JP2007252669A - Massaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massaging device by which the generation of noise can be reduced in a speed reduction mechanism. <P>SOLUTION: In the massaging device having a massaging device body as a driving section and a massaging section, the massaging section has a base plate having flexibility and a plurality of protrusions arranged by protruding in a direction of crossing to the face of the base plate, and a frame body holding the peripheral fringe of the base plate with its positional relationship to the massaging device body substantially fixed and a reciprocally driving means 12 flexing the base plate in up and down directions are arranged in the massaging device body. The reciprocally driving means 12 has a motor 13 for driving, a belt 22 stretched between a driving side gear 20 of the motor shaft 13A and a first driven gear 21, a gear type speed reduction mechanism 14, and a crank mechanism 15. Further, the generation of noise can be reduced by the belt 22 flexing to elastically deform when massaging. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a massage device used for scalp massage, squeeze out washing and the like during hair washing.

Conventionally, in this type of massage apparatus having a drive unit and a treatment unit operated by the drive unit, the treatment unit is formed on a plate-like substrate made of a flexible material and on the surface of the substrate. And a plurality of protrusions provided so as to protrude in a direction intersecting the frame, and the frame holding the peripheral edge of the substrate of the treatment unit in a state in which the positional relationship with respect to the drive unit is substantially fixed to the drive unit And a reciprocating drive means for bending the substrate in a direction intersecting the surface of the substrate. The center portion of the substrate is bent in a direction intersecting the surface of the substrate by the reciprocating drive means. As a result, it is known that the plurality of protrusions are repeatedly opened and closed. In this massage apparatus, a drive motor is provided as the drive unit, and a reciprocating drive means is formed by providing a crank mechanism on the motor shaft of the motor via a speed reduction mechanism.
JP 2006-34941 A

  In the prior art, when massaging the scalp during shampooing or squeezing out and washing the scalp relatively strongly against the scalp, the pressing force is applied from the motor side via the reciprocating drive means. There is a risk of transmission as a variable resistance to the transmission force. That is, when the connecting rod attached to the crank mechanism is pressed down with the projection of the treatment portion pressed against the scalp relatively strongly, the pressing force becomes a resistance force that reduces the rotation speed of the crank mechanism, When the connecting rod is pulled up, the pressing force does not become a resistance force, so the resistance force becomes variable. As a result, there is a possibility that substantially periodic noise is generated inside the speed reduction mechanism due to the resistance. Such almost periodic noise is most frequently generated in the primary reduction portion where the gear attached to the rotation shaft of the motor and the gear of the reduction mechanism mesh with each other. This is because the rotation speed of the motor is the fastest in the power transmission path, decelerated by the primary decelerating unit, and further decelerated by the final decelerating unit. Even if the rotational speed of the final speed reducing unit fluctuates approximately periodically due to a large resistance force, the amount of fluctuation is small, but the primary speed reducing part has a large speed fluctuation, and in this primary speed reducing part, This is because the largest stress is variably and almost periodically applied to the meshing gear. And since such a massage apparatus is used with the head close | similar to an ear, there existed a problem that it was easy to feel noisy when noise generate | occur | produced.

  According to the present invention, in a massage device that transmits the rotational force of a motor to a reciprocating drive means via a speed reduction mechanism and repeatedly opens and closes a plurality of protrusions by the reciprocating drive means, the protrusions are pressed against the scalp relatively strongly. Therefore, an object of the present invention is to provide a massage device that can reduce noise generated in the speed reduction mechanism even when the force becomes a variable resistance force to the transmission force from the motor side. .

  According to a first aspect of the present invention, there is provided a massage device having a drive unit and a treatment unit operated by the drive unit, wherein the treatment unit is formed on a plate-like substrate made of a flexible material, and on the surface of the substrate. And a plurality of projections provided so as to protrude in a direction intersecting with each other, and a frame that holds the peripheral edge of the substrate of the treatment portion on the drive portion side in a state in which the positional relationship with the drive portion is substantially fixed. A massage device in which a reciprocating drive means for bending the substrate in a direction intersecting the surface of the substrate is connected to the drive unit, the reciprocating drive means comprising: a driving motor; A speed reduction mechanism having a motor shaft as an input side; a crank mechanism having one side connected to the output side of the speed reduction mechanism and the other side connected to the substrate; and belt transmission means interposed in the speed reduction mechanism. The A massage device according to Rukoto features.

  The invention according to claim 2 is the massage device according to claim 1, wherein the belt transmission means provided with a toothed belt is interposed in a reduction gear train of the reduction mechanism.

  Furthermore, the invention according to claim 3 is characterized in that the belt transmission means is provided between the motor and the speed reduction mechanism, and the primary speed reduction is performed by interposing the belt transmission means. Device.

  According to the first aspect of the present invention, when a resistance force is generated so as to prevent the substrate from moving up and down, the resistance force is directly transmitted to the motor side via the gear-type reduction mechanism. As the belt is bent and elastically deformed so as not to occur, the stress due to the resistance force is absorbed and the generation of noise can be reduced.

  According to the invention of claim 2, there is no slip or the like with respect to the reduction gear train, and the transmission efficiency can be improved.

  According to the third aspect of the present invention, the soft belt transmission means is interposed between the motor that performs the primary reduction and the reduction mechanism, so that the stress caused by the substantially periodic rotational speed fluctuation becomes the largest and the noise is the highest. It is possible to reduce noise at places where it is likely to occur.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention.

  1 to 8 show a first embodiment. 1 is a massage device, and this massage device 1 has a massage device body 2 as a drive unit and a treatment unit 3 that is detachably provided on the lower side thereof. The treatment unit 3 includes a substrate 4 and three types of protrusions 5, 6, and 7 integrally provided on the lower surface of the substrate 4 so as to protrude downward from the lower surface. Yes. The substrate 4 has an elliptical shape in plan view and is formed of a soft synthetic resin having flexibility. And the edge 4A of this board | substrate 4 is being substantially fixed to the lower edge side of the said massage apparatus main body 2. FIG. The term “substantially fixed” here refers to fixing or allowing some movement and fixing, and in this embodiment, the edge 4A of the substrate 4 is formed along the lower surface of the massage device body 2. By being fitted to a fixing frame 8 made of a groove, the both are detachably connected over the entire circumference.

  A bottom plate 9 having an elliptical shape in plan view is fixed to the lower part of the massage apparatus main body 2, and a circular window hole 10 penetrating in the vertical direction is formed at the center of the bottom plate 9. A cover 11 that covers the hole 10 and can be expanded and contracted is provided. The cover 11 is provided so as to seal the window hole 10 with a flexible bellows-like plate material such as rubber, synthetic rubber, or soft synthetic resin. And inside the said massage apparatus main body 2, the reciprocating drive means 12 which reciprocates the center part of the said board | substrate 4 to an up-down direction is provided. The reciprocating drive means 12 includes a drive motor 13 as a drive source provided on the bottom plate 9, a crank mechanism 15 connected to the motor 13 via a gear-type reduction mechanism 14 serving as a reduction mechanism, One side 16A is pivotably connected to the eccentric shaft 15A of the crank mechanism 15, and the other side 16B is lifted and lowered like a link bar connected to the substantially center of the upper surface of the substrate 4 so as to be raised and lowered. Thus, a connecting rod member 16 that reciprocates is provided. In addition, a connection relay member 17 is integrally provided at substantially the center of the cover body 11. The connection relay member 17 connects the other side of the connecting rod member 16 to the upper surface side thereof, and is provided with a hook-shaped hook 17A on the lower surface side. The hook 17A is provided on the upper surface of the substrate 4 in the center. The hook receiving portion 4B is detachably connected. Therefore, the connection relay member 17 is configured to reciprocate up and down with the rotation of the motor 13 via the crank mechanism 15. As a result, the position where the hook receiving portion 4B is provided becomes the maximum amplitude portion in the substrate 4 having an amplitude of 2F, and a central axis X is formed in the vertical direction through the hook receiving portion 4B and the connection relay member 17. Is done. In addition, a battery 18 for the motor 13 is provided inside the massage device body 2, and a switch 19 for the motor 13 is provided on the upper surface of the massage device body 2. .

  As shown in FIGS. 4 to 6, between the drive side gear 20 fixed to the motor shaft 13A of the motor 13 and the first driven side gear 21 of the gear type reduction mechanism 14, rubber or A synthetic rubber belt 22 is stretched over and an inner peripheral surface of the belt 22 is continuously formed with tooth portions 23 that can mesh with the driving gear 20 and the first driven gear 21. Thus, the belt 22 is a toothed belt. The first driven gear 21 is attached so as to be rotatable around the rotation shaft 24. Further, the number of teeth of the drive side gear 20 is smaller than the number of teeth of the first driven gear 21, and therefore, the rotation of the motor shaft 13 </ b> A of the motor 13 is rotated via the belt 22. And the first driven gear 21 are subjected to primary deceleration. A first small gear 21A having a smaller diameter than that of the first driven gear 21 is formed coaxially and integrally with the first driven gear 21. The first small gear 21A and the second small gear 21A Is engaged with the driven gear 25. The second driven gear 25 is attached so as to be rotatable around the rotation shaft 24A. A second small gear 25A having a smaller diameter than the second driven gear 25 is formed coaxially and integrally with the second driven gear 25. The second small gear 25A and the third small gear 25A Is engaged with the driven gear 26. The third driven gear 26 is attached so as to be rotatable around the rotation shaft 24B. The crank mechanism 15 is fixed coaxially with the third driven gear 26 via a mounting portion 27 that is coaxially and integrally formed with the third driven gear 26. The number of teeth of the driving gear 20 is smaller than the number of teeth of the first driven gear 21, and the number of teeth of the first small gear 21 </ b> A is smaller than the number of teeth of the second driven gear 25. When the number of teeth of the second small gear 25A is less than the number of teeth of the third driven gear 26, the rotational speed of the motor 13 is reduced and the third driven gear 26, and thus This is transmitted to the crank mechanism 15 fixed to the third driven gear 26.

  Further, a bearing 24 </ b> C of the rotating shaft 24 and a through hole 28 </ b> A of the motor shaft 13 </ b> A are provided in a fixed plate 28 fixed to the front surface of the motor 13. The partition plate 29 facing the fixed plate 28 with an interval is provided with bearings 24D and 24E of the rotary shafts 24A and 24B. Further, on one side 16 </ b> A of the connecting rod member 16, a sliding guide path 30 in which the eccentric shaft 15 </ b> A of the crank mechanism 15 can be loosely fitted is formed in a groove shape so as to face the crank mechanism 15. The sliding guide path 30 is formed horizontally horizontally so as to be orthogonal to the axial direction of the rotary shaft 24B and the central axis X, and the length in the horizontally long direction is the center of the crank mechanism 15. It is formed to be the same as or slightly larger than twice (2F) the eccentric distance F from the (rotating shaft 26) to the eccentric shaft 15A. Furthermore, guide members 31 for guiding the connecting rod member 16 in the vertical direction when the connecting rod member 16 moves up and down are provided on the front and rear sides of the connecting rod member 16, that is, on one side and the other side in the axial direction of the rotating shaft 24B. Is provided. In the center of the guide member 31, a hoistway 31A of the connecting rod member 16 is formed by a hole that opens downward, and a groove-like guide path 32 is formed in the vertical direction on one inner wall of the hoistway 31A. A sliding portion 33 that slides in the vertical direction with respect to the guide path 32 protrudes on both sides of the connecting rod member 16 so as to face the sliding portion 33. Accordingly, when the eccentric shaft 15A is rotated by the crank mechanism 15, the eccentric shaft 15A slides on the sliding guide path 30, and the connecting rod member 16 is slid while the sliding portion 33 slides on the guide path 32. Can be raised and lowered repeatedly.

  The treatment unit 3 will be described in detail. The protrusions 5, 6, and 7 are an elliptical virtual outer ring O disposed along the edge 4 </ b> A of the substrate 4 around the central axis X passing through the substantially center of the substrate 4 in the vertical direction, and the inside thereof Are provided on a substantially circular virtual inner ring I arranged in the middle and a substantially circular virtual intermediate ring M arranged between them.

  The first protrusions 5 provided at intervals along the virtual intermediate ring M are provided at a plurality of intervals so as to face each other with the central axis X as a center. In this example, a total of six first protrusions 5 are provided by providing two groups arranged in a circular arc shape so as to be axially symmetric. The first protrusions 5A of the group arranged in three on one side face the first protrusions 5B facing each other in the group arranged on the other side across the central axis X. The opposing surface 34 of the first protrusion 5 facing the central axis X is formed such that the distal end 35 is tapered and the width W gradually increases toward the proximal end 36. By being integrally connected to the substrate 4, the facing surface 34 is formed in a substantially triangular shape from the distal end 35 to the proximal end 36. The opposing surface 34 is receding in a curved convex shape so that the distance L from the central axis X is longer on the distal end 35 side than on the proximal end 36 side. The maximum width of the facing surface 34 in the first protrusion 5 is formed to be approximately the width of a finger, and the maximum height of the facing surface 34 is the length from the tip of the finger to the first joint. It is almost equivalent.

  Further, the first protrusion 5 protrudes in a substantially triangular pyramid shape with side surfaces 37 integrally provided on both the left and right sides of the facing surface 34, and the first protrusion 5 has a plate shape. Therefore, a hollow portion 38 is formed inside the first protrusion 5, and the hollow portion 38 has a thickness substantially the same as the thickness of the substrate 4. An opening 38A is provided in the upper part, and the hollow part 38 communicates with the space above the substrate 4, that is, between the substrate 4 and the bottom plate 9, through the upper opening 38A. On the other hand, a horizontally long communication portion 39 is formed near the tip 35 of the facing surface 34 of the first protrusion 5, and the hollow portion 38 and the first protrusion 5 are formed by the communication portion 39. Communication with the outside.

  Further, the second protrusions 6 provided at intervals from each other along the virtual outer ring O have a columnar shape with a rounded tip, and the height distance H2 from the bottom plate 9 side is the first The protrusion 5 is formed to be always larger than the height distance H1 from the bottom plate 9 side. That is, even if the first protrusion 5 moves up and down because the treatment portion 3 is deformed between the state of FIG. 7 and the state of FIG. 8, the tip of the second protrusion 6 is The first protrusion 5 is formed so as to be always positioned below the lowest position. Further, the flat area per one of the second protrusions 6 is formed smaller than the flat area of the first protrusions 5. A group of a plurality of the second protrusions 6 is arranged on each side of the long axis direction of the substrate 4 having an elliptical plane.

  Further, the third protrusions 7 provided at a distance from each other along the virtual inner ring I have a quadrangular prism shape with a rounded tip, and the height H3 from the substrate 4 is the first height. The protrusion 5 is formed to be smaller than the height H1 ′ from the substrate 4. Further, the plane area per one of the second protrusions 6 is formed smaller than the plane area of the first protrusions 5.

  Next, the effect | action is demonstrated about the said structure. When the scalp S is massaged or squeezed out and washed at the time of shampooing, etc., the user first holds the massage device main body 2 and applies the first and second protrusions 5 and 6 of the treatment portion 3 to each other. The tip is pressed against the scalp S and held by hand. Next, when the switch 19 is closed, power is supplied from the battery 18, whereby the motor 13 is operated and the motor shaft 13 </ b> A is rotated. With this rotation, the crank mechanism 15 connected to the motor shaft 13A via the gear type reduction mechanism 14 rotates, and the connecting rod member connected to the crank mechanism 15 and the eccentric shaft 15A of the crank mechanism 15 is rotated. 16, the rotational motion of the motor shaft 13A is converted into a reciprocating motion, and the connection relay member 17 connected to the connecting rod member 16 reciprocates up and down.

  In the gear type reduction mechanism 14, the rotation of the motor shaft 13 </ b> A of the motor 13 is caused by the driving side gear 20 and a belt that is stretched between the driving side gear 20 and the first driven side gear 21. 22, the first driven gear 21 and the first small gear 21A provided integrally therewith, the second driven gear 25 and the second small gear 25A provided integrally therewith, It can be transmitted to the crank mechanism 15 through the third driven gear 26 and the mounting portion 27 provided integrally therewith. At this time, the rotation of the motor shaft 13A of the motor 13 is primarily decelerated between the driving gear 20 and the first driven gear 21 via the belt 22 and the first small gear 21A and the first gear 21A. Secondary reduction is performed between the second driven gear 25 and the second small gear 25A and the third driven gear 26 is finally reduced. During massage, the massage device body 2 is held so that the protrusions 5, 6 and 7 of the treatment unit 3 are relatively strongly in contact with the scalp S, so that the substrate 4 is prevented from moving up and down. As described above, when a strong and substantially periodic resistance force is generated, the largest stress fluctuates among the portions serving as the primary speed reducing portion, that is, between the drive gear 20, the first driven gear 21 and the belt 22. In addition, since the stress is absorbed by the elastic deformation such as the bending of the belt 22 constituting the primary reduction unit, the noise of the primary reduction unit that is most likely to generate noise is added. Occurrence can be reduced.

  Then, the substrate 4 is bent downward as shown in FIG. 7 so that the hook receiving portion 4B connected to the connection relay member 17, that is, the center of the substrate 4 is the maximum amplitude location. 8 is repeatedly deformed between the upper and lower curved concave states, and the amplitude at the maximum amplitude portion is 2 of the eccentric distance F from the center of the crank mechanism 15 (rotating shaft 24B) to the eccentric shaft 15A. Double (2F). Thereby, the first protrusion 5 is mainly massaged so as to rub the scalp S by repeatedly inclining inwardly with respect to the central axis X or standing up thereafter. it can. Further, the third projection 7 can be massaged by tapping the scalp S by repeatedly abutting and separating from the scalp S due to the bending of the substrate 4.

  The second protrusions 6 are formed near the outer periphery of the substrate 4 and on both sides of the elliptical substrate 4 in the long axis direction, so that even if the substrate 4 is bent, the second protrusion 6 slightly swings. It doesn't move very much. However, although the second protrusion 6 itself that hardly moves hardly performs massage, the distance between the massage device main body 2 and the scalp S is maintained by the second protrusion 6, and the treatment portion 3. Against the scalp S more than necessary is prevented. And if the said treatment part 3 is pressed more strongly than necessary to the scalp S, it will have the said massage apparatus main body 2 and by extension by the reaction accompanying raising / lowering of the said 1st protrusion 5 by the bending of the said board | substrate 4 The user's hand greatly vibrates in the direction of the central axis X, or conversely, the head against which the treatment unit 3 is pressed is greatly shaken, so that the massage by the first protrusion 5 is performed well. Although the interval between the massage device main body 2 and the scalp S is maintained by the second protrusion 6, the treatment unit 3 is not pressed against the scalp S more than necessary, and the massage is performed. Since the user's hand holding the apparatus main body 2 and the head against which the treatment unit 3 is pressed are not greatly shaken, the massage by the first protrusion 5 is favorably performed.

  Then, the substrate 4 is deformed from the state of FIG. 7 to the state of FIG. 8, that is, the substrate 4 is bent from the curved convex state to the curved concave state, so that the first protrusion 5 comes into contact with the scalp S. In this state, the scalp S is massaged so that the scalp S is gripped by the first protrusions 5, and at the same time, not only the scalp S but also hair (not shown) is washed by a hair wash or the like. It will be. At this time, the facing surface 34 of the first protrusion 5 facing the central axis X is formed in a substantially triangular shape with the tip 35 side tapered and the base end 36 side gradually widened. Therefore, in the state of FIG. 7, the portion slightly closer to the base end 36 than the tip 35 of the facing surface 34 softly touches the scalp S, and then gradually becomes narrower as it deforms toward the state of FIG. 8. Since the leading end 35 side comes into contact with the scalp S, it is possible to perform a shiatsu massage that rubs with the fingertip. Further, the first protrusion 5 is receding in a curved convex shape so that the distal end 35 side is separated from the central axis X rather than the base end 36 side, so that the first protrusion 5 is directed inward. When contacting the scalp S by inclining or standing, the facing surface 34 can be slid so as to slide on the scalp S from the base end 36 side to the tip end 35 side. Further, the first protrusions 5 are provided at a plurality of intervals so as to face each other with the central axis line X as a center, so that the first protrusions 5A and 5B are opposed to each other. It can also work. Further, conversely, even when the substrate 4 is deformed from the state of FIG. 8 to the state of FIG. 7, that is, when the substrate 4 is bent from the curved concave state to the curved convex state, the first protrusion 5 A soft massage can be performed.

  Further, when the substrate 4 is repeatedly deformed between the downwardly curved curved convex state shown in FIG. 7 and the upwardly curved curved concave state shown in FIG. The space is repeatedly compressed and restored. As a result, during compression, the air in the space between the substrate 4 and the bottom plate 9 is ejected from the communicating portion 39 toward the scalp S. It can be performed.

  As mentioned above, in the said Example, in the massage apparatus 1 which has the massage apparatus main body 2 as a drive part, and the treatment part 3 which operate | moves by this massage apparatus main body 2, the said treatment part 3 is flexible. A plate-like substrate 4 made of a material having a plurality of protrusions 5, 6, 7 provided to project downward in a direction intersecting the surface of the substrate 4, Integrally, a frame body 8 is provided for holding the peripheral edge 4A of the substrate 4 of the treatment part 3 in a state in which the positional relationship with the massage device main body 2 is substantially fixed. A massage apparatus 1 is provided with a reciprocating drive means 12 for bending the substrate 4 in a vertical direction intersecting with a surface. The reciprocating drive means 12 includes a driving motor 13 and a motor shaft 1 of the motor 13. A gear type reduction mechanism 14 having A as an input side, and a crank mechanism 15 having one side connected to the output side of the gear type reduction mechanism 14 and the other side connected to the substrate 4; When the belt 22 is interposed between the 14 drive-side gears 20 and the first driven-side gear 21, a resistance force is generated in a variable and almost periodic manner so that the elevation of the substrate 4 is hindered. The stress can be absorbed by elastic deformation such as the bending of the belt 22, and the generation of substantially periodic noise can be reduced. Further, even if there is a possibility that the accuracy of the meshing state between the gears is somewhat lowered due to a dimensional error of each gear of the gear type reduction mechanism 14 and noise may be generated, the drive side gear 20 and the second gear Since the belt 22 is interposed between the driven gear 21 and the belt 22, an error is absorbed by elastic deformation of the belt 22, thereby reducing noise. Further, the belt 22 is interposed between the drive side gear 20 and the first driven side gear 21 that constitute the primary speed reduction unit that is most likely to generate noise, thereby making it possible to generate substantially periodic noise. It can be reduced.

  The gear type reduction mechanism 14 includes a driving gear 21, a first small gear 21A, a second driven gear 25, a second small gear 25A, and a third driven gear 26. By interposing a toothed belt 22 having a plurality of teeth 23 formed therein, there is no slip and the like, and transmission efficiency is improved as compared with a belt having a pulley provided in a reduction gear train. be able to.

  As described above, the massage device according to the present invention can be applied to various uses.

It is sectional drawing which shows Example 1 of this invention. It is a perspective view which shows Example 1 of this invention. It is a disassembled perspective view which shows Example 1 of this invention. It is a perspective view around the gear-type reduction mechanism which shows Example 1 of this invention. It is the perspective view which divided the gear type speed-reduction mechanism periphery which shows Example 1 of this invention into 3 parts. It is a disassembled perspective view around the gear-type reduction mechanism that shows the first embodiment of the present invention. It is sectional drawing around the board | substrate of the curve convex state which shows Example 1 of this invention. It is sectional drawing around the board | substrate of the curved concave state which shows Example 1 of this invention.

Explanation of symbols

1 Massage device 2 Massage device body (drive unit)
DESCRIPTION OF SYMBOLS 3 Treatment part 4 Board | substrate 4A Perimeter 5 1st protrusion 6 2nd protrusion 7 3rd protrusion 8 Frame 12 Reciprocating drive means 13 Motor 13A Motor shaft 14 Gear type reduction mechanism 15 Crank mechanism 20 Drive side gear 21 1st Drive side gear 21A First small gear 22 Belt 23 Tooth portion 25 Second driven side gear 25A Second small gear 26 Third driven gear

Claims (3)

In a massage apparatus having a drive unit and a treatment unit operated by the drive unit, the treatment unit protrudes in a direction intersecting a plate-like substrate made of a flexible material and the surface of the substrate. A frame that holds the periphery of the substrate of the treatment unit in a state in which the positional relationship with respect to the drive unit is substantially fixed, and is provided on the drive unit side. A massage device in which a reciprocating drive means for bending the substrate in a direction intersecting the surface of the substrate is connected to the part,
The reciprocating drive means includes a driving motor, a speed reduction mechanism having the motor shaft of the motor as an input side, a crank mechanism having one side connected to the output side of the speed reduction mechanism and the other side connected to the substrate. And a belt transmission means is interposed in the deceleration mechanism.   2. The massage apparatus according to claim 1, wherein the belt transmission means provided with a toothed belt is interposed in a reduction gear train of the reduction mechanism. 2. The massage apparatus according to claim 1, wherein the belt transmission means is provided between the motor and the speed reduction mechanism, and primary deceleration is performed by interposing the belt transmission means.

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