US Patent 9027950 Anti-rattle hitch assembly

An anti-rattle hitch (100) includes a tubular insert (102) that is configured to be inserted into a receiver (90). A wedge mechanism comprising a first wedge member (112) and a second wedge member (114) are disposed in the insert, and have slidably engaged angled faces. The second wedge member includes one or more pistons that extend through piston (110) apertures in the insert such that the longitudinal position of the second wedge member is fixed. An adjustment member (120) adjusts the position of the first wedge member, thereby adjusting the piston position which can be biased against the receiver.