JP2000051303A - Massage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust massaging strength by varying the amount of eccentric motion. SOLUTION: Four gears 7 of the same type are arranged like a ring so that the adjacent gears mesh with each other, and an electric motor 8 is provided to input the rotating power to at least one gear. Erecting operating arms 4 are formed in such a manner that the lower ends are locked in eccentric portions Q separated in the radial direction of the axis 7a of rotation of each gear, and the vertical middle parts thereof are spherically journalled at supporting points P. The adjacent operating arms are engaged with the gears 7 so that the eccentric directions are symmetrical talking the boundary between them as a symmetry axis, and a movement regulating mechanism A is capable of regulating the movement of all of four portions of spherically journalled points P in the operating arms in the vertical direction at the same time.

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 one of the health appliances, and more particularly, to a massager which is designed to be operated by a plurality of operating arms to release a fir. The present invention relates to a technology that enables the fir strength to be adjusted.

[0002]

2. Description of the Related Art As this type of massager, there is known a massager disclosed in Japanese Patent Publication No. 59-19695.

[0003] In this massager, four identical spur gears are arranged in an annular shape such that adjacent gears mesh with each other, and rotational power is input to one of the four spur gears. An electric motor having an erect gear, a lower end of which is engaged with an eccentric portion radially away from the rotation axis of each spur gear, and an operating arm in a standing posture supported by a spherical bearing at an intermediate portion in the vertical direction. In this configuration, adjacent ones of the operation arms are provided in a state where the eccentric directions are angularly displaced by 90 degrees from each other.

[0004] In other words, human diseases are often caused by adhesions of motor neuromuscular muscles. In order to remove these adhesions, which cause intractable diseases such as stiff shoulders, lower back pain, and the like, they are turned in different directions.
The massage device was configured so that the eccentric rotation of each of the operating arms exerted a fir-releasing action on the affected part.

[0005]

However, in the prior art, it is possible to adjust the rotational speed of the operating arm by adjusting the driving speed of the electric motor, but the spherical support portion of the operating arm is fixed in position. Therefore, the trajectory of the eccentric rotation movement, that is, the swing width, was constant, and the strength of the fir loosening action could not be adjusted.

When treating the above-mentioned adhesion with a massager, it is only painful to give a strong fir-releasing action from the beginning, and it is necessary to strengthen the fir-releasing action as the adhesion of the motor neurons becomes loose. It has been found that strengthening the fir-releasing action stepwise over a relatively long period of time is an effective treatment.

In addition, if the affected part of the human body is different, there is a hard part or a soft part of the above-mentioned motor nerve muscle.
Since the states vary widely, it is often inconvenient that only a certain fir-releasing action can be exhibited as in the related art.

[0008] The present invention has been made in view of such circumstances, and has as its object the strength of the fir disentangling action of the operating arm so as to promote the normalization of blood vessels and nerves and maintain a healthy body. It is an object of the present invention to provide a massager which can be adjusted to remove the adhesion of motor neuromusculars in a short period of time while suppressing the pain of fir relaxation treatment.

[0009]

A first massaging device according to the present invention comprises a driving rotator 7 rotationally driven by a motor of a massager main body, and a driven rotator synchronously rotating with the driving rotator 7. 7, the lower end of each of the rotating bodies 7 is engaged with an eccentric portion Q radially separated from the rotation axis 7a, and the middle portion in the vertical direction is a part of the main body. 11 is provided with an operating arm 4 in a standing posture freely supported so as to be tiltable.
The above-mentioned free support fulcrum P is configured to be adjustable in the vertical direction.

[0010] In the second massager of the present invention, four identical gears 7 are arranged in an annular shape so that adjacent gears mesh with each other, and at least one of the four gears 7 is provided.
Based on a configuration in which a motor 8 for inputting rotational power is provided for each gear, a lower end engages with an eccentric portion Q radially away from the rotation axis 7a for each gear 7, and a vertical intermediate portion. Operating arm 4 in a standing posture in which the arm is freely tilted and freely supported
Is formed, and the adjacent operation arms 4 are engaged with the gear 7 so that the eccentric direction is symmetrical with the boundary as the axis of symmetry, and all four positions of the free support fulcrum P of the operation arm 4 are At the same time, a movement adjusting mechanism A for adjusting the movement in the vertical direction is provided.

[0011]

According to the first and second aspects of the present invention, the free support fulcrum P at the intermediate portion of the operating arm 4 in the vertical direction can be adjusted in the vertical direction. The ratio of the vertical interval to the horizontal interval between the engaging portion Q and the free support fulcrum P, that is, the standing angle of the operating arm 4 can be adjusted.

Accordingly, the eccentric rotation diameter at the upper end of the operation arm 4 can be adjusted to be large or small, and a strong fir-releasing action by a large eccentric rotation diameter or a weak (soft) fir-releasing action by a small eccentric rotation diameter can be set. It becomes possible to do.

In the second aspect, since the adjacent operating arms 4 are engaged with the gear 7 so that the eccentric directions are symmetrical, when the gear 7 rotates, the four operating arms 4 Each upper end repeats a state in which it simultaneously opens outward as shown in FIG. 1 and a state in which it simultaneously closes inward as shown in FIG. 3, while performing a small rotating motion, thereby exhibiting an effective fir loosening action. be able to.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, four operating arms 4 driven and rotated through holes 3a from the upper surface of a cover case 3 to which a pair of handles 1, 1 are attached via a stay 2, A massager is provided with an on / off switch 5 and a fir strength control switch 6 on the side surface of the cover case 3. That is, handle 1,1
By driving the operating arm 4 while holding it against an affected part such as a shoulder, the fir loosening action by the rotation of the operating arm 4 can be given to the affected part.

As shown in FIG. 2, inside the cover case 3,
Four spur gears (an example of gears) 7 having the same specifications such as the number of teeth and the outer diameter are arranged in a ring shape so that adjacent ones thereof mesh with each other, and a rotating shaft in a vertical direction is provided. Heart 7a
And an electric motor 8 for inputting rotational power to any one of the four spur gears 7 having the following. When the on / off switch 5 is turned on, the electric motor 8 rotates,
The pinion gear 8a rotates the four spur gears 7 so that adjacent ones rotate in opposite directions.

At a point of action Q at an eccentric point slightly radially away from the rotation axis 7a, the lower end of the operation arm 4 is connected to a spur gear 7 via a joyball (a kind of spherical shaft support structure) 9.
And an intermediate portion in the longitudinal direction of the arm (an intermediate portion in the vertical direction) is supported by an adjusting plate 11 via a universal bearing 10 having a spherical shaft support structure. As shown in FIG.
The universal bearing 10 includes an outer ring 10a fixed to the adjusting plate 11 and an inner ring 10b which comes into spherical contact with the outer ring 10a.
The operating arm 4 is internally fitted and supported so as to be slidable relative to the inner ring 10b. In other words, each operating arm 4 is positioned such that its arm intermediate portion is tiltable in the front-rear and left-right directions with the center point P of the universal bearing 10 as a fulcrum.

As shown in FIG. 2, the connection point 9 between the four spur gears 7 and the operating arm 4 is set so that the adjacent spur gears 7 are symmetrical in eccentric direction with respect to the boundary as a symmetry axis. Positioned. The relation of the eccentric direction being symmetric does not change even when the spur gear 7 rotates and the connection points 9 move.

As a result, when the spur gear 7 rotates,
The upper ends of the four operating arms 4 repeatedly open and close simultaneously and outwardly as shown in FIG. 1 and inwardly as shown in FIG. A natural fir loosening action.

A rubber cap 12 is fitted over the upper end of each operating arm 4. Next, the movement adjusting mechanism will be described. As shown in FIGS. 2 and 3, adjacent spur gears 7,
A screw shaft 13 rotatably supported around the center of the vertical axis is provided in each of four space portions formed between 7, and one of the four screw shafts 13 is extended downward. It is linked to a reversible rotatable adjustment motor 14. Then, the chain 16 is wound around a total of four sprockets 15 attached to the lower ends of the screw shafts 13, and the nut portions 17 screwed to the respective screw shafts 13 are fixed to the adjustment plate 11. In addition, a movement adjusting mechanism A is configured that can drive the adjusting motor 14 to move the adjusting plate 11 up and down in parallel. Reference numeral 20 in FIG. 2 is a guide for avoiding interference between the chain 16 and the joyball 9.

That is, as shown in FIG. 4, when the adjusting motor 14 is driven, all four screw shafts 13 rotate in the same direction at the same speed, so that the adjusting plate 11 can be moved up and down in parallel and can be freely adjusted and maintained. Yes, the position of the fulcrum P can be adjusted up and down. In other words, the operation knob 6a of the two-contact seesaw type fir strength control switch 6 is set to "strong".
When the push operation is performed to the side, the adjustment plate 11 moves downward to lower the position of the fulcrum P, and the vertical distance between the fulcrum P and the application point Q becomes narrower, and the rising angle of the operation arm 4 becomes larger. The eccentric rotational diameter R of the upper end, that is, the rubber cap 12 becomes large. In the drawing, reference numeral 18 denotes a thrust bearing, and reference numeral 19 denotes a ball bearing.

On the other hand, the fir strength control switch 6 is set to "weak".
When the push operation is performed to the side, the adjusting plate 11 moves upward to raise the position of the fulcrum P, and the vertical distance between the fulcrum P and the point of action Q is widened and the upright angle of the operation arm 4 is reduced. The upper end, that is, the eccentric rotation diameter R of the rubber cap 12 becomes smaller. Since the adjustment setting of the eccentric rotation diameter R can be performed, the fir-releasing action given to the affected part can be variably adjusted and set. Note that Rmax in FIG. 4 is the eccentric rotational diameter at the “strongest”, and Rmin is the eccentric rotational diameter at the “weakest”.

In this case, although not shown, a viewing window made of a transparent resin plate or the like that allows the position of the edge of the adjustment plate 11 to be visually recognized is provided on the side surface of the cover case 3 and “strongest”, “standard”, and “weakest”. It is convenient if it is possible to visually confirm the strength of the fir by providing it next to the viewing window for the scale of fir loosening.

Although the embodiment of the present invention has been described above, it is possible to use four rubber rings rotating in opposite directions by frictional contact with each other instead of the spur gear. Can be engaged with the spur gear by means other than the joyball. The number of rotating bodies such as these spur gears and rubber rings is two.
It is sufficient if there are more than one.

Then, the screw shaft 13 is connected to the cover case 3.
And the chain 16 can be wound without interfering with the joyball 9 without using the guide 20.

The adjusting plate 11 is fitted to a plurality of vertical shafts so as to be slidable up and down in place of the screw shaft 13, so that the position of the adjusting plate 11 can be moved up and down by an electric cylinder or manual operation. It is also possible to use a movement adjustment mechanism A of a drive operation type or a manual operation type.

[0026]

As described above, in the massage device according to the first and second aspects of the present invention, the free support fulcrum of the operating arm is moved up and down to adjust the eccentric rotation diameter of the operating arm to be large or small. This makes it possible to control the strength of the fir loosening action, which was not possible in the past, thereby relieving motor neuromuscular adhesions in a short period of time while suppressing pain, and normalizing blood vessels and nerves to maintain a healthy body. It has a great effect.

Further, in addition to the above-mentioned effects, the massage device according to the second aspect has the advantage that the eccentric rotation diameters of all four operation arms can be adjusted simultaneously, and the adjustment operation can be easily performed. Since the matching operating arms are engaged with the gear so that the eccentric directions are symmetrical, 4
The upper ends of the operating arms 4 of the book can be repeatedly opened and closed at the same time while performing a small rotating motion, thereby exhibiting an effective fir loosening action.

[Brief description of the drawings]

FIG. 1 is a plan view showing a massage device according to an embodiment of the present invention.

FIG. 2 is a plan view showing an interlocking rotation structure of an operation arm of the embodiment.

FIG. 3 is a partially cutaway side view showing the internal structure of the cover case of the embodiment.

FIG. 4 is a side view showing a change in the posture of the operation arm by the movement adjusting mechanism of the embodiment.

[Explanation of symbols]

 Reference Signs List 4 Working arm 7 Rotating body, gear 7a Rotating shaft center 8 Electric motor P Spherical shaft fulcrum (free supporting fulcrum) Q Eccentric point A Movement adjustment mechanism

Claims (2)

[Claims] 1. A rotating body driven by a motor of a massager main body and a driven rotating body that rotates in synchronization with the driven rotating body. An operating arm in a standing position in which a lower end is engaged with an eccentric portion radially away from the main body, and an intermediate portion in the vertical direction is freely supported so as to be tiltable on a part of the main body, and the free support of the operating arm is provided. A massage device characterized in that a fulcrum can be moved up and down and adjusted. 2. A motor for inputting rotational power to at least one of the gears, wherein four identical gears are arranged in an annular shape such that adjacent gears mesh with each other. The lower end is engaged with an eccentric part distant from the rotation axis in the radial direction, and the operation arms in the upright posture in which the middle part in the vertical direction is freely supported to be tiltable are formed, and the adjacent operation arms are connected to each other. A gear adjusting mechanism for simultaneously engaging the gear so that the eccentric direction becomes symmetrical with the boundary as a symmetry axis, and simultaneously adjusting the movement of all four free support points of the operating arm in the vertical direction. Characteristic massager.