JP2009115305A - Artificial rubbing hand device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strong, compact and inexpensive artificial rubbing hand device superior in a massage feeling not by a rolling and hitting feeling but by a slowly pushing feeling, having the large rubbing effect, having an extremely simple structure, having large durability, and storable in a fist size of a hand, while providing the rubbing touch near to hand rubbing of pushing while hourly changing its place while pushing a meridian point of rubbing operation, by adopting a novel mechanism of rotating at a low speed while rocking a rubbing hand projection. <P>SOLUTION: This artificial rubbing hand device has an internal teeth gear 2, a driving shaft 3, an eccentric boss 4, an external teeth gear 5, a rotary body 6, a reduction gear 8 and an electric motor 9, and is constituted for rotating at a low speed while rocking the rubbing hand projection 20, by transmitting high speed rotation of the electric motor 9 to the driving shaft 3 by reducing a speed by a pair of reduction gears 8 and 23, partially meshing the external teeth gear 5 with the internal teeth gear 2 by a constant eccentric quantity (e) by rotation of the driving shaft 3 and the eccentric boss 4, and rotating the external teeth gear 5 and the rotary body 6 at a low speed while changing the inclination direction in the inverse direction of the driving shaft 3 with the large reduction gear ratio by a tooth number difference of both gears. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Detailed Description of the Invention

The present invention relates to a pseudo-grip hand device, and in particular, by adopting a novel mechanism that rotates at a low speed while the hand-protrusion swings, it feels close to the hand-feeling that pushes while changing the place while pushing the pot of the kneading action. It is not like rolling or hitting, it is a feeling of massage by pressing slowly, it has a great massage effect, extremely simple structure, great durability, robust and compact enough to fit in the hand fist size, and The present invention relates to an epoch-making pseudo grinder that can be provided at low cost.

Conventionally, various types of pseudo-grip hands have been used for electric massage machines, and many mechanisms have been put to practical use. However, many conventional machines feel that the roller rolls or rolls and vibrates. Also, there are some that rotate the hand projection and only use the eccentricity of the drive shaft, and these things push the same place, and there is only a monotonous movement, so the effect of stirrer is too much There were many things that could not be expected. Moreover, since the massage machine employs an extremely complicated mechanism, many of them are quite large and difficult to handle, and many of them are quite expensive.

Also, if the mechanism of the complex hand movement of the pseudo-hand device swings at low speed while swinging and pushes while changing the position of the hand, it becomes quite large and fits the size of a human fist. Such a compact product could not be realized with conventional technology.

In addition, since this inventor and an applicant do not know the patent document and nonpatent literature which concern on this invention, the description is abbreviate | omitted.

Problems to be solved by the invention

The present invention has been made in order to eliminate the above-described drawbacks of the prior art. The object of the present invention is to fix a non-rotatable base to a base and to form a recess having a circular cross section on the radially inner side of the internal teeth. An internal gear, a drive shaft attached to the internal gear via a bearing so as to be rotatable and immovable in the axial direction, and a mounting hole to which the drive shaft is fixed are inclined non-parallel to the axial direction. An eccentric boss fixed to the drive shaft so as to obtain a certain amount of eccentricity with respect to the drive shaft, a direction perpendicular to the axis with respect to the eccentric boss and a non-perpendicular direction with respect to the drive shaft The concave portion of the internal gear is configured to be inclined to the inner gear so as to be rotatable through a bearing and has a slightly smaller number of teeth than the number of teeth of the internal gear and partially meshes with the internal gear. An external gear housed in the housing and a plurality of hand projections fixed to the external gear. The external gear partially meshes with the internal gear with a certain amount of eccentricity by the rotation of the drive shaft, so that the external gear and the rotary body are driven with a large reduction ratio due to the difference in the number of teeth of both gears. By rotating at low speed in the direction opposite to the axis and changing the tilt direction, the hand protrusions are configured to rotate at low speed while oscillating. It is to be able to obtain the feel of a fir close to fir.
Another object of the present invention is that, with the above-described configuration, the feeling of massage is good by feeling that it is pushed slowly, not by rolling or striking, it has a great scissor effect, is extremely simple in structure, has great durability, is robust, and has a hand fist. The purpose is to provide a compact and inexpensive pseudo-grip hand apparatus that can be accommodated in large quantities.

Another object is to provide a pair of reduction gears that rotate the drive shaft and an electric motor that rotates the pair of reduction gears, in addition to the above-described configuration, so that a separate drive source is provided for each pseudo-hand drive device independently. It is to make it a pseudo hand-operated device as a unit, and to make it easy to adopt a large-scale massage machine as a coherent simulated hand-held device while being very compact. Another object is to make it possible to use any number of massages for a long period of time, and to enable a large number of massages to be performed continuously.

Means for solving the problem

In short, the present invention (Claim 1) includes an internal gear fixed to a base in a non-rotatable manner and formed with a recess having a circular cross section on the inner side in the radial direction of the internal tooth, and the internal gear can be freely rotated via a bearing. In addition, a drive shaft that is mounted so as not to move in the axial direction and a mounting hole in which the drive shaft is fixed are tilted non-parallel to the axial direction so that a certain amount of eccentricity is obtained with respect to the drive shaft. An eccentric boss fixed to the drive shaft, and the inner teeth attached to the eccentric boss so as to be rotatable through a bearing inclined in a direction perpendicular to the axis and non-perpendicular to the drive shaft. An external gear having a slightly smaller number of teeth than that of the gear and configured to partially mesh with the internal gear and housed in the recess, and the external gear having a plurality of hand projections A rotating body fixed to the front, and by the rotation of the drive shaft, While the external gear partially meshes with the internal gear, the external gear and the rotating body change the direction of inclination and the direction opposite to the drive shaft with a large reduction ratio due to the difference in the number of teeth of both gears. By rotating at a low speed, the grind protrusion is configured to rotate at a low speed while swinging.

Further, according to the present invention (Claim 2), an internal gear which is fixed to the base so as not to rotate and has a concave section with a circular cross section formed radially inward of the internal teeth, and the internal gear can be freely rotated via a bearing. In addition, a drive shaft that is mounted so as not to move in the axial direction, and a mounting hole in which the drive shaft is fixed are inclined so as to be non-parallel to the axial direction so that a certain amount of eccentricity is obtained with respect to the drive shaft. An eccentric boss fixed to the drive shaft, and the inner teeth attached to the eccentric boss so as to be rotatable through a bearing inclined in a direction perpendicular to the axis and non-perpendicular to the drive shaft. An external gear having a slightly smaller number of teeth than that of the gear and configured to partially mesh with the internal gear and housed in the recess, and the external gear having a plurality of hand projections A rotating body fixed to the drive shaft, a reduction gear fixed to the drive shaft, and the other engaged with the reduction gear A reduction gear fixed to a rotary shaft and an electric motor fixed to the base, and high-speed rotation of the electric motor is reduced by the pair of reduction gears and transmitted to the drive shaft. The external gear partially meshes with the internal gear by the constant amount of eccentricity, so that the external gear and the rotating body are opposite to the drive shaft with a large reduction ratio due to the difference in the number of teeth of both gears. In addition, the structure is such that, by rotating at a low speed while changing the inclination direction, the hand projection is rotated at a low speed while swinging.

According to the present invention (Claim 3), the difference in the number of teeth between the internal gear and the external gear is set to 1, and the external gear is one tooth with respect to the internal gear every rotation of the drive shaft. It is characterized in that it is configured to reversely rotate at a large reduction ratio while shifting the meshing position one by one.

In the present invention (Claim 4), the number of teeth of the internal gear is 37, the number of teeth of the external gear is 36, and the reduction ratio of the external gear to the drive shaft is 1/37. It is characterized by comprising.

The invention's effect

The present invention includes an internal gear fixed to a base so as not to rotate as described above and having a concave section with a circular cross section formed radially inward of the internal teeth, and the internal gear being rotatable via a bearing and The drive shaft is mounted so as not to move in the axial direction, and the drive hole to which the drive shaft is fixed is tilted non-parallel to the axial direction so that a certain amount of eccentricity is obtained with respect to the drive shaft. An eccentric boss fixed to the shaft, and the number of teeth of the internal gear attached to the eccentric boss in a direction perpendicular to the axis and non-perpendicular to the drive shaft and rotatably mounted via a bearing An external gear having a slightly smaller number of teeth than the external gear and partially meshed with the internal gear and housed in a recess of the internal gear, and the external gear having a plurality of hand projections A rotating body fixed to the external gear, and the external gear partly with a certain amount of eccentricity by rotation of the drive shaft. By meshing with the toothed gear, the external gear and the rotating body rotate at a low speed while changing the inclination direction in the opposite direction to the drive shaft with a large reduction ratio due to the difference in the number of teeth of the two gears, thereby swinging the hand projection. However, since it is configured to rotate at a low speed, there is an effect that it is possible to obtain a feel of a hand that is similar to the hand of a hand that pushes while pushing the pot of the kneading operation while changing its location.
In addition, with the above configuration, it feels good to massage slowly, not just rolling or hitting, it has a great massage effect, very simple structure, great durability, robust and compact enough to fit in a hand fist size, In addition, there is an effect that it is possible to provide an inexpensive pseudo-grip device.

Further, in addition to the above-described configuration, a pair of reduction gears for rotating the drive shaft and an electric motor for rotating the pair of reduction gears are provided. There is an effect that can be used as a hand-held device, and as a result, there is an effect that it can be easily adopted as a coherent simulated hand-held device in a large-scale massage machine while being very compact. Another object is to make it possible to use any number of massages for a long time. As a result, there is an effect that a large number of people can be massaged continuously.

Hereinafter, the present invention will be described based on embodiments shown in the drawings. 1 to 8, the pseudo handwheel device 1 according to the present invention includes an internal gear 2, a drive shaft 3, an eccentric boss 4, an external gear 5, a rotating body 6, a reduction gear 8, and an electric motor. And a motor 9.

1 to 3, an internal gear 2 is a sun gear that forms a main part of the present invention, and is fixed to a base 10 by a screw 11 so as not to rotate, and has a circular cross section on the inner side in the radial direction of the internal tooth 2 a. Is formed with a boss 2e formed with a pair of bearing housings 2c and 2d. Referring also to FIG. 4, the internal tooth 2 a has a tooth shape left as a result of cutting with a simple convex arc-shaped tooth tool (not shown), that is, both the tooth surfaces have the same arc shape as the tooth tool. The tip is a concave arcuate tooth profile as a part of the tip circle centered on the center of the internal gear 2, and the number of teeth is set to 37, one more than the number of teeth of the external gear 5, for example. Has been.
As the material of the internal gear 2, a synthetic resin such as nylon resin or polyacetal resin having high self-lubricating property is used in order to be easy to manufacture and light in weight and to increase durability.

In FIG. 3, the drive shaft 3 is rotatable on the internal gear 2 via a pair of bearings (rolling bearings such as ball bearings) 12 (12C, 12D) housed in the bearing housings 2c, 2d. The C-shaped ring 13 is attached so as not to move in the axial direction. The C-shaped ring 13 is in contact with the inner races 12a of the pair of bearings 12 (12C, 12D), and the drive shaft 3 is connected to the inner race 12a. The toothed gears 2 are respectively press-fitted into the outer race 12b. A cut surface 3 b for the push screw 14 is formed at the upper end 3 a, the upper end 3 a protrudes further upward than the internal gear 2, and the lower end 3 c protrudes downward from the rotating shaft 9 a of the electric motor 9.

In FIG. 3, the eccentric boss 4 is a component that forms the center of the function of the present invention, and a mounting hole 4 a to which the drive shaft 3 is fixed is formed so as to be inclined non-parallel to the axial direction. The drive shaft 3 is fixed to the drive shaft 3 via the cut surface 3b so as to obtain a constant eccentricity e, and rotates integrally with the rotary shaft 3.
The amount of eccentricity e of the eccentric boss 4 with respect to the drive shaft 3 is defined as the point P between the center line O of the drive shaft 3 and the point P where the straight line 15 drawn in the axial direction from the center of the mounting hole 4a intersects the lower end 4c. An angle α formed by the straight line 15 and the center line O of the drive shaft 3 is an inclination angle of the eccentric boss 4 and the external gear 5 with respect to the internal gear 2.

The upper end 4 b of the eccentric boss 4 is formed perpendicular to the axial direction of the eccentric boss 4, whereas the bowl-shaped lower end 4 c having a slightly larger diameter is dared to the axial direction of the eccentric boss 4. It is formed at a non-right angle, and is formed parallel to the horizontal direction of the internal gear 2, that is, at a right angle to the mounting hole 4 a and the drive shaft 3. In this way, the lower end 4c is inclined from the direction perpendicular to the axis of the eccentric boss 4 in this way so that the lower end 4c is inclined by an angle α with respect to the direction perpendicular to the axis. If the reference surface is used, the drill (not shown) travels at right angles to the reference surface, so that the mounting hole 4a is necessarily inclined with respect to the axial direction of the eccentric boss 4 by an angle α. This is to facilitate drilling of the mounting hole 4a.

In FIG. 3, the external gear 5 is a planetary gear for the internal gear 2 as a sun gear, and is an angle α in a direction perpendicular to the axis with respect to the eccentric boss 4 and in a direction not perpendicular to the drive shaft 3. It is inclined and is rotatably mounted via a bearing (rolling bearing such as a ball bearing) 16, and has a slightly smaller number of teeth than the number of teeth of the internal gear 2, and is partially on the internal gear 2. It is comprised so that it may mesh | engage. As an example, the number of teeth of the external gear 5 is set to be one less than the number of teeth of the internal gear 2 and is 36.

Referring to FIG. 4 as well, the shape of the external teeth 5a of the external gear 5 is left as a result of cutting with a simple convex arcuate tooth tool (not shown), like the internal teeth 2a. In other words, the tooth shape is a circular arc shape that is the same as that of the tooth tool, and the tooth tip is a convex arc shape as a part of the tooth tip circle centered on the center of the external gear 5.

As the material of the external gear 5, as with the internal gear 2, synthetic resin such as nylon resin or polyacetal resin having high self-lubricating property is used. It may be made of a metal such as an oil-impregnated alloy.

The external gear 5 is integrated with the cylindrical member 19 by a screw 18, the cylindrical member 19 is press-fitted into the outer race 16b of the bearing 16, and the eccentric boss 4 is press-fitted into the inner race 16a of the bearing 16. As a result, The external gear 5 is configured to be rotatable with respect to the eccentric boss 4, meshes with the internal gear 2 by the rotation of the drive shaft 3 and the eccentric boss 4, rolls, and reverses the drive shaft 3 while swinging. In the direction, for example, it is configured to rotate at a very low speed of 1/37 of the drive shaft 3.

In FIG. 3, the rotating body 6 has a plurality of, for example, three handgrip projections 20 fixed by screws 21, and is fixed to the cylindrical member 19 of the external gear 5 by screws 22 and swings together with the external gear 5. It is configured to rotate at a low speed.
The three hand projections 20 are fixed in the circumferential direction of the rotating body 6 at intervals of 120 °, for example, and the surface thereof is formed in a spherical shape as large as the tip of a human thumb, and has a shape that is friendly to human skin. The material is, for example, a synthetic resin such as polyacetal resin having excellent self-lubricating properties. Further, the surface of the hand-grip protrusion 20 may be covered with a soft material such as a softer urethane dust.

In FIG. 3, the reduction gear 8 is fixed to the lower end 3c of the drive shaft 3, and as an example, a worm wheel having 30 teeth is used.

1 to 3, the electric motor 9 has another reduction gear (worm) 23 meshing with the reduction gear 8 fixed to the rotary shaft 9a with a screw 24 and fixed to the base 10 with a screw 28. It is a DC motor with an output of about 10W to 20W that is connected to an external power source (not shown) by a plug 29 and an electric wire 30 and is driven by a DC voltage of about 12V or 24V. The rotation speed can be varied by adjusting the voltage. However, in ordinary use, it is about 3000 rpm. For example, a reduction ratio of 1/30 is obtained by a reduction mechanism including the reduction gear 23 and the reduction gear 8. A DC motor is advantageous because it has a large starting torque, but an AC motor can of course be used as the electric motor 9.

As shown in FIGS. 1 to 4, the high-speed rotation of the electric motor 9 in the direction of arrow A is decelerated by the pair of reduction gears 23 and 8 and transmitted to the drive shaft 3. The rotation of the drive shaft 3 in the direction of arrow B causes the eccentric boss 4 to rotate in the direction of arrow B, and the inner race 16a of the bearing 16 into which the eccentric boss 4 is press-fitted rotates in the direction of arrow B. As a result, the external gear 5 partially meshes with the internal gear 2 due to the constant eccentric amount e of the eccentric boss 4, so that the external gear 5 and the rotating body 6 have a large reduction ratio due to the difference in the number of teeth of both gears. Thus, by rotating at a low speed in the direction of arrow C opposite to the drive shaft 3 and the eccentric boss 4 and changing the inclination direction, the hand projection 20 is configured to rotate at a low speed in the direction of arrow C while swinging. ing.

Next, an embodiment of the massage machine 25 incorporating the plurality of pseudo-hand-handed devices 1 according to the present invention will be described with reference to FIG. 8. One massage machine 25 is provided on the shoulder 26a and back 26b of the user 26, for example. This is an embodiment in which a total of three pseudo hand-held devices 1 are incorporated, one at the waist 26c and one at the leg. And if these pseudo hand-held devices 1 are operated simultaneously, each part of the body of the user 26 can be massaged and massaged at the same time.

Note that in an actual massage machine, the plurality of pseudo hand-held devices 1 are each mounted on a moving device (not shown) that can move around a predetermined range, so that one massage machine 25 is provided. The number of pseudo hand-held devices 1 required is determined at the stage of designing the massage machine.

The present invention is configured as described above, and the operation thereof will be described below. 1 to 7, when the electric motor 9 is connected to the power source via the male plug 29 and the electric wire 30, the electric motor is started and the rotating shaft 9a rotates in the direction of arrow A at a speed of about 3000 rpm. The high-speed rotation is reduced to 1/30 by the reduction gear 23 and the reduction gear 8, and the drive shaft 3 rotates in the direction of arrow B at a speed of about 100 rpm.

As the drive shaft 3 rotates, the eccentric boss 4 and the inner race 16a of the bearing 16 rotate at the same speed in the direction of the arrow B. At this time, the external gear 5 is caused by the eccentric amount e of the eccentric boss 4 with respect to the drive shaft 3. It will revolve eccentrically around the center line O of the drive shaft 3. The eccentric stroke of the revolution of the external gear 5 at this time is twice the eccentric amount e of the eccentric boss 4 and becomes 2e. With this eccentric stroke, the external gear 5 rolls with respect to the internal gear 2 while the external teeth 5a mesh with the internal teeth 2a while changing the engraving position with the internal gear 2. As a result, the external gear 5, the rotating body 6 and the hand projection 20 rotate at an extremely low speed in the direction of arrow C opposite to the direction of rotation of the drive shaft 3.

Specifically, when the number of teeth of the internal gear 2 is 37 and the number of teeth of the external gear 5 is 36, the reduction ratio is 1/37, so the rotational speed of the drive shaft 3 and the eccentric boss 4 is 100 rpm is decelerated and rotates at a very low speed of 2.7 rpm, that is, 0.045 rotations per second, and a rotation angle of 16.2 ° per second.
Further, with respect to the rocking caused by the inclination of the hand projection 20, the rotation speed of the drive shaft 3 is 100 rpm = 1.67 rps, and the rocking is performed once per rotation of the drive shaft 3, so that the time required for one rotation is 0. .6 seconds, so the period of oscillation is 0.6 seconds. As a result, the hand protrusion 20 swings at a rate of 1.67 times per second, so that the hand protrusion 20 bites the body of the user 26 even at an interval just like a hand.
The rotation speed of the fir tree hand projection 20 is extremely low at 16.2 ° per second as the rotation angle. Therefore, this is a very suitable speed for changing the fir tree position, and it is also held in the hand. This is why such a pleasant feeling is obtained.

Next, the operation in one rotation of the drive shaft 3 of the pseudo hand-held device 1 will be described in detail with reference to FIGS. 4 to 7. In each figure, (a) shows the drive shaft 3, the eccentric boss 4, the inner race 16 a of the bearing 16, The mutual relationship between the external gear 5 and the internal gear 2 is shown in a plan view, and FIG. 6B shows a mechanism in which the external gear 5, the rotating body 6 and the hand projection 20 are inclined by the rotation of the drive shaft 3 and the eccentric boss 4. For easy understanding, a vertical cross section of the pseudo fryer device 1 at the same rotational position as that of (a) of the drive shaft 3 is shown.

4A, when the cut surface 3b of the drive shaft 3 is in the left direction in the drawing, the eccentric amount e of the eccentric boss 4 is on the left side, and the drive shaft 3, the eccentric boss 4 and the inner race 16a are Therefore, only a part of the external teeth 5a on the left side of the external gear 5 mesh with the internal gear 2 and rotate at a very low speed in the direction of arrow C. At this time, (b) In FIG. 5, the external gear 5, the rotating body 6 and the hand projection 20 are inclined upward to the left, and the right external tooth 5a which is the lower side of the inclination is disengaged from the internal tooth 2a and the meshing is released. Similarly, only the outer teeth 5a on the upper side of the inclination are involved in the engagement with the inner teeth 2a, and the outer teeth 5a on the lower side of the inclination are not involved in the engagement with the inner teeth 2a.
In order to easily explain the action of the external teeth 5a of the external gear 5 shifting the meshing position one tooth at a time with respect to the internal teeth 2a of the internal gear 2 by one rotation of the drive shaft 3, the external teeth 5a Only one tooth, that is, the specific external tooth T is shown in black. The specific external tooth T meshes with the internal tooth 2a below the center line O of the drive shaft 3 in FIG.

Next, in FIG. 5A, since the drive shaft 3 is rotated 90 ° in the direction of arrow B from FIG. 4, the cut surface 3b of the drive shaft 3 moves downward in the figure, and the eccentric amount e of the eccentric boss 4 is lower. The drive shaft 3, the eccentric boss 4 and the inner race 16 a rotate in the direction of arrow B, so that only a part of the external teeth 5 a on the lower side of the external gear 5 mesh with the internal gear 2. It rotates at a very low speed in the direction of arrow C. At this time, in FIG.
The specific external tooth T moves slightly in the direction of the arrow C, that is, upward from the meshing position in FIG. 4A, and the meshing with the internal gear 2 is almost released.

Next, in FIG. 6A, the drive shaft 3 is further rotated 90 ° in the direction of arrow B from FIG. 5, so that the cut surface 3b of the drive shaft 3 moves to the right in the figure, and the eccentric amount e of the eccentric boss 4 is On the right side, the drive shaft 3, the eccentric boss 4 and the inner race 16a rotate in the direction of the arrow B. Therefore, only a part of the external teeth 5a on the right side of the external gear 5 mesh with the internal gear 2, and the arrow It rotates at a very low speed in the direction C, and at this time, the external gear 5, the rotating body 6 and the hand protrusion 20 are inclined upward in the drawing in FIG.
The specific external tooth T moves slightly in the direction of arrow C from the meshing position in FIG. 5A, that is, upwards, so that the meshing with the internal gear 2 is completely released and moves to the position of the center line O of the drive shaft 3. ing.

Finally, in FIG. 7A, the drive shaft 3 is further rotated by 90 ° in the direction of arrow B from FIG. 6, so that the cut surface 3b of the drive shaft 3 moves upward in the figure, and the eccentric amount e of the eccentric boss 4 Is on the upper side, and the drive shaft 3, the eccentric boss 4 and the inner race 16a rotate in the direction of the arrow B, so that only a part of the external teeth 5a on the upper side of the external gear 5 mesh with the internal gear 2. It rotates at a very low speed in the direction of arrow C. At this time, the external gear 5, the rotating body 6 and the hand protrusion 20 are inclined upward in the figure.
The specific external tooth T moves slightly in the direction of the arrow C from the meshing position in FIG. 6A, that is, upward, and meshing with the internal tooth 2a one tooth above the internal tooth 2a in FIG. The drive shaft 3 has been moved to a position above the center line O.
When the drive shaft 3 rotates once, the state returns to the state where the specific external tooth T is shifted to one tooth from FIG. 4, and the same operation is repeated thereafter.

As described above, the mechanism in which the external gear 5 revolves and rotates while rotating with respect to the internal gear 2 by one rotation of the drive shaft 3 and the eccentric boss 4, that is, the mechanism for shifting the meshing position by one tooth, that is, deceleration. The mechanism in which the ratio is 1/37 and the mechanism in which the external gear 5, the rotating body 6, and the hand projection 20 are oscillated once by the change in the inclination direction have been clarified.

In FIG. 8, according to such a massage machine 25 incorporating a plurality of pseudo-hand-handed devices 1 according to the present invention, the hand-held hand-held device 1 fits very compactly in the size of a human fist, and even in the hands of humans. Similar to Nada, the knurled hand projection 20 changes the kneading position little by little in the direction of rotation while looking at a slow cycle of about 1.67 times per second, so a comfortable fir feeling is obtained, which is not found in the past It has an excellent massage effect.

Of course, it is possible to use the pseudo hand-held device 1 alone without being incorporated in the massage machine, and if used in a suitable housing (not shown), the simulated hand-held device 1 itself can be used as a handy massage machine. Can also be used, and its application is very wide.

The drawings relate to the embodiment of the present invention, and FIG. FIG. 3 is a front view of the pseudo-grinding apparatus. FIG. 3 is a longitudinal sectional view of a main part of the pseudo fryer device. 4 to 7 show the operation of the pseudo-grinding device. In each figure, (a) shows the main part plane of the pseudo-handing device, (b) shows the same longitudinal section, and FIG. 4 shows the external gear ascending to the left. In FIG. 2A, only a part of the left external gear meshes with the internal gear. The external gear is inclined forward and only a part of the lower external gear meshes with the internal gear in (a). The external gear is inclined upward to the right, and in (a), only a part of the right external tooth is engaged with the internal gear. The external gear is inclined upward and the part of the upper external tooth is in mesh with the internal gear in (a). It is a schematic side view which shows the use condition of the massage machine incorporating the pseudo hand-held device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pseudo handwheel device 2 Internal gear 2a Internal tooth 2b Recessed part 2c Bearing housing 2d Bearing housing 2e Boss part 3 Drive shaft 3a Upper end 3b Cut surface 3c Lower end 4 Eccentric boss 4a Mounting hole 4b Upper end 4c Lower end 5 External gear 5a External tooth 6 Rotating body 8 Reduction gear 9 Electric motor 9a Rotating shaft 10 Base 11 Screw 12 Bearing 12C Bearing 12D Bearing 12a Inner race 12b Outer race 13 C-type ring 14 Push screw 15 Linear 16 Bearing 16a Inner race 16b Outer race 18 Screw 19 Cylindrical member 20 Projection 21 Screw 22 Screw 23 Other reduction gear 24 Screw 25 Massage machine 26 User 26a Shoulder 26b Back 26c Waist 26d Leg 28 Screw 29 Male plug 30 Electric wire A Arrow B Arrow C Arrow e Eccentric amount O Centerline P point of drive shaft α angle

Claims (4)

An internal gear fixed to the base in a non-rotatable manner and having a concave section with a circular cross section formed radially inward of the internal teeth, and attached to the internal gear via a bearing so as to be rotatable and non-movable in the axial direction A drive shaft, and an eccentric boss fixed to the drive shaft so that a mounting hole to which the drive shaft is fixed is tilted non-parallel to the axial direction and a fixed amount of eccentricity is obtained with respect to the drive shaft. The number of teeth of the eccentric boss is slightly less than the number of teeth of the internal gear, which is tilted in a direction perpendicular to the axis and non-perpendicular to the drive shaft and is rotatably mounted via a bearing. A plurality of external gears configured to partially mesh with the internal gear and housed in the recess, and a rotating body having a plurality of hand projections and fixed to the external gear, Due to the rotation of the drive shaft, the external gear is partially driven by the constant eccentric amount. The external gear and the rotating body rotate at a low speed while changing the inclination direction in the opposite direction to the drive shaft with a large reduction ratio due to the difference in the number of teeth of the two gears, and thereby the hand protrusion is shaken. A pseudo hand-held device configured to rotate at a low speed while moving. An internal gear fixed to the base in a non-rotatable manner and having a concave section with a circular cross section formed radially inward of the internal teeth, and attached to the internal gear via a bearing so as to be rotatable and non-movable in the axial direction A drive shaft, and an eccentric boss fixed to the drive shaft so that a mounting hole to which the drive shaft is fixed is tilted non-parallel to the axial direction and a fixed amount of eccentricity is obtained with respect to the drive shaft. The number of teeth of the eccentric boss is slightly smaller than the number of teeth of the internal gear, and is tilted in a direction perpendicular to the shaft and non-perpendicular to the drive shaft. A number of external gears configured to partially mesh with the internal gear and housed in the recess, a rotating body having a plurality of hand projections and fixed to the external gear, and the drive A reduction gear fixed to the shaft and another reduction gear meshing with the reduction gear are fixed to the rotation shaft. An electric motor fixed to the base, and the high-speed rotation of the electric motor is decelerated by the pair of reduction gears and transmitted to the drive shaft. The toothed gear partially meshes with the internal gear, so that the external gear and the rotating body have a large reduction ratio due to the difference in the number of teeth of the two gears and change the tilt direction in the opposite direction to the drive shaft and at a low speed. A pseudo hand-held device configured to rotate at a low speed while swinging while rotating. The difference in the number of teeth between the internal gear and the external gear is 1, and a large reduction ratio is obtained while shifting the meshing position of the external gear with respect to the internal gear for each rotation of the drive shaft. 3. The pseudo hand-held device according to claim 1, wherein the device is configured to rotate in reverse. The number of teeth of the internal gear is 37, the number of teeth of the external gear is 36, and the reduction ratio of the external gear with respect to the drive shaft is 1/37. Alternatively, the pseudo hand-held device according to claim 2.

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