JPH07289600A - Massage machine - Google Patents

Abstract

PURPOSE:To perform width direction adjustment without requiring a width adjusting mechanism in a simplified width adjustment. CONSTITUTION:A two-position width adjusting function by the half rotation of a main spindle 1 is provided in this massage machine in which treating pieces 5 are provided on the outer peripheries of a pair of inner wheels 2 inclined in directions opposite each other to a rotatably driven main spindle 1. The width adjustment is performed by utilizing the inclination of the inner wheel 2 to the main spindle 1 so as to make the treating pieces 5 perform massage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massaging machine for massaging a human body by a pair of left and right treatment elements.

[0002]

2. Description of the Related Art In a massage machine having a pair of left and right massaging elements, a pair of inner rings that are eccentric in the same direction and inclined in opposite directions are provided on a main shaft that is driven to rotate about an axis, and the outer circumference of each inner ring is provided. There is one that has a treatment element that can freely rotate with respect to the inner ring. In this massage machine, the massager can perform a massage massage operation by rotating the main shaft, and by moving the main shaft in a direction orthogonal to the axial direction, the massager stretches the back of the back of the human body. A massage operation can be performed.

In this type of massaging machine, a width adjusting function is provided so that the width between two points where the two treatment elements contact the human body can be changed by varying the distance between the pair of treatment elements. However, conventionally, this width adjustment has been performed by moving both treatment elements in the axial direction with respect to a main shaft for driving both treatment elements.

[0004]

In this case, in addition to widening the range that can be massaged by the treatment element,
Since it is possible to massage the part that matches the user's physique, it exerts a high treatment effect, but on the other hand, many parts are required to incorporate a width adjustment mechanism for moving the treatment element in the axial direction of the spindle. Since the massaging mechanism becomes large at the same time as it is required, the massaging mechanism becomes large and the cost becomes high.

The present invention has been made in view of the above circumstances, and the object of the present invention is simple width adjustment, but it is possible to perform width adjustment without requiring a width adjustment mechanism. To provide the machine.

[0006]

SUMMARY OF THE INVENTION The present invention, however, provides a massager in which a massager is provided on the outer circumference of a pair of inner rings that are inclined in opposite directions with respect to a rotationally driven main shaft,
It is characterized in that it has a two-position width adjusting function by half rotation of the main shaft.

[0007]

According to the present invention, since the width is adjusted by utilizing the inclination with respect to the main shaft that the inner ring has in order to allow the massager to perform a massaging massage, an independent width adjusting mechanism is not required. The width can be adjusted.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. This massage machine is incorporated into a backrest of a chair or a bed, but in the illustrated example, as shown in FIG. It shows what is built into the backrest, which is reclining freely. In this chair, a seat portion 82 and an armrest 83 are provided on a lower frame 81 framed by a pipe, and the lower portion of the frame of the backrest 84 is attached to the lower frame 8.
1 and by attaching an electric expansion / contraction unit 86 between the lower end of the frame 85 and the lower frame 81 as shown in FIGS. 9 and 10 so that the backrest 84 can be reclined electrically. A massage mechanism M is installed between the frames on both sides.

As shown in FIG. 4, the massaging mechanism M is provided with a motor block 20 at one end and a speed reducer block 19 at the other end, and is attached to the frame of the backrest 84 from both sides of these blocks 20 and 19. Both the blocks 20 and 19 are formed by protruding rollers 18 rolling in the rails and pinions 17 that mesh with racks provided on the rails.
A main shaft 1 and an auxiliary shaft 13 are installed between them. The auxiliary shaft 13 whose both ends are supported by the blocks 20 and 19 is connected to the main shaft 1 and the auxiliary shaft 13 via a pair of rotating plates 15 and 15 which are rotatable with respect to the auxiliary shaft 13. A parallel rotating shaft 12 is attached to the auxiliary shaft 1.
The rotary shaft 12 is rotatable around the axis 3. The rotary shaft 12, both ends of which are supported by the pair of rotary plates 15, 15, is rotatable with respect to the rotary plate 15. Further, the rotary shaft 12 is formed by connecting a pair of crankshafts 12a and 12b whose eccentric directions are opposite to each other in the axial direction, and the non-eccentric parts at both ends are the rotary plates 15.
Supported by.

The motor housed in the motor block 20 drives the main shaft 1, the rotary shaft 12, and the pinion 17 to rotate, and also rotates the rotary shaft 12 around the auxiliary shaft 13. That is, the driven shaft 31 disposed on the outer surface of the reduction gear block 19 is attached to the belt 2 by the pulley 28 mounted on the output shaft of the motor protruding below the motor block 20.
9 and the pulley 30, and the driven shaft 31 and the speed reducing mechanism in the speed reducer block 19 are connected by the clutch 33, the pulleys 34 and 36, and the belt 35. The speed reduction mechanism section (not shown) in the speed reducer block 19 is composed of a speed reduction section and a plurality of clutch sections. When the clutch 33 is engaged, the motor output is selected for the spindle 1 or the pinion 17. To communicate. The driven shaft 31 has a clutch 32, a pulley 37, and a belt 3
8, the auxiliary shaft 13 through the pulley 39 and the worm 40.
The worm wheel 41 attached to is connected,
The pulley 42 integrated with the worm wheel 41 has a rotary shaft 12
A belt 44 is connected to a pulley 43 fixed to the. When the clutch 32 is connected, the motor output is transmitted to the rotary shaft 12 by the above-mentioned members, and the rotary shaft 12 rotates about the shaft.

Further, a feed screw 25 connected to the motor via pulleys 21 and 23, a belt 22 and a clutch 24 is provided on the outer surface of the motor block 20, and the feed screw 25 is screwed into the feed screw 25. The nut 26 and one of the pair of rotating plates 15 and 15 are connected by an elastically expandable / contractible spring unit 16. When the feed screw 25 is rotated by the motor output, the feed nut 26 that moves in the axial direction of the feed screw 25 is provided with the rotary plate 1 via the spring unit 16.
As a result, the rotary shaft 12 supported by the rotary plate 15 rotates around the auxiliary shaft 13.

A pair of inner rings 2 and 2 are attached to the main shaft 1 at intervals. Both inner rings 2 and 2 are eccentric to the main shaft 1 in the same direction by the same amount and are inclined in opposite directions, and rotate with the main shaft 1 by engaging with the protrusions 11 formed on the main shaft 1. The outer rings 3 and 3 are attached to the outer peripheral surfaces of the outer rings 3 and 3 in a freely rotatable manner. The middle parts of the arms 4 and 4 are fixed to the outer rings 3 and 3, respectively.
A roller-shaped massaging element 5 which is freely rotatable is attached to each of the arms, and the other end of each arm 4 is connected to the rotary shaft 12 via a connecting link 8. In both of the connecting links 8 and 8, the connecting portion with the rotating shaft 12 encloses the sphere 80 so that it can be freely rotated three-dimensionally, and the connecting portion with the arm 4 is also a ball joint 70. It is formed so that it can also be freely rotated three-dimensionally, and one end of one connecting link 8 is a sphere 80 provided on the crankshaft 12a which is an eccentric part of the rotating shaft 12.
In addition, the other connecting link 8 engages with a spherical body 80 provided on the crankshaft 12b, which is also an eccentric portion of the rotary shaft 12. Further, the non-eccentric portion at the center of the rotating shaft 12 and the auxiliary shaft 13 are connected to each other by a connecting plate 9 which is freely rotatable.

When the spindle 1 is rotated by the motor,
Since the inner ring 2 that rotates together with the main shaft 1 is eccentric and inclined with respect to the main shaft 1, a treatment element mounted via an arm 4 to an outer ring 3 that is freely rotatably mounted on the inner ring 2. 5 is a motion that draws a three-dimensional trajectory T indicated by an arrow in FIGS. 1 and 5 in accordance with the rotation of the spindle 1 because the movement of the arm 4 is restricted by the connecting link 8. That is, the vertical direction, the axial direction of the spindle 1, and the spindle 1
Perform a movement that changes the position in the direction of protrusion from. The pair of massagers 5 and 5 that perform such a movement symmetrically give a so-called "nerve massage" massage to the back of the user. The connecting link 8 connected to the arm 4 via the ball joint 70 is swung up and down and left and right as the inner ring 2 rotates, but the connecting link 8 and the rotary shaft 12 form a ball joint. The treatment element 5 is smoothly operated because it is connected via the spherical body 80.

When the feed screw 25 is rotated by the motor to rotate the rotary shaft 12 around the auxiliary shaft 13 via the spring unit 16 and the rotary plate 15, the arm 4 and the outer ring 3 are accompanied. Rotates around the inner ring 2, and the treatment element 5 changes the amount of protrusion in the front direction in which the back surface of the user is located. Therefore, when rotating the main shaft 1 to obtain a massage, a strong massage massage is performed. And a weak fir massage can be selectively performed. The strength can be adjusted. In addition, when performing the strength adjustment during the kneading massage by rotating the main shaft 1, the strength adjustment by connecting the clutch of the motor and the feed screw 25 is the retraction of the treatment element 5 due to the eccentric component of the inner ring 2. It is preferable to carry out during the retreat, especially in the first half of the retreat or during the period when the retreat speed is high.

When the rotating shaft 12, not the main shaft 1, is rotated about the rotating shaft 12, the connecting link 8 which is moved along with the rotation of the crank shafts 12a and 12b, which are the eccentric parts of the rotating shaft 12, is connected via the ball joint 70. The arm 4 connected is moved, and the movement of the arm 4 at this time is a movement of rotating with the outer ring 3 around the stopped inner ring 2, so that the treatment element 5 at the tip of the arm 4 is the inner ring. Although it depends on the position 2, when viewed from the front, a straight line reciprocating motion in the up-and-down direction is performed and a tapping massage is performed. Since the eccentric directions of the crankshafts 12a and 12b of the rotary shaft 12 are opposite to each other, the tapping operation by the pair of treatment elements 5 and 5 is alternately performed.

When the pinion 17 is rotated by the motor, the massage mechanism M moves up and down along the backrest 84 of the chair due to the engagement between the rack of the frame of the backrest 84 and the pinion 17. Therefore, the position of the treatment element 5 can be changed up and down. In addition, at this time, a massage for stretching the back muscles in which the treatment element 5 moves while rubbing the back surface of the human body can be obtained.

In this massage machine, the width is adjusted by utilizing the inclination of the inner ring 2. That is, when the treatment element 5 is located at the position shown by the solid line in FIG. 1, if the main shaft 1 and the inner ring 2 are rotated a half turn, the position shifts to the position shown by the chain line due to the inclination of the inner ring 2 with respect to the main shaft 1. At this time, the interval between the treatment elements 5 and 5 becomes wider than that at the position shown by the solid line. That is,
It is the same as the width adjustment. However, spindle 1
Since the inclination of the inner ring 2 with respect to is used, this width adjustment is not effective for the massage massage using this inclination, but it is effective for the above-mentioned back stretching and tapping massage. . The above-mentioned two points are the times when both treatment elements 5 and 5 are parallel to the vertical direction.

Since the inner ring 2 is not only inclined with respect to the main shaft 1 but also eccentric, the positions of the treatment elements 5 and 5 in the direction of contact with the human body also change with the width adjustment. As mentioned above, this point can be compensated by the strength adjustment function in the case of having the strength adjustment function, and in this case, the strength adjustment function is also activated along with the width adjustment, and the strength of the massage varies. It is desirable to make sure that it does not change due to adjustment.

Further, in this massage mechanism M,
A pressure sensor S is incorporated in the spring unit 16. The spring unit 16 receives a reaction force when the treatment element 5 presses the human body as a tensile force, and also incorporates a coil spring 160 that is compressed when the tensile force acts as shown in FIG. However, when the coil spring 160 is compressed, the movable element 162 that is pressed and rotated by the bush 161 is attached to the pressure sensor S composed of a variable resistor, and the reaction force is constantly monitored. You can do it.

Here, the output of the pressure sensor S is used for strength adjustment. That is, if the user strongly presses his / her back against the massaging element 5 and the pressure sensor S detects a force stronger than the reaction force generated during the normal massage operation, the strength adjusting function is activated to activate the massaging element 5. It is designed to move to a strong massage by protruding the
At this time, the rotation speed of the motor is also increased to shorten the cycle of cyclic movement in the case of kneading massage or increase the number of times of hitting per unit time in the case of hitting massage. This makes it easy to switch to the massage of the strength and speed that the user likes.

The above-mentioned strength adjustment may be performed not by the strength adjustment function described above but by electric reclining. That is, in the state where the backrest 84 is awake as shown in FIG. 9 and the state where the backrest 84 is asleep as shown in FIG. 10, the latter body weight of the human body is heavier on the treatment element 5, The latter is a stronger massage, but if the user presses the back strongly against the massager 5,
The electric expansion / contraction unit 86 is operated in the direction in which the backrest 84 falls. When combined with the one using the strength adjustment function, the strength adjustment range becomes wider.

The tilt angle of the backrest 84 is set to increase gradually each time the user strongly presses the back against the treatment element 5, and the pressure for operating the electric expansion / contraction unit 86 is set on the backrest 84. If the tilt angle is increased as the tilt angle increases, the usability becomes better. Further, it is also preferable from the viewpoint of improvement in usability to perform the opposite operation, that is, control the electric expansion / contraction unit 86 so that the backrest 84 is raised when the user lifts his / her body away from the treatment element 5. .

The strength adjustment is performed as shown in FIGS. 2 and 3.
It is also possible to adjust the pressure in a large number of air bags 90 divided in the vertical direction to the left and right of the front surface of the backrest 84 by controlling the pump 91 and the exhaust valve 92 (shown in FIG. 8). When the air bag 90 is inflated, the human body is pushed away from the treatment element 5, and when the air bag 90 is contracted, the human body approaches the treatment element 5, so that the strength adjustment can be performed. Such an air bag 90 is arranged along the vertical direction between the pair of treatment elements 5 and 5, or is arranged on the front surface of the cover 93 that covers the lower front surface of the massage mechanism M as shown in FIG. It may be one. Instead of the pressure sensor S, the air pressure in the air bag 90 may be detected to detect whether or not the user strongly presses the body against the backrest 84.

The air bag 90 may be divided in the vertical direction so as to cover the entire front surface of the backrest 84. In this case, the body can be prevented from falling into the center of the backrest 84. However, the air bag 90 located at the height where the treatment element 5 is located is contracted by exhaust so as not to interfere with the treatment operation of the treatment element 5.

In any case, since there is no mechanical limitation on the strength adjustment by the air bag 90, it is easy to make the strength adjustment range wide, and the air bag 90 is effective as a cushioning material, and at the same time, it can be used as a maximum. When inflated to the limit, the treatment element 5 can be prevented from hitting the body, so that the value as a chair can be increased. The treatment child 5
It is also effective to be able to fold the arm 4 as shown in FIG. 13 so that the arm can be set in a state where it does not hit the body. 4 in the figure
Reference numeral 1 is an auxiliary link spring, and 42 is a slide rod.

As the use of the above-mentioned pressure sensor S, the operating range of the treatment element 5 is also regulated here according to the sitting height of the user. In other words, if the treatment element 5 is moved up and down with the treatment element 5 protruding, the output of the pressure sensor S will be as shown in FIG.
As shown in, since the shoulder position of the user changes greatly, the shoulder position of the user can be determined. Therefore, at the start of the massage operation, the shoulder position Y is determined by performing the operation for the shoulder position determination, and thereafter, the treatment element is moved to a height Y0 above the shoulder position by a predetermined distance (approximately 10 cm). 5 allows the treatment operation, but at a height higher than that, it is considered that the massage is applied to the head, so that the treatment element 5 is prohibited from performing treatment operations other than stretching the back muscles, that is, a massage massage operation and a pounding massage operation. I have to.

In FIG. 12, the side cover 94 covering the side surface of the massage mechanism M is configured to be extendable / contractible in the vertical direction of the backrest 84, and the upper end is connected to the massage mechanism M so that the massage mechanism M moves up and down. The thing which was made to expand and contract with it is shown. The side cover 94 can prevent the fingers from being pinched by the vertical movement of the massage mechanism M.

[0028]

As described above, according to the present invention, an independent width adjusting mechanism is required to adjust the width by utilizing the inclination with respect to the main shaft that the inner ring has in order to allow the massager to perform massage. It is possible to adjust the width without using the above, and since there is no independent width adjusting mechanism, a simple structure can be achieved, so that downsizing and cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a front view of the above.

FIG. 4 is a perspective view of the massage mechanism of the above.

FIG. 5 is a side view showing the same operation.

6A and 6B show a spring unit including the pressure sensor of the above, wherein FIG. 6A is a cutaway front view and FIG. 6B is a cutaway side view.

FIG. 7 is an explanatory diagram of a treatment operation prohibited range of the above.

FIG. 8 is a block diagram of the above air bag drive system.

FIG. 9 is a side view of the above.

FIG. 10 is a side view of the same when reclining.

FIG. 11 is a perspective view of another example of the above.

FIG. 12 shows an example having the same side cover, (a) is a side view, (b) is a front view of the side cover, and (c) is a side view of the side cover.

FIG. 13 shows an example in which the arm of the same is foldable, and (a) and (b) are both side views.

[Explanation of symbols]

 1 spindle 2 inner ring 5 treatment element

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masamichi Miyaguchi 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (6)

[Claims] 1. A massage machine having a pair of inner rings, which are inclined in opposite directions with respect to a rotationally driven main shaft, provided with treatment elements on the outer circumference thereof, and has a two-position width adjusting function by half rotation of the main shaft. A massager characterized by being 2. The pair of inner rings are eccentric to the main shaft in the same direction, and the treatment element is arranged at the tip of an arm provided on an outer ring rotatably arranged on the outer periphery of the inner ring. It has a strength adjustment function that adjusts the strength of the treatment operation by moving the support point that is the end, and the width adjustment by the width adjustment function is linked with the strength adjustment by the strength adjustment function. The massage machine according to claim 1. 3. A strength adjustment function and speed adjustment, comprising a pressure sensor for detecting a rubbing force, and adjusting the strength of the treatment force and the speed of the treatment speed when the force detected by the pressure sensor becomes large. The massage machine according to claim 1, which has a function. 4. The massage machine according to claim 3, wherein the strength adjustment is performed by an electric reclining mechanism for reclining the backrest of the chair on which the treatment element is arranged. 5. The massage machine according to claim 3, wherein the strength adjustment is performed by an air pressure adjusting mechanism that adjusts an air pressure of an air bag arranged on a front surface of a backrest of the chair on which the treatment element is arranged. . 6. A moving mechanism for moving the main shaft in a direction orthogonal to the axial direction, and a pressure sensor for detecting a rubbing force are provided, and a change in pressure detected by the pressure sensor during movement by the moving mechanism is changed. The massage machine according to claim 1, further comprising a shoulder position determination function for determining a user's shoulder position and an operation restriction function for restricting a treatment operation range of the treatment element based on the determined shoulder position.