JPS6323691A - Electric hair clippers - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an electric hair clipper, and its main purpose is to reduce power consumption.

[Conventional Example] Conventionally, electric hair clippers have been designed to perform not only circular cutting but also plow cutting. However, even though the number of hairs cut in plow cutting is extremely small compared to round cutting, the motor is driven with the same power (rotation speed) as in round cutting, so there is a corresponding waste of power consumption. Ta.

Also, when doing finishing mowing such as plowing,
In order to improve the accuracy of the machine, it is preferable to reduce the vibration of the main body so that work can be carried out with as little shaking as possible due to vibration transmitted to the hand.

[Purpose of the invention]

Focusing on this fact, this invention reduces power consumption by reducing the power of the motor when mowing the plow other than round mowing, reduces camera shake and cuts accurately, and also switches the power of the motor. The purpose is to provide an electric hair clipper that can prevent erroneous operation.

(Example) The details will be explained below based on the drawings.

FIGS. 1 to 5 illustrate an electric clipper according to the present invention, and inside the main body case 1 of this, from the front, a clipper type reaping device 2, a vibrator 3 for driving the same, a motor 4, and a battery 5 are shown. will be equipped.

The vibrator 3 is entirely made of plastic molded product, and includes a thick base frame 3b that is guided and mounted on the bottom wall 1b of the main body case 1 so as to be movable in the front and back direction, and a front frame that has an interlocking arm 6 projecting forward. The crank bin 8 is integrally connected to the frame 3a by thin left and right frames 3c and 3d, and is engaged with a downwardly long groove 7 formed on the rear surface of the front frame 3a, and is rotated by a motor 4. As a result, the front frame 3a is configured to reciprocate from side to side through the oscillating elastic deformation of the left and right frames 3c and 3d. In addition, a bottle 9 is provided protruding from the base frame 3d of the vibrator 3, and the bottle 9 is engaged with a midway portion of a lever 11-H which is disposed between the vibrator 3 and the motor 4 and is capable of swinging back and forth around the support 10. At the same time, the pin 12 at the tip of the lever 11 is loosely engaged with the pin receiver 32 of the blade switching operation knob 13 attached to the main body case 1'', and the blade switching operation knob 13 is moved forward and backward. By sliding the vibrator 3, the entire vibrator 3 can be slid between a circular mowing position and a plowing position in the front-rear direction perpendicular to the vibrating direction. In this case, the length of the crank bin 8 is set to be large even when the blade switching operation knob 13 is moved to the circular cutting position and the vibrator 3 is moved to the most forward position.

The reaping device 2 consists of a fixed blade 16 fixed to the inner front end of the main body case 1 and a movable blade 18 that can freely slide into contact with the upper surface of the fixed blade 16.
1 is engaged with the interlocking arm 6 at the tip of the vibrator 3, so that the movable blade 8 vibrates in the left-right direction via the vibrator 3 due to the rotation of the motor 4.

As shown in the fourth section, the fixed blade 16 has a shallow grooved cutting edge 16a and a deep grooved cutting edge 161) arranged in alternating rows, and the movable blade 18 is moved by sliding the blade switching operation knob 13 to the circular cutting position. Circular cutting is performed by sliding the blade edge of the fixed blade 1 fi in the left-right direction between the tip A of the blade edge of the fixed blade 1 fi and the blade depth B of the shallow groove, and by moving the blade switching operation knob 13 to the plowing position, the movable blade 18 Plow mowing can be performed by sliding the blade edge of the fixed blade 16 in the left-right direction within the range of the blade depth B of the shallow groove and the blade depth C of the deep groove.

In conjunction with the sliding operation of the blade switching operation knob 13, a power switch 22 interposed in the energizing circuit of the motor 4 can be turned on and off. In other words, the blade switching operation knob I3
The power switch 22 is turned off at an intermediate position between the front and back, and the power switch 22 is turned on when moved from the off position to a circular cutting position in front and a plowing position in the rear.

As shown in FIG. 5, the power selector switch 23 built into the main body case 1 is a one-circuit, two-contact switch, and has a low power position and a high power position H in the left and right direction on the earthen wall of the main body case 1. The switching position can be changed by sliding the power switching operation knob 24, which is attached so as to be slidable over the entire length. That is, the movable electrode 25 of the power changeover switch 23 and the power switch 22 are connected, the first contact 26 of the power changeover switch 23 is directly connected to the motor 4, and the second contact 27 is connected to the motor 4 via the diode 28. I'm here.

A power switching regulating means 29 is provided between the blade switching operation knob 13 and the power switching operation knob 24. That is, the regulation protrusion 30 is provided on the blade switching operation knob 13, and the regulation receiving part 31 is provided on the power switching operation knob 24, so that when the blade switching operation knob 13 is in the circular cutting position, the regulation protrusion 30 becomes the regulation receiving part. 31, the power switching operation knob 24 cannot be switched to the low power position, and the regulation protrusion 30 does not move to the regulation receiving part 31 until the blade switching operation knob 13 is switched to the plowing position and moved. The setting is such that the power switching operation knob 24 can be switched and moved to the low power position I when the power switch is removed from the power switch.

In such a case, move the blade switching operation knob 13 from the off position to the circular cutting position and stop it. Since the power selection switch 23 is in the first contact 26, the power switch 2
2 is closed, the motor 4 is directly connected to the battery 5, and the output voltage of the battery 5 is directly applied, and the motor 4 rotates at the normal rotation speed and high power to drive the movable blade 18 and enable round cutting. . At this time, power switching regulating means 2
Since the regulating protrusion 30 and the regulating receiving part 31 of 9 restrict the movement of the power switching operating knob 24 to the low power position I7, the power switching operating knob 24 may be accidentally switched and moved to the low power position I4. There are no concerns.

When the blade switching operation knob 13 is switched to the plowing position, the power selector switch 23 is automatically switched to the second contact 27 side, the power switch 22 is closed, and the battery 5 is connected to the motor 4 via the diode 28. Ru. Therefore, a voltage lower than the output voltage of the battery 5 by the voltage drop caused by the diode 28 is applied to the motor 4, and the motor 4 rotates at a rotation speed lower than the normal rotation speed to drive the movable blade 18. The power consumption will be lower than in the case of round cutting.

Such power saving means can be implemented by changing the number of poles of the motor from 2 types to 4 types, or by controlling the applied voltage by changing the number of pulses of a switching regulator. This uses rotation speed control means.

[Other Examples]

FIGS. 6 and 7 show another embodiment of the present invention, in which the amount of plowing can be switched to two levels: large and small. That is, a shallow grooved cutting edge 16a, an intermediate-depth grooved cutting edge 16c, and a deep grooved cutting edge 16b are arranged alternately on the cutting edge of the fixed blade 16, and the cutting edge of the movable blade 18 is arranged on the fixed blade 1.
6. Slide the blade between the tip A of the blade tip A and the shallow groove Ooku B for circular cutting, and slide it between the shallow groove Ooku B and the medium depth groove C for more plow cutting. It is designed to allow less plow cutting by sliding between the deep depth C of the medium-depth groove and the deep depth C of the deep groove. Corresponding to this, the blade switching operation knob 13 is made to be able to be switched to three stages: a large gap position, a small gap position, and a circular cutting position, and the power selector switch 23 is equipped with a three-contact type.
By connecting the battery 5 to the motor 4 through the diode 29 in addition to the diode 28 when the gap is at the small clearance position, the motor 4 rotates at the normal rotational speed and high power at the round cutting position, and the blade switching operation is performed. When the knob 13 is switched to a higher position, the motor 4 rotates at a lower speed than normal.
For example, if the motor 4 rotates at 2 rotations, and then switches to a position with a small clearance, the motor 4 rotates at a speed that is even lower than the normal rotation speed, for example, 2 rotations. That is, the rotation speed of the motor 4 is reduced in proportion to the amount of hair introduced into the fixed blade 16.

Further, when the motor 4 is driven using a commercial power source, the power can be controlled by switching between full-wave rectification and half-wave rectification.

In addition, in the above embodiment, the movable blade 18 is used to adjust the amount of hair determination.
was moved forward and backward relative to the fixed blade 16, but the fixed blade 16
The amount of hair cut may be adjusted by moving the movable blade 18 forward and backward.

Further, as shown in FIG. 8, the blade switching operation knob 13 and the power switching operation knob 24 can be mounted on the outer surface of the main body case 1 in a straight line.

〔Effect of the invention〕

As explained above, according to the present invention, in the electric hair clipper in which the fixed blade 16 and the movable blade 18 can be relatively moved forward and backward to perform round cutting and plow cutting, the movable blade 18 or the fixed blade 16 can be moved back and forth. When mowing the plow while moving backwards, the power of the motor 4 is suppressed via the power changeover switch 23, which eliminates the conventional method of driving the mower with the same power for both round mowing and plow mowing. Compared to conventional batteries, battery-operated batteries can extend the usable life of the battery. Moreover, a power switching regulation means 29 is provided between the row switching operation knob 13 and the power switching operation knob 24, so that when the row switching operation knob 13 is in the round cutting position, the power switching operation knob 29 is
4 does not move to the low power position, and the row switching operation knob 13 is switched to the plowing position and then tightened, and the power switching operation knob 24 can be moved to the low power position via the power switching regulating means 29. This makes it easy to handle and prevents the mistake of switching to low power when cutting.

In addition, by lowering the rotation speed of the motor 4 during plowing, the vibration transmitted to the main body is reduced, preventing camera shake, preventing plowing mistakes, alleviating the fear of over-cutting, and reducing the number of rotations caused by changes in rotation speed. It has the advantage of being able to intuitively grasp the amount of hair to be trimmed by changing the sound.

[Brief explanation of drawings]

Fig. 1 is an external perspective view showing an embodiment of the electric hair clipper according to the present invention, Fig. 2 is a plan view showing the inside, Fig. 3 is an exploded perspective view, and Figs. 4 (1) and (II) are circular cutting. FIG. 5 is a plan view of the cutting edge showing the plow cutting state, and FIG. 5 is an electric circuit diagram. FIG. 6 is an internal plan view showing another embodiment of the electric hair clipper according to the present invention, and FIG. 7 is an electric circuit diagram. FIG. 8 is a perspective view showing still another embodiment of the electric hair clipper according to the present invention. 1... Main body case 4... Motor 13... Row switching operation knob 16... Fixed blade 18... Movable blade 23... Power switching switch 24... Power switching operating knob 29... Power switching regulation means. Applicant Kyushu Hitachi Maxell Co., Ltd. Representative Makoto Sato Figure 5 Figure 6 <C00 Written amendment to U-oral procedure (voluntary) July 21, 1988 Patent application filed on July IO date of July 1988 (3) /2, Name of the invention Electric hair clipper 3, Relationship with the person making the amendment Patent applicant address 4680-4 Ikata, Katajo-cho, Tagawa-gun, Fukuoka Prefecture Subject of amendment (1) "Scope of claims" in the specification Column (1) As shown in the attached sheet (no changes in content other than those stated in the subject of amendment) (2) Drawings 6, 7 (a), (b) and 8
First, correct the assets as shown in the attached sheet. 6. List of attached documents (1) Correction statement 1 copy (2
) At least one corrected drawing. Amended Description 1, Name of the Invention Electric Hair Clipper 2, Claims ``1 Electric Hair Clipper.'' 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to an electric hair clipper that reduces power consumption. [Conventional example] Traditionally, electric hair clippers have been designed to be able to perform not only circular cutting but also plow cutting. Or, it may be necessary to make further adjustments depending on the desired hair style, etc.In particular, people who are not used to using clippers may lack confidence in cutting a large amount of hair all of a sudden and may fail. As a means to adjust the amount of drop, Fig. 7 (a) and (b)
), the main introduction amount adjusting plate 5 is slidable in a direction orthogonal to the row of cutting edges and has several types of grooves 52a, 52b.
1 or a fixed blade 53 as shown in FIG.
By alternately arranging shallow grooves 54 and intermediate grooves 56 other than the deep grooves 55 on the blade edge, and moving the movable blade 57 relative to the fixed blade 53, the amount of hair introduced during plowing can be further increased. It is conceivable that the amount can be adjusted in multiple stages. However, in this case, even when the number of hairs to be cut is extremely small, the motor is driven with the same power (rotation speed) as in the case of round shaving, which wastes power accordingly. In addition, since the vibrations and driving noise are the same whether mowing in the round, plowing with a large amount of plowing, or plowing with a small amount of plowing, it is impossible to understand the usage status other than visually, such as by looking at the display. Haircuts in small areas where a small amount of plowing should be used can be easily done with the large amount of plowing function, resulting in failure due to over-cutting. Further L
When performing SI-cutting, it is preferable to reduce the vibration of the main body in order to increase the precision of the trimming, and to minimize the vibrations transmitted to the hands so that the work can be carried out. (Purpose of the Invention) Focusing on this fact, this invention reduces power consumption by adjusting the mowing position during plowing by changing the rotation speed of the motor, and also reduces camera shake when it is desired to reduce the amount of mowing. The device allows for accurate haircuts, and also reduces the noise of the motor so that it does not frighten young children when cutting their hair. Furthermore, it is an object of the present invention to provide an electric hair clipper that can prevent failures in haircutting operations by making it possible to sense the function of cutting with a small amount of plowing, not only visually but also through vibrations, driving sounds, etc. [Example] The details will be explained below based on the drawings. FIGS. 1 to 5 illustrate an electric hair clipper according to the present invention. Inside the main body case 1 of the electric hair clipper, from the front, a hair clipper-type reaping device 2, a vibrator 3 for driving the hair clipper, a motor 4, and a power supply section are installed. A battery 5 is equipped. The vibrator 3 is entirely made of plastic molded product, and includes a thick base frame 3b that is guided and mounted on the bottom wall 1b of the main body case 1 so as to be movable in the front and back direction, and a front frame that has an interlocking arm 6 projecting forward. The front frame 3a is integrally connected to the frame 3a by thin left and right frames 3c and 3d, and the front frame 3a is rotated by a motor 4 to rotate a crank bin 8 that is engaged with a vertically long groove 7 formed on the rear surface of the front frame 3a. 3a is configured to vibrate back and forth to the left and right through the oscillating elastic deformation of the left and right frames 3c and 3d. Further, a bottle 9 is provided protrudingly from the base frame 3d of the vibrator 3, and the bottle 9 is engaged with a midway portion on a lever 11 that is arranged between the vibrator 3 and the motor 4 and can swing back and forth around a shaft 10. At the same time, the bottle 12 at the tip of the lever 11 is loosely engaged with the bottle receiving part 32 of the blade switching operation knob 13 mounted on the main body case 1, and the row switching operation knob 13 is slid in the front and back direction. By doing so, the entire vibrator 3 can be slid between a circular mowing position and a plowing position in the front-back direction perpendicular to the vibrating direction. In this case, the length of the crank pin 8 is set to be large even when the row switching operation knob 13 is moved to the round cutting position and the vibrator 3 is moved to the most forward position. The reaping device 2 consists of a fixed blade 16 fixed to the front end of the main body case 1, and a movable blade 18 that can freely slide into contact with two surfaces of the fixed blade 16. 21 is engaged with the interlocking arm 6 at the tip of the vibrator 3, so that the movable blade 8 vibrates in the left-right direction via the vibrator 3 due to the rotation of the motor 4. As shown in FIGS. 4(1) and 4(II), the fixed blade 16 has shallowly grooved cutting edges 16a and deep grooved cutting edges +6b arranged in alternating rows, and the row switching operation knob 13 is slid to the circular cutting position. Can be moved When the cutting edge of the U1 blade 18 is slid in the left and right direction between the tip A of the cutting edge of the fixed blade 16 and the shallow groove B, round mowing is performed, and the row switching operation knob 13 is moved to the plowing position. Then, by sliding the cutting edge of the movable blade 18 in the left-right direction within the range of the shallow groove B and the deep groove C of the fixed blade 16, plowing can be performed. In conjunction with the sliding operation of the column switching operation knob 13, a power switch 22 interposed in the energizing circuit of the motor 4 can be turned on and off. In other words, the column switching operation knob 13
The power switch 22 is turned off at an intermediate position between the front and back, and the power switch 22 is turned on when moved from the off position to a circular cutting position in front and a plowing position in the rear. As shown in FIG. 5, the power selector switch 23 inserted into the main body case 1 is a switch with one circuit and two contacts, and has a low power position and a high power position in the left and right direction on the upper wall of the main body case 1. A power switching operation is provided that can be slid freely over the H, and the switching position can be changed by sliding the knob 24. That is, the movable electrode 25 of the power changeover switch 23 and the power switch 22
and connect the first power selector switch 23.
The contact 26 is directly connected to the motor 4, and the second contact 27 is connected to the motor 4 via a diode 28. A power switching regulating means 29 is provided between the row switching operation knob 13 and the power switching operation knob 24. That is, the row switching operation knob 13 is provided with the regulation protrusion 30, and the power switching operation knob 24 is provided with the regulation receiving part 31, so that when the row switching operation knob 13 is in the circular cutting position, the regulation protrusion 30 becomes the regulation receiving part. 31, and the power switching operation knob 24 cannot be switched to the low power position I.
It is set so that only when the row switching operation knob 13 is switched to the plowing position, the regulation protrusion 30 comes off from the regulation receiving part 31, and the power switching operation knob 24 can be switched to the low power position 7. . In such a case, move the row switching operation knob 13 forward from the off position to the circular cutting position and stop it. Since the power selection switch 23 is in the first contact 26, the power switch 2
2 is closed, the motor 4 is directly connected to the battery 5, and the output voltage of the battery 5 is directly applied, and the motor 4 rotates at the normal rotation speed and high power to drive the movable blade 18 and enable round cutting. . At this time, power switching regulating means 2
Since the regulating protrusion 30 and the regulating receiving part 31 of 9 restrict the movement of the power switching operating knob 24 to the low power position I-, it is possible to accidentally switch the power switching operating knob 24 to the low power position 7. There is no danger of it being moved. When the row switching operation knob 13 is switched to the plowing position, the restriction on the movement of the operation knob 24 is released, and the power changeover switch 23 can be switched to the second contact 27 side, and the operation knob 24 is now turned to the I position. If you move it to the side, with the power switch 22 closed,
Battery 5 is connected to motor 4 via diode 28. Therefore, a voltage lower than the output voltage of the battery 5 by the voltage drop caused by the diode 28 is applied to the motor 4, and the motor 4 rotates at a rotation speed lower than the normal rotation speed to drive the movable blade 18. The power consumption will be lower than in the case of round cutting. That is, when the blade switching operation knob 13 is switched to the plowing position, the switching operation of the power switching operation knob 24 can be switched between the high power position H and the low power position. This makes it possible to control the movable blade 18 by making it variable, so that the movable blade 18 can be driven at a low speed when mowing a very small amount of plowing, or when you are inexperienced and lack confidence in handling the movable blade. Such power saving means can be implemented by changing the number of poles of the motor from 2 types to 4 types, or by controlling the applied voltage by changing the number of pulses of a switching regulator. This uses rotation speed control means. Further, in this embodiment, the mowing function is performed by moving the movable force, but the mowing function can also be realized by using a means for regulating the amount of hair introduced, such as a separate mowing board. In addition, in the above embodiment, the movable blade 18 is used to adjust the amount of hair cut.
was moved forward and backward relative to the fixed blade 16, but the fixed blade 16
The amount of hair cut may be adjusted by moving the movable blade 18 forward and backward. Further, as shown in FIG. 6, the blade switching operation knob 13 and the power switching operation knob 24 can be mounted on the outer surface of the main body case 1 in a straight line. [Effects of the Invention] As explained above, according to the present invention, when mowing, it is possible to switch between high plowing and low plowing with a single touch, and as a means to reduce the amount of plowing, the rotational speed of the motor can be adjusted. Compared to conventional models that were driven by the same power to switch the amount of plowing when mowing, battery-powered models can extend the usable life of the battery. In addition, it reduces the vibration transmitted to the main body when mowing with a small amount of plowing, prevents camera shake, prevents plowing mistakes, alleviates the fear of over-cutting, and changes the sound of changing rotational speed. It has the advantage of being able to be grasped intuitively and preventing mistakes such as mowing. The use of a plow with a small amount of rake is especially effective when you have to work carefully or when you are dealing with someone who moves a lot, such as a small child. 4. Brief description of the drawings Fig. 1 is an external perspective view showing one embodiment of the electric hair clipper according to the present invention, Fig. 2 is a plan view showing the inside, Fig. 3 is an exploded perspective view, and Fig. 4 (1) ), (The old one is a plan view of the cutting edge showing the round cutting and plow cutting states, and FIG. 5 is an electric circuit diagram. FIG. 6 is an external perspective view showing another embodiment of the electric clipper according to the present invention, and FIG. Figures (a), (b) and Fig. 8 are a plan view and a sectional view showing a conventional example.2... Reaping device 4... Motor 18... Comb blade 23... Power changeover switch. Applicant Kyushu Hitachi Maxell Co., Ltd. Representative Makoto Sato

Claims (1)

[Claims] (1) A fixed blade 16, a movable blade 18 that makes sliding contact with the fixed blade 16, a motor 4 that drives the movable blade 18, and a fixed blade 16.
and a blade switching operation knob 13 that allows the movable blade 18 to be switched relatively to at least a circular cutting position and a plowing position in the front-rear direction perpendicular to the sliding direction, and a power switch that allows the power of the motor 4 to be switched to several levels. A changeover switch 23 and a power changeover operation knob 24 of the power changeover switch 23 are provided, and a power changeover operation knob is provided between the blade changeover operation knob 13 and the power changeover operation knob 24 when the blade changeover operation knob 13 is in the circular cutting position. This electric hair clipper is provided with a power switching regulating means 29 which prevents the movement of the power switching operation knob 24 to the low power position and enables the movement of the power switching operation knob 24 to the low power position only when the power switching operation knob 24 is switched to the plowing position.