A transducer attenuates a physiologically damaging vibration by converting vibration energy to fluidization energy. The transducer includes a canister defining a sealed enclosure, a powder contained within the enclosure, and a coupler for vibrationally coupling the canister to the physiologically damaging vibration. When undisturbed, the powder has a settled state occupying less than the entire enclosure of the canister. However, when excited by physiologically damaging vibration, the powder has a fluidized state occupying the entire enclosure of the canister. When agitated by the physiologically damaging vibration via the coupler, the canister transmits vibration energy to the powder contained therein and causes the powder to fluidize, thereby attenuating the physiologically damaging vibration.

A handle for sport equipment comprises a tubular body (7) which extends along a longitudinal axis (L) and has an outer peripheral surface (8) adapted to be grasped by a user and shaped with a plurality of longitudinal faces (9) placed side by side in correspondence of edges (10) adapted to facilitate the positioning of the finger joints of the gripping hand by the user. The edges (10) are arranged along at least one pair of helical or spiral paths that develop around said longitudinal axis (L) with mutually opposite sign to subdivide each of said longitudinal faces (9) into a plurality of areas or flat surfaces (11) sized to accommodate a corresponding phalanx of the gripping hand of the user, each of said areas or flat surfaces (11) being perimetrically delimited by at least one pair of edges (10, 10) of each of the helical or spiral paths.

A handle for sport equipment comprises a tubular body (7) which extends along a longitudinal axis (L) and has an outer peripheral surface (8) adapted to be grasped by a user and shaped with a plurality of longitudinal faces (9) placed side by side in correspondence of edges (10) adapted to facilitate the positioning of the finger joints of the gripping hand by the user. The edges (10) are arranged along at least one pair of helical or spiral paths that develop around said longitudinal axis (L) with mutually opposite sign to subdivide each of said longitudinal faces (9) into a plurality of areas or flat surfaces (11) sized to accommodate a corresponding phalanx of the gripping hand of the user, each of said areas or flat surfaces (11) being perimetrically delimited by at least one pair of edges (10, 10) of each of the helical or spiral paths.

To detect a motion of a hitting tool more precisely by a sensor, provided is a sensor device including: a base member configured to be mounted on a hitting tool via a fitting structure; a substrate joined to the base member; a sensor disposed on the substrate and configured to detect a motion of the hitting tool delivered via the base member and the substrate; a communication unit configured to transmit a detection result of the motion of the hitting tool to an external device; and an exterior member configured to cover the sensor and the communication unit.

A grip assembly for an item of sporting equipment. The grip assembly is built around a core that is an elongated tubular body dimensioned for mounting on a grip mounting portion of the sporting equipment. The tubular body is formed with a three dimensional open structure located between an inner and an outer wall. The outer surface of the outer wall can also be equipped with a sleeve or other cover to facilitate the grip of a user. Sensors and transmission equipment located within the grip structure can be used to transmit data on forces that the grip is being subjected to, to reception equipment located for convenient viewing by a user.

A shock-absorbing handle structure for a sports racquet includes a main core body. An outer surface of the main core body is partially or completely covered with a shock absorbing structure. The shock absorbing structure is made of an ETPU (expanded thermoplastic polyurethane) material. The ETPU material is used as the shock absorbing structure. The shock absorbing structure is attached to the outer surface of the main core body, which has a simple structure. The ETPU material has a better elastic and rebound effect and improves the shock absorbing effect of the whole handle effectively. It is light in weight, and can improve the hand feeling and enhance the anti-slip effect and prevent sports injuries.

Devices systems and methods are disclosed. Among other things, the devices systems and methods can facilitate ergonomic gripping of a handle; conform to the shape of a wrist; enhance golf techniques or performance; enhance racket sport technique or performance; protect a head of a user engaged in contact sports or other hazardous activities; identify concussions, in some cases in substantially real time; provide sterilization of garments; control surgical robots; allow for medical treatment of multiple subjects without disrobing; provide biometric or other data; and/or be used to train muscles or body parts for, for example, performing specified tasks using a body part.

Devices systems and methods are disclosed. Among other things, the devices systems and methods can facilitate ergonomic gripping of a handle; conform to the shape of a wrist; enhance golf techniques or performance; enhance racket sport technique or performance; protect a head of a user engaged in contact sports or other hazardous activities; identify concussions, in some cases in substantially real time; provide sterilization of garments; control surgical robots; allow for medical treatment of multiple subjects without disrobing; provide biometric or other data; and/or be used to train muscles or body parts for, for example, performing specified tasks using a body part.

The present invention discloses a badminton racket, which includes a frame, a grip, a cap and a shaft. The grip includes a gripping portion, a sleeved portion, and a fastening element connected to the gripping portion. The sleeved portion has a first top surface and a first opening. The fastening element is connected to the first top surface, and the fastening element extends from the first opening to the inside of the gripping portion. The cap is sleeved onto the sleeved portion and has a second top surface and a second opening. There is a spacing length between the first top surface and the second top surface, and the cap has a cap length. The ratio of the spacing length to the cap length is between 0.39 and 0.83. One end of the shaft is connected to the frame, and another end is inserted into the fastening element.

The present invention discloses a badminton racket, which includes a frame, a grip, a cap and a shaft. The grip includes a gripping portion, a sleeved portion, and a fastening element connected to the gripping portion. The sleeved portion has a first top surface and a first opening. The fastening element is connected to the first top surface, and the fastening element extends from the first opening to the inside of the gripping portion. The cap is sleeved onto the sleeved portion and has a second top surface and a second opening. There is a spacing length between the first top surface and the second top surface, and the cap has a cap length. The ratio of the spacing length to the cap length is between 0.39 and 0.83. One end of the shaft is connected to the frame, and another end is inserted into the fastening element.