CN1243585C

CN1243585C - Racket

Info

Publication number: CN1243585C
Application number: CNB011224096A
Authority: CN
Inventors: 乌多·明斯特
Original assignee: FOERCER TENNIS AG
Current assignee: FOERCER TENNIS AG
Priority date: 2000-07-27
Filing date: 2001-07-05
Publication date: 2006-03-01
Anticipated expiration: 2021-07-05
Also published as: CN1335190A

Abstract

This invention refers to a novel ballgame racket, especially a tennis racket, including a racket head formed by a tension frame with stringing, and also having a grip portion joining the tension frame, for example by means of a crossing and formed by a gripping shaft or a racket neck and a handle.

Description

Racket

Technical field

The present invention relates to a kind of racket, particularly have the tennis racket of handle, tension force frame chord gauze lattice.This racket has a heart portion and handle is connected to Handle axis on the tension force frame.The tension force frame has a profile and is used for the string of a musical instrument of clamping tensioning and the tension force that damping mechanism is used for causing the string of a musical instrument.

Background technology

Known have a kind of racket (US5,458,331) have the tension force frame forming by two parts and constitute racket head, its inside casing profile and string of a musical instrument grid adjacency, the housing profile is also relevant with string of a musical instrument grid, is provided with many eyelet member and is used for tightening up the string of a musical instrument that forms string of a musical instrument grid on frame.Two profiles are overlapping like this so that form two inner chambers with variable volume, these two inner chambers are to form between two profiles of tension force frame, be distributed in the both sides of string of a musical instrument grid plan, its outside side is closed, and therefore can send into the fluid such as the CO of band pressure with a valve ₂Gas pressurization, the purpose of doing like this be to obtain the best can getable tension force.

The objective of the invention is to provide a kind of racket, particularly has the tennis racket of improved exercise performance.

Summary of the invention

In order to reach this purpose, the invention provides a kind of racket, have a racket head of forming by tension force frame chord gauze lattice, this string of a musical instrument grid forms a string of a musical instrument grid plan; Also has a handle component, this handle component is formed by Handle axis and careful portion is connected to the tension force frame, described tension force frame comprises following two various parts in the part of racket head at least: in abutting connection with the tension force frame profile of string of a musical instrument grid, this profile is the hollow profile of sealing along the whole periphery of its cross section; With the supporting frame profile that is positioned at the string of a musical instrument grid outside, the string of a musical instrument that forms string of a musical instrument grid is clamped on this profile, described supporting frame profile is made and is constituted as a kind of leaf spring of the tensioning string of a musical instrument by fibre reinforced plastics, this leaf spring has two wing profile parts, overhanging round about from the profile center line, described center line is positioned at above-mentioned string of a musical instrument grid plan, wherein the free and bearing of each wing profile is on the periphery of the sealing of mentioned strain frame profile, and described supporting frame profile provides a plurality of eyelets along its center line, is used to install the string of a musical instrument of string of a musical instrument grid.

Description of drawings

The present invention will illustrate in more detail according to the example embodiment in the following accompanying drawing.

Fig. 1 is for being the top view of summary of the racket of tennis racket according to form of the present invention;

Fig. 2 and 3 is the cross section corresponding to 1-1 line among Fig. 1, and Fig. 2 is before string of a musical instrument tensioning, and Fig. 3 is after tensioning;

Figure 4 and 5 are for similarly scheming with Fig. 2 and 3 in another embodiment of the present invention;

Fig. 6 and 7 is by the racket head of racket or the cross section of tension force frame in another embodiment of the present invention;

Fig. 8 and 9 is in other embodiments of the invention by the racket head of racket or the cross section of tension force frame.

The specific embodiment

Tennis racket 1 among Fig. 1 is made of following: a tension force frame 2 that forms racket head, there is string of a musical instrument grid 3 disposed thereon, string of a musical instrument grid 3 is made by many strings of a musical instrument that cross one another, throat or racket spools are connected to tension force frame 2 or its tension force frame profile 2 ' or the 2a ' (Fig. 2-5) of heart portion more than 5, and racket handle 7 is being set on this axle.Tension force frame profile 2 ' or 2a ', heart portion 5 be by two arms 5 ' stretch out and separately form from Handle axis 6.Handle axis 6 and heart portion are linked to be the racket frame of a single-piece, be made to a hollow body or hollow frame in the embodiment shown, this framework is made to outer closure and by a kind of suitable material such as fibre reinforced plastics, has one along the hollow profile of its whole length to outer closure.

Shown in Fig. 2 and 3, the tension force frame 2 in string of a musical instrument grid 3 outsides or tension force frame profile 2 ' on be provided with an external force buffering support profile 8 along 5 liang of arms 5 of heart portion ' between the whole long limit of tension force frame 2 surround tension force frame 2 or tension force frame profile 2 '.In the embodiment shown, support profile 8 is symmetrical in string of a musical instrument grid plan BE and is a lid shape profile cross section 9 to 3 unlatchings of string of a musical instrument grid, the outer surface of an indent is arranged on it leaves the outside of string of a musical instrument grid, in the zone of the string of a musical instrument grid plan BE of the cutaway view of Fig. 2 and 3, and the depression 10 that forms a groove shape surrounds racket head or tension force frame 2 in the outside.Both sides in depression 10, profile cross section 9 has arching upward of evagination basically on the outer surface, therefore form two parts in the both sides of string of a musical instrument grid plan BE, these two parts respectively have an indent in its inboard towards string of a musical instrument grid depression 11 is parallel to depression 10 and extends along the whole length of support profile 8.In addition, support profile profile cross section 9 frame oriented profiles 2 ' a side on be shaped on the sleeve or the eyelet member 12 of projection.Eyelet member 12 be inserted into by framework profile 2 ' on the

hole

13 and 14 that gets out, the boring 13 and 14 same axis that have on string of a musical instrument grid plan BE.Eyelet member 12 itself has boring 15, by this boring 15, the string of a musical instrument 3 ' be guided in the mode that on tennis racket, connects up usually, the relevant string of a musical instrument 4 stretches out by the boring of eyelet member 12 by given direction, then in depression 10 along the outer side shifting of tension force frame, hole 15 and so on by another eyelet member 12 or its downwards again.Adopt eyelet member 12, support profile 8 can be in certain limit on the axis direction of eyelet member 12 to framework profile 2 ' adjusting.Therefore tension force frame 2 is to be made by two parts on its at least a portion length.Support profile 8 is made along all peripheral single-piece of extending of framework 2 by one.

For another example shown in Fig. 2 and 3, profile 2 ' in its outside, in the both sides of string of a musical instrument grid plan BE and to be shaped on a groove depression 16 corresponding with depression 11 in the place of leaving its distance towards profile cross section 9.In depression 16 or cave in 11, framework profile 2 ' outer surface and the inner surface in support profile 8 or profile cross section 9 between the whole length extension of a flexible member 17 along support profile arranged.When support profile 8 is in not tensioning state, 2 ' one distances of profile (Fig. 2) are left in two outsides in profile cross section 9, and after tennis racket 1 wiring, specifically promptly after the string of a musical instrument 4 wirings, flexible member 17 is pressurized, framework profile 2 ' outer surface and the inner surface of support profile 8 between produce the effect of a flexible or damping, make support profile 8 edge 9 ' regional inner close fitting profile 2 ' outer surface on, therefore framework profile 2 ' outer surface and support profile 8 between the space that forms be closed, thereby just as the pointed tension force that applies by the string of a musical instrument grid 3 or the string of a musical instrument 4 of arrow K among Fig. 3 can by support profile 8 and elastic deformation component 17 transfer to profile 2 ' on.The effect that element 17 not only plays tension element can be used to keep the tension force of the string of a musical instrument, but also can be particularly as damping element, it can provide flexible damping to momentum when pellet impact is played ball to string of a musical instrument grid or with tennis racket 1, also can prevent the vibrations, vibration of the interference on the games racket frame etc. simultaneously.

Flexible member 17 can be made by elastic rubber material such as plastics, can have circular cross section and corresponding length.Preferably not only want flexible performance when selecting the material of flexible member 17, and will have damping capacity can consume the performance of kinetic energy.

Element 17 can also be a sebific duct, for example can fill within it with fluid, gas or admixture of gas, air or inert gas (as nitrogen or CO ₂) closely sealing then.These sebific ducts can confined state (Fig. 2) promptly before the string of a musical instrument 4 tensionings with certain exert pressure, or keep not pressurized.

When element 17 is filled with liquid medium, when for example containing the medium of oil and/or water, can obtain special effect.Hit on string of a musical instrument grid and when being applied to the tension force of maximum on the string of a musical instrument when ball in this case, can provide one at short notice inwardly towards the power of string of a musical instrument grid in this position upper support profile 8; And on string of a musical instrument grid 3, be not subjected to or few affected zone, because the liquid medium of displacement, support profile 8 is pressurized by element 17, has the outward force of increase, therefore can increase the tension force of the string of a musical instrument.When pouring into gas, this effect generally also can take place.So just cause one to tennis racket 1 effectively complete new performance.

In the superincumbent explanation, suppose that element 17 is totally continuous elements.But also may be divided into several independent elements, connection and fixing on the direction of support profile 8 then so that assembling.

In addition, may make element 17 become the part of total profile, for example can two elements 17 be linked together by a cross bar becomes the profile cross section, shown in dotted line among Fig. 2 19.Moreover, may be on framework profile 2 ' go up or support profile 8 with element 17.

As mentioned above, support profile 8 must be transferred to side force K on the framework by deformation element 17.But simultaneously, support profile 8 or its profile cross section 9 at least edge 9 ' the zone in still enough elasticity should be arranged, make when string of a musical instrument grid 3 is subjected to impacting support profile 8 make inside damped motion by the distortion of element 17.The material that is applicable to support profile 8 is fibre-reinforced plastics, metal or contains metal and the composite of plastics.In order to keep required elasticity in edge 9 ' zone, profile cross section 9 can be constructed like this, for example terminates in the minimizing thickness that leaves edge 9 ' place enough far away and need and/or strengthens the profile cross section for the transfer of exerting all one's strength.This problem can have many kinds of solutions.

When the profile cross section of support profile was made of metal, eyelet member 12 preferably was made of plastics and is inserted into or is formed in the respective aperture in profile cross section 9.In general, always can select for use and a kind ofly more have flexible and flexible material than profile cross section 9 for eyelet member.

Eyelet member 12 in the insertion point or

hole

13 or 14 places certainly closely seal frame profile 2 ' inside.

Shown in Fig. 2 and 3, tension frame profile 2 ' form the area supported 2 of inclination in its exterior lateral area "; carrying on it edge 9 in the profile cross section 9 of support profile 8 ' the zone, it is unlimited to string of a musical instrument grid 3 that this inclined plane and string of a musical instrument grid plan BE form the angle less than 90 °.When being tensioned with respect to the tension force frame, can reduce by the string of a musical instrument motion of above-mentioned support profile 8 like this under the strain in profile cross section 9.

Figure 4 and 5 illustrate another possible embodiment, and this is a tennis racket, and wherein tension force frame 2a is designed to be made up of two parts at least on its partial-length, and a part is the hollow frame 2a ' that in fact seals, and another part is a support profile 8.

The embodiment of Figure 4 and 5 and Fig. 2 and 3 embodiment are relatively, main is not both: do not adopt boring 13 and 14 in framework profile 2a ', become big opening 20 gradually but the outside from framework profile 2a ' extends to inboard diameter, this opening 20 is by funnel-form wall portion 21 sealings towards framework profile 2a ' inside.Therefore have only short eyelet member 12 to be planted in the opening 20.Because opening becomes big at least gradually on perpendicular to the cross-sectional axis of string of a musical instrument grid plan BE, the corresponding string of a musical instrument 4 can not have lateral displacement when therefore being at play, because above-mentioned change just means the expansion of shock surface or string of a musical instrument surface mesh greatly actually.

Fig. 6 and 7 is for similarly to scheme with Figure 4 and 5, the cross section that passes through tension force frame 2b of a tennis racket shown in the figure.Tension force frame 2b has a framework profile 2b ' suitable with framework profile 2a ' and the support profile 8b that function is suitable with support profile 8a.In the embodiment of Fig. 6 and 7, what adopted is not flexible member 17, and be provided in a side of string of a musical instrument grid plan BE both sides, the flexible member 17b between tension force frame profile and support profile 8b or its wing profile cross section 9b.Two elements all are rail-like and all extend along the whole circumference of tension force frame 2b that the tension force frame is made up of framework profile 2b ' and two parts of support profile on this circumference.In the embodiment shown, flexible member 17b is made by elastomeric material such as resilient plastics or rubber.

The suitable shape of flexible member 17b reaches the suitable shape of the space 18b that forms and can decide when the string of a musical instrument 4 is subjected to tension force between framework profile 2b ' and support profile 8b, the support profile 8b that these strings of a musical instrument will be fixed on the tension force frame 2 will be supported on the framework profile 2b at that time.As flexible member 17b during by strain, between the flexible member 17b and the string of a musical instrument, still leave the gap, promptly flexible member 17b does not touch the string of a musical instrument, as shown in Figure 6.

But be at play when racket be subjected to the strike of ball, when having very large tension force to be applied on string of a musical instrument grid or the indivedual string of a musical instrument, the strain of flexible member 17b will be increased to these elements 17b is pressed on the string of a musical instrument 4, along with the increase that is applied to the external force on the string of a musical instrument, the power that compresses of flexible member also increases, therefore can be firmly the fixing string of a musical instrument 4 diametrically, this can use when racket or tension force frame are at play well, and can suppress the vibration of the string of a musical instrument, thereby also suppress the vibration of the tension force frame that causes therefrom.

Supposition damping element 17b is two elements that separate in the superincumbent explanation, but also they may be made an independent rail-like element, has opening on it and can insert the string of a musical instrument.

Fig. 8 one similarly scheme with Fig. 6 and 7, passes through the cross section of the tension force frame 2c of a tennis racket shown in it.Tension force frame 2c has a framework profile 2c suitable to framework profile 2b ' and a support profile 8c that function is similar to support profile 8b.Flexible member 17 is located between tension force frame profile 2c ' and support profile 8c or its wing cross section and is located at the both sides of string of a musical instrument grid plan BE respectively.Support profile 8c makes along all peripheral single-piece of extending of framework 2 by one.Element 17 can be made by material with permanent elasticity or elastomeric material, because its elasticity, it can provide required tension force to the string of a musical instrument.

Also be provided with another one element 17c in the zone of string of a musical instrument grid plan BE between two elements 17, it is bearing in the inboard of support profile 8c on the one hand, and is shelved on the other hand in the groove depression on the tension force frame profile 2c '.In the embodiment shown, element 17c has the cross section of a circle and extends along the total length of support profile 8c not being subjected under the state of tension force, this element is made by the material with damping capacity, and this material can suppress the motion of the string of a musical instrument, and the motion that also can suppress tension bracket is as vibration, impact etc.Therefore element 17c material therefor is a kind of like this material, and it can be out of shape, but will consume kinetic energy when distortion.

When element 17c had continuous form, this element contained perforation so that insert the string of a musical instrument or string of a musical instrument eyelet member.Be distributed on the circumferencial direction of tension force frame 2c but also element 17c may be made several independent elements, at this moment element 17c just must be located between the string of a musical instrument eyelet member.

In the embodiment shown in fig. 8, the function element 17 that is used for producing string of a musical instrument tension force be used for suppressing vibrating, the function element 17c of impact etc. is separated.In addition, as shown in Figure 8, it is to cover on the surface 22 that is roughly parallel to string of a musical instrument grid plan BE on the framework profile 2c that framework profile 2c and support profile are made the free margins of profile cross section 9c by such design, even support profile 8c has a bigger relative motion to framework profile 2c ' like this, the space that forms between support profile 8c and framework profile 2c ' can guarantee that also can not make a profile cross section 9c distortion closely to external seal.

Fig. 9 illustrates another possible embodiment, and tension force frame 2d is made of the framework profile 2d ' and the support profile 8d of sealing.Support profile is to make with the plastics that fibre-reinforced plastics such as fibrous glass silk strengthen in the present embodiment, makes for example leaf spring of the function of this support profile 8d or its wing cross section 9d such as same spring.Support profile 8d also is by making along all peripheral single-piece of extending of framework 2.And tension force frame profile 2d ' is provided with the groove depression 23 that extends at least on a part of framework profile 2d ' in the outside of tension force frame, the support profile 8d of leaf spring is being set thereon, two free ends of this profile cross section 9d are supported in the depression 23, so support profile 9d can resist lateral displacement and is fixed.The string of a musical instrument 4 of string of a musical instrument grid 3 can be maintained at the centre of support profile for example with eyelet member or eyelet member bar (all not shown).

The embodiment difference of the embodiment of Fig. 9 and Fig. 2-8 is that supporting member 8d is made by the composite of fibrous composite such as fibrous glass silk, also is designed to spring element, therefore can not need other damping element and tension element.

Embodiment with various demonstrations illustrates the present invention above, is not abandoning making various modifications under the prerequisite at intention in the present invention certainly.For example also can in the zone of heart portion 5,

tension force frame

2 or 2a be configured to two parts, promptly at the arranged outside support profile of string of a musical instrument grid 3 dorsad by the mode of Fig. 2 and 3 or 4 and 5.In addition, framework profile and/or support profile can adopt the design that is different from the foregoing description certainly.Supporting member also sectional is made, and the periphery along framework links together then.In this case, the length of each section on peripheral direction should be greater than the width of each section.

Claims

1. a racket has a racket head of being made up of tension force frame (2) chord gauze lattice (3), and this string of a musical instrument grid (3) forms a string of a musical instrument grid plan; Also have a handle component, this handle component is formed by Handle axis (6) and careful portion (5) is connected to tension force frame (2),

Described tension force frame (2) comprises following two various parts in the part of racket head at least:

In abutting connection with the tension force frame profile of string of a musical instrument grid, this profile is the hollow profile of sealing along the whole periphery of its cross section; With

Be positioned at the supporting frame profile in the string of a musical instrument grid outside, the string of a musical instrument that forms string of a musical instrument grid is clamped on this profile,

Described supporting frame profile is made and is constituted as a kind of leaf spring of the tensioning string of a musical instrument by fibre reinforced plastics, this leaf spring has two wing profile parts, overhanging round about from the profile center line, described center line is positioned at above-mentioned string of a musical instrument grid plan, wherein the free and bearing of each wing profile is on the periphery of the sealing of mentioned strain frame profile, and

Described supporting frame profile provides a plurality of eyelets along its center line, is used to install the string of a musical instrument of string of a musical instrument grid.