JPH0446150B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a vibrating massage machine in which a vibrating motor is housed in a casing of a vibrating head connected to a grip.

[Background technology]

Conventionally, a vibrating massage machine in which a grip 1 and a vibrating head 5 are connected by an elastic body 2 and a motor 10 is housed in a casing 6 of the vibrating head 5 is known, for example, as shown in FIG.
It has been proposed in the Publication No. However, in this vibrating pine serge machine, no consideration is given to dissipating the heat generated by the coil of the motor 10 or the heat generated by the bearing part of the motor 10, and the motor 10 with high heat resistance is used or Unless the casing 6 of the vibrating head 5 is made of a high quality material, there is a problem that the motor 10 may be damaged or the casing 6 may be melted.

[Purpose of the invention]

The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vibrating pine surge machine that can prevent the temperature of the motor and casing from rising.

[Disclosure of the Invention] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 6. 1 to 4, a grip 1 is made of synthetic resin, and a vibrating head 5 is connected to the grip 1 via an elastic body 2, a cover 3, and a connector 4, and a power switch S is connected to the grip 1. is installed. The vibrating head 5 is made of a synthetic resin material and has a substantially cylindrical shape.
The second casing 6 is screwed onto the first casing 6 and is formed of a synthetic resin material into a substantially disk shape.
a casing 7 , a plurality of ribs 8 of the first casing 6 and a plurality of ribs 9 of the second casing 7
The outer periphery of the first casing 6 and the second casing are held by the connector 4 and the ribs 9.
The motor 10 is housed in a casing 7, a first cushion 11 is provided on the circumference of the first casing 6, and a second cushion 12 is provided on the second casing 7. Motor 1
0, an eccentric weight 14 and a fan 15 are provided on an output shaft 13, and ventilation holes 18 and 19 are formed in a ceiling plate portion 16a and a bottom plate 17 of a motor case 16, respectively. A ventilation path 10a is formed within the motor and communicates with ventilation holes 18 and 19 of the motor case 16.

Inside the second casing 7, a cylindrical portion 20 extends approximately concentrically with the motor 10. Inside this cylindrical portion 20, an eccentric weight 14 and a fan 15 are disposed. A first ventilation path 21 is formed by the ventilation path 20a inside the cylindrical portion 20 and the ventilation path 10a inside the motor. A second air passage 22 is formed outside the cylindrical portion 20 and the motor 10, that is, on the outer periphery of the first air passage 21. This second ventilation path 22
A plurality of openings 23 are formed at the base of the cylindrical portion 20 so that the upper end and the upper end of the first air passage 21 communicate with each other. In the first casing 6, a plurality of intake ports 24 communicating with the first air passage 21 and a plurality of exhaust ports 25 communicating with the second air passage 22 are arranged in an annular shape at the lower end of the vibrating head 5, respectively. The intake port 24 and the exhaust port 25 are formed at different positions in the axial direction. That is, the vibration head 5 is connected to the first air passage 21 and the second air passage 22.
A ventilation path is formed in the casing of the casing, and air is taken in from the intake port 24.
Air passage 10a between first air passage 21 and the inside of the motor
The air passes through the air passage 20a in the cylindrical portion 20, passes through the opening 23, passes through the second air passage 22 in the opposite direction, and is discharged from the exhaust port 25.

In this way, as shown by the air flow arrow in FIG. 1, the air flows through the fan 15 to prevent a rise in temperature, and the air intake and exhaust ports are provided at inconspicuous positions, which improves the appearance of the fan 15. Since the intake and exhaust positions are different, air whose temperature does not rise can always be taken in from the exhaust port 25 to the intake port 24 without being short-circuited, and a rise in temperature can be further prevented. In FIG. 5, the motor 10 of the eccentric weight 14
To explain the mounting structure for the eccentric weight 14,
The center of gravity a of the bearing 26 and the center of the first bearing 26 are aligned on a line c. This is because the excitation force due to the rotation of the eccentric weight 14 generates a very large reaction force (radial load) on the first bearing 26 and the second bearing 27, but the reaction force is received only by the first bearing 26. The reaction force on the second bearing 27 is set to 0, and the second bearing 27
In this case, the radial load due to the reaction force does not have to be considered, and it is possible to use a small and inexpensive bearing that only needs to take heat generation due to the circumferential speed of the output shaft 13 into consideration. In addition, in order to further suppress the temperature rise of the second bearing 27 in FIG. 5 and extend its life, the motor case 16 is attached to the bearing presser spring 28 that holds the second bearing 27, as shown in FIG. A connecting portion 29 that connects with the motor case 16 is extended to release heat to the motor case 16, which has a large heat capacity, thereby suppressing temperature rise.

Next, a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. In this embodiment, the ceiling surface of the second casing 7 at the connecting portion between the first air passage 21 and the second air passage 22 is formed with a curved surface portion 30 whose central portion protrudes inward. 1
The flow of air from the second air passage 21 to the second air passage 22 becomes smoother, and the cooling effect is enhanced, making it possible to use a motor with low heat resistance or to form the casing with a material with low heat resistance. be.
Further, as shown in FIG. 8, the fan 15 is formed integrally with the eccentric weight 14 from a metal material, so that the number of parts can be reduced, and assembly is easy and inexpensive.

〔Effect of the invention〕

As described above, the vibrating massage machine according to the present invention connects the grip and the vibrating head with an elastic body, and also forms an air passage in the casing of the vibrating head in which the motor is arranged, and connects the grip and the vibrating head with each other. A vibrating pine surge machine in which an intake/exhaust port is formed in the casing of the casing, which communicates with the outside of the casing. a first air passage consisting of a cylindrical part in which an eccentric weight connected to the shaft and a fan are arranged; and an air passage inside the motor that communicates with the inside of this cylindrical part through a vent hole in the motor; and a second air passage formed on the outer periphery of the air passage, which communicates one end of the first and second air passages with each other, and communicates the other end of the first and second air passages with each other. The air intake port and the exhaust port are formed at each end, and the positions of the intake port and the exhaust port are different from each other in the axial direction, so that the air flow within the ventilation passage is controlled by the fan. The casings of the motor and vibrating head are cooled by the air that is generated and taken into the ventilation path from the intake port, and the warmed air is exhausted from the exhaust port, effectively cooling the casing of the motor and vibrating head. Therefore, even if a highly heat-resistant motor is not used or the casing of the vibrating head is not made of a highly heat-resistant material, there is no need to damage the motor or melt the casing. The cooling distance can be lengthened by the first ventilation path and the second ventilation path, and the motor and casing can be cooled more efficiently. It is possible to always take in air whose temperature has not risen, thereby preventing a rise in temperature.

[Brief explanation of the drawing]

Figure 1 is a front view of the vibrating pine surge machine of the present invention with main parts cut away, and Figure 2 is taken along line X-X in Figure 1.
A sectional view, FIG. 3 is a YY sectional view in FIG. 1,
FIG. 4 is a view taken along arrow P in FIG. 1, FIG. 5 is a sectional view of the motor, FIG. 6 is a Z-Z sectional view in FIG. 5, and FIG. 7 is a vibration type in the second embodiment of the present invention. FIG. 8 is a perspective view of the eccentric weight same as above, and FIG. 9 is a sectional view of the conventional example. DESCRIPTION OF SYMBOLS 1... Grip, 2... Elastic body, 5... Vibrating head, 6, 7... Casing, 10... Motor,
13...Output shaft, 14...Eccentric weight, 15...Fan, 21, 22...Air passage, 24, 25...Intake/exhaust port.

Claims (1)

[Scope of Claims] 1. The grip and the vibrating head are connected by an elastic body, and an air passage is formed in the casing of the vibrating head in which the motor is disposed, and the air passage communicates with the outside of the casing of the vibrating head. The vibrating massaging machine has an air intake and exhaust port formed in its casing, and the ventilation passage is formed in the casing of the vibrating head on an axis substantially concentric with the motor, and is connected to an eccentric weight connected to the output shaft of the motor. a first air passage consisting of a cylindrical part in which the fan is arranged; an air passage inside the motor that communicates with the inside of this cylindrical part through a vent hole of the motor; a second air passage, communicating one end of the first and second air passages, and an intake port and a second air passage at the other ends of the first and second air passages, respectively. A vibrating pine surge machine characterized by forming an exhaust port and having the positions of the intake port and the exhaust port different in the axial direction. 2. The vibrating pine surge machine according to claim 1, wherein the ceiling surface of the casing is formed into a curved surface with a central portion protruding inward. 3. The vibrating pine surge machine according to claim 1 or 2, which is made to serve both as a fan and an eccentric weight.