Surgery: kinesitherapy – Kinesitherapy – Device with applicator having specific movement
Patent
1994-12-19
1995-11-07
Hafer, Robert A.
Surgery: kinesitherapy
Kinesitherapy
Device with applicator having specific movement
601 24, 601108, 601116, A61H 700
Patent
active
054643821
ABSTRACT:
A variable massage drive unit includes a rotatable drive shaft disposed uprightly in a hollow casing and having two end portions that extend out of the hollow casing, upper and lower bearings for mounting rotatably the end portions of the drive shaft to the hollow casing, first and second drive gears disposed coaxially on the drive shaft, and first and second one-way clutches provided coaxially on the drive shaft between the drive shaft and a respective one of the drive gears. The drive gears are provided on a respective one of the end portions of the drive shaft between an intermediate portion of the drive shaft and an adjacent one of the upper and lower bearings. First and second thrust bearings are disposed coaxially and respectively on the drive shaft between the intermediate portion of the drive shaft and the first one-way clutch, and between the first one-way clutch and the upper bearing.
REFERENCES:
patent: 4327713 (1982-05-01), Okazaki et al.
patent: 4422448 (1983-12-01), Sugai
patent: 4574786 (1986-03-01), Hashimoto
patent: 4615336 (1986-10-01), Fijimoto
patent: 4718408 (1988-01-01), Barreiro
patent: 5052376 (1991-10-01), Yamasaki
Hafer Robert A.
Kenealy David J.
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