Bertin & Cie

Louis De Goncourt

Kenneth H Sayers

Maurice Collard

This invention is directed to an improved device for connecting an elastic suspension leaf arranged between a load and a carrier, particularly of a vehicle, to the walls or the like and to the chassis. The suspension leaf comprises a composite material having in its vertical plane of symmetry a thickness increasing from the chassis to the end support of the wheel, its cross-section remaining approximately constant. At least one device for connecting to the chassis includes a lower part which retains the leaf and which has a trapezoidal shape in projection in a horizontal plane and a U-shaped cross-section in a vertical plane, and a semi-cylindrical upper part possessing an axial bore which receives a shock-absorbing device for fastening the device to the assembly. The dimensions of the lower part ensure that the part fits onto the gradually varying shape portion of the leaf at the fastening points of the leaf. This device, inter alia, utilizes the progressively varying shape of the elastic leaf to provide an enhanced assembly.

Connection devices for spring suspension leaves of a vehicle and method

Vehicle suspension assembly

Mounting device for a resilient leaf made of a composite material working in flexure having in its vertical plane of symmetry and over at least a part of its length, a thickness increasing towards one of its ends, and in its horizontal plane, a width decreasing towards the same end, the thicker end having an opening capable of cooperating with mounting means, comprising at least one loop (3) formed at the thick end of the leaf and at least one supporting member (12) having an at least partially cylindrical supporting surface (6, 7) cooperating with at least a part of the faces of the loop, the generatrices of the supporting surfaces being parallel to the axis of the loop.

Mounting device for a resilient leaf made of a composite material

The suspension device comprises at least one suspension element formed by an elastically yieldable leaf between two rigid end portions, and four bearing means symmetrically disposed in pairs relative to the transverse axis of symmetry of the leaf on each of the sides of the suspension element.

Growing community of inventors

Voisins Le Bretonneux, France

Louis De Goncourt