Device for deblocking lenses

Abstract

A device for deblocking lenses attached to a block has at least one securing device supporting a lens and having an opening for a block suspended from the lens. At least one holding-down device is provided for pressing the lens supported on the securing device against the securing device. At least one impacting device with a striking member movable from below against the securing device for striking the securing device is provided. The securing device and the holding-down device are supported to be movable against a spring-elastic restoring force in a striking direction of the striking member.

What is claimed is:  
     
         1 . A device for deblocking optical glasses attached to a block, the device comprising: 
 at least one securing device configured to support an optical glass and having an opening for a block suspended from the optical glass;    at least one holding-down device for pressing the optical glass supported on the securing device against the securing device;    at least one impacting device comprising a striking member movable from below against the securing device for striking the securing device;    wherein the securing device and the holding-down device are supported to be movable against a spring-elastic restoring force in a striking direction of the striking member.    
     
     
         2 . The device according to  claim 1 , wherein the securing device has a sleeve-shaped upper area facing the optical glass supported thereon and configured such that the block suspended from the optical glass projects into an interior of this sleeve-shaped upper area and has a spacing to an inner wall of the sleeve-shaped upper area.  
     
     
         3 . The device according to  claim 2 , wherein the securing device comprises a guide surface located underneath the sleeve-shaped upper area and extending downwardly, wherein the securing device has an ejection opening for the block separated from the optical glass and wherein the guide surface opens into the ejection opening.  
     
     
         4 . The device according to  claim 1 , wherein the securing device has a lower side opposite the optical glass supported thereon and the lower side comprises an anvil for receiving a strike exerted by the striking member.  
     
     
         5 . The device according to  claim 4 , wherein the anvil is arranged centrally underneath the lens or the block suspended therefrom.  
     
     
         6 . The device according to  claim 4 , wherein the striking member has an initial position before carrying out a strike and is positioned in the initial position at a spacing from the anvil of the securing device.  
     
     
         7 . The device according to  claim 1 , further comprising: 
 a glide sleeve, wherein the securing device is supported in the glide sleeve and is movable relative to the glide sleeve; and    a spring-elastic element configured to exert a restoring force upon movement of the securing device away from a lower end position.    
     
     
         8 . The device according to  claim 7 , wherein the spring-elastic element is an elastic rubber ring fastened on the securing device and resting against an underside of the glide sleeve or a part that is connected to the glide sleeve.  
     
     
         9 . The device according to  claim 1 , wherein the striking member has an initial position before carrying out a strike and is positioned in the initial position at a spacing from the securing device.  
     
     
         10 . The device according to  claim 1 , wherein the striking device comprises a piston-cylinder unit and wherein the striking member is attached to a piston rod of the piston-cylinder unit.  
     
     
         11 . The device according to  claim 1 , comprising a pneumatic piston-cylinder unit, wherein the holding-down device is fastened on a piston rod of the piston-cylinder unit.  
     
     
         12 . The device according to  claim 1 , further comprising a moveable slide, wherein several of the securing devices are arranged on the slide, wherein the securing devices are moveable alternatingly into a position opposite the striking device.  
     
     
         13 . The device according to claim the  12 , further comprising an actuator for a program-controlled automated movement of the slide.  
     
     
         14 . The device according to  claim 1 , wherein the optical glasses are spectacle lenses.