An adapter for a scrolling component and a scrolling component including that adapter

Abstract

Adapter for a rolling assembly having an axis of rotation (YY') and comprising: a tire with two beads and a rim with two rim flanges; for each bead the adapter ensures The connection between the bead and the rim. According to the invention, said adapter comprises: an axially inner end (10) connected to the rim, an axially outer end (9) said axially outer end (9) ) comprising an outer reinforcing element (15) and intended to come into contact with the bead by means of a substantially radial axially inner surface or bearing surface (21); and a body (11) which will axially The end (15) is connected to the axially inner end (10) so as to form a single piece, said body comprising at least one main reinforcement (17) connecting the outer reinforcing element (15) and the inner reinforcing element (16), and comprising A substantially axial adapter seat (18) intended to come into contact with the bead. Said adapter is characterized in that the outer reinforcing element (15) is located axially completely outside the bearing surface (21), the outer reinforcing element (15) being a substantially annular structure called a bead core, having a substantially Polygonal cross-section comprising at least two first layers (24) of composite and / or metallic material and at least two second layers (25) of rubber compound, said first (24) and second (25) layers are arranged in an alternating manner parallel to each other and to the YY' axis.

Description

technical field [0001] The invention relates to an adapter for a rolling assembly comprising a tire and a rim, said adapter being intended to provide a connection between the tire and the rim. The invention also relates to a rolling assembly comprising said adapter. Background technique [0002] A tire is a toroidal structure, the axis of revolution of which is the axis of rotation of the tyre, and comprising a tread, said tread intended to be in contact with the ground, and two beads intended to In contact with the rim, the two beads are connected to the tread by two sidewalls. [0003] A reminder of the definitions used in the present invention is given below: [0004] - "axial direction YY'": a direction parallel to the axis of rotation of the tyre, [0005] - "radial direction ZZ'": the direction perpendicular to the axis of rotation of the tyre, [0006] - "radial plane": the plane containing the axis of rotation of the tire and defined by the radial direction and t...

AI Technical Summary

Problems solved by technology

[0011] However, although this rolling assembly enables the tire to perform its usual functions, especially the deflection thrust responsiveness after the deflection angle is applied to the tire, thereby endowing the rolling assembly with sufficient flexibility to protect the tire from any damage, due to multiple Repeated "dimple" type shocks, which can cause cracks or even spread in the outer reinforcement forming the outer end of the shaft

[0012] In particular, the above-mentioned adapters of the prior art that ensure the connection between each bead of the tire and the rim do not have optimal mechanical characteristics, mainly in terms of stiffness, to be able to absorb large deformations when the rolling assembly passes through the dimples

This can lead to residual plastic deformation or even fracture of the adapter, resulting in damage to the rolling assembly

[0013] Furthermore, the literature does not suggest the development of adapter designs that might overcome the aforementioned disadvantages

Images