JP2019042141A - Mechanism unit of massage machine - Google Patents

Abstract

To provide a mechanism unit of a massage machine, capable of enhancing reliability and stability in an actuation related to massage.SOLUTION: Both of end parts of an inclination shaft 22 for supporting a drive part 50 and a revolving shaft 23 related to an inclination of the drive part 50 are supported by two independent base frames 25, 26. Sizes in a direction perpendicular to the inclination shaft 22 and the revolving shaft 23 and also in a direction corresponding to a front and rear direction of a backrest part in the respective base frames 25, 26 are allowed to be larger than sizes in a direction in parallel with the inclination shaft 22 and the revolving shaft 23. Then, even in a state where force to change mutual position relation of the inclination shaft 22 and the revolving shaft 23 is applied to the base frames 25, 26 from the drive part 50, position relation of the inclination shaft 22 and the revolving shaft 23 is kept without deforming the base frames. Thus, connection and linkage of respective mechanism components are kept in an appropriate state and abnormal force is not applied to the respective components, so as to prevent damage of the components and also to enhance reliability and stability in an actuation of a massage machine.SELECTED DRAWING: Figure 3

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a mechanical unit of a massage machine that moves a massager such as a massage ball to perform massage to a user, and more particularly to a massager whose position relative to the user of the massager can be adjusted.

  In a chair-type massage machine that performs massaging while supporting the user's body, a massaging ball as a treatment element provided on the backrest portion is advanced and retracted to the user who is leaning on the backrest portion. Adjustment of the amount of protrusion), and has a configuration that provides the user's desired treatment strength. In such a massage machine, as a mechanism for adjusting the movement of the massaging ball, the drive portion for operating the massaging ball is supported so as to be able to tilt, and a rack-like tooth portion is provided on the driving portion. A small gear (pinion gear) that meshes with the gear is disposed, and the small gear is rotated on a predetermined rotation axis, and the drive unit is tilted together with the collecting balls by moving the meshing teeth to move the collecting balls to the backrest. Many mechanisms have been used to allow forward and backward movement. Japanese Patent Application Laid-Open No. 2007-6975 discloses one example of a massage machine adopting such a massaging ball advancing / retracting mechanism.

JP, 2007-6975, A

  In the conventional massage machine, as shown in the patent document, in order to make it possible for the user to adjust the massaging ball as the treatment element to the user, the drive portion can be tilted and the tooth portion provided on the drive portion The meshing small gear is configured to be rotatable on the rotation shaft. In addition, in order to adjust the position of the massaging ball in the vertical direction of the backrest according to the physical constitution of the user, the drive unit is configured to be a part of a mechanical unit which is moved up and down in the backrest. Specifically, the drive unit is attached to a flat plate-like base portion which can be moved up and down in the backrest, and can move up and down together with the massaging ball. In this case, in order to arrange the drive unit in a tiltable manner, the central axis of tilting of the drive unit is supported by the base unit, and a rotation shaft provided with a small gear for moving the drive unit is supported by the base unit. It was

  In the mechanical unit in such a conventional massage machine, since the drive unit is supported by the flat base portion, it is difficult to obtain rigidity, and it is necessary to reduce the weight to move the mechanical unit up and down. Yes, the base part that is part of it is difficult to impart high rigidity leading to increased weight, and strength will be insufficient if a large reaction force that slightly exceeds the design value is applied to the massaging ball during massage There was a fear. In detail, although the force received by the massaging ball is transmitted from the drive portion to the base portion through the tilting central axis and the rotational axis, the positional relationship between the massaging ball and the tilting central axis and the rotational axis is the positional relationship between the axes on the base portion Will receive the power to change the For this reason, if a stronger force than expected is applied from the massaging ball side, the base portion is deformed, and the positional relationship of the parts on the base portion can not be maintained, and combined with the deflection of the tilting shaft and the rotating shaft itself, for example The connection between the mechanical parts becomes insufficient, for example because the meshing state between the teeth on the drive part and the small gear on the rotary shaft becomes shallow, and the force can not be properly transmitted between the parts, which may lead to breakage of the parts Had the challenge of

  The present invention has been made to solve the above-mentioned problems, and the mechanical parts supporting the respective axes involved in the tilting of the drive unit for operating the treatment elements are simplified in structure and made difficult to deform, It is an object of the present invention to provide a mechanical unit of a massage machine capable of maintaining the connection of mechanical parts to prevent breakage and enhancing the reliability and stability of the operation relating to massage.

  A mechanical unit of a massage machine according to the present disclosure is a chair-type massage machine provided with at least a seat portion and a back portion, which is disposed on the back portion and moves a treatment element to a user to perform a predetermined massage. In a mechanical unit of a massage machine to be executed, a drive unit for operating the treatment element, and a tilt shaft which is disposed in a direction perpendicular to the vertical direction and the front-rear direction of the backrest and supports the drive unit in a tiltable manner. And a plurality of teeth formed in the same tooth shape as the external gear having a predetermined pitch circle whose center is matched with the tilting axis, the teeth section fixedly disposed on the outside of the drive section, and the tilting A predetermined rotation axis is disposed in the vicinity of the tooth portion in a direction parallel to the axis, and is rotatably disposed about the rotation axis and meshed with the tooth portion, and a predetermined rotation axis is interposed therebetween. One wheel drive A pinion gear rotationally driven by a source, and a member whose longitudinal direction is oriented at right angles to the tilting shaft and the rotating shaft, and rotatably supporting one end of the tilting shaft and one end of the rotating shaft. A first base frame and a member whose longitudinal direction is oriented at right angles to the tilting axis and the rotation axis, and rotatably supports the other end of the tilting axis and the other end of the rotation axis. A second base frame, each of the first and second base frames having a plurality of flat portions parallel or perpendicular to the tilt axis and the rotation axis, and at right angles to the tilt axis and the rotation axis The flat members are formed into a shape in which the flat portions intersect with each other at a plurality of continuous corners, and the plurality of flat portions have a predetermined size exceeding the distance between the tilting axis and the rotation axis in the vertical direction of the backrest. And At least one plane portion parallel to the motion axis and the rotation axis, and another plane portion perpendicular to the tilt axis and the rotation axis, the one plane portion being disposed along the backrest up-down direction, And the first flat surface portion and the second flat surface portion are arranged to directly intersect at a predetermined corner portion, with respect to the size of the direction in which the first flat surface portion is parallel to the tilting axis and the rotation axis The size of the direction perpendicular to the continuous direction of the predetermined corner portion in the other flat portion is made larger, and the first and second base frames are It connects by fixing a connecting rod in a plane part.

  As described above, according to the disclosure of the present invention, with respect to the drive unit for moving the treatment element, both ends of the tilt shaft supporting the drive unit and the rotation shaft related to the tilt of the drive unit are supported by two independent base frames. In each base frame, the size of the direction perpendicular to the tilt axis and the rotation axis and corresponding to the back and forth direction of the backrest is larger than the size of the direction parallel to the tilt axis and the rotation axis. By making the base frame hard to deform against the force applied in a direction perpendicular to the tilting axis or the rotation axis, a large reaction force is applied to the treatment element to move the drive unit relatively, and the tilt axis from the drive unit side Even if a force is applied to the base frame to change the relative position of the shaft and the rotational axis, the positional relationship between the tilt axis and the rotational axis on the base frame is maintained without deformation of the base frame. The connection and interlocking of each mechanical part can be maintained in an appropriate state, and an abnormal force can not be applied to each part to prevent the parts from being damaged, and the tilting of the drive unit for adjusting the treatment element position can be surely performed. To improve the reliability and stability of the massage machine operation. In particular, since the first and second base frames are connected by fixing the connecting rod at their respective flat portions, the connecting rod is firmly fixed to the flat portion on the non-flexible side. Strength is improved.

  In addition, the mechanical unit of the massage machine according to the disclosure of the present invention has a substantially box-like housing that externally encloses an internal mechanism portion that operates the massaging device, as needed. Among the shell members forming the housing, the member closest to the first base frame is formed by integrally combining a plurality of shell members in a direction parallel to the tilting shaft and the rotation shaft. An end portion facing the first base frame is formed as a continuous side portion oriented in a direction perpendicular to the tilting axis and the rotation axis, and of the shell members forming the housing, the second base frame The closest member is one in which the end facing the second base frame is formed as a continuous side facing in a direction perpendicular to the tilting axis and the axis of rotation.

  Thus, according to the disclosure of the present invention, the outer peripheral housing of the drive unit is formed of a combination of a plurality of outer shell members, and each outer shell member is integrally connected in a direction parallel to the tilting axis and the rotation axis Of the end facing the base frame in the shell closest to the first base frame and the end facing the base frame in the shell closest to the second base frame, respectively And side surfaces that are continuous in a direction perpendicular to the rotation axis, and these side portions are less likely to be deformed even when receiving a force in a direction perpendicular to the rotation axis and the tilting axis. The reaction force from the child side is applied to the housing as stress in the direction perpendicular to the tilt axis and the rotation axis, and the side surface portion of the outer shell member continues in parallel with the direction of force even when trying to deform the housing itself. That In addition to maintaining the shape and suppressing the deformation of the other shell members, the connecting surface of each shell member becomes parallel to the direction of the force, and excess shell members are formed between adjacent shell members. It is difficult to generate a force that moves close to or pulls away, and it is possible to reliably prevent each connected shell member of the housing from deforming and leading to breakage, and stably perform tilting with a treatment element as a drive unit. You can

  In the mechanical unit of the massage machine according to the disclosure of the present invention, as required, the teeth face a portion near one side face of the housing facing the first base frame and a second base frame It is fixedly disposed at one or both of the other side surface vicinity portions.

  As described above, according to the disclosure of the present invention, the tooth portion is disposed in the vicinity of the side portion facing the base frame of the housing, and the tooth portion receiving the force in the direction perpendicular to the tilting axis and the rotation axis By integrating and supporting the unit, the drive unit can be inclined by the reaction force from the treatment element side, and a force can be relatively applied in a direction perpendicular to the rotation axis from the pinion gear side. Even in the situation, the position of the teeth on the housing does not change with the deformation of the housing side face in the vicinity of the teeth, and the housing is deformed due to the force applied to the teeth leading to breakage. As a result, the positional relationship between the tooth portion and the pinion gear can be maintained, and the tilting of the drive portion based on the transmission of the driving force by the pinion gear and the tooth portion can be appropriately performed.

  In the machine unit of the massage machine according to the present disclosure, the first and second base frames may be bent at a plurality of locations on the outer peripheral portion of the metal flat plate having a predetermined shape, as necessary. It is a molded body to be obtained, and the one flat portion in each of the base frames is formed as the remaining portion of the metal flat plate which is not in the upright state, and the other flat portions in each of the base frames are a plurality of A plurality of erected portions formed as one of the erected portions and including other flat portions are bent so that each of the erected portions and the one flat portion form at least a groove-like cross-sectional shape It is

  Thus, according to the disclosure of the present invention, each base frame is formed by bending a flat metal plate to produce a plurality of erected portions, and is formed to have a grooved cross section in part, and is perpendicular to the tilting axis or the rotation axis. The frame structure gives rigidity to the force applied in the direction, so that even if the drive unit receives a force as the drive unit is tilted or the treatment element operates, each base frame resists bending stress in each base frame. It works as a material, and the deformation of the base frame can be reliably suppressed, and the mechanical unit has a lighter and simpler structure while ensuring that the positional relationship between the tilting axis and the rotating axis on the base frame is not inadvertently changed. Can be done, and the manufacturing cost can be reduced.

  Further, according to need, the mechanical unit of the massage machine according to the disclosure of the present invention is such that the rotary shaft is pivotally supported by a bearing portion disposed on one of the first and second base frames, and the base The first drive source is a motor, and the output shaft of the motor is connected to the speed reduction mechanism to drive the rotary shaft. It is possible that the one motor is supported so as to overlap the other of the base frame with the output shaft in a direction perpendicular to the rotation shaft, and the reduction mechanism unit is connected to the output shaft of the motor. And a worm wheel meshing with the worm, and one or more reduction gears interposed between the worm wheel and the rotary shaft, disposed at a position offset in a direction parallel to the rotary shaft with respect to the worm wheel And the reduction gear mechanism is also located around the end of the rotation shaft while also serving as a bearing for the rotation shaft, and the rotation shaft is transmitted to the rotation shaft from the reduction step portion while the rotation shaft is pivoted Support.

  As described above, according to the disclosure of the present invention, the rotating shaft is supported by the bearing portion and the decelerating mechanism portion on each base frame, and the motor as the driving source is connected to the decelerating mechanism portion. By transmitting the driving force from the motor output shaft to the rotation mechanism via the worm and worm wheel of the reduction mechanism and the reduction step, the reduction ratio can be increased without increasing the size of the worm wheel by increasing the number of stages of reduction. The amount of protrusion of the speed reduction mechanism in each direction perpendicular to the rotation axis, which mainly depends on the size of the worm wheel, can be suppressed, and the protrusion in the machine unit can be reduced. Further, by providing a reduction gear portion and setting a large reduction ratio without increasing the size of the worm wheel, it is possible to generally miniaturize a motor that tends to increase in size as the rated speed decreases. The reduction gear portion is disposed in a direction parallel to the rotation axis which hardly affects the size of the entire machine unit with respect to the worm wheel, thereby securing a large reduction ratio as a reduction gear mechanism portion. This eliminates the need for dimensional expansion, and the overall mechanical unit can be made compact.

  In addition, the mechanical unit of the massage machine according to the disclosure of the present invention may be rotatable on a central axis parallel to the tilting axis, as needed, on the outer portions of the first and second base frames. The roller unit is disposed and rotatably driven by another predetermined drive source, and the drive unit is mounted on and supported by the tilt shaft so as to be relatively rotatable, and the tilt shaft includes the first and second tilt shafts. It is connected to the reduction gear mechanism part disposed on one of the base frames of the second embodiment, and is pivotally supported on a bearing part disposed on the other of the base frames, and passes through the first and second base frames The roller unit is attached to each of both ends and driven by the other drive source attached to the first or second base frame, and serves as a central axis of the roller unit, and the other Drive The source is another motor, and the output shaft of the motor is connected to the reduction mechanism to drive the tilting shaft, and the other motor sets the output shaft in a direction perpendicular to the tilting shaft. Is supported so as to overlap with one of the gears, and the reduction gear mechanism portion is deviated in a direction parallel to the tilting axis with respect to the worm connected with the output shaft of the motor, the worm wheel meshing with the worm, and the worm wheel And one or a plurality of reduction step portions interposed between the worm wheel and the tilting shaft, and the reduction mechanism portion also serves as a bearing for the tilting shaft, and It is positioned between the housing of the drive unit and the other flat portion of one of the base frame, and pivotally supports the tilting shaft end while transmitting rotation from the reduction gear to the tilting shaft, and the back of the massage machine Also The roller unit contacts the pair of guide frames respectively disposed on the left and right inside of the support unit so that the guide frames can travel up and down, and at least the tilting shaft and the drive unit are sandwiched between the guide frames The backrest is supported so as to be movable in the vertical direction.

  As described above, according to the disclosure of the present invention, the roller portion that can rotate around a predetermined central axis is disposed on the outer portion of each base frame, and the tilting shaft that tiltably supports the drive portion is the roller The roller unit is a central unit axis of the unit and can be driven by a drive source to allow the roller unit to rotate and drive the roller unit up and down with respect to a pair of guide frames inside the backrest unit. The tiltable shaft supporting the drive unit forms the central axis of the roller unit while being movable in the vertical direction of the backrest, and a mechanical unit for separately driving the roller unit as it is used for transmitting the driving force from the drive source to the roller unit. It is not necessary to arrange it, and the mechanical unit can be simplified in structure, thereby reducing the cost. The tilting shaft is supported by the bearing and the reduction mechanism on each base frame, and the motor as a drive source is connected to the reduction mechanism, and a worm from the motor output shaft in a direction perpendicular to the tilting axis By transmitting the driving force to the tilting shaft through the gear wheel and the reduction gear, it is possible to increase the reduction ratio without increasing the size of the worm wheel by increasing the number of stages of the reduction gear, mainly to the size of the worm wheel The amount of projection of the speed reduction mechanism in each direction perpendicular to the tilting axis, which depends on the position, can be suppressed, and the number of projecting portions in the machine unit can be reduced. Furthermore, by providing a reduction gear portion and setting a large reduction ratio without causing the worm wheel to be enlarged, it is generally possible to miniaturize a motor that tends to increase in size as the rated speed decreases. The reduction gear portion is disposed in a direction parallel to the tilting axis which hardly affects the size of the entire mechanical unit with respect to the worm wheel, and the reduction gear mechanism itself is also arranged between the other flat portion of the base frame and the driving portion. By being provided around the tilting shaft between them, it is possible to secure a large speed reduction ratio as the speed reduction mechanism portion and not to cause an increase in the size of the machine unit, so that the whole machine unit can be made compact.

  Moreover, the mechanical unit of the massage machine according to the disclosure of the present invention is disposed, as necessary, in the one flat portion of each of the first and second base frames over the entire longitudinal direction of the one flat portion. A guide body projecting from the one flat portion toward the front side of the backrest by a predetermined height, and both ends in the longitudinal direction of the one flat portion in the guide body have rounded curved surface shapes; And the curved surface shaped portion is positioned in the vicinity of the end face of the base frame adjacent to both longitudinal ends of one plane portion.

  As described above, according to the disclosure of the present invention, the guide body is disposed on one flat surface portion of each base unit, and the end surface of the guide body is formed into a curved surface continuous with the end surface of the base frame. By positioning the guide body at the most front side of the backrest in each base frame as a projection from the portion, the back surface of the backrest of the backrest approaches the base frame when the machine unit moves the backrest up and down The guide body intervenes between the skin and the base frame to prevent contact between the skin and the surface of the base frame, thereby protecting the skin and providing the base frame of the user's body through the skin. It is also possible to prevent the user from feeling uncomfortable due to the contact with the base frame. Further, when the curved surface shaped portion of the guide body end portion is disposed in the vicinity of the end face of the base frame, and the skin portion approaches the base frame end face, the curved surface shaped portion of the projecting guide body contacts the skin portion and the base frame The skin can be kept away from the end face and the edge of the skin, and the relative movement between the guide body and the skin can be made smooth when moving up and down. It can prevent the damage with certainty.

It is a perspective view of a massage machine which applied a machine unit concerning one embodiment of the present invention. It is a block diagram of a massage machine which applied a machine unit concerning one embodiment of the present invention. It is a perspective view of the front side of the machine unit concerning one embodiment of the present invention. It is a front view of the machine unit concerning one embodiment of the present invention. It is a left view of a machine unit concerning one embodiment of the present invention. It is a top view of the machine unit concerning one embodiment of the present invention. It is a bottom view of the machine unit concerning one embodiment of the present invention. It is a perspective view of the back side of the machine unit concerning one embodiment of the present invention. It is a partially omitted rear view of the machine unit concerning one embodiment of the present invention. It is positional-relations explanatory drawing of the side edge part of the machine unit which concerns on one Embodiment of this invention, and a guide frame. It is explanatory drawing of the addition state of the force to the rotating shaft in the condition where external force is added to the massaging ball of the machine unit concerning one embodiment of the present invention.

Hereinafter, a mechanical unit of a massage machine according to an embodiment of the present invention will be described based on FIGS. 1 to 11.
In each of the drawings, the machine unit 10 according to the present embodiment is disposed inside the backrest 13 of the chair-type massage machine 1 supporting the seated user, and moves the massaging ball 20 as the treatment element to perform a massage. It is made feasible.

  A massaging machine 1 having a machine unit 10 according to the present embodiment is mounted on a floor surface to stably support the entire chair, a base 11, and a user's heel above the base 11. The seat 12 for supporting the backrest 13, the backrest 13 for supporting the back of the user behind the seat 12, the armrest 14 for supporting the user's elbow and forearm on both the left and right sides of the seat 12, the seat 12 The leg support unit 15 supporting the user's leg on the front side of the operation unit 30, the operation unit 30 for receiving various operation inputs of the user, and the operation related to the massage in the plurality of treatment means mounted including the machine unit 10 And a control unit 40 that performs control based on the content such as input and recording information.

  The base portion 11 integrally mounts and supports the seat portion 12, the backrest portion 13, the armrest portion 14, and the leg support portion 15 which form the respective portions of the chair. Further, the seat portion 12 is attached to the base portion 11 so that the inclination angle of the seat surface can be adjusted, and a massage is performed by the built-in treatment means while supporting the buttocks and thighs of the user on the seat surface. It is a thing. The treatment means of the seat 12 includes a buttock air cell 71 and a thigh air cell 72 which operate by supplying and discharging air. An air pump 70 that operates these air cells by supplying and discharging air is disposed in the space below the seat portion 12.

  The backrest portion 13 has a surface shape adapted to the shape of the person's back and is disposed so that the inclination angle can be adjusted with respect to the base portion 11 and the seat portion 12, and treatment means for performing massage are provided therein It is the composition provided.

  Inside the backrest 13, a mechanical unit 10 in which a pair of left and right massage balls 20 as a treatment element and a drive unit 50 for operating the masster are integrated and the mechanical unit 10 is supported movably in the backrest 13 vertical direction. In addition, a frame-like backrest frame 13a for supporting each part of the backrest from the inside, and a back air cell 73 and a waist air cell 74 operated by the supply and discharge of air by the air pump 70 are respectively disposed. Among these units, the mechanical unit 10, the air cell 73 for the back, and the air cell 74 for the waist serve as treatment means for performing the massage.

  A pair of side wall portions provided with treatment means such as air cells on the inner surface facing the user is provided on both the left and right side portions of the backrest 13 so as to protrude from the user's upper arm etc. You can also let people do massages.

  The backrest frame 13a allows the machine unit 10 to move in the vertical direction of the backrest 13 and supports movement in the other direction between the pair of left and right guide frames 13b, and supports a plurality of lateral frames in the lateral direction. It passes over and is connected integrally, and it is set as a substantially ladder-like frame structure.

  The guide frame 13b has a substantially U-shaped cross-sectional shape and has a longitudinal shape along the surface of the backrest 13 fitted to a person's back shape, and a pair of the guide frames 13b are respectively disposed on the left and right inside the backrest. Configuration. The mechanical unit 10 is disposed so as to be movable along the guide frame 13b in a configuration in which the guide frame 13b forms a pair. A resin-made rack 13 c is disposed on the inner periphery of the guide frame 13 b as a length extending in the vertical movement range of the machine unit 10.

  These guide frames 13b allow the mechanical unit 10 to move up and down in the backrest 13 inside the backrest 13, and restrain and support movement in the other direction.

  The mechanical unit 10 includes a pair of left and right kneading balls 20 for giving the user stimulation such as itching and tapping, a pair of right and left kneading ball support arms 21 supporting the kneading balls 20 in a projecting state, and the kneading ball supporting arms 21. A drive unit 50 which sucks the massaging balls 20 through 21 and moves them in response to a massage such as tapping, and a tilt shaft 22 which is disposed in a direction perpendicular to the vertical direction of the backrest and supports the drive unit 50 in a tiltable manner. The tooth portion 54 is formed in the same tooth shape arrangement as the external gear whose center is aligned with the tilting shaft 22 and fixedly disposed on the outside of the drive unit 50, and the tooth portion 54 in a direction parallel to the tilting shaft 22. A rotary shaft 23 disposed in the vicinity, a pinion gear 24 rotatably disposed about the rotary shaft 23 and meshed with the teeth 54, one end of the tilting shaft 22 and one end of the rotary shaft 23 Supportable for rotation First base frame 25, a second base frame 26 rotatably supporting the other end of the tilting shaft 22 and the other end of the rotating shaft 23, and first and second base frames 25, 26, the guide bodies 17 and 18 disposed in a state of being projected toward the front side of the backrest 13 in the predetermined plane portions 25a and 25b and the first and second base frames 25 and 26. The roller portion 27 is provided on the outer side of the guide frame 13b so as to be able to travel up and down.

  The drive unit 50 is attached to a substantially box-like housing 51 surrounding the internal mechanism portion for operating the massaging balls 20 from the outside, and the housing 51, and the massaging massage is applied to the massaging balls 20 based on the control of the control unit 40. A tapping motor 63 for generating a driving force for performing the movement, and a tapping force provided in the housing 51 for generating a driving force for causing the massaging ball 20 to perform a massage on the basis of the control of the control unit 40 A kneading mechanism as the internal mechanism disposed in the housing 64 and moving the kneading balls 20 through the kneading ball support arm 21 based on the driving force from the kneading motor 63 and the tapping motor 64, and It is a structure provided with a striking mechanism (illustration is abbreviate | omitted). In addition, about each motor in the drive part 50, and an internal mechanism, it is a thing similar to what is used for a well-known massage machine, and it abbreviate | omits detailed description.

  The housing 51 is formed by integrally combining a plurality of outer shell members 52, 53 in a direction parallel to the tilting shaft 22 and the rotating shaft 23, and is supported so as to be rotatable relative to the tilting shaft 22. Configuration. As a result, the drive unit 50 including the housing 51 can be tilted relative to the rotation shaft 23 and the first and second base frames 25 and 26.

  Of the shell members forming the housing 51, the shell member 52 closest to the first base frame 25 has an end facing the first base frame 25 perpendicular to the tilting shaft 22 and the rotation shaft 23. It forms as the continuous side part 52a of the direction which becomes. Further, among the shell members forming the housing 51, the shell member 53 closest to the second base frame 26 has an end facing the second base frame 26 relative to the tilting shaft 22 and the rotating shaft 23. It is formed as a continuous side portion 53a oriented at right angles.

  Further, in the housing 51, a portion near the side surface portion 52a of the outer shell member 52 facing the first base frame 25 and a portion near the side surface portion 53a of the outer shell member 53 facing the second base frame 26 54 are fixedly disposed.

  The tooth portion 54 has a plurality of teeth formed in the same tooth shape as the external gear having a predetermined pitch circle whose center coincides with the tilting shaft 22 and is fixedly disposed to the housing 51 and is outside the drive portion 50. Are arranged in the The tooth portion 54 meshes with the pinion gear 24 and tilts the drive portion 50 including the housing 51 by tilting about the tilting shaft 22 as the pinion gear 24 rotates. It is formed as a sufficient number of teeth arrangement which can provide a tilting range which can project beyond the back position of the user when leaning against the backrest 13 to the massaging ball 20 which is integrally tilted with the .

  The pinion gear 24 is a gear disposed rotatably around the rotation shaft 23 and meshed with the teeth 54 on the drive unit 50 side, and the advancing / retraction motor 61 as the one drive source via the rotation shaft 23. It is rotationally driven by the

  The first base frame 25 is a metal member whose longitudinal direction is oriented at right angles to the tilting shaft 22 and the rotating shaft 23, and one end of the tilting shaft 22 and one end of the rotating shaft 23 are respectively rotated. It is something we support as much as possible.

  The second base frame 26 is a metal member whose longitudinal direction is perpendicular to the tilting axis and the rotation axis, and the other end of the tilting axis 22 and the other end of the rotation axis 23 are respectively It supports rotatably.

  In detail, each of the first and second base frames 25 and 26 is formed by bending at a plurality of locations on the outer peripheral portion of the metal flat plate having a predetermined shape, and is obtained as a standing state or the like by bending. A plurality of flat portions parallel or perpendicular to the axis 23 are provided, and the flat portions intersect at a plurality of continuous corners perpendicular to the tilt axis 22 and the rotational axis 23.

  A plurality of flat portions having a predetermined size exceeding the distance between the tilt shaft 22 and the rotation shaft 23 in the vertical direction of the backrest, and one parallel to the tilt shaft 22 and the rotation shaft 23 25a, 26a, and other flat portions 25b, 26b perpendicular to the tilting shaft 22 and the rotating shaft 23, one of the flat portions 25a, 26a being arranged along the backrest vertical direction .

  In each of the base frames 25 and 26, one flat surface 25a, 26a and the other flat surface 25b, 26b are disposed so as to directly intersect with each other at a predetermined corner, and the tilting shaft 22 of one flat surface 25a, 26a With respect to the size of the direction parallel to the rotation axis 23, the size of the direction perpendicular to the continuous direction of the predetermined corner portions in the other flat portions 25b and 26b is made larger. Be done.

  More specifically, one flat portion 25a, 26a in each of the base frames 25, 26 is formed as the remaining portion of the flat metal plate which has not been erected. In addition, the other flat portions 25b and 26b are formed as one of the plurality of upright portions. In addition, a plurality of raised portions including the other flat portions 25b and 26b are bent so that each of the raised portions and one of the flat portions 25a and 26a have at least a groove-shaped cross-sectional shaped portion. Become. The rising portions of the first and second base frames 25 and 26 are formed by bending the corner portions that are bending positions at a direction perpendicular to the tilting shaft 22 and the rotating shaft 23, and the rising portions are also formed. It is perpendicular to the tilting shaft 22 and the rotating shaft 23.

  Among the rising portions, the sizes of the other flat portions 25b, 26b located outside the respective base frames 25, 26 and facing the guide frame 13b as the side ends of the respective base frames 25, 26 are the tilt shaft 22 and It is bent and formed so as to be equal to or larger than the size of one plane portion 25a, 26a in parallel. Thus, the size of the backrest in the front-rear direction corresponding to the rising height of the rising portion is larger than the size of the direction in which the base frames 25 and 26 are parallel to the tilting axis. The other flat portions 25b and 26b of the base frames 25 and 26 are further bent at their end portions to form other flat portions 25c and 26c parallel to the one flat portion 25a and 26a. The speed reduction mechanism 56 or the bearing 55 is fixed to the other flat surface 25c, 26c.

  The first base frame 25 is provided with a speed reduction mechanism 57 connected with one end of the tilting shaft 22 and a bearing 55 supported with one end of the rotating shaft 23.

  In addition, a lifting motor 62 as the other drive source is supported so that the output shaft of the motor overlaps the first base frame 25 with the direction perpendicular to the tilting shaft 22, and the output shaft is a reduction mechanism 57 And can drive the tilting shaft 22. The lifting motor 62 is attached to the first base frame 25 via the speed reduction mechanism 57, and generates driving force for lifting the machine unit 10 based on the control of the control unit 40.

  The reduction mechanism portion 57 is displaced in a direction parallel to the tilting shaft 22 with respect to the worm 57a connected and connected to the output shaft of the elevating motor 62, the worm wheel 57b meshing with the worm 57a, and the worm wheel 57b. It is disposed at a position and has one or a plurality of reduction gear portions 57c interposed between the worm wheel 57b and the tilting shaft 22. Further, the reduction mechanism portion 57 doubles as a bearing for the tilting shaft 22 and is located around the tilting shaft 22 and between the housing 51 of the drive unit 50 and the other flat portion 25 b of the first base frame 25, The end of the tilting shaft 22 is pivotally supported while transmitting the rotation from the reduction gear 57 c to the tilting shaft 22.

  The lifting motor 62 is connected to the reduction mechanism portion 57 on the first base frame 25, and the worm 57 a and the worm wheel 57 b of the reduction mechanism portion 57 are further reduced from the motor output shaft in the direction perpendicular to the tilting shaft 22. By transmitting the driving force to the tilting shaft 22 through the portion 57c, it is possible to increase the reduction ratio without increasing the size of the worm wheel 57b by increasing the number of stages of deceleration, mainly depending on the size of the worm wheel 57b. The amount of protrusion of the speed reduction mechanism portion 57 in each direction perpendicular to the tilting shaft 22 can be suppressed, and the protruding portion in the machine unit 10 can be reduced. Further, by providing the reduction gear 57 c and setting a large reduction ratio without increasing the size of the worm wheel 57 b, it is generally possible to miniaturize the motor which tends to increase in size as the rated rotation decreases. it can. Further, the speed reduction step 57c is disposed in a direction parallel to the tilting shaft 22 which hardly affects the size of the entire machine unit 10 with respect to the worm wheel 57b, and the speed reduction mechanism 57 itself is also the first base. By being provided so as to be efficiently stored around the tilting shaft 22 between the other flat surface portion 25 b of the frame 25 and the drive portion 50, the size reduction of the mechanical unit 10 is ensured while securing a large reduction ratio as the reduction mechanism portion 57. As a result, the mechanical unit 10 as a whole can be made compact.

  The second base frame 26 is provided with a bearing 58 for supporting the other end of the tilting shaft 22 and a reduction mechanism 56 for connecting and supporting the other end of the rotating shaft 23. Ru.

  Further, the advancing and retracting motor 61 as one driving source is supported so that the output shaft of the motor overlaps the second base frame 26 with the direction perpendicular to the rotating shaft 23, and the output shaft is a reduction mechanism portion 56. And the rotary shaft 23 can be driven. The advancing and retracting motor 61 is attached to the second base frame 26 via the speed reduction mechanism 56, and generates a driving force for tilting the driving unit 50 based on the control of the control unit 40.

  The reduction mechanism unit 56 is shifted in a direction parallel to the rotation shaft 23 with respect to the worm 56a connected to the output shaft of the advancing and retracting motor 61, the worm wheel 56b meshing with the worm 56a, and the worm wheel 56b. It is disposed at a position, and has one or more reduction gear 56 c interposed between the worm wheel 56 b and the rotation shaft 23. In addition, the reduction mechanism portion 56 is located around the end of the rotation shaft 23 also serving as a bearing for the rotation shaft 23, and supports the end of the rotation shaft 23 while transmitting rotation from the reduction step 56c to the rotation shaft 23. There is.

  The motor 61 is connected to the reduction mechanism unit 56 on the second base frame 26, and the worm 56a and the worm wheel 56b of the reduction mechanism unit 56 from the motor output shaft in the direction perpendicular to the rotation shaft 23 By transmitting the driving force to the rotary shaft 23 through the 56c, the reduction ratio can be increased without increasing the size of the worm wheel 56b by increasing the number of stages of the reduction, and rotation mainly depends on the size of the worm wheel 56b. The amount of projection of the reduction gear mechanism 56 in each direction perpendicular to the shaft 23 can be suppressed, and the number of projecting portions in the machine unit 10 can be reduced.

  Further, by providing the reduction step portion 56c and setting a large reduction ratio without causing the worm wheel 56b to be enlarged, it is generally possible to miniaturize the motor which tends to increase in size as the rated speed decreases. In addition, the speed reduction step 56c is disposed in a direction parallel to the rotation shaft 23 which hardly affects the size of the entire machine unit 10 with respect to the worm wheel 56b, thereby providing a large speed reduction ratio as the speed reduction step 56c. As a result, the size of the machine unit 10 does not need to be increased while securing the size of the machine unit 10, and the entire machine unit can be made compact.

  With respect to each of the first and second base frames 25 and 26, the tilting shaft 22 has one end connected to the speed reduction mechanism 57 of the first base frame 25 and the other end connected to the second base The bearing portion 58 of the frame 26 is rotatably supported. In addition, the rotary shaft 23 has one end supported by the bearing 55 of the first base frame 25 and the other end connected and supported by the reduction gear mechanism 56 of the second base frame 26. Be done. Thus, the tilting shaft 22 and the rotating shaft 23, and the first and second base frames 25 and 26 are connected in a frame shape.

  In this way, the base frame and each axis are combined and integrated in a frame shape, and the base frame supporting each axis is formed by bending a single metal plate and rigidity is ensured by the erected portion generated by bending. As a result, the structure can be simplified and the weight can be reduced.

  The tilting shaft 22 and the rotating shaft 23, the first and second base frames 25 and 26 are connected in a frame shape, and the tilting shaft 22 is axially connected to the first and second base frames 25 and 26. The drive unit 50 is supported so as to be rotatable in a direction perpendicular to the backrest vertical direction, and the housing 51 of the drive unit 50 is relatively rotatably supported around the tilt shaft 22 so that the drive unit 50 tilts the tilt shaft 22 As the first and second base frames 25 and 26, the mechanism is supported so as to be tiltable.

  The guide bodies 17 and 18 are disposed on the flat portions 25a and 26a of the first and second base frames 25 and 26 over the entire longitudinal direction of the flat portions 25a and 26a, respectively. In a configuration in which the end of a member such as a screw, which is projected from the flat portions 25a and 26a to the front side of the backrest 13 by a predetermined height, projects on the surface of one flat portion 25a and 26a as a kind of cover is there. In addition, the guide bodies 17 and 18 have round flat surface portions 25a and 26a in the longitudinal direction, and base frames adjacent to the longitudinal direction ends of the flat portions 25a and 26a. The curved surface shaped portions 17a, 17b, 18a, 18b are arranged in the vicinity of the end faces 25 and 26, respectively.

  In this way, the guide bodies 17 and 18 disposed in a projecting state on one flat surface 25a and 26a of each base unit 25 and 26 are located on the most front side of the backrest 13 on the respective base frames 25 and 26. ing. As a result, even when the back surface of the skin portion of the backrest 13 approaches the base frames 25 and 26 when the machine unit 10 moves the backrest 13 in the vertical direction, the guide bodies 17 and 18 are the skin Can be interposed between the skin and the base frame 25, 26 to prevent contact between the skin and the base frame surface or the end of the projecting member on the surface, and protect the skin, and the body of the user through the skin. It is also possible to prevent the user from touching the base frames 25 and 26 and to give the user a sense of discomfort based on the contact with the base frame. Further, the curved surface shaped portions 17a, 17b, 18a, 18b of the end portions of the guide bodies 17, 18 are disposed in the vicinity of the end faces of the base frames 25, 26, and when the skin portion approaches the end face of the base frame The curved surface shaped portions 17a, 17b, 18a, 18b of 17, 18 can be in contact with the skin portion so that the skin portion can not be brought close to the end face of the base frame 25, 26 or the edge portion thereof. It is possible to prevent the back surface of the skin from being scratched. The curved surface shaped portions 17a, 17b, 18a, 18b themselves can be in smooth contact with the skin portion, and the skin portion does not get stuck or the like, and the guide bodies 17, 18 and the skin when moving the mechanical unit 10 do not occur. The relative movement with the department can be made smooth.

  In addition, the first and second base frames 25 and 26 are connected by a connecting rod 41, and the connecting rod is one of the flat portions of each of the base frames 25 and 26, the tilting shaft 22 and the rotation axis It is fixed by screws to one plane portion 25a, 26a parallel to 23. As described above, when the first and second base frames are connected by fixing the connecting pipe in the respective one flat portions, they are connected to the other flat portions 25b and 26b which are perpendicular to the tilting shaft 22 and the rotating shaft 23. There is less deflection of the fixed surface as compared with the case where the weir 41 is attached, which can greatly contribute to the improvement in strength by the connecting weir.

  The roller portion 27 is disposed on the outside of each of the first and second base frames 25 and 26 so as to be rotatable around a central axis parallel to the tilting shaft 22 and is rotationally driven by a lifting motor 62. The guide frame 13b travels up and down to move the mechanical unit 10 relative to the guide frame 13b.

  The roller portion 27 is a tilting portion which penetrates the other flat portions 25b and 26b at a predetermined position near the one flat portion 25a and 26a in the other flat portions 25b and 26b located at the side ends of the base frames 25 and 26. The lifting motor 62 on the second base frame 26 is tilted via the speed reduction mechanism 57. The lifting motor 62 is mounted on both ends of the shaft 22 and is integrally rotatable with the tilting shaft 22 which also serves as the central shaft. It is a mechanism which rotates as the shaft 22 is rotationally driven.

  The roller portion 27 is formed as a gear portion 27a formed in the shape of a gear in an end portion near each of the flat portions 25b and 26b in each of the base frames 25 and 26, and the other portion as a cylindrical guide surface portion 27b. It is a structure.

  In addition to the roller portion 27, guide rollers 28 are rotatably attached to other predetermined portions of the other flat portions 25b and 26b of the base frames 25 and 26, respectively.

  In addition to the roller portion 27, guide rollers 28 are rotatably attached to other predetermined portions of the other flat portions 25b and 26b of the base frames 25 and 26, respectively. The guide roller 28 has a gear portion and a guide surface portion similar to the roller portion 27. The guide roller 28 is disposed so as to be independently rotatable on each of the base frames 25 and 26, and each of the base frames 25 and 26. The protrusion amount from the other flat portions 25b and 26b is slightly larger than that of the roller portion 27 (see FIG. 4).

  The roller portions 27 and the guide rollers 28 located on both sides of the mechanical unit 10 are inserted into the pair of guide frames 13b in the backrest portion 13, and the gear portions 27a of the roller portions 27 and the rack 13c of the guide frame 13b. A mechanical unit including the tilting shaft 22 and each of the base frames 25 and 26 by meshing and enabling the guide surface 27b to be in rolling contact with the opposite surface of the surface of the rack 13c on the guide frame 13b. 10 is supported between the guide frames 13b, and the mechanical unit 10 is movable in the vertical direction of the backrest and restricted in movement in the other direction.

  The roller portion 27 rotates with the drive by the lifting motor 62 to change the meshing position with the rack 13 c to travel the guide frame 13 b, and at the same time backrest the entire mechanical unit 10 along the guide frame 13 b The position of the massaging balls 20 in the backrest portion 13 (the part to be massaged by the massaging balls) can be changed up and down by moving the portion 13 up and down.

Depending on the shape and arrangement accuracy of the guide frame 13b, the machine unit 10 and the pair of guide frames 13 in the lateral direction (parallel to the tilting shaft 22 and the rotating shaft 23) within the movable range of the machine unit 10 in the vertical direction of the backrest. Position of the mechanical unit 10 does not become constant, and when the mechanical unit 10 moves up and down, the roller portion 27 and the guide roller 28 of the mechanical unit 10 move relative to the guide frame 13b with a lateral shake. It will be in the state of Even in such a case, the amount of projection of the guide roller 28 on the driven side from the other flat portions 25 b and 26 b is larger than that of the roller 27 on the drive side, so that the roller portion When the guide roller 28 approaches excessively, the inner surface perpendicular to the tilting shaft 22 and the rotating shaft 23 of the guide frame 13b is exclusively in contact with the lateral end surface of the guide roller 28, and the guide frame 13b and the roller portion Contact with the lateral end face of 27 is less likely to occur, and the lateral end face of the roller portion 27 that rotates under the driving force contacts the guide frame 13b to cause frictional resistance, thereby avoiding an increase in drive load. be able to.
In addition, since the driven side is prone to lateral vibration starting from the drive side, stable travel can be performed by restricting the lateral direction only on the driven side.

  Furthermore, the accuracy of the lateral arrangement relationship between the guide frame 13b and the machine unit 10 is borne by the guide roller 28 which may contact with the end face, and the guide roller 28 separately attached to each of the base frames 25 and 26. Can be handled relatively easily to ensure accuracy. Further, the accuracy of the arrangement relationship of the roller portions 27 does not have to be set high. In the case of the roller portion 27 in the present embodiment, in order to obtain a predetermined accuracy in the positional relationship of the roller portion 27, a mechanism related to the support of the roller portion 27 including the tilting shaft 22 and its supporting mechanism Although the pursuit of overall accuracy is indispensable, since the conditions of such accuracy can be relaxed, the manufacturing process can be simplified by that amount, and the cost of manufacturing the machine unit can be reduced.

  The armrests 14 are disposed on both sides of the seat 12, and are formed so as to stably support the user's forearm even when the backrest 13 changes the reclining angle or the seat 12 is tilted. It is a structure. An air cell operated by supply and discharge of air by the air pump 70 may be disposed in the armrest portion 14 so that a massage can be performed on the user's forearm.

  The leg support portion 15 is located on the front side of the seat portion 12, is disposed to be able to tilt around the front end of the seat portion 12 and is adjusted in inclination angle by a built-in actuator (not shown). The leg support portion 15 may also be provided with a treatment means such as a leg air cell operated by the supply and discharge of air by the air pump 70 and a roller for pressing the leg while moving up and down.

  The operation unit 30 includes a large number of switches and a display unit for receiving various operation inputs to the massage machine, is detachably installed on the stand 31 on the side of the massage machine 1, and transmits the operation input related to massage to the control unit 40 It is The position of the stand 31 is adjustable in order to set the position of the switch of the operation unit 30 and the display unit to the optimum position for the user.

  The control unit 40 adjusts the other movable parts of the treatment means and the massage machine to a state corresponding to the user based on the detection result obtained by executing the position detection of the body part of the user in advance. With respect to the treatment means and other movable parts, control for performing appropriate treatment is performed based on the operation of the operation unit 30, the treatment contents recorded and set in advance, and the information of 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 for operating the computer as the control unit 40 by a program stored in the memory or the like. The computer forming the control unit 40 may be a microcomputer integrally formed with a CPU, a memory, a ROM, and the like.

  The main unit of the computer unit forming the control unit 40 is disposed in a predetermined space inside the massage machine 1, such as directly under the seat portion 12, and a portion related to control of various motors of the machine unit 10 is for the unit. The control circuit unit is disposed on the machine unit 10. Then, the control unit 40 is in a state capable of communicating with the operation unit 30, and various actuators for the various motors of the machine unit 10, the seat 12 and the backrest 13 and the leg support 15; Data of a massage which is electrically connected to the air pump 70 respectively and is output by a control signal output based on a position detection program set in advance when detecting the position of each part of the user's body, and when performing a massage The control signal output based on controls the operation of these drive mechanisms.

  In addition, the control unit 40 is also electrically connected to signal output means such as an encoder that outputs displacement amounts of the mechanical unit 10 and each actuator, and the state of the mechanical unit 10, the seat 12, the backrest 13, And while grasping the state such as the inclination of the leg support portion 15, the operation control of the drive means such as the motor and the actuator is performed.

  In addition to this, the control unit 40 controls the mechanical unit 10 to detect the position of each part of the body of the user prior to the massage, as in a known massage machine, and changes the mechanical unit 10 from the initial position in the backrest 13 to the guide frame 13b. In the process of moving it along the user and moving the massaging ball 20 along the user, the change in pressure on the massaging ball 20 from the user side leaning on the backrest 13, the inclination change of the massaging ball 20, etc. Based on the information, the user's shoulder position, spine line, waist position can also be detected.

  Next, the operation state of the mechanical unit of the massage machine according to the present embodiment will be described. As a premise, in a state where the user is seated on the massager 1 and the back is leaned on the backrest 13, the main power of the massager 1 is turned on, the massager 1 is activated, and the user's figure detection The preparation operation before the start of the massage, the adjustment of the inclination angle of the backrest 13 and the like are completed, and the user inputs an operation state instruction such as a massage course, and the control unit 40 massages the user with massage balls. It is assumed that you have already performed or are going to perform a massage from now on.

  In the case of the massage by the massaging balls 20, the control unit 40 operates the elevating motor 62 to rotate each roller unit 27 in accordance with the set content of the massage, and vertically moves the entire mechanical unit 10 with respect to the guide frame 13b. The movement is made, and the vertical position of the massaging ball 20 is adjusted.

  In addition, the control unit 40 operates the motor 61 for advancing and retracting so as to advance and retract the massaging ball 20 with respect to the user by a preset amount or an amount adjusted according to an input instruction by the user. The shaft 23 is rotated together with the pinion gear 24, and the drive unit 50 is tilted with respect to the other part of the mechanical unit 10 based on the meshing between the pinion gear 24 and the tooth portion 54. By tilting the drive unit 50, the integrated massaging balls 20 are advanced and retracted relative to the user, the protrusion amount of the massaging balls 20 to the user side is adjusted, and the massaging balls 20 are positioned at the massage target location.

  After this, or in parallel with the movement of the massaging balls 20, the control unit 40 operates the massaging motor 63 and / or the tapping motor 64 according to the type of massage, and sets the massaging and the setting etc. Make the ball 20 perform the movement corresponding to the massage.

  When the massaging balls 20 protruding toward the user contact the user, the reaction force received by the massaging balls 20 from the user is transmitted to the housing 51 of the drive unit 50 through the massaging ball support arm 21 and the internal mechanism. In response to this force, the housing 51 is supported by the tilting shaft 22 and is also supported by the rotating shaft 23 by the meshing between the teeth 54 on the outside of the housing 51 and the pinion gear 24, thereby maintaining the set position. The reaction force received by the massaging balls 20 acts on the housing 51 as stress directed in a direction perpendicular to the tilting shaft 22 and the rotating shaft 23 and tries to deform the housing 51 itself. 53, each outer shell member 52, 53 is integrally connected in a direction parallel to the tilting shaft 22 and the rotating shaft 23, and the outer shell member 52 closest to the first base frame 25. The direction in which the end facing the base frame 25 and the end facing the base frame 26 in the outer shell member 53 closest to the second base frame 26 are perpendicular to the tilting axis 22 and the rotation axis 23, respectively. The side surface portions 52a, 53a are formed so as to be continuous with the side surface portions 52a, 53a, and the side surface portions 52a, 53a are not easily deformed in the direction perpendicular to the tilting shaft 22 and the rotating shaft 23.

  As a result, even if the reaction force from the massaging ball 20 side is applied to the housing 51 as stress in the direction perpendicular to the tilting shaft 22 and the rotating shaft 23 to deform the housing 51 itself, the force is parallel to the direction of such force. The side surface portions 52a and 53a of the outer shell members 52 and 53 which are continuous with each other maintain their shape, and the deformation of the other portions of the outer shell member can be suppressed. In addition to this, the connecting surface of each outer shell member 52, 53 is parallel to the direction of force, and these outer shell members are brought close to each other or pulled apart excessively between adjacent outer shell members 52, 53. It is possible to reliably prevent deformation of the connected outer shell members 52 and 53 of the housing 51 leading to breakage because such a force is unlikely to occur.

  In addition, the tooth portion 54 is disposed in the vicinity of the side surface portions 52a and 53a in the housing 51, and the tooth portion 54 to which a force is applied is integrated with the side surface portions 52a and 53a and supported. The housing side surface 52a in the vicinity of the tooth portion 54 is also in a situation where the tooth portion 54 applies a relative force in a direction perpendicular to the rotation shaft 23 from the pinion gear 24 side to tilt the drive portion 50 by a reaction force from The position of the teeth 54 on the housing 51 does not change with the deformation of the housing 53a, and the housing 51 can be prevented from being deformed and damaged due to the force applied to the teeth 54. At the same time, the positional relationship between the teeth 54 and the pinion gear 24 is also maintained, and transmission of the driving force by the pinion gear 24 and the teeth 54 is also appropriately performed.

  Furthermore, in a situation where the massaging balls 20 protruding toward the user are in contact with the user, the pinion gear 24 meshes with the teeth 54 to apply a pressing force thereto, while the massaging balls 20 are received against the user Along with the force, the pinion gear 24 simultaneously receives a large reaction force from the tooth portion 54 side. In this way, the rotary shaft 23 to which force is transmitted from the pinion gear 24 is relatively receiving a force to change the position of the drive unit 50 or the tooth portion 54 with respect to the tilt shaft 22 which is the center of tilt. A force to change the positional relationship between the rotary shaft 22 and the rotary shaft 23 is applied to the base frames 25 and 26.

  The force applied to each of the base frames 25 and 26 is a force in a direction perpendicular to the tilting shaft 22 and the rotating shaft 23 and acts as a bending stress on each of the base frames 25 and 26. The structure which is not easily deformed by the force in such a direction, specifically, the direction extending at right angles to one flat portion 25a, 26a parallel to each axis in the arrangement extending between the axes of the tilting axis 22 and the rotating axis 23. Of the other flat portions 25b and 26b disposed over the axis between the tilting shaft 22 and the rotating shaft 23 are larger than one flat portion 25a, 26a. Thus, the deformation of each of the base frames 25 and 26 can be prevented, and the positional relationship between the tilting shaft 22 and the rotating shaft 23 on the base frames 25 and 26 can be maintained.

  For this reason, for example, there is no change such that the connection or interlocking between parts becomes insufficient, such as the meshing state between the tooth portion 54 on the drive unit 50 and the pinion gear 24 on the rotating shaft 23 becomes shallow. Even when 20 contacts the user and receives a large force, no abnormal force is concentrated on each part of the mechanical unit 10, which can prevent the parts from being damaged and affect the user. You can prevent that.

  Then, unnecessary changes in the positional relationship are unlikely to occur in each part of the machine unit 10, so that each mechanism can be accurately moved by the control unit 40, and appropriate massage for the user can be stably and continuously performed, and You can finish the massage at the correct timing.

  As described above, the mechanical unit of the massage machine according to the present embodiment separates each end of the tilt shaft 22 supporting the drive unit 50 and the rotary shaft 23 related to the tilt of the drive unit 50 with respect to the drive unit 50. Two base frames 25 and 26 are supported, and the size of the direction perpendicular to the tilt axis 22 and the rotation axis 23 in each of the base frames 25 and 26 and corresponding to the back and forth direction of the backrest 13 is Because it is made larger than the size of the direction parallel to the tilting shaft 22 and the rotating shaft 23 to make each base frame 25, 26 less likely to be deformed by the force applied in the direction perpendicular to the tilting shaft 22 or the rotating shaft 23, A large reaction force is applied to the massaging balls 20 to move the drive unit 50 relatively, and a force that tries to change the relative positional relationship between the tilt shaft 22 and the rotation shaft 23 from the drive unit 50 side Even when it is added to the frames 25, 26, the positional relationship between the tilting shaft 22 and the rotating shaft 23 on the base frame is maintained without deformation of the base frames 25, 26, and the connection and interlocking of each mechanical component are in an appropriate state. The parts can be prevented from being damaged without applying an abnormal force to the parts, and the tilting of the drive unit 50 for adjusting the position of the treatment element can be reliably performed, and the reliability and operation of the massage machine can be maintained. Stability can be improved.

  In the massager according to the embodiment, each of the first and second base frames 25 and 26 has a groove-like cross-sectional shape by bending a flat metal plate to form an erected portion. The other flat portions 25b, 26b, which are upstanding portions, are formed to be larger than the flat portions 25a, 26a, but the present invention is not limited to this, and the groove-shaped cross-sectional shape portion from the beginning A member having a predetermined cross-sectional shape having at least the above may be used as it is as the base frame. In that case, in addition to metal materials such as shaped steels and extrusion materials, molded articles of synthetic resin materials may be used as long as they have necessary strength.

DESCRIPTION OF SYMBOLS 1 massage machine 10 machine unit 11 base part 12 seat part 13 backrest part 13a backrest part frame 13b guide frame 13c rack 14 armrest part 15 leg support part 17, 18 guide body 17a, 17b curved surface shape portion 18a, 18b curved surface shape portion 20 Bump ball 21 Bump ball support arm 22 Tilting shaft 23 Rotating shaft 24 Pinion gear 25 First base frame 25a One flat portion 25b Other flat portion 25c Flat portion 26 Second base frame 26a Single flat portion 26b Other flat portion 26c flat surface portion 27 roller portion 27a gear portion 27b guide surface portion 28 guide roller 30 operation portion 31 stand 40 control portion 41 connection rod 50 drive portion 51 housing 52, 53 outer shell member 52a, 53a side surface portion 54 tooth portion 55 bearing portion 56 deceleration Mechanism part 56a 56b Worm wheel 56c Reduction gear 57 57 Reduction mechanism 57a Worm 57b Worm wheel 57c Reduction gear 58 Bearing 61 Motor for moving back and forth 62 Lifting motor 63 Striking motor 64 Striking motor 70 Air pump 71 Air cell for the heel 72 Thigh Air Cell 73 Back Air Cell 74 Waist Air Cell

Claims (7)

In a chair-type massage machine comprising at least a seat portion and a back portion, the mechanical unit of the massage machine disposed on the back portion and moving a treatment element to the user to perform a predetermined massage.
A drive unit for operating the treatment element;
A tilt shaft which is disposed in a direction perpendicular to the vertical direction and the front-rear direction of the backrest, and supports the drive unit in a tiltable manner;
A tooth portion having a plurality of teeth formed as the same tooth shape as the external gear having a predetermined pitch circle whose center is aligned with the tilting axis, and fixedly disposed outside the drive portion;
A predetermined rotation axis disposed in the vicinity of the teeth in a direction parallel to the tilting axis;
A pinion gear which is disposed rotatably about the rotation axis and which meshes with the teeth and which is rotationally driven by a predetermined drive source via the rotation axis;
A first base frame which is a member whose longitudinal direction is oriented at a right angle to the tilting axis and the rotation axis, and which rotatably supports one end of the tilting axis and one end of the rotation axis;
And a second base frame rotatably supported at the other end of the tilting shaft and at the other end of the rotating shaft. Equipped
The first and second base frames each have a plurality of flat portions parallel or perpendicular to the tilting axis and the rotation axis, and a plurality of continuous corner portions perpendicular to the tilting axis and the rotation axis In the shape of a member where the flat portions intersect with each other,
The plurality of flat portions have a predetermined size exceeding the distance between the tilt shaft and the rotation shaft in the vertical direction of the backrest, and one flat portion parallel to the tilt shaft and the rotation shaft, and At least one other plane portion perpendicular to the axis and the rotation axis, the one plane portion being disposed along the backrest up-down direction,
The one flat surface portion and the other flat surface portion are arranged to directly intersect at a predetermined corner portion, and the other flat surface portion has another direction with respect to the size of the direction parallel to the tilting axis and the rotation axis. The size of the direction perpendicular to the continuous direction of the predetermined corner in the flat portion is made larger, and the first and second base frames are each formed into one flat portion A mechanical unit of a massage machine characterized by connecting by fixing a connecting rod in. The machine unit of the massage machine according to claim 1.
The drive unit has a substantially box-like housing that externally encloses an internal mechanism portion that operates the massager,
The housing is formed by integrally combining a plurality of shell members in a direction parallel to the tilting axis and the rotation axis;
Among the shell members forming the housing, a member closest to the first base frame has an end facing the first base frame in a continuous side face direction perpendicular to the tilting axis and the rotation axis Formed as
Among the shell members forming the housing, a member closest to the second base frame has an end facing the second base frame in a continuous side face direction perpendicular to the tilting axis and the rotation axis A mechanical unit of a massage machine characterized in that it is formed as. The mechanical unit of the massage machine according to claim 2.
The toothed portion may be fixedly disposed on one or both of one side portion near the first base frame and the other side portion facing the second base frame in the housing. A machine unit of a massage machine. The mechanical unit of the massage machine according to any one of the preceding claims.
Each of the first and second base frames is a molded body obtained by bending a plurality of portions of the outer peripheral portion of a metal flat plate having a predetermined shape as a standing state,
The one flat portion of each of the base frames is formed as a remaining portion of the metal flat plate which has not been erected,
The other flat portion in each of the base frames is formed as one of a plurality of rising portions, and a plurality of rising portions including the other flat portions are the respective rising portions and the one flat portion. A mechanical unit of a massage machine characterized by being bent so as to form at least a groove-like cross-sectional shape. The mechanical unit of the massage machine according to any one of the preceding claims.
The rotary shaft is pivotally supported by a bearing portion disposed in one of the first and second base frames, and is coupled and supported by a reduction mechanism portion disposed in the other of the base frame. ,
The one drive source is one motor, and an output shaft of the motor is connected to the reduction mechanism unit to drive the rotation shaft.
The one motor is supported so as to overlap the other of the base frame with the output shaft oriented perpendicular to the rotation axis,
The reduction gear mechanism portion is disposed at a worm connected to an output shaft of the motor, a worm wheel meshing with the worm, and a position deviated in a direction parallel to the rotation axis with respect to the worm wheel And one or more speed reduction stages interposed between the shaft and the rotation shaft;
A massage characterized in that the reduction gear mechanism portion is located around the end of the rotation shaft while also serving as a bearing of the rotation shaft, and the rotation shaft end portion is supported while transmitting rotation from the reduction gear portion to the rotation shaft. Machine unit of the machine. The mechanical unit of the massage machine according to any one of the preceding claims.
It has a roller portion which is disposed on the outer portion of each of the first and second base frames so as to be rotatable around a central axis parallel to the tilting axis and which is rotationally driven by a predetermined other drive source. ,
The drive unit is mounted on and supported by the tilting shaft so as to be relatively rotatable.
The tilting shaft is connected to a reduction mechanism provided to one of the first and second base frames, and is rotatably supported by a bearing provided to the other of the base frames, The roller portions are respectively attached to both ends of the first and second base frames, and can be driven by the other driving source attached to the first and second base frames. Also serves as the central axis of the roller section,
The other drive source is another motor, and an output shaft of the motor is connected to the reduction mechanism unit to drive the tilting shaft.
The other motor is supported in such a manner that an output shaft is in a direction perpendicular to the tilting axis and is overlapped with one of the base frames.
The reduction gear mechanism portion is disposed at a worm connected to an output shaft of a motor, a worm wheel meshing with the worm, and a position deviated in a direction parallel to the tilting axis with respect to the worm wheel. And one or more speed reduction stages interposed between the tilting shaft and
The reduction gear mechanism is located around the tilting shaft, serving also as the bearing of the tilting shaft, between the housing of the drive unit and another flat surface of one of the base frames, and rotates from the reduction gear to the tilting shaft Support the end of the tilting shaft while transmitting
The roller unit contacts the pair of guide frames respectively disposed on the left and right sides inside the backrest of the massage machine so that each guide frame can travel up and down, and at least the tilting shaft and the drive unit are between the guide frames A mechanical unit of a massage machine characterized by being supported movably in the vertical direction of the backrest in a pinching arrangement. A mechanical unit of a massage machine according to any one of the preceding claims.
It is disposed over the entire longitudinal direction of the one flat portion in the one flat portion of each of the first and second base frames, and protrudes from the one flat portion toward the front side of the backrest by a predetermined height Equipped with a guided body,
Both end portions in the longitudinal direction of the one flat surface portion in the guide body have rounded curved surface shapes, and the curved surface shaped portions are formed in the vicinity of the end face of the base frame adjacent to the longitudinal direction ends of the one flat surface portion. A mechanical unit of a massage machine characterized in that it is arranged to be positioned.

Images