Patent ID: 7654164
Filing Date: 2010-02-02
Classification: F16H,Y10T

Abstract:
1. A travel multiplying device comprising: at least one outer pipe, one inner pipe, and one intermediate pipe positioned between the inner pipe and the outer pipe, the inner pipe and the intermediate pipe being movable in the longitudinal direction and each being movable in the longitudinal direction by a particular longitudinal distance of travel greater than zero, with the intermediate pipe having an elongated slit, and the inner pipe and the outer pipe each having at least one cutout formed between facing surfaces of the inner pipe and the outer pipe, the cutouts and slit having different gradients relative to a transverse plane through the pipes, the outer pipe, the inner pipe, and the intermediate pipe are coupled with each other by at least one movement linking element extending through the slit and into the cutouts of the inner pipe and the outer pipe, and the movement linking element moving within the elongated slit and moving longitudinally relative to the cutouts to link movements of the inner pipe and intermediate pipe, the inner pipe being moved a first longitudinal distance of travel greater than zero, and the movement linking element moves in the slit and cutouts to cause the intermediate pipe to move a second longitudinal distance of travel greater than the first longitudinal distance of travel.