Patent ID: 7735198
Filing Date: 2010-06-15
Classification: A61B,E05D,F16M,F21V,Y10T

Abstract:
1. A pivotable bracket comprising: a first hinge part including a cylindrical pin having a contact surface; a second hinge part, said first hinge part and said second hinge part forming a hinge in which said first hinge part and said second hinge part can be rotated in relation to one another, said second hinge part having a bearing bush pushed over said pin, said bearing bush having two friction surfaces directed at right angles to a bearing bush central axis; a tensioning device fixed to said pin, wherein one of said friction surfaces is located at said contact surface and another of said friction surfaces is loaded via said tensioning device, said tensioning device comprising a threaded bolt at the end of said pin, a locknut, a tensioning spring and thrust washers, said lock nut being connected to said threaded bolt, said tensioning spring being located between said lock nut and one of said thrust washers, wherein said thrust washers comprise a first thrust washer connected to said second hinge part such that said first thrust washer does not rotate relative to said second hinge part and said thrust washers comprise a second thrust washer connected to said pin such that said second thrust washer does not rotate relative to said pin; and friction disks wherein said thrust washers are arranged layer by layer with respective ones of said friction disks interposed therebetween.