JPH0215217B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chair-type pine surge machine, and more particularly to a pine surge machine that performs "kneading" and "pushing" actions among the basic pine surge operations.

Traditionally, chair-type and bed-type pine surge machines have been able to achieve the effect of ``stretching'' using rollers or ``kneading and pushing'' using the rotation of eccentric rollers, but the basics of pine surge, ``pushing'' (shiatsu), cannot be obtained by the same mechanism,
A separate device was attached to the roller.
Therefore, equipment that has these three elements is expensive, so standard pine surge machines only have a single function of stretching or only two functions of stretching and pushing, and there is no one that can provide the three elements. Ta.

The object of the present invention is to provide a pine surge machine that can separately obtain ``kneading'' and ``pushing'' (shiatsu) out of the above-mentioned three elements of pine surge using a rotating roller system, and also has a simple configuration. .

In order to achieve the above purpose, the present invention provides a one-way clutch in the massage ring for treatment, so that the treatment effect by rotating the massage wheel can be achieved by controlling the rotational direction of the motor, and the massage action and pushing action can be made to function independently. This made it possible.

In particular, the present invention provides an eccentric wheel 9 mounted on the rotating shaft 8, a clutch ball 10 that rolls on the eccentric wheel 9, and a rising portion provided along the outer periphery of the ball 10. 11, parallel part 12,
A one-way clutch body 14 consisting of an inclined portion 13 is provided, and a massage ring 17 is mounted on the outer periphery of the one-way clutch body 14 via a bearing ball 15. In this mounted state, one of the clutch balls 10 is The area is arranged away from the tilt axis of the massage wheel 17.

Since the pair of kneading wheels 17 are inclined in opposite directions with respect to the rotation axis, the reaction force of the pressing force on the treatment area, that is, the clutch ball 10 on the eccentric wheel 9 is pressed against the parallel part 12 and the inclined part 13. If the force is too large (for example, if the user's weight is large)
If the clutch ball 10 digs in too much and the clutch is to be released, it may not be possible to release the clutch smoothly.

However, in the present invention, one of the clutch balls 10 is arranged in a region away from the inclined axis of the massaging wheel 17, so even if the same overload reaction force as above is applied, the biting force of this one ball is Because it is smaller than the others, when the rotating shaft is reversed to release the clutch, this ball 10 smoothly releases first, thereby causing the eccentric wheel 9 and the clutch body 1
4, and the other clutch balls 10 are also smoothly released. If the clutch rolling element were to be of a roll type, the clutch roll would exist within the inclined axis P of the massaging wheel 17, and if the pressing force on the treatment area is too heavy, the roll on the eccentric wheel 9 would be Both end up biting into the clutch body 14,
Even if the rotating shaft 8 is reversed, it will not be able to be released smoothly, and there is a risk that the user will mistake it for a malfunction.

The pine surge machine 1 is composed of a seat part 2, a backrest part 3, armrest parts 4 and 4', and leg parts 5. The backrest portion 3 is provided with a treatment surface portion 6 in the vertical direction, and this portion is covered with a cover 7 made of extensible fabric or the like, and on the back side, a treatment surface portion 6 is provided with a rotation shaft 8 having an eccentricity e. an eccentric wheel 9 integrally mounted on the eccentric wheel 9; a ball 10 rolling on the eccentric wheel 9;
Rising part 11 and parallel part 1 provided along the outer periphery
2. One-way clutch body 1 consisting of inclined portion 13
4. A kneading section 18 is provided, which is made up of a bearing ball 15 and an outer ring 16 that roll on the outer periphery of the clutch body 14, and which is made up of kneading wheels 17 that are inclined in opposite directions.

With the massaging wheel 17 installed in this manner, one of the clutch balls 10 (the ball at the lower end position in FIG. 5) is placed in an area deviated from the inclined axis P of the massaging wheel 17, as shown in FIG. There is.

On the other hand, on the back side of the backrest part 3, guide rails 20, 20' are provided which are integrally attached to the vibe frame 19 forming the backrest frame. is defined as a rail surface 21, and the kneading wheel 1 is attached to the rail surface 21.
Guide rollers 22 attached to both ends of the rotating shaft 8 of 7
is stored so that it can roll freely. Further, a connecting arm 24 is provided on the rotating shaft 8 via a bearing 23.
The other arm is provided with a motor base 25 via a pulley shaft 30, a motor 26 mounted on the base 25, a pulley 27 mounted on a drive shaft 26' of the motor 26, a belt 28, and a driven pulley 29. be. The pulley shaft 30 of the driven pulley 29 has both ends connected to the side wall 3 of the motor base 25.
It is suspended by a pulley bearing 32 provided in 1,
The pulley shaft 30 is provided with a gear 34 loosely fitted in a gear bearing 33 and a worm 36 loosely fitted in a worm bearing 35, and meshing surfaces 37, 38 are provided on the opposing inner surfaces of the two. are formed, and transmission surfaces 3 each engage with the meshing surfaces.
An idler 40 having 9 and 39' is loosely inserted into the pulley shaft 30 by means of a positioning key 41 so as to be able to slide freely and transmit only rotational force. The slider 40 is controlled to slide in the axial direction by an operating rod 43 that engages with a groove 42 formed on its outer circumferential surface, and the operating rod 43 is connected to a solenoid 44 via a fulcrum 43'. It is coupled to a plunger 46 whose drive is controlled by a spring 45. On the one hand, the gear 34 loosely fitted on the pulley shaft 30 is connected via a reduction gear 47 to a rotating shaft gear 49 integrally attached to the rotating shaft 8 of the kneading wheel 17, and on the other hand, the worm 3
6 meshes with a worm wheel 52 that is integrally coupled with a rotary screw 51 that engages with a screw shaft 50 provided over the entire upper and lower regions of the backrest portion 3. Further, the connecting arm 24 is connected to the pulley shaft 3.
They are rotatably and loosely fitted together by a connecting bearing 53 provided on the 0, and the entire structure constitutes a driving section. Reference numeral 4 denotes the operation section of this pine surge machine, which is connected to the main body 1 by a cord 61, and the operation switches include a back straightening and massaging selection switch 55;
A selection switch 56 for kneading and pushing, a kneading width setting switch 57, a kneading position control switch 58, and a power switch 59 are installed. This massage width setting switch 57 is connected to the flush circuit 62.
When the switch 57 becomes conductive, the transistor Q ₁ is activated, and the relay 60 is activated to start the motor 26. However, after the time set in advance by R ₁ and C ₁ has elapsed, the base potential of the transistor Q ₁ becomes high. Then, the transistor _Q1 is turned off, the relay 60 is turned off, and the rotation of the motor 26 is stopped.

Next, the operation of this pine surge machine will be explained.
The practitioner sits on the seat 2, rests his or her back against the backrest 3, and then operates the switches on the contact section 54. First, the power switch 59 is turned on, and then the selection switch 55 for, for example, back stretching or kneading is set to, for example, back stretching. Then, the motor 26 rotates and the solenoid 44 is energized, and the working rod 43 is pulled toward the right in FIG. 3 against the spring 45. Pushing it to the left, the transmission surface 39 engages with the engagement surface 38 of the worm 36, and the motor 2
6. Pulley shaft 3 transmitted via belt 28
A rotational force of 0 is transmitted to the worm 36. As the worm wheel 52 rotates and the rotary screw 51 integrated with the worm wheel 52 rotates, the kneading section 18 including the drive mechanism is moved along the backrest section 3 by the thrust generated by the screw shaft 50 and the rotary screw 51. The kneading ring 17 moves along the spine of the practitioner and produces a back stretching effect while applying compressive force. The vertical movement is performed by detecting the position using limit switches (not shown) attached to the upper and lower ends of the guide rail 20, and by switching the direction of rotation of the motor 26.

On the other hand, when the practitioner desires partial pine surgery, the selection switch 55 is turned on. Then, although the motor 26 continues to rotate, the solenoid 44 is released and the operating rod 43 is pulled toward the left in FIG. 3 by the spring 45. Therefore, the action rod 43 presses the swinger 40 to the right in the figure via the fulcrum 43', disengaging the transmission surface 39 from the worm 36, and then disengaging the transmission surface 39'.
engages with the meshing surface 37 of the gear 34 and transmits the rotational force of the pulley shaft 30 to the gear 34. This rotational force is then transmitted to the rotating shaft 8 via the reduction gear 47. At this time, if the kneading/pushing selection switch 56 of the operating section is on the "kneading" side, the rotating shaft 8 will rotate clockwise in FIG. 5. Therefore, at this time, the ball 10 first rolls clockwise on the eccentric wheel 9, but soon the ball 10 is held between the inclined portion 13 of the clutch body 14 and the eccentric wheel 9, and as a result, the clutch body 14 is rotated clockwise. It rotates integrally with the rotating shaft 8. Therefore, the kneading wheel 17 as a whole rotates at an incline, and a kneading action is performed by increasing or decreasing the width of the kneading wheel relative to the treatment area due to the inclination, and by increasing or decreasing the treatment depth due to the eccentricity 2×e of the eccentric wheel 9. .

In this clutch connected state, the massaging ring 17 is inclined with respect to the rotating shaft 8 and the eccentric wheel 9, so the reaction force on the clutch body due to the pushing force on the treatment area is caused by the ball on the inclined axis P of the massaging ring 17. 10, and when the weight of the practitioner is large, the ball 10 on the inclined axis P
This results in the clutch being held between the clutch body 14 and the clutch body 14 with more bite than necessary. Although this is necessary to ensure a reliable connection of the clutch, it creates a disadvantage when releasing the clutch, as will be described below.

That is, when the selection switch 56 is set to "push", the motor 26 rotates in the opposite direction to that described above, and the eccentric wheel 9 rotates counterclockwise in FIG. 5.

One of the clutch balls 10 is disposed in a region deviated from the tilt axis P of the massaging ring 17, so that even if excessive gravity is applied by the practitioner, the tilt axis P
The outer ball 10 will not be in an excessive biting state, and therefore, by reversing the eccentric wheel 9, this one
Two balls 10 are released smoothly. As a result of this release, the radial gap on the circumference between the eccentric ring 9 and the clutch body 14 shifts toward the excessively biting ball, and as a result, the other balls 10 are also smoothly released, and the rising portion of the clutch body 14 1
Move to the 1st side and idle. Therefore, the clutch body 14
does not rotate, and as a result, the width of the massage wheel 17 remains the same, and only the displacement amount 2×e by the eccentric wheel 9 acts as an increase or decrease in the treatment depth, resulting in a so-called pushing effect.

However, if the massager wishes to adjust the treatment width (in other words, increase or decrease by rotating the massage wheel) during the pushing action, the massage width setting switch 5 can be used.
Insert 7. Then, the relay 60 is activated to reverse the rotational direction of the motor 26, and the kneading wheel 17 rotates clockwise in the figure by the same system as during the kneading operation, and the kneading wheel width begins to increase or decrease. In this case, since the operating time of the relay 60 is extremely short, the kneading wheel rotates for (1/2 minute) and then stops. Thereafter, the motor 26 rotates normally again, so that the width of the kneading wheel 17 remains at that position, that is, the width increases or decreases, and the pushing operation begins again.

It should be noted that during the back stretching operation, the screw shaft 50 that causes vertical movement must be straight in manufacturing, but on the other hand, the massage part 1
It is best for 8 to move in line with the therapist's skeletal structure. Therefore, the mechanical part placed on the motor base 25 moves up and down linearly along the screw shaft 50, but the kneading part 18 and the mechanical part are connected to the pulley shaft 30.
A connecting bearing 53 is connected between the rotating shaft 8 of the rubbing wheel 17.
The guide rails 20, 20' are connected by a connecting arm 24 which is rotatable by a bearing 23. Therefore, if the guide rails 20, 20' are formed in a curved line along the frame, it will move as the mechanical part moves up and down in a straight line. Even if the massaging section 18 moves in a curve, it can operate without changing the distance between the pulley shaft 30 and the rotary shaft 8 due to the rotation of the connecting arm 24.

As mentioned above, the present invention includes an eccentric wheel 9, a ball 1
0. Since a one-way clutch is formed by the clutch body 14, when the rotating direction of the rotating shaft 8 by the motor 26 is clockwise in FIG. In addition, in counterclockwise rotation, the pushing action due to the displacement 2×e of the eccentric wheel 9 in the treatment direction, which is caused by the idle rotation of the clutch body 14 with respect to the eccentric wheel 9, is obtained independently. According to the present invention, it is possible to provide a pine surge machine that can provide each of the three elements of pine surge, stretching, kneading, and pushing, as separate actions, and can be used selectively depending on the treatment purpose, and the effects are extremely large. Since one of the clutch balls 10 is arranged in a region deviated from the inclined axis P of the massage wheel 17 when the massage wheel is attached, the clutch can be smoothly released without causing a failure in releasing the clutch due to excessive biting. This makes it possible to make the device easy to use without making the practitioner feel anxious about breakdowns or the like.

[Brief explanation of drawings]

Fig. 1 is an external view of the chair-type pine surge machine according to the present invention, Fig. 2 is a cross-sectional view, Fig. 3 is a horizontal sectional view of the mechanism, Fig. 4 is a perspective view of the drive unit, and Fig. 5 is a kneading wheel. Vertical sectional view, Figure 6 is a cross sectional view of the kneading wheel, Figure 7
The figure is an external view of the operating section, and FIG. 8 is a circuit diagram of the flash switch section. 1... Pine surge machine, 3... Backrest part, 8...
... Rotating shaft, 9 ... Eccentric wheel, 10 ... Ball, 11
... Rise part, 13 ... Inclined part, 14 ... Clutch body, 16 ... Outer ring, 17 ... Massage ring, 18 ...
... Massage section, 26 ... Motor, 54 ... Operation section.

Claims (1)

[Claims] 1 A kneading part with a kneading wheel tilted in the opposite direction attached to a rotating shaft is disposed on the backrest part, and has a mechanism for moving the kneading part along the backrest part, and has a mechanism for moving the kneading part up and down or rotating the kneading wheel. In a chair-type pine surgery machine that performs treatment by leaning, an eccentric wheel 9 is attached to the rotating shaft 8.
At the same time, the eccentric wheel 9 is mounted on the eccentric wheel 9.
Clutch ball 10 rolling on top, said ball 1
A one-way clutch body 1 consisting of a rising portion 11, a parallel portion 12, and an inclined portion 13 provided along the outer circumference.
4, a massaging ring 17 is mounted on the outer periphery of the one-way clutch body 14 via a bearing ball 15,
In this installed state, one of the clutch balls 10 is disposed in a region deviated from the inclined axis of the kneading wheel 17.