JP3108143B2 - Massager - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massager which is used to press a part of a body such as a foot, a waist, a back, etc. to give an appropriate pressing stimulus for medical treatment.

[0002]

2. Description of the Related Art Conventionally, as a massager of this type, for example, a structure disclosed in Japanese Patent Application Laid-Open No. Sho 62-172954 is generally known. This is because a plurality of rollers are installed between a pair of support plates that are driven to rotate around the same axis with their respective surfaces facing each other, substantially equally distributed on a predetermined circumference on these surfaces. It was done.

[0003] A plurality of projections are respectively provided on the peripheral surface of the roller, and when a treatment section such as a foot, a waist, and a back is pressed against the roller to rotate the support plate, each roller is driven. By circling around these erection circles, the circling operation causes the treatment section to be intermittently provided with a pressing stimulus by the convex portion of each roller, thereby promoting predetermined circulation such as promoting blood circulation and muscular loosening. The effect is obtained.

Further, in the massage device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. Sho 62-172954, a variety of pressure stimuli can be given by changing the projections of the respective rollers in various ways. The treatment effect is enhanced.

[0005]

The massager constructed as described above is used by placing it on the floor and pressing its feet, waist or back in a supine or recumbent position, or a chair. It is used in various forms of use, such as leaning against the backrest and pressing against the waist or back while sitting in this chair, and realization of small size and light weight is an important issue. In addition, when treating the lower back or the back in a supine position, it is required to realize a thinner shape in order to avoid forcing the posture to be impossible.

However, in the conventional massage device having the above-described structure, a roller for pressing and stimulating is provided on a predetermined circumference of the pair of support plates, and the size of the circumference is determined by the size of the circumference. Therefore, there is a limit in achieving a reduction in size, particularly a reduction in thickness, and there is a problem in that use in various forms is hindered.

The present invention has been made in view of the above circumstances, and provides a massage device which can be significantly thinner than conventional ones, and which can provide a satisfactory therapeutic effect by a variety of pressing stimuli. The purpose is to do.

[0008]

SUMMARY OF THE INVENTION A massager according to the present invention comprises a plurality of drive shafts which are substantially parallel to each other in one plane, are driven to rotate around respective axes, and extend in the respective axial directions. A plurality of eccentric rollers that are provided side by side and apply a pressure stimulus to the treatment section with the rotation of each drive shaft, and the eccentric rollers on each drive shaft have eccentric directions different from each other. In addition, the eccentric rollers corresponding to the positions in the axial direction on the plurality of drive shafts are also different in eccentric direction from each other.

[0009]

[0010]

In the present invention, the eccentric rollers mounted eccentrically on the respective drive shafts arranged in one plane rotate while moving forward and backward on the plane, and press against the peripheral surfaces of these eccentric rollers. A thin structure is realized by a structure that applies a pressure stimulus to a treatment part such as a foot, a waist, or a back.

Further, in the present invention, the phases in the eccentric direction are made different from each other between the eccentric rollers arranged on each drive shaft, and the eccentric rollers are also arranged between the eccentric rollers located at the corresponding positions on each drive shaft. The phase of the stimulus in each eccentric roller is different in both the axial direction and the direction orthogonal to this, thereby making the timing of the pressing stimulus different,
A good treatment effect can be obtained by giving a variety of stimuli to the treatment section.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a perspective view showing a part of a massage device according to the present invention in a cutaway manner, and FIG. 2 is a longitudinal sectional view of the massage device according to the present invention.

In FIG. 1, reference numeral 1 denotes a casing having a rectangular box shape with a shallow bottom. A rectangular opening 1a is formed on the top surface of the casing 1, and a pair of support plates 2 and 2 are extended inside the casing 1 along opposing side edges of the opening 1a. . A portion of a predetermined width along one side edge of the opening 1a on the top surface of the casing 1 is raised more than the other portion, and inside the raised portion, the back surface of one support plate 2 (with the other support plate 2). A motor 3 serving as a driving source is housed along the non-opposing surface of the motor 3, and power is supplied to the motor 3 in accordance with the operation of a switch 4 mounted on the outside of the raised portion. Has become.

A plurality of drive shafts 1 are provided between the support plates 2 inside the casing 1 at predetermined intervals in the extending direction thereof.
0, 10 ... (only two are shown) are installed. As shown in FIG. 2, these drive shafts 10, 10... Are rotatably supported about respective axes by separate ball bearings 11, 12 fitted at corresponding positions of the support plates 2, 2, respectively. Are arranged in parallel with each other in a plane substantially parallel to the top surface of the casing 1,
One drive shaft 10 at one end in the arrangement direction is connected to one support plate 2.
The worm wheel 13 protruding to the rear side of the motor 3 and fitted to the protruding end is engaged with the worm 14 fitted to the output shaft of the motor 3.

Further, spur gears 15, 15... Of the same shape are fitted on the front side (the surface facing the other support plate 2) of the support plate 2 of the drive shafts 10, 10. Spur gears of 15,15…
Are meshed with adjacent ones via a pair of transmission gears 16, 16.

When the motor 3 is driven to rotate, the rotation is first transmitted to one drive shaft 10 via the worm 14 and the worm wheel 13 meshing with the worm 14 and then to the drive shaft 10. It is transmitted to the adjacent drive shaft 10 via the fitted spur gear 15, the pair of transmission gears 16, 16 meshing with the spur gear 15, and the spur gear 15, and further transmitted through all the drive shafts 10, 10 Are sequentially transmitted to. That is, the drive shafts 10, 10 ...
Is driven to rotate at a constant speed around each other axis in accordance with the rotation of the motor 3.

Each of the drive shafts 10, 10,...
A plurality of (six in this embodiment) rollers 5, 5,... Are arranged side by side in the axial length direction within the formation range of the opening 1a. FIG. 3 is an enlarged sectional view showing a fixed state of the rollers 5, 5,... To the drive shaft 10, and FIG. 4 is a transverse sectional view taken along line IV-IV in FIG.

As shown in FIGS. 2 and 3, the roller 5 has a pressing ring on the outer periphery of a cylindrical roller body 5a having a flange at one end.
5b is loosely fitted so as to be relatively rotatable. The roller main body 5a is formed with a shaft insertion hole 50 that penetrates a position eccentric with respect to the outer periphery in the axial direction, and the shaft of the shaft insertion hole 50 is formed at one position on the outer peripheral surface. A screw hole 51 is drilled toward the heart.

As shown in the figure, the roller body 5a is fixed by inserting the respective shaft insertion holes 50 into the drive shaft 10 and tightening the set screws 52 screwed into the screw holes 51. Since the roller body 5a is eccentric with respect to the outer periphery of the roller body 5a, by changing the tightening position of the set screw 52 on the periphery of the drive shaft 10, the roller body 5a is moved in an appropriate direction with respect to the axis of the drive shaft 10. Can be eccentric. The six rollers 5,
The roller bodies 5a, 5a,... Of the three groups are formed as a set of three as shown in the drawing, and are brought into contact with each other in the axial direction together with a stopper 53 fitted to the drive shaft 10 on one side. As shown in FIG. 4, the fixing is performed with the respective eccentric directions directed to different directions by substantially equal angles.

The pressing ring 5b is made of a relatively soft material such as a synthetic resin, has a barrel-shaped outer shape whose diameter is gradually increased toward the center, and has the roller body 5a fixed as described above. The roller body 5a is loosely fitted to the outer periphery of the roller body 5a, and restricts movement in the axial direction between the flange portion on one side of the roller body 5a and the flange portion of the roller body 5a contacting the other side or the stopper 53. It is supposed to be.

As described above, the roller body 5 to each drive shaft 10
The rollers 5, 5,... formed by fixing the a, 5a... and the press rings 5b, 5b. , Rollers 5 and 5 fixed at corresponding positions of adjacent drive shafts 10 and 10
Are also different as shown in FIG. This is realized by changing the tightening position of each set screw 52 when fixing the roller body 5a to each drive shaft 10.

In the massage device according to the present invention, an upper cover 6 made of elastic cloth is attached to the periphery of the opening 1a of the casing 1, and the upper cover 6 is fixed to each of the drive shafts 10, 10,. Are arranged so as to cover the entire upper part of the rollers 5, 5,..., And inside the casing 1, a plurality of drive shafts to which a plurality of rollers 5, 5,.
10, 10,... Are arranged side by side in one plane.
As shown in (1), the casing 1 can be made extremely thin.

Now, the use of this massager is
The treatment is performed in such a manner that a treatment part such as a waist and a back is placed at a predetermined position on the surface of the upper cover 6, and the switch 4 is operated to rotate the motor 3 at an appropriate speed. At this time, since the casing 1 is thin, for example, it is possible to easily press the treatment unit in the supine position with respect to the massager placed on the floor.

The rotation of the motor 3 drives the drive shaft 1
0, 10 ... are driven to rotate around their respective axes, and each drive shaft 1
Are also eccentric with respect to the axis of the drive shaft 10, that is, the center of rotation, so that the rollers 5, 5,. The upper cover 6 is pushed up while its height is sequentially changed, and the treatment section on the surface of the upper cover 6 presses the outer periphery of the rollers 5, 5,. ring
The pressure is stimulated by the outer periphery of 5b, 5b.

At this time, the eccentric directions of the rollers 5, 5,... Are different on the respective drive shafts 10 and in the direction orthogonal to the drive shafts 10, ie, between the drive shafts 10, 10,. The state of the pressure stimulus at each part of the treatment unit placed on the surface of the is different, and this will change sequentially,
Satisfactory medical treatment effects such as promotion of blood circulation and muscle loosening can be obtained.

The pressing ring 5b which comes into direct contact with the upper cover 6 when the roller 5 rotates is loosely fitted to the roller body 5a fixed to the drive shaft 10 so as to be relatively rotatable. Is smoothly generated without being hindered by friction with the upper cover 6.

[0027]

As described above in detail, in the massage device according to the present invention, each of the drive shafts juxtaposed in one plane has an eccentric direction in both the axial direction and the direction perpendicular thereto. Since the eccentric rollers are attached differently, the thickness can be significantly reduced as compared with the conventional one, and since each eccentric roller rotates while moving forward and backward according to its eccentricity, it is pressed against the peripheral surface of these eccentric rollers. Pressing stimuli having different intensities are sequentially applied to the respective portions of the applied treatment section while being changed sequentially, so that a satisfactory treatment effect can be obtained, and an excellent effect is obtained.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view of a massager according to the present invention.

FIG. 2 is a longitudinal sectional view of the massage device according to the present invention.

FIG. 3 is an enlarged sectional view of a main part showing a fixed state of an eccentric roller.

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG.

[Explanation of symbols]

 Reference Signs List 1 casing 2 support plate 3 motor 4 switch 5 roller 5a roller body 5b press ring 6 upper cover 10 drive shaft

Claims (1)

(57) [Claims] 1. A plurality of drive shafts which are substantially parallel to each other in one plane and are driven to rotate around their respective axes, and are arranged side by side in their respective axial length directions. And a plurality of eccentric rollers for applying a pressure stimulus to the treatment unit, and the eccentric rollers on each drive shaft have their eccentric directions different from each other, and have a shaft on the plurality of drive shafts. Long way
The eccentric rollers whose eccentric positions correspond to each other
A massager characterized by being different from each other .