Telescoping drawbar for tandem tractor trailers

Details Telescoping drawbar for tandem tractor trailers Telescoping drawbar for tandem tractor trailers

1979-02-22

1980-10-28

Love, John J.

Land vehicles

Wheeled

Articulated vehicle

280482, B62D 5304

Patent

active

042303354

ABSTRACT:
A telescoping drawbar is provided to insure a variable length connection between a pulled trailer and a tandem connected trailer supported on a portable dolly. The telescoping drawbar includes a number of telescoped tube segments which are aligned and secured with interlocking wedges, plates and mating stops located on the surfaces of overlapping telescoping sections. The wedge-shaped plates and associated stops securely interlock the telescoping sections and accurately align locking openings for insertion of locking bolts.

REFERENCES:
patent: 1536751 (1925-05-01), Barnes
patent: 1563860 (1925-12-01), Jacobson
patent: 2447737 (1948-08-01), Christensen
patent: 2451698 (1948-10-01), Swinehart
patent: 3717363 (1973-02-01), Berends
patent: 3746369 (1973-07-01), Neff
patent: 3827723 (1974-08-01), Neff

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