JP2801553B2 - Electric vibrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vibrator used for an electric toothbrush, a face brush or the like.

[0002]

2. Description of the Related Art In a conventional electric vibrator of this type, a motor for applying a vibration to a brush or the like as a vibrating member, and a battery accommodating a battery for supplying electric power to the motor are accommodated. And a switch for opening and closing power supply from the battery to the motor. An open / close switch having an independent configuration is used as the switch, and is electrically connected to a terminal of a motor or a battery via a lead wire.

[0003]

Therefore, in this conventional electric vibrator, the structure of the switch is complicated, the whole electric vibrator becomes large, and the wiring between the switch and the motor is troublesome, and it takes time to assemble. There was a problem.

[0004] Further, switches and wirings having a complicated configuration may not only be broken or disconnected due to vibration of a toothbrush or the like mounted as a vibrating member, but also the wirings may vibrate to generate unpleasant noise. There was a fear.

[0005] The present invention has been made by paying attention to such problems existing in the prior art. The purpose is to simplify the structure of the switch, reduce the size of the entire electric toothbrush, and easily perform wiring between the switch and the motor, thereby shortening the assembling time. In addition, an object of the present invention is to provide an electric vibrator capable of preventing breakage of a switch or the like and preventing generation of unpleasant noise.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a motor casing is formed of a conductive material, and a switch is connected to a terminal plate which is detachably connected to the motor casing. And an operating body for bringing the terminal plate into and out of contact with the casing of the motor.

According to a second aspect of the present invention, in the electric vibrator of the first aspect, an operation body of the switch is formed of an insulating material and is movably supported by the main body case. An advancing and retreating piece is provided between the motor and the casing of the motor.

[0008]

[Operation] In the electric vibrator configured as described above, when the operating body of the switch is operated in one direction,
The terminal plate contacts the motor casing, and power is supplied to the motor from the battery. Thereby, the motor is rotated to apply vibration to the vibrated body. Further, when the operation body of the switch is operated in the other direction, the terminal plate is separated from the motor casing, and the power supply from the battery to the motor is cut off. As a result, the rotation of the motor is stopped and the vibrated body is not vibrated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the main body case 1 is formed of a synthetic resin material into a cylindrical shape with one end opened, and a locking projection 2 is formed on the closed end surface thereof, and a through hole is formed on the outer peripheral upper surface. 3 are formed. The brush 4 as a vibrating member is detachably attached to the locking projection 2 of the main body case 1, and a plurality of anti-slip ridges 5 are formed on the outer periphery of the base end of the synthetic resin handle. This anti-slip ridge 5 is used when the brush 4 is replaced.
This is to facilitate the exchange.

As shown in FIGS. 1 to 3, the motor 6 is disposed in the main body case 1, and its casing 7 is formed of a conductive material (metal). The insulating protrusion 8 is formed on the upper end of one end of the motor 6, and a pair of positive and negative terminals 9, 10 protrude from both side surfaces thereof. The weight 11 is eccentrically attached to the motor shaft of the motor 6, and the weight 11 is eccentrically rotated with the rotation of the motor 6 to apply vibration to the brush 4 as a vibrating member.

A cylindrical battery case 12 as a battery accommodating portion made of a synthetic resin material is detachably attached to an open end of the main body case 1 via a seal ring 13.
A battery 14 for supplying electric power to the motor 6 is provided therein.
Are detachably accommodated. First negative connection plate 15
Is extended at the inner upper edge of the battery case 12, and a pair of contact portions 16 and 17 are formed at both ends thereof. The one contact portion 16 is configured to come into contact with the negative electrode of the battery 14.

A circular partition plate 18 made of a synthetic resin material
Is fitted to an open end in the main body case 1, a pair of mounting grooves 19 and 20 are formed on both upper sides thereof, and a mounting hole 21 is formed in the center. The pair of positioning projections 22 are formed on one side of the partition plate 18, and the positioning projections 22 engage with the concave grooves 23 on the outer periphery of the base end of the motor 6 so that the partition plate 18 is positioned at a predetermined position with respect to the motor 6. It is positioned and arranged. The synthetic resin such as the main body case 1 used in this embodiment contains a powder such as silver or zinc and has antibacterial properties. Therefore it is hygienic.

The second negative connection plate 24 is inserted into one of the mounting grooves 19 of the partition plate 18, the tip of which is in contact with the negative terminal 10 of the motor 6, and the base has a contact portion 25.
Are formed. Then, when the battery case 12 is attached to the main body case 1, the contact portion 17 of the first negative connection plate 15 contacts the contact portion 25 of the second negative connection plate 24. The positive connection plate 26 is the other mounting groove 2 of the partition plate 18.
0, the tip of which is in contact with the casing 7 of the motor 6 and the intermediate portion thereof is in contact with the positive terminal 9 of the motor 6.

A switch 27 is provided on the upper part of the main body case 1 and can open and close the power supply from the battery 14 to the motor 6 by this switch 27. That is, the terminal plate 28 is fitted into the mounting hole 21 of the partition plate 18, and the contact portions 29 and 30 are formed at the front end and the intermediate portion. The contact portion 29 at the tip is opposed to the casing 7 of the motor 6 so as to be able to contact and separate from above.
When the battery case 12 is attached to the main body case 1, the contact portion 30 in the middle portion contacts the positive electrode of the battery 14. In this embodiment, the connection plates 15, 2
4, 26, the terminal plate 28 and the like are made of phosphor bronze having a low electric resistance. Therefore, the battery life can be extended.

The operation body 31 is formed of an insulating material such as a synthetic resin, and is movably attached to the through hole 3 of the main body case 1 via a seal ring 32 for maintaining water tightness. The pair of reciprocating pieces 33 are formed so as to protrude from the lower surface of the operating body 31, and are moved and arranged between a position where the reciprocating member enters between the contact portion 29 of the terminal plate 28 and the casing 7 of the motor 6 and a position where the reciprocating member retreats therefrom. Then, as shown in FIG. 4, when the reciprocating piece 33 is disposed at the retreat position, the terminal plate 28
The contact portion 29 is contacted with the casing 7 of the motor 6, and as shown in FIG. 5, the contact portion 29 is separated from the casing 7 when the reciprocating piece 33 is located at the entry position.

Next, the operation of the electric vibrator configured as described above will be described. In the electric vibrator of this embodiment, when the operating body 31 of the switch 27 is moved to the brush 4 side, the advancing / retreating piece 33 is arranged at the retreating position as shown in FIG.
9 contacts the casing 7 of the motor 6. Thereby, the positive electrode of the battery 14 is connected to the contact portions 30 and 29 of the terminal plate 28, the casing 7 of the motor 6, and the positive connection plate 26.
Is connected to the positive terminal 9 of the motor 6. On the other hand, the negative electrode of the battery 14 is always connected to the negative terminal 10 of the motor 6 via the first negative connection plate 15 and the second negative connection plate 24. Therefore, electric power is supplied from the battery 14 to the motor 6, the motor 6 is rotated, and the brush 4 is vibrated by the eccentric rotation of the weight 11.

When the operating member 31 of the switch 27 is moved to the battery case 12 side from this state, the reciprocating piece 33 is arranged at the entering position as shown in FIG.
8 are separated from the casing 7 of the motor 6. As a result, a circuit between the positive electrode of the battery 14 and the positive terminal 9 of the motor 6 is opened, and the battery 14
The power supply to the motor 4 is cut off, the rotation of the motor 6 is stopped, and the brush 4 is not vibrated.

As described above, in the electric vibrator of this embodiment, the casing 7 of the motor 6 is formed of a conductive material. Further, the switch 27 includes a terminal plate 28 which is opposed to the casing 7 of the motor 6 so as to be able to contact and separate from the casing 7, and an operation body 31 for making the terminal plate 28 contact and separate from the casing 7 of the motor 6.

Therefore, unlike the conventional configuration in which an open / close switch having an independent configuration is used to electrically connect to the terminals of a motor or a battery by a lead wire, the structure of the switch 27 is simple and the entire electric vibrator is small. Can be In addition, since it is not necessary to electrically connect the switch 27 with a lead wire, wiring between the switch 27 and the motor 6 and the like can be easily performed, and the assembling time of the entire electric vibrator can be greatly reduced. Therefore, the manufacturing cost can be significantly reduced.

Furthermore, since there is no switch having a complicated configuration and no wiring connected by solder, there is no problem such as breakage or disconnection of the switch.
Moreover, since there is no wiring, there is no danger of unpleasant noise due to vibration of the wiring.

The present invention can be embodied by arbitrarily changing the configuration of each unit. For example, in another example shown in FIG. 6, the lower part of the battery case 12 is formed in a skirt shape, and a face brush brush 34 is mounted as a vibrating member. In this way, it is easy to hold when used, and it can be placed upright when not in use. Therefore, the brush portion is not grounded when not in use, so that it is sanitary. Other configurations are the same as those of the above embodiment. In addition, if the electric vibrator is used in common and only the vibrating body can be changed, various devices in which microvibration works effectively, for example, a toothbrush, a face brush, ear wax,
It can be used as a massage device. Further, the present invention can be used as an artificial pollinator for pollen. In this case, a cotton tuft is used as a vibrating body.

Next, technical ideas other than those described in the claims ascertained from the embodiment will be described. (1) In the first or second aspect, the operating body 31 moves in the through hole 3 of the main body case 1, and a seal ring 32 is provided between the operating body 31 and the main body case 1. Therefore, intrusion of water into the main body case 1 can be prevented. (2) In claim 1 or 2, a partition plate 18 is interposed between the main body case 1 and the battery case 12, and the terminals 24, 26, and 28 are supported by the partition plate 18. Therefore, it is not necessary to consider the mounting space and the support means of the terminals 24, 26, and 28 separately from the partition plate 18, and it is possible to reduce the size and simplify the configuration. (3) An antibacterial resin was used for at least one of the main body case 1, the battery case 12, and the vibrating body. Therefore, it is hygienic. Motor: In this specification, a motor is a general term for a drive means for applying vibration, and includes a motor that reciprocates at a predetermined stroke in addition to a rotary motor.

[0023]

Since the present invention is constructed as described above, the structure of the switch is simple, the whole electric vibrator can be downsized, and the wiring between the switch and the motor can be easily performed. And the assembly time can be shortened.

Further, according to the present invention, there is no risk of breakage or disconnection of the switch, and no unpleasant noise is generated.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment in which a toothbrush is mounted on an electric vibrator.

FIG. 2 is a cross-sectional view of the electric vibrator.

FIG. 3 is an exploded perspective view showing a configuration of a main part of the electric vibrator.

FIG. 4 is a partially enlarged sectional view showing an ON state of a switch.

FIG. 5 is a partially enlarged cross-sectional view showing an off state of the switch.

FIG. 6 is a perspective view of another example of an electric vibrator equipped with a face brush.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body case, 4 ... Brush, 6 ... Motor, 7 ... Casing, 11 ... Weight, 12 ... Battery case as a battery accommodating part, 14 ... Battery, 27 ... Switch, 28 ... Terminal plate, 29
... contact part, 31 ... operation body, 33 ... advance / retreat piece.

Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B06B 1/00 A61C 17/00 A46B 13/00

Claims (2)

(57) [Claims] 1. A motor for applying vibration to an object to be vibrated such as a brush, a battery accommodating section accommodating a battery for supplying electric power to the motor, and power supply from the battery to the motor. An electric vibrator provided with a switch for opening and closing the motor, wherein the casing of the motor is formed of a conductive material, and the switch is connected to the casing of the motor so that the terminal plate can be separated from the casing. An electric vibrator comprising an operating body for contacting and separating. 2. The switch according to claim 1, wherein an operation body of the switch is made of an insulating material, is movably supported by the main body case, and has a reciprocating piece that can reciprocate between a tip of the terminal plate and a casing of the motor. Electric vibrator.