Screw thread locking insert
First Claim
1. A locking pin for use in locking an insert to an aperture in a parent body comprisinga first, break-away portion, said portion being sufficiently elongated to enable it to be held in a given location by human fingers;
- a second cutting portion extending from said break-away portion, said cutting portion terminating in a flat surface having sharp edges to facilitate entry into a parent body by punching into the parent material; and
a locating finger extending from said flat surface to extend into an aperture in the insert adjacent the parent body.
3 Assignments
0 Petitions
Accused Products
Abstract
A device for locking a threaded insert into a prepared hole in a parent material. The device includes a locating portion, a locking portion and a gripping portion which is removed upon installation. The locating portion comprises a finger which is positioned in a preformed slot in the external threads of the threaded insert. The locking portion, which extends outwardly from the locating portion, is driven across the corresponding threads of the parent material to shear and distort the threads and lock the insert in place. The gripping portion which extends outwardly from the locking portion is used by the installer to position the device during installation and is then broken off.
-
Citations
6 Claims
-
1. A locking pin for use in locking an insert to an aperture in a parent body comprising
a first, break-away portion, said portion being sufficiently elongated to enable it to be held in a given location by human fingers; -
a second cutting portion extending from said break-away portion, said cutting portion terminating in a flat surface having sharp edges to facilitate entry into a parent body by punching into the parent material; and a locating finger extending from said flat surface to extend into an aperture in the insert adjacent the parent body. - View Dependent Claims (2, 3, 5, 6)
-
-
4. A method of locking an externally threaded insert into an internally threaded parent body comprising the steps of:
-
providing an internally threaded aperture in a parent body; providing an externally threaded insert sized to fit said aperture; providing an axially extending slot in said external threads of said insert; mounting said insert in said aperture; providing a locking pin having a locating finger, a cutting portion and a break-away portion; placing said finger in said slot, said cutting portion being disposed adjacent said internal threads of said parent body; driving said pin further into said slot to force a portion of said internal threads into tight frictional engagement with said insert and said pin; and breaking off said break-away portion of said pin.
-
Specification