Head Technology Gmbh

Head Sport Ag

Design Blue Limited

Herfried J Lammer

Johan Kotze

Ralf Schwenger

Manfred Emberger

Klaus Rambach

Johannes Mauser

Harald Rosenkranz

Jürgen Wilke

Stefan Mohr

Helmut Umlauft

Peter Gorski

Claus Mueller

Nikolaus Hotter

The invention relates to a ball game racket frame () including a head portion (), a shaft portion () and a grip portion (). The ball game racket frame () comprises a fiber composite material having fibers embedded in a matrix. At least 5% of the fibers are natural fibers in at least one cross-section () of a portion of the ball game racket frame (). The invention further relates to a ball game racket frame () in which the proportion of natural fibers in at least one cross-section () of the shaft portion () and/or the grip portion (), respectively, is greater than the proportion of natural fibers in at least one cross-section () of the head portion (). The invention further relates to a method for manufacturing such ball game racket frames ().

Ball game racket frame and method for manufacturing a ball game racket

A sports product may include a support member and an impact region configured to impact an object. The impact region may be coupled to the support member. The sports product may also include a shear thickening material in at least one of the support member or the impact region. The shear thickening material may be configured to exhibit shear thickening behavior when an impact occurs between the impact region and the object.

System and method of using shear thickening materials in sports products

A racket may include a frame including at least one prepreg layer. The at least one prepreg layer may include reinforcing fibers. The at least one prepreg layer may also include a matrix at least partially surrounding the reinforcing fibers. The at least one prepreg layer may also include graphene material.

Sporting goods with graphene material

A racket assembly may include a racket, and at least one sensor operatively coupled to the racket. The at least one sensor may be configured to generate a signal indicative of at least one parameter related to use of the racket. The racket assembly may also include a processor configured to receive the signal as an input and generate an output based on the signal.

Methods and apparatuses for enhancing performance in racket sports

The present invention relates to a grip tape () and replacement grip tape for sports implements, like tennis, squash, racketball and badminton rackets, or clubs, as well as to a process for producing the same. The grip tape and replacement grip tape according to the present invention comprise a phase change material for dissipating and/or storing body heat of a player, so that the grip feeling for the player is improved considerably.

Grip tape for sports implements

The present invention relates to a dampening device for a ball game racket, in particular a tennis, squash, racket ball or badminton racket, as well as to a ball game racket comprising a dampening device of this kind. The dampening device according to the invention comprises a base body made of foam material and a connecting means which is configured such that the dampening device can be fixed to at least one longitudinal string, preferably at least two longitudinal strings of a ball game racket without substantially coupling the embraced strings with each other.

Dampening device for a ball games racket

According to one embodiment of the invention, a sports racket includes a racket frame comprising a head portion, handle portion and a throat portion joining the head portion to the handle portion. The racket frame also comprises a self-powered piezoelectric damping system for damping vibrations of the racket during play. The self-powered piezoelectric damping system comprises at least one transducer laminated to the racket and at least one circuit located within the racket handle portion and electrically connected to the at least one transducer.

Racket with self-powered piezoelectric damping system

The present invention relates to an improved racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and being formed of a frame profile, wherein the racket head defines a stringing plane. The frame profile comprises four trough-shaped depressions which are arranged opposite to one another in pairs and essentially symmetrical with respect to the longitudinal axis of the racket. The depressions are preferably formed in the area between two o'clock and four o'clock and/or eight o'clock and ten o'clock on the racket head. Particularly preferably, the positions are at about three o'clock and/or nine o'clock. The racket of the present invention thus exhibits particularly advantageous ball control characteristics.

Racket for ball games and production process

The present invention relates to a racket, in particular a tennis racket or squash racket having a particularly suitable dampening behavior. For this purpose, the ball game racket of the present invention comprises a racket head, a heart region and a handle portion which together form a frame, wherein in the region of the handle portion and/or in the region of the transition between handle portion and heart region a dampening means consisting of a front and/or a rear dampening element is arranged.

Racket for ball games

A piezoelectric device having a piezoelectric film and methods of making such. The piezoelectric device can be used in circuits to dampen or dissipate vibrations in equipment such as racquets, and ski apparatus.

Flexible piezoelectric films

The present invention generally relates to boards for performing skiing such as downhill skis, cross-country skis, snowboards and the like, to a method of stiffening such boards, and a method of manufacturing such boards. More specifically, the present invention relates to a downhill ski comprising electronics for establishing optimal handling and performance characteristics. The board for performing skiing sports of the present invention generally comprises a longitudinally extending body having a longitudinal axis, at least one transducer laminated to the body and converting upon deformation of the body mechanical power to electrical power, and an electrical circuit connected across the transducer. The electrical circuit supplies power to the transducer, wherein all electrical power supplied to the transducer is derived from power extracted from the mechanical deformation, and the transducer converts the electrical power to mechanical power, wherein the mechanical power is adapted to actively stiffen the board.

Ski, method of stiffening the ski and method of manufacturing the ski

The present invention relates to a racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and being formed of a hollow profile. The hollow profile is formed by winding a plurality of web-like layers. On the racket head and/or in the heart region, the racket comprises at least one dampening layer being wrapped between the layers forming the hollow profile. The racket thus exhibits excellent dampening characteristics and can effectively minimize shock and/or vibration.

Growing community of inventors

Lochau, Austria

Herfried J Lammer