Bicycle rim and wheel having such a rim
AssigneeMavic S.A.S.
InventorJean-Pierre Mercat
Life of this patent
Estimating the term…
Abstract
A bicycle rim including an annular shaped element whose cross-section includes a box shape demarcated by an upper bridge and a lower portion having a lower bridge and side walls, the lower bridge or the side walls having holes distributed evenly and provided for the connection of the spokes, the holes and their immediate vicinity defining boring zones. The thickness of the walls constituted by the lower bridge and the side walls has a nominal value in the boring zones and a lower value than the nominal value in the intermediate zones located between two adjacent boring zones, and the thickness of this wall varies progressively from the nominal value to the lower value to the nominal value.
Claims22
A bicycle rim comprising:
- an annular one-piece profile element having a box shape in cross section, said box shape being demarcated by an upper bridge and a lower portion having a lower bridge and side walls, the lower bridge or the side walls having holes distributed evenly and provided for connection of spokes, the holes and their immediate vicinity defining boring zones, wherein the thickness of at least one of the walls constituted by the lower bridge and the side walls has a nominal value in the boring zones and a lower value than the nominal value in the intermediate zones located between two adjacent boring zones, and wherein the thickness of said wall varies progressively from the nominal value to the lower value to the nominal value.
A bicycle rim comprising:
- an annular profile element having a box-shaped cross section demarcated by an upper bridge and a lower portion of said annular element, said lower portion comprising a lower bridge and side walls;
- said lower portion further comprising holes spaced apart around said annular element, said holes being provided for connection of spokes;
- said annular element further comprising boring zones defined by said holes and immediately adjacent portions of said lower portion of said annular element and intermediate zones extending between adjacent pairs of said boring zones;
- said lower portion of said annular element having at least one wall constituted by said lower bridge and said side walls, said at least one wall having a thickness with a nominal value in said boring zones and a lower value than said nominal value in said intermediate zones, wherein said thickness of said at least one wall varies progressively from said nominal value to said lower value.
Dependencies are inferred from the claim text.