Hair styling nozzle and hair dryer

Abstract

A hair styling nozzle coupled to an air discharge part of a hair dryer, comprising: a rear coupling part coupled to the air discharge part; an air guide extended forward from the rear coupling part; a nozzle head including a nozzle hole located in front of the air guide through which air is discharged; and an elastic coupling part coupled to the nozzle head and the air guide such that the relative position of the nozzle head with respect to the air guide varies, can effectively implement a style in which the hair is in close contact with the scalp by guiding the air to flow downward.

Description

Technology Field

[0001] The present invention relates to a hair styling nozzle for fixing the shape of hair and a hair dryer equipped with the same. Background Technology

[0002] A hair dryer that emits gas through an air outlet can be used to remove moisture from human hair while it is wet or to style it from its current shape into a desired shape.

[0003] A fan unit for circulating gas may be built into the interior of the hair dryer, and the hair dryer including such internal components can be designed to be convenient for the user by taking into account its own weight, etc.

[0004] Since the heater module is located in the head section, if the case temperature rises due to the heat from the module, there is a risk of burns and it may affect internal components such as the control unit. Therefore, a structure is required whereby the heat from the heater module is entirely transferred to the air passing through the airflow path, rather than being transferred to the outside or other locations.

[0005] In particular, to use it wirelessly, a battery must be built-in, additional space must be secured in the hair dryer to mount the battery, and additional components such as an ion generator can be provided to expand functionality.

[0006] Hair dryers can be used for hair styling in addition to drying hair. However, achieving satisfactory styling at home is difficult because styling typically requires separate tools such as hair brushes or heat irons, or necessitates professional skills.

[0007] Development is underway for various types of accessories to expand the functionality of hair dryers, making hair styling easier at home. The problem to be solved

[0008] The present invention aims to provide a hair styling nozzle that allows for easy down perm styling at home by pressing the hair above the ears against the scalp, and a hair dryer equipped with the same. means of solving the problem

[0009] A hair styling nozzle coupled to an air discharge portion of a hair dryer comprises: a rear coupling portion coupled to the air discharge portion; an air guide extending forward from the rear coupling portion; a nozzle head including a nozzle hole located in front of the air guide through which air is discharged; and an elastic coupling portion coupled to the nozzle head and the air guide such that the relative position of the nozzle head with respect to the air guide varies.

[0010] The elastic fastening member may include a screw that passes through the air guide and is fastened to the nozzle head; and a spring into which the screw is inserted and which is interposed between the air guide and the nozzle head.

[0011] The rear coupling portion includes a ring coupling portion located around the circumference of the air discharge portion; and a central coupling portion located on the inner side of the rear portion and coupled with a magnet located in the center of the air discharge portion, and the air guide may include an outer guide connected from the ring coupling portion to the nozzle head; and a phase plug extending forward from the central coupling portion and having a vertical cross-section that becomes smaller as it extends forward.

[0012] The above elastic fastening part can be fastened to the nozzle head by penetrating the phase plug.

[0013] It may include a flow gap formed between the air guide and the nozzle head; and a sealing ring located inside the flow gap and interposed between the air guide and the nozzle head.

[0014] The air guide includes an outer guide connected from the rear coupling portion to the nozzle head, and the nozzle head includes a side wall portion that protrudes from the front circumference toward the rear and surrounds the outer circumference of the outer guide, and the sealing ring may be interposed between the side wall portion and the outer guide.

[0015] The sealing ring comprises: a fixed portion fixed to the outer guide; a contact portion protruding from the fixed portion and contacting the side wall portion; and a movable portion located between the fixed portion and the contact portion, wherein the hardness of the movable portion may be smaller than that of the fixed portion.

[0016] The contact portion may have a hardness equal to or greater than that of the fluid portion and less than that of the fixed portion.

[0017] The above outer guide may include a first fixing rib positioned at the front and rear of the fixing part to support the fixing part, and a second fixing rib inserted into the fixing part.

[0018] The above contact portion may have a hollow tube shape on the inside.

[0019] The above contact portion may include a projection at the end that protrudes toward the side wall portion.

[0020] A hair dryer body including a ring-shaped air discharge portion; and a hair styling nozzle coupled to the air discharge portion, wherein the hair styling nozzle comprises: a rear coupling portion coupled to the air discharge portion; an air guide extending forward from the rear coupling portion; a nozzle head including a nozzle hole located in front of the air guide through which air is discharged; and a coupling method wherein the nozzle head and the air guide can be coupled such that the relative position of the nozzle head with respect to the air guide is variable. Effects of the invention

[0021] The hair styling nozzle of the present invention guides the airflow downward to effectively achieve a style in which the hair adheres closely to the scalp.

[0022] In addition, the hair styling nozzle of the present invention can improve usability by making gentle contact with the scalp through the fluid structure of the nozzle head.

[0023] In addition, the hair styling nozzle of the present invention can prevent air leakage through the flow gap between the nozzle head and the air guide.

[0024] The effects obtainable from the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0025] FIG. 1 is a front perspective view showing a hair dryer according to one embodiment of the present invention. FIG. 2 is a rear perspective view showing a hair dryer according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating the interior of a hair dryer according to one embodiment of the present invention. FIG. 4 is a front perspective view of a hair styling nozzle according to a first embodiment of the present invention. FIG. 5 is a rear perspective view of a hair styling nozzle according to a first embodiment of the present invention. FIG. 6 is a horizontal cross-sectional view of a hair styling nozzle according to a first embodiment of the present invention. FIG. 7 is a vertical cross-sectional view of a hair styling nozzle according to a first embodiment of the present invention. FIGS. 8 and 9 are drawings illustrating the flow of air according to the size of the second discharge hole of a hair styling nozzle according to the first embodiment of the present invention. FIG. 10 is a horizontal cross-sectional view of a hair styling nozzle according to a second embodiment of the present invention. FIG. 11 is a cross-sectional view illustrating a sealing ring of a hair styling nozzle according to a second embodiment of the present invention. FIG. 12 is a cross-sectional view illustrating various embodiments of a sealing ring of a hair styling nozzle according to a second embodiment of the present invention. Specific details for implementing the invention

[0026] Below, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention.

[0027] However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the invention in the drawings, parts unrelated to the description have been omitted, and similar parts throughout the specification have been given similar reference numerals.

[0028] In this specification, redundant descriptions of identical components are omitted.

[0029] Furthermore, when a component is described in this specification as being 'connected' or 'connected' to another component, it should be understood that it may be directly connected to or connected to the other component, or that there may be other components in between. On the other hand, when a component is described in this specification as being 'directly connected' or 'directly connected' to another component, it should be understood that there are no other components in between.

[0030] Furthermore, the terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention.

[0031] Additionally, in this specification, singular expressions may include plural expressions unless the context clearly indicates otherwise.

[0032] Furthermore, in this specification, terms such as 'comprising' or 'having' are intended merely to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0033] Additionally, in this specification, the term "and / or" includes a combination of the plurality of described items or any of the plurality of described items. In this specification, "A or B" may include "A," "B," or "both A and B."

[0034] The present invention relates to a portable device that a user can hold and use with their hand, and refers to an electronic device that is small in size and used by the user by holding it with their hand. Since the portable device is not used while mounted but is held directly by the user, it must be lightweight, and the grip of the handle portion (102) is important. In addition, since contaminants are easily introduced from the outside, a waterproof function may be required. Furthermore, it is necessary to seal the gap between the case and the frame so that internal air is not discharged to an area other than the air discharge portion.

[0035] The portable device of the present invention relates to a beauty device, and a representative example is a hair dryer (100) for hair care. Although the description is based on a hair dryer (100), it is not limited thereto, and portable devices such as skin care devices or body care devices that are held and used by a user may also be included in the present invention.

[0036] FIG. 1 is a front perspective view illustrating a hair dryer (100) according to one embodiment of the present invention, and FIG. 2 is a rear perspective view of a hair dryer (100) according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of a hair dryer (100) according to one embodiment of the present invention, which is the AA cross-section of FIG. 2.

[0037] In the drawing, the x-axis represents the left-right direction, the y-axis represents the front-back direction, and the z-axis represents the up-down direction. When viewed from the front, +x is the right and -x is the left. +y is the front and -y is the rear, and +z is the up and -z is the down.

[0038] A hair dryer (100) according to one embodiment of the present invention includes a main body composed of a head portion (101) and a handle portion (102). The handle portion (102) is provided with an air inlet portion (104) at the bottom for air to be introduced from the outside, and the head portion (101) may include an air discharge portion (103) for gas discharge, a heater module (150), and a touch display (135) on the back.

[0039] The interior of the main body (101, 102) of the hair dryer (100) includes an air passage extending from the air inlet (104) to the air outlet (103). The air passage of the present invention is not a straight passage, but moves vertically from the handle (102) as shown in FIG. 3 and then turns horizontally at the head (101).

[0040] The air inlet (104) may be located at the bottom of the handle (102), and the air outlet (103) may be located at the front of the head (101). The handle (102) and the head (101) have shapes corresponding to the extension direction of the air passage. For usability, the handle (102) may be extended in a direction slightly tilted forward from the vertical direction relative to the head (101).

[0041] The handle portion (102) is composed of a cylinder with a diameter that a user can grasp with their hand, and the head portion (101) can be formed in a cylindrical shape with a larger diameter than the handle portion (102). The diameter of the handle portion (102) can be formed uniformly from the bottom to the top, but the head portion (101) can have a shape with a slightly smaller diameter at the front so that air comes out at a high speed with strong pressure through the air discharge portion (103).

[0042] The air inlet (104) includes a gas intake hole (1283) formed along the circumference of the handle portion (102) and may include a filter to prevent foreign substances such as dust from entering. A filter frame with a fixed filter may be located at the bottom of the handle portion (102) to form the air inlet (104).

[0043] The filter is made of a different material from the case (111, 121) that forms the exterior of the hair dryer (100), and since it is a thin film-shaped component, it can be damaged by external impact. Therefore, a filter cover (128) to protect the filter may be further included, and the filter cover (128) may be configured to be detachable for cleaning and replacing the filter.

[0044] The air discharge section (103) is located in front of the head section (101) and may include a ring-shaped opening. As shown in FIG. 3, the heating wire (156) of the heater module (150) of the present invention forms a donut shape with a hollow center and is wound around the circumference of a cylindrical heater housing (158). Corresponding to the arrangement of the heating wire (256), the air discharge section (103) may also have a ring shape. That is, the center of the air discharge section (103) may be closed to form a ring shape.

[0045] To extend the function of the hair dryer (100), a hair styling nozzle (200) that is coupled to the air discharge unit (103) may be further included. The hair styling nozzle (200) can be easily detachable through a magnet located in the central part of the air discharge unit (103).

[0046] FIG. 4 is a front perspective view of a hair styling nozzle (200) according to a first embodiment of the present invention, and FIG. 5 is a rear perspective view of a hair styling nozzle (200) according to a first embodiment of the present invention. The hair styling nozzle (200) of the present invention is a hair styling nozzle (200) for pressing and fixing side hair above the ear in a short hairstyle. A styling method that presses hair extending vertically from the hair roots above the ear towards the scalp is commonly called down perm styling.

[0047] Down perm styling can be achieved at a hair salon using perm solution, but there is a problem where the hair becomes frizzy again after a certain period due to new hair growth. There is a need for a styling tool that allows for easy styling at home while drying hair without visiting a salon.

[0048] Conventionally, there are band-type devices worn on the head to prevent side hair from sticking out, but the hair at the back may be pressed against the band connecting the two ends. Alternatively, there is a risk of burns if the band-type device is used for a long time for down perm styling or if heat is applied.

[0049] The present invention provides a hair styling nozzle (200) that can be attached to the air discharge part (103) of a hair dryer (100) so that down perm styling can be done at home.

[0050] The hair dryer (100) of the present invention may include a rear coupling part (210) located at the rear and connected to an air discharge part (103), a nozzle head (220) located at the front and having nozzle holes (222, 223, 224, see FIG. 7) for providing hot air, and an air guide (230) connecting the rear coupling part (210) and the nozzle head (220) to guide the supply of hot air from the rear to the front.

[0051] As illustrated in FIG. 5, the rear coupling portion (210) may include a shape corresponding to the air discharge portion (103) of the hair dryer (100), and the rear coupling portion (210) may include a ring coupling portion (211) that is fastened to the outer circumference of the air discharge portion (103) and a central coupling portion (215) that is fastened to the center of the air discharge portion (103).

[0052] The central coupling part (215) can be connected via magnetic force to the nozzle coupling part (210) located in the center of the air discharge part (103). A hair styling nozzle (200) can be fixed to the main body head part (101) by placing a magnet having a different pole from the nozzle coupling part (113).

[0053] When fixed by the magnetic force of the central coupling part (215) and the nozzle coupling part (113), the ring coupling part (211) is in close contact with the outer circumference of the air discharge part (103). To prevent air from leaking between the ring coupling part (211) and the air discharge part (103), the back surface of the ring coupling part (211) may include an elastic material so as to be in close contact with the air discharge part (103) of the head part (101).

[0054] A nozzle head (220) located at the front of the rear coupling part (210) may include a plurality of first nozzle holes (222) for evenly supplying hot air introduced through the rear coupling part (210) to the hair.

[0055] The hair styling nozzle (200) of the present invention is a device used by being in close contact with the head above the ear, and the area of ​​the nozzle head (220) is wider than the rear connecting part (210) so that hot air can be supplied to a wide area.

[0056] The nozzle head (220) may have a horizontal length longer than the vertical length, and may be rectangular or have a curved edge shape as shown in FIG. 4.

[0057] FIG. 6 is a horizontal cross-sectional view of a hair styling nozzle (200) according to a first embodiment of the present invention, which is the BB cross-sectional view of FIG. 4. As shown in FIG. 6, the nozzle head (220) can be bent to have a predetermined curvature in the horizontal direction corresponding to the shape of the head, with both ends protruding forward. In the vertical direction, the length is shorter than in the horizontal direction, and since the part of the head above the ears is not a part with a large curvature, it can have a flat surface.

[0058] The air guide (230) may include an outer guide (231) extending from the outer circumference of the ring coupling portion (211) and a phase plug (235) extending from the central coupling portion (215).

[0059] Since the nozzle head (220) is wider in the horizontal direction than the rear coupling part (210), the outer guide (231) extending from the rear coupling part (210) to the nozzle head (220) is wider at the front end than at the rear end. Although the outer guide (231) can be configured to gradually widen from the rear coupling part (210) to the nozzle head (220), it can also be configured to narrow from the rear end to the front end and then widen again, as shown in FIG. 6.

[0060] Since the air discharge section (103) has a ring shape, if the outer guide (231) does not have a part (rear end) that collects air towards the center, the supply of hot air to the central part is not smooth, so the outer guide (231) can have a shape where the rear end narrows as it goes forward.

[0061] The phase plug (235) may form a gentle curved surface that narrows from the rear to the front, corresponding to the shape of the rear end of the outer guide (231). Although the phase plug (235) of this embodiment is configured in a hemispherical shape, the vertical and horizontal shapes of the phase plug (235) may be configured differently because the horizontal width and the vertical width of the nozzle head (220) are different.

[0062] For down perm styling that presses the hair above the ear downward, the nozzle head (220) may include a plurality of vertical ribs (221) that extend in a vertical direction so that the air ejected from the nozzle hole (222) flows downward. As shown in FIG. 6, the vertical ribs (221) may protrude forward from the front (226) of the nozzle head (220) and may be arranged in a plurality at a predetermined interval in a horizontal direction.

[0063] FIG. 7 is a vertical cross-sectional view of a hair styling nozzle (200) according to a first embodiment of the present invention, which is the CC cross-sectional view of FIG. 4. The vertical rib (221) protrudes forward from the front (226) of the nozzle head (220) so that the front (226) of the nozzle head (220) does not directly touch the scalp and can maintain a predetermined distance. The hot air provided to the space between the front (226) of the nozzle head (220) and the scalp through the first nozzle hole (222) can flow downward because horizontal flow is restricted by the vertical rib (221).

[0064] The front surface (226) of the nozzle head (220) of the present invention is characterized by having multiple stages. Referring to FIG. 7, the front surface (2261, 2262, 2263) is formed in three stages, but can be composed of two or more front surfaces (226).

[0065] The front surface (226) may include a first front surface (2261) located at the top and a second front surface (2262) located below the first front surface (2261) and in the rear direction. It may also be composed of a third front surface (2263) or a greater number of multi-stage front surfaces (226) located below the second front surface (2262).

[0066] Due to the multi-stage structure, the gap between the user's scalp and the front of the nozzle head (2261, 2262, 2263) is wider at the bottom, so that the heat discharged from the first nozzle hole (222) can move downward.

[0067] Referring to FIG. 7, the front end of the vertical rib (221) forms a straight line extending in the vertical direction, while the rear end of the vertical rib (221) forms a step and may be located in the rear direction. That is, since the front (2261, 2262, 2263) of the nozzle head (220) is located in the rear direction as it goes downward, the width of the vertical rib (221) in the front-rear direction may have a multi-stage shape where the lower side is wider than the upper side.

[0068] A plurality of first nozzle holes (222) facing forward may be formed on the first front surface (2261). Air discharged vertically from the first nozzle holes (222) toward the head on the first front surface (2261) may move downward along the vertical rib (221).

[0069] To provide downward-flowing hot air, a second nozzle hole (223) facing downward can be configured in the stepped portion between the first front (2261) and the second front (2262) that is drawn in from the rear. If a third front (2263) is additionally included below the second front (2262), a third nozzle hole (224) can be further provided in the stepped portion between the second front (2262) and the third front (2263). Since the roles of the second nozzle hole (223) and the third nozzle hole (224) are similar, the explanation will be based on the second nozzle hole (223).

[0070] FIGS. 8 and 9 are drawings illustrating the flow of air according to the size of the second exposed hole (223) of the hair styling nozzle (200) of the present invention.

[0071] The bottom of the first front (2261) and the top of the second front (2262) are spaced apart to form a step, and a second nozzle hole (223) may be formed in the step. The shape of the second nozzle hole (223) may vary depending on the position of the bottom of the first front (2261) and the top of the second front (2262).

[0072] The embodiment illustrated in FIG. 8 is an embodiment in which the bottom of the first front (2261) and the top of the second front (2262) are positioned at the same height in the vertical direction (y1=0) and are spaced apart only in the front-rear direction (x>0).

[0073] At this time, since the second nozzle hole (223) faces downward in a vertical direction, the direction of the wind discharged from the second nozzle hole (223) is also directed downward. However, in this case, since the hot air may flow downward before being supplied to the hair, the shape of the second nozzle hole (223) can be changed so that the hot air is supplied further forward.

[0074] The embodiment illustrated in FIG. 9 has the bottom of the first front (2261) and the top of the second front (2262) positioned vertically separated (y2 > 0), and the nozzle hole may be open in an oblique direction toward the lower side of the front (226). FIG. 9 illustrates the results of a simulation designed with y2 = 2 mm.

[0075] The air discharged from the second nozzle hole (223) of this embodiment is discharged at an angle compared to the embodiment of FIG. 8, so that the hot air can extend further forward than the front of the vertical rib (221) as shown in FIG. 9. Therefore, in this embodiment, the hot air can be delivered more effectively to the hair located in front of the nozzle head (220).

[0076] The size of the second nozzle hole (223) in the front-to-back direction can be formed larger than the size in the vertical direction (x > y2) so that the hot air discharged through the second nozzle hole (223) is discharged in a direction tilted downward rather than forward. Since the front-to-back size and the size in the vertical direction of the second nozzle hole are determined by the position of the bottom of the first front part (2261) and the top of the second front part (2262), the gap between the bottom of the first front part (2261) and the top of the second front part (2262) can be configured so that the vertical direction is smaller than the front-to-back direction.

[0077] FIG. 10 is a horizontal cross-sectional view of a hair styling nozzle (200) according to a second embodiment of the present invention. The hair styling nozzle (200) of the present invention is used in close contact with the user's scalp and may include an elastic member (262) so as to be able to contact the scalp without applying strong pressure to the scalp when the user applies pressure in the direction of the scalp.

[0078] Although methods such as adding a rubber material to the protrusions that come into contact with the scalp can be used, since the hair styling nozzle (200) of the present invention has a large surface area in contact with the scalp, if the vertical ribs (221) that come into contact with the scalp are formed of rubber, a problem may occur where hair gets caught.

[0079] Accordingly, the present invention can improve usability by adding elasticity to the fastening structure (260) between the nozzle head (220) and the air guide (230) so that the position of the nozzle head (220) in contact with the scalp can be varied.

[0080] In this embodiment, the connection between the nozzle head (220) and the air guide (230) is implemented through an elastic connection part (260), and the elastic connection part (260) may include a spring (262) as shown in FIG. 10. The maximum distance between the air guide (230) and the nozzle head (220) is fixed, but when the nozzle head (220) is pressed backward, the nozzle head (220) is pushed backward, so that the gap between the nozzle head (220) and the air guide (230) can be narrowed.

[0081] As described above, the air guide (230) may be composed of a phase plug (235) located in the center and an outer guide (231) located on the outer circumference. The outer guide (231) extends from the ring coupling portion (211) and provides a flow path through which hot air discharged from the air discharge portion (103) is supplied to the nozzle head (220).

[0082] The phase plug (235) protrudes forward from the central coupling portion (215) and may have a shape that narrows forward. The phase plug (235) may serve to collect the hot air discharged from the ring-shaped air discharge portion (103) towards the center.

[0083] The elastic fastening part (260) may include a spring (262) that changes the gap between the nozzle head (220) and the air guide (230), and a screw (261) for limiting the movement of the nozzle head (220) by the spring (262).

[0084] The screw (261) is a member that limits the maximum distance so that the nozzle head (220) and the air guide (230) are not separated, and can be fastened to the screw boss (228) formed on the nozzle head (220) by passing through the phase plug (235).

[0085] The screw boss (228) protrudes backward from the front (226) of the nozzle head (220), and since the second front (2262) does not have a nozzle hole facing forward, it can be formed on the second front (2262).

[0086] The screw (261) inserted into the phase plug (235) is not fixed in a forward / backward position to the phase plug (235), so the relative position of the phase plug (235) with respect to the screw (261) can change. A spring (262) can be interposed between the phase plug (235) and the nozzle head (220) by wrapping around the outer surface of the screw (261).

[0087] The spring (262) can adjust the gap between the nozzle head (220) and the air guide (230) as its length changes. Since the phase plug (235) has a curved surface, the part through which the screw passes to fix the rear end of the spring (262) protrudes forward (236) to support the rear end of the spring (262).

[0088] FIG. 10 is a horizontal cross-sectional view of the central portion in the vertical direction. Referring to FIG. 10, the nozzle head (220) may include a side wall portion (225) extending from the front (226) perimeter in the rear direction. An air guide (230) is inserted into the rear surface of the nozzle head (220), and the end of the outer guide (231) may be coupled to the inside of the side wall portion (225) of the nozzle head (220).

[0089] Since the outer guide (231) is inserted from the rear of the nozzle head (220), the connection portion of the outer guide (231) of the nozzle head (220) faces the rear. The connection portion of the outer guide (231) of the nozzle head (220) is spaced apart from the front (226) of the nozzle head (220) where hair comes into contact, thereby minimizing the problem of hair getting stuck between the outer guide (231) and the nozzle head (220).

[0090] It may include a nozzle hook (229) protruding from the rear end of the side wall portion (225) of the nozzle head (220), and the nozzle hook (229) may be connected to the circumference of the outer guide (231) to hold the outer guide (231) so that it does not detach from the nozzle head (220).

[0091] Since the nozzle hook (229) is engaged in the rear direction of the outer guide (231), the nozzle head (220) moves in the rear direction as shown in FIG. 10, and movement in the direction in which the outer guide (231) is further drawn into the nozzle head (220) is not restricted. In addition to the nozzle hook (229) protruding from the end of the side wall portion (225) of the nozzle head (220), a hook (229') may be further included to prevent the air guide (230) and the nozzle head (220) from being separated.

[0092] It is necessary to ensure that there is no interference between the nozzle head (220), which has a structure that allows the nozzle head (220) to flow, and the air guide (230). However, air flowing into the hair styling nozzle (200) through the flow gap (g) may flow out through the flow gap (g). A sealing ring (250) may be included to allow flow between the nozzle head (220) and the air guide (230) while simultaneously shielding the air flowing out through the flow gap (g) between the nozzle head (220) and the air guide (230).

[0093] The sealing ring (250) is interposed between the circumference of the outer guide (231) and the circumference of the side wall (225) of the nozzle head (220), and may have a ring shape with both ends connected. Unlike conventional sealing structures for waterproofing or windproofing, the sealing ring (250) of the present invention is characterized by the shape of its cross-section, as it is necessary to prevent wind from leaking out if there is fluidity.

[0094] FIG. 11 is a cross-sectional view illustrating a sealing ring (250) of a hair styling nozzle (200) according to a second embodiment of the present invention.

[0095] The sealing ring (250) is fixed to the circumference of the outer guide (231) so as to face outward and can come into contact with the inner side of the side wall (225) of the nozzle head (220). The sealing ring (250) can be configured to be larger than the gap between the nozzle head (220) and the outer guide (231) so as to be in close contact with the nozzle head (220).

[0096] The sealing ring (250) may include a fixed portion (251) fixed to an outer guide (231) and a contact portion (254) in close contact with a side wall portion (225) of the nozzle head (220). The area between the contact portion (254) and the fixed portion (251) may include a movable portion (252) that allows for easy shape change according to the movement of the nozzle head (220).

[0097] The sealing ring (250) may include an elastic material such as silicone, and the fixed part (251), contact part (254), and flow part (252) may be made of the same material or different materials. However, for ease of manufacturing, they may be made of the same material but with different thickness and shape to have different characteristics.

[0098] The contact portion (254) has elasticity so that it can be in close contact with the side wall portion (225) of the nozzle head (220) and can be configured to have a large surface area so that it can maintain contact with the side wall portion (225) of the nozzle head (220) even during flow.

[0099] FIG. 12 is a cross-sectional view illustrating various embodiments of a sealing ring (250) of a hair styling nozzle (200) according to a second embodiment of the present invention. The contact portion (254) may have a semicircular cross-section as in FIG. 12 (a) or may be configured as a rectangular shape as in FIG. 12 (b). A protrusion (255) or a wrinkle may be formed at the end of the contact portion (254), that is, at the part that contacts the side wall portion (225).

[0100] The contact portion (254) of the sealing ring (250) can be configured in the form of a hollow tube so as to be in close contact with the side wall portion (225) when in contact. Since the sealing ring (250) forms a closed curve, the inner surface (right side in the drawing) that connects to the outer guide (231), such as a bicycle tube, can be opened to form a hollow space inside the contact portion (254).

[0101] The fluid section (252) can be made of a material that is easy to deform, so that the movement of the nozzle head (220) is offset by the change in the shape of the fluid section (252), thereby minimizing the movement of the contact section (254) from the side wall section (225).

[0102] The fluid portion (252) can be formed with folds to facilitate shape changes as shown in FIG. 11. The fluid portion (252) can be configured to be the same as or thinner than the contact portion (254).

[0103] The fixed part (251) has rigidity so that it can be stably fixed to the outer guide (231), and for rigidity, its thickness may be formed thicker than other parts. However, since there is a risk of detachment due to the characteristics of the material, it may include fixing ribs (2341, 2342) that fix the sealing ring (250) to the outer guide (231) as shown in FIG. 11.

[0104] The fixing rib may include a first fixing rib (2341) that wraps around the inner side, front side (226), and back side in addition to the outer side of the fixing part (251), and may include a second fixing rib (2342) that is inserted into the center of the fixing part (251) as well as around the perimeter of the fixing part (251).

[0105] Since the sealing ring (250) has an open inner shape, the fixing part (251) is divided into front and back sections, so the second fixing rib (2342) can be inserted into the divided sections of the fixing part (251). The second fixing rib (2342) is formed in a T-shape to minimize the sealing ring (250) from coming off.

[0106] The thickness of the contact portion (254) can be configured to be 0.5 mm or less, and the thickness of the fixing portion (251) can be configured to be 1 mm or more, so that the thickness of the contact portion (254) and the fixing portion (251) can be configured to be several times larger. In this embodiment, the thickness of the contact portion (254) is 0.3 mm and the thickness of the fixing portion (251) is 1.5 mm.

[0107] As seen above, the hair styling nozzle (200) of the present invention can effectively implement a style that adheres to the scalp by guiding the air to flow downward.

[0108] In addition, the hair styling nozzle of the present invention can improve usability by making gentle contact with the scalp through the fluid structure of the nozzle head (220).

[0109] In addition, the hair styling nozzle of the present invention can prevent air from leaking through the flow gap (g) between the nozzle head (220) and the air guide (230).

[0110] Although the present invention has been illustrated and described in relation to specific embodiments, it will be obvious to those skilled in the art that the present invention can be modified and changed in various ways without departing from the technical spirit of the invention as provided by the following claims. Explanation of the symbols

[0111] 100: Hair dryer 101: Head section 102: Handle part 103: Air discharge section 104: Air inlet 200: Hair styling nozzle 210: Rear connection part 211: Ring joint 215: Central joint 220: Nozzle head 221: Vertical rib 222: 1st nozzle hole 223: Second nozzle hole 224: 3rd nozzle hole 225: Sidewall 2261: First Front 2262: Second Front 228: Third Front 229: Nozzle hook 230: Air Guide 231: Outer Guide 2341: 1st fixed rib 2342: 2nd fixed rib 235: Phase Plug 241: Bottom Guide 242: Bottom Home 243: Lower Euro 244: Windbreaker Rib 245: Central Guide 250: Sealing ring 251: Fixed part 252: Floating part 254: Contact part 255: Irregularities

Claims

Claim 1 A hair styling nozzle coupled to an air discharge portion of a hair dryer, comprising: a rear coupling portion coupled to the air discharge portion; an air guide extending forward from the rear coupling portion; a nozzle head including a nozzle hole located in front of the air guide through which air is discharged; and an elastic coupling portion for coupling the nozzle head and the air guide such that the relative position of the nozzle head with respect to the air guide varies; a flow gap formed between the air guide and the nozzle head; and a sealing ring located inside the flow gap and interposed between the air guide and the nozzle head. Claim 2 A hair styling nozzle according to claim 1, wherein the elastic fastening portion comprises: a screw that passes through the air guide and is fastened to the nozzle head; and a spring into which the screw is inserted and which is interposed between the air guide and the nozzle head. Claim 3 A hair styling nozzle according to claim 1, wherein the rear coupling portion comprises a ring coupling portion located around the circumference of the air discharge portion; and a central coupling portion located on the inner side of the rear portion and coupled with a magnet located at the center of the air discharge portion, and the air guide comprises an outer guide connected from the ring coupling portion to the nozzle head; and a phase plug extending forward from the central coupling portion and having a vertical cross-section that becomes smaller as it extends forward. Claim 4 A hair styling nozzle according to paragraph 3, characterized in that the elastic fastening portion penetrates the phase plug and is fastened to the nozzle head. Claim 5 delete Claim 6 A hair styling nozzle according to claim 1, wherein the air guide includes an outer guide connected from the rear coupling portion to the nozzle head, the nozzle head includes a side wall portion that protrudes from the front circumference toward the rear direction and surrounds the outer circumference of the outer guide, and the sealing ring is interposed between the side wall portion and the outer guide. Claim 7 A hair styling nozzle according to claim 6, wherein the sealing ring comprises: a fixed portion fixed to the outer guide; a contact portion protruding from the fixed portion and contacting the side wall portion; and a movable portion located between the fixed portion and the contact portion, wherein the hardness of the movable portion is smaller than that of the fixed portion. Claim 8 A hair styling nozzle according to claim 7, characterized in that the contact portion has a hardness equal to or greater than that of the fluid portion and a hardness less than that of the fixed portion. Claim 9 A hair styling nozzle according to claim 7, characterized in that the outer guide comprises a first fixing rib positioned at the front and rear of the fixing part to support the fixing part, and a second fixing rib inserted into the fixing part. Claim 10 A hair styling nozzle according to claim 7, characterized in that the contact portion has a hollow inner tube shape. Claim 11 A hair styling nozzle according to claim 7, characterized in that the contact portion includes a projection protruding toward the side wall portion at the end. Claim 12 A hair dryer comprising: a main body including a ring-shaped air discharge portion; and a hair styling nozzle coupled to the air discharge portion, wherein the hair styling nozzle comprises: a rear coupling portion coupled to the air discharge portion; an air guide extending forward from the rear coupling portion; a nozzle head located in front of the air guide and including a nozzle hole through which air is discharged; and an elastic coupling portion for coupling the nozzle head and the air guide such that the relative position of the nozzle head with respect to the air guide varies; a flow gap formed between the air guide and the nozzle head; and a sealing ring located inside the flow gap and interposed between the air guide and the nozzle head.

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