JPH11179283A - Vibration generator for portable equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easy the fitting of a vibrator to a motor rotating shaft and also to reduce variation of the fitting in a vibration generator that an eccentric vibrator is fitted to the rotating shaft of a motor by fixing the motor rotating shaft and the vibrator by screwing. SOLUTION: When this vibration generator is applied to a vibration generator incorporated in a portable communication equipment, a vibrator 1 having the eccentric shape is provided. The vibrator 1 is fitted to a motor rotating shaft 3 by screwing a male screw 3c provided in the motor rotating shaft 3 onto a female screw 1a provided on the vibrator 1. When screwing, the motor rotating shaft 3 is fixed by pressing a fixed groove 3c provided on the motor rotating shaft 3 by a tool or the like so that it is not rotated. When the motor rotating shaft 3 and the vibrator 1 are thus fixed by screwing, variation of the fitting can be reduced and they are firmly joined. And the rotating direction of the motor rotating shaft 1 and the screwing direction of the vibrator 1 are made opposite to each other, thereby preventing the looseness, falling, or the like of the vibrator 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generator for portable equipment used for generating vibration of portable equipment.

[0002]

2. Description of the Related Art Conventionally, in a vibration generator for portable equipment, a vibrator has been attached to a rotating shaft of a motor by caulking. An example of such a conventional example is disclosed in Japanese Patent Application Laid-Open No. H7-11842.
No. 47, JP-A-7-184248, JP-A-7-184248
What is described in -336750 is known.

[0003]

However, in the above-mentioned conventional vibration generating apparatus, since there is an operation of caulking the vibrator to the rotating shaft of the motor, it is necessary to prepare a special jig for this purpose.

In addition, since the vibrator attached to the motor rotation shaft cannot be easily removed by swaging, it is necessary to replace the entire vibrator in order to replace the vibrator.

[0005] Further, there has been a problem in the strength of attachment to the motor rotating shaft due to the variation in swaging.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a vibration generator for portable equipment which makes it easy to mount a vibrator on a rotating shaft of a motor and has little variation in the mounting. Aim.

[0007]

In order to achieve the above-mentioned object, a vibration generator for portable equipment according to the present invention has a structure in which a motor rotating shaft and a vibrator are attached by screws.

[0008] According to this configuration, the vibrator can be firmly attached to the motor rotation shaft by an easy attaching operation without using special jigs and with a small attachment variation.

Here, the vibrator preferably has a slot for using a flathead screwdriver at the time of screwing with the rotary shaft and a cross groove for using a plusdriver. Alternatively, a groove for using a general-purpose driver other than a minus driver and a plus driver may be provided.

Further, when the direction of tightening of the vibrator screwed to the rotating shaft is opposite to the direction of rotation of the motor, the screws can be prevented from loosening or falling off.

Since the vibrator is detachable from the motor, it is easy to replace the vibrator, and it is not necessary to replace the entire motor as in the prior art.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a vibration generator of a portable communication device according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a vibrator which is eccentric in the axial direction. It has the function of generating vibration when rotated by this eccentricity.

The rotational movement of the vibrator 1 is performed by transmitting the rotation of a motor 2 through a motor rotation shaft 3. Therefore, the male screw 3a provided on the motor rotation shaft 3 and the female screw 1a provided on the vibrator 1 are screwed and attached. At the time of screwing, the motor rotating shaft 3 is fixed using a fixing groove 3c provided on the motor rotating shaft 3 so as not to rotate.

According to the above configuration, the vibrator 1 is
The rotational motion is transmitted to. Motor rotating shaft 3 and vibrator 1
Are fixed by screwing, so that there is little variation in attachment and the connection can be made firmly.

As shown in FIG. 2 and FIG.
By providing the slit groove 1b or the cross groove 1c in the head of the motor, the motor can be attached to the motor rotating shaft 3 using a normal flathead or plus screwdriver.

Further, by setting the rotation direction 3b of the motor rotating shaft and the vibrator screw tightening direction 1d to be opposite directions, the vibrator 1 is not loosened or dropped when the motor is rotated. Have.

[0017]

As described above, according to the present invention,
It is possible to provide a vibration generator for a portable device, which does not require a special jig and has a small variation in mounting of a vibrator.

Further, since the vibrator can be easily attached to and detached from the motor, there is an effect that one motor can be replaced with several different types of vibrators.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a vibration generator of a portable communication device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a vibrator provided with a slot in a head according to an embodiment of the present invention.

FIG. 3 is a perspective view of a vibrator provided with a cross groove in a head according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillator 1a Oscillator internal thread 1b Slot slot 1c Cross groove 1d Oscillator screw tightening direction 2 Motor 3 Motor rotation shaft 3a Motor rotation shaft male screw 3b Motor rotation shaft rotation direction 3c Motor rotation shaft fixing groove

Claims (6)

[Claims] 1. A vibration generator comprising a motor and an eccentric vibrator attached to a rotating shaft of the motor,
A vibration generator for a portable device, wherein a rotating shaft of the motor and a vibrator are fixed by screwing. 2. The vibration generator for a portable device according to claim 1, wherein the vibrator has a slot for using a flathead screwdriver when screwing the vibrator with the rotating shaft. 3. The vibration generator for a portable device according to claim 1, wherein the vibrator has a cross groove for using a Phillips screwdriver when screwing the vibrator with the rotating shaft. 4. The vibration generator for a portable device according to claim 1, wherein the vibrator has a groove for using a general-purpose driver other than a flathead screwdriver and a flathead screwdriver. 5. The vibration generator for a portable device according to claim 1, wherein a tightening direction of the vibrator screwed to the rotation shaft is opposite to a rotation direction of the motor. 6. The vibration generator according to claim 1, wherein the vibrator is detachable from the motor.