Wrist exerciser with message display

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide a wrist exerciser having a message display for providing visual attraction to general consumers.
Another object of the present invention is to provide a wrist exerciser having a message display for showing messages and/or patterns.
A further object of the present invention is to provide a wrist exerciser having a message display comprising a number of particularly arranged light-emitting elements for displaying selected messages during the operation of the exerciser.
To achieve the above objects, in accordance with the present invention, there is provided a wrist exerciser comprising a spherical hollow casing having a top opening.
A ring is received within the casing and substantially coincident with a great circle of the casing.
A rotor is rotatably supported in the casing by being rotatably supported by the ring.
The rotor has a circumferential groove defined in an outer surface thereof for receiving a rope wound around the rope.
By manually pulling to unwind the rope through the top opening, the rotor is rotated in the casing.
A number of light emitting diodes (LEDs) are arranged on the outer surface of the rotor in a predetermined fashion.
A power supply device is mounted to the rotor and electrically connected to the LEDs via a microprocessor based control circuit for conducting on/off the LEDs in accordance with operation modes performed by the microprocessor.
By making use of the persistency of human vision, a limited number of the LEDs may display complicated messages, including the rotational speed of the rotor.