Patent ID: 7111412
Filing Date: 2006-09-26
Classification: G01B

Abstract:
1. A wheel vehicle measuring apparatus, comprising: upper and lower hollow push rods; a counter including a digital number display disposed in one end of said upper push rod, and said counter having a center axel; and the rotation of said center axel driving the counter for display with digital numbers; a wheel disposed at one end of said lower push rod and composed of a wheel rim and tire surface, and said wheel having a center axel; wherein the center axle of said wheel and the center axle of said counter have the same rotation cycles and forms a joint relationship; and wherein an inverted-U shaped front yoke having upper and lower ends is disposed between said wheel and said lower push rod; two lateral plates in said lower end of said front yoke attached to said center axel of said wheel and said upper end of said front yoke is coupled with said lower hollow push rod through a socket; a gear coupled mechanism including several bevel gears, engaged gears and connecting rods for rotating said center axel of said counter in response to rotation of said center axel of said wheel; wherein one of said connecting rods is disposed in said lower hollow push rod with one of said engaged gears fixed to an upper end thereof and a second of said connecting rods disposed in said upper hollow push rod with a second of said engaged gears fixed to a lower end thereof; means for bending said upper hollow push rod with respect to said lower hollow push rod between an operational position and a folded position; and wherein said engaged gears are engaged with one another when said push rods are in an operational position and disengaged when said push rods are in a folded position.