Land vehicles – Wheeled – Running gear
Patent
1986-02-24
1988-01-12
Love, John J.
Land vehicles
Wheeled
Running gear
280111, B62D 2102
Patent
active
047186879
DESCRIPTION:
BRIEF SUMMARY
The invention concerns a multi-axle motor vehicle, in particular commercial vehicles, which has a warp flexible frame, preferably a frame connected with a superimposed assembly frame, and a body with very little warping capability supported on this frame by means of support elements, preferably a body with a bottom construction group, in particular, a body that contains equipment such as a workshop body of a workshop car, in which case a connection that flexibly absorbs vertical and longitudinal forces and allows limited relative movements between the frame and the body is provided in the direction of the longitudinal extension of the vehicle in the middle section of the body between the latter and the frame, and at least one support element is located in at least one additional region shifted in the direction of the longitudinal extension of the vehicle, in which case a side thrust support connection that absorbs transverse forces is provided in at least one region of the body between the latter and the frame.
A multi-axle motor vehicle in which the body is supported on a number of springs and where additional expensive elements are provided for absorbing the forces arising between body and frame, especially during longitudinal and lateral accelerations, including a flexible transverse guide side thrust support connection (DE-OS No. 22 01 339), is known. This familiar arrangement has the disadvantage that it does not take into account the fact that it is only in the neutral phase (neutral axis) that no movements occur, while in this familiar arrangement all the support elements are located in a region in which substantial deformations occur in the vehicle frame. This familiar solution resulted in cracks in the frame and in the region of the body bottom. The transverse guide thrust support connection has a different significance in connection with this body than in connection with the present invention.
A transport device for extremely large and heavy loads, which consists of three individual chassis, each with a caterpillar pair, is also known. The total load is supported on a carrier body, which is in turn supported on three corners, i.e., on each corner on the midpoint of an individual chassis, in which case a sturdy vertical journal is provided at each of these support points, which is supported with a spherical surface against a flat support plate and is surrounded on all sides by a cylindrical guide that absorbs the horizontal forces. Due to the support on the spherical surface, the chassis can swing through a certain angle around the midpoint of the spherical surface (GB-PS No. 1,511,140). Due to the cylindrical guide, which serves to transfer the horizontal forces, the spherical surface cannot ride on the flat surface, but must necessarily slide on it with friction. Under a heavy load this is possible only with the involvement of large forces and thus considerable wear. The point of surface will always be located at the midpoint of the cylindrical guide that absorbs the horizontal forces. In another familiar motor vehicle the bottom construction group of the body is supported at its forward end by means of two spring elements with large compensation paths on the motor vehicle frame and is supported at the rear end with respect to the frame at a third bearing point located in the middle of the vehicle frame and shifted in the longitudinal direction, in the form of a rubber ball-and-socket joint, in which case two fishplates are located between them as an additional bearing point pair between the bottom construction group and vehicle frame (DE-OS No. 29 11 722). The spring elements are indeed deformable, but the deformation occurs under the effect of forces that are conveyed into the bottom construction group of the body and accordingly load the body with forces. The forces introduced on the middle bearing point pair consisting of fishplates are very large due to the design of the connection.
The object of the invention is particularly suited for vehicles with a large axle spacing and for vehicles th
REFERENCES:
patent: 2032657 (1936-03-01), Frederickson
patent: 3506079 (1970-04-01), Madler
patent: 4128255 (1978-12-01), Coldren
Hartmann Ernst
Stuhr Waldemar
Ferriter Karin L.
Love John J.
Matra-Werke GmbH
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