JP2015073841A - Hair iron - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair iron in which a hair pressing plate as well as an upper pipe does not open even in a state that an operation lever is pressed down in non-use of the hair iron to improve storability and compactness.SOLUTION: A hair iron A is configured as follows. Only a hair pressing plate opens to an upper pipe without opening of the upper pipe to a lower pipe when pressing down a lever part of an operation lever, in a first changeover position (a) of a changeover shaft 50; the lever part of the operation lever can be pressed down without opening of the lower pipe, the upper pipe and the hair pressing plate, in a second changeover position (b) of the changeover shaft 50; and the upper pipe and the hair pressing plate interlockingly open to the lower pipe when pressing down the lever part of the operation lever, in a third changeover position (c) of the changeover shaft 50.

Description

  The present invention relates to a hair iron, and more particularly, to a hair iron having a curling function for curling hair and a straight function for stretching curled hair.

  Conventionally, the hair iron shown by the following patent document 1 is known. That is, the hair iron shown in Patent Document 1 is composed of a grip and an iron part, and is elongated with respect to the lower and upper barrels that can swing so that one can be separated from and attached to the other, and the upper barrel. The lower barrel and the upper barrel each have a swaying clip plate so that the joint surfaces of the lower barrel and the upper barrel exhibit a slater function for straightening hair in cooperation with the lower barrel. And the outer peripheral surface of each of the upper barrel and the upper barrel is a curling iron that cooperates to curl the hair, and the upper barrel and the clip plate are the rear part of each, and the rear barrel of the lower barrel is a support shaft. The lower barrel, the upper barrel, and the rear portion of the clip plate are stored at the tip of the grip. A switching mechanism configured using a rear portion of the lower barrel, the upper barrel, and the clip plate, and a curling function that allows the clip plate to be opened with respect to the upper barrel and the lower barrel. A switching mechanism for switching between a setting position and a storator function setting position that allows the upper barrel to open with the clip plate relative to the lower barrel, and a protrusion protruding from the hair iron on the clip plate And when the switching mechanism is set to the curl function setting position, the clip lever is rotated in a predetermined direction to move the clip plate to the upper barrel and the lower barrel. When the switching mechanism is set to the strator function setting position, the operation lever is rotated in the predetermined direction. The upper barrel is opened with respect to the lower barrel together with the clip plate, the rear part of the lower barrel is fixed to the grip, and the switching mechanism is provided at the rear part of the lower barrel. Long holes extending in the vertical direction, round holes provided in the rear part of the upper barrel, long holes extending in the vertical direction provided in the rear part of the clip plate, long holes in the rear part of the lower barrel and the rear part of the upper barrel And a pair of push buttons arranged in an opening provided opposite to the wall forming the grip, and a switching shaft extending laterally through the long hole in the rear portion of the clip plate and the clip plate, The switching shaft and the pair of push buttons are arranged in a straight line, both ends of the switching shaft are in contact with the inside of the pair of push buttons, and by pushing one of the pair of push buttons, Move the switching shaft in one axial direction and set it to one of the curl function setting position and the strator function setting position, and push the other push button to move the switching shaft in the other axial direction. Thus, the curl function setting position and the strator function setting position are set to the other one.

Japanese Patent No. 5114139

  However, in the hair iron shown in Patent Document 1, the operation lever protrudes from the hair iron and is formed on the clip plate. At the curl function setting position, the clip plate opens with respect to the upper barrel by pushing down the operation lever. In the strator function setting position, the clip plate is opened with respect to the lower barrel together with the upper barrel by depressing the operation lever. Therefore, if the operation lever is depressed, at least the clip plate opens. In order to make the clip plate closed in order to make it compact when not in use, the operation lever protruding from the hair iron cannot be pushed down, so the storage property is poor and the compactness is inferior when carried. There are drawbacks.

  Therefore, in view of the above problems, the present inventor does not open the hair holding plate as well as the upper pipe even when the operation lever protruding from the hair iron is pushed down when the hair iron is not used, and the storage property and compactness are improved. An improved hair iron was developed.

  A hair iron according to claim 1 of the present invention is a hair iron that incorporates an electric heater and applies heat to hair, and is a hair that sandwiches hair by being connected to at least a rod-shaped gripping portion and one end of the gripping portion. The hair holding part is composed of at least a lower pipe, an upper pipe, a hair pressing plate, an operation lever and a switching shaft. The lower pipe has a lower semicircular cross section, and the upper pipe is a lower pipe. It is located on a flat surface and has an upper semicircular shape with a flat surface that can be opened and closed with respect to the flat surface of the lower pipe, and the hair pressing plate is located on the upper semicircular surface of the upper pipe. The upper semicircular shape along the upper semicircular surface of the upper pipe is openable and closable with respect to the upper semicircular surface of the upper pipe. , Push down the lever part and push it up by urging force Thus, by opening and closing the upper pipe and the holding plate, the switching shaft can be switched to at least the first switching position, the second switching position, and the third switching position by displacing, and in the first switching position, When the lever part of the operation lever is pushed down, the upper pipe does not open with respect to the lower pipe, only the hair pressing plate opens with respect to the upper pipe. At the second switching position, the lower pipe, the upper pipe and the hair pressing plate are respectively It is possible to push down the lever part of the operating lever without opening it, and in the third switching position, when the lever part of the operating lever is pushed down, the upper pipe and the hair pressure plate open to the lower pipe. It is characterized by.

  Moreover, the hair iron according to claim 2 of the present invention is the hair iron according to claim 1, wherein the switching shaft has a rod shape and has a cross section having a diameter shorter than a square section and an inscribed circle of the cross section square section. A switching action portion composed of a circular portion and projecting portions at both ends thereof, and at least a first switching position, a second switching position, and a third by sliding the switching shaft in the axial direction and displacing the switching shaft. The lower pipe is switchable to the switching position, and the lower pipe is formed in a direction perpendicular to the lower pipe on the gripping portion mounting side, receives the protruding portion of the switching shaft, and does not rotate regardless of the rotation of the switching shaft. A lower pipe base material having a circular bearing portion is provided, and the upper pipe is formed in a direction perpendicular to the upper pipe on the gripping portion mounting side, receives a switching action portion of the switching shaft, and has a square cross section of the switching shaft. A pair of angular bearings that rotate together with the rotation of the part A first switching bearing portion and a second switching member that are formed in a direction perpendicular to the hair pressing plate on the gripping portion mounting side and receive a switching action portion of the switching shaft. A hair holding plate base material having a bearing portion, and the first switching bearing portion is a circle that does not rotate regardless of the rotation of the square section of the switching shaft and the square section of the switching shaft. The second switching bearing portion is a circular shape that does not rotate regardless of the rotation of the switching shaft, and a rotor is disposed between the first switching bearing portion and the second switching bearing portion, The rotor includes a rectangular bearing portion that receives a rectangular section of the switching shaft and includes a mechanism that rotates the rotor by depressing the lever portion of the operating lever. The operating lever includes a switching shaft mounting side end of the operating lever. Formed in the direction perpendicular to the control lever. The switch shaft includes a pair of circular bearings that receive the protruding portion of the switching shaft and do not rotate regardless of the rotation of the switching shaft. 1 is located in the angular portion of the switching bearing, the circular section of the switching shaft is located in the angular bearing portion of the upper pipe base material, and the second switching position of the switching shaft is the sectional circular portion of the switching shaft. Located on the square bearing portion of the upper pipe base material, the circular shape portion of the first switching bearing portion of the hair pressure plate base material, and the second switching bearing portion, the third switching position of the switching shaft is the square section of the switching shaft Is configured so as to be positioned in a rectangular bearing portion of the upper pipe base material.

  Furthermore, the hair iron according to claim 3 of the present invention is the hair iron according to claim 1 or 2, wherein the switching shaft is energized to the electric heater at the first switching position and the third switching position. It is characterized by being provided with an energization switching function for interrupting energization to the electric heater at the second switching position.

  Furthermore, the hair iron according to claim 4 of the present invention is the hair iron according to claim 3, wherein an energization switching function for interrupting energization to the electric heater is provided with a connecting member on the switching shaft, and the connecting member At the first and third switching positions of the switching shaft, the micro switch is turned on to energize the electric heater, and at the second switching position of the switching shaft, the micro switch is turned off and The heater is configured to be cut off from energization.

  The square section of the switching shaft means that the cross section includes not only a square but also a polygon. The circular section of the switching shaft means that the cross section includes not only a circular shape but also a partial shape of a circle such as a fan shape.

  Since the hair iron according to the present invention is configured as described above, at the second switching position of the switching shaft, the lower pipe, the upper pipe, and the hair pressing plate do not open, but project so as to be pushed down easily. Since the lever portion of the operating lever can be pushed down, the storage property and compactness can be improved when the hair iron is not used.

  In addition, since the electric heater is deenergized at the second switching position of the switching shaft, the electric heater can be used when the hair holding portion is housed in the cover together with the operation lever while the lever portion of the operation lever is depressed. Since the hair iron is not heated, the safety is improved.

It is a side view of the hair iron which concerns on the Example of this invention. It is a side view which shows the state accommodated in the cover of the hair iron which concerns on the Example of this invention. It is a hair iron which concerns on the Example of this invention, Comprising: In the 1st switching position of a switching shaft, it is a perspective view which shows the state which pushed down the lever part of the operation lever and opened the hair pressing board and the upper pipe. It is a hair iron which concerns on the Example of this invention, Comprising: It is a perspective view which shows the state which pushed down the lever part of the operating lever in the 2nd switching position of a switching shaft. It is a hair iron which concerns on the Example of this invention, Comprising: In the 3rd switching position of a switching shaft, it is a perspective view which shows the state which pushed down the lever part of the operating lever and opened only the hair pressing board. 1 is a hair iron according to an embodiment of the present invention, and shows a connection structure between a lower pipe and a lower pipe base, in which (a) is an assembled perspective view and (b) is an exploded perspective view. . BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a hair iron according to an embodiment of the present invention, and shows a connection structure between an upper pipe and an upper pipe substrate, wherein (a) is an assembled perspective view and (b) is an exploded perspective view. (C) is the perspective view which looked at the upper pipe base material from the downward direction. 1 is a hair iron according to an embodiment of the present invention, and shows a connection structure between a hair pressing plate and a hair pressing plate substrate, wherein (a) is an assembled perspective view, and (b) is an exploded perspective view. (C) is the perspective view which looked at the hair pressure board base material from the upper right side, and (d) in the figure is the perspective view which looked at the hair pressure board base material from the downward | lower direction. It is a hair iron which concerns on the Example of this invention, Comprising: The connection structure of a hair pressing board base material and a stator is shown, (a) is an assembly perspective view, (b) is an exploded perspective view in the figure. is there. FIG. 9A shows a connection structure between the assembly of FIG. 9A and a switching shaft provided with a connection member of a microswitch, where FIG. 9A is an assembly perspective view, and FIG. 9B is an exploded perspective view. . FIG. 10A shows a state in which a microswitch is attached to the assembly of FIG. 10A, in which FIG. 10A is a perspective view seen from the lower side, and FIG. 10B is a perspective view seen from the upper side. FIG. 10A shows a connection structure between the assembly of FIG. 10A and the lower pipe base, in which FIG. 10A is an assembly perspective view, and FIG. 10B is an exploded perspective view. FIG. 12A shows a connection structure between the assembly of FIG. 12A and the upper pipe base, wherein FIG. 12A is an assembly perspective view, and FIG. 12B is an exploded perspective view. FIG. 13A shows a connection structure between the assembly and the operation lever in FIG. 13A, where FIG. 13A is an assembly perspective view, and FIG. 13B is an exploded perspective view. BRIEF DESCRIPTION OF THE DRAWINGS It is the hair iron which concerns on the Example of this invention, Comprising: It is a schematic diagram which shows the positional relationship of a switching shaft, an upper pipe base, a hair pressing base, and a rotor by sliding a switching shaft, (a) Indicates the first switching position, (b) in the figure indicates the second switching position, and (c) in the figure indicates the third switching position.

  Now, preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.

  A shown in FIGS. 1-5 is a hair iron, and the hair iron A is comprised from the holding part A1 and the hair clamping part A2. The gripping part A1 has a rod shape and is a part that is grasped by hand when the hair iron A is used. Although not shown in FIGS. 1 and 2, the gripping part A <b> 1 contains a rechargeable battery, and can be charged by connecting a power cord (not shown). Therefore, compared with the conventional hair iron to which the power cord is always connected, it is cordless, so that the operability is good, and it is compact and convenient to carry. The battery type has the same effect. However, the present invention can be implemented even in a type in which the power cord is always connected. The hair holding part A2 is connected to the left end side of the gripping part A1 in FIGS. 1 and 2, and has a function of holding the hair, and an electric heater (not shown) is built in and connected from the rechargeable battery. The wiring to be passed through the gripping part is connected to the electric heater.

  The hair holding part A2 includes a lower pipe 10, an upper pipe 20, a hair pressing plate 30, an operation lever 40, and a switching shaft 50. When the hair iron A is not in use, as shown in FIG. 1, the lower pipe 10, the upper pipe 20, and the hair pressing plate 30 in the hair holding portion A2 are closed, and the lever portion 41 of the operation lever 40 is pushed up. . The lever portion 41 can be pushed down with the lower pipe 10, the upper pipe 20 and the hair pressing plate 30 closed by the structure described later (FIG. 15B). B can be stored in a compact form.

  That is, when the hair iron A depresses the lever portion 41 of the operation lever 40, as shown in FIG. 3, the first switching position in which the upper pipe 20 and the hair pressing plate 30 are opened with respect to the lower pipe 10 is shown in FIG. As shown in FIG. 5, the upper pipe 20 and the hair pressure plate 30 are closed with respect to the lower pipe 10 without being opened, and the upper pipe 20 is in relation to the lower pipe 10 as shown in FIG. A third switching position in which only the hair pressing plate 30 is opened with respect to the upper pipe 20 without being opened can be switched using the switching shaft 50.

  As shown in FIG. 6, the lower pipe 10 is a hollow pipe having a lower semicircular cross section in which the upper surface is a flat surface 11 and the lower surface is a lower semicircular surface 12, and an electric heater (not shown) is incorporated therein. Yes. And the lower pipe base material 13 is attached to the holding part attachment side of the lower pipe 10 by screwing. The lower pipe base 13 is formed with a pair of lower semicircular bearing portions 14 in a direction perpendicular to the lower pipe 10, and receives and supports the protrusion 52 of the switching shaft 50 described later (FIG. 12). It is like that. The protrusion 52 has a columnar shape and is configured to be rotatable with respect to the lower semicircular bearing portion 14, so that even if the switching shaft 50 rotates with respect to the lower semicircular bearing portion 14, the lower half The circular bearing portion 14, that is, the lower pipe base 13 on which the lower semicircular bearing 14 is formed and the lower pipe 10 connected to the lower pipe base 13 are prevented from rotating.

  As shown in FIG. 7, the upper pipe 20 is located on the flat surface 11 of the lower pipe 10 and has a flat surface 21 that can be opened and closed with respect to the flat surface 11 of the lower pipe 10. A hollow pipe having a semicircular shape in cross section, which is a semicircular circumferential surface 22, and an electric heater (not shown) is incorporated therein. And the upper pipe base material 23 is attached to the holding part attachment side of the upper pipe 20 by screwing. The upper pipe base 23 is formed with a pair of square bearing portions 24 in a direction perpendicular to the upper pipe 20, and receives a switching action portion 51 of the switching shaft 50 described later (FIGS. 10 and 13). It comes to support. The switching action portion 51 is formed of a cross-sectional square portion 51a and a cross-sectional circular portion 51b. When the cross-sectional square portion 51a of the switching shaft 50 is positioned at the square-shaped bearing portion 24, an angle is generated when the switching shaft 50 rotates. The shape bearing portion 24, that is, the upper pipe base 23 on which the square bearing portion 24 is formed and the upper pipe 20 connected to the upper pipe base 23 are rotated. On the other hand, when the cross-section circular portion 51b of the switching shaft 50 is positioned at the angular bearing portion 24, the angular bearing portion 24, that is, the angular bearing portion, even if the switching shaft 50 rotates relative to the angular bearing portion 24. The upper pipe base 23 formed with 24 and the upper pipe 20 connected to the upper pipe base 23 are prevented from rotating.

  As shown in FIG. 8, the hair pressing plate 30 is positioned on the upper semicircular surface 22 of the upper pipe 20 and has an upper semicircular shape along the upper semicircular surface 22 of the upper pipe 20. The upper pipe 20 is configured to be openable and closable with respect to the upper semicircular surface 22.

  The hair pressing plate 30 has a hair pressing plate base 33 attached to the gripping portion mounting side thereof by screws. The hair pressing plate base material 33 is formed with a first switching bearing portion 34 and a second switching bearing portion 35 in a direction orthogonal to the hair pressing plate 30, and switching of the switching shaft 50 described later (FIG. 10). The action part 51 is received and supported. The switching action part 51 is formed of a cross-sectional square part 51a and a cross-sectional circular part 51b, and the first switching bearing part 34 is switched to a square-shaped part 34a that rotates with the rotation of the cross-sectional square part 51a of the switching shaft 50. The second switching bearing portion 35 has a circular shape that does not rotate regardless of the rotation of the switching shaft 50. The second switching bearing portion 35 includes a circular portion 34 b that does not rotate regardless of the rotation of the square section 51 a of the shaft 50. That is, when the cross-sectional square portion 51a of the switching shaft 50 is positioned at the rectangular portion 34a of the first switching bearing portion 34, the first switching bearing portion 34, that is, the first switching bearing portion 34 is formed when the switching shaft 50 rotates. The hair pressing plate substrate 33 and the hair pressing plate 30 connected to the hair pressing plate substrate 33 are rotated. On the other hand, when the circular section 51b of the switching shaft 50 is positioned at the first switching bearing portion 34, even if the switching shaft 50 rotates with respect to the first switching bearing portion 34, the second switching bearing portion 35 is also switched. In combination with the circular shape that does not rotate despite the rotation of 50, the first switching bearing portion 34, that is, the hair pressing plate substrate 33 and the hair pressing plate substrate on which the first switching bearing portion 34 is formed. The hair pressing plate 30 connected to 33 is prevented from rotating.

  As shown in FIG. 9, a rotor 60 is disposed between the first switching bearing portion 34 and the second switching bearing portion 35 in the hair pressing plate base material 33. The rotor 60 has a rectangular bearing portion 64 that receives the rectangular section 51 a of the switching shaft 50. Further, there is provided a vertical shaft portion 65 that comes into contact with the back surface of the lever portion 41 and falls backward when the lever portion 41 of the operation lever 40 described later (FIGS. 10 and 14) is pushed down. Therefore, when the lever portion 41 of the operation lever 40 is pushed down, the vertical shaft portion 65 falls and the rotor 60 is rotated.

  As shown in FIG. 10, the hair pressing plate base material 33 incorporating the rotor 60 includes corners of the first switching bearing portion 34 and the second switching bearing portion 35 of the hair pressing plate base material 33 and the rotor 60. The switching shaft 50 is inserted so as to penetrate the shape bearing portion 64. The switching shaft 50 has a rod-like shape, and includes a switching action portion 51 and projecting portions 52 at both ends thereof. The switching action part 51 includes a central cross-sectional square part 51a, and a cross-sectional circular part 51b that is located on both sides of the cross-sectional square part 51a and has a diameter shorter than the inscribed circle of the cross-sectional square part 51a. For example, when the cross section of the square section 51a is square and the cross section of the circular section 51b is circular, it means that the circle is smaller than the inscribed circle of the square. The switching shaft 50 can be switched to the first switching position, the second switching position, and the third switching position by sliding in the axial direction as will be described later (FIG. 15). And when the hair iron A of a present Example is assembled, the cross-sectional square part 51a of the switching shaft 50 is always located in the square-shaped bearing part 64 of the rotor 60, as above-mentioned (FIG. 9). When the lever portion 41 of the operation lever 40 is pushed down and the rotor 60 is rotated, the switching shaft 50 is rotated.

  Then, when the switching shaft 50 is displaced in the axial direction and the cross-sectional square portion 51a of the switching shaft 50 is positioned at the square shape portion 34a of the first switching bearing portion 34 that forms the square shape of the hair pressing plate base material 33, When the rotor 60 is rotated by the pushing-down operation of the lever portion 41 of the operation lever 40, the first switching bearing portion 34 is rotated, and the hair pressing plate substrate 33 and the hair pressing plate 30 are also rotated. As will be described later (FIG. 12), the rotation of the hair pressing plate 30 does not rotate due to the lowering operation of the lever portion 41 of the operation lever 40, so that the hair pressing plate 30 opens with respect to the lower pipe 10. Will do. That is, when the cross-sectional square portion 51 a of the switching shaft 50 is positioned at the square shape portion 34 a of the first switching bearing portion 34 in the hair pressing plate base material 33, when the operation lever 40 is pressed down, the hair pressing plate 30 moves to the lower pipe 10. It will open against. However, when the switching shaft 50 is displaced in the axial direction, the square section 51a of the switching shaft 50 is disengaged from the position of the square portion 34a of the first switching bearing section 34 of the hair pressing plate base material 33, and the first switching bearing section. When the rotor 60 is rotated by the push-down operation of the lever portion 41 of the operation lever 40, the circular portion 34b of the first switching bearing portion 34 and the circular first switching bearing are positioned at the circular portion 34b of the operation lever 40. The part 35 does not rotate, and the hair pressure plate base material 33 and the hair pressure plate 30 do not rotate. In other words, when the square section 51a of the switching shaft 50 deviates from the position of the square section 34a of the second switching bearing section 34 of the hair pressing plate base material 33, the hair pressing plate 30 is not connected to the lower pipe even if the operation lever 40 is depressed. 10 will not open.

  As shown in FIG. 11, a connecting member 70 is provided below the switching shaft 50, and a micro switch 71 is attached to the connecting member 70. The micro switch 71 is connected to a wiring from a power cord (not shown) and a wiring from an electric heater, and the switching shaft 50 slides to switch to the first switching position, the second switching position, and the third switching position. When the power is turned on, the electric heater is energized according to the respective switching positions, and the energization switching function for interrupting the energization of the electric heater is performed.

  FIG. 12 shows a structure in which the rotor 60 and the hair pressing plate base material 33 into which the switching shaft 50 is inserted are incorporated in the lower pipe base material 13. As shown in the drawing, the switching shaft 50 has a protruding portion 52 rotatably supported by a pair of lower semicircular bearing portions 14 of the lower pipe base material 13, and even if the switching shaft 50 is displaced in the axial direction. The protruding portion 52 of the switching shaft 50 is configured to be always supported by the lower semicircular bearing portion 14. Since the projecting portion 52 of the switching shaft 50 is cylindrical and the lower semicircular bearing portion 14 of the lower pipe base 13 is semicircular, the switching shaft 50 is operated by the pressing operation of the lever portion 41 of the operation lever 40. Is rotated continuously to the lower pipe base 13 and the lower pipe base 13 in which the lower semicircular bearing 14 is formed, that is, the lower semicircular bearing 14 is formed. The lower pipe 10 does not rotate. In other words, the switching shaft 50 is configured to freely rotate with respect to the lower pipe 10. Therefore, at any position where the switching shaft 50 is displaced in the axial direction, the operation of pushing down the lever portion 41 of the operating lever 40 is performed only by rotating the switching shaft 50 by the rotation of the rotor 60, and the lower pipe base 13 is moved. The lower pipe 10 connected to the lower pipe base 13 is not rotated, nor is it rotated.

  FIG. 13 shows a structure in which the upper pipe base material 23 is incorporated in the lower pipe base material 13 in which the rotor 60 and the hair pressing plate base material 33 into which the switching shaft 50 is inserted are incorporated. As shown in the drawing, the switching shaft 51 of the switching shaft 50 is supported by the rectangular bearing portion 24 of the upper pipe base 23. Then, when the switching shaft 50 is displaced in the axial direction and the square section 51a of the switching shaft 50 is positioned at the square bearing section 24, the switching shaft 50 rotates when the lever portion 41 of the operation lever 40 is pushed down. The square bearing portion 24, that is, the upper pipe base 23 on which the square bearing 24 is formed rotates, and the upper pipe 20 connected to the upper pipe base 23 rotates. The rotation of the upper pipe 20 acts to open the upper pipe 20 with respect to the lower pipe 10 because the lower pipe 10 does not rotate due to the pressing operation of the lever portion 41 of the operation lever 40 as described above (FIG. 12). It will be. That is, when the square section 51 a of the switching shaft 50 is positioned on the square bearing section 24 of the upper pipe base 23, the upper pipe 20 is opened with respect to the lower pipe 10 when the operation lever 40 is pushed down. In this case, even if the square section 51a of the switching shaft 50 is disengaged from the position of the square section 34a of the first switching bearing section 34 of the hair pressing plate base 33 and the operation lever 40 is depressed, the lower pipe 10 On the other hand, even if the hair pressing plate 30 is not opened, the hair pressing plate base material 33 is arranged on the upper pipe 20 so that the upper pipe 20 is opened and the hair pressing plate base material 33 is also opened. It will be. On the other hand, when the switching shaft 50 is displaced in the axial direction and the square section 51a of the switching shaft 50 is disengaged from the position of the square bearing section 24, the switching shaft 50 is rotated by the pressing operation of the lever section 41 of the operation lever 40. Even so, the square bearing portion 24, that is, the upper pipe base material 23 on which the square bearing portion 24 is formed does not rotate, and the upper pipe 20 connected to the upper pipe base material 23 does not rotate. In other words, when the square section 51a of the switching shaft 50 deviates from the position of the square bearing section 24 of the upper pipe base 23, the upper pipe 20 is not opened with respect to the lower pipe 10 even if the operation lever 40 is depressed. Become.

  FIG. 14 shows a structure in which the operation lever 40 is incorporated in the lower pipe base 13 into which the rotor 60 into which the switching shaft 50 is inserted, the hair pressing plate base 33 and the upper pipe base 23 are incorporated. The operating lever 40 has a lever portion 41 protruding from the hair iron A. That is, between the back surface of the lever part 41 and the lower pipe base material 13, the spring 80 is arranged in a direction in which the lever part 41 is pushed up from the lower pipe base material 13, so that it protrudes from the hair iron A. Yes. As described above (FIGS. 3 to 5), the operation lever 40 opens and closes the upper pipe 20 and the pressing plate 30 by pushing down the lever portion 41 and pushing it up by the urging force of the spring 80. Further, the operation lever 40 includes a pair of circular bearing portions 42 at the switching shaft mounting side end of the operation lever 40. The circular bearing portion 42 is formed in a direction perpendicular to the operation lever 40 and receives the protruding portion 52 of the switching shaft 50 so that it does not rotate regardless of the rotation of the switching shaft 50. That is, the columnar protrusion 52 on the switching shaft 50 is rotatably supported by the circular bearing 42 of the operation lever 40.

  Next, the operation of the above-described hair iron A will be described in an organized manner.

  In the state of (a) shown in FIG. 15, the cross-sectional square part 51 a of the switching shaft 50 is located at the square-shaped part 34 a of the first switching bearing part 34 in the hair pressing plate base material 33, and the cross-sectional square part of the switching shaft 50. When 51a deviates from the position of the angular bearing portion 24 of the upper pipe base material 23 and the cross-sectional circular portion 51b of the switching shaft 50 is positioned at the angular bearing portion 24 of the upper pipe base material 23, when the operation lever 40 is depressed, The upper pipe 20 is not opened with respect to the lower pipe 10, and only the hair pressing plate 30 is opened. That is, the first switching position of the switching shaft 50 is such that the square section 51 a of the switching shaft 50 is positioned at the square section 34 of the first switching bearing section 34 of the hair pressing plate base material 33, and the switching shaft 50 has a circular cross section. Since the portion 51b is configured to be positioned at the angular bearing portion 24 of the upper pipe base material 23, when the lever portion 41 of the operation lever 40 is pushed down at the first switching position, the upper pipe 20 Only the hair pressing plate 30 opens with respect to the upper pipe 20 without opening.

  In the state of (b) shown in FIG. 15, the cross-sectional square part 51 a of the switching shaft 50 deviates from the position of the square-shaped part 34 of the first switching bearing part 34 of the hair pressing plate base material 33, and the cross-sectional circle of the switching shaft 50. 51b is located in the first switching bearing portion 34 of the hair pressing plate base material 33, and the cross-sectional square portion 51a of the switching shaft 50 deviates from the position of the square bearing portion 24 of the upper pipe base material 23. When the circular cross-section 51b is positioned on the angular bearing 24 of the upper pipe base 23, the upper pipe 20 and the hair pressing plate 30 are not opened with respect to the lower pipe 10 even if the operation lever 40 is depressed. That is, as for the 2nd switching position of the switching shaft 50, the cross-section circular part 51b of the switching shaft 50 is located in the square-shaped bearing part 24 of the upper pipe base material 23, and the 1st switching bearing part 34 of the hair pressing board base material 33. Since it comprised so, in the 2nd switching position, it became possible to push down the lever part 41 of the operation lever 40, without the lower pipe 10, the upper pipe 20, and the hair pressing board 30 opening, respectively. This makes it possible to store in the cover B or the like and make it compact, so it is convenient to carry.

  In the state of (c) shown in FIG. 15, when the square section 51 a of the switching shaft 50 is positioned on the square bearing section 24 of the upper pipe base 23, the operation pipe 40 is pushed down with respect to the lower pipe 10. The pipe 20 and the hair pressing plate 30 are in an open state. That is, the third switching position of the switching shaft 50 is configured such that the cross-sectional square portion 51a of the switching shaft 50 is positioned at the angular bearing portion 24 of the upper pipe base 23. Therefore, at the third switching position, the operation lever When the lever part 41 of 40 is pushed down, the upper pipe 20 and the hair pressing plate 30 are opened with respect to the lower pipe 10.

  The micro switch 71 described above is configured such that when the switching shaft 50 is in the first switching position and the third switching position, the micro switch 71 is turned on and the electric heater is energized. When in the second switching position, the microswitch 71 is turned off and the electric heater is turned off. Therefore, in the state of the second switching position in which the lower pipe 10, the upper pipe 20, and the hair pressing plate 30 are not opened, and the lever portion 41 of the operation lever 40 can be pushed down, the electric heater is deenergized. Therefore, if the hair clamping part A2 is housed in a state where the lever part 41 of the operation lever 40 is pushed down in the cover B or the like, there is no risk of heating, which is safe.

  As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalent scope thereof.

A ... Hair iron A1 ... Holding part A2 ... Hair clamping part B ... Storage cover 10 ... Lower pipe 11 ... Flat surface 12 of the lower pipe ... Lower semicircular surface 13 of the lower pipe ... Lower pipe base material 14 ... Lower pipe base lower semicircular bearing portion 20 ... Upper pipe 21 ... Upper pipe flat surface 22 ... Upper pipe upper semicircular surface 23 ... Upper pipe base material 24 ...... Spiral bearing portion 30 of upper pipe base material ...... Hair presser plate 33 …… Hair presser base plate 34 …… First switching bearing portion (square-circle mixed shape)
34a ... Square portion 34b of the first switching bearing portion ... Circular portion 35 of the first switching bearing portion ... Second switching bearing portion (circular shape)
40 …… Operating lever 41 …… Lever portion 42 …… Circular bearing portion 50 of the operating lever …… Switching shaft 51 …… Switching action portion 51a of the switching shaft… Cross section of the switching action portion 51b… Cross section of the switching action portion Circular part 52 ... Projection part 60 of switching shaft ... Rotor 64 ... Rectangular bearing part 65 of rotor ... Vertical shaft part 70 of rotor ... Connection member 71 provided on switching shaft ... Switching shaft Micro switch 80 attached to ......... Spring

Claims (4)

A hair iron with built-in electric heater to give heat to hair,
It consists of at least a rod-shaped gripping part and a hair clamping part that is connected to one end of the gripping part and pinches the hair,
The hair clamping part is composed of at least a lower pipe, an upper pipe, a hair pressing plate, an operation lever and a switching shaft,
The lower pipe has a semicircular shape in the lower section,
The upper pipe is located on the flat surface of the lower pipe and has a semi-circular upper cross section having a flat surface that can be opened and closed with respect to the flat surface of the lower pipe.
The hair pressing plate is located on the upper semicircular surface of the upper pipe and has an upper semicircular shape along the upper semicircular surface of the upper pipe, and opens and closes with respect to the upper semicircular surface of the upper pipe. Is free
The operation lever is arranged so that the lever part protrudes from the hair iron, and by opening and lowering the lever part and pushing up by the urging force, the upper pipe and the holding plate are opened and closed.
The switching shaft can be switched to at least the first switching position, the second switching position, and the third switching position by displacing,
In the first switching position, when the lever part of the operating lever is pushed down, the upper pipe is not opened with respect to the lower pipe, but only the hair pressing plate is opened with respect to the upper pipe,
In the second switching position, it is possible to push down the lever part of the operation lever without opening the lower pipe, the upper pipe and the hair pressing plate,
In the third switching position, when the lever portion of the operation lever is pushed down, the upper pipe and the hair pressing plate are opened with respect to the lower pipe. The switching shaft has a rod-like shape, and is composed of a switching action portion including a cross-sectional square portion, a cross-sectional circular portion having a diameter shorter than the inscribed circle of the cross-sectional square portion, and protrusions at both ends thereof. By sliding and displacing in the axial direction, it is possible to switch to at least the first switching position, the second switching position, and the third switching position,
The lower pipe has a pair of lower semicircular bearing portions that are formed in a direction perpendicular to the lower pipe on the gripping portion mounting side, receive the protruding portion of the switching shaft, and do not rotate regardless of the rotation of the switching shaft. Equipped with a base material,
The upper pipe is formed in a direction orthogonal to the upper pipe on the gripping portion mounting side, and has a pair of square bearing portions that receive the switching action portion of the switching shaft and rotate with the rotation of the rectangular portion of the switching shaft. Equipped with pipe base material,
The hair pressing plate has a first switching bearing portion and a second switching bearing portion that are formed in a direction orthogonal to the hair pressing plate on the gripping portion mounting side and receive a switching action portion of the switching shaft. And the first switching bearing portion is composed of a square-shaped portion that rotates together with the rotation of the square-shaped section of the switching shaft and a circular-shaped portion that does not rotate regardless of the rotation of the rectangular-shaped section of the switching shaft. The part is a circular shape that does not rotate regardless of the rotation of the switching shaft,
A rotor is disposed between the first switching bearing portion and the second switching bearing portion;
The rotor includes a mechanism that rotates the rotor by depressing the lever portion of the operation lever and has a rectangular bearing portion that receives the square-shaped section of the switching shaft.
The operation lever is formed at a switching shaft mounting side end of the operation lever in a direction orthogonal to the operation lever, receives a protruding portion of the switching shaft, and has a pair of circular bearing portions that do not rotate regardless of the rotation of the switching shaft. Prepared,
The first switching position of the switching shaft is such that the square section of the switching shaft is located in the square shape section of the first switching bearing section of the hair pressing plate substrate, and the circular section of the switching shaft is the square shape of the upper pipe substrate. Located in the bearing,
The second switching position of the switching shaft is such that the circular section of the switching shaft is located at the angular bearing portion of the upper pipe base material, the circular shape portion of the first switching bearing portion of the hair pressing plate base material, and the second switching bearing portion. And
3. The hair iron according to claim 1, wherein the third switching position of the switching shaft is configured such that a square section of the switching shaft is positioned at a rectangular bearing portion of the upper pipe base material. The switching shaft is provided with an energization switching function for energizing and heating the electric heater at the first switching position and the third switching position, and cutting off the energization to the electric heater at the second switching position. Item 3. A hair iron according to item 1 or 2. An energization switching function that cuts off the power to the electric heater is provided with a connecting member on the switching shaft, a micro switch is attached to the connecting member, and the micro switch is turned on at the first switching position and the third switching position of the switching shaft. The hair iron according to claim 3, wherein the electric iron is energized and the micro switch is turned off at the second switching position of the switching shaft so that the electric heater is de-energized.

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