Hair iron

Abstract

A hair iron includes a first arm, a second arm, a first inner heating plate, a second inner heating plate, protrusions, and a first outer heating plate. The second arm is rotatably connected to the first arm. The first inner heating plate is located in a region of the first arm that faces the second arm. The second inner heating plate is located in a region of the second arm that faces the first inner heating plate. The protrusions are poor thermal conductors and located in a region of the first arm that does not face the second arm. The first outer heating plate is located between the protrusions. The first outer heating plate and at least one of the first inner heating plate and the second inner heating plate are good thermal conductors and generate heat based on heat from a heat source.

1 . A hair iron, comprising:
 a first arm;   a second arm that is rotatably connected to the first arm and can be placed in a closed position where a tip-side portion thereof is close to or in contact with the first arm and an open position where the tip-side portion is separated from the first arm;   a first holding member that is supported by the first arm and is located in a region of the first arm that faces the second arm in the closed position;   a second holding member that is supported by the second arm and is located in a region of the second arm that faces the first holding member on the first arm in the closed position;   a plurality of protrusions being poor thermal conductors, which are supported by the first arm and protrude outward in a region of the first arm that does not face the second arm in the closed position; and   a surface member located between the protrusions on the first arm,   wherein the surface member and at least one of the first holding member and the second holding member are good thermal conductors and are capable of generating heat based on heat from a heat source.   
     
     
         2 . The hair iron according to  claim 1 , further comprising a film heater that generates heat when supplied with power,
 wherein at least one of the first holding member and the second holding member is thermally connected to the film heater to be capable of generating heat.   
     
     
         3 . The hair iron according to  claim 2 , wherein
 the first holding member is a good thermal conductor,   the film heater is incorporated in the first arm, and   the first holding member and the surface member are both thermally connected to the same film heater to be capable of generating heat.   
     
     
         4 . The hair iron according to  claim 2 , further comprising a biasing member that is located between the first holding member and the surface member in the first arm and is capable of biasing the first holding member,
 wherein the first holding member is supported by the first arm so as to be slidable along a direction opposite to the second holding member in the closed position, and slides toward inside of the first arm against a biasing force of the biasing member when subjected to a load from a second holding member side.   
     
     
         5 . The hair iron according to  claim 1 , wherein at least one of the first holding member and the second holding member is made of copper alloy. 
     
     
         6 . The hair iron according to  claim 1 , wherein the surface member has a convex portion that protrudes to one side in a predetermined direction and is capable of generating heat. 
     
     
         7 . The hair iron according to  claim 6 , wherein the protrusions include a large protrusion whose tip is on the one side from that of the convex portion in the predetermined direction.