Visor assembly

Abstract

Visor assembly ( 1, 21 ) consisting of an inner shield ( 6, 26 ) and an outer shield ( 2, 22 ). In the use position these shields are some distance apart. With this arrangement the inner shield ( 6, 26 ) is located within the peripheral confines of the outer shield ( 2, 22 ). The inner shield ( 6, 26 ) is provided with an elevation ( 7, 27 ) which extends close to the periphery thereof and which acts as a spacer with respect to the outer shield. This elevation ( 7, 27 ) is preferably made of silicone material which is snack to the inner shield ( 6, 26 ) but is not stuck to the outer shield ( 2, 22 ). Fixing to the outer shield ( 2, 22 ) takes place by means ( 10, 12 ) of mechanical fixing means.

What is claimed is: 
     
       1. Visor assembly comprising
 (a) a replaceable inner shield; 
 (b) an outer shield spaced from the inner shield and carrying mechanical fixing elements to fix the inner shield to the outer shield, the inner shield being supported by the outer shield, being located within the periphery of the outer shield, being spaced from and engageable with the outer shield and being detachable from the outer shield and visor assembly; 
 (c) additional fixing elements for fixing the outer shield to a support component, the support component optionally being a helmet or a goggles frame; and 
 (d) a sealing and spacing member extending around the periphery of the inner shield, on a surface facing the outer shield, to seal and space the inner shield from the outer shield; 
 wherein the sealing and spacing member is fabricated of flexible silicone material, is adhered to the inner shield and can sealingly engage the outer shield without adhering to the outer shield. 
 
     
     
       2. Visor assembly according to  claim 1 , wherein the sealing and spacing member comprises a ring and an enclosed gas or air chamber is delimited between the inner shield and the outer shield by the sealing and spacing member and wherein the internal width of said chamber is at least 2 mm. 
     
     
       3. Visor according to  claim 1 , wherein said mechanical fixing elements comprise pins fitted on the outer shield and recesses in the inner shield the pins being cooperative with the recesses. 
     
     
       4. Visor assembly according to  claim 1 , wherein said outer shield is made of polycarbonate. 
     
     
       5. Visor assembly according to  claim 1 , wherein said inner shield is made of heat-treated cellulose acetate material. 
     
     
       6. Visor assembly according to  claim 1 , wherein said mechanical fixing elements comprise a seat in said outer shield the seat at least partially corresponding to the shape of said inner shield. 
     
     
       7. Visor assembly according to  claim 1 , wherein said inner shield is made of cellulose propionate material. 
     
     
       8. Visor assembly according to  claim 1 , wherein said inner shield is provided on one side with a coating that counteracts misting. 
     
     
       9. Visor assembly according to  claim 7 , wherein said inner shield is provided on one side with a scratch-resistant coating. 
     
     
       10. A visor assembly according to  claim 1  wherein the visor assembly lacks electric heating means. 
     
     
       11. A visor assembly according to  claim 1  wherein the outer shield has a recess corresponding to the external dimensions of the inner shield and wherein the inner shield is accommodated in the outer shield recess. 
     
     
       12. A visor assembly according to  claim 1  wherein the inner shield has a mist-resistant coating on the one surface and comprises a second peripheral resilient sealing and spacing member adhered to the other surface and wherein the inner shield is reversible to dispose the mist-resistant coating either inwardly or outwardly of the space between the inner and the outer shield. 
     
     
       13. A visor assembly according to  claim 2  wherein said mechanical fixing elements comprise pins fitted on the outer shield and recesses in the inner shield the pins being cooperative with the recesses and wherein said mechanical fixing elements comprise a seat in said outer shield the seat at least partially corresponding to the shape of said inner shield. 
     
     
       14. A visor assembly according to  claim 13  wherein the outer shield has a recess corresponding to the external dimensions of the inner shield and wherein the inner shield is accommodated in the outer shield recess. 
     
     
       15. A visor assembly according to  claim 2  wherein said outer shield is made of polycarbonate, said inner shield is made of heat-treated cellulose acetate material or cellulose propionate material and optionally said inner shield is provided on one side with a coating that counteracts misting. 
     
     
       16. A visor assembly according to  claim 13  wherein said outer shield is made of polycarbonate, said inner shield is made of heat-treated cellulose acetate material or cellulose propionate material and optionally said inner shield is provided on one side with a coating that counteracts misting. 
     
     
       17. Visor assembly comprising
 (a) a replaceable inner shield; 
 (b) an outer shield spaced from the inner shield and carrying mechanical fixing elements to fix the inner shield to the outer shield, the inner shield being supported by the outer shield, being located within the periphery of the outer shield and being spaced from and engageable with the outer shield and being detachable from the outer shield and visor assembly; 
 (c) additional fixing elements for fixing the outer shield to a support component, the support component optionally being a helmet or a goggles frame; and 
 (d) a sealing and spacing member extending around the periphery of the inner shield, on a surface facing the outer shield, to seal and space the inner shield from the outer shield; wherein the sealing and spacing member is flexible and is adhered to the inner shield and can sealingly engage the outer shield without adhering to the outer shield and wherein the visor assembly lacks electric heating means. 
 
     
     
       18. A visor assembly according to  claim 17  wherein the sealing and spacing member of flexible material comprises a ring, optionally of rubbery elastic material, and an enclosed gas or air chamber is delimited between the inner shield and the outer shield by the sealing and spacing member and wherein the internal width of said chamber is at least 2 mm., said mechanical fixing elements comprise pins fitted on the outer shield and recesses in the inner shield the pins being cooperative with the recesses and wherein said mechanical fixing elements comprise a seat in said outer shield the seat at least partially corresponding to the shape of said inner shield. 
     
     
       19. A visor assembly according to  claim 18  wherein said outer shield is made of polycarbonate, said inner shield is made of heat-treated cellulose acetate material or cellulose propionate material and optionally said inner shield is provided on one side with a coating that counteracts misting. 
     
     
       20. Visor assembly according to  claim 1  wherein the inner shield is directly connected to the outer shield by the mechanical fixing elements and is supported entirely by the outer shield. 
     
     
       21. A visor assembly according to claim 18 wherein the outer shield has a recess corresponding to the external dimensions of the inner shield and wherein the inner shield is accommodated in the outer shield recess. 
     
     
       22. A visor assembly according to claim 19 wherein said inner shield is provided on one side with a scratch-resistant coating.