JP2002191660A - Massager - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the durability and reliability of a massager by avoiding deformation of elastic protrusions even if an excessive force is applied to a massaging element during massaging. SOLUTION: A pair of massaging rollers 16 which are mounted to a driveshaft 9 rotated by a motor are each comprised of a massaging base 17 which rotates integrally with the driveshaft, and an idling part 19 rotatably attached to the outer periphery of the massaging base. The idling part is fitted with a massaging element 22 having elastic protrusions 44 and 45 of different sizes which protrude inwards. An elastic body 50 being lower in hardness than the massaging element is packed in each of the elastic protrusions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine having a pair of massaging bodies attached to a drive shaft rotated by a motor.

[0002]

2. Description of the Related Art As a simple-structured massage machine mainly used in homes, for example, Japanese Utility Model Application Laid-Open No. 4-1265.
As disclosed in Japanese Unexamined Patent Publication No. 30 (A61H15 / 00), a pair of massaging bodies inclined in opposite directions are attached to a driving shaft rotated by a motor, and a massaging massage is performed by sandwiching a foot or the like between the massaging bodies. What you do is widespread.

[0003] The pair of massaging bodies have elastic projections on opposing surfaces at appropriate intervals, and are configured to rub with a foot or the like between the elastic projections. Although this massaging body is attached to the resin ring, the space between the elastic projection and the resin ring is hollow, and when an excessive force is applied to the massaging body during the massage, the elastic projection is Deformation easily occurred, and there was a problem in the life and reliability of the product.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a massage machine capable of improving the durability and the reliability of the elastic projection by hardly deforming the elastic projection even when an excessive force is applied to the massaging body. The task is to provide.

[0005]

According to the present invention, a pair of massaging bodies are attached to a driving shaft rotated by a motor, and the massaging portion is sandwiched between the pair of massaging bodies by the rotation of the driving shaft, and the massaging is performed. A plurality of elastic projections are provided on opposing surfaces of the pair of massaging bodies, and the elastic projections are filled with an elastic body having a lower hardness than the massaging bodies.

[0006] With such a configuration, even when an excessive force is applied to the kneaded body during the massage, the elastic projection is hardly deformed,
Durability and reliability can be improved.

Here, the elastic projection is formed integrally with the massaging body, the massaging body is made of rubber, and the elastic body is made of foamed polyethylene.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A massage machine according to the present invention will be described with reference to FIGS. Reference numeral 1 denotes a main body case made of a synthetic resin having a U-shaped planar shape.
It is configured to be divisible. A kneading roller and a rotating roller, which will be described later, are provided between the opposed mounting bases 2 and 3 of the main body case 1. A portion connecting the mounting bases 2 and 3 of the main body case 1 becomes a handle 4. Reference numerals 5 denote legs for installing the main body case on the floor.

In the mounting base 3, a motor 6 is provided. The motor 6 is fixed to the mounting base 3 by the mounting bracket 8 via the rubber 7 for vibration isolation. The driving force of the motor 6 is transmitted to the drive shaft 9 via the reduction gears of the worm 12 and the worm wheel 11. Reference numeral 10 denotes a gear case that houses the reduction gear. The worm wheel 11 has a drive shaft 9
The worm 12 is fixed to the shaft of the motor 6. 13 is a control unit for controlling the motor 6, 14
Indicates a power cord.

The drive shaft 9 is rotatably supported by bearings 15, 15 between opposing walls of the mounting bases 2, 3. The bearings 15, 15 are sandwiched between the upper and lower body cases 1.

At the center of the drive shaft 9, a pair of rubbing rollers 16, 16 inclined in opposite directions are attached. The rubbing roller 16 is fixed in the rotational direction with respect to the drive shaft 9 and can slide in the direction of the axis L.
And an idler 19 rotatably mounted on the outer periphery of the massaging base 17 via a plurality of steel balls 18.

The idler portion 19 is composed of an outer annular pressing plate 20 having sliding surfaces for the steel balls 18, an inner annular pressing plate 21, and a kneading body 22 sandwiched between the two annular pressing plates 20, 21. Be composed. Inner annular holding plate 2
3, two types of openings 42 and 43 having different sizes are alternately arranged in a ring shape as shown in FIG. The massaging body 22 is made of an elastic body such as rubber, and is provided with two types of elastic projections 44 and 45 having different sizes inwardly and inwardly arranged alternately in an annular shape. The elastic projection 44 larger than the large opening 42 provided in the
Respectively project inward. In the embodiment, six large elastic projections 44 and six small elastic projections 45 are provided respectively.

The outer annular holding plate 20 and the inner annular holding plate 21 are connected by a plurality of screws 46, 47, and the kneading body 22 is securely held by the two annular holding plates 20, 21 by this connection. 4 and 5, 48 is
A guide ring for preventing the steel balls 18 from coming into contact with each other.

The space between the large and small elastic projections 44 and 45 and the outer annular pressing plate 20 is not a cavity, but is made of, for example, foamed polyethylene having a hardness smaller than the elasticity of the rubber constituting the elastic projections 44 and 45. The elastic body 50 is filled. In addition, the deformation of the elastic projections when an excessive force is applied to the elastic projections 44 and 45 is less likely to occur than that of a hollow interior.

When the drive shaft 9 rotates, the kneading base 1 is rotated.
7 rotates, but the idling portion 19 is connected to the legs by the idling portions 19 and 19.
When a load is applied, for example, by inserting the steel ball 18 into the gap, the non-rotational state is maintained with the rolling of the hard ball 18, and the sliding surface of the steel ball 18 is inclined not parallel to the axis L of the drive shaft 9. Therefore, the operation of changing the tilt angle with respect to the drive shaft 9 and repeating the operation of moving toward and away from the opposing surface is repeated. Therefore, a massaged part such as a foot sandwiched between them can be sandwiched and massaged. At this time, the large and small elastic projections 44 and 45 come into contact with and press against the massaged site.

Here, the size of the elastic projections 44 and 45 (the area to be pressed in contact with the part to be massaged) is such that the smaller elastic projection 45 is attached to the thumb, index finger, middle finger,
The size of the contact area of the average thumb when rubbing with three fingers of the ring finger (or the index finger / middle finger or the two fingers of the middle finger / ring finger) is set to be equal to the average contact area of the thumb, and the larger elastic projection 44 is replaced with the average index finger / It has a size equivalent to the contact area of the three middle fingers and the third finger (or the two fingers of the index finger and the middle finger or the middle finger and the third finger). Therefore, when the massaged part is sandwiched between the pair of rubbing rollers 16, 16 after adjusting the large elastic protrusion 44 and the small elastic protrusion 45 to face each other when sandwiching the massaged part, the massaged part is Thumb of the hand and three fingers of the index finger, the middle finger, the ring finger (or the index finger,
The same rubbing feeling as rubbing with the middle finger or the middle finger / ring finger can be obtained.

Further, even when the elastic projections 44 and 45 are subjected to a complicated movement such as a change in the rotational speed of the kneading roller 16 or a reverse rotation direction, a torsional force acts on the elastic projections 44 and 45. Since it protrudes from the openings 42 and 43 of the inner annular holding plate 21 and its peripheral edge is held down by the rims of the openings 42 and 43, a good massage can always be performed without peeling.

On the outer side of the pair of rubbing rollers 16, 16 of the drive shaft 9, rotating rollers 25, 25 are attached. The rotation roller 25 is fixed to the drive shaft 9 and has a cylindrical first base 27 having a flange 26 at one end and an open end at the other end, and a disc-shaped first base 27 closing the open end at the other end of the first base 27. And a plurality of roller shafts 29 bridged in parallel with the drive shaft 9 between the flange 26 and the second base 28.
And two types of rollers 30 and 31 rotatably attached to the roller shaft 29. One of them 30
Is formed with two stimulating projections 32 having the same shape, and the other is formed with a large stimulating projection 33 on both sides and a flat stimulating projection 34 therebetween. . The roller shaft 9 has, for example, ten rollers.
1 are alternately mounted.

The rotation of the drive shaft 9 causes the rotation roller 25 to rotate, and the stimulating projections 32, 33, 34 of the rollers 30, 31.
Massages (rolling massage) a massaged site such as a foot.

Between the pair of rubbing rollers 16 and the rotating roller 25, a coil spring 37 that urges the rubbing rollers 16 in a direction to always approach each other is wound in a compressed state. A spacer 40 is fixed to the drive shaft 9 between the pair of kneading rollers 16, 16, and the coil spring 3
7 regulates the approach amount of the pair of rubbing rollers 16, 16 urged.

With this arrangement, when a massaged part such as a foot is inserted between the rubbing rollers 16 and 16 to rub, the rubbing roller 1
When the load applied to the roller 6 increases, the elastic protrusions 44 and 45 are initially compressed. However, when the load further increases, the coil spring 37 is compressed to separate the pair of rubbing rollers 16 and 16 from each other. In order to prevent excessive pressure from being applied to the foot that is the site to be massaged.

Here, when the elastic projections 44 and 45 are compressed, an elastic body 5 having a hardness smaller than that of the elastic projections is provided therein.
Since 0 is filled, even if an excessive force is applied to the elastic projections 44 and 45, deformation is less likely to occur.

The spacer 40 is provided with two auxiliary rollers 38 which are rotatable. This is used, for example, when stimulating the sole while rubbing the foot with the rubbing roller 16.

The above-mentioned kneading rollers 16 and 16 and rotary roller 2
5 is a cover sheet 35 made of, for example, nylon, which is rich in flexibility.
The part to be massaged is directly covered by both rollers 16, 25.
Avoid contact with the safety is improved. A large number of ribs 36 are formed on the outer periphery of the first base 27 to prevent the cover sheet 35 from being rolled up during massage.

[0025]

According to the present invention, since the elastic body having a smaller hardness than the massaging body is filled in the elastic projection of the massaging body, the elastic projection is deformed even when an excessive force is applied to the massaging body during the massage. And durability and reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a massage machine of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a side view of the rubbing roller of the present invention as viewed from the inside.

FIG. 4 is a sectional view based on the line BOB of FIG. 3;

FIG. 5 is a cross-sectional view based on the BOCDE line of FIG. 3;

[Explanation of symbols]

 Reference Signs List 6 motor 9 drive shaft 16 kneading roller 22 kneading body 44 elastic projection 45 elastic projection 50 elastic body

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Nakamura 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. F-term (reference) 4C100 AE02 AE03 BB03 BC03 CA02 DA10 EA13

Claims (4)

[Claims] A pair of massaging bodies are attached to a drive shaft rotated by a motor, and a pair of massaging bodies sandwiches and massages a massaged part by rotation of the driving shaft, wherein the pair of massaging bodies oppose each other. A massage machine in which a plurality of elastic projections are provided on a surface, and an elastic body having a hardness lower than that of the massaging body is filled in the elastic projections. 2. The massage machine according to claim 1, wherein the elastic projection is formed integrally with the massaging body. 3. The massage machine according to claim 1, wherein the massaging body is made of rubber. 4. The massage machine according to claim 1, wherein the elastic body is made of foamed polyethylene.