Clamping ring for connecting cylindrical units of missiles

Abstract

The invention relates to a clamping ring for connecting cylindrical units of a missile, which have each a circumferential projection and a flat-conical engagement surface. The clamping ring comprises a circumferential portion bent to a arc of a circle and having two ends, which can be tightened together by means of a turnbuckle. The clamping ring has cheeks along its rims. The cheeks have flat-conical engagement surfaces corresponding to the flat-conical engagement surfaces of the circumferential projections of the cylindrical units to be connected. The clamping ring extends with the cheeks over the circumferential projections of the units. In order to increase the strength of the clamping ring by suitable shaping within a predetermined space, the inner surface of the clamping ring is free from edges and guided tightly about the outer contours of the circumferential projections. Rounded circumferential recesses are provided at the transitions between this inner surface free from edges and the engagement surfaces of the cheeks in order to achieve large transition radii. The outer surface of the clamping ring has a cylindrical section and substantially conical sections in the area of the cheeks, the transition between the cylindrical section and the conical sections being rounded.

I claim:  
     
         1 . A clamping ring for connecting cylindrical units of a missile, which have each a circumferential projection having an outer contour and a flat-conical engagement surface, said clamping ring comprising: 
 a circumferential portion bent substantially to a arc of a circle and having an inner and an outer surface, a first and a second front surface, a first and a second end and two rims;    clamping means adapted to act on said first and second end of said circumferential portion in order to tighten said ends;    a central area having an inner surface and an outer surface;    a first and a second cheek extending along said rims and having flat-conical engagement surfaces corresponding to said flat-conical engagement surfaces of said circumferential projections of said cylindrical units to be connected, transitions being defined between said central area and said engagement surfaces of said cheeks;    wherein:    said clamping ring extends with said cheeks over said circumferential projections of said units;    said engagement surfaces of said clamping ring engage said engagement surfaces of said circumferential projections of said cylindrical units when said clamping ring is tightened;    said inner surface of said central area of said clamping ring is free from edges and guided tightly about said outer contours of said circumferential projections of said units; and    rounded circumferential recesses are provided at said transitions between said inner surface of said central area and said engagement surfaces of said cheeks of said clamping ring in order to achieve large transition radii.    
     
     
         2 . The clamping ring of    claim 1   , wherein said outer surface of said clamping ring has a substantially cylindrical section in said central area and substantially conical sections in the area of said cheeks, the transition between said cylindrical section and said conical sections being rounded.  
     
     
         3 . The clamping ring of    claim 1   , wherein said inner surface of said central area of said clamping ring, adjacent to said first cheek of said clamping ring, has a substantially cylindrical section in the area of a largest diameter of said adjacent circumferential projection of said unit, and a substantially flat-conical section adjacent to said cylindrical section.  
     
     
         4 . The clamping ring of    claim 3   , wherein the inner diameter of said cylindrical section of said inner surface is manufactured with such tolerances with respect to the outer diameter of said adjacent circumferential projection, that clamping between said clamping ring and said circumferential projection is only just effected with the smallest outer diameter of said circumferential projection and the largest inner diameter of said central area of said clamping ring.  
     
     
         5 . The clamping ring of    claim 1   , wherein said transition radii are cold-worked by chasing or rolling.  
     
     
         6 . The clamping ring of    claim 1   , wherein said clamping ring is manufactured as cast part.  
     
     
         7 . The clamping ring of    claim 1   , wherein said engagement surfaces of said clamping ring are provided with a dry-film lubricant.  
     
     
         8 . The clamping ring of    claim 1   , wherein said engagement surfaces of said clamping ring are provided with a metal layer, perferably of chrome or nickel.