Grip exercise with a gear-shaped adjusting member

Details Grip exercise with a gear-shaped adjusting member Grip exercise with a gear-shaped adjusting member

1997-06-17

1998-11-10

Apley, Richard J.

Exercise devices

Hand, wrist, or finger

Grip

482126, 482127, A63B 2316

Patent

active

058335803

ABSTRACT:
An improved grip exerciser has a grip frame having a pair of handles and a receiving head disposed at the intersection of the two handles, and a gear-like adjusting member housed in the receiving head. The receiving head has a central hole and an axial split at the bottommost area and two axially extended protrusions each having a triangular cross section and disposed adjacent the split symmetrically. Each protrusion has a retaining cavity on its inner face respectively. Each dentiform rib of the adjusting member has a pair of retaining projections at the middle thereof. The receiving head has an upper area above the two symmetrical triangular protrusions which has a larger diameter than that of a lower area defined between the protrusions so as to permit the adjusting member to shift slightly when the grip exerciser is subject to force. The adjusting member has a through hole having multilateral curved sides. The pitch between two dentations of the gear-like adjusting member is a constant. The thickness between the bottom of a valley defined by two dentations and the multilateral curved side of the through hole is varied continuously from thick to thin clockwisely so that the adjusting member can be removed and adjusted with ease for different people.

REFERENCES:
patent: 5072927 (1991-12-01), Santos
patent: 5222926 (1993-06-01), Gugen
patent: 5360385 (1994-11-01), Wang
patent: 5529551 (1996-06-01), Chin

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