# US 7,744,549 B2 · Massage device

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- Number: US 7,744,549 B2
- Document ID: US7744549B2
- Status: Granted
- Kind: B2
- Application number: 11/625,267
- Filed: 2007-01-19
- Published: 2007-05-24
- Granted: 2010-06-29
- Earliest claimed: 2004-05-11
- Assignees: Chichun Wu
- Inventors: Chichun Wu; Chi-Wu Chiang
- Web page: https://patentgrep.com/patent/US7744549B2

## CPC

- A61H 15/00: Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains
- A61H 15/0078: {power-driven}
- A61H 2015/0042: {Balls or spheres}
- A61H 2015/005: {multiple on the same axis}
- A61H 2201/0138: incorporated in furniture
- A61H 2201/0149: Seat or chair
- A61H 2201/1669: moving along the body in a reciprocating manner
- A61H 2205/04: neck
- 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)

## Abstract

A massage device includes a base cover having a fix bore defined in its backside; a guiding device disposed in the base cover; and a moving base received in the base cover and movably mounted on the guiding device. The moving base has a securing hole defined therein. The massage device further includes a bolt with a locking portion, and the locking portion is inserted in both the fix bore and the securing hole.

## Claims

### Claim 1

A massage device, comprising:
a base cover having a fix bore defined in its backside;
a guiding device disposed in the base cover;
a moving base received in the base cover and movably mounted on the guiding device, the moving base having a securing hole defined therein;
a bolt with a locking portion, the locking portion being inserted in both the fix bore and the securing hole; and
a power wire with a plug provided at its one end, a receiving hole being defined in the locking portion of the bolt, and the plug being contained in the receiving hole.

### Claim 2 (depends on 1)

The massage device as claimed in claim 1, wherein the bolt comprises a grip ring connected to the locking portion.

### Claim 3

A massage device comprising:
a base cover having a fix bore defined in its backside;
a guiding device disposed in the base cover; and
a moving base received in the base cover and movably mounted on the guiding device, the moving base having a securing hole defined therein;
a bolt with a locking portion, the locking portion being inserted in both the fix bore and the securing hole; and
a limiting ring mounted on the backside of the base cover, a through hole being defined in the limiting ring and aligned with the fix bore of the base cover; and a shield block pivotally mounted on the backside of the base cover, the shield block being able to rotate into a gap defined between the limiting ring and the backside of the base cover, such that the fix bore can be covered by the shield block after the bolt is taken out from the fix bore.

### Claim 4 (depends on 3)

The massage device as claimed in claim 3, wherein the limiting ring includes an annular portion and a plurality of protrusions extended downwardly from the annular portion, and the through hole is defined in the annular portion; wherein a plurality of mounting holes is defined in the backside of the base cover at locations around the fix bore; wherein the protrusions are secured in respective mounting holes.

### Claim 5 (depends on 3)

The massage device as claimed in claim 3, wherein a pivoting shaft is formed on the backside of the base cover; wherein the shield block includes a main body with a pivoting hole defined therein; wherein the pivoting shaft is received in the pivoting hole such that the shield block is rotatable around the pivoting shaft.

### Claim 6 (depends on 5)

The massage device as claimed in claim 5, wherein a spring-receiving hole is defined in the main body of the shield block; wherein a stop post is formed on the backside of the base cover; wherein a spring having a first end and a second end is disposed between the shield block and the pivoting shaft, the first end being inserted in the spring-receiving hole and the second end being pressed against the stop post.

### Claim 7 (depends on 3)

The massage device as claimed in claim 3, wherein the shield block is mounted on the backside of the base cover by a screw.