Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: An adjustable kettlebell includes a cradle safety mechanism and a kettlebell safety mechanism. The cradle safety mechanism includes a position sensor that detects whether the kettlebell is in the cradled position and prevents a motor from rotating to change the weight of the kettlebell if the kettlebell is in the uncradled position. The kettlebell safety mechanism includes a dial retractable into the handle of the kettlebell. When the dial is retracted into the kettlebell, a selection mechanism cannot be rotated to change a weight of the kettlebell.

Abstract: A dumbbell with a selectable number of weight disks includes a handle with pins projectable in opposing directions, a base assembly for accommodating two sets of weight disks standing upright, and having through-going openings. Neighbouring weight disks have mutually cooperating connecting arrangements which axially interconnect the weight disks but which permit radial separation. The projection lengths of the pins are stepwise selectable in order thereby to permit selection of the number of weight disks carried on the handle. The handle has, in opposing ends, connecting arrangements for interconnecting with the connecting arrangements of the innermost weight disks in the base assembly. Further, the space between the connecting arrangements of the handle is free through 360° about the handle throughout its entire length, the openings of the weight disks being centrally located.

Abstract: A dumbbell apparatus which is adapted with a series of weight plates, the number of which can be safely and reliably adjusted with a single simple motion. The apparatus comprises a cradle for storing and deploying the apparatus, weight plates, and a handle apparatus which has two spline bolts which support the weight plates and are used to simultaneously be adjusted by means of an adjusting pin which moves the spline members together through a motion transmitting gear. The apparatus may be further enhance with permanent weights and gripping options.

Abstract: The present application relates to a weight-adjustable dumbbell, which includes a holding rod assembly, a handle tube, a hanging mechanism, a gear fixing mechanism, and a counterweight assembly connected to the holding rod assembly and including at least one dumbbell plate. The handle tube is rotatably installed, and the hanging mechanism is connected to the handle tube and rotated synchronously with the handle tube. The hanging mechanism is defined with a plurality of gear positions rotating relative to the counterweight assembly under a drive of the handle tube, and configured to connect to at least one dumbbell plate when the hanging mechanism is rotated to one of the gear positions. The gear fixing mechanism is connected to the hanging mechanism and rotated synchronously with the hanging mechanism, and the gear fixing mechanism keeps the hanging mechanism having a movement tendency of rotating toward one of the gear positions.

Abstract: An adjustable dumbbell system may include a base, two or more weights, a handle assembly, an additional weight, and selection assembly. The two or more weights may be supported by the base and grouped into a first set of weights associated with one end of the dumbbell system and a second set of weights associated with an opposing end of the dumbbell system. The handle assembly may be selectively fixedly joined to the first and second set of weights. The additional weight may be disposed distally of the handle assembly. The selection assembly may be secured to the additional weight. The selection assembly may include a selection member that may be linearly moveable between a selected position where the additional weight is operatively secured to the handle assembly and an unselected position where the additional weight is disengaged from the handle assembly.

Abstract: A weight adjustable dumbbell includes a handle and a first counterweight part and a second counterweight part respectively arranged at two ends of the handle. Each of the first counterweight part and the second counterweight part includes a plurality of dumbbell pieces. Each dumbbell piece includes a mounting hole. The weight adjustable dumbbell further includes an adjusting mechanism. The adjusting mechanism includes a rotating mechanism, a transmission shaft, a first transmission sleeve and a second transmission sleeve. The transmission shaft can drive the first transmission sleeve and the second transmission sleeve to move axially along the transmission shaft and cause distal ends of the first transmission sleeve and the second transmission sleeve to insert into or leave the mounting holes of portion or all of the dumbbell pieces, whereby the dumbbell pieces are fixed on or detached from the first counterweight part and the second counterweight part.

Abstract: An adjustable dumbbell device includes one or more weight members and one or more weight elements each having two side panels to form a chamber, and an opening formed in each of the panels, two housings detachably engaged in the weight member and the weight element, two catches slidably engaged in each of the housings and engageable with the openings of the panels for anchoring the housings to the weight member and the weight element selectively, two followers are rotatably engaged in each of the housings and each include a gear engaged with the catches for moving the catches to engage with the panels and to anchor the housings to the weight member and the weight element respectively.

Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: An adjustable dumbbell includes weight plates that are selectively connectable to a handle. Unselected weight plates are secured to a cradle. To secure the unselected weight plates to the cradle, a latch in the cradle is inserted into an engagement surface notch in the weight plate. The unselected weight plates are individually actuated based on which weight plates are selected and connected to the handle.

Abstract: An adjustable weight kettlebell includes a body defining an internal cavity configured to receive one or more of a plurality of weights, and a weight selector assembly configured to selectively couple one or more of the plurality of weights to the body. The weight selector assembly may include an actuator to enable a user to select one of a plurality of available weight settings. The weight selector assembly may be locked for adjustment when the kettlebell is removed from a support surface such as a base, thereby inhibiting inadvertent detachment of the weights from the kettlebell during exercise. The weight selector assembly may automatically shift to the closest weight settings upon release of the actuator and may automatically unlock upon placement of the kettlebell on the support surface such as the base, the bottom weight if not coupled to the kettlebell, or any other suitable support surface.

Abstract: The present invention discloses a weight adjustable dumbbell, which includes a dumbbell assembly, a dumbbell seat and a plurality of dumbbell pieces placed on two sides of the dumbbell seat, wherein the dumbbell assembly includes a handle tube, tailstock assemblies provided on two sides of the handle tube, a fixed shaft provided throughout inside the handle tube and the tailstock assembly and two telescopic tubes symmetrically sleeved outside the fixed shaft, wherein the handle tube is rotatably connected between the two tailstock assemblies, the handle tube is a hollow tube pieces, with an inner wall thereof being provided with two guide grooves with opposite screw directions, one end of the telescopic tube close to the center of the handle tube is provided with a guide block, and the other end thereof is symmetrically provided with an anti-rotation block , the tailstock assembly includes a tailstock body.

Abstract: A weight adjustable dumbbell, which includes a dumbbell bar assembly, a dumbbell base and a plurality of dumbbell plates placed on two sides of the dumbbell base. The dumbbell bar assembly includes a plurality of synchronously rotatable hanging plates arranged adjacently, an end of each of the hanging plates is provided with an extruded hanging block. An end of each of the dumbbell plates is defined with a U-shaped groove where the hanging block is radially slidable, a bump is provided in the U-shaped groove, and the bump and a wall of the U-shaped groove define a limiting area therebetween, the hanging block can slide into the limiting area and be latched with the bump during the hanging block rotating in the U-shaped groove.

Abstract: A set of dumbbells comprises a plurality of dumbbells of different weights with the dumbbells having a common length. A plurality of adder weights is provided with each adder weight having a cavity that is sized to receive the common length of any one of the dumbbells. Any one of the dumbbells is dropped down into the cavity of any one of the adder weights. A slide retainer is then slid into a slideway on the any one adder weight to overlie the dumbbell and secure the dumbbell to the any one adder weight. The slide retainer has a window therein to allow a user to reach through the slide retainer and grip a hand grip of the dumbbell.

Abstract: An adjustable dumbbell system may include a base, two or more weights, a handle assembly, an additional weight, and selection assembly. The two or more weights may be supported by the base and grouped into a first set of weights associated with one end of the dumbbell system and a second set of weights associated with an opposing end of the dumbbell system. The handle assembly may be selectively fixedly joined to the first and second set of weights. The additional weight may be disposed distally of the handle assembly. The selection assembly may be secured to the additional weight. The selection assembly may include a selection member that may be linearly moveable between a selected position where the additional weight is operatively secured to the handle assembly and an unselected position where the additional weight is disengaged from the handle assembly.

Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: An adjustable weight kettlebell includes a body defining an internal cavity configured to receive one or more of a plurality of weights, and a weight selector assembly configured to selectively couple one or more of the plurality of weights to the body. The weight selector assembly may include an actuator to enable a user to select one of a plurality of available weight settings. The weight selector assembly may be locked for adjustment when the kettlebell is removed from a support surface such as a base, thereby inhibiting inadvertent detachment of the weights from the kettlebell during exercise. The weight selector assembly may automatically shift to the closest weight settings upon release of the actuator and may automatically unlock upon placement of the kettlebell on the support surface such as the base, the bottom weight if not coupled to the kettlebell, or any other suitable support surface.

Abstract: A weight modification clamp includes first and second hingedly connected plates configured to be coupled to a bar of a weight-lifting device, such as a dumbbell, barbell or a kettlebell. First end portions of the first and second plates are pivotably connected and movable about a rotational axis so that opposing second end portions of the first and second plates are movable between a closed orientation and an open orientation and along a plane substantially perpendicular to the rotational axis. The first and second plates define a central opening configured to receive and retain the bar therein.

Abstract: An adjustable weight dumbbell device includes a nesting tray and a plurality of weight plates with a radial recess and positioned parallel to each other on the nesting tray. A handle with a grip is provided, wherein rotating the grip in a first direction to one of a plurality of predefined positions, after the handle has been inserted through the aligned radial recesses of the weight plates to rest on the nesting tray, results in a set of selected number of weight plates that correspond to the selected predefined position, getting engaged with the handle which results in the selected number of weight plates moving out of the nesting tray along with the handle when the handle is moved away from the nesting tray.

Abstract: A dumbbell has a grip rod and multiple counterweight blocks. The grip rod has two connection segments each having multiple baffles to define multiple connection recesses between the baffles. The counterweight blocks are engaged respectively with the connection recesses. Each counterweight block has a body and a buckle. The body has an engaging channel extending from a center to an edge of the body and being expandable. The engaging channel has an opening and two protrusions to form an engaging space for being mounted around one of the connection segments. The buckle has a first end and a second end. The first end is connected pivotally to the body and at a position on one of two sides of the engaging channel. The second end is connected detachably with the body at a position on the other one of the two sides of the engaging channel.

Abstract: The invention discloses an electronically controlled adjustable dumbbell comprising a handle grip, a weight stack, a base, an end cover, an electronic control system and a weight stack locking structure, wherein the weight stack is located below the handle grip. The invention solves the existing problems of adjustable dumbbells as follows: firstly, the operation is so complicated and cumbersome that it is quite difficult to adjust the weight in one try, and the novice who is new to the adjustable dumbbells cannot quickly adjust the weight plate; secondly, visually the product looks too complicated since the number that needs to be adjusted is printed on the cylindrical surface, and half of the numbers on the handle surface are located below the handle grip, which is difficult to see by the user; thirdly, the lack of modernity and inadequate aesthetics hinders product sales and makes it difficult to make profit quickly.

Abstract: The invention relates to a weightlifting device comprising a longitudinally extending bar, the bar comprising at least one weight bearing section adapted for accommodating one or more free weights comprising an opening adapted for surrounding the weight bearings section. The weight bearing section comprises an end stop for the one or more free weights at a first end of the weight bearing section, a recess at or adjacent to a second opposite end of the weight bearing section and a free weight locking member for locking the free weights and for preventing the free weights from unintentionally falling off from the second end. The free weight locking member is movable in a longitudinal direction of the weight bearing section between the recess and at least one free weight locking position located between the recess and the end stop.

Abstract: An adjustable exercise device includes a dumbbell having one or more weight members attached to a central handle member, and one or more weight elements attachable to the weight members, and a receptacle includes a housing, two casings engageable to the housing for receiving and engaging with the weight members, and one or more spacers detachably attached to the housing and engaged between the housing and the casings for receiving and engaging with the weight elements. The housing includes two anchoring members, and the casings each include an anchoring element for engaging with the anchoring members and for detachably attaching the casings to the housing.

Abstract: The present invention discloses a weight-adjustable dumbbell component with a locking mechanism, comprising a dumbbell component, a dumbbell seat and a plurality of dumbbell pieces placed at two sides of the dumbbell seat. The dumbbell seat comprises a handle component, tailstock components disposed at two sides of the handle component and two sliders movably connected to two ends of the handle component. Rotating the handle component can drive the sliders to move slidably in a rotation stopping groove. By disposing a guiding groove inside a handle tube, a guiding block at one end of one of the sliders is mounted inside the guiding groove and the guiding groove inside the handle tube can pull the one of the sliders to move leftward or rightward.

Abstract: A dumbbell with a selectable number of weight disks includes a handle with pins projectable in opposing directions, a base assembly for accommodating two sets of weight disks standing upright, and having through-going openings. Neighbouring weight disks have mutually cooperating connecting arrangements which axially interconnect the weight disks but which permit radial separation. The projection lengths of the pins are stepwise selectable in order thereby to permit selection of the number of weight disks carried on the handle. The handle has, in opposing ends, connecting arrangements for interconnecting with the connecting arrangements of the innermost weight disks in the base assembly. Further, the space between the connecting arrangements of the handle is free through 360° about the handle throughout its entire length, the openings of the weight disks being centrally located.

Abstract: A selectorized dumbbell includes a horizontal stack of nested left weight plates and a horizontal stack of spaced right weight plates with the stacks being separated by a gap into which a handle may be inserted. A selector is movable into different positions relative to the handle to vary how many nested left and right weight plates from the stacks thereof are coupled to the handle to vary the exercise mass of the handle. Each left weight plate has a counterpart right weight plate counterpart which are coupled together by at least one interconnecting member having a first keyhole slot connection between the left end of the interconnecting member and the left weight plate and a second keyhole slot connection between the right end of the interconnecting member and the right weight plate.

Abstract: A barbell comprises a substantially cylindrical elongated bar having a plurality of connectors located along the length thereof. A generally disk shaped weight plate having a central aperture and a peripheral handle is provided, and the barbell is received within the central aperture. A fastening assembly is formed on the weight plate and extends between the central aperture and the peripheral handle. The fastening assembly is selectively movable between a first position in which it engages with one of the connectors on the barbell, and a second position in which it is disengaged from the connector on the barbell.

Abstract: A weight apparatus includes a bar including a handle rotatably attached to an anchorage. The anchorage includes a body and at least one radially extendable and retractable pin, the pin being movable relative to the body between an innermost position and an outermost position. An end of the pin extends radially beyond an external surface of the body when the pin is in the outermost position. The apparatus further includes a weight including a weight opening in which the anchorage is adapted to be received. The weight includes a radially extending pin opening adapted to receive the pin when the pin is in the outermost position to attach the weight to the anchorage. An arrangement is provided for driving the pin to the outermost position upon rotation of the handle relative to the anchorage.

Abstract: This utility model relates to the field of dumbbells and, in particular, to an adjustable dumbbell comprising knobs, bridge-shaped blocks, weight plates, a lift assembly, side plates, an anti-slip assembly and sleeves. The number of the weight plates is two, and they are fixedly attached to the opposing ends of the lift assembly. The bridge-shaped blocks and the weight plates are fixedly disposed between the lift assembly and the knobs. Separation of sockets from inserting plates concurs with extraction of a securing bar from a second through hole and from a first through hole. The handle may be then pulled to a desired position by virtue of the movement of locking blocks in respective locking grooves.

Abstract: A weight plate with a contained clamp inside a housing formed from features of the weight plate. The clamp is enclosed by the weight plate features and held in place from coming out of the housing using a fastener. Once the clamp is held, the clamp will not rotate on its own axis of rotation inside the housing. This prevents the clamp from being lost and provides easy clamping of the weight plate to a bar.

Abstract: A selectorized dumbbell has a handle that comprises a selector receiver and a hand grip that are separated from one another to allow a weight selector to be installed in the selector receiver. The position of the weight selector in the selector receiver determines how many of a plurality of nested weights are joined to the handle to thereby select the exercise mass of the dumbbell. After the weight selector is so installed, the hand grip is dropped into the selector receiver and is joined thereto by a connector so that the selector receiver and hand grip then act as a unitary handle to permit exercise with the selected number of weights. When so installed, the hand grip telescopically fits into the weight selector to affirmatively prevent the weight selector from inadvertently dislodging.

Abstract: An oscillating device including a vibrating table, an actuator configured to oscillate the vibrating table in a first direction, a coupling mechanism configured to couple the vibrating table with the actuator in such a manner that the vibrating table is movable relative to the actuator in a second direction orthogonal to the first direction, and a counter balancer attached to the vibrating table and configured to compensate an imbalance of an oscillated portion including at least the vibrating table, the imbalance being caused by attaching the coupling mechanism to the vibrating table.

Abstract: A cradle for supporting an adjustable free weight assembly that includes first and second weight plate sets. End walls and side walls of the cradle define a cavity sized to receive the free weight assembly. The end walls engage plate portions and locking element portions of outermost weight plates of the free weight assembly when received in the cradle. Inboard surfaces of the side walls engage portions of weight plates in at least the first weight plate set to substantially inhibit the first weight plate set from moving vertically or laterally between the side walls. The configuration of the inboard surfaces of the side walls aligns the weight plates in the first weight plate set both vertically and horizontally so that central openings in the weight plates for receiving a selector shaft are substantially concentric.

Abstract: A set of dumbbells comprises a plurality of dumbbells of different weights with the dumbbells having a common length. A plurality of adder weights is provided with each adder weight having a cavity that is sized to receive the common length of any one of the dumbbells. Any one of the dumbbells is dropped down into the cavity of any one of the adder weights. A slide retainer is then slid into a slideway on the any one adder weight to overlie the dumbbell and secure the dumbbell to the any one adder weight. The slide retainer has a window therein to allow a user to reach through the slide retainer and grip a hand grip of the dumbbell.

Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: A selectorized dumbbell includes a horizontal stack of nested left weight plates and a horizontal stack of spaced right weight plates with the stacks being separated by a gap into which a handle may be inserted. A selector is movable into different positions relative to the handle to vary how many nested left and right weight plates from the stacks thereof are coupled to the handle to vary the exercise mass of the handle. Each left weight plate has a counterpart right weight plate counterpart which are coupled together by at least one interconnecting member having a first keyhole slot connection between the left end of the interconnecting member and the left weight plate and a second keyhole slot connection between the right end of the interconnecting member and the right weight plate.

Abstract: A novel weight lifting plate is disclosed. The novel weight lifting plate has a large shaped central aperture. The central aperture is shaped to receive the hand of a user. The central aperture has a plurality of ball bearings extending into the central aperture. There are four lateral ball bearings which hold a barbell in the center of the central aperture when the plate is mounted on the barbell. The plate also has two central ball bearings. The central ball bearings are disposed in recesses with springs within the recesses. When the plate is placed on the barbell the barbell pushes the central ball bearings into the recesses. When the user desires to use the plate by hand, the user places their hand in the central aperture with the ball bearings disposed between the user's fingers.

Abstract: An adjustable barbell or dumbbell or exercise device includes a handle device having a handle bar engageable into grooves of a number of weight members, the weight members each having two pivotal arms, a link pivotally connected between the arms, a hand grip disposed on the handle bar, and a number of plates disposed on the handle bar and rotated in concert with the hand grip, the plates are engageable between the weight members, and the plates each include an engaging element for engaging with the link and for moving the arms toward each other to engage with the handle device when the plates and the hand grip are rotated relative to the handle bar, and for anchoring a selected number of weight members to the handle device with the plates.

Abstract: Provided is an exercise lifting bar having at least two hand grips, an integral loading surface for holding optional plate weights coupled to each hand grip, the paired or coupled grips and loading surfaces thereby defining a member; the members further being substantially cylindrical, collinear, and operable to translate relative to one another. Also included is a translation limiter to limit the motion between the members. Methods of assembly of the exercise lifting bar are also provided.

Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: An adjustable dumbbell system having a weight sensor is provided. The adjustable dumbbell system may include a handle assembly, a plurality of weights selectively fixedly connectable to the handle assembly, a sleeve rotatably coupled to the handle assembly, an indexing wheel rotatably coupled to the handle assembly and arranged to rotate with the sleeve, at least one sensor configured to detect the rotational position of the indexing wheel, and a computing device in communication with the at least one sensor. The rotational position of the sleeve may correspond to a different combination of the plurality of weights fixedly connected to the handle assembly. The computing device may be configured to determine the different combination of the plurality of weights fixedly connected to the handle assembly based on the rotational position of the indexing wheel detected by the at least one sensor.

Abstract: An adjustable kettlebell device includes a kettlebell base having a housing formed below a handle, the housing includes a chamber formed by an upper wall and a bottom wall, one or more weight elements each include a tubular member for engaging into the chamber of the housing, and a latch is slidably received in the housing and movable to engage with the tubular members of the weight elements for detachably attaching the tubular member of the weight elements to the kettlebell base. The tubular member includes a channel formed by a rib, and the latch includes a projection for engaging with the channel of the tubular member of the weight elements.

Abstract: A selectable weight set apparatus includes a handle assembly including a handle having a first end portion and a second end portion opposite the first end portion. A first weight set is adapted to be supported on the first end portion of the handle and a second weight set is adapted to be supported on the second end portion of the handle. Each of the first and second weight sets includes a plurality of weight plates. An adjustment assembly selects a number of weight plates to be retained to the handle assembly. The adjustment assembly includes at least one selector for movement relative to at least one of the first and second weight sets to engage and select the weight plates in said at least one of the first and second weight sets. A locking assembly fixes the selector relative to said at least one of the first and second weight sets.

Abstract: A weight apparatus includes a handle, first and second anchorages mounted to first and second ends of the handle, respectively, the handle and the first and second anchorages having an axially extending opening, first and second rods axially movable inside the axially extending opening and adapted to be moved axially relative to the axially extending opening in opposite directions upon rotation of first and second pinion gears in the first and second anchorages, respectively, that engage with first and second racks on the first and second rods, respectively, and a lock having a locked condition in which rotation of the first and second pinion gears is prevented and an unlocked condition in which rotation of the first and second pinion gears is permitted.

Abstract: A barbell collar system which is both easy to connect or disconnect from the barbell and secure enough to maintain weights on a barbell during extreme use. The barbell collar system generally includes a collar which is adapted to easily and quickly be connected to or removed from a barbell to retain a weight on the barbell. The collar is adapted to adjust between a first position in which the collar is curled around the barbell outside of the weight and a second position in which the collar is elongated in a linear orientation. The collar may include a ribbon spring for snapping between the two positions and an outer covering for increasing friction between the collar and the barbell. One or more magnets may be included with the collar to magnetically engage the collar with the barbell or the collar with itself.

Abstract: A dumbbell assembly includes a number of weight members, a handle device engageable with the weight members for anchoring a selected number of the weight members to the handle device, a base support includes a number of socket openings for accommodating the weight members, and a follower is slidably engaged in the base support, and the follower includes one or more catches for selectively engaging with the weight members that are supported on the base support and for selectively retaining the weight members to the base support. A spring biasing member is engaged with the follower for biasing the catches of the follower to engage with the weight members.

Abstract: A selectorized dumbbell has a plurality of nested weights that provide a stack of left weight plates and a stack of right weight plates. A handle is dropped between the stacks and a selector is inserted into one of a plurality of vertically spaced positions on the handle to couple a selected number of the weights to the handle. The selector has a continuous periphery enclosing an open interior. A user who is exercising with the dumbbell will be alerted to unintended dislodgement of the selector since a portion of the selector's periphery will contact a portion of the user's grip hand, wrist or forearm during such dislodgement. This prevents complete dislodgement and prompts the user to restore the selector to a fully installed position. Side walls of the selector may become curved when the selector is installed to provide an additional frictional force resisting dislodgement of the selector.

Abstract: A weight apparatus includes a bar including a handle, an anchorage rotatably mounted to an end of the handle, the handle and the anchorage having an axially extending opening, a pinion gear rotatably mounted in the axially extending opening, a rod slidably disposed inside the axially extending opening and having a rack arranged to be moved axially relative to the axially extending opening upon rotation of the pinion gear, and a gear drive arrangement for rotating the pinion gear upon rotation of the handle relative to the anchorage.

Abstract: A dumbbell assembly includes a cradle. The cradle includes a body, a trough defined in the body and sized to receive a weight of an adjustable dumbbell, an input mechanism incorporated into the body, and a selection mechanism incorporated into the body. The selection mechanism includes a selector that adjusts a connection of the weight with the adjustable dumbbell in response to a command received from the input mechanism.

Abstract: A selectable weight set apparatus includes a handle assembly including a handle having a first end portion and a second end portion opposite the first end portion. A first weight set is adapted to be supported on the first end portion of the handle and a second weight set is adapted to be supported on the second end portion of the handle. Each of the first and second weight sets includes a plurality of weight plates. An adjustment assembly selects a number of weight plates to be retained to the handle assembly. The adjustment assembly includes at least one selector for movement relative to at least one of the first and second weight sets to engage and select the weight plates in said at least one of the first and second weight sets. A locking assembly fixes the selector relative to said at least one of the first and second weight sets.