Low noise wrist strength training ball
AssigneeNano-Second Technology Co., Ltd.
InventorPei-Sung CHUANG
Life of this patent
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Abstract
A low noise wrist strength training ball includes a case, a sleeve ring, a rotary body and a magnetic element. The sleeve ring is slidably disposed inside the case and is adapted for sliding relative to the case. The rotary body includes two protruding shafts opposite to each other. The two protruding shafts are pivotally connected to the sleeve ring and are adapted for rotating relative to the sleeve ring. The magnetic element is disposed in the sleeve ring and corresponds to one of the two protruding shafts. The magnetic element is adapted for magnetically attracting the one of the protruding shafts to press against the sleeve ring.
Claims13
A low noise wrist strength training ball, comprising:
- a case;
- a sleeve ring slidably disposed inside the case and adapted for sliding relative to the case;
- a rotary body comprising two protruding shafts opposite to each other, the two protruding shafts being pivotally connected to the sleeve ring and adapted for rotating relative to the sleeve ring;
- and
- a magnetic element disposed in the sleeve ring and being corresponding to one of the two protruding shafts, and wherein the magnetic element is adapted for magnetically attracting the one of the protruding shafts to press against the sleeve ring.
A low noise wrist strength training ball, comprising:
- a case;
- a sleeve ring slidably disposed inside the case and sliding relative to the case;
- a rotary body comprising two protruding shafts opposite to each other, the two protruding shafts being pivotally connected to the sleeve ring and adapted for rotating relative to the sleeve ring;
- and
- a shock damping component disposed on the sleeve ring and being corresponding to one of the two protruding shafts, and the shock damping component being pressed against the one of the protruding shafts.
A low noise wrist strength training ball, comprising:
- a case comprising a first case portion, a second case portion, a first concave portion and a second concave portion, the first concave portion and the second concave portion being disposed on the circumference of the first case portion and the circumference of the second case portion, respectively, the second case portion being installed on the first case portion for forming an accommodating space together, the first concave portion and the second concave portion forming an annular groove together, the annular groove having a contact surface, each of the first concave portion and the second concave portion having an inner surface and an outer surface opposite to each other, and the contact surface being connected to the inner surfaces;
- a sleeve ring slidably disposed inside the annular groove and adapted for sliding relative to the case;
- and
- a rotary body comprising two protruding shafts opposite to each other, the two protruding shafts being pivotally connected to the sleeve ring and adapted for rotating relative to the sleeve ring, the two protruding shafts being respectively attached on the contact surface, and ends of the two protruding shafts being disposed between the inner surfaces and the outer surfaces respectively.
Dependencies are inferred from the claim text.