Threaded insert

Patent metadata

Field	Value
Publication number	US-2016377110-A1
Application number	US-201515125139-A
Country	US
Kind code	A1
Filing date	Mar 10, 2015
Priority date	Mar 11, 2014
Publication date	Dec 29, 2016
Grant date	—

Abstract

Such an insert is used for axially positioning the outer rings of bearings.

First claim

1 . An insert ( 10 ) positioned along an axis (A), said insert comprising a first end ( 12 ) defining a circular opening ( 14 ), a cylindrical body ( 16 ) having an inner wall ( 18 ) and an outer wall, and a second end ( 20 ) defining an opening ( 22 ) and forming an enlarged flange ( 24 ), characterized in that the body comprises a first portion ( 28 ) adjacent to the first end and provided with an outer thread ( 30 ), and a second portion ( 32 ) adjacent to the first portion and comprising at least two cutouts ( 34 ) defining at least two flexible tabs ( 36 ) extending axially, each tab has an outer thread ( 38 ) and forms an angle (α), towards the outside of the body, with respect to the axis, and the second portion ( 32 ) further comprises, between the at least two cutouts ( 34 ), walls ( 40 ) that connect the flange ( 24 ) to the first portion ( 28 ).

2 . An insert according to claim 1 , wherein the threads ( 30 , 38 ) of the first portion ( 28 ) and of the tabs ( 36 ) have an identical pitch.

3 . An insert according to claim 1 , wherein the threads ( 30 , 38 ) of the first portion ( 28 ) and of the tabs ( 36 ) have different pitches.

4 . An insert according to claim 1 , wherein the walls ( 40 ) have an outer diameter (D 4 ) smaller than the root diameter (D 2 ) of the thread ( 30 ) of the first portion ( 28 ).

5 . An insert according to claim 1 , further comprising a third portion ( 42 ) positioned between the flange ( 24 ) and the second portion ( 32 ) and having an outer diameter (D 5 ) greater than the crest diameter (D 3 ) of the thread ( 30 ) of the first portion ( 28 ) and less than the outer diameter (D 1 ) of the flange ( 24 ).

6 . An insert according to claim 1 , wherein the flange ( 24 ) comprises a means ( 44 ) for rotating the insert ( 10 ).

7 . An insert according to claim 6 , wherein the shape of the opening ( 22 ) of the second end forms the means for rotating the insert.

8 . An insert according to claim 6 , wherein the shape of the contour of the flange ( 24 ) forms the means for rotating the insert.

9 . An insert according to claim 6 , wherein the rotation means consists of at least two holes ( 44 ) drilled in the plane of the flange ( 24 ).

10 . An insert according to claim 1 , wherein the cutouts ( 34 ) are in the shape of a U or a V.

Assignees

• Lisi Aerospace

Inventors

• Philippe Alan
• Boleis Gildas

Classifications

• F16B39/284 Primary

  Locking by means of elastic deformation ({F16B39/2825, F16B39/36,} F16B39/38 take precedence) · CPC title

• F16B39/34

  Locking by deformable inserts or like parts · CPC title

• F16C35/067

  Fixing them in a housing (with interposition of an element F16C35/07) · CPC title

• F16B37/067 Primary

  the material of the nut being deformed by a threaded member generating axial movement of the threaded part of the nut, e.g. blind rivet type · CPC title

• F16B39/22

  in which the locking takes place during screwing down or tightening (F16B39/01 takes precedence) · CPC title