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. Neighboring 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 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 with a selectable number of weight disks includes a handle with projectable pins in opposing directions, with end surfaces, a base assembly for accommodating two sets of weight disks standing upright, the weight disks having central openings. The projection lengths of the pins are stepwise selectable by an indexing device in order thereby to permit selection of the number of weight disks supported on the handle. Neighboring weight disks and the handle have mutually engaging connecting arrangements which axially interconnect the weight disks and the handle but which permit radial separation. In order to prevent the set projection lengths of the pins from being unintentionally altered, when a dumbbell lifted up out of the base assembly is used, the handle has a locking arrangement which locks the pins in the set projection positions.

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: A dumbbell has an optional number of weight discs which stand on end in a stand, and a handle with anchorages. The anchorages and the weight discs have connecting structures which, in the axial direction, interconnect the anchorages with a neighboring weigh disc or neighboring weight discs, respectively. On the other hand, the connecting structures permit movement transversely of the axial direction. The weight discs display locking structures, which, in the activated state in directions transversely of the axial direction, prevent mutual movements between the weight discs and the anchorages. The locking structures have locking bodies which are movable so that their directions of movement have an axial component and which are disposed at the peripheral regions of the weight discs, and also are insertable in corresponding recesses in a neighboring weight disc or an anchorage. The locking bodies are operable by an operating arrangement located inside the peripheral contour of the weight discs.

Abstract: A device for detecting power for exercise equipment has a wheel driven by a person exercising, a speedometer for determining the speed of rotation of the wheel and a brake jaw supported by a mounting device and applicable against the wheel. The mounting device is connected to the frame of the exercise equipment and has a moving part which supports the brake jaw and which, under the action of the braking force, is applicable against a resilient shoulder. The shoulder has a strain gauge for measuring elastic deformations in the shoulder and thereby also indirectly the size of the braking force.

Abstract: A dumbbell has an optional number of weight discs which stand on end in a stand, and a handle with anchorages. The anchorages and the weight discs have connecting structures which, in the axial direction, interconnect the anchorages with a neighboring weigh disc or neighboring weight discs, respectively. On the other hand, the connecting structures permit movement transversely of the axial direction. The weight discs display locking structures, which, in the activated state in directions transversely of the axial direction, prevent mutual movements between the weight discs and the anchorages. The locking structures have locking bodies which are movable so that their directions of movement have an axial component and which are disposed at the peripheral regions of the weight discs, and also are insertable in corresponding recesses in a neighboring weight disc or an anchorage. The locking bodies are operable by an operating arrangement located inside the peripheral contour of the weight discs.

Abstract: A device for detecting power for exercise equipment has a wheel driven by a person exercising, a speedometer for determining the speed of rotation of the wheel and a brake jaw supported by a mounting device and applicable against the wheel. The mounting device is connected to the frame of the exercise equipment and has a moving part which supports the brake jaw and which, under the action of the braking force, is applicable against a resilient shoulder. The shoulder has a strain gauge for measuring elastic deformations in the shoulder and thereby also indirectly the size of the braking force.

Abstract: A dumbbell with a selectable number of weight disks includes a handle with projectable pins in opposing directions, with end surfaces, a base assembly for accommodating two sets of weight disks standing upright, the weight disks having central openings. The projection lengths of the pins are stepwise selectable by an indexing device in order thereby to permit selection of the number of weight disks supported on the handle. Neighboring weight disks and the handle have mutually engaging connecting arrangements which axially interconnect the weight disks and the handle but which permit radial separation. In order to prevent the set projection lengths of the pins from being unintentionally altered, when a dumbbell lifted up out of the base assembly is used, the handle has a locking arrangement which locks the pins in the set projection positions.

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 on edge and provided with openings. The projection lengths of the pins are stepwise selectable in order to permit selection of the number of weight disks supported on the handle. Neighbouring weight disks have mutually engaging connecting arrangements which axially interconnect the weight disks but which permit radial separation. The weight disks are planar with a circular, unbroken peripheral edge and with the openings located centrally. All connecting arrangements have a longitudinal centre line which coincides with a diameter line for the weight disks and with the permitted radial displacement direction between two neighbouring weight disks.

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.