JP2510489Y2 - Electric hair cutter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hair cutter used for hairdressing (hairdressing) and beauty (beauty).

[0002]

2. Description of the Related Art An electric hair cutter that can be used in a manner similar to manual scissors has been previously proposed by the same applicant (see, for example, Japanese Utility Model Publication No. 2-43336).

An example of this will be described with reference to FIG. 4. This electric hair cutter has a body portion 2 and a front portion of the body portion 2 which is coaxial with the body portion 2 as indicated by an arrow E. A slider unit 4 that is rotatably housed and has a slider 8 that can reciprocate (slide) in the slider unit case 6 as shown by arrow C, and a slider unit 4 that is housed in the body 2 as shown by arrow C. A motor 18 for reciprocating the body, a handle 24 attached to the body 2 and having a finger hole 24a for inserting a finger, a cap 30, an elongated stationary blade 32 and an elongated moving blade 34, and a body A blade unit 28 that is detachably (replaceable) attached to the front part of 2.
It has a shape similar to manual scissors as a whole.

The handle portion 24 is provided in order to improve usability.
In this example, the angle is variable as indicated by arrow H. The slider unit 4 can be rotated by packing 26 with appropriate hardness as shown by arrow E.

In the slider unit case 6, there are a pin 10, a U-shaped cam 12 rotatably supported by the pin as shown by an arrow B, and a pin 14 connecting the end of the cam 12 to the end of the slider 8. The cam 12 is provided with an eccentric pulley 16 on which a rotary shaft 18a of a motor 18 is eccentrically mounted, and in this example, the slider 8 is moved by an arrow C by such a mechanism and the motor 18. The electric drive means for reciprocating as described above is configured. When the rotation shaft 18a of the motor 18 is rotated, for example, as indicated by A, the eccentric pulley 16 reciprocally rotates about the pin 10 as a fulcrum as indicated by an arrow B, whereby the slider 8 is moved.
Moves linearly back and forth as indicated by arrow C. 20 is a switch, 2
2 is a cable for power supply.

In the blade unit 28, the stationary blade 32 has its root fixed to the cap 30 and has a large number of cutting teeth 32a along one long side thereof. The moving blade 34 cooperates with the stationary blade 32, is reciprocally stacked on the stationary blade 32 as indicated by an arrow D, and has a large number of cutting teeth 34a along one long side thereof. Cage and cap 3 at the base
Slider unit 4 has slider 8
Detachably coupled to. The reciprocating movement of the slider 8 as indicated by arrow C causes the moving blade 34 to reciprocate as indicated by arrow D.

A groove 2a is provided around the tip of the body portion 2, and a ridge 30a fitted into the groove 2a is provided inside the opening end of the cap 30.

A method of mounting the blade unit 28 will be described with reference to FIG. 5 as well. A recess 8a is provided at the tip of the slider 8 and a claw 34b for hooking the recess 8a is provided at the base end of the moving blade 34. This nail 34
As indicated by an arrow F, the portion b is put into the recess 8a of the slider 8 in the tip portion 6a of the slider unit case 6 and hooked, and in that state, the cap 30 is pushed toward the body portion 2 to form the groove 2a. The protrusion 30a is fitted.

Since the slider unit 4 is rotatable, by rotating the blade unit 28 as shown by the arrow E, the cutting teeth 32a, 3 of both the blades 32, 34 are rotated.
4a can be used with it oriented in any direction,
This improves usability.

An example of cutting hair using this electric haircutter is as follows:
The ring finger of one hand of the user is passed through the finger hole 24a and the part from the handle 24 to the body 2 is grasped to hold the electric hair cutter in a desired direction. And switch 2
With 0 turned on and the reciprocating blade 34 reciprocating, hair is automatically cut by simply applying the cutting teeth 32a, 34a of both blades 32, 34 to the portion of the hair to be cut. . In that case, as in the case of using the manual scissors, a comb held in the other hand may be attached if necessary.

[0011]

However, when a trial manufacture of the electric hair cutter as described above is carried out and used, the blade unit 28 is attached to the front portion of the body portion 2 and the moving blade 34 and the slider 8 are attached. It was found that the structure of the connecting part has the following problems.

As can be seen from FIG. 5, the tip of the slider 8 is the tip 6 a of the slider unit case 6.
Since the concave portion 8a is hard to see because it is located inside, and the stop position of the slider 8 is indefinite, the slider unit 4 can be further rotated as shown by the arrow E. It is difficult to put 34b in the recess 8a at the tip of the slider 8 and hook it, and it is hard to say that anyone can easily do it.

Since the claw 34a at the base of the moving blade 34 is simply put in the recess 8a of the slider 8 and hooked, the moving blade 34 may float during use and the engagement between the two may be lost.

There is looseness between the moving blade 34 and the slider 8, and the moving blade 34 floats or hits the slider 8 during use, so that the horizontal vibration of the moving blade 34 in use is loud and noisy. . However, if the claw 34b of the moving blade 34 is fitted into the recess 8a of the slider 8 exactly,
Since there is no margin, the work of engaging the two becomes more difficult.

In the structure in which the protrusion 30a of the cap 30 is fitted into the groove 2a of the body 2, it is difficult to remove it once fitted. On the contrary, if the fitting is loose, the blade unit 28 is likely to come off during use.

Therefore, in this invention, the blade unit can be easily and securely attached and detached, and the moving blade and the slider can be easily and surely connected. Further, the electric hair is improved so that the vibration of the moving blade is reduced. The main purpose is to provide a cutter.

[0017]

In order to achieve the above object, the electric hair cutter of the present invention has a slider unit case in which the tip end portion of the slider unit case is pushed out from the front portion of the body and An external thread and one or more pressing protrusions are provided on the outer circumference so that the slider tip is always exposed from the tip of the slider unit case, and the inlet of the slider is always exposed. The slider has a cross-sectional shape with a wide inner part.
A groove extending in a direction substantially perpendicular to the reciprocating direction of over, the the end of the root side of the moving blade of the blade unit, there is detachably fitted into the groove of the front end portion of the slider Circle
At the tip of the columnar part,
Is provided with a pin-shaped portion having a spherical head portion, and a female screw portion that is screwed into the male screw portion of the slider unit case is provided inside the opening end of the cap of the blade unit. The blade unit is detachably attached to the front of the body.

[0018]

According to the above structure, when the blade unit is mounted, the pin-shaped portion at the base end of the moving blade is fitted into the groove of the slider tip exposed from the tip of the slider unit case. You can screw the cap into the slider unit case with. At this time, if necessary,
If the pressing protrusion of the slider unit case is pressed with a finger, the slider unit does not rotate in the body portion, so that the blade unit can be attached more easily. When removing the blade unit, the procedure reverse to the above may be performed.

[0019]

1 is a view showing an electric hair cutter according to an embodiment of the present invention. FIG. 2 is a diagram showing how to install the blade unit of the electric hair cutter of FIG. 1. The same or corresponding portions as those of the conventional example shown in FIGS. 4 and 5 are designated by the same reference numerals, and the differences from the conventional example will be mainly described below.

In this embodiment, the front end of the slider unit case 6 as described above is brought out from the front portion of the body portion 2, and the male screw portion 6b is provided on the outer peripheral portion of the exposed portion.
Is provided. Further, two presser projections 6c are provided on the outer peripheral portion of the projecting portion so as to project to the outside slightly from the body portion 2 and the cap 30 of the blade unit 28 so as to face each other in this example.

Also, from the tip of the slider unit case 6, the tip of the slider 8 as described above is always exposed (that is, regardless of its reciprocating position) through the through hole 6d provided therein. I have to. The through hole 6d is shaped and shaped so that the slider 8 can pass through it exactly. The slider unit case 6, the slider 8 and the cap 30 of the blade unit 28 are made of resin, for example.

Instead of providing the concave portion 8a as in the conventional example in the portion of the slider 8 where the tip portion is always exposed,
A groove 8b having a cross-sectional shape in which the depth of the inlet portion is widened is provided in the vertical direction (that is, in the direction orthogonal to the reciprocating direction). The cross-sectional shape of the portion around the groove 8b is substantially C-shaped.

Further, instead of providing the claw 34b as in the conventional example at the root side end of the moving blade 34 of the blade unit 28 as described above, it is detachably fitted into the groove 8b at the tip of the slider 8. And the circle at the tip of the columnar part
A pin-shaped portion 46 having a disk-shaped head portion 46a larger than the columnar portion is provided. The pin-shaped portion 46 is made of resin, for example, and is fixed to the base end of the moving blade 34. Head 46
a may be spherical.

Further, instead of providing the protrusion 30a as in the conventional example inside the opening end of the cap 30 of the blade unit 28, a female screw portion 30b which is screwed with the male screw portion 6b of the slider unit case 6 is provided. The blade unit 28 is attached to the body portion 2 by screwing the two screw portions 6b and 30b together.
It is designed to be detachably attached to the front part of the.

FIG. 3 is an enlarged view of the blade portion of FIG. 1 viewed in the direction of arrow P. As a method of supporting the stationary blade 32 and the like from the cap 30, as described in the conventional example and as disclosed in the above-mentioned Japanese Utility Model Publication No. 2-43336, the base end of the stationary blade 32 is cap 30. Fixed to
Although the moving blade 34 may be reciprocally laid over the stationary blade 32, in this embodiment, in order to increase the fixing strength of the stationary blade 32 and the like with a simple structure, the blade case 3
6 is used.

That is, the blade case 36 is made of resin, and the base thereof is fixed to the cap 30 made of resin, and the stationary blade 32 is fixed to the blade case 36. In the blade case 36, the ridges 36 are provided along the long side opposite to the cutting teeth of the stationary blade 32 or the like.
a is provided, on which a pressing plate 38 is overlapped via a pad 42 and is fixed by some screws 40, whereby a moving blade is provided between the stationary blade 32 and the pad 42. A gap 44 corresponding to the thickness of 34 is formed, and a side opposite to the cutting tooth 34a of the moving blade 34 is inserted in this gap 44 to prevent the floating thereof, as shown by an arrow D in FIG. I try to guide the reciprocating motion. Moving blade 3
4, elongated holes (not shown) for allowing the moving blade 34 to slide are provided at positions corresponding to the respective screws 40. The pad 42 is provided in this example in order to avoid direct friction between the pressing plate 38 and the metal moving blade 34 because the pressing plate 38 is also made of resin.

According to the above electric hair cutter, when the blade unit 28 is attached to the front part of the body 2, the moving blade 3
As shown by an arrow G in FIG. 2, the pin-shaped portion 46 of the root end of the slider 4 is fitted into the groove 8b of the tip portion of the slider 8 exposed from the tip portion of the slider unit case 6, and in that state, the cap 30 The female screw portion 30b of the above may be screwed into the male screw portion 6b of the slider unit case 6. At this time, if necessary, if the pressing projection 6c of the slider unit case 6 is pressed by the finger on the side opposite to the side where the cap 30 is screwed in, the slider unit 4 will not rotate in the body 2, Since the pin-shaped portion 46 rotates in the groove 8b of the slider 8 as the cap 30 is screwed in, the blade unit 28 can be attached more easily.
When removing the blade unit 28, the procedure reverse to the above may be performed.

Moreover, according to the above structure, the following effects can be obtained.

As can be seen from FIG. 2, the tip of the slider 8 is always exposed from the tip of the slider unit case 6 regardless of the stop position of the slider 8 and the groove 8b at the tip is sufficiently visible. Also, presser projection 6
If c is pressed with a finger, the slider unit 4 including the slider unit case 6 and the slider 8 does not rotate in the body portion 2, and therefore the pin-shaped portion 46 at the base end of the moving blade 34.
Can be extremely easily fitted into or removed from the groove 8b of the slider 8 as indicated by an arrow G.

A disk-like or spherical shape at the tip of the cylindrical portion
The pin-shaped portion 46 having the head portion 46a of the
Of the slider has a cross-sectional shape with a wide inner part of the inlet.
Groove 8 extending in a direction substantially orthogonal to the reciprocating direction of the
Since the structure is such that the moving blade 34 and the slider 8 are joined by being fitted in b, the two are surely joined together and there is no risk of this joining coming off during use.

A disk-shaped or spherical shape at the tip of the cylindrical portion
The pin-shaped portion 46 having the head portion 46a of the
Of the slider has a cross-sectional shape with a wide inner part of the inlet.
Groove 8 extending in a direction substantially orthogonal to the reciprocating direction of the
Since it has a structure to be fitted into b, the moving blade 34 does not float or hit the slider 8 during use unlike the conventional example. Therefore, the horizontal vibration of the moving blade 34 during use is small and the sound is quiet. become. Further, even if the pin-shaped portion 46 is fitted in the groove 8b exactly, the groove 8b is always exposed as described above, so that the work of connecting the two is easy.

Since the cap unit 30 has a structure in which the blade unit 28 is attached and detached by screwing the cap unit 30 into the male screw portion 6 b of the slider unit case 6, when the attaching and detaching is performed, the pressing protrusion 6 is attached.
Since the slider unit 4 can be stopped by pressing c with a finger, the blade unit 28 can be easily attached and detached, and the blade unit 28 does not come off during use.

In the structure of the conventional slider unit 4, as can be seen from FIG. 5, a large gap for inserting the moving blade 34 is required between the slider 8 and the inner wall of the distal end portion 6 a of the slider unit case 6. From there, inside the slider unit 4 and then inside the body 2,
There is a risk that dust or hair may enter and cause troubles, etc., but in the structure of the slider unit 4 of the present invention, as shown in FIG. 2, the tip of the slider 8 is exposed from the slider unit case 6. The structure is such that there is a small gap between the through hole 6d provided in the slider unit case 6 and the slider 8 so that the slider 8 can reciprocate, and grease or the like can be applied thereto. Since it is possible, dust and hair are less likely to enter the inside of the slider unit 4 and the inside of the body portion 2 from there, and accordingly, the breakdown or the like is reduced.

The electric drive means for reciprocating the slider 8 is attached to a motor other than the above-mentioned example, for example, as disclosed in the above-mentioned Japanese Utility Model Publication No. 2-43336 and a rotary shaft thereof. The bevel gear, the bevel gear that meshes with the bevel gear, the eccentric pin that is erected on the bevel gear, and the elongated hole that is provided at the base of the slider and that accommodates the eccentric pin may be used. Further, the motor may be driven by a battery.

[0035]

As described above, according to this invention, the following various effects can be obtained.

Since the blade unit has a structure in which the cap of the blade unit is screwed into the slider unit case to attach / detach the blade unit, and when attaching / detaching, the pressing protrusion can be pressed with fingers to prevent the slider unit from rotating. The blade unit can be easily attached and removed, and there is no risk of the blade unit coming off during use.

Since the tip of the slider is always exposed from the slider unit case and its groove is fully visible, and if the pressing protrusion is pressed with fingers, the slider unit will not rotate in the body, so the base end of the moving blade The pin-shaped portion of can be fitted into or removed from the groove of the slider very easily, so that the moving blade and the slider can be easily joined and removed.

Disc-shaped or spherical shape at the tip of the cylindrical portion
Back of the pin-shaped portion having a head, the slider, the inlet
Has a cross-sectional shape that widens and the reciprocating direction of the slider
Since it is a structure that joins the moving blade and the slider by fitting it into a groove that extends in a direction substantially orthogonal to
The connection between the two is secure and there is no risk of this connection breaking during use. For the same reason, the horizontal vibration of the moving blade during use is small and the sound is quiet. Besides, it's a blade unit
When mixing, the moving blades will also rotate,
The pin-shaped part at the root end has the structure described above,
It can rotate freely in the groove at the tip of the idder
Therefore, it does not hinder the screwing of the blade unit.

Since the tip of the slider is exposed from the slider unit case and a slight gap is sufficient between the through hole provided in the slider unit case and the slider, the inside of the slider unit and the body are Dust and hair are less likely to get inside the part, and therefore less likely to malfunction.

[Brief description of drawings]

FIG. 1 is a view showing an electric hair cutter according to an embodiment of the present invention.

FIG. 2 is a diagram showing how to install the blade unit of the electric hair cutter of FIG.

3 is an enlarged view of the blade portion of FIG. 1 viewed in the direction of arrow P. FIG.

FIG. 4 is a diagram showing an example of a conventional electric hair cutter.

5 is a view showing how to install the blade unit of the electric hair cutter shown in FIG.

[Explanation of symbols]

 2 Body part 4 Slider unit 6 Slider unit case 6b Male screw part 6c Holding protrusion 8 Slider 8b Groove 18 Motor 24 Handle part 28 Blade unit 30 Cap 30b Female screw part 32 Static blade 34 Moving blade 46 Pin-shaped part

Claims (1)

(57) [Scope of utility model registration request] 1. A body portion, a slider unit that is housed in a front portion of the body portion so as to be rotatable coaxially with the body portion, and has a slider that can reciprocate in a slider unit case; Section and a slider unit case, and an electric drive means for reciprocating the slider, a handle portion attached to the body portion and having a finger hole for inserting a finger, and a body portion of the body portion. A cap detachably attached to the front portion, an elongated stationary blade fixed to the cap, having a plurality of cutting teeth along one long side thereof, and an elongated slidably reciprocally stacked on the stationary blade. A blade having a moving blade, which has a large number of cutting teeth along one long side thereof, a base side of which penetrates the cap and is detachably coupled to a slider of a slider unit. In an electric haircutter including a unit, the tip of the slider unit case is pushed out from the front of the body, and a male screw portion and one or more pressing protrusions are provided on the outer peripheral portion of the exposed portion. Make sure that the slider tip is always exposed from the slider unit case tip, and the depth of the inlet part has spread to the always exposed portion of this slider tip .
It has a cross-sectional shape and is approximately
A groove extending in a substantially orthogonal direction is provided, and the end of the blade unit on the base side of the moving blade is detachably fitted to the groove of the tip of the slider, and Column
A pin-shaped portion having a disk-shaped or spherical head larger than the blade-shaped portion is provided, and a female screw portion that engages with the male screw portion of the slider unit case is provided inside the opening end of the cap of the blade unit. An electric hair cutter in which a blade unit is detachably attached to a front portion of a body portion by screwing both screw portions together.