Full motion, hip belt to backpack frame attachment system

Abstract

The invention is a system for attaching a hip belt to a backpack frame in a manner that doesn't restrict the motion of the user but effectively carries vertical load. This is accomplished by adding a hip frame attached to the sides of the hip belt and attaching this hip frame at its center to the backpack frame with a slip joint and link. Page 818

1 . A hip belt to backpack frame mounting system comprising:
 a backpack frame with or without a backpack bag that has a near vertical member on its center, somewhere in the bottom third of said backpack frame on which a slip joint can interface and a feature on said backpack frame's center and beneath said backpack frame's slip joint interface where a link can be attached;   a hip frame that spans around the user's back to attachment points on the sides of a hip belt;   a slip joint attached to and located at the center upper position of said hip frame that slides on said backpack frame's vertical member and allows said hip frame to rotate in all directions so that the motion of said user isn't restricted;   a link attached to said hip frame, located below said slip joint, that attaches said hip frame to said backpack frame and allows said hip frame to rotated in all directions so that the motion of said user isn't restricted.   
     
     
         2 . The hip belt to backpack frame mounting system of  claim 1 , where the stabilizing moment on said hip frame from the forces from said slip joint and said link is larger than the destabilizing moment imparted on said hip frame by forces from said hip belt so that said system does not collapse.