JP2001314470A - Roller message mechanism and messager with the same built-in - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve massage effect by making a right and left pair of massage rollers intensively finger press or strike a particular affected part suffering a severe stiffness and enrich a variation of finger pressing or striking massage by making the massage rollers finger press or strike on affected parts in symmetry both simultaneously and alternately. SOLUTION: The roller massage 4 is provided with a rotary shaft 10, a right and left pair of massage rollers 16R, 16L which are arranged halfway on the rotary shaft 10 such that they cross with the shaft center at a right angle and are eccentric to the shaft center, a driving means 14 to rotate the rotary shaft 10 and a switching means 26 which switches between a double pressing position and a single pressing position. In the double pressing position the most projecting portions of the right and left pair of massage rollers 16R, 16L, which are farthest away from the rotary shaft 10, come in the same position in the direction in which the center of the rotary shaft 10 rotates and in the single pressing position the most projecting portions come at different positions 180 degree apart from each other in the direction in which the center of the rotary shaft 10 rotates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller massage mechanism capable of performing various massage operations on a human body and a massage device incorporating the mechanism.

[0002]

2. Description of the Related Art Conventionally, as a massage device having a built-in roller massage mechanism, for example, Japanese Patent Application Laid-Open No. 59-28963.
Bed-type massage device described in the official gazette,
Japanese Patent Publication No. 4-78307 and Japanese Utility Model Application Laid-Open No. 2-10962.
A relatively small mounting-type massage device described in Japanese Patent Application Laid-Open No. 8-208 is known. Among these, the bed-type massage device includes a roller massage mechanism that moves in the longitudinal direction with respect to the bed, and the massage mechanism includes a rotating shaft that is oriented in the width direction of the bed and moves in the longitudinal direction. And a pair of left and right massage rollers which are provided to be inclined with respect to the axial direction of the rotation shaft and whose inclination directions are opposite to each other.

Further, the above-mentioned placement type massage apparatus has a roller massage mechanism in a small placement type casing having an opening opening upward. The roller massage mechanism in this case includes a rotating shaft rotatably supported by the casing, and a pair of left and right disc-shaped massage rollers provided at a position corresponding to the opening in the middle of the rotating shaft. The pair of left and right massage rollers are also provided in a state of being inclined with respect to the axial direction of the rotating shaft so that the inclination directions are opposite to each other. In this type of roller massage mechanism, since the pair of left and right massage rollers is inclined in opposite directions, the mutual interval between the outer peripheral portions of the two massage rollers increases or decreases with the rotation of the rotation shaft. A massage can be performed by pressing the affected part between the two massage rollers.

However, in the above-described conventional roller massage mechanism, the pair of left and right massage rollers are fixed to the rotation shaft in a state where the inclination directions are opposite to each other, and the inclination directions of the two rollers relative to the rotation axis are relatively changed. Because it cannot be changed to, it can perform only massage massage. Therefore, in the case of the conventional roller massage mechanism in which a massage massage is performed by a pair of left and right inclined massage rollers, since only the massage massage can be performed, it is not possible to meet the diversified needs of the user, and the user is quickly bored. There were many.

[0005] On the other hand, various types of massage devices that can perform various massage operations other than massage massage have been proposed. However, such a massage device has a problem that the mechanical structure and control program of the drive system of the massage member are complicated by various massage operations, and the device is large and expensive. Therefore, the inventor of the present application has already developed a roller massage mechanism capable of performing a massage operation other than massaging massage without significantly complicating the structure, and the massage mechanisms are arranged coaxially with each other. A rotating shaft having a pair of left and right first and second shaft portions, a pair of left and right massage rollers provided at an intermediate portion of each shaft portion with respect to the axial direction, and a pair of left and right massage rollers. A switching means for switching between a kneading posture in which the inclination directions are opposite to each other and a non-kneading posture in which these inclination directions are the same is provided (see WO99 / 56694).

[0006]

By the way, in the case of the waist, back and shoulders of the human body, the stiff parts are often concentrated in narrow parts. For this reason, for example, when a masseuse massages such a treatment part, intensively acupressures the stiff part with the thumb,
It is usual to intensively hit a stiff part with a fist. However, in the above-described conventional roller massage mechanism, since the pair of left and right massage rollers is provided to be inclined with respect to the axial direction of each shaft portion, the outer peripheral edge of each roller is moved in the left-right direction (the shaft of each shaft portion). It touches the affected part while swinging in the direction of the heart. For this reason, in the conventional roller massage mechanism, even if each massage roller is set to a non-rubbing position and acupressure massage or tapping massage is performed, it is difficult to intensively apply acupressure or blow to a specific stiff affected part by each roller. There was a disadvantage that it was.

[0007] Further, in treatment parts such as the waist, back and shoulders, stiffness often occurs in a symmetrical portion which is equidistant from the spine. When performing a massage, it may be more effective not only to alternately apply acupressure or striking the symmetrically affected area but also to simultaneously acupressure or strike the symmetrically affected area. However, in the above-described conventional roller massage mechanism, since the pair of left and right massage rollers is provided to be inclined with respect to the rotation axis, the inclination directions thereof are the same as the kneading postures in which the inclination directions are opposite to each other. Even if it is possible to alternately acupressure or strike a symmetrical affected area that is equidistant from the spine by setting the massage roller to the non-rubbing posture However, it is not possible to simultaneously apply the acupressure or the blow to the symmetrical affected part, and there is a disadvantage that the variation of the acupressure or the blow massage is small.

In view of such circumstances, the present invention improves the massage effect by intensively applying acupressure or striking a specific stiff affected part by a pair of left and right massage rollers to improve the massage effect. An object of the present invention is to expand the variation of acupressure or percussion massage by performing both acupressure or percussion massage and alternate acupressure or percussion massage.

[0009]

According to the present invention, the following technical measures have been taken to achieve the above object. That is, the present invention provides a rotating shaft, a pair of left and right massage rollers provided at a middle portion of the rotating shaft at right angles to the axial direction and eccentric to the axial center, and rotating the rotating shaft. And a driving means for driving the roller massage mechanism, wherein the most protruding portions of the pair of left and right massage rollers farthest from the rotation axis are at the same position in the circumferential direction around the axis of the rotation axis. A switching means is provided for switching between a posture and a single-push posture in which the most protruding portions thereof are different from each other by 180 degrees in a circumferential direction around the axis of the rotation shaft.

According to the present invention, since the pair of left and right massage rollers are provided eccentrically with respect to the rotating shaft, the outer peripheral edges of both massage rollers advance and retreat alternately with respect to the affected part by the rotation of the rotating shaft. When the rotating motion of the rotating shaft is relatively low, the operation of slowly pressing the affected part (acupressure massage) is performed, and when the rotating speed of the rotating shaft is relatively high, Performs an operation of hitting the affected part (hitting massage). According to the present invention, a pair of left and right massage rollers are provided in the middle of the rotating shaft in a state orthogonal to the axial direction, and the outer peripheral edge of each roller is moved in the left-right direction (the axial center of the rotating portion). Since it moves forward and backward with respect to the affected part without swinging in the direction, it is possible to intensively acupressure or hit a specific affected part with severe stiffness.

Further, according to the present invention, the affected parts are alternately formed by the most protruding portions of both massage rollers by setting the most protruding portions of the two massage rollers in a one-sided pushing position in which the circumferential positions thereof are different from each other by 180 degrees. In addition to being able to finger-press or hit the massage part, the most protruding parts of both massage rollers are placed in a double-pushed posture in which the circumferential position is the same, so that the finger-tips or hits the affected part simultaneously by the most protruding parts of both massage rollers. be able to. Hereinafter, more specific embodiments of the massage mechanism of the present invention will be described.

That is, in the present invention, the rotating shaft is composed of a first shaft portion supporting one massage roller and a second shaft portion supporting the other massage roller and arranged coaxially with the first shaft portion. And, if the driving means is provided with a function of rotating the first shaft part forward or backward, the switching means makes the first shaft part and the second shaft part relatively to each other. It can be constituted by a half-turn clutch mechanism that regulates the rotation range to almost half a turn. In the case of such a structure, for example, when the rotation direction of the first shaft portion is switched by the driving means, the relative rotation position of the second shaft portion with respect to the first shaft portion changes by a half turn. Therefore, the massage roller can be switched to either the double-pressing position or the single-pressing position by simply rotating or reversing the rotational driving direction of the driving unit, so that the position switching control of the massage roller can be performed extremely easily. Become.

By the way, in the roller massage mechanism employing the switching means constituted by the half-turn clutch mechanism, if the relative rotation between the first shaft portion and the second shaft portion is performed too freely, the affected part is massaged. During the operation, the pressure on the massage roller from the affected part causes the driven-side shaft to rotate relative to the drive-side shaft without permission. May rotate, which may prevent proper acupressure or percussion massage from being performed.

Therefore, the present invention further provides a holding means for holding or restricting the relative rotation between the two shafts, which have been switched by the switching means, to hold the massage rollers in a double-pressing posture or a single-pressing posture. It is recommended to provide In this case, the holding means suppresses or regulates the relative rotation between the two shaft portions and holds both massage rollers in the double-pressing position or the single-pressing position. Even if the massage roller supported by the body receives pressure from the affected part, the driven side shaft part is unexpectedly rotated relative to each other to prevent the double-pressing posture or the single-pressing posture from being instantaneously collapsed. Good massage can be performed in a state where the roller is maintained in an appropriate double-pressing posture or a single-pressing posture.

In the present invention, the above-mentioned half-turn clutch mechanism is, more specifically, coaxially and non-rotatably fixed to the end of the second shaft, and has a circumferential length of half a turn. A tubular member having a lateral groove having an outer peripheral portion having a lateral groove, and a radially outwardly projecting end protrudingly provided at an end of a first shaft portion which is coaxially and rotatably inserted through the tubular member. A stopper pin housed in the lateral groove. When a half-turn clutch mechanism including the cylindrical member and the stopper pin is employed, a brake member that applies frictional resistance to relative rotation between the two shaft portions can be employed as the holding unit. For example, a brake cylinder body whose base end is coaxially and non-rotatably fixed to the first shaft portion and whose inner peripheral surface is slidably abutted on the cylinder member of the half-turn clutch mechanism. can do.

In this case, if a rubber shoe for increasing frictional resistance is interposed between the cylinder member and the brake cylinder, the gap between the first shaft portion and the second shaft portion can be improved. An appropriate rotation resistance can be given to the relative rotation.
On the other hand, as the half-turn clutch mechanism, a first clutch body fixed to an end of a first shaft portion, and a half-rotationally rotatable and axially movably inserted through an end portion of a second shaft portion. The second clutch body detachably meshes with the first clutch body, and the second clutch body is once disengaged from the first clutch body when the rotation shaft rotates forward or reverse, and then meshes with the clutch body again. And cam means.

In the case of such a half-turn clutch mechanism, when the rotation direction of the rotating shaft is reversed, the second clutch body is once released from the first clutch body and meshes with the first clutch body again. For this reason, if the two clutch bodies are engaged with each other at two positions separated by 180 degrees in the circumferential direction, the relative rotation between the two shaft portions for which the switching of the inclination direction of the roller is completed can be almost completely regulated. Become like That is, in this case, the holding means operates the clutch teeth formed at the meshing portions of the two clutch bodies so that the meshing positions of the two clutch bodies are two positions separated by 180 degrees in the circumferential direction around the axis. It does not require a member such as the brake cylinder or the rubber shoe that imparts frictional resistance to relative rotation between the two shaft portions.

If the drive means has a function of changing the rotation speed of the rotary shaft in at least two steps, the affected part can be removed when the rotation speed of the rotary shaft is relatively low. An operation of slowly pressing (acupressure massage) is obtained, and an operation of hitting the affected part (hit massage) is obtained when the rotation speed of the rotating shaft is set to a relatively high speed, and both the acupressure massage and the hit massage can be performed. A roller massage mechanism is obtained. In addition, in order to perform acupressure massage, the rotation speed of the rotating shaft is stretched to about 50 rpm, and in the case of performing hit massage, the rotating speed of the rotating shaft may be set to 150 rpm or more (preferably, about 200 rpm). .

The roller massage mechanism of the present invention does not exclude adding a massage member other than the pair of left and right massage rollers. For example, a large number of mini-rollers for performing roller massage on an affected part can be provided in a portion on both ends in the axial direction of a portion of the rotating shaft on which a pair of left and right massage rollers are provided. In this case, in addition to finger pressure and tapping massage by a pair of left and right massage rollers, roller massage by a large number of mini rollers can be performed by moving the affected part to both ends in the axial direction of the rotating shaft.

The roller massage mechanism of the present invention described above can be used in various forms, such as a relatively small mounted massage device or a hand-held massage device, or a relatively large standing-type massage device or a chair-type massage device. It is possible to incorporate in a massage device. In this case, with a leaning type massage device or a chair type massage device, it is necessary to massage the back region (the region from the waist to the shoulder) of the human body in a wide vertical direction. It is preferable to provide a moving means for moving along.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show a first embodiment of the present invention. 9 shows an example of the massage device 1 incorporating the roller massage mechanism 4 according to the present invention. In this case, the massage device 1 is a relatively small flat mounting type. This mounting type massage device 1 includes a mounting type casing 2 having an opening 2A that opens upward, and a roller massage mechanism 4 housed in the casing 2, and the opening 2A of the casing 2 has elasticity. Is closed by a soft cover member 3 made of a cloth material or the like having the following. This massage device 1
Can be used, for example, by placing the human body lying on his back on the back, waist, thighs or calves, or placing the sole of the foot on the massage mechanism 4 while sitting on a chair.

As shown in FIGS. 1 to 5, the roller massage mechanism 4 includes a support frame 8 having left and right support brackets 7, 7 arranged at a predetermined interval from each other, and a support frame 8 having the same. 8, both brackets 7, 7
Rotating shaft 1 rotatably held between bearings 9 via bearings 9
0, a pair of left and right rotors 12 and 13 provided in a middle part of the rotating shaft 10 at right angles to the axial direction and eccentric to the axial center, and driving means for rotatingly driving the rotating shaft 10. 14 is provided. Of these, both rotors 1
The bosses 2 and 13 are disposed at positions corresponding to the openings 2 </ b> A in the casing 2, and a boss 15 having a rotary shaft 10 inserted in the center thereof, and an outer periphery rotatably fitted around the boss 15. Massage rollers 16L and 16R, and a pressing plate 17 that applies frictional resistance to the relative rotation of the massage rollers 16L and 16R with respect to the boss 15.

A locking member 18 made of a steel ball is stored in a storage recess formed at each end of the boss 15 in the axial direction, and the rotation preventing member 17 is formed by a spline groove (not shown) formed on the rotary shaft 10. )). Therefore, the boss portion 15 is connected to the rotating shaft 10 so as to be movable in the axial direction and not to be relatively rotatable, and is configured to rotate integrally with the rotating shaft 10. Each rotor 1
Each of the boss portions 15 includes a concentric portion 15 </ b> A formed of a cylindrical body coaxial with the rotating shaft 10, and a plate orthogonal to the axial direction of the rotating shaft 10 and eccentric to the axis. The eccentric portion 15B is integrally provided, and the massage rollers 16L and 16R formed in a flat ring shape are rotatably fitted to the outer peripheral portion of the eccentric portion 15B via bearings 19.

For this reason, the left and right massage rollers 16
L and 16R are provided through the eccentric portion 15A of the boss portion 15,
The rotating shaft 10 is provided so as to be orthogonal to the axial direction of the rotating shaft 10 and eccentric with respect to the axial center, and is rotatably connected to the rotating shaft 10 so as to be movable in the axial direction. I have. The eccentric portion 15B of the boss 15 has
The pressing plate 17 having a diameter slightly larger than that of the eccentric portion 15B is fixed by screws, and the massage rollers 16L, 16
By pressing the surface of the central part of R, each roller 1
The frictional resistance is given to the relative rotation of the 6L and 16R with respect to the boss 15.

As shown in FIGS. 1 to 4, the rotating shaft 10
First shaft portion 10L supporting left massage roller 16L (rotor 12) and right massage roller 16R
(Rotor 13) and a second shaft 10R coaxially arranged with the first shaft 10L. Of these, the first shaft portion 10L has a mounting portion for the left rotor 12 and a penetrating portion for the driving means 14 in order from the left, and the second shaft portion 10R has a mounting portion for the right rotor 13. The two shaft portions 10L and 10R are connected to each other via a half-turn clutch mechanism 21 so as to be relatively rotatable. As shown in FIG. 6, the half-turn clutch mechanism 21 has a second shaft portion 10R.
Cylindrical member 2 fixed coaxially and non-rotatably to the end of
0, and a stopper pin 25 projecting radially outward from an end of the first shaft portion 10L which is coaxially and rotatably inserted into the cylindrical member 20.

The cylindrical member 20 has an insertion hole 2 extending in the axial direction.
2 having a driving means 14
A bearing 23 for rotatably holding the end of the first shaft portion 10L is provided on the opening edge on the side (the left side in FIG. 6). Further, a half-moon-shaped lateral groove 24 having a circumferential length corresponding to a half rotation is formed at an intermediate portion in the axial direction of the cylindrical member 20.
4 has a depth from the outer peripheral surface of the cylindrical member 20 to the insertion hole 22. On the other hand, the end of the first shaft portion 10L of the rotating shaft 10 is provided with the stopper pin 25 fixed so as to protrude radially outward by screwing of a set screw or the like. Are movably housed in the lateral groove 24 of the tubular member 20.

As is clear from the above, of the first and second shaft portions 10L and 10R constituting the rotating shaft 10, the first shaft portion 10L supporting the left rotor 12 constitutes the half-turn clutch mechanism 21. The second shaft portion 10 </ b> R supporting the right rotor 13 is fixed so as to be relatively non-rotatable with respect to the cylindrical member 20. Therefore, assuming that the first shaft portion 10L of the rotating shaft 10 is rotated in the normal rotation direction a by the driving means 14, the stopper pin 25 is
Abuts one of the radial groove surfaces 24a (see FIG. 6B), and the second shaft portion 10R causes the first shaft portion 10L to abut.
Together with the rotation direction a.

On the other hand, when the first shaft portion 10L is rotated in the reverse rotation direction b opposite to the above, the stopper pin 2
5 moves in the lateral groove 24 and comes into contact with the other radial groove surface 24b (see FIG. 6B) of the lateral groove 24, and by this contact, the second shaft portion 10R is rotated in the reverse direction together with the first shaft portion 10L. b
Will rotate together. And stopper pin 2
5 moves from one radial groove surface 24a to the other groove surface 24b, the right rotor 13 provided on the driven second shaft portion 10R is relatively positioned with respect to the left rotor 12. Will make a half turn.

As a result, in each of the massage rollers 16L, 16R of the left and right rotors 12, 13, the most protruding portions farthest from the rotary shaft 10 are at the same position in the circumferential direction around the axis of the rotary shaft 10. The pushing posture (the state shown in FIG. 1 or FIG. 3) and the single pushing posture (the state shown in FIG. 2 or FIG. 4) in which the most protruding portions are 180 degrees different from each other in the circumferential direction around the axis of the rotating shaft 10. Or you can.
Thus, the half-rotation clutch mechanism 21 constitutes a switching means 26 for switching the pair of left and right massage rollers 16L, 16R to one of the above two-sided pressing posture and one-sided pressing posture. For this reason, when the first shaft portion 10L is rotated in the normal rotation direction a, both massage rollers 16
L, 16R rotate in the state of one-sided pushing, and the roller 1
A massage operation in which 6L and 16R alternately advance and retreat with respect to the affected part is obtained, and when the first shaft part 10L is rotated in the reverse rotation direction b, both massage rollers 16L and 16R are rotated.
R rotates in the double-pressed state, and its rollers 16L, 1
The massage operation in which the 6R repeatedly advances and retreats to the affected part at the same time can be obtained.

As shown in FIG. 1 to FIG.
Includes a motor 31 and a speed reducer 32 that reduces the driving force of the motor 31 and transmits the reduced driving force to the rotating shaft 10 (first shaft portion 10L). The speed reducer 32 includes a gear case 29 in which a first shaft portion 10L of the rotating shaft 10 is rotatably inserted through a bearing 30, and a rotating shaft 1 in the gear case 29.
There is provided a worm wheel 34 fixed to the zero portion, and a worm 35 fixed to the output shaft of the motor 31 so as to mesh with the worm wheel 34. In the present embodiment, the motor 31 can be rotated forward and backward by an electric control circuit (not shown).
Can be switched between forward rotation and reverse rotation. The electric control circuit of the driving means 14 has a function of changing the rotation speed of the rotating shaft 10 in at least two steps. The speed change function may be performed stepwise or steplessly. In addition, the shift function may be performed mechanically (with a gear change or the like) other than the control circuit that electrically controls the motor 31.

Then, massage rollers 16L, 16R
In the case where is in the one-sided pushing posture (cases of FIGS. 2 and 4), when the rotation speed of the rotating shaft 10 is relatively low, the rollers 16L and 16R alternately slowly advance and retreat alternately. Alternating acupressure massage is performed to feel that the affected part is acupressure alternately from left and right. Further, when the massage rollers 16L and 16R are in the double-pressing posture (in the case of FIGS. 1 and 3) and the rotation speed of the rotating shaft 10 is relatively low, the rollers 16L and 16R move forward and backward slowly at the same time. Since the repetition is performed, a simultaneous acupressure massage is performed, which has a feeling of simultaneously acupressure the affected area.

In order to perform such acupressure massage, the rotation speed of the rotating shaft 10 may be set to about 50 rpm. On the other hand, massage rollers 16L and 16R
When the rotational speed of the rotating shaft 10 is relatively high in the case where the roller is in a one-sided pushing posture (in the case of FIGS. 2 and 4), the outer peripheral portions of the rollers 16L and 16R alternately advance and retreat alternately at a high speed. As a result, an alternating tapping massage is performed, which feels as if the affected part is alternately hit from the left and right.

When the rotating speed of the rotating shaft 10 is relatively high when the massage rollers 16L and 16R are in the double pushing posture (FIGS. 1 and 3), the outer peripheral portions of the two rollers 16L and 16R However, simultaneous impact massage is performed as if the subject repeatedly hits the affected part at a high speed and impacts the affected part at the same time. In order to perform such a tapping massage, the rotation speed of the rotating shaft 10 may be set to approximately 150 rpm or more, and particularly, if it is set to 200 rpm, a suitable tapping feeling can be obtained.

By the way, each massage roller 16L, 1
When the rotating shaft 10 is rotated in a state where the outer peripheral portion of the 6R is in contact with the affected part, only the massage roller 16R of the second shaft portion 10R on the driven side is instantaneously rotated, and a proper massage operation cannot be performed. There is fear. That is, in the roller massage mechanism 4 of the present embodiment, since the rotating shaft 10 is divided into the first shaft portion 10L and the second shaft portion 10R and connected therebetween by the half-turn clutch mechanism 21, If the relative rotation between the first shaft portion 10L and the second shaft portion 10R is performed too freely, the right massage roller 16R
The second shaft portion 10R on the driven side by the pressure received from the affected part
Rotates relative to the drive-side first shaft portion 10L without permission,
There is a case where both the massage rollers 16L and 16R rotate in a state where the double pressing posture or the single pressing posture is instantaneously collapsed, and a proper massage operation is not performed.

Therefore, in this embodiment, both shaft portions 10L,
Holding means 39 is provided for holding the massage rollers 16L, 16R in a double-pressing posture or a single-pressing posture by suppressing the relative rotation between the 10Rs by friction. As shown in FIG. 6, the holding means 39 comprises a brake member 38 for applying frictional resistance to the relative rotation between the two shaft portions 10L and 10R. The brake member 38 has a base end portion at the first shaft portion 10L.
The brake cylinder 37 is fixed coaxially and non-rotatably, and has an inner peripheral surface slidably in contact with the cylinder member 20 of the half-turn clutch mechanism 21.

As described above, in the present embodiment, while the brake action by the friction is applied to the relative rotation between the first shaft portion 10L and the cylinder member 20 by the brake cylinder 37, the relative rotation between the two is allowed. Have been. The base end of the brake cylinder 37 is fixed to the coaxial portion 10L by a stop pin 37B driven into the first shaft portion 10L in the radial direction. In this case, even when the massage roller 16R supported by the driven second shaft portion 10R receives pressure from the affected part during massaging of the affected part, the braking action by the brake cylinder 37 causes the driven side shaft part. 10
R is unexpectedly rotated relative to each other to prevent instantaneous collapse of the double pressing posture or the single pressing posture.
Good massage can be performed in a state where L and 16R are maintained in the appropriate double-pressing posture or single-pressing posture.

Thus, the relative rotation between the two shaft portions 10L and 10R, which have been switched by the switching means 26, is suppressed by friction by the brake member 38 composed of the brake cylinder 37, so that the two massage rollers 16L and 16R are controlled.
Holding means 39 for holding R in a double-pressing position or a single-pressing position
Is configured. The brake member 38 only needs to apply frictional resistance to the relative rotation between the two shaft portions 10 </ b> L and 10 </ b> R.
A rubber shoe interposed between the inner peripheral surface of the first shaft portion 10L and the end of the first shaft portion 10L may be used.

As shown in FIG. 6, a rubber shoe 40 for increasing the frictional resistance between the cylinder member 20 and the brake cylinder 37 can be interposed. In this case, an appropriate rotation resistance can be given to the relative rotation between the first shaft portion 10L and the second shaft portion 10R by the rubber shoe 40, and the posture holding function of the left and right massage rollers 16L, 16R is more reliably performed. Can be expected. FIG. 7 shows a half-turn clutch mechanism 21 employing a switching means 26 and a holding means 39 different from those in FIG.

As shown in FIG. 7, the half-turn clutch mechanism 21 in this case has a first clutch body 81 fixed to the end of the first shaft 10L and a half-turn clutch to the end of the second shaft 10R. The second clutch body 82 is inserted rotatably and axially movable in the range described above and detachably meshes with the first clutch body 81, and the second clutch body 82 when the rotation shaft 10 rotates forward or reverse. The cam means 8 which is once disengaged from the first clutch body 81 and then meshes with the clutch body again.
3 is provided. The first and second clutch bodies 8
Each of the first and second clutch teeth 84 is formed in a shape in which the concave portion 85A and the convex portion 85B are interchanged in a range divided into four in the circumferential direction around the axis. The second clutch body 82 meshes with each other at two positions 180 degrees apart in the circumferential direction around the axis.

On the other hand, the cam means 83 is connected to the second clutch body 8
A cam hole 86 formed in the outer peripheral wall portion 2 in the shape of “
Cam pin 8 driven into the end of second shaft portion 10R in the radial direction
The projecting end of the cam pin 87 is movably housed in the cam hole 86. As shown in FIG. 7, the cam hole 87 in the shape of “<” is located at the center bent portion on the first clutch body 81 side (left side in FIG. 7), and both ends are located at the first clutch body 81. It is arranged on the outer peripheral wall of the second clutch body 82 so as to be located on the opposite side (the right side in FIG. 7) from the body 81.

Further, the second clutch body 82 is
It is always urged toward the first clutch body 81 side by an urging spring 88 externally fitted to 0R. In the case of the half-turn clutch mechanism 21 shown in FIG. 7, when the rotating shaft 10 which is normally rotating in the direction of arrow a in FIG. The second clutch body 82 moves to the opposite side of the first clutch body 81 along the cam hole 86 and is disengaged from the first clutch body 81 once. Returning to the body 81 side, the clutch body 81 is engaged again.

When the rotating shaft 10 rotating in the direction of the arrow b in FIG. 7 rotates forward in the direction of the arrow a, the second clutch body 82 is once disengaged from the first clutch body 81 in the same manner as described above. After that, the first clutch body 81 is engaged again. The two clutch bodies 81,
Since the clutch teeth 84 of the 82 are meshed with each other at two positions 180 degrees apart in the circumferential direction, the relative positions of the two shaft portions 10L and 10R after the switching of the inclination direction of the massage rollers 16L and 16R is completed. The rotation is almost completely regulated by the clutch teeth 84.

That is, in the half-turn clutch mechanism 21 shown in FIG. 7, the meshing position is 1 in the circumferential direction around the axis.
Both clutch bodies 8 so that they are at two positions 80 degrees apart
The clutch teeth 84 formed at the meshing portions of the shaft members 1 and 82 constitute holding means 39 for restricting the relative rotation between the two shaft portions 10L and 10R. Therefore, in this case, the brake cylinder shown in FIG. There is no need for a member such as 37 or a rubber shoe 40 that imparts frictional resistance to relative rotation between the two shaft portions 10L and 10R. As shown in FIG. 1 to FIG. 4, the roller massage mechanism 4 of the present embodiment further includes a pair of left and right massage rollers 16 </ b> L and 16 </ b> R that move toward and away from each other during the operation of the driving unit 14. Second driving means 4 capable of reciprocating the rollers 16L, 16R along the axial direction of the rotating shaft 10.
1 (reciprocating means).

The second drive means 41 comprises a pair of left and right sliders 42, 42 for rotatably supporting the bosses 15 of the massage rollers 16L, 16R, and
A pair of left and right rotating bodies 43, 43 for reciprocating the shafts 2, 42 in the axial direction of the rotating shaft 10, a gear mechanism 44 interlocked with the rotating bodies 43, 43, and rotationally drive the gear mechanism 44. And an electric motor 45. Of these, a concentric portion 15A of the boss 15 of the rotors 12, 13 is inserted through the center of the slider 42 via a bearing 46 so as to be rotatable and immovable in the axial direction.
In the lower portion of the slider 42, a cam groove 47 which is long in a direction orthogonal to the axial direction of the rotating shaft 10 (the direction penetrating the plane of FIG. 1).
A cam pin 48 protruding from the tip of the rotating body 43 is engaged with the cam groove 47.

Therefore, when the rotating bodies 43, 43 rotate in the opposite directions, the sliders 42 approach or move away from each other along the axial direction, and reciprocate in the opposite direction along the axial direction of the rotating shaft 10. It works. The gear mechanism 44
Housing 8A constituting bottom plate of support frame 8
A worm 49 provided on the output shaft of the motor 45 fixed to the housing 8A, a pair of first worm wheels 50, 50 meshing with the worm 49 from both left and right sides, Worm wheel 5
A pair of second worm wheels 51,
51.

Then, each second worm wheel 51, 5
One support shaft is connected to the base end of each of the rotating bodies 43, 43, whereby the rotational force of the motor 45 is transmitted to the two rotating bodies 43, 43 via the respective worm wheels 50, 51, and The two rotating bodies 43 can be rotated at the same speed in different directions. As shown in FIG. 5, cover plates 5 covering the outer regions of the massage rollers 16L, 16R are provided on the upper ends of the sliders 42, 42, respectively.
7, 57 are fixed so that the hands and fingers can be
L and 16R are prevented from being drawn.

Further, the second drive means 41 is not limited to the above-mentioned structure, and may employ, for example, a screw shaft type shown in FIG. That is, FIG. 8 shows the roller massage mechanism 4 employing the second driving means 41 different from the case of FIGS. 1 to 4. In this case, the driving means 41 includes the sliders 42 and 42 A feed screw shaft which is provided in parallel with the rotating shaft 10 so as to penetrate the sliders 42, and has reciprocating screw portions 52, 52 at both ends in the axial direction for reciprocating the sliders 42, 42 along the axial direction. 53
And an electric motor 54 for driving the feed screw shaft 53 to rotate.

The feed screw shaft 53 is rotatably housed in a housing 8A constituting a bottom plate of the support frame 8, and is provided on a drive shaft of an electric motor 54.
A gear portion 56 with which the gear 5 meshes is provided at the center. For this reason, when the motor 54 is driven to rotate the feed screw shaft 53, the reciprocating screw portions 52, 52 formed at both ends of the feed screw shaft 53 cause the sliders 42, 42 to move toward or away from each other in the axial direction. It reciprocates in the direction.
Next, the operation of the massage device 1 having the roller massage mechanism 4 will be described.

That is, in the massage device 1 having the above configuration, when the rotating shaft 10 is rotated in the normal rotation direction,
As shown in FIG. 2 or FIG. 4, the massage rollers 16L and 16R of the rotors 12 and 13 rotate in a single-pushed posture in which the most protruding portions are shifted by 180 degrees.
The outer peripheral portions of L and 16R alternately advance and retreat with respect to the affected part. At this time, when the rotation speed of the rotating shaft 10 is adjusted to a relatively low speed (around 50 rpm), an alternating acupressure massage is performed in which the rollers 16L and 16R alternately and slowly press the affected part, and the rotation speeds of the rotating shaft 10 are compared. When the speed is adjusted to a target high speed (150 rpm or more), an alternating tapping massage is performed in which the rollers 16L and 16R alternately apply an impact to the affected part.

On the other hand, when the rotating shaft 10 is rotated in the reverse direction, as shown in FIG. 1 or FIG. 3, the massage rollers 16L and 16R of both rotors 12 and 13 are brought into a state where their most protruding portions are aligned. It rotates in the attitude, and its rollers 16L,
The outer periphery of the 16R repeatedly enters and exits the affected part at the same time. At this time, if the rotation speed of the rotating shaft 10 is adjusted to a relatively low speed (around 50 rpm), both rollers 1
Simultaneous acupressure massage in which 6L and 16R simultaneously and slowly press the affected area is performed, and when the rotation speed of the rotating shaft 10 is adjusted to a relatively high speed (150 rpm or more), both rollers 16
A simultaneous tapping massage in which L and 16R simultaneously apply an impact to the affected area is performed.

As described above, according to the massage device 1 of the present embodiment, by simply rotating the motor 31 of the driving means 14 in the normal direction or the reverse direction to switch the rotation direction of the rotary shaft 10, the left and right alternate finger pressure or hit massage can be performed. It is possible to switch between the left and right simultaneous acupressure or tapping massage. Also,
By simply changing the rotation speed of the rotating shaft 10, switching between acupressure massage and tapping massage can be performed. In the present embodiment, a pair of left and right massage rollers 1
Since 6L and 16R are orthogonal to the axial direction, when the second drive means 41 is stopped to fix the rotors 12 and 13 in the axial direction, each roller 16L is fixed. , 16R move back and forth with respect to the diseased part without swinging in the left-right direction (axial direction of the rotating shaft 10). For this reason, it is possible to intensively apply acupressure or a blow to a specific stiff affected area.

On the other hand, when the motor 45 of the second drive means 41 is operated, the sliders 42, 42 rotatably connected to the rotors 12, 13 reciprocate in the axial direction, and the rotors 12, 13 are reciprocated. Will repeatedly approach or leave. For this reason, when the rotation speed of the rotating shaft 10 is relatively low, the massage rollers 16L, 16 performing the above-described acupressure movement (including both the simultaneous acupressure and the alternate acupressure).
R reciprocates in the axial direction to perform kneading, and massage in which acupressure and kneading are performed in parallel is performed. When the rotation speed of the rotating shaft 10 is relatively high, the massage rollers 16L and 16R performing the above-described striking motion (including both simultaneous striking and alternate striking) reciprocate in the axial direction. To do
A hit massage is performed while changing the hit position. However, if the second drive means 41 is temporarily operated, the interval between the massage rollers 16L and 16R can be adjusted.

Further, in the present embodiment, when performing the above-mentioned acupressure or tapping massage, the holding means 39 suppresses or regulates the relative rotation between the two shaft portions 10L, 10R to move both massage rollers 16L, 16R. Since the pushing posture or the one-side pushing posture is maintained, even when the massage roller 16R supported by the driven shaft 10R receives pressure from the affected part when performing massage on the affected part, the driven side shaft 10R is It is possible to prevent the two-sided pressing posture or the one-sided pressing posture from suddenly collapsing due to the relative rotation. For this reason, according to the massage device 1 of the present embodiment, in a state where both the massage rollers 16L and 16R are maintained in an appropriate double-pushed posture or a single-pushed posture, a good acupressure massage or a tapping massage or the rollers 16L and 16R are applied. Massage with reciprocating motion of can be performed.

FIG. 10 shows a second embodiment of the present invention. The massage device of this embodiment has a hand-held casing 77 having an opening 75 opening on the front side (upper side in FIG. 10) and having hand-held portions 76 on both left and right sides,
A hand-held massage device 78 including the roller massage mechanism 4 housed in the casing 77. The casing 77 in this case is provided with a pair of left and right openings 75, 75 on the upper surface side. The left and right massage rollers 16L, 16R are housed in the openings 75, 75, respectively, and project to the upper surface side of the casing 77. I have. Note that the cover member 3 is separated into left and right sides to close each of the openings 75.

The hand-held portion 76 is composed of a cylindrical portion integrally formed on the left and right sides of the casing 77, and the back can be massaged by holding the cylindrical portion with both hands and pressing against the back of another person. . Further, the massage device 78 of the present embodiment can be placed on a floor or the like with the massage roller facing upward as shown in FIG. 10, so that it can be used as a small placement-type massage device. Can be. 11 to 14 show a third embodiment of the present invention.

The massage device 61 of this embodiment has a longitudinal dimension substantially corresponding to the back region of the human body, and can stand against the wall surface W with its back surface facing the wall surface W side. Single casing 62
And the casing 62
The roller massage mechanism 4 is provided therein so as to be vertically movable. The casing 62 in this case is formed in a flat vertically long box shape having a vertically long opening 63 that opens to the front surface side, and as shown in FIG. The wall surface W of the backrest of the chair 64 as shown in FIG.
You can lean against.

As described above, since the casing 62 is formed in a flat vertically long box shape capable of leaning against the wall surface W,
As shown in FIGS. 13 and 14, by using the device by leaning against the wall surface W, the back can be massaged over a wide area in the same manner as in the case of the chair-type massage device 91 described later. On the other hand, unlike the chair type massage device 91, the casing 62 is formed in a flat, vertically long box shape, so that it can be stored in a narrow place such as a corner of a room or between furniture when not needed. Thus, a compact massage device having substantially the same function as the chair-type massage device 91 can be obtained at low cost.

As shown in FIG. 12, a moving means 65 for moving the roller massage mechanism 4 in the vertical direction is provided inside the casing 62. The moving means 65 includes a pair of left and right guide rails 66 disposed on both sides in the width direction of the casing 2, and guide rollers disposed at four corners of the support frame 8 of the massage mechanism 4 and rotatably fitted on the guide rails 66. 67, a feed screw shaft 69 inserted through a screw cylinder 68 fixed to the support frame 8
And a movement motor 70 for driving the feed screw shaft 69.
And

The feed screw shaft 69 is supported at a substantially central portion of the casing 61 so as to be rotatable and immovable in the axial direction. The screw cylinder 68 is screwed to an outer peripheral portion of the feed screw shaft 69. Therefore, when the feed screw shaft 69 is rotated by the moving motor 70, the support frame 8 moves up and down along the guide rail 66 via the screw cylinder 68, thereby changing the massage position by the massage rollers 16L and 16R. I can do it. In addition, at the upper and lower ends of the guide rail 66, limit switches 71 for detecting the vertical movement limit of the massage mechanism 4 are provided. Further, a guide shaft 73 around which the electric wire 72 of the motor 31 of the massage mechanism 4 is spirally wound is fixed to the left side of the left guide rail 66. Therefore, when the massage mechanism 4 repeatedly moves up and down, the electric wires 7
Even if the cable 2 is loosened in the casing 2, a disconnection failure caused by the loose wire 72 entering an unexpected direction can be prevented beforehand.

In this embodiment, since the massage motor 31 is projected to the opposite side (upper side in FIG. 12) of the moving motor 70, a dead space for avoiding interference between these two motors 31, 70 is provided. There is an advantage that the vertical dimension of the casing 62 can be made compact. FIG. 15 and FIG. 16 show a fourth embodiment of the present invention. The massage device of this embodiment includes a seat portion 92, a backrest portion 93 erected at the rear end of the seat portion 92, and a pair of left and right massage rollers 16.
The roller massage mechanism 4 housed inside the backrest 93 such that the L, 16R is located at the center in the width direction.
And a chair-type massage device 91 having:

The massage device 91 shown in FIG. 15 is of a chair type in which a flat seat portion 92 is directly placed on the floor, and the massage device 91 shown in FIG. It is a normal chair type connected. Also,
In the case of the massage device 91 of FIG. 16, the footrest 9 having the function of massaging both feet is provided at the front end of the seat portion 92.
5 are provided. Also, when the roller massage mechanism 4 is incorporated in the backrest 93 of the chair-type massage device 91, if a moving means for moving the mechanism 4 in the vertical direction is provided, the roller massage mechanism 4 can be moved from the neck or shoulder. Massage can be performed over a wide area over the waist.

Each embodiment described in the present specification is an exemplification of the present invention, and is not intended to limit the interpretation. That is, the scope of the present invention is defined by the claims set forth below, and all modifications and equivalents of the claims included in the claims are included in the present invention. For example, as a structure for switching the posture of the massage roller 16, first and second shaft portions 10L,
Although the one in which the 10Rs are connected by the half-turn clutch mechanism 21 has been described, other mechanical switching structures, electromagnetic clutch mechanisms, or manual switching mechanisms may be employed.

The shape of the massage roller 16 can be changed in various ways as long as the whole shape is substantially a disk shape. The shape of the massage roller 16 is not limited to a simple disk shape, but may be an elliptic plate shape or a polygonal plate shape. Can also be adopted. Furthermore, the massage mechanism 4 of the present invention can be incorporated in a bed-type massage device.

[0064]

As described above, according to the present invention,
A pair of left and right massage rollers can intensively acupressure or hit a specific stiff affected part, so that the massage effect can be improved, and simultaneous acupressure or percussion massage and alternate acupressure or percussion massage on symmetric affected parts can be achieved. Can be performed, so that the variation of the acupressure or the percussion massage can be expanded.

[Brief description of the drawings]

FIG. 1 is a front cross-sectional view of a roller massage mechanism, showing a state in which both massage rollers are in a double-pressing posture and are closest to each other.

FIG. 2 is a front cross-sectional view of the roller massage mechanism, showing a state where both massage rollers are in a single-pressing posture and are closest to each other.

FIG. 3 is a front cross-sectional view of the roller massage mechanism, showing a state in which both massage rollers are in a double-pressed posture and are most separated.

FIG. 4 is a front cross-sectional view of the roller massage mechanism, showing a state where both massage rollers are in a single-pressing posture and are most separated from each other.

FIG. 5 is a plan view of a roller massage mechanism.

FIG. 6A is an enlarged sectional view of a half-turn clutch mechanism and holding means, and FIG. 6B is a sectional view taken along line AA of FIG.

FIG. 7 is an enlarged front view showing a modification of the half-turn clutch mechanism.

FIG. 8 is a front sectional view of a roller massage mechanism for showing a modification of the second driving means.

FIG. 9 is a perspective view of a small placement type massage device.

FIG. 10 is a perspective view of a hand-held massage device.

FIG. 11 is a perspective view of a leaning type massage device.

FIG. 12 is a front view showing the internal structure of the leaning type massage device.

FIG. 13 is a side view showing an example of a use state of the leaning type massage device.

FIG. 14 is a side view showing an example of a use state of the leaning type massage device.

FIG. 15 is a perspective view of a chair-type massage device of a chair type.

FIG. 16 is a perspective view of a chair-type massage device of a normal chair type.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Placement type massage apparatus 2 Casing 2A Opening 4 Roller massage mechanism 10 Rotating shaft 10L First shaft 10R Second shaft 14 Driving means 16L Massage roller (left) 16R Massage roller (right) 20 Tube member 21 Half-turn clutch Mechanism 24 Lateral groove 25 Stopper pin 26 Switching means 37 Brake cylinder 38 Brake member 39 Holding means 40 Rubber shoe 61 Leaning type massage device 62 Casing 63 Opening 65 Moving means 75 Opening 76 Hand holding portion 77 Casing 78 Hand held massage device 81 First clutch body 82 Second clutch body 83 Cam means 84 Clutch teeth 91 Chair-type massage device 92 Seat 93 Backrest

Claims (16)

[Claims] 1. A rotating shaft (10), and a pair of left and right massage rollers (16L) provided at an intermediate portion of the rotating shaft (10) so as to be orthogonal to the axial direction and eccentric to the axial center. , 16R), and driving means (14) for driving the rotation shaft (10) to rotate.
A double-pressing posture in which the most protruding portions of the pair of left and right massage rollers (16L, 16R) farthest from the rotation shaft (10) are at the same position in the circumferential direction around the axis of the rotation shaft (10). And a switching means (26) for switching between the most protruding portions and a one-sided pushing posture in which the most protruding portions are different from each other by 180 degrees in a circumferential direction around the axis of the rotating shaft (10). mechanism. 2. The roller massage mechanism according to claim 1, wherein the rotating shaft (10) is connected to one of the massage rollers (16).
L) and a first shaft portion (10L) supporting the other massage roller (16R) and supporting the first shaft portion (10L).
L) and a second shaft portion (10R) arranged coaxially, and the driving means (14) is provided with the first shaft portion (10R).
L) has a function of rotating forward or reverse, and the switching means (26) is provided with the first shaft portion (10L).
And a half-turn clutch mechanism (21) for restricting the range in which the second shaft portion (10R) rotates relative to each other to substantially half a turn. 3. The roller massage mechanism according to claim 2, wherein the mechanism further controls the relative rotation between the two shaft portions (10L, 10R) which have been switched by the switching means (26). A holding means (39) is provided for holding or restricting and holding the massage rollers (16L, 16R) in a double pressing posture or a single pressing posture. 4. The roller massage mechanism according to claim 3, wherein the half-turn clutch mechanism (21) includes the second shaft portion (1).
A tubular member (20) which is coaxially fixed to the end of the outer periphery of the tubular member (0R) and is non-rotatably provided and has a lateral groove (24) having a circumferential length corresponding to a half turn on the outer peripheral portion; The first shaft portion (10L), which is coaxially and rotatably inserted into (20), protrudes radially outward from an end of the first shaft (10L), and the protruding end is housed in the lateral groove (24). And a stopper pin (25). 5. The roller massage mechanism according to claim 3, wherein the holding means comprises a brake member for applying a frictional resistance to the relative rotation between the two shaft portions. . 6. The roller massage mechanism according to claim 5, wherein a base end of the brake member (38) is fixed coaxially and non-rotatably to the first shaft (10L), and A brake cylinder body (38) having an inner peripheral surface slidably in contact with the cylinder member (21) of the half-turn clutch mechanism (21);
Consisting of 7. The roller massage mechanism according to claim 6, wherein a rubber shoe (4) is provided between the cylinder member (20) and the brake cylinder body (38) to increase frictional resistance therebetween.
0) is interposed. 8. The roller massage mechanism according to claim 3, wherein the half-turn clutch mechanism (21) includes the first shaft part (1).
0L) and a first clutch body (81) fixed to an end of the second shaft (10R). A second clutch body (82) detachably engaged with one clutch body (81); and a second clutch body (82) which is firstly rotated by the rotation shaft (10) forward or reverse. ), And a cam means (83) which is engaged with the clutch body (81) again. 9. The roller massage mechanism according to claim 8, wherein the holding means (39) includes the two clutch bodies (81, 8).
2) The engagement position is 1 in the circumferential direction around the axis.
The clutch teeth (84) are formed at the engaging portions of the two clutch bodies (81, 82) so as to be at two positions separated by 80 degrees. 10. The roller massage mechanism according to claim 1, wherein the driving means (14) has a function of changing the rotation speed of the rotation shaft (10) in at least two stages. . 11. A mounting type casing (2) having an opening (2A) opening upward, and the casing such that the pair of left and right massage rollers (16L, 16R) correspond to the opening (2A). A mounting type massage device comprising: the roller massage mechanism (4) according to any one of claims 1 to 10 housed in (2). 12. A hand-held casing (77) having an opening (75) opening on the front side and having hand-held portions (76) on both left and right sides, and the pair of left and right massage rollers (16L, 16R). The roller massage mechanism (4) according to any one of claims 1 to 10, which is housed in the casing (77) so as to correspond to the opening (75). 13. An independent unit having a longitudinal dimension substantially corresponding to a back region of a human body and capable of leaning against the wall surface (W) with the back surface facing the wall surface (W). And a pair of left and right massage rollers (16L, 16R) corresponding to the opening (63). A leaning type massage device comprising: the roller massage mechanism (4) according to any one of claims 1 to 10 housed in the casing (62) so as to perform the operation. 14. The massage device according to claim 13, further comprising a moving means (65) for moving the roller massage mechanism (4) in a vertical direction. 15. A seat (92), and a backrest (9) erected at the rear end of the seat (92).
3) and the pair of left and right massage rollers (16L, 16R) are housed inside the backrest (93) so as to correspond to the center in the width direction of the backrest (93). 1
A roller massage mechanism (4) according to any one of claims 1 to 5, and a chair-type massage device comprising: 16. The massage device according to claim 15, further comprising a moving unit that moves the roller massage mechanism (4) in a vertical direction.