Nose hair trimmer

Abstract

The present invention relates to a nasal hair trimmer which significantly improves cutting performance by optimally designing the structure of the cutting portion of the nasal hair trimmer.

Description

Technical Field

[0001] This invention relates to a nose hair trimmer, specifically a nose hair trimmer that significantly improves cutting performance by optimizing the structure of the cutting portion in the technology described in Korean Patent No. 1795626 held by the applicant. Background Technology

[0002] If you don't get your nose hair treated at a beauty salon, you'll usually trim it yourself as it grows over time. Most of the time, small scissors are used, which can cause considerable discomfort and is also a significant risk of bacterial infection due to cuts inside the nostrils, so you need to be very careful.

[0003] Furthermore, when using a device that uses a motor to rotate the cutting blade and thereby cut nose hairs, the device becomes very cumbersome to use due to frequent malfunctions and battery replacement issues. Moreover, because nose hairs grow in an irregular direction, it is difficult to cut them effectively.

[0004] Furthermore, the unique vibrations generated in the motor that drives the cutting edge to rotate can cause coughing and runny nose, resulting in discomfort for the user. In addition, byproducts can flow into the nose hair trimming equipment during this process.

[0005] As a result, not only can the nose hairs not be properly trimmed, but if they are not cleaned regularly, they will also develop an odor and become a breeding ground for bacteria, leading to unsanitary conditions.

[0006] The technology disclosed in Korean Utility Model Publication No. 1989-0004257 related to such a nose hair trimmer involves inserting a fixed cylinder and a rotating cylinder inside a support cylinder and forming serrated blades on each, and attaching a handle to the bottom of the rotating cylinder. However, this nose hair trimmer has the following drawback: when the nose hair is located in the hollow part of the rotating cylinder, it is impossible to trim the nose hair.

[0007] Furthermore, the technology disclosed in Korean Patent Publication No. 2002-0093661 is designed to cut nose hairs by rotating the inner blade inside the outer blade, but it requires the user's thumb and forefinger to rotate the rotation axis of the inner blade and the remaining three fingers to fix or control the rear of the body, making it very inconvenient to use. In addition, Korean Patent Publication No. 2018-0106655 discloses a structure that uses the power of a spring to provide rotational force to rotate the cutting blade, but it is difficult to apply in real life.

[0008] Existing technical documents

[0009] Patent documents

[0010] Patent Document 0001: Korean Utility Model Publication No. 1989-0004257 (published April 17, 1989) – “Nose Hair Trimmer”

[0011] Patent Document 0002: Korean Patent Publication No. 2002-0093661 (published December 16, 2002) — "Manual Rotary Nose Hair Trimmer"

[0012] Patent Document 0003: Korean Patent Publication No. 2018-0106655 (published October 1, 2018) — "Nose Hair Trimmer"

[0013] Patent Document 0004: Korean Patent No. 1795626 (granted on November 2, 2017) – “Nose Hair Trimmer” Summary of the Invention

[0014] The present invention is intended to solve the above-mentioned problems. The purpose of the present invention is to provide a nose hair trimmer that not only optimizes the structure of the cutting part formed around the upper end of the fixed outer cylinder and the rotating inner cylinder, but also installs an auxiliary cover with multiple functions on the handle part forming the body, which significantly improves the performance of the nose hair trimmer compared with the conventional nose hair trimmer.

[0015] To achieve the above objectives, the nose hair trimmer of the present invention has the following structure: a rotating inner cylinder forming an inner cutting section is inserted into the interior of a fixed outer cylinder forming an outer cutting section, thereby arranging the cutting sections in a mutually corresponding manner. The outer cutting section is formed around the upper end of the fixed outer cylinder by a plurality of first cutting edges and a first slit, and the inner cutting section is formed around the upper end of the rotating inner cylinder by a plurality of second cutting edges and a second slit. With the first cutting edges and the first slit of the outer cutting section aligned with the second cutting edges and the second slit of the inner cutting section, the nose hair is cut by the first cutting edges and the second cutting edges through relative rotation. A first arc-shaped section is formed at the upper front end of the outer cutting section formed on the fixed outer cylinder. The first arc-shaped section is more than... The inner cutting section formed by the rotating inner cylinder is formed with its upper front end higher than a specified distance. The second cutting edge and the second slit of the inner cutting section are arranged in opposite positions. The inner inclined surface of the second cutting edge is connected to the protrusion formed from the center of the bottom surface. The lower inclined surface of the first slit of the outer cutting section is positioned lower than the protrusion of the inner cutting section. The nose hair is guided towards the protrusion through the second slit, thereby cutting the nose hair by the first and second cutting edges. The bolts used to fasten the outer cylinder and the rotating inner cylinder are embedded in a manner that does not protrude from the circumferential surface of the fixed outer cylinder and are locked in the annular groove formed in the middle part of the rotating inner cylinder. At the lower end of the handle, an auxiliary cover with a cleaning brush and a screwdriver is provided by threaded connection.

[0016] Furthermore, the first slit of the fixed outer cylinder is formed in 12 parts, and the second slit of the rotating inner cylinder is formed in 9 parts. The upper front end and the inner inclined surface of the inner cutting part constituting the rotating inner cylinder are connected to the second arc-shaped part.

[0017] Furthermore, a cylindrical body with a mounting portion embedded in the cleaning brush is snapped into and fixed to the auxiliary cover. A screwdriver is snapped into and fixed to the through hole formed in the center of the bottom surface of the auxiliary cover. A permanent magnet is embedded in the bottom surface of the cylindrical body.

[0018] The present invention forms a first arc-shaped part at the upper front end of the fixed outer cylinder constituting the main body. Compared with the existing structure that forms a sharp corner, it is easier to allow the nose hair to enter the groove at once, and will not cause annoyance to the user.

[0019] Furthermore, the upper front end of the fixed outer cylinder is positioned at a predetermined distance higher than the upper front end of the inner cutting section formed by the rotating inner cylinder. Therefore, the nose hair can be guided downwards by the curved surface while being first caught in the groove of the fixed outer cylinder. Since the lower end area of ​​the inclined surface is wider, cutting can be performed smoothly.

[0020] Meanwhile, the bolts used to fasten the outer cylinder and the rotating inner cylinder do not protrude from the circumference of the outer cylinder, so they are aesthetically pleasing and will not cause inconvenience to use. An auxiliary cover with a cleaning brush and screwdriver is installed at the lower end of the handle of the nose hair trimmer, which can not only clean the cutting part, but also conveniently disassemble the rotating inner cylinder and the fixed outer cylinder as needed. Attached Figure Description

[0021] Figure 1 This is a perspective view of a nose hair trimmer disclosed in Korean Patent No. 1795626.

[0022] Figure 2 for Figure 1 A cross-sectional view of the CC line.

[0023] Figure 3 A perspective view showing the inner and outer cut portions.

[0024] Figure 4 for Figure 3 A sectional view along line AA.

[0025] Figure 5 This is a cross-sectional view showing the cut portion of the rotating inner cylinder.

[0026] Figure 6 A cross-sectional view is provided to briefly illustrate an example of nose hairs being cut.

[0027] Figure 7 This is a perspective view showing only the cut portion of the modified fixed outer cylinder and rotating inner cylinder.

[0028] Figure 8 for Figure 7 A 3D view of the assembled state.

[0029] Figure 9 Parts (a) and (b) are cross-sectional views of the cut portions of the fixed outer cylinder and the rotating inner cylinder.

[0030] Figure 10 This is a cross-sectional view showing the assembled state of the fixed outer cylinder and the rotating inner cylinder.

[0031] Figure 11 A cross-sectional view of the cut section is shown in magnification.

[0032] Figure 12 A three-dimensional view of the improved nose hair trimmer.

[0033] Figure 13 for Figure 12 An exploded 3D diagram.

[0034] Figure 14 for Figure 12 Cross-sectional structural diagram.

[0035] Figure 15 Parts (a) and (b) are respectively an exploded front view and an assembled sectional view showing the structure of the auxiliary cover.

[0036] Figure 16 A cross-sectional structural diagram illustrating an example of the use of the auxiliary cover.

[0037] Explanation of reference numerals in the attached figures

[0038] 1: Fixed outer cylinder 2: Rotating inner cylinder

[0039] 10: Outer cutting section; 20: Inner cutting section

[0040] 25: Handle 30: Auxiliary cover

[0041] 31: Cleaning brush 32: Screwdriver

[0042] 33: Insertion hole; 34: Cylindrical body

[0043] 35: Mounting part; 36: Through hole

[0044] 110: First cutting edge; 120: First slit

[0045] 121: Lower inclined surface; 123: First arc-shaped part

[0046] 210: Second cutting edge; 220: Second slit

[0047] 221: Lower inclined surface; 223: Inner inclined surface

[0048] 224: Protrusion 225: Second arc-shaped part

[0049] 226: Bolt Detailed Implementation

[0050] The preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. The specific structures and functions described herein represent one example and are not intended to limit the scope to the embodiments described herein.

[0051] First, relevant technologies disclosed in Korean Patent No. 1795626, which the applicant has previously developed and which has received technical recognition, are extracted and explained as preferred examples for the application of this invention. After deriving the problems therein, the structure and effects of this invention will be explained in the following content.

[0052] like Figure 1 and Figure 2 As shown, the vertical nose hair trimmer has the following structure: a rotating inner cylinder 2 forming an inner cutting section 20 is inserted into a fixed outer cylinder 1 forming an outer cutting section 10; the lower end of the fixed outer cylinder 1 is mounted on the upper periphery 252 of a handle section 25 integrally formed at the lower end of the rotating inner cylinder 2; and the front end of a bolt 11' fastened to the fixed outer cylinder 1 is locked into an annular groove 21' of the rotating inner cylinder 2.

[0053] Therefore, if the user holds the fixed outer cylinder 1 with one hand and rotates the handle 25 with the other hand, the nasal hair will be cut by the outer cutting part 10 of the fixed outer cylinder 1 and the inner cutting part 20 of the rotating inner cylinder 2 as the inner cylinder 2 rotates relative to the fixed outer cylinder 1.

[0054] like Figures 3 to 6 As shown, the rotating inner cylinder 2, which forms the inner cutting portion 20, is inserted into the fixed outer cylinder 1, which forms the outer cutting portion 10, such that the inner cutting portion 20 of the rotating inner cylinder 2 corresponds to the outer cutting portion 10 of the fixed outer cylinder 1.

[0055] The aforementioned outer cutting portion 10 is composed of a plurality of first cutting edges 110 and first slits 120, which are alternately formed around the upper end of the fixed outer cylinder 1.

[0056] The aforementioned inner cutting section 20 is composed of a plurality of second cutting edges 210 and second slits 220, which are alternately formed around the upper end of the rotating inner cylinder 2 in which the groove is formed.

[0057] Furthermore, with the first cutting edge 110 of the outer cutting portion 10 and the second cutting edge 210 of the inner cutting portion 20 aligned, and the first slit 120 of the outer cutting portion 10 aligned with the second slit 220 of the inner cutting portion 20, as the rotating inner cylinder 2 rotates relative to the fixed outer cylinder 1, the nose hairs are cut by the first cutting edge 110 and the second cutting edge 210.

[0058] The second cutting edge 210 and the second slit 220 are arranged facing each other. The inner guide portion 211 of the second cutting edge 210 is connected to the lower inclined surface 222 of the second slit 220 through the center O1 of the groove. The upper end of the lower inclined surface 122 of the first slit 120 is arranged at a lower position than the lower end of the lower inclined surface 222 of the second slit 220.

[0059] The aforementioned inner guide portion 211 starts from the inner side of the upper end of the aforementioned second cutting edge 210 and is composed of a steep slope portion 212 and a gentle slope portion 213 that bends from the lower end of the steep slope portion 212 and extends to the center O1 of the groove. The aforementioned outer cutting portion 10 and inner cutting portion 20 form the first cutting edge 110 and the second cutting edge 210 in a sawtooth shape.

[0060] Therefore, the width of the upper end (front end) of the nose hair that initially enters the first slit 120 between the first cutting edges 110 and the second slit 220 between the second cutting edges 210 is greater than the width of the lower end, thereby guiding the nose hair into the first slit 120 and the second slit 220.

[0061] That is, such as Figure 6 As shown, in the inner cutting section 20 of the rotating inner cylinder 2, an inclined section is formed on the inner side of a plurality of second cutting edges 210 around the groove. When the nose hair 100 enters the groove, it is bent at the center O1 of the groove and then guided to the lower inclined surface 222 of the second slit 220.

[0062] Furthermore, the nose hairs 100 that have entered the groove are guided to the lower inclined surface 222 of the first slit 120 through the lower inclined surface 222 of the second slit 220. When the rotating inner cylinder 2 rotates relative to the fixed outer cylinder 1, the nose hairs 100 are cut by the first cutting edge 110 and the second cutting edge 210.

[0063] However, in actual use of the nose hair trimmer described above, it often fails to trim nose hairs well.

[0064] That is, since the cutting section formed at the upper front end of the fixed outer cylinder and the rotating inner cylinder is located at the same position, the nose hair cannot enter the groove of the rotating inner cylinder well, so it is difficult to cut. The front end of the fixed outer cylinder narrows the lower end of the inclined surface with a sharp angle, so not only can the nose hair not enter the groove in one go, but it also causes annoyance to the user.

[0065] Furthermore, during the process of guiding the nasal hairs that have entered the groove of the rotating inner cylinder through the lower inclined surface of the slit to the outer cutting part of the fixed outer cylinder, it is difficult to guide the nasal hairs because they are gathered in the center of the rotating inner cylinder, and there may be cases where the nasal hairs cannot be cut due to the deviation between them and the fixed outer cylinder.

[0066] Moreover, since the fixed outer cylinder and the rotating inner cylinder are connected or disassembled by protruding bolts, it not only affects the appearance but also causes inconvenience during use. If cleaning is required after use, the bolts must be loosened to completely disassemble the fixed outer cylinder, which is very inconvenient.

[0067] Therefore, after considering the above-mentioned problems, the inventors developed a novel nose hair trimmer through extensive research and experimentation.

[0068] Right now, Figures 7 to 11 The structure is an optimized improvement of the ordinary structure of the cutting parts 10 and 20 formed in the fixed outer cylinder 1 and the rotating inner cylinder 2. The same reference numerals are given to the parts that are the same as those described above, and the specific description of them is omitted.

[0069] The outer cutting portion 10 formed around the upper end of the fixed outer cylinder 1 is composed of a plurality of first cutting edges 110 and a first slit 120, and the inner cutting portion 20 formed around the upper end of the rotating inner cylinder 2 is composed of a plurality of second cutting edges 210 and a second slit 220.

[0070] Accordingly, with the first cutting edge 110 and the first slit 120 of the outer cutting portion 10 aligned with the second cutting edge 210 and the second slit 220 of the inner cutting portion 20, the nose hairs are cut by the first cutting edge 110 and the second cutting edge 210 through relative rotation.

[0071] The first cutting edge 110 and the first slit 120 of the outer cutting portion 10 are arranged facing each other, and a lower inclined surface 121 connected to the first slit 120 is formed. Similarly, the second cutting edge 210 and the second slit 220 of the inner cutting portion 20 are arranged facing each other, and a lower inclined surface 221 connected to the second slit 220 is formed.

[0072] The inner inclined surface 223 of the second cutting edge 210 is connected to the protrusion 224 formed at the bottom.

[0073] Furthermore, a first arc-shaped portion 123 is formed at the upper front end of the outer cutting portion 10 formed on the aforementioned fixed outer cylinder 1. Therefore, compared to a structure with sharp angles, it is easier for nose hairs to enter the groove in one go, and it will not cause annoyance to the user.

[0074] Furthermore, the upper front end of the fixed outer cylinder 1 is formed such that it is higher than the upper front end of the inner cut portion 20 formed in the rotating inner cylinder 2 by a predetermined distance S. Preferably, the distance S can be 0.35mm to 0.45mm.

[0075] Therefore, nose hairs can be easily cut after being left at a length that reaches the aforementioned spacing S from the skin, preventing the previous phenomenon where the cutting parts 10 and 20 formed on the upper front end of the fixed outer cylinder 1 and the rotating inner cylinder 2 were positioned in the same location, resulting in cutting too close to the skin.

[0076] The upper front end and the inner inclined surface 223 of the inner cutting portion 20 constituting the above-mentioned rotating inner cylinder 2 are connected to the second arc-shaped portion 225. The lower inclined surface 121 formed by the first slit 120 of the outer cutting portion 10 and the lower inclined surface 221 formed by the second slit 220 of the inner cutting portion 20 are arranged at a position lower than the protrusion 224 of the inner cutting portion 20.

[0077] Thus, as the nasal hairs are guided toward the protrusion 224 through the second slit 220, they are cut more precisely by the first cutting edge 110 and the second cutting edge 210, just like cutting with scissors.

[0078] Although the protrusion 224 formed at the bottom of the rotating inner cylinder 2 is shown in the figure as a mountain peak, it can also be formed in a concave shape.

[0079] Furthermore, since a gap S is formed between the upper front end of the fixed outer cylinder 1 and the upper front end of the rotating outer cylinder 2, the nose hair will first get stuck in the groove of the fixed outer cylinder 1 and move downwards. Therefore, it can be cut more smoothly than the existing structure when the rotating inner cylinder 2 rotates.

[0080] In this case, most preferably, the first slit 120 of the fixed outer cylinder 1 is limited to 12, and the second slit 220 of the rotating inner cylinder 2 is limited to 9, thereby ensuring the best cutting performance for nose hairs.

[0081] on the other hand, Figures 12 to 16 For the improved handle structure of the nose hair trimmer, the same reference numerals are used for the parts that are the same as those described above, and their specific descriptions are omitted.

[0082] First, the bolts 226 used to fasten the fixed outer cylinder 1 and the rotating inner cylinder 2 that constitute the nose hair trimmer do not protrude from the circumferential surface of the fixed outer cylinder 1. At the same time, they are locked in the annular groove 21' formed in the middle part of the rotating inner cylinder 2, which not only does not affect the appearance, but also does not cause inconvenience to the user during use.

[0083] Furthermore, an auxiliary cover 30 is provided at the lower end of the handle 25 in a detachable manner by means of a threaded connection. The auxiliary cover 30 has a cleaning brush 31 and a screwdriver 32.

[0084] That is, an insertion hole 33 is formed in the auxiliary cover 30, into which the mounting part 35 formed at the lower end of the cylindrical body 34 in which the cleaning brush 31 is embedded can be inserted. A screwdriver 32 is formed in the center of the bottom surface, and the screw 226 fastened to the outer circumference of the outer cylinder 1 can be rotated to open and close the device.

[0085] Therefore, when you want to reassemble the fixed outer cylinder 1 and the rotating inner cylinder 2 after they have been completely separated and cleaned, you can use the auxiliary cover 30 for convenient use.

[0086] Furthermore, by embedding a permanent magnet 40 in the bottom surface of the cylindrical body 34, the small bolt 226 is kept attached to the auxiliary cover 30 under the action of magnetic force, thereby solving the problem of the bolt 226 falling off.

[0087] As for the screwdriver 32 mentioned above, although it can be formed by machining a groove on the bottom surface of the auxiliary cover 30, it can also be formed by pressing a separately manufactured screwdriver 32 into the auxiliary cover 30 after forming the through hole 36.

[0088] As described above, the nose hair trimmer according to the present invention, with the formation of a first arc-shaped portion at the upper front end of the fixed outer cylinder constituting the body, facilitates the nose hair to enter the groove in one go, rather than the existing structure with sharp corners, thus avoiding annoyance to the user.

[0089] Furthermore, the upper front end of the fixed outer cylinder is positioned at a predetermined distance higher than the upper front end of the inner cutting section formed by the rotating inner cylinder. Therefore, the nose hair can be guided downwards by the curved surface while being first caught in the groove of the fixed outer cylinder. Since the lower end area of ​​the inclined surface is wider, cutting can be performed smoothly.

[0090] Meanwhile, the bolts used to fasten the outer cylinder and the rotating inner cylinder do not protrude from the circumference of the outer cylinder, so they are aesthetically pleasing and will not cause inconvenience to use. An auxiliary cover with a cleaning brush and screwdriver is installed at the lower end of the handle of the nose hair trimmer, which can not only clean the cutting part, but also conveniently disassemble the rotating inner cylinder and the fixed outer cylinder as needed.

[0091] The present invention will achieve its objectives through the technical structure described above. Although it has been described with reference to specific embodiments and accompanying drawings, it is not limited thereto. Undoubtedly, those skilled in the art to which this invention pertains can make various modifications and variations within the same scope of the technical concept and the appended claims.

Claims

1. A nose hair trimmer, wherein a rotating inner cylinder (2) forming an inner cutting section (20) is inserted into the interior of a fixed outer cylinder (1) forming an outer cutting section (10), and the cutting sections (10, 20) are arranged in a corresponding manner. The outer cutting section (10) is formed around the upper end of the fixed outer cylinder (1) by a plurality of first cutting edges (110) and a first slit (120), and the inner cutting section (20) is formed around the upper end of the rotating inner cylinder (2) by a plurality of second cutting edges (210) and a second slit (220). When the first cutting edges (110) and the first slit (120) of the outer cutting section (10) are aligned with the second cutting edges (210) and the second slit (220) of the inner cutting section (20), nose hairs are cut by the first cutting edges (110) and the second cutting edges (210) through relative rotation. The nose hair trimmer is characterized in that... A first arc-shaped portion (123) is formed at the upper front end of the outer cut portion (10) formed on the fixed outer cylinder (1). The first arc-shaped portion (123) is formed such that it is higher than the upper front end of the inner cut portion (20) formed on the rotating inner cylinder (2) by a predetermined distance (S). The second cutting edge (210) of the inner cutting portion (20) and the second slit (220) are arranged facing each other, and the inner inclined surface (223) of the second cutting edge (210) is connected to the protrusion (224) formed from the center of the bottom surface. The lower inclined surface (122) of the first slit (120) of the outer cutting portion (10) is positioned lower than the protrusion (224) of the inner cutting portion (20), and the nasal hair is guided towards the protrusion (224) through the second slit (220), thereby cutting the nasal hair by the first cutting edge (110) and the second cutting edge (210). The bolts (226) used to fasten the outer cylinder (1) and the rotating inner cylinder (2) are embedded in a manner that does not protrude from the circumferential surface of the outer cylinder (1) and are locked in the annular groove (21') formed in the middle part of the rotating inner cylinder (2). At the lower end of the handle, an auxiliary cover (30) containing a cleaning brush (31) and a screwdriver (32) is installed by a threaded connection. A cylindrical body (34) with a mounting portion (35) embedded in the cleaning brush (31) is snapped into and fixed to the auxiliary cover (30). A screwdriver (32) is snapped into and fixed to the through hole (36) formed in the center of the bottom surface of the auxiliary cover (30). A permanent magnet (40) is embedded in the bottom surface of the cylindrical body (34).

2. The nose hair trimmer according to claim 1, characterized in that, The first slit (120) of the fixed outer cylinder (1) is formed in 12 ways, and the second slit (220) of the rotating inner cylinder (2) is formed in 9 ways, which constitute the upper front end and inner inclined surface (223) of the inner cutting part (20) of the rotating inner cylinder (2) connected to the second arc-shaped part (225).

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