JPS6157782B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention can be housed in the back of a chair or in a bed;
This invention relates to a pine masturbation machine that performs pine masturbation using rotatably driven pine wheels, and in which the movement of this masturbation shaft and the width between the masturbation wheels are variable.

In addition to making it possible to perform pine surgery using massage wheels that extend from the shoulders and neck to the lower back, the width between the massage wheels can be made variable so that a wide range of pine surgery can be obtained in the shoulder area. Since the width-variable movement of the kneading wheel could be performed over the entire range even in the area corresponding to the lower back, the following problems arose. In other words, the "pressure points" near the waist are concentrated on both sides of the spine, and if the variable width area between the massage rings is set wide to match the shoulders, the variable width area will be too wide at the waist. Not only does this result in an unnecessary range of motion, but there is also the risk of the kneading wheel pinching the lower back or ribs. On the other hand, if the width variable area is set to match the waist, there will be a portion of the shoulder where the pine surge cannot be completed.

The present invention has been made in view of these points, and its purpose is to obtain a wide range of pine surges on the shoulders and back, and to change the width of the massage wheel even to areas that are not needed. We are here to provide you with a pine surge machine that does not surge your pine.

The present invention will be explained in detail below based on illustrated embodiments. This pine surgery machine is built into the backrest of a chair or into a bed, and is used to perform pine surgery on the waist, back, shoulders and neck of the human body. This figure shows a device built into the backrest of a chair that allows the backrest to recline. This chair has a lower frame 81 made of pipes, a seat 82 and armrests 8.
3, the lower part of the frame 85 of the backrest 84 is pivotally connected to the lower frame 81, and the frame 85
A gas spring 86 is attached between the lower end and the lower frame 81, and a lever 87 is provided on the side of the armrest 83.
The backrest 84 can be reclined by expanding and contracting the gas spring ring 86 by the operation, and a pair of rails 8 each having a U-shaped cross section and facing opening surfaces are fixed to the frames 85 on both sides of the backrest 84. A head rest 88 is provided at the upper end of the backrest 84, and support bands 90 are provided vertically on both sides of the back of a cover sheet 89 provided on the front of the backrest 84 up to the headrest 88. A cushion portion 91 is formed on the front surface extending from the periphery of the headrest 88 to both sides of the backrest 84. Here the backrest 8
The cushion portion 91 in 4 has a shape that increases in width from approximately the center in the vertical direction toward the bottom so that the waist of the human body fits into it, and is designed not only to function as a mere cushion but also to support the human body's back from both sides. ing.

A rack 9 is provided at each opening edge of the pair of rails 8.
are fixed along the longitudinal direction, and both rails 8,
8, a pinion 23 that engages with the rack 9, a pine surge mechanism, and rollers 2 that roll within each rail 8.
A mechanism section with 2 is installed. This mechanism unit has a motor M that can freely rotate in the forward and backward directions, and is self-propelled along the rail 8, and has a main shaft 1 with a pair of kneading wheels 4, 4 attached to the center, and a support substantially parallel to the main shaft 1. A gearbox 10 is disposed at one end of the frame 40, and a motor M is disposed at the other end.As shown in FIGS. 3 and 4, a cylinder body 21 is attached to both ends of the main shaft 1 so as to freely rotate, and A roller 22 that rolls within the rail 8 is further attached to this cylindrical body 21 so as to be freely rotatable, and a total of four rollers 22, including rollers 22 that are freely rotatably attached to both ends of the support frame 40, form the mechanism. is installed between the rails 8, 8. The main shaft 1 is a hollow shaft, and a movable shaft 2 is coaxially inserted therethrough, and the cylinders 21 are attached to both ends of the movable shaft 2 by spline connection. Each cylindrical body 21 is provided with the pinion 23 that engages with the rack 9, so that when the moving shaft 2 is rotated, the mechanism moves up and down along the rail 8 on the back surface of the backrest 84.

The pair of kneading rings 4 attached to the main shaft 1 are both composed of an eccentric inner ring 41 and an outer ring 43 that is freely rotatably attached to the outer periphery of the eccentric inner ring 41 via balls 42. A groove 44 is formed in the axial direction on the circumferential surface, and the groove 44 slidably engages with a protrusion 45 provided in the axial direction on the outer circumferential surface of the main shaft 1, so that the eccentric inner ring 41 is moved together with the main shaft 1. The grinding wheel 4 rotates and is slidable in the axial direction of the main shaft 1. When the main shaft 1 is rotated, at least the eccentric inner ring 41 of the massaging ring 4 is rotated.
1 are both eccentric by the same amount in the same direction, and are mounted so as to be inclined in opposite directions with respect to the main shaft 1. Therefore, with the rotation of the main shaft 1, not only the amount of protrusion of the two kneading wheels 4, 4 from the main shaft 1 toward the cover sheet 89 side changes periodically, but also the distance between the two kneading wheels 4, 4 on the cover sheet 89 side also changes. It changes periodically. The rotation of the massage wheels 4, 4 by the main shaft 1 massages the back of the human body leaning against the backrest 84 through the cover sheet 89, thereby performing a massage. By the way, there are two types of pine surge depending on the direction of rotation of the massaging wheel 4.
That is, there is a case where the parts of both kneading wheels 4, 4 that protrude a large amount from the main shaft 1 press the back of the human body from above to below through the cover sheet 89 (kneading), and vice versa. There are two types: sideburns that move from downwards to upwards (sideburns). This point will be touched upon again when explaining the operation.

Next, a mechanism for changing the width (pitch) between the two massage wheels 4, 4 will be explained. gearbox 10
A feed shaft 3 parallel to the main shaft 1 is installed across the upper part of the motor M and a retaining plate 80 fixed to the motor M.
This rotationally driven feed shaft 3 has a right-handed threaded portion 31 on one side from the center in the axial direction, and a left-handed threaded portion 32 on the other side.
One end of a connecting arm 33 is screwed into both threaded portions 31 and 32, respectively. The other ends of both connecting arms 33 are connected to the eccentric inner ring 41 of each kneading wheel 4, and since the eccentric inner ring 41 is slidable in the axial direction of the main shaft 1 as described above, the feed shaft 3 is If it is rotated in the opposite direction, the distance between the two connecting arms 33 and the pitch between the two massaging wheels 4 will be widened, and if it is rotated in the opposite direction, it will be narrowed. However, in this embodiment, when the feed shaft 3 rotates, the main shaft 1 is also necessarily rotated as will be described later, so the connecting arm 33
The massaging ring 4 is connected to the eccentric inner ring 41 through a thrust bearing so that it can rotate freely. That is, as shown in FIG. 4, a pair of lace plates 46 are attached to the outer periphery of an extension cylindrical portion 41a provided along the inner surface of the eccentric inner ring 41, with both lace surfaces of the inner flange 36 at the end of the connecting arm 33, and both laces. A thrust bearing is formed by disposing a ball 47 held by a retainer 48 between the facing surfaces of the plate 46 and the inner flange 36, so that the eccentric inner ring 41 and the connecting arm 33 can freely rotate. Here, both connecting arms 3
3 is placed between a pair of kneading wheels 4, 4, and the lace plate 4
A thrust spring 49, which is a compression coil spring, is provided between the retaining ring 50 fixed to the end of the extended cylindrical portion 41a of the eccentric inner ring 41, and the thrust spring 49 presses and biases the thrust bearing toward the kneading ring 4. However, the movement of the connecting arm 33 for narrowing the width between the massaging wheels 4 is transmitted to the massaging wheels 4 via the thrust spring 49 for the following reason. In other words, when rotating the feed shaft 3 to narrow the pitch between the two kneading wheels 4, 4, or when rotating the kneading wheel 4 in a state where the pitch is narrow, in places where a large pinching force is applied, such as the nape of the neck, The two kneading wheels 4, 4 are moved in the axial direction where the pitch becomes wider against the thrust spring 49, thereby improving safety and providing a soft kneading taste, and at the same time reducing the backlash of the thrust bearing. This is eliminated by the pressure applied by the thrust spring 49.

As is clear from the above, there are three rotationally driven axes in this pine surge machine: the main shaft 1, the moving shaft 2, and the feed shaft 3, and all of these are driven by the motor M, which can rotate forward and backward. be done. The main shaft 1 and the moving shaft 2 can be driven alternatively, and the feed shaft 3 is configured so that it can be connected to the motor M only when the main shaft 1 is connected to the motor M. be. This power switching mechanism and gearbox 1
To explain the deceleration mechanism in 0, the power switching mechanism consists of a planetary device 5, two electromagnetic brakes SL ₁ ,
SL ₂ and an electromagnetic clutch SL ₃ , and the output from the planetary device 5 is alternatively connected to a pair of worm shafts 1.
1 and 12. A worm wheel 13 splined to the outer periphery of the cylindrical body 21 meshes with the worm shaft 11, and a worm wheel 14 supported by a shaft 15 meshes with the other worm shaft 12. The rotation of the worm wheel 13 is the movement axis 2
The rotation of the other worm wheel 14 is transmitted to the main shaft 1 by an elliptical gear 16 also supported by the shaft 15 and a driven elliptical gear 17 fixed to the main shaft 1 and meshing with the elliptical gear 16.

In the illustrated example, the planetary device 5 is configured with a ball bearing to reduce the size and operation noise. That is, the sun gear is the inner race 51, the planet gear is the ball 52, the internal gear is the outer race 53, and the planet carrier is the retainer 5.
4, and an inner race 51 is fixed to the outer periphery of a collar 56 which is freely rotatably attached to the lower end of the worm shaft 11 via a bearing 55. This collar 56 includes a pulley 79 and a belt 6 provided on the output shaft of the motor M.
A pulley 57 connected by 3 is integrally provided.
Further, a retainer 54 is fixed to the worm shaft 11, and an outer race 53 is fixed to a cover 59 supported by a bearing 61. A thrust spring 60 that presses the outer race 53 in the thrust direction and applies a thrust preload force between the outer race 53, the ball 52, and the inner race 51.
A pulley 58 is integrally formed on the upper part of the cover 59 that covers the worm shaft 12 and the retainer 54, and is connected to a pulley 62 provided at the lower part of the worm shaft 12 by a belt 64.
Now, if the collar 56 and the inner race 51 are rotated by the motor M with braking applied to the worm shaft 11, the ball 52 will be prevented from revolving by the retainer 54, and will only rotate on its own axis, causing the outer race 53 to rotate. Rotate. Then, the worm shaft 12 rotates via the pulley 58, belt 64, and pulley 62.
Conversely, if braking is applied to the worm shaft 12, the outer race 53 is locked through the belt 64, so the balls 52 rotate and revolve, causing the worm shaft 11 to rotate through the retainer 54.

Braking is applied to the worm shafts 11 and 12 that are opposite to the worm shafts 11 and 12 from which the output is to be taken out, and this braking is done by electromagnetic brakes SL ₁ and SL ₂ provided at the ends of each worm shaft 11 and 12. Let's do it. Both electromagnetic brakes SL 1 and SL are provided except that the electromagnetic brake SL ₁ for the worm shaft 11 is provided at the upper end of the worm shaft 11 and the electromagnetic brake SL ₂ for the worm shaft 12 is provided at the lower end of the worm shaft ₁₂ below the pulley 62. ₂ have the same configuration, and both have coil 6.
5, Yoke 66, Core 67, Brake shoe 6
8, and a return spring 69, and a coil 65.
The brake shoe 68 is activated by the excitation force obtained by energizing the
is attracted against the return spring 69, and the worm shaft 1
The worm shafts 11 and 12 are braked by bringing brake shoes 68, which are spline-coupled to each of the cores 67 and slidable in the axial direction, into contact with the core 67.

The remaining feed shaft 3 is driven through a worm shaft 12 and an electromagnetic clutch _SL3 . A worm shaft 34 is coaxially provided directly above the worm shaft 12, and a worm wheel 35 provided at one end of the feed shaft 3 meshes with the worm shaft 34. These worm shafts 34
The gearbox 94 housing the worm wheel 35 and the worm wheel 35 is mounted on a yoke support stand 93 on the gearbox 10.
It is attached to the top of the electromagnetic clutch SL ₃ , which is attached via the The electromagnetic clutch SL ₃ includes a coil 70, a yoke 71, a core 72, and a clutch shoe 7.
3. It is composed of a return spring 74 and the like, and the clutch 73 is attached to the upper end of the worm shaft 12 by spline connection so as to be able to transmit rotational force and to be slidable in thrust, and between the upper end of the worm shaft 12 and the outer periphery. The core 72 on which the bearing 75 is disposed is attached to the worm shaft 34 by spline connection, and the coil 7
When energized to 0, the clutch 73 returns to the spring 7.
4 and contacts the core 72, the rotation of the worm shaft 12 is transmitted to the worm shaft 34 through the clutch 73 and the core 72, and the feed shaft 3 is rotated.

By the way, as will be described later, this pine surge machine automatically adjusts the vertical position of both kneading wheels 4 along the rail 8 and the both kneading wheels 4 according to the input from the operating device 6.
It has the function of determining the width between the two and the rotational position of the massaging wheel 4. The means for detecting each movement for this purpose will be described. First, the vertical position of both kneading wheels 4 along the rail 8 is determined by the rotation of the first disc 29 and the second disc 30 and the two photoelectric types, as shown in FIGS. 5, 7, and 8. Detected by switches PS ₁ and PS ₂ .
Both disks 29 and 30 rotate together with the rotation of the moving shaft 2, and the moving shaft 2 is rotated so that the moving shaft 2 rotates no more than one rotation within the movement range of the moving shaft 2 along the rail 8. A gear 24 attached to the worm wheel 13, a gear 25 meshing therewith, and a gear 2
5 and a gear 28 connected through a meshing clutch 26 is used as a reduction gear train, and a first disc 29 is meshed with the gear 28. The interposition of the dog clutch 26 is for convenience during assembly.
With the mechanism section set at the top of the backrest 84, the meshing clutch 26 is removed and both are moved so that the top end detection signal is output by the first disc 29, the second disc 30, and the switches PS ₁ and PS ₂ . The discs 29 and 30 are rotated, and the dog clutch 26 is brought into engagement by the biasing force of the spring 27. In this embodiment, the upper and lower positions of the mechanism to be detected are an upper end y ₁ corresponding to the neck and shoulder position, a lower end y ₃ corresponding to the waist position,
Then, the first circular plate 29 is provided with a circular arc hole 29a having a center angle corresponding to the _{moving distance between the y 1 point} and the y ₂ point, and the second
The circular plate 30 has a circular arc hole 30a having a center angle approximately equal to the value obtained by subtracting the rotation angle of the second circular plate 30 corresponding to the movement between the upper and lower ends of the mechanism section from 360 degrees.
It is placed so that it overlaps with a. Both switches PS ₁ are photoelectric type, so that the switch PS ₁ detects the arc hole 29a and the switch PS ₂ detects the arc hole 30a.
The light emitting element and the light receiving element of PS ₂ are respectively connected to the first disk 29.
and the second disk 30. The light emitting element receives the light emitted from the circular arc holes 29a and 30.
If the on state is when the signal is received through a, then when both switches PS ₁ and PS ₂ are on, the mechanism is at point y ₁ , and when only switch PS ₁ is on, the mechanism is at points y ₁ and y ₂ . When the PS ₁ switch turns from on to off, or from off to on, the mechanism changes.
Note that there is a mechanism at point _y2 , between point _y2 and point _y3 if both switches PS ₁ and PS ₂ are off, and at point _y3 when only switch PS ₂ is on. It detects it.

The width between the kneading wheels 4 can be detected by attaching one end of a detection plate 37 parallel to the feed shaft 3 to one of the connecting arms 33 and attaching the two to the outer surface of the gearbox 94, as shown in FIGS. 9 and 10. two photoelectric switches
The other end of the detection plate 37 provided with two elongated holes 38a and 38b is made to pass between each light emitting element and the light receiving element of PS 3 and PS ₄ , and _{the switch PS 3 passes} through the elongated hole 38a.
The switch PS ₄ is adapted to detect the elongated hole 38b. Regarding this width, there are three points: minimum width x ₁ corresponding to the position of the neck muscles and erector spinae muscles, intermediate width x ₂ corresponding to the inner position of the shoulder blades, and maximum width x ₃ corresponding to the wide part of the shoulders. shall detect and switch PS ₄
If switch PS ₃ is turned off at one end of the elongated hole 38a when PS 3 is on, point _{x 1} is turned on, and if both switches PS ₃ and PS ₄ are turned on, switch _{PS 3 is} turned on between points When Switch PS ₄ goes from on to off or off to on, it is x ₂ points, if only Switch PS ₃ is on, it is between x ₂ points and x ₃ points, and when Switch PS ₄ is off and Switch PS 3 is off, it is between x 2 points and x _{3 points} . If it is off, the presence of both kneading wheels 4, 4 at the _x3 points is detected. FIG. 12 shows the relationship between the on/off states of the switches PS ₁ to _{PS 4} and the vertical position and pitch of the massaging wheel 4.

A magnet 19 is attached to the surface of the disc 18 fixed to the main shaft 1 on the gearbox 10 side in order to detect the amount of protrusion toward the cover sheet 89 that varies depending on the rotational position of the kneading wheel 4 for reasons described later. At the same time, a magnet 1 is placed on the side of the gearbox 10 at a position sandwiching the main shaft 1, as shown in FIG.
A pair of reed switches that turn on in response to 9.
LS ₁ and LS ₂ are installed. Here, when the reed switch LS ₁ is turned on while facing the magnet 19 of the disc 18 that rotates together with the massaging wheel 4, the reed switch LS ₂ is turned on so that the amount of protrusion of the massaging wheel 4 toward the cover sheet 89 side is maximum. When the switch is turned on, the amount of protrusion is kept to a minimum. It goes without saying that the switches PS ₁ to PS ₄ and the reed switches LS ₁ LS ₂ , which are non-contact switches, may be replaced with contact switches such as limit switches.

The selection operation of the operation in the pine surge machine constructed as described above is performed by the operating device 6 which is detachably attached to the armrest 83. As shown in FIG. 11, this operating device 6 is connected to the main body control unit and power supply circuit D disposed inside the chair via a connecting cord 7.
3-position switch SW ₂ for "storage", "movement", and "stop"; push-on type switch for "neck", "shoulder", "back", and "waist" for "back straightening" and massaging; selectable for operation A switch SW ₃ composed of switches SW ₃₀ to _{SW 34} that serve as molds, push-on type switches SW ₄ and SW ₅ that specify the kneading position from top to bottom,
push-on type switch SW ₆ for specifying the kneading width, which is the pitch between the two kneading wheels 4, from wide to narrow;
A power pilot light emitting element L 1 which has SW ₇ and lights up in response to the power switch SW ₁ in the main body control section, a light emitting element L ₂ which blinks during a period before moving to a specified operation and is normally turned _off , and switch
It has light emitting elements L ₃₀ to L ₃₄ provided to light up corresponding to SW ₃₀ to SW ₃₄ , respectively. In particular, the light emitting elements L ₃₁ to L ₃₄ disposed on the sides of the switches SW ₃₁ to SW ₃₄ , respectively, are simultaneously connected to the operating device 6.
The positions correspond to the schematic diagram of the human body provided on the surface of the screen. In other words, the light emitting element L ₃₁ is placed at the neck position in the schematic diagram, and the switch SW ₃₁ for specifying the "neck" is placed on the side of this to make it easier to identify. Switches SW ₄ and SW ₅ also have triangular or inverted triangular push buttons, so that the direction of movement can be determined from the shape of the push buttons, and switches SW ₆ and SW ₇ are compatible with "wide" and "narrow" respectively. An arrow is displayed to make it easier to identify.

If the controller 6, which has a large number of switches, is to be detachable from the chair, if each switch is connected to the main body control section using an independent signal line, the number of signal lines will be extremely large, and the connection cord will become large. , the operability becomes worse. Therefore, as shown in FIGS. 14 and 15, control circuits CPU ₁ and CPU ₂ such as one-chip microcomputers are provided inside the operating device 6 and inside the main body control section, respectively, and data signals based on pulse codes are connected between the two. shall carry out the sending and receiving of
The main body control unit and power supply circuit D can be connected to the controller 6 using only two power wires to the controller 6 and two signal wires for transmitting and receiving data signals, that is, a 4-core curl type connection cord 7. The operability of the operating device 6 is improved by having the operating device 6 at hand so as to be connected, and by using a thin, curled connecting cord 1. In FIG. 14, A is a light emitting element drive circuit, D is a power supply circuit, E is a vertical position detection circuit consisting of switches PS ₁ and PS ₂ , F is a width position detection circuit consisting of switches PS _{3 and PS 4, and G is a width position detection circuit consisting of switches PS 3} and PS ₄ . is a protrusion amount detection circuit consisting of reed switches LS ₁ and LS ₂ , H is a solenoid drive circuit, I
is the motor drive circuit. In response to the data transmission instruction signal created and transmitted by the control circuit CPU ₂ using its signal forming circuit C ₃ , the control circuit CPU ₁ of the operating device 6
In this case, each pulse code data signal consisting of, for example, 4-bit pulses is created in the signal forming circuit B ₁ according to the operated SW ₂ to SW ₇ , and this is repeated several times with a rest period in between to send it to the main body control section. control circuit CPU ₂ . and control circuit
In the CPU ₂ , if the data signal sent by the signal discrimination circuit _C2 matches multiple times, it is latched and the input signal from each detection circuit EFG is compared with the contents of the latched data signal. The operation instruction circuit C ₁ collates the data and sends an output signal to each drive circuit H, I, and sends a reception confirmation data signal to the control circuit CPU ₁ and, if necessary, a light emitting element that indicates preparation.
The lighting instruction signal for _L2 is repeatedly transmitted until the kneading wheel 4 reaches the specified state. Then, the control circuit CPU ₁ samples the lighting instruction signal multiple times in the signal discrimination circuit B ₂ , and if they match, the lighting instruction signal of the light emitting elements L ₂ and L 30 to L 34 is transmitted to the light emitting elements L 2 and L ₃₀ to _{L 34} as necessary. Output to drive circuit A. However, for switches _SW4 to _SW7 , the pulse code data signal is transmitted during the ON period, and the control circuit
The CPU ₂ executes the operation only during the reception period.

Next, operations performed in response to inputs to the operating device 6 will be explained. When the power switch SW ₁ is turned on, only the light emitting element L ₁ lights up. At this time, if the switch SW ₂ is in the "stop" position, it will not operate at all, and even if it is in the "storage" position and the kneading wheel 4 is in the storage position, it will not operate at all. But the switch
If SW ₂ is in the “operate” position, the electromagnetic brake
SL ₁ applies braking to the worm shaft 11 and the motor M rotates clockwise, rotates only the main shaft 1, and drives the kneading wheel 4 via the worm shaft 12 and the main shaft 1 at the position when the power switch SW ₁ is turned on. Have the child perform a kneading motion. By the way, when the kneading wheel 4 is in the storage position, it means that the kneading wheel 4 is at the upper end, has the maximum width, and has the smallest amount of protrusion, and when the power switch SW ₁ is turned on, the kneading wheel 4 is in this position. Even if it is not in the storage position, Switch SW ₂ is "stored"
If it is in the position, it will perform the same operation as when switch SW ₂ is changed from "operation" to "storage" after using this pine surge machine. i.e. control circuit
The CPU ₂ sends a lighting instruction signal to the control circuit CPU ₁ of the operating device 6 to turn on the light emitting element L ₂ indicating that the light emitting element L 2 is in preparation, causing the light emitting element L ₂ to blink, and first rotates the motor M to the left and turns the electromagnetic brake SL _{2 on} . The worm shaft 12 is braked by the worm shaft 12, and the grinding wheel ₄ is moved upward to the uppermost position y1. When the _y1 point is reached, the motor M continues to rotate counterclockwise, and the electromagnetic brake _SL1 and the electromagnetic clutch _SL3 are turned on. and the width of massaging wheel 4 is the maximum width x ₃
Then, only the electromagnetic clutch SL ₃ is disconnected and the massaging machine 4 is rotated at the x ₃ , y ₁ position. Then, when the reed switch LS ₂ is turned on by the magnet 19 during this one rotation, that is, when the amount of protrusion of the kneading wheel 4 becomes the minimum, the full load and the light emitting element are removed.
Turn off L ₂ . When the light emitting elements L ₃₀ to L ₃₄ are lit, these are also turned off. When the massaging wheel 4 is in this storage position, a person who sits down vigorously on the chair is prevented from hitting the massaging wheel 4 strongly with his or her body.

Now, to perform kneading and pine surge at any position, set switch SW ₂ to "operation". As a result, the kneading wheel 4 starts rotating at that position and performs the rubbing operation as described above, but to change this position, the switches _SW4 to _SW7 are selectively operated. While switch SW ₄ is on, the motor M turns to the left and the electromagnetic brake
Only SL ₂ operates, and the rotation of the moving shaft 2 moves the kneading wheel 4 upward. When the switch SW ₅ is turned on, the massaging wheel 4 is moved downward, and when the switch SW ₆ is turned on, the motor M is rotated to the left only during that period, and the electromagnetic brake SL ₁ and the electromagnetic clutch SL ₃ are activated. so that the pitch of both massage wheels 4 is widened. If the switch SW ₇ is turned on, the motor M is rotated clockwise to narrow the width of the kneading wheel 4. While the switches SW ₄ to SW ₇ are turned on, the light emitting element L ₂ is blinked to indicate that the robot is moving. And these switches SW ₄ ~ SW ₇
When the hand is released, the kneading wheel 4 resumes the kneading operation at the current position.

However, in the above-mentioned moving operation, the operation by turning on the switch SW ₅ and the switch SW ₆ differs depending on the initial position of the kneading wheel 4. That is, in this embodiment, an operation prohibited area _S2 is provided as a program in the control circuit CPU ₂ within the range in which the kneading wheel 4 can originally move, and the above-mentioned switch _SW5 ,
Movement of the kneading wheel 4 by SW ₆ is in the prohibited area S ₂
This is because there is a risk of it entering. No-operation zone S ₂
is the area indicated by diagonal lines in FIGS. 12 and 13, and is an area surrounded by ₃ y ₂ y points and ₃ x ₂ x points. If the kneading wheel 4 were to perform a kneading operation in this area, there is a risk of pinching the lower back or ribs. In order to eliminate this danger and at the same time make it possible to perform a wide range of pine surges in the shoulder area, and to allow the massaging wheel 4 to be stored, there is a movement-prohibited area at the bottom of both sides of the movable range of the massaging wheel 4. S ₂ is provided to make the operating area S ₁ T-shaped. Furthermore, in the area _between
There is a prohibited movement area S ₃ due to the fact that the movement is prohibited. Due to the existence of the movement-prohibited area _S2 , the movement area _S1 also allows free vertical movement of the kneading wheel 4 from the neck and shoulders to the waist inside the _x2 point, as is clear from the movement described later. and x ₂
It is substantially divided into two areas, an area located outside the point where downward movement is restricted, and which also serves as storage for the kneading wheel 4. In addition, the operating area S ₁ set in this way
It is also a range that sufficiently covers the points of existence of "acupoints" located on the back of the human body. Furthermore, as mentioned at the beginning, the shape of the cushion part 91 in the backrest 84 of the chair is such that the width is increased at the bottom, so as to correspond to the movement prohibited area S ₂ and to surround the movement area S ₁ . This is due to the positioning of the seat, with the aim of improving sitting comfort and safety, and making it possible to perform pine surgery on the necessary parts of the human body.Furthermore, in terms of design, the shoulder area This visually conveys that it is capable of performing a wide range of pine surges. Now, since the operation-prohibited zone _S2 is provided below the upper portions of both sides of the operation zone _S1 , the kneading wheel 4 can be moved downward in the following two ways. When the initial position of the kneading wheel ₄ is directly above the movement prohibited area S2 when the kneading wheel 4 is moved downward by the switch _SW5 , the switch _SW5 is not turned on as shown in section A in Fig. 16. Therefore, first move the kneading wheel 4 downward, and when the kneading wheel 4 has descended to point _y2 , the operation instruction circuit _C1 immediately stops the downward movement of the kneading wheel 4 based on the input from the vertical position detection circuit E. te x ₂
The width between the kneading wheels 4 is narrowed until the point is reached, and then the kneading wheels 4 are moved down again. It passes along route _R1 in Figure 12. If the initial position of the kneading wheel 4 is between the _x2 points, it will immediately move downward as shown in route _R2 . In this way, as shown in route R ₁ , when a downward movement and an action to narrow the width are required, the downward movement is first performed until the y ₂ point is reached, because the downward movement reaches the y ₂ point. Whether it will pass or not depends on the user's operation of switch SW ₅ , and if you first narrow the width and then move it downwards, it will sometimes only move slightly downwards, as shown in Figure 12. This is because the planetary device 5 will have to travel along route R ₃ as shown in Figure 3. Considering the function of the planetary device 5, that is, the ability to move up and down and change the pitch at the same time, we are trying to move in the shortest possible distance. It is. If the initial position of the kneading wheel 4 is above the _y2 point, the kneading wheel 4 can be moved to widen the width up to _x3 by turning on switch SW ₆ , but if it is below the _y2 point, the kneading wheel 4 can be moved to the _x2 point. Then stop the movement of the rubbing wheel 4. In any case, when the switches SW ₄ to _{SW 7} continue to be turned on even after the kneading wheel 4 reaches its travel limit, the entire load is stopped and the user is notified that the travel limit has been reached. , also switch
The sideburn movement is restarted as soon as the hand is released from SW ₄ to SW ₇ .

Next, the functions of switch SW ₃ will be explained. Here, "stretching the spine" by switch SW ₃₀ is an operation in which the massaging wheel 4 is moved up and down without rotationally driving, and the outer ring 43 of the massaging wheel 4 is rolled along the spine, and switch SW ₂ is set to "operation". Then, when the switch SW ₃₀ is turned on, the control circuit CPU ₂ first performs its preparation operation by transmitting and receiving the data signal as described above, and also lights up the light emitting element L ₃₀ of the operating device 6 and blinks the light emitting element L ₂ . have them do it.
This preparatory operation means that when the kneading wheel 4 is between points x ₂ and x ₃ , the width between the kneading wheels 4 is narrowed and moved to the x ₂ point, and when the kneading wheel 4 has moved to the x ₂ point, Alternatively, when the kneading wheel 4 is between the x ₁ point and the x ₂ point from the beginning, the kneading wheel 4 is rotated, and when the reed switch LS ₁ is turned on during this one rotation, the light emitting element L ₂ is turned off and the kneading wheel 4 is turned off. Start the upward movement. The upward movement is started with the amount of protrusion of the kneading wheel 4 maintained at the maximum. When the y _-1 point is reached, the direction of rotation of the motor M is reversed and moved downward by the input from the vertical position detection circuit E. When it reaches the lower end y ₃ point, it moves upwards. It automatically flips over at the top and bottom ends and continues operation. Further, when the switches SW ₄ to SW ₇ are turned on during the operation by the switch SW ₃₀ , the operations by the switches SW ₄ to _{SW 7} are executed interrupting the above-mentioned back straightening operation. However, the light emitting element _L30 remains lit. That is, if switch SW 4 is pressed while the kneading wheel ₄ is moving downward, at that point the kneading wheel 4 changes to upward movement as shown in section B in Fig. 16, and switch SW ₅ is pressed while the kneading wheel 4 is moving upward. If so, it will start moving downwards at that point. This allows manual reversal. Moreover, if switches SW ₆ and SW ₇ are pressed, the operation changes to widening or narrowing the width between the massaging wheels 4 only between the x ₂ point and the x ₁ point, and after this, the protruding Set the amount and return to the original operation. While both switches SW ₆ and SW ₇ are pressed and while the protrusion amount is being set, the light emitting element L ₂
flash. Furthermore, even if the kneading wheel 4 reaches the positions y ₁ and y ₃ , only the motor M is stopped when the switches SW ₄ and SW ₅ , which designate the operation beyond these limit points, are pressed. Furthermore, if the switches SW ₆ and SW ₇ are still pressed even after reaching the limit points of x ₁ and x ₂ , the entire load is turned off while the light emitting element L ₃₀ remains lit, and the switches SW ₆ and SW ₇ are turned off. If so, the rotational reversal operation is returned to after the protrusion amount is set.

When the switch SW ₃₁ is turned on, the light emitting element L ₃₁ lights up and the light emitting element L ₂ blinks, and the massaging wheel 4 is first turned _on.
Move up to point, then press wheel 4 until x ₁ point.
determine the interval. When the kneading wheel 4 reaches the _x1 , _y1 point, the light emitting element _L2 is turned off and kneading starts. If switches SW ₄ to _{SW 7} are turned on after switch SW ₃₁ is turned on, only during the period when these switches SW ₄ to SW ₇ are turned on,
When the light-emitting element L ₂ flashes, the kneading is stopped and the massaging wheels 4 are moved up and down or the width between the kneading wheels 4 is changed, and when the switches SW ₄ to _{SW 7} are released, the light-emitting element L ₃₁ is kept lit and moved by these. Massage wheel in position 4
The sideburns caused by the rotation of the sideburns are resumed. switch
When SW ₃₂ is turned on, the light emitting element L ₃₂ is turned on, and while the light emitting element L ₂ is blinking, the kneading wheel 4 is transferred to the vertical position detection circuit E and the width position detection circuit F.
Based _{on the} input _from
At this time, the kneading operation starts.
Further, when the switch SW ₃₃ is turned on, the light emitting element L ₃₃ is turned on, and the light emitting element L ₂ blinks, and after the following operation is performed, sideburns in the "back" position are started. In other words, when the position of the kneading wheel 4 at the time when the switch SW ₃₃ is turned on is above the point _y2 , that is, when the switch PS ₁ is on, the rotation of the kneading wheel 4 begins as shown in section C in Fig. 16. continues in the same direction as the previous rotation direction, and when reed switch LS ₂ is turned on during this one rotation, it shifts to the downward movement. The kneading wheel 4 is moved downward with its protrusion amount reduced. This is because when moving the kneading wheel 4, which was previously massaging the shoulders and neck, to a downward movement, if the downward movement is performed by switch SW ₅ , the downward movement will stop as soon as you release your hand from switch SW ₅ . , during the period of movement to the designated position by switch SW ₃₃ or switch SW ₃₄ , the downward movement is not due to the user's will, and as will be described later, the downward movement will be stopped by turning on switches SW ₄ to SW ₇ . However, if the massaging wheel 4 is moved downward by turning on both switches SW ₃₃ and SW ₃₄ while the amount of protrusion of the massaging wheel 4 is still large, there is a risk that the massaging wheel 4 will strongly press the shoulders etc. from above. be. In order to eliminate this risk, first reduce the amount of protrusion and then move it downward. Now, when we reach the y ₂ point with this downward movement,
When the kneading wheel 4 is at a position wider than the _x2 point, the pitch of the kneading wheel 4 is narrowed so that it comes to the _x2 point, and after that, the sideburns are started. However, if the pitch of the kneading wheel 4 is between the x ₁ point and x ₂ from the beginning, the sideburns will start when the kneading wheel 4 reaches the y ₂ point in its downward movement. Furthermore, if the initial position is below the _y2 point, since there is a kneading wheel 4 between the _x1 point and the x1 point, the upward movement is performed until the _y2 point is reached, and then the sideburns are immediately started. When the switch SW ₃₄ is turned on, the light emitting element L ₃₄ lights up, and the light emitting element L ₂ blinks, so that the rubbing wheel 4 is positioned between the x ₁ point and the x ₂ point and at the y ₃ point. First, move the massaging wheel 4. The downward movement at this time is performed after reducing the amount of protrusion of the kneading wheel 4 in the same way as when the above-mentioned switch SW ₃₃ was turned on, and also when the above-mentioned switch SW ₅ was turned on while avoiding the movement prohibited area _S2 . The process continues through similar routes R ₁ and R ₂ until reaching the _y3 point. Thereafter, the kneading wheel 4 is caused to perform a rolling operation. It should be noted that if these switches SW ₃₁ to _{SW 34} are turned on once and the specified positions are being kneaded or kneaded down, if the switches SW ₄ to _{SW 7} are turned on, this specified operation will be performed on the light emitting elements L ₃₁ to L. ₃₄ is interrupted and executed, and if this specified operation is performed beyond the travel limit, or if two or more switches SW ₄ to SW ₇ are turned on at the same time, the entire load is turned off and the switch is turned off. After waiting for SW ₄ to _{SW 7} to turn off, the operation of raising or lowering the sideburns is resumed at the position after the movement.

As is clear from the above explanation, the switch
For SW ₃₁ to _{SW 34} , input one of SW ₃₀ .
neck, shoulders, and neck without manual alignment.
The kneading wheel 4 automatically moves to any of the four locations on the back or waist and starts kneading on the spot, or automatically sets the width and starts stretching the back. If the set location is different from the desired position for pine surge, the specified operation of switches SW ₄ to _{SW 7} for manual movement will be interrupted and executed, and the kneading operation or back straightening operation will be performed at the moved position. Since it is restarted, the operation can be performed at the desired position. Moreover, although it was not mentioned in the above explanation of the operation, if the switches SW ₄ to SW ₇ are operated while the switches SW ₃₀ to _{SW 34} are being turned on and moving to the designated location, that is, while the light emitting element L ₂ is blinking. In this case, the operation instruction circuit C ₁ cancels the output for moving to the specified location and starts the specified operation of switches SW ₃₀ to _{SW 34} at that point, so that the output for moving to the specified location is started. When a place requires pine surge, it is possible to immediately switch to pine surge, so the operability is extremely good.

By the way, there are two types of kneading operation: kneading and kneading, and when switches SW ₃₁ to _{SW 34} are turned on, only the shoulders are kneaded by the output from control circuit CPU ₂ , and other designated locations are kneaded. I have already mentioned that it is a downward motion, but this is because massaging is more effective for the neck, back, and lower back, and lowering is more effective for the shoulders.The direction of rotation of the massaging wheel 4 is specified. This eliminates the need for an operation switch to avoid the complexity associated with an increase in the number of switches, and improves the pine surge effect by simply specifying the kneading location. In addition, in conjunction with this, after setting switch SW ₂ to "operation", when massaging operation is performed at any location by operating switches SW ₄ to SW ₇ without operating switch SW ₃ , the control circuit CPU With the command from ₂ , light emitting element L ₂ is turned on instead of blinking,
It is designed to prompt you to operate Switch SW ₃ . This is because when massaging the shoulders, even though lowering the sideburns is effective, in cases like the above, only the sideburns are done as described above, and it is not possible to do it automatically by operating switch SW ₃ . This is because the position of the massage wheel 4 can be adjusted when it is set, so it is preferable to use the switch SW ₃ to perform massage at an arbitrary position. In addition, a buzzer or the like may be used to prompt the operation of the switch SW ₃ , but if the light emitting element L ₂ is also used for the preparation display, the display will not be complicated and the cost will be low. . In addition to turning on the light to distinguish the blinking during preparation, the blinking speed may be changed.

_The timer circuit C ₄ in the control circuit CPU ₂ shown in FIG.
Or switch SW ₂ is "operating" and the power switch is turned on.
Approximately 15 minutes after turning on SW ₁ , switch SW ₂ is turned on.
It outputs the same data signal to the operation instruction circuit C ₁ as when the switch SW 2 is set to "storage", and if the switch SW ₂ is still in "operation" even after this time has elapsed, the storage operation of the massaging wheel 4 is started. This is what I try to do. This is done in consideration of the case where the user falls asleep while receiving pine surge while sitting in a chair, and is intended to eliminate the effects of excessive pine surge. However, if the user wants to receive the pine surge continuously, it can be reset by operating the switches _SW2 to _SW7 . If you want to finish the pine surge, just switch SW ₂ between "storage" and "stop". When set to "storage", after the massaging wheel 4 moves to the storage position as described above,
All loads are turned off. When "stop" is selected, the entire load is turned off at that point. If you want to cancel the switch SW ₃ after operating one of the switches SW 3, you can set the switch _{SW 2 to} "storage" or "stop" and then switch it to "operation" again. As is clear from these explanations, the control circuit CPU ₂ recognizes each operation of the operation switch group SW ₂ to SW ₇ as follows:
This is done in the order of SW ₂ , switch SW ₃ (switches SW ₃₀ to _{SW 34} are in the same order), and switches SW ₄ to _{SW 7.} In particular, the operation of switches SW ₄ to _{SW 7} is executed by interrupting switch SW ₃ . However, _the contents of switch SW ₃ are canceled by switches SW ₄ to _{SW 7 .}
Except for cancellation by SW ₇ .

Next, the full load due to the output from the control circuit CPU ₂ ,
That is, the operation timings of the motor M, electromagnetic brakes SL ₁ , SL ₂ , and electromagnetic clutch SL ₃ will be explained. FIG. 16 is an operation timing chart for all these loads, and in the figure, v is a period in which the light emitting element _L2 flashes, and t is a period in which the kneading operation or back straightening operation is performed. As is clear from the figure, when the motor M starts rotating, it is delayed by a time α from the time when the switch is operated for this purpose. Furthermore, the on operations of the electromagnetic brakes SL ₁ and SL ₂ and the electromagnetic clutch SL ₃ are also delayed by the time β, and furthermore, when one of the electromagnetic brakes SL ₁ and SL ₂ is turned from on to off and the other is turned from off to on, both of the electromagnetic brakes are turned on. In order to prevent both from turning on and overloading the motor M, a short time γ is provided during which both are turned off, and γ<α<β. The electromagnetic brakes SL 1 and SL 2 are activated to ensure that the motor M starts rotating smoothly in any direction, and that no overload is applied to the motor M, and that the electromagnetic brakes SL ₁ and SL ₂ turn on as soon as the direction of rotation changes. The inertial rotation of the motor M is rapidly stopped by continuing the connection with the load for a while. Furthermore, as mentioned above, when the entire load is turned off, even if the kneading wheel 4 reaches its travel limit due to the operation of the switches SW ₄ to _{SW 7} , the operation of the switches SW ₄ to _{SW 7} continues. When the full load is turned off, since the planetary device 5 is used, if the motor M is left with no load, the operation will be unstable, and there is a risk that the mechanical movement limit will be overrun by the inertial rotation of the motor M. Therefore, when this entire load is turned off, the electromagnetic brake SL ₁ , which connects the main shaft 1 to the motor M, which is a load that does not cause the risk of overrun, is turned on for a short time δ or kept on. This allows the inertial rotation of the motor M to be absorbed by the kneading operation. This time δ is 1
It only takes a short time of less than a second, and the power consumption to completely prevent overrun is extremely small.

As described above, in the present invention, a control means for restricting the variable width area is provided so that the variable width area is narrower in some areas within the movement range of the kneading wheel by the moving means than in other areas. Therefore, by making the wide part of the width variable area correspond to the shoulders and back, and the narrow part to the waist, it is possible to obtain a wide range of pine surge on the shoulders, and to massage unnecessary areas on the waist. Since the wheels do not move, there is no risk of your lower back being pinched by the wheels.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a chair incorporating an embodiment of the present invention in the backrest, Fig. 2 is a perspective view of the same chair with the back cover removed, and Fig. 3 is a cutaway rear view of one embodiment. FIG. 4 is a cutaway plan view of the same as above, FIG. 5 is a side view of the same as above, FIG. 6 is a cutaway plan view of the gearbox portion of same as above, FIG. b is an explanatory diagram of the detection position same as above,
FIG. 9 is a perspective view of the means for detecting the width between the kneading wheels, the first
Figures 0a and b are explanatory diagrams of the detection position as above, Figure 11 is a front view of the operating device, Figure 12 is an explanatory diagram showing the operating range of the kneading wheel and the operation of both detection means, and Figure 13 is an illustration of the human body. Explanatory diagram of the kneading wheel operating range above, 1st
Fig. 4 is a block circuit diagram of one embodiment, Fig. 15 is a specific circuit diagram, and Figs. 16 1 to 3 are operation time charts of the same as above. 1 is a main shaft, 4 is a kneading wheel, and CPU ₂
indicates a control circuit.

Claims (1)

[Scope of Claims] 1. A pair of kneading wheels attached to the main shaft and rotationally driven together with the main shaft by a motor, a moving means for moving the kneading wheels and the main shaft in a direction orthogonal to the axial direction of the main shaft, and a pair of kneading wheels that are attached to the main shaft and rotated by a motor together with the main shaft, A pine surge machine disposed in a backrest of a chair or a bed, the device having a width variable means for changing the width between the massaging wheels by moving in the axial direction of the machine, the width of the massaging wheels being adjusted by the width varying means. A pine surge machine characterized in that the width variable area is narrower in some areas within the movement range of the kneading wheel by the moving means than in other areas, comprising a control means for limiting the variable width area. 2. The width variable area limited by the control means includes a first area on both sides of the movement prohibited area in the center between the pair of kneading wheels and covering the entire movement range, and a first area on both sides of this first area and within the movement range. The pine surge machine according to claim 1, further comprising a second section within the first section.