US 10,502,255 B2Granted

Deformable screw assembly

AssigneeCentre Technique des Industries Mecaniques

InventorsEtienne Yvain, Christophe Delcher

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Abstract

A screw assembly includes a longitudinal component (10) having two opposite ends and a threaded part (12; 42; 66) so that it can be connected by screwing to one of two elements (34). An elastically deformable member (18, 20; 48; 82) is adapted to be borne, in the axially compressed state, between one or other of the two opposite ends of the longitudinal component (10) and the other of the two elements. The assembly has a retaining device (30; 54; 84) so as to be able to keep the elastically deformable member (18, 20; 48; 82) in compression and so as to be able to release the elastically deformable member in the compressed state between the other of the two elements (32) and the one or the other of the two opposite ends.

Claims8

Dependent claims

A deformable screw assembly adapted to apply load between two elements in two opposite directions to one another, said screw assembly comprising a longitudinal component having two opposite ends and a threaded part extending between said two opposite ends so that said longitudinal component is connected by screwing to one of said two elements;

and an elastically deformable member adapted to be borne in an axially compressed state between one or other of said two opposite ends of said longitudinal component and the other of said two elements, said threaded part being under axial strain;
wherein said elastically deformable member comprises an elastic washer;
wherein said screw assembly comprises a retaining device to keep said elastic washer under axial compression and to release said elastic washer in said compressed state between said other of said two elements and said one or said other of said two opposite ends of said longitudinal component;
wherein said retaining device comprises a tapped component, and said elastic washer has a threaded circular edge to come into engagement inside said tapped component;
and
wherein said elastically deformable member further comprises another washer having another threaded edge to come into engagement inside said tapped component, and wherein said elastic washer is kept under axial compression against said other washer inside said tapped component.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/566,192Filed 15 Apr 2016
Priority: FR 15 5342717 Apr 2015
Published: US 2018/0135687 A117 May 2018
Granted: 10 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

F16B 43/00
Washers or equivalent devices
F16B 31/028
For indicating the attainment of a particular tensile load or limiting tensile load: with a load-indicating washer or washer assembly
F16B
Devices for fastening or securing constructional elements or machine parts together

Family

US 2018/0135687 A1Pre-grant publication · published 17 May 2018
US 10,502,255 B2This patent

From the US filing history. Foreign family members aren’t listed.

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