JP2012245256A - Massage mechanism and massage apparatus with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage mechanism pressing and stimulating a user in a complex manner for increasing massage effect, and to provide a massage apparatus with the same.SOLUTION: The massage mechanism 1 has a massage ball for pressing and stimulating the user's body. The massage mechanism includes: an electric motor 2; a rotary table 3 rotatably driven about a first shaft 7 by the electric motor 2; a second shaft 4 rotatably supported at a position eccentric from the first shaft 7 of the rotary table 3 in a manner to be parallel with the first shaft 7; and a massage ball-supporting table 5 rotatably supported on the second shaft 4 and having at least one massage ball M on the upper surface. The massage mechanism further has a motion applying unit 6 for making the massage ball M precess relative to the second shaft 4 with the rotation of the second shaft 4.

Description

  The present invention relates to a massage mechanism that can complicate a pressure stimulus to a user and enhance a massage effect, and a massage device including the massage mechanism.

  Conventionally, various massage mechanisms having a kneading ball that gives a pressing stimulus to a user's body have been proposed. For example, as shown in FIG. 12, a turntable s that is rotated around a support axis n by an electric motor (not shown), and a pair of kneading balls m provided on the turntable s with the central axis n interposed therebetween. A prepared massage mechanism a is known. Such a massage mechanism a is built in, for example, a backrest portion of a chair, and is stimulated when the kneading balls abut on the back of the user.

JP 2006-87846 A

  However, in the massage mechanism a as described above, the kneading balls m revolve around the central axis n in a single plane, so that the movement is simple and the pressing stimulus effect to the user is not sufficient. There is no problem.

  The present invention has been devised in view of the above problems, and a massage mechanism that is useful for increasing the massage effect by complicating the pressing stimulus to the user by complicating the motion of the kneading balls. Its main purpose is to provide a massage device with it.

  Invention of Claim 1 among this invention is a massage mechanism which has a kneading ball which gives a pressing stimulus to a user's body, Comprising: An electric motor, A turntable rotated by the electric motor around the 1st axis, A second shaft that is rotatably supported parallel to the first shaft at a position eccentric from the first shaft of the turntable, and at least one kneading ball that is rotatably supported by the second shaft and is provided on the upper surface. And a motion imparting means for squeezing the kneading balls with respect to the second shaft as the second shaft rotates.

  According to a second aspect of the present invention, the kneading ball support base has a flat mounting surface to which the kneading ball is mounted, and the motion imparting means is attached to the surface perpendicular to the second axis. The massage mechanism according to claim 1, comprising a bearing member that is supported by inclining a surface and a restraining means that prevents the kneading ball support base from rotating around the second axis.

  According to a third aspect of the present invention, the restraining means includes a first receiving part fixed to the rotary base side, a second receiving part fixed to the massaging ball support base side, and the first receiving part. 3. A massage mechanism according to claim 2, further comprising a link member that connects the second receiving portion to each other, wherein the link member and each receiving portion are connected via a spherical bearing in a retaining state. .

  According to a fourth aspect of the present invention, the kneading balls are movable in a direction orthogonal to the mounting surface of the kneading ball support base and are elastically supported by the kneading ball support base through a spring. A massage mechanism according to claim 2 or 3.

  According to a fifth aspect of the present invention, in the massage according to any one of the first to fourth aspects, the kneading balls include a first kneading ball and a second kneading ball that are provided to face each other across the second axis. Mechanism.

  The invention according to claim 6 is the massage mechanism according to claim 5, wherein the first kneading balls have a top surface height from the kneading ball support base larger than a top surface height of the second kneading balls.

  The invention according to claim 7 is the massage mechanism according to any one of claims 1 to 6, wherein the kneading balls include a rotation kneading balls that can rotate with respect to the kneading ball support base.

  The invention according to claim 8 is the massage according to any one of claims 1 to 7, wherein an outer peripheral surface of the kneading ball on the user side includes a substantially hemispherical reference outer peripheral surface that is convex upward. Mechanism.

  The invention according to claim 9 is the massage mechanism according to claim 8, wherein the outer peripheral surface of the kneading ball includes a surface that protrudes at a small height from the reference outer peripheral surface.

A tenth aspect of the present invention is a massage apparatus in which the massage mechanism according to any one of the first to ninth aspects is accommodated.
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In the invention according to claim 11, the massage device includes an inner frame body for fixing the massage mechanism, a pair of vertical frames arranged on both sides of the inner frame body, and a space between the pair of vertical frames and the inner frame. A pair of horizontal frames disposed above and below the frame body, a support fitting that rotatably supports the inner frame body with respect to the vertical frame, and an elastic body that elastically supports the inner frame body and the horizontal frame. The massage device according to claim 10.

  In the massage mechanism of the present invention, the kneading balls move in a pestle shape with respect to the second shaft 4. In other words, a three-dimensional movement is performed while moving while touching like a circle around an axis with a kneading ball. Therefore, the massage mechanism of the present invention can complicate the pressure stimulus to the user by complicating the motion of the kneading balls, and can enhance the massage effect. Moreover, since the kneading ball support base is eccentrically attached to the turntable, a wide pressing area can be obtained.

It is a front view of the massage mechanism of one Embodiment of this invention. It is a top view of FIG. FIG. 2 is a perspective view of FIG. 1. It is a disassembled perspective view of the massage mechanism of FIG. It is sectional drawing of a kneading ball support stand part. (A) thru | or (d) is the schematic explaining a series of rotational motion of a 2nd axis | shaft and a kneading ball support stand. (A) is sectional drawing of other embodiment of a kneading ball, (b) is a disassembled perspective view of the kneading ball of (a). (A) is sectional drawing of other embodiment of a kneading ball, (b) is a disassembled perspective view of the kneading ball of (a). It is a front view of the massage apparatus in which the massage mechanism of this embodiment is accommodated inside. (A) is a front view of a container, (b) is XX sectional drawing of (a). It is the schematic explaining a frame body. It is a schematic perspective view of the conventional massage mechanism.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The massage mechanism 1 of this embodiment is a massage mechanism having a kneading ball that gives a pressing stimulus to the user's body, and is attached to the backrest portion of a chair-type massage device, for example, to massage the user's back and the like. It is preferably used.

  As shown in FIGS. 1 to 4, the massage mechanism 1 includes an electric motor 2, a rotary table 3 that is driven to rotate around the first axis 7 by the electric motor 2, and a bias from the first axis 7 of the rotary table 3. A second shaft 4 provided at the centered position and a kneading ball support base 5 rotatably supported by the second shaft 4 are configured.

  As well shown in FIG. 4, the electric motor 2 is a well-known biaxial motor provided with two rotating shafts CL in the present embodiment. The end portion of the rotating shaft CL forms a screw gear structure in which a screw is cut. In addition, the electric motor 2 is not limited to such an aspect, For example, 1 axis | shaft motor with one rotating shaft CL may be sufficient.

  The turntable 3 is connected to the rotation axis CL of the electric motor 2, and in this embodiment, the turntable 3 is connected to each of the two rotation axes CL. Further, the turntable 3 includes a first gear 8 that is attached to an end portion of the rotating shaft CL and rotates, a first shaft 7 that is fixed to a rotation center of the first gear 8, and the first shaft. 7 and a transmission device 9 that is disposed between the second shaft 4 and transmits the rotational movement of the first gear 8 to the second shaft 4, and an upper cover body 10 that is fixed to the first shaft 7. Consists of.

  In the present embodiment, the first gear 8 is a helical gear, and forms a worm gear mechanism together with the rotating shaft CL of the electric motor 2. In addition, the first gear 8 is rotatably supported and held in, for example, gear cover bodies K1 and K2 that are divided vertically.

  In the present embodiment, one end of the first shaft 7 is fixed to the first gear 8, and the other end protrudes from the upper gear cover body K <b> 1 and is rotatably connected to the transmission device 9.

  Further, in the present embodiment, the transmission device 9 includes a second gear 11a fixed to the first shaft 7 and a third gear 11b meshed with the second gear 11a. It is arranged between the upper gear cover body K1 and the upper cover body 10. The second gear 11a and the third gear 11b have, for example, a spur gear structure, and one end side of the second shaft 4 is fixed to the rotation center of the third gear 11b.

  The upper cover body 10 has a substantially cylindrical shape with an open lower surface, and the first shaft 7 is fixed to the central axis portion of the upper surface 10e of the upper cover body 10 at right angles. Thereby, the rotational motion of the rotational shaft CL of the electric motor 2 is transmitted from the first gear 8 to the first shaft 7 to cause the upper cover body 10 to rotationally move around the first shaft 7.

  The second shaft 4 is provided in parallel with the first shaft, is rotatably supported by the upper cover body 10, and extends through the upper cover body 10. For this reason, even if the rotational motion of the first shaft 7 is transmitted to the second shaft 4 via the transmission device 9, the upper cover body 10 rotates around the second shaft 4 by the rotational motion of the second shaft 4. There is nothing.

  The kneading ball support 5 is provided above the upper cover body 10, and has a kneading ball M and a flat mounting surface 5 e to which the kneading ball M is mounted and serves as a base of the kneading ball support 5. 5a and a moving mechanism 12 that moves the kneading balls M in a direction orthogonal to the mounting surface 5e.

  In this embodiment, the base 5a is formed to include a substantially circular and thick central portion 5a1, and a peripheral portion 5a2 which is provided at the periphery and above the central portion 5a1 and is thinner than the central portion 5a1. In addition, the base 5 is provided with a through hole R penetrating through the central portion 5a1 and a fixing portion 5b that protrudes upward from the mounting surface 5e and fixes the moving mechanism 12 at the approximate center of the central portion 5a1.

  Further, in the present embodiment, the fixing portions 5b have a cylindrical shape and are fixed to the mounting surface 5e so as to face each other with the through hole R interposed therebetween.

  Further, as well shown in FIG. 5, the moving mechanism 12 includes a spring 12a that elastically moves the kneading balls M and a holder 12b that holds the spring 12a in an extendable manner.

  In this embodiment, the spring 12a is a coil spring, and is arranged in a direction orthogonal to the mounting surface 5e. The front end of the spring 12a is supported by the kneading balls M, the rear side is supported by the fixing portion 5b, and further held by the holding tool 12b, so that the kneading balls M are urged forward and held at a certain position of the spring 12a. Yes. Thus, the kneading balls M biased by the spring 12a provide a comfortable pressing force to the user.

  In the present embodiment, the holder 12b has a substantially cylindrical shape, and a first insertion hole 12b1 into which the spring 12a is inserted is provided at the upper end surface, and the fixing portion 5b is provided at the lower end surface. A second insertion hole 12b2 to be inserted is provided. The first insertion hole 12b1 preferably has an inner diameter larger than the outer diameter of the spring 12a and restricts the lateral movement of the spring 12a with respect to the mounting surface 5e. Further, the second insertion hole 12b2 has an inner diameter larger than the outer diameter of the fixing portion 5b, and it is desirable that the fixing portion 5b and the holding tool 12b are securely fixed by a fixing tool 12c such as a screw.

  As shown in FIGS. 3 and 4, the massage mechanism 1 has a motion imparting means 6 for squeezing the kneading balls M with respect to the second shaft 4 as the second shaft 4 rotates. . Such a massage mechanism 1 uses a three-dimensional motion in which the kneading balls M move while touching in a circle around an axis intersecting the second axis, so that the movement of the kneading balls M is complicated and used. The pressure stimulus to the person is complicated. Therefore, the massage mechanism 1 of this embodiment can enhance the massage effect. Moreover, since the attachment surface 5e of the kneading ball support base 5 is eccentrically attached to the turntable 3, a wide pressing area can be obtained.

  The motion imparting means 6 includes a bearing member 13 that supports the mounting surface 5e by tilting it with respect to a surface (virtual surface) N (shown in FIG. 5) orthogonal to the second shaft 4, and around the second shaft 4. And the restraining means 14 for preventing the kneading ball support 5 from rotating.

  As shown in FIGS. 3 to 5, the bearing member 13 includes an eccentric cam 15 fixed to the other end of the second shaft 4, a bearing fixed to the outer peripheral surface 15 </ b> G of the eccentric cam 15, and the like. The bearing piece 16 is inserted into the through hole R. And the end surface 16a of the bearing piece 16 is formed in parallel with the said attachment surface 5e.

  As shown well in FIG. 5, the eccentric cam 15 in this embodiment constitutes a main part of the eccentric cam 15 and has a substantially cylindrical base portion 15a and a lower end surface of the base portion 15a. And the tension | tensile_strength which has the mounting surface 15e which protrudes in parallel with the attachment surface 5e from the outer peripheral surface 15G of the base 15a, and the lower end surface of the bearing piece 16 is mounted in the penetration-like insertion hole 15b in which the 2nd axis | shaft 4 is inserted. And a protruding portion 15c.

  Further, the mounting surface 15e is formed to be inclined in a direction intersecting with the orthogonal surface N. Thereby, the end surface 16a of the bearing piece 16 mounted on the mounting surface 15e and the mounting surface 5e are also formed to be inclined in a direction intersecting with the surface N orthogonal to the second shaft 4.

  As shown in FIGS. 3 and 4, the restraining means 14 includes a first receiving portion 18 fixed to the turntable 3 side, and a second receiving portion 19 fixed to the kneading ball support stand 5 side. The first receiving portion 18 and the second receiving portion 19 are linked to each other, and in the present embodiment, the first receiving portion 18 is provided on the upper surface 10e of the upper cover body 10. Further, the second receiving portion 19 is provided on the lower surface 5i that is the surface opposite to the mounting surface 5e of the base 5a.

  Further, the link member 20 and each of the receiving portions 18 and 19 are connected via a spherical bearing 21 in a state of being prevented from coming off. The link member 20 of the present embodiment is composed of a rod-shaped member having both ends formed in a ball shape, and both ends of the link member 20 are fitted into the spherical bearing 21. Thereby, both ends of the link member 20 are rotatably held, and the distance between the first receiving portion 18 and the second receiving portion 19 is ensured.

  FIGS. 6A to 6D show the rubbing movement of the kneading balls M by the movement applying means 6 configured as described above. 6A to 6D are all shown in a state where the second shaft 4 rotates in parallel with the vertical direction of the paper surface. Moreover, it is represented as a schematic diagram in which each member is partially discarded so that the pestle movement of the kneading balls M can be easily understood.

  FIG. 6A shows a reference state in which the height L1 from the upper cover body 10 of the kneading balls M is the shortest. In this reference state, the mounting surface 5e is inclined from the upper right to the lower left of the paper surface. . The restraining means 14 restrains rotation of the kneading balls M around the second shaft 4 together with the kneading ball support 5.

  Then, when the second shaft 4 rotates 90 degrees counterclockwise from the reference state, as shown in FIG. 6B, the mounting surface 5e is inclined from the back to the front of the paper as the bearing member 13 rotates. become. At this time, as the bearing member 13 rotates, the height L1 becomes higher than that in the reference state, and the restraining means 14 causes the first receiving portion 18 and the second receiving portion 19 in the direction of the upper surface 10e. The distance L2 (not shown) is smaller than that in the state of FIG. Then, when the second shaft 4 rotates 180 degrees counterclockwise from the reference state, the mounting surface 5e is inclined from the upper left to the lower right of the paper surface as shown in FIG. 6C. At this time, the height L1 is the highest and the distance L2 is further reduced by the restraining means 14. Further, when the second shaft 4 rotates 270 degrees counterclockwise from the reference state, the mounting surface 5e is inclined from the front side to the back side as shown in FIG. 6D. At this time, the height L1 becomes lower than that in the state of FIG. 6C, and the distance L2 becomes larger than that in the state of FIG.

  Thus, when the 2nd axis | shaft 4 rotates 360 degree | times, the said height L1 from the upper cover body 10 and the distance L2 of the upper surface 10e direction change periodically. Further, as the direction of the inclination of the mounting surface 5 e of the kneading ball support 5 changes periodically, the direction of the kneading balls M also changes periodically with respect to the second shaft 4. Therefore, the kneading balls M of the present embodiment perform a pestle motion with respect to the second shaft 4 as the second shaft 4 rotates. Since the upper surface 10e of the upper cover body 10 rotates around the first shaft 7 as described above, the kneading balls M rotate relative to the rotation of the first shaft 7.

  In addition, the kneading balls M are composed of two kneading balls M1 and M2 (hereinafter sometimes referred to as “first kneading balls M1” and “second kneading balls M2”) in the present embodiment. It is provided so as to face each other. Thereby, the user can receive a massage effect in a wide region.

  Further, the two kneading balls M1 and M2 are preferably different in size. Such kneading balls M1 and M2 can increase and decrease the stimulation to the user, and can further enhance the massage effect.

  Further, as shown in FIG. 1, in order to further exert the above-described action, the upper surface height h1 of the first massaging balls M1 from the massaging ball support 5 is higher than the upper surface height h2 of the second massaging balls M2. It is desirable that the Thereby, the intensity | strength can be further added to the irritation | stimulation with respect to a user, and the massage effect can be heightened further. As a result of various experiments, it was found that the difference in the upper surface height (h1-h2) is preferably 3 mm or more, more preferably 5 mm or more, and preferably 15 mm or less, more preferably 12 mm or less. did.

  Further, the first kneading balls M1 have a smooth substantially hemispherical reference outer circumferential surface Ma1 in which the user-side outer circumferential surface Ma of the first kneading balls M1 is convex upward (that is, the user side). It is desirable to include a surface Ma2 that protrudes at a small height from the reference outer peripheral surface Ma1. The kneading balls M on which such a hump surface Ma2 is formed can locally increase the pressing force and further enhance the massage effect. As a more preferred embodiment, it is desirable that the hump surface Ma2 is formed at an eccentric position shifted from the top of the first kneading ball M1. Thereby, a pressing stimulus can be given to a user with two places, hump surface Ma2, and the top part of the 1st kneading ball M1.

  Further, it is desirable that a heat generating device (not shown) is provided inside the kneading balls M. Such a kneading ball M is useful for exerting a thermal effect and further enhancing the massage effect. As the heat generating device, for example, a known electric heater that irradiates far infrared rays is desirable.

  The kneading balls M may be provided on the kneading balls support 5 as the rotation kneading balls Mx that can rotate with respect to the kneading balls support 5. Such a kneading ball M can further exert a pressing effect. In the present embodiment, the rotation kneading balls Mx are formed on the first kneading balls M1.

  As shown in FIGS. 7A and 7B, the rotation kneading balls Mx are, for example, formed in a dome shape and more than the kneading ball inner cover 24 and the fir ball inner cover 24 attached to the holder 12b. A kneading ball outer cover 25 that is small and has a dome shape with an open bottom and is arranged on the outer peripheral surface 24e of the kneading ball inner cover 24 to press and stimulate the user, and the kneading ball outer cover 25 and the kneading ball inner cover 24, Is configured to include a bearing mechanism 26 that rotatably supports the shaft. The kneading ball inner cover 24 includes a circumferential upper recessed portion 24a in which a substantially central portion in the height direction is recessed inward along the circumference, and a top recessed portion 24b in which the top portion of the kneading ball inner cover 24 is recessed inward. Have. Further, the kneading ball outer cover 25 has a protruding portion 25a extending from the top to the inside in a small length, and a small peripheral edge portion 25b extending from the top of the dome-shaped portion to the inside by a small length. Yes. The bearing mechanism 26 includes a well-known bearing 26a fixed to the top recess 24b, and a retaining piece 26b for retaining the bearing 26a from the top recess 24b. And while the protrusion part 25a is connected to the inner peripheral surface of the bearing 26a via the retaining piece 26b, and the small peripheral edge part 25b is fitted into the circumferentially recessed part 24a, the kneading ball outer cover 25 is The kneading ball inner cover 24 can rotate smoothly and is prevented from coming off. Accordingly, the first massaging balls M1 can rotate with respect to the massaging ball support 5.

  Further, as shown in FIGS. 8A and 8B, the rotation kneading balls Mx have a spherical ball member 27 provided between the kneading ball inner cover 24 and the kneading ball outer cover 25. It doesn't matter. In such an aspect, the ball member 27 is rotatably held by the top recess 24b and the protrusion 25a, so that the kneading ball outer cover 25 rotates smoothly with respect to the kneading ball inner cover 24. .

  Next, the massage apparatus 31 which accommodated such a massage mechanism 1 inside is demonstrated. FIG. 9 shows an embodiment in which the massage mechanism 1 is accommodated in a chair-type massage device 32.

  The chair-type massage device 32 is mounted on a seat surface portion 33 on which a user sits, a backrest portion 34 that extends upward from the seat surface portion 33 and supports the user's back, and a floor surface F that extends downward from the seat surface portion 33. And a pedestal 35 to be placed. In addition, the chair-type massage device 32 of the present embodiment is provided with a handrail U used by the user and a footrest V.

  The backrest portion 34 includes, for example, a frame body 34a framed by a thin steel material having a square cross section and a housing body P attached to the frame body 34a and housing the massage mechanism 1 therein. .

  The frame body 34a includes a substantially square-shaped outer frame body W1 that forms an outline of the equal backrest portion 34, two vertical frames W2 that are arranged on the inner side of the outer frame body W1, and extend vertically. Two horizontal frames W3 that are arranged inside the two vertical frames W2 and extend to the left and right, and an inner frame body W4 that is arranged inside the horizontal frame W3 and that is substantially square-shaped. . The backrest 34 is covered around the outer frame W1 with a mat member having cushioning properties for protecting the user, a protective cloth for protecting the mat member, and the like (not shown).

  As shown in FIGS. 10A and 10B, the container P is made of, for example, a steel plate material, and has a concave portion P1 having a recessed central portion and a peripheral edge of the concave portion P1 having a certain width. And the peripheral edge portion P2 formed. And the peripheral part P2 of the container P and the inner frame W4 are contacted, and the container P is fixed to the frame 34a.

  In addition, a moving device 36 that moves the massage mechanism 1 up and down relative to the back of the user is provided in the recess P1 of the container P. The moving device 36 is attached with the massage mechanism 1, for example, a rectangular moving plate T, a guide G for positioning and holding the moving plate T, and a driving device D for driving the moving plate T along the guide G. Consists of.

  The configurations of the guide G and the driving device D of the present embodiment are not particularly limited, and may be of a known structure. For example, the guide G is attached to the concave portion P1 and is formed of a substantially vertically long flat plate, and one vertically long side on the moving plate T side is formed in a jagged shape in which a substantially triangular convex body G1 is continuous. Further, the drive device D has, for example, a gear structure that has a gear structure that is fitted to the convex body G1 and whose rotation shaft is pivotally attached to the moving plate T, and an electric motor D2 that rotates the gear body D1. Consists of. Therefore, by driving the electric motor 2, the gear body D1 rotates, the moving plate T moves along the guide G, and the massage mechanism 1 moves up and down in the recess P1.

  As shown in FIG. 11, in the frame body 34 a of this embodiment, the vertical frame W <b> 2 and the inner frame body W <b> 4 are connected by a fulcrum metal 38. As a result, the inner frame W4 can be tilted back and forth with respect to the vertical frame W3 with the fulcrum bracket 38 as a fulcrum, and the user can adjust the pressing force of the kneading balls M while maintaining the desired rearward tilt angle. can do. Further, the upper horizontal frame W3 and the inner frame W4 are coupled by being urged toward the user side by an elastic body 37 such as a rubber band. As a result, the kneading balls M are cushioned to further enhance the massage effect, and when the pressing force of the user disappears, the inner frame W4 is returned to the initial position. Note that the vertical frame W2 of the present embodiment is provided with, for example, a folded portion where the user's back side is folded back toward the inner frame body W4, and the lower side of the inner frame body W4 corresponds to the folded portion of the vertical frame W2. In contact therewith, an excessive backward tilt of the inner frame body W4 is suppressed. In order to further enhance the massage effect, it is desirable that the inner frame body W4 be inclined about 10 degrees with respect to the vertical frame W2. In addition, the arrangement position of the support fitting 38 and the shapes of the vertical frame W2 and the horizontal frame W3 are variously set so as to maintain this angle.

  Also, as shown in FIG. 9, it is desirable that an elastic member 39 such as a rubber band is disposed from the upper horizontal frame W3 to the lower horizontal frame W3 of the container P, for example. Such an elastic member 39 suppresses the covering cloth disposed on the front surface of the kneading balls M from being wrapped around the kneading balls M of the massage mechanism 1. For this reason, it is desirable that the elastic member 39 is provided between the two kneading ball support bases 5 and on the back side of the user of the electric motor 2.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications.

DESCRIPTION OF SYMBOLS 1 Massage mechanism 2 Electric motor 3 Turntable 4 The 2nd axis | shaft 5 The kneading ball support stand 6 The motion provision means 7 The 1st axis | shaft M The kneading ball

Claims (11)

A massage mechanism having a kneading ball that gives a pressing stimulus to the user's body,
An electric motor,
A turntable that is driven to rotate about a first axis by the electric motor;
A second shaft supported rotatably and parallel to the first shaft at a position eccentric from the first shaft of the turntable;
And a rubbing ball support that is rotatably supported by the second shaft and has at least one rubbing ball on the upper surface,
A massaging mechanism characterized by having a motion imparting means for squeezing the kneading balls with respect to the second axis as the second axis rotates. The kneading ball support base has a flat mounting surface on which the kneading balls are mounted,
The movement imparting means includes a bearing member that supports the mounting surface inclined with respect to a surface orthogonal to the second axis;
The massaging mechanism according to claim 1, further comprising restraining means for preventing the kneading ball support base from rotating around the second axis. The restraining means includes a first receiving part fixed to the rotary base side, a second receiving part fixed to the massaging ball support base side, and a space between the first receiving part and the second receiving part. A link member to be connected,
The massage mechanism according to claim 2, wherein the link member and each of the receiving portions are coupled to each other via a spherical bearing in a retaining state.   The massage according to claim 2 or 3, wherein the kneading balls are movable in a direction orthogonal to the mounting surface of the kneading ball support base and are elastically supported by the kneading ball support base through a spring. mechanism.   The massage mechanism according to any one of claims 1 to 4, wherein the kneading balls include a first kneading ball and a second kneading ball that are provided to face each other across the second axis.   The massage mechanism according to claim 5, wherein the first kneading balls have a top surface height from the kneading ball support base larger than a top surface height of the second kneading balls.   The massage mechanism according to any one of claims 1 to 6, wherein the kneading balls include a rotation kneading balls that can rotate with respect to the kneading ball support base.   The massage mechanism according to any one of claims 1 to 7, wherein an outer peripheral surface on the user side of the kneading balls includes a substantially hemispherical reference outer peripheral surface that is convex upward.   The massage mechanism according to claim 8, wherein the outer peripheral surface of the kneading ball includes a surface that protrudes at a small height from the reference outer peripheral surface.   The massage apparatus which accommodated the massage mechanism in any one of Claims 1 thru | or 9 inside.   The massage device includes an inner frame body for fixing a massage mechanism, a pair of vertical frames disposed on both sides of the inner frame body, and a pair disposed between the pair of vertical frames and above and below the inner frame body. The massage apparatus according to claim 10, further comprising: a horizontal frame; a support fitting that rotatably supports the inner frame with respect to the vertical frame; and an elastic body that elastically supports the inner frame and the horizontal frame.

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