DE1902979A1 - Schlaeger, especially for tennis, squash and badminton or the like. - Google Patents

Description

HELSINGBORGS RUBBER FACTORY AB TRETORN, Fack, 251 01 Hälsinqborq 1 (Sweden)

Rackets, especially for tennis, squash and badminton or similar

The invention relates to a racket for tennis, Squash or badminton and especially the attachment of the covering to the racket.

Rackets of the type mentioned are usually made of wood in the form of a one-piece curved frame manufactured, which holds the covering and which ends in a shaft with a handle. To reinforce and stiffening the curved frame and the handle becomes a laminated material Wood is used, but making the frame the correct curve is largely manual work.

In tennis rackets, ring inserts and grooves or the like are provided on the circumference of the frame known to the strings that are between the opposite sides of the annular part

909837/0227

BATH ORIGINAL

be anxious to keep them in their correct position. Are known - for example from the US patent 3 206 203 - the most varied of designs.

The stringing of tennis rackets is entirely manual work, which is also relatively complicated is, 'so that the covering cannot be exchanged or changed without difficulty. If a player wants to use different coverings, for example a natural cover want to move on to one made of synthetic fiber, when the weather conditions change from dry to wet, he is forced to choose another Racket to use. For this reason, good and careful players have a reserve of various Rackets with different types of stringings are available to suit different weather conditions to be able to adapt and to have a spare racket ready if a string is used during the game rips.

At this disadvantage should the election is that a buyer ψ for example, a tennis racket only

then the embodiment he really wants according to color, shape, weight, weight distribution and brand if the desired design happens to be the right type of covering Has. The invention is accordingly based on the object of eliminating these deficiencies.

This object is achieved according to the invention by a racket for tennis, squash or badminton, according to the invention with a removable and

BATH 909837/0227

adjustable covering is provided. This solution ensures that only one frame or frame is required, in connection with which any number of separately carried clothing can be used. A tennis racket constructed according to the invention therefore has a Versatility that was previously only offered by a large number of different tennis rackets, because the different coverings can be changed within a few seconds ο

A racket constructed according to the invention has a first racket part, which is the stringing, in particular has a covering frame, on the circumference of which the covering is attached; a second part is also provided, which has a main frame, which in turn has the first racket part on its circumference clamps; a handle is attached to the second club part with a handle, and it is one releasable coupling provided between the two racket parts, so that the first racket part without Difficulty can be separated from the second and replaced by another.

The racket is so designed that an exchange of a string against a different stringing is possible, for example if a string breaks or if that Weather changes. The exchange is carried out by separating the two club parts from each other solved and a new first club part is used. It is an additional advantage that the racket according to the invention a shift in the center of gravity according to the wishes of the

3 0 9 8 3 7/0227 BAD original

Player allows, because depending on the requirements, different types and weights of coverings and / or frames.

The first club part, which is formed by the detachable covering according to the invention, has preferably a covering frame in closed form, for example in oval shape. The actual covering is attached to the circumference of this covering frame. For fortification Any known technique can be used for covering the frame, but it should care must be taken that the covering is protected from abrasion and cutting effects from the main racket frame is protected. The covering can therefore be connected to the frame by looping or knotting. However, it is preferred that the covering material in the manner described below, through openings in the covering frame is passed through. There is also the possibility of the covering on the covering frame to be fixed by means of a wire holder, as described, for example, in US Pat. No. 3,206,203 is described. Such a wire holder can be used in any way, for example by gluing be attached to the covering frame. Other ways of defining the covering on the covering frame arise for the expert by themselves.

The second racket part has a main frame that the. Holding frame on its scope. The main frame has an outer frame part which surrounds or encloses the skin frame.

original 909837/0227

Complete containment, however, is not required. Rather, it is sufficient if the main frame holds the covering frame with part of its circumference.

The frames of the two racket parts are preferably provided with mutually adapted surfaces, so that the two frames are detachable, but against slippage or lateral 'displacement in the assembled Are kept in a safe state. In the preferred embodiment of the invention possesses the covering frame has a U- or V-profile in which the one made of a tube, a rod or a rail standing main frame is clamped and in which this main frame fits. It goes without saying that the reverse of this design can also be used, i.e. that the main frame is formed by such a profile. Furthermore, other matching frame shapes can also be used can be used, for example with a tongue on one frame and a groove on the other or with a tongue and slot guide. In those cases · in which there are no mutually adapted surfaces are possible or practical, it is quite sufficient to prevent the two frames from moving relative to each other for example by pins, projections, screws, bolts, tongues, clips, brackets or to secure the like.

The two frames can be made from a wide variety of materials, for example from Metal, in particular steel, but preferably made of stainless steel, of spring steel, Aluminum, chrome-nickel steel, magnesium and alloys of these metals. Other materials are

909837/0227

Wood or plastics such as polystyrene, nylon, Teflon, polyvinylchloride, polyethylene, polypropylene, phenol-formaldehyde, urea-formaldehyde, Polyester or polycarbonate resins, as well as hard natural or synthetic rubbers. For example Both frames can be made of wood or plastic, or one of the frames is made of wood or plastic and the other made of metal. There is also the option of both Making frames from metal.

In the preferred embodiment of the invention the main frame consists of two essentially straight and essentially parallel shafts, which protrude from a symmetrically curved area surrounding the covering frame. The ends these shafts are connected to one another in one handle. This handle can from the shafts to release their connection. Own the outer ends of the shafts Grooves, and in the outer end of the handle is a recessed knob or the like ^ provided with a latch or the like

■ - is connected inside the handle. These

The latch works with the aforementioned grooves to lock the handle and shafts together. The latch can be a latch that is used when the handle is put on automatically fixes the shafts.

In the embodiment of the invention Main frame with shafts, it is particularly preferred to have a tensioner between the two shafts to be provided and to be attached to this, the length of which can be changed. The tensioner can for example shorten to the shafts

909837/0227

towards each other, whereby the main frame is clamped to the circumference of the covering frame. Of the The tensioner also serves to reinforce and stiffen the main frame. In One embodiment of the invention consists of Clamp made of two parts, which are put together by a screw connection. With the help of Screw connections can pull the parts against each other or push them away from each other. Additionally Stops can be provided that completely separate the two parts of the tensioner as well as preventing the two shafts from contracting too far.

The tensioner can be slid on the shafts as long as it is not tightened; however, he can also by brazing, gluing or mechanical means such as pins in a solid Position on the shafts. In the case of a sliding clamp, this can attached at different points on the stem be, whereby a change in the position of the center of gravity of the entire racket is easy Way is possible. In addition, the covering is special in the case of a movable tensioner can be easily replaced.

The mentioned embodiment with the double shaft and the main frame made of tubing surrounding and against the skin frame Pressing with the help of a tensioner is preferred. However, other means of releasable fastening of the two racket parts to one another are provided. This is how the

909837/0227 ^ " ^0RlelNAU

Attach both club parts to each other, for example with the help of U or V clips. Another It is possible to use screws that extend radially from the main frame into the covering frame penetration. Press fits or bayonet-like closures can also be used.

The handle of the racket is preferably detachable from the main frame so that it can be attached to each Time can be taken from this. When using the embodiment of the main frame With a double tube, a detachable handle can be designed so that it has the free ends of the shafts, i.e. the pipe ends in a centrally located socket. The connection can designed as a screw connection, a bayonet lock, a press fit or a spring seat will. The ends of the tubular shafts advantageously have grooves in the grooves provided in the handle Engage pawls or the like to lock the handle to the stem. To the Locking can be used spring-mounted and / or pre-tensioned catches that engage in the shafts, as soon as the handle is pushed over it.

In contrast, it is also possible to fix the handle permanently on the handle. In the case of use a sliding tensioner and the use of resilient metal or plastic for the shafts can be moved by the tensioner on the shafts in the direction of the handle, whereby the parts of the main frame can be separated from each other so far that the one held between them Covering frame can be removed.

909837/0227

Depending on the requirements, the connection between the handle and the handle can be designed to be particularly rigid be, for example, in that the handle has a clamp connection at its upper end having.

When playing, especially when playing tennis, the covering, i.e. the individual The string is particularly heavily stressed, so that at the points where the string passes through the stringing frame are passed through, occasionally breaks in the string material occur. To this one To prevent disadvantage, the edges of the covering frame could be rounded off particularly carefully. As a further feature of the invention it is proposed, however, in the openings of the covering frame Insert plastic bushings or sleeves between each string and the frame maintain a gap. These bushings or the like can be one of projections Insert strip be formed which surrounds the frame, wherein the projections through openings of the frame are pushed through. These sockets reduce the tendency of the strings to move Tearing particularly strong.

A particular advantage of the racket according to the present invention is that each Part of the club can be selected so that each is reasonably needed The center of gravity can be achieved and the racket can therefore be adapted to all player requirements. The center of gravity can be, for example

909837/0227

change in that the frame weights are designed differently, or that the frame is drilled out at certain points; Additional weights can also be attached or hollow areas: to be filled in with filling materials of different specific weights * Furthermore the thicknesses and the types of material of the covering or the main frame can be changed to to achieve the desired center of gravity. The total weight of the racket can be influenced in the same way. So it's through

ψ Changing the covering frame or the main frame

possible to achieve any desired center of gravity or any desired racket weight. Of the Handle can be of any desired color, thickness, taper, and strength.

The invention is explained in more detail below with reference to the preferred exemplary embodiments shown in the drawings. Show it:

Fig. 1 is a plan view of a preferred embodiment of an inventive Racket;

Fig. 2 is a cross-section, on an enlarged scale, taken along line 2-2 in 1 shows the cooperating frame of the racket;

FIG. 3 shows a representation similar to FIG. 2 of another embodiment; FIG.

Fig. 4, on an enlarged scale, a partial section through a tensioner, as he shown in Fig. 1 for connecting the stems of the main frame;

5 shows, on an enlarged scale, a section through the handle according to FIG. 1;

909837/0227

Figure 6 is a section along line 6-6 in Figure 5;

7 shows, on an enlarged scale, a cross-section through another Embodiment of a Schlager handle along the line 7-7 in Fig. 1 for illustration a modified lock;

8 shows, on an enlarged scale, a view of a clamping device;

9 shows a longitudinal section through the clamping device shown in FIG along line 9-9;

Fig.10 shows a cross-section through the outer on an enlarged scale and inner framework of another embodiment of the invention with a plastic insert for guiding the strings;

11 shows a partial section through the

Plastic insert according to Figure 10; and

Fig. 12 is a top view of the plastic insert.

The embodiment of the invention shown in FIG. 1 consists of a first racket part or the covering part A and a second racket part or the main frame B. The first racket part has a covering frame 1, which is formed from a radially outwardly opening U-profile that Depending on the type of racket, it is put together to form a closed, more or less oval frame. On its inner circumference, the frame 1 carries a covering 2 consisting of strings.

909837/0227

The second racket part B, which consists of a main frame 3, is located in the U-shaped channel of the covering frame 1. The main frame 3 is in turn formed by two (preferably made of stainless steel) metal tubes 11, 12 which, as shown in FIG of the circumference of the stringing frame 1 and has two shafts 4, 5, which are straight and parallel to each other apart from the curved area 6 and form the handle of the racket. The shafts 4, 5 end in a base 16 of a handle 9 ^V , whereby this is attached.

At the transition point between the curved central region 6 and the shafts 4, 5 is between them a curved intermediate piece 7 is arranged, which completes the edging of the covering frame 1. · The Intermediate piece 7 has a T-shaped cross section, the web of the T pointing to the handle.

A little further in the direction of the handle are the two shafts 4, 5 through a second intermediate piece or a tensioner 8 connected to one another, which stiffens the shafts 4, 5 and pulls them together, whereby the main frame 3 is held firmly in the U-shaped channel of the covering frame 1. In this way Covering frame 1 and main frame 3 are firmly connected to one another. The exact structure of the tensioner 8 is explained in more detail below in connection with FIG.

The covering frame 1 can be made of metal or plastic

909837/0227

be made, for example from a cast in molds or extruded metal alloy ·. . An aluminum alloy is preferred because of its light weight and strength.

The string frame 1 has a variety of. Openings 50 through which the strings are drawn. The covering can be carried out in any known manner, for example by that the string in through one hole and out through the other and then over is led to the opposite hole or opening, where the process is repeated accordingly, in order to obtain a regular symmetrical covering. It is common that through every opening or Bore two strings are passed through. While the frame 1 is being covered, it should be in a Bracket be housed so that the shape is maintained during the covering that the Frame later in the racket. For example, when the main frame shown in Fig. 1 is used sind.j a holder would have to be used which gives the frame 1 the same shape as the curved one Central area 6 of the main frame 3 ,. because this is the only way to ensure that the covering not discarded after insertion into the club. If you do it this way, you will the stringing frame 1 retained its shape even after the strings have been drawn in, even if a The string breaks once.

The covering in the frame 1 can consist of strings of any type, for example from threading

909837/0227

Strings, made of stranded or twine, twisted or untwisted, such as jute, sisal, agave-like Plants, hemp, polyethylene, Orion, Dacron, Dynel, Terylene, polyvinyl chloride, polyvinylidene chloride, Polyacrylic nitrile, nylon, polypropylene, or made of Elastic thread or twine.

From the foregoing it follows that a player simply determines the type of stringing on his racket can be exchanged by replacing the covering frame 1 to which the covering is carried.

As already mentioned, the more detailed details of the tensioner 8 shown in FIG. 1 are shown in FIG. It can be seen there that the tensioner consists of two overlapping pipe sections 17, 18 consists, which are attached at their ends to sleeves 19,20. The pods are over the stems 4.5 plugged in and soldered to these in the correct position. This is a safe and permanent connection between the tensioner and the shafts guaranteed. The pipe section 18 carries at its free end a threaded area 22 onto which a nut 21 is screwed. the Nut 21 rests against a flange 23 which is provided at the free end of the other pipe section 17 is, so that when it is screwed onto the threaded area 22, the flange 23 against the end face24 of the threaded area 22 pulls and consequently the pipe sections 17 and 18 abut one another holds. The pipe sections 17, 18 each have an interior space 52, both of which are closed at the free ends and are accessible through openings 53, 54. A locking pin is through the two openings 53, 54 2 5 passed through. The ends of the

909837/0227

locking pins are provided with thickenings 26,2 7 and thus have a larger diameter as the diameter of the openings 5, 3.54; the length of the locking pin between the Thickenings are selected so that the pipe sections 17, 18 are only so far apart can that a sufficient distance to remove the covering frame 1 from the main frame 3 between the shafts'4,5 can be achieved. If the shafts 4.5 after removing the Tensioning frame 1 would be pulled too far apart, the main frame could break. But also, if this unfavorable case of breakage of the main frame does not occur, it is in the case of an excessive one Separation of the two shafts to fear that the main frame due to the spring action the shafts were difficult to pull together again. In contrast, it serves the contact of the flange 23 located at the free end of the pipe section 17 on the end face of the other pipe section 18 to prevent excessive contraction of the frame.

The details of the handle 9 shown in FIG. 1 can best be seen from FIGS. The handle consists of two symmetrical segments 55,56, which are made of plastic and through Screws 57 are fastened together. The entire handle is with the help of tape or another wrapped or covered material, not shown. Within each segment there is a Base 16 is provided, which receives the shafts 4, 5 of the main frame 3. The free ends of the shafts 4.5 are pushed so far into the base 16 that they extend to near its ends and in their position in the handle are releasably held by a clutch ID.

909837/0227

^ fe-i «

The one in Pig. 6 shown coupling 10 consists of a disc 31 on a pivot pin 29 sits, which extends through the lower end wall 28 of the handle. On the inside the end wall 28 of the pivot pin 29 is provided with an annular flange 30 which allows axial displacement of the pen prevented. The disc 31 can be rectangular or oval and engages with a Rotation of the pin 29 in grooves 32, 33 of the shafts 4, 5, as can be clearly seen from FIG is; the engaging in the grooves Steift len of the disc are therefore 180 ° against each other offset.

With this pivot pin 29, a rotary knob 34 is connected, which outside of the end wall 28 with the help a pin 35 or the like on the pivot pin is fixed. Therefore, when the rotary knob 34 is rotated through 90 °, the disc 31 is the grooves 32,33 free so that the ends of the shafts 4,5 can be pulled out of the handle 9.

If the entire covering is to be replaced, only the rotary knob 34 needs so far P to be rotated that the disc 31 from the

Grooves 32,33 came out. The handle 9 can then be withdrawn from the shafts 4, 5 and subsequently the nut 21 of the tensioner 8 are loosened, whereupon the shafts 4.5 are separated from each other separate. Then there is enough play between the main frame 3 and the covering frame 1 so that the the latter removed and replaced with a different stenter frame including covering can be. The racket is then made by reversing the aforementioned steps

909837/0227

reassembled.

Another possibility for fixing the handle 9 on the shafts 4, 5 is a simple and reliable one Snap coupling as shown in FIG. In this embodiment, an S-shaped Washer 60 used, which is pretensioned by spring stub 40 attached to the handle. the Nozzles hold the disk 60 in grooves 61, 62 provided in the shafts 4, 5. These grooves are opposite to the grooves shown in connection with FIG rotated by 90 ° each time. To release the handle 9 from the shafts 4.5 are in this embodiment the curved areas at the ends of the shafts and / or the washer 60 rounded or beveled, so that a movement of the disc against the resilient connecting piece 40 opposes this clockwise deflects when there is relative rotation between the handle and Shaft takes place. In this way, the disk 60 can be moved out of the grooves 61,62, see above that the shafts 4.5 can be pulled out of the handle. Of course you can other means of biasing the disc 60 in the position shown can be used, although the illustrated spring connectors are preferred. A stop can also be provided, which limits the rotation of the disc 60 in the clockwise direction.

To ensure that the racket of the invention has a firm and slip-free fit in the area between the handle and the handle, the The handle must be provided with clamping devices,

909837/0227

to clamp it to the shaft. The in Fig. Clamping device shown in Figures 8 and 9 is preferred. At the upper end of the handle 9, on which the two Shafts 4.5 emerge, the handle has two matching clamp segments 41, which can be brought together to cling firmly to the shafts 4,5 of the main frame (in Only one shaft 4 can be seen in FIG. 9). The segments are at the top of the The handle with the help of a screw 64

^ held. The opposing faces

of the segments have internal flanges 42 which abut one another. Above the flanges 42 run the opposite parts of the segments 41 with little play from one another. As a result, a tapering slot 43 is formed, which even when the screw is firmly tightened 64 remains open. The segments 41 extend between the shafts 4, 5 and have a there Opening 44 with a hexagon counterbore 45, which has a hexagon head of a screw 46 against Rotation secures. On the other side of the screw 46 is a knurled and

fc provided with a groove 44, nut that one

cylindrical section that fits into the hexagonal recess. At the screw 46. can thereby inserted from any side through the opening 44 and by tightening the Nut 47 are tightened from the other side.

By tightening the nut 47 on the screw 46, the two segments of the handle become pulled tightly against each other, whereby the tapered slot 43 closes. Through this

909837/0227

the segments press against the shafts 4, 5 and form a firm and permanent connection between the handle and the shaft of the racket. It should be noted that the handle can also be releasably attached to the handle in other ways.

In the embodiment of the main frame shown in Fig. 3, this consists of a single one Tube that is slightly indented to form two opposing concave channels 14,15. The channel 14 has a greater depth than the opposite channel 15 and opens inward in the direction of the U-shaped covering frame 1. The channel 14 delimits a cavity 14 'in which the through the U-profile of the clamping frame 1 Drawn strings lie so that they are not damaged by abrasion or compressed when the main frame is placed over the canvas frame.

In the embodiments described so far, the handle was releasably attached to the handle. It but it should be noted that a releasable fastening of the covering frame in the manner according to the invention but is also possible without a detachable handle, especially when the Frame is not formed from a double tube. But even in the embodiment shown in Fig. 1, it is not necessary that the handle is removable, provided that only the tensioner can be moved on the shafts 4.5. In the event that the Tensioner 8 can be moved away on the tubes from the covering frame 1 and the shafts are long enough the main frame can be opened wide enough to

909837/0227

to allow removal and reinsertion of the cover frame. After that the tensioner only needs to go back up towards the curved area of the main frame to be pushed. Then the tensioner is tightened again to put the new covering in To hold the bat.

As already indicated above, it is desirable to prevent abrasion of the strings on the stringing frame 1 (especially if it is made of metal

fc stands) sockets through which the strings are passed. By preventing the So the possibility of the strings breaking is reduced to a minimum, and the abrasion Durability is also positively influenced by the fact that the surface pressure at the feed-through points becomes smaller and that the strings can move less. A corresponding embodiment of the invention is shown in FIG. In this case a main frame 13 'is provided, composed of an inner aluminum tube 301 and an outer steel tube 302 surrounding it is. The main frame 13 'is in turn seated in a

W ner U-shaped annular groove or the like of a covering frame 1 ', which in this case is a casting made of an aluminum alloy.

The main frame has two centrally running channels, of which the deeper channel is in the covering frame 1 'lies. This creates space for the strings 201, 202 and an insert strip 36 which made of a solid, squeezable and slightly resilient plastic such as polyethylene or , Nylon is made. The insert strip 36 lies

909837/0227

between the covering frame 1 'and the steel tube 302. The insert strip 36 has according to FIGS. 11 and 12 a large number of hollow cylindrical projections 37 penetrating through openings 38 of the Covering frame 1 'protrude and form the sockets for the strings 201, 202.

The projections 3 7 can be used in diameter to accommodate a single string or to accommodate two strings, as shown in FIG. 11 is shown. With the usual types of covering, it is usually necessary that through the same opening two strings running in different directions are passed through the stringing frame. The insert strip 36 will therefore normally be provided with projections 37, the one or two strings'. The distribution and size of the individual projections 37 depends on the desired type of covering. It should be remembered that any common method of stringing can be used. If the Insert strips 36 in the position shown in FIG. 10 between the covering frame 1 'and the Tube 302 is located, each projection penetrates an opening 38 of the frame 1 ·.

According to Fig. 12, it is possible to provide a tapered projection 39, the largest of which Width lies at the point where the string comes out of the space between the stringing frame and the metal tube enters the ledge. This creates a smoother and softer path for those out of the canvas 1 emerging string formed. Another benefit of using the insert strip

909837/0227

with the projections in the manner explained above is that even if a The lead is destroyed by wear and tear due to the string being attached, still a cushion made of plastic is present between the stringing frame and the strings.

The insert strip 36 can consist of two or more There are sections that extend over the entire outer circumference of the stringing frame. the individual areas do not necessarily have to be identical, since the covering 2 is not either necessarily needs to be arranged symmetrically on the covering frame. If desired, can the main frame and / or the covering frame may be provided with depressions that can accommodate one of the insert strip 36 serving channel.

In addition to the various exemplary embodiments shown Other forms of the main frame and other means of attachment can also be used of the covering frame can be used on the main frame. One of these other possibilities exists in making the stem and main frame as a common aluminum casting. The part of the frame that holds the covering frame can, for example, only the segment of the covering frame act on that lies in the area of the stem. The covering frame can be made from steel tubing and fit into a channel in the main frame. He may have an arm that is in a Inclusion in the stem of the main frame extends. A threaded connection can be provided to couple the two frames together.

909837/0227

The main advantage of the racket according to the invention is its great versatility insofar as any desired type of stringing can be used. It is also advantageous that the for the most suitable racket characteristics can be set for any player. Another advantage is that a racket according to the invention has a larger number conventional tennis racket or the like replaced, since no replacement racket is required and must be carried.

909837/0227

Claims (1)

Expectations 1. Racket for tennis, squash, badminton or the like, characterized by an easily detachable and replaceable first racket part (A) with a covering frame (I ;! ') and one on its circumference held covering (2); by a second racket part (B) with a main frame (3), the firstly, club part (A) in the area of its circumference ψ holds; by a handle (4,5) provided on the second racket part (B), at the end of which a handle is provided; by means for releasably coupling the two racket parts (A, B) in such a way that the first racket part (A) is easily removed from the second racket part and can be replaced by a corresponding part; by a cross-sectional shape of the main frame (3) which is elongated transversely to the plane of the covering and has a depression (eg 14 ') facing the covering (2); by designing the covering frame (1; 1 ') as a channel or the like, which partially surrounds the main frame (3) and with its bottom the depression or the like in the main frame "overstretched. 2. Racket according to claim 1, characterized by means (8) for varying the center of gravity of the racket. 3. Racket according to claim 1 or 2, characterized in that the main frame (3) is tubular, has a centrally located ^{central region (6) surrounding the covering frame (I;! 1} ) and terminates in two shafts (4,5), which both run in the same direction and together form the handle of the racket. 909837/0227 • 4. Racket according to claim 3, characterized in that the shafts (4, 5 ^{) can be spread apart to release the stringing frame (IjI 1} ) and are normally held in a relatively closely spaced position by a tensioner (8) which is attached to the shafts (4, 5) is held and extends between them. 5. Racket according to one of the preceding claims, characterized in that the tensioner with stops (25 ', 27) to prevent excessive Auf ^ ^; spreading of the shafts (4,5) is provided. 6. Racket according to one of the preceding claims, characterized in that the tensioner (8) consists of two parts (17, 18) which are guided telescopically into one another and which are relative to one another via a thread (21, 22) are axially displaceable. 7. Racket according to one of the preceding claims, characterized in that the main frame consists of two parallel butting metal tubes (11,12), which are firmly connected to each other at their point of contact. 8. Racket according to one of claims 1-7, characterized in that the main frame (3) is a metal tube (13; 302) which is provided with opposite indentations (14, 15). 9. Racket according to claim 8, characterized in that the: 'immediately adjacent to the covering frame (1; 1 ·) Bart indentation (14) of the metal tube is deeper than the opposite indentation (15). 909837/0227 BATH ORIGINAL 10. Racket according to one of claims 1 - 9, characterized characterized in that the handle (9) is releasably attached to the handle. 11. Racket according to claim 10, characterized in that the handle consists of two symmetrical segments (41) exists. 12. Racket according to one of the preceding claims, characterized in that the handle (9) has a locking device (34, 29 ...) for fixing ™ of the handle on the stick. 13. Racket according to claim 12, characterized in that the locking device of the handle (9) consists of a snap pawl (40, 60) or the like. 14. Racket according to one of the preceding claims, characterized in that the locking device has a pawl (60) which is prestressed by resilient means (40) and which is inserted into grooves (61, 62) in the shafts (4,5) of the handle engages * 15. Racket according to claim 14, characterized in that that the biasing means for the locking device consist of resilient connecting pieces (40). 16. Racket according to one of the preceding claims, characterized in that the stringing frame (l; l ^r ) is designed as a closed component and is provided with openings (38) through which the strings of the stringing are guided. 17. Racket according to claim 16, characterized by a padding (36,37) between the covering frame 'ClJl ¹ ) and the through the openings (38) durchge- 909837/0227 ~ BAD LOCAL GLOBAL led strings as well as the main frame (3). 18. Racket according to claim 17, characterized in that the padding projections (37), sockets or the like which are guided through the openings (38) of the covering frame (2). 19. Racket according to claim 18, characterized in that the sockets (37) are part of an insert strip (36) which is arranged in the intermediate space (eg 14 ') between the covering frame (I;! ¹ ) and the main frame (3). BATH ORIGINAL 909837/0227