초록 ▼

In a tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, a rim holding apparatus 10 is composed of a parallel spindle 1 which is in parallel with the axis of tire uniformity machine, a taper collet 2 formed with an inner hole engaging concent

In a tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, a rim holding apparatus 10 is composed of a parallel spindle 1 which is in parallel with the axis of tire uniformity machine, a taper collet 2 formed with an inner hole engaging concentrically with the parallel spindle 1 at the center portion thereof and a taper surface at the outer peripheral portion thereof, a rim formed with a taper surface engaging with the taper surface of the taper collet 2 at the inner peripheral portion thereof, a rim clamping device 4 which holds the rim 3 and is mounted so that the parallel spindle 1 is capable of being moved in the axial direction, and a fixing device 5 for determining the axial position of the rim clamping device 4. Thereby, there is provided a highly accurate tire uniformity machine in which (1) the change of rim width and the fitting/removal of rim can be performed easily, and (2) the runout of rim can be decreased to 0.025 mm (standard) or less.

대표청구항 ▼

[ What is claimed is:] [1.]1. A tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, said tire uniformity machine being characterized in that a rim width changing apparatus 35 between upper and lower rims comprises threads 21 provided on an up

[ What is claimed is:] [1.]1. A tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, said tire uniformity machine being characterized in that a rim width changing apparatus 35 between upper and lower rims comprises threads 21 provided on an upper spindle 20 having a driving unit, a parallel spindle portion 22 provided on the upper spindle 20 below the threads 21, a moving device 23 mounted so as to enable the rotation and axial movement of the upper spindle 20 via the threads 21 of the upper spindle 20, a detent pin 24 for inhibiting the relative rotation between the upper spindle 20 and the moving device 23, a rim clamping device 25 which engages with the parallel spindle portion 22 of the upper spindle 20 and is rotatably connected to the moving device 23, a rim 3, a detent key 26 for inhibiting the relative rotation between the rim clamping device 25 and the spindle 20, a groove 27 for supporting the detent pin 24 of the moving device 23 in such a manner as to be movable along the upper spindle 20, and an arm 28 for pulling out the detent pin 24 of the moving device 23.