Rotatable handle of beauty apparatus
The rotary handle with a rotary hinge structure and conductor routing solution addresses limitations in conventional beauty device handles, providing enhanced rotational flexibility and reliability.
Patent Information
- Application Number
- JP2024019042
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-10
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2044-02-10
AI Technical Summary
Conventional beauty device handles are limited in rotation direction and require cumbersome wiring conductor routing, which affects reliability.
A rotary handle with a rotary hinge structure allowing 180-degree rotation in either direction and incorporating a hollow shaft for conductor insertion, featuring a first and second hinge component with a rotation stopper mechanism.
Enhances rotational flexibility and reliability by enabling 180-degree rotation and allows seamless conductor routing within the hinge structure.
Smart Images

Figure 2025123140000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to the technical field of rotary handles for beauty devices, and more particularly to a rotary handle for beauty devices that can be rotated in either the left or right direction and folded, and in which wiring conductors can be inserted inside the rotary hinge structure, improving the reliability of rotation. [Background technology]
[0002] Conventionally, as a technique for rotating the handle of a beauty device, for example, Patent Document 1 below discloses in [Claim 1] a hair care device including a main body housing, a grip housing 5H rotatably attached to a connecting portion of the main body housing, and a moderation mechanism 4 that restricts the rotation of the grip housing 5H relative to the main body housing at each of a use position and a folded position, and the moderation mechanism 4 is provided on the grip housing 5H and includes a ring-shaped first engagement body 20 formed separately from the grip housing 5H, and a locking mechanism 4 that is attached to the connecting portion of the main body housing. and a second engagement body 10 that is provided in a position where the grip housing 5H is movable relative to the first engagement body 20 and engages with the first engagement body 20 in both the use position and the folded position to restrict rotation of the grip housing 5H relative to the main body housing, wherein the second engagement body 10 is formed of a material that is stronger than the connecting portion of the main body housing, and is formed in a ring shape that continuously surrounds the outer periphery of the first engagement body 20, and is formed separately from the connecting portion of the main body housing (for convenience, the symbols described in the publication are used). [Claim 4] discloses a hair care device in which the second engagement body 10 is arranged opposite the outer periphery of the first engagement body 20, and a first convex portion 22 and a second convex portion 12 that can freely climb over each other with pressure contact are provided on the outer periphery of the first engagement body 20 and the opposing portion of the second engagement body 10 with the outer periphery of the first engagement body 20, and the first convex portion 22 and the second convex portion 12 climb over each other with pressure contact, thereby restricting or releasing the restriction on rotation of the grip housing 5H relative to the main body housing. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 5320236 Summary of the Invention [Problem to be solved by the invention]
[0004] As described above, the handle of a hair care device relating to a conventional beauty equipment has a structure in which, as shown in Figure 17, a first protrusion 22 is provided on the first engagement body (rotating ring) 20 of the moderation mechanism 4 having a circular inner shell, and this protrusion 22 moves over the second protrusion 12 of the second engagement body 10, which is a clip ring having a circular outer shell, with a click sensation, and fits into and stays in the recess indicated by the symbol x. In other words, the first protrusion 22 of the first engagement body 20 temporarily remains at the top dead center and bottom dead center (or intermediate dead center) and maintains the dead center, folding the grip housing 5H (handle) that is deployed vertically toward the floor and remaining at a 90° angle position close to the main body housing. In this regard, technology that allows the handle to be rotated 180 degrees in either the left or right direction relative to the axial direction of the main body housing is already known. Furthermore, the wiring conductors connecting the circuit boards within the handle must be routed inside the main body case in a way that avoids the rotary hinge mechanism, which is troublesome and cumbersome, and these are considered to be problems that need to be solved.
[0005] Therefore, the primary object of the present invention is to provide a rotary handle for a rotary hinge structure of a beauty device that can be rotated and folded in either the left or right direction, and a secondary object is to provide a rotary handle for a beauty device that allows wiring conductors to be inserted inside the rotary hinge structure, thereby improving the reliability of rotation. [Means for solving the problem]
[0006] As a means for solving the problem, the invention described in claim 1 is a handle 4 of a beauty tool, which is connected to a vertical part 2 of a main body housing 1 and is rotatable and foldable by a rotary hinge structure 3, The rotary hinge structure 3 provided on the connection surfaces 20, 40 of the vertical portion 2 and the handle 4 comprises a first hinge component 3A fixed to the vertical portion 2 and a second hinge component 3B rotatably fixed to the handle 4, the second hinge component 3B being provided with a shaft portion 35 with a rotation-transmitting portion 36, while the first hinge component 3A is provided with an insertion hole 31 through which the shaft portion 35 is inserted, and a rotation-transmitted stopper 33 is provided on the outer periphery of the insertion hole 31, which can be moved within a predetermined range by the rotation-transmitting portion 36 coming into contact with the outer periphery of the insertion hole 31, and the handle 4 is configured to be rotatable in either the left or right direction S, R to a predetermined position.
[0007] The invention described in claim 2 is a handle 4 of a beauty tool, which is connected to a columnar or cylindrical vertical portion 2 that protrudes vertically from a rod-shaped main body housing 1 and is fixed thereto, and which has the same shape as the columnar or cylindrical vertical portion 2. The handle 4 is rotatable and foldable by a rotary hinge structure 3, (a) the connection surfaces 20, 40 of the vertical portion 2 and the handle 4 are formed as inclined surfaces 20, 40 cut obliquely in the axial direction K, (b) the rotary hinge structure 3 is comprised of a first hinge component 3A fixed to the vertical portion 2 and a second hinge component 3B rotatably fixed to the handle 4, and is provided on the inclined surfaces 20, 40; (c) A shaft portion 35 having a convex rotation-transmitting portion 36 is provided at approximately the center of the second hinge component 3B, while an insertion hole 31 through which the shaft portion 35 is inserted is provided in the first hinge component 3A, and a rotation-transmitted stopper 33 movable within a predetermined range is provided near the outer periphery of the insertion hole 31; (d) By rotating the handle 4, which is arranged linearly with respect to the vertical portion 2, the convex rotation transmitting portion 36 of the rotating cylindrical shaft portion 35 comes into contact with the rotation transmitting stopper 33 and can be stopped at a predetermined position, and the handle 4 can be folded while rotating to a predetermined position in either the left or right direction S or R. The rotary handle of the beauty device is characterized by the above.
[0008] In the invention described in claim 3, the shaft portion 35 of the second hinge structure 3B is configured as a rotating cylindrical shaft portion 35, and is formed into a hollow portion 38 that is hollowly penetrated therethrough, A conductor 50 to be wired is inserted into the hollow portion 38. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0009] The invention described in claim 4 is such that the connection surfaces 20, 40 of the vertical portion 2 and the handle 4 are formed as inclined surfaces 20, 40 cut at an angle of 45° to the axial direction K, and the handle 4 can be rotated up to 180° in either the left or right direction S, R, When the handle 4 is rotated 180° and folded, the main body housing 1 and the handle 4 are arranged parallel to each other. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0010] The invention described in claim 5 is such that the rotation transmitting portion 36 abuts against the end portion 33a of the rotation transmitting stopper 33, and the handle 4 stops at an angle of 180° to either the left or right, and a curved groove portion 34 that restricts movement of the rotation transmitting stopper 33 is formed in the first hinge constituent body 3A of the rotary hinge structure 3. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0011] The invention described in claim 6 is such that the rotation angle of the handle 4 can be changed by changing the size, shape and movable range of the rotation-transmitted stopper 33. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0012] The invention described in claim 7 is such that the second hinge component 3B of the rotary hinge structure 3 is provided with a convex portion 37 biased by an elastic member 39, and the first hinge component 3A is provided with a concave portion 32 into which the convex portion 37 fits, When the handle 4 is rotated to the left S or right R, the rotation transmitting portion 36 comes into contact with the rotation transmitted stopper 33 and moves, and then the convex portion 37 fits into the concave portion 32, thereby restricting further rotation of the handle 4. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0013] The invention described in claim 8 is characterized in that the shaft portion 35 of the second hinge structure 3B is made of plastic, The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0014] The invention described in claim 9 is characterized in that the rotation-transmitted stopper 33 of the first hinge structure 3A is made of metal, plastic, or rubber resin. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0015] The invention described in claim 10 is characterized in that the second hinge structure 3B of the rotary hinge structure 3 is fixed to the vertical portion 2 of the main body housing 1, and the first hinge structure 3A is rotatably fixed to the handle 4, The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above.
[0016] The invention described in claim 11 is applicable to a thermal beauty device such as a hair dryer 6, a hair iron, or a hair brush, in which the main body housing 1 is formed in a rod shape, an electric skin care beauty device, or an electric massage beauty device. The rotary handle of the beauty device according to claim 1 or 2 is characterized by the above. [Effects of the Invention]
[0017] The rotary handle of the beauty device of the present invention has a rotary hinge structure provided on the connection surface between the vertical part and the handle, which is composed of a first hinge component (or a second hinge component) fixed to the vertical part, and a second hinge component (or a first hinge component) fixed to the handle so as to be freely rotatable, the second hinge component is provided with a shaft component with a rotation transmission component, the first hinge component is provided with an insertion hole through which the shaft component is inserted, and a rotation transmission stopper is provided on the outer periphery of the first hinge component that can move within a predetermined range when the rotation transmission component abuts against it, so that the handle can be rotated in either the left or right direction and folded with great flexibility. Furthermore, the interior of the second hinge structure, including the shaft portion, is formed as a hollow portion that penetrates through the center, so that wiring conductors can be inserted into the hollow portion of the second hinge structure of the rotating hinge, thereby improving the reliability of rotation. [Brief explanation of the drawings]
[0018] [Figure 1] 1 is an exploded perspective view showing a rotary hinge structure of a rotary handle of the beauty device of the first embodiment. FIG. [Figure 2] FIG. 1A is a perspective view showing the installation method of the rotary hinge structure, and FIG. 1B is a perspective view showing the same as FIG. 1A, but with a slightly different angle. [Figure 3] FIG. 1A is a perspective view showing the structure of the vertical portion of the rotary hinge structure from below, and FIG. 1B is a perspective view showing the internal structure of the rotary hinge structure. [Figure 4] FIG. 1A is a perspective view showing a rotary hinge structure, and FIG. 1B is a perspective view showing a mounting method of the rotary hinge structure from the side. [Figure 5] 1A and 1B are perspective views showing how to attach a rotation-transmitted stopper to a groove in a rotary hinge structure, and 1C and 1D are perspective views partially showing a second hinge structure of the rotary hinge structure. [Figure 6]FIG. 1A is a perspective view showing the convex rotation transmitting part rotating to the right when the handle is rotated to the right and coming into contact with the rotation transmitting stopper, thereby remaining stationary at 180°; FIG. 1B is a perspective view showing the convex rotation transmitting part rotating to the left when the handle is rotated to the left and coming into contact with the rotation transmitting stopper, thereby remaining stationary at 180°. [Figure 7] FIG. 10 is an explanatory diagram showing a state in which a wiring conductor is inserted into the rotary hinge structure. [Figure 8] 1A to 1E are front views showing the handle perpendicular to the vertical portion of the main body housing from different angles. [Figure 9] AF are explanatory diagrams showing left and right rotation states of the steering wheel. [Figure 10] A is a front view of the beauty device with the rotary handle in a vertical position, B is a front view of the handle in a rotated position, and C is a front view of the handle in a folded position after being rotated 180 degrees. [Figure 11] FIG. 10 is an exploded perspective view showing the rotary hinge structure at the connection surface between the vertical portion and the handle. [Figure 12] 10A to 10C are enlarged perspective views showing a groove and a rotation-transmitted stopper in a first hinge assembly of a rotary hinge structure. [Figure 13] 10A and 10B are enlarged perspective views showing the main structure of the second hinge structure of the rotary hinge structure. [Figure 14] 1A and 1B are a front view and a perspective view showing the main part of the rotary hinge structure with some parts omitted. [Figure 15] A and B are two perspective views showing the rotary hinge structure from below. [Figure 16] FIG. 10 is an exploded perspective view showing a rotary hinge structure of a rotary handle of a different beauty device according to a second embodiment. [Figure 17] FIG. 1 is an explanatory diagram showing a conventional rotary hinge structure. BEST MODE FOR CARRYING OUT THE INVENTION
[0019] A preferred embodiment of the rotary handle of the beauty device of the present invention will be described below with reference to the drawings. This rotary handle is configured such that a handle 4 connected to a vertical portion 2 of a main body housing 1 of a beauty tool such as a hair dryer 6 as shown in simplified form in FIG. 10 can be rotated 180° from either the left or right direction by a rotary hinge structure 3 as shown in FIG. 9 and can be folded freely. It is suitable for use in thermal beauty devices in which the main body housing 1 is formed in a rod shape, and the following describes an example in which it is applied to a hair dryer 6, but it can also be applied to beauty devices such as hair irons and hair brushes, which will not be described, as well as electric skin care beauty devices and electric massage beauty devices.
[0020] <First Example> The rotary handle of the beauty device according to this embodiment has an outline in which a handle 4 is rotatably connected to a vertical portion 2 of a rod-shaped main body housing 1, which forms the core of a typical hair dryer 6 (FIG. 10). A rotary hinge structure 3 provided at connection surfaces 20, 40 between the vertical portion 2 and the handle 4 is made up of a first hinge component 3A fixed to the vertical portion 2 and a second hinge component 3B rotatably fixed to the handle 4 (FIG. 2). The second hinge component 3B is provided with a shaft portion 35 with a rotation transmitting portion 36, while the first hinge component 3A is provided with an insertion hole 31 through which the shaft portion 35 is inserted, and a rotation transmitting stopper 33 is provided on the outer periphery of the insertion hole 31, which the rotation transmitting portion 36 abuts against and which can move within a predetermined range, so that the handle 4 is rotatable in either the left or right direction S or R to a predetermined position (FIGS. 1 to 9).
[0021] The interior of second hinge assembly 3B, including the shaft portion, is formed with hollow portion 36 that penetrates the center, and conductor 50 that connects base 41 on the handle 4 side and base 21 on the vertical portion 2 side is inserted into hollow portion 38 of second hinge assembly 3B (FIG. 7). When this wiring conductor 50 is inserted into second hinge assembly 3B, if handle 4 is rotated 180° or more (up to 360°) in either direction S or R to the left or right, conductor 50 may be twisted, so it is preferable to set it so that rotation is limited to 180°.
[0022] The handle 4 of this hair dryer 6 is cylindrically shaped, with the same shape as the cylindrical vertical portion 2 that protrudes perpendicularly from and is fixed to the rod-shaped main body housing 1. The handle 4 and vertical portion 2 are each formed by joining two halves (see FIG. 11). The connecting surfaces 20, 40 of the vertical portion 2 and the handle 4 are each formed on an inclined surface cut at an angle of 45° in the axial direction K (see FIGS. 1, 2, 7, and 11). Therefore, as shown in FIG. 9, the rotary hinge structure 3 described below allows the handle 4 to rotate up to 180° diagonally in the left direction S and also in the right direction R. When the handle 4 is rotated 180° and folded, the main body housing 1 and the handle 4 are arranged parallel to each other (FIG. 10C). When the vertical portion 2 is formed in a cylindrical shape, the handle 4 is also preferably formed in a cylindrical shape of the same shape.
[0023] The rotary hinge structure 3 shown in FIGS. 1 to 7 and 11 to 15 will be described. The rotary hinge structure 3 shown enlarged in Figures 4A, 14 and 15 is composed of a first hinge component 3A fixed to the vertical portion 2 side of the main body housing 1 and a second hinge component 3B rotatably fixed to the handle 4 side, and is provided on the inclined surface 20 of the vertical portion 2 and on the handle 40 (see Figure 11).
[0024] 1, which is easy to understand, the second hinge component 3B of the rotary hinge structure 3 is a combination of a rotary plate 30b having a rotary cylindrical shaft 35 at its center from which a convex rotation transmission part 36 protruding obliquely upward is provided, and two cylindrical parts 30b' that receive two bullet-shaped convex parts 37 are provided at positions 180° opposite each other below the rotary cylindrical shaft 35 and sandwiching the rotary cylindrical shaft 35, and a base plate 30a to which the convex parts 37 are biased by springs serving as elastic members 39 and fastened with screws. A through-hole 30a' through which a wiring conductor 50 is inserted is drilled in the center of the base plate 30a (see FIG. 7). The second hinge component 3B is fixedly attached to an opening center part 41 of a sloping, flat connection surface 40 of the handle 4. The first hinge component 3A is provided with a fixed plate 30c having a through-hole 31 at its center through which the rotation cylindrical shaft portion 35 is inserted, and two recesses 32 into which the bullet-shaped protrusions 37 fit, located 180° apart on either side of the central through-hole 31, and a rotation-transmitted stopper 33 is provided on the upper surface of the first hinge component 3A. An upper block 34' having a curved groove 34 is fixed to the upper surface of the fixed plate 30c, and the rotation-transmitted stopper 33 is configured to be movable within the curved groove 34 within a range in which its both ends 33a abut and its movement is restricted (see FIG. 12). The first hinge component 3A having the above-described configuration is fixedly attached to the opening center 21 of the inclined, flat connecting surface 20 of the vertical portion 2 of the main body housing 1.
[0025] Therefore, when the handle 4 is rotated to the left S or right R, the rotation transmitting part 36 comes into contact with the rotation transmitted stopper 33 and moves, and then the bullet-shaped convex part 37 biased by the elastic member 39 fits into the concave part 32, stopping the handle 4 at a rotation angle of 180° and restricting further rotation of the handle 4 in the same direction. At this time, the loaded elastic member 39 smoothly controls the movement of the rotation transmitted stopper 33, which comes into contact with and moves with the rotation transmitting part 36 of the second hinge component 3B.
[0026] A plastic rotating cylindrical shaft portion 35 having a convex rotation transmitting portion 36 provided on the outer periphery thereof is provided approximately in the center of the second hinge component 3B. On the other hand, an insertion hole 31 through which the rotating cylindrical shaft portion 35 is inserted is provided in the first hinge component 3A. The rotation transmitting portion 36 is arranged to abut against the end portion 33a of the rotation transmitting stopper 33, stopping the handle 4 at an angle of 180° to either the left or right, and a curved groove portion 34 that restricts the movement of the rotation transmitting stopper 33 is formed in the first hinge component 3A of the rotary hinge structure 3. A rotation-transmitted stopper 33 that is movable within a predetermined range is provided near the outer periphery of the insertion hole 31 of the first hinge component 3A. This rotation-transmitted stopper 33 is made of metal, plastic, or rubber resin. The rotation receiving stopper 33 can change the size, shape and movable area thereof to change the rotation angle of the handle 4, which will be described later.
[0027] 12, is fixed to the upper surface of the fixed plate 30c at the outer periphery of the rotating cylindrical shaft 35 inserted into the through-hole 31. The curved groove 34 is formed along the outer periphery of the rotating cylindrical shaft 35 so as to form an opening angle of about 120° around the rotating cylindrical shaft 35. The rotation-transmitting stopper 33 inside the curved groove portion 34 is set to be movable within the curved groove portion 34 at a position opposite the convex rotation-transmitting portion 36 across the rotating cylindrical shaft portion 35.
[0028] Therefore, by rotating the handle 4, which is linearly arranged relative to the vertical portion 2 as shown in Fig. 10A, in the left direction S, the convex rotation-transmitting portion 36 of the rotating cylindrical shaft portion 30 comes into contact with one end 33a of the rotation-transmitted stopper 33, and the other end 33a of the rotation-transmitted stopper 33 is stopped at the end position of the curved groove portion 34 (Fig. 6B). At this time, the rotated handle 4 traces a trajectory as shown on the left side of Fig. 9 (symbols A → B → C → D → E in the figure) and is folded and stopped at a position rotated 180° left (see Fig. 10). Similarly, when the handle 4, which is linearly arranged relative to the vertical portion 2 as shown in Fig. 10A, is rotated in the right direction R, the convex rotation-transmitting portion 36 of the rotating cylindrical shaft portion 30 comes into contact with one end 33a of the rotation-transmitted stopper 33, and the other end 33a of the rotation-transmitted stopper 33 is stopped at the end position of the curved groove portion 34 (Fig. 6A). At this time, the rotated handle 4 traces a trajectory (symbols A → F → E in Fig. 9) as shown partially in the right-hand side of Fig. 9, and is folded and stopped at a position rotated 180° to the right (see Fig. 10). Thus, the handle 4 can be rotated from the top dead center to the bottom dead center by the interference of the movable rotation transmission stopper 33, which is located at an angle of 180° to the convex rotation transmission part 36 of the rotating cylindrical shaft part 35, and is configured to be folded to a predetermined position while rotating diagonally in either the left or right direction S, R relative to the axial direction K of the main body housing 1.
[0029] <Second Example> In this embodiment shown in Figure 16, the second hinge component 3B of the rotary hinge structure 3 of the first embodiment described above is fixed to the vertical portion 2' of the main body housing 1, and the first hinge component 3A is rotatably fixed to the handle 4', so that the handle 4 can be rotated in either the left or right direction for folding, similar to the first embodiment described above. That is, this embodiment can also be preferably implemented by attaching the second hinge component 3B described above to the central opening 21' of the inclined connection surface 20' of the vertical portion 2' as shown in Figure 16, and attaching the first hinge component 3A to the central opening 41' of the inclined connection surface 40' of the handle 4', so that the handle 4' can be rotated in either the left or right direction for folding. Of course, the wiring conductor 50 can be inserted into the hollow portion 38 of the second hinge structure fixed to the vertical portion 2, thereby improving the reliability of rotation. The configurations of the first hinge component 3A and the second hinge component 3B are the same as those in the first embodiment, and therefore a description thereof will be omitted.
[0030] Although the embodiments have been described above based on the drawings, it should be noted that the present invention is not limited to the illustrated examples and includes the range of design modifications and application variations that would normally be made by a person skilled in the art, provided that they do not deviate from the technical concept of the present invention. [Explanation of symbols]
[0031] 1 Main housing 2 Vertical section 20 Connection surface (inclined surface) 3 Rotating hinge structure 3A First hinge assembly 31 Insertion hole 32 recess 33 Rotation transmission stopper 33a end 34 Curved groove 3B Second hinge structure 35 (rotating cylinder) shaft 36 Convex rotation transmission part 37 Convex part 38 Hollow part 39 Elastic member 4 Handle 40 Connection surface (inclined surface) 50 Conductors 6. Hair dryer K axis direction S left direction R Right
Claims
1. A handle of a beauty tool, the handle being connected to a vertical portion of a main body housing and being rotatable and foldable by a rotary hinge structure, the rotary hinge structure provided at the connection surface between the vertical portion and the handle comprises a first hinge component fixed to the vertical portion and a second hinge component rotatably fixed to the handle, the second hinge component is provided with a shaft component with a rotation transmitting component, while the first hinge component is provided with an insertion hole through which the shaft component is inserted, and a rotation transmitting stopper is provided on the outer periphery of the insertion hole that can be moved within a predetermined range when the rotation transmitting component abuts against it, and the handle is configured to be rotatable in either the left or right direction to a predetermined position.
2. A handle of a beauty tool, in which a cylindrical or columnar vertical portion is fixed to a rod-shaped main body housing and protrudes perpendicularly from the main body housing, and the handle is connected to the cylindrical or columnar vertical portion and is rotatable and foldable by a rotary hinge structure, (a) the connection surfaces of the vertical portion and the handle are each formed as an inclined surface cut obliquely in the axial direction; (b) the rotary hinge structure is provided on the inclined surface and includes a first hinge structure fixed to the vertical portion and a second hinge structure rotatably fixed to the handle; (c) a shaft portion provided with a convex rotation transmitting portion is provided at approximately the center of the second hinge component, while an insertion hole through which the shaft portion is inserted is provided in the first hinge component, and a rotation transmitting stopper movable within a predetermined range is provided near the outer periphery of the insertion hole; (d) By rotating the handle, which is arranged linearly with respect to the vertical portion, the convex rotation transmitting portion of the shaft portion comes into contact with the rotation transmitting stopper and can be stopped at a predetermined position, and the handle can be folded while rotating to a predetermined position in either the left or right direction. A rotary handle of a beauty device characterized by the above.
3. the shaft portion of the second hinge structure is configured as a rotating cylindrical shaft portion and is formed into a hollow portion that penetrates the inside thereof; A conductor to be wired is inserted into the hollow portion. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
4. The connection surface between the vertical portion and the handle is formed as an inclined surface cut at an angle of 45° to the axial direction, so that the handle can be rotated up to 180° in either the left or right direction; When the handle is rotated 180° and folded, the main body housing and the handle are arranged parallel to each other. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
5. The rotation transmitting portion is arranged to abut against an end of the rotation transmitting stopper to stop the handle at an angle of 180° to either the left or right, and a curved groove portion that restricts movement of the rotation transmitting stopper is formed in the first hinge component of the rotary hinge structure. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
6. The rotation angle of the handle can be changed by changing the size, shape, and movable range of the rotation-transmitted stopper. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
7. the second hinge structure of the rotary hinge structure is provided with a convex portion biased by an elastic member, and the first hinge structure is provided with a concave portion into which the convex portion fits, When the handle is rotated left or right, the rotation transmitting portion abuts against the rotation transmitting stopper and moves, and then the convex portion fits into the concave portion to restrict further rotation of the handle. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
8. the shaft portion of the second hinge structure is made of plastic; The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
9. the rotation-transmitted stopper of the first hinge structure is made of metal, plastic, or rubber resin; The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
10. the second hinge structure of the rotary hinge structure is fixed to a vertical portion of the main body housing, and the first hinge structure is rotatably fixed to the handle; The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
11. The main body housing is formed in a rod shape and is applicable to thermal beauty appliances such as hair dryers, hair irons, and hair brushes, as well as electric skin care and beauty appliances and electric massage beauty appliances. The rotary handle of the beauty device according to claim 1 or 2, characterized in that:
Citation Information
Patent Citations
Hair dryer
JP1978143454A
door mirror structure
JP1990129941U
Angle changeover device
JP2000120654A
Hinge device and electronic apparatus using the same
JP2004197862A
Hair dryer
JP2023118324A