JPH11128301A - Roller massager - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller massager constituted to effectively massage the back in particular. SOLUTION: The shaft part 10a of a motor unit 10 with a motor 11 wounded inside is fixed to a housing. One tip part of a driving shaft 20 is connected to the rotary shaft 12 of the motor 11 through gear units 13 and 14 and the other tip of the shaft 20 is rotatably supported by the housing.One roller supporting plate 30 is fixed to the shaft 20 and also another roller supporting plate 31 is supported rotatably by the part 10a. A roller shaft 40 with rollers 41 and 42 is disposed between the both of the plates 30 and 31 and at the center part of the shaft 40, a pair of rollers 42 having a diameter smaller than the roller 41 respectively provided on the both sides pinching this center part is provided with pinching a short length spacer of 44, in between.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller used to relieve fatigue of various parts of the body (sole, ankle, calf, thigh, buttocks, waist, arms, neck, etc.) or to remove meat. About massager.

[0002]

2. Description of the Related Art As such a roller massager,
For example, there is a “cosmetic health device” described in Japanese Utility Model Application Laid-Open No. 63-40930. As shown in FIG. 14, this beauty and health device includes a pair of support frames 100 arranged opposite to each other.
The shaft 102a of the housing 102 to which the motor 101 is fixed is fixed to one (right) support frame 100, and the motor 10 is fixed to the other (left) support frame 100.
One output shaft 103 is rotatably supported by a bearing 104. A roller support plate 105 is fixed to the output shaft 103, and a roller support plate 106 is rotatably supported by a bearing 107 on a shaft portion 102 a of the housing 102.

A protective cover 108 in the form of a drum is attached to both roller supporting plates 105 and 106, and a plurality of massage rollers 109 rotate on both roller supporting plates 105 and 106 with a small gap from the protective cover 108. Mounted as possible. Further, the outer periphery of all the massage rollers 109 is covered with a cover 110 made of cloth or the like. In this health device, as the output shaft 103 rotates by the operation of the motor 101, the roller support plates 105 and 106 rotate, and the massage roller 109 also rotates. Each part of the body is massaged by the rotating operation of the massage roller 109.

[0004]

By the way, in the conventional roller massager as shown in FIG. 14, the surface of the massage roller 109 has wavy irregularities, and the convex portion presses each part of the body to perform massage. . The convex portions are provided on both sides of the central portion of the massage roller 109, but are not provided at the central portion. When the back is massaged by the massage roller 109 having such a shape, for example, the spine is positioned at the center. At this time,
The inner convex portions opposed to each other with the central portion therebetween come into contact with the spine sandwiching the spine.

However, as is apparent from FIG. 14, the upper massage roller 109 and the lower massage roller 109 in the drawing have different lengths of the central portion where no unevenness is formed, and therefore, the opposite sides of the central portion sandwich the central portion. The distance between the inner convex portions is also different. In the case of such a configuration, since the position at which the convex portion contacts the back changes, it is difficult to constantly massage with a uniform pressure along the back muscle. In addition, since the size (projection degree) of all the protrusions is the same, it is difficult to effectively massage the back muscle having an uneven surface.

Accordingly, the present invention has been made in view of such a problem, and an object of the present invention is to provide a roller massage device configured so that a back muscle can be effectively massaged.

[0007]

In order to achieve the above object, a roller massager according to the present invention is rotatably supported by a housing, and a plurality of rollers (fir balls) are provided on a cylindrical peripheral surface. It is characterized by comprising a roller unit arranged, and performing massage by rotating the roller unit.

[0008] In this roller massager, if a pair of rollers are opposed to each other so as to hit the spine on both sides of the spine, the spine can be massaged effectively.
Further, the roller massage device according to claim 2 has a shaft portion fixed to the housing, and a motor unit having a motor mounted therein, and one end portion connected to a rotation shaft of the motor in the motor unit, A drive shaft having the other end rotatably supported by the housing, one roller support plate fixed to the drive shaft, and the other roller support plate rotatably supported by the shaft of the motor unit; A roller shaft having a plurality of rollers (fir balls) and provided between the two roller support plates is provided, and the diameter of the roller shaft is smaller in the center than in the rollers provided on both sides of the center. A roller unit having a pair of rollers provided at intervals.

In this roller massage device, a pair of rollers having a smaller diameter than the rollers on both sides are provided at the center of the roller shaft so that if this center is applied to the spine, the spine will be located between the rollers having the smaller diameter. The roller having a small diameter hits the spine. Therefore, a constant massage can be performed along the back muscles at a uniform pressure. In addition, since the center roller has a smaller diameter than the rollers on both sides, it is possible to massage the back muscles effectively.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 is an external perspective view of a roller massager according to one embodiment, FIG. 2 is a plan view thereof, and FIG. 3 is a right side view of FIG. This roller massager includes a housing 1 including an upper housing 2 and a lower housing 3. In the upper housing 2, various switches 5 (a to e) are arranged in addition to the power switch 4. Further, a remote control receiver 7 that includes a remote controller 6 and receives a signal from the remote controller 6 is provided in the upper housing 2. Further, a power cord 8 extends from the housing 1, and a non-slip rubber 9 is attached to the bottom of the lower housing 3.

In the roller massager of this embodiment, a switch 5a is a program operation switch for selecting a roller program operation pattern (high function), and a switch 5b is a roller program operation pattern (single function).
The program operation switch for selecting the switch 5c is
Direction switch for changing the rotation direction of the roller, switch 5d
Is a speed switch for lowering the rotation of the roller (the lower limit is fixed), and the switch 5e is a speed switch for increasing the rotation of the roller (the upper limit is fixed).

FIG. 4 is a plan view of a main part of the roller massage device with the upper housing 2 removed, FIG. 5 is a partially cutaway sectional view of FIG. 4, and FIG. 6 is a left side view of FIG. FIG. 7 is a cross-sectional view taken along line AA of FIG. 5, and FIG.
8 is shown in FIG. 8, a partially broken sectional view showing the internal structure of FIG. 4 is shown in FIG. 9, a sectional view taken along line CC of FIG. 9 is shown in FIG. 10, and a sectional view taken along line DD of FIG. Is shown in FIG.

In the internal structure of the roller massager shown in these figures, the motor unit 10
And a motor 11 is mounted inside. The rotating shaft 12 of the motor 11
One end of a drive shaft 20 is connected to the gear units 13 and 14 for reducing the number of revolutions, increasing the output of torque, and the like. The other end of the drive shaft 20 is rotatably supported by the housing 1.

One roller support plate 30 is fixed to the drive shaft 20, and a shaft 10a of the motor unit 10 is fixed.
The other roller support plate 31 is rotatably supported by a bearing 33. A plurality of (here, eight) roller shafts 40 are concentrically arranged at equal angular intervals between the two roller support plates 30 and 31.
Has three large rollers 41, two small rollers 42 smaller in diameter than the large roller 41, three long spacers 43, and one short spacer 44. Further, an annular roller shaft support plate 50 for preventing the roller shaft 40 from bending and the like and increasing the overall strength is fixed to all the roller shafts 40, and rotates integrally with the roller shafts 40.

In this roller massager, the motor unit 10, the drive shaft 20, the roller support plates 30, 3
1. A roller unit 60 is constituted by the roller shaft 40 with the large roller 41 and the small roller 42, and the roller unit 60 is rotatably supported by the housing 1. Further, each part will be described in detail. The gear units 13 and 14 provided in the motor unit 10 are housed in a gear case 15, and the gear case 15 forms a part of the motor unit 10. Inside the gear case 15, the drive shaft 20 is supported by a bush 16 fitted into the gear case 15 so as not to shake.

The other end of the drive shaft 20 is rotatably supported by a bearing 21 provided on the housing 1. The bearing 21 is fixed to the housing 1 by the shaft holder 23 being attached to the lower housing 3 with screws 24 while being surrounded by an annular rubber (elastic material) 22 (see FIG. 11). On the other hand, the shaft portion 10 a of the motor unit 10 is fixed to the housing 1 by being mounted on the lower housing 3 by screws 27 while being surrounded by an annular rubber (elastic material) 25. Further, the stopper pin 29 inserted into the rubber tube 28
Is inserted vertically into the lower housing 3 through the shaft portion 10a, whereby the shaft portion 10a is fixed to the lower housing 3 so as not to move (see FIG. 10).

The drive shaft 20 and the roller support plate 30
The screw portion formed on the outer periphery of the drive shaft 20 and the screw portion formed on the inner periphery of the hole of the roller support plate 30 are screwed together to be integrally fixed. The roller support plate 31 is supported by the shaft portion 10a of the motor unit 10 by a bearing 33. The bearing 33 is held by a bearing holder 34, and the roller support plate 31 is integrally attached to the bearing holder 34. Therefore, the roller support plate 31 is supported by the shaft 10a via the bearing 33 in the bearing holder 34.

Of the eight roller shafts 40, four roller shafts 40 spaced at an angle of 90 ° from each other are:
As shown in FIG. 6, the E-ring 35 is fitted to one end of the roller support plate 31 inserted into the through hole, so that the E-ring 35 is attached to the roller support plate 31 so as not to come off. The other end of the roller shaft 40 is similarly attached to the roller support plate 30. The remaining four roller shafts 40 are attached to the roller support plate 31 by fitting one end of the roller shaft 40 into the groove of the roller support plate 31. Of course, the other end is similarly attached to the roller support plate 30 (see FIG. 8).

Of the eight roller shafts 40, the four roller shafts 40, which are equiangularly spaced (90 °) from each other, have two large rollers 41 and one long spacer 43 on the left with respect to the center. And one large roller 41 and two long spacers 43 on the right side with respect to the center, and two small rollers 42 and one short spacer 44 on the center. The remaining four roller shafts 40
One large roller 41 and two long spacers 43, two large rollers 41 and one long spacer 43 on the right part,
Two small rollers 42 and one short spacer 4 in the center
And 4. The roller shafts 40 in which the arrangement of the large rollers 41 and the long spacers 43 are different are alternately arranged. In addition, the circumference of all the roller shafts 40
It is covered with a cover cloth 47 for softening the feeling of contact with each part of the body.

In all the roller shafts 40, the two small rollers 42 at the center and one short spacer 44 are
Although arranged between the roller shaft support plates 50, the arrangement of the small rollers 42 and the short spacers 44 is the same. The length of the short spacer 44 is substantially equal to the distance sandwiching the spine of the body, so that the pair of small rollers 42 face each other at that distance.

The roller shaft support plate 50 is fixed to the eight roller shafts 40 and rotates integrally with the roller shaft 40. The motor unit 10 passes through the center of the roller shaft support plate 50, and the roller shaft support plate 50
Does not contact the motor unit 10.
When the back is massaged using the roller massager configured as described above, the spine is made to face the center of the roller shaft 40. Then, the small roller 42 contacts the spine with the spine in between, and the spine is massaged by the small roller 42 due to the rotation of the roller shaft 40. Here, in all the roller shafts 40, the arrangement of the small roller 42 and the short spacer 44 at the center thereof is the same, so that the back muscle from the waist to the neck can be massaged uniformly with uniform pressure. In addition, since the small roller 42 has a smaller diameter than the left and right large rollers 41, the spine can be massaged almost continuously with light stimulation.

Also, at the left and right portions of the eight roller shafts 40, one and two large rollers 41 are alternately arranged, respectively. (Shiatsu) strong stimulation is given. For this reason, for example, when massaging the sole of the foot,
By placing the left and right feet on the left and right, respectively, the outside and inside of the foot are stimulated alternately.

Further, since the large roller 41 has a cylindrical shape, and particularly has a flat surface, the large roller 41 comes into surface or line contact with the body, and the contact portion is evenly stimulated by a uniform force to obtain a pleasant stimulus. Can be Incidentally, since the surface of the small roller 42 is a curved surface, the small roller 42 comes into point contact with the body, so that the back muscle can be effectively massaged. FIG. 12 (corresponding to FIG. 5) shows another example of the form of the roller in the roller shaft 40. Here, one roller shaft 4
A roller 45 having a larger diameter than the large roller 41 is provided on the left side of the roller 0, and a similar large diameter roller 45 is provided on the right side of another roller shaft 40. If one such large-diameter roller 45 is provided at a different position on the roller shaft 40, the body part is periodically strengthened by the large-diameter roller 45 every time the roller support plates 30, 31 make one rotation. As a result, the finger pressure is more reliably obtained. Therefore, a large-diameter roller 4
If 5 is applied, acupressure massage can be performed intensively on that part.

FIG. 13 shows another example of the roller configuration.
Here, on the left and right portions of one roller shaft 40,
One large-diameter roller 45 is provided, and one large-diameter roller 45 is provided at different positions on the left and right portions of another one roller shaft 40. In this case, two large-diameter rollers 45 on each of the left and right portions of the two roller shafts 40 alternately abut on the body part in proximity.

The shape of the large-diameter roller 45 is the same as that of the large roller 41, but may be another shape (for example, a shape with a slightly sharper surface or a flat shape). Further, since it is sufficient to provide one large-diameter roller 45 at a different position on the roller shaft 40, all the large rollers 41 of one roller shaft 40 may be changed to the large-diameter roller 45. Alternatively, the roller shaft 40 may be provided separately. Of course, one large diameter roller 45 may be provided on one roller shaft 40.

[0026]

According to the roller massager of the present invention (claim 2), as described above, a pair of rollers having a smaller diameter than the rollers on both sides are provided at the center of the roller shaft. (In the case of claim 1 as well, by arranging the rollers in this way), if the backbone is opposed to the central part when massaging the back, the spine is located between the small-diameter rollers, and the small-diameter rollers are Will be hit. Therefore, a constant massage can be performed along the back muscles at a uniform pressure. In addition, since the center roller has a smaller diameter than the rollers on both sides, it is possible to massage the back muscles effectively.

Also, by providing a roller having a larger diameter than the rollers on both sides of the central portion in a portion other than the central portion of the roller shaft, the body portion is periodically strongly pressed by the large-diameter roller, and a finger pressure effect is obtained. Is obtained.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a roller massage device according to one embodiment.

FIG. 2 is a plan view of the roller massager of FIG. 1;

FIG. 3 is a right side view of the roller massager of FIG. 2;

FIG. 4 is a plan view of a main part of the roller massager of FIG. 2 with an upper housing removed.

FIG. 5 is a partially broken sectional view of the roller massage device of FIG. 4;

FIG. 6 is a left side view of the roller massage device of FIG. 5;

FIG. 7 is a sectional view taken along line AA in FIG. 5;

FIG. 8 is a sectional view taken along line BB of FIG. 6;

FIG. 9 is a partially cutaway sectional view showing the internal structure of the roller massager of FIG. 4;

FIG. 10 is a sectional view taken along line CC in FIG. 9;

FIG. 11 is a sectional view taken along line DD in FIG. 9;

FIG. 12 is a view corresponding to FIG. 5, showing another example of the form of the roller of the roller shaft.

FIG. 13 is a view corresponding to FIG. 5, showing still another example of the form of the rollers of the roller shaft.

FIG. 14 is a sectional view of a main part of a roller massage device according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 10 Motor unit 10a Shaft 11 Motor 12 Rotating shaft 20 Drive shaft 30, 31 Roller support plate 40 Roller shaft 41 Small roller (small diameter roller) 42 Large roller 43 Long spacer 44 Short spacer 45 Large diameter roller 47 Cover Cloth 60 roller unit

Claims (6)

[Claims] A roller unit rotatably supported by a housing and having a plurality of rollers (fir balls) arranged on a cylindrical peripheral surface, and performing a massage by rotating the roller unit. Massager. 2. A motor unit having a shaft fixed to a housing and having a motor mounted therein, one end of which is connected to a rotating shaft of the motor in the motor unit, and the other end of which rotates with the housing. A drive shaft rotatably supported, one roller support plate fixed to the drive shaft, another roller support plate rotatably supported by the shaft of the motor unit, and a plurality of rollers (fir balls) A roller shaft provided between the two roller support plates, and a pair of rollers each having a smaller diameter than rollers provided on both sides of the central portion at the center of the roller shaft. A roller massage device comprising a roller unit provided to be placed. 3. The roller massage device according to claim 2, wherein the distance between the pair of small-diameter rollers is a distance sandwiching the spine of the body. 4. The roller massage device according to claim 2, wherein a spacer is provided between said pair of small-diameter rollers to maintain an interval therebetween. 5. The roller massager according to claim 2, wherein the roller shaft has a roller having a diameter larger than the rollers on both sides of the central portion in a portion other than the central portion. 6. The roller massager according to claim 5, wherein the roller of the roller shaft, the small-diameter roller and the large-diameter roller are rotatable with respect to the roller shaft.