Rotational hair styling device for easily making spiral curls

Abstract

Disclosed therein is a rotational hair styling device for easily making spiral curls including: an upper case being elongated; a lower case rotatably hinge-coupled with a hinge part of the upper case; a heating member of a bar shape horizontally located in the winding space part; a driving motor embedded in the lower case collinearly with the heating member; and a winder member connected to a driving gear of the driving motor and rotated forwardly and reversely around the heating member inside the heating space part for spirally winding the hair.

What is claimed is: 
     
         1 . A rotational hair styling device for easily making spiral curls comprising:
 an upper case being elongated, the upper case having hair pressing part which is formed at one end thereof and is in contact with the upper portion of the hair and a hinge part formed at the other end;   a lower case rotatably hinge-coupled with a hinge part of the upper case, the lower case having a winding space part formed at one end thereof corresponding to the hair pressing part, the winding space part having an opened upper portion in which the hair is accommodated;   a heating member of a bar shape horizontally located in the winding space part, the heating member having a heating space part between the heating member and the inner circumferential surface of the lower case for winding and heating the hair;   a driving motor embedded in the lower case collinearly with the heating member; and   a winder member connected to a driving gear of the driving motor and rotated forwardly and reversely around the heating member inside the heating space part for spirally winding the hair, which is grasped between the winding space part and the hair pressing part, from the middle to the end of the hair when the upper and lower cases are closed and for heating the hair in a state where the hair is in contact with the surface of the heating member.   
     
     
         2 . The rotational hair styling device according to  claim 1 , wherein the auxiliary heating member is mounted in the winding space part of the lower case while keeping an interval from the outer circumferential surface of the heating member, and comprises a curved inner surface formed to heat the outer surface of the hair spirally wound on the heating member by the winder member. 
     
     
         3 . The rotational hair styling device according to  claim 1 , wherein the upper case comprises a hair passing hole formed at both sides of the hair pressing part thereof when the upper and lower cases are closed by rotating around the hinge parts. 
     
     
         4 . The rotational hair styling device according to  claim 1 , wherein the winder member comprises:
 a rotary ring connected to the driving gear of the driving motor and rotated in forward and backward directions;   a winder perpendicularly extending from the rim of the rotary ring, the winder having a width surrounding a portion of the outer surface of the heating member and an inner circumferential surface curved inwardly;   dented portions formed at both edges of the winder so as to spirally wind and rotate the hair; and   a downwardly curved protrusion formed at an external end portion of the dented portion along the circumferential direction for catching the middle of the hair accommodated in the winding space part and sending the hair to the dented portion so as to spirally wind and form the hair into a coil shape.   
     
     
         5 . The rotational hair styling device according to  claim 4 , wherein the winder member comprises: a through hole formed at the center of the rotary ring in such a way that the heating member is mounted through the through hole; a pair of planetary gears interlocking at both sides of the driving gear of the driving motor; and an inner ring gear rotating in interlock with the planetary gears, wherein the rotary ring is integrally assembled to the inner ring gear such that the winder member rotates forwardly and reversely around the heating member. 
     
     
         6 . The rotational hair styling device according to  claim 1 , wherein a power line for supplying electric power to the heating member is connected with the heating member and the auxiliary heating member through power line holes formed above and below the planetary gears and arranged at right angles to the planetary gears so as to supply electric power. 
     
     
         7 . The rotational hair styling device according to  claim 2 , wherein a power line for supplying electric power to the heating member is connected with the heating member and the auxiliary heating member through power line holes formed above and below the planetary gears and arranged at right angles to the planetary gears so as to supply electric power. 
     
     
         8 . The rotational hair styling device according to  claim 1 , wherein the upper case comprises a pressing protrusion downwardly protrudes from the external front end of the hair pressing part of the upper case, the rotational hair styling device further comprising:
 a contact member which is mounted to be outwardly resilient in such a manner that the contact member is moved inwardly by the pressing protrusion so as to move the hair toward the heating member when the upper case is rotated and lies upon the lower case.   
     
     
         9 . The rotational hair styling device according to  claim 8 , wherein the contact member comprises:
 a fixing boss mounted at the external end portion of the heating member and having an elastic member accommodated therein;   a movable body mounted on the fixing boss in an axially movable manner;   a movable piece upwardly protruding from the outer circumferential surface of the movable body in such a way as to be in contact with the pressing protrusion; and   a round contact member formed inside the movable piece.   
     
     
         10 . The rotational hair styling device according to  claim 8 , wherein the contact member comprises:
 a hinge shaft located outside the heating member and having a lower end portion transversely assembled to the inner circumferential surface of the lower case;   a movable lever extending upwardly from the hinge shaft and being in contact with the pressing protrusion, the movable lever pushing the hair toward the heating member while inwardly rotating on the hinge shaft; and   an elastic member located between the hinge shaft and the movable lever in such a way that the movable lever is outwardly resilient on the hinge shaft.   
     
     
         11 . The rotational hair styling device according to  claim 1 , further comprising:
 a detection sensor for detecting a rotational position in order to return the winder member to its initial position after the winder member is rotated forwardly and backwardly; and   a sensor member engaged with the detection sensor.