JPS59137086A - Electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to an electric shaver equipped with a function to convert the drive speed of the inner cutter, and the present invention relates to the drive control of the inner cutter and the sharpening cutter, and the drive speed of the inner cutter. The arrangement and configuration of each knob that performs the conversion (1).

(Note 1) The cutting speed of conventional electric razors depends on the driving speed of the inner blade, and the optimum driving speed also differs depending on the density of the razor.

〈Table 1〉 The iMI table shows the difference in how the electric shaver feels between people with thick beards and people with light beards.For example, people with thick beards have a slower driving speed of the inner blade [L1 is shorter, In contrast to people who claim to be able to shave, pale people have faster drive speeds (Hl
They claim that they can give you a short shave, but each individual has a different feeling about it.

However, with conventional electric razors, it is possible to create a stinging effect by attaching a razor blade to remove sideburns depending on the area to be shaved, or by attaching a comb blade to attract beards, etc. from the surrounding layer of the outer blade. Ideas to improve! However, since these methods were passive and indirect, they did not provide a shave that was tailored to each individual's taste.

(c) Purpose of the Invention The present invention has been made in view of the above-mentioned problems of the prior art. Moreover, its variable operation makes the knob easy to use!The purpose is to provide a good arrangement.

2) Structure of the Invention An outer cutter L is arranged on the upper part of the main body case made of synthetic resin, and a sharply shaving cutter Z is arranged near the outer cutter, and the inner surface of the outer cutter is rubbed.
Equipped with a large-area sharpener that starts the inner blade and a small-area sharpener blade drive knob that sets the razor blade to the operating position. 1. The two blades are arranged in parallel and close to each other, and their sliding directions are the same. (2) A switching operation knob for switching the drive speed of the inner blade is provided below the side knob to automatically slide. It is.

(E) Embodiment Hereinafter, an embodiment of a reciprocating electric shaver with razor blades according to the present invention will be described.

The main body case (1) made of synthetic resin has an outer cutter (2) made of a thin metal plate with a large number of hair introduction holes perforated on its surface. When installed, the outer cutter frame (3) is engaged with the device.A sharpening blade (4) is mounted on the front surface of the main body case (+) so as to be able to be turned half way out.

(5) is arranged inside the outer cutter frame (3) and the outer cutter (2
) is a large-area starting slide knob that starts an inner cutter (not shown) that can slide on the inner surface of the A sliding blade drive knob (6) is provided, and both slide knobs (51
(61Y can be slid in the same direction.

Further, on the front surface of the main body case (1), there is a switching switch (SW) for changing the driving speed (frequency) of the inner cutter.
2) is provided, and this knob (7) can take three positions: high speed (old), medium speed (threshold), and low speed (LL).

A vertically elongated hole (8), a horizontally elongated hole (9), and a circular hole (10) are provided on the front surface of the main body case (1) as shown in FIG. 1, respectively.

The operation knob (7) is provided in the vertically elongated hole (8) i2 so as to protrude from the inner surface of the main body case (1), and the knob (7) has a wider movement than the vertically elongated hole (8). It is integrally formed on the guide plate old 1, and a notch 1z is formed in the approximate center of the knob (7), which is large enough to fit the tip of a screwdriver. In addition, a circular hole (l) (- is a charging indicator lamp + 131 power is also attached.

The back side of the sliding guide plate (=) has a contact piece 114+ welded to it.
(See Figure 6 +c+, tal).

fl, 61 is a display body extending perpendicularly from the sliding guide plate QIJ. The display body (16) has a pair of articulated elastic legs ++71081 on the upper side, and a protrusion on the other side (forming two sliding guide holes (one wing), and a front surface of the display body (16) (: ) and a stepped pattern! Display panel C201 is attached.On the other hand, the back side of the main body case (1) (2) is a figure-8-shaped articulating dowel (21) and a sliding guide boss (22).
1 are provided as two pairs of windows for the leg portions f17) fl8) and the guide hole 00 (two pairs of windows), and the horizontally elongated hole (9) (- indicates the convex lens 12 made of transparent resin is housed, and the above-mentioned display The display panel (20) of the body (16) can be recognized from the outside through this convex lens (23).

Further, on the back side of the main body case (1) there is a protrusion (2!
is formed, and the elastic leg portion 0 of the sharpening blade drive knob (6)
e is locked between the protrusions 124) 251.

(27) is a lock button for the starting switch knob (5), which is appropriately engaged and disengaged from the back surface of the main body case (1).
5) Control the movement.

(281 is the storage part for the bottle plug 1291t31,
The bottle plug 129) 131 receives current supplied from a household outlet and supplies the current to the rechargeable battery C'111C inside the main body case (1) or directly to the motor (M1).

Next, the circuit diagram in Fig. 3 (two will be explained). Inside the main body case (1) there is a drive motor (, ) Jl that drives the inner cutter and the edge cutter (4), and a rectifier diode (
D3), a Schottky diode (DI) (D2), and a rechargeable battery IBI as a power source.
Each is connected like at. That is, the rechargeable battery tBI
A rectifying diode (D3) and a Schottky diode (DI) (D2) are connected in series to the motors t1 and 11. Also Schottky diode (D 1 )
(D2) has its respective terminal connected to a changeover switch (8W2) operated by the operation knob (7), and the rectifier diode (D3) is connected to one end of the secondary side of the step-down transformer ('P). It is connected to the.

When the starting switch (SW'1) operated by the starting switch knob (5) is pushed up one step from the lowest OFF position, the starting switch (SVZ) is closed, and the motor (λ4) is rotationally driven to rotate the inner cutter. moves back and forth. At this time, when the selector switch (SVZ) is in the high speed (Hl) position, the switch (8W2) passes through the point (Pl) from the ■ side of the rechargeable battery fBl, passes through the point (P2), and then the motor (Ml Electric current is supplied to the “electric motor (darkness is high speed (7
000 rpm) (Fig. 6 (1)
(see l). When the changeover switch (SVZ) is in the medium speed [Ml position, the point (Pl) →
(P5), it enters the Schottky diode (D2), and the electric motor (front end) is rotated at Ili (575 rpm) by the voltage drop caused by the diode (D2) (see FIG. 6, lbl).

When the changeover switch (sw2) is in the low speed FL+ position, a voltage is applied to the charging current (from the ω side of El through the Schottky diode (DI) (D2) & the motor IM), and the diode (Dl) CD2) (Due to the voltage drop due to
Rotate it and turn it (Fig. 3 ta + shayu).

In this example, a Schottky diode is used as the diode.
I use a ton. Except for Schottky diodes 4
Threshold voltage (0,5V) as indicated by tel in the figure
When it exceeds , current suddenly begins to flow.

Therefore, the i3[1[hat] shown by (α) in Figure 5 is similar to the load characteristic curve of the corresponding motor.
In contrast, the voltage of a general diode increases as shown in (8) in Figure 4 (the rate of increase in current is slower than that of a Schottky diode, and (r) in Figure 5).
A load characteristic curve such as + is obtained. Here, the rated load [t
The effect of both on +! By comparison, (N2) in Figure 5
and (N2'), a difference in rotational speed occurs. In this way, using the Schottky diode Z has the advantage that a higher motor rotational speed can be obtained at the rated load compared to a general diode.

In addition, two Schottky diodes are connected in series to the motor tIV.
When connected to 41 (-, the threshold voltage is doubled, so the voltage applied to the motor IMli2 decreases slightly).

However, the load characteristic curve in this case, as shown by ≠1 in Figure 5 (almost the same as the slope of α1), is still lower than the rated load compared to the case where two general diodes are connected in series. The rotation speed at 1 tl is N5>N5'. In addition, (6) in Figure 5 shows the load characteristic curve when the motor is connected straight to the power supply.

(f)) Effects of the Invention As described above, the present invention has an outer cutter placed on the upper part of the main body case, a sharply serrated cutter near the outer cutter, and an inner cutter that slides on the inner surface of the outer cutter. It is equipped with a switch knob for starting and a switch knob for setting the cross blade to the use position (:: setting the cross blade to the use position), and both the switches 75'' are arranged in parallel and close to each other and their sliding directions are the same, C'-1. Below both switches (
: Since it is equipped with a slidable operation knob to change the driving speed of the inner cutter, the edge cutting blade can be driven in one step, improving usability and improving the ease of use. Even when the cutting blade is moving, the operation knob is located on the same surface as both slide knobs, making it easy to operate (- The drive speed of the inner blade or edge cutting blade can be switched, making it easy to handle beards that grow in various ways depending on the part of the body. Not only is it very effective, it has a great design effect because the switches are all in one place, and it is extremely practical.

[Brief explanation of the drawing]

The drawing shows a reciprocating electric shaver C1 according to an embodiment of the present invention.
Figure 1 is a front view, Figure 2 is an exploded perspective view of the main parts,
Figure 3 (a and l are circuit diagrams, lbl is the main circuit diagram when the changeover switch is in the H position, (C) is the main circuit diagram when the switch is in the M position 1: 1111 is the same L position 1: Main part circuit diagram at a certain time, Figure 4 is a diode current-voltage curve diagram, Figure 5 is '@3 figure (tel, (cl
, (d) (Load characteristic diagram for the second stage, Figure 6 (+5) is the first
Main part front view of the figure, fl)l is the back view of (al), (0) is the B-go sectional view of lbl, (d, l are f'1) l(J)
A-A' sectional view and FIG. 47 are exploded perspective views of the display body. (1)...Body case, (2)...Outer blade, (4)...
・Kiwazori blade, (5) ・Pick up the starting sweetener, (
6)...Kizori blade drive knob, (7)...Switching operation knob. (7)

Claims (1)

[Claims] (1) The upper part of the main body case (= where the outer blade is placed, the edge blade is placed near the outer blade, the starting switch knob that starts the inner blade that slides on the inner surface of the outer blade, and the position where the edge blade is used) and Z-equipped with a sharp blade drive knob and a Z device, and the two knobs are arranged in parallel and have the same sliding direction (2. The drive speed of the inner blade is switched below the both grips. An electric razor characterized by a switching operation and sliding mechanism (two-pronged razor).