Patent ID: 8978726
Filing Date: 2015-03-17
Classification: B60C

Abstract:
1. Flat-running device configured to be fitted to a tubeless mounted assembly for a motor vehicle which comprises a wheel rim in several parts and a tire casing comprising beads mounted against edges of said rim, said device comprising: an annular supporting structure configured to be mounted around the rim for the purpose of supporting the casing, following a drop in inflation pressure inside the mounted assembly, and which is divided into at least two ring sectors in an arc of a circle suitable for forming said structure by juxtaposition in the circumferential direction, these sectors being articulated together in twos in this direction by connection means, and means for locking the beads against these edges which are configured to connect said annular supporting structure to these beads, wherein said connection means are located between two lateral faces of each of the two sectors that they articulate together, and comprise two spindles extending in an axial direction of the device which are respectively attached in two facing connection ends of these sectors and which are connected together by an articulation extending in the circumferential direction of the device, said articulation consisting of at least one rigid lug with two through-holes or else of at least one flexible link with two loops, said or each lug or said or each link being articulated on these spindles by these two holes or loops, respectively, wherein the two connection ends of each sector form, in each sector end, a recess delimited axially by two axial recess faces both traversed by said spindle attached to each sector end, each recess extending radially from the radially inner face of this sector, wherein the two ends of each sector are recessed over a substantially middle portion of their axial width so as to form, in each sector end, said recess which extends over at least a portion of the length of the sector in the circumferential direction, each recess having a substantially rectangular axial section.