JPH0246227B2 - DENKI KAMISORI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an electric shaver in which a razor head having inner and outer cutters can be tilted back and forth.

In this type of electric shaver, in addition to the first battery that is normally used, a second battery is built in as a backup power source, and if a switch is provided to selectively switch between the first battery and the second battery, the following can be achieved. Benefits can be obtained. In other words, when a rechargeable battery is used as the first battery for normal use, when the battery capacity decreases due to use, a spare second battery can be used by operating the selector switch operation knob. It is convenient that the razor can be used immediately even after the capacity of the first battery decreases without waiting for the time required to charge the first battery.

However, in this case, when using the razor, in addition to the operation of tilting the head portion forward or backward, it is necessary to operate the changeover switch operation knob, which makes the operation laborious.

Focusing on this fact, the present invention is based on the premise that a first battery for normal use and a spare second battery are built-in, and the opening/closing operation of energizing the load of each battery is controlled by tilting the razor head. It is designed so that it can be performed in conjunction with the action, thereby simplifying its operability.

Another object of the present invention is to prevent misidentification and confusion during operation by using the first battery and the second battery differently based on the difference in the direction in which the razor head is tilted.

The details will be explained below based on the drawings.

FIGS. 1 and 2 show an embodiment of an electric shaver according to the present invention, in which a main body case 1 has a head portion 2 that can be tilted back and forth in the upper part.
has. The head portion 2 has a mesh-like outer cutter 3,
It includes a vibrating inner cutter 4 that slides into contact with the inner surface of the outer cutter 3. Inside the main body case 1, there are a motor 5 that drives the inner blade 4, a first battery 6 for normal use that supplies power to the motor 5, and a second battery 7 for backup.
Built-in. The first battery 6 and the second battery 7 may be either storage batteries or dry batteries, and it does not matter whether they are rechargeable or not. For example, the first
An AA-sized nickel cadmium storage battery is used as the battery 6, and an AA-sized dry battery is used as the second battery 7, so that the batteries have different capacities.

As shown in FIG. 9, a first switch 8 is inserted in the circuit for supplying electricity to the motor 5 of the first battery 6 and controls the timing of use of the first battery 6, and a first switch 8 is inserted in the circuit for supplying electricity to the motor 5 of the first battery 6. A second switch 9, which is interposed in the energizing circuit of the main body case 1 and regulates the usable period of the second battery 7, is disposed one behind the other inside the main body case 1, and furthermore, on the front side of the main body case 1, a first A switch operation knob 27a of a push-type main switch 27 is provided in the common line of the second batteries 6, 7 and is capable of controlling the drive timing of the motor 5. A first switch is connected between the first switch 8 and the second switch 9 and the head section 2 in conjunction with the forward and backward tilting movement of the head section 2.
Means for operating the switch 8 and the second switch 9 is provided.

To give one specific example of this means, an operating rod 10, which is E-shaped when viewed from the side, is horizontally disposed above the first switch 8 and the second switch 9. The operating rod 10 has head receiving portions 16, 17 facing upward via flanges 16a, 17a at the front and rear upper portions, switch pressing portions 18, 19 at the front and rear lower portions, and a vertically elongated central portion. It has a hole 12, and is supported so as to be tiltable back and forth by loosely fitting the vertically elongated hole 12 into a support shaft 15 fixed to the main body case 1 side. The front and rear switch pressing portions 18 and 19 are close to and opposite to each other above the first switch 8 and the second switch 9, respectively. Further, the entire operating rod 10 is constantly urged upward by a spring 20. Under this upward bias, the front and rear head receivers 16 and 17 of the operating rod 10 protrude upward from holes 23 and 24 opened in the front 21 and rear 22 of the upper wall of the main case 1, respectively.

In such a case, when the head portion 2 is in a neutral state located on the axis Y of the main body case 1 as shown in FIGS. Main case 1
It is in a state of floating away from the front part 25 and rear part 26 of the upper wall, and both the front and rear head receivers 16 and 17 protrude to turn off the first switch 8 and the second switch 9 as shown in FIG.

Now, when using this razor, press the main switch operation knob 27a to turn it on and tilt the head section 2 forward.As shown in FIG. The receiving part 16 is pressed and pushed into the hole 23, and the operating rod 10 is inserted into the collar 17 of the rear head receiving part 17.
a is brought into contact with the inner surface of the upper wall rear part 22 of the main body case 1, assumes a forward leaning position under the guidance of the support shaft 15, and presses the first switch 8 with the switch pressing part 18. Then, as shown in FIG. 10a, the motor 5 and the first battery 6
are connected and the motor 5 is driven. Next, the capacity of the first battery 6 decreases as it is used, but if you continue to use it without noticing this decrease in capacity,
Even if the main switch 27 is turned on with the head section 2 tilted forward and the first switch 8 turned on, the motor 5 will not be driven and will become unusable. Therefore, the second battery 7 will be used at this time, but
At this time, the head portion 2 is tilted backward. Then, as shown in FIG. 5, the lower rear part 26 of the head part 2 presses the rear head receiving part 17, and the operating rod 1
0, the collar 16a of the front head receiving part 16 is brought into contact with the inner surface of the upper wall front part 21 of the main body case 1, and the switch is tilted backward under the guidance of the support shaft 15, and the second switch 9 is pressed by the switch pressing part 19. is pressed, the drive circuit of the motor 5 is switched to the second battery 7 side as shown in FIG. 10b, and the motor 5 is driven by the second battery 7 by turning on the switch operation knob 27a.

When the razor head 2 is returned to the neutral position from the forward or backward tilted state, the entire operating rod 10 is pushed up to its original position by the spring 20, and the front and rear head receivers 1 are pushed up.
6 and 17 protrude from the front and rear parts 21 and 22, and
Turn off the second switches 8 and 9. For this reason, the main switch 27 is not necessarily required.

As shown in FIG. 2, in order to prevent the second switch 9 from being accidentally operated during normal operation, a slide lock 28 is detachably provided at the bottom of the head section 2 on the rear side of the main body case 1. It is preferable to leave it there. By doing this, the slide lock tool 28
If the head part 2 is engaged with the head part 2, the head part 2 cannot be tilted backward, and the head part 2 cannot be tilted backward until the slide lock 28 is removed, and the second switch 9 can be pressed. This is because it is possible to prevent the second switch 9 from being turned on accidentally.

In contrast to the above embodiment, the second switch 8 may be turned on when the razor head 2 is tilted forward, and the first switch 9 may be turned on when the razor head 2 is tilted backward. Further, the motor 5 may be replaced with an electromagnet.

FIG. 6 shows another embodiment of the present invention, in which a first switch 8 and a second switch 9 are arranged close to each other on the inner surfaces of the front part 21 and rear part 22 of the upper wall of the main body case 1, respectively. Actuators 8 and 9 are made to protrude from the front part 21 and the rear part 22 of the upper wall so as to be freely retractable. In this case, when the head section 2 is tilted forward, the front section 25 of the lower surface directly presses the actuator 8a of the first switch 8 to turn it on, and when the head section 2 is tilted backward, the rear section 26 of the lower surface Then, the actuator 9a of the second switch 9 is directly pressed to turn it on.

FIGS. 7 and 8 show other embodiments of the present invention, which are directed to a rotary electric shaver, including a mesh outer cutter 3 and a rotary inner cutter (not shown).
The head part 2 having a head part 2 is made to be tiltable in the front-rear direction on the bifurcated upper part of the main body case 1. Then, a first switch 8 and a second switch 9 are arranged in the front and back on the bifurcated upper part of the main body case 1,
On the other hand, a switch switch 29 is provided protruding from the side surface of the head section 2. In such a case, when the head section 2 is tilted forward as shown in FIG. 7, the switch switch 29 turns on the first switch 8, and when the head section 2 is tilted backward as shown in FIG. 8, the switch opens and closes. When the child 29 turns on the second switch 9 and returns the head section 2 to the neutral position, the first switch 8 and the second switch 9 turn on.
Both are turned off. In this case, the front and rear surfaces 2a and 2b of the razor head 2 are color-coded, for example, the front and rear surfaces 2a and 2b are divided into red and blue, and when the razor head 2 is tilted forward, the blue rear surface 2b is directed upward. , same head 2
When tilted backward, the red front surface 2a will face upward. According to this, in addition to being able to use the first switch 8 and the second switch 9 depending on the direction of inclination, they can also be used depending on the color, so you can see at a glance whether the first or second battery is being used to drive the switch. You can judge by.

As explained above, according to the present invention, in addition to the first battery 6 that supplies electricity to the load 5 such as a motor, the electric shaver has the second battery 7 as a backup power source. A first switch 8 that opens and closes the energizing circuit of the second battery 7 and a second switch 9 that opens and closes the energizing circuit of the load 5 of the second battery 7 are turned on in conjunction with the tilting movement of the razor head 2 in the front and back direction. As a result, the head section 2 can be used as the switching operation knob for the first and second switches 8 and 9, and the operation of turning on and off the first switch and the second switch using dedicated switching operation knobs can be omitted, making it easy to use. is good. Furthermore, since the first switch 8 and the second switch 9 can be used selectively by the forward and backward tilting movements of the head section 2, it is possible to prevent misidentification and confusion during operation, and the usability is good in this respect as well.

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating an electric shaver according to the present invention, and FIG. 2 is a partial sectional view of the electric shaver seen from the side.
FIGS. 3 to 5 are explanatory diagrams of the operation. FIG. 6 is a partially sectional view showing another embodiment of the electric shaver according to the present invention. 7 and 8 are side views showing still another embodiment of the electric shaver according to the present invention. FIG. 9 is an electric circuit diagram, and FIGS. 10a and 10b are explanatory diagrams showing operating conditions. DESCRIPTION OF SYMBOLS 1... Main body case, 2... Head portion, 3... Outer blade, 4... Inner blade, 5... Motor, 6... First battery, 7... Second battery, 8... First switch, 9...
...Second switch.

Claims (1)

[Claims] 1. In an electric shaver in which a head part 2 having inner and outer cutters 4, 3 is provided on the upper part of a main body case 1 so as to be tiltable back and forth, a load 5 such as a motor which is a drive source for the inner cutter 4 is installed in the main body case 1. , each with a load of 5
A first switch 8 and a second switch each have a built-in first battery 6 and a second battery 7 that serve as a power source, and can independently open and close the energizing circuit of the first battery 6 and second battery 7 to the load 5. 9, one of the first switch 8 and the second switch 9 is connected to the head part 2.
It is turned on in conjunction with the forward tilting movement of , and the first switch 8
and means for turning on the other of the second switches 9 in conjunction with the backward tilting movement of the head section 2.