JP5873723B2 - Massage machine - Google Patents

Description

  The present invention relates to a massage machine that can perform stretch treatment of a leg of a user using a leg support portion that tilts with respect to a seat portion on which the user is seated.

  A chair-type massage machine that performs a massage operation while supporting the body of the user is usually a massaging ball as a treatment element provided on the backrest, and itching or hitting the user leaning on the backrest In addition to this, there is a device provided with a leg support portion (ottoman) with a built-in treatment mechanism so that predetermined treatment can be performed on the leg portion of the user. .

  Furthermore, for the legs, in addition to the treatment such as itching and rolling, those that stretch the muscles of the legs have been put to practical use. An example of a massage machine that can perform such leg stretching treatment is disclosed in Japanese Patent Application Laid-Open No. 2008-92973.

JP 2008-92973 A

  A conventional massage machine capable of performing leg stretching treatment is configured as shown in the above-mentioned patent document, and has a mechanism for stretching the leg by tilting the leg support portion supporting the leg upward. At this time, since the legs are restrained by the air cell provided in the leg receiving part or the seat part, the distance between the front part of the leg receiving part and the upper surface of the seat part is reduced as the leg receiving part is tilted, and the seat part and A leg that does not correspond to the length of the leg on the leg receiving part and cannot move in the longitudinal direction due to the restraint by the leg receiving part, and the knee part adjusts the extra length and the knee part. There has been a problem that the extension of the leg is hindered from being separated from the upper end of the leg receiving part, or that an excessive force is applied to the knee and the influence on the knee is concerned.

  Stretching should be performed at an appropriate strength. When performing stretching treatment in a conventional massage machine such as that described in the above-mentioned patent document, the tilt angle of the leg support and the operating displacement of the actuator that drives the leg support are not affected. In general, a target value is appropriately set so that a predetermined treatment intensity can be obtained. However, the physique of people using massage machines varies, and when the strength of stretch treatment is associated with the tilt angle of the leg holder and the magnitude of the actuator displacement, if the strength is set according to the person with a long leg, For those who have a short leg, the same strength setting as that for a long person is applied and the leg holder tilts greatly, even though the tilt angle of the leg holder corresponding to a certain treatment intensity is excessive. There is a risk that a person may hurt a leg because the strength of stretching treatment is too strong.

  On the other hand, when the strength is set according to the person with short legs, the same strength setting as that of the short person is used for those with long legs, although the tilt angle of the leg support corresponding to a certain treatment intensity is too small. When the leg support part is tilted to a small extent, the tilting angle to the extent that stretch treatment can be achieved cannot be obtained for people with long legs, and the treatment strength can not be effectively adjusted. The method of associating with the magnitude of the displacement of the treatment execution part has a problem that it cannot cope with the change in the expression state of the actual treatment intensity due to the length of the user's leg, that is, the difference in physique.

  The present invention has been made to solve the above-mentioned problems, and by appropriately operating the leg support portion that supports the leg, it is possible to appropriately perform the stretching treatment without imposing an extra burden on the leg. An object of the present invention is to provide a massage machine that enables leg stretching.

  The massage machine according to the present invention includes a seat part and a backrest part, and a massage machine in which a leg support part for supporting a leg is disposed on the front side of the seat part, wherein the leg support part is the front end part of the seat part. A base part that is tiltably attached to the base part, a leg support part that is movable with respect to the base part in the longitudinal direction of the leg, a leg support part that contacts the leg, and a leg support part that is integrated with the leg support part, and at least a calf portion of the leg And a first actuator for adjusting the longitudinal position of the leg by moving the leg receiving part relative to the base part. A second actuator that tilts the leg support portion and changes an inclination angle of the leg support portion with respect to the seat portion, and is used as a stretch treatment to the leg back portion from the knee of the user's leg by the clamping means. The lower part was held and fixed on the leg holder In state, causes upward tilt the leg support in the second actuator, the leg receiving portion in the first actuator is to move in a direction away from each seat leg.

  As described above, according to the present invention, the leg support portion that supports the leg so as to be tiltable on the front side of the seat portion is a combined structure of the base portion attached to the seat portion and the leg receiving portion movable relative thereto, When the leg support part is tilted upward as a stretch treatment, the leg is sandwiched in advance and held and fixed on the leg support part, and the leg support part is moved away from the seat as the tilting progresses. By moving little by little in the direction, the leg support part can be tilted upward without lifting the leg from the leg support part or the seat part, and the leg can be extended efficiently, without placing a burden on the knee. A state in which muscle stretching is performed can be obtained, treatment for stretching the leg can be performed smoothly and appropriately, and an excellent treatment effect can be imparted to the user.

  Moreover, the massage machine according to the present invention has a seat adjustment means for moving the position of the front part of the seat up and down as necessary, and during the stretch treatment to the back of the leg, The position of the front part of the seating surface of the seat part is raised in synchronism with tilting the leg support part upward by the second actuator.

  As described above, according to the present invention, when the leg is stretched, the seat front part of the seat is raised and the lower back side part of the thigh extending with the tilting of the leg support is pressed. Then, by moving the leg knee to the upper side, a load is further applied to the side where the muscles on the back of the leg extend to the leg, and the stretch effect on the back of the leg is further improved.

  Also, in the massage machine according to the present invention, if necessary, an air cell in which a plurality of the pin support means of the leg support portion are arranged so as to sandwich the leg, and expands and contracts by supplying and discharging air by a predetermined air supply / exhaust means It also serves as a massage treatment mechanism for the legs, and during the stretch treatment to the back of the legs, the clamping means expands by air supply and presses the calf portions of the user's legs from both sides. It is something to pinch.

  As described above, according to the present invention, the air cell as a treatment mechanism for massaging the leg is used as a holding means during stretching treatment by the upward tilting of the leg support part, and while the leg support part tilts upward, the air cell By expanding and pinching the legs and holding and fixing the legs to the leg holder, the air cell can be used effectively for both leg massage and stretching, and the legs are supported when the leg support is tilted. The mechanism of the leg support portion can be simplified while ensuring a state in which the stretch effect is enhanced by securely holding and fixing on the portion.

  In addition, the massage machine according to the present invention has a mechanism in which the second actuator is arranged below the seat portion and expands and contracts within a predetermined range to change the length as necessary. While the position of the part is fixed, the other end can be brought into contact with the back side of the leg support, and the leg support is tilted in accordance with a change in the position of the other end due to expansion and contraction. Has a position adjustment means for vertically moving the tilt center position of the base portion of the leg support portion at the front end portion, and raises the tilt center position of the base portion during stretch treatment to the leg back portion. It is.

  As described above, according to the present invention, when the leg is stretched, the tilting center position of the leg support portion at the front end of the seat portion is raised, and the knee back side portion of the leg is moved along with the tilt of the leg support portion. In the stretched state, by further moving the knee of the leg supported by the leg support part upward, the load on the side where the muscles of the sole of the leg are stretched is further applied to the leg, and the stretch effect to the sole of the leg is achieved. Further improve.

  In addition, the massage machine according to the present invention is provided with a control unit that controls the operating state of each actuator at least during stretching treatment to the back of the leg as necessary, and the control unit stretches to the back of the leg. Correspondence between a change in load applied to the first actuator according to the treatment intensity of the stretch and a change in a predetermined physical quantity related to the operation of the first actuator in the movement of the leg receiving part away from the seat part in the treatment When the physical quantity reaches the standard value by grasping the relationship in advance, setting the standard value of the physical quantity corresponding to the treatment intensity as a predetermined standard, acquiring the physical quantity during the operation of the first actuator In addition, control for sending a control command to a predetermined control target is executed.

  As described above, according to the present invention, the treatment intensity in the stretch treatment corresponds to the load of the first actuator that moves the leg support portion, and changes according to the change in the load of the first actuator. The first actuator that uses the presence of a predetermined physical quantity related to the operation of the control unit to associate the change in the physical quantity with the treatment intensity in the control unit and correspond one-to-one with the treatment intensity of the preset stretch. The value of the physical quantity related to the operation of is set as a reference value, the physical quantity acquired by the control unit is compared with the reference value while the first actuator is operated, and when the acquired physical quantity reaches the reference value, Alternatively, a plurality of control objects, for example, the first actuator or the second actuator, the clamping means, the seat adjustment means, the position adjustment means, etc. are predetermined from the control section. By sending the control command, the control unit can grasp the treatment intensity from the change of the physical quantity according to the load change of the first actuator, and can appropriately control the control target while responding to the change of the treatment intensity. When the control target is the second actuator, the leg support portion can be tilted by operating the second actuator so as to match the set treatment strength, so that stretching with appropriate treatment strength is always possible. .

  In addition, the massage machine according to the present invention is provided with a control unit that controls the operating state of each actuator at least during stretching treatment to the back of the leg as necessary, and the control unit stretches to the back of the leg. Correspondence relationship between change in load applied to first actuator according to stretch treatment intensity and change in predetermined physical quantity related to operation of first actuator in movement of leg support part away from seat part in treatment When the physical quantity reaches the reference value when the physical quantity is obtained during the operation of the first actuator, the reference value of the physical quantity corresponding to the treatment intensity as a predetermined guide is set. The control command according to the state of the first actuator and / or the leg support is sent to a predetermined control target.

  As described above, according to the present invention, the treatment intensity in the stretch treatment corresponds to the load of the first actuator that moves the leg support portion, and changes according to the change in the load of the first actuator. The first actuator that uses the presence of a predetermined physical quantity related to the operation of the control unit to associate the change in the physical quantity with the treatment intensity in the control unit and correspond one-to-one with the treatment intensity of the preset stretch. The value of the physical quantity related to the operation of is set as a reference value, the physical quantity acquired by the control unit is compared with the reference value while the first actuator is operated, and when the acquired physical quantity reaches the reference value, Or the physical quantity is a reference value for a plurality of control objects, for example, the first actuator or the second actuator, the clamping means, the seat adjustment means, the position adjustment means, etc. By sending a control command from the control unit according to the state of the first actuator and / or the leg support when it reaches the control unit, the control unit detects the treatment intensity from the change in physical quantity according to the load change of the first actuator. The control object can be appropriately controlled in accordance with the state of the first actuator and / or the leg receiving portion changed with the operation of the first actuator, while responding to the change in the treatment intensity. In the case of two actuators, each mechanism can always be operated such that the leg actuator can be tilted by operating the second actuator so as to match the extension state of the first actuator when the physical quantity reaches the reference value. Smooth stretch treatment can be performed without undue coordination.

  In the massage machine according to the present invention, if necessary, the control unit sets a treatment intensity for the stretch treatment to the back of the leg so that the user can select a plurality of levels in advance. As a treatment intensity based on what is selected by the user, a reference value of the physical quantity corresponding to the intensity is set.

  As described above, according to the present invention, the treatment intensity of the stretch is set in a plurality of stages, and a control command is sent according to the guideline value, using the physical quantity corresponding to the treatment intensity selected by the user as a guideline value. When the physical quantity that is acquired from time to time is reached as a guideline physical quantity corresponding to the treatment intensity, the control unit performs, for example, the operation of the control target. It is realized by the operation control corresponding to the strength such as stopping the treatment, and the stretch treatment appropriately corresponding to the condition of the user can be performed.

  In addition, in the massage machine according to the present invention, if necessary, the control unit sets in advance a plurality of levels of treatment intensity in the stretch treatment to the back of the leg so that the user can select the intensity of the multiple levels of strength. A target treatment intensity selected from among the users is set as a target treatment intensity, and when the physical quantity reaches the reference value, a control command for operating the control target so as to realize the target treatment intensity is transmitted.

  As described above, according to the present invention, the treatment intensity of the stretch is set in a plurality of stages, and the control instruction for controlling the operation of the control target with the treatment intensity selected by the user as a target is sent out. When the physical quantity acquired by the control unit reaches the target value at any time, the operation of the controlled object is stopped at the timing when the target treatment intensity is obtained. Thus, it is possible to execute a stretch treatment appropriately corresponding to the intention of the user.

  The massage machine according to the present invention further includes a displacement detection means for detecting the displacement of the movable part of the first actuator or the movement displacement of the leg receiving unit based on a signal output for each predetermined unit amount of displacement as necessary. And the control unit obtains the operating speed of the first actuator or the speed of movement of the leg support obtained by the speed calculation from the displacement and the detection interval of the displacement obtained from the displacement detection means, as the physical quantity. It is something to handle as.

  As described above, according to the present invention, as the physical quantity related to the operation of the first actuator, the operation speed of the first actuator or the speed of movement of the leg receiving unit is acquired by the control unit, and such speed is acquired by the first actuator or leg. By obtaining using the displacement detection interval in the displacement detection means of the receiving portion, it is possible to appropriately obtain the speed value indicating the change corresponding to the load change of the first actuator without using a dedicated sensor, While simplifying the system configuration related to sending control commands when the physical quantity reaches the reference value, for example, when the speed acquired at any time falls to the reference speed corresponding to the set treatment intensity, Stretching can be appropriately executed for any user by executing control command transmission such as stopping the second actuator.

1 is a perspective view of a massage machine according to a first embodiment of the present invention. It is a block diagram of the massage machine concerning a 1st embodiment of the present invention. It is a rear view of the mechanical unit in the massage machine concerning a 1st embodiment of the present invention. It is a left view of the mechanical unit in the massage machine which concerns on the 1st Embodiment of this invention. It is tilt start state explanatory drawing of the leg support part in the massage machine which concerns on the 1st Embodiment of this invention. It is tilt state explanatory drawing of the leg support part in the massage machine which concerns on the 1st Embodiment of this invention. It is a flowchart of the leg back stretch treatment in the massage machine which concerns on the 1st Embodiment of this invention. It is pinch state explanatory drawing of the leg thigh and the calf part in the massage machine concerning a 1st embodiment of the present invention. It is operation | movement timing explanatory drawing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 1st Embodiment of this invention. It is explanatory drawing of the 1st example of the other operation timing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 1st Embodiment of this invention, and a 2nd example. It is explanatory drawing of the 3rd example of the other operation timing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 1st Embodiment of this invention, and a 4th example. It is explanatory drawing of the 5th example of the other operation timing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 1st Embodiment of this invention, and a 6th example. It is a seat part front-end | tip part air cell expansion state explanatory drawing in the massage machine which concerns on the 1st Embodiment of this invention. It is movement state explanatory drawing of the leg support part tilting central axis in the massage machine which concerns on the 1st Embodiment of this invention. It is operation | movement timing explanatory drawing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 2nd Embodiment of this invention. It is a flowchart of the leg back stretch treatment in the massage machine which concerns on the 2nd Embodiment of this invention. It is operation | movement timing explanatory drawing of each mechanism part at the time of the leg back stretch treatment of the massage machine which concerns on the 3rd Embodiment of this invention. It is pulse signal output example explanatory drawing from the encoder in the massage machine concerning the 4th Embodiment of this invention. It is a flowchart of intensity | strength adjustment at the time of massage treatment in the massage machine which concerns on the 4th Embodiment of this invention. It is tilting explanatory drawing of the kneading ball and the drive mechanism part at the time of the kneading treatment in the massage machine which concerns on the 4th Embodiment of this invention. It is a flowchart of intensity | strength adjustment at the time of massage treatment in the massage machine which concerns on the 5th Embodiment of this invention.

(First embodiment of the present invention)
Hereinafter, a massage machine according to a first embodiment of the present invention will be described with reference to FIGS.
In each of the drawings, the massage machine 1 according to the present embodiment is a chair-like body that supports a seated user, and in detail, is a base that is placed on the floor and stably supports the entire chair. Part 11, a seat part 12 that supports the user's buttocks above the base part 11, a backrest part 13 that supports the user's back on the back side of the seat part 12, and both left and right sides of the seat part 12 The armrest 14 that supports the elbow and forearm of the user, the leg support 15 that supports the leg of the user on the front side of the seat 12, and the remote controller 30 that receives various operation inputs related to the massage operation. And a control unit 40 that controls the massage operation by the plurality of treatment mechanisms based on the contents of operation input, recorded information, and the like.

The base 11 is configured to integrally support the seat 12, the backrest 13, the armrest 14, and the leg support 15 that constitute each part of the chair. The seat portion 12 is attached to the base portion 11 so that the inclination angle of the seat surface can be adjusted, and massage is performed by a built-in treatment mechanism while supporting the user's buttocks and thighs on the seat surface. As the treatment mechanism, the heel part air cell 71 and the thigh part air cell 72 that operate by supplying and discharging air are provided. An air pump 70 that operates these air cells by supplying and discharging air is disposed in a space below the seat portion 12.
In addition to the massage function, the buttocks air cell 71 and the thigh air cell 72 have functions of raising and lowering the body of the user and as a cushion.

  The backrest portion 13 has a surface shape that matches the shape of the human back and is arranged so that the inclination angle can be adjusted with respect to the base portion 11 and the seat portion 12, and a treatment mechanism for performing massage is provided therein. It is the composition provided.

  Inside the backrest 13, a mechanical unit 50 in which a pair of left and right kneading balls 51 as a treatment element and a drive mechanism 60 for operating the same are integrated, and the mechanical unit 50 can be moved in the vertical direction of the backrest 13. In addition, a pair of left and right guide rails 20 that restrains and supports movement in the other direction, a back air cell 73 and a waist air cell 74 that operate by supplying and discharging air by the air pump 70, and the shape of the backrest portion 13 are formed from the inside. A frame-like frame 17 to be maintained is arranged. Of these, the mechanical unit 50, the back air cell 73, and the waist air cell 74 each constitute a treatment mechanism for performing massage.

  In addition, a pair of side wall portions provided with a treatment mechanism such as an air cell on the inner surface facing the user is provided on both the left and right sides of the backrest portion 13 so as to protrude from the upper arm of the user. You can also make it possible to massage from the side.

  The mechanical unit 50 includes a pair of left and right rubbing balls 51 as a treatment element that gives a user a stimulus such as rubbing and hitting, and a pair of left and right rubbing ball support arms 52 that respectively support the rubbing balls 51 in a protruding state. The drive mechanism 60 that drives the massage balls 51 in response to massage operations such as hitting and the like, and the axis of the backrest that is perpendicular to the vertical direction is tilted about the drive mechanism 60. It is the structure provided with the base part 54 supported so that it is possible.

  The drive mechanism 60 is disposed integrally with the housing 61 that is supported so as to be tiltable with respect to the base 54, and causes the kneading balls 51 to perform a kneading operation based on the control of the control unit 40. A kneading motor 62 for generating a driving force of the same, and a tapping motor 64 that is disposed integrally with the housing 61 and that generates a driving force for causing the kneading balls 51 to perform a tapping operation based on the control of the control unit 40; Used in a known massage machine, which is built in the housing 61 and includes a kneading mechanism and a striking mechanism (not shown) that transmit motion from each motor to the kneading balls 51 via the kneading ball support arms 52. It is the same mechanism.

  The stagnation mechanism causes the stagnation ball support arm 52 to continuously sway due to the rotation of the stagnation motor 62 based on the control of the control unit 40. The kneading ball 51 attached to one end of the kneading ball support arm 52 swings up and down, left and right and back and forth while drawing a continuous trajectory along with the movement of the kneading ball support arm 52, and thereby itching as a treatment operation. Can be realized.

  The displacement of the swirling ball 51 swinging relative to the user during the kneading treatment is the rotation angle of the drive shaft (not shown) that drives the kneading ball support arm 52 by the kneading mechanism 62 as a result of the rotation operation of the kneading motor 62. Since it corresponds to the displacement on a one-to-one basis, the displacement of the drive shaft is detected by using the encoder 65 as the displacement detection means, so that the control unit 40 swings the kneading balls 51, that is, changes in the kneading ball position. Can be grasped. The encoder 65 is built in the housing 61 of the drive mechanism 60, and is composed of a combination of a sensor unit fixed to the housing 61 side and a scale unit attached to the drive shaft side, and the scale unit moves with the drive shaft in the sensor unit. This is a known rotary encoder that detects the rotation angle displacement of the motor, and outputs a signal related to the displacement of the drive shaft to the control unit 40.

  The hitting mechanism swings the kneading ball support arm 52 around a predetermined position by the rotation of the hitting motor 64, and the kneading ball 51 at one end of the arm also moves back and forth by the swinging of the kneading ball support arm 52. It is a mechanism that swings (reciprocates) and realizes a hit as a treatment operation.

  The base portion 54 supports the drive mechanism portion 60 so as to be tiltable. In addition, based on the control of the control portion 40, a lift motor 57 that generates a drive force for lifting the mechanical unit, and a drive mechanism portion. And an advancing / retracting motor 58 for generating a driving force for tilting 60.

  The advance / retreat motor 58 rotates the interlocking small gear 58a based on the control of the control unit 40, and moves the tooth portion 67 on the drive mechanism unit 60 side meshing with the small gear 58a, thereby driving the drive mechanism unit. 60 is tilted with respect to the base portion 54, whereby the kneading balls 51 are moved forward and backward with respect to the user, and the amount of the kneading balls 51 protruding toward the user is adjusted.

  The displacement of the kneading balls 51 in the advancing / retreating direction with respect to the user corresponds one-to-one with the angular displacement related to the tilting of the driving mechanism unit 60 as a result of the rotation operation of the advancing / retreating motor 58. By detecting the angular displacement using the encoder 55 as a displacement detecting means, the controller 40 can grasp the forward / backward state of the kneading balls 51, that is, the change in the protrusion amount, together with the tilting state change of the drive mechanism unit 60. . The encoder 55 is configured by a combination of a sensor unit 55a fixed to the base unit 54 and a scale unit 55b attached to the housing 61 of the drive mechanism unit 60. The encoder unit 55a includes a scale unit 55b that moves together with the drive mechanism unit 60 at the sensor unit 55a. This is a kind of rotary encoder that detects tilt displacement, and outputs a signal related to the angular displacement of the drive mechanism section 60 to the control section 40.

  The mechanical unit 50 is placed between the guide rails 20 by supporting the side end portions of the base portion 54 so as to be able to run up and down by the pair of guide rails 20, and the mechanical unit 50 as a whole follows the guide rails 20. This configuration is movable. Then, based on the control by the control unit 40, the lifting motor 57 is actuated so that the base unit 54 travels along the guide frame 20, so that the entire mechanical unit 50 including the base unit 54 extends along the guide frame 20. This is a mechanism that moves up and down the backrest part 13 so that the position of the kneading balls 51 in the backrest part 13 (the treatment target site by the kneading balls) can be changed up and down.

  The mechanical unit 50 moves up and down the backrest 13 as described above under the control of the control unit 40 in accordance with the set massage content, and adjusts the vertical position of the kneading balls 51 and advances and retreats. The amount of protrusion of the kneading balls 51 toward the user is adjusted by the tilting of the kneading balls 51 and the drive mechanism 60 by the operation of the motor 58, and the kneading balls 51 are positioned at the massage target location. After the movement of the kneading balls 51 or in parallel with the movement of the kneading balls 51, the control unit 40 activates the motor for kneading and hitting the drive mechanism 60 in the mechanical unit 50 according to the type of massage. The movement corresponding to massage such as itchiness and hitting set in the kneading balls 51 is performed.

  The armrest part 14 is located on both sides of the seat part 12 and is integrally connected to the base part 11. Even if the backrest part 13 changes the reclining angle or the seat part 12 tilts, the forearm of the user It is the structure formed so that it may be supported stably. The armrest portion 14 may also be configured such that an air cell that operates by supplying and discharging air by the air pump 70 can be provided to massage the forearm portion of the user.

  The leg support portion 15 is positioned on the front side of the seat portion 12 and is disposed so as to be tiltable around the vicinity of the front end of the seat portion 12. The tilt angle is adjusted by a second actuator 19 below the seat portion. Specifically, the leg support portion 15 is provided with a base portion 15a that is attached to the seat portion 12 so as to be tiltable, and is disposed on the surface side portion of the base portion 15a so as to be movable in the leg longitudinal direction. And a leg air cell 75, 76, 77, 78 as a treatment mechanism built in the leg receiving part 15 b and inflating and contracting by supplying and discharging air by the air pump 70.

  The second actuator 19 has a mechanism for moving the movable part linearly with respect to the fixed part so as to expand and contract within a predetermined range as a whole, and to change the length. While the position is fixed, the other end can be brought into contact with the back side of the leg support 15 and the leg support is tilted in accordance with a change in the position of the other end due to expansion and contraction. A linear encoder as a displacement detecting means is provided integrally with the second actuator 19 for detecting the displacement of the movable portion of the second actuator 19, that is, the displacement of the expansion and contraction based on the signal output for each predetermined unit amount of displacement. Is done.

  The position of the other end of the second actuator 19 that contacts the back side of the leg support 15 is changed by the expansion / contraction operation of the second actuator 19, so that the leg support 15 is centered on the shaft at the front end of the seat 12. It is a mechanism that tilts and changes the tilt angle. Since the displacement associated with the tilting of the leg support portion 15 has a one-to-one correspondence with the displacement due to the expansion / contraction of the second actuator 19, the expansion / contraction displacement of the second actuator 19 is detected using a linear encoder as a displacement detection means. Thus, the control unit 40 can grasp the change in the tilting state of the leg support 15 together with the change in the expansion / contraction state of the second actuator 19. In grasping the tilting state of the leg support portion 15, the change in the tilt angle of the leg support portion may be directly acquired by a displacement detection means such as a rotary encoder.

The leg receiving part 15b of the leg support part 15 is formed in a substantially semi-cylindrical shape in which a concave part into which a user's leg enters is formed, and in the leg longitudinal direction with respect to the base part 15a attached to the front end of the seat part 12. It is the structure arrange | positioned so that a movement is possible. The leg air cells 75, 76, 77, 78 on the side surfaces facing each other across the concave portion of the leg receiving portion 15 b can be massaged by pressing the calf portions of the left and right legs in an expanded state. They are built in as a paired arrangement.
In addition to the leg air cells 75, 76, 77, 78, other treatment mechanisms such as rollers that press the legs while moving in the leg longitudinal direction may be disposed on the leg support portion 15.

  The user supports the left and right legs around the calf portion by the left and right leg receiving portions 15b. In this supported state, when the leg air cells 75, 76, 77, 78 facing each other with the legs sandwiched between the left and right are inflated, the calf portions of the legs can be pressed and held from both sides.

  That is, the leg air cells 75, 76, 77, and 78 hold the legs by using the pressing force in the expanded state in addition to the direct massage function due to the expansion and contraction due to the air intake / exhaust, and unexpected movement of the legs It also has a function as a clamping means for suppressing the above. In addition to the means for utilizing the expansion and contraction of the air cell, the means for clamping may be a mechanism that mechanically moves the pressing piece to clamp the leg, and is not limited to the air cell.

  In addition, the leg is not necessarily configured to operate the leg air cell or the like from both sides of the leg to clamp the leg, and the leg is pressed only from one of the left and right side walls of the leg receiving portion facing each other across the leg. The sandwiching state may be obtained by pressing the leg against the side wall on the opposite side of the leg receiving portion.

  With the leg air cells 75, 76, 77, 78 holding the legs of the user and holding and fixing the legs on the leg support 15, the second actuator 19 is extended and the leg support 15 is directed upward When the leg receiving portion 15b in the leg support portion 15 is moved in the direction away from the seat portion 12 with respect to the base portion 15a, a stretch effect due to elongation can be imparted to the back side portion (leg back portion) of the leg. That is, the leg support 15 is used to perform stretch treatment on the leg back. In addition, the leg back part here refers to part or all of the back of the thigh, the calf, and the back of the knee.

  In tilting the leg support portion 15, not only the leg is restrained on the leg support portion 15 but also the position of the leg receiving portion 15 b holding the leg is moved appropriately in a direction away from the seat portion to bend the leg. By adjusting the condition, the knee lift can be reliably suppressed without applying excessive force to the knee, and the leg stretching effect can be further enhanced.

  Thus, as a mechanism for moving the leg receiving portion 15b of the leg supporting portion 15 in the longitudinal direction of the leg with respect to the base portion 15a, the displacement detecting means 15d for detecting a change in position of the leg receiving portion 15b relative to the base portion 15a is used together with a predetermined mechanism. The first actuator 18 is used, and the operation of the first actuator 18 is controlled by the control unit 40. The first actuator 18 is a known actuator such as a motor or a fluid pressure cylinder, and the displacement detection means 15d is a known linear encoder or the like, and will not be described in detail.

  In order to grasp the movement state of the leg receiving portion 15b, in addition to directly acquiring the position change of the leg receiving portion 15b by the displacement detecting means 15d, the displacement of the movable portion of the first actuator 18 is provided integrally therewith. Alternatively, it may be acquired by a displacement detection means such as a linear encoder. That is, the leg receiving portion 15b is a mechanism that moves with respect to the seat portion 12 by changing the position with respect to the base portion 15a of the leg supporting portion 15 by the operation of the first actuator 18, and the leg receiving portion 15b Since the displacement associated with the movement corresponds to the expansion / contraction displacement caused by the operation of the first actuator 18, the first displacement is detected by the control unit 40 by detecting the displacement of the first actuator 18 using an integral displacement detection means. Along with a change in the state of the actuator 18, a change in the movement state of the leg receiving portion 15b can be grasped.

Further, when the leg support portion 15 is tilted upward, another sandwiching air cell 79 for sandwiching the thigh of the leg may be disposed on both sides of the seat portion 12 (see FIG. 8). In this case, in the state where the thighs are clamped by the clamping air cells 79 on both sides of the seat part 12, the leg support 15 is tilted upward to extend the legs, whereby the thighs clamped by the air cells 79 Can be prevented from floating from the seating surface of the seat portion 12, and the leg can be stretched further by the tilting of the leg support portion 15, so that the stretch effect of the back of the leg can be further enhanced.
On the other hand, the leg support portion 15 can be tilted downward from above while the leg is held by the leg air cell, and in this case, the stretch effect by stretching is given to the other part of the leg.

  The remote controller 30 includes a large number of switches and display units for receiving various operation inputs to the massage machine, is detachably installed on the stand 16 on the side of the massage machine 1, and transmits operation inputs related to massage to the control unit 40. Is. Note that the position of the stand 16 can be adjusted so that the position of the switch and the display unit of the remote controller 30 is the optimum position for the user.

  The control unit 40 adjusts the other movable parts of the treatment mechanism and the massage machine to a state corresponding to the user based on the detection result obtained by detecting the positions of the body parts of the user in advance. At the same time, control for performing appropriate treatment is performed on the treatment mechanism and other movable parts based on the remote control operation, the treatment contents recorded and set in advance, and the information on the detection result.

  The control unit 40 is a computer including a CPU, a memory, an input / output interface, and the like as its hardware configuration, and is a mechanism that causes the computer to operate as the control unit 40 by a program stored in the memory or the like. The computer constituting the control unit 40 may be a microcomputer in which a CPU, a memory, a ROM, and the like are integrally formed.

  The computer unit constituting the control unit 40 is disposed in a predetermined space inside the massage machine 1 such as directly under the seat 12 and is in a state where it can communicate with the remote controller 30, and various motors of the mechanical unit 50, The actuator for tilting the backrest 13 and the leg support 15, the air pump 70, and the air supply / exhaust control mechanism are electrically connected to each other, and the position of each part of the body of the user is detected based on a preset position detection program. The operation of these drive mechanisms is controlled by the control signal output and by the control signal output based on the set massage data at the time of massage execution.

  In addition, the control unit 40 is also electrically connected to signal output means such as an encoder that outputs the displacement amount of the mechanical unit 50 and each actuator, and the state of the mechanical unit 50, the backrest portion 13 and the leg support portion 15 are also connected. The operation control of the driving means such as the motor and the actuator is performed while grasping the state such as the inclination of the motor.

  In particular, in controlling the operation state of the second actuator 19 that tilts the leg support 15, the controller 40 moves the leg support 15 b in synchronization with the tilt of the leg support 15 as a stretch treatment to the leg back. , The correspondence between the change in the load applied to the first actuator 18 in accordance with the stretch treatment intensity and the change in the predetermined physical quantity related to the operation of the first actuator 18 is grasped in advance, and the treatment is used as a guide for control. A reference value of the physical quantity corresponding to the strength is set, the physical quantity is acquired during the operation of the first actuator 18, and when the physical quantity reaches the reference value, the second actuator 19 is deactivated or operated. A control command that causes a change from the previous operating state such as a decrease is sent out.

  In the stretch treatment, it is known that an increase change in treatment intensity based on the movement of the leg support portion 15b and a decrease change in the movement speed of the leg support portion 15b show a strong relationship. If the situation is used for the operation control of each treatment mechanism, the actual treatment intensity at a predetermined time point can be accurately grasped, and the operation control according to the treatment intensity can be expected. For this reason, the first actuator 18 is used as a mechanism for causing the movement of the leg receiving portion 15b, and a physical quantity related to the operation of the first actuator 18 is used as a guide for control.

  The predetermined physical quantity related to the operation of the first actuator 18 is that of the leg receiving portion 15b obtained by calculating the speed from the displacement of the leg receiving portion 15b and the detection interval of the displacement obtained from the displacement detecting means 15d. The speed of movement is used.

  And the control part 40 can select the treatment intensity | strength in the stretch treatment to a leg back part to the user of a massage machine, specifically a to-be-treated person, in multiple steps, for example, three steps of strong, medium, and weak Therefore, the treatment intensity based on the strength selected by the user from the multiple levels of strength is used as a guide value of the physical quantity corresponding to the guide strength, and in this embodiment, the movement of the leg support 15b. A reference value for the speed is set.

  Thus, the signal output of the displacement detecting means 15d indicating the displacement of the leg receiving portion 15b due to the operation of the first actuator 18 is used by the control portion 40 for grasping the positional relationship of the leg receiving portion 15b with respect to the seat portion 12, By calculating the speed of movement of the leg receiving portion 15b using the displacement of the receiving portion 15b and the detection interval of this displacement, the load on the first actuator 18 becomes higher in the stretch treatment when the treatment strength is actually high, etc. A state in which the moving speed of the receiving portion 15b, that is, the operating speed of the first actuator 18 is reduced can be detected. For example, if the second actuator 19 is controlled on the basis of such a speed, the second actuator 19 can be operated with reference to a state where the set treatment intensity is actually obtained, and based on the displacement itself such as the tilt angle. As in the case of control, there is no variation in the treatment intensity due to the difference in the limit tilt angle that accompanies the difference in leg length for each individual.

  In addition to this, the control unit 40 controls the mechanical unit 50 to detect the position of each part of the body of the user prior to the massage, as in a known massage machine, and the mechanical unit 50 is moved from the initial position of the backrest 13 to the guide rail 20. In the process of moving the kneading balls 51 along the user, a change in pressure with respect to the kneading balls 51 from the user leaning against the backrest 13 and a change in the inclination of the kneading balls 51 are sequentially acquired. Based on this information, the shoulder position, spine line, and waist position of the user can also be detected.

  Next, the leg back stretch treatment process of the user in the massage machine according to the present embodiment will be described (see FIG. 7). As a premise, the massage machine 1 is turned on when the user is seated on the massage machine 1 and the back is leaned against the backrest 13, the massage machine 1 is activated, and the weight of the user Preparation operations before starting massage such as body shape detection, reclining angle adjustment of the backrest 13 and the like are completed, and an operation state instruction such as a massage course is input by the user, and various massage operations are executed. In particular, it is assumed that the control unit 40 is about to perform a stretch treatment on the leg.

  Then, the control unit 40 operates the second actuator 19 in the contracting direction when the leg support unit 15 is not in the lowest position as its initial position before starting the operation control of each unit related to the stretch treatment. The leg support 15 is tilted to the initial position. At the same time, when the leg support 15b of the leg support is not closest to the seat, the first actuator 18 is operated to move the leg support 15b closer to the seat 12. .

  When starting the operation of each mechanism portion of the leg support 15 at the initial position in the stretch treatment, the control unit 40 first sets a plurality of treatment strengths of the preset stretch, for example, strong, medium, weak Of the three treatment intensities, the treatment instructed by the user prior to treatment or the treatment intensity selected and set as part of the massage course is read, and the leg that is recorded in association with this treatment intensity in advance. The value of the moving speed of the receiving unit 15b is registered as a control guide value (step S001).

  Thereafter, the control unit 40 causes the leg support unit 15 to supply air to each leg air cell located on both sides of the leg to inflate the air cell (step S002) (see FIGS. 5B and 8). . As the leg air cell expands, the calf portion of the leg is clamped from both sides by the air cell and is restrained by the leg receiving portion 15b.

  In a state where the leg air cell is sufficiently expanded and the calf portion is sandwiched and restrained, the control unit 40 extends the second actuator 19 with respect to the leg support unit 15 at the lowermost initial position, and the second actuator 19 19 At one end, the back side of the leg support 15 is pushed to tilt the leg support 15 upward (step S003).

  In addition, when another air cell is provided on both sides of the seat portion 12 to hold the leg thigh, the control unit 40 starts before or after the leg actuator 15 tilts by the second actuator 19 or starts tilting. At the same time, air is supplied to the air cell 79 for holding the thigh, and the air cell 79 is inflated to hold the thigh (see FIG. 8).

  After the tilting of the leg support 15 by the second actuator 19 is started and the end of the leg support 15 is separated from the floor to some extent, the control unit 40 operates the first actuator 18 of the leg support 15 to move the leg support 15. The 15 leg receiving portions 15b are moved little by little toward the leg tip side which is the side away from the seat portion 12 with respect to the base portion 15a (step S004) (see FIG. 6A).

  Thus, if the leg receiving portion 15b does not move relative to the base portion 15a, the distance between the front surface portion of the leg support portion 15 and the upper surface of the seat portion 12 decreases as the leg support portion 15 tilts, and the seat portion 12 and the leg support portion 15 is a leg that does not correspond to the leg length on the leg 15 and cannot move in the longitudinal direction due to the restraint by the leg support 15, and the knee part of the leg 12 adjusts the extra length and The leg receiving part 15b is moved to the leg tip side in a state where the extension of the back of the leg is hindered away from the upper end part of the leg support part 15 or a load (unreasonable force) is applied to the knee. In this state, the leg support 15 can be continuously tilted upward with the legs attached to the seat 12 or the leg support 15 and the back of the leg is properly stretched (see FIG. 6). ).

The movement of the leg receiving portion 15b toward the distal end side of the leg corresponds to the tilted state of the leg supporting portion 15 and the moving amount is such that the foot of the user and the end of the leg supporting portion 15 do not contact the floor surface. It is executed while adjusting.
On the other hand, the control unit 40 receives the output of the displacement detection unit 15d as the movement of the leg receiving unit 15b starts, grasps the movement displacement of the leg receiving unit 15b, and obtains the displacement of the leg receiving unit 15b from the displacement detection unit 15d. The speed of movement of the leg receiving portion 15b is continuously calculated from the displacement and the detection interval of this displacement, and is acquired as information on the standard of operation control of the second actuator 19 (step S005).

  Under the control of the control unit 40, the second actuator 19 is extended, the leg support unit 15 is tilted upward, and the leg below the knee is lifted by the leg air cell. The calf part is restrained and the leg receiving part 15b is moved to the tip side of the leg so that the leg is kept in contact with the seat part and the leg support part, so that the leg can move forward while taking an appropriate posture. As a result, the leg is subjected to a load such as stretching exercise, and the leg sole, in particular, the region extending from the back of the thigh to the back of the knee is stretched.

  When the leg support portion 15 is tilted, the operation of raising the backrest portion 13 can be interlocked as necessary, and the backrest portion 13 is raised to force the user to raise his / her upper body. Further, a load in the direction in which the soles extend is further applied, and the stretch effect to the soles is further improved.

  Thereafter, as the tilting of the leg support 15 proceeds, the front side of the leg support 15 reaches the height of the seat 12, and the tilt angle of the leg support 15 approaches the limit of the movable range of the legs of the user ( 6B), the lower part from the knee of the user's leg becomes difficult to move with respect to the seat part 12, and resistance is applied in the movement of the leg receiving part 15b away from the seat part 12. . Along with this, the load on the first actuator 18 that moves the leg receiving portion 15b increases rapidly, and the speed of movement of the leg receiving portion 15b and the operating speed of the first actuator 18 related to this greatly decrease.

  The control unit 40 has continuously acquired the speed of movement of the leg receiving unit 15b from the start of movement of the leg receiving unit 15b, and has the speed in this reduced state reached the previously registered standard value? It is determined whether or not (step S006).

  The higher the stretch treatment strength is, the greater the load on the first actuator 18 is. For example, the treatment strength in the stretch treatment and the load on the first actuator 18 correspond to each other. Since it is known that the degree of decrease in the moving speed of the receiving part 15b has a certain relationship, the control part 40 determines the moving speed of the leg receiving part 15b corresponding to the preset treatment intensity of the stretch. As a reference value for control, while the first actuator 18 is operated, the obtained movement speed of the leg receiving portion 15b is compared with this reference value.

  When the control unit 40 determines that the acquired movement speed of the leg receiving unit 15b has reached the reference value, it sends an operation stop control command to the second actuator 19 and the supply / discharge control mechanism of the leg air cell. Thereafter, the second actuator 19 is stopped, and the tilting of the leg support portion 15 is stopped (step S007). Thereby, tilting of the leg support part 15 is stopped without exceeding the stretch treatment strength selected and set in advance, and excessive stretch treatment is not performed. On the other hand, if the speed does not reach the reference value in step S006, the process returns to step S003 to continue the tilting of the leg support 15 by the second actuator 19, and the subsequent steps are repeated.

  In this way, the treatment intensity is determined from the moving speed of the leg support 15b, and the operation of the second actuator 19 related to the tilt of the leg support 15 is controlled, so that the tilt angle and stretch due to individual differences in leg length are controlled. Stretching with appropriate treatment strength is possible without being affected by changes in the relationship with strength.

  The control unit 40 stops the second actuator 19 and contracts the leg air cell by discharging the air to release the leg from the nipping state (step S008), and nipping the thigh with another air cell 79. If this is the case, the leg will return to a state where it can be moved freely when it is released from the pinched state by air discharge.

  Thereafter, the leg receiving part 15b reaches the movement limit in the direction away from the seat part 12 in relation to the base part 15a, and in response to this, the control part 40 puts the first actuator 18 into an operation stopped state (step S009). A series of stretch treatment ends.

  Thereafter, the control unit 40 moves to another massage and the control unit 40 operates the second actuator 19 in the contracting direction to move the leg support unit 15 downward when the position of the leg support unit 15 is not suitable for the next treatment. The leg support 15 is adjusted to a position suitable for treatment, for example, the first actuator 18 is moved and the leg support 15b is moved closer to the seat 12.

  In addition, as for the operation timing of each mechanism part related to the stretch treatment, as described above, after the air cell starts to expand, the leg actuator 15 starts to tilt by the second actuator 19 and then the first actuator 18 is moved. Although the movement of the used leg support 15b is started (see FIG. 9), the present invention is not limited to this, and even if the leg support 15b moves at the tilt start position of the leg support 15, the leg When there is no possibility that the receiving part 15 or the foot of the user will touch the floor, the tilting of the leg support part 15 and the movement of the leg receiving part 15b may be started at the same time.

  In addition, when another air cell 79 that holds the thigh is used, the timing of the expansion start is as shown in the timing examples of FIGS. 10 to 12 after the control unit 40 starts tilting the leg support unit 15. Either when the movement of the leg support 15b is started and when the tilt of the leg support 15 and the movement of the leg support 15b are started simultaneously, or simultaneously with the start of the tilt of the leg support 15 by the second actuator 19. It does not matter at any time before or after the start of tilting.

  As described above, the massage machine according to the present embodiment includes the leg support portion 15 that supports the leg so as to be tiltable on the front side of the seat portion 12, the base portion 15 a attached to the seat portion 12, and a leg holder that is movable relative thereto. When the leg support 15 is tilted upward as a stretch treatment for the leg, the leg is sandwiched in advance by the leg air cell and is held and fixed on the leg receiver 15b. As the tilting progresses, the leg support 15b is moved little by little in a direction away from the seat 12, so that the leg support 15 is tilted upward without lifting the leg from the leg support 15 or the seat 12. The leg can be stretched efficiently without stretching the leg and straining the knee, and the treatment for stretching the leg can be performed smoothly and appropriately. Was excellent treatment effect can be imparted.

  Further, the treatment intensity in the stretch treatment corresponds to the load of the first actuator 18 that moves the leg receiving portion 15b, and the moving speed of the leg receiving portion 15b changes according to the change in the load of the first actuator 18. The control unit 40 associates this change in speed with the treatment intensity, and the value of the speed of movement of the leg support 15b corresponding one-to-one with the predetermined treatment intensity of the stretch is controlled. While setting the reference value and operating the first actuator 18, while comparing the speed acquired by the control unit 40 with the reference value, when the acquired speed reaches the reference value, a control command is sent to the second actuator 19 and the like. I am trying to send it out. As a result, the control unit 40 can grasp the treatment intensity from the change in speed according to the load change of the first actuator 18, and can appropriately control the second actuator 19 to be controlled, and conforms to the set treatment intensity. The second actuator 19 is actuated so that the leg support 15 can be tilted, and stretching can be executed with an appropriate treatment strength. As a result, the leg support tilt angle associated with individual differences in leg length The operation control of the second actuator 19 is not affected by the situation in which the relationship with the strength of the stretch changes for each user, and it is possible to always stretch with appropriate treatment strength even if the user is replaced. It becomes.

  In the massage machine according to the above-described embodiment, when the movement state of the leg receiving part 15b is grasped, the position change of the leg receiving part 15b is acquired by the displacement detecting means 15d such as a linear encoder, and the control part 40 is displaced. The movement speed of the leg receiving portion 15b obtained by calculating the speed from the displacement and the detection interval of the displacement obtained from the output of the detection means is associated with the treatment intensity of the stretch for controlling the operation of the second actuator 19. In addition to this, the first actuator is of a type that expands and contracts by moving the movable part linearly with respect to the fixed part, and a linear encoder or the like as a displacement detecting means is integrally provided. And obtained by calculating the speed from the displacement and the detection interval of this displacement, which is obtained from the output of the displacement detecting means of the first actuator. , The operating speed of the first actuator, the rate of extension of the actuator in particular, in association with the treatment intensity of the stretch may be configured for use in the same way the operation control of the second actuator. That is, as long as the speed appears as a result of the operation of the actuator, the speed is not limited to the speed acquired for the leg receiving portion on the driven side with respect to the actuator, and may be the speed acquired by directly detecting the change of the actuator.

  Further, in the massage machine according to the embodiment, the control unit 40 is configured to use the movement speed of the leg receiving unit 15b in association with the treatment intensity of the stretch for the operation control of the second actuator 19. The operation speed of the second actuator may be used as it is for the operation control of the second actuator as it is associated with the treatment intensity of the stretch. In this case, the control unit obtains the operating speed of the second actuator, specifically the speed of extension of the telescopic type actuator obtained from the output of the linear encoder as the displacement detection means of the second actuator, as the treatment intensity of the stretch. Correspondingly, it is used for operation control of the second actuator. Further, in grasping the tilting state of the leg support part, the change in the tilt angle of the leg support part is obtained by a displacement detection means such as a rotary encoder, and the control part obtains the displacement obtained by such a displacement detection means and the displacement. The speed of tilting of the leg support portion obtained by calculating the speed from the detection interval can also be used for the operation control of the second actuator as described above.

  The speed, which is a physical quantity related to the operation of the actuator, is used as a guideline for controlling other actuators by the control unit. However, other than the speed, the speed can be changed according to the change in the actuator load. Other physical quantities related to the operation of the actuator, such as current, may be used as a guide for control. Furthermore, in the case where the actuator performs feedback control of the actuator, such as performing PWM control of the actuator so as to keep the operation speed of the actuator constant, the change amount or change rate of the feedback value such as the increase amount of the PWM value is set. It can also be a physical quantity. When speed is not used as such a physical quantity, it is possible to control a treatment mechanism such as an actuator similar to the above while maintaining a reliable treatment operation with almost no influence of a decrease in speed.

  In such a case, while stretching the leg support part upward as a stretch treatment to the leg back part, the control part that controls the operating state of each mechanism part as the control target is away from the seat part of the leg receiving part. In response to the treatment intensity of the stretch, the correspondence between the change in the load applied to the actuator according to the treatment intensity of the stretch and the change in the predetermined physical quantity related to the operation of this actuator is grasped in advance, and the treatment intensity as a predetermined standard is supported Setting a reference value of the physical quantity to be performed, acquiring the physical quantity during operation of the actuator, and executing control to send a control command to a predetermined control target when the physical quantity reaches the reference value; I can say that.

  The target of control by such a control unit is not limited to the actuator that presses the illustrated leg support unit or the air cell supply / exhaust control mechanism, but a motor that tilts the leg support unit via a speed reduction mechanism or the like instead of the actuator. In the case of using other driving means such as the above, such a driving means can be set as a control object as described above. The control unit grasps in advance the correspondence relationship between the change in the load applied to the drive unit according to the stretch treatment strength and the change in the predetermined physical quantity related to the operation of the drive unit in the upward tilt of the leg support unit, Set a reference value of the physical quantity corresponding to the reference treatment intensity, acquire the physical quantity during operation of the drive means, and send a control command to the drive means when the physical quantity reaches the reference value Control will be performed.

  Further, in the massage machine according to the embodiment, the leg support 15 is tilted upward by the second actuator 19 to perform the stretch treatment of the leg back portion. In order to promote the extension of the back of the leg when tilting, an air cell that can lift the lower part of the thigh of the user at the front upper position of the seat 12 may be provided as shown in FIG. . In this case, the air cell expands and raises the front part of the seat part 12, makes the surface of the seat part 12 contact the back side of the lower part of the thigh, and holds the thigh part in a slightly lifted state. As a result, the knee moves to the upper side while the leg is stretched, and acts to further stretch the back of the leg. Such a raised state of the front portion of the seat portion 12 may be mechanically formed by, for example, pushing up the front portion of the seat portion 12 from below with an actuator or the like.

  In addition, as shown in FIG. 14, in order to promote the extension of the back portion of the leg, a position adjusting means 81 for raising the shaft portion 15c at the front end of the seat portion 12 that is the center of tilting of the leg support portion 15 is provided. You can also. When the shaft 15c of the leg support 15 is raised by the position adjusting means 81 during the upward tilt of the leg support 15, the center position of the tilt of the leg support 15 changes, so that the leg support 15 is below the knee of the leg. A part will be in the state moved to the upper side, and will act so that a leg sole may be extended more like the case where the front part of seat 12 is raised. Further, since the position of the leg support portion 15 can be raised by raising the shaft portion 15c instead of tilting the leg support portion 15 greatly, the stretching effect of the back of the leg is ensured while the leg support portion 15 is secured. The tilt range can be set small. The position adjusting means for raising the shaft portion 15c at the tilt center may also serve as an air cell or the like of the seat portion adjusting means for raising the front portion of the seat portion 12.

(Second embodiment of the present invention)
In the massage machine according to the first embodiment, the control unit 40 moves the leg receiving portion 15b corresponding to the treatment strength selected by the user among the treatment strengths in a plurality of stages in the stretch treatment to the leg back. Control that causes a change from the previous operating state, such as stopping the operation of the second actuator 19 by sending a control command when the speed acquired at any time reaches this guideline value. In addition to this, as a second embodiment, as shown in FIG. 15, the control unit 40 determines a guideline value in the control, which is different from the treatment intensity that can be selected by the user. The physical quantity corresponding to a predetermined standard treatment intensity is smaller but close to these treatment intensities, while the one selected by the user from a plurality of stages of treatment intensities is set as the target treatment intensity, and the first actuator 18 When a physical quantity such as an operating speed or a speed of movement of the leg receiving portion 15b reaches a reference value, a control command for operating the control target such as the second actuator 19 so as to realize the target treatment intensity is transmitted. Control that the second actuator 19 stops the operation at a predetermined timing when the actual treatment intensity reaches the target treatment intensity after the speed reaches the reference value with respect to the second actuator 19 by the unit 40 It can also be configured to execute control such as sending a command.

  In this case, the control unit 40 can always keep the standard value in the control of the stretch treatment constant regardless of the selection of the treatment intensity by the user, and the selected treatment intensity is actually determined from the situation where the standard value is reached. If the remaining operation amount of each mechanism until it can occur is known, control can be simplified, and refer to the state of each part when the reference value is reached (for example, movement amount of the leg support) Thus, it is possible to perform control taking these into consideration, which is convenient in terms of control.

  The process of stretching the leg back portion of the user in the massage machine according to the second embodiment will be described with reference to the flowchart of FIG. As a premise, as in the first embodiment, the control unit 40 is about to perform a stretch treatment on the leg while the user is seated on the massage machine 1 and the back is leaned against the backrest 13. And

  When starting the operation of each mechanism portion of the leg support 15 at the initial position in the stretch treatment, the control unit 40 first sets a plurality of treatment strengths of the preset stretch, for example, strong, medium, weak Of the three treatment intensities, the treatment instructed by the user before treatment or the treatment intensity selected and set as part of the massage course is read out, and this treatment intensity is registered as the target treatment intensity (step S101). .

Thereafter, the control unit 40 causes the leg support unit 15 to supply air to each leg air cell located on both sides of the leg to expand the air cell (step S102). Along with the expansion of the leg air cell, the calf portion of the leg is clamped from both sides by the air cell and is restrained by the leg receiving portion 15b.
In a state where the legs are sandwiched and restrained, the control unit 40 extends the second actuator 19 with respect to the leg support unit 15 at the lowest initial position, and tilts the leg support unit 15 upward (step S103).

  In addition, when another air cell is provided on both sides of the seat portion 12 to hold the leg thigh, the control unit 40 starts before or after the leg actuator 15 tilts by the second actuator 19 or starts tilting. At the same time, air is supplied to the air cell 79 for holding the thigh, and this is inflated to hold the thigh.

  After the tilting of the leg support 15 by the second actuator 19 is started and the end of the leg support 15 is separated from the floor to some extent, the control unit 40 operates the first actuator 18 and the leg receiving part of the leg support 15 15b is moved little by little in the direction away from the seat 12 with respect to the base 15a (step S104).

  On the other hand, the control unit 40 receives the output of the displacement detecting unit 15d as the leg receiving unit 15b starts to move, grasps the movement displacement of the leg receiving unit 15b, and obtains the displacement of the leg receiving unit 15b obtained from the displacement detecting unit 15d. From the displacement detection interval, the speed of movement of the leg receiving portion 15b is continuously calculated and acquired as information for controlling the operation of the second actuator 19 (step S105).

  Based on the control of the control unit 40, the second actuator 19 is extended to tilt the leg support unit 15 upward to lift the lower part of the user's leg below the knee, and the leg receiving unit 15b is By moving the leg to the side, a load such as a stretching exercise is applied to the leg, and the back of the leg is stretched.

  Thereafter, the amount of movement of the leg receiving portion 15b approaches the limit of the range of movement of the legs of the user, the lower part of the leg of the user becomes difficult to move from the knee, and the leg receiving portion 15b moves away from the seat 12 of the leg receiving portion 15b. A resistance is applied in the movement of the direction. As a result, the load on the first actuator 18 that tilts the leg receiving portion 15b increases rapidly, and the speed of movement of the leg receiving portion 15b and the operating speed of the first actuator 18 associated therewith are greatly reduced.

  The control unit 40 sets the speed of movement of the leg receiving part 15b corresponding to a predetermined treatment intensity as a reference for stretching as a reference value for control, and from the start of movement of the leg receiving part 15b, The speed of movement is continuously acquired, and the acquired speed of movement of the leg holder 15b is compared with this reference value, and the speed of movement of the leg holder 15b in the lowered state is set in advance. It is determined whether or not the low price has been reached (step S106).

  When the control unit 40 determines that the acquired movement speed of the leg receiving unit 15b has reached the reference value, the control unit 40 generates the registered target treatment intensity for the second actuator 19 and the supply / discharge control mechanism of the leg air cell. The control commands for operating them are sent out as follows.

  In response to this control command, the second actuator 19 enters an operation stop state at an appropriate timing after the speed reaches the reference value, and the tilting of the leg support portion 15 stops (step S107). Thereby, the tilting state of the leg support part 15 which produces the treatment intensity | strength of the stretch selected beforehand and set is obtained. On the other hand, if the speed does not reach the reference value in step S106, the process returns to step S103 to continue the tilting of the leg support portion 15 by the second actuator 19, and the subsequent steps are repeated.

  The control unit 40 stops the second actuator 19 and also stops the operation of the first actuator 18 to stop the movement of the leg receiving unit 15b (step S108). Thereafter, the control unit 40 causes the leg air cell to contract by discharging air to release the leg from the sandwiched state (step S109). If the thigh is sandwiched by another air cell 79, the control unit 40 If the air is released from the pinched state by discharging the air, the leg returns to a freely movable state, and a series of stretch treatments is completed.

(Third embodiment of the present invention)
Further, in the massage machine according to the first embodiment, the control unit 40 uses the speed of movement of the leg receiving part 15b in the stretch treatment to the back of the leg as a guide value, and the speed obtained at any time with this guide value. In this case, the control unit 40 obtains the first acquired by the control unit 40 as a third embodiment. When a physical quantity such as the operating speed of the actuator 18 or the moving speed of the leg receiving portion 15b reaches a reference value, the first actuator and / or the leg receiving portion 15b in which a predetermined change has occurred due to the operation of the first actuator so far. It is also possible to adopt a configuration in which the control is executed so that the control command corresponding to this state is sent to the control target such as the second actuator 19.

  In this case, the control unit 40 determines that the state of the first actuator and / or the leg receiving unit changed with the operation of the first actuator, for example, the speed of movement of the leg receiving unit 15b is a reference value as shown in FIG. A control command for operating the second actuator 19 so as to be adapted to the amount of movement of the leg receiving portion 15b when it has been reached is sent to the second actuator 19, and the second actuator 19 as a control target is appropriately operated. Thus, the leg support 15 is tilted in accordance with the user. That is, the amount of movement of the leg receiving portion 15b becomes a size corresponding to the length of the leg, for example, as the leg of the user becomes longer, so that it is used as information indicating the leg length of the user, that is, the physique. It is possible to control the operation of the second actuator 19 in accordance with the amount of movement of the leg receiving portion 15b, so that the treatment strength at the same strength level is generated, but the optimum amount of tilt varies depending on the physique of the user. For example, it is possible to perform smooth stretch treatment without difficulty by properly linking each mechanism.

(Fourth embodiment of the present invention)
A massage machine according to a fourth embodiment of the present invention will be described with reference to FIGS.
In each of the drawings, the massage machine according to the present embodiment has a control configuration capable of performing leg stretch treatment together with various treatment mechanisms, as in the first embodiment. In the treatment intensity adjustment at the time of massaging treatment for the part, the control unit 40 sets a standard value of the operation speed of the massaging balls 51 related to massaging treatment corresponding to the standard massaging intensity of massaging. While operating the kneading motor 62, the operating speed of the kneading balls 51 is acquired. When this speed reaches the reference value, a control command is sent to the advancing / retreating motor 58 as a control target, and the strength adjustment is performed. In this configuration, the operation state of the advancing / retracting motor 58 is changed, and control similar to the control in the leg stretch treatment in the first embodiment is executed.

  Note that points other than the control related to the intensity adjustment in the massage treatment by the massage balls 51 are the same as those in the first embodiment, and detailed description thereof is omitted.

  In addition to the control similar to that of the first embodiment, the control unit 40 tilts the kneading balls 51 and the drive mechanism 60 with respect to the base 54 in the mechanical unit 50, particularly as a treatment intensity adjustment during the kneading treatment. When controlling the operating state of the advance / retreat motor 58 that changes the amount of the kneading balls 51 protruding toward the user, itching treatment in the swinging of the kneading balls 51 as a kneading treatment to the treatment target portion of the back The correspondence between the change in the load applied to the stagnation motor 62 according to the strength and the change in the predetermined physical quantity related to the operation of the stagnation motor 62 is grasped in advance, and the reference value of the physical quantity corresponding to the treatment intensity as a guide is obtained. The physical quantity is set during the operation of the stagnation motor 62, and when the physical quantity reaches the reference value, a predetermined control command is sent to the advance / retreat motor 58.

  The predetermined physical quantity related to the operation of the kneading motor 62 is a drive shaft (not shown) for driving the kneading ball support arm 52 obtained from an encoder 65 as a displacement detecting means built in the housing 61 of the drive mechanism 60. (Omitted) The operating speed of the kneading balls 51 obtained by calculating the speed from the rotation angle displacement and the detection interval of this displacement, more specifically, the kneading balls 51 in a direction approaching the user with respect to the drive mechanism 60. The speed of movement is used. As described above, the speed is not based on the change directly detected from the stagnation motor 62, but the speed that appears on the drive shaft of the stagnation mechanism on the driven side of the stagnation motor 62 as a result of the operation of the stagnation motor 62 is used for control. Thus, the speed can be easily acquired with a simple detection mechanism for grasping the position of the balls while ensuring the accuracy of the control.

  And the control part 40 has set the treatment intensity | strength in massage treatment to the user of a massage machine, specifically a to-be-treated person, in advance in multiple stages, for example, in five stages. As a treatment intensity based on the intensity selected by the user from among the intensity, a standard value of the physical quantity corresponding to the standard intensity, that is, a standard value of the operating speed of the kneading balls 51 in this embodiment is set. It becomes.

  More specifically, the operation speed of the kneading balls 51 is such that when the kneading balls 51 move toward the user with respect to the drive mechanism 60 by the operation of the kneading motor 62, the kneading balls support arm 52 is moved. The rotational angular displacement of the drive shaft to be driven is obtained as the number of pulse signals output from the encoder 65, and the time corresponding to the number of pulses corresponds to the angular displacement detection interval, so that it corresponds to the number of pulse signals. This is a mechanism that can be calculated from the angular displacement and the time corresponding to the number of pulses.

  However, as a practical process, when the control unit 40 generates a unit angular displacement, that is, one pulse signal, the width of the pulse signal corresponding to the time taken for the displacement is detected (FIG. 18). Since this has a one-to-one correspondence with the speed, it is preferable to simplify the control process by using the value of the pulse signal width as it is for the control instead of the speed. In this case, the pulse signal width is also a physical quantity related to the operation of the stagnation motor 62, and the control unit 40 has a pulse signal width instead of speed corresponding to the treatment intensity of stagnation treatment set in a plurality of stages, for example, five stages. After associating the values with each other (see Table 1), the treatment intensity that is selected by the user from the five levels of intensity is used as a guide, and the value of the pulse signal width corresponding to this reference intensity is the target. The operation control of the motor is executed by setting it to a low value.

  Table 1 below shows an example of correspondence between the five levels of treatment intensity and the value of the pulse signal width. Table 1 shows the corresponding pulse signal width and the corresponding change amount of the operating speed (ratio with respect to no load) for each treatment intensity that becomes larger in the lower part of the table.

  In this way, the control unit 40 uses the rotation angle displacement and the detection interval of this displacement for the signal output of the encoder 65 indicating the rotation angle displacement of the drive shaft of the kneading mechanism to grasp the position of the kneading balls 51. The operating speed of the ball 51 is obtained, and this speed is used as information for controlling the advance / retreat motor 58 that tilts the drive mechanism 60 to adjust the treatment intensity. Thereby, when adjusting the treatment strength in the massage treatment, when the treatment strength is actually increased corresponding to the set strength, the load of the massage motor 62 is increased, and the operation speed of the massage balls 51 is reduced. It can be detected by the control unit 40. The control unit 40 controls the advance / retreat motor 58 based on such an operation speed, so that the operation of the motor can be controlled with reference to a state where the set treatment intensity is actually obtained, and the displacement itself such as the tilt angle of the drive mechanism unit. As in the case of controlling the advancing / retreating motor 58 based on the above, the treatment intensity does not vary due to the difference in the limit tilt angle due to the difference in the physique among individuals, and the patient moves on the backrest 13. Thus, even when the position of the treatment target portion on the backrest 13 is changed, it can be adjusted and set so that treatment can be performed with appropriate treatment intensity.

  Next, the treatment intensity adjustment process in the massage treatment for the user in the massage machine according to the present embodiment will be described (see FIG. 19). As a premise, as in the case of the stretch treatment of the back of the leg in the first embodiment, the massage machine 90 is activated with the user seated on the massage machine 90 and the back leaning against the backrest 13. When the operation state instruction such as a massage course is input by the user and the control unit 40 performs the massage treatment on the treatment target part on the back of the user, Assume that the remote controller 30 is instructed by the user to make an adjustment to increase the intensity of the itch treatment.

  When the control unit 40 receives an input instruction for the treatment intensity adjustment of the user and starts the operation of the advance / retreat motor 58 related to the treatment intensity adjustment in the massage treatment, first, the treatment intensity of a plurality of stages of the itch set in advance is set. Among them, the value of the operation speed of the kneading balls 51 recorded in advance in association with the treatment intensity designated by the user is registered as a control guide value (step S201).

  Then, the control unit 40 operates the advance / retreat motor 58 of the mechanical unit 50 to tilt the kneading balls 51 and the drive mechanism 60 (step S202), and leans the kneading balls 51 in operation related to the kneading to the backrest portion 13. Then, it is protruded toward the user so as to be further pressed against the treatment target site on the back of the user (see FIG. 20).

  On the other hand, the control unit 40 receives the output of the encoder 65 as a displacement detection means in the kneading mechanism as the advance / retreat motor 58 starts operating, and grasps the rotational angle displacement of the drive shaft and the kneading ball 51 position obtained therefrom. In addition, the control unit 40 continuously calculates the operating speed of the kneading balls 51 from the rotational angle displacement of the drive shaft obtained from the encoder 65 and the detection interval of this displacement, and controls the operation of the advance / retreat motor 58. Is obtained as guide information (step S203).

  As the kneading balls 51 push the back of the user as the kneading balls 51 are moved toward the user by the tilting of the drive mechanism 60 along with the swinging related to the kneading treatment, a state is obtained in which the kneading balls 51 press the back of the user. . At this time, as the kneading balls 51 advance due to the operation of the advance / retreat motor 58, the kneading balls 51 increase the pressing strength of the treatment target portion of the user, and resistance is exerted in the movement related to the kneading balls 51. Increased state. Along with this, the operating speed of the kneading balls 51 driven by the kneading motor 62, that is, the speed at which the kneading balls 51 move in the direction approaching the user is significantly reduced.

  The control unit 40 has continuously acquired the operation speed related to the kneading of the kneading balls 51 from the start of the operation of the advance / retreat motor 58, and has the speed in this reduced state reached the previously registered standard value? It is determined whether or not (step S204).

  The treatment strength at the time of strength adjustment in the massage treatment corresponds to the load of the massage motor 62, for example, as the treatment strength of the massage increases with the tilting by the advance / retreat motor 58, the load on the massage motor 62 increases. Further, it is known that the increase in the load of the kneading motor 62 and the degree of decrease in the operating speed of the kneading balls 51 driven by the kneading motor 62 have a certain relationship. The operation speed of the kneading balls 51 corresponding to the treatment intensity is set as a reference value, and the kneading motor 62 is operated as the kneading treatment, and the acquired operation speed is compared with this reference value while the kneading balls 51 are operated.

  When the control unit 40 determines that the obtained operation speed of the kneading balls 51 has decreased and has reached the reference value, the control unit 40 sends an operation stop control command to the advance / retreat motor 58. Thereafter, the advance / retreat motor 58 is stopped, and the tilting of the kneading balls 51 and the drive mechanism 60 with respect to the base 54 is stopped (step S205). Thereby, the protrusion of the kneading balls 51 is suppressed so as not to exceed the pre-selected and set strength of the kneading treatment, and the strength of the kneading treatment by the kneading balls 51 corresponds to the setting.

  On the other hand, if the speed does not reach the reference value in step S104, the process returns to step S102 to continue the tilting of the kneading balls 51 and the drive mechanism 60 by the advance / retreat motor 58, and the subsequent processes are repeated.

  The treatment intensity is judged from the operation speed of the kneading balls 51 related to the kneading, and the operation of the advance / retreat motor 58 related to the tilting of the kneading balls 51 and the drive mechanism 60 is controlled. It is possible to perform stagnation treatment with an appropriate treatment intensity without being affected by a change in the relationship between the amount of protrusion of the stagnation ball and the strength of stagnation.

  When the control unit 40 stops the advance / retreat motor 58, the intensity adjustment in a series of massage treatment is completed. Thereafter, the control unit 40 maintains the stop state of the advance / retreat motor 58 and continues the stagnation treatment state for a predetermined time that is defined in advance as treatment time. Thereafter, when the massage treatment is finished and the process proceeds to another massage, the control unit 40 sets the advance / retreat motor 58 to the massage ball when the positions of the massage ball 51 and the drive mechanism 60 are not suitable for the next treatment. 51 and the drive mechanism 60 are rotated in a rotational direction that tilts away from the user, and the kneading balls 51 are adjusted to be in a position suitable for treatment, such as moving the mechanical unit 50 up or down. It becomes.

  As described above, in the massage machine according to the present embodiment, in the treatment intensity adjustment during the massage treatment, the load applied to the massage motor 62 according to the massage treatment intensity in the operation of the massage ball 51 as the massage treatment is changed. And the control unit 40 grasps in advance the correspondence relationship between the kneading balls 51 and the change in the operating speed of the kneading balls 51, sets a reference value for the operating speed of the kneading balls 51 corresponding to the target treatment intensity, and operates the kneading motor 62. During this time, the control unit 40 acquires the operating speed of the kneading balls 51, and executes control for sending a control command to the advance / retreat motor 58 when the operating speed of the kneading balls 51 reaches the reference value. is there.

  Thus, in the massage machine according to the present embodiment, the treatment intensity in the massage treatment corresponds to the load of the massage motor 62 that moves the massage balls 51, and changes according to the change in the load of the massage motor 62. By utilizing the presence of a predetermined physical quantity related to the operation of the kneading motor 62, such as the operating speed of the kneading balls 51, the control unit 40 associates this change in physical quantity with the treatment intensity, The value of the physical quantity corresponding to the treatment intensity is set as a reference value, and the physical quantity acquired by the control unit 40 is compared with the reference value while the stagnation motor 62 is operated. When the low price is reached, a control command is sent from the control unit 40 to the advance / retreat motor 58. As a result, the treatment intensity can be grasped from the change in physical quantity according to the load change of the stagnation motor 62, the advance / retreat motor 58 can be appropriately controlled, and the advance / retreat motor 58 is operated so as to conform to the set treatment intensity. The ball 51 can be moved, and as a result, the relationship between the inclination angle of the kneading balls 51 and the drive mechanism 60 and the strength of the kneading treatment due to individual differences in physique and movement of the user is changed. The operation control of the advancing / retreating motor 58 is not affected, and even if the condition of the user on the backrest 13 changes, it is possible to squeeze and treat it while always adjusting it to an appropriate treatment intensity.

(Fifth embodiment of the present invention)
In the massage machine according to the fourth embodiment, the control unit 40 adjusts the treatment intensity at the time of the massage treatment, and the operation speed of the massage ball 51 related to the massage treatment corresponding to the treatment intensity of the massage used as a guide. While setting the low value and acquiring the operating speed of the kneading balls 51 during the operation of the kneading motor 62, when this speed reaches the reference value, a control command is sent to the advancing / retreating motor 58 as a control object, The operating state of the advancing / retreating motor 58 is changed from that until now. In addition, as a fifth embodiment, the control unit 40 replaces the physical quantity related to the operation of the kneading motor 62 with the kneading balls 51 and the driving mechanism. During the operation of the advance / retreat motor 58 for tilting the unit 60, a physical quantity related to the operation of the advance / retreat motor 58 is acquired, and when this reaches a preset reference value, a predetermined control command is sent to the advance / retreat motor 58 to advance It may be configured to change the operating state of the motor 58.

  The physical quantity related to the operation of the advance / retreat motor 58 is calculated from the angular displacement obtained by the tilting of the drive mechanism 60 and the detection interval of this displacement, which is obtained from the encoder 55 as the displacement detection means provided in the mechanical unit 50. The operation speed of the kneading balls 51 and the drive mechanism 60 acquired by the above, more specifically, the speed at which the kneading balls 51 and the driving mechanism 60 tilt with respect to the base portion 54 in a direction approaching the user.

  The operating speed of the kneading balls 51 and the drive mechanism section 60 is determined by the driving mechanism section when the kneading balls 51 and the driving mechanism section 60 are tilted with respect to the base portion 54 toward the user by the operation of the advance / retreat motor 58. The angular displacement due to the tilt of 60 is obtained as the number of pulse signals output from the encoder 55, and the time corresponding to the number of pulses corresponds to the angular displacement detection interval, so that the angular displacement corresponding to the number of pulse signals is obtained. And the time corresponding to the number of pulses.

  As described above, the speed is not based on the change directly detected from the advance / retreat motor 58, but the speed that appears in the drive mechanism 60 on the driven side of the advance / retreat motor 58 as a result of the operation of the advance / retreat motor 58 is used for control. The speed can be easily acquired with a simple mechanism while ensuring the accuracy of the control.

  Then, the treatment intensity | strength adjustment process in the massage treatment to the user in the massage machine which concerns on this 5th Embodiment is demonstrated using the flowchart of FIG. As a premise, as in the case of the fourth embodiment, while the user is seated on the massage machine 90 and the back is leaned against the backrest 13, the patient is swallowed while performing the massage treatment. It is assumed that an input is given for an adjustment to increase the treatment intensity.

  When the control unit 40 receives an input instruction for the treatment intensity adjustment of the user and starts the operation of the advance / retreat motor 58 related to the treatment intensity adjustment in the massage treatment, first, the treatment intensity of a plurality of stages of the itch set in advance is set. Among them, the kneading balls 51 and the operating speed values related to the tilting of the drive mechanism 60 recorded in advance in association with the treatment intensity input by the user are registered as reference values for control (step). S301).

  Then, the control unit 40 operates the advance / retreat motor 58 of the mechanical unit 50 to tilt the kneading balls 51 and the drive mechanism 60 (step S302), and leans the kneading balls 51 in operation related to the kneading to the backrest portion 13. It protrudes toward the user so as to be further pressed against the treatment target site on the back of the user.

  On the other hand, the control unit 40 receives the output of the encoder 55 as the displacement detecting means at the start of the tilting of the kneading balls 51 and the drive mechanism unit 60, and the tilting angular displacement of the driving mechanism unit 60 and the protrusion of the kneading balls 51 obtained therefrom. Know the amount. In addition, the control unit 40 continuously calculates the operating speeds of the kneading balls 51 and the drive mechanism unit 60 from the tilt angle displacement of the drive mechanism unit 60 obtained from the encoder 55 and the detection interval of this displacement, and advances and retreats. Obtained as guide information for operation control of the motor 58 (step S303).

  As the kneading balls 51 push the back of the user as the kneading balls 51 are moved toward the user by the tilting of the drive mechanism 60 along with the swinging related to the kneading treatment, a state is obtained in which the kneading balls 51 press the back of the user. . At this time, as the kneading balls 51 are advanced by the operation of the advancing / retreating motor 58, the kneading balls 51 increase the pressing strength of the treatment target portion of the user, and the kneading balls 51 and the drive mechanism 60 are tilted. The resistance increases. Along with this, the operating speed of the kneading balls 51 and the drive mechanism 60 driven by the advance / retreat motor 58, that is, the speed at which the kneading balls 51 and the driving mechanism 60 are tilted toward the user side is greatly reduced.

  The control unit 40 uses the operation speeds of the kneading balls 51 and the drive mechanism 60 corresponding to the treatment intensity set in advance as reference values, and continues the speeds from the start of the tilting of the kneading balls 51 and the driving mechanism 60. The acquired speed is compared with the reference value, and it is determined whether or not the speed in the lowered state has reached the previously registered reference value (step S304).

  When the control unit 40 determines that the obtained speed of the kneading balls 51 and the drive mechanism unit 60 has decreased and has reached the reference value, the control unit 40 is preset in accordance with the treatment intensity of the selected kneading. The position data of the kneading balls 51 and the drive mechanism 60 are acquired (step S305). Based on this position data, the control unit 40 controls the advance / retreat motor 58 so that the kneading balls 51 and the drive mechanism unit 60 are tilted by a predetermined angle toward the side away from the user and then stopped. The advancing / retreating motor 58 returns to the side where the kneading balls 51 and the driving mechanism 60 are away from the user by the predetermined angle, and then enters a stop state, and the kneading balls 51 and the driving mechanism 60 are moved. Is stopped (step S306). Thereby, the amount of protrusion of the kneading balls 51 at the time of kneading becomes appropriate, and the strength of the kneading treatment by the kneading balls 51 correctly corresponds to the treatment strength selected by the user.

  On the other hand, if the speed does not reach the reference value in the step S304, the process returns to the step S302 to continue the tilting of the kneading balls 51 and the drive mechanism 60 by the advance / retreat motor 58, and the subsequent processes are repeated.

  When the control unit 40 stops the advance / retreat motor 58, the intensity adjustment in a series of massage treatment is completed. Thereafter, as in the fourth embodiment, the control unit 40 continues the massage treatment state for a predetermined time that is defined in advance as the treatment time.

  In addition, about the massage machine which concerns on the said 1st thru | or 5th embodiment, a stretch and an itch are mentioned as a specific example of treatment, and at the time of these treatment, treatment intensity and drive means, such as an actuator and a motor, in a control part Is associated with a predetermined physical quantity related to the operation of the physical quantity, a standard value of the physical quantity corresponding to the standard treatment intensity is set, and when the acquired physical quantity reaches the standard value, the control unit becomes a control target such as another actuator. Although the point which performs control which sends out a control command is explained, application of such a control method is not restricted to stretch and itch, and can generalize about any treatment. That is, the control unit that controls the operating state of the driving unit at the time of predetermined treatment is a change in the load applied to the driving unit according to the treatment intensity in the operating state of the treatment executing unit driven by the driving unit, and the driving unit By grasping in advance the correspondence relationship with the change of the predetermined physical quantity related to the operation, setting the reference value of the physical quantity corresponding to the reference treatment intensity, acquiring the physical quantity during the operation of the driving means, and obtaining the physical quantity When the value reaches the reference value, control for sending a control command to a predetermined control target is executed.

DESCRIPTION OF SYMBOLS 1 Massage machine 11 Base part 12 Seat part 13 Back part 14 Armrest part 15 Leg support part 15a Base part 15b Leg receiving part 15c Shaft part 15d Displacement detection means 16 Stand 17 Frame 18 1st actuator 19 2nd actuator 20 Guide rail 30 Remote control unit 40 Control unit 50 Mechanical unit 51 Kneading ball 52 Kneading ball support arm 54 Base unit 55 Encoder 55a Sensor unit 55b Scale unit 57 Lifting motor 58 Advance / retreat motor 58a Small gear 60 Drive mechanism unit 61 Housing 62 Kneading motor 64 Strike motor 65 Encoder 67 Tooth part 70 Air pump 71 Buttocks air cell 72 Thigh air cell 73 Back air cell 74 Lumbar air cell 75, 76 Leg air cell 77, 78 Leg air cell 79 Clamping air cell 80 Air cell 81st place Position adjustment means

Claims (2)

In a massage machine including a seat part having a seat part adjusting means for moving the position of the front part of the seat surface up and down and a backrest part, and a leg support part for supporting the leg on the front side of the seat part,
The leg support portion is attached to the front end portion of the seat portion so as to be tiltable. The leg support portion is disposed so as to be movable in the leg longitudinal direction with respect to the base portion. It is arranged in one piece, holding at least the calf part of the leg from the side and holding and fixing the lower part from the knee of the leg on the leg receiving part, and the leg length by moving the leg receiving part with respect to the base part A first actuator for adjusting the directional position,
A second actuator that tilts the leg support and changes the tilt angle of the leg support with respect to the seat;
As stretch treatment to Ashiura portion, wherein the leg of the knee of the user while holding fixed the lower part on the leg receiving portion by clamping means, Noto for upwardly tilting the leg support in the second actuator In synchronism, the position of the front part of the seat surface of the seat part is raised , and the leg receiving part is moved together with the legs in a direction away from the seat part by the first actuator. In a massage machine comprising a seat portion and a backrest portion, and a leg support portion arranged to support the leg on the front side of the seat portion,
The leg support portion is attached to the front end portion of the seat portion so as to be tiltable. The leg support portion is disposed so as to be movable in the leg longitudinal direction with respect to the base portion. It is arranged in one piece, holding at least the calf part of the leg from the side and holding and fixing the lower part from the knee of the leg on the leg receiving part, and the leg length by moving the leg receiving part with respect to the base part A first actuator for adjusting the directional position,
A second actuator that tilts the leg support and changes an inclination angle of the leg support with respect to the seat; the second actuator is disposed below the seat and extends and contracts within a predetermined range; It has a mechanism to change the height, the position of one end is fixed, and the other end can be brought into contact with the back side of the leg support part, and the position of the other end is changed by expansion and contraction. The leg support part is tilted, and the seat part has a position adjusting means for vertically moving the tilt center position of the base part of the leg support part at the front end part ,
As a stretch treatment to the back of the leg, with the holding means, the lower part from the knee of the user's leg is held and fixed on the leg holder, and the leg support is tilted upward by the second actuator, when Before moving the leg receiving portion in a direction away from each seat leg in the first actuator, massage machine, characterized in resulting in higher tilting center position of the base portion.

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