Support for a vehicle body on a chassis

B - Operations – Transporting – 61 – F

Patent

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Details

B61F 5/02 (2006.01) B61F 5/14 (2006.01)

Patent

CA 2237122

The invention relates to a support for a vehicle body (11) on a chassis, especially a bogie (10) of a rail vehicle. A prior art support comprises a fluid-actuated piston-cylinder unit (60) fitted between the vehicle body (11) and the chassis (10) and a rocking stanchion (12) also fitted between the vehicle body (11) and the chassis (10) which comprises a first supporting component (13) and a second one (14) fitted between the first (13) and a vehicle component (10). Each supporting component (13, 14) has a break-away surface (31, 25, 16) bearing on another, where at least one break-away surface (31, 16) is cylindrical and the contact area between a pair of surfaces (31, 25, 16, 17) is linear. It is the aim of the invention to design such a support in such a way that it requires little space and in particular the distance between the vehicle body (11) and the chassis (10) can be very small. This is attained in that at least one of the two supporting components (13, 14) is annular, the piston-cylinder unit (60) is fitted inside the at least one annular supporting component (14) and the cylinder (61) of the piston-cylinder unit (60) has an outer flange (64) with a break-away surface (17) on which bears one (16) of the break-away surfaces of the annular supporting component (14), and the piston (62) of the piston-cylinder unit (60) bears on another component (10).

L'invention concerne un support de carrosserie (11) sur un châssis, notamment sur un bogie (10) d'un véhicule sur rails. Un système de support connu comprend une unité piston-cylindre (60) hydraulique disposée entre la carrosserie (11) et le châssis (10), et un appui pendulaire (12) également disposé entre la carrosserie (11) et le châssis (10). L'appui (12) comprend un premier élément support (13) et un second élément support (14), disposé entre le premier élément support (13) et une partie du véhicule (10). Chaque élément support (13, 14) présente une surface de dérive (31, 25, 16) par l'intermédiaire de laquelle il repose sur une autre surface de dérive (25, 31, 17). Au moins une (31, 16) des deux surfaces de dérive en contact (31, 25, 16, 17) est cylindrique, et la surface de contact d'une paire de surfaces de dérive (31, 25, 16, 17) est linéaire. Le but de l'invention est de donner à ce support une forme lui permettant d'occuper peu de place, de façon notamment que la distance entre la carrosserie (11) et le châssis (10) puisse être très petite. Pour cela, au moins un des deux éléments support (13, 14) a une forme annulaire, de façon que l'unité piston-cylindre (60) se trouve à l'intérieur d'au moins un élément support annulaire (14) et que le cylindre (61) de l'unité piston-cylindre (60) comporte un flasque externe (64) présentant une surface de dérive (17) sur laquelle repose l'élément support annulaire (14) par l'intermédiaire d'une surface de dérive (16), et que le piston (62) de l'unité piston-cylindre (60) repose sur une autre partie (10).

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