JP2935766B2 - Massage machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine.

[0002]

2. Description of the Related Art Generally, in a massage machine, it is necessary to move the position of a treatment element according to a part to be massaged. For example, in a massage machine having a treatment element on the back of a chair, the treatment element is moved up and down with respect to the human body to massage the neck and waist. Also, the width between the treatment elements should be narrow at the neck and wide at the shoulder. further,
The treatment element is moved in the front-back direction (chest, back direction) with respect to the human body according to the user's preference. In this case, the larger the amount of protrusion toward the human body, the greater the pressure with which the treatment element presses the human body, and it feels as if the massager is strongly massaged.

[0003] In a conventional massage machine, the width of a pair of treatment elements, the adjustment of the treatment element in the front-rear direction and the vertical direction with respect to the human body, and the treatment element contacting the human body during the operation of massaging and beating. As expected, it was done irrespective of that.

[0004]

Therefore, when the treatment element is in contact with the human body, the width of the treatment element, the longitudinal direction, and the vertical direction may be adjusted. In such a case, a large load is applied to the drive source for adjustment, so that durability is reduced and a drive source with high output is required.
For this reason, there has been a problem that the drive source for adjustment becomes large.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a massage machine in which a large load is not applied to a drive source for adjustment for adjusting the width between treatment elements, the longitudinal direction and the vertical direction of the treatment element. is there.

[0006]

According to the present invention, there is provided a massage machine comprising: a pair of treatment elements mounted on a main body so as to be able to protrude and retract; a main drive source for causing the pair of treatment elements to perform kneading and hitting operations; A width driving source for varying a width between the driving elements, a front and rear driving source for driving the treatment element in the front-rear direction, and at least the main driving source among a vertical driving source for driving the treatment element in the vertical direction. In a massage machine comprising a plurality of drive sources, each of which is independently controlled by a control circuit, only when the treatment element is located in the main body, the width drive source and the front / rear drive source The control circuit is configured so that the vertical drive source can operate.

[0007]

According to the structure of the present invention, only when the treatment element is located in the main body, that is, when the treatment element is not in contact with the human body, the width between the treatment elements, the front-rear direction and the vertical direction of the treatment element are adjusted. As a result, a large load is not applied to the drive sources for these adjustments, and the durability is improved. Also,
Accordingly, the driving source for the adjustment may be of a low output, so that the driving source can be made compact.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A massage machine according to an embodiment of the present invention will be described with reference to FIGS. A main drive source 2a, a width drive source 5a,
A front / rear drive source 3a and a vertical drive source 4a are additionally provided. These main drive source 2a, width drive source 5a, front and rear drive source 3
a, a kneading shaft 2b, a width shaft 5b, a front and rear shaft 3a, and a vertical shaft 4b penetrating the frame 1 are rotatably mounted on the vertical driving source 4a. The kneading shaft 2b is connected to a rotation angle detector 22 described later.
Are connected via a clutch 6 for connecting and disconnecting the power of the main drive source 2a. The clutch 6 is attached to the frame 1.

A pair of housings 9 to which the treatment elements 7a and 7b are attached, and a pair of side plates 11a and 11b integrated with the housings 9 are mounted on the kneading shaft 2b substantially symmetrically. The housing 9 is rotatably arranged on the outer periphery of the eccentric inner ring 10. The eccentric inner ring 10 is provided with a kneading shaft 2b.
And can be freely moved in the axial direction and fixed in the circumferential direction so as to be able to rotate integrally with the kneading shaft 2b. The treatment elements 7a and 7b are formed in a cylindrical shape with a flexible material such as rubber, and are rotatably pivotally attached to the arm 8 so that the curved side surfaces are parallel to the human body. The arm 8 is fixed to the housing 9. Further, the treatment elements 7a and 7b can be protruded and retracted from the main body 30 such as a chair, and when positioned inside the main body 30, the treatment elements 7a and 7b are configured so that the pressure of the human body is not applied.

The power of the main drive source 2a is transmitted to the hitting shaft 23 by transmitting the power of the main drive source 2a to the pulley 17a by the clutch 6. That is, a pulley 17b to which two belts can be hung is rotatably connected to the end of the front and rear shaft 3b, and the pulley 17c is connected to the end of the hitting shaft 23. Then, one end of the pulley 17a and one end of the pulley 17b are
a and the other end of the pulley 17b and the pulley 1
7c are connected by a timing belt 18b. Thus, the rotation of the main drive source 2a is controlled by the clutch 6, the pulley 17
a, the timing belt 18a, the pulley 17b, the timing belt 18b, and the pulley 17c.

The hitting shaft 23 is rotatably attached to the support plates 12a, 12a, 12b at both ends and the center. Each support plate 12a, 12a, 12b of the hitting shaft 23
Between them are eccentric shapes, such as a crankshaft, axisymmetrically with respect to each other. One ends 14a, 14a of coupling plates 14, 14 are rotatably attached to the pair of crankshafts 23a, 23b, respectively. And, as shown in FIG.
The other end 14 of the coupling plate 14 is provided at a position 13 which is substantially symmetrical with respect to the fixing portion of the housing 9 and the arm 8 and the kneading shaft 2b.
b and 14b are rotatably mounted. Also, the support plate 1
Reference numerals 2a, 12a, and 12b are fixed to the front and rear shafts 3b at both ends and near the center in a direction perpendicular to the shafts, and support the front and rear shafts 3b.

The width shaft 5b is threaded in opposite directions on both left and right sides, and the side plates 11a and 11b are screwed together. That is, one end of each of the side plates 11a and 11b is inserted into the kneading shaft 2b, and the other end is provided with a through screw hole in the axial direction of the kneading shaft 2b. These through screw holes are in reverse screw relationship with each other,
Screwed to the width shaft 5b. Then, with the rotation of the width shaft 5b, the side plates 11a and 11b move in opposite directions along the width shaft 5b.

Pinions 15, 1 are provided at both ends of the vertical shaft 4b.
5 are connected and mesh with racks 16 and 16 formed on the back of the main body 30 (FIG. 3). FIG. 4 is a functional configuration diagram. The power supply circuit 19 converts a commercial power supply into direct current and converts the main power supply into a main drive circuit 2c, a front / rear drive circuit 3c, and a vertical drive circuit 4
c, power is supplied to the width drive circuit 5c. The respective drive circuits 2c, 3c, 4c, 5c are driven by respective drive sources 2a, 3a, 4a, 5a in accordance with a command from the control circuit 20.
Control the direction of rotation, start and stop. The driving source 3
Reference numerals a, 4a, and 5a denote, for example, step motors, which rotate by an angle corresponding to the number of pulses input from the control circuit 20 to each of the drive circuits 3c, 4c, and 5c. 4b and the width shaft 5b are rotationally driven. The clutch 6 controls the rotation of the main drive source 2a, which has passed through the speed reducer, according to a command from the control circuit 20 to the kneading shaft 2b and the hitting shaft 2b.
3, and is rotationally driven. The front and rear shaft 3b, the vertical shaft 4b, and the width shaft 5b are
It is rotationally driven by the rotation of 4a and 5a. The rotation angle detector 22 includes a disk with a slit and a photo interrupter, or a multipolar magnetized magnet and a Hall element, and detects the rotation angle of the kneading shaft 2b. The operation input circuit 21
The massage contents (rubbing, tapping), the position, and the strength of the treatment elements 7a, 7b are instructed to the control circuit 20, and the control circuit 20 drives the driving circuits 2c, 3c, 4c, 5c so as to be in the designated massage state. Command.

This massage machine is provided with a treatment element 7a,
Only when the member 7b is located in the main body 30, the treatment elements 7a, 7
The width between b and the treatment elements 7a and 7b can be adjusted in the front-back direction and the up-down direction. Whether or not the treatment elements 7a and 7b are inside the main body 30 is determined based on the amount of protrusion of the treatment elements 7a and 7b, and the amount of protrusion is obtained from the rotation angle of the kneading shaft 2b. The relationship between the amount of protrusion of the treatment elements 7a and 7b and the rotation angle of the kneading shaft 2b will be described with reference to FIGS. As shown in FIG. 8, it is assumed that the treatment elements 7a and 7b perform a kneading operation in a direction of an arrow so as to draw a circle by rotating the kneading shaft 2b. At this time,
FIG. 9 shows the relationship between the rotation angle of the kneading shaft 2b detected by the rotation angle detector 22 and the amount of protrusion of the treatment elements 7a and 7b. 8 and 9, points A and B correspond to each other. Here, the amount of protrusion of the treatment elements 7a and 7b is set to C. When the amount exceeds C, the treatment elements 7a and 7b project from the main body 30. Thereby, the treatment elements 7a, 7
b comes into contact with the human body. That is, the kneading shaft 2b
It can be determined whether or not the treatment elements 7a and 7b are in contact with the human body at the rotation angle of.

Next, the operation of the massage machine will be described. When a kneading operation command is input from the operation input circuit 21 to the control circuit 20, the control circuit 20 switches to the main drive circuit 2c.
And a command to transmit the rotation of the main drive source 2a to the kneading shaft 2b. Thereby, the main drive source 2
a rotates, and the eccentric inner ring 10 fixed to the kneading shaft 2b rotates. As shown in FIG. 5, the eccentric inner ring 10 changes its diameter from the axis of the kneading shaft 2b due to its rotation, and the housing 9 and the treatment elements 7a,
7b is moved periodically in the front-rear direction to perform massage by a kneading operation.

When a hitting operation command is input from the operation input circuit 21 to the control circuit 20, the control circuit 20
c and a command to the clutch 6 to transmit the rotation of the main drive source 2 a to the hitting shaft 23. Thereby, the main drive source 2
a rotates, the pulley 17a, the timing belt 18a,
Pulley 17b, timing belt 18b, pulley 17c
Is driven, and the hitting shaft 23 rotates. When the hitting shaft 23 rotates, the one ends 14a, 14a of the coupling plates 14, 14 move periodically along the locus 22 drawn by the crankshaft portions 23a, 23b around the hitting shaft 23, as shown in FIG. I do. Accordingly, the other ends 14b, 14 of the coupling plates 14, 14 are connected.
b periodically and repeatedly moves along a locus drawn around the outer periphery of the eccentric inner ring 10. When the other end of the coupling plate 14 repeatedly moves, the housing 9 vibrates around the outer periphery of the eccentric inner ring 10 and the displacement of the treatment elements 7a and 7b in the front-rear direction changes periodically. I do. The housings 9, 9 are connected to the coupling plate 1 as described above.
Crankshaft portions 23 which are in axisymmetric relationship via 4 and 14
For example, when the treatment element 7a protrudes toward the human body, the treatment element 7b is accommodated in the chair, and the two treatment elements 7a and 7b alternately hit the human body. .

Further, the operation elements 7a,
7b is issued by the control circuit 20
Is input to the control circuit 20, the control circuit 20 determines whether the rotation angle of the kneading shaft 2b detected by the rotation angle detector 22 is within the range of the rotation angle that does not contact the human body, and within the range. Only when there is a front and rear drive circuit 3c
Then, a command is issued to rotate the front / rear drive source 3a and rotate the front / rear shaft 3b clockwise as viewed from the front / rear drive source 3a. In this case, as shown in FIG. 7, the support plates 12a move toward the treatment elements 7a and 7b around the front and rear shafts 3b.
Along with this, the other end 14b of the coupling plate 14 rotates counterclockwise as viewed from the front and rear drive source 3a along a locus drawn around the outer periphery of the eccentric inner ring 10, and the treatment elements 7a and 7b move backward in the human body. Move to.

Further, the operation elements 7a, 7a,
The control circuit 20 sends a forward movement command to the human body 7b.
Is input to the control circuit 20, the control circuit 20 determines whether the rotation angle of the kneading shaft 2b detected by the rotation angle detector 22 is within the range of the rotation angle that does not contact the human body, and within the range. Only when there is a front and rear drive circuit 3c
Then, the front-rear drive source 3a is rotated in the reverse direction so that the front-rear shaft 3b
Is rotated counterclockwise when viewed from the front / rear drive source 3a. As a result, the support plates 12a,... Move in the reverse direction, and the treatment elements 7a, 7b move forward of the human body. In addition, when the treatment elements 7a and 7b are moved in the forward direction, a massage in which the pressing force is increased can be performed.

When a command to move the treatment elements 7a and 7b upward with respect to the human body is input from the operation input circuit 21 to the control circuit 20, the control circuit 20 controls the movement of the massage shaft 2b detected by the rotation angle detector 22. It is determined whether the rotation angle is within the range of the rotation angle that does not come into contact with the human body, and only when the rotation angle is within the range, the vertical drive circuit 4c rotates the vertical drive source 4a to rotate the vertical shaft 4b. Command to do so. As a result, the pinion 15 meshing with the rack 16 rotates, and the frame 1 rises upward in the human body, and the treatment elements 7a and 7b move upward in the human body. The downward movement of the treatment elements 7a and 7b with respect to the human body is caused by rotating the vertical drive source 4a, the vertical shaft 4b and the pinion 15 in the opposite direction, lowering the frame 1, and moving the treatment elements 7a and 7b.
The downward movement of the human body b is performed. Also in this case, the vertical drive source 4a and the vertical shaft 4b operate only when the treatment elements 7a and 7b are not in contact with the human body.

When a command to reduce the distance between the treatment elements 7a and 7b is input from the operation input circuit 21 to the control circuit 20, the control circuit 20 sets the rotation angle of the kneading shaft 2b detected by the rotation angle detector 22 to the human body. It is determined whether or not the rotation angle is within the range of the rotation angle where no contact occurs, and only when the rotation angle is within the range, the width driving circuit 5c is instructed to rotate the width driving source 5a and rotate the width shaft 5b. give. This allows
A pair of side plates 1 screwed to the width shaft 5b in a reverse screw relationship
1 and 11 move so as to approach each other. Along with this, the housing 9 and the eccentric inner ring 10 move in a direction approaching each other along the kneading shaft 2b. This movement reduces the distance between the treatment elements 7a and 7b. In addition, treatment child 7
The distance between a and 7b is increased by driving the width driving source 5a and the width shaft 5b.
Rotate in the opposite direction, the housing 9 and the like move in a direction away from each other along the kneading shaft 2b, and the treatment element 7
The interval between a and 7b increases. Also in this case, the treatment element 7a,
Only when the contact 7b is not in contact with the human body, the width driving source 5
a , The width axis 5b is operated.

In the above description of the operation, each operation has been described individually. However, a plurality of treatment elements 7a, 7
The operation command b may be input at the same time. In this case, the positions of the treatment elements 7a and 7b in the front-back, up-down, and width directions can be changed while massaging. In this embodiment, the front and rear drive source 3a, the vertical drive source 4a, and the width drive source 5a are provided, but at least one may be provided. In addition, although a rotary motor was used as a drive source,
A linear motor or the like may be used. In addition, although the rotation angle detector 22 is used as a method of detecting contact with the human body, the rotation angle may be detected using a pressure sensor or the like of the treatment elements 7a and 7b. In this case, when the treatment elements 7a and 7b are positioned inside the main body 30 in the use state in which the user leans on the main body 30, the value of the pressure sensor becomes 0 and the treatment elements 7a and 7b do not contact the human body. It can be determined.

[0022]

According to the massage machine of the present invention, only when the treatment element is located in the main body, that is, when the treatment element is not in contact with the human body, the width between the treatment elements, the front-back direction of the treatment element, and the up-down direction of the treatment element. Since the directions can be adjusted, a large load is not applied to the drive sources for these adjustments, and the durability is improved. In addition, there is an effect that the driving source for adjustment may be of a low output, so that it can be made compact.

[Brief description of the drawings]

FIG. 1 is a sectional plan view of a main part of an embodiment of the present invention.

FIG. 2 is a perspective view of a main part.

FIG. 3 is a simplified perspective view.

FIG. 4 is an explanatory diagram of functions.

FIG. 5 is an explanatory diagram of an operation in a massage state.

FIG. 6 is an explanatory diagram of an operation in a hit state.

FIG. 7 is an explanatory diagram of the operation of position adjustment in the front-rear direction.

FIG. 8 is an explanatory diagram of a protrusion amount of a treatment element.

FIG. 9 is a graph showing the relationship between the amount of protrusion of the treatment element and the rotation angle of the kneading shaft.

[Explanation of symbols]

 2a Main drive source 3a Front / rear drive source 4a Vertical drive source 5a Width drive source 7a, 7b Treatment element 20 Control circuit

Claims (1)

(57) [Claims] 1. A pair of treatment elements attached to a main body so as to be able to protrude and retract, a main drive source for rubbing and hitting the pair of treatment elements, and a width drive source for varying a width between the treatment elements. A plurality of drive sources including at least the main drive source among a front-rear drive source for driving the treatment element in the front-rear direction and a vertical drive source for driving the treatment element in the vertical direction; In a massage machine that is controlled independently by a control circuit, the width driving source, the front / rear driving source, and the vertical driving source can be operated only when the treatment element is located in the main body. A massage machine comprising the control circuit.