Patent GB-641782-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B61D17/08
Filed: 1946-03-21
Abstract: 641,782. Vehicle bodies. BUDD CO. March 21, 1946, No. 8763. Convention date, March 31, 1945. [Classes 103(iv) and 108(i)] A vehicle side wall is adapted to distribute the stresses from the suspension regions of the body into the remainder of the side wall and for transmitting at least part of the stresses from the side wall into the adjoining portions of the roof. Each side comprises an end post 1, Fig. 3, at the non-vestibule end and a post 2 along the inboard margin of the door opening and a plurality of posts 3 between the window openings. The posts are connected by four longitudinal chord members 4, 5, 6 and 7 which extend the length of the car and are braced together by vertical posts 8, 9 and 10 between successive posts 3 and in the middle region of the wall the chord members 6 and 7 are interconnected by diagopal braces 11. The roof has a plurality of carlines 12 interconnected by outer corrugated sheeting 13, Fig. 7, and additional longitudinal reinforcing plates 14, 15, as well as a marginal chord member 16, the roof members being tied to the upper portion of the side wall structure as described in Specification 641,784. In the end regions the roof is further reinforced by transversely extending panels 17, 18 and 19, Fig. 2, and at the vestibule end by an intermediate ceiling and shear panel structure 20, Fig. 7, which are described in Specifications 641,783 and 641,784. The posts 1, 2 are of outwardly facing channel section and the posts 3 are of inwardly facing channel section and the upper and lower chord members 4, 7 form a downwardly facing channel and Z-section respectively. The intermediate chord members 5, 6, Fig. 7, comprise an inner strip 33, 34 and an outer moulding strip 35, 36 which extend the length of the car and have 'short channel &c. sections between them which space the posts 3. Each side is stiffened at the ends by three angle section posts 40,- Figs. 3, 4 and 5, which act as shear panels and extend between the upper and lower chord members 4, 7, these members having" wide outer faces which are joggled to receive the edge of the face of the adjoining member and is welded thereto. Similar sectioned shear panels 44 connect the chord members 6 and 7 under the end windows and additional vertical stiffeners formed by channel members 45 are arranged opposite the location C of the truck suspension whilst braces 51 and 52 are secured respectively in the post 2 and in some of the members 40 at the location of the jacking pads. The lower ends of the posts, shear panels &c. are secured between an arm 30, Fig. 7, of the Z- section chord 7 and a longitudinal band 50, the upper ends of the shear panels being attached to the chord member 6 between the moulding strip 36 and inner strip 34 which are spaced apart by channel sectioned bridging members 38, 54, Fig. 8 (not shown). whilst the upper ends of the angle section members 40 are attached to the upper chord 4 which abuts the roof marginal member 16. The posts 1, 2 and 3 in the end regions of the car, together with the shear panels 40, 44 and 45, distribute the stresses originating at the truck suspension C over a wide area of the side wall and into the upper chord structure and roof. Certain of the shear panels under the end windows may be omitted and replaced by diagonal braces. Specifications 606,945 and 606,946 are referred to.