JPH08299400A - Massage unit - Google Patents

Abstract

PURPOSE: To facilitate the fixation of swingable members to a rotary shaft and to simultaneously prevent noise and vibration due to a gap caused by the fixation, by spring-energizing a pair of swingable members in a direction in which they are moved away from each other along the rotary shaft, at a maximum allowable distance therebetween. CONSTITUTION: Sliders 33, 34 are fitted on a rotary shaft 16 so as to be axially movable, and bearings 31, 32 are fixed to the sliders 33, 34 on the sides near to each other, being inclined at a predetermined angle. Swash cams 18, 19 are fixed to the outer rings of the bearings 31, 32, respectively, so as to be coaxial therewith. With this arrangement, the cams 18, 19 are oscillated by the rotation of the rotary shaft 16, axially of the latter. A spring 20 is inserted on the shaft 16 between the bearings 31, 32 which are therefore energized in opposite directions. With this arrangement, the cams 18, 19 are oscillated in association with the rotation of the rotary shaft 16, and are reciprocated along the rotary shaft 16 due to the energizing force of the spring 20 so as to take elliptic motion for massage operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair-shaped massaging machine.

[0002]

2. Description of the Related Art In a chair-shaped massaging machine, a drive mechanism for performing a massaging operation is housed in a backrest portion of a chair. The drive mechanism is provided with a pair of massaging elements, and by driving a motor arranged in the driving mechanism, the massaging elements swing so that a massaging operation such as a kneading operation or a tapping operation is performed. . Further, in order to perform the massage operation at a desired position of the person sitting on the chair, the backrest portion of the chair is provided with an elevating mechanism for elevating the drive mechanism. Further, an adjusting mechanism for adjusting the distance between the pair of massagers is provided.

As an example of a drive mechanism for such a massage machine, one having the following configuration is considered. In the drive mechanism, a pair of swash plate cams having hexagonal tubular insertion holes are inserted through the first shaft through the insertion holes through the hexagonal columnar first shaft that is rotated by the first motor in order to perform a rubbing operation. Each swash plate cam is equipped with a massager via an arm. The rotation of the first shaft causes the swash plate cam to swing, which causes the pair of massaging elements to perform a massaging operation. The other ends of the pair of swash plate cams are attached to an eccentric cam, and the eccentric cam is attached to the second shaft. When the second shaft is rotationally driven by the second motor, the other ends of the pair of swash plate cams move up and down. As a result, the massager attached to one end of the swash plate cam moves up and down to perform a striking operation.

Further, a moving member is provided integrally with each of the swash plate cams, and an inner screw is formed at one end of the moving member. A third shaft, which is formed as a screw shaft in which outer screws in opposite directions are formed, is inserted into the inner screw of each moving member. By rotating the third shaft in either one of the two directions by the third motor, the respective moving members move away from each other or in the approaching direction. Thereby, the distance between the pair of massagers is adjusted, and the distance between the massage positions can be adjusted. Further, a fourth shaft supported by the frame of the drive mechanism is provided, and pinions are attached to both ends of the fourth shaft. On the other hand, a rack is provided on the backrest of the chair, and the pinion is engaged with the rack. The drive mechanism is driven up and down by the backrest portion of the chair by rotationally driving the fourth shaft in either one of the two directions by the fourth motor. As a result, the massage position can be adjusted up and down.

[0005]

In the massaging machine having the above-mentioned structure, since the first shaft of the hexagonal column shape is inserted into the swash plate cam, the first shaft and the pair of swash plate cams through which the first shaft is inserted are formed. There is some gap between them. When the massaging operation is performed, the swash plate cam oscillates, so that the first shaft and the swash plate cam rattle due to the gap, which causes noise or vibration. If the noise or vibration is generated, it is uncomfortable for the user, and there is a problem that the operation quality is deteriorated by such noise or vibration.

Further, in the conventional massaging machine, a massaging machine in which the width adjusting function of each rocking member related to the third motor is deleted in order to reduce the cost can be considered. In this case, it is necessary to fix each eccentric cam attached to the second shaft to the second shaft so as not to swing with respect to the second shaft. This is for the following reason. If each eccentric cam is swingable with respect to the second shaft, each eccentric cam swings when the pair of massaging elements squeezes and narrows, whereby the swing members connected to each eccentric cam expand. Or, when the pair of massaging elements spreads by kneading, the space between the rocking members may narrow. This is because in such a case, there occurs a problem that the swinging motion of the pair of massaging elements is not realized.

Further, in the conventional massaging machine, the third shaft,
There is some clearance between each swing member attached to the third shaft. Therefore, when the rubbing operation or the hitting operation is performed, noise and vibration are generated. For this reason, conventionally, a spring is provided only for the purpose of preventing the generation of noise and vibration, and there is a problem that the number of parts is increased.

The invention of claim 1 has been made to solve the above-mentioned technical problem, and an object thereof is to easily fix each swinging member to a rotary shaft and to prevent noise due to a gap accompanying the fixing. The purpose of the present invention is to provide a high-quality massaging machine which prevents vibration, reduces the number of parts, and has improved quietness.

[0009]

A massaging machine according to a first aspect of the present invention includes a pair of rocking members each having a pair of massaging members attached to each end for performing a massaging operation, and the rocking members. Is disposed between the rotating shaft and the pair of swinging members, and the pair of swinging members are spring-biased in the mutually separating directions between the maximum separating positions along the direction in which the swinging members are separated from each other. And a spring which is provided, whereby the above object can be achieved.

[0010]

According to the first aspect of the present invention, in order to perform the abrading operation, when the rotary shaft rotates, the pair of swing members mounted on the rotary shaft swing, and the pair of swing members mounted on the swing member. The massager oscillates, and the massage operation is performed. The swinging swinging members are spring-biased in a mutually separating direction by a spring between maximum separating positions along a direction in which the rotating members are separated from each other. The swing member is fixed to the rotation shaft by the force of this spring. Thereby, each swing member is easily fixed to the rotation shaft. Therefore, even if there is a gap between the rocking member and the rotary shaft, the rocking member is prevented from rattling with respect to the rotary shaft and noise or vibration is prevented. As a result, a high-quality massaging machine with improved quietness is realized when performing the massaging operation.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing a cross section of a motion converting mechanism used for a massaging operation of a massaging machine according to an embodiment of the present invention.
2 is a side view of the motion conversion mechanism, FIG. 3 is a perspective view of the motion conversion mechanism, FIG. 4 is a front view of the drive mechanism, and FIG. 5 is a sectional view of the massaging machine 1 of the present embodiment. FIG. 5 is a block diagram illustrating the electrical configuration of the massaging machine 1.

An example of the entire structure of the massaging machine 1 according to this embodiment will be described below with reference to FIG. As shown in FIG. 5, in the massaging machine 1, the rack 4 is fixed inside the backrest portion 3 of the chair 2, and the pair of pinions 6a and 6b provided in the drive mechanism 5 that performs the massaging operation is the rack. It is meshed with 4. As an example for raising and lowering the drive mechanism 5 provided in the drive mechanism 5, the rotation of a DC brushless motor (hereinafter, referred to as a motor) 7 is rotated through a power transmission mechanism 8 using a helical gear, a worm gear, or the like. 5, the rotation axis direction is converted from the left-right direction in FIG. 5 to the direction perpendicular to the paper surface of the figure, and is transmitted to the rotation shaft 9. By rotating the rotating shaft 9 in either one of the two directions by the motor 7, the pinions 6a, 6b rotate, and the pinion 6a,
The drive mechanism 5 is driven up and down on the backrest portion 3 of the chair 2 by the engagement between the rack 6 and the rack 6b.

When the drive mechanism 5 is attached to the backrest portion 3 of the chair 2, the pair of massaging elements 10a, 10b are exposed to the back of the person leaning on the chair 2. Rubbing 1
0a and 10b are connected to a motor 11 provided in the drive mechanism 5 via a motion conversion mechanism 12, and the rotational motion of the motor 11 is converted by the motion conversion mechanism 12 into the rocking motion of the massaging rollers 10a and 10b. A massage operation such as a kneading operation is performed on the back, neck, or shoulder of the person leaning on the chair 2 by the massagers 10a and 10b. The upper portion of the rack 4 is slightly bent so that it fits into the curved surface of the back of the person such as the neck or shoulder of the person who leans on the backrest portion 3 of the chair 2. Also,
The rack 4 is configured to be bendable at a lower end portion of the backrest portion 3 of the chair 2 by a pivoting portion 13 such as a hinge, and is configured to be able to follow a reclining operation of the backrest portion 3 of the chair 2.

Hereinafter, a structural example of the drive mechanism 5 including the operation conversion mechanism 12 of the massaging machine 1 will be described with reference to FIGS. 3 and 4. In the drive mechanism 5, the rotary shafts 9 and 16 and the support shaft 17 are attached between a pair of frames 14 and 15 which are parallel to each other. The rotary shaft 9 is rotationally driven by the rotation of the motor 7 via the power transmission mechanism 8, and the rotary shaft 16 is rotationally driven by the rotation of the motor 11 via the power transmission mechanism 28. The rotary shaft 16 is
A hexagonal columnar shape is formed between the frames 14 and 15, and a pair of swash plate cams 18 and 19 are attached to this portion.
A spring 20 is arranged between the swash plate cams 18 and 19 and biases the swash plate cams 18 and 19 in a direction to separate them from each other. The ends of the swash plate cams 18 and 19 on the front side are connected to the massager 10 via arms 21 and 22 that are bent in a crank shape.
a and 10b are attached respectively.

The arms 21, 2 of the swash plate cams 18, 19
The rods 23, 24 are provided at the rear end opposite to 2
One end of each of the rods 23 and 24 is fixed, and bearing bands 25 and 26 made of synthetic resin are fixed to the other ends of the rods 23 and 24, respectively. Each bearing band 25, 26
Are attached to the support shaft 17 so as to be swingable as will be described later. A spring 27 is arranged between the bearing bands 25 and 26 and biases the bearing bands 25 and 26 in a direction in which they are separated from each other. The rotating shaft 1
6, the swash plate cams 18 and 19, the rods 23 and 24, the bearing bands 25 and 26, and the support shaft 17 constitute the motion conversion mechanism 12. Details of the configuration of the motion conversion mechanism 12 will be described later. In addition, the frame 1 of the rotary shaft 16
In the portion extending outward of 5, a meniscus-shaped positioning piece 29
And a sensor 30 such as a photo interrupter for optically detecting the positioning piece 29 is arranged in the vicinity of the positioning piece 29.

The details of the configuration of the motion conversion mechanism 12 will be described below with reference to FIGS. The rotating shaft 1
In the hexagonal columnar portion 6 of the rotary shaft 16, sliders 33 and 34 each having a substantially cylindrical outer shape having a hexagonal cylindrical insertion hole corresponding to the hexagonal columnar shape of the rotary shaft 16 are provided. It is mounted so as to be movable in the axial direction.
Therefore, there is some clearance between the insertion holes of the sliders 33 and 34 and the rotary shaft 16. The bearing 3 is surrounded by the vicinity of the ends of the sliders 33, 34 that are close to each other.
1, 32 are fixed by inclining each at a predetermined angle,
The swash plate cams 18 and 19 are coaxially fixed to the outer rings of the bearings 31 and 32, respectively. Therefore, the bearing 31,
32 has an axis inclined with respect to the axis of the rotary shaft 16 and is configured so that the axis of the rotary shaft 16 passes through the eccentric position. As a result, the swash plate cams 18 and 19 are
The rotation of the rotary shaft 16 causes the swash plate cams 18 and 19 to swing in a direction along the axis of the rotary shaft 16 in accordance with the degree of inclination. Further, the axis of the rotary shaft 16 has bearings 31, 32.
By passing through the eccentric position, the vertical swing of FIG. 4 in the direction perpendicular to the axis of the rotating shaft 16 is performed according to the degree of the eccentricity.

For example, C-shaped retaining rings 35 and 36 are fitted to the rotary shaft 16 corresponding to the tips of the sliders 33 and 34 via washers or the like, and the maximum separation positions of the swash plate cams 18 and 19 are determined. ing. In addition, the bearings 31, 32
The spring 20 is mounted on the rotating shaft 16 between the bearings 31 and 32 so as to urge the bearings 31 and 32 in directions to separate from each other.

Protrusions 37 and 38 are integrally provided at the rear ends of the swash plate cams 18 and 19 opposite to the arms 21 and 22, respectively.
One end of 3, 24 is fixed. The bearing band 25, to which the other end of the rod 23 is fixed, includes a tubular portion 39 that surrounds the support shaft 17, and a pair of engaging protrusions 40 that are formed at opposite positions on the outer periphery of the tubular portion 39. , 41. The other end of the rod 23 is attached to one of the engagement protrusions 40 by a pin 42 in a direction perpendicular to the axis of the support shaft 17,
The pin 42 is mounted so as to be freely angularly displaced. The bearing band 26 to which the other end of the rod 24 is fixed is
It has a cylindrical portion 43 surrounding the support shaft 17, and a pair of engagement protrusions 44, 45 formed at mutually opposite positions on the outer periphery of the cylindrical portion 43. The other end of the rod 24 is attached to one of the engagement protrusions 44 by a pin 46 in a direction perpendicular to the axis of the support shaft 17 so as to be angularly displaceable around the pin 46. Therefore, the swash plate cams 18 and 19 that swing along the axial direction of the rotary shaft 16 are swingably supported by the bearing bands 25 and 26 via the rods 23 and 24.

Annular end plates 48, 49 are arranged at both ends of the bearing band 25 in the axial direction. At both ends in the axial direction of the bearing band 26, annular end plates 51, 5 are provided.
2 is placed. C-shaped retaining rings 53 and 54 are attached to the support shafts 17 on the opposite sides of the end plates 48 and 51, respectively. Therefore, the maximum separation positions of the bearing bands 25 and 26 in the directions in which they separate from each other are the C-type retaining rings 53 and 54.
Is set as the installation position of. Further, the spring 27 mounted on the support shaft 17 is disposed between the end plates 49 and 51, and the bearing bands 25 and 26 are biased by the springs in the directions in which they are separated from each other between the maximum separated positions. ing.

The electrical construction of the massaging machine 1 will be described below with reference to FIG. The massaging machine 1 includes an operation panel 55 for setting various massaging operations, and the operation panel 55 is connected to a microcomputer 56. The microcomputer 56 includes the motors 7 and 11 and the sensor 30.
And are connected. As described above, the rotating shaft 9 is rotated in either of the two directions by the rotation of the motor 7 in either of the two directions, and the drive mechanism 5 is moved up and down. Also,
The rotation of the motor 11 is converted into a swing motion by the motion conversion mechanism 12, and the massaging elements 10a and 10b are swung to perform a massaging operation such as a massaging operation. Microcomputer 56
Outputs an operation signal to the motors 7 and 11 based on an operation program stored in the internal memory in response to a setting signal output from the operation panel 55 corresponding to the massaging operation set on the operation panel 55, Perform the set massage operation.

The operation of the massaging machine 1 having such a configuration will be described below with reference to FIGS. When operating the massaging machine 1, the operation panel 55 is used to drive the motor 7 under the control of the microcomputer 55 to move the drive mechanism 5 up and down on the backrest portion 3 of the chair 2 to move the drive mechanism 5 to a predetermined massaging position. Set to. When the drive mechanism 5 is stopped at a predetermined massage position using the operation panel 55, a desired massage operation such as a kneading operation or the like is set on the operation panel 55. Then, the massaging machine 1 is started using the operation panel 55, and the motor 11 is rotated to perform the desired massaging operation.
The details of the massage operation will be described below.

When the motor 11 rotates in the clockwise direction in FIG. 2 and the rotating shaft 16 rotates in the same direction, the swash plate cams 18, 1
Since the bearings 31 and 32 mounted on the shaft 9 are configured such that the axis of the rotary shaft 16 passes through the eccentric position, the swash plate cam 18 corresponding to the degree of eccentricity,
19 moves up and down. At this time, the sides of the swash plate cams 18 and 19 opposite to the massaging elements 10 a and 10 b are connected to the support shaft 17 via the rods 23 and 24 and the bearing bands 25 and 26. This connection is, as described above, the rod 2
5, 26 are swingable with respect to the support shaft 17, and the distance from the support shaft 17 is fixed. Therefore, the vertical movement of the swash plate cams 18 and 19 is centered on the connecting position of the swash plate cams 18 and 19 with the rods 23 and 24, and the distance from the connecting position to the rotary shaft 16 and the kneading from the connecting position. The massagers 10a and 10b are vertically moved in proportion to the ratio to the distances to 10a and 10b.

On the other hand, the bearings 31 and 32 are attached to the rotary shaft 16
The swash plate cams 18 and 19 swing to the left and right in response to the rotation of the rotary shaft 16 because the swash plate cams have an axis inclined with respect to the axis. At this time, the rod 2 of the swash plate cams 18 and 19
3, 24 and the bearing bands 25, 26 are connected to the support shaft 17 described above, and the spring 27 biases the bearing bands 25, 26 in a mutually separate direction. , 19 and rods 23, 24 reciprocate along the axis of rotation 16 about the pins 42, 46 shown in FIG. Therefore,
The upper and lower movements of the swash plate cams 18 and 19 and the left and right swings are combined, and the massager 10 attached to the swash plate cams 18 and 19
a and 10b perform an elliptic motion. This makes the massage 10
a and 10b perform a massaging operation of rubbing the back, shoulders, or neck of a person leaning on the backrest portion 3 of the chair 2. When the motor 11 is rotated in the opposite direction and the rotary shaft 16 is rotated counterclockwise in FIG. 2, the swash plate cams 18 and 19 perform an elliptical motion that is the reverse rotation of the elliptical motion, and the masses 10a and 10a.
b performs a kneading operation.

In the present embodiment, as described above, the sliders 33 and 34 are fixed to the rotary shaft 16 with a simple structure. Further, the insertion holes of the sliders 33 and 34 and the rotary shaft 16
The use of the spring 20 eliminates the occurrence of noise and vibration due to a slight gap that is supposed to occur between the and. That is, the sliders 33, 34 to which the swash plate cams 18, 19 are fixed
However, since the springs 20 are urged by the springs 20 in the separating direction between the maximum separating positions of the C-shaped retaining rings 35, 36, the sliders 33, 34 move the rotating shaft 16
Will be almost fixed against. As a result, even if there is the gap between the sliders 33 and 34 and the rotary shaft 16, the sliders 33 and 34 are prevented from rattling with respect to the rotary shaft 16 and generating noise or vibration. As a result, a high-quality massaging machine 1 with improved quietness is realized.

Further, in this embodiment, the rotationally driven shafts necessary for performing the massaging operation are the rotary shafts 9 and 16.
As a result, the number of motors for rotationally driving each shaft can be reduced for a massaging machine that requires four rotationally driven shafts, and a power transmission mechanism between the motor and the shafts or the number of shafts can be reduced. , It is possible to reduce each mechanism related to the axis. Therefore, the structure of the massaging machine 1 of the present embodiment is simplified and the number of parts is reduced. Moreover, since the swash plate cams 18 and 19 that perform the above-mentioned massaging operation are swingably supported by the support shaft 17 and are respectively held by the support shaft 17 at the maximum separated position, the distance between the swash plate cams 18 and 19 is increased. It is possible to realize a massaging machine that performs a high-quality massaging operation in which the unwanted fluctuations are prevented.

FIG. 7 is a front view of a motion converting mechanism 12a of a massaging machine 1a according to another embodiment of the present invention, and FIG. 8 is a massaging machine 1a.
It is a perspective view of the drive mechanism 5a. The configuration of the massaging machine 1a will be described below with reference to FIGS. 7 and 8. The massaging machine 1a of the present embodiment has a structure for performing a hitting operation described below, in addition to the structure of the massaging machine 1 of the above-described embodiment. The massaging machine 1a includes a rotating shaft 61 that is rotationally driven by a motor 60, instead of the support shaft 17. Also,
The rod 2 is attached to the swash plate cams 18 and 19 as in the above embodiment.
3, 24 are connected. The bearing band 25a, to which one end of the rod 23 is fixed, has a tubular portion 39a surrounding the support shaft 17, and an engagement protrusion 40 formed on the outer periphery of the tubular portion 39a. The engaging projection 40 has the rod 23
The other end is attached by a pin 42 in a direction perpendicular to the axis of the rotary shaft 61 so as to be angularly displaceable around the pin 42. Bearing band 2 to which the other end of the rod 24 is fixed
6a is a cylindrical portion 43a surrounding the rotary shaft 61, and a cylindrical portion 43a.
and an engaging projection 44 formed on the outer periphery of a. The other end of the rod 24 is attached to the engaging protrusion 44 by a pin 46 in a direction perpendicular to the axis of the rotating shaft 61 so as to be angularly displaceable around the pin 46. Therefore, the rotary shaft 16
The swash plate cams 18 and 19 swinging along the axial direction of the rod 2 with respect to the bearing bands 25a and 26a.
It is swingably supported via 3, 24.

Inside the bearing band 25a, a bearing 41 is coaxial with the bearing band 25a,
The bearing 4 is placed at a position eccentric to the axis of the rotating shaft 61.
It is attached so that the axis of 1 passes. The bearing 41 is
It is fixed to the rotating shaft 61. Inside the bearing band 26a, the bearing 45 is mounted coaxially with the bearing band 26a so that the axis of the bearing 45 passes through a position eccentric to the axis of the rotary shaft 61. The bearing 45 is fixed to the rotating shaft 61. Bearing 41
C-shaped retaining rings 51 are arranged at both axial ends of the bearing, and C-shaped retaining rings 52 are arranged at both axial ends of the bearing 45. Therefore, the installation position of each bearing band 25, 26 with respect to the rotating shaft 61 is determined as the installation position of the C-shaped retaining rings 51, 52.

The massaging machine 1a of this embodiment has an electrical structure in which a motor 60 is further connected to the microcomputer 56 of FIG. 6 in addition to the electrical structure of the massaging machine 1 of the above-described embodiment shown in FIG. are doing.

The massage operation of the massage machine 1a will be described below.
Among the massage operations of the massage machine 1a, the raising / lowering operation of the drive mechanism 5 is the same as that of the massage machine 1. When performing a rubbing operation, the motor 11 is rotationally driven as in the above-described embodiment. At this time,
The massaging machine 1a includes a rotary shaft 16, a swash plate cams 18, 19, and a spring 20 having the same configuration as the massaging machine 1, and the rods 25, 26 swing about the pins 42, 46 with respect to the rotary shaft 61. Since it is movable and has a fixed distance from the rotating shaft 61, the massaging members 10a, 10a, 10
For b, a rubbing operation similar to that of the massaging machine 1 is performed.

When the massaging machine 1a performs a hitting operation, the motor 60 is activated and the rotary shaft 61 is rotationally driven. At this time, the bearings 41 and 45 mounted inside the bearing bands 25a and 26a are
Since the axes of the bearings 41 and 45 are coaxial with a and 26a and are eccentric with respect to the axis of the rotating shaft 61, the bearing band 25a is rotated as the rotating shaft 61 rotates. , 26a are rotary shafts 61
Moves up and down in the direction perpendicular to the axis of. This vertical movement is the rod 2
The protrusions 37 and 38 of the swash plate cams 18 and 19 through
Move up and down. As a result, the swash plate cams 18 and 19 are reciprocally angularly displaced about the rotation shaft 16. Therefore, the swash plate cam 1
The reciprocal angular displacements of 8 and 19 are centered on the connecting position of the swash plate cams 18 and 19 with the rods 23 and 24, and the distance from the connecting position to the rotary shaft 16 and the connecting position to the massager 10.
The vertical movement of the masses 10a and 10b is amplified in proportion to the ratio to the distances to a and 10b. This makes the massage 10
A tapping operation is performed by a and 10b.

Even in the massaging machine 1a of this embodiment, noise or vibration may occur even if there is a gap between the sliders 33 and 34 mounted on the swash plate cams 18 and 19 and the rotary shaft 16. It is clear that it has been prevented. Therefore, also in this embodiment, a high-quality massaging machine 1a with improved quietness is realized.

Further, the configuration described in the above embodiment shows one embodiment of the present invention and does not limit the scope of the present invention. The present invention includes a wide range of modifications without departing from the spirit of the present invention.

[0033]

As described above, according to the first aspect of the present invention, in order to perform the massaging operation, in the rotary shaft that is rotated to perform the massaging operation, the swinging member that swings during the massaging operation is: Between the maximum separated positions along the direction of separating from each other along the rotation axis, springs are biased in the separating directions by the springs. The swing member is fixed to the rotating shaft by the force of this spring. Thereby, each swing member is easily fixed to the rotation shaft. Therefore, even if there is a gap between the rocking member and the rotary shaft, the rocking member is prevented from rattling with respect to the rotary shaft and noise or vibration is prevented. As a result, a high-quality massaging machine with improved quietness is realized when performing the massaging operation.

[Brief description of drawings]

FIG. 1 is a front view of swash plate cams 18 and 19 used in a massaging machine according to an embodiment of the present invention.

FIG. 2 is a side view of a motion conversion mechanism.

FIG. 3 is a perspective view of a motion conversion mechanism.

FIG. 4 is a front view of a drive mechanism.

FIG. 5 is a sectional view of the massaging machine 1 of the present embodiment.

FIG. 6 is a block diagram illustrating an electrical configuration of the massaging machine 1.

FIG. 7 is a front view of a massaging machine 1a according to another embodiment of the present invention.

FIG. 8 is a perspective view of a massaging machine 1a.

[Explanation of symbols]

 1, 1a Massager 2 Chair 5, 5a Drive mechanism 7, 11, 60 Motor 9, 16, 61 Rotating shaft 10a, 10b Rubber 12, 12a Motion conversion mechanism 17 Support shaft 18, 19 Swash plate cam 20, 27 Spring 25 , 26, 25a, 26a Bearing band 33, 34 Slider 47, 50 Spherical bearing 53, 54 C type snap ring

Claims (1)

[Claims] 1. A pair of rocking members each having a pair of massaging members attached to one end for performing a massaging operation, a rotary shaft on which the rocking members are mounted, and a pair of rocking members. A massaging machine that is provided with a spring that biases the pair of rocking members in the mutually separating directions between the maximum separating positions along the direction in which they are separated from each other.