JPS59230585A - Electric hair clippers - 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 An object of the present invention is to reduce the power consumption of an electric hair clipper.

Conventionally, electric hair clippers can be used for other purposes besides round cutting.

Plow mowing and edge mowing are now being carried out.

However, even though the number of hairs cut during plowing and edge shaving is extremely small compared to round shaving, the motor is still driven with the same power as when shaving, resulting in wasted power consumption. .

Taking note of this fact, the present invention attempts to reduce power consumption by reducing the power of the motor during plow mowing and edge mowing other than round mowing.

The details will be explained below based on the drawings.

1 to 5 illustrate an electric clipper according to the present invention, in which a clipper-type reaping device 2. A vibrator that drives this 3. It is equipped with a motor 4 and a battery 5, as well as a bristle introduction M adjustment tool 6 for plow cutting.

The reaping device 2 has a fixed blade 9 fixed to a fixed blade support 8 which is removably pivoted to the main body case 1 via a support shaft 7, and a movable blade 11 fixed to a movable blade support 10. A helical spring 13 attached to the blade 8 via a support shaft 12 presses and biases the upper surface of the fixed blade 9 so as to be able to freely slide into contact with the upper surface of the fixed blade 9.

The arm 15 at the tip of the vibrator 3 is engaged with a protrusion 14 protruding from the upper surface of the movable blade support 10, so that the movable blade 11 vibrates in the left-right direction using the rotation of the motor 4 via the vibrator 3. .

The hair introduction amount adjusting tool 6 for plow cutting has comb teeth 19 with shallow grooves 17 and deep grooves 18 arranged alternately at the tip of its handle 16, and an operation knob 20 at the rear end. and an operation port 2 in which the operation knob 20 is opened in the upper wall 1a of the main body case 1.
The comb teeth 19 move between the movable blade 11 and the upper wall 1a by sliding the comb in three steps in the forward and backward force direction, that is, a small gap position A, a large gap position B, and a circular cutting position C. It moves forward and backward in the same way in the front and rear directions in the gap between the front ends. As shown in FIG. 4(I), when the comb teeth 19 are advanced the most and stopped at the position with the least gap, the shallow grooves 17 are located in front of the cutting edge of the fixed blade 9, and the teeth of the deep grooves 18 are located in front of the fixed blade 9. 9 and the deep groove 18 with a ramp.
Only the hair that is introduced into the groove is ploughed, and when the < 4Mt teeth 19 are fixed at the middle position iB in the longitudinal direction, both the shallow grooves 17 and the deep grooves 18 are cut by the fixed blade. The hair introduced into both grooves 17 and 8 is cut by wrapping with the cutting edge of 9. As shown in FIG. 1 (1), when the comb teeth 19 are set back the most, the shallow grooves 17 and the deep grooves 1
8 are retracted backward from the cutting edge of the fixed blade 9 to become ready for round cutting.

A switch operating knob 23 is slidably mounted on the side surface of the main body case 1, and in conjunction with the sliding operation of the knob 23, a power switch 24 interposed in the power circuit of the motor 4 is operated.
Open and close.

As shown in FIG. 5, a power save switch 22 built into the main body case 1 switches its contact point in conjunction with the operation knob 20 of the hair introduction amount gJlilu tool 6.

That is, the electrode 28 of the power save switch 22 and the power switch 24 are connected, the first contact 25 of the power save switch 22 is directly connected to the motor 4, and the second contact 26 is connected via the diode 29 in the forward direction. The third contacts 27 are connected to the motor 4 via a diode 30 and a diode 29, respectively.

In such a case, when the operation knob 20 of the hair introduction amount adjuster 6 for plow cutting is stopped at the round cutting position, the power save switch 22 is placed on the first contact 25 side.

When the power switch 24 is closed, the motor 4 is ffi/lt.
! The movable blade 11 is directly connected to the movable blade 11 by rotating at a high power state at a normal rotational speed to enable round cutting. When the operating knob 20 is switched to the plow position when mowing, the power save switch 22 is automatically switched to the second contact 26 side, and the battery 5 is connected to the motor 4 via the diode 29.

Therefore, a voltage lower than the output voltage of the battery 5 by the voltage drop caused by the diode 29 is applied to the motor 4, and the motor 4 rotates at a rotation speed of 5 which is lower than the normal rotation speed (approximately 550 Or pm).
For example, the movable blade 11 is driven by rotating at about 450 Or p m. Furthermore, if you switch to a position with less clearance, battery 5
Diodes 30 and 29 are interposed in series between the two diodes 30 and 29, and a voltage lower by the voltage drop caused by the two diodes 30 and 29 is applied to the motor 4, and the motor 4 rotates at a rotation speed of 1, for example 3800 r, which is even lower than the normal rotation speed. pm to drive the movable blade 11. In other words, the rotation speed of the motor 4 is reduced in proportion to the amount of hair introduced into the fixed blade 9.

In the above embodiment, the rotational speed of the motor 4 can be switched in three stages, but it may also be switchable in two stages or three or more stages. Also, hair introduction amount adjustment tool 6 for plow cutting
It is possible to change the amount of plowing into two stages: high and low, but it is also possible to switch to a higher stage, or to make it so that only a certain amount of plowing can be done at all times. It is optional, for example, to be able to switch the adjuster 6 between only two positions, the plow cutting position and the round cutting position.

If the power save switch 22 is switched in conjunction with the switching operation of the operation knob 20, the usability is improved, but the present invention is not limited to this, and the former switching operation and the latter switching operation may be performed separately. .

The hair introduction amount adjusting tool 6 may be used not only for plowing but also for edge cutting as shown in FIG. 6, for example.

Its structure is such that the tip of the handle 16 has a shape similar to that used for plow cutting.
``The only difference is that a covering part 24 covering a part of the cutting edge of the movable blade 11 is formed instead of a comb tooth, and in other respects it is exactly the same as the one for plow cutting. In addition, in the illustrated example, the hair introduction amount adjusting tool 6 for edge cutting is one that covers the center portion of the cutting edge of the movable blade 11 in the left and right direction, but it is a tool that is only used for cutting the left or right edges. It may be.

FIG. 7 shows yet another embodiment of the invention.

A hair introduction amount adjustment tool 6 for edge cutting is provided so as to be movable in the left-right direction of the cutting edge of the movable blade 11, so that the edge cutting width t can be continuously changed, and the tool is capable of continuously changing the cutting width t. The power of the motor 4 can be adjusted steplessly.

The hair introduction amount adjusting tool 6 may be detachably attached to the main body case 1 instead of being permanently attached to the main body case 1 and being operable to switch between the use position and the non-use position.

As explained above, the electric hair clipper of the present invention is equipped with a power save switch 22 that controls the power of the motor 4 stepwise or steplessly in accordance with the amount of hair introduced to adjust the amount of hair introduced. Since the amount of power can be consumed in accordance with the amount of hair cut depending on whether or not the tool 6 is used, the usable time of the battery can be extended, especially in the case of a battery-powered device. In addition, by lowering the rotation speed of the motor 4 during plowing and edge cutting, the fear of over-cutting is alleviated, and the sound of changing rotation speeds allows you to intuitively grasp the amount of hair to be removed. By reducing the sound volume when mowing, there are advantages such as less harshness and more comfortable usage. Furthermore,
When plowing or edge mowing, the blade tip must be placed precisely at the cutting position, but by saving power, you can reduce unnecessary camera shake and cut accurately.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an embodiment of an electric hair clipper according to the present invention, and FIG. 2 is a plan view showing the inside. FIG. 3 is a partially cutaway side view, FIG. 4 is a plan view of the blade edge showing the state of circular cutting and plow cutting, and FIG. 5 is an electric circuit diagram. FIG. 6 is an internal plan view showing another embodiment of the present invention. FIG. 7 is a partial plan view showing a further different embodiment of the present invention. ■・・・Body case. 4...Motor. 6... Hair introduction amount adjustment tool. 9...Fixed blade. 11...Movable blade. 22...Power save switch.

Claims (1)

[Claims] (]) Fixed blade 9 and movable blade 11 that makes sliding contact with the fixed blade 9
and an adjustment tool 6 for adjusting the amount of hair introduced into the fixed blade 9.
A motor 4 that drives the movable force 11, and a power save switch 2 that controls the power of the motor 4 in correspondence with the amount of hair introduced.
An electric hair clipper that is equipped with 2.