Patent ID: 6053846
Filing Date: 2000-04-25
Classification: A63B

Abstract:
A wrist exerciser comprising:a lower shell of a semispherical construction and provided therein with a receiving space having an open top whereby said receiving space is intended to accommodate a support ring which is fastened pivotally with a rotary member having in the periphery thereof a trough and an insertion hole; andan upper shell of a hollow semispherical construction and provided in a top thereof with a round opening;wherein said lower shell is provided with two lower protruded plate members extending therefrom symmetrically and having a first through hole whereby said first through hole is provided in a periphery thereof with a plurality of first columnar bodies, each having a through hole;wherein said upper shell is provided with two upper protruded plate members corresponding to said lower protruded plate members and having a second through hole opposite to said first through hole whereby said second through hole is provided in a periphery thereof with a plurality of second columnar bodies, each having a hole of a depth;said upper protruded plate members and said lower protruded plate members being fastened together by a plurality of fastening screws whereby said screws are fastened into said holes of said second columnar bodies via said through holes of said first columnar bodies.