JPH11113995A - Massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a constitution by simplifying wirings and decreasing the number of wiring boards. SOLUTION: A control circuit 23 for motors 7 and 11 of a massage machine 1 is provided with a common circuit part 30 and an individual circuit part 33 and the common circuit part 30 is provided with a noise filter circuit 24, a smoothing circuit 28 contg. a capacitor 27, an auxiliary power circuit 31 and a CPU 32. The common circuit part 30 is connected with each motor 7 and 11 through a connector C contg. connecting terminals C1-C8. The individual circuit part 33 built in each motor 7 and 11 is carried on a wiring board, etc., built in the motors 7 and 11 as a circuit element such as an integrated circuit element, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair-type rubbing machine, for example.

[0002]

2. Description of the Related Art Conventionally, a chair-shaped rubbing machine has been used in which a patient can sit and receive a rubbing operation. In such a massaging machine, a driving mechanism for performing a massaging operation is stored in a backrest portion of the chair, and the driving mechanism is provided with a pair of massagers,
By driving a kneading motor or a hitting motor arranged in the drive mechanism, the kneader performs a massaging operation such as a kneading operation or a hitting operation. Further, in such a massaging machine, in order to perform the massaging operation at a desired position of the patient sitting on the chair, the backrest portion of the chair is provided with an elevating mechanism including an elevating motor for elevating the driving mechanism. ing. In addition, a width adjusting mechanism for adjusting the interval between the pair of massagers is provided according to the body shape and the site of the patient. In the width adjusting mechanism, for example, a pair of holding members each having a female screw are mounted on each male screw portion of a pole screw having male screws in opposite directions formed around the center in the longitudinal direction as a boundary. , Each of the pair of massagers is fixed. When the pole screw is driven to rotate in one direction using a motor for width adjustment, the pair of holding members, and hence the pair of massagers, approach / separate from each other, and the interval between them is adjusted.

[0003]

A DC motor is often used as a motor for such various uses. PW
When a plurality of M (pulse width modulation) controlled DC motors are used, it is necessary to use various circuits (hereinafter collectively referred to as control circuits) such as an inverter circuit and a PWM circuit for supplying a drive current to each coil of the motor. There is. Conventionally, there is a case where such a control circuit is installed in a single control device to reduce the number of wiring boards used. In such a case, a signal line connecting the control circuit and a winding of each motor is used. There is a problem that the number increases and wiring becomes complicated. Also,
As another conventional technique, there is a case where the wiring is simplified by dispersing and arranging the control circuit described above as an example for each motor. In such a case, there is a problem that the number of wiring boards on which the control circuit is mounted increases. In either case, there is a problem that the configuration becomes complicated.

The present invention has been made to solve the above-mentioned technical problems, and has as its object to simplify wiring, reduce the number of wiring boards used, and simplify the configuration. Is to provide a rubbing machine.

[0005]

The rubbing machine according to the present invention includes a plurality of motors used for performing a rubbing operation and the like. Further, when controlling the driving of each motor, an input common to each motor is provided. A common circuit portion that outputs a possible signal; and an individual circuit portion that outputs a signal for driving each motor based on a signal from the common circuit portion. It is built in.

Thus, even when a plurality of motors are used for one lubricator, a circuit portion required individually for each motor and which cannot be shared in a circuit for controlling each motor is included in each motor case. The number of wires connecting each motor and the control circuit can be significantly reduced as compared with the case where control circuits required for motor control are arranged at the same location apart from each motor. . Thereby, the configuration and the manufacturing process of the lubricating machine can be simplified. Further, as compared with the case where the control circuit is provided for each motor, the number of control circuit wiring boards required for each motor can be reduced, which can also simplify the configuration and the manufacturing process. .

On the other hand, in the present invention, the common circuit portion may be arranged in any one of the motors and in any of the control devices to which the motors are connected. In this case, a circuit that can be commonly used for controlling each motor can be unified without providing for each motor. This can also simplify the configuration of the rubbing machine.

[0008]

Embodiments of the present invention will be described below.

1 to 4 show an embodiment of the present invention. FIG. 1 is a block diagram showing an electrical configuration of an example of the rubbing machine 1 of the present invention, FIG. 2 is a block diagram showing a partial configuration of a control circuit of the rubbing machine 1, and FIG. FIG. 4 is a cross-sectional view showing an example of a configuration of a motor used, and FIG.

Referring to FIG. 4, the mechanical structure of the rubbing machine 1 of this embodiment will be described. As shown in FIG. 4, the rubbing machine 1 has a chair shape, and the chair 2
The rack 4 is fixed inside the backrest portion 3 of the
A pair of pinions 6 a, 6 b provided in a drive mechanism 5 having a configuration described below for performing the rubbing operation is engaged with the rack 4. A DC brushless motor (hereinafter referred to as a motor) 7 rotates as an example of a drive for raising and lowering the drive mechanism 5 provided in the drive mechanism 5 through an operation conversion mechanism 8 using a helical gear, a worm gear, or the like as an example. The axial direction is changed from the left-right direction in FIG. 2 to a direction perpendicular to the paper of FIG. 2 and transmitted to the rotating shaft 9. Rotating shaft 9 by motor 7
Is rotated in one of the two directions, the pinions 6a and 6b are rotated, and the driving mechanism 5 is driven up and down by the backrest portion 3 of the chair 2 by the engagement between the pinions 6a and 6b and the rack 4.

The drive mechanism 5 is configured such that a pair of massagers 10a and 10b provided in the drive mechanism 5 face the back of the patient leaning on the chair 2 in a state of being attached to the backrest 3 of the chair 2. Have been. The massagers 10a and 10b are connected to a motor 11 equipped with a pulse generator provided in the drive mechanism 5 via an operation conversion mechanism 12, and the rotation operation of the motor 11 is performed by the operation conversion mechanism 12
These are converted into reciprocating motions for the patients a and 10b. A pivoting mechanism 13 is provided at the lower end of the backrest 3 of the chair 12 to enable the so-called reclining operation of the backrest 3 of the chair 2.

Referring now to FIG. 3, the structure of the motors 7, 11 used in the rubbing machine 1 of the present embodiment will be described. The following description is made with respect to the motor 11, but the motor 7 may have the same configuration as the configuration described below.

The motor 11 is, for example, a nine-pole motor composed of three phases of a U phase, a V phase and a W phase. Stator 1 having a plurality of coils 15 mounted in casing 14 of motor 11
6 and a rotor 17 are arranged, and a wiring board 18 having an electrical configuration described later is arranged on the left side of the stator 16 in FIG. The casing 14 is covered by a cover plate 19. The rotating shaft 20 fixed to the rotor 17 is rotatably supported by bearings 21 and 22 provided inside the casing 14. A circuit to be described later is mounted on the wiring board 18, and a drive current and signals are supplied from an external control device (not shown) as described later.

Hereinafter, with reference to FIGS. 1 and 2,
The electrical configuration of the motors 7 and 11 will be described. The control circuit 23 of the motors 7 and 11 includes a noise filter circuit 24 for removing noise from the AC voltage from the AC power supply P. The noise filter circuit 24 is connected in parallel to power lines 25 and 26 connected to the noise filter circuit 24. And a smoothing circuit 28 including a capacitor 27 for rectifying and smoothing the AC voltage from. The noise filter circuit 24 and the smoothing circuit 28 include a common circuit portion 30 that outputs a power supply voltage and a signal commonly used by the motors 7 and 11 in the control circuit 23. The common circuit portion 30 is connected to each of the motors 7 and 11 each having a built-in electric circuit, which will be described later, via a connector C including connection terminals C1 to C8. The power line 25 is connected to the connection terminal C.
The drive voltage VM is supplied to the motors 7 and 11 via the terminals 1 and C2, and the power supply line 26 supplies the ground voltage GND to the motors 7 and 11 via the connection terminals C5 and C6.

The common circuit portion 30 further includes an auxiliary power supply circuit 31 connected between power supply lines 25 and 26 at the subsequent stage of the smoothing circuit 28, and a DC voltage Vcc of a predetermined level from the auxiliary power supply circuit 31. A CPU (central processing unit) 32 realized by a supplied microprocessor or the like is provided. The CPU 32 supplies a drive signal Vs to the motors 7 and 11 via the connection terminals C3 and C4. Also,
The auxiliary power supply circuit 31 supplies the control circuit DC voltage Vcc to each of the motors 7 and 11 via the connection terminals C7 and C8. Such a common circuit portion 30 is installed in a portion other than the motors 7 and 11 in the rubbing machine 1.

The configuration example of the individual circuit portion 33 built in each of the motors 7 and 11 connected to the common circuit portion 30 is as follows.
It is shown in FIG. Although the example of the motor 7 is shown in the example of FIG. 2, it is obvious that the same configuration can be adopted in the case of the motor 11. The individual circuit portion 33 of the motor 7 includes drive currents Iu, Iv, Iw for each phase corresponding to the set rotational speed.
Circuit which supplies the driving currents Iu, Iv, Iw based on the supplied power supply voltage VM and the ground potential GND in the inverter circuit 34. A PWM circuit 35, an energizing logic circuit 36 for controlling the operation of the PWM circuit 35 and the like, a coil 15U,
A magnetic pole detecting element composed of a Hall element or the like for detecting the magnetic poles of 15V and 15W and supplying a detection signal to the energizing logic circuit 36 to detect the rotation speed of the motor 7 and to perform feedback control of the rotation of the motor 7 37. In this embodiment, a circuit element such as an integrated circuit element for realizing the individual circuit portion 33 is mounted on the wiring board 18 described with reference to FIG.

The magnetic pole detection element 37 inputs the magnetic pole detection signal having a frequency corresponding to the rotation speed of the motor 7 to the energization logic circuit 36. The output of the energizing logic circuit 36 is input to the PWM circuit 35, and the PWM circuit 35
A signal from the energizing logic circuit 36 is compared with, for example, a triangular wave from a triangular wave generating circuit (not shown), and a PWM signal in an ON period corresponding to the set rotation speed is output from the inverter circuit 3.
4 is output. The inverter circuit 34 turns on / off each of the coils 15U, 15V, 15W with a predetermined pulse width based on the PWM signal. Thus, the motor 7 is driven to rotate at a predetermined rotation speed.

In the rubbing machine 7 of this embodiment, a plurality of motors 7 and 11 used for performing a rubbing operation are provided.
A common circuit portion 30 commonly used for each of the motors 7 and 11 for controlling the driving of the motor, and an individual circuit for outputting a signal for driving each of the motors 7 and 11 based on a signal from the common circuit portion 30 And the individual circuit portion 33 includes a casing 14 of each of the motors 7 and 11.
Are mounted as circuit elements such as integrated circuit elements on a wiring board 18 therein. Further, the common circuit portion 30 is not provided for each of the motors 7 and 11, but is provided as a single circuit board or the like, for example, at a portion other than the motors 7 and 11 of the rubbing machine 1.

Thus, even when a plurality of motors 7 and 11 are used for one rubbing machine 1, each of the motors 7 and 11 needs to be individually controlled in the control circuit 23 necessary for controlling the motors 7 and 11. Since the individual circuit portion 33 that cannot be shared by the motors 7 and 11 is built in the casing 14 of each of the motors 7 and 11, the control circuit 23 including the individual circuit portion 33 necessary for controlling the motors 7 and 11 is separated from each of the motors 7 and 11. Compared with the case where the motors 7 and 11 are arranged at the same place apart from each other, the number of wires connecting the motors 7 and 11 and the control circuit 23 can be significantly reduced. Thereby, the configuration and manufacturing process of the rubbing machine 1 can be simplified. The control circuit 23 is connected to each of the motors 7 and 11.
The number and size of the control circuit wiring boards required for each of the motors 7 and 11 can be reduced as compared with the case where each of the motors 7 and 11 is provided, thereby also simplifying the configuration and the manufacturing process.

In the above embodiment, the common circuit portion 30
Is installed at a portion other than the motors 7 and 11 in the rubbing machine 1, but as a modification of the present invention, the common circuit portion 30 is installed on the wiring board 14 inside any one of the motors 7 and 11. You may make it. This can also simplify the configuration of the rubbing machine.

In the present embodiment, the description has been given with respect to the two motors 7 and 11 of the rubbing machine 1. However, it is apparent that the present invention can be applied to a rubbing machine having three or more motors. Further, the circuit elements or circuit functions that constitute the control circuit 23 are described by the common circuit portion 30 and the individual circuit portion 3.
The example of division into three is not limited to the above embodiment, and other types of division examples can be adopted. The present invention is not limited by such division examples.

The present invention is not limited to the above embodiments, but includes a wide variety of modifications without departing from the spirit of the present invention.

[0023]

As described above, the grooming machine according to the first aspect of the present invention outputs a signal which can be commonly input to each motor when driving and controlling a plurality of motors used for performing a grooming operation. And a separate circuit portion for outputting a signal for driving each motor based on a signal from the common circuit portion, such that the individual circuit portion is built in each motor case. did.

In this way, even when a plurality of motors are used for one lubricator, in the circuits necessary for controlling each motor, a circuit part that is individually required for each motor and cannot be shared is provided in each motor case. The number of wires connecting each motor and the control circuit can be significantly reduced as compared with the case where control circuits required for motor control are arranged at the same location apart from each motor. . Thereby, the configuration and the manufacturing process of the lubricating machine can be simplified. Further, as compared with the case where the control circuit is provided for each motor, the number of control circuit wiring boards required for each motor can be reduced, which can also simplify the configuration and the manufacturing process. .

On the other hand, in the present invention, the common circuit portion may be arranged in any one of the motors and in any of the control devices to which the motors are connected. In this case, a circuit that can be commonly used for controlling each motor can be unified without providing for each motor. This can also simplify the configuration of the rubbing machine.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electric configuration of an rubbing machine 1 according to one embodiment of the present invention.

FIG. 2 is a block diagram of an individual circuit portion 33 used in the rubbing machine 1.

FIG. 3 is a sectional view of the motor 11;

4 is a sectional view of the rubbing machine 1. FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 greaser 5 drive mechanism 7, 11 motor 14 casing 18 wiring board 23 control circuit 30 common circuit part 33 individual circuit part C1 to C8 connection terminal

Claims (2)

[Claims] 1. A motor comprising: a plurality of motors; a common circuit portion for outputting a signal which can be commonly input to each motor when controlling the driving of each motor; and a motor for controlling each motor based on a signal from the common circuit portion. An individual circuit part for outputting a driving signal, wherein the individual circuit part is built in each motor case. 2. The leveling machine according to claim 1, wherein the common circuit portion is arranged in any one of the motors and a control device to which the motors are connected.