Abstract: In a dynamic damper including: a torque transmissible tube member; a mass member housed within an inside of the tube member concentrically to the tube member; and a pair of elastic members, both ends of the mass member in a center axis direction of the tube member are coupled to the tube member via the pair of elastic members, the mass member includes a large mass section interposed between the pair of elastic members, a length of the mass member in the center axis direction of the tube member is longer than a diameter of the large mass section, and, from among two different bending resonance vibration modes of the tube member, a node of a higher order bending resonance vibration mode is placed at a position between the pair of elastic members.

Abstract: A rotary ski slope comprising an inclined disc which is rotatable about an axis and has a diameter of at least 100 metres. The disc may be divided into a number of concentric rings (1) which are rotatable at different speeds. Means are preferably provided to circulate coolant across the entire under surface of the disc to prevent the snow from melting. The entire surface of the disc is preferably available for skiing with snow conditioning and grooming apparatus (49, 52) being mounted away from the surface, or selectively retractable from the surface. The upper surface of the disc may be non-planar to set up “wave” allowing a variety of skiing conditions to be provided.

Abstract: The present invention is to provide a billiard cue having an improved shaft. The shaft includes a wooden main shaft, an interior shaft, and an exterior coating. The wooden main shaft has a hollow core with a predetermined length extending along the direction of a longitudinal axis of the main shaft. The interior shaft is made of a material harder than the wooden main shaft and is tightly received in the hollow core of the main shaft. The exterior coating is made of a fiber composite material and is coated on the exterior periphery of the main shaft. Accordingly, the main shaft takes advantages of the wooden material and can prevent curvature and/or deformation by means of the interior shaft and the exterior coating.

Abstract: A combination putting green for golf putting training of the present invention has a base, which has two convex blocks at two sides thereof. A ball path unit disposes on the base, which has three supporting devices at bottom side thereof. The supporting devices respectively pivot to three supporting bases on the base, whereby the supporting devices can be turn to change the slopes of the ball path. A goal mounts on the ball path unit. Three press-typed inductors dispose on the base under the ball path unit. The inductors will be activated when a ball runs over the ball path unit. A speaker mounts in the base for broadcasting an audio message while the inductor is activated, and a power supply installs in the base to provide the necessary power.

Abstract: A golf practice device has a body that includes at least one battery, a display generator that presents a visual or audio display when energized by the battery, and a sensor switch that closes an electrical circuit that connects the battery to the display generator when the device is struck by a golf ball. In one embodiment, the bottom of the body is attached to a pin which is inserted into a golf green. In another embodiment, the bottom of the body is made of a material having many small hooks on it so that the body will grasp onto a fabric, such as a carpet. When a golf ball strikes the golf practice device it presents a visual or audio display to the golfer.

Abstract: An improved golf ball marker comprises a cap having a generally hemispherical hollow, the hollow having approximately the same dimensions as one half of a standard golf ball, the cap having first and second linear slits forming a “T” shaped slit configuration for marking a golf ball inserted in the hollow with a “T” mark comprising a seam indicator line and a club alignment line. The golf ball is positioned and oriented in the hollow of the cap such that the seam is aligned with the first linear slit for making the seam indicator line on the ball with a marker and the second linear slit is perpendicular to the seam for making the club alignment line on the ball.

Abstract: A set of golf clubs is characterized by club heads having striking face inserts at least one of which varies in thickness, density, and/or material from the other inserts so that the heads have different centers of gravity. Preferably the long irons in the set have a lower center of gravity (because of thinner or less dense inserts) to increase the trajectory of a struck golf ball. The short irons have a higher center of gravity to reduce the trajectory of a struck golf ball.

Abstract: A dynamic balance mechanism includes an adjusting barrel adapted to be adjustably extending into the club head and having a portion of the shaft securely received inside the adjusting barrel. A rotation of the adjusting barrel adjusts the relative position between the club head and the shaft.

Abstract: A golf club head comprises a main body that defines a front face. The front face includes a plurality of projections extending from the front face. The ends of the projections define a plurality of individual contact surfaces for striking a golf ball. The plurality of projections prevent a golf ball from contacting the front face thereby resulting in a change of the golf ball general contact area. A golf club incorporating the club head provides improved control of a golf ball and also provides improved feel when the club head impacts a golf ball.

Abstract: A golf club preferably in the form of a golf putter includes a hard stainless steel club head having a striking surface for contacting a golf ball with a recess formed therein. A softer brass plate and an advertising insert closely fit within the recess, and are covered by transparent epoxy which hardens to form a portion of the striking surface through which advertising printed on the insert is visible. The club head further includes a rear recess behind the front recess, between which is defined a thin perforated wall. The stainless steel body, the brass plate, the transparent epoxy, and the perforated wall provide a golf putter which has a large sweet spot and which provides for advertising.

Abstract: A golf club (40) having a club head (42) with a face component (60) and an interchangeable aft body (61) is disclosed herein. The face component (60) has a striking plate portion (72) and a return portion (74). The aft-body (61), which is attached to the return portion (74) of the face component (60), is selected from a plurality of aft-bodies, each having a different center of gravity location. Each of the aft-bodies (61) is composed of a crown portion (62), a sole portion (64), and at least one weight member (122) for adjusting location of the center of gravity. An aft-body (61) is selected from the plurality of aft-bodies (61) based on its center of gravity location, so as to provide the club head (40) with a center of gravity location suited to a particular golfer.

Abstract: Molding equipment and related techniques for forming a golf ball are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath are disclosed. The molding equipment provides one or more selectively positionable knock-out pins along the surface of the molding chamber. These pins are specially tailored such that after their retraction subsequent to molding, the resulting voids are deep dimples. The molding equipment and related processes are particularly useful when forming the various layers by reaction injection molding.

Abstract: The present invention provides a three-piece solid golf ball, of which flight distance is improved by accomplishing high launch angle and low spin amount in initial flight performance, while maintaining soft and good shot feel, when hit at low head speed. The present invention relates to a three-piece solid golf ball comprising a center, an intermediate layer and a cover having many dimples on the surface thereof, wherein hardness distribution of the center; hardness distribution between each layer and the contiguous layer in the golf ball; and a ratio of the golf ball surface area occupied by the dimple to the total surface area of the golf ball and the total of a periphery length of the dimple; are adjusted to specified ranges.

Abstract: A process for producing golf ball comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer and/or into a layer or component underneath is disclosed. The cover may be a single layer or it may include multiple layers. If the cover is a multi-layer cover, the dimples extend to or into at least the first inner cover layer, and may extend into two or more inner cover layers. If the cover is a single layer, the dimples extend into the core. The dimples may be spherical or non-spherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple.

Abstract: A golf ball comprising a core and a cover layer. The core defines at least one depression along its outer surface. The cover layer provides at least one aperture that extends through the cover layer to the core. The aperture of the cover is aligned with the depression of the core. The cover may be a single layer or it may include multiple layers. The aperture(s) may be spherical or non-spherical, and the portion of the aperture that extends to the next inner layer may be the same or different shape as the outer portion of the aperture.

Abstract: Golf ball 1 has a core 2, a mid layer 3 and a cover 4. The mid layer 3 comprises a matrix of which base material is a rubber or a synthetic resin, and solid particles which are dispersed in this matrix. Hardness Hg of the solid particles is greater than hardness Hm of the matrix. Difference between both hardness (Hg-Hm) is greater than 5. Particle size D of the solid particles is 0.5 mm or greater. A ratio “D/T”, i.e., a ratio of the particle size D of the solid particles to the thickness T of the mid layer is equal to or greater than 0.1. A proportion of the solid particles occupied in the mid layer 3 is 5% by weight or greater and 50% by weight or less. Hardness Hg of the solid particles is equal to or greater than 40. Hardness Hm of the matrix is equal to or greater than 30.

Abstract: The present invention is directed towards a golf ball which comprises a core, a cover and at least one improved intermediate layer disposed between core and the cover. The intermediate layer a composite of at least two dissimilar materials that is radially oriented and transversely isotropic so that the layer provides unique performance properties when the ball is struck with different clubs.

Abstract: A golf ball having a core comprising metallocene catalyzed polyolefin and having a PGA compression of no greater than about 85 and a multi-layered cover disposed about the core having a thickness of at least about 3.6 mm is described. A golf ball is also described having a core with a PGA compression of no greater than about 85 and a multi-layer cover with a thickness of at least 3.6 mm (0.142 inches) and a Shore D hardness of at least about 60 wherein at least one layer of the multi-layered cover comprises a high acid ionomer resin having at least 16% by weight of an alpha, beta-unsaturated carboxylic acid. The combination of a core with a thick, relatively hard multi-layer cover results in a ball having better distance than conventional golf balls having a comparable coefficient of restitution.

Abstract: The present invention is a golf ball having a core, a cover and a lattice structure aerodynamic pattern. The core has a diameter of 1.50 inches to 1.56 inches, and a PGA compression of 55 to 70 points. The cover has a thickness of 0.60 inch to 0.90 inch. The cover has a Shore D hardness less than 64 on the golf ball. The golf ball has a ball velocity off a driver at a medium speed that is greater than 132.7 mph.

Abstract: A solid golf ball includes a core formed from a rubber composition and a cover directly covering the core. The cover is formed from a cover material mainly containing a thermoplastic urethane resin by injection molding using a mold composed of upper and lower mold halves. The core has a hardness, expressed by a deflection measured under an applied load of 5 kg to 130 kg, in a range of 2.0 mm or more. The cover has a thickness in a range of 0.9 mm to 1.7 mm. Assuming that a parting plane of the upper and lower mold halves is taken as an equator, each of the upper and lower mold halves has air vent portions in a region within a radius of 10 mm, measured as that projected on the equator plane, from a pole of the mold half. The total length of gaps of the air vent portions formed in the upper and lower mold halves is in a range of 90 mm or more. The width of each of the gaps of the air vent portions is in a range of 0.01 to 0.08 mm.

Abstract: An athletic training device having a frame which is attached to a base at lower end and one or more guide rails at a higher end. Attached to the rails are one or more antennas which are resilient and flexible in nature. The rails preferably have a forward length which can be adjusted up or down which will corresponding shift the position of the attached antennas. The apparatus is used by starting a tennis game stroke at or near the rear length of the rails and progressively moving one's racquet progressively forward so as to impact the free ends of the antennas in the follow-through of the stroke. Because the rails and attached antennas can be adjusted in position, various stroke techniques can be practiced. Sensors are activated to show impact with the rails and a proper technique.

Abstract: An apparatus, a system and a method are provided for a net having rods interconnected by joints. The apparatus has two types of joints. The first type of joint arranges rods linearly. The second type of joint arranges rods perpendicularly. The apparatus and/or system may be assembled and disassembled without separation and/or removal of any of its components. In addition, the apparatus and/or system may have netting which attaches to covers placed around the rods. A method for assembling the apparatus and/or system is also provided.

Abstract: The present invention provides a sports toy with multiple instructional modalities which combine auditory, visual, and kinesthetic stimulation to teach and reinforce language skills. In one embodiment, a sports toy comprises a goal defining an aperture and a switch associated with the goal for indicating that a goal has been scored. A memory is operatively associated with the switch. A voice synthesizer is operatively associated with the memory and a speaker is in turn operatively associated with the voice synthesizer. Code stored in the memory causes sounds associated with language to sound from the speaker after the switch is activated. The sounds associated with the language include letter names, letter sounds, words, or phonics. The sports toy may also comprise an electronic visual display operatively associated with the memory for displaying stored images, such as letters or words, after the switch is activated.

Abstract: A basketball rim assembly for use with a basketball system is disclosed. Desirably, the basketball rim assembly is movable between a collapsed position and a use or playing position. The basketball rim assembly may include a rim, an upper back plate connected to the rim, a brace connected to the rim, and a lower back plate connected to the brace. The lower back plate is preferably positioned proximate the upper back plate when the basketball rim assembly is in the collapsed position and the lower back plate is spaced apart from the upper back plate when the basketball assembly is in the use position. The basketball rim assembly may also include a connecting member that connects the upper back plate to the rim and a mounting plate that is sized and configured to be connected to the upper back plate and the lower back plate.

Abstract: In this method, a braided fiber envelope is slid over the core of the hockey stick blade and a promoted resin is applied on the core and the fiber envelope. At least one pre-cured reinforcement panel is provided on at least one side of the blade. The resulting assembly is heat pressed so as to secure the reinforcement panel to the blade and shape the blade. A hockey stick shaft constructed in accordance with this method is also disclosed. This construction provides a lighter hockey stick blade with improved mechanical properties compared to previous ones.

Abstract: A multi-wall bat of the type used for playing baseball or softball. The bat includes a hollow metallic inner wall having a spiral textured surface and a hollow metallic outer wall surrounding the inner wall. The outer wall lies against the spiral textured surface of the inner wall, whereby the area of contact between the inner and outer walls of the bat is minimized. By virtue of the precise and constant contact between the outer wall and the raised peaks of the textured surface of the inner wall, the inner and outer walls are adapted to flex both independently of and simultaneously with each other in response to a ball striking the bat. One of the inner or outer walls is capable of being slidably displaced relative to the other wall in response to a ball striking the bat.

Abstract: A broadhead being attachable to an arrow shaft, includes a blade support having an internal passage defined in a blade receiving body, the blade receiving body having a plurality of slots defined therein extending from the internal passage to a blade receiving body external margin and having a camming surface. A translatable ring is disposed in the internal passage, and a plurality of extendable blades, each blade being shiftably coupled to the ring proximate a blade first end and being at least partially disposed in a respective slot when in a blade retracted disposition, a blade second end being cammable outward to a blade extended disposition by interaction with the body camming surface. A method of operating an expandable broadhead is further included.

Abstract: A polyurethane ball for games and sports includes a core portion made of relatively heavy and low-cost materials and in the shape of a regular spherical body, and an outer portion made of a polyurethane material and having a predetermined thickness to enclose the entire core portion. The ball is manufactured by way of centering a pre-molded core portion in a mold and filling the mold with the polyurethane material to produce an integral ball. The materials for the core portion include rubber or foamed rubber, plastics or foamed plastics, or recycled wood materials. A heavy-weight filler, such as powdered calcium carbonate, may be blended into the materials for the core portion, so as to effectively control an overall weight of the polyurethane ball.

Abstract: The invention comprises a tensioning idler. An outer belt bearing ring is resiliently engaged to an inner ring. The belt bearing ring and inner ring each rotate about an axis of rotation. The belt bearing ring is connected to the inner ring with the resilient material whereby the belt bearing ring rotates about an axis of rotation that is eccentrically moveable in a plane with respect to an inner ring axis of rotation. The resilient material imparts a belt tension as the belt bearing ring rotates. The resilient material may comprise springs, compressible fluids, incompressible fluids, or elastomers or a combination of the foregoing. The tensioner is mounted on an engine, bracket, or other device.

Abstract: A method and system are taught for a tensioner for an endless power transmission belt in an engine. The method and system comprise an AGS pulley and crankshaft pulley coupled to the belt, one of the AGS pulley or the crankshaft pulley operating as a driving pulley that drives the belt so that a tight span and slack span are created in the belt on opposite sides of the driving pulley. The method and system also comprise accessory pulleys coupled to the belt. The tensioner comprises first and second arms, each arm rotatably coupled to a pulley, the pulleys being positioned such that a first one of the pulleys is coupled to the tight span and a second one of the pulleys is coupled to the slack span.

Abstract: The invention comprises a method of using tensioners to tune a belt drive system. A tensioner having a damping rate is used on an accessory belt slack side and a tensioner having a having a damping rate is used on an accessory belt tight side. Outside of a predetermined engine speed range, the tight side tensioner arm does not move because the dynamic tension in the span is less than the tight side tensioner friction damping. Within a predetermined engine speed range the tight side tensioner arm moves in order to damp a belt drive system vibration.

Abstract: A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The belt tensioner further comprises a cavity between the arm and the support member and a bushing comprising a bowed flange positioned in the cavity.

Abstract: A fastener system for attaching bicycle chainrings to a bicycle crank comprised of a nut and a bolt. Both the nut and bolt consist of shafts with flanges on one end. The nut has threads formed on the interior of its shaft, while the bolt has threads formed on the exterior of its shaft. The nut and bolt can thus be threadedly engaged with each other to clamp the chainrings to the crank. Both the nut and bolt contain tool engagement interfaces formed on the interior of their respective shafts.

Abstract: A seal (21) is constituted by an outer lip portion (22) to be held in abutting engagement with an outer link portion (9) of a crawler belt (7), an inner lip portion (23) to be held in abutting engagement with a bush (11), and an interconnecting bridge portion (24) bridged and connected between the outer and inner lip portions (22, 23). The outer lip portion (22) on the side of track link, the inner lip portion (23) on the side of bush, and outer bridge portion (24A) and inner bridge portion (24B) of the interconnecting bridge portion (24) are formed in thicknesses (T1, T2, T1′ and T2′), respectively, which are in the relations of (T2≈T2′>T1≈T1′). A maximum outside diameter portion (24C) of the interconnecting bridge portion (24) is located radially outward of a median point between inner and outer peripheral ends of the lip portion (23) on the side of bush.

Abstract: The present invention is directed to methods and systems for improving the operation of a transmission for an automotive vehicle, and in particular the transmission as installed by the original automobile manufacturer. The methods and systems of the present invention modify the original hydraulic fluid circuits of the automotive transmission provided by the automobile manufacturer to adjust the feel or firmness of upshifts of the transmission perceived by drivers and occupants of vehicles having the modified transmissions.

Abstract: A continuously variable transmission has a first shaft supporting two first pulleys. The two first pulleys each comprise a fixed disk portion and a moveable disk portion whereby axial movement of the moveable disk portions along the first shaft relative to the fixed disk portions changes an effective diameter of the two first pulleys. An articulating mechanism connects the moveable disk portions. The articulating mechanism has a body that is connected to the moveable disk portions. A second shaft extends generally parallel to the first shaft. Two second pulleys are journaled about the second shaft. The two second pulleys each has a fixed disk portion and a moveable disk portion. The two fixed disk portions are rotationally connected to the second shaft through a differential.

Abstract: A gear-type continuously variable automatic transmission that adjusts ratio in response to load. A pair of planetary gear systems with different static ratio properties combined to produce a dynamic, load responsive rotary transmission utilizing the rings or planet carriers of each planetary system as input and output respectively.

Abstract: A control device for a hybrid vehicle is described which enables preventing a decrease in the efficiency of regeneration even when the revolution rate of an internal combustion engine is decreased during deceleration of the vehicle. The control device for a hybrid vehicle comprises an internal combustion engine and a motor connected in series with respect to each other, a torque converter which is connected to the rotational axis of the motor and which is provided with a lockup clutch, a transmission, a mechanical oil pump producing oil pressure for controllably operating the torque converter and the transmission, a motor-driven oil pump producing oil pressure for controllably operating the lockup clutch, and an ECU. The ECU operates the motor-driven oil pump depending on the deceleration state of the vehicle, and sets the lockup clutch in an engaged state. A method for operating the concerned control device is also described.

Abstract: A motor vehicle drive includes an electric motor and at least one clutch in the drive line between the electric machine and the driven wheels of a motor vehicle. If the special case occurs in which high torques have to be supplied by the electric motor when the vehicle speed is very low or when the vehicle is stationary, the clutch is operated in a torque-transmitting slipping manner, ensuring that neither the electric machine nor the clutch are thermally overloaded.

Abstract: The invention is directed to a method and an arrangement for automatically restarting a drive unit (1) including an internal combustion engine of a motor vehicle. The method and arrangement provides for an automatic restart when there is an unintended stalling of the drive unit (1). In the case of a stalling of the drive unit (1), a check is made as to whether the drive unit (1) was already in a steady-state condition directly before the stalling. Furthermore, a check is made as to whether the stalling of the drive unit (1) took place because of an operator input, especially at an input unit (5). In addition, a check is made as to whether a force-tight connection between the drive unit (1) and a transmission (25 or 80) is present.

Abstract: The present invention relates to an apparatus for preventing sudden acceleration of an automobile fitted with an automatic transmission, including a first slider having one end thereof connected to a cable connected to an accelerator pedal, a second slider having one end thereof connected to a cable connected to a fuel injector and the other end thereof having a hollow into which the first slider is slidably inserted, and a locking device having a locking rod capable of being inserted into an insertion groove formed on the first slider through the second slider, a solenoid clutch for controlling movement of the locking rod by electric current and a locking rod reset spring for elastically supporting the solenoid clutch, and fixed on the second slider.

Abstract: The invention provides an imitation climbing rock that allows children to simulate rock climbing activity. The climbing rock is adapted to be attached to a wall to simulate a natural rock-like structure. The climbing rock includes a mounting surface, a body (e.g., a continuous side wall) and an endless grip that extends outwardly from the entire circumference of the body. The endless grip provides a hand/foot hold for children seeking to grasp the climbing rock as the attempt to negotiate a wall that includes several of the climbing rocks. The endless grip provides a hand/foot hold regardless of a climbing childs position relative to the climbing rock and no matter how the climbing rock is mounted to the climbing wall. The body, or side wall, of the climbing rock preferably includes a mounting portion that forms an edge with the mounting surface and a gripping portion where the endless grip extends outwardly from the gripping portion.

Abstract: A stepping exerciser includes two foot pedals rotatably secured on a base with a shaft, two actuators pivotally coupled between the foot pedals and the base, and a device for adjusting the actuators relative to the shaft, in order to adjust the resistance of the actuators applied onto the foot pedals. The base includes a curved slot formed in a housing for slidably receiving a rod. A block is slidably received in the base and has a channel for receiving the rod. An adjusting bolt is threaded to the block for moving the block and the rod relative to the base.

Abstract: An exercise device includes a frame with a deck cooperating with the frame. The deck and frame cooperate with an endless belt having an upwardly exposed exercise section upon which an exercising user may rest or exercise. An impact absorbing mechanism cooperates with the frame and the deck and is configured to adjustably cushion the impact of a user upon the exercise section of the endless belt. The impact absorbing mechanism includes at least cushioning member and at least one spring at least partially surrounding a portion of the at least one cushioning member, wherein adjustment of the impact absorbing mechanism is achieved by replacing at least one of the at least one cushioning member and the at least one spring with at least one of another cushioning member and another spring.

Abstract: The Invention consists of a raisable platform for stationary bicycles, consisting of a special construction of the platform, of a rectangular general mounting provided with means for anchoring stationary bicycles of every type. This support pivots about its back end and has a forward placed pincers device with motorised opening that allows the raising of the mounting and the bicycle, imitating the different slopes of a trip.

Abstract: An drive assembly for an exercise bike consists of an electrical motor (10), a driven wheel (20), a unidirectional clutch (30), a flywheel (40), a shaft (47) and a crank wheel (50). The shaft (47) penetrates the driven wheel (20), the unidirectional clutch (30) and the flywheel (40). The driven wheel (20) is driven by the electrical motor (10) and then passes on the rotating momentum via the clutch (30), the flywheel (40), the belt wheel and the crank wheel (50) in sequence when the electrical motor (10) is switched on. The exercise bike can rotate in an automatic way to make the ordinary exercise bike into a physical therapy training bike.

Abstract: A rower exerciser includes a frame which is disposed on the floor to serve as a supporting frame, a slide rail connected between front end rear ends of the frame, and a slide seat slidably mounted on the rail to slidably reciprocate along the rail and being adapted for sitting by the user. Two sides of a front end of the slide rail are respectively connected to outwardly extending curved arm frames. Each of the arm frames is connected pivotally to a rocker via a universal connector. The rocker and a respective one of the arm frames are connected pivotally to a hydraulic rod via a pivot seat. By adjusting the foot pedals and the slide seat to be in a fixed mode or a slidable mode, and by virtue of the universal connector and the pivot seat, the rockers can rotatably swing to enable the user to simulate actual rowing actions and to provide various exercising effects.

Abstract: A body weight support system that monitors and controls the level of support force within a stepcycle to result in normative center of mass movement and ground reaction forces. The system comprises a harness connected to a lift line which in turn is connected to a means for advancing and retracting the lift line. A control system is configured to monitor load on the cable and to regulate lift line advancement and retraction in response to load information. The support system can be combined with a treadmill for locomotor training of a subject.

Abstract: An exercise apparatus includes a vertical stack of weights, including a top plate, and at least one additional weight disposed adjacent the top plate. The additional weight may be a plate having a height, a width, and a thickness that is smaller than the width and smaller than the height, and arranged so that its thickness extends horizontally toward the stack of weights, and/or multiple additional weights may be arranged to define a horizontal array on at least one side of the stack of weights. The additional weight(s) may be movably mounted on the frame for movement along a path defined by interfaces between opposite outer surfaces of the weight(s) and respective guide surfaces on the frame. A selector rod may be movably mounted on the top plate for movement into and out of engagement with one or more of the additional weights, and/or arranged to define a longitudinal axis that extends through all of the additional weights and perpendicular to the stack of weights.

Abstract: A golf swing exerciser uses two lengths of resistance cords or tension elements connected to an exercising handle so that one of the cords extends to an upper resistance region on a back swing side of the exerciser and the other resistance cord extends between upper and lower resistance regions on a back swing side of the exerciser. The cord from the upper resistance region resists downward movement of an exercising handle from a back swing region, and the cord extending between the upper and lower resistance regions resists lateral movement of the handle into a hitting region. The combined resistance of both cords significantly increases as the handle moves into the hitting region.