Balance practicing machine
AssigneeMatsushita Electric Works, Ltd.
InventorsHiroyuki Hojo, Ryusuke Nakanishi
Life of this patent
Estimating the term…
Abstract
A balance practicing machine that offers simplified control, reduced cost, and a compact drive assembly that reduces the space requirement for the machine. The machine includes an output shaft from one side of a power source to impart three movements to the seat in the form of a repetitive linear motion in the longitudinal direction, a repetitive pivoting motion around a longitudinal shaft, and a repetitive pivoting motion around transverse shafts. A seat base is connected to an active frame, through connector links, so as to provide swinging movement of the seat base around transverse shafts. The active frame is connected to a base member so as to allow the repetitive pivoting movement of the active frame around a longitudinal shaft.
Claims15
A balance practicing machine having a seat and a drive assembly that imparts a swinging motion in a longitudinal direction to the seat, said balance practicing machine comprising:
- a seat base attached to the seat;
- a plurality of transverse shafts provided on an active frame;
- a plurality of connector links, each said connector link pivotable on one of said transverse shafts and on said seat base so as to provide swinging motion to said seat base around said transverse shafts;
- a longitudinal shaft provided on a base member and pivotably supporting said active frame so as to provide a pivoting motion to said active frame around said longitudinal shaft;
- an output shaft provided in said drive assembly that extends from one side of a power source;
- and
- a transmission that converts torque from said output shaft into three movements of said seat through said seat base, in the form of a linear motion in a longitudinal direction, a pivoting motion around said transverse shafts, and a pivoting motion around said longitudinal shaft.
A balance practicing machine having a seat that supports an operator, said balance practicing machine comprising:
- a pedestal supporting said seat on top of said pedestal;
- and
- a drive assembly that provides a swinging motion in a first direction to said seat and a pivoting motion in a second transverse direction to said seat;
- wherein said drive assembly is housed substantially within said seat.
A balance practicing machine having a seat and a drive assembly that imparts a swinging motion in a longitudinal direction to the seat, said balance practicing machine comprising:
- a seat base attached to the seat;
- a plurality of transverse shafts provided on an active frame;
- a plurality of connector links, each said connector link pivotable on one of said transverse shafts and on said seat base so as to provide swinging motion to said seat base around said transverse shafts;
- a longitudinal shaft provided on a base member and pivotably supporting said active frame so as to provide a pivoting motion to said active frame around said longitudinal shaft;
- a single power source;
- and
- a transmission that converts torque from said single power source into three movements of said seat through said seat base, in the form of a linear motion in a longitudinal direction, a pivoting motion around said transverse shafts, and a pivoting motion around said longitudinal shaft.
Dependencies are inferred from the claim text.