Patent ID: 9452647
Filing Date: 2016-09-27
CPC Classification: B60D,Y10T

Claim Text:
1. A chain attachment insert comprising: a T-bolt head having a length which is greater than its width, so as to fit in a socket in a bed of a pickup truck; a neck above the T-bolt head, the neck defining an axis of rotation for the chain attachment insert while the chain attachment insert is in the socket; a body above the neck and being wider than the neck, the body having a flat underside normal to the axis of rotation, such that when the flat underside extends horizontally the axis of rotation extends vertically, the body providing an open loop chain attachment for receiving a chain or hook; a hole through the body extending parallel to the axis of rotation, offset from the neck but located within a cylinder defined by the length of the T-bolt head about the axis of rotation, the body having a top edge around the hole, with the T-bolt head, neck and body being connected such that the hole and the top edge around the hole rotate about the axis of rotation whenever the T-bolt head rotates about the axis of rotation; and an interference peg insertable through the hole in a vertical slide direction, the interference peg having a shoulder which, when contacting the top edge of the body around the vertically extending hole, supports the interference peg at an elevation such that a portion of the interference peg resides in the socket adjacent the neck to interfere with and prevent the chain attachment insert from rotating relative to the socket; the interference peg being separable from the body by sliding in a direction parallel to the axis of rotation.