초록 ▼

The invention provides a chassis for a truck trailer which can be manufactured for less cost, and can be lighter, for the same strength, as a conventional twin I-beam trailer as used in fifth wheel logging truck applications. The chassis of the invention has an elongated beam member having a general

The invention provides a chassis for a truck trailer which can be manufactured for less cost, and can be lighter, for the same strength, as a conventional twin I-beam trailer as used in fifth wheel logging truck applications. The chassis of the invention has an elongated beam member having a generally horizontal top wall, a pair of laterally spaced apart side wall portions with upper margin portions which are inclined inwardly and upwardly to merge continuously with the top wall portion. Lower margin portions of the side wall portions have flanges which have inner edges spaced apart to accommodate service conduits, and other components. A plurality of transversely extending bunk means are spaced apart longitudinally along the beam member at respective stations. The inwards inclination of the upper margin portions reduces chances of a loading grapple fouling with edges of the beam member when loading and unloading logs from the trailer. Furthermore, the service conduits and other components are protected from accidental damage during loading.

대표청구항 ▼

A truck trailer chassis comprising: (a) an elongated beam member having a top wall portion and a pair of laterally spaced apart side wall portions, the side wall portions having respective upper margin portions which are inclined inwardly and upwardly to merge continuously with the top wall portion,

A truck trailer chassis comprising: (a) an elongated beam member having a top wall portion and a pair of laterally spaced apart side wall portions, the side wall portions having respective upper margin portions which are inclined inwardly and upwardly to merge continuously with the top wall portion, the side wall portions having respective lower margin portions which have respective flanges to increase strength of the side wall portions, the flanges having inner edges which are spaced apart to provide a longitudinal gap therebetween, the longitudinal gap having a size to facilitate servicing of items located within an interior of the beam member, (b) a plurality of transversely extending bunk means spaced apart longitudinally along the beam member at respective stations, (c) internal transverse stiffening means for increasing stiffness of overall cross-section of the beam member, the stiffening means extending between at least two wall portions of the beam member and being spaced longitudinally apart at intervals along the beam member.