A1 (en) | 2014-08-06 |
| CN103961849B (en) | 2016-08-17 |
| JP2014147430A (en) | 2014-08-21 |
| JP6053539B2 (en) | 2016-12-27 |
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