CN102223926A - Sports racket for playing in narrow indoor spaces - Google Patents

Abstract

The present invention relates to a sports racket for playing in narrow indoor spaces. The racket has a total length of 430 to 470mm, a total width of 150 to 185mm, a string unit length of 220 to 225mm, a shaft diameter of 5 to 7mm and a cross section thickness of 0.5 to 1.5mm. The racket of the present invention reduces the flight length and height of the shuttlecock, thereby enabling play within a narrow space. Being lightweight, it is easy for the weak, the elderly and children to use and prevents user joint-strain. Using the racket of the present invention involves more physical exercise, as it demands increased footwork on the part of the user, and increases the activity of the user due to the shuttlecock being passed back and forth more frequently as a result of the shortened flight length.; Although the racket of the present invention has a comparatively reduced size, the elastic force of the racket shaft is not reduced, and user joint-strain is therefore prevented by absorption of the force of impact when striking the shuttlecock. Users can execute accurate motions by applying elastic force to the shuttlecock to achieve a satisfactory flight distance. The racket of the present invention is therefore suitable for encouraging national sports participation.

Description

The racket that is used for the narrow interior space

Technical field

The present invention relates to a kind of racket that can play in the narrow interior space.

Background technology

Use the sports of racket that tennis, shuttlecock, squash, quick shuttlecock etc. are arranged, use the sports of described racket, have the racket size and the weight of different size respectively according to each sports kind, and ball etc.

Wherein, shuttlecock be a kind of in central authorities across net post, the match of beating net post with racket batting, irrelevant with right to serve, as in this match, to win side's score, the obtain 21 fens earlier side triumph of (elementary 17 minutes), when score 20: 20 identical (elementary 16: 16), a side who obtains continuously 2 fens wins, when score 29: 29 identical (elementary 24: 24), the arrive 30 fens earlier side triumph of (elementary 25 minutes).

Need articles for use such as racket, ball, net post in order to carry out badminton game, and require to have the space of predetermined altitude and width according to the flight curve of ball.

Racket in the described articles for use is described, as shown in Figure 1, constitute by handle 2, row string (string) portion 4, the racket head 6, dabber 9, the row's neck 9 that are provided with described row's string portion 4, comprise that scope is 680mm at handle 2 total lengths of 200-250mm, beam overall can not surpass 230mm, the length overall of row string portion 4 be 280mm, width in 220mm, but not restriction of its weight, shape and material.And, have pure timber dabber that make, that have by iron and steel make, have whole by the iron and steel making etc.In recent years, use carbon or fibrous racket more.In row's string of racket, the elastic force of sheep is best, and durability is strong, and special player nearly all is with this kind racket.But, when exercise, can use polyamide or true silk products.

To put on the impulsive force of arranging string in order lowering in the moment with the racket batting by dabber, and ball to be applied elastic force, dabber forms long and the center is the tubular of hollow, and as shown in Figure 2, its diameter is 7-8.5mm usually, and section thickness is 1.5-2.5mm.

Shown in Fig. 3 and 4, shuttlecock is feather 20 to be fixed in the ball holder 10 that is made of hemispherical cork form, its weight is 4.5-5.5g, the diameter of cork is 2.5-2.8cm, the quantity of feather is 16, the feather end should be 6.4-7.0cm to the length of ball holder upper surface, the diameter of feather end is 58-68mm, the outer peripheral face of the upper surface of ball holder 10 and feather 20 has the angle about 65 °-75 °, maximum speed is 320km/h, and the racer should drop between the 53-99cm of service line inboard after place one end is with underhand stroke.

And, the relatively light and feather of shuttlecock expands out at a predetermined angle and the influence of wind-engaging is very big, therefore, and when outdoor playing, shuttlecock takes place also can't interruption or the boring problem of match change often take place thus to the problem of required direction and distance flight under gentle breeze.For this reason, regulation game is carried out in blocking the indoor of exogenous wind, and at this moment, heights of ceilings should have at least more than the 9m, the court live width, and during singles, its width is 5.18m, and during doubles, its width is 6.1m, and the length between the both sides service end line is 13.4m; The net post of central portion 1.524m, column sections 1.55m is set at the center, place; Surpassing apart from the service line of 6.70 meters on net during singles is out-of-bounds, and surpassing apart from the service line of 5.94 meters on net during doubles is out-of-bounds.

But, in order to carry out described existing badminton game, require the heights of ceilings of the interior space minimum for more than the 9m, the space of the above height of this 9m exists except indoor competition field hardly, so common people can't play under the resistance of wind-engaging not.And badminton game at most can only 4 be taken part in game, so sportsman's number is very few with respect to the space.

As mentioned above, very few also the court specification to be decided to be wide and long be according to the structure of racket and ball to sportsman's number with respect to the space.That is, should be suitable for existing racket and ball and guarantee flying distance and flying height with the flight path of correct method and correct angle square stance.

In addition, because 16 feathers of existing ball have about 70 ° angle of standing up (angle between ball holder and the feather), therefore consider in order to have sufficient flying distance, should keep correct footwork and action by aloft air drag at square stance, for example, about about 60 ° of angle of shot during slam-shot, the angle of high clear is about 80 °, chops the chop about about 70 °, under this slance, manually work and footwork correctly just can not bring burden correctly to bat to health.

But, existing racket is long because of its length, so amateur player's common people can't correctly hit ball the string row, as described owing to can't correctly bat, therefore only concentrate on ball is hit at racket, and the posture of the manual work that causes to keep correct and footwork etc., there is after the motion problem that can bring burden to joint etc., this pain symptom that occurs in the joint is called tennis arm (medical terms are called (going up carpal bone on inflammation)), and it is to break because of the partial tendon that encases the bone from the ancon to the palm to take place.

Tendon in the described tennis arm breaks and is when ball or shuttlecock hit at racket and the vibration that produces brings arm and stimulates and produce, and when using overweight racket or holding rod size not to be inconsistent, or arranges that the intensity of string (threading is in the ball frame in length and breadth) is inappropriate also can be taken place.As mentioned above, only concentrate on racket and hit ball or shuttlecock and do not consider that footwork only also plays effect with major reason with the batting mode of the mistake of arm.

And ball more heavily hits in the vibration meeting that moment produced of racket greatly more when ball, therefore, in order to alleviate the burden in joint etc. is used lighter ball as far as possible.

Because described shuttlecock is subjected to wind resistance big, in order to improve this universal quick shuttlecock in conjunction with shuttlecock and tennis, with the ball holder of shuttlecock is not to be formed and used elastomeric material and utilize speed because of its weight by cork, with shuttlecock mutually specific rate be improved, the resistance of institute's wind-engaging also tails off.

But, because than shuttlecock Heavy Weight, therefore the speed of described quick shuttlecock is brought burden to the joint, and its speed is not suitable for the elderly or children soon, the court specification also strengthens 12.8m with the square of 5.5m, therefore need the space of total 23.8m, existence can't be in the indoor problem that plays.

Tennis also is that the Heavy Weight and the speed of ball is fast, needs spacious court, therefore is not adapted at indoor object for appreciation ball.

So, disclose for Republic of Korea publication 10-2004-0025507 number a kind of can be in indoor competition, make the elderly or children convenient use, the technology that the size of racket is shortened than existing racket, but this is the material that in the same old way uses existing racket, only the size with racket shortens, and does not put down in writing the dimension modifying to material such as width, diameter in the detailed description of specification.

Use the racket of existing racket material in the same old way, its diameter is identical, have only length to shorten and elastic force reduces, when therefore taking place to impact with shuttlecock, this impact is directly delivered to the user by handle, and the square stance dabber does not have elastic force, and the flying distance of shuttlecock is only by user's the slam-shot speed and the tension force decision of strength of batting and row's string, can't expect the tension force of dabber, therefore have the problem of promptly using power its flying distance identical to shorten significantly with existing racket.

Cause burden is brought in the joint owing to not absorbing to impact as described, and at square stance the user need firmly not do slam-shot action owing to there is tension force, therefore there is easy problem tired out when playing, because dabber does not have elastic force, therefore the phenomenon of going when hitting at racket, shuttlecock takes place to be ejected, thereby can't correctly carry out amusement in narrow space, especially hair clip curved (hairpin), flatly take out (drive), spike, receive (return) etc., and have the problem that can't firmly spike.

Summary of the invention

The objective of the invention is to, improve racket structure, be reduced on the existing material that uses the so-called touch of the problem that is taken place on the racket of minification only, be difficult to critically to embody technology and be buffered in the impact that joint etc. takes place in order to use in narrow space.

For reaching described purpose, the invention provides the racket that is used for the narrow interior space, the length overall of described racket is that 430-470mm, beam overall are that 150-185mm, row's string minister degree are that 220-225mm, dabber diameter are that 5-7mm, dabber section thickness are 0.5-1.5mm.

The weight of described racket is 50g-70g.

Handle forms the shortest as far as possible, and length is the scope of 90-160mm.

Therefore according to the present invention constituted as described, the gross weight of racket compared with the past lightens, and can not bring burden to the user at square stance, so children or the elderly can bat easily.

Compare with existing racket, its diameter and entire length reduce significantly, dabber diameter and section thickness also diminish simultaneously, therefore, dabber has the elastic force identical with having racket now, even, reduce the disease that vibration that tennis arm etc. produces because of strike causes thus so use little racket also can absorb the vibration that square stance takes place by dabber.

At square stance ball is applied elastic force and can apply power to ball, therefore compare its flying distance with the racket that has only length to shorten and improve, slam-shot is waited does not need excessive action thus, can correctly bat, and improves match enjoyment.

And, when the length overall of racket shortens, compare easier batting with the racket that length is in the past grown, therefore have the effect that can bring out the interest of match.

Simultaneously, because racket shortens, therefore required the above ceiling step-down of 9m is about 3m-4m in the past, indoor can playing with ball and racket Anywhere.

The easily batting because racket shortens only can also not notice that with the racket batting correct arm action or foot-propelled do, and therefore can prevent to do joint etc. is brought because of the arm action of mistake and foot-propelled the problem of burden, so movement effects is improved.

The impulsive force that square stance was applied when the length of racket shortened also diminishes, therefore compare the spoilage that reduces ball significantly with existing racket, impaired club goes out of use, but, the discarded rate that can reduce ball significantly according to racket of the present invention has the effect of the resource of reducing, simultaneously, also has the effect that can lower the needed expense of purchase ball significantly.

Description of drawings

Fig. 1 is the drawing of the existing racket of expression.

Fig. 2 is the sectional view of existing dabber.

Fig. 3 is the perspective view of existing ball.

Fig. 4 is the side cross-sectional view of existing ball.

Fig. 5 is the drawing of expression according to racket of the present invention.

Fig. 6 is the sectional view according to dabber of the present invention.

Fig. 7 is the drawing of the structure of expression ball.

Fig. 8 is the drawing of expression net post specification.

Fig. 9 is the drawing of expression court specification.

Figure 10 is a drawing of representing sphere path curve when using existing racket articles for use and racket articles for use of the present invention.

Among the figure:

110: row's string portion, 120: handle, 210: ball holder, 220: feather

The specific embodiment

Below, describe embodiments of the invention more in detail with reference to accompanying drawing.

Fig. 5 is the drawing of expression according to racket of the present invention, Fig. 6 is the sectional view according to dabber of the present invention, Fig. 7 is the drawing that is illustrated in the structure that is fit to the ball that uses together when using racket of the present invention, Fig. 8 is the drawing of expression net post specification, Fig. 9 is the drawing of expression court specification, and Figure 10 is a drawing of representing sphere path curve when using existing racket articles for use and racket articles for use of the present invention.

According to shuttlecock articles for use of the present invention, roughly constitute by racket, ball and net post.

Described racket, as shown in Figure 5, general racket does not have the weight regulation, but, the present invention is defined as its weight the scope of 50g-70g at a distance for ball can't be flown, length overall is that 430-470mm, beam overall are that 150-185mm, the length of arranging string portion 110 are 220-225mm, and the size of handle 120 and dabber 130 and row's neck 140 is being adjusted in total 230mm-155mm scope.

And as shown in Figure 6, the diameter of dabber 130 is that 5-7mm, section thickness are 0.5-1.5mm.

The length of handle 120 is 90-160mm, feels the size of handle to be made as minimum in comfortable when catching handle.

And the spacing of row's string is be on one side the quadrangle of 0.6-1.2cm, and this is in order to make its size corresponding to the ball described later that reduces, so between the square stance ball can not the row's of being clipped in string.

The structure of the ball of the best that can play in the narrow interior space with described racket is, as shown in Figure 7, the diameter of the ball holder 210 that is formed by vegetable cork is 17-22mm, at the upper surface of described ball holder 210 with the fixing 10-14 root feather 220 of predetermined space, vertical length from the upper surface of described ball holder 210 to feather 220 ends is 65-73mm, the angle of standing up between the upper surface of ball holder 210 and the feather 220 is 60 °-70 °, and gross weight is 2.1-2.6g.

In addition, the ball of Gou Chenging as mentioned above when low hand full stroke (underhand stroke), should land in between the batter's box 5-7.1m.

As shown in Figure 8, net post is centre-height 1.45m, pillar height 1.47m, width 4.3m, and mesh is to be the quadrangle of 1-1.8cm on one side.

And, as shown in Figure 9, the court is length 8.6m, width 4.3m, is 1.33m with the net post for the center short service line, surpassing apart from the service line of net post 3.88m during doubles is out-of-bounds, surpassing apart from the service line of net post 4.3m during singles is out-of-bounds, and the sideline the when width in court is used for doubles, the sideline during singles are the positions of inwardly distinguishing 0.42m from the court width.

According to the racket that constitutes as mentioned above, not only the length of racket shortens, and the hit position of racket and ball shortens apart from health, therefore bat easily with racket, and because of batter's box is low, so the flying height step-down of ball.

Simultaneously, the ball that is suitable for racket of the present invention, the size of ball holder is reduced significantly, the quantity of its feather also is reduced, and therefore whole size diminishes, and its weight is also compared with the past to be lowered significantly, simultaneously, the angle of standing up of feather dwindled than in the past, so that suffered in-flight air drag becomes is big, and flying distance step-down compared with the past and shortening.

According to Figure 10 described operating range and height are described, flight path when using existing racket and shuttlecock when the dotted line of Figure 10 is illustrated in deep high service, the flight path of the ball when solid line is represented to use racket of the present invention and ball deep high service, flight path of the present invention compared with the past as can be known is not only low but also short.

Thus, when racket of the present invention was used suitable ball, the flying height step-down of ball and its flying distance shortened, and therefore can move indoor, can play in the indoor of height 3-4m usually.

Claims (3)

1. racket that is used for the narrow interior space, described racket comprise row's string portion, handle, dabber, it is characterized in that:

The length overall of described racket is that 430-470mm, beam overall are that 150-185mm, row's string minister degree are that 220-225mm, dabber diameter are that 5-7mm, dabber section thickness are 0.5-1.5mm.

2. the racket that is used for the narrow interior space according to claim 1 is characterized in that:

The weight of described racket is the scope of 50g-70g.

3. the racket that is used for the narrow interior space according to claim 1 is characterized in that:

The length of handle is 90-160mm.

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