JP2001204779A - Massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the fear of catching a finger in intervals between fitting bases and massage rollers by covering the intervals by a cover 36 in any kind of state. SOLUTION: The two pairs of massage rollers 22a, 22b and 22c, 22d being inclined with respect to a driving shaft 9 are fixed to the shaft 9 which is supported between the opposing fitting bases 2 and 3 of a machine body case 1, the intervals between the massage rollers are changed by the rotation of the driving shaft, and then, a part to be treated, which is placed between the rollers, is massaged. The fitting base is integrally provided with the cover 36 for covering the intervals between the fitting bases and the massage rollers opposing to the bases. The upper half part of the cover is a hemi-cylindrical shape with a diameter being larger than the maximum diameter of the massage roller and its tip comes above the rollers when the intervals between the fitting bases and the rollers become the largest.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive shaft supported between mounting bases facing each other in a main body case, and at least a pair of rubbing rollers inclined with respect to the drive shaft are attached to each other. The present invention relates to a massage machine that massages a treatment target placed between kneading rollers by changing the interval of the massager.

[0002]

2. Description of the Related Art Conventionally, in this type of massage machine, the distance between a pair of rubbing rollers changes due to the rotation of a drive shaft, so that the distance between a mounting base and rubbing rollers facing the same also changes. For this reason, when a finger or the like is pushed between the mounting base and the rubbing roller, there is no problem if the distance between the mounting base and the rubbing roller is wide, but there is a possibility that the finger will be pinched if the distance becomes narrow.

Japanese Patent Application Laid-Open No. Hei 5-111518 discloses a taper-shaped cylinder formed on an end face of a kneading roller facing a mounting base so as to fill a gap having a tapered cross section formed between the kneading roller and the mounting base. Has been devised. However, even with such a device, a space is required between the end face of this tube and the mounting base because the tube rotates due to the configuration, and from this space, fingers such as small children's fingers are inserted or mischiefs like sticks However, there is a risk that the internal drive shaft may be damaged due to the insertion, and this cannot be said to be a sufficient measure in terms of safety and quality.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a safe and high quality massage machine in which a finger or a stick is not inserted between a mounting base and a rubbing roller. Make it an issue.

[0005]

According to the present invention, a drive shaft is supported between opposed mounting bases of a main body case, and at least a pair of rubbing rollers inclined with respect to the drive shaft are attached to the drive shaft. A massage machine that changes the distance between the rubbing rollers by rotating the massager and massages the treatment site placed between the rubbing rollers. The mounting base covers the space between the mounting base and the rubbing roller facing the mounting base. A cover is provided.

With this configuration, the space between the mounting base and the rubbing roller facing the mounting base is covered by the cover. However, since the cover is provided on the mounting base side, its size is hardly limited, and the size of the cover is small. It is possible to set the dimension so that it can be completely covered by the cover even if the interval changes due to the rotation of the drive shaft, becoming wider or narrower, thereby improving safety and quality.

Specifically, at least the upper half of the cover has a semi-cylindrical shape having a diameter larger than the maximum diameter of the kneading roller, and the tip of the cover extends when the space between the mounting base and the kneading roller becomes the largest. By locating on the rubbing roller, the gap between the mounting base and the rubbing roller can be completely covered.

Further, by integrally molding the cover with the mounting base, the assembly can be simplified and the cost can be reduced without increasing the number of parts.

Specifically, the main body case is divided into upper and lower parts, and a semi-cylindrical cover having an open lower half is integrally formed on an upper mounting base, and a cylindrical cover having an upper opening on the lower mounting base. Are integrally formed.

Here, the lower sides of the cylindrical covers formed on the left and right lower mounting bases may be connected to each other.
By doing so, the space between the left and right mounting bases is reinforced, and the main body case is reinforced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A massage machine according to the present invention will be described with reference to FIGS. Reference numeral 1 denotes a main body case made of a synthetic resin having a U-shaped planar shape.
It is configured to be divisible. A kneading roller described later is provided between the opposed mounting bases 2 and 3 of the main body case 1. A portion connecting the mounting bases 2 and 3 of the main body case 1 becomes a handle 4. Reference numerals 5 denote legs for installing the main body case on the floor.

A motor 6 is provided in the mounting base 3. The motor 6 is fixed to the mounting base 3 by the mounting bracket 8 via the rubber 7 for vibration isolation. The driving force of the motor 6 is transmitted to the drive shaft 9 via the reduction gears of the worm 12 and the worm wheel 11. Reference numeral 10 denotes a gear case that houses the reduction gear. The worm wheel 11 has a drive shaft 9
The worm 12 is connected and fixed to the shaft of the motor 6. 13 is a control unit for controlling the motor 6,
Reference numeral 14 denotes a power cord.

The drive shaft 9 is rotatably supported by bearings 15, 15 between opposing walls of the mounting bases 2, 3. The bearings 15, 15 are sandwiched between the upper and lower body cases 1.

The drive shaft 9 has a pair of rubbing rollers 22a, 22b and 22 inclined in opposite directions.
c, 22d are attached. (Hereinafter, in FIG. 1, the left pair of rubbing rollers 22a and 22b are collectively referred to as 22L, and the right rubbing rollers 22c and 22d are collectively referred to as 22R.) Each of the rubbing rollers 22a to 22d is It is composed of a kneading base 23 fixed in the rotation direction and rotating integrally with the drive shaft 9, and an idler 25 rotatably mounted on the outer periphery of the kneading base 23 via a plurality of steel balls 24. The idler portion 25 includes an outer annular pressing plate 26 having a sliding surface with respect to the steel ball 24, an inner annular pressing plate 27, and a rubbing body 28 formed of an elastic body sandwiched between the two annular pressing plates 26, 27. Consists of Inner annular holding plate 2
7, a plurality of openings are arranged in the circumferential direction, and elastic projections 29 formed on the massaging body 28 project from the openings.
Reference numeral 30 denotes a screw connecting the two annular holding plates 26, 27.

Here, of the rubbing base 23, the rubbing rollers 22b, 2b inside the pair of rubbing rollers 22L, 22R.
The rubbing base 2c is formed integrally with the rubbing roller 2 on the outer side.
The kneading bases 2a and 22d are independent of each other. Therefore,
In order to distinguish these kneading bases, the kneading base for the outer kneading rollers 22a and 22d is 23a, and the kneading base for the inner kneading rollers 22b and 22c is 23b.
These are collectively referred to as 23.

Then, when the drive shaft 9 rotates, the kneading base 2 is rotated.
3 rotates, but when the load is applied, for example, by inserting a treatment site such as a foot between the pair of free-rotating portions 25, 25, the free-rotating portion 25 involves rolling of the steel ball 24. Since the sliding surface of the steel ball 24 is not parallel to the axis of the drive shaft 9 and is inclined, the operation of moving the steel ball 24 toward and away from the opposing surface by changing the tilt angle with respect to the drive shaft 9 is repeated. . Therefore, it is possible to massage and massage the treatment site sandwiched therebetween. At this time, the projection 29 presses the massaged site.

By the way, the rubbing rollers 22a and 22b forming one pair of rubbing rollers 22L and the rubbing rollers 22c and 22d forming the other pair of rubbing rollers 22R are:
Although it is symmetrically inclined in the opposite direction with respect to the drive shaft 9, the inclination has a phase difference of 180 degrees.

That is, the respective rubbing bases 23a and 23b are fixed to the drive shaft 9 so that the outer rubbing rollers 22a and 22d are parallel to each other and the inner rubbing rollers 22b and 22c are parallel to each other. As a result, for example, when the interval between the pair of rubbing rollers 22a, 22b on the left side is narrow, the interval between the pair of rubbing rollers 22c, 22d on the right side is wide, and conversely, the interval between the pair of rubbing rollers 22a, 22b. When the distance is wide, the interval between the pair of rubbing rollers 22c and 22d is reduced.

Therefore, each pair of rubbing rollers 22L and 22R
The treatment site such as both feet placed between the pair of rubbing rollers is pressed by the rubbing member 28 alternately without being pressed simultaneously. As a result, the burden on the human body is reduced. In addition, since an excessive load is not simultaneously applied to the kneading rollers of each set, the load on the motor 6 as a driving source is small, and the motor 6 can be downsized.

Further, even if the two sets of kneading rollers 22L and 22R are arranged in the axial direction, they have the above-mentioned arrangement relationship, so that the overall width of the massage machine (the length in the direction of the drive shaft 9) is minimized. Can be suppressed.

A pair of kneading rollers 22 of each set of the drive shaft 9
A cylindrical spacer 32 rotated by the drive shaft 9 is attached between the a, 22b and 22c, 22d.
It is protected so that it does not penetrate too deep between 22b and between 22c and 22d. Although not shown in this spacer 32,
If a stimulating projection is provided, the sole can be stimulated by the projection while, for example, rubbing the foot with each pair of rubbing rollers 22L and 22R.

In the present invention, the mounting bases 2 and 3 are integrally formed with the mounting bases 2 and 3 so that a finger or the like is not inserted between the mounting bases 2 and 3 and the rubbing rollers 22a and 22d facing the mounting bases 2 and 3. The cover 36 is formed so as to cover the gap between the rollers 22a and 22d.

At least the upper half 36a of the cover 36 has a semi-cylindrical shape having a diameter larger than the maximum diameter of the kneading rollers 22a and 22d, and its axial length is set such that its tip is kneaded with the mounting base. The dimension is set so as to be located on the kneading roller when the space between the rollers is the largest (indicated by the interval B in FIG. 1). Thereby, the space between the mounting base and the rubbing roller can be completely covered in any state.

The cover 36 is formed by integrally forming the above-mentioned semi-cylindrical cover 36a having an open lower half with the upper mounting base of the main body case 1 having a vertically divided structure, and opening the upper side to the lower mounting base. The cover 36b is integrally formed so that the cover 36 is formed simultaneously when assembling the upper and lower divided main body cases.

The cover 36 prevents a finger or the like from being inserted and pinched between the mounting bases 2 and 3 and the rubbing rollers 22a and 22d facing the mounting base. Damage to the drive shaft 9 can also be prevented, and safety and stability in quality can be ensured.

The left and right lower cylindrical covers 36
The lower sides 36c of b are connected by a connecting plate (not shown). The connecting plate is formed integrally with the lower side 36c.
By doing so, the space between the left and right mounting bases 2 and 3 is reinforced, and the main body case 1 is reinforced.

The rubbing rollers 22L and 22R and the cover 36 are covered with a cloth cover 35, and the treatment site such as a foot is rubbed with the rubbing rollers 22a, 22b and 22 through the cover 35.
The massage is performed between 2c and 22d as described above. At this time, the cylindrical cover 36
Also has a function of preventing the cloth cover 35 from being caught between the outer rubbing rollers 22a, 22d and the mounting bases 2, 3. In addition, each inner kneading roller 22
In order to prevent the cover 35 from being caught between the b and 22c, the cover 37 is attached to the rubbing base 23b.
Is attached.

In the above embodiment, the rubbing rollers 22a and 22b constituting one pair of rubbing rollers 22L and the rubbing rollers 22c and 22b constituting the other pair of rubbing rollers 22R are provided.
2d, the phase difference of the inclination with respect to the drive shaft 9 is shifted by 180 degrees, that is, when the interval between the rubbing rollers 22a and 22b is narrow, the interval between the rubbing rollers 22c and 22d is wide, and conversely, between the rubbing rollers 22a and 22b. When the interval is large, the interval between the rubbing rollers 22c and 22d is configured to be narrow, but this phase difference may not be 180 degrees and is zero, that is, when the interval between the rubbing rollers 22a and 22b is small. The distance between the rubbing rollers 22c and 22d may be narrow, and when the distance between the rubbing rollers 22a and 22b is wide, the distance between the rubbing rollers 22c and 22d may be widened.

In the above embodiment, only two pairs of rubbing rollers 22L and 22R are attached to the drive shaft 9, but the rubbing rollers 22b and
The rubbing base 23b of 2c is divided and both rubbing rollers 22b are divided,
For example, a rotating roller 16 as shown in FIG.

In FIG. 1, the rotating roller 16 includes a pair of support cylinders 17 fixed to the drive shaft 9, support flanges 18 provided around the outside of the support cylinder 17, and the support flange 18. , 18 are provided with a plurality of roller shafts 19 erected and supported at equal intervals in the circumferential direction. The roller shaft 19 has a stimulating ball 20 serving as a stimulating projection and a stimulating ball 20. Spacer 21 for preventing displacement
Are rotatably supported, respectively. The roller shaft 19 has two stimulating balls 20 and 20 supported on both sides and one spacer 21 at the center, and one stimulating ball 20 at the center and two spacers 21 and 21 on both sides. Are alternately arranged in the circumferential direction of the support flange 18.

The rotation of the drive shaft 9 causes the rotation of the rotary roller 16, and the stimulating ball 20 revolves around the drive shaft 9 while rotating, and stimulates and massages a massaged site such as the sole of the foot.

In FIG. 3, each pair of rubbing rollers 22
L and 22R, the rubbing bases 23a of the outer rubbing rollers 22a and 22d are fixed to the drive shaft 9 not only in the rotation direction but also in the axial direction.
The rubbing bases 23b of 2b and 22c are slidable in the axial direction. An elastic body (coil spring) 31 that constantly urges the rubbing base 23b outward is interposed between the rubbing base 23b and the support cylinder 17 of the rotating roller 16. FIG. 3 shows the inner kneading rollers 22b and 22c.
Are located on the outermost side, and each pair of rubbing rollers 22a, 22
This is the state in which the interval between b and 22c, 22d is the narrowest.

This is because the kneading rollers 22a, 22b and 2
When a load larger than the treatment site is applied between 2c and 22d, the inner kneading rollers 22b and 22c are
This is for retracting inward (center side of the massage machine) against the pressure, expanding the interval between the pair of rubbing rollers 22a, 22b and 22c, 22d, and preventing excessive pressure from being applied to the massaged site. .

In FIG. 3, the drive shaft 9 between each pair of the pair of rubbing rollers 22a, 22b and 22c, 22d is shown.
A sphere 33 serving as a stimulating projection is rotatably attached to the spacer 32 attached to the pair by a shaft 34.
R can stimulate the sole while rubbing the foot.

In FIG. 3, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description is omitted.

[0036]

According to the first aspect of the present invention, the mounting base is provided with a cover for covering and hiding the space between the mounting base and the kneading roller facing the mounting base. It is hard to be restricted by its size because it is provided in, and it can be set to a dimension that can be completely covered by the cover even if this interval changes wide or narrow due to the rotation of the drive shaft, and as a result, Fingers and the like will not be inserted and pinched, and it will be possible to prevent a rod or the like from being inserted by mischief and damage to the drive shaft, thereby ensuring safety and stability in terms of quality. .

According to the invention of claim 2 of the present application, at least the upper half of the cover is formed in a semi-cylindrical shape having a diameter larger than the maximum diameter of the rubbing roller, and its tip is provided between the mounting base and the rubbing roller. Is set so that it is located on the kneading roller when it is widest, so that the gap between the mounting base and the kneading roller can be completely covered in any state, and safety and quality Can be further improved.

According to the third aspect of the present invention, since the cover is formed integrally with the mounting base, the number of parts can be increased and the cost can be reduced. The main body case is divided into upper and lower parts, and a semi-cylindrical cover with an open lower half is integrally formed on an upper mounting base, and a cylindrical cover with an upper open side is integrally formed on a lower mounting base. When assembling the two-part body case, the cover can be formed at the same time, so that the cost can be reduced and the assembly can be simplified.

According to the invention of claim 5 of the present application, since the lower sides of the cylindrical covers formed on the left and right lower mounting bases are connected to each other, the space between the left and right mounting bases is reinforced, and the main body is thereby removed. Reinforce the case

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a massage machine of the present invention.

FIG. 2 is a side vertical sectional view of the massage machine.

FIG. 3 is a cross-sectional plan view of a massage machine showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 2 Mounting base 3 Mounting base 9 Drive shaft 22a Kneading roller 22b Kneading roller 22c Kneading roller 22d Kneading roller 36 Cover

Claims (5)

[Claims] 1. A drive shaft is supported between opposed mounting bases of a main body case, and at least a pair of rubbing rollers inclined with respect to the drive shaft are attached to the drive shaft, and the distance between the rubbing rollers is set by rotation of the drive shaft. A massager for massaging a treatment site placed between rubbing rollers by changing the size of the rubbing roller, wherein the attachment base is provided with a cover that covers and hides a space between the attachment base and the rubbing roller facing the attachment base. At least an upper half of the cover has a semi-cylindrical shape having a diameter larger than a maximum diameter of the massaging roller, and a tip thereof has a massaging roller when the space between the mounting base and the massaging roller is widest. 2. The massage machine according to claim 1, wherein the massage machine is located above. 3. The massage machine according to claim 1, wherein the cover is formed integrally with the mounting base. 4. The main body case is divided into upper and lower two parts,
4. The massage machine according to claim 3, wherein a semi-cylindrical cover whose lower half is open is integrally formed on the upper mounting base, and a cylindrical cover whose upper side is open is integrally formed on the lower mounting base. 5. The lower sides of the cylindrical covers formed on the left and right lower mounting bases are connected by connecting the lower sides of the cylindrical covers formed on the left and right lower mounting bases. The massage machine according to claim 4, wherein