摘要:
A racket (10) capable of being changed in its weight includes handle (20), a main body (30), at least one nut (40, 40', 40") embedded in the main body (30), and at least one bolt (50) threadedly engaged with the nut (40, 40', 40"). The main body has a frame (31) and a connection portion (33) connected between the frame (31) and the handle (20). Because bolts having different weights can be selectively used to be threaded into the nuts, the user can adjust the overall weight of the racket according to his/her need so as to have a suitable racket.
摘要:
Die vorliegende Erfindung betrifft einen Schläger, insbesondere einen Tennisschläger oder Squashschläger mit besonders geeignetem Steifigkeits- bzw. Festigkeitsverhalten. Dazu weist der erfindungsgemäße Schläger für Ballspiele einen Schlägerkopf, einen Herzbereich und einen Griffabschnitt auf, die zusammen einen Rahmen bilden, wobei im Bereich des Schlägerkopfes einzelne Bereiche ausgebildet sind, die Klammern aufweisen, die entlang des Rahmens im Kopfbereich des Schlägers angeordnet sind.
摘要:
There is disclosed a method of making a game racket frame which comprises the use of a tubular body of aluminium alloy consistent with a shape of a racket frame (10). An annular recess (20) is provided respectively at the mid-point of the left-hand half of the head frame (121) and at the mid-point of the right-hand half of the head frame. The annular recess (20) is coated with adhesive resin. The tubular body is placed in a moulding tool (30) comprising a mould cavity (34) having an annular ring which is located at a position corresponding to the annular recess (20) of the tubular body and which has a shape corresponding to that of the annular recess (20) of the tubular body and a size slightly larger than that of the annular recess (20) of the tubular body. Molten plastics material is injected into the mould cavity (34) under pressure and heat. Upon completion of the curing of the plastic material, the racket frame is removed from the moulding tool. The racket frame so made is provided with weight-balancing pieces (16, 18) fastened securely to the head frame (12) of the racket (10).
摘要:
A snap-on weight for varying the weight or balance, particularly in the head (14) of a tennis racket to increase power and control. The weight is secured with a weight holder (18) or clip (40) to the frame (42) of the racket. In one embodiment the holder has a socket (25) for receiving the interchangeable weights (26). The weight is held in the racket by clips formed on the holder engaging adjacent strings or by being clipped on the frame between adjacent strings.
摘要:
Bei einem Tennisschläger (10) mit einem Schlägerkopf (12) aus einem Profilstab (13) als Spannrahmen vorgesehener Bespannung in einer Ebene, einer an den Schlägerkopf (12) anschließenden und vom Profilstab beidseits flankierten offenen Herzzone (18) sowie einem Griff (24), insbesondere mit einem Schlägergewicht von 320 bis 410 Gramm, einer Schlägerlänge von 650 bis 720 mm und einem Balancepunkt, dessen Abstand vom Griffende etwa 310 bis 335 mm beträgt ist ein am/im Griff (24) vorgesehenes Griffgewicht (30), dessen Abstand (i) von der Griffstirn (26) etwa 0 bis 100 mm, insbesondere 0 bis 50 mm, beträgt, und ein am freien Ende des Schlägerkopfes (12) vorgesehenes Zusatz- oder Kopfgewicht (32), das bezüglich der Schlägerlängsachse (M) gleichmäßig verteilt ist, wobei die Gesamtgröße der Gewichte (30,32) etwa 50 bis 150 Gramm beträgt, vorhanden.
摘要:
The present invention relates to a racket assembly, comprising a racket (20) including a frame (24) having a head (26), a throat (28) and a handle (30), at least one sensor assembly (36) operatively coupled to the racket (20) and configured to generate a signal indicative of at least one parameter related to use of the racket (20), and a processor (14) configured to receive the signal as an input and to generate an output based on said signal, wherein the at least one sensor assembly (36) comprises at least one accelerometer (40) to measure acceleration associated with racket movement and wherein the processor is configured to determine the speed of a ball which is struck by the racket (20) on the basis of the measured acceleration.
摘要:
Device for hitting balls, in particular tennis- or squash racquets, with a shaft encompassing a grip, - a head connected to one end of the shaft with a ball hitting surface, in particular in the form of crisscrossing strings, and with a shaft closing cap positioned on the other end and/oron the end of the shaft opposite the head. The shaft closing cap (8) features an opening (11) for receiving at least one weight element (12).
摘要:
A high specific-gravity EPDM composition consisting of a mixture of EPDM containing diene at less than 4.5 wt% and ethylene at not less than 58 wt% nor more than 80 wt% and having a Mooney viscosity ML 1+4 not less than 50 nor more than 170 at 125°C and a powdery material, containing powder whose specific gravity is not less than 12 as a main component thereof, added to the EPDM at not less than 80 wt% nor more than 97.5 wt% of a whole amount of the high specific-gravity EPDM composition.