Extensor wing latch mechanism for a two-wheeled hand truck

Details Extensor wing latch mechanism for a two-wheeled hand truck Extensor wing latch mechanism for a two-wheeled hand truck

1995-02-23

1996-05-21

Keenan, James W.

Material or article handling

Tilting vehicle-type handler

414490, 414786, 280 4718, 280 4727, B62B 104

Patent

active

055183565

ABSTRACT:
A latch assembly mounted on a two-wheeled hand truck having vertically extending wings mounted on the hand truck frame side rails to pivot about axes extending generally parallel to said side rails from an operative position in which they extend laterally as substantially extensions of said side rails to a folded inoperative inboard transport position in which they lie inboard of the laterally inboard sides of said rails. The latch assembly is mounted on the frame for movement in a lateral path from a first position in which the latch assembly blocks movement of the wings to a laterally displaced second position in which the wings are freed to travel.

REFERENCES:
patent: 1418754 (1922-06-01), Vangiesen
patent: 1631333 (1927-06-01), Privat
patent: 2123669 (1938-07-01), Von der Ohe
patent: 2292234 (1942-08-01), Malo
patent: 2533352 (1950-12-01), Chapman et al.
patent: 2786692 (1957-03-01), Timpson
patent: 2812190 (1957-11-01), Clifton
patent: 3997182 (1976-12-01), Mortenson
patent: 4726602 (1988-02-01), Sanders et al.

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