Dumbbell

Abstract

An apparatus for applying an optional number of weight disks on a dumbbell includes a base unit, a first and second set of separate weight disks and a handle. The base unit has a first and second group of retainers which support the first and second set of weight disks. On the handle, a selectable number of weight disks are disposed from the first and second set of weight disks. The weight disks have openings which are closed towards the peripheries of the weight disks. The handle has pin devices which are axially projectable in opposing directions for insertion in the openings of the weight disks. The projection of the pin devices out of the handle is selectable for adaptation of the length of the pin device to the number of weight disks that are to be secured on the handle. The pin devices are further lockable with locks, in selected projectional positions in relation to the handle, and have, on their free ends, locks for fixedly retaining the selected number of weight disks.

Description

BACKGROUND AND SUMMARY[0001]The present invention relates to an apparatus for applying an optional number of weight disks on a dumbbell, and comprising a base unit with a first and second group of retainer means which are designed for cooperation with a first and a second set, respectively, of upright weight disks, a first and second set of separate weight disks, the weight disks having openings that are closed towards the periphery of the weight disks and that are disposed substantially along a straight line on the cooperation of the weight disks with the retainer means, a handle with pin devices axially projectable in opposing directions for insertion in the openings of the weight disks, the projection of the pin devices out of the handle being selectable in order thereby to permit the choice of the number of weight disks accommodated on the handle, and locking means by which the pin devices are lockable in selected projectional positions in relation to the handle.[0002]A dumbbell...

AI Technical Summary

Benefits of technology

[0008]It is desirable to design the apparatus intimated by way of introduction so that the drawbacks in the prior art technology are obviated. In particular, it is desirable to design the apparatus so that an optional number of weight disks, i

Problems solved by technology

Naturally, this implies a considerable drawback.

For securing such loose weight disks, use may be made of different fixing means which are typically placed outside the weight disks and are locked in position there, A dumbbell of this type is perceived as impractical, since many different working phases and manual operations are required on mounting or dismounting of the weight disks and securing of the fixing means.

However, there are considerable drawbacks.

One such drawback is the complicated mechanical construction, another is the fact that the weight disks, because of the presence of the radial recesses or grooves, will not have their mass distributed rotationally symmetrically around the handle.

The radial recesses or grooves may possibly also entail a problem in mechanical strength if a heavy dumbbell is dropped on, for example, a concrete floor.

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