JP6429302B1 - Electric hair clipper - Google Patents

Abstract

Provided is a hair clipper that can easily perform a hairdressing operation even in a narrow space between the upper surface of a bed and the back of the hair to be haired, and can suppress a rise in temperature of the hair clipper blade. An electric hair clipper has a hair clipper blade portion, a hair clipper main body portion, and a ventilation portion. The clipper main body 120 includes a motor 121 that drives the clipper blade 111. The ventilation portion 130 includes an inlet 132, an air passage 133, and an outlet 134, and is integrally formed with the clipper main body 120. The inflow port 132 is formed at a position adjacent to the clipper blade portion 111. The air passage 130 is formed along the side surfaces of the clipper blade part 111 and the clipper main body part 120. The outflow port 134 is formed on the side surface of the hair clipper main body 120, and causes the air to flow out in a direction intersecting with the direction in which the air flowing in from the inflow port 132 flows along the side surface of the hair clipper main body 120. [Selection] Figure 1

Description

  The present invention relates to a suction type electric hair clipper.

  In recent years, with the progress of an aging society, an increasing number of people live in a hospital, a nursing home, a home, etc. while lying on their bed for most of the day. Such so-called “bedridden” people often have difficulty staying up on the bed, and for some people, it can be even difficult to get up.

  In general, when hairdressing a person who is lying on the bed, a hairdresser or barber (hereinafter referred to as a “hairmaker”) supports the head of the person to be haired (hereinafter referred to as “the hairdresser”). Therefore, hair is often tuned while the space between the bed and the head of the tuned person is secured. When the to-be-tuned person is lying on the bed, the height of the back of the to-be-tuned person with respect to the upper surface of the bed is usually about 15 to 20 cm at most. In consideration of an increased burden on the to-be-tuned person, it is not preferable to lift the to-be-tuned person's head to a height higher than this.

  In hospitals or nursing homes, the subject has a dementia or mental illness. In such a case, the hair styling person uses a suction type electric hair clipper instead of the hair styling used at a hair salon or a barber shop in consideration of the safety of the hair conditioned person.

  The suction-type electric hair clipper can be connected to a household vacuum cleaner by attaching an attachment attached to the electric hair clipper. The hairdresser cuts the hair of the to-be-tuned person with an electric hair clipper while sucking with the electric vacuum cleaner, so that much of the cut hair is collected by the electric vacuum cleaner and the scattering of the hair is suppressed (for example, the following patents) Reference 1).

JP 2000-245977 A

  However, the suction type electric hair clipper of Patent Document 1 has a structure in which an air suction port and a hair clipper blade portion are adjacently arranged at one end of a rod-like electric hair clipper and a suction hose is connected to the other end. Therefore, the hair styling person performs hair styling with a long electric clipper in a rod shape in a narrow space between the bed upper surface and the back head of the hair styling person, so that the hair styling work becomes difficult.

  In addition, in an electric hair clipper, the clipper blade usually operates so that the movable blade slides relative to the fixed blade and cuts the hair supported by the fixed blade. As a result, frictional heat is generated. As a result, the temperature of the hair clipper blade portion rises with time while the electric hair clipper is operating, and may reach a temperature at which a person feels heat when used for a long time.

  The present invention has been made in view of the above problems. Therefore, an object of the present invention is to provide an electric hair clipper in which a hairdresser can easily perform hairdressing work even in a narrow space between the upper surface of the bed and the back of the haired person, and can suppress the temperature rise of the clipper blade part. is there.

  The above object of the present invention is achieved by the following.

The electric hair clipper has a hair clipper blade portion, a hair clipper main body portion, a ventilation portion, and a connection portion . The clipper main body includes an electric motor that drives the clipper blade. The ventilation portion includes an inflow port, an air passage, and an outflow port, and is formed integrally with the clipper main body. The inflow port is formed at a position adjacent to the clipper blade portion. The air path is formed along the side surfaces of the clipper blade part and the clipper main body part. The outlet is formed on the side surface of the hair clipper main body, and the air flowing out from the inlet flows out of the air in a direction intersecting the direction of flowing along the side surface of the hair clipper main body through the air passage. Let The connection portion is configured to connect the outlet and the suction hose, and to change the direction of the suction hose from the root portion of the connection portion.

  According to the present invention, since the total length is shorter than the distance between the upper surface of the bed and the head of the to-be-tuned person, the hair adjuster can perform the hair-cutting work even in a narrow space between the upper surface of the bed and the to-be-tuned person's head. Can be easily performed. Moreover, since the air path is formed along one side surface of the clipper blade part and the clipper main body part, the temperature rise of the clipper blade part and the motor can be suppressed.

It is a schematic sectional drawing which illustrates the composition of the electric clipper in a 1st embodiment. It is a schematic diagram for demonstrating the usage example of the electric clipper shown in FIG. It is a schematic diagram for showing an example of how to hold the electric clipper shown in FIG. It is a schematic diagram for showing the other example of how to hold the electric clipper shown in FIG. It is a schematic diagram for showing the other example of how to hold the electric clipper shown in FIG. It is a graph which contrasts the time-dependent change of the temperature of the motor vicinity about the electric clipper of one Embodiment and the electric clipper of a comparative example. It is a graph which contrasts the time-dependent change of the temperature of a clipper blade part about the electric clipper of one embodiment, and the electric clipper of a comparative example. 6 is a schematic cross-sectional view illustrating the configuration of an electric hair clipper according to Modification 1. FIG. 10 is a schematic cross-sectional view illustrating the configuration of an electric hair clipper according to Modification 2. FIG. FIG. 10 is a schematic cross-sectional view illustrating the configuration of an electric hair clipper according to Modification 3. It is a perspective view which illustrates the appearance of an electric clipper. It is a front view which illustrates the appearance of an electric clipper. It is a right view which illustrates the external appearance of an electric clipper. It is a top view which illustrates the appearance of an electric clipper. It is a rear view which illustrates the appearance of an electric clipper. It is a bottom view which illustrates the appearance of an electric clipper.

  Hereinafter, embodiments of the electric clipper of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same members. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may be different from the actual ratios.

(One embodiment)
<Electric hair clipper 100>
FIG. 1 is a schematic cross-sectional view illustrating the configuration of an electric hair clipper according to an embodiment of the invention. As shown in FIG. 1, the electric hair clipper 100 includes a hair clipper blade unit 110, a hair clipper main body 120, a ventilation portion 130, a housing 140, and a light emitting portion 150.

<Clipper blade unit 110>
The clipper blade unit 110 has a clipper blade part 111 and a conversion mechanism 112. The clipper blade portion 111 includes a movable blade and a fixed blade (both not shown) formed in a comb-like shape. Hair that is bundled and introduced into the groove of the fixed blade is supported by the fixed blade. The movable blade reciprocates linearly in contact with the fixed blade. As a result, the hair is clipped one by one between the movable blade and the edge of the fixed blade.

  The conversion mechanism 112 converts the rotational motion of the rotation shaft of the motor 121 of the clipper main body 120 into a linear reciprocating motion.

<Hair clipper body 120>
The clipper main body 120 includes a motor 121 and a power supply unit 122. The motor 121 and the power supply unit 122 are housed in, for example, a resin casing 140, and the casing 140 and the ventilation section 130 are integrally formed. The housing 140 includes a main body housing 142 that houses the clipper main body 120 and covers a part of the clipper blade unit 110, and a ventilation outer wall 143 that constitutes the outer wall of the ventilation section 130.

  The rotation axis of the motor 121 is coupled to the conversion mechanism 112 of the clipper blade unit 110 and rotationally drives the conversion mechanism 112.

  The power supply unit 122 is disposed between the bottom 141 of the housing 140 and the motor 121 and includes a power supply circuit and a drive circuit (not shown). The power supply circuit converts electric power supplied from the outside into a voltage and current suitable for the drive circuit, and supplies the converted voltage and current. When a hair switch operates a power switch (not shown), the drive circuit drives the motor 121 according to the on / off state of the power switch. Note that the power supply unit 122 may include a rechargeable battery and supply voltage and current for driving the motor 121 from the battery.

<Ventilation unit 130>
The ventilation unit 130 includes a connection unit 131, an inflow port 132, an air path 133, and an outflow port 134. The ventilation unit 130 sucks the hair cut by the clipper blade unit 111 from the inflow port 132 and discharges it to the outflow port 134 by a vacuum cleaner (not shown). The outflow port 134 is connected to the connection portion 131, and the air and hair discharged from the outflow port 134 are absorbed by the vacuum cleaner through the suction hose 200 (see FIG. 2) connected to the connection portion 131. Is done.

  The inflow port 132 is formed at a position adjacent to the clipper blade portion 111 in the housing 140. The cross-sectional area A1 of the inflow port 132 is preferably smaller than the cross-sectional area A2 of the outflow port 134. By setting A1 <A2, the average flow velocity of the air flowing in at the inlet 132 can be made larger than the average flow velocity of the air flowing out at the outlet 134, and the hair suction efficiency at the inlet 132 can be improved. . Thereby, it can prevent that a part of hair cut | disconnected by the clipper blade part 111 scatters on a scalp etc. on a bed or a to-be-tuned person.

  Further, as will be described later, the clipper blade 111 can be efficiently cooled by reducing the cross-sectional area of the inlet 132 and increasing the flow velocity of the inflowing air.

  The air passage 133 is a tubular air passage formed in a space between the main body housing 142 and the ventilation outer wall portion 143 from the inflow port 132 to the outflow port 134, and includes the clipper blade portion 111 and the clipper main body portion 120. It is formed along one side. The air passage 133 is formed in a curved shape from the inlet 132 formed in the vicinity of the clipper blade portion 111 toward the outlet 134 formed on the side surface of the motor 121.

  As described above, since the air passage 133 is formed along one side surface of the clipper blade part 111 and the clipper main body part 120, the air flowing in from the inflow port 132 contacts the clipper blade part 111 and the clipper main body part 120. Take heat away. As a result, the clipper blade part 111 and the clipper main body part 120 are cooled. Details of the cooling effect on the clipper blade 111 and the clipper main body 120 will be described later.

  The outflow port 134 is formed on the side surface of the hair clipper main body 120, and intersects the direction in which the air flowing in from the inflow port 132 flows along the side surface of the hair clipper main body portion 120 (the direction of arrow F <b> 1 in FIG. 1). Air flows out in the direction of arrow F2 in FIG. In this embodiment, the outflow port 134 and the connection part 131 are formed so that air flows out in the direction substantially orthogonal to the F1 direction, for example.

  The connection portion 131 may be fixedly formed so that the outflow direction of air is directed in a fixed direction, and the outflow direction of air at the outflow port 134, that is, the direction of the suction hose 200 at the connection portion 131 can be freely set. You may comprise so that it can change to. For example, the connecting portion 131 is formed as an annular member separate from the housing 140, and is configured to be rotatable about a central axis that passes through the center of the ring in the YZ plane and is parallel to the X-axis direction. Can be done. Further, the connecting portion 131 can be configured to be able to rotate about 180 ° about an axis parallel to the YZ plane passing through the center of the outlet 134 in the YZ plane. For example, as shown by the alternate long and short dash line in FIG. 1, the connection portion 131 can be rotated within a range within ± 90 degrees with respect to the X-axis direction or set at a predetermined angle at the root portion. In this manner, by configuring the suction hose 200 so that the direction of the suction hose 200 can be freely changed from the root portion of the connection portion 131, the hairdresser can more flexibly cope with the spatial restrictions in the environment where hairdressing is performed. can do.

  In addition, the electric hair clipper 100 includes a light emitting unit 150 that is disposed on the outer surface of the housing 140 and functions as illumination. The light emitting unit 150 is disposed, for example, in the vicinity of the inlet 132 of the ventilation unit 130 and may include a light emitting element such as an LED. Since the hair stylist can perform hair styling while illuminating the hair of the hair tuned person 300 from the irradiation light from the light emitting section 150, for example, hair styling can be easily performed in the back of the head, which is shaded by the electric lighting in the room.

  As described above, in the electric clipper 100 of the present embodiment, the outflow port 134 is formed so that the outflow direction is the F2 direction with respect to the direction F1 in which air flows in the air passage 133. The length in the longitudinal direction, that is, the Y-axis direction can be shortened. The total length H1 of the electric hair clipper 100 is about 15 cm, for example, and is about half the size of a conventional suction type electric hair clipper.

<Usage example of electric clipper 100>
FIG. 2 is a schematic diagram for explaining an example of use of the electric clipper 100 shown in FIG. 3A to 3C are schematic views for illustrating how to hold the electric clipper 100 shown in FIG. 3A to 3C, the clipper blade unit 110 is not shown. As described above, the “bed-ridden” hair-regarded person 300 in a hospital, a nursing facility or the like is hair-regulated by the hair-regulator while lying on the bed 400. The distance between the upper surface 401 of the bed 400 and the back head of the to-be-haired person 300, that is, the height H2 of the head of the to-be-haired person 300 is usually about 15 to 20 cm at most. Since the total length of the electric hair clipper 100 of this embodiment is about 15 cm, the hair stylist can easily perform the hair styling of the person to be tuned 300 using the electric hair clipper 100. Further, since the direction of the suction hose can be freely changed in the connecting portion 131, the suction hose 200 can be extended in the direction along the upper surface 401 of the bed 400, so that the bed 400 and the suction hose 200 are less likely to interfere with each other.

  Next, how to hold the hair using the electric hair clipper 100 will be described. The electric hair clipper 100 of the present embodiment has a more compact size as the portion of the housing 140 protruding from the hand is smaller when the hairdresser holds it in the hand. it can.

  As shown in FIG. 3A, the hairdresser places the palm of the electric clipper 100 parallel to the YZ plane, points the index finger from the index finger in the −Z direction, and places the thumb on the base portion of the connection portion 131. The case 140 of the clipper 100 can be held between the index finger and the belly of the ring finger and the belly of the thumb.

  As shown in FIG. 2, when the electric hair clipper 100 is held in such a manner, the hair stylist can easily shave the hair on the back of the to-be-tuned person 300.

  Further, as shown in FIG. 3B, the hairdresser may hold the electric hair clipper 100 by placing the thumb on the side of the electric hair clipper 100 and directing the bottom of the electric hair clipper 100 from the index finger to the belly of the ring finger. it can. That is, with respect to the electric clipper 100, the palm is parallel to the YZ plane, the index finger is pointed in the X-axis direction, and the belly of the ring finger is pressed from the index finger to the bottom of the electric clipper 100 in the Y-axis direction. Thus, the electric clipper 100 can be held and held.

  Since the hairdresser can hold the electric hair clipper 100 as shown in FIG. 3B, when the hair of the hair to be trained 300 is cut in front of or next to the hair to be haired 300, or when it is used for sports cutting or the like, There is no need to take an unreasonable posture. On the other hand, such a holding method is not possible with a conventional suction electric clipper.

  Further, as shown in FIG. 3C, the hairdresser uses the compactness of the electric hair clipper 100 to change how to put fingers on the housing 140 and the connection portion 131 as necessary. Thus, it can be held in a manner suitable for hairdressing.

<Cooling effect on clipper blade 111 and motor 121 by air flow in air passage 133>
The inventors measured the temperature of the clipper blade 111 of the electric clipper 100 of the present embodiment and the casing 140 (main body housing 142) near the motor 121 over time. In addition, the suction of the vacuum cleaner for sucking the cut hair was measured as the strength between “weak” and “medium”. The measurement results are shown in Table 1 below.

  In addition, as a comparative example, the inventors measured the temperature of the hair clipper blade part of the beauty hair clipper and the housing near the motor over time. The beauty hair clipper used for the measurement was a suction type electric hair clipper, but the power of the electric vacuum cleaner for sucking the cut hair was turned off. The measurement results are shown in Table 2 below.

  FIG. 4A is a graph comparing the time-dependent changes in the temperature around the motor for the electric clipper 100 of this embodiment and the clipper of the comparative example, and FIG. 4B is for the electric clipper 100 of this embodiment and the clipper of the comparative example. It is a graph which contrasts the time-dependent change of the temperature of a clipper blade part.

  As shown in FIG. 4A, in the clipper of the comparative example, the temperature of the casing near the motor increased with time from the start of the measurement, and reached 41.3 ° C. after 30 minutes. On the other hand, in the electric hair clipper 100 of the present embodiment, the temperature of the housing 140 near the motor 121 slightly increased from the start of measurement, but became substantially constant at 27 to 28 ° C.

  Moreover, as shown in FIG. 4B, in the clipper of the comparative example, the temperature of the clipper blade portion increases with time from the start of measurement, reaching 50.6 ° C. after 30 minutes, and reaching 51.3 ° C. after 40 minutes. did. On the other hand, in the electric hair clipper 100 of the present embodiment, the temperature of the hair clipper blade portion 111 slightly increased from the start of measurement, but became substantially constant at 24 to 25 ° C.

  Thus, in the electric clipper 100 of this embodiment, it has confirmed that the effect that the clipper blade part 111 and the motor 121 were cooled by the airflow which flows into the air path 133 was remarkably high.

  Therefore, in the electric hair clipper 100 of this embodiment, the temperature rise of the hair clipper blade part 111 which the to-be-tuned person 300 may touch can be suppressed effectively. Moreover, since the temperature rise of the motor 121 can be suppressed, the operating conditions of the motor can be improved. As a result, it is possible to extend the life of the motor.

  In the following first to third modifications, the electric hair clipper 100 further includes a cooling unit that cools the motor 121 between the air passage 133 and the motor 121.

(Modification 1)
FIG. 5 is a schematic cross-sectional view illustrating the configuration of the electric clipper 100 of the first modification. In the first modification, the main body housing 142 near the side surface of the motor 121 is brought closer to the motor 121 side, and the thickness of the main body housing 142 is reduced. That is, the motor 121 is disposed in the vicinity of the air path 133. As a result, the air flow comes into contact with the main body housing 142 formed with a small thickness to function as a cooling unit, and the heat generated by the motor 121 is efficiently transferred to the air flow flowing through the air passage 133. As a result, the cooling effect on the motor 121 is improved.

(Modification 2)
FIG. 6 is a schematic cross-sectional view illustrating the configuration of the electric clipper 100 of the second modification. In the second modification, the metal plate 144 is inserted into the main body housing 142 near the side surface of the motor 121. That is, the air path 133 and the motor 121 are partitioned by the metal plate 144 having the same thickness as the main body housing 142. Thereby, the metal plate 144 functions as a cooling unit, and the heat generated by the motor 121 is efficiently transmitted to the airflow flowing through the air passage 133. As a result, the cooling effect on the motor 121 is improved.

(Modification 3)
FIG. 7 is a schematic cross-sectional view illustrating the configuration of the electric hair clipper 100 of the third modification. In the third modification, a stitch 145 is formed in the main body housing 142 near the side surface of the motor 121. That is, a stitch that allows air to pass through is formed in the wall portion of the main body housing 142 between the air passage 133 and the motor 121. Thus, the stitch functions as a cooling unit, and the heat generated by the motor 121 is efficiently transmitted to the air flow flowing through the air path 133. As a result, the cooling effect on the motor 121 is improved. In addition, it is preferable that the stitches 145 are fine enough to prevent hair flowing along with the air from passing through the air passage.

  In the conventional electric clipper, cooling of the clipper blade part and the motor is not sufficient. Therefore, when a hair stylist performs hair styling for a large number of subjects, or when performing hair styling for a long time, for example, two or three electric hair clippers are used every 20-30 minutes. It is necessary to devise measures to avoid overheating of the motor. However, in the electric hair clipper 100 of this embodiment, the hair clipper blade part and the motor are sufficiently cooled, so that a single electric hair clipper is used to perform hair conditioning for a large number of subjects, or continuously over 30 minutes. It is also possible to use it.

<Appearance of electric clipper 100>
8 to 13 are a perspective view, a front view, a right side view, a plan view, a rear view, and a bottom view, respectively, illustrating the appearance of the electric hair clipper 100. Note that the left side view is omitted because it is symmetrical with the right side view.

  The electric hair clipper 100 of the present embodiment described above has a total length shorter than the distance between the upper surface of the bed 400 and the head of the to-be-tuned person 300. Hairdressing work can be easily performed in a narrow space between the head. Moreover, since the air path 133 is formed along one side surface of the clipper blade part 111 and the clipper main body part 120, the temperature rise of the clipper blade part 111 and the motor 121 can be suppressed.

  As described above, the clippers of the present invention have been described in the embodiments. However, it goes without saying that the present invention can be appropriately added, modified, and omitted by those skilled in the art within the scope of the technical idea.

100 electric clippers,
110 hair clipper blade unit,
111 Hair clipper blade,
112 conversion mechanism,
120 clipper body,
121 motor,
122 power supply,
130 Ventilation part,
131 connections,
132 Inlet,
133 Airway,
134 outlet,
140 housing,
141 bottom,
142 body housing,
143 Ventilation outer wall,
144 metal plate,
145 stitches,
150 light emitting part,
200 Suction hose.

Claims (6)

Hair clipper blade,
A hair clipper main body comprising an electric motor for driving the hair clipper blade,
An inflow port formed at a position adjacent to the clipper blade part, an air passage formed along a side surface of the clipper blade part and the clipper main body part, and a side surface of the clipper main body part, An outflow port through which the air flows out in a direction intersecting with the direction in which the air flowing in from the inlet flows along the side surface of the hair clipper main body through the air passage, and is formed integrally with the hair clipper main body. A ventilation section,
A connecting portion for connecting the outlet and the suction hose;
I have a,
The electric clipper is configured so that the connection portion can change the direction of the suction hose from a root portion of the connection portion . A housing for accommodating the hair clipper main body;
The clipper main body includes a power supply unit that drives the electric motor,
The power supply unit is
Arranged between the bottom of the housing and the electric motor ;
The wall portion of the housing between the air passage and the electric motor is formed thinner than the other wall portions of the housing,
The electric clipper according to claim 1, wherein the electric motor is disposed in proximity to the air passage through a wall portion of the casing that is formed with a small thickness . A housing for accommodating the hair clipper main body;
The clipper main body includes a power supply unit that drives the electric motor,
The power supply unit is
Arranged between the bottom of the housing and the electric motor;
The electric hair clipper according to claim 1 , wherein the air passage and the electric motor are partitioned by a metal plate . The electric hair clipper according to any one of claims 1 to 3 , further comprising a light emitting unit that is disposed on an outer surface of the housing and functions as illumination . The electric power clipper according to any one of claims 1 to 4 , wherein the power supply unit includes a rechargeable battery and supplies electric power for driving the electric motor from the battery . The electric hair clipper according to any one of claims 1 to 5 , wherein a cross-sectional area of the inlet is smaller than a cross-sectional area of the outlet .