KR20080001129U - Blade structure of an electrical hair trimmer - Google Patents

Abstract

The blade structure of the electric hair trimmer is a blade set installed at the front end of the body. The blade set includes a vibrating sheet and a fixed blade connected to the working blade. The front end of the fixed blade and the working blade is provided with a plurality of teeth, the vibration sheet is driven by a motor inside the body to move the working blade alternately with the fixed blade. The lower part of the edge portion at both sides of the working blade extends outwardly from the top to the bottom to form an externally extending surface with a sharp working angle. Therefore, when the hair is cut, the contact area between the edges of the hair is reduced to reduce the resistance to cutting, so that the hair is cut quickly and the cutting speed and efficiency are improved and the hair is prevented from being damaged. This can extend the service life of the electric hair trimmer.

Electric hair trimmer, vibration sheet, fixed blade, working blade, blade structure, working angle, cutting

Description

Blade structure of electric hair trimmer {BLADE STRUCTURE OF AN ELECTRICAL HAIR TRIMMER}

The present invention relates to a blade structure of an electric hair trimmer that allows hair to be cut smoothly and more quickly, and more particularly a blade structure having less resistance to cutting.

The blade set of the conventional electric hair trimmer is located at the front end of the body. The blade set consists essentially of the lower fixed blade and the lower fixed blade overlaps the upper movable blade connected to the vibrating sheet. The working blade is coupled by a vibrating sheet driven by a motor inside the body to be reciprocated in the left and right directions to form an alternate direction movement with the fixed blade to cut the hair.

1 and 2, the front end of the working blade is generally composed of a plurality of teeth A to form a sawtooth. The side of each tooth A is a blade edge B that contacts the hair C to cut the hair. The blade edge B is slightly inclined straight and is almost vertical in cross section. Therefore, when the working blade moves from side to side to alternate with the fixed blade generating the shear force, the blade edge B is approximately in contact with the hair in the plane. Since the contact area is wide, the resistive force also increases. Thus, in the case of hair cutting, it becomes more difficult to drive the motor of the body and it is not easy for the hair to be cut smoothly and quickly. Therefore, the hair is usually sandwiched between the blades or forcibly pulled and cut to damage the hair. In addition, the effect and speed of hair cutting are greatly reduced and the edge edge is also easily damaged. Since the hair is not easily cut, the cutting time is also increased, and the motor is overheated due to overload, resulting in easy wear of the hair trimmer and shortening the service life of the hair trimmer. Therefore, the conventional electric hair trimmer does not comply well with the requirements of the user, and improvement is required.

The main object of the present invention is to provide a blade structure having a smaller resistance to cutting and thus cutting hair smoothly and smoothly and having a better cutting effect.

Another object of the present invention is to provide a blade structure of the electric hair trimmer which requires less labor for cutting and can extend the service life of the hair trimmer.

Another object of the present invention is to provide a blade structure of the electric hair trimmer which can prevent the hairline from moving to increase the cutting speed and seals more hair.

The front end of the working blade and the fixed blade of the electric hair trimmer are provided with a plurality of teeth, and the side of the tooth of each working blade is formed of an edge portion which cuts hair in contact with the hair. By extending outward from the top to the bottom, an externally extending surface with a sharp working angle is formed. Thus, when the working blade and the fixed blade alternate in order to cut the hair, the contact area between the edge of the working blade and the hair becomes smaller and the resistance to cutting is greatly reduced, so that the hair can be cut very quickly. In addition, since the motor can be prevented from being overloaded, the service life of the electric hair trimmer is extended. On the other hand, the edge portion of the working blade can be formed with a plurality of continuous grooves to fix and seal more hair, and the hairline can slide outward to prevent movement, so that cutting is achieved more quickly and efficiently. To be possible.

BRIEF DESCRIPTION OF DRAWINGS To better understand the above objects and technical methods of the present invention, the following provides a brief description of the details and the figures for carrying out the invention.

The present invention has a smaller resistance to cutting, so the hair can be cut quickly and smoothly.

The present invention requires less effort for cutting and has the effect of extending the service life of the hair trimmer.

The present invention has the effect of increasing the cutting speed because it can prevent the hairline to move and seal more hair.

3, 4 and 5 show, respectively, a perspective view of the structure of the present invention, a perspective view of the first embodiment of the working blade, and an enlarged view of a single tooth of the present invention. The front end of the working blade 22 has a plurality of teeth 1 which are triangular toothed, and the two sides of each tooth 1 are formed by the edge 13 which cuts hair in contact with the hair. do. Fig. 6 shows a cross-sectional view along the line A-A 'of Fig. 5, in which the upper part of the edge portion 13 is straight and the lower part is arc-shaped and extends outward from the top to the bottom, with a sharp working angle. An external extension surface 12 is formed. The edge portion 13 has a plurality of arc shapes and continuous grooves, and the continuous groove extends outward from an arc line at the bottom of the edge portion 13 so that the lower portion of the edge portion 13 is an arc surface like a wave. To be able to form.

In Fig. 7, a sharp cutting angle is formed by the external extension surface 12 at the lower end of the edge portion 13, and in the case where the working blade moves reciprocally in the transverse direction to cut the hair 2, The contact area of is reduced due to the sharp working angle formed by the external extension surface 12 at the lower end of the edge portion 13, and thus the total resistance to be endured by the edge portion 13 is generally reduced, so that the hair 2 It can be cut very quickly and greatly improves the speed of hair cutting. Since the hair 2 can be cut quickly, there is no need to pull the hair 2 and the beauty effect of the haircut is much better than before. In addition, damage to the hair 2 can be prevented, and the blade edge is not easily worn. When the hair 2 is cut off smoothly, the service life of the motor 11 can be extended because the motor 11 inside the machine body can also operate smoothly without being overloaded.

In the case of cutting the hair 2, the above-described arc-shaped continuous groove 14 fixes and surrounds a large amount of hairline, thereby preventing the hairline from slipping and moving outwardly released during cutting. Therefore, a large amount of hair can be cut well with the external extension surface 12 having a sharp cutting angle, and the speed and efficiency of hair cutting are further improved.

8 and 9 show cross-sectional views of a tooth, which is a second embodiment of the present invention, and a schematic view of the haircutting in FIG. 8, respectively. The thickness of the working blade 22 can be reduced according to the strength of the material, the edge portion 13 being formed by arc lines extending outward from the top to the bottom edge, the lower part of the edge portion 13 also having a sharp working angle. It is formed with an external extension surface 12 having a diameter, thereby reducing the contact area between the hairs 2, thereby reducing the resistance to cutting.

10 and 11 show cross-sectional views of a tooth, which is a third embodiment of the present invention, respectively, and a schematic view of the hair cutting of FIG. When the thickness of the blade becomes small, the edge portion 13 extends outward from the top end to the bottom end in a straight line, so that the outer extension surface 12 at the lower end forms a sharp cutting angle so that the hair 2 can be cut quickly. do.

12 and 13 show cross-sectional views of a tooth, which is a fourth embodiment of the present invention, respectively, and a schematic view of the hair cutting in FIG. The top of the edge portion 13 is a straight line extending from the top to the bottom, and the externally extending surface 12 at the bottom portion reduces the contact area between the hairs 2 and from the top to the bottom to provide a less resistant cutting angle. It is formed by a straight line extending.

14 and 15 show cross-sectional views of a tooth, which is a fifth embodiment of the present invention, respectively, and a schematic view of the hair cutting in FIG. The upper portion of the edge portion 13 is in the shape of an arc line, and the outer extension surface 12 at the lower portion is a straight line extending outward.

Thus, the sharp working angle formed by the outer extension surface 12 extending outward from the lower end of the edge portion 13 greatly reduces the resistance to cutting, so that the hair 2 can be cut quickly and smoothly. The object of the present invention to provide a structure is achieved.

The embodiments described herein merely illustrate the principles of the present invention and a wide variety of modifications can be made by those skilled in the art without departing from the scope of the present invention as set forth in the claims below.

1 shows a perspective view of a working blade of the prior art.

2 shows a cross-sectional view of a working blade of the prior art in cutting hair.

Figure 3 shows a perspective view of the structure of the present invention.

4 shows a perspective view of a first embodiment of the present invention.

Figure 5 shows an enlarged view of a single tooth of the present invention.

FIG. 6 shows a sectional view along the line A-A 'of FIG.

FIG. 7 shows a schematic view of the haircutting in FIG. 6.

Figure 8 shows a cross-sectional view of a tooth which is a second embodiment of the present invention.

9 shows a schematic view of the haircutting in FIG. 8.

Fig. 10 shows a sectional view of a tooth which is a third embodiment of the present invention.

FIG. 11 shows a schematic view of the haircutting in FIG. 10.

Figure 12 shows a cross-sectional view of a tooth which is a fourth embodiment of the present invention.

FIG. 13 shows a schematic view of the haircutting in FIG. 12.

Figure 14 shows a cross-sectional view of a tooth which is a fifth embodiment of the present invention.

FIG. 15 shows a schematic view of the haircutting in FIG. 14.

※ Explanation of code for main part of drawing

1: tooth 2: hair

11: Motor 12: Externally extended surface 13: Edge portion 14: Continuous groove

22: working blade

Claims (12)

In the blade structure of the electric hair trimmer, It includes a blade set installed in the front end of the body, the blade set is composed of a vibration sheet and a fixed blade connected to the working blade, the fixed blade and the front end of the working blade has a plurality of teeth (tooth), The vibrating sheet is driven by a motor inside the body and allows the working blade to overlap with the fixed blade to form an alternating movement, and the lower part of the edge of the working blade extends outward to form an external extension surface with a sharp working angle. Blade structure of electric hair trimmer, characterized in that. The blade structure of an electric hair trimmer according to claim 1, wherein the edge portion of the working blade includes an arc-shaped continuous groove. The blade structure of an electric hair trimmer according to claim 1, wherein an upper portion of a cross section of the edge portion of the working blade is linear, and a lower portion extends outwardly from the top to the bottom in an arc line shape. 3. The blade structure of the electric hair trimmer according to claim 2, wherein an upper portion of the cross section of the edge portion of the working blade is linear, and the lower portion extends outward from the uppermost to the lowermost in an arc line shape. The blade structure of an electric hair trimmer according to claim 1, wherein the edge portion of the working blade extends outwardly from the top to the bottom in an arc shape. 3. The blade structure of an electric hair trimmer according to claim 2, wherein the edge portion of the working blade extends outwardly from the top to the bottom in an arc line shape. 2. The blade structure of an electric hair trimmer according to claim 1, wherein the edge portion of the working blade extends outward from the top end to the bottom end in a straight line shape. 3. The blade structure of an electric hair trimmer according to claim 2, wherein the edge portion of the working blade extends outward from the top end to the bottom end in a straight line shape. The blade structure of an electric hair trimmer according to claim 1, wherein an upper portion of the cross section of the edge portion of the working blade is linear, and the lower portion extends outward from the uppermost to the lowermost in a linear shape. 3. The blade structure of an electric hair trimmer according to claim 2, wherein an upper portion of the cross section of the edge portion of the working blade is linear, and the lower portion extends outward from the uppermost to the lowermost in a linear shape. The blade structure of an electric hair trimmer according to claim 1, wherein an upper portion of the cross section of the edge portion of the working blade has an arc shape, and a lower portion thereof extends outward from the top to the bottom in a straight line shape. 3. The blade structure of an electric hair trimmer according to claim 2, wherein an upper portion of the cross section of the edge portion of the working blade has an arc line shape, and a lower portion thereof extends outward from the top to the bottom end in a straight line shape.

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