JPS63219Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric shaver equipped with a cleaning mechanism.

Electric razors generally have a structure that collects shaved hair inside the shaver, so the inside must be cleaned periodically. Conventionally, such cleaning has been carried out by sweeping with a brush, but since the dust is in the form of fine powder, complete cleaning is nearly impossible and is time-consuming.

This device takes note of this fact and provides a cleaning fan rotated by a motor inside the inner blade storage chamber, and also provides an auxiliary battery in addition to the conventional main battery. During cleaning, the main and auxiliary batteries are connected in series to supply power to the motor, increasing the motor torque compared to when shaving, and rotating the cleaning fan as fast as possible, thereby achieving a high cleaning effect.

The details will be explained below based on the drawings.

In FIG. 1, the present electric shaver 1 includes an outer cutter holder 4 having a mesh-like outer cutter 3, which is removably screwed onto the upper end of the main body case 2, and a rotary inner cutter 5 which is inscribed in an external force 3. There is. The inner blade 5 is the inner blade storage chamber 6
The motor 1 is attached to the upper surface of the inner cutter holder 7 disposed in the inner cutter holder 7 , and has a boss 8 protruding from the lower wall 9 of the inner cutter storage chamber 6 .
It has a basic structure in which the inner blade 5 rotates in conjunction with energizing the motor 10 from the power source 12 and cuts the hair introduced through the outer blade 3.

The rotating shaft 11 of the motor 10 is sealed watertightly against the lower wall 9 of the inner cutter storage chamber 6 by packing 14.
A cleaning fan 1 is attached to the boss 8 of the inner blade holder 7.
5 is inserted, and the fan 15 is rotated simultaneously with the inner cutter holder 7 by the rotational drive of the motor 10. The shape of the blades 20 of the fan 15 is set so that air is sucked in from the outer cutter 3 by rotation of the fan 15 and exhausted through an air filter 19 provided on the circumferential surface 17 of the inner cutter storage chamber 6 so as to be freely openable and closable. Dust 21 such as beard dregs does not scatter outward from the outer cutter 3, but is deposited on the lower wall 9 in the inner cutter storage chamber 6 by the suction force of the fan 15.

A power supply unit 12 that supplies power to the motor 10 is configured with a main and auxiliary batteries 22 and 23 as a set,
The connection state is changed in conjunction with the switching operation of the operation knob 25 of the switch 24 provided on the peripheral surface of the main body case 2.

In FIG. 2, the switch 24 consists of two sets of changeover switches 26 and 27 and one set of on/off switches 28, which are switched in conjunction with the sliding operation of the operating knob 25. The positive terminals of the main and auxiliary batteries 22, 23 are connected to both contacts 29, 29 of the first switch 26, and the positive terminals of the main and auxiliary batteries 22, 23 are connected to both contacts 30, 3 of the second switch 27.
Connect the negative poles to 0, and connect the first
and switch pieces 3 of second switches 26 and 27
1 and 32 are connected to both ends of the motor 10, and the negative pole of the main battery 22 and the positive pole of the auxiliary battery 23 can be connected by a normally open third switch 28. Therefore, during normal shaving, both the first and second switches 26 and 27 are switched to the main battery 22 side as shown in FIG. 22 runs out of capacity and the motor 10 stops, the first and second switches 26 and 27 are switched to the auxiliary battery 23 side by switching the operation knob 25 as shown in FIG. By supplying power, the electric shaver 1 can be used continuously.

The present invention is characterized by a structure in which dust 21 accumulated in the inner blade storage chamber 6 is cleaned by the shaving operation.

That is, in FIG. 4, when the air filter 19 is moved by the sliding operation of the operation knob 25 and the window 33 provided on the circumferential surface 17 of the inner blade storage chamber 6 is opened, the first and second switches 26 and 27 are opened as shown in FIG. As shown in c, switch up and down and turn the third switch 2.
8 is closed, and the motor 10 is connected to the main and auxiliary batteries 22 and 22.
The sum of 23 voltages is applied to motor 1.
0 rotation torque is increased. Therefore, when the outer blade 3 is turned downward and the inner blade storage chamber 6 is placed in the water 34,
Despite the increase in resistance due to water, the motor 10 with increased torque is operated by the cleaning fan 15.
The cleaning fan 15 sucks water from the outer blade 3 and jets it out from the opening 33, and together with the water stream 37, the dust 21 in the room is strongly washed away.

5, 6, and 7 show different embodiments of the present invention, in which cleaning is performed by a cleaning fan 15 by reverse rotation of the motor 10.
Activate it. That is, in the case shown in FIG. 5, the main battery 22 and the auxiliary battery 23 are connected in series, and in conjunction with switching the switch 35, the voltage applied to the motor 10 is adjusted to the main battery 22 during normal use.
By making it possible to change from this alone to the sum of the terminal voltages of the main and auxiliary batteries 22 and 23 during cleaning, and by reversing the polarity of the voltage applied to the motor 10, the rotating shaft 11 of the motor 10 The blade rotates at a higher speed and in the opposite direction than when shaving.

On the other hand, the cleaning fan 15 has flap-shaped wings 20 on the lower surface of the inner cutter holder 7, as shown in FIG.
is pivoted so that it can swing freely, and when rotating forward, it is maintained in a substantially horizontal state as shown by the dashed line, but when rotating in reverse, it swings to a vertical position due to air resistance, and a jet flows into the inner cutter storage chamber 6. Cleaning may be performed by raising the storage chamber 6 and blowing out the dust accumulated in the storage chamber 6 from the outer blade 3 to the outside.

In the blade 20 shown in FIG. 7, the shape of the blade 20 is formed into a substantially horizontal plate shape with the end in the normal rotation direction slightly raised, so that the airflow that flows inward during normal rotation is directed toward the outer blade 3 during reverse rotation. It forms an air flow 38 in the direction shown in FIG.

Note that the configuration of the cleaning fan 15 is not limited to the above-mentioned one, and it either does not operate when the motor 10 rotates in the normal direction, or sucks dust into the inner blade storage chamber 6, and only directs dust to the outside when the motor 10 rotates in the reverse direction. Of course, as long as it can eject, the design can be changed as appropriate. Switch 24 except when cleaning
The cleaning fan 1 is switched from the rotation system of the motor 10 by a clutch mechanism or the like.
5 can be completely separated to reduce the load when shaving.

Furthermore, when shaving, the main or auxiliary batteries 22 and 23
Instead of using only one or the other alone,
They may be connected in parallel and used at the same time. Auxiliary battery 2
It is also possible to suppress the increase in volume due to addition of the auxiliary battery 23 by making the battery capacity of the battery 3 smaller than that of the main battery 22 side. Further, both batteries 22 and 23 may be rechargeable batteries, and a charging circuit may be built into the main body case so that power can be supplied from a commercial AC power source.

As explained above, according to this invention, the motor 10 is installed in the inner blade storage chamber 6 where dust 21 such as beard shavings accumulates.
In addition to disposing a cleaning fan 15 that can be rotated by a motor, an auxiliary battery 23 is provided in addition to a conventional main battery 22, and during cleaning, power is supplied to the motor 10 by connecting the main and auxiliary batteries 22 and 23 in series. Since the rotational torque of the motor 10 is increased compared to that during normal shaving, and the cleaning fan 15 is rotated as fast as possible, there is an advantage that a high cleaning effect can be exhibited.

[Brief explanation of the drawing]

Fig. 1 is a central vertical sectional view showing an embodiment of the present invention, Fig. 2 is an electric circuit diagram, Figs. 3 a to c are schematic diagrams illustrating the operating status of the circuit, and Fig. 4 shows a cleaning state. It is an explanatory diagram. FIG. 5 is an electric circuit diagram showing another embodiment of the present invention, and FIGS. 6 and 7 are schematic vertical sectional views showing different embodiments of the cleaning fan. 7...Inner blade holder, 10...Motor, 11...
Motor rotating shaft, 12...Power source unit, 15...Cleaning fan, 22...Main battery, 23...Auxiliary battery, 24...Switch, 33...Counter.

Claims (1)

[Claims for Utility Model Registration] (1) A power supply section 12 having main and auxiliary batteries 22 and 23, a motor 10 driven by the power supply section 12, and an inner blade holder attached to the rotating shaft 11 of the motor 10. 7 and the inner cutter holder 7 or rotating shaft 11
A cleaning fan 15 attached to the motor 10 and rotated by supplying power to the motor 10, and a power supply unit 1
2 and a switch 24 for switching the connection state of the motor 10, and in conjunction with the switching operation of the switch 24, power is supplied to the motor 10 from at least one of the main battery 22 or the auxiliary battery 23 during shaving, and during cleaning. An electric shaver characterized in that power is supplied to a motor 10 from main and auxiliary batteries 22 and 23 connected in series. (2) The motor 10 is rotated in reverse during cleaning,
The electric shaver according to claim 1, wherein the cleaning fan 15 operates only during the reverse rotation. (3) The electric shaver according to claim 2, wherein the cleaning fan 15 has a flap shape that lowers when rotated in reverse.