CN2329394Y - Improved structure for racket - Google Patents

Abstract

The utility model discloses an improved structure of a racket, which comprises a head frame work on which the netting twines can be shuttled so as to be tensioned into a net surface, and a handle integrally extending from the long shaft side of the head frame work, wherein the circle diameter of a thread hole at the inner frame side of the head frame work is larger than that of the thread hole of the outer frame side, and a large distance is kept between the outer diameter of a long nail axially arranged on the centre of the head frame work and the thread hole at the inner frame side of the head work. The long nail is made of shock-absorbing elastic materials, and a centre shaft hole of the long nail is bunted and engaged tightly with the outer diameter of the netting twines; a large sweet area range and the reduced vibration of the racket surface can be achieved when the racket beats a ball.

Description

The improvement structure of racket

The utility model relates to a kind of improvement structure of racket.

Relevant racket structure in advance, as Fig. 1, shown in 2, it comprises a head frame 1 and one handle 2, wherein head frame 1 comprises an inner side frame face 1A and an outer side frame face 1B, the relative position of inner side frame face 1A and outer side frame face 1B and run through and be arranged with plural line hole 3, the plastic cement that axially then is equipped with in line hole 3 penetrates one-body molded bar nail sheath 4, the nail spool 4A of this nail sheath 4 pushes against two end 3A in this line hole 3 with its external diameter, 3B, as shown in Figure 2, and by its central shaft to run through be arranged with one greater than netting twine 5 external diameters among arbor hole 4B the protection of shuttling back and forth of netting twine 5 is provided, thus netting twine 5 interweave open establish obtain one can be for the face 6 of strike; Because the bar nail sheath 4 that plastic cement is made has big rigidity, under supporting, the tightening of the online hole 3 two end 3A of its nail axle 4A, 3B make to be arranged in the interior netting twine of central shaft hole 4B 5 and can't to be out of shape; Therefore, when netting twine 5 is subjected to the racket bump, as shown in Figure 2, its with the slightly outstanding nail 4A of line hole 3A port that is exposed to of head frame 1 inner side frame face 1A as the stressed fulcrum of two sides, so this netting twine 5 is to set up fixing line hole 3A with two ends about this to be out of shape towards striking point on the ball composition arc elasticity as starting point basically, the sweet district of strike then is limited in less sweet zone range 7 in the circumference of face 6 major and minor axis intersection centers.

The main purpose of the utility model ties up to the improvement structure that a kind of racket is provided, and it can significantly promote and hit sweet zone range and reduce the face concussion.

For reaching above-mentioned purpose, the utility model comprises one and can shuttle back and forth to open for netting twine and be set as one and hit the head frame of face, and is extended the handle of one by this head frame side; Head frame has be separated by one of two a sides inner side frame face and an outer side frame face, inside and outside side frame face runs through and is concaved with plural line hole, the line hole of outer side frame face wears the location with a nail, arbor hole among axially having of this nail one runs through, passes for netting twine, it is characterized in that: the line hole circle footpath of head frame inner side frame face is greater than the line hole of outer side frame face, and the line hole internal diameter of bar placed in the middle nail external diameter and this inner side frame face keeps one than distance between unsettled greatly; Bar nail is made with a shock-absorbing elastomeric material, its central shaft hole with wear that the footpath interlock pushes against outside the netting twine.

After adopting said structure, the utility model is reached shaking than big sweet zone scope and minimizing face of racket strike.

Below in conjunction with drawings and Examples the utility model is further described.

The stereogram of racket structure is commonly used by Fig. 1 system;

Fig. 2 is the A-A cutaway view of Fig. 1;

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

Fig. 4 is the B-B cutaway view of the utility model Fig. 3;

Fig. 5 is the floor map of the utility model one preferred embodiment.

At first, see also shown in Fig. 3,4, the utility model comprises one can clap the head frame 10 that sets up for net, and one can be for the handle 20 of staff gripping.

Wherein, head frame 10 is an oval ring framework, and it comprises one of two sides inner side frame face 11 and one outer side frame face 12 of being separated by, inner side frame face 11 and 12 in outer side frame face and run through and be concaved with plural line hole 13A, 13B; Wherein the line hole 13A of inner side frame face 11 positions circle footpath is greater than the line hole 13B of outer side frame face 12; The line hole 13B of outer side frame face 12 also 14 wears relatively with a nail, and bar nail 14 is made by the shock-absorbing elastomeric material; Its nail axle 141 external diameters are the line hole 13B that tight axle closes side frame face 12 outside this, its terminal shaft to then be suspended in the middle of the line hole 13A of inner side frame face 11 and and its aperture side between keep one big between apart from S, carry out the distortion activity as the cantilever beam under the nail axle 141 online hole 13B fixings that must make this nail 14 like this, this nail axle 141 axially and run through and be arranged with a central shaft hole 142, for wearing of a netting twine 15, this central shaft hole 142 coats the interlock one fully with netting twine 15 external diameters, as shown in Figure 4, so can be under racket is batted stressed P effect along with netting twine 15 deformation direction predetermined angular beats, it firmly tightens stressed for the bar nail 14 that makes soft vibration absorptive material, be to follow closely the sheath 16 that 14 outsides, one hard plastics of coating is in advance made at bar, arbor hole 142 positions were to be concaved with perforation 161 respectively among bar followed closely 14 relatively on this sheath 16, allowing netting twine 15 be woven into one so that tighten fixing by connecting of this netting twine 15 simultaneously can be for buying the face 17 of pulling, as shown in Figure 3.

Handle 20 is one-body molded by the one example extension of head frame major axis, and its terminal shaft can be for the shank 21 of the convenient gripping of hand to then setting firmly one.

By above-mentioned member combination, and the improvement that gets a kind of racket is constructed, as Fig. 3, shown in 4, the tension of shuttling back and forth of its soft nail 14 nail axle 141 cooperation netting twines 15, arbor hole 142 integrally combines the two because of netting twine 15 external diameters fill fully among the nail axle 141, its nail axle 141 front ends and outside head frame 10 the line hole 13B interlock of side frame face 12 fastening, and keep the rear end built on stilts between two parties at the line hole of inner side frame face 11 13A, as shown in Figure 4, so, netting twine 15 is to force about line end two sides to produce outside horizontal component and netting twine 15 is slowed down than Daqu arc flexural deformation degree originally and outwards even up under the stressed P bump of same batting; In other words, distortion that this stressed netting twine 15 produced is supported and is stressedly goed deep into inner side frame face 11 and supported by the hole 13B that reaches the standard grade of side frame face 12 outside two sides, be to obtain a sweet zone range 18 of big wide than the line hole 13A space free distortion displacement in great circle footpath according to inner side frame face 11, as shown in Figure 5 with netting twine 15; In the process of bouncing, because the nail axle 141 of soft bar nail 14 is arranged around netting twine 15 sets up with head frame 10, closely coating netting twine 15 external diameters of its central shaft hole 142, therefore, whole face 17 circumference form a complete and good shock-absorbing networking during strike, and can subdue the uncomfortable situation of concussion originally effectively.

Claims (1)

1, a kind of improvement of racket structure comprises one and can shuttle back and forth to open for netting twine and be set as one and hit the head frame of face, and extended the handle of one by this head frame side; Head frame has be separated by one of two a sides inner side frame face and an outer side frame face, inside and outside side frame face runs through and is concaved with plural line hole, the line hole of outer side frame face wears the location with a nail, axially having of this nail one run through, wear arbor hole among the footpath for netting twine, it is characterized in that: the line hole circle footpath of head frame inner side frame face is greater than the line hole of outer side frame face, and the line hole internal diameter of bar placed in the middle nail external diameter and inner side frame face keeps one than distance between unsettled greatly; Bar nail central shaft hole with wear that the footpath interlock pushes against outside the netting twine.

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