JPH0418481Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of an automatic hair iron.

PRIOR ART The present applicant has proposed the one in Japanese Patent Application Laid-Open No. 61-5918 as an improvement on the conventional hair iron, which improves the temperature of the rods, heating time, etc. of the hair with the hair iron. It is automated so that it can be performed without requiring skilled technology.

Problems to be solved by the invention The above-mentioned patent application No. 61-5918 can fully contribute to automating the hair shaping work using a hair iron, but there are some problems with the hair feeding action, etc. A point is left.

Means for Solving the Problems The present invention consists of a substantially cylindrical rod whose base is rotatably supported by a main body, a heater housed in the rod to heat the rod, and a main body opposite to the rod. a glove that can be opened and closed between the glove and the rod; a motor that is installed in the main body and rotates the rod; In an automatic hair iron equipped with rollers that are forcibly rotated by the motor in the opposite direction, the outer surface of the rod has a height of approximately 0.2 mm and an apex angle of approximately 90°.
In addition, chevron-shaped protrusions with rounded apexes are regularly arranged at equal intervals with a groove width of approximately 0.15 mm in the direction parallel to the rod axis and in the direction orthogonal to this.

Function: The hair is held between the rod and the glove, and the held hair is automatically sent out by the rotation of the rod and the rotation of the roller on the glove side. In this case, the hair is divided into grooves between chevron-shaped protrusions arranged at equal intervals in the axial direction of the rod, and while being gripped, the hair is fed out with the direction corrected in a direction perpendicular to the rod axis.
Moreover, since the above-mentioned chevron-shaped protrusions are aligned in the circumferential direction of the rod at equal intervals with grooves in between, the hair held between the rod and the glove is divided into small pieces in the axial direction of the rod between the chevron-shaped protrusions and is focused. When grasped,
The part of each divided hair bundle that elastically bulges out in the direction of the rod's axis toward the groove between the chevron-shaped protrusions in the circumferential direction of the rod generates a locking force in the direction of rotation of the rod, which prevents the rod from rotating. Power can be reliably transmitted and sent to the entire hair bundle.

Embodiment In FIGS. 1 and 1a, 1 is a rod having a built-in heater 12', and is rotated by a motor 10 housed in a main body 9. In FIG. 2 is a glove that can be opened and closed with respect to the rod 1 around the pin 4; when the handle 5 is pressed down with a fingertip, it opens to the position shown in Figure 1, and hair can be inserted between the glove and the rod 1; When released, the elasticity of the spring 6 closes and traps the hair between it and the rod 1.

Reference numeral 3 denotes rollers which are rotatably mounted on each side of the glove 2. One end of the roller 3 penetrates inside the handle 5, and a roller gear 17 is formed at the shaft end of the roller 3. When the glove 2 is closed, it meshes with the rod gear 16 provided integrally with the rod 1, and the rod is rotated. When 1 rotates,
Rotate roller 3 in the opposite direction to rod 1 at a circumferential speed equal to the circumferential speed of rod 1 to connect rod 1 and roller 3.
It helps to send out the hair that is caught in between.

If the switch 7 is turned on, the motor 10 will rotate, and if it is turned off, it will stop. 8 is the gear storage section,
11 is an electric wire.

Next, the present invention will be explained using an example in which a twill knurl groove is created on the outer surface of the rod 1.

12 in FIG. 1 is a knurled portion.

FIG. 2 is an enlarged plan view of the knurling portion. FIG. 3 shows an enlarged cross-section of the knurling portion cut perpendicular to the knurling groove along the chain line B--B.

In FIG. 3, the apex 13 of the knurling has a spherical roundness with a radius of about 0.1 mm to prevent damage to the hair. The groove 14 on the bottom of the knurling has a width of about 0.15 mm to prevent hair from getting caught, and the angle of the peak is about 90°. Due to the size distribution as described above, the hair bitten into the knurled grooves can be easily removed from the rod 1 without being damaged. Also, the height C of the knurled peak is approximately 0.2 mm. This is because when ironing, the practitioner slices the hair to an appropriate thickness before starting the ironing process. The dimensions are to accommodate the

[X1-X1'] line, [X2-X2'] in Figure 2
The lines [X3-X3'] are a group of straight lines parallel to the axis center line of rod 1, and all of the vertices 13 of the knurling are on these group of straight lines, which will be referred to as the group of vertices in the X direction. .

Also, [Y1 to Y1'] line, [Y2 to Y2'] line,
The lines [Y3 to Y3'] are a group of parallel lines perpendicular to the above-mentioned straight lines, and all the vertices 13 of the knurling are located on these straight lines, which will be referred to as the Y-direction apex group.

FIG. 4 shows the hair 15 sandwiched between the rod 1 and two rollers 3, with the central part of the glove 2 removed to make the main part easier to understand.

When the rod 1 rotates in the direction of the arrow shown at the right end of FIG. 4, the hair 15 is sent from top to bottom in FIG. , the hair 15 is moved at a speed exactly equal to the circumferential speed of the rod 1 while preventing the hair 15 from slipping.
send out.

FIG. 5 shows a case where the hair 15 on the entering side is not perpendicular to the axial center line of the rod 1, but is inclined. Normal ironing work is done by hand, so always use the fifth iron.
Enter at an angle in the direction shown or in the opposite direction.

At this time, for example, if only a knurled groove parallel to the axial center line of rod 1 is provided on the outer surface of rod 1, the incoming hair will gradually move in the X direction in FIG. 5 as rod 1 rotates. , it will soon come off Rod 1 and you will not be able to continue working.

However, in the case of the knurling of the present invention, after the hair 15 comes into contact with the rod 1 due to the action of the group of vertices in the X direction, the hair 15 automatically moves in the direction perpendicular to the axial center line of the rod 1, as shown in FIG. The movement in the X direction is extremely small.

Similarly, when the inclination of the incoming hair 15 is opposite to that shown in FIG.
5 is fed while always maintaining a constant position, making the work easier.

As explained above, by creating the twill knurling on the surface of the rod 1, the hair 15 maintains a stable peripheral speed in the tangential direction of the rod 1, and in the axial direction of the rod 1. It exhibits the effect of maintaining a stable position and can improve the workability of automatic hair irons.

The basic principle of the present invention is that free movement of the hair 15 is suppressed by regularly arranging a group of vertices in the X direction and a group of vertices in the Y direction as shown in FIG. 2 on the outer surface of the rod 1.

Therefore, the case where the inclination angle A of one of the two intersecting knurling grooves and the inclination angle A' of the other in Fig. 2 are equal is the twill knurling shown in Fig. 6, and the inclination angle of one A is 0° and the other angle of inclination A′ is 90°
The case can be said to be the cross knurling shown in FIG. 7, and in both cases, the group of vertices in the X direction and the group of vertices in the Y direction are regularly aligned.

In addition, a similar effect can be obtained by creating a plurality of protrusions on the outer surface of the rod 1 as shown in FIG. 8, which satisfies the above-mentioned principle, and various other protrusions other than those shown in the example are conceivable.

Effects of the invention According to the invention, when the hair is held between the rod and the glove and the hair is automatically sent out by the rotation of the rod and the rotation of the roller on the glove side, the entrance angle of the hair is Even if the hair is not exactly perpendicular to the axis, the hair is divided into grooves between the chevron-shaped protrusions arranged at equal intervals in the axial direction of the rod, and while being held, the direction is corrected in the direction perpendicular to the rod axis. can be sent out. Therefore, there is an advantage that the operation by the practitioner is facilitated.
The above-mentioned chevron-shaped protrusions are arranged in a direction perpendicular to the axis of the rod, that is, in the circumferential direction of the rod as well, with grooves interposed at equal intervals. When the hair is divided into small bundles in the rod's axial direction and focused and gripped, each divided hair bundle can elastically bulge out in the rod's axial direction toward the groove between the chevron-shaped protrusions in the circumferential direction of the rod. As a result, when the rotational force of the rod is transmitted to the hair by the chevron-shaped protrusions, the hair portion that swells between the chevron-shaped protrusions generates a locking force in the rotational direction of the rod, and the rotational force of the rod is transmitted to the entire hair bundle. It has the advantage that it can be transmitted reliably.

The diameter of the rod varies depending on the diameter of the curl to be shaped, but the size of the chevron formed on the external surface of the rod is determined by the height and apex angle.
If it is too high, the valley between the chevron-shaped protrusions between the rod and the glove will become too large and will not be able to grip the hair, and if it is too low, the above-mentioned locking force will be insufficient, so a value of about 0.2 mm is appropriate. be.

Further, the groove width determines the arrangement pitch of the chevron-shaped protrusions, and approximately 0.15 mm is appropriate for the same reason as above.

Furthermore, the apex of the chevron-shaped protrusion is rounded, which has the advantage of facilitating the division of hair into small sections and alleviating the pain felt when the hair is brought into contact with the scalp.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the overall appearance of the automatic hair iron according to the present invention, Fig. 1a is an enlarged perspective view of the rod base in Fig. 1, Fig. 2 is a developed view of the knurling, and Fig. 3 is Fig. 2B. 4 and 5 are explanatory diagrams of the working mode of the automatic hair iron of the present invention, and FIGS. 6 to 8 are enlarged sectional views taken along line B. FIG. 3 is a front view of a rod showing an example of its formation. 1... Rod, 2... Glove, 3... Roller, 4... Pin, 5... Handle, 6... Spring,
7... Switch, 8... Gear storage section, 9... Main body, 10... Motor, 9, 11... Electric wire, 12
...Roretsu.

Claims (1)

[Claims for Utility Model Registration] A substantially cylindrical rod whose base is rotatably supported by the main body, a heater housed in the rod to heat the rod, and a rod that can be opened and closed on the main body facing the rod. A glove is provided to sandwich the hair between the hair and the rod, a motor is installed in the main body to rotationally drive the rod, and a motor is provided on the opposite surface of the glove to the rod and rotates at approximately the same circumferential speed as the rod in the opposite direction. In an automatic hair iron equipped with rollers that are forcibly rotated by the above-mentioned motor, the outer surface of the rod has a height of approximately 0.2 mm and an apex angle of approximately 90°.
and is characterized by having chevron-shaped protrusions with rounded apexes arranged regularly at equal intervals with a groove width of about 0.15 mm in the direction parallel to the rod axis and in the direction orthogonal to this. Automatic hair iron.