Structural Unit

Abstract

A structural unit, in particular a grinding wheel has a hole pattern for sucking away swarf from a machining surface. The hole pattern has at least three recesses which are arranged essentially along a first spiral line. The hole pattern also has at least three further recesses which are arranged essentially along a second spiral line which intersects the first spiral line in a region of at least one recess.

1 - 11 . (canceled) 
     
     
         12 . A structural unit having a hole pattern for sucking away swarf from a machining surface comprising:
 at least three first recesses arranged along a first spiral line, the first spiral line having a first origin;   at least three second recesses arranged along a second spiral line, the second spiral line having a second origin, wherein the second spiral line intersects the first spiral line in a region of at least one recess of the at least three first recesses and the at least three second recesses;   at least three third recesses arranged along a third spiral line, the third spiral line having a third origin;   at least three fourth recesses arranged along a fourth spiral line, the fourth spiral line having a fourth origin;   at least three fifth recesses arranged along a fifth spiral line, the fifth spiral line having a fifth origin;   at least three sixth recesses arranged along a sixth spiral line, the sixth spiral line having a sixth origin; and   at least three seventh recesses arranged along a seventh spiral line, the seventh spiral line having a seventh origin, wherein each of the first origin, third origin, fourth origin, fifth origin, sixth origin, and seventh origin are located on an elliptic ring, the elliptic ring having a first center point which is offset from a second center point of the structural unit.   
     
     
         13 . The structural unit according to  claim 12 , wherein the at least three first recesses are arranged at intersection points of the first and second spiral lines. 
     
     
         14 . The structural unit according to  claim 12 , wherein the first and second spiral lines are contradirectional to one another. 
     
     
         15 . The structural unit according to  claim 14 , wherein the first and second contradirectional spiral lines have different numbers of recesses. 
     
     
         16 . The structural unit according to  claim 14 , wherein:
 the first spiral line is one of a first plurality of spiral lines;   the second spiral line is one of a second plurality of spiral lines;   each of the first plurality of spiral lines is contradirectional to each of the second plurality of spiral lines;   each of the first plurality of spiral lines is associated with a respective at least three first recesses;   each of the second plurality of spiral lines is associated with a respective at least three second recesses;   a first total number of the first plurality of spiral lines of the structural unit corresponds to a first Fibonacci number of a Fibonacci sequence;   a second total number of the second plurality of spiral lines correspond to a second Fibonacci number of the Fibonacci sequence; and   the first Fibonacci number is adjacent to the second Fibonacci number in the Fibonacci sequence.   
     
     
         17 . The structural unit according to  claim 12 , wherein the first spiral line corresponds at least approximately to a Fibonacci spiral. 
     
     
         18 . The structural unit according to  claim 12 , wherein:
 each of the at least three first recesses have a minimum spacing with respect to the second center point which differ from all minimum spacings with respect to the second center point of the at least three third recesses and the at least three fourth recesses; and   the fourth and the fifth spiral lines are each immediately adjacent to, and codirectional with, the first spiral line.   
     
     
         19 . The structural unit according to  claim 12 , wherein the structural unit is a grinding wheel. 
     
     
         20 . The structural unit according to  claim 12 , wherein the structural unit is a grinding plate. 
     
     
         21 . A system comprising:
 a grinding wheel including:
 at least three first recesses arranged along a first spiral line having a first origin offset from a first center point of the grinding wheel, 
 at least three second recesses arranged along a second spiral line having a second origin, wherein the second spiral line intersects the first spiral line in a region of at least one recess of the at least three first recesses and the at least three second recesses, 
 at least three third recesses arranged along a third spiral line, the third spiral line having a third origin, 
 at least three fourth recesses arranged along a fourth spiral line, the fourth spiral line having a fourth origin, 
 at least three fifth recesses arranged along a fifth spiral line, the fifth spiral line having a fifth origin, 
 at least three sixth recesses arranged along a sixth spiral line, the sixth spiral line having a sixth origin, and 
 at least three seventh recesses arranged along a seventh spiral line, the seventh spiral line having a seventh origin, wherein each of the first origin, third origin, fourth origin, fifth origin, sixth origin, and seventh origin are located on an elliptic ring, the elliptic ring having a second center point which is offset from the first center point; and 
   a grinding plate operably connected to the grinding wheel and including:
 at least three eighth recesses arranged along an eighth spiral line, and 
 at least three ninth recesses arranged along a ninth spiral line, wherein the eighth spiral line intersects the ninth spiral line in a region of at least one recess of the at least three eighth recesses and the at least three ninth recesses. 
   
     
     
         22 . The system of  claim 21 , wherein the second origin is offset from the center point of the grinding wheel. 
     
     
         23 . The system of  claim 22 , wherein:
 each of the eighth recesses is aligned with a respective one of the first recesses; and   each of the ninth recesses is aligned with a respective one of the second recesses.   
     
     
         24 . The system of  claim 21 , wherein:
 each of the eighth recesses is aligned with a respective one of the first recesses; and   each of the ninth recesses is aligned with a respective one of the second recesses.   
     
     
         25 . A structural unit having a hole pattern for sucking away swarf from a machining surface comprising:
 at least three first recesses arranged along a first spiral line, the first spiral line having a first origin;   at least three second recesses arranged along a second spiral line, the second spiral line having a second origin, wherein the second spiral line intersects the first spiral line in a region of at least one recess of the at least three first recesses and the at least three second recesses; and   at least three third recesses arranged along a third spiral line, the third spiral line having a third origin, wherein the origin of the third spiral line is located closer to a center point of the structural unit than the origin of the first spiral line.   
     
     
         26 . The structural unit according to  claim 25 , wherein the at least three first recesses are arranged at intersection points of the first and second spiral lines. 
     
     
         27 . The structural unit according to  claim 25 , wherein the first and second spiral lines are contradirectional to one another. 
     
     
         28 . The structural unit according to  claim 27 , wherein the first and second contradirectional spiral lines have different numbers of recesses. 
     
     
         29 . The structural unit according to  claim 27 , wherein:
 the first spiral line is one of a first plurality of spiral lines;   the second spiral line is one of a second plurality of spiral lines;   each of the first plurality of spiral lines is contradirectional to each of the second plurality of spiral lines;   each of the first plurality of spiral lines is associated with a respective at least three first recesses;   each of the second plurality of spiral lines is associated with a respective at least three second recesses;   a first total number of the first plurality of spiral lines of the structural unit corresponds to a first Fibonacci number of a Fibonacci sequence;   a second total number of the second plurality of spiral lines correspond to a second Fibonacci number of the Fibonacci sequence; and   the first Fibonacci number is adjacent to the second Fibonacci number in the Fibonacci sequence.