Threaded insert

Patent metadata

Field	Value
Publication number	US-9926964-B2
Application number	US-201515125139-A
Country	US
Kind code	B2
Filing date	Mar 10, 2015
Priority date	Mar 11, 2014
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

The invention relates to an insert ( 10 ) 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, and each tab has an outer thread ( 38 ) and forms an angle (α), towards the outside of the body, with respect to the axis (A).
Such an insert is used for axially positioning the outer rings of bearings.

First claim

The invention claimed is:

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

2. An insert according to claim 1 , wherein the threads of the first portion and of the tabs have an identical pitch.

3. An insert according to claim 1 , wherein the threads of the first portion and of the tabs have different pitches.

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

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

6. An insert according to claim 1 , wherein the flange comprises a means for rotating the insert.

7. An insert according to claim 6 , wherein the shape of the opening 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 forms the means for rotating the insert.

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

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

11. An insert according to claim 1 , wherein the angle (α) with respect to the axis (A) is greater than zero.

12. An insert according to claim 1 , wherein the angle (α) with respect to the axis (A) is between 30° and 45°.

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

• F16B39/22

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

• F16C35/07

  Fixing them on the shaft or housing with interposition of an element · CPC title