JPH0118151Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an electric hair clipper, and its main purpose is to be able to obtain an appearance and power suitable for the cutting method, and to prevent erroneous operation of the power save function.

[Background technology and purpose]

BACKGROUND ART Conventionally, electric clippers have been used for cutting such as round cutting and close-cutting, as well as plowing and edge cutting. However, even though the number of hairs to be cut is extremely small in the case of plow cutting and edge cutting compared to circular cutting, etc., the motor is driven to rotate with the same power as for cutting such as circular cutting and close cutting. There was a waste of power consumption, and even when plowing or edge mowing, which requires finishing precision, the vibration caused by the excessive power required caused camera shake, making it difficult to use.

Therefore, the first object of the present invention is to save the power of the motor during plowing or edge cutting other than cutting such as round cutting, thereby reducing power consumption, and to reduce camera shake.

Conventionally, electric hair clippers have a head on the cutting edge side of the main body case and a grip part that are completely integrated in a straight line, and the fixed blade is installed at a fixed angle with respect to the front part of the main case. . When mowing, the main case is turned upside down, but it is ideal and convenient to always place the cutting edge at right angles to the tangent to the cutting head. . However, as mentioned above, the head on the blade edge side of the main body case and the grip part are completely integrated in a straight line, so when cutting from the top of the head to the nape of the neck, for example, the blade edge will move as described above. The angle of the main body case relative to the head must be successively changed so that it is always at right angles to the tangent to the head. It was especially difficult to trim the area near the top of the head because you had to hold it with your wrist extremely bent above your head and the entire body case standing up extremely. This difficulty in cutting can be said to be the same when cutting around the ears or bangs.

Therefore, in the present invention, the main case is divided into two parts, a grip case and a head case, and the head case is equipped with a fixed blade and a movable blade, and the head case can be freely swung relative to the grip case. The angle of the blade tip with the grip case can be variably adjusted, so when mowing near the top of the head, the grip case does not need to stand up too much, and can be laid down slightly for easy gripping. The second purpose is to make it easier.

The present invention is further developed by devising a combination of the above-mentioned power saving means and swinging means. The overall appearance of the clipper when cutting, such as round shaving, i.e., the appearance when the head case is in a straight line with the grip case, is assumed to be driven by the motor at normal power. In order to make it easier to mow, the external appearance when the head case is tilted in a dogleg shape with respect to the grip case is such that the motor is driven by low power, and the external appearance is suitable for the method of mowing. The third purpose is to automatically obtain the appropriate power under the condition of the hair clipper, and to enable the user to confirm the proper usage condition by checking the change in the overall external appearance of the hair clipper. In other words, when performing cuts such as round shaving or shaving, it is convenient to use the body case so that the external appearance of the head case, which has a movable blade and a fixed blade, is approximately in a straight line with the grip case. Since the amount of cut is large, the power will be set to normal. On the other hand, when performing finishing mowing such as plowing and edge cutting, it is convenient to use the main body case with the head case slanted to the grip case as described above. It is preferable to set the power to low in order to reduce vibrations and camera shake as much as possible. For this reason, the power is switched to normal power in the basic position where the head case is in a straight line with respect to the grip case, and the power is switched to low power when the head case is in an inclined position with respect to the grip case. It is. If you mistakenly place the head case in the basic position and use it at low power, hair will get caught in it, giving you a scratchy feeling.On the other hand, if you put the head case in a tilted position and use it at normal power, you will experience camera shake. This causes problems such as not being able to accurately align and cut. In order to prevent such incorrect usage, whether the power is switched to normal power when the head case is in the basic position and to low power when the head case is in the tilted position before use. It is necessary to check the position of the slide, but one possible way to check this is, for example, by providing a power type display means on a power changeover switch that operates in a sliding manner and then checking the slide position. It may be difficult to confirm due to However, it is not reliable to intuitively know whether it is normal power or low power based on vibrations transmitted to the hand or changes in the sound of changes in rotation speed. Therefore, the present invention makes it possible to reliably and easily confirm the type of power by changing the external form of the main body case without looking at the display means or relying on the sensation of vibrations and sounds transmitted to the hand. .

[Summary of the idea]

In order to achieve the above object, the present invention has a grip part case and a pivot support that can freely swing around a support shaft between a basic position in which the grip part is in a straight line with respect to the grip part case and a posture in which it is inclined in a dogleg shape. A connected head case, a fixed blade provided on the head case, a movable blade in sliding contact with the fixed blade, and a motor that drives the movable blade;
Equipped with a power changeover switch that can change the power of the motor between normal power and low power, and the power changeover switch is linked to the swing of the head case so that the power is changed to normal power when the head case is in the basic position, and when the head case is in the tilted position. The feature is that each can be switched to low power.

〔Example〕

The drawing shows an electric hair clipper according to the present invention, in which the main body case 1 is composed of a long box-shaped grip case 1a that is long in the front and back direction, and a head case 1b that is equipped with a fixed blade 2 and a movable blade 3. , the grip case 1a and the head case 1b are in a basic position where the head case 1b is in a substantially straight line in front of the grip case 1a (see Figure 1), and an upward position (see Figure 3).
are pivotally connected to be rotatable around a support shaft 4.

In FIG. 2, a motor 5, a battery 6, etc., which are the power source of the movable blade drive mechanism, are built into the grip case 1a. A blade unit 7 having a fixed blade 2 and a movable blade 3 is removably assembled on the lower surface side of the head case 1b. The blade unit 7 includes a comb-shaped fixed blade 2 inside a unit base 8 having a U-shaped cross section.
A movable blade 3, also in the shape of a comb, is pressed against the upper surface of the fixed blade 2 by a spring 10 attached to the unit base 8 via a spring shaft 9. A vibrator 11 is installed inside the head case 1b, and a vibration lever 12 integrally formed at the front end of the vibrator 11 is fixed to the upper surface of the movable blade 3 by protruding forward.
3 so that the movable blade 3 slides back and forth on the upper surface of the fixed blade 2 in the left-right direction through the rotation of the motor 5 via the vibrator 11.

There is a switch operation knob 1 on the side of the main case 1.
6 is slidably mounted, and in conjunction with the sliding operation of the knob 16, a power switch 17 interposed in the energizing circuit of the motor 5 is turned on and off.

A power changeover switch 18 with one circuit and two contacts is built into the main body case 1, and the head case 1
The contact point of the power changeover switch 18 is switched in conjunction with the swinging motion of b. Furthermore, the movable electrode 19 of the power changeover switch 18 and the power switch 17
At the same time as connecting the power selector switch 18
The first contact 20 of is directly connected to the motor 5, and the second contact 2
1 is connected to the motor 5 via a diode 22.

The power changeover switch 18 is installed inside the main body case 1, and when the head case 1b is tilted upward, the power changeover switch 18 enters the second contact 21 side, so when the power switch 17 is turned on, the battery is 6 is connected to both ends of the motor 5 via a diode 22. Therefore, a voltage lower than the output voltage of the battery 6 by the voltage drop caused by the diode 22 is applied to the motor 5, and the motor 5 rotates at a slower rotation speed than usual. When the head case 1b is in the basic position in a straight line, the power selector switch 18 is on the first contact 20 side, so when the power switch 17 is closed, the motor 5 is directly connected to the battery 6, and the load on the cut is It rotates with normal power at the normal rotation speed that matches.

In such a case, normal power is obtained when the head case 1b is in the basic position in a substantially straight line with respect to the grip case 1a, and at this time, cutting such as round cutting or close-cutting is performed. When mowing or mowing, the main case 1 is turned upside down and the head case 1b is turned to an inclined position. This inclined position switches to low power and reduces vibration, and the fixed blade The angle α with respect to the grip part case 1a of 2 is the head case 1b.
Since the grip part case 1a is smaller than when it is in the basic position of a straight line, the grip part case 1a can be easily and accurately trimmed in a slightly lying position that is easy to hold without having to stand up against the top of the head.

[Another example]

The entire details of the illustrated embodiment are as described above.
The present invention is not limited to this. For example, motor 5
Directly driving with an AC power source can be done by switching between full-wave rectification and half-wave rectification.

[Effect of idea]

As explained above, according to this invention, by swinging the head case 1b into a dogleg-shaped inclined position with respect to the grip part case 1a, plowing and edge cutting can be easily performed. The head case 1b is also equipped with a power changeover switch 18 that can change the power of the motor 5 between normal power and low power.
The power input to the motor 5 in conjunction with the swinging motion of the motor 5 is automatically switched to a level corresponding to the load of the mowing method, so especially in battery-powered models, the usable life of the battery is shortened. It can be extended, and the switching operation of the power changeover switch 18 can be performed in conjunction with the swinging of the head case 1b, making it extremely convenient to use. Moreover, by lowering the rotational speed of the motor 5 during plowing and edge cutting, the fear of over-cutting is alleviated, and the sound volume is reduced when cutting around the ears, resulting in less harshness and more comfortable use. Furthermore, in the case of plow mowing or edge mowing, the blade tip must be accurately placed at the cutting position, but by swinging the blade to the above-mentioned tilted position and saving power, unnecessary camera shake is reduced and accurate cutting is achieved. be able to. In particular, the change in the external appearance of the main body case 1 makes it simple and easy to use the device with proper power, prevents incorrect usage, and is extremely easy to use.

[Brief explanation of the drawing]

Fig. 1 is an external side view showing an embodiment of the electric clipper according to the present invention, Fig. 2 is a sectional view, Fig. 3 is a side view with the head case tilted, and Fig. 4 is an electric circuit diagram. It is. 1...Body case, 1a...Grip case, 1
b... Head case, 2... Fixed blade, 3... Movable blade, 5... Motor, 18... Power changeover switch.

Claims (1)

[Scope of utility model registration request] A grip part case 1a, a head case 1b which is pivotally connected to the grip part case 1a so as to be swingable around a support shaft 4 between a basic position in which the grip part case 1a is substantially in line with the grip part case 1a and a posture inclined in a dogleg shape. , head case 1b
A fixed blade 2 equipped with a fixed blade 2, a movable blade 3 in sliding contact with the fixed blade 2, a motor 5 that drives the movable blade 3, and a power changeover switch 18 that can switch the power of the motor 5 between normal power and low power. The changeover switch 18 is the head case 1b.
The electric hair clipper is characterized in that the power can be switched to normal power when the head case 1b is in the basic position, and to low power when the head case 1b is in the inclined position, in conjunction with the swing of the head case 1b.