ES2339176T3 - DEVICE FOR BALLING BALLS, PARTICULARLY TENNIS OR SQUASH RACKET. - Google Patents

Abstract

A ball hitting device, in particular a tennis or squash racquet, with a shaft comprising a grip and a head frame (11) connected to the shaft which delimits a ball hitting surface (19) in the form of longitudinal (14, 14') and transverse (20, 20') strings which intersect each other, wherein the longitudinal and transverse strings - in particular, each respectively in a meander form - pass through bore holes (15 or 21) formed at the top and bottom and on the left and right in the head frame (11).. The bore holes (15; 21) for the longitudinal (14) and transverse (20) strings in the two top and the two bottom diagonal bend areas (22) are each at a distance from one another such that, at the expense of a highest and lowest transverse string (20') as well as on the left side and on the right side, another longitudinal string (14') can be drawn essentially parallel to the other longitudinal strings (14), and vice versa.

Description

Device for hitting balls, particularly tennis or squash racket.

The invention relates to a device for hitting balls, particularly tennis or squash rackets, with

-

a handle comprising a fist, and

-

a main frame connected to the handle that delimits a surface to hit balls in the form of longitudinal strings and cross-sections that cross each other, the ropes being longitudinal and transverse -particularly in the form of a meander, respectively- introduced by perforations formed in the main frame on the top and bottom as well as on the part left and right.

       \ vskip1.000000 \ baselineskip
    

This type of devices to hit balls They are in the public domain. As regards this aspect, it refers, by way of example only, to patent DE 10 2005 007 714 A1.

Many players, particularly players of high level, have the desire to determine the number of strings longitudinal and transverse, respectively, so individual. For example, it was discovered that 18 longitudinal strings They are advantageous for high ball control. However, in comparison with a string of only 16 longitudinal strings, The acceleration is less. Therefore, the players who need to his game more acceleration choose 16 longitudinal strings.

Apart, and regardless of previous considerations, it turns out that a smaller distance between the longitudinal strings also leads to greater control of the ball while a greater distance between the ropes Longitudinal offers the advantage of increased acceleration with more effect or spin.

Therefore, the present invention has the aim of providing a device to hit balls of the guy in question, particularly a tennis racket, whose number of longitudinal and / or transverse strings can be modified from simple and individual way.

In addition, the invention aims at provide measures that allow slight distance modification between the longitudinal strings, for, for example, to satisfy the A player's desire to get more effect or spin. These measures they must be such that the player can do them himself when tensing The racket strings.

The first objective is solved by characteristics of claim 1.

The other objective is mainly solved by the measures of claim 3.

To increase or reduce the number of strings longitudinal, for example, in two longitudinal strings, without the parallelism is lost and, where appropriate, the default distance I went in over and over, you have to space the perforations for the longitudinal and transverse strings in the area of the diagonal arch upper and lower so that, at the cost of a rope upper and lower transverse, both on the left and in the on the right, you can string an additional longitudinal string substantially parallel to the others, and vice versa. The reduction of the number of longitudinal strings when extracting, for example, the two longitudinal strings at both ends, will result in a increase in the number of cross strings in exactly the same number of longitudinal strings extracted. That is, in a string with (n), e.g., 16 or (n + 2), e.g., 18 strings longitudinal and (m), eg, 21 or (m - 2), eg 19 strings transverse, the (n - 4) or 12 interior longitudinal strings and the (m - 4) or 17 inner cross strings follow introduced without changes or rearrangement of the strings outer longitudinals in outer transverse ropes, and vice versa, through the perforations assigned in the frame principal.

After all, according to the invention, the deviation from the outer longitudinal cord to the rope outer transverse in the main frame scrolls by a distance to the transverse strings up or down. During the displacement of this deviation upwards, effect a reduction of the longitudinal cords in both external longitudinal strings, with the corresponding increase of the cross strings in the same number of strings reduced longitudinal, and vice versa.

A substantial point of the theory according to claim 3 and following, which can be carried out in combination with the above-mentioned theory, but also independently of it, consists in the fact that the cross-section of the perforations, to introduce less a central part of the longitudinal and / or transverse ropes, is formed considerably larger than the diameter of the longitudinal and / or transverse ropes themselves, and that on the outer and / or inner side of the main frame, the upper and lower perforations as well as, where appropriate, on the left and right side, respectively, is assigned a ribbon of square brackets with openings to introduce the longitudinal or transverse ropes, whose cross section corresponds approximately to the cross section of the longitudinal or transverse ropes, respectively , and whose distance from each other determines the distance between the longitudinal strings or tr adjacent ansversales in the surface region hitting the
ball.

Preferably, a set of at least two upper / lower bracket straps and in the left / right part, the tapes being characterized square brackets of such a set, respectively, for a distance other than the openings for the passage of the longitudinal cords and / or transversal. The distance of the passage openings varies within the predetermined range so that the passage openings of the square brackets are always within the larger cross sections of the assigned perforations in the main frame.

This way, you can change the distance between the longitudinal and / or transverse strings within a default margin using square brackets to get more or less effect or spin. As mentioned at the beginning, a greater distance of the longitudinal strings has the advantage of produce an increased acceleration with more effect or spin, and vice versa. Preferably, this type of square brackets also They are called "modules."

In the embodiment mentioned above with two upper / lower square brackets or on the side left / right, the distance between the passage openings Adjacent is 11.5 mm and 11.1 mm, respectively. This rank of variation is enough to solve the second objective above mentioned.

Bracket straps are shaped conventional as plastic tapes with shaped passage openings of tube. In these tube-shaped passage openings you can place a perforated tape with which you can set the distance between the openings in the form of a tube inside the perforations in the main frame. The perforated tape is placed on the tube-shaped passage openings on the opposite side in the clasp tape of the main frame, as a rule on the side radially inside the main frame.

Next, two forms of realization of the construction according to the invention by means of the attached drawings, in which:

Figure 1 shows a view from above schematic of an area of the upper diagonal arc of a frame main formed according to the invention next to the string correspondent; Y

Figure 2 shows a longitudinal section schematic of a part of a tennis racket with the part upper and lower central of the main frame.

The area of the arch is shown in Figure 1 upper left diagonal 22 of a main frame 11 of a tennis or squash racket with longitudinal strings and cross sections 14 and 20 set in this region. In the main frame 11 the perforations 15 for the ropes are formed lengths 14 or 14 'and the perforations 21 for the ropes 20 or 20 'cross sections. These perforations are, at least in the two upper and lower diagonal arc areas according with the area of arch 22, spaced apart so that, at the expense of a top transverse rope 20 'and according to a rope Transverse lower, can be stringed both on the left side as on the right an additional 14 'longitudinal rope substantially parallel to longitudinal ropes 14, and vice versa. In this way, the deviation area also moves 23 between, on the one hand, the transverse rope at the end and, on the another, the longitudinal string at the end in the bow area diagonal 22 of the main frame 11 towards the bidirectional arrow 24.

With a string of 16 or 18 longitudinal strings 14 or 14 ', also designated in Figure 1 as "CL", and 21 or 19 20 or 20 'cross strings, also designated in Figure 1 like "CT", the 12 inner longitudinal strings 14 and 17 20 inner cross strings remain unchanged no rearrangement of the outer 14 'longitudinal strings in the 20 'outer cross strings, and vice versa, in the assigned holes 15 or 21 in the main frame 11.

When, to decrease 18 longitudinal strings "CL" in 16 longitudinal strings "CL", the two are extracted longitudinal strings 14 'outside, this way the number of 19-string "CT" cross strings transverse 20 to 21 transverse cords 20, 20 '. That is, of in this way two 20 'outer cross strings are found additional, as shown in figure 1 with lines interrupted by points.

That is, to implement the measures above mentioned, they are planned, in the main framework, in the two areas of upper and lower diagonal arc 22 at least 2 perforations 15 or 21, respectively, that allow a deviation from the outer cross strings to the longitudinal strings outside, and all this while maintaining the default distance mutual between the longitudinal or transverse strings.

Figure 2 shows -as already mentioned- the schematic longitudinal section of a part of a racket of tennis with the upper and lower central part of the main frame 11, being assigned to the bottom of the main frame a square brace tape 17 with more spaced openings or passageways specifically in the form of a tube 18, and to the part top of the main frame 11 a square bracket 16 with passage openings less spaced apart or passage openings in tube shape 18. Naturally, during effective use, you will be assigns both the top and bottom of the frame main 11 a square brace, respectively, with openings step 18 that have the same distance from each other.

Naturally, the racket shown alone partially in figure 2 presents a handle comprising a fist which is connected to main frame 11 either directly or by means of a throat 12, the throat 12 being delimited laterally by two shoulders 13. On the side opposite the frame main 11, shoulders 13 become part of the handle. He main frame 11, which is normally oval shaped and comprises a hollow plastic profile, delimits a surface to hit balls 19 in the form of longitudinal strings 14 that cross between yes and cross strings that are not illustrated in figure 2 for reasons of greater understanding. The longitudinal ropes and transversal are introduced, respectively, in the form of meander by perforations formed on the left and right side as well as upper and lower of the main frame (see also the Figure 1).

As seen very well in Figure 2, the cross section of the perforations 15 for introduction of longitudinal strings 14 is formed considerably more larger than the diameter of the longitudinal ropes themselves 14. The bore diameter 15 is approximately 4-5 times larger than the outside diameter of the longitudinal ropes 14.

Pipe-shaped passage openings 18 for longitudinal ropes 14 are introduced radially on the side exterior of the main frame 11 in the perforations 15, the pipe-shaped passage openings 18 integral part of a tape square brackets 16 or 17. The free cross section of the openings of tube-shaped passage 18 in the two square bracelets 16, 17 corresponds approximately to the cross section of the strings Longitudinal 14. Obviously, the distance between the openings of tube-shaped passage 18 determines the distance between the strings adjacent longitudinal 14 in the surface region for hit 19.

From the radially inner side of the frame main 11 a perforated tape 25 is inserted over the openings in the form of a tube to stabilize the mutual distance between the tube-shaped passage openings inside the perforations 15 considerably larger in the main frame and for Fix it permanently.

As mentioned above, there is a set of at least two square brackets 16 or 17 upper / lower - and where appropriate also in the part left / right, the square brace bands being characterized this set of square brackets, respectively, by a distance other than tube-shaped passage openings 18 for the passage of the longitudinal ropes 14. The distance of the step openings 18 varies within a predetermined range of so that the passage openings 18 of the bracket bands 16 or 17 are always within the cross sections more large perforations assigned in the main frame 11. This fact is perfectly seen in Figure 2.

In a specific embodiment with a set of two upper / lower 16 or 17 square brace bands, the distance between the tube-shaped passage openings 18 Adjacent is 11.5 mm (see Figure 2 for square brackets) 17 bottom) and 11.1 mm (see figure 2 for the square brackets 16), respectively.

Here it is warned again that they should be used, both top and bottom, square brackets of the same type, respectively. The same applies when used on the left and right side square brackets to adjust a different distance from the cross strings.

Otherwise, the tennis racket shown on the Figure 2 is formed in a conventional way, so that it is not A detailed description is necessary. Naturally, the same is from application for the tennis racket according to figure 1.

All features revealed in the Patent application documentation is claimed as part substantial of the invention, as long as they constitute, so individual or in combination, a novelty against the state of the technique.

       \ vskip1.000000 \ baselineskip
    

Reference numbers

eleven

Main frame

12

Throat

13

Shoulders

14

Longitudinal ropes

14 '

Additional external longitudinal rope

fifteen

Perforations in the main framework 11 for longitudinal strings

16

Bracket tape with 18-way openings spaced each other

17

Clasp tape with passage openings 18 slightly more spaced apart

18

Pipe-shaped passage openings for ropes lengths as an integral part of square brace tape 16 or 17

19

Surface to hit balls

twenty

Cross strings

twenty'

Additional outer transverse rope

twenty-one

Perforations in the main frame 11 for the passage of cross strings

22

Diagonal arc area of the main frame eleven

2. 3

Deviation area for longitudinal ropes and outer transverse

24

Bidirectional arrow

25

Perforated tape

       \ vskip1.000000 \ baselineskip
    

References cited in the description

This list of references cited by the applicant has been prepared solely as an aid to the reader. It is not part of the European Patent document. Although much attention has been paid to compiling the references, errors or omissions cannot be avoided, so the EPO declines all responsibility in this regard .

Patent documents cited in the description

- DE 102005007714 A1 [0002]

Claims (6)

1. A device for hitting balls, in particular a tennis or squash racket, with

-

a handle comprising a fist, and

-

a main frame (11) connected to the handle that delimits a surface for hitting balls (19) in the form of longitudinal strings (14, 14 ') and transverse (20, 20') that cross each other, being the longitudinal and transverse strings

-

in in the form of a meander, respectively - introduced by perforations (15 and 21) formed in the main frame (11) in the top and bottom as well as on the left and right.

characterized by the fact that the perforations (15, 21) for the ropes Longitudinal (14) and transverse (20) are spaced in the two upper and lower diagonal arc areas (22), respectively, so that you can, at the cost of a rope upper and lower transverse (20 '), string both in the part left as on the right an additional longitudinal rope (14 ') substantially parallel to the other longitudinal strings (14), and vice versa.

         \ vskip1.000000 \ baselineskip
      

2. Device for hitting balls according to claim 1, characterized by the fact that in a string with (n), e.g., 16 or (n + 2), e.g. 18 longitudinal strings (14, 14 ') and (m), eg, 21 o (m - 2), eg 19 cross strings (20, 20 '), (n - 4) or 12 internal longitudinal strings (14) and (m - 4), eg, 17 inner cross strings (20), respectively, follow introduced without changes or rearrangement of the strings longitudinal (14 ') outer cross strings (20') external, and vice versa, through the perforations (15 or 21) assigned in the main frame (11).

         \ vskip1.000000 \ baselineskip
      

3. Device for hitting balls according to claim 1 or 2, characterized by the fact that the cross section of the perforations (15 or 21) to introduce at least a central part of the strings Longitudinal and / or transverse (14 or 20) is formed considerably larger than the diameter of the strings themselves longitudinal and transverse and that, on the inner side and / or outside the main frame (11), is assigned to the perforations (15 or 21) upper and lower as well as, where appropriate, in the part left and right, respectively, a square bracket (16 or 17) with openings (18) to pass the longitudinal ropes and transversal, whose cross section corresponds approximately to the cross section of the longitudinal strings and transversal, respectively, and whose distance between them determines the distance between longitudinal and transverse strings adjacent in the surface region to hit balls (19).

         \ vskip1.000000 \ baselineskip
      

4. Device for hitting balls according to claim 3, characterized by the fact that a set of at least two is available upper / lower brackets and / or on the side left / right (16 or 17) that are characterized, respectively, for a different distance from the openings (18) to pass the longitudinal and / or transverse strings (14 or 20), varying the distance of the passage openings (18) only inside of a predetermined range, so that the passage openings (18) of the square brackets (16 or 17) are always within the largest cross sections of the perforations (15 or 21) in the main framework (11).

         \ vskip1.000000 \ baselineskip
      

5. Device for hitting balls according to claim 4, characterized by the fact that in a game with two square brackets upper / lower or left / right (16 or 17), the distance between adjacent passage openings (18) is 11.5 mm (square brackets 17) and 11.1 mm (square brackets 16), respectively.

         \ newpage
      

6. Device for hitting balls according to claim 3 to 5, characterized by the fact that the passage openings (18) in the belts square brackets (16 or 17) are defined in each case by small tubes of those that are an integral part, whose free cross section is corresponds approximately to the cross section of the strings Longitudinal and associated cross strings.