TWM499996U - Knife structure of hair cutter - Google Patents

Description

Hair clipper tool structure

The present invention relates to a cutter structure for a hair clipper, and more particularly to a cutter structure capable of improving shear efficiency and making the trimmed hair flat.

The blade of the hair clipper is usually composed of a stationary fixed blade and a movable blade superposed on the fixed blade, and the movable blade moves back and forth to be staggered with the fixed blade to cut the hair.

In order to achieve good shearing effect of the hair clipper blade and maintain durable and stable performance, the current technique is to use a thick metal plate material, and then cut the tooth shape with a grinding wheel to make the tooth shape have an acute angle and maintain the thickness and For the structural strength, please refer to FIG. 1A, which is a schematic view of the cutting of the blade 7 to form the blade 111a, and the upper and lower views of the cutting edge portion 111 produced after the cutting process are as shown in FIG. 1B. Figure 1 and Figure 1C; and the above-mentioned complete tool for cutting the thick metal plate material with the grinding wheel 7 is shown in Figure 2A, but for the thick metal plate material, the grinding wheel will have the following Disadvantages occur: (a) As shown in Fig. 2A, the tooth 11 and the tooth 11 have a V-shaped tooth groove 12, so as shown in Figs. 2B and 3A, when the movable blade 1 and the fixed blade 2 are When stacked on a hair clipper 3, it can be found in FIG. 3A that since the bottom end of the V-shaped slot 12 is narrowed, the hair entering the bottom of the V-shaped slot 12 at the time of cutting is 5 Will be pushed back because of the squeeze, so trim The hair 6 may have a lengthy phenomenon; (b) In addition, as shown in Fig. 3B, since the bottom end of the V-shaped slot 12 is narrowed, it enters the bottom of the V-shaped slot 12 as described above. The hair 5 will be squeezed, so the hair bundle will be tightly concentrated, and when shearing, the tightly concentrated hair bundle will make the shearing more laborious, so there will be a reduction in shear efficiency; (c) Due to the large friction area at the bottom end, the blade is easy to heat up and burn when used; (d) The large friction area causes high power consumption; (e) The above processing method will increase the processing amount of the grinding wheel, making the wheel life The problem of lowering and causing an increase in processing costs occurs.

It can be seen from the above that such a tool for cutting a thick metal plate material by a grinding wheel has the above disadvantages. In order to overcome the above problems, the present invention performs a stamping process on a thick metal plate material before cutting. In order to bend the bottom end of any two teeth to form a slot, in addition to the shearing function, the slot can make the trimmed hair more flat, improve the cutting efficiency, and reduce the blade. This should be a better solution for reducing the area of the wiper, reducing the heat of the blade, reducing the power consumption and reducing the amount of grinding wheel processing.

This creation is about a tool structure of a hair clipper, which is capable of stamping and processing a thick metal plate material before cutting, which will reduce the man-hour and workload of the grinding wheel and the consumption of the grinding wheel tool. In addition to making the trimmed hair smoother, the resulting cutter can improve the cutting efficiency and reduce the problem of blade scalding.

The above-mentioned hair clipper cutter has a plurality of cutter units, and both sides of the front end of any one of the cutter unit are a blade portion, and the bottom end of either side of the cutter unit is adjacent to the adjacent one. The bottom end of the cutter unit is curved inward to form a slot.

More specifically, the blade portion has an acute angle.

More specifically, the slot is more tapered such that the bottom of the slot has an acute angle of shear function.

More specifically, the slot is a circular slot.

Other technical contents, features, and effects of the present invention will be apparent from the following detailed description of the preferred embodiments.

Please refer to Figures 4, 5 and 6 for the schematic diagram of the unfinished blade structure of the tool structure of the hair clipper, the schematic diagram of the blade structure of the partial processing and the schematic structure of the processed blade. In this creation, the movable blade is used as the movable blade. For example, the structure of the tool disclosed in the present application can also be used for fixing the blade. In this embodiment, a movable blade having a plurality of circular through holes 411 is first punched by a punching device (not shown). 4, wherein the circular through hole 411 is located on the flat surface 41 at the front end of the movable blade 4, and the movable blade 4 formed by punching at this time is a half processing blade.

It can be seen from Fig. 5 and Fig. 6 that a grinding wheel device (not shown) is then applied to the front end portion 42 of the movable blade 4 behind the semi-processed blade toward the circular through hole 411. Cutting to form a plurality of aligned cutter units 44, the blade portion 441 on the side of the cutter unit 44 is formed by cutting the grinding wheel device, and since the grinding wheel device is cut toward the circular through hole 411, A slot 45 is formed between any two corresponding blade portions 441.

In addition, since the movable blade 4 of the semi-processing blade has a front end portion 42 at the front end and a flat surface 43 at the front end portion, the cutter unit 44 after cutting through the grinding wheel device during reworking is The top surface of the front end is also a slope 442, and the bottom surface of the front end is also a plane 443. Therefore, when the cutting is completed, the blade portion 441 naturally has an acute angle 4411. Therefore, the process of the creation only needs to use the stamping and the grinding wheel to cut two. In addition, the slot 45 also has a taper (not shown), whether it is the acute angle 4411 of the blade portion 441 or the taper of the slot 45, when the movable blade 4 and a fixed blade are used. The clip is used to be able to cut the hair, and the taper of the slot 45 will enable the bottom of the slot 45 to be an acute angle with a shearing function.

The movable blade manufacturing method of the present invention, as shown in Fig. 7, is organized as follows: (1) First, a semi-processing blade 801 having a plurality of circular through holes is formed by a punching device; and (2) Cutting at a front end of the circular penetration hole of the semi-processing blade with a grinding wheel device toward the circular penetration hole to form two corresponding blade portions, and at any two corresponding blade portions The inner arc is formed with a slot 802.

It can be seen from the above process that it is obviously different from the traditional V-shaped cogging process. In the present invention, the slot 45 is pre-disposed on the bottom of the cutter unit 44, so that the cutting forming process required for forming the cutter unit 44 is produced during processing. The path is shortened, which will reduce the amount of machining for cutting and increase the machining efficiency and reduce the consumption of the grinding wheel tool.

As shown in Figs. 8A, 8B, 9A and 9B, when the movable blade 4 and the fixed blade 2 are stacked and mounted on a hair clipper 3, as shown in the figure, when the hair is cut, the following characteristics are obtained: (1) Since the slot 45 can effectively reduce the mutual squeezing state of the stuffed hair 5, the hair 5 entering the gullet at the time of hair cutting is not pushed back by the squeezing; therefore, the trimmed hair 6 is relatively flat. There will be no unevenness. (2) The hair 5 entering the slot 45 can be maintained in the original loose state, and the tight hair bundle is narrowed compared to the bottom end of the conventional V-shaped groove, so that the shearing is labor-saving, so that the shearing efficiency can be improved. (3) Comparing Fig. 8B of the present invention with Fig. 2C of the conventional technique, it is known that the contact surface 444 of the present invention overlaps with the fixed blade 2, and the sawtooth tooth 11 and the fixed blade 2 of the prior art. In contrast to the overlapping contact faces 113, the conventionally shaped serrated teeth 11 are between the V-shaped slots 12, and the inventive tooth unit 44 has the slot 45 due to the slot 45. The bottom of the groove has an arc-shaped recess, so that compared with the conventional V-shaped slot 12, the slot 45 of the present invention can make the contact area of the blade smaller, so that the friction resistance can be effectively reduced and the power consumption can be reduced during operation; At the same time, the temperature generated by the friction is lowered, thereby reducing the problem of blade scalding.

The advantages of the tool structure of the hair clipper provided by this creation are compared with other conventional techniques. The advantages are as follows: 1. The creation is to press the thick metal sheet material and then cut it for the cutter unit. The bottom of the bottom is formed with a slot, so when the hair is trimmed, since the slot can effectively reduce the mutual squeeze state of the stuffed hair, the hair entering the tooth gap during the hair cutting is not pushed back by the pressing; The trimmed hair is flat and there will be no unevenness. In addition, since the hair entering the slot can maintain the original loose state, the tighter hair bundle is narrower than the bottom end of the conventional V-shaped cogging, and the shearing is labor-saving, so that the shearing efficiency can be improved. 2. The slot of the creation can make the contact area of the blade smaller, can effectively reduce the friction resistance and reduce the power consumption during operation; at the same time reduce the temperature generated by the friction, thereby reducing the problem of the blade being hot.

The present invention has been disclosed above in the above embodiments, but it is not intended to limit the present invention. Anyone skilled in the art having ordinary knowledge will understand the foregoing technical features and embodiments of the present invention without departing from the present invention. In the spirit and scope, the scope of patent protection of this creation shall be subject to the definition of the requirements attached to this manual.

1‧‧‧ movable blade
11‧‧‧ teeth
111‧‧‧ cutting edge
111a‧‧‧ Blade
112‧‧‧ hairdresser blade
113‧‧‧Contact surface
12‧‧‧V-shaped cogging
2‧‧‧Fixed blades
3‧‧‧ hair clipper
4‧‧‧ movable blade
41‧‧‧flat surface
411‧‧‧round through hole
42‧‧‧ front end
43‧‧‧ plane
44‧‧‧Knife unit
441‧‧‧Knife
4411‧‧‧ acute angle
442‧‧‧Bevel
443‧‧‧ plane
444‧‧‧Contact surface
45‧‧‧Slots
5‧‧‧ hair
6‧‧‧ Hair
7‧‧‧ grinding wheel

[Fig. 1A] Fig. 1 is a schematic view showing the cutting of a cutting edge using a grinding wheel by a conventional movable blade. [Fig. 1B] is a top view of the cutting edge portion of the conventional movable blade. [Fig. 1C] is a cross-sectional view taken along the line H-H in Fig. 1B. [Fig. 2A] is a schematic view showing the structure of a conventional movable blade. [Fig. 2B] is a schematic view showing a combination of a movable blade and a fixed blade. [Fig. 2C] is a schematic view of a contact surface of a conventional movable blade and a fixed blade. [Fig. 3A] is a schematic diagram of trimming hair of a conventional hair clipper. [Fig. 3B] is a schematic view showing the phenomenon of hair congestion in a V-shaped tooth groove of a conventional hair clipper. [Fig. 4] is a schematic view of the unfinished blade structure of the tool structure of the present hair clipper. [Fig. 5] is a schematic view of the blade structure of the partial processing of the tool structure of the present hair clipper. [Fig. 6] is a schematic view of the blade structure of the tool structure of the present hair clipper. [Fig. 7] is a flow chart showing the manufacturing method of the tool structure of the present hair clipper. [Fig. 8A] is a schematic diagram showing the combination of a movable blade and a fixed blade of the tool structure of the present hair clipper. [Fig. 8B] is a schematic view showing the contact surface of the movable blade and the fixed blade of the cutter structure of the present hair clipper. [Fig. 9A] is a schematic illustration of the trimming of the cutter structure of the present hair clipper. [Fig. 9B] is a schematic view showing the looseness of the hair in the slot of the cutter structure of the present hair clipper.

4‧‧‧ movable blade

44‧‧‧Knife unit

441‧‧‧Knife

4411‧‧‧ acute angle

442‧‧‧Bevel

443‧‧‧ plane

Claims (4)

The utility model relates to a cutter structure of a hair clipper, comprising: a plurality of cutter tooth units, wherein both sides of the front end of any one of the cutter tooth units are a blade portion, and the bottom end of either side of the cutter tooth unit and the adjacent knife A slot is formed in the inner end of the tooth unit to form a slot. The cutter structure of the hair clipper of claim 1, wherein the blade portion has an acute angle. The cutter structure of the hair clipper of claim 1, wherein the slot is more tapered such that the bottom of the slot has an acute angle of shearing function. The cutter structure of the hair clipper of claim 1, wherein the slot is a circular groove.