JPH0542187A - Massager - Google Patents

Abstract

PURPOSE:To eliminate aggravated massage feeling caused by adding rotation force from a massage roller, and also, to thin the massager, and moreover, to facilitate a change of a massage body, in a constitution for executing a massage/loosening action by an oscillation of a pair of massage rollers inclined to the rotation axis. CONSTITUTION:Massage rollers 4, 4 are constituted of a base part 40 fitted and attached to a rotation axis 3, an outer ring 41 fitted into the inclined surface of its outside so that a relative rotation is executed freely, and a massage body 42 for covering its outside. The tip of a guide lever 45 provided projectingly on the outer ring 41 is fitted into a guide rail 5 provided in a casing 1, and a rotation of the outer ring 41 is detained to the casing. Also, the outer ring 41 is formed to a shape in which a part of a disk is removed, and dimension required for the bottom face side of the casing 1 is decreased. Moreover, the installation of the massage body 42 is executed by engaging the outer ring 41 to the removed part side edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massager used to massage and massage a treatment area such as a neck, a leg and a waist.

[0002]

2. Description of the Related Art As a massager having a simple structure for the purpose of loosening and massaging a treatment section, for example, as disclosed in Japanese Patent Publication No. 62-54018, it is suitable for use on a rotary shaft pivotally supported inside a casing. A pair of kneading rollers, which are inclined in different directions with respect to the shaft center and are both disc-shaped, are attached to the two long-spaced parts, and the kneading rollers are rocked by the rotation of the rotary shaft. A massager that has been put into practical use has been put into practical use.

In this massager, a treatment section is applied to the peripheral edges of both massaging rollers, a part of which protrudes outside the casing,
It is used in the procedure of rotationally driving the rotary shaft. At this time, the massage portion is subjected to a kneading action by the peripheral edges of both kneading rollers that repeatedly approach and separate from each other in accordance with the above-described swinging motion, and a desired kneading and loosening effect is obtained by adjusting the rotation speed of the rotary shaft.

[0004]

However, in the conventional structure, the rubbing roller is fixed to the rotary shaft, and as the rotary shaft rotates, the rubbing roller also swings while rotating. There was a problem that a comfortable rubbing sensation could not be obtained due to the rubbing action and the force to pull in the direction of rotation added to the treatment part pressed against.

Further, in order to enable the rotation of the rubbing roller around the rotating shaft, a space corresponding to the turning radius of the rubbing roller is required between the rotating shaft and each part of the inner surface of the casing supporting the rotating shaft. This is a factor that hinders the outer dimension of the casing, that is, the outer dimension of the entire massager from being reduced in size, particularly from being thin.

FIG. 5 is a schematic view showing a state in which this type of massager is used to massage and loosen the neck. As shown in this figure, when using the massager on the floor, the casing 1 of the massager is placed on a floor surface, and a user lying on the same floor folds the neck portion to the upper part of the casing 1 by a kneading roller. It is desirable that the casing 1 is used by being applied to the peripheral edge of the casing 4. At this time, in order to reduce the unnecessary burden on the neck, it is important to realize a thin casing 1.

Further, in this type of massager, generally, in order to reduce the pressing load on the treatment section, the peripheral edge of the kneading roller abutting the treatment section is made of an elastic material such as rubber-based synthetic resin. The rubbing body is wrapped around.

This massaging body is a consumable item that is constantly in contact with the treatment section and needs to be replaced at an appropriate frequency. On the other hand, it is desirable to use one having a different shape according to the preference of the user or the treatment site. .. However, in the conventional massage device, since the rubbing roller is a disc fixed to the rotating shaft, in order to replace the rubbing body, it is necessary to disassemble the mechanical portion such as removal of the rotating shaft, There has been a problem that the user needs to devise a certain device to carry out this disassembly, and the structure becomes complicated.

The present invention has been made in view of such circumstances, and only the rubbing action on the treatment section can be reliably performed, and the overall shape can be made thin. Further, the rubbing body can be replaced. An object is to provide a massage device that can be easily performed.

[0010]

A massager according to a first aspect of the present invention is provided at two positions, which are separated by an appropriate length, on a rotary shaft pivotally supported inside a casing, and are arranged relative to the axis of the rotary shaft. In a massager that includes a pair of rubbing rollers inclined in different directions and oscillates by rotating the rotating shaft to perform a rubbing action, the rubbing roller is fitted to the rotating shaft. A base portion having an inclined surface with respect to the axis on a part of the outer circumference, and an outer ring fitted to the inclined surface so as to be rotatable relative to the base portion and having its rotation restricted by a part of the casing. It is characterized by

Further, in the massager according to the second aspect of the present invention, the outer ring is shaped such that a part of the hollow disk is cut off over an appropriate center angle range. Each of the containers is characterized in that both ends thereof are locked to both side edges of the cut portion of the outer ring in the second invention, and a kneading body that covers the outer peripheral edge of the outer ring excluding the cut portion is detachably provided.

[0012]

According to the present invention, the inclination angle of the inclined surface with respect to the rotation axis is formed by the base portion fixed to the rotation shaft and the outer ring fitted to the inclined surface of the outer circumference of the base portion so as to be relatively rotatable. The rotation of the outer ring, which constitutes a rubbing roller that inclines only to the treatment section, is restricted by a part of the casing to rotate the outer ring, which causes a rubbing action on the treatment section. To prevent the rubbing sensation from getting worse.

Further, since the contacting side of the outer ring on the circumference of the outer ring is limited due to the restraint, a disc-shaped outer ring is used by cutting out a part other than the contacting side, and rotation on the cutting side is performed. The gap between the shaft and the inner wall of the casing can be reduced, and the casing can be made thinner.

Furthermore, by using a removable mass that covers the outside of the outer ring by locking the cut parts to both side edges, wear mass by friction, user's preference, or replacement of the mass depending on the region to be treated. Make it easy.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is an external perspective view of a massager according to the present invention, and FIG. 2 is a perspective view showing its internal structure.

In the figure, reference numeral 1 denotes a rectangular box-shaped casing. An opening 1a (see FIG. 2) is formed across the top surface and side surfaces in a predetermined length range along one side edge of the top surface of the casing 1. The opening 1a is made of a cloth upper cover 2 (See FIG. 1), the entire surface is covered.

As shown in FIG. 2, inside the casing 1,
A rotary shaft 3 is rotatably supported so as to face the opening 1a, and a pair of kneading rollers 4 and 4 are attached to the rotary shaft 3. Further, on the bottom surface of the casing 1, a guide rail 5 having a U-shaped cross section is installed below the rotating shaft 3 in parallel with the opening surface of the guide rail 5, and at the back of the guide rail 5. On the side (opposite to the opening 1a), a feed screw shaft 6 having a screw on the outer periphery thereof is rotatably supported in parallel with the rotary shaft 3.

Further, on the innermost side of the casing 1, two motors 7 and 8 are fixedly provided at both ends of the rotary shaft 3 and the feed screw shaft 6, respectively, and the output of one motor 7 is fixed. The shaft is connected to the shaft end of the rotary shaft 3 via a speed reduction mechanism 70 that is formed by combining a plurality of spur gears, and the output shaft of the other motor 8 is a speed reduction mechanism that is formed by combining a plurality of spur gears. It is connected to the feed screw shaft 6 via 80 and a belt transmission mechanism 81.

ON / OFF of the motors 7 and 8 and the motor 7
To adjust the amount of power supplied to the
As shown in FIG. 1, the operation is performed according to each switch operation on the switch box 9 connected to the outside of the casing 1 via the signal line 9a. The rotating shaft 3 turns on the motor 7. Thus, the feed screw shaft 6 is driven to rotate at a speed corresponding to the amount of power supplied to the motor 7, and the feed screw shaft 6 is driven to rotate at a predetermined speed when the motor 8 is turned on.

FIG. 3 is a vertical cross-sectional view showing how the rubbing roller 4 is attached to the rotary shaft 3. As shown in the figure, the rubbing roller 4 includes a base portion 40 fitted to the rotating shaft 3, an outer ring 41 attached to the outer side of the base portion 40, and a rubbing body 42 wound around the outer ring 41.

The base 40 is a key embedded in the outer periphery of the rotary shaft 3.
Only the rotation is restricted by the rotation shaft 3 by the engagement with 30, and a cylindrical inclined surface having an axis inclined with respect to the axis of the rotation shaft 3 is provided on the outer periphery of one side of the base 40. 43 is formed,
A ball bearing 44 is externally fitted and fixed to the inclined surface 43. On the other side of the base 40, one end of the connecting member 10 is externally fitted and fixed, and the other end of the connecting member 10 extends below the rotary shaft 3 toward the inner side, as shown in FIG. The feed screw shaft 6 is provided and is parallel to the rotary shaft 3 and is screwed.

When the feed screw shaft 6 is rotated by the above configuration, the base portion 40 of the kneading roller 4 is given a feed force through the connecting member 10 in the screw advancing direction of the outer circumference of the feed screw shaft 6,
It will slide along the outer periphery of the rotary shaft 3. The screw on the outer circumference of the feed screw shaft 6 has one screw as the left screw and the other screw as the right screw from the central portion toward both ends. The pair of kneading rollers 4 and 4 attached to the rotating shaft 3 are different connecting members. 10, 10
Are connected to the left-hand thread portion and the right-hand thread portion, respectively.

That is, the rubbing rollers 4 and 4 slide in different directions along the rotating shaft 3 in accordance with the rotation of the feed screw 6 in both directions due to the forward and reverse rotation of the motor 8. In the normal rotation of 8
When they rotate in the reverse direction, they move closer to each other, while they rotate integrally with the rotating shaft 3 in accordance with the rotation of the rotating shaft 3 according to the energization of the motor 7.

On the other hand, the outer ring 41 on the outer side of the base portion 40 has an outer shape as shown in FIG. 2 in which a part of a disk is cut off over a predetermined central angle range, and as shown in FIG. It is a member that can be split in two in the depth direction, and is integrated in such a manner that the outer ring of the ball bearing 44 fitted to the inclined surface 43 of the base portion 40 is sandwiched.
A guide rod 45, which is in the form of a short column, together with a ball bearing 44 is sandwiched in the cut-out portion of the outer ring 41, and the tip of the guide rod 45 is
The guide rail 5 provided below the rotary shaft 3 is engaged with the guide rail 5 through its upper opening.

With the above structure, the outer ring 41 is rotatable relative to the inclined surface 43 of the base 40, and the rotation of the casing 1 is restricted by the engagement of the guide rod 45 and the guide rail 5. Therefore, the outer ring 41 does not rotate in accordance with the rotation of the base 40 accompanying the rotation of the rotation shaft 3, and the angle range corresponding to the inclination angle of the inclined surface 43 as indicated by the chain double-dashed line in FIG. Only swaying inside occurs.

The pair of rubbing rollers 4 and 4 on the rotary shaft 3 are
As shown in FIG. 2, the outer rings 41, 41 are positioned so that the inclination directions of the outer rings 41, 41 are opposite to each other. When the rotary shaft 3 rotates, the casing 1 of the rubbing rollers 4 and 4 is always projected from the opening 1a of the casing 1.
The protruding portions perform a motion of repeatedly approaching and moving away from each other by different swings, and the speed of this motion can be freely adjusted by adjusting the rotation speed of the rotary shaft 3.

Further, since the outer ring 41 is engaged with the guide rail 5 through the guide rod 45 projecting from the cut portion of the outer ring 41, the outer ring 41 is provided between the rotary shaft 3 and the guide rail 5. Requires only a radius corresponding to the cut-out portion of the outer ring 41 and the protruding length of the guide rod 45, and the height from the bottom surface of the casing 1 to the installation position of the rotary shaft 3 can be reduced. As a result, the casing 1 can be made thinner.

The kneading body 42 is the opening of the casing 1.
It is wound only on the protruding portion of the outer ring 41 from 1a, that is, on the outside of the uncut portion of the outer ring 41. FIG. 4 is an explanatory diagram of a method of mounting the massaging body 42.

The kneading body 42 is made of a highly elastic material such as a rubber-based synthetic resin, and has a shape as shown in FIG. Is a member having a ridge having a predetermined width on the inner periphery thereof.
42a is provided so as to project over the entire circumference, and engaging projections 42b, 42b projecting radially inward are formed at both ends of the projection 42a. On the other hand, a concave groove 41a having a width corresponding to the protrusion 42a is formed at the center of the outer ring 41 around the outer ring 41 around which the kneading body 42 is wound.

Thus, the kneading body 42 has the ridges 42a on the inner circumference thereof.
4 is wound around the outer ring 41 while pushing into the groove 41a, and as shown by the arrow in FIG. 4, the engaging protrusions 42b, 42b on both sides of the protrusion 42a are cut off from the outer ring 41. The both side edges are engaged and wound. As a result, the outside of the portion of the pair of rubbing rollers 4, 4 projecting from the opening 1a of the casing 1 is covered with the elastic rubbing body 42.

As shown in FIG. 1, the massage device according to the present invention configured as described above applies the treatment section to the kneading rollers 4 and 4 that push up the upper cover 2 that covers the opening 1a and project the upper cover 2 so that the switch 9 is operated. It is used in the procedure of rotationally driving the rotary shaft 3 by operation. As a result, the oscillating motion of the rubbing rollers 4 and 4 generated as described above is applied to the treatment section via the rubbing bodies 42 and 42. The rubbing bodies 42 and 42 are fixed to the outer ring 41, whose rotation is restricted. Since it is wrapped around 41, there is no fear that a rotational force will be applied to the treatment section, and a comfortable massage feeling can be obtained.

The feed screw shaft 6 is operated by operating the switch 9.
When the roller is driven to rotate, the rubbing rollers 4 and 4 move their bases 4
Since they move closer or farther via 0, 40 and the distance between them changes, for example, when used for legs, it is narrow,
When used on the lumbar region, a suitable interval is selected according to the treatment area, such as wide, and a sufficient massage and loosening effect is always obtained.

Further, in the massager according to the present invention, since the kneading body 42 is wound around the kneading roller 4 as described above, not only the kneading body 42 is replaced due to wear but also, for example, FIG. As shown by the broken line in the inside, the kneading body 42 having a protrusion on the opposite side to the other can be easily replaced according to the user's preference or the type of treatment section, which is satisfactory. The desired medical treatment effect can be obtained.

[0034]

As described above in detail, in the massager according to the present invention, a rubbing roller is constituted by a base portion fixed to the rotating shaft and an outer ring fitted relatively rotatably to the inclined surface of the outer circumference of the base portion. Moreover, since the rotation of the outer ring is restrained by a part of the casing, only a swinging motion occurs in the outer ring with the rotation of the rotating shaft, and a comfortable rubbing sensation can be obtained.

Further, since the outer ring is used in which the portion other than the contact side with the treatment section is cut off, the dimension between the rotary shaft and the casing on the cut side can be reduced, and the casing can be made smaller, especially thinner. Will be realized.

Further, since the kneading body for covering the outer side of the outer ring is detachably provided by locking to the both side edges of the cut portion of the outer ring, replacement at the time of wear due to friction and user's preference,
Alternatively, the present invention has excellent effects such that the massaging body can be easily replaced according to the treatment section and a satisfactory treatment effect can be obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view of a massager according to the present invention.

FIG. 2 is a perspective view showing an internal configuration of a massager according to the present invention.

FIG. 3 is a vertical cross-sectional view showing an attachment mode of a rubbing roller.

FIG. 4 is an explanatory diagram of a method of mounting a rubbing body on a rubbing roller.

FIG. 5 is an explanatory view of how to use the massager for the neck.

[Explanation of symbols]

 1 casing 3 rotating shaft 4 rubbing roller 5 guide rail 6 feed screw shaft 7 motor 8 motor 10 connecting member 40 base 41 outer ring 42 rubbing body 43 inclined surface 45 guide rod

Claims (3)

[Claims] 1. A pair of rubbing rollers inclined in different directions with respect to the axis of a rotary shaft pivotally supported inside the casing and separated from each other by an appropriate length. In a massager configured to oscillate by rotating the shaft to perform a rubbing action, the rubbing roller is fitted to the rotating shaft, and a base portion having a sloped surface with respect to the shaft center in a part of an outer circumference. A massager, comprising: an outer ring that is fitted onto the inclined surface so as to be rotatable relative to the base portion, and a rotation of the casing is restricted by a part of the casing. 2. The massager according to claim 1, wherein the outer ring has a shape in which a part of a hollow disk is cut off over an appropriate central angle range. 3. The massager according to claim 2, further comprising a kneading body detachably attached to both side edges of the cutout portion, the both ends of which are locked and which covers the outer peripheral edge of the outer ring excluding the cutout portion.