JPH0143068Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a massaging machine that is mainly used for applying vibrations to the pelvis or to massage the feet, hands, shoulders, back, etc.

A. Prior Art A massaging machine is known in which a vibrator is fixed eccentrically to the shaft of a motor, and the vibrator is rotated by a motor to vibrate. The massaging machine with this structure has drawbacks such as the fact that each part vibrates due to the vibrator, which tends to generate harsh noises, and the holding parts tend to come off due to the vibrations.

B. Structure and purpose of this invention This invention was developed with the aim of eliminating this drawback.The massaging machine of this invention embeds the motor during casing molding, performs insert molding, and furthermore, It uses a synthetic resin that shrinks to some extent as it hardens, and is configured so that the vibrating surface, which is the outer periphery of the motor, is forced into close contact with the casing during hardening and molding.The important purpose of this invention is to: The motor is buried and tightly held within the casing, so no noise is generated between the motor and the casing, and the motor is completely and firmly held within the casing, so the motor will not fall out of the casing. We provide massaging machines.

C. Preferred Embodiment Hereinafter, one embodiment of this invention will be described based on the drawings.

The massaging machine shown in FIGS. 1 and 2 has a motor 1
, a vibrator 2 , and a casing 3 .

The motor 1 is a two-pole induction motor of a shaded coil type in which an iron core 4 and a coil 5 wound around the iron core 4 are exposed, and both ends of a shaft 6 are supported by bearings 7.

The vibrator 2 is eccentrically fixed to the shaft 6 of the motor 1 so that the motor 1 vibrates when the vibrator 2 is rotated.

The vibrator 2 consists of a weight 2A, an arm 2B fixed to the weight 2A, and a boss 2C fixing the arm 2B to the shaft 6. The boss 2C has a set screw passing through it in the radial direction. 8 and is fixed to the shaft 6.

The casing 3 is molded from a synthetic resin, such as polyester or epoxy, mixed with limestone or metal powder such as aluminum whose surface is insulated, which shrinks and forcibly adheres to the motor 1 when it hardens. has been done. Powder is usually weight ratio: 50
% or more, preferably 70% or more. just,
Powders do not necessarily need to be mixed, and it is also possible to mold them from 100% synthetic resin.

The motor 1 has an iron core on the entire outer circumferential surface with the shaft 6 as the center, as shown in FIGS. A vibrating surface 9 located around the entire circumference is inserted into the casing.

In FIG. 1, the motor 1 vibrates back and forth, left and right, that is, in a plane perpendicular to the plane of the paper. Therefore, in FIG. 1, the entire outer circumference of the iron core 4, which is the front, rear, left, and right sides of the iron core 4, and in FIG. It is held in close contact with 3.

The motor 1 is not fitted or fixed into a separately molded casing 3, but is inserted into the casing when the casing 3 is molded.

Therefore, the casing 3 is molded by temporarily fixing the motor in a mold, injecting an uncured paste-like synthetic resin mixed with inorganic powder between the motor and the mold, and hardening it in the mold. , the synthetic resin shrinks during curing to forcibly attach the case to the motor.

In FIG. 1, the upper surface of the bearing 7 supporting the upper side of the motor shaft 6 is not completely embedded in the casing so that the shaft 6 can rotate. A cavity 10 is formed in the part where the vibrator 2 rotates, and the upper surface of the vibrator 2 is closed with an arch-shaped upper cover 11.

The top cover 11 is separately molded on the main body portion of the casing 3 from the same material and is bonded to the main body after curing.

In FIG. 1, the lower cover 12 of the casing is also the upper cover 11.
Similarly, it is molded separately from the same material as the main body and bonded to the main body.

The casing 3 has an upper surface and a lower surface formed in a spherical shape with a convex center, and a central portion where the motor is buried is formed into a cylindrical shape.

As shown in FIGS. 1 and 2, the iron core 4 and the coil 5 are on the outer surface of the casing 3.
The one buried inside is such that the casing 3 clamps the iron core 4, and further clamps the iron core and the coil 5.
This has the effect of greatly reducing the noise caused by the vibration of the iron core of the motor 1 and the noise between the iron core 4 and the coil 5.

Although the massager of this invention is not shown in use, it can be placed under the pelvis or back to give vibrations to the pelvis or back, or it can be held in the hand to give vibrations to the hand. Place it on your hands and feet to vibrate your hands and feet to create a pine surge.

D Effects of this invention In the massaging machine of this invention, the motor is embedded or inserted into the casing during casing molding, and when the casing itself hardens, it contracts somewhat and is forced into close contact with the outer periphery of the motor. Furthermore, the motor has a vibration surface, which is the entire outer circumference with the shaft at the center, embedded in the casing. Therefore, even if the motor rotates the vibrator and is itself vibrated, the space between the motor and the casing, especially the outer peripheral surface of the motor that comes into contact with the casing during vibration, is brought into close contact with the casing under strong pressure. For this reason,
Not only is the vibration of the motor effectively transmitted to the casing, but the noise generated when the motor hits the casing can be minimized, and the casing vibrates almost silently.Furthermore, the motor is inserted into the casing. Since the motor is firmly held in place, the motor will not fall out of the casing during use.
It is strong, durable, and does not break down.

[Brief explanation of the drawing]

1 and 2 are vertical and horizontal cross-sectional views of a massaging machine showing an embodiment of this invention. 1... Motor, 2... Vibrator, 3... Casing, 4... Iron core, 5... Coil, 6... Shaft, 7...
... Bearing, 8 ... Set screw, 9 ... Vibration surface, 10 ...
Cavity, 11...upper lid, 12...lower lid.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a motor, a vibrator eccentrically fixed to the shaft of the motor, and a casing that holds the motor. When the motor rotates, the vibrator rotates and generates vibrations. A massaging machine configured such that a motor and a casing are vibrated by a child,
The casing is made of synthetic resin that shrinks when it hardens, and when the casing is molded, the motor is embedded and insert-molded within the casing.Furthermore, the entire outer circumferential surface of the motor with the shaft in the center is in close contact with the casing. The massaging machine is characterized in that the vibrating surface of the outer periphery of the motor is closely embedded and held in a synthetic resin casing that hardens and shrinks. (2) The massaging machine according to claim 1, wherein the casing is made of polyester resin containing at least 50% by weight of inorganic powder. (3) The massaging machine according to claim 1, wherein the casing has a spherical shape with a convex center on the upper and lower surfaces, and a cylindrical shape in the middle. (4) The massaging machine according to claim 1, wherein the iron core of the motor is directly embedded in the casing and is insert-molded.