Patent ID: 8720661
Filing Date: 2014-05-13
Classification: B60N,E05F,E05Y,F16D

Abstract:
1. A clamping-roller freewheel for an adjustment device in a motor vehicle, the clamping-roller freewheel comprising: a housing; a cylindrical lateral surface defining an axis; at least one roller arranged adjacent to the cylindrical lateral surface; an output shaft arranged central to the axis; and a clamping contour located on a side of the at least one roller opposite from the cylindrical lateral surface and rotationally connected to the output shaft; wherein the clamping contour includes a double clamping contour for each of said at least one roller, the at least one roller is allocated to a respective double clamping contour, and each double clamping contour has a left clamping area and a right clamping area defining a radially symmetric V-shaped arrangement, wherein, in a clamping state of the clamping-roller freewheel, the at least one roller is in contact with one of the left clamping area and the right clamping area, depending on a direction of rotation, and is in contact with the cylindrical lateral surface, wherein the at least one roller comprises at least one pair of rollers with two rollers and one of said V-shaped arrangement is provided for each of said two rollers, and wherein, in a clamping state of the clamping-roller freewheel, one of said two rollers is in immediate contact with the cylindrical lateral surface and the clamping contour, and another of said two rollers, given a same direction of rotation, is not in contact with at least one of the cylindrical lateral surface and the clamping contour, and wherein said two rollers include a left roller and a right roller, and with respect to each said V-shaped arrangement said left clamping area defines a left leg and said right clamping area defines a right leg, wherein a first respective V-shaped arrangement is for said left roller and a second respective V-shaped arrangement is for said right roller, said left roller engages said left leg of said first respective V-shaped arrangement and said right roller engages said right leg of said second respective V-shaped arrangement, and wherein at least one of (i) upon movement of the rollers to the right relative to the clamping contour, the right roller remains engaged with the right leg of the second respective V-shaped arrangement and the left roller disengages from the left leg of the first respective V-shaped arrangement and engages the right leg of the first respective V-shaped arrangement, and (ii) upon movement of the rollers to the left relative to the clamping contour, the left roller remains engaged with the left leg of the first respective V-shaped arrangement and the right roller disengages from the right leg of the second respective V-shaped arrangement and engages the left leg of the second respective V-shaped arrangement.