Hair straightener

Abstract

The present invention relates to a hair straightener ( 10 ) comprising:—a first jaw ( 12 ) having a first plate ( 16 );—a second jaw ( 14 ) having a second plate ( 18 );—a hinge ( 20 ) coupled to the first and second jaw ( 12, 14 ) to permit a user to swivel at least one of the jaws ( 12, 14 ) around a hinge axis ( 22 ) between an open and a closed position;—a heater for heating at least one of the first and the second plate ( 16, 18 ); and—an operating lever ( 26 ) to regulate a clamping pressure between the first jaw ( 12 ) and the second jaw ( 14 ), the operating lever ( 26 ) being coupled to the first jaw ( 12 ) via a first spring element ( 28 ) and pivoted to permit the user to swivel the operating lever ( 26 ) relative to the first jaw ( 12 ) around the hinge axis ( 22 ) or around an axis parallel thereto.

1 . Hair straightener comprising:
 a first jaw having a first plate ;.   a second jaw having a second plate   a hinge coupled to the first and second jaw to permit a user to swivel at least one of the jaws around a hinge axis between an open and a closed position;   a heater for heating at least one of the first and the second plate; and characterized by   an operating lever to regulate a clamping pressure between the first jaw and the second jaw, the operating lever being coupled to the first jaw via a first spring element and pivoted to permit the user to swivel the operating lever relative to the first jaw around the hinge axis or around an axis parallel thereto.   
     
     
         2 . Hair straightener according to  claim 1 , wherein the operating lever is pivoted at the hinge to permit the user to swivel the operating lever relative to the first jaw around the hinge axis. 
     
     
         3 . Hair straightener according to  claim 1 , wherein the first spring element exerts a spring force that spaces the operating lever apart from the first jaw. 
     
     
         4 . Hair straightener according to  claim 2 , wherein the first spring element is a mechanical spring exerting the spring force along a spring axis that is arranged transverse to the hinge axis and transverse to a longitudinal axis of the first jaw. 
     
     
         5 . Hair straightener according to  claim 1 , further comprising a second spring element arranged between the two jaws that forces the two jaws toward the open position, wherein a position of the first spring element relative to the second spring element and/or a first spring constant of the first spring element relative to a second spring constant of the second spring element is chosen such that a force exerted by the first spring element spacing the operating lever apart from the first jaw is higher than a force exerted by the second spring element forcing the two jaws toward the open position. 
     
     
         6 . Hair straightener according to  claim 1 , wherein the operating lever is pivoted to permit the user to swivel the operating lever relative to the first jaw between a start position, in which the operating lever and the first jaw are spaced apart from each other, and an end position, in which the first spring element is compressed and the operating lever is arranged closer to the first jaw as in the start position or pressed onto an upper side of the first jaw. 
     
     
         7 . Hair straightener according to  claim 6 , wherein a rear side of the operating lever, which faces substantially towards the upper side of the first jaw, has a positive fit with said upper side of the first jaw in the end position. 
     
     
         8 . Hair straightener according to  claim 6 , wherein the operating lever comprises at least one through hole that serves as access to an operating button of the hair straightener which is arranged on the upper side of the first jaw. 
     
     
         9 . Hair straightener according to  claim 6 , wherein the operating lever comprises at least one stop pin that extends transverse to the hinge axis and transverse to a longitudinal axis of the operating lever wherein the at least one stop pin is configured to contact an end stop at the second jaw when the operating lever is in its end position. 
     
     
         10 . Hair straightener according to  claim 9 , wherein the end stop arranged within a recess in the second jaw. 
     
     
         11 . Hair straightener according to  claim 9 , wherein the first jaw comprises at least one opening that extends transverse to the hinge axis and the longitudinal axis, wherein the at least one stop pin is guided through said at least one opening. 
     
     
         12 . Hair straightener according to  claim 9 , wherein the at least one stop pin comprises a length adjustment mechanism for adjusting a length of the at least one stop pin. 
     
     
         13 . Hair straightener according to  claim 1 , wherein at least one of the first plate and the second plate has a spring system that comprises an adjustment screw for adjusting a spring tension and/or a spring excursion of the spring system.