Nose hair cutter

A nose hair clipper including a stationary external cylindrical body, having an external cutting portion with a plurality of first cutting edges, a plurality of first slits, and a plurality of rounded portions; a rotatable internal cylindrical body, having an internal cutting portion with a plurality of second cutting edges and a plurality of second slits, a convex portion, and a circumferential concave groove, the rotatable internal cylindrical body being inserted into the stationary external cylindrical body, and the plurality of rounded portions of the external cutting portion extending upward to be higher than an upper end of the internal cutting portion by a to predetermined gap; a bolt, screwed into the circumferential concave groove; a handling body, combined with a lower end of the rotatable internal cylindrical body; and an auxiliary cap with a brush and a driver, connected to a lower end of the handling body.

CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority to Korean Patent Application No. 10-2020-026575, filed Mar. 3, 2020, the entire contents of which is incorporated herein for all purposes by this reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present disclosure relates to a nose hair clipper and, more particularly, to a nose hair clipper in which the structure of a cutting portion is optimally designed, considering the technology disclosed in Korean Patent No. 1795626 owned by the present applicant, thereby remarkably increasing the cutting performance of the nose hair clipper.

Description of the Related Art

People cut their nose hairs growing with time in a barber shop or a beauty parlor or by themselves. In most cases, nose hairs are cut with small scissors. The use of the scissors may cause discomfort to a user and may cause an injury to the user's nostrils. Some care should be exercised to prevent bacterial infections due to the injury.

In addition, a motor-driven device that rotates a cutting edge to cut nose hair has disadvantages of frequent malfunctioning and battery replacement. The nose hairs are difficult to efficiently cut with the motor-driven device because the nose hairs grow irregularly in different directions.

Moreover, typical vibrations that occur in a nose hair clipper's motor driving the cutting edge causes a cough and nasal discharge, thereby causing discomfort to the user. While the nose clipper operates, a foreign material is introduced into the nose hair clipper.

Therefore, when the nose hairs are not neatly cut, or when the nose hair clipper is not frequently cleaned, odor comes from the nose hair clipper and bacteria grow therein. The nose hair clipper has the disadvantage of being unhygienic.

In the technology disclosed in Korean Utility Model Application Publication No. 20-1989-0004257 directed to the nose hair clipper, a stationary cylindrical body and a rotating cylindrical body are inserted into a support cylindrical body, saw-toothed cutting edges of the stationary cylindrical body and the rotating cylindrical body are formed, and a handle is attached below the rotating cylindrical body. This disclosed technology has a disadvantage in that, in a case where nose hairs are introduced into the nose hair clipper or a hollow portion therein, the nose hairs are not cut.

In addition, in the technology disclosed in Korean Patent Application Publication No. 10-2002-0093661, an internal cutting edge is rotated inside an external cutting edge to cut nose hairs, and a rotation shaft of the internal cutting edge is rotated with a user's thumb and forefinger while a rear portion of a body of a nose hair clipper is held with the user's other three fingers. This disclosed technology has a disadvantage of being inconvenient to use. In the technology disclosed in Korean Patent Application Publication No. 10-2018-0106655, a cutting edge is rotated with a rotational force of a spring. This disclosed technology has a disadvantage of being difficult to apply in real life.

DOCUMENT OF RELATED ART

SUMMARY OF THE INVENTION

An objective of the present disclosure is to provide a nose hair clipper in which structures of external and internal cutting portions formed circumferentially on upper ends, respectively, of a stationary external cylindrical body and a rotatable internal cylindrical body are optimally designed and in which an auxiliary cap having various functions is provided on a handling body constituting a main body of the nose hair clipper. The nose hair clipper thus provides higher performance than that in the related art.

According to an aspect of the present disclosure, there is provided a nose hair clipper including a stationary external cylindrical body having an external cutting portion and a rotatable internal cylindrical body having an internal cutting portion, the external cutting portion being formed circumferentially on an upper end of the external cylindrical body and having a plurality of first cutting edges and a plurality of first slits, and the internal cutting portion being formed circumferentially on an upper end of the internal cylindrical body and having a plurality of second cutting edges and a plurality of second slits, wherein the internal cylindrical body is inserted into the external cylindrical body such that the external cutting portion and the internal cutting portion correspond to each other, and when the internal cylindrical body is rotated relative to the external cylindrical body in a state in which the first cutting edges and the first slits of the external cutting portion are aligned with the second cutting edges and the second slits of the internal cutting portion, respectively, nose hairs are cut by the first cutting edges and the second cutting edges, wherein the external cutting portion of the stationary external cylindrical body has a plurality of rounded portions on an upper leading end thereof, the plurality of rounded portions extending upward to be higher than an upper leading end of the internal cutting portion of the rotatable internal cylindrical body by a predetermined gap, the second cutting edges and the second slits of the internal cutting portion are arranged in such a manner as to face each other, and internal inclination surfaces of the second cutting edges are linearly connected to a surface of a convex portion formed upward from a bottom of the internal cutting portion, lower inclination surfaces of the plurality of first slits in the external cutting portion are arranged blow the convex portion of the internal cutting portion, so that nose hairs are introduced through the plurality of second slits, are guided toward the convex portion, and, when the rotatable internal cylindrical body is rotated, the nose hairs are cut by the plurality of first cutting edges and the plurality of the second cutting edges, a bolt is screwed through the stationary external cylindrical body into a circumferential concave groove of the rotatable internal cylindrical body to fasten the stationary external cylindrical body and the rotatable internal cylindrical body to each other, the bolt being buried in the stationary external cylindrical body without protruding from a circumferential surface thereof, and an auxiliary cap having a brush and a driver is connected by a screw engagement manner to a lower end of a handling body formed on a lower end of the rotatable internal cylindrical body.

In the nose hair clipper, the number of the plurality of first slits in the stationary external cylindrical body may be 12, and the number of the plurality of second slits in the rotatable internal cylindrical body may be 9, and the upper leading end and the internal inclination surfaces of the internal cutting portion constituting the rotatable internal cylindrical body may be linearly connected with a rounded portion interposed therebetween.

In the nose hair clipper, the brush may be integrally buried in the auxiliary cap, a cylindrical body on which an insertion portion is formed may be held by being inserted into the auxiliary cap, and the driver may be held by being inserted into a through-hole formed in a center portion of a bottom surface of the auxiliary cap.

In the nose hair clipper, a permanent magnet may be buried in a lower portion of the cylindrical body.

According to the present disclosure, the rounded portion is formed on the upper leading end of the stationary external cylindrical body constituting a main body of the nose hair clipper. Thus, the nose hairs are easier to introduce at one time into a groove than in the previously employed structure in which the upper end portion of the stationary external cylindrical body is angular. This does not repulse the user.

In addition, the upper leading end of the stationary external cylindrical body extends upward to be higher than the upper leading end of the internal cutting portion of the rotatable internal cylindrical body by the predetermined gap. Accordingly, the nose hairs are first blocked by an internal surface of a groove and thus go down. Subsequently, the nose hairs are introduced toward a curved portion. A lower end portion of the inclination surface is formed relatively widely, and thus the nose hairs are cut smoothly.

Moreover, the bolt fastening the stationary external cylindrical body and the rotatable internal cylindrical body to each other does not protrude from the circumferential surface of the stationary external cylindrical body. Thus, the appearance of the nose hair clipper is not spoiled, and, while the nose hair clipper is in use, the inconvenience is not caused to the user. The auxiliary cap including the brush and the driver is mounted on the lower end of the handling body of the nose hair clipper. Thus, the stationary external cylindrical body can be easily separated from the rotatable internal cylindrical body when the cutting portions need to be cleaned or whenever necessary for any other reason.

DETAILED DESCRIPTION OF THE INVENTION

A preferred embodiment of the present disclosure will be described in more detail below with reference to the accompanying drawings. Specific structures and functions of the embodiment are examples of structural features thereof. The present disclosure is not limited to the embodiment described in the present specification.

First, the preferred embodiment of the present disclosure will be described below in association with the technology disclosed in Korean Patent No. 1795626. Along with the problems with the disclosed technology, configurations and operational advantages of the present disclosure will be described.

As illustrated inFIGS. 1 and 2, in a nose hair clipper that is manufactured in the form of a cylinder, a rotatable internal cylindrical body2having an internal cutting portion20is inserted into a stationary external cylindrical body1having an external cutting portion10. A lower end of the stationary external cylindrical body1is fittingly nested on a circumferential portion252of an upper end of a handling body25integrally formed on a lower end of the rotatable internal cylindrical body2. A leading end portion of a bolt11′ is screwed through the stationary external cylindrical body1into a circumferential concave groove21′.

Therefore, when a user rotates the handling body25with his/her one hand while holding the stationary external cylindrical body1with his/her other hand, the rotatable internal cylindrical body2is rotated relatively to the stationary external cylindrical body1. As a result, nose hairs are cut by the external cutting portion10of the stationary external cylindrical body1and the internal cutting portion20of the rotatable internal cylindrical body2.

As illustrated inFIGS. 3 to 6, the rotatable internal cylindrical body2having the internal cutting portion20is inserted into the stationary external cylindrical body1having the external cutting portion10, and thus the internal cutting portion20of the rotatable internal cylindrical body2is arranged in a manner that corresponds to the external cutting portion10of the stationary external cylindrical body1.

The external cutting portion10is configured with a plurality of first cutting edges110and a plurality of first slits120. The plurality of first cutting edges110and the plurality of first slits120are formed circumferentially in an alternating manner on an upper end of the stationary external cylindrical body1.

The internal cutting portion20is configured with a plurality of second cutting edges210and a plurality of second slits220. The plurality of second cutting edges210and the plurality of second slits220are formed circumferentially in an alternating manner on an upper end of the rotatable internal cylindrical body2.

In addition, the rotatable internal cylindrical body2is rotated relatively to the stationary external cylindrical body1in a state where the first cutting edge110of the external cutting portion10and the second cutting edge210of the internal cutting portion20are positioned in such a manner as to horizontally overlap each other and where the first slit120of the external cutting portion10and the second list220of the internal cutting portion20are positioned in such a manner as to horizontally overlap each other. Thus, the nose hairs are cut by the plurality of first cutting edges110and the plurality of second cutting edges210.

At this point, the second cutting edge210and the second slit220are arranged in such a manner as to face each other. An internal guidance portion211of the second cutting edge210is connected to a lower inclination surface222of the second slit at an apex O1of an approximately inverted cone-shaped hole. An upper end of a lower inclination surface122of the first slit120is positioned below a lower end of a lower inclination surface222of the second slit220.

The internal guidance portion211includes a steep inclination portion212and a gentle inclination portion213. The steep inclination portion212is steeply inclined downward from an upper end of the second cutting edge210. The gentle inclination portion213is gently inclined downward from a lower end of the steep inclination portion212to the apex O1of the approximately inverted cone-shaped hole. The first cutting edge110of the external cutting portion10and the second cutting edge210of the internal cutting portion20are formed in a saw-toothed pattern.

Therefore, an upper end (leading end), through which the nose hairs start to be introduced, of the first slit120between the first cutting edges110are formed to have a greater width than a lower end thereof. Furthermore, an upper end (leading end), through which the nose hairs start to be introduced, of the second slit220between the second cutting edges210has a greater width than a lower end thereof. Thus, the nose hairs are guided toward the first slit120and the second slit220.

That is, as illustrated inFIG. 6, the plurality of second cutting edges210of the internal cutting portion20of the rotatable internal cylindrical body2are formed inward around the approximately inverted cone-shaped positioned inside the bowl-shaped hole. Thus, nose hairs100, after introduced into the approximately inverted cone-shaped hole, are bent at the apex O1of the approximately inverted cone-shaped hole and then are guided toward the lower inclination surface222of the second slit220.

Moreover, through the lower inclination surface222of the second slit220, the nose hairs100introduced into the approximately inverted cone-shaped hole are guided toward the lower inclination surface122of the first slit120. When the rotatable internal cylindrical body2is rotated relatively to the stationary external cylindrical body, the nose hairs100are cut by the first cutting edge110and the second cutting edge210.

However, in some cases, the nose hair clipper described above, when actually in use, frequently does not cut the nose hairs100.

That is, the nose hairs are difficult to introduce into the approximately inverted cone-shaped hole in the rotatable internal cylindrical body2because the external cutting portion10formed on the upper leading end of the stationary external cylindrical body1and the internal cutting portion20formed on the upper leading end of the rotatable internal cylindrical body2are arranged in the same position. Thus, the nose hairs100are difficult to cut. Moreover, an upper leading end portion of the stationary external cylindrical body is angular, and thus a lower end portion of the inclination surface is formed narrowly. Thus, the nose hairs100are not introduced at one time into the approximately inverted cone-shaped hole. This repulses the user.

In addition, while the nose hairs100introduced into the approximately inverted cone-shaped hole in the rotatable internal cylindrical body2are guided toward the external cutting portion10of the stationary external cylindrical body1through the lower inclination surface222of the second slit220, the nose hairs100are concentrated in the center portion of the rotatable internal cylindrical body2. Therefore, the nose hairs100are not easy to guide. In some cases, the nose hairs100are not cut due to a deviation from the stationary external cylindrical body1.

Moreover, the stationary external cylindrical body1and the rotatable internal cylindrical body2are configured to be connected to and disconnected from each other with a protruding-type bolt. Thus, the appearance of the nose hair clipper is spoiled. Furthermore, the inconvenience is caused when the nose hair clipper is in use. In order to clean the nose hair clipper after use, the stationary external cylindrical body1and the rotatable internal cylindrical body2have to be completely disconnected from each other using the bolt, thereby causing inconvenience to the user.

The inventor has developed a nose hair clipper with a structure that is modified in a novel way through much research and experiment, considering the problems described above.

FIGS. 7 to 11illustrate a nose hair clipper in which optimal improvements are made to structures of the external and internal cutting portions10and20to be formed on a normal stationary external cylindrical body1and a normal rotatable internal cylindrical body2, respectively. The same constituent elements are given the same reference character, and the same description thereof is not repeated.

An external cutting portion10formed circumferentially on an upper end of a stationary external cylindrical body1is configured with a plurality of first cutting edges110and a plurality of first slits120. An internal cutting portion20formed circumferentially on an upper end of a rotatable internal cylindrical body2is configure with a plurality of second cutting edges210and a plurality of second slits220.

Accordingly, the rotatable internal cylindrical body2is rotated relatively to the stationary external cylindrical body1in a state where each of the plurality of first cutting edges110of the external cutting portion10and each of the plurality of second cutting edges210of the internal cutting portion20are positioned in such a manner as to horizontally overlap each other and where each of the plurality of first slits120and each of the plurality of second slits220are positioned in such a manner as to horizontally overlap each other. Nose hairs are cut by the plurality of first cutting edges110and the plurality of second cutting edges210.

The first cutting edge110and the first slit120of the external cutting portion10are arranged in such a manner as to face each other, and a lower inclination surface121is formed in a manner that is linearly connected to the first slit120. The second cutting edge210and the second slit220of the internal cutting portion20are arranged in such a manner as to face each other, and a lower inclination surface221is formed in a manner that is linearly connected to the second slit220.

An internal inclination surface223of the second cutting edge210is formed in a manner that is linearly connected to a surface of the convex portion224formed upward from a bottom of the internal cutting portion20.

In addition, a plurality of rounded portions123are formed on an upper leading end of the external cutting portion10formed on the stationary external cylindrical body1. Therefore, the nose hairs are easier to introduce into a groove than in a case where an upper end portion of the stationary external cylindrical body1is angular. This does not inspire the user with the feeling of repulsion.

In addition, the plurality of rounded portions123of the external cutting portion10of the stationary external cylindrical body1extends upward to be higher than an upper leading end of the internal cutting portion20of the rotatable internal cylindrical body2by a predetermined gap S. It is preferable that the predetermined gap S is approximately 0.35 to 0.45 mm.

Accordingly, the nose hairs are easy to cut at a distance, corresponding to the predetermined gap S, away from the user's skin. Unlike in the previously employed structure, the external and internal cutting portions10and20formed on the upper leading ends, respectively, of the stationary external cylindrical body1and the rotation internal cylindrical body2are not arranged in the same position. Thus, a phenomenon where the nose hairs are cut at a short distance away from the user's skin can be prevented.

The upper leading end and the internal inclination surface223of the internal cutting portion20constituting the rotatable internal cylindrical body2are linearly connected between rounded portion225interposed therebetween. A lower inclination surface121formed on the first slit120in the external cutting portion10and a lower inclination surface221formed on the second slit220in the internal cutting portion20are arranged below the convex portion224of the internal cutting portion20.

Therefore, the nose hairs are guided toward the convex portion224through the second slit220, and are cut more reliably by the first cutting edges110and the second cutting edges210as if they were cut by scissors.

It is illustrated that the convex portion224is formed upward from the bottom of the internal cutting portion20. However, a concave portion224may be formed upward from the bottom of the internal cutting portion20.

In addition, since the predetermined gap S is present between the respective upper leading ends of the stationary external cylindrical body1and the rotatable internal cylindrical body2, the nose hairs are first blocked by an internal surface of the groove in the stationary external cylindrical body1, and thus go down. Subsequently, when the rotatable internal cylindrical body2is rotated, the nose hairs are cut more smoothly than in the previously employed structure.

It is most preferable that the number of the first slits120in the stationary external cylindrical body1is limited to 12 and that the number of the second slits220in the rotatable internal cylindrical body2is limited to 9. Thus, the optimal performance in cutting the nose hairs can be ensured.

FIGS. 12 to 16illustrate a nose hair clipper in which an improvement is made to the structure of the handling body thereof. The same constituent elements are given the same reference character, and the same description thereof is not repeated.

A bolt226serves to fasten the stationary external cylindrical body1and the rotatable internal cylindrical body2that constitute the nose hair clipper, to each other. A configuration is employed in which the bolt226does not protrude from a circumferential surface of the stationary external cylindrical body1and in which the bolt226is screwed through the stationary external cylindrical body1into a circumferential concave groove21′. Thus, the appearance of the nose hair clipper is not spoiled, and the inconvenience is not caused to the user.

In addition, an auxiliary cap30is removably attached, by a screw engagement manner, to a lower end of the handling body25. The auxiliary cap30includes a brush31and a driver32.

That is, an insertion hole33is formed in the auxiliary cap30. The brush31is integrally buried in a cylindrical body34of the auxiliary cap30. The cylindrical body34is held by inserting an insertion portion35formed on a lower end portion of the cylindrical body34into the insertion hole33. The driver32is formed in a center portion of a bottom surface of the auxiliary cap30. With the driver, the bolt is screwed and unscrewed to connect and disconnect the stationary external cylindrical body1to and from the rotatable internal cylindrical body2.

Accordingly, the auxiliary cap30is utilized when the stationary external cylindrical body1is completely separated from the rotatable internal cylindrical body2for cleaning and is connected back thereto after cleaning.

In addition, a permanent magnet40may be buried in a lower portion of the cylindrical body34. With a magnetic force of the permanent magnet40, the bolt226can be kept attached to the auxiliary cap30. Thus, the bolt226does not fall off from the nose hair clipper.

The driver32is formed in the center portion of the bottom surface of the auxiliary cap30by forming grooves in the center portion thereof. However, a driver32that is separately manufactured may be inserted into a through-hole36formed in the auxiliary cap30.

A described above, in the nose hair clipper according to the present disclosure, the rounded portion is formed on the upper leading end of the stationary external cylindrical body constituting a main body of the nose hair clipper. Thus, the nose hairs are easier to introduce at one time into the groove than in the previously employed structure in which the upper end portion of the stationary external cylindrical body1is angular. This does not inspire the user with the feeling of repulsion.

In addition, the upper leading end of the stationary external cylindrical body1is formed to be positioned by the predetermined gap S at a higher height than the upper leading end of the internal cutting portion20formed in the rotatable internal cylindrical body2. Accordingly, the nose hairs are first blocked by the internal surface of the groove and thus go down. Subsequently, the nose hairs are introduced toward a curved portion. A lower end portion of the inclination surface is formed relatively widely, and thus the nose hairs are cut smoothly.

Moreover, the bolt226fastening the stationary external cylindrical body1and the rotatable internal cylindrical body2to each other does not protrude from the circumferential surface of the stationary external cylindrical body1. Thus, the appearance of the nose hair clipper is not spoiled. Furthermore, while the nose hair clipper is in use, the inconvenience is not caused to the user. The auxiliary cap including the brush and the driver is mounted on the lower end of the handling body of the nose hair clipper. Thus, the stationary external cylindrical body1can be easily separated from the rotatable internal cylindrical body2when the cutting portions10and20need to be cleaned or whenever necessary for any other reason.