Abstract: Disclosed is an exercise device including flexible suspension unit, a mass, a fastening element and optionally a separate grip, wherein: a) the flexible suspension unit, elongated and thin in shape, are connectable at the level of at least a first end to the fastening element and at the level of an opposite end to one of such components; b) the mass has a through hole through which the suspension unit passes, the through hole being provided with a first opening and a second opening; and c) the fastening element can be blocked on the body of the mass.

Abstract: A rotational stick handling training device, which can be used by athletes, such as hockey players, to improve their stick handling skills. More specifically, a training device comprised of a central support system and one or more rotating projections on which a user can practice avoidance maneuvers. The central support system can include a mechanics housing, rotation mechanics located in the mechanics housing, and a central rod supported by the mechanics housing. Each of the rotating projections can include a shaft and a hockey blade located at a distal end of the shaft. The proximal end of each of the rotating projections can connect to a top portion of the central support system, such as the central rod, and the rotation mechanics can be structured and configured to rotate the central rod, causing the central rod to function as an axis about which the rotating projections can rotate.

Abstract: A golf practice device uses magnetic attraction to implement a ball return function. A ball is fastened to a tether coupled to a post enabling the ball and tether to rotate in a plane around the post when the ball is struck by a golf club. The plane of rotation is at a non-zero angle relative to the ground plane to simulate a launch angle. The magnetic coupling causes the ball to come to rest in the same general position on the playing surface following the rotation. The device is adapted for temporary attachment to a playing surface such as a typical artificial grass mat, and the ball may be a hollow, plastic ball such as a perforated wiffle ball. The ball is also rotatable about the longitudinal axis of the tether to further mimic actual ball flight dynamics. The device can be used for hitting, pitching and chipping practice.

Abstract: A recoiling tethered golf ball has a first hole extending through the ball center and a second hole extending at right angles to the first hole. A nail in the second hole extends beyond the first hole into the golf ball. An anchor has an elongated shaft tapering to a point for insertion into the ground. The upper end is formed into an eye. The anchor has optional threads for attachment to a board or tree. A surgical tubing tether extends from a first end to a second end. The first end is received in the golf ball first hole and is looped around the nail. The tether second end is looped around the anchor eye. A first retaining clip encircles the first end loop. A second retaining clip encircles the second end loop to secure the loop from releasing.

Abstract: A golf swing practice apparatus including a golf ball simulation target and anchor for securing the target to a support surface. The anchor may be a ground stake when the surface is the ground and, alternatively, a mat anchor when the surface is a golf training mat. A connector arm horizontally offsets the anchor out of the way from the target, and can be adjustably positioned relative to the target to raise or lower the position of the target above the support surface as desired. A marker is supported by the target for leaving a mark on the golf club head during a practice swing. The location of the mark relative to the “sweet spot” on the golf club head can be used to adjust the golf swing. The mark can be two marks whose relative sizes indicate whether the target was hit with an open or close face impact.

Abstract: An input device apparatus for providing coordinate data indicative of the motion of an object to a computing apparatus, includes an elongated member translatable along and rotatable about a longitudinal axis, a swing arm attached to the object and to the elongated member such that movement of the object results in corresponding movement of the elongated member, and an engagement surface for engaging an input device of the computing apparatus.

Abstract: The ball detection apparatus is for detecting when a golf ball is hit off a golf tee of an automatic golf ball teeing machine. The detection apparatus comprises a radar device for producing a first signal in response to detecting movement of a golf club towards the tee, a directional microphone for producing a second signal in response to detecting the sound of a golf club striking a golf ball and monitoring means for detecting a coincidence between the first and second signals. An automatic golf ball teeing machine including such ball detection apparatus is also disclosed.

Abstract: A golf swing practicing device includes a light comb member enclosed in a dome member, and a shaft extends through a base plate connected to the dome member and the light comb member. A mounting cap is connected to a top of the shaft extending through the dome member. A flexible rod is rotatably connected to the mounting cap. A golf ball is connected to a distal end of the flexible rod. A sensor is connected to the base plate, and the comb members of the light comb member movably engage between two lugs on the sensor. A display member is connected to the sensor so as to illustrate the information of the golf ball hit by the player.

Abstract: The invention is a portable, self-contained apparatus that will easily mark a practice golf ball with a water-soluble substance. This mark will transfer to the face of any club when the golf ball is struck and will show a golfer exactly where he/she is striking the ball on the face of the club. The ball rotates in a circular horizontal direction when struck. It then rolls over the marker as it is returned to the striking position. The object of the device is to consistently put the mark on the face of the club directly on the “sweet spot” (center of the face of the club). This will enable a golfer to correct mistakes and improve both the long and short games (including putting).

Abstract: Golf practice apparatus, comprising two sphere segments of a simulated golf ball mounted on opposing sides of a pivotal structure, strain gauges mounted on the structure to measure strains caused by a strike force to the simulated ball, means to digitally encode voltages resulting from the strains, and software for determining a three-dimension strike force, torque content thereof, and strike force duration. Strain gauges mounted on the structure between the ball segments determine one component of the strike force and torque about both horizontal and vertical axes. Strain gauges mounted on a support column of the pivotal structure determine the remaining strike force components. Additional software is disclosed for deriving an initial three-dimension velocity vector and spin rates about both horizontal and vertical axes of a free ball similarly struck whereby a three-dimension trajectory of a free golf ball may be computed.

Abstract: Disclosed is a method and apparatus for estimating practice golf shot deviation and distance. The apparatus includes a base, an axle mounted to the base, a golf ball attached to the axle and a sensor coupled to the axle for determining motion thereof. When the golf ball is struck by a golf club, the ball and axle attached thereto rotate around a pivot point provided by the base. When the ball is struck such that it deviates from a plane that is perpendicular to the axle, the sensor detects motion of the axle along its axis. The magnitude and direction of deviation is estimated based upon the detected motion of the axle along its axis. The distance that the ball would have traveled is estimated based upon the detected speed with which the axle rotates.

Abstract: A golf practicing device includes a tube fixedly disposed to a supporting floor with a sleeve rotatably mounted to the tube, a detecting member disposed beside the tube and an illustrative member disposed on a top of the tube. The sleeve has a flange extending radially and outwardly therefrom which has a plurality of protrusions extending downwardly from a periphery of the flange so as to cooperate with the detecting member which is electrically connected to the illustrative member. A base member is attached to the sleeve and has a spherical cavity and a cone-shaped opening respectively defined therein, wherein the cone-shaped opening communicates with the spherical cavity. A rod has a ball member rotatably received in the spherical cavity and a golf ball disposed to a distal end thereof.

Abstract: This invention relates to a device for the teaching of golf characterized in that it includes a pedestal (1), a head (2) mounted on said pedestal (1), said head (2) having a face (3) that is essentially reversed with respect to the face of the head of a golf club, and means for indicating the strike angle (4) of said club on said head (2) that includes a disc (8) integral with said head (2) and rotatably mounted on said pedestal (1) essentially in the plane of the pedestal, said head being positioned approximately at the center of said disc, and means for the display (12) of the displacement of said disc (8) in relation to said pedestal (1) following the impact of said club on said retractable head (2). The head (2) can be fixed or movably mounted on the pedestal in such a way that it retracts under the impact transmitted by the golf club in order not to hinder the trajectory of it.

Abstract: A golf practice device having a base supporting a substantially vertical fixed shaft which supports a wheel mounted for rotation about the shaft, and a ball tethered by at least one flexible cord to the wheel. The device also includes an optical sensor which is disposed adjacent to the wheel to detect the rotation thereof and to output a signal indicative of the rate of rotation. This signal is sent to a processor which calculates the free distance of travel a real untethered ball would have traveled and outputs a signal to a display to indicate the free distance of travel to a user.

Abstract: An arm structure comprises a first arm and a second arm. The first arm is attached to a base and extends generally upwardly therefrom, while being pivotable about an axis perpendicular to its elongated axis. The second arm extends horizontally outwardly from the first arm. A height of a distal end of the second arm above the base is adjustable. The arm structure is configured such that when the second arm is struck by a swinging golf club, the second arm automatically returns generally to the position relative to the base which it had immediately prior to being struck.In one embodiment, a resilient sleeve extends outwardly from a distal end of the second leg. In another embodiment, opposing first and second sleeves are provided at a juncture of the first and second legs. The second sleeve has an elliptically shaped surface adjacent an elliptically shaped surface of the first sleeve.

Abstract: A golf practice device has an angled, curved or straight frame made of tubular steel on which two anchor points are formed between which a rope is tensioned. A golf-ball-like body is tracked along the rope by means of a flexible connector. A strike plate is located on the rope in the vicinity of an upper anchor point. The frame and the rope form a closed tensioning system which generates vibrations in the rope when the body hits the strike plate, where the magnitude and direction of the amplitudes of said vibrations are a function of the point of contact between the body and the strike plate. The vibrations of the rope affect the type of movement of the struck body during its return to the first anchor point such that the user can draw conclusions about the nature of his golf swing.

Abstract: A golf practice device includes: a supporting base, a golf ball secured on a linking arm having a sleeve pivotally mounted on a shaft erected on the base, two rotor magnets having opposite outer magnetic poles and diametrically secured on two opposite ends of the sleeve, two stator magnets having opposite inner magnetic poles and secured on two opposite ends of a housing for surrounding the two rotor magnets for a mutual attraction between each stator magnet and each rotor magnet, a power generator having an iron core wound with coil windings on the core and surrounding the two rotor magnets for generating power due to change of magnetic field when rotating the sleeve and the two rotor magnets with respect to the iron core as driven by a hitting on the golf ball, and a display device for converting the power to an optical and audio signal for a visual and audio display for indicating the striking strength as hit by the golf player, and upon magnetic attraction between each stator magnet and each rotor magnet,