Patent ID: 6021576
Filing Date: 2000-02-08
Classification: G01B

Abstract:
A trailer trammel comprising, in combination:a pair of feet assemblies each including a central portion having a generally rectangular configuration with a top face, a bottom face, a pair of side faces and a pair of end faces, the top face having a triangular recess formed therein adjacent to a first end face and a vertically oriented bore formed therein adjacent to a second end face, the bottom face having a rectangular recess formed therein adjacent to the first end face and a vertically oriented threaded bore formed therein adjacent to the second end face, each foot assembly further including a rectangular cross bar coupled at a central extent thereof within the rectangular recess of the central portion such that a pair of ends extend therefrom each with a vertically oriented threaded bore formed therein, a plurality of bolts each with a hemispherical bottom and a threaded upper post for coupling with a corresponding threaded bore of the central portion and cross bar for supporting the corresponding assembly at an elevated orientation, and a set screw adapted to be releasably inserted within the bore of the top face of the central portion;a scribe unit including a post having a lower end for being removably secured within the bore of the top face of the central portion of one of the feet assemblies via the set screw thereof and an upper end with a scriber material extending therefrom for scribing a line around a jacked up wheel to ensure that the line is straight in true perspective with an axis; anda trammel assembly including a rectilinear connector beam for being removably mounted between the triangular recesses of the feet assemblies and a pair of pointers each including a sleeve for being selectively slid along the connector beam, a set screw for selectively fixing the sleeve with respect to the connector beam and a pointer rod having an inboard end coupled to the corresponding sleeve and a pointed outboard end, wherein the pointer rod is maintained at a constant angle, whereby a toe-in of the wheels may be determined;said trammel assembly being removable from the feet assemblies for checking a center-to-center axle alignment of the wheels.