Device for manipulating a hollow shaft intended to create a pivot link between a first element and a second element

A device for manipulating a hollow shaft having a first longitudinal axis, the hollow shaft being configured to create a pivot link between a first element and a second element through an engagement of the hollow shaft in at least one orifice of the first element and in at least one orifice of the second element, comprising:

• a cylindrical body having a second longitudinal axis, the cylindrical body being configured to be introduced into the hollow shaft so that the second longitudinal axis is parallel to the first longitudinal axis, the cylindrical body having a diameter that is variable through radial contraction or radial expansion of the cylindrical body,
• a module to control the diameter of the cylindrical body, the control module being configured so that the diameter of the cylindrical body has alternatively at least one first diameter suitable for the cylindrical body to be able to be displaced in the hollow shaft and a second diameter suitable for the cylindrical body to be blocked in the hollow shaft,
• the cylindrical body comprising a first end configured to protrude from the hollow shaft when the cylindrical body is blocked in the hollow shaft.