Hair curler

By designing a forwarder rack with a closed ring structure and a curler with a U-shaped forwarding port, the problem of automatic curlers being prone to messy hair and knots when curling, achieving a smoother and more efficient curling process.

WO2025102613A1PCT designated stage expired Publication Date: 2025-05-22SHANGHAI TAI MO ELECTRONIC TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/090162
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-14
Filing Date
2024-04-26
Publication Date
2025-05-22

AI Technical Summary

Technical Problem

Automatic hair curlers can easily lead to messy hair and knotting problems when curling hair.

Method used

A hair curler is designed, and its forwarding rack is a closed ring structure, with a U-shaped forwarding port extending in the height direction on the side wall, ensuring that the hair can only be transferred from the forwarding port, avoiding messy hair, and preventing the hair from being curled by secondary curls, thereby avoiding knots and getting stuck.

Benefits of technology

It effectively avoids the problem of random hair, and at the same time prevents the hair from being stuck, improving the smoothness and efficiency of curly hair.

✦ Generated by Eureka AI based on patent content.

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Abstract

A hair curler (100), comprising a handle (1) and a hair curling assembly. The hair curling assembly comprises a heat conduction barrel (2) and a hair rotating frame (3); the heat conduction barrel (2) projects from the top of the handle (1); a hair inlet slot (21) is formed in the top of the heat conduction barrel (2); the hair rotating frame (3) is rotatably mounted on the peripheral side of the heat conduction barrel (2); the hair rotating frame (3) is of a closed annular structure; a hair rotating port (31) is formed in the side wall of the hair rotating frame (3); the hair rotating port (31) extends along the height direction of the hair rotating frame (3); and when the hair rotating frame (3) stops, the hair rotating port (31) is arranged opposite to the hair inlet slot (21). Therefore, the hair can only enter from the hair rotating port, which avoids the problem of hair being tangled and prevents the hair from being curled for the second time, thus preventing the hair from getting knotted and stuck.
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Description

curling iron

[0001] This application claims priority to Chinese patent application No. 202323082564.8 filed on November 14, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of hairdressing tools, and in particular to a hair curler. Background Art

[0003] The curling assembly of an automatic curling iron consists of a heat-conducting cylinder and a rotating frame. The rotating frame rotates around the heat-conducting cylinder, wrapping the hair around it and creating a curl. Currently, the rotating frame of automatic curling irons often consists of a circular array of pillars. Hair enters and becomes entangled in the gaps between the pillars, which can easily cause hair to become tangled and stuck. Technical issues

[0004] The main purpose of the present application is to provide a hair curler, which aims to solve the problem that hair curlers are prone to tangling and knotting when curling hair. Technical Solutions

[0005] To achieve the above-mentioned purpose, the curling iron proposed in the present application includes a hand-held handle and a curling assembly, the curling assembly includes a heat-conducting tube and a forwarding frame, the heat-conducting tube is protruded from the top of the hand-held handle, and a hair entry groove is formed on the top of the heat-conducting tube, and the forwarding frame is rotatably installed on the circumference of the heat-conducting tube. The forwarding frame is a closed annular structure, and a forwarding port is provided on the side wall of the forwarding frame. The forwarding port is extended along the height direction of the forwarding frame. When the forwarding frame stops, the forwarding port is arranged opposite to the hair entry groove.

[0006] In one embodiment, the forwarding port extends vertically to the bottom of the forwarding rack.

[0007] In one embodiment, the width of the forwarding port gradually shrinks from top to bottom; or, the width of the forwarding port gradually widens from top to bottom.

[0008] In one embodiment, a barrier strip is protruding from the inner wall of the forwarding frame. The barrier strip is relatively arranged on both sides of the forwarding port and extends along the height direction of the forwarding frame.

[0009] In one embodiment, a transparent area is formed on the side wall of the forwarding frame.

[0010] In one embodiment, the side of the forwarding rack facing the forwarding port is the input side, the side of the forwarding rack facing away from the forwarding port is the back side, the top surface of the forwarding rack is an inclined surface, and the height of the back side is lower than the height of the input side.

[0011] In one embodiment, the curling iron further comprises a shell, wherein a fixed cover of the shell is arranged on the peripheral side of the curling frame, and a hair clipping opening is provided on the side wall of the shell, wherein the hair clipping opening is located at the top of the shell and is arranged opposite to the hair entry slot.

[0012] In one embodiment, the side wall of the housing is further provided with an escape opening, which is located below the clipping opening and communicates with the clipping opening.

[0013] In one embodiment, the housing and the handle are eccentrically arranged, the central axis of the housing is offset toward the side where the clip opening is located, and the heat-conducting tube is located at the central axis of the housing.

[0014] In one embodiment, the diameter of the shell is larger than the diameter of the handle, the side of the shell facing away from the clip opening is flush with the handle, and the side of the shell facing the clip opening is protruding from the handle.

[0015] In one embodiment, the curling iron further includes a driving assembly, which includes a motor, an internal gear and an external gear. The motor is installed in the hand-held handle and is located at the top of the hand-held handle. The internal gear is sleeved on the motor to rotate with the motor. The external gear is installed at the bottom of the curling frame. The internal gear is eccentrically arranged in the external gear and meshes with the external gear. Beneficial effects

[0016] The curling iron of the present application includes a handheld handle and a curling assembly, wherein the curling assembly includes a heat-conducting cylinder and a forwarding frame, the forwarding frame is rotatably mounted on the top of the handheld handle, the heat-conducting cylinder is convexly arranged on the top of the handheld handle, and is located at the axis of the forwarding frame and is in clearance with the forwarding frame. The top of the heat-conducting cylinder is recessed with a hair entry groove, and the side wall of the forwarding frame is provided with a forwarding port, which is extended along the height direction of the forwarding frame. When the forwarding frame stops, the forwarding port is arranged opposite to the hair entry groove. Traditional forwarding frames are mostly arranged in a circular array with pillars. Unlike traditional forwarding frames, the forwarding frame in the present curling iron is a closed annular structure. The side wall of the forwarding frame is provided with a forwarding port extending along the height direction, thereby ensuring that hair can only be transferred in from the forwarding port, avoiding the problem of messy hair, and preventing the hair from being curled twice, thereby preventing the hair from getting tangled and stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] FIG1 is a front view of an embodiment of a hair curler of the present application;

[0019] FIG2 is a side view of an embodiment of a hair curler of the present application;

[0020] FIG3 is a schematic structural diagram of a hair curling assembly according to an embodiment of the hair curling device of the present application;

[0021] FIG4 is a schematic structural diagram of a forwarding frame of an embodiment of a hair curler of the present application;

[0022] FIG5 is a schematic structural diagram of the forwarding frame of FIG4 from another perspective;

[0023] FIG6 is a schematic structural diagram of a handheld handle and a housing of an embodiment of a hair curler of the present application;

[0024] FIG. 7 is a schematic structural diagram of a driving assembly of an embodiment of a hair curler of the present application.

[0025] Description of Figure Numbers:

[0026] Label Name Label Name 100 Curler 33 Transparent Area 1 Handle 4 Shell 2 Heat Conducting Cylinder 41 Hair Clip 21 Hair Insertion Slot 42 Avoidance 3 Forwarding Frame 51 Motor 31 Forwarding Port 52 Internal Gear 32 Baffle Bar 53 External Gear

[0027] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] Currently, the forwarding frame of the automatic hair curler is mostly arranged in a circular array of pillars. Hair enters and gets entangled through the gaps between different pillars, which easily causes the hair to become tangled and stuck. To solve this problem, the present application proposes a hair curler.

[0032] The curling iron 100 of the present application includes a hand-held handle 1 and a curling assembly, which includes a heat-conducting tube 2 and a forwarding frame 3. The heat-conducting tube 2 is protruded from the top of the hand-held handle 1, and a hair entry groove 21 is formed on the top of the heat-conducting tube 2. The forwarding frame 3 is rotatably installed on the circumference of the heat-conducting tube 2. The forwarding frame 3 is a closed annular structure, and a forwarding port 31 is provided on the side wall of the forwarding frame 3. The forwarding port 31 is extended along the height direction of the forwarding frame 3. When the forwarding frame 3 stops, the forwarding port 31 is arranged opposite to the hair entry groove 21.

[0033] 1 to 3 , the curling iron 100 of the present application includes a handheld handle 1 and a curling assembly, the curling assembly including a heat-conducting tube 2 and a rotating frame 3. The heat-conducting tube 2 is protruding from the top of the handheld handle 1. A heating element is disposed within the handheld handle 1. The heating element is thermally connected to the heat-conducting tube 2 to conduct heat to the heat-conducting tube 2, thereby heating the sidewalls of the heat-conducting tube 2. The rotating frame 3 is rotatably mounted on the top of the handheld handle 1, concentrically disposed with the heat-conducting tube 2 and having a clearance fit with the heat-conducting tube 2. A drive assembly is disposed at the connection between the handheld handle 1 and the rotating frame 3, and the drive assembly is used to drive the rotating frame 3 to rotate about the heat-conducting tube 2. An inlet head is protruding from the top of the heat conducting tube 2. The top surface of the inlet head is higher than the top surface of the forwarding rack 3, and an inlet groove 21 is formed on the top surface of the inlet head. The inlet groove 21 is in a straight line shape, extending radially along the heat conducting tube 2, and both ends are connected to the side wall of the inlet head. The inlet head is formed with two oppositely arranged first and second inlet ports. The first and second inlet ports are U-shaped, and the lowest point of the first inlet port is higher than the lowest point of the second inlet port, and the lowest point of the first inlet port is higher than the highest point of the forwarding rack 3, and the lowest point of the second inlet port is lower than the highest point of the forwarding rack 3.

[0034] Unlike traditional forwarding racks, which often feature a circular array of pillars, the forwarding rack 3 in the curling iron 100 is a closed ring-shaped structure. Its sidewalls are defined by a U-shaped forwarding opening 31 extending vertically. A Hall effect sensor is incorporated into the drive assembly of the forwarding rack 3 to ensure that the forwarding rack 3 returns to its initial position when the curling iron 100 stops operating. The forwarding opening 31 of the forwarding rack 3 is aligned with the hair inlet slot 21 and directly faces the second hair inlet.

[0035] When the hair is inserted, the hair is sequentially placed into the first hair inlet, the hair inlet groove 21, the second hair inlet and the forwarding opening 31. As the heights of the first hair inlet, the hair inlet groove 21, the second hair inlet and the forwarding opening 31 gradually decrease, the hair can fall down in sequence under the action of gravity, thereby allowing the hair to enter the curling iron 100 in an orderly manner and avoiding disorderly hair. Then, the forwarding frame 3 rotates to spirally wrap the hair around the heat-conducting cylinder 2.

[0036] In summary, the forwarding frame 3 in the curling iron 100 of the present application adopts a ring structure, and then a single U-shaped forwarding port 31 is opened on the side wall of the forwarding frame 3, so as to ensure that the hair can only be transferred in from the forwarding port 31, avoiding the problem of messy hair, and preventing the hair from being curled again, thereby preventing the hair from getting tangled and stuck.

[0037] Referring to Figures 3 and 4 , the forwarding opening 31 extends to the bottom of the forwarding frame 3. In actual use, the width of the forwarding opening 31 can be set to be uniform, can gradually decrease from top to bottom, or can gradually widen from top to bottom, without limitation. When the width of the forwarding opening 31 gradually decreases from top to bottom, that is, when the opening of the forwarding opening 31 is wide and the closing is narrow, hair will be gathered at the bottom after entering the forwarding opening 31 from the wider opening. When the width of the forwarding opening 31 gradually widens from top to bottom, that is, when the opening is narrow and the closing is wide, the opening of the forwarding opening 31 has the effect of gathering hair.

[0038] Referring to Figure 5 , the inner wall of the forwarding frame 3 is provided with protruding barrier strips 32, which are positioned opposite each other on either side of the forwarding opening 31 and extend along the height of the forwarding frame 3. These barrier strips 32, positioned opposite each other on either side of the forwarding opening 31, act as a barrier for the hair, ensuring that the hair is confined within the forwarding opening 31 and wound around the heat-conducting tube 2 as the forwarding frame 3 rotates.

[0039] The sidewalls of the forwarding frame 3 are formed with transparent areas 33. The transparent areas 33 can be formed by hollowing out the sidewalls or by covering the hollowed-out sidewalls with a transparent material such as glass. The design of the transparent areas 33 saves material and reduces the weight of the forwarding frame 3. At the same time, the condition of the curls inside can be observed through the transparent areas 33.

[0040] The curling iron 100 further includes a housing 4, which is fixedly mounted around the curling frame 3. The housing 4 provides heat insulation, preventing burns caused by overheating of the heat-conducting barrel 2 during curling. Referring to FIG6 , a hair clipping opening 41 is defined on the sidewall of the housing 4. The clipping opening 41 is located at the top of the housing 4 and faces the hair entry slot 21.

[0041] In one embodiment, a side wall of the housing 4 is further provided with an escape opening 42 . The escape opening 42 is located below the clipping opening 41 and is communicated with the clipping opening 41 .

[0042] In the initial state, the hair entry slot 21, the forwarding port 31, and the hair clipping port 41 are arranged relative to each other. The hair clipping port 41 is located on the side of the second hair entry slot of the hair entry slot 21. The lowest point of the hair clipping port 41 is lower than the lowest point of the second hair entry slot. Under the action of gravity, the hair falls into the first hair entry slot, the hair entry slot 21, the second hair entry slot, the forwarding port 31, the hair clipping port 41, and the avoidance port 42 in sequence, allowing the hair to fall naturally. When space permits, the coverage area of ​​the avoidance port 42 can be larger than the coverage area of ​​the hair clipping port 41. In this case, the hair clipping port 41 at the top of the housing 4 is a narrow small entrance, and the avoidance port 42 below the hair clipping port 41 is a large opening. This not only ensures that the hair bundle is locked in place, but also maximizes the space to reveal the curling chamber and the forwarding frame 3 and other structures, allowing direct observation of possible hair clipping hazards. At the same time, the temperature inside the product can be quickly dissipated.

[0043] In one embodiment of the present application, the handle 1 and the housing 4 are integrally formed, eliminating the need for connection between the housing 4 and the handle 1, thereby simplifying the overall structure of the curling iron 100. A limited step is provided at the connection between the handle 1 and the housing 4 to guide the user in gripping the curling iron.

[0044] In conventional curling irons 100, the handle 1 and the heat-conducting tube 2 are often coaxially arranged. This requires the user to hold the curling iron 100 for a long time while curling, which can easily cause arm pain. Therefore, in one embodiment of the present application, the housing 4 is eccentrically arranged relative to the handle 1, with the central axis of the housing 4 offset toward the location of the hair clip 41, and the heat-conducting tube 2 located at the central axis of the housing 4.

[0045] 2 , the forward frame 3 is concentrically arranged with the heat-conducting tube 2, the central axis A-A' of the hand-held handle 1 is not coaxial with the central axis BB' of the heat-conducting tube 2, the heat-insulating tube has an eccentric asymmetric structure relative to the hand-held handle 1, and the central axis BB' of the heat-conducting tube 2 is offset toward the side where the hair clip 41 is located, that is, toward the side where the user's head is located, thereby offsetting the center of gravity of the curling assembly toward the side where the user's head is located, so that the curling iron 100 automatically tilts toward the user's head when lifted, thereby achieving a labor-saving effect and relieving arm soreness.

[0046] Specifically, the diameter of the shell 4 is larger than the diameter of the handle 1, the side of the shell 4 facing away from the card opening 41 is flush with the handle 1, and the side of the shell 4 facing the card opening 41 protrudes from the handle 1 to achieve an eccentric setting of the shell 4 and the handle 1.

[0047] In one embodiment, the hair curler 100 further includes a drive assembly. Referring to FIG7 , the drive assembly includes a motor 51, an internal gear 52, and an external gear 53. The motor 51 is mounted within the handle 1 and is located at the top of the handle 1. The internal gear 52 is sleeved on the motor 51 to rotate with the motor 51. The external gear 53 is mounted at the bottom of the curling frame 3. The internal gear 52 is eccentrically disposed within the external gear 53 and meshes with the external gear 53. Thus, rotation of the motor 51 drives rotation of the internal gear 52, which in turn drives rotation of the external gear 53, which in turn drives rotation of the curling frame 3.

[0048] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A hair curler, comprising: Handle handle; A hair curling assembly, the hair curling assembly includes a heat-conducting tube and a forwarding frame, the heat-conducting tube is convexly arranged on the top of the hand-held handle, a hair entry groove is formed on the top of the heat-conducting tube, the forwarding frame is rotatably installed on the circumference of the heat-conducting tube, the forwarding frame is a closed annular structure, a forwarding port is opened on the side wall of the forwarding frame, the forwarding port is extended along the height direction of the forwarding frame, and when the forwarding frame stops, the forwarding port is arranged opposite to the hair entry groove.

2. The hair curler according to claim 1, wherein: The forwarding port extends vertically to the bottom of the forwarding frame.

3. The hair curler according to claim 2, wherein: The width of the forwarding port gradually shrinks from top to bottom; Alternatively, the width of the forwarding port gradually widens from top to bottom.

4. The hair curler according to claim 2, wherein: The inner wall of the forwarding frame is protruded with a barrier strip, which is relatively arranged on both sides of the forwarding port and extends along the height direction of the forwarding frame.

5. The hair curler according to claim 1, wherein: The side wall of the forwarding frame is formed with a transparent area.

6. A hair curler according to any one of claims 1 to 5, wherein: The hair curler also includes a shell, wherein the shell fixing cover is arranged on the peripheral side of the curling frame, and a hair clipping opening is opened on the side wall of the shell, and the hair clipping opening is located at the top of the shell and is arranged opposite to the hair entry groove.

7. The hair curler according to claim 6, wherein: The side wall of the shell is also provided with an escape opening, which is located below the clip-on opening and is communicated with the clip-on opening.

8. The hair curler according to claim 6, wherein: The shell is eccentrically arranged with respect to the hand-held handle, the central axis of the shell is offset toward the side where the clamping opening is located, and the heat-conducting tube is located at the central axis of the shell.

9. The hair curler according to claim 8, wherein: The diameter of the shell is larger than the diameter of the hand-held handle. The side of the shell facing away from the clip-on opening is flush with the hand-held handle, and the side of the shell facing the clip-on opening is protruding from the hand-held handle.

10. The hair curler according to claim 8, wherein: The hair curler further comprises a driving assembly, wherein the driving assembly comprises: A motor, the motor is installed in the hand-held handle and is located at the top of the hand-held handle; An internal gear, the internal gear being sleeved on the motor to rotate with the motor; The outer gear is mounted on the bottom of the forwarding frame, and the inner gear is eccentrically arranged inside the outer gear and meshes with the outer gear.

Citation Information

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