JPS623149Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a massaging machine, more specifically, a pair of left and right massaging balls are provided so as to be able to swing and rotate in relative directions, and the massaging balls are moved between the two massaging balls through the oscillating rotation of both the massaging balls. This invention relates to an improvement in a massaging machine that obtains a massaging effect by grasping the affected area, and is capable of preventing excessive massaging caused by excessive grasping with both massaging balls, as well as obtaining a combined effect of massaging and acupressure. Its purpose is to

A type of conventional massaging machine that obtains a massaging effect by oscillating and rotating massaging balls.
More specifically, a rotating shaft having a vertical shaft portion and an inclined shaft portion and bent into a substantially dogleg shape is provided facing each other so that the inclined shaft portion can be oscillated and rotated. The massaging balls are mounted on an axis so that they can rotate around the same inclined shaft part, and both massaging balls are oscillated and rotated with the affected area in pressure contact with both massaging balls. Conventionally, massaging machines have been commonly used in which a massaging effect is obtained by gripping the affected area between both massaging balls through the frictional resistance generated on the contact surface between the massaging balls and the affected area due to dynamic rotation. However, in the conventional massaging machine described above, the problem is that excessive massaging occurs due to too large frictional resistance between the massaging balls and the affected area to which the massaging balls are pressed. have

In other words, in a massaging machine with a conventional structure, both massaging balls are provided so as to be able to freely move about the center line of a tilted shaft section that is provided so as to be able to swing freely, and when the massaging balls are in pressure contact with the affected area, When the rocking rotation direction of the shaft (revolution of the massaging balls) and the free movement direction of the massaging balls (rotation of the massaging balls) match, the massaging balls have the effect of rolling along the affected area, and this rotation The effect of canceling out the frictional resistance that occurs between the massager and the affected area is obtained through the movement, but as mentioned above, the kneading balls are provided so that they can move around the center line of the inclined shaft part as a fulcrum. Therefore, the state in which the revolution direction and the rotation direction of the massaging balls coincide with each other as described above can only be achieved within a limited range. If the rotation direction of the massaging balls does not match the rotation direction, frictional resistance will occur between the massaging balls and the affected area, and this frictional resistance will pull the affected area in the direction of the oscillating rotation of the massaging balls, and between the massaging balls. The action of grasping the affected area, that is, the kneading action, is obtained, but on the other hand, when the direction of rotation of the kneading balls does not match the direction of rotation, the rotation of the kneading balls can offset the frictional resistance as described above. If the massager is not able to do so, the affected area may be pulled too much by both massage balls, resulting in excessive grasping, which may cause pain to the affected area or, depending on the affected area, may pose a danger to the human body. be.

The present invention is an attempt to improve the conventional situation in view of the above-mentioned actual situation, and the kneading balls are provided so as to be freely movable in the universal direction with respect to the inclined shaft part, and the kneading balls are moved in the direction of revolution of the kneading balls. By expanding the range in which the rotation directions of the massage balls coincide with each other, it is possible to increase the range in which the frictional resistance that occurs between the massage balls and the affected area can be offset, thereby preventing the occurrence of dangers caused by grasping too much. However, it is characterized by its improved safety and ability to simultaneously obtain acupressure action in addition to massaging action.

The gist of the present invention is to provide a pair of left and right rotating shafts, which have a vertical shaft part and an inclined shaft part, and form a substantially doglegged shape, facing each other, and a kneading ball with a spherical surface at the tips of both inclined shaft parts. The structure is such that the crowns are freely movable in the universal direction via bearings.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings. In each of the drawings shown in FIGS. 1 to 3, reference numeral 1 indicates a housing constituting the outer shell of the massaging machine according to the present invention. The housing 1 is the bottom plate 1
A and a cover body 1B covering the same bottom plate 1A are formed in a flat rectangular shape, and a pair of left and right through holes 2, 2 are opened in the top plate of the cover body 1B. A gear case 3 and a motor 4 are housed within the housing 1. Inside the gear case 3, there are a pair of upper and lower bearings 5 corresponding to the through holes 2, 2.
a, 5b, 5a, 5b are provided, and both bearing parts 5
Rotating shafts 6, 6 are supported on a, 5b, 5a, 5b. The rotating shafts 6, 6 are formed by bending the vertical shaft portion 6a and the inclined shaft portion 6b into a substantially V-shape. It is provided so as to protrude above the top plate of 1B.

Further, on the vertical shaft portions 6a, 6a of both rotating shafts 6, 6, worm wheels 7, 7 are located between the pair of upper and lower bearing portions 5a, 5b, 5a, 5b, and are horizontally mounted with an appropriate gap a between them. It is rotatably mounted on an axis.

Further, a drive shaft 8 is protruded from the motor 4 housed in the housing 1, and its tip is provided so as to face the inside of the gear case 3, more specifically, the above-mentioned gap a. A worm 9 is mounted on the tip of the drive shaft 8, and the worm 9 is provided so as to mesh with the worm wheels 7, 7 within the gap a.

On the other hand, the inclined shaft portions 6b, 6b are provided so as to have substantially the same inclination angle and to be inclined in relative directions.
Both inclined shaft parts 6b, 6b are provided with spherical bearings 10, 10 located near their tips, and kneading balls 11, 11 are provided in the spherical bearings 10, 10 at the tips of the inclined shaft parts 6b, 6b. It is crowned so that it can freely move in the universal direction so as to cover it. Stoppers 12 and 1 are provided at the tips of the inclined shaft portions 6b and 6b.
2 is fixed, and between the stoppers 12, 12 and the spherical bearings 10, 10, spherical bearings 10, 1 are fixed.
Centering springs 13, 13 are interposed which are formed in a spiral shape so that the diameter gradually decreases from the zero side toward the stoppers 12, 12. In the above embodiment, the stoppers 12, 12 are provided at the tips of the inclined shaft portions 6b, 6b.
12 is not necessarily necessary.

Next, its effect will be explained.

By turning on the power switch to drive the motor 4, the driving force is transmitted to the rotating shafts 6, 6 via the drive shaft 8, worm 9, and worm wheels 7, 7. As the driving force of the motor 4 is transmitted to the rotating shafts 6, 6, the pair of kneading balls 11, 11 swing and rotate in the relative direction through the swinging rotation of the inclined shaft portions 6b, 6b. The state (revolution of the massaging balls 11, 11) is obtained. In this state where both the massaging balls 11, 11 are oscillatingly rotating (revolving) in the relative directions, both the massaging balls 11,
By bringing the affected area into pressure contact with the massaging balls 11, the affected area is pulled in the direction of the rocking rotation of the massaging balls 11, 11 through the frictional resistance generated between the affected region and the contact surfaces of the massaging balls 11, 11. When the massaging balls 11, 11 are oscillated and rotated to a position where they face each other as shown in FIG. 2, an action of grasping the affected area, that is, a massaging action is obtained between the massaging balls 11, 11.
In this invention, as mentioned above, both massaging balls 11, 1
1 is a spherical bearing 10, 10 for a rotating shaft 6, 6
Since both the massaging balls 11, 11 are provided so as to be freely movable in the universal direction via the same movement (rotation action), the massaging balls 11, 11 are pressed against the affected area through the same free movement (rotation action). A state of rolling along the oscillating rotation direction (revolution direction) is obtained. Through the rolling action of both the massaging balls 11, 11, the frictional resistance generated between the affected area and the contact surfaces of both the massaging balls 11, 11 can be canceled out, and as a result, the affected area caused by the massaging balls 11, 11 can prevent excessive tension.

Furthermore, as described above, by achieving a state in which both the massaging balls 11, 11 roll while being in pressure contact with the affected area, an effect of applying acupressure to the affected area can be obtained. That is, in addition to the kneading action, acupressure action can be obtained simultaneously.

In other words, in a state where the amount of displacement of the massaging balls 11, 11 is within the range of the amount of play obtained from the massaging balls 11, 11, acupressure effect can be obtained, and in a state where the amount of displacement exceeds the amount of play. It is possible to obtain a kneading effect.

On the other hand, alignment spring 1 is used for both massaging balls 11, 11.
3 and 13 are interposed, both the massaging balls 11 and 11 are released from the state of pressure contact with the affected area, and at the same time, both the massaging balls 11 and 11 can be restored to their old positions. That is, both massaging balls 11,1
1, a self-aligning effect can be obtained.

Also, since the alignment springs 13, 13 are interposed between the massaging balls 11, 11 in this way, by appropriately selecting the biasing pressure of the alignment springs 13, 13, The frictional resistance against the affected area can be changed arbitrarily. By changing the frictional resistance to the affected area in this way, the range of action of kneading and the range of action of acupressure can be adjusted as desired.

That is, since the loose motion of both the massaging balls 11, 11 can be obtained in a state where the biasing pressure of the centering springs 13, 13 is overcome, if the biasing force of the centering springs 13, 13 is weakened, both the massaging balls 11 , 11 and the affected area, the massaging balls 11, 11
By being able to roll the finger, the range of action of acupressure increases accordingly. On the other hand, if the biasing pressure of the alignment springs 13, 13 is increased, both the massaging balls 11, 11 will not be able to maintain the biasing pressure of the alignment springs 13, 13 until the frictional resistance generated between them and the affected area increases to a certain extent. Since the massaging balls 11, 11 cannot be moved freely by overcoming this, the range of action of massaging becomes correspondingly larger. In the above embodiment, the rotary shafts 6, 6 are bent into a substantially doglegged shape, so that the tip portions of the rotary shafts 6, 6 are provided with an oscillating rotation (revolution) action. However, in addition to the above embodiment, by forming the rotating shaft into a crank shape and providing the tip with an offset position, it is also possible to obtain the same rocking rotation (revolution) effect on the tip as in the above embodiment. is possible.

The present invention is constructed as described above.
As mentioned above, the rotating shaft has a vertical shaft part and an inclined shaft part and is bent into a substantially F-shape, and the kneading balls are freely movable toward the universal direction via a spherical bearing on the inclined shaft part. By canceling out the frictional resistance generated between the massaging balls and the affected area to which they are pressed through the free movement of the massaging balls in the universal direction, excessive massaging of the affected area by both massaging balls is prevented. I was able to do it. In other words, it has become possible to improve its safety.

In addition, in the case of the present invention, as described above, through the free movement of the massaging balls in the universal direction, the frictional resistance generated between the massaging balls and the affected area to which the massaging balls are pressed is canceled out, so that both massaging balls can be moved. By rolling it along the affected area, it has become possible to simultaneously obtain an acupressure effect in addition to a massaging effect. In other words, it has become possible to enhance the pine surge effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the external appearance of the massaging machine according to the present invention, FIG. 2 is a sectional view of the same, and FIG. 3 is an exploded perspective view of the main parts. 1...Housing, 1A...Bottom plate, 1B...Cover body, 2...Through hole, 3...Gear case, 4...
...Motor, 5a, 5b... Bearing part, 6... Rotating shaft, 6a... Vertical shaft part, 6b... Inclined shaft part, 7
... Worm wheel, 8 ... Drive shaft, 9 ... Worm, 10 ... Spherical bearing, 11 ... Massage ball,
12...stopper, 13...alignment spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pair of left and right rotating shafts are provided facing each other, the tips of which are deflected so that they can freely swing and rotate, and a kneading ball is mounted on a spherical bearing at the tip of both rotating shafts. A massaging machine that is mounted so that it can freely move in the universal direction via the . (2) The massaging machine according to claim 1 of the utility model registration, characterized in that a centering spring is interposed at the distal end of the rotating shaft, one end of which is engaged with a spherical bearing.