JP2008079834A - Rocking equipment for body stimulation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide rocking equipment for body stimulation easily realizing low-speed and harmonious rocking of a mount board. <P>SOLUTION: The mount board 2 and a rotational shaft part 31 are connected by a connecting member 33 so that the mount board 2 where the both feet of a user are mounted can be rocked into an arc shape around the rotational shaft part 31. A low-frequency rotating movement generated by a brushless DC motor is deviated by a prescribed amount from the rotation center of a rotating shaft 41 rotating by receiving the rotating movement and transmitted to a cam follower 42 attached to the rotating shaft 41, and the left-directional and right-directional rectilinear movements are alternately transmitted to the connecting member 33 formed with a cam groove 43 engaged with the cam follower 42 by the eccentric rotation of the cam follower 42. The mount board 2 connected to the connecting member 33 is thus rocked harmoniously around the rotational shaft part 31 and the left side part 2L and the right side part 2R of the mount board 2 perform low-speed vertical vibrations in the mutually inverse directions. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vibration device for body stimulation in which a mounting board for mounting a user's body swings.

  2. Description of the Related Art Conventionally, a vibration device for body stimulation that passively exercises a user by applying vibration stimulation to the user's body has been used to prevent the elderly from falling, rehabilitating weakened muscles, dieting, and the like. (See Non-Patent Documents 1 and 2.)

In such a vibration device for body stimulation, a central portion of the mounting board that is arranged substantially horizontally is supported so that the mounting board can perform seesaw motion, and the rotational motion of the three-phase induction motor, for example, a cam is supported. The vertical motion is converted into the vertical motion, and the converted vertical motion is transmitted to the left side or the right side of the mounting board. For this reason, the left side part and the right side part of the mounting board vibrate up and down in opposite directions around the support position of the mounting board.
Then, by placing both feet on the left and right sides of the mounting board, the user receives vibration stimulation on the whole body or a part of the body, and the contraction and expansion of the muscle are repeated. Moreover, when a user continues standing on the mounting board which vibrates, a user's leg is trained and a sense of balance improves.

A conventional vibration device for body stimulation includes an inverter that drives a three-phase induction motor, and vibrates up and down at a frequency of 5 Hz to 30 Hz.
“Vibration stimulation training device G-900”, [online], [searched on September 5, 2006], Internet <URL: http://www.elkc.co.jp/products/G900.pdf> “Diet end fitness”, [online], [searched September 5, 2006], Internet <URL: http://www.diet-end.com/fitness/merit.html>

A conventional vibration device for body stimulation is configured to transmit the output of a motor to the left side (or right side) of the mounting board. For this reason, vertical vibration of the left side (or right side) of the mounting board to which the output of the motor is directly applied, and right side (or left side) of the mounting board to which the output of the motor is not directly applied. May be asymmetric with respect to the support position of the mounting board. That is, the balance of the vibration of the mounting board is deteriorated, and the left and right harmonic vertical vibrations cannot be realized.
In order to solve this problem, it is conceivable to transmit the vertical movements in opposite directions to the left side and right side of the mounting board, respectively, but the vertical movement to be given to the left side and right side of the mounting board. It is difficult to equalize the sizes of the signals and to match the timing of giving the vertical movement.

Moreover, since the conventional vibration device for body stimulation generates a rotational motion with a required frequency using a three-phase induction motor and an inverter, it is difficult to generate a vertical vibration with a frequency of less than 5 Hz.
However, for a user whose body is extremely debilitating, vertical vibration at a frequency of 5 Hz or more tends to be an excessive stimulus, which may put a burden on the body. For this reason, there is a need for a vibration device for body stimulation that gives the body a lower-speed vertical vibration (for example, a vertical vibration of about 2 Hz, which is the frequency of walking of the human body).

  Furthermore, since the conventional vibration device for body stimulation includes a rectangular mounting board that is long in the left-right direction, or has a mounting board for each of the left foot and the right foot, for example, open both legs back and forth. It is difficult to use on the mounting board.

  The present invention has been made in view of such circumstances, and its main purpose is to perform alternating linear motion in one side direction and the other side direction on a mounting board that swings in an arc shape around the rotation center axis. The vibration device for body stimulation that can improve the balance of the swinging of the mounting board and realize the harmonic vertical vibration between one side part and the other side part of the mounting board by adopting the transmission structure. Is to provide.

  Another object of the present invention is to provide a vibration device for body stimulation that can easily obtain low-speed vertical vibration by using a brushless DC motor.

  Another object of the present invention is to provide a vibration device for body stimulation that allows a user to be placed on the placement board in various postures by using a disk-like placement board.

  Still another object of the present invention is that the support mechanism of the mounting board uses a rotating shaft portion supported by a bearing and a connecting member, and the transmission mechanism includes a rotating shaft portion, a cam follower, and a cam groove. By using it, it is providing the vibration apparatus for body stimulation of a simple structure.

  The vibration device for body stimulation according to the first aspect of the present invention is such that one side portion and the other side portion of the mounting board which are arranged substantially horizontally to place the body vibrate up and down in opposite directions. A vibration device for body stimulation that swings the mounting table, wherein the mounting table is disposed at a horizontal center position of the mounting table, and is a horizontal axis orthogonal to the horizontal direction. A support mechanism for supporting the mounting table so as to be able to swing in an arc around the center, a motor, and a rotational movement generated by the motor in one lateral direction of the mounting table and A transmission mechanism that converts the linear motion into alternate linear motion in the other direction and transmits the linear motion to the mounting table.

  The vibration device for body stimulation according to the second invention is characterized in that the motor is a brushless DC motor.

  In the vibration device for body stimulation according to the third aspect of the present invention, the mounting board is disk-shaped.

  In the vibration device for body stimulation according to the fourth aspect of the present invention, the support mechanism is substantially horizontal at the center position in the lateral direction of the mounting board and below the mounting board so that the axial length direction is orthogonal to the horizontal direction. A rotating shaft portion that is rotatably supported by a plurality of bearings, the rotating shaft portion and the mounting plate, and the mounting plate is arcuate around the rotating shaft portion. And a connecting member that is connected so as to be able to oscillate, and the transmission mechanism is arranged substantially parallel to the lower side of the rotating shaft portion, and the rotational motion is transmitted to rotate. A rotating shaft portion, a cam follower attached to the rotating shaft portion by being decentered by a predetermined amount with respect to the rotation center of the rotating shaft portion, and engaging with the cam follower, and a lateral dimension of the cam follower is The center of the connecting member in the horizontal direction so that it corresponds to the dimension and is longer than the dimension in the vertical direction And having a cam groove formed in.

In the first invention, the placing board that is arranged substantially horizontally for placing the body is supported by the support mechanism, so that the placing board swings in an arc shape (that is, swings like a pendulum). Move). Here, the mounting board is disposed at a central position in the horizontal direction of the mounting board, and swings about a rotation center axis that is substantially horizontal and orthogonal to the horizontal direction.
The rotational motion generated by the motor is converted into alternating linear motion in one lateral direction and the other lateral direction of the mounting board by the transmission mechanism, and transmitted to the mounting board.
The placement board to which the linear motion in one side direction of the placement board is transmitted swings in an arc shape in one direction around the rotation center axis, and at this time, one side portion moves upward (or downward). The other side moves downward (or upward). Next, the mounting board to which the linear movement in the other side direction of the mounting board is transmitted swings in an arc shape in the reverse direction around the rotation center axis, and at this time, one side portion is downward (or upward). The other side moves upward (or downward).
That is, the horizontal side one side and the other side of the mounting board vibrate up and down in opposite directions.

In the second aspect of the invention, the rotational motion generated by the brushless DC motor is converted into alternating linear motion in the lateral direction and transmitted to the mounting board, and the mounting board swings in an arc around the rotation center axis. By moving, the one side part and the other side part of the mounting board in the horizontal direction vibrate up and down in opposite directions.
Brushless DC motors easily generate rotational motion with a frequency of less than 5 Hz. Further, the rotation control of the brushless DC motor is easy, and a rotational motion with a desired frequency can be easily obtained.

  In the third aspect of the invention, the user is placed on a disk-like mounting board. In this case, the user places both feet on one side portion and the other side portion in the horizontal direction where vertical vibration of the mounting board is performed, or both feet on one side portion and the other side portion in the direction intersecting the horizontal direction, for example. Put on.

In the fourth aspect of the invention, the rotation shaft portion of the support mechanism is rotatably supported by the plurality of bearings. The rotating shaft portion is disposed substantially horizontally below the mounting board at the center position in the horizontal direction of the mounting board so that the axial length direction is orthogonal to the horizontal direction. The pivot shaft and the mounting board are coupled so that the mounting board can swing in an arc around the pivot shaft. That is, the rotation center axis of the mounting board is equal to the rotation center axis of the rotation shaft portion.
The transmission mechanism includes a rotation shaft portion, a cam follower, and a cam groove. The rotation shaft portion is disposed substantially parallel to the lower side of the rotation shaft portion of the support mechanism, and transmits the rotational motion of the motor. Rotate.
The cam follower is attached to the rotation shaft portion by being eccentric by a predetermined amount with respect to the rotation center of the rotation shaft portion, and performs eccentric rotation with the rotation of the rotation shaft portion to which the rotational motion of the motor is transmitted (that is, “sway” ").

The cam follower and the cam groove are engaged with each other, and the cam groove has a lateral dimension corresponding to the dimension of the cam follower and a vertical dimension longer than the dimension of the cam follower. For this reason, the cam follower that rotates eccentrically inside the cam groove abuts on the lateral side surface of the cam groove and moves laterally with respect to this side surface (specifically, one lateral direction and the other lateral direction). (Alternate linear motion), but not vertical motion.
Such a cam groove is formed in the laterally central portion of the connecting member.
For this reason, by the eccentric rotation of the cam follower, alternating linear motion in one lateral direction and the other lateral direction is transmitted to the connecting member, and this linear motion is transmitted to the mounting board via the connecting member. In addition, the linear motion in one direction transmitted to the mounting board and the linear motion in the other direction transmitted to the mounting board are approximately equal in magnitude.
Here, since the rotation shaft portion can be supported in a balanced manner in the axial length direction by a plurality of bearings, the rotation shaft portion is prevented from unnecessarily swinging in the axial length direction.

From the above, the mounting board to which the linear motion in one side direction of the mounting board is transmitted swings in an arc in one direction around the rotating shaft part, and at this time, one side part is upward (or downward) ) And the other side portion moves downward (or upward) by a movement amount substantially the same as the movement amount of the one side portion. Next, the mounting board, to which the linear motion in the other direction of the mounting board is transmitted, swings in an arc in the reverse direction around the rotating shaft, and at this time, one side moves downward (or upward). Then, the other side portion moves upward (or downward) by a movement amount substantially the same as the movement amount of the one side portion.
That is, the horizontal side one side part and the other side part of the mounting board vibrate up and down harmoniously in opposite directions.

In the case of the vibration device for body stimulation according to the first aspect of the invention, in order to transmit the alternating linear motion in one side direction and the other side direction to the mounting board that swings in an arc shape around the rotation center axis, The vertical vibration of one side and the vertical vibration of the other side are substantially equal amounts of vertical vibration in opposite directions. That is, it is possible to improve the balance of the swing of the mounting board and realize a harmonic vertical vibration between the one side part and the other side part of the mounting board.
As a result, for example, harmonic vibration stimulation can be applied to the left and right sides of the user's body, the muscles can be stretched and contracted, the user's legs and hips can be trained, and the sense of balance can be improved.
Also, for example, there is no need to transmit vertical movements in opposite directions to one side and the other side of the mounting board, and the magnitude of the vertical movement to be given to the left side and right side of the mounting board. And further, it is not necessary to match the timing for applying the vertical motion, so that the vibration device for body stimulation can be configured easily.

In the case of the vibration device for body stimulation according to the second aspect of the invention, a low-frequency rotary motion can be generated using a brushless DC motor, and a low-speed vertical vibration can be generated using this rotary motion. The user can be given up-and-down vibration of about 2 Hz, which is the frequency of. As a result, it is possible to give an appropriate stimulus to a user whose body is extremely debilitating without imposing a burden on the body.
Further, since the brushless DC motor does not generate mechanical and electrical noise, it can suppress adverse effects on other parts (for example, a control part) of the vibration device for body stimulation.

  In the case of the vibration device for body stimulation according to the third aspect of the invention, since the user can be placed on the mounting board in various postures, various vibration stimulations can be given to the user's body. That is, the vibration device for body stimulation can be used flexibly.

  In the case of the vibration device for body stimulation according to the fourth aspect of the invention, the support mechanism and the mounting for supporting the mounting board using the rotating shaft portion, the connecting member, the rotating shaft portion, the cam follower, the cam groove, and the like supported by the bearing. It is possible to simply configure a transmission mechanism that transmits the required motion to the panel. For this reason, the vibration device for body stimulation can be manufactured at low cost, and the vibration device for body stimulation having a simple configuration can be easily maintained.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.

FIG. 1 is a perspective view showing an appearance of a vibration device 1 for body stimulation according to the present invention.
FIG. 2 is a schematic side view showing the configuration of the vibration device 1 for body stimulation.
The body stimulating vibration device 1 includes a box-shaped device main body 11 installed on a substantially horizontal floor G indoors.
One side of the apparatus body 11 in the horizontal direction is a box 11a having a rectangular shape in plan view, and the other side is a box 11b having a hexagonal shape in plan view, and the box 11a and the box 11b are integrally provided. The thickness (or height) of the box 11b is larger than the thickness (or height) of the box 11a.
Below, the box body 11a and the box body 11b juxtaposed direction of the apparatus main body 11 are called the front-back direction or the vertical direction, the box body 11a side is called this side, and the box body 11b side is called the back side. Further, a horizontal direction orthogonal to the front-rear direction (or vertical direction) is referred to as a left-right direction or a horizontal direction, and a vertical direction is referred to as an up-down direction.

A plurality of casters 111, 111,... For allowing the user to move the body stimulating vibration device 1 by hand is provided on the bottom outer surface (hereinafter referred to as the bottom surface) of the apparatus main body 11. Further, a plurality of legs 112, 112,... For installing the body stimulating vibration device 1 on the floor G are provided on the bottom surface of the device body 11.
When the vibration device 1 for body stimulation is not moved, the height of the legs 112, 112,... (The protruding length of the legs 112, 112,... From the bottom surface of the apparatus main body 11) is equal to that of the casters 111, 111,. It is larger than the protruding length from the bottom surface of the apparatus main body 11, and the vibration device 1 for body stimulation is stably installed on the floor G.

On the top surface of the box body 11a of the apparatus main body 11, a disk-shaped mounting board 2 for mounting the user's body is arranged substantially horizontally, and the diameter of the mounting board 2 is about 500 mm. is there.
Further, a pipe-shaped handrail 12 for a user to hold is provided on the top surface of the apparatus body 11 on the box body 11b side. The handrail 12 includes three leg portions 121, 121, and 122. Of these, the two leg portions 121 and 121 are erected on the top surface of the innermost portion of the box 11a. 122 is erected on the top surface of the innermost part of the box 11b, and the ends of the leg parts 121, 122, 121 are connected in this order, and a U-shaped connecting part 123 in a plan view is horizontally mounted.
On the connecting portion 123, an operation box 15 used for a user to operate the vibration device 1 for body stimulation is provided. The operation box 15 includes a display screen 151 and a touch panel 152 stacked on the display screen 151.

  Inside the box 11b of the apparatus body 11, there is provided a motor M using a brushless DC motor incorporating a motor driver. The motor M generates a rotational motion by rotating an output shaft (not shown) of the motor M in one direction. The motor M using the brushless DC motor can rotate at a low speed with a high torque. In the present embodiment, the frequency of the rotational motion is set to 0. 0 depending on the level of the voltage applied to the motor M. It changes linearly in the range of 3 Hz or more and 30 Hz or less. Further, while the substantially constant voltage is applied, the motor M continues to generate a rotational motion with a substantially constant frequency corresponding to the applied voltage.

The output of the motor M is given to the mounting board 2, and the mounting board 2 swings. For this purpose, the apparatus main body 11 includes a support mechanism 3 and a transmission mechanism 4 described later.
Further, inside the box 11b, there are a motor M, a PLC (programmable logic controller) 13 as a control device for the vibration device 1 for body stimulation, and a D / A converter for converting a digital signal into an analog signal. D / A board 14 is provided.

The PLC 13 uses a sequencer (registered trademark). The PLC 13 is connected to the operation box 15 via wiring inserted into the hollow leg portion 122, and is also connected to the D / A board 14 via wiring in the box 11b. . The D / A board 14 is also connected to the motor M and functions as an interface between the PLC 13 and the motor M.
Such a PLC 13 controls the operation box 15 to display an image indicating the operation status of the vibration device 1 for body stimulation, an operation instruction for the user, and the like on the display screen 151, and a soft key for receiving a user operation. When a soft key provided on the touch panel 152 is operated, an operation corresponding to the operated soft key is performed.

The user operates while visually recognizing the operation box 15, so that the length of the swing time of the mounting board 2 (for example, 10 minutes) and the swinging speed of the mounting board 2 are reduced with respect to the vibration device 1 for body stimulation. The strength (that is, the height of the oscillation frequency, in other words, the speed of vertical vibration described later) is set.
Such a setting may be, for example, a configuration in which a user inputs a required numerical value, or a configuration in which one is selected from a plurality of predetermined courses (for example, a combination of swing time and swing strength). Good. Further, the user uses the operation box 15 to input a swing start command, a forced end command, and the like to the body stimulation vibration device 1.

The PLC 13 stores in the built-in data register (not shown) the data of the change pattern of the frequency of the rotational motion generated by the motor M, and performs the combination, compression, expansion, etc. of the change pattern, and the user desires. According to the swing time and the strength of the swing, data of a frequency change pattern at the swing time is generated, and the frequency of the rotational motion is changed to the motor M via the D / A board 14 according to the generated data. The frequency signal to be output is output.
Here, the human skin sensation tends to feel bored due to familiarity when the same stimulus is applied for 20 seconds to 30 seconds or more. Therefore, the change pattern is changed so that the frequency is changed within 20 seconds to 30 seconds. It is desirable to generate data.

The frequency signal output from the PLC 13 is a digital signal, and this digital signal is converted into an analog signal by the D / A board 14.
The motor M to which the frequency signal is given from the PLC 13 via the D / A board 14 generates a rotational motion having a frequency corresponding to the given frequency signal.
Note that a configuration in which the user can program a frequency change pattern in the PLC 13 via the operation box 15 may be used.

Furthermore, a sensor for detecting the operating state of the motor M (for example, the number of rotations of the output shaft) is attached to the motor M. Based on the detection result of this sensor, the PLC 13 swings the mounting board 2 at the current time. Is displayed on the display screen 151 of the operation box 15. For this reason, on the display screen 151, a display corresponding to the actual swing strength of the mounting board 2 is used instead of the swing strength (programming swing strength) set by the user. . The display scene 151 also displays the remaining time of the swinging time of the mounting board 2.
Note that the configuration may be such that the motor M, the operation box 15 and the like are controlled not by the PLC 13 but by using the MPU, memory, etc. mounted on the D / A board 14, but the PLC 13 is more expensive at a lower cost. It is possible to obtain various abilities and control various contents.

Below, the support mechanism 3 and the transmission mechanism 4 are demonstrated.
3, 4, and 5 are a front view, a plan view, and a side view showing a main part of the vibration device 1 for body stimulation, respectively.
In addition to the motor M, the support body 3 and the transmission mechanism 4 are built in the main body 11 of the vibration device 1 for body stimulation. Further, the apparatus main body 11 is erected on the inner surface of the bottom of the apparatus main body 11 so that two inner walls 16 and 16 each having a rectangular shape when viewed from the front face each other substantially parallel to each other and spaced apart by an appropriate length in the front-rear direction. .

The support mechanism 3 supports the mounting board 2 so that the mounting board 2 can swing in an arc shape (in the direction of the arrow in FIG. 3) about the rotation center axis 3a (FIG. 3). The rotation center shaft 3a is the rotation center axis of the rotation shaft portion 31, and is spaced apart from the mounting board 2 at the horizontal center position of the mounting board 2, and is substantially horizontal and vertical (that is, the horizontal direction). (Orthogonally).
Specifically, as shown in FIGS. 3 to 5, the support mechanism 3 includes a rotation shaft portion 31, two bearings 32 and 32 that rotatably support the rotation shaft portion 31, and And a connecting member 33 that connects the rotating shaft part 31 and the mounting board 2.

The bearings 32 and 32 each use a bearing, and are fixed to the opposing surfaces of the two inner walls 16 and 16.
The rotating shaft portion 31 is arranged substantially horizontally below the mounting board 2 at the center position in the horizontal direction of the mounting board 2 so that the axial length direction is along the vertical direction (that is, orthogonal to the horizontal direction). Further, both ends of the rotation shaft portion 31 are rotatably supported by bearings 32 and 32.
In this way, the rotating shaft portion 31 is supported at both ends by the bearings 32, 32, and by extension, the inner walls 16, 16, so that the rotating shaft portion 31 is prevented from unnecessarily swinging in the vertical direction. Then, the swing is transmitted to the mounting board 2 and the mounting board 2 is prevented from unnecessarily swinging in the vertical direction.

The connecting member 33 is a plate-like member having a trapezoidal shape that is substantially symmetrical from the left to the right. The upper end portion of the connecting member 33 is fixed to the bottom surface of the mounting board 2 in a state where the horizontal center position of the connecting member 33 and the horizontal center position of the mounting board 2 are aligned.
A through hole is formed between the upper portion of the connecting member 33 and the central portion in the vertical direction so as to penetrate the connecting member 33 in the vertical direction, and the central portion of the rotary shaft portion 31 is fitted and fixed to the through hole. Has been. Here, the lateral position of the rotation center shaft 3a and the lateral center position of the mounting board 2 are substantially matched.
In this way, the connecting member 33 connects the rotating shaft part 31 and the mounting board 2, so that the mounting board 2 can swing in an arc around the rotating shaft part 31.

On the other hand, the transmission mechanism 4 converts the rotational movement generated by the motor M into alternating linear movements in the left and right directions (that is, alternating linear movements in the lateral direction on one side and the other side of the mounting board 2). The data is converted and transmitted to the mounting board 2.
Specifically, the transmission mechanism 4 includes a rotation shaft portion 41, a cam follower 42, and a cam groove 43 that are disposed substantially parallel to the lower side of the rotation shaft portion 31 of the support mechanism 3.
The rotary shaft portion 41 is rotatably supported by a support wall 17 erected between the inner walls 16 and 16 and bearings 419 and 419 fixed to the inner wall 16 on the motor M side.
The rotation shaft portion 41 is supported at the center by a timing pulley 411, 412, 413, 414, a timing belt 415, 416, and a bearing 418 using a bearing so as to be rotatable. The rotating motion generated by the motor M is transmitted through the transmission shaft 417 along the shaft, and rotates at a frequency half that of the rotational motion.

A timing pulley 411 is coaxially attached to the end of the rotating shaft 41 on the motor M side. A timing belt 415 is suspended between the timing pulley 411 and the timing pulley 412, and the timing pulley 412 and the timing pulley 413 are coaxially attached to both ends of the transmission shaft 417, respectively. A timing belt 416 is suspended between the timing pulley 413 and the timing pulley 414, and the timing pulley 414 is coaxially attached to the output shaft of the motor M.
The pulley ratio of the timing pulleys 411, 412 and 414 is 1: 1, and the pulley ratio between the timing pulley 413 and the timing pulley 414 is 2: 1.

The rotational motion generated by the motor M is directly transmitted to the timing pulley 414 from the output shaft of the motor M, and is transmitted from the timing pulley 414 to the timing pulley 413 via the timing belt 416, whereby the frequency becomes 1 /. 2 and the torque is doubled. The rotational motion transmitted to the timing pulley 413 is transmitted to the timing pulley 412 via the transmission shaft 417, and further transmitted from the timing pulley 412 to the rotary shaft portion 41 via the timing belt 415 and the timing pulley 411.
At the end of the rotating shaft 41 opposite to the motor M, a bottomed cylindrical cam follower 42 has a predetermined amount of the center axis of the cam follower 42 with respect to the rotating center axis of the rotating shaft 41 (specifically, 1 mm) and is attached to the rotary shaft portion 41 in an eccentric manner. In this case, the cam follower 42 is eccentrically fixed to the rotation shaft portion 41 by forming required screws on the outer surface of the rotation shaft portion 41 and the inner surface of the cam follower 42.
Such a cam follower 42 is fitted in and engaged with the cam groove 43.

  The cam groove 43 is a through hole formed in the connecting member 33 of the support mechanism 3 such that the lateral dimension corresponds to the outer diameter of the cam follower 42 and is longer than the outer diameter of the cam follower 42 in the vertical direction. The formation position of the cam groove 43 in the connecting member 33 is formed in the central portion in the lateral direction of the connecting member 33 from the central portion in the vertical direction of the connecting member 33 to the lower portion. Here, the lateral position of the rotation center axis of the rotation shaft portion 41, the lateral position of the rotation center shaft 3a of the rotation shaft portion 31, and the lateral center position of the cam groove 43 are substantially matched. It is.

In the transmission mechanism 4 configured as described above, the outer peripheral surface of the cam follower 42 slides on the inner peripheral surface in the lateral direction of the cam groove 43 in accordance with the rotation of the rotating shaft portion 41 to which the rotational motion of the motor M is transmitted. However, the cam follower 42 rotates eccentrically (that is, “shakes”).
At this time, alternate linear motions in the left and right directions are transmitted from the cam follower 42 to the inner circumferential surface of the cam groove 43 in the lateral direction, and thus to the connecting member 33 in which the cam groove 43 is formed. Alternate linear motions in the right and left directions are transmitted from the connecting member 33 to the mounting board 2.
However, the vertical motion is not transmitted from the cam follower 42 to the connecting member 33 in which the cam groove 43 is formed.

6 and 7 are front views for explaining the operation of the vibration device 1 for body stimulation, and explain the swinging of the mounting board 2. Below, the case where the rotating shaft part 41 rotates right is illustrated.
FIG. 6A shows a case where the rotation center axis 41a of the rotation shaft portion 41 and the rotation center axis 42a of the cam follower 42 are arranged in the vertical direction with the rotation center axis 42a on the lower side. . In this case, one side portion (hereinafter referred to as a transmission portion 42b) farthest from the rotation center axis 41a of the cam follower 42 is directed downward, and the transmission portion 42b and the inner peripheral surface of the cam groove 43 are not in contact with each other.
For this reason, the horizontal linear motion is not transmitted from the cam follower 42 to the connecting member 33, and the connecting member 33 is held in the neutral position. As a result, the mounting board 2 is kept horizontal.

As the rotation shaft portion 41 rotates, as shown in FIG. 6B, the rotation center shaft 41a of the rotation shaft portion 41 and the rotation center shaft 42a of the cam follower 42 are left and right with the rotation center shaft 42a on the left side. Arranged. In this case, the transmission part 42b of the cam follower 42 is directed leftward, and the transmission part 42b and the inner peripheral surface on the left side of the cam groove 43 are in contact with each other so that the transmission part 42b presses the inner peripheral surface on the left side of the cam groove 43. .
Therefore, a linear motion in the left direction (in the direction of the white arrow in FIG. 6B) is transmitted from the cam follower 42 to the connecting member 33, and the connecting member 33 rotates clockwise about the rotation shaft portion 31 (FIG. 6). (B) rotate in the direction of the middle arrow). For this reason, the mounting board 2 swings in an arc shape to the right about the rotation shaft part 31, and at this time, the left side part 2L of the mounting board 2 moves upward, and the right side part 2R is moved to the left side part 2L. Move downward by the same amount of movement as

Further, along with the rotation of the rotation shaft portion 41, as shown in FIG. 7A, the rotation center shaft 41a of the rotation shaft portion 41 and the rotation center shaft 42a of the cam follower 42 are vertically moved with the rotation center shaft 42a facing upward. Arranged in the direction. In this case, the transmission part 42 b of the cam follower 42 faces upward, and the transmission part 42 b does not contact the inner peripheral surface of the cam groove 43.
For this reason, the horizontal linear motion is not transmitted from the cam follower 42 to the connecting member 33, and the connecting member 33 is held in the neutral position. As a result, the mounting board 2 is kept horizontal.

As the rotation shaft 41 further rotates, as shown in FIG. 7B, the rotation center shaft 41a of the rotation shaft portion 41 and the rotation center shaft 42a of the cam follower 42 have the rotation center shaft 42a on the right side. Arranged in the left-right direction. In this case, the transmission part 42 b of the cam follower 42 is directed to the right side, and the transmission part 42 b and the inner peripheral surface on the right side of the cam groove 43 come into contact with each other so that the transmission part 42 b presses the inner peripheral surface on the right side of the cam groove 43. .
Therefore, a linear motion in the right direction (in the direction of the white arrow in FIG. 7B) is transmitted from the cam follower 42 to the connecting member 33, and the connecting member 33 rotates counterclockwise around the rotating shaft portion 31 (FIG. 7). (B) rotate in the direction of the middle arrow). For this reason, the mounting board 2 swings arcuately leftward about the rotation shaft part 31, and at this time, the left side part 2L of the mounting board 2 moves downward, and the right side part 2R is moved to the left side part 2L. It moves upward by the same movement amount as the movement amount of. The amount of movement at this time is equal to the amount of movement related to the rightward swing of the mounting board 2 shown in FIG.

When the rotating shaft portion 41 further rotates, the mounting board 2 is kept horizontal again as shown in FIG.
As described above, the support mechanism 3 and the transmission mechanism 4 swing the mounting board 2 so that the left side 2L and the right side 2R of the mounting board 2 vibrate up and down harmoniously in opposite directions. In other words, the mounting board 2 is a pendulum centered on the rotation center shaft 3 a of the rotation shaft portion 31.

When using the vibration device 1 for body stimulation as described above, since the mounting board 2 has a disc shape, the user can place the left side part 2L and the right side part 2R of the mounting board 2 as shown in FIG. The left foot HL and the right foot HR are placed on the placement board 2 to stand (sideways), or the left foot HL and the right foot HR are placed on the front side and the rear side of the placement board 2. Stand on top.
Then, the user operates the operation box 15 to activate the vibration device 1 for body stimulation.
When standing on the mounting board 2, the user may hold the handrail 12 with both hands with the front of the body facing the handrail 12, or the handrail with one hand with the side of the body facing the handrail 12. 12 may be held. Further, the handrail 12 may not be held.
Further, the user may place the left foot HL and the right foot HR on the placement board 2 while lying on the floor G or sitting on a chair installed on the floor G. Furthermore, the user may place the left hand and the right hand on the placement board 2 instead of the left foot HL and the right foot HR.

By the way, for example, a user who places the left foot HL and the right foot HR on the left side 2L and the right side 2L of the mounting board 2 widens the leg width and places it on the outer peripheral part of the mounting board 2, or narrows the foot width. Mounted on the center of the mounting board 2. Here, the vibration of a larger amplitude is given to the user's body when it is placed near the outer periphery than when it is placed near the center.
Various vibration stimuli are applied to the user's body in accordance with the user's standing position, body orientation, and the like on the mounting board 2 as described above.

Such a body stimulating vibration device 1 is installed in a home, an osteopathic clinic, or the like, and swings the mounting board 2 with a maximum amplitude of 4.5 mm at a frequency of 15 Hz or less (for example, in a range of 2 Hz to 15 Hz).
Since the placement board 2 moves like a pendulum, the placement board 2 itself has an improved balance of swinging, and the left side portion 2L and the right side portion 2R vibrate up and down harmoniously.

  The user's body on the mounting board 2 is activated by being given such vibration stimulation. Specifically, muscles such as the lower limbs, abdomen, and lower back are repeatedly stretched and contracted, and the user's body performs passive muscle contraction movements, increasing blood circulation to the muscles. Flexibility is improved. Also, by trying to maintain a certain posture with respect to the applied vibration stimulus, the coordination between nerves and muscles is enhanced and the sense of balance of the body is improved.

Furthermore, since the mounting board 2 can swing at a low frequency of about 2 Hz, it is possible to give the user a low-speed vibration stimulus equivalent to a human walking speed. For this reason, the overload with respect to a user's cardiopulmonary function by a high-speed vibration stimulus is suppressed. Furthermore, even a user who easily falls down can safely stand on the mounting board 2.
Further, by making the oscillation frequency of the mounting board 2 substantially coincide with the resonance frequency of the human body, it is possible to give a stimulus to the user's legs to relax the user.

As a result of the above, the vibration device 1 for body stimulation is suitable not only for dieting and training for healthy persons and athletes, but also for muscle training for the weak and for those with difficulty walking, etc. Care prevention and fall prevention effects, massage effects by relaxation stimulation, etc. are also obtained.
Further, since the motor M is brushless, it has a long service life and does not generate electrical and mechanical noises, and therefore does not adversely affect the PLC 13, the operation box 15, and the like. Furthermore, since the structure of the support mechanism 3 and the transmission mechanism 4 is simple, maintenance is also easy.

It is a perspective view which shows the external appearance of the vibration apparatus for body stimulation which concerns on this invention. It is a typical side view showing the composition of the vibration device for body stimulation concerning the present invention. It is a front view which shows the principal part of the vibration device for body stimulation which concerns on this invention. It is a top view which shows the principal part of the vibration device for body stimulation which concerns on this invention. It is a side view which shows the principal part of the vibration device for body stimulation which concerns on this invention. It is a front view explaining operation | movement of the vibration apparatus for body stimulation which concerns on this invention. It is a front view explaining operation | movement of the vibration apparatus for body stimulation which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vibration apparatus for body stimulation 2 Mounting board 2L Left side part (one side part)
2R right side (other side)
DESCRIPTION OF SYMBOLS 3 Support mechanism 3a Rotation center shaft 31 Rotation shaft part 32 Bearing 33 Connection member 4 Transmission mechanism 41 Rotation shaft part 42 Cam follower 43 Cam groove M Motor (brushless DC motor)
HL Left foot (body)
HR Right foot (body)

Claims (4)

A vibration device for body stimulation that swings the mounting board so that one side and the other side of the mounting board that are arranged substantially horizontally to place the body vibrate up and down in opposite directions. Because
The mounting table is arranged at the center position in the lateral direction of the mounting table, and can be swung in an arc shape around a rotation center axis that is substantially horizontal and orthogonal to the horizontal direction. A support mechanism for supporting the mounting table;
A motor,
A transmission mechanism that converts the rotational motion generated by the motor into alternating linear motions in one lateral direction and the other lateral direction of the mounting table, and transmits them to the mounting table. Vibration device for body stimulation.   The vibration device for body stimulation according to claim 1, wherein the motor is a brushless DC motor.   The vibration device for body stimulation according to claim 1 or 2, wherein the mounting board is disk-shaped. The support mechanism is
At the center position in the horizontal direction of the mounting table, it is arranged substantially horizontally below the mounting table so that the axial length direction is orthogonal to the horizontal direction, and is rotatably supported by a plurality of bearings. A rotating shaft portion,
A connecting member that connects the rotating shaft portion and the mounting plate so that the mounting plate can swing in an arc around the rotating shaft portion;
The transmission mechanism is
A rotating shaft portion that is arranged substantially parallel to the lower side of the rotating shaft portion and is rotated by transmitting the rotational motion;
A cam follower attached to the rotary shaft portion with a predetermined amount eccentric with respect to the rotation center of the rotary shaft portion;
A cam groove that is engaged with the cam follower and that is formed in a laterally central portion of the connecting member so that a lateral dimension thereof corresponds to the dimension of the cam follower and is longer than the dimension in the vertical direction. The vibration device for body stimulation according to claim 1, wherein the vibration device is for body stimulation.

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