US20210059374A1 - Hair iron - Google Patents
Hair iron Download PDFInfo
- Publication number
- US20210059374A1 US20210059374A1 US17/001,041 US202017001041A US2021059374A1 US 20210059374 A1 US20210059374 A1 US 20210059374A1 US 202017001041 A US202017001041 A US 202017001041A US 2021059374 A1 US2021059374 A1 US 2021059374A1
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- US
- United States
- Prior art keywords
- hair
- hair holding
- holding surface
- discharge device
- exemplary embodiment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 276
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 109
- 150000002500 ions Chemical class 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims description 58
- 235000000396 iron Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 239000011796 hollow space material Substances 0.000 description 31
- 229920001971 elastomer Polymers 0.000 description 22
- 230000007246 mechanism Effects 0.000 description 22
- 239000005060 rubber Substances 0.000 description 22
- 238000005192 partition Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000002923 metal particle Substances 0.000 description 18
- 238000009413 insulation Methods 0.000 description 17
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 10
- 230000009471 action Effects 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229910052723 transition metal Inorganic materials 0.000 description 6
- 150000003624 transition metals Chemical class 0.000 description 6
- 239000003595 mist Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 241000282860 Procaviidae Species 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 229910052762 osmium Inorganic materials 0.000 description 1
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- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
- A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel by electricity
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/06—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws
- A45D1/08—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws the jaws remaining parallel to each other during use, e.g. the jaws sliding parallel to each other
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
- A45D2/001—Hair straightening appliances
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/20—Additional enhancing means
- A45D2200/202—Ionisation
Definitions
- the present disclosure relates to a hair iron.
- Unexamined Japanese Patent Publication No. 2018-102540 discloses a conventional hair iron including a first hair holding part including a first hair holding surface, and a second hair holding part including a second hair holding surface configured to face the first hair holding surface.
- the hair iron disclosed in PTL 1 is a device that holds hair with the first hair holding surface and the second hair holding surface facing each other to apply hair care to the hair.
- the hair iron disclosed in. PTL 1 further includes a discharge device that generates ions, and an ion ejection port configured to eject the ions generated by the discharge device toward the hair. This makes it possible to further increase hair care effects of the hair iron.
- the discharge device is disposed at a portion that overlaps the first hair holding surface. Specifically, the discharge device is disposed at a position where the discharge device and the first hair holding surface overlap each other as viewed along a direction of a normal to the first hair holding surface. This may lead to an increase in thickness of the hair iron (a size of the first hair holding surface in the direction of the normal).
- the present disclosure provides a hair iron that can be downsized in a thickness direction while increasing hair care effects.
- a hair iron according to the present disclosure includes a first hair holding part including a first hair holding surface, and a second hair holding part including a second hair holding surface configured to Pace the first hair holding surface. Further, the hair iron holds hair with the first hair holding surface and the second hair holding surface facing each other.
- the hair iron further includes a discharge device that generates ions, and an ion ejection port that ejects the ions generated by the discharge device. Then, the discharge device is disposed at a portion of the first hair holding part that does not overlap with the first hair holding surface.
- FIG. 1 is a plan view of a hair iron according to an exemplary embodiment
- FIG. 2 is a hack view of the hair iron according to the exemplary embodiment
- FIG. 3 is a side view of the hair iron according to the exemplary embodiment, showing a state where a first hair holding surface faces a second hair holding surface;
- FIG. 4 is a side view of the hair iron according to the exemplary embodiment, showing a state where a first hair holding part and second hair holding part are spaced apart from each other;
- FIG. 5 is a horizontal cross-sectional view of a pivot joint included in the hair iron according to the exemplary embodiment
- FIG. 6 is a cross-sectional view taken along line 6 - 6 of FIG. 1 ;
- FIG. 7 is a diagram showing a first arm of the hair iron according to the exemplary embodiment as viewed from the first hair holding surface side;
- FIG. 8 is a diagram showing a second arm of the hair iron according to the exemplary embodiment as viewed from the second hair holding surface side;
- FIG. 9 is a transverse cross-sectional view of the hair iron according to the exemplary embodiment taken along a plane orthogonal to a front-back direction, showing a portion where a front float rubber is disposed;
- FIG. 10 is a transverse cross-sectional view of the hair iron according to the exemplary embodiment taken along a plane orthogonal to the front-back direction, showing a portion where a rear float rubber is disposed;
- FIG. 11 is a cross-sectional view taken along line 11 - 11 of FIG, 3 ;
- FIG. 12 is a cross-sectional view taken along line 12 - 12 of FIG. 3 ;
- FIG. 13 is a perspective view of the hair iron according to the exemplary embodiment, showing a state where the hair iron is opened with the first arm located at a lower side;
- FIG. 14 is a perspective view of the hair iron according to the exemplary embodiment, showing an ion ejection port and a liquid intake port;
- FIG. 15 is a diagram showing a discharge device disposed in a hollow space in the hair iron according to the exemplary embodiment.
- a vertical direction is defined on the basis of a hair iron in a state where a first hair holding surface and a second hair holding surface are brought close to each other (a first hair holding part and the second hair holding part are closed), and the first hair holding surface is located over the second hair holding surface.
- a hair holding part side of the hair iron defined as a front side and a grip side defined as a rear side.
- a front-back direction based on the above-described principle (longitudinal direction of the first hair holding surface and second hair holding surface) defined as an X direction
- a width direction lateral direction of the first hair holding surface and second hair holding surface
- a vertical direction thickness direction of the first hair holding part and second hair holding part based on the above-described principle
- Hair iron 10 includes, as shown in FIG. 1 to FIG. 4 , first arm 20 A (upper arm) and second arm 20 B (lower arm) joined together with pivot joint 110 , first arm 20 A and second arm 20 B being pivotable into an approximate V shape (including a V shape).
- First arm 20 A and second arm 20 B are relatively pivoted at pivot joint 110 . This allows first arm 20 A and second arm 20 B of hair iron 10 to come into contact with or separate from each other at their respective ends.
- first arm 20 A and second arm 20 B are relatively pivotable. This allows first hair holding surface 560 A and second hair holding surface 560 B, which will be described later, to come closer to or separate from each other.
- pivot joint 110 of hair iron 10 will be described with reference to FIG. 5 .
- pivot joint 110 includes shaft 111 including head 111 a and rod 111 b, screw 112 fitted into rod 111 b, and shaft cover 113 that covers a head of screw 112 .
- Pivot joint 110 includes a pair of protrusions 114 provided at a rear end of first case 210 A of first arm 20 A, which will be described later, in the X direction (front-back direction).
- the pair of protrusions 114 have an approximate disc shape (including a disc shape) and extends downward from both ends of first case 210 A in the Y direction (width direction).
- Through-hole 114 a is provided through a center of each protrusion 114 in the Y direction (width direction).
- Pivot joint 110 includes protrusion 115 provided at a rear end of second case 210 B of second arm 20 B, which will be described later, in the X direction (front-back direction).
- protrusion 115 has an approximate cylindrical shape (including a cylindrical shape) and extends upward from second case 210 B.
- Through-hole 115 a is provided through a center of protrusion 115 in the Y direction (width direction).
- Pivot joint 110 further includes coil spring 116 .
- Coil spring 116 is housed in a space provided in protrusion 115 having an approximate cylindrical shape (including a cylindrical shape).
- Pivot joint 110 structured as described above is provided by the following method, for example.
- coil spring 116 is disposed in the space in protrusion 115 .
- the pair of protrusions 114 are arranged at both ends of protrusion 115 in the Y direction (width direction).
- through-hole 114 a and through-hole 115 a communicate with each other in the Y direction (width direction).
- rod 111 b of shaft 111 is inserted from one side in the Y direction (width direction) into through-hole 114 a and through-hole 115 a that communicate with each other in the Y direction (width direction).
- screw 112 is inserted into through-hole 114 a and through-hole 115 a from the other side in the Y direction (width direction) and fitted into rod 111 b of shaft 111 .
- shaft cover 113 is attached from the other side in the Y direction (width direction). As a result, the head of screw 112 is covered by shaft cover 113 to prevent the head from being exposed to the outside.
- first arm 20 A and second arm 20 B are relatively pivotable at pivot joint 110 .
- Coil spring 116 applies force to first arm 20 A and second arm 20 B to cause both first arm 20 A and second arm 20 B to pivot outward.
- lock mechanism 120 of hair iron 10 will be described with reference to FIG. 5 .
- hair iron 10 of the present exemplary embodiment includes lock mechanism 120 disposed at rear end 10 a of hair iron 10 .
- Lock mechanism 120 restricts, when operated, the outward pivot motion of first arm 20 A and second arm 20 B.
- lock mechanism 120 holds, when operated, first arm 20 A and second arm 20 B in a closed state.
- lock mechanism 120 includes slide lock plate 121 , restricting protrusion 122 , and the like.
- Slide lock plate 121 is slidably attached to a rear end of an upper portion of second case 210 B in the X direction (front-back direction).
- Restricting protrusion 122 is provided at a front end of slide lock plate 121 and extends upward (Z direction).
- Lock mechanism 120 further includes restricting recess 123 provided at a rear end of a lower portion of first case 210 A and restricting protrusion 124 provided in front of restricting recess 123 .
- Restricting recess 123 is provided to face restricting protrusion 122 of slide lock plate 121 when slide lock plate 121 is slid rearward in the X direction (front-back direction).
- restricting protrusion 124 is provided to face restricting protrusion 122 of slide lock plate 121 when slide lock plate 121 is slid forward in the X direction (front-back direction).
- coil spring 116 applies force to first arm 20 A and second arm 20 B so as to cause both first arm 20 A and second arm 20 B to pivot outward.
- lock mechanism 120 when lock mechanism 120 is operated as described above, the outward pivot motion of first arm 20 A and second arm 20 B is restricted.
- first arm 20 A and second arm 20 B continue until restricting protrusion 122 of slide lock plate 121 engages with restricting recess 123 . This restricts further outward pivot motion of first arm 20 A and second arm 20 B.
- first grip 30 A upper grip
- second grip 30 B lower grip
- first hair holding part 40 A upper hair holding part
- second hair holding part 40 B lower hair holding part
- First hair holding part 40 A includes first hair holding surface 560 A (upper hair holding surface) that can come close to or separate from (can face) second hair holding surface 560 B when first arm 20 A is pivoted relative to second arm 20 B.
- second hair holding part 40 B includes second hair holding surface 560 B (lower hair holding surface) that can come close to or separate from (can face) first hair holding surface 560 A when second arm 20 B is pivoted relative to first arm 20 A.
- first hair holding surface 560 A and second hair holding surface 560 B of the present exemplary embodiment each have an approximate rectangular shape (including a rectangular shape) extending long and narrow in the X direction (front-back direction) as viewed along the Z direction (vertical direction: direction of the normal).
- first hair holding part 40 A and second hair holding part 40 B of the present exemplary embodiment have their respective outer surfaces 420 a A and 420 a B formed in a curved shape, Accordingly, hair is easily wrapped around outer surface 420 a A or outer surface 420 a B. This can make the hair curly.
- outer surface 420 a A of first hair holding part 40 A is a portion of the outer surface of first hair holding part 40 A located on an opposite side from first hair holding surface 560 A.
- outer surface 420 a B of second hair holding part 40 B is a portion of the outer surface of second hair holding part 40 B located on an opposite side from second hair holding surface 560 B.
- a portion, other than a lower surface, of the outer surface of first hair holding part 40 A, and a portion, other than an upper surface, of the outer surface of second hair holding part 40 B serve as outer surface 420 a A of first hair holding part 40 A and outer surface 420 a B of second hair holding part 40 B, respectively.
- first hair holding part 40 A and second hair holding part 40 B include heater 530 A and heater 530 B, respectively, heater 530 A and heater 530 B being provided as heat generators.
- hair iron 10 includes power supply cord 140 attached to rear end 10 a via rotary connector 130 .
- Power supply cord 140 is electrically coupled to, via lead wire 581 , control device 340 B (electrical component) that controls heater 530 A and heater 530 B shown in FIG. 6 .
- Hair iron 10 further includes operation switch 150 shown in FIG. 8 .
- Operation switch 150 allows a user to turn on or off power to heater 530 A and heater 530 B.
- hair iron 10 structured as described above can make the hair curly or straighten the hair.
- first hair holding surface 560 A and second hair holding surface 560 B the hair is held between first hair holding surface 560 A and second hair holding surface 560 B. Then, heat generated by heater 530 A and heater 530 B is applied to the hair through first hair holding surface 560 A and second hair holding surface 560 B. This can make the hair curly or straighten the hair.
- the hair is made curly as follows.
- first hair holding part 40 A and second hair holding part 40 B that have been heated are made to face each other. Then, between first hair holding part 40 A and second hair holding part 40 B, the hair is disposed extending in the width direction (Y direction) of first hair holding part 40 A and second hair holding part 40 B. In this state, the hair is held between first hair holding surface 560 A and second hair holding surface 560 B.
- hair iron 10 is rotated, for example, about the X direction. This presses a root side of the hair that is not held between first hair holding surface 560 A and second hair holding surface 560 B against outer surface 420 a A of first hair holding part 40 A or outer surface 420 a B of second hair holding part 40 B. Then, with the hair pressed against outer surface 420 a A or outer surface 420 a B, hair iron 10 is slid along the hair toward the ends of the hair. This makes the hair curly.
- the hair is straightened as follows.
- first hair holding surface 560 A and second hair holding surface 560 B are held between first hair holding surface 560 A and second hair holding surface 560 B.
- hair iron 10 is slid along the hair toward the ends of the hair without being rotated. This straightens the hair,
- hair iron 10 makes hairdressing by applying heat to the hair for hair setting.
- first arm 20 A primarily includes first case 210 A serving as an outer shell. Then, a side of first case 210 A adjacent to pivot joint 110 (rear side of hair iron 10 in the X direction) serves as first grip case 310 A serving as an outer shell of first grip 30 A. On the other hand, a tip side of first case 210 A (front side of hair iron 10 in the X direction) serves as first hair holding part case 410 A serving as an outer shell of first hair holding part 40 A.
- First case 210 A of the present exemplary embodiment includes upper housing 220 A and lower housing 230 A, upper housing 220 A that opens downward having the opening covered with lower housing 230 A to form a hollow shape.
- upper housing 220 A of the present exemplary embodiment includes upper housing 320 A of first grip 30 A and upper housing 420 A of first hair holding part 40 A.
- lower housing 230 A includes cover 330 A and first hair holding member 50 A.
- upper housing 320 A of first grip 30 A and upper housing 420 A of first hair holding part 40 A are integrally provided. That is, a side of upper housing 220 A adjacent to pivot joint 110 serves as upper housing 320 A of first grip 30 A. On the other hand, a tip side of upper housing 220 A serves as upper housing 420 A of first hair holding part 40 A.
- cover 330 A and first hair holding member 50 A are separately provided and are each attached to upper housing 220 A to cover the opening of upper housing 220 A to form lower housing 230 A.
- partition 240 A divides hollow space S 1 in first case 210 A into hollow space S 2 in first grip 30 A and hollow space S 3 in first hair holding part 40 A.
- Partition 240 A includes wall 221 A, wall 331 A, gasket 250 A, and the like.
- Wall 221 A is provided extending downward in the Z direction from an inner side (lower surface side) of a center of upper housing 220 A in the X direction (longitudinal direction: front-back direction).
- Wall 331 A is provided extending upward in the Z direction from an inner side (upper surface side) on a front side of cover 330 A in the X direction.
- Gasket 250 A is held between wall 221 A and wall 331 A.
- partition 240 A is provided.
- a portion of first arm 20 A located behind partition 240 A serves as first grip 30 A
- a portion of first arm 20 A located in front of partition 240 A serves as first hair holding part 40 A. That is, in hair iron 10 according to the present exemplary embodiment, a portion on a tip side (in front of wall 331 A) of cover 330 A serves as a portion of first hair holding part case 410 A.
- FIG. 6 Various electrical components are housed in hollow space S 2 in first grip 30 A and hollow space S 3 in first hair holding part 40 A shown in FIG. 6 .
- electronic components such as control device 340 A are housed in hollow space S 2 in first grip 30 A.
- Discharge device 600 electrical component
- thermostat 582 A electronic component: electrical component
- the like are housed in hollow space S 3 in first hair holding part 40 A.
- control device 340 A housed in hollow space S 2 in first grip 30 A.
- control device 340 A and discharge device 600 are electrically coupled to each other via lead wire 581 passing through an insertion hole provided through gasket 250 A.
- front end 222 A (end on the front side in the X direction) of upper housing 220 A is curved downward (toward first hair holding surface 560 A). That is, the curvature of front end 222 A allows the user to easily hold front end 222 A when using hair iron 10 .
- protrusion 222 a A is provided at front end 222 A. Protrusion 222 a A serves as a slip stopper when the user holds front end 222 A. Note that protrusion 222 a A is further capable of dissipating heat transmitted from heater 530 A to front end 222 A (knob to be held by the user).
- heat insulation member 430 A is provided on inner surface 420 b A of upper housing 420 A.
- Heat insulation member 430 A prevents heat from being transmitted from heater 530 A to upper housing 420 A.
- heat insulation member 430 A is provided along inner surface 420 b A having a concave shape of upper housing 420 A.
- Heat insulation member 430 A includes insertion hole 431 A provided through a portion of heat insulation member 430 A.
- protrusion 421 A extending downward is provided at the portion of heat insulation member 430 A corresponding to insertion hole 431 A.
- Heat insulation member 430 A is disposed on inner surface 420 b A of upper housing 420 A with the protrusion 421 A held in insertion hole 431 A. As a result, heat insulation member 430 A is positioned relative to upper housing 420 A.
- heat insulation member 430 A is disposed on inner surface 420 b A of upper housing 420 A. This makes it possible to prevent, even when first hair holding part 40 A is made thinner, heat from being transmitted from heater 530 A to upper housing 420 A.
- first hair holding member 50 A serving as a portion of lower housing 230 A includes plate member 510 A.
- Plate member 510 A is made of a material having high heat conductivity such as copper or aluminum.
- First hair holding member 50 A further includes holding member 520 A, heater 530 A, and the like.
- Holding member 520 A is supported by upper housing 420 A of first hair holding part 40 A to hold plate member 510 A.
- Heater 530 A is heat-conductively coupled to plate member 510 A to transmit generated heat to plate member 510 A.
- Plate member 510 A includes plate part 540 A having an approximate plate shape (including a plate shape).
- Plate part 540 A includes first hair holding surface 560 A provided on a surface (lower surface) of plate part 540 A, first hair holding surface 560 A having an approximately flat shape (including a flat shape).
- first hair holding surface 560 A is provided in an approximate rectangular shape (including a rectangular shape) extending long and narrow in the longitudinal direction of first case 210 A in the plan view (as viewed from below).
- plate part 540 A has both ends in the Y direction (width direction: the same direction as the width direction of first hair holding part 40 A) bent toward the inside of first case 210 A. Then, at both ends of first hair holding surface 560 A in the Y direction (width direction), curved surface 562 A is provided in a convex shape that curves obliquely outward in the cross-sectional view in the width direction (plane cut along a vertical plane along the width direction).
- first hair holding surface 560 A includes flat surface 561 A (flat part) located at a center of first hair holding surface 560 A in the width direction and curved surfaces 562 A provided at both ends of flat surface 561 A in the width direction.
- plate member 510 A includes a pair of legs 550 A continuously extending inward (upward) from a back surface (upper side) of plate part 540 A.
- the pair of legs 550 A are held by holding member 520 A.
- plate member 510 A is held by holding member 520 A.
- Heater 530 A is housed in housing 570 A provided between the pair of legs 550 A. At this time, heater 530 A housed in housing 570 A is disposed in contact with an inner surface of plate part 540 A.
- thermostat 582 A are housed adjacent to a back surface (lower side) of heater 530 A in housing 570 A.
- Examples of heater 530 A include a positive temperature coefficient (PTC) heater and the like.
- PTC positive temperature coefficient
- the use of the FTC heater allows stepless temperature control.
- the PTC heater need not necessarily be used as the heater, and another type of heater such as a nichrome wire heater may be used.
- holding member 520 A has an approximate mountain shape (including a mountain shape) that opens downward and protrudes upward in the cross-sectional view in the width direction.
- holding member 520 A includes top wall 521 A, side wall 522 A, upper flat part 521 a A, inclined part 521 b A, lower flat part 521 c A, and side wall 522 A.
- Side walls 522 A are provided extending downward from both ends of top wall 521 A in the Y direction.
- Upper flat part 521 a A is located at a center of holding member 520 A in the Y direction (width direction) and is disposed at an upper position of top wall 521 A.
- Inclined part 521 b A. is provided continuously extending from both ends, in the Y direction, of upper flat part 521 a A of top wall 521 A and extends outward in the Y direction and downward.
- lower flat part 521 c A is provided continuously extending from both ends of inclined part 521 b A of top wall 521 A and horizontally extends outward in the Y direction. Then, as described above, side walls 522 A are provided continuously extending from both ends, in the Y direction, of lower flat part 521 c A of top wall 521 A.
- first hair holding part 40 A and second hair holding part 40 B are supported movable up and down in the vertical direction (direction of the normal) relative to upper housing 420 A of first hair holding part 40 A and lower housing 420 B of second hair holding part 40 B.
- This structure can prevent excessive load on the hair held between first hair holding surface 560 A and second hair holding surface 560 B. This can in turn prevent damage to hair.
- first hair holding part 40 A includes first float mechanism 60 A.
- First float mechanism 60 A floatably holds first hair holding member 50 A relative to upper housing 420 A (see FIG. 9 and FIG. 10 ).
- First float mechanism 60 A includes two float rubbers 610 A (float parts) that are elastically deformable. Float rubbers 610 A are arranged on the center of first hair holding part 40 A in the Y direction (width direction) and spaced apart from each other in the X direction (front-back direction). Then, the elastic deformation of two float rubbers 610 A causes first hair holding member 50 A to move (float) relative to upper housing 420 A.
- Each float rubber 610 A of the present exemplary embodiment has an arrowhead shape in the cross-sectional view in the width direction, and includes neck part 611 A and arrowhead part 612 A, neck part 611 A being located on a base side of float rubber 610 A, and arrowhead part 612 A being located on a tip side of float rubber 610 A.
- Arrowhead part 612 A tapers down toward the tip side and includes flat surface 612 a A on a base side of arrowhead part 612 A, flat surface 612 a A being large in area.
- flat surface 612 b A smaller in area than flat surface 612 a A is provided on a tip of arrowhead part 612 A.
- Neck part 611 A is provided continuously extending from a center of flat surface 612 a A.
- Neck part 611 A located on the base side of float rubber 610 A is inserted into insertion hole 621 A provided through upper flat part 521 a A of top wall 521 A. This causes float rubber 610 A to be held by top wall 521 A of holding member 520 A.
- flat surface 612 a A located on the base side (neck part 611 A side) of arrowhead part 612 A is housed in space 623 A surrounded by rib 622 A. provided on upper flat part 521 a A of top wall 521 A.
- flat surface 612 b A located on the tip side (tapered portion side) of arrowhead part 612 A is housed in space 632 A surrounded by peripheral wall 631 A provided on protrusion 421 A of upper housing 420 A.
- first hair holding member 50 A causes, according to the present exemplary embodiment, first hair holding member 50 A to be supported by upper housing 420 A via float rubbers 610 A that are elastically deformable. That is, first hair holding member 50 A is floatably held relative to upper housing 420 A. This allows first hair holding surface 560 A to swing in the direction of the normal to first hair holding surface 560 A (Z direction: vertical direction).
- the swing motion of first hair holding surface 560 A in the direction of the normal to first hair holding surface 560 A includes a linear motion of first hair holding surface 560 A in the direction of the normal to first hair holding surface 560 A.
- the swing motion further includes a relative motion of one end of first hair holding surface 560 A to the other end in the direction of the normal to first hair holding surface 560 A.
- the swing motion of first hair holding surface 560 A in the direction of the normal to first hair holding surface 560 A corresponds to the linear motion of first hair holding surface 560 A in the direction of the normal to first hair holding surface 560 A or a pivot motion of first hair holding surface 560 A on an axis along an XY plane.
- First hair holding part 40 A of the present exemplary embodiment further includes first pivot mechanism 70 A, as shown in FIG. 11 and FIG. 12 .
- First pivot mechanism 70 A is structured to pivot first hair holding surface 560 A (first hair holding member 50 A) on first pivot axis 710 A extending in the X direction (front-back direction).
- first pivot mechanism 70 A includes first pivot piece 720 A and support part 730 A that slidably supports first pivot piece 720 A.
- First pivot piece 720 A is provided, extending outward in the X direction, at both sides of holding member 520 A in the X direction.
- First pivot piece 720 A has a convex shape that curves upward (Z direction). Then, concave surface 721 A provided on a lower side (side adjacent to first hair holding surface 560 A) of first pivot piece 720 A is slidably supported by support part 730 A.
- concave surface 721 A is provided in an arc shape centered on first pivot axis 710 A in the cross-sectional view in the width direction (Y direction).
- first groove part 711 A (groove, see FIG. 13 ) is provided extending along the X direction (front-back direction: longitudinal direction) on the center of first hair holding surface 560 A in the Y direction (width direction).
- First groove part 711 A has a depth of about 1 mm, for example.
- First groove part 711 A corresponds to first pivot axis 710 A. Therefore, according to the present exemplary embodiment, concave surface 721 A is provided in an arc shape centered on first groove part 711 A in the cross-sectional view in the width direction.
- Support part 730 A of first pivot mechanism 70 A includes two outer ribs 731 A and two inner ribs 732 A.
- Outer ribs 731 A are provided outside in the Y direction (width direction).
- Inner ribs 732 A are provided inside two outer ribs 731 A in the Y direction (width direction).
- Outer ribs 731 A and inner ribs 732 A are provided extending, toward upper housing 420 A, from the inner surface of lower housing 230 A adjacent to hollow space S 3 in first hair holding part 40 A shown in FIG. 6 .
- outer ribs 731 A and inner rib 732 A on one side are provided on cover 330 A as lower housing 230 A.
- Outer ribs 731 A and inner ribs 732 A on the other side are provided on lower housing 230 A that covers the opening, located in front of first hair holding member 50 A, of upper housing 220 A.
- two inner ribs 732 A extend shorter than two outer ribs 731 A.
- first pivot piece 720 A is brought into sliding contact with tips of two inner ribs 732 A.
- Two outer ribs 731 A are structured to prevent first pivot piece 720 A from being misaligned in the Y direction (width direction). This structure prevents, when first hair holding surface 560 A (first hair holding member 50 A) is pivoted relative to upper housing 220 A, concave surface 721 A of first pivot piece 720 A from being out of sliding contact with the tips of two inner ribs 732 A.
- first pivot piece 720 A is pivotably supported by support part 730 A. This allows first hair holding surface 560 A to pivot on first groove part 711 A (first pivot axis 710 A) extending in the X direction (front-back direction).
- first pivot axis 710 A is an intangible shaft, but first pivot axis 710 A may be a tangible shaft.
- First arm 20 A is structured as described above.
- second arm 20 B primarily includes second case 210 B serving as an outer shell. Then, a side of second case 210 B adjacent to pivot joint 110 (rear side of hair iron 10 in the X direction) serves as second grip case 310 B serving as an outer shell of second grip 30 B. On the other hand, a tip side of second case 210 B (front side of hair iron 10 in the X direction) serves as second hair holding part case 410 B serving as an outer shell of second hair holding part 40 B.
- Second case 210 B of the present exemplary embodiment includes upper housing 230 B and lower housing 220 B, lower housing 220 B that opens upward having the opening covered with upper housing 230 B to form a hollow shape.
- second grip case 310 B is provided in a hollow shape.
- second hair holding part 40 B is covered with second hair holding member 50 B.
- second hair holding part case 4108 is provided.
- lower housing 220 B of the present exemplary embodiment includes lower housing 320 B of second grip 30 B and lower housing 420 B of second hair holding part 40 B.
- upper housing 230 B includes cover 330 B and second hair holding member 50 B.
- lower housing 320 B of second grip 30 B and lower housing 420 B of second hair holding part 40 B are integrally provided. That is, a side of lower housing 220 B adjacent to pivot joint 110 serves as lower housing 320 B of second grip 30 B. On the other hand, a tip side of lower housing 220 B serves as lower housing 420 B of second hair holding part 40 B.
- cover 330 B and second hair holding member 50 B are separately provided and are each attached to lower housing 220 B to cover the opening of lower housing 220 B to form upper housing 230 B.
- partition 240 B divides hollow space S 4 in second case 210 B into hollow space S 5 in second grip 30 B and hollow space S 6 in second hair holding part 40 B.
- Partition 240 B includes wall 221 B, wall 331 B, gasket 250 B, and the like.
- Wall 221 B is provided extending upward in the Z direction from an inner side (upper surface side) of a center of lower housing 220 B in the X direction (longitudinal direction: front-back direction).
- Wall 331 B is provided extending downward in the Z direction from an inner side (lower surface side) on a front side of cover 330 B in the X direction.
- Gasket 250 B is held between wall 221 B and wall 331 B. As a result, partition 240 B is provided.
- a portion of second arm 20 B located behind partition 240 B serves as second grip 30 B, and a portion of second arm 20 B located in front of partition 240 B serves as second hair holding part 40 B. That is, in hair iron 10 according to the present exemplary embodiment, a portion on a tip side (in front of wall 331 B) of cover 330 B serves as a portion of second hair holding part case 410 B.
- FIG. 6 Various electric components are housed in hollow space S 5 in second grip 30 B and hollow space S 6 in second hair holding part 40 B shown in FIG. 6 .
- electronic components such as control device 340 B that controls heater 530 A and heater 530 B are housed in hollow space S 5 in second grip 30 B.
- Electrical components such as fuse 582 B and thermistor 583 B are housed in hollow space S 6 in second hair holding part 40 B.
- control device 340 B housed in hollow space S 5 in second grip 30 B.
- heater 530 A and thermostat 582 A are electrically coupled to control device 340 B via lead wire 581 passing through an insertion hole provided through gasket 250 A. Further, electrical components such as fuse 582 B and thermistor 583 B are electrically coupled to control device 340 B via lead wire 581 .
- front end 222 B (end on the front side in the X direction) of lower housing 220 B is curved upward (toward second hair holding surface 560 B). That is, the curvature of front end 222 B allows the user to easily hold front end 222 B when using hair iron 10 .
- protrusion 222 a B is provided at front end 222 B. Protrusion 222 a B serves as a slip stopper when the user holds front end 222 B. Note that protrusion 222 a B is further capable of dissipating heat transmitted from heater 530 B to front end 222 B (knob to be held by the user).
- heat insulation member 430 B is provided on inner surface 420 b B of lower housing 420 B.
- Heat insulation member 430 B prevents heat from being transmitted from heater 530 B to lower housing 420 B.
- heat insulation member 430 B is provided along inner surface 420 b B having a concave shape of lower housing 420 B.
- Heat insulation member 430 B includes insertion hole 431 B provided through a portion of heat insulation member 430 B.
- protrusion 421 B extending upward is provided at the portion corresponding to insertion hole 431 B.
- Heat insulation member 430 B is disposed on inner surface 420 b B of lower housing 420 B with protrusion 421 B held in insertion hole 431 B. As a result, heat insulation member 430 B is positioned relative to lower housing 420 B.
- heat insulation member 430 B is disposed on inner surface 420 b B of lower housing 420 B. This makes it possible to prevent, even when second hair holding part 40 B is made thinner, heat from being transmitted from heater 530 B to lower housing 420 B.
- second hair holding member 50 B serving as a portion of upper housing 230 B includes plate member 510 B.
- Plate member 510 B is also made of a material having high heat conductivity such as copper or aluminum.
- second hair holding member 50 B includes holding member 520 B, heater 530 B, and the like.
- Holding member 520 B is supported by lower housing 420 B of second hair holding part 40 B to hold plate member 510 B.
- Heater 530 B is heat-conductively coupled to plate member 510 B to transmit generated heat to plate member 510 B.
- Plate member 510 B includes plate part 540 B having an approximate plate shape (including a plate shape).
- Plate part 540 B includes second hair holding surface 560 B provided on a surface (upper surface) of plate part 540 B, second hair holding surface 560 B having an approximate flat shape (including a flat shape).
- second hair holding surface 560 B is provided in an approximate rectangular shape (including a rectangular shape) extending long and narrow in the longitudinal direction of second case 210 B in the plan view (as viewed from below).
- plate part 540 B has both ends in the Y direction (width direction: the same direction as the width direction of second hair holding part 40 B) bent toward the inside of second case 210 B. Then, at both ends of second hair holding surface 560 B in the Y direction (width direction), curved surface 562 B is provided in a convex shape that curves obliquely outward in the cross-sectional view in the width direction (plane cut along a vertical plane along the width direction).
- second hair holding surface 560 B includes flat surface 561 B (flat part) located at a center of second hair holding surface 560 B in the width direction and curved surfaces 562 B provided at both ends of fiat surface 561 B in the width direction.
- plate member 510 B includes a pair of legs 550 B continuously extending inward (downward) from a back surface (lower side) of plate part 540 B.
- the pair of legs 550 B are held by holding member 520 B.
- plate member 510 B is held by holding member 520 B.
- Heater 530 B is housed in housing 570 B provided between the pair of legs 550 B. At this time, heater 530 B housed in housing 570 B is disposed in contact with an inner surface of plate part 540 B.
- electrical components such as fuse 582 B and thermistor 583 B are housed adjacent to a back surface (lower side) of heater 530 B in housing 570 B.
- Examples of heater 530 B include a positive temperature coefficient heater (PTC) heater and the like.
- PTC positive temperature coefficient heater
- the use of the PTC heater allows stepless temperature control.
- the PTC heater need not necessarily be used as the heater, and another type of heater such as a nichrome wire heater may be used.
- the heater heat generator
- the heater may be provided in only either one of first hair holding part 40 A or second hair holding part 40 B.
- control device 340 B that controls heater 530 A and heater 530 B is housed in hollow space S 5 in second grip 30 B. Then, control device 340 B is capable of controlling, stepwise, the temperature of first hair holding surface 560 A and second hair holding surface 560 B.
- thermostat 582 A is attached to the back surface of plate part 540 A and is electrically coupled to control device 340 B. Then, using thermostat 582 A, control device 340 B controls the temperature of heater 530 A.
- thermistor 583 B is attached to the back surface of plate part 540 B and is electrically coupled to control device 340 B. Then, control device 340 B controls the temperature of heater 530 B by using resistance of thermistor 583 B, specifically, the resistance of thermistor 583 B that varies in a manner that depends on changes in temperature of heater 530 B.
- fuse 582 B is provided on the back surface of plate part 540 B. Then, fuse 582 B blows when a temperature of first hair holding surface 560 A or second hair holding surface 560 B exceeds a predetermined. temperature due to damage to control device 340 B or the like. As a result, the power to the heaters (heater 530 A and heater 530 B) is interrupted, which prevents a failure from occurring. Note that it is more preferable that the fuse be further provided on the back surface of plate part 540 A. This makes it possible to prevent a failure from occurring more reliably.
- holding member 520 B has an approximate mountain shape (including a mountain shape) that opens upward and protrudes downward in the cross-sectional view in the width direction.
- holding member 520 B includes bottom wall 521 B, side wall 522 B, lower flat part 521 a B, inclined part 521 b B, upper flat part 521 c B, and side wall 522 B.
- Side walls 522 B are provided extending upward from both ends of bottom wall 521 B in the Y direction.
- Lower flat part 521 a B is located at, the center in the Y direction (width direction) and is disposed at a lower position of bottom wall 521 B.
- Inclined part 521 b B is provided continuously extending from both ends of lower flat part 521 a B of bottom wall 521 B in the Y direction (width direction) and extend outward in the Y direction and upward.
- upper flat part 521 c B is provided continuously extending from both ends of inclined part 521 b B of bottom wall 521 B and horizontally extends outward in the Y direction. Then, as described above, side walls 522 B are provided continuously extending from both ends of upper flat part 521 c B of bottom wall 521 B in the Y direction.
- first hair holding part 40 A and second hair holding part 40 B are supported movable up and down in the vertical direction (direction of the normal) relative to upper housing 420 A of first hair holding part 40 A and lower housing 420 B of second hair holding part 40 B.
- This structure can prevent excessive load on the hair held between first hair holding surface 560 A and second hair holding surface 560 B. This can in turn prevent damage to hair.
- second hair holding part 40 B includes second float mechanism 60 B.
- Second float mechanism 60 B floatably holds second hair holding member 50 B relative to lower housing 420 B (see FIG. 9 and FIG. 10 ).
- Second float mechanism 60 B includes two float rubbers 610 B (float parts) that are elastically deformable. Float rubbers 610 B are arranged on the center in the Y direction (width direction) and spaced apart from each other in the X direction (front-back direction). Then, the elastic deformation of two float rubbers 610 B causes second hair holding member 50 B to move (float) relative to lower housing 420 B.
- Each float rubber 610 B of the present exemplary embodiment has an arrowhead shape in the cross-sectional view in the width direction, and includes neck part 611 B and arrowhead part 612 B, neck part 611 A being located on a base side of float rubber 610 B, and arrowhead part 612 A being located on a tip side of float rubber 610 B.
- Arrowhead part 612 B tapers down toward the tip side and includes flat surface 612 a B on a base side of arrowhead part 612 B, flat surface 612 a B being large in area.
- flat surface 612 b B smaller in area than flat surface 612 a B is provided on a tip of arrowhead part 612 B.
- Neck part 611 B is provided continuously extending from a center of flat surface 612 a B.
- Neck part 611 B located on the base side of float rubber 610 B is inserted into insertion hole 621 B provided through lower flat part 521 a B of bottom wall 521 B. This causes float rubber 610 B to be held by bottom wall 521 B of holding member 520 B.
- flat surface 612 a B of arrowhead part 612 B located on the base side (neck part 611 B side) is housed in space 623 B surrounded by rib 622 B provided on lower flat part 521 a B of bottom wall 521 B.
- flat surface 612 b B of arrowhead part 612 B located on the tip side (tapered portion) is housed in space 632 B surrounded by peripheral wall 631 B provided below protrusion 421 B of lower housing 420 B.
- This structure causes, according to the present exemplary embodiment, second hair holding member 50 B to be supported by lower housing 420 B via float rubbers 610 B that are elastically deformable. That is, second hair holding member 50 B is floatably held relative to lower housing 420 B. This allows second hair holding surface 560 B to swing in the direction of the normal to second hair holding surface 560 B (Z direction: vertical direction).
- the swing motion of second hair holding surface 560 B in the direction of the normal to second hair holding surface 560 B includes a linear motion of second hair holding surface 560 B in the direction of the normal to second hair holding surface 560 B.
- the swing motion further includes a relative motion of one end of second hair holding surface 560 B to the other end in the direction of the normal to second hair holding surface 560 B.
- the swing motion of second hair holding surface 560 B in the direction of the normal to second hair holding surface 560 B corresponds to the linear motion of second hair holding surface 560 B in the direction of the normal to second hair holding surface 560 B or a pivot motion of second hair holding surface 560 B on an axis along an XY plane.
- Second hair holding part 40 B of the present exemplary embodiment further includes second pivot mechanism 70 B as shown in FIG. 11 and FIG. 12 .
- Second pivot mechanism 70 B is structured to pivot second hair holding surface 560 B (second hair holding member 50 B) on second pivot axis 710 B extending in the X direction (front-back direction).
- second pivot mechanism 70 B includes second pivot piece 720 B and support part 730 B that slidably supports second pivot piece 720 B.
- Second pivot piece 720 B is provided, extending outward in the X direction, at both sides of holding member 520 B in the X direction. Second pivot piece 720 B has a convex shape that curves downward (Z direction). Further, concave surface 721 B provided on an upper side (side adjacent to second hair holding surface 560 B) of second pivot piece 720 B is slidably supported by support part 730 B.
- concave surface 721 B is provided in an arc shape centered on second pivot axis 710 B in the cross-sectional view in the width direction (Y direction).
- second groove part 711 B (see FIG. 13 ) is provided extending along the X direction (front-back direction: longitudinal direction) on the center of second hair holding surface 560 B in the Y direction (width direction).
- second groove part 711 B has a depth of about 1 mm, for example.
- Second groove part 711 B corresponds to second pivot axis 710 B. Therefore, according to the present exemplary embodiment, concave surface 721 B is provided in an arc shape centered on second groove part 711 B in the cross-sectional view in the width direction.
- second groove part 711 B is provided facing first groove part 711 A in the Z direction (thickness direction) when first arm 20 A and second arm 20 B are closed.
- Support part 730 B of second pivot mechanism 70 B includes two outer ribs 731 B and two inner ribs 732 B.
- Outer ribs 731 B are provided outside in the Y direction (width direction).
- Inner ribs 732 B are provided inside two outer ribs 731 B in the Y direction (width direction).
- Outer ribs 731 B and inner ribs 732 B are provided extending, toward lower housing 420 B, from the inner surface of upper housing 230 B adjacent to hollow space S 6 in second hair holding part 40 B shown in FIG. 6 .
- outer ribs 731 B and inner ribs 732 B on one side are provided on cover 330 B as upper housing 230 B.
- Outer ribs 731 B and inner ribs 732 B on the other side are provided on upper housing 230 B that covers the opening, located in front of second hair holding member 50 B, of lower housing 220 B.
- two inner ribs 732 B extend shorter than two outer ribs 731 B.
- concave surface 721 B of second pivot piece 720 B is brought into sliding contact with tips of two inner ribs 732 B.
- two outer ribs 731 B are structured to prevent second pivot piece 720 B from being misaligned in the Y direction (width direction). This structure prevents, when second hair holding surface 560 B (second hair holding member 50 B) is pivoted relative to lower housing 220 B, concave surface 721 B of second pivot piece 720 B from being out of sliding contact with the tips of two inner ribs 732 B.
- second pivot piece 720 B is pivotably supported by support part 730 B. This allows second hair holding surface 560 B to pivot on second groove part 711 B (second pivot axis 710 B) extending in the X direction (front-back direction).
- second pivot axis 710 B is an intangible shaft
- second pivot axis 710 B may be a tangible shaft.
- predetermined gap d is provided between first hair holding surface 560 A and second hair holding surface 560 B when first arm 20 A and second arm 20 B are closed.
- Predetermined gap d corresponds to a space provided between first hair holding surface 560 A and second hair holding surface 560 B.
- Second arm 20 B is structured as described above.
- discharge device 80 is disposed in hollow space S 3 in the first hair holding part 40 A as described above (see FIG. 6 ).
- Discharge device 80 generates ions and supplies the generated ions to the hair. This further increases hair care effects,
- discharge device 80 is provided at the above-described position, allowing hair iron 10 to he downsized in the Z direction (thickness direction).
- discharge device 80 is disposed at a portion of hollow space S 3 in first hair holding part 40 A that does not overlap first hair holding surface 560 A. That is, according to the present exemplary embodiment, discharge device 80 is disposed so as not to overlap first hair holding surface 560 A as viewed along the direction of the normal to first hair holding surface 560 A (Z direction: thickness direction). As described above, discharge device 80 is disposed to prevent the normal to first hair holding surface 560 A from intersecting discharge device 80 .
- discharge device 80 is disposed adjacent to an approximate center (including a center) of a short side (rear short side), adjacent to discharge device 80 , of first hair holding surface 560 A.
- partition 240 A that divides hollow space S 1 in first case 210 A into hollow space S 2 in first grip 30 A and hollow space S 3 in first hair holding part 40 A is disposed adjacent to the rear side in the X direction (front-back direction). Furthermore, according to the present exemplary embodiment, partition 240 A is disposed behind partition 240 B in the X direction (front-back direction). As a result, a length (length in the X direction) of first hair holding part 40 A provided in front of partition 240 A increases. This allows a relatively large space to be provided between partition 240 A and first hair holding surface 560 A (first hair holding member 50 A).
- Discharge device 80 is disposed in the space provided between partition 240 A and first hair holding surface 560 A (first hair holding member 50 A). That is, discharge device 80 is disposed adjacent to the short side (rear short side) of first hair holding surface 560 A.
- discharge device 80 is disposed on a center, in the Y direction (width direction), of the space provided between partition 240 A and first hair holding surface 560 A. As a result, discharge device 80 is disposed adjacent to the approximate center (including the center) of the short side (rear short side), adjacent to discharge device 80 , of first hair holding surface 560 A.
- discharge device 80 includes first electrode 810 and second electrode 820 (counter electrode: an electrode paired with first electrode 810 ) as shown in FIG. 15 .
- Second electrode 820 is disposed apart from first electrode 810 , and discharge is made between second electrode 820 and first electrode 810 (see FIG. 15 ).
- First electrode 810 and second electrode 820 are made of, for example, a transition metal such as stainless steel or titanium.
- discharge device 80 includes moisture-proof cover 830 that holds first electrode 810 and second electrode 820 .
- Moisture-proof cover 830 is provided in an approximate box shape (including a box shape) that opens upward and is held with first electrode 810 and second electrode 820 exposed in a hollow space inside moisture-proof cover 830 .
- First electrode 810 and second electrode 820 of discharge device 80 of the present exemplary embodiment are electrically coupled to control device 340 A via lead wire 581 shown in FIG. 6 . Then, a high voltage is applied across first electrode 810 and second electrode 820 . This allows discharge device 80 to cause discharge (corona discharge or the like).
- discharge device 80 examples include a charged particle generator that generates a charged particulate liquid (for example, mist) and a metal particle generator that generates metal particles.
- a charged particle generator that generates a charged particulate liquid (for example, mist)
- a metal particle generator that generates metal particles.
- the ions (charged particulate liquid such as mist or metal particles) generated by discharge device 80 are ejected toward the hair from ion ejection port 333 A.
- ion ejection port 333 A is provided in front of a portion of cover 330 A that covers the space provided between partition 240 A and first hair holding surface 560 A.
- cover 330 A has a front end portion inclined upward (toward upper housing 220 A).
- Cover 330 A has opening 334 A provided through the inclined part of the front end, opening 334 A having an approximate rectangular shape (including a rectangular shape).
- Opening 334 A communicates with hollow space S 3 (hollow space in moisture-proof cover 830 having an approximate box shape (including a box shape) shown in FIG. 15 ) in first hair holding part 40 A.
- Opening 334 A thus provided is divided into three openings having an approximate rectangular shape (including a rectangular shape) by two partitions walls 335 A disposed apart from each other in the Y direction (width direction). Then, among the three openings, openings provided on both sides in the Y direction (width direction) serve as ion ejection ports 333 A.
- ion ejection ports 333 A is disposed adjacent to a surface of first hair holding part 40 A that faces second hair holding part 40 B and a side of first hair holding surface 560 A adjacent to pivot joint 110 .
- Two ion ejection ports 333 A are provided communicating with discharge device 80 (hollow space in moisture-proof cover 830 ). That is, first electrode 810 and second electrode 820 of discharge device 80 thus arranged are exposed to ion ejection port 333 A.
- ion ejection ports 333 A thus provided are exposed to predetermined gap d (the space provided between first hair holding surface 560 A and second hair holding surface 560 B) shown in. FIG. 9 .
- ion ejection ports 333 A thus provided are capable of supplying the ions (negative ions or positive ions) or charged particulate liquid generated by discharge device 80 to the hair held between first hair holding surface 560 A and second hair holding surface 560 B.
- an opening provided at the center in the Y direction (width direction) serves as liquid intake port 332 A that introduces liquid that come from the hair into the hollow space in moisture-proof cover 830 having an approximate box shape (including a box shape) (see FIG. 13 and FIG. 14 ).
- ion ejection ports 333 A are arranged, with liquid intake port 332 A interposed between ion ejection ports 333 A, adjacent to both ends of the short side, adjacent to ion ejection ports 333 A, of first hair holding surface 560 A,
- liquid intake port 332 A of the present exemplary embodiment is disposed adjacent to the surface of first hair holding part 40 A that faces second hair holding part 40 B and the side of first hair holding surface 560 A adjacent to pivot joint 110 . Furthermore, liquid intake port 332 A is disposed adjacent to the approximate center (including the center) of the short side, adjacent to liquid intake port 332 A, of first hair holding surface 560 A.
- liquid intake port 332 A is provided communicating with discharge device 80 (hollow space in moisture-proof cover 830 ). Liquid intake port 332 A is disposed on approximately the same axis as first groove part 711 A (groove) (first pivot axis 710 A).
- liquid intake port 332 A is provided to introduce liquid such as water from the hair held between first hair holding surface 560 A and second hair holding surface 560 B into discharge device 80 .
- the liquid include, for example, a hair treatment agent and the like in addition to water.
- liquid intake port 332 A of the present exemplary embodiment thus disposed is further exposed to second groove part 711 B as shown in FIG. 8 .
- the above-described structure supplies, through liquid intake port 332 A from first groove part 711 A or second groove part 711 B, water that comes from the hair held between first hair holding surface 560 A and second hair holding surface 560 B to discharge device 80 .
- first groove part 711 A and second groove part 711 B serve as liquid passages through which liquid such as water is supplied to discharge device 80 .
- liquid intake port 332 A is provided to introduce liquid such as water from the hair held between first hair holding surface 560 A and second hair holding surface 560 B into discharge device 80 .
- ion ejection ports 333 A are provided to supply the ions (negative ions or positive ions) or charged particulate liquid generated by discharge between first electrode 810 and second electrode 820 to the hair held between first hair holding surface 560 A and second hair holding surface 560 B.
- liquid passages may be used for a discharge device configured to cause discharge in a state where liquid such as water is not condensed to generate only ions.
- a negative voltage may be applied across the electrodes to generate negative ions.
- a positive voltage may be applied across the electrodes of the discharge device to generate positive ions.
- the discharge device when the discharge device causes discharge, a negative voltage and a positive voltage may be alternately applied to generate negative ions and positive ions in an alternate manner.
- the discharge device may include a plurality of electrodes. With this structure, a negative voltage may be applied to any of the plurality of electrodes and a positive voltage may be applied to any of the other electrodes, so that negative ions and positive ions are generated simultaneously.
- discharge device 80 described in the present exemplary embodiment is merely an example, and any discharge device may be disposed at a portion that does overlap first hair holding surface 560 A.
- the user operates (turns on) operation switch 150 provided on hair iron 10 shown in FIG. 8 to apply power to the heaters (heater 530 A and heater 530 B).
- This causes the heaters (heater 530 A and heater 530 B) to generate heat, and the heat generated by the heaters (heater 530 A and heater 530 B) is transmitted from the heaters to plate part 540 A and plate part 540 B.
- plate part 540 A and plate part 540 B are heated.
- control device 340 A heats first hair holding surface 560 A and second hair holding surface 560 B to a predetermined temperature (for example, 170° C.). Then, when the temperature of first hair holding surface 560 A and second hair holding surface 560 B reaches the predetermined temperature, control device 340 A displays the temperature on indicator 160 provided on second arm 20 B shown in FIG. 8 . This notifies the user that the temperature of first hair holding surface 560 A and second hair holding surface 560 B has reached the predetermined temperature.
- indicator 160 is implemented by, for example, an LED or a light guide member.
- first hair holding surface 560 A and second hair holding surface 560 B heated to the predetermined temperature, the user puts his/her hair between first hair holding surface 560 A and second hair holding surface 560 B.
- first hair holding surface 560 A and second hair holding surface 560 B This allows the hair of the user to be suitably heated by first hair holding surface 560 A and second hair holding surface 560 B.
- the user rotates hair iron 10 by at least half a turn with the hair held between first hair holding surface 560 A and second hair holding surface 560 B. This causes a portion of the hair that is not held between first hair holding surface 560 A and second hair holding surface 560 B to be spirally wrapped around the outer surface (outer surface 420 a A or outer surface 420 a B).
- the user when the user wants to straighten his/her hair, the user slides, with the hair held, hair iron 10 along the hair toward the ends of the hair without rotating hair iron 10 . This straightens the hair.
- first electrode 810 and second electrode 820 of discharge device 80 causes discharge (corona discharge or the like). This generates ions (negative ions or positive ions) or charged particulate liquid. Then, the generated ions (negative ions or positive ions) or charged particulate liquid is ejected toward the hair through ion ejection port 333 A shown in FIG. 13 .
- first groove part 711 A and liquid intake port 332 A are arranged on approximately the same axis (including on the same axis). Therefore, even when first hair holding surface 560 A is pivoted, there occurs almost no change in positional relationship between first groove part 711 A and liquid intake port 332 A.
- second groove part 711 B is also disposed on approximately the same axis (including on the same axis) as liquid intake port 332 A. Therefore, even when second hair holding surface 560 B is pivoted with the hair held between first hair holding surface 560 A and second hair holding surface 560 B, there occurs almost no change in positional relationship between second groove part 711 B and liquid intake port 332 A.
- the above-described structure allows water in liquid passages (first groove part 711 A and second groove part 711 B) to reach liquid intake port 332 A more efficiently.
- ions generated by discharge device 80 are ejected forward from ion ejection port 333 A and are supplied to the hair held between first, hair holding surface 560 A and second hair holding surface 560 B.
- first electrode 810 and second electrode 820 of discharge device 80 causes the generated ions (negative ions or positive ions) or charged particulate liquid to be supplied to the hair. This makes the hair of the user curly or straighten.
- mist when a charged particle generator that generates mist is disposed as discharge device 80 , for example, dew condensation water is made into fine particles by discharge action such as corona discharge. As a result, extremely fine, nanometer-sized mist (negatively charged mist including negative ions) is generated and then supplied to the hair. As a result, the hair can be moisturized.
- metal particles metal molecules, ions, or the like
- discharge device 80 metal particles (metal molecules, ions, or the like) are emitted from first electrode 810 , second electrode 820 , or the like by discharge action such as corona discharge. Then, the emitted metal particles are supplied to the hair.
- first electrode and second electrode of the metal particle generator may be made of a transition metal (such as gold, silver, copper, platinum, zinc, titanium, rhodium, palladium, iridium, ruthenium, or osmium) alone, an alloy of such transition metals, a member that results from plating the transition metal, or the like.
- a transition metal such as gold, silver, copper, platinum, zinc, titanium, rhodium, palladium, iridium, ruthenium, or osmium
- the metal particles generated by and ejected from a discharge part of the metal particle generator contain gold, silver, copper, zinc, or the like, the metal particles containing such metal can exert an antibacterial effect. Further, when the metal particles contain platinum, zinc, titanium, or the like, the metal particles containing such metal can exert an antioxidant effect.
- a portion for example, an electrode that serves as a ground electrode
- tungsten can be made of, for example, stainless steel or tungsten.
- the discharge part of the metal particle generator may generate ions (for example, negative ions such as NO 2 - or NO 3 -) by discharge action, and bring the generated ions into collision with the first electrode, the second electrode, a member containing a different metal material or metal component, or the like to generate metal particles.
- the second electrode or the other member is made of a material containing the transition metal. Then, metal particles may be released from the material containing the transition metal.
- the above-described structure can effectively prevent, when the hair is treated using hair iron 10 , damage to the hair due to the treatment.
- hair iron 10 includes first hair holding part 40 A including first hair holding surface 560 A and second hair holding part 40 B including second hair holding surface 560 B configured to face first hair holding surface 560 A. Then, hair iron 10 holds the hair with first hair holding surface 560 A and second hair holding surface 560 B facing each other.
- hair iron 10 includes discharge device 80 that generates ions, and ion ejection port 333 A that discharges the ions generated by discharge device 80 . Then, discharge device 80 is disposed at a portion of first hair holding part 40 A that does not overlap first hair holding surface 560 A.
- hair care effects can be further increased.
- discharge device 80 is disposed at the portion of first hair holding part 40 A that does not overlap first hair holding surface 560 A. This can make first hair holding part 40 A thinner. This can in turn make the height (thickness) of hair iron 10 small.
- the above-described structure of hair iron 10 according to the present exemplary embodiment can make downsizing in the thickness direction while increasing hair care effects.
- the downsizing in the thickness direction allows hair iron 10 that is in use to be moved closer to the roots of the hair. This further allows hair iron 10 to hold a portion of the hair more adjacent to the roots. As a result, the treatment performance of hair iron 10 can be further increased.
- first hair holding surface 560 A may interfere with discharge device 80 . This may disallow the application of the structure where first hair holding surface 560 A is supported pivotably and floatably.
- discharge device 80 is disposed at the portion of first hair holding part 40 A that does not overlap first hair holding surface 560 A. Accordingly, discharge device 80 is not present in either a pivot range or float support range of first hair holding surface 560 A. Therefore, it is possible to apply the structure where first hair holding surface 560 A is pivotably and floatably supported more reliably.
- ion ejection port 333 A may be disposed in first hair holding part 40 A.
- ion ejection port 333 A is disposed at a portion of first hair holding part 40 A that is exposed to the space between first hair holding surface 560 A and second hair holding surface 560 B. This makes it possible to supply a sufficient amount of ions to the hair.
- first hair holding surface 560 A may include first groove part (groove) 711 A extending along the longitudinal direction of first hair holding surface 560 A,
- first groove part (groove) 711 A serves as a liquid passage for supplying liquid such as water that comes from the hair held between first hair holding surface 560 A and second hair holding surface 560 B to discharge device 80 .
- liquid such as water that comes from the hair held between first hair holding surface 560 A and second hair holding surface 560 B to be easily supplied to discharge device 80 .
- This can promote stable generation of ionic components.
- Hair iron 10 may further include liquid intake port 332 A connected to discharge device 80 , and first groove part (groove) 711 A and liquid intake port 332 A may be arranged substantially coaxially with each other.
- hair iron 10 includes liquid intake port 332 A connected to discharge device 80 , and first groove part (groove) 711 A and liquid intake port 332 A are arranged on approximately the same axis (including on the same axis). This makes it possible to supply liquid such as water that comes from the hair to discharge device 80 more efficiently.
- first hair holding surface 560 A may be configured to pivot on first pivot axis 710 A, and first groove part (groove) 711 A may serve as first pivot axis 710 A.
- first hair holding surface 560 A pivotable while minimizing a position change of first groove part (groove) 711 A.
- liquid such as water that comes from the hair can he supplied to discharge device 80 more efficiently regardless of a pivot state of first hair holding surface 560 A.
- first hair holding part 40 A may include float rubber 610 A (float part) that causes first hair holding surface 560 A to swing in the direction of the normal to first hair holding surface 560 A.
- first hair holding surface 560 A and the hair to come into contact with each other more reliably. This can in turn further increase heating efficiency for hair. Furthermore, adhesion of first hair holding surface 560 A to the hair can be further increased. Therefore, when the hair is straightened, the straightness of the hair can be further increased.
- second hair holding part 40 B may include float rubber 610 B (float part) that causes second hair holding surface 560 B to swing in the direction of the normal to second hair holding surface 560 B.
- second hair holding surface 560 B and the hair to come into contact with each other more reliably. Therefore, heating efficiency for the hair can be further increased. Furthermore, adhesion of second hair holding surface 560 B to the hair can be further increased. Therefore, when the hair is straightened, the straightness of the hair can be further increased.
- the present disclosure is applicable to a hair iron in which the first hair holding surface and the second hair holding surface can come into contact with each other.
- the structure according to the above-described exemplary embodiment has been described as an example where the second electrode faces the first electrode, but the present disclosure is not limited to such a structure.
- a structure may be applied where the second electrode does not face the first electrode.
- the structure according to the above-described exemplary embodiment has been described as an example where the first electrode and the second electrode are provided, but the present disclosure is not limited to such a structure.
- a structure may be applied where the second electrode is not provided, and discharge is made between the first electrode and a constituent member located in the vicinity of the first electrode.
- the structure according to the above-described exemplary embodiment has been described as an example where the discharge part is provided in the first hair holding part serving as the upper hair holding part, but the present disclosure is not limited to such a structure.
- another discharge device may be provided in the second hair holding part serving as the lower hair holding part.
- the discharge device may be provided only in the second hair holding part.
- the discharge device is provided only in the lower hair holding part, the lower hair holding part corresponds to the first hair holding part, and the upper hair holding part corresponds to the second hair holding part according to the present exemplary embodiment.
- the structure according to the above-described exemplary embodiment has been described as an example where the hair iron includes the first grip in addition to the first hair holding part, but the present disclosure is riot limited to such a structure.
- a structure may be applied where, in the hair iron, a portion of the first hair holding part serves as a grip, and the discharge device is disposed in the grip that is a portion of the first hair holding part.
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Abstract
Description
- The present disclosure relates to a hair iron.
- Unexamined Japanese Patent Publication No. 2018-102540 (hereinafter, referred to as PTL 1) discloses a conventional hair iron including a first hair holding part including a first hair holding surface, and a second hair holding part including a second hair holding surface configured to face the first hair holding surface.
- The hair iron disclosed in
PTL 1 is a device that holds hair with the first hair holding surface and the second hair holding surface facing each other to apply hair care to the hair. - The hair iron disclosed in.
PTL 1 further includes a discharge device that generates ions, and an ion ejection port configured to eject the ions generated by the discharge device toward the hair. This makes it possible to further increase hair care effects of the hair iron. - However, in the conventional hair iron described above, the discharge device is disposed at a portion that overlaps the first hair holding surface. Specifically, the discharge device is disposed at a position where the discharge device and the first hair holding surface overlap each other as viewed along a direction of a normal to the first hair holding surface. This may lead to an increase in thickness of the hair iron (a size of the first hair holding surface in the direction of the normal).
- The present disclosure provides a hair iron that can be downsized in a thickness direction while increasing hair care effects.
- A hair iron according to the present disclosure includes a first hair holding part including a first hair holding surface, and a second hair holding part including a second hair holding surface configured to Pace the first hair holding surface. Further, the hair iron holds hair with the first hair holding surface and the second hair holding surface facing each other. The hair iron further includes a discharge device that generates ions, and an ion ejection port that ejects the ions generated by the discharge device. Then, the discharge device is disposed at a portion of the first hair holding part that does not overlap with the first hair holding surface.
- According to the present disclosure, it is possible to provide a hair iron that can be downsized in the thickness direction while increasing the hair care effects.
-
FIG. 1 is a plan view of a hair iron according to an exemplary embodiment; -
FIG. 2 is a hack view of the hair iron according to the exemplary embodiment; -
FIG. 3 is a side view of the hair iron according to the exemplary embodiment, showing a state where a first hair holding surface faces a second hair holding surface; -
FIG. 4 is a side view of the hair iron according to the exemplary embodiment, showing a state where a first hair holding part and second hair holding part are spaced apart from each other; -
FIG. 5 is a horizontal cross-sectional view of a pivot joint included in the hair iron according to the exemplary embodiment; -
FIG. 6 is a cross-sectional view taken along line 6-6 ofFIG. 1 ; -
FIG. 7 is a diagram showing a first arm of the hair iron according to the exemplary embodiment as viewed from the first hair holding surface side; -
FIG. 8 is a diagram showing a second arm of the hair iron according to the exemplary embodiment as viewed from the second hair holding surface side; -
FIG. 9 is a transverse cross-sectional view of the hair iron according to the exemplary embodiment taken along a plane orthogonal to a front-back direction, showing a portion where a front float rubber is disposed; -
FIG. 10 is a transverse cross-sectional view of the hair iron according to the exemplary embodiment taken along a plane orthogonal to the front-back direction, showing a portion where a rear float rubber is disposed; -
FIG. 11 is a cross-sectional view taken along line 11-11 of FIG, 3; -
FIG. 12 is a cross-sectional view taken along line 12-12 ofFIG. 3 ; -
FIG. 13 is a perspective view of the hair iron according to the exemplary embodiment, showing a state where the hair iron is opened with the first arm located at a lower side; -
FIG. 14 is a perspective view of the hair iron according to the exemplary embodiment, showing an ion ejection port and a liquid intake port; and -
FIG. 15 is a diagram showing a discharge device disposed in a hollow space in the hair iron according to the exemplary embodiment. - An exemplary embodiment of the present disclosure will be described below with reference to the drawings. Note that, for the following description, a vertical direction is defined on the basis of a hair iron in a state where a first hair holding surface and a second hair holding surface are brought close to each other (a first hair holding part and the second hair holding part are closed), and the first hair holding surface is located over the second hair holding surface. Further, the description will be given with a hair holding part side of the hair iron defined as a front side and a grip side defined as a rear side.
- Furthermore, the description will be given with a front-back direction based on the above-described principle (longitudinal direction of the first hair holding surface and second hair holding surface) defined as an X direction, a width direction (lateral direction of the first hair holding surface and second hair holding surface) defined as a Y direction, and a vertical direction (thickness direction of the first hair holding part and second hair holding part based on the above-described principle) defined as a Z direction.
- Hereinafter, a schematic structure of
hair iron 10 according to the exemplary embodiment of the present disclosure will be described with reference toFIG. 1 toFIG. 4 . -
Hair iron 10 according to the present exemplary embodiment includes, as shown inFIG. 1 toFIG. 4 ,first arm 20A (upper arm) andsecond arm 20B (lower arm) joined together withpivot joint 110,first arm 20A andsecond arm 20B being pivotable into an approximate V shape (including a V shape).First arm 20A andsecond arm 20B are relatively pivoted atpivot joint 110. This allowsfirst arm 20A andsecond arm 20B ofhair iron 10 to come into contact with or separate from each other at their respective ends. - That is, in
hair iron 10 of the present exemplary embodiment,first arm 20A andsecond arm 20B are relatively pivotable. This allows firsthair holding surface 560A and secondhair holding surface 560B, which will be described later, to come closer to or separate from each other. - Next,
pivot joint 110 ofhair iron 10 will be described with reference toFIG. 5 . - As shown in
FIG. 5 ,pivot joint 110 includesshaft 111 includinghead 111 a androd 111 b,screw 112 fitted intorod 111 b, andshaft cover 113 that covers a head ofscrew 112. -
Pivot joint 110 includes a pair ofprotrusions 114 provided at a rear end offirst case 210A offirst arm 20A, which will be described later, in the X direction (front-back direction). Note that, according to the present exemplary embodiment, the pair ofprotrusions 114 have an approximate disc shape (including a disc shape) and extends downward from both ends offirst case 210A in the Y direction (width direction). Through-hole 114 a is provided through a center of eachprotrusion 114 in the Y direction (width direction). -
Pivot joint 110 includesprotrusion 115 provided at a rear end ofsecond case 210B ofsecond arm 20B, which will be described later, in the X direction (front-back direction). Note that, according to the present exemplary embodiment,protrusion 115 has an approximate cylindrical shape (including a cylindrical shape) and extends upward fromsecond case 210B. Through-hole 115 a is provided through a center ofprotrusion 115 in the Y direction (width direction). -
Pivot joint 110 further includescoil spring 116.Coil spring 116 is housed in a space provided inprotrusion 115 having an approximate cylindrical shape (including a cylindrical shape). -
Pivot joint 110 structured as described above is provided by the following method, for example. - Specifically, first,
coil spring 116 is disposed in the space inprotrusion 115. - Next, the pair of
protrusions 114 are arranged at both ends ofprotrusion 115 in the Y direction (width direction). At this time, through-hole 114 a and through-hole 115 a communicate with each other in the Y direction (width direction). - Next,
rod 111 b ofshaft 111 is inserted from one side in the Y direction (width direction) into through-hole 114 a and through-hole 115 a that communicate with each other in the Y direction (width direction). - Next,
screw 112 is inserted into through-hole 114 a and through-hole 115 a from the other side in the Y direction (width direction) and fitted intorod 111 b ofshaft 111. - Next,
shaft cover 113 is attached from the other side in the Y direction (width direction). As a result, the head ofscrew 112 is covered byshaft cover 113 to prevent the head from being exposed to the outside. - As described above,
first arm 20A andsecond arm 20B are relatively pivotable at pivot joint 110. -
Coil spring 116 applies force tofirst arm 20A andsecond arm 20B to cause bothfirst arm 20A andsecond arm 20B to pivot outward. - Hereinafter,
lock mechanism 120 ofhair iron 10 will be described with reference toFIG. 5 . - As shown in
FIG. 6 ,hair iron 10 of the present exemplary embodiment includeslock mechanism 120 disposed atrear end 10 a ofhair iron 10.Lock mechanism 120 restricts, when operated, the outward pivot motion offirst arm 20A andsecond arm 20B. Alternatively,lock mechanism 120 holds, when operated,first arm 20A andsecond arm 20B in a closed state. - Specifically,
lock mechanism 120 includesslide lock plate 121, restrictingprotrusion 122, and the like.Slide lock plate 121 is slidably attached to a rear end of an upper portion ofsecond case 210B in the X direction (front-back direction). Restrictingprotrusion 122 is provided at a front end ofslide lock plate 121 and extends upward (Z direction). -
Lock mechanism 120 further includes restrictingrecess 123 provided at a rear end of a lower portion offirst case 210A and restrictingprotrusion 124 provided in front of restrictingrecess 123. - Restricting
recess 123 is provided to face restrictingprotrusion 122 ofslide lock plate 121 whenslide lock plate 121 is slid rearward in the X direction (front-back direction). - Further, restricting
protrusion 124 is provided to face restrictingprotrusion 122 ofslide lock plate 121 whenslide lock plate 121 is slid forward in the X direction (front-back direction). - That is, when
slide lock plate 121 is slid forward, a lower end of restrictingprotrusion 124 comes into contact with an upper end of restrictingprotrusion 122 ofslide lock plate 121. This holdsfirst arm 20A andsecond arm 20B in the closed state. - As described above, in
hair iron 10 according to the present exemplary embodiment,coil spring 116 applies force tofirst arm 20A andsecond arm 20B so as to cause bothfirst arm 20A andsecond arm 20B to pivot outward. However, whenlock mechanism 120 is operated as described above, the outward pivot motion offirst arm 20A andsecond arm 20B is restricted. - On the other hand, when
slide lock plate 121 oflock mechanism 120 is slid rearward, the contact with restrictingprotrusion 124 is released. This allowsfirst arm 20A andsecond arm 20B to pivot outward. - The outward pivot motion of
first arm 20A andsecond arm 20B continues until restrictingprotrusion 122 ofslide lock plate 121 engages with restrictingrecess 123. This restricts further outward pivot motion offirst arm 20A andsecond arm 20B. - Further, on sides of
first arm 20A andsecond arm 20B adjacent to pivot joint 110 (rear side ofhair iron 10 in the X direction),first grip 30A (upper grip) andsecond grip 30B (lower grip) are provided respectively. On tip sides offirst arm 20A andsecond arm 20B (front side ofhair iron 10 in the X direction), firsthair holding part 40A (upper hair holding part) and secondhair holding part 40B (lower hair holding part) are provided respectively. - First
hair holding part 40A includes firsthair holding surface 560A (upper hair holding surface) that can come close to or separate from (can face) secondhair holding surface 560B whenfirst arm 20A is pivoted relative tosecond arm 20B. On the other hand, secondhair holding part 40B includes secondhair holding surface 560B (lower hair holding surface) that can come close to or separate from (can face) firsthair holding surface 560A whensecond arm 20B is pivoted relative tofirst arm 20A. - Note that first
hair holding surface 560A and secondhair holding surface 560B of the present exemplary embodiment each have an approximate rectangular shape (including a rectangular shape) extending long and narrow in the X direction (front-back direction) as viewed along the Z direction (vertical direction: direction of the normal). - Further, as shown in
FIG. 9 , firsthair holding part 40A and secondhair holding part 40B of the present exemplary embodiment have their respective outer surfaces 420 aA and 420 aB formed in a curved shape, Accordingly, hair is easily wrapped around outer surface 420 aA or outer surface 420 aB. This can make the hair curly. - Note that outer surface 420 aA of first
hair holding part 40A is a portion of the outer surface of firsthair holding part 40A located on an opposite side from firsthair holding surface 560A. Further, outer surface 420 aB of secondhair holding part 40B is a portion of the outer surface of secondhair holding part 40B located on an opposite side from secondhair holding surface 560B. - That is, in
FIG. 9 , a portion, other than a lower surface, of the outer surface of firsthair holding part 40A, and a portion, other than an upper surface, of the outer surface of secondhair holding part 40B serve as outer surface 420 aA of firsthair holding part 40A and outer surface 420 aB of secondhair holding part 40B, respectively. - Furthermore, as shown in
FIG. 9 , firsthair holding part 40A and secondhair holding part 40B includeheater 530A andheater 530B, respectively,heater 530A andheater 530B being provided as heat generators. - Further, as shown in
FIG. 1 ,hair iron 10 includespower supply cord 140 attached torear end 10 a viarotary connector 130.Power supply cord 140 is electrically coupled to, vialead wire 581,control device 340B (electrical component) that controlsheater 530A andheater 530B shown inFIG. 6 . -
Hair iron 10 further includesoperation switch 150 shown inFIG. 8 .Operation switch 150 allows a user to turn on or off power toheater 530A andheater 530B. - The use of
hair iron 10 structured as described above can make the hair curly or straighten the hair. - That is, with
hair iron 10, first, the hair is held between firsthair holding surface 560A and secondhair holding surface 560B. Then, heat generated byheater 530A andheater 530B is applied to the hair through firsthair holding surface 560A and secondhair holding surface 560B. This can make the hair curly or straighten the hair. - Specifically, for example, the hair is made curly as follows.
- First, first
hair holding part 40A and secondhair holding part 40B that have been heated are made to face each other. Then, between firsthair holding part 40A and secondhair holding part 40B, the hair is disposed extending in the width direction (Y direction) of firsthair holding part 40A and secondhair holding part 40B. In this state, the hair is held between firsthair holding surface 560A and secondhair holding surface 560B. - Next, with the hair held,
hair iron 10 is rotated, for example, about the X direction. This presses a root side of the hair that is not held between firsthair holding surface 560A and secondhair holding surface 560B against outer surface 420 aA of firsthair holding part 40A or outer surface 420 aB of secondhair holding part 40B. Then, with the hair pressed against outer surface 420 aA or outer surface 420 aB,hair iron 10 is slid along the hair toward the ends of the hair. This makes the hair curly. - On the other hand, the hair is straightened as follows.
- First, the hair is held between first
hair holding surface 560A and secondhair holding surface 560B. In this state,hair iron 10 is slid along the hair toward the ends of the hair without being rotated. This straightens the hair, - That is,
hair iron 10 according to the present exemplary embodiment makes hairdressing by applying heat to the hair for hair setting. - Hereinafter,
first arm 20A given above will be described in more detail. - As shown in
FIG. 1 ,first arm 20A primarily includesfirst case 210A serving as an outer shell. Then, a side offirst case 210A adjacent to pivot joint 110 (rear side ofhair iron 10 in the X direction) serves asfirst grip case 310A serving as an outer shell offirst grip 30A. On the other hand, a tip side offirst case 210A (front side ofhair iron 10 in the X direction) serves as first hair holdingpart case 410A serving as an outer shell of firsthair holding part 40A. -
First case 210A of the present exemplary embodiment includesupper housing 220A andlower housing 230A,upper housing 220A that opens downward having the opening covered withlower housing 230A to form a hollow shape. - Specifically, an opening of
upper housing 320A offirst grip 30A that opens downward is covered withcover 330A. As a result,first grip case 310A is provided in a hollow shape. Further, an opening ofupper housing 420A of firsthair holding part 40A that opens downward is covered with firsthair holding member 50A. As a result, first hair holdingpart case 410A is provided. As described above,upper housing 220A of the present exemplary embodiment includesupper housing 320A offirst grip 30A andupper housing 420A of firsthair holding part 40A. On the other hand,lower housing 230A includescover 330A and firsthair holding member 50A. - Note that, according to the present exemplary embodiment,
upper housing 320A offirst grip 30A andupper housing 420A of firsthair holding part 40A are integrally provided. That is, a side ofupper housing 220A adjacent to pivot joint 110 serves asupper housing 320A offirst grip 30A. On the other hand, a tip side ofupper housing 220A serves asupper housing 420A of firsthair holding part 40A. - Further, cover 330A and first
hair holding member 50A are separately provided and are each attached toupper housing 220A to cover the opening ofupper housing 220A to formlower housing 230A. - Further, according to the present exemplary embodiment, as shown in
FIG. 6 ,partition 240A divides hollow space S1 infirst case 210A into hollow space S2 infirst grip 30A and hollow space S3 in firsthair holding part 40A. -
Partition 240A includeswall 221A,wall 331A,gasket 250A, and the like.Wall 221A is provided extending downward in the Z direction from an inner side (lower surface side) of a center ofupper housing 220A in the X direction (longitudinal direction: front-back direction).Wall 331A is provided extending upward in the Z direction from an inner side (upper surface side) on a front side ofcover 330A in the X direction.Gasket 250A is held betweenwall 221A andwall 331A. As a result,partition 240A is provided. - Herein, according to the present exemplary embodiment, a portion of
first arm 20A located behindpartition 240A serves asfirst grip 30A, and a portion offirst arm 20A located in front ofpartition 240A serves as firsthair holding part 40A. That is, inhair iron 10 according to the present exemplary embodiment, a portion on a tip side (in front ofwall 331A) ofcover 330A serves as a portion of first hair holdingpart case 410A. - Various electrical components are housed in hollow space S2 in
first grip 30A and hollow space S3 in firsthair holding part 40A shown inFIG. 6 . - Specifically, according to the present exemplary embodiment, electronic components (electrical components) such as
control device 340A are housed in hollow space S2 infirst grip 30A. Discharge device 600 (electrical component),thermostat 582A (electronic component: electrical component), and the like are housed in hollow space S3 in firsthair holding part 40A. - The above-described layout increases a watertight effect for electronic components (electrical components) such as
control device 340A housed in hollow space S2 infirst grip 30A. - Note that
control device 340A and discharge device 600 (electrical components) are electrically coupled to each other vialead wire 581 passing through an insertion hole provided throughgasket 250A. - Further, according to the present exemplary embodiment, as shown in
FIG. 3 ,front end 222A (end on the front side in the X direction) ofupper housing 220A is curved downward (toward firsthair holding surface 560A). That is, the curvature offront end 222A allows the user to easily holdfront end 222A when usinghair iron 10. Further, protrusion 222 aA is provided atfront end 222A. Protrusion 222 aA serves as a slip stopper when the user holdsfront end 222A. Note that protrusion 222 aA is further capable of dissipating heat transmitted fromheater 530A tofront end 222A (knob to be held by the user). - Further, according to the present exemplary embodiment, as shown in
FIG. 9 ,heat insulation member 430A is provided on inner surface 420 bA ofupper housing 420A.Heat insulation member 430A prevents heat from being transmitted fromheater 530A toupper housing 420A. Note thatheat insulation member 430A is provided along inner surface 420 bA having a concave shape ofupper housing 420A.Heat insulation member 430A includesinsertion hole 431A provided through a portion ofheat insulation member 430A. - On the other hand,
protrusion 421A extending downward (extending toward firsthair holding member 50A) is provided at the portion ofheat insulation member 430A corresponding toinsertion hole 431A. -
Heat insulation member 430A is disposed on inner surface 420 bA ofupper housing 420A with theprotrusion 421A held ininsertion hole 431A. As a result,heat insulation member 430A is positioned relative toupper housing 420A. - That is,
heat insulation member 430A is disposed on inner surface 420 bA ofupper housing 420A. This makes it possible to prevent, even when firsthair holding part 40A is made thinner, heat from being transmitted fromheater 530A toupper housing 420A. - Further, as shown in
FIG. 9 , firsthair holding member 50A serving as a portion oflower housing 230A includesplate member 510A.Plate member 510A is made of a material having high heat conductivity such as copper or aluminum. - First
hair holding member 50A further includes holdingmember 520A,heater 530A, and the like. Holdingmember 520A is supported byupper housing 420A of firsthair holding part 40A to holdplate member 510A.Heater 530A is heat-conductively coupled toplate member 510A to transmit generated heat toplate member 510A. -
Plate member 510A includesplate part 540A having an approximate plate shape (including a plate shape).Plate part 540A includes firsthair holding surface 560A provided on a surface (lower surface) ofplate part 540A, firsthair holding surface 560A having an approximately flat shape (including a flat shape). According to the present exemplary embodiment, firsthair holding surface 560A is provided in an approximate rectangular shape (including a rectangular shape) extending long and narrow in the longitudinal direction offirst case 210A in the plan view (as viewed from below). - Further, as shown in
FIG. 9 ,plate part 540A has both ends in the Y direction (width direction: the same direction as the width direction of firsthair holding part 40A) bent toward the inside offirst case 210A. Then, at both ends of firsthair holding surface 560A in the Y direction (width direction),curved surface 562A is provided in a convex shape that curves obliquely outward in the cross-sectional view in the width direction (plane cut along a vertical plane along the width direction). - That is, first
hair holding surface 560A includesflat surface 561A (flat part) located at a center of firsthair holding surface 560A in the width direction andcurved surfaces 562A provided at both ends offlat surface 561A in the width direction. - Further,
plate member 510A includes a pair oflegs 550A continuously extending inward (upward) from a back surface (upper side) ofplate part 540A. The pair oflegs 550A are held by holdingmember 520A. As a result,plate member 510A is held by holdingmember 520A.Heater 530A is housed inhousing 570A provided between the pair oflegs 550A. At this time,heater 530A housed inhousing 570A is disposed in contact with an inner surface ofplate part 540A. - Furthermore, as shown in
FIG. 6 , electrical components such asthermostat 582A are housed adjacent to a back surface (lower side) ofheater 530A inhousing 570A. - Examples of
heater 530A include a positive temperature coefficient (PTC) heater and the like. The use of the FTC heater allows stepless temperature control. However, the PTC heater need not necessarily be used as the heater, and another type of heater such as a nichrome wire heater may be used. - Further, as shown in
FIG. 9 , holdingmember 520A has an approximate mountain shape (including a mountain shape) that opens downward and protrudes upward in the cross-sectional view in the width direction. - Specifically, holding
member 520A includestop wall 521A,side wall 522A, upper flat part 521 aA, inclined part 521 bA, lower flat part 521 cA, andside wall 522A.Side walls 522A are provided extending downward from both ends oftop wall 521A in the Y direction. Upper flat part 521 aA is located at a center of holdingmember 520A in the Y direction (width direction) and is disposed at an upper position oftop wall 521A. Inclined part 521 bA. is provided continuously extending from both ends, in the Y direction, of upper flat part 521 aA oftop wall 521A and extends outward in the Y direction and downward. Further, lower flat part 521 cA is provided continuously extending from both ends of inclined part 521 bA oftop wall 521A and horizontally extends outward in the Y direction. Then, as described above,side walls 522A are provided continuously extending from both ends, in the Y direction, of lower flat part 521 cA oftop wall 521A. - Note that a structure is preferably employed where at least one of first
hair holding part 40A and secondhair holding part 40B is supported movable up and down in the vertical direction (direction of the normal) relative toupper housing 420A of firsthair holding part 40A andlower housing 420B of secondhair holding part 40B. This structure can prevent excessive load on the hair held between firsthair holding surface 560A and secondhair holding surface 560B. This can in turn prevent damage to hair. - According to the present exemplary embodiment, first
hair holding part 40A includesfirst float mechanism 60A.First float mechanism 60A floatably holds firsthair holding member 50A relative toupper housing 420A (seeFIG. 9 andFIG. 10 ). -
First float mechanism 60A includes twofloat rubbers 610A (float parts) that are elastically deformable.Float rubbers 610A are arranged on the center of firsthair holding part 40A in the Y direction (width direction) and spaced apart from each other in the X direction (front-back direction). Then, the elastic deformation of twofloat rubbers 610A causes firsthair holding member 50A to move (float) relative toupper housing 420A. - Each
float rubber 610A of the present exemplary embodiment has an arrowhead shape in the cross-sectional view in the width direction, and includesneck part 611A andarrowhead part 612A,neck part 611A being located on a base side offloat rubber 610A, andarrowhead part 612A being located on a tip side offloat rubber 610A.Arrowhead part 612A tapers down toward the tip side and includes flat surface 612 aA on a base side ofarrowhead part 612A, flat surface 612 aA being large in area. On the other hand, on a tip ofarrowhead part 612A, flat surface 612 bA smaller in area than flat surface 612 aA is provided.Neck part 611A is provided continuously extending from a center of flat surface 612 aA. -
Neck part 611A located on the base side offloat rubber 610A is inserted intoinsertion hole 621A provided through upper flat part 521 aA oftop wall 521A. This causesfloat rubber 610A to be held bytop wall 521A of holdingmember 520A. At this time, flat surface 612 aA located on the base side (neck part 611A side) ofarrowhead part 612A is housed inspace 623A surrounded byrib 622A. provided on upper flat part 521 aA oftop wall 521A. - On the other hand, flat surface 612 bA located on the tip side (tapered portion side) of
arrowhead part 612A is housed inspace 632A surrounded byperipheral wall 631A provided onprotrusion 421A ofupper housing 420A. - This structure causes, according to the present exemplary embodiment, first
hair holding member 50A to be supported byupper housing 420A viafloat rubbers 610A that are elastically deformable. That is, firsthair holding member 50A is floatably held relative toupper housing 420A. This allows firsthair holding surface 560A to swing in the direction of the normal to firsthair holding surface 560A (Z direction: vertical direction). - Note that, the swing motion of first
hair holding surface 560A in the direction of the normal to firsthair holding surface 560A includes a linear motion of firsthair holding surface 560A in the direction of the normal to firsthair holding surface 560A. The swing motion further includes a relative motion of one end of firsthair holding surface 560A to the other end in the direction of the normal to firsthair holding surface 560A. - That is, according to the present exemplary embodiment, the swing motion of first
hair holding surface 560A in the direction of the normal to firsthair holding surface 560A corresponds to the linear motion of firsthair holding surface 560A in the direction of the normal to firsthair holding surface 560A or a pivot motion of firsthair holding surface 560A on an axis along an XY plane. - First
hair holding part 40A of the present exemplary embodiment further includesfirst pivot mechanism 70A, as shown inFIG. 11 andFIG. 12 .First pivot mechanism 70A is structured to pivot firsthair holding surface 560A (firsthair holding member 50A) onfirst pivot axis 710A extending in the X direction (front-back direction). - Specifically,
first pivot mechanism 70A includesfirst pivot piece 720A and supportpart 730A that slidably supportsfirst pivot piece 720A. -
First pivot piece 720A is provided, extending outward in the X direction, at both sides of holdingmember 520A in the X direction.First pivot piece 720A has a convex shape that curves upward (Z direction). Then,concave surface 721A provided on a lower side (side adjacent to firsthair holding surface 560A) offirst pivot piece 720A is slidably supported bysupport part 730A. - That is,
concave surface 721A is provided in an arc shape centered onfirst pivot axis 710A in the cross-sectional view in the width direction (Y direction). - Herein, according to the present exemplary embodiment,
first groove part 711A (groove, seeFIG. 13 ) is provided extending along the X direction (front-back direction: longitudinal direction) on the center of firsthair holding surface 560A in the Y direction (width direction).First groove part 711A has a depth of about 1 mm, for example.First groove part 711A corresponds tofirst pivot axis 710A. Therefore, according to the present exemplary embodiment,concave surface 721A is provided in an arc shape centered onfirst groove part 711A in the cross-sectional view in the width direction. -
Support part 730A offirst pivot mechanism 70A includes twoouter ribs 731A and twoinner ribs 732A.Outer ribs 731A are provided outside in the Y direction (width direction).Inner ribs 732A are provided inside twoouter ribs 731A in the Y direction (width direction). -
Outer ribs 731A andinner ribs 732A are provided extending, towardupper housing 420A, from the inner surface oflower housing 230A adjacent to hollow space S3 in firsthair holding part 40A shown inFIG. 6 . - Note that, according to the present exemplary embodiment,
outer ribs 731A andinner rib 732A on one side (rear side in the front-back direction) are provided oncover 330A aslower housing 230A.Outer ribs 731A andinner ribs 732A on the other side (front side in the front-back direction) are provided onlower housing 230A that covers the opening, located in front of firsthair holding member 50A, ofupper housing 220A. - Further, according to the present exemplary embodiment, two
inner ribs 732A extend shorter than twoouter ribs 731A. - Then,
concave surface 721A offirst pivot piece 720A is brought into sliding contact with tips of twoinner ribs 732A. This causesfirst pivot piece 720A to be slidably supported bysupport part 730A. Twoouter ribs 731A are structured to preventfirst pivot piece 720A from being misaligned in the Y direction (width direction). This structure prevents, when firsthair holding surface 560A (firsthair holding member 50A) is pivoted relative toupper housing 220A,concave surface 721A offirst pivot piece 720A from being out of sliding contact with the tips of twoinner ribs 732A. - As described above, according to the present exemplary embodiment,
first pivot piece 720A is pivotably supported bysupport part 730A. This allows firsthair holding surface 560A to pivot onfirst groove part 711A (first pivot axis 710A) extending in the X direction (front-back direction). - Note that the present exemplary embodiment has been described with reference to an example where
first pivot axis 710A is an intangible shaft, butfirst pivot axis 710A may be a tangible shaft. -
First arm 20A is structured as described above. - Hereinafter,
second arm 20B given above will be described in more detail. - As shown in
FIG. 2 ,second arm 20B primarily includessecond case 210B serving as an outer shell. Then, a side ofsecond case 210B adjacent to pivot joint 110 (rear side ofhair iron 10 in the X direction) serves assecond grip case 310B serving as an outer shell ofsecond grip 30B. On the other hand, a tip side ofsecond case 210B (front side ofhair iron 10 in the X direction) serves as second hair holdingpart case 410B serving as an outer shell of secondhair holding part 40B. -
Second case 210B of the present exemplary embodiment includesupper housing 230B andlower housing 220B,lower housing 220B that opens upward having the opening covered withupper housing 230B to form a hollow shape. - Specifically, an opening of
lower housing 320B ofsecond grip 30B that opens upward is covered withcover 330B, As a result,second grip case 310B is provided in a hollow shape. Further, an opening oflower housing 420B of secondhair holding part 40B that opens upward is covered with secondhair holding member 50B. As a result, second hair holding part case 4108 is provided. - As described above,
lower housing 220B of the present exemplary embodiment includeslower housing 320B ofsecond grip 30B andlower housing 420B of secondhair holding part 40B. On the other hand,upper housing 230B includescover 330B and secondhair holding member 50B. - Note that, according to the present exemplary embodiment,
lower housing 320B ofsecond grip 30B andlower housing 420B of secondhair holding part 40B are integrally provided. That is, a side oflower housing 220B adjacent to pivot joint 110 serves aslower housing 320B ofsecond grip 30B. On the other hand, a tip side oflower housing 220B serves aslower housing 420B of secondhair holding part 40B. - Further, cover 330B and second
hair holding member 50B are separately provided and are each attached tolower housing 220B to cover the opening oflower housing 220B to formupper housing 230B. - Further, according to the present exemplary embodiment, as shown in
FIG. 6 ,partition 240B divides hollow space S4 insecond case 210B into hollow space S5 insecond grip 30B and hollow space S6 in secondhair holding part 40B. -
Partition 240B includeswall 221B,wall 331B,gasket 250B, and the like.Wall 221B is provided extending upward in the Z direction from an inner side (upper surface side) of a center oflower housing 220B in the X direction (longitudinal direction: front-back direction).Wall 331B is provided extending downward in the Z direction from an inner side (lower surface side) on a front side ofcover 330B in the X direction.Gasket 250B is held betweenwall 221B andwall 331B. As a result,partition 240B is provided. - Herein, according to the present exemplary embodiment, a portion of
second arm 20B located behindpartition 240B serves assecond grip 30B, and a portion ofsecond arm 20B located in front ofpartition 240B serves as secondhair holding part 40B. That is, inhair iron 10 according to the present exemplary embodiment, a portion on a tip side (in front ofwall 331B) ofcover 330B serves as a portion of second hair holdingpart case 410B. - Various electric components are housed in hollow space S5 in
second grip 30B and hollow space S6 in secondhair holding part 40B shown inFIG. 6 . - Specifically, according to the present exemplary embodiment, electronic components (electrical components) such as
control device 340B that controlsheater 530A andheater 530B are housed in hollow space S5 insecond grip 30B. Electrical components such asfuse 582B andthermistor 583B are housed in hollow space S6 in secondhair holding part 40B. - The above-described layout increases a watertight effect for electronic components (electrical components) such as
control device 340B housed in hollow space S5 insecond grip 30B. - Note that
heater 530A andthermostat 582A are electrically coupled to controldevice 340B vialead wire 581 passing through an insertion hole provided throughgasket 250A. Further, electrical components such asfuse 582B andthermistor 583B are electrically coupled to controldevice 340B vialead wire 581. - Further, according to the present exemplary embodiment, as shown in
FIG. 3 ,front end 222B (end on the front side in the X direction) oflower housing 220B is curved upward (toward secondhair holding surface 560B). That is, the curvature offront end 222B allows the user to easily holdfront end 222B when usinghair iron 10. Further, protrusion 222 aB is provided atfront end 222B. Protrusion 222 aB serves as a slip stopper when the user holdsfront end 222B. Note that protrusion 222 aB is further capable of dissipating heat transmitted fromheater 530B tofront end 222B (knob to be held by the user). - Furthermore, according to the present exemplary embodiment, as shown in
FIG. 9 ,heat insulation member 430B is provided on inner surface 420 bB oflower housing 420B.Heat insulation member 430B prevents heat from being transmitted fromheater 530B to lowerhousing 420B. Note thatheat insulation member 430B is provided along inner surface 420 bB having a concave shape oflower housing 420B.Heat insulation member 430B includesinsertion hole 431B provided through a portion ofheat insulation member 430B. - On the other hand,
protrusion 421B extending upward (extending toward secondhair holding member 50B) is provided at the portion corresponding toinsertion hole 431B. -
Heat insulation member 430B is disposed on inner surface 420 bB oflower housing 420B withprotrusion 421B held ininsertion hole 431B. As a result,heat insulation member 430B is positioned relative to lowerhousing 420B. - That is,
heat insulation member 430B is disposed on inner surface 420 bB oflower housing 420B. This makes it possible to prevent, even when secondhair holding part 40B is made thinner, heat from being transmitted fromheater 530B to lowerhousing 420B. - Further, as shown in
FIG. 9 , secondhair holding member 50B serving as a portion ofupper housing 230B includesplate member 510B.Plate member 510B is also made of a material having high heat conductivity such as copper or aluminum. - Further, second
hair holding member 50B includes holdingmember 520B,heater 530B, and the like. Holdingmember 520B is supported bylower housing 420B of secondhair holding part 40B to holdplate member 510B.Heater 530B is heat-conductively coupled toplate member 510B to transmit generated heat toplate member 510B. -
Plate member 510B includesplate part 540B having an approximate plate shape (including a plate shape).Plate part 540B includes secondhair holding surface 560B provided on a surface (upper surface) ofplate part 540B, secondhair holding surface 560B having an approximate flat shape (including a flat shape). According to the present exemplary embodiment, secondhair holding surface 560B is provided in an approximate rectangular shape (including a rectangular shape) extending long and narrow in the longitudinal direction ofsecond case 210B in the plan view (as viewed from below). - Further, as shown in
FIG. 9 ,plate part 540B has both ends in the Y direction (width direction: the same direction as the width direction of secondhair holding part 40B) bent toward the inside ofsecond case 210B. Then, at both ends of secondhair holding surface 560B in the Y direction (width direction),curved surface 562B is provided in a convex shape that curves obliquely outward in the cross-sectional view in the width direction (plane cut along a vertical plane along the width direction). - That is, second
hair holding surface 560B includesflat surface 561B (flat part) located at a center of secondhair holding surface 560B in the width direction andcurved surfaces 562B provided at both ends offiat surface 561B in the width direction. - Further,
plate member 510B includes a pair oflegs 550B continuously extending inward (downward) from a back surface (lower side) ofplate part 540B. The pair oflegs 550B are held by holdingmember 520B. As a result,plate member 510B is held by holdingmember 520B.Heater 530B is housed inhousing 570B provided between the pair oflegs 550B. At this time,heater 530B housed inhousing 570B is disposed in contact with an inner surface ofplate part 540B. - Further, as shown in
FIG. 6 , electrical components such asfuse 582B andthermistor 583B are housed adjacent to a back surface (lower side) ofheater 530B inhousing 570B. - Examples of
heater 530B include a positive temperature coefficient heater (PTC) heater and the like. The use of the PTC heater allows stepless temperature control. However, the PTC heater need not necessarily be used as the heater, and another type of heater such as a nichrome wire heater may be used. - Note that the heater (heat generator) may be provided in only either one of first
hair holding part 40A or secondhair holding part 40B. - Further, as described above, according to the present exemplary embodiment,
control device 340B that controlsheater 530A andheater 530B is housed in hollow space S5 insecond grip 30B. Then,control device 340B is capable of controlling, stepwise, the temperature of firsthair holding surface 560A and secondhair holding surface 560B. - Specifically,
thermostat 582A is attached to the back surface ofplate part 540A and is electrically coupled to controldevice 340B. Then, usingthermostat 582A,control device 340B controls the temperature ofheater 530A. - On the other hand,
thermistor 583B is attached to the back surface ofplate part 540B and is electrically coupled to controldevice 340B. Then,control device 340B controls the temperature ofheater 530B by using resistance ofthermistor 583B, specifically, the resistance ofthermistor 583B that varies in a manner that depends on changes in temperature ofheater 530B. - Note that, according to the present exemplary embodiment,
fuse 582B is provided on the back surface ofplate part 540B. Then, fuse 582B blows when a temperature of firsthair holding surface 560A or secondhair holding surface 560B exceeds a predetermined. temperature due to damage to controldevice 340B or the like. As a result, the power to the heaters (heater 530A andheater 530B) is interrupted, which prevents a failure from occurring. Note that it is more preferable that the fuse be further provided on the back surface ofplate part 540A. This makes it possible to prevent a failure from occurring more reliably. - Further, as shown in
FIG. 9 , holdingmember 520B has an approximate mountain shape (including a mountain shape) that opens upward and protrudes downward in the cross-sectional view in the width direction. Specifically, holdingmember 520B includesbottom wall 521B,side wall 522B, lower flat part 521 aB, inclined part 521 bB, upper flat part 521 cB, andside wall 522B.Side walls 522B are provided extending upward from both ends ofbottom wall 521B in the Y direction. Lower flat part 521 aB is located at, the center in the Y direction (width direction) and is disposed at a lower position ofbottom wall 521B. Inclined part 521 bB is provided continuously extending from both ends of lower flat part 521 aB ofbottom wall 521B in the Y direction (width direction) and extend outward in the Y direction and upward. - Further, upper flat part 521 cB is provided continuously extending from both ends of inclined part 521 bB of
bottom wall 521B and horizontally extends outward in the Y direction. Then, as described above,side walls 522B are provided continuously extending from both ends of upper flat part 521 cB ofbottom wall 521B in the Y direction. - Note that a structure is preferably employed where at least one of first
hair holding part 40A and secondhair holding part 40B is supported movable up and down in the vertical direction (direction of the normal) relative toupper housing 420A of firsthair holding part 40A andlower housing 420B of secondhair holding part 40B. This structure can prevent excessive load on the hair held between firsthair holding surface 560A and secondhair holding surface 560B. This can in turn prevent damage to hair. - Therefore, according to the present exemplary embodiment, second
hair holding part 40B includessecond float mechanism 60B.Second float mechanism 60B floatably holds secondhair holding member 50B relative to lowerhousing 420B (seeFIG. 9 andFIG. 10 ). -
Second float mechanism 60B includes twofloat rubbers 610B (float parts) that are elastically deformable.Float rubbers 610B are arranged on the center in the Y direction (width direction) and spaced apart from each other in the X direction (front-back direction). Then, the elastic deformation of twofloat rubbers 610B causes secondhair holding member 50B to move (float) relative to lowerhousing 420B. - Each
float rubber 610B of the present exemplary embodiment has an arrowhead shape in the cross-sectional view in the width direction, and includesneck part 611B andarrowhead part 612B,neck part 611A being located on a base side offloat rubber 610B, andarrowhead part 612A being located on a tip side offloat rubber 610B.Arrowhead part 612B tapers down toward the tip side and includes flat surface 612 aB on a base side ofarrowhead part 612B, flat surface 612 aB being large in area. On the other hand, on a tip ofarrowhead part 612B, flat surface 612 bB smaller in area than flat surface 612 aB is provided.Neck part 611B is provided continuously extending from a center of flat surface 612 aB. -
Neck part 611B located on the base side offloat rubber 610B is inserted intoinsertion hole 621B provided through lower flat part 521 aB ofbottom wall 521B. This causesfloat rubber 610B to be held bybottom wall 521B of holdingmember 520B. At this time, flat surface 612 aB ofarrowhead part 612B located on the base side (neck part 611B side) is housed inspace 623B surrounded byrib 622B provided on lower flat part 521 aB ofbottom wall 521B. - On the other hand, flat surface 612 bB of
arrowhead part 612B located on the tip side (tapered portion) is housed inspace 632B surrounded byperipheral wall 631B provided belowprotrusion 421B oflower housing 420B. - This structure causes, according to the present exemplary embodiment, second
hair holding member 50B to be supported bylower housing 420B viafloat rubbers 610B that are elastically deformable. That is, secondhair holding member 50B is floatably held relative to lowerhousing 420B. This allows secondhair holding surface 560B to swing in the direction of the normal to secondhair holding surface 560B (Z direction: vertical direction). - Note that the swing motion of second
hair holding surface 560B in the direction of the normal to secondhair holding surface 560B includes a linear motion of secondhair holding surface 560B in the direction of the normal to secondhair holding surface 560B. The swing motion further includes a relative motion of one end of secondhair holding surface 560B to the other end in the direction of the normal to secondhair holding surface 560B. - That is, according to the present exemplary embodiment, the swing motion of second
hair holding surface 560B in the direction of the normal to secondhair holding surface 560B corresponds to the linear motion of secondhair holding surface 560B in the direction of the normal to secondhair holding surface 560B or a pivot motion of secondhair holding surface 560B on an axis along an XY plane. - Second
hair holding part 40B of the present exemplary embodiment further includessecond pivot mechanism 70B as shown inFIG. 11 andFIG. 12 .Second pivot mechanism 70B is structured to pivot secondhair holding surface 560B (secondhair holding member 50B) onsecond pivot axis 710B extending in the X direction (front-back direction). - Specifically,
second pivot mechanism 70B includessecond pivot piece 720B andsupport part 730B that slidably supportssecond pivot piece 720B. -
Second pivot piece 720B is provided, extending outward in the X direction, at both sides of holdingmember 520B in the X direction.Second pivot piece 720B has a convex shape that curves downward (Z direction). Further,concave surface 721B provided on an upper side (side adjacent to secondhair holding surface 560B) ofsecond pivot piece 720B is slidably supported bysupport part 730B. - That is,
concave surface 721B is provided in an arc shape centered onsecond pivot axis 710B in the cross-sectional view in the width direction (Y direction). - Herein, according to the present exemplary embodiment,
second groove part 711B (seeFIG. 13 ) is provided extending along the X direction (front-back direction: longitudinal direction) on the center of secondhair holding surface 560B in the Y direction (width direction). Note thatsecond groove part 711B has a depth of about 1 mm, for example.Second groove part 711B corresponds tosecond pivot axis 710B. Therefore, according to the present exemplary embodiment,concave surface 721B is provided in an arc shape centered onsecond groove part 711B in the cross-sectional view in the width direction. According to the present exemplary embodiment,second groove part 711B is provided facingfirst groove part 711A in the Z direction (thickness direction) whenfirst arm 20A andsecond arm 20B are closed. -
Support part 730B ofsecond pivot mechanism 70B includes twoouter ribs 731B and twoinner ribs 732B.Outer ribs 731B are provided outside in the Y direction (width direction).Inner ribs 732B are provided inside twoouter ribs 731B in the Y direction (width direction). -
Outer ribs 731B andinner ribs 732B are provided extending, towardlower housing 420B, from the inner surface ofupper housing 230B adjacent to hollow space S6 in secondhair holding part 40B shown inFIG. 6 . - Note that, according to the present exemplary embodiment,
outer ribs 731B andinner ribs 732B on one side (rear side in the front-back direction) are provided oncover 330B asupper housing 230B.Outer ribs 731B andinner ribs 732B on the other side (front side in the front-back direction) are provided onupper housing 230B that covers the opening, located in front of secondhair holding member 50B, oflower housing 220B. - Further, according to the present exemplary embodiment, two
inner ribs 732B extend shorter than twoouter ribs 731B. - Then,
concave surface 721B ofsecond pivot piece 720B is brought into sliding contact with tips of twoinner ribs 732B. This causessecond pivot piece 720B to be slidably supported bysupport part 730B. At this time, twoouter ribs 731B are structured to preventsecond pivot piece 720B from being misaligned in the Y direction (width direction). This structure prevents, when secondhair holding surface 560B (secondhair holding member 50B) is pivoted relative tolower housing 220B,concave surface 721B ofsecond pivot piece 720B from being out of sliding contact with the tips of twoinner ribs 732B. - As described above, according to the present exemplary embodiment,
second pivot piece 720B is pivotably supported bysupport part 730B. This allows secondhair holding surface 560B to pivot onsecond groove part 711B (second pivot axis 710B) extending in the X direction (front-back direction). - Note that the present exemplary embodiment has been described with reference to an example where
second pivot axis 710B is an intangible shaft, butsecond pivot axis 710B may be a tangible shaft. - Furthermore, according to the present exemplary embodiment, predetermined gap d is provided between first
hair holding surface 560A and secondhair holding surface 560B whenfirst arm 20A andsecond arm 20B are closed. Predetermined gap d corresponds to a space provided between firsthair holding surface 560A and secondhair holding surface 560B. -
Second arm 20B is structured as described above. - Further, in
hair iron 10 according to the present exemplary embodiment,discharge device 80 is disposed in hollow space S3 in the firsthair holding part 40A as described above (seeFIG. 6 ). -
Discharge device 80 generates ions and supplies the generated ions to the hair. This further increases hair care effects, - Further, in
hair iron 10 of the present exemplary embodiment,discharge device 80 is provided at the above-described position, allowinghair iron 10 to he downsized in the Z direction (thickness direction). - Specifically,
discharge device 80 is disposed at a portion of hollow space S3 in firsthair holding part 40A that does not overlap firsthair holding surface 560A. That is, according to the present exemplary embodiment,discharge device 80 is disposed so as not to overlap firsthair holding surface 560A as viewed along the direction of the normal to firsthair holding surface 560A (Z direction: thickness direction). As described above,discharge device 80 is disposed to prevent the normal to firsthair holding surface 560A from intersectingdischarge device 80. - Furthermore, according to the present exemplary embodiment,
discharge device 80 is disposed adjacent to an approximate center (including a center) of a short side (rear short side), adjacent to dischargedevice 80, of firsthair holding surface 560A. - Specifically,
partition 240A that divides hollow space S1 infirst case 210A into hollow space S2 infirst grip 30A and hollow space S3 in firsthair holding part 40A is disposed adjacent to the rear side in the X direction (front-back direction). Furthermore, according to the present exemplary embodiment,partition 240A is disposed behindpartition 240B in the X direction (front-back direction). As a result, a length (length in the X direction) of firsthair holding part 40A provided in front ofpartition 240A increases. This allows a relatively large space to be provided betweenpartition 240A and firsthair holding surface 560A (firsthair holding member 50A). -
Discharge device 80 is disposed in the space provided betweenpartition 240A and firsthair holding surface 560A (firsthair holding member 50A). That is,discharge device 80 is disposed adjacent to the short side (rear short side) of firsthair holding surface 560A. - Further, according to the present exemplary embodiment,
discharge device 80 is disposed on a center, in the Y direction (width direction), of the space provided betweenpartition 240A and firsthair holding surface 560A. As a result,discharge device 80 is disposed adjacent to the approximate center (including the center) of the short side (rear short side), adjacent to dischargedevice 80, of firsthair holding surface 560A. - Further, as an example according to the present exemplary embodiment,
discharge device 80 includesfirst electrode 810 and second electrode 820 (counter electrode: an electrode paired with first electrode 810) as shown inFIG. 15 .Second electrode 820 is disposed apart fromfirst electrode 810, and discharge is made betweensecond electrode 820 and first electrode 810 (seeFIG. 15 ).First electrode 810 andsecond electrode 820 are made of, for example, a transition metal such as stainless steel or titanium. - Furthermore,
discharge device 80 includes moisture-proof cover 830 that holdsfirst electrode 810 andsecond electrode 820. Moisture-proof cover 830 is provided in an approximate box shape (including a box shape) that opens upward and is held withfirst electrode 810 andsecond electrode 820 exposed in a hollow space inside moisture-proof cover 830. -
First electrode 810 andsecond electrode 820 ofdischarge device 80 of the present exemplary embodiment are electrically coupled to controldevice 340A vialead wire 581 shown inFIG. 6 . Then, a high voltage is applied acrossfirst electrode 810 andsecond electrode 820. This allowsdischarge device 80 to cause discharge (corona discharge or the like). - Examples of
discharge device 80 include a charged particle generator that generates a charged particulate liquid (for example, mist) and a metal particle generator that generates metal particles. - Then, the ions (charged particulate liquid such as mist or metal particles) generated by discharge device 80 (charged particle generator or metal particle generator) are ejected toward the hair from
ion ejection port 333A. This supplies the ions generated bydischarge device 80 to the hair throughion ejection port 333A. This in turn makes it possible to further increase hair care effects using the supplied ions. - According to the present exemplary embodiment, as shown in
FIG. 13 andFIG. 14 ,ion ejection port 333A is provided in front of a portion ofcover 330A that covers the space provided betweenpartition 240A and firsthair holding surface 560A. - Specifically, cover 330A has a front end portion inclined upward (toward
upper housing 220A).Cover 330A hasopening 334A provided through the inclined part of the front end, opening 334A having an approximate rectangular shape (including a rectangular shape). Opening 334A communicates with hollow space S3 (hollow space in moisture-proof cover 830 having an approximate box shape (including a box shape) shown inFIG. 15 ) in firsthair holding part 40A. Opening 334A thus provided is divided into three openings having an approximate rectangular shape (including a rectangular shape) by twopartitions walls 335A disposed apart from each other in the Y direction (width direction). Then, among the three openings, openings provided on both sides in the Y direction (width direction) serve asion ejection ports 333A. - That is, according to the present exemplary embodiment,
ion ejection ports 333A is disposed adjacent to a surface of firsthair holding part 40A that faces secondhair holding part 40B and a side of firsthair holding surface 560A adjacent to pivot joint 110. - Two
ion ejection ports 333A are provided communicating with discharge device 80 (hollow space in moisture-proof cover 830). That is,first electrode 810 andsecond electrode 820 ofdischarge device 80 thus arranged are exposed toion ejection port 333A. - Further, according to the present exemplary embodiment,
ion ejection ports 333A thus provided are exposed to predetermined gap d (the space provided between firsthair holding surface 560A and secondhair holding surface 560B) shown in.FIG. 9 . - This causes the ions (negative ions or positive ions) or charged particulate liquid generated by
discharge device 80 to be ejected fromion ejection ports 333A toward the space (predetermined gap d) provided between firsthair holding surface 560A and secondhair holding surface 560B. - That is,
ion ejection ports 333A thus provided are capable of supplying the ions (negative ions or positive ions) or charged particulate liquid generated bydischarge device 80 to the hair held between firsthair holding surface 560A and secondhair holding surface 560B. - Further, according to the present exemplary embodiment, among the three openings, an opening provided at the center in the Y direction (width direction) serves as
liquid intake port 332A that introduces liquid that come from the hair into the hollow space in moisture-proof cover 830 having an approximate box shape (including a box shape) (seeFIG. 13 andFIG. 14 ). - Therefore, according to the present exemplary embodiment,
ion ejection ports 333A are arranged, withliquid intake port 332A interposed betweenion ejection ports 333A, adjacent to both ends of the short side, adjacent toion ejection ports 333A, of firsthair holding surface 560A, - That is,
liquid intake port 332A of the present exemplary embodiment is disposed adjacent to the surface of firsthair holding part 40A that faces secondhair holding part 40B and the side of firsthair holding surface 560A adjacent to pivot joint 110. Furthermore,liquid intake port 332A is disposed adjacent to the approximate center (including the center) of the short side, adjacent toliquid intake port 332A, of firsthair holding surface 560A. - Further, as described above,
liquid intake port 332A is provided communicating with discharge device 80 (hollow space in moisture-proof cover 830).Liquid intake port 332A is disposed on approximately the same axis asfirst groove part 711A (groove) (first pivot axis 710A). - This facilitates the supply of water that comes from the hair held between first
hair holding surface 560A and secondhair holding surface 560B to dischargedevice 80 throughfirst groove part 711A. - That is,
liquid intake port 332A is provided to introduce liquid such as water from the hair held between firsthair holding surface 560A and secondhair holding surface 560B intodischarge device 80. Examples of the liquid include, for example, a hair treatment agent and the like in addition to water. - Furthermore,
liquid intake port 332A of the present exemplary embodiment thus disposed is further exposed tosecond groove part 711B as shown inFIG. 8 . - The above-described structure supplies, through
liquid intake port 332A fromfirst groove part 711A orsecond groove part 711B, water that comes from the hair held between firsthair holding surface 560A and secondhair holding surface 560B to dischargedevice 80. - That is, according to the present exemplary embodiment,
first groove part 711A andsecond groove part 711B serve as liquid passages through which liquid such as water is supplied to dischargedevice 80. - As described above,
liquid intake port 332A is provided to introduce liquid such as water from the hair held between firsthair holding surface 560A and secondhair holding surface 560B intodischarge device 80. - On the other hand,
ion ejection ports 333A are provided to supply the ions (negative ions or positive ions) or charged particulate liquid generated by discharge betweenfirst electrode 810 andsecond electrode 820 to the hair held between firsthair holding surface 560A and secondhair holding surface 560B. - This allows, while
hair iron 10 is in use, the liquid. that conies from the hair held between firsthair holding surface 560A and secondhair holding surface 560B to be introduced intodischarge device 80 through the liquid passages (first groove part 711A andsecond groove part 711B) andliquid intake port 332A. Then, gas such as water vapor introduced intodischarge device 80 comes into contact withfirst electrode 810 andsecond electrode 820 and then condenses. - Note that the liquid passages may be used for a discharge device configured to cause discharge in a state where liquid such as water is not condensed to generate only ions.
- Further, when the discharge device causes discharge, a negative voltage may be applied across the electrodes to generate negative ions. Further, a positive voltage may be applied across the electrodes of the discharge device to generate positive ions.
- Further, when the discharge device causes discharge, a negative voltage and a positive voltage may be alternately applied to generate negative ions and positive ions in an alternate manner. Further, the discharge device may include a plurality of electrodes. With this structure, a negative voltage may be applied to any of the plurality of electrodes and a positive voltage may be applied to any of the other electrodes, so that negative ions and positive ions are generated simultaneously.
- Note that
discharge device 80 described in the present exemplary embodiment is merely an example, and any discharge device may be disposed at a portion that does overlap firsthair holding surface 560A. - Hereinafter, an example of action and effect of
hair iron 10 structured as described above will be described. - First, the user operates (turns on)
operation switch 150 provided onhair iron 10 shown inFIG. 8 to apply power to the heaters (heater 530A andheater 530B). This causes the heaters (heater 530A andheater 530B) to generate heat, and the heat generated by the heaters (heater 530A andheater 530B) is transmitted from the heaters to platepart 540A andplate part 540B. As a result,plate part 540A andplate part 540B are heated. - At this time,
control device 340A heats firsthair holding surface 560A and secondhair holding surface 560B to a predetermined temperature (for example, 170° C.). Then, when the temperature of firsthair holding surface 560A and secondhair holding surface 560B reaches the predetermined temperature,control device 340A displays the temperature onindicator 160 provided onsecond arm 20B shown inFIG. 8 . This notifies the user that the temperature of firsthair holding surface 560A and secondhair holding surface 560B has reached the predetermined temperature. Note thatindicator 160 is implemented by, for example, an LED or a light guide member. - Next, with first
hair holding surface 560A and secondhair holding surface 560B heated to the predetermined temperature, the user puts his/her hair between firsthair holding surface 560A and secondhair holding surface 560B. - At this time, float deformation of first
hair holding surface 560A or pivot action onfirst pivot axis 710A can be made. - Similarly, float deformation of second
hair holding surface 560B or pivot action onsecond pivot axis 710B can be made. - This allows the hair of the user to be suitably heated by first
hair holding surface 560A and secondhair holding surface 560B. - At this time, when the user wants to make his/her hair curly, the user rotates
hair iron 10 by at least half a turn with the hair held between firsthair holding surface 560A and secondhair holding surface 560B. This causes a portion of the hair that is not held between firsthair holding surface 560A and secondhair holding surface 560B to be spirally wrapped around the outer surface (outer surface 420 aA or outer surface 420 aB). - Then, with the hair pressed against the outer surface (outer surface 420 aA or outer surface 420 aB), the user slides
hair iron 10 along the hair toward the ends of the hair. This makes the hair curly. - On the other hand, when the user wants to straighten his/her hair, the user slides, with the hair held,
hair iron 10 along the hair toward the ends of the hair without rotatinghair iron 10. This straightens the hair. - Note that, while
hair iron 10 is in use, application of a high voltage acrossfirst electrode 810 andsecond electrode 820 ofdischarge device 80 causes discharge (corona discharge or the like). This generates ions (negative ions or positive ions) or charged particulate liquid. Then, the generated ions (negative ions or positive ions) or charged particulate liquid is ejected toward the hair throughion ejection port 333A shown inFIG. 13 . - Further, while
hair iron 10 is in use, the hair is heated, and, accordingly, water that comes from the hair of the user evaporates to generate water vapor, and then expands. Then, the generation of water vapor and expansion causes the water that conies from the hair of the user to reachliquid intake port 332A through the liquid passages (first groove part 711A andsecond groove part 711B). - Note that, according to the present exemplary embodiment,
first groove part 711A andliquid intake port 332A are arranged on approximately the same axis (including on the same axis). Therefore, even when firsthair holding surface 560A is pivoted, there occurs almost no change in positional relationship betweenfirst groove part 711A andliquid intake port 332A. - Further, when
first arm 20A andsecond arm 20B are closed,second groove part 711B is also disposed on approximately the same axis (including on the same axis) asliquid intake port 332A. Therefore, even when secondhair holding surface 560B is pivoted with the hair held between firsthair holding surface 560A and secondhair holding surface 560B, there occurs almost no change in positional relationship betweensecond groove part 711B andliquid intake port 332A. - The above-described structure allows water in liquid passages (
first groove part 711A andsecond groove part 711B) to reachliquid intake port 332A more efficiently. - Then, application of a voltage to discharge
device 80 causes liquid such as water coming from the hair that has reachedliquid intake port 332A to be ionized. - Further, ions generated by
discharge device 80 are ejected forward fromion ejection port 333A and are supplied to the hair held between first,hair holding surface 560A and secondhair holding surface 560B. - That is, application of a high voltage across
first electrode 810 andsecond electrode 820 ofdischarge device 80 causes the generated ions (negative ions or positive ions) or charged particulate liquid to be supplied to the hair. This makes the hair of the user curly or straighten. - At this time, when a charged particle generator that generates mist is disposed as
discharge device 80, for example, dew condensation water is made into fine particles by discharge action such as corona discharge. As a result, extremely fine, nanometer-sized mist (negatively charged mist including negative ions) is generated and then supplied to the hair. As a result, the hair can be moisturized. - Further, when a metal particle generator is disposed as
discharge device 80, metal particles (metal molecules, ions, or the like) are emitted fromfirst electrode 810,second electrode 820, or the like by discharge action such as corona discharge. Then, the emitted metal particles are supplied to the hair. - Note that the first electrode and second electrode of the metal particle generator may be made of a transition metal (such as gold, silver, copper, platinum, zinc, titanium, rhodium, palladium, iridium, ruthenium, or osmium) alone, an alloy of such transition metals, a member that results from plating the transition metal, or the like.
- When the metal particles generated by and ejected from a discharge part of the metal particle generator contain gold, silver, copper, zinc, or the like, the metal particles containing such metal can exert an antibacterial effect. Further, when the metal particles contain platinum, zinc, titanium, or the like, the metal particles containing such metal can exert an antioxidant effect.
- It has been found that platinum fine particles have an extremely high antioxidant effect. Further, in the metal particle generator, a portion (for example, an electrode that serves as a ground electrode) that does not emit metal particles can be made of, for example, stainless steel or tungsten.
- Further, the discharge part of the metal particle generator may generate ions (for example, negative ions such as NO2- or NO3-) by discharge action, and bring the generated ions into collision with the first electrode, the second electrode, a member containing a different metal material or metal component, or the like to generate metal particles. Specifically, the second electrode or the other member is made of a material containing the transition metal. Then, metal particles may be released from the material containing the transition metal.
- The above-described structure can effectively prevent, when the hair is treated using
hair iron 10, damage to the hair due to the treatment. - As described above,
hair iron 10 according to the present exemplary embodiment includes firsthair holding part 40A including firsthair holding surface 560A and secondhair holding part 40B including secondhair holding surface 560B configured to face firsthair holding surface 560A. Then,hair iron 10 holds the hair with firsthair holding surface 560A and secondhair holding surface 560B facing each other. - Further,
hair iron 10 according to the present exemplary embodiment includesdischarge device 80 that generates ions, andion ejection port 333A that discharges the ions generated bydischarge device 80. Then,discharge device 80 is disposed at a portion of firsthair holding part 40A that does not overlap firsthair holding surface 560A. - That is, when
hair iron 10 is provided withdischarge device 80, hair care effects can be further increased. - Further,
discharge device 80 is disposed at the portion of firsthair holding part 40A that does not overlap firsthair holding surface 560A. This can make firsthair holding part 40A thinner. This can in turn make the height (thickness) ofhair iron 10 small. - The above-described structure of
hair iron 10 according to the present exemplary embodiment can make downsizing in the thickness direction while increasing hair care effects. - The downsizing in the thickness direction allows
hair iron 10 that is in use to be moved closer to the roots of the hair. This further allowshair iron 10 to hold a portion of the hair more adjacent to the roots. As a result, the treatment performance ofhair iron 10 can be further increased. - However, when
discharge device 80 is disposed at a portion of firsthair holding part 40A that overlaps firsthair holding surface 560A, and firsthair holding surface 560A is supported pivotably and floatably, firsthair holding surface 560A may interfere withdischarge device 80. This may disallow the application of the structure where firsthair holding surface 560A is supported pivotably and floatably. - Therefore, in
hair iron 10 according to the present exemplary embodiment,discharge device 80 is disposed at the portion of firsthair holding part 40A that does not overlap firsthair holding surface 560A. Accordingly,discharge device 80 is not present in either a pivot range or float support range of firsthair holding surface 560A. Therefore, it is possible to apply the structure where firsthair holding surface 560A is pivotably and floatably supported more reliably. - Further, with
ion ejection port 333A exposed to the space (predetermined gap d) provided between firsthair holding surface 560A and secondhair holding surface 560B,ion ejection port 333A may be disposed in firsthair holding part 40A. - That is,
ion ejection port 333A is disposed at a portion of firsthair holding part 40A that is exposed to the space between firsthair holding surface 560A and secondhair holding surface 560B. This makes it possible to supply a sufficient amount of ions to the hair. - Further, in
hair iron 10 according to the present exemplary embodiment, firsthair holding surface 560A may include first groove part (groove) 711A extending along the longitudinal direction of firsthair holding surface 560A, - This allows first groove part (groove) 711A to serve as a liquid passage for supplying liquid such as water that comes from the hair held between first
hair holding surface 560A and secondhair holding surface 560B to dischargedevice 80. This in turn allows liquid such as water that comes from the hair held between firsthair holding surface 560A and secondhair holding surface 560B to be easily supplied to dischargedevice 80. This can promote stable generation of ionic components. -
Hair iron 10 according to the present exemplary embodiment may further includeliquid intake port 332A connected to dischargedevice 80, and first groove part (groove) 711A andliquid intake port 332A may be arranged substantially coaxially with each other. - Accordingly,
hair iron 10 includesliquid intake port 332A connected to dischargedevice 80, and first groove part (groove) 711A andliquid intake port 332A are arranged on approximately the same axis (including on the same axis). This makes it possible to supply liquid such as water that comes from the hair to dischargedevice 80 more efficiently. - Further, in
hair iron 10 according to the present exemplary firsthair holding surface 560A may be configured to pivot onfirst pivot axis 710A, and first groove part (groove) 711A may serve asfirst pivot axis 710A. - This makes first
hair holding surface 560A pivotable while minimizing a position change of first groove part (groove) 711A. As a result, liquid such as water that comes from the hair can he supplied to dischargedevice 80 more efficiently regardless of a pivot state of firsthair holding surface 560A. - Further, in
hair iron 10 according to the present exemplary embodiment, firsthair holding part 40A may includefloat rubber 610A (float part) that causes firsthair holding surface 560A to swing in the direction of the normal to firsthair holding surface 560A. - This allows first
hair holding surface 560A and the hair to come into contact with each other more reliably. This can in turn further increase heating efficiency for hair. Furthermore, adhesion of firsthair holding surface 560A to the hair can be further increased. Therefore, when the hair is straightened, the straightness of the hair can be further increased. - Further, in
hair iron 10 according to the present exemplary embodiment, secondhair holding part 40B may includefloat rubber 610B (float part) that causes secondhair holding surface 560B to swing in the direction of the normal to secondhair holding surface 560B. - This allows second
hair holding surface 560B and the hair to come into contact with each other more reliably. Therefore, heating efficiency for the hair can be further increased. Furthermore, adhesion of secondhair holding surface 560B to the hair can be further increased. Therefore, when the hair is straightened, the straightness of the hair can be further increased. - Although the preferred exemplary embodiment of the present disclosure has been described above, the present disclosure is not limited to the above-described exemplary embodiment, and various modifications can be made.
- For example, the present disclosure is applicable to a hair iron in which the first hair holding surface and the second hair holding surface can come into contact with each other.
- Further, the structure according to the above-described exemplary embodiment has been described as an example where the second electrode faces the first electrode, but the present disclosure is not limited to such a structure. For example, a structure may be applied where the second electrode does not face the first electrode.
- Further, the structure according to the above-described exemplary embodiment has been described as an example where the first electrode and the second electrode are provided, but the present disclosure is not limited to such a structure. For example, a structure may be applied where the second electrode is not provided, and discharge is made between the first electrode and a constituent member located in the vicinity of the first electrode.
- Further, the structure according to the above-described exemplary embodiment has been described as an example where the discharge part is provided in the first hair holding part serving as the upper hair holding part, but the present disclosure is not limited to such a structure. For example, another discharge device may be provided in the second hair holding part serving as the lower hair holding part. Alternatively, the discharge device may be provided only in the second hair holding part. When the discharge device is provided only in the lower hair holding part, the lower hair holding part corresponds to the first hair holding part, and the upper hair holding part corresponds to the second hair holding part according to the present exemplary embodiment.
- Further, the structure according to the above-described exemplary embodiment has been described as an example where the hair iron includes the first grip in addition to the first hair holding part, but the present disclosure is riot limited to such a structure. For example, a structure may be applied where, in the hair iron, a portion of the first hair holding part serves as a grip, and the discharge device is disposed in the grip that is a portion of the first hair holding part.
- Further, according to the above-described exemplary embodiment, it is needless to say that relevant grips, hair holding parts, and other detailed specifications (shape, size, layout, and the like) may be appropriately changed.
Claims (19)
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JP2019156739A JP7320751B2 (en) | 2019-08-29 | 2019-08-29 | Hair iron |
JP2019-156739 | 2019-08-29 |
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JP2021029923A (en) | 2021-03-01 |
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JP7320751B2 (en) | 2023-08-04 |
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