Wrist exerciser with auxiliary starting force

Details Wrist exerciser with auxiliary starting force Wrist exerciser with auxiliary starting force

A - Human Necessities

63

B

A63B 23/14 (2006.01) A63B 21/22 (2006.01) A63B 23/16 (2006.01)

Patent

CA 2595737

A wrist exerciser includes an upper casing member and a lower casing member that are mounted to each other to enclose a rotor therebetween. The upper casing member has a top opening, which exposes a portion of the rotor. The rotor has opposite sides on which two opposite axles are mounted respectively. The axles are rotatably coupled to an outer ring. The outer ring comprises a resiliency device. The side of the rotor that faces the resiliency device is provided with a movable catching mechanism that is releasably, selectively, and operatively coupled to the resiliency device. Thus, when the rotor is initially rotated or is towed to take a linear movement by being put in contact with a fixture surface, the resiliency device builds up compression spring force, which, when the rotor is released, causes the rotor to rotate in a reversed direction and gaining auxiliary starting power and initial rotation speed. Further, the movable catching mechanism is disengageable from the resiliency device by a centrifugal force acting thereon induced by high speed rotation of the rotor so as to allow for regular operation of the wrist exerciser.

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