| 摘要 |
PURPOSE:To readily and certainly change the height of the front wheels by detachably providing an intermediate case arranged between a front axle case and an end section case for changing the height of wheels with a case lid prevented to come out in an axial direction for covering a gear transmission. CONSTITUTION:A front axle case 2 is provided with a front axle 1 therein, and an end section case 10 is pivotably secured with a double level intermediate shaft 6 driven by the front axle 1 through gears 4 and 5. In addition, a steering case 9 is pivotably secured with a front wheel 7 driven through the intermediate shaft 6 and also supported rotatably around a king-pin 8. An intermediate case 11 is rotatably connected to the front axle case 2 and end section case 10 at both ends. In this case, a case lid 13 rotatably fitted to the outside of the end section case 10 and prevented to come out in an axial direction by means of a ring 12 is detachably provided to the end face of an intermediate case body 14 covering gears 4 and 5. Even if the intermediate case 11 is rotated along with the front wheels and others during the changing operation of the height of the front wheels, the case lid 13 serves to prevent the intermediate case 11 from coming out even if the fitting width is small. |
