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, respecti
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.
대표청구항▼
1. A dumbbell with an optional number of weight discs comprising a handle with an anchorage disposed at each end,two sets of weight discs standing on edge in a stand with the handle between both sets of weight discs,the handle, with an optional number of weight discs, being liftable out of the stand
1. A dumbbell with an optional number of weight discs comprising a handle with an anchorage disposed at each end,two sets of weight discs standing on edge in a stand with the handle between both sets of weight discs,the handle, with an optional number of weight discs, being liftable out of the stand,connecting means disposed on the anchorages and the weight discs and, in an axial direction of a longitudinal axis of the handle, interconnecting the anchorages with a neighboring weight disc or interconnecting neighboring weight discs, respectively, the connecting means permitting movements transversely of the axial direction, andlocking means which, in an activated state in directions transversely of the axial direction prevents mutual movements between the anchorages and neighboring weight discs and between neighboring weight discs, respectively, wherein the locking means comprises locking bodies which are movable so that their directions of movement contain an axial component of movement, and which are insertable in corresponding recesses on a neighboring weight disc or a neighboring anchorage, the locking bodies being operable under the action of operating means which are located inside a peripheral contour of the weight discs and the anchorages. 2. The dumbbell as claimed in claim 1, wherein the directions of movement of the locking bodies are axial. 3. The dumbbell as claimed in claim 1, wherein the directions of movement of the locking bodies make an angle α with a plane of extent of the neighboring weight disc or the neighboring anchorage. 4. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed at peripheral regions of the weight discs. 5. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed in accommodation spaces in the weight discs, while the anchorages have only recesses. 6. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed in accommodation spaces in the anchorages and in the weight discs. 7. The dumbbell as claimed in claim 1, wherein operating means are disposed on the locking bodies and exposed in recesses which are open towards peripheries of the weight discs and where applicable anchorages; and that a number of actuating means are disposed on a shaft rotatably journalled in the stand, the actuating means having cam surfaces with thread-like pitch in order, on rotation, to axially act on the operating means. 8. The dumbbell as claimed in claim 7, wherein the cam surfaces are offset in the direction of rotation of the shaft, whereby, on rotation of the shaft, the locking bodies are acted on two by two in sequence after one another. 9. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed in the center of the weight discs. 10. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed in accommodation spaces in the weight discs, while the anchorages only have recesses. 11. The dumbbell as claimed in claim 1, wherein the locking bodies are disposed in accommodation spaces on the anchorages and in the weight discs. 12. The dumbbell as claimed in claim 1, wherein transmission members extend between the locking bodies and the peripheral regions of the weight discs, where the transmission members are exposed in recesses which are open to peripheries of the weight discs and where applicable the anchorages. 13. The dumbbell as claimed in claim 12, wherein radial outer ends of the transmission members are actuable by a sliding body which is movable in a peripheral direction of the weight discs or the anchorages. 14. The dumbbell as claimed in claim 1, wherein weight discs including the connecting means and the locking means are identical. 15. The dumbbell as claimed in claim 1, wherein the stand is of adjustable length for accommodating a number of weight discs adapted to an adjusted length of the stand. 16. A dumbbell with an optional number of weight discs comprising a handle with an anchorage disposed at each end,two sets of weight discs standing on edge in a stand with the handle between both sets of weight discs,the handle, with an optional number of weight discs, being liftable out of the stand,connecting means disposed on the anchorages and the weight discs and, in an axial direction, interconnecting the anchorages with a neighboring weight disc or interconnecting neighboring weight discs, respectively, the connecting means permitting movements transversely of the axial direction, andlocking means which, in an activated state in directions transversely of the axial direction prevents mutual movements between the anchorages and neighboring weight discs and between neighboring weight discs, respectively, wherein the locking means comprises locking bodies which are movable so that their directions of movement contain an axial component of movement, and which are insertable in corresponding recesses on a neighboring weight disc or a neighboring anchorage, the locking bodies being operable under the action of operating means which are located inside a peripheral contour of the weight discs and the anchorages, wherein the locking bodies comprise grooves which are obliquely directed in relation to circumferential directions of the weight discs and the anchorages and the operating means comprises sliding bodies which are accommodated in circumferentially directed recesses in peripheral edges of the weight discs and which are in engagement in the grooves, whereby a circumferentially directed movement of an operating device results in a substantially axial movement of the associated locking body.
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이 특허에 인용된 특허 (4)
Hald Patrick J. ; Dalebout William T. ; Miller F. Troy, Adjustable dumbbell and system.
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