# US 10,478,367 B2 · Reclinable therapeutic massage chair

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- Number: US 10,478,367 B2
- Document ID: US10478367B2
- Status: Granted
- Kind: B2
- Application number: 14/750,323
- Filed: 2015-06-25
- Published: 2015-10-15
- Granted: 2019-11-19
- Earliest claimed: 2012-04-03
- Assignees: Ergo-Flex Technologies, LLC
- Applicants: Ergo-Flex Technologies, LLC
- Inventors: J. T. Anderson; Linda C. Anderson
- Web page: https://patentgrep.com/patent/US10478367B2

## CPC

- A61H 1/008: {Apparatus for applying pressure or blows almost perpendicular to the body or limb axis, e.g. chiropractic devices for repositioning vertebrae, correcting deformation}
- A47C 1/024: the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination
- A61H 1/02: Stretching or bending {or torsioning} apparatus for exercising
- A61H 1/0229: {by reducing gravity forces normally applied to the body, e.g. by lifting or hanging the body or part of it (suspension devices for supporting the patient in upright walking or standing position A61H3/008)}
- A61H 1/0244: {Hip (A61H1/0255 takes precedence)}
- A61H 1/0292: {for the spinal column (A61H1/0218 takes precedence)}
- A61H 23/02: with electric or magnetic drive
- A61H 2201/0207: heated
- A61H 2201/1664: linear
- A61H 2201/1669: moving along the body in a reciprocating manner
- A61H 2201/1676: Pivoting
- A61H 2201/5097: wireless
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)
- A47C: CHAIRS; SOFAS; BEDS

## Abstract

A therapeutic massage chair is reclinable between a horizontal and inclined position. The chair includes an upper back support member and a lower support member that is axially movable along a support frame and is also rotatable about an axis which is perpendicular to the plane of the upper back support member. Electric linear actuators are provided to both axially move and oscillate the lower body support member.

## Claims

### Claim 1

A reclinable therapeutic massage chair for use in exercising and strengthening the muscles in the back, redeveloping the muscles in the back, restoring motion to joints and alleviating soreness and stiffness in the joints and muscles of the back comprising:
a floor support assembly,
a chair support frame pivotably attached to the floor support assembly,
a linear actuator extending between the floor support assembly and the chair support frame for moving the chair support frame from an inclined position to a horizontal position,
an upper back support mounted on the chair support frame and
a lower body support member having a lower back support surface, a thigh support surface and a lower leg support surface, said lower body support member being mounted for both reciprocal and oscillating movement in a same plane on the chair support frame,
the thigh support surface forming an obtuse angle with the lower back support surface and the lower leg surface is at an angle with respect to the thigh support surface, wherein the lower back support surface is located in the same plane as the upper back support, the thigh support surface and the lower leg support surface form an angle having an apex, with the apex adapted to be positioned behind a user's knee whereby when the chair is in the horizontal position, the user's thighs will be inclined upwardly toward the apex and the user's lower leg will extend downwardly from the apex.

### Claim 2 (depends on 1)

The reclinable therapeutic massage chair of claim 1 wherein the floor support assembly includes a pair of horizontal frame members, a cross support member extending between the horizontal frame members and a pair of upright posts pivotably supporting the chair support frame.

### Claim 3 (depends on 2)

The reclinable therapeutic massage chair according to claim 2 wherein the floor support assembly includes a second cross support member to which one end of the linear actuator is pivotably attached.

### Claim 4 (depends on 1)

The reclinable therapeutic massage chair as claimed in claim 1 further including a pair of underarm supports mounted on the chair support frame.

### Claim 5 (depends on 1)

The reclinable therapeutic massage chair as claimed in claim 1 further including a carriage member pivotably supporting the lower body support member, said carriage member being mounted on rails that are secured to a stationary frame on the chair support frame, and a second linear extendable actuator extending between the stationary frame and the carriage member.

### Claim 6 (depends on 5)

The reclinable therapeutic massage chair according to claim 5 wherein the carriage member includes a second linear actuator secured thereto having an extension rod that is connected to a support frame for the lower body support member for oscillating the lower body support member about a pivot axis on the carriage member.

### Claim 7 (depends on 1)

The reclinable therapeutic massage chair according to claim 1 wherein the same plane in which the lower body support member reciprocates and oscillates is horizontal plane.