Nacam France Sa

Lemforder Nacam

Zf Systemes De Direction Nacam S.a.s.

Zf Systems De Direction Nacam S.a.s.

Nacam S.a.

Nacam France S.a.s.

André Laisement

Abdel Karim Ben Rhouma

Pascal Millet

Vincent Eymery

Benoit Duval

Michel Chartrain

Sylvain Antigny

Emmanuel Marzio

Jean-Marc Gatti

Alain Carrer

Vincent Emery

Jacques Loyau

Christophe Sachot

A system for locking, with respect to rotation and translation, the engagement of a first shaft with a second shaft, the first shaft being disposed in an axial bore in the second shaft. The system includes a locking device movable between a locking position and a release position, the first shaft having an end part which includes two walls inclined towards each other in a transverse direction, the axial bore having two corresponding walls opposite the inclined walls of the first shaft wherein changing the locking position of the locking device causes a transverse movement of the end part which puts the inclined walls of the first shaft in abutment against the corresponding walls of the axial bore.

System for locking a first shaft with respect to a second shaft eliminating clearances between said shafts

The yoke member of Cardan joint is made in one unitary part of one piece and includes a pivot fork including two pivot arm portions each comprising a crossing hole, the axis of which is the pivot axis of a cross-piece, and a connecting element for the motion transmission shaft and having two tightening portions connected via a junction portion. Each of the two tightening portions comprises a tightening hole. Four reinforcing appendices are arranged on the tightening portions and opposite one another in pairs to form together with the portions a housing for the motion transmission shaft. The yoke member is stamped in order to give it the desired thickness in highly stressed and lowly stressed regions.

Stamped cardan joint yoke member for an automotive vehicle steering column

An adjustable vehicle steering column is locked to a vehicle chassis by a remote-controlled electrically-operable locking arrangement that is carried by one end of a locking arm the other end of which is pivotally connected with the vehicle chassis. The locking arrangement has a locking axis that is parallel with and spaced a given distance from the pivot axis of the locking arm.

Adjustable steering column including electrically-operable locking means

An energy absorbing mechanism for collapsible vehicle steering column includes a deformable wire connected between the fixed and movable column members. The wire includes a straight portion connected at one end with the movable column member, and a second portion that is deformed around a cylinder that is secured to the fixed column member. A force generator is operable upon impact to apply laterally to the wire a controlled frictional force that is a function of various physical properties of the driver, the vehicle, or the environment, thereby to afford infinitely variable and modulatable energy absorption.

Steering mechanism including controllable impact energy absorbing means

A device is disclosed for adjusting an energy absorbing system of an automobile vehicle steering column mounted in a support assembly which is connected to and attached to the structure of the vehicle by fixing devices each having a respective fixing axis. At least one fixing device includes at least one energy absorbing capsule disposed in the support assembly on a retaining axis and clamped in the support assembly by fastening devices. The fixing axis and the retaining axis coincide. The fastening devices are independent of the fixing devices and include a nut and a rod shoulder in order to allow adjustment to achieve the required clamping of the fastening devices to obtain the required energy absorption. Adjustment of the clamping of the energy absorbing capsule or capsules is therefore independent of the clamping of the devices for fixing the support assembly to the vehicle structure.

Energy absorbing system for a vehicle steering column

The invention concerns a device for clamping a system adjusting the position of a member () relative to a support assembly (). The adjustment system can adjust in height and/or in depth an automobile vehicle steering column body-tube considered as the member. The member is disposed inside two vertical uprights () of the support assembly. The clamping axis () is perpendicular to the two uprights. The device comprises a bracket () consisting of a base () and two tie-rods () which are connected by a closure and support member () on one () of the uprights, and an external clamping rod () mounted on the base. A locking assembly (), an intermediate member bearing on the upright () and disposed between the base () and the locking assembly (), and an axial retention assembly () for the locking assembly that is adjusted to obtain clamped and unclamped positions, are mounted on the external clamping rod ().

Device for clamping a member adjustable relative to a support assembly

A device for preventing rotation of the steering column body of an automobile vehicle comprising a support member attached to the chassis of the vehicle and a body which is held in position relative to the support member by a locking system. For the adjustment of the steering column concerned in the required direction at least one pair of coupling surfaces is joined to the support member and cooperate with a pair of coupling surfaces joined to the body. The coupling surfaces have a direction substantially parallel to the required adjustment direction and are angularly oriented with respect to major faces of the support member and the body, so that the coupling surfaces cooperate with each other upon locking in order to prevent rotation of the steering column body.

Device for preventing rotation of steering column body of an automobile

In a method of producing splines on a shaft, cold deformation without removal of chips is effected on the outside face of a small-thickness tube in a single operation. The cold deformation includes hammering the small-thickness tube by a conjugate and simultaneous action of beating and kneading. The depth of the splines can be as much as half the thickness of the tube.

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La Chapelle Encherie, France

André Laisement