CN2166845Y

CN2166845Y - Tennis racket

Info

Publication number: CN2166845Y
Application number: CN93224500U
Authority: CN
Inventors: 周建中
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-15
Filing date: 1993-09-15
Publication date: 1994-06-01
Anticipated expiration: 2003-09-15

Abstract

The utility model relates to an improved tennis racket. The annular frame part of the utility model is divided into eight sections, wherein the first section and the second section are positioned on both side ends of the major axis of the annular frame part, and the third section and the fourth section are positioned on both side ends of the minor axis of the annular frame part. The fifth section and the sixth section are respectively positioned between the first section and the third section, and the third section and the fourth section; the seventh section and the eighth section are respectively positioned between the second section and the third section, and the third section and the fourth section. The first to the fourth sections have a first cross sectional height in the direction which is perpendicular to a tennis hitting surface formed on the annular frame part, and the fifth to the eighth sections are provided with a second cross sectional height in the direction which is perpendicular to the tennis hitting surface formed on the annular frame part. The first cross sectional height is larger than the second cross sectional height.

Description

Tennis racket

The utility model is relevant with sporting racket, particularly about a kind of tennis racket that all can exploit one's power when back court batting or the front court halting.

The course of action of general tennis can be divided into two big classes, and a class is the back court batting, promptly belongs to this class course of action as outdrive, bottom line counterattack etc., and is another kind of then for the front court halting, belongs to this class course of action as cut, chop, interception etc.As everyone knows, in order spheroid to be driven with powerful bottom line or the mode of spiral is hit to the bottom line of opposite side by square bottom line, must consume sizable strength, so beginner or the less tennis fan of strength often can't hit gratifying back court batting.In order to address this problem, part racket manufacturer is arranged when making racket, the depth of section at the ring frame position of the wire side of especially racket being batted strengthens, thickness is then reduced, whereby, after netting twine is arranged in ring frame position, can produce bigger Oscillation Amplitude, in other words, when being spheroid striking netting twine, netting twine has bigger backwash strength, so, use this racket square stance, need only use less strength and can hit the powerful cross-court pass of power.On the contrary, when the front court halting is done in the online of striker's desire, though must not spend big strength, but owing to must grasp accurate spheroid drop point, therefore, the longer holdup time that spheroid is had on wire side is absolute key point, and the aforementioned racket of back court batting that is suitable for is because the framework height, backwash strength is big, and it is very short to make that spheroid touches time of wire side, so be difficult to hit accurate spheroid drop point when doing the front court halting.In other words, to hit preferable front court halting, the less racket particularly suitable of ring frame position depth of section reduces but work as the depth of section one that encircles the frame position, and the reduction that the backwash strength of netting twine is promptly corresponding so, then is unfavorable for doing back court again and bats.

Main purpose of the present utility model is promptly providing a kind of tennis racket of improvement, and no matter it all can bring into play expected effect in back court batting or front court halting.

For realizing aforementioned purpose, the tennis racket that the utility model proposes includes one and forms the ring frame portion of a striking surface in order to wear netting twine, and this ring frame portion has a major axis and a minor axis; One from footstalk portion that an end of ring frame minister axle extends outward; An and handle portion that is connected in footstalk portion open end; It is characterized in that this ring frame portion is distinguished into eight sections, wherein first, second section is positioned at two sides of major axis, in order to define a vertical belt-like zone, three, the 4th section is positioned at two sides of minor axis, in order to define a transverse banded region territory, five, the 6th section is respectively between first section and the 3rd, the 4th section, the 7th, the Section Eight section respectively between second section and the 3rd, the 4th section, the 5th, the fixed one first oblique belt-like zone of Section Eight segment limit; Six, the fixed one second oblique belt-like zone of SECTOR-SEVEN segment limit; The first, second, third and the 4th section all has one first depth of section on the direction vertical with striking surface, five, the 6th, the 7th and the vertical direction of Section Eight Duan Zaiyu striking surface on all have one second depth of section, and first depth of section is greater than second depth of section.

By aforesaid frame structure, can find only to be used for to hit the back court batting vertically and the pairing framework of horizontal second belt-like zone have bigger depth of section, be used for hitting the pairing framework of two oblique belt-like zones that returns the front court and then have less depth of section, thus, the person of holding the bat need only use less strength can hit the powerful back court batting of power, and owing to the framework depth of section that is not whole racket all strengthens, therefore except spheroid this two oblique belt-like zone has the long holdup time, the person of holding the bat also can conversion grip of holding bat quite agilely and direction do the front court and return.

Below, lift a preferred embodiment and conjunction with figs. now the utility model is described further, wherein:

Fig. 1 is the front view of the utility model one preferred embodiment, and wherein indicating has vertically and the transverse banded region territory;

Fig. 2 is the front view of the utility model one preferred embodiment, and wherein indicating has two oblique belt-like zones;

Fig. 3 is the side view of the utility model one preferred embodiment;

Fig. 4 is the utility model one preferred embodiment cutaway view on the 4-4 direction in Fig. 1;

Fig. 5 is the utility model one preferred embodiment cutaway view on the 5-5 direction in Fig. 2.

See also each accompanying drawing, tennis racket 10 of the present utility model can be made by metal, carbon fiber, glass fibre, hard plastic or other light materials, it includes a ring frame portion 12, this ring frame portion 12 has a major axis X-X ', and a minor axis Y-Y ', and after wearing netting twine, form a batting cage face 20; One footstalk 14 is connected with an end of ring frame portion 12 with two branches 141,142, and a handle portion 16 is connected in the open end of footstalk 14, is coated with a handle skin 18 that supplies the person of holding the bat to be easy to grip on it.

Ring frame portion 12 is distinguished into eight sections, be positioned at first and second

identical section

1,2 of major axis X-X ' two side ends and arc length, be positioned at the 3rd and the 4th section

identical district

3,4 of minor axis Y-Y ' two side ends and arc length, be positioned at the 5th, the 6th section of 3,4 of first section 1 and the 3rd, the 4th sections, and be positioned at 3,4 of second section 2 and the 3rd, the 4th sections the 7th, the Section Eight section, wherein the 5th section has identical arc length with the Section Eight section, and the 6th section has identical arc length with the SECTOR-SEVEN section.

The first, second, third and the

4th section

1,2,3,4 all has one first depth of section h1 on the direction vertical with striking surface 20, five, the 6th, the 7th and Section Eight

section

5,6,7,8 on the direction vertical, then all have one second depth of section h2 with striking surface, wherein the value of h1 is greater than h2, in the present embodiment, the value of h1 is 30mm, and the value of h2 is 20mm, certainly, h1, h2 also can be other values, for example make h1 between 18mm～40mm, and h2 are between 17mm～30mm.

By aforesaid explanation as can be known, striking surface 20 be used for doing the back court batting vertically and transverse banded region territory L and H define by first,

second section

1,2 and 3,4 of the 3rd, the 4th sections, and the framework depth of section h1 of aforementioned each section is owing to be big than other positions, therefore the netting twine that passes this two area L and H has bigger backwash strength, whereby, the person of holding the bat can hit the back court batting with Expected Results easily.On the other hand, first and second oblique belt-like zone S1, S2 that striking surface 20 is used for doing the front court halting be by the 5th, Section Eight

section

5,8, and the 6th, 6,7 of SECTOR-SEVEN sections define, and the framework depth of section h2 of aforementioned each section is because height h1 is little, therefore, the person of holding the bat is when doing the front court halting, spheroid can roll and hits along the less arbitrary oblique belt-like zone S1 of backwash strength or S2, so, spheroid will have the long holdup time on wire side, and can drop on accurately on the place of expection.Moreover tennis racket of the present utility model 10 is owing to be not that framework depth of section with whole racket all strengthens.Therefore the person of holding the bat can conversion grip of holding bat quite agilely and direction.In other words, this tennis racket 10 also is applicable to and does the front court halting except being applicable to the back court batting.

Claims

1, a kind of tennis racket, it includes in order to wear netting twine and forms the ring frame portion of a striking surface, and this ring frame portion has a major axis and a minor axis, and one from footstalk portion that an end of this ring frame minister axle extends outward, and a handle portion that is connected in footstalk portion open end, it is characterized in that:

Ring frame portion has and lays respectively at first of its major axis two ends, second section, lay respectively at the 3rd of its minor axis two ends, the 4th section, be used for connecting first section and the 3rd, the 5th of the 4th section, the 6th section, and be used for connecting second section and the 3rd, the 7th of the 4th section, the Section Eight section, first, second section defines a vertical belt-like zone, the 3rd, the 4th section defines a transverse banded region territory, the 5th, the fixed one first oblique belt-like zone of Section Eight segment limit, the 6th, the fixed one second oblique belt-like zone of SECTOR-SEVEN segment limit, first, second, the the 3rd and the 4th section all has one first depth of section on the direction vertical with striking surface, the 5th, the 6th, the 7th and the vertical direction of Section Eight Duan Zaiyu striking surface on all have one second depth of section, and first depth of section is greater than second depth of section.

2, according to the described tennis racket of claim 1, the difference in height that it is characterized in that first depth of section and second depth of section is between 1mm-10mm.

3,, it is characterized in that first depth of section is between 18mm-40mm according to the described tennis racket of claim 2.

4,, it is characterized in that second depth of section is between 17mm-30mm according to the described tennis racket of claim 2.

5,, it is characterized in that first and second section has identical arc length according to the described tennis racket of claim 1.

6,, it is characterized in that the 3rd and the 4th section has identical arc length according to the described tennis racket of claim 1.

7, according to the described tennis racket of claim 1, it is characterized in that the 5th and the Section Eight section have identical arc length.

8, according to the described tennis racket of claim 1, it is characterized in that the 6th and the SECTOR-SEVEN section have identical arc length.