Abstract: An arrangement of the column (1) neutralising transient forces (C1, EA1) generated by a jolt to which the column (1) is subjected, by an automatic decoupling between two coaxial sections (1a, 1b) of the column (1). This decoupling is caused by angular movement of a coupling link (5) between the sections (1a, 1b), preventing transmission of the forces (C1, EA1) by a distal section (1a) to a proximal section (1b) of the column (1). Simultaneously with the decoupling, a compression is also caused of a prestressed elastic mounting region (6a) between the sections (1a, 1b), the jolt then no longer being absorbed by the driver but by the compression of the elastic region. The decoupling is followed by an automatic re-coupling between the two sections (1a, 1b) under the effect of the relaxing of the elastic region (6a).

Abstract: An arrangement of the column (1) neutralising transient forces (C1, EA1) generated by a jolt to which the column (1) is subjected, by an automatic decoupling between two coaxial sections (1a, 1b) of the column (1). This decoupling is caused by angular movement of a coupling link (5) between the sections (1a, 1b), preventing transmission of the forces (C1, EA1) by a distal section (1a) to a proximal section (1b) of the column (1). Simultaneously with the decoupling, a compression is also caused of a prestressed elastic mounting region (6a) between the sections (1a, 1b), the jolt then no longer being absorbed by the driver but by the compression of the elastic region. The decoupling is followed by an automatic re-coupling between the two sections (1a, 1b) under the effect of the relaxing of the elastic region (6a).