JP2566287B2 - Massage machine - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

TECHNICAL FIELD The present invention relates to a massage machine that causes a treatment element attached to an outer ring via an arm to perform a hitting massage operation by reciprocally rotating an outer ring with respect to an inner ring within a predetermined angle range.

[Prior art]

US Pat. No. 3,633,571 discloses a massager having a pair of ring-shaped massaging elements that are mounted on a main shaft that is rotationally driven at intervals. The treatment element attached in an eccentric and inclined state with respect to the main shaft,
A massage operation is performed by the rotation of the main shaft. However, with the treatment element having such a shape, the amount of protrusion of the treatment element from the main shaft is determined only by the outer diameter and the eccentricity of the treatment element. When the outer diameter is increased, the curvature of the outer surface of the treatment element is reduced. Because the contact area with the body becomes large,
There is a problem that a so-called point massage of pressing the "pot" cannot be obtained, and even if the amount of eccentricity is increased, this is also the same because it is limited by the outer diameter. Therefore, when trying to massage the side surface or the shoulder of the neck with a treatment element that is set to an outer diameter that allows point massage, the main shaft hits the rear part of the neck, and sufficient massage cannot be obtained. Here, in Japanese Utility Model Publication No. 55-30488, an outer ring is mounted rotatably on a pair of inner rings that are eccentrically attached to the main shaft in a state of being eccentric in the same direction and inclined in opposite directions, and the base end is It is disclosed that the middle part of a pair of arms supported by a universal joint is connected to each outer ring and a treatment element is provided at the tip of these arms. In this massage machine in which the idling range of the outer ring with respect to the inner ring is restricted via the arm and the universal joint, when the main shaft is driven to rotate, the massage operation given to the user by the outer ring in the conventional example described above. The massager at the tip of the arm performs almost the same operation as the above, and since there is no special restriction on the length of the arm, it is a configuration that can satisfy both point massage and shoulder massage. ing. Moreover, in the one shown here, since the base end of the arm is connected to the swing plate which is swing-driven through the universal joint, when the swing plate is swung, the treatment element is hit. It is capable of performing an operation similar to a massage, and is an extremely excellent massage machine.

[Problems to be Solved by the Invention]

However, if you think mainly about Tataki massage,
The inclination of the pair of inner rings with respect to the main shaft causes the following problems. That is, in performing the tapping massage, the interval between the pair of massaging elements in the tapping massage is different depending on the position where the rotation stop position of the inner ring that is inclined with respect to the main axis is, and therefore, This adjustment mechanism is provided with a separate width adjustment mechanism that can adjust the interval between a pair of treatment elements because it cannot hit the "vase" called "shoulder well" that is effective at stiff shoulders at both ends of the shoulder. I couldn't get a good hitting massage by not operating. The present invention has been falsified in view of such a point, and its object is to provide a point-to-point massage with a treatment element that allows a tap massage to be performed at a predetermined interval. (EN) Provided is a massage machine in which a pounding massage in a state of "0" can be obtained easily and without requiring complicated operations.

[Means for Solving the Problems]

The present invention, therefore, is directed to an inner ring that is attached to the main shaft as an incline, an outer ring that is rotatably attached to the outer periphery of the inner ring, a treatment element that is attached to the outer ring via an arm, and an outer ring that is the inner ring. A swing drive means for reciprocatingly rotating within a predetermined angle range to strike a treatment element provided on the arm, a rotation drive means for rotating the main shaft, and a detection means for detecting the rotational position of the inner ring. Along with
When the swing drive means is operated, the rotation drive means is operated based on the output of the detection means, and the control means is provided for setting the rotational position of the inner ring to a predetermined position. [Operation] According to the present invention, when performing a pounding massage, the rotational position of the inner ring that is inclined with respect to the main axis is automatically set to a predetermined position, so the interval between the treatment elements in the pounding massage becomes constant. It is what [Examples] The present invention will be described in detail below based on illustrated examples. This massage machine is installed in the backrest of a chair or in a bed, but in the illustrated example, as shown in FIG. 5, it is shown that it is installed in the backrest of a chair that is freely reclinable. This chair is provided with a seat 82 and an armrest 83 on a lower frame 81 framed by a pipe, and a lower part of a frame 85 of a backrest 84 is pivotally attached to the lower frame 81, and a gas spring is provided between the lower end of the frame 85 and the lower frame 81. By attaching 86, the backrest 84 can be reclined by expanding and contracting the gas spring 86 by operating the lever 87 provided on the side of the armrest 83.
Each of the rails has a U-shaped cross section and a pair of rails 9 with open faces facing each other.
0,90 is stuck. Further, a headrest 88 is provided on the upper end of the backrest 84, and support bands 89 are provided in the up-down direction on both sides of the back surface of the cover sheet provided up to the headrest 88 on the front surface of the backrest 84. Racks 91, 91 are fixed to the opening edges of the pair of rails 90, 90, respectively, in the longitudinal direction, and the rollers 18 and the rack 91 roll between the rails 90, 90 between the rails 90, 90. A massage machine with a meshing pinion 17 is installed. As shown in FIG. 1, the massage machine is provided with a motor block 20 at one end and a speed reducer block 19 at the other end, and the rollers 18 and the pinion 17 driven to rotate are projectingly provided from these blocks 20 and 19. The main shaft 1 and the auxiliary shaft 13 are installed between the blocks 20 and 19. And both blocks 2
The auxiliary shaft 13 whose both ends are supported by 0, 19 has a pair of rotary plates 1 which are rotatable with respect to the auxiliary shaft 13.
A rotary shaft 12 parallel to the main shaft 1 and the auxiliary shaft 13 is attached via 5, 15 so that the rotary shaft 12 is rotatable around the auxiliary shaft 13. The rotary shaft 12, both ends of which are supported by the pair of rotary plates 15, 15, is rotatable with respect to the rotary plate 15. The motor housed in the motor block 20 drives the main shaft 1, the rotary shaft 12, and the pinion 17 to rotate, and also the auxiliary shaft 13
The rotary shaft 12 is driven to rotate around. That is, a driven shaft 31 disposed on the outer surface of the speed reducer block 19 is connected to a pulley 28 mounted on the output shaft of a motor protruding below the motor block 20 via a belt 29 and a pulley 30. Further, the driven shaft 31 and the reduction gear mechanism portion in the reduction gear block 19 are connected by the clutch 33, the pulleys 34, 36 and the belt 35. The speed reduction mechanism section (not shown) in the speed reducer block 19 is composed of a speed reduction section and a plurality of clutch sections. When the clutch 33 is engaged, the motor output is selected for the spindle 1 or the pinion 17. To communicate. The driven shaft 31 also includes a clutch 32, a pulley 37, a belt 38, and a pulley.
The worm wheel 41 mounted on the auxiliary shaft 13 is connected via the worm wheel 41 and the worm wheel 39.
A gear 42 integrated with the gear meshes with a gear 43 fixed to the rotary shaft 12. When the clutch 32 is connected, the motor output is given to the rotary shaft 12 via the above-mentioned members, and the rotary shaft 12 rotates about the shaft. Further, a feed screw 25 connected to the motor via pulleys 21 and 23, a belt 22 and a clutch 24 is provided on the outer surface of the motor block 20, and a feed nut 26 screwed to the feed screw 25 is provided. One of the pair of rotary plates 15 and 15 is connected by a link 16. When the feed screw 25 rotates at the motor output, the feed nut 26 that moves in the axial direction of the feed screw 25 moves the rotary plate 15 via the link 16, and as a result, is supported by the rotary plate 15. Rotating shaft 12
Rotates about the auxiliary shaft 13. By the way, a pair of inner rings 2, 2 are attached to the main shaft 1 at intervals. Both inner rings 2, 2 are eccentric to the main shaft 1 in the same direction by the same amount and are inclined in opposite directions, and by engaging with the protrusions 11 formed on the main shaft 1, the main shaft 1
The outer ring 3 and the outer ring 3, respectively, are arranged so as to rotate together with the main shaft 1 and to be slidable in the axial direction of the main shaft 1.
3 is mounted so that it can rotate freely. Further, on the outer peripheral surface of the non-eccentric portion of each inner ring 2, 2, the connecting arms 6, 6 projecting from the respective housings of the reduction gear block 19 and the motor block 20 are provided.
One end of each is connected to be freely rotatable. Middle portions of the arms 4, 4 are fixed to the outer rings 3, 3, respectively. Then, at the bent portion of the tip of each arm 4, the arm 4
A roller-shaped massaging element 5 which is freely rotatable is attached to each of the arms 4, and the other end of each arm 4 is connected to the rotary shaft 12 via a connecting link 8 and a bearing 70. The rotating shaft 12 here is formed as a pair of crankshafts 12a, 12b whose eccentric directions are opposite to each other are connected in the axial direction, and non-eccentric portions 12d, 12e at both ends are supported by the rotating plate 15. One end of the connecting link 8 is connected to the crankshaft 12a, and one end of the other connecting link 8 is connected to the crankshaft 12b.
And bearings 70, respectively. In the figure, 9 is the rotation axis
12 A connecting plate that connects the central non-eccentric portion 12c and the center of the auxiliary shaft 13 to prevent the rotation shaft 12 from being bent. The bearing 70, which is slidable in the axial direction of the rotating shaft 12, is formed as a sphere as is clear from FIG. 2, and the connecting link 8 engages one end of the connecting link 8 so as to enclose the bearing 70. Thus, the bearing 70 can be freely rotated in three dimensions, and the connecting portion between the other end of the connection link 8 and the arm 4 is also formed as a ball joint 44 so that the bearing is also rotated in three dimensions. It is designed to be free. Next, the operation will be described. When the main shaft is rotated by the motor, the inner shaft 2 that rotates together with the main shaft 1 is eccentric and inclined with respect to the main shaft 1. Therefore, the inner ring 2 is attached to the outer ring 3 that is freely rotatable. The treatment element 5 attached via the arm 4 has a rotation range of the outer ring 3 around the inner ring 2 regulated by the connecting link 8, so that the rotation of the main shaft 1 causes the treatment element 5 to move as shown in FIG. A movement that draws a three-dimensional locus indicated by l in FIG. 3, that is, a movement that changes the position in the vertical direction, the axial direction of the spindle 1, and the protruding direction from the spindle 1 is performed. Note that FIG. 3 shows a locus 1 when the treatment element 5 is viewed from the front. The pair of massaging elements 5, 5 that perform such movement symmetrically give a so-called "nerve massage" to the back surface of the user. The connecting link 8 connected to the arm 4 via the ball joint 44 is swung up and down and left and right as the inner ring 2 rotates, but the connecting link 8 and the rotary shaft 12 form a ball joint. Since the bearing 70 is connected as a spherical body, the treatment element 5 operates smoothly. By rotating the feed screw 25 by the motor, the rotary shaft is rotated around the auxiliary shaft 13 via the link 16 and the rotary plate 15.
When 12 is rotated, the arm 4 and the outer ring 3 are accompanied by this.
Rotates around the inner ring 2, and the treatment element 5 changes the amount of protrusion in the front direction in which the user's back surface is located. It is possible to obtain a massage of "fir tree" and a massage of "nervous fir" by reducing the amount of protrusion. When the rotating shaft 12 is rotated instead of the main shaft 1, the pair of crank shafts 12a and 12b of the rotating shaft 12 move the arm 4 via the connecting link 8, and the movement of the arm 4 at this time is Since the movement of reciprocating rotation with the outer ring 2 is around the stationary inner ring 2, the treatment element 4 at the tip of the arm 4 is almost vertical when viewed from the front though it depends on the position of the inner ring 2 as described later. It becomes a linear reciprocating motion in the direction, and a pounding massage is performed. The strength adjustment by rotating the feed screw 25 can also be obtained during this tapping massage. When the pinion 17 is rotated by the motor, the massage machine moves the chair backrest 84 up and down along the rail 90 by the engagement between the rack 91 and the pinion 17. Therefore, the position of the treatment element 5 can be changed up and down. Here, when the massaging element 5 is struck by the swinging driving means constituted by the rotary shaft 12 which is the crankshafts 12a and 12b, the bearing 70, the connecting link 8 and the ball joint 44, a massage of a bedworm is performed. If the rotational position of the inner ring 2, which is provided so as to be inclined with respect to the main shaft 1 in order to allow the child 5 to perform it, that is, the inclination direction of the inner ring 2 is not constant, as described above, the pair of The treatment elements 5, 5 interval and movement direction change. Therefore, in this massage machine, as shown in FIG. 2, a reed switch that is sensitive to the permanent magnet 52 attached to the rotating body 51 fixed to the main shaft 1 is formed.
A rotation position detection sensor S ₁ capable of detecting the rotation position of the inner ring 2 is provided. Next, the operation device 60 for instructing the operation of the treatment element 5 will be described. As shown in FIG. 6, the operation device 60, which is detachably attached to the armrest of the chair and is connected to the main body control unit and the power supply circuit D installed in the chair, is stored and operated. , "Stop" 3
Position-changing mode switch SW ₂ , "rolling",
Push-on type to select various massages of "firth up", "firth down", "tataki", "tataki rolling", which is a selection type switch SW _{30 to} SW in operation
_The switch SW ₃ composed of ₃₄ , the switches SW ₄ and SW ₅ for changing the position of the treatment element 5 up or down, and the rotary plate 15
By adjusting the angle of the arm 4 around the main axis 1 by rotating the arm, the margin of the treatment element 5 to the cover sheet side (arm projection amount)
With switches SW ₆ and SW ₇ for adjusting
Light emitting elements L ₁ , L ₂ , L _{30 to} L ₃₅ for operation display, buzzer Bz, light emitting element drive circuit A shown in FIG. 7, and each of the above switches
A control circuit CPU including a signal forming circuit B ₁ that creates a pulse code signal according to the operation of SW _{2 to} SW ₇ and sends it to the main body control unit, and a signal determination circuit B ₂ that determines the sent pulse code signal Equipped with ₁ . In addition, among various massages selected by the switch SW ₃ , “rolling” is performed by moving the massager up and down along the backrest of the chair without rotating the main shaft 1 and the rotary shaft 12, and thus the treatment element 5 is placed on the backrest. It shows rubbing and massaging the back of the human body leaning against 84.
The “rubbing up” and the “rubbing down” are obtained by the massage of the above-mentioned bean jam depending on whether the main shaft 1 is rotated in either direction. The main body control unit includes a signal discriminating circuit C ₂ that discriminates a signal sent from the control circuit CPU ₁ of the controller 60, a signal forming circuit C ₃ that transmits a signal to the controller 60, a timer circuit C ₄ , and an operation instruction circuit C. _A control circuit CPU _{2 including 1 and the} like, a motor drive circuit I that drives a motor M according to the output of the operation instruction circuit C ₁ , and a solenoid drive circuit H for controlling each clutch Vertical position detection circuit S for detecting vertical position
₃ (not shown), the rotational position detection detection circuit (sensor) S ₁ for detecting the rotational position of the inner ring 2, and the feed screw
The arm protrusion amount detection circuit S _{2 and the} like for detecting the amount of protrusion of the treatment element 5 by driving 25 are configured. Now, when explaining the outline of various operations performed according to the input to the operation device 60, the power switch SW ₁ (not shown)
Is turned on and the mode switch SW ₂ is switched from “retract” or “stop” to “operation”, the treatment element 5
Starts the rubbing motion at that position. To change the rubbing position, the switches SW ₄ and SW ₅ may be operated.
While the input from each switch SW ₄ , SW ₅ continues, the treatment element 5
Moves in the specified direction and resumes the seeing operation even when the hand is released from the switches SW ₄ and SW ₅ . If the switches SW ₆ and SW ₇ are operated, the above-described strength adjustment action is interrupted. As described above, because the rotary shaft 12 is formed by the crankshafts 12a and 12b that are eccentric in opposite directions, the rotary shaft 1
Depending on the rotation position of 2, the positions of both treatment elements 5, 5 are displaced, but this is detected by separately detecting the rotation position of the rotating shaft 12 by the detecting means, and as shown in FIG. Joint that connects the arm and the arm 4
After the position of 44 is controlled so as to be at the same position for both treatment elements 5, 5, that is, both treatment elements 5, 5 are controlled to be at the same position, the above-mentioned massage treatment is performed. If you operate the "rolling" switch SW ₃₀ , first check if the feed screw 25 has a small margin, that is, if it is set to the weak position, and confirm that both treatment elements 5, 5 It is sequentially checked whether the width is within a predetermined width, and when these conditions are not satisfied, the stock removal adjustment and the width adjustment are performed. Then, using the rotational position detection circuit S ₁ , the pinion 17 is rotated after the rotational position of the main shaft 1 is controlled so that the protrusion amount of the treatment element 5 due to the eccentricity of the inner ring 2 is maximized. The treatment element 5 is vertically moved by. While the treatment element 5 is rolling, a rolling massage is performed so as to touch the back surface of the user. At this time, if the treatment element 5 reaches the upper and lower ends of the vertical movement range, the vertical movement direction is automatically reversed by controlling the rotation direction of the motor M. Also, this switch SW
_While massaged by ₃₀ , switch SW ₄ ,
When SW ₅ is operated, the operation by these switches SW ₄ and SW ₅ is interrupted, and manual inversion is performed. Switch SW
_{When 6} and SW ₇ are operated, the interrupt is disabled and the motor stops. "Rice up" or "Rice down" switch SW ₃₁ , S
If W ₃₂ is pressed, the treatment element 5 starts a massage for curving up or curling by rotating the spindle 1 at that position. When the switch SW ₄ to SW ₇ has been operated during the massage operation of these is an interrupt executed, vertical position adjustment and intensity adjustment is performed. And when the "SWAT" switch SW ₃₃ is pressed,
The treatment element 5 due to the eccentricity of the inner ring 2 by rotating the main shaft 1
Is set to a state in which the distance between the pair of massaging elements 5, 5 due to the inclination of the inner ring 2 is maximized and then the rotation shaft 12 is driven to rotate. A tapping massage is performed. If the switch SW ₃₃ is pressed during the massage during which the eccentric direction and the inclination direction of the inner ring 2 are gradually changed by the rotation of the spindle 1, the control circuit CPU ₂ monitors the output of the rotational position detection circuit S _1. Then, the pair of inner rings 2, 2 which are inclined in opposite directions are in a state of being opened toward the front side of the backrest 84, and are rotationally driven until the eccentric direction of the inner ring 2 faces the front side of the backrest 84. The rotation of the spindle 1 as a means is continued, and thereafter, the rotation of the motor transmitted to the spindle 1 is
The control circuit CPU ₂ switches each clutch so that it is transmitted to the rotary shaft 12. In the tapping massage here, since the eccentric directions of the crankshafts 12a and 12b of the rotary shaft 12 are opposite to each other, the tapping operations of the massaging elements 5 and 5 are alternately performed. Furthermore, when the "swap rolling" switch SW ₃₄ is pressed, first, the operation of setting the feeding allowance of the treatment element 5 set by the feed screw 25 to the minimum and the pair of treatment elements 5 due to the inclination of the inner ring 2, The amount of protrusion of the massaging element 5 due to the eccentricity of the inner ring 2 is set to the minimum distance between the five, and then the tapping operation by rotating the rotary shaft 12 and the vertical movement by rotating the pinion 17 are performed. Are done at the same time. When the treatment element 5 reaches the upper and lower ends, the movement direction is automatically reversed as in the rolling massage. FIG. 8 shows a flow chart of the operation at the time of shifting from the massage to the tapping massage or to the tapping rolling massage. Here, the interval between the massaging elements 5 due to the inclination of the inner ring 2 is large during the tapping massage, and the interval between the massaging elements 5 is small during the tapping rolling massage. It is designed to be able to tap the "vessels" called "shoulders" at both ends of the shoulder. This is because the "pots" on both sides can be stimulated. It should be noted that a single motor performs vertical movement and tapping operation, and the motor rotation direction is opposite when moving up and down and when moving downward. There is no problem because the operation is the same regardless of the direction, that is, the rotation direction of the rotation shaft 12. If you set the mode switch SW ₂ to "Stop," all operations will stop at that point. When set to "storing", the feed screw
After the operation of minimizing the amount of protrusion by 25, the operation of moving the treatment element 5 to the lower end, and the operation of minimizing the protrusion amount due to the eccentricity of the inner ring 2, the entire operation is stopped.
The timer circuit C ₄ in the control circuit CPU ₂ is a mode switch.
When the SW ₂ is set to the “operation”, the count-up is started, and when the predetermined time elapses, the same operation as when the mode switch SW _{2 is set} to the “storage” is performed. FIG. 9 shows the clutches 24 and 3 in this massage machine.
Applied voltage waveform when operating 2,33, clutch 24,32,
33 shows the current waveform flowing in 33. In the initial stage of suction where a large suction force is required, continuous energization is performed for T time, and a small suction force is required to maintain the operating state thereafter. Therefore, energization for a short time t ₁ is performed every required time t ₂ , By setting the energization time to be t ₁ / (t ₁ + t ₂ ), the average value of the applied voltage is lowered, and power saving and temperature rise are prevented. Further, FIGS. 10A and 10B show a drive circuit for the buzzer Bz and the light emitting element L ₃₅ provided in the operating device 60, and a voltage change at point a in the drawing. Light emitting element L here
₃₅ lights up when adjusting the strength by moving the feed nut 26 by operating the switches SW ₆ and SW ₇ , and the buzzer Bz adjusts the strength by operating the switches SW ₆ and SW ₇ , or other massage operations. It sounds when the strength is adjusted in conjunction with, and when the direction of adjustment is the strong direction, it calls the user's attention, but here it is the buzzer Bz and the light emitting element L.
_By connecting ₃₅ and in parallel, it is possible to share the output terminals for both in the control circuit CPU ₁ and the control circuit CP 1.
The number of output terminals of U ₁ can be reduced. The four combinations of the lighting state of the light emitting element L ₃₅ and the ringing state of the buzzer Bz are the continuous ON or OFF state of the transistor Q ₁ in the light emitting element drive circuit A, the ON time t ₃ and the OFF time t ₄ 2 types of continuous on
It is gained by the off state. By increasing the ratio of t ₃ / (t ₃ + t ₄ ), and reducing the continuous period t ₃ + t ₄ at the same time, the light emitting element L ₃₅ can be turned on and off almost repeatedly when the buzzer Bz sounds. It is not felt, and is recognized as a continuous lighting state or a non-lighting state.

【The invention's effect】

As described above, in the present invention, when performing a tapping massage, the inclination direction of the inner ring that is inclined with respect to the main axis is constant, and therefore the interval between the treatment elements and the operation direction are always constant. Since it is the same, the tapping massage by the treatment element can be surely performed on the "vase" which is effective for stiff shoulders.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a cutaway plan view of the same as above, FIG. 3 is an explanatory view showing a locus of a rubbing motion of a treatment element seen from the front, and FIG. FIG. 5 is a side view, FIG. 5 is a perspective view of a chair equipped with the same as above, FIG. 6 is a front view of the operating device of the same, FIG. 7 is a block circuit diagram of the same as above, and FIG. FIG. 9 is a time chart of a voltage / current waveform of clutch control, and FIGS. 10 (a) and 10 (b) are partial circuit diagrams and time charts of the same as above. 1 is a main shaft, 2 is an inner ring, 3 is an outer ring, 4 Is an arm,
5 is a treatment element, and S ₁ is a detection means.

Claims (1)

(57) [Claims] Claim: What is claimed is: 1. An inner ring attached to the main shaft as inclined, an outer ring rotatably mounted on the outer periphery of the inner ring, a treatment element attached to the outer ring via an arm, and an outer ring around the inner ring. A swinging drive means for reciprocally rotating within a predetermined angle range to strike a treatment element provided on the arm, a rotation drive means for rotating the main shaft, and a detection means for detecting the rotational position of the inner ring. In addition to the above, the massage machine is provided with a control means for operating the rotation drive means based on the output of the means to set the rotational position of the inner ring to a predetermined position when the swing drive means is operated. .