Patent ID: 7281998
Filing Date: 2007-10-16
Classification: A63B

Abstract:
1. An adjustment mechanism for a batting tee having at least an inner telescoping member and an outer telescoping member, said adjustment mechanism comprising: a first rigid washer, a second rigid washer, a compressible washer, and an adjustment screw, the center hole of said compressible washer being aligned with the center holes of said first and second rigid washers, said compressible washer being situated between said first and second rigid washers to form a compressible washer assembly having an outer diameter and a center hole extending through said centers of said aligned rigid and compressible washers, said outer diameter of said compressible washer assembly becoming greater when said compressible washer assembly is compressed, said inner telescoping member having an upper and a lower portion, said lower portion having a cylindrical shape of constant diameter, a lower end, and a screw hole situated longitudinally within said lower end of said inner telescoping member, said adjustment screw extending through said center hole of said compressible washer assembly and extending into said screw hole such that said adjustment screw holds said compressible washer assembly against said lower end of said inner telescoping member, said screw hole being of sufficient length to permit said adjustment screw to be tightened against said compressible washer assembly, such that when said adjustment screw is tightened said compressible washer assembly will be compressed against said lower end of said inner telescoping member and said outer diameter of said compressible washer assembly will be increased, said outer telescoping member having a circumferential opening therethrough, said circumferential opening having a constant diameter large enough to accept said lower portion of said inner telescoping member in a slidable relationship when said compressible washer assembly is not compressed, and to provide sufficient friction between said compressible washer assembly and said circumferential opening to prevent said inner telescoping member from sliding within said outer telescoping member when said compressible washer assembly is compressed.