Patent ID: 8863679
Filing Date: 2014-10-21
Classification: B63H,Y10T

Abstract:
1. A linkage device for flap rudders for watercraft, comprising: a first bearing housing including a sliding piston and a first sliding bearing; and a second bearing housing including a linkage pin and a second sliding bearing; wherein the sliding piston and the linkage pin each have the same diameter, which diameter is determined with reference to loads acting on the sliding piston during operation, which loads acting on the sliding piston are larger than loads acting on the linkage in such that the diameter of the linkage pink is configured for the larger loads acting on the sliding piston; wherein the first sliding bearing and the second sliding bearing each have the same diameter, the first and second sliding bearings respectively configured to receive the sliding piston and linkage in having the diameters as determined above; wherein the first bearing housing and the second bearing housing each have the same diameter, each respectively configured to house the first and second sliding bearings configured as above; wherein the first bearing housing and the second bearing housing each consist of the same material; wherein the sliding piston and the linkage pin each consist of the same material; and wherein the first sliding bearing and the second sliding bearing each consist of the same material.