JPS5825986Y2 - vibrating electric razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating electric shaver equipped with an adjusting device that allows the vibrating rod to obtain the same amplitude for input power sources having different frequencies and voltages.

In the past, there were devices that switched based on frequency differences, or devices that switched based on voltage levels, but there was no device that could reliably deal with changes in voltage and station wave number. .

The present invention is a response to that need.

Hereinafter, one embodiment of the present invention will be explained. First, two different types of input power sources are an A with a frequency of 60 Hz and a voltage of 110 V.
Assume that the power source is a B power source with a frequency of 50 Hz and a voltage of 220 V.

Next, in FIG. 1, the vibrating electric shaver has a U-shaped fixed iron core 2 fixed to the inside of the main body case 1 with excitation coils 31 and 32 wound around each side leg. Furthermore, the vibrating rod 4 is provided with a movable iron core 5 at its lower end and is pivotally supported 7 between a pair of frames 6 and 6.

On both sides of the vibrating rod 4, a suppression coil spring 9 is provided between the plates 8 and 3 fixed between the frames 6 and 6.
, 9' are arranged to press the vibrating rod 4 in one direction.

In the above device, if the input voltage is actually the same but the frequency is different, the amplitude of the vibrating rod 4 and the coil springs 9, 9
The relationship between ′ and the spring force is as shown in Figure 3, and the same amplitude e
In order to obtain this, it is necessary to set the spring force to a small value a at the high frequency of 60 Hz, and increase the spring force to C at the low frequency of 50 Hz.

Generally, the larger the swing width, the greater the shearing force of the whiskers, but there are many types that do not have spring force adjustment and can be used at 50Hz and 60Hz, and the spring force is set to b.

However, with this, the swing width is d, and you cannot get enough.

By the way, the spring force adjustment device of the present invention will be explained next.
A contact plate 10 that contacts the outer end of one coil spring 9 is provided on the inner surface side of the plate body 8, and a through hole 1 formed in this plate body 8
1 has a screw cut in it.

Then, an adjustment screw 12 is screwed into this through hole 11.

Reference numeral 13 denotes a rotary heir coupled to the adjustment screw 12 to move it forward or backward to adjust the spring force of the suppression coil spring 9. A groove 15 is provided in the disc portion 14 for inserting an external screwdriver or the like. At the same time, an elongated hole 17 is provided at the tip of the shaft portion 16 that protrudes from the back surface, and is connected to the adjustment screw 12 by a pin 18 that is engaged with the elongated hole 17.

Further, reference numeral 19 denotes a coil spring whose one end abuts against the fixing plate 20 disposed between the adjustment screw 12 and always acts to urge the rotating heir 13 outward. The other end of the spring 19 is held in place, and a terminal plate 21 is fixed to upper and lower support walls 22, 22 and provided inside the main body case 1.

Thus, the terminal board 21 has five contacts 23, 24, 2.
5, 26 and 27 are attached, which are connected to the excitation coil 31, 32 and the power source.

The details will be explained with reference to the electrical circuit diagram in Figure 6.
Contacts 24 and 27 connected to each other by leads 28
One excitation coil 31 is connected between the contacts 23 and 25, and the other excitation coil 32 is connected between the contacts 23 and 26, and the contacts 23 and 25 are connected to a power source.

On the other hand, a pair of short-circuit contact pieces 29 and 30 are symmetrically attached to the back surface of the disk portion 14 of the rotary heir 13 described above.

Therefore, by turning this rotating heir 13, the shorting contacts 29, 30 connect to the contacts 23, 24, 25, 26 of the terminal plate 21.
, 27, so that the connection of the excitation coils 31, 32 can be switched between series and parallel.

That is, when used with a voltage of 110V and 220V, which is twice that, the voltage applied to the excitation coils 31 and 32 needs to be the rated voltage of 110V.
When it is 0V, it is connected in parallel, and when it is 220V, it is switched to series.

31 is a switch. In the above configuration, the operation of the present invention will be explained next. When the voltage is 110V and the frequency is 60Hz, the rotation knob 13 is activated by the suppression coil spring 9.
When it is loosened, its spring force is the value a in Figure 3,
In addition, the positions of the shorting contacts 29 and 30 are shown in solid lines in FIG. 6, and the terminals 24 and 23 and the terminals 26 and 25 are short-circuited, and the two exciting coils 31 and 32 are respectively connected to the power supply in parallel circuits. ing.

Therefore, when the switch 31 is turned on, the vibrating rod 4 vibrates,
Its width moves with e.

Next, place the device in a different power supply area, where the voltage is twice as high as 22
When using in an area where the voltage is 0 V and the frequency is 50 Hz, use a screwdriver etc. to open the rotary heir 13 with the groove 15 on its surface.
When rotated clockwise through , the adjusting screw 12 is pushed inward and compresses the suppression coil spring 9.

Therefore, first, the spring force increases and is set to a spring force of C.

At the same time, the short-circuit contact pieces 29 and 30 on the back side of the rotating heir 13, one of the contact pieces 29 that had been between the contacts 23 and 24 until now,
The other contact piece 30 is placed on the simple contact piece 24, and the contact piece 26 and the contact piece 25 are short-circuited until now, but the contact piece 26 and the contact piece 27 are short-circuited.

The state of this short-circuiting contact 29, 30 is shown by the broken line in FIG. is applied, the magnetomotive force becomes the same amount, and when the switch 31 is closed, the vibrating rod 4 reciprocates with the same amplitude e as the previous time.

In this way, it is possible to easily provide a complete device that allows the vibrating rod to have the same amplitude for two power supplies with different power supply voltages and frequencies.

As described above, the present invention provides an electromagnetic vibrating electric shaver with a rotating heir that can adjust the spring force of the coil spring that presses the vibrating rod from the outside, so that the same power supply can be used with varying frequency. In order to ensure that the vibration width is obtained by the vibrating rod, and also to obtain the same magnetomotive force for two different voltages, high and low, the electromagnet device is
A terminal plate to which a plurality of contacts each connected to the excitation coil wound around each side leg of the fixed iron core is attached is provided opposite the rotary heir, while the rotary knob is provided with a terminal plate that attaches a plurality of contacts respectively connected to excitation coils wound on each side leg of the fixed core. , by providing a short-circuiting contact that slides into the contact and switches and connects the excitation coil in series and parallel to the power supply, so that the rotary heir can simply be turned to either the left or right side for input power supplies with different frequencies and voltages. We provide a vibrating electric shaver that is equipped with a device that allows you to easily adjust the spring force and connect the excitation coils that generate electromagnetic force in series and parallel at the same time by simply turning it, resulting in the same vibration width of the vibrating rod. Yes, the practical effect is a dog.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a cross-sectional front view of the main part, Fig. 2 is a side view of the main body case on which the rotating heir is attached, and Fig. 3 is a suppressing coil spring for the vibration rod. The relationship between the spring force and the vibration width of the vibrating rod, and the characteristic diagram obtained when the frequency of the supplied power source is different. Figure 4 is an exploded perspective view of the components. Figure 5 is the rotating heir and terminal board. The perspective view of FIG. 6 is an electric circuit diagram. 31.32... Excitation coil, 2... Fixed iron core, 4...
・・Vibrating rod, 9, 9′・・Containing pressure coil spring, 13
... Rotating legitimate child, 23, 24, 25, 26, 27...
A plurality of contacts, 21... terminal board, 29.30... short circuit contact piece.

Claims (1)

[Scope of utility model registration request] In a device in which suppression coil springs are arranged on both sides of a vibration rod that is pivotally supported on the upper part of a U-shaped fixed iron core with an excitation coil wound around each side leg, the pressing force of the coil spring can be adjusted from the outside. In addition to providing a terminal plate, a terminal plate having a plurality of contacts respectively connected to the excitation coil is provided opposite to the rotation terminal plate, and the rotation terminal plate is in sliding contact with the terminal plate when it rotates from side to side. The vibrating electric shaver is provided with a short-circuiting contact for switching and connecting the excitation coils in series and parallel.