JP2539693Y2 - Massage machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine, and more particularly to a bearing device such as a massage roller.

[0002]

2. Description of the Related Art Conventionally, a plurality of rollers are mounted on the outer peripheral surface of a horizontally disposed cylindrical body, and the cylindrical body is rotated by driving a motor to knock a foot or a calf placed on the cylindrical body by vibration. Massagers that give a massage are known. There is also known a massager in which a pair of disc-shaped fir members are attached to a main shaft arranged in a horizontal direction. The fir members are formed so that their opposing surfaces are inclined in opposite directions and the distance between the fir members can be adjusted. The user adjusts the spacing of the fir members appropriately according to the width of the calf etc.,
When the power is turned on, the fir member rotates together with the main shaft by the driving of the motor, and the fir operation is performed by the opening and closing movement of the opposed surface of the inclined fir member.

[0003] Further, there is known a massager having a roller and a fir member, and having a plurality of functions of roller massage and fir massage.

[0004]

In the above-described massage machine, since a human body is brought into contact with a roller or a fir member to massage the roller, a considerable load is applied to the main shaft of the roller or the fir member in both the radial direction and the thrust direction. . Therefore, the bearing is required to have sufficient load-bearing performance. In addition, in a massage machine that can adjust the interval between the fir members, a lead screw for adjusting the interval is accommodated in the main shaft, and the main shaft and the lead screw rotate independently of each other. Has become.

Therefore, a technical problem to be solved in order to provide a bearing device having a simple structure and high load-bearing performance and to reduce the cost arises, and the present invention solves the problem. With the goal.

[0006]

According to the present invention, in order to achieve the above object, a lead screw is coaxially arranged in a pipe-shaped main shaft driven by a motor, and a slide key screwed to the lead screw is provided. In a massage machine in which a massage member loosely fitted to the main shaft is engaged with a key groove formed in the main shaft and is connected to the slide key to be freely movable in the axial direction, the massaging of a bearing portion and an outer cylinder portion is performed. A cap having a double structure is formed, outer cylinders of the cap are respectively mounted on both ends of the main shaft, the lead screw is supported by the bearing, and the outer cylinder is fitted to the massage machine body. The present invention proposes a massage machine characterized in that the bearing is fixed to support the main shaft and the lead screw.

[0007]

The two ends of the lead screw accommodated in the main shaft are inserted into the bearings of a pair of caps each composed of a bearing portion and an outer cylindrical portion, and the outer cylindrical portion is mounted on both ends of the main shaft. A bearing that fits with the cap is attached to the massage machine main body, the cap is loosely fitted, and the main shaft and the lead screw are supported at predetermined positions.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Note that, for convenience of explanation, the configuration of the entire massage machine will be described. FIG. 1 is a plan view showing a state in which a cloth cover for covering the mechanism unit 2 of the massage machine 1 is removed. A motor 4, a circuit board 5, an operation switch board 6, and the like are attached to the lower case 3, and bearing fixing portions 9, 9 are provided in which main shafts 7 of the mechanism section 2 are provided near left and right side edges of the lower case 3 and the upper case 8. It is mounted in between.

The main shaft 7 penetrates a central input gear case 10, and a worm wheel 11 is fitted to the central portion as shown in FIG. 2, and power is transmitted through a worm gear 12 connected to the motor 4. The cylindrical bodies 13, 13 which are massage members loosely fitted on the main shaft 7 so as to be freely movable in the axial direction are provided with large-diameter end plates 15 at both ends of central cylindrical parts 14, 14 shown by chain lines in FIG. 3.
16, 15, 16 are fixed. The end plates 15, 16,
Rollers 17, 17 pivotally supported near the peripheral edges of 15, 16
, 18, 18 are arranged at appropriate intervals. In this embodiment, wide rollers 17, 17 and short and small rollers 18, 18 are alternately arranged at 60-degree intervals. In addition, 19,
Reference numerals 19 ... are ribs provided on the central cylindrical portions 14, 14.

The input gear case 1 of the inner end plates 16, 16
The end surface on the 0 side is inclined with respect to the main shaft 7, and inclined plates 20, 20 which are parallel to this end surface are provided so as to project therefrom.
20 through ball bearings 21 and 21
2, 22 are freely mounted. Fir member 2
2, 22 are rubber pressing pieces 2 provided with protrusions at appropriate intervals.
3 and 23 are attached to resin rings 24 and 24. 2
Since the two fir members 22, 22 are inclined in opposite directions to each other, when the main shaft 7 is rotated by the motor 4, the fir members 22, 22 are continuously opened and closed, and the human body such as a calf is damaged. be able to.

FIG. 4 is an exploded view of the mechanism section 2. The main shaft 7 inserted into the input gear case 10 is a hollow pipe,
Reference numerals 5 and 25 denote key grooves which are opened from both left and right end portions toward the center. The inner diameters of the cylinders 13 are substantially equal to the main shaft 7 and can slide along the main shaft 7. Reference numeral 26 denotes a lead screw accommodated in the main shaft 7, and screw portions 27, 27 having opposite directions are engraved near the left and right ends. 28, 28 are guide members fixed to the outer ends of the cylindrical bodies 13, 13,
As shown in FIG. 5, the slide key 29 is fitted into the notch 31 of the outer end plate 15, and the slide key 29 is inserted into the key groove 25 of the main shaft 7.
The screw 27 of the lead screw 26 is screwed. Then, the holding plates 32, 32 shown in FIG.
5 to fix the guide members 28, 28.

Next, the bearings 34, 34 of the resin caps 33, 33 are inserted into the lead screw 26 to project the end of the lead screw 26, and the outer cylinder 3
5 and 35 are mounted on the end of the main shaft 7. Numerals 36 and 36 denote cap-shaped thrust bearings fixed to predetermined positions of the upper and lower cases 3 and 8, and are mounted on the caps 33 and 33.
Reference numeral 37 denotes a brake plate fixed to the left end of the lead screw 26, and a rubber ring 38 is attached to the outer peripheral portion.

FIGS. 6 and 7 show the cap 33,
The bearing portion 34 and the outer cylindrical portion 35 are integrally formed, and the inner diameter of the bearing portion 34 is formed so as to support the lead screw 26. A radially engaging portion 39 is provided in a concave portion between the outer cylinder portion 35 and the bearing portion 34, and the engaging portion 39 is fitted into the key groove 25 of the main shaft 7 as shown in FIG. 7 and the cap 33 are integrally rotated.

As shown in FIG. 1, the thrust bearing 3 is attached to bearing fixing portions 9, 9 formed on the lower case 3 and the upper case 8.
6 and 36 are fitted to each other, and the mechanism 2 is attached. A solenoid 40 is fixed to the left side of the left bearing fixing portion 9, and the brake plate 37 is inserted into an inner peripheral portion of a band brake 41 attached to a plunger (not shown) of the solenoid 40. When the solenoid 40 is energized, the band brake 4
1 is pulled downward and pressed against the brake plate 37 to prevent the rotation of the lead screw 26.

If the motor 4 is energized, the worm gear 12
The main shaft 7 is rotated via the worm wheel 11.
The cylinders 13, 13 in which the slide keys 29, 29 are engaged with the key grooves 25, 25 of the main shaft 7 rotate in conjunction with the main shaft 7.
At this time, if the solenoid 40 is turned off, the lead screw 26 screwed to the guide members 28, 28 shown in FIG. Here, when the solenoid 40 is turned on and the lead screw 26 is braked, the guide member 2 that rotates with the cylinders 13
8 and 28 are sent in the opposite directions on the lead screw 26, respectively, are expanded or approached in accordance with the rotation direction of the main shaft 7, and when the entire cylindrical body 13 moves, the interval between the fir members 22, 22 can be freely adjusted. . The forward / reverse rotation of the motor 4 and the on / off of the solenoid 40 are performed by operating switches 42, 42,.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to those modifications.

[0017]

According to the invention, as described in detail in the above embodiment, the cap is mounted on both ends of the main shaft, the lead screw is supported by the center hole of the cap, and the cap is attached to the massage machine body. Support with bearings. Therefore, the configuration can be made with the minimum number of parts, the assembling becomes easy, and the effect of reducing the cost is exhibited. Further, if the cap is made of resin, the sliding noise is reduced, and the present invention is a practically valuable device that is effective in reducing the operation noise.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a massage machine.

FIG. 2 is a vertical rear view of the input gear case.

FIG. 3 is a partially cutaway plan view of a mechanism section.

FIG. 4 is an exploded view of a mechanism.

FIG. 5 is a side view of the outer end plate with the holding plate removed.

FIG. 6 is a sectional view of a main part of the bearing device.

FIG. 7 is a view taken along line AA of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Massager 4 Motor 7 Main shaft 9 Bearing fixing part 13 Cylindrical body 25 Key groove 26 Lead screw 28 Guide member 29 Slide key 33 Cap 34 Bearing part 35 Outer cylinder part 36 Thrust bearing

Claims (1)

(57) [Scope of request for utility model registration] 1. A lead screw is coaxially arranged in a pipe-shaped main shaft driven by a motor, and a slide key screwed to the lead screw is engaged with a key groove formed in the main shaft. In a massaging machine in which a massage member loosely fitted to the slide key is coupled to the slide key to form a cap having a double structure of a bearing portion and an outer cylinder portion, the cap is formed on both ends of the main shaft. The outer cylindrical portion of the cap is mounted, the lead screw is supported by the bearing portion, and a bearing fitted to the outer cylindrical portion is fixed to the massage machine main body to support the main shaft and the lead screw. A massage machine characterized by being formed as described above.