Slider for zip fastener with two tabs for operating it by disengaging locking means

Abstract

A slider for a zip fastener with two tabs, includes a hollow body in which are housed two levers positioned on opposite sides of the teeth of the fastener, one of the two levers, provided with a pawl for insertion between the teeth to lock the slider, being operable by acting on either one of the tabs to overcome the resistance of an elastic element positioned within the hollow body which keeps the pawl inserted between the teeth. The elastic element includes an elastically flexible strip, having one end fixed to the lever provided with the pawl, the strip facing an internal wall of the hollow body in such a way that it is interposed between the body and this lever and its elastic resistance opposes a movement of the lever which causes the extraction of the pawl from the teeth.

1 . Slider ( 1 ) for a zip fastener with two tabs ( 2 ,  3 ), comprising a hollow body ( 4 ) in which are housed two levers ( 5 ,  6 ) positioned on opposite sides of the teeth (Di) of the fastener, one ( 5 ) of the two levers ( 5 ,  6 ), provided with a pawl ( 7 ) for insertion between the said teeth (Di) to lock the slider ( 1 ), being operable by acting on either one of the said tabs ( 2 ,  3 ) to overcome the resistance of an elastic element positioned within the said hollow body ( 4 ) which keeps the said pawl inserted between the teeth (Di), characterized in that this elastic element consists of an elastically flexible strip ( 8 ), having one end ( 8   e ) fixed to the said lever ( 5 ) provided with the pawl ( 7 ), the strip ( 8 ) facing an internal wall ( 4   p ) of the said hollow body ( 4 ) in such a way that it is interposed between the body and the aforesaid lever ( 5 ) and its elastic resistance opposes a movement of the lever ( 5 ) which causes the extraction of the pawl ( 7 ) from the teeth (D).  
   
   
       2 . Slider according to  claim 1 , in which both the levers ( 5 ,  6 ) and the said elastically flexible strip ( 8 ) are made from a metallic material.  
   
   
       3 . Slider according to  claim 1 , in which both the levers ( 5 ,  6 ) and the said elastically flexible strip ( 8 ) are made from plastic material.