JP3515450B2 - Massage machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine having a pair of rubbing rollers attached to a drive shaft rotated by a motor. 2. Description of the Related Art As a massager having a simple structure mainly used in a home, for example, Japanese Utility Model Laid-Open No. 4-1265.
As disclosed in Japanese Patent Publication No. 30 (A61H15 / 00), a pair of rubbing rollers inclined in opposite directions are attached to a drive shaft rotated by a motor, and a rubbing massage is performed by sandwiching a foot or the like between the rubbing rollers. Such a thing is spreading. [0003] The pair of rubbing rollers are provided with rubber pressing pieces having protrusions at opposing surfaces at appropriate intervals, and rubbing is performed with a foot or the like between the pressing pieces. The projections are projections of the same size, so when pressed and rubbed, they are pressed from the left and right by projections of the same size,
Only a feeling different from the feeling rubbed by hand was obtained. [0004] It is an object of the present invention to provide a massage machine capable of obtaining the same kneading feeling as kneading by hand. According to the present invention, a pair of rubbing rollers are attached to a drive shaft rotated by a motor, and the rubbing roller is a rubbing base that rotates integrally with the drive shaft. And an idler portion rotatably mounted on the outer periphery of the massaging base. On the side facing the other idler portion of the idler portion, two types of elastic projections having different sizes are provided. The ring is arranged alternately along the circumference of the idler , and the larger elasticity
The projection has a trapezoidal shape when viewed from the side of the idler section facing the projection . With this configuration, when the position of the pair of idler portions is adjusted so that the larger elastic projection and the smaller elastic projection face each other when rubbing the foot or the like, the smaller elastic projection can be formed. A large elastic protrusion on the thumb of the hand corresponds to the three fingers of the index finger, the middle finger, the third finger, or the two fingers of the index finger, the middle finger, or the middle finger and the third finger. Can be obtained. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A massage machine according to the present invention will be described with reference to FIGS. 1 is 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 surface. [0008] A motor 6 is provided in the mounting base 3. The motor 6 is fixed to the mounting base 3 by a mounting bracket 8 via a rubber vibration isolator 7. 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 opposed walls of the mounting bases 2, 3. The bearings 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
In FIG. 1, two types of openings 42 and 43 having different sizes are alternately arranged in a ring shape along the periphery of the idling portion, 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
Smaller elastic projections 45 each project inward.
In the embodiment, a large elastic projection 44 and a small elastic projection 45 are provided.
Are provided for each of the six. The outer annular holding plate 20 and the inner annular holding plate 21 are connected by a plurality of screws 46 and 47, and the kneading body 22 is securely held by the two annular holding plates 20 and 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. Then, when the drive shaft 9 rotates, the kneading base 1 is rotated.
7 rotates, but the idling portion 19 moves 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 not parallel to the axis L of the drive shaft 9 and is inclined. 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, it is possible to massage the body to be massaged such as the foot sandwiched between them. At this time, the large and small elastic projections 44 and 45 come into contact with the body to be massaged and are pressed. Here, the size of the elastic projections 44 and 45 (the area to be pressed in contact with the body to be massaged) is such that the smaller elastic projection 45 is attached to the thumb, index finger, middle finger and ring finger of the hand. The size is equal to the average contact area of the thumb when rubbing with three fingers (or the index finger / middle finger or the middle finger / ring finger), and the larger elastic projection 44 is used as the average index finger / middle finger / The size is equal to the contact area of the three ring fingers (or the index finger / middle finger or the middle finger / ring finger). In terms of shape, the larger elastic projection 44
Is the index finger, middle finger, ring finger (or
Like when the middle finger or the middle finger / ring finger)
As shown in FIG. 3, it has a trapezoidal shape when viewed from the facing idler side.
ing. Therefore, when the object to be massaged is sandwiched between the pair of rubbing rollers 16, 16, the position is adjusted so that the large elastic projection 44 and the small elastic projection 45 face each other, and then the object to be massaged is sandwiched. Massage the body with the thumb of the hand and the three fingers of the index, middle, and ring fingers (or the index finger,
The same rubbing feeling as rubbing with the middle finger or the middle finger / ring finger) can be obtained. Even if 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 applied 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 rotary 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 stimulation projections 32 having the same shape, and the other is formed with a large stimulation projection 33 on both sides and a flat stimulation projection 34 therebetween. . For example, there are ten roller shafts 9, and rollers 30 and 3
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 a body to be massaged, such as a foot (rolling massage). Between the pair of rubbing rollers 16 and the rotary roller 25, a coil spring 37 for urging the rubbing rollers 16 in a direction of approaching 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. Thus, when the object to be massaged such as a foot is put between the rubbing rollers 16 and 16 and rubbed, the rubbing roller 16
When the load applied to the elastic member becomes large,
4, 45 are compressed, but when the load further increases,
When the coil spring 37 is compressed, the pair of kneading rollers 1
6, 6 and 16 are evacuated away from each other to prevent excessive pressure from being applied to the foot which is the massaged object. Here, the elastic projections 44 and 45 are hollow inside, for example, inside the elastic projections 44 and 45,
An elastic body made of foamed polyethylene having a hardness smaller than the elasticity of the rubber constituting the rubber 45 may be filled. In this case, the deformation of the elastic projections when an excessive force is applied to the elastic projections 44 and 45 is less likely to occur, and the reliability can be improved. The spacer 40 is provided with two auxiliary rollers 38 which are rotatably provided. 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 rotating roller 2
5 is a cover sheet 35 made of, for example, nylon, which is flexible.
And the body to be massaged is prevented from directly contacting both rollers 16 and 25 to improve safety. Also the first
A large number of ribs 36 are formed on the outer periphery of the base 27 to prevent the cover sheet 35 from being rolled up during massage. According to the present invention, two types of elastic projections having different sizes are alternately provided around the free running portion on the side of the free running portion facing the other free running portion. When the feet and the like are rubbed, the position of the pair of idlers is adjusted so that the larger elastic projection and the smaller elastic projection face each other. The protrusion corresponds to the thumb of the hand, and the large elastic protrusion corresponds to the three fingers of the index finger, the middle finger, and the third finger, or the two fingers of the index finger, the middle finger, or the middle finger and the third finger. You can get a massage with the same excellent feeling as massaging by hand.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan sectional view of a massage machine of the present invention. FIG. 2 is a sectional view based on the line AA of FIG. 1; 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 a BOCDE line of FIG. 3; [Description of Signs] 6 Motor 9 Drive shaft 16 Kneading roller 17 Kneading base 19 Idling part 44 Elastic projection 45 Elastic projection

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2000-51308 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61H 15/00

Claims (1)

(57) [Claims 1] In a device in which a pair of rubbing rollers are attached to a drive shaft rotated by a motor, the rubbing roller includes a rubbing base that rotates integrally with the drive shaft, It consists of a free running part rotatably mounted on the outer circumference of the kneading base. On the side facing the other free running part of the free running part, two types of elastic projections having different sizes are alternately formed. It is arranged annularly along the circumference of the idler, and the shape of the larger elastic projection is
A massage machine that has a trapezoidal shape when viewed from the side of the idler that faces .