Surgery: kinesitherapy – Kinesitherapy – Device with applicator having specific movement
Reexamination Certificate
1999-06-14
2001-01-16
Yu, Justine R. (Department: 3764)
Surgery: kinesitherapy
Kinesitherapy
Device with applicator having specific movement
C601S112000, C601S154000, C601S159000, C004S606000
Reexamination Certificate
active
06174296
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an automatic back rubbing assembly. More particularly, the present invention relates to an automatic back rubbing assembly which can rub a back of a user automatically.
It is difficult to rub a back with two hands. Most old people cannot lift their hands to reach their backs. Therefore, the backs of the old people cannot be rubbed and cleaned.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an automatic back rubbing assembly which can rub a back of a user upward and downward.
Another object of the present invention is to provide an automatic back rubbing assembly which has an adjustment device to adjust a height of a seating panel.
Accordingly, an automatic back rubbing assembly comprises a hollow casing, a water control unit, a bubble producer, an elevator drive mechanism, an elevator box, a back rubbing drive mechanism, and a rubbing device. The bubble producer is disposed in the hollow casing. The water control unit is disposed in the hollow casing. The water control unit has a liquid soap tank, a joint connected to a bubble producing device, a first valve, and a second valve, a first connection pipe connected to the liquid soap tank and the first valve, a second connection pipe connected to the second valve and a third valve, a water outlet tube connected to the third valve, a third connection pipe connected to the third valve and a fourth valve, and a water outlet pipe connected to the fourth valve and a shower nozzle. An water inlet pipe is connected to the third valve. The water outlet tube has a water outlet. The bubble producer has a positioning seat disposed in a lower interior of the hollow casing, a slot formed on a top portion of the positioning seat, a first motor disposed on the positioning seat, an outer box disposed in the positioning seat, an inner box enclosed by the outer box, a positioning plate disposed in the positioning seat, an eccentric wheel disposed between the positioning seat and the inner box, and a ratchet disposed in the inner box. The first motor has a first shaft inserted through the eccentric wheel and the ratchet. The positioning plate has a recess receiving the eccentric wheel, and two oblong grooves. The outer box has two oblong holes matching the oblong grooves, an upper flange having a through hole receiving the joint, and four slide grooves. The inner box has four slide rails inserted in the slide grooves, a rectangular groove, a through aperture matching the through hole, and a liquid outlet. A cover plate engages with the outer box. The elevator box is disposed on a bottom of the hollow casing. A base seat is disposed in a rear portion of the elevator box. A main seat is disposed in a front portion of the elevator box. The main seat has a hollow housing, and two circular holes receiving a first threaded sleeve and a second threaded sleeve. The hollow housing has a center hole, two inner grooves, and a hollow chamber. A cover panel covers the main seat. The cover panel has an opening receiving an annular seat. Two longitudinal posts pass through the rear portion of the elevator box. An upper end of each longitudinal post is inserted in a bottom of the hollow casing. A first hollow screw rod is inserted through the first threaded sleeve. A first longitudinal pivot is inserted through the first hollow screw rod. The first hollow screw rod has a first outer thread. The first threaded sleeve has a first inner thread. The first outer thread engages with the first inner thread. A second hollow screw rod is inserted through the second threaded sleeve. A second longitudinal pivot is inserted through the second hollow screw rod. The second hollow screw rod has a second outer thread. The second threaded sleeve has a second inner thread. The second outer thread engages with the second inner thread. An upper end of the first longitudinal pivot is inserted in the bottom of the hollow casing. An upper end of the second longitudinal pivot is inserted in the bottom of the hollow casing. The elevator drive mechanism drives the elevator box to move upward and downward. The elevator drive mechanism has the first longitudinal pivot, a second motor having a second shaft inserted in a first drive gear, a first follower gear engaging with the first drive gear, a first driven gear engaging with the first follower gear, and the first driven gear disposed on a top end of the first longitudinal pivot. The back rubbing drive mechanism drives the rubbing device to rotate. The back rubbing drive mechanism has the second longitudinal pivot, a third motor having a third shaft inserted in a second drive gear, a second follower gear engaging with the second drive gear, a second driven gear engaging with the second follower gear, and the second driven gear disposed on a top end of the second longitudinal pivot. The rubbing device is disposed in the elevator box. The rubbing device has two driven pinions, two gear wheels engaging with the second hollow screw rod, two follower shafts connected to the respective driven pinion and the respective gear wheel, two positioning racks disposed on the base seat to support the follower shafts, a rotor device having a threaded portion inserted through the center hole of the hollow housing, a catch ring, two catch blocks, two compression springs, and a push device. The catch ring, the catch blocks, the compression springs, and the push device are disposed in the hollow chamber. The push device is clamped by the catch blocks. Each catch block has an insertion groove. An annular seat is disposed on the rotor device. A foamed pad is inserted in the annular seat. The threaded portion of the rotor device engages with the respective driven pinion.
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patent: 2730737 (1956-01-01), Herman
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patent: 3380080 (1968-04-01), Farrell
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patent: 3768462 (1973-10-01), Boulard
patent: 3875604 (1975-04-01), Wurn et al.
patent: 4040132 (1977-08-01), Braun
patent: 4356583 (1982-11-01), Wallasch et al.
patent: 4526163 (1985-07-01), Fedders
patent: 4633857 (1987-01-01), Czeczerski
patent: 4817227 (1989-04-01), Scott
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