JPH0214057B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a pine surgery machine that performs pine surgery by the movement of one or more pairs of treatment elements.

[Background technology]

As shown in FIG. 20, the treatment elements 4 include ring-shaped parts attached at intervals to the main shaft 1 which is rotatably driven. A pair of ring-shaped treatment elements 4, 4 attached in an eccentric and inclined state with respect to the main shaft 1 performs a massage operation as the main shaft 1 rotates. However, with a treatment element having such a shape, the amount of protrusion of the treatment element 4 from the main shaft 1 is determined only by the outer diameter and eccentricity of the treatment element 4. Since the curvature of the outer surface of the child 4 becomes smaller and the contact area with the body becomes larger, there is a problem in that it is not possible to obtain the so-called point pine surge that presses the ``pressure points'', and even if the amount of eccentricity is increased, this The same is true since it is limited by the outer diameter. Therefore, by using the treatment element 4 whose outer diameter is set to obtain point pine surge, the results shown in FIGS. 21 and 22 are
As shown in the figure, when attempting to perform pine surges on the sides of the neck or shoulders, the main shaft 1 hits the rear part of the neck, making it impossible to obtain sufficient pine surges.

On the other hand, Japanese Utility Model Publication No. 55-30488 discloses a device in which a treatment element 4 is attached to the tip of an arm that is connected to an eccentric inclined plate attached to a main shaft and moves as the main shaft rotates. . Since there is no particular restriction on the length of the arm, the configuration is such that it can satisfy both the point pine surge and the pine surge on the sides of the neck and shoulders. However, even in this pine surge machine, it is not possible to adjust the amount of protrusion of the treatment element from the main axis.
It has the following problems. In other words, if the amount of protrusion from the main axis of the treatment element is the same when performing pine surgery on the side of the neck or shoulders and when performing pine surgery on the back or lower back, it is difficult to perform appropriate pine surgery on each part. I can't do it,
If the amount of protrusion of the treatment element is determined according to the shoulders, the pine surge on the back of the neck, back, lower back, etc. will become too strong, which is dangerous. pine surge becomes too weak.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to perform appropriate pine surgery on each part of the human body using a treatment element capable of performing point pine surgery. To provide a pine surge machine which can do the same and eliminates the danger associated with making the amount of protrusion of a treatment element variable.

[Disclosure of the invention]

Therefore, the present invention provides a medical treatment system that is attached via an arm to an outer ring that is freely rotatable around the outer periphery of an eccentric inner ring that is attached to a rotationally driven main shaft, and whose rotation around the main shaft is restricted. The pine surge machine is equipped with a pair of treatment elements, a width changing means for changing the problem of both treatment elements, a protrusion amount adjustment means for changing the protrusion amount of both treatment elements by changing the position around the main axis of the outer ring, and a width. The width changing means and interlocking means suppress each other between the range of operation for changing the spacing of the treatment elements by the changing means and the range of operation for adjusting the protrusion amount of the treatment elements by the protrusion amount adjustment means. By means of the projection amount adjustment means, the treatment element can be set in the optimum state for each part to be treated, and the range of motion for adjusting the projection amount and changing the width of the treatment element is mutually suppressed. The interlocking means prevents the treatment element with a large protrusion from being located in a dangerous area such as the back of the neck.

The present invention will be described in detail below based on illustrated embodiments. This pine surge machine is built into the backrest or bed of a chair, but in the illustrated example, as shown in Figures 1 and 2, it is built into the backrest of a chair that can be reclined freely. ing. This chair is provided with a seat part 82 and an armrest 83 on a lower frame 81 made of pipes, a lower part of a frame 85 of a backrest 84 is pivotally connected to the lower frame 81, and a gas spring is installed between the lower end of the frame 85 and the lower frame 81. 86 is attached so that the backrest 84 can be reclined by expanding and contracting the gas spring 86 by operating a lever 87 provided on the side of the armrest 83.The frames 85 on both sides of the backrest 84 each have an opening surface with a U-shaped cross section. A pair of rails 8, 8 facing each other are fixed. A head rest 88 is provided at the upper end of the backrest 84, and support bands 90 are vertically arranged on both sides of the back of a cover sheet provided on the front of the backrest 84 up to the headrest 88.

A rack 9 is fixed to the opening edges of the pair of rails 8, 8 along the longitudinal direction, and a pinion 23 that engages with the rack 9 is provided between both rails 8, 8.
The treatment element 4 and the rollers 2 rolling within each rail 8
A mechanism section equipped with a second etc. is installed. This mechanism unit has a motor that can freely rotate in forward and reverse directions and is self-propelled along the rail 8, and as shown in FIGS. 3 and 4, the main shaft 1 has a pair of treatment elements 4, 4 attached A gearbox 10 is disposed at one end of a supporting frame 40 that is approximately parallel to the main shaft 1, and a motor M is disposed at the other end.A cylinder body 21 is attached to both ends of the main shaft 1 so as to freely rotate. A roller 22 that rolls within the rail 8 is further rotatably attached to the body 21, and rollers 22 are rotatably attached to both ends of the support frame 40 located above the main shaft 1, for a total of four rollers 22.
A mechanism section is installed between the rails 8, 8. The cylindrical bodies 21, 21 at both ends of the main shaft 1 are attached by spline connection to both ends of the drive shaft 2, which is disposed coaxially inside the main shaft 1, which is hollow. A pinion 23 that meshes with the seat is provided, and when the drive shaft 2 is rotated, the mechanism moves up and down along the rail 8 on the back side of the backrest 84.

As shown in FIGS. 4 and 6, the pair of treatment elements 4, 4 each have an eccentric inner ring 41 and an eccentric inner ring 4.
An outer ring 43 is freely rotatably attached to the outer periphery of the outer ring 1 via a ball 42, and an arm 44 is fixed to the outer ring 43.
The eccentric inner ring 41 has an axial groove that slidably engages with a protrusion 45 provided in the axial direction on the outer peripheral surface of the main shaft 1. 41b on the inner circumferential surface to rotate together with the main shaft 1. As is clear from FIG. They are attached so as to be inclined in opposite directions relative to the main shaft 1. The treatment element 4 is attached to a bent end portion of an arm 44 that protrudes tangentially from the outer periphery of the outer ring 43 toward the cover sheet side.
The treatment element 4 is formed as a roller that is freely rotatably attached to the arm 44 via a bearing 45a. In the figure, 44a is a mounting nut.

Also, the cylinder shaft portion 41a of the eccentric inner ring 41 here
A connecting arm 33, a rotating plate 47, a support roller 46, etc. are arranged on the outer circumferential surface of. The connecting arm 33 has a cylindrical boss 33a at one end rotatably attached to the outer peripheral surface of the cylindrical shaft portion 41a of the eccentric inner ring 41, and a pair of projections 33b, 3 on the outer surface thereof.
It is equipped with 3c. The rotating plate 47 is attached to the outer circumference of the boss 33a of the connecting arm 33, and has three pins 47a, 47b, 47d on the outer circumference.
and a hook hole 47c, so that the pin 47b can freely rotate with respect to the connecting arm 33 only within the range in which it moves between the pair of protrusions 33b and 33c of the connecting arm 33. A support roller 46 made of an elastic material such as rubber is attached to the outer periphery of the cylindrical portion of the rotating plate 47 via a bearing 45b to prevent the body from sinking. In the figure, reference numeral 48 designates a thrust bearing in which the rotating plate 47 serves as one race plate, and reference numeral 41c designates a retaining ring that is attached to the tip of the cylindrical shaft portion 41a of the eccentric inner ring 41 to prevent the above-mentioned members from coming off.

The outer ring 43 and the rotating plate 47 are connected to the pin 4.
3a and the hook hole 47c are connected by a tension coil spring CS ₁ , and the pin 43a and the pin 47a are connected by a wire 49, so that rotation about the axis is interlocked between the two. .
In addition, a torsion coil spring _CS2 whose both ends are locked to the pin 47b of the rotating plate 47 and the slit 33d of the connecting arm 33 allows the rotating plate 47 to rotate in one direction with respect to the connecting arm 33. Forced.
A pin 47d protruding from the rotating plate 47 is connected to the other end of a wire 100, one end of which is connected to a wire drive section described below.

As shown in FIGS. 5 and 7, the wire drive section includes a plate 105 whose both ends are bent in the same direction.
, a feed screw 106 installed between both ends of the plate 105, a slider 108 that is screwed into the feed screw 106 and prevented from rotating by guide pieces 107 protruding from both side edges of the plate 105, and a feed screw 106. The wire 100 is composed of a geared motor M ₂ that rotates a screw 106 and can be rotated in forward and reverse directions. When the slider 108 is moved by rotating the feed screw 106 by the geared motor _M2 , the wire 100 is pulled or loosened.

Next, a mechanism for changing the width (pitch), which is the interval between the attachment positions of the main shaft 1 of both treatment elements 4, 4, will be explained. Lower part of gearbox 10 and motor M
A feed shaft 3 parallel to the main shaft 1 is provided over a holding plate 80 fixed to the main shaft 1. This rotationally driven feed shaft 3 has a right-handed thread 3 on one side from the center in the axial direction.
1. The other side is a left-handed screw 32, and both screws 31, 32
One end of each of the connecting arms 33, 33 is screwed into each of the connecting arms 33, 33, respectively. The other end of each connecting arm 33 is connected to each eccentric inner ring 41 as described above, and since the eccentric inner ring 41 is slidable in the axial direction of the main shaft 1, the feed shaft 3 can be rotated in one direction. If it is rotated in the opposite direction, the distance between the connecting arms 33, 33 and the width between the treatment elements 4, 4 will be widened, and if it is rotated in the opposite direction, the width will be narrowed.

Now, the main shaft 1, the drive shaft 2, and the feed shaft 3.
All books are rotationally driven by a motor M, and the rotational direction of each shaft is controlled by changing the rotational direction of the motor M itself. However,
These three axes are not individually connected to the motor M, but the main shaft 1 and the drive shaft 2 are driven alternatively, but when the main shaft 1 is connected to the motor M, the feed shaft 3 is It is configured such that only the motor M can be connected to the motor M. To explain this power transmission switching mechanism and the reduction mechanism in the gearbox 10, the power transmission switching mechanism is composed of a planetary device 5, two electromagnetic brakes SL ₁ and SL ₂ , and an electromagnetic clutch SL ₃ , and the output from the planetary device 5 is is selectively transmitted to the pair of worm shafts 11 and 12 by the operation of either of the pair of electromagnetic brakes SL ₁ and SL ₂ . A worm wheel 13 splined to the outer periphery of the cylindrical body 21 is engaged with the worm shaft 11, and a worm wheel 14 supported by a shaft 15 is engaged with the other worm shaft 12. Worm wheel 13
The rotation of the worm wheel 14 is transmitted to the drive shaft 2 and causes the mechanism to move up and down, and the rotation of the worm wheel 14 is also transmitted to the drive shaft 2.
The signal is transmitted to the main shaft 1 by an elliptical gear 16 supported by the main shaft 1 and a driven elliptical gear 17 that is fixed to the main shaft 1 and meshes with the elliptical gear 16.

The planetary device 5 is composed of ball bearings, and includes an inner race 51 as a sun gear, a ball 52 as a planetary gear, and an outer race 5 as an internal gear.
3 and a retainer 54 as a planetary carrier, and an inner race 51 is fixed to the outer periphery of a collar 56 which is rotatably attached to the upper end of the worm shaft 11 via a bearing 55. This collar 56 is integrally provided with a pulley 57 that is connected to a pulley 79 provided on the output shaft of the motor M with a belt 63. Further, a retainer 54 is fixed to the worm shaft 11, and the outer race 5
3 is fixed to a cover 59 supported by a bearing 61. A pulley 58 is integrally formed at the lower part of a cover 59 that covers a thrust spring 60 that presses the outer race 53 in the thrust direction to apply a preload force between the outer race 53, the ball 52, and the inner race 51 and the retainer 54. A pulley 62 provided on the top of the worm shaft 12
is connected to by a belt 64. Now, worm shaft 11
With the brake applied to the motor M, the color 5 is
6 and the inner race 51, the retainer 54
Since the ball 52 is prevented from revolving, it only rotates on its own axis, causing the outer race 53 to rotate. And pulley 58, belt 64, pulley 62
The worm shaft 12, that is, the main shaft 1 is rotated through the steps. Conversely, if braking is applied to the worm shaft 12, the outer race 53 is locked through the belt 64, and the balls 52 rotate and revolve, rotating the worm shaft 11 and the drive shaft 2 through the retainer 54. be.

Braking for each of the worm shafts 11 and 12 is performed by electromagnetic brakes SL ₁ and SL ₂ arranged at each end of these. Both electromagnetic brakes SL ₁ and SL ₂ have the same configuration, and both have a coil 65 and a yoke 6.
6, a core 67, a brake shoe 68, and a return spring 69.The brake shoe 68 is attracted against the return spring 69 by the excitation force obtained by energizing the coil 65, and each worm shaft 11 and 1
A brake shoe 68, which is spline-coupled to 2 and slidable in the axial direction, is brought into contact with the core 67 to brake the worm shafts 11 and 12.

The feed shaft 3 includes a worm shaft 12 and an electromagnetic clutch.
It is driven through SL ₃ , a worm shaft 34 , and a worm wheel 35 provided at one end of the feed shaft 3 and meshing with the worm shaft 34 . electromagnetic clutch
SL ₃ is composed of a coil 70, a yoke 71, a core 72, a clutch 73, a return spring 74, etc., and the clutch 73 is connected to the worm shaft 1.
The core 72 is attached to the lower end of the worm shaft 34 by a spline connection so as to be able to transmit rotational force and to freely slide in thrust. When the coil 70 is energized, the clutch shoe 73 descends against the return spring 74 and contacts the core 72, transmitting the rotation of the worm shaft 12 to the worm shaft 34 through the clutch shoe 73 and the core 72. It rotates.
94 is the worm shaft 34 and the worm wheel 35
It is a gearbox containing the gearbox 10.
Electromagnetic clutch SL ₃ and yoke support stand 93 on the bottom surface of
It is attached via.

In this pine surge machine configured as described above, when the main shaft 1 is now rotated, the outer ring 43 whose rotation is restricted by the connection with the rotating plate 47, etc.
The treatment element 4 attached to the arm 44 protruding from the outer ring 43 performs a three-dimensional movement similar to wobbling due to the eccentricity and inclination of the eccentric inner ring 41. In other words, the amount of protrusion of both treatment elements 4, 4 toward the cover sheet changes periodically, and
The distance between the two treatment elements 4 also changes periodically, and the back of the human body leaning against the backrest 84 is
By this movement of the treatment element 4, massage is performed. There are two types of pine surges depending on the direction of rotation of the main shaft 1. There are two cases: the treatment element 4 presses the back of the human body from above to below through the cover sheet, and the other case it moves from below to upward; the former will be considered here for convenience. The latter are called sideburns.

When the drive shaft 2 is rotated, the mechanism section moves up and down along the rail 8 within the backrest as described above, so that the treatment element 4 is attached to the human body leaning against the backrest 84 through the cover sheet. Touch and move the back of the body in the direction along the spine to perform a sari pine surge to stretch the spine. When the feed shaft 3 is rotated, the pitch between the pair of treatment elements 4, 4 is changed as described above.

When the wire drive unit is activated to pull the wire 100, the protrusion 33 of the connecting arm 33
The rotating plate 47 rotates within the range in which the pin 47b is restricted by the pins 47b and 33c, and at this time, the outer ring 43 connected to the rotating plate 47 by the tension coil spring _CS1 also rotates. For this purpose, the treatment element 4 provided at the tip of the arm 44 moves from the position shown by the chain line to the position shown by the solid line in FIG. 5 according to the amount of tension of the wire 100, and protrudes toward the cover sheet side Increase the amount. The shoulder of the human body leaning against the backrest 84 is moved to a position where it can be pressed from above. Conversely, if you loosen wire 100,
The rotating plate 47 is returned to its original position by the return spring _CS2 .
Since the outer ring 41 connected to the rotating plate 47 by a wire 49 also returns to its original position, the amount of protrusion of the treatment element 4 toward the cover sheet side is reduced. The amount of protrusion is suitable for pushing the back and waist of the human body from behind.

Note that the change in the amount of protrusion of the treatment element 4 due to the amount of eccentricity of the eccentric inner ring 41 is made in addition to the adjustment of the amount of protrusion of the treatment element 4 toward the cover sheet side by this wire drive section. Moreover, the rotation of the rotation plate 47 in the direction of increasing the amount of protrusion of the treatment element 4 is as follows.
Since it is transmitted to the outer ring 43 via the tension coil spring CS ₁ , not only when the amount of protrusion is increased as shown by the solid line in FIG. , regardless of the position of the rotating plate 47, the tension coil spring CS ₁
By applying a force that resists , the amount of protrusion of the treatment element 4 can be reduced. In other words, the strength of the pine surge caused by the treatment element 4 never exceeds the value set by the spring force of the tension coil spring _CS1 .

Next, the vertical position of the treatment element 4 along the rail 8,
Each means for detecting the pitch between the treatment elements 4 and the amount of protrusion of the treatment elements 4 toward the cover sheet side will be explained. First, there is a means for detecting the vertical position of the treatment element 4 along the rail 8. As shown in FIG. 9 and FIG. Discs 29 and 30 are driven to rotate at a slow speed as the drive shaft 2 rotates using a gear 28 connected via a clutch 26 as a reduction gear train, and arcuate holes 29a and 3 formed in both discs 29 and 30.
It is composed of switches PS ₁ and PS ₂ that optically detect 0a, and in this embodiment, the vertical position to be detected can be set to the position of the neck or shoulder by a combination of on/off of both switches PS ₁ and PS ₂ . The corresponding upper edge y ₁ ,
There are three points: a point y ₂ corresponding to the position of the back, and a lower end y ₃ corresponding to the position of the waist.

The width detection means between the treatment elements 4 is as shown in FIG.
As shown in FIG.
It is composed of switches PS ₃ and PS ₄ that optically detect a pair of slits _38a and _38b provided in By the combination of
Minimum width x ₁ corresponding to the position of the neck muscles and erector spinae muscles,
There are three points: the middle width x ₂ , which corresponds to the inside position of the shoulder blade, and the maximum width x ₃ , which corresponds to the widest part of the shoulder.

The amount of protrusion of the treatment element 4 toward the cover sheet side is detected. Since there are two factors that cause changes in the amount of protrusion, a detection means is provided for each. First, to deal with the change in the amount of protrusion due to the presence of the eccentric inner ring 41, a permanent magnet 1 attached to the side surface of the disc 18 fixed to the main shaft 1 on the gearbox 10 side
9, and a pair of magnetically sensitive elements that are attached to the side of the gearbox 10 across the main shaft 1 and turn on in response to the permanent magnet 19, in this case reed switches LS ₁ and LS ₂ , and are wire-driven. To deal with changes in the amount of protrusion depending on the part, a pair of microswitches MS ₁ and MS ₂ are used to detect the position of the slider 108 in the wire drive part.

Instructions as to what kind of operation the treatment element 4 should perform are performed using the operating device 6 which is detachably attached to the armrest 83. This operating device 6, which is connected via a cord 7 to the main body control unit and power supply circuit D installed in the chair, is connected to the "storage" mode as shown in FIG.
3-position mode switch for "operation" and "stop"
It consists of SW ₂ and switches SW ₃₀ to _{SW 34} , which are selective in operation and have various push-on types for ``neck,''``shoulders,''``back,'' and ``waist,'' which indicate the treatment positions for ``back stretch'' and massage and massage. Switch SW ₃ ,
Switch to change the kneading position from top to bottom
SW ₄ , SW ₅ , switches SW ₆ , SW ₇ for changing the width (pitch) of both treatment elements 4 , 4 , and protrusion of the treatment element 4 toward the cover sheet side due to rotation of the rotating plate 47 The light emitting element drive circuit A shown in FIG. 14 includes switches SW ₈ and SW ₉ for adjusting the amount (arm protrusion amount), and light emitting elements L ₁ , L ₂ , L ₃₀ to _{L 34} for displaying operation, Also, a signal forming circuit B ₁ that creates a pulse code signal according to the operation of each of the switches and sends it to the main body control section, and a signal discrimination circuit B ₂ that discriminates the sent pulse code signal.
It is equipped with a control circuit CPU ₁ consisting of.

The main body control section includes a signal discrimination circuit C 2 that discriminates signals sent from the control circuit CPU ₁ of the operating device 6, a signal forming circuit C ₃ that sends signals to the operating device ₆ , a timer circuit C ₄ , and an operation instruction circuit C. Control circuit consisting of ₁ class
CPU ₂ , a motor drive circuit I that drives the motor M according to the output of the operation instruction circuit _C1 , an arm protrusion drive circuit J that drives the motor _M2 of the wire drive section,
It is equipped with a solenoid drive circuit H that drives electromagnetic brakes SL ₁ , SL ₂ and an electromagnetic clutch SL ₃ , and a vertical position detection circuit E consisting of the switches PS ₁ and PS ₂ , and a width position detection circuit E consisting of the switches PS ₃ and PS ₄ . Detection circuit F, protrusion detection circuit G consisting of reed switches LS ₁ and LS ₂ , micro switches MS ₁ and MS ₂
The arm protrusion amount detection circuit G' consists of the following: A specific circuit is shown in FIG.

Now, the operations performed in response to inputs to the operating device 6 will be explained. When power switch SW ₁ is turned on,
First, an operation is performed in which the amount of protrusion of the treatment element 4 due to the rotation of the rotation plate 47 is minimized. This point will be explained in more detail later. Next, when the mode switch SW ₂ is changed from "storage" or "stop" to "operation", the treatment element 4 starts kneading the sideburns at that position. To change this kneading position, all you have to do is operate the switches SW ₄ to SW ₇ . While the input from each switch SW ₄ to _{SW 7} continues, the treatment element 4 moves in the designated direction. However, once the limit of movement in each direction is reached, the treatment child 4
stops moving at that point, and resumes the sideburn movement when the hands are removed from switches SW ₄ to _{SW 7} . Further, the movement range of the treatment element 4 in the vertical direction and in the width direction is narrower than the structural movable range as follows. That is, as shown in FIG. 17, when the width position of the treatment element 4 is between x ₁ and x ₂ , vertical movement is possible in the entire vertical range from y ₁ to y ₃ ; When it is between x ₂ and x ₃ , it moves up and down only between y ₁ and y ₂ , and when there is a treatment element 4 between y ₁ and y ₂ , it moves from x ₁ to
Although the width of the treatment element 4 is variable in the range up to x ₃ , when it is between y ₂ and y ₃ , it changes from x ₁ to
The width can only be adjusted between x ₂ .

Next, a case where the switch SW ₃ is operated will be explained. Now, when you operate the "back stretch" switch SW ₃₀ , it will first check if the width of the treatment element 4 is between x ₁ and x ₂ , and if it is between x ₂ and x ₃ , Width adjustment is made so that it is located at x ₂ . Next, after the rotation of the main shaft 1 is controlled so that the amount of protrusion toward the cover sheet side by the eccentric inner ring 41 is maximized, vertical movement by rotating the drive shaft 2 is started, and "back straightening" is performed. Sasurimatsusage is performed. At this time, when the treatment element 4 reaches the upper and lower ends y ₁ and y ₃ , the direction of vertical movement is automatically reversed by controlling the rotation direction of the motor M. Also, while the switch SW ₃₀ is doing the sari pine surge to lengthen the back,
When switches SW ₄ to SW ₇ are operated, the operations by these switches SW ₄ to _{SW 7} are executed by interrupt.
Manual reversal or width adjustment is performed.

When the switch SW ₃₁ for specifying "neck" is pressed, the treatment element 4 moves to the position indicated by x ₁ , y ₁ and then starts the kneading operation. When the switch SW ₃₂ for specifying "shoulder" is pressed, the treatment element 4 moves to the position indicated by x ₂ , y ₁ , and the amount of protrusion is increased by rotating the rotating plate 47 as described later. ,
Start kneading motion. When the switch SW ₃₃ for specifying ``back'' is pressed, the treatment element 4 moves to the position indicated by x ₂ , y ₂ and then starts to raise the sideburns. When the switch SW ₃₄ for specifying "waist" is pressed, the treatment element 4 moves to the position indicated by x ₂ , y ₃ and then starts the kneading motion. In either case, the position can be finely adjusted by operating switches SW ₄ to _{SW 7} , and the amount of protrusion of the treatment element 4 can be adjusted by operating switches SW ₈ and SW ₉ , that is, the strength of the pine surge can be adjusted. is becoming possible.

If you set mode switch SW ₂ to "stop", all operations will be stopped at that point. When set to "storage", following the upward movement of the treatment element 4 to the y ₁ position, the width of the treatment element 4 is changed to the maximum width x ₃ , and the protrusion of the treatment element 4 due to the eccentric inner ring 41 is further increased. After both the amount and the amount of protrusion of the treatment element 4 due to the rotation of the rotating plate 47 are minimized, the entire operation stops. The timer circuit C ₄ in the control circuit CPU ₂ is
A count-up is started when the mode switch SW ₂ is set to "operation", and when a predetermined time has elapsed, the same operation as when the mode switch SW ₂ is set to "storage" is performed.

Now, the amount of protrusion of the treatment element 4 (the amount of arm protrusion) can be adjusted by rotating the rotating plate 47 using the wire drive unit, as described above, by operating the switches SW ₈ and SW ₉ on the operating device 6. This point will be explained in detail. When both switches SW ₈ and SW ₉ are operated, the control circuit CPU ₂ receiving the corresponding signals outputs the output to the arm protrusion drive circuit J consisting of transistors T ₁ to _{T 4} as shown in FIG. 15. By controlling the voltage levels of the terminals TO ₁ and TO ₂ , the motor M ₂ is caused to rotate in either direction, and the wire 100 is pulled or loosened to adjust the protrusion amount of the treatment element 4. Now, when the power switch SW ₁ is turned on, the control circuit CPU ₂ resets and starts, and by setting both the output terminals TO ₁ and TO ₂ to “L”, the motor M ₂ can rotate. After checking the output state of the micro switch _MS1 for detecting that the protrusion amount is at the minimum, if this is "H", move on to the next step of checking the state of the mode switch _SW2 . , micro switch
If the output of MS ₁ is "L", the motor M ₂ is rotated in one direction until the output of micro switch MS ₁ becomes "H", that is, until the amount of protrusion of the treatment element 4 becomes the minimum. Note that this operation may be performed when the mode switch _SW2 is set to "operation". You can also “storage” mode switch SW ₂ .
In this case, just as the amount of protrusion by the eccentric inner ring 41 is minimized, the amount of protrusion of the treatment element 4 by the rotary plate 47 is also minimized. In any case, the amount of protrusion of the treatment element 4 is made small at the time when the pine surge is started.

Then, at the time when mode switch SW ₂ is set to "operation", that is, at the time when the fir pine surge or the back straightening stroke pine surge is being performed in any position, the switch is turned off.
When SW ₈ is operated, the control circuit
The CPU ₂ sets the output terminal TO ₂ to "H", turns on the transistors T ₁ and T ₄ , rotates the motor M ₂ , and causes the wire 100 to be pulled. As a result, the amount of protrusion of the treatment element 4 is increased. Then, when the operation input to switch SW ₈ disappears or when the output of micro switch MS ₂ becomes "H", motor M ₂ is stopped and switch SW ₈ is turned off.
Resumes the operation that was being performed until it was turned on.

When switch SW ₉ is operated, the control circuit
The CPU ₂ sets the output terminal TO ₁ to "H" and turns on the transistors T ₂ and T ₃ to rotate the motor M ₂ in the opposite direction, thereby reducing the amount of protrusion of the treatment element 4. In addition, when the operation input to switch SW ₉ disappears or when the output from micro switch MS ₁ becomes "H", motor M ₂ is stopped,
Resume the previous operation. Power switch SW ₁
FIG. 16 shows an operation time chart when switches SW ₈ and SW ₉ are operated.

Here, the amount of protrusion of the treatment element 4 can be adjusted steplessly within the adjustment range by rotating the rotary plate 47, and the amount of protrusion can be adjusted by changing the amount of protrusion from the backrest. 84
Since the strength of the massage element 4's contact with the back of the leaning human body is adjusted, the user can arbitrarily select the strength of the pine surge according to his/her preference.

However, the rotating plate 4 in this pine surge machine
The main purpose of adjusting the protrusion amount of the treatment element 4 in step 7 is to be able to knead it from above the shoulder when performing pine surgery on the shoulder. It is set so that sufficient pine surge can be obtained even when the For this reason, when performing pine surgery on areas other than the shoulder, the amount of protrusion is usually kept at a minimum unless the user adjusts the strength. On the other hand, as mentioned above, when the switch SW ₃₂ , which specifies the kneading motion for the shoulder, is operated, the treatment element 4 automatically protrudes to perform massage on the shoulder from above. When this operation of increasing the amount of protrusion is performed regardless of the position of the treatment element 4, a strong pine surge will be applied to that area, which is always dangerous. For this purpose, switch
The operation of increasing the amount of protrusion of the treatment element 4 when the SW ₃₂ is operated is performed after the treatment element 4 has moved to a position corresponding to the shoulder.
That is, as shown in FIGS. 17 and 18,
When the switch SW ₃₂ is operated, the treatment element 4 first moves to the upper limit y ₁ , and then further moves to the maximum width x ₃ position, and then the treatment element 4 is moved to protrude, and then the kneading operation is started. I'm trying to keep it that way.
When the switches SW ₃₀ , SW ₃₃ , and SW ₃₄ for specifying pine surge for other parts are operated from this state, conversely, the amount of protrusion of the treatment element 4 is first minimized, and then the treatment element 4 is moved to the specified position. Of course.

The reason why the treatment element 4 is made to protrude after moving to the maximum width x ₃ is because if it were to protrude when the width is narrow, there is a risk that it will hit the neck. This is to maximize safety since the width varies depending on the width, and if the above-mentioned danger can be sufficiently avoided with the intermediate width x ₂ , then that width may be used.

Further, even when performing kneading massage on the shoulders, the switches SW ₆ and SW ₇ for adjusting the width of the pair of treatment elements 4 and 4 are effective, and when these are operated, An operation for adjusting the width of the treatment element 4 is executed by interruption. However, although there is no problem when the switch SW ₆ that increases the width is operated, when the switch SW ₇ that narrows the width is operated, the pair of treatment elements 4 that protrude greatly,
4, there is a risk of getting your neck caught.
For this reason, when the switch SW ₇ is operated while pine surgery is being performed on the shoulder, when the width of the pair of treatment elements 4, 4 becomes x ₂ , regardless of the state of the switch SW ₇ , The operation to narrow the width is stopped. FIG. 19 shows a slow chart of this operation.

〔Effect of the invention〕

As described above, the present invention includes the treatment element provided via the arm, and also includes the protrusion amount adjusting means and the width changing means.
It is possible to perform sufficient pine surge on the shoulders and moderate pine surge on the neck, back, waist, etc., as well as adjust the strength of the pine surge on these areas.Moreover, the width change range of the treatment element and the protrusion adjustment movement can be performed. Since the interlocking means applies mutual restraint to the range, there is a risk of getting your neck caught or performing extremely strong pine surge when narrowing the interval between the treatment elements when the amount of protrusion is large. can be eliminated and is highly safe.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a chair equipped with an embodiment of the present invention, and FIG. 2 is a perspective view showing the back side of the same chair.
Fig. 3 is a cutaway rear view of the mechanism section as above, Fig. 4 is a cutaway bottom view of the mechanism section as above, Fig. 5 is a cutaway side view of the wire drive unit and treatment element as above, and Fig. 6 is a cutaway view as above for treatment. Figure 7 is an exploded perspective view of the wire drive unit of the same as above, Figure 8 is a side view of the mechanism of the same as above, and Figure 9 is an exploded perspective view of the mechanism for detecting the vertical position of the same as above. Figures 10a and 10b are explanatory diagrams of the vertical position detection as above, Figure 11 is a perspective view of the mechanism for width detection as above, and Figures 12a and b are explanatory diagrams of the width detection position as above, Fig. 13 is a front view of the same controller as above, Fig. 14 is a block circuit diagram of same as above,
FIG. 5 is a specific circuit diagram of the same as above, FIG. 16 is a time chart showing one operation of the same as above, FIG. 20 is a sectional view of the conventional example, FIG. 21 is a side view of the same, and FIG. 22 is a plan view of the same, in which 1 is a main shaft, 2 is a drive shaft, and 3 is the feed shaft, 4 is the treatment element, 8 is the rail, 9 is the rack, 23 is the pinion,
33 indicates a connecting arm.

Claims (1)

[Claims] 1. An eccentric inner ring mounted on a rotationally driven main shaft, which is freely rotatable around the outer periphery of the eccentric inner ring, and is attached via an arm to an outer ring whose rotation around the main shaft is restricted. A pine surge machine equipped with a pair of treatment elements, a width changing means for changing the interval between the two treatment elements, a protrusion amount adjustment means for changing the position of the outer ring around the main axis to change the amount of protrusion of the two treatment elements, A pine surgery machine characterized by comprising interlocking means for suppressing the range of operation for changing the spacing of the treatment elements by the width changing means and the range of operation for adjusting the protrusion amount of the treatment elements by the protrusion amount adjustment means. 2. The pine surge machine according to claim 1, wherein the interlocking means causes the projection amount adjusting means to increase the amount of projection after the width changing means sets the width to the maximum width. 3. The pine surge machine according to claim 1, wherein the interlocking means limits the movement to the minimum width by the width changing means with respect to the setting of the protrusion amount by the protrusion amount adjusting means. 4. The pine surge machine according to claim 1, wherein the protrusion amount adjusting means is capable of stepless adjustment of the protrusion amount.